Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Coacting shaping surfaces
Patent
1995-10-16
1998-07-14
Mackey, James P.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Coacting shaping surfaces
264316, 425397, 425398, B29C 5108, B29C 5304
Patent
active
057800740
ABSTRACT:
A method of shaping a layer of settable material such as honeycomb core (24) including placing the core on a flexible support (38); translating the flexible support (38) and core into an oven (28); heating the core to a desired forming temperature in the oven; translating the flexible support (38) and core (24) horizontally from the oven into a forming area (26); lowering a contoured upper die (32) onto the core (24); tensioning the flexible support (38); pressing the core between the tensioned flexible support and the upper die so that the core (24) is forced to conform to the shape of the die (32); cooling the core to set temperature; and raising the die (32) to remove the finished shaped core, is provided. Additionally, a shaping apparatus (22) located in a forming area (26) adjacent an oven (28), for shaping a settable material such as honeycomb core (24) is provided, including: an upper die (32); first and second tensioning assemblies (70), (72) each including a torque supply system; first and second guide assemblies (50), (52) for translating the tensioning assemblies into and out of the oven (28); at least one flexible support (38) wrapped around and between the tensioning assemblies (70), (72) upon which the core may be placed; a regulation system for equalizing tension about the core during pressing; and optional support rollers (166) for focusing the flexible support (38) against the upper die (32) during pressing. A tensioning assembly including a roller (76) and a torque supply system having an air motor (84), is provided. Alternatively, a tensioning assembly including a number of short rollers (92) each powered by a torque supply system having an air motor (108); and a like number of tensioning sub-assemblies (90) each having multiple flexible belts (96) attached thereto, is provided.
REFERENCES:
patent: 2385544 (1945-09-01), Salisbury
patent: 4885317 (1989-12-01), Thein et al.
patent: 5084226 (1992-01-01), Tarlton et al.
patent: 5119535 (1992-06-01), Gnagy et al.
patent: 5529480 (1996-06-01), Ross et al.
Blonigen Bradley J.
Ross William T.
Mackey James P.
The Boeing Company
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