EP3812491A1 - Dispositif de serrage pour un banc d'étirage d'un métier à filature ainsi que banc d'étirage pour un dispositif de serrage - Google Patents

Dispositif de serrage pour un banc d'étirage d'un métier à filature ainsi que banc d'étirage pour un dispositif de serrage Download PDF

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Publication number
EP3812491A1
EP3812491A1 EP20202675.3A EP20202675A EP3812491A1 EP 3812491 A1 EP3812491 A1 EP 3812491A1 EP 20202675 A EP20202675 A EP 20202675A EP 3812491 A1 EP3812491 A1 EP 3812491A1
Authority
EP
European Patent Office
Prior art keywords
compression
suction
guide roller
suction opening
sliver
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
EP20202675.3A
Other languages
German (de)
English (en)
Other versions
EP3812491B1 (fr
Inventor
Erkan Ince
Dieter Fähnrich
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.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Saurer Spinning Solutions 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 Saurer Spinning Solutions GmbH and Co KG filed Critical Saurer Spinning Solutions GmbH and Co KG
Publication of EP3812491A1 publication Critical patent/EP3812491A1/fr
Application granted granted Critical
Publication of EP3812491B1 publication Critical patent/EP3812491B1/fr
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Anticipated expiration legal-status Critical

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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
    • D01H5/26—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
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides

Definitions

  • the invention relates to a compression device for a drafting system of a spinning machine, in particular a ring spinning machine, for compressing a drawn fiber sliver, with a compression zone in which a suction flow is generated perpendicular to the fiber transport direction by means of a suction opening.
  • Drafting systems for spinning machines in particular ring spinning machines, are known in various configurations from the prior art. Their task is to stretch or to draw a sliver fed to the drafting system, thereby reducing the cross-section of the fibers. In order to produce a uniform sliver, which is necessary for the formation of a uniform yarn, the fibers must be shifted next to one another as evenly as possible during the warping.
  • spinning machines in particular ring spinning machines, in which a twisting element is directly attached to the drafting system
  • a so-called spinning triangle is created at the pair of output rollers of the drafting system.
  • This spinning triangle has a significantly greater width than the thread being created and has edge fibers which are not properly integrated into the thread being created and therefore do not contribute to the strength of the thread to be spun.
  • Known compression devices of the type mentioned at the beginning are usually designed to operate pneumatically. It is already known that fiber bands are combined by suction at a perforation track extending along the fiber course, which passage opening is permeable for the suction flow has, through which air is sucked in by means of an induced draft.
  • the perforation tracks extend in the transport direction of a compacting belt which is arranged circumferentially around a suction opening of a suction shoe.
  • the compression strap can be formed from a close-meshed fabric which has a plurality of through openings permeable to the suction flow, the suction shoe then having a narrow slot in the area of the suction opening that delimits the suction opening and extends in the transport direction, over which only the Induced draft acts on the sliver and compresses it.
  • the invention is based on the object of providing a compression device and a drafting system for a compression device which enables the production of a uniform yarn.
  • the invention achieves the object by a compression device with the features of claim 1 and a drafting system with the features of claim 7.
  • Advantageous further developments of the compression device are specified in the dependent claims 2 to 6.
  • the compression device according to the invention is characterized by a compression element with a guide roller, which can be rotatably arranged in the fiber transport direction in the area of the compression zone opposite the suction opening so that the fiber sliver comes into engagement with the guide roller.
  • the guide roller in engagement with the sliver presses the sliver in the direction of the suction opening.
  • the rotatability of the guide rollers prevents this a dragging of the sliver over the contact surface of the guide roller, which would negatively affect the yarn quality.
  • the guide roller forms a fiber guide which, due to its rotational movement, moves along in the direction of transport of the fiber sliver.
  • the fiber guidance provided by the guide roller enables the production of fiber ribbons with only a few thick and thin places.
  • the sliver produced with the compression device according to the invention enables the production of a yarn with a particularly high uniformity, strength and less hairiness, which results in particular from the fact that the sliver is also guided in the compression zone.
  • the compaction device preferably comprises a suction shoe having the suction opening, an exit upper roller and compression aprons wrapping around the suction shoe in the area of the suction opening with defined through openings permeable to the suction flow and an exit lower roller adjacent to the compression apron in the area of the exit top roller.
  • the guide roller is rotatable in the direction of rotation of the compression belt in the area of the suction shoe opposite the compression belt, so that the sliver comes into engagement with the guide roller.
  • the direction of rotation of the compression belt determines the fiber transport direction and the compression zone is in the area of the suction shoe.
  • the guide roller in engagement with the sliver presses the sliver in the area in front of the output roller pair of the compression device, which is formed from the output top roller and output lower roller, the fiber band against the compression apron, whereby a reliable fiber guide is achieved in front of the output roller pair, which is especially from a short non-guided
  • the sliver is guided through the compression device essentially over its entire transport length, this being done first in the area of the suction shoe over the guide roller and then over the pair of output rollers. This further supports the production of a yarn with a particularly high level of evenness, strength and less hairiness.
  • the configuration of the mounting of the compression element carrying the guide roller as well as the mounting of the guide roller on the compression element is basically freely selectable. There is thus the possibility of arranging the compression element in a stationary manner with a constant pressure force acting on the sliver opposite the suction opening or opposite the compression apron. According to an advantageous embodiment of the invention, however, it is provided that the compression element and / or the guide roller are mounted so as to be adjustable in the direction of the suction opening or the compression apron.
  • the pressure between the guide roller and the compression apron in a way that is optimal for fiber guidance by adjusting the guide roller on the compression element and / or by adjusting the compression element in the direction of the suction opening.
  • the pressure force can be reduced by increasing the distance or the pressure force can be increased by reducing the distance, whereby manufacturing tolerances can be compensated and adjustments to the thickness of the fiber ribbons can be made in a particularly convenient manner.
  • the compression element carrying the guide roller has a support body which is mounted so as to be longitudinally displaceable in the direction of the suction opening.
  • the support body with which the guide roller is supported against the compression apron is adjustable in its distance from the compression apron and can be fixed in the set position.
  • the design of the displaceability of the support body is basically freely selectable. According to an advantageous embodiment, however, it is provided that the support body is mounted so as to be longitudinally displaceable on a support rail extending in the direction of the suction opening.
  • the use of a support rail which is designed in such a way that the support body can only be displaced in the direction of the longitudinal axis of the support rail and transverse movements due to the Design of the connection between the support body and support rail are blocked, improves the displaceability and positioning of the guide roller with respect to the compression apron in a complementary manner. Misalignments of the guide roller with respect to the compression apron can be avoided particularly reliably due to the interaction of the support body with the support rail, whereby the yarn quality can be guaranteed in a particularly reliable manner.
  • a free rotatability of the guide roller already ensures a high yarn quality, the rotational movement of the guide roller resulting from the interaction with the sliver moved in the transport direction, which sets the guide roller in rotation.
  • the guide roller is coupled to a drive unit that drives it.
  • a drive unit makes it possible to adjust the guide roller independently of the transport speed of the sliver and its interaction with the guide roller. Via a drivable guide roller, relative movements of the sliver with respect to the contact surface of the guide roller that is in contact with the sliver can thus be avoided in a particularly reliable manner, which enables a yarn of particularly high quality to be produced.
  • the drafting system according to the invention has a compression device according to one or more of the above configurations.
  • the existing pair of output rollers of the drafting device forms the compression device, so that the drafting device can be designed in a particularly simple and compact manner.
  • the compacting apron runs around the output top roller of the drafting system and the suction shoe, so that a separate output roller pair forming the compaction device can be dispensed with.
  • the pair of output rollers of the compaction device adjoins the pairs of drafting rollers, and these can also be designed together as a particularly compact unit.
  • a drafting system 2 equipped with a compression device 1 is shown.
  • the drafting system 2 has two first, second and third roller pairs 15, 16, 17 arranged at a distance from one another, between which a sliver passed between the rollers of the roller pairs 15, 16, 17 is drawn due to the different rotational speeds of the roller pairs 15, 16, 17 or is warped.
  • the third pair of rollers 17 is followed by the compacting device 1, which also has two pairs of output rollers 18, which are arranged at a distance from one another and each formed from an output upper roller 7 and an output lower roller 8.
  • the compacting device 1 also has two suction shoes 3 arranged at a distance from one another in the area between the output roller pairs 18 and the third roller pairs 17.
  • the suction shoes 3 are connected via suction pipes 13 to a suction device (not shown here) and each have a suction opening 4 directed in the direction of the sliver to be fed through.
  • the top output rollers 7 and the suction shoes 3 are each wrapped by a compression strap 5 in such a way that it covers the suction opening 4.
  • the compacting apron 5 has a plurality of through openings which are arranged one behind the other in the transport direction and form a perforation 6.
  • the perforation 6 enables the passage of the suction flow provided by the suction device at the suction openings 4 of the suction shoes 3, as a result of which the fibers of the drawn fiber sliver are moved transversely to the transport direction in the direction of the perforation 6 during the passage through the compression device 1 and are compressed in the process.
  • the drafting system 2 has a compression element 9 which has two guide rollers 10 rotatably mounted on a support body 11.
  • the guide rollers 10 lie - in the transport direction of the sliver in front of the pair of output rollers 18 - in the area of the suction shoe 3 on the compression apron 5 and press the stretched fiber tape against the compression apron 5, thereby achieving good fiber guidance.
  • the support body 11 is mounted on a support rail 12 so that it can be adjusted longitudinally in the direction of the compression apron 5 and can be fixed in the set position via an elongated hole 14.
  • the fiber guidance generated by the guide roller 10 and the compression apron 5 can be conveniently adapted, for example, to manufacturing tolerances and different thicknesses of the slivers.
EP20202675.3A 2019-10-21 2020-10-20 Guides condenseurs de fibres pour un banc d'étirage d'un métier à filature ainsi qu'un banc d'étirage Active EP3812491B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019128326.4A DE102019128326A1 (de) 2019-10-21 2019-10-21 Verdichtungsvorrichtung für ein Streckwerk einer Spinnmaschine sowie Streckwerk für eine Verdichtungsvorrichtung

Publications (2)

Publication Number Publication Date
EP3812491A1 true EP3812491A1 (fr) 2021-04-28
EP3812491B1 EP3812491B1 (fr) 2024-03-20

Family

ID=72964487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20202675.3A Active EP3812491B1 (fr) 2019-10-21 2020-10-20 Guides condenseurs de fibres pour un banc d'étirage d'un métier à filature ainsi qu'un banc d'étirage

Country Status (4)

Country Link
EP (1) EP3812491B1 (fr)
JP (1) JP2021066993A (fr)
CN (1) CN112760765B (fr)
DE (1) DE102019128326A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022220180A1 (fr) 2021-04-12 2022-10-20 Ａｇｃ株式会社 Copolymère fluoré, procédé de production d'un copolymère fluoré, composition de copolymère fluoré et article en caoutchouc réticulé

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19837181A1 (de) * 1998-08-17 2000-02-24 Stahlecker Fritz Vorrichtung zum Verdichten eines verstreckten Faserverbandes
DE10016655A1 (de) * 2000-04-04 2001-10-11 Stahlecker Fritz Druckwalzeneinheit für ein Streckwerk einer Spinnmaschine
DE10056185A1 (de) * 2000-11-13 2002-05-23 Zinser Textilmaschinen Gmbh Streckwerk für eine Spinnereimaschine
DE10127741C2 (de) 2001-06-08 2003-05-08 Zinser Textilmaschinen Gmbh Streckwerk für eine Spinnereimaschine
DE102012106781A1 (de) * 2012-07-26 2014-05-15 Maschinenfabrik Rieter Ag Saugkörper für eine pneumatisch arbeitende Faserbündelungseinrichtung sowie damit ausgestattete Spinnereimaschine
JP2018035463A (ja) * 2016-08-31 2018-03-08 株式会社豊田自動織機 紡機における繊維束集束装置

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DE19726694A1 (de) * 1996-09-30 1998-04-02 Rieter Ag Maschf Spinnmaschine für das Kompaktspinnen mit einem Streckwerk
DE19815054C5 (de) * 1998-04-03 2007-06-14 Saurer Gmbh & Co. Kg Verfahren und Spinnmaschine zum Herstellen von Coregarn
DE19860201B4 (de) * 1998-12-24 2008-12-18 Maschinenfabrik Rieter Ag Vorrichtung zum Spinnen eines Fadens aus mehreren Fadenkomponenten
DE10053442A1 (de) * 2000-10-27 2002-05-08 Rieter Ag Maschf Spinnmaschine
DE10158001A1 (de) * 2001-11-22 2003-06-05 Stahlecker Gmbh Wilhelm Vorrichtung an einer Spinnmaschine zum Verdichten eines Faserverbandes
DE10159048A1 (de) * 2001-11-30 2003-06-18 Rieter Ag Maschf Spinnmaschine
DE10214641B4 (de) * 2002-04-02 2007-02-22 Saurer Gmbh & Co. Kg Pneumatische Verdichtungseinrichtung für einen Faserverband und Verfahren zum pneumatischen Verdichten eines Faserverbandes
DE10322575A1 (de) * 2003-05-20 2004-12-09 Saurer Gmbh & Co. Kg Ringspinnmaschine mit Verdichtungsvorrichtungen
CN1664192A (zh) * 2005-03-09 2005-09-07 南通大学 利用前置吸附滚筒凝聚纤维束的紧密纺方法
DE102005045451B4 (de) * 2005-09-22 2008-05-08 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum Verdichten eines Faserverbandes
CN201254625Y (zh) * 2008-09-05 2009-06-10 东台纺织机械有限责任公司 须条凝聚装置及其环锭精纺机
CN102644134B (zh) * 2012-05-22 2014-10-29 江南大学 一种四罗拉超大牵伸紧密纺装置
CN202786565U (zh) * 2012-08-03 2013-03-13 江南大学 一种双区气流控制牵伸装置
JP7251345B2 (ja) * 2019-06-19 2023-04-04 株式会社豊田自動織機 精紡機

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19837181A1 (de) * 1998-08-17 2000-02-24 Stahlecker Fritz Vorrichtung zum Verdichten eines verstreckten Faserverbandes
DE10016655A1 (de) * 2000-04-04 2001-10-11 Stahlecker Fritz Druckwalzeneinheit für ein Streckwerk einer Spinnmaschine
DE10056185A1 (de) * 2000-11-13 2002-05-23 Zinser Textilmaschinen Gmbh Streckwerk für eine Spinnereimaschine
DE10127741C2 (de) 2001-06-08 2003-05-08 Zinser Textilmaschinen Gmbh Streckwerk für eine Spinnereimaschine
DE102012106781A1 (de) * 2012-07-26 2014-05-15 Maschinenfabrik Rieter Ag Saugkörper für eine pneumatisch arbeitende Faserbündelungseinrichtung sowie damit ausgestattete Spinnereimaschine
JP2018035463A (ja) * 2016-08-31 2018-03-08 株式会社豊田自動織機 紡機における繊維束集束装置

Also Published As

Publication number Publication date
DE102019128326A1 (de) 2021-04-22
JP2021066993A (ja) 2021-04-30
CN112760765B (zh) 2023-02-17
CN112760765A (zh) 2021-05-07
EP3812491B1 (fr) 2024-03-20

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