Abrading – Precision device or process - or with condition responsive... – Computer controlled
Patent
1994-01-21
1997-04-01
Little, Willis
Abrading
Precision device or process - or with condition responsive...
Computer controlled
451 44, 451 70, 451257, 225 2, 225 965, B24B 100
Patent
active
056160640
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to devices for working a plate-like material, for example, of glass, and more particularly to a plate-like glass material working device for working a plate-like glass material wherein a plate-like glass material is broken off to provide a glass article having a predetermined shape.
BACKGROUND ART
Conventionally, in order to obtain a plate of glass having a predetermined shape from a plate-like glass material, the glass material is placed on a main cutting line forming unit to form a main cutting line on the plate-like glass material. The resulting plate-like glass material is then placed on an end cutting line forming and breaking-off unit to form an end cutting line thereon. The resulting glass material is then pressed at predetermined places thereof and broken off along the main cutting line thereof. In order to use the plate-like glass material in a waste-free manner conventionally, a plate-like glass material corresponding to the shape of a target plate of glass as a final article is selected. The main cutting line forming unit and the end cutting line and breaking off unit are manually adjusted and set in position relative to the selected glass material.
This operation is troublesome and very low in efficiency. For example, each time a plate-like glass material having a different shape is used, the main cutting line forming position, an auxiliary cutting line forming position, and pressing position are required to be reset.
Such problem occurs not only in working a plate-like glass material, but also in working a general plate-like material.
The present invention is made in view of such problem. It is an object of the present invention to provide a plate-like glass material working device capable of easily setting a main cutting line forming position, auxiliary cutting forming position and pressing position depending on the shape of the plate-like glass material, and rapidly working the plate-like glass material automatically.
DISCLOSURE OF THE INVENTION
According to the present invention, the above object is achieved by a plate-like glass material working device including: breaking-off means, input means for inputting various breaking-off data items and commands to the device; storage means from which data on the shape of a target plate of glass stored beforehand therein is read out in accordance with a command from the input means; display means for displaying thereon the shape of the target plate of glass on the basis of the shape data read out from the storage means and displaying the shape of a plate-like glass material to be worked, an end cutting line forming position and a pressing position in accordance with breaking-off data and a command from the input means; and control means for controlling the operation of the breaking-off means in correspondence to the shape of the target plate of glass, the shape of the plate-like glass material, the end cutting line forming position and the pressing position displayed on the display means.
In the present invention, one of the breaking-off means includes: main cutting line forming means for forming a main cutting line on a plate-like glass material, end cutting line forming means for forming an end cutting line on the plate-like glass material on which the main cutting line has been formed by the main cutting line forming means; breaking-off means for breaking off the plate-like glass material on which the end cutting line has been formed by the end cutting line forming means to break off the plate-like glass material along the main cutting line; and grinding means for grinding the periphery of the plate-like glass material broken-off along the main cutting line by the breaking-off means.
The breaking-off means may further include conveying means for conveying the plate-like glass material with the main cutting line formed thereon by the main cutting line forming means to the end cutting line forming means and said breaking-off means to form an end cutting line on the plate-like glass material with
REFERENCES:
patent: 3581443 (1971-06-01), Mayers et al.
patent: 4698088 (1987-10-01), Bando
patent: 5005318 (1991-04-01), Shafer
patent: 5079876 (1992-01-01), Zumstein
patent: 5396736 (1995-03-01), Bando
Bando Kiko Co., Ltd.
Little Willis
Morgan Eileen P.
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