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Suction roll system

A control system, low-voltage system technology, applied in the direction of textile and paper making, paper machine, object supply, etc., can solve the problem of unfavorable length and cross-section ratio, and achieve the effect of high flexibility

Active Publication Date: 2015-07-29
WINKLER DUNNEBIER GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In such systems, however, these suction channels generally have a relatively unfavorable ratio of length to cross-section, so that the gas exchange in the individual suction channels is subject to a relatively high flow resistance when switching between low-pressure mode and normal-pressure mode , the suction channel connects the suction hole with the control head on the low-pressure side respectively
Therefore, when a plurality of suction openings are controlled jointly or simultaneously in groups, the on-times achievable with such a system can only be limited as degrees of freedom.

Method used

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Examples

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Embodiment Construction

[0029] according to figure 1 The suction roll system is arranged to be used in a device not shown in detail for processing paper or cellulose webs. In this device, the paper web or cellulose web is first guided as a whole by functional rollers (for example deflection rollers, but also cutting or separating rollers). Depending on the intended use of the device, the material web is here cut into a plurality of individual planar pieces (for example paper pieces) or cellulose pieces (for example handkerchiefs or similar objects), which are subsequently conveyed or supplied individually to another a processing position. While the individual blocks are being conveyed further, they can also be deflected, supported or processed, such as punching out windows in the form of other cutting processes, making impressions or the like.

[0030] The suction roll system 1 can be used at any position in the device as individual function rollers or function rolls, and the suction roll system is...

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Abstract

A suction roll system (1) with a rotatably mounted cylindrical suction roll (32), the cylinder jacket (34) of which is provided with a plurality of suction holes (36), which can be selectively connected via a control system individually or in groups to a vacuum system (14), is intended to make possible, in a reliable fashion, particularly short switchover times and also high flexibility, even when groups of a plurality of suction holes (36) are actuated. To this end, according to the invention, the control system comprises a fixedly mounted hollow cylinder (2) projecting into the suction roll (32) and connected by its interior volume (10) to the vacuum system (14), the cylinder jacket (20) of which is penetrated by a number of control slots (22).

Description

technical field [0001] The invention relates to a suction roll system with a rotatably supported cylindrical suction roll, the cylindrical housing of which is provided with a plurality of suction holes, in particular in the form of perforated seams, which can be individually controlled by a control system. They are selectively connected to the low-voltage system either ground or in groups. Furthermore, the invention relates to a device for processing a material web, in particular a paper web or a cellulose web. Background technique [0002] In the paper converting or cellulose converting industries, material webs are often processed. In this case, for example during the manufacture of envelopes, printed products or the like, the paper web is supplied to a further processing station, wherein the paper web is cut, folded, printed or otherwise processed into individual pieces. Likewise, for example, in the manufacture of handkerchiefs, the cellulose-fiber web is subjected to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26D7/18D21F3/10
CPCB65H29/243B65H2406/365B65H2601/324B65H27/00D21F3/10B65H2406/332B65H2406/3312B65H20/12B65H5/226
Inventor 安德斯·林克罗尔夫·马杰维斯基康拉德·波普索斯腾·特夫斯蕾娜·塞格尔尤尔根·韦格
Owner WINKLER DUNNEBIER GMBH
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