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Cutting roller for fragile material substrate and line drawer therewith

A technology of brittle material substrates and scribers, which is applied in the direction of manufacturing tools, glass manufacturing equipment, metal processing, etc., can solve the problems of residual stress, tool tip wear, and inability to obtain deep cutting marks, etc., and reduce the occurrence of horizontal cracks. The effect of horizontal cracks

Inactive Publication Date: 2008-06-04
MITSUBOSHI DIAMOND IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, if the above-mentioned glass cutting wheel is used, deep cut marks (vertical cracks) cannot be obtained, and it is easy to slip on the glass plate during scribing, and the tip of the knife is prone to abrasion, resulting in problems in the quality of the glass after processing. Residual stress will be generated along the scored line, and after the split, redundant notches (horizontal cracks) are likely to be generated on the glass section

Method used

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  • Cutting roller for fragile material substrate and line drawer therewith
  • Cutting roller for fragile material substrate and line drawer therewith
  • Cutting roller for fragile material substrate and line drawer therewith

Examples

Experimental program
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Embodiment Construction

[0022] Figure 2 shows a first embodiment of the invention. The ridge line portion 13 of the V-shaped left and right blades 12 of the tip of the knife, that is, the glass cutting cutter wheel 11, is formed into a regular 60-angle shape (results viewed from the side; simplified to a regular 18-angle shape in the figure for easy understanding), and by including all Cut off the blade face on the plane of each side of the regular 60-angle, and form the described V-shaped blade 12 with a knife edge angle 0 of 125°. That is to say, at any place on the blade 12 containing the blade tip 13, the side section at this place becomes a regular 60-angle, and the side section on the line Q-Q' in Fig. 2 is shown in the right figure.

[0023] In addition, as can be understood from the production examples described later, the blade tip 13 is actually continuously formed by continuously forming the blade 12 .

[0024] The table below represents the dimensions of the glass cutter wheel 11 of this...

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Abstract

A cutter wheel for brittle material substrate. The glass cutter wheel having knife blades of a V shape along the circumferential part of a disk-shaped wheel is so formed that blade edges, for example, the ridgeline parts of the knife blades have a polygonal shape when viewed from sideways in forming the knife blades of the V shape. A scriber has a relatively moving unit moving in X-direction and Y-direction, campared to the glass cutter head arranged on the platform. The glass cutter head is provided with a cutter wheel for brittle material substrate. This inventive cutter wheel and scriber overcome effectively the problem such that a large quantity of horizontal cracks to degrade quality occur with the conventional glass cutter wheel.

Description

technical field [0001] The invention relates to a cutting wheel for a brittle material substrate and a scriber using the same, in particular to a glass cutting wheel and a scriber using the same. Background technique [0002] In the description of the present invention, a glass cutter wheel whose processing object is a glass plate will be described as an example. In addition, the cutter wheel can be used for cutting brittle materials such as semiconductor wafers or ceramics. [0003] The glass cutting cutter wheel is a disc made of superhard alloy or diamond. The method is installed on the head of the automatic glass scriber. [0004] However, if the above-mentioned glass cutting wheel is used, deep cut marks (vertical cracks) cannot be obtained, and it is easy to slip on the glass plate during scribing, and the tip of the knife is prone to abrasion, resulting in problems in the quality of the glass after processing. Residual stress will be generated along the scoring lin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03B33/10B26D1/00
CPCC03B33/107Y10T83/0385Y10T83/9403C03B33/10
Inventor 前川和哉若山治雄
Owner MITSUBOSHI DIAMOND IND CO LTD
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