US 9,520,700 B2 · Machines and methods for removing screen from cable

Abstract

Machines and methods for removing screens from cable, wherein screen surrounds at least one electrical or optical conductor (22). The screen may be a braided screen (21) from a cable (19) including at least one conductor (22), screen (21), and outer insulation (20). After baring screen (21) by removing outer insulation (20), a section is deformed and/or unbraided, and then the deformed section of the screen (21) is cut off. The step of deforming and/or unbraiding is accomplished by lifting-off the screen (21) from the inner conductor (22) on at least one end of the section of the screen (21) to be removed, at least over a part of the circumference of the cable. This step additionally includes or may be followed by pressing the parts of the screen (21), that have been lifted off onto an erection surface (28) before cutting them off, whereby preferably the parts of the screen (21) that have been lifted off are bent backwards in the direction of the yet undeformed screen (21).

Claims20

Dependent claims

A machine for removing screen from cable comprising, a cable screen deformation unit, said cable screen deformation unit including a rotating member configured to press lifted cable screen onto a lifting surface, said rotating member having an axis of rotation, said axis of rotation being oblique to a cable-longitudinal-axis section taken at a location of said rotating member, said rotating member being movable relative to cable in a direction transversely to a cable longitudinal axis, said rotating member being elastically biased onto the cable, said cable screen deformation unit including a lifting surface, said lifting surface having a section oriented oblique relative to the cable longitudinal axis;

and, a cutting head configured to cut off deformed screen, and at least one rotating cutting blade in said cutting head;
and, at least one rotationally fixed cutting blade cooperating with said at least one rotating cutting blade for screen cutting.

A method for removing screen from cable having a cable screen deformation unit, said cable screen deformation unit including a rotating member configured to press lifted cable screen onto a lifting surface, said rotating member having an axis of rotation, said axis of rotation being oblique to a cable-longitudinal-axis section taken at a location of said rotating member, said rotating member being movable relative to cable in a direction transversely to a cable longitudinal axis, said rotating member being elastically biased onto the cable, said cable screen deformation unit including a lifting surface, said lifting surface having a section oriented oblique relative to the cable longitudinal axis;

and, a cutting head configured to cut off deformed screen, and at least one rotating cutting blade in said cutting head;
and, at least one rotationally fixed cutting blade cooperating with said at least one rotating cutting blade for screen cutting, the method comprising the steps of:
deforming a section of screen limited to a part of the circumference of a cable by the steps of (a) lifting off the screen from an inner conductor at least over a part of the circumference of the cable, and, (b) pressing the lifted screen onto a lifting surface by bending it backwards in the direction of undeformed screen;
cutting off the deformed section of screen;
and, performing all of said steps in synchronous rotation around an at least temporarily spatially fixed cable while continuously advancing the cable axially.

2 more elements

Dependencies are inferred from the claim text.

Machines and methods for removing screen from cable

Life of this patent

Machines and methods for removing screen from cable

Life of this patent

Abstract

Claims20