JP2015086133A - Scribe device of glass plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scribe device of a glass plate that tilts a cutter wheel to set, scribes a rectangle and an irregular shape such as an ellipse that are closed curve, and forms a scribe groove tilted to a thickness direction of a glass plate under a scribe line over an entire circumference of the scribe line.SOLUTION: A scribe device 1 performs angle control to a cutter wheel 13 around an axis line orthogonal to a plane coordinate system while moving the cutter wheel along a contour line in the plane coordinate system to allow a blade surface of the cutter wheel 13 to always face a normal direction of the contour line and performs scribing to a glass plate 2. The scribe device tilts the cutter wheel 13 to the surface of the glass plate 2 in the normal direction to form a scribe groove tilted to a thickness direction of the glass plate 2.

Description

  The present invention relates to a scribing apparatus for a glass plate that forms a scribe line on a glass plate surface by a cutter wheel in order to cut out and form an opening in an inner region of the glass plate.

  That is, the present invention provides a scribing device for forming a scribe line in a step of forming a closed-curved scribe line on a glass plate surface, then extracting an inner region surrounded by the scribe line and forming an opening. About.

  In addition, the present invention is a method of moving a plane coordinate system by numerically controlling a cutter wheel and a glass plate, or a cutter wheel or a glass plate, and forming a contour shape of a closed curve such as a rectangle or an ellipse on the glass plate surface. It is related with the scribing apparatus of the glass plate which forms the scribe line.

  Particularly, in the present invention, in order to cut out and form an opening for attaching a sunroof window structure to the ceiling area of a windshield plate that also serves as a front window and a ceiling in an automobile, first, a scribe line having an outer shape of the opening is formed. It relates to a suitable scribing device.

  Patent Document 1 discloses that the formation of an opening in a glass plate for an automobile is performed by clipping with a pressurized water jet.

  Patent Document 2 discloses a scribing method using a cutter wheel in a method of cutting out a glass substrate for a magnetic disk or an optical disk from a glass plate.

  This scribing method uses a cutter wheel that has different left and right blade angles with respect to the wheel ridgeline as a cutter wheel, and moves in a state of standing vertically to the glass plate surface and is inclined with respect to the thickness direction of the glass plate. It is a method of forming. In addition, using a cutter wheel with the same blade angle on the left and right with respect to the wheel ridgeline, the wheel ridgeline is moved in a state inclined with respect to the glass plate surface, and a scribe groove inclined with respect to the thickness direction of the glass plate is formed. A method is disclosed. In both cases, a scribe groove inclined with respect to the thickness direction of the glass plate is formed by a cutter wheel on the glass plate surface, and then the glass plate surface is heated, the glass plate is deformed, and a draft is formed below the scribe line. It is a method to do.

JP 2012-519642 A JP-A-7-223828

  About patent document 1, in order to cut and form the opening part to a glass plate by a pressurized water jet, the cutting speed of a glass plate is slow, and it takes a very long time to complete the cutting, and a very low-efficiency processing operation It is.

  In Patent Document 2, only a diagram in which a scribe line is formed by inclining a cutter wheel and an explanation that a scribe groove inclined in a thickness direction is formed in a glass plate when the cutter wheel is inclined and scribed is disclosed. Not. There is no disclosure of the structure of the scribing device set with the cutter wheel tilted.

  Therefore, the present invention has been made in view of the above-mentioned points, and the object of the present invention is to set the cutter wheel by inclining it, scribe a deformed shape such as a rectangle or an ellipse that is a closed curve, and An object of the present invention is to provide a scribing device for a glass plate that forms a scribe groove inclined toward the thickness direction of the glass plate under the scribe line over the entire circumference.

  The present invention relates to the blade surface of the cutter wheel by controlling the angle of the cutter wheel and the glass plate or by controlling the angle of the cutter wheel around an axis perpendicular to the planar coordinate system while moving the contour line of the cutter wheel in the planar coordinate system. In a scribing device that always scribes the glass plate in the normal direction of the contour line, and further, the cutter wheel is set to be inclined with respect to the glass plate surface in the normal direction, and the thickness of the glass plate A scribing device for a glass plate in which a scribe groove inclined with respect to a direction is formed.

  In addition, the present invention provides a scribe head having a cutter wheel at the lower end for X-axis movement, a scribe table for supporting the glass plate on the upper surface and moving the Y-axis, and an X installed above the scribe table. A shaft means, an X-axis moving table that moves in the X-axis in the X-axis means, a bearing device that is attached to the X-axis moving table corresponding to the scribe table, and is rotatably held by the bearing device, A rotation axis whose axis is orthogonal to the XY plane coordinate system in which the cutter head and the glass plate move by the X-axis movement of the scribe head and the Y-axis movement of the scribe table, and the rotation axis above the rotation axis. An angle control rotation drive means for rotating the angle control, and a bracket body attached to the lower part of the rotation shaft and for mounting the scribe head. The scribe head is attached to the bracket body at an angle with respect to the glass plate surface on the scribe table immediately below the rotation shaft, and the cutter wheel is attached to the glass plate surface by the inclined attached scribe head. It is a scribing device for a glass plate that is inclined and set.

  The present invention relates to the blade surface of the cutter wheel by controlling the angle of the cutter wheel and the glass plate or by controlling the angle of the cutter wheel around an axis perpendicular to the planar coordinate system while moving the contour line of the cutter wheel in the planar coordinate system. Is a scribing device that always moves toward the normal direction of the contour line and scribes the glass plate, and the cutter wheel is inclined with respect to the glass plate surface in the normal direction, When scribing a contour line such as a closed curve rectangle or ellipse, a scribe groove inclined along the inclination angle of the cutter wheel in the thickness direction of the glass plate is formed under the scribe line over the entire circumference of the scribe line. It is formed.

  Next, a draft is formed under the scribe line by advancing the scribe groove to the lower surface of the glass plate by a method such as pressure push impact which becomes a bending stress on the glass plate. Then, the inner region and the outer region can be easily divided by lifting the inner region of the scribe line with respect to the outer region or lifting the outer region with respect to the inner region. That is, an opening such as a rectangle or an ellipse can be easily formed in the outer region glass plate as a product.

  In addition, when scribing a contour line of a closed curve rectangle, ellipse, etc. with a cutter wheel inclined to the inner region side of the scribe line, over the entire circumference of the scribe line, under the scribe line, in the thickness direction of the glass plate, An inclined scribe groove is formed on the outer region side.

  Next, by adhering the outer area of the scribe line while holding the inner area of the scribe line by advancing the scribe line to the lower surface of the glass sheet by a method such as pressure push impact that becomes a bending stress on the glass plate. Then, the opening can be formed in the glass plate in the outer region that is the product.

  Conversely, when a contour line such as a closed curve rectangle or ellipse is scribed by a cutter wheel inclined to the outer region side of the scribe line, the thickness of the glass plate is placed under the scribe line over the entire circumference of the scribe line. In the direction, a scribe groove inclined toward the inner region is formed.

  Next, by adhering the inner area of the scribe line while holding the outer area of the scribe line by advancing the scribe line to the lower surface of the glass sheet by a method such as pressure push impact that becomes a bending stress on the glass plate. As a result, an opening is formed in the glass plate in the outer region that is the product.

  A scribing head with a cutter wheel at the lower end is supported by a bearing device that moves in the X-axis so that the axis is orthogonal to the glass plate surface, far above the scribe table that supports the glass plate on the upper surface and moves in the Y-axis. Since the angle-controlled rotating shaft is mounted directly below the rotating shaft via a bracket, the scribe head can be mounted at an inclination by aligning the cutter wheel on the axis of the rotating shaft. In addition, since the height distance between the lower end of the rotating shaft and the glass plate on the scribe table is sufficiently secured, the scribe head can be inclined and attached to the glass plate surface so that the angle can be changed. Further, it can be tilted toward the inner region side of the scribe line, inclined toward the outer region side, or can be freely tilted. Therefore, it is possible to easily change and adjust the inclination angle of the cutter wheel provided at the lower end of the scribe head, to adjust the inclination direction, and to change the inclination direction. In addition, as described above, since the height distance between the lower end of the rotating shaft and the glass plate surface is secured, a vertically long scribe head can be attached, and the cutter wheel is linearly pressed against the glass plate surface along the tilt direction. And scribe grooves can be accurately formed.

  According to the present invention, the cutter wheel is tilted and set, and a closed curve such as a rectangle or an ellipse is scribed, and the entire circumference of the scribe line is placed below the scribe line in the thickness direction of the glass plate. It is possible to provide a scribing device for a glass plate that forms a scribe groove that is inclined.

FIG. 1 is a plan view of a glass plate (product) in which an opening is formed. FIG. 2 is a plan view of a glass plate on which scribe lines for forming openings are formed. FIG. 3 is an explanatory view of the posture of the cutter wheel during scribing. FIG. 4 is a cross-sectional view of a glass plate showing an inclined state of a vertical crack under the scribe line. FIG. 5 is an explanatory view showing the extraction direction of the inner region of the scribe line along the inclined vertical crack (draft gradient). FIG. 6 is an explanatory view showing a state in which the inner region of the scribe line is extracted from the glass plate. FIG. 7 is a cross-sectional view of the scribe position during the scribe line forming operation. FIG. 8 is an explanatory view showing the transport state of the glass plate at the scribe position in cross section. FIG. 9 is a front view of a scribing device for the present glass plate. FIG. 10 is an explanatory diagram of the extraction operation at the extraction position as viewed from the front. FIG. 11 is a front view of the glass plate transfer device. FIG. 12 is an explanatory view of the extraction operation at the extraction position as seen from the cross section.

  An embodiment of the present invention will be described with reference to the drawings.

  Hereinafter, the scribing apparatus 1 provided with a sampling position and a glass plate conveying apparatus will be described.

  As shown in FIG. 7 to FIG. 12, the scribing device 1 includes a glass plate 2 entering position 8, scribing position 9, extraction position 10, and extraction position 11 in series from the right side in the X-axis direction.

  Further, a conveying device 12 for the glass plate 2 is installed above the entrance position 8, above the scribe position 9, above the extraction position 10 and above the extraction position 11.

  The scribing device 1 includes a numerical control device (CNC), and each of the scribing position 9, the extraction position 10, and the glass plate transport device 12 is numerically controlled and performs each operation.

  In the scribing apparatus 1, as shown in FIGS. 9, 10, and 11, the left-right direction of the front is the X-axis direction, and the direction shown in FIG. 7 is the Y-axis direction.

  The scribe position 9 is a position at which the scribe line 5 is formed on the glass plate 2 in order to provide the opening 3 in the inner region 4 of the glass plate 2. The scribe position 9 includes a scribe head 14 that has a cutter wheel 13 at the lower end and moves in the X axis, and a scribe table 15 that supports the glass plate 2 on the upper surface and moves in the Y axis on the upper surface.

  Further, the scribe position 9 is formed by rotating the scribe head 14 and the cutter wheel 13 around an axis 16 orthogonal to an XY plane coordinate system to be described later, and the direction of the cutter wheel 13 (the direction of the edge of the cutting edge). An angle control means 39 for controlling the angle is provided.

  In addition, the angle control means 39 is also to always orient the blade surface of the cutter wheel 13 that moves in the contour direction in the normal direction of the contour line.

  That is, the scribe head 14 is moved in the X-axis direction, the scribe table 15 is moved in the Y-axis direction, the cutter wheel 13 and the glass plate 2 are moved along the contour line in the XY plane coordinate system, and the scribe head 14 is extended. The angle of the cutter wheel 13 is controlled around an axis 16 orthogonal to the XY plane coordinate system, and the scribe line 5 is formed while always aligning the blade surface of the cutter wheel 13 with the normal direction of the contour line.

  The shape of the scribe line 5 is a closed contour line such as a closed curve or a rectangular line along the shape of the opening 3.

  On the other hand, the extraction position 10 is a position at which the opening 3 is formed by extracting the inner region 6 surrounded by the scribe line 5 formed at the scribe position 9.

  The take-out position 11 is a position for receiving the glass plate 2 formed with the opening 3 taken out from the take-out position 10 by the conveying device 12.

  Next, the structure and operation of the scribe position 9 will be described in detail with reference to FIGS.

  A linear base 25 is installed along the X-axis direction above the scribe table 15 that supports the glass plate 2 and moves in the Y-axis direction.

  The gantry 25 is erected on a gate-shaped frame 27 that is erected at the front and rear ends of the machine base 26.

  Two sets of slide rail devices 28 are provided in parallel on the front surface of the gantry 25 along the X-axis direction.

  Each slide rail device 28 includes a rail body 29 attached to the front surface of the gantry 25 and a block (not shown) that is held by the rail body 29 and is slidable on the rail body 29.

  An X-axis moving table 30 is attached across the blocks of the slide rail devices 28 arranged in parallel.

  Therefore, the X-axis moving table 30 can move directly in the X-axis direction.

  The X-axis moving table 30 is moved in the X-axis direction by a feed screw 31 provided between the slide rail devices 28 and an X-axis control motor connected to the feed screw 31 via a toothed belt and a toothed pulley. 32.

  The slide rail device 28, the X-axis moving table 30, the feed screw 31 for moving the X-axis moving table 30 in the X-axis direction, the toothed belt, the toothed pulley, and the X-axis control motor 32 as a whole are moved in the X-axis direction. 19.

  Further, a bearing device 33 is attached to the front surface of the X-axis moving table 30 so as to correspond to the scribe table 15.

  The bearing device 33 includes a rotating shaft 34 that is inserted through the top and bottom. The rotating shaft 34 is rotatably held by a bearing (not shown) in the bearing device 33.

  The rotation axis 34 is incorporated such that its axis (axis) 16 is orthogonal (perpendicular) to the XY plane coordinate table system, that is, the surface of the glass plate 2.

  The rotating shaft 34 protrudes from the bearing device 33 at the upper and lower portions.

  An angle control motor 37 is connected via a spur gear 38 to the upper part of the rotating shaft 34 protruding upward from the bearing device 33.

  A rotating shaft 34 is clamped from the lower side of the rotating shaft 34 that protrudes downward from the bearing device 33, and a clamp bracket 35 attached to the rotating shaft 34 and a bracket attached downward to the clamp bracket 35. And a body 36.

  As shown in FIG. 7, the bracket body 36 is located outside the rotation shaft 34 and protrudes downward from the rotation shaft 34.

  The scribe head 14 is attached to the inside of the bracket body 36 immediately below the rotation shaft 34.

  The scribe head 14 is attached to the inner side of the bracket body 36 in an inclined posture so that the cutter wheel 13 provided at the lower end is inclined with respect to the upper surface of the glass plate 2.

  The attached scribe head 14 is inclined with respect to the upper surface of the glass plate 2, an XY plane coordinate system described later, and the axis 16 described above.

  Furthermore, the scribe head 14 is attached so that the scribe point 47 of the cutter wheel 13 provided at the lower end is positioned on the axis 16 during the scribe operation.

  That is, in a state where the cutter wheel 13 is inclined and pressed against the surface of the glass plate 2, the scribe point 47 contacting the glass plate 2 is located on the axis 16 perpendicular to the surface of the glass plate 2.

  Further, the attachment structure of the scribe head 14 to the bracket body 36 can be freely set to change the inclination angle of the cutter wheel 13 with respect to the upper surface of the glass plate 2.

  In addition, as shown in FIG. 3, the range of the set inclination angle of the cutter wheel 13 is 1 ° to 10 ° from the vertical at a blade edge angle of 154 ° to 160 ° in a wheel diameter of 6.5 mm. The optimum is 6.5 °.

  The scribe head 14 includes a spline shaft 40 having a cutter wheel 13 at the lower end, a head main body 41 that holds the spline shaft 40 so as to be freely reciprocated without rotating, and an upper portion of the head main body 41. When the cutter wheel 13 is moved up and down and the glass plate 2 is scribed, the air cylinder device 42 that elastically presses the cutter wheel 13 against the glass plate 2 and the head body 41 are moved in the X direction. It comprises a base base 43 that is mounted so that its position can be adjusted in the Y direction.

  The scribe head 14 is attached to a bracket body 36 projecting downward just below the rotation shaft 34, and the rotation of the rotation shaft 34 by the angle control motor 37 extends the scribe head 14 and the cutter wheel 13. Is an angle-controlled rotation around the axis 16 of the rotating shaft 34 that is integrated with the rotating shaft 34 directly below the bearing device 33 and is orthogonal (perpendicular) to the upper surface of the glass plate 2. do.

  That is, the angle of the cutter wheel 13 is controlled so that the blade surface is always aligned with the normal direction of the contour line while moving the contour line.

  When the cutter wheel 13 provided at the lower end is positioned on the axis 16 of the rotating shaft 34, the scribing head 14 is further in a state where the blade surface of the cutter wheel 13 is directed in the normal direction of the contour line. The scribe head is attached to the bracket body 36 of the rotary shaft 34 in an inclined posture so that the 13 ridge lines are set to be inclined with respect to the surface of the glass plate 2.

  That is, the inclined posture of the scribe head 14 is a posture inclined with respect to the glass plate 2 surface or the axis 16.

  The cutter wheel 13 is set in a posture inclined with respect to the surface of the glass plate 2 by the inclined mounting of the scribe head 14.

  In addition, the inclination angle from the perpendicular | vertical with respect to the glass plate 2 surface of the cutter wheel 13 was the range of 1 degree-10 degrees as shown in FIG. 3, and 6.5 degrees was suitable from the implementation result.

  The inclination of the cutter wheel 13 is attached to the bracket body 36 in a posture in which the cutter wheel 13 is inclined.

  That is, the cutter wheel 13 is set in such a manner that the edge of the cutting edge contacting the glass plate 2 with the scribe head 14 tilted is inclined obliquely toward the outer region 7 from the scribe line 5.

  That is, when the cutter wheel 13 inclined toward the inner region 6 is scribed along a closed curve or a rectangular line, an inclined scribe groove is formed, and the direction of the vertical crack 48 is always the outer region of the scribe line 5. Inclined in a diagonally downward direction toward 7.

  On the other hand, the scribe table 15 is mounted on a slide device 50 disposed on the upper surface of the machine base 26 along the Y-axis direction, as shown in FIGS. The slide device 50 includes a guide rail 51 and a slide block 54 assembled to the guide rail 51, and the scribe table 15 is attached to the slide block 54.

  The Y-axis movement of the scribe table 15 is performed by a feed screw 52 provided between the guide rails 51 and a Y-axis control motor 53 connected to the feed screw 52.

  The extraction position 10 includes a horizontal belt conveyor 55 on which the glass plate 2 on which the scribe line 5 having an opening formed from the scribe position 9 is formed, and a glass placed on the upper surface of the belt conveyor 55. The pressing means 56 that applies stress to the plate 2 to advance the vertical crack 48 under the scribe line 5, the pressing means 57 that presses the inner region 6 of the scribe line 5 against the upper surface of the belt conveyor 55, With the region 6 pressed against the upper surface of the belt conveyor 55, a plurality of glass plate adsorption lifting devices 58 that adsorb and lift the outer region 7 outside the scribe line 5 and extract the inner region 6 are provided.

  One pressing means 56 is arranged on each side area of the pressing means 57, and a total of two pressing means 56 are provided. Each of the pressing means 56 includes a pusher 59. The air cylinder device 60 pushes the glass plate 2 by moving the pusher 59 forward and backward, and presses the air cylinder device 60. XY direction moving means 61 for moving the XY plane coordinates in the both-side assigned area of the means 57 is provided.

  Based on the programmed movement information, the respective pressing means 56 sequentially push the air cylinder device 60 to the required positions of the respective areas in the outer area 7 of the scribe line 5 by the XY direction moving means 61 to perform push pressing. Then, stress is applied to the scribe line 5, and the vertical crack 48 extending from the scribe line 5 to the outer region 7 is advanced to the lower surface of the glass plate 2. The pressing means 57 is positioned corresponding to the center of the inner region 6 in the scribe line 5 and is positioned in the center of the plurality of glass plate suction lifting devices 58 disposed corresponding to the outer region 7 of the scribe line 5. It is. And the press means 57 is provided with the disc body 62 which planarly presses the center part of the inner side area | region 6 of the glass plate 2, and the vertical movement apparatus 63 which moves this disc body 62 up and down.

  Each of the glass plate suction lifting devices 58 disposed so as to surround the pressing means 57 includes a suction cup 64 that performs suction or suction release of the glass plate 2 and a suction cup vertical movement device 65 that moves the suction cup 64 up and down.

  The pressing means 56, the pressing means 57, and the glass plate suction lifting device 58 are attached to the lower surface of the reciprocating table 71 of the glass plate conveying device 12 via the bracket 66 and move integrally with the reciprocating table 71.

  The glass plate 2A in which the inner region 6 of the scribe line is extracted by the pressing means 56, the pressing means 57 and the glass plate suction lifting device 58 and the opening 3 is formed is sucked and lifted by the glass plate suction lifting device 58. Wait for the next transport process. The inner region 6 that has been pressed against the belt conveyor 55 by the pressing means 57 becomes free as the pressing means 57 rises, and is discharged from the belt conveyor 55 as a cullet.

  The glass plate transfer device 12 is mounted on a second frame 69 installed in parallel with the frame 25 above the entry position 8, the scribe position 9, the extraction position 10, and the extraction position 11.

  The transfer device 12 is attached to the lower surface of the second frame 69 via a slide mechanism 70, and is a reciprocating table 71 that performs reciprocating linear movement under numerical control, and an entry position 8 and a scribe on the lower surface of the reciprocating table 71. At each position corresponding to the position 9 and the extraction position 10, a plurality of attached glass plate adsorption lifting devices 58 are provided.

  In each of the positions corresponding to the entry position 8, the scribe position 9 and the extraction position 10 on the lower surface of the reciprocating table, a plurality of glass plate adsorption lifting devices 58 are attached in a required position in a downward posture. Yes. Each glass plate suction lifting device 58 has a suction cup 64 that performs suction or suction release of the glass plate 2 at the lower end, and a suction cup vertical movement device 65 that attaches the suction cup 64 to the lower end and moves the suction cup 64 up and down. The suction cup vertical motion device 65 is attached to the reciprocating motion table 71 via a bracket 66.

  The suction cup vertical movement device 65 is composed of an air cylinder or an electric cylinder device provided with an advance / retreat rod.

  The slide mechanism 70 that attaches the reciprocating base 71 to the lower surface of the second base 69 so as to freely move back and forth is composed of a guide rail 72 provided on the lower surface of the second base 69 and a slide assembled to the guide rail 72. The reciprocating table 71 is attached to this slide. The reciprocating motion of the reciprocating table 71 is driven under NC control by a feed screw 73 provided between the guide rails 72 and a transport control motor 74 connected to the feed screw.

  When the reciprocating table 71 is in the reciprocating process, the glass plate 2 conveying device 12 sucks and holds the glass plate 2 from the upper surface while the glass plate adsorption lifting device 58 corresponding to each position is being processed, and conveys it to the next position. However, the backward movement process is empty and returns to the respective positions 8, 9 and 10.

  The glass plate 2 is transported by the above-mentioned position interval distance each time the reciprocating table 71 is reciprocated by NC control.

  The glass plate transfer device 12 enters the transfer operation as soon as the formation of the scribe line 5 at the scribe position 9 and the extraction operation of the inner region 6 at the extraction position 10 are completed. The new glass plate 2 from the entry position 8 is placed on the scribe table 15 at the scribe position 9, and the glass plate 2 on which the scribe line 5 is formed from the scribe position 9 is placed on the belt conveyor 55 at the next extraction position 10. , The inner region 6 is extracted, and the glass plate 2 </ b> A in which the opening 3 is formed is taken out to the take-out position 11.

1 Scribing device 2 Glass plate 5 Scribe wire 13 Cutter wheel

Claims (2)

  The blade surface of the cutter wheel is always controlled by controlling the angle of the cutter wheel and the glass plate or the axis of the cutter wheel while moving the contour line in the plane coordinate system around the axis perpendicular to the plane coordinate system. In the scribing apparatus that scribes the glass plate in the normal direction of the contour line, the cutter wheel is set to be inclined with respect to the glass plate surface in the normal direction, and is inclined with respect to the thickness direction of the glass plate. A scribing device for a glass plate in which a scrub groove is formed.   A scribe head having a cutter wheel at the lower end and moving in the X axis, a scribe table for supporting the glass plate on the upper surface and moving in the Y axis, an X axis means installed above the scribe table, An X-axis moving table that moves in the X-axis in the X-axis means, a bearing device that is attached to the X-axis moving table in correspondence with the scribe table, and is rotatably held by the bearing device. By controlling the X-axis of the head and the Y-axis of the scribe table, the rotation axis orthogonal to the XY plane coordinate system in which the cutter head and the glass plate move, and the angle of the rotation axis above the rotation axis are controlled. An angle control rotation drive means, and a bracket body attached to the lower part of the rotation shaft and to which the scribe head is attached, the scribe head Directly below the rotary shaft, the bracket body is attached to the bracket body with an inclination with respect to the glass plate surface on the scribe table, and the cutter wheel is inclined with respect to the glass plate surface by the inclined attachment of the scrub head. A scribing device for glass plates.

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