US 4,207,928 A · Process for manufacturing twisted wire articles with variable direction of twist and a machine for accomplishing same

Abstract

This process provides for twisting continuously supplied wires in one of preset directions with an essentially uniform pitch of twist ensuring the maximum number of lays in the zone of preliminary twisting, while simultaneously twisting the wires in the opposite direction in the zone of final twisting of wires to form an article. The machine for accomplishing the process comprises, sequentially mounted on a bed, an unwinding device, a twisting mechanism, a pull-out mechanism and a take-up mechanism. Arranged between the unwinding device and the twisting mechanism are guides accommodating a carriage having a reciprocation drive. According to the invention, the machine is provided with an auxiliary twisting head mounted on the carriage and provided with a drive for rotating the head synchronously with the twisting head of the twisting mechanism.

Claims5

Dependent claims

A process for manufacturing twisted wire articles with variable direction of twist comprising:

continuously feeding wires to series-arranged zones of preliminary and final twisting;
twisting said wires with a rotating twisting head in one of preset directions in the zone of preliminary twisting while translating the twisting head to obtain an essentially uniform pitch of twist thereby ensuring the maximum number of lays in said zone, while simultaneously twisting the wires in the opposite direction in the zone of final twisting of wires to form an article;
and subsequently untwisting the pre-twisted wires in the zone of preliminary twisting by rotating the twisting head in a direction opposite the first direction of rotation while simultaneously translating the twisting head in a direction opposite the first direction of translation and simultaneously twisting the wires in the opposite direction in the zone of final twisting of wires to form an article.

Dependencies are inferred from the claim text.

Process for manufacturing twisted wire articles with variable direction of twist and a machine for accomplishing same

Life of this patent

Process for manufacturing twisted wire articles with variable direction of twist and a machine for accomplishing same

Life of this patent

Abstract

Claims5