Sand lined metal mold crankshaft flange tool

Abstract

The invention provides a sand lined metal mold crankshaft flange tool, which comprises a mold plate mount, wherein a mold plate is arranged on the mold plate mount; an iron mold is arranged on the mold plate; four crankshaft flange casting cavities are formed in the iron mold, are distributed in a 2*2 matrix manner and are all connected with a pouring system which comprises a sprue and a cross gate; the sprue is vertically connected with the middle part of the cross gate; rectangular risers are connected to and arranged at two ends of the cross gate; each riser comprises a riser body and a riser base which are connected from top to bottom; riser necks are formed in the front and back sides of each riser base and are arranged symmetrically along the cross gate; the riser bases are connected with the four crankshaft flange casting cavities through the riser necks, respectively. According to the pouring system of the sand lined metal mold crankshaft flange tool, the riser necks are additionally arranged on the risers and the risers are connected with the cavities for producing crankshaft flanges through the riser necks, so that the shrinkage of a casting is reduced and the yield and the percent of pass of castings are increased.

Description

technical field [0001] The invention relates to the field of small and medium-sized castings, in particular to an iron mold sand-covered crankshaft flange tooling. Background technique [0002] Iron mold sand-covered casting refers to covering a thin layer of resin sand on the inner cavity of a metal iron mold, and then using this sand-coated iron mold to cast castings. In the internal combustion engine industry, high requirements are required for castings during product processing, such as figure 1 and figure 2 As shown, the gating system and the cavity of the current iron mold sand-covered casting process are usually connected by a blank-holding riser. The castings cast by this gating system are prone to shrinkage and shrinkage at the riser, and the yield is low. Contents of the invention [0003] A brief overview of the invention is given below in order to provide a basic understanding of some aspects of the invention. It should be understood that this summary is no...

AI Technical Summary

Problems solved by technology

In the internal combustion engine industry, high requirements are required for castings during product processing, such as figure 1 and figure 2 As shown, at present, the gating system and the cavity of the iron mold sand-covered casting process are usually connected through the edge riser. The castings poured by this gating system are prone to shrinkage and shrinkage at the riser, and the yield is low.

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