Abstract: A rolling mechanism for having an opening perforation line on a plastic packaging film is disclosed, including a carriage frame, a pressure bearing unit, an impact cushioning mechanism, and an opening cutter assembly. The pressure bearing unit includes a pressure bearing seat, an anvil roll, and a retention plate, wherein the retention plate comprises a receptacle channel. The retention plate is used to position the anvil roll in the receptacle channel of the pressure bearing seat. The impact cushioning mechanism is coupled between the carriage frame and the pressure bearing seat. The opening cutter assembly is arranged adjacent to the anvil roll, which includes an opening cutter shaft and at least one opening cutter blade attached to the periphery of the opening cutter shaft.

Abstract: A compression or fold completion device used to uniformly compress a folded edge of a workpiece, such as a box blank, in order to allow the blank to more easily be utilized in subsequent packaging operations. The device includes a pressure roller mounted to a rotatable adjustment member. The rotational axis of the pressure roller is offset from the rotational axis of the adjustment member. The adjustment member is in turn connected to an actuating assembly, which may include an arm secured at one end to the adjustment member and at the other end to an extendible and retractable actuator, in order to enable the actuator to rotate the adjustment member and selectively position the pressure roller in engagement with a folded edge of a workpiece passing beneath the pressure roller.

Abstract: A heat-insulating container is used for an instant dried food and is excellent in heat-insulating property, design and economy. The container comprises a paper cup body with a bottom, which has an inner surface coated with a polyolefin resin and is provided with an outward curled portion formed at an upper opening end of the cup body and at least one horizontal rib formed on a side wall of the cup body so as to project outward therefrom; and an inverse-frustoconical paper sleeve provided with an inward curled portion formed at a lower end of the sleeve. The cup body and the sleeve are integrally combined with each other so that an upper end of the sleeve is joined to an outer periphery of the side wall of the cup body, which is adjacent to the outward curled portion of the cup body, and an inner surface of the inward curled portion of the sleeve is joined to an outer periphery of a lower portion of the side wall of the cup body.

Abstract: It is desired to provide a creasing device of which the distances between rollers of a plurality of creasing units are individually adjustable. A plurality of creasing units 40 each comprising a female creasing roll 41 and a male creasing roll 42 provided thereunder are provided so as to be positionable in a direction perpendicular to the feed direction of a corrugated sheet S0. As many roller arms 43 as the creasing units 40 are provided so as to be pivotable about a common first drive shaft 31. Each roller arm 43 rotatably supports one of the male creasing rolls 42. By pivoting each roller arm 43 with a pivoting means 45, the male creasing roll 42 is moved relative to the corresponding female creasing roll 41, thereby adjusting the distance between the rolls.

Abstract: A folder is adapted to fold sheets. A drum having a circumferential surface is adapted to withdraw sheets from a stack or from an overlapping flow and feed the sheets to the folder. A creasing apparatus is operatively arranged with the drum and includes: a first creasing wheel which cooperates with the drum to crease the withdrawn sheets that are fed to the folder, and a tracing wheel positioned at least axis parallel with the first creasing wheel and running on the circumferential surface of the drum to maintain a constant distance between the first creasing wheel and the circumferential surface of the drum.

Abstract: The present invention relates to an apparatus for manufacturing packages, comprising a fist plurality of arms (2) which are at substantially equal mutual spacing, on symmetric distribution about a circle, radially extend about a geometric axis (X) and located in a common plane at right angles to the axis, as well as a second plurality of treatment stations (4) which are disposed a radial distance from the axis (X), as well as rotary means which are disposed to rotate the arms intermittently about the axis (X) between the treatment stations (4), the arms (2) and the treatment stations (4) being disposed in relation to one another such that the position of the arms (2) and the position of the treatment stations (4) coincide after the intermittent rotations. In a single indexing state, the apparatus (1) is configured to be disposed to rotate the arms to one distribution at a time, and in a double indexing state, to be disposed to rotate the arms (2) two distributions at a time.

Abstract: The present invention relates to a method for the manufacture of a perforated nonwoven material, whereby a prebonded nonwoven with embossing points is guided to a nonwoven perforation device, needles of a needle roller engage into the prebonded nonwoven and perforate it, and the perforated nonwoven material then undergoes further processing. A ratio is set between the number of needles to the number of embossed points of between 0.15 and 0.25 and a ratio of hole size to embossed point size of between 0.15 and 0.25.

Abstract: Rotary transfer mechanism is mounted on a frame for removing a flat folded carton from a storage hopper to move the carton to a flight conveyor assembly and in cooperation therewith erect the carton to be in an open rectangular condition. The transfer mechanism includes end plates rotated in one angular direction and vacuum cup assemblies rotated therewith and relative thereto in the opposite angular direction. The cup assemblies include transversely opposite cups having adjacent sides less flexible than their remote sides and intermediate cups having buttons therein to form dimples in a carton panel when grippingly engaged. The flight assembly includes guideways to have lugs of flight devices extend into their channels as devices move along the upper run of an endless conveyor. The flight devices include flight bars extending vertically above the lugs as the lugs move in said channels.

Abstract: A machine for punching blanks (10) of corrugated cardboard out of a web or plates of corrugated cardboard and for forming folding lines (5) in said blanks. The machine has two cylinders (2, 3) rotating towards each other and of which at least one cylinder is provided on the outer surface with a curved wooden plate (6). The punching tools and the folding line tools (8, 9) are mounted on said wooden plate by being pressed into slits in said wooden plate (6). The cylinders (2, 3) are made of metal, preferably steel. The wooden plate (6) is secured to the cylinder (2, 3) by being screwed (15) thereon. The wooden plate is centered on the cylinder by means of two adjustable rings (4) on the cylinder. Each ring (4) is provided with an axially directed guide projection (4a, 4b) adapted to interact with an end notch (6a, 6b) in the wooden plate.

Abstract: A scoring head configured for rotating about an axis of rotation and impressing score lines into corrugated board. The scoring head includes an inner wheel portion extending axially along an axis of rotation, extending radially about the axis of rotation, and defining first and second radial edges. The scoring head also includes a scoring edge portion located at an axially outer edge of the inner wheel portion and faired into the first and second radial edges of the inner wheel portion. The scoring edge portion, when viewed in cross-section, includes a substantially axial tier located between two substantially radial sides. The scoring edge portion also includes a curvilinear nipple shaped nib faired into the radial sides of the axial tier and faired into the first and second radial edges of the inner wheel portion. The nib may also include a base portion faired into the first and second radial edges and a bottle nose-shaped portion faired into the base.

Abstract: An existing box-making machine is retrofitted by first removing the pull rolls and impression cylinder and other associated parts and cross-ties. However, the heavy duty side frames and drums, including the print cylinder are left intact in the box-making machine. A vacuum transfer machine is then inserted in the box-making machine and mounted to the existing frame to replace the pull rolls that were removed. The vacuum transfer machine includes a hood enclosure having an impression cylinder for printing, and transport rolls on opposite sides of the impression cylinder for conveying the corrugated boards through the impression and print cylinders and to the die cutter. The boards are held against the transport rolls and the impression cylinder by vacuum generated in a vacuum chamber in the hood which also contains the transport rolls and the impression cylinder. The vacuum chamber contains a plurality of vacuum dampers for controlling the vacuum area in accordance with the size of the boards being processed.

Abstract: Apparatus having laminating rolls for laminating continuous strips of different kinds of material together wherein all of the continuous strips enter the nip between the laminating rolls from one side of a plane tangent to each of the laminating rolls at the nip. Also, apparatus having rotary cutting and creasing rolls located before the laminating rolls form most of the cut lines for the carton blank without changing the continuity of a continuous strip of a relatively rigid material so that it can be pulled through the laminating rolls. In those instances wherein two carton blanks are formed at the same time, scrap removal apparatus is provided for removing scrap located between the two carton blanks.

Abstract: Individual carton blanks formed from a lamination of a continuous strip of a relatively rigid material and a relatively flexible fluid impervious material and in some instances from spaced apart continuous strips of a relatively flexible material wherein all of the cut and fold lines are formed in the continuous strip of a relatively rigid material and then conveyed to the nip between two rotating laminating rolls where all of the continuous strips are secured together by an adhesive at desired locations. In some instances, the continuous strip of a relatively flexible fluid impervious material and the spaced apart continuous strips of a relatively flexible material are cut at a location spaced from the leading edge of the individual carton blanks.

Abstract: An existing box-making machine is retrofitted by first removing the pull rolls and impression cylinder and other associated parts and cross-ties. However, the heavy duty side frames and drums, including the print cylinder are left intact in the box-making machine. A vacuum transfer machine is then inserted in the box-making machine and mounted to the existing frame to replace the pull rolls that were removed. The vacuum transfer machine includes a hood enclosure having an impression cylinder for printing, and transport rolls on opposite sides of the impression cylinder for conveying the corrugated boards through the impression and print cylinders and to the die cutter. The boards are held against the transport rolls and the impression cylinder by vacuum generated in a vacuum chamber in the hood which also contains the transport rolls and the impression cylinder. The vacuum chamber contains a plurality of vacuum dampers for controlling the vacuum area in accordance with the size of the boards being processed.

Abstract: A apparatus for manufacturing an object of a folded sheet material has improved slitting, scoring/crushing, gathering, and folding sections or devices. Qualifying means, slitting means, and scoring/crushing means are adjustable with respect to a flat, planer, path of movement so that sheet material moves through the machine without causing the paper to assume an "S" shape, or otherwise suffer loss of paper control. Qualifying means bring within tolerance, sheet which is over thickness. Identifying rollers identify and slightly pre-fold a blank before it enters a gathering and pre-folding section. Novel slitting and scoring heads are easily changed in number or configuration, and have easily replaceable split blades.

Abstract: A box blank forming apparatus includes at least one printing assembly, a slotting assembly, and a feeding and conveying mechanism for feeding blanks through the apparatus. The printing assembly includes a rotatable printing cylinder, and the slotting assembly includes a rotatable blade. The feeding and conveying mechanism brings the blanks into contact with the printing cylinder and the slotter blade to complete printing and slotting operations on the blanks in the formation of boxes. An interrupter is provided in association with the printing assembly for removing the blanks from contact with the printing cylinder, and similar structure can also be provided with the slotting assembly for removing the blanks from contact with the slotter blade. A controller is provided for controlling operation of the interrupter of the printing assembly.

Abstract: A flat insulated container blank for forming the sidewall of a conventional insulated paper container made on a rotary turret single wrap cup making machine includes an inner layer of container stock, an intermediate layer of insulating material adhered to the container stock and an outer layer of label material. The blank is made from advancing webs of sheet material by a continuous form process.

Abstract: Cross cuts for forming the ends of a tab on a sheet, for example a glue tab on a corrugated paperboard container blank, are performed by independent rotary cutter units. Each cutter unit has a spirally convoluted blade which, as it rotates, cuts progressively inwards from an outside edge of the sheet towards an opposite outside edge. As the sheet is conveyed along, a downstream cutter unit cuts the leading end of the tab, and an upstream cutter unit cuts the trailing end. After each cut, the cutter remains at rest with its blade in an inoperative position out of the path of any oncoming sheet. A sensor senses the next oncoming sheet and initiates the cutting via a computer. These rotary cutters mitigate skewing of the sheets while being cut.

Abstract: A method and apparatus are disclosed for preparing box blanks of corrugated board which include feeding the blanks of corrugated board in succession along a feed path and in a direction parallel to opposite edges of the blanks. The blank is folded to form a flat tube prior to its formation into a box. The opposite edges of the folded blank overlap and are reduced in thickness in the areas in which the overlap occurs. Cutting means adjacent to the feed path removes material from opposite faces of the respective edges. The resulting flaps overlap with an unreduced portion of the board of the finished box.

Abstract: A machine for forming a box without smearing or distorting its printed matter. The machine has a feed section at its input stage, a stacking section at its output stage, and print, dryer, and die cutter sections at its intermediate stages. The dryer section has an overhead vacuum conveyor for moving box blanks from the print section to the die cutter section. The die cutter section for forming the cutouts in the box has a first and a second roller, with the first roller having an extension and the second roller means having a soft surface to allow the extension to penetrate, thus cutting the box. The drying operation is performed without causing any smearing of the printed matter and, similarly, cutouts are formed without causing any distortion of the printed matter, all being accomplished while the box blank moves along its predetermined path within the box forming machine.

Abstract: Apparatus and method for cutting an end portion of a carton blank, e.g. to form a stitch flap, employs a rotatably driven male cutting head cooperating with a rotatably driven female cutting head. The female cutting head has a peripheral cutting groove therein and an anvil surface adjacent one side of the groove. The male cutting head has a two edged slot cutting blade of predetermined arcuate length which enters the groove each revolution, and a knife which extends transversely away from the blade and engages the anvil surface each revolution. The blade has a scallop-like cut-out in the side adjacent the anvil surface. The cut-out modifies the blade to a single edged cutting blade for a small part of its length. Scrap portions produced from the carton blank by a slotting cut of the blade and a transverse cut of the knife are integrally connected together by a bridging piece enabled by this cut-out.

Abstract: A pair of rotary dies with lands having coacting cutting edges which cut blanks of material from a web passing between the rotating dies. To provide a clean cut and improved squareness of the cut ends, a side face of the land adjacent the cutting edge has a positive rake. To insure that the cutting edges can be brought into coacting relationship to produce a clean cut, they are located and arranged on the dies so that they can be varied and adjusted axially and in rotary phase relationship to each other. A die stand for positioning, adjusting and driving the rotary dies, and a method for making negative electrode cylinders for producing the rotary dies by hardening, grinding and electric discharge machining blank cylinders of tool steel, are also disclosed.

Abstract: A duplex slitter scorer mounted on a single pivoted sub-carrier is provided with a single power adjusting apparatus disposed entirely below the paper feed path. The adjusting apparatus includes a single rotatable lead screw to position a common carrier mounting first and second relatively movable adjusting arms that are selectively engageable in sequence with the slitting and creasing heads. The lead screw axis is fixed transversely and both adjusting arms are retractable to permit indexing of the pivoted sub-carrier. To compensate for paper weave, the sub-frame is moved along its pivot axis. The lead screw is fixed against longitudinal movement but is partially controlled by a signal indicative of sub-carrier position along its pivot axis so that the instantaneous position of the adjusting apparatus common carrier is related to the instantaneous position of the sub-frame along its pivot axis.