Apparatus for constructing multi-piece cartons
AssigneeRiverwood International Corporation
InventorsAllen L. Olson, Kelly W. Ziegler, John E. Cragun
Life of this patent
Estimating the term…
Abstract
An apparatus for constructing multi-piece cartons, comprising a tray member supply hopper, a tray conveyor, a glue station, a web placement and compression station including a reciprocating placer, a preform conveyor, a forming station having at least three vertically aligned mandrels and a carton output conveyor. The apparatus process paperboard cartons for fresh produce and the like. The apparatus is operable in a cartoning mode and a preform mode wherein flat unerected carton preforms are output.
Claims19
An apparatus for constructing multi-piece cartons, comprising a tray hopper to hold and supply a plurality of flat, horizontally oriented first blank foldable tray members, said tray members being horizontally ejected in a horizontal plane from a bottom area of said tray hopper, a tray conveyor to convey tray members from said tray hopper, said tray conveyor comprising a revolving endless member having a rectilinear, forward travel path extending from a first end proximate said tray hopper to a second end and at least one engagement member having at least one tooth which engages said tray member, said apparatus further comprising means, disposed proximate said second end, to place and affix at least one second blank web member on said tray member, a forming station having at least two vertically aligned mandrels, and means to convey said tray members from said means to place and affix to said forming station.
A unitary, compact, adjustable apparatus for constructing unerected or erected multi-piece paperboard cartons consisting of a tray member and at least two web members, comprising:
- (a) a tray hopper containing a plurality of tray members;
- (b) a tray conveyor receiving a tray member from said tray hopper;
- (c) means, disposed proximate said tray conveyor, to deposit a predetermined glue pattern on the tray member;
- (d) a reciprocating placer/compressor receiving the tray member from said tray conveyor and placing and affixing at least two web members on the tray member to form a flat preform;
- (e) a preform conveyor, intersecting said tray conveyor at a ninety degree angle and receiving the preform from the placer/compressor;
- (f) a forming station disposed in-line with said preform conveyor comprising a fixed middle mandrel, a vertically movable, aligned lower mandrel which is mated with said middle mandrel in an operative mode, and a vertically movable, aligned upper mandrel which engages the preform and lowers it into said mated middle and lower mandrels in an operative mode;
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- (g) a carton conveyor disposed in-line with and below said preform conveyor, and receiving cartons from said forming station for output from the apparatus.
An apparatus for constructing multi-piece cartons, comprising a hopper to supply a first blank tray member, means to convey tray members from said tray hopper, means to deposit glue trails at predetermined locations on said tray member, a reciprocating placer to place and affix at least one second blank web member on said first blank, said placer comprising a frame, a web member magazine attached to said frame, a reciprocating arm assembly attached to said frame and disposed above said second end of said tray conveyor, and at least two vacuum actuated pick and release contacts coupled to said arm assembly, whereby said pick and release contacts grasp said web members from said web magazine and move said web members into position on a tray disposed on said means to convey tray members, place said web members on said tray, in contact with said glue trails, compress said web members for a predetermined glue curing time period to yield a substantially flat preform, and release said web members, said apparatus further comprising a forming station having at least two vertically aligned mandrels, and means to convey said blanks from said means to place and affix to said forming station.
An apparatus for constructing multi-piece cartons, comprising a hopper to supply a first blank tray member, a tray conveyor for conveying tray members from said tray hopper and having a rectilinear, forward travel path extending from a first end proximate said tray hopper to a second end, means to place and affix at least one second blank web member on said first blank to form substantially flat preforms comprising a tray member and at least one affixed web member, a forming station having at least two vertically aligned mandrels, and a preform conveyor with a rectilinear forward travel path disposed at a ninety degree angle with respect to said forward travel path of said tray conveyor for conveying said blanks from said means to place and affix to said forming station.
An apparatus for constructing multi-piece cartons, comprising a hopper to supply a first blank tray member, means to place and affix at least one second blank web member on said first blank to form substantially flat preforms comprising a tray member and at least one affixed web member, a forming station having at least two vertically aligned mandrels, and a preform conveyor for conveying said blanks from said means to place and affix to said forming station, said forming station being disposed along and intersecting said preform conveyor, and comprising first, second and third vertically aligned mandrels, means to support and drive said mandrels, a pair of parallel, spaced fall-away preform support bars disposed in-line with said preform conveyor, and a plurality of locking fingers disposed adjacent and laterally with respect to said second mandrel to lock said preform and yield a completed carton.
An apparatus for constructing multi-piece cartons, comprising a hopper to supply a first blank tray member, means to place and affix at least one second blank web member on said first blank to form substantially flat preforms comprising a tray member and at least one affixed web member, a forming station having at least two vertically aligned mandrels, a preform conveyor with a rectilinear forward travel path for conveying said blanks from said means to place and affix to said forming station, and a carton conveyor disposed below and in-line with respect to said preform conveyor, said carton conveyor comprising a revolving endless member having a forward travel path extending from a first end intersecting said forming station to a second end disposed beyond said forming station, and at least one flight which engages said carton, whereby said apparatus is operable in a cartoning mode and in a preform mode, in said cartoning mode said forming station is active, forms said cartons by removing said preforms from said preform conveyor and outputs said cartons onto said carton conveyor, and in said preform mode said forming station is inactive and said preforms travel to said second end on said preform conveyor for output.
Dependencies are inferred from the claim text.