Machine for making ornamental chains, in particular of the type named rope chain

摘要

Machine for making ornamental chains, of the type named rope chain, provided with a unit 2 for forming the links 6 to link together and a unit for manipulating said rings. The forming unit 2 comprises a rod on which the various rings 6 are formed in such a way that their opening faces downward, and the ring manipulating unit comprises three pincers, of which: - a first bottom pincer 10 is envisaged for gripping the top link, already linked, of the chain being formed and is provided with alternating vertical movement to pick up said link 6 and transfer it to a suitable position for linking with the next link, and with independent step- step rotation movement around a vertical axis to assist said linking. - a second top pincer 8 is present for gripping, in the thickness direction, the link 6 to link and is provided with alternating vertical movement to pick up the link 6 to link from the underlying rod 4 of the forming unit 2 and to engage it in those of the chain already formed, with independent step-step rotation movement around a vertical axis 12 to assist said engagement, and with rotary movement around the axis of said link 6 already engaged, to effect said linking, and - a third top fixed pincer 13 is envisaged, acting on the ring 6 already engaged and cooperating in synchronism with said second pincer 8 for alternated gripping of said link during the linking phase. IMAGE