Apparatus for the winding of helical springs

Details Apparatus for the winding of helical springs Apparatus for the winding of helical springs

1978-09-19

1980-07-29

Combs, Ervin M.

Metal deforming

By deflecting successively-presented portions of work during...

To form helical coil or tube

B21F 304

Patent

active

042144663

ABSTRACT:
An apparatus for winding spring wire from a stationary supply spool into a helical or spiral spring. The apparatus is equipped with a rotationally driven winding mandrel having a forward end and being provided with a radial slot at its forward end for the reception of the spring wire. The mandrel is axially movable with the increasing length of a helical or spiral spring, from a withdrawn or forward initial position into a projecting final position. The apparatus further includes a transfer head, having a guide channel, positioned adjacent to the final position of the mandrel and with the guide channel in the transfer head coaxially aligned with the mandrel, for the passage of the spring therethrough. At least one roller compressively biased against the forward end of the mandrel in the final position thereof and is rotatable in a plane passing through the rotational axis of the mandrel; and the transfer head is driven coaxially and synchronously with the mandrel.

REFERENCES:
patent: 3468148 (1969-09-01), Tsurumoto

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