发明名称 |
Machine for the manufacture of chains, in particular of the type known as rope chain in the goldsmithery industry |
摘要 |
A machine for the manufacture of chains of the "rope chain" type for the goldsmithery industry, in which each link is taken from a spiral of wire by means of one or more cuts tangential to the internal profile of the winding. The cuts can be simultaneous or consecutive. The cutting unit includes a pair of blades, the cutting plane of which is adjustable with respect to horizontal so that it can be perpendicular to the coil winding to be cut; it also oscillates between two cutting positions in order to obtain separation of the link with two consecutive cuts in correspondence to two intermittent, 180 DEG one-way rotations of the coil. For chain-linking, a calibrated passage with a decreasing section is provided, in which the take-up unit, after having united a link to those already joined, forces the chain to advance, producing closure of the links with partial overlapping of their contoured extremities.
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申请公布号 |
US4493183(A) |
申请公布日期 |
1985.01.15 |
申请号 |
US19820422057 |
申请日期 |
1982.09.23 |
申请人 |
ICM S.P.A. ITALIANA COSTRUZIONI METALMECCANICHE |
发明人 |
BUCEFARI, MASSIMO;SCORTECCI, GIUSEPPE |
分类号 |
B21L7/00;B21L11/00;(IPC1-7):B21L7/00 |
主分类号 |
B21L7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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