Apparatus for folding a trailing panel on carton blanks

Details Apparatus for folding a trailing panel on carton blanks Apparatus for folding a trailing panel on carton blanks

1990-10-15

1992-10-06

Terrell, William E.

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...

493 23, 493177, B31B 352, B31B 354

Patent

active

051527340

ABSTRACT:
Apparatus for a paper box folding machine for folding the trailing panels of carton blanks about fold lines as the blanks travel individually and successively along a paper line. A servomotor running continuously at a relatively constant nominal angular velocity drives the input shaft to an indexer that controls, for each position of its input shaft, the angular position of its output shaft. The indexer converts continuous input from the servomotor to discontinuous motion of its output shaft. The output shaft lies below and transverse to a paper line. Radially extending fingers mounted on the output shaft are positioned below a trailing panel as the carton blank passes. The indexing means output shaft and fingers rotate rapidly so the fingers engage and fold the trailing panel and then dwell to allow the blank to exit the apparatus. Then the shaft and fingers move below the paper line to allow another blank to enter and rotate to engage a next blank in sequence. A specific embodiment includes two folding stations and the control system for operating these stations independently.

REFERENCES:
patent: 3405611 (1968-10-01), Millich
patent: 4432745 (1984-02-01), Eldridge
patent: 4539002 (1985-09-01), Zak
patent: 4629445 (1986-12-01), Toriyama
patent: 4715846 (1987-12-01), Zak
patent: 4747813 (1988-05-01), Genoud et al.
patent: 5021041 (1991-06-01), Pigeau et al.

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