Abstract: An apparatus for cutting tubes includes a counter holder arranged to receive a tube, having at least one cutting tool that is movable to a cutting position on the counter holder during a cutting process, having an ejector that ejects cut-off portions of the tube, wherein the ejector is movable relative to the counter-holder, having a slide that is movable along the counter-holder on which the at least one cutting tool and the ejector are provided, and having a programmable control for freely setting cut-off lengths of tubular sleeves by moving the cutting tool on the slide.

Abstract: Leading and trailing edge stitch tab scrap strippers utilize pivot arms which are secured to die block bodies for pivotable motion intermediate their two ends. One end of each arm is adapted to engage a stitch tab scrap portion to be stripped and to effect the removal of the tab scrap from a box blank from which it has been cut. A biasing force is applied against a second end of the pivot arm. The pivot arm is caused to pivot in response to the rotation of an upper male slotting head and a lower die cutting anvil. This pivotal movement is effective to strip or to eject the severed stitch tab scrap.

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: A presetting table for preparing a system of converting tools in a stripping station of a converting press positions the following face to face, in a position simulating cantering along the machine axis and positioning at the first rule: the stripper-holder plate of an upper stripping die, a central stripping board and a replica of a pull-out frame carrying telescopic pins. The upper stripping die is prepared by using the central stripping board as a template.

Abstract: A method and apparatus for mounting an ejector to a die board including an ejector retaining recess in the die board and a portion of the ejector retained in such base without glue.

Abstract: A presetting table for preparing a system of converting tools in a stripping station of a converting press positions the following face to face, in a position simulating centring along the machine axis and positioning at the first rule: the stripper-holder plate of an upper stripping die, a central stripping board and a replica of a pull-out frame carrying telescopic pins. The upper stripping die is prepared by using the central stripping board as a template.

Abstract: In the method for production of scored punched parts from a material sheet by a punching and scoring tool the formation of scores in the material sheet is started before the punching process is initiated. The punching and scoring tool has a carrier board, on the underside of which punching elements and scoring elements are provided, and a punching/scoring plate under the carrier board, in which scoring grooves are formed under the scoring elements. The scoring elements in an initial position, in which the scoring elements and punching elements are arranged at a distance from the punching/scoring plate, project further from the carrier board towards the punching/scoring plate than the punching elements. The scoring elements are also mounted flexibly on the carrier board in the lifting direction.

Abstract: The planar member for a stripping station for a machine for cutting sheet elements consists of a board which may be provided with openings if it is a stripping template, or if it is one of the upper or lower stripping boards is provided with working parts, on one surface and on an opposite surface is provided adjacent a downstream edge with a centering post and at least two mounting strips, an upstream edge of the member is provided with one or more mounting strips which strips protrude from the edges of the board and one of the sides of the board is provided with grasping handles. The planar member is mounted in a frame which has means for engaging the centering post and the mounting strips adjacent the downstream end so that the planar member is not subjected to warping.

Abstract: A resilient scoring rule for a rotary cutting die produces a creased or indented line in cardboard or paperboard along which line the board is subsequently folded when formed into a final product, such as a container. The scoring rule has a longitudinally extending, centrally disposed projecting web and opposed, cantilevered, symmetrical inwardly directed left and right ears having ends generally adjacent the central web. A pair of outwardly extending flanges raise the edge adjacent regions of the rule off the cutting die surface and function as mounting features which cooperate with staples or other retaining devices. An alternate embodiment scoring rule includes a pair of center projections or ribs flanked by a pair of cantilevered ears.

Abstract: An apparatus for manufacturing a wax dot comprising a housing enclosing a rotating drum. The drum has at least one hole in its surface for receiving a wax to form the wax dot. The wax dot apparatus further includes a wax channel in the housing to deliver the wax to the hole and a dispenser within the drum to eject the wax dot from the hole. When the hole in the drum is aligned with the wax channel, the dispenser is positioned away from the surface of the drum to allow the wax to fill the hole to form the wax dot. When the hole rotates away from the wax channel the dispenser gradually moves toward the surface of the drum to gradually eject the wax dot from the hole.

Abstract: A folding table for use in forming a third fold in a printed product, is provided with a plurality of detents that can be shifted into and out of the movement path of the product. Any accumulated paper remnants can be removed from the folding table when the detents, or selected ones of the detents are moved out of the product path. The method of operation of the device facilitates the elimination of production interruptions.

Abstract: The planar member for a stripping station in a machine for cutting sheet elements consists of a board which may be provided with openings if it is a stripping template, or if it is one of the upper or lower stripping boards is provided with working parts, on one surface and on an opposite surface is provided adjacent a downstream edge with a centering post and at least two mounting strips, an upstream edge of the member is provided with one or more mounting strips which strips protrude from the edges of the board and one of the sides of the board is provided with grasping handles. The planar member is mounted in a frame which has means for engaging the centering post and the mounting strips adjacent the downstream end so that the planar member is not subjected to warping.

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: The present invention provides an apparatus for producing at least two 4-page signatures (340) and an apparatus for producing at least one 16-page signature (460). The signatures are produced by folding and cutting sheets cut from a continuous web in a folding machine (500 or 600). The apparatus of the present invention provides a selectable blade device which folds or folds and cuts sheets being processed in the device. When placed in the fold and cut position, the apparatus is capable of producing at least two 4-page signatures (340) or at least one 16-page signature (460) without the need for a final off-line trimming step.

Abstract: A rotary pin stripper is disclosed for separating scrap pieces of paperboard from finish pieces after the pieces have been cut in a die cutter. In the preferred embodiment, the pin stripper cylinder is supported at mid-length, and the stripper cylinder is readily released for replacement and/or repair, while also providing for torque transmission between two separate, axially extending sections of the eccentric cylinder.

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 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: The common base of the comb-shaped clearing device is made of a shaft. Screws are provided for blocking pairs of parallel arms on a shaft in variable positions as a function of a longitudinal position of a series of points on the cutting cylinder (2). The two arms of each pair, which are symmetrical with respect to a symmetry vertical plane, have inner faces turned toward one another and formed in such a manner as to define therebetween an interval having a width which increases from front to rear.

Abstract: A container assembly which is especially adaptable to form a final presentation enclosure is constructed from a flat blank of material. The flat blank is provided with a plurality of fold lines forming a bottom wall, side walls, and top wall portions which act in conjunction with one another to enclose a space. The side walls are connected by joining portions constituting bellows-type folding members. The container is constructed in accordance with the normal hand movements of a person assembling it, wherein the joining members are initially easily folded inwardly thereby drawing up the respective side walls to which they are attached. The natural grasping movement of the hands is then used to complete assembly. The container does not utilize tabs, glue or other fastening means normally associated with a variety of containers. The top walls are formed so as to be exposed at the top of the container to allow securing of the top wall portions by any suitable means.

Abstract: The scrap ejector has a relatively long and thin body made of stainless steel or other resilient and durable material. The leading end portion of the body overlies and is secured to the outer surface of the die roll. In its undeflected condition, the trailing end portion of the body is spaced radially from the die roll. In one embodiment the body has a pad of compressible elastomer upon the surface thereof distal from the die roll, and in another embodiment the body has an arcuate portion projecting from the aforesaid surface of the body. During passage of the scrap ejector through the nip between the die and anvil rolls engagement between the anvil roll and the resilient pad (in the first embodiment) or the arcuate portion (in the second embodiment) deflects the trailing end portion of the body to a position wherein its terminal end is closely adjacent the surface of the die roll and the leading surface of the cutting rule which trims the leading edge portion of the paperboard stock.

Abstract: An improved forming block (10) is described for forming double packages including a liner enclosed within a carton. The forming block (10) includes a mandrel (12) having a free, open end (30) partially closed by an end piece (14). The mandrel (12) includes a hollow core (16) having a periphery around which the double package is formed. The mandrel (12) further includes a mounting bracket (18) which mounts the mandrel (12) in a cantilever manner to the forming machine and includes a hollow interconnecting portion (20). Ambient air is in communication to the interior of the core (16) by apertures (56) formed in the interconnecting portion (20). Air communication is also provided from the interior of the core (16) and the interior of the double package through apertures (76) formed in the end piece (14) and through vent holes (40) formed in the core (16) adjacent the open end (30).

Abstract: An improved adjustable rotary waste removal apparatus for removing and ejecting pieces of paperboard cut from a web of paperboard. The apparatus includes a pair of rollers, one of the rollers supporting many stripper pins and the other roller being a backup or anvil roller which supports the paperboard as the stripper pin passes through it. As the roller holding the stripper pins continues to turn, an internal off-center roller causes an ejection sleeve to move upwardly and remove the waste paperboard from the stripper pin. The improvement of the present invention relates to the adjustable mounting of the internal roller which moves the ejection sleeve outwardly so that the size of the roller supporting the stripper pins can be easily and quickly changed.

Abstract: An apparatus for stripping the scrap portion from a die cut blank includes a stripper pin carrier providing a pattern of stripper pins supported in a resilient compressible material layer in which the stripper pins are demountably embedded. The stripper pins may be inserted into the reslient layer to provide a pattern or patterns which will accommodate virtually any size, shape and location of scrap portions to be stripped from a blank. The stripper pins can be removed and reinserted in a different pattern to accommodate a different run of blanks of corrugated paperboard or the like. Programmable robotic control may be used for pin placement and removal. The stripper pin pattern, location and rotation are synchronized with operation of the upstream cutting die such that the die cut blanks move continuously under the stripper roll for automatic scrap stripping.

Abstract: An apparatus for stripping the scrap portion from a die cut blank includes a stripper pin carrier providing a pattern of stripper pins supported in a resilient compressible material layer in which the stripper pins are demountably embedded. The stripper pins may be inserted into the resilient layer to provide a pattern or patterns which will accommodate virtually any size, shape and location of scrap portions to be stripped from a blank. The stripper pins can be removed and reinserted in a different pattern to accommodate a different run of blanks of corrugated paperboard or the like. Programmable robotic control may be used for pin placement and removal. A unique positive stripping apparatus includes a resilient soft-covered roll beneath the blank at the point of stripping and into which the leading edge of the scrap portion is pressed by the stripper pins on the upper rotary pin-carrying roll.

Abstract: Method and apparatus for preventing the curling of a composite material having a fluid permeable base and a fluid impermeable outer surface in a manufacturing operation wherein a continuous sheet of the composite material is moved in incremental amounts through a cutter-creaser apparatus to have carton blanks formed therein wherein the curling is prevented by forming a curtain of air under pressure to apply downwardly directed forces on the fluid impermeable surface during the incremental movement of the continuous sheet through the cutter-creaser apparatus and the forming of the carton blanks.

Abstract: A method and machine for forming a case with polygonal section from a blank of sheet material. There is an assembly of panels. The assembly of panels is wound about a mandrel with polygonal section. The tongue is fixed to the free edge of the endmost panel. The flaps situated on the same side of the panels are folded. The flaps thus folded are fixed together.

Abstract: An improvement for use in machinery for interfolding porous cut sheets is disclosed having two adjacent and counter-rotating folding rolls each having projecting tuckers and recessed grippers arranged alternately on the folding rolls such that a tucker on one roll mates with a gripper on the other. Porous cut sheets are selectively adhered to the folding rolls by vacuum ported to the tuckers and grippers.

Abstract: An arrangement for the retaining of container blanks (1) in a predetermined correct position on mandrels on a packing machine of the type which manufactures filled and closed packing containers from tubular container blanks and which comprises a stepwise rotatable mandrel wheel which is the bearer of mandrels distributed around the mandrel wheel which are intended to move container blanks applied to the mandrels in correct position between successive processing stations so as to achieve a bottom closure of the blanks. The arrangement comprises clamping elements pressed against the mandrels in the form, for example, of a lever which is adapted to be pivotable in a bracket at one lateral surface of the mandrel. The mandrel includes an upper clamping arm pressed against the mandrel and a lower maneuvering arm rigidly connected with the clamping arm as well as a spring element arranged at the top of the clamping arm (14).

Abstract: There is disclosed a bag making machine for producing bags from an elongate strip of plastic web material. The disclosure relates to various improvements in the bag making machine such as the apparatus for cutting the bag handle aperture. The apparatus includes at least one circular cutting blade having a plunger movable relative thereto within its cutting periphery. The plunger includes a web piercing member on its leading face which member positively holds the web material relative to the cutting blade and plunger.

Abstract: An apparatus which produces a precisely shaped and positioned perforated line in a blank for a parallelepipedic package has a blade and a roller for pressing the blank against the blade. The blade is stationary relative to the packaging blank and provides a perforated line which does not penetrate the inner layer of the packaging material. The roller is mounted on a connecting bar which is linked to a reciprocating drive. The roller moves in a guide which positions the roller relative to the blade during each stroke of the reciprocating drive.

Abstract: The disclosure illustrates and describes a sterilization apparatus and method for sterilizing the interiors of paperboard containers, wherein such apparatus and method are effective through the mandrel assembly on which the container bottom closures are formed and sealed. This is accomplished by forming longitudinal channels through each mandrel and connecting same to separate compartments formed within the hub, and providing means for communicating a suitable sterilant fog through respective compartments and channels at the station where each bottom-formed container is stripped from its respective mandrel. The usual fast stripping action tends to create a vacuum within the container which aids the dispersement of the fog onto the entire inside surface of the container, sterilizing it prior to the subsequent filling operation.

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: Disclosed is a method and apparatus for producing handle bags made of thermoplastic web material by transporting segments of gusseted web to a cutting device that removes a generally rectangular portion of material to produce at least one style of a bag with handle portions that can be either gripped by hand or receive a forearm of a user. Moreover, there is disclosed apparatus for folding and collecting the bags so produced.

Abstract: A punch for a cutting die is provided for forming holes in corrugated board or the like. The hole punch includes a tubular metal member of circular transverse cross section having one end substantially flush with the back surface of a die plate in which it is mounted and the other end extending beyond the front surface of the die plate and terminating in a circular cutting edge. A body of resilient material, such as natural gum rubber or latex, is located within the cylindrical member and has one end terminating near the back end of the tubular member and another end terminating near the cutting edge of the tubular member. The purpose of the body is to eject and strip the scrap of corrugated board from the punch and from the rest of the blank being formed by the cutting die. The resilient body has a central, cylindrical passage extending completely therethrough, in a preferred form.

Abstract: The present invention relates to improved apparatus for forming a tubular plastic sleeve immediately prior to its application to a rigid base article, such as a glass or plastic bottle. A rectangular blank of plastic material is wrapped around a cylindrical mandrel and seamed lengthwise thereon to form the tubular sleeve. The mandrel has a plurality of spline-shaped grooves in its curved peripheral surface and a stripper ring mounted to closely surround such peripheral surface to be slidable thereon. The ring has a plurality of internal lugs which slidably fit within the spline-shaped grooves. The mandrel has a lineal array of vacuum ports for retaining the leading and trailing edges of the plastic blank on the mandrel for its wrapping thereon, and an axial resilient strip mounted in the curved peripheral surface of the mandrel for operation of a movable, axially-extending sealing bar thereagainst.

Abstract: This relates to a bag forming machine wherein a continuous tube is formed from a contuous web, the tube having a side seam and being cut off at predetermined intervals to form short tubes with closed bottoms. The tubes are placed on mandrel assemblies of a turret and the mandrel assemblies, as the turret is indexed, are actuated so as to axially elongate the closed tubes while holding the open end of each tube against movement, thereby generally forming a flat bottom on the tube and triangular bottom portions. The turret is next indexed so as to plow down the triangular bottom portions flat against the flat bottom portion followed by further indexing of the turret to heat seal the triangular positions to the flat bottom portion and then cool the heat seals. Finally, each closed bottom bag is gripped by a combined rotator and orientation device wherein the side seam of the bag is rotated to a selected orientation.

Abstract: Cooperating top and bottom die assemblies for use in a press to fold the edges of a non-rigid workpiece. The top die comprises a horizontal support plate having a radiused folding plate affixed to its underside. A spring biased stripper in association with the support plate is shiftable vertically relative thereto between a retracted position and a normal extended position below the radiused folding plate. The top die assembly support plate has a plurality of upstanding support posts on its upper surface together with means to affix the top die assembly to the upper platen of the press with the free ends of the upstanding support posts in abutment thereagainst. The bottom die assembly comprises a horizontal base plate adapted to rest on the bottom platen of the press. The base plate has a first set of downwardly depending hollow posts mounted on its underside to either side of the press bottom platen.