EP0236323B1 - Offenend-spinnvorrichtung - Google Patents

Offenend-spinnvorrichtung Download PDF

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Publication number
EP0236323B1
EP0236323B1 EP85905771A EP85905771A EP0236323B1 EP 0236323 B1 EP0236323 B1 EP 0236323B1 EP 85905771 A EP85905771 A EP 85905771A EP 85905771 A EP85905771 A EP 85905771A EP 0236323 B1 EP0236323 B1 EP 0236323B1
Authority
EP
European Patent Office
Prior art keywords
collecting surface
fibers
thread
fibres
collecting
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.)
Expired
Application number
EP85905771A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0236323A1 (de
Inventor
Karl Handschuch
Erich Bock
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.)
Rieter Ingolstadt Spinnereimaschinenbau AG
Original Assignee
Schubert und Salzer Maschinenfabrik 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6250206&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0236323(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schubert und Salzer Maschinenfabrik AG filed Critical Schubert und Salzer Maschinenfabrik AG
Publication of EP0236323A1 publication Critical patent/EP0236323A1/de
Application granted granted Critical
Publication of EP0236323B1 publication Critical patent/EP0236323B1/de
Expired 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
    • D01H4/04—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 contact of fibres with a running surface
    • D01H4/16—Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum

Definitions

  • the invention relates to an open-end spinning device with a disintegration device and two closely adjacent and drivable friction rollers, in the gusset area of which the fibers are twisted into a thread, and a thread take-off device.
  • fiber material is dissolved in individual fibers which are introduced directly into the gusset area between two closely adjacent, equally large, parallel suction drums (DE-PS 2 449 583).
  • the two suction drums rotate in the same direction, and the individual fibers are fed into the gusset area on the fly, where they meet the suction zone of the suction drums in a flow approximately perpendicular to the plane defined by the two drum axes. Due to the rotation of the suction drums, the fibers are twisted together and drawn off as a thread parallel to the drums by means of a pair of draw-off rollers.
  • the object of the present invention is to provide a device which makes it possible to feed the fibers into the gusset in a controlled and parallel manner and thus to improve the structure and strength of the yarn.
  • the object is achieved according to the invention in a device according to the preamble of claim 1 by a collecting surface moving parallel to the thread formation line, through which the fibers are fed to the gusset area and whose distance from the thread formation line is so large that the fibers freely move into the gusset area can move.
  • the collecting surface is arranged on the circumference of a disk-like cylinder, the axis of rotation of which lies in a plane perpendicular to the gusset.
  • the surface speed of the collecting surface is approximately equal to the thread take-off speed, which means that the full fiber mass required for the finished thread is already collected on the collecting surface and the fibers are therefore duplicated.
  • a warp with a further parallelization of the fibers in the gusset associated therewith and a doubling of the fibers on the collecting surface increased by this warpage is brought about by the fact that the surface speed of the collecting surface is lower than the thread take-off speed.
  • the surface speed of the collecting surface is at least equal to the feeding speed of the fibers.
  • the collecting surface is designed like a groove.
  • the width of the groove corresponds approximately to the thickness of the fiber material fed in, so that approximately a fiber formation corresponding to the yarn diameter is formed.
  • the cross section of the groove is expediently V-shaped.
  • the fibers are held on the collecting surface by needles.
  • the fibers are held pneumatically on the collecting surface.
  • the collection area is perforated and vacuumed. The subdivision of the collection area into different sectors has the advantage that conditions for holding the fibers during transport and for transferring them to the gusset area are created in a defined manner.
  • the detachment of the fibers from the collecting area in the gusset area is supported and accelerated by an air flow which flows through the collecting area in the area of the transfer sector and transports the fibers from the collecting area into the gusset area.
  • the air flow is generated in that the transfer sector of the quilt is connected to the atmosphere. If this is not sufficient, the transfer area of the collection area is pressurized. In order to obtain a defined air flow in the area of the collecting area, the collecting area is enclosed by a housing.
  • a dissolving device known per se is connected upstream of the collecting surface.
  • the opening device is connected to the collecting surface via a fiber channel which opens essentially tangentially in the direction of the movement of the collecting surface and the opening of which is adapted to the width of the collecting surface.
  • a cleaning device is expediently assigned to the collecting surface between the transfer point of the fibers into the gusset area and the feeding point. Because the distance between the collecting surface and the thread formation line can be adjusted according to the length of the fibers to be spun, the device can be adapted to different spinning conditions.
  • Fig. 1 shows one of two friction rollers 1 and 2, which, as shown in Fig. 2, are arranged parallel and closely next to each other.
  • the friction rollers 1 and 2 form a gusset 3, in which fed fibers are spun into a yarn.
  • the friction rollers 1 and 2 are driven in the same direction in a manner not shown, for example by means of a tangential belt.
  • the friction roller 2 rotating out of the spinning gusset 3 is not perforated and is not vacuumed.
  • the roller 1 screwing into the spider gusset 3 has a perforated outer surface and is provided with a suction insert 10 connected to a suction device (not shown) (FIG. 2).
  • the suction insert 10 has in the gusset area a slot 11 which extends in the longitudinal direction of the spinning gusset 3 and through which a suction air flow is generated.
  • the design of the friction rollers has no influence on the invention. Both friction rollers can also be vacuumed.
  • the fiber material to be spun is broken down into individual fibers by a dissolving device arranged in a housing 4 in the form of a dissolving roller 5 fitted with a set, which is preceded by a feed roller 6, which cooperates with a feed trough 60, as feed device.
  • a disk-like cylinder 7 enclosed by the housing 4 is rotatably mounted, on the circumference of which a collecting surface 70 is provided.
  • the collecting surface 70 is connected to the opening device 5 via a fiber channel 51 which opens approximately tangentially in the direction of the rotational movement of the collecting surface 70 and the width of which is adapted to the collecting surface 70.
  • the cylinder 7 is mounted on a hollow shaft 8 fastened in the machine frame, which extends in a plane perpendicular to the spinning gusset 3, by means of roller bearings 81 and is expediently driven by a toothed belt 71 in the direction of the arrow P.
  • the cylinder 7, which moves parallel to the thread formation line L on the spinning gusset, should extend as far as possible into the gusset area so that the path of the fibers from the collecting surface 70 to the thread formation line L is as short as possible. As a result, the fibers are guided into the spider gusset 3 in a controlled manner.
  • the distance between the collecting surface 70 and the thread formation line L must be so large that the fibers can move freely in the spinning gusset 3 to ensure that there is an interruption or an open end of the thread into which the fibers are bound.
  • the distance between the collecting surface 70 and the thread formation line L is therefore determined by the length of the fibers to be spun. In order to be able to optimally use the spinning device for different fiber lengths, this distance can be adjusted, the pair of friction rollers or the entire housing 4 of the feeding and feeding device being adjustably mounted.
  • the actuating means that may be required for this are of a conventional type and are therefore not shown here.
  • the collecting surface 70 is preferably groove-shaped, so that the fiber material required for the yarn formation is completely absorbed and preformed in width and thickness.
  • the fibers are held in place during their transport to the spinning gusset 3 by a suction air flow on the bottom of the groove 72, which forms the collecting surface 70 and is perforated.
  • the disk-like cylinder 7 is connected to a suction device (not shown) via the hollow axis 8.
  • the suction air flow acts only in a sector I on the collecting surface, which extends in the direction of rotation of the cylinder 7 from the feeding point of the fibers onto the collecting surface 70 to its detachment point, which is predetermined by a transfer sector II.
  • the transfer sector II is kept free of the suction air flow by partition walls 74 so that the fibers can detach from the collecting surface 70.
  • seals 41 and 42 are arranged on the housing 4 at the beginning and end of this sector 111, which extend into the groove 72 and up to close to the collecting surface 70 or also tangent when the collecting surface 70 is not needled. In this case, the seals 41 and 42 also serve as wipers and exert a cleaning effect on the collecting surface 70. With a needled collection surface 70, brushes can serve this purpose.
  • the opening device consists, in a known manner, of a rapidly rotating clothing roller equipped with sawtooth wire, which is closely enclosed by a housing and in the wall of which a dirt separation opening is provided.
  • the fiber material is fed via the feed trough 60 as a sliver B by means of the feed roller 6 to the opening roller 5, by means of which the fibers are separated.
  • the negative pressure in sector I of cylinder 7 creates a transport air flow which transports the individual fibers through fiber channel 51 to collecting surface 70, on which the fibers are deposited.
  • the surface speed of the collecting surface 70 is equal to or slightly higher than the speed of the fibers at the exit of the fiber channel 51, so that the fibers are subjected to an acceleration when they transition to the collecting surface 70.
  • the surface speed of the collecting surface 70 is approximately equal to the thread take-off speed.
  • a further improvement in the yarn values can be achieved in that the surface speed of the fiber collecting surface 70 is lower than the thread take-off speed. In this case, the duplication on the collecting surface 70 is increased, while the fiber mass collected and duplicated in this way is subjected to a warping and thus a stretching and parallelization of the fibers during the binding into the spinning gusset 3.
  • the fibers which are preferably fed with simultaneous duplication onto the circumferential collecting surface 70, are transported there to the spinning gusset 3 via the sector I, on which they are held pneumatically and / or mechanically, and since the collecting surface 70 moves parallel to the thread formation line L in the intermeshing area, fed into the gusset 3 in the transfer sector II parallel to the thread axis. There they are connected in the thread formation line L to the rotating open thread end and turned into a thread or yarn.
  • the fibers can be fed directly into the spinning gusset 3 or also onto the outer surface of the friction roller 1 turning into the gusset 3, on which they are then transported to the thread formation line L.
  • the finished thread is drawn off by a pair of draw-off rollers 9 in the direction of rotation of the cylinder or also counter to the direction of rotation.
  • FIGS. 3 and 4 differs from the device shown in FIGS. 1 and 2 essentially in that the housing of the opening roller 5 and the cylinder 7 'defined by the walls 40 and 40' are arranged directly next to each other, so that the fiber channel 51 is omitted.
  • the two housings are connected to one another via a common connecting opening 43, through which the fibers are transferred from the opening roller 5, which is driven by a belt 52, to the fiber collecting surface 70.
  • the cylinder 7 'here is adapted to the width of the opening roller 5 and provided with V-shaped tapered edges which bring the fibers together from the width of the opening roller 5 to the width of the collecting surface 70.
  • the opening roller 5 is assigned a guide plate 53 which is attached to the housing 4 and from the point at which the fibers separate from the opening Loosen roller 5 until it extends close to the collecting surface 70.
  • the baffle 53 also has a sealing function. In connection with the fixed aperture 75 in the sector 111 and optionally with an additional sealing means 42 attached to the guide plate 53, it ensures that the fibers are not caught by an air flow directed against the direction of movement of the collecting surface 70, but only the air flow in the direction of rotation of the collecting surface 70 follow and are placed on the collection surface 70 oriented.
  • the seal 41 arranged in the direction of rotation of the cylinder 7 at the beginning of the sector 111 in FIG.
  • a shield 54 is also arranged, which extends in the vicinity of the collecting surface 70 (FIG. 3).
  • the shield 54 prevents fibers from being caught by the suction air flowing to the friction roller 1 before they are deposited on the collecting surface 70. It also prevents the fibers from leaving the collecting surface (70) prematurely and in an uncontrolled manner under the influence of the air flow emanating from the friction rollers 1 and 2.
  • a fiber guide plate 55 can additionally be provided following the connection opening 43. Otherwise, the function of this device is the same as that of the device according to FIGS. 1 and 2.
  • a rapidly rotating disk 83 enclosed by the housing 4 extends into the spider gusset 3 formed by the friction rollers 1 and 2.
  • the disk 83 is fastened on an axis 84 which is rotatably mounted in the housing 4 by means of roller bearings and which extends 3 ° in a plane perpendicular to the spinning gusset.
  • the pulley 83 is driven by a belt 85 and moves in the gusset area parallel to the thread formation line L (FIG. 1). So that the disk 83 extends as deeply as possible into the spinning gusset 3, its circumference is chamfered in accordance with the contour of the friction roller 2.
  • the surface of the disk 83 facing away from the drive forms the collecting surface 70, against which the mouth of the fiber channel 51 arranged in the housing 4 is directed.
  • the housing part containing the fiber channel 51 is pivotably arranged.
  • the fiber channel 51 connects the collecting surface 70 to the opening device shown in FIG. 1.
  • the fiber channel 51 should be aligned with the collecting surface 70 such that the approaching fibers strike the collecting surface 70 at an acute angle.
  • a feed angle can be specified.
  • the collecting surface 70 is perforated and at least in the region of the feeding point of the fibers is subjected to a vacuum.
  • a suction channel 86 is arranged on the side of the disk 83 facing away from the collecting surface 70 and is connected to a suction device (not shown).
  • the perforated or non-perforated collecting surface 70 can be coated and / or structured. A suitable coating also protects the collecting surface 70 from wear and increases its service life.
  • the negative pressure on the collecting surface 70 and the friction roller 1 in the fiber feed channel 51 creates a transport air flow through which the fibers separated by the opening device are transported to the collecting surface 70. It is advantageous if the fibers are stretched and oriented to a certain degree before they hit the collecting surface 70. To achieve this, a fiber channel is used, the inner contour of which has an acceleration zone for the fibers. Such cylindrical-conical fiber channels are known per se.
  • the rotational speed of the disk 83 is selected so that the surface speed of the collecting surface 70 at the feeding point of the fibers is at least equal to the speed of the approaching fibers.
  • the collecting surface 70 is thus also a fiber guide surface.
  • the fibers are then bound into the spinning gusset 3 at the free, rotating end of the yarn.
  • the finished thread is drawn off by the draw-off roller pair 9.
  • the thread can be drawn off in the direction of rotation or counter to the direction of rotation of the disk 83.
  • the disk 83 can also be arranged so that the fibers are thrown from it onto the jacket of the suctioned friction roller 1 and are transported there into the spider gusset 3.
  • the exemplary embodiment according to FIG. 7 shows a rotor 87 arranged in the housing 4, which is designed as an inner cone with a collecting surface 70 with a straight cross section, against which the mouth of the fiber channel 51 is directed.
  • the axis of rotation of the rotor 87 driven by the belt 85 is inclined in the direction of the spinning gusset 3, and the non-perforated friction roller 2 is smaller in diameter than the suctioned friction roller 1, so that the rotor 87 can dip as deeply as possible into the spinning gusset 3.
  • This device can be provided to apply a negative pressure to the collecting surface 70 and the fiber feed channel 51.
  • the chamber 88 in which the rotor 87 rotates is connected to a suction device via a suction line 89 and / or a vacuum flow is built up in the chamber 88 via the suctioned friction roller 1.
  • the collecting surface 70 instead of a straight collecting surface 70, one with a stepped, bent or rounded contour can also be provided. With contours of this type, for example in the case of long or very crimped fibers, greater fiber stretching can be achieved on the sliding line of the fibers. As with the disk 83 shown in FIGS. 5 and 6, the collecting surface 70 also functions as a fiber guide surface in this embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Nonwoven Fabrics (AREA)
EP85905771A 1984-11-13 1985-11-11 Offenend-spinnvorrichtung Expired EP0236323B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3441494A DE3441494A1 (de) 1984-11-13 1984-11-13 Offenend-spinnvorrichtung
DE3441494 1984-11-13

Publications (2)

Publication Number Publication Date
EP0236323A1 EP0236323A1 (de) 1987-09-16
EP0236323B1 true EP0236323B1 (de) 1989-03-15

Family

ID=6250206

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85905771A Expired EP0236323B1 (de) 1984-11-13 1985-11-11 Offenend-spinnvorrichtung

Country Status (6)

Country Link
US (1) US4697409A (enrdf_load_stackoverflow)
EP (1) EP0236323B1 (enrdf_load_stackoverflow)
CN (1) CN1011602B (enrdf_load_stackoverflow)
DE (2) DE3441494A1 (enrdf_load_stackoverflow)
IN (1) IN166571B (enrdf_load_stackoverflow)
WO (1) WO1986002956A1 (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4007607A1 (de) * 1990-03-09 1991-09-12 Schubert & Salzer Maschinen Spinnverfahren und vorrichtung zur herstellung eines garnes
DE19610960A1 (de) * 1996-03-20 1997-09-25 Fritz Stahlecker Verfahren zum Offenend-Spinnen
CH709312A1 (de) * 2014-02-27 2015-08-28 Rieter Ag Maschf Verdichtungsvorrichtung mit Saugtrommel.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR525518A (fr) * 1920-08-05 1921-09-23 Claudius Pelisson Crochet ondulé avec tendeur-pression pour brique creuse
DE361814C (de) * 1921-01-11 1922-10-19 Hans Holzwarth Dipl Ing Verfahren und Einrichtung zum Spuelen von Explosionsgasturbinen
DE900182C (de) * 1944-04-07 1953-12-21 Margarete Liesbet Schlegel Geb Verfahren und Vorrichtung zur Herstellung von spinnfaehigen Faserbaendern und -bahnen
US3750382A (en) * 1972-03-10 1973-08-07 Toray Industries Process and apparatus for feeding fiber in an open end spinning machine
AT333631B (de) * 1973-11-28 1976-12-10 Fehrer Ernst Vorrichtung zum spinnen textiler fasern
AT340809B (de) * 1976-06-21 1978-01-10 Fehrer Ernst Gmbh Vorrichtung zum spinnen textiler fasern
DE2732678A1 (de) * 1977-07-20 1979-02-01 Barmag Barmer Maschf Spinnverfahren
GB2042599B (en) * 1978-10-26 1983-09-21 Platt Saco Lowell Ltd Open-end spinning apparatus
DE3305621A1 (de) * 1983-02-18 1984-08-23 Fritz 7347 Bad Überkingen Stahlecker Oe-friktionsspinnmaschine
DE3308249A1 (de) * 1983-03-09 1984-09-13 Fritz 7347 Bad Überkingen Stahlecker Oe-friktionsspinnvorrichtung
DE3421204C2 (de) * 1984-06-07 1994-02-03 Schlafhorst & Co W Verfahren und Vorrichtung zum Herstellen eines echt gedrehten Fadens

Also Published As

Publication number Publication date
DE3568804D1 (en) 1989-04-20
DE3441494C2 (enrdf_load_stackoverflow) 1988-09-01
CN1011602B (zh) 1991-02-13
IN166571B (enrdf_load_stackoverflow) 1990-06-09
CN85108937A (zh) 1986-08-20
US4697409A (en) 1987-10-06
EP0236323A1 (de) 1987-09-16
DE3441494A1 (de) 1986-05-22
WO1986002956A1 (en) 1986-05-22

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