Tempering and forming device of hole-digging and bending glass plate

Abstract

The invention relates to the technical field of bending and forming of a glass plate, in particular to a tempering and forming device of a hole-digging and bending glass plate. The tempering and forming device comprises a bending module and a cooling air grid, wherein the bending module comprises an upper pressing convex mould and a lower annular concave mould; the lower annular concave mould comprises a mould frame, an outer forming ring and an inner forming ring; the outer forming ring is fixedly arranged on the mould frame; the inner forming ring is fixedly arranged in the outer forming ring; the shape of the inner forming ring is uniform with the shape of a through hole which is formed in the hole-digging and bending glass plate; the surrounding edge of the hole-digging and bending glass plate can be supported by the outer forming ring; the surrounding edge of the through hole can be supported by the inner forming ring. The tempering and forming device has the advantages that the deformation of the hole-digging part can be prevented, and the quality defects of light shielding or waviness at the surrounding of the hole-digging part are avoided; the problem of easiness in offset of the glass plate is solved, and the possible front-back deviation and right-left deviation on the bending mould can be prevented; the molded surface quality and rate of finished products are improved.

Description

Technical field: [0001] The invention relates to the technical field of bending and forming of glass plates, in particular to a tempering and forming device for bending glass plates, in particular to a tempering and forming device for digging holes and bending glass plates. Background technique: [0002] As we all know, the side window glass and rear windshield glass on the car are all toughened glass, which can ensure both strength and safety. At present, the tempered glass for automobiles adopts the physical tempering method. The physical tempering method is to heat the glass plate to the softening temperature, bend it and then cool it uniformly and rapidly, so that the outside of the glass plate is solidified due to rapid cooling, while the internal cooling is relatively slow. When the interior continues to shrink, the surface of the glass plate will generate compressive stress, while the interior will be tensile stress, thereby improving the strength and thermal stabilit...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a digging and bending glass plate in view of the shortcomings of the prior art such as easy breakage during the forming process, easy deformation of the digging part, easy displacement, and low yield in the toughening molding of the punching and bending glass plate in the prior art. Tempering forming device for glass plate

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