EP2452001A1 - Dispositif pour la formation d'un ruban de fibres - Google Patents

Dispositif pour la formation d'un ruban de fibres

Info

Publication number
EP2452001A1
EP2452001A1 EP10732257A EP10732257A EP2452001A1 EP 2452001 A1 EP2452001 A1 EP 2452001A1 EP 10732257 A EP10732257 A EP 10732257A EP 10732257 A EP10732257 A EP 10732257A EP 2452001 A1 EP2452001 A1 EP 2452001A1
Authority
EP
European Patent Office
Prior art keywords
roller
press
pair
funnel
combing
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
EP10732257A
Other languages
German (de)
English (en)
Other versions
EP2452001B1 (fr
Inventor
Ueli Stutz
Daniel Sommer
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 EP2452001A1 publication Critical patent/EP2452001A1/fr
Application granted granted Critical
Publication of EP2452001B1 publication Critical patent/EP2452001B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/18—Roller, or roller and apron, devices, e.g. operating to draw-off fibres continuously
    • 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
    • D01G19/14—Drawing-off and delivery apparatus
    • D01G19/16—Nipper mechanisms
    • 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
    • D01G19/28—Air draught or like pneumatic arrangements

Definitions

  • the invention relates to a device for forming a sliver of a formed at a Kämmstelle a comber nonwoven fabric according to the preamble of the main claim.
  • the funnel also called compressor
  • a calender roller pair connected to a drive, via which the fiber sliver formed is delivered to a subsequent conveyor table.
  • Such a device is z. As shown and described in published DE 103 00 317 A1.
  • Fleece formation are delivered to a connected to a vacuum source screen drum.
  • the screen drum is provided with a drive and conveys the formed nonwoven fabric in the direction of a nip of a pair of withdrawal rollers over which the nonwoven fabric withdrawn from the screen drum and a subsequent funnel for
  • Compression and summary is fed to a sliver. Following the funnel, the compacted fibrous material is driven
  • the invention now has the task of proposing a device for forming a sliver of non-woven fabric on a comber, which improves the known solutions and a compact and inexpensive device is achieved while reducing the required drive axles.
  • This object is achieved by proposing that the fibrous web - seen in the conveying direction - following the nip of the pair of rollers in the region of the peripheral surface of the driven roller to the hopper and the
  • Press roller pair rotatably and coaxially disposed on the driven roller.
  • the press roller may be directly connected to the driven roller or fixed against rotation on the drive axle of the driven roller.
  • the term “funnel” is generally to be understood as a “compaction element” in order to combine a fiber mass into a sliver, which in this case is fed to a subsequent calender roller pair for further compaction.
  • the funnel takes over by an appropriate shape design and the task of feeding the sliver exactly the nip of the calender roll pair.
  • roller pair and the funnel at least one, extending in the region of the peripheral surface of the driven roller, stationary guide means for the nonwoven fabric is arranged.
  • the guide means has at least one side guide which projects into the conveying path of the fiber fleece and which extends at an acute angle to the axis of rotation of the driven roller to the hopper ,
  • guide means extending in the region of the peripheral surface also includes those solutions in which the guide means do not exactly follow the contour of the peripheral surface of the driven roller.
  • the guide means is provided with a lower guide surface which extends in the region of the peripheral surface of the driven roller and supports the nonwoven fabric on its underside in the transfer to the hopper.
  • the hopper and the guide means are interconnected. It is advantageous if the funnel and the guide means are interconnected.
  • Guide means are formed as a molded part of one piece.
  • the one-piece molded part can be produced as a molded part made of plastic, whereby the shape is freely designable.
  • the press roll mounted on the roll is secured to one end of the roll which is outside the area of the nip.
  • the take-off area through the funnel is outside the supplied width of the fleece, whereby a complete distribution of the solder joints is possible (as well as in
  • the rotatably mounted press roll which forms the press roll pair with the press roll mounted on the roll, is mounted so as to be movable transversely to its axis of rotation and is acted upon by a spring element in the direction of the press roll fastened on the roll.
  • At least one sensor which scans the movement of the movably mounted press roll, it is possible to provide a continuous monitoring of the sliver formed.
  • a control unit is provided to detect the signal output by the sensor to the control unit
  • CV value mass nonuniformity
  • Such an intervention may, for. B. include the shutdown of this Kämmstelle with a signal triggering.
  • press rollers are provided on their outer circumference with gear-like elevations that engage in the working position of the press rolls form-fitting, is allowed that only one of the press rolls must be driven by a drive means, while the second press roll on the gear-like elevations of the driven first press roll safely entrained, or is driven. Thus, it is also excluded that a slip occurs between the two press rolls, which could have a negative effect on the quality of the sliver.
  • the elevations have a rounded and sinusoidal shape.
  • the driven roller of the roller pair one, with a
  • Nonwoven fabric, combed out by a combing and tear-off fiber packets are fed discontinuously.
  • z. B. the previously necessary Pilger intimidierien known combers are avoided as z. B. has been described in WO 2006/012758 A1.
  • the combing and tear-off device consists of a nipper unit, which is associated with a combing cylinder, which on its circumference with a
  • the comber can be equipped with more than eight juxtaposed Kämmstellen, z. B. with up to 32 Kämmstellen.
  • Fig. 1 is a schematic side view of a combing head of a comber with the invention claimed nonwoven summary.
  • FIG. 2 shows a partial view X according to FIG. 1
  • Fig. 3 is an enlarged view Y of FIG. 1 without nipper unit
  • FIG. 4 is an enlarged sectional view A-A of FIG .. 3
  • Fig. 4a is a partial view of FIG. 4 with a further embodiment
  • FIG. 4b is an enlarged partial view of the Kalanderwalzenpases of FIG. 4 with
  • Fig. 1 shows a schematic side view of a Kämmstelle, or a
  • the nipper unit (short "pliers" called) to arrange stationary, wherein to form the nip KS only the upper nipper knife 3 with respect to a fixed pliers plate 2 moves.
  • a reciprocating pliers Z (see double arrow) is assumed, wherein the drive for the oscillatory movement of a gear G is made, which is connected via the schematically illustrated drive path 8 with the pivot axis 4 of the frame R of the pliers Z.
  • a lower tong plate 2 is a rotatably mounted
  • Feed roller 5 is arranged, which is connected to an intermittent drive, not shown, and for supplying a cotton wool W (or slivers) to the clamping point KS of the forceps.
  • the pliers Z is in a rear position and is closed.
  • the end of the wadding projecting beyond the clamping point KS (fiber tuft FB) is combed out through the clothing of a combing segment 11, which extends over a partial region of the circumference of a combing cylinder 10.
  • the combing cylinder 10 is rotatably mounted in the machine frame MS via the axis 13 and is driven by the gear G via the drive path 14 shown schematically.
  • the drive of the transmission G is carried out by a schematically illustrated main motor M, which communicates with a control unit ST via the line 44 in connection.
  • a tear-off segment 12 is mounted on the combing cylinder 10, which in conjunction with a displaceably mounted Abwalwalze 15 (see double arrow) the demolition of the
  • a sieve drum 17 Adjacent to the combing cylinder 10, a sieve drum 17 is arranged, which is rotatably supported via an axis 18 via the bearings 19 and 20 in the machine frame MS, such. B. from FIG. 2 and FIG. 3 can be seen.
  • the drive of the screen drum 17 via a drive wheel A3 (Fig. 3), which is rotatably mounted on the axis 18 and a schematically illustrated drive path AE with the transmission G in
  • Swivel axis 23 pivoting flap 22 is arranged, which has the task, depending on the position, the combed out components and the broken fiber packets to conduct accordingly. This should be avoided in particular that
  • this publication is to be taken from a corresponding embodiment of a screen drum, wherein within the screen drum still another, rotatably mounted cylinder is provided with openings to control the air flows during the Abreissund soldering process.
  • a simple screen drum 17 is shown, in the interior of which a stationary cover element 28 is arranged, which seals off the region of the screen drum, in which the fiber web V formed on the screen drum 17 is removed from the screen drum.
  • the interior of the screen drum 17 is connected via the line 26 to a vacuum source 25, via which a negative pressure is generated within the screen drum.
  • a pressure roller 30 is rotatably mounted, which z. B. rests on its own weight on the circumference of the sieve drum. It can the
  • Pressure roller may be mounted in corresponding guides in the machine frame MS in the direction of the peripheral surface of the screen drum.
  • the bearing of the pressure roller is mounted in pivot arms whose pivot axes are axially parallel to the axis of the screen drum 17 and stored in the machine frame MS.
  • the pressure roller 30 forms together with the sieve drum 17 a
  • Clamping point 31 for the guided between the screen drum and the pressure roller fiber web V extends over the width B of the guided on the outer circumference U of the screen drum 17 nonwoven fabric V.
  • the pressure roller can, for. B. be provided on its outer circumference with a rubber coating and is placed on the driven screen drum 17 and the web V via friction in rotational movement.
  • Guide member 31 is attached, via which the nonwoven fabric V (called “fleece” for short) laterally merged and to a fleece funnel 39 ("hopper” called) is discharged.
  • the sheet-like web V is combined to form a sliver F1, which for further compression following the funnel 39 through the nip KK of a press roller pair K is guided (Fig.4).
  • the pair of press rolls will be referred to as calender rolls K1 and K2 in the following description
  • the guide element 31 has a lower guide surface 37 which extends over a portion of the circumference U of the screen drum 17 and, as shown in section AA (FIG. 4) is adapted to the shape of the circumference of the screen drum 17. Between the circumference U of the screen drum 17 and the guide surface 37 is only a small distance, which only ensures that the guide element 31 is not on the circumference U of the sieve drum grinds
  • Guide member 37 is fixed via fasteners, not shown, with the
  • Machine frame MS connected and thus is in a fixed position to
  • the guide member 33 is provided with side guides 34 and 35, which are connected to the lower guide surface 37 and extend from the latter - with respect to the axis 18 of the screening drum 17 - to the outside ,
  • These side guides 34, 35 could also be arc-shaped, as seen in cross-section, in order to support the "curling-in" of the fleece edges as far as the transfer to the hopper.
  • the side guide 34 on which the web V first hits after leaving the nip 31, is provided with an arc R1, which merges into a straight portion 36 which extends under a sloping winding ⁇ to the hopper 39.
  • the opposite side guide 35 has first a straight portion 38 which has at an angle ß with respect to the axis 18 of the drum 17, which opens into an arcuate portion R2, via which the second
  • Fleece edge is fed to the hopper 39.
  • the cross section of the side guide 35 may be arcuate.
  • the hopper 39 is provided with downwardly extending side guides 41, 42, which the lateral guidance of the im Take funnel 39 combined fiber fleece up to the nip KK a subsequent Kalanderwalzenpases K.
  • Fig. 4a a partial section of Fig. 4 is shown, wherein the guide surface 37 'for the web V is not adjusted as in Fig. 4, the outer shape of the circumference of the screen cylinder 17, but at an angle ⁇ to the tangent Tg the screening drum 17 extends and opens into the hopper 39.
  • Guide means 33 is included in the claimed term "in the region of the peripheral surface (U) of the driven roller (17) extending, stationary guide means" included.
  • one of the calender rolls K1 of the calender roll pair K is non-rotatable and coaxial on the
  • Screen drum 17 is fixed and is located outside the area in which the web V with the width B in the feed to the nip 31 extends.
  • the second calender roll K2 is rotatably mounted via the bearing L1 in a pivot arm 49, which is mounted pivotably about a pivot axis 51 on the machine frame MS.
  • Calender roller K1 loaded by a spring 50, which is supported on the machine frame MS.
  • a pressure is exerted on the fiber material located in the nip KK of the calender rolls K1, K2 and this is further compressed in order to increase the adhesive force.
  • a bellows cylinder can be used instead of the spring 50 shown here z. B. also a bellows cylinder can be used.
  • the pivoting movement of the calender roll K2 in the direction of the calender roll K1 can be limited by attaching corresponding end stops (not shown) in order to prevent complete seating of the calender roll K2 on the calender roll K1.
  • the movement of the swivel arm 49 is monitored by a sensor 47 fixedly attached to the machine frame MS, the signals of which are transmitted via the line 48 to the central control unit ST. In the control unit ST, these signals are evaluated on the basis of existing programs.
  • the Pivoting movement of the pivoting lever 49 By scanning the Pivoting movement of the pivoting lever 49, the movement of the calender roller K2 is scanned, which is caused by the mass variations of the guided through the nip KK fiber material.
  • the representation can z. B. on a display AZ (eg., A screen), which is connected to the control unit ST. As soon as the determined CV value is outside the specified value
  • Tolerance limits moves can be triggered via the control unit ST an additional warning light and the corresponding Kämmstelle be stopped.
  • the calender roll K2 is driven by a drive wheel A2, which is in drive connection with the drive wheel A1 via a belt ZR (eg toothed belt).
  • the belt ZR is tensioned by tensioners, not shown, to compensate for the movements between the axes of the calender rolls K1, K2.
  • the drive wheel A2 is rotatably mounted on the axis 29, on which with the
  • Calender roll K2 is firmly connected.
  • the axis 29 is, as schematically indicated, stored in the bearing point L1, which is located in the pivot arm 49.
  • the drive wheel A1 is mounted on the axis 18 of the screen drum 17, which also represents the drive axis of the calender roll K1, since the
  • Calender roller coaxial and fixed to the sieve drum 17 is connected.
  • an additional axis for the calender roll K1 is saved and ensures an absolute synchronization between the screen drum 17 and the calender roll K1.
  • the axis 18 of the sieve drum 17 is on the bearings 19, 20 in
  • Machine frame MS rotatably mounted. Furthermore, a further drive wheel A3 is rotatably mounted on the axis 18, which has a schematically illustrated
  • Drive element AE with the gear G is in drive connection.
  • driven axle 18 is actively driven, but is displaced by friction under the action of the spring load (50) of the driven calender roller K1 in rotary motion.
  • calender rolls K1 and K2 are on their Outer circumference provided with a sinusoidal profiling 54, 55, which in the operating position shown, in the field of implementation of the fiber material,
  • Calender roller K2 driven by the calender roller K1, which is in drive connection with the gear G. Ie. in this design are not special
  • Calender roll pair K delivered sliver F1 increased.
  • the pliers Z In the position shown in Fig. 1, the pliers Z is closed and is in a rear position.
  • the fiber beard FB protruding from the clamping point KS of the forceps Z is replaced by the comb segment 11 of the
  • Combing cylinder 10 combed out.
  • the flap 22 is located near the circumference U of the following screening drum 17, so that the combed out components (noils) are discharged downwards in a suction channel, not shown.
  • Combing the pliers Z moves in a front position and is now at a shorter distance to the tear roller 15, which has been moved in the direction of the axis 13 of the combing cylinder 10 and with the tear-off 12 a
  • the tear-off segment 12 was by the rotational movement of the combing cylinder 10 during the forward movement of the pliers Z in the area below the
  • Screen drum 17 applied negative pressure on the end of the already resting on the circumference U of the screen drum 17 Fleece V and overlaid (soldering process) brought. Before handing over this demolished fiber packet to the
  • the screen drum 17 is driven at a constant speed and moves the web V on its circumference U to the nip 31 between the pressure roller 30 and the screen drum 17. After leaving the nip 31, the web V reaches the lower guide surface 37 of the guide member 33 and hits on the
  • the fleece transferred to the hopper 39 is thereby combined and compacted and is transferred via the hopper to the nip KK of a following and driven calender roll pair K (K1, K2). This transfer will be through the
  • Terminal point KK arrives, where it is further compressed. As already described, the mass fluctuations, the guided through the nip KK through
  • Fasergutes be detected and monitored by the pivotally mounted calender roller K2 by scanning the pivoting movement via the sensor 47.
  • Sliver F2 to F6, which were produced and discharged at adjacent Kämmstellen, is transferred to a subsequent drafting unit in the conveying direction FT.
  • a tape storage can be provided to deposit the sliver formed on the drafting unit in a pot.
  • the table T can also be powered by a conveyor, z. B. consist of a conveyor belt. The number of transported on the conveyor table
  • Fiber ribbons F1 to F6 is only an example. It can also be a far larger number of combs (more than 12) arranged next to each other, which also a larger number of slivers is fed to the following drafting. Also, a number of up to 48 adjacent Kämmstellen is possible.
  • the device proposed according to the invention is particularly advantageous for a combing machine with a large number (> 10) of adjacent combing points, in which the width of the nonwoven to be grasped is lower than is the case with conventional combing machines.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)

Abstract

L'invention concerne un dispositif pour la formation d'un ruban de fibres (F1), constitué par un textile non-tissé (V) formé sur une zone de peignage (1) d'une peigneuse, qui est amené en un point de pincement (31) d'une paire de cylindres (17, 30), comprenant un cylindre (17) lié à un groupe moteur et un cylindre de pression (30), cependant que, vu dans le sens de progression (F), le non-tissé est rassemblé après le point de pincement (31) et amené, via un entonnoir (39), à une paire de cylindres de pression (K) liés à un groupe moteur (G, M). En vue de simplifier le dispositif et d'éviter les défauts de rentrage, l'invention est caractérisée en ce que le non-tissé (V) est transporté, vu dans le sens de progression, après le point de pincement (31) de la paire de cylindres (17, 30), dans la zone de la surface périphérique (U) du cylindre moteur (17), vers l'entonnoir (39) et la paire de cylindres de pression (K) qui succède, et en ce que l'un des cylindres de pression (K1) de la paire de cylindres de pression (K) est monté, solidaire en rotation et coaxialement, sur le cylindre moteur (17).
EP10732257.0A 2009-07-10 2010-07-06 Dispositif pour la formation d'un ruban de fibres Not-in-force EP2452001B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH01077/09A CH701420A2 (de) 2009-07-10 2009-07-10 Vorrichtung zur Bildung eines Faserbandes.
PCT/CH2010/000173 WO2011003216A1 (fr) 2009-07-10 2010-07-06 Dispositif pour la formation d'un ruban de fibres

Publications (2)

Publication Number Publication Date
EP2452001A1 true EP2452001A1 (fr) 2012-05-16
EP2452001B1 EP2452001B1 (fr) 2013-11-06

Family

ID=42735845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10732257.0A Not-in-force EP2452001B1 (fr) 2009-07-10 2010-07-06 Dispositif pour la formation d'un ruban de fibres

Country Status (5)

Country Link
EP (1) EP2452001B1 (fr)
JP (1) JP5518189B2 (fr)
CN (1) CN102471948B (fr)
CH (1) CH701420A2 (fr)
WO (1) WO2011003216A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH709311A2 (de) 2014-02-27 2015-08-28 Rieter Ag Maschf Vorrichtung zur Bildung eines Faservlieses aus Faserpaketen.
CH714583A1 (de) * 2018-01-23 2019-07-31 Rieter Ag Maschf Antriebsvorrichtung für eine Kämmmaschine.
DE102018122276B4 (de) * 2018-09-12 2021-02-11 TRüTZSCHLER GMBH & CO. KG Kämmmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN172069B (fr) * 1987-12-24 1993-03-27 Rieter Ag Maschf
CH675886A5 (fr) 1988-11-23 1990-11-15 Rieter Ag Maschf
IT1283496B1 (it) * 1995-07-26 1998-04-21 Rieter Ag Maschf Pettinatrice per fibre
DE10300317A1 (de) * 2003-01-09 2004-07-22 Maschinenfabrik Rieter Ag Vorrichtung und Verfahren zum Verdichten eines Faservlieses
DE502005004034D1 (de) 2004-08-05 2008-06-19 Rieter Ag Maschf Kämmmaschine.
EP2044249B1 (fr) 2006-07-25 2011-06-15 Maschinenfabrik Rieter Ag Peigneuse

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011003216A1 *

Also Published As

Publication number Publication date
CN102471948A (zh) 2012-05-23
JP2012532256A (ja) 2012-12-13
JP5518189B2 (ja) 2014-06-11
CN102471948B (zh) 2014-06-18
WO2011003216A1 (fr) 2011-01-13
CH701420A2 (de) 2011-01-14
EP2452001B1 (fr) 2013-11-06

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