WO2009062589A1 - Banc d'étirage - Google Patents

Banc d'étirage Download PDF

Info

Publication number
WO2009062589A1
WO2009062589A1 PCT/EP2008/008958 EP2008008958W WO2009062589A1 WO 2009062589 A1 WO2009062589 A1 WO 2009062589A1 EP 2008008958 W EP2008008958 W EP 2008008958W WO 2009062589 A1 WO2009062589 A1 WO 2009062589A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressure
roller
holding device
force
loading arm
Prior art date
Application number
PCT/EP2008/008958
Other languages
German (de)
English (en)
Inventor
Edgar Bay
Joachim Diedrich
Ralf-Stefan ROßBACH
Original Assignee
Oerlikon Textile Components Gmbh
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 Oerlikon Textile Components Gmbh filed Critical Oerlikon Textile Components Gmbh
Priority to RU2010123991/12A priority Critical patent/RU2478145C2/ru
Priority to CN2008801156151A priority patent/CN101855395B/zh
Priority to EP08850099A priority patent/EP2215293B1/fr
Priority to JP2010533456A priority patent/JP2011503381A/ja
Priority to ES08850099T priority patent/ES2397242T3/es
Publication of WO2009062589A1 publication Critical patent/WO2009062589A1/fr

Links

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
    • D01H5/46—Loading arrangements
    • D01H5/52—Loading arrangements using fluid pressure
    • 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
    • D01H5/46—Loading arrangements
    • D01H5/52—Loading arrangements using fluid pressure
    • D01H5/525—Loading arrangements using fluid pressure for top roller arms
    • 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 present invention relates to a drafting system according to the preamble of claim 1.
  • a three-cylinder drafting with Doppelriemchenaggregat and a pneumatic compression device are used at the jobs of a ring spinning machine.
  • the compacting device is arranged downstream of the pair of drawing rollers of the drafting system for bundling and compacting protruding edge fibers of a stretched fiber structure, thereby achieving a reduction in hairiness and an increase in the strength of the yarn.
  • Such an arrangement of drafting and compression device is described in DE 102 27 463 Cl for a three-cylinder drafting system with pneumatically loaded top rollers.
  • the compacting device has a lower roller looped around by a perforated compacting belt and a pressure roller assigned to the lower roller on the upper side, which is pressed against the roller with a defined force.
  • a disadvantage of the known compressor device has been found that the load exerted by the pressure roller on the lower roller is set individually for each drafting system on the ring spinning machine, which inaccuracies in the set load at each retrofitted compression device of a drafting system are accompanied.
  • Object of the present invention is to develop the drafting such that a predetermined uniform load for all pressure rollers of the compressor devices is achieved on the ring spinning machine.
  • the object is achieved by the characterizing feature of claim 1.
  • the pressure roller of the compression device is integrated on an additional link in a holding device in the upper roller support and loading arm, and that the pressure roller is acted upon via a pressure plate with the pressure force of the pneumatic pressure body. Due to the central provision of the air pressure for the pressure body is at each drafting of a textile machine, the same air pressure, so that the pressure plates of the upper rollers and the pressure plate of the pressure roller of each drafting are applied uniformly with pressure.
  • the resulting advantage of integration into the drafting system thus consists in the application of pressure to the pressure roller by means of the pneumatic pressure hull and the extremely small scattering of the contact forces that can be achieved by the pressure roller on the lower roller of the compression device.
  • the forces applied to the top rollers or the pressure roller can be put into relation to one another.
  • the relative to each other in relation load of the respective upper rollers and the pressure roller on the drafting system comes in a variation of the load during a game change to fruition.
  • the possible through the pneumatic load stepless adjustability of the load by the variation of the air pressure at a central point of the textile machine allows a precisely matched adaptation of the applied load after a batch change, which in contrast to the prior art, wherein the pressure roller by a spring with a force can only be done gradually.
  • the adjustment of the pneumatic load is in a range of less than 0.3 daN as opposed to load jumps of 4-6 daN in a conventional prior art spring.
  • eliminating the integration of the pressure roller in the drafting a required for attachment of the pressure roller on the upper roller support and loading device, which serves to support the pressure roller.
  • elastic means for limiting the pressure applied by the pressure body pressure force can be provided, which are connected to the pressure plate and a relative to the handlebar immovable part of the drafting system.
  • means for the defined limitation of the pressure force takes into account the fact that the pressure roller may only be acted upon with a lower compressive force, but the reduction of the size of the pressure plate reaches its limits.
  • the counterforce generating component has a suitable spring characteristic curve, preferably a linear spring characteristic curve, in order to obtain the advantage of stepless adjustability by the pneumatic loading of the pressure roller.
  • the component may be designed as a arranged on the holding device compression spring, which is supported on the pressure plate.
  • the compression spring is component, which can be easily arranged in the drafting system.
  • the component can be embodied as at least one resilient element which can be loaded on a train and which is arranged on the upper roller carrying and loading arm and on the handlebar. Furthermore, the component can be designed as at least one resilient element to train on spring, which is arranged on the holding device and on the handlebar.
  • the component can also be embodied as at least one resilient element which can be loaded on a tension, which is arranged on the holding device and on the pressure plate.
  • the component may be embodied as at least one resilient element capable of being tensioned, which is arranged on the upper roller carrying and loading arm and on the pressure plate.
  • the spring element or the compression spring can be designed as a helical spring, leaf spring or plastic spring.
  • non-elastic means for limiting the pressure applied by the pressure body pressure force may be provided, which are connected to the holding device.
  • the non-elastic means may also be connected to the top roller support and loading arm.
  • a support is provided as a non-elastic means, which is arranged adjacent to the pressure plate.
  • the support is designed in its vertical extent such that it has approximately the same working height, as the pressure plate.
  • the pressure force applied by the pressure body is partially derived on the support and from there to the holding device or directly to the top roller support and load arm.
  • the support may be at least partially surrounding the pressure plate in the vertical direction by the support, for example, has a U-shaped profile.
  • Fig. 1 is a partial sectional view of a top roller carrying and loading arm
  • FIG. 2 shows a schematic view of the holding device according to FIG. 1 with a plate-shaped relief element
  • FIG. 3 shows a schematic view of a holding device according to FIG. 1 with a helical compression spring
  • FIG. 4 shows a schematic view of the holding device according to FIG. 1 with a leaf spring
  • FIG. 5 shows a schematic view of the holding device according to FIG. 1 with a hollow cylindrical plastic spring
  • Fig. 6 is a schematic view of the holding device according to FIG. 1 with a tension spring.
  • Fig. 1 shows a simplified partial sectional view of a top roller carrying and loading arm 1 of a drafting system with pneumatically loaded top rollers 5, 6, 7.
  • the top roller support and loading arm 1 is mounted on a support 18 about an axis 19 and in an upper End position and a lower spinning operating position pivotable.
  • the support 18 is disposed on a machine-length support rod 20, which is designed with a supply of compressed air for the upper roller support and loading arm 1.
  • Such storage for the upper roller support and loading arm 1 is described for example in DE 44 29 671 Cl.
  • the top rollers 5, 6, 7 are against assigned, not shown for reasons of simplification bottom rollers pressed, between which a sliver is stretched.
  • the top rollers 5, 6, 7 are each arranged on a handlebar 3 in a holding device 2 on the upper roller support and loading arm 1.
  • the holding devices 2 are adjustable in the longitudinal direction of the upper roller support and loading arm 1, after a fixation, not shown here, which can act positively or positively, has been solved in order to achieve a variable adjustment of the field widths of pre-draft and main delay.
  • the links 3 are made of plastic or metal and have at their upper end in each case a pressure plate 9, as indicated for the réelleoberwalze 7 in Fig. 1. On this pressure plate 9 is applied by means of a tubular pressure body 4, which extends at least over the adjustable by adjusting the holding devices 2 field width range, a pressure load.
  • the acting as a pneumatic spring pressure body 4 is directly or indirectly with the pressure plates 9 in connection.
  • the link 3 of the respective holding device 2 is guided vertically movable up and down, so that the load, the magnitude of which depends on the size of the pressure bar 9, is transmitted to the respective top rollers 5, 6, 7.
  • the top rollers 5, 6, 7 are pressed in this way with a defined force against the bottom rollers.
  • the output top roller 7 is followed by a pressure roller 8, which is part of a compression device.
  • a pressure roller 8 is part of a compression device.
  • an additional holding device 10 is arranged on the upper roller support and loading arm 1, in which also a handlebar 11 is guided vertically up and down movable, which serves to receive the pressure roller 8.
  • the pressure roller 8 is not against a shown Verdichtungsriemchen the compacting device pressed by the pressure roller 8 is also acted upon by a compressive force.
  • the handlebar 11 a pressure plate 12 which is acted upon by the pressure body 4 with a compressive force.
  • FIGS. 2 to 6 show different embodiments of the means to achieve a reduction of the contact pressure respectively the spring travel.
  • FIG. 2 shows the holding device 10 and the handlebar 11 in an unloaded position in which the upper roller supporting and loading arm 1 is opened, so that the handlebar 11 within the holding device 10 drops down. If the upper roller carrying and loading arm 1 is closed, the handlebar 11 assumes its working position, in which the Pressure plate 12 and a support 13 arranged adjacent thereto at about the same working height.
  • the support 13 is designed as a non-elastic means for reducing the contact pressure.
  • the support 13 is a rigid extension on the holding device 10, on which the pressure body 4 rests in the working position of the drafting system. As a result, the partial discharge of the pressure force generated by the pneumatic pressure body 4 via the support 13 to the holding device 10.
  • the pneumatic pressure body 4 exerts its compressive force on the support 13 and the pressure plate 12, wherein the pressure plate 12 is no longer fully loaded.
  • the support 13 thus reduces the pressure exerted by the pressure body 4 on the pressure roller 8 pressure force.
  • the support 13 can also be designed so that it encloses the pressure plate 12 in the vertical direction partially or completely.
  • FIG. 3 shows a schematic view of the holding device 10 of the pressure roller 8 according to FIG. 1 with a component producing a counter-force for reducing the contact pressure.
  • the component is designed as a helical compression spring 14 and is supported on the pressure plate 12 and the holding device 10 and generates when loaded by the pressure body 4 a counter to the direction of action of the pressurization by the pressure body 4 directed counterforce.
  • FIG. 4 shows a schematic view of the holding device 10 with a leaf spring 15 running, the counterforce generating component.
  • the arrangement of the leaf spring 15 is in the same manner as in the
  • Selected helical compression spring 14 by the leaf spring 15 is supported on the pressure plate 12 and the holding device 10.
  • the arrangement of a hollow cylindrical plastic spring 16 may be provided, as shown in Fig. 5.
  • springs to limit the spring travel of the pressure hull 4 allows the relatively simple replacement of the springs, wherein springs with different spring stiffness are used to adjust the pressure applied to the pressure roller 8 pressure load.
  • FIG. 6 shows, in a simplified schematic illustration, an embodiment with at least one spring element 17 which can be loaded with tension and which can be fastened with its one end to the handlebar 11 and the other end to the upper roller support and loading arm 1.
  • a counterforce is generated by the tension spring 17, which reduces the spring travel of the pressure hull 4 in order to adjust the force applied by the pressure roller 8 on the Verêtrriemchen compressive force.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Delivering By Means Of Belts And Rollers (AREA)

Abstract

La présente invention a pour objet un banc d'étirage, comprenant un bras de support et de charge de cylindres supérieurs (1), sur lequel sont agencés respectivement des cylindres supérieurs (5, 6, 7) chargés pneumatiquement et disposés sur une bielle (3) pouvant coulisser verticalement dans un dispositif de maintien (2), un élément de pression pneumatique (4) agencé dans le bras de support et de charge de cylindres supérieurs (1) pour appliquer une force de pression sur la bielle (3), ainsi qu'un cylindre compresseur (8) d'un dispositif de compression, qui comprend en outre un cylindre inférieur, contre lequel est pressé le cylindre compresseur (8) à l'aide d'une force de pression, le cylindre compresseur (8) du dispositif de compression étant intégré à une bielle supplémentaire (11) dans un dispositif de maintien (10) dans le bras de support et de charge de cylindres supérieurs (1), et le cylindre compresseur (8) étant alimenté, par le biais d'un plateau de compression (12), en force de pression de l'élément de pression pneumatique (4).
PCT/EP2008/008958 2007-11-16 2008-10-23 Banc d'étirage WO2009062589A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
RU2010123991/12A RU2478145C2 (ru) 2007-11-16 2008-10-23 Вытяжной механизм
CN2008801156151A CN101855395B (zh) 2007-11-16 2008-10-23 牵伸装置
EP08850099A EP2215293B1 (fr) 2007-11-16 2008-10-23 Banc d'étirage
JP2010533456A JP2011503381A (ja) 2007-11-16 2008-10-23 ドラフト機構
ES08850099T ES2397242T3 (es) 2007-11-16 2008-10-23 Manuar

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007055052.0 2007-11-16
DE200710055052 DE102007055052A1 (de) 2007-11-16 2007-11-16 Streckwerk

Publications (1)

Publication Number Publication Date
WO2009062589A1 true WO2009062589A1 (fr) 2009-05-22

Family

ID=40278855

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2008/008958 WO2009062589A1 (fr) 2007-11-16 2008-10-23 Banc d'étirage

Country Status (7)

Country Link
EP (1) EP2215293B1 (fr)
JP (1) JP2011503381A (fr)
CN (1) CN101855395B (fr)
DE (1) DE102007055052A1 (fr)
ES (1) ES2397242T3 (fr)
RU (1) RU2478145C2 (fr)
WO (1) WO2009062589A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104389053B (zh) * 2014-11-20 2017-02-01 四川成发普睿玛机械工业制造有限责任公司 一种气动加压摇架握持管与握持安装机构
CH718231B1 (de) * 2019-11-07 2023-09-29 Rotorcraft Ag Oberer Arm für eine Spinnmaschine.

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056513B (de) * 1955-12-06 1959-04-30 Spinnerei Karl Marx Veb Rohrfoermiger mit einem zaehfluessigen Belastungsmittel gefuellter Trag- und Belastungsarm fuer die Oberwalzen von Streckwerken an Spinnereimaschinen
GB873253A (en) * 1958-04-29 1961-07-19 Spinnerei Karl Marx Veb Improvements in and relating to drafting frames for textile machines
DE4335889A1 (de) * 1993-10-21 1995-04-27 Skf Textilmasch Komponenten Oberwalzenträger für Streckwerke von Spinnereimaschinen
DE4429671C1 (de) * 1994-08-20 1996-01-04 Skf Textilmasch Komponenten Streckwerk für Spinnmaschine
EP0964945B1 (fr) * 1997-03-03 2001-06-27 Zinser Textilmaschinen GmbH Systeme d'etirage pour metiers a filer comportant une zone de mise en faisceaux de fibres et metier a anneau ainsi equipe
US20010054280A1 (en) * 2000-06-21 2001-12-27 Marzoli S.P.A. Unit for compacting a bundle of textile fibres drawn in a spinning machine
DE10227463C1 (de) * 2002-06-20 2003-10-16 Zinser Textilmaschinen Gmbh Ringspinnmaschine mit Streckwerken und Verdichtungsvorrichtungen
GB2425541A (en) * 2005-04-29 2006-11-01 Truetzschler Gmbh & Co Kg Apparatus for weighting the drafting system rollers in a spinning machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279515B (de) * 1961-05-13 1968-10-03 Skf Kugellagerfabriken Gmbh Oberwalzen-Trag- und Belastungsarm fuer Spinnereimaschinen-Streckwerke
DE19708410B4 (de) * 1997-03-03 2007-03-29 Saurer Gmbh & Co. Kg Streckwerk für Spinnmaschinen mit einer Faserbündelungszone
DE19837181A1 (de) * 1998-08-17 2000-02-24 Stahlecker Fritz Vorrichtung zum Verdichten eines verstreckten Faserverbandes
CN2656444Y (zh) * 2003-10-13 2004-11-17 宋范川 并条机的气囊式摇架

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056513B (de) * 1955-12-06 1959-04-30 Spinnerei Karl Marx Veb Rohrfoermiger mit einem zaehfluessigen Belastungsmittel gefuellter Trag- und Belastungsarm fuer die Oberwalzen von Streckwerken an Spinnereimaschinen
GB873253A (en) * 1958-04-29 1961-07-19 Spinnerei Karl Marx Veb Improvements in and relating to drafting frames for textile machines
DE4335889A1 (de) * 1993-10-21 1995-04-27 Skf Textilmasch Komponenten Oberwalzenträger für Streckwerke von Spinnereimaschinen
DE4429671C1 (de) * 1994-08-20 1996-01-04 Skf Textilmasch Komponenten Streckwerk für Spinnmaschine
EP0964945B1 (fr) * 1997-03-03 2001-06-27 Zinser Textilmaschinen GmbH Systeme d'etirage pour metiers a filer comportant une zone de mise en faisceaux de fibres et metier a anneau ainsi equipe
US20010054280A1 (en) * 2000-06-21 2001-12-27 Marzoli S.P.A. Unit for compacting a bundle of textile fibres drawn in a spinning machine
DE10227463C1 (de) * 2002-06-20 2003-10-16 Zinser Textilmaschinen Gmbh Ringspinnmaschine mit Streckwerken und Verdichtungsvorrichtungen
GB2425541A (en) * 2005-04-29 2006-11-01 Truetzschler Gmbh & Co Kg Apparatus for weighting the drafting system rollers in a spinning machine

Also Published As

Publication number Publication date
RU2010123991A (ru) 2011-12-27
EP2215293B1 (fr) 2013-01-02
CN101855395B (zh) 2011-12-07
DE102007055052A1 (de) 2009-05-20
CN101855395A (zh) 2010-10-06
EP2215293A1 (fr) 2010-08-11
JP2011503381A (ja) 2011-01-27
RU2478145C2 (ru) 2013-03-27
ES2397242T3 (es) 2013-03-05

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