EP0615009A1 - Dispositif de pincage pour ouate - Google Patents

Dispositif de pincage pour ouate Download PDF

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Publication number
EP0615009A1
EP0615009A1 EP94810077A EP94810077A EP0615009A1 EP 0615009 A1 EP0615009 A1 EP 0615009A1 EP 94810077 A EP94810077 A EP 94810077A EP 94810077 A EP94810077 A EP 94810077A EP 0615009 A1 EP0615009 A1 EP 0615009A1
Authority
EP
European Patent Office
Prior art keywords
strap
winding
roller
lap
cotton
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
EP94810077A
Other languages
German (de)
English (en)
Other versions
EP0615009B1 (fr
Inventor
Walter Ackeret
Harald Schwippl
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.)
Maschinenfabrik Rieter AG
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 EP0615009A1 publication Critical patent/EP0615009A1/fr
Application granted granted Critical
Publication of EP0615009B1 publication Critical patent/EP0615009B1/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
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/08—Feeding apparatus
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01G—PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING
    • D01G19/00—Combing machines
    • D01G19/06—Details
    • D01G19/26—Driving arrangements

Definitions

  • the invention relates to a method according to the preamble of claim 1 and to an apparatus for performing the method.
  • the cotton to be combed out is presented to the combing unit in the form of a cotton roll.
  • the cotton roll is supported on two winding rollers, at least one of which is driven, during the unrolling of the cotton wool.
  • the cotton is removed from the roll in front of the front roll.
  • the cotton unwound in this way passes through a feed cylinder into the clamping area of a pair of pliers or a pair of pliers, and is combed out at its front end, which projects beyond the pliers when the pliers are closed, by means of a circular comb arranged below the pliers.
  • the pliers are opened again and the combed-out fiber beard is transferred to a subsequent pair of tear-off cylinders.
  • a fixed comb stuck into the fiber beard to be torn off can have an additional combing effect.
  • the pliers move back and forth.
  • the driven winding roll is separated from the drive by a coupling, so that both winding rolls can be freely rotated.
  • this device there are several pairs of pressure rollers between the winding rollers on which the roll to be unrolled rests, and provided the pliers unit to prepare and connect the cotton end accordingly. These pairs of pressure rollers form additional clamping points exclusively for the purpose of carrying out the preparation and attachment process of the cotton wool.
  • drift This deviation, generally referred to as drift, varies between 3 and 5% depending on the structure of the cotton roll, material and the like. However, this is not desirable for the subsequent further processing.
  • the cotton unrolled from the winding is transported on the one hand by the drive of at least one winding roller in connection with the intermittent drive of the feed cylinder of the combing unit. Between the front winding roller and the feed cylinder, the cotton is subject to a slight tension delay.
  • Other influences such as, for example, the different indentation depths in the front winding roller, where the cotton is removed from the winding, also play a role in the change in the cotton tension found between the winding rollers and the feed cylinder.
  • This special procedure for attaching a nip between the winding rollers and the pliers unit means that the dynamic conditions that occur behind this additional nip line, i.e. absorbed or balanced between this clamping line and the winding rollers. As a result, the wadding tension can be kept constant during the entire rolling interval regardless of the weight of the wadding roll between the additional clamping point and the forceps unit.
  • At least one of the rollers of the pair of pressure rollers is preferably connected to a drive.
  • the roller which is not connected to the drive, can be mounted so that it can move in a spring-loaded manner in the direction of the driven roller.
  • the clamping force be generated by a circumferential strap which is arranged transversely to the conveying direction and which interacts with another element.
  • the strappy could, for example, interact with a spring-loaded guide plate or the strappy itself could act on a fixed guide plate via a spring load.
  • the cotton wool is in this case performed between the straps and this guide plate.
  • a pressure roller which rests spring-loaded on the strap, can also be used.
  • the winding weight being picked up at the start of the unwinding process via an additional device, which e.g. engages the sleeve, so that the contact force on the winding rollers also remains constant during the entire rolling interval.
  • FIG. 1 shows a combing head 1 in a schematic side view of a combing machine. Eight such combing heads 1 are usually installed on a combing machine. For reasons of clarity, the exemplary embodiment is shown and described on only one combing head, the details shown being installed on each of these combing heads in addition to the common drive units and the tape storage.
  • FIG. 1 also schematically shows a belt deposit 2 with a pair of calender rolls 3, at least one of which at least temporarily functions as a measuring roll. The result of the measurement on the measuring rollers 3 is shown in a schematically shown display instrument 4.
  • the combing head 1 consists of two winding rollers 5, 6, of which the front winding roller 5 is connected to a gear 7 which is driven by a motor 8.
  • W roll On the winding rollers 5,6 there is a wadding roll, called W roll for short, from which the wadding 9 is unwound by the rotary movement.
  • the cotton wool 9 is deflected on a roller 10 and transferred to a feed cylinder 13 of a tongs unit, called tongs 12 for short.
  • the roller 10 On the roller 10, which is also driven here via the gear 7, is around a lever 14 via a spring 15 loaded pressure roller 11 pivotally mounted.
  • the pliers 12 can be moved back and forth via the levers 15, 16 via a shaft 17 which is connected to the gear 7.
  • the pliers are in a front position and transfer the combed fiber beard to a subsequent tear-off cylinder pair 18.
  • a circular comb 19 is rotatably mounted, which combs the fiber beard presented by the closed pliers via its comb segment 20.
  • the circular comb 19 is also drive-connected to the gear 7.
  • the cotton 9 is wound on a sleeve 21.
  • a ratchet wheel not shown, is fastened, which is rotated step by step by the reciprocating movement of the pliers 12 by a ratchet, also not shown, and thereby feeds the cotton wool 9 for combing out to the pliers mouth of the pliers 12.
  • the wadding 9 is unrolled continuously by the generated rotational movement of the winding W over the winding roller 5 and reaches the area 22 between the clamping point K and the feed cylinder 13 via the nip point K of the roller 10 and 11.
  • the cotton wool is fed through the feed cylinder 13 for combing out the pliers mouth of the pliers 12 and then delivered to the tear-off cylinder 18.
  • the resulting nonwoven fabric is combined into a sliver via a take-off table, not shown, and fed to a drafting system (not shown) with the slivers likewise formed on the other combing heads.
  • the fleece emerging from the drafting system is combined to form a fiber sliver, the so-called combing machine sliver, and the sliver storage unit 2 is transferred to a can 24 for storage.
  • the winding W with the weight G1 is reduced to the winding W1 with the weight G1 shown in broken lines.
  • FIG. 2 A diagram is shown schematically in FIG. 2, the tape number (Nm) being plotted over time or over an interval T of a winding process.
  • the value x is given as the setpoint in the horizontal direction.
  • the curve B which is displayed on the display device 4, moves approximately in the range of the target value x and corresponds to the measured curve, which is achieved by using the additional clamping point.
  • the downward-falling curve B1 shows a course of the tape number without an additional clamping point, i.e. the band number drifts by the amount "a", which corresponds to a drift of approx. 3-5%.
  • FIG. 3 an apron 30 is used which rotates around rollers 31 and 32 fixedly attached to the frame of the machine. Via one with a spring 34 tensioned roller 33, the strap 30 is tensioned.
  • a guide plate 35 is assigned to the run of the apron 30 lying opposite the tensioning roller. The guide plate 35 runs parallel to the run of the apron 30 and is supported by a spring 36 on the schematically illustrated frame R of the machine. As a result, the plate 35 exerts a compressive force in the direction of the strap 30.
  • the cotton 9 is passed between the plate 35 and the strappy 30 before it is transferred to the pliers unit 12.
  • FIG. 4 shows the use of two straps 30, 38 for producing the clamping point K.
  • the clamping point K is not only linear but also flat.
  • the strap 30 is provided with a tensioning roller 39, in which case the run of the strap 30 is braced outwards by the tensioning roller 39.
  • a spring 41 acts on the device of the strappy 30, by means of which the run of the strappy 30 is pressed onto an opposite run of the strappy 38.
  • the device of the apron 30 is mounted (not shown) so as to be displaceable or pivotable in the direction of the spring 41.
  • the strap 38 runs around the rollers 42 and 43 and is tensioned over a tension roller 40.
  • the device of the strap 38 is fixed to the frame on the frame.
  • FIG. 5 shows a variant, a pressure roller 45 acting on a run of the belt 30, which is mounted displaceably and is supported on the frame R via a spring 46.
  • a further possibility of attaching a nip is that with a corresponding wadding guide via the winding roller 5 it is possible to attach a pressure roller directly on the winding roller 5 to generate the additional nip.
  • the proposed designs according to the invention enable a simple and inexpensive device to prevent drift, as a result of which existing machines can also be retrofitted without great effort.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP19940810077 1993-03-12 1994-02-11 Dispositif de pincage pour ouate Expired - Lifetime EP0615009B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH76393A CH686675A5 (de) 1993-03-12 1993-03-12 Klemmstelle fuer Watte.
CH763/93 1993-03-12

Publications (2)

Publication Number Publication Date
EP0615009A1 true EP0615009A1 (fr) 1994-09-14
EP0615009B1 EP0615009B1 (fr) 1997-07-30

Family

ID=4194611

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940810077 Expired - Lifetime EP0615009B1 (fr) 1993-03-12 1994-02-11 Dispositif de pincage pour ouate

Country Status (4)

Country Link
EP (1) EP0615009B1 (fr)
CN (1) CN1043909C (fr)
CH (1) CH686675A5 (fr)
DE (1) DE59403494D1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0768398A1 (fr) * 1995-10-16 1997-04-16 F.LLi Marzoli & C. S.p.A. Dispositif et procédé pour remplacer automatiquement les enroulements de nappes d'alimentation et pour préparer et raccorder les extrémités relatives des nappes dans une machine de peignage
EP2503034A1 (fr) * 2011-03-22 2012-09-26 Kabushiki Kaisha Toyota Jidoshokki Dispositif et procédé de commande d'alimentation de nappe en peigne

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19641979B4 (de) * 1996-10-11 2007-01-04 Maschinenfabrik Rieter Ag Verfahren und Vorrichtung zum Steuern der Antriebsbewegungen einer Kämmaschine, insbesondere einer Baumwollkämmaschine
JP2006522231A (ja) * 2003-04-02 2006-09-28 マシーネンファブリク　リーター　アクチェンゲゼルシャフト コーミング機械のクランピング装置
DE102006024555B4 (de) * 2006-05-23 2012-04-05 Oerlikon Textile Gmbh & Co. Kg Kämmmaschine mit Reservewickelmulde

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH351201A (de) * 1957-06-07 1960-12-31 Rieter Joh Jacob & Cie Ag Wattenzufuhrvorrichtung an einer Kämmaschine
GB1213583A (en) * 1968-01-03 1970-11-25 Nitto Shoji Kabushiki Kaisha Comber for a lap of textile fibres
GB1488802A (en) * 1976-03-23 1977-10-12 Ts Nii Sherstya Promy Method of and an apparatus for feeding slivers to a nip comber
EP0481181A1 (fr) * 1990-08-20 1992-04-22 Maschinenfabrik Rieter Ag Dispositif de pincage pour une machine de peignage
EP0482475A1 (fr) * 1990-10-22 1992-04-29 Maschinenfabrik Rieter Ag Dispositif de détachement de la nappe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH351201A (de) * 1957-06-07 1960-12-31 Rieter Joh Jacob & Cie Ag Wattenzufuhrvorrichtung an einer Kämmaschine
GB1213583A (en) * 1968-01-03 1970-11-25 Nitto Shoji Kabushiki Kaisha Comber for a lap of textile fibres
GB1488802A (en) * 1976-03-23 1977-10-12 Ts Nii Sherstya Promy Method of and an apparatus for feeding slivers to a nip comber
EP0481181A1 (fr) * 1990-08-20 1992-04-22 Maschinenfabrik Rieter Ag Dispositif de pincage pour une machine de peignage
EP0482475A1 (fr) * 1990-10-22 1992-04-29 Maschinenfabrik Rieter Ag Dispositif de détachement de la nappe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0768398A1 (fr) * 1995-10-16 1997-04-16 F.LLi Marzoli & C. S.p.A. Dispositif et procédé pour remplacer automatiquement les enroulements de nappes d'alimentation et pour préparer et raccorder les extrémités relatives des nappes dans une machine de peignage
US5778493A (en) * 1995-10-16 1998-07-14 F.Lli Marzoli & C. S.P.A. Device and method for automatically replacing the feed lap packages and for preparing and joining the relative edges in a combing machine
EP2503034A1 (fr) * 2011-03-22 2012-09-26 Kabushiki Kaisha Toyota Jidoshokki Dispositif et procédé de commande d'alimentation de nappe en peigne

Also Published As

Publication number Publication date
EP0615009B1 (fr) 1997-07-30
CN1043909C (zh) 1999-06-30
CH686675A5 (de) 1996-05-31
DE59403494D1 (de) 1997-09-04
CN1094766A (zh) 1994-11-09

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