US2287589A - Wire coating die - Google Patents

Wire coating die Download PDF

Info

Publication number
US2287589A
US2287589A US345992A US34599240A US2287589A US 2287589 A US2287589 A US 2287589A US 345992 A US345992 A US 345992A US 34599240 A US34599240 A US 34599240A US 2287589 A US2287589 A US 2287589A
Authority
US
United States
Prior art keywords
die
wire
laminations
section
sections
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US345992A
Other languages
English (en)
Inventor
Irving H Wilson
Alexander G Beaver
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.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BE472001D priority Critical patent/BE472001A/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US345992A priority patent/US2287589A/en
Priority to DEA8039D priority patent/DE910175C/de
Application granted granted Critical
Publication of US2287589A publication Critical patent/US2287589A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/065—Insulating conductors with lacquers or enamels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
    • B05C3/12—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/18—Wire and cord die

Definitions

  • This invention relates to apparatus for coat ing elongated articles. such as wire and the like, of rectangular cross-section with liquid coating compositions, for example, enamels, varnishes, lacquers, etc.
  • the invention is especially concerned with the novel applicator or die hereinafter, for brevity, referred to as a die, by the use of which wires or other elongated articles of rectangular or square cross-section, hereinafter referred to as of rectangular or substantially rectangular cross-section, may be efiectively and economically coated with liquid coating compositions including a viscous solution of a resinous composition obtained by condensing an aldehyde, such as formaldehyde, with the hydrolysis prod not of a polyvinyl ester such .as polyvinyl acetate.
  • FIG. 1 is a view showing somewhat schematically coating apparatus embodying the invention
  • Fig. 2 is a top view of one form of die embodying the invention
  • Fig. 1 is a view showing somewhat schematically coating apparatus embodying the invention
  • Fig. 2 is a top view of one form of die embodying the invention
  • Fig. 1 is a view showing somewhat schematically coating apparatus embodying the invention
  • Fig. 2 is a top view of one form of die embodying the invention
  • FIG. 3 is a perspective view of portions of the die shown in Fig. 2 before assembly;
  • Fig. 4 is a, top view of a modified form of die embodying the,invention;
  • Fig. 5 is a perspective view of some of the elements of the die shown in Fig. 4; and
  • ' 6 is a perspective view of another embodiment of cross-section through an ordinary pair of rolls or through turks-head rolls, the resultant prod not is not always of uniform or constant crosswire, it is thus usually necessary to .use a series of dies, each die having an opening correspondingly larger than that of the previous die by the total thickness of the baked coating applied to employed in coating wires of different sizes as well as the same wire having different thicknesses of baked enamel thereon.
  • the die is easily assembled about the wire and removed therefrom and, in addition to being self-conforming, that is, adapted to follow variations in the cross-sectional size or shape. of the rectangular wire; it is also self-centering on the wire thus permitting the application of a layer of coating material of equal and uniform thickness on all four sides of the rectangular or square wire.
  • Fig. 1 The manner in which our invention may be applied toj conventional wire coating apparatus is schematically illustrated in Fig. 1.
  • wire I is drawn from a pay-off reel removing excess coating material from the freshly coated wire, specific embodiments thereof section.
  • the insulation of such wire by means of ordinary rigid dies is usually impractical as any die large enough to pass the larger or thicker portions of the wire will apply too thick a' layer of enamel or varnish to those portions of the wire of smaller or thinner cross-section.
  • the wire with a uniform layer of coating composition of the desired thickness thereon is passed upwardly from the die through a drying or baking oven 1 provided with electric heating units 8 supported within the insulated oven walls 9.
  • a drying or baking oven 1 provided with electric heating units 8 supported within the insulated oven walls 9.
  • any suitable design of baking oven may be employed, and that such oven may be. heated with gaseous combustion products, or by any other suitable means instead of the electric heating elements shown.
  • the baked wire with its heat-hardened insulating coating thereon is passed over a driving sheave l0 and is either recirculated through the coating material,
  • the numeral 6 designates generally a ing material or is passed over pulley H to a takeup reel (not shown).
  • the die of this invention comprises two substantially L-shaped or right-angle members with mean at the extremities of these members for slidably interlocking themto form a rectangular die opening therebetween. As the two members are movable with respect to one another, the die readily adapts itself to the surface contour of the wire passing therethrough.
  • the structure of such a die is best understood by reference to Figs. 2 and 3 of the drawing.
  • the die shown therein comprises two right-angle or L-shaped sections or members l2 and I3 adapted to interleave at their extremities to form the rectangular die opening ll.
  • Each of the sections l2 and I3 may suitably comprise a plurality of thin, vertically stacked, right-angle or 'L-sh'aped laminations l5 and It spaced from one another by a number of relatively short-armed or rectangular spacers l1 and. i3 -as thick as or slightly thicker than the laminations ,ol the other L-shaped section. Rivets l9 and passing. vertically through the stacked laminations and spacersof each section integrally unite each set or section of stacked laminations andspacers" into a rigid structure.
  • a second embodiment of the invention is shown in Figs. 4 and 5.
  • the two die sections 26 and'2l are made up of sets of laminations 23 and 23 thicker and fewer in number than the corresponding laminations of the die shown in Figs. 2 and 3 and a number of raised projections 33 and 3
  • may extend over the whole inner edge of each L-shaped lamination-including the portions ordinarily interleaved with the corresponding laminations of the other die section so that an exact centering of comparatively wide 01: thick rectangular wire is assured. If deshed, the projections on some of the laminations,
  • the spacers alternatively interposed between the laminations serve to space the ends or extremities of the various laminations comprising each section to permit the interlocking or interleaving of the laminations of one section with those of ,the other section to form an assembled die structure having a rectangular opening capable of accommodating wire I as shown in Fig. 2.
  • Self-centering means provided on the inner surface of the die opening, serve to center the wire within the die opening.
  • a plurality of runners such as fine steel wires 2
  • the spring 23 or some other suitable device capable of producing the same result thus holds runners 2
  • a layer of coating material of uniform thickness is applied to the wire over its entire length.
  • the thickness of the layer is controlled by the diameter of the wire used in forming runners 2
  • the die is adiustable to take any size wire above a certain minimum size corresponding to the size of the die opening when the interleaved laminations of one section bear against the edges of the spacers of the other die section.
  • the minimum size wire accommodated by any specific die will depend upon the length of the spacer arms which may in certain cases be zero, 1. e., the spacers may be rectangular in shape. With wire of larger cross-section,- the die expands against the pressure of the spring ring 23 and this ex-' such as the center lamination, of, each section may be staggered with respect to those of the remaining laminations.
  • are spaced by suitable spacers 32 and 33.
  • Each of the die sections '26 and 21 are provided with two rodshaped projections 34 and 35 extending outwardly from the center of the two arms of the L- shaped sections. The ends of these projections are grooved to receive asecuring spring ring 31 Y corresponding to spring 23 in Fig, 2.
  • spring ring 31 Y corresponding to spring 23 in Fig, 2.
  • the outside edges of the sections are beveled to prevent contact of spring to rods 3
  • the-two interlocking die sections. 40 and ll of stacked laminations l2 and 43. and spacers M and 45 are so constructed that with no wire inserted in the die opening, the annular spring 46 lying in the grooved edges of the die sections will pull the interleaved sections together and completely close the die opening.
  • This complete closing of the die opening is possible in this modification of the invention due to the proper selection of the size and shape of the respective interleaving laminations and spacers.
  • each of the laminations of one section and each of the opposing spacers of the other section are complementary portions of a circular disk so that when completely closed, the assembled die is of circular shape.
  • the stacked laminations of each section are suitably held firmly together by means of rivets 41 and 48.
  • Wire or die spacing means 43 comprising minute projections are provided on those edges of the laminations adapted to the die opening.
  • variable die openings of any. minimum or maximum size or shape may be obtained.
  • a die of the specific structure shown in Fig. 6 can be used in coating rectangular wires of relatively great width as compared with the thickness thereof.
  • the die sections are of sufficient height to prevent tilting of the die with respect. to the wire.
  • Adie for use in coating wires of substantially rectangular cross-section with liquid coating material, said die comprising two L-shaped sections, at leastpart of the extending portions of each of said L-shaped sections comprising a plurality of spaced parallel flat fingers inter-' .leaved with the opposite spaced parallel fingers of the other of the two L-shaped sections, the two 'L-shaped sections cooperating to form a substantially rectangular die opening and being free to move with respect to one another to vary the size of said die opening, means on the interior surfaces of said L-shaped section for cenular wire, said assembly comprising two stacks of spaced, L-shaped laminations, the extending portions of the L-shaped laminations of one stack being interleaved with the extending portions of the L-shaped laminations of the second stack e"ch of said stacks of L-shaped laminations being freely movable with respect to the other stack, and means comprising a spring for holding said stacks in operating position about said wire.
  • An expansible die for use in coating substantially rectangular wire comprising a plurality of stacked L-shaped laminations, alternate L- shaped laminations facing oppositely to the remaining L-shapedlaminations and being slidably interleaved therewith at their extending end portions, each of the sets of said alternate laminations having spacers therebetween at the rightangle portions of the Us adapted to provide spaces between the end portions of the lamina,- tions of one set for the interleaving of the end portions of the laminations of the second set, means for integrally uniting the laminations and spacers of each of said sets into a rigid structure, means for holding said sets in resilient interleaving engagement'with each other and with the wire to be coated, and means for-maintaining a predetermined space relation between each of said sets and said wire.
  • a die for use in coating wires with liquid coating material comprising two angle sections, at least part of the extending portion of each of said angle sections comprising a plurality of spaced parallel fingers interleaving with the opposite spaced parallel fingers of the other of the two angle sections, the two angle sections cooperating to form a die opening and being free to move with respect to one another to vary the size of said die opening, and means for holding said angle sections in operative position b to form a substantially rectangular die opening,
  • a die for use in coating wires with liquid coating material comprising, in combination, a plurality of members, each member having diverging arms, the arms of-each member comprising a plurality of spaced parallel fingers interleaving with the spaced parallel fingers of another arm, the members cooperating to form a die opening and being free to move with respect to one another to vary the size of said die opening in accordance with variations in the size of

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
US345992A 1940-07-17 1940-07-17 Wire coating die Expired - Lifetime US2287589A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE472001D BE472001A (enrdf_load_stackoverflow) 1940-07-17
US345992A US2287589A (en) 1940-07-17 1940-07-17 Wire coating die
DEA8039D DE910175C (de) 1940-07-17 1941-07-16 Abstreifvorrichtung zur Herstellung gleichmaessiger Isolierueberzuege aus fluessigen Massen auf elektrisch leitenden Draehten rechteckigen Querschnittes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US345992A US2287589A (en) 1940-07-17 1940-07-17 Wire coating die

Publications (1)

Publication Number Publication Date
US2287589A true US2287589A (en) 1942-06-23

Family

ID=23357462

Family Applications (1)

Application Number Title Priority Date Filing Date
US345992A Expired - Lifetime US2287589A (en) 1940-07-17 1940-07-17 Wire coating die

Country Status (3)

Country Link
US (1) US2287589A (enrdf_load_stackoverflow)
BE (1) BE472001A (enrdf_load_stackoverflow)
DE (1) DE910175C (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433673A (en) * 1944-08-23 1947-12-30 Gen Electric Die for coating wire
US2575911A (en) * 1948-02-27 1951-11-20 Gen Electric Wire enameling die
US2812007A (en) * 1954-07-16 1957-11-05 Painter Corp E Z Apparatus for and method of continuously producing paint roller cover sections
US2875725A (en) * 1956-06-26 1959-03-03 Gen Electric Wire coating device
US2880698A (en) * 1956-03-08 1959-04-07 Belden Mfg Co Apparatus for applying axially extending stripes to the surface of an insulated wireor cord
US2965068A (en) * 1957-10-09 1960-12-20 Painter Corp E Z Apparatus for applying liquid adhesive to an advancing cylinder
US2994624A (en) * 1957-10-11 1961-08-01 Gen Electric Wire coating apparatus and method
US3018199A (en) * 1957-11-22 1962-01-23 Gen Electric Method of coating wire and apparatus therefor
US3018755A (en) * 1958-10-27 1962-01-30 Borden Co Method and apparatus for making hose
US20080213589A1 (en) * 2007-03-02 2008-09-04 Yazaki Corporation Element wire, electric wire and process for producing element wire
CN102122550A (zh) * 2010-01-08 2011-07-13 日立卷线株式会社 扁平漆包线用涂装模具以及扁平漆包线的制造方法

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2433673A (en) * 1944-08-23 1947-12-30 Gen Electric Die for coating wire
US2575911A (en) * 1948-02-27 1951-11-20 Gen Electric Wire enameling die
US2812007A (en) * 1954-07-16 1957-11-05 Painter Corp E Z Apparatus for and method of continuously producing paint roller cover sections
US2880698A (en) * 1956-03-08 1959-04-07 Belden Mfg Co Apparatus for applying axially extending stripes to the surface of an insulated wireor cord
US2875725A (en) * 1956-06-26 1959-03-03 Gen Electric Wire coating device
US2965068A (en) * 1957-10-09 1960-12-20 Painter Corp E Z Apparatus for applying liquid adhesive to an advancing cylinder
US2994624A (en) * 1957-10-11 1961-08-01 Gen Electric Wire coating apparatus and method
US3018199A (en) * 1957-11-22 1962-01-23 Gen Electric Method of coating wire and apparatus therefor
US3018755A (en) * 1958-10-27 1962-01-30 Borden Co Method and apparatus for making hose
US20080213589A1 (en) * 2007-03-02 2008-09-04 Yazaki Corporation Element wire, electric wire and process for producing element wire
US9492856B2 (en) * 2007-03-02 2016-11-15 Yazaki Corporation Element wire, electric wire and process for producing element wire
CN102122550A (zh) * 2010-01-08 2011-07-13 日立卷线株式会社 扁平漆包线用涂装模具以及扁平漆包线的制造方法
US20110171368A1 (en) * 2010-01-08 2011-07-14 Hitachi Magnet Wire Corp. Die for flat wire coating and manufacturing method of enameled flat wire
JP2011142030A (ja) * 2010-01-08 2011-07-21 Hitachi Magnet Wire Corp 平角エナメル線用塗装ダイス及び平角エナメル線の製造方法
US20130300022A1 (en) * 2010-01-08 2013-11-14 Hitachi Magnet Wire Corp. Manufacturing method of enameled flat wire using die for flat wire coating
US8677926B2 (en) * 2010-01-08 2014-03-25 Hitachi Magnet Wire Corp. Die for flat wire coating and manufacturing method of enameled flat wire
CN102122550B (zh) * 2010-01-08 2014-11-05 日立金属株式会社 扁平漆包线用涂装模具以及扁平漆包线的制造方法
US9111664B2 (en) * 2010-01-08 2015-08-18 Hitachi Metals, Ltd. Manufacturing method of enameled flat wire using die for flat wire coating
US9330817B2 (en) 2010-01-08 2016-05-03 Hitachi Metals, Ltd. Enameled flat wire

Also Published As

Publication number Publication date
DE910175C (de) 1954-04-29
BE472001A (enrdf_load_stackoverflow)

Similar Documents

Publication Publication Date Title
US2287589A (en) Wire coating die
US2997519A (en) Multicoaxial line cables
US2863130A (en) Coil construction for electromagnetic induction apparatus
US3237136A (en) Coils for inductive apparatus
US2960756A (en) Method of making magnetic cores
US3558803A (en) Magnet strip conductor
US2875725A (en) Wire coating device
US2271986A (en) Wire coating die
US3025483A (en) Magnetic core
US2225593A (en) Transformer winding support
US3742116A (en) Transposed electric cable and method of producing the same
US1641272A (en) Transformer winding
US1763150A (en) Reactor system
US2333464A (en) Stepped outline wound core
US2831050A (en) Crepe paper insulation
US2462191A (en) Method of winding coils
US3141632A (en) Coil winding form
US2647976A (en) Electrical resistor
US3783427A (en) Layer winding for electrical apparatus
US2575911A (en) Wire enameling die
US1469469A (en) Method of and means for applying the insulation of high-tension coils
US1389149A (en) Insulating-coil and method of making same
US3018199A (en) Method of coating wire and apparatus therefor
SU301746A1 (ru) Способ изготовлени круглых катушек электрических аппаратов по методу Истомина
US1760975A (en) Inductor