USRE32494E - Friction spinning frame - Google Patents

Friction spinning frame Download PDF

Info

Publication number
USRE32494E
USRE32494E US06/937,662 US93766286A USRE32494E US RE32494 E USRE32494 E US RE32494E US 93766286 A US93766286 A US 93766286A US RE32494 E USRE32494 E US RE32494E
Authority
US
United States
Prior art keywords
outer shell
roller
perforated
twisting
bearing
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 - Fee Related
Application number
US06/937,662
Other languages
English (en)
Inventor
Meiji Anahara
Shigeru Muramatsu
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
Original Assignee
Toyoda Jidoshokki Seisakusho KK
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
Priority claimed from JP18477284A external-priority patent/JPS6163725A/ja
Priority claimed from JP18477384A external-priority patent/JPS6163726A/ja
Application filed by Toyoda Jidoshokki Seisakusho KK filed Critical Toyoda Jidoshokki Seisakusho KK
Application granted granted Critical
Publication of USRE32494E publication Critical patent/USRE32494E/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

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
    • D01H4/16—Friction spinning, i.e. the running surface being provided by a pair of closely spaced friction drums, e.g. at least one suction drum
    • D01H4/20—Drum bearings; Arrangements for driving or stopping

Definitions

  • the present invention relates to a friction spinning frame in which opened fibers supplied from a fiber transporting channel to a yarn formation zone formed on a valley-shaped surface between a pair of twisting rollers are twisted while held by suction on a surface of at least one of the twisting rollers, which rollers are arranged substantially in parallel to each other with a small gap therebetween and rotate in the same direction to each other, more specifically, to a supporting system of the twisting roller thereof.
  • the twisting roller is supported by a bearing mounted outside of a projected end portion of a shaft of the rollers.
  • Japanese Examined Patent Publication (Kokoku) No. 56-52134 discloses a supporting structure of the twisting roller.
  • one of the roller pair is a perforated hollow roller with a plurality of perforations and having a suction duct therein for providing a suction force on fibers supplied thereon.
  • the roller is mounted for rotation to a frame by engaging a tubular shaft extending from an end of the roller with a bearing.
  • the bearing supporting the perforated roller engages in large relative movement, which causes significant heat generation, resulting in degradation of the lubricant, wear of the bearing, and large energy consumption.
  • Japanese Examined Patent Publication (Kokoku) No. 57-59328 discloses a supporting structure, in the friction spinning frame, for a solid roller, that is, a roller without suction means in the interior thereof.
  • the solid roller is supported by a relatively small bearing built therein.
  • the perforated roller which must inherently be provided with suction means in the interior, there are similar drawbacks as stated above.
  • a friction spinning frame comprising a pair of twisting rollers disposed substantially in parallel and driven in the same direction to each other at a small gap therebetween to form a yarn forming zone of a valley shaped profile on upper surfaces of the twisting rollers along the gap, at least one of the twisting rollers being a perforated hollow roller comprising an outer shell having a plurality of perforations on the entire outer surface thereof and means for providing a suction force through the perforations on the yarn forming zone, whereby staple fibers are twisted to form a yarn while being sucked and held on the yarn forming zone.
  • the spinning frame is characterized in that: a suction pipe, a part of which is accommodated in the interior of the outer shell and having a suction mouth extending close to an inside wall of the outer shell in the axial direction of the perforated roller is fixedly secured to a machine frame; a bearing is fixedly accommodated in the interior of the suction pipe; and a shaft is rotatably supported by the bearing at one end portion thereof and fixedly secured to the outer shell at the other end portion thereof.
  • the twisting rollers preferably comprise a combination of perforated and nonperforated rollers.
  • the twisting rollers may comprise a pair of perforated rollers.
  • the nonperforated roller may be of a hollow shape comprising an outer shell and a supporting tube accommodated in the former while being fixedly secured to a machine frame.
  • a bearing is accommodated in and fixedly secured to the interior of the supporting tube while rotatably holding a shaft fixedly secured to the outer shell, whereby the outer shell of the nonperforated roller is rotatably held around the supporting tube.
  • the supporting tube may be provided with a plurality of perforations on an outer surface thereof.
  • FIG. 1 is a side sectional view of a first embodiment of a friction spinning frame according to the present invention
  • FIG. 2 is a plan view of the first embodiment of FIG. 1;
  • FIG. 3 is a sectional view of the first embodiment along line A--A in FIG. 1;
  • FIG. 4 is a side sectional view of a second embodiment of a friction spinning frame according to the present invention.
  • FIG. 5 is a similar view to FIG. 1 illustrating a modification of the first embodiment
  • FIG. 6 is a partially broken plan view of a conventional friction spinning frame.
  • FIG. 6 there is shown a perforated hollow roller 42 with a plurality of perforation 32 on an outer surface thereof and having a suction duct 41 therein for providing a suction force on fibers supplied thereon by an air flow sucked through the perforations.
  • the roller 42 is mounted for rotation to a frame 45 by engaging a tubular shaft 43 extending from an end of the roller 42 with a bearing 44 and is driven through a pulley 46 secured to an end of the tubular shaft 43.
  • another roller 47 disposed closely in parallel to the perforated roller 42 is mounted for rotation to a frame 50 by engaging a shaft 48 extending from an end of the roller 47 with a bearing 49 and is driven through a pulley 51 secured to an end of the shaft 48.
  • the suction duct 41 is secured to a frame 52 positioned adjacent to the frame 45.
  • the bearing 44 for supporting the perforated roller 42 must be larger in size because the bearing 44 is engaged from outside with the relatively thick tubular shaft 43.
  • FIGS. 1 through 3 illustrate a first embodiment of a friction spinning frame according to the present invention.
  • the first embodiment basically has a structure similar to the conventional one as stated before except for a roller supporting system. That is, it comprises a pair of twisting rollers, a perforated roller 100 and a nonperforated roller 200, disposed close to and in parallel to each other.
  • the perforated twisting roller 100 comprises an outer shell 12 provided with a plurality of perforations 32 on an outer surface thereof; a cylindrical suction pipe 5, an end portion of which is inserted in the interior of the outer shell 12 through a free open end thereof at a small gap between the inner wall of the outer shell 12 and the outer wall of the suction pipe 5 and the other end portion being connected to a suction source (not illustrated); a bearing 7 accommodated in the interior of the suction pipe 5 with an end of the bearing 7 being fixedly inserted in a neck portion 5b of the suction pipe 5; and a shaft 9 rotatably supported by the bearing 7 with an end portion 9a being projected from the bearing 7.
  • the outer shell 12 has a projected tubular portion 13 at an end opposite to the free end.
  • the suction pipe 5 is fixedly inserted into an aperture 3 bored through a machine frame 1 at a portion opposite to the neck portion 5b.
  • a suction mouth 5a of the suction pipe 5 of narrow width is provided on the outer wall thereof close to and along substantially the entire length of the inner wall of the outer shell 12 in the axial direction of the perforated roller 100.
  • the shaft 9 and the outer shell 12 are fixedly secured to each other by firmly inserting the projected end portion 9a of the shaft 9 into the projected tubular portion 13 of the outer shell 12.
  • the nonperforated twisting roller 200 is constituted in a similar manner as the perforated twisting roller 100.
  • the nonperforated twisting roller 200 comprises an plain outer shell 10 covered with an elastic layer such as polyurethane; a hollow cylindrical supporting member 4, an end portion of which is inserted in the interior of the outer shell 10 through a free open end thereof at a small gap between the inner wall of the outer shell 10 and the outer wall of the supporting member 4; a bearing 6 accommodated in the interior of the supporting member 4 with an end of the bearing 6 being fixedly inserted in a neck portion 4b of the supporting member 4; and a shaft 8 rotatably supported by the bearing 6 with an end portion 8a being projected from the bearing 6.
  • the outer shell 10 has a projected tubular portion 11 at an end opposite to the free end.
  • the supporting member 4 is fixedly inserted into an aperture 2 bored adjacent to the aperture 3 through the machine frame 1 at a portion opposite to the neck portion 4b.
  • the shaft 8 and the outer shell 10 are fixedly secured to each other by firmly inserting the projected end portion 8a of the shaft 8 into the projected tubular portion 11 of the outer shell 10.
  • twisting rollers 100 and 200 are driven in the same direction by a common belt 14 running tangentially to the outer surfaces of the projected tubular portions and 13.
  • a fiber delivery device 16 is provided above the twisting rollers 100 and 200, comprising a fiber transporting channel 15 having a tip end of a shape complementary to a V-shaped space (a yarn forming zone) R between the twisting rollers 100 and 200.
  • a sliver 21 is introduced in the fiber delivery device 16 while being nipped between a fluted roller 18 and a presser 20 urged onto the former by a spring 19, in which the sliver 21 is opened to individual fibers by high speed rotation of a combing roller 17 and fed to the yarn forming zone R through the fiber transporting channel 15.
  • a yarn withdrawing device comprising a pair of delivery rollers 22 and a winding drum 23 is provided in the axial direction of the yarn forming zone R.
  • the opened fiber fed from the fiber delivery device 16 to the fiber transporting channel 15 flies therethrough by an air flow caused by a suction of the suction pipe 5 to an outlet 15a and is deposited to form a fiber bundle S on the surface of the outer shell 12 of the perforated roller 100 corresponding to the position of the suction mouth 5a of the suction pipe 5.
  • the fiber bundle S is rotated about its own axis by the same directional rotation of the twisting rollers 100 and 200 and friction between the fiber bundle S and the surfaces of the outer shell 10 and 12, whereby a twist is inserted into the fiber bundle to form a yarn Y.
  • the yarn Y is finally withdrawn from the yarn forming zone R by the delivery rollers 22 and is taken up as a package P by the drum 23.
  • the bearings 6 and 7 of the twisting rollers 100 and 200 become smaller in size relative to the conventional ones because the bearings are accommodated in the interior space of the twisting rollers, which can minimize the relative motion of the bearings.
  • the bearing 7 supporting the shaft 9 of the perforated twisting roller 12 is always cooled by an air flow introduced in the interior of the suction pipe 5 through the suction mouth 5a of the suction pipe 5, temperature elevation of the bearing due to the high speed rotation of the twisting roller 100 can be prevented. Thus, deterioration of the lubricant and also wear of the bearing are minimized.
  • FIG. 4 A second embodiment of the present invention is illustrated in FIG. 4, in which the supporting member 4 of the nonperforated twisting roller 200 is provided with a plurality of apertures 34 on the outer surface of the supporting member 4 for sucking air through a gap between the outer wall of the supporting member 4 and the inner wall of the shell 10.
  • a plurality of grooves may be provided on the inner surface of the outer shell of the nonperforated twisting roller.
  • FIG. 5 A modification of the first embodiment is shown in FIG. 5, in which a shaft 24 for supporting the nonperforated twisting roller 200 is directly fixed at one end portion thereof to the machine frame 1 and a bearing 25 fixed in the interior of the outer shell 10 is rotatably mounted on the shaft 24.
  • the projected portion 11 of the outer shell 10 is not necessarily tubular but may be solid.
  • both twisting rollers may be perforated in the outer shells and provided with a respective suction pipe therein.
  • the belt may be engaged directly with the end portions of the shafts exposed outside from the ends of the outer shells or with the periphery of pulleys attached to the ends of the projected tubular portions or the shafts.
  • the rotational speed of the twisting rollers can be easily varied by changing the diameter of the pulley.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US06/937,662 1984-09-03 1986-12-03 Friction spinning frame Expired - Fee Related USRE32494E (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP59-184773 1984-09-03
JP18477284A JPS6163725A (ja) 1984-09-03 1984-09-03 吸着加撚紡績装置の加撚ロ−ラ
JP59-184772 1984-09-03
JP18477384A JPS6163726A (ja) 1984-09-03 1984-09-03 吸着加撚紡績装置の加撚ロ−ラ

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US06/769,593 Reissue US4606185A (en) 1985-08-26 1985-08-26 Friction spinning frame

Publications (1)

Publication Number Publication Date
USRE32494E true USRE32494E (en) 1987-09-08

Family

ID=26502706

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/937,662 Expired - Fee Related USRE32494E (en) 1984-09-03 1986-12-03 Friction spinning frame

Country Status (2)

Country Link
US (1) USRE32494E (enrdf_load_stackoverflow)
DE (1) DE3530996A1 (enrdf_load_stackoverflow)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757507A (en) * 1968-12-31 1973-09-11 D Maxham Open end roving, spinning, and spinning and twisting methods
US4202163A (en) * 1977-03-30 1980-05-13 Barmag Barmer Maschinenfabrik Aktiengesellschaft Spinning process and apparatus
US4367623A (en) * 1980-02-16 1983-01-11 Alan Parker Piecing up a friction spinning apparatus
US4420928A (en) * 1981-02-09 1983-12-20 Ernst Fehrer Apparatus for manufacturing a yarn
US4502272A (en) * 1982-12-03 1985-03-05 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Apparatus for making a yarn
US4514975A (en) * 1983-02-23 1985-05-07 Hans Stahlecker Friction roller arrangement for open end friction spinning machine
US4537021A (en) * 1983-06-15 1985-08-27 Hollingsworth (U.K.) Limited Friction spinning

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54142334A (en) * 1978-04-20 1979-11-06 Kyowa Kikai Seisakushiyo Kk Spinning method and apparatus
GB2042599B (en) * 1978-10-26 1983-09-21 Platt Saco Lowell Ltd Open-end spinning apparatus
FR2439832A1 (fr) * 1978-10-26 1980-05-23 Platt Saco Lowell Ltd Appareil et procede de filage par fibres liberees

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3757507A (en) * 1968-12-31 1973-09-11 D Maxham Open end roving, spinning, and spinning and twisting methods
US4202163A (en) * 1977-03-30 1980-05-13 Barmag Barmer Maschinenfabrik Aktiengesellschaft Spinning process and apparatus
US4367623A (en) * 1980-02-16 1983-01-11 Alan Parker Piecing up a friction spinning apparatus
US4420928A (en) * 1981-02-09 1983-12-20 Ernst Fehrer Apparatus for manufacturing a yarn
US4502272A (en) * 1982-12-03 1985-03-05 Textilmaschinenfabrik Dr. Ernst Fehrer Aktiengesellschaft Apparatus for making a yarn
US4514975A (en) * 1983-02-23 1985-05-07 Hans Stahlecker Friction roller arrangement for open end friction spinning machine
US4537021A (en) * 1983-06-15 1985-08-27 Hollingsworth (U.K.) Limited Friction spinning

Also Published As

Publication number Publication date
DE3530996A1 (de) 1986-03-13
DE3530996C2 (enrdf_load_stackoverflow) 1988-09-15

Similar Documents

Publication Publication Date Title
US4168601A (en) Frictional open-end spinning method and apparatus
CS216816B2 (en) Facility for spinning with open end
US4507913A (en) Vacuum spinning
EP0184277B1 (en) Vacuum spinning
US4241571A (en) Apparatus for open-end or round-about spinning of a thread
US4527384A (en) Method of and apparatus for producing multicomponent spun-twisted yarns by open-end spinning
US3965661A (en) Thread drawoff tube for an open-end spinning unit
US4571932A (en) Friction spinning roller arrangement
JPH06509147A (ja) ファイバ開繊装置
EP0132045B1 (en) Friction open-end spinning apparatus
USRE32494E (en) Friction spinning frame
US4606185A (en) Friction spinning frame
JPH11140726A (ja) 結合された紡績及び撚糸工程において撚糸を製造するための装置
US4606187A (en) Fiber feeding air flow arrangement for open-end friction spinning
KR830001595B1 (ko) 오픈-앤드 정방기
JP4541634B2 (ja) スライバ貯留装置用回転テーブル
US3786622A (en) Yarn spinning method and apparatus therefor
US4601166A (en) Spinning device
SU1463135A3 (ru) Устройство дл получени пр жи
US4653264A (en) Arrangement for open-end friction spinning
US5598695A (en) Rotor type open-end spinning unit having outer and inner rotors
JPS6235033Y2 (enrdf_load_stackoverflow)
JPH0533226A (ja) ロータ式オープンエンド精紡機
CN85106975A (zh) 摩擦纺纱机
US5974778A (en) Arrangement for open-end spinning comprising a driven suction roller

Legal Events

Date Code Title Description
REMI Maintenance fee reminder mailed
REMI Maintenance fee reminder mailed
LAPS Lapse for failure to pay maintenance fees
STCH Information on status: patent discontinuation

Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362