Method for manufacturing a sheet glass and device for extracting a sheet glass

Abstract

Provided are a method for manufacturing a sheet glass and a sheet glass extraction device that enable extraction of a sheet glass while suppressing generation of sagging, rolling, or the like of a protective sheet. In an extraction process, a peripheral edge portion of a sheet glass laminate (G) is held by a pressing member (41) composed of an elastic member on a main surface (Ga) on the side opposite to the surface (support surface) (12b1) of a back surface support member (12b) in a tray (10). The pressing member (41) moves toward the surface (support surface) (12b1) in correspondence with a change in thickness of the sheet glass laminate (G) accompanying extraction of the sheet glass (G1).

Description

Technical Field

[0001] The present invention relates to a method for manufacturing plate glass including a removal process in which plate glass sheets and protective sheets are sequentially removed one by one from a plate glass laminate resting against a support surface of a tray, and a plate glass removal device for performing the removal process. Background Technology

[0002] For example, the manufacturing process of the glass plate used in flat panel displays such as liquid crystal display devices and organic EL display devices includes the following steps: alternatingly arranging the glass plate and protective sheet against the support surface of a tray; stacking and bundling multiple glass plates and multiple protective sheets; and transporting the stacked and bundled bundle to a predetermined subsequent process (for example, see "Patent Document 1").

[0003] Multiple sheets of glass, bundled together and accompanied by protective sheets (hereinafter appropriately referred to as "sheet glass stack"), are transported to the upstream side of the aforementioned subsequent process. Then, using a removal mechanism, the sheets of glass are sequentially removed from the sheet glass stack, starting from the side opposite to the support surface of the tray, along with the protective sheets.

[0004] Here, the aforementioned removal mechanism, for example, has an adsorption mechanism capable of simultaneously adsorbing a sheet of glass and a protective sheet, and is configured to move relative to the glass stack on the transport tray in both a direction of approach and a direction of separation.

[0005] Furthermore, after the removal mechanism moves from the designated standby position toward the glass laminate on the tray, it simultaneously adsorbs a sheet of glass and a protective sheet using the adsorption mechanism. Then, the removal mechanism removes the sheet of glass and the protective sheet by moving in the separation direction. The sheet of glass removed from the glass laminate, along with the protective sheet, is held together by a transfer mechanism equipped with a clamping mechanism and fed to the subsequent process.

[0006] Existing technical documents

[0007] Patent documents

[0008] Patent Document 1: Japanese Patent Application Publication No. 2013-126877 Summary of the Invention

[0009] The problem that the invention aims to solve

[0010] Protective sheets are generally thin and lack sufficient rigidity. Therefore, for example, the pressure difference with atmospheric pressure generated when a sheet of glass and the protective sheet are simultaneously adsorbed by the suction mechanism of the extraction mechanism, or slight airflow turbulence caused by the operation of the extraction mechanism, may cause the protective sheet to sag locally or curl up at the lower corner.

[0011] In cases of significant sagging or curling, the operator may be unable to repair it. In such situations, the transfer mechanism will send the protective sheet and glass plate that have sagged or curled to the next process.

[0012] For example, when the glass pane and protective sheet are positioned horizontally together, the glass pane may float in areas where the protective sheet sags or curls. As a result, it can be difficult to cut (or sever) the glass pane stably.

[0013] Furthermore, for example, when glass panes are transported along a predetermined direction using a conveyor with a protective sheet in between, the main surface of the glass pane (more specifically, the main surface on the side of the protective sheet) may come into direct contact with the conveyor in areas where the protective sheet may sag or curl. As a result, damage or defects may sometimes occur on the main surface of the glass pane.

[0014] Furthermore, when using conveyors or other equipment to transport glass panels, the protective film may easily roll over during transport, which could also cause transport malfunctions.

[0015] Patent Document 1 discloses a paper support member for suppressing the sagging, curling, etc. of the paper backing (protective sheet).

[0016] The aforementioned paper support member is connected to the upper end of the tray at one end and clamps the upper ends of multiple protective sheets at the other end, thereby suppressing the sagging, curling, etc. of the protective sheets.

[0017] However, this type of paper-lined support member is used to suppress sagging and curling of the protective sheet when transporting the laminated glass sheets bundled on a pallet to a designated destination. Therefore, it is difficult to use the paper-lined support member when removing a single sheet of glass and the protective sheet from the laminated glass sheet using an extraction mechanism.

[0018] The present invention was made in view of the current problems described above, and the objective is to provide a method for manufacturing a plate glass and a plate glass removal device that can remove the plate glass while suppressing the sagging, curling, etc. of the protective sheet.

[0019] Solution for solving the problem

[0020] The problem to be solved by the present invention is as described above, and the solution to solve the problem will be described below.

[0021] That is, the glass manufacturing method of embodiment 1 of the present invention includes the following removal step: from a glass laminate consisting of a plurality of protective sheets and a plurality of glass sheets stacked together with the plurality of protective sheets respectively sandwiched in a state of being arranged against the support surface of a tray, the glass sheets are sequentially removed one by one along with the protective sheets, starting from the glass sheet on the side opposite to the support surface. The glass manufacturing method is characterized in that, in the removal step, the periphery of the glass laminate is pressed by a pressing member consisting of an elastic member on the main surface of the glass laminate on the side opposite to the support surface. The pressing member moves toward the support surface in accordance with the change in the thickness of the glass laminate that accompanies the removal of the glass sheets.

[0022] According to the manufacturing method of the sheet glass with this structure, a pressing member made of elastic material is used to press down on the periphery of the sheet glass laminate. Therefore, the pressing member can suppress local sagging of the protective sheet and curling of the area corresponding to the lower corner of the sheet glass in the protective sheet. Moreover, by elastically deforming the pressing member, a sheet glass and the protective sheet can be easily removed from the sheet glass laminate.

[0023] Furthermore, the pressing member moves toward the support surface of the tray in response to changes in the thickness of the glass laminate as it is removed. Therefore, even if the removal process is carried out and the thickness of the glass laminate decreases, the pressing member can stably hold the periphery of the glass laminate.

[0024] Furthermore, the method for manufacturing the plate glass in Scheme 2 of the present invention is based on Scheme 1 above, characterized in that the pressing member abuts against the end of the plate glass on the side opposite to the supporting surface side in the plate glass laminate, through the protective sheet.

[0025] With this structure, not only can local sagging of the protective sheet and curling of the area corresponding to the lower corner of the glass plate be suppressed, but the pressing member can also stably maintain the configuration of the glass plate (or the glass plate and the protective sheet) on the tray.

[0026] Furthermore, the method for manufacturing plate glass in Scheme 3 of the present invention is based on Scheme 1 or Scheme 2 above, characterized in that a plurality of pressing members are provided along one end of the plate glass laminate.

[0027] With this structure, the pressing member can more reliably suppress local sagging of the protective sheet and curling of the area in the protective sheet that corresponds to the lower corner of the glass plate.

[0028] Furthermore, the method for manufacturing the plate glass in Scheme 4 of the present invention is based on any one of Schemes 1 to 3 above, characterized in that the pressing member presses against the top and side of the plate glass laminate.

[0029] With this structure, the pressing member can more reliably suppress local sagging of the protective sheet and curling of the area in the protective sheet that corresponds to the lower corner of the glass plate.

[0030] Furthermore, the method for manufacturing the plate glass in embodiment 5 of the present invention is based on embodiment 3 above, characterized in that at least one of the plurality of pressing members contacts the edge of the end of the plate glass through the protective sheet.

[0031] This structure prevents excessive resistance from the pressing member when removing a sheet of glass and a protective sheet from the laminate of glass panels by overcoming the elasticity of the pressing member. Therefore, the pressing member can stably maintain the arrangement of the glass panels (or glass panels and protective sheets) on the tray.

[0032] Furthermore, the method for manufacturing plate glass according to embodiment 6 of the present invention is based on any one of embodiments 1 to 5 above, characterized in that the pressing member slides in a direction orthogonal to the main surface of the plate glass laminate by means of a sliding mechanism under the weight of the pressing member itself or the weight of the pressing member and the counterweight.

[0033] With this structure, the pressing component can be moved toward the support surface of the tray without the need for a separate, complex moving mechanism.

[0034] Furthermore, the method for manufacturing the plate glass in Scheme 7 of the present invention is based on any one of Schemes 1 to 6 above, characterized in that the elastic member of the pressing member is composed of a strip brush.

[0035] By using a strip brush, which is an elastic component with relatively low rigidity, to form a pressing component, it is possible to prevent the thin protective sheet from breaking due to excessive pressing force when pressing the glass laminate.

[0036] Furthermore, without encountering excessive resistance from the pressing component, the aforementioned sheet of glass and protective plate can be easily removed.

[0037] Furthermore, the glass removal device of embodiment 8 of the present invention sequentially removes the glass sheets one by one from a glass laminate composed of a plurality of protective sheets and a plurality of glass sheets stacked together with the plurality of protective sheets sandwiched between them. The glass removal device is characterized in that it comprises: a tray that holds the glass laminate upright against a support surface; a pressing member composed of an elastic member that presses down on the periphery of the main surface of the glass laminate opposite to the support surface side of the tray; a removal mechanism that removes the glass sheets together with the protective sheets; and a sliding mechanism that slides the pressing member toward the support surface side in accordance with the change in the thickness of the glass laminate accompanying the removal of the glass sheets.

[0038] According to the glass removal device of the present invention with this structure, the same effect as described in the above description of the manufacturing method is obtained.

[0039] Invention Effects

[0040] As a result of the present invention, the following effects are achieved.

[0041] That is, according to the glass manufacturing method and glass removal device of the present invention, the glass can be removed while suppressing the sagging, curling and other occurrences of the protective sheet. Attached Figure Description

[0042] Figure 1 This is a side view showing the overall structure of a plate glass removal device according to an embodiment of the present invention.

[0043] Figure 2 This is a front view showing the structure of a tray with a laminate of plate glass.

[0044] Figure 3 This is a side view showing the structure of a tray with a laminate of plate glass.

[0045] Figure 4 This is a front view showing the structure of the pressing clamp.

[0046] Figure 5 This is a side view showing the structure of the pressing clamp.

[0047] Figure 6 It is a diagram showing the state of the pressing member when the periphery of the laminated glass is pressed down, and an enlarged side view showing the state of the edge of the end of the laminated glass being pressed down through the protective sheet. Detailed Implementation

[0048] Next, use Figures 1 to 6 An embodiment of the present invention will be described.

[0049] It should be noted that, for convenience, the following explanation uses... Figure 1 The arrows shown define and describe the forward and backward, left and right, and up and down directions of the extraction device 1.

[0050] In addition, using Figure 2 as well as Figure 3 The arrows shown define and describe the front-back, left-right, and up-down directions of the tray 10.

[0051] Moreover, utilizing Figures 4 to 6 The arrows shown define and describe the front-back, left-right, and up-down directions of the pressing clamp 40.

[0052] [Overall structure of extraction device 1]

[0053] First, use Figures 1 to 3 The overall structure of the extraction device 1, which embodies the glass extraction device of the present invention, will be described.

[0054] The removal device 1 in this embodiment is provided, for example, in the manufacturing process of the plate glass G1 used in flat panel displays such as liquid crystal display devices and organic EL display devices. The removal device 1 is a device that, as described later, removes the plate glass G1 and the protective sheet G2 one by one from the stacked and bundled plate glass laminate G.

[0055] Here, in the manufacturing process of the glass plate G1, the glass plate G1 formed through various processes is alternately placed against the tray 10 along with the protective sheet G2, and is stacked and bundled in the state of a glass plate stack G.

[0056] Furthermore, the stacked and bundled glass laminate G is transported together with the tray 10 to the upstream side of the specified subsequent process (e.g., cutting process, grinding process, etc.), and then removed by the removal device 1.

[0057] In the removal process, as described later, the removal mechanism 20 is used to remove the glass panes G1 and the protective sheet G2 one by one from the glass pane stack G that is supported on the tray 10. Then, the transfer mechanism 30 is used to clamp the glass pane G1 and the protective sheet G2 in an overlapping state and transport them to the next process.

[0058] like Figure 1 As shown, the extraction device 1 includes a tray 10, an extraction mechanism 20, and a transfer mechanism 30, which are arranged sequentially toward the next process.

[0059] In addition, the removal device 1 has a pressing clamp 40 that can be detachably fixed relative to the tray 10 and maintains the posture of the plate glass laminate G disposed on the tray 10.

[0060] The tray 10 stacks and bundles multiple glass panels G1, G1... and protective sheets G2, G2... in an upright position.

[0061] like Figure 2 as well as Figure 3 As shown, the pallet 10 includes a base 11, a mounting platform 12 disposed above the base 11, and a support frame 13 supporting the mounting platform 12 from the base 11.

[0062] The base 11 is, for example, a loading platform that is roughly rectangular in shape when viewed from above. Furthermore, multiple openings 11a, 11a... are provided on the side end faces of the periphery for inserting transport claws such as forklifts.

[0063] The stage 12 has a lower end support member 12a at the lower end of the support plate glass laminate G and a back side of the support plate glass laminate G (in Figure 3 The rear support member 12b (located at the back).

[0064] The lower support member 12a is composed of components along the horizontal direction and in one direction ( Figure 2 It consists of a roughly rectangular strip-shaped component extending in the left-right direction, and is arranged so that the upper surface 12a1 is slightly inclined towards the front and upward.

[0065] Furthermore, the glass laminate G is placed on the upper surface 12a1 in a longitudinal orientation and its lower end is supported by the lower end support member 12a.

[0066] The rear support member 12b is composed of a rectangular flat plate and supports one end of the lower support member 12a (in... Figure 3 (The middle part is the rear end) extends vertically upward.

[0067] That is, the lower end of the back support member 12b supports the side of the support member 12a (on the side of the back support member 12b). Figure 3 The surface 12b1 (front side) functions as a support surface.

[0068] It should be noted that the external dimensions of surface 12b1 are set to be slightly larger than the external dimensions of plate glass G1 and protective sheet G2.

[0069] Furthermore, the laminated glass G, which is placed on the upper surface 12a1 of the lower support member 12a in a longitudinal orientation, is supported on the back side (rear side) by the surface 12b1 of the back support member 12b, thereby facing the back support member 12b side ( Figure 3 The rear side of the middle is slightly tilted.

[0070] The support frame 13, for example, has a support along one end of the upper surface of the base 11. Figure 3The front end of the middle) supports the lower end support member 12a with multiple support blocks 13a, 13a... and along the other end ( Figure 3 Multiple support columns 13b, 13b… extending from the rear end of the support frame 13. The support frame 13 also has a back end 12b2 ( ) along the back support member 12b. Figure 3 The rear frame 13c, which is made of a lattice structure, is provided on the rear side of the structure, and a number of beams 13d, 13d... that connect the support column 13b to the rear frame 13c.

[0071] In the tray 10 constructed with the above structure, multiple glass plates G1, G1... and protective sheets G2, G2... are stacked and bundled together, alternatingly pressed against each other and resting against the surface (support surface) 12b1 of the back support member 12b.

[0072] In other words, in tray 10, the glass laminate G is configured to rest against the surface (support surface) 12b1 of the back support member 12b.

[0073] It should be noted that, generally speaking, the multiple glass plates G1, G1... constituting the glass plate laminate G and the protective sheets G2, G2... are laminated in such a way that the protective sheet G2 is located at the end of the layer on the side opposite to the back support member 12b (front side).

[0074] And, as Figure 1 As shown, after the tray 10 containing the laminated glass body G is temporarily transported to the upstream side of the subsequent process, it is positioned at a designated removal point P1 with the surface 12b1 of the back support member 12b facing the rocker platform 100. Figure 1 The state configuration of the front side (in the middle).

[0075] Here, the rocker table 100 moves the glass plate G1 and the protective sheet G2 taken out from the glass plate laminate G to the next process.

[0076] The rocker platform 100 may include, for example, a base 101, a support platform 102 disposed on the upper surface of the base 101, and an attitude change mechanism 103.

[0077] The attitude change mechanism 103 rotates about a rotation axis extending horizontally. Furthermore, by rotating the attitude change mechanism 103, the platform 102 changes between a horizontal position and a generally vertical position.

[0078] Furthermore, the rocker platform 100 receives the glass plate G1 and the protective sheet G2, which are transported in a longitudinal position by the transfer mechanism 30 (described later), using the support platform 102 in a generally vertical position. Then, the support platform 102 is changed to a horizontal position to move the glass plate G1 and the protective sheet G2 to the next process.

[0079] The removal mechanism 20 removes the glass plate G1 and the protective sheet G2 together from the glass plate stack G that is bundled and wrapped in the tray 10.

[0080] The removal mechanism 20 includes, for example, a removal mechanism main body 21; and adsorption mechanisms 22, 22..., which are disposed on the removal mechanism main body 21 and are arranged along the horizontal direction ( Figure 1 Multiple (left and right directions) configurations in the middle Figure 1 (This is a side view, so only one is shown.) It consists of a vacuum disk, etc.

[0081] Furthermore, the removal mechanism 20 is configured such that the adsorption surfaces of a plurality of adsorption mechanisms 22, 22... are arranged on the rocker side (front side) of the tray 10 at the removal position P1, facing the upper end of the glass laminate G on the tray 10, and can be positioned relative to the glass laminate G in both the approaching and moving away directions. Figure 1 (Move in the forward and backward directions).

[0082] Furthermore, the removal mechanism 20 moves from the predetermined first standby position X1 toward the glass laminate G in an approaching direction. Figure 1 After moving in the backward direction, the upper ends of a single sheet of glass G1 and a protective sheet G2 are simultaneously adsorbed by the adsorption mechanism 22, and then moved away in the direction of retraction. Figure 1 The glass plate G1 and the protective sheet G2 are moved forward in the direction of the tray 10. This removes the glass plate G1 and the protective sheet G2 from the glass plate laminate G. Furthermore, by repeatedly performing the above-described action by the removal mechanism 20, the removal mechanism 20 moves from the glass plate laminate G disposed on the tray 10 from the side opposite to the surface (support surface) 12b1 of the back support member 12b. Figure 1 Starting from the front surface side of the glass plate G1, take out the glass plate G1 and the protective sheet G2 one by one in sequence.

[0083] The removal mechanism 20, which removes a sheet of glass G1 and a protective sheet G2, temporarily stops at the intermediate stop position X2 before reaching the first standby position X1, and then transfers the sheet of glass G1 and the protective sheet G2 to the transfer mechanism 30.

[0084] After that, the take-out mechanism 20 moves again in the direction away (forward direction) and stops at the first standby position X1.

[0085] The transfer mechanism 30 receives a sheet of glass G1 and a protective sheet G2 taken out from the glass laminate G in an overlapping state from the take-out mechanism 20 and transfers them to the receiving platform 102 of the rocker stage 100.

[0086] The transfer mechanism 30 may include, for example, a transfer mechanism main body 31 and a clamping mechanism 32 provided on the transfer mechanism main body 31.

[0087] Furthermore, the transfer mechanism 30 is configured such that, between the tray 10 and the rocker platform 100 located at the removal position P1, the clamping mechanism 32 is positioned above the tray 10 and the rocker platform 100 with the clamping mechanism 32 facing downwards, and is capable of horizontal movement. Figure 1 It can move in the forward and backward directions and the vertical direction (up and down).

[0088] Furthermore, when the take-out mechanism 20, which removes a sheet of glass G1 and a protective sheet G2, stops at the intermediate stop position X2, the clamping mechanism 32 moves downward from the predetermined second standby position Y1 and stops at the receiving position Y2 near the take-out mechanism 20.

[0089] The transfer mechanism 30, which stops at the receiving position Y2, is set to a state where the clamping mechanism 32 is closed.

[0090] Thus, the upper ends of the glass plate G1 and the protective sheet G2, which are taken out by the removal mechanism 20, are clamped by the clamping mechanism 32 in an overlapping state.

[0091] On the other hand, when a sheet of glass G1 and a protective sheet G2 are held by the clamping mechanism 32, the removal mechanism 20 will release the adsorption state brought about by the adsorption mechanism 22.

[0092] Thus, a sheet of glass G1 and a protective sheet G2 are transferred from the removal mechanism 20 to the transfer mechanism 30.

[0093] The transfer mechanism 30, which receives a sheet of glass G1 and a protective sheet G2, temporarily moves the sheet of glass G1 and the protective sheet G2 upwards from their suspended state (vertical orientation). Then, it moves them horizontally toward the rocker platform 100. Figure 1 (Move in the forward direction).

[0094] Furthermore, when the transfer mechanism 30 reaches the vicinity of the rocker platform 100, it moves downward and stops at the designated handover position Y3. Then, the clamping state brought about by the clamping mechanism 32 is released.

[0095] Thus, a single sheet of glass G1 and a protective sheet G2 are transferred to the support platform 102 of the rocker platform 100 in an overlapping state.

[0096] Then, the transfer mechanism 30 moves to the second standby position Y1.

[0097] The pressing clamp 40 maintains the orientation of the glass laminate G disposed on the tray 10 as described above.

[0098] Pressing clamps 40, 40, 40, for example... Figure 2As shown at the upper end and both sides of the tray 10 ( Figure 2 The left and right ends of the device can be detachably fixed.

[0099] Specifically, such as Figure 3 As shown, the pressing clamps 40, 40, 40 are relative to the upper end side frame member 13c1 constituting the upper end of the back frame 13c in the tray 10 and the side end side frame members 13c2, 13c2 constituting the two ends. Figure 3 This is a side view, so only one side frame member 13c2 is shown, which can be fixed in a way that can be installed and removed by means of the fixing mechanisms 44, 44, 44 described later.

[0100] Furthermore, each pressing clamp 40 is provided with a plurality of pressing members 41, 41 (two in this embodiment). The pressing clamp 40 uses the plurality of pressing members 41, 41 to press the periphery of the main surface Ga of the glass laminate G on the side opposite to the surface (support surface) 12b1 of the back support member 12b (front side).

[0101] It should be noted that details regarding the structure of the pressing clamp 40 will be described later.

[0102] [Structure of pressing clamp 40]

[0103] Next, use Figure 4 as well as Figure 5 The specific structure of the pressing clamp 40 is explained.

[0104] It should be noted that, as mentioned above, the pressing clamps 40, 40, and 40 in this embodiment are fixed to the upper end and both sides (left and right sides) of the tray 10, respectively. However, these pressing clamps 40, 40, and 40 are composed of approximately the same structure. Therefore, in the following description, the structure of the pressing clamp 40 fixed to the upper end of the tray 10 will be described in detail, and the description of the structure of the pressing clamps 40, 40 fixed to the both sides of the tray 10 will be omitted.

[0105] The pressing clamp 40 mainly comprises: a pressing member 41; a supporting member 42 that supports the pressing member 41; a sliding mechanism 43 that causes the pressing member 41 to slide by means of the supporting member 42; and a fixing mechanism 44 that fixes the pressing clamp 40 to the tray 10.

[0106] When the pressing member 41 presses against the periphery of the glass laminate G disposed on the tray 10 using the pressing clamp 40, it abuts against the periphery of the glass laminate G.

[0107] The pressing member 41 is composed of an elastic member, for example, in this embodiment, it is composed of a strip brush 41b fixed to one end 41a1 of the fixing plate 41a.

[0108] Regarding the material of the pressing member 41, it can be other elastic components such as rubber. As the rubber, natural rubber, polyurethane rubber, nitrile rubber, acrylic rubber, isoprene rubber, styrene-butadiene rubber, chloroprene rubber, butyl rubber, ethylene propylene rubber, fluororubber, etc., can be used. As in this embodiment, the pressing member 41 is preferably a strip brush 41b or preferably a rubber sheet.

[0109] By utilizing a strip brush 41b or rubber sheet, which is an elastic member with relatively low rigidity, to construct the pressing member 41, it is possible to prevent excessive pressing force when pressing, for example, the thin protective sheet G2 (see reference) from being used with the glass laminate G. Figure 2 )damaged.

[0110] Additionally, a single sheet glass G1 is removed from the laminated glass G by overcoming the elastic force of the pressing member 41 (see reference). Figure 2 When pressing the glass plate G1 and the protective sheet G2, the glass plate G1 and the protective sheet G2 can be easily removed without excessive resistance from the pressing member.

[0111] The fixing plate 41a is provided with a plurality of (two in this embodiment) through holes 41a2, 41a2 in the shape of an oblong shape.

[0112] Each through hole 41a2 is in an orthogonal direction to one end 41a1 ( Figure 4 The extension method (vertical direction) is set.

[0113] Furthermore, the pressing member 41 is fixed by means of the aforementioned plurality of through holes 41a2, 41a2 and fastening members such as bolts in a manner that allows it to be displaced relative to the supporting member 42.

[0114] The support member 42 has: a plate portion 42a, which is composed of a generally T-shaped flat plate member and faces to one side ( Figure 4 Extending in the left and right directions; and a rectangular plate portion 42b, which extends from the center of the extending direction of the plate portion 42a to a side in an orthogonal direction orthogonal to the extending direction (in the left and right directions); Figure 4 (The upper side of the middle) protrudes.

[0115] The two ends (left and right ends) of the plate portion 42a in the extension direction function as the fixing parts of the pressing member 41.

[0116] That is, on one side of the support member 42 ( Figure 5 In the plane (hereinafter, appropriately referred to as "surface 42c") of the front side of the strip plate portion 42a, a plurality of (two) internal threaded holes (not shown) are provided at both ends of the strip plate portion 42a.

[0117] Furthermore, in this embodiment, pressing members 41, 41 are respectively provided at both ends of the plate portion 42a (more specifically, at both ends of the plate portion 42a in the surface 42c of the support member 42). These two pressing members 41, 41 direct the brush strips 41b, 41b toward the side opposite to the protruding direction of the rectangular plate portion 42b. Figure 4 The protruding states (on the lower side) are respectively disposed at both ends of the strip plate portion 42a.

[0118] In addition, the pair of pressing members 41, 41 are fixed to the plate portion 42a by means of bolts or other fastening members through multiple internal threaded holes.

[0119] It should be noted that the number of pressing members 41 provided on the pressing clamp 40 can be one or more, but preferably multiple.

[0120] By providing multiple pressing members 41, 41 on the pressing clamp 40, the multiple pressing members 41, 41 can be arranged along one end of the glass laminate G when the periphery of the glass laminate G disposed on the tray 10 is pressed by the pressing clamp 40.

[0121] The aforementioned multiple pressing members 41, 41 can more reliably suppress the partial sagging of the protective sheet G2 that may occur in the laminated glass G disposed on the tray 10, and the curling of the area in the protective sheet G2 corresponding to the lower corner of the laminated glass G1.

[0122] The rectangular plate portion 42b is provided with a plurality of (two in this embodiment) through holes 42b1, 42b1 formed of an oblong shape.

[0123] Each through hole 42b1 is perpendicular to the extending direction of the strip plate portion 42a. Figure 4 The extension method (vertical direction) is set.

[0124] Furthermore, the support member 42 is fixed by means of the aforementioned plurality of through holes 42b1, 42b1 using fastening members such as bolts in a manner that allows it to be displaced relative to the first connecting member 43b of the sliding mechanism 43 described later.

[0125] The sliding mechanism 43 includes: a pair of sliding rods 43a, 43a arranged parallel to each other; a first connecting member 43b connecting one end of the pair of sliding rods 43a, 43a; a second connecting member 43c connecting the other end of the pair of sliding rods 43a, 43a; and a pair of bearing members 43d, 43d supporting the pair of sliding rods 43a, 43a so that they can slide axially.

[0126] It should be noted that the number of sliding rods 43a is not limited to this embodiment. For example, it can be one or more rods.

[0127] The first connecting structural member 43b is, for example, a flat plate-shaped component, and is connected to a pair of sliding rods 43a, 43a in an orthogonal direction via the back side 43b1.

[0128] In addition, the surface 43b2 of the first connecting structural member 43b functions as a fixing part of the support member 42, and multiple internal threaded holes (not shown) are provided on the surface 43b2.

[0129] Furthermore, the extension direction of the plate portion 42a of the support member 42 is arranged in a direction orthogonal to the axial view of the sliding rod 43a.

[0130] In addition, the rectangular plate portion 42b of the support member 42 is fixed to the first connecting member 43b by means of bolts or other fastening members through multiple internal threaded holes.

[0131] The second connecting structural member 43c is a flat plate-shaped component with slightly larger dimensions than the first connecting structural member 43b, and is connected to a pair of sliding rods 43a, 43a in an orthogonal direction via surface 43c1.

[0132] The second connecting structural member 43c is located at one end of surface 43c1 (in... Figure 5 The upper end of the middle section is connected to a pair of sliding rods 43a, 43a in an orthogonal direction. Furthermore, the counterweight Z, which will be described later, is installed on the surface 43c1.

[0133] The bearing member 43d is supported on the fourth frame member 44a4 of the fixing mechanism 44 described later, with the sliding rod 43a inserted coaxially.

[0134] Furthermore, the bearing member 43d supports the support member 42, which is fixed to the first connecting member 43b, so that it can slide and move by means of the sliding rod 43a.

[0135] The fixing mechanism 44 has a fixing frame 44a and a fixing mechanism 44b that can detachably fix the fixing frame 44a relative to the pallet 10.

[0136] The fixed frame 44a has: a first frame member 44a1 and a second frame member 44a2, which are generally flat and arranged opposite to each other; and a third frame member 44a3, which is located at one end ( Figure 5 The rear end of the frame is connected to the first frame member 44a1 and the second frame member 44a2.

[0137] Additionally, the fixed frame 44a has a side in the first frame member 44a1 opposite to the side of the second frame member 44a2. Figure 5 The fourth frame member 44a4 is set out prominently on the plane of the upper side of the middle.

[0138] Furthermore, the fixed frame 44a supports a pair of bearing members 43d, 43d in the sliding mechanism 43 by means of the fourth frame member 44a4.

[0139] Thus, the pair of pressing members 41, 41 are configured to slide relative to the fixing mechanism 44 along the axial direction of the sliding rod 43a.

[0140] The fixing mechanism 44b has, for example, a universal toggle clamp 44b1 and an abutment member 44b2 that can change position using the toggle clamp 44b1. The fixing mechanism 44b is disposed on the second frame member 44a2 of the fixing frame 44a.

[0141] The abutting member 44b2 is disposed between the first frame member 44a1 and the second frame member 44a2 of the fixed frame 44a, near the second frame member 44a2.

[0142] Furthermore, the abutting member 44b2 is disposed opposite to the first frame member 44a1. On the plane of the opposite side of the abutting member 44b2 and the first frame member 44a1, respectively, buffer members 45a and 45b, for example, flat plates made of resin, are provided.

[0143] Furthermore, the abutment member 44b2 is configured to move between a clamping position S1 that is close to the first frame member 44a1 and an open position S2 that is far away from the first frame member 44a1 under the action of the elbow clamp 44b1.

[0144] It should be noted that the clamping position S1 is capable of clamping the upper side frame member 13c1 (or side frame member 13c2) of the back frame 13c in the aforementioned tray 10 together with the first frame member 44a1. (Refer to...) Figure 3 The position of the abutment member 44b2.

[0145] In addition, the open position S2 is the position of the abutment member 44b2 that is opened from the clamping state of the upper side frame member 13c1 (or the side side frame member 13c2) brought about by the abutment member 44b2 and the first frame member 44a1.

[0146] [The holding method is achieved by holding the device by the pressing clamp 40]

[0147] Next, use Figure 2 , Figure 3 , Figure 5 as well as Figure 6The method of holding the glass laminate G disposed on the tray 10 using the pressing clamp 40 is described.

[0148] First, initially, as Figure 2 as well as Figure 3 As shown, a laminate of glass panels G, consisting of multiple glass panels G1, G1... and protective sheets G2, G2..., is pre-positioned on the mounting platform 12 of the tray 10 in a state of standing against the surface 12b1 of the back support member 12b.

[0149] In addition, as mentioned above, the plate glass laminate G is arranged on the tray 10 with the protective sheet G2 located on the outermost layer on the side opposite to the back support member 12b (front side).

[0150] Furthermore, in the tray 10 constructed in this manner, the pressing clamps 40 are fixed to the upper end and both sides of the tray 10 by means of the fixing mechanism 44.

[0151] In addition, each pressing clamp 40 is fixed to the upper end and the two sides of the tray 10 with a pair of pressing members 41, 41 arranged along the upper end or the two sides of the glass laminate G.

[0152] Here, as described above, the back support member 12b is arranged with its surface 12b1 slightly inclined upwards and facing rearwards (i.e., the side opposite to the arrangement side on the side of the glass laminate G). Therefore, the pressing clamps 40, 40, 40, which are fixed to the upper end and the two side ends of the tray 10 respectively by means of the back frame 13c (more specifically, the upper side frame member 13c1 and the side side frame members 13c2, 13c2), are arranged with their surfaces slightly inclined downwards and facing rearwards (i.e., the side opposite to the side of the pressing member 41).

[0153] Therefore, in each pressing clamp 40, a pair of pressing members 41, 41 slides rearward (opposite to the side of the glass laminate G) and downward in an orthogonal direction relative to the main surface Ga of the glass laminate G (the plane opposite to the side of the surface 12b1 of the back support member 12b) under the weight of at least this pair of pressing members 41, 41 (more specifically, a pair of pressing members 41, 41 and the support member 42).

[0154] As a result, a pair of pressing members 41, 41 in each pressing clamp 40 abut against the upper end and the two side ends of the main surface Ga of the glass laminate G, and press down on the upper (upper end) and the sides (two side ends) of the glass laminate G.

[0155] Thus, the laminated glass G disposed on the tray 10 is held in a position by the pressing clamps 40, 40, 40 respectively fixed to the upper end and both sides of the tray 10, and is stacked and bundled in a state of standing against the tray 10.

[0156] Furthermore, as described above, after the tray 10 containing the laminated glass body G is stacked and bundled, it is moved upstream to the designated removal position P1 (refer to) of the specified subsequent process (cutting process, grinding process, etc.). Figure 1 Transportation. Furthermore, the extraction mechanism 20 (see reference) is used. Figure 1 The glass sheets G1 and G2 are removed one by one from the glass laminate G (removal process).

[0157] At this time, as the glass plate G1 is removed (removal operation), the thickness of the glass plate laminate G changes, and the position of the main surface Ga of the glass plate laminate G gradually moves toward the surface (support surface) 12b1 of the back support member 12b in the tray 10.

[0158] In each pressing clamp 40, a pair of pressing members 41, 41 move toward the surface (support surface) 12b1 under the action of the sliding mechanism 43, corresponding to the change in thickness. Therefore, the periphery of the glass laminate G can be pressed in approximately the same position at all times.

[0159] Thus, in each pressing clamp 40 of this embodiment, a pair of pressing members 41, 41 are respectively positioned to press the upper (upper end) and side (both sides) of the plate glass laminate G that is upright against the tray 10.

[0160] With this structure, the production of local sagging of the protective sheet G2 and curling of the area in the protective sheet G2 corresponding to the lower corner of the plate glass G1 can be more reliably suppressed by using a pair of pressing members 41, 41.

[0161] It should be noted that the external dimensions of each protective sheet G2 are generally set to be larger than the external dimensions of each glass plate G1.

[0162] Furthermore, at least one of the pair of pressing members 41 in each pressing clamp 40 is configured to abut against the end (more specifically, the upper end and both sides) of the plate glass G1 located on the side opposite to the surface (support surface) 12b1 of the back support member 12b in the plate glass laminate G, through the protective sheet G2.

[0163] With this structure, not only can the local sagging of the protective sheet G2 and the curling of the area in the protective sheet G2 corresponding to the lower corner of the plate glass G1 be suppressed, but the plate glass G1 (or plate glass G1 and protective sheet G2) on the tray 10 can also be stably maintained by the pressing member 41.

[0164] In addition, such as Figure 6 As shown, when either the pressing member 41 abuts against the end (upper end and both sides) of the glass plate G1, the pressing member 41 becomes a structure that contacts the edge Q of the end of the glass plate G1 through the protective sheet G2.

[0165] With this structure, excessive resistance from the pressing member 41 is avoided when removing a sheet of glass G1 and a protective sheet G2 from the glass laminate G by overcoming the elasticity of the pressing member 41 (more specifically, the strip brush 41b). Therefore, the pressing member 41 can stably maintain the configured posture of the sheet of glass G1 (or sheet of glass G1 and protective sheet G2) on the tray 10.

[0166] Moreover, such as Figure 5 As shown, in the pressing clamp 40 of this embodiment, as described above, it is configured such that a pair of pressing members 41, 41 slides under the weight of at least one pair of pressing members 41, 41 by means of the sliding mechanism 43, thereby causing the pair of pressing members 41, 41 to abut against the main surface Ga of the glass laminate G, but it is not limited to this.

[0167] For example, in order to adjust the pressing force of a pair of pressing members 41, 41 on the main surface Ga of the glass laminate G, it can be configured such that a counterweight Z of a specified weight is fixed to the second connecting member 43c and the pair of pressing members 41, 41 slide under the action of their own weight and the weight of the counterweight Z.

[0168] Thus, in the pressing clamp 40 of this embodiment, a pair of pressing members 41, 41 are structured to slide and move in a direction orthogonal to the main surface Ga of the glass laminate G by means of the sliding mechanism 43 under the weight of the pair of pressing members 41, 41 or the weight of the pair of pressing members 41, 41 and the counterweight Z.

[0169] With this structure, without the need for a complex moving mechanism, the operation in the aforementioned removal process can be carried out using a sliding mechanism 43 with a simple structure. As the thickness of the glass laminate G decreases, a pair of pressing members 41, 41 move toward the surface (support surface) 12b1 of the back support member 12b in the tray 10.

[0170] In addition, the sliding direction of the pair of pressing members 41, 41 based on the sliding mechanism 43 is orthogonal to the main surface Ga of the glass laminate G. Therefore, even if the thickness of the glass laminate G is reduced, the contact state of the pair of pressing members 41, 41 in the main surface Ga of the glass laminate G can always be kept constant.

[0171] As described above, the manufacturing method of the plate glass G1 in this embodiment is a manufacturing method of plate glass including the following removal process: from the plate glass laminate G, which is arranged in a state of standing against the surface (support surface) 12b1 of the back support member 12b in the tray 10, the plate glass G1 and the protective sheets G2 are sequentially removed one by one from the side (front side) opposite to the surface (support surface) 12b1. The laminate G1 is composed of multiple protective sheets G2, G2... and multiple plate glass G1, G1... which are respectively sandwiched between the multiple protective sheets G2, G2....

[0172] Here, during the removal process, the main surface Ga of the glass laminate G on the side opposite to the surface (support surface) 12b1 (front side) is pressed against the periphery by a pressing member 41 made of an elastic member.

[0173] Furthermore, the pressing member 41 is structured to move toward the surface (support surface) 12b1 side in accordance with the change in the thickness of the laminate G accompanying the removal of the laminate G1.

[0174] In addition, the glass plate G1 removal device 1 in this embodiment is a removal device that removes the glass plate G1 and the protective sheet G2 one by one from the glass plate laminate G, which is composed of multiple protective sheets G2, G2... and multiple glass plates G1, G1... which are respectively sandwiched with multiple protective sheets G2, G2....

[0175] Furthermore, the removal device 1 has the following structure: a tray 10, which holds the glass laminate G against the surface (support surface) 12b1 of the back support member 12b; a pressing member 41, which is made of an elastic member and presses the periphery of the main surface Ga of the glass laminate G on the side opposite to the surface (support surface) 12b1 of the tray 10; a removal mechanism 20, which removes the glass laminate G1 together with the protective sheet G2; and a sliding mechanism 43, which slides the pressing member 41 toward the surface (support surface) 12b1 in accordance with the change in the thickness of the glass laminate G accompanying the removal of the glass laminate G1.

[0176] According to the glass manufacturing method and the glass removal device 1 of this embodiment with such structure, the periphery of the glass laminate G is pressed by the pressing member 41, which is made of elastic member. Therefore, while suppressing the partial sagging of the protective sheet G2 and the curling of the area of ​​the protective sheet G2 corresponding to the lower corner of the glass laminate G1 by using the pressing member 41, the glass laminate G1 and the protective sheet G2 can be easily removed from the glass laminate G by the elastic deformation of the pressing member 41.

[0177] Furthermore, the pressing member 41 moves toward the surface (support surface) 12b1 of the back support member 12b in the tray 10 in response to the change in the thickness of the glass laminate G that accompanies the removal of the glass laminate G1. Therefore, even if the removal process is carried out and the thickness of the glass laminate G decreases, the pressing member 41 can stably press the periphery of the glass laminate G.

[0178] The above description illustrates one embodiment of the present invention, but the present invention is not limited to this embodiment and is merely an example. Of course, it can be implemented in various ways without departing from the spirit of the present invention. The scope of the present invention is indicated by the description of the patented technical solution, and also includes all equivalent meanings and modifications within the scope of the patented technical solution.

[0179] Industrial applicability

[0180] The present invention can be used in a method for manufacturing sheet glass including a removal process in which sheet glass and protective sheets are sequentially removed one by one from a sheet glass laminate that rests against a support surface of a tray, and in a sheet glass removal device for performing the removal process.

[0181] Explanation of reference numerals in the attached figures

[0182] 1. Removal device

[0183] 10 trays

[0184] 12b1 Surface (Support Surface)

[0185] 41 Pressing component

[0186] 41b strip brush

[0187] 43 Sliding Mechanism

[0188] G-plate glass laminate

[0189] G1 plate glass

[0190] G2 Protective Film

[0191] Ga Main side

[0192] Q edge

[0193] Z counterweight.

Claims

1. A method for manufacturing a pane of glass, comprising the following removal step: taking out panes of glass sequentially, one by one, from the pane of glass opposite to the side opposite to the support surface, a pane of glass consisting of a plurality of protective sheets and a plurality of panes of glass respectively sandwiched between the protective sheets, arranged in a state of upright resting against a support surface of a tray, along with the protective sheets. The method for manufacturing the glass plate is characterized by the following: In the extraction process, The periphery of the glass laminate is pressed down by a pressing member made of elastic material on the main surface of the side opposite to the supporting surface. The pressing member moves toward the support surface in accordance with the change in the thickness of the laminated glass body that accompanies the removal of the glass plate.

2. The method for manufacturing plate glass according to claim 1, characterized in that, The pressing member abuts against the end of the glass pane on the side opposite to the support surface in the glass pane laminate, through the protective sheet.

3. The method for manufacturing plate glass according to claim 1 or 2, characterized in that, Multiple pressing members are provided along one end of the plate glass laminate.

4. The method for manufacturing plate glass according to claim 1 or 2, characterized in that, The pressing member presses against the top and sides of the glass laminate.

5. The method for manufacturing plate glass according to claim 3, characterized in that, Of the plurality of pressing members, at least one pressing member contacts the edge of the end of the glass plate through the protective sheet.

6. The method for manufacturing plate glass according to claim 1 or 2, characterized in that, The pressing member slides in a direction orthogonal to the main surface of the glass laminate by means of a sliding mechanism under its own weight or the weight of the pressing member and the counterweight.

7. The method for manufacturing plate glass according to claim 1 or 2, characterized in that, The elastic component of the pressing member is composed of a strip brush or a rubber plate.

8. A device for removing sheet glass, comprising a sheet glass laminate consisting of a plurality of protective sheets and a plurality of sheet glass laminates respectively sandwiching the plurality of protective sheets, wherein the sheet glass and the protective sheets are sequentially removed one sheet at a time. The glass removal device is characterized in that, The glass removal device includes: A tray in which the laminated glass body is positioned upright against a support surface; The pressing member, which is made of elastic members, presses against the periphery of the main surface of the glass laminate opposite to the support surface of the tray. A removal mechanism that removes the glass plate and the protective sheet together; and A sliding mechanism that, in accordance with the change in the thickness of the laminate of glass panels accompanying the removal of the glass panels, causes the pressing member to slide toward the support surface.

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