CN205294496U

CN205294496U - Drum

Info

Publication number: CN205294496U
Application number: CN201520643514.9U
Authority: CN
Inventors: M.米勒; E.韦特申巴彻
Original assignee: Voith Patent GmbH
Current assignee: Voith Patent GmbH
Priority date: 2014-08-25
Filing date: 2015-08-24
Publication date: 2016-06-08
Anticipated expiration: 2025-08-24
Also published as: FI11045U1; AT16578U1

Abstract

The utility model relates to a drum (1) of the coiling fiber material width of cloth (2). Here, the fiber material width of cloth (2) adhesive force on drum (1) reduced in the time long as far as possible from this, and promptly, the outer peripheral face of drum (1) is abnormal shapeization ground structure on the section is distinguished to the axial at least, wherein, and uplift (4) no longer than 10mm on circumferencial direction (3) of abnormal shape portion.

Description

Cylinder

Technical field

This utility model relates to a kind of cylinder for coiled fiber web.

Background technology

In paper industry, paper stock width is wound up on cylinder and so stores. Generating the problem that, web tail end especially freely moves when cylinder is changed herein, is thus likely to tear and be likely to result in damage. .

Document DE10085234T1 records a kind of method and apparatus for changing cylinder, wherein, the paper stock width that needs to be wound up on cylinder in order to form paper roll and at least through the twisting resistance of carrying roller and nip pressure motion, wherein, the new cylinder above carrying roller is made to contact with this carrying roller when cylinder is changed.

In order to be fixed on by web tail end on the cylinder of zero load, arrange the binding agent of adhesive tape or thickness to web tail end generally in advance.

In fault or be transported in the process of idle roller from fully loaded cylinder, the band of usual whole fibrous cloth width or whole fibrous cloth width is exported in the pulper of machinery stack.

In order to reliably ensure that in the pulper exporting to machinery stack, the fibrous cloth width on carrying roller is directed to the scraper of carrying roller. In order to improve the band of fibrous cloth width or the fibrous cloth width adhesiveness on carrying roller, especially wider in web or when web speed is higher generally it is necessary that carrying roller is aspirated, and this is very expensive.

Utility model content

Technical problem to be solved in the utility model is, within the time long as far as possible and when not affecting the reception of web head end when transhipment, and the band of reduction fibrous cloth width or fibrous cloth width adhesive force on cylinder.

By this utility model, this technical problem thus solves, i.e. the outer peripheral face of cylinder is at least constituted in axial section special-shapedly, wherein, the protuberance in abnormal shape portion in a circumferential direction no longer than 10mm, be preferably no longer than 5mm, especially no longer than 3mm.

By interrupting protuberance, it is possible to make the adhesive force of relevant portions be remarkably decreased, even if protuberance is worn and torn by fibrous cloth width gradually increasedly at run duration.

This can also thus strengthen, and the protuberance in abnormal shape portion has radial heights different in a circumferential direction, and the preferred smaller radial of protuberance in abnormal shape portion replaces in a circumferential direction to height and bigger radial height.

The web head end adhesiveness when transhipment is little affected by the negative effect in abnormal shape portion, especially between adjacent protuberance distance in a circumferential direction less than 5mm, be especially less than 3mm time.

For this, abnormal shape portion can have axially extended groove and/or favour the groove of circumferencial direction. But will be advantageous that equally, abnormal shape portion generally has protuberance vertically.

Having proven to advantageously in the manufacturability and effect in abnormal shape portion, this abnormal shape portion has honeycomb texture or is made up of embossing.

Especially, after whole fibrous cloth width exported in machinery stack before being received by cylinder, abnormal shape portion should also be as extending at least whole section contacted with fibrous cloth width formation.

Because the problem showing adhesive force on the width of fibrous cloth width to some extent, will be advantageous that, outer peripheral face such as only has the section of multiple abnormal shapeization on web edge.

Same in order to better with require to mate advantageously, abnormal shape portion differently constructs.

In order to easily manufacture abnormal shape portion, the outer peripheral face of cylinder should be made of plastics, even if this can bring bigger abrasion.

Thereby it can be assured that fibrous cloth width or fibrous cloth width ground band are reliably exported in machinery stack by simple mode. At this, save necessity of carrying roller suction.

Accompanying drawing explanation

Following this utility model is expanded on further with multiple embodiments. Shown in accompanying drawing:

Fig. 1: be the up-coiler schematic cross-section when webs of material 2 being exported to the pulper of machinery stack;

Fig. 2: be the up-coiler schematic cross-section when coiling material web 2;

Fig. 3: be the top view in the special-shaped portion of cylinder 1;

Fig. 4: be another abnormal shape portion of cylinder 1 top view and

Fig. 5: be the partial cross sectional by another abnormal shape portion.

Detailed description of the invention

In this machine, fibrous cloth width 2 is wound up on cylinder 1, and this cylinder is the form having plastic-faced steel core at this. During this winding process shown in Fig. 2, cylinder 1 is driven by carrying roller 7 on its circumference.

At this, two shaft ends of cylinder 1 can be rotated to support in each arm of delivery unit. Before cylinder 1 is fully loaded, unloaded cylinder 1 is guided by other arm, reaches machine speed by carrying roller 7.

In order to change cylinder, unloaded cylinder 1 clings on carrying roller 7 and fibrous cloth width 2, and moves away from carrying roller 7 while cylinder 1 is fully loaded.

At this, fibrous cloth width 2 can separate with method in a different manner. In most cases, separation and the fibrous cloth width 2 attaching on unloaded cylinder 1 of fibrous cloth width 2 is carried out by air-spray or water jet.

Then, fully loaded cylinder 1 must be braked and be sent in final position.

Finally, fully loaded cylinder 1 can successfully be mentioned from machine with boom hoisting.

When fibrous cloth width 2 ruptures or even at when changing cylinder it may be necessary to, the band of fibrous cloth width 2 or fibrous cloth width is guided into machinery stack and being guided at this in pulper for reprocessing.

As shown in Figure 1, it is directed through between unloaded cylinder 1 and carrying roller 7 not closed winding gap at this fibrous cloth width 2 and is guided to scraper 5 place of carrying roller 7 at this place always.

Fibrous cloth width 2 or the corresponding band of fibrous cloth width are separated by scraper 5 with the outer peripheral face of carrying roller 7, then it are directed into downwards in machinery stack.

This layout is not only simple and firm but also function is reliable.

In order to be not wound up into by the band of fibrous cloth width 2 or fibrous cloth width 2 itself on the cylinder 1 of zero load, cylinder 1 has the adhesive force of reduction.

This is realized by the abnormal shapeization of cylinder 1, and this abnormal shapeization is especially easier to realize in such cylinder 1, and the outer peripheral face of described cylinder 1 is made up of plastic coating.

In order to limit the adhesiveness of fibrous cloth width 2, the protuberance 4 in abnormal shape portion on circumferencial direction 3 no longer than 5mm.

But also to make the web head end desired adhesiveness on cylinder 1 be not subjected to serious reduction impact, therefore, adjacent protuberance 4 distances on circumferencial direction 3 are less than 5mm.

In special-shaped portion shown in figure 3, protuberance 4 is consisted of multiple vertically and along the circumferential direction grooves 6 that 3 extend parallel to each other respectively.

By the special-shaped portion of Fig. 4, there is multiple groove 6 extended in parallel equally, but this groove and circumferencial direction 3 form the angle of positive 45 �� or negative 45 ��. Therefore, this abnormal shape portion is equivalent to embossing.

In both cases, the adjacent distance between groove 6 is equal, and swells and 4 have equilateral tetragon, and wherein, other shapes are also feasible certainly.

Special-shaped portion shown in Fig. 5 has radial heights different on circumferencial direction 3, and wherein, the smaller radial of the protuberance 4 in abnormal shape portion replaces on circumferencial direction 3 to height and bigger radial height.

Abnormal shape portion can extend on the whole outer peripheral face of cylinder 1 or only cover section, the especially marginal area determined. The abnormal shapeizations different, that especially impressing intensity is different of this section are also feasible.

Claims

1. the cylinder (1) for coiled fiber web (2), it is characterized in that, the outer peripheral face of described cylinder (1) at least irregularly constructs in axial section, wherein, the protuberance (4) in abnormal shape portion at circumferencial direction (3) no longer than 10mm.

2. cylinder according to claim 1 (1), it is characterised in that the protuberance (4) in described abnormal shape portion on circumferencial direction (3) no longer than 5mm.

3. cylinder according to claim 1 and 2 (1), it is characterised in that the protuberance (4) in described abnormal shape portion has different radial heights on circumferencial direction (3).

4. cylinder according to claim 3 (1), it is characterised in that the smaller radial of the protuberance (4) in described abnormal shape portion is upper alternately at circumferencial direction (3) to height and bigger radial height.

5. cylinder according to claim 1 and 2 (1), it is characterised in that the adjacent protuberance (4) distance on circumferencial direction (3) is less than 5mm.

6. cylinder according to claim 1 and 2 (1), it is characterised in that described abnormal shape portion has axially extended groove (6).

7. cylinder according to claim 1 and 2 (1), it is characterised in that described abnormal shape portion has groove (6), and described groove (6) favours circumferencial direction (3).

8. cylinder according to claim 1 and 2 (1), it is characterised in that described abnormal shape portion has protuberance (4) vertically.

9. cylinder according to claim 1 and 2 (1), it is characterised in that described abnormal shape portion has honeycomb texture.

10. cylinder according to claim 1 and 2 (1), it is characterised in that described abnormal shape portion is made up of embossing.

11. cylinder according to claim 1 and 2 (1), it is characterised in that described abnormal shape portion is at least formed whole and described fibrous cloth width (2) on the section contacted and extends.

12. cylinder according to claim 1 and 2 (1), it is characterised in that described outer peripheral face has the section of multiple abnormal shapeization.

13. cylinder according to claim 12 (1), it is characterised in that described abnormal shape portion differently constructs.

14. cylinder according to claim 1 and 2 (1), it is characterised in that the outer peripheral face of described cylinder is made of plastics.

15. cylinder according to claim 1 (1), it is characterised in that the protuberance (4) in described abnormal shape portion on circumferencial direction (3) no longer than 3mm.

16. cylinder according to claim 1 and 2 (1), it is characterised in that the adjacent protuberance (4) distance on circumferencial direction (3) is less than 3mm.