JPH0640733A - Glass sheet cutter - Google Patents

Abstract

PURPOSE:To provide a glass sheet cutter capable of reducing backlash and capable of rapidly and precisely forming a cutting line. CONSTITUTION:This glass sheet cutter is provided with a shaft 6 for supporting a cutter block 4, a pneumatic cylinder 9 connected to the shaft 6 to press a cutter blade 8 fixed to the cutter block 4 on a glass sheet 7 placed on a glass sheet holder, an electric motor 11 with the output rotating shaft 10 connected to the shaft 6 to turn the cutter blade in the A direction and a device 12 for moving a base 3 in the X-Y directions with respect to the glass sheet 7 in the X-Y plane. The output rotating shaft 10 of the motor 11 and the cutter supporting shaft 6 are arranged on the Z axis.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass plate cutter device for forming a score line, that is, a score line in advance when a glass plate is broken.

[0002]

2. Description of the Related Art For example, in a window glass of an automobile, a main cutting line is formed on a base plate glass in accordance with the shape of the window glass, and after the main cutting line is formed, an auxiliary cutting line (end cutting line) is further formed. After that, the raw sheet glass is split along the main cut lines, and then the split end surface is subjected to grinding, polishing, etc. A conventional glass plate cutter device is provided with a pneumatic cylinder device and an electric motor that are arranged side by side. The pneumatic cylinder presses the cutter blade against the surface of the glass plate, and the electric motor causes the cutter blade to form a streak forming direction. It is rotated so that it points to.

[0003]

By the way, in the above-mentioned conventional glass plate cutter device, the pneumatic cylinder device for forming the streak and the electric motor are arranged side by side, and the rotation of the motor is carried out via a gear, a timing belt or the like. As a result of being transmitted to the cutter blade, there is a large amount of backlash due to gears, timing belts, etc., and therefore it is difficult to form the cutting line accurately and quickly.

The present invention has been made in view of the above points, and an object of the present invention is to provide a cutter device for a glass plate capable of reducing backlash and accurately and quickly forming a score line. Especially.

[0005]

According to the present invention, the above object is achieved by a base placed on a glass plate support, a cutter support shaft for supporting a cutter block, and a base attached to the base. In order to press the cutter blade attached to the cutter block against the glass plate placed on the plate support base, in order to rotate the cutter blade around the Z axis and the pneumatic cylinder device connected to the cutter support shaft, The output rotation shaft is connected to the electric motor connected to the cutter support shaft and to the base, and the base is relatively moved in the XY plane with respect to the glass plate placed on the glass plate support. This is achieved by a glass plate cutter device in which the output rotation shaft of the electric motor and the cutter support shaft are coaxially arranged.

In one example of the present invention, the output rotary shaft of the electric motor is connected to the cutter support shaft via a spline mechanism, and the pneumatic cylinder device is provided with a hollow piston rod, and the cutter support shaft is It is arranged so as to penetrate through the hollow portion of the hollow piston rod, and the cutter support shaft and the hollow piston rod are rotatably connected to each other.
In another example of the present invention, the cylinder of the pneumatic cylinder device is rotatably supported on the base, and the cutter support shaft is connected to the piston of the pneumatic cylinder device.

[0007]

In the glass plate cutter device of the present invention, when the pneumatic cylinder device is operated, the cutter block supported by the cutter support shaft is moved toward the glass plate support base,
As a result, the cutter blade of the cutter block is pneumatically pressed against the glass plate placed on the glass plate support. When the XY moving device is operated in this pressed state, the base is moved relative to the glass plate on the glass plate mounted on the glass plate support in the XY plane, and this movement is performed. Together, the cutter blade forms a streak on the glass plate. When the cutting line direction to be formed changes, the electric motor is operated to rotate the cutter support shaft about the Z axis by a predetermined angle, and the cutting edge of the cutter blade is directed in the cutting line direction.

The present invention will now be described in more detail based on the preferred embodiments shown in the drawings. The present invention is not limited to these specific examples.

[0009]

SPECIFIC EXAMPLE In FIGS. 1 to 4, a glass plate cutter device 1 according to the present embodiment includes a base 3 placed on a glass plate support base 2,
Cutter support shaft 6 for supporting the cutter block 4 and the base 3
A pneumatic cylinder device 9 connected to the cutter support shaft 6 so as to press the cutter blade 8 attached to the cutter block 4 against the glass plate 7 mounted on the glass plate support base 2, In order to rotate the cutter blade 8 around the Z axis, that is, in the A direction, the output rotary shaft 10
Is connected to the electric motor 11 connected to the cutter support shaft 6 and the base 3, and the base 3 is opposed to the glass plate 7 mounted on the glass plate support 2 in the XY plane. XY moving device 12 that moves the output shaft 10 of the electric motor 11 and the cutter support shaft 6 are coaxially arranged, that is, on the Z axis.

A hollow rectangular parallelepiped glass plate support 2 is supported by a frame 21, and a large number of air ejection holes 23 are formed in an upper plate portion 22 on which the glass plate 7 is placed. A hole 25 is formed in the center of the lower plate portion 24, a duct connector 26 is attached to surround the hole 25, and one end of a duct 27 is screwed to the connector 26. The other end of the duct 27 is connected to the outlet of a blower 29 attached to the lower frame 28. When the blower 29 is operated, the hollow portion 30 of the glass plate support 2 is passed through the duct 27.
The air sent into the upper plate portion 22 of the glass plate 7 after being blown out from a large number of air ejection holes 23 raises the glass plate 7 placed on the upper plate portion 22 to form a score line. To be easily excluded.

The pneumatic cylinder device 9 comprises a cylinder 33 attached to the base 3 via bolts 32, a piston 34 arranged in the cylinder 33, and a hollow piston rod 35 fixed to the piston 34. The cylinder 33 is provided with connectors 38 and 39 for connecting the hoses 36 and 37 for supplying and discharging high-pressure air, and the piston rod 35 slides the cylinder 33 in the Z-axis direction, that is, in the vertical direction. It is pierced through freely. When high pressure air is supplied to and discharged from the cylinder 33 via the hoses 36 and 37, and the piston 34 is moved up and down, the piston rod 35 is also moved up and down.

The electric motor 11 is attached to the base 3 via bolts 51, and its output rotary shaft 10 is connected to the cutter support shaft 6 via a spline mechanism 52. The spline mechanism 52 has a plurality of vertical grooves 53 formed on the inner surface thereof, and the output rotary shaft 10 is inserted thereinto,
A cylindrical body 55 having one end fixed to the output rotary shaft 10 by a screw 54, a vertical groove 56 formed on the outer surface of the upper portion of the cutter support shaft 6 corresponding to the vertical groove 53, and the vertical grooves 53 and 56 facing each other.
And a plurality of steel balls 57 arranged between them. The spline mechanism 52 transmits the rotation of the output rotary shaft 10 in the A direction to the cutter support shaft 6 and allows the cutter support shaft 6 itself to move up and down.

The cutter support shaft 6 is arranged so as to penetrate through the hollow portion of the piston rod 35, and a bearing 61 is inserted inside the lower portion of the piston rod 35. The cutter support shaft 6 is attached to the piston rod 35. It is rotatably supported in the A direction via a bearing 61. That is, the cutter support shaft 6 and the piston rod 35 are rotatably connected to each other via the bearing 61. The outer ring of the bearing 61 is the piston rod 3
5, the inner rings thereof are fixed to the cutter support shaft 6, respectively, so that when the piston rod 35 is moved up and down, the cutter support shaft 6 is also moved up and down.

The XY moving device 12 comprises an X direction moving device 71 for moving the base 3 in the X direction and a Y direction moving device 72 for moving the base 3 in the Y direction. The X-direction moving device 71 is connected to an electric motor 75, which is a servomotor attached to the frame 21, and an output rotation shaft of the electric motor 75 via a pulley 76, a belt 77, and a pulley 78, and is connected to the frame 21. Bearing 79, 80
And a rotary shaft 82 rotatably supported via 81,
The rotation shaft 82 is provided via the gear mechanisms 83 and 84 for changing the direction.
Bearings 85 and 86 and 8 respectively.
Rotatably through 7 and 88 lateral frames 89 and 90
And the screw shafts 91 and 92 supported by the screw shafts 91 and 9
It has a movable frame 95 in which nut members 93 and 94 screwed to 2 are fixed to the lower surfaces of both ends. The movable frame 95 is arranged bridging the horizontal frames 89 and 90, and sliders 96 and 97 are attached to the lower surfaces of both ends of the movable frame 95. The sliders 96 and 97 are attached to the upper surfaces of the horizontal frames 89 and 90. It is fitted to the attached guide rails 98 and 99 so as to be movable in the X direction.
The Y-direction moving device 72 includes an electric motor 102 formed of a servo motor attached to the support base 101, and a pinion 103 attached to an output rotary shaft of the electric motor 102.
And the pinion 103 meshes with each other, and the movable frame 9
5 and a rack 104 attached to the base 5, and the base 3 is attached to the support base 101 via bolts 105. A guide rail 106 extending in the Y direction is attached to the movable frame 95 with bolts 107, and a slider 108 attached to the support base 101 is fitted to the guide rail 106 via a bearing 109 so as to be movable in the Y direction. ing.

The electric motors 11, 75 and 102 are connected to a numerical control device 111, and a control valve mechanism (not shown) for controlling the supply and discharge of high pressure air to the pneumatic cylinder device 9 and a blower 29 are also numerical values. The numerical control device 111 is connected to the control device 111, and controls the operation of the electric motors 11, 75 and 102, the control valve mechanism and the blower 29 based on a pre-stored control program, so that the glass plate 7 can be operated as desired. Perform streak formation.

The glass plate cutter device 1 thus formed operates as follows. When the electric motor 75 is operated under the control of the numerical controller 111, the pulley 76, the belt 77, the pulley 78, the rotating shaft 82, and the gear mechanism 83,
The screw shafts 91 and 92 are rotated via 84, whereby the movable frame 95 is guided by the guide rails 98 and 99 and moved in the X direction. Similarly, when the electric motor 102 is operated under the control of the numerical controller 111, the support base 101 is guided by the guide rail 106 and moved in the Y direction by the meshing of the rotating pinion 103 and the rack 104. Movement of movable frame 95 in X direction and support base 101
The movement of the base 3 in the Y direction causes the base 3 to move on the glass plate 7 in the XY direction.
The cutter blade 8 is moved in a plane, and thus the cutter blade 8 is moved along the planned line for forming a score 120. When the cutter blade 8 is moved, the pneumatic cylinder device 9 is also operated under the control of the numerical controller 111, and the piston lot 35 is lowered so that the cutter blade 8 is pressed against the glass plate 7. By such aeroelastic pressing of the cutter blade 8 against the glass plate 7, a cut line along the planned cut line 120 is formed on the glass plate 7. Further, when the electric motor 11 is operated under the control of the numerical control device 111 to rotate the tubular body 55 in the direction A during the formation of the streak, the cutter support shaft 6
Is also rotated in the A direction, so that the blade edge of the cutter blade 8 is directed in the cutting line forming direction when forming the cutting line. As described above, a cut line is formed on the glass plate 7 along the planned cut line 120. Glass plate 7
When the formation of the streak is completed, the blower 29 is operated and the air is blown into the hollow portion 30. After that, the glass plate 7 on which the cut lines are formed is removed from the glass plate support base 2, the glass plate 7 on which the new cut lines are to be formed is placed on the glass plate support base 2, and the above operation is repeated. The glass plate 7 on which the score lines have been formed is then subjected to a folding step.

In the glass plate cutter device 1, the output rotation 10 of the electric motor 11 and the cutter support shaft 6 are arranged coaxially, and the output of the electric motor 11 is directly output to the cutter support shaft 6 via the spline mechanism 52. Since the rotary shaft 10 is connected, backlash and the like can be extremely reduced, and the blade edge of the cutter blade 8 can be more accurately oriented in the cutting line forming direction, and thus the cutting line forming line 120 can be accurately set. Corresponding cut lines can be formed, and the risk of chipping or the like of the glass plate 7 can be reduced.
In addition, in the glass plate cutter device 1 of this example, the periphery of the cutter blade 8 is extremely compact, and unnecessary force is not applied to the cutter support shaft 6 from the lateral direction. As a result of being able to press the surface accurately and pneumatically, this also makes it possible to form a score line in accordance with the scheduled line for forming the cut line 120 exactly, and there is a possibility that the glass plate 7 may be chipped or the like. Can be reduced.

In the above example, the output rotary shaft 10 of the electric motor 11 is connected to the cutter support shaft 6 via the spline mechanism 52, and the pneumatic cylinder device 9 is formed with the hollow piston rod 35. 6 is arranged so as to penetrate through the hollow portion of the hollow piston rod 35, and the cutter support shaft 6 and the hollow piston rod 35 are rotatably connected to each other, but the present invention is not limited to this, and for example, FIG. As shown in FIG. 3, the cylinder 151 of the pneumatic cylinder device 150 is rotatably supported on the base 3, and the cutter support shaft 15
6 may be connected to the piston 157 of the pneumatic cylinder device 150. That is, in FIG. 5, the cylinder 151 of the pneumatic cylinder device 150 of this example that presses the cutter blade 8 against the glass plate 7 includes a cylinder body 152 and a connecting shaft 153 integrally fixed to the cylinder body 152. The connecting shaft 153 is rotatably supported on the base 3 via the bearing 154 in the A direction. Thus, the cylinder 151 of the pneumatic cylinder device 150 of this example is rotatably supported on the base 3 and the cutter. The cutter support shaft 156 of the present example which supports the block 4 is directly attached and connected to the piston 157 of the pneumatic cylinder device 150 by screws 158 or the like. In this example, the connecting shaft 153 is the screw 15
9 is connected to the output rotary shaft 10 of the electric motor 11, and the cutter block 4 is fixedly attached to the lower end of the cutter support shaft 156 with screws 160 and the like. Even with a glass plate cutter device formed as shown in FIG.
Similar to the above-described example, the cutter blade 8 is elastically pressed against the glass plate 7 by the lowering of the cutter support shaft 156 by the supply and discharge of high-pressure air to the pneumatic cylinder device 150, and the pneumatic cylinder is operated by the operation of the electric motor 11. By the rotation of the cylinder 151 of the device 150 in the A direction, the cutter support shaft 156 is also rotated in the A direction, and the blade edge of the cutter blade 8 is directed in the score forming direction. Also in this example, backlash and the like can be extremely reduced, and the blade edge of the cutter blade 8 can be more accurately oriented in the cutting line forming direction, and therefore, the cutting line can be formed along the planned cutting line. In addition, it is possible to reduce the risk that the glass plate 7 will be chipped or the like. Furthermore, the area around the cutter blade 8 becomes extremely compact,
Moreover, since unnecessary force from the lateral direction is not applied to the cutter support shaft 156, the cutter blade 8 can be accurately and pneumatically pressed against the surface of the glass plate 7. As a result, it is also planned to form a streak. It is possible to form a score line along the line 120 and reduce the possibility that the glass plate 7 is chipped or the like.

Although the main cutting lines have been described above, it goes without saying that the auxiliary cutting lines may be formed by the above-described glass plate cutter device.

[0020]

As described above, according to the present invention, the cutter support shaft includes the pneumatic cylinder device for pressing the cutter blade against the glass plate and the output rotary shaft of the electric motor for rotating the cutter blade around the Z axis. Since the output rotating shaft of the electric motor and the cutter supporting shaft are coaxially arranged, the backlash can be reduced as desired and the notches can be formed accurately and quickly.

[Brief description of drawings]

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

FIG. 2 is a partially cutaway side view of the specific example shown in FIG.

FIG. 3 is a partially cutaway front view of the specific example shown in FIG.

FIG. 4 is a partially detailed cross-sectional view of the specific example shown in FIG.

FIG. 5 is a partial detailed cross-sectional view of another preferred embodiment of the present invention.

[Explanation of symbols]

 1 Cutter device for glass plate 2 Glass plate support base 3 Cutter block 4 Cutter block 6 Cutter support shaft 7 Glass plate 8 Cutter blade 9 Pneumatic cylinder device 10 Output rotary shaft 11 Electric motor 12 XY moving device

Claims (3)

[Claims] 1. A base placed on a glass plate support, a cutter support shaft for supporting a cutter block, and a glass plate mounted on the base and mounted on the glass plate support, and a cutter. A pneumatic cylinder device connected to the cutter support shaft to press the cutter blade attached to the block, and an electric motor having an output rotation shaft connected to the cutter support shaft to rotate the cutter blade around the Z axis. And XY that is connected to the base and moves the base relatively in the XY plane with respect to the glass plate placed on the glass plate support.
A cutter device for a glass plate, which is provided with a moving device and in which the output rotation shaft of the electric motor and the cutter support shaft are coaxially arranged. 2. An output rotary shaft of an electric motor is connected to a cutter support shaft via a spline mechanism, and a pneumatic cylinder device is provided with a hollow piston rod, and the cutter support shaft is a hollow of the hollow piston rod. The glass plate cutter device according to claim 1, wherein the cutter support shaft and the hollow piston rod are connected to each other so as to be rotatable relative to each other. 3. The glass plate cutter device according to claim 1, wherein the cylinder of the pneumatic cylinder device is rotatably supported on the base, and the cutter support shaft is connected to the piston of the pneumatic cylinder device.