US3892019A - Apparatus for introducing yarns into draw-texturing machines - Google Patents

Apparatus for introducing yarns into draw-texturing machines Download PDF

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Publication number
US3892019A
US3892019A US370458A US37045873A US3892019A US 3892019 A US3892019 A US 3892019A US 370458 A US370458 A US 370458A US 37045873 A US37045873 A US 37045873A US 3892019 A US3892019 A US 3892019A
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US
United States
Prior art keywords
yarn
texturing
draw
delivery devices
reserve
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
US370458A
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English (en)
Inventor
Albert Rebsamen
Paul Gubler
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.)
Heberlein and Co AG
Original Assignee
Heberlein and Co AG
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 Heberlein and Co AG filed Critical Heberlein and Co AG
Application granted granted Critical
Publication of US3892019A publication Critical patent/US3892019A/en
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
    • D02G1/0206—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 by false-twisting
    • D02G1/0266—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 by false-twisting false-twisting machines
    • D02G1/0273—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 by false-twisting false-twisting machines threading up and starting the false-twisting machine
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H51/00—Forwarding filamentary material
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/10—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips
    • B65H51/105—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements with opposed coacting surfaces, e.g. providing nips one of which is an endless belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H57/00—Guides for filamentary materials; Supports therefor
    • B65H57/003—Arrangements for threading or unthreading the guide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • ABSTRACT Apparatus for introducing yarn into draw-texturing machines wherein means are provided between the draw and texturing apparatus for enlarging the normal yarn path thus providing a start yarn reserve and releasing the yarn upon start of the texturing apparatus.
  • the present invention relates to apparatus for introducing yarns into delivery devices and texturing devices of a draw-texturing machine.
  • this task is primarily resolved by loosely inserting the yarn between the last delivery device of the drawing apparatus in the direction of yarn movement, and the texturing device.
  • tightening of the loose yarn portion is effected in a most simple way without the danger of yarn breakage.
  • This purpose is achieved in a particularly advantageous way by first inserting the yarn under tension into the drawing device in order to effect drawing, and then introducing it into the texturing device, using a start reserve.
  • the objects of the present invention can be resolved in a particularly simple way by providing an additional holder between the last delivery device of the drawing apparatus and the texturing device, and outside the yarn path used during operation.
  • this additional holder By means of this additional holder, and while using the required start yarn reserve, the yarn can easily be guided and inserted into the texturing device in a way whereby the normal yarn path is elongated. Immediately before the start, the yarn can be brought back into its normal position by retracting the additional holder, the yarn start reserve being entirely available.
  • Such an additional holder could also be dispensed with if an additional delivery device is provided before the texturing device so that the yarn reserve could be available upon insertion of the yarn between the additional delivery device and the last delivery device of the drawing apparatus.
  • the additional holder be arranged on a lever which can be swivelled into at least two positions, the holder, while in operation, being positioned to guide the yarn outside the normal yarn path, such position being regarded as the yarn inserting position, and out of engagement with the yarn when in non-operating position.
  • a particularly simple construction is achievable if the output delivery of the drawing apparatus has a fixed drive roller and at least one pressure roller fixed on a swivelling lever and swivellable away from the drive roller with the swivelling lever for inserting the yarn, as then the additional holder can be fixed on the swivelling lever in a most simple manner.
  • the additional holder can be fixed in various positions so that after insertion of the yarn and swivelling into operating position, the appropriate start yarn reserve is present.
  • the additional holder is a pinching device by which, during insertion, an exactly definable start yarn reserve can be established.
  • the additional holder is in the form of a pin around which, for establishing the start reserve, the yarn is wrapped once during insertion and is removed before starting the machine. Removal can then also be achieved so that the pin can be swivelled into the guide path to insert the yarn and can be swivelled back for removing the yarn.
  • FlG. l is a schematic view of a draw-texturing device including the features of the present invention.
  • FIG. 2a and 2b illustrate a modified example of a holder according to the present invention in initial and yarn release position, respectively.
  • FIG. 3 illustrates schematically an additional holder with a pinching device
  • FIG. 4 shows a simplified embodiment of an additional holder in the form of a pin.
  • the yarn l is removed from a bobbin (not shown) and stretched at a ratio of, for example, 1 5 between delivery means 2 and 3.
  • the drawing device comprises a heating unit 4 for heating the yarn during drawing. From the delivery means 3, the yarn 1 is delivered to the convection heater 5 and the texturing device 6. As shown, the yarn path in normal operation is vertical after the delivery means 3.
  • an additional holder 7 which, upon insertion of the yarn, is brought into the position shown in broken lines by means of lever 8 so that the yarn is at first inserted along the path also shown in broken lines to enlarge the guide path of the yarn and to assure a start yarn reserve after the lever 8 has been swivelled back into the vertical position shown in solid lines.
  • FIGS. 2a, 2b we show a modified example of the invention in which an additional holder 9 is directly fixed on a swivelling arm which also carries pressure rollers 11 over which an endless belt passes.
  • the yarn is applied over the pressure rollers H and belt 15 for insertion, brought into engagement with the additional holder 9 and then directed downward for insertion into the texturing device (not shown).
  • the swivelling arm 10 is brought into the position shown in FIG. 2b whereby the yarn l is pressed against drive roller 12 by means of pressure rollers 11 and belt 15.
  • the yarn l is disengaged from the additional holder 9, thus liberating the start reserve.
  • the additional holder comprises a pinching device 13 with which yarn 1 can be held during insertion and by the release of which, against the biasing force of a spring 130, and start yarn reserve is liberated.
  • the insertion process can be adapted to yarns of various types and the length of the yarn reserve can be varied in a simple way by selectively inserting the yarn in one of several grooves a, b or c, for example in the pinching device 13.
  • FIG. 4 shows, as a simplified example, a pin 14 in the form of an additional holder.
  • the start yarn reserve is obtained in this case, as shown in broken lines, by first winding yarn around pin 14 and removing it by shifting either the pin or yarn so that the yarn passes the end of the pin as shown by the solid line before starting the operation of the texturing machine.
  • Apparatus for introducing a yarn into drawtexturing machines which include delivery devices (2,3) and texturing means (5,6), characterized by yarn holding means (9,11,15) positioned between said delivery devices and said texturing means to provide a yarn guide path longer than the normal yarn guide path between said delivery devices and texturing means, and means (10) shifting said yarn holding means out of engagement with the yarn prior to operation of said texturing means whereby the yarn tension is reduced and a start yarn reserve is provided, one of said delivery devices (3) on the output side of the drawing device including a fixedly located drive roller (12) and said yarn holding means comprising at least one pressure roller (11) around which the yarn passes, said pressure roller being movable between a first yarn insertion position away from the drive roller wherein the yarn is out of contact with the latter, and a second normal position wherein the yarn contacts the drive and pressure rollers, and an additional holder (9) arranged to support the yarn when same is in yarn insertion position and to release same to normal position when said pressure roller moves from its first to its second position.
  • the yarn holding means includes two pressure rollers (11) over which an endless belt (15) passes and around which the yarn is applied.

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)
  • Forwarding And Storing Of Filamentary Material (AREA)
US370458A 1972-06-21 1973-06-15 Apparatus for introducing yarns into draw-texturing machines Expired - Lifetime US3892019A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH934772 1972-06-21

Publications (1)

Publication Number Publication Date
US3892019A true US3892019A (en) 1975-07-01

Family

ID=4351020

Family Applications (1)

Application Number Title Priority Date Filing Date
US370458A Expired - Lifetime US3892019A (en) 1972-06-21 1973-06-15 Apparatus for introducing yarns into draw-texturing machines

Country Status (8)

Country Link
US (1) US3892019A (pt)
JP (1) JPS4955951A (pt)
BR (1) BR7304538D0 (pt)
CH (1) CH546287A (pt)
DD (1) DD105633A5 (pt)
DE (1) DE2330791A1 (pt)
FR (1) FR2190104A5 (pt)
GB (1) GB1415578A (pt)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040182066A1 (en) * 2001-10-10 2004-09-23 Saurer Gmbh & Co. Kg Yarn Texturing machine for producing a composite yarn

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166822A (en) * 1960-04-26 1965-01-26 English Rose Ltd Method and apparatus for production of bulked yarn
US3201956A (en) * 1960-11-04 1965-08-24 Liebrandt Karl Textile machine
US3729916A (en) * 1971-03-30 1973-05-01 Beaunit Corp Method for treating yarn
US3766726A (en) * 1971-11-24 1973-10-23 R Carroll Yarn guide

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166822A (en) * 1960-04-26 1965-01-26 English Rose Ltd Method and apparatus for production of bulked yarn
US3201956A (en) * 1960-11-04 1965-08-24 Liebrandt Karl Textile machine
US3729916A (en) * 1971-03-30 1973-05-01 Beaunit Corp Method for treating yarn
US3766726A (en) * 1971-11-24 1973-10-23 R Carroll Yarn guide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040182066A1 (en) * 2001-10-10 2004-09-23 Saurer Gmbh & Co. Kg Yarn Texturing machine for producing a composite yarn
US6840032B2 (en) * 2001-10-10 2005-01-11 Saurer Gmbh & Co. Kg Yarn texturing machine for producing a composite yarn

Also Published As

Publication number Publication date
DE2330791A1 (de) 1974-01-17
JPS4955951A (pt) 1974-05-30
CH546287A (de) 1974-02-28
BR7304538D0 (pt) 1974-09-05
FR2190104A5 (pt) 1974-01-25
GB1415578A (en) 1975-11-26
DD105633A5 (pt) 1974-05-05

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