Method in reeling of fiber webs and reel-up

A technology of coiling device and fiber web, which is applied in the directions of transportation and packaging, winding strips, thin material processing, etc., and can solve the problems of complex, expensive and inflexible prices of devices

A technology of coiling device and fiber web, which is applied in the directions of transportation and packaging, winding strips, thin material processing, etc., and can solve the problems of complex, expensive and inflexible prices of devices

CN102815564AInactive Publication Date: 2012-12-12VALMET TECH OY
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  • Method in reeling of fiber webs and reel-up
  • Method in reeling of fiber webs and reel-up
  • Method in reeling of fiber webs and reel-up

Examples

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Embodiment Construction

[0025] In the following description and drawings, unless otherwise stated, the same reference numerals refer to similar components, and it should be understood that these examples are open to modification in order to adapt to different uses within the framework of the present invention and conditions.

[0026] The coiling device 10 is schematically shown in the figures. In the reel-up device 10, the full-width fiber web from a previous processing step (e.g. from the dryer section of a fiber web machine) The material is wound around the winding shaft 11 to the parent roll 12. From a tenter roll 16 a fibrous web W is directed to a reel-up device 10 . In the figures, the directions of rotation of the mandrel 15, the take-up shaft 11 and the tenter roll 16 are indicated by arrows in the corresponding figure elements.

[0027] Figure 1A The reel-up is shown schematically in a threading phase with a typical upper draw, in which the start of the fibrous web W is guided from the ...

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Abstract

The invention relates to a method in reeling of fiber webs and a reel-up (10), in which method the web is reeled by a reeling cylinder (15) of a reel-up into a parent roll (12, 14) around a reeling shaft (11) by means of a reeling nip formed between the reeling cylinder and the parent roll (14) to be wound around the reeling shaft. In the method the reeling draw is chosen between at least two alternatives of threading routes around the reeling cylinder (15) according to the need of rotational direction of further processing of the parent roll (12, 14) to be reeled such that the web is directed to one of at least two threading routes. The invention also relates to a reel-up for reeling of fiber webs, which reel-up (10) comprises a reeling cylinder (15), a reeling nip formed between the reeling cylinder and parent roll (14) to be wound around a reeling shaft (11), a roll (16) preceding the reeling cylinder (15). In the reel-up the reeling cylinder and the roll (16) preceding the reeling cylinder comprise means for changing their direction of rotation and that the reel-up further comprises at least two draws, one upper draw and one lower draw, for directing the fiber web in the reel-up.

Description

technical field [0001] The invention generally relates to the coiling of a fibrous web in a fibrous web machine. In particular, the invention relates to a method of winding up a fibrous web. The invention also relates to a take-up device for a fiber web. Background technique [0002] It is known that fibrous webs, such as paper or board webs, are manufactured in machines while forming fibrous web production lines which may be several hundred meters long. Modern paper machines are capable of producing over 450,000 tons of paper per year. The speed of the paper machine can exceed 2000m / min, and the width of the paper web can exceed 11 meters. [0003] It is known from the prior art that a fiber web production process usually includes an assembly formed of a plurality of devices arranged in succession in a production line. A typical production and processing line consists of a headbox, wire section, press section followed by a drying section and take-up. The production and...

Claims

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Application Information

Patent Timeline
12 Dec 2012
Publication
CN102815564A
IPC
B65H18/08
CPC
B65H19/2238; B65H2801/84; B65H2403/942; B65H2301/41423; B65H2301/41414
Inventors
泰波·科乔; 珀特里·恩瓦尔德