Abstract: The invention relates to a device for the preferably continuous welding of plastic films by means of hot gas with at least one tubular body through which an electric current flows for the heating of the hot gas, wherein the device comprises at least one gas inlet opening (6, 106) and a plurality of gas outlet openings (12, 112) arranged next to each other, from which hot gas is blown onto the plastic film. It is provided that the at least one gas inlet opening (6, 106) is provided on a main tubular body (4, 104), which stands in gas communication with a plurality of branch tubular bodies (8, 108) at branching points (10, 110), wherein the branch tubular bodies (8, 108) each have at least one gas outlet opening (12, 112) and all the branch tubular bodies (8, 108) have electric current flowing through them.

Abstract: An apparatus for closing and sealing a preformed polypropylene bag after a bale has been inserted therein as the bale and bag traverse along a longitudinal line of travel. Left and right rotatable side flaps fold the left and right bag closure flaps onto the bale. A bottom rotatable fold plate partially folds the bag bottom closure flap and a top fold bar is extended and folds the top bag closure flap onto the bale. The bottom fold plate then folds the bag bottom closure flap onto the bale. The top and bottom bag closure flaps are sandwiched between the rotatable side flaps and the bottom fold plate and over a slack bar therebetween forming a slack portion. A heating assembly directs heat to the slack portion melting the polypropylene and a press plate is extended to the slack melted portion thereby fusing the bag closure flaps together.

Abstract: A system having an upstream module M for storing cardboard blanks, a central module C with a device for taking the blanks from the magazine, and a downstream packing and packaging module V having a station where the blanks are erected. The extractor arm is mounted on a carriage which is movable so as to move the blanks lengthwise and the arm is movable relative to the carriage by an actuating mechanism which enables the arm to articulate about an axis. The distance D between the exit edge of the magazine and the reference point of the station is fixed, and the carriage controls the movements of the blank extracted from the magazine in order to avert the risk of interference with the magazine and to position the blank in the station to enable it to be erected, and this for a whole range of forms of blanks.

Abstract: A flat blank carton is provided for packaging articles or products. The flat blank carton includes a base, a top, and a rear panel, hingedly connected to one another, and pairs of upper and lower side flaps hingedly attached to the top and base panels, respectively. The upper and lower side flaps include locking projections and corresponding locking recesses that are brought into mating, locking engagement as the top panel is folded over the base panel. After loading with products, the front end flaps of the cartons can be sealed to close the cartons.

Abstract: The device (1) is associated, in line, to an outlet of a packing machine and is designed to seal superposed flaps (Ls, Li) of packs (C), at longitudinal vertical sides (V) thereof. The device includes apparatus (2) for receiving and moving the packs (C) and includes two batteries (3, 4) of heat-welding rollers (30, 40), having a vertical axis, for acting on respective longitudinal vertical sides (V) in order to heat the flaps (Ls, Li) up to a temperature which is sufficient to cause joining by aggregation of the packing material. Cooling is provided downstream of the batteries (3, 4) for acting on the flaps (Ls, Li) in order to lower the temperature thereof and thus stabilize the joint.

Abstract: A substantially tubular end-loadable carton (200) comprising a top wall (212), an inwardly-extending structure (X2) foldably adjoining said top wall (212) stowable in a substantially flat-face position with an underside of said top wall (212), and a top end flap (X1) connected to said inwardly-extending structure is translated in a direction (F) and a flap deflector (310) is disposed to engage and deflect the end flap (X1a) downwardly and thereby cause the inwardly-extending structure (X2a) to pivot upwardly inside the carton (200) into substantially flat-face position with the underside of the top wall (212) of the carton (200).

Abstract: A device for sealing packages comprises a sealing bar (1, 2). It is the object of the present invention to provide a sealing bar which solves the problems of lacking evenness of the sealing bar due to manufacturing tolerances. Advantageously, the quality of the sealing seam shall be enhanced. This object is solved by a compressible, heat conducting material (5) provided on the sealing bar (1, 2).

Abstract: A method of folding a sheet of packing material, having an extraction opening, about a group of cigarettes; the method includes the steps of: bringing a first end wall of the group of cigarettes into contact with the flat sheet of packing material, so that the major transverse edges of the group of cigarettes are parallel to the short sides of the sheet of packing material, and the minor transverse edges of the group of cigarettes are parallel to the long sides of the sheet of packing material; folding the sheet of packing material into a U about the major transverse edges of the first end wall, so that the sheet of packing material covers both the major lateral walls of the group of cigarettes completely; folding the sheet of packing material onto a second end wall of the group of cigarettes; and folding the sheet of packing material onto the minor lateral walls of the group of cigarettes; the first end wall of the group of cigarettes is positioned asymmetrically with respect to the sheet of packing material

Abstract: A case sealer has a frame with a low friction conveyor upon which boxes are moved in series through three stages, each having an independent pair of spaced-apart, lateral conveyors that are linked together for inward and outward movement to accommodate the width of the box to be sealed. A first measuring stage measures the height, width and length of the box. A second flap folding stage has a floating head located over its lateral conveyors and is responsive to the height and width of the box and folds the box end and side flaps into a closed position. When a box enters the flap folding stage, the lateral conveyors in the measuring stage open to accept the next box, and based on the speed of the lateral conveyors and the measured length of the previous box, a gate allows the next box to enter the measuring stage as soon as the previous box has cleared the measuring stage.

Abstract: An apparatus for wrapping groups of rolls of products with a sheet of film comprises a station for packaging and moving, with a stepping motion, in a predetermined direction, a succession of groups of products wrapped in a sheet of film, having an open front side defined by two opposite flaps, and means for closing the open side comprising a unit consisting of: two pairs of mobile elements, arranged side by side in said direction, to allow the flaps of film of the two groups of products arranged one after another to be brought together and closed; first movement means for the unit, allowing synchronized movement of the two pairs of elements, respectively, in the same direction as the groups, for one group feed step, bringing together and closing the flaps, and a movement opposite to said direction over a distance equal to the distance previously traveled, simultaneously with a feed step of the groups to be packaged, so as to position the unit at two further and subsequent groups of products to be closed.

Abstract: By providing two endless loop belt drive assemblies forming a belt driven sealing section, a highly efficient and effective automatic, universally applicable, container closing system has been achieved which is capable of securely lockingly engaging both locking lug/receiving well containers and perimeter seal containers. In the present invention, the two cooperating endless loop belt drive systems are mounted in juxtaposed, spaced, cooperating relationship with each other and are positioned for simultaneously closing and securely engaging the entire locking elements formed on the flanges of one side of the container. In addition, the spaced distance between the two belt drive assemblies is adjustable, as well as the position of the spaced distance relative to a conveyor. In this way, all containers are to be closed by this system.

Abstract: In a unit by which groups of cigarettes are packed in rigid type packets, the single packet is fashioned from a flat diecut blank folded around the group. An assembly consisting of one blank and one group is directed along a predetermined path and conveyed ultimately into a folding station with the blank still presenting two lateral flaps to be bent over and flattened; the station comprises two folders each presenting a fixed shoe of helical geometry around which a belt is looped slidably and positioned to engage a respective lateral flap as the assembly advances along the relative folding path, the active branch of the loop running in a direction concurrent with that of the advancing assemblies.

Abstract: A soft pack for cigarettes comprises a, for example, carton-form wrapper made of paper or similar packaging material. Folding tabs, namely border strips (18 and 19) on the one hand, base tabs, namely longitudinal tabs (24 and 25) on the other hand, and also a band (or revenue stamp) (32) are connected to one another or to the pack by adhesive bonding, use being made of hot-melt adhesive which is applied in the correct position to a material web for producing blanks for the packs, is set and, once the folds or packs have been completed, is reactivated by heat. The relevant folding tabs or band are/is respectively connected to one another or to the pack by pressure.

Abstract: A device for folding vertical flaps of a container (1) moved along a line (100) for packaging products (3) into these containers (1) includes a (cam) member (11), guided along a cyclical trajectory (T) by support and operating means (20) cooperating with trajectory correcting means (6). The trajectory (T) includes a first part (T1), along which the (cam) member (11) moves close to container (1), upstream of said rear vertical flap (5) with respect to the container (1) movement direction (W), and a second part (T2), along which the rear vertical flap (5) is pushed. The second part (T2) is substantially parallel to the direction (W) and concordant therewith. The supporting and operating means (20) include a pulley (21) and a connecting rod (22), aimed at guiding the (cam) member (11) and a bar (13), connected thereto, along a circumference arc. The trajectory correcting means (6) include a rotating body (31), aimed at receiving slildingly the bar (13) in a seat (32) made therein.

Abstract: A method and machine for wrapping a product in a sheet of heat-seal wrapping material, whereby the product is wrapped in the sheet of wrapping material to form a product having an outer wrapping in turn having three distinct overlap portions, i.e. portions having at least two superimposed layers of the sheet of wrapping material; and the outer wrapping is stabilized, as the product is conveyed continuously inside a respective same pocket, by a seal formed at each of the three overlap portions.

Abstract: A unitary panel sorting and packing machine receives vinyl siding panels from an extruded production line. The machine includes a panel receiving section which includes lifting and flipper arms for selectively inverting panels for packing efficiency. From the panel receiving section, the panels are transferred to a panel accumulation section. The machine also includes a box folding section for folding corrugated paper box blanks along predetermined score lines. The box folding section is preferably parallel and adjacent to the panel receiving section and the panel accumulation section and includes retractable arms which selectively position the box in a ready position for packing panels therein. After the box is full, conveyor mechanisms carry the box from the box folding section through a box lid glue applying station and then into a box end folding and gluing station. This machine can substantially reduce repetitive stress caused injury to the operator.