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Die

一种模具、母模的技术，应用在具有较高偏心精度的模具领域，能够解决模仁倾斜、降低模具偏心精度、下顶板倾斜等问题，达到避免倾斜、提高偏心精度的效果

Inactive Publication Date: 2011-03-30
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the thimble pushes the top mold core, it will return to its position driven by the lower top plate. During the return process, the lower top plate may tilt, causing the thimble fixed on the lower top plate to also tilt.
The mold core may also be inclined under this action, thereby reducing the eccentricity accuracy of the mold and seriously affecting the quality of injection molded products

Method used

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Embodiment Construction

[0011] The mold provided by the technical solution will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0012] Please also refer to figure 1 with figure 2 , The mold 20 provided by the embodiment of the technical solution includes an ejector mechanism 10, a carrier plate 21, a male mold 22, a male mold kernel 23, a male mold kernel pad 24, a female mold 25, a female mold kernel 26 and a female mold kernel pad 27. The male die 22 is opposite to the female die 25, the male die core 23 is accommodated in the male die 22, and the female die core 26 is accommodated in the female die 25 for matching with the male die. The kernels 23 cooperate to form mold cavities to form products.

[0013] The ejection mechanism 10 includes a lower top plate 11 , an upper top plate 12 , a gasket 14 , an ejector pin 13 and a fixing piece 15 .

[0014] The lower top plate 11 can be a square plate with opposite upper surface 110 and lower surface 111 ...

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PUM

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Abstract

The invention relates to a die. The die comprises a male die, a core insert, a female die, a cavity insert and an ejection mechanism, wherein the male die is opposite to the female die; the core insert is accommodated in the male die; the cavity insert is accommodated in the female die and is used for matching with the core insert so as to form a die cavity for forming a product; the ejection mechanism comprises a lower ejection plate and an ejection needle; the ejection needle comprises an ejection rod which is fixed to the lower ejection plate, and an ejection block which is used for ejecting the core insert; and the ejection rod is matched with the ejection block in an embedding way, so that the ejection needle is driven by the lower ejection plate to eject the core insert along a central axis of the core insert.

Description

technical field [0001] The invention relates to the technical field of molds, in particular to a mold with high eccentricity precision. Background technique [0002] Injection molding is widely used in the production of plastic materials due to its advantages of low cost, high efficiency, and high precision, especially injection molding of small precision components, such as micro lenses, lens barrels and other products. For details, please refer to the paper "Injection molding of binary optical elements" published by Robert D.TeKolste et al. ". [0003] In the injection molding process, the molten molding material is usually filled into the molding cavity of the mold under high pressure. After the molding material is cooled and formed, the ejector mechanism is used to push the core of the mold to release the injection molded product, so as to obtain the desired shape. The product. [0004] The ejection mechanism of the existing mold usually includes an ejector rod, a low...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/44B29C45/26B29C45/40
CPCB29C45/401B29C33/442
Inventor 黄建峰
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD