JP3727300B2 - Chamfering device for plate material - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a chamfering device for chamfering the periphery of a plate material, and more particularly, to a chamfering device suitable for chamfering a large thin plate material used for a glass substrate for liquid crystal display, a plasma display panel or the like in a vertical state. Is.
[0002]
[Prior art]
Conventionally, plate materials (plate materials such as rare metals, silicon, glass for flat display) have been used in various fields. Among such plate materials, in recent years, demand for plate glass used for, for example, a liquid crystal display which is a thin plate material is increasing.
[0003]
The following description will be made by taking a plate glass used for the liquid crystal display or the like as an example. As this plate glass, for example, a glass substrate having a thickness of about 0.7 mm and a size of about 1000 mm × 1000 mm or less is often used. Such a glass substrate is manufactured by conveying a plate glass (mother glass) having a size that allows a plurality of glass substrates to be taken in a horizontal state, and performing processing such as cutting on the plate glass.
[0004]
Moreover, in order to protect the surface from the cullet generated in the process, the particles generated as a result of processing, etc., a method of attaching a protective sheet to the glass surface is generally employed for the plate glass thus conveyed. .
[0005]
As this type of prior art, there is a saddle type polishing machine that conveys a sheet glass in a posture leaning against a frame provided with rollers and polishes each edge of the sheet glass (for example, refer to Patent Document 1).
[0006]
In addition, as another conventional technique, there is a supply device that attempts to receive a plate glass laid on a horse on a conveyance surface in a horizontal state (see, for example, Patent Document 2).
[0007]
[Patent Document 1]
Japanese Patent No. 2623476 (page 3, FIGS. 1, 3 and 4)
[Patent Document 2]
Japanese Patent No. 2954101 (page 3, FIG. 3)
[0008]
[Problems to be solved by the invention]
By the way, in recent years, in the field of such a glass substrate for liquid crystal displays, the size of the plate glass has been reduced so that the yield can be improved in order to improve productivity, or it can be used for a larger liquid crystal display. There is a desire to increase the size. Increasing the size of the plate glass increases the number of glass substrates that can be taken from one plate glass, improving the yield, and making it possible to manufacture a glass substrate corresponding to a large liquid crystal display.
[0009]
In addition, there is a demand for improving the performance of displays and the like by making the glass substrate thinner, and the plate glass tends to be thinned. In addition, the demand for quality becomes stricter every year, and there is also a demand for cost reduction.
[0010]
However, as described above, in the apparatus that transports and processes the plate glass in a sideways state, even if the equipment is enlarged, it is difficult to support and handle the large and thin plate glass due to the weight of the plate glass. It is difficult to produce stably by causing cracks or breakage due to bending or the like.
[0011]
That is, as described above, when the plate glass is enlarged and thinned, it has become more difficult to horizontally transport and process a fragile glass material as in Patent Document 1. In addition, the system for transporting such a fragile plate glass with the conventional configuration becomes more complicated in structure, and the maintenance of adjustment and accuracy becomes complicated and difficult. In addition, it is difficult to minimize material breakage while balancing the influence of gravity and processing reaction force. In addition, with a conventional size glass plate, it was possible to handle manually when it was necessary, but manual intervention has become impossible due to the large and thin plate glass.
[0012]
In addition, in the case of a machine that transports and processes plate glass horizontally, the machine becomes large, so the installation area becomes large and the cost increases, and in addition, maintenance becomes difficult as the machine width increases. .
[0013]
Furthermore, as described above, when protecting the glass surface by attaching a protective sheet to the surface of such a plate glass, as described above, in the case of a thin plate glass that has been enlarged, the protection applied without breaking the plate glass It is difficult to peel off the sheet. Temporarily, when it conveys without sticking a protection sheet, with the support like the above-mentioned patent documents 2, it becomes impossible to maintain quality by damaging the glass surface with the roller which contacts.
[0014]
In addition, since there is a high possibility that such a plate glass will be cracked from the scratch if there is a scratch on the edge, chamfering such as edge chamfering and corner chamfering is performed on the edge of the plate glass by grinding or polishing. It has been broken. In addition, such plate glass is generally processed in the same manner as a chamfer for a mark (orientation flat) for distinguishing the front and back of the glass surface, the destination, the application, and the like. However, when the plate glass becomes larger and thinner, if chamfering is performed on the edge of the plate glass, the reaction force of the processing force from the grinding / polishing tool applied to the plate glass acts during the processing. The plate glass is bent by the processing reaction force, and it is very difficult to chamfer without breaking the plate glass that is bent in opposition to the reaction force.
[0015]
Then, this invention aims at providing the chamfering apparatus which can chamfer an edge part in the state which stood the enlarged thin board | plate material.
[0016]
[Means for Solving the Problems]
In order to achieve the above object, the present invention thin Supports the bottom edge of the plate Then transport in the transport direction A supporting device to Arranged along the conveying direction of the plate material, Applying fluid pressure to the surface of the plate material, Non-contact Supporting fluid guide and A front and rear end position of the plate material at the position of the support device, and a holding device provided with a control device for holding the front and rear of the plate material supported by the fluid guide and moving the plate material in the transport direction. A pusher that pushes up the plate material from below, pushes the plate material up from the support device with the pusher, holds the plate material in front and back by the holding device, and moves it in the transport direction by the holding device. Board The bottom Chamfering machine Is provided downstream of the support device. ing. By supporting the surface of the plate material in a non-contact state with the structure by the fluid pressure of the fluid guide in this way, the surface of the plate material that requires high quality is not touched by other than the fluid. It is possible to chamfer the end of a thin plate material that has been enlarged while maintaining the high quality of the surface of the plate material while receiving its own weight at the lower end of the plate material that does not cause any problems even if it comes into contact.
[0017]
Moreover, The machine tool is set at a fixed position, and the end portion can be chamfered while conveying the plate material.
[0018]
Also , The plate material can be prevented from being displaced due to the reaction force, and the plate material conveyed by the conveyance unit can be conveyed with higher accuracy, so that the chamfering process to the plate material can be performed more accurately and stably.
[0019]
further , Crusher By After transporting the plate material to the upstream side of the processing machine with the support member that can run, if the plate material is pushed up from the transport surface by the pusher and the front and rear of the plate material are clamped with the clamping device in this state, the plate material can be raised only with this clamping device. It can be transported with accuracy.
[0020]
Moreover, if the said processing machine is equipped with the grinding tool which grinds the edge part of the said board | plate material, and the grinding | polishing tool which grind | polishes the site | part of the board | plate material ground with this grinding tool, after grinding with a grinding tool, a grinding tool Therefore, the end portion can be chamfered quickly and continuously.
[0021]
In addition, if the grinding tool is provided with a corner chamfering tool for chamfering the corner of the plate material and an edge chamfering tool for chamfering the edge of the plate material, corner chamfering or mark chamfering to be processed into the corner of the plate material. And edge chamfering to be processed on each edge portion of the plate material can be performed continuously, and chamfering processing of the end portion of the plate material can be performed continuously and stably.
[0023]
Also, At the position where the fluid guide is provided, Plate material processed by the processing machine The If a conversion device that supports the fluid pressure of the fluid guide and rotates the plate material substantially in its plane is provided, the side of the plate material can be rotated (turned) without requiring a substantial transport distance of the plate material. However, chamfering can be performed on all sides.
[0024]
Furthermore, the conversion device has a lower support portion that supports a lower end corner portion of the plate material in a state of being placed on a conveyance path of the conveyance portion, and an upper portion that supports the upper end corner portion of the plate material at a diagonal position of the lower support portion. If a support unit and a rotary drive machine that rotates the plate material supported by the lower support unit and the upper support unit forward or backward are provided, the rotary drive machine is used to transport the transport unit and chamfer the plate material. Since the plate material in contact with only the diagonal position of the upper end corner and the lower end corner can be rotated forward or backward, the processed side of the plate is rotated while maintaining the surface quality of the plate. Can do.
[0025]
In addition, if the upper support portion is configured to be position-adjustable according to the size of the plate material, it is possible to rotate the plate material of various sizes forward and backward without damaging the surface quality. It can be easily stopped.
[0026]
Further, if the position adjustment of the upper support part is composed of the angle adjustment of the upper support part and the distance adjustment between the upper support part and the lower support part, the plate material of various sizes can be moved forward. Alternatively, it can be easily realized to cope with the rearward rotation.
[0027]
In addition, the fluid guide is composed of a lower fluid guide member that supports both lower surfaces of the plate member and an upper fluid guide member that supports an upper one surface of the plate member, and the other fluid plate is supported by the upper fluid guide. If the said conversion apparatus is arrange | positioned, the lower part of the standing board | plate material can be supported stably from both sides, and the upper part of the board | plate material supported from one side can be rotated to the front or back with a rotary drive machine.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a front view of a chamfering apparatus showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II shown in FIG. 1, and FIG. 3 is a sectional view taken along line III-III shown in FIG. 4 is a front view of the carry-in conveyor shown in FIG. 1, and FIG. 5 is a cross-sectional view taken along the line V-V shown in FIG. Also in the following embodiments, a plate glass will be described as an example of a plate material.
[0030]
As shown in FIGS. 1 and 2, the chamfering device 1 includes a processing machine 3 that processes the edge of the plate glass 2, a conversion device 5 that rotates (changes direction) the processed plate glass 2, and the plate glass 2. An unloader 4 that supports the plate glass 2 at the time of changing the direction and unloads the processed plate glass 2 is provided. The processing machine 3 is provided with a fluid guide 8 that conveys the plate glass 2 in an upright state. The fluid guide 8 is provided on a frame 7 provided on the base 6, a lower fluid guide 9 is provided on both lower sides of the plate glass 2, and an upper fluid guide 10 is provided on the upper one side. The plate glass 2 is conveyed from the right side to the left side in FIG.
[0031]
As shown in FIGS. 2 and 3, these fluid guides 9, 10 have rod-like fluid outflow members 11, 12 that are continuous in the conveying direction of the glass sheet 2 and are arranged in the horizontal direction at substantially equal intervals in the vertical direction. Is. The fluid outflow members 11 and 12 are provided with fluid outflow holes 13 and 14 (FIG. 1) at substantially equal intervals, and the plate glass 2 is supported in the vertical direction by the fluid discharged from the fluid outflow holes 13 and 14. ing. The surfaces of these fluid outflow members 11 and 12 are finished with the necessary accuracy so as not to contact the glass surface when the plate glass 2 passes through. Further, these fluid outflow members 11 and 12 are supported by a movable member 17 held by an adjustment bolt 16 on a fixed member 15 provided in the frame 7 like the fluid outflow member 11 shown in FIG. 3. The movable member 17 is configured such that a gap 18 between the movable member 17 and the glass sheet 2 can be adjusted by adjusting the adjustment bolt 16. In the fluid outflow members 11 and 12, a portion supported by the movable member 17 is a metal, and a support portion of the plate glass 2 is formed of a resin material or the like. A liquid flows out from the fluid outflow members 11 and 12 toward the surface of the plate glass 2 that conveys the passage space, and a liquid layer formed by the liquid maintains a predetermined gap 18 between the plate glass 2 and the plate glass. 2 surfaces are supported in a non-contact state.
[0032]
In this embodiment, as shown in FIGS. 1 and 2, only one side of the upper part of the plate glass 2 is supported by the fluid guide 10. In this fluid guide 10, the surface of the liquid is adjusted by adjusting the amount of liquid to flow out. The state of supporting the plate glass 2 in a non-contact manner by tension is maintained. The lower part of the glass sheet 2 is supported by a fluid guide 9 from both sides. In the fluid guide 9, the amount of fluid to flow out is balanced with the bending of the glass and the distortion of the glass itself by a clamping device, which will be described later, so that a fluid layer is formed on both sides to maintain a non-contact state. The fluid outflow pressure from the fluid guides 9 and 10 is configured to be managed by a flow rate adjusting valve, a pressure reducing valve, and the like within a necessary range, and the outflow amount can be controlled by the throttle valve.
[0033]
In this embodiment, a liquid (for example, water) is used as the fluid used for the fluid guides 9 and 10, but a dry method using a gas such as air is also possible. In this case, the gas may be jetted from both sides to the glass plate 2 to balance the pressure. Moreover, you may perform the finishing process of the plate glass 2 using a washing | cleaning liquid etc. for a liquid.
[0034]
In this embodiment, the upper part of the plate glass 2 is supported in a non-contact manner by the surface tension of the liquid flowing out from the fluid outflow hole 14 of the fluid outflow member 12 provided on one side, and the lower part of the plate glass 2 is both It is supported in a non-contact manner by the fluid ejected from the fluid outflow hole 13 of the fluid outflow member 11 provided in the above. Also good. For example, a method of realizing non-contact by arranging a fluid guide of a porous material with a slight inclination in the vertical direction, allowing liquid to ooze from one side, and balancing surface tension and glass weight, A method of realizing non-contact by arranging a fluid guide with a slight inclination in the vertical direction, allowing fluid (gas / liquid) to flow out from one side and balancing with the glass's own weight, and further, the fluid guide includes the plate glass A gas nozzle that generates a positive pressure and a negative pressure on the surface, and a method of supporting the plate glass in a non-contact manner by balancing the positive pressure and negative pressure gas layers generated by the gas nozzle with the weight of the plate glass, etc. Good.
[0035]
A support device 20 that supports the weight of the glass sheet 2 is provided below the fluid guide 8 configured as described above. In this embodiment, the upper surface of the support device 20 is a transport unit 21, and the transport unit 21 includes a belt conveyor 22 that is a support member that supports the weight of the plate glass 2 and can travel in the transport direction. The plate glass 2 is supported by the belt conveyor 22 with only the lower end in contact therewith.
[0036]
As shown in FIG. 4, the belt conveyor 22 is provided with a plurality of pulleys 23, a tension pulley 24, and a belt 25 hung between the pulleys 23 and 24. A plurality of pushers 26 that push up the plate glass 2 to be conveyed from below are provided in the conveyance direction of the plate glass 2. The pusher 26 has a front end position (left end in the figure) of the plate glass 2 close to the processing machine 3 and a rear side of the plate glass 2 at the three upstream positions so that the pusher 26 can be pushed up at two positions in the front and rear even when the size of the plate glass 2 changes. It is provided at the end position. The pusher 26 at the rear end position is selectively used. The pusher 26 is a cylinder mechanism whose tip extends and contracts vertically, and is attached to a bracket 27 provided on the frame 7 as shown in FIG. The pusher 26 is used together with a clamping device 38 (FIG. 1) described later.
[0037]
Further, as shown in FIG. 1, on the downstream side (left side in the figure) of the belt conveyor 22, a belt composed of pulleys 28 provided at both ends and belts 29 hung on these pulleys 28. A conveyor 30 is provided. By driving the driving pulley 28, the belt conveyor 30 can convey the sheet glass 2 by a predetermined amount in a non-contact manner with the sheet glass 2 standing and supporting the lower end. The conversion device 5 is provided at the rear end of the belt conveyor 30.
[0038]
Furthermore, in this embodiment, after rotating the glass 2 after one side processing with the conversion device 5 (direction change), when returning the plate glass 2 upstream with the clamping device 38 mentioned later, the plate glass 2 contacts the processing machine 3 In order to prevent this, the function of holding the plate glass 2 by the holding device 38 after lifting the plate glass 2 from the transport line 150 is provided.
[0039]
The unloader 4 provided on the downstream side of the conversion device 5 is provided with a plate-like fluid guide 31 that is different from the fluid guide 8. The fluid guide 31 is provided with a guide plate 33 so as to be substantially upright on a frame 32 of the base 6, and fluid ejection holes 34 are provided in the guide plate 33 at predetermined intervals. And it is comprised so that the plate glass 2 may be supported with the surface tension of the liquid by making a liquid flow out from this fluid ejection hole 34. FIG. The surface of the guide plate 33 is adjusted to be smooth.
[0040]
The belt conveyor 35 of the transport unit 21 provided in the unloader 4 includes a pulley 36 provided at both ends, and a belt 37 hung on the pulley 36. The conveyor 35 can also drive the plate glass 2 by a predetermined amount in a non-contact manner by driving the pulley 36 on the driving side while keeping the plate glass 2 upright and supporting the lower end.
[0041]
In this embodiment, the support member of the transport unit 21 is configured by belt conveyors 22, 30, and 35. However, these belt conveyors 22, 30, and 35 include roller conveyors and traveling carriages (including receiving members that can travel). ) Etc. may be substituted.
[0042]
Further, in this embodiment, in addition to the conveyance at a predetermined speed by the belt conveyors 22 and 30 which are conveyance sections of the plate glass 2, as shown by a two-dot chain line in FIG. A clamping device 38 that conveys with accuracy is provided.
[0043]
6 is a plan view of the clamping device shown in FIG. 1, and FIG. 7 is a front view of the clamping device. 8 is a cross-sectional view taken along line VIII-VIII shown in FIG. 6, and FIG. 9 is a view taken along arrow IX shown in FIG.
[0044]
As shown in FIGS. 6 and 7, the clamping device 38 has a claw member 41 that clamps the front and rear of the glass sheet 2, and the claw member 41 is dimensionally adjusted according to the size of the long and short sides of the glass sheet 2. An adjusting cylinder 42 is provided. The claw member 41 is provided in a claw cylinder 43 that can be changed between a state where the claw member 41 is advanced from the side onto the conveyance line 150 of the plate glass 2 and a state where the claw member 41 is retracted from the conveyance line 150. The claw cylinder 43 is provided on separate moving members 44, and these moving members 44 are connected by the adjusting cylinder 42. By expanding and contracting the adjustment cylinder 42, the distance between the claw members 41 can be adjusted to the size of the glass sheet 2. In the present embodiment, the plate glass 2 is sandwiched by the claw member 41, but a clamp member capable of sandwiching the plate glass 2 is provided in place of the claw member 41, and the outer peripheral portion of the glass that does not have any problem even if contacted is provided. It is good also as a system to clamp.
[0045]
A guide member 45 is provided on the side of the moving member 44 opposite to the claw member. The guide member 45 is configured to be movable in the conveying direction of the glass sheet 2 along the rail 46 provided on the frame 7.
[0046]
Further, the claw member 41 on the left side shown in the figure is configured to sandwich the front and rear direction of the glass sheet 2 by the clamp cylinder 47. The adjustment cylinder 42 can cope with a large change such as a change in the long side and the short side of the plate glass 2, and can be finally held by the clamp cylinder 47. It can be held stably.
[0047]
As shown in FIGS. 7 and 8, a bracket 48 is provided on one side of the moving member 44, and a timing belt 50 is fixed to the bracket 48 by a fixing member 49. The timing belt 50 is hung on a pulley 51 shown and a pulley (not shown) provided on the right side of the drawing. By rotating the pulley 51, the timing belt 50 is moved, whereby the bracket 48 is moved, and the claw member 41 is moved together with the moving member 44 in the conveying direction of the plate glass 2.
[0048]
As shown in FIG. 9, the pulley 51 is connected to a driven pulley 52 fixed on the frame 7 side by a shaft 53. The driven pulley 52 is connected to a driving pulley of a driving motor 55 as shown in FIG. 54. By numerically controlling the drive motor 55 with the control device 39, the claw member 41 sandwiching the front and back of the glass sheet 2 can be moved accurately and reliably at a programmed speed. In this embodiment, the timing belt 50 is used to move the claw member 41 accurately, but the claw member 41 may be accurately moved by a configuration such as a rack and pinion other than the timing belt 50.
[0049]
The conveyance of the plate glass 2 by such a clamping device 38 is performed as follows. When the sheet glass 2 is conveyed to the upper portion of the pusher 26 at the front end position by the belt conveyor 22 (FIG. 4), the plate glass 2 is pushed up by a predetermined amount by the pusher 26 at the front end position and the pusher 26 at the rear end position. At this time, the conveyance position of the plate glass 2 by the belt conveyor 22 is detected by a sensor (not shown), and the push-up amount of the pusher 26 is controlled by the control device 39.
[0050]
Then, both ends of the vertical glass plate 2 pushed up from the belt conveyor 22 are clamped by the claw members 41 of the clamping device 38 (FIG. 1), and the glass plate 2 is processed at a predetermined speed programmed by the clamping device 38. Transport to side 3. Since the sheet glass 2 is conveyed only by the sandwiching device 38 in this manner, the lower end of the sheet glass 2 can always be conveyed at a programmed high speed so that the processing of the sheet glass 2 by the processing machine 3 is stable. Can be done. In addition, at this time, the plate glass 2 cancels the buckling force generated by the clamping device 38 by the fluid pressure of water or the like ejected from the lower fluid guide 9 provided on both sides. Correcting and preventing buckling of the steel can be performed accurately.
[0051]
In this embodiment, the pusher 26 lifts and conveys the sheet glass 2 from the belt conveyor 22. However, depending on the processing contents and conditions, the pusher 26 may process the sheet glass 2 while conveying it.
[0052]
FIG. 10 is a schematic front view illustrating an example of a method for conveying a plate glass to the processing machine illustrated in FIG. 1, and FIG. 11 is a side view of the schematic diagram illustrated in FIG. 10. 12 is a front view showing a grinding tool of the processing machine shown in FIG. 1, and FIG. 13 is a side view of the grinding tool shown in FIG. 14 is a front view showing a polishing tool of the processing machine shown in FIG. 1, and FIG. 15 is a sectional view taken along the line XV-XV shown in FIG.
[0053]
As shown in FIGS. 10 and 11, the processing machine 3 shown in FIG. 1 includes a corner chamfering tool 61 that performs corner chamfering on the corner of the sheet glass 2 to be conveyed, and an edge 60 on each side of the sheet glass 2 with a predetermined cross-sectional shape. A grinding tool 62 for chamfering by grinding (for example, in an R shape) and a polishing tool 63 for polishing the edge 60 of the plate glass 2 ground by these are provided. A corner chamfering tool 61, a grinding tool 62, and a polishing tool 63 are provided on the conveyance line 150 of the plate glass 2 from the upstream side to the downstream side in the conveyance direction of the plate glass 2. In the corner chamfering tool 61, a mark 64 indicated by a two-dotted line and a corner chamfering 65 painted black are processed on the plate glass 2. In this figure, the grinding tool 62 chamfers the edge 60 on the lower side of the glass sheet 2 in the longitudinal direction. In the polishing tool 63, the portion processed by the grinding tool 62 is polished in the longitudinal direction.
[0054]
In this embodiment, the grinding tool 62 and the polishing tool 63 are grindstones having a circular cutting surface, and the cross section thereof follows the shape of the edge of the plate glass 2 to be processed as shown in FIG. It has a shape. In this embodiment, U-grooves are formed around the grindstone in order to perform rounded chamfering. In the drawings, it is exaggerated. In this example, as processing contents to be performed on each side of the plate glass 2, grinding and polishing (including polishing / mirror surface processing) of each side, chamfering of each corner, orientation flat processing, and the like are shown. Further, although a grindstone is shown as a tool, a tool capable of grinding / polishing such as a belt sander may be applied.
[0055]
As shown in FIGS. 12 and 13, the corner chamfering tool 61 and the grinding tool 62 are provided on the left and right of a support base 66 fixed to the frame 7. The corner chamfering tool 61 is provided on the upstream side of conveyance of the glass sheet 2, and the grinding tool 62 is provided on the downstream side.
[0056]
The corner chamfering tool 61 is provided with a grindstone 67 that can move up and down together with a motor 68. The grindstone 67 is moved up and down by a guide member 70 that moves up and down along a lifting rail 69 provided on the support base 66. The guide member 70 includes a base plate 72 provided with a guide 71 that moves up and down along the elevating rail 69, and a motor mounting plate 73 provided on an upper portion of the base plate 72 (right side in FIG. 12). Yes. A motor 68 is attached to the motor attachment plate 73. The guide member 70 is moved up and down by a lift motor 74 provided on the upper portion of the support base 66.
[0057]
A horizontal slide rail 75 is provided between the base plate 72 and the motor mounting plate 73, and a guide 76 that slides along the slide rail 75 is provided on the motor mounting plate 73. The base plate 72 is provided with a motor 77 that slides the motor mounting plate 73 in the horizontal direction. The grindstone 67 can be moved on the conveyance line 150 of the plate glass 2 by sliding the motor mounting plate 73 in the front-rear direction of the drawing.
[0058]
The grinding tool 62 provided on the downstream side of the support base 66 is also provided with a motor 80 having a grindstone 79 provided at the tip thereof so that it can be moved up and down. The raising and lowering of the grindstone 79 is also performed by a guide member 82 that moves up and down along a lifting rail 81 provided on the support base 66. The guide member 82 includes a base plate 84 provided with a guide 83 that moves up and down along the elevating rail 81, and a motor mounting plate 85 provided on an upper portion (left side in FIG. 12) of the base plate 84. A motor 80 is fixed to the motor mounting plate 85. The guide member 82 is moved up and down by a lift motor 86 provided on the upper portion of the support base 66.
[0059]
A horizontal slide rail 87 is provided between the base plate 84 and the motor mounting plate 85, and a guide 88 that slides along the slide rail 87 is provided on the motor mounting plate 85. The base plate 84 is provided with a motor 89 that slides the motor mounting plate 85 in the horizontal direction. The grindstone 79 can be moved on the conveyance line 150 of the plate glass 2 by sliding the motor mounting plate 85 in the front-rear direction of the drawing.
[0060]
As shown in FIGS. 14 and 15, the polishing tool 63 is supported by a support member 92 provided on the frame 7. The polishing tool 63 is provided with a casing 94 that can be swung by a support shaft 93 provided on a support material 92, and a grindstone 95 that comes into contact with the lower part of the glass sheet 2 from the casing 94. Reference numeral 96 denotes a bearing. Inside the casing 94, there are provided pulleys 97 provided at both ends, belts 98 hung on these pulleys 97, and a motor 99 for driving one pulley 97. By driving the motor 99, the grindstone 95 is rotationally driven via the pulley 97 and the belt 98.
[0061]
The casing 94 is provided with an arm member 100, and the tip of the arm member 100 is engaged with the pressing force adjusting member 101. The pressing force adjusting member 101 suppresses the swing of the arm member 100 with a predetermined force, and the pressing force adjusting member 101 adjusts the pressure at which the grindstone 95 contacts the plate glass 2. As the pressing force adjusting member 101, an elastic member such as a spring is used. The polishing state can be adjusted by adjusting the contact pressure.
[0062]
16 is a front view of the conversion device shown in FIG. 1, FIG. 17 is a side view of the conversion device, FIG. 18 is a cross-sectional view taken along line XVIII-XVIII shown in FIG. 20 is a cross-sectional view taken along the line XX-XX shown in FIG. 18, FIG. 21 is a view taken along arrow XXI shown in FIG. 20, FIG. 22 is an enlarged view taken along line XXII shown in FIG. is there. FIG. 24 is a schematic diagram showing a procedure for converting plate glass by the conversion apparatus shown in FIG. The processing to the end of the plate glass 2 by the processing machine 3 described above must be performed not only on one side but on four sides. Therefore, in this embodiment, after one side of the plate glass 2 is processed, the other three sides are sequentially processed by changing 90 degrees by the conversion device shown in these drawings.
[0063]
As shown in FIGS. 16 and 17, the conversion device 5 shown in FIG. 1 described above is configured to rotate the plate glass 2 on the conveyance line 150 by 90 degrees on the same plane and convert the plate glass 2 to a position serving as a rotation center. 110 is provided, and an arm member 111 is provided above the driving machine 110. As shown in FIG. 1, the conversion device 5 is provided on the opposite side (front side of FIG. 1) of the upper fluid guide 10 that supports the upper portion of the plate glass 2 in a non-contact manner, and is supported by the fluid guides 9 and 10. The plate glass 2 is arranged so as to be rotated 90 degrees forward substantially in the plane thereof.
[0064]
The driving device 110 is provided with a rotating member 114 that is rotatably supported by a bearing 113 provided on a support member 112, and a motor 116 that rotates the rotating member 114 via a belt 115. Yes. With this motor 116, the arm member 111 can be rotated in the conveying direction of plate glass 2 or in the reverse direction, as shown by a two-dot chain line in FIG.
[0065]
As shown in FIG. 18, the rotating member 114 has a double shaft structure, and the outer shaft 117 is supported by the bearing 113. Further, the arm member 111 is integrally provided on the outer shaft 117. The inner shaft 118 is provided so as to be rotatable and slidable inside the outer shaft 117. One end of the inner shaft 118 is provided with an engaging member 119 that engages with a corner of the glass sheet 2, and the other end is provided with a cylinder 120 that slides the inner shaft 118 in the axial direction within the outer shaft 117. It has been. In this cylinder 120, an engagement block 142 provided at the tip is engaged with an engagement rod 143 provided at the end of the inner shaft 118 in a mutually rotatable state. By extending the cylinder 120, the engaging member 119 moves onto the conveying line 150 of the glass sheet 2, and by retracting the cylinder 120, the engaging member 119 can be removed from the conveying line. Thus, the engagement member 119 can be moved back and forth by the cylinder 120 via the inner shaft 118.
[0066]
As shown in FIG. 19, the engagement member 119 is provided with an L-shaped receiving material 121 that engages with the front corner of the plate glass 2 that is transported on the transport line 150. The receiving member 121 is made of resin or the like, and is fixed to the engaging member 119 with a bolt 122.
[0067]
By the way, the said plate glass 2 differs in a long side and a short side, and a magnitude | size changes according to the use. Therefore, the conversion device 5 is provided with a mechanism for converting the glass plates 2 having different sizes.
[0068]
Between the inner shaft 118 and the outer shaft 117 of the double shaft, there is provided a brake device 123 that can be changed between a separately rotatable state and an integrally rotated state. That is, the outer shaft 117 and the inner shaft 118 rotate simultaneously when the brake device 123 is connected, and the outer shaft 117 and the inner shaft 118 rotate separately when released.
[0069]
As shown in FIG. 18, the brake device 123 is provided at a position where the inner shaft 118 and the outer shaft 117 overlap each other. As shown in FIG. 20, in the brake device 123, the fixed member 126 and the movable member 128 constituting the brake device 123 are provided with an axial cutout 124, and the fixed member 126 provided with the cutout 124. By tightening the movable member 128 and the movable member 128, the frictional force between the outer shaft 117 and the notch 124 is integrally connected, and by loosening, the frictional force between the outer shaft 117 and the notch 124 is weakened to rotate separately. It is configured to be movable. That is, it is configured such that it can be connected or released by friction.
[0070]
As shown in FIGS. 20 and 21, the brake device 123 is provided with a fixed member 126 and a movable member 128 connected to the fixed member 126 by a support shaft 127 on the outer periphery of the outer shaft 117. The fixing member 126 maintains the horizontal state (constant angle) of the lower surface by a stopper 125 provided on the support material 112. The movable member 128 is provided with a bolt 130 that is fixed to the fixed member 126 and a spring 129 that is positioned between the bolt 130 and the movable member 128 and presses the movable member 128 toward the fixed member 126. The fixed member 126 is provided with a release cylinder 131 that moves the movable member 128 from the fixed member 126 side to the anti-fixed member side against the force of the spring 129.
[0071]
Therefore, by extending the release cylinder 131, the movable member 128 is opposed to the force of the spring 129 to rotate around the support shaft 127, and the connection between the outer shaft 117 and the notch 124 due to friction is released. Can do. As a result, the outer shaft 117 provided with the arm member 111 can be rotated separately from the inner shaft 118, and the engaging member 119 provided at the tip of the inner shaft 118 is removed from the processing conveyance line 150 by the cylinder 120. (Retreat) can be.
[0072]
On the other hand, a block 139 is fixed to the inner shaft 118, and a slide shaft 140 is provided on the block 139. The slide shaft 140 is attached so as to be slidable in the axial direction along a slide hole 141 provided in the fixing member 126. The slide of the block 139 is performed when the cylinder 120 is contracted and the slide shaft 140 of the block 139 slides in the slide hole 141 of the fixing member 126 together with the inner shaft 118.
[0073]
By providing the block 139 that slides together with the inner shaft 118 in this way, as described above, the inner shaft 118 that slides along the slide hole 141 of the fixing member 126 maintained in a horizontal state by the stopper 125 is always fixed. 126 and the circumferential direction angle are the same. Thereby, even if there is a change in the angle of the arm member 111 due to a difference between the long side and the short side of the glass plate 2 or a change in the glass size, the engaging member 119 can be adjusted to the L-shaped posture in the vertical direction and the horizontal direction. .
[0074]
As shown in FIGS. 22 and 23, the diagonal position of the plate glass 2 is locked to the distal end of the arm member 111 by an L-shaped receiving member 121 provided on the engaging member 119 of the rotating member 114. An upper engaging member 132 is provided. The upper engagement member 132 is provided on an adjustment member 134 of a slide block 133 that is slidable in the axial direction of the arm member 111. By adjusting the position of the slide block 133, it is possible to cope with the size change of the plate glass 2. The adjustment member 134 can advance and retract the upper engagement member 132 on the conveyance line 150 of the plate glass 2 by expansion and contraction of the expansion / contraction cylinder 135 provided in the slide block 133.
[0075]
The upper engagement member 132 can be moved in the axial direction of the arm member 111 by a guide cylinder 136 provided on the adjustment member 134, and the diagonal position of the glass sheet 2 can be adjusted by the engagement member 119 and the upper engagement member 132. It is configured to lock. The guide cylinder 136 has a stroke larger than the difference between the long side and the short side of the plate glass 2, so that even if the plate glass 2 is reversed (turned) by 90 degrees, it is possible to cope without adjusting the slide block 133. Can be. The upper engaging member 132 is also formed in an L shape. The upper engaging member 132 is configured so that a weight 137 provided at one end always maintains an L-shaped posture in the vertical and horizontal directions even when the angle of the arm member 111 changes. A receiving member 138 made of resin or the like is fixed to a portion of the upper engaging member 132 that engages with the rear corner of the glass plate.
[0076]
Based on FIG. 24, the 90 degree direction change of the plate glass 2 by the conversion apparatus 5 comprised in this way is demonstrated. First, before the lower end of the front end of the glass sheet 2 conveyed by the belt conveyor 30 is positioned on the side of the engaging member 119 of the rotating member 114, the engaging member 119 is advanced onto the conveying line 150 by the cylinder 120 (FIG. 18). ). When the engaging member 119 engages with the front end lower portion 140 of the glass sheet 2 (FIG. 24), the angle is set so that the position of the rear end upper portion 141 of the glass sheet 2 is based on the data of the sheet glass 2 conveyed in advance. The upper engaging member 132 of the arm member 111 is advanced onto the transport line 150 by the telescopic cylinder 135 (FIG. 22).
[0077]
Then, the upper engagement member 132 is slid in the axial direction by the guide cylinder 136 and engaged with the rear end upper portion 141 of the glass sheet 2 (FIG. 24). Thereby, the plate glass 2 is in a state in which the diagonal positions of the lower front end and the upper rear end are sandwiched between the engaging member 119 and the upper engaging member 132. By rotating the rotating member 114 in this state, the plate glass 2 is turned 90 degrees onto the belt conveyor 35 while maintaining a state of being sandwiched between the engaging member 119 and the upper engaging member 132. In addition, at the time of this conversion, the non-contact state of the surface is maintained by the fluid guides 8 and 31, so that the conversion can be performed while maintaining the high quality of the surface of the plate glass 2.
[0078]
After the plate glass 2 is changed in this way, the upper engagement member 132 is opened by the guide cylinder 136, and then the engagement member 119 and the upper engagement member 132 are retracted from the conveyance line 150. And after conveying the plate glass 2 to the upstream side of the processing machine 3 in the reverse direction by the belt conveyors 35, 30 and the clamping device 38, the unprocessed side that is on the lower side is processed similarly to the processing of the first side. In this embodiment, all the sides can be machined by repeating this operation until the machining of the four sides is completed.
[0079]
According to the chamfering apparatus 1 configured as described above, the edge of the plate glass 2 can be chamfered while maintaining the non-contact state with the surface and suppressing the bending, so that the size becomes large. Stable chamfering can be performed on the thin plate glass 2. Moreover, since all the sides of the plate glass 2 can be processed by one processing machine 3 and one conversion device 5, the chamfering device 1 that can be installed in a small installation space can be configured.
[0080]
FIG. 25 is a schematic view showing a different arrangement example of the chamfering apparatus shown in FIG. In the embodiment described above, since one processing machine 3 and one conversion device 5 are combined, after each side of the plate glass 2 is processed, the direction is changed by 90 degrees by the conversion device 5. These three sides are sequentially processed, and it takes time to return the converted plate glass 2 in the reverse direction.
[0081]
Therefore, when the installation space is large, as shown in the figure, the above-described processing machine 3 and the conversion device 5 are alternately provided, and after one side is processed by the processing machine 3, the conversion device 5 converts 90 degrees, If the next side is processed by the processing machine 3 and then converted by 90 degrees by the conversion device 5 and this is performed sequentially until the processing of the four sides is completed, the time to return the plate glass 2 to the reverse direction is reduced. Thus, productivity can be increased.
[0082]
Further, when there is a restriction on the installation space, the combination of one processing machine 3 and one conversion device 5 described above may be arranged in parallel so that chamfering can be performed simultaneously on each line. . In this case, even if one line goes down, the production can be continued on the other line, so that the production can be continued. What is necessary is just to change suitably the combination of such a processing machine 3 and the conversion apparatus 5 according to installation space or other conditions.
[0083]
In addition, in the said embodiment, when chamfering the edge part of the plate glass 2, the plate glass 2 side clamped by the clamping apparatus 38 is sent, and the tools 61-63 are fixed to a fixed position, It may be a method in which the tool 61 to 63 side is sent while being fixed at a fixed position, both of which can be processed similarly, and may be selected according to installation conditions and the like.
[0084]
In the above-described embodiment, an example in which each side of the glass sheet 2 is processed has been shown. However, two opposing sides and four sides of the glass sheet 2 can be simultaneously performed, and may be appropriately employed depending on installation space, conditions, and the like. That's fine.
[0085]
Furthermore, the above-described embodiment is an embodiment, and various modifications can be made without departing from the scope of the present invention, and the present invention is not limited to the above-described embodiment.
[0086]
【The invention's effect】
The present invention is implemented in the form described above, and has the following effects.
[0087]
It becomes possible to stably perform chamfering on the end portion of a large thin plate material while maintaining high quality in a state where the surface of the plate material is not in contact with the structure.
[Brief description of the drawings]
FIG. 1 is a front view of a chamfering apparatus showing an embodiment of the present invention.
2 is a cross-sectional view taken along the line II-II shown in FIG.
3 is a cross-sectional view taken along the line III-III shown in FIG.
4 is a front view of the carry-in conveyor shown in FIG. 1. FIG.
FIG. 5 is a cross-sectional view taken along the line VV shown in FIG.
6 is a plan view of the clamping device shown in FIG. 1. FIG.
7 is a front view of the clamping device shown in FIG. 1. FIG.
8 is a cross-sectional view taken along the line VIII-VIII shown in FIG.
FIG. 9 is a view on arrow IX shown in FIG. 6;
10 is a schematic front view showing an example of a method for conveying plate glass to the processing machine shown in FIG.
11 is a side view of the schematic diagram shown in FIG.
12 is a front view showing a grinding tool of the processing machine shown in FIG. 1; FIG.
13 is a side view of the grinding tool shown in FIG.
14 is a front view showing a polishing tool of the processing machine shown in FIG. 1; FIG.
15 is a cross-sectional view taken along the line XV-XV shown in FIG.
16 is a front view of the conversion device shown in FIG. 1. FIG.
17 is a side view of the conversion device shown in FIG. 16. FIG.
18 is a cross-sectional view taken along the line XVIII-XVIII shown in FIG.
19 is an enlarged view taken along arrow XIX shown in FIG.
20 is a cross-sectional view taken along the line XX-XX shown in FIG.
FIG. 21 is a view on arrow XXI shown in FIG. 20;
22 is an enlarged view of the XXII part shown in FIG.
23 is a view on arrow XXIII shown in FIG.
24 is a schematic view showing a plate glass conversion procedure by the conversion device shown in FIG. 16. FIG.
25 is a schematic diagram showing a different arrangement example of the chamfering device shown in FIG.
[Explanation of symbols]
1 ... Chamfering device
2 ... Plate glass
3 ... Processing machine
4 ... Unloader
5 ... Conversion device
6 ... Base
7 ... Frame
8 ... Fluid guide
9 ... Lower fluid guide
10 ... Upper fluid guide
11, 12 ... Fluid outflow member
13, 14 ... Fluid outflow hole
15 ... Fixing member
16 ... Adjustment bolt
17 ... Moveable member
18 ... Gap
20 ... Supporting device
21 ... Conveying section
22 ... belt conveyor
23, 28 ... pulley
25, 29 ... Belt
26 ... Pusher
30 ... belt conveyor
31 ... Fluid guide
32 ... Frame
33 ... Guide plate
34 ... Fluid ejection hole
35 ... belt conveyor
36 ... pulley
37 ... Belt
38 ... Clamping device
39 ... Control device
41 ... Claw member
42 ... Adjustment cylinder
43 ... Claw cylinder
44 ... Moving member
45 ... Guide member
46 ... Rail
47 ... Clamp cylinder
48 ... Bracket
49. Fixing member
50 ... Timing belt
51 ... pulley
52. Driven pulley
53 ... axis
54 ... Driving pulley
55 ... Drive motor
60 ... Rim
61 ... Corner chamfering tool
62 ... Grinding tool
63 ... Abrasive tool
64 ... Mark
65 ... Corner chamfering
66 ... Support stand
67 ... Whetstone
68 ... motor
69 ... lift rail
70 ... Guide member
71 ... Guide
72 ... Base plate
73 ... Motor mounting plate
74 ... Lifting motor
75 ... Slide rail
76 ... Guide
77 ... Motor
79 ... Whetstone
80 ... motor
81 ... Raising / lowering rail
82 ... Guide member
83 ... Guide
84 ... Base plate
85 ... Motor mounting plate
86 ... Lifting motor
87 ... Slide rail
88 ... Guide
89 ... Motor
92 ... Support frame
93 ... Support shaft
94. Casing
95 ... Whetstone
96 ... Bearing
97 ... pulley
98 ... Belt
99 ... Motor
100: Arm member
101 ... Pressure adjusting member
110 ... Driver
111 ... Arm member
112 ... Support material
113 ... Bearing
114 ... Rotating member
115 ... Belt
116: Motor
117 ... Outer shaft
118 ... Inner shaft
119 ... engaging member
120 ... Cylinder
121 ... Receiver
123 ... Brake device
124 ... Notches
125 ... Stopper
126 ... Fixing member
127 ... support shaft
128 ... movable member
131 ... Release cylinder
132 ... Upper engaging member
133 ... slide block
134. Adjustment member
135 ... telescopic cylinder
136 ... Guide cylinder
137 ... Weight
138 ... Receiver
139 ... Block
140 ... slide shaft
141 ... slide hole
142 ... engagement block
143 ... engagement rod
150 ... Conveying line

Claims (8)

A supporting device for conveying the lower end of the thin erected condition sheet supporting and in the transport direction, disposed along the conveying direction of the plate material, vertically to the plate member by the action of fluid pressure to the surface of the sheet material A fluid guide that is supported in a non-contact state in this state, sandwiching the front and rear of the plate material supported by the fluid guide, and providing a clamping device including a control device that moves the plate material in the transport direction. A pusher that pushes up the front end position and the rear end position of the plate material from below, pushes the plate material up from the support device with the pusher, clamps the front and back of the plate material with the clamping device, and moves in the transport direction with the clamping device sheet of chamfering device provided on the downstream side of the supporting device a machining machine for chamfering the lower end of the plate material that makes.   The chamfering apparatus for a plate material according to claim 1, wherein the processing machine includes a grinding tool for grinding an end portion of the plate material, and a polishing tool for polishing a portion of the plate material ground by the grinding tool. The chamfering device for a plate material according to claim 2 , wherein a corner chamfering tool for chamfering a corner portion of the plate material and a chamfering tool for chamfering an edge portion of the plate material are provided on the grinding tool. A position provided with the fluid guide, the processed plate material in the processing machine is supported by the fluid pressure of the fluid guide, substantially plate according to claim 1, further comprising a conversion device for rotating in its plane of the plate member Chamfering device. A lower support portion for supporting the lower end corner portion of the plate material in a state where the conversion device stands on the conveyance path of the conveyance portion, and an upper support portion for supporting the upper end corner portion of the plate material at a diagonal position of the lower support portion. 5. A plate chamfering device according to claim 4 , further comprising: a lower drive portion; and a rotary drive device for rotating the plate material supported by the upper support portion forward or backward. The chamfering device for a plate material according to claim 5 , wherein the upper support portion is configured to be position-adjustable according to a size of the plate material. The chamfering device for a plate material according to claim 6, wherein the position adjustment of the upper support part includes an angle adjustment of the upper support part and a distance adjustment between the upper support part and the lower support part. The fluid guide is composed of a lower fluid guide member that supports both lower surfaces of the plate material and an upper fluid guide member that supports an upper one surface of the plate material, and the conversion device is used as the other plate material supported by the upper fluid guide. The chamfering device for a plate material according to claim 4, wherein:

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