Device and procedure for forming a point on wire ends
AssigneeMasohinenfabrik Niehoff GmbH & Co. KG
InventorJosef Leipold
Life of this patent
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Abstract
The invention relates to a device for forming points on the ends of wires having receiving means for receiving a wire, a heating device, as well as means for stretching the wire, in addition to a procedure for forming points on the ends of wires.
Claims18
Device for forming a point on the ends of wires, characterized by
- a first means (12) for receiving the wire;
- at least one second means (14) for receiving the wire;
- at least one heating device which heats the wire in a section between said first receiving means (12) and said second receiving means (14);
- and
- at least one means which stretches the wire in the heated section according to pre-defined conditions and in particular in the direction of the longitudinal axis of the wire.
Device according to one of the preceding claims, characterized in that said heating device is configured as an electrical heating means and comprises at least one electrical contact point for contacting a first section of the wire as well as at least one second electrical contact point for contacting a second section of the wire, whereby an electrical voltage drop occurs between said electrical contact points.
Device according to one of the preceding claims, characterized in that said first electrical contact point is arranged on said first receiving means (12) and said second electrical contact point is arranged on said second receiving means (14).
Device according to one of the preceding claims, characterized in that said electrical contact points are arranged to be relatively movable with respect to one another so that the distance between said electrical contact points may be changed.
Device according to one of the preceding claims, characterized in that said first (12) and/or said second receiving means (14) is/are configured as clamping means in which the wire is clamped.
Device according to one of the preceding claims, characterized in that said second receiving means (14) comprises at least one component (46) which is arranged to be relatively movable with respect to said first receiving means (12).
Device according to one of the preceding claims, characterized in that said second receiving means (14) comprises a rotatably arranged component (46), such as a disk or similar element on which the wire can be clamped.
Device according to one of the preceding claims, characterized in that an electrical voltage drop acting between said electrical contact points induces a heating of the wire extending between said electrical contact points, and the stretching of the wire, which is generated in particular by a relative movement of said receiving means (12;
- 14), induces the wire to separate at a predetermined heated section.
Device according to one of the preceding claims, characterized in that said first electrical contact point is arranged on a clamping member (24) of said first receiving means (12) which contacts the wire to be pointed in the area of said first electrical contact point and/or said second electrical contact point is arranged on a clamping member (34) of said second receiving means (14) which contacts the wire to be pointed in the area of said second electrical contact point.
Device according to one of the preceding claims, characterized in that said first (12) and/or second receiving means (14) is configured so as to be adjustable for clamping wires of differing diameters.
Procedure for forming a point on the ends of wires, characterized by the steps:
- heating of at least one predetermined section of the wire;
- and
- stretching of the heated section at a predetermined load and in particular in the longitudinal direction to the axis of the wire.
Dependencies are inferred from the claim text.