Sand core pressure-casting servo driving system of vertical parting molding machine

Abstract

The invention relates to a sand core pressure-casting servo driving system of a vertical parting molding machine. The servo driving system comprises a control mechanism, a profiling chamber and a servo motor. A front driving module and a rear driving module are arranged in the control mechanism. The front driving module comprises a front oil cylinder, a forward pressing plate and a front oil cylinder piston, wherein the forward pressing plate is arranged at the front part of the profiling chamber and connected with the front oil cylinder. The rear driving module comprises a backward pressing plate, a rear oil cylinder, a guide rod and a cam mechanism, wherein the backward pressing plate is arranged at the rear part of the profiling chamber; the rear oil cylinder is fixed at the rear part of the front oil cylinder; the rear oil cylinder is connected with the guide rod through a standing base behind the rear oil cylinder; the guide rod is connected together with the cam mechanism through a guide sleeve; and the cam mechanism is connected together with the backward pressing plate through a connecting rod mechanism.

Description

Technical field [0001] The invention belongs to the field of manufacturing technology, and specifically relates to a vertical parting molding machine sand core die casting servo drive system. Background technique [0002] The sand core die-casting control system of the moulding machine is generally controlled by a conventional ordinary motor, and is controlled by 6 valve bodies. The displacement measurement uses a rotary encoder. This control method is particularly noisy, and it is difficult to control the 6 valve bodies separately. Once a failure occurs, it is difficult to find the cause and repair. At the same time, the displacement accuracy of the positive and negative pressure plates is not high, which delays production and affects production efficiency; and the plunger pump of the equipment is always in working condition and consumes serious energy; the hydraulic valve block is complicated and maintenance inconvenient. Summary of the invention The invention overcomes the...

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Problems solved by technology

[0002] The sand core die-casting control system of the molding machine is generally controlled by a conventional motor, and is controlled by 6 valve bodies. The displacement measurement uses a rotary encoder. This control method is very noisy, and it is difficult to control the 6 valve bodies separately. Once a fault occurs, it is difficult to find the cause and maintain it. At the same time, the displacement accuracy of the positive and negative pressure plates is not high, which delays production and affects production efficiency; inconvenient

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