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High-yield mobile terminal 3D (three-dimensional) protective glass cover hot-press forming device

A mobile terminal and thermoforming technology, applied in glass forming, glass reshaping, glass production, etc., can solve problems affecting product yield, reducing product quality, increasing product production cost, etc., to shorten the shape forming time , reduce mold costs, reduce the effect of defective rate

Inactive Publication Date: 2017-11-24
GUANGDONG INTELLIGENT ROBOTICS INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the thermal conductivity of nitrogen is low, which easily leads to large temperature gradients, poor temperature control accuracy and temperature control response, which affects product yield, thereby increasing production costs and reducing product quality
[0006] In addition, in the prior art, when the radius of the curved surface of the cover glass changes, the mold must be remade, so when changing the appearance design, it takes a very high mold cost, which greatly increases the production cost of the product

Method used

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  • High-yield mobile terminal 3D (three-dimensional) protective glass cover hot-press forming device
  • High-yield mobile terminal 3D (three-dimensional) protective glass cover hot-press forming device
  • High-yield mobile terminal 3D (three-dimensional) protective glass cover hot-press forming device

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0064] Figure 1 to Figure 10 A first embodiment is illustrated.

[0065] The mold 200 is sequentially transferred inside the cavity 1 with certain sealing ability and thermal insulation ability, and the mold passes through the auxiliary preheating chamber 2, the first preheating part 3, the second preheating part 4, the third The preheating section 5, forming section 6, first cooling section 7, second cooling section 8, and auxiliary cooling chamber 9 perform staged heating, hot press forming, and staged cooling in the order of preheating, forming, and cooling.

[0066] The chamber 1 is filled with an inert protective gas whose thermal conductivity is higher than that of pure nitrogen.

[0067] The inert protective gas is a mixed protective gas obtained by mixing nitrogen (N2) and helium (He) in a certain proportion.

[0068] The mold 200 includes a lower mold, an upper mold, and a flat glass 201 made of tempered glass, as well as a forming part, a supporting part, and a gu...

no. 2 example

[0126] Figure 11 A second embodiment of the invention is illustrated, comprising:

[0127] Curved surface molding frame 50 is equipped with curved surface 51 at one or both ends, and the plate-shaped material 52 in the preheated state is placed on the upper surface; fixed part 60 is driven by actuator 61 to move up and down and has the ability to hold the material when forming. 52 is fixed at one end of the fixed rod 62; the pressing part 70 has a pressing piece 72, which is driven by the actuator 71 to move up and down and exerts a biased load on one side of the material 52 during molding, so that the material 52 and the curved surface Part 51 is in close contact to realize curved surface molding.

[0128] The second embodiment constituted in this way does not use a mold body composed of upper and lower molds, but utilizes a curved surface forming frame 50 with an open top to bend and shape the curved surface of the cover glass.

[0129] The fixing part 60 and the pressuri...

no. 3 example

[0133] Figure 12 A third embodiment of the invention is illustrated, comprising:

[0134] Curved surface molding frame 50 is equipped with curved surface 51 at one or both ends, and the plate-shaped material 52 in the preheated state is placed on the upper surface; fixed part 60 is driven by actuator 61 to move up and down and has the ability to hold the material when forming. One end of 52 is fixed to the fixed rod 62; Rolling pressing part 80 is provided with pressing roller 82, and it is moved up and down by the actuator 81 that moves along guide piece in the horizontal direction, with close contact material 52 surface during molding The rolling movement of the state makes the material 52 closely contact with the curved surface 51 to realize the forming of the curved surface.

[0135] The fixing part 60 and the rolling pressing part 80 of the third embodiment are also installed inside the sealed chamber not shown in the figure, and the plate shape in the preheating state ...

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Abstract

The invention discloses a high-yield mobile terminal 3D (three-dimensional) protective glass cover hot-press forming device. According to the high-yield mobile terminal 3D protective glass cover hot-press forming device disclosed by the invention, the product yield can be increased by reasonably raising a forming temperature when a plurality of protective glass covers made of a glass material and provided with curved surface parts on side edges are manufactured; the temperature control precision and the temperature regulating responsiveness can also be improved, and the temperature gradient and the mould cost can be reduced; moreover, the curved surface parts of various radiuses are formed easily; furthermore, separated moulds which only aim to form forming parts of the protective glass covers in a pressurized manner are provided and the separated moulds only aim to pressurize and form the forming parts of flat glass, so that the hot-press forming time is shortened, and the overall mould cost is also reduced by setting the mould material of a part contacted with the glass as an advanced material; forming operation moulds corresponding to various shapes can be manufactured easily by adopting a separated structure.

Description

technical field [0001] The invention relates to a high-yield mobile terminal 3D protective glass cover hot-press forming device, especially a device capable of improving product yield, reducing mold cost and easily molding when making a glass cover glass cover with curved surfaces on several sides. A smartphone 3D cover glass thermocompression molding device with curved surfaces of various radii on several sides. Background technique [0002] At present, mobile terminals such as smartphones and tablet computers, especially smartphones, are gradually abandoning resin covers for protective covers made of glass, which improves the firmness and aesthetics and improves product quality. [0003] Although flat glass can be made into the required thickness by calendering rolls by extrusion method and mass-produced, but the glass cover glass with curved surfaces on several sides or three or four sides puts the base material into the lower mold and The upper mold constitutes the inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03B23/03C03B23/035
CPCY02P40/57C03B23/0307C03B23/0305C03B23/0355C03B23/0357
Inventor 张国军倪明堂张乐之
Owner GUANGDONG INTELLIGENT ROBOTICS INST
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