Injection mold for mobile phone shell production and processing

A technology for injection molds and mobile phone shells, which is applied in the field of injection molds for the production and processing of mobile phone shells. It can solve the problems of affecting the quality of finished workpieces, uneven density of finished workpieces, and easy generation of weld lines, etc., and achieves small temperature differences, increased temperature, and increased temperature. The effect of maximum heating efficiency

Pending Publication Date: 2022-02-15
深圳亚士德科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the injection molding of mobile phone cases, due to the difference in injection molding materials and environmental factors, there is semi-solidified plastic before the injection molding is completed, so that the cooling time of the injection molding materials is different, and the phenomenon of cooling and molding occurs successively, which can easily lead to the density of the finished workpiece. Uneven, and prone to weld marks, affecting the quality of finished workpieces

Method used

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  • Injection mold for mobile phone shell production and processing
  • Injection mold for mobile phone shell production and processing
  • Injection mold for mobile phone shell production and processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Provides an achievable option for increasing mold temperature.

[0039] Such as Figure 7 As shown, the preventive mechanism for increasing the mold temperature includes a heat transfer pipe 23, the heat transfer pipe 23 is located between the heat transfer plate 13 and the inner bottom of the lower mold base 12, and the heat transfer pipe 23 is distributed in a serpentine shape to increase the heat exchange space. The heat transfer pipe 23 is in contact with the top of the lower mold base 12, and also includes a water supply mechanism for injecting or extracting a corresponding temperature into the heat transfer pipe 23.

[0040] By arranging the serpentine heat transfer pipe 23, the length and width of the mobile phone shell can be compounded, so that the bottom of the die 9 can be compounded, and by arranging the serpentine structure, the length of the heat transfer pipe 23 can be increased, so that the heat transfer plate 13 The temperature can be quickly raised to...

Embodiment 2

[0043] A second achievable option for increasing mold temperature is provided.

[0044] Such as Figure 8 As shown, the preventive mechanism for increasing the mold temperature includes a heating wire 26 and a power supply head 30 for providing power to the heating wire 26. The heating wire 26 is a coiled disk structure, and the heating wire 26 can be heated to a corresponding temperature when energized.

[0045] It can also be implemented by means of electric heating. By setting the heating wire 26, high temperature can be generated when the heating wire 26 is energized, and its temperature can be changed by changing its voltage. Because the commonly used heating wire is a fixed resistance value, by setting the heating wire 26 is a disc connection structure of vortex lines, which can increase the heating efficiency, rapidly increase the temperature of the local space, and can increase the temperature of the heat transfer plate 13 evenly, so that the temperature difference bet...

Embodiment 3

[0047] Provides a third achievable option for increasing mold temperature:

[0048] Such as Figure 9 As shown, the preventive mechanism for increasing the mold temperature includes a gas heater 27. The gas heater 27 can heat the internal gas and output the gas. A sealed space is formed between the heat transfer plate 13 and the inside of the lower mold base 12. The gas heater An air intake pipe 28 is communicated between the output end of 27 and the sealed space, and a switchable air outlet pipe 29 is communicated with the outer wall of the lower mold base 12, and the air outlet pipe 29 communicates with the inside of the sealed space.

[0049] The gas heater 27 can heat the air, and the heat of the air is relatively uniform. When it is transmitted to the sealed space through the intake pipe 28, the internal pressure increases and the heat transfer is accelerated, so that the heat transfer plate 13 can be heated quickly, so that The speed that die 9 heats up accelerates.

...

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Abstract

The present invention discloses an injection mold for mobile phone shell production and processing. The injection mold comprises a bottom plate and two supporting plates at the top of the bottom plate, the tops of the two supporting plates are fixedly connected with a lower mold base, and the lower mold base is a topless box body; the inner wall of the lower mold base is fixedly connected with a heat transfer plate, the top of the heat transfer plate is detachably and fixedly provided with a female mold, the heat transfer plate can transfer heat to the female mold, and a prevention mechanism for increasing the temperature of the mold is arranged in the lower mold base. The injection mold also comprises an upper mold base, a male mold capable of getting close to the female mold to be closed is mounted at the bottom of the upper mold base, and the prevention mechanism for increasing the temperature of the mold comprises a heat transfer pipeline. The heat transfer pipeline is located between the heat transfer plate and the inner bottom of the lower mold base, and the heat transfer pipeline is distributed in a snakelike manner, so that the heat exchange space is increased. The heat transfer pipeline makes contact with the top of the lower mold base, and the female mold can be heated to a certain degree, so that the phenomenon of cooling in advance can be effectively prevented, and weld marks are reduced.

Description

technical field [0001] The invention relates to the technical field of mobile phone shell injection molds, in particular to an injection mold for production and processing of mobile phone shells. Background technique [0002] Injection molds are generally machines used to produce plastic products. Molten materials are extruded into the mold cavity by injection molding and cooled by the cooling system. In the molding process of mobile phone cases, due to material limitations and production efficiency, often Injection mold molding is adopted. [0003] In the injection molding of mobile phone cases, due to the difference in injection molding materials and environmental factors, there is semi-solidified plastic before the injection molding is completed, so that the cooling time of the injection molding materials is different, and the phenomenon of cooling and molding occurs successively, which can easily lead to the density of the finished workpiece. Uneven, and prone to weld m...

Claims

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Application Information

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IPC IPC(8): B29C45/73B29C33/04B29C33/02
CPCB29C45/73B29C45/7312B29C45/7337B29C33/04B29C33/02B29C33/046B29C2033/042
Inventor 胡鹏曾治国马宁
Owner 深圳亚士德科技有限公司
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