FIELD: technological processes.
SUBSTANCE: device contains a punch for bending the middle part of the wire and a wire feeding mechanism. The punch and the wire feeding mechanism are coaxially rotatable with respect to each other. The lower part of the punch is cylindrical and is equipped with a screw mechanism for coiling the wire and a device for gripping the middle part of the wire. The wire feed mechanism is made in the form of a matrix with a reciprocal cylindrical recess for the lower working part of the punch. The matrix of the wire feeding mechanism is provided with a transverse through hole, inclined from the bottom of the cylindrical recess of the upper point of the wire coiling mechanism therein. In this case, the device for gripping the middle part of the wire is made in the form of a longitudinal cut along the axis of the screw mechanism.
EFFECT: simplified design and higher speed of manufacturing of twisted spirals.
2 cl, 13 dwg
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