Hydraulic system with fast injection loops of die casting machine

压铸机快压射回路液压系统

Abstract

The invention relates to a hydraulic system with fast injection loops of a die casting machine. The hydraulic system comprises an injection oil cylinder, a first stage of fast injection loop and a second stage of fast injection loop, wherein the first stage of fast injection loop and the second stage of fast injection loop are mutually independent and connected with each other in parallel, and the connected two ends of the first stage of fast injection loop and the second stage of fast injection loop are respectively connected with the rear chambers of the injection oil cylinder. Each of the first stage of fast injection loop and the second stage of fast injection loop uses an independent accumulator, and the first stage of fast injection loop and the second stage of fast injection loop are not interfere with each other in the working process. The pressure loss of the first stage of fast injection is reduced, and energy is saved. The first stage of fast injection does not consume the pressure oil of the second stage of fast injection accumulator, so that the pressure of the second stage of fast injection accumulator is not reduced, and therefore the speed demand of the second stage of fast injection can be beneficially ensured. The hydraulic system has the characteristics of being simple and reasonable in structure and energy-saving and being beneficial to ensuring the speed demand of the second stage of fast injection.
一种压铸机快压射回路液压系统,包括压射油缸,以及相互独立,且彼此并联连接的第一级快压射回路和第二级快压射回路,且第一级快压射回路和第二级快压射回路相接的两端分别连接压射油缸后腔。本发明的第一级快压射回路与第二级快压射回路均使用独立的储能器,工作时互不干扰,第一级快压射的压力损失降低,节约能源,第一级快压射不消耗第二级快压射储能器的压力油,保证了第二级快压射储能器的压力不降低,进而有利于保证第二级快压射的速度需求。其具有结构简单合理、节约能源、有利于保证第二级快压射速度需求的特点。

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Cited By (1)

    Publication numberPublication dateAssigneeTitle
    CN-105736492-AJuly 06, 2016刘湖南Hydraulic oil cylinder and oil way system thereof