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A kind of winding device and winding method for preventing bopp film from running edge

A film and edge-running technology, used in thin material handling, transportation and packaging, and sending objects, etc., can solve problems such as increasing friction, and achieve the effects of increasing friction, increasing clearance, and reducing consumption

Active Publication Date: 2017-01-25
ZHANJIANG PACKAGING MATERIAL ENTERPRISES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a winding device and a winding method for preventing BOPP film from running sideways. The technical problem to be solved is to use corona equipment to improve the roughness of the film surface by using extremely weak corona treatment according to the prescribed operating procedures. , increase the friction, control the roller core and the outer edge running edge when winding the BOPP film, thereby reducing the product consumption caused by the running edge, improving the winding quality, and at the same time ensuring that the product quality will not decrease due to the film’s discoloration

Method used

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  • A kind of winding device and winding method for preventing bopp film from running edge

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Embodiment approach

[0018] Such as figure 1 It shows an embodiment of the winding device provided by the present invention to prevent the edge run of the BOPP film, including the cooling roller 1, the lower corona treatment roller 2, the upper corona treatment roller, and the cooling roller 1 arranged in sequence from front to back according to the running direction of the film. Handling roll 3 , tension roll 4 , contact roll 5 and take-up roll 6 . After the diaphragm comes out of the horizontal stretching machine, the temperature is very high. After being cooled by the cooling roller 1, and then corona treated by the corona treatment roller, it reaches the tension roller 4 for tension detection. Take up roll on the winding roller 6. The winding device is also provided with edge flattening rollers 7, nip rollers 8, and expansion wheels 9, etc. as required. They belong to well-known means in the industry. , Floating and other defects are not marked and explained in the figure.

[0019] The coro...

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Abstract

The invention provides a rewinding device and a rewinding method for preventing BOPP film from running sideways. A corona treatment device is set, including a high-frequency generator connected to the linear electrode and an ozone exhaust fan connected to the vicinity of the corona treatment roller; adjusting the distance between the linear electrode and the corona treatment roller, and setting the temperature of the cooling roller; At the beginning of double-station interchange of rolls, open the corona treatment device, let the linear electrode perform weak corona treatment on the film passing through the corona roller, and the ozone exhaust fan will suck away the ozone generated by the corona operation; Switch off the corona treatment unit at the end of the station change. The invention increases the friction between the films by applying weak corona treatment to the BOPP film, completely solves the problem of edge running between the roll core and the outer layer when changing rolls, and does not cause the problem of film discoloration and quality degradation.

Description

technical field [0001] The invention belongs to the technical field of film processing, and in particular relates to a winding device and a winding method for preventing BOPP film from running sideways. The special device and method are used to improve the production of special films with high smoothness, especially shrink films. The winding edge running phenomenon is very effective. Background technique [0002] Our company is a professional manufacturer of special BOPP films, including cigarette film, shrink film, heat-sealing film, aluminized film and other varieties. Because the surface of these films is relatively smooth, even both sides are very smooth, so it is easy to appear edge running (also called uneven end surface) during the winding process, and the edge running is mainly concentrated on the winding roller when the double station is exchanged. When the core and the outer layer of the film roll are exchanged at the double station, the tightness of the film roll...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65H37/00B29C71/00
Inventor 周先进王胜吴建全
Owner ZHANJIANG PACKAGING MATERIAL ENTERPRISES
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