Package making – Closing packages and filled receptacles – Separate closure applying
Patent
1977-03-28
1978-05-16
McGehee, Travis S.
Package making
Closing packages and filled receptacles
Separate closure applying
53317, B65B 728, B67B 106
Patent
active
040891534
ABSTRACT:
A capping machine turret has a number of circumferentially spaced screw-cap applying spindles with a cap engaging chuck at the lower end of each spindle. Each screw cap applying spindle of the capping machine is rotated by means which frictionally applies an accurately predetermined torque to the spindle and therefore to the cap engaging chuck at the lower end of the spindle. This is accomplished by providing a pair of pinions which are rotatably mounted on each spindle and are continuously rotated by drive means associated with the turret generally. Drive washers are provided at the outer radial faces of the two pinions and between the pinions and these drive washers have internal spline formations which interfit with external spline formations on the spindle.
Spring means is provided for applying an axial compressive force against the assembly comprising the two pinions and three drive washers whereby the spindle is rotated by the frictional force between the radial faces of the pinions and the several drive washers. This predetermined axial force determines the maximum torque which can be applied to the screw caps by the capping spindle.
REFERENCES:
patent: 3683598 (1972-08-01), Van Zijp
patent: 3964240 (1976-06-01), Eurard
A-T-O Inc.
McGehee Travis S.
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