EP0291711A1 - Dispositif d'alimentation et de libération d'un métier à filer à bout libre - Google Patents

Dispositif d'alimentation et de libération d'un métier à filer à bout libre Download PDF

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Publication number
EP0291711A1
EP0291711A1 EP88106283A EP88106283A EP0291711A1 EP 0291711 A1 EP0291711 A1 EP 0291711A1 EP 88106283 A EP88106283 A EP 88106283A EP 88106283 A EP88106283 A EP 88106283A EP 0291711 A1 EP0291711 A1 EP 0291711A1
Authority
EP
European Patent Office
Prior art keywords
housing
opening
roller
feeding
feed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88106283A
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German (de)
English (en)
Other versions
EP0291711B1 (fr
Inventor
Heinz-Georg Wassenhoven
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.)
Oerlikon Textile GmbH and Co KG
Original Assignee
W Schlafhorst AG and Co
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 W Schlafhorst AG and Co filed Critical W Schlafhorst AG and Co
Publication of EP0291711A1 publication Critical patent/EP0291711A1/fr
Application granted granted Critical
Publication of EP0291711B1 publication Critical patent/EP0291711B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H4/00—Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques
    • D01H4/30—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls
    • D01H4/36—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls with means for taking away impurities

Definitions

  • the invention relates to a feeding and opening device in a spinning unit of an open-end spinning machine, consisting of a housing with an opening roller rotatably mounted in the housing for dissolving a sliver into individual fibers, with a feed opening arranged on the circumference of the housing for feeding the sliver by means of a feed roller over a feed trough, after the feed opening, viewed in the direction of rotation of the opening roller, an opening for separating the dirt and then an opening for discharging the fibers into the fiber guide channel of the spinning unit, which opens into the spinning element.
  • This fiber sliver consists of fibers that have already been largely parallelized, which are combed out in front of the opening roller and then fed through the air flow in the housing in which the opening roller rotates through the fiber guide channel to the spinning element, for example a spinning rotor.
  • the following fibers get caught on the stuck fibers and form a flake over time due to the increasing accumulation of further fibers, which greatly disrupts the fiber flight. If such a flake breaks loose and, for example, gets into a spinning rotor, yarn defects or a thread breakage occur.
  • the present invention has for its object to design a housing so that the setting of fibers in joints or corners is significantly reduced or avoided, thereby ensuring a trouble-free spinning process.
  • the feed trough being a component of the housing and the one-piece design at least from the feed opening for feeding the sliver to the opening for discharging the fibers in If the stationary fiber guide channel is sufficient, the joints between a movable feed trough and the housing of the opening roller and the joints between the individual parts, from which the housing is generally composed, are advantageously eliminated. Fibers can no longer get stuck in joints between individual components or in housing edges and corners as well as between parts that move against each other. An accumulation of fibers, the formation of flakes, is avoided and the resulting yarn defects and thread breaks no longer occur.
  • the entire housing and the feed roller are arranged to be movable relative to one another.
  • the housing in the spinning unit is rotatably mounted about the axis of the opening roller.
  • the spring can be a tension-compression spring attached to the periphery of the housing, which supports the housing with respect to the spinning unit, or a torsion spring which is wound around the axis of the opening roller as the axis of rotation of the housing and is fastened on the one hand to the housing and on the other hand to the spinning unit .
  • the housing is fixed in the spinning unit and the feed roller is movable relative to the feed trough of the housing.
  • the axis of the opening roller or the bearings of the axis are spring-loaded.
  • the opening for separating the dirt is delimited by wall-like parts of the housing.
  • this prevents the creation of additional joints in the parts attached to the housing, in which an isolated fiber or dirt to be separated can become lodged.
  • the opening for separating the dirt should at most have the width of the clothing on the opening roller.
  • the structural design of the opening ensures that the fiber stream is guided in the housing without interference and that no fibers are thrown out of the opening by the opening roller.
  • the axis of the opening roller is mounted in the housing.
  • Housing and opening roller thus advantageously form a structural unit that can be easily installed and removed together.
  • Such a solution is particularly suitable in the embodiment in which the housing is rotatable about the axis of the opening roller, because here at least one bearing is required for the housing to be supported on the axis of the opening roller.
  • the claimed form of the axle support offers the possibility of easy inspection and maintenance of the bearings.
  • an opening roller 2 rotates in the housing 1 and is equipped with a clothing 3, here in the form of a sawtooth.
  • the clothing can be worked out from the full roller or shrunk onto it.
  • the opening roller 2 is fed the sliver 4 to be opened via a compressor 5 from a feeding roller 6 through the feeding opening 7 in the housing 1.
  • the feed roller 6 is operatively connected to a feed trough 8. If the state of the sliver 4 changes, for example its strength, the feed trough 8 deviates downwards.
  • the entire housing 1 rotates about the axis 9 of the opening roller 2 and reaches, for example, the position shown in broken lines in FIG. So that the housing 1 can turn back into its original position, it is supported on a spring 10, which in turn is supported on a wall of the spinning unit 11 indicated here.
  • the illustrated support of the housing 1 on the spring 10 is to be understood to explain the function of the housing according to the invention.
  • the spring can also be attached to another location on the housing or it is designed as a spring which is subjected to torsion and which, lying concentrically about the axis 9, supports the housing 1 with respect to the spinning excavator gate 11.
  • the opening roller 2 combs out individual fibers 13 with its clothing 3 from the fiber beard 12 of the fiber sliver projecting beyond the feed trough 8.
  • the combed fibers 13 are entrained by the air flow prevailing in the housing 1.
  • This air flow can be, for example, the negative pressure which is present on a spinning rotor in the spinning unit. While the light fibers 13 follow the air flow, the dirt 14 is discharged from the opening 15 in the housing 1 due to the centrifugal force acting on it.
  • the dirt 14 falls into a device, not shown here and not described in detail, for collecting or transporting it away.
  • the opening 15 for separating the dirt 14 is delimited by wall-like parts of the housing 1, so that the dirt 14 to be separated out does not get back into the housing 1 by uncontrolled air currents.
  • the opening 15 is delimited on the opposite side by a wall 17.
  • the walls 16 and 17 are inclined at such an angle to the circumference of the opening roller 2 that the dirt 14 is optimally ejected due to the centrifugal forces acting on it, without being thrown back by impact on the walls 16 and 17.
  • the freed from the dirt 14, combed and separated fibers 13 are discharged through an air flow, for example the negative pressure on a spinning rotor, through an opening 18 for discharging the fibers 13 in the housing 1 into the fiber guide channel 19 and thus arrive at the spinning element, not shown here.
  • the fiber guide channel 19 is not firmly connected to the housing 1. Its opening to the housing is so large that it covers the opening 18 in the housing 1 over its entire range of rotation.
  • FIG. 2 shows a top view of the feed and dissolving device according to FIG. 1 for better clarity, the feed roller, the compressor, the fiber sliver and the fiber guide channel are omitted.
  • the housing 1 is rotatably mounted in the indicated spinning unit 11 and is held here by a locking ring 20 which engages in a groove 21 of the housing 1.
  • the shaft 9 of the opening roller 2 is mounted in the housing 1. The drive engaging the shaft 9 is not shown here.
  • the opening roller 2 with its clothing 3 can be seen in the partially cut-open housing 1.
  • the clothing 3 is delimited on the right and left side of the opening roller 2 by two ribs 22.
  • the side flanges 22 are intended to prevent fibers from breaking out and getting stuck between opening roller 2 and housing 1.
  • the opening 15 for separating the dirt 14 is somewhat narrower than the clothing 3, so that no fibers 13 can be thrown out of the opening 15 laterally by the opening roller 2.
  • the feed opening 7 with the feed trough 8 located underneath it can be seen in the housing 1.
  • the housing 1 On the front side, the housing 1 is closed by a plate 23 which, as is not shown here, is fastened to the spinning unit in a manner that is easily removable and closes the housing 1 tightly but easily accessible.
  • the circumferential joint 24 between housing 1 and plate 23 is the only joint remaining in the housing, so that the possibility of fibers or dirt getting stuck is reduced to a minimum.
  • the peripheral flanges 22 also largely prevent fibers or dirt from reaching this joint 24.
  • FIG. 3 shows another embodiment of the feeding and opening device according to the invention. Components that correspond to the previous illustrations are provided with the same reference symbols.
  • the housing is not rotatably inserted in the spinning unit.
  • the fiber guide channel 19 can also be an integral part of the housing 1.
  • the feed roller 6 deflects upwards here.
  • the axis 25 of the feed roller 6 moves on an arc 26 which is concentric with the center of the axis 9 of the opening roller 2.
  • Springs, not shown here load the bearings of the axle 25 or the axle itself. As a result, the feed roller 6 can always follow the thickness of the sliver 4, and thus an optimal contact pressure is always exerted on the sliver.
  • An embodiment of the housing 1 is also conceivable in which there is a further opening in the wall on the circumference of the housing in front of the wall 16 which delimits the opening 15 for separating the dirt 14. Both openings one behind the other are used for dirt separation, the coarser one being seen from the former, viewed in the direction of rotation of the opening roller, and the finer, dust-like dirt from the one behind it.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP88106283A 1987-05-19 1988-04-20 Dispositif d'alimentation et de libération d'un métier à filer à bout libre Expired - Lifetime EP0291711B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3716727A DE3716727C2 (de) 1987-05-19 1987-05-19 Zuführ- und Auflöseeinrichtung einer Offen-End-Spinnmaschine
DE3716727 1987-05-19

Publications (2)

Publication Number Publication Date
EP0291711A1 true EP0291711A1 (fr) 1988-11-23
EP0291711B1 EP0291711B1 (fr) 1991-07-03

Family

ID=6327862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88106283A Expired - Lifetime EP0291711B1 (fr) 1987-05-19 1988-04-20 Dispositif d'alimentation et de libération d'un métier à filer à bout libre

Country Status (4)

Country Link
US (1) US4825637A (fr)
EP (1) EP0291711B1 (fr)
JP (1) JP2550150B2 (fr)
DE (2) DE3716727C2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5185994A (en) * 1991-01-18 1993-02-16 Hans Stahlecker Feeding and opening device for an open-end spinning arrangement

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3823984A1 (de) * 1988-07-15 1990-01-18 Schlafhorst & Co W Verfahren zur aufloesung eines faserbandes
DE3910292C2 (de) * 1989-03-30 2000-04-13 Schlafhorst & Co W Zuführ- und Auflöseeinrichtung in einer Spinnvorrichtung einer OE-Spinnmaschine
DE19504607A1 (de) * 1995-02-11 1996-08-14 Schlafhorst & Co W Faserbandzuführvorrichtung für OE-Spinnmaschinen
DE102018007069A1 (de) * 2018-09-07 2020-03-12 Saurer Spinning Solutions Gmbh & Co. Kg Auflösewalzengehäuse für eine Auflösevorrichtung einer Offenend-Rotorspinnvorrichtung

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT264338B (de) * 1966-03-19 1968-08-26 Vyzk Ustav Bavlnarsky Vorrichtung zum Vereinzeln und Zuführen von Textilfasern
DE1914115C3 (de) * 1969-03-20 1980-01-17 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Offen-End-Spinnvorrichtung mit Schmutzausscheidung
DE2037298C3 (de) * 1970-07-28 1979-01-04 Schubert & Salzer Maschinenfabrik Ag, 8070 Ingolstadt Vorrichtung zum Einspeisen eines Faserbandes
GB1373099A (en) * 1971-12-01 1974-11-06 Platt International Ltd Textile sliver feeding devices for spinning machines
US3800520A (en) * 1973-06-04 1974-04-02 Rieter Ag Maschf Fiber opening roll of an open end spinning device
CS195385B1 (en) * 1974-06-18 1980-01-31 Milos Vecera Device for supplying fibre strands such as slivers to fibre separating mechanisms
US4024699A (en) * 1974-10-11 1977-05-24 Schubert & Salzer Maschinenfabrik Aktiengesellschaft Sliver resolving apparatus for open-end spinning machines
DE2721386C2 (de) * 1977-05-12 1985-01-10 Fritz 7347 Bad Überkingen Stahlecker Offenend-Spinnaggregat
DE3221385A1 (de) * 1982-06-05 1983-12-22 W. Schlafhorst & Co, 4050 Mönchengladbach Verfahren und vorrichtung zum herstellen eines gereinigten faserstromes
DE3342472A1 (de) * 1983-11-24 1985-06-05 Fritz 7347 Bad Überkingen Stahlecker Verfahren zum anspinnen eines garnes an einem spinnaggregat einer oe-friktionsspinnmaschine und oe-friktionsspinnmaschine
DE3425345A1 (de) * 1984-07-10 1986-01-30 Trützschler GmbH & Co KG, 4050 Mönchengladbach Verfahren und vorrichtung zum erzeugen einer gleichmaessigen, kontinuierlichen fasermenge

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Keine Entgegenhaltungen *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5185994A (en) * 1991-01-18 1993-02-16 Hans Stahlecker Feeding and opening device for an open-end spinning arrangement
DE4101315C2 (de) * 1991-01-18 1999-04-29 Stahlecker Fritz Zuführ- und Auflöseeinrichtung für eine OE-Spinnvorrichtung

Also Published As

Publication number Publication date
EP0291711B1 (fr) 1991-07-03
JPS63303133A (ja) 1988-12-09
DE3716727C2 (de) 1996-07-18
US4825637A (en) 1989-05-02
DE3863485D1 (de) 1991-08-08
DE3716727A1 (de) 1988-12-01
JP2550150B2 (ja) 1996-11-06

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