US3612428A - Traverse mechanism useful in textile machines - Google Patents

Traverse mechanism useful in textile machines Download PDF

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Publication number
US3612428A
US3612428A US833575A US3612428DA US3612428A US 3612428 A US3612428 A US 3612428A US 833575 A US833575 A US 833575A US 3612428D A US3612428D A US 3612428DA US 3612428 A US3612428 A US 3612428A
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United States
Prior art keywords
follower
segment
wider
narrower
grooves
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Expired - Lifetime
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US833575A
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English (en)
Inventor
Rudolf Hohle-Halske
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Individual
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Individual
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2806—Traversing devices driven by cam
    • B65H54/2809—Traversing devices driven by cam rotating grooved cam
    • B65H54/2812—Traversing devices driven by cam rotating grooved cam with a traversing guide running in the groove
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide
    • Y10T74/18304—Axial cam
    • Y10T74/18312—Grooved

Definitions

  • Shurtleff ABSTRACT Traverse mechanism for the winding of yarns, threads, and the like on spools with a reciprocating thread guide driven by a compound threaded spindle reciprocally driving a shoe follower with one segment riding in oppositely helical arranged grooves or threads crossing each other at least once and another segment of said shoe follower guiding it through parabolic or arcuate thread reversal segments of cross section different from that of the helical arranged threads.
  • traverse devices For the traverse of threads, yarns, etc., during their winding on spools, traverse devices are known wherein the yarn guide is conducted between parallel rails or bars and is driven by a follower device.
  • the follower and thread guide are moved back and forth by means of a rotating, compound threaded spindle having helical grooves or threads of opposite hand which cross at least once.
  • the follower In order to assure an effective guidance of the follower at the thread crossover points, the follower has a shuttlelike form. (See for example, German Pat. No. 422,401).
  • Such a roller has to absorb the thrust forces, which bring about direction reversal of the follower and yarn guide, which thrust forces are considerably increased with a higher rate of traverses.
  • the thrust forces which are of particular concern occur between roller and roller axle during travel through the thread reversal zones.
  • the higher the rate of traverses the greater must be the diameter of the roller and of the roller axle in order to withstand the direction changing thrust forces. Otherwise, the roller and/or its axle can withstand the stresses only for a limited span of time because the thrust forces acting on the roller and its axle, on increase of rate of traverses, increase so severely that roller and axle soon become damaged through wear or deformation or breakage.
  • Such guide mechanisms are composed of a number of parts, which are subject to the same damaging efiects as above-described at the higher rates of traverses, whereby such mechanisms have little, if any, use in traverse mechanisms operating at relatively high rates of traverse.
  • the follower is a diamond-type or shuttle-form shoe which carries the thread guide and has at its free end trapezoidal or triangular profile (See German Pat. No. 953,864).
  • the disadvantage of this arrangement lies essentially in its performance at higher traverse rates.
  • the shoe of the follower is pressed out of the grooves in radial direction by the radial force components acting on it in the passage through the grooves.
  • a spring used to hold the shoe in the helical grooves or threads is not capable at these rates of providing a sure tracking of the shoe in the groove bottom at the thread crossings, with the result that there is an increased wear and breakage of the follower.
  • the follower consists of a single piece or of several pieces rigidly joined with one another. It has stepped segments corresponding to the stepped, thread-within-thread helical grooves of the spindle.
  • the helical grooves are interconnected at their ends by an arcuate or parabolic, simple groove or thread, the latter providing the thread reversal of the spindle grooves.
  • the narrower segment of the follower functions in the inner, narrower groove course, while its wider segment functions as a guide at the thread reversal zones in the simple groove or thread thereof. The wider segment contacts the groove wall only at the thread reversal zones.
  • the guiding of the follower is taken over at the thread reversal curves of the spindle by the upper, wider part of the follower.
  • the lower, narrower part of the follower does not touch the sidewalls of the groove at the thread reversal zones.
  • the lower, narrower part of the follower functions exclusively in the helical arranged threads, and the upper, wider part of the follower preferably does not touch the sidewalls of the helical arranged threads.
  • the lower, narrow part of the shoe follower has very nearly parallel sidewalls or slide flanks.
  • An especially smooth travel of the shoe follower can be achieved, according to the invention, by longitudinally bowing its lower, narrower part in contours corresponding to the arcuate contours of the narrower, inner groove of the counter helical threads or grooves.
  • the flanges or sides of the upper wide part of the follower can be planar in the longitudinal middle portion. The follower thereby rides through the thread reversal zones with sliding contact only between points near opposite ends of said sides, whereby an especially smooth running is achieved.
  • the helical threads or grooves have a substantially T-shaped cross section, and the upper, wider part of the follower runs in the helical grooves preferably at a slight clearance with the sides of the outer groove during the travel of the lower, narrower segment through the inner groove. Preferably there is little play between either part and their corresponding helical groove segments. Only in the reversal places does the upper, wider part take over the actual guidance of the shoe follower.
  • the compound threaded spindle is composed of helical grooves of opposite hand of simple cross section, e.g., a simple square thread.
  • the spindle has a larger diameter at the thread reversal zones to provide a longitudinally arcuate shoulder against which a side of the wide segment of the shoe follower rides through the thread reversal zone.
  • This construction provides the equivalent of a thread-within-thread groove only immediately preceding and following each thread reversal point. This form is considerably simpler and more economically produced than a form in which the thread-within-thread groove extends throughout the helical threads or grooves.
  • FIG. 1 is a plan view of the end fragment of a compound threaded spindle and shows the arcuate thread reversal zone at one end of said spindle;
  • FIG. 2 is a fragmentary transverse cross section of the helical grooves or threads and the shoe follower riding therein;
  • FIG. 3 is a fragmentary plan view of the compound threaded spindle at a crossing of the helical grooves or threads of opposite hand;
  • FIG. 4 is fragmentary, transverse cross section of the arcuate, thread-reversal groove taken on section plane 4-4 of FIG. 1;
  • FIGS. 5, 6 and 7, respectively, are a side elevation, end elevation and top plan view of one embodiment of a shoe follower
  • FIG. 8 is a view similar to FIG. 1 of another embodiment of a compound threaded spindle and embodying simple helical grooves and thread-within-thread grooves only adjacent the thread reversal zones;
  • FIG. 9 is a top plan view of another embodiment of a shoe follower.
  • the compound threaded spindle l embodies a set of helical grooves or threads 2 and 2 of opposite hand in its circumference.
  • the helical grooves 2 and 2' are thread-within-thread grooves having an outer, wider groove segment 2a and a narrower, inner groove segment 2b. The latter is a groove in the base of the outer groove 2a.
  • the helical grooves 2 cross each other one or more times in the manner shown in FIG. 3.
  • the thread reversal grooves 3 are simple threads or grooves, i.e., of a simple profile such as a square thread.
  • the width of the grooves 3 is at least equal to the width of the outer grooves 2a of the helical grooves 2.
  • the depth of the grooves 3 are at least equal to the depth of the lower wall of the narrower groove segments
  • the shoe follower 5 of FIGS. 5-7 comprises a shoe body portion and threaded shank 4. The latter is used to attach the shoe follower to a yarn traverse guide mechanism which guides the yarn back and forth as it is being wound on a spool.
  • the shoe follower 5 preferably is a one-piece construction and preferably is made of an abrasionresistant polyarnide plastic such as Akulon (trademark).
  • the two sidewalls 6 and 7 of the narrower shoe follower segment 5a have a contour corresponding to the contour 8 of the sidewalls of the narrower, inner groove segment 21:.
  • the narrower segment 5a is longitudinally bowed in a curvature corresponding substantially to the curvature of the bottom wall of the narrower groove segment 2b and may be tapered or rounded at its respective ends with the major portion of said segment having a rectangular cross section of the type shown in FIG. 2.
  • FIG. 8 is a rotatable spindle 9 having end segments 9a of larger diameters than the main or middle segment 91;.
  • the latter has in its cylindrical surface helical grooves of opposite hand, which grooves 20 and 2d are simple grooves such as the square thread type shown in FIG. 4 but having a width corresponding substantially to the width of the narrower segment 5a of the shoe follower.
  • the shoe follower rides in the helical grooves 20 and 2d with only its narrower segment 5a in said grooves.
  • the larger diameter ends 9a provide a longitudinally curved shoulder 11 against which one side of the wider segment 5b of the shoe follower rides through the thread reversal zones 10.
  • the respective groove cross sections preceding and following the thread reversal zone 10 correspond to the cross sections shown in FIG. 2 with the circumference of spindle segment 91: being at the phantom line 13.
  • the cross section at the thread reversal zone 10 corresponds to the simple thread cross section shown in FIG. 4.
  • the shoe follower 5' of FIG. 9 has its wider segment 5b in the form of an elongated oval as viewed in plan with, however, substantially flat or planar, longitudinal midportions 14 of its sidewalls.
  • This shape is advantageous in that the portions of the sides of the wider segment 5b contact the parabolic or arcuate grooves at the thread reversal zones near the respective longitudinal ends of the wider segment. This shape provides especially good guidance of the shoe follower in the thread reversal zones 3 and/or 10.
  • a traverse mechanism useful in devices for winding of yarns, threads and the like on spools which comprises a rotatable spindle having on its circumference helical grooves of opposite hand, said grooves crossing each other at intervals on said circumference, the ends of said helical grooves being interconnected by a longitudinally arcuate, thread reversal groove, said helical grooves having throughout their lengths a thread-within-thread composed of a wider, outer groove segment and a narrower, inner groove segment in the base of said wider groove segment, the arcuate groove of said thread reversal segments being of a depth equal to or greater than the total depth of said helical grooves and having a width in the base portion thereof greater than the width of said inner, narrower grooves, and a shoe follower riding in said grooves, said shoe follower having a narrower follower segment slidably engaged in and guided by the lower, narrower groove segment and a wider follower segment which is narrower than said wider groove segment and is a
  • a traverse mechanism as claimed in claim 7 wherein said narrower follower segment is longitudinally bowed in a contour corresponding to the arcuate contour of said helical grooves 110.

Landscapes

  • Winding Filamentary Materials (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
US833575A 1968-06-15 1969-06-16 Traverse mechanism useful in textile machines Expired - Lifetime US3612428A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681760659 DE1760659A1 (de) 1968-06-15 1968-06-15 Changiervorrichtung fuer Textilmaschinen

Publications (1)

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US3612428A true US3612428A (en) 1971-10-12

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US833575A Expired - Lifetime US3612428A (en) 1968-06-15 1969-06-16 Traverse mechanism useful in textile machines

Country Status (7)

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US (1) US3612428A (de)
CH (1) CH493409A (de)
DE (1) DE1760659A1 (de)
FR (1) FR2010979A1 (de)
GB (1) GB1268535A (de)
LU (1) LU58833A1 (de)
NL (1) NL6908953A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3768745A (en) * 1971-07-07 1973-10-30 Schweiter Ag Maschf Yarn guiding device for machine winding cross wound bobbins
US4017567A (en) * 1971-01-30 1977-04-12 Nukem G.M.B.H. Process for the production of block fuel elements for gas cooled high temperature power reactor
US4657195A (en) * 1984-11-06 1987-04-14 Murata Kikai Kabushiki Kaisha Traverse motion
US4760907A (en) * 1986-09-29 1988-08-02 Sundstrand Corporation Variable lead differential travel limiting mechanism
US5762277A (en) * 1995-10-02 1998-06-09 W. Schlafhorst Ag & Co. Traverse mechanism for yarn guides of a winding device
US6119973A (en) * 1999-01-29 2000-09-19 Owens Corning Fiberglas Technology, Inc. Reciprocating apparatus and cam follower for winding a package

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2628501A1 (de) * 1976-06-25 1978-01-05 Karlsruhe Augsburg Iweka Changiereinrichtung fuer aufspulmaschinen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251838A (en) * 1939-03-17 1941-08-05 American Thread Co Reciprocating mechanism
US3334829A (en) * 1965-12-28 1967-08-08 Monsanto Co Traverse device
US3373949A (en) * 1964-10-21 1968-03-19 British Nylon Spinners Ltd Yarn winding mechanism

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2251838A (en) * 1939-03-17 1941-08-05 American Thread Co Reciprocating mechanism
US3373949A (en) * 1964-10-21 1968-03-19 British Nylon Spinners Ltd Yarn winding mechanism
US3334829A (en) * 1965-12-28 1967-08-08 Monsanto Co Traverse device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017567A (en) * 1971-01-30 1977-04-12 Nukem G.M.B.H. Process for the production of block fuel elements for gas cooled high temperature power reactor
US3768745A (en) * 1971-07-07 1973-10-30 Schweiter Ag Maschf Yarn guiding device for machine winding cross wound bobbins
US4657195A (en) * 1984-11-06 1987-04-14 Murata Kikai Kabushiki Kaisha Traverse motion
US4760907A (en) * 1986-09-29 1988-08-02 Sundstrand Corporation Variable lead differential travel limiting mechanism
US5762277A (en) * 1995-10-02 1998-06-09 W. Schlafhorst Ag & Co. Traverse mechanism for yarn guides of a winding device
US6119973A (en) * 1999-01-29 2000-09-19 Owens Corning Fiberglas Technology, Inc. Reciprocating apparatus and cam follower for winding a package

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Publication number Publication date
CH493409A (de) 1970-07-15
LU58833A1 (de) 1969-11-04
GB1268535A (en) 1972-03-29
FR2010979A1 (de) 1970-02-20
NL6908953A (de) 1969-12-17
DE1760659A1 (de) 1972-03-23

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