Core pulling device of cylindrical core with backoff structures uniformly distributed on cylindrical surface

A core-pulling device and cylindrical technology, applied in the field of core-pulling devices, can solve the problems of large internal volume, complex structure and high cost of the mold

Active Publication Date: 2013-10-23
宁波和鑫光电科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] For the core-pulling and demoulding of the cylindrical core with an undercut structure on the circumference of the cylinder, the prior art uses an oil cylinder to extract the conical core set in the cylindrical core with a valve structure before the product is ejected from the mold. Then, a number of oil cylinders respectively drive the core valve slider with an undercut structure to shrink centripetally from the product, and then the mold pushes out the product to demould; due to the larg

Method used

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  • Core pulling device of cylindrical core with backoff structures uniformly distributed on cylindrical surface
  • Core pulling device of cylindrical core with backoff structures uniformly distributed on cylindrical surface
  • Core pulling device of cylindrical core with backoff structures uniformly distributed on cylindrical surface

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Embodiment Construction

[0020] refer to Figure 1 to Figure 6 , a core-pulling device for a cylindrical core evenly distributed on the cylindrical surface of the present invention, including a core column 1, an A slider 2, and a B slider 3, wherein: the core column 1 is small at the top and large at the bottom, six Pyramid-shaped columnar steel member, the cylinder surface of the core column 1 is evenly equipped with six ribs protruding outward, up and down, and projected radially in the top view. The formed groove is called a chute, the top of the rib is provided with a dovetail-shaped chute called B chute 12, and the bottom of the chute is provided with a dovetail-shaped chute called A chute 11 , the cone angle of the A chute 11 is greater than the cone angle of the B chute 12;

[0021] The A slider 2 is a long strip in the up and down direction, and a hexagonal block steel member in a top view projection. One side of the A slider 2 is a 1 / 12 cylindrical arc surface called the A centrifugal surfac...

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PUM

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Abstract

The invention discloses a core pulling device of a cylindrical core with backoff structures uniformly distributed on a cylindrical surface. The device includes a core column (1), A sliding blocks (2), and B sliding blocks (3). According to the invention, six A sliding blocks, six B sliding blocks, and one core column are adopted to fit to form a cylindrical fit core with uniformly distributed backoff structures. The A sliding blocks and the B sliding blocks are connected and are in staggered arrangement around the core column at intervals. By the technical scheme of staggering the A sliding blocks and the B sliding blocks at intervals and lead them to concentric contraction, the problems of complicated structure, large body and high cost existing in the prior art are overcome, so that the injection mold of the cylindrical core with backoff structures uniformly distributed on the cylindrical surface can achieve the purposes of structure simplification, body decrease and cost reduction.

Description

technical field [0001] The invention relates to a core-pulling and demolding device for an injection mold, in particular to a cylindrical core that is used for an injection mold to extract a cylindrical core with an undercut structure evenly distributed on the cylindrical surface from a product by core-pulling and demoulding. Core pulling device for fabric inverted cylindrical core. Background technique [0002] For the core-pulling and demoulding of the cylindrical core with an undercut structure on the circumference of the cylinder, the prior art uses an oil cylinder to extract the conical core set in the cylindrical core with a valve structure before the product is ejected from the mold. Then, a number of oil cylinders respectively drive the core valve slider with an undercut structure to shrink centripetally from the product, and then the mold pushes out the product to demould; due to the large number of oil cylinders used, and the oil cylinders and auxiliary auxiliary ...

Claims

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Application Information

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IPC IPC(8): B29C45/44
Inventor 李和鑫
Owner 宁波和鑫光电科技有限公司
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