Method and device for bending glass plate

Abstract

The invention relates to a method for bending a glass plate and a device for bending a glass plate by using the method. The method comprises the following steps of: heating and softening the glass plate, transporting the glass plate into a forming region, lifting a supporting die, pre-bending the glass plate, lifting the glass plate by an upper pressing concave die, finally bending the glass plate, and transporting the glass plate into a cooling region or a tempering region for treatment. The device comprises a heating furnace, a transverse transportation roller bed, an upper pressing convex die, a lower pressing concave die and the supporting die. By using the method and the device provided by the invention, the heated and softened glass plate is quickly disengaged from the transverse transportation roller bed through the supporting die, the contact time between the glass plate and the transverse transportation roller bed is reduced, and the possibility of producing a roller trace on the glass plate is eliminated. Through the method and the device, the machining process and equipment are simplified, the production cost is saved, and the production efficiency of the product is also improved.

Description

technical field [0001] The invention relates to a method for bending a glass plate, and also relates to a device for bending a glass plate by applying the method. Background technique [0002] For a long time, curved glass sheets of various curvatures have been used in the construction and automotive industries, and with the development of science and technology, large-sized, large-curvature, and thin curved glass sheets are also more and more widely used. There are two common methods for bending glass sheets: one is gravity bending, which includes supporting the glass sheet on a bending frame or mold that is close to the final shaped shape, then feeding the glass sheet into a heating furnace for heating, and finally. After the glass plate is softened, the edges are gradually fitted with the bending frame or mold and bent into a specified shape through its own gravity; the second is pressing and forming, including heating and softening the glass plate, and feeding the glass ...

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a curved glass plate for the existing methods and devices that cannot make the heated and softened glass plate on the horizontal conveying roller table in the forming area separate from the horizontal conveying roller table without producing traces of the roller table. The method and the device, meanwhile, the method and the device can pre-bend the heated and softened glass plate

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