Abstract: Shown and described is a device for producing packaging, in particular for processing package sleeves, comprising: a mandrel wheel with a mandrel wheel shaft with a central axis, a plurality of mandrels fastened to the mandrel wheel shaft, wherein the mandrels form at least one mandrel group, whose mandrels are arranged in a plane perpendicular to the central axis of the mandrel wheel shaft, at least one first processing station which is arranged on the mandrel wheel and comprises a drive, and a mandrel wheel drive to drive the mandrel wheel shaft. In order to facilitate a particular flexible mode of driving the device, it is proposed that the mandrel wheel drive is mechanically uncouple from the drive the at least one processing station.

Abstract: The invention relates to a device for transporting objects, in particular packaging means, said device comprising a continuous conveying section (3) and a plurality of conveying assemblies (40) that circulate on the conveying section (3). Each conveying assembly (40) comprises a first conveying element (4) and a second conveying element (5) and each of said conveying elements (4, 5) can be driven individually and independently of one another. The conveying elements (4, 5) are designed to jointly transport one individual object (2).

Abstract: A heated forced-air nozzle may be used in a container-forming machine to heat portions of an insulative container during a container-forming process. The heated forced-air nozzle is formed to include a heated-air passageway which is in fluid communication with a source of heated forced air. The heated forced-air nozzle is formed to include a series of circumferentially spaced-apart passageways in which heated forced air is communicated through from the heated-air passageway.

Abstract: Apparatus for making a pack tray includes a body with a strip of side walls, the body including an outer envelope lined on the inside with an added sealed plastic film. The apparatus includes at least one station provided with elements for applying glue on a portion at least of the inner surface of the side wall strip of the outer envelope, also called gluing area, before placing a plastic film. The gluing pads include at least one block of a porous material that can, one the one hand, be filled with glue by loading members through a diffusion phenomenon, and that can deposit glue by contact optionally combined with a compression force on the gluing area. The pad is mounted on a bearing structure via members for handling it between expanded positions in which the pad contacts the gluing area for applying glue thereon and a folded position in which the gluing pad is remote from the outer envelope of the pack tray.

Abstract: An apparatus and method for forming a hem on a 5th panel of a liquid carton blank comprising a skiving section, a stepped creaser section, a burner section, a vacuum hemmer section, and a sealer section. Carton blanks are fed into the skiver section and exit from the sealer section at a high rate of speed. The final folding step in the process is performed by a vacuum hemmer which comprises a belt with holes for pulling a vacuum to securely hold the carton blank during the second and final folding of the skived portion of the 5th panel.

Abstract: An arrangement for manufacturing a paper can includes processing stations arranged one behind the other along two star-shaped wheels. Packaging material from supply stores is fed to each star-shaped wheel. The two star-shaped wheels and the processing stations arranged thereto are disposed on the same machine frame. The packaging material for both star-shaped wheels are fed from a joint material supply station. Thereby, a compact construction and reduced operational procedure are achieved.

Abstract: The disclosure relates to a packaging container for long-term cold storage of liquid foods for retaining superior flavor and aroma properties in the packed product, and produced from a packaging laminate including a core layer of paper or paper-board, an inside aroma barrier layer of PET and a gas barrier layer, by fold formation and sealing of a planar packaging blank so that all contact surfaces vis-a-vis the packed product consist of the PET layer. The disclosure also relates to a method of fold forming and sealing the packaging laminate into a packaging container according to the invention. Good shelf-life after cold storage for at least six weeks at 8° C., or at least 10 weeks at 4° C. will be attained using the packaging container according to the invention.

Abstract: A collapsible-box gluing machine for the production of collapsible boxes from blanks has a folding station for folding blanks, a subsequently arranged transfer station and a collecting and compression device, wherein the flat-lying folded collapsible boxes are pressed for the bonding of the adhesive. The transfer station has at least one pair of conveyor belts as a conveying device, which consists of a lower belt and an upper belt. In order to transfer the blanks with precisely positioned side flaps to the collecting and compression device, the transfer station has a variable ratio transmission to drive the upper conveyor belts at a higher speed than the lower conveyor belts.

Abstract: This invention relates to a method of manufacturing a carton from a PET coated material having an initially separate base and side wall sections which are adhered together by melting the PET coating when the respective sections are suitably disposed with respect to one another and in contact. Subsequent application of pressure to different areas of one or other of the base and/or side wall sections ensures a secure bond therebetween. The invention lies in the application of heat to the material and/or coating such that only sections of board which are to be bonded together receive sufficient heat to cause melting of the PET coating, the remaining surfaces not being subjected to heat or only to an amount of heat which can be withstood by the PET coating without compromise of the fluid resistant properties of the PET coating. A hot air blast acutely angled to the coating ensures the correct application of heat in the desired areas. Heat-splash and other problems caused by over heating are thus avoided.

Abstract: A container comprises a sleeve and two end walls. The sleeve is made of a tube having a plurality of paper layers. The end walls are inserted into the sleeve and are bonded in a sealed way thereto. According to the present invention, each of the end walls has a rim which projects outwards, around which rim the tube is bent and bonded by means of heat sealing. A stable, sealed bonding is thus obtained, whereby the application of different materials for the end walls is possible.

Abstract: A heating device for heat-sealing bottom portions of containers has a hot air nozzle 62. The nozzle 62 is positionable as opposed to a bottom forming end portion 14 of a tubular blank 11 of square cross section as fitted around an intermittently drivable mandrel 52 for heating a region of the blank end portion. The nozzle 62 is movable toward or away from the end portion 14 on the axis of the blank 11. The nozzle 62 has orifices 101, 102, 131, 132, 133 directed toward a plurality of parts within the region when the nozzle is positioned close to the end portion. Among the orifices 101, 102, 131, 132, 133 of the nozzle 62, those 101, 131 directed toward the part of the region remote from an extremity of the blank when the nozzle is so positioned have a greater open area ratio than those 102, 133 directed toward the part of the region proximate to the blank extremity when the nozzle is so positioned.

Abstract: In a cup sealing system including a cup former and at least one burner for sealing a cup bottom seam where a cup side wall blank is mated with a bottom disk, with one portion of the side wall extending beyond the bottom disk, an improvement wherein at least one burner includes a burner head with a plurality of circumferentially arranged flame nozzles and a pilot flame aperture, the pilot flame aperture adapted to be located axially adjacent the one portion of the cup side wall; a flame ignitor/sensor positioned adjacent the flame aperture; and a combustion chamber which extends from a forward edge of the burner at the flame nozzles to a location axially beyond the container side wall to thereby achieve uniform heating of the extended portion of the cup side wall. The burner head also includes a pair of relatively movable sleeves adapted to create an annular pilot flame ring gap on start-up.

Abstract: A machine for making paper cups wherein each cup includes a side wall blank and a bottom wall blank, the machine including a frame and a vertical shaft mounted on the frame with a turret rotatably mounted on the shaft, a number of work stations mounted on the frame in an equally spaced relation around the turret with a number of tapered mandrels mounted on the turret in alignment with each of the work stations for forming the cup, the turret being intermittently rotated to move the mandrels sequentially into alignment with each of the work stations and a tubular assembly mounted for axial movement in each of the mandrels for initially releasing the cup from the mandrel.

Abstract: An inner seal portion (30a) of an open edge portion (1a, 1b) of a paper container (1) is aligned face-to-face with an inner peripheral heating portion of a seal-heating apparatus. An outer seal portion (30b) of the open edge portion is aligned face-to-face with an outer peripheral heating portion (4, 5, 6, 7, 13, 14, 15, 16) of the seal-heating apparatus. At least the inner peripheral heating portion (8, 17) is oscillated about an axial line thereof so as to vary the hitting position of the inner seal portion against which hot air blown from the hot air blowing holes (8a) of the inner peripheral heating portion (8) hits. Thus, the seal portion (30) of the paper container (1) can be equally and properly heated.

Abstract: A machine for making cups of thermoplastic coated paper, the machine including a frame or housing having a turret rotatably mounted on the frame, a number of work stations mounted on the frame in an equally spaced relation around the turret, a number of mandrels corresponding to the number of work stations mounted on the turret and a curling die mounted on the turret in radial alignment with each of the mandrels. The turret being rotated intermittently to align the mandrels sequentially with the work stations, the work stations being movable radially inwardly into a working relation with each mandrel, the mandrels being moved radially inwardly simultaneously with the work stations to form a tucked curl on the top edge of the cup.

Abstract: A selection and setting apparatus in box or carton blank erecting machines which enables changing of the blank format in the machine. The apparatus includes format selectors coacting with at least two setting wheels. The setting wheels each include at least two pins which are of different lengths enabling settings for different formats. The free ends of these pins contact coacting stops arranged on the erecting tool or carton blank magazine in the machine which are movably settable to the blank size in question.

Abstract: A liquid tight rectangular paperboard container (10) is provided with a separate opening tab (17) secured to the top panel (15) thereof which enables the package to be opened to provide a fully open top. In particular, an elongate plastic window (18c) is formed along the front fold line (15a) connecting the top and front panels (15 and 11) of the package, and has ends (18d, 18e) connected to spaced apart arcuate shaped perforated lines (18a, 18b) extending to the rear corners of the top panel. In the construction of the package, the opening tab (17) is first ultrasonically welded to the outside surface of the package blank, and then the window section (18c) is pressed against and welded to the inside surface of the tab. A slit (40) which is formed in the window enables any air trapped between the window and the tab to escape during the welding operation.

Abstract: A gable-top carton has a pair of panels (4, 6) which form sloping walls and have marginal portions (4m, 6m). Another pair of panels (3m, 5m), are tucked beneath the sloping walls and have marginal portions (3m, 5m). The marginal portions (3m-6m) are heat sealed together to form a ridge-shaped seal. One panel (5) is the pouring spout panel and this is revealed when wings (9, 10), on the sealed carton are folded back. The pouring spout panel (5) is secured by a bond (34) made in a central folded corner (26), a bond (35, 36) between outer corners of the wings (9, 10), and a bond between confronting surfaces of the marginal portions 4m, 6 m). Areas on the marginal portions (4m, 6 m) are not directly heated to facilitate opening of the pouring spout whilst providing an hermetic seal.

Abstract: Packaging apparatus, using an upper film (6) pre-heated before contact with a lower film (9) on which products (not shown) are placed, has at least the central region heated by radiant heaters (7) and the marginal regions heated by hot air nozzles (10) at least in the region immediately preceding contact (8) between the upper and lower films.

Abstract: A method and apparatus for the manufacture of folded paper boxes with a hemmed seal. One of two edges to be overlapped is skived and folded into a hem. After the edges are locally heated, blanks move individually and successfully along a conveyor for folding and sealing. Just before sealing, the hemmed edge passes between a hem holder and the conveyor to maintain the hemmed edge. The hem holder is heated to prevent the edges from cooling. In one embodiment hot air directed onto the hem from the hem holder forms an air cushion between the hem and the hem holder thereby to minimize any contact between the hem holder and the blank.

Abstract: To prevent an end of a filled container, upon heating by a hot air for subsequent welding of edges thereof, from coming into contact and sticking to a retainer, a centering gas such as, for example, air is supplied from an external source to the container end. Edges of the filling opening of the container are heated by a hot gas for a subsequent closing of the same through a nozzle introducible into the filling opening of the container end. A centering fluid is directed at the end of the container with a component of flow of the centering in an axial direction of the container to provide for a contact-free centering of the container end.

Abstract: An apparatus for producing container jackets from blanks comprises a winding core around which a blank is wound in a manner forming an overlapped area. A pressing element is arranged to engage and press the overlapped area. An actuating mechanism urges the pressing element against the overlapped area to apply a pattern of radial pressing forces along the length of the overlapped area. The actuating mechanism is able to longitudinally shift the pressing force pattern along the overlapped area to adapt the apparatus to the pressing of different types of jackets, such as jackets of different lengths.

Abstract: A method of heat activating the interior surfaces of the top closure, fin forming panels of a paperboard carton of the type shown in U.S. Pat. No. 4,732,275 to thereby render their PE coating tacky prior to folding the panels to form the carton top closure. The geometry of the two fin forming panels is such that their interior surfaces require a U-shaped heating pattern, as opposed to heating their entire areas. This U pattern is achieved by a specific hot air jet arrangement on an otherwise conventional nozzle block and by moving the nozzle towards and away from the carton as the carton moves past the nozzle block. The method also includes heating by a second nozzle block, to increase the rate of production of closed cartons. The fin forming panels of the cartons may also be preheated.

Abstract: This relates to a carton or cup having a conventional type of gable end which includes sealing flaps which are heat sealed or bonded to one another. The cup is particularly adapted to be closed by hand wherein control over the sealing flap positions is not possible as in the case of machine closed cups. Accordingly, the intermediate folded sealing flaps are so configurated wherein the folded ends thereof will be spaced so as to define therebetween a leak path. One of the front and rear sealing flaps will be provided with a bead of hot melt material which will be aligned with the leak path and when the sealing flaps are heat bonded together, the hot melt material will melt and fill the leak path.

Abstract: A method and apparatus are disclosed for skiving and hemming one or more edges of a paperboard web or blank to improve the sealing qualities of a container made from the paperboard. The paperboard is skived twice generally parallel to its edge, once to define an oblique surface and once to make a flat skived surface. The latter is folded over the former and heat-sealed to a heat sealable material adjacent the skived region, defining a wedge-shaped edge portion. The folded over part is preferably ironed to produce a substantially flat sheet, and the wedge-shaped edge is preferably reshaped at some point in the process to make the entire folded over surface substantially flush with the unskived surface to which it is sealed. The flat skived surface is preferably made by a milling procedure in which the milling teeth strike the material while moving in a direction opposite to that of the motion of the material.

Abstract: Sleeve fabricating apparatus for fabricating cylindrical sleeves from rectangular blanks of a heat-shrinkable thermoplastic material and for transferring the sleeves, in succession, to frustoconical mandrels of a cup-forming machine. The sleeve-fabricating apparatus has a plurality of cylindrical mandrels that are rotatably affixed to a rotary turret. The sleeves are fabricated from rectangular blanks that are cut, in succession, from a web of indefinite length as the web is being unwound from a coil at an unwind stand. Each blank is longer than the circumference of the cylindrical mandrel to which it is applied, leaving ends of the blank which overlap, and the overlapped ends are joined to one another by heat-sealing. Cups are formed by the cup-forming machine, each cup being formed from one of such sleeves and a disc. The sleeve fabricating apparatus also includes a disc forming mechanism for forming discs and applying the discs, in succession, to the cylindrical mandrels.

Abstract: In the erection of rectangular tray-type cartons from blanks of foldable sheet material, corner tabs which are to be uppermost in the erected carton are first folded up from the plane of the blank, which is then passed through a die by a punch to form the side wall. On completion of the stroke of the punch, the pair of opposed elongate panels which carry the uppermost tabs are folded outwardly by folding bars carried by the punch. The partially erected carton is then transferred to a continuously moving conveyor and the other pair of elongate panels are folded outwardly by oscillating fingers and plough bars. The upstanding tabs are then heated by travelling hot air jets and pressed down by pressure rollers to seal them to the other tabs and complete the horizontal peripheral flange which extends continuously around the carton.

Abstract: A rectangular tray-type carton formed from a blank of plastics-coated board has a peripheral flange for attachment of a closure lid. The flange is formed after the erection of the carton side wall in a punch and die arrangement, by folding down elongate panels carried along the free edges of the side wall and by subsequently joining the panels together at their ends by means of overlapping tabs which are heat-sealed together. In order to avoid damage to the tabs during formation of the side wall the uppermost tabs are folded out of the plane of the blank before it enters the punch and die arrangement.

Abstract: A package blank is made from a single sheet having at least surface layers of heat-sealable material. The blank sheet comprises first and second rectangular panels foldably formed on opposite sides of a backstrip. The first and second panels have first and second pairs of foldable side flaps, respectively, extending from their opposite sides, and the backstrip has a pair of foldable back flaps extending from its opposite ends. The first side flap pair and the back flap pair have sloping edges located adjacent each other for forming at least partly overlapping seams when the blank is folded up into a generally boxlike, open-front package. The overlapping seams serve to prevent the intrusion into the package of heated air used for fusing the second side flap pair onto the first side flap pair and the back flap pair.

Abstract: In a method of sealing separate flat lids (16) on to a series of generally rectangular tray-like containers (11), particularly containers which are coated with a polyester such as polyethylene terephthalate for heat resistance, the containers are moved continuously along a line while a lid (16) is positioned with its margin in contact with a peripheral flange (26) on each container, marginal side portions (25) of the lid and/or the side portions of the container flange are bent, e.g. by profiled strips (23, 24) acting as ploughs, to form a V-shaped recess between them, hot air is directed into the recess, e.g. from elongated nozzles (31, 32), to activate adhesive within the recess and to heat the side portions (25, 26), after which the side portions are pressed into contact to seal them together, e.g. by profiled strips (33, 34) and pressure rollers (35, 36). The movement of the containers (11) is thereafter changed, e.g. by turning the line of movement through 90.degree.

Abstract: In a machine for making two-piece flat bottom paper cups, having a mandrel on which the cup is formed, the portions of the two blanks that are to form the bottom seam are heated by a device comprising a stationary air duct with which the mandrel can be coaxially aligned. Air flowing forwardly in the duct from an inlet at its rear is heated by an electric element therein. On the front of the duct a nozzle is mounted to slide between a forward operative position and a rearward inoperative one. Cooperating throttle elements on the nozzle and the duct restrict flow to radial outlets in the nozzle when it is in operative position, ensuring steady air flow through the duct. An annular heat shield around the nozzle enables it to effect combined radiant and hot air heating. All heaters are arranged for retraction if the machine stops for longer than a normal dwell period.

Abstract: In the forming of cartons, a water-based adhesive, e.g. an aqueous-dispersed polyvinylacetate, is applied as an atomized spray by guns to selected parts of a carton blank of uncoated board and partially dried by hot gas (air) jets, and the carton is erected by forcing the carton blank by a punch through a forming die so that the selected parts are pressed briefly against cooperating parts of the carton to secure them together, by means of projections on the punch and pressure members forming part of the die. The atomized spraying followed by hot air drying of the adhesive enables adhesion to be effected by very brief pressure, and the method can thus be used for high speed production of cartons of uncoated board.

Abstract: Apparatus for heating a cardboard blank (2) coated with a synthetic material include an inhibitor (21, 22) which inhibits heat transferred from the synthetic coating to the cardboard blank from raising the temperature of predetermined portions of the cardboard blank beyond a selected value.

Abstract: A method and apparatus are provided for forming two-piece drinking cups and containers from conventionally shaped arcuate sidewall blank and bottom blanks of filled polypropylene sheet material or polypropylene-polyethylene copolymer sheet material with approximately 40% talc or calcium carbonate as a filler. The arcuate blanks for the sidewall and the bottom blanks are run through relatively standard two-piece container or cup making machinery utilizing patterned air jet heating means to heat areas of the filled plastic sheet material such that the sidewall and bottom curl seams can be heat sealed on the forming mandrels of the machinery and the top curl can be placed in the container by heating and substantially conventional forming dies. The seaming structures so produced are extremely water tight and of high strength characteristics.

Abstract: A method and apparatus are provided whereby a generally tubular container is formed on a mandrel with an end member being sealed to the container sidewall to form an open-topped container. The open-topped container is subsequently conveyed through one or more finishing stations for appropriate finishing of the container's open end in order to ready the container for filling and acceptance of a closure. As the open ended container is conveyed incrementally to and received at one or more finishing stations, the bottom of the container is gripped while appropriate modifications are made to the top burner.

Abstract: A method and apparatus are provided whereby a generally tubular container is formed on a mandrel with an end member being sealed to the container sidewall to form an open-topped container. The open-topped container is subsequently conveyed through one or more finishing stations for appropriate finishing of the container's open end in order to ready the container for filling and acceptance of a closure. As the open ended container is conveyed incrementally to and received at one or more finishing stations, the bottom of the container is gripped while appropriate modifications are made to the top burner.