Abstract: A device for cutting to shape advancing material webs, in particular made of fibrous materials, comprises a rotatingly driven shape cutting roller and a rotatingly driven counter cutting roller. The shape cutting roller has a shape cutting edge and the counter cutting roller a smooth cylinder surface. Both rollers are mounted in a machine frame by means of pivot bearings, and the distance between the axes of the rollers is adjustable. The rollers are rotatably mounted in separate, first and second machine frame parts which, for their part, are supported on a common machine base. One of these machine frame parts is held on an adjustable wedge-shaped guide means for adjusting the distance between the axes of the rollers. Each machine frame part is adapted to be secured separately on the machine base.

Abstract: A method for the self-protection of an aircraft or the like against radar-guided missiles and a self-protection device for use in aircraft and the like against radar-guided missiles, which enables in-flight cutting and dispensing of chaff dipoles of a preselected length into the airstream along the flight path of the aircraft. The device comprises a housing enclosing a motor having a flywheel providing a motor inertia that enables the motor to maintain a substantially constant rotational speed when a load is applied, a magnetic clutch, gearing for rotating a platen roller and a cutter roller, as well as means for controlling the operation of the device, and an exit opening with a spoiler for dispensing the cut dipoles into the airstream.

Abstract: Apparatus for producing sample parts arranged in an array on a base sheet. The apparatus includes a roller about which webbing of the sample material is drawn, the webbing being severed to form the sample parts and to transport the sample parts to a transfer station. Needle take-down apparatus at the transfer station engages the sample part with a plurality of retractable needles to moving the sample parts to a base sheet.

Abstract: A quick change cassette hole punch unit for punching business forms allows the punch cylinder to be changed in a simple and effective manner. The cassette includes a frame having side members and a top member, and an anvil cylinder mounted on an anvil shaft for rotation about an axis stationary with respect to the frame, and a drive gear also mounted on the anvil shaft. A punch cylinder shaft is mounted on bearing assemblies for reciprocal movement with respect to the frame side members upon rotation of a screw shaft associated with each bearing assembly. The punch cylinder shaft can be disconnected from one of the bearing assemblies, slit with respect to the bearing assemblies to expose a free end, and the punch cylinder mounted on the punch cylinder shaft moved off the free end and replaced. All associated drive gear for the punch cylinder shaft is also replaced at the same time.

Abstract: A device for extracting samples from a folder, includes a cutting cylinder pair including a blade cylinder and a grooved cylinder, the blade cylinder having at least one cutting blade mounted on the periphery thereof, the grooved cylinder having at least one groove bar, a respective holding device for signatures assigned to the groove bar, conveyor tapes for conveying signatures emerging from a nip between cylinder and the grooved cylinder of the cutting cylinder pair to a signature delivery and to a conveyor unit assigned to the cutting cylinder pair, and a device for remotely controlling the holding devices.

Abstract: A chopper has a rotatable cutting tool provided with a plurality of cutting teeth, a stopping body having a surface which faces the cutting teeth and guides the chopping product. The surface extends substantially in an axial direction of the cutting teeth and is arranged at a distance from the cutting teeth. The cutting teeth during a cutting process are in operative connection with the chopping product. A rotatably supported pressing roller which is arranged in a distance-free manner relative to the cutting tool and forms a gap between the pressing roller and the cutting tool, while the stopping body having a working side which extends in the gap between the pressing roller and the cutting tool.

Abstract: A rotary cutting assembly is provided for cutting a panel from an envelope blank or the like. The die holder has an outer surface and a plurality of surface orifices radially communicating with corresponding feed tubes for supplying vacuum or air to the surface and into the vicinity of the envelope blank. A novel air delivery assembly is provided for delivering vacuum and/or air to the die holder comprising a stationary plate disposed at least at one end of the die holder and defining a groove member for selectively supplying vacuum and/or air so that when rotation of die holder aligns the longitudinal feed tubes with the groove member a supply of vacuum or air is selectively supplied at the surface orifices of the die holder. Another embodiment of the die holder may have an outer surface having a extending along the longitudinal axis for detachably receiving the leading end of the cutting die and a plurality of magnetic members disposed in the die holder surface for attracting the cutting die.

Abstract: In a rotary press cutter for the production of envelope blanks, a flexible foil cutting die (8) is used. The leading edge of the foil cutting die (8) is anchored against a leading face (20) of the rotary punching roller (10), and the trailing portion of the foil cutting die (8) extends without creasing over a rounded outer portion of the blade anchorage slot, to be held against the outer periphery of the punching roller (10) by magnetic attraction from inset magnet means (15). The leading edge of the foil cutting die is preformed to provide a location and anchorage flange (24) which is bent without creasing to an obtuse angle to the remainder of the foil, with a radiussed junction between the flange (24) and the remainder of the foil. A unique structure of the magnet means (15) provides very strong adhesion of the body of the foil cutting die (8) to the punching roller (10).

Abstract: There is disclosed an apparatus and method for bonding a sheet material to an elongated base material, in which the sheet material is transferred by a transferring device towards the base material, and the sheet material is bonded by a bonding device to the base material. A static electricity generating device is attached to the bonding device for generating static electricity on the sheet material to cause the sheet material to adhere to the bonding device, so that the sheet material is prevented from falling from the bonding device prior to the bonding step. Furthermore, an apparatus and method for manufacturing a flexible flat cable, applying the above bonding apparatus and method is also disclosed. In this apparatus and method, a pair of insulating tape sheets are transferred towards electric conductors.

Abstract: A cutter has a roller body which is made from a hollow profile-like inner part and a tubular profile-like outer part having an irregular cross-sectional shape. The outer part and inner part are such that the working flight circle of a tool on the body is approximately as near to an axis of rotation as the maximum outer circumference of the body. Apart from forming a mold core for the outer part, the inner part also forms a clamping body, and includes a supporting body and a balancing counterweight for the tool unit, thereby providing a very high cutter block strength, and at the same time, a low mass moment of inertia.

Abstract: A cutting die for cutting materials is provided. A die sheet having opposing front and back die sheet surfaces is provided. At least one cutting edge defining a die pattern is formed extending outwardly from a portion of the front sheet surface. A spacer abutment extending outwardly from a portion of the back surface of the die sheet is also provided. The spacer abutment is disposed in alignment with the cutting edge. A pressure surface is provided for applying the die sheet to the materials. An abutment surface of the spacer is abutted directly against the carrier surface in order to dispose the cutting edge a predetermined distance from the pressure surface. Cavities formed between adjacent abutments may be filled with an adhesive material in order to secure the cutting die to the pressure surface. The cutting die may be flexible and may be adhesively secured to a cylindrical die carrier.

Abstract: An equalizer assembly that integrates into the die cutting station of a press and comprises two hydraulic actuators, each of which interacts with one of the jackscrews of the press to create an internal hydraulic pressure. The internal pressure of a first of the hydraulic actuators corresponds to a loading force that is imparted upon the rotary cutting die proximate to a first end of the rotary cutting die, and the internal pressure of a second of the hydraulic actuators corresponds to a loading force that is imparted upon the rotary cutting die proximate to a second end of the rotary cutting die. The hydraulic actuators are in fluid communication with one another such that the hydraulic pressures therein are maintained substantially equal to define an overall system hydraulic pressure, and the hydraulic actuators are designed and arranged so that the loading forces generated thereby are substantially equal.

Abstract: A cutter for cutting a continuous corrugated strip includes a feed gear, on the outer circumference of which a tooth portion engaging with a continuous corrugated strip such as a corrugated fin used for a radiator is provided, wherein a tooth cutout portion is formed in the feed gear. In a cavity formed in the feed gear, a first cutting blade unit rotated around an eccentric center is accommodated. When a first cutting blade radially provided in the first cutting blade unit is projected from the tooth cutout portion, the first cutting blade comes into contact with a second cutting blade provided outside, so that the continuous corrugated strip can be cut.

Abstract: A die roll and air manifold system comprising a rotary die roll rotatable in a press, and an air manifold having a cylindric body positioned in a central bore in the die roll. The cylindric body of the air manifold has an outside diameter only slightly less than the diameter of the bore. A pair of shafts extend coaxially from opposite ends of the cylindric body beyond respective ends of the die roll for mounting of the air manifold and die roll on a press. The manifold shafts have outside diameters less than the diameter of the central bore in the die roll and less than the outside diameter of the cylindric body of the air manifold. Axial passaging in the air manifold is provided for connection at its inlet end to a source of pressurized air. One or more air outlet passages in the body of the air manifold extend from this axial passaging to the outer surface of the manifold body.

Abstract: A device for extracting samples from a folder, includes a cutting cylinder pair including a blade cylinder and a grooved cylinder, the blade cylinder having at least one cutting blade mounted on the periphery thereof, the grooved cylinder having at least one groove bar, a respective holding device for signatures assigned to the groove bar, conveyor tapes for conveying signatures emerging from a nip between the blade cylinder and the grooved cylinder of the cutting cylinder pair to a signature delivery and to a conveyor unit assigned to the cutting cylinder pair, and a device for remotely controlling the holding devices.

Abstract: The apparatus according to the invention comprises a cutting wheel (1) provided with a multiplicity of cutting knives (3) disposed in a circle in a knife mount (2) and spaced apart at predetermined distances corresponding to the desired staple, at least one pressure roller (4) for producing on the wound material in sliver or strand form a cutting pressure acting on the cutting knives (3), an opening and closing device (5) by means of which the pressure roller (4) can be moved a predetermined distance away from the cutting wheel (1) or towards the cutting wheel (21), an adjusting member (6) by which a preset distance can be adjusted between the pressure roller (4) and the cutting knife (3) lying nearest to said pressure roller (4), a damping means (7) by which, in conjunction with the adjusting means (6), the contact pressure exerted by the pressure roller (4) on the material in sliver or strand form lying on the knives (3) can be so adjusted that the cutting power of the apparatus remains practically unchange

Abstract: There is disclosed an apparatus and method for bonding a sheet material to an elongated base material, in which the sheet material is transferred by a transferring device towards the base material, and the sheet material is bonded by a bonding device to the base material. A static electricity generating device is attached to the bonding device for generating static electricity on the sheet material to cause the sheet material to adhere to the bonding device, so that the sheet material is prevented from falling from the bonding device prior to the bonding step. Furthermore, an apparatus and method for manufacturing a flexible flat cable, applying the above bonding apparatus and method is also disclosed. In this apparatus and method, a pair of insulating tape sheets are transferred towards electric conductors.

Abstract: Apparatus for producing sample parts arranged in an array on a base sheet. The apparatus includes a roller about which webbing of the sample material is drawn, the webbing being severed to form the sample parts and to transport the sample parts to a transfer station. Needle take-down apparatus at the transfer station engages the sample part with a plurality of retractable needles to moving the sample parts to a base sheet.

Abstract: A web cutter includes a knife roll located above an anvil roll, a web infeed conveyor for moving a continuous web to be severed to the nip between the rolls and a segment discharge conveyor for removing segments cut from the web. The roll includes a plurality of fixed cutting knives and the anvil roll includes a plurality of fixed anvils such that rotation of the rolls brings each knife into engagement with an anvil to sever the web. Lift plates on the anvil roll are located immediately upstream from each anvil to raise the severed lead end of the web above the anvil in order to assure proper feeding to the discharge conveyor.

Abstract: A package made of cardboard and a process and an apparatus for producing the package are disclosed. For various reasons it is required to form projections (10), stops etc. in pack panels of packs made of (thin) cardboard. To support a collar (13) which is located in the box part (11) of a hinge-lid pack, projections (10) are disposed at the side panels (17, 18). These projections are formed from a transversely directed punch cut (21) and a convexity which adjoins this punch cut and is made by shaping the material (cardboard). A projection (10) which is designed in this manner is produced in a single working step by punching and shaping (embossing) with the aid of an appropriate tool (punching piece 24) in conjunction with a counter tool (counter roller 28) during the continuous transport of a blank.

Abstract: A slit forming apparatus consists essentially of a rotary blade assembly, a rotary backing roller, and pressing projections. The rotary blade assembly contacts with or abuts against a strip-shaped material travelling over the rotary backing roller and then penetrates said material to form slits in it. The backing roller has banks for holding the strip-shaped material pressed by the rotary blade assembly, and also has grooves for receiving the blades of the rotary blade assembly when they penetrate the strip-shaped material. The pressing projections provided at opposite side ends of the assembly prevent the undersired movement of said material in the lateral or longitudinal direction. With this apparatus, substantially defect-free satisfactory slits are formed in the strip-shaped material.

Abstract: The apparatus comprises, between each pair of upper and lower bearing blocks, a shim or strut which provides a support for two bearing blocks on one another. Each of the upper bearing blocks is extended, in an upper portion and toward an inside of said apparatus, by a cantilevered portion subjected to action, in a downward direction, of a pressure exerting vertical jack mounted in an upper portion of said apparatus. A vertical and transverse plane containing a central axis of each pressure exerting vertical jack is situated between a vertical and transverse plane in which is situated a shim or strut placed between the bearing blocks and a vertical and transverse plane of raceways for an upper cutting cylinder and a lower cutting cylinder.

Abstract: A punching and perforating cylinder and a die and anvil cylinder are part of a computer paper processing system producing the line holes and the cross perforation in a continuous paper web. The PUNCH/PERF cylinder is mounted on an upper shaft, while the DIE/ANVIL cylinder is mounted on a lower shaft. The upper and lower shafts are rotatably engaged by a set of gears. At both ends of the PUNCH/PERF cylinder, holes are located to accept the PUNCHES. At both ends of the DIE/ANVIL cylinder, holes are located to accept the DIES. While the two cylinders are rolling together, the punches engage with the dies and form the punched line holes in the continuous paper web. The PUNCH/PERF cylinder has longitudinally formed slots, providing the space for the cross perforating blades and for the cross perforating blade clamping bars. The DIE/ANVIL cylinder has longitudinally formed slots, providing the space for the hardened anvil bars.

Abstract: Method and apparatus for fabricating a perforated film comprising the steps of pinching a film material, (3) between a cutter roll (1) with cutting edges (12) and a backing roll (2) to press the cutting edges (12) to the film material (3) and driving, to rotate least one of the cutter roll (1) and the backing roll (2), to form holes such as slits in a film material. The apparatus is decelerated by a stop command signal of an apparatus, detecting the speed of the apparatus attaining a predetermined small speed, generating an advance stop signal when the apparatus is approaching a stop a condition, and displacing the backing roll (2) so that the cutter roll is separated from the backing roll.

Abstract: A cutting anvil assembly for use in butt cutting applications typically used in connection with self-adhesive label stock. The cutting anvil is ground to a precise outer diameter against which cutting blades of a precise height are secured by means of trapezoidal blocks. Rapid and simple changes of cutting blades are accomplished by simply setting the blade in place against the anvil and securing the blades in place between alternately semi-permanent and removable blocks. Adjustments of cutting depth to accommodate stock with different weight backings are also accomplished quickly and easily by positioning shims beneath the blades.

Abstract: A device for extracting samples from a folder, includes a cutting cylinder pair including a blade cylinder and a grooved cylinder, the blade cylinder having at least one cutting blade mounted on the periphery thereof, the grooved cylinder having at least one groove bar, a respective holding device for signatures assigned to the groove bar, conveyor tapes for conveying signatures emerging from a nip between the blade cylinder and the grooved cylinder of the cutting cylinder pair to a signature delivery and to a conveyor unit assigned to the cutting cylinder pair, and a device for remotely controlling the holding devices.

Abstract: A rotary cutting die assembly is comprised of a support roll having a cylindrical exterior surface with a first axial slot formed in the exterior surface and extending a first depth into the support roll, and a second axial slot formed in the exterior surface adjacent the first slot and extending a second depth into the support roll, the second depth being less than the first depth. A cutting blade, shim and lock-down bar are received in the first slot of the support roll. The lock-down bar supports a plurality of set screws oriented at an acute angle relative to the cutting blade. Tightening the plurality of set screws in the lock-down bar causes the set screws to urge the cutting blade and bar apart from each other and into friction engagement against the opposite sidewalls of the first slot, thereby securing the cutting blade and mounting bar in the first slot.

Abstract: Apparatus for cutting web material in which blade and anvil rolls cooperate, the blade roll having a slot in which a blade-equipped bar is mounted and equipped with springs for exerting both generally radially outward and generally circumferentially resilient forces on the bar and blade and in which friction means are operably associated with the blade for inhibiting axial movement of the blade.

Abstract: Apparatus for cutting which involves the adjustment of height of the cutting blades in a rotating cylinder through the use of cooperating tapered surfaces on two components of a blade supporting bar.

Abstract: A rotary cutting die assembly comprised of a mandrel adapted to be rotatably mounted in a rotary die cutting press, and a cylindrical cutting sleeve and drive gear slip fit over the mandrel, provide a method and apparatus for replacing the cutting edge of a rotary cutting die at a reduced cost for materials, manufacturing and shipping than that associated with conventional rotary cutting die replacement.

Abstract: A rotary cutting device for material webs consists of a machine frame with rollers supported in pivot bearings on the machine frame, driven by rotary drives and defining a cutting range, namely a cutting roller and a counter cutting roller, which form a roller gap for feeding the web material between them within the cutting range. The cutting and counter cutting rollers are supported so as to roll directly one over the other using spacing rings located outside the cutting range. At least one of these rollers engages at least one adjustable pressure roller link bar between the spacing rings so that the link bar presses one roller against the other roller with an adjustable force.

Abstract: In a device for cutting strip material as used in automatic wrapping machines, including transverse and longitudinal cutters by use of which the continuous strip is divided up into individual wrappers, the two cutters operate in conjunction with a reaction element serving additionally to support, retain and convey the strip in such a way that the material remains in a correct feed and cut position at least during its passage through the device. To advantage, a single reaction element can be utilized with the two cutters, and in the event that these are conventional, the first with a straight transverse blade and the second with a circumferential blade, the reaction surface is provided by a cylindrical roller.

Abstract: A knife cylinder for processing weblike material has at least one slot in its cylindrical surface for receiving a web cutting/perforating knife retained in place by a plurality of pressure medium cylinders distributed over the length of the knife. A rigid wall within the slot limits the extent of the pressure cylinders, and push rods extending through the wall may be provided for transferring pressure from the pressure cylinders to the knife.

Abstract: A radially adjustable anvil roll assembly for use in a die cutting cylinder of a rotary die cutting press is comprised of a cylindrical sleeve having an internal bore, a shaft extending longitudinally through the internal bore of the sleeve and supporting the sleeve for rotation thereon, and an adjustable bearing assembly having pluralities of bearer rolls that engage in rolling engagement with an exterior surface of the anvil sleeve and adjustably position the anvil sleeve radially on the shaft, thereby adjusting the radial spacing between the cutting edges of the die cutting cylinder and the anvil surface of the sleeve.

Abstract: An improved device for cutting a single or multiple-layer continuous web is equipped with a closed-loop, fan-driven air system to "push" air onto the leading edge of the continuous web and "pull" air from about the knife edges to capture the waste material produced by the removal of blank portions. Chambers in the knife roll assembly direct positive air pressure continually to the leading edge for reliably guiding the web into subsequent machinery. Additional chambers direct suction to the waste material at the cutting operation to restrain the waste material within the knife roll assembly for most of the rotation of the knife assembly and to transport waste material to a disposal system including a cowl, which is maintained at a substantially greater suction.

Abstract: A fabricated clamp bar that goes into a channel in a machine roll to hold a knife, anvil, or other tool in the channel. The bar has an internal cavity or chamber in one side of the bar. The chamber has an exposed movable outer side wall placed at the side of the machine roll channel. When the internal cavity or chamber is pressurized with a non-compressible fluid such as grease, the movable side of the chamber is forced outward causing the bar to expand in width, causing the clamping side of the bar to trap the tool to be held in the roll against the side of the channel in the roll of the machine. Also disclosed is the use of an intermediate buffer block between the clamp bar and tool to be held in the roll. Spring loaded members may lightly clamp and pre-position the tool via strategically located holes at each end of the tool until pressure is applied to the fluid.

Abstract: The invention relates to a knife roller with at least one film knife which s securable on a multi-part roller body, which comprises suction openings around its circumference, and connected thereto, suction channels extending in the lengthwise direction. The gist of the invention is that:a) suction openings are provided along several suction hole rows arranged next to one another in the circumferential direction,b) one suction channel is arranged to correspond with each suction hole row, andc) at least one suction air control channel and at least one adjustable suction air control disk are provided,d) by means of which the suction air control channel is selectively connectable with different suction channels, suction hole rows, and their suction openings.

Abstract: An apparatus for transporting a web in a printing press comprises a pair of cutting cylinders for cutting web sections from the web, and a transporting device for transporting the web sections away from the cutting cylinders. The first cutting cylinder has at least one cutting anvil, and the second cutting cylinder has at least one cutting knife which meets the cutting anvil at a nip between the cutting cylinders to cut the web moving through the nip. A plurality of strips are supported on the first cutting cylinder and a plurality of strips are supported on the second cutting cylinder. The strips have positions on the cutting cylinders in which they impress a temporary reinforcing profile onto each newly formed leading portion of the web when the strips move through the nip. At least one smoothing surface is supported on the first cutting cylinder and at least one smoothing surface is supported on the second cutting cylinder.

Abstract: Sheet cutting apparatus for severing a rapidly-moving web, such as printed paper, into cut sheets in two stages. In the first stage, spaced cuts are made along a transverse cutting line of the web. The web is trained between belts which support the cut portions of the web, and the uncut portions of the web are severed to separate sheets. The sheets are conveyed out of the cutting station and into further apparatus. Preferably, the belts for supporting the web during the second cutting operation are trained around the knife and anvil rolls which make the cuts. The purpose of the belts is to prevent the leading edge of the web or a cut sheet from being projected forward of its support, thus tending to become dog-eared or misfed. The cuts made at the first and second cutting stations can be arranged in various patterns to remedy mis-timing of the respective cutting stations.

Abstract: A cutting device for materials such as gauze is provided by a circular knife having a cutting edge suitable for making an incision in several sizes of swabs. The knife is rotatable in correspondence with a succession of swabs moving along a path. The swabs have a folded edge in a direction of movement. A counter roller is elastically biased against the knife and disposed for passage of the moving swabs therebetween. A Y-shaped incision extending from the folded edge is made in the moving swabs by the knife.

Abstract: Apparatus and method for cutting web material in which blade and anvil rolls cooperate, the blade roll having a slot in which a blade-equipped bar is mounted and equipped with springs for exerting both generally radially outward and generally circumferentially resilient forces on the bar and blade.

Abstract: A radially adjustable anvil roll assembly is provided for use with a die cutting cylinder of a rotary die cutting press. The adjustable anvil roll assembly comprises a shaft mounted for selective and intermittent rotation on the press, and a pair of eccentrics provided on an intermediate portion of the shaft. A hollow cylindrical sleeve is mounted for free rotation on the shaft eccentrics. Rotating the shaft so that the maximum eccentricity of the eccentrics is directed toward the die cutting cylinder adjustably positions the cylindrical sleeve in its closest adjusted position toward the cylinder. Rotating the shaft 180.degree. so that the maximum eccentricity of the eccentrics is directed away from the die cutting cylinder adjustably positions the cylindrical sleeve in a radially adjusted position furthest away from the die cutting cylinder.

Abstract: The invention relates to a device for reducing the thickness of an edge (2) of a board web (3) or board sheets, comprising a cutting blade (1); and structure for supporting, positioning and rotating the cutting blade and for guiding the edge (2) to be thinned with respect to the cutting blade (1). To provide a mechanically simple device construction of good adjustability, the cutting blade (1) is disclike; and the edge guide comprises a lower roll (4) and structure (5) for tightening the edge to be thinned against the lower roll.

Abstract: An EDM machine in combination with a wire sectioning device. The wire sectioning device has two rotating members consisting of a rotating member 2 having an anvil 16 and a member 3 rotating in the opposite direction. The rotating member 3 has four cutting blades made of a tough material such as tungsten carbide or tungsten nitride. At least one of the anvil and the tool possesses a low moment of inertia to improve the longevity of the sectioning means.

Abstract: There is provided a method and apparatus for maintaining the cutting conditions constant at a rotary punch by bringing the rotary punch to a constant, predetermined temperature and maintaining the rotary punch at that temperature. Tempering elements are included in the rotary punch so as to maintain constant and set the spacing of the cylindrical envelope described by the cutting edge or edges from the opposing tool.

Abstract: A chopper having a feed mechanism for strands of continuous materials such as glass filaments includes an outer rotatable ring which receives and supports a plurality of radially oriented blades and an inner rotatable feed and pressure wheel disposed eccentrically within the outer ring. The ring and wheel are driven synchronously by a common drive unit such that the tangential speeds of the blade faces and pressure wheel are equal. The pressure wheel is positioned adjacent but not coincident to the circle defined by the inner faces of the blades. Continuous strands of material are provided to the chopper and a two position roller feeds the material to the feed and pressure wheel when its linear speed matches the tangential speed of the blades and wheel. The wheel directs the strands to the faces of the blades upon which the strands build up. As the thickness of the strands on the face of the blades increase, the wheel forces the strands further into the blades thereby cutting them.

Abstract: A rotary die cutter includes an anvil roll and at least one die roll. One or more sheet metal dies with raised cutting edges are carried on the die roll to cut patterns in a web of material passing between the die and the anvil roll. The die cutter has a pair of rigid side frames spanned by a very rigid spreader. While the anvil roll is end-mounted between the side frames, the die roll is mounted from the spreader. A drive shaft rotatable in the side frames and driven from a lineshaft by a gear system transits rotation to the die roll, while allowing the die roll freedom of movement for independent vertical, axial and circumferential adjustments. This mounting and drive of the die roll can accommodate a full width press web using die rolls having a small diameter, typically a single repeat roll, and one whose length is comparable to its circumference. A pair of mutually slidable wedges acting against a spring clamping force adjusts the vertical position of bearing blocks that rotatably mount the die roll.

Abstract: A pouch perforator for a form, fill and seal packaging machine of the type which forms pouches from continuous film includes a cutting element and a support element. The cutting element is rotatively mounted on the packaging machine as is the support element with the cutting element located on one side of the film and the support element located on the opposite side of the film. The cutting element includes a plurality of axially extending knife edges located in a circumferentially spaced array. The knife edges rotate in response to rotation of the cutting element. The support element includes a circumferentially extending support surface which rotates in response to rotation of the surface element. The knife edges in response to rotation of the cutting element compress film against the support surface to perforate the film.

Abstract: The invention relates to an apparatus for the removal of areas of material punched out from a material in sheet form by projecting, closed punching edges on the circumferential surface of at least one rotating punching cylinder by means of compressed air, which is fed into the punching cylinder and led out from the punching cylinder through outlet openings lying within the closed punching edges, wherein the compressed air from an opening in a side face of a member at least partially embracing the punching cylinder in a guided manner is fed to inlet openings assigned to the outlet openings, which inlet openings are located in a side face of the punching cylinder closely adjacent to the side face of the member.

Abstract: Apparatus particularly suited for cutting continuously moving thermoplastic film such as linear low density polyethylene and includes a stationary anvil, preferably a roller of tool steel and a tungsten carbide die mounted for rotation along a circular arc intersecting the anvil. The roller is positioned at a stationary location along a circular arc for cyclicly contacting and rolling across the cutting surface for cutting the plastic film web passing between the roller and the cutting surface at the predetermined locations in the web. The roller is mounted on a support member by an assembly including a bracket mounting a shaft supporting the roller. The bracket is attached to one end of a rocker arm and the other end of the rocker arm is pivotally carried by the support member. A housing for a loading spring is carried by the support member adjacent the rocker arm. The housing has a tubular opening therethrough having an axial extending transversely to the axis of the shaft supporting the roller.