JP2965998B2 - Glass cutting machine - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass cutting machine, and more particularly to a glass for cutting a glass plate into an arbitrary shape by moving a cutter in an XY direction by an XY moving device. Related to cutting machine.

[Conventional technology]

Conventionally, when cutting a glass plate into a special shape such as a trapezoidal shape, a circular shape, or a triangular shape, an XY moving device is used. That is, the glass plate to be cut is placed and positioned on the table of the XY moving device, the cutter shaft is turned in accordance with a desired cutting shape, and the glass plate is held by the cutter supported at the lower end of the shaft. Disconnect. At the time of cutting, cutter oil (kerosene) is supplied from outside to the cut groove by spraying in order to protect the cut groove portion of the glass plate from air oxidation.

[Problems to be solved by the invention]

However, the conventional glass cutting machine has a drawback that the center of the cutter wheel and the center of the cutter holder holding the cutter wheel coincide with each other, so that the cutter wheel does not quickly follow the moving direction of the cutter holder.

Also, since the cutter oil is supplied in a spraying manner from the outside of the cutter, the cutter oil scatters also on the surface of the glass plate other than the cutting groove portion, and a large amount of cutter oil is required, and the cutter oil scatters on the glass plate after cutting is completed. There is a problem that the cutter oil must be wiped off.

The present invention has been made in view of such circumstances, and improves the followability of the cutter wheel to keep the cut surface of the glass plate sharp, and furthermore, a glass cutting machine in which cutter oil does not scatter on the surface of the glass plate. The purpose is to provide.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a table on which a glass plate is placed, an XY drive mechanism provided on the table and capable of driving a carrier in XY directions, and a cutting unit case provided on the carrier. A supporting cylinder fixed to the cutting unit case, a rotating member rotatably supported by the supporting cylinder, an oil supply pipe connected to the supporting cylinder, and a first oil passage formed in the rotating member. A rotary joint, and rotatably supported at the lower end of the rotating member,
A cutter holder having a second oil passage formed to be connected to the first oil passage of the rotating member and having an oil supply port opened downward; and a cutter holder rotatably supported by the cutter holder and arranged below the oil supply port of the cutter holder. A cutter wheel disposed, wherein a rotation axis of the cutter wheel is perpendicular to the rotation axis of the rotation member at a predetermined distance from the rotation axis of the cutter holder and perpendicular to the rotation member. And a cutter wheel provided.

[Action]

According to the present invention, since the rotation axis of the cutter wheel is provided at a position offset from the rotation axis of the cutter holder, the followability of the cutter wheel is improved by a so-called caster effect. On the other hand, the cutter wheel rotates and controls the direction of rotation of the rotating member, so the rotation axis of the cutter wheel is provided orthogonal to the rotation axis of the rotating member, so that the rotation angle of the rotating member can be accurately determined without considering offset. Can be controlled.

〔Example〕

Hereinafter, preferred embodiments of a glass cutting machine according to the present invention will be described in detail with reference to the accompanying drawings.

The glass cutting machine according to the present invention has an X-
The XY moving device 2 is provided in the Y moving device 2 and has a Y-axis member 4 that can move in the XX direction. A carrier 6 is supported on the Y-axis member 4 so as to be movable in the Y-Y direction, and a cutting unit 10 is attached to the carrier 6. Therefore, the cutting unit 10 can move in the XY directions together with the carrier 6. The glass plate 70 is positioned and mounted on the table 2A of the XY moving device 2, and the glass plate 70 is cut by moving the cutting unit 10 as described later.

As shown in FIG. 2, a substrate 14 is provided in the case 12 of the cutting unit 10 in a lateral direction, and a support cylinder 16 is erected on the substrate 14 via bolts 18, 18,. A rotary cylinder 22 is rotatably supported inside the support cylinder 16 via bearings 20, 20, and a sleeve 24 is provided between the support cylinder 16 and the rotary cylinder 22. A pulley 26 is attached to the lower end of the rotary cylinder 22 via bolts 29, 29. Pulley 26,
An endless belt 34 extends from the pulley 32 fixed to the drive shaft 30 of the motor 28. This motor 28 is mounted on the board 14
Are mounted via bolts 36, 36 ... In FIG. 1, reference numerals 28A and 28B denote electric cables for driving the motor.

A shaft 40 is disposed inside 22A of the rotating cylinder 22. A lower inner peripheral surface of the rotating cylinder 22 and a lower outer peripheral surface of the shaft 40 are engaged with a spline 42, and the shaft 40 rotates together with the rotating cylinder 22. And can move up and down with respect to the rotary cylinder 22. The shaft 40 is urged upward by a coil spring 54.

A bellofram 44 is provided above the shaft 40, and a cap 48 is provided on the upper end of the rotary cylinder 22 via bolts 46, 46 so as to cover the bellowram 44. A concave portion 48A is formed in the cap 48, and a sealed chamber 50 is formed by the belofram 44 and the concave portion 48A.

The cap 48 is provided with a pipe 52 communicating with an air supply source (not shown). The pipe 52 communicates with the sealing chamber 50 via a hole 48B formed in the cap 48. Therefore, when air is supplied from the pipe 52 to the sealed chamber 50, the bellofram moves downward to lower the shaft 40,
When the supply of air is stopped, the shaft 40 is raised by the urging force of the spring.

The cutter holder 56 is a bearing at the lower end of the shaft 40.
It is rotatably supported via 58. As shown in detail in FIG. 3, a cutter holder 56 is provided at the lower end of the cutter holder 56.
A cutter wheel 60 is rotatably supported at a position offset by a length L from the turning center axis 56. The rotating shaft 62 of the cutter 60 is provided orthogonal to the turning shaft 40A of the shaft 40. Accordingly, when the cutting unit 10 moves in the direction of arrow A in FIG. 2, the cutter holder 56 automatically rotates, and the state as shown in FIG. 2 is obtained.

3 and 4, a lower end portion of the cutter holder 56 is formed with a concave portion 56A, in which a cutter wheel 60 is rotatably supported via a shaft 62. A hole 56B for supplying cutter oil is formed in the cutter holder 56, and the hole 56B is a hole 62 formed in the shaft 40, an oil supply pipe 64, the pulley 26 shown in FIG.
24, which communicates with a communication hole 66 formed in the support cylinder 16. The communication hole 66 is connected to a cutter oil supply source (not shown) via an oil supply pipe 68. Therefore, the cutter oil from the cutter oil supply source drops on the cutter wheel 60 from the hole 56B. The communication holes 66 between the rotary cylinder 22 and the sleeve 24 and between the sleeve 24 and the support cylinder 16 are formed in a rotary joint shape.

The operation of the glass cutting machine according to the present invention configured as described above will be described.

First, the glass plate 70 to be cut is positioned and mounted on the table 2A of the XY moving device 2, and the control unit (not shown) inputs the amount of movement of the cutter wheel 60 in the XY direction and the turning angle. After the input, the starter switch (not shown) is operated to move the carrier 6 in the XY directions, and the cutting unit 10 is moved. Further, the motor 28 is driven and its rotational force is
The shaft 40 turns via the pulley 32, the belt 34, the pulley 26, and the rotary cylinder 22. When the shaft 40 is turned, the cutter wheel 60 is turned around the axis of the shaft 40 via the cutter holder 56. Thus, the cutter wheel 60 is located at the cutting start position.

Next, air is supplied from the pipe 52 to the sealed chamber 50 to push down the bellofram 44 downward. This is Berofram 44
Presses the upper end of the shaft 40 downward to
60 is pressed against the glass plate 70.

Next, the control unit (not shown) outputs the amount of movement in the XY direction and the turning angle, and moves the cutter wheel 60 to cut the glass plate 70 into a desired shape. Here, as shown in FIG. 2 and FIG. 3, since the turning axis 40A of the shaft 40 and the turning axis 60A of the cutter wheel 60 are orthogonal to each other, the cutter wheel 60 is centered on the turning axis 40A of the shaft 40. Turn. Therefore, the rotation angle of the cutter wheel 60 can be easily controlled. At the time of cutting, cutter oil is dropped from the hole 56B and dropped on the upper end of the cutter wheel 60. Since the dropped cutter oil flows down along the cutter wheel 60, it fills the groove 70A of the glass plate 70 cut by the cutter wheel 60, and the cutter oil does not cover the surface of the glass plate 70.

〔The invention's effect〕

According to the glass cutting machine of the present invention, since the rotation axis of the cutter wheel is provided at a position offset from the rotation axis of the cutter holder, the followability of the cutter wheel is improved by the caster effect. In addition, since the rotation axis of the cutter wheel is provided orthogonal to the rotation axis of the rotation member and the cutter wheel rotates about the rotation axis of the rotation member, it is possible to control the rotation of the rotation member without considering the offset. I can do it. Therefore,
Since the cutter wheel can be easily orientated in the moving direction of the cutter wheel, the cut surface of the glass plate can be kept sharp.

Also, since the cutter oil can be supplied into the cutting groove via the cutter wheel by dropping the cutting oil from above the cutting wheel, the cutter oil can be prevented from being scattered to parts other than the cutting groove. The use of cutter oil can be minimized.

[Brief description of the drawings]

1 is a schematic plan view of a glass cutting machine according to the present invention, FIG. 2 is a cross-sectional view of a cutting unit used in the glass cutting machine according to the present invention, FIG. 3 is an enlarged view of a main part of FIG. FIG. 4 is a sectional view taken along line AA of FIG. 2 ... XY moving device, 6 ... carrier, 10 ... cutting unit, 40 ... shaft, 56 ... cutter holder, 56B, 6
2, 66 ... hole, 60 ... cutter wheel, 64, 68 ... supply pipe.

Claims (2)

(57) [Claims] 1. A table on which a glass plate is mounted, an XY drive mechanism provided on the table and capable of driving a carrier in XY directions, a cutting unit case provided on the carrier, and a cutting unit case A fixed support cylinder, a rotary member rotatably supported by the support cylinder, a rotary joint connecting an oil supply pipe connected to the support cylinder and a first oil passage formed in the rotary member, A cutter holder having a second oil passage formed at the lower end of the member so as to be rotatable and connected to the first oil passage of the rotating member and having an oil supply port opened downward; A cutter wheel freely supported and disposed below an oil supply port of the cutter holder, wherein a rotation axis of the cutter wheel is spaced apart from a rotation axis of the cutter holder by a predetermined distance. And a cutter wheel provided in a position perpendicular to each other and on the axis of the rotating member so as to be orthogonal to the axis. 2. The rotating member has a double structure of an outer shaft and an inner shaft. The inner shaft is spline-coupled to the outer shaft and the cutter holder is rotatably supported at a lower end thereof. 2. The glass cutting machine according to claim 1, wherein the inner shaft moves down to press the cutter wheel into contact with the glass plate and, when cutting is not performed, the inner shaft moves up to separate the cutter wheel from the glass plate.