US3595003A - False twisting device - Google Patents

False twisting device Download PDF

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Publication number
US3595003A
US3595003A US843961A US3595003DA US3595003A US 3595003 A US3595003 A US 3595003A US 843961 A US843961 A US 843961A US 3595003D A US3595003D A US 3595003DA US 3595003 A US3595003 A US 3595003A
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United States
Prior art keywords
rollers
roller
pair
radially
axially
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
US843961A
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English (en)
Inventor
Hans Gassner
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.)
IHO Holding GmbH and Co KG
Original Assignee
Kugelfischer Georg Schaefer and Co
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 Kugelfischer Georg Schaefer and Co filed Critical Kugelfischer Georg Schaefer and Co
Application granted granted Critical
Publication of US3595003A publication Critical patent/US3595003A/en
Assigned to FAG KUGELFISCHER GEORG SCHAFER KOMMANDITGESELLSCHAFT AUF AKTIEN (KGAA) reassignment FAG KUGELFISCHER GEORG SCHAFER KOMMANDITGESELLSCHAFT AUF AKTIEN (KGAA) CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). JUNE 30, 1983 Assignors: FAG KUGELFISCHER GEORG SCHAFER & CO.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
    • D02G1/00—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics
    • D02G1/02—Producing crimped or curled fibres, filaments, yarns, or threads, giving them latent characteristics by twisting, fixing the twist and backtwisting, i.e. by imparting false twist
    • D02G1/04—Devices for imparting false twist
    • D02G1/06—Spindles

Definitions

  • ABSTRACT An elongate false twisting member extending ax- Int. Cl D0lh 7/92, ially along the outer periphery of a plurality of axially spaced- DOlh 7/46 apart parallel rollers which rotatably bear in opposite radial Field of Search 57/773, directions against said member so as to determine a fixed radi- 77.45, 93, 103 a1 position for same while simultaneously rotating same.
  • the present invention relates to a false twisting device for the continuous crimping of synthetic threads and it comprises at least one rotatable elongate member, such as a tube, which constitutes the thread guide and which is rotatably supported by virtue of its extending axially along the peripheral surfaces of a plurality of axially spaced apart rollers at least one of which is radially opposed and axially between two others whereby in combination said rollers provide a three-point stable support for said member.
  • a false twisting device for the continuous crimping of synthetic threads and it comprises at least one rotatable elongate member, such as a tube, which constitutes the thread guide and which is rotatably supported by virtue of its extending axially along the peripheral surfaces of a plurality of axially spaced apart rollers at least one of which is radially opposed and axially between two others whereby in combination said rollers provide a three-point stable support for said member.
  • Such an arrangement provides a high degree of stable support for the twisting member which is essential in instances in which it is to be rotated in the order of 500,000 rpm. and faster.
  • the arrangement according to this application is such that the aforementioned rollers may be separated from each other, when access to the twisting member is desired as during rethreading or during other operational interruption, without any other support being required for the twisting member during such periods.
  • the herein disclosed arrangement includes a magnetic means for holding the twisting member while it is no longer supported by said rollers, said magnetic means holding the member while it is being displaced between its normal operational position and a position enabling access thereto for rethreading, etc.
  • An object of the present invention is the realization of a rotary support means for a twisting member which provides an accurate and stable orientation of same for very high speed operation.
  • Another object of this invention is the realization of a support means which provides rotary support while simultaneously providing a rotary driving means for the twisting member.
  • Another object of the invention is the realization of a rotary support and driving means which provides easy access to the twisting member during intervals when such is required.
  • Another object of the invention is the realization of a support and driving means which permits separation of the driving means from the twisting member without an additional support means being required therefore and without disturbing the axial orientation of the twisting member relative to the driving means.
  • Another object of the invention is the realization of the foregoing objects through an arrangement which is simple in construction and operation and therefore reliable and not costly,
  • FIG. 1 is a side elevation view of a device according to the invention, omitting rollers 3 and 3' so as to expose to view certain parts, and showing some parts in section;
  • FIGS. 2 and 3 are respective top plan views of the device of FIG. 1 respectively illustrating the swung in and swung out positions of the twisting member.
  • the twisting member comprises an elongate tube I extending axially between the nip formed by each of two pairs of rollers 2, 3 and 2, 3', it being understood that rollers 2, 2 are coaxial with each other and rollers 3, 3' are coaxial with each other and that FIG. I omits rollers 3,, 3 for purposes ofclarity.
  • the coaxial rollers 2, 2' bear upon axially spaced-apart points of a cylindrical twisting member such as tube 1 while another roller 4 bears against said tube at a point intermediate the rollers 2, 2, in this instance, exactly halfway between said rollers 2, 2'.
  • the rollers 3, 3' are respectively in the same planes as rollcrs 2, 2'.
  • the axis 11 of rollers 2, 2 is parallel to that 12 of rollers 3, 3' and to that 13 of roller t.
  • the device includes a supporting frame 8 in which the rollers.2, 3 and 2, 3' are rotatably mounted.
  • One end of a pivot arm 7 is also pivotally mounted at 6 to said frame 8 while the other end of said arm is held in position by a spring means 5 connected to said arm and to said frame.
  • Rotatably mounted on arm 7 is the roller 4 so that said roller in fact resiliently urges the tube 1, in the condition depicted in FIG. 2, against the rollers in each said pair, the resilient urging being provided by spring 5.
  • Two flat magnets 9 are attached to a support 9' which is also pivotally supported at 6.
  • One of said magnets is positioned in each side of roller 4 so that its flank 10 faces the tube 1 at a one of two axially spaced locations thereof.
  • an arm 15 of nonmagnetic material and secured at one end thereof is a head 14 of magnetically conductive material such as soft iron, said head M facing the side of tube 1 opposite to the side faced by the magnet flanks l0 and providing a return path for the magnetic flux between the two magnets 9.
  • either spindle 11 or 12 may be driven by a known means, such as a belt drive, to correspondingly rotate the two rollers 2, 2 or 3, 3' which are rigid with said spindle, the rotation of these rollers being in turn transmitted to tube I through the surface-to-surface contact which exists between the rollers 2, 2' and 3, 3' with the tube 1.
  • a high-speed ratio is obtained by having the diameter of tube I small relative to that of the other rollers.
  • magnetic material collars I6, I7 may be fixedly mounted on tube 1 at spaced-apart locations corresponding to the axial spacing between the magnets 9. Further, the use of such collars makes it possible to employ a tube 1 of nonmagnetic material.
  • FIG. 3 The position depicted in FIG. 3 provides easy access to tube 1 for whatever operations thereon may be necessary. When such operations are completed the tube 1 may be carried back into the operative position of FIG. 2 simply by releasing arm 7 and permitting it to swing under the urging of spring 5. The tube 1 is thereby accurately relocated in the operative position of FIG. 2.
  • the magnetic means according to this application are inexpensive and yet reliable in operation.
  • the use of the head 14 helps to ensure accurate positioning of the tube I in its swungin and swung-out positions.
  • I7 tube 1 is provided with a head I8 having an axially extending bore of the same diameter as and in alignment with the axial bore of tube 1, said head 18 having arranged in its bore a transversally extending pin around which the thread to be twisted is wound at least once,
  • a false twisting device for thread comprising: a rotatable elongate false twister member, a plurality of rollers rotatably mounted along respective axes paralleled to each other and to said member, said rollers bearing against said member at at least three axially spaced-apart locations thcrealong, a first said roller mounted along one of said axes being axially intermediate two said rollers mounted along another of said axes, said rollers bearing against said member in respective different radial directions whereby said member is axially and radially supported between said rollers, said first roller being radially displaceable relative to said two rollers, a magnet means integrally displaceable with said first roller and being positioned radially adjacent to said twister member.
  • the device of claim 1 including two pairs of coplanar rollers, each pair being in a respective plane axially spaced apart from the other plane along the length of said member, the rollers in each pair being coaxial with respective rollers in the other pair, said member extending axially between said pairs of coplanar rollers, said first roller being axially intermediate said pairs of coplanar rollers.
  • said magnet means comprising a pair of flat magnets axially spaced apart along the length of said member on one radial side thereof.
  • said magnet means including a head of magnetically conductive material bridging the axial distance between said flat magnets along a radial side of said member opposite to said one radial side, said head being integrally displaceable with said flat magnets.
  • said first roller and said magnet means being mounted on a pivot arm, a resilient means urging said arm to a swung-in position which corresponds to said first roller bearing upon said twister member and urging samc against said two rollers, said arm being pivotable against said urging to a swung-out position which corresponds to said first roller being radially displaced away from the aforementioned swung-in position whereby said twister member is free to displace radially away from said two rollers, said magnet means being adapted to hold said twister member in a fixed position relative to said first roller in the aforementioned swung-out position thereof.
  • the device of claim 3 including a pair of collars of magnetic material mounted on said member at an axial distance apart from each other in correspondence with the axial positions of said magnets, said collars being of larger diameter than said member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Tyre Moulding (AREA)
US843961A 1968-10-04 1969-07-23 False twisting device Expired - Lifetime US3595003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681801329 DE1801329A1 (de) 1968-10-04 1968-10-04 Falschzwirnvorrichtung

Publications (1)

Publication Number Publication Date
US3595003A true US3595003A (en) 1971-07-27

Family

ID=5709692

Family Applications (1)

Application Number Title Priority Date Filing Date
US843961A Expired - Lifetime US3595003A (en) 1968-10-04 1969-07-23 False twisting device

Country Status (6)

Country Link
US (1) US3595003A (de)
BR (1) BR6909841D0 (de)
CH (1) CH490535A (de)
DE (1) DE1801329A1 (de)
FR (1) FR2019877A1 (de)
GB (1) GB1204848A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871166A (en) * 1973-03-26 1975-03-18 Teijin Ltd Device for imparting false twists on a filamentary yarn
US3908350A (en) * 1974-10-29 1975-09-30 Dow Badische Co Spindle retainer
US3943693A (en) * 1973-10-01 1976-03-16 Heberlein Maschinenfabrik Ag. Apparatus for false-twist texturing of textile yarns

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855750A (en) * 1956-05-14 1958-10-14 American Enka Corp Thread twisting device
US3115743A (en) * 1960-03-25 1963-12-31 Glanzstoff Ag Supporting means for a thread turning tube
US3233398A (en) * 1963-09-13 1966-02-08 Klinger Mfg Co Ltd High speed driving transmissions for spindles
GB1023445A (en) * 1962-11-06 1966-03-23 Scragg & Sons High speed spindle arrangement
US3313096A (en) * 1963-04-19 1967-04-11 Societex Devices for driving bodies revolving at high speeds, and in particular false twist spindles in crimping machines
GB1079298A (en) * 1964-03-28 1967-08-16 Carlos Alba Soto Improvements in or relating to mounting arrangements for false twist tubes or spindles
GB1107377A (en) * 1964-06-25 1968-03-27 Klinger Mfg Co Ltd Apparatus for driving and supporting a spindle
US3392518A (en) * 1966-11-02 1968-07-16 Scragg & Sons Textile apparatus
US3488937A (en) * 1968-04-01 1970-01-13 Textile Dev & Sales Inc Rotor retaining member

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2855750A (en) * 1956-05-14 1958-10-14 American Enka Corp Thread twisting device
US3115743A (en) * 1960-03-25 1963-12-31 Glanzstoff Ag Supporting means for a thread turning tube
GB1023445A (en) * 1962-11-06 1966-03-23 Scragg & Sons High speed spindle arrangement
US3313096A (en) * 1963-04-19 1967-04-11 Societex Devices for driving bodies revolving at high speeds, and in particular false twist spindles in crimping machines
US3233398A (en) * 1963-09-13 1966-02-08 Klinger Mfg Co Ltd High speed driving transmissions for spindles
GB1079298A (en) * 1964-03-28 1967-08-16 Carlos Alba Soto Improvements in or relating to mounting arrangements for false twist tubes or spindles
GB1107377A (en) * 1964-06-25 1968-03-27 Klinger Mfg Co Ltd Apparatus for driving and supporting a spindle
US3392518A (en) * 1966-11-02 1968-07-16 Scragg & Sons Textile apparatus
US3488937A (en) * 1968-04-01 1970-01-13 Textile Dev & Sales Inc Rotor retaining member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871166A (en) * 1973-03-26 1975-03-18 Teijin Ltd Device for imparting false twists on a filamentary yarn
US3943693A (en) * 1973-10-01 1976-03-16 Heberlein Maschinenfabrik Ag. Apparatus for false-twist texturing of textile yarns
US3908350A (en) * 1974-10-29 1975-09-30 Dow Badische Co Spindle retainer

Also Published As

Publication number Publication date
DE1801329A1 (de) 1970-06-25
CH490535A (de) 1970-05-15
GB1204848A (en) 1970-09-09
BR6909841D0 (pt) 1973-01-02
FR2019877A1 (de) 1970-07-10

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Legal Events

Date Code Title Description
AS Assignment

Owner name: FAG KUGELFISCHER GEORG SCHAFER KOMMANDITGESELLSCHA

Free format text: CHANGE OF NAME;ASSIGNOR:FAG KUGELFISCHER GEORG SCHAFER & CO.;REEL/FRAME:004182/0129

Effective date: 19830826