Centering device for plastic web

Details Centering device for plastic web Centering device for plastic web

1988-09-15

1989-05-02

Hoag, Willard

Plastic article or earthenware shaping or treating: apparatus

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

Including product handling means

72361, 100215, 198345, 269 73, 271223, 271253, 425472, B30B 1530, B65H 910

Patent

active

048264210

ABSTRACT:
A device for centering plastic webs automatically fed thereon one by one so as to feed it to a pair of cramp chains to be correctly gripped thereby at the opposite side edges. This comprises a bed consisting of a central frame and longitidinal as well as transverse arms respectively extended in opposite directions from the central frame for supporting the web of varied size. A plurality of pairs of centering members, each having an upwardly projected pin, are oppositely arranged and adapted to move toward and apart with each other so as to abut on the longitudinal and transverse side edges of web on the table with said pin for centering. It is preferable and sufficient to move said centering members by means of a belt and pulleys for treating a light web.

REFERENCES:
patent: 4579321 (1986-04-01), Kawano
patent: 4775141 (1988-10-01), Trenzen

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