Method and apparatus for forming paper boxes and the like

Details Method and apparatus for forming paper boxes and the like Method and apparatus for forming paper boxes and the like

1977-04-12

1980-03-25

Culver, Horace M.

93 51R, B31B 146

Patent

active

041944410

ABSTRACT:
A box blank with receptacle and cover sections each with side and end-flaps has a hinge panel joining the sections. A vacuum pickup draws a flat blank from a stack to a feed carriage which delivers the glue coated blank to a former and a forming head having concave and convex interacting pressure plates which maintain doubled over end flaps of each section in concave configuration while the folded end sections are adhered to form a box tray. Former flap benders cooperate with the tray forming head to shape the tray. A second vacuum pickup clasps the formed tray at the hinge panel and draws it from the forming head into engagement with folding elements such that cover and receptacle sections are bent together along the hinge panel to form a closed box.
The machine implementing the process is cam and lever motivated with a gluer for forming the folded end flaps and holding the box partially closed after the tray is formed for loading articles into the box before it is closed. A feed carriage moves a blank from the supply stack past a gluer to the path of a movable forming head which progresses vertically to traverse a former with the blank. Both forming head and former have flap benders for forming the blank into a tray, including movable plates for stressing the flaps and for supporting the tray. A second vacuum pickup draws the formed tray from the former and engages it with crimpers and ramps for closing the box. A loading station is included in the machine.

REFERENCES:
patent: 1814043 (1931-07-01), Joslin
patent: 1835401 (1931-12-01), Joslin
patent: 2196440 (1940-04-01), Hoza
patent: 2232932 (1941-02-01), Straw et al.
patent: 2848926 (1958-08-01), Gschwind et al.
patent: 3065679 (1962-11-01), Clement
patent: 3125007 (1964-03-01), Jaroff et al.
patent: 3168018 (1965-02-01), Dunn
patent: 3370516 (1968-02-01), Peppler

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