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Diversion protection type extrusion die

An extrusion die, protective technology, applied in the direction of metal extrusion die, etc., can solve the problems of easy deflection and large cantilever force.

Active Publication Date: 2017-10-24
GUANGZHOU VOCATIONAL COLLEGE OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The semi-hollow profile has a cantilever surrounded by die holes. Due to various defects in the design of the traditional extrusion die, the force on the cantilever is relatively large and it is prone to deflection

Method used

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Embodiment Construction

[0028] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0029] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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Abstract

The invention discloses a diversion protection type extrusion die which comprises an upper die and a lower die. Die holes used for forming semi-hollow profiles are formed in the lower die. The upper die is provided with a first tap hole and a second tap hole. A bypassing bridge is arranged between the first tap hole and the second tap hole. When the upper die is matched with the lower die, the end face, close to the lower die, of the bypassing bridge is located in the area defined by the die holes. Due to the fact that the end face, close to the lower die, of the bypassing bridge is located in the area defined by the die holes, the bypassing bridge has a shelter function on a cantilever defined by the die holes, during extrusion, liquid metal does not impact the cantilever in the direction from the upper die to the lower die, meanwhile, during extrusion forming, the liquid metal flows into the die through the first tap hole and the second tap hole which are located in the two sides of the die holes and enters the die holes from the two sides of the die holes, stress of the cantilever can be reduced, that is, the bending moment borne by the root of the cantilever is reduced, and the strength of the die is improved.

Description

technical field [0001] The invention relates to the technical field of molding dies, in particular to a diversion protection type extrusion die. Background technique [0002] With the continuous advancement of manufacturing technology, profiles of different specifications and varieties have emerged, among which semi-hollow profiles are widely used. [0003] The main production process of semi-hollow profiles is extrusion molding using molds. The semi-hollow profile has a cantilever surrounded by die holes. Due to various defects in the design of the traditional extrusion die, the force on the cantilever is relatively large and it is prone to deflection. Contents of the invention [0004] Based on this, the present invention overcomes the defects of the prior art and provides a diversion protection type extrusion die which reduces the stress on the cantilever. [0005] Its technical scheme is as follows: [0006] A diversion protection type extrusion die, comprising an u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C25/02
CPCB21C25/02
Inventor 黄雪梅邓汝荣
Owner GUANGZHOU VOCATIONAL COLLEGE OF SCI & TECH
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