Mold head device of spring forming machine
AssigneeShin Chuau HWA Co., Ltd.
InventorTsun-Te Liu
Life of this patent
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Abstract
A mold head device of a spring forming machine is disclosed. The mold head device includes a rotation mechanism controlling rotation of a rotation head and a linear motion mechanism controlling linear motion of a mold head. The mold head has a plurality of sector-shaped chunk blocks defining diametrically extending channels therebetween for accommodating a spring wire that makes springs. Each chunk block has circumferentially opposite rounded corners having different radii of curvature. The rotation head has a projection engaging and applying a bending force to the wire so as to bend the wire about one of corners of the chunk blocks thereby forming an arc bending of the wire having a radius of curvature corresponding to that of the corner.
Claims2
A mold head device of spring forming machine comprising:
- a rotation mechanism having a cylindrical body defining a first central bore, the cylindrical body being drivingly coupled to a torque/rotation source;
- a linear motion mechanism having a shaft axially and movably received in the first central bore of the cylindrical body, the shaft being drivingly coupled to a linear motion driving device;
- a rotation head fixed to the cylindrical body, the rotation head defining a second central bore and forming a projection;
- a mold head received in the second central bore of the rotation head and attached to the shaft of the linear motion mechanism, the mold head having a cylindrical outer end comprising a plurality of sector-shaped chunk blocks defining at least one diametrically extending channel adapted to accommodate a length of a spring wire that makes a spring therein, each chunk block having circumferential corners that are made rounded and having different radii of curvature.
Dependencies are inferred from the claim text.