US3498564A - Wire unspooling and braking apparatus - Google Patents

Wire unspooling and braking apparatus Download PDF

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Publication number
US3498564A
US3498564A US726364A US3498564DA US3498564A US 3498564 A US3498564 A US 3498564A US 726364 A US726364 A US 726364A US 3498564D A US3498564D A US 3498564DA US 3498564 A US3498564 A US 3498564A
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US
United States
Prior art keywords
wire
spool
collar
braking
unspooling
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
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US726364A
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English (en)
Inventor
Peter Dismon
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.)
Glanzstoff AG
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Glanzstoff AG
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Filing date
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
    • B65H59/02—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package
    • B65H59/06—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating delivery of material from supply package by devices acting on material leaving the package
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/16—Unwinding or uncoiling
    • B21C47/18—Unwinding or uncoiling from reels or drums
    • B21C47/20—Unwinding or uncoiling from reels or drums the unreeled material moving transversely to the tangent line of the drum, e.g. axially, radially
    • 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
    • B65H49/02—Methods or apparatus in which packages do not rotate
    • B65H49/04—Package-supporting devices
    • B65H49/06—Package-supporting devices for a single operative package
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D41/00—Looms not otherwise provided for, e.g. for weaving chenille yarn; Details peculiar to these looms

Definitions

  • This invention is concerned with an apparatus for the overhead unwinding or unspooling of the feed spool for a wire-drawing device, and more particularly, the invention is directed to novel means for braking or tensioning the wire as it is removed from the spool winding and directed over the free or run-01f end of the spool.
  • the apparatus of the invention results in an improved operation, including a greater velocity of unwinding or unspooling the Wire.
  • the initial material used for the production of metallic wires is normally in the form of a wire rod as obtained from a conventional wire rod manufacturing operation.
  • This initial wire rod which has a relatively large diameter, is brought down to the diameter required for the final product in a so-called wire-drawing machine or device.
  • it is drawn through the tapered bore of a wire-drawing die by means of a block or other suitable means to draw the wire.
  • a single die often contains a number of bores which taper in the direction of the wire draw, and the die and drawing block are generally mounted on a bench or other suitable support, the entire assembly being referred to as a wiredrawing frame.
  • the initial supply of wire is ordinarily withdrawn from a rotatable spool. After the drawing operation is completed, the finished fine wire is taken up again onto a spool or coil former.
  • the strength of the wire as determined by the size of its crosssection often is not sufficient to withstand the tensile load placed on the section of wire between the feed spool and the feed side of the wire-drawing device, particularly when starting up the wire-drawing frame due to the inertia or dead weight of the initially motionless mass of the coiled spool.
  • the load required to start the rotation of the feed spool can easily cause the wire to rupture.
  • the feed spool tends to continue running either because its mass is only slightly braked or because it is quite diflicult to provide a sufiicient braking Within a reasonable period of time.
  • an undesired length of wire unwinds from the spool and is not processed on the wire-drawing frame.
  • This excess work material tends to form a tangled convolution or coil of the wire which prevents an immediate renewal of the drawing operation, because this excess length of wire must be disentangled by hand and Wound back onto the feed spool or else removed as waste material.
  • flyers commonly used for unspooling thread in the textile industry. Spools equipped with such flyers make it possible to regulate a desired tension in the wire as it is unwound with the assistance of a braking device. It is then possible to substantially avoid the simultaneous removal or disengagement of several wire turns or coils, and one can be reasonably certain of achieving a run-ofi of the wire from the spool in an operation which is relatively free of disturbances.
  • a disturbance-free overhead unspooling of the wire can no longer be accomplished in an economical manner by the use of such flyers.
  • One object of the present invention is to overcome prior difiiculties in the rapid unspooling of a wire from a flanged feed spool, particularly where the wire is being supplied to a fine wire-drawing frame at relatively high speeds and large quantities.
  • Another object of the invention is to provide braking means in combination with apparatus for the overhead unwinding of a wire coiled on a feed spool, whereby one can achieve high feed velocities at a uniform or even rate so as to guarantee a disturbance-free operation.
  • Still another object of the invention is to provide ap paratus for the overhead unspooling and braking of wire from a feed spool which is relatively simple in its con-.
  • Yet another object of the invention is to provide an overhead unspooling and braking of the feed spool for a fine wire-drawing device which is durable in its operation and which avoids any substantial deformation or damage to the wire being treated.
  • This braking means essentially includes a rounded, smoothsurfaced circular guide element mounted concentrically on the free end of the spool and extending at least partly past the run-off flange into an annular region which lies radially outwardly of the spool portion on which the wire is coiled, the diameter of this circular guide element being sufficiently greater than the diameter of the runoff flange to permit the wire to be pulled off said spool outwardly around the guide element in running and sliding contact therewith and then inwardly over the free end of the spool, and collar means composed of an elastomeric, abrasion-resistant material coaxial with and supported externally of the spool and resting on the outer portion of the circular guide element for application of a braking pressure on the wire as it runs between the collar means and the circular guide element.
  • the feed spool is preferably attached securely at one end to a base frame while mounting the circular guide element adjacent the run-off flange at the opposite free end of the spool.
  • the circular guide element is preferably composed of an annular guide rail sup ported by a plurality of radial spokes or arms extending from a hub fastened axially at the free end of the feed spool.
  • the circular guide element can be tightly connected both with the spool body as well as with the base frame of the apparatus by means of a common bolt or screw which passes through the spool axis into the base frame.
  • the smooth, rounded surfaces of the circular guide element which are in running and sliding contact with the wire are preferably coated with a hard chromium plat ing.
  • the collar or sleeve which provides a braking pressure on the wire during its removal from the feed spool is preferably a molded article composed of a plasticized polyvinyl chloride.
  • the apparatus of the invention is particularly useful in combination with a wire-drawing device having means to pull the wire from the spool winding over the run-off flange to a feed guide point located approximately in the axis of the spool at a spaced distance from the free end thereof.
  • FIG. 1 is a partly schematic overall view of a suitable arrangement of the feed spool and braking means according to the invention with a wiredrawing frame;
  • FIG. 2 is a side elevational view, taken partly in crosssection through the axis of the feed spool and braking means;
  • FIG. 3 is an enlarged detail of the braking means taken from FIG. 2.
  • the coiled wire on the feed spool 1 is run off over the free end of the spool to a fixed guide point 2 and pulled through a conventional die in a wire-drawing frame 3.
  • the feed spool 1 and its braking elements including the collar 4 are connected to and supported by a suitable base frame 5.
  • the position of the spool is relatively unimportant since it is preferably mounted in a non-rotatable, fixed position on the base frame.
  • the spool may be positioned at an inclined angle as illustrated in FIG. 1 or it can be vertically positioned with reference to its longitudinal axis, preferably'with its free end at the top.
  • the term overhead unspooling or the like refers to a withdrawal of the wire over the free end of the spool as distinguished from a lateral or transverse unwinding of the wire tangentially from a rotating spool.
  • the wiredrawing frame 3 may contain one but more often a plurality of tapered bores in a wire-drawing die, so that there will be a series of feed spools for each wire-drawing frame. Also, several frames or dies may be arranged in sequence to gradually draw the wire into a fine diameter in two or more drawing steps or stages. Conventional drawing means are associated with such wire-drawing frames and are not illustrated in detail.
  • the wire unspooling and braking apparatus associated with the feed spool 1 is shown more fully in FIG. 2 in which various positions of the wire W during its run-off or unspooling are indicated by broken lines.
  • the feed spool 1 which consists of an elongated spool sleeve 6, an upper or run-off flange 7 and a lower or supporting flange 8 at the fixed end of the spool, the two flanges serving to retain the wire coil or spool winding 9 on the sleeve of the spool as a firmly wound wire package. Additional reinforcement of the flanges can be provided by means of suitable ribs or struts 7a and 80, respectively.
  • a circular guide element or annular guide rail 10 is located concentrically around the coiled wire 9 on the spool immediately adjacent the run-01f flange 7.
  • This circular guide element or guide rail 10 must be mounted on the free end of the spool 1 so as to extend at least partly past the run-off flange 7, preferably so that its inner diameter is somewhat greater than the outer diameter of the flange 7.
  • the means of supporting and mounting the guide rail 10 must be arranged so as to avoid interference with the running wire, and this is most conveniently accomplished by constructing the circular guide element in the form of a wheel with spokes, as illustrated.
  • the guide rail 10 is connected by means of a number of angled spokes or radial arms 11, which in turn are connected to a central hub member 12 mounted on the free end of the sleeve 6.
  • a central hub member 12 mounted on the free end of the sleeve 6.
  • the circular guide element or spoked wheel 10 is then firmly seated and secured onto the body of the spool 6 by means of a threaded bolt 13 which can be screwed into the base frame 5.
  • a suitable handle 14 or other means can be provided in order to screw the bolt in place. In this manner, the circular guide element is tightly connected both with the spool body as well as with the base or supporting frame for the feed spool.
  • the wire W As the wire W is withdrawn from the winding 9, it first runs outwardly around the outer circumferential portion of the guide rail 10 and then inwardly to a feed guide point from which it can be supplied to the fine wiredrawing frame as indicated in FIG. 1.
  • the outer diameter of the circular guide element 10 must be sufficiently large to extend radially of the coiled wire 9 at a distance which prevents contact of the wire with the run-off flange 7 during the overhead unspooling. In this manner, injury to the smooth Wire surfaces by contact of the wire with the unfinished or rough flange 7 is fully prevented.
  • the lower or free end 4a can be circular in shape and concentric with the spool 1 while the upper or supporting portion 4b of the collar preferably tapers radially inwardly in the same direction as the running wire, thereby providing additional contact surface and a correspondingly greater braking action.
  • the collar is conveniently supported by means of a steel reinforcing ring worked into its upper supported rim.
  • This reinforced rim 15 rests on a similar supporting ring 16 which is held in place by a plurality of angled legs 17 mounted in suitable sockets 18 on the base frame 5.
  • the weight of the collar 4 and its reinforcing ring 15 is suflicient to hold it in place, but it is also feasible to clamp the rim 15 to the supporting ring 16 or to fasten these members in any other suitable manner.
  • the supporting means is sufficient to prevent the collar from shifting or sliding off of the guide rail 10. The wire is thus subjected to a uniform braking action as it is pinched or nipped between the guide rail 10 and the collar 4.
  • the collar 4 should be constructed of an elastomeric material which is sufficiently resistant to abrasion in order to remain effective over reasonably long periods of operation.
  • the elasticity of the collar should preferably correspond approximately to that of a rubber employed in vehicular tires or similar natural or synthetic rubbers.
  • a collar composed of a synthetic elastomeric polymer which has a high abrasion resistance While retaining a reasonable degree of elasticity or flexibility.
  • the collar from a plasticized polyvinyl chloride molding composition, for example of the type forwhich data is given in the Kunststofftaschenbuch (Plastic Handbook), 16th Edition, 1965, p. 189, Sec. 4.1.4.6.
  • This material possesses the desired elasticity for the collar, does not age and exhibits no noticeable appearance of wear even after a months period of use.
  • the preferred plasticized polyvinyl chloride materials can be readily molded into the desired shape of the collar and provided with sufiicient body and weight as well as elasticity in order to yield the desired braking effect.
  • the completely wound spool 6 with its coiled wire package 9 is placed on the base frame 5, the circular guide element 10 is inserted on top of the spool sleeve 6 and fastened thereon by means of the bolt 13 screwed into the base frame 5.
  • the retaining ring or collar holder 16 can then be mounted around the spool 1 by insertion into the sockets 18 which are preferably permanently fastened to the base frame 5.
  • the collar 4 is then inserted over the spool 1 and around the circular guide element 10 where it is supported by its upper rim 15 resting on ring 16. An initial length of wire from the spool winding is pulled off between the guide rail 10 and the collar 15 and directed into the die of the wire-drawing frame.
  • the wire W runs off from the spool, it moves from the outer spool circumference or outer layer of the coil 9 to describe a constantly changing conically tapered path or generated surface which varies between the extreme positions W and W as shown in FIG. 2. Also, as the wire is pulled from the circular guide element or guide rail 10 to a fixed feed position for the wire-drawing frame, it describes a generally conical path or generated surface W' which remains relatively constant. From the positions or surfaces generated by the wire between the extreme lines W and W", it will be clearly recognized that the running wire never comes in contact with the run-off flange 7.
  • the running wire follows a path which forms a triangle between the run-off point of the spool winding 9, the braking point between the guide rail 10 and the collar 4, and the entry or feed point 2 into the wire-drawing frame as defined by the apex of the conical surface generated by the upwardly and inwardly nmning wire W (compare FIGS. 1 and 2).
  • the wire In moving through this triangular pattern, the wire itself moves simultaneously in two directions. The first direction of movement coincides with the axis of the wire itself.
  • the second direction of movement takes place transversely to the wire axis and tangentially around the outer circumference of the guide rail 10 or the inner circumference of the collar 4.
  • the braking of the wire between the guide rail and the collar should delay the second of these designated wire movements so strongly that the length of wire, which is located at any point of time between the run-off point on the outer layer of the coil 9 and the braking point, is tightly gripped or held in place. In this manner, the uppermost coil or layer of the winding also remains tightly wound or securely held onto the underlying layers of coil up to the moment of its actual removal from the spool.
  • the desired braking effect of the invention is essentially obtained during the circular movement of the wire around the guide rail by means of the circumferential frictional pressure applied by the collar.
  • the tension produced solely by the linear or axial direction of movement of the wire itself over the guide rail is not sufiicient to prevent a tangling or dislocation of the coiled wire on the spool, and such tangling or dislocation of several loops or coils immediately preceding the take-off point on the spool cannot be prevented if the collar is omitted.
  • a slightly conically tapered collar on the runoff side of the guide rail is especially useful in providing a satisfactory braking and tensioning of the wire, and slight modifications in the shape or design of this collar can be readily accomplished in order to achieve almost any desired braking effect.
  • Apparatus for the overhead unspooling of wire coiled on a flanged feed spool comprising: means for braking said wire during its run-off from the spool over the flange at the free end of the spool, said braking means including (a) a rounded, smooth-surfaced circular guide element mounted concentrically on the free end of the spool and extending at least partly past the run-off flange into an annular region which lies radially outwardly of the spool portion on which the wire is coiled, the diameter of said circular guide element being sufliciently greater than the diameter of said run-off flange to permit the wire to be pulled off said spool outwardly around said guide element in running and sliding contact therewith and then inwardly over the free end of the spool, and
  • collar means composed of an elastomeric, abrasionresistant plasticized polyvinyl chloride coaxial with and supported externally of the spool and resting on the outer portion of said circular guide element for application of a braking pressure on said wire as it runs between said collar means and said circular guide element.
  • Apparatus for the overhead unspooling of wire coiled on a flanged feed spool comprising: means for braking said wire during its run-01f from the spool over the flange at the free end of the spool, said braking means including (a) a rounded, smooth-surfaced circular guide element mounted concentrically on the free end of the spool and extending at least partly past the run-ofl flange into an annular region which lies radially outwardly of the spool portion on which the wire is coiled, the diameter of said circular guide element being sufficiently greater than the diameter of said run-01f flange to permit the wire to be pulled off said spool outwardly around said guide element in running and sliding contact therewith and then inwardly over the free end of the spool, and
  • collar means composed of an elastomeric, abrasion-resistant material coaxial with and supported externally of the spool and resting on the outer portion of said circular guide element for application of a braking pressure on said wire as it runs between said collar means and said circular guide element, said collar means having a substantially cylindrical portion tangential to and concentric with the outer diameter of said circular guide element and an inwardly tapering portion resting on the rounded surface of said circular guide element immediately adjacent its outer diameter.
  • Apparatus as claimed in claim 2 in combination with a wire-drawing device having means to pull said wire from said spool over the run-0E flange to a feed guide point located approximately in the axis of the spool at a spaced distance from the free end thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
US726364A 1967-05-09 1968-05-03 Wire unspooling and braking apparatus Expired - Lifetime US3498564A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG0050039 1967-05-09

Publications (1)

Publication Number Publication Date
US3498564A true US3498564A (en) 1970-03-03

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Application Number Title Priority Date Filing Date
US726364A Expired - Lifetime US3498564A (en) 1967-05-09 1968-05-03 Wire unspooling and braking apparatus

Country Status (12)

Country Link
US (1) US3498564A (de)
BE (1) BE714710A (de)
BG (1) BG15736A3 (de)
BR (1) BR6898947D0 (de)
CH (1) CH462756A (de)
DE (1) DE1602265A1 (de)
ES (1) ES353565A1 (de)
FR (1) FR1562641A (de)
GB (1) GB1182754A (de)
IL (1) IL29903A (de)
LU (1) LU56020A1 (de)
NL (1) NL6805532A (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926386A (en) * 1974-07-09 1975-12-16 Us Air Force Spool for wire deployment
US4184647A (en) * 1977-02-07 1980-01-22 Rourke Arthur G Electrical cable unwinder
US4186897A (en) * 1978-07-31 1980-02-05 Brown Maurice H Wire control mechanism
US5409043A (en) * 1991-09-20 1995-04-25 Zenoni; Pietro Annular thread braking band for weft feeder
CN105562462A (zh) * 2016-03-13 2016-05-11 苏州金钜松机电有限公司 一种细线伸线机供丝盘
WO2018102864A1 (en) * 2016-12-05 2018-06-14 Qmr (Ip) Pty Ltd A depth measurement apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1074155B (it) * 1976-03-04 1985-04-17 Brev Savio Srl Dispoisitivo per i l controllo della tensione di filo svolgentesi da un corpo di supporto di filo

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338539A (en) * 1941-12-09 1944-01-04 Western Electric Co Material unwinding device
US2425525A (en) * 1945-08-28 1947-08-12 Western Electric Co Strand tensioning apparatus
US3389875A (en) * 1966-06-17 1968-06-25 Bell Telephone Labor Inc Wire payout system for measuring a ship's ground speed

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2338539A (en) * 1941-12-09 1944-01-04 Western Electric Co Material unwinding device
US2425525A (en) * 1945-08-28 1947-08-12 Western Electric Co Strand tensioning apparatus
US3389875A (en) * 1966-06-17 1968-06-25 Bell Telephone Labor Inc Wire payout system for measuring a ship's ground speed

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926386A (en) * 1974-07-09 1975-12-16 Us Air Force Spool for wire deployment
US4184647A (en) * 1977-02-07 1980-01-22 Rourke Arthur G Electrical cable unwinder
US4186897A (en) * 1978-07-31 1980-02-05 Brown Maurice H Wire control mechanism
US5409043A (en) * 1991-09-20 1995-04-25 Zenoni; Pietro Annular thread braking band for weft feeder
CN105562462A (zh) * 2016-03-13 2016-05-11 苏州金钜松机电有限公司 一种细线伸线机供丝盘
WO2018102864A1 (en) * 2016-12-05 2018-06-14 Qmr (Ip) Pty Ltd A depth measurement apparatus
US20190316461A1 (en) * 2016-12-05 2019-10-17 Reflex Instruments Asia Pacific Pty Ltd A depth measurement apparatus

Also Published As

Publication number Publication date
NL6805532A (de) 1968-11-11
CH462756A (de) 1968-09-30
FR1562641A (de) 1969-04-04
BE714710A (de) 1968-09-30
GB1182754A (en) 1970-03-04
IL29903A0 (en) 1968-06-20
DE1602265A1 (de) 1970-05-06
ES353565A1 (es) 1969-10-01
IL29903A (en) 1971-11-29
BR6898947D0 (pt) 1973-01-11
BG15736A3 (bg) 1976-05-10
LU56020A1 (de) 1968-09-03

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