EP0311946A1 - Procédé et dispositif pour enlever des fibres d'un cylindre peigneur d'une unité de filage d'un métier à filer à bout libre - Google Patents

Procédé et dispositif pour enlever des fibres d'un cylindre peigneur d'une unité de filage d'un métier à filer à bout libre Download PDF

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Publication number
EP0311946A1
EP0311946A1 EP88116767A EP88116767A EP0311946A1 EP 0311946 A1 EP0311946 A1 EP 0311946A1 EP 88116767 A EP88116767 A EP 88116767A EP 88116767 A EP88116767 A EP 88116767A EP 0311946 A1 EP0311946 A1 EP 0311946A1
Authority
EP
European Patent Office
Prior art keywords
fiber
spinning
air
roller
fibers
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.)
Withdrawn
Application number
EP88116767A
Other languages
German (de)
English (en)
Inventor
Václav Dipl.-Ing. Safár
Jaromir Pelc
Jarmila Maliková
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.)
Elitex Zavody Textilniho
Elitex Koncern Textilniho Strojirenstvi
Original Assignee
Elitex Zavody Textilniho
Elitex Koncern Textilniho Strojirenstvi
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 Elitex Zavody Textilniho, Elitex Koncern Textilniho Strojirenstvi filed Critical Elitex Zavody Textilniho
Publication of EP0311946A1 publication Critical patent/EP0311946A1/fr
Withdrawn legal-status Critical Current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
    • D01H4/38—Channels for feeding fibres to the yarn forming region
    • 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

Definitions

  • the invention relates to a method for removing the fibers from the discharge roller of the spinning unit of an open-end spinning machine, particularly with the vertical axis of the discharge roller.
  • the fiber stream should be directed to the upper part of the working width and introduced through the guide into the spinning chamber.
  • Significant progress has been made by using an angled separating edge and by bending the top wall of the fiber guide diagonally upwards. As a result, undesirable turbulence in the flow was reduced and the cross section of the input part of the fiber guide could be increased to a level which is adequate for the amount of air flowing and the underpressure used in the spinning chamber.
  • the object of the invention is to solve these problems and to eliminate the disadvantages of the known designs and devices.
  • the principle of the method according to the invention is that before the removal zone of the fibers from the serrated surface of the ejection roller, the flowing mixture of air and fibers is guided between two air streams flowing outside the working width of the serrated surface, at least that along the lower outside part of the width the serrated surface of the ejection roller, the air flow in the zone of the fiber take-off is directed obliquely upwards along the separating edge of the input part of the fiber design.
  • Either an obliquely oriented guide surface or another air flow can be used for this guidance of the air flow guided along the lower outside work part. which is fed in front of the separation edge and is directed obliquely upwards along it.
  • the effect of the invention can be further enhanced if the amount of air flowing in the lower part of the working width of the ejection roller is greater than the amount of air flowing in its upper part in the zone of fiber removal. The greatest effect arises when the relatively largest amount of air, based on a unit of width, passes through the lower outworking part of the transport zone. or transport zone flows and this enlarged air flow is directed obliquely upwards along the separating edge.
  • the advantage of the method according to the invention is the reliability of the fiber take-off, which contributes to the stability of the spinning process and to the reduction in the number of defects in the yarn produced.
  • the device is advantageous due to its simple construction and also in that the oblique current orientation is more advantageous for the fiber removal and for increasing the service life of the separating edge, which is otherwise subjected to intensive wear by the flowing fibers, so that after a certain operating time this part the spinning unit must be replaced.
  • the spinning unit shown in FIG. 1 has a feed device, formed by a feed roller 1 rotating in the direction of the arrow 2, which conveys the sliver 3 against which a link 4, which can be pivoted about a pin 5, presses by the action of a spring 6.
  • the feed roller 1 is associated with a dissolving or ejecting roller 7 rotating at high speed in the direction of the arrow 8.
  • a tangential channel 9 for discharging impurities in the direction of arrow 10 is in flow connection with a channel 11 for the air supply in the direction of arrow 12 from the surroundings.
  • a separation zone 200 of the fibers begins from the serrated surface of the opening roller 7, which ends in a separation edge 14 at the input part of the fiber version 15.
  • the fibers are then directed further in the direction of arrow 16 against the sliding wall 17 of the spinning rotor 18 fastened on a shaft 19.
  • the spun yarn 21 is led out of the collecting trough 20 through an opening 22 out of the rotor 18 and wound onto a spool (not shown).
  • the line A - A indicates the constriction between the wall 13 and the Surface of the opening roller 7.
  • the maximum working width of the opening roller 7 is determined by two edge flanges 71 and 72, which are shown in FIG. 5.
  • the width H1 of the fiber band 3 is determined by the width of a cutout 99 in the free end part of the pivoting member 4 and is always smaller than the maximum working width of the opening roller 7. Through this opening 99, the fibers flow in the air flow to the effective conveying area 100 of the opening roller 7, whereby their width can increase slightly to the value H in the separation zone 200.
  • the air flow is identified by the arrows 23 and outside by the arrows 24 and 25.
  • the air flow designated by arrow 25 (FIG. 2) is directed through a guide wall 26 which merges into a separating card 27 in the section of working width H.
  • the fiber design 15 opens into the spinning chamber in the rotor 18.
  • a guide wall 261 is provided against the air flow 25 below the working width H of the opening roller 7. which merges into the separating edge 27 in the region of the working width H.
  • a further air flow 251 is fed through a channel 250 arranged in front of the separating edge 27.
  • the opening roller 7 is presented with a sliver in the working width H1, the working width H in the separation zone 200 also Fibrous removal of the serrated surface of the opening roller 7 is analog.
  • the total width of the opening roller 7 is determined by the inner clear width between the edge flanges 71, 72.
  • the profile is enlarged in the lower part by the bevel 131 of the wall 13.
  • the height of the wall 13 is plotted in the Y-axis and the amount of flowing air in the X-axis.
  • the fiber decrease in the exemplary embodiments according to FIGS. 1 to 6 is such that the loosened fibers form a flow mixture between the air streams 24, 25 in the region of the working width H with the air.
  • the total current must be directed upwards into the narrow fiber design 15 into the relatively small spinning rotor 18.
  • the lower airflow 25 must be deflected relatively most.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
EP88116767A 1987-10-12 1988-10-10 Procédé et dispositif pour enlever des fibres d'un cylindre peigneur d'une unité de filage d'un métier à filer à bout libre Withdrawn EP0311946A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CS877329A CS270298B1 (en) 1987-10-12 1987-10-12 Device for fibres loosening and their guiding into spinning chamber
CS7329/87 1987-10-12

Publications (1)

Publication Number Publication Date
EP0311946A1 true EP0311946A1 (fr) 1989-04-19

Family

ID=5422238

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116767A Withdrawn EP0311946A1 (fr) 1987-10-12 1988-10-10 Procédé et dispositif pour enlever des fibres d'un cylindre peigneur d'une unité de filage d'un métier à filer à bout libre

Country Status (2)

Country Link
EP (1) EP0311946A1 (fr)
CS (1) CS270298B1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998404A (en) * 1988-12-23 1991-03-12 Savio S.P.A. Method and device for removing deteriorated fibres during yarn rejoining in an open-end spinning machine
US5095689A (en) * 1988-12-23 1992-03-17 Savio, S.P.A. Method and device for rejoining yarn with high efficiency in an open-end spinning machine
CN106283287A (zh) * 2016-10-21 2017-01-04 东华大学 一种高强力纱线的转杯纺纱方法
CN106435867A (zh) * 2016-10-21 2017-02-22 东华大学 一种消除涡流的转杯纺纱器
CN106435866A (zh) * 2016-10-21 2017-02-22 东华大学 一种消除涡流的转杯纺纱器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1930760A1 (de) * 1968-08-10 1970-02-19 Vyzk Ustav Bavlnarsky Eine die Spinnturbine einschliessende Vorrichtung zur Foerderung des Fasergutes in Spinneinheiten beim spindellosen Spinnverfahren
FR2130507A1 (fr) * 1971-03-26 1972-11-03 Elitex Zavody Textilniho
FR2357665A1 (fr) * 1976-07-08 1978-02-03 Vyzk Ustav Bavlnarsky Procede et dispositif pour transporter la matiere fibreuse dans une unite a rotor de filage de fibres a extremite ouverte
DE2748330A1 (de) * 1976-12-17 1978-06-29 Vyzk Ustav Bavlnarsky Offen-end-rotorspinneinheit
DE2800795A1 (de) * 1978-01-09 1979-07-19 Schlafhorst & Co W Faserspeisekanal fuer eine rotorspinnmaschine
GB2192010A (en) * 1986-06-27 1987-12-31 Vyzk Ustav Bavlnarsky Open-end rotor spinning unit

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1930760A1 (de) * 1968-08-10 1970-02-19 Vyzk Ustav Bavlnarsky Eine die Spinnturbine einschliessende Vorrichtung zur Foerderung des Fasergutes in Spinneinheiten beim spindellosen Spinnverfahren
FR2130507A1 (fr) * 1971-03-26 1972-11-03 Elitex Zavody Textilniho
FR2357665A1 (fr) * 1976-07-08 1978-02-03 Vyzk Ustav Bavlnarsky Procede et dispositif pour transporter la matiere fibreuse dans une unite a rotor de filage de fibres a extremite ouverte
DE2748330A1 (de) * 1976-12-17 1978-06-29 Vyzk Ustav Bavlnarsky Offen-end-rotorspinneinheit
DE2800795A1 (de) * 1978-01-09 1979-07-19 Schlafhorst & Co W Faserspeisekanal fuer eine rotorspinnmaschine
GB2192010A (en) * 1986-06-27 1987-12-31 Vyzk Ustav Bavlnarsky Open-end rotor spinning unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 9, no. 271 (C-311) 1994 29 Oktober 85, & JP-A-60 119230 (TOYODA CHUO KENKYUSHO K.K.) *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4998404A (en) * 1988-12-23 1991-03-12 Savio S.P.A. Method and device for removing deteriorated fibres during yarn rejoining in an open-end spinning machine
US5095689A (en) * 1988-12-23 1992-03-17 Savio, S.P.A. Method and device for rejoining yarn with high efficiency in an open-end spinning machine
CN106283287A (zh) * 2016-10-21 2017-01-04 东华大学 一种高强力纱线的转杯纺纱方法
CN106435867A (zh) * 2016-10-21 2017-02-22 东华大学 一种消除涡流的转杯纺纱器
CN106435866A (zh) * 2016-10-21 2017-02-22 东华大学 一种消除涡流的转杯纺纱器

Also Published As

Publication number Publication date
CS732987A1 (en) 1989-11-14
CS270298B1 (en) 1990-06-13

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