Automatic tightening method and apparatus

Details Automatic tightening method and apparatus Automatic tightening method and apparatus

1985-04-17

1986-09-30

Sipos, John

Package making

Methods

Closing package or filled receptacle

533315, 53317, B67B 320

Patent

active

046140778

ABSTRACT:
An automatic tightening method comprises the steps of transferring a torque, generated in a driving section for a screw cap through a power transmission joint section to a container, thereby screw-tightening the screw cap in a tightening apparatus for screw-tightening the screw cap by a rotational torque from the driving section, detecting a tightening torque applied to the container, adjusting the driving section or the power transmission joint section when the tightening torque reaches a predetermined tightening torque, and holding the predetermined tightening torque for a predetermined period of time, thereby obtaining the predetermined tightening torque irrespective of the transmitted rotation torque. Also, an apparatus for carrying out the method is disclosed herein.

REFERENCES:
patent: 3255568 (1966-06-01), Martin et al.
patent: 3491516 (1970-01-01), Bergeron
patent: 3913301 (1975-10-01), Keller et al.
patent: 4016938 (1977-04-01), Rice
patent: 4083270 (1978-04-01), Tomkinson
patent: 4273198 (1981-06-01), Doniwa

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