EP0450043B1 - Banc d'etirage pour etirer des rubans de fibres - Google Patents

Banc d'etirage pour etirer des rubans de fibres Download PDF

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Publication number
EP0450043B1
EP0450043B1 EP90916281A EP90916281A EP0450043B1 EP 0450043 B1 EP0450043 B1 EP 0450043B1 EP 90916281 A EP90916281 A EP 90916281A EP 90916281 A EP90916281 A EP 90916281A EP 0450043 B1 EP0450043 B1 EP 0450043B1
Authority
EP
European Patent Office
Prior art keywords
flat belt
rollers
frame according
drawing frame
belt
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.)
Expired - Lifetime
Application number
EP90916281A
Other languages
German (de)
English (en)
Other versions
EP0450043A1 (fr
Inventor
Rudolf Oexler
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.)
Rieter Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Rieter Ingolstadt Spinnereimaschinenbau 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 Rieter Ingolstadt Spinnereimaschinenbau AG filed Critical Rieter Ingolstadt Spinnereimaschinenbau AG
Publication of EP0450043A1 publication Critical patent/EP0450043A1/fr
Application granted granted Critical
Publication of EP0450043B1 publication Critical patent/EP0450043B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the invention relates to a stretch for drawing fiber slivers with pairs of pre-drafting and main drafting rollers Drafting rollers and with power transmission means for Drive of the drafting rollers as well as the belt deposit.
  • roller pairs have one from the drafting system input to the drafting system output increased peripheral speed.
  • the lower roller On the roller pairs is the lower roller for producing a slip-free drive, which for a proper warping of the slivers is absolutely necessary, using gears or Timing belt driven.
  • the top rollers are against the bottom rollers pressed and thereby clamp that between them continuous fiber material.
  • the US-PS 1,538,349 describes a belt transmission for change a speed. There are no indications like the drive the pairs of drafting rollers in the high-speed range to be realized.
  • the object of the invention is to drive the route to create which is largely maintenance-free and without Slip a proper, smooth and fast drive of the drafting rollers as well as the belt deposit.
  • force transmission means are used to drive the drafting rollers, at least one of these force transmission means being a belt belt that wraps around drive pulleys and that the wrapping of at least one of the drive pulleys by the flat belt is arranged of deflection rollers is enlarged to a wrap angle of at least 180 ° and the flat belt is deflected in the direction of rotation during rotation, so that a cleaning effect occurs.
  • Flat belts surprisingly allow high speeds of the drafting rollers with delivery speeds of more than 500 m / min.
  • deflection pulleys By arranging deflection pulleys to increase the wrap angle of the flat belt around the drive pulleys of the drafting rollers, it has now been possible for the first time to achieve slip-free and thus precisely adjustable speeds of drafting rollers in the field of roller drafting systems.
  • the arrangement of deflection pulleys means that the wrapping of the drive pulleys through the flat belts can be increased in such a way that the power transmission from the drive motor to the drafting rollers takes place without slippage.
  • Another advantage is achieved in that the flat belt is successively acted upon on both sides by deflection or drive pulleys. As a result, the flat belt is bent on both the left and right per cycle. This different bending of the flat belt ensures cleaning and thus a constant transferable force.
  • the pre-drawing rollers are by means of a Flat belt connected to each other in terms of drive.
  • the speed ratios of the pre-drafting roller pairs Is in the direction of the belt between drive pulley and driven pulley of the pre-drafting rollers arranged at least one deflection roller, so this flat belt also becomes reciprocal in one cycle bent, cleaned and the wrap enlarged.
  • a wrap angle between has been found to be advantageous Flat belt and drive pulley of the drafting roller from proven at least 180 °. In this wrapping posed there is an essentially slip-free drive of the pre-drafting rollers a.
  • the flat belt is over a pulley performed, which leads to the generation of the required belt tension on a tensioning lever provided with a spring element is arranged, it is advantageously a uniform Guaranteed running of the drafting rollers.
  • cleaning devices act on the contact surfaces the drive pulleys, the pulleys and the running surfaces of the flat belt. This will prevent contamination rolled on the flat belt, pulleys and rollers and thus change the friction parameters unfavorably, causing slippage. This would become one unwanted change in gear ratios Guide drafting rollers.
  • At least one of the drive pulleys on the drafting rollers is interchangeably arranged. Because of the engagement is the change of drive pulleys of different diameters translation ratios achievable.
  • Rubber has proven to be an advantageous material for the flat belts surrender.
  • Flat belts made of rubber achieved good results with regard to stretching behavior, slip in combination with steel pulleys and vibration behavior.
  • Fig. 1 The section shown in Fig. 1 from a transmission plan
  • One route shows the connections between engine 1 and Drafting unit rollers 30, 31, 32.
  • the drafting unit lower rollers are driven with flat belts.
  • the rotation the drafting system top rollers is pressed by pressing the top rollers accomplished on the lower rollers.
  • the drive pulleys 2 driven by the motor 1 are by means of a flat belt 20 and drive pulleys 3 with a main drive shaft 40 connected.
  • Pulleys 2 and 3 are as Stepped rollers are formed, creating different gear ratios achievable by folding the flat belt 20 are.
  • the main drive shaft 40 drives 4 and 10 the rotations for the drafting rollers 30, 31, 32 tapped.
  • the drive pulley 4 is by means of a belt 22 and a drive pulley 5 with an intermediate drive shaft 41 connected by drive. From the intermediate drive shaft 41 is over drive pulley 6 and 7, which via a belt 23rd are connected, the drafting roller 30 driven.
  • By the arrangement of the drive pulleys 4, 5, 6 and 7, which are different Have diameter is dependent on the sliver to be drawn and from that to the sliver a suitable rotary movement to apply to the drafting roller 30.
  • By changing the Discs 4, 5, 6 or 7 are changes in the speed of the drafting roller 30 to effect. For this drive in the warp change gear timing belts are preferably provided.
  • the drafting rollers which cause the sliver to advance 30, 31 are driven by means of a flat belt 24 connected.
  • a suitable choice of diameter of the drive pulleys 8 and 9 is a speed ratio of the drafting rollers 30, 31 accessible to each other, which is the size of the Preliminary draft of the sliver is determined.
  • the main drive shaft 40 is by means of the drive pulley 10 and a flat belt 21 picked up a rotary movement, which via a drive pulley 11 on an intermediate drive shaft 42 for driving the calender rolls 421 and for driving of turntable 437 and can plate 46 is used.
  • a drive pulley 11 on an intermediate drive shaft 42 for driving the calender rolls 421 and for driving of turntable 437 and can plate 46 is used.
  • the Flat belt 21 continues to be by means of a drive pulley 12 the rotary movement of the drafting roller 32 tapped.
  • the drafting roller 32 causes the main warping of the sliver.
  • the sliver delivered by the drafting roller 32 the direction A is from the calender rolls 442 in the Put tube 438 of the placing wheel 437 and brought by this rotating storage tube 438 in a possibly rotating jug 47 filed.
  • the calender rolls 442 are over the intermediate drive shaft 42 and a traction sheave 44 via a Flat belt 441 driven.
  • the turntable 437 is about a traction sheave 43 on the intermediate drive shaft 42 is provided by means of a flat belt 431, which over Deflection rollers 432 in the form of an angular drive, the traction sheave 434 drives, driven, the latter - with the Traction sheave 435 firmly connected - over the flat belt 436 drives the turntable 437.
  • the drive pulleys 8 and 9 are by means of the flat belt 24 connected to each other in terms of drive.
  • In the tape running direction P is between the drive pulley 8 and the drive pulley 9 Deflection roller 13 arranged.
  • the pulley 13 is in advantageously causes the drive pulleys 8 and 9 over a large area of its peripheral surface from the flat belt 24 are acted upon.
  • the drive pulley 8 is the Flat belt 24 wrapped at a wrap angle, which is more than 180 °.
  • This drive pulley 9 is also from the flat belt 24 wrapped at a wrap angle, which is also greater than 180 °.
  • the deflection roller 13 is stationary arranged between the drive pulleys 8 and 9 that independently of the size of the drive pulleys 8 and 9 a loop of more than 180 ° is guaranteed.
  • the drafting roller distances are different fiber material changed.
  • the deflecting roller 13 is also advantageously arranged in such a way that that the tension pulley and the pulley on the same side of the plane in which the axes of the pre-drawing rollers lying. This level divides the room in two Areas where the tension pulley and the pulley are both in one of these areas.
  • the tension of the flat belt 24 is done by means of a a tension lever 50 attached pulley 14.
  • the tension lever 50 is rotatably supported via an axis of rotation 51.
  • a feather 53 causes the flat belt 24 to be pretensioned predetermined contact extension.
  • the guide roller 14 is fixed in its position. The travel the spring 53 is so long that the use of different Diameter of the drive pulleys 8 and 9, which a change in position of the pulley 14 while maintaining the Cause length of the flat belt 24, can be compensated.
  • To the The flat belt 24 is relaxed on the tensioning lever 50 Handle 54 arranged.
  • disc cleaner 60 On the drive pulleys 8 and 9 and on the deflection roller 13 and the tension roller 14 are arranged disc cleaner 60.
  • This Window cleaners 60 cause the contact surfaces to be wiped off the pulleys with the flat belt 24. This avoids that dirt accumulates on the windows and thereby lead to distortion in the sliver. This default are caused on the one hand by the fact that Accelerations and delays of pollution Cause drive pulleys and on the other hand through change of the coefficient of friction slip between flat belts 24 and Drive pulleys 8 or 9 cause. In a particularly dusty environment it is also advantageous to use such cleaning elements in engagement with the contact surfaces on the flat belt 24 bring.
  • Belt scrapers 61 are to be arranged so that they the flat belt 24 before contact with the drive pulleys 8 and 9 wipe off. Such cleaning devices are a matter of course also with the other flat belt drives of the Drafting unit can be used.
  • Scraper brushes are advantageous as cleaning devices suitable in contact with the washers, Rollers and flat belts are standing.
  • Fig. 3 is the drive of the drafting roller 32, which accomplished the main default, shown. From the main drive shaft 40 is the rotary movement via a drive pulley 10 transferred to the flat belt 21. With a flat belt 21 is in the embodiment of FIG. 3 on the one hand Drive pulley 12 for driving the drafting roller 32 and on the other hand, the drive pulley 11 for driving the intermediate drive shaft 42 moves. In the belt circulation direction P are after the drive pulley 11 two pulleys 15 and 16 are arranged. These deflection rollers 15, 16 cause a large wrap angle the drive pulley 10 through the flat belt 21. This ensures that the rotational movement of the Main drive shaft 40 slip-free on the flat belt 21 is transmitted. 3 serves the Drive pulley 11 of the intermediate drive shaft 42 as a deflection roller to increase the wrap angle of the flat belt 21 the drive pulley 12, whereby a slip-free drive of the Drafting roller 32 is guaranteed.

Landscapes

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

Claims (16)

  1. Banc d'étirage pour étirer des rubans de fibres et qui comprend des cylindres de train d'étirage constituant des paires de cylindres pour le pré-étirage et l'étirage principal ainsi que des moyens pour la transmission de forces motrices servant à l'entraínement des cylindres du train d'étirage, caractérisé en ce qu'au moins un de ces moyens pour la transmission de forces motrices est une courroie plate (20 ; 21 ; 22 ; 23 ; 24) embrassant un disque menant et que l'embrassement d'au moins un des disques menants (2, 3 ; 4, 5 ; 6, 7 ; 8, 9 ; 10, 11, 12) par la courroie plate (20 ; 21 ; 22 ; 23 ; 24) est agrandi à un angle d'embrassement d'au moins 180° et que la courroie plate est déviée en différentes directions au cours de sa circulation, si bien qu'un effet de nettoyage se manifeste.
  2. Banc d'étirage selon la revendication 1, caractérisé en ce que les cylindres de pré-étirage (30, 31) sont reliés, en ce qui concerne leur commande, au moyen d'une courroie plate (24)
  3. Banc d'étirage selon la revendication 2, caractérisé en ce qu'en direction de marche (P) de la courroie, au moins une poulie de renvoi (13) est disposée entre le disque menant (8) et le disque menant (9) des cylindres de pré-étirage (30, 31).
  4. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce qu'une poulie de renvoi fixe et un rouleau tendeur sont prévus.
  5. Banc d'étirage selon l'une ou plusieurs des revendications 2 à 4, caractérisé en ce que le rouleau tendeur et la poulie de renvoi se trouvent du même côté du plan dans lequel se situent les axes des cylindres de pré-etirage.
  6. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que la courroie plate (20 ; 21 ; 22 ; 23 ; 24) est menée par-dessus une poulie de renvoi (14) qui est disposée à un levier de tension (50) pourvu d'un élément à ressort pour réaliser la tension nécessaire de la courroie.
  7. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce que dans l'engrenage de changement d'étirage (4, 5, 6, 7) des courroies crantées (22 ; 23) sont prévues tandis que dans l'engrenage (8 ; 9) reliant les cylindres de pré-étirage on a prévu des courroies plates (24).
  8. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 7, caractérisé en ce que des dispositifs de nettoyage (60 ; 61) sont disposés qui sont en contact avec la courroie plate (20 ; 21 ; 22 ; 23 ; 24) des disques menants (2, 3 ; 4, 5 ; 6, 7 ; 8, 9; 10, 11, 12) et/ou des poulies de renvoi (13, 14 ; 11, 15, 16).
  9. Banc d'étirage selon la revendication 8, caractérisé en ce que les dispositifs de nettoyage (60 ; 61) sont des brosses de raclage.
  10. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 9, caractérisé en ce que la courroie plate (20 ; 21 ; 22 ; 23 ; 24) consiste en caoutchouc et que les disques menants (2, 3 ; 4, 5 ; 6, 7 ; 8, 9 ; 10, 11 ; 12) sont conçus en acier.
  11. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 10, caractérisé en ce que la courroie plate (20 ; 21 ; 22 ; 23 ; 24) est renforcée d'éléments de traction à aramide.
  12. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 11, caractérisé en ce que la courroie plate (20 ; 21 ; 22 ; 23 ; 24) est renforcée d'éléments de traction en polyamide.
  13. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 12, caractérisé en ce qu'au moins la surface de la courroie plate (20 ; 21 ; 22 ; 23 ; 24) embrassant les disques menants (2, 3 ; 4, 5 ; 6, 7 ; 8, 9 ; 10, 11, 12) est structurée.
  14. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 13, caractérisé en ce que le dernier moyen de transmission de la force motrice disposé pour servir à l'entraínement direct du disque menant (7 ; 9 ; 12) du cylindre (30 ; 31 ; 32) du train d'étirage est une courroie plate (21 ; 23 ; 24).
  15. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 14 comportant un plateau tournant et une assiette de pot pour le dépôt d'un ruban de fibres, caractérisé en ce que la courroie plate (21) sert à l'entraínement du plateau tournant (437) et de l'assiette de pot (46), par l'intermédiaire d'un arbre de commande intermédiaire (42).
  16. Banc d'étirage selon l'une ou plusieurs des revendications 1 à 15 comportant des rouleaux de calandres pour alimenter le ruban sortant des cylindres du train d'étirage dans le plateau tournant, caractérisé en ce que l'entraínement des rouleaux de calandres se fait au moyen d'une courroie plate.
EP90916281A 1989-10-17 1990-10-09 Banc d'etirage pour etirer des rubans de fibres Expired - Lifetime EP0450043B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3934576A DE3934576A1 (de) 1989-10-17 1989-10-17 Streckwerk zum verziehen von faserbaendern
DE3934576 1989-10-17
PCT/EP1990/001688 WO1991005893A1 (fr) 1989-10-17 1990-10-09 Banc d'etirage pour etirer des rubans de fibres

Publications (2)

Publication Number Publication Date
EP0450043A1 EP0450043A1 (fr) 1991-10-09
EP0450043B1 true EP0450043B1 (fr) 1999-08-11

Family

ID=6391612

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90916281A Expired - Lifetime EP0450043B1 (fr) 1989-10-17 1990-10-09 Banc d'etirage pour etirer des rubans de fibres

Country Status (4)

Country Link
US (1) US5313689A (fr)
EP (1) EP0450043B1 (fr)
DE (2) DE3934576A1 (fr)
WO (1) WO1991005893A1 (fr)

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DE4226406C2 (de) * 1992-08-11 1994-08-04 Rieter Ingolstadt Spinnerei Saugrohr zum Reinigen eines Riemens
EP0640704B1 (fr) * 1993-08-25 1996-10-02 Maschinenfabrik Rieter Ag Machine de peignage
US5418600A (en) * 1993-12-17 1995-05-23 Xerox Corporation Conformable friction drive system for belt or drum transport
DE19717243B4 (de) * 1996-09-26 2008-01-03 Maschinenfabrik Rieter Ag Vorrichtung zum Antreiben von nebeneinanderliegenden Streckwerkzylinder
DE29616757U1 (de) * 1996-09-26 1997-02-27 Maschinenfabrik Rieter Ag, Winterthur Vorrichtung zum Antreiben von Streckwerkzylinder
DE19733264A1 (de) * 1997-08-01 1999-02-04 Sipra Patent Beteiligung Fadenliefervorrichtung und dafür geeignetes Antriebsrad
US6393667B1 (en) 1998-05-13 2002-05-28 Maschinenfabrik Rieter Ag Machine with a drafting arrangement for processing textile material
DE19836135A1 (de) * 1998-08-10 2000-02-17 Stahlecker Fritz Vorrichtung zum Verdichten eines Faserverbandes an einer Ringspinnmaschine
DE10232313A1 (de) * 2002-07-17 2004-02-05 Rieter Ingolstadt Spinnereimaschinenbau Ag Vorrichtung zur Bearbeitung der Oberfläche eines umlaufenden Flachriemens
CH696666A8 (de) * 2002-09-13 2007-11-15 Truetzschler Gmbh & Co Kg Vorrichtung zum Dublieren und Verziehen von Faserbaendern.
CH696743A5 (de) * 2002-09-13 2007-11-15 Truetzschler Gmbh & Co Kg Verfahren zum Einstellen des Klemmlinienabstands eines Streckwerks für Faserbänder und Vorrichtung zum Dublieren und Verziehen von Faserbändern.
CH696766A5 (de) * 2002-09-13 2007-11-30 Truetzschler Gmbh & Co Kg Vorrichtung zum Dublieren und Verziehen von Faserbändern.
DE10330950A1 (de) * 2003-07-08 2005-02-03 Rieter Ingolstadt Spinnereimaschinenbau Ag Textilmaschine, insbesondere Spinnereivorbereitungsmaschine mit einem Streckwerk
DE102006044682A1 (de) * 2006-09-21 2008-03-27 Rieter Ingolstadt Spinnereimaschinenbau Ag Vorrichtung für eine Spinnereivorbereitungsmaschine sowie Spinnereivorbereitungsmaschine
DE102007020448B4 (de) * 2007-04-27 2015-10-15 Trützschler GmbH & Co Kommanditgesellschaft Vorrichtung an einer Spinnereivorbereitungsmaschine, z.B. Strecke, Karde, Kämmmaschine o. dgl. mit einem Streckwerk
JP2012117181A (ja) * 2010-12-03 2012-06-21 Toyota Industries Corp 前紡工程のドラフト装置
DE102013103177A1 (de) * 2013-03-28 2014-10-02 Rieter Ingolstadt Gmbh Antriebsanordnung einer Spinnereivorbereitungsmaschine
KR101872983B1 (ko) * 2016-11-11 2018-08-02 주식회사 남텍 낮은 강력으로 제조되는 실 적층 시스템 및 그 적층 시스템에 의해 제조되는 적층형 실 및 그 적층형 실을 이용한 합사 시스템

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Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
US1538349A (en) * 1924-05-10 1925-05-19 Oates William James Variable-speed mechanism

Also Published As

Publication number Publication date
EP0450043A1 (fr) 1991-10-09
WO1991005893A1 (fr) 1991-05-02
DE3934576A1 (de) 1991-04-25
US5313689A (en) 1994-05-24
DE3934576C2 (fr) 1993-02-18
DE59010881D1 (de) 1999-09-16

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