EP0615009B1 - Dispositif de pincage pour ouate - Google Patents

Dispositif de pincage pour ouate Download PDF

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Publication number
EP0615009B1
EP0615009B1 EP19940810077 EP94810077A EP0615009B1 EP 0615009 B1 EP0615009 B1 EP 0615009B1 EP 19940810077 EP19940810077 EP 19940810077 EP 94810077 A EP94810077 A EP 94810077A EP 0615009 B1 EP0615009 B1 EP 0615009B1
Authority
EP
European Patent Office
Prior art keywords
lap
rollers
unwound
wound
nipper
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
EP19940810077
Other languages
German (de)
English (en)
Other versions
EP0615009A1 (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 patent claim 1 and to devices for carrying out the method according to the preamble of claims 2 and 5.
  • the cotton to be combed out is presented to the combing unit in the form of a wadding of cotton wool for combing out.
  • 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.
  • a device is also known from EP-A1-482 475, wherein a pair of pressure rollers is arranged between the winding rollers and the pliers, which serves to form a clamping point in order to attach a new cotton end to an outgoing cotton end.
  • One of the rollers is arranged so that it can be lifted off in order to allow the two ends of the wadding to overlap.
  • this document does not indicate that the nip point of the pair of pressure rollers is maintained during operation at constant pressure.
  • 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.
  • This special procedure for attaching a clamping point between the winding rollers and the pliers aggregate that is constant over the unwinding cycle means that the dynamic conditions occurring behind this additional clamping 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 as to be spring-loaded in the direction of the driven roller.
  • a second device for performing the method according to claim 1 has the features of the characterizing part of claim 5.
  • a pressure roller which rests spring-loaded on the strap, can also be used.
  • 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 with the pair of calender rolls 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.
  • a pressure roller 11 On the roller 10, which is also driven here by the gear 7, a pressure roller 11 which is pivotably mounted about a lever 14 via a spring 25 is arranged.
  • 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 pair of tear-off cylinders 18.
  • a circular comb 19 is 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 rollers 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 fiber sliver via a take-off table (not shown) and fed to a drafting system (not shown) with the fiber 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 band 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 setpoint 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.
  • the strap 30 is tensioned via a tensioning roller 33 acted upon by a spring 34.
  • 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.
  • 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 in this example with a tension roller 39 provided, in which case the run of the apron 30 is tensioned outwards by the tensioning roller 39.
  • a spring 41 acts on the device of the apron 30, by means of which the strand of the strap 30 is pressed onto an opposite strand of the further strap 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 clamping point 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 clamping point.
  • 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)

Claims (8)

  1. Procédé utilisé pour l'amenée d'une nappe (9), pouvant être déroulée à partir d'un rouleau de nappe (W), vers un ensemble de pinces (12) mobile en mouvement de va-et-vient d'une peigneuse, et où le rouleau de nappe repose sur des cylindres dérouleurs de nappe (5,6,) maintenus d'une manière rotative, et au moins un des cylindres dérouleurs de nappe est relié avec un entraînement (7),
    caractérisé par le fait que,
    au moins pendant la plus grande partie de l'intervalle de déroulement, une force de pincement (K), s'étendant sur la largeur de la nappe, est exercée sur la nappe déroulée (9), entre les cylindres dérouleurs de nappe (5,6) et l'ensemble de pinces (12), force dont l'importance est choisie de telle manière que les différences dynamiques, absorbées par la nappe déroulée et qui sont provoquées par la diminution du diamètre du rouleau de nappe pendant l'intervalle de déroulement, n'aient pas d'influence sur la zone (22) de la nappe (9), zone dans laquelle la nappe est dirigée directement vers l'ensemble de pinces.
  2. Dispositif servant à réaliser le procédé selon revendication 1, utilisé pour l'amenée d'une nappe (9), pouvant être déroulée à partir d'un rouleau de nappe (W), vers un ensemble de pinces (12) se déplaçant en mouvement de va-et-vient d'une peigneuse, et où le rouleau de nappe repose sur des cylindres dérouleurs de nappe (5,6,) maintenus d'une manière rotative, et au moins un des cylindres dérouleurs de nappe est relié avec un entraînement (7), et où une paire de rouleaux de pression (10,11), située entre les cylindres dérouleurs de nappe (5,6) et l'ensemble de pinces (12), est disposée perpendiculairement à la direction de déplacement (F) de la nappe (9), et au moins un des rouleaux de pression (11) est maintenu d'une manière mobile en allant vers l'autre et est soumis à une charge de manière à produire une force de pincement prédéterminée,
    caractérisé par le fait
    qu'un élément élastique (25) est prévu pour la charge du rouleau de pression (11) qui assure que la force de pincement peut être exercée sur la nappe déroulée, entre les cylindres dérouleurs de nappe et l'ensemble de pinces, au moins pendant la plus grande partie de l'intervalle de déroulement, et où l'importance de la force de pincement est choisie de telle manière que les différences dynamiques, absorbées par la nappe déroulée et qui sont provoquées par la diminution du diamètre du rouleau de nappe pendant l'intervalle de déroulement, n'aient pas d'influence sur la zone (22) de la nappe (9), zone dans laquelle la nappe est dirigée directement vers l'ensemble de pinces.
  3. Dispositif selon revendication 2,
    caractérisé par le fait
    qu'au moins un rouleau (10) de la paire de rouleaux de pression (10,11) est relié avec un entraînement (7).
  4. Dispositif selon revendication 3,
    caractérisé par le fait que
    le rouleau de pression (11) non relié avec l'entraînement (7) est maintenu d'une manière mobile et chargé élastiquement en allant vers l'axe médian du rouleau entraîné (10).
  5. Dispositif servant à réaliser le procédé selon revendication 1, utilisé pour l'amenée d'une nappe (9), pouvant être déroulée à partir d'un rouleau de nappe (W), vers un ensemble de pinces (12) se déplaçant en mouvement de va-et-vient d'une peigneuse, et où le rouleau de nappe repose sur des cylindres dérouleurs de nappe (5,6,) maintenus d'une manière rotative, et au moins un des cylindres dérouleurs de nappe est relié avec un entraînement (7), et où un élément de pincement (30) est prévu entre les cylindres dérouleurs de nappe (5,6) et l'ensemble de pinces (12), et disposé perpendiculairement à la direction de déplacement (F), lequel coopère avec un autre élément (35,38,45) pour produire une force de pincement prédéterminée, et où l'autre élément (35,38,45) est maintenu d'une manière mobile en allant vers l'élément de pincement (30) et est soumis à une charge de manière à produire une force de pincement prédéterminée,
    caractérisé par le fait que
    l'élément de pincement est formé comme une lanière circulante (30) et un élément élastique (41,46) est prévu pour la charge de l'autre élément (35,38,45), que la force de pincement peut être exercée sur la nappe déroulée, entre les cylindres dérouleurs de nappe et l'ensemble de pinces, au moins pendant la plus grande partie de l'intervalle de déroulement, et où l'importance de la force de pincement est choisie de telle manière que les différences dynamiques, absorbées par la nappe déroulée et qui sont provoquées par la diminution du diamètre du rouleau de nappe pendant l'intervalle de déroulement, n'aient pas d'influence sur la zone (22) de la nappe (9), zone dans laquelle la nappe est dirigée directement vers l'ensemble de pinces.
  6. Dispositif selon revendication 5,
    caractérisé par le fait que
    l'autre élément est constitué par une autre lanière circulante (38) disposée en opposé à la lanière (30), et au moins une lanière (30) repose en charge élastique sur l'autre lanière (38).
  7. Dispositif selon revendication 5,
    caractérisé par le fait que
    l'autre élément est constitué par un rouleau de pression (45) agissant en coopération avec la lanière (30).
  8. Dispositif selon revendication 7,
    caractérisé par le fait que
    le rouleau de pression (45) est mis en charge par un élément élastique (46), en allant vers la lanière (30).
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 EP0615009A1 (fr) 1994-09-14
EP0615009B1 true 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 (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102691141A (zh) * 2011-03-22 2012-09-26 株式会社丰田自动织机 用于控制梳毛机中的毛卷馈送的装置和方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1276945B1 (it) * 1995-10-16 1997-11-03 Marzoli & C Spa Dispositivo e procedimento automatico per la sostituzione delle confezioni di teletta di alimentazione e per la preparazione e
DE19641979B4 (de) * 1996-10-11 2007-01-04 Maschinenfabrik Rieter Ag Verfahren und Vorrichtung zum Steuern der Antriebsbewegungen einer Kämmaschine, insbesondere einer Baumwollkämmaschine
WO2004088013A1 (fr) * 2003-04-02 2004-10-14 Maschinenfabrik Rieter Ag Groupe pince d'une peigneuse
DE102006024555B4 (de) * 2006-05-23 2012-04-05 Oerlikon Textile Gmbh & Co. Kg Kämmmaschine mit Reservewickelmulde

Family Cites Families (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
CH681629A5 (fr) * 1990-08-20 1993-04-30 Rieter Ag Maschf
CH681894A5 (fr) * 1990-10-22 1993-06-15 Rieter Ag Maschf

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102691141A (zh) * 2011-03-22 2012-09-26 株式会社丰田自动织机 用于控制梳毛机中的毛卷馈送的装置和方法
CN102691141B (zh) * 2011-03-22 2014-09-24 株式会社丰田自动织机 用于控制梳毛机中的毛卷馈送的装置和方法

Also Published As

Publication number Publication date
CH686675A5 (de) 1996-05-31
CN1043909C (zh) 1999-06-30
EP0615009A1 (fr) 1994-09-14
DE59403494D1 (de) 1997-09-04
CN1094766A (zh) 1994-11-09

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