Multi-cavity Hafur core box mechanism and method for manufacturing sand core

Abstract

The invention relates to a multi-chamber harfur core box mechanism and a method for manufacturing sand cores, including a machine base, a support plate is embedded above the machine base, left and right core boxes are arranged oppositely on the left and right sides above the support plate, and left and right core boxes are arranged opposite to each other. A plurality of parallel cavities are formed between the right core boxes, and a single cavity is used to form a sand core; the left core box is driven by the leftward moving mechanism to move left and right on the left side of the cavity wall; the right core box is in Driven by the moving mechanism on the right side, it moves left and right on the right side of the cavity wall; the mandrel rods corresponding to the cavity one by one are installed through the machine base and the support plate from bottom to top, and the top of the mandrel rod extends into the cavity; A mandrel seat is installed at the bottom of the rod, a push-pull plate is fixed under the mandrel seat, and an extraction driving power is installed on the push-pull plate, and the extraction driving power drives the mandrel to move up and down together with the push-pull plate and the mandrel seat; the invention realizes multiple The one-time molding of the sand core greatly improves the molding efficiency, reduces the artificial strength, and ensures the molding accuracy and molding quality.

Description

technical field [0001] The invention relates to the technical field of sand casting, in particular to a multi-cavity Hafur core box mechanism and a method for manufacturing the sand core. Background technique [0002] Sand casting refers to the casting method of producing castings in sand molds. Steel, iron and most non-ferrous alloy castings can be obtained by sand casting. [0003] The sand core is usually used to form the inner hole or cavity of the casting, or some shape parts that hinder the mold release and are not easy to produce sand. Fix the sand core at a specific position in the sand mold, and then pour; after the casting is completed, the sand core is contained in the casting. Of course, the sand core is not completely wrapped, and a sand outlet will be left; finally, the sand core is broken , forming the cavity part of the casting. [0004] In the prior art, sand cores with complex shapes can be molded, but most of the sand cores are formed individually. Altho...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, sand cores with complex shapes can be molded, but most of the sand cores are formed individually. Although the sand core molding materials are cheap and easy to obtain, the work efficiency is low, resulting in high manual work intensity, and it is difficult for the production management of the enterprise. , operating waste

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