Efficient one-producing-more valve cover sand core die casting device

Abstract

The invention discloses an efficient one-producing-more valve cover sand core die casting device which comprises an upper die, a lower die and a valve cover sand core; the upper die and the lower dieare arranged up and down; the valve cover sand core is arranged in the upper die and lower die; a sprue gate is formed in the upper die; a first fixed block is fixedly mounted on the outer side wall of the upper die; a second fixed block is fixedly mounted on the outer side wall of the lower die; a first hanging ring is mounted on the side, close to the lower die, of the upper die; a second hanging ring is mounted on the side, close to the upper die, of the lower die; a spring is arranged between the upper die and the lower die and is movably connected with the first hanging ring and the second hanging ring; the valve cover sand core comprises valve cover sand core main bodies and a pouring channel; a plurality of small sand core nose ends are symmetrically arranged around the valve coversand core main bodies; the valve cover sand core main bodies are symmetrically distributed on the two sides of the pouring channel; through clamping joint of a clamping piece and a clamping groove, the upper die and the lower die are mounted in an up-down corresponding manner; and a mounting block is arranged to assist in corresponding arrangement of the upper die and the lower die, so that opposite arrangement of the upper die and the lower die avoids deviation.

Description

technical field [0001] The invention belongs to the technical field of sand boxes, and in particular relates to a high-efficiency one-out multi-valve cover sand core mold casting device. Background technique [0002] Sand casting is a widely used form of casting; as the name suggests, sand is used to create molds, sand casting involves placing a finished part model or wooden model in the sand, then filling the pattern with sand at the weekend and removing the pattern from the box In the future, the sand forms the mold. In order to take out the mold before casting the metal, the mold should be made into two or more parts. During the mold making process, holes and vent holes for pouring metal into the mold must be left to form a pouring system. After the mold is poured with the liquid metal, it is held for an appropriate time until the metal solidifies. After the part is removed, the mold is destroyed, so a new mold must be made for each casting. [0003] Sand casting is comm...

AI Technical Summary

Problems solved by technology

[0003] Sand casting is commonly used in valve production. At present, valve castings are mainly cast with wet sand molds and dry sand cores. When casting valves, the upper mold is placed on the lower mold, and the metal liquid is poured from the pouring port of the mold to cast the valve parts. The existing valves There is a deviation in the upper and lower molds in production, resulting in poor dimensional accuracy of the produced castings and affecting product quality

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