WO2005113872A1 - Dispositif monte sur un metier a filer, pour etirer et compacter une meche de fibres discontinues - Google Patents

Dispositif monte sur un metier a filer, pour etirer et compacter une meche de fibres discontinues Download PDF

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Publication number
WO2005113872A1
WO2005113872A1 PCT/EP2005/001856 EP2005001856W WO2005113872A1 WO 2005113872 A1 WO2005113872 A1 WO 2005113872A1 EP 2005001856 W EP2005001856 W EP 2005001856W WO 2005113872 A1 WO2005113872 A1 WO 2005113872A1
Authority
WO
WIPO (PCT)
Prior art keywords
staple fiber
vacuum channel
traversing
drafting system
compacting
Prior art date
Application number
PCT/EP2005/001856
Other languages
German (de)
English (en)
Inventor
Norbert Brunk
Original Assignee
Maschinenfabrik Rieter Ag
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 Maschinenfabrik Rieter Ag filed Critical Maschinenfabrik Rieter Ag
Publication of WO2005113872A1 publication Critical patent/WO2005113872A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/26—Drafting machines or arrangements without fallers or like pinned bars in which fibres are controlled by one or more endless aprons
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/58—Arrangements for traversing drafting elements

Definitions

  • the invention relates to a device on a spinning machine for stretching and compacting a staple fiber bandage, with a drafting system containing an upper apron with an upper apron cage, with a compression zone, with an air-permeable transport means transporting the staple fiber bandage through the compression zone, with one associated with the compression zone and covered by the means of transport a vacuum channel arranged in the suction slot and with a traversing device assigned to the drafting system and which changes the staple fiber structure transversely to its transport direction and to whose traversing drive the vacuum channel is also connected.
  • the exit roller pair of a drafting system defines an exit nip line up to which the spin twist imparted to the spun thread runs back.
  • the means for compacting often contain a suction slot, with the aid of which the staple fiber dressing is to be pneumatically bundled. Since the staple fiber dressing, as is known, is usually changed in the drafting system transversely to its transport direction, so that the straps and the roller covers do not wear out too early, there is a risk that the shimmering staple fiber structure will not be caught by the suction slot.
  • a comparable device has become known from DE 100 51 413 A1, in which the vacuum channel is also oscillated together with the staple fiber structure.
  • the lower roller of the pair of output rollers is designed as a suction roller, on the upper roller of which the compression takes place between an output pressure roller of the drafting system and a subsequent swirl stop roller.
  • a device is known from German patent 882 066, in which the compression of a staple fiber structure is carried out in the main draft zone of a drafting system.
  • a bottom strap is made air-permeable in a central part and connected to a suction slot.
  • a traversing device is not disclosed for this device.
  • the invention is based on the object of designing a device of the type mentioned at the outset as little complexity as possible.
  • the object is achieved in that the top apron of the drafting system is the means of transport and that the vacuum channel in the top apron cage is slidably guided.
  • the staple fiber structure is compacted in the main drafting zone of the drafting system, which on the one hand leads to a shortened construction and on the other hand requires fewer components.
  • the top apron designed to be air-permeable according to the invention now contains an additional function which serves to compress the staple fiber association.
  • the top strap cage belonging to the top strap also has an additional function in that it not only serves to guide the top strap, but also as a holder and sliding guide for the suction channel.
  • Double-apron drafting units are customary, and there is also a lower apron table with lower aprons, then the staple fiber bandage is guided in the compression zone between the air-permeable transport means designed as an upper apron and the lower apron.
  • the top strap itself does not need to oscillate, since the vacuum channel containing the suction slot is guided in synchronism with the oscillation movement of the staple fiber structure.
  • a common upper apron cage and a common vacuum channel are advantageously provided for the top aprons of two adjacent spinning stations, in adaptation to the printing roller twins already customary without the devices according to the invention.
  • the vacuum channel is expediently attached on both sides of the top apron cage to a traversing rod of the traversing drive.
  • FIG. 1 shows a partially sectioned side view through a drafting system with an integrated compression zone
  • Figure 2 is a view in the direction of arrow II of Figure 1 on the top apron cage, the vacuum channel and the traversing device.
  • the device according to FIGS. 1 and 2 is part of a spinning machine, in particular a ring spinning machine, and serves to stretch and compress a staple fiber structure 1.
  • the drafting arrangement 2 shown can be provided for one spinning station or also jointly for two adjacent spinning stations 3, 4. In a known manner, it contains an input roller pair (not shown), a middle apron roller pair 5,6 and an output roller pair 7,8 and is consequently designed as a three-cylinder drafting system.
  • the lower rollers 5 and 7 belonging to the roller pairs 5, 6 and 7, 8 are preferably connected to driven roller strands which run in the machine longitudinal direction.
  • the pressure rollers 6 and 8 assigned to the lower rollers 5 and 7, on the other hand, are each assigned to a spinning unit 3, 4 and, if appropriate, connected to the adjacent pressure rollers, as provided in FIG. 2, to form so-called pressure roller twins.
  • the apron roller pair 5.6 leads in a known A lower apron 9 and an upper apron 10, wherein a so-called guide table 11 and a tensioning element 12 are assigned to the lower apron 9 and an upper apron cage 13 is assigned to the upper apron 10.
  • the pressure rollers 6 and 8 are held in a known manner on a load carrier 14 and pressed resiliently onto the associated lower rollers 5 and 7.
  • a staple fiber bandage 1 designed as a sliver or roving is drawn in the transport direction A to the desired fineness in a known manner.
  • the draft zone of the drafting unit 2 is then ended at an output clamping line 15 of the output roller pair 7, 8. From here, the resulting thread 16 receives its spin twist, whereby it is fed in the direction of delivery B to a swirl element, not shown, for example an annular spindle.
  • the aforementioned spinning triangle is formed on the thread 16, which has a disadvantageous effect on the thread quality, since it has edge fibers which are only imperfectly screwed into the spun thread 16 and thus practically do not contribute to its strength.
  • the drafting unit 2 contains a so-called compression zone 17, in which the staple fiber structure 1 is bundled or compacted by laterally combining its edge fibers.
  • the base of the spinning triangle is reduced at the starting clamping line 15, so that the resulting thread 16 becomes more tear-resistant, more uniform and less hairy.
  • the staple fiber bundle 1 to be compressed is transported in the main draft zone 18 of the drafting unit 2 through the compression zone 17 using an air-permeable transport means 19.
  • the transport means 19 is the already mentioned upper strap 10, which can be designed as a fabric band or as a rubber strap perforated like a pearl cord.
  • the transport means 19 slides over the outer contour of the upper apron cage 13 designed as a hollow profile, inside which a vacuum channel 20 is arranged in a manner to be described in more detail below.
  • the Vacuum channel 20 per upper apron 10 has a suction slot 22 which extends essentially in the direction of transport A and whose width corresponds approximately to the width of the staple fiber structure 1 in the compressed state.
  • the suction slot 22 is covered by the transport means 19.
  • the suction slot 22 can be straight or optionally inclined up to about 7 ° to the transport direction A and possibly tapered. Its length takes up about 40 to 60% of the length of the main warping area 18.
  • An inlet compressor 23 arranged upstream of the drafting system 2 is connected to a traversing device 24 which shifts the inlet compressor 23 and thus also the staple fiber assembly 1 transversely to the transport direction A over a certain traversing stroke of approximately 6 to 10 mm in accordance with the arrow directions C and D.
  • This traversing movement primarily serves the purpose of preventing the top aprons 13 of the drafting unit 2 and the pressure rollers 8 of the pair of output rollers 7, 8 from wearing out too quickly.
  • the traversing movement is achieved by a traversing rod 25 connected to a traversing drive, not shown, which is connected directly to the inlet compressor 23 and which is coupled to the vacuum duct 20 via driving rods 26 and 27 in a manner to be described in more detail below.
  • the suction slots 22 can also change according to the traversing directions C and D. This counteracts the risk that the staple fiber dressing 1 will not arrive exactly where the suction slot 22 of the compression zone 17 begins. The reception of the fibers should always take place at the same point in the suction slot 22, because it can only be assumed that all the fibers are compressed in the same way. This is now possible because the vacuum channel 20 also participates in the traversing movement of the traversing device 24.
  • the vacuum channel 20 is slidably guided in the upper apron cage 13.
  • the vacuum channel 20 is not only designed as an oscillating suction element, but the upper apron cage 13 becomes both the holder of the vacuum channel 20 and the carrier of the air-permeable transport means 19.
  • the oscillating vacuum channel 20 is arranged in a sliding bearing and can be on both sides of the Upper apron cage 13 are fastened to the traversing rod 25 by means of the driving rods 26 and 27.
  • a common top apron cage 13 and a common vacuum channel 20 are used for the top aprons 10 of two adjacent spinning positions 3 and 4. It is advantageous if the upper contour of the guide table 11 and thus also the compression zone 17 are designed to be slightly arched and thus penetrate the connecting plane between the apron roller pair 5,6 and the output roller pair 7,8 upwards and downwards.
  • the top apron 10 can be structured in addition to its air permeability on its surface, for example with an arrow structure which supports the compression of the staple fiber dressing 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

L'invention concerne un dispositif monté sur un métier à filer, pour étirer et compacter une mèche de fibres discontinues. Le banc d'étirage qui se présente sous forme de banc d'étirage à double lanière contient dans sa zone d'étirage principale, une zone de compactage, à travers laquelle la mèche de fibres discontinues est transportée avec un élément de transport (10, 19) perméable à l'air. Une fente d'aspiration (22) disposée sur un canal de dépression (20) et recouverte par l'élément de transport (19) est associée à la zone de compactage. Un dispositif d'ensouplage croisé, qui fait passer la mèche de fibres discontinues (1) transversalement à son sens de transport est en outre associé au banc d'étirage et le canal de dépression (20) est également raccordé à son système d'entraînement. Selon l'invention, la lanière supérieure (10) du banc d'étirage constitue l'élément de transport (19) perméable à l'air et le canal de dépression (20) est guidé coulissant dans le logement de la lanière supérieure (13).
PCT/EP2005/001856 2004-05-21 2005-02-23 Dispositif monte sur un metier a filer, pour etirer et compacter une meche de fibres discontinues WO2005113872A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410026519 DE102004026519A1 (de) 2004-05-21 2004-05-21 Vorrichtung an einer Spinnmaschine zum Verstrecken und Verdichten eines Stapelfaserverbandes
DE102004026519.4 2004-05-21

Publications (1)

Publication Number Publication Date
WO2005113872A1 true WO2005113872A1 (fr) 2005-12-01

Family

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Family Applications (1)

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PCT/EP2005/001856 WO2005113872A1 (fr) 2004-05-21 2005-02-23 Dispositif monte sur un metier a filer, pour etirer et compacter une meche de fibres discontinues

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Country Link
DE (1) DE102004026519A1 (fr)
WO (1) WO2005113872A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007013233A1 (de) * 2007-03-15 2008-09-18 Oerlikon Textile Gmbh & Co. Kg Streckwerk mit Verdichtungsvorrichtung
CN101235562B (zh) * 2008-03-03 2010-06-02 上海市毛麻纺织科学技术研究所 连杆同步横动集合器装置
CN102345190A (zh) * 2010-07-30 2012-02-08 罗托卡夫特公司 带有倾斜的主牵伸区的牵伸装置
CN102586964A (zh) * 2010-12-20 2012-07-18 株式会社丰田自动织机 纺纱机的牵伸装置
CN107794608A (zh) * 2016-08-31 2018-03-13 株式会社丰田自动织机 纺纱机的纤维束集束装置
WO2019115346A1 (fr) * 2017-12-15 2019-06-20 Maschinenfabrik Rieter Ag Banc d'étirage pour un métier à filer
EP3604646A1 (fr) * 2018-08-03 2020-02-05 Saurer Spinning Solutions GmbH & Co. KG Unité de banc d'étirage et banc d'étirage pour un métier à filer
US11879186B2 (en) 2018-05-24 2024-01-23 Saurer Spinning Solutions Gmbh & Co. Kg Drafting system and drafting system unit for a spinning machine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007031993A1 (de) * 2007-07-09 2009-01-15 Oerlikon Textile Gmbh & Co. Kg Spinnmaschinenstreckwerk mit Verdichtungsvorrichtungen
DE102015112662A1 (de) * 2015-07-31 2017-02-02 Maschinenfabrik Rieter Ag Verdichtereinheit für ein Streckwerk einer Textilmaschine
DE102015013571A1 (de) * 2015-10-20 2017-04-20 Saurer Germany Gmbh & Co. Kg Doppelriemchen-Streckwerk, Führungsmittel und Verfahren zum Verdichten eines Faserverbands
DE102020117391A1 (de) 2020-07-01 2022-01-05 Maschinenfabrik Rieter Ag Spinnereimaschine und Schwenkeinrichtung für einen Führungstisch einer Spinnereimaschine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3145208A1 (de) * 1980-11-14 1982-06-09 Murata Kikai K.K., Kyoto "streckverfahren und streckwerk fuer eine spinnmaschine"
DE10033188A1 (de) * 2000-07-07 2002-01-17 Stahlecker Fritz Vorrichtung zum Verstrecken und Verdichten eines Faserverbandes
DE10051413A1 (de) * 2000-09-01 2002-03-14 Rieter Ag Maschf Spinnmaschine mit einer Verdichtungseinrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3145208A1 (de) * 1980-11-14 1982-06-09 Murata Kikai K.K., Kyoto "streckverfahren und streckwerk fuer eine spinnmaschine"
DE10033188A1 (de) * 2000-07-07 2002-01-17 Stahlecker Fritz Vorrichtung zum Verstrecken und Verdichten eines Faserverbandes
DE10051413A1 (de) * 2000-09-01 2002-03-14 Rieter Ag Maschf Spinnmaschine mit einer Verdichtungseinrichtung

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007013233A1 (de) * 2007-03-15 2008-09-18 Oerlikon Textile Gmbh & Co. Kg Streckwerk mit Verdichtungsvorrichtung
CN101235562B (zh) * 2008-03-03 2010-06-02 上海市毛麻纺织科学技术研究所 连杆同步横动集合器装置
CN102345190A (zh) * 2010-07-30 2012-02-08 罗托卡夫特公司 带有倾斜的主牵伸区的牵伸装置
CN102586964A (zh) * 2010-12-20 2012-07-18 株式会社丰田自动织机 纺纱机的牵伸装置
CN107794608A (zh) * 2016-08-31 2018-03-13 株式会社丰田自动织机 纺纱机的纤维束集束装置
WO2019115346A1 (fr) * 2017-12-15 2019-06-20 Maschinenfabrik Rieter Ag Banc d'étirage pour un métier à filer
US11879186B2 (en) 2018-05-24 2024-01-23 Saurer Spinning Solutions Gmbh & Co. Kg Drafting system and drafting system unit for a spinning machine
EP3604646A1 (fr) * 2018-08-03 2020-02-05 Saurer Spinning Solutions GmbH & Co. KG Unité de banc d'étirage et banc d'étirage pour un métier à filer
JP2020020086A (ja) * 2018-08-03 2020-02-06 ザウラー スピニング ソリューションズ ゲー・エム・ベー・ハー ウント コー． カー・ゲーＳａｕｒｅｒ Ｓｐｉｎｎｉｎｇ Ｓｏｌｕｔｉｏｎｓ ＧｍｂＨ ＆ Ｃｏ． ＫＧ 紡績機用のドラフト装置ユニットおよびドラフト装置
CN110791843A (zh) * 2018-08-03 2020-02-14 卓郎纺织解决方案两合股份有限公司 用于纺纱机的牵伸系统单元和牵伸系统
JP7416577B2 (ja) 2018-08-03 2024-01-17 ザウラー スピニング ソリューションズ ゲー・エム・ベー・ハー ウント コー． カー・ゲー 紡績機用のドラフト装置ユニットおよびドラフト装置

Also Published As

Publication number Publication date
DE102004026519A1 (de) 2005-12-15

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