US3069745A - Stretch-spooling machines - Google Patents

Stretch-spooling machines Download PDF

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Publication number
US3069745A
US3069745A US798100A US79810059A US3069745A US 3069745 A US3069745 A US 3069745A US 798100 A US798100 A US 798100A US 79810059 A US79810059 A US 79810059A US 3069745 A US3069745 A US 3069745A
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Prior art keywords
thread
roller
winding
stretch
linear velocity
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US798100A
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English (en)
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Schippers Heinz
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Oerlikon Barmag AG
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Barmag Barmer Maschinenfabrik AG
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    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D7/00—Collecting the newly-spun products
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
    • D01D5/00—Formation of filaments, threads, or the like
    • D01D5/12—Stretch-spinning methods
    • D01D5/16—Stretch-spinning methods using rollers, or like mechanical devices, e.g. snubbing pins

Definitions

  • This invention in general, relates to stretch-spoofing processes and machines in which synthetic threads such as threads composed of unbroken filaments may be first stretched to a multiple of their original length and then wound in untwisted state.
  • the stretching of threads composed entirely of synthetic filaments was generally accompanied with a twisting of the filaments about each other.
  • a twisting device was employed as a part of the stretch-winding mechanism.
  • the well known ring twist device was positioned at the outlet side of the stretching mechanism to twist the stretched threads as well as wind them. It has, however, also been suggested that such synthetic filament threads, after the stretching, be simply wound and that a twisting, if need be, be carried out later in a separate operation.
  • a simplification and acceleration of the individual operations and a greater choice of types of the further processing of the threads results from a non-twist winding.
  • the present invention is predicated upon improving upon these disadvantages occurring in the known stretch spooling machines.
  • the machine of my invention can be used in the stretching of threads composed of unbroken, synthetic polymer filaments by either a single or double stretching operation of the threads, according to the cold or hot-stretching process, in which the threads are stretched to a number of times their original length and then wound in untwisted state.
  • the drive for the winding spool or bobbin is a drive roller in frictional drive with the thread winding.
  • the drive roller is driven at the same peripheral velocity or at a peripheral velocity lower than the peripheral velocity of the last stretching roller to compensate wholly or at least in part for the shrinkage of the thread in the thread path between the last stretching roller and he winding bobbin or spool.
  • the drive roller and spool or bobbin are mounted directly beneath the last stretching roller.
  • a traverse-motion thread 3,069,745 Patented Dec. 25, 1962 guide for'distributing the thread in even layers on the spool or bobbin is positioned immediately ahead of the contact point of the running thread with the winding.
  • the freshly stretched thread is not subjected to any undesirable sharp deflections.
  • the thread runs to the winding spool in loose state and without tension, so that it can shrink on its way to the winding. It can be taken up on the spool at constant linear speed, usually somewhat reduced, however, in comparison to the linear speed of discharge from the last stretching roller, almost without tension.
  • a small residual shrinkage of the thread may occur after winding without detrimental eilectin fact, this shrinkage may improve the tightness and compactness of the winding.
  • a transverse-motion thread guide designed as a rocking lever, which engages, through a follower pin, an endless curved groove of a rotating cylinder.
  • Each rocking lever may be driven individually or several may be gauged by a connecting bar so as to be driven from one follower pin and grooved cylinder.
  • the posi tion of the pin and of the rotating cylinder can be made such that the reciprocal stroke across the rotating cylinder is considerably smaller, for example, less than 50%, than the reciprocal distribution stroke of the thread guide at the winding spool.
  • the rocking lever can be mounted to slide on its pivot in the longitudinal direction.
  • the follower pin riding in the curved groove of the rotating cylinder has a slide member oscillatable in guides extending in the general direction of oscillation of the rocking lever.
  • the rocking lever may have at one end a slot guide through which extends a shaft or bolt serving as the pivot axis.
  • the slide member of the follower pin may be a slide ring, a roller or the like guided in members forming a slot, which may be straight or an are curved oppositely to the arc of normal swinging movement of the rocker ever.
  • other devices can be provided which bring about a periodic thread distributor stroke change or displacement and serve to form more gentle winding edges or provide special winding forms. This can be achieved by suitable axial displacement of the rotating cylinder, or by oscillating motion imparted of the rocking lever bearing.
  • the speed with which the thread guide is moved back and forth can be controlled in a desired pattern by variable speed outputs in the drive for rocking the arm.
  • the thread distribution devices with the transverse-motion thread guide can be driven in each case individually or in groups or all in common, and with these drive arrangements they can be shielded with a protective wall to such an extent that only the outermost end of the rocker arm and thread guide remain exposed.
  • FIG. 1 is a side elevation of a stretch-spoofing machine, with portions thereof in cross-section to better illustrate individual parts thereof;
  • FIG. 2 is a partial, front elevation of the embodiment of FIG. 1 showing two units mounted along the length of the machine;
  • FIG. 3 is a cross-sectional view taken on section- 3-3 of FIG. I
  • FIG. 4 is a perspective view of the thread guide of the rocker arm
  • FIG. 5 is a partial view of the machine showing a modification in the thread-laying mechanism
  • FIG. 6 is an enlarged cross-sectional view of the guide for the thread-laying mechanism of FIG. 5.
  • the embodiment of a stretch-spoofing machine of the present invention comprises a long machine frame 1, shown only in part, having a vertical support 2 at each end thereof and as many intermediate vertical supports (not shown) as is necessary to provide the required rigidity.
  • the top of the frame 1 hast a pair of parallel horizontal bars 3 on which are mounted, at an upward angle to the horizontal, journal shafts 4 for supporting thread supply spools 5 having a wound body B of threads of synthetic polymer filaments.
  • Each of the thread supply spools 5 compose the upper unit of individual stretch-spoofing mechanisms described hereinafter.
  • the thread T is drawn off the spool for frictional contact with a drive roller 6 mounted on a rotatably driven shaft 7 running the length of the machine frame 1.
  • the thread T is held in frictional contact with the drive roller 6 by a pressure roller 8 after the thread T has passed about the major portion of the circumference of the pressure roller
  • the pressure roller 8 is urged by gravity against the drive roller 6 and is rotatably mounted on a pair of pivot arms 9 pivotably mounted at 10 on the machine frame 1.
  • a reciprocal thread guide 11 may be interposed between the spool 5 and the rollers 6, 8 to reciprocate the thread path back and front on the surfaces of the rollers 6 and 8 and thereby prevent uneven wear on the rollers which would otherwise arise through continued passage of the thread over one path on the rollers.
  • Each of the thread guides 11 on one side of the machine frame are reciprocated in unison by means of mounting arms 12 for each thread guide 11, each arm 12 being attached to a reciprocable bar 13 mounted for reciprocal movement in bearing members 14.
  • the rollers 6, 8 draw the thread T off the spool 5 at a constant linear thread velocity.
  • the thread T then travels downwardly to an upper stretching roller mechanism and thereafter passes in a downward direction to a lower stretching roller mechanism.
  • the upper stretching roller mechanism is composed of a rotatably I driven roller 15 driven at a constant angular velocity providing approximately the same linear speed to the thread as the linear speed imparted by the rollers 6, 8 or a greater velocity if stretching is to be imparted to the thread between the rollers 6, 8 and the roller 15.
  • the canted' relationship between the rollers 15 and 17 causes the thread paths around the two rollers to move progressively outwardly and thus avoid. entanglement of the thread in its plural paths about the two rollers.
  • the guide roller 17 has mounted thereon a ring 18 which prevents accidental' displacement of the thread path inwardly of its desired path of travel.
  • the guide roller 17 is journalled for free rotation at 19 in a side plate 20 of the machine frame 1.
  • the lower stretching roller mechanism is of similar construction to the upper roller stretching mechanism and is composed of a driven roller 16 and canted guide roller 21 having a ring 22 and journalled in the plate 20 at 23.
  • the linear velocity imparted to the thread by the lower stretching roller 16 is usually greater than the velocity imparted by the roller 15-thereby providing a stretch to the thread running between the two roller mechanisms.
  • suitable heated bars heated electrically or by means of steam, Dowtherm vapors or the like, may be mounted on the frame 1 in positions where the heating devices contact the running thread between the upper and lower stretching roller mechanisms.
  • the rollers 15 and 16 may be provided with rings 24 and 25, respectively, at the inner ends thereof to prevent accidental displacement of the running thread off the rollers 15 and 16.
  • a drive shaft 26 is rotatably journalled in the frame 1 and housings 27.
  • a gear 28 is driven by worm gear 29.
  • the worm gear drive 29 for each pair of opposed rollers in the upper horizontal rows is driven by a common drive shaft 30 rotatably mounted in bearings 31 on the machine frame.
  • the drive shaft 30 is driven at a constant speed by a power source (not shown).
  • the right hand lower row of rollers is driven by a similar gear mechanism activated by drive shaft 32, which rotatably drives the gears 33.
  • worm gear drives similar to those previously described, which worm gear drives extend along the left hand side of the frame in a manner similar to that shown for the worm gear drive on the right hand side of the frame.
  • the linear take-up velocity of the Winding mechanism may operate at a speed which is equal to the linear velocity of the thread leaving the lower stretching roller or at a take-up velocity which is less than the linear velocity of the thread leaving the lower stretching roller.
  • the thread running between the lower stretching roller and the winding mechanism undergoes a shrinkage. If this shrinkage is to be permitted, the take-up velocity of the winding mechanism must be lower than the linear velocity of the thread leaving the lower stretching roller by an amount equal to the amount of shrinkage occurring between the lower stretching roller and the winding mechanism.
  • the takeup velocity of the winding mechanism is equal to the linear rate of discharge from the lower stretching roller.
  • a spool or bobbin carrier 37 mounted on swinging arms 38, contacts the drive roller 35 with the tangent between the two being substantially in line with the thread path approaching the winding mechanism 34 so as to avoid any sharp corners in the path of thread travel.
  • the swinging arms 38 are pivotally mounted at 40 on fixed arms 39. The spool or bobbin is urged into frictional contact with the drive roller 35 by providing an. arm 41 having a weight 42, which arm 41 is rigidly connected with swinging arms 38 in a manner to urge the spool or bobbin toward the drive roller 35.
  • the thread on the winding W is wound in even, s11- perposed layers by the provision of a reciprocable thread layer 43 mounted at the end of a swinging arm 44. This arm oscillates back and forth during the winding operation to distribute the thread in even superposed layers in the winding W.
  • the thread layer 43 is positioned immediately ahead of the point of contact between the drive roller 35 and the winding W and its guiding contact with tlflgunning thread is positioned so that there is no sharp angle as the thread passes through the thread layer 4 i ding mechanism 34.
  • the reciprocal thread layer 43 follows an arcuate path during the oscillation of the swinging arm 44 by virtue of the pivotal mounting of the swinging arm 44 on axis arm 45, which, in turn, is pivotably mounted in a fixed bearing arm 46 by means of a shaft 47 rotatably mounted in bearing arm 46.
  • a triangular reinforcing plate 48, connecting swinging arm 44 and axis arm 45, provides additional rigidity.
  • the swinging arm 44 is oscillated by means of a follower pin 49 extending outwardly therefrom at a point intermediate the ends of the arm 44.
  • the follower pin 49 rides in an endless, curved, camming groove 50 in the cylindrical surface of a roller 51.
  • the roller 51 is driven rotatably by a rotatably mounted drive shaft 52 rotatably driven by a power source (not shown).
  • the camming groove 50 is an endless groove which arcuately bends in one direction over 180 of the roller circumference and arcuately bends in a similar manner in the opposite direction over the other 180 of the roller surface.
  • FIGS. 3 and show a modification for the mounting of the swinging arm whereby the arc normally taken by the oscillation of the thread guide 43 may be either completely or partially flattened out.
  • a pendulous or swinging arm 54 on the shaft of a fixed bolt 53 is mounted a pendulous or swinging arm 54.
  • the arm 54 is mounted for pivotal movement on the bolt 53 and also may move axially on said bolt by the provision of an axial slot 55 through which the shaft of the bolt 53 extends.
  • the pendulous or swinging movement is imparted to the arm 54 by a follower pin 56 extending outwardly from the arm 54 at a point intermediate the ends thereof.
  • the follower pin 56 rides in a curved, endless, camming groove 57 provided in the cylindrical surface of a rotatable drum 58, which, in turn, is rotatably driven by the drive shaft 59.
  • the drive shaft 59 is rotatably driven at a constant speed by a power source (not shown).
  • the path of oscillating movement taken by the swinging arm 54 is controlled by a slide head designated generally at 60.
  • the slide head 60 is a rectangular plate having upper and lower guiding grooves 61 and 62, respectively.
  • the slide head 60 rides in the slot 63 formed by the opposing front plates or brackets 66 and 67.
  • the follower pin 56 extends through an aperture 64 in the slide head 60 and is loosely positioned therein so as to be rotatable with respect to the slide head 60.
  • the guiding motion of the slide head 60 is imparted through the follower pin 56 and, coupled with the mounting of the swinging arm 54 by the slotted connection 55, the pendulous motion of the swinging arm 54 is changed to a straight line motion rather than an arcuate motion.
  • the' path' of the thread guide '43 at the end of the swinging arm 54 can be made to follow a more linear reciprocal path rather than an arcuate path. If desired, other paths of reciprocal motion may be attained by making the slot I 63 curved rather than linear.
  • a protective wall 68 mounted at a suitable point on the machine frame. This wall extends downwardly over a major portion of the Swinging arm and its associated actuating mechanism.
  • drawing off of the thread from the spools 5 may be improved by providing a pigtail guide 69, or a roller if desired, which is positioned at the outer end of the spool 5. This guide point facilitates the drawing off of the thread Tower the outer end of the spool 5.
  • FIG. 4 One type of thread guide which may be used at the end of the swinging arms 44 or 54 is shown in FIG. 4 wherein the thread guide has a slipper-like shape.
  • the thread guide has an arcuately grooved face 70 and terminates in a raised portion 71. The thread guiding.
  • a tapered slot 72 formed between the raised portion 71 on each side of the thread guiding member.
  • my invention provides a machine for stretchspooling of synthetic polymer threads or filaments with close control of stretching and winding conditions whereby the stretched and wound thread is of substantially uniform quality.
  • the individual stretch-spoofing units are provided.
  • a second roller mechanism positioned below said first mechanism and operable to impart a thread linear velocity greater than the thread linear velocity on said first roller mechanism to stretch the thread running therebetween
  • means including a rotatably driven roller above said first mechanism for supplying thread at a predetermined linear velocity, winding mean below said second mechanism for winding at a constant linear velocity the thread leaving said second mechanism, said winding means including a friction drive roller operable on thread wound by said winding means, and reciprocal means including a thread guide for laying the thread in layers on a spool on said winding mechanism with the thread guide being positioned between said friction drive roller and said thread wound by said winding means.
  • a first roller mechanism a second roller mechanism positioned below said first mechanism and operable to impart a thread linear velocity greater than the thread linear velocity on said first roller mechanism to stretch the thread running therebetween, means above said first mechanism for supplying thread at a predetermined linear velocity, winding means below said second mechanism for winding at a constant linear velocity the thread leaving said second mechanisms, and a pivotally-mounted, pendulous lever having thread guide means on an end thereof located adjacent said winding means, said pendulous lever being actuated by a follower mechanically connected with said pendulous lever, which follower rides in a curved, endless groove in the surface of a rotatable drum.
  • a first roller mechanism a second roller mechanism positioned below said first mechanism and operable to impart a thread linear veloci y greater than the thread linear velocity on said first roller mechanism to stretch the thread running therebetween, means above said first mechanism for supplying thread at a predetermined linear velocity, winding means below said second mechanism for winding at a constant linear velocity the thread leaving said second mechanism, said winding means including a friction drive roller operable on thread wound by said winding means, a pendulous lever having" a thread guide on an end thereof located adjacent said winding means, said pendulous lever being slidably and pivotally mountedon an axis positioned at a point above said winding means, said pendulous lever being actuated by a; follower mechanically connected with said pendulous lever, which follower rides in a curved, endless groove in the surface of a rotatable drum, and guide means operatively connected with said pendulous lever for translating the path of motion of said pendul
  • a first roller mechanism a second roller mechanism positioned below said first mechanism and operable to impart a thread linear velocity greater than the thread linear velocity on said first roller mechanism to stretch the thread running therebetween
  • means including a rotatably driven roller above said first mechanism for supplying thread at a predetermined linear velocity, winding means below said second mechanism for winding at a constant linear velocity the thread leaving said second mechanism, said constant linear velocity lying between (a) the linear velocity of the thread leaving the second roller mechanism and (b) the last-mentioned linear velocity less the amount of shrinkage occurring in the running thread between said second roller mechanism and said winding means
  • said winding means including a friction drive roller operable on the thread Wound by said winding means
  • reciprocal means including a thread guide for laying the thread in layers on a rotating spool on said winding means with the thread guide being positioned between said friction drive roller and said thread wound by said winding means.
  • a first roller mechanism a second roller mechanism positioned below said first mechanism and operable to impart a thread linear velocity greater than the thread linear velocity on said first roller mechanism to stretch the thread running therebetween, means above said first mechanism for supplying thread at a predetermined linear velocity, winding means below said second mechanism for Winding at a constant linear velocity the thread leaving said second mechanism, said constant linear velocity lying between (a) the linear velocity of the threadlleaving said second mechanism and ([2) the last-mentioned linear velocity less the amount of shrinkage occurring in the running thread between said second mechanism and said winding means, and a pivotally-mounted, pendulous lever having thread guide means on an end thereof located adjacent said winding means, said pendulous lever being actuated by a follower mechanically connected with said pendulous lever, which follower rides in a curved, endless groove in the surface of a rotatable drum.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
US798100A 1958-03-12 1959-03-09 Stretch-spooling machines Expired - Lifetime US3069745A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3198445A (en) * 1963-10-25 1965-08-03 Monsanto Co Yarn winding apparatus
US3238592A (en) * 1964-04-15 1966-03-08 Chemcell 1963 Ltd Device for heating and stretching yarn
US3261154A (en) * 1963-10-21 1966-07-19 Duplan Corp Yarn guiding and feeding means for a false twisting machine
US3454998A (en) * 1966-03-08 1969-07-15 Klinger Mfg Co Ltd Yarn treating apparatus and method
US3604659A (en) * 1968-04-24 1971-09-14 Rieter Ag Maschf Method of drawing and winding a thread of endless filament and apparatus for implementing same
US3905076A (en) * 1972-03-29 1975-09-16 Fiber Industries Inc Drawing apparatus
US4077578A (en) * 1976-02-13 1978-03-07 Baxter Travenol Laboratories, Inc. Machine for winding hollow filaments
US4825517A (en) * 1984-11-15 1989-05-02 Phillips Petroleum Company Apparatus for drawing and interlacing

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1267080A (en) * 1916-10-31 1918-05-21 Oscar I Judelshon Strip-winding machine.
US2184390A (en) * 1936-10-26 1939-12-26 Ind Rayon Corp Thread guide mechanism
US2218504A (en) * 1937-02-24 1940-10-22 Goodrich Co B F Apparatus for preparing cord for making articles such as pneumatic tires, belts, andthe like
US2271854A (en) * 1941-03-13 1942-02-03 Us Rubber Co Cord stretching apparatus
US2289232A (en) * 1939-07-14 1942-07-07 Du Pont Method and apparatus for producing filamentary structures
US2728973A (en) * 1950-08-11 1956-01-03 Inventa Ag Device for stretching synthetic silk
US2807863A (en) * 1956-06-22 1957-10-01 Du Pont Multi-step stretching of nylon cords
US2846752A (en) * 1956-03-16 1958-08-12 Goodrich Co B F Method of reducing elongation of cords
US2950068A (en) * 1955-12-05 1960-08-23 American Enka Corp Traversing mechanism for winding machine
US2962793A (en) * 1956-11-19 1960-12-06 North American Rayon Corp Yarn stretching device
US2993260A (en) * 1958-02-20 1961-07-25 American Enka Corp Differentially heated draw pin

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1267080A (en) * 1916-10-31 1918-05-21 Oscar I Judelshon Strip-winding machine.
US2184390A (en) * 1936-10-26 1939-12-26 Ind Rayon Corp Thread guide mechanism
US2218504A (en) * 1937-02-24 1940-10-22 Goodrich Co B F Apparatus for preparing cord for making articles such as pneumatic tires, belts, andthe like
US2289232A (en) * 1939-07-14 1942-07-07 Du Pont Method and apparatus for producing filamentary structures
US2271854A (en) * 1941-03-13 1942-02-03 Us Rubber Co Cord stretching apparatus
US2728973A (en) * 1950-08-11 1956-01-03 Inventa Ag Device for stretching synthetic silk
US2950068A (en) * 1955-12-05 1960-08-23 American Enka Corp Traversing mechanism for winding machine
US2846752A (en) * 1956-03-16 1958-08-12 Goodrich Co B F Method of reducing elongation of cords
US2807863A (en) * 1956-06-22 1957-10-01 Du Pont Multi-step stretching of nylon cords
US2962793A (en) * 1956-11-19 1960-12-06 North American Rayon Corp Yarn stretching device
US2993260A (en) * 1958-02-20 1961-07-25 American Enka Corp Differentially heated draw pin

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3261154A (en) * 1963-10-21 1966-07-19 Duplan Corp Yarn guiding and feeding means for a false twisting machine
US3198445A (en) * 1963-10-25 1965-08-03 Monsanto Co Yarn winding apparatus
US3238592A (en) * 1964-04-15 1966-03-08 Chemcell 1963 Ltd Device for heating and stretching yarn
US3454998A (en) * 1966-03-08 1969-07-15 Klinger Mfg Co Ltd Yarn treating apparatus and method
US3604659A (en) * 1968-04-24 1971-09-14 Rieter Ag Maschf Method of drawing and winding a thread of endless filament and apparatus for implementing same
US3905076A (en) * 1972-03-29 1975-09-16 Fiber Industries Inc Drawing apparatus
US4077578A (en) * 1976-02-13 1978-03-07 Baxter Travenol Laboratories, Inc. Machine for winding hollow filaments
US4825517A (en) * 1984-11-15 1989-05-02 Phillips Petroleum Company Apparatus for drawing and interlacing

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