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Precoated sand shell casting mold and process

A technology of shell casting and coated sand, applied in the direction of manufacturing tools, casting molding equipment, cores, etc., can solve the problems of low demoulding efficiency and high damage rate, and achieve the effect of simple operation

Active Publication Date: 2021-07-02
保定联想铸造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention proposes a film-coated sand shell mold casting mold and process, which solves the problems of low demoulding efficiency and high damage rate in shell mold casting in the related art

Method used

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  • Precoated sand shell casting mold and process
  • Precoated sand shell casting mold and process
  • Precoated sand shell casting mold and process

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Embodiment Construction

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts all involve the protection scope of the present invention.

[0049] Such as Figure 1 to Figure 5 As shown, this example proposes

[0050] The film-coated sand shell casting mold includes an upper mold 1 and a lower mold 2 that cooperate with each other, and the upper surface of the lower mold 2 is provided with a groove 3, and also includes:

[0051] The ejector device 4 is arranged on the lower die 2 for jacking up the upper die 1, and the ejector device 4 includes

[0052] There are several push plates 5, which are evenly distri...

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Abstract

The invention relates to the technical field of casting, and provides a precoated sand shell casting mold and process. The precoated sand shell casting mold comprises an upper mold and a lower mold which are matched with each other, and grooves are formed in the upper surface of the lower mold; the precoated sand shell casting mold further comprises an ejection device, the ejection device is arranged on the lower mold and used for ejecting the upper mold, and the ejection device comprises push plates and a synchronous driving mechanism; and the plurality of push plates are uniformly distributed on the lower portion the upper mold, the push plates are arranged in the grooves in a lifting manner, and the synchronous driving mechanism is arranged on the lower mold and is used for driving the plurality of push plates to synchronously ascend and descend. Through the technical scheme, the problems of low demolding efficiency and high damage rate during shell casting in the prior art are solved.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a film-coated sand shell type casting mold and technology. Background technique [0002] Shell casting is to use a heat-hardened molding sand (phenolic resin coated sand) to cover the metal template heated at 180-280°C to harden it into a thin shell (the thickness of the thin shell is generally 6-12 mm), and then Heat and solidify the thin shell to achieve sufficient strength and rigidity. Therefore, after the upper and lower shells are clamped with clamps or glued with resin, the mold can be formed without a sand box. The heating temperature of the casting metal formwork is generally At around 300°C, the molding sand used is resin sand, that is, resin sand with phenolic resin as the binder. [0003] Casting-coated sand shell type demoulding device is an important part of demoulding equipment, but in the prior art, the efficiency of taking molds is not high, and the traditional ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C9/06
CPCB22C9/068
Inventor 郭星辉
Owner 保定联想铸造有限公司
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