Quantitative sand adding mechanism and quantitative sand adding method of core shooter

Abstract

The invention discloses a quantitative sand adding mechanism of a core shooter. The core shooter comprises a lower rack and an upper rack located above the lower rack, wherein the lower rack is provided with a movable shooting head device. The quantitative sand adding mechanism comprises a sand storage hopper, a first sand adding valve, a vibrating motor and a quantitative hopper, wherein the sand storage hopper is mounted on the upper rack, the first sand adding valve is arranged at a sand outlet of the sand storage hopper, the vibrating motor is mounted on the outer wall of the sand storage hopper, the first sand adding valve is an adjustable valve, the quantitative hopper is connected onto the upper rack through a weighing component, a sand inlet of the quantitative hopper is connected with the sand outlet of the sand storage hopper through the first sand adding valve, a sand outlet of the quantitative hopper is provided with a second sand adding valve, the shooting head device is connected to the sand outlet of the quantitative hopper through the second sand adding valve when located in a sand adding position, and the sand adding process is not affected by the piling shape of molding sand and factors during valve closing. The invention further discloses a quantitative sand adding method of the core shooter adopting the quantitative sand adding mechanism.

Description

technical field [0001] The invention relates to a quantitative sand adding mechanism of a core shooting machine, in particular to a quantitative sand adding mechanism and a quantitative sand adding method of a core making machine. Background technique [0002] In the production process of the core making machine, for complex sand cores, the sand shooting conditions of the equipment are required to be very strict, and the basic requirements for the sand shooting conditions of the equipment are consistent. The main factors affecting the sand shooting conditions are the sand shooting pressure and the sand storage in the nozzle. In the working condition of the core shooter, the fluctuation of the sand shooting pressure of the equipment during production is basically small, so it is required that the amount of sand stored in the shooting head of the equipment should be kept basically the same during the production process. [0003] In the existing core making machine, in the quan...

AI Technical Summary

Problems solved by technology

[0007] Therefore, in the technology of adding sand to the shooting head by using ultrasonic or laser ranging switch, the quantitative sanding is not very accurate.

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