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Demoulding mechanism of spiral undercut

A technology of demoulding mechanism and spiral, which is applied in the field of spiral barb demoulding mechanism, can solve the problems of troublesome mold assembly and complex structure, and achieve the effects of easy assembly, simple structure of demoulding mechanism and cost saving of mold assembly

Inactive Publication Date: 2010-10-27
MITAC PRECISION TECH(KUNSHAN) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a spiral barb demoulding mechanism to overcome the disadvantages of complex structure and troublesome mold assembly in the prior art

Method used

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  • Demoulding mechanism of spiral undercut
  • Demoulding mechanism of spiral undercut
  • Demoulding mechanism of spiral undercut

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Embodiment Construction

[0014] see image 3 The planar dissection structure schematic diagram of the demoulding mechanism of spiral barb of the present invention and Figure 4 As shown in the partial three-dimensional structure schematic diagram of the demoulding mechanism of the spiral barb of the present invention, the demoulding mechanism of the spiral barb is suitable for the production of spiral barb product molds with a helix angle greater than 45 degrees, which includes:

[0015] A rotary screw insert 1, the bottom of which extends a circle of convex portion 10 along its axial direction, and a groove 20 corresponding to the above-mentioned convex portion 10 is provided in the male template 2 of the above-mentioned mold, through the above-mentioned convex portion 10 and The cooperation of the above-mentioned groove 20 clamps the above-mentioned rotary screw inserter 1 in the male template 2 of the above-mentioned mould, and the rotary screw inserter 1 performs a horizontal rotation movement in ...

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Abstract

The invention discloses a demoulding mechanism of a spiral undercut, which is applicable to the mould for producing spiral undercut products with the spiral angle being greater than 45 degrees. The demoulding mechanism of the spiral undercut comprises a rotary type spiral insert which is arranged in a core plate of the mould; the rotary type spiral insert conducts horizontal rotary motion in the core plate under the action of external force; the rotary type spiral insert is provided with a screw thread with the spiral angle being greater than 45 degrees. The demoulding mechanism of the spiral undercut also comprises a thimble which is arranged on an ejector plate of the mould and penetrates through the rotary type spiral insert. The demoulding mechanism of the spiral undercut provided by the invention has a simple structure; the mould can be easily assembled, thus saving assembling cost of the mould and improving work efficiency.

Description

Technical field] [0001] The invention relates to a stripping mechanism of a spiral barb, in particular to a stripping mechanism of a spiral barb with a helix angle greater than 45 degrees. 【Background technique】 [0002] In the prior art, in order to achieve the purpose of separating the auger from the product, it is usually necessary to apply an external force to the auger to drive the auger to rotate, thereby separating the product from the auger. For example, please refer to figure 1 and figure 2 As shown, they are respectively the schematic diagrams of the plane anatomical structure and the partial three-dimensional structure of the prior art, a bolt column 21, the top of which is fixed on the female formwork 1 of the mold and radially penetrates into the male formwork 2, on the bolt column 21 External threads are provided, and a driving gear 22 is sleeved on the bolt column 21 in the male template 2. The driving gear 22 is provided with internal threads, and the conne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C33/44
Inventor 刘伟
Owner MITAC PRECISION TECH(KUNSHAN) CORP
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