Disc type casting member superpose pouring apparatus convenient to dismount

Abstract

The invention discloses a disc type casting member superpose pouring apparatus convenient to dismount. The apparatus is characterized in that a baseboard (1) is provided with multiple layers of sand molds (2), the sand molds (2) are superposed, an upper pressure plate (3) is arranged on the top layer sand mold (2), and the top layer sand mold (2) is provided with a gate pouring cup (11); the superposed sand molds (2) are arranged in a cylinder sandbox (4), and fixed screws (7) are uniformly distributed in the inner circumference of the cylinder sandbox (4) to fasten the upper pressure plate (3) and the superposed sand molds (2); and the body of the inner cup (12) of the gate pouring cup (11) is designed to be a filter screen (14), and the bottom between the inner cup (12) and an outer cup (13) is provided with a pouring gate (15). The apparatus improves the production efficiency of casting members, guarantees the dimension precision of the casting members, and improves the yield and quality of the casting members.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to a conveniently detachable stacking device for disc castings. Background technique [0002] The casting process can be divided into gravity casting, pressure casting and sand casting. Sand molds generally adopt gravity casting, and low-pressure casting, centrifugal casting and other processes can also be used when there are special requirements. Sand casting has a wide range of adaptability, small pieces, large pieces, simple pieces, complex pieces, single pieces, and large batches can be used. There are wooden molds for sand casting. In addition to single-piece sand castings, aluminum alloy molds or resin molds with high dimensional accuracy and long service life can be used. Although the price has increased, it is still much cheaper than molds for metal casting, especially in small batch and large-scale production. In addition, sand molds have higher refractoriness than metal...

AI Technical Summary

Problems solved by technology

Sand casting also has some disadvantages: because each sand mold can only be poured once, and the sand mold casts a casting product, the mold will be damaged after the casting is obtained, and a single casting is used for casting. When castings are produced in batches, the area occupied Larger, so the production efficiency of sand casting is low; and a casting requires upper mold, lower mold, and even middle mold, which shows that the casting process is inefficient and wastes resources

[0003] For this reason, people are currently trying to improve the sand casting process, especially for sand casting disc castings, to improve the pouring process of disc casting molds with overlapping settings to obtain higher casting production efficiency, but it is still inevitable to use Bottom molds, cover molds, etc. waste resources and are cumbersome in process; at the same time, there are inevitably disc castings due to overlapping molds that increase the height of the mold and shift the center of gravity, which causes the problem of inaccurate dimensional accuracy of the casting during the casting process; and The molds of disc castings are overlapped to make the mold reach a certain height. Only the upper mold or cover plate is set on the top mold, and the outer ring of the mold is fixed by a ferrule. During the casting process, the molds are heated layer by layer and can only expand upward. Compression deformation occurs to lift the box, which makes the dimensional accuracy of the casting seriously inaccurate, affects the yield of the casting, and seriously causes box explosion and molten iron leakage; there are also overlapping molds that cause uneven shrinkage of the casting during pouring from bottom to top, and shrinkage of the molten iron due to pressure difference Pores and other quality problems will affect the quality of castings

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