WO2019003782A1

WO2019003782A1 - Method for manufacturing glass plate, and device for manufacturing glass plate

Info

Publication number: WO2019003782A1
Application number: PCT/JP2018/020826
Authority: WO
Inventors: 真澄伊吹; 伸広森
Original assignee: 日本電気硝子株式会社
Priority date: 2017-06-26
Filing date: 2018-05-30
Publication date: 2019-01-03
Also published as: JP2019006641A; TW201904715A; CN211226913U; JP6861949B2

Abstract

A device 1 for manufacturing a glass plate comprises a conveyance mechanism 2 that conveys a glass plate G in the sequence of: an end surface machining step for machining the end surfaces of the glass plate G in a horizontal orientation while a liquid is supplied; an orientation alteration step for altering the orientation of the horizontally oriented glass plate G to an inclined orientation P2; and a washing step for washing the glass plate G in the inclined orientation P2. The device 1 for manufacturing a glass plate comprises a sampling mechanism 3 for holding the glass plate G in the inclined orientation P2 between the orientation alteration step and the cleaning step, and transferring the glass plate G from the conveyance mechanism 2 to a prescribed placement surface 4a.

Description

Method of manufacturing glass plate and manufacturing apparatus of glass plate

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

In recent years, for glass plates (glass substrates) used for flat panel displays such as liquid crystal display devices and organic EL display devices, for example, requirements required by customers become increasingly strict, and it becomes indispensable to carry out various quality control There is.

Also, on the other hand, the outer size of the glass plate is mainly of a large size of, for example, 1000 mm × 1000 mm or more in order to realize higher manufacturing efficiency for reasons such as cost reduction.

Under such circumstances, in the glass plate manufacturing process, for example, by performing a sampling inspection on the processed glass plate after completion of each process, the quality of the glass substrate as a final product can be improved. It was

And in order to perform this sampling inspection, the apparatus for extracting a glass plate from the conveyance mechanism which consists of belt conveyors etc., for example is proposed (for example, refer patent document 1).

China Utility Model Publication No. 205771976 Specification

By the way, in order to carry out the end face processing step of the glass sheet while supplying the liquid, the liquid adheres to the glass sheet which has passed the end face processing step. In the case of a thin glass plate having a large thickness and a large surface area, the weight of the liquid attached to the glass plate causes the glass plate to be bent and easily broken. Therefore, when extracting a glass plate after end face processing, it is desirable to reduce the amount of liquid adhering to the glass plate. The liquid supplied in the end face processing step includes, for example, a cleaning liquid, a grinding liquid, and a polishing liquid. The cleaning solution is supplied to clean the platen or the like holding the glass plate by end processing, and for example, water or a liquid obtained by adding a detergent to water is used as the cleaning solution. The grinding fluid and the polishing fluid are supplied mainly for the purpose of cooling the grindstone and removing chips, and for the grinding fluid and the polishing fluid, for example, water or a liquid obtained by adding a lubricant to water or the like is used.

This invention makes it a technical subject to reduce the liquid quantity adhering to the glass plate extracted after the end surface process process in the manufacturing process of a glass plate in view of the said situation.

The manufacturing method of the glass plate according to the present invention invented for solving the above problems is an end face processing step of processing an end face of the glass plate in horizontal posture while supplying liquid, posture in which the glass plate in horizontal posture is inclined. It is a manufacturing method of the glass plate which conveys a glass plate by a conveyance mechanism in order of a posture change process to change, and a washing process which cleans a glass plate of inclination posture, and it is a extraction mechanism between a posture change process and a washing process. And holding the glass plate in an inclined posture, and transferring the sheet from the transfer mechanism to a predetermined mounting surface.

In this configuration, the glass plate is held in an inclined posture by the extraction mechanism and transferred from the transport mechanism to the mounting surface. Since the inclination angle of the glass plate with respect to the horizontal plane is larger than the horizontal attitude, the liquid adhering to the glass plate is likely to drop from the glass plate in the process of transferring the glass plate by the extraction mechanism. Accordingly, the amount of liquid adhering to the removed glass plate can be reduced.

In the above configuration, the placement surface may be disposed on the side of the transport mechanism at the upper side of the inclined posture.

With this configuration, when moving the glass plate from the top of the transport mechanism onto the placement surface, the glass plate is moved to the side of the inclined upper side of the inclined posture. Therefore, an inertial force acts on the liquid so that the liquid deposited on the glass plate moves downward in the inclined posture, and the liquid is easily detached from the top of the glass plate.

In the above configuration, the placement surface may be disposed on the side of the lower side of the inclined posture of the transport mechanism.

With this configuration, when moving the glass plate from the top of the transport mechanism to the top of the placement surface, the need for the glass plate to pass over the inclined upper side portion of the transport mechanism is eliminated. can do.

In the above configuration, the extraction mechanism may adsorb the glass plate with a plurality of suction pads.

With this configuration, it is possible to stably hold a large size glass plate by the extraction mechanism. In addition, the glass plate can be easily held and released.

In the above configuration, each of the plurality of suction pads is connected to the vacuum system through the valve portion, and the valve portion automatically opens in the state where the suction pad is in contact with the glass plate, and the suction pad is formed on the glass plate You may close in the state which is not contacting.

If it is this composition, when it tries to make a suction pad adsorb to a glass plate (broken glass plate) which a part lacks, or a glass plate of a small size, it will connect to a suction pad located in a place where a glass plate does not exist The valve is closed to maintain the degree of vacuum of the vacuum system. And since the valve part connected to the adsorption pad located in the place where a glass plate exists opens, an adsorption pad adsorbs | sucks to a glass plate reliably. Therefore, a partially missing glass plate or a glass plate of a small size can be reliably adsorbed and held by the suction pad. Moreover, when making a small size glass plate adsorb a suction pad, the operation which closes manually the valve part connected to the suction pad located in the place where a glass plate does not exist previously becomes unnecessary.

In the above configuration, the plurality of suction pads may be arranged to be suctioned to the peripheral portion of the glass plate of a plurality of types of sizes.

With this configuration, the peripheral portion of the glass plate is adsorbed even when any of the plurality of types of glass plates is adsorbed, so that the glass plates of the plurality of sizes can be reliably held. And since the place which a suction pad adsorbs is a peripheral part of a glass board, a glass board can be adsorbed and held stably with a small number of suction pads.

In the above configuration, the mounting surface may be an inclined surface on which the glass plate can be mounted in an inclined posture.

With this configuration, the liquid adhering to the glass plate can be easily detached from the glass plate on the mounting surface.

In the above configuration, the mounting surface is provided on the carriage, the carriage is configured to be able to change the angle of the mounting surface, and the sensor detects the presence or absence of the carriage and the appropriateness of the inclination angle of the mounting surface. It is also good.

With this configuration, the glass plate can be placed on the mounting surface of the carriage after the presence of the carriage is detected by the sensor. Moreover, after the sensor detects that the inclination angle of the mounting surface of the carriage is appropriate, the glass plate can be mounted on the mounting surface of the carriage. Therefore, the glass plate can be reliably mounted on the mounting surface of the carriage. In addition, the extraction step is carried out in the absence of a carriage or in the state where the inclination angle of the mounting surface is inappropriate, and breakage of the extracted glass plate or damage to the apparatus can be prevented.

In the above-described configuration, the pan for supporting the end face of the glass plate may be provided on the side of the mounting surface on the lower side of the placement surface, and the weir may be disposed directly below the pan. In this case, the liquid desorbed from the glass plate may be supplied to the crucible by being discharged from a plurality of through holes of the pan and dropped.

With this configuration, the remaining liquid can be removed from the glass plate, and the removed liquid can be collected with a crucible.

In the above configuration, a saucer for supporting the end face of the glass plate may be provided on the lower side of the placement surface, and a discharge port for discharging the liquid may be disposed. In this case, the liquid desorbed from the glass plate may flow along the pan and be led to the outlet.

With this configuration, the remaining liquid can be removed by the outlet while being collected by the receiving plate.

Moreover, the manufacturing apparatus of the glass plate which concerns on this invention invented in order to solve the said subject processes the end surface process process of processing the end surface of the glass plate of horizontal posture, supplying a liquid, and inclines the glass plate of horizontal posture. An apparatus for manufacturing a glass plate having a transport mechanism for transporting the glass plate in the order of a posture changing step of changing the posture and a cleaning step of cleaning the glass plate in the inclined posture, between the posture changing step and the cleaning step And an extraction mechanism for holding the glass plate in an inclined posture and transferring the glass plate from the transfer mechanism to a predetermined mounting surface.

According to this configuration, it is possible to obtain substantially the same function and effect as the first configuration of the method of manufacturing a glass sheet.

As described above, according to the present invention, in the glass plate manufacturing process, the amount of liquid adhering to the glass plate removed after the end face processing process can be reduced.

It is a schematic plan view which shows the principal part of the manufacturing apparatus of the glass plate which concerns on embodiment of this invention. FIG. 2 is a cross-sectional view taken along the line XX in FIG. FIG. 2 is a cross-sectional view taken along line YY of FIG. FIG. 2 is a cross-sectional view taken along line ZZ in FIG. It is a schematic side view which shows the extraction mechanism of a glass plate. It is the schematic which shows arrangement | positioning of a suction pad. It is a schematic diagram explaining piping regarding a suction pad. It is a schematic side view for demonstrating the operation | movement of the extraction mechanism of a glass plate. It is a schematic side view for demonstrating the operation | movement of the extraction mechanism of a glass plate. It is a schematic side view for demonstrating the operation | movement of the extraction mechanism of a glass plate. It is a schematic side view for demonstrating the operation | movement of the extraction mechanism of a glass plate. It is a schematic side view for demonstrating the operation | movement of the extraction mechanism of a glass plate. It is a schematic side view for demonstrating the operation | movement of the extraction mechanism of a glass plate. It is a schematic side view for demonstrating the operation | movement of the extraction mechanism of a glass plate. It is a schematic side view for demonstrating the operation | movement of the extraction mechanism of a glass plate. It is a schematic side view for demonstrating the operation | movement of the extraction mechanism of a glass plate. It is a schematic side view of the 1st modification of the extraction mechanism of a glass plate. It is a schematic side view of the 2nd modification of the extraction mechanism of a glass plate. It is a schematic plan view of the mounting part of a 2nd modification.

Hereinafter, an embodiment for carrying out the present invention will be described based on the drawings.

As shown in FIG. 1, the manufacturing apparatus 1 of the glass plate used by the manufacturing method of the glass plate which concerns on embodiment of this invention is equipped with the conveyance mechanism 2 which conveys the glass plate G in a predetermined | prescribed conveyance direction. The transport mechanism 2 is configured by, for example, a belt conveyor or a roller conveyor. The transport mechanism 2 has a first transport mechanism 2a, a second transport mechanism 2b, and a third transport mechanism 2c. As indicated by the white arrows, the glass sheet G is transported in the order of the first transport mechanism 2a, the second transport mechanism 2b, and the third transport mechanism 2c. The glass plate G is a rectangular flat plate, and is transported with its side (for example, the long side) along the transport direction.

In the middle of the conveyance path of the first conveyance mechanism 2a, an end surface processing step S1 of processing the end surface of the glass plate G while supplying the liquid is performed. In the middle of the transport path of the third transport mechanism 2c, a cleaning step S3 of cleaning the glass sheet G using a cleaning liquid is performed on the glass sheet G. The end face processing and cleaning may be performed while conveying the glass plate G, or may be performed in a state in which the conveyance is stopped.

As shown to FIG. 2A, the glass plate G is conveyed by the horizontal attitude | position P1 in the 1st conveyance mechanism 2a. On the other hand, as shown to FIG. 2C, the glass plate G is conveyed by the inclination attitude | position P2 in the 3rd conveyance mechanism 2c. Then, as shown in FIG. 2B, the posture of the glass plate G is changed from the horizontal posture P1 in the first conveyance mechanism 2a to the inclined posture P2 in the third conveyance mechanism 2c in the second conveyance mechanism 2b. That is, with respect to the glass plate G conveyed by the second conveyance mechanism 2b, an attitude change step S2 of changing the attitude of the glass plate G from the horizontal attitude P1 to the inclined attitude P2 is performed. In the third transport mechanism 2c, since the glass sheet G has the inclined posture P2, the cleaning liquid used in the cleaning step S3 falls from the glass sheet G quickly.

In the first transport mechanism 2a, the second transport mechanism 2b, and the third transport mechanism 2c, the transport direction of the glass sheet G is in the horizontal direction. In the second transport mechanism 2b and the third transport mechanism 2c, 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 °. Note that, in order to facilitate understanding of the description of the drawings, the inclination angle α is larger (the same applies to the following drawings). In the first transport mechanism 2a and the second transport mechanism 2b, the inclination angle α of the glass plate G in the horizontal posture P1 is 0 °.

Furthermore, as shown in FIG. 3, the manufacturing apparatus 1 is extracted by the extracting mechanism 3 and the extracting mechanism 3, which extracts the glass sheet G from the second transport mechanism 2 b between the posture changing step S2 and the cleaning step S3. And a carriage 4 on which the glass plate G is placed. In other words, between the posture change process S2 and the cleaning process S3, a extraction process is performed in which the glass plate G is held by the extraction mechanism 3 and transferred from the second transport mechanism 2b to the carriage 4. FIG. 3 is a side view seen in the same direction as the arrow of the YY line in FIG. Further, for convenience, the side of the second transport mechanism 2b is referred to as the front side, and the side of the carriage 4 is referred to as the rear side.

The second transport mechanism 2b is supported by the support mechanism 2d. Then, the second transport mechanism 2b itself changes from the horizontal position to the inclined position, thereby changing the glass sheet G from the horizontal position P1 to the inclined position P2. A mechanism for changing the attitude of the second transport mechanism 2b can be manufactured by a known technique (see, for example, JP-A-9-226916).

The extraction mechanism 3 has a gantry 5, a longitudinal movement unit 6, a vertical movement unit 7, and a suction pad 8. The rack 5 is provided with a rail portion 5a extending in the front-rear direction (lateral direction), and the front-rear moving portion 6 is configured to move forward and backward along the rail portion 5a. The vertical movement portion 7 is supported by the longitudinal movement portion 6 via the support portion 7a, and the vertical movement portion 7 is configured to move vertically by the vertical movement of the support portion 7a relative to the longitudinal movement portion 6. It is done.

A plurality of suction pads 8 are disposed below the vertical movement unit 7. The suction pad 8 is for adsorbing to the glass plate G and holding the glass plate G by suction. The vertically moving portion 7 is in the inclined posture so that the suction pad 8 can suction the glass plate G in the inclined posture P2 in the lowered state. The longitudinal movement portion 6 and the vertical movement portion 7 are for moving the glass plate G adsorbed to the suction pad 8 in the state of the inclined posture P2.

As shown in FIG. 4, the plurality of suction pads 8 are disposed in the vertically moving portion 7 so as to be attracted to the peripheral portions of the glass plates G, G1, and G2 of a plurality of types of sizes. In FIG. 4, the plurality of suction pads 8 form a row in the longitudinal direction and a row in the lateral direction.

As shown in FIG. 5, the plurality of suction pads 8 are connected to the pipe 10 via the first valve portion 9a. A negative pressure generation source 11 is connected to the pipe 10 via the second valve portion 9 b. The negative pressure generation source 11 can be configured by, for example, a vacuum pump, and if necessary, a reservoir tank whose inside is maintained at a negative pressure may be disposed between the vacuum pump and the second valve portion 9b. Moreover, the compressed air source 12 is connected to the piping 10 via the 3rd valve part 9c. The compressed air source 12 can be, for example, a compressor, and if necessary, a reservoir tank whose inside is maintained at a positive pressure may be disposed between the compressor and the third valve portion 9c. When the third valve portion 9 c is closed and the second valve portion 9 b is opened, a vacuum system is constituted by the negative pressure source 11 and the pipe 10. On the other hand, when the second valve portion 9 b is closed and the third valve portion 9 c is opened, high pressure air flows from the compressed air source 12 into the pipe 10.

The first valve portion 9a is automatically opened in a state where the suction end of the suction pad 8 is in contact with the glass plate G, and the suction end of the suction pad 8 is in contact with the glass plate G Close without doing. Such a first valve portion 9a can be constituted by, for example, a suction assist valve manufactured by SMC, or the like.

As shown in FIG. 3, the carriage 4 is provided with a placement surface 4 a on which the glass plate G moved by the front and rear moving part 6 and the vertical moving part 7 is placed. The placement surface 4 a is provided on the placement unit 4 b. The mounting surface 4a is an inclined surface on which the glass plate G can be mounted in the state of the inclined posture P2. The mounting surface 4a on which the glass sheet G with the inclined posture P2 is mounted is at a lower position than the conveyance surface 2e of the conveyance mechanism 2 with which the glass sheet G with the inclined posture P2 is supported. The mounting surface 4a on which the glass sheet G in the inclined posture P2 is mounted and the transport surface 2e on which the glass sheet G in the inclined posture P2 is supported are inclined in the same manner as the glass sheet G in the inclined posture P2. In order to prevent the glass plate G from falling from the mounting surface 4a, a plate-shaped receiving tray 4c is provided on the lower side of the mounting surface 4a. The inclination angle of the mounting surface 4a is configured to be changeable. Thus, by setting the inclination angle of the glass sheet G and the mounting surface 4a to, for example, 50 to 85 °, as shown by a broken line in FIG. 3, the mounting portion 4b (glass sheet G) is placed vertically. Can. Moreover, although illustration is abbreviate | omitted, the mounting part 4b (glass plate G) can also be made into a horizontal attitude. In addition, you may comprise the inclination angle of the mounting surface 4a unchangeable.

The extraction mechanism 3 is provided with a sensor 13 supported by a support member (not shown). The sensor 13 is configured of, for example, a proximity sensor. The sensor 13 can detect the presence or absence of the mounting portion 4 b of the carriage 4. Moreover, the propriety of the inclination angle of the mounting surface 4 a can be further detected by the sensor 13. That is, it can be detected whether or not the inclination angle of the mounting surface 4a is the same as the inclination angle of the glass sheet G in the inclined posture P2. These detections can be performed, for example, by providing the sensor 13 at a position where the mounting portion 4b can be detected only when the inclination angle of the mounting surface 4a is the same as the inclination angle of the glass plate G of the inclination posture P2. It becomes.

In order to remove and recover the liquid remaining on the glass plate G while the mounting portion 4b is in the inclined posture, the pan 4c has a plurality of through holes (not shown) and the weir 4d and the tank 4e are arranged. Ru. When the placement unit 4b is in the inclined posture, the weir 4d is located directly below the receiving tray 4c. The weir 4 d and the tank 4 e are connected by a pipe (for example, a hose). In such a configuration, the liquid remaining on the glass plate G is discharged from the plurality of through holes of the pan 4c as it flows down. The liquid discharged from the through hole is supplied to the crucible 4 d by dropping. The liquid supplied to the crucible 4d is collected and collected in the tank 4e.

The tray 4f is disposed in order to remove and recover the liquid remaining on the glass plate G in a state in which the placement unit 4b is in the vertically placed posture. When the placement unit 4b is in the vertically placed posture, the tray 4f is located directly below the tray 4c. In such a configuration, the liquid remaining on the glass plate G is discharged from the plurality of through holes of the pan 4c as it flows down. The liquid discharged from the through hole falls onto the tray 4f and is recovered.

Next, the operation of the main part of the manufacturing apparatus 1 will be described with reference to FIGS. Note that the crucible 4d and the tank 4e are not related to the operation of the main part of the manufacturing apparatus 1 and thus are not shown in FIGS. 6 to 14.

As shown in FIG. 6, initially, the carriage 4 does not exist, and the extraction mechanism 3 is in a standby state. The front and rear moving portion 6 is at the retracted position Lb, and the vertical moving portion 7 is at the rising position Lu. And the 2nd conveyance mechanism 2b is performing normal operation. That is, the second transport mechanism 2b changes the posture of the glass sheet G carried on the second transport mechanism 2b from the horizontal attitude P1 to the inclined attitude P2, and then carries it out of the second transport mechanism 2b to the third transport mechanism 2c. The action of repeating is repeated. In the illustrated example, the glass plate G on the second transport mechanism 2b is in a horizontal posture P1 before being changed in posture.

Next, as shown in FIG. 7, the carriage 4 is placed at a predetermined position. Then, the extraction mechanism 3 is put into operation. Then, the second transport mechanism 2b maintains the posture after the glass plate G is changed from the horizontal posture P1 to the inclined posture P2. Further, the second valve portion 9 b is opened and the third valve portion 9 c is closed, and the pipe 10 and the negative pressure source 11 constitute a vacuum system.

Then, when the sensor 13 detects the presence of the mounting portion 4b of the carriage 4 and detects that the inclination angle of the mounting surface 4a is the same as the inclination angle of the glass plate G of the inclined posture P2, FIG. As shown in, the front and rear moving portion 6 moves forward to the forward position Lf. On the other hand, when the sensor 13 can not detect that the placement portion 4b is present or that the tilt angle of the placement surface 4a is the same as the tilt angle of the glass sheet G in the tilt posture P2, the extraction operation is stopped. If necessary, use a rotating light or lamp to warn of an abnormal stop.

Here, it is confirmed that the extraction mechanism 3 maintains the posture after the second conveyance mechanism 2b changes the posture of the glass plate G. Then, when this confirmation is completed, as shown in FIG. 9, the vertically moving part 7 descends to the first lowered position Ld1, and the suction pad 8 sucks and holds the glass plate G with the inclined posture P2. The extraction mechanism 3 confirms that the degree of vacuum of the vacuum system has reached a predetermined value in order to confirm the suction holding of the glass plate G by the suction pad 8.

When the confirmation of the degree of vacuum of the vacuum system is completed, as shown in FIG. 10, the vertically moving portion 7 is raised to the rising position Lu. Then, as shown in FIG. 11, the front and rear moving portion 6 retracts to the retraction position Lb. Thereafter, as shown in FIG. 12, the vertically moving portion 7 is lowered to the second lowering position Ld2. Also during this time, the glass plate G held by suction by the suction pad 8 is in the inclined posture P2.

In the state of FIG. 12 (the state in which the vertically moving portion 7 is lowered to the second lowering position Ld2), the glass plate G of the inclined posture P2 adsorbed and held by the suction pad 8 and the mounting portion 4b of the carriage 4 There is a minute gap with the surface 4a.

Here, the second valve portion 9b is closed and the third valve portion 9c is opened, high pressure air is made to flow from the compressed air source 12 into the pipe 10, and after a predetermined time has elapsed, the third valve portion 9c is closed. Thus, the suction holding of the glass plate G by the suction pad 8 is released. Then, the glass plate G is separated from the suction pad 8 and is mounted on the mounting surface 4 a of the mounting portion 4 b of the carriage 4 in the inclined posture P 2 state. In addition, before releasing the suction holding of the glass plate G by the suction pad 8, the sensor 13 again detects the presence of the mounting portion 4b of the carriage 4, and the inclination angle of the mounting surface 4a is the inclined posture P2. It may be detected that it is the same as the inclination angle of the glass plate G. In this case, detection by the initial sensor 13 (state shown in FIG. 7) may be omitted.

Then, as shown in FIG. 13, the vertically moving portion 7 ascends to the rising position Lu. The extraction mechanism 3 is now in a standby state. Then, as shown in FIG. 14, the attitude maintenance of the second transport mechanism 2b is released, and the second transport mechanism 2b returns to the normal operation. Further, the carriage 4 on which the glass sheet G is placed is moved to an inspection device located at another place, and the glass sheet G is inspected by the inspection device there. The return to the normal operation of the second transport mechanism 2b may be performed in a state where the vertically moving unit 7 retracts with respect to the second transport mechanism 2b after the extraction mechanism 3 holds the glass plate G, for example, The second transport mechanism 2b may be operated normally in the state shown in FIG.

The following effects can be obtained by the manufacturing apparatus 1 configured as described above.

An arbitrary glass plate G is held at an inclined posture P2 out of the plurality of glass plates G subjected to end surface processing by the extraction mechanism 3 and transferred from the transport mechanism 2 to the mounting surface 4a. Since the inclination angle α with respect to the horizontal plane H is larger than the horizontal attitude P1 in the inclined posture P2 of the glass plate G, the liquid adhering to the glass plate G is efficiently transferred from the glass plate G in the process of transferring the glass plate G by the extraction mechanism 3 Falls well. Therefore, the amount of liquid adhering to the removed glass plate G can be reduced. That is, according to the manufacturing apparatus 1 of the glass plate which concerns on this embodiment, in the manufacturing process of a glass plate, the liquid quantity adhering to the glass plate G extracted after end surface processing process S1 can be decreased.

The present invention is not limited to the above embodiment, and various modifications are possible within the scope of the technical idea thereof. For example, in the above embodiment, the mounting surface 4a is disposed on the side of the glass plate G of the transport mechanism 2 on the upper side of the inclination attitude P2 of the glass plate G, but as shown in FIG. The mounting surface 4 a may be disposed on the side of the downward inclination of the inclined posture P <b> 2 of G.

Moreover, in the said embodiment, although the glass plate G on the 2nd conveyance mechanism 2b was moved, as shown in FIG. 15, the glass plate G on the 3rd conveyance mechanism 2c before implementing washing process S3 is carried out. You may move it.

Moreover, in the said embodiment, although the height of the conveyance surface 2e of the 2nd conveyance mechanism 2b and the height of the mounting surface 4a of the mounting part 4b differ, height of these may be the same. In the illustrated example of FIG. 15, the height of the conveyance surface 2 f of the third conveyance mechanism 2 c is the same as the height of the placement surface 4 a of the placement unit 4 b.

In the above embodiment, the height of the first lowering position Ld1 of the vertically moving portion 7 for removing the glass plate G on the transport surface 2e, and the vertically moving portion for placing the glass plate G on the mounting surface 4a Although the heights of the second lowering position Ld2 of 7 are different from each other, the height of the first lowering position Ld1 may be the same as the height of the second lowering position Ld2.

Further, in the above embodiment, while the glass plate G remains in the inclined posture P2 while being sucked and held by the extraction mechanism 3, the glass plate G is at least at one time while being attracted and held by the extraction mechanism 3. As long as G is in the inclined posture P2, there may be a time when the glass plate G has an inclined posture different in inclination angle from the inclined posture P2 or the horizontal posture P1.

Moreover, in the said embodiment, although the mounting surface 4a was inclined similarly to the glass plate G of the inclination attitude | position P2, you may incline by the inclination angle different from the glass plate G of the inclination attitude | position P2, and It may be a horizontal surface.

Further, in the above embodiment, the extraction mechanism 3 adsorbs and holds the glass plate G by the suction pad 8, but the extraction mechanism 3 only needs to be able to hold the glass plate G, for example, the glass plate G You may hold and hold.

Moreover, in the said embodiment, although the mounting surface 4a of the mounting part 4b of the trolley | bogie 4 was used as a mounting surface of the glass plate G, it is not limited to this, For example, the upper surface of a mounting base, or a belt A transport surface or the like of a transport mechanism such as a conveyor may be used as the placement surface.

Moreover, in the said embodiment, although the glass plate G was rectangular shape, it is not limited to this, For example, a circular shaped glass plate etc. may be sufficient. The thickness of the glass plate G can be, for example, 0.05 mm to 10 mm, and preferably 0.05 mm to 0.7 mm. When the glass plate G has a rectangular shape, the size (longitudinal x lateral) of the glass plate can be, for example, 1000 mm x 1000 mm or more, preferably 1500 mm x 1500 mm or more, and 2000 mm x 2000 mm or more More preferable. On the other hand, the upper limit of the size of the glass plate can be, for example, 3000 × 3000 mm or less.

Further, in the above embodiment, in order to remove and recover the liquid remaining on the glass plate G in a state in which the mounting portion 4b is in the inclined posture, the receiving plate 4c is provided with a plurality of through holes, and the weir 4d is disposed. However, the removal and recovery of the liquid remaining on the glass plate G may not be performed. Alternatively, the liquid remaining in the glass plate G may be removed and recovered by another configuration, and for example, configurations as shown in FIGS. 16 and 17 may be employed. FIG. 17 is a schematic plan view of the placement unit 4b shown in FIG.

The basic configuration of the extracting mechanism 3 shown in FIGS. 16 and 17 is the same as that of the extracting mechanism 3 shown in FIG. 3, and the configuration for removing and recovering the liquid remaining on the glass plate G is changed. The inclination angle of the surface 4a is configured to be unchangeable. Specifically, in the extraction mechanism 3 shown in FIGS. 16 and 17, a plate-shaped receiving tray 4g not having a plurality of through holes is disposed on the lower side of the placement surface 4a. The receiving tray 4g supports the end face of the placed glass plate G, and guides and flows the liquid desorbed from the glass plate G along the longitudinal direction of the receiving plate 4g. At one longitudinal end of the tray 4g, a discharge unit 4h for discharging the liquid guided to the tray 4g is disposed. The discharge part 4h has a plate-like base part 4i, a discharge port 4j provided in the base part 4i, and a side wall 4k for preventing the liquid from flowing out. On the other hand, at the other end in the longitudinal direction of the saucer 4g, a side wall 4l is disposed to prevent the liquid from flowing out. Further, the discharge port 4j is connected to the upper end of the pipe 4m (for example, a hose). The lower end of the pipe 4m is disposed directly above the tank 4n whose upper surface is open.

According to such a configuration, the liquid desorbed from the glass plate G can be led to the discharge port 4j by flowing along the pan 4g. Along with this, the liquid desorbed from the glass plate G is collected, and the collected liquid flows through the pipe 4m connected to the discharge port 4j and falls to reach the tank 4n.

In addition, you may provide the discharge port 4j in the excessive area | region (area | region where the glass plate G is not mounted) of the mounting surface 4a. Moreover, you may provide the discharge port 4j in the both ends of the longitudinal direction of 4 g of trays, respectively. In order to correspond to glass plates of a plurality of types of sizes, an outlet 4j may be provided at the middle of the receiving tray 4g in the longitudinal direction. Moreover, you may provide an on-off valve in the path | route from the discharge port 4j to the lower end of 4 m of piping. In this case, if the on-off valve is opened while the carriage 4 is stopped at an appropriate position, the liquid can be collected in the tank 4n, and if the on-off valve is closed while the carriage 4 is traveling, dropping of the liquid can be prevented.

DESCRIPTION OF SYMBOLS 1 Glass plate manufacturing apparatus 2 transport mechanism 2a first transport mechanism 2b second transport mechanism 2c third transport mechanism 3 extraction mechanism 4 carriage

4a placement surface

4b placement portion

4c, 4g saucer 4d 樋 4j discharge port 8 suction pad 9a First valve 10 Piping (vacuum system)
11 Negative pressure source (vacuum system)
13 sensor G, G1, G2 glass plate H horizontal attitude P1 horizontal attitude P2 inclined attitude S1 end face processing process S2 attitude changing process S3 cleaning process α inclination angle

Claims

An end face processing step of processing an end face of a glass plate in a horizontal posture while supplying liquid, a posture changing step of changing the glass plate in the horizontal posture to an inclined posture, and a cleaning step of cleaning the glass plate in the inclined posture A method of manufacturing the glass sheet, wherein the glass sheet is conveyed by the conveyance mechanism in the order of
Between the posture changing step and the cleaning step, a glass is characterized by comprising a sampling step of holding the glass plate in the inclined position by a sampling mechanism and transferring the glass plate from the transport mechanism to a predetermined mounting surface. How to make a board.
The method for manufacturing a glass sheet according to claim 1, wherein the mounting surface is disposed on a side of the transport mechanism which is an upper side of the inclined posture.
The method for manufacturing a glass sheet according to claim 1, wherein the mounting surface is disposed on a side of the transport mechanism which is the lower side of the inclined posture.
The method for manufacturing a glass sheet according to any one of claims 1 to 3, wherein the extraction mechanism adsorbs the glass sheet by a plurality of suction pads.
Each of the plurality of suction pads is connected to a vacuum system via a valve unit,
5. The glass according to claim 4, wherein the valve portion is automatically opened when the suction pad is in contact with the glass plate and is closed when the suction pad is not in contact with the glass plate. How to make a board.
The method for manufacturing a glass plate according to claim 4 or 5, wherein the plurality of suction pads are arranged to be attracted to the peripheral portion of the glass plate of a plurality of types of sizes.
The method for producing a glass sheet according to any one of claims 1 to 6, wherein the mounting surface is an inclined surface on which the glass sheet can be mounted in the inclined posture.
The above-mentioned mounting surface is provided on the carriage,
The carriage is configured to be able to change the angle of the mounting surface.
The method for manufacturing a glass sheet according to claim 7, wherein the presence or absence of the carriage and the propriety of the inclination angle of the mounting surface are detected by a sensor.
A tray for supporting the end face of the glass plate is provided on the inclined lower side of the mounting surface, and a weir is disposed directly below the tray,
The method according to claim 7 or 8, wherein the liquid desorbed from the glass sheet is supplied to the crucible by discharging the liquid from the plurality of through holes of the pan and dropping the liquid.
A tray for supporting the end face of the glass plate is provided on the side of the mounting surface on the lower side of the mounting surface, and a discharge port for discharging the liquid is disposed.
The method according to claim 7 or 8, wherein the liquid desorbed from the glass plate flows along the pan and is led to the discharge port.
An end face processing step of processing an end face of a glass plate in a horizontal posture while supplying liquid, a posture changing step of changing the glass plate in the horizontal posture to an inclined posture, and a cleaning step of cleaning the glass plate in the inclined posture An apparatus for manufacturing a glass plate having a transfer mechanism for transferring the glass plate in the order of
Between the said attitude | position change process and the said washing | cleaning process, the said extraction method hold | maintains the said glass plate in the said inclination attitude | position, It comprises the extraction mechanism characterized by the above-mentioned. apparatus.