Proportional Insert Pressure Relief System of Forging Hydraulic Press and Its Pressure Relief Method

Abstract

The invention discloses a pressure relief system and a pressure relief method for a proportional plug-in part of a forging hydraulic press, and relates to the technical field of presses, including: a pressure sensor for collecting oil pressure data in a main cylinder of a slide block of a forging hydraulic machine; a proportional plug-in The assembly is used to receive instruction information from the programmable logic controller, and adjust the opening of the spool according to the instruction information; the programmable controller is used to receive the oil pressure data, and send instructions to the proportional insert Information; wherein: the analog output port of the programmable controller is electrically connected to the proportional cartridge valve, and the analog input port of the programmable controller is electrically connected to the pressure sensor. By adopting the above technical scheme, the present invention has the characteristics of fast pressure relief and good stability.

Description

Technical field [0001] The invention relates to the technical field of presses, in particular to a pressure relief system for a proportional plug-in part of a forging hydraulic press and a pressure relief method thereof. Background technique [0002] With the increasing application range of forging hydraulic presses, the production of large-tonnage hydraulic presses has a wide range of applications and market prospects, and its process operations are becoming more and more complex. Therefore, the rapid and smoothness of the pressure-relieving process of the large-tonnage hydraulic presses on the slider is also Put forward higher requirements. Large hydraulic presses generally use an independent pressure relief valve block. The traditional pressure relief valve block consists of a complex hydraulic circuit with solenoid valves. The relief valve of this design hydraulic circuit is difficult to adjust and is not easy to adjust and modify, so use a A pressure relief method that reli...

AI Technical Summary

Problems solved by technology

Large hydraulic machines generally use an independent pressure relief valve block. The traditional pressure relief valve block is composed of a complex hydraulic circuit with a solenoid valve. The relief valve of this design hydraulic circuit is difficult to adjust and is not easy to adjust and modify. Therefore, a It is particularly important to overcome the phenomenon that the pressure relief time is long or the pressure relief has an impact by controlling the pressure relief method of the proportional plug-in with an analog electrical signal.

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