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[CN 201611033366.4] Electro-hydraulic Control Pressure Machinery with Mechanical Signal Reversal
[CN 201611033366.4] Electro-hydraulic control pressure machinery for mechanical signal commutation Title: Electro-hydraulic control pressure machinery for mechanical signal commutation Application Number: CN 201611033366.4 Applicant: Tianjin Shaohui Technology Co., Ltd. Application Date: 2016-11-22 Patent Type: Invention Application The present invention discloses an electro-hydraulic control pressure machinery for mechanical signal commutation, including an actuator and a hydraulic control mechanism; The hydraulic control mechanism includes: the first inlet pipeline and the second inlet pipeline; pressure reducing valve; three-position five-way reversing valve; booster mechanism; linkage mechanism; hydraulic buffer control mechanism. The pressure boosting mechanism of the hydraulic control mechanism cooperates with the hydraulic buffer control mechanism so that when the stamping rod enters the third stroke section to cause elastic-plastic deformation of the workpiece, the pressure continues to increase, so as to meet the gradually increasing pressure of the workpiece during elastic-plastic deformation. Requirements, due to the hydraulic control mechanism of the present invention, the stamping rod conforms to the pressure changes of the three stroke sections, so that the rigidity of the stamped workpiece is better, and the scrap rate of stamping workpieces is low. The three-position five-way reversing valve and the stamping rod are linked through the linkage mechanism.
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