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US2621390A - Roll system - Google Patents

Roll system Download PDF

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Publication number
US2621390A
US2621390A US20481A US2048148A US2621390A US 2621390 A US2621390 A US 2621390A US 20481 A US20481 A US 20481A US 2048148 A US2048148 A US 2048148A US 2621390 A US2621390 A US 2621390A
Authority
US
United States
Prior art keywords
roll
rolls
idler
filamentary material
contact
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
US20481A
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English (en)
Inventor
Nield Arnold
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of US2621390A publication Critical patent/US2621390A/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
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D02J1/225—Mechanical characteristics of stretching apparatus
    • 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
    • B65H51/28—Arrangements for initiating a forwarding operation
    • 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
    • D01D10/00—Physical treatment of artificial filaments or the like during manufacture, i.e. during a continuous production process before the filaments have been collected
    • D01D10/04—Supporting filaments or the like during their treatment
    • D01D10/0436—Supporting filaments or the like during their treatment while in continuous movement
    • D01D10/0445—Supporting filaments or the like during their treatment while in continuous movement using rollers with mutually inclined axes
    • 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

  • This invention relates to an improved roll system which enables a filamentary material e. g. a yarn, filament, wire, cord, tape, ribbon or band to make adequate frictional contact with a moving roll surface without encircling the moving roll. More particularly it relates to an improved roll system for use in the conveying of yarns and filaments and is of particular interest in relation to roll systems where the rolls rotate at high speeds e. g. in the drawing or winding of artificial yarns and filaments.
  • a filamentary material e. g. a yarn, filament, wire, cord, tape, ribbon or band
  • Another method of preventing slippage frequently used in the textile trade is to use a single idler roll the axis of which is slightly off parallel with that of the driving roll, so that a filamentary material e. g. a yarn looped a number of times round the two rolls makes a number of loops round the rolls without overlapping and thereby makes contact with the driving roll over a comparatively large arc of the circumference thereof, the total of a number of arcs of contact being often equivalent to more than one complete turn round the driving roll.
  • a filamentary material e. g. a yarn looped a number of times round the two rolls makes a number of loops round the rolls without overlapping and thereby makes contact with the driving roll over a comparatively large arc of the circumference thereof, the total of a number of arcs of contact being often equivalent to more than one complete turn round the driving roll.
  • Such an apparatus needs far less gearing and undergoes less vibration than that normally used but difliculty is experienced in stringing up each driving roll and its attendant idler roll as the stringing up operation normally takes place while the rolls are in motion and the yarn or filament has to be passed into the interior portion of the machine and near the moving parts to encompass the driving roll and its idler roll, while the shaft on which the driving roll is mounted is rotating at a high speed.
  • This stringing up operation is difficult and may be dangerous for the operator.
  • Nip rolls have been used with such a drawing apparatus and while they may be satisfactory in conjunction with feed rolls I find that owing to the high rate of wear they are not satisfactory when used in conjunction with draw rolls.
  • An object of this invention is to provide an improved roll system to enable a filamentary material e. g. a yarn, filament, wire, cord, tape, ribbon or band which makes frictional contact with a moving roll surface to make adequate frictional contact without encircling the moving roll.
  • a further object is the production of an improved roll system for use in the conveying of filamentary material which can be strung up more easily than those of the prior art.
  • a still further object is the provision of an idler roll device for use in the drawing of artificial yarns and filaments and the winding of textile yarn and filamentary materials.
  • Yet a still further object is the provision of an idler roll device for use in conjunction with draw frames having a series of draw rolls mounted on one continuous shaft. Further objects will appear hereinafter.
  • a roll system comprising an idler roll and a driving roll, the axes of which are substantially parallel, characterised in that it also comprises means for ensuring that filamentary material when being transported by the roll system and encompassing said idler roll, makes arcs of contact with but does not encircle the driving roll and means for ensuring that the filamentary material makes more than one loop round the idler roll without overlapping.
  • the means for ensuring that filamentary material encompassing the idler roll makes arcs of contact with but does not encircle the driving roll preferably consists of one or more additional 3 idler rolls which are all encompassed by the filamentary material in the manner illustrated in the attached drawings. It will be appreciated that one or more of these additional idler rolls may be replaced by other supporting means such as bars or guides.
  • the idler roll together with any additional supporting means is so mounted that either the idler roll or the additional supporting means or both may be swung or otherwise moved away from the driving roll during stringing up.
  • the roll system may be strung up-very easily, the filamentary material being wound round the idler roll and other supporting means without any contact being made with the moving driving roll and brought into contact with the driving roll after the system has been strung up.
  • a similar effect may be achieved if desired by moving the driving roll but it will be appreciated that this involves more difficulty in machine design and greatly increases the cost of the machine.
  • the means for ensuring that the filamentary material makes more than one loop round the idler roll may be any of the known spacing devices such as combs or a number of guides which separate the various loops of filamentary material.
  • a preferred method of operation is to mount one of the idler rolls used, slightly 01? parallel with the other supporting means so that it acts as a skew or oblique roll.
  • Another method of operation is the use of ridged or grooved idler rolls or supports. Both the last two methods have the advantage of combining a spacing means with a supporting means.
  • Figure l is a diagram illustrating the general application of the roll system of this invention.
  • the filamentary material l passes to, but does not encircle, the driving roll 2 and is held in contact with the roll 2 over the arc ab by causing it to follow'the path shown in the drawing round the two idler rolls 3 and 4. From the idler roll 4 the filamentary material passes to a further treating zone or normal collecting device.
  • the filamentary material makes a number of loops round the idler rolls 3 and 4 to increase the frictional grip between the filamentary material and the roll 2, and to prevent overlapping of the various loops the axis of rotation of the roll 3 is set just off parallel with the rolls 2 and 4.
  • Figure 2 illustrates a preferred form of the device of this invention applied to the drawing of artificial yarn, wherein yarn licoming from the feed rolls (not shown) makes four turns round the threeidler' rolls 6, l and 8 (roll 3 is slightly off parallel to enable the yarn passing round the rolls 5, I and 8 to make a number of turns without overlapping) during which it is held against the driven draw roll 9 and finally passes from the idler roll 8 to a collecting device (not shown).
  • the three idler rolls are mounted on stub axles which are fastened to a frame Hi which can swivel about axle ll set in the bracket l3 which is attached to the frame of the drawing apparatus.
  • the frame it is fitted with a spring device 12 which presses against the bracket 13 and holds the frame It in the position required for the yarn to make the necessary arcs of contact with the draw roll 9.
  • Figure 3 shows an end view of Figure 2 in which the path of yarn roundthe rolls 6, T, 8 and 9 can be clearly seen, the yarn making contact with the draw" roll over the arc my. It will be appreciated 4 that the yarn actually makes four arcs of contact with the draw roll surface.
  • Figure 4 shows an end view of Figure 2 wherein the frame It has been swung away from the driven draw roll 9 about the axle H by pulling the handle it and thus releasing the spring device 12. It will be seen from this drawing how the yarn can be wrapped round the idler rolls without any contact being made with the moving draw roll which, on the preferred type of draw frame, is one of a series mounted on one continuous driven shaft.
  • any number of idler rolls may be used. I have found that two or three idler rolls are very satisfactory as when two or three are used it is possible to obtain large arcs of contact with simple construction. The use of more than three rolls increases manufacturing costs and the complexity of the apparatus. The idler rolls may if desired make contact with the driven roll but it is preferred that they do not do so as such contact is liable to cause excessive wear and also complicates the design of the apparatus.
  • the rolls may be withdrawn by any usual means, they may for example be slid away from the driving roll along suitable guides. Furthermore it is not necessary that all the idler rolls or other supporting means should be withdrawn from the proximity of the driving roll. Any number may be withdrawn depending upon the type of mountmg used. For example two idler rolls may be mounted on arms which can be moved from the proximity of the driven roll by means of a scissors action.
  • This type of mounting has the advantage that it can be set up so that the pull of the filamentary material holds the idler rolls in close proximity to the driving roll since the path traversed by the filamentary material while in contact with the driving roll is shorter than the path when the filamentary material is out of contact with the driving roll.
  • the construction of the apparatus may therefore be simplified since no holding device such as the spring device illustrated in the drawings is required.
  • the spring device used to hold the idler roll device illustrated in the drawings in position may be replaced by any holding device which will maintain the filamentary material in contact with the driving roll e. g. a bolt, a latch or a weighted balance arm.
  • the path of the filamentary material round the idler rolls and other supporting means will depend upon the mounting thereof and the direction of rotation of the driving roll.
  • the number of loops of filamentary material will depend upon the frictional grip required i. e. referring to the drawing of yarns, for heavy yarns more loops will be required than for lightweight yarns.
  • the amount of contact of the filamentary material with the driving roll depends to some extent on the disposition of the idler rolls or other supporting means.
  • idler roll device of this invention had been described with particular reference to roll systems used for the conveying of yarns it will be appreciated that it may be applied with equal success to all cases Where it is desirable to avoid winding any filamentary material round a driving roll i. e. to avoid using a capstan grip, while ensuring that the filamentary material does not slip over the roll surface.
  • a roll system may be used for example in the textile trade for the gripping of yarns, filaments, ribbons and braids, in the rope trade for the gripping of ropes and cordage of all kinds and in the metal trade for the gripping of Wires, cables and metal bands and strips.
  • the device of this invention may be constructed to any of the materials commonly used in the production of roll machinery. It will however be appreciated that th type of roll surface required is dependent on the type of filamentary material. In the textile trade good results have been obtained using steel rolls or rolls made of light weight alloys e. g. aluminium alloys having a chromium plated surface.
  • Example I idler rolls were mounted at one end of a plate, which was free to swing about its other end in a plane at right angles to the axes of rotation of the polished metal draw roll (3" diameter 6" long), and were so positioned on the plate that their axes of rotation contacted the plate at the apices of a triangle, one axis being 3 to 4 olf parallel with the other two which were parallel to the axis of rotation of the draw roll as illustrated in Figures 2, 3 and 4.
  • This plate was held so that the idler rolls were well away from the draw roll during stringing up but was thereafter swung into a position with the idler rolls arranged round the draw roll so that yarn passing in a triangular path round.
  • the idler rolls was forced into contact with the draw roll on one side of said triangle as illustrated in Fig. 3.
  • the feed roll of this apparatus rotated at revs. per minute, the draw roll at 600 revs. per minute.
  • the yarn produced had a ratio drawn length to undrawn length of 4.95:1 which indicates that there was a minimum amount of slip over the draw roll surface.
  • Example 2 In this example a device similar to that illustrated in Figures 2, 3 and 4 was used but the third roll I was removed so that only two idler rolls were used.
  • a viscose yarn was taken from a package via suitable guides and wound three times round two idler rolls, each 2 inches in diameter, and one 01' which was slightly off parallel, mounted on a movable frame as illustrated in Figures 2, 3 and 4, without making contact with the drawing roll.
  • the yarn passed through a lappet eye to a rin twisting spindle capable of rotating at 6000 revs. per minute.
  • the spindle was set in motion and the idler roll supporting frame swung over so that the filamentary material made contact with the driving roll, rotating at a surface speed of 50 feet per minute.
  • a twist of 10 turns per inch was imparted to the yarn which showed no tendency to slip over the driving roll which in this case acted as a feed roll.
  • a process for forwarding artificial filamentary material by contact of said filamentary material with a driving roll which comprises looping the filamentary material round an idler roll and at least one additional support, which idler roll and support are positioned so that the filamentary material looped round them does not make contact with the drivin roll, and then changing the position of at least one of the members of the group, idler roll, additional support and driving roll so that the filamentary material looped round the idler roll and additional support is caused to make arcs of contact with the driving roll, while said idler roll and additional support are maintained in spaced relation from said driving roll throughout their axial extent.
  • Apparatus- ⁇ or forwarding filamentary material comprisingsa frame. a, driving. roll, a. bracket mounted upon: said; frame and movable from an inoperative to operative position with respect to said driving roll, a plurality of filament supporting elements mountedupon said bracket and extending along axes which are substantially parallel to the axis of said driving roll, eachcoi said elements including a peripheral surface adapted to be engaged by filamentary material, at least one of said elements being rotatable about its axis, said filament supporting element being positioned on said bracket so that in both operative and inoperative positions throughout their axial extent the peripheries of said elements will be spaced from the periphery of said drivin roll, and so that when the bracket is in the operative position filamentary material looped round the filament supporting element makes arcs of contact with the driving roll.
  • Apparatus according to claim 8 in which there are two filament supporting elements both of which are rotatable about their axes.
  • Apparatus for forwarding filamentary material comprising a frame, a driving roll, a bracket mounted upon said frame and movable from an inoperative to an operative position with respect to said driving roll, two filament supporting elements mounted upon said bracket, the first of said elements extending along an axis substantially parallel to the axis of the driving roll and the second of said elements extending along an axis askew to the axis of the driving roll, each of said elements including a peripheral surface adapted to be engaged by filamentary material, both said elements beingrotatable about their axes, said filament supporting elements being positioned on said bracket so that in both operative and inoperative positions throughout their axial extent the peripheries of said elements will be spaced from the periphery of said driving roll, and so that when the bracket is in the operative position filamentary material looped roundthe filament supporting elements makes arcs of contact with the driving roll.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US20481A 1947-04-14 1948-04-12 Roll system Expired - Lifetime US2621390A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB265165X 1947-04-14

Publications (1)

Publication Number Publication Date
US2621390A true US2621390A (en) 1952-12-16

Family

ID=10244858

Family Applications (1)

Application Number Title Priority Date Filing Date
US20481A Expired - Lifetime US2621390A (en) 1947-04-14 1948-04-12 Roll system

Country Status (7)

Country Link
US (1) US2621390A (de)
BE (1) BE481678A (de)
CH (1) CH265165A (de)
DE (1) DE896842C (de)
FR (1) FR964567A (de)
GB (2) GB643516A (de)
NL (1) NL71675C (de)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2715308A (en) * 1950-01-11 1955-08-16 Universal Winding Co Method of and apparatus for twisting and winding
US2747251A (en) * 1950-07-12 1956-05-29 Du Pont Yarn apparatus
US2764012A (en) * 1953-08-05 1956-09-25 American Viscose Corp Fluid processing system for running strand
US2883259A (en) * 1952-01-25 1959-04-21 Severini Goffredo Processes and equipments for the continuous treating of yarns
US2892336A (en) * 1954-02-02 1959-06-30 Pensotti Ambrogio Apparatus for wet-treating threads, particularly viscose rayon threads
US2922296A (en) * 1959-04-29 1960-01-26 Kuljian Corp Thread processing apparatus
US2976671A (en) * 1958-10-30 1961-03-28 American Enka Corp Method of threading drawtwister
US3172187A (en) * 1962-03-14 1965-03-09 Spinner Oy Thread advancing device for thread machines
US3238593A (en) * 1963-04-03 1966-03-08 Zimmer Verfahrenstechnik Thread stretching device
US3844462A (en) * 1970-12-31 1974-10-29 Hughes Aircraft Co Dispensing head for strand material
EP0047348B1 (de) * 1980-09-04 1984-06-27 Badische Corporation Apparat zum Einziehen polymolekularen Fadenmaterials
EP0127334A2 (de) * 1983-05-02 1984-12-05 Toray Industries, Inc. Garnfördereinrichtung; Einführung der Aufwicklung von Garn
US5320294A (en) * 1991-09-20 1994-06-14 H. Stoll Gmbh & Co. Yarn-delivery device
US20060053605A1 (en) * 2004-09-10 2006-03-16 Belmont Textile Machinery Co., Inc. Apparatus and method for conditioning air-entangled yarn
WO2006102932A1 (de) * 2005-03-26 2006-10-05 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum führen und fördern von zumindest einem faden

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE541820A (de) * 1955-01-07
DE1232312B (de) * 1962-03-12 1967-01-12 Spinner Oy Fadenstreckrolle mit verschwenkbarer Fadenfuehrvorrichtung
GB1009752A (en) * 1962-06-15 1965-11-10 Scragg & Sons Improvements in textile machines
JPS5682761A (en) * 1979-12-12 1981-07-06 Toray Ind Inc Roll-up device for yarn

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE219635C (de) *
US483809A (en) * 1892-10-04 Rolls for doubling and twisting machines
US1803475A (en) * 1927-03-05 1931-05-05 Ig Farbenindustrie Ag Apparatus for making bands of artificial fibers
US2002994A (en) * 1932-03-05 1935-05-28 American Bemberg Corp Continue process and apparatus
US2294871A (en) * 1939-07-19 1942-09-01 American Bemberg Corp Method and apparatus for the continuous spinning of artificial silk
US2424400A (en) * 1946-07-27 1947-07-22 Crompton & Knowles Loom Works Warp beam lifting mechanism for looms
US2462043A (en) * 1946-04-23 1949-02-15 George C Moore Company Tension device for rubber covering machines

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT143153B (de) * 1933-02-24 1935-10-25 Ig Farbenindustrie Ag Verfahren und Vorrichtung zur Herstellung eines verzugsfähigen Bandes aus Kunstspinnfasern.
CH175981A (de) * 1933-06-14 1935-03-31 Glanzstoff Ag Vorrichtung zur Nassbehandlung und zur Trocknung von frisch gesponnenen Kunstseidenfäden im fortlaufenden Arbeitsgang.
DE715040C (de) * 1938-12-01 1941-12-12 Sueddeutsche Zellwolle Ag Dreiwalzenwerk

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE219635C (de) *
US483809A (en) * 1892-10-04 Rolls for doubling and twisting machines
US1803475A (en) * 1927-03-05 1931-05-05 Ig Farbenindustrie Ag Apparatus for making bands of artificial fibers
US2002994A (en) * 1932-03-05 1935-05-28 American Bemberg Corp Continue process and apparatus
US2294871A (en) * 1939-07-19 1942-09-01 American Bemberg Corp Method and apparatus for the continuous spinning of artificial silk
US2462043A (en) * 1946-04-23 1949-02-15 George C Moore Company Tension device for rubber covering machines
US2424400A (en) * 1946-07-27 1947-07-22 Crompton & Knowles Loom Works Warp beam lifting mechanism for looms

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2715308A (en) * 1950-01-11 1955-08-16 Universal Winding Co Method of and apparatus for twisting and winding
US2747251A (en) * 1950-07-12 1956-05-29 Du Pont Yarn apparatus
US2883259A (en) * 1952-01-25 1959-04-21 Severini Goffredo Processes and equipments for the continuous treating of yarns
US2764012A (en) * 1953-08-05 1956-09-25 American Viscose Corp Fluid processing system for running strand
US2892336A (en) * 1954-02-02 1959-06-30 Pensotti Ambrogio Apparatus for wet-treating threads, particularly viscose rayon threads
US2976671A (en) * 1958-10-30 1961-03-28 American Enka Corp Method of threading drawtwister
US2922296A (en) * 1959-04-29 1960-01-26 Kuljian Corp Thread processing apparatus
US3172187A (en) * 1962-03-14 1965-03-09 Spinner Oy Thread advancing device for thread machines
US3238593A (en) * 1963-04-03 1966-03-08 Zimmer Verfahrenstechnik Thread stretching device
US3844462A (en) * 1970-12-31 1974-10-29 Hughes Aircraft Co Dispensing head for strand material
EP0047348B1 (de) * 1980-09-04 1984-06-27 Badische Corporation Apparat zum Einziehen polymolekularen Fadenmaterials
EP0127334A2 (de) * 1983-05-02 1984-12-05 Toray Industries, Inc. Garnfördereinrichtung; Einführung der Aufwicklung von Garn
EP0127334A3 (en) * 1983-05-02 1985-04-17 Toray Industries, Inc. Yarn feeding device; winding initiation for yarn
US5320294A (en) * 1991-09-20 1994-06-14 H. Stoll Gmbh & Co. Yarn-delivery device
US20060053605A1 (en) * 2004-09-10 2006-03-16 Belmont Textile Machinery Co., Inc. Apparatus and method for conditioning air-entangled yarn
US20080110150A1 (en) * 2004-09-10 2008-05-15 Belmont Textile Machinery Co., Inc. Apparatus and method for conditioning air-entangled yarn
US7475459B2 (en) 2004-09-10 2009-01-13 Rhyne Jeffrey T Apparatus and method for conditioning air-entangled yarn
US7480969B2 (en) * 2004-09-10 2009-01-27 Rhyne Jeffrey T Apparatus and method for conditioning air-entangled yarn
WO2006102932A1 (de) * 2005-03-26 2006-10-05 Oerlikon Textile Gmbh & Co. Kg Vorrichtung zum führen und fördern von zumindest einem faden

Also Published As

Publication number Publication date
BE481678A (de)
GB656630A (en) 1951-08-29
FR964567A (de) 1950-08-18
NL71675C (de)
GB643516A (en) 1950-09-20
DE896842C (de) 1953-11-16
CH265165A (de) 1949-11-30

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