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Engine rocker chamber forming mold provided with blind risers

A technology for forming molds and engines, which is applied in casting forming equipment, casting molds, cores, etc., can solve problems such as wasting energy, and achieve the effects of saving injection risers, simple structure, and preventing bad shrinkage.

Pending Publication Date: 2018-02-16
TIANTAI YINXING MECHANICAL CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, risers are generally provided on more than one upwardly concave top wall in the cavity of the casting mold. When the casting liquid overflows from the riser, it is considered that the casting liquid is full and the casting is stopped. In this way, more risers will More casting liquid is injected, forming a large amount of casting liquid injected into the riser to form useless casting liquid, wasting energy

Method used

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  • Engine rocker chamber forming mold provided with blind risers
  • Engine rocker chamber forming mold provided with blind risers
  • Engine rocker chamber forming mold provided with blind risers

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Embodiment Construction

[0019] Below in conjunction with accompanying drawing, the present invention will be further described with specific embodiment, see figure 1 — image 3 :

[0020] The engine rocker chamber forming mold with a hidden riser includes a front mold 10 and a rear mold 11, a mold cavity 20 for forming an engine rocker chamber is formed between the front mold 10 and the rear mold 11, and more than one of the mold cavities 20 is upward A small air storage mold cavity 21 communicating with the mold cavity 20 extends upward from the concave top wall, and an exhaust plug is arranged on the small air storage mold cavity 21 .

[0021] The above-mentioned small gas storage cavity 21 has one end high and the other end low to form a high cavity 22 and a low cavity 23 , and the exhaust plug is arranged on the top wall 24 of the low cavity 23 .

[0022] The above-mentioned exhaust plug is a screw plug 40 .

[0023] The above-mentioned screw plug 40 is provided with a vent hole 25 penetrating...

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PUM

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Abstract

The invention belongs to the technical field of forming molds and relates to an engine rocker chamber forming mold provided with blind risers. The mold comprises a front mold and a back mold, whereinsmall air storage mold cavities communicated with a mold cavity extend upwards from one or more upward and concave top walls of the mold cavity formed between the front mold and the back mold, and exhaust plugs are arranged on the small air storage mold cavities. The mold has the advantages as follows: the small air storage mold cavities communicated with the mold cavity extend upwards from one ormore upwards concave top walls of the mold cavity to form the blind risers, during product casting, a casting liquid presses air in the mold cavity into the blind risers and forms certain air pressure, the air pressure can stop the casting liquid from entering the blind risers and has a thermal insulation effect to prevent non-uniform narrowing of products, and the exhaust plugs can prevent air in the small air storage mold cavities from being pressed into cast products to form casting defects. The mold is simple in structure, has a significant energy saving effect and is convenient to use and applicable to various kinds of casting molds.

Description

technical field [0001] The invention belongs to the technical field of molding dies, in particular to an engine rocker chamber molding die with a hidden riser. Background technique [0002] At present, risers are generally provided on more than one upwardly concave top wall in the cavity of the casting mold. When the casting liquid overflows from the riser, it is considered that the casting liquid is full and the casting is stopped. In this way, more risers will More casting liquid is injected, and a large amount of casting liquid is injected into the riser to form useless casting liquid, which wastes energy. Contents of the invention [0003] The object of the present invention is to provide an energy-saving casting mold with a blind riser. [0004] The purpose of the present invention is achieved like this: [0005] The engine rocker chamber forming mold with a hidden riser includes a front mold and a rear mold. A mold cavity for forming an engine rocker chamber is for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/08B22C9/24
CPCB22C9/088B22C9/24
Inventor 陈益德陈伟强陈再健
Owner TIANTAI YINXING MECHANICAL CASTING