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Apparatus and method for making shell

A shell and inner core technology, which is applied to household appliances, other household appliances, household components, etc., can solve the problem of crushing composite fiber filaments and parting lines, difficult to form inverted package structure products, and adding post-processing polishing processes, etc. problem, to achieve the effect of easy molding, high molding efficiency and beautiful shell

Active Publication Date: 2017-07-04
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, using the conventional hot pressing process, it is difficult to form inverted structure products such as Unibody, and there will be problems such as the upper and lower molds crushing the composite fiber filaments and the parting line, so that the post-processing grinding process will increase, increasing the cost and impact Appearance, it is difficult to apply appearance parts to electronic product casings

Method used

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  • Apparatus and method for making shell
  • Apparatus and method for making shell
  • Apparatus and method for making shell

Examples

Experimental program
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Effect test

Embodiment 1

[0057] The structure involved in this embodiment can be applied to the casing of digital electronic products (such as mobile phones, MP3, etc.) or as the casing of other 3C products. It has one side upside down and the other three sides are straight sides. The core is divided into two parts, a first inner core and a second inner core.

[0058] The first inner core is a soft core such as silica gel or rubber formed by mold hot pressing, and the second inner core is formed by processing PC or POM with a numerical control machine tool (ie CNC). Wherein the shape of the outer surface of the first inner core is consistent with that of the inner surface of the casing, and at the same time, a part of the first inner core is hollowed out, and the hollowed out surface is made into an inclined plane. The second inner core completely imitates the hollowed-out slope of the first inner core, and an appropriate compression space is left to transmit pressure after the mold is completely clos...

Embodiment 2

[0063] Compared with the first embodiment, the casing involved in this embodiment has four sides turned upside down, which is more complicated. According to its structure, the inner core is divided into two parts: the first inner core and the second inner core.

[0064] The first inner core is a soft core such as silica gel or rubber formed by mold hot pressing, and the second inner core is formed by processing PC or POM with a numerical control machine tool (ie CNC). Wherein the shape of the outer surface of the first inner core is consistent with that of the inner surface of the casing, and at the same time, a part of the first inner core is hollowed out, and the hollowed out surface is made into an inclined plane. The second inner core completely imitates the hollowed-out slope of the first inner core, and leaves an appropriate compression space to transmit pressure after the mold is completely closed;

[0065] Since the four sides of the structure are inverted, in order to...

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Abstract

The embodiment of the invention discloses a device and a method for making a shell. The device for making the shell comprises a lower template, a first inner core, a second inner core and an upper template. A groove is formed in the lower template, at least one part of the side wall of the groove is sunk, and the shape of the groove is matched with that of the outer surface of the shell; the first inner core is provided with a flange matched with the sunk part and is a soft core; and the second inner core is matched with the first inner core. For the shell made according to the embodiment of the invention, the forming efficiency of the shell is high, and the formed shell is free of cellosilk bruising, parting lines and the like at the largest contour line.

Description

technical field [0001] The invention relates to the technical field of material forming, in particular to a device for making a shell and a method for making a shell with the device. Background technique [0002] As we all know, more and more electronic product casings, especially battery back covers, often use composite materials such as aramid fiber, glass fiber or carbon fiber, and more and more mobile phone and related electronic product casing structures use Unibody and other inverted structures. [0003] However, using the conventional hot pressing process, it is difficult to form inverted structure products such as Unibody, and there will be problems such as the upper and lower molds crushing the composite fiber filaments and the parting line, so that the post-processing grinding process will increase, increasing the cost and impact Appearance, it is difficult to apply appearance parts to electronic product casings. Contents of the invention [0004] The present in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/30
CPCB29C51/343B29C51/44B29L2031/3481
Inventor 兰品双李江辉张晓东叶鹏
Owner BYD CO LTD