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an extrusion mold

A technology of extrusion molding and moulds, which is applied in the direction of metal extrusion moulds, etc., can solve the problems of easy cracking of dies, and achieve the effects of easy cracking, convenient processing, and improved adaptability and service life

Active Publication Date: 2017-01-18
河南航天精工制造有限公司
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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 kind of extrusion molding die, to solve the problem that die piece is easy to crack in the prior art

Method used

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Examples

Experimental program
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Embodiment Construction

[0032] Embodiment 1 of a kind of extrusion mold of the present invention, as Figure 4-8 As shown: the extrusion mold includes a mold cover 11 , a mold core 13 and a mold sheet 12 . The mold sleeve 11 is provided with an inner cavity that runs through the upper and lower directions, and the inner cavity is stepped. The inner cavity includes a die cavity, a core cavity, and an opening in the axial direction. Assembled in the cavity of the mold piece, the mold piece 12 and the mold core 13 are correspondingly provided with a mold hole and a mold core hole extending in the vertical direction, and the mold core hole and the mold hole are connected. The mold core hole is a polygonal hole, and in this embodiment, the polygonal hole has twelve edges, which are twelve-sided holes. The outer peripheral surface of the die 12 is sleeved with an elastic ring 14. The elastic ring 14 has an inner peripheral surface elastically supporting the outer peripheral surface of the die 12 and an ou...

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Abstract

The invention relates to an extrusion forming mold. The extrusion forming mold comprises a mold sleeve; a ladder-shaped inner cavity penetrating a vertical direction is disposed in the mold sleeve; the inner cavity comprises a mold plate cavity, a mold core cavity and an open cavity successively along an axial direction; a mold core is arranged in the mold core cavity; a mold plate is arranged in the mold plate cavity; an outer peripheral surface of the mold plate is sleeved by an elastic ring that elastically contracts and expands in a radial direction; the elastic ring is provided with an inner peripheral surface matching the outer peripheral surface of the mold plate in a flexible support manner and an outer peripheral surface matching with the inner wall of the mold plate cavity in a flexible support manner. With the extrusion forming mold, cracking phenomenon of the mold plate can be prevented and a service life of the mold is prolonged.

Description

technical field [0001] The invention relates to an extrusion molding die. Background technique [0002] An existing extrusion molding die for producing nuts, such as Figure 1-3 As shown, it includes mold sleeve 1, and mold sleeve 1 is provided with an inner cavity that runs through the upper and lower directions. The mold core is installed in the cavity, and the mold piece 2 is installed in the mold piece cavity. The outer peripheral surface of the mold piece 2 is an interference fit with the inner wall of the mold piece cavity of the mold sleeve 1. There are corresponding openings on the mold piece 2 and the mold core 3. The mold hole extending along the up and down direction is connected with the mold core hole, and the mold core hole is connected with the mold hole. [0003] However, the existing extrusion dies have the problems of easy cracking and short service life. The reasons for the above problems are mainly caused by the following two points: 1) The die is made o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21C25/02
CPCB21C25/02
Inventor 黄忠宏董晨曦周杰
Owner 河南航天精工制造有限公司
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