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Precontrol algorithm for film tracting machine rolling perimeter

A thin-film, perimeter technology, applied in sequence/logic controller program control, electrical program control and other directions, can solve the problems of high sensor detection accuracy, poor anti-interference ability, affecting product quality, etc., to ensure stability performance, ensure product quality, and ensure the effect of quality

Active Publication Date: 2009-02-04
上海德重科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantage is that once the system is disturbed, the ultrasonic signal will be distorted, the signal of the tension sensor is analog, and the anti-interference ability is poor, the system is prone to large fluctuations, and its fluctuation value can reach 20-40kg, which directly affects the product. the quality of
Moreover, the detection accuracy of the sensor is extremely high, which undoubtedly greatly increases the cost of the product.

Method used

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  • Precontrol algorithm for film tracting machine rolling perimeter
  • Precontrol algorithm for film tracting machine rolling perimeter

Examples

Experimental program
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Embodiment

[0016] Such as figure 1 As shown, it is a structural schematic diagram of a film drafting machine. The film drafting machine is composed of an unwinding device and a motor 1, a tension roller 2, a servo motor 3 of the first hot drafting roller, a first hot drafting roller 4, a second The servo motor 5 of the second hot drafting roller, the second hot drafting roller 5, the servo motor 7 of the third hot drafting roller, the third hot drafting roller 8, the servo motor 9 of the fourth hot drafting roller, the fourth The thermal drafting roller 10, the heat conduction oil heating device 11, the operating table 12, the electrical control cabinet 13, the winding device servo motor 14, the distance meter 15, the encoder 16 and the fuselage 17 are composed. The unwinding device, motor 1 and tension roller 2 are installed on the left end of the fuselage 17, the servo motor 3 of the first hot draft roller is connected to the first hot draft roller 4, and the servo motor 5 of the secon...

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Abstract

Characters of the invention are that according to mathematical model based on functional relation among linear velocity, angular velocity, and perimeter of rotary body, system program controls angular velocity of collecting device till tension device is stopped since the roll of thin film is finished so as to guarantee stability, reliability of system, and guarantee quality of product. Advantages are: reducing accuracy specification of distance measuring equipment greatly, saving cost of facility, raising precision of control system 20 times, ensuring quality of user product.

Description

technical field [0001] The invention relates to a method for pre-controlling the winding circumference of a film drafting machine, which uses an ultrasonic rangefinder to automatically measure the film winding diameter and control the winding angular velocity. Machine technology field. Background technique [0002] At present, all film drafting machines are imported, and the processing method is: the fourth hot roller drafting servo is used as the main speed setting, and the other five servos track the speed synchronization of the main machine through the digital frequency cascade bus of the servo itself. The film constant tension winding control is: the electric signal of the ultrasonic automatic measurement of the film winding circumference is sent to the servo controller, through the servo processing, and then superimposed with the host speed, and then the signal fed back by the tension sensor is sent to the servo controller , and then compared with the tension given val...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/05
Inventor 胡楚江刘杰张勇军袁斌
Owner 上海德重科技有限公司