Apparatus for forming a row of coupling elements for slide...

B - Operations – Transporting – 29 – D

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B29D 5/02 (2006.01) B29D 5/04 (2006.01)

Patent

CA 1251308

ABSTRACT OF THE DISCLOSURE An apparatus, for forming a row of slide fastener coupling element, comprises a continuously rotatable die wheel having an annular peripheral groove for receiving a row of coupling element blanks in folded fashion, and a punching unit for forming coupling heads on the blanks in the groove. The punching unit includes a punch, an eccentric drive mechanism for imparting eccentric motion to the punch, and a linkage for regulating the eccentric motion of the punch, the drive mechanism having an outer ring connected at opposite ends to the punch and the linkage. Owing to the combination of the eccentric motion of the outer ring and the motion of the linkage, the punch is moved so as to follow the rotation of the die wheel while the coupling heads are shaped on each stroke of the punch.

503840

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