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 the problems of needing to stop for repair, affecting normal continuous operation, and poor temperature control accuracy, so as to improve temperature control accuracy, Eliminate cooling auxiliary equipment, the effect of good technical effect
A twin-screw extruder and automatic control device technology, which is applied in the field of twin-screw extruder automatic control devices, can solve the problems of needing to stop for repair, affecting normal continuous operation, and poor temperature control accuracy, so as to improve temperature control accuracy, Eliminate cooling auxiliary equipment, the effect of good technical effect
CN1217783CInactive Publication Date: 2005-09-07CHINA PETROLEUM & CHEM CORP +1
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Embodiment 1
[0033] Attach figure 1 , Attached figure 2 And image 3 The set of twin-screw extruder system 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 (A field 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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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 the mixing, filling, reinforcement, reaction, grafting and devolatilization of plastics. Its control method is: industrial computer-lower computer-twin screw extruder site Various points. It can complete the automatic control of the entire system, including the control, display and alarm of each section of temperature; display and alarm of motor speed and load; display and alarm of melting pressure; data storage, printing and historical data reproduction, etc. As the use time increases, electronic products will inevitably fail. This machine continues to show up and down machine shutdown failures, industrial computer hard disk failures, etc. In the original control mode, once the above failure occurs, the entire system will stop. In addition...
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Patent Timeline
07 Sep 2005
Publication
CN1217783C
- IPC
- B29C48/40; B29C48/92
- CPC
- B29C48/92; B29C2948/92704; B29C48/40; B29C2948/92895
- Inventors
- 李煊; 张文德