JPH11246087A - Touch roller supporting arm and touch roller device for sheet split-winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a touch roller supporting arm for a sheet split-winding device, relatively simple in structure, capable of holding a touch roller positively in a specified attitude during sheet winding so as not to generate a winding failure even if the thickness unevenness of the sheet is considerable and allowing touch roller replacement work to be performed easily in a short time. SOLUTION: This device is provided with a holding frame comprising a pair of arm members 8 for holding both end parts of a center shaft 2a of a touch roller 2, and a lateral member 9 fixedly provided between a pair of arm members 8; a plurality of oscillating members 6 mounted in an oscillating and longitudinally slidably state to a supporting guide member 4 extended parallel in a sheet cross direction; and a fastening means 7 for fixing the holding frame to the oscillating members 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet dividing and winding apparatus for winding a belt-shaped sheet into a plurality of strips while winding the strip-shaped sheet into a plurality of strips. The present invention relates to a touch roller supporting arm to be supported, and a touch roller device for individually bringing the touch rollers supported by the touch roller supporting arm into contact with the outer circumference of a winding roll being wound in a line.

[0002]

2. Description of the Related Art Conventionally, in a sheet dividing and winding apparatus, a wide band-shaped sheet is divided into a plurality of strips and distributed to a plurality of winding positions, and the sheets are wound as shown in FIGS. There is a type in which the touch roller 2 is individually wound around a winding roll R being wound around a winding core C which is arranged in a line at a position, and the outer periphery of the winding roll R being wound. And the touch roller supporting arm supporting the touch roller 2 includes:
A pair of arm members 41 which are individually swingably mounted on a pair of movable members 13 which can be slid on the outer periphery of the support guide member 4 to a required position and which extend to the center axis 2a of the touch roller 2 are provided. The end of the center shaft 2a of the touch roller 2 is fitted into a U-shaped groove 41a provided at the tip of the arm member 41, and the outer periphery of the end of the center shaft 2a is provided with a knob provided at the tip of the arm member 41. By tightening with the bolt 42,
There is a type in which the touch roller 2 is held by the tip portions of a pair of arm members 41, 41.

[0003]

In the touch roller device of the sheet split winding device, the touch roller is originally brought into contact with the outer periphery of the winding roll with a required pressing force to flow between the sheet winding layers of the winding roll. It adjusts the amount of air to be produced, thereby preventing the occurrence of bumps on the outer periphery of the take-up roll and the unevenness of the end surface thereof. In other words, in order to prevent the winding roll from collapsing, prevent a large amount of air from flowing between the sheet winding layers and reduce the friction coefficient between the layers, and create an appropriate air layer in the thin portion. Compensate the thickness and finish the outer diameter uniform in the width direction as a whole.

However, with the above-described touch roller supporting arm, when a belt-like sheet such as a plastic film having uneven thickness or uneven thickness in the sheet width direction by printed ink is wound up, the outer diameter of the winding roll is reduced in the width direction. In this case, there is a problem that a locally large portion, that is, a bump is remarkably generated, or the end face of the take-up roll is irregular, so that the take-up roll is likely to be defective.

[0005] The cause of the above-mentioned problem is considered as follows. That is, in the above-described touch roller supporting arm, the arm member is long, and the pair of arm members are connected only by the center axis of the touch roller, so that one end is lifted by the touch roller and the other end is pushed down. Low rigidity against twisting force. Also, uneven thickness of the sheet itself,
Since the thickness unevenness of the printed sheet due to the ink exists at an unspecified location in the sheet width direction, the position of the bump of the take-up roll caused by the unevenness may vary in various ways. When the touch roller presses the take-up roll, different loads are applied to the left and right swing members due to the reaction of the pressing force of the bumps, and the loads cause the right and left arm members to rotate at different rotational angles with respect to the support guide member with respect to the support guide member. The support arm is twisted due to the difference, and the touch roller easily tilts from a position parallel to the core. Therefore, in the conventional touch roller supporting arm, during the winding of the touch roller, the touch roller is swung according to the unevenness of the outer periphery of the winding roll, whereby the touch roller reduces the air volume of the winding layer of the winding roll. It cannot be adjusted properly.

In the touch roller supporting arm of the above-described conventional sheet winding device, another arm member cannot be arranged between a pair of arm members supporting both ends of the touch roller. When changed, as shown in FIG. 11, the unused arm member 41 must be moved to the outside of the pair of arm members 41 to be used so as not to contact the touch roller 2. There is a problem that it takes time to replace the touch roller.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention ensures that the touch roller has a predetermined posture during winding of a sheet so that poor winding does not occur even if the sheet is extremely uneven in thickness. It is an object of the present invention to obtain a touch roller supporting arm of a sheet dividing and winding device having a relatively simple structure that can be easily held in a short time and can easily replace a touch roller.

[0008] Further, the present invention provides a method in which a touch roller is elastically contacted with each of the winding rolls arranged in a line at a winding position so as to prevent poor winding even if the sheet is extremely uneven in thickness. It is another object of the present invention to provide a touch roller device having a simple structure that can easily and easily replace a touch roller with a change in a sheet division width in a short time.

[0009]

According to the present invention, there is provided a holding frame comprising a pair of arm members for holding both ends of a center shaft of a touch roller, and a horizontal member fixed between the pair of arm members.
It is characterized by comprising a plurality of swing members slidably and slidably mounted in a support guide member extending parallel to a sheet width direction and slidable in a longitudinal direction, and fastening means for fixing the holding frame to the swing member. And

The holding frame is composed of a pair of arm members for holding the center axis of the touch roller and a horizontal member fixed between the pair of arm members, so that the arm member for holding the center axis of the touch roller is a horizontal member. Thus, a high torsional rigidity can be obtained. Then, by fixing the holding frame to the swinging member by fastening means and integrating the holding frame and the pair of swinging members, each of the pair of swinging members has irregularities on the outer peripheral surface of the winding roll. Even if a different load is applied from the touch roller to the touch roller, the touch roller can be surely held so as not to be loosened, whereby the original function of the touch roller can be exhibited and defective winding can be prevented. Moreover, since the pair of arm members of the holding frame hold the center axis of the touch roller and the holding frame is supported by the swinging member, a short swinging member is sufficient, and the pair of swinging members supporting the holding frame can be used. In addition, even if a swing member that is not used is arranged, there is no problem because the swing member does not reach the touch roller. Therefore, when replacing the touch roller, it is not necessary to retract the unused swing member outside the pair of swing members that support the holding frame, and it is easy to replace the touch roller with the change of the sheet division width. You can do it in a short time.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic plan view of a touch roller device of a sheet dividing and winding device according to a first embodiment of the present invention, and FIG.
FIG. 2 is a schematic side view of the touch roller device shown in FIG.
In the touch roller device of the sheet split winding device, the touch roller 2 supported by the touch roller support arm 1 is brought into contact with the outer periphery of the winding roll R during winding of the sheet. Each winding roll R
Is formed by winding a divided sheet into a roll around a winding core C mounted on a known winding shaft 3 provided in the winding position in parallel with the sheet width direction, and the divided sheet has a wide band shape. The sheet was cut in a longitudinal direction so as to have a required width by a slitter (not shown) and divided into a plurality of strips. Thereafter, the sheet was alternately distributed to the core C at two winding positions, and reached the core C. Things.

The touch roller device has a support guide member 4 for supporting the touch roller support arm 1. The support guide member 4 extends in parallel with the sheet width direction, and both ends thereof are supported by a machine frame (not shown).

The touch roller supporting arm 1 includes a holding frame 5, a pair of swing members 6, and fastening means 7 for fastening the holding frame 5 to the swing members 6.

As shown in FIG. 3A, the holding frame 5 includes a pair of arm members 8 for holding both ends of the center shaft 2a of the touch roller 2, and a horizontal member fixed between the pair of arm members 8. 9 and the central shaft 2a has a bearing 2 attached thereto.
The both ends of the body of the touch roller 2 are rotatably supported via b. In order to increase the rigidity of the holding frame 5, a screw 2c formed at the end of the central shaft 2a is passed through a hole formed in the arm member 8, and a nut 2d is attached to the screw 2c and tightened. The center shaft 2a is fixed to the arm member 8. Further, in order to securely attach the holding frame 5 to the swinging member 6 in a small occupied space, and to effectively increase the rigidity of the entire touch roller supporting arm, the horizontal member 9 of the holding frame 5 includes the arm member 8.
And a pair of brackets 9a fixed to the arm member 8 are located behind the arm member 8. The fastening means 7 includes a first fastening means 10 for fastening and fixing the arm member 8 to the upper surface of the swing member 6 and a second fastening means 11 for fastening and fixing the lateral member 9 to the side surface of the swing member 6. The pair of brackets 9a are fixed to both ends of the horizontal member 9 by welding, and the bracket 9a is
2 is fixed to the side surface of the arm member 8.

The swinging member 6 is rotatably mounted on a cylindrical outer peripheral surface 13a formed on the movable member 13 as shown in FIG. 3B, and the movable member 13 is slidable on the outer periphery of the support guide member 4. It is attached to. Therefore, the swinging member 6 is mounted so as to be swingable and slidable in the longitudinal direction. The movable member 13 can be fixed at a required position on the support guide member 4 by a bolt 14 with a knob.

The first fastening means 10 shown in FIG. 3A is a bolt with a knob, and is held on the arm member 8 by an appropriate means so as not to fall off. The second fastening means 11 is composed of studs 15 fixed to both ends of the horizontal member 9, right and left flange members 16, and a female screw body 17 with a handle.
The flange member 16 is penetrated by the stud 15, the female thread 17 is attached to a screw formed on the head of the stud 15, and the flange member 16 and the placket 4 a sandwich the swing member 6 with the female thread 17. Fastened and fixed. Since the compression coil spring 18 is mounted between the flange member 16 and the bracket 4a of the horizontal member 9 in order to widen the gap, the work is performed when the holding frame 5 is mounted on the swing member 6. This eliminates the need for the user to increase the distance between the bracket 4a and the flange member 16 beyond the width of the swing member 6, which is convenient.

The swing member 6 has a screw hole 6b on its upper surface for screwing the bolt 10 with a knob. On the upper surface of the swinging member 6, there is formed a groove 6a capable of receiving a part of the second fastening means 11, that is, a part of the stud 15 and the compression coil spring 18.
Can also receive the horizontal member 9 of the holding frame 5. Therefore, even if the horizontal member 9 of the holding frame 5 is located behind the arm member 8, it does not interfere with the swing member 6, and the holding frame 5 is placed between the pair of swing members 6 that support the holding frame 5. Unsupported swing member 6
Can be arranged.

As shown in FIG. 2, while the sheet is being wound in the sheet split winding device, the touch roller supporting arm 1 falls down toward the winding roll R by gravity, and the individual touch rollers 2 are moved in the sheet width direction. It comes into contact with the outer circumference of the winding rolls R arranged in a line. When the number of divisions of the belt-shaped sheet changes and the touch roller 2 needs to be replaced accordingly,
With respect to the touch roller 2 which is not used in the next winding, the fixing of the holding frame 5 to the swinging member 6 by the fastening means 7 is released, that is, the knob-equipped bolt 10 as the first fastening means and FIG.
(A) Loosen the female screw body 17 in the second fastening means, and remove the touch roller 2 together with the holding frame 5 from the swing member 6.

Next, the rocking member 6 near the target position for supporting the touch roller newly according to the number of divisions of the new sheet is released from the movable member 13 by loosening the bolt 14 with the knob of the movable member 13. At the same time, the movable member 13 is fixed to the support guide member 4 with the bolt 14 with the knob again, and the movable member 13 is set at the target position, and the touch roller 2 having a required length is placed on the holding frame 5 on the swinging member 6. It is mounted and fastened and fixed by the bolts 14 with knobs and the female threaded body 17 of the fastening means 7. At this time, the swing member 6 not used in the next winding is held by the holding frame 5 of the touch roller 2 as shown in FIG.
Can be arranged between a pair of swinging members 6 that support.

FIGS. 5 and 6 show a touch roller device of a sheet dividing and winding device according to a second embodiment of the present invention. In FIG. 5, the winding rolls at the center of the apparatus are omitted, and only the winding rolls at both ends are shown. This touch roller device
In order to be able to adjust the contact pressure between the touch roller 2 and the take-up roll R, the support guide member 4 is rotatably mounted on the machine frame 22 via the bearing 21 and fixed to the end of the support guide member 4. The piston rod 24a of the hydraulic cylinder device 24 attached to the machine frame 22 is connected to the arm 23 with the joint 24b, and the support guide member 4 is connected by the hydraulic cylinder device 24.
Can be applied in both forward and reverse directions. Further, a spring device 25 is provided between the touch roller support arm 1 and the support guide member 4 so as to resiliently oppose the rotational force of the support guide member 4 with respect to the touch roller support arm 1.

The touch roller supporting arm 1 has a pair of arm members 8 and a horizontal member 9 similar to the touch roller supporting arm 1 shown in FIG.
A holding frame 5 and a fastening means 7. The support guide member 4 has a cylindrical outer peripheral surface. An engaging member 26 whose tip projects from the cylindrical outer peripheral surface and extends in the longitudinal direction is fixed to the support guide member 4, and the support guide member 4 is attached to the spring device 25 via the engaging member 26. Rotation is transmitted. The swing member 6 is mounted on the outer periphery of the support guide member 4 so as to be swingable and slidable in the longitudinal direction, and between the front end and both side surfaces of the engaging member 26 and the inner periphery of the swing member 6. A gap necessary to obtain a required swing angle of the swing member 6 is provided. Even if a difference in winding diameter occurs between the winding rolls R during winding due to uneven thickness of the sheet, the touch roller 2 can be elastically contacted with each winding roll R with a required pressing force. .

The spring device 25 is provided with a plurality of disc springs each having a plurality of disc springs mounted in the holes formed in the swinging member 6 toward both sides of the engagement member 26 so as to sandwich the engagement member 26 from both sides. A state in which the clamp lever 27 is tilted to the position shown by the solid line in FIG. 6, comprising two disc spring devices 25 a and 25 b, which can elastically resist the rotational force of the support guide member 4 with respect to the touch roller support arm 1 in both directions. Since the two disc spring devices 25a and 25b hold the engaging member 26 therebetween, the swinging member 6 does not move in the longitudinal direction of the support guide member 4, and the clamp lever 27 is shown by a chain line in FIG. When the shaft 28 is rotated in the posture, the disc spring device 25b is retracted from the engaging member 26 by the crank mechanism, and the swinging member 6 becomes movable on the support guide member 4.

FIGS. 7 to 10 show a touch roller device of a sheet dividing and winding device according to a third embodiment of the present invention. As shown in FIG. 7, the touch roller supporting arm 1 is provided with a plurality of swinging members 6 slidably and longitudinally slidably mounted on a holding frame 5 and a support guide member 4 extending parallel to the sheet width direction. And a bolt 31 as a fastening means for fixing the holding frame 5 to the swinging member 6. Holding frame 5
Is composed of a pair of arm members 8 for holding both ends of the center shaft 2a of the touch roller 2, and a horizontal member 9 fixed between the pair of arm members 8 by a known means such as a bolt or welding (not shown). The swing member 6 is swingably attached to a movable member 13 slidably mounted on the support guide member 4, and the movable member 13 can be fixed to the support guide member 4 at a required position by a bolt 14 with a knob. .

As shown in FIGS. 8 and 9, in the touch roller device, the support guide member 4 is supported at both ends by a pair of swing arms 32. The pair of swing arms 32 are fixedly mounted on a fulcrum shaft 33 rotatably mounted on the machine frame 22 shown in FIG. 8 via bearings 21, and apply a required contact pressure from a pressure fluid supply device (not shown). The supporting guide member 4 is wound by applying a rotational force to the fulcrum shaft 33 by pushing and pulling the arm 23 fixed to the end of the fulcrum shaft 33 by a hydraulic cylinder device 24 to which a pressurized fluid to be supplied is supplied. It can be made to approach and separate from the take-off roll R. Then, when the support guide member 4 approaches the take-up roll R, the touch roller 2 supported by the touch roller support arm 1 comes into contact with the outer periphery of the take-up roll R,
When the support guide member 4 is further moved closer to the take-up roll R, the touch roller support arm 1 tends to rotate clockwise with respect to the support guide member 4 in FIG. Accordingly, the fluid pressure cylinder device 24 can indirectly apply a rotational force to the touch roller support arm 1 to the support guide member 4 via the swing arm 32.

In general, the width of a take-up roll formed simultaneously in a sheet dividing take-up device can be variously changed. The touch roller 2 used is slightly longer than the width of the winding roll. When it is necessary to simultaneously take up winding rolls of different widths, in order to obtain a high-quality winding roll, the winding rolls are wound on the touch roller 2 so that the pressing force per unit width is substantially the same for each winding roll. Pressure must be applied to the roll. Therefore, it is necessary to use a spring device having a large spring repulsion force for the long touch roller 2 and a spring device having a small spring repulsion force for the short touch roller 2. However, when a spring device is provided between the swinging member 6 and the support guide member 4, the width of the take-up roll changes, and when the touch rollers 2 having different lengths are used at the same time, the touch roller 2 needs to be replaced. The spring device must be replaced accordingly. However, in the touch roller device shown in FIG.
The spring device 25 is mounted on the holding frame 5 of the touch roller supporting arm 1 and includes a spring having a strength corresponding to the length of the touch roller 2. A joining member 34 for transmitting a rotational force to the support arm 1 to the spring device 25 is mounted. Therefore, if the touch roller 2 is replaced, the spring device 25 as well as the holding frame 5 is replaced with one having a strength corresponding to the length of the touch roller, which is convenient and convenient.

The spring device 25 includes compression coil springs 35 and 36 on the upper and lower surfaces of the horizontal member 9 of the holding frame 5 as shown in FIG. The compression coil springs 35, 3
6 is penetrated and held by a bolt 38 passing through a hole 37 provided in the horizontal member 9, and the bolt 38 is
Through the screw, and screw a double nut 3
9 is attached to make it impossible to fall off. In addition, the support guide member 4
Has a rectangular cross section in the direction perpendicular to the longitudinal direction, the joining member 34 has a notch 34a that can be fitted to the upper and lower side surfaces of the support guide member 4, and the holding frame 5 When the fixing is performed, the notch of the joining member 34 is engaged with the support guide member 4, and the rotational force of the support guide member 4 can be transmitted to the spring device 25. The compression coil springs 35 and 36 for each touch roller 2 are selected such that the spring constant is approximately proportional to the length of each touch roller 2. Note that the support guide member 4 is not limited to a square cross section, and may have a circular cross section, for example. Instead of providing the notch in the joining member 34, for example, a groove extending in the longitudinal direction is provided in the support guide member 4, and the tip of the joining member is formed so as to fit this groove. By fitting the support guide member 4
May be engaged with the joining member.

According to the present invention, in the touch roller device, the swinging member is not mounted on the movable member so as to be swingable concentrically with the support guide member. May be swingably supported by a shaft provided in parallel with the shaft. Further, as shown in FIG. 9, instead of supporting the support guide member with a swing arm, both ends of the support arm are supported by a support slidable along a rail, and a thrust is applied to the support by a driving device. The mechanism may be adopted as a mechanism for giving a rotational force to the support guide member with respect to the touch roller support arm. Further, the driving device is not limited to the fluid pressure cylinder device, but may be a device in which the output shaft rotates.

[0029]

According to the first aspect of the present invention, it is possible to obtain a touch roller supporting device having high rigidity against torsion, so that the touch roller can be reliably supported while maintaining a predetermined posture, and the thickness can be uneven. Even when a sheet having a remarkable degree is divided and wound, occurrence of poor winding can be prevented. Moreover, since the touch roller and the rigid holding frame are integrated, when replacing the touch roller,
There is no need to attach a reinforcing material to increase the rigidity of the touch roller support arm. Since the swinging member has a holding frame, it is not necessary to extend from the support guide member to the touch roller, and the swinging member does not contact the touch roller. Therefore, the swinging member is used between a pair of swinging members supporting the holding frame. It is possible to arrange a swinging member that does not. Therefore, when the touch roller is replaced in accordance with the change of the sheet division width, the operation of changing the position of the swinging member is minimized, and the replacement time of the touch roller can be reduced. Therefore, according to the touch roller supporting arm of the present invention, the productivity of the sheet dividing and winding device can be greatly improved.

According to the second aspect of the present invention, a touch roller is provided on each of the take-up rolls arranged in a line at the take-up position so as to prevent poor take-up even if the sheet is extremely uneven in thickness. Provided is a touch roller device of a sheet dividing and winding device having a simple structure capable of making elastic contact, and easily replacing a touch roller with a change in a sheet division width in a short time. it can.

According to the third aspect of the present invention, the spring device and the joining member are mounted on the holding frame, so that when the touch roller is replaced, the spring device is also replaced at the same time.
Even when the winding rolls having different widths are simultaneously wound, the replacement work of the spring is not required and the labor can be saved.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of a touch roller device of a sheet dividing and winding device according to a first embodiment of the present invention.

FIG. 2 is a schematic side view of a touch roller device of the sheet split winding device shown in FIG.

FIG. 3 is a plan view showing a state where a holding frame is removed from a swinging member in the touch roller supporting arm shown in FIG. 1;

FIG. 4 is a schematic plan view of a touch roller supporting arm for explaining replacement of a touch roller.

FIG. 5 is a schematic plan view of a touch roller device of a sheet dividing and winding device according to a second embodiment of the present invention.

6 is a schematic side view of the touch roller device shown in FIG.

FIG. 7 is a plan view of a touch roller supporting arm according to a third embodiment of the present invention.

FIG. 8 is a schematic plan view of a touch roller device according to a third embodiment of the present invention.

FIG. 9 is a skeleton diagram schematically showing a side surface of the touch roller device shown in FIG. 8;

FIG. 10 is a side view showing a cross section of the spring device in FIG. 8;

FIG. 11 is a schematic plan view of a touch roller supporting arm of a conventional sheet split winding device.

FIG. 12 is a schematic side view of a touch roller supporting arm of a conventional sheet split winding device.

[Explanation of symbols]

 R take-up roll 1 touch roller support arm 2 touch roller 4 support guide member 5 holding frame 6 swing member 7 fastening means 8 arm member 9 lateral member 10 first fastening means 11 second fastening means 24 drive device 25 spring device 32 swing Moving arm 34 Joining member

Claims (3)

[Claims] 1. A holding frame comprising a pair of arm members for holding both ends of a center axis of a touch roller, a horizontal member fixed between the pair of arm members, and a support extending parallel to a sheet width direction. A touch of a sheet split winding device, comprising: a plurality of swinging members mounted on a guide member so as to be swingable and slidable in a longitudinal direction; and fastening means for fixing the holding frame to the swinging member. Roller support arm. 2. The touch roller supporting arm according to claim 1,
A support shaft provided in parallel with the touch roller and rotatable at a certain position or approachable to and away from the winding roll,
A drive device for applying a required rotational force at a fixed position to the support shaft or a required approaching / separating force to the take-up roll, and the touch roller support provided between the touch roller support arm and the support guide member. A spring device that resiliently opposes the rotational force of the support guide member with respect to the arm. 3. The mounting device according to claim 1, wherein the spring device is mounted on the holding frame of the touch roller supporting arm, and a joining member for transmitting a rotational force of the support guide member to the spring device is mounted on the holding frame. The touch roller device according to claim 2, wherein when the frame is fixed to the swinging member by the fastening means, one end of the joining member is engaged with the support guide member.