Inert gas-protected curved glass forming device

Abstract

The invention discloses an inert gas-protected curved glass forming device, comprising a tunnel type heating furnace, a closed mold inlet passage and a mold cooling passage; the tunnel type heating furnace comprises a furnace body and a main propulsion mechanism, the furnace body comprises an inlet and an outlet, a hearth of the furnace body internally comprises a mold passage, the hearth is filled with inert gas, and the mold passage is connected with the inlet and the outlet of the furnace body; the mold inlet passage is connected with the inlet of the furnace body, a joint between the moldinlet passage and the furnace body inlet and an inlet of the mold inlet passage are respectively provided with sealing gates; the mold cooling passage is connected with the outlet of the furnace body,and an inlet and an outlet of the mold cooling passages are respectively provided with sealing gates; a cavity of the mold inlet passages and a cavity of the mold cooling passage are respectively filled with inert gas. The mold needs to pass through closed passages before entering and after leaving the tunnel type heating furnace, the inert gas consumption is small, the oxygen content in a heating cavity is small, the mold and an auxiliary material are not easily oxidized, and the service life is long.

Description

technical field] [0001] The invention relates to hot-bending forming of curved glass, in particular to an inert gas-protected curved glass forming device. Background technique] [0002] Curved glass has the advantages of thinness, transparency and cleanliness, anti-fingerprint, etc., and has various superior performances such as high appearance, good touch, and additional performance gains in use characteristics. Therefore, the market calls for the use of 3D glass to produce various electronic products, such as smart phones. Mobile phones, tablets, displays, etc. [0003] The hot bending machine is used for hot bending processing of glass surfaces. The molds and corresponding auxiliary materials in the high temperature furnace are quickly oxidized under high temperature conditions, and the service life is short. [0004] Patent No. CN201620095932.3 utility model discloses a hot bending machine, including a furnace, a seat located in the furnace, and a pushing device; the fu...

AI Technical Summary

Problems solved by technology

Although the hot bending machine of this utility model uses inert gas to protect the mold and corresponding auxiliary materials in the hot chamber from being oxidized under high temperature conditions, which improves the service life of the mold and auxiliary materials, the cavity structure of the tunnel heating furnace is integrated. Body structure, the two ports are open, the structural sealing performance is low, oxygen enters the cavity from both ends of the tunnel heating furnace; the inert gas is continuously inflated, the consumption of the inert gas is large, the deoxygenation function in the cavity is poor, and the mold cannot be obtained Continuous protection, short replacement cycle of auxiliary materials

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