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Sand shooting nozzle and core shooting machine comprising same

A technology for sand shooting nozzles and core shooting machines, which is applied in the field of core shooting machines and sand shooting nozzles. It can solve the problems of easy sand leakage and easy clogging of sand shooting nozzles, and achieve the effect of improving air blowing efficiency and preventing clogging

Inactive Publication Date: 2017-07-04
郭敏青
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used warm core box and hot core box sand shooting machines have the problem that the sand nozzle is easy to leak sand and easy to block

Method used

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  • Sand shooting nozzle and core shooting machine comprising same
  • Sand shooting nozzle and core shooting machine comprising same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Such as figure 1 As shown, the core shooting machine of this embodiment includes a sand bucket 2, a sand shooting cylinder 3, a sand shooting bucket 4, a sand shooting plate 5, a sand shooting nozzle 1, a mold 6, a vacuum pump 7, and a vacuum pipeline 8 connected sequentially from top to bottom. , wherein the sand shooting channel 11 surrounding the sand shooting nozzle 5 is provided with a water cooling layer 18, and the water circulation is carried out through the water inlet 181 and the water outlet 182, and a plurality of nozzles are connected in series to form a water cooling system.

[0020] In this embodiment, the thickness of each position of the water-cooling layer is the same, and the flow rate of water can be adjusted through the flow regulating valve as required so that the sand in the sand-shooting channel can be cooled synchronously, which is beneficial to control the thermal curing of the molding sand and prevent the sand-shooting channel from being blocke...

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PUM

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Abstract

The invention provides a sand shooting nozzle and a core shooting machine comprising the same. The sand shooting nozzle comprises a sand shooting passage (11), and is characterized in that at least one side of the sand shooting passage (11) consists of a movable wall board (12); the upper part of each movable wall board is provided with a slope, so that the sectional area of the upper part of the sand shooting passage (11) is gradually decreased from top to bottom; and each movable wall board (12) is supported by elastic devices. The sand shooting machine has the advantage that the sand shooting nozzle can be prevented from being blocked during sand shooting.

Description

technical field [0001] The invention relates to a sand shooting nozzle and a core shooting machine including the sand shooting nozzle. Background technique [0002] The core box is the process equipment required in the core making process. At present, the hot core box and the warm core box are mostly used. Hot core box core-making is a core-making process in which resin sand is injected into a core box heated to a certain temperature with compressed air at a certain pressure by a sand shooting machine, and the resin sand is rapidly formed and hardened. The warm core box method uses a passive or latent catalyst. When heated, a strong acid is precipitated to promote the hardening of the resin, and it only plays a catalytic role in the hardening process. The warm core box and hot core box sand shooting machines currently used have the problem that the sand nozzle is easy to leak sand and easy to block. Contents of the invention [0003] The technical problem to be solved by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C15/24
CPCB22C15/24
Inventor 郭敏青
Owner 郭敏青
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