WO2019115356A1 - Banc d'étirage et dispositif de serrage pour une machine à filer - Google Patents

Banc d'étirage et dispositif de serrage pour une machine à filer Download PDF

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Publication number
WO2019115356A1
WO2019115356A1 PCT/EP2018/083840 EP2018083840W WO2019115356A1 WO 2019115356 A1 WO2019115356 A1 WO 2019115356A1 EP 2018083840 W EP2018083840 W EP 2018083840W WO 2019115356 A1 WO2019115356 A1 WO 2019115356A1
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WO
WIPO (PCT)
Prior art keywords
suction tube
suction
output
roller
lever
Prior art date
Application number
PCT/EP2018/083840
Other languages
German (de)
English (en)
Inventor
Gerd Stahlecker
Gernot Schaeffler
Karlheinz Huber
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
Priority to CN201880080040.8A priority Critical patent/CN111465727B/zh
Publication of WO2019115356A1 publication Critical patent/WO2019115356A1/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 present invention relates to a drafting system for a spinning machine, with upper and lower rollers and with a load arm, on which the top rollers of the drafting arrangement are arranged, with a pair of output rollers, which is formed by a Popeberwalze and a Popeunterwalze, with a on the loading arm arranged on the loading arm, on which the topmost roller is arranged, and with a pneumatic compacting device arranged downstream of the output roller pair of the drafting system for compressing a stretched fiber structure which has a suction pipe which can be suctioned and a corresponding compacting device.
  • Draw frames for spinning machines comprise at least two pairs of rollers between which a fiber strand is drawn due to the different speeds of rotation of the roller pairs.
  • the roller pair after which the drawn fiber structure leaves the drafting system and is fed to a spinning device, is referred to as a pair of delivery rollers.
  • the output roller pair consists of an output top roller and an output bottom roller, which form a nip through which the fiber band is conveyed.
  • Devices for compacting the drawn fiber composite are arranged after the pair of delivery rollers. Mechanical as well as pneumatic compacting devices are used.
  • the compacting device disclosed therein is of pneumatic construction and consists essentially of a suction shoe and a perforated th means of transport.
  • a pressure element is applied to one of the rollers of the pair of output rollers, which forms a second nip with the roller next to the nip between the output top roller and the bottom roller output.
  • DE 100 50 089 A1 does not go.
  • a disadvantage of the proposed device is that an irregular compression of the fiber structure can take place due to the random adjustment of the pressure element on the roller of the output roller pair.
  • the compacting device disclosed therein is also of a pneumatic design with a hollow profile and a perforated transport means for the compacting device.
  • the fiber bundle leaving the delivery roller pair of the drafting system is placed on the perforated transport means and guided by the latter over the hollow profile.
  • the hollow profile can be pressed by at least one frictional element against one of the rollers. How this frictional element is formed and where it is fastened is not apparent from this document.
  • a disadvantage of the disclosed device is that a force-fit element alone can not yet ensure that the hollow profile can be pressed against the roller in a defined manner.
  • a defined pressing of the hollow profile to the top roll is here dependent on the position of the top roll, which in turn is dependent on the setting of the pressure arm of the drafting system carrying it.
  • the object of the present invention is to further develop known devices and to provide a compacting device that is simple in design and can be used at individual spinning stations, which is characterized by a reliably uniform compression of the fiber structure.
  • the object is achieved by a drafting system with the features of the independent claims.
  • An inventive drafting system for a spinning machine has top and bottom rollers and a loading arm on which the top rollers of the drafting arrangement are arranged on.
  • An output roller pair is formed by an output top roller and an output bottom roller, which is often an output sub-cylinder extending over a plurality of drafting devices arranged parallel to each other.
  • On the loading arm a loading unit is arranged, to which the output top roller is fastened.
  • the output roller pair of the drafting system is followed by a pneumatic compacting device for compacting a stretched fiber structure.
  • the compression device has an absorbable suction tube.
  • the suction pipe is arranged on a lever.
  • This lever ensures that the suction tube can be picked up and fixed in a defined way.
  • the lever itself is rotatably mounted on the loading unit and / or displaceable.
  • the suction tube is raised together with the loading arm and moves away from the lower rollers with the opening of the drafting system, ie with the lifting of the loading arm.
  • the setting of the suction tube to the top top roller and / or the bottom roller output is thus maintained even when opening the drafting system. A once made setting is thus retained. This creates a reliable and even compaction of the fiber structure.
  • the lever on the loading unit and the suction pipe causes a defined position of the suction pipe.
  • the suction pipe is arranged.
  • a defined assignment of the suction pipe to the output top roll is made possible. This also ensures that the suction tube is evenly distributed on the topmost roller or, if the top roller is in contact with the is pressed, the output lower roller is applied. There is no angular misalignment between the suction tube and the output top roller or the output bottom roller, the suction tube and the top roller or the bottom roller are parallel to each other and thus cause a uniform compaction of the fiber structure.
  • a spring device which acts on the suction tube and / or the Flebel.
  • the suction tube is thus pressed elastically against the output top roller or the output bottom roller. If, for example, thick spots are drawn into the nip between the suction tube and the output top roller or output bottom roller, the suction tube can escape and damage to the suction tube is avoided.
  • the suction pipe is looped by a sieve element. Fibers from the fiber structure are thus not sucked in through the suction tube.
  • the fiber strand can be evenly compressed and transported through the clamping point between the suction tube and the top and bottom rollers.
  • the compacting device has a fiber-bundling zone and the fiber-bundling zone is delimited by two clamping points.
  • a first nip is defined by the rollers of the pair of outfeed rollers, and a second nip is formed by one of the two rollers of the outfeed roller pair and the screen element.
  • the fiber structure is clamped at these two clamping points and is compressed on the suction tube, which causes a suction of the fiber composite between the two clamping points.
  • the Flebel receives two, in particular interconnected, suction tubes.
  • Each of the suction tubes is assigned to one of two adjacent drafting systems.
  • the one lever is thus arranged on a loading unit and supplies the two juxtaposed drafting units, the upper rollers of which carries the loading arm, via the suction tubes with the necessary for the compression device suppression.
  • the construction is particularly simple when the two intake pipes are pneumatically connected with each other. It is thus possible that two intake manifold connections are not required to supply the intake manifolds with negative pressure, but that only one connection is necessary through which the two adjacent intake points can be simultaneously aspirated.
  • the suction tube is tiltably mounted in the lever and / or the lever in the loading unit is tiltable about a tilting axis oriented transversely to the axis of the output top roller, then parallel alignment with respect to the output top roller axis is enabled.
  • the tilting of the suction tube thus enables an independent alignment of the suction tube with respect to the output top roller, in particular when the suction tube is pressed against the output top roller.
  • the suction tube is elastically, in particular with a spring device on the loading unit and / or the load arm is supported and pressed against the réelleoberwalze or output lower roller is.
  • the spring which in a preferred embodiment is also adjustable in its pressing force, ensures a uniform loading of the suction tube and thus for a continuous and uniform compression of the fiber structure.
  • the suction tube is connected to a tensioning device for the sieve element.
  • the sieve element which wraps around the suction pipe, is preferably laid around the suction pipe with a defined clamping force.
  • the clamping device which is arranged on the suction tube, thereby ensures a defined and uniform prestressing of the sieve element on the suction tube.
  • the suction pipe in particular separable, is preferably arranged on a suction pipe.
  • the suction tube is used to connect the suction pipe with a suction source, which is arranged in the spinning machine.
  • the suction pipe and / or the suction pipe are preferably arranged on the lever by means of a suction pipe holder.
  • the Saugrohrhalter can turn the suction tube rotatably attached to the lever. Due to the separability of suction tube and suction tube, it is possible to clean any obstruction of the suction tube, caused for example by fiber fly.
  • the suction tube is arranged stationary on the drafting system.
  • the suction tube thus connects the suction pipe with the likewise stationary in the spinning machine arranged suction source.
  • the suction tube may have a separation point, wherein a first part of the suction tube is pivotable together with the suction tube and the loading arm and a second part in the area of the lower rollers is stationary, if at all elastically mounted, attached to the drafting system or the spinning machine - is in order. It is thus a connection between the movable loading arm, which is moved to open the drafting of the lower rollers and the stationary part of the suction device, which is arranged in the spinning machine, causes.
  • a connecting device is provided for connecting the first to the second part of the suction tube.
  • This connecting device which for example is funnel-shaped, makes it possible for the first part of the suction tube to be pivoted away together with the loading arm and the first part of the suction tube thus to be released from the second part of the suction tube.
  • the first part of the suction tube is again preferably automatically connected to the second part of the suction tube, so that aspiration of the suction tube can take place again.
  • suction pipes for two adjacent intake pipes are arranged on the side of the lever.
  • Each suction pipe is thus besaugbar independently of the adjacent intake manifold. This ensures an individual and also optionally individually adjustable suction of the compression device.
  • two adjacent suction pipes lead into a common suction pipe. This results in a simple design solution and is in most cases sufficient for a uniform intake of two adjacent drafting systems or compaction devices.
  • the suction pipe is arranged rotatably and / or displaceably on the lever, then the position of the suction pipe can be set exactly with respect to the starting upper roll or the lower discharge roll.
  • a compression device for a drafting system with a suction pipe which can be suctioned
  • the suction pipe is arranged on a lever and the lever is mounted rotatably and / or displaceably on a loading unit.
  • a spring device is provided which acts on the suction tube and / or the lever in order to be able to press the suction tube elastically against the output upper roller or the output lower roller.
  • the compacting device can thus be subsequently arranged on a loading arm or loading unit and thus supplement an existing drafting system with a compacting device. This is particularly advantageous when existing spinning machines are to be retrofitted and a new type of compacting device is to improve the drafting system.
  • FIG. 1 shows a schematic representation of a longitudinal section of a spinning machine
  • FIG. 2 shows a side view of a compacting device
  • FIG. 3 shows a further exemplary embodiment
  • FIG. 4 shows a further exemplary embodiment
  • Figure 5 is a front view of a loading arm
  • Figure 6 is a perspective view of a Saugrohrhalters
  • Figure 7 shows another embodiment
  • Figure 8 shows another embodiment
  • Figure 9a shows an embodiment for supporting the axis of the suction pipe and
  • FIG. 9b is a sectional view of a sleeve for supporting the axle according to FIG. 9a.
  • the same reference numbers are used for features which are identical and / or at least comparable in their design and / or mode of action. Unless these are explained again in detail, their design and / or mode of action of the design and mode of action corresponds to the features already described above.
  • 1 shows a schematic representation of a longitudinal section of a spinning machine, in particular a ring spinning machine with a compacting device 20. Shown are, by way of example, individual components of the spinning machine, namely a drafting system 2 and a spinning device 10.
  • the drafting system 2 consists of three pairs of rollers, one Input roller pair 3, a Riemchenwalzencru 4 and a pair of output rollers 5.
  • the output roller pair 5 is formed by a Congressoberwalze 6 and an output lower roller 7.
  • the two rollers of a pair of rollers are pressed against each other and form at its point of contact a terminal point, wherein the clamping point K1 is formed by the output roller pair 5 between the output top roller 6 and the output bottom roller 7.
  • a nip K2 is formed by a suckable suction tube 17 ( Figure 2), which presses against the top roller 6.
  • the fiber strand 1 entering the drafting system 2 is clamped by the clamping points between the rollers of the roller pairs 3, 4 and 5 and is stretched due to the different speeds of the roller pairs 3, 4 and 5.
  • the drawn fiber composite 8 reaches the compacting device 20 in which it is compacted.
  • the clamping point K1 and K2 at the suction tube 17 having a suction slot, there is a fiber-bundling zone in which the fibers of the fiber structure 8 are bundled or compacted.
  • the fiber structure 8 reaches the yarn guide 9 and is continued to the spinning device 10.
  • the spinning device 10 consists essentially of a ring rail 14, which carries the spinning ring 12, and a spindle rail 15, on which the coil 13 is mounted.
  • the fiber structure 8 passes through a rotor 11 to the coil 13.
  • the coil 13 is rotated, this has the consequence that the rotor 11 is also rotated by the fiber structure 8 on the ring 12 in rotation.
  • the fiber structure 8 is given a rotation, thereby forming a yarn which is wound on the spool 13 by moving the ring rail 14 up and down.
  • the upper rollers can be lifted by the lower rollers.
  • FIG. 2 shows a side view of a compacting device 20 in the region of the output roller pair 5.
  • the upper roller 6 is pressed onto the output lower roller 7 and forms with it a clamping point K1.
  • the top roller 6 is fastened in a known manner by means of holders on the loading arm 19.
  • the clamping point K2 is effected between the upper roller 6 and a suction pipe 17, which is pressed by means of a spring 21 against the réelleoberwalze 6.
  • the suction pipe 17 has a suction slot 32, through which air is sucked.
  • the fiber structure 8 (FIG. 1) is bundled and compacted. So that the fibers of the fiber structure 8 are not sucked into the suction slot, the suction slot is surrounded by a sieve element 18.
  • the sieve element 18 wraps around the suction tube 17 and is tensioned by means of a tensioning device 22.
  • the tensioning device 22 is attached to the suction pipe 17 and a Saugrohrhalter 23, respectively.
  • the tensioning device 22 can thus be moved together with the suction tube 17, so that a movement of the suction tube 17 has no influence on the tension of the screening element 18.
  • the suction pipe 17 is connected to a suction pipe 24. Air is sucked out of the suction pipe 17 through the suction pipe 24.
  • Suction tube 17 and suction pipe 24 can be made in one piece in one unit.
  • Suction tube 17, clamping device 22 and suction tube 24 are in this exemplary embodiment attached to the intake manifold 23 or executed as a structural unit.
  • suction tube 17 and suction tube 24 are detachably connected to one another, so that any soiling is easy to clean by removing the suction tube 17 from the suction tube 24, and thus the interiors of the suction tube 17 and the suction tube 24 for a Cleaning are easily accessible.
  • the suction pipe 17 is preferably inserted into an opening of the suction pipe 24 or the suction pipe holder 23 and is optionally fixed there, for example by means of a screw.
  • the suction tube holder 23 and thus the suction tube 17 are arranged indirectly on the loading arm 19.
  • the Saugrohrhalter 23 is attached to a lever 25 for this purpose.
  • the lever 25 is mounted rotatably about a pivot point DS in a loading unit 26.
  • the loading unit 26 is fixed to the loading arm 19 and also carries the output top roller 6.
  • the output top roller 6 is pressed against the output lower roller 7 with a loading spring 27 when the loading arm 19 is closed.
  • the attachment of the loading unit 26 to the loading arm 19 takes place in this embodiment by means of an indicated fastening element, for example a clamping screw, in a slot 28 of the loading arm 19.
  • the fastening element permits in particular a displacement of the loading unit 26 within the slot 28.
  • the position of the lever 25 and thus the position of the suction tube 17 with respect to the output upper roller 6 and with respect to the lower output roller 7 can be changed become.
  • An optimal setting of the suction tube 17 with respect to the output sub-roller 7 and the position of the clamping point K2 on the output top roller 6 can thus be adjusted.
  • the setting of the suction tube 17 with respect to the output roller pair 5 is not changed.
  • the spring 21 pushes the suction tube 17 with a predetermined force against the output top roller 6.
  • the spring 21 is for this purpose attached to the loading unit 26 and the Flebel 25.
  • a certain elasticity of the clamping point K2 is achieved, so that, for example, a massive thick part of the fiber structure 8 is not to be damaged in the compression device 20 since it can deflect against the spring pressure.
  • the upper rollers 6 of two parallel drafting units 2 are fastened to a loading arm 19.
  • the upper rollers 6 are arranged in the manner of tandem rollers by means of an axle on the loading unit 26 of the loading arm 19.
  • Each of the upper rollers 6 protrudes laterally beyond the loading arm 19. Accordingly, two compression devices of adjacent drafting devices 2 are preferably fastened to a loading arm 19.
  • each suction pipe 17 of a drafting system 2 has an exhaust pipe 24.
  • two suction pipes 17 and two suction pipes 24 are provided on a loading arm 19.
  • Each of them is attached to its own suction tube holder 23 and a Flebel 25 together with the clamping device 22 and carries a sieve 18.
  • the suction tube 23 and Flebel 25 are rotatably mounted on the loading unit 26.
  • FIG. 3 shows a section through the loading arm 19 with a further embodiment of the compacting device 20.
  • a slot 28 is arranged, in which the fastening element of the loading unit 26 is displaceably arranged.
  • the Flebel 25 is rotatably connected to the load assembly 26 at the end facing away from the suction tube 17 at point DS and thus also rotatably holds the suction tube 24, the suction tube 17 and the clamping device 22 with the sieve 18 by means of Saugrohrhalters 23.
  • the spring 21 'presses the fleece 25 and thus in particular the suction tube 17 against the output top roller 6.
  • the spring 21 ' is for this purpose on a bearing element 40 of Belas-
  • the lever 25 and its lever bearing 41 thereby rotate about the pivot point DS and thus press the suction tube 17 against the top roller 6.
  • the suction tube holder 23 is longitudinally adjustable on the lever 25 is arranged.
  • the suction tube 17 can also be adjusted in position on the suction tube holder 23 if the fastening of the suction tube 17 has corresponding adjustment devices on the suction tube 24 and / or the suction tube holder 23.
  • the suction from the suction tube 17 by means of the centrally located between the two adjacent suction pipes 17 suction tube 24 and a second part of the suction tube 30.
  • the two parts 24 and 30 are rotatably connected to each other in the pivot point DS. This ensures that the extraction can take place without the rotational movement of the lever 25 or of the suction tube holder 23 being restricted.
  • the second part of the suction tube 30 is fastened to the loading arm 19 by means of a clamp 31. The suction tubes 24 and 30 are thus lifted together with the loading arm 19.
  • FIG. 4 shows an embodiment of the invention in which, again, a central suction tube 24 is provided, in which two suction tubes 17 are connected to a suction tube 24.
  • the suction pipes 17 of adjacent drafting systems 2 can either be pneumatically connected to each other or be designed separately. In a separate embodiment, a splitting of the mouth of the suction tube 24 in the region of the suction tube 17 is required.
  • the further connection of the suction tube 24 can then via a second part of a suction tube 30, which at the Be Lastungsarm 19, for example, with a clamp 31, is attached done.
  • the second part of the suction tube 30 is designed to be flexible in order not to hinder the mobility of the first part of the suction 24 together with the suction tube 17 and the lever 25. This can be done either with a flexible hose or a corresponding joint. Alternatively, of course, the mobility of the suction tube 17 can also be effected by an elastic connection between the suction tube 24 and suction tube 17.
  • the mobility of the suction tube 17 is in turn ensured by the lever 25, which is pivotable about the pivot point DS and biased by the spring 2T.
  • the spring 2T is supported, as in FIG. 3, on the bearing element 40 and the lever bearing 41.
  • the clamping device 22 is attached to the suction pipe 17 and the suction tube 24.
  • FIG. 5 shows a front view of a loading arm 19 with two drafting devices 2, 2 'arranged parallel thereto.
  • two output upper rollers 6, 6 ' are fastened via a common axle 29.
  • the fastening of the levers 25, 25 "on the loading unit 26 takes place on an axis 42 in the pivot point DS.
  • the attachment is preferably such that a tilting of the lever 25 with the axis 42 is possible.
  • an automatic adjustment of the two intake pipes 17, 17 'relative to the output top rollers 6, 6' is made possible. This ensures that the suction tubes 17,17 "are always aligned parallel to the axis 29 and thus to the surfaces of the output top rollers 6,6 '.
  • the spring 21, with which the suction pipes 17, 17 "are pressed against the top rollers 6, 6", is shown in this figure for reasons of clarity not shown, but may be designed as described in the previous figures.
  • the elongated hole 28 is arranged on the upper side of the loading arm 19. The loading unit 26 can thus be adjusted as needed.
  • FIG. 6 shows a perspective view of an example of a suction tube holder 23, on which two suction tubes 17, 17 'are arranged.
  • the suction pipes 17, 17 ' can either be made separately or they can also be formed in one piece. Preferably, they are inserted into a receptacle of the suction tube holder 23 and fixed there.
  • Each suction tube 17, 17 ' has a suction slot 32, 32', which effects bundling of the fiber composite.
  • These are designed here such that they have two cylinders 33,33 ", which are stretched for example by means of a spring.
  • Arranged on the two cylinders 33, 33 ' is a transverse rod 34, around which the sieve elements 18, 18' '(see previous figures) are placed and clamped in relation to the suction tubes 17, 17'.
  • FIG. 7 once again shows an embodiment which has a central suction tube 24.
  • the central suction tube 24 constitutes the first part of the suction device.
  • a connecting device 35 By means of a connecting device 35, the first part of the suction tube 24 is connected to the second part of the suction tube 30.
  • the suction pipe 30 is attached to the spinning machine and executed stationary.
  • the connecting device 35 is made detachable, so that when the loading arm 19 is lifted, the first part of the suction tube 24 is released from the second part of the suction tube 30.
  • the connecting device 35 can be designed as shown here and a Have seal.
  • connecting aids for example insertion bevels or guide levers, are provided which allow a simple and preferably automatic connection of the first part of the suction tube 24 to the second part of the suction tube 30 and seal this connection point at the same time ,
  • FIG. 8 shows a further exemplary embodiment of the present invention. It has a construction similar to that of the exemplary embodiment from FIG. 2. The difference is that the suction tube 17 is not pressed against the output upper roller 6, but against the lower output roller 7. The second clamping point K2 for the fiber structure is thus created between suction tube 17 and output sub-roller 7. Accordingly, the fiber assembly does not leave the compacting device between the suction tube 17 and the output top roller 6, but between the suction tube 17 and the output lower roller 7. The suction tube 17 with its suction slot 32 and the tensioning device 22 for tensioning the screening element 18 are rotated relative to FIG Sieve element 18 to keep in a suitable manner in the region of the fiber bundle zone 16 stretched.
  • Figure 9a shows the attachment of the Flebels 25 to the loading unit 26 such that a tilting of the Flebels 25 with the axis 42 is possible.
  • H ier by an automatic adjustment of the suction tube 17 relative to the topmost roller 6 is possible.
  • Flier pen the suction tube 17 can be aligned parallel to the axis 29 and thus to the surface of the output top roller 6.
  • the tilting is made possible by the fact that the axle 42 is mounted in an F sleeve 45 which has an expansion of the passage opening for the axle 42 towards the edge. If this widening is circular, the axle 42 can tilt in all directions. However, if the expansion exists only in one direction, it is only possible to tilt the axle 42 in this direction.
  • Flier pen can be made so that the suction tube 17 is only tilted with respect to the roller 6 so that it is on the roller 6 li nienförmig can create, without essentially changing the distance to the second nip K2.
  • the sleeve 45 is shown schematically.
  • the sleeve 45 is mounted in the loading unit 26.
  • the central passage of the sleeve 45 is widened towards its ends.
  • the axis 42 shown here in dashed lines in three positions can accordingly tilt in the sleeve 45 and thus cause an optimal adaptation of the suction tube 17 to the roller 6.
  • the device is designed according to the preceding description, wherein said features may be present individually but also in any combination.

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

Abstract

Un banc d'étirage destiné à pour une machine à filer comprend des rouleaux supérieur et inférieur, un bras de pression (19) sur lequel sont disposés les rouleaux supérieurs du banc d'étirage (2), une paire de rouleaux de sortie (5) formée par un rouleau de sortie supérieur (6) et un rouleau de sortie inférieur (7) et une unité de charge (26) qui est disposée sur le bras de pression (19) et au niveau de laquelle le rouleau de sortie supérieur (6) est disposé. En aval de la paire de rouleaux de sortie (5) du banc d'étirage (2) est disposé un dispositif de serrage pneumatique destiné à serrer une structure de fibres étirée (8) qui comporte un tube d'aspiration (17) pouvant être mis sous pression négative. Le tube d'aspiration (17) est disposé au niveau d'un levier (25), le levier (25) est monté de façon rotative et/ou coulissante sur l'unité de pression (26) et un dispositif à ressort (21 ; 21', 40, 41) est prévu qui agit sur le tube d'aspiration (17) et/ou le levier (25) pour presser le tube d'aspiration (17) élastiquement contre le rouleau de sortie supérieur (6) ou le rouleau de sortie inférieur (7). Un dispositif de serrage correspondant comprend un tube d'aspiration (17) pouvant être mis sous pression négative et une unité de pression (26). Le tube d'aspiration (17) est disposé au niveau d'un levier (25), le levier (25) est monté de manière rotative et/ou coulissante au niveau de l'unité de pression (26) et un dispositif à ressort (21 ; 21', 40, 41) est prévu qui agit sur le tube d'aspiration (17) et/ou le levier (25) pour pouvoir presser le tube d'aspiration (17) élastiquement contre le rouleau de sortie supérieur (6) ou le rouleau de sortie inférieur (7).
PCT/EP2018/083840 2017-12-15 2018-12-06 Banc d'étirage et dispositif de serrage pour une machine à filer WO2019115356A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880080040.8A CN111465727B (zh) 2017-12-15 2018-12-06 用于纺纱机的牵伸装置和压缩装置

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DE102017130224.7 2017-12-15
DE102017130224.7A DE102017130224A1 (de) 2017-12-15 2017-12-15 Streckwerk und Verdichtungsvorrichtung für eine Spinnereimaschine

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Publication number Priority date Publication date Assignee Title
DE102019115219A1 (de) * 2019-06-05 2020-12-10 Maschinenfabrik Rieter Ag Saugrohr für eine Verdichtungsvorrichtung und Vorrichtung zum pneumatischen Verdichten eines verstreckten Faserverbandes
DE102019115218A1 (de) * 2019-06-05 2020-12-10 Maschinenfabrik Rieter Ag Verdichtungsvorrichtung für ein Streckwerk einer Spinnmaschine sowie Spinnmaschine
DE102019115220A1 (de) * 2019-06-05 2020-12-10 Maschinenfabrik Rieter Ag Spinnereimaschine

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DE10019436A1 (de) 2000-04-19 2001-10-25 Zinser Textilmaschinen Gmbh Streckwerk für eine Spinnereimaschine
DE10218843A1 (de) * 2002-04-23 2003-11-06 Stahlecker Gmbh Wilhelm Vorrichtung an einer Spinnmaschine zum Verdichten eines Faserverbandes
CN1598095A (zh) * 2004-09-04 2005-03-23 无锡集聚纺织器械有限公司 一种积极传动的紧密纺吸聚圈传动装置
DE102009057344A1 (de) * 2009-12-07 2011-06-09 Rotorcraft Ag Streckwerk zum Verzug von Faserbändern und Spinnereimaschine mit wenigstens einem derartigen Streckwerk
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