US3922839A - Device for preventing accumulation of fibers in a spinning machine - Google Patents

Device for preventing accumulation of fibers in a spinning machine Download PDF

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Publication number
US3922839A
US3922839A US471776A US47177674A US3922839A US 3922839 A US3922839 A US 3922839A US 471776 A US471776 A US 471776A US 47177674 A US47177674 A US 47177674A US 3922839 A US3922839 A US 3922839A
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United States
Prior art keywords
groove
roller
combing roller
feed roller
free lateral
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Expired - Lifetime
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US471776A
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English (en)
Inventor
Waichi Sakurai
Sadanobu Yoshie
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Daiwa Boseki KK
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Daiwa Boseki KK
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Application filed by Daiwa Boseki KK filed Critical Daiwa Boseki KK
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    • 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
    • D01H4/36—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls with means for taking away impurities

Definitions

  • the present invention generally relates to a ringless spinning machine having a combing roller for combing a sliver fed from a feed roller and a channel for feeding the combed fibers into a rotary spinning chamber from which a spun yarn is withdrawn, and more particularly relates to a device for preventing accumulation of tibers in the space between the free lateral surfaces of the feed and combing rollers and the inner surface of a closure plate covering the feed roller and combing roller.
  • the subpressure produced in the rotary spinning chamber rotating at high speed is utilized to introduce the fibers combed by the combing roller provided with a number of saw teeth into the spinning chamber together with air through the channel.
  • free lateral surfaces denotes the lateral surfaces of the feed roller and the combing roller which are free from shafts of the rollers and bearings for the shafts.
  • FIG. 1 is a perspective view of a closure plate provided with a groove on the inner surface thereof;
  • FIGS. 2 to 5 are plan views ofa ringless spinning machine partially in section with the closure plate being removed and showing various shapes and positions of the groove provided in the closure plate.
  • the reference numeral 1 designates a feed roller which cooperates with a presser 2 to feed a sliver to a combing roller 3.
  • the feed roller The feed roller.
  • the reference numeral 6 designates a body'in which the feed roller 1 and the combing roller 3 are arranged in juxtaposed relation.
  • body 6 there is formed a channel 7 for feeding the combed fibers into a rotary spinning chamber 8.
  • the spinning chamber 8 is provided with a plurality of evacuating holes 9 so that when it is rotated at a high speed, the air inside the spinning chamber 8 is evacuated through evacuating holes 9 as shown by the arrows 10, thus a subpressure is produced in the spinning chamber 8. This subpressure produces an air current in the channel 7 as shown by.
  • the reference numeral 12 designates a duct which conducts the air as exhausted from the spinning chamber 8 to a main duct (not shown in the drawings) provided with a blower (also not shown in the drawings) which promotes the evacuation of the spinning chamber 8. Covering the inlet end of the channel 7, there is provided a filter 13 which prevents dust or floating short fibers from entering into the channel 7.
  • a closure plate 14 (FIG. 1) is removably mounted on the surface 15 of body 6 to cover the free lateral surfaces 16 and 17 of the feed roller 1 and the combing roller 3, respectively.
  • the reference numeral 18 designates a spun yarn withdrawing tube, 19 a feeler which normally contacts with the spun yarn after it has left the tube 19 to detect the presence of the yarn, 20 a magnet mounted on the feeler l9, and 21 a switch which is operated by means of the magnet 20 when the feeler 19 is allowed to incline due to the absence of the spun yarn.
  • the switch 21 turns on a yarn breakage indicating lamp (not shown in the drawings) when the yarn is absent or broken and/or effects other necessary functions.
  • a groove 22 is formed on the inner surface 23 of closure plate 14 in opposition to at least portions of free lateral surface 16 and 17 of the feed roller 1 and combing roller 3, respectively.
  • the groove 22 of FIG. 1 is so shaped and positioned that it'covers the entire free lateral surface 16 of the feed roller I and approximately half of the free lateral surface 17 of the combing roller 3 as shown by dot and dash line in FIG. 2 when the closure plate 14 is mounted in position.
  • one end 24 of the groove 22 is communicated to an air suction source.
  • an air suction source for this purpose, in the embodiment of FIG. 2, there is formed a communication opening 25 in the surface of the body 6 at the inlet portion of the channel 7 and the one end 24 of the groove 22 is located in opposition to opening 25.
  • the other end 26 of the groove 22 is opened in the peripheral outer surface of the closure plate 14. It is preferred to provide a filter 27 covering the other end 26 of the groove 22.
  • one end of the groove 22 is communicated to the inlet portion of channel 7, and when the rotary spinning chamber 8 is rotated at a high speed the air in the groove 22 is sucked into the channel 7 through communication opening 25, thus an air current is produced in groove 22 as shown by the arrows 28.
  • This air current entrains the short fibers and dust which have entered into the space between the free lateral surfaces 16 and 17 of the feed roller 1 and the combing roller 3, respectively, into the channel 7 and, therefore, the accumulation of the fibers and dust on the free lateral surfaces 16 and 17 of the feed roller 1 and the combing roller 3 and in such space is effectively prevented.
  • the direction of the air current produced in the groove 22 is substantially the same as the direction of an air current produced on the free lateralsurface 17 of the combing roller 3 by the rotation of the same. This enhances the fiber entraining function of the air current produced in the groove 22.
  • the air current produced on the free lateral surface 17 of the combing roller 3 is powerful compared with the power of the air current produced in the groove 22, since the combing roller 3 is rotated at a considerably high speed. Therefore, it is not advantageous that the groove 22 covers substantially more than half of the free lateral surface 17 of the combing roller 3 whereat the two air currents would at least partially cancel each other. Furthermore, since the air current produced by the combing roller 3 is powerful as described above, the fibers and dust entered into that portion of the space which is not covered by the groove 22 are entrained by such air current into that portion of the space which is covered by the gorrove 22. Therefore, it is preferable and sufficient that the groove 22 covers approximately half of the free lateral surface 17 of the combing roller 3.
  • the groove 22 covers substantially the entire free lateral surface 16 of the feed roller 1.
  • the groove 22 covers approximately half of the free lateral surface 17 of the combing roller 3 and substantially the entire free lateral surface 16 of the feed roller 1 as well as substantially the entire presser 2. Furthermore, in this embodiment, the other end 26 of the groove 22 is opened in the front portion of the peripheral surface of the closure plate 14. This makes it easier to intake airfrom the outside into the groove 22 than in the embodiment of FIG. 2, since in the embodiment of FIG. 3 the intake of air is not impeded by anything except filter 27, if provided, while in the embodiment of FIG. 2 the intake of the air is impeded by an adjacent spinning machine which is spaced closely to the spinning machine in question. Furthermore, in this embodiment the accumulation of the short fibers and dust on the presser 2 is prevented.
  • FIG. 4 A further embodiment of the present invention is shown in FIG. 4.
  • the other end 26 of the groove 22 is located in opposition to the feed roller l and the presser 2 without opening in the peripheral surface of the closure plate 14.
  • the air flows from the space between the feed roller 1 and the presser 2 into groove 22.
  • This embodiment is suitable for use in the case wherein a small air current is sufficient to prevent accumulation of the fibers in said space.
  • one end 24 of the groove 22 is communicated to the inlet portion of the channel 7.
  • One such embodiment is shown in FIG. 5.
  • one end 24 of the groove 22 is opened in the peripheral surface of the closure plate 14 and communicated to the duct 12 through a pipe 29.
  • a pipe 29 Such arrangement brings about a special advantage that the short fibers and dust which have been entrained by the air current produced in the groove 22 are exhausted directly into the duct 12 without being fed into the rotary spinning chamber 8.
  • the entrained fibers have been contaminated by friction with metal bodies of the various elements of the spinning machine, there is not the possibility that they will lower the quality of the spun yarn.
  • the short fibers and/or dust which have entered into the space between the free lateral surfaces of the feed and combing rollers and the inner surface of the closure plate are immediately and positively removed from such space by providing a groove on the inner surface of the closure plate extending in opposition to at least portions of the free lateral surfaces of the rollers and by communicating one end of the groove to an air suction source to produce an air current in the groove.
  • a fiber spinning machine of the type including a body having rotatably mounted therein a fiber feed roller and a combing roller; said feed roller and combing roller having free lateral surfaces; a closure plate attached to said body and having an inner surface forming a space with said free lateral surfaces of said feed roller and combing roller; a rotary spinning chamber; a duct connected to said spinning chamber for exhausting air therefrom; and a channel extending through said body to a doffing area adjacent the periphery of said combing roller and to said spinning chamber for feeding fibers doffed from said combing roller at said doffing area to said spinning chamber; the improvement comprising:
  • said means comprising a groove formed in said inner surface of said. closure plate, said groove extending in opposition to at least portions of said free lateral surfaces of said feed roller and combing roller, said groove having a first end communicating with said channel at a position thereof upstream from said doffing area, and said groove having a second end communicating with ambient atmosphere, whereby upon operation of said machine an air current is formed in said groove from said second end thereof to said first end thereof.
  • a fiber spinning machine of the type including a body having rotatably mounted therein a fiber feed roller and a combing roller; said feed roller and combing roller having free lateral surfaces; a closure plate attached to said body and having an inner surface forming a space with said free lateral surfaces of said feed roller an combing roller; a rotary spinning chamber; a duct connected to said spinning chamber for exhausting air therefrom; and a channel extending through said body to a doffing area adjacent the periphery of said combing roller and to said spinning chamber for feeding fibers doffed from said combing roller at said doffing area to said spinning chamber; the improvement comprising:
  • said means comprising a groove formed in said inner surface of said closure plate, said groove extending in opposition to at least portions of said free lateral surfaces of said feed roller and combing roller, said groove having a first end communicating with said duct, and said groove having a second end communicating with ambient atmosphere, whereby upon operation of said machine an air current is formed in said groove from said second end thereof to said first end thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US471776A 1973-05-25 1974-05-20 Device for preventing accumulation of fibers in a spinning machine Expired - Lifetime US3922839A (en)

Applications Claiming Priority (1)

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JP48059029A JPS505629A (en, 2012) 1973-05-25 1973-05-25

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JP (1) JPS505629A (en, 2012)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067182A (en) * 1975-10-03 1978-01-10 Vyzkumny Ustav Bavlnarsky Method of and apparatus for separating staple fibers from a fibrous sliver
US4183201A (en) * 1976-12-24 1980-01-15 Fritz Stahlecker Open-end spinning machine with means for catching and removing separated debris
US4278259A (en) * 1978-11-06 1981-07-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for sealing spinning rotor in an open-end spinning apparatus
US4339910A (en) * 1979-08-03 1982-07-20 Schubert & Salzer Open-end spinning machine
DE3151330A1 (de) * 1980-12-29 1982-08-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi Spinneinheit fuer eine offen-end-spinnmaschine
US4426840A (en) 1980-12-29 1984-01-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Open-end spinning machine
US4459800A (en) * 1981-05-26 1984-07-17 Hans Stahlecker Method of feeding individual fibers to a spinning rotor and device for carrying out the method
DE3417567A1 (de) * 1983-05-20 1984-11-29 Výzkumný ústav bavlnářský, Ustí nad Orlicí Verfahren zum aufloesen von textilfasern an offenendspinneinheiten und vorrichtung zur durchfuehrung dieses verfahrens
DE3604919A1 (de) * 1985-01-22 1987-08-27 Vyzk Ustav Bavlnarsky Faseraufloesevorrichtung fuer offen-end-rotorspinnmaschinen
US4691509A (en) * 1984-01-25 1987-09-08 Fritz Stahlecker Open-end friction spinning machine
US5454219A (en) * 1993-04-02 1995-10-03 W. Schlafhorst Ag & Co. Means for providing air flow in a trash removal chamber of an open-end spinning unit
US5481862A (en) * 1993-10-09 1996-01-09 W. Schlafhorst Ag & Co. Pneumatically operated debris removal device for an open-end spinning device
US5497610A (en) * 1993-12-04 1996-03-12 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for pneumatic feeding of fibers to the fiber collection surface of an open-end spinning element
US5809766A (en) * 1996-05-08 1998-09-22 Stahlecker; Gerd Device for cleaning fiber material in an open-end spinning aggregate

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4912153U (en, 2012) * 1972-05-09 1974-02-01

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381463A (en) * 1966-02-24 1968-05-07 Vyzk Ustav Bavlnarsky Treating of fibrous materials
US3624997A (en) * 1968-11-21 1971-12-07 Vyzk Ustav Bavlnarsky Self-cleaning combing roller arrange-ment for a suction spinning chamber
US3750380A (en) * 1970-12-22 1973-08-07 Elitex Zavody Textilniho Device for separating fibrous material
US3763641A (en) * 1971-03-24 1973-10-09 Uyzkumny Ustav Bavinarsky Method and apparatus for removing impurities released from staple fibers
US3777466A (en) * 1969-05-16 1973-12-11 Vyzk Ustav Bavlnarsky Method of removing impurities and similar matter from staple fibres in ringless spinning and device for performing said method
US3792575A (en) * 1971-03-24 1974-02-19 Vy Bavlnarsky Method of and apparatus for separating impurities from fibers during cleaning of the fibers
US3797218A (en) * 1969-03-20 1974-03-19 Schubert & Salzer Maschinen Method and apparatus for spinning sliver
US3826071A (en) * 1971-06-21 1974-07-30 Zinser Textilmaschinen Gmbh Apparatus for opening slivers of textile fibers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381463A (en) * 1966-02-24 1968-05-07 Vyzk Ustav Bavlnarsky Treating of fibrous materials
US3624997A (en) * 1968-11-21 1971-12-07 Vyzk Ustav Bavlnarsky Self-cleaning combing roller arrange-ment for a suction spinning chamber
US3797218A (en) * 1969-03-20 1974-03-19 Schubert & Salzer Maschinen Method and apparatus for spinning sliver
US3777466A (en) * 1969-05-16 1973-12-11 Vyzk Ustav Bavlnarsky Method of removing impurities and similar matter from staple fibres in ringless spinning and device for performing said method
US3750380A (en) * 1970-12-22 1973-08-07 Elitex Zavody Textilniho Device for separating fibrous material
US3763641A (en) * 1971-03-24 1973-10-09 Uyzkumny Ustav Bavinarsky Method and apparatus for removing impurities released from staple fibers
US3792575A (en) * 1971-03-24 1974-02-19 Vy Bavlnarsky Method of and apparatus for separating impurities from fibers during cleaning of the fibers
US3826071A (en) * 1971-06-21 1974-07-30 Zinser Textilmaschinen Gmbh Apparatus for opening slivers of textile fibers

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067182A (en) * 1975-10-03 1978-01-10 Vyzkumny Ustav Bavlnarsky Method of and apparatus for separating staple fibers from a fibrous sliver
US4183201A (en) * 1976-12-24 1980-01-15 Fritz Stahlecker Open-end spinning machine with means for catching and removing separated debris
US4278259A (en) * 1978-11-06 1981-07-14 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Device for sealing spinning rotor in an open-end spinning apparatus
US4339910A (en) * 1979-08-03 1982-07-20 Schubert & Salzer Open-end spinning machine
DE3151330A1 (de) * 1980-12-29 1982-08-12 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kariya, Aichi Spinneinheit fuer eine offen-end-spinnmaschine
US4426840A (en) 1980-12-29 1984-01-24 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Open-end spinning machine
US4459800A (en) * 1981-05-26 1984-07-17 Hans Stahlecker Method of feeding individual fibers to a spinning rotor and device for carrying out the method
DE3417567A1 (de) * 1983-05-20 1984-11-29 Výzkumný ústav bavlnářský, Ustí nad Orlicí Verfahren zum aufloesen von textilfasern an offenendspinneinheiten und vorrichtung zur durchfuehrung dieses verfahrens
US4691509A (en) * 1984-01-25 1987-09-08 Fritz Stahlecker Open-end friction spinning machine
DE3604919A1 (de) * 1985-01-22 1987-08-27 Vyzk Ustav Bavlnarsky Faseraufloesevorrichtung fuer offen-end-rotorspinnmaschinen
US5454219A (en) * 1993-04-02 1995-10-03 W. Schlafhorst Ag & Co. Means for providing air flow in a trash removal chamber of an open-end spinning unit
US5481862A (en) * 1993-10-09 1996-01-09 W. Schlafhorst Ag & Co. Pneumatically operated debris removal device for an open-end spinning device
US5497610A (en) * 1993-12-04 1996-03-12 Rieter Ingolstadt Spinnereimaschinenbau Ag Process and device for pneumatic feeding of fibers to the fiber collection surface of an open-end spinning element
US5809766A (en) * 1996-05-08 1998-09-22 Stahlecker; Gerd Device for cleaning fiber material in an open-end spinning aggregate

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JPS505629A (en, 2012) 1975-01-21

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