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Automatic control equipment of double screw extrusion machine

A twin-screw extruder and automatic control device technology, which is applied in the field of twin-screw extruder automatic control devices, can solve problems affecting normal continuous operation, poor temperature control accuracy, and need to stop for repairs, so as to save cooling auxiliary equipment , Improve the temperature control accuracy, the effect of good technical effect

Inactive Publication Date: 2004-06-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is that there is poor temperature control accuracy in the previous twin-screw extruder technology, and it needs to be equipped with cooling auxiliary equipment, and when the control system fails, it needs to be shut down for repair, which affects the normal continuous operation. A kind of New automatic control device for twin-screw extruder

Method used

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  • Automatic control equipment of double screw extrusion machine
  • Automatic control equipment of double screw extrusion machine
  • Automatic control equipment of double screw extrusion machine

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Experimental program
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Embodiment 1

[0033] Attached figure 1 , attached figure 2 and attached image 3 The twin-screw extruder system set up has been running smoothly for more than a month without any failures. Even if the microcomputer fails (or shuts down the microcomputer), the normal production of the device will not be affected except for data recording and some alarms; if a smart instrument is damaged or does not work properly, the system can detect and alarm in time, and can be replaced in time (On-site simulation test has been done). During normal and stable operation, the temperature is set and controlled at about 200°C, and the temperature fluctuation is ±1°C.

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Abstract

The present invention relates to automatic controller for double-screw extruder, and aims at solving the problems of raising temperature control precision and making system to operate continuously. The present invention is one microcomputerized smart instrument comprise temperature input or output control part and in-situ analog monitoring and alarming part. The programmable controller processes the data concentratedly to realize the automatic control and is used in industrial production with double-screw extruder.

Description

technical field [0001] The invention relates to an automatic control device for a twin-screw extruder. Background technique [0002] The twin-screw extruder is mainly used in the production or intermediate tests of plastic mixing, filling, reinforcement, reaction, grafting and devolatilization. The control method is: industrial computer - lower computer - twin-screw extruder site various points. It can complete the automatic control of the whole system, including temperature control, display and alarm of each section; display and alarm of motor speed and load; display and alarm of melting pressure; data storage, printing and reproduction of historical data, etc. With the prolongation of use time, electronic products will inevitably fail. This machine keeps appearing the failure of the upper and lower computers, and the failure of the hard disk of the industrial computer. In the original control mode, once the above fault occurs, the whole sys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/40B29C48/92
CPCB29C47/92B29C48/92B29C2948/92704B29C48/40B29C2948/92895
Inventor 李煊张文德
Owner CHINA PETROLEUM & CHEM CORP
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