WO2002042535A1 - Dispositif sur un metier a filer pour la compression d'un ruban de fibres - Google Patents

Dispositif sur un metier a filer pour la compression d'un ruban de fibres Download PDF

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Publication number
WO2002042535A1
WO2002042535A1 PCT/EP2001/011447 EP0111447W WO0242535A1 WO 2002042535 A1 WO2002042535 A1 WO 2002042535A1 EP 0111447 W EP0111447 W EP 0111447W WO 0242535 A1 WO0242535 A1 WO 0242535A1
Authority
WO
WIPO (PCT)
Prior art keywords
roller
conveyor belt
compression zone
lower roller
sliding surface
Prior art date
Application number
PCT/EP2001/011447
Other languages
German (de)
English (en)
Inventor
Gernot SCHÄFFLER
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
Priority to JP2002545231A priority Critical patent/JP2004514800A/ja
Publication of WO2002042535A1 publication Critical patent/WO2002042535A1/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
    • D01H5/70—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
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/14—Details
    • D01H1/20—Driving or stopping arrangements
    • D01H1/22—Driving or stopping arrangements for rollers of drafting machines; Roller speed control
    • 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
    • D01H5/86—Aprons; Apron supports; Apron tensioning arrangements

Definitions

  • the invention relates to a device on a spinning machine for compacting a fiber structure, with a pair of output rollers that delimit the draft zone of a drafting system and contain a driven lower roller and a pressure roller, with a compression zone following the draft zone, with an air-permeable conveyor belt that transports the fiber structure through the compression zone assigned to the compression zone, the conveyor belt guiding the conveyor belt on a sliding surface, with a suction slot located in the sliding surface, with a clamping roller which delimits the end of the compression zone and is pressed onto the sliding surface, with a deflecting roller which excites the conveyor belt and with drive elements for the conveyor belt coupled to the bottom roller ,
  • a so-called spin triangle is created at the exit nip line of the exit roller pair. This is due to the fact that the stretched fiber structure leaves the drafting system with a certain width and is twisted into a thread of relatively small diameter.
  • the spinning triangle contains edge fibers that are not properly incorporated into the twisted thread and thus contribute little or nothing to the strength of the spun thread. It has therefore recently started to assign a so-called compression zone to the draft zone of the drafting system, which in turn is delimited on the outlet side by a delivery clamping line. Only then is the thread spun. The fibers are bundled or compressed in the compression zone, whereby the fiber structure is so narrow when leaving the delivery clamping line that the dreaded spinning triangle no longer arises. The spun thread then becomes more even, firmer and less hairy.
  • a device of the type mentioned at the outset for compacting a fiber structure is known from DE 199 11 333 A1.
  • the drive of the conveyor belt is derived from the lower roller of the pair of output rollers over several friction stages.
  • the lower roller drives the pressure roller pressed against it, to which in turn the clamping roller delimiting the compression zone on the outlet side is connected via a drive belt.
  • the clamping roller which presses the conveyor belt against the sliding surface of the suction channel, then in turn drives the conveyor belt by friction.
  • a disadvantage of the known drive is the fact that the clamping roller must be pressed against the conveyor belt with a minimum pressure to enable the friction drive, which pressure is higher than would be required for the function of a swirl stop. In conjunction with the friction of the conveyor belt on the sliding surface, this leads to increased wear of the suction channel in the area of the delivery clamping line.
  • the invention is based on the object of deriving the drive for the conveyor belt from the lower roller of the pair of output rollers and still making the pressure of the pinch roller against the sliding surface only as large as is necessary for a swirl stop.
  • the deflection roller is arranged in the region of the lower roller and forms a wedge gap with it, and in that the drive elements contain an intermediate roller which lies in the wedge gap on the lower roller and on the deflection roller.
  • the conveyor belt is now no longer driven by friction, as in the prior art mentioned at the beginning, at which it slides over a sliding surface, but is clamped between two rotating rollers or rollers at the location of its friction drive.
  • the deflection roller is sprung against the intermediate roller. Because of the same direction of movement of the deflection roller and the intermediate roller, there is no significant wear at the point of the drive transmission, despite a sufficiently high contact pressure.
  • the pinch roller which in turn is now driven by the conveyor belt, only needs to apply the pressure required for a twist stop at the delivery nip line, so that at the critical point of the clamping line, the closing of the suction channel becomes significantly less. At the same time, the power requirement for the drive becomes smaller.
  • the intermediate roller is provided with a suitable friction lining.
  • the intermediate roller only rests on the lateral ring bundles of the deflection roller and the conveyor belt is carried along by the wrap angle on the deflection roller, it is more advantageous if the conveyor belt is clamped between the deflection roller and the intermediate roller at its drive point.
  • the speed of the conveyor belt should be somewhat greater than the peripheral speed of the pair of output rollers.
  • the lower roller is provided with an enlarged diameter ring collar on which the intermediate roller rests. This collar can be an easily exchangeable disc, so that fine adjustment of the tensioning delay is possible if necessary.
  • FIG. 1 shows a partially sectioned side view of a device according to the invention
  • Figure 2 is a view in the direction of arrow II of Figure 1 of the actual compression zone and the drive elements of the conveyor belt.
  • a spinning machine in particular a ring spinning machine
  • a device for compacting a fiber structure 1 From the drafting unit 2 itself, only a pair of output rollers 3 and a pair of apron rollers 4 in front of it are drawn with a bottom strap 5 and an top strap 6.
  • the output roller pair 3 in turn consists of a driven lower roller 7 and a pressure roller 8, which defines an output nip line 9 with the lower roller 7.
  • the draft zone of the drafting unit 2 is ended at the output clamping line 9.
  • a sliver or roving 10 is drawn in the transport direction A to the desired fineness in a known manner.
  • a compression zone 11 in which the stretched, but still spinning-free fiber structure 1 is bundled or compressed.
  • An air-permeable conveyor belt 12 belongs to the compression zone 11 and can be designed as a thin, fine-mesh fabric belt made of polyamide threads.
  • the conveyor belt 12 transports the fiber structure 1 to be compressed through the compression zone 11 and is guided over a stationary sliding surface 13.
  • the sliding surface 13 is preferably the outer contour of a suction channel 14 which is under vacuum and which preferably extends over a plurality of spinning positions.
  • the suction channel 14 is connected to a vacuum source (not shown) via a vacuum connection 15.
  • the suction slot 16 In the sliding surface 13 there is a suction slot 16, which extends essentially in the transport direction A, but at a slight angle to the direction of movement of the conveyor belt 12. On its inner side in the running direction, the suction slot 16 has a so-called gathering edge 17, along which the compressing fiber dressing 1 moves and at the same time unrolls easily.
  • the conveyor belt 12 is also guided over a deflection roller 18 which is arranged at a distance from the suction slot 16, extends over a plurality of spinning positions and tensions the conveyor belt 12.
  • a clamping roller 19 is provided which presses the fiber assembly 1 together with the conveyor belt 12 against the sliding surface 13 on a delivery clamping line 20 and which is driven by the conveyor belt 12.
  • the delivery clamping line 20 thus delimits the compression zone 11 and at the same time acts as a swirl stop for the subsequent spin rotation which is not intended to run back into the compression zone 11.
  • the spun thread 21 is formed, which is fed in the delivery direction B to a twist yarn, not shown, for example a ring spindle.
  • the drafting system 2 includes, in a known manner, a load carrier 22 which, in addition to the pressure roller 8 and the other pressure rollers of the drafting system 2, which are not described in any more detail, also carries the clamping roller 19. Because of the very different loading pressures of the pressure roller 8 and the clamping roller 19, the loading device of the load carrier 22 consists of one Compression spring 23 for the pressure roller 8 and a compression spring 24 for the pinch roller 19. The force of the compression spring 23 is a multiple of the force of the compression spring 24.
  • the driven lower roller 7 and the other lower rollers of the drafting unit 2 which are not shown or designated in any more detail, run in the usual manner in the longitudinal direction of the spinning machine and are mounted at useful intervals in so-called drafting unit punches 25, one of which is indicated in FIG. These drafting system punches 25 also hold the suction channel 14 and the deflection roller 18.
  • the deflection roller 18 is arranged according to the invention in the immediate vicinity of the lower roller 7 and forms a wedge gap 29 therewith.
  • this wedge gap 29 there is an intermediate roller 27, which is also mounted in the drafting device punch 25 and which is located both on the lower roller 7 and on the deflection roller 18 rests springy.
  • the intermediate roller 27 is driven by the lower roller 7 and in turn drives the deflection roller 18 and at the same time the conveyor belt 12 by friction.
  • the intermediate roller 27 is provided with a suitable friction lining 28.
  • the lower roller 7 is provided near the drafting device punch 25 with a ring collar of enlarged diameter, which is formed, for example, by an interchangeable disk 26 can be.
  • the intermediate roller 27 is thus only against this disc 26 and is driven by this. Since the disk 26 has a somewhat larger diameter than the diameter of the actual lower roller 7, the necessary tensioning delay on the fiber structure 1 is given.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)

Abstract

Selon la présente invention, une zone de compression permettant la compression d'un ruban de fibres étiré sans torsion de filature suit le train d'étirage d'un métier à filer. Cette zone de compression comporte une bande transporteuse (12) perméable à l'air, qui achemine le ruban de fibres à travers la zone de compression. Cette bande transporteuse, qui est guidée sur une surface de glissement (13) d'un canal d'aspiration (14), est tendue par un galet de renvoi (18). Une fente d'aspiration, s'étendant sensiblement dans le sens de transport du ruban de fibres, est formée dans cette surface de glissement (13). L'extrémité de la zone de compression est limitée par un cylindre de serrage (19), qui presse le ruban de fibres et la bande transporteuse contre la surface de glissement (13). Ce galet de renvoi est agencé au niveau du cylindre inférieur entraîné (7) de la paire de cylindres de sortie (7, 8) du train d'étirage et forme avec ce cylindre inférieur une interstice conique. Une fente intermédiaire, située dans l'interstice conique (29) aussi bien sur le cylindre inférieur que sur le galet de renvoi, entraîne ainsi la bande transporteuse.
PCT/EP2001/011447 2000-11-24 2001-10-04 Dispositif sur un metier a filer pour la compression d'un ruban de fibres WO2002042535A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002545231A JP2004514800A (ja) 2000-11-24 2001-10-04 スライバを凝縮するための紡績機械装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2000158892 DE10058892A1 (de) 2000-11-24 2000-11-24 Vorrichtung an einer Spinnmaschine zum Verdichten eines Faserverbandes
DE10058892.1 2000-11-24

Publications (1)

Publication Number Publication Date
WO2002042535A1 true WO2002042535A1 (fr) 2002-05-30

Family

ID=7664869

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2001/011447 WO2002042535A1 (fr) 2000-11-24 2001-10-04 Dispositif sur un metier a filer pour la compression d'un ruban de fibres

Country Status (5)

Country Link
JP (1) JP2004514800A (fr)
CN (1) CN1254571C (fr)
DE (1) DE10058892A1 (fr)
IT (1) ITMI20012423A1 (fr)
WO (1) WO2002042535A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1309891C (zh) * 2002-09-17 2007-04-11 株式会社丰田自动织机 纺纱机的纤维束集束装置及装备有该装置的细纱机
WO2019115351A1 (fr) * 2017-12-15 2019-06-20 Maschinenfabrik Rieter Ag Machine à filer et dispositif de serrage

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1320183C (zh) * 2003-06-25 2007-06-06 东台纺织机械有限责任公司 环锭细纱机纤维集聚装置
DE10343316A1 (de) * 2003-09-10 2005-04-14 Wilhelm Stahlecker Gmbh Vorrichtung an einer Spinnmaschine zum Verdichten eines Faserverbandes
CN100351445C (zh) * 2004-08-10 2007-11-28 东台纺织机械有限责任公司 带压纤维束集聚装置及集聚纺环锭细纱机
DE102013113406A1 (de) * 2013-12-03 2015-06-03 Maschinenfabrik Rieter Ag Einsatz und Spinnmaschine
DE102015109269A1 (de) * 2015-05-18 2016-11-24 Maschinenfabrik Rieter Ag Belastungsträger für Oberwalzen eines Streckwerks und Druckfeder
DE102015110691A1 (de) * 2015-07-02 2017-01-05 Maschinenfabrik Rieter Ag Aggregat für eine Ringspinnmaschine
CN110904545A (zh) * 2019-10-01 2020-03-24 嘉兴学院 一种环锭纺网格圈引纱机构及细纱机
CN111172635B (zh) * 2020-01-09 2021-04-02 嘉兴学院 一种假捻集聚纺纱装置的传动方法、装置与细纱机

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998039505A2 (fr) * 1997-03-03 1998-09-11 Csm-Sächsische Spinnereimaschinen Gmbh Systeme d'etirage pour metiers a filer comportant une zone de mise en faisceaux de fibres et metier a anneau ainsi equipe
DE19837181A1 (de) * 1998-08-17 2000-02-24 Stahlecker Fritz Vorrichtung zum Verdichten eines verstreckten Faserverbandes
DE19837178A1 (de) * 1998-08-17 2000-02-24 Stahlecker Fritz Vorrichtung an einer Ringspinnmaschine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998039505A2 (fr) * 1997-03-03 1998-09-11 Csm-Sächsische Spinnereimaschinen Gmbh Systeme d'etirage pour metiers a filer comportant une zone de mise en faisceaux de fibres et metier a anneau ainsi equipe
DE19837181A1 (de) * 1998-08-17 2000-02-24 Stahlecker Fritz Vorrichtung zum Verdichten eines verstreckten Faserverbandes
DE19837178A1 (de) * 1998-08-17 2000-02-24 Stahlecker Fritz Vorrichtung an einer Ringspinnmaschine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1309891C (zh) * 2002-09-17 2007-04-11 株式会社丰田自动织机 纺纱机的纤维束集束装置及装备有该装置的细纱机
WO2019115351A1 (fr) * 2017-12-15 2019-06-20 Maschinenfabrik Rieter Ag Machine à filer et dispositif de serrage

Also Published As

Publication number Publication date
CN1254571C (zh) 2006-05-03
ITMI20012423A1 (it) 2003-05-16
JP2004514800A (ja) 2004-05-20
DE10058892A1 (de) 2002-06-06
CN1395631A (zh) 2003-02-05

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