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Monitoring system of metal extrusion hydraulic press

A monitoring system and metal extrusion technology, applied in the field of hydraulic machinery, can solve problems affecting the monitoring of metal extrusion hydraulic presses, the inability to accurately control the speed, stroke and pressure of the press, and the impact on the precision control of hydraulic presses, so as to improve control accuracy and production. Efficiency, module reduction, and cost reduction effects

Inactive Publication Date: 2005-06-01
TIANJIN TIANDUAN PRESS CO LTD
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Problems solved by technology

[0002] At present, the known hydraulic press control systems are touch screen + PLC mode. This mode is only to input (display) some process parameters on the touch screen, such as: preset stroke upper and lower limit, holding pressure value, etc., and the data in PLC is single Point transmission, unable to precisely control the speed, stroke and pressure during the operation of the press
This technical defect affects the monitoring of the metal extrusion hydraulic press and affects the precision control of the hydraulic press

Method used

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  • Monitoring system of metal extrusion hydraulic press
  • Monitoring system of metal extrusion hydraulic press

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Embodiment Construction

[0020] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

[0021] refer to figure 1 , figure 2 . The metal extrusion hydraulic press monitoring system, the connection between the industrial computer and the hydraulic press is shown in the figure. Insert the two optically isolated RS232 / 485 communication cards (Ci-132i) and Kangtuo analog output board (IPC5476B output 4 channels 4-20mA) into the main board of the industrial computer. The optically isolated communication card is set to the RS485 interface mode. The analog output board is set to output signal 4-20mA. Connect three pressure digital displays (SWP-C403-31-12-HL-P RS485 interface) that respectively display the slider pressure, feeding cylinder pressure, and ejector cylinder pressure in parallel to display the slider stroke and the eject...

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Abstract

The present invention is the monitoring system for metal extruding hydraulic press and belongs to the field of hydraulic machinery technology. The monitoring system consists of industrial control computer, display terminal, controller, hydraulic press sensor and rotary coder. Structurally, the monitoring system features that the industrial control computer is connected with the display terminal and the programmable controller; and that the industrial control computer mainboard is provided with light isolated communication card connected with the digital display of pressure and the digital display of stroke and analog amount output card connected with proportional amplifier board for controlling the proportional variable pump of the hydraulic press. The present invention has stepless digital control of speed, stroke and pressure of hydraulic press, no PLC module and lowered production cost.

Description

technical field [0001] The invention belongs to the technical field of hydraulic machinery, in particular to a monitoring system for a metal extrusion hydraulic machine. Background technique [0002] At present, the known hydraulic press control systems are touch screen + PLC mode. This mode is only to input (display) some process parameters on the touch screen, such as: preset stroke upper and lower limit, holding pressure value, etc., and the data in PLC is single Point transmission, unable to precisely control the speed, stroke and pressure during the operation of the press. This technical defect affects the monitoring of the metal extrusion hydraulic press and affects the precision control of the hydraulic press. Contents of the invention [0003] The invention provides a metal extrusion hydraulic press monitoring system to solve the technical problems in the known technology. [0004] The metal extrusion hydraulic press monitoring system is equipped with an analog o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B15/26G05B19/05
Inventor 黄菁
Owner TIANJIN TIANDUAN PRESS CO LTD
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