Hydraulic control circuit and method used for injection machine and capable of realizing high-speed and high-precision injection
A control circuit and injection molding machine technology, applied in the field of injection molding machines, can solve the problems of limited flow rate of a single plate servo valve, poor return accuracy of the circuit, high response requirements, etc., to achieve improved brake response, fast injection response, and accurate positioning Effect
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[0020] The following are specific embodiments of the present invention combined with the accompanying drawings to further describe the technical solutions of the present invention, but the invention is not limited to these embodiments.
[0021] Such as figure 1 As shown, a high-speed and high-precision injection molding machine hydraulic control circuit is characterized by: an accumulator 100, a charging control valve group 200, a pressure relief valve group 300, a discharge control valve group 400, and a control injection molding machine The first servo valve 500 of the injection cavity and the second servo valve 600 that control the ejection and withdrawal cavity of the injection molding machine. The pressure relief valve group 300 is used to relieve the pressure of the accumulator during and after it stops working to prevent its pressure from being too high In the event of a dangerous event, the charging control valve group 200 is connected to the oil inlet of the accumulator ...
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