EP1295974A2 - Métier à filer à jet d'air avec un dispositif défibreur - Google Patents

Métier à filer à jet d'air avec un dispositif défibreur Download PDF

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Publication number
EP1295974A2
EP1295974A2 EP02012276A EP02012276A EP1295974A2 EP 1295974 A2 EP1295974 A2 EP 1295974A2 EP 02012276 A EP02012276 A EP 02012276A EP 02012276 A EP02012276 A EP 02012276A EP 1295974 A2 EP1295974 A2 EP 1295974A2
Authority
EP
European Patent Office
Prior art keywords
roller
fibers
conveyor belt
take
air
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
EP02012276A
Other languages
German (de)
English (en)
Other versions
EP1295974A3 (fr
EP1295974B1 (fr
Inventor
Hans Raasch
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
Saurer GmbH and Co KG
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, Saurer GmbH and Co KG filed Critical W Schlafhorst AG and Co
Publication of EP1295974A2 publication Critical patent/EP1295974A2/fr
Publication of EP1295974A3 publication Critical patent/EP1295974A3/fr
Application granted granted Critical
Publication of EP1295974B1 publication Critical patent/EP1295974B1/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
    • D01H4/02—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 imparting twist by a fluid, e.g. air vortex
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H1/00—Spinning or twisting machines in which the product is wound-up continuously
    • D01H1/11—Spinning by false-twisting
    • D01H1/115—Spinning by false-twisting using pneumatic means
    • 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
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • the invention relates to an air spinning device with a Dissolving device for dissolving slivers after Preamble of claim 1.
  • a sliver is opened by means of an opening roller Individual fibers dissolved.
  • airspinning or at It is open to spinning processes such as friction spinning Avoiding fiber compression usually desirable that the fiber material all the way from the Feed device of the opening roller up to the take-off device of the thread can be accelerated continuously. In this way the fibers remain stretched.
  • a spinning process is known from DE 196 01 038 A1, at to which several slivers of an opening roller are fed.
  • the dissolved fibers are perforated and suctioned take-off roller removed from the opening roller.
  • the Single fibers should not slow down at the transfer points, but ideally be accelerated to a Avoid upsetting the fibers.
  • the take-off roller works a friction roller together.
  • the fibers are in the gusset of take-off roller and friction roller with swirl across subtracted to the transport direction.
  • By generating swirl creates a false twist, which after the gusset from the Unscrews the fiber structure. So that the fiber structure is firm is a pneumatic swirl nozzle after the gusset. arranged. Detached fiber ends should be in the swirl nozzle to be wound around the fiber core. Through the dissolving False twist, however, disrupts the removal of fiber ends.
  • the yarn strength to be achieved in this way is low.
  • the of The combing elements transported fibers can be anywhere a largely random location between the Surface of the opening roller or the foot of one Saw tooth set and the tip of the combing elements.
  • the Removal from the set of the opening roller takes place in free flight, the flight distance from the starting position of the Fibers in the set is dependent.
  • the generic DE 197 46 602 A1 is a spinning process can be seen in the sliver from an opening roller dissolved, the individual fibers taken over by a take-off roller and a thin nonwoven fabric is formed on the take-off roller and is merged. It is supposed to be a spun-like one Fibrous dressing arise through the participation of Removal roller formed clamping line and one pneumatically working swirl nozzle is supplied. The Merging the thin nonwoven is done by corresponding design of the suction insert in the take-off roller causes. The suction area of the take-off roller tapers in the direction of fiber transport. Such a merger of the thin nonwoven fabric only has a chance of success if for the merging of the thin nonwoven fabric is sufficient long distance is available.
  • Stuck fibers can also cause fiber winding on the take-off roller and thereby significantly disrupt the function of the spinning device or even prevention. Due to the extensive suction areas, in particular with two suctioned pick-up rollers, one arises high suction air consumption, which is the spinning process in its Profitability significantly affected.
  • JP (A) 3-15 2223 describes a friction spinning process known in which a belt is used as a collecting surface.
  • this publication are regarding the interaction of the individual elements no speed ratios or Distance settings specified.
  • An air extraction at which Air is sucked through the belt is not recognizable or available.
  • the friction belt clamps on the Gathering line incoming fibers so that the peeling of the Rotated fiber structure is difficult.
  • the invention has for its object the known Improve devices for air spinning.
  • a conveyor belt designed according to the invention is issued Surprisingly, neither the one in the gusset Fiber dressing, which is taken over from the opening roller Fibers exist, a turn still prepares for pulling the Fiber dressing any difficulties. After Deflection by 90 degrees, the fibers are stretched and parallel in a strand-like fiber structure. This position of the fibers remains during transport through the subsequent terminal point Get air swirl nozzle and enables a very good Spinnability of the fiber structure using an air spinning process.
  • conveyor belt In a tangential to the take-off roller according to claim 2 arranged conveyor belt is the change of fibers from the Removal roller to the conveyor belt supported. In the bottom gusset between the take-off roller and the conveyor belt Extraction of the perforated take-off roller on the spot with the smallest airflow coming from below generates which helps to detach the fibers from the take-off roller.
  • Is the distance according to claim 3 as the smallest distance Chosen 0.2 mm to 0.7 mm, is the surface of the Conveyor belt on the one hand close enough to the take-off roller positioned to the transported on the take-off roller Fibers via mechanical contact and a free to avoid uncontrolled flight of the fibers, on the other hand the surface of the conveyor belt is far enough from that Removal roller removed to act on the Fiber dressing with a twist generated by friction or to prevent the fiber withdrawal from the gusset from becoming difficult.
  • An airtight conveyor belt according to claim 6 prevents unwanted interference from below into the Gusset directed air flow and increases the safety of the Detachment of the fibers from the take-off roller.
  • the air spinning device according to the invention allows one economical and unimpeded production of a yarn the air spinning process and overcomes disadvantages of known ones Devices.
  • the air spinning device 1 shown in FIG. 1 has one Fiber opening device 2 with feed roller 3, feed trough 4 and opening roller 5.
  • feed roller 3 feed roller 3 and feed trough 4 formed terminal point and is the Opening roller 5 supplied.
  • the feed roller 3 is in the usual way driven by a motor 7 via a toothed belt 8, wherein the speed is infinitely adjustable.
  • the opening roller 5 is on its circumference with combing elements designed as needles 9 occupied. In an alternative training, not shown the opening roller 5 is equipped with combing elements be formed by a sawtooth wire set.
  • the fed fiber material is after passing the nip captured by the needles 9 of the rotating opening roller 5 and taken.
  • the jacket of the opening roller 5 has a variety of holes 10, each between the needles 9th are arranged.
  • a stationary stationary suction insert 11 arranged to one of For reasons of simplification, vacuum source not shown connected.
  • the suction insert 11 is in one Area which is approximately a quarter of the circumference of the opening roller 5 includes and from the combing point to the transfer point or up to the feeding zone of the fibers to the Removal roller 12 extends, a negative pressure is applied.
  • the of the needles 9 detected and from the fiber structure of Detached fibers are removed by the on the Bores 10 sucked vacuum.
  • peripheral jacket 13 of the take-off roller 12 is perforated.
  • the in the take-off roller 12 is a stationary suction insert 14 also connected to the aforementioned vacuum source. With the help of the suction insert 14 is in the area between the takeover point of the fibers from the opening roller 5 to the Take-off roller 12 and the take-off point of the fibers from the take-off roller 12 on the conveyor belt 15 a vacuum to the Cover 13 of the take-off roller 12 placed.
  • the recess 16 in Suction insert 14 is over the air channels 17 and 18 and over the Vacuum chamber 19 connected to the vacuum source.
  • the Air flowing to air duct 17 supports the takeover of the Fibers from the opening roller 5 on the take-off roller 12, and the Air flowing to the air duct 18 supports the detachment of the Fibers from the take-off roller 12.
  • the conveyor belt 15 runs axially parallel and tangential to the take-off roller 12 in one Distance of 0.4 mm.
  • the air sucked in by the air duct 18 flows from below in the gusset between jacket 13 and conveyor belt 15. This air flow supports the detachment of the fibers from the take-off roller 12 and steers it against the Conveyor belt 15.
  • the fibers are removed from the conveyor belt 15 detected and in the transport direction of the conveyor belt 15 to Redirected 90 degrees and taken away.
  • the conveyor belt 15 has a slightly higher speed than that Circumferential speed of the jacket of the take-off roller 12.
  • the conveyor belt 15 has a micro-rough surface and consists of soft rubber.
  • the entrained fibers form a on the conveyor belt 15 strand-like fiber structure made of fibers arranged in parallel. After turning 90 degrees in the horizontal direction the fiber structure passes through a nip and passes then the air swirl nozzle 20.
  • Air swirl nozzle 20 By means of the air swirl nozzle 20 is caused that the Fiber bundle with one around the continuous fiber strand rotating air flow is applied. In doing so Fiber ends spread apart from the fiber structure and around the so-called Core fibers wrapped.
  • the principle of such Air spinning is for example from DE 197 46 602 A1 known.
  • the thread 21 passes through a Take-off device 22, the take-off rollers 23 and 24 being one Form the clamping point.
  • the thread 21 thus spun is on a wound bobbin, not shown.
  • the drive of the The opening roller 5 and the take-off roller 12 are carried out by the Motor 25 and over the belt 26.
  • the belt 26 drives over the Gear device 27, the conveyor belt 15 and by means of Belts 28 on the take-off rollers 23 and 24.
  • Opening roller 5, Take-off roller 12, conveyor belt 15 and the take-off rollers 23 and 24 have one from the opening roller 5 to Discharge device 22 each rising slightly Velocity of circulation.
  • the gear ratios remain the same for every spinning speed.
  • the conveyor belt 15 runs over the deflection rollers 29 and 30 and is arranged so that it extends along the entire perforated working width of the take-off roller 12 extends.
  • the Pinch roller 31 presses resiliently against the deflection roller 29 or the conveyor belt 15.
  • the fiber structure follows the deflection of the sliver 15 on the deflection roller 29 to Clamping line between deflection roller 29 and pinch roller 31.
  • Die Air swirl nozzle 20 protrudes into the gusset by the Deflection roller 29 and the pinch roller 31 is formed.
  • connection piece 32 On the Connection piece 32 is the air swirl nozzle 20 with a shown compressed air source connected.
  • the compressed air serves the generation of the rotating air flow with which the Fiber structure in the air swirl nozzle 20 is applied.
  • the Air pressure during spinning is 5 to 9 bar.
  • the Connection piece 33 is connected to a vacuum source. Fibers are sucked off via the connecting piece 33, which at Spin on or become free when spinning.
  • the negative pressure for the suction of those that detach themselves from the fiber structure Fibers during spinning are about 20 mbar.
  • Air twist nozzle 20 sucks the fibers from the conveyor belt 15 become.
  • the pinch roller 31 is from the conveyor belt 15 lifted.
  • the suction flow causes the fibers to be the first Follow the deflection of the conveyor belt 15 around the deflection roller 29 and then sucked into the air swirl nozzle 20.
  • At the beginning of piecing is pulled out of the gusset Air twist nozzle 20 sucked a piecing thread, which previously the lifted pinch roller 31 is steered. If the from Conveyor belt 15 sucked fiber bundle together with the Piecing thread passes through the air twist nozzle 20, the Pinch roller 31 applied to the conveyor belt 15, the Compressed air supply for loading the fiber structure with a rotating air flow turned on and the vacuum the vacuum source to about 20 mbar instead of 100 mbar set.
  • the fibers connect to the piecing path.
  • the feed of the The piecing thread is stopped after the spinning process has started Has.
  • the narrow sliver is also further into the Air swirl nozzle 20 sucked in after the pinch roller 31 again was placed on the conveyor belt 15.
  • the fibers also follow without deflection of the deflection of the conveyor belt 15, because the deflection path is much shorter than the stack length of the fibers. Shortened fibers also contained in the fiber structure therefore join the redirection because it is from the longer Fibers are guided or supported.
  • the Trigger device 22 is synchronized with the application of the Pinch roller 31 on the conveyor belt 15 activated by the Draw roller 23 is applied to the driven draw roller 24 becomes.
  • the thread 21 After passing through the take-off device 22, the thread 21 a winding device, not shown, for manufacturing fed to a package.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
EP02012276A 2001-09-21 2002-06-05 Métier à filer à jet d'air avec un dispositif défibreur Expired - Lifetime EP1295974B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10146608 2001-09-21
DE10146608A DE10146608A1 (de) 2001-09-21 2001-09-21 Luftspinnvorrichtung

Publications (3)

Publication Number Publication Date
EP1295974A2 true EP1295974A2 (fr) 2003-03-26
EP1295974A3 EP1295974A3 (fr) 2003-07-23
EP1295974B1 EP1295974B1 (fr) 2005-09-14

Family

ID=7699825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012276A Expired - Lifetime EP1295974B1 (fr) 2001-09-21 2002-06-05 Métier à filer à jet d'air avec un dispositif défibreur

Country Status (5)

Country Link
US (1) US6745553B2 (fr)
EP (1) EP1295974B1 (fr)
CN (1) CN1408909A (fr)
CZ (1) CZ20022317A3 (fr)
DE (2) DE10146608A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE503861C2 (sv) 1994-10-24 1996-09-23 Perstorp Flooring Ab Förfarande för framställning av en golvlist
WO2005026420A1 (fr) * 2003-09-12 2005-03-24 Maschinenfabrik Rieter Ag Ensemble banc d'etirage-banc a broches permettant de produire une meche par un procede de filage pneumatique
CN1882728B (zh) * 2003-09-12 2010-09-01 里特机械公司 并条-头道粗纱联合机和用于从纤维组中制造粗纱的方法
US20100307125A1 (en) * 2009-06-08 2010-12-09 Niederer Kurt W Fiber-twist-spinning
BG111027A (en) * 2011-09-03 2013-03-29 Et-"D-A-Dinko Bahov" ахов"ЕТ-"Д-А-Динко Б Method and apparatus for obtaining a yarn from a strand in a single process of extrusion, withdrawal and sizing

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610960A1 (de) * 1996-03-20 1997-09-25 Fritz Stahlecker Verfahren zum Offenend-Spinnen
DE19746602A1 (de) * 1997-10-22 1999-04-29 Fritz Stahlecker Spinnverfahren

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03152223A (ja) 1989-11-08 1991-06-28 Murata Mach Ltd 精紡機
DE4018702A1 (de) * 1990-06-12 1992-01-02 Fritz Stahlecker Vorrichtung zum verspinnen von stapelfasern zu einem garn
DE19601038A1 (de) 1996-01-13 1997-07-17 Fritz Stahlecker Verfahren zum Offenend-Spinnen
DE19613192A1 (de) * 1996-04-02 1997-10-09 Fritz Stahlecker Vorrichtung zum Offenend-Spinnen
DE19727575C2 (de) * 1997-06-28 2003-11-06 Zinser Textilmaschinen Gmbh Verfahren zum Herstellen eines textilen Garnes und Vorrichtung
DE19748615A1 (de) * 1997-11-04 1999-05-06 Fritz Stahlecker Verfahren zum Offenend-Spinnen
DE19850518A1 (de) 1998-11-03 2000-05-04 Schlafhorst & Co W Vorrichtung zum Auflösen von Faserbändern
DE10101660A1 (de) * 2001-01-10 2002-07-11 Fritz Stahlecker Spinnvorrichtung

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19610960A1 (de) * 1996-03-20 1997-09-25 Fritz Stahlecker Verfahren zum Offenend-Spinnen
DE19746602A1 (de) * 1997-10-22 1999-04-29 Fritz Stahlecker Spinnverfahren

Also Published As

Publication number Publication date
DE50204241D1 (de) 2005-10-20
DE10146608A1 (de) 2003-04-10
US20030056488A1 (en) 2003-03-27
CZ20022317A3 (cs) 2003-05-14
EP1295974A3 (fr) 2003-07-23
EP1295974B1 (fr) 2005-09-14
CN1408909A (zh) 2003-04-09
US6745553B2 (en) 2004-06-08

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