US3758247A - Apparatus for making flat cables by extrusion - Google Patents

Apparatus for making flat cables by extrusion Download PDF

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Publication number
US3758247A
US3758247A US00136934A US3758247DA US3758247A US 3758247 A US3758247 A US 3758247A US 00136934 A US00136934 A US 00136934A US 3758247D A US3758247D A US 3758247DA US 3758247 A US3758247 A US 3758247A
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Prior art keywords
die
die block
cores
channel
diversion
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Expired - Lifetime
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US00136934A
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English (en)
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A Deegen
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International Business Machines Corp
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International Business Machines Corp
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0014—Extrusion moulding in several steps, i.e. components merging outside the die producing flat articles having components brought in contact outside the extrusion die
    • 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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/156—Coating two or more articles simultaneously
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/345—Extrusion nozzles comprising two or more adjacently arranged ports, for simultaneously extruding multiple strands, e.g. for pelletising
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • 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
    • H01B13/14—Insulating conductors or cables by extrusion
    • 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
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Definitions

  • ABSTRACT [52] U.S. Cl 425/114, 425/192, 264/172 [51] Int. Cl 829i 3/10 Crosshead die for coating flat cables, in which the melt [58] Field of Search 425/ 114, 188, I90, flow is split into two partial flows and two diversion 425/192; 264/172 rollers with helical grooves are provided to guide and divert the partial flows after conversion of their cross- [56] References Cited sections.
  • Path and pressure compensation is, for exampleQobta'ined by extending the inner arc of the flow path and all paths between the border arcs by compensating elements such as core pieces or deceleration fittings which lengthen the flow paths so that the total path of the material in the inner arc is similar to that in the outer arc.
  • compensating elements such as core pieces or deceleration fittings which lengthen the flow paths so that the total path of the material in the inner arc is similar to that in the outer arc.
  • a flat cable making apparatus having a die which extrudes dual rectangular plastic melt flows onto an array of a plurality of cores, such as conductor wires from opposite sides of the array.
  • the die is a crosshead die in which a single melt flow is split into two partial flows and the cross-sections of the partial flows are made rectangular before extrusion onto the array.
  • channel means including two helical paths is provided in the die for guiding and diverting the melt flows of rectangular cross-section.
  • the die comprise dual block members through which the plurality of cores and the plastic melt flows are moved separately and then extruded at a common point.
  • the die members are preferably hinged together so as to be separable to allow repair, cleaning, changing of wires in the die, with a minimum of effort.
  • Each block is provided with a separate wire guide means which preferably takes the form of flat plates which are attached to the blocks in cantilever fashion and which coact therewith to form a rectangular flow channel means in the region proximate the wires where extrusion takes place;
  • the wire guides are very slightly deflectable towards each other due to pressureof the plastic in the channels thereby causing the wire guides'to hold the wires firmly and precisely in their predetermined relative locations as the melt flows extruded thereon.
  • the helical paths mentioned above are designed as helical grooves of rectangular cross-section in the surface of two cylindricaldiversion pins or rods mounted to the die block members and coacting with the channel means therein.
  • the groove in the surface of each diversion pin extends over an arc portion of the periphery thereof, the are being less than a full pitch.
  • the base region of each groove tapers off tangentially in its two end regions from which the melt flow leaves and into which it enters, respectively.
  • The-diversion pins are set at half the angle of diversion for the entry of the melt flow into the die.
  • the melt flows are preferably diverted by
  • the pins are set at an angle of 45 to permit are entry of the melt flow. Less acute diversions of the material by say 45 and 60, respectively, are equally favorable.
  • the path length for each individual cross-sectional element is identical.
  • FIG. 1 is a perspective drawing which represents a diagrammatic version illustrating the spatial relationship of the melt flows between the extruder exit and the crosshead die exit;
  • FIG. 2a is a perspective view of the diversion pins used in the crosshead die of this invention.
  • FIG. 2b is a cross-sectional view of the diversion pins shown in FIG. 2a;
  • FIG. 3 is a sectional view of a crosshead die in accordance with this invention and whichprovides the plastic melt flow arrangement illustrated in FIG. 1;
  • FIG. 4 is a section taken along line 44 of FIG. 3;
  • FIG. 5 is a section taken along line 5-5 of FIG. 4;
  • FIG. 6 is a section of the crosshead die taken along line 6-6 of FIG. 5;
  • FIG. 7 is an enlarged fragment of the die of the preceding Figures witha portion shown in sections taken along lines 7--7 of FIG. 6.
  • the melt flow 18 in FIG. 1 which consists of rubber or plastics such as polyethylene, polypropylene or their copolymers, or polyvinyl chloride and the like, and which comes from the screw extruder, is continuously forced through the die, as is hereafter described by means of FIGS. 3 and 4. Simultaneously, the non-preheated wires 19, which are to be coated, enter the die from the left. Flat cable 20 is hauled off at a speed of about 10 m per minute. In the die the melt flow 18 is split into two symmetrical partial flows 18a, 18b.
  • the circular cross-sections of these partial flows are changed to rectangular ones by correspondingly shaped channels in the die, as is hereafter explained in greater detail.
  • the extrusion cross-section of the melt flow decreases uniformly between the exit of the screw extruder and the die exit.
  • the cylindrical diversion pins 8, 9 shown in FIGS. 2a and 2b the two partial flows 18a, 18b are diverted to a new axis which is inclined or arranged at right angles to the axis of the melt flow 18, and after diversion the two partial flows converge from above and below against the parallel guided wires 19 to form the flat cable 20.
  • FIGS. 3 and 4 The crosshead die in accordance with the invention is shown in FIGS. 3 and 4.
  • the crosshead die is fixed to the extruder housing with the threaded part of flange 3 by means of cap screws 2.
  • thermoplastic material or the rubber
  • the distance between the exit of the screw extruder and the crosshead die exit must be as short as possible.
  • the melt flow initially distributes itself in the annular channel 6 between the conical end of extruder screw 1 and a corresponding conical recess of the forming block 4.
  • the tip of extruder screw 1 is chamfered to generate a tumbling motion in the melt flow, thus preventing an overheated zone at the end of the screw.
  • the temperature of the screw end is, for example, 175 C.
  • the flow is forced through a filter set 5 consisting of four wire mesh filters of different mesh number, for example, 80, 3,500, 900, and meshes/cm.
  • the melt flow is symmetrically split.
  • the V-shaped channel 7 is followed by channel portions 70, 7b between cover plate 13a (top) and forming block (top) and cover plate 13b (bottom) and forming block 12b (bottom), respectively.
  • the cross-section of the channel portions 7a, 7b decreases continuously in the direction of the diversion pins 8, 9 and to the location identified by reference lines 21 and 22.
  • the circular cross-sections of the symmetrically split melt flows 18a, 18b (FIG. 1) are changed to rectangular ones.
  • thermoplastic material flows through V-shaped channel 7 into channel portions 7a, 7b up to the diversion pins 8, 9 which are provided to guide and divert the melt flows 18a, 18b of rectangular cross-section.
  • the surface of each diversion pin 8, 9 is provided to this end with a helical shallow groove 81, 91 which accommodates the melt flow of rectangular cross-section.
  • the coated flat cable leaves the crosshead die through an orifice 17 formed by orifice blocks 27 and 29 which are provided at the exit of the crosshead die. By suitably shaping this orifice, grooves are generated in those parts of the surface of flat cable 20 in which there are no wires.
  • the width of the cooled flat cable is 29.2 mm and the thickness 0.7 mm.
  • Cover plate 13a (top) and forming block 120 (top) are pivotable on hinge bolt 15 by means of handle 16 of a locking device, which retains the cover plate 13a and the forming block 120 in the folded down state.
  • This hinge construction permits cover plate 13a and forming block 12a to be opened to permit cleaning the arrangement as well as to replace wires and internal parts.
  • the temperatures are measured by thermocouples 14.
  • the maximum temperature in the crosshead die is 240C when using polyethylene. Heating devices and design details thereof have been omitted for clarity's sake.
  • the diversion pins 8, 9 As best seen in FIGS. 20 and 2b include in their surface a helical shallow groove of rectangular cross-section to accommodate the shallow melt flow.
  • the helical grooves 81, 91 do not extend over the full pitch of their respective cylindrical diversion rollers and taper off in their end regions 82, 92 into which the melt flows enter and from which they leave, respectively.
  • the die comprises longitudinal grooves 83, 93 for locking the diver sion pins 8, 9 in position in forming blocks 12a and 12b.
  • the wire guides 11a and 11b are specially designed to clamp the moving wires firmly in the positions they are to occupy in the finished cable.
  • the wire guide 11a takes the form of a rectangular plate and is mounted within a recess in the bottom of forming block 12a.
  • Wire guide 11a has a base portion 23 fixedly attached to block 12a by means such as screws 24.
  • the front end of guide 11a has an extension portion 25 which terminates in a taper and forms a channel 26 with block 12a and upper orifice block 27.
  • wire guide 11b has a base portion 28, attached by screws 29 into a recess of forming block 12b, with an extension 30 which terminates in a taper and which coacts with forming block 12b and orifice block 29 to form a channel 31.
  • the tapered ends of the extension portions 25 and 30 of wire guides 11a and 11b engage the wires 19 of FIG. 1 as plastic is extruded from channels 26 and 31 onto the wires and through the orifice.
  • grooves 32 are formed in the upper surface of ex-. tension portion 30 of guide 11b while extension portion 26 of guide 11a is substantially flat. When pressure is applied by plastic in channels 26 and 31, these two surfaces are pressed tightly together so that wires 19 are firmly held in grooves 32.
  • the crosshead die in accordance with the invention in which the melt flow on its way to the orifice is symmetrically split into two partial flows which after conversion of their cross-section to rectangular form are diverted and converge against the wire strand from above and below, has the advantage that the distance between the exit of the screw extruder and the die exit is identical for all cross-sectional elements of the melt flow. Moreover, there is no stagnation zone in which the material might be retained unduly long and thus be decomposed or charred.
  • the manufacturing speed of flat cables by means of the crosshead die in accordance with the invention is essentially higher than that obtainable by known laminating processes wherein plastic tapes are applied to the wire strand from opposite sides and are welded together by heating.
  • apparatus for making flat cable by extruding a sheath of plastic material onto a plurality of parallel coplanar moving cores including extrusion means for producing a single melt flow of circular cross-section and a crosshead die,
  • crosshead die comprising die block means
  • channel means formed insaid die block means havinga first channel portion connected to said extrusion'means for splitting said single melt flow into two separate melt flows and for directing said two separate flows to' opposite sides of and at said angle to said coplanar cores,
  • said channel means in said first channel portion having successively circular then rectangular crosssections said channel means having a second channel portion formed in said die block means for directing said two separate flows on opposite sides of and in a direction parallel with said coplanar cores,
  • said channel means in said second channel portion having a rectangular cross-section and diversion means associated with said die block means and coacting with said channel means thereof for diverting said separate melt flows from said angular to said parallel directions of flow,
  • said diversion means comprises cylindrical diversion pins locatable in said die block means
  • said diversion pins having helical groove means con necting said first portion of 'said channel means at the rectangular cross-section thereof with said second portion of said channel means of said die block channel means.
  • first and second die block members located on opposite sides of said array of cores
  • said die block members being relatively movable to permit opening of said die for removal or insertion of one or more of said cores, said die block members being in spaced apart relation to form a passage for said cores therebetween,
  • said guide means coacting with said die block members to form rectangular cross-sectional channels on opposite sides of said cores for extruding said dual fiat plastic melt flows onto said cores as they move through said passage and said wire guides.
  • first and second guide plates said guide plates having a base portion and an extension portion, said base portion being attached to said die block members and said extension portions extending in cantilever fashion relative to said die block members, i
  • a crosshead die in accordance with claim 2 in which said diversion pins have helical grooves of rectangular cross-section.
  • a crosshead die in accordance with claim 3 in which said helical groove in said diversion pins is formed over an arc of the periphery of said pins.
  • a crosshead die in accordance with claim 4 in which said diversion pins are arranged in said die block means such that the axis of said diversion pins relative to the axis of the single melt flow forms an angleqno greater than 18 i i i t said extension portions coacting withsaid block

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
US00136934A 1970-04-23 1971-04-23 Apparatus for making flat cables by extrusion Expired - Lifetime US3758247A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2019629A DE2019629C3 (de) 1970-04-23 1970-04-23 Spritzkopf für Schneckenstrangpressen zum Umhüllen von Bandkabel

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US3758247A true US3758247A (en) 1973-09-11

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US00136934A Expired - Lifetime US3758247A (en) 1970-04-23 1971-04-23 Apparatus for making flat cables by extrusion

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US (1) US3758247A (OSRAM)
JP (1) JPS5110269B1 (OSRAM)
CA (1) CA975913A (OSRAM)
DE (1) DE2019629C3 (OSRAM)
FR (1) FR2086267B1 (OSRAM)
GB (1) GB1343816A (OSRAM)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947172A (en) * 1972-11-03 1976-03-30 Western Electric Company, Inc. Apparatus for extruding plastic materials
US3997285A (en) * 1974-02-20 1976-12-14 Hachiro Miyazaki Apparatus for molding an extruded product containing a reinforcing material
US4150929A (en) * 1977-06-22 1979-04-24 B & H Tool Company, Inc. Ribbon cable extrusion apparatus
US4274821A (en) * 1980-02-28 1981-06-23 The Steelastic Company Die for extruding reinforced fabric
FR2475976A1 (fr) * 1980-02-15 1981-08-21 Gen Tire & Rubber Co Tete d'extrusion et son procede de fabrication
US4295812A (en) * 1980-06-18 1981-10-20 Crompton & Knowles Corporation Ribbon cable extrusion crosshead
US4341509A (en) * 1979-06-08 1982-07-27 Carlisle Corporation Crosshead extrusion die
FR2523032A1 (fr) * 1982-03-15 1983-09-16 Winfried Meister Procede et dispositif pour la fabrication d'un joint en forme de bande incorporant des armatures de renforcement perpendiculaires a l'axe de la bande et joints ainsi obtenus
US4478778A (en) * 1981-12-18 1984-10-23 Amp Incorporated Method of manufacturing flat peelable cable
US4516922A (en) * 1981-09-29 1985-05-14 At&T Technologies, Inc. Hybrid apparatus for insulating conductors
US4521363A (en) * 1984-01-23 1985-06-04 Essex Group, Inc. Extrusion of a plastic coating about a strand
US5108683A (en) * 1991-04-05 1992-04-28 Vijay Anand Apparatus and method for extruding single and multiple layers of plastic
US20100297277A1 (en) * 2009-05-22 2010-11-25 Vmi-Az Extrusion Gmbh Extrusion Device
US8152506B1 (en) * 2008-05-21 2012-04-10 Atoor Khoshaba Pressure generating device with food compressing attachment
US20160001483A1 (en) * 2013-02-22 2016-01-07 The Yokohama Rubber Co., Ltd. Extruder
US20220242008A1 (en) * 2019-08-26 2022-08-04 Shandong Grad Group Co., Ltd. Pressurizing pre-impregnating die head special for fiber reinforced plastic sheet machine
US20240269910A1 (en) * 2023-02-15 2024-08-15 Voith Patent Gmbh Method and extrusion die for making a structuring fabric

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1471115A (en) * 1973-04-11 1977-04-21 Gen Engineering Co Extrusion of plastics materials
FR2506500A1 (fr) * 1981-05-22 1982-11-26 Filotex Sa Dispositif de fabrication de cables plats
FR2513003A1 (fr) * 1981-09-15 1983-03-18 Filotex Sa Dispositif de fabrication de cables plats avec guide-fils
GB2177044B (en) * 1985-05-29 1989-10-11 Rex Johansen Method and apparatus for extrusion
FR2631280A1 (fr) * 1988-05-16 1989-11-17 Microdia Sa Tete d'extrusion pour la fabrication d'un cable plat

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149002A (en) * 1936-01-18 1939-02-28 Belden Mfg Co Method and apparatus for making divisible electrical conductors
AT168488B (de) * 1948-12-06 1951-06-11 Semperit Ag Drahtführungsteil an Spritzmaschinen
AT238080B (de) * 1962-01-30 1965-01-25 Franz Dipl Ing Nebel Drehkolbenpresse, insbesondere zur Erzeugung von Bauteilen aus Beton mit Eisenarmierung
US3252183A (en) * 1964-01-08 1966-05-24 Western Electric Co Channelled extrusion die
US3383736A (en) * 1965-08-19 1968-05-21 Whitney Blake Co Communication wire extrusion apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2149002A (en) * 1936-01-18 1939-02-28 Belden Mfg Co Method and apparatus for making divisible electrical conductors
AT168488B (de) * 1948-12-06 1951-06-11 Semperit Ag Drahtführungsteil an Spritzmaschinen
AT238080B (de) * 1962-01-30 1965-01-25 Franz Dipl Ing Nebel Drehkolbenpresse, insbesondere zur Erzeugung von Bauteilen aus Beton mit Eisenarmierung
US3252183A (en) * 1964-01-08 1966-05-24 Western Electric Co Channelled extrusion die
US3383736A (en) * 1965-08-19 1968-05-21 Whitney Blake Co Communication wire extrusion apparatus

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3947172A (en) * 1972-11-03 1976-03-30 Western Electric Company, Inc. Apparatus for extruding plastic materials
US3997285A (en) * 1974-02-20 1976-12-14 Hachiro Miyazaki Apparatus for molding an extruded product containing a reinforcing material
US4150929A (en) * 1977-06-22 1979-04-24 B & H Tool Company, Inc. Ribbon cable extrusion apparatus
US4341509A (en) * 1979-06-08 1982-07-27 Carlisle Corporation Crosshead extrusion die
FR2475976A1 (fr) * 1980-02-15 1981-08-21 Gen Tire & Rubber Co Tete d'extrusion et son procede de fabrication
US4274821A (en) * 1980-02-28 1981-06-23 The Steelastic Company Die for extruding reinforced fabric
US4295812A (en) * 1980-06-18 1981-10-20 Crompton & Knowles Corporation Ribbon cable extrusion crosshead
US4516922A (en) * 1981-09-29 1985-05-14 At&T Technologies, Inc. Hybrid apparatus for insulating conductors
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US8152506B1 (en) * 2008-05-21 2012-04-10 Atoor Khoshaba Pressure generating device with food compressing attachment
US20100297277A1 (en) * 2009-05-22 2010-11-25 Vmi-Az Extrusion Gmbh Extrusion Device
US20160001483A1 (en) * 2013-02-22 2016-01-07 The Yokohama Rubber Co., Ltd. Extruder
US9505160B2 (en) * 2013-02-22 2016-11-29 The Yokohama Rubber Co., Ltd. Extruder
US20220242008A1 (en) * 2019-08-26 2022-08-04 Shandong Grad Group Co., Ltd. Pressurizing pre-impregnating die head special for fiber reinforced plastic sheet machine
US11780119B2 (en) * 2019-08-26 2023-10-10 Shandong Grad Group Co., Ltd. Pressurizing pre-impregnating die head special for fiber reinforced plastic sheet machine
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Also Published As

Publication number Publication date
DE2019629B2 (de) 1974-05-30
JPS5110269B1 (OSRAM) 1976-04-02
GB1343816A (en) 1974-01-16
FR2086267A1 (OSRAM) 1971-12-31
JPS464137A (OSRAM) 1971-11-10
FR2086267B1 (OSRAM) 1974-03-01
DE2019629A1 (de) 1971-11-04
DE2019629C3 (de) 1975-01-09
CA975913A (en) 1975-10-14

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