Roller for guiding and stretching bands and film webs

Details Roller for guiding and stretching bands and film webs Roller for guiding and stretching bands and film webs

1991-09-30

1993-12-28

Stodola, Daniel P.

Advancing material of indeterminate length

By orbitally traveling material-engaging surface

Including details of roll or mount

26 99, B65H 2000, D06C 306

Patent

active

052731979

ABSTRACT:
In a roller for guiding and stretching bands and/or film webs (21) for winding apparatus (FIG. 1), preferably for apparatus for the continuous vacuum vapor depositing or sputtering of plastic webs with a plurality of external drums (2) of identical configuration disposed side by side on the roller shaft (4) held in the manner of roller bearings for rotation on ball bearings (10), in which the external drums are held apart from one another without touching, and the film band or the film web (21) wraps partly around and at the same time lies with bias against portions of the cylindrical circumferential surface of the external drums, at least one profile bar (18) is held and guided longitudinally in a longitudinal groove (17) in the roller shaft (4), which cooperates with at least one ball-end pin (19) which is held in the drum mounting ring (8) associated with the external drum (2) and reaches radially downward into a recess (26) which is disposed on the profile bar (18), wherein a longitudinal displacement of the profile bar (18) turns the drum mounting rings (8) swivelingly mounted on the roller shaft (4), with respect to the longitudinal axis of the roller shaft (4).

REFERENCES:
patent: 479501 (1892-07-01), Goddard
patent: 3392431 (1968-07-01), Bisang
patent: 3848304 (1974-11-01), Lucas

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