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[CN 202110876574.5] A Return Control Method of Indirect Thermoforming Triplex Hydraulic Press for Reducing Energy Consumption
[CN 202110876574.5] A Return Control Method for Indirect Thermoforming Three-cylinder Hydraulic Press to Reduce Energy Consumption Title: A Return Control Method for Indirect Thermoforming Three-cylinder Hydraulic Press to Reduce Energy Consumption Application Number: CN 202110876574.5 Applicant: Zhejiang University Application Date: 2021-7-30 Patent Type: Application for the Invention The present invention discloses a return control method for indirect thermoforming three-cylinder hydraulic press to reduce energy consumption. The return of the indirect thermoforming three-cylinder hydraulic machine is divided into three stages: fast return, slow return and micro-movement return. Without changing the number of pumps and motor power, by optimizing the electro-hydraulic control of the indirect thermoforming three-cylinder hydraulic machine The software and hardware of the system use hydraulic servo valves to control the flow and pressure of the oil to improve the acceleration of the fast return stage, realize the slope and harmonic function change of the speed of the hydraulic press slider in the slow phase of the return turn. The invention refines the return of the indirect thermoforming three-cylinder hydraulic press into three stages, improves the working efficiency of the hydraulic press and the control accuracy of the slider position of the hydraulic press, avoids the impact and vibration at the end of the return, reduces the noise of the hydraulic press, and improves the working environment.
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