Energy-saving hydraulic servo control system for tyre vulcanizer opening and closing mold

Abstract

The invention relates to an energy-saving hydraulic servo control system for a tyre vulcanizer opening and closing mold. The energy-saving hydraulic servo control system comprises an opening and closing mold unit and an energy supply unit which are connected through an oil path. The opening and closing mold unit comprises an oil cylinder, a one-way two-position two-way electromagnetic directionalvalve and an electro-hydraulic directional valve, wherein a rodless cavity oil path of the oil cylinder is provided with a one-way throttling valve and the one-way two-position two-way electromagneticdirectional valve sequentially; the electro-hydraulic directional valve is installed at the bottom of the oil path of the oil cylinder; check valves are installed in the positions, close to the oil cylinder, of a rod cavity oil path and the rodless cavity oil path; and an energy storage oil path is installed on the rodless cavity oil path of the oil cylinder and sequentially provided with a two-position two-way electromagnetic directional valve, a pressure sensor, an energy accumulator, a two-way gate valve and an overflow valve. According to the energy-saving hydraulic servo control system for the tyre vulcanizer opening and closing mold, the electromagnetic overflow valve is opened when the pressure of the system is too high, the effect that the pressure of the whole system is balancedis ensured, the pressure of the system is prevented from being too high, the electromagnetic overflow valve is opened for unloading when the pressure is too high, and the safety is high.

Description

technical field [0001] The invention belongs to the technical field of hydraulic control, in particular to an energy-saving tire vulcanizing machine mold opening and closing hydraulic servo control system. Background technique [0002] In the past few years, mechanical vulcanizing machines were mainly used in the market, but as mechanical vulcanizing machines are increasingly unable to meet the needs of users, hydraulic system control vulcanizing machines also appeared while mechanical vulcanizing machines were popularized and applied. However, since the superiority of the hydraulic system-controlled vulcanizing press over the mechanical vulcanizing press was not obvious at the beginning, and the hydraulic technology was not very mature at that time, the tire factory was not very suitable for the maintenance of the hydraulic vulcanizing press, so in a period of time Internal hydraulic vulcanizers have not been widely promoted like mechanical vulcanizers. [0003] However, w...

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Problems solved by technology

[0004] The traditional tire vulcanizing machine mold opening and closing hydraulic servo control system has low control precision, slow response, high energy consumption and poor safety

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