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Winding device and method for improving appearance of cast film

A winding device and casting film technology, which is applied in the direction of winding strips, transportation and packaging, thin material processing, etc., and can solve problems such as indentation, air bubbles, and bursting ribs

Pending Publication Date: 2021-01-08
罗文峰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the film is rolled, there will be various defects: burst ribs, bubbles, wrinkles, indentations, wrinkles and bubbles at the bottom of the tube, etc., which will affect the use of the film in high-demand fields
These defects are produced under the premise of uniform thickness of the film surface, the main reason is that there is a problem with the winding method

Method used

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  • Winding device and method for improving appearance of cast film
  • Winding device and method for improving appearance of cast film
  • Winding device and method for improving appearance of cast film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The content of the present invention will be described below in conjunction with specific embodiments.

[0024] The traditional technology film is non-stop when winding, the specific operation is as follows:

[0025] Operation 1: if Picture 1-1 .1, start winding;

[0026] Operation 2: if Picture 1-1 As shown in .2, when the number of meters of winding film reaches the length of changing rolls, the winding pressure roller moves to the left; the winding shaft rotates by itself through power to maintain tension and not unwind;

[0027] Operation 3: if Picture 1-1 As shown in .3, the winding reel frame rotates clockwise, and the rewinding reel with film rotates by itself through power to maintain tension and not unwind;

[0028] Operation 4: if Picture 1-1 As shown in .4, the winding pressure roller moves to the right. When it is pressed to the core on the winding shaft B (the core is coated with glue or double-sided tape), the film rolls on the core, and the film ...

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Abstract

The invention discloses a winding device for improving the appearance of a cast film. The winding device sequentially comprises an extruder, a melt filter, a die head, a cooling roller, a transition roller, a thickness gauge, a side cutting station, a corona device, a storage mechanism, a tensioning roller, a sliding cutter, a winding compression roller, a film winding shaft and a winding shaft frame from left to right. The cooling roller is located under the die head, the linear speed of the cooling roller is the same as that of the transition roller, and tension sensors are arranged at the two ends of the storage mechanism. By improving the operation method of a winding system of a cast film production line, the aims that the effect that a wound pipe bottom film is free of lotus leaf edges, wrinkles and bubbles is achieved, the winding quality is improved, the film quality is improved, and waste of the pipe bottom film is reduced are achieved.

Description

technical field [0001] The invention relates to the technical field of film and winding equipment, in particular to a winding device and method for improving the appearance of cast film. Background technique [0002] Cast film is divided into two types: single-layer cast film and multi-layer co-extrusion cast film. The performance of single-layer cast film is relatively simple; the selection of materials for multi-layer co-extruded cast film is wider than that of single-layer film. Through design, materials that meet the requirements of each layer can be selected individually, and different functions and uses can be endowed to the film. Compared with blown film, it is characterized by fast production speed, high output, and good film transparency, gloss, and thickness uniformity. At the same time, because it is a flat extruded film, subsequent processes such as printing and compounding are extremely convenient, so it is widely used in packaging and logistics applications fo...

Claims

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Application Information

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IPC IPC(8): B65H19/24B65H19/30B65H23/26B65H18/26B65H19/26B65H19/28B65H20/34
CPCB65H18/26B65H19/24B65H19/26B65H19/283B65H19/30B65H20/34B65H23/26
Inventor 罗文峰
Owner 罗文峰
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