JP7276654B2 - Glass plate manufacturing apparatus and manufacturing method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a glass plate manufacturing apparatus and manufacturing method.

As is well known, methods using down-draw methods such as the overflow down-draw method, slot down-draw method, redraw method, and methods using the float method are widely adopted as methods for manufacturing glass sheets. It is An example of the glass plate manufacturing process using these techniques is as follows.

First, a glass ribbon is continuously formed from molten glass. At this time, portions called ear portions having a greater thickness than the center portion are formed at both ends of the glass ribbon in the width direction. Next, by cutting the glass ribbon in the width direction for every predetermined length, the glass plate which becomes the base of the product glass plate is repeatedly cut out from the glass ribbon. Next, unnecessary parts (parts that do not become a product) including ear parts are cut and separated from these glass plates. After that, the glass plate from which unnecessary parts are separated is subjected to various processes such as grinding, polishing, and cleaning to produce a product glass plate.

Here, when manufacturing a glass plate using the down-draw method, the glass ribbon after molding is in a vertical posture (vertical posture). Therefore, from the viewpoint of saving planar space, etc., when a glass plate cut out from a vertical glass ribbon is transported in the vertical position and an unnecessary portion is cut off from the glass plate on the transport route. There is (see Patent Document 1).

JP 2017-206407 A

By the way, in the case of cutting and separating the unnecessary part from the glass plate in the vertical position under the above-described mode, from the viewpoint of improving the productivity of the product glass plate, etc., the unnecessary part after the separation can be efficiently removed. Required to be discarded. However, there is a problem that no technique has been established to satisfy such demands.

In view of the above circumstances, the technical object of the present invention is to enable efficient disposal of unnecessary parts separated by cutting from a vertically oriented glass plate.

The present invention for solving the above-mentioned problems is a glass plate manufacturing apparatus comprising a cutting chamber and a cutting mechanism for cutting and separating an unnecessary portion from a vertical glass plate in the cutting chamber. The cutting chamber has a waste port for discharging and discarding the unnecessary portion after cutting outside the chamber, and the waste port holds the first holding member It is characterized in that it is arranged so as to receive the unnecessary part after cutting that drops with the release of the .

In this manufacturing apparatus, the first holding member that holds the unnecessary part before and after cutting causes the unnecessary part after cutting to drop toward the disposal port, and accordingly the unnecessary part is discharged outside the cutting chamber and discarded. . As a result, it is possible to efficiently discard unnecessary parts. In addition, according to this manufacturing apparatus, the following effects can be obtained secondarily. That is, since the cutting chamber is located above the disposal destination of the unnecessary portion, for example, even if glass dust is generated due to the dropped unnecessary portion, the glass dust can be suppressed from entering the cutting chamber. . Therefore, it is advantageous in terms of improving the quality of the manufactured glass plate.

In the above configuration, it is preferable that a guide member for guiding the falling unnecessary part to the disposal port is provided, and the guide member extends vertically above the disposal port.

In this way, the provision of the guide member makes it easier to guide the unnecessary part to the disposal port, so that it is possible to perform more accurate disposal. In addition, since the guide member extends in the vertical direction above the disposal port, it is possible to save as much planar space as possible when installing equipment for disposal.

In the above configuration, the first holding member includes the suction portion that can suction and hold the unnecessary portion before and after cutting, and the guide member is downstream in the injection direction of the vacuum breaking gas that is injected from the suction portion when the suction and holding is released. It is preferably arranged at least on one side.

In this way, the unnecessary portion is quickly and reliably separated from the adsorption portion by the vacuum breaking gas that is jetted from the adsorption portion to the unnecessary portion when the adsorption/holding is released. In addition, since the unnecessary portion falls away from the suction portion, contact between the falling unnecessary portion and the suction portion can be preferably avoided. In addition, since the guide member is positioned on the downstream side in the direction in which the vacuum breaking gas is injected, the unnecessary portion is reliably guided to the disposal port.

In the above configuration, it is preferable to include a take-out mechanism for receiving the unnecessary part after cutting from the first holding member and taking it out of the cutting chamber.

With this configuration, the unnecessary portion after cutting can be taken out of the cutting chamber by the take-out mechanism. As a result, it is possible to evaluate the cut surface of the unnecessary portion, and to evaluate whether the cut state is good or bad. Furthermore, strength evaluation and management of unnecessary parts can also be performed.

In the above configuration, the take-out mechanism includes the second holding member capable of holding and releasing the cut unnecessary portion, and the second holding member is at the receiving position for receiving the cut unnecessary portion from the first holding member. and a retracted position spaced apart from the transfer path of the unnecessary portion by the first holding member.

With this configuration, the second holding member that has received the unnecessary portion from the first holding member moves to the retracted position, thereby removing the unnecessary portion (unnecessary portion that will be taken out of the cutting chamber later) from the unnecessary portion by the first holding member. It can be spaced apart from the transport path. Along with this, it becomes possible to newly carry in the following glass plate (the glass plate that is not separated from the unnecessary portion) into the cutting mechanism and cut the unnecessary portion. In other words, it is possible to take out the cut unnecessary portion out of the cutting chamber without interrupting the work of cutting and separating the unnecessary portion from the new glass plate.

In the above configuration, the cutting chamber has an outlet for taking out the unnecessary part after cutting to the outside of the room, the outlet is arranged at the terminal end of the vertically extending removal path in the cutting chamber, and the removal mechanism is configured to It is preferable to provide a third holding member capable of holding and releasing the unnecessary portion afterward, and at least one of the second holding member and the third holding member being capable of vertical movement along the extraction path.

With this configuration, the holding member, which is one of the second holding member and the third holding member that can move up and down along the extraction path, moves up and down while holding the unnecessary portion, thereby removing the unnecessary portion. It can be sent along a retrieval path. As a result, for example, even when the unnecessary part is elongated in the vertical direction, it is possible to sequentially cut out the parts of the unnecessary part that have reached the extraction port along with the feeding, so that a plurality of unnecessary parts can be obtained. It can be taken out while dividing into small parts.

In the above configuration, it is preferable that the retraction position and the extraction path are located above the disposal port.

In this way, even if unnecessary parts are broken and glass fragments are generated during the removal work, the dropped glass fragments are discharged out of the cutting chamber through the disposal port, so that the inside of the cutting chamber is preferably prevented from being contaminated. becomes possible.

Further, the present invention for solving the above problems is a glass plate manufacturing method including a cutting step of cutting and separating an unnecessary portion from a vertically oriented glass plate in a cutting chamber, wherein the cutting chamber is a cutting chamber. A first holding member that has a disposal port for discharging and discarding the unnecessary part after cutting to the outside of the room and can hold the unnecessary part before and after cutting is used, and the unnecessary part after cutting is held by the first holding member. It is characterized by executing a disposal step of dropping unnecessary parts after cutting toward a disposal port along with the release.

According to this manufacturing method, it is possible to similarly obtain the actions and effects already described in the description of the above glass plate manufacturing apparatus.

According to the manufacturing apparatus and manufacturing method for a glass plate according to the present invention, it is possible to efficiently dispose of unnecessary parts separated by cutting from a vertical glass plate.

It is sectional drawing which shows the manufacturing apparatus and manufacturing method of a glass plate. It is a top view which shows the manufacturing apparatus and manufacturing method of a glass plate. It is a perspective view which shows the aspect of the cutting process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the cutting process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the disposal process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate. It is a perspective view which shows the aspect of the extraction process using the manufacturing apparatus of a glass plate.

EMBODIMENT OF THE INVENTION Hereafter, the manufacturing apparatus and manufacturing method of the glass plate concerning embodiment of this invention are demonstrated, referring attached drawing. Note that the X directions, the Y directions, and the Z directions are the same among a plurality of drawings referred to in the description of the embodiments. Also, the X direction, the Y direction, and the Z direction are directions orthogonal to each other.

As shown in FIGS. 1 and 2, a glass plate manufacturing apparatus 1 (hereinafter simply referred to as manufacturing apparatus 1) is used to execute the method for manufacturing a glass sheet according to the present embodiment (hereinafter referred to as the present manufacturing method). Use

The manufacturing device 1 comprises a waste chamber 2 and a cutting chamber 3 . The manufacturing apparatus 1 is installed in a multi-story building, the disposal chamber 2 is located on the lower floor, and the cutting chamber 3 is located on the upper floor of the disposal chamber 2 . This manufacturing apparatus 1 is configured to cut and separate an unnecessary portion 4a that does not become a product from a glass plate 4 in a cutting chamber 3. As shown in FIG. Further, the manufacturing apparatus 1 is configured to (1) discard the unnecessary portion 4a after cutting into the disposal chamber 2 by dropping it, or (2) take it out of the cutting chamber 3 . Therefore, the manufacturing apparatus 1 can switch between an operation for discarding (hereinafter referred to as a discarding operation) and an operation for taking out (hereinafter referred to as an ejecting operation).

Here, in the following description, the unnecessary portion 4a discarded after cutting is referred to as discard target unnecessary portion 4x, and the unnecessary portion 4a taken out after cutting is referred to as extraction target unnecessary portion 4y. Further, explanations common to both 4x and 4y are simply referred to as an unnecessary part 4a without distinguishing between them.

The manufacturing apparatus 1 includes the disposal chamber 2 and the cutting chamber 3, and a conveying mechanism for conveying the glass plate 4 in the cutting chamber 3 in a vertical posture along a conveying route R1 (the width direction of the glass plate 4). 5, a cutting mechanism 6 for cutting and separating the unnecessary portion 4a from the vertical glass plate 4 in the cutting chamber 3, a first holding member 8 for holding the unnecessary portion 4a before and after cutting, and a first holding member. A take-out mechanism 7 for receiving the cut unnecessary part 4y to be taken out from the member 8 and taking it out of the cutting chamber 3 is provided as a main component.

Here, the glass plate 4 has a pair of unnecessary portions 4a, 4a and a product portion 4b which is different from the unnecessary portions 4a and becomes a product. The pair of unnecessary portions 4a, 4a are respectively the portion that becomes the leading portion and the trailing portion of the glass plate 4 during transportation, and the portion that exists between the pair of unnecessary portions 4a, 4a is the product portion 4b. be. Each of the pair of unnecessary portions 4a, 4a includes a portion called an ear portion having a greater thickness than other portions. However, this is not the only case, and the unnecessary portion 4a may not include the ear portion.

The cutting chamber 3 has a ceiling wall 9 , a floor wall 10 and side walls 11 . The floor wall 10 is formed with a disposal port 12 for discharging the cut unnecessary portion 4x to be discarded into the disposal chamber 2 for disposal. The cutting chamber 3 and the disposal chamber 2 are spatially connected through the disposal port 12 . The pressure inside the cutting chamber 3 is adjusted to be higher than that inside the disposal chamber 2 . The side wall 11 is formed with an outlet 13 for taking out the cut unnecessary part 4 y out of the cutting chamber 3 .

The disposal chamber 2 has a ceiling wall 14 , a floor wall 15 and side walls 16 . A box-shaped storage container 17 is arranged on the floor wall 15 to store the unnecessary parts 4x to be discarded that drop from the cutting chamber 3. As shown in FIG. This container 17 is arranged directly below the disposal port 12 .

The disposal port 12 opens at a position spaced apart from the conveying route R1 of the glass plate 4 in a plan view (viewed from the Z direction). Above the disposal port 12, a guide member 18 for guiding the falling unnecessary portion 4x to be discarded to the disposal port 12 is installed so as to extend in the vertical direction (Z direction). The guide member 18 has an L-shaped cross section perpendicular to the vertical direction, and its lower end is fixed along the edge of the disposal port 12 . The upper end of the guide member 18 is positioned at substantially the same height as the upper end of the unnecessary portion 4x to be discarded before falling. However, this is not the only option, and the upper end of the guide member 18 may be positioned lower or higher than the upper end of the discard target unnecessary portion 4x before falling.

The extraction port 13 is arranged at the terminal end of the extraction route R2 extending vertically in the cutting chamber 3 (the downstream end of the extraction route R2). The entire length of the take-out route R2 is located above the disposal port 12. As shown in FIG. Furthermore, the outlet 13 is positioned further above the upper end of the guide member 18 .

The conveying mechanism 5 includes a plurality of gripping members 19 that grip the upper side of the glass plate 4 (the upper side of the product portion 4b). The plurality of gripping members 19 are movable along rails (not shown) extending in the X direction. As a result, the glass plate 4 can be transported in the X direction while being suspended by the plurality of gripping members 19 .

The cutting mechanism 6 is arranged on the conveying route R1 of the glass plate 4, and the scribing mechanism 20 is arranged relatively upstream of the conveying route R1, and the cutting mechanism 6 is arranged relatively downstream of the conveying route R1. A folding mechanism 21 is provided.

The scribing mechanism 20 is a mechanism for forming a scribe line S serving as a starting point for cutting on the glass plate 4 carried in by the conveying mechanism 5 . The scribing mechanism 20 includes a scribing wheel 22 that forms a scribe line S while rolling on the surface of the glass plate 4 along the boundary L between the unnecessary portion 4a and the product portion 4b, and supports the glass plate 4 from the back side. and an auxiliary bar 23 that assists the formation of the scribe line S on the scribe wheel 22 by scribing. The glass plate 4 on which the scribe lines S have been formed is carried out from the scribing mechanism 20 by the transport mechanism 5 , transported downstream along the transport path R<b>1 , and transported into the breaking mechanism 21 .

The folding mechanism 21 is a mechanism for folding and cutting the glass plate 4 on which the scribe line S has been formed. This folding/splitting mechanism 21 comprises a pair of support bars 24, 24 that sandwich and support the vicinity of the scribe line S in the product portion 4b of the glass plate 4 from the front and back, and an unnecessary portion 4a of the glass plate 4 as indicated by an arrow A. A folding bar 25 is provided to bend the peripheral portion of the scribe line S so that the front surface side becomes convex as the scribe line S is pushed from the front surface side to the back surface side, thereby applying a bending stress. Although the details will be described later, the glass plate 4 (the glass plate 4 consisting of only the product portion 4b) after being separated from the unnecessary portion 4a avoids collision with the cut unnecessary portion 4a, and is conveyed along the transport path R1. downstream of the

The first holding member 8 is provided side by side with the folding mechanism 21 . The first holding member 8 is capable of holding the unnecessary portion 4a in the vertical position before and after cutting. As a result, the first holding member 8 holds the unnecessary portion 4a of the glass plate 4 carried into the folding mechanism 21 before the glass plate 4 is broken, and also holds the unnecessary portion 4a during and after the folding. It is configured to hold the portion 4a. During folding, the first holding member 8 turns about the scribe line S as the folding bar 25 pushes the unnecessary portion 4a.

For holding the unnecessary portion 4a, the first holding member 8 includes a plurality of suction portions 26 capable of holding the unnecessary portion 4a by suction. These plurality of suction portions 26 are arranged in a plurality of vertical stages. Each suction unit 26 is connected to negative pressure generating means (for example, a vacuum pump) (not shown), and can suck and hold the unnecessary portion 4a of the glass plate 4 from the back side as the negative pressure generating means operates. is. Furthermore, the adsorption section 26 is capable of injecting an adsorption breaking gas G (for example, air) as a vacuum breaking gas in a direction of flowing from the back side to the front side toward the unnecessary portion 4a when releasing the holding by adsorption. .

In addition, in this embodiment, the first holding member 8 is configured to hold the unnecessary portion 4a as it is sucked and held by the sucking portion 26, but it is not limited to this. For example, in order to hold the unnecessary part 4a, the first holding member 8 may be provided with a pair of claws for opening and closing, and the unnecessary part 4a may be gripped from the front and back by closing the pair of claws.

The operation of the first holding member 8 in folding will be described below.

As described above, the first holding member 8 turns around the scribe line S during folding. At that time, in order to prevent the separated unnecessary portion 4a from contacting the glass plate 4, the first holding member 8 moves from the surface side of the unnecessary portion 4a toward the back surface side, and moves along the transport route R1. Move away from the glass plate 4 . As a result, the unnecessary portion 4a is carried along the arrow B by the first holding member 8 without changing the height position of the unnecessary portion 4a, and the unnecessary portion 4a reaches the disposal position P1. The disposal position P1 is located right above the disposal port 12 and away from the transport route R1 of the glass plate 4 . When the manufacturing apparatus 1 performs a take-out operation, the disposal position P1 becomes the receiving position of the take-out mechanism 7 . Therefore, the operation of the manufacturing apparatus 1 is the same between when the manufacturing apparatus 1 performs the disposal operation and when it performs the take-out operation until the disposal position P1 is reached.

Next, when the manufacturing apparatus 1 performs the disposal operation, the suction and holding of the unnecessary portion 4x to be discarded by the suction unit 26 is released, and the unnecessary portion 4x to be discarded is directed toward the disposal port 12 while maintaining the vertical posture. let it drop. Further, when the suction holding is canceled, the suction unit 26 injects the adsorption destruction gas G (here, the gas flowing toward the guide member 18 side) toward the unnecessary portion 4x to be discarded, so that the unnecessary portion 4x to be discarded is indicated by an arrow. As shown in C, it is guided to the side of the guide member 18 arranged on the downstream side in the injection direction. Note that the first holding member 8 after the adsorption and holding by the adsorption portion 26 is released returns to the position before breaking and cutting the glass plate 4 , and a new glass plate 4 is carried into the folding mechanism 21 . wait until

On the other hand, when the manufacturing apparatus 1 performs the removal operation, the suction unit 26 waits for the unnecessary part 4y to be removed until the second holding member 27 provided in the removal mechanism 7 completes holding the unnecessary part 4y to be removed. to maintain adsorption retention. When the second holding member 27 completes holding the unnecessary portion 4y to be removed, the suction portion 26 releases the suction and holding of the unnecessary portion 4y to be removed. At this time, the adsorption unit 26 injects the adsorption destruction gas G to the unneeded part 4y to be removed, so that the adsorption and holding can be quickly released. Note that the first holding member 8 after the adsorption and holding by the adsorption portion 26 is released returns to the position before breaking and cutting the glass plate 4 , and a new glass plate 4 is carried into the folding mechanism 21 . wait until

The extraction mechanism 7 includes the second holding member 27 and the third holding member 28 (not shown in FIGS. 1 and 2, see FIGS. 8 to 16).

Each of the second holding member 27 and the third holding member 28 can hold and release the unneeded portion 4y to be removed in the vertical posture. Each of the holding members 27, 28 has a pair of claws 27a, 27a (28a, 28a) that can be opened and closed to hold and release the unneeded portion 4y. Here, in the following description, the closed state is a state in which the pair of claw portions 27a, 27a (28a, 28a) are closed for holding the unneeded portion 4y to be taken out (a state in which the unneeded portion 4y to be taken out is gripped from the front and back). , and the state opened for release of holding is referred to as an open state.

The second holding member 27 can turn around an axis extending in the vertical direction (Z direction), and can move between the receiving position P1 and the retracted position P2 as it turns ( See Figure 2). As a result, after the second holding member 27 receives the unnecessary part 4y to be removed from the first holding member 8 at the receiving position P1 (discarding position P1), the height position of the unnecessary part 4y to be removed is not changed. , carry the unneeded part 4y to be taken out along the arrow D to reach the retracted position P2. The retracted position P2 is located directly above the disposal port 12 and away from the conveying route R1 of the glass plate 4. As shown in FIG. The retreat position P2 is also the starting end of the extraction route R2 (the upstream end of the extraction route R2).

Here, in the present embodiment, both the receiving position P1 and the retracting position P2 are positioned apart from the conveying route R1 of the glass plate 4, but the present invention is not limited to this. For example, of the receiving position P1 and the retracting position P2, only the retracting position P2 may be positioned apart from the transport route R1 of the glass plate 4. From the viewpoint of improving the manufacturing efficiency by carrying out the glass plate 4 while performing the discarding operation and the taking-out operation, both the receiving position P1 (the discarding position P1) and the retracting position P2 are separated from the transport route R1 of the glass plate 4. preferably located at

The third holding member 28 is vertically movable along the extraction route R2. Specifically, the third holding member 28 can move between a stroke lower end, which is the lower limit of the vertical movement range, and a stroke upper end, which is the upper limit. An example of a mechanism for vertically moving the third holding member 28 is a cylinder mechanism. As a result, the third holding member 28, in a state in which the pair of claws 28a, 28a are closed to hold the unnecessary portion 4y to be removed, moves upward, moving the unnecessary portion 4y to the retracted position. It is lifted upward from P2 and sent to the downstream side of the extraction route R2.

Here, in this embodiment, unlike the third holding member 28, the second holding member 27 cannot move up and down and is always positioned at the same height. During the movement of the third holding member 28 holding the unneeded portion 4y to be removed, the second holding member 27 maintains the pair of claw portions 27a, 27a in an open state. As a modification of this embodiment, instead of the third holding member 28, the second holding member 27 may be configured to be vertically movable. It may be configured to be movable. That is, at least one of the second holding member 27 and the third holding member 28 should be able to move up and down along the extraction route R2.

A specific aspect of the present manufacturing method using the manufacturing apparatus 1 will be described below. In each drawing referred to in the following description, illustration of members other than those mainly functioning in the steps described in each drawing is omitted without notice. In addition, in this manufacturing method, the unnecessary portion 4a on the front side of the glass plate 4 and the unnecessary portion 4a on the rearmost side of the glass plate 4 during transportation are handled in the same manner. Description will be made focusing on only the portion 4a.

In this manufacturing method, first, a cutting step is performed in the cutting chamber 3 to cut and separate the unnecessary portion 4a from the vertical glass plate 4 .

When the glass plate 4 on which the scribe line S is already formed is carried into the folding mechanism 21 in executing the cutting process, the suction portion 26 of the first holding member 8 starts to suction and hold the unnecessary portion 4a. Further, as shown in FIG. 3, while supporting the vicinity of the scribe line S in the product portion 4b by a pair of support bars 24, 24, the unnecessary portion 4a is pushed into the rear surface side by the folding bar 25. As shown in FIG. As a result, the peripheral portion of the scribe line S is curved so that the surface side (the side on which the scribe line S is formed) is convex, and eventually, as shown in FIG. 4, the glass plate 4 is broken and cut. be. At this point, the unnecessary portion 4a is separated from the glass plate 4. As shown in FIG. A cutting process is completed by the above. The unnecessary part 4 a after cutting is still held by the first holding member 8 .

When the cutting process is completed, the discarding process of discarding the cut unnecessary part 4a as the discard target unnecessary part 4x in the discarding chamber 2, or the cutting unnecessary part 4a being taken out of the cutting chamber 3 as the target unnecessary part 4y. Perform any of the ejecting steps to eject. First, the case of executing the disposal process will be described.

In executing the disposal process, as shown in FIG. 5, first, the unnecessary portion 4x to be discarded held by the first holding member 8 is moved along the transfer route to the receiving position P1. Next, the first holding member 8 releases the suction holding of the discard target unnecessary portion 4 x by the suction portion 26 and injects the suction breaking gas G from the suction portion 26 in the direction toward the guide member 18 . Along with this, the unnecessary part 4x to be discarded is dropped toward the disposal port 12 while being guided toward the guide member 18 in the vertical posture. The unnecessary part 4x to be discarded discharged from the cutting chamber 3 to the discarding chamber 2 through the discarding port 12 in this way is accommodated in the container 17 arranged in the discarding chamber 2. FIG. The disposal process is completed by the above. The glass plate 4 after being separated from the discarded unnecessary portion 4x is carried out from the folding mechanism 21 after the discarded unnecessary portion 4x is moved to the receiving position P1 away from the transport route R1. conveyed downstream. As a result, collision between the discarded unnecessary portion 4x and the separated glass plate 4 is avoided.

Next, the case of executing the extraction process will be described. The unneeded part 4y to be taken out after being taken out is subjected to, for example, an inspection of the cut surface (the surface separated from the product part 4b), and the depth of the scribe line S, the uniformity of the depth, etc. are inspected. .

In executing the removal process, first, the unnecessary part 4y to be removed held by the first holding member 8 is moved to the receiving position P1 (discarding position P1) along the transfer path in the same manner as the discarding process described above. Let Next, as shown in FIG. 6, the second holding member 27 waiting at the receiving position P1 shifts the pair of claw portions 27a, 27a from the open state to the closed state to hold the unnecessary portion 4y to be removed. At this point, both the first holding member 8 and the second holding member 27 are in a state of holding the unnecessary part 4y to be removed. The glass plate 4 separated from the unneeded portion 4y to be taken out is carried out from the folding mechanism 21 after the unneeded portion 4y to be taken out has moved to the receiving position P1 away from the conveying route R1. conveyed downstream.

Next, as shown in FIG. 7, the first holding member 8 releases the suction holding of the unneeded portion 4y to be removed by the suction portion 26, and the suction destruction gas G is injected from the suction portion 26. Next, as shown in FIG. Along with this, the unnecessary portion 4 y to be removed is transferred from the first holding member 8 to the second holding member 27 . After that, the second holding member 27 that has received the unneeded portion 4y to be removed from the first holding member 8 moves from the receiving position P1 to the retracted position P2. As a result, the unneeded portion 4y to be removed reaches the starting end of the removal route R2.

Next, as shown in FIG. 8, while the second holding member 27 holds the unneeded portion 4y to be removed, the third holding member 28 waiting at the lower end of the stroke opens the pair of claw portions 28a, 28a. to a closed state to hold the unnecessary part 4y to be taken out. At this point, both the second holding member 27 and the third holding member 28 are in a state of holding the unnecessary part 4y to be removed.

Next, as shown in FIG. 9, the second holding member 27 shifts the pair of claw portions 27a, 27a from the closed state to the open state, and the second holding member 27 releases the holding of the unnecessary portion 4y. . Along with this, the unneeded portion 4 y to be removed is transferred from the second holding member 27 to the third holding member 28 . The second holding member 27 after delivering the unneeded part 4y to be removed keeps the pair of claws 27a, 27a in an open state and waits.

Next, as shown in FIG. 10, the third holding member 28 holding the unneeded part 4y to be taken out starts to move upward from the lower end of the stroke, lifts the unneeded part 4y to be taken out, and moves downstream of the unneeded part 4y to be taken out. send to the side Then, when the third holding member 28 reaches the stroke upper end, the movement stops, and the upper part of the unneeded part 4 y to be extracted faces the extraction port 13 . That is, the upper portion of the unneeded portion 4y to be removed reaches the end of the removal route R2. A worker waits outside the extraction port 13 (outside the cutting chamber 3) to cut the unnecessary part 4y to be extracted into a plurality of small parts.

Next, as shown in FIG. 11, the second holding member 27, which has been on standby with the pair of claw portions 27a and 27a in the open state, again shifts the pair of claw portions 27a and 27a from the open state to the closed state, The second holding member 27 holds the unnecessary part 4y to be removed. As a result, both the second holding member 27 and the third holding member 28 again hold the unnecessary portion 4y to be removed.

Next, as shown in FIG. 12, the third holding member 28 shifts the pair of claw portions 28a, 28a from the closed state to the open state, and the third holding member 28 releases the holding of the unnecessary portion 4y. . Along with this, the unnecessary part 4 y to be removed is transferred from the third holding member 28 to the second holding member 27 . The third holding member 28 after delivering the unneeded portion 4y to be removed keeps the pair of claw portions 28a, 28a in an open state.

Next, as shown in FIG. 13, the third holding member 28 moves downward from the stroke upper end to the stroke lower end while maintaining the pair of claws 28a, 28a in the open state. After that, as shown in FIG. 14, the third holding member 28 reaches the lower end of the stroke, and the pair of claw portions 28a, 28a again shifts from the open state to the closed state, and the third holding member 28 moves the unnecessary part to be removed. Hold 4y. As a result, both the second holding member 27 and the third holding member 28 again hold the unnecessary portion 4y to be removed.

Next, as shown in FIG. 15, an operator waiting outside the extraction port 13 cuts the upper portion of the unnecessary portion 4y to be extracted through the extraction port 13, and uses the cut upper portion as the target portion 4ya. Collect. This cutting of the upper portion is performed by, for example, forming a scribe line along the width direction (X direction) of the undesired portion 4y to be removed, and breaking and cutting the undesired portion 4y along the scribe line. After cutting, the part to be collected 4ya is taken out of the cutting chamber 3 through the outlet 13 by the operator.

After that, as shown in FIG. 16, the pair of claws 27a, 27a is moved from the closed state to the open state again, and the second holding member 27 releases the holding of the unnecessary part 4y to be taken out, and the third holding member 28 is opened. up from the bottom of the stroke to the top of the stroke. Along with this, the third holding member 28 lifts the unneeded part 4 y to be taken out again, and the upper part faces the take-out port 13 . After that, the operation described above is repeated by the second holding member 27, the third holding member 28, and the operator, so that the upper part of the unnecessary part 4y to be extracted is repeatedly cut out as the part 4ya to be collected. As a result, the entire unneeded portion 4y to be removed is finally divided into a plurality of small portions (a plurality of sampling portions 4ya) and then removed from the outlet 13. FIG. The extraction process is completed by the above.

Here, the cutting step and the discarding step are preferably performed in parallel with the removing step. More specifically, in the extraction step, the first holding member 8 after transferring the unneeded part 4y to be taken out to the second holding member 27 is in a state where it can again hold and release the unneeded part 4x to be discarded. becomes. Therefore, after the delivery, the second holding member 27, the third holding member 28, and the operator continue the remaining work in the taking-out process, and at the same time, using the first holding member 8, a new glass plate 4 is prepared. It is possible to perform a cutting step and a discarding step for the .

Furthermore, in the middle of the extraction process, for example, when a crack occurs in the unneeded part 4y to be extracted, or when a crack is found, the second holding member 27 and the third holding member 28 , the holding of the unnecessary part 4y to be removed may be released, and the unnecessary part 4y to be removed may be dropped. That is, the extraction process may be stopped. At this time, since the removal route R2 is located above the disposal port 12, the removed unnecessary portion 4y is discharged through the disposal port 12 into the disposal chamber 2 and discarded.

Main functions and effects of the manufacturing apparatus 1 and the present manufacturing method will be described below.

According to the manufacturing apparatus 1 and the present manufacturing method, the first holding member 8 that holds the unnecessary portion 4a before and after cutting drops the unnecessary portion 4a after cutting toward the disposal port 12 as the unnecessary portion 4x to be discarded, Along with this, the discard target unnecessary portion 4x is discharged outside the cutting chamber 3 and discarded. As a result, it becomes possible to efficiently discard the discard target unnecessary portion 4x.

Here, the glass plate manufacturing apparatus and manufacturing method according to the present invention are not limited to the configurations and aspects described in the above embodiments. For example, in the above-described embodiment, the operator cuts the upper portion of the unneeded portion 4y to separate it, but the upper portion may be cut using a known cutting device. In the above embodiment, the second holding member 27 (third holding member 28) has a pair of claw portions 27a, 27a (28a, 28a) for holding the unneeded portion 4y to be taken out. Yes, but not limited to this. The second holding member 27 (third holding member 28) may be configured to have a suction portion for holding the unnecessary portion 4y to be extracted.

In the above-described embodiment, the unnecessary portion 4a on the front side of the glass plate 4 and the unnecessary portion 4a on the rearmost side of the glass plate 4 are dropped as the holding of the first holding member 8 is released. A disposal port 12 is provided for receiving the unnecessary portion 4a that is to be used as the waste portion 4a. good too.

In the above-described embodiment, the take-out mechanism 7 is provided for each of the unnecessary portion 4a on the front side of the glass plate 4 and the unnecessary portion 4a on the rearmost side during transportation. Only one of the unnecessary portion 4a and the rearmost unnecessary portion 4a may be taken out by the take-out mechanism 7. FIG.

REFERENCE SIGNS LIST 1 glass plate manufacturing apparatus 3 cutting chamber 4 glass plate 4a unnecessary portion 4x unnecessary portion to be discarded 4y unnecessary portion to be removed 4ya portion to be extracted 6 cutting mechanism 7 removal mechanism 8 first holding member 12 disposal port 13 removal port 18 guide member 26 Adsorption part 27 Second holding member 28 Third holding member B Transfer path G Adsorption destruction gas P1 Receiving position (disposal position)
P2 Retreat position R1 Conveyance path R2 Extraction path

Claims (7)

A glass plate manufacturing apparatus comprising a cutting chamber and a cutting mechanism for cutting and separating an unnecessary portion from a vertical glass plate in the cutting chamber,
A first holding member capable of holding the unnecessary portion before and after cutting,
The cutting chamber has a disposal port for discharging and discarding the unnecessary portion after cutting to the outside of the chamber,
The disposal port is arranged to receive the unnecessary portion after cutting that falls as the holding of the first holding member is released,
An apparatus for manufacturing a glass sheet, comprising a take-out mechanism for receiving the unnecessary part after cutting from the first holding member and taking it out of the cutting chamber. a guide member for guiding the falling unnecessary part to the disposal port;
2. The apparatus for manufacturing a glass sheet according to claim 1, wherein the guide member extends vertically above the disposal port. The first holding member has a suction portion capable of suction-holding the unnecessary portion before and after cutting,
3. The apparatus for manufacturing a glass sheet according to claim 2, wherein the guide member is arranged at least downstream in a direction in which the vacuum breaking gas is jetted from the suction portion when releasing the suction and holding. The take-out mechanism includes a second holding member capable of holding and releasing the unnecessary portion after cutting,
The second holding member is movable between a receiving position for receiving the cut unnecessary portion from the first holding member and a retracted position separated from a transfer path of the unnecessary portion by the first holding member. The apparatus for manufacturing a glass plate according to any one of claims 1 to 3, characterized in that: The cutting chamber has an outlet for taking out the unnecessary part after cutting to the outside of the room,
the extraction port is arranged at the end of an extraction path extending vertically in the cutting chamber;
The take-out mechanism includes a third holding member capable of holding and releasing the unnecessary portion after cutting,
5. The apparatus for manufacturing a glass plate according to claim 4, wherein at least one of the second holding member and the third holding member is vertically movable along the extraction path. 6. The apparatus for manufacturing a glass sheet according to claim 5, wherein the retracted position and the take-out path are positioned above the disposal port. A method for manufacturing a glass plate comprising a cutting step of cutting and separating an unnecessary portion from a vertically oriented glass plate in a cutting chamber,
The cutting chamber has a disposal port for discharging and discarding the unnecessary portion after cutting to the outside of the chamber,
A first holding member capable of holding the unnecessary part before and after cutting is used, and the unnecessary part after cutting is moved to the disposal port as the holding of the unnecessary part after cutting by the first holding member is released. Execute a discard process that drops towards
A method for manufacturing a glass plate, comprising : performing a removing step of receiving the cut unnecessary portion from the first holding member and removing it from the cutting chamber using a removing mechanism.

Images