Vacuum forming apparatus

Details Vacuum forming apparatus Vacuum forming apparatus

1996-02-20

1999-01-05

Woo, Jay H.

Plastic article or earthenware shaping or treating: apparatus

Preform reshaping or resizing means: or vulcanizing means...

Including shaping means comprising fluid pressure contacting...

425 3, 425DIG48, 425DIG60, B29C 51010

Patent

active

058559310

ABSTRACT:
A vacuum forming apparatus to allow a tray containing a sheet, to be molded into a prescribed shape, to be moved manually in a very rapid manner in a rearward diagonal upward direction from a horizontally positioned vacuum table that is at one level into horizontal engagement with a heating element that is at a higher level, When in this latter position the tray is retained by a magnet until the sheet is heated to a moldable condition. The tray is then manually withdrawn from the magnet without harm to an operator's fingers while the tray is being moved rapidly in a forward diagonal downward direction away from the heating element into engagement with the vacuum tables In this position the moldable sheet is formed into the prescribed molded shape. To accomplish this very rapid diagonal movement of the tray parallel linkages are employed that are each pivotally connected to the rear central portion of the tray at one end and to a post at its other end.

REFERENCES:
patent: 3649152 (1972-03-01), Knack, Sr.
patent: 3852014 (1974-12-01), Kimball et al.
patent: 3962392 (1976-06-01), Conner, Jr.

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