A packaging machine of the invention includes a base folding-in arrangement comprising a first device carrying out a linear reciprocating motion and folding down one of the main base panels, and a second folding-in device which folds down the second main base panel partly overlying the first-named base panel.

The apparatus feeds flattened carton blanks from a magazine, opens and erects the cartons, and advances the erected cartons along a conveyor for subsequent filling. Vaccum operated grippers withdraw the end carton from the magazine. An upper flap depressor depresses the forwardmost upper flap forwardly and a retractable hold-down thereafter holds the flap on its depressed position. The upper flap depressor includes first and second members which have a lost-motion connection. Means is provided f...

Machine for opening cartons comprising a magazine for flattened cartons, means for opening and converting cartons to a parallelepipedal shape, means for transferring cartons, means for displacing the flaps with respect to the faces of the carton whereby presenting said cartons with the flaps closed at one end thereof, means acting transversely to the longitudinal axis of the carton in cooperation with said opening means, means for separating two opposite flaps of said end and whereby causing sai...

A method and device for bending the end tabs of blanks for producing rigid flip-top cigarette packets. The blanks are loaded on a conveyor and are fed continuously along a path with the end tabs slidably engaged in a helical slit, which is in part defined by facing helical surfaces of first and second helical guide elements. The blanks wind over an arc of 180.degree. for bending the end tabs in a U and enabling the bent end tabs to be fed between two pressure rollers of a stabilizing unit.

Flat folded four-panel case is set up in a vertical takedown plane. The case is pulled out of the plane and manipulated to cause the four panels to move relative to each other so that the case assumes a diamond shape. The case is then partially erected. Next, one of the panels is held fixed (with the others being free to move) and a bottom flap is folded inwardly. This transmits forces to the panels so that the diamond shape changes to a square shape and the case is fully erected.

A machine is provided for forming three-dimensional cardboard boxes starting from a blank folded flat. The machine has a supporting frame which includes a magazine containing many flat blanks for taking one blank at a time from the magazine. The machine is capable of opening the blank, closing the lower smaller flaps of the blank, closing the lower larger flaps, and ejecting a formed box. The lower smaller flaps are closed virtually simultaneously with the opening of the blank in such a manner s...

An apparatus and method for repeatedly presenting a single, flat, tubular corrugated case, with its leading closure flaps overfolded in open flap position for easy gripping, erection and placement in the case gripper of a case packer device includes the provision of a bottom feed magazine holding a stack of such flats and a plurality of lug chains for advancing each successive individual bottom-most flat through a gateway and along a path up to the operator station of the case packer. Upper fold...

An apparatus is disclosed for erecting folded cartons having top and bottom flaps. The apparatus comprises a carton track with a carton magazine disposed at one end thereof. First track movement means moves a folded carton on the track from the carton magazine to a first position. A top flap folder folds the top flaps of the carton to be substantially parallel to the sides of the carton. A second track movement means intermittently moves the cartons from the first station to the second end of th...

A gathering and pressing device for a folded box gluing machine has two machine-width, circulating conveyor belts which are connected to a drive and whose conveying runs are disposed horizontally, one above the other and running parallel to each another. An upper conveying run of the lower conveyor belt being mounted such it can be moved vertically with respect to the lower conveying run of the upper conveyor belt in order to press the folded blanks. Both the lower conveyor belt and the upper co...

A method of forming a box having a plurality of corner gussets includes the steps of providing a generally planar box blank and a box forming device including a gusset formation section having a kicker plate, a forming blade and an adhesive securement device. The box blank is fed into the box forming device, the kicker plate deflects each of the gusset corner formation wall sections upwards, the upper portion thereof is bent towards a side wall via the forming blade and the glue flap section is ...