Apparatus for making blind rivets

Details Apparatus for making blind rivets Apparatus for making blind rivets

1991-09-06

1993-08-24

Nguyen, Khanh P.

Plastic article or earthenware shaping or treating: apparatus

Distinct means to feed, support or manipulate preform stock...

Opposed registering coacting female molds

249 68, 264250, 425121, 425127, 4255556, 425588, 425441, 425444, B29C 4514, B29C 4552, B29C 4540

Patent

active

052383776

ABSTRACT:
Apparatus for molding a strip of blind rivets, with each of the rivets having a pin within a sleeve and with the pin having a pulling head and shank, including a strip advance rod mounted in the apparatus for movement between first and second positions, a set of pin mold cavities and a set of sleeve mold cavities, a first runner for feeding the pin mold cavities and including a band around the rod, a second runner overlying the first runner for feeding the sleeve mold cavities, opposing mold members defining the sets of cavities and a sprue for feeding molding material to the runners, with the rod and strip moving together when the mold members are out of engagement for advancing the molded parts, and with the rod moving through the strip when the mold members are in engagement for returning the rod to the first position.

REFERENCES:
patent: 3871611 (1975-03-01), Taketa
patent: 4131009 (1978-12-01), Hara et al.
patent: 4222304 (1980-05-01), Yoshida et al.
patent: 4419309 (1983-12-01), Ishihara
patent: 4555086 (1985-11-01), Kiyotomo

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