CN104178932A - Cross Lap-forming device - Google Patents
Cross Lap-forming device Download PDFInfo
- Publication number
- CN104178932A CN104178932A CN201410208376.1A CN201410208376A CN104178932A CN 104178932 A CN104178932 A CN 104178932A CN 201410208376 A CN201410208376 A CN 201410208376A CN 104178932 A CN104178932 A CN 104178932A
- Authority
- CN
- China
- Prior art keywords
- band
- lapping machine
- cross lapping
- lay
- fiber web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
- D01G25/00—Lap-forming devices not integral with machines specified above
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Preliminary Treatment Of Fibers (AREA)
Abstract
The invention relates to a cross lap-forming device to form a non-woven fabric through several layers of fibrous webs, the cross lap-forming device comprises at least one endlessly revolving input belt (2), which conveys the fibrous webs (3) from an input area of the cross lap-forming device (1) to a laying gap (11) of a laying support, the cross lap-forming device also comprises another endlessly revolving belt which cooperates with the laying support, and the endlessly revolving belt and the input belt (2) lay the fibrous webs (3) on an output belt (15). The invention is characterized in that the endlessly revolving belt is available as an air-permeable belt having at least one air-impermeable edge.
Description
Technical field
The present invention relates to a kind of for formed the cross lapping machine of nonwoven fabric by multi-layered web.
Background technology
In order to manufacture multi-layer nonwoven fabrics, application is with the carding equipment of follow-up cross lapping machine conventionally.In carding equipment, at input side input fiber tufting, fiber tufting loosened until become single fiber and at outlet side as unconsolidated plane configuration fabric---fiber web is exported.
Need in order to make full use of operational combing efficiency: improve the net spee in the cross lapping machine of follow-up layout.But, occur very large centrifugal force at the slewing rollers place of lay band here, centrifugal force and traffic direction and tape speed have significantly reduced fibroreticulate mass property relatively.
For this reason, it is known playing the net guided of static stabilization, and wherein, a kind of embodiment is provided with cover tape, thus the fiber web of input from the input area of cross lapping machine until lay support (Legewagen) all between two bands, guide.Cover tape and follow-up cooperation band (Gegenband) are implemented in breathable mode, this makes fibroreticulate guiding become easily, because the restoring force of the curling and single fiber of the air of bringing into, single fiber combination can be controlled thus better.Having equally advantage ground can be: input tape is implemented in breathable mode.For input area until and comprise lay support, all obtained the net guided of a static stabilization, rely on this net guided and avoided almost various structural changes.But, breathable band is just imperfect at fiber web in intersection layer is exported the lay region of bringing, this is because of vertically through coordinating, band flows out, the air of traction makes fibroreticulate edge roll or turn down in the lump, and this adversely has influence on the quality of produced nonwoven fabric.This may relate to and coordinate band, also may relate to input tape, and input tape participates in the process that fiber web lay is brought to output equally.
Summary of the invention
From prior art, task of the present invention is, creates a kind of cross lapping machine, relies on this cross lapping machine, under higher speed, can transmit rapidly single or multiple lift fiber web and can be without the fiber web of mass defect ground lay single or multiple lift.
The present invention solves proposed task by the instruction of claim 1; The advantageous structural feature of other tools of the present invention shows feature by dependent claims.
According to instructing according to the technology of claim 1, comprise at least one rotating input tape for no reason for the cross lapping machine that is formed nonwoven fabric by the fiber web of multilayer, this input tape gives from the input area of cross lapping machine the lay gap of delivering to lay support by fiber web.Another is rotating band and the acting in conjunction of lay support for no reason, and together with input tape by fiber web be laid in output bring.
By described another rotating band being embodied as to breathable, there is the band at least one gas impermeable edge, can avoid the air-swirl that makes fibroreticulate edge dig or roll.
In principle, be proved advantageously: coordinate band (input tape rely on this cooperation band fiber web is clamped and guided) to be embodied as breathable band, thereby in the lump the air of guiding can by perpendicular to fibroreticulate direction of transfer derive.The restoring force of the curling and single fiber of the air of bringing into thus,, the combination of single fiber can better be controlled.For input area until and comprise lay support, all obtained the net guided of a static stabilization, rely on this net guided and avoided almost various structural changes.But fiber web being laid in to output while bringing, this advantage becomes shortcoming, and this is that in the time of lay down fibre net, vertical air stream causes eddy current, and makes fibroreticulate edge roll or turn down because under higher speed.By to coordinating the covering defined of band, thus, fringe region is implemented gas impermeablely, and air must be discharged in side direction, thus, has avoided the air of the discharging eddy current on the fiber web of institute's lay.
Alternatively or as a supplement, input tape also may be embodied as breathable band, thus here in the lump the air of guiding also can be exported.Covering by edge region in side direction, air must be discharged in this region in side direction, thus, has avoided the air of the discharging eddy current on the fiber web of institute's lay.
By breathable band being embodied as to band or the sieve aperture band of punching, its fringe region is provided with shielding part, has obtained the embodiment of Cheap and practical, and mode is: standardized breathable band is repaired.
In a preferred embodiment, coordinate two edges of band to implement gas impermeablely.Apparent velocity and have fibrous material to be processed and surely, can be enough: only implemented gas impermeable edge by lay edge with side through fiber web.In two covered situations in edge, very very thin fiber web also can be under fair speed without mass loss transport.
Another improvement project of the present invention realizes as follows, that is: shielding part is formed by film, and this film is connected in calorifics mode with sieve aperture band.Thus, can be reequiped with this film the cross lapping machine providing, this film hides the fringe region of sieve aperture band.
In a preferred embodiment, shielding part for example can be mutually bonding with sieve aperture band, and this shielding part is for example made up of plastics or rubber-like material.
Be proved to be the advantageous alternate embodiment of tool: fringe region is for example applied with liquid plastic, this is because opening is not only covered thus, and be filled, thereby band front side and dorsal part on, fringe region with almost identical thickness gas impermeable implement.
Be proved advantageously, gas impermeable edge has the width of 100mm to 500mm, is preferably 300mm wide.
The embodiment of optic chiasma lapping machine and surely, the band of described another continuous rotary can be configured to coordinate band or cover tape.
Brief description of the drawings
Below, by the possible embodiment schematically illustrating, the present invention is elaborated.Wherein:
Fig. 1 illustrates illustrating of cross lapping machine;
Fig. 2 illustrates the see-through view of cross lapping machine;
Fig. 3 illustrates another embodiment of cross lapping machine.
Detailed description of the invention
In Fig. 1 exemplarily and the principle of cross lapping machine is only schematically shown.Fiber web 3 is sent to the input tape 2 of cross lapping machine 1 from unshowned carding equipment.There is upper bracket in cross lapping machine 1 internal placement, for upper bracket, in diagram, only can see slewing rollers 6.In addition, cross lapping machine 1 has lay support, from shown in it for coordinating with 13 lay on roller 10 with for the lay on roller 9 of input tape 2.Between cooperation is with 13 lay on roller 10 and the lay on roller 9 of input tape 2, be furnished with so-called lay gap 11, fiber web 3 out and by lay is with on 15 to the output that is arranged in lay support below from lay gap 11.Two lay on roller 9,10 and travel direction are born following task relatively, that is: fiber web 3 is orthogonal to traffic direction shakedown now and is put into the output that is arranged in lay support below and is with on 15, and folded at this.For this reason, lay support along continuous straight runs travels back and forth continuously on the width adjusting in advance.
Input tape 2 in diagram at least around the first slewing rollers 4 and the second slewing rollers 5 and turn to around the slewing rollers 6 of upper bracket.Above input tape 2, be furnished with cover tape 7, cover tape 7 slewing rollers 6 and another slewing rollers 12 around slewing rollers 8, upper bracket in diagram guide.Be with 2,7 to be embodied as endless band (Endlosband) for two, this endless band is driven at another unshowned slewing rollers place at least.The not operation abreast of input tape 2 and cover tape 7, but form one towards the unlimited acute angle of carding, fiber web 3 is introduced into and the slight compacting of quilt in this acute angle.Fiber web 3 guides around the slewing rollers 6 of upper bracket, and wherein, cover tape 7 derives in side direction by slewing rollers 12.Fiber web 3 is towards lucky other direction transmission, because fiber web 3 turns over 180 ° of ground guiding around the slewing rollers 6 of upper bracket, and is with on 13 to the cooperation of arranging in input tape 2 parallel beneath by lay.Coordinate and be with 13 and at this moment common clamping of input tape 2 guides in other words fiber web 3 until lay gap 11, lay gap 11 is formed by the spacing of two lay on roller 9 and 10 of lay support substantially.Fiber web 3 from lay gap 11 out and be placed on the input tape 15 that is arranged in 11 belows, lay gap.Lay support travels on 15 width in output along the direction of arrow, and fiber web 3 is laid in that output is with on 15 and is folded at this.
Input tape 2, cover tape 7 and cooperation are with 13 to be embodied as endless band, and wherein, cover tape 7 and cooperation are with 13 to construct ventilatively, so that by the air derivation of traction in the lump.The embodiment of Cheap and practical is the band of application punching.It is preferred embodiment application sieve aperture band.
In order to realize tractive or the compression to fiber web 3, lay support speed can improve or lower with respect to fibroreticulate input speed.That is to say, lay support 9 and 10 travels quickly along the direction walking back and forth of level.
Input tape 2 also has cover tape 7 to have traffic direction identical for fiber web 3 and conventionally have identical speed.In the time moving with slightly different speed with 2,7 for two, the surface fiber alignment relevant to the neutral fibre of fiber band can be affected to a certain extent.
Fig. 2 illustrates cross lapping machine 1 with perspective view.Especially, cover tape 7 and cooperation are with 13 in middle section, to construct ventilatively, this makes fiber web 3 from input area until the guiding of lay support becomes easy, this be because: thus, the restoring force of the air of bringing into, the curling and single fiber of single fiber combination can be controlled better.For input area until and comprise lay support, all obtained the net guided of a static stabilization, rely on this net guided and avoided almost various structural changes.
Fiber web 3 is laid in output and is with on 15 and at this and has formed nonwoven fabric, and air stream due to lay support can be for until the very high speed walking back and forth of 300 ms/min has interference works.For closed cooperation, with 13 situation, air is only overflowed in side direction, and this is the not impact of fiber web 3 on overlapping placement almost.But, destroy the surface of the fiber web 3 that output comes and particularly in the fringe region of fiber web 3, play interference effect with the vertical air stream of 13 opening through the cooperation that is embodied as for example sieve aperture band, thus, edge is formed the air of eddy current and is dug, rolls or turn down, and in nonwoven fabric, causes undesirable material stacking portion and horizontal stripe.
According to the present invention, at least coordinate with 13 fringe region gas impermeable implement, thereby do not occur that vertical air flows the negative effect to fiber web 3.Thus, can obtain good effect when fiber web 3 in guiding, and this is for fiber web 3, in output, the lay on 15 does not have negative influence.Be proved advantageously: similarly, input tape 2 is implemented ventilatively, and fringe region implements gas impermeablely, this is because input tape 2 relies on lay support to travel on 15 working width in output.
In this embodiment, only coordinate and be with 13 to be embodied as in breathable band and edge region and to be sealed with following degree by shielding part 14a, 14b, namely implement, that is: bag is contained in input tape 2 and coordinates with being hidden a little in fiber web 3 edge region between 13 gas impermeablely.The running velocity of optic chiasma lapping machine surely, can be enough with there being fiber web to be processed: only coordinate and be provided with unique shielding part 14a with 13 fringe region, wherein, the edge of the lay of fiber web 3 is covered by follow-up fiber web.This can be the following fringe region coordinating with 13, and this fringe region is put with 15 pull-out direction mutually on the contrary with output.
This structural embodiment is with 13 to carry out by the band as punching or the cooperation of sieve aperture band, and in this cooperation is with 13, preferably two fringe regions are provided with gas impermeable shielding part 14a, 14b.Shielding part 14a, 14b may be embodied as the band that is form of film, and this band is coated with to be added in calorifics mode and coordinates with sealing gas impermeable fringe region on 13 edge and thus.At this, be proved the covered edge strip of 100mm to the 500mm width of advantageously respectively doing for oneself.As good compromise proposal, be proved special effectively in cooperation with 13 edge respectively do for oneself shielding part 14a, the 14b of 300mm width, rely on such shielding part 14a, 14b very effectively edge region hide the fiber web 3 of lay, on the other hand, in the input area of cross lapping machine, can derive well the air of traction in the lump.Fiber web 3 is in this embodiment by closed input tape 2 with only coordinate and be with 13 to be laid in output and to be with on 15 at band middle part breathable.Alternatively, also input tape can be embodied as to breathable band, the fringe region of this breathable band is provided with at least one gas impermeable shielding part 14a, 14b equally.Each fringe region can be provided with in a side or in both sides gas impermeable shielding part 14a, 14b, is provided with gas impermeable shielding part 14a, 14b in top side and/or in bottom side.Shielding part 14a, 14b can with calorifics mode or by bonding process for example by film by being installed on breathable band, wherein, shielding part 14a, 14b should not heave and thereby this band on width, should not there is different thickness.In addition, shielding part 14a, 14b must without burr install, so that fiber is not piled up.In other alternatives, shielding part 14a, 14b can be used as the coating being for example made up of liquid plastic and install.
In Fig. 3, the input area of cross lapping machine forms together with input tape 2 by the first slewing rollers 4.Above slewing rollers 4, be furnished with the slewing rollers 8 of cover tape 7.
Cover tape 7 is around three rollers 8,6,10 to approach separately 180 ° of operations, and wherein, cover tape 7 experiences cube to change.First fiber web 3 is sent to upper bracket from the input area of cross lapping machine 1 by input tape 2 together with cover tape 7, turns over 180 ° there around the slewing rollers 6 of upper bracket, so as from lay gap 11 out.
Fiber web 3, in this embodiment from the input area of cross lapping machine 1, is sent to the lay gap 11 of lay support in the situation that not there is not band conversion.Fully guide around the slewing rollers 6 of upper bracket by cover tape 7, do not produce unlimited wedge-shaped part.Do not produce unsteady tractive simultaneously, this be because fiber web 3 with between upper bracket and lay support, keeping identical degree to be held in other words between being with 2 and 7 and to fix at two.Cancel in this embodiment its speed and must be with 13 with synchronized cooperation of the speed of input tape 2 equally.Equally in this embodiment, cover tape 7 is embodied as breathable band, and the fringe region of this breathable band is gas impermeable.As in the embodiment of Fig. 1 and Fig. 2, equally here at least one fringe region of cover tape 7 is provided with shielding part 14b, but preferably two fringe regions are provided with shielding part 14a, 14b.Alternatively or as a supplement, input tape 2 also may be embodied as breathable band, and in edge region, be provided with shielding part 14a, 14b.
Reference numerals list
1 cross lapping machine
2 input tapes
3 fiber webs
4 first slewing rollers
5 second slewing rollers
6 slewing rollers, upper bracket
7 cover tape
8 slewing rollers
9 lay on roller
10 lay on roller
11 lay gaps
12 slewing rollers
13 coordinate band
14a, 14b shielding part
15 output bands.
Claims (10)
1. for formed the cross lapping machine of nonwoven fabric by multi-layered web, described cross lapping machine comprises at least one rotating input tape (2) for no reason, and described input tape (2) gives from the input area of described cross lapping machine (1) the lay gap (11) of delivering to lay support by described fiber web (3); Described cross lapping machine also comprises another rotating band for no reason, described another for no reason rotating band with the acting in conjunction of described lay support and together with described input tape (2), described fiber web (3) is laid on output band (15), it is characterized in that, described another rotating band can be implemented as breathable band, and described breathable band has at least one gas impermeable edge.
2. cross lapping machine according to claim 1, is characterized in that, described input tape (2) is embodied as breathable band, and this breathable band has at least one gas impermeable edge.
3. according to the cross lapping machine described in claim 1 and/or 2, it is characterized in that, described breathable band is embodied as band or the sieve aperture band of punching, and the fringe region of this band is provided with at least one shielding part (14a, 14b).
4. according to the cross lapping machine one of aforementioned claim Suo Shu, it is characterized in that, described breathable band has two gas impermeable edges.
5. cross lapping machine according to claim 3, is characterized in that, described shielding part (14a, 14b) is connected in calorifics mode with described sieve aperture band.
6. cross lapping machine according to claim 3, is characterized in that, described shielding part (14a, 14b) is mutually bonding with described sieve aperture band.
7. cross lapping machine according to claim 3, is characterized in that, described shielding part (14a, 14b) is made up of coating.
8. cross lapping machine according to claim 1, is characterized in that, described gas impermeable edge has the width of 100mm to 500mm, preferably has the width of 300mm.
9. according to the cross lapping machine one of aforementioned claim Suo Shu, it is characterized in that, described another rotating band is configured to coordinate band (13).
10. according to the cross lapping machine one of aforementioned claim Suo Shu, it is characterized in that, described another rotating band is configured to cover tape (7), and described cover tape (7) is sent to described lay support by described fiber web (3) from the described input area of described cross lapping machine (1) together with described input tape (2).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013105249.5A DE102013105249B3 (en) | 2013-05-23 | 2013-05-23 | stacker |
| DE102013105249.5 | 2013-05-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104178932A true CN104178932A (en) | 2014-12-03 |
Family
ID=50440438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410208376.1A Pending CN104178932A (en) | 2013-05-23 | 2014-05-16 | Cross Lap-forming device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2806055A1 (en) |
| CN (1) | CN104178932A (en) |
| DE (1) | DE102013105249B3 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695419A (en) * | 2019-10-23 | 2021-04-23 | 奥特发德国科技有限公司 | Shielding device, shielding method and fiber net laying device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3150753B1 (en) | 2015-09-30 | 2020-01-08 | Oskar Dilo Maschinenfabrik KG | Apparatus for conveying a fibrous web or a nonwoven fabric |
| EP3263752B1 (en) * | 2016-06-28 | 2019-05-22 | Oskar Dilo Maschinenfabrik KG | Device for transporting and stretching a pile or nonwoven web in the transverse direction |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4984772A (en) * | 1989-05-15 | 1991-01-15 | E. I. Du Pont De Nemours And Company | High speed crosslapper |
| DE10250089B4 (en) * | 2002-10-25 | 2014-02-13 | Oskar Dilo Maschinenfabrik Kg | Steilarm-fleece layer and apparatus for producing a cross-laid fiber fleece |
| DE102006028448A1 (en) * | 2006-06-21 | 2007-12-27 | ERKO Trützschler GmbH | stacker |
-
2013
- 2013-05-23 DE DE102013105249.5A patent/DE102013105249B3/en not_active Expired - Fee Related
-
2014
- 2014-04-02 EP EP14001224.6A patent/EP2806055A1/en not_active Withdrawn
- 2014-05-16 CN CN201410208376.1A patent/CN104178932A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112695419A (en) * | 2019-10-23 | 2021-04-23 | 奥特发德国科技有限公司 | Shielding device, shielding method and fiber net laying device |
| CN112695419B (en) * | 2019-10-23 | 2023-10-31 | 奥特发德国科技有限公司 | Shielding device, shielding method and fiber net laying device |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2806055A1 (en) | 2014-11-26 |
| DE102013105249B3 (en) | 2014-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141203 |
|
| WD01 | Invention patent application deemed withdrawn after publication |