Weighing and weight losing integrated extrusion control system and method

A control system and integrated technology, applied in the field of weighing and weight loss integrated extrusion control system, can solve the problems of short service life of extruder screw, inaccurate raw material ratio, unstable product output, etc., to solve the problem of output decline , improve quality, improve accuracy and stability

Active Publication Date: 2016-04-13
东莞市帝菲尼机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polyester film is a polymer plastic film made of polyethylene terephthalate as a raw material, which is made into a thick sheet by extrusion and then biaxially stretched. At present, the polyester film production equipment mainly consists of the above Hopper, storage bin, metering valve, mechanical agitator mixer, extruder and traction device, etc., but the existing polyester film production equipment has inaccurate raw material ratio and extruder screw wear, which leads to the output of extruded products. Instability, low product precision, failure to meet the requirements of process parameters, short service life of extruder screw and waste of raw materials, etc.

Method used

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  • Weighing and weight losing integrated extrusion control system and method
  • Weighing and weight losing integrated extrusion control system and method

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Effect test

Embodiment 1

[0028] Embodiment 1. A weight loss integrated extrusion control system. Combine below figure 1 The system provided by the present invention is described in detail.

[0029] see figure 1 , the system provided by the present invention includes a human-computer interaction unit, a PLC controller, a raw material proportioning unit, a weighing pan control unit, a motor control unit, an extrusion speed control unit, a traction speed control unit, an alarm circuit unit, a storage tank, a metering Valves, weighing pans, load cells, loss-in-weight buckets, loss-in-weight sensors, stirring motors, extruders, traction units, extrusion drives and traction frequency converters.

[0030] There are multiple storage tanks, each storage tank stores a kind of raw material, and the multiple storage tanks correspond to a plurality of metering valves, and each metering valve is installed at the bottom of the corresponding material storage tank. The weighing pan is located directly below the plu...

Embodiment 2

[0053] Embodiment 2. A weight loss integrated extrusion control method. Combine below figure 2 The method provided by the present invention is described in detail.

[0054] see figure 2 , S1. The PLC controller obtains the proportioning weight of various raw materials and the set speed value of the traction device according to the input product setting parameters, and sends the proportioning weight of the various raw materials to the raw material proportioning unit, and sends The set speed value of the traction device is sent to the traction speed control unit, wherein the product set parameters at least include the set output value of the extruder within a set time.

[0055] Specifically, the human-computer interaction unit inputs product setting parameters to the PLC controller, and the product setting parameters at least include the set output value of the extruder within the set time, and the PLC controller sets the parameters according to the product Obtain the propo...

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Abstract

The invention provides a weighing and weight losing integrated extrusion control system and method. The system conducts automatic matching on raw materials through a PLC, a raw material matching unit and a weighing sensor, the rotating speed of a threaded rod of an extruder is regulated through the PLC, an extrusion rotating speed control unit and an extrusion driver so that raw materials can be automatically extruded, the yield of extruded products is controlled to reach the set yield value and be kept stable, the rotating speed of a traction device is regulated through the PLC, a traction rotating speed control unit and a traction frequency converter so that automatic traction can be achieved for the extruded products, and the thickness or the gram weight of the extruded products can be kept stable. By means of the weighing and weight losing integrated extrusion control system and method, raw materials can be automatically and precisely matched, the quality of the products is improved, it is ensured that the yield of the extruded products is stable, the service life of the threaded rod of the extruder is prolonged, the stability of the thickness or gram weight of the extruded products is ensured, and the accuracy and stability of the products are improved.

Description

technical field [0001] The invention relates to the technical field of polyester film production equipment, in particular to a weight-loss integrated extrusion control system and method. Background technique [0002] Polyester film is a polymer plastic film made of polyethylene terephthalate as a raw material, which is made into a thick sheet by extrusion and then biaxially stretched. At present, polyester film production equipment mainly consists of the above Hopper, storage bin, metering valve, mechanical agitator mixer, extruder and traction device, etc., but the existing polyester film production equipment has inaccurate raw material ratio, and the wear of the extruder screw leads to the output of extruded products. Instability, low product precision, failure to meet the requirements of process parameters, short service life of extruder screw, and waste of raw materials. Contents of the invention [0003] The technical problem to be solved by the present invention is ...

Claims

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Application Information

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IPC IPC(8): B29C47/92B29C47/10B29C47/34B29C48/355B29C48/92
CPCB29C48/286B29C48/355B29C48/92B29C2948/9258B29C2948/92676B29C2948/92828B29C2948/92885B29C2948/92933
Inventor 李志刚
Owner 东莞市帝菲尼机械科技有限公司
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