Severing by tearing or breaking – Breaking or tearing apparatus – Combined with preliminary weakener or with nonbreaking cutter
Patent
1991-08-19
1993-06-22
Phan, Hien H.
Severing by tearing or breaking
Breaking or tearing apparatus
Combined with preliminary weakener or with nonbreaking cutter
225 97, 225103, C03B 33037
Patent
active
052210340
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a glass breaking device suitable for forming a window glass for an automobile, etc., by breaking an unshaped glass plate, and a glass plate working machine including such a breaking device.
BACKGROUND ART
Conventional breaking devices in glass plate working machines mainly include fire type ones and pressing and breaking type ones.
For example, the fire type device includes a flame blowout unit disposed at a required position outside a glass plate cutting line such that the flame from the flame blowout unit is applied to a glass plate to heat same to thereby break the plate.
The press-breaking type device includes an end cutter and a press unit disposed at required positions. The cutter is first operated to form an end cutting line on the glass plate and then the press unit is operated to break the glass.
As mentioned above, in any of the conventional breaking devices, a flame blowout unit or an end cutter and a press unit are required to be prepared and disposed at required positions. If the shape of the glass plate changes, the layout of the flame blowout units or end cutter and press unit set for obtaining the previous shape of the glass plates must be canceled and a new layout of these devices must be made. These jobs are done almost by workers. If a plurality of the conventional breaking devices is used, they must be disposed in a narrow space while avoiding interference from each other. In addition, effective arrangement of the end cutter and press unit at desired positions is very troublesome, difficult, and time consuming, so that bad breakage, for example, chipping would occur to thereby deteriorate the productivity greatly.
As described above, in the conventional breaking apparatus of the glass plate working machine, the end cutter and press unit are disposed at predetermined positions. Thus, if the shape of a glass plate to be formed or cut varies, the layout of the end cutter and press unit must be changed correspondingly, so that the work is complicated, much work time is required, and this process is not suitable for flexible manufacturing if various forms of glass plates are to be obtained.
The present invention has been made in view of the above problems. It is an object of the present invention to provide a glass plate breaking apparatus which is capable of adjusting immediately to a different shape of a glass plate to be formed newly without requiring any re-layout of the end cutter and press unit which have been once laid out in a fixed manner, simplifying the breaking operation, reducing the work time, and is suitable for flexible manufacturing, and a glass plate working machine including such a breaking device.
DISCLOSURE OF THE INVENTION
According to the present invention, the above object is achieved by a glass plate working machine comprising a table on which a glass plate is placed, breaking mechanism for forming a cutting line on the glass plate placed on the table, pressing the glass plate with the cutting line at a portion of the glass plate near the cutting line to break that portion of the glass plate off, a moving unit connected to the breaking mechanism for moving the breaking mechanism linearly along a surface of the glass plate placed on the table, a turning unit connected to the moving unit for turning the moving unit around a center line normal to the surface of the glass plate, and a controller for controlling breakage operation by the breaking mechanism, movement operation by the moving unit and turning operation by the turning unit.
In the glass plate working machine according to the present invention, the breaking mechanism is connected to the moving unit which is, in turn, connected to the turning unit and the breakage operation of the breaking mechanism, the movement operation of the moving unit and the turning operation of the turning unit are controlled by the controller, so that if a control program corresponding to the shape of a glass plate to be formed is prepared and the controller is operated under the
Bando Kiko Co., Ltd.
Phan Hien H.
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