Disk producing apparatus for manufacturing a photo film cassette

Details Disk producing apparatus for manufacturing a photo film cassette Disk producing apparatus for manufacturing a photo film cassette

1997-08-05

1999-08-31

Ryan, Patrick

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Serially arranged with preform reshaping means

264522, 264548, 264553, 425384, 4253871, 425388, 425397, 4254031, 425DIG108, B29C 5110, B29C 5126

Patent

active

059451378

ABSTRACT:
In manufacturing a photo film cassette, a disk producing apparatus includes a web supplier which conveys the web from a web roll to the web conveyor. The web conveyor includes two chains which convey the web in an intermittent fashion, and which include pointed portions which serially penetrate an edge portion of the web. A heater disposed upstream from the web conveyor heats the edges of the web. At the heating/forming unit, a heating plate is lowered toward the web at the same time as the female mold is raised toward the web, and the web is squeezed between them before the heating and vacuum/air pressure forming takes. Clampers/coolers disposed upstream and downstream from the heating plate and female mold squeeze the web in fixed fashion to prevent wrinkles on the web. A web/sheet cutter device includes an upper punch above the web and a lower die under the web, which squeeze the web, and cut the web into a sheet having a plurality of disk-like portions. The web is then wound by the web winder and reused later. The sheet cut from the web is separated from the web by a knockout device incorporated in the upper punch, dropped down through the lower die, and stacked on a sheet stacking container disposed on a movable bottom plate.

REFERENCES:
patent: 4165357 (1979-08-01), Vetter
patent: 4196164 (1980-04-01), Ward
patent: 4832275 (1989-05-01), Robertson
patent: 4834306 (1989-05-01), Robertson et al.
patent: 4932856 (1990-06-01), Merklinghaus et al.
patent: 5211348 (1993-05-01), Enomoto
patent: 5271577 (1993-12-01), Takahashi et al.
patent: 5407146 (1995-04-01), Takahashi et al.
patent: 5437828 (1995-08-01), Shimizu et al.

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