JP6887616B2 - Glass plate transfer device and glass plate manufacturing method - Google Patents

Description

The present invention relates to a glass plate transport device and a method for manufacturing a glass plate.

The glass plate manufacturing process includes a step of transporting the glass plate in a horizontal posture and a step of transporting the glass plate in an inclined posture. The horizontal posture is a posture in which the main surface of the glass plate is horizontal, and the inclined posture is a posture in which the main surface of the glass plate is tilted from the horizontal. If the glass plate is conveyed in an inclined posture, the treatment liquid adhering to the glass plate can be quickly dropped from the glass plate.

Normally, the glass plate is transported in a horizontal posture, so if there is a step of transporting in an inclined posture, the posture of the glass plate is changed between the horizontal posture and the tilted posture in which the tilt angle is different during the transport. It is necessary to change, and a device for that purpose has been proposed (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 9-226916

By the way, from the viewpoint of stable processing of the glass plate, the position of the glass plate in the direction orthogonal to the transport direction (hereinafter, also referred to as "width direction of the transport path") is constant at the time of transport. desired. However, when the posture of the glass plate is changed between the horizontal posture and the tilted posture, this position of the glass plate may shift, and this position may be different for each glass plate. It should be noted that such a problem is not limited to the case where the posture of the glass plate is changed between the horizontal posture and the tilted posture, and the posture of the glass plate is changed between the tilted posture and the tilted posture having different tilt angles. It can happen in some cases.

In view of the above circumstances, it is a technical subject to make the position of the glass plate in the width direction of the transport path constant after changing the posture of the glass plate.

The glass plate transport device according to the present invention, which was devised to solve the above problems, is a glass plate transport device that transports the glass plate in a predetermined transport direction, and transports the glass plate along the transport direction. A transport unit having a transport surface for transporting, carrying in the glass plate in the first posture, and carrying out the glass plate in a second posture having a different inclination angle with respect to the horizontal plane from the first posture, and the glass plate. Positioning that abuts on the end of the glass plate guided by the guide surface and a guide portion having a guide surface that receives from the transport surface and guides the glass plate along a direction orthogonal to the transport direction to position the glass plate. In order to transfer the glass plate from the transport surface to the guide surface, the guide surface is relatively above the transport surface. It is characterized by including a position changing portion that positions the guide surface relatively below the transfer surface in order to transfer the positioned glass plate from the guide surface to the transfer surface. To do.

In this configuration, the guide surface of the guide portion receives the glass plate from the transport surface and guides the glass plate along a direction orthogonal to the transport direction. Then, the positioning portion comes into contact with the end portion of the glass plate guided by the guide surface to position the glass plate. The guide direction of the glass plate by the guide surface of the guide portion is along the width direction of the transport path (by the transport portion) in a plan view. Therefore, when the glass plate guided by the guide surface of the guide portion and positioned on the positioning portion is delivered to the transport surface of the transport portion, the position of the glass plate in the width direction of the transport path is determined by the positioning portion. It will be. Therefore, when the transport unit carries out the glass plate in the second posture, the position of the glass plate in the width direction of the transport path becomes constant. That is, according to the glass plate transport device of the present invention, it is possible to make the position of the glass plate in the width direction of the transport path constant after the posture of the glass plate is changed. In addition, the transfer of the glass plate between the transport surface and the guide surface is performed by changing the relative position of the transport surface and the guide surface in the vertical direction without moving the glass plate in the transport direction. Therefore, the posture can be changed and the positioning can be performed quickly, and the installation space of the device can be reduced.

In the above configuration, the guide surface angle changing portion for changing the inclination angle of the guide surface is provided, and by changing the inclination angle of the guide surface, the glass plate received by the guide surface can be moved from the first posture to the above. You may change to the second posture.

With this configuration, it is possible to guide the glass plate to the positioning portion while changing the inclination angle of the guide surface. Therefore, the posture change and the positioning can be performed at the same time, and the time required for the posture change and the positioning of the glass plate can be further shortened.

In the above configuration, the transport surface angle changing portion and the guide surface angle changing portion are configured by a common angle changing portion, and the common angle changing portion is a support that shares the transport portion and the guide portion. The transport portion and the guide portion may be tilted by supporting with the support and tilting the support.

With this configuration, the mechanism for tilting the transport unit and the guide unit can be shared, so that the manufacturing cost can be reduced.

In the above configuration, the guide portion may be composed of a plurality of free rollers.

With this configuration, the tilted glass plate can be guided and positioned by the action of gravity. Therefore, the guide portion can be manufactured while suppressing the manufacturing cost, and the running cost of the device can be reduced.

In the above configuration, the first posture may be a horizontal posture and the second posture may be an inclined posture.

With this configuration, it is possible to quickly change the posture and position the glass plate between the end face processing and the cleaning process of the glass plate.

Further, the method for manufacturing a glass plate according to the present invention, which was devised to solve the above problems, is a method for manufacturing a glass plate including a step of transporting the glass plate in a predetermined transport direction, wherein the glass plate is used as described above. The step of carrying in the glass plate in the first posture by the transport portion having a transport surface for transporting along the transport direction, and by positioning the guide surface of the guide portion relatively above the transport surface, the above-mentioned The step of receiving the glass plate from the transport surface on the guide surface and guiding the glass plate along the direction orthogonal to the transport direction by the guide surface, and the end portion of the glass plate guided by the guide surface. The step of bringing the glass plate into contact with the positioning portion to position the glass plate and positioning the guide surface of the guide portion relatively below the transport surface allows the positioned glass plate to be moved from the guide surface to the above. It is characterized by including a step of delivering the glass plate to the transport surface and a step of carrying out the glass plate delivered to the transport surface in a second posture in which the inclination angle with respect to the horizontal plane is different from that of the first posture. And.

According to this configuration, substantially the same operation and effect as the first configuration of the glass plate transport device can be obtained.

As described above, according to the present invention, after changing the posture of the glass plate, the position of the glass plate in the width direction of the transport path can be made constant.

It is a schematic plan view which shows the manufacturing process of the glass plate in which the transfer device of the glass plate which concerns on embodiment of this invention is arranged. (A) is a cross-sectional view taken along the line XX of FIG. 1, (B) is a cross-sectional view taken along the line YY of FIG. 1, and (C) is a cross-sectional view taken along the line ZZ of FIG. It is a schematic plan view which shows the transfer device of the glass plate which concerns on embodiment of this invention. It is a schematic side view which shows the transfer device of the glass plate which concerns on embodiment of this invention. It is a schematic side view for demonstrating the operation of the transfer device of a glass plate. It is a schematic side view for demonstrating the operation of the transfer device of a glass plate. It is a schematic side view for demonstrating the operation of the transfer device of a glass plate. It is a schematic side view for demonstrating the operation of the transfer device of a glass plate. It is a schematic side view for demonstrating the operation of the transfer device of a glass plate. It is a schematic side view for demonstrating the operation of the transfer device of a glass plate. It is a schematic side view for demonstrating the operation of the transfer device of a glass plate. It is the schematic which shows the modification of the glass plate transfer apparatus, (A) and (B) are schematic plan views, and (C) is a schematic side view.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

FIG. 1 is a schematic plan view showing a manufacturing process of a glass plate on which the glass plate transport device 1 according to the embodiment of the present invention is arranged. The transport device 1 is arranged, for example, between the transport path R1 for end face processing and the transport path R2 for cleaning processing. As shown by the white arrows, the glass plate G is conveyed in the order of the end face processing transfer path R1, the transfer device 1, and the cleaning transfer path R2. The glass plate G is a rectangular flat plate, and the long side thereof is conveyed along the conveying direction.

As shown in FIG. 2A, the glass plate G is conveyed in the horizontal posture P1 on the end face processing transfer path R1. On the other hand, as shown in FIG. 2C, the glass plate G is conveyed in the inclined posture P2 on the cleaning transfer path R2. Then, as shown in FIG. 2B, the posture of the glass plate G is changed from the horizontal posture P1 (first posture) in the end face processing transport path R1 to the inclined posture in the cleaning transport path R2 in the transport device 1. It is changed to P2 (second posture).

In the end face processing transport path R1, the transport device 1, and the cleaning transport path R2, the transport direction of the glass plate G is along the horizontal direction. In the transport device 1 and the cleaning transport path R2, the glass plate G in the inclined posture P2 is tilted with respect to the horizontal plane H by rotating around an axis parallel to the transport direction. The inclination angle α is, for example, 4 ° to 6 °. In addition, in the description of the drawing, the inclination angle α is large for easy understanding (the same applies to the following drawings). In the end face processing transport path R1 and the transport device 1, the inclination angle α of the glass plate G in the horizontal posture P1 is 0 °.

As shown in FIGS. 3 and 4, the transport device 1 includes a belt conveyor 2 as a transport unit, a guide roller 3 as a guide unit, a positioning roller 4 as a positioning unit, and a support base as a support. 5 and the foundation 6 are the main components.

The belt conveyor 2 has a transport surface Sc that transports the glass plate G along the horizontal direction while supporting the main surface of the glass plate G from below. The belt conveyor 2 carries the glass plate G onto the belt conveyor 2 from the end face processing transport path R1. Further, the belt conveyor 2 carries out the glass plate G from above the belt conveyor 2 to the cleaning transport path R2. The transport direction by the belt conveyor 2 is along the horizontal direction, and in FIG. 3, it is a direction from left to right. A plurality of belt conveyors 2 are arranged at intervals in the width direction of the transport path of the glass plate G formed by the belt conveyor 2. The belt conveyor 2 is supported by the support base 5 via a support mechanism (not shown).

In the following description, unless otherwise specified, the transport direction means the direction in which the glass plate G is transported by the belt conveyor 2, and the transport path is the transport path of the glass plate G formed by the belt conveyor 2. It shall mean.

The guide roller 3 has a guide surface Sg that receives the glass plate G from the transport surface Sc and guides the glass plate G along a direction orthogonal to the transport direction (see FIG. 7). The guiding direction of the glass plate G by the guiding roller 3 is the direction from the bottom to the top in FIG. A plurality of guide rollers 3 are fixed to the rotation support shaft 3a at intervals in the transport direction. A plurality of rotary support shafts 3a are arranged between the plurality of belt conveyors 2. All the rotation support shafts 3a are arranged along the transport direction. Each of the rotary support shafts 3a is supported by the support base 5 via the first cylinder mechanism 3b. The guide roller 3 functions as a free roller by rotatably attaching the rotary support shaft 3a to the first cylinder mechanism 3b.

The guide roller 3 can be raised and lowered (moved along a direction perpendicular to the transport surface Sc) with respect to the support base 5 by the expansion and contraction operation of the first cylinder mechanism 3b. When the belt conveyor 2 conveys the glass plate G, the first cylinder mechanism 3b is in a shortened state, and the guide roller 3 is lowered to a retracted position where it does not come into contact with the glass plate G. On the other hand, when the guide roller 3 guides the glass plate G, the first cylinder mechanism 3b is in the extended state, and the guide roller 3 is raised to the guide position. At this time, the glass plate G pushed up by the guide roller 3 is separated from the belt conveyor 2. When the guide roller 3 is in the guide position, the guide surface Sg is in a position above the transport surface Sc. When the guide roller 3 is in the retracted position, the guide surface Sg is in a position below the transport surface Sc. The belt conveyor 2 does not move up and down with respect to the support base 5.

Since the expansion and contraction operations of all the first cylinder mechanisms 3b are synchronized, the glass plate G supported by the guide roller 3 maintains its posture when the guide roller 3 rises or falls. Move in parallel as it is.

The positioning roller 4 abuts on the end portion (end surface) of the glass plate G guided by the guide surface Sg of the guide roller 3 and positions the position in the direction orthogonal to the transport direction with respect to the glass plate G. A plurality of positioning rollers 4 are arranged at intervals along the transport direction. A plurality of support frames 4a to which a plurality of positioning rollers 4 are attached are arranged, and a second cylinder mechanism 4b is attached to each support frame 4a. The positioning roller 4 is rotatably attached to the support frame 4a and functions as a free roller. The rotation axis of the positioning roller 4 is perpendicular to the transport surface Sc. The support frame 4a is supported by the support base 5 via the second cylinder mechanism 4b.

The positioning roller 4 moves along the width direction of the transport path by the expansion / contraction operation of the second cylinder mechanism 4b, and retracts the positioning position near the belt conveyor 2 and the position farther from the belt conveyor 2 than the positioning position. Switch to position. The expansion and contraction operations of all the second cylinder mechanisms 4b are synchronized. The positioning roller 4 abuts on the end of the glass plate G at the positioning position to position the glass plate G. Since the plurality of positioning rollers 4 are arranged along the conveying direction, the end portion of the glass plate G with which the positioning rollers 4 at the positioning positions are in contact is arranged along the conveying direction.

When the guiding roller 3 guides the glass plate G, the second cylinder mechanism 4b is in the extended state, and the positioning roller 4 is in the positioning position. When the belt conveyor 2 conveys the glass plate G before positioning, the second cylinder mechanism 4b is in the shortened state, and the positioning roller 4 is in the retracted position. This makes it possible to prevent the glass plate G and the positioning roller 4 from interfering with each other when the belt conveyor 2 conveys the glass plate G before positioning. When the belt conveyor 2 conveys the glass plate G after positioning, the positioning roller 4 may be in the positioning position or in the retracted position.

The belt conveyor 2, the guide roller 3, and the positioning roller 4 are supported by a common support base 5. When the support base 5 is tilted, the belt conveyor 2, the guide roller 3, and the positioning roller 4 are tilted.

A support leg 5a for supporting the support base 5 is provided on the lower side of the support base 5. A foundation support portion 6a for supporting the support legs 5a is provided on the foundation portion 6. The support legs 5a are swingably attached to the foundation support portion 6a by a swing shaft 5b. The swing shaft 5b is parallel to the transport surface Sc. Further, a third cylinder mechanism 5c is mounted between the support base 5 and the foundation portion 6 so as to be swingable with respect to both. The axis of the swing of the third cylinder mechanism 5c with respect to the support base 5 and the foundation portion 6 is parallel to the transport surface Sc.

The support base 5 swings (rotates) around the swing shaft 5b due to the expansion and contraction operation of the third cylinder mechanism 5c. When the third cylinder mechanism 5c is in the shortened state, the support base 5 is not tilted and is in a horizontal posture, and the glass plate G supported by the belt conveyor 2 or the guide roller 3 is in a horizontal posture P1. When the third cylinder mechanism 5c is in the extended state, the support base 5 is in an inclined posture, and the glass plate G supported by the belt conveyor 2 or the guiding roller 3 is in an inclined posture P2.

The first cylinder mechanism 3b positions the guide surface Sg relatively above the transport surface Sc and positions the glass plate G in order to transfer the glass plate G from the transport surface Sc to the guide surface Sg. Is a position changing portion that positions the guide surface Sg relatively below the transport surface Sc in order to transfer the guide surface Sg from the guide surface Sg to the transport surface Sc.

Further, the support base 5, the support legs 5a, the swing shaft 5b, the third cylinder mechanism 5c, the foundation portion 6, and the foundation support portion 6a have a transport surface angle changing portion for changing the inclination angle of the transport surface Sc and a guide surface Sg. It is a guide surface angle changing part for changing the inclination angle of. That is, the transport surface angle changing portion and the guide surface angle changing portion are formed by a common angle changing portion (support base 5, support leg 5a, swing shaft 5b, third cylinder mechanism 5c, foundation portion 6, foundation support portion 6a). It is composed.

Next, the operation of the transport device 1 will be described.

First, as shown in FIG. 4, the support base 5 is in the horizontal position (the third cylinder mechanism 5c is in the shortened state), the guide roller 3 is in the retracted position (the first cylinder mechanism 3b is in the shortened state), and the positioning roller 4 Is the retracted position (the second cylinder mechanism 4b is in the shortened state).

Then, as shown in FIG. 5, the belt conveyor 2 is driven, and the glass plate G is carried onto the belt conveyor 2 from the end face processing transport path R1. Then, when the glass plate G is conveyed to a predetermined position on the belt conveyor 2, the belt conveyor 2 stops. In this state, the glass plate G is in the horizontal posture P1.

Next, as shown in FIG. 6, the first cylinder mechanism 3b is in the extended state, and the guide roller 3 is raised to the guide position. As a result, the glass plate G is pushed up (supported) by the guide roller 3 and separated from the belt conveyor 2. That is, the guide surface Sg of the guide roller 3 receives the glass plate G from the transport surface Sc of the belt conveyor 2. The glass plate G remains in the horizontal posture P1 when the guide roller 3 is raised and at the guide position. After the first cylinder mechanism 3b is extended, the second cylinder mechanism 4b is in the extended state (see the solid line arrow in FIG. 6), and the positioning roller 4 is in the positioning position. The extension of the first cylinder mechanism 3b and the extension of the second cylinder mechanism 4b may be performed at the same time.

Then, as shown in FIG. 7, the third cylinder mechanism 5c is in the extended state, and the support base 5 is tilted and is in the tilted posture. As a result, the glass plate G supported by the guide roller 3 becomes the inclined posture P2. That is, by changing the inclination angle of the guide surface Sg, the glass plate G received by the guide surface Sg is changed from the horizontal posture P1 to the inclined posture P2. The positioning roller 4 is arranged on the lower side of the inclination of the guide surface Sg.

Then, as shown in FIG. 8, the glass plate G moves on the guide roller 3 along the width direction of the transport path while being guided by the guide roller 3 due to the action of gravity. Then, the end portion of the glass plate G comes into contact with the positioning roller 4, and the glass plate G stops. Even in this state, the glass plate G is in the inclined posture P2.

After that, as shown in FIG. 9, the first cylinder mechanism 3b is in the shortened state, and the guide roller 3 is lowered to the retracted position. As a result, the glass plate G is in a state of being supported by the belt conveyor 2. That is, the positioned glass plate G is delivered from the guide surface Sg of the guide roller 3 to the transport surface Sc. Even when the glass plate G is delivered to the transport surface Sc, the end portion of the glass plate G is in contact with the positioning roller 4, and the glass plate G remains positioned. In this state, the glass plate G is in the inclined posture P2.

Then, as shown in FIG. 10, the belt conveyor 2 is driven, and the glass plate G is carried out from the belt conveyor 2 to the cleaning transport path R2. At this time, the end portion of the glass plate G slides with the positioning roller 4, but since the positioning roller 4 is a free roller, there is little friction and damage to the end portion of the glass plate G can be suppressed. When the glass plate G has been carried out to the cleaning transport path R2, the belt conveyor 2 is stopped.

Then, as shown in FIG. 11, the third cylinder mechanism 5c is in the shortened state, and the support base 5 returns to the horizontal posture. At the same time, the second cylinder mechanism 4b is shortened, and the positioning roller 4 moves to the retracted position. This completes a series of operations of the transport device 1, and the transport device 1 is in the initial state.

The transport device 1 configured as described above can enjoy the following effects.

The guide surface Sg of the guide roller 3 receives the glass plate G from the transfer surface Sc and guides the glass plate G along a direction orthogonal to the transfer direction. Then, the positioning roller 4 comes into contact with the end of the glass plate G guided by the guide surface Sg to position the glass plate G. The guide direction of the glass plate G by the guide surface Sg of the positioning roller 4 is along the width direction of the transport path in a plan view. Therefore, when the glass plate G guided by the guide surface Sg of the guide roller 3 and positioned on the positioning roller 4 is delivered to the transport surface Sc of the belt conveyor 2, the width direction of the transport path for the glass plate G The position of is determined by the positioning roller 4. Therefore, when the belt conveyor 2 carries out the glass plate G in the inclined posture P2, the position of the glass plate G in the width direction of the transport path becomes constant. That is, according to the glass plate transport device 1 of the present embodiment, after the posture of the glass plate G is changed between the horizontal posture P1 and the inclined posture P2, the position of the glass plate G in the width direction of the transport path. Can be made constant. In addition, the transfer of the glass plate G between the transport surface Sc and the guide surface Sg is performed by changing the relative positions of the transport surface Sc and the guide surface Sg in the vertical direction without moving the glass plate G in the transport direction. Do. Therefore, the posture can be changed and the positioning can be performed quickly, and the installation space of the device can be reduced.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of its technical idea. For example, in the above embodiment, all of the belt conveyor 2, all of the guide rollers 3, and all of the positioning rollers 4 are supported by the common support base 5, which is shown in FIG. 12 (A). As described above, it may be distributed and supported by a plurality of support bases 5. In this case, while the glass plate G is being carried out from the belt conveyor 2 to the cleaning transport path R2, the glass plate G is sequentially returned to the horizontal posture from the support base 5 that supports the belt conveyor 2 for which the transport of the glass plate G has been completed. If the glass plate G is carried onto the belt conveyor 2 from the end face processing transport path R1, the transport efficiency of the glass plate G can be improved.

Further, in the above embodiment, the belt conveyor 2 is used as the transport unit, but the present invention is not limited to this, and for example, as shown in FIG. 12B, the roller conveyor 7 may be used. In the illustrated example, the roller conveyor 7 is long in the width direction of the transport path, and is supported by a support base 5 separate from the guide roller 3.

Further, in the above embodiment, the belt conveyor 2 and the guide roller 3 are supported by a common support base 5, and are inclined due to the inclination of the support base 5, but the present invention is not limited to this. For example, as shown in FIG. 12C, the guide roller 3 may be supported by the base portion 6 via the first cylinder mechanism 3b. In this case, as shown in FIG. 12C, the guide roller 3 may be tilted by making the length of the first cylinder mechanism 3b in the extended state different. Further, in this case, as shown in FIG. 12C, the inclination angle of the guide surface Sg when guiding the glass plate G is different from the inclination angle of the transport surface Sc when the glass plate G is delivered. May be good.

Further, in the above embodiment, the movable positioning roller 4 is used as the positioning portion, but it is sufficient if the glass plate G guided by the guide portion can be received, and the positioning portion 8 shown in FIG. 12C is sufficient. It may not move, and may not be a roller.

Further, in the above embodiment, the received glass plate G is guided downward by the action of gravity in a state where the guide roller 3 composed of the free roller as the guide portion is tilted, but the drive mechanism is provided to the roller. The glass plate G may be guided toward the positioning portion in a horizontal posture by driving the roller in a state where the roller is not tilted.

Further, in the above embodiment, the guide roller 3 made of a free roller is used as the guide unit, but it suffices if the received glass plate G can be guided downward in the inclined state, for example, as the guide unit. , An air float stand or the like may be used.

Further, in the above embodiment, the support roller 3 is tilted after the guide roller 3 receives the glass plate G from the belt conveyor 2, but after the support roller 5 is tilted, the guide roller 3 is tilted by the belt conveyor 2. You may receive the glass plate G from.

Further, in the above embodiment, in the transport device 1, the horizontal posture P1 is changed to the inclined posture P2, but the inclined posture P2 may be changed to the horizontal posture P1. In that case, it is preferable that a pressing portion for pressing the glass plate G against the positioning roller 4 is provided while the positioning roller 4 is receiving the glass plate G. By this pressing portion, when the posture of the glass plate G is changed to the horizontal posture P1, it is possible to more reliably prevent the glass plate G from shifting to the side opposite to the positioning roller 4.

Further, in the above embodiment, in the transport device 1, the horizontal posture P1 is changed to the tilt posture P2, but in the transport device 1, the tilt posture and the tilt are different in the plane orthogonal to the transport direction with respect to the horizontal direction. The posture of the glass plate G may be changed depending on the posture.

Further, in the above embodiment, the shape of the glass plate G is a rectangular flat plate, but the shape is not limited to this, and for example, a circular glass plate or a curved glass plate may be used. Good.

1 Glass plate conveyor 2 Belt conveyor (conveyor)
3 Guidance roller (guidance section)
3b 1st cylinder mechanism (position change part)
4 Positioning roller (positioning part)
5 Support base (support body, transport surface angle change part, guide surface angle change part)
5a Support legs (conveying surface angle changing part, guide surface angle changing part)
5b Swing shaft (conveying surface angle changing part, guide surface angle changing part)
5c Third cylinder mechanism (conveying surface angle changing part, guide surface angle changing part)
6 Foundation part (conveying surface angle changing part, guide surface angle changing part)
6a Foundation support part (conveying surface angle changing part, guide surface angle changing part)
7 Roller conveyor (conveyor)
8 Positioning part G Glass plate P1 Horizontal posture (first posture)
P2 tilted posture (second posture)
Sc transport surface Sg guide surface

Claims (6)

A glass plate transport device that transports a glass plate in a predetermined transport direction.
It has a transport surface that transports the glass plate along the transport direction, carries in the glass plate in the first posture, and carries out the glass plate in a second posture in which the inclination angle with respect to the horizontal plane is different from that of the first posture. Transport section and
A guide portion having a guide surface that receives the glass plate from the transport surface and guides the glass plate along a direction orthogonal to the transport direction.
A positioning portion that comes into contact with the end portion of the glass plate guided by the guide surface and positions the glass plate, and a positioning portion.
A transport surface angle changing portion that changes the tilt angle of the transport surface, and a transport surface angle changing portion.
In order to transfer the glass plate from the transport surface to the guide surface, the guide surface is positioned relatively above the transport surface, and the positioned glass plate is moved from the guide surface to the transport surface. It is provided with a position changing portion that positions the guide surface relatively below the transport surface for delivery .
When the glass plate is carried in, the positioning portion is moved from a positioning position near the transport portion to a retracted position farther from the transport portion than the positioning position. Conveyor device. A guide surface angle changing portion for changing the inclination angle of the guide surface is provided.
The glass plate transporting device according to claim 1, wherein the glass plate received by the guide surface is changed from the first posture to the second posture by changing the inclination angle of the guide surface. .. The transport surface angle changing portion and the guide surface angle changing portion are composed of a common angle changing portion.
The common angle changing portion is characterized in that the transport portion and the guide portion are supported by a common support, and the transport surface and the guide surface are tilted by inclining the support. Item 2. The glass plate conveying device according to item 2. The glass plate conveying device according to claim 2 or 3, wherein the guide portion is composed of a plurality of free rollers. The glass plate transporting device according to claim 1, wherein the first posture is a horizontal posture and the second posture is an inclined posture. A method for manufacturing a glass plate, which includes a step of transporting the glass plate in a predetermined transport direction.
A step of carrying the glass plate in the first posture by a transport portion having a transport surface for transporting the glass plate along the transport direction.
By locating the guide surface of the guide portion relatively above the transport surface, the glass plate is received from the transport surface by the guide surface, and the glass plate is orthogonal to the transport direction by the guide surface. And the process of guiding along
A step of bringing the end portion of the glass plate guided by the guide surface into contact with the positioning portion to position the glass plate, and
A step of transferring the positioned glass plate from the guide surface to the transport surface by locating the guide surface of the guide portion relatively below the transport surface.
The transfer unit includes a step of carrying out the glass plate delivered to the transfer surface in a second posture in which the inclination angle with respect to the horizontal plane is different from that of the first posture .
When the glass plate is carried in, the positioning portion is moved from a positioning position near the transport portion to a retracted position farther from the transport portion than the positioning position. Manufacturing method.

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