Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method

A control system and energy-saving technology, applied in the field of die-casting machines, can solve the problems of large waste and high energy consumption of the hydraulic system, and achieve the effects of noise reduction, energy saving and smooth movement

Inactive Publication Date: 2013-03-13
YIXING JIACHEN DIE CASTING MACHINE MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to design an environment-friendly and energy-saving electro-hydraulic control system for die-casting machines and to provide an energy-saving method for the problems of high energy consumption and large waste in the existing hydraulic system of die-casting machines

Method used

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  • Environmental-friendly energy-saving die-casting machine electrohydraulic control system and energy-saving method

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] like figure 1 shown.

[0018] An environment-friendly and energy-saving die-casting electro-hydraulic control system, which includes a large oil pump PU2 and a small oil pump PU1, a mold closing valve DR2 and a mold adjusting valve DR1. The mold valve DR2 is connected to the oil inlet channel of the mold adjusting valve DR1, and the outlet end of the large oil pump PU2 is also connected to the unloading valve A2, and the output end of the unloading valve A2 is connected to the oil inlet end of the energy storage device ACC3, and the energy storage The output end of the device ACC3 is respectively connected with the oil inlet channels of the clamping valve DR2 and the mold adjusting valve DR1 through the solenoid valve A3. The output end of the large oil pump PU2 is connected with a relief valve A1, and the output end of the relief valve A1 is ...

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Abstract

The invention relates to an environmental-friendly energy-saving die-casting machine electrohydraulic control system, which is characterized in that the system comprises a large oil pump (PU2), a small oil pump (PU1), a die closing valve (DR2) and a die adjusting valve (DR1), the output end of large oil pump (PU2) is respectively connected with the oil inlet passages of the die closing valve (DR2) and the die adjusting valve (DR1) through a solenoid valve (A5) and a proportional overflow valve (A4), an unloading valve (A2) is additionally connected at the outlet end of the large oil pump (PU2), the output end of the unloading valve (A2) is communicated with the oil inlet end of an energy storage device (ACC3), and the output end of the energy storage device (ACC3) is respectively connected with the oil inlet passages of the die closing valve (DR2) and the die adjusting valve (DR1) through a solenoid valve (A3). The environmental-friendly energy-saving die-casting machine electrohydraulic control system has the advantages that the motor power and the pump displacement are reduced by 50 percent, approximate 50-60 percent of energy can be saved, the action stability is high, the response sensitivity is high and the like.

Description

technical field [0001] The invention relates to a die-casting machine, in particular to a compressor hydraulic system, in particular to an environment-friendly and energy-saving die-casting machine electro-hydraulic control system and an energy-saving method with an energy storage device. Background technique [0002] At present, the hydraulic systems of traditional die-casting machines are all motor oil pump combinations composed of ordinary motors and quantitative pumps. In the hydraulic system of quantitative pumps, the oil pump motor provides constant flow at a constant speed. In recent years, it has only increased the pressure on the oil circuit. Proportional valve and flow proportional valve, and the pressure and flow required for work are adjusted by the pressure proportional valve and flow proportional valve, and the pressure or flow is controlled by adjusting the opening of the pressure or flow proportional valve. The excess hydraulic oil returns through the relief...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D17/32
Inventor 李安涛侯思伟
Owner YIXING JIACHEN DIE CASTING MACHINE MFG
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