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Mobile phone curved glass hot bending composite die with temperature regulation function and control method

A curved glass and composite mold technology, which is applied in glass manufacturing equipment, glass molding, glass reshaping, etc., can solve the problems of easy offset, cracks and bubbles, and large bending stress at the edge of the glass. Achieve the effect of improving precision and reducing the generation of defective products

Pending Publication Date: 2019-03-08
GUANGDONG HUST IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current glass hot bending mold mainly has the following defects: 1. The bottom mold and the press mold cannot be aligned accurately, and the press mold is prone to offset when it is pressurized, the positioning accuracy is poor, and the offset cannot be corrected during the heating process Adjustment, resulting in poor bending accuracy of the phone glass
2. The detected temperature is the temperature of the heating plate, not the internal temperature of the die, and the measured temperature is not accurate
3. When the temperature in the cavity does not match the design temperature, it is difficult to accurately control the temperature of the glass in the cavity through the heating of the external heating plate, making the heating efficiency low, not energy-saving and environmentally friendly
4. Use the groove of the lower template to directly bend the flat glass, resulting in a large bending stress on the edge of the glass, which is prone to cracks and bubbles

Method used

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  • Mobile phone curved glass hot bending composite die with temperature regulation function and control method
  • Mobile phone curved glass hot bending composite die with temperature regulation function and control method
  • Mobile phone curved glass hot bending composite die with temperature regulation function and control method

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Embodiment Construction

[0034] In order to further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0035] as attached Figure 1-8 As shown, on the one hand, the present invention discloses a mobile phone curved surface glass hot-bending composite mold with temperature control, including a die 1 and a bottom die 2, a cavity 24 is provided in the bottom die 2, and both sides of the die 1 Grooves 3 are respectively provided, and the two sides of the bottom mold 2 are provided with bosses 4 meshing with the grooves 3, the edges of the grooves 3 and the bosses 4 are the same curved surface, and the center of the die 1 is provided with a die curved surface 18 , the cavity 24 is provided with an open cavity surface 25, the mold surface 18 and the cavity surface 25 are curved surfaces with the same curvatur...

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Abstract

The invention discloses a mobile phone curved glass hot bending composite die with a temperature regulation function and a control method thereof. The mobile phone curved glass hot bending composite die comprises a compression die and a bottom die, wherein a cavity is formed in the bottom die; grooves are respectively formed in two sides of the compression die; bosses meshed with the grooves are arranged at two sides of the bottom die; edges of the grooves and the bosses are in the same curved surface; a compression die curved surface is arranged at the center of the compression die; a cavitycurved surface is arranged in the cavity; the compression die curved surface and the cavity curved surface are curved surfaces with the same curvature; when the compression die is in pressing with the bottom die, the bosses are inserted in the grooves, the surfaces of the bosses are in fit with the surfaces of the grooves, the compression curved surface is pressed towards the cavity curved surface, a zone, which faces towards the cavity curved surface, in the bottom die and a zone, which faces towards the compression die curved surface, in the compression die are respectively provided with ametal heating tube, and the metal heating tubes are connected with a temperature controller after being connected with a power supply through guide lines. According to the mobile phone curved glass hot bending composite die disclosed by the invention, the bending accuracy of glass is increased, the consistency during bending of the glass is ensured, and the quality of a product is increased.

Description

technical field [0001] The invention belongs to the technical field of moulds, in particular to a mobile phone curved surface glass hot-bending composite mold with temperature regulation and a control method. Background technique [0002] Nowadays, mobile phones with curved screens are more and more popular. Most of the external screens of mobile phones with curved screens are 2.5D and 3D curved glass. The usable area of ​​the phone screen. The mold of the curved screen mobile phone glass is mainly a bottom mold and a pressing mold. The bottom mold is concave, and the pressing mold has a boss. When the bottom mold and the pressing mold are engaged, there is just a gap of the thickness of the mobile phone screen, which is about 3mm. . The flat glass is placed in the groove of the bottom film. The glass is slightly larger than the width of the groove just enough to keep the glass from falling. When the glass is bent, it is heated to soften the glass. The pressing mold is in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/03
CPCC03B23/0302
Inventor 张国军张臻明五一于海深赵健州卢亚张红梅张俊慧
Owner GUANGDONG HUST IND TECH RES INST
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