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EP2643507B1 - Métier à filer comprenant un dispositif de compression - Google Patents

Métier à filer comprenant un dispositif de compression Download PDF

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Publication number
EP2643507B1
EP2643507B1 EP11788333.0A EP11788333A EP2643507B1 EP 2643507 B1 EP2643507 B1 EP 2643507B1 EP 11788333 A EP11788333 A EP 11788333A EP 2643507 B1 EP2643507 B1 EP 2643507B1
Authority
EP
European Patent Office
Prior art keywords
suction
support
spinning machine
compaction
roller
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.)
Active
Application number
EP11788333.0A
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German (de)
English (en)
Other versions
EP2643507A1 (fr
Inventor
Gabriel Schneider
Ludek Malina
Radek Zarecky
Petr Blazek
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
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Publication date
Application filed by Maschinenfabrik Rieter AG filed Critical Maschinenfabrik Rieter AG
Publication of EP2643507A1 publication Critical patent/EP2643507A1/fr
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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

Definitions

  • the invention relates to a device for compressing a fiber structure on a spinning machine, which is discharged from a pair of output rollers of a drafting unit to a suctioned guide surface of a suction zone of a subsequent, acted upon with suction, driven, circumferential compression element, which at least one rotatable following the suction zone mounted pinch roller is assigned to form a nip line
  • a variety of designs are already known, for compacting (compacting) of the votes of a drafting unit fiber material (fiber strand) downstream of a compacting device.
  • a swirl-generating device is supplied.
  • Such a swirl generating device consists for. Example, in a ring spinning machine from a rotor which rotates on a ring, wherein the yarn produced is wound on a rotating sleeve.
  • compression means are substantially evacuated circumferential, perforated suction drums or circumferential, provided with perforations straps used.
  • a special suction region is defined on the compression element using corresponding inserts within the suction drum, or within the circumferential straps.
  • Such inserts can be z. B. are provided with correspondingly shaped suction slots, to which a negative pressure is applied, whereby a corresponding air flow is generated at the periphery of the respective compression element.
  • the fiber material discharged by the drafting unit is guided above or else below the compacting devices used.
  • Such devices are z. B. in the publications EP 947 614 B1 . DE 10 2005 010 903 A1 . DE 198 46 268 C2 . EP 1 612 309 B1 . DE 100 18 480 A1 and the CN 1712588 A shown and described.
  • the publications mentioned above are essentially permanently installed compression devices, which are permanently installed following the respective drafting system. The drive of these compaction devices takes place partly via special over the length of the spinning machine arranged drive shafts, which are either in drive connection with a suction roll or a rotating belt or permanently installed drive connection to correspondingly arranged pressure rollers of the compression device.
  • the fiber material discharged from the terminal point of the delivery rollers of the drafting unit does not come to rest in the region of the suction zone, which is located in front of the second terminal point. Ie.
  • the fiber material discharged by the drafting unit moves for the most part at a distance from the surface of the compacting device in the region of the suction zone.
  • a controlled compression, or integration of protruding fibers is not guaranteed.
  • the additionally installed compacting device is attached to the spinning machine, or to the drafting unit, is also not apparent from this publication.
  • a device wherein a compaction roller are received with a rotation locking roller in a bearing element, which is connected via a plate via screws with a pivotable loading arm of a drafting device.
  • the drive is transmitted via friction from a directly connected to a drive output roller and its associated pressure roller on the compression roller and the rotation locking roller.
  • the compacting device shown here is also suitable for retrofitting to existing drafting equipment of spinning machines provided without compaction.
  • the attachment of the compression unit shown here to an existing drafting unit via a screw, as well as the threading at the axis of the pressure roller is relatively time consuming and requires an additional Einjust réelle the distances. Similarly, the connection to a vacuum source must be made separately. Since the compaction roller is driven only indirectly by friction from a directly connected to a drive roller, arise in this solution drive losses.
  • the invention is therefore based on the object to propose a compression device, which can be easily and quickly installed on conventional drafting units, without additional drive elements are required.
  • the disadvantages of known designs should be avoided, with a simple and fast assembly and disassembly of a compacting device is ensured.
  • This object is achieved by proposing that the compression element and the pinch roller are rotatably mounted on a common carrier, which is fastened detachably via fastening means on the spinning machine and the, provided with openings, circumferential compression element has at least one drive element, which in the Transfer of the compression element from an inoperative position to an operating position with the lower roller of the pair of output rollers via a load device forms a drive connection, wherein the carrier has a suction channel for the suction of the compression element and a first end of the suction channel is in communication with the compression element and a second end of the suction channel ends in the region of the carrier with which the carrier is mounted in its mounted position on the spinning machine .
  • the additional compacting device as a complete replacement module perform which can be easily and quickly attached to existing devices for attachment to a conventional drafting system.
  • the compression element and the drive element may be located adjacent to a common axis of rotation.
  • the second end of the suction channel ends in the region of a bearing surface of the carrier, with which the carrier rests in the mounted or installed position on an element of the spinning machine.
  • the proposed integration of a suction channel within the carrier of a part of additional cable guides are avoided and on the other hand one obtains a compact and closed design, which allows the connection of the suction channel to existing elements of the spinning machine.
  • the element of the spinning machine to which the carrier is attached is a channel fixed to the spinning machine, which communicates with a vacuum source and is provided with openings arranged in the region of the attachment point of the respective carrier ,
  • the suction channel arranged in the carrier is simultaneously connected to the vacuum source in the attachment of the carrier to the channel.
  • the channel facing the end of the suction channel of the carrier is provided with the opening of the suction channel placed elastic sealing elements, wherein in the mounted and in the operating position of the respective carrier, the opening of the Suction channel and the respective opening of the channel facing the spinning machine and the sealing elements sealingly rest on the channel.
  • the channel has a circular cross-section and the carrier is provided with a unilaterally open, U-shaped end piece, with which it rests in the mounted position with its inner surface on the circular channel and this partially engages.
  • the U-shaped end piece serves as a fastening means, via which the carrier is attached to the spinning machine.
  • the trough is designed U-shaped, wherein the opening of the U-shaped end piece shows when mounting in the direction of the spinning machine. This makes it possible, for attaching the compression module, simply attach the carrier to the circular channel.
  • the dimension of the U-shaped end piece (in particular its clear width) is to be chosen so that a sufficient clamping force between the circular channel and the U-shaped end of the carrier is present.
  • the carrier should be at least partially elastic in the region of the end piece, so that an elastic deflection of the U-shaped legs of the end piece movement is possible.
  • This combination wherein the inner surface of the U-shaped end piece rests on a portion of the outer circumference of the circular channel, allows the carrier with the compacting device (as a complete compaction module) to be pivoted about the central axis of the circular channel. This makes it possible that the compression device can be pivoted away from the range of the output roller pair of the drafting unit without the carrier must be removed from the channel.
  • the pivoting movement can, as is generally known, be limited by corresponding stops.
  • the drive element as a friction wheel, which is frictionally held in the working position via a loading device in contact with the lower roller of the pair of output rollers.
  • the circumferential compression element may be formed from a suction drum. It is proposed that the suction drum has bearing elements, via which it is rotatably mounted on a, fixed to the carrier shaft and fixed on the shaft securing means in the axial direction on the shaft can be fixed. This allows a simple and quick disassembly and assembly of the suction drums on the shaft fixed to the carrier.
  • the pinch roller may be mounted below the suction drum, following the suction zone. Ie.
  • the fiber material discharged from the pair of delivery rollers of the drafting unit is deflected downwards and guided in a suction zone on the suction drum before it reaches the area of the nip with the pinch roller.
  • the friction wheel is formed as a symmetrical ring which rests with its circular inner surface on a portion of the peripheral surface of a circular projection which is connected axially parallel to the suction drum, wherein the inside diameter of the friction wheel is greater than the outer diameter of the approach.
  • This design leads to an advantageous and encapsulated against dust solution.
  • such a gear stage requires little power and is quiet, especially when the annular friction wheel is made of an elastic material (eg rubber).
  • the annular dimension of the friction wheel is to be chosen so that in the operating position, the friction wheel is in frictional contact on one of the driven rollers of the pair of output rollers and the peripheral surface the suction drum has a certain distance from the roller, which is in driving contact with the friction wheel.
  • the suction channel is connected to at least one suction pipe for a thread extraction. This makes it possible to combine the yarn extraction with a yarn break as well as the suction for the region of the suction zone with each other and to integrate in the module of the compacting device.
  • the opening of the suction channel is, as is well known, following the nip between the compression element and the associated pinch roller.
  • the pinch roller is fastened to the carrier via a spring element which carries a bearing receptacle for the axis of rotation of the pinch roller and generates a clamping force in the region of the nip on the compacting element.
  • the loading device for the pressure roller is integrated directly on the module of the compression device, which possibly necessary adjustments of the clamping force, or the nip can already be made before assembly to the spinning machine.
  • the carrier is mounted transversely to the axes of rotation of the pair of output rollers pivotally on the spinning machine and holding means are provided on the spinning machine, which protrude into the pivot region of the carrier-mounted elements and which limit the pivotal movement of the carrier at least in a pivoting direction.
  • the holding elements consist of spring elements fastened to the spinning machine, via which the drive wheel is held in frictional engagement with one of the rollers of the pair of delivery rollers in a locking position with the elements of the carrier designed as a latch. This allows two functions to be combined simultaneously.
  • the compaction module is held in a working position and on the other hand, a corresponding pressure force on the Applied friction wheel to produce a frictional engagement with the corresponding driven roller of the pair of output rollers.
  • two such spring elements are provided for a Verdichtungsmoduf, wherein in each case a spring element is arranged laterally of the carrier.
  • the drafting unit is designed as a double drafting system with two adjacent drafting systems with a common loading arm and each, the output roller pairs associated compression elements are rotatably mounted with pinch roller on a common carrier and the carrier with a common, with the compression elements in combination standing suction channel is provided.
  • double drafting systems are common practice.
  • the proposed embodiment provides a simple and compact solution with which, in particular, a retrofitting and equipping a spinning machine with such compression devices can be done quickly and easily.
  • the device is preferably used on a spinning machine.
  • FIG. 1 shows a schematic side view of a spinning station 1 a spinning machine (ring spinning machine) with a drafting unit 2, which is provided with an input roller pair 3, 4, a middle roller pair 5, 6 and a pair of output rollers 7, 8.
  • a strap 12, 13 out which are each held around a cage, not shown in detail in its illustrated position.
  • the upper rollers 4, 6, 8 of said pairs of rollers are designed as pressure rollers, which are rotatably mounted on the axes 4a, 6a, 8a on a pivotally mounted pressure arm 10.
  • the pressure arm 10 is pivotally mounted about an axis 15 and, as shown schematically, acted upon by a spring element F.
  • This spring element can, for. B. also be an air hose.
  • the roller pairs 3, 5, 7 are, as indicated schematically, connected to a drive A.
  • individual drives, as well as other forms of drive can be used.
  • the driven lower rollers 3, 5, 7, the pressure rollers 4, 6, 8, and the belt 13 are driven via the belt 12 via friction.
  • the peripheral speed of the driven roller 5 is slightly higher than the peripheral speed of the driven roller 3, so that the, the drafting unit 2 supplied fiber material in the form of a sliver L between the input roller pair and the middle roller pair 5, 6 is subjected to a pre-delay.
  • the main distortion of the fiber L arises between the middle roller pair 5, 6 and the pair of output rollers 7, 8, wherein the output roller 7 has a substantially higher peripheral speed than the center roller 5.
  • a pressure arm 10 is assigned to two adjacent drafting unit units 2 (twin drafting system). Since it is the same or partially mirror-image arranged elements of the adjacent drafting units, or compression devices, the same reference numerals are used for these parts.
  • the drawn out of the pair of output rollers 7, 8 stretched fiber material V is deflected downward and enters the region of a suction zone Z of a subsequent suction drum 17.
  • the respective suction drum 17 is provided with extending on its circumference perforations or openings ⁇ .
  • each a stationary mounted suction insert 18 is arranged within the rotatably mounted suction drum 17 .
  • the respective suction insert 18 can be held by means not shown in detail holding means of a carrier 20 in its installed stationary position.
  • a cover 51 is shown which may be pivotally adapted to provide access to the suction drums 17 for cleaning purpose.
  • the respective suction insert 18 on a portion of its circumference on a suction slot S, which extends substantially over the suction zone Z.
  • the respective suction drum 17 is rotatably mounted in the region of its outer end via bearings K on a shaft 22.
  • a locking ring 23 is mounted on the shaft, which prevents the axial displacement of the suction drum during operation. Ie. at a distance of the retaining ring 23, it is possible to subtract the respective suction drum 17 easily and in the axial direction of the shaft 22.
  • the openings ⁇ can be mounted in a single-row or multi-row on the circumference of the suction drum 17 or arranged in an offset manner.
  • the removal of the respective suction drum can also be done only for cleaning purposes.
  • the retaining ring can also z. B. be an O-ring made of rubber or a flexible clamping ring. This makes it possible, with the application of a small force, the suction drum 17 with its bearing L by hand in the axial direction of the shaft 22 deducted without the locking ring 23 must be dismantled.
  • the shaft 22 is mounted in a receptacle 25 of the carrier 20. This can be z. B. with fasteners, not shown (screws) done.
  • the shaft 22 has a somewhat larger diameter in the region of the receptacle 25, while the ends of the shaft 22 extending from this receptacle have a tapered diameter on both sides and serve to accommodate the respective bearings K.
  • the respective suction drum 17 has, at its end pointing away from the carrier 20, an annular projection 16 with an outer diameter D1.
  • On a portion of the outer periphery of the projection 16 is a portion of the inner surface IF of an annular friction wheel 28, wherein the inside diameter of this inner surface IF has a diameter D2.
  • FIG. 3 View Y after Fig.
  • the respective suction drum 17 is in a working position in which the outer circumference U of the friction wheel 28 rests on a correspondingly applied pressure load on the outer circumference U7 of the driven output roller 7.
  • the end cap 30 has been omitted in this view to better show the ratios of the gear stage.
  • the friction wheel 28 is driven by friction from the roller 7. Also via friction, the friction wheel 28 transmits the drive to the annular projection 16 of the suction drum 17. This takes place at the point where the inner surface IF with the inner diameter D2 of the friction wheel 28 and the outer circumference AU of the projection 16 with the outer diameter D1 touch or lie on each other.
  • the friction wheel 28 may be made of an elastic solid, such as. B. rubber.
  • the respective peripheral speed, or the speed of the suction drum 17 results from the selected diameter ratios D1 to D4. Ie. the ratio between the driven output roller 7 and the respective suction drum 17 is given by the ratio D ⁇ 4 D ⁇ 3 x D ⁇ 2 D ⁇ 1 , This makes it possible, depending on the choice of diameter ratios, to select the peripheral speed of the respective suction drum 17 to be greater or smaller than the peripheral speed of the driven output roller 7. In some cases, it is advantageous to choose the gear ratio so that the peripheral speed of the following suction drum 17 is slightly less than the peripheral speed of the output roller. B. a lateral displacement of the fiber material in the region of the suction zone Z above a correspondingly formed suction slot S be compensated. The suction zone Z extends (seen in the circumferential direction of the suction roller 17) approximately between the region where the friction wheel rests on the output roller 7 and the nip P between a pinch roller 33 and the suction drum 17th
  • FIG. 2 in the region of the annular projection 16, a cover cap 30 is fixed, which projects beyond the clear width D2 of the friction wheel 28 with its outer diameter.
  • the end cap 30 is provided with an annular projection 31 which projects into the inside width of the annular projection 16 of the suction drum 17.
  • the outer dimension of the annular projection 31 is chosen so that it is in the in FIG. 2 shown position a clamping action within the clear width of the approach 16 exerts.
  • the annular cap 31 may be provided with additional outwardly projecting cams, which engage for fixing the end cap 31 in circumferential recesses within the clear width of the projection 16.
  • the end cap 30 in the in FIG. 2 shown location is still a variety of designs possible.
  • the friction wheel 28 is held in the axial direction on the shaft 22 in its position.
  • FIG. 2 It can be seen that two suction drums 17 of adjacent spinning stations are rotatably mounted on the shaft 22 fixed to the carrier 20.
  • the suction drums 17 are arranged with a respective friction wheel 28 in mirror image with respect to the carrier 20.
  • a clamping roller 33 is provided for each of the suction drums 17, which rests on the respective suction drum 17 via a pressure load and forms with it a clamping line P.
  • the respective pinch roller 33 is rotatably mounted on an axis 32 which is fixed to a bearing element 35 which is connected by screws 34 (or other fasteners) with a spring element 36.
  • the spring element 36 via which a pressing force of the pinch roller 33 is generated in the direction of the suction drum 17, is fastened to the carrier 20 via the schematically illustrated screws 37 (or other fastening elements).
  • This attachment point can be designed in such a way (eg by means of oblong holes in the spring element 36), so that the contact force of the pinch roller 33 to the suction drum 17 is adjustable.
  • the nip P at the same time forms a so-called "rotation lock gap", from which the fiber material in the conveying direction FS in the form of a compressed yarn FK is supplied under rotation distribution of a ring spinning device shown schematically.
  • This is provided with a ring 39 and a rotor 40, wherein the yarn is wound on a sleeve 41 to form a coil 42 (Kops).
  • a yarn guide 43 is arranged between the nip line P and the rotor 40.
  • the ring 39 is attached to a ring frame 44, which performs an up and down movement during the spinning process.
  • the carrier 20 is provided at its end facing the spinning machine with a U-shaped or forked end piece 46, which in FIG. 1 and FIG. 5 shown attached position rests with its inner surface 47 on a portion of the outer periphery 49 of a suction tube 50.
  • the fork-shaped end piece 46 is formed such that the connecting line VL between the ends E of the tail at a distance a to the center axis MA of the suction pipe 50 extends. Ie. in the in FIG. 1 and FIG. 5 shown installed position of the carrier 20 is the distance c between the connecting line VL and a parallel plane thereto, which the inner surface 47 tangent to the dimension a greater than the radius r of the suction tube 50.
  • the carrier 20 is pushed onto the suction tube 50 in the position shown by a semicolon by means of a low pressure force shown in the direction of the arrow.
  • the material of the carrier 20, at least the material of the end piece 46 is selected such that when Aufsteckvorgang on the suction tube 50, the legs of the tail 46 can yield elastically, after completion of Aufsteckvorgang the inner surface 47 of the end piece 46 completely on the outer circumference 49 of the suction tube 50 rests.
  • the contact pressure between the end piece 46 and the suction tube 50 is selected so that a pivoting of the carrier 20 about the center axis MA of the suction tube 50 is made possible.
  • a spring bar 55 is provided on each side of the carrier, which is fastened via fastening elements 56 (eg screws) to the machine frame MR of the spinning machine.
  • fastening elements 56 eg screws
  • FIG. 5 can be seen in this position, a flat surface 61 of a semicircular rod 60 on the circumference of the circular bar 58 on.
  • the rod 60 is fixedly connected to the carrier 20 via a web 62.
  • FIG. 2 can be seen extending on both sides of the carrier 20, a semicircular rod 60 of the rests in the working position on the rod 58 and assumes a locking position in this position.
  • This locking position can only be solved by applying a corresponding force. This is the case when the compaction module VM in a lower dashed line position ( Fig. 1 ) has to be pivoted. This pivoting is necessary if the access to the drafting system outlet must be exposed for maintenance work or if the compression module itself must be serviced.
  • a stop 64 attached to the machine frame is provided.
  • the compression module can also be removed by manual removal from the suction pipe 50 of the spinning machine.
  • the spring rod 55 returns to its original position by the action of the spring.
  • the semi-circular surface of the rod 60 strikes the peripheral surface of the rod 58 and pushes it upon further pivoting in the dashed line position.
  • the flat surface 61 of the rod 60 is above the rod 58, this is moved back to the original position due to the spring force of the spring rod 55 and again assumes a locking position with the rod 60, as in FIG. 5 is shown.
  • a suction channel SK which has an opening S2 on the inner surface 47 of the end piece 46 and a further opening S1, which is arranged in the region of the receptacle 25 and communicates with the inner space 66 of the respective suction insert 18.
  • the opening S2 is in the working position of an opening SR of the suction pipe 50 opposite, whereby the interior of the suction pipe 50 is connected to the suction channel SK.
  • a sealing element DE is provided in the region of the inner surface 47 of the end piece 46, which is placed around the opening S2.
  • the sealing element DE is designed or mounted so that it comes into contact with the mounting of the carrier 20 on the outer circumference of the tube 50 and the connection point between the openings S2 and SR opposite the environment foreclosed.
  • a replaceable insert 92 may be provided in the region of the opening S2. This makes it possible, depending on the clear cross-sectional area of the insert 92, to influence the pressure conditions in the compression module. D. h., Depending on the distance of the mounting position of the compression module on the spinning machine from a stationary vacuum source, a corresponding insert 92 is used to obtain the same negative pressure conditions at all mounted compression modules.
  • the suction pipe 50 is connected via one or more connecting channels 70 with a central main channel 72.
  • This channel 72 is connected to a vacuum source SP in connection, which can be controlled via a control unit ST.
  • a suction tube 75 is fastened to both sides of the carrier 20, whose respective opening 77, which faces the carrier 20, is fastened to the Channel SK is connected.
  • The, viewed from the carrier, outwardly projecting end of the respective suction tube 75 is closed.
  • an opening 79 is mounted, which points in the direction of the pulled-down yarn FK. Ie.
  • the end of the further supplied yarn or yarn is supplied via the respective suction tube 75 under the action of the negative pressure generated via the vacuum source SP via the suction channel SK the suction tube 50, which this via the one or more channels 70 for further Transfer to a collection point to the main channel 72 emits.
  • compaction module also makes it possible to subsequently integrate or grow such a compaction unit on conventional spinning machines without having to install special further drive means (eg additional driven longitudinal shafts).
  • the drive of the suction drum, as well as the drive of the suction drum working together with the pinch roller is simply removed via the integrated friction module on the compression module of the already existing, driven output roller of the drafting unit 2. That is, there are no additional longitudinal shafts to attach to the spinning machine to integrate a device for compacting the sliver on the spinning machine.
  • Each compaction module VM is a closed unit per se and is provided in the proposed version for two adjacent spinning stations.
  • a yarn suction pipe 81 fastened to the suction pipe 50 by means of fastening means 80 (eg screws) on a conventional spinning machine can be removed and exchanged for a compacting module VM.
  • the channel 82 within the suction tube 81 also opens into the opening SR of the suction tube 50.
  • the Fadenabsaugrohr 81 is provided with a cross tube 85 which is in communication with a central pipe section 83.
  • openings 86, 87 are respectively provided in the region of the two ends of the cross tube 85 and point in the direction of the yarn drawn downwards in each case.
  • a U-shaped end piece 89 is fixed, which substantially corresponds to the end piece 46 which is attached to the compression module VM.
  • the opening 90 of the pipe section 83, which ends in the region of the end piece 89, is in the installed position of the opening SR of the suction pipe 50 opposite.
  • sealing elements can also be provided here, as have been described in the case of the compression module.
  • the other opening 84 is connected to the interior of the cross tube 85.

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

Claims (15)

  1. Dispositif de compression d'un assemblage de fibres (V) d'une machine à filer, lequel assemblage de fibres est délivré par une paire de rouleaux de sortie (7, 8) d'une unité de bancs d'étirage (2) à une surface de guidage à dépression d'une zone de dépression (Z) d'un élément de compression rotatif (17), placé en aval, qui est entraîné et soumis à une dépression d'air et auquel au moins un rouleau pinceur (33), monté à rotation, est associé en aval de la zone de dépression (Z) pour former une ligne de pincement (P), caractérisé en ce que l'élément de compression (17) et le rouleau pinceur (33) sont montés mobile en rotation sur un support commun (20) qui est fixé de façon démontable sur la machine à filer à l'aide de moyens de fixation (46) et en ce que l'élément de compression (17), pourvu d'orifices (Ö), comporte au moins un élément d'entraînement (28) qui forme une liaison d'entraînement conjointement avec le rouleau inférieur (7) de la paire de rouleaux de sortie (7, 8), par le biais d'un dispositif de contrainte (55, 58), lorsque l'élément de compression est transféré d'une position hors fonctionnement à une position de fonctionnement, le support comportant un conduit à dépression (SK) destiné à l'air en dépression de l'élément de compression (17) et une première extrémité (S1) du conduit d'aspiration (SK) étant reliée à l'élément de compression et une seconde extrémité (S2) du conduit à dépression (SK) se terminant au niveau du support (20), extrémité à laquelle le support est fixé à la machine à filer dans sa position montée.
  2. Dispositif selon la revendication 1, caractérisé en ce que la seconde extrémité (S2) du conduit à dépression (SK) du support (20) se termine au niveau d'une surface d'appui (47) du support (20) avec laquelle le support s'appuie sur un élément (50) de la machine à filer dans sa position de montée.
  3. Dispositif selon la revendication 1, caractérisé en ce qu'un étage de transmission (D1, D2) est disposé entre l'élément d'entraînement (28) et l'élément rotatif (17).
  4. Dispositif selon la revendication 3, caractérisé en ce que l'élément d'entraînement est une roue de friction (28) qui, dans la position de travail, est maintenue par friction en appui sur le rouleau inférieur (7) de la paire de rouleaux de sortie (7, 8) par le biais du dispositif de contrainte (55, 58).
  5. Dispositif selon la revendication 3 ou 4, caractérisé en ce que l'élément de compression rotatif est constitué d'un tambour à dépression (17).
  6. Dispositif selon la revendication 5, caractérisé en ce que le tambour à dépression (17) comporte des éléments de palier (K) qui permettent de monter ledit tambour d'aspiration à rotation sur un arbre (22) fixé au support (20) et de le fixer sur l'arbre (22) dans une direction axiale par le biais de moyens de fixation (23) montés sur l'arbre.
  7. Dispositif selon l'une des revendications 5 à 6, caractérisé en ce que la roue de friction (28) est configurée sous la forme d'un anneau symétrique qui appuie au niveau de sa surface intérieure circulaire (27) sur une zone de la surface périphérique (14) d'un appendice circulaire (16) qui est relié parallèlement à l'axe au tambour à dépression (17), le diamètre intérieur (D2) de la roue de friction (28) étant supérieur au diamètre extérieur (D1) de l'appendice (16).
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que le rouleau pinceur (33) est disposé au-dessous de l'élément de compression (17) en aval de la zone de dépression (Z).
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que le conduit à dépression (SK) est relié à au moins un tube à dépression (75) servant à aspirer les fils.
  10. Dispositif selon l'une des revendications 1 à 2, caractérisé en ce que le rouleau pinceur (33), monté à rotation sur un axe (32), est fixé au support (20) par le biais d'un élément élastique (36) qui supporte un logement de palier (35) destiné à l'axe (32) du rouleau pinceur (33) et qui génère une force de pincement au niveau de la ligne de pincement (P) sur l'élément de compression (17).
  11. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que le support (20) est fixé sur la machine à filer de façon à pouvoir pivoter transversalement aux axes de rotation (7a, 8a) de la paire de rouleaux de sortie (7, 8) et des moyens de retenue (55, 58) sont disposés sur la machine à filer, lesquels font saillie dans la zone de pivotement depuis des éléments (60, 62) fixés au support (20) et qui limitent le mouvement de pivotement du support au moins dans une direction de pivotement.
  12. Dispositif selon la revendication 11, caractérisé en ce que les moyens de retenue sont constitués d'éléments élastiques (55), fixés à la machine à filer, lesquels permettent de maintenir la roue d'entraînement (28) en liaison de friction avec l'un des rouleaux (7, 8) de la paire de rouleaux de sortie dans une position de verrouillage avec les éléments du support (20), configurés sous la forme d'un verrou (60, 62).
  13. Dispositif selon la revendication 1, caractérisé en ce que des inserts échangeables (92) sont disposés au niveau de la seconde extrémité (S2) du conduit à dépression (SK) du support (20) afin d'adaptation les sections transversales.
  14. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'unité de bancs d'étirage (2) est configuré sous la forme d'un double banc d'étirage comportant deux bancs d'étirage adjacents équipés d'un bras de contrainte commun (10) et les éléments de compression (17) associés respectivement aux paires de rouleaux de sortie (7, 8) sont montés, conjointement le rouleau pinceur (33), à rotation sur un support commun (20) et le support est équipé d'un conduit à dépression commun (SK).
  15. Machine à filer équipée d'un dispositif selon l'une des revendications 1 à 14.
EP11788333.0A 2010-11-26 2011-11-23 Métier à filer comprenant un dispositif de compression Active EP2643507B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH19922010A CH704137A1 (de) 2010-11-26 2010-11-26 Vorrichtung zum Verdichten eines Faserverbandes an einer Spinnmaschine sowie Spinnmaschine.
PCT/CH2011/000280 WO2012068693A1 (fr) 2010-11-26 2011-11-23 Métier à filer comprenant un dispositif de compression

Publications (2)

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EP2643507A1 EP2643507A1 (fr) 2013-10-02
EP2643507B1 true EP2643507B1 (fr) 2015-03-11

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EP11788333.0A Active EP2643507B1 (fr) 2010-11-26 2011-11-23 Métier à filer comprenant un dispositif de compression

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US (1) US9127378B2 (fr)
EP (1) EP2643507B1 (fr)
JP (1) JP5940082B2 (fr)
CN (1) CN103221593B (fr)
CH (1) CH704137A1 (fr)
WO (1) WO2012068693A1 (fr)

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CH705307A1 (de) 2011-07-25 2013-01-31 Rieter Ag Maschf Spinnmaschine mit einer Verdichtungsvorrichtung.
CH706258A2 (de) * 2012-03-21 2013-09-30 Rieter Ag Maschf Tragelement für eine Verdichtungsvorrichtung.
CH706840A1 (de) 2012-08-15 2014-02-28 Rieter Ag Maschf Verriegelungvorrichtung an einer Textilmaschine.
CH709312A1 (de) * 2014-02-27 2015-08-28 Rieter Ag Maschf Verdichtungsvorrichtung mit Saugtrommel.
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Also Published As

Publication number Publication date
CN103221593B (zh) 2016-08-10
EP2643507A1 (fr) 2013-10-02
WO2012068693A1 (fr) 2012-05-31
JP2013543937A (ja) 2013-12-09
CH704137A1 (de) 2012-05-31
US20130239369A1 (en) 2013-09-19
CN103221593A (zh) 2013-07-24
JP5940082B2 (ja) 2016-06-29
US9127378B2 (en) 2015-09-08

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