Patent ID: 6540126
Filing Date: 2003-04-01
Classification: B21D

Abstract:
A clamping band manufacturing machine, comprising:a main machine part including: a band shaping stage for forming a clasp material into a U-shape, welding the U-shaped clasp on a band section made by cutting a long band-shaped material with a prescribed length, bending a mid portion of the band section in an arc by a guide rod, overlapping both end portions; a lever welding stage for welding a lever material and the overlapped portion of the band section and extending the lever material from the overlapped ends; an examination stage for measuring a length of an overlapped portion of the band section and the lever material; an arc shaping stage for bending the lever material in an arc by a fixed die and a shaping die; a circular shaping stage for expanding the bent portion of the band section so as to form the band section into a circular loop; and a conveying mechanism synchronously conveying the work piece including the band section to each of said sages, which are serially arranged, with machining action of each of said stages; and feeding mechanisms for feeding the band-shaped material, the clasp material and the lever material to said main machine part.