Abstract:
A machine for bringing the flexible upright walls of paperboard containers into a predetermined configuration, so that fitment rings may be applied to the upper ends of those containers, includes a pair of captivator chains having parallel inner passes and a main conveyor located generally between the two inner passes. The containers are released onto the main conveyor at equal intervals, whereupon opposed captivator blocks on the two chains fit snugly around the containers and cause them to assume the desired configuration. This enables fitment rings to be installed over the upper margins of the sidewalls or some other operation to be performed on the containers.
Abstract:
A machine is disclosed for erecting cases stored in upright, flattened positions in storage magazines. The machine includes means for extracting end member cases from the magazines, for dropping the extracted cases into drop chutes, for urging the cases in a generally horizontal direction out of the drop chutes, for opening the flattened cases by spreading the case sides apart, for tucking in lower case end flaps, for folding one case bottom panel in under the tucked end flaps, for applying adhesive to the bottom surface of the folded bottom panel, for folding another bottom panel in under the bottom panel having adhesive thereon, and for compressing the two bottom panels together.
Abstract:
Vertical carton erecting machine of the stationary diereciprocable plunger type, including an improved carton supply hopper. Feed arms are carried adjacent to the die to move to a blank hopper and directly pull a flat carton blank, presented by the hopper in proper registration for placement on the die, onto the top of the die in carton erecting position.
Abstract:
The invention relates to a machine for folding and adhesively bonding blanks for the production of folding boxes, comprising a transport system, which has at least one pulling means, which wraps around deflecting rollers and extends along a processing path, a drive, which is connected to at least one deflecting roller and drives said at least one deflecting roller, workpiece carriers, which are fastened to the at least one pulling means at distances from each other and are moved along the processing path by the at least one pulling means, at least one magazine for a stack of blanks, at least one means for removing individual blanks from the stack in the magazine, at least one means for feeding the removed blanks to the workpiece carriers along a segment of the processing path in a motion synchronized with the workpiece carriers, active means arranged on the workpiece carriers for retaining blanks on the workpiece carriers and/or active means arranged on the workpiece carriers for folding blanks that are arranged on the workpiece carriers, control means, which are connected to the active means for retaining and/or the active means for folding and are designed to control the retention and release of the blanks by the active means for retaining and/or the folding of the blanks by the active means for folding, and at least one means arranged on the processing path in a stationary manner for adhesively bonding blanks, and/or means arranged on the workpiece carriers for adhesively bonding blanks.
Abstract:
A pallet unloading apparatus for removing stacks from a pallet has a conveyor for conveying a pallet in front of a pusher mechanism and a stop member then stops the pallet. The pusher mechanism is activated to push the stacks one at a time off of the pallet. When a first set of stacks has been removed from the pallet the pusher mechanism is then retracted and the apparatus moves the pallet forward to where a second set of stacks is in front of the pusher mechanism and the pallet is then stopped by a second stop member. When the pallet is empty, the second stop member retracts and the empty pallet is passed beyond the pusher mechanism while a loaded pallet moves into position.
Abstract:
A box-erecting machine characterized by a squaring mechanism for squaring and delivering box blanks to a receiving station, said blanks being characterized by depending leading and trailing minor flaps, a driven reciprocating carriage supported for rectilinear travel including a trailing pusher assembly mounted on the carriage for sequentially engaging each squared box blank and for advancing the blank toward a glue applicator, a major flap folding and compression station, and minor flap folding assembly including pivotal fingers for forwardly infolding the trailing minor flap as it is engaged by the pusher and a rigid tongue mounted in the path of the blank for rearwardly folding the leading minor flap as the blanks are advanced from the box blank receiving station.
Abstract:
An improvement in an apparatus for setting up and closing the bottom of cartons or so called slit-boxes which are supplied as plainly collapsed carton tubes having sides and bottom and top flaps which are integral with the sides. The apparatus comprises a support (1) which carries a magazine (2) for carton blanks, a feeder unit (3) and a bottom flap closing means (4). The feeding unit (3) includes a suction catcher (11) adapted to catch and open a container blank and to move the said blank along a handling path while closing at least bottom thereof. The feeding unit carries an expelling means (27) having an expellor arm (28) which is moveable between a position inside the handling path and a position outside the handling path and which is mounted at a predetermined distance in front of the feeder unit (3) as considered in the feeding direction. The expellor arm (28) is actuated by a hydraulic or pneumatic cylinder (31) to move to a position inside the handling path when the suction catcher (11) starts to move along the handling path after having pulled a carton blank (6) out of the magazine (2) and to move the expellor arm (28) out of the handling path after the suction catcher with the expellor arm (28) and the set up carton has reached a predetermined end position and just before the suction catcher (11) starts to return to its initial position in contact with the foremost carton blank (6) of the magazine.
Abstract:
Preformed tray blanks, e.g., of an expanded foam thermoplastic material, are individually transported from a supply hopper into registration with a die cavity through which a mandrel forces the blank. In passing through the die, the blank is sequentially moved through sidewall-erecting, radiant heating, and corner tab folding stations by the extension stroke of the mandrel. A fluid power and control system moves the mandrel through these stations at desired different velocities to maximize the rate of sidewall erection, to optimize the rate of heat transfer to those surface areas of the blank to be welded together, and to minimize the open time between the heating and welding phases. The control system also optimizes the dwell time of the mandrel in a fourth station at which the heat plasticized, mutually contacting surfaces are pressed together to solidify or vulcanize, after which the mandrel is retracted, the formed tray being stripped therefrom by a means at the exit end of the die cavity. An electromechanical control circuit maintains a feed rate of individual blanks in phase with the extension and retraction cycle of the mandrel relative to the forming and welding die.
Abstract:
A packaging machine and more particularly a machine for setting up a container from a blank (16) of corrugated board is disclosed as including a uniquely arranged magazine (10) for a plurality of container blanks (16) of corrugated board and including a structure to directly set up the shape of the container in a controlled manner for enabling a product to be easily loaded and for subsequent processing by the packaging machine. The unique direct setup arrangement utilizes arcuately moving arms (24) with vacuum cups (26) thereon which attach themselves to a blank (16) in the magazine (10) and move through an arc of less than 90.degree. from a vertically inclined position to a generally horizontal position. The arms (24) and blank (16) are then moved horizontally so that the side edge portions of the major panel (18) of the blank (16), such as the bottom panel, are positioned under horizontal flap guides (74). The major panel (18) of the container is also positioned between upstanding lugs (28, 34) on a horizontal chain conveyor assembly (12) in order to orient the container flaps (20, 22) connected to the major panel (18) in perpendicular relation to the major panel (18). Thus, a partially formed container moves in a horizontal path with the chain conveyor assembly (12) for loading products into the partially formed container and for subsequently processing the container to form a package.