Automatic rebounding device for movable block

Abstract

The invention provides an automatic rebounding device for a movable block, and the automatic rebounding device is used for movably arranging the movable block onto a body of a mould. The automatic rebounding device comprises a positioning block, a first locking nut, a second locking nut, a guide post, a positioning slot, a spring and a movable block, wherein when a core shooting mould is closed, the positioning block is pressed to move along the positioning slot, so that the movable block is driven to reach a predetermined position on the body of the mould; the spring is pressed, so that one end of the spring abuts against the positioning slot; and when the core shooting mould is opened, pressure borne on the tail end of the movable block is removed, so that the spring automatically rebounds to drive the positioning block to drive the movable block to return. The automatic rebounding device has the advantages of being simple in structure, convenient to operate, strong in applicability and the like, reduces dependency on labor power, improves manufacturing precision of a sand core, and effectively improves production efficiency.

Description

technical field [0001] The invention belongs to the field of mold making, in particular to the field of cold shot mandrel manufacturing, in particular to an automatic springback device for movable blocks in the shot mandrel. Background technique [0002] Mold is the basic process equipment of industrial production, known as the "mother of industry". As the basic industry of the national economy, mold involves various industries such as machinery, automobile, light industry, electronics, chemical industry, metallurgy, construction, etc., and has a wide range of applications. At present, my country has made great progress in the field of mold production, but there are still problems such as unbalanced development and low overall product level. Core-shooting molds are widely used in the foundry industry and have obvious advantages. Due to the high dimensional accuracy and good surface quality of the sand cores produced by them, core-shooting molds are mostly made of cast iron, ...

AI Technical Summary

Problems solved by technology

At present, my country has made great progress in the field of mold production, but there are still problems such as unbalanced development and low overall product level.

Core-shooting molds are widely used in the foundry industry and have obvious advantages. Due to the high dimensional accuracy and good surface quality of the sand cores produced by them, core-shooting molds are mostly made of cast iron, which has the characteristics of easy processing, easy casting, and high production efficiency. Most of the loose blocks in the mold are processed and formed by mold steel as a whole. Since the upper mold of the core shooting mold cannot be installed with loose blocks, some of the loose blocks are enlarged in outline, resulting in waste of production costs and high production costs; Shutdown and installation are complicated, cumbersome, and inefficient. Most of the loose blocks can only be positioned with dovetail pins or magnets. When starting the mold, the loose blocks and sand cores are taken out together, and the loose blocks are easy to fall off and cause damage.

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