Abstract: In a folder-gluer, push-out forces by an air cylinder and a push-out spring mechanism are set such that: (1) when downstream portions of first and fourth panels are passing through a second bending plate, the second bending plate is pushed outwardly in a width direction by the push-out forces to extend the downstream portions of the first and fourth panels in the width direction; and (2) when upstream portions of the first and fourth panels are passing through the second bending plate, the second bending plate is pushed back inwardly in the width direction by the resistance force applied to the second bending plate by the first and fourth panels so as not to extend the upstream portions in the width direction, and wherein the push-out forces are not varied by a control while the first and fourth panels are passing through the second bending plate.

Abstract: The composite structure includes a fiber-containing layer, such as a fiberboard layer or other layer having fibers from natural and/or synthetic sources, and a mineral-containing layer covering the fiber-containing layer. The fiber-containing layer and mineral-containing layer can be shaped, sized and manufactured such that the composite structure formed therefrom is capable of being machined to form a storage article. The composite structure has advantages in that it can improve whiteness, opacity, ink adhesion, materials reduction, barrier properties, recyclability, and printability. The composite can reduce polymer mass requirements for heat seal, barrier, and fiber adhesion. Further improvements include economics, pliability, and flexibility that is increased over the pliability of the fiber-containing layer alone.

Abstract: The present invention relates to a biaxially oriented polyethylene foil (BOPE) comprising layers (A) to (D), wherein layers (B) to (D) contain biaxially oriented polyethylene and layer (A) contains polyurethane and nanoparticles and has a layer thickness of 25 to 300 nm, layer (B) comprises polymers having functional groups which are capable of forming covalent bonds with polyurethane and are directly connected to layer (A), layer (C) has at least a layer thickness of 50% of the total thickness of the foil and layer (D) represents an outer layer of the foil, which contains antiblocking agents. The invention further relates to methods for producing such foils.

Abstract: The invention concerns a generally parallelepiped corrugated box for packaging and transporting objects, the box comprising a lid formed by a lateral can-band carton including a front wall, a rear wall, and side walls and a top, and a tray forming a base including a central panel comprising four main sides each respectively provided with a first flap. The front and rear flaps are U-shaped and define each with the top a central recess enabling an object in the box to be gripped manually by a user from the side and/or from above. One or several partly precut portions and/or one or several bonding points enable the walls of the lid to be detached from the first flaps of the tray by manual separation resulting from a force applied perpendicularly to the walls.

Abstract: Techniques for automatically setting trim removal or stacking device arms. One point on a trim arm (such as an end) is attached to a transverse rail, along which that end moves, and provides an anchor point to which the trim arm can be angled. An automated device anchors that end of the trim arm, and locks it in place at a position designated by an operator. A skew adjustment pin couples to a second point on the trim arm, so that adjusting the position of the adjustment pin skews the trim arm's angle. An automated device anchors that second point of the trim arm, and locks it in place at a angle designated by an operator. A control system electronically measures the location of the first anchor point, and directs positioning devices to move trim arms, skew them, and lock or unlock those settings.

Abstract: A flat presser for supporting blanking material during operation of a blanking tool for making packaging blanks includes a plurality of coaxially oriented, concentric wall sections of progressively different interior areas and being collapsible from an extended position wherein the wall sections partially overlap in an axial direction to a collapsed position wherein the wall sections substantially completely overlap in the axial direction, and a biasing mechanism for biasing the wall sections to the extended position.

Abstract: The composite structure includes a fiber-containing layer, such as a fiberboard layer or other layer having fibers from natural and/or synthetic sources, and a mineral-containing layer covering the fiber-containing layer. The fiber-containing layer and mineral-containing layer can be shaped, sized and manufactured such that the composite structure formed therefrom is capable of being machined to form a storage article. The composite structure has advantages in that it can improve whiteness, opacity, ink adhesion, materials reduction, barrier properties, recyclability, and printability. The composite can reduce polymer mass requirements for heat seal, barrier, and fiber adhesion. Further improvements include economics, pliability, and flexibility that is increased over the pliability of the fiber-containing layer alone.

Abstract: A thermoform packaging machine comprising at least one cross cutting station that includes a punching device for cutting out strip cuts from a packaging film. The thermoform packaging machine also includes a receptacle for receiving a stack of a plurality of the strip cuts and a slide element for supporting the weight of the stack during operation of the punching device. The slide may be position to be inserted between two adjacent strip cuts in the stack in the receptacle. A method of operating such a thermoform packaging machine is also described.

Abstract: A blank of sheet material for forming a convertible shipping container is provided. The blank includes a removable access panel, a top panel, a bottom panel, a front panel, and a rear panel. Each of top, bottom, rear, and front panels include side flaps extending from a side edge of each top, bottom, rear, and front panel. The removable access panel includes an access hole, a return hole, and relief creases to facilitate removal after the container is formed. The shipping container includes a top wall, a bottom wall, a front wall, a rear wall, a first side wall, a second side wall, and four corner structures.

Abstract: A machine for making covered paper or cardboard boxes which have a curvilinear outline includes elements for forming a curvilinear box (6) and a covering station (R) operating in conjunction with elements for the linear feed of a pre-glued covering sheet (12), in such a way that the sheet (12) is connected to the outer wall of the box (6).

Abstract: A flat presser for supporting blanking material during operation of a blanking tool for making packaging blanks includes a plurality of coaxially oriented, concentric wall sections of progressively different interior areas and being collapsible from an extended position wherein the wall sections partially overlap in an axial direction to a collapsed position wherein the wall sections substantially completely overlap in the axial direction, and a biasing mechanism for biasing the wall sections to the extended position.

Abstract: A pressure vessel is provided with one or more integral pressure ports formed by extrusion of the pressure vessel wall. The portion of the vessel to receive the port is drilled or punched to form an opening into which an extrusion tool is inserted. The inner periphery of the vessel surrounding the opening is backed-up by a cylindrical die, and the extrusion tool is pressed into the die to extrude a marginal portion of the vessel material surrounding the opening into the die to form an integral internal sleeve with an O-ring seal area, and to form straight threads in the extruded sleeve by roll-deformation. The pressure ports can be formed in the body or end-caps of the pressure vessel, and the portion of the vessel to receive a port may be locally flattened prior to formation of the port.

Abstract: A sheet punching apparatus includes a transport unit for receiving a sheet; a hole punching device for punching a hole in the sheet transported to the transport unit; a punch scrap container for storing punch scraps after the hole punching device punches the hole; a sweeping device for sweeping a top portion of the punch scraps stored in the punch scrap container to level the top portion; and a drive device for driving the hole punching device and the sweeping device. A sheet finishing apparatus and an image forming apparatus includes the sheet punching apparatus.

Abstract: A rotary cutting die apparatus for cutting corrugated board and trimming an outside trim piece from the corrugated board. The rotary cutting die apparatus includes a die cylinder, a cutting die mounted to the die cylinder, and an anvil cylinder disposed adjacent the die cylinder. Mounted on the cutting die is at least one trim cutting blade for trimming an outside portion from a corrugated board passing between the die cylinder and the rotary anvil. Mounted on the cutting die outside of the trim blade is one or more trim strippers or devices for engaging the cut trim pieces and moving the cut trim pieces away from the cutting die and generally separating them from the finished corrugated board product produced by the die cutting apparatus. In the case of the embodiment illustrated herein, each trim stripper or device includes a base secured to the cutting die and an angled elastomer finger extending from the base.

Abstract: Known folded box gluing machines for producing folded boxes (1) from blanks comprise—a folding station (3), in which the parts of blanks provided with an adhesive strip are folded,—an adjoining transfer station (5) which is configured as a transport device and has at least two conveyer belt pairs, each consisting of an upper and a lower belt (7, 8) and a device for ejecting defective boxes (11) and—a collection and pressing device (6), in which the flat folded boxes are pressed together, in order for the adhesive to bind.

Abstract: A flush mounted presser assembly for a die cutting machine. The presser assembly includes a support member having an upper surface which defines a substantially horizontal plane, a presser movable vertically in a plane perpendicular to the horizontal plane of the support member between a first extended position spaced from the support member beneath the horizontal plane and a second retracted position also beneath the horizontal plane of the support member, and a mounting arrangement for mounting the presser to the support member wherein the mounting arrangement is disposed flush with or below the horizontal plane of the support member so that none of its components extend or project above the horizontal plane of the support member. The mounting arrangement comprises a base mounted on the support, a linkage assembly interconnecting the base and presser, and a spring for biasing the linkage assembly and presser toward its first extended position away from the support member.

Abstract: A device used to separate and discard a skeleton formed when a blank is cut into the pattern of a folding carton, envelope, or other desired shape is provided. The device includes first and second separating cylinders. The second separating cylinder includes at least one protrusion extending from the surface thereof, and also has at least one recess formed therein. The protrusions are used to couple the skeleton to the second cylinder. The device further includes a stripping plate having a leading edge positioned near the second cylinder. At least one stripping finger extends from the edge of the stripping plate and within the recess of the second cylinder. The stripping finger is thereby positioned between the second cylinder and the skeleton as the second cylinder rotates toward the stripping finger. The stripping finger operates to disengage the skeleton from the protrusions, thereby stripping the skeleton from the second cylinder.

Abstract: A device for separating and stripping waste material from a blank during a carton or envelope manufacturing process is provided. The device includes first and second separating cylinders. At least one pin and sleeve assembly is coupled to the second separating cylinder, and includes a pin having a sleeve slidably coupled thereto. A tube or hollow bar is coupled to the separating cylinder, and has at least one aperture therein generally aligned with the pin and sleeve assembly. In separating the waste material from the blank, the pin couples the waste material to the second separating cylinder. A fluid such as compressed air is forced into the tube and directed through the aperture to slide the sleeve from a retracted position in which the pin is exposed to an extended position in which the pin is concealed, whereby the waste material is forcibly removed from the pin.

Abstract: The present invention generally encompasses a device for removing waste material from a blank. The invention includes a rotatable stripping pin housing and a stationary cam. The stripping pin housing includes a number of radially extending grooves in its axial surface. Each groove terminates at an aperture located in the stripping pin housing's circumferential surface. A stripping pin apparatus having an radially outwardly extending stripping pin capable of penetrating waste material and an axially extending cam follower is position within each groove. Each cam follower is engaged within a cam track in the stationary cam. The stripping pin housing is placed so that the stripping pins will engage waste material (and not the blank) as the material passes the device. Thereafter, the stripping pin housing is rotated causing the cam followers to travel along the cam track so that the radial location of the cam track determining the radial position of the stripping pins.

Abstract: A folding-box gluing or adhesive-bonding machine for producing folding boxes from blanks includes a folding station for folding parts of the blanks provided with a strip of adhesive. An adjoining transfer station includes at least two pairs of conveyor belts acting as a conveying device, a device for removing faulty folding boxes including a circular knife for cutting in a longitudinal conveying direction of the folding boxes and being lowered and lifted between the conveyor belts into and out of a conveying plane, and a device for laterally withdrawing side parts of the blanks severed by the longitudinal cut. The laterally withdrawing device has a flat rotary table outside and immediately adjacent one of the pairs of conveyor belts, an electric motor and at least two pressure disks. A collecting and pressing device presses the boxes having been folded flat, to set the adhesive.

Abstract: An apparatus for machining a web-shaped workpiece includes a workpiece supply for supplying workpiece rolls each of an elongate thin metal sheet, a processing machine for machining the elongate thin metal sheet into caps, a workpiece feeder for feeding the elongate thin metal sheet to the processing machine, and a product feeder for automatically separating the caps from scrap and feeding the caps to a product collecting mechanism. The apparatus is capable of efficiently and quickly producing various products from the elongate thin metal sheet.

Abstract: Scrap cuttings are separated from a panel that was punched or cut from a sheet of material by providing a transport device (22) that attracts a sheet of material (10), supported by a platen (15) of a machining device (16), that was punched or cut via the attractive force of a first attraction surface (28). Subsequently, the transport device (22) is moved toward a second attraction surface (39) of a cutting separator (18) until the sheet of material (10) is lying on top of the second attraction surface (39); and the attractive force exerted in this position by the second attraction surface (39) is greater in the area of the cuttings (14) than the attractive force exerted by the first attraction surface (28), and the attractive force exerted by the second attraction surface (39) in the area of the panel (12) is smaller than the attractive force exerted by the first attraction surface (28).

Abstract: In an apparatus for making plastic bags from a web material comprising two or more layers of plastic film, the material is intermittently fed for a length along a longitudinal feeding path, to successively make plastic bags with wastes, each of the wastes having upstream and downstream edges. The apparatus includes partially cutting means disposed at a first station predetermined along the feeding path. The material is partially cut by the partially cutting means along the upstream and downstream edges of waste whenever intermittently fed and temporarily stopped. The apparatus further includes waste removing means disposed at a second station predetermined downstream of and at a distance from the first station. The waste reaches the second station when the material is intermittently fed again after partially cut by the partially cutting means. In addition, the apparatus includes discharge means disposed at a third station predetermined downstream of and at a distance from the second station.

Abstract: An apparatus and method for removing cutout material that is at least partially severed from a web has a vacuum passage for drawing a vacuum, and a vacuum inlet plate connected to the vacuum passage. The vacuum inlet plate has an inlet edge defining at least part of an opening into the vacuum passage. The inlet edge has first and second angled edge portions that converge at first and second angles relative to the machine direction, respectively, to meet at a vertex portion. The vertex portion constitutes the rearmost portion of the inlet edge relative to the machine direction.

Abstract: An apparatus and method for automatically folding a sheet of media, for example, a photographic paper about a fold line, such that a album page is formed. The photosensitive media has images only on one side. A heat activated adhesive sheet is provided between the sides of the photographic paper during folding. The adhesive sheet when exposed to heated and pressure rollers, will cause the sides of the photographic media to be secured to form a single album page.

Abstract: A machine for treating sheets, said machine comprising drive means (14, 16, 18) for driving the sheets, treatment tooling (52, 62) for forming cutouts or folds in said sheets that extend transversely to the drive direction (F) in which the sheets are driven. The treatment tooling is carried by at least one carrier shaft (52, 62) driven by a shaft motor (M52, M62). The sheets are driven at a substantially constant drive speed through the machine, and said machine further comprises a control unit (UC) which, as a function of said drive speed, and of information relating to the position of a sheet in the machine, control the shaft motor (M52, M62) such that, for treating said sheet, the tooling is in contact with a predetermined region of the sheet and is driven at a treatment speed whose tangential component is equal to the drive speed at which the sheet is driven.

Abstract: The invention is a moveable presser rail assembly for supporting blanking material during operation of a blanking tool for making packaging blanks. The moveable presser rail assembly includes a mount housing having a cavity that pivotally secures a pivot sleeve, and a guide strut is secured within the pivot sleeve by a spring biasing mechanism so that a fastening end of the guide strut may be rigidly secured to a presser rail. Because the guide strut may pivot within the mount housing, the presser rail may be rigidly secured to the guide strut and still provide reciprocating and non-parallel or limited lateral motion relative to a support plate that supports the mount housing.

Abstract: An apparatus for machining a web-shaped workpiece includes a workpiece supply for supplying workpiece rolls each of an elongate thin metal sheet, a processing machine for machining the elongate thin metal sheet into caps, a workpiece feeder for feeding the elongate thin metal sheet to the processing machine, and a product feeder for automatically separating the caps from scrap and feeding the caps to a product collecting mechanism. The apparatus is capable of efficiently and quickly producing various products from the elongate thin metal sheet.

Abstract: A process and apparatus for forming three-dimensional containers from a continuous flat web of paper, coated paper, paper board, or laminated paper board ("paper") in which the paper is first scored to define the shape of the container and, thereafter, the scored stock is simultaneously cut and formed into a container. Containers so produced have improved uniformity. The apparatus is less expensive and easier to operate than conventional equipment, and it is easier to change from one style of tray to another. The apparatus also makes possible tray styles which could not be made with machines which cut and transfer paper blanks to a separate forming station.

Abstract: An elongated rubber ejector is mounted to a die board that forms a part of a cutting die and the ejector functions to engage cut corrugated board and eject the same from the cutting die. The rubber ejector includes upper and lower faces or surfaces with each face including a series of spaced apart raised lugs with a series of spaced apart voids or relief areas disposed between the lugs. Lugs and relief areas formed on one face are staggered with respect to the lugs and relief areas formed on the other face. In practice, the lugs are compressed during a die cutting operation. Once the corrugated board has been cut and the die board and an opposed anvil have been moved apart, the lugs and the ejector expand and in the process the rubber ejector engages the cut corrugated board and ejects the same from the cutting die.

Abstract: A presser assembly (10) is provided for supporting carton blanking scrap during a blanking operation. The presser assembly (10) includes a presser rail (114) having a first end (116) mounted to a guide cylinder (32) and a second end (154) mounted to a second guide cylinder (32) such that each end of the presser rail is vertically movable independent of the opposite end. This, in turn, prevents jamming of the presser assembly during the blanking operation.

Abstract: A resilient-scrap ejector is provided for a cutting die. The scrap ejector includes an elongated body made of a resilient material. The elongated body includes a longitudinally-extending web. A plurality of lugs extend from opposite sides of the web and are separated by notches. The notches provide void spaces which allow for deformation for the elongated body when the elongated body is subjected to compressive forces. The scrap ejector is located in a cavity or recess formed in the cutting die for ejecting and stripping scrap severed from the blank. By providing displacement zones or voids, the height of the scrap ejector can be increased without compressing the material beyond the limits of its resiliency.

Abstract: A waste stripping station for a machine for die-cutting plate-like workpieces includes a perforated board which is positioned between an upper movable tool and a lower movable tool for supporting a plate-like workpiece carried into the station by grippers. Waste bits of the workpiece are pinched between pins or elements of the upper and lower stripping tools and are carried vertically downward through perforations in the board. In order to provide clearance for the grippers, the perforated board is mounted to pivot around an upstream edge in order that its downstream edge may be lifted from a position allowing passage of the grippers to a position slightly lifting the plate-like workpiece.

Abstract: A presser assembly is provided for supporting carton blanking scrap during a blanking operation. The presser assembly includes a presser rail having a first end mounted to a guide cylinder and a second end mounted to a second guide cylinder such that each end of the presser rail is vertically movable independent of the opposite end. This, in turn, prevents jamming of the presser assembly during the blanking operation.

Abstract: As a substitute for a plastic so-called "jewel box" holder for a compact disc (CD), a holder entirely of biodegradable cardboard construction material (1) fabricated from a blank (2) delineated into panels (3) folded into a multi-ply configuration having a compartment for the CD (4) die-cut out of the configuration using a so-called "kiss cut" which provides the compartment sized and shaped to have the CD seated therein on a bottom compartment closure provided by one of the panels left intact using the "kiss cut" die-cut, such that the attributes and fabrication options of cardboard construction material are used to maximum advantage.

Abstract: A paperboard shaped into a profile substantially the same as that of a carton blank for folding into a carbon is formed with a plurality of first slits on an edge of the paperboard at a predetermined angle relative to the edge and with a plurality of second slits on the same edge at a predetermined angle relative to the first slits in such a manner that saw-teeth are integrally formed thereon. The saw teeth are immersed in a bath of a quick drying adhesive including .alpha.-cyanoacrylate to be impregnated with the adhesive and then dried, thereby forming teeth constituting a cutter on the carton blank. The carton obtained by folding the carton blank can be used as a packaging container for accommodating a roll of wrapping wed.

Abstract: An apparatus for the production of a device for detaching portions of a planer workpiece of cardboard used in the folding box industry. The workpiece contains at least one blank for a folding box and adjoining waste pieces which are removed from the plane of the workpiece by the device. The device is formed of a plurality of breaking out pins inserted into a breaking out plate, the pins corresponding in position to the positions of the waste pieces of the blank. The apparatus includes a pressing element for pressing each breaking out pin into the breaking out plate and a magazine device for feeding the pins to the pressing element. A guide piece is associated with the magazine device and the pressing element which acts to guide each pin from the magazine. The guide piece is provided in the feed path of the of the magazine and is provided with a recess for receiving each individual breaking out pin.

Abstract: In an apparatus for producing a device for detaching portions of workpieces in plate, sheet or leaf form, in particular sheets of cardboard which are used in the folding box industry and which each include at least one blank for a folding box or the like, and adjoining waste pieces, a plurality of individual breaking-out pins are to be releasably fixed at a radial spacing (e) from each other on an elongate conveyor member, at the path of movement of which is disposed a piston or the like pressure element which is directed substantially parallel to at least one of the breaking-out pins and which is adapted to be moved towards a breaking-out pin and which is guided substantially at a right angle to a breaking-out plate to be fitted with breaking-out pins, wherein the conveyor member passes between the piston and the breaking-out plate.

Abstract: A method and apparatus for producing blanks to form into cartons, boxes or the like from a continuous sheet, the carton having a substantially tubular shaped part which, in cross-section, has three or more sides, the blank including continuous, sequentially disposed portions which will provide carton side parts and flap parts at one or both of the ends of the tubular carton side part at some or each of the side parts, the ends of the tubular carton part being closed by the flap parts. A sheet or blank of required shape is produced using a fixture with a longitudinal extension that corresponds to the longitudinal extension of the tubular carton part and has a cross-sectional outer profile which corresponds to the cross-sectional profile of the tubular carton part.

Abstract: A cut and score die apparatus is provided for progressively converting a sheet of material into blanks. The apparatus includes a punching section for punching scrap material from the sheet of material to define an array of interconnected blanks arranged in a grid of rows and columns on the sheet of material. A scoring section is provided for simultaneously scoring a first predetermined pattern on a trailing portion of a first row of blanks and a second predetermined pattern on the leading portion of a second, succeeding row of blanks on the sheet of material. A blanking section is also provided for piercing the sheet of material in a predetermined pattern to cut blanks from the sheet of material without producing any additional scrap material.

Abstract: The present invention relates to a videocassette storage and display sleeve having identifying indicia thereon for use with or without the videocassette. The sleeve is convertible from its rectangular box-like original form to a flattened display form with portions removed and then back to its reformed rectangular form with an adhesively-attachable tab member to form a partial sidewall to form the reconstituted rectangular box or cover. The method of reestablishing the original cover by reforming the rectangular form is also disclosed.

Abstract: A downstacker assembly in which paperboard blanks, received from a die cutter station, are passed sequentially through a trim removal station, a feed station, a stacker assembly partially disposed in a pit, and a stack retrieval assembly. The stacker assembly is disposed in a drop chute beneath a vacuum conveyor assembly which drops the blanks from the feed station into the drop chute, assisted by a pair of twin blank striker assemblies which selectively separate the blank therefrom. The stacking blanks are tamped using a semiflexible tamper plate assembly against flexible curtains on a descending elevator assembly. A stack staging assembly serves as a temporary cradle to catch the falling blanks once a predetermined stack height is achieved until the stacks can be removed via the stack retrieval assembly. A dunnage holding assembly provides multiple-tier load forming as the stacks are discharged from the downstacker assembly.

Abstract: An improved downstacker assembly in which paperboard blanks, received from a die cutter station, are passed sequentially through a trim removal station, a feed station, a stacker assembly partially disposed in a pit, and a stack retrieval assembly. The stacker assembly is disposed in a drop chute beneath a vacuum conveyor assembly which drops the blanks from the feed station into the drop chute, assisted by an impacting assembly which selectively separates the blanks therefrom. The stacking blanks are tamped against flexible curtains on a descending elevator assembly. A stack staging assembly serves as a temporary cradle to catch the falling blanks once a predetermined stack height is achieved until the stacks can be removed via a stack retrieval assembly.

Abstract: A container is constructed from a paperboard sheet having a channel including a surface area of the paperboard sheet from which paperboard material has been removed and a tear strip at least partially bounded by the channel for opening the container by separation of the paperboard sheet along the channel.

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: Blanks (10) for producing folding boxes, etc., are severed from an advancing sheet (11), conveyed continuously, at a constant speed by first drawing rollers specifically by partial severing cuts (cutting lines 33, 34) supplementing one another and made in successive work cycles. The blanks (10) are severed from the sheet (11), with the exception of residual connections (35), and are separated completely from the sheet (11) by tearing as a result of a higher speed of additional drawing roller located downstream of the first rollers.

Abstract: An improved die cutting apparatus separates the gripper margin from the product portion and the releases the gripper margin from the gripper at the same station, i.e. at a pair of rolls. Further, the gripper margin is re-held and re-released at the pair of the rolls to prevent the gripper margins from becoming up with the product portions.

Abstract: A method and an apparatus for packaging paper rolls (2), wherein a wrapper sheet (1) of such a size as to exceed the axial length of the roll is wrapped around the roll and the width of the wrapper sheet is reduced to a size corresponding to the length of the roll by removing the part (5, 6) of the wrapper sheet which extends over the ends of the roll. The header sheet (14, 15) which is bigger than the end surface of the roll, is placed on the ends of the roll and reduced to a size corresponding to the diameter of the roll or smaller by removing at least the part of the header sheet extending over the end surface. Thereafter the header (14, 15) and the wrapper (25) are secured to each other so that a tight joint is formed.

Abstract: A device for processing a batch or stack of die cut sheets to sever the individual blanks into piles of blanks characterized by a lower frame supporting a fixed plate and a slidable plate, an upper frame movable relative to the lower frame supporting a fixed plate and a slidable plate, each of said fixed and slidable plates supporting a pair of transversely movable tables so that when a batch of die cut sheets is disposed between the movable tables and the upper frame is lowered, the movable tables can cause a separation of the blanks along two orthogonal directions. The device also includes a conveyor which is mounted in the frame for conveying the batch into the device and the piles out of the device with the conveyor being retracted as the upper frame is moved into clamping engagement with the batch of sheets.

Abstract: Improved blank-stripping apparatus for rotary die cutters of the type which have a die cutting roll, and an anvil roll for supporting paperboard blanks against a cutting rule on the die cutting roll, includes a rotary-cam-timed valve system pressure-actuating one or more pneumatic piston and cylinder assemblies within or adjacent the cutting rule for ejecting scrap radially from the cutting rule in synchronism with rotation of the die cutting roll; after scrap ejection the valve system vents pressure so that contact with a succeeding paperboard blank and/or spring bias easily retracts the plunger to position for pneumatic actuation in the succeeding cycle of operation.