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DE1069727B - - Google Patents

Info

Publication number
DE1069727B
DE1069727B DENDAT1069727D DE1069727DA DE1069727B DE 1069727 B DE1069727 B DE 1069727B DE NDAT1069727 D DENDAT1069727 D DE NDAT1069727D DE 1069727D A DE1069727D A DE 1069727DA DE 1069727 B DE1069727 B DE 1069727B
Authority
DE
Germany
Prior art keywords
cable
core
stranded
screw press
cores
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.)
Pending
Application number
DENDAT1069727D
Other languages
German (de)
Publication date
Publication of DE1069727B publication Critical patent/DE1069727B/de
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06Insulating conductors or cables
    • H01B13/14Insulating conductors or cables by extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/06Rod-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/12Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/13Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15Extrusion 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
    • B29C48/156Coating two or more articles simultaneously

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electric Cables (AREA)

Description

Schneckenpresse zum Ummanteln einer beilauffreien Starkstromkabels eele Zusatz zum Patent 1 816 Mehradrige elektrische Kabel sind bereits bekannt, bei denen ein nahtloser Mantel auf der Umfangskontur der beilauffreien, aus den Adern gebildeten Kabel seele aufliegt. Die Fertigung des Kabelmantels macht keine Schwierigkeiten, wenn die Kabelseele aus unverseilt nebeneinanderliegenden Adern besteht. Je doch ist ein solches Kabel für den praktischen Gebrauch ungeeignet, weil es sich nicht einwandfrei biegen läßt. Andererseits muß ein Kabel, dessen Seele aus beilauffrei verseilten Adern besteht, bei der Herstellung des Mantels um seine Längsachse gedreht werden, wenn der Mantel auf die Umfangskontur der beilauffreien Kabelseele aufgeschmiegt werden soll. Screw press for sheathing an overflow-free power cable eele addition to patent 1 816 Multi-core electrical cables are already known in which a seamless jacket on the circumferential contour of the pass-free, from the Cores formed cable core rests on it. The production of the cable jacket does not do any Difficulties when the cable core is made up of cores that are not stranded next to each other consists. However, such a cable is unsuitable for practical use, because it cannot be bent properly. On the other hand, a cable must have its soul consists of cores stranded without running, during the production of the jacket around his Longitudinal axis can be rotated when the jacket is on the circumferential contour of the idle Cable core should be snuggled on.

Das macht fabrikatorisch Schwierigkeiten.That makes manufacturing difficulties.

Im deutschen Patent 1 026 816 ist bereits eine mit Vakuum betriebene Schneckenpresse zum Umspritzen von vordrallierten Sektorleitern vorgeschlagen. deren Einführungskanal für den vordrallierten Leiter eine darin um den Leiter drehbar angeordnete Labyrinthdichtung aus metallischen Teilen aufweist. In the German patent 1 026 816 there is already a vacuum operated Suggested screw press for encapsulating pre-twisted sector ladders. whose Introduction channel for the pre-twisted conductor one therein rotatable around the conductor having arranged labyrinth seal made of metallic parts.

Mit einer solchen Schneckenpresse lassen sich die oben angeführten Schwierigkeiten bei der Herstellung eines Mantels über einer beilauffreien. aus verseilten Adern bestehenden Kabelseele vermeiden. Gemäß der Erfindung wird daher vorgeschlagen, eine Schneckenpresse mit einer im Einführungskanal der zu umspritzenden Kabelseele drehbar angeordneten Laby rinthdichtung nach Patent 1 026 816 zum Ummanteln einer aus verseilten Adern bestehenden, beilauffreien Starkstromkabelseele mit einem in bekannter Weise auf den Außenkonturen derAdern anliegenden Mantel aus thermoplastischen und/oder vulkanisierbaren Stoffen zu verwenden. Die Einführungsöffnung der Labyrinthrichtung wird dem Querschnittsprofil der beilauffreien Kabelseele angepaßt. With such a screw press, the above-mentioned Difficulty in making a mantle over an idler. the end Avoid stranded cores of existing cable core. According to the invention, therefore proposed a screw press with one in the inlet channel to be encapsulated Cable core rotatably arranged labyrinth seal according to patent 1 026 816 for sheathing a heavy current cable core consisting of stranded cores, without an incline, with a in a known manner on the outer contours of the veins lying on the thermoplastic sheath and / or vulcanizable substances to be used. The insertion opening of the labyrinth direction is adapted to the cross-sectional profile of the cable core without the overflow.

Die Figuren dienen zur Erläuterung der Erfindung Fig. 1 zeigt den Querschnitt eines vieradrigen Kabels, dessen Aderisolierungen aus Kunststoff bestehen und dessen die verseilten Adern einschließender Mantel in bekannter Weise durch Vakuum zum Anliegen an der Außenkontur der verseilten Adern gebracht ist; Fig. 2 zeigt den Querschnitt eines dreiadrigen Hochspannungskabels, bei dem jede Ader mit Blei ummantelt ist und die drei verseilten Adern von dem gemeinsamen Kunststoffmantel umhüllt sind; Fig. 3 zeigt schematisch die Einrichtung zur Herstellung des erfindungsgemäßen Kabels. The figures serve to explain the invention. FIG. 1 shows the Cross-section of a four-core cable, the core insulation of which is made of plastic and its sheath enclosing the stranded cores in a known manner Vacuum is brought to rest on the outer contour of the stranded wires; Fig. 2 shows the cross-section of a three-core high-voltage cable in which each core has Lead is sheathed and the three stranded cores are sheathed in a common plastic sheath are wrapped; Fig. 3 shows schematically the device for producing the invention Cable.

Jeder Kabelleiter 1 ist mit der Isolierhülle 2 umgeben und gegebenenfalls in einem Metallmantel 3 eingeschlossen. Der gemeinsame. auf den Außenkonturen der verseilten Adern aufliegende Mantel 4 wird in dem Kopf 5 der Schneckenpresse erzeugt, die den Vakuumschluß 6 aufweist. Die an der Einführung angeordnete Abdichtungsvorrichtung 7 paßt sich dem sich ständig ändernden Querschnittsprofil der verseilten Adern 8 an. Das aus der Schneckenpresse austretende und mit der Umhüllung versehene Kabelstück ist mit 9 bezeichnet. An Stelle der drehbar angeordneten Labyrinthdichtung kann die Abdichtungsvorrichtung auch als eine aus mehreren zusammenarbeitenden Gummiplatten bestehende Irisblende ausgeführt sein. Each cable conductor 1 is surrounded by the insulating sleeve 2 and, if necessary enclosed in a metal jacket 3. The common one. on the outer contours of the stranded cores overlying jacket 4 is generated in the head 5 of the screw press, which has the vacuum seal 6. The sealing device located at the inlet 7 adapts to the constantly changing cross-sectional profile of the stranded cores 8 at. The piece of cable emerging from the screw press and provided with the sheath is denoted by 9. Instead of the rotatably arranged labyrinth seal can the sealing device also as one of several co-operating rubber plates existing iris diaphragm.

PATENTANSPROCFIE 1. Verwendung einer Schneckenpresse mit einer im Einführungskanal der zu umspritzenden Kabelseele drehbar angeordneten Labyrinthdichtung nach Patent 1 026 816 zum Ummanteln einer aus verseilten Adern bestehenden, beilauffreien Starkstromkabelseele mit einem in bekannter Weise auf den Außenkonturen der Adern anliegenden Mantel aus thermoplastischen und/oder vulkanisierbaren Stoffen. PATENT APPLICATION 1. Use of a screw press with an im Entry channel of the cable core to be overmolded, rotatably arranged labyrinth seal according to patent 1 026 816 for sheathing a stranded wire that is free of waste Power cable core with a known manner on the outer contours of the veins adjacent sheath made of thermoplastic and / or vulcanizable materials.

Claims (1)

2. Schneckenpresse nach Patentanspruch 1, dadurch gekennzeichnet. daß die Einführungsöffnung der Labyrinthdichtung dem Querschnittsprofil der beilauffreien Kabelseele angepaßt ist. 2. Screw press according to claim 1, characterized. that the insertion opening of the labyrinth seal corresponds to the cross-sectional profile of the inlet-free Cable core is adapted. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 25 772; österreichische Patentschrift Nr. 114 281; französische Patentschrift Nr. 757 489; USA.-Patentschrift Nr. 2 550 555. Publications considered: German Patent No. 25 772; Austrian Patent No. 114 281; French patent specification No. 757 489; U.S. Patent No. 2,550,555.
DENDAT1069727D Pending DE1069727B (en)

Publications (1)

Publication Number Publication Date
DE1069727B true DE1069727B (en) 1959-11-26

Family

ID=594784

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT1069727D Pending DE1069727B (en)

Country Status (1)

Country Link
DE (1) DE1069727B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE25772C (en) * R. S. WARING in Pittsburg, Pennsylv., V. St. A Innovations in electrical cables and in the process of making the same
AT114281B (en) * 1927-11-04 1929-09-25 Kabelfabrik Und Drahtindustrie Multi-conductor electrical cable and process for its manufacture.
FR757489A (en) * 1932-09-22 1933-12-27 Electro Cable Soc Method and apparatus for the manufacture of electric cables and resulting products
US2550555A (en) * 1949-05-11 1951-04-24 Western Electric Co Apparatus for extruding materials on cores under vacuum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE25772C (en) * R. S. WARING in Pittsburg, Pennsylv., V. St. A Innovations in electrical cables and in the process of making the same
AT114281B (en) * 1927-11-04 1929-09-25 Kabelfabrik Und Drahtindustrie Multi-conductor electrical cable and process for its manufacture.
FR757489A (en) * 1932-09-22 1933-12-27 Electro Cable Soc Method and apparatus for the manufacture of electric cables and resulting products
US2550555A (en) * 1949-05-11 1951-04-24 Western Electric Co Apparatus for extruding materials on cores under vacuum

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