Glass manufacturing – Processes – Glass preform treating
Patent
1997-07-08
1999-02-23
Chin, Peter
Glass manufacturing
Processes
Glass preform treating
65105, 65166, 65174, 65176, 83879, 83880, B26D 308
Patent
active
058739220
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a process for dividing glass panels into blanks, in which the glass panels are notched and then broken according to the blanks to be produced.
The invention further relates to a device for dividing glass panels into blanks with a station for notching glass panels, a station that has an essentially vertically oriented support surface with a conveyor on its lower edge and a cutting head adjustable along the support surface, and with stations for breaking the glass panels along previously produced notched lines (X, Y) into blanks.
DESCRIPTION OF THE RELATED ART
In the known processes for dividing glass panels into blanks, glass cutting tables and breaking tables are used on which the glass panels, lying horizontally, are notched and broken. In this connection, EP-A-457 751 and EP-A-564 758 are pointed out as examples.
A drawback in these known devices for dividing glass panels is not only that they require a lot of space but that the glass panels, which are stored standing essentially vertically in a storage location, must be laid down in a horizontal position and then transported to the glass cutting table. The blanks finally obtained must again be uprighted into a vertical position before they are fed to a further processing or to an intermediate storage location (partitioned vehicle and the like).
Thus the known devices are distinguished by a large space requirement and the known method of working requires the glass panels to be laid down and the blanks obtained to again be uprighted.
It is known from U.S. Pat. No. 4 871 104 to notch and break glass panels while they are oriented standing essentially vertically. For this purpose, the device shown in U.S. Pat. No. 4 871 104 exhibits a support device for the glass panels to be divided, a cutting head that can be moved along the support device vertically up and down and a breaking device in the area of the cutting device. The drawback of the device known from U.S. Pat. No. 4 871 104 is that it is suited exclusively for dividing glass panels into strips along cutting lines that are parallel to one another.
SUMMARY OF THE INVENTION
The object of the invention is to propose a process for dividing glass panels and a device suitable especially for performing it with which space is saved and expensive handling of the glass panels and blanks is avoided.
According to the invention, this object is achieved with the process of claim 1.
The device according to the invention, also suited for performing the process according to the invention, is characterized in that the stations for breaking the glass panels, relative to the conveying direction (arrow 26) of the glass panels through the device, are placed after the station for notching the glass panels and in that a device for pivoting parts of glass panels by 90.degree. is provided between at least a first breaking station and the subsequent breaking stations.
Preferred and advantageous configurations of the process according to the invention and preferred and advantageous embodiments of the device according to the invention are the object of the subclaims.
With the process according to the invention and the device according to the invention, the glass panels are notched standing essentially vertically (in practice, slanted about 5.degree. to 7.degree. to the rear) while leaning on a support surface and then transported to the breaking stations. This results in a limited floorspace requirement for the device according to the invention and it is no longer necessary to lay the glass panels down into the horizontal position after they have been taken from a storage location and to upright the finally obtained blanks again into the essentially vertical position to take them, for example, to an insulating glass finishing line or to an intermediate storage location.
BRIEF DESCRIPTION OF THE DRAWINGS
Other details, features and advantages of the process according to the invention come out from the following description, which makes reference to the accompanying dra
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Chin Peter
Vincent Sean
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