US3583651A - Method and apparatus for feeding parallel wire strands - Google Patents

Method and apparatus for feeding parallel wire strands Download PDF

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Publication number
US3583651A
US3583651A US820081A US3583651DA US3583651A US 3583651 A US3583651 A US 3583651A US 820081 A US820081 A US 820081A US 3583651D A US3583651D A US 3583651DA US 3583651 A US3583651 A US 3583651A
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US
United States
Prior art keywords
spool
strands
feed
wire strands
braking
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Expired - Lifetime
Application number
US820081A
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English (en)
Inventor
Kurt-Jurgen Schulze
Heinrich Giesen
Wilhelm Haas
Kurt Heuer
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Glanzstoff AG
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Glanzstoff AG
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Publication date
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
    • B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
    • B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
    • B65H59/387—Regulating unwinding speed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D30/44—Stretching or treating the layers before application on the drum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H49/00—Unwinding or paying-out filamentary material; Supporting, storing or transporting packages from which filamentary material is to be withdrawn or paid-out
    • B65H49/18—Methods or apparatus in which packages rotate
    • B65H49/34—Arrangements for effecting positive rotation of packages
    • 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
    • B65H2701/38—Thread sheet, e.g. sheet of parallel yarns or wires
    • 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
    • B65H2701/39—Other types of filamentary materials or special applications
    • B65H2701/3916—Inserts between layers of wire, hose or yarn

Definitions

  • Shunleff ABSTRACT Method and apparatus for feeding or delivering a group of parallel wire strands under controlled tension wherein a feed spool on which the strands are spirally coiled in layers separated by an interwound metal band is indirectly driven by rewinding the metal band on a second takeup spool having variable-speed drive means, and the rate of feed of the wire strands being unwound from the feed spool is regulated by sensing the position of a freely hanging or slack portion of the strands between the feed spool and a braking device which subsequently provides a controlled tension on the strands for further processing.
  • the invention generally relates to a method and to an apparatus for feeding a plurality of wire strands initially wound on a bobbin, spool or so-called warp beam, said strands consisting of individual wires, twisted strands or wire cables which lie parallel and closely adjacent to one another, the individual coiled layers of parallel adjacent strands being separated from one another by a thin metal band which has been interwound with the strands on the feed spool.
  • the strands are fed to a device for their processing, especially conventional apparatus for making tire inlays.
  • inlays for vehicle tires or conveyor belts, it is conventional to employ a group of wires, wire strands or wire cables which are coated both above and below with a rubber layer.
  • Such inlays require about 300 to 500 or even more substantially parallel wires, wire strands or wire cables arranged next to one another at the spacing prescribed for the finished inlay product, and this large number of wires, strands or cables are fed to the processing device under a preferably controlled tension.
  • wire strands The wires, wire strands or wire cables, designated hereinafter as wire strands" have generally been wound individually on reels.
  • a runoff gate known from the textile industry which accommodated about 300 to 500 reels, then delivered the strands from each individual reel to the processing apparatus for making the inlays.
  • This runoff gate demands a considerable amount of space.
  • the insertion of the full spools or reels and the removal of the empty spools is complicated and quite time consuming.
  • the processing operation has to be interrupted and the residual strands still present on the remaining spools can no longer be used as a feed.
  • the group of strands As an inlay or tire cord in a layer of rubber, it is requisite that in each individual element or strand of the cord group there prevail the same tensile stress.
  • This tensile stress or tension on the strands must be maintained constant during the processing into an inlay structure by means of a suitable braking mechanism.
  • the level of the tensile stress or force depends on the type of product produced but generally falls in the range of from to 2 kilograms (force), and in some cases even higher.
  • the present invention is directed to the problem of designing a method and means for feeding the wire strand group to the processing machine in such a way that the cord group is introduced virtually without tension into the braking device positioned before the inlay processing apparatus.
  • the unwinding must take place in such a way that it can adapt itself to every variation or fluctuation as the strands pass to and through the inlay processing machine.
  • the method of the invention then essentially includes the steps of unwinding the plurality of wire strands to form a planar group by indirect drive over the simultaneously unwinding metal band, and then supplying the planar group of wire strands over a free space, in which the tension of the strands results essentially from their own weight, to a braking interval wherein a controlled tension can be imparted to the strands for further processing.
  • This method according to the invention assures, at drawoff speeds up to 25 m./min. and sometimes even more, a uniform, trouble-free parallel running of the wire strands, while the tensile stress in the individual elements or strands of the entire group is equal and constant throughout its subsequent processing.
  • liftoff line there is meant in this context the line running transversely on the cylindrical surface of the loaded feed spool parallel to the spool axis, i.e. the line at which the group of strands is lifted off from the surface of the winding on the feed spool. ln the remainder of this text, the term spool" is used in preference to such terms as reel or warp beam, all of which fall within the generic expression winding member".
  • the control of the metal band speed is accomplished in a preferred manner by continuously sensing the position of the are or loop formed by the hanging group of wire strands in the free space between the liftoff line and the braking stage or interval.
  • the length variations of the hanging are or loop are then utilized by means of conventional mechanical or electromechanical devices which convert the position of a sensing member into a variation of the band winding speed, thereby accommodating the speed of the indirect drive to the conditions prevailing in the subsequent processing stage.
  • the tensile stress or tension to be adjusted or maintained in the wire strands is generated by means of a braking stage or interval in which the strands can be braked in a conventional manner.
  • the turning rate or rotational velocity of the feed spool containing the wire strands must be increased in direct proportion to its decreasing radius. So that the rate of increase in this rotational velocity of the feed spool occurs continuously rather than in discrete jumps, the runoff of the wire strands is preferably damped by a braking force counteracting the unwinding pull of the metal band, i.e. by applying a braking pressure to the shaft or flanges of the spool itself.
  • a further object of the invention is to provide suitable apparatus in a combination which is especially adapted to carry out the method of feeding the parallel wire strands under controlled tension into any typical processing apparatus which requires a so-called warp of individual wires, strands or cords, e.g. in making tire cords or reinforcing inlays for conveyor belts or the like.
  • processing apparatus does not constitute a specific feature of the present invention, and it will be understood that it merely follows the usual braking means adapted to place a braking tension on the wire strands, such braking means essentially representing the initial step or stage of this processing apparatus.
  • the present invention is directly concerned with the combination of particular means for initially supplying the wire strands from a unitary feed spool to the braking means of the subsequent processing apparatus.
  • the apparatus of the present invention includes a pair of flanged spools supported rotatably about horizontal parallel axes, one of the spools serving as the feed spool as defined above with a continuous metal band coiled and interposed between individual coiled layers of substantially parallel and closely adjacent wire strands.
  • the other spool serves as a take up means for rewinding the metal band from the feed spool while providing an indirect drive of the feed spool over this metal band.
  • drive means with controllable speed e.g. a variable speed motor, are provided to positively rotate the takeup spool with the metal band being wound thereon operating to indirectly drive the feed spool.
  • the two spools when empty preferably have the same structure, i.e. the same dimensions in terms of flange radius and spindle or axle length between opposing end flanges, so that they can be interchangeably used as either feed spools or takeup spools.
  • Their axes of rotation preferably fall in the same horizontal plane so that each spool can be connected to a common baseplate through supporting trestles. More importantly, it is desirable to position the takeup spool as the first spool in the feed direction of the wire strands while the feed spool is positioned as the second spool in this same feed direction.
  • the metal band is then unwound in a direction opposite that of the strand feed, preferably from the lower portion of the feed spool while the strands are lifted off the top portion of the feed spool, eg at a lift off position of anywhere from about 5 to 100, preferably to 90, from a vertical plane through the axis of the feed spool in the direction of the spool rotation.
  • Braking means which can include conventional elements, are employed to provide a controlled tension on the plurality of wire strands as they are drawn into further processing steps, it being necessary however to arrange such braking means at a spaced distance from the second or feed spool in the feed direction so that the wire strands as a planar group will hang freely in this initial feed path between the feed spool and the braking means.
  • the strands are drawn through the braking means or so-called braking interval by any conventional drawing or transporting apparatus, e.g. nip rolls or the like, and by applying a frictional pressure on the strands in the braking interval, the tension of the strands can be accurately controlled even at relatively high drawing or transporting speeds.
  • the braking means preferably includes a conventional comb to receive and guide the strands as they are received from the feed spool, a flat magnetic plate which accurately positions and supports the strands adjacent the comb, and a plurality of rollers or similar friction bearing members which contact the running wire strands so as to exert a braking tension thereon.
  • a conventional comb to receive and guide the strands as they are received from the feed spool
  • a flat magnetic plate which accurately positions and supports the strands adjacent the comb
  • a plurality of rollers or similar friction bearing members which contact the running wire strands so as to exert a braking tension thereon.
  • the control of the feed spool turning rate is achieved in a highly satisfactory manner by a sensing member arranged in riding contact with the freely hanging feed path of the wire strands between the feed spool and the braking means.
  • This sensing member e.g. in the form of a light roller or dancer arm, is preferably positioned at or near the lowest point of the freely hanging feed path and is pivoted or otherwise mounted to move freely along with the changing vertical position of the hanging feed path. Means can then be provided which are responsive to the movement of this sensing member to vary the speed of the drive means.
  • FIG. I is a partially schematic side elevational view of the apparatus.
  • FIG. 2 is a top plan view of the same apparatus.
  • the apparatus essentially includes the fully wound feed spool l and the empty takeup spool 2, which winds up the metal band 3.
  • the entire planar group of wire strands 4 runs off from the feed spool 11, then forms a hanging loop, on which there rests the dancer roller arm 5, and then passes over a fixed arcuate guide strip 6 into the comb 7 of the braking stage.
  • the wire strands 4 run with equal and uniform spacing from the comb 7 over the flat magnetic plate 8, which is secured onto the frame 9.
  • the roller 13 further carries on its shaft 15 a brakedrum 16, about which there is applied a band I7 provided with a brake lining.
  • This band is connected to a lever arm 18 which carries a slidable weight 19 so as to adjust the braking effect on this roller.
  • the brakeheads 20 rest on rollers ll, 12 so that the braking pressure on the wire strands can be adjusted by means of the weights 2] slidable on the lever arms 10.
  • Feed spool 1 and the initially empty takeup spool 2 have identical spool bodies 22, i.e. an identical spindle and flange construction, with oppositely disposed flanges 22 which are rigidly connected with the axle 23.
  • the axle of each spool is carried in the bearings 25 securely attached to the supporting trestle 24.
  • the supporting trestles 24 include skids 28, which can slide into the mounting guides 30 attached to the baseplate 29 up to the adjustable stop 31 (Fig. 2).
  • the spool flanges 22, the spindle, or axle 23, the bearings 25, the skids 28 and the supporting trestle 24 form a single unit which can be wound, transported and unwound in this unitary form, i.e. without removing the individual spools.
  • the drum or belt pulley 27 of the unit containing the takeup spool 2 is connected for rotation by the drive belt 32 with the driving wheel or pulley 33 on the drive shaft of the variable speed motor 34 having conventional speed control means 34a.
  • FIG. I further indicates the swinging range of the dancer roller arm 5, a lower position of the wire strand feed path 4a near the end of the feed supply being shown in broken lines.
  • the spools rotatably mounted in the supporting trestles stand opposite one another in such a way that the axial displacement between two spools is smaller than the difference between the metal band width and the clear space of the flanges of the spools.
  • the two spools should have parallel spindles or axes and the distance between these axes should be sufficiently close to permit the flanges on the spools to act as guides for the metal band as it passes from one spool to the other. In most cases, this distance between the axes will be less than two flange diameters.
  • the braking stage for generating a drawing tension on the strands preferably contains a comb 7 which sets the same spacing between the individual strands of the group of strands, e.g. as required for a tire cord.
  • the braking stage also includes a flat magnetic plate 8 and a roller trio ill, l2, 13 in which system one or more of these rollers are equipped with brake drums, preferably the large roller 13 having brakedrum l6 partially encircled by a frictionally engaged band 17 connected to lever arm 18 carrying a slidable weight 19.
  • each spool is rigidly connected with the axle or spindle turnably carried in the supporting trestle, in such a manner that the spool, axle, trestle and the associated brakedrum or belt pulley form a single movable or replaceable unit.
  • the supporting trestle 24 is provided with skids 28 which are slidable in guide rails 30 on the baseplate 29 up to an adjustable stop. It is thereby possible to easily and rapidly attach and release the entire spool and trestle unit on the baseplate.
  • the skids can be constructed in such a way that the spool and trestle units may be conveyed with fork lifts.
  • the force needed for damping the rotary movement of the feed spool containing the layers of strands interwound with the metal band is preferably generated with the swingable brake jaw 35 pivoted on the supporting trestle although other suitable braking means can also be employed.
  • the brake jaw is thus connected with the spool and trestle unit fastened to the baseplate and is applied against the cylindrical surface of the drum or belt pulley 27.
  • the takeup spool can include this same brake jaw which is merely swung out of operation so that the drum or pulley 27 can be engaged by the belt 32.
  • the drive with controllable speed is preferably arranged between the supporting trestles of the two spools.
  • the motor or drive means having a controllable speed is thus easily connected by means of a drive belt with the drum or the belt pulley of the takeup spool.
  • the wire strands 4 are continuously fed in their sagging path while in contact with the dancer arm 5 which acts as a sensing member to monitor this loop or arcuate path through the entire operation.
  • the dancer arm 5 drops downwardly with the downward movement of the feed path, and this mechanical movement is relayed to the drive means 34 through a conventional speed control unit 34a so as to gradually increase the speed of rotation of the feed spool as it is indirectly driven over the metal band.
  • This variable speed control also serves to avoid any large fluctuations in the position of the wire strands 4 as they pass through the free space between the feed spool 1 and the guide strip 6 at the beginning of the braking interval. in this manner, the initial supply of strands as they leave the feed roll are kept substantially free of tension so that they do not interfere with the uniform braking tension which must be subsequently applied. Likewise, disturbances in subsequent processing steps do not affect the uniform rate of feed from the feed spool.
  • the empty feed spool on the baseplate is simply exchanged with the takeup spool which then contains the metal band.
  • This spool wound with the metal band is used in a separate winding device for the production of a new feed spool.
  • a pair of flanged spools supported rotatably about horizontal parallel axes, the first of said spools viewed in the feed direction of the wire strands being arranged to take up the metal band fromthe second of said spools which acts as the feed spool;
  • drive means with controllable speed to positively rotate said first spool with the metal band being wound thereon operating to indirectly drive said second spool;
  • braking means to apply a tension on said plurality of wire strands as they are drawn into further processing, said braking means being arranged at a spaced distance from said second spool in the feed direction such that the wire strands hang freely in a feed path between said second spool and said braking means;
  • Apparatus as claimed in claim 4 wherein the axial displacement between the two spools is smaller than the difference between the width of the metal band and the clear width of the spool flanges.
  • said braking means for the wire strands includes a comb to receive and guide the strands from said feed spool, a flat magnetic plate supporting the strands adjacent said comb, and a plurality of rollers adapted to exert a braking tension on said strands.
  • each spool is rigidly connected to its axle which carries a brakedrum projecting axially outwardly from the flange at one end of the spool, said axle being turnably supported in a trestle-support ing means, and a frictional braking member mounted on said trestle-supporting means to frictionally engage said brakedrum on its cylindrical surface with means to vary the resulting frictional load.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Moulding By Coating Moulds (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Ropes Or Cables (AREA)
US820081A 1968-05-10 1969-04-29 Method and apparatus for feeding parallel wire strands Expired - Lifetime US3583651A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681778547 DE1778547B2 (de) 1968-05-10 1968-05-10 Vorrichtung zur zufuehrung einer schar aus einzeldraehten, drahtlitzen oder drahtseilen zu einer bearbeitungsvorrichtung

Publications (1)

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US3583651A true US3583651A (en) 1971-06-08

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US820081A Expired - Lifetime US3583651A (en) 1968-05-10 1969-04-29 Method and apparatus for feeding parallel wire strands

Country Status (15)

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US (1) US3583651A (de)
AT (1) AT298271B (de)
BE (1) BE732580A (de)
BG (1) BG16732A3 (de)
CH (1) CH489421A (de)
DE (1) DE1778547B2 (de)
ES (2) ES366906A1 (de)
FR (1) FR2011827A1 (de)
GB (1) GB1258627A (de)
IE (1) IE32847B1 (de)
IL (1) IL32048A (de)
LU (1) LU58610A1 (de)
NL (1) NL6906871A (de)
SE (1) SE337677B (de)
TR (1) TR16626A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3677484A (en) * 1969-12-09 1972-07-18 Polymer Processing Res Inst Method for winding up a thin layer material having a broad width
US3919762A (en) * 1972-08-05 1975-11-18 Wolfgang Borelly Process for the manufacture of parallel wire strands for bridges and the like by winding and unwinding
US5031847A (en) * 1989-04-08 1991-07-16 Amp Incorporated Wire-supplying device for manufacturing wire harnesses invention
WO2000035667A1 (en) * 1998-12-16 2000-06-22 Bartell Machinery Systems, Llc Festoonless tire bead winding system
US20060032272A1 (en) * 2004-08-10 2006-02-16 Besten, Inc. Spacer backing winder for use with a supplied work product
US20110108786A1 (en) * 2007-08-24 2011-05-12 Heerema Marine Contractors Nederland B.V. Axial displacement device, line deployment system, and a method for deploying a line

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57144633A (en) * 1981-03-05 1982-09-07 Inoue Japax Res Inc Wire electrode feeder
CN110027938B8 (zh) * 2018-12-30 2024-03-22 江苏俊知光电通信有限公司 一种室外光缆用便携式可调张力放线架装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1985524A (en) * 1930-12-16 1934-12-25 United Shoe Machinery Corp System for delivering sheet material
US2045534A (en) * 1934-04-12 1936-06-23 Firestone Tire & Rubber Co Tire building apparatus
US2276297A (en) * 1938-12-31 1942-03-17 Dennison Mfg Co Label dispenser
US2336754A (en) * 1941-02-06 1943-12-14 American Hard Rubber Co Apparatus for preparing permeable hard rubber strips for vulcanization
US2650037A (en) * 1950-05-05 1953-08-25 David N Judelson Machine for winding a web of material
US3178123A (en) * 1960-03-31 1965-04-13 A Varren Dr Ing Method and apparatus for pulling yarn from a yarn pack
US3412848A (en) * 1965-10-14 1968-11-26 Bekaert Pvba Leon Reel carrying elongated wire elements

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1985524A (en) * 1930-12-16 1934-12-25 United Shoe Machinery Corp System for delivering sheet material
US2045534A (en) * 1934-04-12 1936-06-23 Firestone Tire & Rubber Co Tire building apparatus
US2276297A (en) * 1938-12-31 1942-03-17 Dennison Mfg Co Label dispenser
US2336754A (en) * 1941-02-06 1943-12-14 American Hard Rubber Co Apparatus for preparing permeable hard rubber strips for vulcanization
US2650037A (en) * 1950-05-05 1953-08-25 David N Judelson Machine for winding a web of material
US3178123A (en) * 1960-03-31 1965-04-13 A Varren Dr Ing Method and apparatus for pulling yarn from a yarn pack
US3412848A (en) * 1965-10-14 1968-11-26 Bekaert Pvba Leon Reel carrying elongated wire elements

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3677484A (en) * 1969-12-09 1972-07-18 Polymer Processing Res Inst Method for winding up a thin layer material having a broad width
US3919762A (en) * 1972-08-05 1975-11-18 Wolfgang Borelly Process for the manufacture of parallel wire strands for bridges and the like by winding and unwinding
US5031847A (en) * 1989-04-08 1991-07-16 Amp Incorporated Wire-supplying device for manufacturing wire harnesses invention
WO2000035667A1 (en) * 1998-12-16 2000-06-22 Bartell Machinery Systems, Llc Festoonless tire bead winding system
US20060032272A1 (en) * 2004-08-10 2006-02-16 Besten, Inc. Spacer backing winder for use with a supplied work product
US20110108786A1 (en) * 2007-08-24 2011-05-12 Heerema Marine Contractors Nederland B.V. Axial displacement device, line deployment system, and a method for deploying a line
US8702067B2 (en) * 2007-08-24 2014-04-22 Heerema Marine Contractors Nederland Se Axial displacement device, line deployment system, and a method for deploying a line

Also Published As

Publication number Publication date
CH489421A (de) 1970-04-30
LU58610A1 (de) 1969-08-22
ES387599A1 (es) 1973-05-16
BG16732A3 (de) 1973-02-15
TR16626A (tr) 1973-01-01
DE1778547A1 (de) 1971-08-05
AT298271B (de) 1972-04-25
DE1778547B2 (de) 1976-12-02
NL6906871A (de) 1969-11-12
IE32847L (en) 1969-11-10
ES366906A1 (es) 1971-06-16
BE732580A (de) 1969-10-16
IL32048A (en) 1972-07-26
IL32048A0 (en) 1969-06-25
SE337677B (de) 1971-08-16
FR2011827A1 (de) 1970-03-13
GB1258627A (de) 1971-12-30
IE32847B1 (en) 1973-12-28

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