EP2806055A1 - Empileur tourne-piles - Google Patents

Empileur tourne-piles Download PDF

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Publication number
EP2806055A1
EP2806055A1 EP14001224.6A EP14001224A EP2806055A1 EP 2806055 A1 EP2806055 A1 EP 2806055A1 EP 14001224 A EP14001224 A EP 14001224A EP 2806055 A1 EP2806055 A1 EP 2806055A1
Authority
EP
European Patent Office
Prior art keywords
belt
air
batt
laying
stacker
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.)
Withdrawn
Application number
EP14001224.6A
Other languages
German (de)
English (en)
Inventor
Reinhold Döring
Heiko Schenuit
Horst Tönnis
Sven Thomssen
Stefan Höltken
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truetzschler GmbH and Co KG
Original Assignee
Truetzschler GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Truetzschler GmbH and Co KG filed Critical Truetzschler GmbH and Co KG
Publication of EP2806055A1 publication Critical patent/EP2806055A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the invention relates to a cross-stacker for forming a nonwoven fabric from several layers of batt.
  • carding machines For the production of multi-ply nonwovens carding machines are usually used with subsequent stackers.
  • fiber flocks are fed on the inlet side, which are dissolved up to the individual fiber and output on the outlet side as an unconsolidated textile fabric, the batt.
  • stabilizing pile guides wherein an embodiment provides a shroud, so that the incoming pile is guided from the inlet region of the stacker to the laying carriage between two bands.
  • the shroud and a subsequent counter-belt are made permeable to air, which facilitates the management of the batt, as it can be better controlled air trapped, integrated crimping of the individual fibers and the restoring forces of the individual fibers. It may also be advantageous to perform the inlet belt permeable to air. It turns out for the Inlet area up to and including the laying carriage a stabilizing pile guide with which almost any structural change is avoided.
  • the air-permeable belts are disadvantageous especially in the storage area of the batt on the outlet belt of the cross-stacker, since the entrained air flowing perpendicularly through the counter belt rolls up or overturns the edges of the batt, which has a negative effect on the quality of the produced nonwoven. This can affect the counter belt, but also the inlet belt, which is also involved in placing the batt on the outlet conveyor.
  • the stacker for forming a nonwoven fabric from several layers of batt comprises at least one endless circulating infeed belt which conveys the batt from the inlet region of the crosslapper to a laying nip of a laying carriage. Another endless belt cooperates with the laying carriage and places the batt on an outlet conveyor together with the infeed conveyor.
  • the further circulating belt can be executed as an air-permeable belt, which has at least one air-impermeable edge, air turbulence, which raise or roll up the edges of the batt, can be avoided.
  • the counter-belt with which the infeed belt chambering and leads the batt, as air-permeable belt run, so that the entrained air can be removed perpendicular to the transport direction of the batt.
  • trapped air the integrated crimping of the individual fibers and the restoring forces of the individual fibers can be better controlled.
  • the inlet area up to and including the laying carriage a stabilizing pile guide with the almost any structural change is avoided.
  • This advantage is in the storage of the batt on the outlet belt but to the detriment, since at high speeds in the storage of the batt, these vertical air currents lead to turbulence and can roll up or fold the edges of the batt.
  • the edge area is made air-impermeable, the air must escape laterally, whereby the turbulence of the escaping air is avoided on the deposited batt.
  • the inlet belt can also be designed as an air-permeable belt, so that entrained air can also be removed here. Due to the lateral coverage of the edge areas, the air must escape laterally in this area, which avoids the turbulence of the escaping air on the deposited fiber pile.
  • the air-permeable belt is designed as a perforated belt or sieve belt, the edge region is provided with a cover, resulting in a low-cost embodiment by a standardized air-permeable belt is modified.
  • both edges of the counter-belt are made impermeable to air.
  • a further improvement of the invention is achieved in that the cover is formed of a film which is thermally connected to the wire. This can be retrofitted with the film already delivered a stacker, which covers the edge region of the wire.
  • the cover which consists for example of a plastic or rubber-like material, are glued to the screen belt.
  • a coating of the edge region for example, with liquid plastic, has been found, since hereby the openings are not only covered, but filled, so that on the front and back of the band, the edge region is made air-impermeable with approximately the same thickness.
  • the air-impermeable edge has a width of 100 to 500 mm, preferably 300mm wide.
  • the other circumferential band may be formed as a counter-band or shroud.
  • FIG. 1 is exemplary and only schematically illustrates the principle of a cross stacker.
  • the batt 3 is transported to an infeed conveyor 2 of a cross-stacker 1.
  • an upper carriage is arranged, in which in this illustration only one guide roller 6 can be seen.
  • the stacker 1 has a laying carriage, of which a laying roller 10 for a counter-belt 13 and a laying roller 9 for the inlet belt 2 are shown.
  • the so-called laying gap 11 is arranged, from which the batt 3 exits and is deposited on a arranged below the laying carriage discharge belt 15.
  • Both laying rollers 9, 10 assume the direction of travel depending on the task to store the batt 3 orthogonal to the previous direction on a arranged below the laying carriage outlet conveyor 15 and thereby fold.
  • the laying carriage moves continuously in the horizontal direction back and forth over a preset width.
  • the infeed belt 2 is deflected at least by a first and second deflection roller 4, 5 and around a deflection roller 6 of the superstructure.
  • a shroud 7 is arranged, which is guided in this illustration to a guide roller 8, a guide roller 6 of the upper carriage and a further guide roller 12.
  • Both bands 2, 7 are designed as endless belts which are driven on at least one further deflection roller, not shown.
  • the infeed belt 2 and the shroud 7 do not run parallel, but form an open angle to the carding machine, in which the fiber web 3 is pulled in and slightly compressed.
  • the batt 3 is in order guided the guide roller 6 of the superstructure around, wherein the shroud 7 is discharged laterally by means of the guide roller 12.
  • the batt 3 In exactly the other direction of the batt 3 is transported because it is guided around the guide roller 6 of the superstructure by 180 ° and stored on a below the infeed belt 2 arranged parallel counter-belt 13.
  • the opposing belt 13 and the infeed belt 2 cling or guide the fiber web 3 together now to the laying nip 11, which is formed essentially from the distance between the two laying rollers 9 and 10 of the laying carriage.
  • the batt 3 emerges from the laying nip 11 and is laid on a discharge belt 15 arranged below the laying nip 11.
  • the laying carriage thus moves permanently in the direction of the arrow across the width of the outlet conveyor 15, on which the batt 3 is deposited and thereby folded.
  • the infeed belt 2, the shroud 7 and the counter belt 13 are designed as endless belts, the shroud 7 and the counter belt 13 are designed to be permeable to air to remove entrained air.
  • An inexpensive embodiment is the use of a perforated tape.
  • a preferred embodiment is the use of a screen belt.
  • the laying carriage speed can be increased or decreased relative to the entry speed of the batt. That is, the laying rollers 9 and 10 move faster in the horizontal reciprocating direction.
  • Both the inlet belt 2 as well as the shroud 7 have the same direction for the batt 3 and usually the same speed. To a certain extent, the fiber orientation at the surface can be affected in relation to the neutral fiber of the sliver if both belts 2, 7 are operated at slightly different speeds.
  • FIG. 2 shows the stacker 1 in perspective view.
  • the shroud 7 and the counter-belt 13 are made permeable to air in the central area, which facilitates the guidance of the batt 3 from the inlet area to the laying carriage, since this can better control the trapped air, integrated crimping of the individual fibers and the restoring forces of the individual fibers. It results for the inlet area up to and including the laying carriage a stabilizing pile guide, with the almost any structural change is avoided.
  • the edge region of the counter-belt 13 is made impermeable to air, so that the negative effect of the vertical air flow on the fiber pile 3 does not occur.
  • the positive effect in the leadership of the batt 3 can be obtained without this having a negative impact on the storage of the batt 3 on the outlet conveyor 15. It has proved to be advantageous if the infeed conveyor 2 is carried out permeable to air, and the edge region is executed impermeable to air, as well as the infeed belt 2 moves with the laying carriage over the working width of the outlet belt 15.
  • only the opposite band 13 is designed as an air-permeable belt and in the edge regions with a cover 14a, 14b so far closed, i. made air-impermeable, that the enclosed between the infeed belt 2 and the counter belt 13 batt 3 is easily covered in the edge region.
  • a cover 14a, 14b so far closed, i. made air-impermeable, that the enclosed between the infeed belt 2 and the counter belt 13 batt 3 is easily covered in the edge region.
  • the structural design is carried out by a counter-belt 13 as a perforated belt or wire belt, in which preferably both edge regions are provided with an air-impermeable cover 14a, 14b.
  • the cover 14a, 14b can be designed as a strip in the form of a film, which is thermally applied to the edge of the counter-strip 13 and thus sealed impermeable to the edge region.
  • a covered edge strip of 100 to 500 mm has been found to be advantageous.
  • a cover 14a, 14b on the edge of the counter-belt 13, each 300 mm wide has proven to be particularly efficient, with which the deposited fiber pile 3 can be covered very effectively in the edge region, and on the other hand, air entrained well in the inlet region of the cross-stacker can.
  • the batt 3 is deposited in this embodiment by a closed inlet belt 2 and an air-permeable only in the middle of the band counter-belt 13 on the outlet belt 15.
  • the inlet belt can be designed as an air-permeable belt, the edge regions also with at least an air-impermeable cover 14a, 14b are provided.
  • Each edge region can be provided on one or both sides with an air-impermeable cover 14a, 14b, ie on the upper side and / or on the lower side.
  • the cover 14a, 14b can be applied thermally or by an adhesive process, for example by a film on the air-permeable belt, the cover 14a, 14b should not apply and thus the band over the width should not have a different thickness.
  • the cover 14a, 14b must continue to be mounted burr-free, so that no fibers can adhere.
  • the cover 14a, 14b may be applied as a coating, for example of a liquid plastic.
  • the inlet region of the cross-stacker is formed by the first guide roller 4 with the inlet belt 2.
  • the guide roller 8 of the shroud 7 is arranged above the guide roller 4, the guide roller 8 of the shroud 7 is arranged.
  • the shroud 7 runs around the three rollers 8, 6, 10, each with approximately 180 °, wherein the shroud 7 undergoes three changes in direction.
  • the batt 3 is first transported by the infeed belt 2 with the shroud 7 from the inlet region of the cross stacker 1 to the superstructure, where it is deflected around the deflection roller 6 of the superstructure by 180 ° in order to emerge from the laying nip 11.
  • the batt 3 is transported in this embodiment from the inlet region of the cross stacker 1 without tape change to the laying gap 11 of the laying carriage.
  • the counter-band 13 is omitted in this embodiment, whose speed is also at the speed of the inlet belt. 2 would have to be synchronized.
  • the shroud 7 is designed as an air-permeable belt, the edge region is impermeable to air. As in the embodiment of FIGS.
  • At least one edge region of the shroud 7 is provided with a cover 14b, but preferably both edge regions with the covers 14a, 14b.
  • the inlet belt 2 can be designed as an air-permeable belt and be provided with a cover 14a, 14b in the edge region.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP14001224.6A 2013-05-23 2014-04-02 Empileur tourne-piles Withdrawn EP2806055A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013105249.5A DE102013105249B3 (de) 2013-05-23 2013-05-23 Kreuzleger

Publications (1)

Publication Number Publication Date
EP2806055A1 true EP2806055A1 (fr) 2014-11-26

Family

ID=50440438

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14001224.6A Withdrawn EP2806055A1 (fr) 2013-05-23 2014-04-02 Empileur tourne-piles

Country Status (3)

Country Link
EP (1) EP2806055A1 (fr)
CN (1) CN104178932A (fr)
DE (1) DE102013105249B3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3150753A1 (fr) * 2015-09-30 2017-04-05 Oskar Dilo Maschinenfabrik KG Dispositif de transport d'une bande de voile ou d'un non-tisse
EP3263752A1 (fr) * 2016-06-28 2018-01-03 Oskar Dilo Maschinenfabrik KG Dispositif de transport et d'etirage transversal d'une bande non tissee ou de voile
EP3812490A1 (fr) * 2019-10-23 2021-04-28 AUTEFA Solutions Germany GmbH Dispositif de protection, procédé de protection et distributeur de non-tissé

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398240A1 (fr) * 1989-05-15 1990-11-22 E.I. Du Pont De Nemours And Company Plieuse pour nappes, en particulier en croix

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10250089B4 (de) * 2002-10-25 2014-02-13 Oskar Dilo Maschinenfabrik Kg Steilarm-Vliesleger und Vorrichtung zum Erzeugen eines kreuzgelegten Faservlieses
DE102006028448A1 (de) * 2006-06-21 2007-12-27 ERKO Trützschler GmbH Kreuzleger

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0398240A1 (fr) * 1989-05-15 1990-11-22 E.I. Du Pont De Nemours And Company Plieuse pour nappes, en particulier en croix

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3150753A1 (fr) * 2015-09-30 2017-04-05 Oskar Dilo Maschinenfabrik KG Dispositif de transport d'une bande de voile ou d'un non-tisse
US9725830B2 (en) 2015-09-30 2017-08-08 Oskar Dilo Maschinenfabrik Kg Device for conveying a fiber web or a web of nonwoven
EP3263752A1 (fr) * 2016-06-28 2018-01-03 Oskar Dilo Maschinenfabrik KG Dispositif de transport et d'etirage transversal d'une bande non tissee ou de voile
EP3812490A1 (fr) * 2019-10-23 2021-04-28 AUTEFA Solutions Germany GmbH Dispositif de protection, procédé de protection et distributeur de non-tissé

Also Published As

Publication number Publication date
DE102013105249B3 (de) 2014-11-20
CN104178932A (zh) 2014-12-03

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