A sand bucket for a core shooter capable of increasing the flow rate

Abstract

The invention discloses a sand hopper for a core shooter capable of increasing the flow rate. The sand hopper further comprises a sand shooting plate mechanism, a sand hopper mechanism, a sand inlet groove, a pressurizing valve, a spoiler and an air inlet hole, wherein the sand inlet groove is formed in the top of the sand hopper mechanism, and one side of the top of the sand hopper mechanism is in communication with the pressurizing valve through the formed air inlet hole. According to the sand hopper, the external core-covering sand is injected into the interior of the sand hopper mechanismthrough a feeding groove, then the pressurizing valve injects high-pressure gas into the interior of the sand hopper mechanism through an external air supply mechanism, when the core-covering sand enters between the two side straight plates, the high-pressure gas is mixed with the core-covering sand, the kinetic energy of the core-covering sand is improved through the flowing of the air flow, so that the flow rate of the core-covering sand is increased, the core-covering sand is discharged through the bottom, compared with the traditional manner of flowing through the gravity of the core-covering sand, the moving speed of the pressurized core-covering sand is higher, and the situation that the working condition of the core shooter is affected due to too slow movement of the core covering sand can be avoided.

Description

technical field [0001] The invention relates to the field of core shooting machines, in particular to a sand bucket for core shooting machines that can increase the flow rate. Background technique [0002] The injection molding machine uses compressed air to evenly inject the molding sand into the sand box for pre-tightening, and then applies pressure for compaction. Commonly used are vertical type boxless injection molding machine and horizontal type out-of-box injection molding machine. The vertical split boxless injection molding machine does not need a sand box, and the molding sand is directly injected into the molding room with a template. The sand-making mold has high dimensional accuracy. There are cavities on both sides of the sand box, and the productivity is high, but it is difficult to set the core. Quality requirements are strict. Horizontal parting injection molding machine uses a sand box for molding. After the sand mold is made, it is closed and unboxed. It...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem that the movement speed of the core-coated sand in the sand bucket is relatively slow in the prior art, and to provide a sand bucket for a core shooting machine that can increase the flow rate

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