US3669377A - Coiling apparatus - Google Patents

Coiling apparatus Download PDF

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Publication number
US3669377A
US3669377A US96516A US3669377DA US3669377A US 3669377 A US3669377 A US 3669377A US 96516 A US96516 A US 96516A US 3669377D A US3669377D A US 3669377DA US 3669377 A US3669377 A US 3669377A
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United States
Prior art keywords
mandrel
platen
coil
laying
rings
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Expired - Lifetime
Application number
US96516A
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English (en)
Inventor
Martin Gilvar
Charles E Conlon
Alfred R Leger
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.)
Siemens Industry Inc
Original Assignee
Morgan Construction Co
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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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/76—Depositing materials in cans or receptacles
    • B65H54/80—Apparatus in which the depositing device or the receptacle is rotated
    • 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
    • B21C47/02—Winding-up or coiling
    • B21C47/10—Winding-up or coiling by means of a moving guide
    • B21C47/14—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum
    • B21C47/143—Winding-up or coiling by means of a moving guide by means of a rotating guide, e.g. laying the material around a stationary reel or drum the guide being a tube

Definitions

  • the present invention relates to a novel apparatus and method for forming an axially moving product length into a coil.
  • the invention is especially useful in coiling rolling mill products such as for example rod or bar, although it will be appreciated from the following detailed description that other uses are also contemplated.
  • the present method comprises the steps of: passing an axially moving product length through a rotating laying head which operates to form the product into rings encircling a mandrel, the initial rotational speed of the laying head relative to the axial speed of the product being such that a relatively short leading section of the product length loosely encircles the mandrel; holding the leading section of the product length against the mandrel and then increasing the speed of the laying head while axially reciprocating the mandrel to tightly wind subsequent rings around the mandrel in a dense orderly arrangement, the aforesaid holding action being maintained for a brief interval; continuing the winding action until a coil of the desired weight has been produced, the said coil usually containing the entire length of a given product length; and, thereafter, retracting the mandrel from the coil prior to discharging the completed coil from the apparatus.
  • FIG. I is a vertical sectional view taken through one embodiment of an apparatus embodying the concepts of the present invention, which apparatus is especially adapted to coil product, such as for example rod or bar, emerging from a rolling mill;
  • FIG. 2 is a sectional view taken along lines 2-2 of FIG. I;
  • FIG. 3 is a sectional view similar to FIG. I showing the reciprocating mandrel axially withdrawn from a completed coil
  • FIGS. 4A, 4B and 4C are diagrammatic, block and schematic illustrations of the electrical control system employed with the apparatus shown in FIGS. I to 3.
  • FIGS. 1-3 there is shown in FIGS. 1-3 a coil forming apparatus which includes a laying head assembly generally indicated at I overlying a mandrel 12.
  • the laying head assembly is of generally known construction comprising a vertically disposed rotatable cylindrical shaft 14 supported by bearings I6 carried on a support structure l8.
  • Shaft [4 may be driven in any known conventional manner, as for example by a plurality of belts extending between a pulley 22 on the shaft and another pulley 24 on a gear reducer 26. the latter being driven through shaft 28 by a variable speed drive motor (schematically shown in F IG. 4a at 76).
  • suitable guide means are employed to direct the product to be coiled into the upper end 300 of a laying pipe 30 which is carried by the shaft I4 for rotation therewith.
  • the laying pipe extends downwardly and axially through shaft 14 as at 306 before curving laterally and outwardly through an opening 32 in the shaft. Thereafter, the laying pipe takes on a curbed configuration as at 30c which extends around mandrel 12 with the exit end 30d of the laying pipe being located as shown in the drawings.
  • the lower curbed section 30c of the laying pipe is preferably supported by attachment to a cylindrical skin 34 which is in turn supported by and attached to the main shaft 14 by radially extending braces 36.
  • is provided between sections 30b and 30c in order to facilitate assembly of the laying pipe 30 into the shaft 14.
  • Mandrel 12 includes a generally cylindrical wall 38 having an exterior surface which tapers slightly inwardly from bottom to top. Circumferentially spaced wear strips 39 may if desired be arranged around the exterior surface of the mandrel.
  • the mandrel further includes a generally circular shelf 40a and an annular shelf 40b spaced vertically therebeneath. Both shelves 400 and 4015 are suitably apertured to accommodate positioning of stabilizing posts 42.
  • the posts are secured by any suitable means, as for example by kee er plates 44 to shell 40b, with the lower sections of the posts slidably extending through bearings 46 in an underlying support structure 48.
  • An operating cylinder 52 is mounted on a pedestal 54 beneath support structure 48.
  • the cylinder extends vertically through a suitable opening in support structure 48 and is provided with an extensible piston rod 56.
  • Piston rod 56 is connected at its upper end as at 58 to the underside of shelf 400.
  • a somewhat annularly shaped platen 62 surrounds the mandrel 12.
  • the platen 62 In the operative position shown in FIG. 1, the platen 62 is supported as at 64 on a radial flange 66 at the bottom of mandrel I2.
  • a pair of gripping arms 68a and 68b are mounted on platen 62 for pivotal movement about axes 70 between inoperative positions shown in solid in FIG. 2 and operative positions shown by broken lines at 680 and 68b in FIG. 2.
  • the gripping arms are manipulated between the aforesaid operative and inoperative positions by means of torque motors 72 mounted on the underside of platen 62.
  • the circular shelf 40a on mandrel I2 is spaced beneath the upper edge of wall 38, thus providing a recess 50 at the top of the mandrel.
  • a pair of cylinders 51a and 51b are located within recess 50 on shelf 40a.
  • the cylinders are each provided with piston rods 51c which are connected to lugs 53 depending from the undersides of a pair of plates 55a and 55b.
  • the plates 55a and 55b are each slidably mounted between guides 57 for movement under the influence of cylinders 51a and 51b between extended operative positions as shown in FIGS. I and 2 and retracted inoperative positions as shown in FIG. 3.
  • the apparatus shown in FIGS. 1 to 3 operates in the following manner: prior to commencing the coiling operating, the rotational speed of laying pipe 30 is adjusted in relation to the axial speed of the product to be coiled such that the resulting product rings will be slightly larger in diameter than the outside diameter of mandrel 12 at the level defined by the upper surface of annular platform 62. Stated somewhat differently, the initial rotational speed of the laying pipe will be such that the leading product end will be caused to loosely encircle the mandrel.
  • the mandrel I2 and the platform 62 will be in the uppermost position as shown in FIG. I, the gripping arms will be opened to their inoperative positions shown by the solid lines in FIG. 2, and the plates 55a and 55b will be operatively extended.
  • the leading end of the product length to be coiled will pass through the rotating laying pipe 30 and be formed into a circular pattern of one or more rings loosely encircling the mandrel 12.
  • the torque motors 72 will be actuated to pivot gripping arms 68a and 68b to their closed operative positions with the result that the initial loosely formed rings will be gripped and held against the exterior surface of the mandrel.
  • the rotational speed of the laying pipe 30 is then increased to produce a predetermined tension in the product being coiled.
  • cylinder 52 is operated to being lowering mandrel 12 along with the platen 62 supported thereon.
  • the rate at which cylinder 52 is operated is such as to cause the rings to be arranged side-by-side touching one another in densely packed layers. Operation of cylinder 52 will continue, first to lower and then to raise piston rod 58, with the result that the mandrel and platen 62 supported thereon will be vertically reciprocated between an uppermost position as shown in solid in FIG. I and a lower position shown by the dotted lines in FIG. 1. During the first upward stroke of the piston rod 56, the gripping members 68b will be opened to their inoperative positions.
  • FIGS. 4A, 4B and 4C illustrate in diagrammatic, block and schematic form an electrical control system for operating the apparatus shown in FIGS. 1-3.
  • the speed of the variable speed laying head drive motor 76 is controlled by a combination power supply and speed regulator 78.
  • the initial synchronization of the drive motor speed with the rolling mill speed is achieved by providing a mill speed signal from a mill tachometer as a reference input signal to the speed regulator 78. This adjusts motor armature voltage to maintain constant torque over mill speed range.
  • Two feedback loops are provided for the power supply and speed regulator to control both laying head drive motor speed and tension on the product being coiled.
  • a speed feedback loop 80 provides a feedback signal from drive motor tachometer 82.
  • the current feedback loop 84 generates a signal representing the amount of current drawn by the laying head drive motor 76.
  • the current feed back loop 84 provides a control of the tension on the coiled product and can be preset to produce a predetermined tension. This is done by adjusting motor field excitation to maintain constant horsepower over coil build-up range.
  • FIG. 48 illustrates in diagrammatic form the control circuitry for the operating speed of the reciprocating mandrel l2.
  • Mandrel speed is controlled by varying the oil flow to the operating cylinder 52 through a servo-controlled variable valve 86.
  • the reference inputs to valve servo 88 are product speed, product diameter. and a cylinder speed feedback signal.
  • the product diameter input is present for the particular diameter of the product.
  • FIG. 4C The operating sequence of the apparatus from an electrical standpoint is shown in schematic form in FIG. 4C.
  • Overall control of the apparatus is provided by a master ON-OFF switch 90 which is wired in series with a product detector 92 and a variable drop out delay timer 9].
  • Timer 91 is used to provide an energization path for a master control relay 94 through timer contacts VDT-l.
  • the laying pipe 30 is rotating at a seed relative to the axial speed of the product to be coiled such that the resulting rings will loosely encircle mandrel 12.
  • the mandrel, and hence the platen carried thereon are in the fully raised position and the gripping arms 68a and 68b are in the then inoperative positions.
  • timer 91 When the leading end of the product is detected by product detector 92, the latter being appropriately located at some point along the path of product travel in advance of the laying head assembly l0, timer 91 is actuated and master control relay 94 is energized through the now closed variable delay timer contact VDT-l. The energization of another control relay 94 closes a normally open contact CR-l which in turn actuates timer 96. At the end of a predetermined timing cycle, timer 96 opens normally closed timer contact TR-l which interrupts the energization path for an open gripper solenoid 98. At the same time, normally open timer contacts TR-Z are closed thereby completing the energization path for a closed gripper arm solenoid 100.
  • the energization of master control relay 94 also closes the normally open contacts CR-Z which establishes an energizetion path for a solenoid I01.
  • Solenoid 101 is used to control the movement of cylinders 51. With the solenoid energized, the cylinders 51a and 5lb will move the plates 55a and 55b to their extended operative positions as shown in FIGS. I and 2. Conversely, when solenoid ml is de-energized, the cylinder will move the plates to their retracted inoperative positions as shown in FIG. 3.
  • a third set of normally open contacts (IR-3 is also closed by the energization of master control relay 94.
  • Contacts CR-J provide control for a gripper arms closed relay 102, a mandrel down relay 104, a mandrel up relay I06 and an open gripper arms relay I08.
  • gripper arms closed limit switch is momentarily closed completing the energization path for gripper arms closed relay I02.
  • a holding path for the gripper arms closed relay is established through its own contact ACR-l.
  • a set of normally open gripper arm-closed relay contacts ACR-Z are used to provide a speed up signal to the power supply and speed regulator 78.
  • the speed up signal causes the laying head drive motor 76 to speed up sufliciently to lay the rings slightly against the mandrel.
  • the tension of the rings is sensed by the current feedback loop 84.
  • the current drawn by the laying head drive motor 76 is a function of product tension, and hence the current feedback signal provides an indication of the tension.
  • motor speed is regulated to maintain the preset tension.
  • a normally opened set of gripper arms-closed relay contacts ACR-3 is used to complete the energization path through normally closed mandrel up contacts MUR-l to the mandrel down relay I04.
  • the mandrel down relay controls the energization path for a mandrel down solenoid 2 through a set of contacts MDR-l.
  • the mandrel down solenoid in turn controls the direction of oil flow to the mandrel cylinder 52 to start piston rod 56 in a downward direction.
  • a limit switch I" is closed completing the energization path for the mandrel up relay I06.
  • Energization of the mandrel up relay opens mandrel up relay contacts MUR-l, thereby interrupting the energization path for the mandrel down relay I04, while at the same time setting up a holding path through mandrel uprelay contacts MUR-Z.
  • the mandrel up relay also completes the energization path for a mandrel up solenoid 116 through mandrel up relay contacts MUR-J.
  • the mandrel up solenoid changes the direction of oil flow to the mandrel cylinder 52 causing the cylinder to start in an upward direction.
  • limit switch 118 is closed. Assuming that the mandrel is on its first upward stroke after starting the coiling operation, mandrel up relay contact MURA will be closed thereby completing the energization path for open arms relay 108.
  • the open arms relay sets up its own holding path through contacts OAR-1.
  • the energization of the open arm relay 108 interrupts the energization path for the closed arm solenoid 100 by opening relay contacts OAR-2.
  • normally open arms relay contacts OAR-3 are closed providing an energization path for the open arms solenoid 98.
  • This circuitry allows the gripper arms to open during the first upwardly stroke in the reciprocating cycle of the mandrel.
  • the open arms solenoid 98 will remain energized and therefore the arms will remain open as long as the product detector 92 detects product and provides the energization path for the master control relay 94.
  • limit switch 120 opens and interrupts the energization path to the mandrel up relay 106.
  • the mandrel down relay 104 is then energized and the down-up reciprocating cycle of the mandrel is repeated again with the exception that the arms remain open as noted above.
  • the up and down reciprocating cycle of the mandrel continues as long as product is sensed by the product detector 92.
  • power is interrupted to timer 91, after a preset time delay to allow completion of the coiling operating, timer contacts VDF/are opened thereby breaking the energization path for master control relay 94 and causing relay contacts CR-l, CR-Z and CR-3 to open.
  • CR-l open, the timer 96 is reset and timer contacts TR-l and TR-2 return to their normal conditions.
  • a holding path of stripping control relay 122 is provided through a set of contacts CRX-2.
  • the mandrel down solenoid 112 will be energized when the master control relay 94 is de-energized at the end of the rod sensing cycle.
  • limit switch 125 closes to start the stripping operation.
  • the normally closed switch 124 is mechanically opened, thereby interrupting the energization path for the stripping control relay 122.
  • the mandrel and the laying head may if desired be arranged horizontally rather than vertically as depicted in the drawings.
  • the number and general design of the gripping arms may also be changed to suit particular operating conditions. While the method and apparatus of the present invention are particularly useful in coiling the product of a rolling mill, it will be appreciated from the foregoing that other types of products and elongated elements may be coiled by the same apparatus and method.
  • Apparatus for coiling an axially moving elongated element comprising: a platen having an opening therein; a mandrel protruding through the opening in said platen, laying means rotatable around said mandrel for receiving and forming the axially moving element into a continuous series of rings encircling said mandrel, means for varying the rotational speed of said laying means relative to the axial speed of the element, the initial rotational speed of said laying means being such that the leading section of the element contacts said platen and loosely encircles said mandrel, gripping means movable between an inoperative position spaced radially from said mandrel and an operative position gripping the leading section of the element against said mandrel, whereupon following adjustment of the gripping means to the operative position, the rotational speed of the laying means is increased to develop tension in the element which results in the element thereafter being tightly wound around said mandrel, operating means for axially reciprocating said mandrel and said
  • said gripping means is comprised of arm members pivotally mounted on said platen for movement between said inoperative and opera tive positions.
  • control means responsive to the presence of the element leading end for controlling the operation of said gripping means.
  • Apparatus for coiling an axially moving element comprising: a horizontal platen having an opening therein, a mandrel protruding vertically through the opening in said platen, said mandrel including means for supporting said platen, rotating laying means overlying said platen for forming the axially moving element into a continuous series of rings encircling said mandrel, the initial rotational speed of said laying means relative to the axial speed of the moving element being such that the leading section of the element loosely encircles the mandrel and rests on said platen, gripping means carried by said platen for movement between an inoperative position radially spaced from said mandrel and an operative position gripping the leading section of the element against said mandrel, whereupon the rotational speed of the laying head is increased to develop tension in the element and to tightly wind subsequent rings around said mandrel, operating means for axially reciprocating said mandrel to axially distribute the rings being tightly wound thereon in radially arranged
  • Apparatus for coiling an axially moving product length comprising: a mandrel; rotatable laying means for forming the axially moving product length into a continuous series of rings encircling said mandrel, the initial rotational speed of said laying means relative to the axial speed of the moving product length being such that the leading section of the product length loosely encircles said mandrel; gripping means cooperating with said mandrel to temporarily grip the leading section of the product length therebetween, thereby allowing the rotational speed of the laying means to be increased with the result that tension is developed in the product length and the remainder of the product length is tightly wound around said mandrel; and, operating means for reciprocating said mandrel in an axial direction to distribute the rings being wound thereon in radially arranged layers, the said operating means being further operative upon completion of the coil forming operation to axially withdraw the mandrel from the coil.
  • a method of coiling an axially moving product length comprising the steps of; passing the product length through a laying head to form the product into a continuous series of rings, each of which encircles a mandrel protruding vertically through an opening in a horizontal platen, initially controlling the rotational speed of the laying head so that the leading section of the product length loosely encircles the mandrel and rests on the platen, temporarily holding the leading section of the product length against the mandrel while simultaneously increasing the speed of the laying head and axially reciprocating the mandrel, thereby developing tension in the product length with the result that subsequently formed rings are tightly wound around the mandrel in radially arranged layers, and, upon completion of the coiling operation, withdrawing the mandrel from said coil through the opening in said platen, thus freeing the coil for subsequent lateral removal from the platen.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Moulding By Coating Moulds (AREA)
US96516A 1970-12-09 1970-12-09 Coiling apparatus Expired - Lifetime US3669377A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9651670A 1970-12-09 1970-12-09

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US3669377A true US3669377A (en) 1972-06-13

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US96516A Expired - Lifetime US3669377A (en) 1970-12-09 1970-12-09 Coiling apparatus

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US (1) US3669377A (de)
JP (1) JPS5014990B1 (de)
DE (1) DE2158722A1 (de)
GB (1) GB1364101A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220026A (en) * 1977-12-01 1980-09-02 Tokyo Shibaura Denki Kabushiki Kaisha Position control method and apparatus for controlling the position of the wire discharging port of a laying head
US4258834A (en) * 1978-07-12 1981-03-31 Western Gear Corporation Winding system for flexible conduits and cables
US4944469A (en) * 1988-12-28 1990-07-31 Southwire Company High speed coiling apparatus
US5312065A (en) * 1992-02-05 1994-05-17 Morgan Construction Company Rod laying head with front and tail end ring control
US5897071A (en) * 1996-12-19 1999-04-27 Sms Schloemann-Siemag Ag Wire-coiling system
US6196486B1 (en) * 1998-06-19 2001-03-06 Sms Schloemann-Siemag Ag Counterweighted wire-coiling head
WO2004002643A1 (en) * 2002-07-01 2004-01-08 Danieli & C. Officine Meccaniche S.P.A. Laying pipe
US20070256752A1 (en) * 2003-06-30 2007-11-08 Andrea De Luca Laying pipe

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2463482B (en) * 2008-09-12 2012-05-02 Tanjung Citech Uk Ltd A heat exchange unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966563C (de) * 1954-02-10 1957-08-22 Schloemann Ag Drahthaspel
US3191638A (en) * 1962-04-03 1965-06-29 Shmoolevich Bendersky Isaak Machine for former winding of one-and multi-range coils and laying them into semi-closed stator grooves of electrical machines
US3263309A (en) * 1959-04-20 1966-08-02 Gen Motors Corp Method of winding a loop containing coil

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966563C (de) * 1954-02-10 1957-08-22 Schloemann Ag Drahthaspel
US3263309A (en) * 1959-04-20 1966-08-02 Gen Motors Corp Method of winding a loop containing coil
US3191638A (en) * 1962-04-03 1965-06-29 Shmoolevich Bendersky Isaak Machine for former winding of one-and multi-range coils and laying them into semi-closed stator grooves of electrical machines

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4220026A (en) * 1977-12-01 1980-09-02 Tokyo Shibaura Denki Kabushiki Kaisha Position control method and apparatus for controlling the position of the wire discharging port of a laying head
US4258834A (en) * 1978-07-12 1981-03-31 Western Gear Corporation Winding system for flexible conduits and cables
US4944469A (en) * 1988-12-28 1990-07-31 Southwire Company High speed coiling apparatus
US5312065A (en) * 1992-02-05 1994-05-17 Morgan Construction Company Rod laying head with front and tail end ring control
US5897071A (en) * 1996-12-19 1999-04-27 Sms Schloemann-Siemag Ag Wire-coiling system
US6196486B1 (en) * 1998-06-19 2001-03-06 Sms Schloemann-Siemag Ag Counterweighted wire-coiling head
WO2004002643A1 (en) * 2002-07-01 2004-01-08 Danieli & C. Officine Meccaniche S.P.A. Laying pipe
US20050247364A1 (en) * 2002-07-01 2005-11-10 Andrea De Lucca Laying pipe
CN100333848C (zh) * 2002-07-01 2007-08-29 丹尼利机械设备股份公司 卷盘管
US20070256752A1 (en) * 2003-06-30 2007-11-08 Andrea De Luca Laying pipe

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Publication number Publication date
GB1364101A (en) 1974-08-21
JPS5014990B1 (de) 1975-05-31
DE2158722A1 (de) 1972-08-24

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