Unilateral hot-bending forming mold for hot-bending product

Abstract

The invention provides a unilateral hot-bending forming mold for a hot-bending product. The hot-bending product comprises a flat surface part of a main body and an arc surface part arranged at one endof the main body; the forming mold comprises an upper mold and a lower mold arranged above and below and connected in a clamping manner; a mold cavity for accommodating the hot-bending product is formed in the lower mold; the upper mold comprises a first upper mold and a second upper mold arranged separately; the first upper mold and the second upper mold are correspondingly arranged right abovethe plat surface part and the arc surface part of the hot-bending product, respectively; an arc-shaped structure for pressing the product to be bent and molded is fixedly arranged on a lower surface of the second upper mold; a first pressing block and a second pressing block are further arranged above the first upper mold and the second upper mold, respectively; and a dust cover is further arranged outside the mold to prevent dust from entering the mold and causing defects in appearance of the product. The unilateral hot-bending forming mold has a simple structure, is suitable for hot-bendingforming of various oversized products, ensures flatness and curvature of the products, and has a relatively high yield.

Description

technical field [0001] The invention relates to the field of production and processing of mobile phone glass, in particular to a single-side hot-bending molding die for hot-bending products. Background technique [0002] Nowadays, a single flat glass can no longer meet the production requirements, and the demand for various types of curved glass is increasing. These glasses are all made by heating ordinary glass at high temperature and applying force to make the sides bend and shape. Due to the characteristics of long length, large thickness and high bending arc, the super-large size glass is not conducive to hot bending processing. [0003] The existing processing method is to use two-plate molds to directly press the product up and down. Since the upper mold is a one-piece structure, too much pressure will cause defects in the plane part of the product, such as surface embossing, R-angle embossing, Inverted triangles, etc. increase the difficulty of the finishing process ...

AI Technical Summary

Problems solved by technology

[0002] Nowadays, a single flat glass can no longer meet the production requirements, and the demand for various types of curved glass is getting higher and higher. These glasses are made by heating ordinary glass at high temperature and applying force to make its sides bend and shape.

Due to the characteristics of long length, large thickness and high bending arc, the glass of super large size model is not conducive to hot bending processing

[0003] The existing processing method is to use two-plate molds to directly press the product up and down. Since the upper mold is a one-piece structure, too much pressure will cause defects in the plane part of the product, such as surface embossing, R-angle embossing, Inverted triangles, etc., increase the difficulty of the finishing process in the post-process, and affect the product's shipping standard; if the pressure is too small, the arc part of the product will not be bent in place

Therefore, even if the finished product is produced, the yield rate is low and the average cost is increased. Existing hot bending equipment and molds cannot produce ultra-large single-sided curved glass products that meet customer needs.

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