Manufacturing container or tube from paper; or other manufacturi – Control means energized in response to activator stimulated... – Responsive to work material – the product or means engaging...
Patent
1982-05-06
1984-02-21
Heinz, A. J.
Manufacturing container or tube from paper; or other manufacturi
Control means energized in response to activator stimulated...
Responsive to work material, the product or means engaging...
493177, 493419, 493453, B31B 154
Patent
active
044327455
ABSTRACT:
Apparatus for folding the trailing edge of paperboard blanks conveyed along a straight-line path includes a rotatable shaft disposed below and transverse to the conveyor and having arms with heads at their ends which extend upward through openings between conveyor belts. The shaft is rotated to cause the heads to contact the trailing panels or flaps of the blanks and fold them onto the blank body. To rotate the shaft intermittently it is momentarily connected to a continuously rotating drive by a clutch-brake which permits substantially instantaneous engagement and disengagement. The precise position of each blank is determined by a signal generated by a photodetector, and the rotational orientation of the shaft is determined by optical detectors associated therewith. A signal from the photodetector indicating position of the blank is received by a controller which also has input of the conveyor speed and which responds by actuating the clutch-brake at the proper time.
REFERENCES:
patent: 3330185 (1967-07-01), Annett et al.
patent: 3901134 (1975-08-01), Reizenstein et al.
patent: 4119018 (1978-10-01), Nava
Heinz A. J.
Paxall Inc.
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