EP1660708A1 - Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere - Google Patents

Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere

Info

Publication number
EP1660708A1
EP1660708A1 EP04739736A EP04739736A EP1660708A1 EP 1660708 A1 EP1660708 A1 EP 1660708A1 EP 04739736 A EP04739736 A EP 04739736A EP 04739736 A EP04739736 A EP 04739736A EP 1660708 A1 EP1660708 A1 EP 1660708A1
Authority
EP
European Patent Office
Prior art keywords
rotor
spinning
channel plate
channel
outlet opening
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
EP04739736A
Other languages
German (de)
English (en)
Other versions
EP1660708B1 (fr
Inventor
Brigitte Riede
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
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 Saurer GmbH and Co KG filed Critical Saurer GmbH and Co KG
Publication of EP1660708A1 publication Critical patent/EP1660708A1/fr
Application granted granted Critical
Publication of EP1660708B1 publication Critical patent/EP1660708B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • D01H4/08—Rotor spinning, i.e. the running surface being provided by a rotor
    • 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
    • D01H4/38—Channels for feeding fibres to the yarn forming region

Definitions

  • the invention relates to a channel plate for an open-end rotor spinning device according to the preamble of claim 1.
  • Open-end rotor spinning devices with a rotor housing which is open towards the front and which is closed by a so-called channel plate during spinning operation are described in detail in the prior art and in numerous applications for industrial property rights.
  • both channel plates are known, which are integrated directly into a pivotably mounted cover element of the open-end rotor spinning device, and also channel plates, which can be screwed into the cover element.
  • channel plates are known which have a central bearing receptacle in which a channel plate adapter can be fixed in an easily replaceable manner.
  • Modern open-end spinning devices have, for example, a fiber channel plate integrated in the cover element, which closes the rotor housing that can be subjected to vacuum with a lip seal during the spinning process.
  • the cover element which covers the entire front of the open-end rotor spinning device, there is also a feed roller and an opening roller for the fiber sliver.
  • the duct plate adapter essentially consists of an insert body, the contact surface of which is precisely matched to the shape and size of the central bearing seat in the fiber duct plate, and a duct plate tower which projects into the spinning rotor when the spinning device is closed. On the back of the insert body there is a locking lug with a central bore in which a thread take-off tube is positioned.
  • a channel plate adapter can be defined in the bearing receptacle of the fiber channel plate via the locking projection and a corresponding locking element, for example a bar spring, and a centering pin.
  • the central hole in the insert body of the channel plate adapter also penetrates the channel plate tower, on the end face of which a thread take-off nozzle is fixed, which is inserted into the central hole of the channel plate adapter.
  • Such channel plate adapters are preferably matched to a specific rotor shape and / or rotor size, so that an accurate sliver feed and an optimal thread take-off can be ensured under all production conditions. This means that when changing the lot, which also requires a spinning rotor change, the duct plate adapter is usually also replaced.
  • the duct plate adapters described above have been in use for a long time and have been used by almost everyone Fiber materials and almost all thread sizes have been excellently proven.
  • the arrangement of the exit opening of the fiber guide channel at most only half in a cylindrical region of the lateral surface of the channel plate tower has the advantage that, in particular, by such a modification of the channel plate tower by reducing the distance of the wall area of the outlet opening of the fiber guide channel adjacent to the end face of the channel plate tower to the central longitudinal axis of the channel plate, the opening angle between the fiber sliding surface of the spinning rotor and the front area of the lateral surface of the channel plate tower is increased.
  • Feeding of the fibers delivered via the fiber guide channel onto the fiber slide surface of the spinning rotor is positive.
  • Embodiment provided that the channel plate is formed in two parts.
  • the channel plate has a central bearing receptacle in which a channel plate adapter can be exchangeably fixed.
  • the channel plate adapter consists of an insert body, which is matched in shape and size to the bearing holder of the channel plate, and a channel plate tower, which is designed as already explained above.
  • Channel plate adapters that have the modification according to the invention have the highest thread take-off speeds at high speeds
  • Yarn quality can be realized.
  • the advantages of the invention are particularly evident in the case of relatively small spinning rotors. This means that the invention has proven to be particularly advantageous if the diameter of the rotor groove arranged in the rotor cup of the spinning rotor is less than 30 mm.
  • FIG. 1 is a side view of an open-end spinning device with a channel plate arranged in a cover element, in which a channel plate adapter is interchangeably arranged in a central bearing receptacle,
  • FIG. 2 shows a side view on a larger scale of a channel plate with a channel plate tower modified according to the invention
  • FIG. 3 shows a side view on a larger scale of a channel plate, in which a channel plate adapter is interchangeably arranged in a central bearing receptacle and has a channel plate tower modified according to the invention
  • FIG. 4 shows a side view of a channel plate adapter according to the prior art, the exit opening of a fiber guide channel being shown in a top view
  • 5 shows a side view of a duct plate adapter modified according to the invention, with the outlet opening of a fiber guide duct in a plan view
  • Fig. 7 is a front view of a channel plate adapter according to the present invention.
  • Such spinning devices have a rotor housing 2 in which the spinning cup 26 of a spinning rotor 3 rotates at high speed.
  • the spinning rotor 3 is supported with its rotor shaft 4 in the bearing gusset of a support disk bearing 5, which is preferably free of axial thrust.
  • the spinning rotor 3 is driven by a machine-long tangential belt 6, which is pressed against the rotor shaft 4 by a pressure roller 7.
  • the axial positioning of the rotor shaft 4 in the bearing gusset of the support disk bearing 5 is preferably carried out via a permanent magnetic axial bearing 18.
  • the rotor housing 2 which is open towards the front, is closed during the spinning operation by a pivotably mounted cover element 8.
  • the cover element 8 has a channel plate 27 with a seal 9.
  • the rotor housing 2 is also connected via a suction line 10 to a vacuum source 11, which generates the spinning vacuum required in the rotor housing 2.
  • a channel plate adapter 12 is interchangeably arranged in a central bearing receptacle 34 of the channel plate 27, which, as shown for example in FIG.
  • the outlet opening 31 of a fiber guide channel 14 is arranged in the lateral surface of the channel plate tower 30, which has a cylindrical region 50 and a concavely curved region 60.
  • a cylindrical area is understood to mean a lateral surface section which has parallel lateral lines.
  • an opening roller housing 17 is fixed on the cover element 8, which is rotatably supported to a limited extent about a pivot axis 16, or is integrated into the cover element.
  • the cover element 8 furthermore has rear bearing brackets 19, 20 for mounting an opening roller 21 or a sliver feed cylinder 22.
  • the opening roller 21 is driven in the area of its host ice 23 by a circumferential, machine-long tangential belt 24, while the (not shown) drive of the sliver feed cylinder 22 is preferably carried out via a worm gear arrangement which is connected to a machine-long drive shaft 25.
  • FIG. 2 shows, on a larger scale, a channel plate 27 for closing the rotor housing 2 of an open-end spinning device 1.
  • the channel plate 27 has a channel plate tower 30 modified according to the invention, which when closed
  • Rotor housing 2 is positioned within the rotor cup 26 of a spinning rotor 3.
  • the channel plate tower 30 faces in one
  • Permanent magnetic pins 39 is non-positively lockable.
  • Thread take-off tube 15 established.
  • Sliver opening device connects pneumatically to the rotor housing.
  • the outlet opening 31 of the fiber guide channel 14 lies in
  • Spinning position that is, with the rotor housing 2 closed, opposite a fiber slide surface 40 of the spinning rotor 3 in such a way that the fibers emerging from the fiber guide channel 14 are fed onto the fiber slide surface 40 at a relatively acute angle.
  • the diameter of the rotor groove 41 in the rotor cup 26 of the spinning rotor 3 is preferably less than 30 mm.
  • the duct plate tower 30 is designed, in comparison with the duct plate adapters previously common, which are shown in FIGS Exit opening 31 is lowered relative to the wall region 33 behind the exit opening 31.
  • FIGS. 4 and 6 show a channel plate adapter 12 with a known channel plate tower in side view and in plan view
  • FIGS. 5 and 7 show a channel plate adapter 12 with a channel plate tower 30 modified according to the invention.

Landscapes

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

Abstract

L'invention concerne une plaque à rainure-guide destinée à un dispositif de filature à rotor à bout libéré et servant à fermer un carter de rotor qui peut être mis sous vide pendant le processus de filature et dans lequel tourne un rotor de filature. La plaque à rainure-guide selon l'invention comprend un dôme de plaque à rainure-guide qui s'étend dans le rotor de filature, dans la surface d'enveloppe duquel se trouve l'orifice de sortie d'une rainure-guide de fibre et dans la face frontale duquel peut être fixée une buse de dévidage de fil. Une surface de transition cintrée concave se raccorde à une partie cylindrique de la surface d'enveloppe et le dôme de plaque à rainure-guide présente, à la hauteur du bord du rotor de filature, un diamètre tel qu'une fente annulaire ayant une largeur de 2 mm au maximum se forme entre le rotor de filature et le dôme de plaque à rainure-guide pendant le processus de filature. Selon l'invention, l'orifice de sortie (31) de la rainure-guide de fibre (14) est placé au plus à moitié dans la zone de la surface d'enveloppe cylindrique (50) et sa partie restante se situe dans la zone de la surface de transition cintrée (60). En outre, la zone de paroi (33) de l'orifice de sortie (14) la plus éloignée de la face frontale (42) présente une distance (a) à l'axe longitudinal médian (M) de la plaque à rainure-guide (12) qui est d'au moins 0,5 à 3 mm supérieure à la distance (b) de la zone de paroi (32) de l'orifice de sortie (31) voisine de la face frontale (42) à l'axe longitudinal médian (M).
EP04739736A 2003-08-29 2004-06-09 Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere Expired - Lifetime EP1660708B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10339875A DE10339875A1 (de) 2003-08-29 2003-08-29 Kanalplatte für eine Offenend-Rotorspinnvorrichtung
PCT/EP2004/006228 WO2005031050A1 (fr) 2003-08-29 2004-06-09 Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere

Publications (2)

Publication Number Publication Date
EP1660708A1 true EP1660708A1 (fr) 2006-05-31
EP1660708B1 EP1660708B1 (fr) 2010-08-25

Family

ID=34202209

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04739736A Expired - Lifetime EP1660708B1 (fr) 2003-08-29 2004-06-09 Plaque a rainure-guide pour un dispositif de filature a rotor a bout libere

Country Status (6)

Country Link
US (1) US7181901B2 (fr)
EP (1) EP1660708B1 (fr)
CN (1) CN100469959C (fr)
BR (1) BRPI0413806B1 (fr)
DE (2) DE10339875A1 (fr)
WO (1) WO2005031050A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7749471B2 (en) * 2004-11-30 2010-07-06 Chevron U.S.A. Inc. Reduction of oxides of nitrogen in a gas stream using boron-containing molecular sieve CHA
DE102008050071A1 (de) * 2008-10-01 2010-04-08 Oerlikon Textile Gmbh & Co. Kg Offenend-Rotorspinnvorrichtung
DE102009012045A1 (de) * 2009-03-06 2010-09-09 Oerlikon Textile Gmbh & Co. Kg Offenend-Rotorspinnvorrichtung
CN102704062A (zh) * 2012-06-21 2012-10-03 河北金纺机械制造有限公司 可生产低捻度蓬松纱的抽气式转杯纺纱机
CZ2012591A3 (cs) * 2012-08-30 2014-03-12 Rieter Cz S.R.O. Spřádací ústrojí rotorového dopřádacího stroje
DE102017118390A1 (de) * 2017-08-11 2019-02-14 Saurer Spinning Solutions Gmbh & Co. Kg Offenend-Spinneinrichtung
CN109355751B (zh) * 2018-09-28 2020-07-10 绍兴文理学院 一种基于接触热辊的高强耐磨喷气涡流纺纱线的加工方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636182C2 (de) * 1986-10-24 1995-10-12 Schlafhorst & Co W Spinnaggregat einer OE-Rotorspinnmaschine
DE3704460C2 (de) * 1987-02-13 1993-11-18 Fritz Stahlecker Vorrichtung zum OE-Rotorspinnen
JPH07122172B2 (ja) * 1987-07-31 1995-12-25 株式会社豊田中央研究所 オ−プンエンド精紡機の紡糸ユニット
EP0602229B1 (fr) * 1992-07-01 1997-09-10 Rieter Ingolstadt Spinnereimaschinenbau AG Procede et dispositif de filage a fibre liberee
DE4334485A1 (de) * 1993-10-09 1995-04-13 Schlafhorst & Co W Offenend-Spinnvorrichtung
US5749216A (en) * 1997-03-14 1998-05-12 Spindelfabrik Suessen, Schurr, Stahlecker & Grill Gmbh Open end spinning apparatus
DE19729192A1 (de) 1997-07-09 1999-01-14 Schlafhorst & Co W Offenend-Spinnvorrichtung mit auswechselbarem Kanalplattenadapter
DE10160067A1 (de) * 2001-12-06 2003-06-18 Schlafhorst & Co W Verfahren und Vorrichtung zum Verspinnen textiler Stapelfasern mittels eines Spinnrotors

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005031050A1 *

Also Published As

Publication number Publication date
BRPI0413806B1 (pt) 2014-09-23
BRPI0413806A (pt) 2006-10-17
EP1660708B1 (fr) 2010-08-25
CN100469959C (zh) 2009-03-18
US20060225401A1 (en) 2006-10-12
CN1846021A (zh) 2006-10-11
WO2005031050A1 (fr) 2005-04-07
US7181901B2 (en) 2007-02-27
DE10339875A1 (de) 2005-03-24
DE502004011586D1 (de) 2010-10-07

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