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Tension stability control system for film winding conveyance

A stable control and film winding technology, which is applied in the direction of winding strips, thin material handling, transportation and packaging, etc., to achieve the effect of high control precision and small tension fluctuation

Inactive Publication Date: 2012-07-04
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, multi-layer heterogeneous films have higher requirements on the stability of tension, which makes the tension control system face new challenges and requires higher control accuracy

Method used

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  • Tension stability control system for film winding conveyance
  • Tension stability control system for film winding conveyance
  • Tension stability control system for film winding conveyance

Examples

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Embodiment Construction

[0020] refer to figure 1 , a film winding and conveying tension stabilization control system, mainly includes a discharge roller 11, a driving pair of rollers 17, a driven pair of rollers 15, a tension roller 16 and a tension controller 7. The discharge roller 11 is composed of a material roll, an air shaft, and a magnetic powder brake 5. The material roll is fixed on the air shaft, and the end of the air shaft is connected to a magnetic powder brake. The magnetic powder brake is controlled by a magnetic powder controller 5, and the required discharge tension command is 1 As the input of the magnetic powder controller 5, the tension control of the discharging module adopts an open-loop control method. The active counter-roller 17 and the driven counter-roller 15 are driven by servo motors with 13-bit encoders. The amplifiers 9 and 10 are respectively configured by servo motors. The upper device of the amplifiers is realized by motion control card channels 6 and 8. Send the sp...

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Abstract

The invention provides a tension stability control system for film winding conveyance, which comprises a feeding roller, paired driving rollers, paired driven rollers, a tension roller and a tension controller, wherein the feeding roller is used for uncoiling a coiled flexible film, the paired driving rollers are used for drawing the film, the paired driven rollers are used for assisting the paired driving rollers in drawing the film under control of the tension controller and are used for keeping tension stable, the tension roller is provided with a tension sensor for detecting tension during conveyance of the film, and the tension controller is used for performing tension closed-loop control according to tension acquired by the tension sensor. Output signals of closed-loop control serve as compensation of operation planning commands of a driving motor for the paired driven rollers, and further the rotation speed of the paired driven rollers is controlled to ensure stability of the tension. By the aid of a cascade control system formed by the tension roller, tension amplification filtering and driving compensation, low tension during flexible film conveyance can be effectively controlled, control precision is high, and the tension stability control system is applicable to low-tension conveyance of ultrathin and flexible hetero-structure films.

Description

technical field [0001] The invention relates to a stable tension control system for film winding and conveying, in particular, an adjustable and constant high-precision tension control system for unwinding and conveying in the process of flexible film roll-to-roll transport, and is especially suitable for tension control systems with relatively high tension. Equipment for low tension demand working conditions with high control precision. Background technique [0002] The stable transportation of flexible thin films is one of the key processes in the preparation of flexible electronics. As the delivery objects, RFID electronic tag production equipment and fuel cell production lines all involve a variety of ultra-thin, flexible, and structurally heterogeneous films. The conveying of ultra-thin flexible film is different from conventional tension conveying. In order to prevent the film from breaking and excessive deformation, the system cannot use the method of increasing the ...

Claims

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Application Information

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IPC IPC(8): B65H23/195B65H26/04
Inventor 尹周平陈建魁邵琳熊有伦
Owner HUAZHONG UNIV OF SCI & TECH
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