Sand-jetting mechanism sand core-molding method using the same

A technology of sand shooting and sand shooting holes, which is applied in the direction of casting molding equipment, molds, cores, etc., can solve the problems affecting the compaction effect of core sand in the core box cavity, so as to reduce loss, ensure compactness, The effect of reducing air intake

Active Publication Date: 2009-06-24
SUZHOU MINGZHI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since some core sand is also stored in the injection head (3), it brings certain resistance to the flow of the core sand in the sand storage cylinder (2), which affects the compacting effect of the core sand in the core box cavity

Method used

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  • Sand-jetting mechanism sand core-molding method using the same
  • Sand-jetting mechanism sand core-molding method using the same

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Experimental program
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Embodiment Construction

[0014] Such as figure 1 The shown sand shooting mechanism 1 includes a main body sand shooting exhaust mechanism 4, a sand storage cylinder 2 which is arranged below the main body sand shooting exhaust mechanism 4 and stores core sand inside, and is located directly below the sand storage cylinder 2 and on the sand storage cylinder 2. The shot head 3 with a plurality of sand shot holes 31, the main body sand shot exhaust mechanism 4 injects a downward sand shot airflow into the sand storage cylinder 2, the core sand is shot out of the shot head 3 through the sand shot holes 31, and Sand cores are formed in the core box 5 located below the shot head 3 , and the main sand shot exhaust mechanism 4 is connected with a first control valve 41 for controlling the flow rate of the sand shot gas.

[0015] The top of the shooting head 3 is also provided with a shooting head sand-shooting mechanism 6, and the shooting head sand-shooting mechanism 6 injects a downward sand-shooting airflo...

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Abstract

The invention relates to a sand shooting mechanism, which comprises a main sand shooting and air exhausting mechanism, a sand storage cylinder arranged below the main sand shooting and air exhausting mechanism and storing core sand inside, and a shooting head positioned under the sand storage cylinder and provided with a plurality of sand shooting holes, wherein the main sand shooting and air exhausting mechanism shoots downward sand shooting airflow into the sand storage cylinder, and the upper part of the shooting head is also provided with a shooting head sand-shooting mechanism which shoots the downward sand shooting airflow into the shooting head. Because a sand shooting initial stage carries out sand shooting and air admittance through the upper part of the shooting head to drive the core sand inside the shooting head, the required kinetic energy is smaller, correspondingly, the required sand shooting airflow pressure is lower; therefore, the air inlet amount is reduced, and abrasion of a mould is slowed down. Matched with sand shooting motion of the sand storage cylinder driven by the sand shooting airflow of the main sand shooting and air exhausting mechanism, the sand shooting mechanism effectively ensures compactness of the sand core.

Description

technical field [0001] The invention relates to a sand shooting mechanism, in particular to a sand shooting mechanism for manufacturing sand cores, and also relates to a sand core forming method using the sand shooting mechanism. Background technique [0002] During foundry production, sand cores need to be prepared. The sand shooting mechanism (1) injects the core sand into the core box (5) at high speed and then forms a sand core through compaction molding. The sand shooting mechanism (1) generally includes a sand storage cylinder (2), a shooting head (3) and The main body sand-shooting exhaust mechanism (4), the core box (5) is arranged below the sand-shooting mechanism (1), and the core sand is injected into the airflow from top to bottom by the main body sand-shooting exhaust mechanism (1) during sand shooting. Driven to inject into the sand storage cylinder (2), and inject the core sand into the core box (5) through the injection head (3) arranged at the bottom of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C15/24B22C9/10
Inventor 杨洪伟李嘉
Owner SUZHOU MINGZHI TECH
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