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WO2022078875A1 - Dispositif de compactage pour machine de filature - Google Patents

Dispositif de compactage pour machine de filature Download PDF

Info

Publication number
WO2022078875A1
WO2022078875A1 PCT/EP2021/077758 EP2021077758W WO2022078875A1 WO 2022078875 A1 WO2022078875 A1 WO 2022078875A1 EP 2021077758 W EP2021077758 W EP 2021077758W WO 2022078875 A1 WO2022078875 A1 WO 2022078875A1
Authority
WO
WIPO (PCT)
Prior art keywords
suction
carrier
bearing
holder
suction pipe
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.)
Ceased
Application number
PCT/EP2021/077758
Other languages
German (de)
English (en)
Inventor
Peter Blankenhorn
Gernot Schaeffler
Nora Stopp
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
Priority to CN202180029765.6A priority Critical patent/CN115427618A/zh
Priority to EP21790822.7A priority patent/EP4038224A1/fr
Publication of WO2022078875A1 publication Critical patent/WO2022078875A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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 condensing device for a spinning machine with several spinning positions having drafting units, with a suction pipe and with a bearing of the suction pipe for the movable connection of the suction pipe to the spinning machine, the suction pipe being connected to a holder that can be suctioned, the holder on a along the Spinning machine running suction channel is arranged and the holder has a suction port for connection to the suction channel and the suction channel has an opening for receiving the suction port.
  • WO 2013/175282 A1 discloses a fastening means for detachably fastening and positioning a compression module on a drafting unit of a spinning machine.
  • the compression module comprises a carrier which is provided with at least one suction channel and which is connected to suction inserts of compression elements movably mounted on the carrier.
  • the attachment means consists of at least one clamping element, which has holding means for fixed and positioned attachment to the spinning machine and is provided with a receiving slot open on one side, which has a holding section with which a holding element attached to the carrier can form a positive clamp connection.
  • the fastening means or the clamping element is fastened in a defined and predetermined position on the spinning machine via the proposed holding means and is thus precisely matched to the position of the respective drafting system unit.
  • the carrier Via the receiving slot open on one side, the carrier can be transferred into a fixed position via a holding element fastened to the carrier, in which the holding element assumes a positive clamping connection with a holding section in the region of the receiving slot.
  • suction drums rest on the circumference of the driven output rollers of the drafting unit, the fiber material to be compressed being located between the suction drums and the output rollers and being clamped.
  • the suction drums are pressed onto the output roll with a leaf spring on a pressure arm. After releasing the pressure arm and transferring it to an upper position, the compression module is pivoted into a lower position by its own weight. In order to be able to start the spinning process again, the compression module must be raised manually and brought into operative connection with the leaf spring of the pressure arm. This requires additional operating steps. In addition, suction drums are complex to manufacture and are very heavy, which has to be pressed against the exit roller.
  • WO 2012/068693 A1 also discloses such a compression module with a suction drum.
  • the suction drum is attached to a holder and is rotatably mounted around a suction channel.
  • the axis of rotation of the holder and thus of the suction drum is defined by the suction channel.
  • Sealing at the entrance to the suction channel is also difficult. Pressure losses can result in unequal suction on the suction drums of the various compression devices on a spinning machine. In order to avoid this, a considerable effort must be made.
  • DE 10 2017 130 219 A1 discloses a pneumatic compression device which is arranged downstream of a drafting system. It has a suction pipe that can be sucked in, around which a sieve element is wrapped.
  • the suction tube is arranged on a holder fastened to the machine frame and is rotatably and/or displaceably mounted.
  • the suction pipe is connected to a first part of a suction pipe, which in turn is elastically connected to a second part of the suction pipe is connected.
  • the second part of the suction pipe can be fastened to a longitudinal component of the machine frame and leads to a suction source of the drafting system or the spinning machine.
  • the second part of the suction tube is stationary and does not have to be movable.
  • the connection or the suction pipe itself must be designed to be elastic.
  • the disadvantage here is that the mobility of the suction tube is dependent on the mobility of the suction tube. Depending on how the suction pipe is designed and how it is attached to the suction source in the machine, the suction pipe can move differently. The pressure forces of the suction pipe on the output top roller can therefore vary greatly.
  • the object of the present invention is to create a compacting device with a suction pipe that can also be retrofitted, with which the suction pipe can be securely fastened to the spinning machine and replaced, while still allowing for uniform pressing against a roller of a drafting system and suction at the suction pipe.
  • the compression device for a spinning machine with a plurality of spinning positions having drafting devices has a suction pipe and a suction pipe bearing for the movable connection of the suction pipe to the spinning machine.
  • the suction tube has a suction slot at which a drafted in the drafting fiber structure can be compressed by the suction pipe with the suction slit is pressed against an exit roller of the drafting system and the fiber structure is guided past the suction slit.
  • the fiber structure runs over the suction slot of the suction pipe, which is positioned at an angle to the running direction of the fiber structure, and is compressed in the process.
  • the suction tube is connected to a holder that can be sucked, and the holder is arranged on a carrier that runs along the spinning machine and is designed in particular as a suction channel.
  • the holder also has a suction connection for connection to the carrier, in particular the suction channel.
  • An opening for receiving the suction connection is arranged on the carrier, in particular the suction channel.
  • a bearing seat for fastening the bearing of the suction tube and a holder seat for fastening the suction connection of the holder are arranged on the carrier, in particular the suction channel.
  • the suction channel serves both as a support for the bearing of the suction tube and for the pneumatic connection of the holder and thus the suction tube. This ensures that the intake manifold can have an optimally designed pivot point for the necessary pivoting movements.
  • the vacuum supply is stable, uninterrupted and possible in the same way at all spinning positions.
  • the carrier can be suctioned, so that it serves as a suction channel.
  • the suction pipe is sucked independently of the pivoting movements of the holder and the suction pipe. In contrast to the prior art, there are no different suction cross-sections depending on the position of the suction pipe in this solution.
  • the pivot point of the suction tube or the holder together with the suction tube can be at a suitable point, independently of the positioning of the carrier or the suction channel in the spinning machine.
  • the carrier preferably the suction channel
  • the rotational movement of the suction tube can be optimally enabled.
  • the connection of the holder with its suction connection to the carrier or the suction channel takes place independently of the bearing and can therefore also take place at an optimal point.
  • the suction pipe and the holder are firmly connected to one another and the bearing is designed in such a way that it carries and movably supports both the suction pipe and the holder. This creates a very compact unit that is particularly easy to assemble and has low tolerances.
  • a first part of the bearing is connected to the suction tube and/or the holder and a second part of the bearing has a base body which is fixed in a stationary manner to the carrier or the suction channel.
  • the bearing which is designed in the manner of a swivel joint, can thus be optimally fastened to the carrier or the suction channel and, on the other hand, can accommodate the holder or the suction tube.
  • the stationary base body of the bearing is an integral part of the suction channel.
  • the bearing for the suction tube or the holder it is possible for the bearing for the suction tube or the holder to have a particularly favorable pivot point, which enables an optimal arrangement of the suction tube on the roller of the drafting system provided for this purpose.
  • the second part of the bearing ensures that the base body of the bearing formed therewith is fastened to the carrier or the suction channel in the manner of a bearing block.
  • the shape of this second part of the bearing can be adapted to the actual position of the carrier or the suction channel in the spinning machine and thus create a rotatable connection between the suction pipe or the holder and the carrier or the suction channel.
  • the carrier or the suction channel has at least one mounting rail for fastening the base body and/or the suction connection.
  • the carrier or the suction channel can be manufactured as a standard component.
  • the base body of the bearing and/or the suction connection for the holder or the suction tube can be fastened in the receiving rail.
  • the receiving rail extends along the carrier or the suction channel and can, for example, be processed accordingly in order to define points at which the bearing or the suction connection must be fastened in the axial direction of the carrier or the suction channel.
  • receiving rails there are several receiving rails in order to be able to attach the bearing and the suction connection independently of one another.
  • the fastening can also be designed in such a way that a first mounting rail for the suction connection and the bearing is arranged on the carrier or the suction channel and a second mounting rail is provided jointly, i.e. both for the bearing and the suction connection.
  • the receiving rail is a grooved strip. Both the bearing and the suction connection can be reliably fastened in the grooved strip.
  • grooved strip There are different shapes of grooved strip possible. For example, a hook-shaped or T-shaped or a dovetail-shaped groove strip can be provided, in which bearing and/or suction connection are fastened.
  • the carrier or the suction channel has a length which corresponds to the length of several spinning stations of the spinning machine, in particular the length of a punching area or a section of the spinning machine.
  • the carrier or the suction channel can supply the vacuum tion of several neighboring spinning positions.
  • such a carrier or suction channel can be arranged on each of the sides of the spinning machine.
  • the carrier or the suction channel also has the length of this section.
  • a length that corresponds to the length of a punched field can also be advantageous. The installation and maintenance of the carrier or the suction channel in the spinning machine can thus be carried out in a particularly advantageous manner.
  • the carrier or the suction channel is connected to a main air channel of the spinning machine.
  • the main air duct usually runs through the entire spinning machine. In order to ensure the vacuum supply to all spinning positions of the spinning machine, this exhaust air duct has a relatively large cross section.
  • the exhaust air duct usually runs centrally in the spinning machine.
  • the carrier or the suction channel which supplies a smaller number of spinning positions with negative pressure, can accordingly have a smaller cross section and thus be arranged closer to the individual spinning positions. It is therefore advantageous for the individual carriers or suction channels to be supplied with vacuum from the main air duct and for the individual carriers or suction channels of the spinning machine to enable the individual spinning positions to be supplied with vacuum.
  • the vacuum can be supplied through the carrier into the main air duct.
  • the carrier can also be designed as a suction air duct, to which the suction pipes are connected and which itself is in turn connected to the main air duct by a supply line.
  • the suction connection is made from an elastic material.
  • the suction port can, for example, as be formed a rubber sleeve. This makes it very easy to fasten the suction connection to the carrier or the suction channel, in particular to the grooved strip of the carrier or the suction channel.
  • the elasticity of the suction connection also ensures that the suction pipe and the holder of the suction pipe can be mounted in the bearing so that they can rotate well and without much resistance.
  • the intake manifold can thus be supplied with vacuum by the holder and the intake connection, regardless of the actual position of the intake manifold, without interrupting or reducing the vacuum.
  • the suction connection and/or at least part of the bearing have a quick-release fastener, in particular a clip, for attachment to the carrier or the suction channel.
  • the clip fastening can be formed by means of a fork-shaped opening and a pin which is surrounded by the fork-shaped opening.
  • the quick-release fastener allows the suction connection or at least a part of the bearing or the entire bearing and thus the suction tube and the holder to be quickly and easily assembled and disassembled from the carrier or the suction channel. This makes it very easy to replace the suction pipe and the holder. It is particularly preferred if the quick-release fastener interacts with the grooved strip of the carrier or the suction channel.
  • At least one axial stop for the suction connection and/or for at least part of the bearing is arranged on the carrier or the suction channel.
  • the exact position of the suction tube on the carrier or the suction channel is defined by the axial stop. This is important in order to achieve good compression of the sliver, since the stop ensures that the suction pipe is arranged at the spinning station in such a way that a suction slot of the suction pipe is located exactly at the predetermined point at which the fiber strand in the drafting system meets the suction pipe contacted.
  • a spring for moving the suction tube relative to the carrier or suction channel is arranged between the suction tube and the carrier or suction channel or between the suction tube and the base body of the bearing.
  • the spring presses the suction tube against an exit roller of the drafting system of the spinning position, thus ensuring that the fiber structure is properly compressed.
  • the spring can preferably be supported on the base body of the bearing or on the carrier or the suction channel. If the intake manifold and its holder are designed as a structural unit, the spring device can also be supported on the holder and the base body or on the holder and the bearing.
  • the bearing is a floating bearing that can be rotated and/or tilted.
  • the floating bearing ensures that the length of the suction pipe can be pressed against the circumference of the drafting system's exit roller.
  • the axis of the suction pipe and the axis of the exit roller can thus run parallel to one another.
  • the adjustment of the bearing in relation to the output roller of the drafting system can be done very easily because the correct position of the suction pipe adjusts itself.
  • the movable bearing is formed by an elongated hole and an axis guided therein.
  • the elongated hole makes it possible for the axis guided in it to assume a position which independently enables the suction pipe to be aligned parallel to the axis of the output top roller.
  • a suction tube for a single spinning station or at least one suction tube, preferably two suction tubes, for two adjacent spinning stations are held on the holder. It is particularly advantageous if a holder is equipped with two suction tubes.
  • the two intake manifolds can be stored using the holder. After the drafting system usually has two adjacent spinning positions, each with a drafted server band, it makes sense here that the holder and the two suction tubes are provided for the two fiber bundles of one drafting unit.
  • a single holder for two adjacent suction tubes of adjacent spinning positions is arranged on the bearing.
  • the holder has the moving part of the bearing and also carries the two suction tubes for the adjacent spinning positions. In this way, a very cost-effective compression device can be created for two adjacent spinning stations. In addition, the assembly of the compression devices on the spinning machine is also possible quickly.
  • the carrier or suction channel runs essentially parallel to an exit cylinder of a drafting system of the spinning positions.
  • the parallel contact of the carrier or suction channel on the output cylinder of the drafting system ensures that optimal suction and thus compression of the fiber structure emerging from the drafting system can take place.
  • a compacting device is used as intended on a spinning machine which has a large number of drafting units each with upper and lower rollers and a loading arm on which the upper rollers of the drafting unit are arranged.
  • a pair of exit rollers is formed by an exit top roller and an exit cylinder.
  • a longitudinal component, in particular a punch bank, runs essentially parallel to the output cylinder.
  • a pneumatic compression device for compressing the drafted fiber structure is arranged downstream of the output roller pair of the drafting system in the running direction of a fiber structure.
  • the pneumatic compression device has a suction pipe with a suction slit that can be sucked in, with the suction pipe being wrapped by a sieve element and being arranged directly or indirectly by means of the holder on the carrier or the suction channel.
  • the necessary units are arranged on a carrier or suction channel, which runs over the entire punching field or an entire section and left and right is picked up at the punches or at section frames.
  • the carrier or the suction channel also serves to supply them with suction air.
  • the support formed in the suction channel is connected to the main air channel once or several times.
  • the suction channel is closed on the left and right with plugs or covers. Plug and receptacle can be formed either as one piece or as separate pieces.
  • the carrier or suction channel preferably has a special profile.
  • the compression device is clipped onto the carrier or suction channel via the base body with the pivot axis.
  • the elastic suction connection of the compression device is accommodated, for example, in a type of T-slot profile with a slight pre-stress in such a way that a leak-free air connection is ensured.
  • the compression device can thus be easily removed and reinstalled during operation.
  • the base body which accommodates the pivot axis, is fixed axially with a recess in the front part of the T-slot.
  • the suction tube can be provided with a wear-resistant part on the contact surface with the exit roller of the drafting system, which part is clipped on or glued on, for example.
  • a ceramic part is preferably used for this purpose.
  • the part has shelves with which the sieve strap is guided laterally.
  • the suction tube is closed with covers that can also guide a sieve strap tensioning spring on the side.
  • the compression device is aligned with the carrier or the suction channel via the clip mount, which in turn is positioned very precisely in relation to the outlet cylinder.
  • the screen strap can slide around a sliding shoe with struts and be slightly tensioned by it.
  • One sliding shoe is provided for each sieve apron.
  • the spring struts are supported on the intake manifold.
  • Figure 1 is a schematic representation of a spinning position of a ring spinning machine
  • FIG. 2 shows a side view of a compacting device in the area of the pair of output rollers with a carrier designed as a suction channel
  • FIG. 3 shows a front view of two adjacent spinning positions in the area of the compression device
  • FIG. 4 shows a side view of a compacting device in the area of the pair of output rollers with a supply line passing through the carrier
  • FIG. 5 shows a plan view of several compression devices according to FIG. 4,
  • FIG. 6a shows a plan view of several compression devices according to FIG. 2 and FIG. 6b shows a further top view of several compression devices according to FIG.
  • FIG. 1 shows a schematic representation of a section through a spinning machine, in particular a ring spinning machine with a compression device 20.
  • Individual components of the spinning machine are shown as an example, namely a drafting system 2 and a spinning device 10.
  • the drafting system 2 consists of three pairs of rollers, an input roller pair 3, a pair of apron rollers 4 and a pair of output rollers 5.
  • the pair of output rollers 5 is formed by an output upper roller 6 and an output cylinder 7.
  • the two rollers of each pair of rollers 3, 4 and 5 are pressed against one another and form a nip point at their point of contact, with the nip point K1 being formed by the pair of output rollers 5 between the output top roller 6 and the output cylinder 7 is formed.
  • a clamping point K2 is formed by a suction tube 17 (FIG. 2) which can be sucked out and which presses against the top roller 6.
  • the fiber structure 1 entering the drafting system 2 is clamped between the rollers of the pairs of rollers 3, 4 and 5 by the respective clamping points and drawn due to the different speeds of the pairs of rollers 3, 4 and 5.
  • the fiber structure 1 is transported through the drafting system 2 at the same time.
  • the drafted fiber structure 8 reaches the compression device 20, in which it is compressed.
  • the fiber structure 8 then reaches the thread guide 9 and is carried on to the spinning device 10.
  • the spinning device 10 consists essentially of a ring rail 14, which carries a spinning ring 12, and a spindle rail 15, on which a coil 13 is attached.
  • the fiber structure 8 reaches the spool 13 via a rotor 11.
  • the spool 13 is set in rotation.
  • the consequence of this is that the runner 11 is also set in rotation by the fiber structure 8 on the ring 12 .
  • the rotation of the bobbin 13 and rotor 11 imparts a twist to the fiber strand 8 and thereby forms a yarn which is wound onto the bobbin 13 by moving the ring rail 14 or the spindle rail 15 up and down, for example.
  • the upper rollers can be lifted from the lower rollers.
  • a loading arm 19, to which the upper rollers are fastened in a known manner, is moved about a pivot point D in the direction of the arrow P.
  • FIG. 2 shows a side view of a compression device 20 in the region of the pair of output rollers 5.
  • the upper roller 6 is pressed onto the output cylinder 7 and forms a clamping point K1 with it.
  • the top roller 6 is attached to the loading arm 19 in a known manner by means of a loading unit 33 .
  • This output top roller 6 is pressed against the output cylinder 7 by a loading spring 22 when the loading arm 19 is closed.
  • the loading unit 33 is attached to the loading arm 19 by means of an indicated attachment element, for example a clamping screw, which can be moved and fixed in a slot.
  • the fastening element allows the loading unit 33 to be displaced within the elongated hole.
  • the position of the suction pipe 17 and the position of the clamping point K2 in relation to the output top roller 6 can be changed will. In this way, different fiber materials of the fiber structure 1 can be addressed and an optimal setting can be found for this. In addition, it is ensured that after lifting the loading arm 19 to open the drafting system 2 and closing the loading arm 19 again for spinning, the compression device 20 assumes the original position again. The setting of the intake manifold 17 in relation to the output cylinder 7 is not changed.
  • a suction slot 32 is arranged on the suction pipe 17 between the clamping points K1 and K2. At this suction slot 32 there is a fiber bundling zone 16 in which the fibers of the fiber structure 8 are bundled or compressed.
  • the nip point K2 is created between the top roller 6 and a suction pipe 17, the suction pipe 17 being pressed against the output top roller 6 by means of a spring 21. So that the fibers of the fiber structure 8 are not sucked into the suction slot 32 where they are bundled and compressed, the suction slot 32 is surrounded by a screen element 18 .
  • the sieve element 18 wraps around the suction pipe 17. It can be tensioned by means of a tensioning device, for example with a sieve strap tensioning spring, which is arranged between the suction pipe 17 and the sieve strap 18, or, as shown here, simply placed loosely around the suction pipe 17.
  • the suction tube 17 is connected to a suction tube 24 . Air is sucked out of the suction pipe 17 through the suction pipe 24 .
  • Suction tube 17 and suction tube 24 can be designed in one piece in one structural unit, or suction tube 24 can be flexible, for example as a flexible hose.
  • Suction pipe 17 and suction pipe 24 are attached to a holder 23 of suction pipe 17 in this exemplary embodiment.
  • Suction pipe 17 and suction pipe 24 are preferably detachably connected to one another so that any dirt can be easily cleaned by Suction pipe 17 is removed from the suction pipe 24 and thus the interiors of the suction pipe 17 and the suction pipe 24 are easily accessible for cleaning.
  • the suction pipe 17 is preferably pushed into an opening of the suction pipe 24 or the holder 23 and fixed there, for example by means of a screw.
  • the holder 23 and thus the suction pipe 17 are arranged on a suction channel 40, which acts as a carrier 40 'For the compression device 20 is used.
  • the holder 23 is connected to the spring 21 .
  • the spring 21 here a torsion spring, presses the suction tube 17 against the output top roller 6 with a predetermined force.
  • the suction tube 17 thus rotates about a pivot point DS at the fastening of the spring 21 .
  • the suction tube 17 is rotatably mounted on the suction channel 40 by the holder 23 .
  • a first part of a bearing 30 for rotating and tilting the suction pipe 17 is arranged on the holder 23 of the compression device 20 .
  • this first part is an axle 25 .
  • the axle 25 also serves to accommodate the torsion spring 21 .
  • Each end of the axle 25 is inserted in a slot 26 of a base body 27.
  • the slot 26 forms a second part of the bearing 30 of the holder 23 or of the suction pipe 17, which interacts with the first part of the bearing 30.
  • the suction tube 17 is designed to be movable relative to the base body 27 by means of the bearing 30 .
  • the torsion spring 21 By arranging the torsion spring 21 between the suction tube 17 or holder 23 of the suction tube 17 and the base body 27, a movement of the suction tube 17 relative to the base body 27 is possible.
  • the torsion spring 21 is supported with a first leg on a support element 28 of the holder 23 and with a second leg on a further support element 29 of the base body 27 .
  • the holder 23 and thus the intake manifold 17 according to the present representation moved upwards. The movement continues until either the suction tube 17 strikes the second clamping point K2 of the output top roller 6 or a stop 31 of the holder 23 comes into effect by striking the base body 27 .
  • the bearing of the holder 23 forms a rotatable and/or tiltable floating bearing.
  • the suction tube 17 can rest evenly against the output top roller 6 both by rotating and by tilting to the longitudinal direction of the suction tube 17, which runs essentially parallel to the axis of the output top roller 6. This causes the suction pipe 17 and the screen element 18 to be pressed evenly against the output top roller 6, as a result of which the fiber structure 8 can be compressed evenly and with high quality.
  • the base body 27 is arranged on the suction channel 40 or the carrier 40'.
  • the suction channel 40 or carrier 40' is fixed to the spinning machine and runs parallel to the outlet cylinder 7. It extends, for example, between two punches of the spinning machine and in this way accommodates several, for example four or eight, compression devices 20 for eight spinning devices 10 arranged next to one another .
  • the suction channel 40 or carrier 40' can be a shaped, for example extruded aluminum profile or a rolled profile sheet.
  • a pin-shaped mounting rail 43 is arranged on the suction channel 40 or carrier 40 ′, which forms a bearing mount 54 for fastening the bearing 30 of the suction pipe 17 .
  • the mounting rail 43 is accessible for a fork-shaped mount 44 of the base body 27 .
  • the fork-shaped receptacle 44 can be slid over the pin of the receptacle rail 43 and is locked there by a clamp.
  • the recording 44 can be spread apart slightly for this purpose. In conjunction with a support surface 45 of the base body 27, this causes the base body 27 to be fastened to the suction channel 40 or carrier 40' in a stable and precisely positioned manner.
  • the base body 27 is also possible for the base body 27 to be removed from the suction channel 40 or carrier 40'. This enables a quick exchange of the base body 27 with the holder 23, suction pipe 24 and suction pipe 17 arranged thereon.
  • the rapid, preferably tool-free, removal of this compression device 20 from the spinning station is also advantageous for cleaning.
  • the suction pipe 24 or the holder 23 is connected with an elastic connection to the suction channel 40 or carrier 40', preferably separably, in a holder receptacle 55 for fastening the suction connection of the holder 23.
  • the connection between the suction tube 24 or holder 23 and the suction channel 40 or carrier 40' is designed with an elastic sleeve 46.
  • the elastic sleeve 46 is connected to the suction channel 40 or carrier 40' with a grooved strip, which has two receiving rails 47, in the region of an opening 41 of the suction channel 40 or carrier 40'.
  • the receiving rails 47 run along the suction channel 40 or carrier 40 ′ and form hooks which grip the elastic sleeve 46 .
  • the elastic sleeve 46 can be inserted very easily into the receiving rails 47 by means of a corresponding deformation and can be removed from them again if necessary. This enables very quick assembly and disassembly. Nevertheless, an airtight connection is created between the carrier 40' acting as the suction channel 40 and the suction pipe 24 or the suction pipe 17.
  • the suction channel 40 or carrier 40' runs along a number of spinning stations, preferably along a stamping field or a section of the spinning machine.
  • the suction channel 40 or carrier 40' is above at least one point a supply line 48 is connected to a main air duct 49 of the spinning machine.
  • the suction channel 40 or carrier 40' can be shaped in such a way that it also encompasses the base body 27.
  • a separate component in the form of the base body 27 is therefore not required.
  • the holder 23 can be fastened directly via the axis 25 to the suction channel 40 or carrier 40'.
  • the suction channel 40 or carrier 40 ′ has a projection, which includes the slot 26 , instead of the receiving rail 43 .
  • the axle 25 is thus inserted into the elongated hole 26 of the suction channel 40 or carrier 40' and thus fastens the holder 23 directly to the suction channel 40 or carrier 40'.
  • FIG. 3 shows a front view of two adjacent spinning stations in the area of the compression device 20.
  • the top rollers 6 of two parallel drafting units 2 are fastened to the loading arm 19.
  • the upper rollers 6 are arranged in the manner of tandem rollers by means of an axle on the loading arm 19.
  • Each of the top rollers 6 projects laterally beyond the loading arm 19 .
  • two compression devices 20 of adjacent drafting units 2 are preferably also assigned to a loading arm 19 .
  • the two compression devices 20 can be designed as a structural unit. However, they can also be designed individually and thus assigned to each drafting system 2 individually.
  • the two intake manifolds 17 are also shown here as a unit. They have a length which extends beyond the two output top rollers 6 .
  • the holder 23 is arranged in a central region of the suction pipes 17 . There is thus a holder 23 for two spinning positions.
  • Two sieve aprons 18 are provided on the suction tubes 17 in the area of the output top rollers 6 .
  • the air-permeable fabric made of In order to prevent wear of the suction pipe 17 by the rotating sieve strap 18, a wear protection 50 with lateral rims for guiding the sieve strap 18 is arranged between the sieve strap 18 and the suction pipe 17.
  • the wear protection 50 can be made of ceramic, for example, and can be held on the filter strap 18 by appropriate shaping.
  • the receiving rails 43 and 47 are indicated on the suction channel 40 or carrier 40'.
  • the sleeve 46 of the holder 23 is inserted into the two receiving rails 47 and held therein.
  • the base body 27 is located between the upper mounting rail 43 and the middle mounting rail 47.
  • the middle mounting rail 47 has an axial stop 51.
  • the axial stop 51 is part of a recess 52 in which the receiving rail 47 is notched. Such a recess 52 is arranged on both sides of the holder 23 . Two axial stops 51 are thus formed, between which the base body 27 can be positioned exactly.
  • the base body 27 has two stop cams 53 which correspond to the axial stop 51 of the mounting rail 47 .
  • the base body 27 can be positioned in the circumferential direction of the suction channel 40 or carrier 40' by the mounting rail 43 and the mounting rail 47 and fixed in the axial direction by the two stops 51. This makes it very easy to insert the base body 27 and thus the compression device 20 at the intended location. It is also possible to replace the compression device 20 quickly and reliably with the clips described in FIG.
  • FIG. 4 shows a side view of a compression device 20 in the region of the pair of exit rollers 5 with a supply line 48 for the suction air passing through the carrier 40'.
  • the carrier ger 40 ' no suction channel through which the vacuum is supplied to the suction tubes 17.
  • the carrier 40' serves mainly to fasten the bearing mount 54 and the holder mount 55.
  • the supply line 48 for supplying the compression device 20 with vacuum runs through the carrier 40' and is connected to the main air duct 49 in the opening 41.
  • a retrofittable compaction device 20 with a suction pipe 17 is also possible with this embodiment, with which the suction pipe 17 can be securely fastened to the spinning machine and exchanged, and nevertheless uniform pressing on the output top roller 6 of the drafting system and suction at the suction pipe 17 is made possible. Retrofitting is made even easier by the fact that the carrier 40' does not have to be sealed.
  • FIG. 5 shows a top view of several compression devices 20 where the suction connection according to FIG. 4 has been carried out.
  • the respective supply lines 48 open directly into the main air duct 49, which runs along the spinning machine.
  • the plurality of compacting devices 20 are fastened to the receiving rails 43 and 47 of the carrier 40'.
  • the carrier 40' is arranged between two punches 56 of the spinning machine and fastened thereto. A stable and defined fastening in the spinning machine is thus also achieved for the compression devices 20 .
  • FIG. 6a and 6b each show a top view of several compression devices 20 with suction air connections according to FIG. According to FIG. 6a, the suction channel 40 is supplied with a vacuum using a central supply line 48.
  • FIG. 6a The present invention is not limited to the illustrated and described embodiments. Modifications within the scope of the patent claims are just as possible as any combination of the features described, even if they are shown and described in different parts of the description or the claims or in different exemplary embodiments, provided that there is no contradiction with the teaching of the independent claims .

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

Abstract

L'invention concerne un dispositif (20) de compactage destiné à une machine de filature dotée d'une pluralité de postes de filature, qui comportent des systèmes (2) d'étirage, le dispositif de compactage comportant un tube (17) d'aspiration et un appui (30) du tube (17) d'aspiration servant à lier de façon mobile le tube (17) d'aspiration à la machine de filature. Le tube (17) d'aspiration est lié à un moyen (23) de retenue, qui peut être soumis à une aspiration, et le moyen (23) de retenue est disposé sur un support (40'), qui s'étend le long de la machine de filature et se présente plus particulièrement sous la forme d'un canal (40) d'aspiration. Le moyen (23) de retenue est doté d'un raccordement d'aspiration servant à se raccorder au support (40'), et le support (40') présente une ouverture (41) servant à recevoir le raccordement d'aspiration. Un moyen (54) de maintien d'appui servant à fixer l'appui (30) du tube (17) d'aspiration et un moyen (55) de maintien de moyen de retenue servant à fixer le raccordement d'aspiration du moyen (23) de retenue sont disposés sur le support (40').
PCT/EP2021/077758 2020-10-13 2021-10-07 Dispositif de compactage pour machine de filature Ceased WO2022078875A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202180029765.6A CN115427618A (zh) 2020-10-13 2021-10-07 一种纺纱机的压紧装置
EP21790822.7A EP4038224A1 (fr) 2020-10-13 2021-10-07 Dispositif de compactage pour machine de filature

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020126876.9 2020-10-13
DE102020126876.9A DE102020126876A1 (de) 2020-10-13 2020-10-13 Verdichtungsvorrichtung für eine Spinnmaschine

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WO2022078875A1 true WO2022078875A1 (fr) 2022-04-21

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PCT/EP2021/077758 Ceased WO2022078875A1 (fr) 2020-10-13 2021-10-07 Dispositif de compactage pour machine de filature

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CN (1) CN115427618A (fr)
DE (1) DE102020126876A1 (fr)
WO (1) WO2022078875A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012068693A1 (fr) 2010-11-26 2012-05-31 Maschinenfabrik Rieter Ag Métier à filer comprenant un dispositif de compression
WO2013175282A1 (fr) 2012-05-21 2013-11-28 Maschinenfabrik Rieter Ag Moyens de fixation d'un module de serrage sur un métier à filer
CN204550875U (zh) * 2015-04-16 2015-08-12 江南大学 一种后端互通式吸风插件
DE102017130219A1 (de) 2017-12-15 2019-06-19 Maschinenfabrik Rieter Ag Spinnereimaschine und Verdichtungsvorrichtung
CN107119357B (zh) * 2016-02-25 2019-08-30 常州市恒基纺织机械有限公司 一种无源式集聚纺纱装置及其组装方法
WO2020245270A1 (fr) * 2019-06-05 2020-12-10 Maschinenfabrik Rieter Ag Dispositif de compression conçu pour un banc d'étirage d'un métier à filer et métier à filer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3820951B2 (ja) * 2001-10-04 2006-09-13 株式会社豊田自動織機 紡機における繊維束集束装置
CH705310A1 (de) 2011-07-25 2013-01-31 Rieter Ag Maschf Absaugvorrichtung für die Verdichtungsluft von zwei auswechselbaren Saugeinheiten an einem Zwillingsstreckwerk einer Spinnmaschine.
CH706258A2 (de) 2012-03-21 2013-09-30 Rieter Ag Maschf Tragelement für eine Verdichtungsvorrichtung.
CN202786571U (zh) * 2012-08-03 2013-03-13 江南大学 一种全程气流集聚控制牵伸装置
DE102017130215A1 (de) * 2017-12-15 2019-06-19 Maschinenfabrik Rieter Ag Streckwerk für eine Spinnereimaschine

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012068693A1 (fr) 2010-11-26 2012-05-31 Maschinenfabrik Rieter Ag Métier à filer comprenant un dispositif de compression
WO2013175282A1 (fr) 2012-05-21 2013-11-28 Maschinenfabrik Rieter Ag Moyens de fixation d'un module de serrage sur un métier à filer
CN204550875U (zh) * 2015-04-16 2015-08-12 江南大学 一种后端互通式吸风插件
CN107119357B (zh) * 2016-02-25 2019-08-30 常州市恒基纺织机械有限公司 一种无源式集聚纺纱装置及其组装方法
DE102017130219A1 (de) 2017-12-15 2019-06-19 Maschinenfabrik Rieter Ag Spinnereimaschine und Verdichtungsvorrichtung
WO2020245270A1 (fr) * 2019-06-05 2020-12-10 Maschinenfabrik Rieter Ag Dispositif de compression conçu pour un banc d'étirage d'un métier à filer et métier à filer

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EP4038224A1 (fr) 2022-08-10
DE102020126876A1 (de) 2022-04-14
CN115427618A (zh) 2022-12-02

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