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Device for transferring a web-like material in a fiber web machine and a fiber web machine

A fiber web machine and web-shaped technology, which is applied in the field of devices for transferring web-shaped materials, and can solve problems such as loss of transmission force

Active Publication Date: 2014-09-03
VALMET TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a major part of the transmitted force formed by blowing air is lost

Method used

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  • Device for transferring a web-like material in a fiber web machine and a fiber web machine
  • Device for transferring a web-like material in a fiber web machine and a fiber web machine
  • Device for transferring a web-like material in a fiber web machine and a fiber web machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Figure 1a A side view of the press section of a fiber web machine is shown. Fiber web machines include, for example, paper and board machines. The current trend is to use closed transfers in the press section, in which case, in addition to the web, tails cut from the web are supported essentially all the way through the press section. In the example of application, however, the closure transfer is interrupted at the central roll 10, from where the tailings are run down for the interrupted treatment. When continuing tail threading from this position, the tail must first be cut and guided to the subsequent tail threading device. In the position shown, the tailings are guided into the nip formed by the press fabric 11 and guide rolls 12 . In addition to this arrangement, the device according to the invention can be arranged in association with, for example, an upper roll 13 with a separate press. exist Figure 1a , the location of the device is indicated by a circled c...

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PUM

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Abstract

The invention relates to a device for transferring a web-like material in a fiber web machine. The device includes an air connection (14) and openings (16) arranged on a wall (15) defining the air connection for forming air blows that are parallel to the travel direction of the web-like material. The device also includes a transfer surface (17) for creating a vacuum effect with air blows and thereby transferring the web- like material. The openings (16) are formed on the transfer surface (17) and the angle a between the blow direction of the openings (16) and the transfer surface (17) is 15 -30°. The invention also relates to a fiber web machine.

Description

technical field [0001] The invention relates to a device for transferring a web material in a fiber web machine, the device comprising: [0002] - air connections, [0003] - a plurality of openings arranged in the wall defining the air connection for forming an air blow (air blow) parallel to the direction of travel of the web material, and [0004] - A transfer surface for creating a vacuum effect by blowing air and thereby transferring the web material. [0005] The invention also relates to a fiber web machine. Background technique [0006] In fiber web machines, various blow-based devices are utilized to transfer and guide the web-like material. The web material may be a full width web or a narrow tail cut from the web. In the simplest case, the device is a tube forming an air connection whose wall is provided with a plurality of openings for forming blows. There are also so-called blow plates, the operation of which is also based on blowing. [0007] In general, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21F7/00D21G9/00B65H23/24F26B13/20
CPCB65H2801/84D21G9/0063D21F1/42B65H23/24F26B13/10F26B21/004D21F7/00
Inventor 米科·哈库利韦利-佩卡·科尔琼恩卡里-马蒂·莱蒂宁维莱·吕蒂凯宁
Owner VALMET TECH OY