Tension control system of plastic packaging film production line

A technology of tension control and packaging film, which is applied in the field of plastic extrusion film blowing machine equipment, can solve the problems of excessive stretching, unwinding, and low degree of automation, and achieve the effect of improving product quality and precision, and running smoothly

Inactive Publication Date: 2009-05-06
恒力石化股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Domestic plastic extrusion blown film machine equipment is more common for packaging film processing, but the accuracy and reliability of the tension control system during processing directly affect the quality of the film and the final coiling effect (film breakage, excessive stretching caused by excessive tension) Stretching and other pr

Method used

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  • Tension control system of plastic packaging film production line
  • Tension control system of plastic packaging film production line

Examples

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Embodiment Construction

[0012] Below in conjunction with accompanying drawing, the present invention will be described in further detail:

[0013] Such as figure 1 The tension control system of the plastic packaging film production line shown is composed of three tension sections connected in series, one tension section is between the upper traction 1 and the lower traction 10, one tension section is between the lower traction 10 and the friction coil 8, and the friction coil 8 to The center coiling 7 is another tension section, the upper traction motor, the lower traction motor and the friction coiling motor are respectively given the speed given value, and the lower traction motor, the friction coiling motor and the center coiling motor are respectively given the tension given value , the given value and feedback value of each tension section are sent to the controller for PID calculation, and the controller sends control signals to implement the control of different tension requirements of the thr...

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Abstract

A tension control system in plastic packaging film production line consists of three tension sections connected in series. One tension section is between upper traction and lower traction; another tension section is between the lower traction and friction coil; and the last tension section is between the friction coil and center coil. An upper traction motor, a lower traction motor and a friction coiling motor respectively have a specified value of a datum value, the lower traction motor, the friction coiling motor and a center coiling motor respectively have a specified value of given tension. Each tension section specified value and feedback value are both transmitted to a controller for PID operation. The controller transmits control signals to implement the control over the three tension sections with different tension requirements. By implementing the control over separate sections according to different tension requirements, the invention leads to the overall speed linkage of the whole machine as well as stable operation, has no phenomena such as membrane breaking, excessive stretch caused by oversize tension, as well as membrane stacking, loose winding and the like caused by undersize tension, further improves the quality and precision of product and reaches the production line with advanced international standard.

Description

1. Technical field: [0001] The invention relates to plastic extrusion film blowing machine equipment, in particular to a tension control system for film blowing machine packaging films. 2. Background technology: [0002] Domestic plastic extrusion blown film machine equipment is more common for packaging film processing, but the accuracy and reliability of the tension control system during processing directly affect the quality of the film and the final coiling effect (film breakage, excessive stretching caused by excessive tension) Stretching and other problems, too small tension will cause problems such as film stacking and unwinding). At present, there are many types of tension and coiling control systems in the plastic machine blown film unit industry, and the degree of automation is more or less low, and the linkage speed regulation effect is not good. , Poor coiling effect and other issues. 3. Contents of the invention: [0003] The purpose of the present invention ...

Claims

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Application Information

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IPC IPC(8): B29C55/28
Inventor 闫志国任允通于洪涛浦松贾连东
Owner 恒力石化股份有限公司
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