Double-mass vibrating flask shaker

Abstract

The invention belongs to a cast in sand shell moulding production and a separating device for moulding sand, and in particular relates to a dual-plastid shakeout machine. The dual-plastid shakeout machine comprises a knockout machine table top, a main vibrating spring, a vibrating body, a sand outlet dustpan, a vibrating motor, a vibration isolation spring, and a machine base, wherein the vibrating motor is fixedly arranged on the vibrating body, the knockout machine table top is connected with the vibrating body through the main vibrating spring, the vibrating body is connected with the machine base through the vibration isolation spring, and the knockout machine table top is connected with the machine base through a compensating spring. With the compensating spring, the dual-plastid shakeout machine can work stably in a resonant state, the power consumption thereof is just about one fourth of that of a single-plastid shakeout machine, and the shakeout effect thereof is obvious better than the single-plastid shakeout machine; besides, the dual-plastid shakeout machine has the advantages of side sand flow, even sand flow, low pit depth, small vibration to a foundation, good machine durability and the like.

Description

technical field [0001] The invention belongs to separation equipment for castings and molding sand in sand casting production, in particular to a two-mass vibration shakeout machine. Background technique [0002] Vibrating shakeout machine is a separation equipment for castings and molding sand. Vibrating shakeout machines include single-mass vibrating shakeout machines and dual-mass vibrating shakeout machines. The structure and vibration characteristics of the single-mass vibrating sand shakeout machine determine that it has problems such as very high power consumption, relatively large vibration to the foundation, easy cracking of the welding part of the body, and easy heating of the motor. Aiming at the problems existing in the single-mass vibrating shakeout machine, a non-resonant two-mass vibrating shakeout machine has been developed. The non-resonant two-mass vibrating shakeout machine better solves the problems of foundation vibration, body cracking and motor heati...

AI Technical Summary

Problems solved by technology

The problem with the non-resonant two-mass vibration shakeout machine is that the sand shakeout effect is obviously not as good as that of the single-mass vibration shakeout machine

However, the two-mass vibrating shakeout machine operates in a resonance state, and the amplitude is very sensitive to the change of damping. The change of damping is closely related to the change of load. The load change range of the vibrating shakeout machine is between zero and the rated load, and the range of change is very large. , so that the amplitude stability becomes a prominent problem; in addition, due to the large range of load changes, coupled with vibration, the energy is mainly concentrated in the main vibration spring, resulting in the problem that the main vibration spring is easy to break

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