Collapsed, tubular carton erecting apparatus
AssigneeDouglas Machine Limited Liability Company
InventorIrvan L. Pazdernik
Life of this patent
Estimating the term…
Loading patent…
AssigneeDouglas Machine Limited Liability Company
InventorIrvan L. Pazdernik
Estimating the term…
An apparatus (10) for erecting collapsed, tubular cartons (12) is disclosed including a device (32) for removing the top carton (12) of a vertical stack of cartons (12) in a hopper (26) and moving it in a horizontal orientation to an operative position. In the operative position, the second side panel (16) of the collapsed carton (12) underlies at least the first end panel (18) which is in a linear arrangement with the first side panel (14). Suction cups (76) carried by a frame (74) are secured to the second side panel (16) in an attachment position and moved by a parallelogram linkage to an open position located vertically below and coinciding with the first side panel (14). In a first preferred form, the folded closure flaps (22-25) are held by a tape piece (116) applied by a taping machine (114) carried by the last tucking arm (106). In another preferred form, the folded closure flaps (22-25) are fan folded by rotating and sliding folding arms (140-143) of a device (120) so that tape pieces (116) or similar agents to hold the closure flaps (22-25) are not needed. An unload arm (84) is then pivoted about a first axis from a pickup position to a drop position and is simultaneously pivoted about a second axis from a first condition to a second condition to place the erected carton (12) in a chute (118) at an offset location and in a horizontal orientation. In the most preferred form, the unload arm (84) is pivoted about the second axis by a crank arm (98) secured to the unload arm (84) and a connector (100) having its opposite end secured to a stationary reference point when the unload arm (84) is pivoted about the first axis.
Device for erecting a collapsed carton, with the carton including first, second, third, and fourth side panels connected together about hinge connections, with the second and fourth panels being spaced and located intermediate the first and third side panels, with the carton including first and second major bottom closure flaps connected to the first and third side panels and first and second minor bottom closure flaps connected to the second and fourth side panels, comprising, in combination:
Device for fan folding the first and second major closure flaps and the first and second minor closure flaps of the bottom of a tubular carton, with the closure flaps having hinged connections to side panels of the tubular carton and extending generally linearly to the side panels, with the closure flaps each including first and second outside corners, comprising, in combination:
Method for fan folding the first and second major closure flaps and the first and second minor closure flaps of the bottom of a tubular carton, with the closure flaps having hinged connections to side panels of the tubular carton and extending generally linearly to the side panels, with the closure flaps each including first and second outside corners, comprising the steps of:
Dependencies are inferred from the claim text.