Including Non-coaxial Closed Dies Patents (Class 72/281)
  • Patent number: 10081911
    Abstract: A wire drawing apparatus (10) is used in a final drawing process to ensure adequate initial performance of adhesion between brass-plated steel wire and rubber without a drop in productivity. At least one of the die (14z) disposed in the most downstream position, the die (14y) disposed in the second most downstream position, and the die (14x) disposed in the third most downstream position is a drawing die having a friction coefficient ? of 0.12 to 0.41 with the brass-plated steel wire. The other dies (14) are drawing dies each having a friction coefficient ? of 0.1 or below. By using these drawing dies, brass-plated steel wire (13) is drawn, and a noncrystalline portion of high lattice defect density is formed on the surface of the crystalline portion of the brass-plating layer of the brass-plated steel wire (13).
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: September 25, 2018
    Assignee: Kabushiki Kaisha Bridgestone
    Inventor: Koji Matsuyama
  • Patent number: 9782860
    Abstract: A system and method are disclosed for polishing and lubricating an aluminum welding wire. The system and method draw stock aluminum wire from a spool, subject the stock wire to a plurality of drawing and thermal treatment steps to obtain a wire having a final diameter suitable for use in a continuous welding apparatus. Immediately after the final drawing step, the wire is subjected to a polishing and lubricating process in which a cord that is impregnated with a lubricant is passed over the surface of the wire. The cord serves to remove contaminants, such as metal fines, from the surface of the wire, and also to provide a layer of lubricant over the surface of the wire. The resulting wire has an improved appearance, will not clog the automatic welding apparatus, and the lubricant will not contribute adversely to weld porosity in use.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: October 10, 2017
    Assignee: Alcotec Wire Corporation
    Inventors: Lance T. Vernam, Timothy M. Cook
  • Patent number: 6851293
    Abstract: A device re-shapes formed wire after processes such as annealing where wire is wound on bobbins. The device includes a reservoir for containing lubricant having a first open end and a second open end. The first end of the reservoir is closed by a guide mechanism for guiding the wire into the reservoir. The second end of the reservoir is closed by a wire shaping for shaping the wire when the wire is pulled therethrough. The wire shaping mechanism reduces the cross-sectional area of the wire by no more than 24%.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: February 8, 2005
    Assignee: Alcan International Limited
    Inventors: Rosaire Begin, Alain Champoux
  • Publication number: 20020007657
    Abstract: A multi-draw wire drawing machine includes upper and lower wire drawing stations that are adapted to selectively operate together for multi-drawing operations, and independently of one another for single-draw operations.
    Type: Application
    Filed: March 31, 2001
    Publication date: January 24, 2002
    Inventor: Troy A. McCabe
  • Patent number: 5189897
    Abstract: A method and apparatus for drawing steel wire to produce high tensile strength, steel wire with increased torsional ductility. The wire is drawn through a plurality of standard dies (14) in a wire drawing machine (10). The cross section of the wire is reduced by a constant reduction of about 15% to about 18% at each of the standard dies (14) with the exception of the final two dies (18, 19). The wire is then reduced by about 10% to about 90% of the typical reduction at the next to last die (18) and the remainder of the reduction at the final die (19).
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: March 2, 1993
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Robert E. Lionetti, Patrick E. Joseph, Dong K. Kim, Farrel B. Helfer
  • Patent number: 4884430
    Abstract: A filament drawing device for drawing a plurality of strands simultaneously in a downstream direction through a plurality of groups of dies, there being one die for each strand. Each group of dies is held in a retaining mechanism including first and second portions which are adapted for movement toward and away from one another. When the retaining mechanism is in the open position, wherein the portions have been moved away from each other, any one of the plurality of dies may be removed without removing or displacing other dies in the same group. When the portions are moved toward each other, they overlie at least partially the dies in the group and thereby retain them in position.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: December 5, 1989
    Assignee: Sumitomo Wiring Systems, Ltd.
    Inventors: Kinzi Yoshida, Akira Yamamoto, Kazuo Iura
  • Patent number: 4805434
    Abstract: Method of straight-line drawing for reducing the cross section of round material, tubing, solid and hollow profiles in at least two drawing stages, which includes feeding material to be drawn with a leading end to a first drawing machine for a first drawing stage, feeding the material to be drawn with the leading end in a straight line downstream of the first drawing machine. Subsequently the material to be drawn is fed with the leading end to at least one second drawing machine having a linearly movable intermittently operable drawing carriage operating at a discontinuous speed at the beginning of the drawing while said first drawing machine is already operating continuously, being disposed downstream of the straight line for at least one second drawing stage.
    Type: Grant
    Filed: August 10, 1987
    Date of Patent: February 21, 1989
    Assignee: Schumag AG
    Inventors: Karl-Heinz Komp, Bruno Walczak
  • Patent number: 4750344
    Abstract: Single and multi-wire drawing apparatus and method are described. A first wire drawing section includes two pairs of cone drawing blocks and two tandem drawing blocks. A second wire drawing section includes a number of tandem drawing blocks, four in the described embodiment, and a final capstan drawing block. the final tandem drawing block of the first wire drawing section is arranged on the second wire drawing section. All of the drawing blocks of the first wire drawing section are driven by a single drive, while the tandem and the final capstan drawing blocks on the second wire drawing section are actuated by a second drive. The dies associated with each tandem drawing block of the second section are movable so that a number of different wire sizes can be produced by appropriately moving the dies and adjusting the speed of the first drive to provide a desired wire speed entering into the second wire drawing section.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: June 14, 1988
    Assignee: Ceeco Machinery Manufacturing Limited
    Inventor: Walter Thompson
  • Patent number: 4644769
    Abstract: A multi-stage steel wire drawing machine has, in each stage, two dies and a single drive motor for drawing the wire through the two dies. In a preferred arrangement the dies are mounted side-by-side and an idler wheel used to define part of the wire path between the dies in the stage and a coaxial driven wheel is used to draw the wire through both dies in the stage and to define part of the wire path leading to the next stage. Dry wire lubrication before die entry and water cooling after passage through the dies are disclosed.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: February 24, 1987
    Assignee: Marshall Richards Barcro Limited
    Inventors: John W. Pamplin, Brian R. Astbury
  • Patent number: 4255957
    Abstract: A machine comprises draw blocks grouped in units arranged coaxially and mounted on coaxially located shafts of multiturbine hydraulic transformers. The drive of the machine is an asynchronous electric motor combined with a multiturbine hydraulic transformer.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: March 17, 1981
    Inventors: Vadim A. Davydov, Vladimir I. Khromov, Aizik M. Kogos, Leonid I. Rymarenko, Igor M. Makeev, Nikolai V. Pasechnik
  • Patent number: 4094180
    Abstract: A multiple stage wire drawing machine having a final stage draw block and a plurality of multiple step draw capstan assemblies each having a plurality of coaxial draw capstans of increasing diameter rotatably mounted on a drive spindle, driven at a fixed angular rate relative to the final stage draw block, and independently driven by the spindle through friction disc slip couplings at substantially the same slip drive torque.
    Type: Grant
    Filed: May 18, 1977
    Date of Patent: June 13, 1978
    Assignee: Amtel, Inc.
    Inventor: Evan Griffiths
  • Patent number: 4080818
    Abstract: A machine for drawing a plurality of metal wires including alternate odd-numbered wires and even-numbered wires, in which a plurality of drawing drums are rotatable in two parallel rows, each individual drum having a plurality of tracks at least equal to the number of wires to be drawn, the wire moving along a path which changes direction by extending successively from a drum in one row to a drum in the other row. A group of dies is arranged between each successive pair of drums, one die in each group serving for the passage of one of the wires. Two final drums are provided, and two sets of dies are arranged at different levels between the penultimate drums and the two final drums. One set and one final drum serves for the odd-numbered wires and the other set and the other final drum for the even-numbered wires.
    Type: Grant
    Filed: November 12, 1976
    Date of Patent: March 28, 1978
    Assignee: Sodetal-Societe Pour le Developpement du fil Metallique
    Inventor: Michel Gre
  • Patent number: 3979940
    Abstract: In a machine for reducing the cross-section of a number of wires by drawing each of them through a respective series of dies of decreasing diameter, a corresponding series of individual capstans is used for drawing each wire through its series of dies, and each one of several drive shafts supports at spaced positions along its length the capstans of a respective drawing stage of each series. Each capstan is driven by the shaft on which it is mounted, and the drive mechanism for the shafts can be adjusted, by presetting or otherwise, to give different peripheral speed ratios to the capstans, to suit different die sets and/or to compensate for wear. The capstans are mounted between bearings supporting the shafts, and the drive mechanism is located outside the bearing at the relevant end of the shaft. Preferably mechanism coupling adjacent shafts alternates between the two ends of the machine.
    Type: Grant
    Filed: October 30, 1974
    Date of Patent: September 14, 1976
    Assignee: British Insulated Callender's Cables Limited
    Inventors: David Dutton, James Moss
  • Patent number: 3962898
    Abstract: Apparatus for manufacture of wire. The apparatus includes structure for drawing the wire through a conventional wire drawing device and including a pull roller at the output point thereof. The wire then travels through a zone wherein an electric current is caused to flow through said wire while same is in motion therethrough for heating and annealing same, after which the wire is cooled and then directed through a further die for further shaping and cold working of same. A pull roller is provided at the output end of the last-named die for pulling the wire therethrough. The wire is finally wound onto a spool. By heating the wire as noted, same can travel through the heating zone at the same speed as through the dies and hence the operation is continuous and does not require intermediate winding and unwinding. Suitable coupling structure is provided for effecting proper speed relationships between the peripheries of the first-mentioned and second-mentioned pull rollers.
    Type: Grant
    Filed: April 22, 1974
    Date of Patent: June 15, 1976
    Assignee: Berkenhoff & Drebes Gesellschaft mit beschrankter Haftung
    Inventor: Klaus Erich Tillmann
  • Patent number: 3950977
    Abstract: A single capstan drum is used to pull alternatingly e.g. tubing through dies and coiling it on the periphery of the drum. The tubing to be drawn is taken from different stores, and while the tubing from one store is drawn, the other die and tubing of another store is prepared and inserted into that die, so that upon change-over the drum has to be halted merely briefly to fasten the end of the prepared tubing to the drum's periphery. The drawn tubing which was coiled dropped off the drum as soon as its end had left the respective die.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: April 20, 1976
    Assignee: Kabel-und Metallwerke Gutehoffnungshutte Aktiengesellschaft
    Inventors: Otto Uhlmann, Norbert Stephan