US3696605A - Ringless spinning machine - Google Patents

Ringless spinning machine Download PDF

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Publication number
US3696605A
US3696605A US876918A US3696605DA US3696605A US 3696605 A US3696605 A US 3696605A US 876918 A US876918 A US 876918A US 3696605D A US3696605D A US 3696605DA US 3696605 A US3696605 A US 3696605A
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US
United States
Prior art keywords
combing roller
air intake
intake channel
fibers
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.)
Expired - Lifetime
Application number
US876918A
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English (en)
Inventor
Takashi Morikawa
Sotomatsu Higake
Mitsugu Sumi
Tohoru Urifu
Manabu Yamamoto
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.)
Toyota Industries Corp
Daiwa Boseki KK
Original Assignee
Daiwa Boseki KK
Toyoda Automatic Loom Works Ltd
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 Daiwa Boseki KK, Toyoda Automatic Loom Works Ltd filed Critical Daiwa Boseki KK
Application granted granted Critical
Publication of US3696605A publication Critical patent/US3696605A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • D01H4/32—Arrangements for separating slivers into fibres; Orienting or straightening fibres, e.g. using guide-rolls using opening rollers
    • 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

  • ABSTRACT A ringless spinning machine which has an air intake channel communicating with a rotatable spinning chamber operating at subatmospheric pressure.
  • a combing roller having a plurality of saw teeth thereon as a part of the periphery exposed in the air intake channel so that air flowing therethrough can strip fibers from the peripheral surface of the combing roller.
  • junction defined by the wall surface on the fiber transfer side of the air intake channel at the forward end of the opening through which the combing roller projects and the wall surface of the space within which the combing roller rotates is in the form of a gently curved surface or a flat surface.
  • a filter member having a filtering area larger than the area of the inlet end of the air intake channel is provided at said inlet end.
  • the present invention relates to an improvement in a ringless spinning machine of the type having a rotatable spinning chamber working under subatmospheric pressure, a feed roller for fibrous material, a combing roller for opening and transferring fed fibrous material and an air intake channel communicating with the spinning chamber.
  • the improvement is intended to increase the rate of transfer of fibers from the peripheral surface of the combing roller to the spinning chamber and to prevent the entry of short fibers, dust and other impurities through the inlet of the air intake channel communicating with the ambient atmosphere thereby to improve the quality of yarn being spun.
  • the present invention has as the principal object remedying the two drawbacks described above, and provides a ringless spinning machine comprising an air intake channel communicating with a rotatable spinning chamber working under subatmospheric pressure, and a combing roller provided with a number of saw teeth and having the peripheral surface thereof partly exposed to said air intake channel to cause fibers to be stripped from the peripheral surface of the combing roller by means of air flow, said ringless spinning machine being characterized in that the front end of a junction defined by the wall surface on the fiber transfer side of the air intake channel adjacent the opening through which the peripheral surface of the combing roller is exposed, and by the wall surface of the main body enclosing the peripheral surface of the combing roller is in the form of a gently curved surface or a flat surface, and that a filter member having a filtering area larger than the area of the opening at the inlet of the air intake channel is provided at said inlet.
  • FIG. 1 is a cross-section of a spinning part of a conventional ringless spinning machine
  • FIG. 2 is a cross-section of the fiber stripping part shown in FIG. 1;
  • FIGS. 3 and 4 are cross-sections each showing an improved stripping part according to the present invention.
  • FIGS. 5, 6 and 7 are cross-sections each showing a filter member at the inlet of an air intake channel according to the present invention.
  • FIG. 8 is a front view of the box-type filter shown in FIG. 7;
  • FIG. 9 is a cross-section taken along the line A-A of FIG. 8.
  • FIG. 10 is a perspective view showing the box-type filter shown in FIG. 8 removably attached to a spinning unit of a ringless spinning machine.
  • a ringless spinning machine such as shown in FIG. 1 which comprises a rotatable spinning chamber 1 working under subatmospheric pressure, an air intake channel 3 communicating with said spinning chamber 1 and having an air intake opening 2 on the ambient atmosphere side, a combing roller 5 provided with a number of saw teeth 4 and having the peripheral surface thereof partly exposed to said air intake channel through an opening into said channel, and a feed roller 7 for feeding a fibrous material 6.
  • a ringless spinning machine such as shown in FIG. 1 is known which comprises a rotatable spinning chamber 1 working under subatmospheric pressure, an air intake channel 3 communicating with said spinning chamber 1 and having an air intake opening 2 on the ambient atmosphere side, a combing roller 5 provided with a number of saw teeth 4 and having the peripheral surface thereof partly exposed to said air intake channel through an opening into said channel, and a feed roller 7 for feeding a fibrous material 6.
  • the fiber stripping part for stripping fibers from the peripheral surface of the combing roller 5 in the spinning part of such ringless spinning machine has a junction 11 in the form of a knife edge, said junction being defined by the wall surface 8 on the fiber feed side of the air intake channel adjacent to and on the downstream side of the opening through which the peripheral surface of said combing roller 5 is exposed, and by the wall surface 10 of a main body 9 enclosing the peripheral surface of the combing roller 5.
  • the extent to which a part of the peripheral surface of the combing roller 5 is allowed to enter the air intake channel 3 is limited, and the distance between the front end of the knife edgeshaped junction 11 and the summit of the combing roller 5 exposed to the air intake channel 3, where fibers are subjected to substantial stripping action, is very short. As a result, there occurs a phenomenon in which the edge of the junction 11 becomes worn and scratched as a result of contact with fibers being transferred at high speed.
  • Such knife edge-shaped junction 11 has been considered desirable for carrying out the function of stripping fibers from the peripheral surface of the combing roller 5, but in practice it is still insufficient in that a part of the fibers on the combing roller is fed back to the feed roller 7; it has been found that the amount of material fed back is as large as 8 15 percent.
  • a first object of the invention is to remedy the aforementioned trouble.
  • a ringless spinning machine having spinning parts such as shown in FIG. 1, characterized in that as shown in FIGS. 3 and 4 the front end of the junction 11 defined by the wall surface 8 on the fiber feed side of an air intake channel 3 adjacent to and on the downstream side of the opening through which the peripheral surface of a combing roller 5 is exposed, and by the wall surface 10 of a main body 9 enclosing the peripheral surface of the combing roller 5 is in the form of a gently curved surface 12 or a fiat surface 13 substantially orthogonal to a tangent to the peripheral surface of the combing roller 5.
  • the front end of the junction 11 at a position where fibers are stripped from the peripheral surface of the combing roller for transfer to the groove 3, has such a gently curved surface 12 or flat surface 13, the circumferential air flow due to the high speed rotation of the combing roller 5 impinges against the curved surface 12 or flat surface 13 of said junction 11, thereby creating a back pressure in a direction opposite to the direction of rotation of the combing roller 5, which back pressure acts on the saw teeth 4 of the combing roller 5 exposed to the air intake channel 3 to raise the fibers gripped by the saw teeth 4 so that the stripping of the fibers under the action of a suction force exerted by the rotatable spinning chamber 1 is accelerated, resulting in a remarkable increase in the rate of stripping and transfer of fibers, and the amount of fibers fed back to the feed roller 7 can be reduced almost to zero.
  • the junction 1 1 according to the invention is not a knife edge but the curved surface 12 or flat surface 13, which has an appreciable thickness, as described above, and clashing of fibers against said surfaces 12 and 13 can be avoided by the influence of said back pressure, so that damage to said surfaces 12 and 13 is reduced, thus assuring a long service life.
  • the aforementioned merit of sharp reduction in the amount of return fibers makes uniform the amount of fibers transferred to the spinning chamber 1 and prevents unevenness of the yarn.
  • FIGS. 1 and 5-10 Reference will now be made to FIGS. 1 and 5-10.
  • a ringless spinning machine known per se such as shown in FIG. 1 and particularly a spinning apparatus operating on the principle of rotating a spinning chamber 1 with an air discharge opening 15 at high speed, utilizing the resultant internal subatmospheric pressure to introduce fibers from a combing roller 5 to an air intake channel 3, and transferring fibers to the spinning chamber 1 by means of air currents flowing into the spinning chamber from the ambient atmosphere, the transfer air which transfers fibers into the spinning chamber 1 as described above is taken in from a room in which the spinning machine is installed. Therefore, fly, dust and other impurities (hereinafter referred to simply as impurities) floating in the air in the room are sucked together with the air into the spinning chamber 1 through the air intake channel 3.
  • impurities fly, dust and other impurities
  • a second object of the invention is to eliminate the aforementioned drawback. According to the invention,
  • FIGS. 5 and 6 show examples in which a filter member 20 made of a continuous foam body is attached to the inlet 2 of the air intake channel 3.
  • FIGS. 7 10 show an example in which a filter member is box-shaped and removably attached to the inlet 2 of said channel 3.
  • the filter is a metallic net 21 of fine mesh which may be reinforced by a frame 22 and supported by guides 23 and 24 so that it can be easily exchanged for a new one.
  • the filtering area is much larger than the area of the opening at the inlet of the air intake channel, a long period of use is assured. Further, because of the detachable mounting system, cleaning and exchange can be readily carried out if clogging of the mesh should occur.
  • the occurrence of breakage of yarn and unevenness of yarn is less than that in the conventional apparatus of this kind and spun yarn of more uniform quality can be obtained.
  • a combing roller In a ringless spinning machine having a spinning chamber working under subatmospheric pressure, a combing roller, a body having an air intake channel communicating with said spinning chamber and enclosing said combing roller, said combing roller having saw teeth and said channel having an opening through which part of the periphery of the combing roller is exposed so that fibers are stripped from the peripheral surface of the combing roller, that improvement comprising the junction between the portion of the body facing and enclosing the periphery of the combing roller and the portion of the wall of the air intake channel on the downstream side of the opening through which the combing roller is exposed being a flat surface extending generally transverse to the circumference of the combing roller.
  • a combing roller In a ringless spinning machine having a spinning chamber working under subatmospheric pressure, a combing roller, a body having an air intake channel communicating with said spinning chamber and enclosing said combing roller, said combing roller having saw teeth and said channel having an opening through which part of the periphery of the combing roller is exposed so that fibers are stripped from the peripheral surface of the combing roller, that improvement comprising the junction between the portion of the body facing and enclosing the periphery of the combing roller and the portion of the wall of the air intake channel on the downstream side of the opening through which the combing roller is exposed being a flat surface extending generally transverse to the circumference of the combing roller and a filter member in a form of a box structure removably attached over the inlet end of said air intake channel and having a filtering area larger than the area of said inlet opening for filtering the air entering said air intake channel.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Preliminary Treatment Of Fibers (AREA)
US876918A 1968-11-27 1969-11-14 Ringless spinning machine Expired - Lifetime US3696605A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1968103802U JPS5127296Y1 (enrdf_load_stackoverflow) 1968-11-27 1968-11-27

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US3696605A true US3696605A (en) 1972-10-10

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JP (1) JPS5127296Y1 (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800521A (en) * 1971-03-24 1974-04-02 Vyzk Ustav Bavlnarsky Ringless spinning machine
US3884029A (en) * 1972-06-08 1975-05-20 Vyzk Ustav Bavlinarsky Apparatus for ringless spinning of fibres
US3892063A (en) * 1972-06-07 1975-07-01 Vyzk Ustav Bavlnarsky Spinning machine construction
US3916485A (en) * 1972-10-02 1975-11-04 Vyzk Ustav Bavlnarsky Strand separating and stripping apparatus
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
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
CN106435866A (zh) * 2016-10-21 2017-02-22 东华大学 一种消除涡流的转杯纺纱器
CN106435867A (zh) * 2016-10-21 2017-02-22 东华大学 一种消除涡流的转杯纺纱器
CN106567165A (zh) * 2016-10-21 2017-04-19 苏州多道自动化科技有限公司 一种纺制高强力纱线的转杯纺方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946174A (en) * 1957-06-19 1960-07-26 Wachovia Bank And Trust Compan Apparatus for doffing lint collection chambers
US2976668A (en) * 1958-07-25 1961-03-28 Parks Cramer Co Method and apparatus for the suction of broken ends and dusting of textile machines
US3018603A (en) * 1959-09-25 1962-01-30 Rieter Joh Jacob & Cie Ag Air suction system for removing threads, fly and dust from spinning machines
US3360917A (en) * 1965-12-07 1968-01-02 Vyzk Ustav Bavlnarsky Fiber feeding device for a rotary spinning chamber
US3368340A (en) * 1965-10-01 1968-02-13 Vyzk Ustav Bavlnarsky Method and apparatus for doffing and straightening fibers during combing and spinning thereof
US3439488A (en) * 1966-03-19 1969-04-22 Vyzk Ustav Bavlnarsky Apparatus for supplying separated fibers to a spinning apparatus
US3511044A (en) * 1968-01-19 1970-05-12 Vyzk Ustav Bavlnarsky Method of and apparatus for ringless spinning of fibers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2946174A (en) * 1957-06-19 1960-07-26 Wachovia Bank And Trust Compan Apparatus for doffing lint collection chambers
US2976668A (en) * 1958-07-25 1961-03-28 Parks Cramer Co Method and apparatus for the suction of broken ends and dusting of textile machines
US3018603A (en) * 1959-09-25 1962-01-30 Rieter Joh Jacob & Cie Ag Air suction system for removing threads, fly and dust from spinning machines
US3368340A (en) * 1965-10-01 1968-02-13 Vyzk Ustav Bavlnarsky Method and apparatus for doffing and straightening fibers during combing and spinning thereof
US3360917A (en) * 1965-12-07 1968-01-02 Vyzk Ustav Bavlnarsky Fiber feeding device for a rotary spinning chamber
US3439488A (en) * 1966-03-19 1969-04-22 Vyzk Ustav Bavlnarsky Apparatus for supplying separated fibers to a spinning apparatus
US3511044A (en) * 1968-01-19 1970-05-12 Vyzk Ustav Bavlnarsky Method of and apparatus for ringless spinning of fibers

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3800521A (en) * 1971-03-24 1974-04-02 Vyzk Ustav Bavlnarsky Ringless spinning machine
US3892063A (en) * 1972-06-07 1975-07-01 Vyzk Ustav Bavlnarsky Spinning machine construction
US3884029A (en) * 1972-06-08 1975-05-20 Vyzk Ustav Bavlinarsky Apparatus for ringless spinning of fibres
US3916485A (en) * 1972-10-02 1975-11-04 Vyzk Ustav Bavlnarsky Strand separating and stripping apparatus
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
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
CN106435866A (zh) * 2016-10-21 2017-02-22 东华大学 一种消除涡流的转杯纺纱器
CN106435867A (zh) * 2016-10-21 2017-02-22 东华大学 一种消除涡流的转杯纺纱器
CN106567165A (zh) * 2016-10-21 2017-04-19 苏州多道自动化科技有限公司 一种纺制高强力纱线的转杯纺方法
CN106435866B (zh) * 2016-10-21 2022-04-12 东华大学 一种消除涡流的转杯纺纱器

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JPS5127296Y1 (enrdf_load_stackoverflow) 1976-07-10

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