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Double-cylinder hydraulic ejection control system and method thereof

A control method and control system technology, applied in the field of presses, can solve problems such as inconvenient maintenance, confusion between working status and maintenance status, and abnormal oil circuit operation, so as to facilitate maintenance, reduce the difficulty of later maintenance, and improve the processing speed of workpieces Effect

Active Publication Date: 2019-01-15
JIANGSU YANGLI FORGING PRESS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This operation is easy to confuse the working state with the maintenance state, resulting in abnormal operation of the oil circuit, inconvenient maintenance, no oil circuit alarm detection, etc.

Method used

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  • Double-cylinder hydraulic ejection control system and method thereof
  • Double-cylinder hydraulic ejection control system and method thereof

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with specific embodiments.

[0035] Such as Figure 1-2 A dual-cylinder hydraulic ejection control system shown includes:

[0036] Main circuit unit: Three-phase 380V, 50Hz power supply is protected by air switch QF, respectively connected to the upper ends of four AC contactor contacts KM1-1, KM2-1, KM3-1, KM4-1, and AC contactor KM1-1 , KM2-1, KM3-1, and KM4-1 are connected to thermal relays FR1, FR2, FR3, and FR4 at the lower ends, and are protected by thermal relays FR1, FR2, FR3, and FR4 for overcurrent protection, and then respectively connected to four motors, respectively for the following Cylinder motor M1, upper cylinder motor M2, differential pressure motor M3, cooling motor M4;

[0037] Control circuit: Two phases of three-phase 380V, 50Hz power supply are connected to the transformer TC, and the output AC220V AC control power supply is connected to the PLC power supply terminal, and the ...

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Abstract

The invention discloses a double-cylinder hydraulic ejection control system in the field of a pressing machine. The system includes a main circuit unit and a main control unit, wherein the main circuit unit includes an upper cylinder motor and a lower cylinder motor which are connected with the power source through an AC contactor contact, the main control unit includes a control unit used for controlling the work process of the pressing machine, a detection unit used for detecting a stroke state of a pressing machine sliding block and sending the stroke state to the control unit, and an action unit used for receiving a control signal from the control unit, the upper cylinder motor and the lower cylinder motor are controlled by an AC contactor for operation, and the oil pressure in an upper cylinder and a lower cylinder is controlled by a solenoid valve. The system is advantaged in that workpiece forming of various specifications can be adapted to, according to the material thickness of the stamped workpiece, precise adjustment of the oil pressure of the upper and lower cylinders is set, and the system can be used in two-cylinder pressing machine control.

Description

technical field [0001] The invention relates to a press, in particular to a twin-cylinder press. Background technique [0002] In the prior art, the double-cylinder press manually controls the start and stop of the motor, and manually controls the connection and disconnection of the electromagnetic valve. This operation is easy to confuse the working state with the maintenance state, resulting in abnormal operation of the oil circuit, inconvenient maintenance, and no alarm detection of the oil circuit. The double-cylinder press includes an upper cylinder and a lower cylinder. The upper cylinder and the lower cylinder respectively inject oil into the two oil tanks through the motor of the upper cylinder and the motor of the lower cylinder, and control the ejection of the upper cylinder and the lower cylinder to adapt to the processing of different workpieces. Contents of the invention [0003] The purpose of the present invention is to provide a double-cylinder hydraulic e...

Claims

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Application Information

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IPC IPC(8): B30B15/16B30B15/26
CPCB30B15/16B30B15/166B30B15/26
Inventor 徐丽周锋陈晖董晓鹏夏璐丁义霍孟友张小俊孙凌宇
Owner JIANGSU YANGLI FORGING PRESS
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