EP2738296A1 - Procédé et dispositif pour le transport et le traitement d'une bande de marchandise - Google Patents

Procédé et dispositif pour le transport et le traitement d'une bande de marchandise Download PDF

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Publication number
EP2738296A1
EP2738296A1 EP12195251.9A EP12195251A EP2738296A1 EP 2738296 A1 EP2738296 A1 EP 2738296A1 EP 12195251 A EP12195251 A EP 12195251A EP 2738296 A1 EP2738296 A1 EP 2738296A1
Authority
EP
European Patent Office
Prior art keywords
web
roller
transfer roller
treatment
transport
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.)
Granted
Application number
EP12195251.9A
Other languages
German (de)
English (en)
Other versions
EP2738296B1 (fr
Inventor
Claudio Cinquemani
Detlef Frey
Hans-Georg Geus
Peter Schlag
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.)
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Original Assignee
Reifenhaeuser GmbH and Co KG Maschinenenfabrik
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
Priority to ES12195251.9T priority Critical patent/ES2573139T3/es
Application filed by Reifenhaeuser GmbH and Co KG Maschinenenfabrik filed Critical Reifenhaeuser GmbH and Co KG Maschinenenfabrik
Priority to EP12195251.9A priority patent/EP2738296B1/fr
Priority to SI201230572A priority patent/SI2738296T1/sl
Priority to PL12195251T priority patent/PL2738296T3/pl
Priority to US14/093,168 priority patent/US9051673B2/en
Priority to CN201310757169.7A priority patent/CN103863869B/zh
Priority to MYPI2013702339A priority patent/MY171438A/en
Publication of EP2738296A1 publication Critical patent/EP2738296A1/fr
Application granted granted Critical
Publication of EP2738296B1 publication Critical patent/EP2738296B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C15/00—Calendering, pressing, ironing, glossing or glazing textile fabrics
    • D06C15/02—Calendering, pressing, ironing, glossing or glazing textile fabrics between co-operating press or calender rolls
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H3/00—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length
    • D04H3/08—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating
    • D04H3/14—Non-woven fabrics formed wholly or mainly of yarns or like filamentary material of substantial length characterised by the method of strengthening or consolidating with bonds between thermoplastic yarns or filaments produced by welding

Definitions

  • the invention relates to a method for the transport and treatment of a web, in particular a web of fibers.
  • the invention further relates to a device for carrying out this method.
  • the web is preferably a nonwoven web of fibers or continuous filaments.
  • treatment is in the context of the invention for a plurality of processing measures for a web. Treatment means in particular the solidification of a web and preferably the solidification of a nonwoven web by calendering.
  • nonwoven webs or spunbond webs are known from practice in various embodiments and in particular for nonwoven webs or spunbond webs as webs.
  • endless filaments are deposited in the form of a random orientation on an endlessly circulating filament.
  • the resulting nonwoven web is then normally consolidated, in particular by thermobonding in a calender of, for example, two heated calender rolls.
  • the nonwoven web is guided through the gap or nip between two calender rolls.
  • the nonwoven web must be transferred from the Ablagesiebband or from a arranged at the end of Ablagesiebbandes transfer roller to the calender.
  • the invention the technical problem of providing a method of the type mentioned above, with which even at high production speeds optimum strength of the web, in particular also optimal strengths transverse to the transport direction of the web, can be achieved.
  • the invention is further based on the technical problem of specifying a corresponding device for carrying out the method.
  • the invention teaches a method for transporting and treating a web, in particular a web of fibers or filaments, wherein the web is first transported over a transport surface and then via a arranged at the end of the transport surface rotating transfer roller, wherein the Web of the transfer roller is transferred to or at least one arranged at a distance from the transfer roller and in the transport direction of the web behind the transfer roller rotating treatment roller, wherein the transport of the web is carried out with the proviso, in particular the distance a between the transfer roller and the treatment roller with the It is stipulated that the web wraps the transfer roller before its transfer to the treatment roller with a wrap angle ⁇ of 15 ° to 90 °.
  • the web is a nonwoven web and in particular a nonwoven web or a spunbonded nonwoven made of continuous filaments.
  • the continuous filaments are then expediently made of thermoplastic material.
  • webs of staple fibers or the like can also be used in the context of the invention.
  • the transport surface is a horizontal transport surface or a substantially horizontal transport surface.
  • the web is transported via the transport surface or with the transport surface to the transfer roller. It is within the scope of the invention that the web there first follows the rotation of the transfer roller down and that thereby the wrap of the transfer roller with the wrap angle ⁇ results. The web does not have to rest directly on the transfer roller.
  • a conveyor belt or deposit conveyor belt running over the transfer roller is arranged between the transfer roller and the material web. Empfohlenedeem the wrapping of the transfer roller on the treatment roller facing side of the transfer roller takes place.
  • the web is not supported or supported in the space between transfer roller and treatment roller and as it were hanging freely in the room. It is still in the Frame of the invention that the web in the distance space between transfer roller and treatment roller sags as it were due to gravity. It is recommended that the transfer roller and the treatment roller rotate in the same direction or rotate with the same direction of rotation. Preferably, transfer roller and treatment roller rotate at the same rotational speed or at substantially the same rotational speed.
  • the treatment roller is used in particular for the treatment or processing of the web.
  • the treatment roller of the consolidation of the web and is used in particular - as further explained below - part of a calender. In principle, however, the treatment roller could also simply transport or transport the material web.
  • the wrap angle ⁇ is expediently measured between a first imaginary leg which runs through the axis of rotation of the transfer roller and is arranged perpendicularly or substantially perpendicular to the transport surface and a second imaginary leg which passes through the axis of rotation of the transfer roller and the last or lowest point of contact Web runs with the transfer roller.
  • the invention is based on the finding that the resulting force for the detachment of the web from the transfer roller or from the over the transfer roller extending Ablagesiebband can be minimized by the wrapping of the transfer roller according to the invention. In the method known from practice, an inventive wrap of the transfer roller is not provided.
  • the detachment of the web takes place here, as a rule, almost immediately after transfer of the web from the transport surface to the transfer roller and thus tangentially to the transport surface or the Ablagesiebbandraum.
  • the force resulting from the removal of the web is relatively large at this point and is particularly caused by the adhesion of the web on the substrate or on the filament filter belt. By this force, the product properties of the web can be adversely affected and this force can lead to a demolition of the web.
  • the force is significant in previously known methods and leads to significant changes in product properties, in particular to a reduction in the strength of the web and especially the strength of the web transverse to the transport direction.
  • the invention is based on the finding that due to the looping according to the invention, the resultant force directed to the treatment roller or to the calender can be considerably reduced or minimized. In this way, negative influences on the product properties during detachment of the material web from the substrate or from the storage belt can be largely avoided.
  • the web is passed over the top of the transfer roller and over the top of the treatment roller and that the top of the transfer roller and the top of the treatment roller are arranged either at the same level or substantially at the same height or with a height difference are arranged, which is a maximum of 20%, preferably at most 10% and more preferably at most 5% of the diameter of the transfer roller.
  • the upper side of a roller means the highest point of a roller. Said height difference is measured between the top of the transfer roller and the top of the treatment roller.
  • the treatment roller is a lower treatment roller and the web is through a nip or between the lower treatment roller and an overlying upper treatment roller out.
  • the two treatment rollers are preferably used for compaction and / or solidification of the web.
  • the two treatment rollers have the same diameter or substantially the same diameter.
  • the treatment rollers are part of a calender.
  • the lower and upper treatment rolls are two calender rolls.
  • the web is solidified when passing between the two calender rolls - in particular by thermobonding. It is recommended that at least one calender roll is heated.
  • both calender rolls can be heated. Empfohlene junk takes place in the calender or between the two calender rolls a solidification of a spunbonded by thermal bonding instead.
  • bonding points or connection points are produced between the endless filaments of a spunbonded nonwoven.
  • the continuous filaments are expediently made of thermoplastic material.
  • the transport of the web is carried out with the proviso, in particular the distance a between the transfer roller and the treatment roller or the lower treatment roller is set with the proviso that the web the treatment roller with a wrap angle ⁇ of 10th ° wraps around to 90 °, preferably from 20 ° to 60 °.
  • the wrap angle ⁇ is greater than 15 °.
  • the wrap angle ⁇ is advantageously measured between a first imaginary leg which passes through the axis of rotation of the treatment roller and the lower treatment roller and through the uppermost point of this treatment roller and a second imaginary leg, which also through the axis of rotation of the treatment roller and the lower Treatment roller extends and through the first and the lowest point of contact between the web and this treatment roller.
  • the transport of the web is carried out with the proviso, in particular the distance a between the transfer roller and the treatment roller or the lower treatment roller set with the proviso that the web the transfer roller before its transfer to the treatment roller with a wrap angle ⁇ from 40 to 90%, preferably from 60 to 90% and very preferably from 75 to 90% wraps.
  • the distance a between the transfer roller and the treatment roller or the lower treatment roller is set to be less than 15%, preferably less than 10%, and more preferably less than 8% of the diameter of the transfer roller.
  • the distance a is at least 3% or at least 4% or at least 5% of the diameter of the transfer roller.
  • the distance a is in particular measured between the two nearest surface points of the transfer roller on the one hand and the treatment roller or the lower treatment roller on the other.
  • the distance a is 8 to 30 mm, in particular 10 to 25 mm, preferably 10 to 20 mm and particularly preferably 12 to 18 mm.
  • the invention also relates to a device for transporting and treating a web, in particular a web of fibers, wherein a transport surface for the flat transport of the web to a arranged at the end of the transport surface transfer roller is provided, wherein furthermore at least one treatment roller for the acquisition of Web of the transfer roller is present and wherein the treatment roller is arranged in the transport direction of the web behind the transfer roller with a distance a to the transfer roller and wherein the distance a between the transfer roller and the treatment roller is set with the proviso that the transported web the transfer roller before her Transfer to the treatment roller with a wrap angle ⁇ of more than 15 ° wraps.
  • the transport surface is part of an endlessly circulating conveyor belt, in particular an endlessly circulating Ablagesiebbandes.
  • the conveyor belt or provides the Ablagesiebband the transport surface, in particular the horizontal or substantially horizontal transport surface available.
  • the transfer roller is a guide roller for the conveyor belt or for the endless circulating Ablagesiebband. Then, the transfer roller is arranged at a front end of a conveyor belt aggregate or a Ablagesiebbandaggregates. In Umschlingungs Championship the transfer roller is then arranged between the transfer roller and the web, the conveyor belt or the Ablagesiebband.
  • the diameter of the treatment roller or calender roller in particular the diameter of the two superimposed treatment rollers or calender rollers is greater than the diameter of the transfer roller and is preferably at least 1.5 times, preferably 2 times the diameter of the transfer roller.
  • the invention is based on the finding that due to the inventive transport and / or treatment measures for the web compared to the measures known from practice, no adverse effects on product properties result. In particular, there is no damage to the web. Particularly noteworthy is that especially at high production speeds optimal strength of the web and especially optimal strength of the web can be achieved transversely to the machine direction or transport direction. It should also be emphasized that the measures according to the invention can be implemented in comparison to the measures implemented hitherto without significant effort or expense. The above-mentioned advantages are particularly pronounced in webs in the form of nonwoven webs, especially in spunbonded nonwovens made of continuous filaments and especially in spunbonded nonwovens made of thermoplastic material. According to a particularly preferred embodiment of the invention, the continuous filaments of a spunbonded fabric treated according to the invention consist of polypropylene or substantially of polypropylene.
  • the Fig. 1 shows an apparatus for carrying out the method according to the invention for the transport and treatment of a web.
  • a nonwoven web or a spunbonded nonwoven 1 of continuous filaments 2 the endless filaments 2 preferably being made of polypropylene.
  • the continuous filaments 2 are recommended spun from a spinneret, not shown, suitably cooled and preferably stretched and then deposited on a Ablagesiebband 3 to the nonwoven web or spunbonded 1 (left side of Fig. 1 ).
  • the filing screen belt 3 is preferably an endlessly circulating conveyor belt or filing screen belt 3.
  • the filing screen belt 3 expediently provides a horizontal transport surface 8 for the spunbonded web 1.
  • the nonwoven web or the spunbonded nonwoven 1 is in the Fig. 1 transported from left to right and that has been indicated by an arrow A.
  • the Ablagesiebband 3 is guided over a rotating transfer roller 4 and thus the web or the spunbonded web 1 is transported via the horizontal transport surface 8 of the Ablagesiebbandes 3 to this transfer roller 4 at the end of the transport surface 8.
  • the spunbonded fabric 1 is then preferred and, in the exemplary embodiment, transferred from the transfer roller 4 to two treatment rollers in the form of two calender rollers 5, 6 arranged one above the other.
  • the spunbonded fabric 1 is passed through the nip 7 between the calender rolls 5, 6 and solidified there by thermobonding.
  • the lower calender roll 5 may be heated accordingly.
  • the distance a between the transfer roller 4 and the lower calender roller 5 is set with the proviso that the web wraps around the transfer roller 4 with a wrap angle ⁇ of preferably 30 ° to 90 °. In the exemplary embodiment amounts this wrap angle ⁇ about 65 °. Due to the distance between the transfer roller 4 and the calender rollers 5, 6 and due to gravity, the spunbonded 1 follows the rotation of the transfer roller 4 down. As a result, the looping with the wrap angle ⁇ comes about. The distance a between the transfer roller 4 and lower calender roller 5 further causes the spunbonded web 1 between the transfer roller 4 and the calender rollers 5, 6 as it were sags.
  • the distance a is preferably and in the embodiment between the nearest surface points of transfer roller 4 on the one hand and lower calender roller 5 on the other hand measured. This distance a further causes the spunbonded fabric 1, the lower calender roll 5 wraps around with a wrap angle ⁇ , which is in particular 15 ° to 60 °. Characterized a higher residence time of the spunbonded fabric 1 is achieved at the heated lower calender roll 5 and thereby the spunbonded fabric 1 is preheated, so that the thermobonding in nip 7 between the calender rolls 5, 6 can be performed more effectively.
  • the wrap angle ⁇ is about 55 ° in the embodiment.
  • the spunbonded fabric 1 is recommended to be guided over the upper side of the transfer roller 4 and over the upper side of the lower calendering roller 5.
  • the upper side of the transitional roller 4 and the upper side of the lower calendering roller 5 are arranged at the same height or approximately at the same height.
  • the diameter of the calender rolls 5, 6 is greater than the diameter of the transfer roller 4.
  • the diameter of the calender rolls 5, 6 more than twice the diameter of the transfer roller 4.
  • the distance a between the transfer roller 4 and the lower calender roll 5 is preferably set with the proviso that, in particular, the wrap angle ⁇ according to the invention results and preferably also the wrap angle ⁇ at the lower calender roll 5 results.
  • the Fig. 2 shows the relationships of forces during the detachment of the web or the spunbonded web 1 from the Ablagesiebband 3 on the transfer roller 4. Above the force ratios for a method according to the prior art and below for the inventive method using force vectors are illustrated.
  • the detachment force F A is in both cases the same size and aligned orthogonal to the Ablagesiebband 3.
  • the force F K which is necessary for transport into the nip 7 of the calender rolls 5, 6, is directed in the method according to the prior art almost tangentially to the direction of the deposit screen belt 3.
  • the resulting force F R is very high in the prior art method. As a result, the product properties of spunbonded fabric 1 can be adversely affected.
  • the method according to the invention in Fig.
  • the detachment force F A is already aligned in the direction Nip 7 of the calender rolls 5, 6. Therefore, here the force F K required for transport into the nip 7 becomes very small, so that also the resultant force F R is significantly smaller than the resultant force in the method according to the prior art.
  • the product properties of spunbonded fabric 1 are therefore less adversely affected than in the prior art process.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Replacement Of Web Rolls (AREA)
EP12195251.9A 2012-12-03 2012-12-03 Procédé et dispositif pour le transport et le traitement d'une bande de marchandise Active EP2738296B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP12195251.9A EP2738296B1 (fr) 2012-12-03 2012-12-03 Procédé et dispositif pour le transport et le traitement d'une bande de marchandise
SI201230572A SI2738296T1 (sl) 2012-12-03 2012-12-03 Postopek in naprava za transport in obdelavo traku materiala
PL12195251T PL2738296T3 (pl) 2012-12-03 2012-12-03 Sposób i urządzenie do transportu i do obróbki wstęgi materiału
ES12195251.9T ES2573139T3 (es) 2012-12-03 2012-12-03 Procedimiento y dispositivo para el transporte y para al tratamiento de una banda de tejido
US14/093,168 US9051673B2 (en) 2012-12-03 2013-11-29 Method and apparatus for conveying and treating a web
CN201310757169.7A CN103863869B (zh) 2012-12-03 2013-12-03 输送和处理带状货物用的方法和装置
MYPI2013702339A MY171438A (en) 2012-12-03 2013-12-03 Method and apparatus for transporting and for treatment of a material web

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12195251.9A EP2738296B1 (fr) 2012-12-03 2012-12-03 Procédé et dispositif pour le transport et le traitement d'une bande de marchandise

Publications (2)

Publication Number Publication Date
EP2738296A1 true EP2738296A1 (fr) 2014-06-04
EP2738296B1 EP2738296B1 (fr) 2016-03-02

Family

ID=47469757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12195251.9A Active EP2738296B1 (fr) 2012-12-03 2012-12-03 Procédé et dispositif pour le transport et le traitement d'une bande de marchandise

Country Status (7)

Country Link
US (1) US9051673B2 (fr)
EP (1) EP2738296B1 (fr)
CN (1) CN103863869B (fr)
ES (1) ES2573139T3 (fr)
MY (1) MY171438A (fr)
PL (1) PL2738296T3 (fr)
SI (1) SI2738296T1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716802A (en) * 1986-01-20 1988-01-05 Corfine Inc. Scrap reduction system for rotary die cutter
US5484641A (en) * 1993-11-01 1996-01-16 Rotter; Martin J. Process for fixing plastic reinforcing pins into non-woven filamentary material and product produced by the process
JP2001288667A (ja) * 2000-03-31 2001-10-19 Polymer Processing Res Inst 遠心紡糸フィラメントの螺旋状集積不織布およびその製法、緯並列フィラメント不織布およびその製法
US20010035978A1 (en) * 2000-04-28 2001-11-01 Toyoaki Sugaya Image recording apparatus
WO2003021024A1 (fr) * 2001-08-31 2003-03-13 Bba Nonwovens Simpsonville, Inc. Procede de fabrication d'une bande de tissu non tisse
WO2006107695A2 (fr) * 2005-04-01 2006-10-12 North Carolina State University Non tisses legers bicomposante a haute resistance a la traction/dechirure

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4364892A (en) * 1978-07-25 1982-12-21 Helmut Rehlen Process for surface treatment of foamed sheets
US4566781A (en) * 1981-12-09 1986-01-28 Coulter Systems Corporation Method of apparatus for liquid developing of electrostatic images in an electrophotographic imaging system including a looped image carrier
US4814204A (en) * 1987-11-02 1989-03-21 Scott Paper Company Notched doctored single kiss roll applicator
US5787809A (en) * 1993-12-11 1998-08-04 Eltex-Elektrostatik Gmbh Printed web smoothing device and method
US7319838B2 (en) * 2005-03-02 2008-01-15 Fuji Xerox Co., Ltd. Fixing unit and image forming apparatus with a peeling member

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4716802A (en) * 1986-01-20 1988-01-05 Corfine Inc. Scrap reduction system for rotary die cutter
US5484641A (en) * 1993-11-01 1996-01-16 Rotter; Martin J. Process for fixing plastic reinforcing pins into non-woven filamentary material and product produced by the process
JP2001288667A (ja) * 2000-03-31 2001-10-19 Polymer Processing Res Inst 遠心紡糸フィラメントの螺旋状集積不織布およびその製法、緯並列フィラメント不織布およびその製法
US20010035978A1 (en) * 2000-04-28 2001-11-01 Toyoaki Sugaya Image recording apparatus
WO2003021024A1 (fr) * 2001-08-31 2003-03-13 Bba Nonwovens Simpsonville, Inc. Procede de fabrication d'une bande de tissu non tisse
WO2006107695A2 (fr) * 2005-04-01 2006-10-12 North Carolina State University Non tisses legers bicomposante a haute resistance a la traction/dechirure

Also Published As

Publication number Publication date
CN103863869A (zh) 2014-06-18
SI2738296T1 (sl) 2016-07-29
ES2573139T3 (es) 2016-06-06
CN103863869B (zh) 2018-02-09
EP2738296B1 (fr) 2016-03-02
US20140150305A1 (en) 2014-06-05
MY171438A (en) 2019-10-15
PL2738296T3 (pl) 2016-08-31
US9051673B2 (en) 2015-06-09

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