| 摘要 |
Apparatus for straightening an elongate material, such as a wire (2; 512) from a coiled stock (6) comprises a pair of counter rotating rotary members (12, 14; 508, 510) through which the wire is fed. The wire (2; 512) is fed through a succession of engagement members such as sleeves (114; 588, 600) which radially deflect the wire (2; 512). Consequently the wire follows a path which is co-axial with the rotary member (12, 14; 508, 510) as it enters and leaves the latter, but is deflected along its substantially helical path as it travels therethrough. Each engagement member is rotatably mounted on the rotary member so that the torsional forces exerted on the engagement members on the wire (2; 512) and the wear on the engagement members by the passage of wire therethrough are reduced. There is also provided a wire bending machine which incorporates such straightening apparatus. |
