JPH07106922B2 - Glass plate breaking machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass sheet breaking machine.

[0002]

2. Description of the Related Art In a glass plate breaking machine, a glass plate having a score line is placed on an endless belt, and a pushing device is folded above the glass plate in a plane parallel to the surface of the glass plate. While moving along the score line, the glass plate receiving member is moved below the glass plate in correspondence with the movement of the pushing and splitting device. Then, the glass plate receiving member in the conventional glass plate breaking machine is provided with a fixed step, and the glass plate is pressed by pressing the cutter blade against the portion of the glass plate supported by the upper surface defining the fixed step. An end cut line (auxiliary cut line) is formed on the bottom of the glass plate, and then a fixed step is arranged on the score line of the glass plate on which the end cut line is formed in this way. The glass plate is broken along the score line by pressing it toward the surface.

[0003]

By the way, when the glass plate receiving member is formed by providing the upper surface and the lower surface through the fixed step as described above, when the edge cutting line is formed, it is pressed by the cutter blade. Only the upper surface, which is surrounded by the substantially lower surface, can support the part of the glass plate to be cut, and therefore the cutter blade must be positioned relative to this upper surface, so that the cutter The relative positioning accuracy of the blade must be high. Further, since it is the upper surface of the small area surrounded by the lower surface that can support the glass plate, the support may be unstable.

The present invention has been made in view of the above points, and an object thereof is to widen a supporting surface capable of supporting a portion of a glass plate pressed by a cutter blade,
However, the glass plate can be reliably supported and the glass plate can be stably supported without increasing the relative positioning accuracy between the cutter blade and the support surface supporting the portion of the glass plate pressed by the cutter blade. It is an object to provide a glass plate breaking machine capable of supporting a plate.

[0005]

According to the present invention, the above object is to provide a flexible endless belt on which a glass plate is mounted, a traveling device for running the endless belt, and a glass plate through the endless belt. A glass plate receiving device having a supporting surface for supporting the glass plate, a first moving device for moving the supporting surface of the glass plate receiving device in a plane parallel to the surface of the glass plate, and a cutter arranged above the endless belt. A slitting device having a blade and a push rod, a second moving device for moving the cutter blade and the pushing rod of this slitting device in a plane parallel to the surface of the glass plate, and a slitting device for the glass plate on the endless belt. In each of the cutting line formation and the slitting by the cutter blade and the push rod, the movement positions of the supporting surface of the glass plate receiving device by the first and second moving devices and the respective moving positions of the cutter blade and the push rod of the slitting device are paired. And a control device for controlling the operation of the first and second moving devices so that the supporting surface of the glass plate receiving device is movable back and forth with respect to the lower surface of the glass plate, It has a movable support surface that supports the glass plate through the glass plate, and another support surface that supports the glass plate through the endless belt.The glass plate receiving device is a device that cuts the glass plate by the cutter blade of the slitting device. In forming the line, the movable supporting surface and the other supporting surface are flush with each other, and in the case of the push splitting of the push rod of the splitting device, the movable supporting surface is formed so as to form a step between the movable supporting surface and the other supporting surface. Is achieved by a glass plate breaking machine equipped with advancing / retreating means for advancing / retreating with respect to the lower surface of the glass plate.

In one preferred embodiment of the invention, the advancing and retracting means comprises a cylinder device, the movable supporting surface being provided on the piston rod of this cylinder device and the other supporting surface around the movable supporting surface. It is distributed.

[0007]

In the glass sheet breaking machine of the present invention thus constructed, a cutting line (auxiliary cutting line) is attached to the glass sheet placed on the endless belt by the cutter blade of the pushing and breaking device. . During operation of the cutter blade, the movable supporting surface of the glass plate receiving device is flush with the other supporting surface, and the movable supporting surface and the other supporting surface support the glass plate through the endless belt. After the cut line (auxiliary cut line) is applied, the glass plate is pushed along the cut line (auxiliary cut line) by the push rod of the split device. And, for example, during operation of the push rod,
The movable supporting surface of the glass plate receiving device is lifted to form a step between the movable supporting surface and another supporting surface, and the step is arranged on the cutting line, and the movable supporting surface is attached to the glass through the endless belt. While supporting the plate, the other supporting surface faces the push rod. Then, the glass plate receiving device is moved by the first moving device in response to the movement of the splitting device.

Hereinafter, the present invention will be described in more detail based on specific examples shown in the drawings. This will make the above invention and other inventions clear. The present invention is not limited to these specific examples.

[0009]

SPECIFIC EXAMPLE Referring to FIGS. 1 to 6, a glass plate folding machine 1 has a flexible endless belt 3 on which a glass plate 2 is placed.
And a plurality of glass plate receiving devices 4, 4a, 4b and 4c, which are four glass plate receiving devices 4 in this example, arranged on the inner surface side of the endless belt 3, respectively.
Each of the glass plate receiving devices 4, 4a, 4b, and 4c is arranged in a plane parallel to the surface of the glass plate 2, that is, in this example, the X direction, which is one direction in the horizontal plane, and another direction that intersects with the X direction. In this example, a plurality of moving units in the Y direction orthogonal to the X direction, in this example, four first moving devices 5, 5a, 5b, and 5c, and a plurality of units arranged above the endless belt 3 in this example Then, the two splitting devices 6 and 6a and the splitting devices 6 and 6a, respectively, in the horizontal direction in one direction of the X direction and the other direction intersecting the X direction, in this example, the Y direction orthogonal to the X direction. A plurality of second moving devices 7 and 7 in this example.
a and the glass plate 2 placed on the endless belt 3 by the glass-pushing devices 6 and 6a, the glass plates receiving devices 4, 4a, 4b and 4a, 4a, 4b, and 5a, 5a, 5b and 5c. 4c and moving devices 5, 5a, 5b and 5c and moving devices 7 and 7 so as to correspond to the moving positions of the splitting devices 6 and 6a.
A control device (not shown) that controls the operation of a, a traveling device 8 that travels the endless belt 3, and a lifting device 9 that lifts the glass plate 2 on the endless belt 3 are provided.

Glass plate receiving devices 4, 4a, 4b and 4c
The moving devices 5, 5a, 5b and 5c, the splitting devices 6 and 6a, and the moving devices 7 and 7a are respectively configured in the same manner. , The glass plate receiving device 4, the moving device 5, the splitting device 6, and the moving device 7 will be described, and corresponding parts are shown only by adding a, b and c to the same numeral symbols.

The glass plate receiving device 4 comprises a cylinder device 15 as advancing and retracting means, and a cylindrical body 16 surrounding the cylinder device 15.
A disk 17 having an upper surface 201 as a movable supporting surface that is movable back and forth with respect to the lower surface of the glass plate 2 is attached to the piston rod of No. 2, and the annular upper surface 202 of the cylindrical body 16 arranged around the upper surface 201. Is another fixed support surface. In this way, the supporting surface of the glass plate receiving device 4 includes the movable supporting surface (upper surface 201) and another supporting surface (upper surface 2).
02) and. In this example, the cylinder device 15 is an air cylinder, but it may be a hydraulic cylinder instead. By the vertical movement of the disk 17 due to the supply and discharge of high-pressure air to the cylinder device 15, the upper surface 201 is moved in the vertical direction, that is, the Z direction, and is moved back and forth with respect to the lower surface of the glass plate 2. The upper surface 202 is parallel to the upper surface 20 of the central support 19 attached to the substantially central portion of the frame 18 and the upper surface 22 of the belt support plate 21 also attached to the frame 18, and is arranged at the same height. In the lowered position of the disk 17, the upper surface 201 is flush with the upper surface 202 as shown in FIG. 5, and in the raised position of the disk 17, the upper surface 201 slightly lifts the belt 3 as shown in FIG. It is raised about 1 mm. By arranging the upper surface 201 higher than the upper surface 202, an annular step is formed between the upper surface 201 and the upper surface 202.

The belt supporting plate 21 is formed with four windows or openings 23, 23a, 23b and 23c, and the glass plate receiving device 4 arranged corresponding to the openings 23, 23a, 23b and 23c. 4a, 4b and 4c respectively have X and Y in the openings 23, 23a, 23b and 23c.
It is designed to be moved in the direction.

The moving device 5 comprises an X-direction moving mechanism 25 and a Y-direction moving mechanism 26. The X-direction moving mechanism 25 is a linear moving stand 27 to which the cylinder device 15 and the cylindrical body 16 of the glass plate receiving device 4 are attached. And an electric motor 29 attached to the machine frame 28. An output rotation shaft of the motor 29 is connected to a screw shaft 32 rotatably supported by the machine frame 28 via bearings 30 and 31. Screw shaft 3
A nut 33 attached to the linear moving base 27 is screwed onto the position 2. The linear moving base 27 is supported by a pair of rails 34 formed on the machine frame 28 so as to be movable in the X direction via a slider 35. In this way, the linear moving base 27 has its output rotary shaft driven by the operation of the motor 29. Rotation of screw shaft 3
When 2 is rotated, it is linearly moved in the X direction. The Y-direction moving mechanism 26 is configured almost the same as the X-direction moving mechanism 25, and includes a linear moving base 36 that supports the machine frame 28, and an electric motor 38 attached to the machine frame 37.
The output rotating shaft of the motor 38 is mounted on the machine frame 37 with bearings 39 and 4
The screw shaft 41 is rotatably supported via 0, and a nut 42 attached to the linear movement base 36 is screwed onto the screw shaft 41. The linear moving base 36 is supported by a pair of rails 43 formed on the machine frame 37 so as to be movable in the Y direction via a slider 44. Thus, the linear moving base 36 has its output rotary shaft driven by the operation of the motor 38. When the screw shaft 41 is rotated by the rotation of, the linear movement is performed in the Y direction.

The push splitting device 6 is an air cylinder device 4
A push rod 48 attached to the piston rod 47 of 6;
A cutter blade 52 attached to a piston rod 50 of an air cylinder device 49 via a bearing mechanism 51 and an electric motor 53 are provided. A pulley or gear 54 is attached to the output rotary shaft of the motor 53, and a pulley or gear 58 is attached to the outer cylinder 55 of the air cylinder device 49 via a bracket 56 and a bearing mechanism 57 attached to the bracket 56. The gear 54
A belt, a timing belt, or a chain 59 is stretched between and 58. The gear 1 has a slit 1
54 is attached to the engaging member 155,
An engagement piece 157 attached to a cutter block 156 that supports the cutter blade 52 is arranged in the slit 154, and the cutter block 156 is arranged in the R direction around the shaft center 159 on the piston rod 50 via the bearing mechanism 51. It is rotatably attached to. In the thus-formed splitting device 6, when the piston rod 47 is advanced and retracted by the operation of the air cylinder device 46, the push rod 48 is moved in the vertical direction, that is, the Z direction, and the air cylinder device 49.
When the piston rod 50 is advanced and retracted by the operation of, the cutter blade 52 is moved in the Z direction, and when the gear 54 is rotated by the rotation of the gear 54 by the operation of the motor 53 via the chain 59, the engaging member 155 and Slit 1 in the engaging member 155
The engaging piece 157 that engages at 54 is also rotated in the R direction about the shaft center 159, and the cutter blade 52 is also rotated in the R direction about the shaft center 159 by this rotation, and the cutting edge is in the cutting line forming direction. Be directed.

The moving device 7 comprises an X-direction moving mechanism 60 and a Y-direction moving mechanism 61. The X-direction moving mechanism 60 includes a linear moving table 62 for supporting the air cylinder devices 46 and 49 of the slitting device 6 and the motor 53. , And an electric motor 64 attached to the machine frame 63.
Is connected to a screw shaft 66 that is rotatably supported by the machine frame 63 via bearings 65 and 65. The screw shaft 66 has a nut 6 attached to the linear movement base 62.
7 is screwed. The linear moving base 62 is supported by a pair of rails 68 attached to the machine frame 63 so as to be movable in the X direction via sliders (not shown), and thus the linear moving base 62 is operated by the motor 64. When the screw shaft 66 is rotated by the rotation of the output rotation shaft, the screw shaft 66 is linearly moved in the X direction. The Y-direction moving mechanism 61 is configured almost the same as the X-direction moving mechanism 60, and includes a linear moving base 70 that supports the machine frame 63, and an electric motor 72 attached to the upper lateral member 71. The output rotation shaft of the motor 72 is connected to a screw shaft 73 that is rotatably supported by an upper lateral member 71 via a bearing (not shown), and the screw shaft 73 is attached to the linear movement base 70. The nut 74 is screwed. The linear moving table 70 is suspended and supported by a pair of rails 75 formed on the upper lateral member 71 via a slider 76 so as to be movable in the Y direction. When the screw shaft 73 is rotated by the rotation of the output rotation shaft, the screw shaft 73 is linearly moved in the Y direction. The upper lateral member 71 is attached to the upper frame 80.

The traveling device 8 is equipped with an electric motor 86 mounted on a base 85, a driving drum 87 and a driven drum 88, and the driving drum 87 and the driven drum 88 together with the frame 18 are the base 85. It is rotatably mounted on a frame 89 supported by the drive drum 87.
The belt 3 is stretched between the driven drum 88 and the driven drum 88. A belt 94 is stretched between a pulley 91 attached to one end of the center shaft 90 of the drive drum 87 and a pulley 93 attached to the output rotation shaft 92 of the motor 86, and the motor 86 is operated. When the output rotation shaft 92 thereof is rotated, the drive drum 87 is rotated via the pulley 93, the belt 94, the pulley 91 and the center shaft 90, and the rotation of the drive drum 87 causes the belt 3 to travel in the A direction, for example.
As a result, the belt 3 conveys the cullet folded on the belt 3 in the A direction and discharges it.

The lifting device 9 includes an air cylinder device 95 attached to the upper frame 80 and a vacuum suction device 97 attached to the tip of the piston lot 96 of the air cylinder device 95.
When the piston rod 96 is moved back and forth in the Z direction by the operation of, the vacuum sucker device 97 lifts the glass plate 2 placed on the belt 3 or moves the glass plate 2 placed on the belt 3 into a belt. It is clamped in cooperation with the central support 19 via 3 and fixed on the belt 3.

The control device (not shown) includes motors 29, 3
The operation of 8, 53, 64, 72 and 86 and the air cylinder devices 15, 46, 49 and 95 and the vacuum suction device 97 are controlled via preprogrammed numerical control commands.

The glass sheet breaking machine 1 of the present embodiment thus constructed carries out the breaking operation on the glass sheet 2 as follows.

First, the planned split line 100 (main cutting line)
The glass plate 2 marked with is placed on the belt 3. The planned dividing line 100 may be attached by the glass plate breaking machine 1 of this example. Next, the air cylinder device 95 is operated to lower the vacuum sucker device 97,
The glass plate 2 is provided between the vacuum sucker device 97 and the central support base 19.
The upper surface 201 as shown in FIG.
And the upper surface 202 are flush with each other, and the upper surface 201a and the upper surface 20 are
Cylinder devices 15 and 15a such that they are flush with 2a
Is operated to place the disks 17 and 17a in the lower position.
Thereafter, the motors 29 and 29a and 38 and 38a are operated to move the glass plate receiving devices 4 and 4a in the X and Y directions so that the upper surfaces 201 and 201a are arranged below the cutter blades 52 and 52a, and Motor 64
And 64a and 72 and 72a to move the splitting devices 6 and 6a in the X and Y directions to cut the cutter blade 5.
2 and 52a are moved in the radial direction starting from the planned split line 100. At the same time when the cutter blades 52 and 52a move from the planned splitting line 100, the air cylinder device 49
And 49a are actuated to bring the cutter blades 52 and 52a into contact with the glass plate 2, whereby the cutter blades 52 and 52a
Thus, an end cutting line (auxiliary cutting line) is formed on the glass plate 2. While the end cutting line is being formed, the cutter blade 5 moves in the direction of forming the end cutting line.
The motor 53 is operated so that the blade edges of 2 and 52a are directed. During formation of the end cut line, the push rods 48 and 48a
Are raised without contacting the glass plate 2.
When one edge cutting line is formed in this manner, the slitting devices 6 and 6a and the glass plate receiving devices 4 and 4a are moved to the next edge cutting line forming position, and the cutter blade 52 moves the edge cutting line in the area of the window 23. The cutter blade 52a forms the end cutting lines in the area of the window 23a. During the formation of the end cutting line, the upper surfaces 201 and 201a are cut by the cutter blades 52 and 52a.
The glass plate receiving devices 4 and 4a are moved corresponding to the movement of the cutter blades 52 and 52a so as to receive the pressing force of via the glass plate 2 and the belt 3.

When the formation of the end cutting lines in the areas of the windows 23 and 23a is completed, the cutter blades 52 and 52a are then moved to the windows 23b.
And 23c area, and at the same time the motor 29b and 2
9c and 38b and 38c are operated to move the glass plate receiving devices 4b and 4c in the X and Y directions, and the upper surfaces 201b and 201c, which are flush with the upper surfaces 202b and 202c as described above, have the cutter blades 52 and 52a and the windows 23b and 2 in the same manner as above.
Edge cutting lines are formed in the 3c region.

When the formation of the end cutting lines in the windows 23b and 23c is also completed, the air cylinder devices 49 and 49a are then actuated to raise the cutter blades 52 and 52a to raise the cutter blades 52 and 52a and the glass plate 2. While the contact with the upper surface 201b and the upper surface 201b is released, the planned step formed between the upper surface 201b and the upper surface 202b and between the upper surface 201c and the upper surface 202c is positioned on the planned split line 100.
The motors 29b and 29c and 38b and 38c are operated to move the glass plate receiving devices 4b and 4c in the X and Y directions so that c is always located inside the planned split line 100, and the motors 64, 64a and 72 are also provided. And 72a are actuated to move the splitting devices 6 and 6a in the X and Y directions so that the push rods 48 and 48a are always located outside the planned split line 100. Scheduled Break Line 1
During this movement of the glass plate receiving devices 4b and 4c and the splitting devices 6 and 6a along 00, the air cylinder devices 46 and 46a are operated at the required positions to push the push rods 48 and 48.
While lowering a, this is brought into contact with the outside of the planned breaking line 100 of the glass plate 2 to press the glass plate 2 from above,
By operating the cylinder device of the glass plate receiving devices 4b and 4c, between the upper surface 201b and the upper surface 202b and the upper surface 20.
The discs 17b and 17c are moved to the raised position so that the steps as shown in FIG. 6 are formed between the 1c and the upper surface 202c, and the glass plate 2 is passed through the belt 3 inside the planned split line 100. Support from below, which allows the glass plate 2
Push along the planned split line 100.

When the splitting along the planned split line 100 in the areas of the windows 23b and 23c is completed, the push rod 48 is then pushed.
And 48a are moved into the windows 23 and 23a area, and at the same time, the motors 29 and 29a and 38 and 38a are operated to move the glass plate receiving devices 4 and 4a in the X and Y directions, so that the upper surface 201 and the upper surface 202 are separated from each other. Between and upper surface 201
The planned step formed between the upper surface 201a and the upper surface 202a is positioned on the planned split line 100.
01a is always located inside the planned split line 100, and the splitting is performed within the windows 23 and 23a in the same manner as described above.

When the pressing and splitting in the areas of the windows 23 and 23a are also finished and the glass plate 2 which is split along the planned splitting line 100 is obtained, the air cylinder device 95 is then actuated and the vacuum sucker is pressed. The device 97 is raised and the glass plate 2 sucked by the vacuum sucker device 97 is lifted from the belt 3. With the glass plate 2 being lifted, the motor 86
When the belt 3 travels in the direction A, the folding cullet remaining on the belt 3 is transported in the direction A and discharged as the belt 3 travels. After discharging the cullet, the air cylinder device 95 is operated again, the vacuum suction device 97 is lowered, the glass plate 2 sucked by the vacuum suction device 97 is placed on the belt 3, and then the vacuum suction device 97 is deactivated. The glass plate 2 is taken out from the belt 3 and a new glass plate 2 to be broken is placed on the belt 3.

By the way, in the glass sheet breaking machine 1, the upper surface 20 is being formed while the end cutting lines are being formed by the cutter blades 52 and 52a.
1 and 202, the upper surfaces 201a and 202a, the upper surfaces 201b and 202b, and the upper surfaces 201c and 202c are flush with each other to support the glass plate 2 from below via the belt 3, so that the glass for the cutter blades 52 and 52a The relative positioning of the plate receiving devices 4, 4a, 4b and 4c is slightly deviated so that the cutter blades 52 and 52a are, for example, the upper surface 20.
2, 202a, 202b and 202c, even if located above the upper surfaces 202, 202a, 202b and 202
As a result of the glass plate 2 being supported from below by c as well,
The end cutting line will be formed as desired. In other words, the glass plate receiving devices 4 and 4 for the cutter blades 52 and 52a.
The relative positioning of a, 4b and 4c will not require much precision. Moreover, as a result of supporting the glass plate 2 from below in a large area, the glass plate 2 can be held flat during the formation of the end score line.

In the glass sheet folding machine 1, the window 2 is used.
Belt support plate 2 having 3, 23a, 23b and 23c
1, the flexible belt 3 is supported to support the windows 23, 23a, 23
b and 23c corresponding to the glass plate receiving devices 4, 4a, 4
Since b and 4c are arranged, the drooping of the belt 3 can be eliminated, the movement of the glass plate receiving devices 4, 4a, 4b and 4c can be performed without any hindrance, and the folding operation can be performed extremely quickly.

In the specific example, the two splitting devices 6 are used.
And 6a and the moving devices 7 and 7a form the glass plate breaking machine, but the present invention is not limited to this, and a glass plate receiving device 4 and the same number of pushing and breaking devices and moving devices may be provided. Good. On the contrary, the pushing device and the moving device may be one, and in this case, the moving device pushes and cuts in the rotation direction in the horizontal plane about the lifting device 9 and the radial direction in the horizontal plane about the lifting device 9. The device may be formed to move.

[0028]

As described above, according to the glass plate breaking machine of the present invention, the moving positions of the supporting surface of the glass plate receiving device and the cutter blades and push rods of the slitting device correspond to each other. The operation of the first and second moving devices can be controlled by the control device, and in forming the cutting line on the glass plate by the cutter blade of the slitting device, the movable supporting surface and the other supporting surface are flush with each other. As described above, since the movable support surface can be moved back and forth with respect to the lower surface of the glass plate by the advancing and retracting means, the relative positioning of the cutter blade and the glass plate receiving device is slightly shifted, and the cutter blade is moved to the movable support surface or other Even if it is arranged on any of the supporting surfaces, the glass plate can be supported from below by these, and as a result, the cutting line can be formed as desired. In other words, the relative positioning of the supporting surface of the glass plate receiving device with respect to the cutter blade does not require so much precision, and as a result of supporting the glass plate from a large area from below, the glass plate is not supported during the formation of the cutting line. Can be held flat. In addition, according to the present invention, in the splitting by the push rod of the splitting device, the moving support surface is moved relative to the lower surface of the glass plate by the advancing and retracting means so as to form a step between the movable support surface and another support surface. Since it can be moved forward and backward, the lower surface of the flexible endless belt on which the glass plate is placed is supported by the supporting surface having a step, and the endless belt can be easily pressed by the pressing rod against the glass plate. It can be deformed, and thus the glass plate can be reliably broken along the cutting line by the push rod.

[Brief description of drawings]

FIG. 1 is a front sectional view of a preferred embodiment of the present invention.

FIG. 2 is a plan view in which the endless belt in the specific example shown in FIG. 1 is partially broken.

FIG. 3 is a partially cutaway plan view of an endless belt and a belt support plate in the specific example shown in FIG.

4 is a partially detailed front view of the specific example of the splitting device shown in FIG. 1. FIG.

5 is a detailed view of the glass plate receiving device of the specific example shown in FIG. 1, showing a case where a disk is lowered. FIG.

FIG. 6 is a detailed view of the glass plate receiving device of the specific example shown in FIG. 1, showing a case where the disk is raised.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Glass plate breaking machine 2 Glass plate 3 Endless belt 4 Glass plate receiving device 5 First moving device 6 Pushing and breaking device 7 Second moving device 8 Traveling devices 201, 202 Top surface

Claims (2)

[Claims] 1. A flexible endless belt on which a glass plate is placed, a traveling device for traveling the endless belt , and a glass plate receiving device having a supporting surface for supporting the glass plate through the endless belt. A first moving device for moving the supporting surface of the glass plate receiving device in a plane parallel to the surface of the glass plate, and a splitting device having a cutter blade and a push rod arranged above the endless belt. device and, mosquitoes of the second moving device that moves in a plane parallel to the plane of the glass plate cutting blade and the push rod of the press-breaking device, the press-breaking device for the glass plate on the endless belt
Tsu that of the cut line formation and press-breaking due to other blade and the push rod
In each case, the supporting surface of the glass plate receiving device by the first and second moving devices and the cutter blade and push rod of the slitting device.
And a control device for controlling the operations of the first and second moving devices so as to correspond to the moving positions of the glass plate receiving device and the supporting surface of the glass plate receiving device. A glass plate receiving device that is free and has a movable support surface that supports a glass plate via an endless belt, and another support surface that supports a glass plate through an endless belt.
Is a cutting line on the glass plate by the cutter blade of the slitting device.
In forming, the movable support surface and the other support surface are flush with each other.
However, in the case of pushing with the push rod of the pushing device,
It is possible to form a step between the movable support surface and another support surface.
Advancing / retreating means for advancing / retreating the dynamic support surface with respect to the lower surface of the glass plate
Bend-breaking machine of the glass plate which is provided with a. 2. The advancing / retreating means comprises a cylinder device, the movable supporting surface is provided on the piston rod of the cylinder device, and the other supporting surface is arranged around the movable supporting surface. The glass sheet breaking machine described in 1.