US3211391A - Textile machines - Google Patents

Textile machines Download PDF

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Publication number
US3211391A
US3211391A US139177A US13917761A US3211391A US 3211391 A US3211391 A US 3211391A US 139177 A US139177 A US 139177A US 13917761 A US13917761 A US 13917761A US 3211391 A US3211391 A US 3211391A
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US
United States
Prior art keywords
nip roller
roller means
nip
lever
driving
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
US139177A
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English (en)
Inventor
Scragg Frederick
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.)
Eruest Scragg & Sons Ltd
Original Assignee
Eruest Scragg & Sons 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 Eruest Scragg & Sons Ltd filed Critical Eruest Scragg & Sons Ltd
Application granted granted Critical
Publication of US3211391A publication Critical patent/US3211391A/en
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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
    • D02G1/20—Combinations of two or more of the above-mentioned operations or devices; After-treatments for fixing crimp or curl
    • D02G1/205—After-treatments for fixing crimp or curl
    • 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
    • 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

  • the present invention concerns a yarn forwarding arrangement for use in textile machines, and is particularly useful where thermoplastic yarns, which have been twistcrimped and which at one stage of their run must be allowed to contract, are employed.
  • This contraction follows as a result of a previous crimping process since during this process the yarn is given a series of snarls or kinks which have set in the yarn and produced in it a contractile force.
  • the yarn instead of being substantially straight though stressed, tends to become bulky and fiuffy under the infiuence of the said stresses, and the force which it exerts becomes very small indeedof the order of a fraction of a gram. Under these conditions it will be realised that it cannot be pulled round, for example, a spreader block, but must be ejected into the contracting zone from between two smooth surfaces, the tangent plane to the two surfaces preferably including the forward path of the yarn.
  • nip rollers one of which is driven, the yarn if necessary being taken two or three times round an idler roller.
  • This latter may be provided with a cot or tyre of resilient material to prevent damage to the yarn. It has been found however, that it is advisable to coat both rollers with this resilient material, and this introduces a difliculty in that the driven roller is preferably one of a number of such all mounted on a common shaft.
  • an arrangement for forwarding a plurality of yarns comprises a common drive shaft, a plurality of driving rollers fixed to said drive shaft, a plurality of individually mounted first nip rollers each faced with resilient material and adapted to be driven by engagement with one of said driving rollers, and a plurality of individually mounted second nip rollers each faced with resilient material and adapted to be driven by one of said first nip rollers.
  • Each first nip roller is preferably urged towards its corresponding driving roller and each second nip roller may either be urged towards its corresponding first nip roller by a predetermined pressure such as by its own weight, or resiliently urged thereto.
  • each first nip roller is preferably mounted on a separate first arm, which is pivotally mounted on the machine frame, and each second nip roller is preferably mounted on a separate second arm which is pivotally mounted on an extension of the corresponding first arm.
  • a spring fixed at one end to the first arm and at the other end to the second arm, may urge each second nip roller towards its corresponding first nip roller.
  • FIG. 1 is a side elevation of one embodiment
  • FIG. 2 is a front elevation of a plurality of the embodiments shown in FIG. 1.
  • a textile machine 11 is provided with a driving shaft 12 common to a plurality of yarn paths, and at each yarn path the common shaft has a driving roller 13 mounted on it, this roller having a smooth steel face.
  • a single nip roller 14 having a tyre 15 of resilient material is mounted on a separate first arm 16 so as to rest on its associated driving roller 13, the roller 14 being pivoted on one end of the arm 16, the other end of which is pivoted on the frame of the machine 11, the two rollers 13 and 14 being held in contact by the weight of the driven roller 14 and its arm 16 so that this first driven roller 14 is rotated when in contact with the driving roller 13.
  • the arm 16 is arranged to have two normal positions, one in which the rollers 13 and 14 are in contact and another in which they are separated by a short distance so that the driven roller 14 can be stopped for threading up.
  • the arm 16 is provided with an extension 17 having a pivot 18 at its far end, and a second nip roller 19 also provided with a tyre 20 is mounted on the end of a separate second arm 21 pivoted on the end of the first arm extension 17.
  • This second roller 19 is spring loaded so that its surface is pressed into contact with the surface of the first driven roller 14.
  • the second roller 19 may also have two positions of rest, one in which its surface is in driving contact with the first roller 14 and one in which the two tyred rollers 14 and 19 are separated.
  • a tangent plane to the rollers including their line of contact is arranged to include the forwarding path of the yarn after it leaves the nip rollers.
  • FIG. 2 shows each pair of nip rollers 14 and 19, together with their associated driving rollers 13 mounted in a row, all being driven by the common driving shaft 12.
  • the nip rollers 14 and 19 are separated as for example by removing the second roller 19 from the first roller 14, which may be left in Contact with the driving roller 13.
  • Yarn is now brought up from the crimping zone and wound two or three times round the second roller 19, the turns being kept apart by a spacer (not shown) of known type.
  • the yarn is then taken to a package (also not shown) the peripheral speed of which when run is 25% less than the peripheral speed of the nip rollers.
  • the two nip rollers 14 and 19 are now brought together under the influence of a spring 22 acting on the second roller 19 whereupon yarn is forwarded from the crimping zone at the peripheral speed of the nip rollers, and is taken up on the package at a rate less than this speed. This permits the yarn to bulk in the space between the nip rollers 14 and 19 and take-up package.
  • tyre wear can be reduced by making the thickness of each type commensurable with the diameter of the yarn to b treated so that the yarn does not sink too deeply into the resilient material and is tightly gripped by the said surface.
  • tyre wear can be reduced by employing resilient material of not greater than in thickness. It is therefore advisable to use the minimum thickness of tyre, always provided that sufficient resiliency in each tyre remains in order to prevent damage to the yarn by compression.
  • elongated rotary drive means having a plurality of driving portions axially distributed therealong; a plurality of first nip roller means respectively having axes parallel to those of said drive means and respectively aligned with said driving portions thereof; a plurality of first support means respectively supporting said plurality of first nip roller means for rotation about their respective axes and also respectively supporting said plurality of said first nip roller means for movement at their peripheries into and out of engagement with said driving portions to be driven thereby; a plurality of second nip roller means respectively having axes parallel to those of said plurality of first nip roller means and respectively aligned therewith; and a plurality of second support means, each movably mounted on one of said first supporting means, respectively supporting said plurality of second nip roller means for rotation about their respective axes and for movement at their peripheries into and out of engagement with the pe
  • said rotary drive means extending horizontally and said plurality of said first support means respectively including a plurality of levers supporting said plurality of first nip roller means for movement by gravity downwardly into engagement with said driving portions and said plurality of said second support means including a plurality of second levers respectively pivotally connected to said first levers and supporting said plurality of second nip roller means for turning movement into and out of engagement with said plurality of first nip roller means, respectively.
  • a plurality of spring respectively interconnecting the levers of said first and second support means for urging said second nip roller means respectively into engagement with said first nip roller means.
  • said drive means including an elongated drive shaft and said driving portions being formed by a plurality of driving rollers carried by said drive shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Preliminary Treatment Of Fibers (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
US139177A 1960-09-20 1961-09-19 Textile machines Expired - Lifetime US3211391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB32296/60A GB916395A (en) 1960-09-20 1960-09-20 Improvements in textile machines

Publications (1)

Publication Number Publication Date
US3211391A true US3211391A (en) 1965-10-12

Family

ID=10336400

Family Applications (1)

Application Number Title Priority Date Filing Date
US139177A Expired - Lifetime US3211391A (en) 1960-09-20 1961-09-19 Textile machines

Country Status (4)

Country Link
US (1) US3211391A (es)
CH (1) CH386045A (es)
ES (1) ES270326A1 (es)
GB (1) GB916395A (es)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210308946A1 (en) * 2020-04-07 2021-10-07 Bondtech Ab Filament feeding adjustment device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US519491A (en) * 1894-05-08 Spinning machinery
US2276494A (en) * 1939-10-31 1942-03-17 Rca Corp Web feeding apparatus
US2499699A (en) * 1947-06-06 1950-03-07 Magnecord Inc Wire and tape driving means
DE830655C (de) * 1950-09-15 1952-02-07 Walter Fischer Steuerung der Tupferrollen an Bogenanlegern fuer Druckereimaschinen
US2667313A (en) * 1948-07-30 1954-01-26 Deering Milliken Res Trust Tension device
US3001733A (en) * 1958-04-14 1961-09-26 Clevite Corp Tape transport mechanism in magnetic recording and/or reproducing apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US519491A (en) * 1894-05-08 Spinning machinery
US2276494A (en) * 1939-10-31 1942-03-17 Rca Corp Web feeding apparatus
US2499699A (en) * 1947-06-06 1950-03-07 Magnecord Inc Wire and tape driving means
US2667313A (en) * 1948-07-30 1954-01-26 Deering Milliken Res Trust Tension device
DE830655C (de) * 1950-09-15 1952-02-07 Walter Fischer Steuerung der Tupferrollen an Bogenanlegern fuer Druckereimaschinen
US3001733A (en) * 1958-04-14 1961-09-26 Clevite Corp Tape transport mechanism in magnetic recording and/or reproducing apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210308946A1 (en) * 2020-04-07 2021-10-07 Bondtech Ab Filament feeding adjustment device

Also Published As

Publication number Publication date
CH386045A (fr) 1964-12-31
GB916395A (en) 1963-01-23
ES270326A1 (es) 1961-12-16

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