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A mold structure and its manufacturing process

A production process and mold technology, applied in the field of mold structure and its production process, can solve the problems of unstable sand core fixation, easy eccentric core, low yield, etc., to prevent defects in processing, improve strength and yield improved effect

Active Publication Date: 2020-04-10
LIYANG WANSHENG CASTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the defects in the prior art that the sand core used for forming the middle through hole is not firmly fixed, easy to eccentric, and the yield is low, the present invention provides a sand core that can firmly fix the sand core for forming the middle through hole and improve the yield. Mold structure and its manufacturing process

Method used

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  • A mold structure and its manufacturing process
  • A mold structure and its manufacturing process
  • A mold structure and its manufacturing process

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Embodiment Construction

[0035] Such as Figure 1-7 , a mold structure, characterized in that: the main body of the casting 1 is a centrally symmetrical structure, the center of the casting 1 has a stepped through hole 11, the bottom of the casting 1 has a plurality of first grooves 12, and the side wall of the casting 1 near the bottom has a second The groove 13, the diameter of the stepped through hole 11 at the end away from the bottom of the casting 1 is larger than the diameter of the end of the casting 1 near the bottom;

[0036] The mold structure includes an upper box 2 and a lower box 3, the parting surfaces of the upper box 2 and the lower box 3 are arranged along the top surface of the second groove 13 of the casting 1, and the mold structure includes a stepped through hole 11 with the casting 1 The first sand core 4 whose shape matches, the lower box 3 has the second sand core 5 that matches the shape of the second groove 13, the side of the cavity inside the upper box 2 matches the shape ...

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Abstract

The invention relates to the technical field of casting, and discloses a casting mould structure and manufacture technology thereof. The ladder of the upmost end of a first sand core is provided witha chilling block element; a first rib is also arranged in the first sand core; a core rod is fixed on the center position of the first sand core by the first rib; the bottom of the first sand core isprovided with a metal positioning head; the bottom surface of the inner cavity of a lower box is provided with a metal positioning ring cooperated with the metal positioning head; the top surface of the inner cavity of an upper box is matched with the top shape of the first sand core; the first rib is also fixedly provided with a first hoisting hook; box iron is fixed above the upper box; the first hoisting hook and the box iron is detachably fixed to enable the positions of the first sand core and the upper box to be relatively fixed. The first sand core of the casting mould structure does not shake, is free from core shift and is high in a rate of finished products.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a mold structure and a manufacturing process thereof. Background technique [0002] At present, in the field of casting, the sand core used to form the middle through hole is generally only positioned with the upper box or the lower box. During the casting process, the position of the sand core will easily cause eccentricity, resulting in defective products. In addition, the existing technology After the medium coating is completed, it is generally dried naturally. However, the naturally dried coating is prone to warping and sticks to the casting, which affects the processing quality. Contents of the invention [0003] In order to solve the defects in the prior art that the sand core used for forming the middle through hole is not firmly fixed, easy to eccentric, and the yield is low, the present invention provides a sand core that can firmly fix the sand core for forming the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C9/24B22C9/02B22C9/10B22C9/12B22C21/14
CPCB22C9/02B22C9/10B22C9/12B22C9/24B22C21/14
Inventor 吕云琪马运安
Owner LIYANG WANSHENG CASTING
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