EP1136600A1 - Vlieslegervorrichtung für kardierte Faserbahnen - Google Patents

Vlieslegervorrichtung für kardierte Faserbahnen Download PDF

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Publication number
EP1136600A1
EP1136600A1 EP00830178A EP00830178A EP1136600A1 EP 1136600 A1 EP1136600 A1 EP 1136600A1 EP 00830178 A EP00830178 A EP 00830178A EP 00830178 A EP00830178 A EP 00830178A EP 1136600 A1 EP1136600 A1 EP 1136600A1
Authority
EP
European Patent Office
Prior art keywords
lap
forming apparatus
carriage
sprading
mats
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Withdrawn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
EP00830178A
Other languages
English (en)
French (fr)
Inventor
Aldo Pratesi
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.)
Automatex Srl
Original Assignee
Automatex Srl
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 Automatex Srl filed Critical Automatex Srl
Priority to EP00830178A priority Critical patent/EP1136600A1/de
Publication of EP1136600A1 publication Critical patent/EP1136600A1/de
Withdrawn legal-status Critical Current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 present invention relates to a lap-forming apparatus for card webs.
  • Lap-forming apparatuses are used downstream of card machines in order to lay down the card web exiting from these machines into alternate superimposed layers so as to make the card web suited for applications such as stuffing and the like.
  • the lap forming apparatuses are provided with a sprading or lap-forming carriage which comprises suitable conveyor belts and sprading cylinders located above a collecting surface consiting of a table driven into a slow feeding motion.
  • the card web coming from the carding machine located upstream, goes through a path defined by a succession of guiding cylinders and conveyor belts supported and driven by the same cylinders, to arrive at a pair of laminar cylinders which form the final member sprading the web onto the collecting surface.
  • Said laminar cylinders, together with a part of the driving-out cylinders and a part of the conveyor belts, are driven into an alternate straight motion over a length that defines the corresponding dimension of the lapped, that is folded over, web.
  • the drawbacks of lap-forming apparatuses derive to a significant extent from the difficulty of treating such an extremely peculiar material as the card web.
  • the web may have a width of 2 to 3 metres, an extremely low weight (in the order of 8-20 gr/m2) and is made up of fibres of different nature (for example, acrylic, synthetic polyesters, rayon, wool, cotton, etc.) having various length and finesess or denier number.
  • the material to be laid down in superimposed laps is formed by a layer which is very thin with respect to the width, relatively uniform, very light-weight and likely to be affected by even minor interventions.
  • the lap-forming carriage in its reciprocating motion, determines the formation of air vortexes that may negatively affect the underlying web by causing, for example, huge irregularities in the article, such as wrinkles and ripples, which result the more important the higher the working speed.
  • the lap-forming apparatuses of known type cannot exceed a given working speed.
  • the present invention overcomes the above drawbacks by providing a lap-forming apparatus having the characteristics disclosed in claim 1. Further characteristics being set forth in the dependent claims.
  • One of the advantages of the present invention lies in the fact that it is possible to produce an article which is extremely uniform and does not exhibit imperfections even when working at a relatively high speed, that the lap-forming apparatus is simple to operate and easy to service, that it maintains its characteristics unchanged even after a prolonged operating life, and that it has a relatively moderate manufacturing cost.
  • a lap-formimg apparatus (1) is located downstream of a carding machine (not shown) from which it receives a card web (6).
  • the introduction of the card web (6) into the lap-forming apparatus (1) is represented by the arrow (E) in the left side of Fig. 1.
  • the web (6) is guided by a plurality of conveyor belts (90, 901, 911) supported by relevant, suitably driven cylindrical rollers (9, 9').
  • the members for driving the cylindrical rollers (9) are not shown as they are of a type similar to those known in the art.
  • the web (6) Upon its introduction into the lap-forming apparatus (1) the web (6) is supported from below by the first belt (90) and then goes through two opposite rollers (9') which rotate in the directions indicated by relevant arrows (R).
  • the rollers (9') move together with respective belts (901) and (911) and the other rollers (9) which support the webs; the movement of the upper web (911) is represented by the arrow (V) on the outer part of the path followed by the same web.
  • the two webs (901) and (911), upon the step immediately following the travel of web (6), are disposed above and below the same web (6), by moving from left to right in the illustrated example.
  • the conveyor belts (901) and (911) has the dual function of transporting and stretching the web (6) during its travel up to the two laminar cylinders (4) which are driven, in a known manner together with a part of the rollers (9) suppoirting the webs (901) and (911), into a straight, reciprocating motion along the trajectory indicated by (F) and (F-) in Fig. 2.
  • the assembly of laminar cylinders (4) and part of rollers (9) which move therewith, makes up the so-called sprading carriage, and is represented as a whole by 40 in Fig. 2.
  • the web (6) outputting from laminar cylinders (4) is laid down (in a known manner), into alternately superimposed layers, onto a relevant collecting surface defined by a table (not shown) slowly moving forward, for example in the direction indicated by arrow (U) in Fig. 1.
  • the lap-forming apparatus (1) according to the present invention is provided with isolation means consisting of a partition wall (7) interposed between the carriage (40) and the underlying collecting surface, so as to isolate the card web going out of the sprading carriage (40) from any air displacement generated by the carriage as this is moving along.
  • the partition wall may be differently constructed.
  • the partition wall is formed by two mats (7) bilaterally secured to the lap-forming apparatus so as to result solid and thus move together with the laminar cylinders (4) of the sprading carriage (40).
  • the mats (7) are secured to a second pair of cylinders (78) provided with motorization means synchronized with those of the sprading carriage.
  • the motorization means are not described for sake of simplicity as they are similar to those provided for driving the sprading carriage (40).
  • they may include gears and/or belt racks to allow the cylinders (78) to be translated in conjunction with the sprading carriage (40) and the simultaneous rotation of the cylinders (78) about their own axes so that, during the translation, one cylinder (78) unwinds the mat (7) fixed thereto while the other cylinder (78) winds up the other mat (7).
  • the mats (7) are fixed, at the end opposite to that of engagement with cylinders (78), to return means (77) able to keep the mats (7) in tension during their alternate motion (F, F-) in conjunction with the sprading carriage.
  • the return means in the embodiment above described, recover and yield portions of mat of a length substantially corresponding to the difference between the instantaneous radiuses of the mats winding over the cylinders (78).
  • the return means may consist of pneumatic or hydraulic cylinders (77) connected to two rollers (76) on which the external ends of mats (7) are secured.
  • driving-out cylinders (70) may be provided around which the mats (7) are made to pass to allow a substantially vertical disposition of the two portions of mats (7) temporarily not involved in the covering of the lapped card web.
  • the two mats (7) move to the right or to the left, in the direction F or (F-) following the laminar cylinders (4) while the respective vertical portions of the mats move, alternately, either upward or downward being stretched by the cylinders (78) which act upon rollers (76) having the external ends of the mats fixed thereon.
  • a further embodiment may exhibit mats (7) wound over two rollers disposed, for example, in the position of the those illustrated at (76).
  • Such rollers will be provided of return means, for example of elastic type, so as to keep the mats (7) in tension likewise above described.
  • the pneumatic or hydraulic cylinders used in the previous case will not be necessary.
  • the mats (7) may be constructed either in a single element or by means of more listels or plates hinged to each other so as to define a mat.
EP00830178A 2000-03-13 2000-03-13 Vlieslegervorrichtung für kardierte Faserbahnen Withdrawn EP1136600A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP00830178A EP1136600A1 (de) 2000-03-13 2000-03-13 Vlieslegervorrichtung für kardierte Faserbahnen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00830178A EP1136600A1 (de) 2000-03-13 2000-03-13 Vlieslegervorrichtung für kardierte Faserbahnen

Publications (1)

Publication Number Publication Date
EP1136600A1 true EP1136600A1 (de) 2001-09-26

Family

ID=8175232

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00830178A Withdrawn EP1136600A1 (de) 2000-03-13 2000-03-13 Vlieslegervorrichtung für kardierte Faserbahnen

Country Status (1)

Country Link
EP (1) EP1136600A1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1574604A1 (de) * 2004-03-08 2005-09-14 Oskar Dilo Maschinenfabrik KG Speichervorrichtung
DE102004063401A1 (de) * 2004-12-23 2006-07-20 Autefa Automation Gmbh Vliesleger und Verfahren zum Führen eines Flors
EP1870499A2 (de) 2006-06-21 2007-12-26 ERKO Trützschler GmbH Kreuzleger
EP1975287A1 (de) * 2007-03-30 2008-10-01 Oskar Dilo Maschinenfabrik KG Vliesleger
EP1975286A1 (de) * 2007-03-30 2008-10-01 Oskar Dilo Maschinenfabrik KG Vliesleger
ITPD20080382A1 (it) * 2008-12-23 2010-06-24 Texnology S R L Dispositivo di trattamento di un velo di carda
CN102605486A (zh) * 2011-01-19 2012-07-25 奥斯卡迪罗机械制造公司 纤维铺设机
CN102605485A (zh) * 2011-01-19 2012-07-25 奥斯卡迪罗机械制造公司 纤维铺设机
DE202012102597U1 (de) 2012-07-13 2013-10-14 Hi Tech Textile Holding Gmbh Vliesleger
EP3015577A1 (de) 2014-10-27 2016-05-04 Oskar Dilo Maschinenfabrik KG Vliesleger
EP3150753A1 (de) 2015-09-30 2017-04-05 Oskar Dilo Maschinenfabrik KG Vorrichtung zum fördern einer florbahn oder eines vlieses
IT201900008706A1 (it) 2019-06-12 2020-12-12 Mirco Battistella Faldatore per veli di carda
US20210123164A1 (en) * 2019-10-23 2021-04-29 Autefa Solutions Germany Gmbh Shielding device, shielding process and crosslapper

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642178A (en) * 1925-03-23 1927-09-13 Schorsch Ludwig Lap machine
US3997942A (en) * 1974-12-12 1976-12-21 Cotton Incorporated Batt forming and feeding apparatus
FR2332348A1 (fr) * 1975-11-19 1977-06-17 Krupp Gmbh Plieuse pour voile
DE3908987A1 (de) * 1988-03-22 1989-10-05 Rockwool Ab Verfahren und vorrichtung zum gefalteten auslegen einer werkstoffmatte
DE9212215U1 (de) * 1992-09-10 1994-01-13 Autefa Maschinenfab Vorrichtung zur Herstellung eines Vlieses aus Fasermaterial

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1642178A (en) * 1925-03-23 1927-09-13 Schorsch Ludwig Lap machine
US3997942A (en) * 1974-12-12 1976-12-21 Cotton Incorporated Batt forming and feeding apparatus
FR2332348A1 (fr) * 1975-11-19 1977-06-17 Krupp Gmbh Plieuse pour voile
DE3908987A1 (de) * 1988-03-22 1989-10-05 Rockwool Ab Verfahren und vorrichtung zum gefalteten auslegen einer werkstoffmatte
DE9212215U1 (de) * 1992-09-10 1994-01-13 Autefa Maschinenfab Vorrichtung zur Herstellung eines Vlieses aus Fasermaterial

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1574604A1 (de) * 2004-03-08 2005-09-14 Oskar Dilo Maschinenfabrik KG Speichervorrichtung
US7320155B2 (en) 2004-03-08 2008-01-22 Oskar Dilo Maschinenfabrik Kg Web buffering device
DE102004063401A1 (de) * 2004-12-23 2006-07-20 Autefa Automation Gmbh Vliesleger und Verfahren zum Führen eines Flors
EP1870499A2 (de) 2006-06-21 2007-12-26 ERKO Trützschler GmbH Kreuzleger
DE102006028448A1 (de) * 2006-06-21 2007-12-27 ERKO Trützschler GmbH Kreuzleger
EP1870499A3 (de) * 2006-06-21 2008-06-18 ERKO Trützschler GmbH Kreuzleger
EP1975287A1 (de) * 2007-03-30 2008-10-01 Oskar Dilo Maschinenfabrik KG Vliesleger
EP1975286A1 (de) * 2007-03-30 2008-10-01 Oskar Dilo Maschinenfabrik KG Vliesleger
US7690086B2 (en) 2007-03-30 2010-04-06 Oskar Dilo Maschinenfabrik Kg Fleece-laying apparatus
ITPD20080382A1 (it) * 2008-12-23 2010-06-24 Texnology S R L Dispositivo di trattamento di un velo di carda
WO2010073221A3 (en) * 2008-12-23 2010-09-02 Texnology S.R.L. Device for treatment of a card web
US8458999B2 (en) 2011-01-19 2013-06-11 Oskar Dilo Maschinenfabrik Kg Fleece layer
CN102605486B (zh) * 2011-01-19 2014-07-30 奥斯卡迪罗机械制造公司 纤维铺设机
CN102605485A (zh) * 2011-01-19 2012-07-25 奥斯卡迪罗机械制造公司 纤维铺设机
CN102605486A (zh) * 2011-01-19 2012-07-25 奥斯卡迪罗机械制造公司 纤维铺设机
US8495799B2 (en) 2011-01-19 2013-07-30 Oskar Dilo Maschinenfabrik Kg Fleece layer
EP2479321A1 (de) 2011-01-19 2012-07-25 Oskar Dilo Maschinenfabrik KG Vliesleger
CN102605485B (zh) * 2011-01-19 2014-08-20 奥斯卡迪罗机械制造公司 纤维铺设机
CN104583477A (zh) * 2012-07-13 2015-04-29 恒天(奥地利)控股有限公司 交叉式铺网机
WO2014009520A1 (de) 2012-07-13 2014-01-16 Hi Tech Textile Holding Gmbh Vliesleger
DE202012102597U1 (de) 2012-07-13 2013-10-14 Hi Tech Textile Holding Gmbh Vliesleger
CN104583477B (zh) * 2012-07-13 2017-03-15 恒天(奥地利)控股有限公司 交叉式铺网机
US9909236B2 (en) 2012-07-13 2018-03-06 Hi Tech Textile Holding Gmbh Cross-lapper
EP3015577A1 (de) 2014-10-27 2016-05-04 Oskar Dilo Maschinenfabrik KG Vliesleger
EP3015578A1 (de) 2014-10-27 2016-05-04 Oskar Dilo Maschinenfabrik KG Vliesleger
EP3150753A1 (de) 2015-09-30 2017-04-05 Oskar Dilo Maschinenfabrik KG Vorrichtung zum fördern einer florbahn oder eines vlieses
IT201900008706A1 (it) 2019-06-12 2020-12-12 Mirco Battistella Faldatore per veli di carda
US20210123164A1 (en) * 2019-10-23 2021-04-29 Autefa Solutions Germany Gmbh Shielding device, shielding process and crosslapper
US11866853B2 (en) * 2019-10-23 2024-01-09 Autefa Solutions Germany Gmbh Shielding device, shielding process and crosslapper

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