TWI608900B - Plate body processing method and plate body processing device - Google Patents

Description

Method for processing plate body and processing device for plate body

The present invention relates to a method for producing a groove for polishing a resin-bonded vermiculite, a resin-bonded vermiculite, a processing device for a plate-shaped body, and a method for processing a plate-shaped body.

In a glass plate for an FPD (Flat Panel Display) which is a plate-like body used in a liquid crystal display or a plasma display, the molten glass is formed into a plate shape, and then cut into specific parts by a cutting device. Rectangular sized glass plate. Then, the chamfering device of the chamfering device (the processing device for the plate-like body) disclosed in Patent Document 1 or the like is chamfered, and the edge portion of the glass plate is ground and chamfered.

Further, the chamfering device described in Patent Document 2 includes a chamfering vermiculite, a cooling liquid (grinding fluid) injection nozzle, and the like. The chamfering vermiculite system rotates around an axis parallel to the axis orthogonal to the main surface of the glass sheet, and the direction of rotation of the chamfer is set to a direction opposite to the conveying direction of the glass sheet. Further, in the chamfered vermiculite, an arc-shaped grinding groove is formed on the outer peripheral surface of the grinding surface, and the edge portion of the glass plate is ground into a circular arc shape by the grinding groove.

Further, in the chamfering device of the plate-like body, a metal-bonded vermiculite for grinding (roughing) and a resin for grinding (precision machining) bonded to a vermiculite are known as disclosed in Patent Document 3. According to the chamfering device, the edge portion of the plate-like body is ground by the metal-bonded vermiculite to form a chamfered surface on the edge portion, and then the chamfered surface is polished by resin-bonded vermiculite.

A polishing groove for abutting the chamfered surface of the plate-like body is formed on the outer peripheral surface of the resin-bonded vermiculite of Patent Document 3.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2002-160147

[Patent Document 2] Japanese Patent Laid-Open Publication No. 2009-172749

[Patent Document 3] Japanese Patent Laid-Open Publication No. 2001-71244

In recent years, in the chamfering process of the edge portion of the plate-shaped body, the demand for finishing is improved due to an improvement in quality requirements. In the case of finishing by the resin-bonded vermiculite disclosed in Patent Document 3, it is necessary to form a groove shape that matches the shape of the edge portion of the plate-like body. Further, in order to perform finishing with high quality, it is necessary to accurately align the groove of the finished vermiculite with the position of the edge portion of the plate-shaped body. This adjustment work requires proficiency and is time consuming.

The present invention has been made in view of such circumstances, and an object of the present invention is to provide a resin-bonded vermiculite which can be formed into a groove shape in which the polishing groove of the end portion of the polishing plate-like body is formed to conform to the shape of the edge portion of the plate-like body. A method for producing a groove, a resin-bonded vermiculite produced by the production method, and a processing device for processing a plate-shaped body of the vermiculite using the resin, and a method for processing the plate-shaped body.

In order to achieve the above object, the present invention provides a method for producing a groove for polishing a resin-bonded vermiculite, characterized in that a resin-bonded vermiculite having a flat outer peripheral surface is aligned with a plate-like body which is harder than the binder of the resin-bonded vermiculite, While the resin-bonded vermiculite is rotated around the central axis, the outer peripheral surface of the resin-bonded vermiculite is pressed against the edge of the plate-like body, and the plate-like body is transferred onto the outer peripheral surface of the resin-bonded vermiculite. An annular polishing groove formed by the shape of the edge portion.

According to the present invention, the resin-bonded vermiculite having a flat outer peripheral surface is aligned with the plate-like body which is harder than the bond of the resin-bonded vermiculite. Further, while the resin-bonded vermiculite is rotated around the central axis of the resin-bonded vermiculite, the flat outer peripheral surface of the resin-bonded vermiculite is pressed against the edge portion of the plate-like body. In this way, the outer peripheral surface of the resin-bonded vermiculite is ground by the edge portion of the plate-like body. Therefore, an annular polishing groove formed by transferring the contour shape of the edge portion of the plate-like body to the outer surface of the resin-bonded vermiculite can be produced. Further, according to the present invention, it is not necessary to adjust the position at which the groove of the resin-bonded vermiculite is aligned with the edge of the plate-like body as in the prior resin-bonded vermiculite. That is, in one aspect of the present invention, the polishing groove can be produced, and the edge portion of the plate-like body can be polished.

In one aspect of the invention, it is preferable that the edge portion of the plate-like body is ground into a specific shape by metal-bonded vermiculite, and the edge portion of the plate-like body that has been ground into the specific shape is The outer peripheral surface of the resin-bonded vermiculite is relatively pressed, and the polishing groove is formed on the outer peripheral surface of the resin-bonded vermiculite.

According to an aspect of the present invention, the edge portion of the plate-like body is ground by the metal-bonded vermiculite to form a chamfered surface at the edge portion. Then, the chamfered surface is pressed against the flat outer peripheral surface of the resin-bonded vermiculite. Thereby, a polishing groove having the same shape as that of the chamfered surface can be formed on the outer surface of the resin-bonded vermiculite.

In one aspect of the invention, it is preferable that the outer circumferential surface of the resin-bonded vermiculite is pressed against a side portion of the edge portion of the plate-shaped body other than the corner portion to form the polishing groove.

When the corner portion of the edge portion of the plate-like body is pressed against the peripheral surface of the resin-bonded vermiculite, an external force acts on the corner portion due to the rotation of the resin-bonded vermiculite, and the stress concentrates on the corner portion, thereby causing the corner portion to be broken. situation.

On the other hand, in one aspect of the present invention, since the side portion of the edge portion of the plate-like body is pressed against the outer peripheral surface of the resin-bonded vermiculite, the stress is dispersed, whereby the plate-shaped body can be prevented from being damaged.

In one aspect of the invention, preferably, the binder of the resin-bonded vermiculite is phenol, epoxy resin, polyimine, polyurethane, polyoxymethylene, butyl rubber, or natural rubber, and the above resin The ruthenium of the bonded vermiculite is diamond, cubic boron nitride (CBN), alumina (Al ₂ O ₃ ), tantalum carbide (SiC), pumice, or garnet, and the above-mentioned plate-like body is a glass plate.

According to an aspect of the present invention, the polishing groove is formed on the outer peripheral surface of the resin-bonded vermiculite by the edge of the glass plate which is harder than the binder of the resin-bonded vermiculite. Further, the edge portion of the glass plate can be polished by the polishing groove to be produced. That is, in the same step, the polishing groove can be produced and the edge of the polishing groove produced by the polishing can be polished. Furthermore, the glass sheet is harder than the binder of the resin bonded vermiculite.

In order to achieve the above object, the present invention provides a resin-bonded vermiculite which is produced by a method for producing a polishing groove for a resin-bonded vermiculite according to the present invention.

In order to achieve the above object, the present invention provides a processing apparatus for a plate-shaped body, comprising: a platform for holding a plate-like body; and a resin-bonded vermiculite according to the present invention, which is held at an edge portion of the plate-like body of the platform Grinding, wherein the resin-bonded vermiculite rotates around a central axis of the resin-bonded vermiculite; and a moving mechanism that contacts the polishing groove of the resin-bonded vermiculite with the edge of the plate-like body, and causes The resin-bonded vermiculite or the plate-like body moves along an edge portion of the plate-like body, and an ejecting mechanism that ejects a cooling liquid to a contact portion between the polishing groove of the resin-bonded vermiculite and an edge portion of the plate-shaped body.

Further, an aspect of the present invention provides a method of processing a plate-like body, characterized in that the edge portion of the plate-like body is processed by the above-described processing apparatus according to an aspect of the present invention.

According to the invention, the resin is bonded to the vermiculite by a rotating mechanism for rotation. Then, by the moving mechanism, the polishing groove for the resin-bonded vermiculite is brought into contact with the edge portion of the plate-like body held by the platform, and the resin-bonded vermiculite or the plate-like body is moved along the edge portion of the plate-like body. Then, the cooling liquid is sprayed to the contact portion between the polishing groove of the resin-bonded vermiculite and the edge portion of the plate-like body by the spraying mechanism. Thereby, the plate can be smoothly polished by the grinding groove of the resin bonded vermiculite The edge of the body.

An aspect of the present invention preferably includes a metal bonded vermiculite which is subjected to chamfering processing at an edge portion of the plate-like body of the platform, and the resin-bonded vermiculite is used to polish the plate-like body. It is mirror-finished by the edge of the chamfering process described above.

According to an aspect of the present invention, the edge portion of the plate-like body is chamfered by the metal-bonded vermiculite to form a chamfered surface at the edge portion. Moreover, it is mirror-finished by resin-bonded vermiculite grinding chamfers.

According to the invention, the groove for polishing the end portion of the plate-like body can be formed into a groove shape that matches the shape of the edge portion of the plate-like body.

10‧‧‧Chamfering device

12‧‧‧ glass plate

12A~12D‧‧‧The edge of the glass plate

End face of 12E, 12E'‧‧‧ glass plates

12F‧‧‧ the main face of the glass plate

12G‧‧‧ glass plate interface

14‧‧‧ platform

16‧‧‧Mobile devices

18, 20‧‧‧Metal bonded meteorite

22, 24‧‧ ‧ motor

26, 28‧‧‧ resin bonded meteorite

30, 32‧‧‧ motor

34, 36, 38, 40‧ ‧ nozzle

42, 44‧‧‧ annular groove

43‧‧‧ outer perimeter

C‧‧‧ corner

S‧‧‧Edge

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a plan view showing a chamfering device of a processing apparatus for a plate-shaped body to which the present invention is applied.

Fig. 2 is a perspective view showing the arrangement position of vermiculite, glass plate and nozzle.

Fig. 3A is an explanatory view showing the arrangement of the edge of the grinding groove and the glass plate of the metal bonded vermiculite.

Fig. 3B is an explanatory view of the edge portion of the glass plate which is ground by metal-bonded vermiculite.

Fig. 3C is an enlarged view of the edge portion of the glass plate having the chamfered surface formed by grinding.

Figure 4 is a side view of a metal bonded vermiculite.

Figure 5 is an overall perspective view of a resin bonded vermiculite.

Fig. 6A is an explanatory view showing a method of producing a groove for polishing a resin-bonded vermiculite.

Fig. 6B is an explanatory view showing a method of producing a groove for polishing a resin-bonded vermiculite.

Fig. 7 is an explanatory view showing a state in which a resin-bonded vermiculite is pressed against a corner portion of a glass plate.

Fig. 8 is an explanatory view showing a state in which a resin-bonded vermiculite is pressed against a side portion of a glass plate.

Hereinafter, a preferred embodiment of a method for producing a polishing groove for a resin-bonded vermiculite according to the present invention, a resin-bonded vermiculite, a processing device for a plate-shaped body, and a method for processing a plate-shaped body will be described in detail with reference to the accompanying drawings.

Fig. 1 is a plan view showing a chamfering device 10 of an embodiment of a processing apparatus for a plate-shaped body to which the present invention is applied. The chamfering device 10 is subjected to chamfering by grinding the edge portions 12A to 12D of the glass plate (plate-like body) 12 for a liquid crystal display having a thickness of 0.7 mm or less, and chamfering by grinding and chamfering A device for mirror processing.

Further, the plate-like body which can be applied to the processing apparatus of the present invention is not limited to the glass plate for liquid crystal displays. For example, it may be a glass plate for FPD for glass plates for plasma display, glass plates for LED (Light Emitting Diode) display, or ordinary glass for solar cells, lighting, building materials, or mirrors. board. Further, a plate member made of metal or resin can also be used. The thickness of the plate-like body is not limited to 0.7 mm or less, and may be a thickness of more than 0.7 mm.

The chamfering device 10 includes a platform 14 that adsorbs and holds a rectangular glass plate 12, a moving device (moving mechanism) 16, which reciprocates the platform 14 in the direction of the arrow AB, and a disc-shaped or cylindrical one-to-metal bonded meteorite 18, 20, etc., grinding the edge portions 12A to 12D of the glass plate 12 to form a chamfered surface at the edge portion; the motors 22, 24, etc., rotate the metal-bonded vermiculite 18, 20 at a high speed; a disk or a cylinder The resin is bonded to the vermiculite 26, 28, and the mirrored surface is polished by grinding the chamfered surface; the motor (rotating mechanism) 30, 32, etc., the resin-bonded vermiculite 26, 28 is rotated at a high speed; the nozzle (ejection mechanism) 34, 36 Then, the coolant is sprayed to the processed portion (contact portion) of the metal-bonded vermiculite 18, 20; and the nozzles (ejection mechanism) 38, 40 are sprayed to the processed portion (contact portion) of the resin-bonded vermiculite 26, 28 Coolant. The method for producing the polishing groove for the resin-bonded vermiculite 26 and 28 will be described later. Further, the shape of the metal bonded vermiculite 18, 20 and the resin bonded vermiculite 26, 28 is not limited to a disk shape or a column shape, and may be a cylindrical shape.

The chamfering device 10 of the embodiment is configured such that one of the main surfaces of the glass sheet 12 is adsorbed and held on the platform 14 in a state where the edge portion of the glass sheet 12 having the opposite main surfaces is exposed from the upper surface of the stage 14. The adsorption surface of the upper surface moves the platform 14 in the direction of arrow A by the moving device 16. During the movement, the opposite edge portions 12A and 12B of the glass plate 12 are ground by the metal-bonded vermiculite 18 and 20 which are rotated in the direction opposite to the moving direction of the glass plate 12 to form a chamfered surface. Then, the chamfered surface is polished by the resin-bonded vermiculite 26, 28 which is rotated in a direction opposite to the moving direction of the glass sheet 12. Thereby, the edge portions 12A and 12B of the glass plate 12 are mirror-finished after chamfering.

Further, at the time of chamfering, the coolant is sprayed from the nozzle 34 to the processed portion where the metal bonded vermiculite 18 is in contact with the edge portion 12A of the glass plate 12, and the coolant is sprayed from the nozzle 36 to the metal bonded vermiculite 20 and the glass plate 12 The processed portion where the edge portion 12B contacts. Further, at the time of mirror processing, the cooling liquid is ejected from the nozzle 38 to the processed portion where the resin-bonded vermiculite 26 is in contact with the edge portion 12A of the glass sheet 12, and the cooling liquid is ejected from the nozzle 40 to the resin-bonded vermiculite 28 and the glass sheet 12. The processed portion where the edge portion 12B contacts.

As a result, the processed portion is cooled by the coolant, and the occurrence of burns, defects, and the like occurring in the edge portions 12A and 12B of the glass sheet 12 is reduced. Further, the amount of debris generated at the interface between the two main faces of the glass sheet 12 and the end faces of the edge portions 12A and 12B is also reduced. Further, as the cooling liquid, pure water, grinding oil, and a mixture thereof may be exemplified.

In the chamfering device 10, the opposite edge portions 12A and 12B of the glass plate 12 are simultaneously chamfered and mirror-finished, and the metal bonded vermiculite 18 and the resin bonded vermiculite 26 are aligned with the edge portion 12A. And the metal bonded vermiculite 20 and the resin bonded vermiculite 28 are arranged opposite to the edge portion 12B. The resin-bonded vermiculite 26 and 28 are disposed on the downstream side in the transport direction of the glass sheet 12 with respect to the metal-bonded vermiculite 18 and 20.

In FIG. 1, the metal bonded vermiculite 18 is rotated in the clockwise direction by the motor 22, and the metal bonded vermiculite 20 is rotated in the counterclockwise direction by the motor 24. Also, resin bonded meteorite 26 is rotated in the clockwise direction by the motor 30, and the resin-bonded vermiculite 28 is rotated in the counterclockwise direction by the motor 32. The number of revolutions of the vermiculite 18, 20, 26, 28 is preferably set to 3000 rpm or more.

Further, in Fig. 1, a chamfer for processing the edge portions 12A, 12B by the fixed metal-bonded vermiculite 18, 20 and the resin-bonded vermiculite 26, 28 while moving the glass sheet 12 in the direction of the arrow A is shown. The device 10 is not limited thereto. For example, it may be a chamfering device that fixes the glass sheet 12 and moves the metal-bonded vermiculite 18, 20 and the resin-bonded vermiculite 26, 28 along the edge portions 12A, 12B of the glass sheet 12. Further, a chamfering device for moving the metal-bonded vermiculite 18, 20 and the resin-bonded vermiculite 26, 28 and the glass sheet 12 in the direction in which the edge portions 12A, 12B of the glass sheet 12 move toward each other may be used. Further, the opposite edge portions 12C and 12D of the glass sheet 12 may be made of metal-bonded vermiculite and resin (not shown) disposed behind the metal-bonded vermiculite 18, 20 and the resin-bonded vermiculite 26, 28 of FIG. Bonded vermiculite for processing. Alternatively, after the glass plate 12 is moved in the B direction by the platform 14 and returned to the original position, the glass plate 12 is rotated by 90 degrees on the vertical line of the main surface direction of the glass plate 12 by the platform 14, and then, While the glass plate 12 is moved in the direction A by the platform 14, the metal bonded vermiculite 18, 20 and the resin bonded vermiculite 26, 28 are edge-changed by the length of the edge portions 12A, 12B of the glass plate 12. 12C, 12D for processing.

2 is a perspective view showing the arrangement position of the metal-bonded vermiculite 18, the resin-bonded vermiculite 26, and the nozzles 34, 38 with respect to the glass sheet 12. The metal bonded vermiculite 18, 20 and the resin bonded vermiculite 26, 28 are disposed opposite to the end surface 12E of the glass sheet 12. Here, the end surface 12E is a surface that is orthogonal to the principal surface 12F of the glass sheet 12 and is a surface before processing. The portion including the interface between the end surface 12E and the main surface 12F and the end surface 12E is referred to as an edge portion 12A to 12D, and the edge portions 12A to 12D are processed by the metal-bonded vermiculite 18, 20 and the resin-bonded vermiculite 26, 28. Further, as described in Patent Document 1, the rotation axes of the metal-bonded vermiculite 18, 20 and the resin-bonded vermiculite 26, 28 may be inclined by a specific angle with respect to a perpendicular line perpendicular to the principal surface 12F of the glass sheet 12.

The metal bonded vermiculite 18, 20 and the resin bonded vermiculite 26, 28 are simultaneously rotationally driven, and the glass plate 12 is moved by the moving device 16 of Fig. 1, and the opposite edge portions 12A, 12B of the glass plate 12 are simultaneously bonded by metal. Vermiculite 18, 20 and resin bonded vermiculite 26, 28 are processed.

3A and 3B are partially enlarged cross-sectional views showing the outer peripheral surface of the metal bonded vermiculite 18. Further, since the metal bonded vermiculite 18 and 20 shown in Fig. 1 have the same configuration, the metal bonded vermiculite 18 will be described here, and the description of the metal bonded vermiculite 20 will be omitted.

On the outer peripheral surface of the metal bonded vermiculite 18, an annular groove 42 as a grinding groove is formed in the horizontal direction (the direction orthogonal to the rotation axis indicated by a one-dot chain line in Fig. 4). The annular groove 42 is provided in parallel with each other in the vertical direction as shown in the side view of the metal bonded vermiculite 18 of FIG.

Further, the cross-sectional shape of the metal-bonded vermiculite 18 of the annular groove 42 in the thickness direction is not limited to the U-shape shown in FIGS. 3A and 3B, and may be V-shaped or concave. Further, the number of the annular grooves 42 may be one. However, in order to omit the replacement of the metal bonded vermiculite 18, it is preferable to include a plurality of strips at specific intervals in the thickness direction of the metal bonded vermiculite 18 as shown in FIG. Since the metal bonded vermiculite 18 includes a plurality of annular grooves 42, when the annular groove 42 in use has reached a durability period, the metal is bonded to the vermiculite 18 by a control device (not shown) at a pitch of the annular groove 42. When the unit is moved up and down in the vertical direction (the thickness direction of the metal bonded vermiculite 18), the edge portion 12A of the glass sheet 12 can be ground by the new annular groove 42 without replacing the metal bonded vermiculite 18. Further, the shape of the annular groove 42 may be a shape having a single radius of curvature, and the portion for grinding the end surface 12E as shown in Fig. 3A and the grinding of the edge portion 12A of the glass plate 12 shown in Fig. 3C may be completed. The portion to be ground by the interface 12G of the rear end face 12E' and the main face 12F has a shape having a different radius of curvature.

As shown in Fig. 3A, the annular groove 42 of the metal-bonded vermiculite 18 in the horizontal direction faces the end surface 12E of the glass sheet 12, and from this state, the metal-bonded vermiculite 18 is transferred in the horizontal direction toward the end surface 12E. Moreover, even if the annular groove 42 of the metal bonded vermiculite 18 abuts against the end face 12E, as shown in Fig. 3B, the metal bonded vermiculite 18 is transferred toward the edge portion 12A by an amount corresponding to the amount of grinding. Thereby, as shown in FIG. 3C, the edge portion 12A is ground by the annular groove 42, and the chamfered surface is formed at the edge portion 12A. Further, as shown by a broken line B in FIG. 3A, the metal bonded vermiculite 18 is transferred toward the edge portion 12A so that the center portion of the end surface 12E in the thickness direction of the glass sheet 12 abuts against the deepest portion of the annular groove 42.

Next, a first method of producing the annular groove 44 shown in FIG. 2 as a polishing groove for the resin-bonded vermiculite 26 and 28 will be described. Further, since the resin-bonded vermiculite 26 and the resin-bonded vermiculite 28 are the same object, the resin-bonded vermiculite 26 will be described here, and the description of the resin-bonded vermiculite 28 will be omitted. Further, the description relating to the resin-bonded vermiculite 28 is also omitted.

Fig. 5 is an overall perspective view showing the resin-bonded vermiculite 26 in a state in which the annular groove 44 is not formed. The resin-bonded vermiculite 26 is formed into a disk shape, a columnar shape, or a cylindrical shape, and is a verdrite which is flat as the outer surface 43 of the polishing surface. 6A and 6B are explanatory views showing a procedure for forming the annular groove 44 in the resin bonded vermiculite 26 of Fig. 5. The glass plate 12 in which the annular groove 44 is formed is shown in Figs. 6A and 6B. Of course, the glass sheet 12 is harder than the adhesive of the resin-bonded vermiculite 26.

In the production of the annular groove 44, the chamfered surface of the edge portion 12A of the glass plate 12 ground by the metal-bonded vermiculite 18 of the chamfering device 10 is transferred to the flat outer peripheral surface 43 of the resin-bonded vermiculite 26.

That is, the chamfering device 10 of Fig. 1 including the platform 14, the moving device 16, the motors 30, 32, and the nozzles 38, 40 is used to form a chamfer by grinding the edge portion 12A of the glass plate 12 by the metal bonded vermiculite 18. On the surface, the flat outer peripheral surface 43 of the resin-bonded vermiculite 26 is pressed against the chamfered surface, and the annular groove 44 is formed on the outer peripheral surface 43 of the resin-bonded vermiculite 26 and 28.

According to the above-described production method, the annular groove 44 having the same contour shape as the chamfered surface of the glass plate 12 can be formed on the outer peripheral surface 43 of the resin-bonded vermiculite 26. Further, the chamfered surface can be polished by the annular groove 44 formed while the annular groove 44 is formed. therefore, The chamfering processing efficiency of the glass sheet 12 is improved.

The resin-bonded vermiculite 26 in which the annular groove 44 is formed by the above-described production method is continuously used in the chamfering device 10. When the first annular groove 44 reaches the endurance period, the resin-bonded vermiculite 26 is raised by a specific amount, and the second new annular groove 44 is formed on the flat outer peripheral surface 43 in accordance with the above procedure. In this case, since the annular groove 44 is formed by the edge portion 12A of the glass plate 12 held by the stage 14, it is not necessary to adjust the height of the annular groove 44 with respect to the height of the edge portion 12A.

In other words, the resin-bonded vermiculite of Patent Document 3 in which the annular groove 44 is formed in advance must be adjusted in height when the old annular groove is changed to a new annular groove. However, the above-described manufacturing method does not require height as described above. Adjustment. Thereby, according to the above production method, the chamfering processing efficiency can be improved.

Furthermore, the metal chamfered vermiculite 18, 20 is included in the chamfering device 10 of FIG. 1, but even if it is a chamfering device that does not include the metal bonded vermiculite 18, 20, the glass plate 12 is bonded only by the resin bonded vermiculite 26, 28. The present invention can also be applied to a chamfering device in which the edge portions 12A, 12B are ground.

On the other hand, in the case of producing the annular groove 44, it is preferable that the outer peripheral surface 43 of the resin-bonded vermiculite 26 is pressed against the side portion S other than the corner portion C of the edge portion 12A of the glass sheet 12 as shown in FIG. Production.

7 and 8 show the pressed position of the resin bonded vermiculite 26 to the edge portion 12A of the glass plate 12.

As shown in Fig. 7, when the corner portion C of the edge portion 12A of the glass sheet 12 is pressed against the outer peripheral surface of the resin-bonded vermiculite 26, 28, an external force acts on the corner portion due to the rotation of the resin-bonded vermiculite 26, 28. C, the stress is concentrated on the corner portion C, so that the corner portion C is broken.

On the other hand, when the side portion S of the edge portion 12A of the glass sheet 12 is pressed against the outer peripheral surface of the resin-bonded vermiculite 26, the stress is dispersed, and the glass sheet 12 can be prevented from being damaged.

The resin-bonded vermiculite 26 is a vermiculite which is obtained by using a binder of a thermosetting resin to hold the granules. Examples of the binder include phenol, an epoxy resin, a polyimide, a polyurethane, a polyoxymethylene, a butyl rubber, or a natural rubber. Further, examples of the niobium particles include diamond, cubic boron nitride (CBN: Cubic Boron Nitride), alumina (Al ₂ O ₃ ), niobium carbide (SiC), pumice, or garnet. The particle size of the resin-bonded vermiculite 26 is preferably 200 to 1500 (JIS R6001: 1998) when the granules are diamond.

The present application is based on Japanese Patent Application No. 2013-193933, filed on Jan.

12‧‧‧ glass plate

12A‧‧‧The edge of the glass plate

26‧‧‧Resin bonded meteorite

44‧‧‧ring groove

Claims (7)

A method for processing a plate-shaped body, wherein the edge portion of the plate-shaped body is processed by using a resin-bonded vermiculite having a flat outer peripheral surface, wherein the resin-bonded vermiculite is rotated around a central axis while the resin is bonded to the vermiculite The outer peripheral surface is pressed against the edge of the plate-like body, and an annular polishing groove formed by transferring the shape of the edge portion of the plate-like body is formed on the outer peripheral surface of the resin-bonded vermiculite. The polishing groove was produced, and the plate-shaped body was polished by the polishing groove produced. The method for processing a plate-shaped body according to claim 1, wherein the edge of the plate-like body is ground into a specific shape by metal-bonded vermiculite, and the edge of the plate-like body ground into the specific shape is formed. The portion is pressed against the outer peripheral surface of the resin-bonded vermiculite, and the polishing groove is formed on the outer peripheral surface of the resin-bonded vermiculite. The method of processing a plate-shaped body according to claim 1 or 2, wherein the outer circumferential surface of the resin-bonded vermiculite is pressed against a side portion of the edge portion of the plate-shaped body other than the corner portion to form the polishing groove. The method for processing a plate-shaped body according to claim 1 or 2, wherein the binder of the resin-bonded vermiculite is phenol, epoxy resin, polyimine, polyurethane, polyoxymethylene, butyl rubber, or Natural rubber, the above-mentioned resin-bonded vermiculite particles are diamond, cubic boron nitride (CBN), alumina (Al ₂ O ₃ ), tantalum carbide (SiC), pumice, or garnet, and the above-mentioned plate-like body is glass. board. A method of processing a plate-like body according to claim 1 or 2, wherein the plate-like system has a thickness of 0.7 mm or less. A processing device for a plate body, comprising: a platform for holding a plate-shaped body; a resin-bonded vermiculite which is polished to an edge portion of the plate-like body held by the platform, wherein an outer peripheral surface of the resin-bonded vermiculite is flat, and the outer peripheral surface is relatively pressed by the outer peripheral surface An annular polishing groove formed by transferring the shape of the edge portion of the plate-like body on the outer peripheral surface of the plate-like body, and polishing the plate shape by the polishing groove produced a rotating mechanism for rotating the resin-bonded vermiculite around a central axis of the resin-bonded vermiculite; and a moving mechanism for bonding the polishing groove of the resin to the vermiculite and the edge of the plate-shaped body Contacting and adhering the resin to the vermiculite or the plate-like body moves along the edge of the plate-like body. A processing apparatus for a plate-shaped body according to claim 6, comprising metal-bonded vermiculite which is ground and held at an edge portion of the plate-like body of the platform and chamfered, and the resin-bonded vermiculite The edge of the above-mentioned plate-like body subjected to the above chamfering is polished and mirror-finished.