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Hydraulic overload protective system capable of setting tonnages and working method thereof

A technology of overload protection and overload protection valve, which is applied in the direction of presses, manufacturing tools, etc., can solve the problems that cannot meet the needs of setting different overload protection tonnages, it is difficult for users to obtain relevant information, and cannot be automatically set, etc., so as to achieve convenience Maintenance replacement and selection of spare parts, cost reduction, effect of green equipment industry

Active Publication Date: 2015-03-11
DALIAN DESIGN INST CO LTD CHINA FIRST HEAVY IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing overload protection systems cannot be automatically set and can only be set for a single tonnage; and the selected overload protection valve is a hydraulic valve, and the cost is very high
Overseas manufacturers who have done overload protection systems design overload protection systems with their own unique overload protection valves. It is difficult for users to obtain relevant information, which brings inconvenience to equipment maintenance.
With the development of the automobile industry, the traditional overload protection system can no longer meet the needs of automobile manufacturers to set different overload protection tonnages for different specifications of molds

Method used

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  • Hydraulic overload protective system capable of setting tonnages and working method thereof

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Embodiment Construction

[0021] The present invention will be further described below in conjunction with the accompanying drawings. Such as figure 1 As shown, a hydraulic overload protection system with set tonnage includes air filter A1, pneumatic proportional pressure regulating valve A3, manual ball valve 5, overload protection valve 6, hydraulic cushion 7, pressure sensor 12, safety valve A13, cut-off type Solenoid valve 14, pneumatic pump 15, pneumatic proportional pressure regulating valve B16, air filter B17, gear pump motor unit 18, shock absorber throat A19, oil suction filter A20, safety valve B21, shock absorber throat B22 and oil suction filter B23, It also includes a controller and a touch screen; one end of the air filter A1 is connected to the factory gas pipeline, and the other end is connected to the one-way valve A2, the pneumatic proportional pressure regulating valve A3, the manual ball valve 5, the overload protection valve 6 and the hydraulic pad 7 A pressure gauge A4 is instal...

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Abstract

The invention discloses a hydraulic overload protective system capable of setting tonnages and a working method thereof. The system comprises a pneumatic proportional pressure regulating valve A, an overload protective valve, a hydraulic cushion, a pressure sensor, a shutoff type electromagnetic valve, a pneumatic pump, a pneumatic proportional pressure regulating valve B, a gear pump motor set, a controller and a touch screen, wherein the pneumatic proportional pressure regulating valve A is connected with the hydraulic cushion via the overload protective valve; and the hydraulic cushion is also respectively connected with the pneumatic pump and the pump gear motor set. The hydraulic overload protective system has the advantages that overload protective pressure can be remotely set in a multistep manner, air pressure needed by corresponding overload protective valves is calculated through calculating overload protective tonnages needed by different molds, and the pneumatic proportional pressure regulating valve A on an air cavity side of the overload protective valve is correspondingly regulated, so remote multistep setting of the air pressure is realized; and pressure parameters can be well preset in the electric controller by aiming at different mold numbers, and the tonnages are automatically selected according to the numbers when the molds are replaced, so the production efficiency is improved.

Description

technical field [0001] The invention relates to an overload protection control technology in a mechanical press, in particular to a set tonnage hydraulic overload protection system and a working method thereof. Background technique [0002] Hydraulic overload protection systems are widely used in overload control in mechanical presses. The existing overload protection systems are all overload protection systems that cannot be automatically set and can only be set for a single tonnage; and the selected overload protection valve is a hydraulic valve, and the cost is very high. Overseas manufacturers who have done overload protection systems design overload protection systems with their own unique overload protection valves. It is difficult for users to obtain relevant information, which brings inconvenience to equipment maintenance. With the development of the automobile industry, the traditional overload protection system can no longer meet the needs of automobile manufactur...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B15/16B30B15/28
Inventor 蔡喜刘苏李洪伟王爱国喻宝林
Owner DALIAN DESIGN INST CO LTD CHINA FIRST HEAVY IND
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