Abstract: It is an object that when a pierce punch, a flange block or the like are necessary to be demounted for reasons such as adjustment, the pierce punch, the flange block or the like is singly demounted without taking out a slide cam as a whole to thereby reduce a working time, in addition, only an adapter plate is replaced to thereby enable the reuse of a slide cam and attain cost reduction, furthermore, a given slide cam is used to increase flexibility in design aspect to a great degree.

Abstract: A punching device for edge decoration, which enables to repeatedly punch a pattern in a target such as paper along edges of the target, includes a jig (15) in which a predetermined pattern (17) is perforated, a punching member (13) having a section corresponding to the perforated pattern (17) and being slidable through the perforated pattern (17), and a base (19) combined with the jig (15) and having an angle (&thgr;) in range of 60°≦&thgr;≦180° to the perforated pattern (17), the base (19) having a standard marking (20) with a pattern corresponding to all or part of the perforated pattern (17).

Abstract: A machine for marking skins or other articles in sheet form by perforation, comprising: a support structure for m rows each formed from n vertical punches, m and n being whole numbers with m≧1 and n≧2, the upper ends of the punches being inserted into holes of a corresponding plate elastically supported on the support structure, each lower end of the vertical punches of each row interacting with a corresponding wedge element of a plurality of n.

Abstract: A method and apparatus for punching holes in a substrate which is disposed between a punch head with a fixed partial pattern of holes and a die having a full array pattern of holes. The punch head punches holes in the substrate by aligning with the die and contacting the substrate. Punches contained in the punch head articulate in at least one of x, y, and theta positions in order to precisely align with holes in the die thereby producing holes in the substrate which precisely match holes in the die.

Abstract: An electric punch for automatically punching holes in documents and the like is provided that allows the spacing between the holes to be selectively set at either 70 mm (U.S. standard) or 80 mm (European and Japanese standard) by forming a bend midway of the length of operating arms of respective perforating members so that forward and rearward portions of the operating arms are laterally offset in parallel by a prescribed distance and clamping the operating arms with two supports of different width, thereby enabling the punched hole spacing to be selectively changed by exchanging the left and right perforating members.

Abstract: A device for blanking out patterns of various letters such as Alphabet or figures in a board such as paper includes a housing 10 having a guide groove 11 and through holes 10a on an upper surface thereof, an upper plate 20 having upper pattern holes 21 faced with the through holes 10a, a punch member 15 interposed between the housing 10 and the upper plate 20, a lower plate 22 combined under the upper plate 20 and having lower pattern patterns 23 faced with the upper pattern holes 21 on an upper surface thereof, a guide rail 7 provided at an upper portion of the housing 10, and a push handle 5 sliding along the guide rail 7.

Abstract: A paper punch includes a base having a protrusion on a top thereof and three passages are defined vertically through the protrusion. Each of the passages has a punch head assembly received therein. A gap is defined between the protrusion and the top of the base. A handle has a groove defined therethrough and an index member is movably engaged with the groove so that the index member can be moved to a position above the chosen punch head assembly which is moved downward to punch papers in the gap by pivoting the handle.

Abstract: A Venetian blind cutting machine comprises a mold assembly, which has a main block and a guiding slot on the main block. A sliding block slidably receives in the guiding slot. The guiding slot has at least one stopping potion for stopping the sliding block. The sliding slot is for receiving slats therein between a closed end of the guiding slot and the sliding block. A cutter is slidably provided at the main block of the mold assembly for free shifting. Two driving bars have ends thereof fastening to the cutter. A joint block has two openings for receiving the driving bars therein and holding the driving bar therein by friction. The joint block is fastened to the sliding block. Whereby, the driving bar will drive the cutter, the joint block and the sliding block to move along with it. The sliding block will press the slats first to lock the slats in the guiding slot automatically.

Abstract: An apparatus (10) is provided for automatically cutting strip materials (22) into slats (20) for a venetian blind. The apparatus (10) has a feeding station (12), a cutting station (14), a punching station (16) and a laddering station (18). Strip materials (22) for the slats (20) are stored in a magazine (24) of the station (12) and they are fed one at a time to the cutting station (14) for cutting into slats (20) of preset length after slots (46) have been punched. The slats (20) are then fed to the laddering station (18) for assembling into blinds. A sensor (56,58) is positioned to sense remnants of the strip material (22) and the remnants are automatically moved back to the feeding station (12) where they are lifted off the feeding path for ejection by a following strip (12).

Abstract: A shape cutting apparatus for stamping a variety of shapes from thin sheet material. The shape cutting apparatus includes a body member having a cavity with a plurality of die bores, a plurality of die plugs designed to be inserted into the die bores, and a plunger cap designed for depressing the die plugs through a sheet member for producing shaped cutouts.

Abstract: A puncher for decorative sheet adapted to cut and punch margin or certain portions including the margins of paper sheet in various shapes to give decorative and beautiful effect to the paper is disclosed. The puncher have a stop protrusion formed at a rear portion of a base plate for limiting rearward movement of a sheet, and positioning markers for maintaining even spacing between the adjacent cut shapes formed at the sheet.

Abstract: A paper trimmer includes a base having a plurality of trimmer devices connected thereto and a top member is mounted on the base and has a center hole through which a tube extending from the base extends. The top member has multiple extensions which is fixed on the base and the trimmer devices are located between the extensions. A pushing handle is rotatably mounted to the tube and has a tongue extending therefrom which is located above one of the trimmer devices. The chosen trimmer device can be operated by pushing the pushing handle.

Abstract: A die pin retainer subassembly for use in a die assembly that slidably engages with a die punching machine comprises an elongated retainer, which includes at least one hole for receiving a die pin, and an elongated retaining bar disposed over the enlarged head of the die pin. At least one of the retainers on the retaining bar is in the form of a channel and the retainer and the retaining bar are sized and configured to nest along the lateral direction to minimize any relative lateral movement.

Abstract: A three knife trimmer has a front knife and two lateral knives. A drive device drives the front knife and the two lateral knives such that a front cut and at least one lateral cut are performed with phase displacement by the front knife and at least one of the two lateral knives on the material to be cut. The drive device has at least one drive curve. At least two pivotable levers engage the drive curve, wherein the front knife and at least one of the two lateral knives are drivingly connected to the at least two pivotable levers.

Abstract: A mold-pressing device including a seat body formed with a horizontal fissure at one end and a vertical chamber communicated with the fissure. A mold block is disposed in the chamber. One face of the mold block is disposed with a solid die, while the other face of the mold block is disposed with a channel passing through the mold block. A pressing lever is pivotally disposed in the channel of the mold block. A housing covers the seat body and is formed with a window for a pressing section of the pressing lever to extend therethrough. In use, a paper or a sheet is pushed into the fissure of the seat body and then the pressing section of the pressing lever is depressed, whereby a protuberance of the pressing lever is moved downward to force the mold block downward with the die punching the paper or the sheet placed in the fissure. Therefore, a product with a shape as that of the die is formed.

Abstract: A novel method and apparatus for producing an endless flexible seamed belt using a punch and die is disclosed. The punch and die have patterned edges in the form of a puzzle cut pattern with extremely small nodes and kerfs. The cutting tolerances of the patterned edges make it necessary to fix the punch with respect to the die so that there is no misalignment of the punch and die between cutting operations. This is accomplished by resiliently fixing the punch to the die, rather than having the punch attached to the force generating assembly as in normal punch and die assemblies. Belt material is positioned between a stock gap between the punch and die and the force generating assembly is activated to provide the cutting force. Once the belt material is cut, the cutting force is removed and the force generating assembly returns to its retracted position. There are two cutting edges on the punch and die so that a first end of one belt and a second end of another belt are formed in a single cutting operation.

Abstract: A novel method and apparatus for producing an endless flexible seamed belt using templates is disclosed. A first form of the template is a mask template with a template aperture in the form of a puzzle cut pattern to be used in combination with an excimer laser. The template is placed between the excimer laser source and the belt material to be cut. As the excimer laser traverses the width of the belt, the laser forms a puzzle cut pattern on the belt. A second form of the template is a punch and die having patterned edges in the form of a puzzle cut pattern with extremely small nodes and kerfs. The cutting tolerances of the patterned edges make it necessary to fix the punch with respect to the die so that there is no misalignment of the punch and die between cutting operations. This is accomplished by resiliently fixing the punch to the die, rather than having the punch attached to the force generating assembly as in normal punch and die assemblies.

Abstract: There is provided a punching device including: a die member having a plurality of die holes formed therein; a plurality of punch members which are caused to advance into the die holes to punch holes in a member to be punched; an operating member having cam portions formed along a direction intersecting the direction of advancement of the punch members, the operating member being moved along the direction intersecting the direction of advancement of the punch members to cause by a conversion function of the cam portions the punch members to advance into the die holes; and a drive unit for selectively causing advancement of the plurality of punch members by changing the direction of movement of the operating member.

Abstract: A cutting device for plate materials relatively transfers a plate material and cutter blades and cuts the plate material with a cutting portion of the cutter blades. The cutting portion is provided with a plurality of projecting cutter blades. The plurality of projecting cutter blades are separately disposed at fixed intervals in the direction which the plate material is transferred to the cutter blades and gradually projected larger toward the direction in which the plate material advances. The plurality of projecting cutter blades have inclined cutting edges which are acute cutting edges for cutting the plate material in such a manner as to be gradually inserted deeper into the plate material transferred to the cutter blades. The inclined cutting edges are inclined toward the direction in which the plate material is transferred so as to be gradually inserted deeper into the plate material.

Abstract: Embodiments of an punch machine and a quick-change die assembly are shown and described. The die assembly may be quickly installed and removed from the punch machine, without bolting or unbolting of either machine housing or the die assembly itself. The die assembly is slid into the machine through a hole in the machine housing and into a position which mates part of the die assembly with the push-bar. A clamp, with a handle outside the machine, is then pivoted against the die assembly. The push-bar is adapted to be self-supporting without being bolted to the die assembly, keeping the push-bar in place without manual adjustment and alignment. The die assembly preferably includes a die, pin retainer, and punch pins, and preferably includes a flexible, pivotal, or hinged pin strap to secure the pins to the retainer.

Abstract: A method of cutting a resilient workpiece having sides in opposition to one another to form at least one cut in the workpiece includes the steps of stretching the workpiece, maintaining the workpiece in stretched condition by applying clamping forces to the sides of the workpiece after the workpiece has been stretched, cutting the workpiece while it is clamped and stretched to form a cut in and extending through the workpiece, and unclamping the workpiece after the cut has been formed to allow the workpiece to return to unstretched condition and the cut to close.

Abstract: The apparatus for punching a sheet S includes a shaft 2 extending transversely relative to the moving direction of the sheet S; a pair of cams 3, 3 mounted to the shaft 2 in both longitudinal end portions for rotating together with the shaft 2; a tie bar 4 extending along the shaft 2 and having a pair of cam followers 41, 41 at positions corresponding to those of the cams 3, 3; a plurality of punches 5, 5 connected to the tie bar 4 in longitudinal arrangement for being movable to and from punching positions; a frame 7 extending along the tie bar 4, to which a plurality of punch guides 6, 6 are fixed in alignment with the punches 5, 5; and a die frame 8 having a plurality of die holes 81, 81 in alignment with the punches 5, 5 for cooperating with the punches 5, 5 to make holes in the sheet S.

Abstract: A stamping die produces gears or other parts having quality tooth forms or the like from smooth edged metal blanks. A lower portion of the die includes a trim punch, whose perimeter shape corresponds to the shape of the desired part, and a vertically movable stripper plate surrounding the trim punch and having a recess for aligning the blank. An upper portion of the stamping die is vertically movable with respect to the lower portion, and includes a trim die. The trim die has a bore disposed therein complementary to the trim punch. A nest plate is affixed to the underside of the trim die, and has a tapered nest opening that aligns with the die bore. A controllably biased shedder passes through the bore and opening. During operation, a blank is first placed in the recess. A press ram subsequently descends, with the blank becoming sandwiched between the shedder and the trim punch, with a portion of the blank to be trimmed being left unsupported.

Abstract: A perforator for making perforations in a continuous film which is thereafter cut into individual filmstrips having variable lengths. A die set unit of the perforator has a plurality of punches and corresponding dies which are respectively arranged along the continuous film. The die set unit performs die-punching N times (N=1, 2, 3 . . . ) in every first section having a variable length Lx, and the measuring feeder transports the continuous film by a first length after each of (N−1) times die-punching and by a second length after the last die-punching for every first section. The first length is given as Lx/N, and the second length corresponds to the first length plus the length L2 of a second section disposed alternately with the first section along the continuous film. In alternative, the die set unit is constituted of first to nth die sets aligned in order from downstream to in the film transporting direction. The ith die set of the die sets has a number Gi (i=1, 2 , . . .

Abstract: The present invention relates to a punch for punching a workpiece. In particular, the invention relates to a punch including a base to stably support the punch and a support member configured to accommodate and locate the workpiece in a punching position. The support member is preferably movably connected to the base and preferably includes at least one punch member configured and operably associated with the support portion to punch the workpiece in the punching position upon an actuation movement of the support member with respect to the base. Another embodiment of the present invention relates to a punch having a paper tray oriented at an angle with respect to the base to support a sufficient portion of a sheet of paper to prevent an unsupported portion from falling over and withdrawing from the support portion. In particular, the paper tray and punch mechanism are oriented to expel paper chips such that the chips are visible to an operator as they are punched.

Abstract: An alignment device for aligning a punch tool to punch a design into a sheet media. The alignment device comprises a base platform having at least one sheet media receiving area. The base platform has at least one punch tool receiving area with at least one punch tool mount disposed therein. The punch tool mount is configured to removably secure the punch tool, and a portion of the punch tool mount protrudes into the sheet media receiving area. The device also comprises first and second guide edges disposed angularly from at least one of the punch tool mounts. The first guide edge disposed on one side of the punch tool mount. The second guide edge disposed on an opposite side of the punch tool mount. When the punch tool is secured in the punch tool mount with the punch tool protruding into the sheet media receiving area and when the sheet media is placed in the sheet media receiving area and along the first and second guide edges, the punch tool is positioned to punch the design into the sheet media.

Abstract: A perforator for making perforations in a continuous film which is thereafter cut into individual filmstrips having variable lengths. A die set unit of the perforator has a plurality of punches and corresponding dies which are respectively arranged along the continuous film. The die set unit performs die-punching N times (N=1, 2, 3 . . . ) in every first section having a variable length Lx, and the measuring feeder transports the continuous film by a first length after each of (N−1) times die-punching and by a second length after the last die-punching for every first section. The first length is given as Lx/N, and the second length corresponds to the first length plus the length L2 of a second section disposed alternately with the first section along the continuous film. In alternative, the die set unit is constituted of first to nth die sets aligned in order from downstream to in the film transporting direction. The ith die set of the die sets has a number Gi (i=1, 2, . . .

Abstract: A movable upper tool for separating blanks comprises a base plate with apertures and on a lower side is provided with punches. The tool cooperates with a lower tool having separating bars for the separation of the blanks. The apertures of the upper tool are arranged along two orthogonal axes in an area, and one of these orthogonal axes consists of a line slanting with regard to one of the edges of the base plate of the movable tool, and at least one of the lateral sides of each of the cross sections of the punches is tangential to one of the apertures so that the space between the punches determines the total pressure identical to the punches on the blanks to be separated in the neighborhood of the separating bar, regardless of the position of the separating bar of the lower tool.

Abstract: A novel method and apparatus for producing an endless flexible seamed belt using templates is disclosed. A first form of the template is a mask template with a template aperture in the form of a puzzle cut pattern to be used in combination with an excimer laser. The template is placed between the excimer laser source and the belt material to be cut. As the excimer laser traverses the width of the belt, the laser forms a puzzle cut pattern on the belt. A second form of the template is a punch and die having patterned edges in the form of a puzzle cut pattern with extremely small nodes and kerfs. The cutting tolerances of the patterned edges make it necessary to fix the punch with respect to the die so that there is no misalignment of the punch and die between cutting operations. This is accomplished by resiliently fixing the punch to the die, rather than having the punch attached to the force generating assembly as in normal punch and die assemblies.

Abstract: A novel method and apparatus for producing an endless flexible seamed belt using templates is disclosed. A first form of the template is a mask template with a template aperture in the form of a puzzle cut pattern to be used in combination with an excimer laser. The template is placed between the excimer laser source and the belt material to be cut. As the excimer laser traverses the width of the belt, the laser forms a puzzle cut pattern on the belt. A second form of the template is a punch and die having patterned edges in the form of a puzzle cut pattern with extremely small nodes and kerfs. The cutting tolerances of the patterned edges make it necessary to fix the punch with respect to the die so that there is no misalignment of the punch and die between cutting operations. This is accomplished by resiliently fixing the punch to the die, rather than having the punch attached to the force generating assembly as in normal punch and die assemblies.

Abstract: A novel method and apparatus for producing an endless flexible seamed belt using a punch and die is disclosed. The punch and die have patterned edges in the form of a puzzle cut pattern with extremely small nodes and kerfs. The cutting tolerances of the patterned edges make it necessary to fix the punch with respect to the die so that there is no misalignment of the punch and die between cutting operations. This is accomplished by resiliently fixing the punch to the die, rather than having the punch attached to the force generating assembly as in normal punch and die assemblies. Belt material is positioned between a stock gap between the punch and die and the force generating assembly is activated to provide the cutting force. Once the belt material is cut, the cutting force is removed and the force generating assembly returns to its retracted position. There are two cutting edges on the punch and die so that a first end of one belt and a second end of another belt are formed in a single cutting operation.

Abstract: An apparatus for the production of tire sectors from used tires wherein the tire sectors remain interconnected in the area of the tire tread. The apparatus comprises a support with at least a portion inserted within the inner section of the tire and the support has at least two spaced apart and arc-shaped abutments for supporting the tire sidewalls. At least one knife for cutting the sidewalls of the tire without cutting the tread, wherein the abutments have multiple passageways to allow the knife to move through the abutments during a cutting operation when the knife moves from a mid position to an end position. The apparatus can include punching dies for punching openings into the tire sidewalls.

Abstract: A cutting knife assembly has a baseboard with a generally planar surface. A cutting knife is detachably connected to the baseboard. The cutting knife extends in a perpendicular direction to the baseboard. The cutting knife circumscribes a knife cavity on the baseboard. At least one elongated cross member is affixed to the cutting knife and extends across the knife cavity. The cross member is mounted to the baseboard by a removable fastener. The cutting knife may then be easily removed from the baseboard and resecured.

Abstract: A paper sheet decorative punching device is disclosed. In the punching device, a cap-shaped pressure member is movably received in an opening of a housing with two longitudinal guide pieces vertically extending from the lower edge of the pressure member. A punching blade unit, allowing the pressure member to be rotatable within a range, has two punching blade parts. The two blade parts have different punching patterns and different lengths. Both the pressure unit and the punching blade unit are biased upwardly by a compression coil spring, and so the pressure unit is normally projected from the top of the housing. Two edge guide members are symmetrically hinged to a base plate and are adjustable between a closed position for guiding a sheet's corner and an open position for guiding a sheet's side. A jig unit, seated on the base plate, consists of an upper holder member and a lower cutting member, with a paper sheet insert gap being formed between the two members.

Abstract: Notches are cut in a “Z”-section closure to be installed across seams on a standing seam metal roof by means of a tool which punches holes in the central web of the closure. The lower flange of the closure is subsequently cut manually to finish the notch. The tool's die surfaces correspond in shape to that of the closure, and the punch and die are aligned so that the elongate hole they make in the central web extends to the bottom of the web.

Abstract: A slitter-and-hole-punch and quick change adapter combination fits a bag machine or the like for punching holes and slits in a web of film material. A hole punch and a slitter blade are unitarily formed on a base member. Left and right resilient arms extend from distal to proximal, and have free ends that project proximally of the base member. The quick adapter can be an extruded block with a T-channel formed on a lower side with a passage or gap to accommodate the hole punch and the slitter blade. The T-channel has inwardly directed flanges that create side recesses to accommodate the resilient arms of the slitter-and-hole-punch. The side recesses have cooperating hollows to receive detents of the associated resilient arm. The slitter-and-hole-punch can be slid in and out of the T-slot, and when slid in, the detents on the resilient arms keep it in position. The slitter-and-hole-punch can be changed out in a few seconds by hand. The slitter-and-hole-punch units can be color coded, e.g., for gap size.

Abstract: The cutting mechanism includes a cutter block mounting a knife blade arranged for movement along a slot in a cutting table. The cutter block is driven by a cable and a first drive pulley. The cable extends under and around the first drive pulley and a second pulley, with the first end of the cable fixed to a second end of the cutter block, and the second end of the cable fixed to a first end of the cutter block. The cable and the first and second pulleys are arranged such that when the cutter block lies between the first end of the slot in the table and a center of first drive pulley the first and second ends of the cable are drawn taut thereby stopping movement of the cutter block along the slot towards the first end, and such that when the cutter block lies between the second end of the slot in the table and a center of the second pulley the first and second ends of the cable are likewise drawn taut stopping movement of the cutter block along the slot towards the second end.

Abstract: A hand operated cutting apparatus and method of cutting mat board, glass, and other related sheet-like framing material. The apparatus has a cutting head assembly which includes a plurality of interchangeable and adjustable blade holding units. Each blade holding unit provides a different type of cut, such as a beveled, straight edge, or V-groove cut. Most of the blade holding units are intended for use with mat board, but some can be used to cut and trim sheet-like glass or plastic framing material. Each blade holding unit is also capable of vertical adjustment relative to the workpiece so that various depths of cut can be provided. The method of cutting a mat board permits the mat board to be positioned face up on the base board of the cutting apparatus and does not require flipping or taping of the mat board during V-groove cutting operations.

Abstract: A perforator for making perforations in a continuous film which is thereafter cut into individual filmstrips having variable lengths. A die set unit of the perforator has a plurality of punches and corresponding dies which are respectively arranged along the continuous film. The die set unit performs die-punching N times (N=1, 2, 3 . . . ) in every first section having a variable length Lx, and the measuring feeder transports the continuous film by a first length after each of (N-1) times die-punching and by a second length after the last die-punching for every first section. The first length is given as Lx/N, and the second length corresponds to the first length plus the length L2 of a second section disposed alternately with the first section along the continuous film. In alternative, the die set unit is constituted of first to nth die sets aligned in order from downstream to in the film transporting direction. The ith die set of the die sets has a number Gi (i=1, 2, . . .

Abstract: A punch includes a first member and a second member which has two lugs extending therefrom which are pivotally connected to the first member. Two apertures are defined through the second member. A transverse frame is connected between the two lugs and two punching tools movably extend through the transverse frame. Each punching tool has the first end thereof contacting the underside of the first member and the second end of each punching tool extends through the transverse frame and is located in alignment with the aperture corresponding thereto. A first end of a rod rotatably extends through the second member and the first member, wherein a second end of the rod movably extends through the second member. A handle is pivotally connected to the first end of the rod so that the handle is pivoted relative to the first member to extend the distance between the punching tools and the handle.

Abstract: An apparatus for separating a ribbon-coated multicore optical fiber at a plurality of positions at once, wherein the ribbon-coated multicore optical fiber includes a number of single-core fibers arranged in parallel. This apparatus comprises a first cutting member in which a plurality of sets of arc faces opposed to each other by way of a through path for inserting the ribbon-coated multicore optical fiber are disposed along the through path, while the arc faces in the respective sets extend from one side section of the through path halfway through the width direction of the through path; a second cutting member having a plurality of arc faces which continuously extend to and are adapted to join with the respective arc faces of the first cutting member in the width direction of the through path; and guide members which are respectively disposed at both end positions of the through path so as to position the ribbon-coated multicore optical fiber inserted into the through path.

Abstract: The present invention relates to a method for cutting a piece of meat into a predetermined number of steaks. To allow the piece of meat to be cut in a rapid and simple manner with small losses of raw material, the piece of meat is placed in a mould whose bottom, cover and side walls substantially enclose the piece of meat, the piece of meat is subjected to a pressure in such a way that the bottom, the cover or at least one of the walls is movable and at least partly pressed into the mould until the piece of meat is so compressed as to fill substantially the entire space between the bottom, side walls and cover of the mould. The cutting elements are inserted into the mould through slots provided in the side walls, cover and/or bottom of the mould, whereby the piece of meat subjected to pressure is cut into a predetermined number of steaks by the cutting elements. The invention also relates to a cutting apparatus.

Abstract: A multi-purpose blind cut-down apparatus for cutting a blind having a head rail and closure elements. The cut-down apparatus has a blind holding plate with a blind component opening and a closure element opening for holding the head rail and closure elements in position for cutting. The cut-down apparatus uses a closure element cutting bar moveable relative to the holding plate for cutting the closure elements extending through the holding plate. The cutting bar has an die opening for receiving a cutting die on a cutting die plate. The die opening and cutting die receive the head rail of the blind and cooperate to cut the head rail by moving the cutting die plate relative to the holding plate. The cutting bar moves in a linear path while the die plate moves in an arcuate path, both the cutting bar and die plate are moved by a transmission element moveable relative to the holding plate.

Abstract: A hole-punching and binding apparatus for papers includes a hole-punching device drivable to move along a vertical direction. The hole-punching device includes a cutter seat carrying thereon a number of cutters that are equidistantly spaced in a row to punch a row of holes in a stack of papers. Each cutter being freely movable in a row of compartments in the cutter seat so as to optionally follow a hole-punching travel of the cutter seat under control of a slidable shield. A lever-like resilient load-on plate is used to press and thus close open ends of helical coils and to help the user extend the helical coils through a stack of punched papers. The coil-closing device is drivable to move along a horizontal direction. The coil-closing device cooperates with a fixed plate to turn the open ended helical coils into closed ended helical coils.

Abstract: A perforator for making perforations in a continuous film which is thereafter cut into individual filmstrips having variable lengths. A die set unit of the perforator has a plurality of punches and corresponding dies which are respectively arranged along the continuous film. The die set unit performs die-punching N times (N=1, 2, 3 . . . ) in every first section having a variable length Lx, and the measuring feeder transports the continuous film by a first length after each of (N-1) times die-punching and by a second length after the last die-punching for every first section. The first length is given as Lx/N, and the second length corresponds to the first length plus the length L2 of a second section disposed alternately with the first section along the continuous film. In alternative, the die set unit is constituted of first to nth die sets aligned in order from downstream to in the film transporting direction. The ith die set of the die sets has a number Gi (i=1, 2, . . .

Abstract: Embodiments of an punch machine and a quick-change die assembly are shown and described. The die assembly may be quickly installed and removed from the punch machine, without bolting or unbolting of either machine housing or the die assembly itself. The die assembly is slid into the machine through a hole in the machine housing and into a position which mates part of the die assembly with the push-bar. A clamp, with a handle outside the machine, is then pivoted against the die assembly. The push-bar is adapted to be self-supporting without being bolted to the die assembly, keeping the push-bar in place without manual adjustment and alignment. The die assembly preferably includes a die, pin retainer, and punch pins, and does not require additional structure to secure the pins to the retainer or to connect the die and retainer, but may include a connection system and a pin strap as options.

Abstract: A unitary shear blade (20) for shearing a plurality of spaced apart streams of molten glass into individual gobs, the shear blade having a free end (20a) and an opposed end (20b). The free end is provided with a plurality of side-by-side shearing surfaces (22, 24, 26) each of which has a generally V-shaped machined shearing edge. A plurality of fastener receiving openings (28) extends through the shear blade at locations adjacent the opposed ends thereof to permit the shear blade to be removably secured to a carriage (10) by a plurality of threaded fasteners (12).

Abstract: A perforator for making perforations in a continuous film which is thereafter cut into individual filmstrips having variable lengths. A die set unit of the perforator has a plurality of punches and corresponding dies which are respectively arranged along the continuous film. The die set unit performs die-punching N times (N=1, 2, 3 . . . ) in every first section having a variable length L.times., and the measuring feeder transports the continuous film by a first length after each of (N-1) times die-punching and by a second length after the last die-punching for every first section. The first length is given as L.times./N, and the second length corresponds to the first length plus the length L2 of a second section disposed alternately with the first section along the continuous film. In alternative, the die set unit is constituted of first to nth die sets aligned in order from downstream to in the film transporting direction. The ith die set of the die sets has a number Gi (i=1, 2 . . .

Abstract: A method and apparatus for quickly and easily cutting straight and uniform dessert bars is provided. The baker's cutting device consists of two parallel blocks connected perpendicularly by two parallel guide bars. The bottom of the front block is configured such that the block fits over one edge of the baking pan and the back edge of the block hangs over the edge of a table or counter top to hold the apparatus in place. The guide bars are in this manner suspended just over the top of a typical baking pan. Resting perpendicularly upon the guide bars is a sliding cutting bar, this cutting bar may be supplied with handles at each end. A plurality of cutting blades are attached to both the upper and lower sides of the cutting bar at various intervals.

Abstract: A stripper holder for holding a stripper plate conforms with the deformation of a die plate. A pressing force applied to the stripper plate and is greater than an elastic limit of a metal tape to be punched, and less than a pressing deformation or breakage force of the metal tape. The stripper holder may also be flexible, or such that the metal tape is pressed at two different positions for one punching position by two different pressing forces.