US2659932A - Extruding apparatus - Google Patents

Extruding apparatus Download PDF

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Publication number
US2659932A
US2659932A US222664A US22266451A US2659932A US 2659932 A US2659932 A US 2659932A US 222664 A US222664 A US 222664A US 22266451 A US22266451 A US 22266451A US 2659932 A US2659932 A US 2659932A
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US
United States
Prior art keywords
opening
insulating material
die
openings
male die
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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
US222664A
Inventor
Owen A Mcnamee
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United States Steel Corp
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United States Steel Corp
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Publication date
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Priority to US222664A priority Critical patent/US2659932A/en
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Publication of US2659932A publication Critical patent/US2659932A/en
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped

Definitions

  • the exit end of the male die 24 is rounded at 39 and tapers inwardly toward the exit end.
  • the female die is provided with a similarly tapered portion 40 adjacent its entry end.
  • the female and male dies are spaced apart to provide a side opening or orifice 42 between the portions 39 and 40.
  • the female die 34 is provided with an axial opening M having a size and shape substantially the same as that of the finished cable.
  • the die head 2 is provided with an opening 42 of such a size that insulating material R can completely surround the die holder IS.
  • the cables and strand S are pulled through the dies 24 and 34 in the usual manner and the screw 8 is rotated to feed insulating material R through the openings 30 and the orifice 42.
  • Insulating material R is extruded around the ground strand S through the opening 28, the exit end of which determines the thickness of insulating material around the strand S.
  • insulating material R is extruded around the entire assembly through the orifice t2 and the die opening 44.
  • the insulating material R will be extruded between the conductors C in the same manner as described above to form the bridge wall. In the same manner the insulating material may be extruded into valleys between conductors in any type of cable.
  • Apparatus for extruding an insulating material around a pair of conductors having a substantially rectangular ground strand therebetween to form a cable which comprises a male die, said male die having two spaced apart substantially circular axial openings therethrough one for each of said conductors and a substantially rectangular axial central opening between the circular openings for receiving the ground strand, said male die having a side opening therein extending outwardly and rearwardly from each side edge of said central opening for receiving insulating material, each of said side openings being disposed at an acute angle to the axial openings in the male die, a female die surrounding the exit end of said male die and spaced therefrom to provide an orifice for the insulating material, said female die having an axial opening therein for receiving the conductors, ground strand and insulating material, said female die extending beyond the exit end of said male die, the exit end of the opening in the female die having a size and shape substantially the same as that of the finished cable, and means for feeding insulating material around said male
  • Apparatus for extruding an insulating material around a pair of conductors having a substantially rectangular ground strand therebetween to form a cable which comprises an extruding head having an opening therein for receiving said insulating material and axially aligned threaded openings communicating with said first named opening, an elongated male die holder threaded into one of said threaded openings and extending through said first named opening toward the second of said threaded openings, said die holder having an axial opening therein for receiving said conductors and ground strand, a male die supported by the end of said die holder adjacent the second threaded opening, said male die having two spaced apart substantially circular axial openings therethrough one for each of said conductors and a substantially rectangular axial central opening between the circular openings for the ground strand, said male die having a side opening therein extend ing outwardly and rearwardly from each side edge of said central opening for receiving insulating material, each of said side openings being disposed at an acute angle to the
  • Apparatus for extruding an insulating material around a multiple conductor cable comprising a male die having an axial opening therein L for each of the conductors to guide their passage therethrough, a smaller axial opening be tween adjacent axial openings, said male die having a side opening therein extending outwardly and rearwardly from each of said smaller openings for receiving insulating material, each or" said side openings being disposed at an acute angle to the axial openings in the male die, a female die surrounding the exit end of said male die and spaced therefrom to provide an outwardly and rearwardly extending opening for the insulating material, said female die having an axial opening therein for receiving the multiple conductor cable and insulating material, said female die extending beyond the exit end of said male die, the exit end of the opening in the female die having a size and shape substantially the same as that of the finished cable, and means for feeding insulating material around said male die from the entry end thereof through said outwardly and rearwardly extending openings
  • Apparatus for extruding an insulating material around a multiple conductor cable comprising an extruding head having an opening therein for receiving said insulating material and axially aligned threaded openings communicating with said first named opening, an elongated male die holder threaded into one of said threaded openings and extending through said first named opening toward the second of said threaded open ings, said die holder having an axial opening.
  • a male die supported by the end of said die holder adjacent the second threaded opening, said male die having an axial opening therein for each of the conductors to guide their passage therethrough and a smaller axial opening between adjacent axial openings, said male die having a side opening therein extending outwardly and rearwardly from each of said smaller openings for receiving 7 insulating material, each of said side openings being disposed at an acute angle to the axial openings in the male die, a female die threaded -into the second threaded opening, said female ing therein for receiving the multiple conductor cable and insulating material, said female die extending beyond the exit end of said male die, the exit end of the opening in the female die having a size and shape substantially the same as that of the finished cable, and means for feeding insulating material from said first named opening through said side openings and orifice.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Description

M NAMEE DZNG APPARATUS I Nov. 24, 1953 -2 Sheets-Sheet 1 Filed p il 24, 1951 Nov. 24, 1953 o. A. MGNAMEE 2,659,932
EXTRUDING APPARATUS Filed April 24, 1951 2 sp ts-sheet 2 lawentor: flmw A. M/VQML E,
place by means of a die holder 36 threaded into an opening 38 in the die head 2. The exit end of the male die 24 is rounded at 39 and tapers inwardly toward the exit end. The female die is provided with a similarly tapered portion 40 adjacent its entry end. The female and male dies are spaced apart to provide a side opening or orifice 42 between the portions 39 and 40. The female die 34 is provided with an axial opening M having a size and shape substantially the same as that of the finished cable. The die head 2 is provided with an opening 42 of such a size that insulating material R can completely surround the die holder IS.
The operation of my device is as follows:
The cables and strand S are pulled through the dies 24 and 34 in the usual manner and the screw 8 is rotated to feed insulating material R through the openings 30 and the orifice 42. Insulating material R is extruded around the ground strand S through the opening 28, the exit end of which determines the thickness of insulating material around the strand S. As the conductors C and strand S pass from the exit end of male die 24 insulating material R. is extruded around the entire assembly through the orifice t2 and the die opening 44.
In making a twin conductor cable without the ground strand S, the insulating material R will be extruded between the conductors C in the same manner as described above to form the bridge wall. In the same manner the insulating material may be extruded into valleys between conductors in any type of cable.
While one embodiment of my invention has been shown and described, it will be apparent that other adaptations and modifications may be made without departing from the scope of the following claims.
I claim:
1. Apparatus for extruding an insulating material around a pair of conductors having a substantially rectangular ground strand therebetween to form a cable, which comprises a male die, said male die having two spaced apart substantially circular axial openings therethrough one for each of said conductors and a substantially rectangular axial central opening between the circular openings for receiving the ground strand, said male die having a side opening therein extending outwardly and rearwardly from each side edge of said central opening for receiving insulating material, each of said side openings being disposed at an acute angle to the axial openings in the male die, a female die surrounding the exit end of said male die and spaced therefrom to provide an orifice for the insulating material, said female die having an axial opening therein for receiving the conductors, ground strand and insulating material, said female die extending beyond the exit end of said male die, the exit end of the opening in the female die having a size and shape substantially the same as that of the finished cable, and means for feeding insulating material around said male die from the entry end thereof through said side openings and orifice.
2. Apparatus for extruding an insulating material around a pair of conductors having a substantially rectangular ground strand therebetween to form a cable, which comprises an extruding head having an opening therein for receiving said insulating material and axially aligned threaded openings communicating with said first named opening, an elongated male die holder threaded into one of said threaded openings and extending through said first named opening toward the second of said threaded openings, said die holder having an axial opening therein for receiving said conductors and ground strand, a male die supported by the end of said die holder adjacent the second threaded opening, said male die having two spaced apart substantially circular axial openings therethrough one for each of said conductors and a substantially rectangular axial central opening between the circular openings for the ground strand, said male die having a side opening therein extend ing outwardly and rearwardly from each side edge of said central opening for receiving insulating material, each of said side openings being disposed at an acute angle to the axial openings in the male die, a female die threaded into the second threaded opening, said female die surrounding the exit end of said male die and spaced therefrom to provide an orifice for the insulating material, said female die having an axial opening therein for receiving the conductors, ground strand and insulating material, said female die extending beyond the exit end of said male die, the exit end of the opening in female die having a size and shape substantially the same as that of the finished cable, and means for feeding insulating material from said first named opening through said side openings and orifice.
3. Apparatus for extruding an insulating material around a multiple conductor cable comprising a male die having an axial opening therein L for each of the conductors to guide their passage therethrough, a smaller axial opening be tween adjacent axial openings, said male die having a side opening therein extending outwardly and rearwardly from each of said smaller openings for receiving insulating material, each or" said side openings being disposed at an acute angle to the axial openings in the male die, a female die surrounding the exit end of said male die and spaced therefrom to provide an outwardly and rearwardly extending opening for the insulating material, said female die having an axial opening therein for receiving the multiple conductor cable and insulating material, said female die extending beyond the exit end of said male die, the exit end of the opening in the female die having a size and shape substantially the same as that of the finished cable, and means for feeding insulating material around said male die from the entry end thereof through said outwardly and rearwardly extending openings.
4. Apparatus for extruding an insulating material around a multiple conductor cable comprising an extruding head having an opening therein for receiving said insulating material and axially aligned threaded openings communicating with said first named opening, an elongated male die holder threaded into one of said threaded openings and extending through said first named opening toward the second of said threaded open ings, said die holder having an axial opening.
therein for receiving said conductors, a male die supported by the end of said die holder adjacent the second threaded opening, said male die having an axial opening therein for each of the conductors to guide their passage therethrough and a smaller axial opening between adjacent axial openings, said male die having a side opening therein extending outwardly and rearwardly from each of said smaller openings for receiving 7 insulating material, each of said side openings being disposed at an acute angle to the axial openings in the male die, a female die threaded -into the second threaded opening, said female ing therein for receiving the multiple conductor cable and insulating material, said female die extending beyond the exit end of said male die, the exit end of the opening in the female die having a size and shape substantially the same as that of the finished cable, and means for feeding insulating material from said first named opening through said side openings and orifice.
OWEN A. McNAMEE.
References Cited in the file of this patent UNITED STATES PATENTS Number Number Name Date Van Gestel Apr. 8, 1888 Flint July 15, 1924 Alderfer June 28, 1927 Trebes May 24, 1932 Shaw et a1. Dec. 11, 1934 Wermine Feb. 28, 1939 Grana Sept. 12, 1950 FOREIGN PATENTS Country Date Great Britain Apr. 4, 1941 Switzerland Mar. 16, 1942 Canada Mar. 8, 1949
US222664A 1951-04-24 1951-04-24 Extruding apparatus Expired - Lifetime US2659932A (en)

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926729A (en) * 1956-04-07 1960-03-01 Zanini Luigi Process to embody wooden laths with coating of plastic material
US2945278A (en) * 1956-04-10 1960-07-19 Pipe Line Service Corp Coating apparatus
US2974713A (en) * 1957-06-10 1961-03-14 Porter Co Inc H K Method of continuously producing reinforced hose
US3166329A (en) * 1961-09-11 1965-01-19 Garvey James Apparatus and method for inserting indicia in soap
US3252183A (en) * 1964-01-08 1966-05-24 Western Electric Co Channelled extrusion die
US4050867A (en) * 1974-12-20 1977-09-27 Industrie Pirelli Societa Per Azioni Extrusion head for extruding plastomeric or elastomeric material on filaments
US4212612A (en) * 1979-07-05 1980-07-15 Western Electric Company, Inc. Apparatus for enclosing a plurality of conductors in a partitioned jacket
US4221756A (en) * 1978-09-15 1980-09-09 Western Electric Company, Incorporated Methods of enclosing a plurality of conductors in a partitioned jacket
US4277642A (en) * 1978-09-15 1981-07-07 Western Electric Company, Inc. Cordage having a plurality of conductors in a partitioned jacket
US5573852A (en) * 1989-04-12 1996-11-12 Vorspann-Technik Gesellschaft M.B.H. Tensioning bundles comprising a plurality of tensioning members such as stranded wires, rods or single wires
US9412495B1 (en) 2011-10-07 2016-08-09 Encore Wire Corporation Wire and cable having integrally formed jacket and partitioned wall members and process and apparatus for making the same

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US380610A (en) * 1888-04-03 Jean t
US1501764A (en) * 1922-04-08 1924-07-15 Warren E Flint Coating device for metallic strips
US1633620A (en) * 1926-10-20 1927-06-28 Sterling W Alderfer Process for the manufacture of tire beads
US1859901A (en) * 1929-09-11 1932-05-24 Bell Telephone Labor Inc Extruding apparatus
US1984038A (en) * 1933-05-20 1934-12-11 Us Rubber Co Electrical cable and cord
US2149002A (en) * 1936-01-18 1939-02-28 Belden Mfg Co Method and apparatus for making divisible electrical conductors
GB535311A (en) * 1939-10-17 1941-04-04 John Shaw And Sons Salford Ltd Improvements in and relating to extrusion apparatus particularly for applying sheathing to electric cables
CH218424A (en) * 1939-04-04 1941-12-15 Electro Chimie Metal Process for manufacturing objects of elongated shape, apparatus for carrying out this process and object obtained by the latter.
CA455025A (en) * 1949-03-08 Mcconnochie Keenan James Manufacture of insulated electric wire and cable
US2522364A (en) * 1944-02-12 1950-09-12 Asea Ab Arrangement in manufacturing of coated welding electrodes

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US380610A (en) * 1888-04-03 Jean t
CA455025A (en) * 1949-03-08 Mcconnochie Keenan James Manufacture of insulated electric wire and cable
US1501764A (en) * 1922-04-08 1924-07-15 Warren E Flint Coating device for metallic strips
US1633620A (en) * 1926-10-20 1927-06-28 Sterling W Alderfer Process for the manufacture of tire beads
US1859901A (en) * 1929-09-11 1932-05-24 Bell Telephone Labor Inc Extruding apparatus
US1984038A (en) * 1933-05-20 1934-12-11 Us Rubber Co Electrical cable and cord
US2149002A (en) * 1936-01-18 1939-02-28 Belden Mfg Co Method and apparatus for making divisible electrical conductors
CH218424A (en) * 1939-04-04 1941-12-15 Electro Chimie Metal Process for manufacturing objects of elongated shape, apparatus for carrying out this process and object obtained by the latter.
GB535311A (en) * 1939-10-17 1941-04-04 John Shaw And Sons Salford Ltd Improvements in and relating to extrusion apparatus particularly for applying sheathing to electric cables
US2522364A (en) * 1944-02-12 1950-09-12 Asea Ab Arrangement in manufacturing of coated welding electrodes

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926729A (en) * 1956-04-07 1960-03-01 Zanini Luigi Process to embody wooden laths with coating of plastic material
US2945278A (en) * 1956-04-10 1960-07-19 Pipe Line Service Corp Coating apparatus
US2974713A (en) * 1957-06-10 1961-03-14 Porter Co Inc H K Method of continuously producing reinforced hose
US3166329A (en) * 1961-09-11 1965-01-19 Garvey James Apparatus and method for inserting indicia in soap
US3252183A (en) * 1964-01-08 1966-05-24 Western Electric Co Channelled extrusion die
US4050867A (en) * 1974-12-20 1977-09-27 Industrie Pirelli Societa Per Azioni Extrusion head for extruding plastomeric or elastomeric material on filaments
US4221756A (en) * 1978-09-15 1980-09-09 Western Electric Company, Incorporated Methods of enclosing a plurality of conductors in a partitioned jacket
US4277642A (en) * 1978-09-15 1981-07-07 Western Electric Company, Inc. Cordage having a plurality of conductors in a partitioned jacket
US4212612A (en) * 1979-07-05 1980-07-15 Western Electric Company, Inc. Apparatus for enclosing a plurality of conductors in a partitioned jacket
US5573852A (en) * 1989-04-12 1996-11-12 Vorspann-Technik Gesellschaft M.B.H. Tensioning bundles comprising a plurality of tensioning members such as stranded wires, rods or single wires
US9412495B1 (en) 2011-10-07 2016-08-09 Encore Wire Corporation Wire and cable having integrally formed jacket and partitioned wall members and process and apparatus for making the same

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