EP1006223B1 - Dispositif pour défibrer une mèche - Google Patents

Dispositif pour défibrer une mèche Download PDF

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Publication number
EP1006223B1
EP1006223B1 EP99119919A EP99119919A EP1006223B1 EP 1006223 B1 EP1006223 B1 EP 1006223B1 EP 99119919 A EP99119919 A EP 99119919A EP 99119919 A EP99119919 A EP 99119919A EP 1006223 B1 EP1006223 B1 EP 1006223B1
Authority
EP
European Patent Office
Prior art keywords
roller
combing elements
opening
opening roller
support roller
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 - Lifetime
Application number
EP99119919A
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German (de)
English (en)
Other versions
EP1006223A1 (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
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 EP1006223A1 publication Critical patent/EP1006223A1/fr
Application granted granted Critical
Publication of EP1006223B1 publication Critical patent/EP1006223B1/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
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers

Definitions

  • the invention relates to a device for resolving Fiber tapes according to the preamble of claim 1.
  • a sliver is made using a Opening roller with combing elements on its circumference, for example Saw teeth or needles, dissolved up to the single fiber.
  • the Sliver is the opening roller of a feed device fed evenly.
  • a known feeding device has a corrugated roller and a feed table or a Feed tray, which both work together and a nip form. This gets to the deflection edge of the feed table Sliver in the effective range of on the scope of Opening roller surrounding combing elements.
  • the Opening roller is usually with a Circumferential speed driven from 20 to 30 m / sec. To one uneven resolution of the sliver and an increased Removal of not or only partially resolved Avoiding tufts of fiber from the sliver will be high Circumferential speeds of the opening roller selected.
  • the combing elements are on the circumference of the opening roller arranged that their to the axis of rotation of the opening roller ideally equally spaced tips on an imaginary helical curve, comparable to a catchy one or multi-start thread.
  • the combing elements or their Chest surfaces are usually at an angle of 15 ° to 20 ° inclined in the running direction of the opening roller in order to pull in of the fibers in through the helical shape of the tips to support alleys formed between the combing elements.
  • Such a so-called positive breast angle Combing elements make it difficult to detach the fibers from the Opening roller for further transport in the air flow.
  • to Support in detaching the fibers from the combing elements of the The opening roller is the transport air speed in each case higher than the peripheral speed of the opening roller set.
  • the fibers become a twist like that Spinning rotor or the friction rollers and promoted there Thread size collected, drawn off and turned.
  • An open-end spinning device designed as a friction spinning device with two friction rollers, for example described in DE 195 26 845 A1.
  • DE 31 27 415 A1 discloses a feed and Dissolver by using as a rack trained fixed support elements in the sliver Hold the area of the opening roller assembly and that Moving the beard in the axial direction of Prevent opening roller.
  • the prongs of a support element can be in between intervene with the existing furniture alleys.
  • the use of the support element as a combing element requires parallel rows of teeth on the circumference of the opening roller, like you 8 of DE 31 27 415 A1 are shown. parallel However, rows of teeth are unsuitable for effective combing out. For this reason, the device could be used in the last not enforce two decades. Revealed further DE 2130658 A1 describes the preamble of claim 1
  • the invention is based, known Devices for dissolving fiber tapes for feeding to improve an OE spinning device.
  • the inventive design of the device leads to a particularly intense influence and interaction of the Comb elements of the opening roller and the support roller the fiber material.
  • the fiber material is better in one hand the effective area of the combing elements retracted and better in the Alleys pressed between the combing elements and the effect of Comb elements more exposed, but also that Removing the fibers from the opening roller by the friction supports the additional combing elements. Dodging the Fibrous beard in front of the combing elements is prevented and the number the one that engages in the fiber material at the same time Combing elements and their effect on the fiber material advantageously increased. The dissolution of the fiber material will sustainably improved.
  • the arrangement of the combing elements on the Opening roller in the form of a catchy or multi-course Thread leads through the axial thrust that the threads on the fibers, also to support the Removing the fibers from the opening roller. A sure one Removing the fibers from the opening roller. A sure one Compliance with the required angular position of the Support roller compared to the opening roller without mutual contact is guaranteed. In particular a touch while optimizing the effect of Combing elements avoided when the engagement of the combing elements Support roller in the middle of the alley-shaped trained space between the coils of the Combing elements of the opening roller takes place. It can continue to Inexpensive mass production rollers in normal design can be used.
  • the combing elements are preferably designed such that they a breast angle ⁇ in the range from + 5 ° to -10 ° exhibit.
  • This training makes it easier to remove the Fibers from the opening roller considerably and enables the to support the removal of the fibers from the Opener roller used low speed air flow to let flow.
  • the one for generating the air flow required pressure difference can be a lot lower value than usual.
  • the negative pressure is one of the generation of the with that of the Opening roller of detached fibers from the air flow serving vacuum source below 10 mbar, in particular 3 to 5 mbar. So clear compared to a vacuum of 20 up to 25 mbar reduced with conventional dissolving devices Negative pressure for the generation of the transport air flow leads to considerable savings in operating costs with the large number of spinning positions of a spinning machine. This saving can be both with friction spinning machines and with Achieve rotor spinning machines.
  • the reduced peripheral speed of the opening roller, a short residence time of the fibers on the circumference of the opening roller as well as interacting with a degraded one Speed of the air flow between the opening roller and the OE spinning device leads to a desirably low one Speed of the fibers when they hit the gusset a friction spinning device.
  • the fibers meet there a thread that usually forms with a Speed of only 3 to 5 m / sec moves and is subtracted.
  • a roughened surface can the effect of the combing elements are enhanced.
  • the arrangement of the combing elements is advantageous formed spiral in its course around the circumference of the roller interrupted by comb-free sections. a lateral emergence of fibers from the combing area due to excessive axial conveying effect, such as at low Distance of the successive combing elements respectively This can prevent narrow needle spacing.
  • the preferred embodiment of the combing elements Back-up roller leaves as sections of a pointed thread produce themselves particularly easily and inexpensively. After this Applying a thread to the roller surface can Production of the sections by milling or grinding respectively.
  • the opening roller and the support roller advantageously have Markers for positioning on. Leave the markings generate easily and with little effort, for example by Paint application or by scratching or wrapping, and allow as an assembly aid when reinstalling the two rollers fast and accurate reproduction of the required Angular position or the axial position.
  • a resolution device 1 is shown, the via a fiber guide channel 2 with an OE spinning device 3 connected is.
  • the fiber material is in the form of a Sliver 4 via a feed table 5 by means of a Feed roller 6 fed to an opening roller 8.
  • a spring 27 presses the feed table 5 against the feed roller 6. This will a nip 7 is formed, which run through the sliver 4 must become. After passing through the nip 7, it arrives Sliver 4 in the effective area of the opening roller 8 and is on the front edge of the feed table 5 deflected.
  • the Combing elements 9 of the opening roller 8 comb this as a fiber beard 10 protruding into the effective range of the opening roller 8 Fiber material and remove fibers from the fiber structure.
  • the Feed table 5 is arranged on a holder 12 in which a support roller 13 below the feed table 5 is stored.
  • the support roller 13 engages with their Combing elements 14 in the effective area of the combing elements 9 of the Opening roller 8 and creates a common Effective area 11 with the opening roller 8.
  • Both the Combing elements 9 of the opening roller 8 as well as the combing elements 14 the support roller 13 are designed as needles, the are arranged vertically on the circumference of the roller. The In this position, needles have a chest angle of 0 °. You can but also as teeth, especially as one teeth All-steel furniture, be trained.
  • the two sieve drums 16 of the OE spinning device 3 are open a fixed suction device 17 stored by a vacuum source not shown for simplicity is fed.
  • One suction slot 18 each is for spinning gusset directed.
  • the air flowing in through the suction slots 18 becomes the gusset through the opening in the roller cover 15 and the fiber guide channel 2 supplied.
  • the forming The fiber strand rotates due to the friction on the sieve drums 16 and creates a yarn.
  • the yarn is not one deductor shown deducted and on a spool wound.
  • FIG. 2 shows that the combing elements 9, 14 of the opening roller 8 and Support roller 13 are arranged helically.
  • the direction of the helix of the opening roller 8 is corresponding to the directions of rotation of the opening roller 8 and Support roller 13 opposite to the slope direction of the Support roller 13.
  • the opening roller 8 and the support roller 13 are in relation to one another arranged that arranged in a helix Combing elements 14 of the support roller 13 in the effective area 11 each in the alley-shaped space between two adjacent coils which also run helically arranged combing elements 9 of the opening roller 8 in the middle of the Intervene alley.
  • the opening roller 8 and the Support roller 13 have on its end face Markings 19 on, as shown in Fig. 1 in alignment can be set and thus a quick reproduction of the allow required angular positions.
  • the drive of the Support roller 13 is carried out by a gear drive one with the opening roller 8 rotating gear 20 and one with the support roller 13 rotating gear 21. With the In Fig. 1 recognizable lever 22, the bracket 12 can counter are pivoted clockwise so that combing elements 9, 14 and gears 20, 21 come out of engagement and the Opening roller 8 and the support roller 13 by axial Pull out can be removed.
  • Fig. 3 shows the teeth 23 acting as combing elements All-steel set on a conventional opening roller.
  • the Teeth 23 are designed with a positive breast angle ⁇ , as it is usually used with opening rollers, in order to Pulling the fibers between the combing elements of the opening roller to support, however, the removal of the fibers from the Opening roller considerably more difficult.
  • Fig. 4 shows teeth 24 of an all-steel set with a negative Breast angle ⁇
  • the combing elements 9, 14, 24 according to the invention can work.
  • the negative chest angle ⁇ of teeth 24 facilitates the detachment of the fibers from the opening roller 8 essential.
  • the arrangement and function of the Support roller 13 ensures sufficient Drawing the fibers of the fiber beard 10 into the alleys between the combing elements 9.
  • the teeth 24 have on both sides in a partial area 30 on a roughened surface. This roughened surface can, for example, by blasting or also be produced by coating with diamond grain and increases the dissolving and entraining effect of the Combing elements 9 on the fiber material.
  • Support roller 28, 29 have combing elements 25, 26 which for example by milling on a roller Point threads are generated.
  • the embodiment of the Support roller 28 has four per thread Combing elements 25 and the embodiment of Support roller 29 two combing elements 26 per thread on.
  • the machining surfaces created by milling interrupt the spirals of the respective pointed thread and generate the shapes acting as combing elements 25, 26.
  • Friction spinning device 1 is an exemplary embodiment Friction spinning device selected.
  • the invention is not shown on the Embodiments and application examples limited.

Landscapes

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

Claims (11)

  1. Dispositif pour défibrer des rubans de fibres (4) afin d'alimenter une machine à filer à fibres libérées (3), comprenant un dispositif d'amenée des rubans de fibres menant à un cylindre de défibrage (8) rotatif portant sur son pourtour des peignes disposés en hélice (9, 24), et un point de serrage (7) formé par le dispositif d'amenée des rubans de fibres, sachant que les peignes (9, 24) s'enfoncent dans la matière fibreuse immobilisée par le point de serrage (7) et pénétrant sous forme de mèches (10) dans le rayon d'action des peignes (9, 24), sachant qu'un cylindre d'appui (13, 28, 29) portant des peignes (14, 24, 25, 26), tournant en sens inverse par rapport à ceux du cylindre de défibrage (8) et engrenant avec ce dernier dans une zone active commune (11) est prévu et que la zone active (11) se situe après le point de serrage (7) dans le sens de circulation des fibres, caractérisé en ce que les peignes (14, 24, 25, 26) du cylindre d'appui (13, 28, 29) qui s'étendent également en forme d'hélice engrènent avec les peignes (9, 24) du cylindre de défibrage (8) dans l'intervalle en forme de ruelle réalisé entre les hélices de ces derniers, et en ce que le rapport de multiplication entre la vitesse de rotation du cylindre de défibrage (8) et la vitesse de rotation du cylindre d'appui (13, 28, 29), et le rapport entre la progression du pas de l'hélice formée par la disposition des peignes (9, 24) du cylindre de défibrage (8) et la progression du pas correspondante du cylindre d'appui (13, 28, 29) sont identiques.
  2. Dispositif selon la revendication 1, caractérisé en ce que les peignes (14, 24, 25, 26) du cylindre d'appui (13, 28, 29) engrènent avec les peignes (9, 24) du cylindre de défibrage (8) au milieu de l'intervalle en forme de ruelle qui sépare les hélices de ces derniers.
  3. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les peignes (9) présentent un angle d'attaque α compris entre +5° et -10°.
  4. Dispositif selon la revendication 3, caractérisé par une source de dépression semant à produire un flux d'air sollicitant les fibres libérées par le cylindre de défibrage (8), qui est réglée pour générer une dépression inférieure à 10 mbar, notamment comprise entre 3 et 5 mbar.
  5. Dispositif selon l'une des revendications précédentes, caractérisé en ce que la vitesse périphérique du cylindre de défibrage (8) est inférieure à 15 m/s, notamment comprise entre 5 et 10 m/s.
  6. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le cylindre d'appui (13, 28, 29) est accouplé au cylindre de défibrage (8) par l'intermédiaire d'un engrenage, et en ce que le rapport de multiplication entre le cylindre de défibrage (8) et le cylindre d'appui (13, 28, 29) est de 1 : 2.
  7. Dispositif selon l'une des revendications précédentes, caractérisé en ce qu'au moins une partie de la surface des peignes (9, 14, 24, 25, 26) est rendue rugueuse.
  8. Dispositif selon l'une des revendications précédentes, caractérisé en ce que l'hélice formée par la disposition des peignes (14, 25, 26) du cylindre d'appui (28, 29) voit son tracé autour du cylindre interrompu par des segments exempts de peignes.
  9. Dispositif selon l'une des revendications précédentes, caractérisé en ce que les peignes (25, 26) du cylindre d'appui (28, 29) sont réalisés sous forme de segments d'un filet triangulaire.
  10. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le cylindre d'appui (13, 28, 29) est monté dans un support (12) qui porte simultanément le dispositif d'amenée des rubans de fibres.
  11. Dispositif selon l'une des revendications précédentes, caractérisé en ce que le cylindre de défibrage (8) et le cylindre d'appui (13, 28, 29) portent des repères (19) de positionnement.
EP99119919A 1998-11-03 1999-10-09 Dispositif pour défibrer une mèche Expired - Lifetime EP1006223B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19850518 1998-11-03
DE19850518A DE19850518A1 (de) 1998-11-03 1998-11-03 Vorrichtung zum Auflösen von Faserbändern

Publications (2)

Publication Number Publication Date
EP1006223A1 EP1006223A1 (fr) 2000-06-07
EP1006223B1 true EP1006223B1 (fr) 2003-01-15

Family

ID=7886448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99119919A Expired - Lifetime EP1006223B1 (fr) 1998-11-03 1999-10-09 Dispositif pour défibrer une mèche

Country Status (4)

Country Link
US (1) US6226838B1 (fr)
EP (1) EP1006223B1 (fr)
JP (1) JP2000136445A (fr)
DE (2) DE19850518A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10142488A1 (de) 2001-08-30 2003-03-20 Schlafhorst & Co W Auflöseeinrichtung für eine Offenend-Spinnvorrichtung
DE10146608A1 (de) 2001-09-21 2003-04-10 Schlafhorst & Co W Luftspinnvorrichtung
DE10209008A1 (de) * 2002-02-26 2003-09-04 Stahlecker Gmbh Wilhelm Garniturträger für eine Auflösewalze
US20050079831A1 (en) * 2003-10-09 2005-04-14 International Business Machines Corporation Signal strength indicator for a wireless card
DE102008004098A1 (de) * 2007-06-29 2009-01-02 TRüTZSCHLER GMBH & CO. KG Vorrichtung zur Fasersortierung bzw. -selektion eines Faserverbandes aus Textilfasern, insbesondere zum Kämmen, der über Zuführmittel einer Fasersortiereinrichtung, insbesondere Kämmeinrichtung zugeführt wird
CN104350198B (zh) * 2012-04-24 2017-03-08 阿葛曼技术有限公司 向合成和天然纤维表面施加化学化合物的方法以及用于该方法的系统
DE102016117614A1 (de) * 2016-09-19 2018-03-22 Saurer Germany Gmbh & Co. Kg Rotorspinnvorrichtung
JP2018204121A (ja) * 2017-05-30 2018-12-27 村田機械株式会社 ローラユニット、ドラフト装置及び紡績機
CN108085815B (zh) * 2018-01-17 2023-05-02 江苏薪泽奇机械股份有限公司 一种喷毛纱纺织机构

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Also Published As

Publication number Publication date
DE59904034D1 (de) 2003-02-20
DE19850518A1 (de) 2000-05-04
US6226838B1 (en) 2001-05-08
JP2000136445A (ja) 2000-05-16
EP1006223A1 (fr) 2000-06-07

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