JP3219466U - Glass plate cutting line processing equipment - Google Patents

Abstract

Disclosed is a glass plate cutting line processing apparatus capable of processing a cutting line with certainty in an ear part.
A cutting line processing apparatus 1 for a glass plate includes a plurality of cutters 20 in a transport direction X, and a first cutter 21 processes a first cutting line A1 in a product section 11, The second cutter 22 processes the second cutting line A2 on the first ear portion 12a of the product portion 11, and the third cutter 23 performs the third cutting on the second ear portion 12b of the product portion 11. Line A3 is processed. The inclination angle θ2 at which the second cutter 22 and the third cutter 23 are inclined to the downstream side in the conveyance direction X with respect to the direction Y orthogonal to the conveyance direction X is larger than the inclination angle θ1 of the first cutter 21. The time for the second cutter 22 and the third cutter 23 to process the cutting line A on the ear portion 12 becomes longer, and the ear portion 12 can be easily cut.
[Selection] Figure 2

Description

  The present invention relates to a cutting line processing apparatus for a glass plate.

  A technique for processing a cutting line with a cutter while conveying a glass plate is known (Patent Document 1).

  Patent document 1 cuts into the said ear | edge part of the said glass plate, conveying the glass plate which has a product part in the center part of the direction orthogonal to a conveyance direction and an ear | edge part in the both sides of this product part in the said conveyance direction. A cutting line processing apparatus and a cutting line processing method for a glass plate provided with a first cutter for processing a wire and a second cutter for processing a cutting line on the product part, and having ears on both sides It is disclosed that a stable cutting line can be processed on a glass plate.

International Publication No. 2013/108472

  Even if different cutters are used for the product part and the ear part in Patent Document 1, since they are parallel, they run at the same running speed, and when the line speed becomes high, the cutting at the ear part becomes sweet, and the ears There is a problem that the cutting tends to be rough at the part.

  This invention is made | formed in view of the said subject, Comprising: The main objective is to provide the cutting line processing apparatus of the glass plate which can process a cutting line reliably also at an ear | edge part.

  The apparatus for processing a cutting line for a glass plate of the present invention is characterized in that the glass plate having a product part at the center in a direction orthogonal to the transport direction and ears on both sides of the product part is transported in the transport direction while the glass plate is transported. The glass which processes the cutting line orthogonal to the said conveyance direction on the surface of the said glass plate by making a cutter run in the direction inclined by the predetermined angle to the downstream of the said conveyance direction with respect to the direction orthogonal to the conveyance direction of a board. A cutting line processing apparatus for a plate, wherein the cutter is a first cutter that processes a cutting line in the product part, and a second cutter that processes a cutting line in the ear part in one of the both side parts, A third cutter that processes a cutting line in the ear portion on the other of the two side portions, and the second cutter and the third cutter are in the transport direction with respect to a direction orthogonal to the transport direction. Downstream of The inclination angle of inclined is larger than the inclination angle of the first cutter.

  According to this invention, the 2nd cutter and the 3rd cutter are made into an ear | edge part by making the inclination angle of the 2nd cutter and the 3rd cutter which process a cutting line into an ear | edge part larger than a 1st cutter. The time for processing the cutting line becomes longer, and the cutting of the ear portion can be facilitated. Moreover, even if the conveyance speed of the glass plate is increased, since the time for processing the cutting lines of the second cutter and the third cutter is long, a stable and reliable cutting line can be processed.

The perspective view which shows an example of 1st Embodiment of the cutting line processing apparatus of the glass plate which concerns on this invention. The top view of the cutting line processing apparatus of the glass plate of 1st Embodiment which concerns on this invention. The block diagram of the cutting line processing apparatus of the glass plate which concerns on this invention. Schematic diagram showing an example of the movement of the cutter according to the present invention, (a) at the start of processing to the product part, (b) advance to the product part, (c) processing to the product part, (d) processing to the product part End. Schematic diagram following FIG. 4, (a) At the start of processing to the ear, (b) Advance to the ear, (c) Processing to the ear, (d) End of processing to the ear. The top view which shows other embodiment which concerns on this invention, (a) 2nd Embodiment, (b) 3rd Embodiment. The top view which shows other embodiment which concerns on this invention, (a) 4th Embodiment, (b) 5th Embodiment, (c) 6th Embodiment.

  Hereinafter, specific embodiments according to the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing an example of a first embodiment of a cutting line processing apparatus for a glass plate. FIG. 2 is a perspective view illustrating an example of the first embodiment of the cutting line processing apparatus for a glass plate. Based on FIG.1 and FIG.2, the cutting line processing apparatus of a glass plate is explained in full detail.

  The cutting line processing apparatus 1 for a glass plate processes the cutting line A on the surface of the glass plate 10 with respect to a direction Y orthogonal to the transport direction X while transporting the belt-shaped glass plate 10 in the transport direction X. Moreover, with respect to the conveyance direction X, the side where the glass plate 10 is started to be conveyed is defined as the upstream side, and the opposite side is defined as the downstream side. 1 and 2, the right side is the upstream side and the left side is the downstream side.

  The glass plate cutting line processing apparatus 1 is suitable for manufacturing glass plates for building materials and vehicles, and glass substrates for FPD (FLAT PANEL DISPLAY) where high dimensional accuracy and shape accuracy are required.

  The glass plate 10 has a product part 11 at the center and ears 12 on both sides of the product part 11, and the ears 12 are thicker than the product part 11. Irregular traces are attached to the surface by the pressure of the assist roll. In addition, in order to show the said uneven trace, the shape of the ear | edge part 12 on the drawing is exaggerated.

  The product part 11 of the glass plate 10 has a predetermined thickness (for example, 0.05 to 5 mm, preferably 0.1 to 0.7 mm) and a width (for example, 1500 to 3500 mm).

  The cutting line processing apparatus 1 for a glass plate includes a plurality of cutters 20 in the transport direction X, and each processes a predetermined cutting line A. The first cutter 21 processes the first cutting line A1 in the product part 11, and the second cutter 22 has the second cutting line A2 in the first ear part 12a on one of both side parts of the product part 11. The third cutter 23 processes the third cutting line A3 in the second ear portion 12b on the other of the both side portions of the product portion 11.

  The cutter 20 is also a cutter wheel and is supported by a guide member 30 disposed in the orthogonal direction Y, and is positioned above the glass plate 10. The first cutter 21 is supported so as to be movable along the first guide member 31, and the second cutter 22 is supported so as to be movable along the second guide member 32. The third cutter 23 is supported so as to be able to travel along the third guide member 33. The moving direction of the cutter 20 is indicated by an arrow on the drawing.

  The guide member 30 is inclined at a predetermined inclination angle θ on the downstream side in the conveyance direction X, so that the cutting line A processed by the cutter 20 generated on the surface of the glass plate 10 conveyed at a predetermined speed is in the conveyance direction. Orthogonal to X. In the present embodiment, the inclination angle θ1 of the first cutter 21 and the inclination angles θ2 of the second cutter 22 and the third cutter 23 are different. That is, the inclination angle θ2 at which the second cutter 22 and the third cutter 23 are inclined to the downstream side in the conveyance direction X with respect to the direction Y orthogonal to the conveyance direction X is greater than the inclination angle θ1 of the first cutter 21. large. Further, the inclination angle θ1 of the first cutter 21 is preferably 5 to 40 degrees.

  The change of the inclination angle θ of the cutter 20 can be realized by changing the inclination angle θ of the guide member 30. In the present embodiment, the inclination angle θ <b> 2 of the second guide member 32 and the third guide member 33 is positioned larger than the inclination angle θ <b> 1 of the first guide member 31.

  In 1st Embodiment, after processing the 1st cutting line A1 to the product part 11 with the 1st cutter 21, the 2nd cutting line 22 processes the 2nd cutting line A2 to the 1st ear | edge part 12a. At the same time, the third cutting line A3 is processed into the second ear portion 12b by the third cutter 23, whereby a continuous cutting line A is obtained.

  Thus, the inclination angle θ2 of the second cutter 22 and the third cutter 23 that process the second cutting line A2 and the second cutting line A2 on the first ear part 12a and the second ear part 12b is set to the first ear part 12a and the second ear part 12b. By making it larger than one cutter 21, the time for the second cutter 22 and the third cutter 23 to process the cutting lines A2 and A3 on the respective ear portions 12a and 12b becomes longer, and the cutting of the ear portion 12 is ensured. Can be made easier. In addition, even if the conveying speed of the glass plate 10 is increased, the time for processing the cutting lines A2 and A3 of the second cutter 22 and the third cutter 23 is long, so that one stable and reliable continuous line is obtained. The cutting line A can be processed sequentially.

  In the cutting line processing step of the present embodiment, the glass plate 10 is moved on the transfer line in a horizontal direction by a known transfer means such as a roller conveyor (for example, transfer speed v: 0.05 to 2.0 m / second). s) and pass through the processing area of the cutting line processing apparatus 1 for the glass plate. The glass plate cutting line processing apparatus 1 includes a traveling speed in which the cutter 20 positioned above the glass plate 10 travels in the horizontal direction on the surface of the glass plate 10 (the surface on which the cutting line A is processed), and the glass plate 10. The cutting line A in the direction Y orthogonal to the transport direction X is processed on the surface of the glass plate 10 passing through the processing area by controlling the advancing and retreating operation with respect to the surface.

  A step of applying a bending moment to the glass plate 10 on which the cutting line A has been processed, and cutting the glass plate 10 along the cutting line A into a rectangular glass plate, following the cutting line processing step by the cutting line processing apparatus 1 for the glass plate. A step of cutting and removing the ear portion 12 of the cut rectangular glass plate from the product portion 11 is provided.

  It is also possible to change the traveling speed of the cutter 20. By making the traveling speed of the second cutter 22 and the third cutter 23 smaller than the traveling speed of the first cutter 21, the cutting line A of the ear portion 12 can be processed accurately, and the cutting can be cut cleanly. It becomes possible. Moreover, even if the conveyance speed of the glass plate 10 is increased, the traveling speed of the second cutter 22 and the third cutter 23 is low, so that a stable and reliable cutting line A can be processed.

  By increasing the distance between the second guide member 32 and the third guide member 33 as it proceeds downstream in the transport direction X, the cutter 20 can be accurately applied to the surface of the ear portion 12, and cutting is performed. The processing of the line A is performed reliably.

  Since the plurality of cutters 20 are supported by the respective guide members 30 so as to be independently movable and movable, the first cutter 21, the second cutter 22, and the third cutter 23 can travel without causing interference. Thus, one cutting line A can be processed on the surface of the glass plate 10 in the direction Y orthogonal to the conveyance direction X of the glass plate 10.

  FIG. 3 is a block diagram showing a configuration of the glass sheet cutting line processing apparatus 1. The control mechanism of the cutter 20 will be described based on FIG.

  The glass plate cutting line processing apparatus 1 includes a servo motor 40 (41 to 43) that is a drive source for moving the cutter 20 along the guide member 30 and the vertical direction of the cutter 20 with respect to the surface of the glass plate 10. And a forward / backward drive means 50 (51-53) which is a servo motor which is a drive source for moving forward and backward, and a control unit 60 which controls the servomotor 40 and the forward / backward drive means 50 in an integrated manner.

  The movement of the first cutter 21 is controlled by the first servo motor 41 and the first advance / retreat driving means 51, and the second cutter 22 is moved by the second servo motor 42 and the second advance / retreat driving means 52. The movement of the third cutter 23 is controlled by the third servo motor 43 and the third forward / backward driving means 53.

  The servo motor 40 and the advance / retreat driving means 50 are rotationally controlled in accordance with a position command output from the control unit 60, for example, a pulse train of a predetermined frequency. The servo motor 40 is connected to the cutter 20 via a known drive mechanism (not shown) such as a ball screw device, and rotates in accordance with a position command from the control unit 60. Then, the cutter 20 is moved along the guide member 30 by being converted into a linear motion. Similarly, the advancing / retreating drive unit 50 is connected to the cutter 20 via a known drive mechanism (not shown) such as a ball screw device, and rotates according to a position command from the control unit 60. The cutter 20 is moved forward and backward with respect to the surface of the glass plate 10 by converting it into a linear motion via the drive mechanism.

  Thereby, the cutting line A is processed by the cutter 20 in the direction Y orthogonal to the conveyance direction X on the surface of the glass plate 10.

  The cutter 20 can control the traveling speed that moves along the guide member 30. When the traveling speed is w and the conveyance speed is V, the traveling speed w can be expressed by V / cos θ.

  The servo motor 40 and the advance / retreat driving means 50 are preferably linear servo motors. If it is a linear servo motor, the cutter 20 can respond to the position command signal from the control unit 60 at a high speed.

  The second cutter 22 and the third cutter 23 are set to have a pressing force capable of processing a good cutting line A in the ear portion 12, and those having conditions such as a blade edge angle are used. For example, the cutting edge angles of the second cutter 22 and the third cutter 23 are 80 to 150 degrees, but the cutting edge angle of the first cutter 21 is the cutting edge of the second cutter 22 and the third cutter 23. An obtuse angle is preferable to an angle.

  Moreover, since the 1st cutter 21 processes the cutting line A only in the product part 11, and the 2nd cutter 22 and the 3rd cutter 23 process the cutting line A only in the ear | edge part 12, the product part 11 is processed. In addition, the service life is greatly extended as compared with a cutter that simultaneously processes the cutting line A on both the ears 12. Thereby, the replacement work of the cutter 20 is greatly reduced, and the occurrence of cullet is also reduced, so that the productivity and quality of the glass plate 10 are improved.

  And it is preferable that the pressing force of the 2nd cutter 22 and the 3rd cutter 23 with respect to the ear | edge part 12 is set higher than the pressing force of the 1st cutter 21 with respect to the product part 11. FIG. In addition, the second cutter 22 and the third cutter 23 are those having conditions such as a cutting edge angle that can process the first cutting line A1 and the second cutting line A2 that are favorable to the ear portion 12, The first cutter 21 is provided with conditions such as a cutting edge angle capable of processing a good cutting line A1 in the product portion 11. Thereby, since one good continuous cutting line A can be processed in the ear | edge part 12 and the product part 11, a cullet does not generate | occur | produce at the time of the cutting | disconnection of the glass plate 10, and the glass plate 10 with sufficient quality is obtained. Can do. The pressing force can be adjusted by the control unit 60 controlling the torque of the servo motor 40 and the advance / retreat driving means 50.

  4A and 4B are schematic diagrams showing the movement of the cutter according to the present invention, in which FIG. 4A is the start of processing to the product part, FIG. 4B is advanced to the product part, FIG. 4C is processing to the product part, d) is the end of processing the product part. FIG. 5 is a schematic diagram following FIG. 4, (a) at the start of processing into the ear, (b) advanced into the ear, (c) processed into the ear, and (d) in the ear. This is the end of processing. Based on FIG.4 and FIG.5, an example of the movement of the cutter 20 of 1st Embodiment is demonstrated. Each cutter 20 repeats movement and advance / retreat, but in the example, a procedure for processing one cutting line A is described.

<Fig. 4 (a): At the start of processing to the product part>
The first cutter 21 is moved along the first guide member 31 in the width direction (Y direction) of the glass plate 10 by the first servo motor 41 with respect to the conveyed glass plate 10. When the first cutter 21 travels in the width direction region of the first ear portion 12a, the first cutter 21 is retracted from the first ear portion 12a to move above the first ear portion 12a.

<Fig. 4 (b): Advance to the product department>
When the first cutter 21 reaches the boundary P <b> 1 between the first ear portion 12 a and the product portion 11, the first cutter 21 is moved to the product portion 11 of the glass plate 10 by driving the first advance / retreat driving means 51. Advance toward the surface.

<Fig. 4 (c): Processing to product part>
The first cutter 21 is moved along the first guide member 31 by the drive of the first servo motor 41, and travels in the width direction region of the product part 11, and the first cutting line is formed on the surface of the product part 11. A1 is processed.

<FIG. 4 (d): Completion of processing to product part>
The first cutter 21 is moved along the first guide member 31 by the drive of the first servo motor 41, travels in the width direction region of the product part 11, and the product part 11 and the second ear part 12b. When the boundary P2 is reached, the first advance / retreat driving means 51 is retracted from the surface of the product portion 11 by driving.

<FIG. 5 (a): At the start of processing into the ear>
When the cutting line A1 processed by the first cutter 21 approaches the second cutter 22 and the third cutter 23, the second servo motor 42 and the third servo motor 43 are driven to drive the second cutter 22 and The third cutter 23 travels in the width direction region of the product part 11. When traveling, the product unit 11 is moved away from the product unit 11 to move upward.

<Figure 5 (b): Advance to the ear>
When the second cutter 22 reaches the boundary P <b> 1 between the first ear portion 12 a and the product portion 11, the second cutter 22 is driven by the second advance / retreat driving means 52 so that the second cutter 22 becomes the first ear of the glass plate 10. It advances toward the surface of the part 12a. When the third cutter 23 reaches the boundary P <b> 2 between the second ear portion 12 b and the product portion 11, the third cutter 23 is driven by the second advancing / retreating drive unit 53 to cause the third cutter 23 to move to the second portion of the glass plate 10. It advances toward the surface of the ear part 12b.

<FIG. 5 (c): Processing on the ear>
The second cutter 22 is moved along the second guide member 32 by the driving of the second servo motor 42, and travels in the width direction region of the first ear portion 12a while the surface of the first ear portion 12a. The second cutting line A2 is processed. The third cutter 23 moves along the third guide member 33 by driving the third servo motor 43, and travels in the width direction region of the second ear portion 12b while moving the second ear portion 12b. A third cutting line A3 is machined on the surface. On the other hand, the first cutter 21 moves along the first guide member 31 by driving the first servo motor 41 for processing the next cutting line A, and returns to the original position.

<FIG. 5 (d): End of processing on the ear>
The second cutter 22 is moved along the second guide member 32 by driving the second servo motor 42, travels in the width direction region of the first ear portion 12 a, and the edge portion 13 of the glass plate 10. The second advance / retreat driving means 52 is retracted from the surface of the first ear portion 12a and the edge portion 13 by driving. Further, the third cutter 23 is moved along the third guide member 33 by driving of the third servo motor 43, travels in the width direction region of the second ear portion 12 b, and the edge of the glass plate 10. When the part 13 is reached, the third advance / retreat driving means 53 is retracted from the surface of the second ear part 12b and the edge part 13 by driving.

  Thereby, each cutter 20 moves independently, advances when the cutting line A is processed by the advance / retreat driving means 50, and retreats when the cutting line A is not processed, so that the desired cutting line A is placed at a predetermined position. Can be processed. Moreover, since the 2nd cutter 22 and the 3rd cutter 23 process the cutting line A from the boundary P of the product part 11 and the ear | edge part 12, the timing of the movement start of the 2nd cutter 22 and the 3rd cutter 23 is set. This can be performed accurately, and the overlap of the cutting line A at the boundary P can be avoided.

  FIG. 6 is a plan view showing another embodiment according to the present invention, in which (a) is a second embodiment and (b) is a third embodiment. FIG. 7 is a plan view showing another embodiment according to the present invention, wherein (a) is a fourth embodiment, (b) is a fifth embodiment, and (c) is a sixth embodiment. . Based on FIG.6 and FIG.7, 6th Embodiment is described from 2nd Embodiment of the cutting line processing apparatus 1 of a glass plate. Since the 1st cutter 21 and the 1st guide member 31 are common in each embodiment, explanation is omitted.

  In the second embodiment, the third cutter 23 is on the upstream side with respect to the first cutter 21. The third cutter 23 processes the third cutting line A3 on the second ear portion 12b, and then the first cutter 21 processes the first cutting line A1 on the product portion 11, and the second cutter 22, the second cutting line A2 is processed in the first ear portion 12a.

  In the third embodiment, the second cutter 22 and the third cutter 23 are upstream of the first cutter 21. The second cutter 22 processes the second cutting line A2 on the first ear portion 12a and the third cutter 23 processes the third cutting line A3 on the second ear portion 12b. A first cutting line A <b> 1 is processed in the product portion 11 with the cutter 21.

  In the fourth embodiment, the arrangement of the cutters 20 is the same as that of the first embodiment, but the traveling movement directions of the second cutter 22 and the third cutter 23 are the same. The first cutter 21 processes the first cutting line A1 in the product portion 11, and the second cutter 22 then processes the first cutting edge Aa from the edge 13 toward the boundary P1. And the third cutter 23 processes the third cutting line A3 from the boundary P2 toward the edge 13 on the second ear 12b.

  The fifth embodiment is the same as the fourth embodiment, but the traveling directions of the second cutter 22 and the third cutter 23 are opposite. After processing the first cutting line A1 on the product part 11 with the first cutter 21, the second cutting line A2 is applied to the first ear part 12a from the boundary P1 toward the edge 13 with the second cutter 22. In addition, the third cutter 23 processes the third cutting line A3 from the edge 13 toward the boundary P2 in the second ear 12b.

  In the sixth embodiment, the inclinations of the second cutter 22 and the third cutter 23 of the first embodiment are reversed. After processing the first cutting line A1 in the product part 11 with the first cutter 21, the second cutting line 22 is applied to the first ear part 12a from the edge 13 toward the boundary P1 with the second cutter 22. In addition, the third cutter 23 processes the third cutting line A3 from the edge 13 toward the boundary P2 in the second ear 12b.

  It is possible to arrange the second cutter 22 and the third cutter 23 on the downstream side or the upstream side with the first cutter 21 as the center, and the second cutter 22 and the third cutter 23 The traveling direction can also be changed. Depending on the conveyance speed, thickness, width, and the like of the glass plate 10 to be conveyed, it is possible to select an optimal arrangement of the cutters 20, a processing procedure, a processing speed, and the like.

  In addition, this invention is not limited to embodiment mentioned above, A deformation | transformation, improvement, etc. are possible suitably. In addition, the material, shape, dimension, numerical value, form, number, location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  The glass plate cutting line processing apparatus of the present invention is suitably used in a field that requires that a clean cutting line can be processed even if the conveying speed of the glass plate is increased.

DESCRIPTION OF SYMBOLS 1 Glass plate cutting line processing apparatus 10 Glass plate 11 Product part 12 Ear part 12a 1st ear part 12b 2nd ear part 13 Edge 20 Cutter 21 1st cutter 22 2nd cutter 23 3rd cutter 30 Guide member 31 First guide member 32 Second guide member 33 Third guide member 40 Servo motor 41 First servo motor 42 Second servo motor 43 Third servo motor 50 Advance / retreat drive means 51 First advance / retreat Driving means 52 Second advancing / retreating driving means 53 Third advancing / retreating driving means 60 Control section A cutting line A1 first cutting line A2 second cutting line A3 third cutting line P boundary P1 product section and first ear Boundary with the part P2 Boundary between the product part and the second ear part θ Inclination angle θ1 Inclination angle of the first cutter (first guide member) θ2 The second cutter and the third cutter -Inclination angle of (second guide member and third guide member)

Claims (5)

While transporting in the transport direction a glass plate having a product part and ears on both sides of the product part in the center of the direction orthogonal to the transport direction, the direction perpendicular to the transport direction of the glass plate, A cutting line processing device for a glass plate that processes a cutting line perpendicular to the transport direction on the surface of the glass plate by running a cutter in a direction inclined at a predetermined angle downstream of the transport direction,
The cutter is
A first cutter for processing a cutting line in the product part;
A second cutter for processing a cutting line in the ear portion at one of the two side portions;
A third cutter for processing a cutting line in the ear portion on the other of the both side portions,
The inclination angle at which the second cutter and the third cutter are inclined toward the downstream side in the conveyance direction with respect to the direction orthogonal to the conveyance direction is larger than the inclination angle of the first cutter.
Glass plate cutting line processing equipment. The traveling speed of the second cutter and the third cutter is smaller than the traveling speed of the first cutter,
The cutting line processing apparatus of the glass plate of Claim 1. The first cutter is supported movably along a first guide member inclined at a predetermined inclination angle downstream of the conveyance direction with respect to a direction orthogonal to the conveyance direction,
The second cutter is disposed adjacent to the first guide member and travels along the second guide member disposed at an inclination angle larger than the inclination angle of the first guide member. Supported by
The third cutter is disposed adjacent to the first guide member and is movable and movable along a third guide member disposed at an inclination angle larger than the inclination angle of the first guide member. Supported by
The distance between the second guide member and the third guide member increases as the distance from the downstream side in the transport direction increases.
The cutting line processing apparatus of the glass plate of Claim 1 or 2. The first cutter is controlled to move forward and backward with respect to the surface of the glass plate by a first advancing / retreating drive means, and is retracted from the ear when traveling in the width direction region of the ear, and the product portion When traveling in the width direction area, it is advanced toward the product section,
The second cutter is controlled to advance and retreat relative to the surface of the glass plate by a second advancing / retreating drive unit, and is advanced toward the ear when traveling in the width direction region of the ear, When traveling in the width direction area of the product part, it is retracted from the product part,
The third cutter is controlled to advance and retreat with respect to the surface of the glass plate by a third advancing / retreating driving means, and is advanced toward the ear when traveling in the width direction region of the ear, When traveling in the width direction area of the product part, it is retracted from the product part,
The second cutter and the third cutter are advanced toward the ear part at the boundary between the product part and the ear part, and after running through the ear part, are retracted from the edge of the glass plate,
The cutting line processing apparatus of the glass plate of Claim 3.   The pressing force of the second cutter and the third cutter on the ear portion is set higher than the pressing force of the first cutter on the product portion. The cutting line processing apparatus of the glass plate of description.

Images