Method and apparatus for measuring and controlling foam sheet bl

Details Method and apparatus for measuring and controlling foam sheet bl Method and apparatus for measuring and controlling foam sheet bl

1982-10-20

1984-03-20

Anderson, Philip E.

Plastic and nonmetallic article shaping or treating: processes

With measuring, testing, or inspecting

Controlling heat transfer with molding material

264321, 425143, 425817C, B29D 2700

Patent

active

044380542

ABSTRACT:
A method and an apparatus for measuring and controlling foam sheet blow-up in a thermoformer oven. Control of the oven operation is achieved through monitoring the measured blow-up of a material which being heated in the thermoformer oven in order to regulate the thickness of the plastic material prior to its conveyance into a molding or forming station.

REFERENCES:
patent: 3711584 (1973-01-01), Sagane et al.
patent: 3801244 (1974-04-01), Eisenberg
patent: 4213925 (1980-07-01), Kiyono et al.
patent: 4244897 (1981-01-01), Moon

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