Lifting apparatus for an injection mold

Details Lifting apparatus for an injection mold Lifting apparatus for an injection mold

1983-10-20

1985-08-27

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Mold opening and closing means and segmented female mold

425192R, B29F 100, B29C 300

Patent

active

045375704

ABSTRACT:
An apparatus for lifting a mold top upwardly away from a mold bottom includes a support for the mold bottom, a drive for moving the support horizontally, a frame, and a drive for moving the frame vertically. The frame has two gripping arrangements, movement of the support when the frame is in a lowered position causing the mold top to move to a position between the gripping arrangements, the gripping arrangements engaging vertical side surfaces on the mold top. Subsequent upward movement of the frame lifts the mold top due to engagement of the gripping arrangements with lips provided above the side surfaces. The gripping arrangements each include a roller support member pivotally supported on the frame and two rollers supported on each roller support member for rotation about vertical axes, the rollers rolling on the mold top side surfaces.

REFERENCES:
patent: 2093658 (1937-09-01), Hildenbrand
patent: 2127038 (1938-08-01), Lehew
patent: 2173709 (1939-09-01), Campbell
patent: 2327227 (1943-08-01), Tucker
patent: 2367991 (1945-01-01), Bailey
patent: 2398129 (1946-04-01), Bailey
patent: 2613979 (1952-10-01), Stillabower
patent: 3624672 (1971-11-01), Spivy
patent: 4111623 (1978-09-01), Black

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