Machine and method for forming free curved surfaces of silicate glass

Abstract

The invention discloses a machine and a method for forming free curved surfaces of silicate glass, and is applicable to machines and methods for forming free curved surfaces of silicate glass. The machine comprises a tank (11). An upper plane of the tank is fixed to a worktable (1), a furnace chamber (14) and a cooling chamber (15) are mounted above the worktable, the cooling chamber is mounted at the front end of the furnace chamber, a feed chamber (2) and a discharge chamber (8) are arranged on two sides of the furnace chamber, a push mechanism B (10) is mounted on the right side of the cooling chamber, the left side of the worktable is connected with a push mechanism A (13) by bolts, preheating devices (3), forming devices (4), a setting device (20) and a slow cooling device (5) are arranged in the furnace chamber, and cooling devices (6) are arranged in the cooling chamber. The machine and the method have the advantage that the problems of explosion and deformation phenomena of glass, decrease of the yield of products and deterioration of the quality of the products due to the fact that existing hot bending machines for the glass with curved surfaces directly enter annealing stations after the glass is formed, molds are excessively high in cooling speeds and the glass is excessively high in temperature difference can be solved.

Description

[0001] Technical field: [0002] The invention relates to a silicate glass free-form surface forming machine and a forming method. [0003] Background technique: [0004] Curved glass bending machines generally include preheating, forming, and annealing. During the glass bending process, the glass is generally put into the mold first, then the mold is placed in the preheating device for preheating, and then the mold is pushed to the forming device. Continue heating to soften the glass and form it in the mold, and then push the mold to the annealing device for annealing. The current curved glass hot bending machine directly enters the annealing device after the glass is formed, so that the cooling speed of the mold is too fast, which will cause glass Due to the excessive temperature difference, cracking and deformation occur, which reduces the yield and quality of the product. [0005] Invention content: [0006] The purpose of the present invention is to provide a silicate gl...

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Problems solved by technology

[0004] Curved glass bending machines generally include preheating, forming, and annealing. During the glass bending process, the glass is generally put into the mold first, then the mold is placed in the preheating device for preheating, and then the mold is pushed to the forming device. Continue heating to soften the glass and shape it in the mold, and then push the mold to the annealing device for annealing. The current curved glass bending machine directly enters the annealing device after the glass is formed, which makes the mold cooling speed too fast, which will cause glass Explosion and deformation occur due to excessive temperature difference, which reduces the yield and quality of the product

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