Ribbon cable extrusion apparatus

Details Ribbon cable extrusion apparatus Ribbon cable extrusion apparatus

1977-06-22

1979-04-24

Lake, Roy

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Extrusion shaping means

425190, 425380, 425466, B29F 304

Patent

active

041509293

ABSTRACT:
In a ribbon cable extrusion die assembly, a large plurality of fine electrical conductor wires, numbering from 20 up to 50, 60 or more, are led through a core tube via individual quills. Molten plastic insulating material is delivered to the exterior of the core tube, and surrounds the plurality of the conductor wires as they emerge from the core tube to enter the extrusion die. The aligned array of conductor wires and the molten plastic insulating material pass together through the extrusion die, which incorporates a cylndrical die passage for each individual conductor wire, with web passages connectng the cylindrical passages to form a unitary ribbon cable extrusion emerging from the extrusion die. The guiding quills are individually removable from the core tube, in response to the actuation of automatic wire breakage sensing and alarm systems for quick replacement of a broken conductor wire by a new unbroken conductor wire. Fine adjustment of the extruded insulation thickness, and extremely sensitive positioning of the conductor wires within the cylindrical die passages, are both achieved by translational and rotational rocking adjustment movement of the extruder die within the housing, controlled by five separate adjustable set screws which permit the equalization of insulation thickness on all sides of all of the arrayed parallel conductor wires forming the ribbon cable extrusion.

REFERENCES:
patent: 3112527 (1963-12-01), Pankratz et al.
patent: 3461501 (1969-08-01), Stewart
patent: 3752614 (1973-08-01), Bremer
patent: 3758247 (1973-09-01), Deegen
patent: 3776670 (1973-12-01), Antioletti et al.
patent: 4081232 (1978-03-01), Pemberton et al.

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