Belt for a set of belt drums in a two-drum winder, and a two drum winder

A double-drum roll paper and belt-reel technology, which is applied in the direction of winding strip, thin material handling, transportation and packaging, etc., can solve the problem of uneven thickness, and achieve low thickness change rate, small stretch change and long service life. Effect

Active Publication Date: 2008-09-10
METSO PAPER INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Severe wear can lead to uneven thickness of the tape, which can further create problems during the winding process

Method used

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  • Belt for a set of belt drums in a two-drum winder, and a two drum winder

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Experimental program
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Embodiment Construction

[0021] In the following figures, parts corresponding to one another are identified with the same reference numerals, and parts according to the prior art are primed.

[0022] As shown in Figure 1, a double-drum reel, as is known in the art, comprises support drums 11', 15', a rear support drum 11' and a front support drum 15', shown in this figure In an embodiment, the front support drum 15' is formed by a set of belt pulleys comprising two guide rollers 12', 13' and a belt loop 20' arranged around said two guide rollers. On the double-drum reel, a roll of fibrous web, for example a roll of paper or cardboard, is wound up supported by a rear support drum 11' and the set of belt pulleys 15'.

[0023] As shown in FIG. 2A, when the belt 20' is bent during the winding process of the fiber web, since the bending occurs in the contact area of ​​the belt 20' and the fiber web roll 10' during the winding process, the outer layer of the belt 20' The length of the belt portion a' of 22...

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Abstract

The invention relates to a belt for a set of belt drums in a two-drum winder, which belt (20) comprises a support layer (21) that maintains the longitudinal tension of the belt (20), an outer layer (22) between the support layer (21) and an outer surface (23) of the belt (20) placed against a fibrous web roll (10) that is being wound on the two-drum winder, and an inner layer (25) between the support layer (21) and a surface placed against lead rolls (12, 13) of the set of belt drums (15) in the two-drum winder. The outer layer (22) of the belt (20) is thin, i.e. has a thickness of less than 3.5 mm when the belt is new and unused, and the outer layer of the belt (20) is manufactured of a wear-resistant material, such as rubber or elastomer.

Description

technical field [0001] The invention relates to a belt according to the preamble of claim 1 for a set of belt pulleys in a double-drum winder. [0002] The invention also relates to a double-drum reel according to the preamble of claim 5 . [0003] In a slitter-winder, the full paper web is longitudinally slit into individual webs at the cutting section, and the individual webs are wound onto user rolls at the winding section. In a winder, the partial web is wound onto a fibrous web roll around mandrels, and longitudinally successive mandrels are interlocked in place to form a mandrel chain by means of mandrel chucks positioned at both ends of the mandrel. In cut reels, double-drum reels are usually used as reels, in which the split web is wound onto a split web roll which passes over a support drum and fiber The nip formed between the web rolls is supported on two support drums. The backing drum is also available as a set of belt pulleys in which belt loops are placed arou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65H18/22B65H
CPCB65H18/22B65H2301/41486
Inventor 海基·弗尔
Owner METSO PAPER INC
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