Abstract: The invention concerns the equipment for forming of paper containers starting from a continuous wet paper belt. It comprises a mobile semi-mold and a fixed semi-mold defining an impression corresponding to the container to be produced. Around the mobile semi-mold (15) are provided concentrically an upper cutting blade (18), an upper pleating/crimping ring (19) and an upper rim former (20); around the fixed semi-mold (14) are provided a counter cutting blade (21), an upper counter pleating/crimping ring (22) and a counter rim former (23), associated respectively with the cutting blade, the pleating/crimping ring and rim former on board associated with a mobile semi-mold.

Abstract: A die assembly for producing paperboard pressware includes an obliquely angled, continuous ring, and/or annular stop member between an inner die member and an outer die ring. Increased surface area of contact between stop components provides greater wear resistance, and the angled contact face maintains alignment of the die components.

Abstract: An apparatus for operating upon a construct. In one example, the apparatus comprises a tool, a feed path for a feed path for feeding the construct to and withdrawing the construct from the tool, and a positioning mechanism. The positioning mechanism comprises an arm positioned proximate to the tool and a guide for directing the construct toward the tool. The arm is movable between a guiding position and a withdrawn position, and the guide is mounted to the arm for moving with the arm so that the guide is at least partially disposed in the feed path when the arm is in the guiding position. A recess is defined in the tool for at least partially accommodating the guide.

Abstract: A machine for forming a container from a blank of sheet material is provided. The blank includes a reinforcing panel assembly for forming a reinforcing corner assembly. The machine includes a hopper station for storing the blank in a substantially flat configuration and a forming station for forming the blank into the container. The forming station includes an initial forming station that rotates a first portion of the reinforcing panel assembly with respect to a second portion of the reinforcing panel assembly, and a secondary forming station having male and female forming members with shapes corresponding to an interior shape and an exterior shape of the reinforcing corner assembly, respectively. The male and the female forming members are configured to form the reinforcing corner assembly by compressing together the first and second portions of the reinforcing panel assembly.

Abstract: A tray forming apparatus forms a blank into a tray having a double glued side wall construction for providing a desirable strength to the tray. A platen drives the blank through a forming rails which fold the blank into a partially formed tray having bottom, end and side walls, and inside corner supports formed about the platen. The platen is retracted prior to folding arms further extended portions of the partially formed tray. A compression plate and the folding arms are biased against adhesive portions of the tray for forming a fully formed tray having a double glued side wall construction.

Abstract: The invention concerns the equipment for forming of paper containers starting from a continuous wet paper belt. It comprises a mobile semi-mould and a fixed semi-mould defining an impression corresponding to the container to be produced. Around the mobile semi-mould (15) are provided concentrically an upper cutting blade (18), an upper pleating/crimping ring (19) and an upper rim former (20); around the fixed semi-mould (14) are provided a counter cutting blade (21), an upper counter pleating/crimping ring (22) and a counter rim former (23), associated respectively with the cutting blade, the pleating/crimping ring and rim former on board associated with a mobile semi-mould.

Abstract: An improved apparatus for making disposable pressware features a pneumatic feeding system which accelerates a paperboard blank into a forming die. In a typical embodiment, a pair of adjustable air knives propel a paperboard blank into the forming cavity.

Abstract: A method and equipment for molding an article produced from paperboard or cardboard. Moulding is carried out by a molding tool that mechanically works the board; and to improve its moldability, momentary irradiation on the microwave frequency is exerted on the board. The method applies to the manufacture of packages and disposable containers made of paperboard or cardboard; for example, to the forming of a rolled-up or folded rim around a drinking cup, mug or a container, the forming of a stiffening crease or projection on a paperboard container, or to press molding of paperboard containers or plates.

Abstract: Cardboard boxes are formed starting from a stamped sheet which is vertically pushed by a descending core (13) for folding the sectors (6) that are going to form the sides and those that are going to form the front ends (7), including equipment for folding of the extensions and/or flaps (8, 10) which are folded on the front ends and/or sides. The mold is intended to shape boxes having an upper horizontal bridge (9) in the sides (6), bridges presenting flaps (10) which fold over the front ends (7), being fixed to the outer face of them, with these front ends (7) in turn presenting end extensions (8) which are folded in the inner face of the sides (6). The mold includes runners (11) adjustable in height, permitting to fold the end extensions (8) of the front ends (7), also having wedges in ramp (14) and presses (15) with an inclined plane (16), for folding the flaps (10) of the upper bridges (9) of the sides (6), these flaps (10) being folded on the front ends (7).

Abstract: An improved apparatus for making disposable pressware features a pneumatic feeding system which accelerates a paperboard blank into a forming die. In a typical embodiment, a pair of adjustable air knives propel a paperboard blank into the forming cavity.

Abstract: An apparatus for effecting closure of an open end of a carton blank by placing portions of the carton blank into overlying relationship to one another is provided. The apparatus includes a cam that rotates about an axis of rotation and a cam lever that is operatively connected to the cam. The cam lever is used to convert rotating motion of the cam into linear motion to define a first stroke distance. A pressure pad is mounted for movement toward and away from the portions of the carton blank. The pressure pad is capable of being moved in response to input provided by the cam to define a second stroke distance. An air spring is mechanically linked to the cam lever and the pressure pad such that the air spring absorbs a portion of the first stroke distance.

Abstract: A smart mandrel for use with a container forming machine to form a Bliss style container having one or more structural columns in a side or end of the container. In the preferred embodiment, the mandrel has a frame, a female profile mechanism having a female forming tool fixedly supported by the frame, a male profile mechanism having a male forming tool slidably supported by the frame, an engaging mechanism to hold a side blank against the female forming tool and an actuating mechanism that moves the male forming tool into engagement with the female forming tool to form a column in the side blank. A mandrel carriage moves the formed side blank into engagement with a Bliss style body blank to form the desired container. The engaging mechanism comprises one or more suction cups and the actuating mechanism is a linear actuator having a pneumatic cylinder.

Abstract: Process and apparatus for producing (cigarette) packs with supporting protrusions (17), formed within the pack, above a base wall (16), the supporting protrusions (17) being formed by folding webs (19). The folding webs (19) or folding tabs are pre-folded or folded definitively, during the (customary) transportation of the blanks along a blank path (25), by corresponding folding elements, in particular by a folding wheel (32) with a folding protrusion (34) which folds the folding web (19).

Abstract: A machine for container formation by folding a die-scored paperboard structure to close flaps shaped by the scoring that serve as the top and bottom of the container. A scored paperboard sheet is loaded onto a male pedestal inner pattern such that the foldable top and bottom container portions extend beyond the pattern, whereupon armature driven semicircular outer patterns, having upper and lower fingers adapted to be driven by corresponding fluid driven pin stabilizers, close upon the sheet. While closed over the sheet, the pins are activated to move the fingers inward on the inner pattern and force fold the container along the score lines, followed by automatic retraction of the pins and outer patterns. The container is thus pre-folded in preparation for shipping as a flat paper form that is ready for folding on the crease lines thus formed. One or both flaps of the container can be folded along the crease lines to form a closure at one or both ends.

Abstract: A tool for providing cup-shaped, three-dimensional ornamentations for various items, such as, pictures, jewelry, or three-dimensional objects. The various tool embodiments include a power- or manually-driven plunger that engages a section of deformable material and drives it through a tapered nozzle opening to form a funnel-shaped cup. The bottom of the cup is adhered to an adhesive surface in a preselected pattern to provide the desired ornamentation.

Abstract: A single generally rectangular blank which can be formed into a paperboard package. The four corners of the blank are trihedral. The blank is center folded. The width of a first portion of the blank, measured parallel to the centerfold, is greater than a second portion of the blank. The blank is sealed on the two sides adjacent the centerfold to form an open package, which is then filled. The side opposite the centerfold is then sealed to close the package, forming a parallelepiped container. The seals are fin seals. The fin seal opposite the centerfold of the blank overlaps the two seals adjacent the centerfold. The three fin seals are folded flat against the sides of the package. The package may be provided with an opening through the blank. A tab may be provided to completely cover and seal around the opening in the package. The tab includes a grip portion which, when pulled upwardly, lifts the tab away from around the opening in the package.

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.

Abstract: An apparatus and method for forming a sheet of material into a flower pot or flower pot cover with fins. The apparatus comprises a male mold, a female mold having an opening mating with the male mold, and means for moving the male mold into and out of the opening of the female mold with the sheet of material between the two molds. To form outwardly extending fins in the flower pot cover, fingers are extended from the male mold to push folds in the sheet of material between segments of the female mold. The female segments are closed on the folds to form fins in the sheet of material as the male mold is pressed into the female mold to make the flower pot cover. To form inwardly extending fins, fingers are moved between the female segments to push folds in the sheet of material between segments of the male mold. The segments of the male mold close on the folds to form fins in the sheet of the material as the male mold is pressed into the female mold to make the flower pot cover.

Abstract: Bag of the type obtained from a single elongate planar cutting presenting two parallel long edges with the cutting being backfolded in order to define the two faces of the bag. The faces meet at a transverse bottom formed by the medial portion of the cutting and the two faces of the bag are joined edge to edge by their two long edges and the small side opposite to the bottom. The bag is characterized in that the bottom is comprised of two triangular facets which are opposite back to back from the central region of the bottom and the two triangular facets are bent back towards the internal volume of the bag. The apex of the triangle is oriented toward the outside and meets the corresponding long edge of the bag. Each long edge of the bag is formed by edge joining of the two faces and comprises, in the zone between the triangle apex and the bag base, four thicknesses or layers from the initial cutting, sealed to each other.

Abstract: Bag of the type obtained from a single elongate planar cutting presenting two parallel long edges with the cutting being backfolded in order to define the two faces of the bag. The faces meet at a transverse bottom formed by the medial portion of the cutting and the two faces of the bag are joined edge to edge by their two long edges and the small side opposite to the bottom. The bag is characterized in that the bottom is comprised of two triangular facets which are opposite back to back from the central region of the bottom and the two triangular facets are bent back towards the internal volume of the bag. The apex of the triangle is oriented toward the outside and meets the corresponding long edge of the bag. Each long edge of the bag is formed by edge joining of the two faces and comprises, in the zone between the triangle apex and the bag base, four thicknesses or layers from the initial cutting, sealed to each other.

Abstract: Bag of the type obtained from a single elongate planar cutting presenting two parallel long edges witch the cutting being backfolded in order to define the two faces of the bag. The faces meet at a transverse bottom formed by the medial portion of the cutting and the two faces of the bag are joined edge to edge by their two long edges and the small side opposite to the bottom. The bag is characterized in that the bottom is comprised of two triangular facets which are opposite back to back from the central region of the bottom and the two triangular facets are bent back towards the internal volume of the bag. The apex of the triangle is oriented toward the outside and meets the corresponding long edge of the bag. Each long edge of the bag is formed by edge joining of the two faces and comprises, in the zone between the triangle apex and the bag base, four thicknesses or layers from the initial cutting, sealed to each other.

Abstract: An apparatus 10 for forming a coffee filter has a filter compartment 14 and a primary compartment 16. A filter roll 22 is unwound from the filter roll compartment 14 and fed into the primary compartment 16. Within the primary compartment 16 is a suspended floor 24 having an aperture 44, a pair of fingers 76 which indexes the filter paper across the aperture 44, and a plunger 116 having an outside dimension which is matingly received in the aperture 44 of the floor 24. The filter paper is conformably sized about the outside dimension of the plunger 116 when the filter paper is indexed to a position across the aperture 44 and the plunger 116 is moved through the aperture 44 in the floor 24. A clamp 119 is used to hold the filter paper against the floor 24. Upon travel of the plunger 116 through its stroke, a discrete coffee filter is formed and separated from the remainder of the filter roll 22 at the location where the clamp 119 is depressed against the filter roll 22.

Abstract: A machine for and a step by step method of forming packages or containers from blanks, heat sealing the sides of the packages and depositing the packages in fixtures, retaining the packages in fixtures during dosing of the packages with product, heat sealing the tops of the packages and ejecting the packages from the fixtures. The sides of a newly formed package are heat sealed through apertures in the forming die before the package is placed in the fixture. Once placed in the fixture at the forming station, the package remains in the fixture during the filling or dosing of product at the filling station and as indexed into the top sealing station. At the top sealing station the filled package is partially elevated from the fixture to expose the entire top of the package for heat sealing.

Abstract: Box forming apparatus for forming a box from a box blank. The blank has a base with first, second, third and fourth side members extending along respective sides of the base. One of the opposed pairs of side members has parallel inner and outer portions. The other pair has flaps extending from each opposed end. In the apparatus, a pair of spaced, parallel frame members are slidably mounted on a fixed framework. A box forming plate moves vertically between the frame members. A rectangular box forming piston moves vertically between the frame members in alignment with and against the box forming plate. The forming plate and piston have the same size and shape as the box blank's base. A movable frame is provided for vertical displacement beneath the frame members. A flap tuck mechanism on the first frame members folds the flaps perpendicular to the other side members. The flap tuck mechanism is actuated by vertical displacement of the movable frame toward the frame members.

Abstract: A method and apparatus for forming a container from a sheet of blank material, whereby a segmented male die member first forms the bottom and then the sidewall and rim of the container prior to the formation of the lip portion of the container while the blank is being restrained in a radial direction by the engagement of the blank by two opposing draw pad members.

Abstract: Rectangular blanks of laminated cardboard are converted into containers for foodstuffs or the like in an apparatus wherein the central portion of a blank is clamped between two coaxial tools one of which has a concave blank-contacting surface and the other of which has a complementary convex blank-contacting surface. The tools can enter the cavity of a matrix with edges at one end of the cavity serving to cooperate with edges bounding the surfaces of the two tools so as to define pronounced boundaries between the clamped portion and the adjacent outer portions of the blank. The tool with the concave front surface is caused to penetrate into the cavity and to push the other tool in front of it whereby the outer portions of the blank are converted into a pair of sidewalls with convex outer sides.

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: Apparatus for forming a tapered, nestable leakproof container having a bottom wall integral with front and back panels and side panels and a triangular connecting panel between additional panels extending from the front and back panels and the side panels, wherein the apparatus comprises a die and a tapered mandrel for forcing a blank through the die. The container blank is positioned on a support immediately above the die and held in position by guides on the support. Before the tapered mandrel engages the blank, glue is applied to the outer edges of the side panels of the rear wall of the container at the inner surfaces adjacent the outer edges of side panels connected to the rear panel and at the inner surface adjacent the outer edges of the side panels. The blank is forced into the die by the tapered mandrel. Appropriate pressure rollers resist the entry of the mandrel and move outwardly as the mandrel moves into the die moving the blank into the die.

Abstract: An apparatus and method are disclosed for erecting from a single blank a carton having integral interior partitions. Blanks are supplied to the machine and, in three folding stations, are folded along score lines and cuts and then sealed to form the finished carton. Erection of the carton and provision of interior partitions is accomplished by a single machine in a continuous process.

Abstract: An apparatus and method for forming flat cut carton blanks into erected cartons with debowed carton side panels is disclosed. The apparatus includes a forming head receiving and directing a carton blank through forming guides. Pinching wheels rotatably secured adjacent the forming guides include a pinching notch with a leading edge projecting inwardly into the forming head path. The pinching notch engages the descending carton bottom and side panels to capture and pinch the fold lines and overbreak the side panels at the fold lines between the carton side and bottom panels. An inclined surface with a sharp creasing edge abutting the inside of the fold line assists the pinching notch in creasing the fold lines. An extension edge formed adjacent a trailing edge of the pinching notch completes the overbreaking action. A release edge formed adjacent the leading edge gently releases the carton side panels from the overbreaking position upon counter rotation of the wheel.

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: An apparatus and method for forming flat cut carton blanks into erected cartons with debowed carton side panels is disclosed. The apparatus includes a forming head receiving and directing a carton blank through forming guides, side walls engaging and supporting the carton side panels that bend into upright position relative to the carton bottom panel during descending movement through the forming guides. Presser fingers pivotally secured to the forming guides project inwardly into the forming head path. The presser fingers bend the side panels into cutout openings provided in the side walls to overbreak the side panels at fold lines between the carton side and bottom panels. An inclined surface with a sharp creasing edge abutting the fold lines enables the presser fingers to initially crease the fold lines and thereafter bend the carton side panels inwardly onto the inclined surface for controlled overbreaking movement.

Abstract: In the erection of a tray having edge flaps with end flaps which are to be fastened together for forming a rim of edge flaps intended for receiving a lid, the erection is performed in two separate tools. In the first tool only the one pair of opposing edge flaps are folded out, whereafter their end flaps are folded up and attached to the outside of the second pair of end flaps. The partially erected tray is then ejected from the underside of the forming chamber and transferred to a second tool where all edge flaps are subjected to being folded downwards.

Abstract: A machine for forming a container with full width 3-ply laminar end walls from a preformed cardboard container body blank having side and outer end wall ply forming panels along the sides and ends of a bottom forming panel and inner end wall ply forming panels extending endwise from the ends of the side wall panels. The machine erects and seals the body blank with a mandrel and forming die to form a finished container by applying glue to selected end wall panel surfaces, folding the inner end wall panels upwardly relative to the side wall panels, and then folding the side and outer end wall panels in succession to upright positions relative to the bottom panel to upstanding side by side positions inwardly of the outer end panel with the confronting end panel surfaces in mutual adhesive bonding contact.

Abstract: An apparatus and method for forming a box having a box body comprising interconnected bottom, side and end walls, shoulder elements connected to the side walls and securing flaps connected to the shoulder elements.

Abstract: Method and apparatus for forming a stackable tray from a paperboard blank having a base panel, two pairs of wall panels attached to the base panel, adhesive coated gussets formed at the corners of the wall panels, and flanges formed along the outer edge of each wall panel. The tray forming apparatus includes a vertically reciprocating plunger having vacuum ports formed in its side walls, two pairs of flange folding fingers mounted on the plunger, a forming head including a cavity disposed beneath the plunger, and a stacking cage having flange retaining rails disposed beneath the cavity for receiving the trays after forming. The trays are formed as follows:A tray blank is first positioned over the forming cavity. The downwardly reciprocating plunger contacts the blank and urges it into the cavity causing the tray sidewalls to be erected and the adhesive coated gusset corners to be folded against adjacent side walls. The erected tray walls are retained on the plunger by the vacuum ports.

Abstract: A box blank with receptacle and cover sections each with side flaps and end flaps has a hinge panel joining the two sections. A vacuum pickup draws a flat blank from a supply stack to a feed carriage which transfers the blank past sprays that apply glue to the end flaps. The speed of the carrier varies, but beneath the glue sprays speed is uniform. The carriage delivers the glue coated box blank to a former and a tray forming head having concave and convex interacting pressure plates which maintain doubled over end flaps of each section in a concave configuration with respect to the box while the folded end sections are adhered to form a box tray from the blank. Former flap benders cooperate with the tray forming head to shape the box tray. A second vacuum pickup clasps the formed tray at the hinge panel and draws a shaped tray from the forming head into engagement with folding elements such that the cover and receptacle sections are bent together along the hinge panel to form a closed box.

Abstract: A machine for forming an H-section carton (19) from three corrugated blanks--two section blanks (21a and 21b) and a main body blank (23)--is disclosed. The machine has a generally L-shaped silhouette, with one leg of the L shape generally defining the path of travel of the section blanks and the other leg defining the path of travel of the main body blank. A supply of vertically oriented section blanks are located on opposing sides of the section blank leg. The two section blanks facing one another are simultaneously moved toward the main body blank leg, along parallel paths. The section blanks are first moved past glue heads (61a and 61b), which apply glue to the center region (22a and 22b) of the facing surfaces of the section blanks. Then, section forming mandrels (85) ram the section blanks toward one another into a U and H-section forming die (87). More specifically, the section modules first deform the section blanks into a U-shape.