Methods for manufacturing coil springs

Details Methods for manufacturing coil springs Methods for manufacturing coil springs

B - Operations, Transporting

21

F

B21F 3/02 (2006.01) B21C 47/18 (2006.01) F16F 1/04 (2006.01)

Patent

CA 2538985

The systems and methods include a feed mechanism supplying multi-strand wire (213) to a coil-spring winder (212). The coil-spring winder (212) receives wire (213) from a spool of wire (211) and forms that wire (213) into a coil spring (214). To feed the coil-spring winder (212), the systems include a wire holder that supplies the wire (213) to the coil-spring winder (212) along a feed direction. The wire holder is supported for rotation about an axis (219) that may be aligned with the feed direction. Thus, as the spool of wire (211) revolves around the central spool axis (216), the spool (211) also revolves around a second axis (219), which typically is orthogonal to the spool axis (216). In this way, it is understood that the coil-spring winder (212) can pull wire (213) off the spool (211) without it causing twisting that may unravel or snap the multi-strand wire (213).

La présente invention concerne des systèmes et des procédés qui comprennent un mécanisme d'alimentation alimentant une bobineuse de ressort hélicoïdal (212) en fil multibrins (213). La bobineuse de ressort hélicoïdal (212) reçoit un fil (213) en provenance d'une bobine de fil (211), qu'elle transforme en un ressort hélicoïdal (214). Pour alimenter la bobineuse de ressort hélicoïdal (212), le système comprend un support de fil qui distribue le fil (213) à la bobineuse de ressort hélicoïdal (212) dans une direction d'alimentation. Le support de fil est soutenu en rotation autour d'un axe (219) qui peut être aligné sur la direction d'alimentation. Par conséquent, au fur et à mesure que la bobine de fil (211) tourne autour de l'axe central (216) de la bobine, la bobine (211) tourne aussi autour d'un second axe (219), qui est généralement orthogonal par rapport à l'axe de la bobine (216). La bobineuse de ressort hélicoïdal (212) peut de cette manière dévider le fil (213) de la bobine (211) sans causer une torsion qui pourrait effilocher ou casser le fil multibrins (213).

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