JPH01261238A - Cutting device for plate to be processed - Google Patents

Abstract

PURPOSE:To carry out cutting processing of a plate to be processed in good productivity using a crack as a cutting line, by carrying out scribing to the cutting part of the plate to be processed and absorbing both side sites of generating crack and causing deformation to the each. CONSTITUTION:A glass substrate 21 is put on a table 22 so that a cutting part coincides with supporting face of the table 22 and vacuum chuck is carried out to the extent causing no movement. Then a screw shaft 24 is rotated and scribe wheel 25 is set to the cutting position and moved along the cutting part while pressing against the glass substrate 21 to cause crack in the cutting part. Then the glass substrate 21 is cut using the crack as the cutting line by controlling pressures P1 and P2 of vacuum chuck so that deformation of the glass substrate 21 becomes equal at both sides of crack and the glass substrate 21 is subjected to curved deformation capable of carrying out cutting.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a workpiece cutting device for cutting workpieces such as glass substrates.

BACKGROUND OF THE INVENTION In recent years, sheet glass has been used as a material for various substrates, and as the amount of sheet glass used has increased, processing equipment with high productivity has been required.

The conventional cutting method will be explained below with reference to FIGS. 2 and 3. In FIG. 2, 1 is a glass substrate, 2 is a pin, and 3 is a scribe wheel that generates cracks in the glass substrate 1 and rotates around the bottle 2. A housing 4 holds the bottle 2. In Figure 3, 12
1 is a table, 13 is an elastic body, and 14 is a cutting jig for cutting the glass substrate 1 along the cracks.

The cutting method configured as above will be explained. First, when the housing 4 is moved in a direction perpendicular to the plane of the paper while applying a predetermined load in the direction of the arrow, the wheel 3 rotates around the pin 2 and generates a slight rack on the glass substrate 1. I'll let you do it. Next, as shown in Fig. 3, place the elastic body 13 on the table 12, place the glass substrate 1 on top of it with the surface on which a slight rack has occurred facing down, and use a cutting jig to strike the cracks. 14 in the direction of arrow B. As a result, the glass substrate 1 receives a force in the direction of arrow C and breaks.

Problems to be Solved by the Invention However, the above configuration requires separate machines for scribing and cutting, and has the problem of poor productivity such as transfer.

In view of the above-mentioned problems, the present invention provides a cutting device that enables scribing and cutting with one machine and greatly improves productivity.

Means for Solving the Problems In order to solve the above-mentioned problems, the cutting device of the present invention includes a crack forming means for forming a crack in the cut portion of the work plate, supporting the outer periphery of the work plate and the cut portion, and The present invention is characterized by comprising a table that adsorbs each split piece cut along the cut portion and causes deformation of the cut portion.

According to the above-described structure, the present invention scribes the cut portion of the workpiece plate, and then adsorbs both sides of the crack generated by the scribing to cause deformation, thereby converting the crack into a cut line. The site can be divided into split pieces.

EXAMPLE Hereinafter, a cutting device according to an example of the present invention will be explained with reference to FIG. In FIG. 1, 21 is a glass substrate;
22 is a table on which the glass substrate 21 is placed and vacuum-suctions the glass substrate 21; 26 is a scribe wheel; 29 is a housing that rotatably holds the scribe wheel; and 24 is a table for moving the housing 29 in the left-right direction in the figure. a screw shaft; 23 is a motor that rotates the screw shaft 24;
28 is a column to which the motor 23 is attached; 27 is a screw shaft that moves the column 28 in the front-back direction in the figure; and 28 is a motor that rotates the screw shaft 27.

The table 22 is recessed to correspond to a portion of the glass substrate 21 divided by the cut portion, and is configured to curve and deform the portion that is vacuum-adsorbed. Note that the portion of the table 22 corresponding to the outer periphery of the glass substrate 21 and the cutting portion is formed into a flat support surface.

The operation of the cutting device configured as described above will be described below with reference to FIG.

The glass substrate 21 is placed on the table 22 so that the cutting part and the support surface of the table coincide with each other, and the glass substrate 21 is chucked at a degree of vacuum such that the glass substrate 21 does not move during scribing. The screw shaft 24 is rotated by the motor 23 to align the scribe wheel 26 to the cutting position, and the glass substrate 2 is cut with an arbitrary pressure.
Do not press it against 1, but move it along the cut part. This movement transmits the rotation of the motor 26 to the screw shaft 27, and the column 28
This is done by moving the . By performing this processing on each cut portion, cracks are generated in the cut portion.

Next, the vacuum chuck pressure P1. The glass substrate 21 can be cut by adjusting P2. Although a scribe wheel is used in the embodiment, a single point glass cutter may also be used.

Effects of the Invention As described above, according to the present invention, a workpiece plate can be cut with high productivity using one machine.

[Brief explanation of the drawing]

Fig. 1 is a front view of an embodiment of the present invention, Figs. 2 and 3 show a conventional example, Fig. 2 is a front view of a main part showing a scribing process, and Fig. 3 is a front view of a main part showing a cutting process. FIG. 21・River...Glass substrate, 22...Table,
26...Scribe wheel.

Claims (1)

[Claims] A crack forming means for forming a crack in the cut part of the work plate, and a crack forming means that supports the outer periphery and the cut part of the work plate and adsorbs each split piece cut along the cut part to cause deformation on these cut sides. A cutting device for a workpiece plate, characterized in that it is equipped with a table for cutting.