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Exhaust block structure preventing injection of die casting liquid

An exhaust block and exhaust channel technology, applied in the field of die casting, can solve the problems of obstructing gas discharge, dislocation of the exhaust block, and inaccurate positioning.

Inactive Publication Date: 2018-11-20
天津市发利汽车压铸件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the exhaust block at the present stage can generally guarantee the exhaust capacity of the mold to a large extent, during the injection process, due to the inaccurate positioning, the upper and lower exhaust blocks are prone to misalignment, resulting in a large gap on one side and a large gap on the other. The die-casting liquid on the small and large side may not have time to cool and solidify, causing the die-casting liquid to spray out of the mold, and the small side will hinder the discharge of gas

Method used

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  • Exhaust block structure preventing injection of die casting liquid
  • Exhaust block structure preventing injection of die casting liquid
  • Exhaust block structure preventing injection of die casting liquid

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Embodiment Construction

[0014] A venting block structure for preventing injection of die-casting liquid, which includes an upper venting block 1 and a lower venting block 6 that cooperate with each other, the upper venting block is a female mold, the lower venting block is a male mold, and the upper venting block The middle part is provided with a concave sinusoidal-shaped upper exhaust block exhaust channel 8 along the extension direction, and the lower exhaust block is provided with a convex lower exhaust channel 8 along the extension direction and matched with the upper exhaust block exhaust channel. block exhaust channel 7, the upper exhaust block is respectively provided with positioning protrusions 9 on both sides of the upper exhaust block exhaust channel, and the lower exhaust block is respectively provided with positioning protrusions on both sides of the lower exhaust block exhaust channel. Matching positioning depression 10, the upper exhaust block is provided with a limit groove 3 at the e...

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Abstract

The invention relates to the field of die casting, in particular to an exhaust block structure preventing injection of die casting liquid. The exhaust block structure comprises an upper exhaust blockand a lower exhaust block which are matched with each other. The upper exhaust block is a female die, and the lower exhaust block is a male die. A concave quasi-sinusoidal upper exhaust block exhaustpassage is formed in the middle of the upper exhaust block in the extending direction. A convex lower exhaust block exhaust passage matched with the upper exhaust block exhaust passage is formed in the middle portion of the lower exhaust block in the extending direction. Positioning protrusions are arranged on the parts, on the two sides of the upper exhaust block exhaust passage, of the upper exhaust block. Positioning depressions matched with the positioning protrusions are arranged on the parts, on the two sides of the lower exhaust block exhaust passage, of the lower exhaust block. Limiting grooves are formed in the positions, at the ends of the upper exhaust block exhaust passage, of the upper exhaust block. Limiting protrusions matched with the limiting grooves, are formed in the positions, at the ends of the lower exhaust block exhaust passage, of the lower exhaust block. The exhaust block structure provided by the invention is simple in structure and accurate in positioning andcan prevent injection of the die casting liquid.

Description

technical field [0001] The invention relates to the field of die-casting, in particular to an exhaust block structure for preventing the injection of die-casting liquid. Background technique [0002] When the die-casting machine is die-casting, the die-casting liquid passes through the main channel, cross-runner, gate, mold cavity, slag bag and exhaust block in sequence, and finally completes the entire injection process of the die-casting liquid. The main function of the exhaust block is to discharge the air holes in the mold cavity, so that the molten die-casting liquid loses heat quickly and solidifies here, ensuring that the gas can be discharged quickly and the die-casting liquid will not splash out of the mold. Although the exhaust block at the present stage can generally guarantee the exhaust capacity of the mold to a large extent, during the injection process, due to the inaccurate positioning, the upper and lower exhaust blocks are prone to misalignment, resulting i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/22B22D17/24
CPCB22D17/22B22D17/24
Inventor 王洪刘士涛郭增未
Owner 天津市发利汽车压铸件有限公司
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