WO1994019160A1 - Mixing mill and inspection machine for a mixing sheet - Google Patents

Abstract

A sheet inspecting device has a group of mixing rolls, formwork feeding means, sheet applying means and foreign matter detecting means, a formwork having a window portion for transmitting light and a cutting blade for cutting a sheet, a sheet inspecting sample making device having a group of mixing rolls, formwork feeding means, and sheet applying means, an automatic sheet thickness detecting device having at least two probes, a displacement amount detecting portion, a memory and a processing unit, an automatic mixing device having a pair of heat rolls, a temperature sensor, a position sensor, a bank sensor and controlling means, a blade of a mixing device having a scoop face, left and right guide faces and a rear guide face, said mixing device having a pair of heat rolls and a falling matter returning device, a roll sheet cutting device having a wire for cutting a sheet wound into a roll, and a heat roll manufacturing device having a cleaning roll, cleaning roll displacing means and a dirt removing member.

Description

 Specification

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Technical field

 The present invention relates to a sheet inspection apparatus, a mold, a sample producing apparatus for sheet inspection, and a mold feeding means. More specifically, a sheet formed into a roll by kneading is automatically cut and separated from the roll. The sheet is attached to the formwork, and the cut sheet adhered and held on the formwork is optically inspected to determine the presence or absence of foreign matter in the sheet; i. A simple formwork that can be suitably used for the sheet inspection device and that can produce a sheet inspection sample, and a sheet that can fully automatically produce such a sheet inspection sample. The present invention relates to a sample preparation device for inspection and a form feeding device capable of automatically sending out a form required for preparing a sample for sheet inspection toward a roll.

 The present invention relates to an automatic sheet thickness detecting device, and more particularly, to an automatic sheet thickness detecting device capable of automatically detecting the thickness of a sheet fed to a kneading roll heated to a high temperature.

 The present invention relates to an automatic kneading apparatus, and more particularly, to an automatic kneading apparatus for kneading a powdery material supplied over a gap between a pair of heating rolls and rotating a roll sheet around a peripheral surface of the heating roll.

 The present invention relates to a kneading apparatus, and more particularly, to perform kneading using a sheet winding roll and an opposing roll and adjust the width of a roll sheet wound around on the sheet winding roll to efficiently mix a kneading sheet having a predetermined width. It relates to a kneading device that can be manufactured well.

The present invention relates to a kneading apparatus and a fallen material returning apparatus used in the kneading apparatus, and more particularly to a powdery material or a molten or semi-molten material that falls from a gap between heating rolls when kneading with a pair of heating rolls. The falling object in the state between the heating rolls By returning to the upper part of the gap, for example, when the falling object is a powdery material at the initial stage of kneading, it is possible to prevent the material from being consumed, and to use a sheet-like material in which the falling object is in a molten or semi-molten state. In some cases, the present invention relates to a kneading apparatus capable of automatically feeding such a sheet-like material to a heating roll without human intervention, and a falling object returning apparatus used therein.

 The present invention relates to a roll sheet cutting apparatus, and more particularly, to a roll sheet cutting apparatus having a simple configuration capable of accurately cutting a sheet wound around a sheet winding roll in a kneading roll.

 The present invention relates to a heating roll cleaning device, and more particularly, to a heating roll cleaning device for kneading a synthetic resin or the like and cleaning a surface of a heating roll for manufacturing a sheet. Background art

 In general, when synthetic resin is manufactured, it is necessary for the manufacturer to check whether or not gel / fish eye etc. are generated in the synthetic resin for quality control. Also, in the case of a processing manufacturer that processes synthetic resin obtained from the manufacturer into various products, it is necessary to check the obtained synthetic resin in advance and check for the presence of fish gel, etc. It is necessary to consider the extent to which fish eyes and gels (sometimes referred to as gels) are generated when processed under the specified processing conditions. If such fish eyes are present, even if printing is performed on the surface of the synthetic resin molded product, the ink will not run well, and only defective products will be obtained.

 There is a test roll device as an apparatus for inspecting a synthetic resin for the generation of fish gel or the like.

The test roll device has a pair of heating rolls arranged in parallel. The gap between the pair of heating rolls can be freely adjusted, the rotation direction and the rotation speed can be freely adjusted, and the temperature of the heating roll can be freely set. You can do it. The initial gap between such a pair of heating rolls is set to, for example, about 0.2 mm. Using this heating roll, a resin sheet for testing is prepared as follows. A predetermined amount of resin powder is supplied between the heating rolls. Since there is a slight gap between the pair of heating rolls, even if a small portion of the resin powder may fall from the gap, most of the resin powder is moved upward from the gap between the pair of heating rolls. Store in the form of a mount.

 Therefore, by heating the heating nozzle to a predetermined temperature and rotating a pair of heating rolls at different rotation speeds or the same rotation speed, shear and heat energy are given to the resin powder on the heating roll. . The resin powder itself generates heat by applying the shearing force by the heating roll.

 The resin that has become semi-molten due to the heat generated by the resin powder itself and the heating by the heating rolls is dripped in a sheet form from the gap that is slightly more widened between the pair of heating rolls, and the tip of the sheet form is dripped. The heating roll is further hung by rotation, and the tip of the sheet is hung around the heating roll. As a result, in the pair of heating rolls, the resin in a semi-molten state or a molten state is wrapped in a sheet shape around one heating roll, and the gap between the pair of heating rolls is molten. The accumulated resin becomes a pool and becomes present.

 If kneading is carried out for a predetermined period of time in this condition, the pool of molten resin becomes smaller with the lapse of time, and the thickness of the sheet wound around the heating roll also increases. When the pool of the molten resin has completely disappeared, kneading by the heating roll is stopped, and the resin sheet is separated from the heating roll.

 To separate the resin sheet, the resin sheet wound around the stationary heating roll is cut along the axis of the heating roll, and then the cutting end of the resin sheet is pulled while rotating the heating roll. Separate the resin sheet from the heating roll. Using the resin sheet manufactured by the test roll apparatus in this manner, the presence of gel fish in the resin sheet is inspected as follows.

That is, the resin sheet obtained as described above is stretched by appropriate means, irradiated with light from the back side of the resin sheet, and visually observed from the front side of the resin sheet. If fishy or the like is present in the resin sheet, the part appears to glow white, so it is not possible to count the points that glow white, or use a caliper or object By measuring with a marker or the like, fish eyes or the like present in the resin sheet are detected and measured.

 When the conventional test roll device described above is used, the operation of cutting the resin sheet wound around the peripheral surface of the heating roll, the operation of stretching the resin sheet separated from the heating roll, and the operation during the resin sheet Inspections of fishy etc. existing in the country are all by hand.

 Therefore, for example, when cutting the resin sheet wound around the peripheral surface of the heating roll by hand, the cutting operation is performed near the high-temperature heating roll that is not completely cold, so that workers may suffer burns. There is a danger that the resin sheet is cut by hand, so that the shape of the resin sheet to be separated becomes irregular and a uniform size of the resin sheet cannot be obtained.

 Also, it is extremely troublesome to manually stretch the separated resin sheet on the formwork, and it is often impossible to adjust the resin sheet with a constant tension.

 In addition, the fishery is detected by visually observing the stretched resin sheet with light, and the number and size of the fishery are likely to hurt the eyes of workers when measuring the number and size. In addition, there is a major problem in that measurement data can cause considerable errors by humans.

 When the conventional test roll device described above is used, the thickness of the resin sheet wound around the peripheral surface of the heating kneading roll is determined by cutting off a part of the wound resin sheet with an appropriate tool, for example, a shubauchiura. It was determined by measuring a fragment of the obtained resin sheet with a dial gauge.

 However, manually cutting off a portion of the resin sheet from the rotating heating kneading roll involves a great deal of danger, such as burns to the operator and fingers being pinched between the heating kneading rolls. Was. In addition, since the dial gauge is used manually, there is a problem that the measured thickness of the sheet varies among individuals.

In the conventional conventional kneading apparatus including the conventional test roll described above, the gap size between the pair of heating rolls is determined in advance, and the thickness of the sheet wound around the heating roll increases. The gap between the pair of heating rolls widens as the temperature increases. The rotation direction of the heating roll during kneading is such that the bank rolls in. In a conventional kneading apparatus, an operator who operates the kneading apparatus operates based on his / her own experience and intuition. Therefore, in the conventional kneading apparatus, it cannot be said that the kneading operation is always performed under the optimum conditions, and the kneading operation procedure is individually performed by the operator, and the degree of kneading is not always constant. There was a problem.

 In addition, in the conventional kneading apparatus, when the material is kneaded, the width of a roll sheet wound around a heating roll (hereinafter, sometimes referred to as a sheet winding roll) around which the sheet is wound is determined by time. It grows larger with the passage of time. Therefore, a pair of width regulating plate members having a bottom end portion having the same curvature as the peripheral surface of the sheet winding roll are attached to the peripheral surface of the sheet winding roll so that the width of the roll sheet becomes a predetermined width. Erected in

 However, the width regulating plate member merely regulates the width of the roll sheet, and does not contribute to the kneading action at all.

 On the other hand, in a conventional kneading apparatus, a roll sheet enters a bank formed in a gap between a heating roll (hereinafter, sometimes referred to as an opposing roll) arranged opposite to a sheet winding roll and a sheet winding roll. Thereby, the kneading action is achieved. In order to make this kneading operation efficient, the relative speed between the opposing roll and the sheet winding roll is adjusted, or the temperature of these rolls is adjusted.

 However, the above-described kneading action in a conventional kneading apparatus is not yet sufficient, and it takes a long time for kneading, or the kneading operation and the roll sheet width adjusting operation are separate, so that the kneading operation as a whole is complicated. There's a problem.

 When a kneading sheet is prepared using a conventional kneading apparatus, in the initial stage of preparing a kneading sheet, the heating roll is heated to a predetermined temperature and the heating roll is rotated to obtain a gap between the heating rolls. Heat and shear are applied to the upper mount, causing the powdered material to become bonded and semi-molten as the particles fuse together. Then, the material having the appropriate fluidity starts to hang down from the gap between the heating rolls.

When the portion hanging down from the gap between the heating rolls has an appropriate length, the operator operating this kneading apparatus can use appropriate tools such as a knife or a spatula. By using it, the material part hanging down from the gap between the heating rolls is guided along the peripheral surface of one heating roll, and finally, the tip of the hanging part is Guide to the top of the gap.

 In a conventional kneading apparatus that prevents such manual work, there is a danger that an operator's hand may be caught between the heating rolls.

 In addition, in such a conventional kneading apparatus, in the initial stage of kneading, although the gap between the heating rolls is made as small as possible, the powdery material leaks from the gap between the heating ports, so that considerable loss of the powdery material is caused. Is generated.

 In addition, a receiving member is arranged below the pair of heating rolls so as to eliminate the opening of the powdery material, and a falling object from between the heating rolls is received by the receiving member. It is also conceivable to return the accumulated powdery material to the gap between the pair of heating rolls. However, when doing so, the work of arranging the receiving member one by one below the gap between the heating rolls, picking it up and lifting it above the gap between the heating rolls, and dropping the powdery material from the receiving member toward the gap between the heating rolls is It is extremely complicated, and if such an operation is performed manually, there is a risk that the operator may be burned by the heating roll.

 Also, if kneading by the heating port progresses to some extent, the sheet end of the material that hangs down from the heating roll must be wound around the heating roll. This operation has been conventionally performed manually. Therefore, when winding the sheet edge, there was a great risk that the operator would be burned by the heating roll.

 When a sheet made of a material such as a sheet of vinyl chloride resin or silicone resin or an elastic polymer such as rubber or EPDM is manufactured using a conventional kneading apparatus, it is necessary to remove the sheet from the sheet winding roll. Various methods can be considered to remove the sheet from the sheet winding roll.

According to the study of the present inventors, first, it is conceivable that the sheet of the material wound around the sheet winding roll is cut with a thin blade scraper. When the sheet on the sheet winding roll is cut with a roller scraper, the cut end of the sheet may be wavy, and a separation sheet having a linear cut end may not be obtained. found. Moreover, the scraper is a sheet on the sheet winding roll. It was also clarified that cutting the sheet by pressing it against the sheet would damage the surface of the sheet winding roll with the scraper blade, and it was necessary to take measures to prevent the sheet winding roll from being damaged.

 We also considered cutting the sheet on the sheet winding roll with a sharp knife along the axis of the sheet winding roll with a sharp knife.

 However, it has been found that it is difficult to cut the sheet accurately and linearly along the axis of the sheet winding roll by using the knife. Furthermore, there is a possibility that the surface of the sheet winding roll may be scratched with a knife as in the case of the scraper, and some measures to prevent scratching are required.

 In the past, the sheet was cut by an operator operating a scraper or knife.However, the heating roll at the time of cutting still has a considerable amount of residual heat. There was a danger of burns.

 In the conventional kneading apparatus, it was necessary to clean the surface of the heating sheet after removing the sheet created by kneading from the heating roll. In such a case, in the related art, a material such as a synthetic resin or an elastic polymer adhered to the heating roll has been removed by a worker using a cloth or the like. However, there has been a problem that such a removing means requires much time for the removing operation, and lowers the operating rate of the kneading apparatus. Also, since both heating rolls are extremely hot, there is also the danger of burns when performing manual work.

 The present invention has been made based on the above circumstances.

 That is, an object of the present invention is to provide a sheet inspection apparatus capable of automatically detecting or measuring fish eyes, gels, and the like present on a resin sheet without bothering humans.

 Another object of the present invention is to easily load a resin sheet obtained by cutting a roll-shaped resin sheet wound around a kneading roll which is also a heating roll, and easily inspect the resin sheet by means of foreign matter detection means. An object of the present invention is to provide a formwork capable of performing the above.

Still another object of the present invention is to provide a sheet inspection Samb loaded with a resin sheet, which can be easily loaded into a foreign matter detection means for detecting foreign matter in a resin sheet. An object of the present invention is to provide a sheet inspection sample maker capable of easily and automatically preparing a file.

 Still another object of the present invention is to be suitable for preparing the above-mentioned sheet inspection sample, and to be able to automatically stretch a roll-shaped resin sheet wound around a kneading roll on a mold. Another object of the present invention is to provide a form feeding device capable of feeding a form toward a kneading roll.

 An object of the present invention is to provide an automatic sheet thickness detecting device capable of automatically, safely, and accurately measuring a sheet formed by a heating kneading roll without manual operation.

 An object of the present invention is to provide an automatic kneading apparatus capable of uniformly kneading materials.

 SUMMARY OF THE INVENTION An object of the present invention is to provide a kneading apparatus capable of efficiently kneading raw materials and performing kneading and roll sheet width adjustment at the same time.

 Another object of the present invention is to provide a kneading apparatus capable of efficiently performing kneading.

 An object of the present invention is to provide a kneading apparatus capable of effectively returning a falling object from a gap between heating rolls to the gap between the heating rolls, and a falling object returning apparatus used in the kneading apparatus.

 Another object of the present invention is to provide a kneading apparatus and a kneading apparatus capable of automatically returning a powdery material falling from a gap between heating rolls to a gap between heating rolls at an initial stage of kneading, thereby reducing a loss of powdery material. An object of the present invention is to provide a fallen object returning device used for the device.

Still another object of the present invention is to reduce the loss of the powdery material by automatically returning the material on the powder that falls from the gap between the heating rolls to the gap between the heating rolls at the initial stage of kneading. A kneading device capable of automatically winding the sheet-like end of the material falling from the gap between the heating rolls as the degree of kneading progresses, and a drop used in the kneading device. An object of the present invention is to provide a goods return device. SUMMARY OF THE INVENTION It is an object of the present invention to enable a sheet wound around a sheet winding roll in a kneading roll to be cut without a manual operation with an accurate linear cut end, and that the sheet winding roll can be cut. Does not damage the surface A roll sheet cutting device is provided.

 An object of the present invention is to provide a heating roll cleaning device capable of automatically cleaning the surfaces of a pair of heating rolls, improving the operation rate and ensuring safety. is there. Disclosure of the invention

 The invention according to claim 1 for solving the above-mentioned problem is characterized in that, in the kneading roll group, among the kneading roll groups, a sheet winding roll for covering a sheet of a predetermined width on the surface is provided with a light source. Form feeding means for feeding a form having a window for transmission, and by pressing the form sent out toward the sheet winding roll by the form feeding means, by pressing against the sheet winding roll, Sheet sticking means for cutting the sheet covering the surface of the sheet winding roll and sticking and moving the cut sheet to the form, and foreign matter in the sheet stuck to the form by the sheet sticking means And a foreign object detecting means for detecting a sheet.

 The sheet inspection apparatus may have a configuration in which the sheet sticking means includes a pinch roll that presses the form sent to a sheet winding roll against a sheet winding roll.

 The sheet inspection apparatus according to claim 1, wherein the form feeding unit sends the form to a gap between a sheet winding roll and a facing roll facing the sheet winding opening, The sheet sticking means may have the above-mentioned opposed roll.

 The sheet inspection apparatus according to claim 1, wherein the foreign matter detection unit irradiates light from one side of a mold to which the sheet is attached, and a sheet illuminated by the light irradiation apparatus. It is possible to have a configuration having an imaging device for photographing a camera, and a judging means for judging a foreign substance in the seat based on a video signal output from the imaging device.

 The sheet inspection apparatus further includes a memory for writing and reading identification data obtained by reading an identification symbol provided on the formwork, the identification data, and data for determining foreign matter in the sheet by the determination means. It can be configured.

The formwork of the present invention cuts the sheet covering the sheet winding roll and pastes it. A plate material large enough to be attached, a light-transmitting window provided at the center of the plate, and a linear cutting blade provided near the tip of the plate. I do.

 The formwork of the present invention comprises a sheet material large enough to cut and seal the sheet covering the sheet winding roll, and a light transmitting window provided at the center of the sheet material. And a taper portion or a round portion formed at an opening edge of the window portion.

 The mold having the above-described configuration is obtained by applying an adhesive to a surface of the plate material to which the sheet is to be attached.

 The sheet inspection sample maker according to the present invention includes: a kneading roll group; and a mold having a window portion for transmitting light toward a sheet winding roll that covers a sheet of a predetermined width. Form feeding means for feeding, and cutting the sheet covering the surface of the sheet winding roll by pressing the form sent out toward the sheet winding roll by the form feeding means against the sheet winding roll. And a sheet sticking means for sticking and moving the cut sheet to the formwork.

 A first form feeding device according to the present invention includes: a case accommodating a plurality of forms; form selecting means for selecting one form from the forms in the case; and a selected form. Form guiding means for guiding the frame toward the sheet winding roll. A second form feeding device according to the present invention includes a housing having a front portion that accommodates a plurality of forms and has an upper opening that opens upward and a lower opening that opens downward, A pressing member that presses the housed formwork against the back of the front part, and a formwork other than the formwork to be drawn out by pressing the lower end of the formwork housed in the housing further back than the back of the front part. A lifting member that lifts the foremost form while suctioning the surface of the foremost form behind the front part, which is exposed to the upper opening, with a first suction member. Means, while sucking a lower end of the earliest formwork picked up by the picking up means with a second suction member, toward a sheet winding roll for covering a sheet of a predetermined width on the surface; Guide means for guiding It is characterized by the following.

The above invention will be described in more detail. The sheet inspection apparatus according to the present invention includes a kneading roll group having at least a pair of heating rolls. First, for example, a resin is kneaded by a kneading roll group, and a resin sheet, for example, is wound around one kneading roll in a roll shape. One kneading roll in which the sheet is wound in a roll shape is called a sheet winding roll. Rolls having their axes parallel to each other and arranged opposite to each other are referred to as opposed rolls.

 A mold having a window for light transmission is sent out toward the sheet winding roll by the mold feeding means. The formwork includes a sheet material large enough to cut and cover the sheet covering the sheet winding roll, and a light transmission window provided at the center of the sheet material. Have. The mold may be configured so that the resin sheet or the resin film wound around the sheet winding roll can be cut off, and the cut resin sheet or the resin film can be stretched over the window. In order to smoothly cut off the resin sheet or the resin film wound around the sheet winding roll, it is desirable to provide a linear cutting blade near the front end of the plate material. Further, when the mold is passed through the gap between the sheet winding roll and the opposing roll, even if the cutting blade is not provided on the surface of the mold, the edge of the fTrl opening constituting the window is formed by a taper. Alternatively, the resin film or the resin sheet wound around the sheet winding roll is transferred to the formwork and is spread without looseness even if it is simply left in the round portion.

 When the leading end of the form arrives near the sheet on the sheet winding roll by the mold feeding means, the sheet sticking means presses the form against the sheet wound on the sheet winding roll. Since a cutting blade is provided on the front end surface of the mold, the sheet is cut by being pressed against the sheet of the sheet winding roll. Even after the sheet is cut, the mold is sent forward by the mold feeding means, and as the mold passes through the sheet winding roll, the cut sheet is peeled off from the surface of the sheet winding roll. Attach the cutting sheet to the surface of the formwork. The foreign matter in the sheet, such as fishy, is detected by the foreign matter detecting means on the sheet attached and moved to the formwork.

The basic operation of the sheet inspection apparatus according to the present invention is as described above, but the sheet sticking means winds the form sent out to the sheet winding roll by sheet winding. With a configuration having a pinch roll that presses against the roll, the vinch roll presses the form against the sheet on the sheet winding roll, and the cutting blade of the form cuts the sheet. Become.

 Further, the form feeding means feeds the form into a gap between a sheet winding roll and an opposing roll opposed to the sheet winding roll, and the sheet sticking means is provided with the opposing roll. In this case, the form sent out by the form feeding means between the facing roll and the sheet winding roll is sandwiched between the facing roll and the sheet winding roll. As a result, the cutting blade of the formwork cuts the sheet on the sheet winding roll. Then, when the formwork passes between the opposing roll and the sheet winding roll, the cut sheet on the sheet winding roll is attached and transferred to the formwork.

 A light source configured to irradiate light from one side of the form to which the sheet is attached; an imaging device configured to capture an image of a sheet illuminated by the light source; and a video signal output from the imaging device. The sheet attached to the formwork is irradiated with light from one side by a light source, and an image is disposed on the other side of the sheet. The device captures an image of the light-irradiated sheet. The determination means detects foreign matter based on, for example, a video signal of a sheet output from the imaging device, or counts the number and size of the foreign matter.

 The sheet inspection sample maker according to the present invention is arranged such that, among the kneading roll groups, a cutting blade is formed on a surface near a front end by a form feeding means toward a sheet winding roll that covers a surface of a sheet of a predetermined width. The formwork having the window portion for light transmission is fed and the formwork sent out is pressed against the sheet winding roll by a sheet sticking means, and the sheet covering the surface of the sheet winding roll is cut. The cut sheet is adhered to the mold and moved to form a sheet inspection sample in which the sheet is adhered to the mold.

 Preferable examples of the form feeding means include the first and second form feeding devices described above.

According to the first form feeder having the above configuration, one of the plurality of forms housed in the housing is selected by the form selecting means, and the selected form is a form proposal. The sheet is fed toward the sheet winding roll by the internal means. In the second form feeding device having the above-described configuration, in an initial state, a plurality of forms accommodated in the housing are pressed against the back surface of the front part of the housing by the pressing member. I have. Next, when it becomes necessary to supply the form to the sheet winding roll, the first suction member suctions the surface of the foremost form present behind the front part, which is exposed to the upper opening. I do. Next, the pressing of the mold by the pressing member is released. The pick-up means sucks the foremost mold of the plurality of molds housed in the housing with the first suction member, and lifts the foremost mold. When the foremost form is being lifted, the lower end pressing member and the pressing member sandwich the lower part of the second and subsequent plural forms, and these form are attached to the front surface of the housing. To the farther side than the back. Thus, the first formwork does not receive the pressing force of the pressing member. Thereafter, the suction of the mold by the first suction member is released, and the lower part of the foremost mold is sucked by the second suction member. While the lower part of the foremost form is being sucked by the second suction member, the form is pulled out of the housing by the guiding means and guided to the sheet winding roll. When the first formwork is completely pulled out of the housing, the pressing member and the lower end pressing member sandwich the plurality of formwork of the second sheet, and the pressing member and the lower end pressing member move to the front part of the housing. Move forward toward. Thus, the second formwork becomes the first formwork, and the above-described operation procedure can be repeated. The sheet thickness automatic detection device of the present invention comprises at least two measuring elements arranged at predetermined intervals on a base capable of moving forward and backward toward a kneading roll, and detects an amount of movement of the measuring element by an electric distance. A displacement amount detection unit that outputs a signal, a memory that stores data output from the displacement amount detection unit when the probe comes into contact with the surface of the kneading roll on which the sheet is not wound, An arithmetic processing unit that calculates the thickness of the sheet based on the data output from the displacement amount detection unit when the probe comes in contact with the sheet and the data read from the memory. It is characterized by:

In the automatic sheet thickness detecting apparatus of the present invention, before forming a sheet with the kneading roll, a measuring element is brought into contact with the surface of the kneading roll, and data output from the displacement amount detecting unit at that time is read. Store it in memory. The data shows 0 points. Next Then, when the sheet is formed by the kneading roll, the tracing stylus is brought into contact with the surface of the sheet again, and the data output from the displacement detection unit and the data stored in the memory at that time are calculated. The thickness of the sheet is calculated by the subtraction by the processing unit.

 In this way, the thickness of the sheet on the kneading roll is automatically measured without manual intervention, so that there is no personal injury due to the kneading roll, and the thickness of the sheet is accurately calculated. The automatic kneading apparatus of the present invention comprises: a pair of heating rolls capable of adjusting the gap length of each other and capable of changing the rotation direction and rotation speed; and measuring the heating temperature of the heating roll. A temperature sensor that outputs temperature measurement data shown, a rotation state sensor that detects a rotation state of each of the heating rolls, and outputs respective detection data, and a position sensor that measures a gap between the pair of heating rolls. A bank sensor for detecting a state of a bank existing in a gap between the pair of heating rolls, and various data output from the various sensors are input to form and disappear a bank in the gap between the pair of heating rolls. Is repeated a required number of times so that the relative distance, heating temperature, rotation direction and rotation speed of each of the pair of heating rolls are automatically controlled. And a step.

According to the automatic kneading apparatus of the present invention, first, a predetermined amount of the raw material powder is supplied onto a pair of heating roll gaps adjusted to the minimum roll gap, and the heating roll is heated to a predetermined temperature, and the pair of heating powders is heated. By rotating the heating rolls in the normal direction or in the opposite directions, heat and shear force are applied to the material powder by the heating rolls. The heating temperature of the heating roll is monitored by a temperature sensor, and the state of the bank formed in the gap between the heating rolls is monitored by a bank sensor. The bank sensor may be a sensor that is being formed between the heating rolls or has a function of detecting the presence of the formed bank, for example, a torque meter of a heating roll, or a non-contact type. And the like. As the powdered material is gradually kneaded by heating the heating roll and shearing due to rotation, the gap between the heating rolls, the heating temperature, the rotation direction, and the rotation speed are further adjusted by the control means, and the material is removed by the heating roll. Continue kneading. As a result of kneading, when a bank of molten material is formed between the heating rolls, the optimal heating roll gap, heating temperature, rotation direction, and rotation speed are determined by control means, and the optimum conditions are determined. Continue kneading with.

 After the kneading is continued for a certain period of time with the bank formed, the gap between the heating rolls [15] is widened by the control means, and the heating temperature, the rotation speed and the rotation direction of the heating rolls are adjusted optimally. The bank existing in the heating roll disappears, and the sheet of the material kneaded in one of the heating rolls is turned off.

 After the sheet of material is rolled into one of the heating rolls and the bank of heating rolls disappears, the gap between the heating rolls is reduced again by the control means, and the heating temperature, rotation speed, and rotation of the heating rolls are reduced. By adjusting the direction, etc., a bank is formed in the gap between the heating rolls. The material is kneaded with a heating roll during the matching period with the bank formed.

 After the kneading is continued for a certain period of time with the bank formed, the gap between the heating rolls is widened by the control means, and the heating temperature, the rotation speed and the rotation direction of the heating rolls are adjusted optimally. The bank disappears, and the sheet of the material kneaded on one of the heating rolls is worn out.

 Thus, the formation and disappearance of the bank between the heating rolls are repeated a required number of times. As a result, a sheet that has been sufficiently kneaded can be obtained. The first kneading apparatus of the present invention comprises: an opposing roll; a sheet winding roll disposed opposite to the opposing roll; and a roll sheet wound on the sheet while being arranged on the sheet winding roll. The rake face to be peeled off from the roll, the rear guide face that guides the peeled roll sheet so as to fold in the opposite direction to the direction in which the roll sheet advances by rotation of the sheet winding roll, and the peeled roll sheet And a pair of blades having left and right guide surfaces for guiding the sheet so as to be folded in the direction of the center line of the roll sheet by rotation of the sheet winding roll.

The second kneading apparatus of the present invention includes a counter roll, a sheet winding roll arranged opposite to the counter roll, and a roll winding sheet, which is disposed on the sheet winding roll and rolls the sheet in a sheet. Rake face to be peeled from roll, peeled A rear guide surface that guides the roll sheet so as to be folded in a direction opposite to the direction in which the roll sheet advances due to the rotation of the sheet winding roll, and a roll sheet that is peeled off by rotating the sheet winding roll. And a blade having a left and right guide surface for guiding it so as to be folded on the end side of the blade.

 Each of the first and second kneading apparatuses may have a configuration in which the blade is disposed on a sheet winding roll so as to be displaceable in a roll axis direction by a driving source.

 According to the first kneading apparatus, the rake face of the blade peels off the roll sheet that rolls around the surface of the sheet winding roll from the surface of the sheet winding roll, and the peeled roll sheet has a rear guide surface. As a result, the sheet is folded in the direction opposite to the rotation direction of the roll sheet, and is folded toward the center of the roll sheet by the left and right guide surfaces. The roll sheet peeled off from the surface of the sheet winding roll is placed on the opposite side to the direction of rotation of the roll sheet, and is folded in the center line direction of the roll sheet. It is fed into the bank above the gap between the winding roll and the kneading is performed by rotation of the opposing roll and the sheet winding roll.

 The pair of blades also regulates the width.

 According to the second kneading apparatus, the rake face of the blade peels off the roll sheet that rolls around the surface of the sheet winding roll from the surface of the sheet winding roll, and the peeled roll sheet is moved by the rear guide surface. The sheet is folded on the opposite side to the direction of rotation of the roll sheet, and is prayed by the left and right guide surfaces toward the outside of the roll sheet, that is, the end of the roll sheet. The roll sheet peeled off from the surface of the sheet winding roll is overlapped on the opposite side to the rotation direction of the roll sheet, and is folded on the end side of the roll sheet. The paper is fed into the bank located above the gap between the roll and the sheet winding roll, and the kneading is performed by the rotation of the opposing roll and the sheet winding roll.

Each of the pair of blades in the first kneading apparatus and the one blade in the second kneading apparatus can be moved in the axial direction of the sheet winding roll by a driving source to perform optimal kneading. Can be. A third kneading device of the present invention includes a pair of heating rolls, and a falling object returning device that returns a falling object falling from a gap between the heating rolls to an upper portion of the gap between the pair of heating rolls. .

 The fallen object return device of the present invention includes a first support portion facing above a pair of heating rolls, a second support portion facing below the heating roll, and connecting the first support portion and the second support portion, and A third support portion having an elongated hole opened to allow a driven roll shaft to be interposed, a pair of support bases disposed to face each other, and a third support portion pivotally supported between the pair of first support portions. (1) a driven roll, a second driven roll pivotally supported between the pair of second support portions, a driven roll group having at least a third driven roll supported movably along the elongated hole, and the driven roll group And a base driving means for moving the support base back and forth to move the endless belt toward and away from the heating roll.

 The fallen object returning device has a first blade that wipes off the surface of the endless belt passed over the first driven roll, and also has one heating roll in which the endless belt is not circulated near the second driven roll. It may have a configuration including a second blade to be removed.

 When the powdery material falls from the gap between the heating rolls, the third kneading device receives the powdery material by the fallen object return means, transports the powdered material to the upper portion of the gap between the heating rolls, and transfers the transported powdery material to the heating roll. Move to the gap. Therefore, the powdery material falling from the gap between the heating rolls at the beginning of kneading can be used for kneading without waste.

 In addition, when the kneading by the heating roll progresses to some extent, the falling object return means receives the sheet-like material hanging from the gap between the heating rolls and guides the sheet-like material to the gap between the heating rolls. A sheet-like material in a molten or semi-molten state can be easily and reliably fed to a heating roll without manual intervention.

In the fallen object returning device of the present invention, the endless belt is separated from the heating roll by the base driving device as an initial state, and the support base is retracted to a predetermined position. When starting kneading with the heating roll, the base drive Then, the base is advanced toward the heating roll, and the endless belt is brought into contact with the heating roll. In this case, as the third driven roll moves, the endless belt is wound around the peripheral surface of the heating roll by a predetermined length and a predetermined tension is applied to the endless belt. When the heating roll is rotated, the endless belt stretched over the first driven roll, the second driven roll, and the third driven roll rotates and rotates following the rotation of the heating roll. Since the second driven roll is provided at a position facing below the heating roll, the endless belt receives falling objects falling from between the heating rolls. As the endless belt rotates and rotates, the falling objects falling on the endless belt are carried to the peripheral surface of the heating roll together with the rotation of the endless belt. Since the first driven roll is located at the position facing the upper surface of the heating roll, a part of the falling object carried to the peripheral surface of the heating roll adheres to the peripheral surface of the heating roll as it separates from the endless belt. while the force ⁵ carried between the heating roll, the remainder of the falling objects is sent transportable to the first driven roll remain attached to the conveying surface of the endless bell Bok, falls toward the heating roll from the vicinity of the first driven roller .

 In this case, if there is a first blade that scrapes off the surface of the endless belt near the first driven roll, falling objects can be reliably returned from the conveying surface of the endless belt near the first driven roll to the heating roll.

 In the vicinity of the second driven roll, when a second blade that removes deposits on the surface of the other heating roll facing the heating roll on which the endless belt is stretched is attached, it adheres to the other heating roll. Adhering matter can be removed and returned to the endless belt. The roll sheet cutting apparatus of the present invention faces a sheet winding roll formed by forming a kneading roll and rolling the sheet into a roll shape, and is disposed in parallel with the axis of the sheet winding roll and a biasing member. And a locking means for forcibly moving the wire away from the sheet winding roll and then releasing the wire.

 The roll sheet cutting device may have a configuration in which urging members are connected to both ends of the wire.

The roll sheet cutting device may have a configuration in which the wire is formed endlessly via a pair of driven wheels and a drive wheel that can be displaced by an urging member. You.

 In the roll sheet cutting apparatus of the present invention, the wire is locked by the locking means, and the wire is pulled by the locking means so as to be separated from the sheet winding roll. Release the lock. Then, the pulled wire elastically rushes toward the sheet on the sheet winding roll by the urging force of the urging member, and the rushed wire hits the sheet on the sheet winding roll, Cut the sheet instantly. Since this wire is arranged parallel to the axis of the sheet winding roll facing the sheet winding roll, the roll-shaped sheet is cut with a cut parallel to the axis of the sheet winding roll. The cut end of the sheet obtained by removing it from the sheet winding roll is exactly straight.

 In this roll sheet cutting device, the sheet wound on the sheet winding roll is cut by striking the sheet with a wire. In other words, the sheet is not cut with a sharp blade, so the surface of the sheet winding roll is not cut. It does not hurt. The first heating roll cleaning device of the present invention includes: a cleaning roll that cleans a surface of a pair of heating rolls; a cleaning roll displacement unit that slides the cleaning roll on each surface of the pair of heating rolls; And a dirt removing member for removing dirt from the surface.

 A second heating roll cleaning device of the present invention includes a cleaning roll for cleaning the surfaces of a pair of heating rolls, and a cleaning for selectively slidingly contacting the cleaning roll with one of the surfaces of the pair of heating rolls. It is characterized by having a roll displacing means and a dirt removing member for removing dirt on the surface of the cleaning roll.

 The operation of the first and second heating roll cleaning devices configured as described above will be described below.

A kneaded product is manufactured by loading a material such as a synthetic resin between a pair of heating rolls, and driving both heating rolls so as to involve the synthetic resin. After kneading, the synthetic resin in a molten or semi-molten state adheres as a residue to both the heating rolls by the operation of the both heating rolls. The cleaning roll displacing means slides the cleaning roll for cleaning the surface of the two heating rolls. At this time, it is preferable to adjust the rotation directions of the rolls so that they are opposite to each other. However, if the rotation directions of the rolls are the same, it is better to make the rotation speeds different.

 As a result, the cleaning roll rotates and wipes off the synthetic resin adhering to the surfaces of both heating rolls. With the operation of the cleaning roll, the surface of the cleaning roll becomes dirty with the synthetic resin wiped from both the heating rolls. At this time, the dirt removing member removes dirt on the surface of the cleaning roll.

 As a result, the surfaces of both heating rolls can be reliably and automatically cleaned, and the operation rate of both heating rolls can be improved.

 In addition, since cleaning work by hand as in the past is not required, safety can be ensured.

 As the cleaning roll displacement means, a support for supporting the cleaning roll and a hydraulic cylinder for driving the cleaning roll are used.

 The cleaning roll is preferably formed of the same material as the synthetic resin adhering to both heating rolls in a cylindrical shape. The surface hardness of the cleaning roll is preferably lower (softer) than the surface hardness of both heating rolls.

 As a dirt removing member, a scraper that removes dirt on the surface of the cleaning roll is used.

 It is preferable that the two heating rolls and the cleaning roll can have different rotation speeds and rotation directions depending on respective driving sources.

 Further, in the second heating roll cleaning device, the cleaning roll displacement means slides the cleaning roll against one of the surfaces of the two heating rolls.

 As a result, the cleaning roll rotates and wipes off the synthetic resin adhering to the surfaces of both heating rolls. With the operation of the cleaning roll, the surface of the cleaning roll is stained by the synthetic resin wiped from the heating roll. At this time, the dirt removing member removes dirt on the surface of the cleaning roll.

As a result, the cleaning of the surfaces of both heating rolls can be selectively, reliably and automatically performed, and the operation rate of both heating rolls can be improved. The third heating roll cleaning device of the present invention includes: a cleaning member supply unit that performs a transport of a long cross-shaped cleaning member that performs cleaning of a surface of a pair of heating rolls; and a delivery path in the cleaning member supply unit. Cleaning member sliding contact means for slidingly contacting the cleaning member in the middle of the pair with the pair of heating rolls.

 The fourth heating roll cleaning device of the present invention includes: a cleaning member supply unit that performs a transport of a long cross-shaped cleaning member that performs cleaning of surfaces of a pair of heating rolls; and a delivery path in the cleaning member supply unit. And a cleaning member sliding means for selectively sliding the cleaning member in the middle of the cleaning roller to one of the pair of heating rolls. The operation of the third and fourth heating roll cleaning devices configured as described above will be described below.

 In the third heating roll cleaning device, a kneaded product is manufactured by loading a material such as a synthetic resin between a pair of heating rolls, and driving both the heating rolls so as to involve the material. . As a result of the operation of the two heating rolls, the synthetic resin in a molten or semi-molten state adheres to both the heating rolls as dirt.

 The cleaning member sliding contact means slides the cleaning member in the middle of the feeding path in the cleaning member supply means with respect to both heating rolls. As a result, the cleaning member is wiped out of the synthetic resin adhering to the surfaces of both heating rolls while being fed and conveyed. By continuing the feeding of the cleaning member, a clean cleaning member is always in sliding contact with the surfaces of both heating rolls. As a result, the surfaces of both heating rolls can be reliably and automatically cleaned. It is possible to improve the operation rate of both heating rolls. In addition, since cleaning work by hand as in the past is not required, safety can be ensured.

 As the cleaning member supply means, a feeding roll and a winding roll for feeding and winding the cleaning member can be used, or a feeding cassette and a winding roll storing the cleaning member in a folded state can be used. Further, the cleaning member may be transported endlessly.

 As a cleaning member, cloth (woven fabric, knitting, corroded cloth), sheet leather, or artificial leather impregnated with an organic solvent can be used.

As the cleaning member sliding contact means, there are a feed roll that comes into contact with the cleaning member, and a contact / separation mechanism that brings the feed roll into contact with and detaches from both rolls below the two rolls. For example, a combination of a support for supporting the feed roll and a hydraulic cylinder for driving the support can be used.

 In the fourth heating roll cleaning means, the cleaning member sliding contact means slides one of the pair of heating rolls on the cleaning member in the middle of the feeding path in the cleaning member supply means. In this case, a pair of heating rolls may be alternately slid in contact with each other, for example, after one heating roll is slid by a cleaning member for a certain period of time, and then the other heating roll is slid by a cleaning member. The cleaning operation may be simplified by sliding only the large heating roll with a cleaning member. BRIEF DESCRIPTION OF THE FIGURES

 FIG. 1 shows a sheet according to an embodiment of the present invention, in which a sheet inspection sample embedder according to an embodiment of the present invention is incorporated and a formwork according to an embodiment of the present invention is used. It is a schematic explanatory view showing an inspection device.

 FIG. 2 is a partially cutaway schematic explanatory view showing a mold according to one embodiment of the present invention. FIG. 3 is a partially cutaway side view of the formwork shown in FIG.

 FIG. 4 is a schematic explanatory view showing the operation ffl of the sheet inspection sample preparation device and the sheet inspection device.

 FIG. 5 is a schematic explanatory view showing the operation of the sheet inspection sample producing apparatus and the sheet inspection apparatus.

 FIG. 6 is a schematic explanatory view showing the operation of the sheet inspection sample producing apparatus and the sheet inspection apparatus.

 FIG. 7 is a schematic explanatory view showing the operation of the sheet inspection sample producing apparatus and the sheet inspection apparatus.

 FIG. 8 is a schematic block diagram showing a judgment means in the sheet inspection apparatus. FIG. 9 is an explanatory diagram showing the principle of determining the contour of a foreign substance in the determination means.

 FIG. 10 is a schematic explanatory view showing a sheet inspection sample preparation device and a sheet inspection device according to another embodiment of the present invention.

FIG. 11 shows a sheet inspection sample apparatus or another embodiment of the present invention. FIG. 9 is a schematic explanatory view showing another example of the sheet sticking means in the sheet inspection device. FIG. 12 is a schematic explanatory view showing the operation of the sheet sticking means shown in FIG.

 FIG. 13 is a sectional view showing an embodiment of the mold of the present invention.

 FIG. 14 is a sectional view showing another embodiment of the mold of the present invention.

 FIG. 15 is a front view showing an embodiment of the mold of the present invention.

 FIG. 16 is a partially sectional side view showing an embodiment of the form feeding device of the present invention. FIG. 17 is a front view showing a housing in one embodiment of the form feeding device of the present invention.

 FIG. 18 is a schematic explanatory view showing an automatic sheet thickness detecting apparatus of the present invention.

 FIG. 19 is a block diagram showing an outline of data processing in the automatic sheet thickness detecting apparatus of the present invention.

 FIG. 20 is a schematic explanatory view showing a state in which a raw material on powder is stored in the gap between the heating ports.

 FIG. 21 is a schematic block diagram showing a kneading apparatus according to one embodiment of the present invention. FIG. 22 is a flowchart showing a control execution program in the control means in the kneading apparatus according to one embodiment of the present invention.

 FIG. 23 is an explanatory view showing a state in which a bank is formed on the gap between the heating rolls.

 FIG. 24 is an explanatory view showing a state in which the bank formed on the gap between the heating rolls has disappeared, and the sheet has been wound around the one heating roll.

 FIG. 25 is a top view showing a kneading apparatus according to an embodiment of the present invention.

 FIG. 26 is a sectional view taken along line AA in FIG.

 FIG. 27 is a sectional view taken along line BB in FIG.

 FIG. 28 is a partial cross-sectional view for explaining the operation of the present invention.

 FIG. 29 is a partial cross-sectional view for explaining the operation of the present invention.

 FIG. 30 is a partial cross-sectional view for explaining the operation of the present invention.

 FIG. 31 is a top view showing a kneading apparatus according to an embodiment of the present invention.

FIG. 32 is a front view showing a kneading apparatus according to one embodiment of the present invention. FIG. 33 is a schematic explanatory view showing one embodiment of the present invention.

 FIG. 34 is a schematic explanatory view showing another embodiment of the present invention.

 FIG. 35 is an explanatory view showing one embodiment of the fallen object returning device of the present invention.

 FIG. 36 is an explanatory view showing one embodiment of the fallen object returning device of the present invention.

 FIG. 37 is a schematic explanatory view showing a roll sheet cutting device according to an embodiment of the present invention.

 FIG. 38 is a schematic explanatory view showing locking means in the roll sheet cutting device according to one embodiment of the present invention.

 FIG. 39 is a schematic explanatory view showing the operation of the locking means shown in FIG.

 FIG. 40 is a schematic explanatory view showing the operation of the roll sheet cutting device shown in FIG. FIG. 41 is a schematic explanatory view showing the moment when the sheet on the sheet winding roll is cut by the wire 4 using the roll sheet cutting apparatus shown in FIG.

 FIG. 42 is a schematic explanatory view showing a roll sheet cutting device according to another embodiment of the present invention.

 FIG. 43 is a schematic configuration diagram of an apparatus according to an embodiment of the present invention.

 FIG. 44 is a schematic explanatory view showing the operation of the apparatus according to the embodiment of the present invention.

 FIG. 45 is a schematic configuration diagram of a device according to another embodiment of the present invention.

 FIG. 46 is a schematic configuration diagram of an apparatus according to an embodiment of the present invention.

 FIG. 47 is a schematic configuration diagram of an apparatus according to another embodiment of the present invention. Embodiment

 Next, an embodiment of the present invention will be described.

 FIG. 1 shows an embodiment of the present invention in which a sheet inspection sample forming apparatus according to an embodiment of the present invention is incorporated and a formwork according to an embodiment of the present invention is used. It is a schematic explanatory view showing a sheet inspection device.

 As shown in FIG. 1, the sheet inspection apparatus 1 includes a kneading roll group 2, a form feeding unit 3, a sheet sticking unit 4, and a foreign matter detecting unit 5.

The kneading roll group 2 has at least a pair of heating rolls 6 arranged in parallel to face each other. One of the pair of heating rolls 6 winds a sheet. It is also referred to as a sheet winding roll 6a. The gap between the pair of heating rolls 6 can be adjusted so as to increase or decrease the gap, and the temperature of the heating roll 6 can be set freely by appropriate heating means. You can do it. Furthermore, the rotation speed of the heating roll 6 can be freely set by a driving source such as a motor.

 Using this kneading roll group 2, for example, an elastic member such as a thermoplastic resin such as a resin or rubber can be kneaded. At the time of kneading, first, a predetermined amount of the raw material powder is supplied between a pair of heating rolls 6 and compression, heating, and turning back are performed between the heating rolls 6, so that the fully kneaded sheet 7 is wound around the sheet It is formed in a roll shape on the peripheral surface of the roll 6a.

 On the other hand, the form feeding means 3 feeds a plurality of forms 9 stored in a form storage box 8 arranged below the kneading roll group 2 toward the peripheral surface of the sheet winding roll 6a. It has a pressing pin (not shown in FIG. 1). This formwork storage box 8 is provided with a pressing roll 10 for pressing a plurality of formworks 9 against the inner wall of the formwork storage box 8, and is in a standby state in which a predetermined formwork 9 can be sent out by the pressing roll 10. Has become. The bottom surface of the mold 9 is provided with a hole 11 through which a pressing pin is inserted. By pressing a bottom end face of the mold 9 with a pressing pin inserted through the hole 11, a predetermined mold 9 is pushed out of the inside of the mold storage box 8.

Here, as shown in FIGS. 2 and 3, the mold 9 has a substantially rectangular plate shape, and has a substantially rectangular window 9a for dropping light at the center thereof. A cutting edge 9 b having a substantially triangular cross section is formed between the short side of the window 9 a and the short side of the formwork 9 and near the short side of the formwork 9. I have. A straight ridge line serving as a blade of the cutting blade 9b is formed to extend from one end of the form 9 to the other in the short direction. The dimensions of the formwork 9 are such that the length in the width direction is larger than the width of the roll-shaped sheet 7 wound around the sheet winding roll 6a, and the length of the formwork 9 in the longitudinal direction. Is set longer than the circumference of the sheet winding roll 6a. The window 9a in the mold 9 may be a mere opening in which nothing is mounted, or a transparent member such as a glass plate or a transparent acrylic plate may be mounted in the opening. On the side of the formwork 9 where the sheet 7 is to be attached, attach the sheet 7 It is preferable that an appropriate adhesive is applied to ensure this.

 The sheet sticking means 4 includes a vinch roll 12 arranged at a position facing the sheet winding roll 6a and a suitable driving means for enabling the pinch roll 12 to move forward and backward, for example, one end is connected to the vinch roll 12 Mention may be made of a piston consisting of a rod 13 and a cylinder 14 joined together. The driving means for moving the pinch roll 12 forward and backward is not limited to the above-mentioned button, and any means having a function of enabling forward and backward movement can be employed without limitation. The sheet inspection sample preparation device 15 of the present invention includes the kneading roll group 2, a form feeding unit 3, and a sheet sticking unit 4.

 As shown in FIG. 1, the foreign matter detecting means 5 is provided with a suitable transport means for transporting the form 9 to which the sheet 7 is adhered, for example, a form 9 which is carried on a belt conveyor 16. The light irradiation device 17, the imaging device 18 and the judging means 19 (see FIG. 8) for judging a foreign matter in the sheet 7 based on the video signal output from the imaging device 18 are disposed. Have.

 At least two belt conveyors 16 are provided, and a light irradiation device 17 and an imaging device 18 are provided between the first belt conveyor 16a and the second belt conveyor 16b. Is arranged.

 As the light irradiation device 17, any device having various well-known configurations can be used as long as it has a function of irradiating uniform light to the sheet 7 attached to the conveyed formwork 9. It can be adopted as appropriate.

 The imaging device 18 may be any device that can image the sheet 7 irradiated with light and output a video signal of the image. For example, a video camera having a CCD imaging device can be used. The imaging device 18 not only captures an image of the sheet 7 but also prints an identification symbol provided on the surface of the formwork 9, for example, a serial number or bar code printed or stamped on the surface of the formwork 9. It may be configured to output the read and read identification data.

The judging means 19 includes a first memory 19a for storing an image signal output for each pixel as shown in FIG. 8, and a reference image signal obtained when an image of the sheet 7 having no foreign matter is obtained. The second memory 19b to be stored, the image signal read from a predetermined address of the first memory 19a, and the reference image signal read from a predetermined address of the second memory 19b The comparator 19c outputs a signal of, for example, 1 when the two signals do not match within a predetermined error range, and outputs a signal of 0 when the two signals match. The third memory 19d for storing the judgment signal of 0 or 1 output from the unit 19c for each address, and a foreign substance such as a file based on the judgment signal read from the third memory 19d. An arithmetic unit 19e for measuring the number, size, etc. of the number of the brush eyes, gels, and the like, and an output unit 20 for displaying the coefficients and the result of the coefficients, for example, a CRT or a printer.

 Furthermore, the determination means 19 is a fourth memory which writes and reads out the identification data of each mold 9 read by the imaging device 18 and the data relating to the foreign matter measured by the coefficient or the coefficient by the computing unit 19 e. (Not shown). Although not shown in FIG. 1, the form 9 with the sheet 7 that has passed through the sheet winding roll 6 a and the sheet sticking means 4 is sent to the conveying means in the foreign matter detecting means 5. Appropriate transporting means is provided in the sheet inspection apparatus 1.

 Although not shown, for example, the appropriate transport means is lifted while being sandwiched between the sheet winding roll 6a and the pinch roll 12 and attaching the sheet 7 on the sheet winding roll 6a. The chucking device that grips the upper end of the forming form 9 and the chucking device that grips the form 9 with the sheet 7 completely separated from the sheet winding roll 6a and the pinch roll 12 are sent to the transport means. A form moving device having a chuck moving device, or a sheet moving device which is sandwiched between the sheet winding roll 6a and the pinch roll 12 and sticks up the sheet 上 の on the sheet winding roll 6a and lifts up. A form moving device or the like having a guide means for guiding the formed form 9 to the transport means as it is can be mentioned.

 Next, the operation of the sheet inspection apparatus 1 having the above configuration will be described in detail.

 In the initial state, the sheet winding roll 6a in the kneading roll group 2 is rolled with an elastic material such as a thermoplastic resin or rubber in a roll shape. The form 9 is pressed against one wall in the form storage box 8 by the pressing roll 10. Furthermore, the pinch roll 12 is retracted so that the gap between the sheet winding roll 6a and the pinch roll 12 is sufficiently large and open.

In this state, among the plurality of formwork 9, the first one that is pressed against the wall in the formwork storage box 8. The bottom end face of the end frame 9 is pushed up by a pressing pin (not shown). Due to the pressing by the pressing pin, as shown in FIG. 4, the leading end of the mold 9, that is, the end having the cutting blade 9 b, comes first, and the cutting blade 9 b is moved by the sheet winding roll 6 a. The leading end of the form 9 arrives between the sheet winding roll 6a and the vinch roll 12 so as to face the side.

 Then, as shown in FIG. 5, the driving means causes the vinch roll 12 to advance toward the sheet winding roll 6a, and the form 9 moves the sheet 7 and the pinch roll 12 onto the sheet winding roll 6a. Sandwiched between. As shown in FIG. 3, a cutting blade 9 b is formed on the surface of the leading end of the form 9 toward the sheet winding roll 6 a, and the cutting blade 9 b is pressed by the pinch roll 12. Cuts the sheet 7 on the sheet winding roll 6a.

 After the cutting, the form 9 is still fed out by the form feeding means 3, so as shown in FIG. 6, when the form 9 passes over the peripheral surface of the sheet winding roll 6a. Then, the sheet 7 is adhered to the surface of the mold 9 and transferred while the sheet 7 on the sheet winding roll 6a is peeled off.

 When the form 9 is sent out and completely escapes from the sheet winding roll 6a, as shown in FIG. 7, the sheet winding roll 6a is attached to the surface of the form 9 where the cutting blade 9b is provided. Finish attaching the separated sheet 7.

 The sheet 7 attached to the formwork 9 is a sheet inspection sample 21. That is, the sheet inspection sample 21 is automatically manufactured by the kneading roll group 2, the form feeding means 3, and the sheet attaching means 4.

 The formwork 9 with the sheet 7, that is, the sheet inspection sample 21, is placed on a belt conveyor 16 a at the front stage by a not-shown feeding means as shown in FIG. The sheet inspection sample 21 is conveyed to the first belt conveyor 16a and reaches the second belt conveyor 16b. Then, the sheet irradiating device 17 irradiates the sheet inspection sample 21 hung between the first belt conveyor 16a and the second belt conveyor 16b with light.

 The image pickup device 18 picks up an image of the sheet 7 illuminated with light, and outputs the video signal to the determination means 19.

In the determination means 19, as shown in FIG. In addition to reading out the reference image pickup signal, which is stored in the memory 19 a for each pixel and is stored in the second memory 19 b and obtained when the image of the sheet 7 free from foreign matter is obtained, The imaging signal stored in the first memory 19a is read out for each pixel, and the comparator 19c reads out the imaging signal read from a predetermined address of the first memory 19a and the second memory 19b. A comparison is made with a reference image signal read from a predetermined address, and as a result of the comparison, if the two signals do not match within a predetermined error range, for example, a signal of 1 is output to the third memory 19 d and they match. Sometimes, a signal of 0 is output to the third memory 19 d. Based on the 0 or 1 signal read from the third memory 19d, the arithmetic unit 19e selects data whose adjacent pixel address is different from that of the pixel address, as shown in Fig. 9. By doing so, the contour of the foreign matter is determined. The number of foreign objects is determined by the determined number of contours, and the determination means 19 counts them. In addition, the size of the foreign object can be calculated by counting the major axis and the minor axis in the contour. The result of such counting or counting is output to the output means 20 and displayed. In the determination means 19, an identification symbol attached to each mold 9 can be further written and read out with identification data read and output by the imaging device 18 and data obtained by counting or counting the foreign matter. 4 may be stored in the memory. With such a memory, it is possible to read out the accumulated data relating to foreign substances by inputting the identification data from an input means such as a keyboard as needed.

 According to the sheet inspection apparatus 1 described in detail above, the sheet 7 can be inspected for the presence or absence of foreign matters in the sheet 7 in a fully automatic manner. According to the sheet inspection sample producing apparatus 15, a sheet inspection sample 21 suitable for the inspection of the sheet 7 can be easily and fully produced automatically. According to the formwork 9, the sheet 7 wound around the sheet winding roll 6a is cut, and the cut and separated sheet 7 is attached to the surface, and the sheet inspection sample 21 is used as it is. can do.

 Although the present invention has been described in detail above, the present invention is not limited to the above embodiment, and the design can be appropriately changed within the scope of the present invention.

In the above-described embodiment, the form feeding means is provided so that the form is sent vertically, but as shown in FIG. 10, the form 9 is sent obliquely from the form sending means. It may be. In the above embodiment, the sheet sticking means has a vint roll and an appropriate driving means for moving the vint roll forward and backward, but as shown in FIG. 11, the sheet winding roll 16 a It is also possible to adopt a configuration having an opposing roll 16b disposed in parallel to and opposed to each other. The opposing roll 16 b can be moved toward and away from the sheet winding roll 6 a by an appropriate first urging member 22. On the other hand, the sheet winding roll 6 a is also moved to the second urging member 22. By means of 23, it is possible to approach and separate from the heating roll 6b.

 The formwork 9 is sent out toward the gap between the sheet winding roll 6a and the heating roll 6b. The leading end of the formwork 9 reaching the gap is immersed in the gap so as to push open the sheet winding roll 6a and the heating roll 6b, and the leading end of the formwork 9 to be immersed is the first urging member 2 Since it is tightened by the second urging member 23 and the second urging member 23, the cutting blade 9b provided at the leading end forcibly cuts the sheet 7 on the sheet winding roll 6a.

 As shown in FIG. 12, the form 9 from which the sheet 7 has been cut is still sent out by form sending means (not shown). As the form 9 rises, the surface of the form 9 The cut sheet 7 is separated from the surface of the sheet winding roll 6a and adhered and transferred. When the mold 9 is completely removed from the gap between the heating roll 6b and the sheet winding roll 6a, a sheet inspection sample obtained by attaching the sheet 7 to the mold 9 is obtained. This sheet inspection sample is transported to a belt conveyor in the same manner as shown in FIG. 1, and the presence or absence of foreign matter in the sheet is inspected by an imaging device.

 Further, as another preferable example of the mold of the present invention, the mold shown in FIGS. 13 to 15 can be exemplified.

 This formwork 30, which is another preferred example of the formwork of the present invention, has a rectangular front face portion 31 and a rectangular window portion 32 opening to the front face portion 31. At the edge of the portion 32, a taper portion 33, which is an inclined surface, is formed as shown in FIG. In addition, the formwork 30 as another embodiment has a curved portion 34 which is a curved surface curved at an appropriate curvature on the edge of the window portion 32 instead of the tapered portion 33.

When a formwork 30 having a taper section 33 and / or a rounded section 34 at the edge of the window section 32 as shown in FIGS. 13 to 15 is adopted, the sheet winding roll and the heating roll which is the opposite roll are used. Just pass this formwork 30 through the gap between The resin sheet or the resin film wound around the wrapping roll is separated from the surface of the wrapping roll, and is adhered to the front part 31 of the formwork 30 with an appropriate tension.

 Another example of the form feeding device of the present invention, which is suitably used for the sheet inspecting sample producing device and the sheet inspecting device of the present invention, is shown below.

 FIG. 16 is a partial cross-sectional side view of the form feeding device, and FIG. 17 is a front view showing a housing.

 As shown in FIGS. 16 and 17, the base 40, the housing 41, the pressing member 42, the lower end pressing member 43, the pickup means 44, and the guide means 45 are formed. Have. The base 40 includes a pair of support plates 48 opposed to each other so as to support the rotation axes of the sheet winding roll 46 and the opposing roll 47, and an upper portion of the pair of support plates 48. And a first opening for allowing the formwork 30 to pass through.

49 provided with a top plate 50 provided with 49.

 The housing 41 is disposed on a top plate 50 of the base 40. The housing 41 includes a front plate 51 corresponding to the front portion in claim 11, a rear plate 52 facing the front plate 51, a bottom plate 53, a side plate 54, and a ceiling plate (see FIG. (Not shown)). However, one of the pair of side plates 54 is formed so as to be openable and closable, so that the formwork 30 can be stored inside the housing 41. As is well shown in FIG. 17, a substantially rectangular opening is provided above the front plate 51 of the housing 41 (hereinafter, this opening is referred to as an upper opening 55). An opening is provided below the metaplate 51 in which the lower end is cut off (hereinafter, this opening is referred to as a lower opening 56). An opening (hereinafter, this opening is referred to as a bottom opening 57) that is continuous with the lower opening 56 in the front plate 51 is provided on the bottom surface of the housing 41. The length of the bottom opening 57 in the direction from the front plate 51 to the rear plate 52 is determined by the lower end pressing member 4 when a lower end pressing member 43 described later enters the bottom opening 57. It is sufficient that the distance between 3 and front plate 51 is adjusted to at least exceed the thickness of formwork 30.

 As shown in FIG. 16, the back pressure member 42 is a back plate of the housing 41.

Two horizontal pressing rods 58 penetrating through 52, a pressing plate 59 connected to the tip of the pressing rod 58 and standing vertically in the housing 41, Mouth 5 8 (Not shown) for moving the vehicle forward and backward.

 As shown in FIG. 16, the lower end pressing member 43 moves forward and backward by the air pressure of a first air cylinder 60 attached to the bottom surface of the housing 41 and the first air cylinder 160. A first rod 61 capable of reversing, and coupled to the tip of the first rod 61 and extending above the bottom surface of the housing 41, the upper end of which is the lower opening 56 And a vertical plate 62 adjusted so as to be located below the upper edge of.

 The pick-up means 44 is raised and lowered by the second air cylinder 63 attached near the upper opening 55 in the front plate 51 of the housing 41, and the air pressure of the second air cylinder 63. A second support rod 65 connected to a tip of the second rod 64, and a second support rod 65 attached to the support base 65. 1 and a first suction cup 66 corresponding to the first suction member. The highest position of the first suction cup 66 is set near the upper end of the upper opening 55 by driving the second air cylinder 63 and the second rod 64. The mounting position of the first suction cup 66 on the support plate 48 is set so that the lowest position is near the lower end of the upper opening 55 by driving the second air cylinder 63 and the second rod 64. The length of the second rod 64 and the stroke of the second rod 64 that moves up and down by the second air cylinder 63 are adjusted. The first suction cup 66 can suck air in the suction cup by gas suction means (not shown). Therefore, by pressing the first suction cup 66 against a flat plate, for example, and sucking the air in the first suction cup 66 by the gas suction means, the first suction cup 66 can be strongly adsorbed to the flat plate. You can do it.

As shown in FIG. 16, the guide means 45 is vertically erected on the upper surface of the base 40 and in front of the front plate 51 of the housing 41 with the first opening 49 interposed therebetween. The support base 67, and a third air cylinder (not shown in the drawings) mounted on a surface of the support base 67 facing the front plate 51, for example, are vertically installed. A third rod (not shown) that moves up and down by the air pressure of the cylinder and a first up and down movement mechanism including a first base 68 provided at the third port; The fourth air cylinder 69 attached to the base 68, and the fourth air cylinder 69 moves forward and backward toward the front plate 51 by the fourth air cylinder 69. A second forward / reverse mechanism including a rod 70, a vertically long second base 71 provided at the end of the fourth rod 70, and the front plate 51 of the second base 71. And a second suction cup 72 provided near the lower end of the second base 71. The second suction cup 72 can suck air in the suction cup by gas suction means (not shown). Therefore, by pressing the second suction cup 72 against a flat plate, for example, and sucking the air in the second suction cup 72 by the gas suction means, the second suction cup 72 is strongly adsorbed to the flat plate. You can do it.

 Next, the operation of the form feeding device having the above configuration will be described.

 First, a plurality of molds 30 are housed in the housing 41, and the plurality of molds 30 are pressed against the back surface of the front plate 51 by the pressure plate 59. Also, as an initial state, a position slightly above the lower end side of the upper opening 55 and near the surface of the foremost mold 30 among the molds 30 housed in the housing 41 is provided. A position such as the second rod 64 is set so that the first suction cup 66 is located. In the initial state, the third port is positioned at the highest position, and the fourth rod 70 is set to be retracted into the fourth air cylinder 69.

 Next, the inside of the first suction cup 66 is depressurized by operating the gas suction means in the first suction cup 66, and the first suction cup 66 is strongly adsorbed on the surface of the foremost mold 30 by this decompression.

 Thereafter, the pressing rod 58 is retracted, so that the tightening of the formwork 30 by the pressing plate 59 is loosened. When the tightening of the back surface of the front plate 51 of the formwork 30 and the pressing plate 59 is loosened, the second air cylinder 63 operates and the second rod 64 rises. As the second rod 64 rises, the mold 30 adsorbed on the first suction cup 66 is lifted upward by the rising stroke of the second rod 64.

 When the foremost form 30 is lifted upward by the first suction cup 66, the first air cylinder 160 operates and the first rod 61 retreats. Then, the plurality of molds 30 subsequent to the second sheet are pushed back toward the pressing plate 59 by the vertical plate, and finally the state is sandwiched between the vertical plate and the pressing plate 59. In addition, the form 30 can pass through the gap between the vertical plate 62 and the front plate 51 at the bottom opening 57.

The fourth air cylinder 69 operates to move the fourth rod 70 forward, which causes The second base 71 advances toward the front plate 51, and finally the second suction cup 72 contacts the lower surface of the formwork 30. The gas suction means connected to the second suction cup 72 operates to suck the gas in the second suction cup 72. When the gas in the second suction cup 72 is sucked, the second suction cup 72 strongly adheres to the foremost mold 30.

 When the suction to the mold 30 by the second suction cup 72 is completed, the operation of the gas suction means in the first suction cup 66 is stopped, and the gas is returned into the first suction cup 66, whereby The formwork 30 is released from suction by the first suction cup 66.

 Thereafter, the third air cylinder is operated to lower the first base 68, and the fourth base cylinder 69 connected to the first base 68 is moved by the lowering of the first base 68. The fourth rod 70 of the fourth air cylinder 69 and the second base 71 coupled to the fourth rod 70 are lowered. By the lowering of the second base 71, the foremost formwork 30 adsorbed by the second suction cup 72 lowers, and goes downward from the inside of the housing 41 through the bottom opening 57.

 Then, when the first base 68 is positioned at the lowest position by the operation of the third air cylinder 1, the lower end of the formwork 30 sucked and held by the second suction cup 72 of the second base 71, The sheet faces the gap between the winding roll 46 and the opposing roll 47.

 When the operation of the gas suction means of the second suction cup 72 is stopped, the formwork 30 is released from the suction holding by the second suction cup 72, and the formwork 30 is moved by its own weight to the sheet winding roll 46 and the opposing roll. Move to the gap with 4 7.

 After the foremost form 30 is guided into the gap between the sheet winding roll 46 and the opposing roll 47, the first air cylinder 60 operates to move the first rod 61 forward and the pressing plate 5 9 returns to its original position in the lower opening 56. With the forward movement of the first rod 61 or after the forward movement of the first rod 61, the pressing port 58 is advanced to move the plurality of molds 30 to the back of the front plate 51. Press on.

 Also, after the formwork 30 is guided into the gap between the sheet winding roll 46 and the opposing roll 47, the third air cylinder is operated to raise the third rod and return to the initial state. .

 As described above, the formwork 30 in the housing 41 can be supplied to the gap between the sheet winding roll and the opposing roll.

ADVANTAGE OF THE INVENTION According to the sheet inspection apparatus of this invention, it is fully automatic Foreign substances in the sheet can be inspected. Moreover, since the inspection of the foreign substance is not based on visual observation by a human, the inspection result is accurate and there is no inconvenience that a large error is caused by a human as in the past.

 The formwork of the present invention is convenient for preparing a sheet inspection sample used in the sheet inspection apparatus of the present invention. In particular, since the formwork of the present invention has a cutting blade, the sheet on the sheet winding roll is cut, and the cut sheet is immediately adhered to easily manufacture a sheet inspection sample. be able to.

 The use of the sheet inspection sample preparation device of the present invention means that a sheet inspection sample applied to the sheet inspection device of the present invention can be easily and completely manufactured without any manual labor. As shown in FIG. 18, the automatic sheet thickness detecting device 101 includes a guide frame 104 composed of a pair of vertical frames 102 and a pair of horizontal frames 103, A rod-shaped support member 106 which penetrates a pair of horizontal frames 103 and has a stopper 105 at a rear end thereof, and a drive source for moving the support member 106 forward and backward (not shown) ), A base 107 coupled to the distal end of the support rest 106 and arranged in parallel with the horizontal frame 103, provided on the base 107 and at a predetermined interval. The first gauge 1 08a and the second gauge 1 08b arranged at, and the measuring element 1 0 9 respectively coupled to the first gauge 1 08a and the second gauge 1 08b are provided. It becomes.

 One of the two measuring elements 109 is an end of the sheet wound around the sheet winding roll 110 or the end of the sheet winding roll 110. The remaining one contact point 109 touches the center of the sheet wound around the sheet winding roll 110 or the center of the sheet winding roll 110 so as to contact the vicinity of the sheet. So that it is positioned. If the two probes 109 are provided in such a positional relationship, the thickness of the sheet edge and the thickness of the center can be measured simultaneously, and the uniformity of the sheet thickness can be confirmed. can do.

Each of the first gauge 108 a and the second gauge 108 b detects a displacement of the probe 109 when the probe 109 abuts on an object, and detects the detected displacement. Various known devices, for example, a micrometer, can be used as long as they can output as an electric signal. An automatic sheet thickness detecting apparatus 101 of the present invention is a heating and kneading roll having at least at least a sheet winding roll 110 and an opposing roll 111 arranged so that an axis thereof is parallel to the sheet winding roll 110 and opposed to each other. The support body 106 is arranged so as to be able to move forward and backward toward the sheet winding roll 110.

 As shown in FIG. 19, the sheet thickness automatic detection device 101 further includes a calculation control unit 112. The calculation control unit 112 includes the pair of gauges, that is, the first gauge. The thickness of the sheet is calculated based on the data output from 108 a and the second gauge 108 b. That is, in a state where the sheet is not wound around the sheet winding roll 110, first, the measuring element 109 is brought into contact with the surface of the sheet winding roll 110, and the measuring element 110 Is detected by the first gage 108a and the second gage 108b, and the data output from the first gage 108a and the second gage 108b are calculated and controlled as initial data. The initial data is output to the memory 111 and temporarily stored in the memory 113. Next, a pair of tracing styluses 109 is brought into contact with the sheet wound around the sheet winding roll 110, whereby the first gauge 108 a and the second gauge 108 b output. The output data is output to the arithmetic and control unit 112 as measurement data. The arithmetic and control unit 112 subtracts the initial data in the memory from the input measurement data to obtain the thickness of the sheet measured by the first gauge 108a and the second gauge 108b. The thickness of the measured sheet is calculated, and the calculated value is output to the output display section 114.

 The operation of the automatic sheet thickness detecting device 101 will be described.

As an initial state, in the automatic sheet thickness detecting apparatus 101, the base 107 is retracted to the vicinity of the horizontal frame 103 in the guide frame 104. When the sheet winding roll 110 is heated and reaches the stage of kneading the resin, the base 107 is advanced toward the sheet winding roll 110 by a drive source (not shown), and a pair of measuring elements 110 Is brought into contact with the surface of the sheet winding roll 110. When a pair of the measuring elements 109 comes in contact with the surface of the sheet winding roll 110, the displacement of the measuring element 109 from the first gauge 108a and the second gauge 108b is reduced. It detects and outputs an electric signal with the amount of movement and displacement as initial data to the arithmetic and control unit 112. The arithmetic control unit 112 transfers the initial data to the memory and temporarily stores it. When the measurement with the stylus 109 is completed, the base 107 moves backward and the stylus 1109 moves away from the sheet winding roll 110, and the base 107 returns to the original initial state.

 Next, a predetermined amount of resin powder is supplied to the gap between the sheet winding roll 110 and the opposing roll, and the kneading roll is rotated to knead the resin powder, and the surface of the sheet winding roll 110 is coated with the resin powder. Let the birds form. After a lapse of a predetermined time, the base 107 is advanced to bring the pair of tracing stylus 109 into contact with the sheet on the sheet winding roll 110. When the contact point of the contact point 109 comes in contact with the sheet, the amount of movement and displacement of the contact point 109 from the 1st gauge 1108a and the 2nd gauge 1108b is used as measurement data. Output to the unit 1 1 and 2. When the measurement data is output to the arithmetic and control unit 112, the base 107 retreats and returns to the initial state.

 The arithmetic control unit 112 calculates the sheet thickness by subtracting the initial data read from the memory 113 from the input measurement data, and displays the sheet thickness on the output display unit 114. indicate.

 If the thickness of the sheet measured with the first gauge 108 a and the thickness of the sheet measured with the second gauge 108 greatly differ from each other beyond the error range, the sheet winding roll Fine-tune the gap between 110 and the opposing roll 111. Then, the thickness of the sheet on the sheet winding roll 110 is measured again by the same operation as the previous operation. As a result of the measurement, when the thickness of the sheet measured by the first gauge 108a and the thickness of the sheet measured by the second gauge 108b match within an error range, the sheet winding roll Remove the sheet from 110.

 As described in detail above, according to the present invention, it is possible to automatically measure the thickness of the sheet on the sheet winding roll, and therefore, the operator is injured by a burn due to contact with the heating roll and fingers between the rolls. It is possible to provide a safe sheet thickness automatic detection device capable of completely eliminating personal injury such as pinching.

 In addition, since the sheet thickness automatic detection device measures the sheet thickness without manual operation, there is no error in the measurement data due to the operator, and the sheet thickness can be accurately measured.

This automatic sheet thickness detection device measures the thickness of the sheet on the sheet winding roll at least at two points. By combining this automatic sheet thickness detection device with the kneading roll, the sheet thickness can be reduced. Fine adjustment of the gap between kneading rolls for each measurement A sheet having a uniform thickness can be easily manufactured. FIG. 20 is a sectional view showing a pair of heating rolls in the kneading apparatus according to one embodiment of the present invention.

 As shown in FIG. 20, the pair of heating rolls 201 are arranged so that their roll axes are parallel to each other and face each other. This pair of heating rolls 201 can adjust the mutual distance L between the pair of heating rolls 201 by a driving device (not shown), and each heating roll 201 is heated to a predetermined temperature by heating means (not shown). Heating can be performed, and each of the pair of heating rolls 201 can be rotated at a unique rotation speed and rotation direction by a drive source (not shown).

 The pair of heating rolls 201 is provided with a temperature sensor for detecting a heated temperature, and a rotation state sensor for detecting the rotating direction and the rotation speed of the heating roll 201 is provided. A position sensor for detecting the gap between the rolls 201 is installed, and a stored substance stored in the gap between the pair of heating rolls 201, for example, a powdery material stored in a mount state or a semi-molten or molten state A bank sensor is installed to detect the bank that has changed.

 Examples of the temperature sensor include a thermocouple, an infrared radiation thermometer, and the like. Examples of the rotation state sensor include a tachogenerator rotary encoder and the like for detecting the rotation speed of the heating roll 201. A rotary encoder or the like can be used to detect the rotation direction of the heating roll 201, a laser displacement sensor or an ultrasonic displacement sensor can be used as a position sensor, and a bank sensor can be used as a bank sensor. A non-contact thermometer, for example, an infrared radiation thermometer, or a combination of a light emitting means for projecting light in the roll axis direction in the vicinity of a gap between a pair of rolls and a light receiving sensor for receiving the light can be used.

The kneading apparatus according to this embodiment includes the pair of heating rolls 201, as shown in FIG. 21, the temperature sensor 203, the rotation state sensor 204, and the position sensor 102. 05, a non-contact sensor 206, a heating means 200 for heating the heating roll 201, a driving device 208 for determining a gap between the heating roll 201, and a heating roll 210. A drive source 209 for determining a rotation speed and a rotation direction; A detection signal is inputted from the sensor 1 and the heating means 207, the driving device 208 and the driving source 209 are controlled in accordance with the state and amount of the stored material existing in the gap between the pair of heating rolls 201. Control means 110 to perform the control. Although not shown in FIG. 21, the kneading apparatus has input means, such as a keyboard, for inputting various data and control commands to the control means 110. I have.

 Next, the operation of this embodiment will be described.

 As shown in Step 1 in FIG. 22, a heating control signal is output from the control means 110 to the heating means 207 according to the heating temperature preliminarily input by the input means, and the heating control signal is given by the heating means 207. The heating roll 201 is heated to the temperature of. The heating temperature varies depending on the type of the material, and is usually set to a temperature about 10 ° C higher than the processing temperature of such resins when the material is vinyl chloride resin or silicone resin. You. This set temperature is input to the control means 110 by the keyboard.

 As shown in Step 2 in FIG. 22, the control means 110 outputs a gap control signal to the driving device 208 so that the distance between the pair of heating rolls 201 becomes a predetermined size. Then, the relative position of the heating roll 201 is adjusted. In the initial state, the distance L between the pair of heating rolls 201 is usually about 0.2 mm.

 As shown in FIG. 20, a predetermined amount of the powdery material 11 is stored on the space between the pair of heating rolls 201 adjusted to such a distance L (see FIG. 20). Since the interval L is generated between the pair of heating rolls 201 as described above, when the powdered material is supplied between the heating rolls 201, the powdered material 11 leaks from the interval L. However, the amount of such leakage is small, and usually, the powdery material 21 is almost immediately formed because the material particles form a bridge at the distance L between the pair of heating rolls 201. Fall through the interval L of 1 stops.

As shown in Step 3 in FIG. 22, by outputting a drive control signal from the control means 110 to the drive source 209, each of the pair of heating rolls 201 is rotated at a predetermined rotation speed in a predetermined rotation direction. Rotate with. In this case, although it depends on the type of the material, generally speaking, the heating rolls 2 1 1 are so arranged that the mounting powdery materials 2 1 1 are fused together by the heating rolls 2 1 1. The rotation speed and rotation direction of Get stuck. To give an example, for a certain material, for example, the driving source 20 is arranged so that the rotation of the pair of heating rolls 201 is opposite to each other and the pair of heating rolls 201 is rotated at a low rotation speed. 9 is controlled. In some cases, the rotation speeds of the pair of heating rolls 201 are different from each other so that the rotation directions of the pair of heating rolls 201 are the same, and the rotation speeds of the pair of heating rolls 201 are different from each other. The degree is controlled to be low. In short, a large shearing force and the heating energy of the heating roll 201 are applied to the powdered material 211 existing on the pair of heating rolls 201, and the particles of the powdered material 211 are mutually fused. The rotation speed and the rotation direction of the heating roll 201 such as to be worn are determined by the control means 110. Then, the heating temperature by the above-mentioned heating roll 201 is maintained, and the kneading is continued while the rotation direction and the rotation speed of the pair of heating rolls 201 are maintained. Then, as the kneading continues, and the particles of the powdery material 211 fuse together, a bank is formed on the heating roll 201 and the volume of the bank becomes almost constant, or Since the torque applied to the heating roll 201 decreases, a detection signal is sent to the control means 110 from the bank sensor that detects such a decrease in the volume of the bank or the torque applied to the heating port 201. Is output.

 If the detection signal has not been output by that time, the control means 110 determines that the bank has not been formed, and returns to Step l to return to Step l, as shown in Step 3, for the heating roll 201. Adjust the interval L, or adjust the heating temperature of the heating roll 201, and adjust the rotation speed and rotation direction of the heating roll 201.

 In FIG. 22, the temperature adjustment of the heating roll 201 is shown as Step l, the interval adjustment of the heating roll 201 is shown as Step 2, and the rotation of the heating roll 201 is shown as Step 3. The adjustment of the speed and the rotation direction is shown, and it is shown that the steps 1 to 3 are executed. However, the steps 1 to 3 are not limited to the steps shown in FIG. 22. . That is, Steps 1 to 3 may be performed simultaneously, or may be performed in the reverse order.

If a bank of material is formed at the interval L between the heating rolls 201, the control means 110 outputs a temperature control signal to the heating means 207 to change the temperature to a predetermined temperature (Step 5), and heats the sheet. The distance L between the rolls 201 is gradually changed (Step 6), and the heating roll The rotation speed and rotation direction of 201 are kept constant (Step 7).

 Normally, the heating temperature of the heating roll 201 at this time is the processing temperature of the material, and the rotating direction of the heating roll 201 is opposite to the direction in which the bank is wound around the interval L of the heating roll 201. Adjusted to The rotation speed of the heating roll 201 is adjusted to an optimum speed according to the type of the material.

 As shown in FIG. 23 and FIG. 24, the kneading of the bank 2 12 by the heating roll 201 is performed, and as the distance L between the heating rolls 201 is gradually increased, one of the heating rolls 201 is kneaded. Then, the sheet 2 13 is turned into a roll, and the thickness of the sheet 2 13 turned into a roll is increased.

 In this state, steady operation is performed by the heating roll 201 for a certain period of time to knead the material (Step 8). The bank sensor 206 monitors the bank 211 located on the interval between the heating rolls 201 (Step 9), and detects that the bank 211 exists on the heating roll 201. The bank sensor 206 outputs the detection signal to the control means 110, and the control signal receives the detection signal, and the heating means 206 and the driving device 2 receive the detection signal so that the heating roll 201 operates normally. 08 and the drive source 209 are controlled. When this steady operation is continued for a certain period of time, the banks 2 12 on the interval between the heating rolls 201 disappear as shown in FIG.

 When the bank sensor 206 that has detected the disappearance of the bank 211 outputs a detection signal to the control means 110, the control means 110 outputs a drive control signal to the drive device 208 to generate a pair of heating signals. The driving device 208 is driven so as to narrow the interval L between the rolls 201 (Step 10). When the distance L between the heating rolls 201 is reduced, the thickness of the roll-shaped sheet 213 that has been wound on one of the heating rolls 201 is reduced, and the gap between the heating rolls 201 is banked. 2 1 2 begins to form.

 The bank sensor 206 monitors the bank 212 formed between the heating rolls 201. When the bank sensor 206 detects that a certain amount of the bank 212 is not formed, the detection is performed. A signal is output to the control means 110, and the control means 110 performs fine adjustment so as to further reduce the interval L between the heating rolls 201 (Step 11 and Step 10).

When the bank sensor 206 detects that a predetermined amount of the bank 212 has been formed on the heating roll 201, a detection signal output from the bank sensor 206 is input. The control means 110 controls the heating means 207, the driving device 208 and the driving source 209 so as to maintain the heating roll 201 at a constant rotation speed and a constant heating temperature and perform a steady operation. Control (Step l 2).

 On the other hand, the control means 110 counts the number of times of the detection signal of the formation of the bank 211 output from the bank sensor 206, and if it is determined that the number of times of the detection has not reached the number previously input, the control means 110 Step 10 outputs control signals to the heating means 207, the driving device 208 and the driving source 209, and performs Steps 5 to 7 so that the bank 212 existing between the heat-sensitive rolls disappears. repeat.

 As described above, the control means 110 inputs the various detection signals output from the temperature sensor, the rotation state sensor 1, the position sensor, and the bank sensor 206, and according to a predetermined program, the heating roll 2 The formation and disappearance of the bank 2 12 are repeated a predetermined number of times on the interval of 01.

 After the formation and disappearance of the bank 2 12 a predetermined number of times are repeated, the rotation and heating of the heating roll 201 are stopped to end the kneading.

 As described above, in this embodiment, the pair of heating rolls 201 are automatically controlled by the control means 110 to knead the powdery material 211 stored in the form of a mount on the heating roll 201. In the molten or semi-molten state, kneading is performed, and the formation and disappearance of the heating rolls 201 in the form of the banks 212 are repeated a predetermined number of times, so that the materials can be kneaded extremely uniformly. it can.

 According to the automatic kneading apparatus of the present invention, based on various kinds of detection signals output from the temperature sensor, the rotation state sensor, the position sensor, and the bank sensor, the control unit controls the distance between the heating unit and the heating roll. The driving device for determining the rotation direction and the rotation speed of the heating roll is controlled to an optimal state according to the state of the bank formed on the heating roll, and the formation and disappearance of the bank on the heating roll are controlled. Since it is repeated a predetermined number of times, kneading can be performed uniformly. FIG. 25 is a schematic explanatory view showing a first kneading apparatus according to one embodiment of the present invention.

As shown in FIG. 25, the kneading device 301 has a sheet winding roll 302 opposed to the sheet winding roll 302, and has its axis parallel to each other. It has an opposing roll 303 arranged with a predetermined gap, and a pair of blades 304 and 304.

 The pair of blades 304 has a shape having a mirror image relationship with respect to the other blade 304, and is appropriately disposed on the upper surface of the sheet winding roll 302 along the axis of the sheet winding roll 302 in a state where the blades 304 face each other. It is arranged to be movable by a moving source such as a motor. In an initial state, the pair of blades 304, 304 is located outside the width of the roll sheet 300 and is located on the upper peripheral surface of the sheet winding roll 302.

 As shown in FIGS. 26 and 27, the blades 304 and 304 are provided with a rake surface 304 b starting from an edge 304 a in contact with the peripheral surface of the sheet winding roll 302, and as shown in FIGS. As described above, a left and right guide surface 304c is provided to guide the roll sheet 305 continuous with the rake face 304b and to be peeled off by the rake face 304b so as to be folded toward the center line of the roll sheet 305. As shown in FIG. 27, the roll sheet 305 which is continuous with the rake face 304 b and which is peeled off by the rake face 304 b is guided so as to be folded back to the opposite side in the traveling direction of the roll sheet 305. A rear guideway 4 d is provided.

As shown in FIG. 25, the edges 304a of the rake faces 304b of the blades 304, 304 are formed obliquely at a predetermined angle 0 with respect to the circumference around the axis of the sheet winding roll 302. ing. Since the edge 304a is formed obliquely at the angle 0, when the pair of blades 304, 304 are moved closer to each other, the roll sheet 300 formed up to that time is cut and cut. The edge of the roll sheet 305 can be scooped. It is desirable that the angle between the rake face 304b of the blades 304 and 304 and the peripheral surface of the sheet winding roll 302 be as sharp as possible. Further, as shown in FIG. 26, the left and right guide surfaces 304c are formed continuously from the rake face 304b, and the end of the mouth-lipped sheet 305 that has been scooped from the sheet winding roll 302 is a roll sheet. If it is bent so that it can be turned toward the center of the sheet 300, that is, toward the center of the width of the roll sheet 304 on the sheet winding roll 302, there is no limitation on the curvature and the like. . In this case, the term “turning back toward the center of the roll sheet 305” refers to the roll sheet that has been scooped. It does not only mean that the end of the roll sheet 305 is folded exactly so as to reach the center of the width of the mouth sheet 305, but the inside of the roll sheet 305 is in the width center direction. In a broad sense, the end of the roll sheet 105 is folded inward. As shown in Fig. 27, the rear guide surface 304d is formed continuously from the rake face 304b, and the end of the roll sheet 304 scraped off from the sheet winding roll 302. There is no particular limitation on the curvature and the like as long as it is formed so that it can be turned back to the side opposite to the rotation direction of the roll sheet 300.

 The operation of the kneading apparatus 301 having the above configuration will be described.

 As an initial state, the pair of blades 304 and 304 are spaced apart from each other by a width wider than the width of the roll sheet 300 when the roll sheet 300 is wound on the sheet winding roll 302. I'm waiting. Then, as a material such as a thermoplastic resin is kneaded by the opposing roll and the sheet winding roll 302, the thermoplastic resin roll sheet 300 becomes a roll-shaped sheet on the surface of the sheet winding roll 302. That is, the roll sheet becomes 2005. However, in this state, since the width of the roll sheet 305 has not yet been regulated, both ends of the roll sheet 305 in the width direction are wavy.

 Therefore, the pair of blades 304 and 304 are moved so as to approach each other. With the movement, the edge 304 a of the rake face 304 b of the blade 304, 304 cuts the end of the roll sheet 305. Further, the pair of blades 304 and 304 are moved so as to approach each other. When the distance between the pair of blades 304, 304 becomes a predetermined length, the pair of blades 304, 304 is stopped. In this state, since the sheet winding roll 302 is rotating, the end of the roll sheet 300 moves relatively toward the rake face 304 b and the edge 30 4a cuts the end of the roll sheet 3 05, the cut end of the roll sheet 3 05 is scooped up and left and right from the rake face 3 0 4b as shown in Figure 28. While being guided by the guide surface 304c and being folded back toward the inside of the roll sheet 300, as shown in Fig. 29, the end of the roll sheet 300 that has been picked up is the roll sheet 304. Is turned back to the opposite side of the rotation direction.

As a result, the roll sheet 300 is scooped at both ends by the pair of blades 304, 304, and each of the scooped ends is rolled. The sheet is folded back to the back of the sheet 305 and inside the roll sheet 305, and the folded portion is carried to the gap between the opposing roll and the sheet winding roll 302, It will be kneaded together with the bank 306 already present in the gap.

 The portion of the pair of blades 304, 304 that cannot be picked up by the rake face 304b is rotated as the sheet wrapping roll 302 with a fixed width as a mouthsheet 300 having a fixed width. To go. In other words, the width of the roll sheet 304 is regulated by the pair of blades 304, 304.

 FIG. 31 is an explanatory view schematically showing a second kneading apparatus according to one embodiment of the present invention.

 As shown in FIG. 31, this kneading apparatus has one blade 7 arranged on a sheet winding roll 302. As shown in Figs. 31 and 32, this blade 7 is used to remove the roll sheet from the sheet winding roll 302, the rake face 300a, and the peeled roll sheet to the rotation of the sheet winding roll. Thus, the rear guide surface (corresponding to the surface indicated by 304 d in FIG. 27) for guiding the sheet so as to be folded in the direction opposite to the direction in which the roll sheet travels, and the peeled roll sheet. And a right and left guide surface 307b for guiding the sheet so as to be folded on the end side of the roll sheet by rotation of the sheet winding roll 302.

 Blade 7 shown in FIG. 31 is obtained by cutting a roll-shaped sheet wound around a sheet winding roll 302 at a central portion of the sheet and peeling the sheet, and then peeling the peeled sheet portion in the traveling direction of the roll sheet. Fold it back to the opposite side and roll it to the end of the roll sheet.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and can be appropriately designed and changed within the scope of the present invention. According to the present invention, when kneading the sheet material while forming a bank in the gap between the opposing roll and the sheet winding roll, both ends of the roll sheet formed on the sheet winding roll are scooped up. The end of the roll sheet that has been scooped in the opposite direction to the direction of rotation of the sheet and the inside of the roll sheet is folded intricately, and the folded mass is transported to the bank and kneaded with the bank. Excellent, and the width of the sheet on the sheet winding roll must be regulated at the same time. Can be provided.

 FIG. 33 shows a third kneading apparatus according to an embodiment of the present invention.

 As shown in FIG. 33, this kneading device has a pair of heating rolls 401 and a falling object returning device 402.

 The pair of ripening rolls 401 are arranged to face each other with their roll axes parallel to each other and with a predetermined gap. The pair of heating rolls 401 can be rotated in a predetermined rotation direction at a predetermined rotation speed by a driving device (not shown), and the gap between the pair of heating rolls 401 can be freely adjusted by a driving source (not shown). In addition, the heating roll 401 can be heated to a predetermined temperature by a heating means (not shown).

 The fallen object returning device 402 includes a driven wheel 403 located below the gap between the heating rolls 401, a drive wheel 404 located above the gap between the heating rolls 401, and this drive wheel. The endless belt 405 wrapped around the 404 and the driven wheel 403, and a position close to the drive wheel 404 so as to face the gap between the heating roll 401 of the belt 405 and the endless belt 405. And a scraper 406 that removes deposits on the belt 405. Other preferred aspects of the falling object returning device will be described later.

 The drive wheel 404 and the driven wheel 403 are supported by a port 407 which moves forward and backward by appropriate means such as a piston (not shown), and moves horizontally by the forward and backward movement of the rod 407. It is possible. When the rod 407 advances, the belt 405 comes into contact with one of the heating rolls 401 when the fallen object returning device 402 operates. When the rod 407 moves backward, the entire fallen object return device 402 is located at a position retreated from the heating roll 401.

According to this embodiment, first, when the powdery material 408 is supplied onto the gap between the pair of heating rolls 401, a part of the powdery material 408a falls from the gap. The dropped powdery material 408 a is received by the belt 405 located below the gap between the heating rolls 401. Since the belt 405 is rotating on an endless track by the drive wheel 404, the powdery material 408a received by the belt 405 is conveyed by the belt 405. . The surface of the powdered material 408 a on the belt 405 is softened or melted by the high-temperature heating roll 401. Since it is in a state, it is adhered to the surface of the belt 405. The powdery material 408a adhered to the surface of the belt 405 is conveyed with the rotation of the belt 405, and goes to the drive wheel 404 side. Since a scraper 406 that slides on the surface of the belt 405 is disposed on the drive wheel 404 side, the powder material 408a that is adhered to the belt 405 and conveyed is The scraper 406 removes it and drops it into the gap between the heating rolls 401. The dropped powdery material 4 08 is kneaded by a heating roll 401.

 As the kneading progresses in this manner, the powder material 408 on the heating roll 401 becomes a semi-molten state or a molten state, and the material hangs down from the gap between the heating rolls 401 in a sheet form. Coming.

 The leading end of the sheet-like material hanging down from the gap reaches the belt 405 located below the gap between the heating rolls 401, and the sheet-like material further sags. The sheet is adhered to the belt 405, and the sheet material is conveyed with the rotation of the belt 405.

 The transported sheet-like material is removed by a scraper 406, and the leading end of the sheet-like material falls into a gap between the heating rolls 401. Since the heating roll 401 rotates, even if the sheet-like material conveyed by the belt 405 and dropped into the gap is loosened from the gap, the heating roll 401 immediately rotates. It will be rolled on the surface of 1. Then, kneading is performed for a predetermined time while the sheet is wound around the outer periphery of the heating roll 401 in a roll shape and a bank is formed in the gap between the heating rolls 401.

 As described above, according to this embodiment, the powdery material 408 falling from the gap of the heating roll 401 in the initial stage of kneading can be returned to the gap of the heating roll 401 without waste, and The sheet-like material hanging from the gap between the heating rolls 401 can be turned into a heating sheet without requiring any manual operation.

The fallen object returning device 402 in the apparatus of the embodiment has a driving wheel 404 and a driven wheel 403, and the belt 405 comes into contact with the heating roll 401 by contact of the belt 405. If 05 can rotate with the rotation of the heating roll 401, the fallen object returning device does not require a driving wheel and has a pair of driven wheels wrapped around a belt. May be. Further, if the fallen object returning device 402 has a function of returning the powdery material 408 falling from the gap between the heating rolls 401 to the gap between the heating rolls 401, the above-described embodiment can be used. It is not necessary to have the belt 405 as in the above, and for example, it may have a bucket or a tub that circulates on an endless orbit.

 FIG. 34 shows another embodiment of the present invention.

 As shown in FIG. 34, the kneading apparatus includes a pair of heating rolls 401, a driven wheel 41 disposed below a gap between the heating rolls 401, and a gap between the heating rolls 401. , A first transporting section 420 having an endless belt 4 15, which is stretched over a driving wheel 4 14 located at the end, and an endless belt 4 facing the endless belt 4 15 of the first transporting section 4 20. And a first scraper that slides on a belt 4 15 of the first transport section 420 and a second transport section 427 having a roller 4 2 5 and a roll 4 2 6 around which the endless belt 4 2 5 is wound. 4 16 and a second varnish scraper 4 28 slidingly contacting the belt 4 25 of the second transport section 4 27.

 In the apparatus of this embodiment, when the powdered material 4 08 falls on the belt 4 15 in the first transport section 420 from the gap between the heating rolls 401, the dropped powdery material 4 08 The powder material is conveyed by the belt 415 in the first conveyance section 420, and then by the belt 415 in the first conveyance section 420 and the belt 425 in the second conveyance section 427. 4 08 will be sandwiched. The powdery material 408 conveyed by being sandwiched between the belt 415 of the first conveyance section 420 and the belt 425 of the second conveyance section 422 is moved by the first scraper 406. The powdered material 4 08 that is dropped and falls into the gap between the heating rolls 40 1 and adheres to the belt 4 25 of the second transport section 4 27 is removed by the varnish scraper 4 28 and heated. Rolls fall into the gap of 401.

 FIGS. 35 and 36 show another preferred embodiment of the fallen object returning device of the present invention.

 As shown in FIG. 35, the fallen object returning device 4330 includes a pair of support bases 431, a first driven roll 432, a second driven roll 433, a third driven roll 434, and a 4 It has a driven roll 4 35, an endless belt 4 36, and a base drive (not shown).

The pair of support bases 431 are arranged in parallel with each other with an interval substantially the same as the axial length of the heating rolls 437, 438. The pair of support bases 431 each drive one of the pair of heating rolls 437, 438 when the fallen object returning device 4330 is driven, in other words, the support rolls. The first support portion 431A located above the heating roll 437 located on the base 431 side and the other heating roll 438 of the pair of heating rolls 437, 438. A second support portion 431 B extending to a position below the pair of heating rolls 437 and 438, and the first support portion 431A and the second support portion 43. 1B and a third support portion 4311C that supports these.

 The shapes of the pair of support bases 4 3 1 are symmetrical to each other. A first driven roll 432 is rotatably supported between the pair of first support portions 431A. A second driven roll 433 is rotatably supported between the pair of second support portions 431B. Each of the pair of third support portions 431C is provided with an elongated hole 439 extending in a longitudinal direction at a predetermined length, and the elongated hole 439 of the pair of third support portions 431C is formed. A third driven roll 4 3 4 is rotatably supported by 39, and the third driven roll 4 3 4 can float along the elongated hole 4 39. The pair of third support portions 431C also rotatably supports the fourth driven roll 435 above the elongated hole 439.

 An endless belt 436 is stretched over the first driven roll 43, the second driven roll 43, the third driven roll 43, and the fourth driven roll 43.

 The first doctor blade 4440 that slides on the endless belt 436 is supported on the pivot shaft of the first driven roll 432 in the first support portion 431A, and the first urging force is applied. A first rotating base 442, which is biased so that the tip of the first doctor blade 440 always contacts the endless belt 4336 with a coil spring, for example, is rotatably mounted.

 In addition, a second support portion 431 B has a pivot shaft for the second driven roll 433 on the second support portion 431B. 2 While supporting the doctor blade 4 4 3 and the second urging member 4 4 4 4, for example, the tip of the second doctor blade 4 4 3 is always in contact with the peripheral surface of the other heating roll 4 3 8 using a coil panel. The second rotating base 445 urged in the direction is rotatably mounted.

The pair of support bases 4 3 1, the first driven roll 4 3 2, the second driven roll 4 3 3, The assembly including the third driven roll 4 3 4, the fourth driven roll 4 3 5, the endless belt 4 3 6, the first rotating base 4 4 2, and the second rotating base 4 4 5 is a base driving device. (Not shown), the endless belt 436 advances to a position where it winds around a predetermined circumferential surface of the heating roll 437, and the endless belt 436 extends from the circumferential surface of one heating roll 437. 4 3 6 can move backward to the position where it leaves.

 Next, the operation of the fallen object returning device 430 will be described.

 FIG. 36 shows the initial state of the fallen object returning device 4330.

 In FIG. 36, since the third driven roll 4 34 is located at the lower end of the elongated hole 4 39 due to its weight, the endless belt 4 36 does not loosen, and the first driven roll 4 4 3 2, the second driven roll 4 3 3, the third driven roll 4 3 4, and the fourth driven roll 4 3 5. The portion of the endless belt 436 spanned between the first driven roll 43 and the second driven roll 43 is separated from one of the heating rolls 37 by a predetermined distance. In this state, as shown in FIG. 36, the endless belt 4 3 6 stretched with tension between the first driven roll 4 32 and the second driven roll 43 3 The first turning base 442 that supports the first doctor blade 44 that comes into sliding contact with 6 is in a state of being turned by being piled by the urging force of the first urging member 441. In addition, although the second rotation base 4445 is rotated by the urging force of the second urging member 4444, it is regulated by the stop pin 4446 so as not to rotate any more.

 When, for example, a vinyl chloride resin powder is kneaded with the pair of heating rolls 437, 438 to form a vinyl chloride resin film or a vinyl chloride resin sheet, the heating rolls are arranged so as to face each other with a predetermined gap. The support base 431 is advanced by the base drive device toward the prepared pair of heating rolls 437, 438.

As the support base 4 3 1 advances, the endless belt 4 3 6 spanned between the first driven roll 4 3 2 and the second driven roll 4 3 3 comes into contact with the periphery of one heating roll, When the support base 431 further moves forward, the endless belt 4336 portion turns around the peripheral surface of one of the heating rolls 437 with a predetermined length. In the initial state, the endless belt 4336 part was stretched in a straight line between the first driven roll 432 and the second driven roll 433, but it was endlessly connected to one heating port. When the belt 4 3 6 becomes worn out, the first driven roll 4 3 2 and the second driven Since the endless belt 436 of the tangent length to the roll 433 requires an extra endless belt 436 of an extra length, only the necessary endless belt 4336 is the other endless belt. Since the length of the belt 4 36 must be reduced, the distance between the first driven roll 4 32 and the fourth driven roll 4 35, the second driven roll 4 3 3 and the third driven roll 4 The third driven roll 4 3 4 so that the endless belt 4 3 6 between the third driven roll 4 3 4 and the fourth driven roll 4 3 5 is straight. Floats in the slot 439, rises and stops at the specified position.

 When the endless belt 4336 turns around the circumference of the heating roll 437 with a predetermined length on the circumference of the heating roll 437, the base driving means moves the support base 431 forward. To stop.

 At the stage of the stop, the first rotating base 442 has already been rotated, and the end of the first doctor blade 440 is an endless belt 433 by the urging force of the first urging member 441. The surface of the part is in sliding contact. Also, in the state where the second rotating base 4 45 has already rotated against the biasing force of the second biasing member 44 and the forward movement of the support base 4 31 has stopped, the second biasing base 4 45 Due to the urging force of the member 444, the leading end of the second doctor blade 443 is in sliding contact with the peripheral surface of the other heating roll 438.

 Then, when the resin powder is supplied between the pair of rotating heating rolls 437, 438, a part of the resin powder falls from a slight gap between the pair of heating rolls 437, 438, and the resin is dropped. Another part of the powder adheres to the peripheral surface of the other heating roll 438 which is not rotating the endless belt 436.

The resin powder adhering to the peripheral surface of the other heating roll 438 moves with the rotation of the other heating roll 438, but is moved by the second doctor blade 443 to the peripheral surface of the other heating roll 438. Then, it falls on the upper surface of the endless belt 4336 existing between the second driven roll 4333 and the peripheral surface of one heating roll 437. Also, the resin powder that has fallen from the gap between the pair of heating rolls 437, 438 also has an endless belt existing between the second driven roll 433 and the peripheral surface of one heating roll 437. 4 3 6 It falls on the upper surface. The resin powder that has fallen to the endless belt 4336 portion and has been dropped off is conveyed by an endless belt 4336 driven by the rotation of the heating roll, and travels to the first driven roll 432. The resin powder adhering to the endless belt 436 and being conveyed is separated from the heating roll at the point where the endless belt 436 is separated from the heating roll. The part adheres to the heating roll, and a part of the part goes to the first driven roll 432 while adhering to the endless belt 4336. The resin powder conveyed toward the first driven roll 4 32 is scraped off from the surface of the endless belt 4 36 by the first doctor blade 4 40, and is removed between the pair of heating rolls 4 3 7 and 4 3 8. To fall.

 In this way, the resin powder that has fallen between the pair of heating rolls 437 and 438 or adhered to the other heating roll 438 is transported by the endless belt 436 and again heated by the pair of heating rolls. It is returned between rolls 4 3 7 and 4 3 8.

 The kneading of the resin powder by the pair of heating rolls 437, 438 causes the resin film or the resin sheet to be wound on one of the heating rolls 37, so that the pair of heating rolls 437, The resin film or resin sheet that falls or hangs down from between the 438 and the endless belt on the pair of ripening rolls 437 and 438 in the same manner as above.

Returned by 4 3 6

 According to the fallen object returning device 430, the resin powder falling from the gap between the pair of heating rolls can be automatically returned between the original heating rolls without the manual operation of the operator.

 According to the present invention, it is possible to provide a kneading apparatus that can easily and reliably return a falling object falling from the gap between the heating rolls to the gap between the heating rolls without manual intervention. FIG. 37 is a schematic explanatory view showing one embodiment of the present invention.

 As shown in FIG. 37, the roll sheet cutting device 501 is incorporated in a kneading roll device 502.

 The kneading roll device 502 has a pair of heating rolls 503, and a pair of heating rolls.

One of the heating rolls 503 is a sheet winding roll 503 a capable of rolling a sheet-shaped material into a lip shape around its peripheral surface, and the other heating roll 503. Reference numeral 3 denotes an opposing roll 503b which is arranged opposite to the sheet winding roll 503a with its axis parallel to each other with a predetermined gap provided therebetween.

 This roll sheet cutting device 501 has a wire 504 and a locking means 505.

The wire 504 is parallel to the axis of the sheet winding roll 503a and The sheet winding roll 503a is arranged with a predetermined clearance from the peripheral surface. In this embodiment, a biasing member 506, for example, a spring, is connected to each end of the wire 504, and position regulating pins 507, 507 are provided near both ends of the wire 504. In contact.

 Here, as long as the object of the present invention can be achieved, the material, dimensions, and the like of the wire 504 can be appropriately determined. Specifically, for example, a strong piano wire or the like can be used as the wire 504.

 The locking means 505 forcibly forces a portion of the wire 504 between the position regulating pins 507 and 507 to separate from the sheet winding roll 503a. Various mechanisms can be employed without restriction as long as they can move and then release the wire 504. In this embodiment, as shown in FIG. 38, a shaft 505a capable of moving forward and backward and moving up and down with respect to the sheet winding roll 503a and a tip end of the shaft 505a are provided. A mechanism including a movably provided claw member 505b can be given. In the locking means 505 shown in FIG. 37, in the initial state, as shown in FIG. 38, for example, the claw member 505 b connected to the tip of the shaft 505a is formed by the shaft 505 The shaft body 505a, which is bent at a right angle to a and has such a claw member 505b, is located at a position retracted from the sheet winding roll 503a. When the wire 504 between the position regulating pins 507 and 507 is to be locked, the shaft 505a advances to lock the wire 504 with the claw member 505b. As shown in FIG. 39, with the wire 504 locked, the shaft body 505a is retracted so as to separate from the sheet winding roll 503a, and then the claw member 505b is removed. The locking means 505 is configured so that the locking of the wire 504 by the claw member 505b can be released by rotating.

Although not shown, the roll sheet cutting device 501 is provided with a wire cleaning means for cleaning the wire 504 between the position regulating pins 507 and 507. . The mechanism of the wire cleaning means is not particularly limited as long as it has a function of removing dirt on the wire 504. As the wire cleaning means, for example, a pair of cleaning pads that can sandwich the wire 504 up and down, and a cleaning pad that sandwiches the wire 504, while the wire 504 is sandwiched A mechanism including cleaning pad driving means for horizontally moving along the wire 504 can be given.

 Next, the operation of this embodiment will be described.

 First, a sheet 508 is wound in a roll shape on the peripheral surface of the sheet winding roll 503a. A wire 504 is stretched parallel to the axis of the sheet winding roll 503a and with a predetermined clearance from the surface of the sheet winding roll 503a. Both ends of the wire 504 are pulled by a biasing member. The locking means 505 is disposed at a position retracted from the sheet winding roll 503a.

 In this state, when cutting the sheet 508 on the sheet winding roll 503a, first, the locking means 505 advances toward the sheet winding roll 503a. The claw member 505 b at the tip of the shaft 505 a in the locking means 505 hangs downward, for example, at right angles to the shaft 505 a. When the tip of the shaft 505a approaches the sheet winding roll 503a sufficiently close, the tip of the shaft 505a is lowered to engage the wire 504 with the claw member 505b. Stop. The shaft body 505a, on which the wire 504 is locked by the claw member 505b, retreats from the sheet winding roll 503a. When the shaft body 505a retreats to a predetermined position, The locking of the wire 504 is released by rotating the claw member 505 b. Since the wire 504 is tensioned by the urging member 506, the claw member 504 is provided. Due to the rotation of 5b, the wire 504 resiliently rushes toward the sheet winding roll 503a without loosening, and the rushed wire 504 is shown in FIGS. 40 and 41. As shown in Fig. 5, the sheet collides with the sheet on the sheet winding roll 503a, bites into the sheet instantaneously, and reaches the surface of the sheet winding roll 503a to stop the rush. As a result, as shown in Fig. 41, the sheet 508 on the sheet winding roll 503a is cut.

 After cutting the sheet 508, the wire 504 is urged by the urging member 506, so that the wire 504 immediately returns to the initial position facing the sheet winding roll 503a. Then, a sheet dirt attached to the wire 504 is removed by a wire 504 cleaning device (not shown).

In FIG. 41, the wire 504 is shown as a wire having a circular cross section. In the present invention, however, there is no particular limitation on the cross-sectional shape of the wire 504 as long as the sheet can be cut, and various cross-sectional shapes such as a triangular cross-section, a rhombic cross-section, and an elliptical cross-section are available. The shape can be arbitrarily adopted.

 As mentioned above, although one Example of this invention was described in full detail, this invention is not limited to the said Example, A design change can be made suitably within the range of the summary of this invention.

 For example, a roll sheet cutting device 501 having a structure shown in FIG. 42 can be mentioned.

 The roll sheet cutting device 501 shown in FIG. 42 includes a pair of driven wheels 509 urged and rotated by an urging member 506 in a horizontal plane facing the sheet winding roll 503a. , 509, guide wheel 5110, drive wheel 5111, and their followers 509, 509, endlessly stretched over guide wheel 5110 and drive wheel 511 Shape wire

504, locking means 505a, and wire cleaning means 512.

 The pair of driven wheels 509, 509 are formed such that a wire 504 stretched between the driven wheels 509, 509 is parallel to the axis of the sheet winding roll 503 a, And a sheet winding roll 5 along a direction parallel to the axis of the sheet winding roll 503a so that the sheet winding roll 503 can be positioned at a predetermined distance from the surface of the sheet winding roll 503a. The sheet is placed at an appropriate position with an interval larger than the interval between both ends of the sheet 508 on 03a.

 The wire cleaning means 512 has a pair of cleaning pads (not shown) sandwiching the wire 504, and the cleaning pad is fixed and sandwiched with the wire 504 sandwiched therebetween.

 The locking means 505a may be the mechanism shown in FIG. 38, or a hook capable of moving up and down and moving forward and backward.

In the mouth sheet cutting device 501 shown in FIG. 42, the wire 504 is stationary at a position where the wire 504 faces the sheet winding roll 503a by a pair of driven wheels 509 and 509 as an initial state. are doing. When cutting the sheet 508, the locking means 505a locks the wire 504 between the driven wheels 509 and 509, and locks the wire 504. In this state, the locking means 505a is retracted so as to separate from the sheet winding roll 503a. This allows wire 5 0 4 Pulled. The driven wheels 509 and 509 also rotate appropriately following the tension of the wire 504. Since the biasing member 506 is connected to the driven wheels 509 and 509, the tension of the wire 504 pulled by the locking means 505a increases as the wire is pulled.

 When the locking means 505a retracts to the predetermined position, the locking of the wire 504 by the locking means 505a is released.

 The released wire 504 is elastically rushed toward the sheet 508 of the sheet wrapping roll 503a because a large tension is applied by the urging member 506 to the released wire 504. In the same manner as in the embodiment shown in FIGS. 37 to 41, the sheet 508 on the sheet winding roll 503a is instantaneously cut, and the wire after cutting is cut. 504 returns to the initial position. When the wire 504 returns to the initial position, the drive wheel 5111 rotates to move the wire 504 at least as long as the sheet width on the sheet winding roll 503a. . By this movement of the wire 504, the new wire 504, which is not stained by the sheet 508, is rolled on the sheet winding roll.

The sheet on the top of the 503 a will be faced, and the wire cleaning means 5 12 will clean the portion of the wire 504 which is soiled by cutting the sheet.

 ADVANTAGE OF THE INVENTION According to the roll sheet cutting apparatus of this invention, it does not damage the surface of a sheet winding roll, and the cut end surface of a sheet becomes an accurate straight line, without manual operation, and by an automatic operation. The sheet can be cut. A heating roll cleaning device 600 shown in FIG. 43 mixes a synthetic resin and manufactures a kneaded product. A pair of heating rolls arranged in parallel with a gap G of about 0.2 mm is used.

It is arranged below 60 2 and 60 3.

The heating roll cleaning device 600 includes a heating roll 60 2, 60 3 formed of the same material as the synthetic resin for cleaning the surfaces of the pair of heating rolls 60 2, 60 3. A cleaning roll 604 having a surface hardness lower (softer) than the surface hardness and a heating roll 602 are disposed below an intermediate portion between the heating rolls 602 and 603. Cleaning roll displacement means 605 for slidingly contacting the surfaces of the cleaning rolls 602 and 603; and a scraper 606 as a dirt removing member for removing dirt on the surface of the cleaning roll 604. . The heating rolls 62, 603 are driven in the directions indicated by arrows in FIG. 43 at different rotational speeds by individual driving sources (not shown).

 The heating rolls 602 and 603 are supported by supporting members 610 and 611 provided with springs 608 and 609, respectively, so that the interval between them can be arbitrarily changed. ing.

 Further, the cleaning roll 604 has a dedicated driving source, and has a rotation speed different from that of the heating rolls 602 and 603, for example, in the same direction as the heating roll 603 as shown in FIG. To be driven.

 The cleaning roll displacement means 605 comprises: a support 612 supporting the cleaning roll 604; and the support 612 being displaced into heating rolls 602, 603 as shown in FIG. And a hydraulic cylinder 607 for bringing the cleaning roll 604 into sliding contact with each surface of the heating rolls 602 and 603, respectively. Next, the operation of the heating roll cleaning device 600 will be described.

 Synthetic resin is loaded between a pair of heating rolls 62, 603, and both heating rolls 602, 603 are moved in the direction of the arrow shown in Fig. 43 so that the synthetic resin is wound. Thus, a kneaded product is produced by both heating rolls 62 and 603. Due to such operation of the two heating rolls 62, 603, the synthetic resin in a molten or semi-molten state adheres to the two heating rolls 62, 603, respectively, as dirt.

 The distance between the two heating rolls 62 and 603 is set to about several cm by the support members 61 and 61. In this state, the cleaning roll displacement means 60 05 The cleaning roll 604 is displaced together with the scraper 606 toward the heating rolls 602, 603 as shown in FIG. 44 together with the scraper 606 by the hydraulic cylinder 607 through the support 612. The cleaning roll 604 is brought into sliding contact with the surfaces of both heating rolls 60 2 and 60 3. At this time, the rotating directions of the heating rolls 62, 603 and the cleaning roll 604 are set, for example, in the directions of the arrows shown in FIG. 44, respectively, and the rotating speeds are set to be different from each other.

As a result, the cleaning roll 604 forcibly wipes the synthetic resin adhered to the surfaces of the heating rolls 62 and 603. With the operation of the cleaning roll 604, the surface of the cleaning roll 604 becomes dirty with the resin wiped from the heating rolls 602 and 603. 6 is a cleaning roll The surface of the 604 is stained and removed.

 As a result, the surfaces of both heating rolls 62, 603 can be reliably and automatically cleaned, and the operating rate of both heating rolls can be improved.

 In addition, according to the heating roll cleaning device 600, manual cleaning work as in the related art is not required, so that the safety of workers can be ensured.

 Next, another embodiment of the present invention will be described with reference to FIG.

 A heating roll cleaning device 600A shown in FIG. 45 includes a rotary support 6 for supporting the cleaning roll 604 together with the scraper 606 in place of the hydraulic cylinder 607 and the support 612. There is a cleaning roll displacing means 600A using a rotary drive mechanism (not shown) for driving the rotary support member 15 in the directions of arrows a and b shown in FIG. 45. It is.

 According to the heating roll cleaning device 601A, the cleaning roll 604 is slidably contacted with either one of the surfaces of the heating rolls 602, 603 by the cleaning roll displacement means 605A. .

 Thus, the cleaning roll 604 rotates and wipes off the synthetic resin adhered to the surface of the heating port 602 or 603 while rotating. With the operation of the cleaning roll 604, the surface of the cleaning roll 604 becomes dirty with the synthetic resin wiped from the heating roll 602 or 603, but at this time, The scraper 606 removes dirt on the surface of the cleaning roll 604.

 As a result, the cleaning of the surfaces of both heating rolls 602 and 603 can be selectively, reliably and automatically performed, and the operation rate of both heating rolls 602 and 603 can be improved. Becomes possible. It also improves safety.

 The present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the invention.

 For example, as the cleaning roll displacement means 605, an electromagnetic plunger and a spring may be used in addition to the hydraulic cylinder 612.

According to the present invention, since the above-described configuration is employed, the pair of heating rolls to which the synthetic resin adheres can be automatically and reliably cleaned, and the operation rate of the pair of heating rolls can be improved and work safety can be improved. It is possible to provide a first heating roll cleaning device capable of realizing the securing. Further, according to the present invention, since the above-described configuration is employed, the pair of heating rolls to which the synthetic resin adheres can be selectively, automatically, and reliably cleaned, and the same effect as in the above-described case can be obtained. Two heating roll cleaning devices can be provided. The heating roll cleaning device 701 shown in FIG. 46 is a pair of heating rolls 70 2, 70 3 arranged in parallel with a gap G of about 0.2 mm for kneading a synthetic resin to produce a kneaded product. It is arranged below.

 The heating roll cleaning device 701 is a cleaning device for feeding and conveying a long cross-shaped cleaning member 704 for cleaning the surface of the pair of heating rolls 702, 703. A member supplying means 705, and a cleaning member 704 in the middle of a projecting path of the cleaning member supplying means 705 is slidably contacted with the pair of heating rolls 702, 703. Means 706.

 The cleaning member 704 is a long material made of any material selected from cloth impregnated with an organic solvent (woven fabric, knitted fabric, non-woven fabric, etc.), sheet leather, artificial leather, and the like. , 703 used. The cleaning member supply means 705 winds the cleaning member 704 and feeds the cleaning member 704 under a heating roll 702 which feeds and conveys the cleaning member 704 by a driving source (not shown). 07, and a take-up roll 708 placed SB below the heating roll 703 driven by a drive source (not shown) for winding up the cleaning member 704 from the pay-out roll 707. ing.

 The cleaning member sliding contact means 706 includes: a feed roll 709 arranged on a transport path of the cleaning member 704 between the feeding roll 707 and the take-up roll 708; And a cleaning member 704 which moves the support 710 toward the heating rolls 702, 703 and comes into contact with the feed roll 709. And a hydraulic silling 711 which comes into contact with the surface of each of the heating rolls 72, 703.

 The above-described heating rolls 72, 703 are driven by individual driving sources, and are driven at different rotational speeds in the direction of the arrow shown in FIG.

Further, the feed roll 709 has a dedicated drive source, and winds up the cleaning member 704 as shown in FIG. 46 at a rotation speed different from that of the heating rolls 702, 703. The roll is sent to the roll 708 side.

 Next, the operation of the heating roll cleaning device 700 will be described.

 The synthetic resin is loaded between a pair of heating rolls 720 and 703, and both heating rolls 720 and 703 are driven in the direction of the arrow shown in FIG. 46 so as to wind the synthetic resin. A kneaded product is produced by the two heating rolls 72, 703. With the operation of the two heating rolls 72, 703, the synthetic resin in a molten or semi-molten state adheres to the two heating rolls 72, 703, respectively.

 The hydraulic cylinder 711 of the sweeping member sliding contact means 706 is operated with respect to both of the heating rolls 702, 703, and the support 7110, the heating rolls 702, The cleaning member 704 in the middle of the feeding path from the feeding roll 707 in the cleaning member supply means 705 is slidably contacted via the feed roll 709 driven at a rotation speed different from the rotation speed of the feeding roller 703.

 As a result, the cleaning member 704 wipes out the synthetic resin adhering to the surfaces of the two heating rolls 702 and 703 while being fed and conveyed. By continuing the feeding of the cleaning member 704 and the winding by the take-up roll 708, the surfaces of both heating rolls 702, 703 always have a clean cleaning member 704, respectively. As a result, the surfaces of both heating rolls 70 2 and 70 3 can be reliably and automatically cleaned, and the operation rate of both heating rolls 70 2 and 70 3 is improved. Can be achieved.

 In addition, according to the heating roll cleaning device 701, the manual cleaning work as in the related art is not required, so that the safety of the worker can be ensured.

 Next, another embodiment of the present invention will be described with reference to FIG.

 The heating roll cleaning device 701A shown in FIG. 47 uses a box-shaped feeding cassette 712 in which the cleaning member 704 is stored in a folded state instead of the feeding roll 707. Is a feature.

In the case of the heating roll cleaning device 701A, the feed member 4 from the feeding cassette 712 is driven by driving the feed roll 709 and the take-up roll 708 in the direction of the arrow so that the heating roll is heated. The synthetic resin adhering to the surfaces of both heating holes 720 and 703 is wiped off while being fed and conveyed in the same manner as in the case of cleaning device 70 7A. Therefore, the heating roll cleaning device 700A also exhibits the same function and effect as the above-described case. Become.

 The present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the invention.

 For example, as the cleaning member sliding contact means 706, an electromagnetic plunger and a spring may be used in addition to the hydraulic cylinder 711.

 In addition, the cleaning member 704 is not limited to the above-described cloth and the like, and may be a long brush planted on the surface.

 According to the present invention described in detail above, the above-described configuration enables automatic and reliable cleaning of the pair of heating rolls to which the synthetic resin has adhered. It is possible to provide a heating roll cleaning device capable of ensuring the above safety.

Claims

Scope of word blue 1. A kneading roll group, and a form feeding means for sending a form having a window for light transmission toward a sheet winding roll for covering a surface of a sheet of a predetermined width in the kneading roll group. By pressing the form sent out toward the sheet winding roll by the form feeding means against the sheet winding roll, the sheet covering the surface of the sheet winding roll is cut and the cut sheet is cut. A sheet comprising: a sheet sticking means for sticking and moving to the mold; and a foreign matter detecting means for detecting foreign matter in the sheet attached to the mold by the sheet sticking means. Inspection equipment.  2. The sheet inspection apparatus according to claim 1, wherein the sheet sticking unit has a pinch roll for pressing the form sent to a sheet winding roll against a sheet winding roll.  3. In claim 1, wherein the form feeding means feeds the form into a gap between a sheet winding roll and an opposing roll facing the sheet winding roll, wherein the sheet attaching means is provided. The sheet inspection apparatus according to claim 1, wherein the sheet inspection apparatus includes the opposed roll.  4. The light emitting device according to claim 1, wherein the foreign matter detecting means irradiates light from one side of a mold to which a sheet is attached, and a sheet illuminated by the light irradiating device. The sheet inspection apparatus according to claim 1, further comprising: an imaging device that performs the operation; and a determination unit that determines a foreign substance in the sheet based on a video signal output from the imaging device.  5. The memory according to claim 4, further comprising a memory for reading and writing identification data obtained by reading an identification symbol provided on the mold, and data for determining the identification data and foreign matter in the sheet by the determination means. Sheet inspection equipment.  6. A sheet material large enough to cut and stick the sheet covering the sheet winding roll, a light transmission window provided at the center of the sheet material, and a tip of the sheet material A linear cutting blade provided in the vicinity of the part. 7. A sheet material large enough to cut and seal the sheet covering the sheet winding roll, a light-transmitting window provided at the center of the sheet material, and the window portion A mold having a tapered portion or a round portion formed at an opening edge of the mold.  8. The mold according to claim 6 or 7, wherein an adhesive is applied to a surface of the plate material to which the sheet is adhered. '9. A kneading roll group, and a form feeding means for sending a form having a window for light transmission toward a sheet winding roll for covering a surface of a sheet of a predetermined width in the kneading roll group. By pressing the form sent out toward the sheet winding roll by the form feeding means against the sheet winding roll, the sheet covering the surface of the sheet winding roll is cut, and the cut sheet is cut. A sheet preparation sample preparation apparatus, comprising: a sheet sticking means for sticking and moving to a mold.  10. A housing for accommodating a plurality of formwork, a formwork selecting means for selecting one formwork from the formwork in the case, and guiding the selected formwork toward the sheet winding roll. And a form guiding device.  11. A housing having a front part that accommodates a plurality of formwork and has an upper opening that opens upward and a lower opening that opens below, and a form housed in the housing is connected to the front surface. A pressing member that presses against the back surface of the part, and a lower end pressing member that presses the lower end of the form housed in the housing and presses a form other than the form to be drawn out further from the back of the front part. Picking up means for lifting the foremost mold upward while suctioning the surface of the foremost mold behind the front part, which is exposed to the upper opening, with the first suction member; and The lower end of the earliest formwork (2) A formwork characterized by comprising: guide means for guiding the foremost formwork toward a sheet winding roll for covering a sheet of a predetermined width on the surface while sucking with a suction member. Feeder. 1 2-At least two tracing studs placed at a predetermined interval on a base that can move forward and backward toward the kneading roll, and a displacement detection unit that outputs the displacement of the tracing stylus as an electric signal And a memory for storing data output from the displacement detection unit when the measuring element comes into contact with the surface of the kneading roll on which the sheet is not wound, and the measuring element comes into contact with the sheet wound around the kneading roll. Sometimes, the thickness of the sheet is determined based on the data output from the displacement detector and the data read from the memory. And an arithmetic processing section for calculating the sheet thickness.  13. A pair of heating rolls whose gap length can be adjusted with each other and whose rotation direction and rotation speed can be varied, and a temperature measurement that measures the heating temperature of this heating roll and indicates the measured temperature A temperature sensor that outputs data, a rotation state sensor that detects a rotation state of each of the heating rolls, and outputs respective detection data; a position sensor that measures a gap between the pair of heating rolls; A bank sensor for detecting the state of the bank existing in the gap between the pair of heating rolls and various data output from the various sensors are input, and the formation and disappearance of the bank in the gap between the pair of heating rolls are repeated a required number of times. Control means for automatically controlling the relative distance, heating temperature, rotation direction, and rotation speed of each of the pair of heating rolls. Automatic kneading device according to claim. , 14. An opposing roll, a sheet winding roll disposed opposite to the opposing roll, and a rake face, which is disposed on the sheet winding roll and which peels off the roll sheet from the sheet winding roll. The rear guide surface that guides the roll sheet folded so as to be folded in the direction opposite to the direction in which the roll sheet advances by the rotation of the sheet winding roll, and the peeled roll sheet by rotating the sheet winding roll A pair of blades having left and right guide surfaces for guiding the roll sheet so as to be folded in the center line direction. 15. Opposite roll, a sheet winding roll SB disposed opposite to the opposing roll, and a rake face, which is disposed on the sheet winding roll and which peels off the roll sheet from the sheet winding roll. A rear guide surface that guides the peeled roll sheet so as to be folded in a direction opposite to the direction in which the roll sheet advances by rotation of the sheet winding roll, and a peeled roll sheet by rotating the sheet winding roll A kneading apparatus comprising: a blade having left and right guides for guiding the roll sheet so as to be folded on an end side thereof. 16. The kneading apparatus according to claim 14, wherein the blade is mounted on a sheet winding roll so as to be displaceable in a roll axis direction by a driving source. 17. A kneading device comprising: a pair of heating rolls; and a falling object returning device that returns a falling object falling from a gap between the heating rolls to an upper portion of the gap between the pair of heating rolls.  18. A first supporting portion facing above the pair of heating rolls, a second supporting portion facing below the heating roll, and a third supporting portion connecting the first supporting portion and the second supporting portion. A pair of support bases arranged opposite to each other, a first driven roll pivotally supported by the pair of first support portions, a second driven roll pivotally supported between the pair of second support portions, A driven roll group having at least a third driven roll movably supported, an endless belt stretched over the rolls in the driven roll group, and a heating roll by moving the support base back and forth. A falling object return device, comprising: a base driving means for moving the base material to and away from the object.  1 9. The fallen object returning device has a first blade for scraping the surface of the endless belt passed over the first driven roll, and the endless belt is not rotated near the second driven roll. 19. The fallen object returning device according to claim 18, further comprising a second blade for removing one of the heating rolls.  20. Forming the kneading roll and facing the sheet winding roll formed by winding the sheet into a roll, and placing the kneading roll parallel to the axis of the sheet winding roll and stretching the sheet together with an urging member. A roll sheet cutting device comprising: a wire provided; and a locking means for forcibly moving the wire away from the sheet winding roll and then releasing the wire.  21. The roll sheet cutting device according to claim 20, wherein the wire has biasing members connected to both ends thereof.  22. The roll sheet cutting apparatus according to claim 20, wherein the wire is formed endlessly via a pair of driven wheels and a drive wheel that can be displaced by an urging member.  2 3 .—Cleaning roll for cleaning the surface of the pair of heating rolls, cleaning roll displacement means for bringing the cleaning roll into sliding contact with each surface of the pair of heating rolls, and dirt for removing the dirt on the surface of the cleaning roll A heating roll having a removing member 2 4. —A cleaning roll that cleans the surface of a pair of heating rolls, and a cleaning roll displacement that selectively slides the cleaning roll on one of the surfaces of the pair of heating rolls Means, and a dirt removing member for removing dirt on the surface of the cleaning roll.  25. —Cleaning member supply means for feeding and transporting a long cross-shaped cleaning member for cleaning the surface of the pair of heating rolls, and the cleaning member in the middle of the feeding path in the cleaning member supply means is a pair. And a cleaning member slidingly contacting the heating roll.  26. —Cleaning member supply means for ejecting and transporting a long, cross-shaped cleaning member for cleaning the surface of the pair of heating rolls; and the cleaning member in the middle of the feeding path of the cleaning member supply means A cleaning member slidingly contacting selectively with any one of the heating rolls.