National Bureau of Economic Research

Andre Rodrigues test drives the latest iteration of the WWE video game and is delighted with the game’s animation and fighting system

The Tata Punch.ev looks impressive on paper, but how good is it?

We tried out Power Yoga and found there are many incorrect assumptions the mind makes about the body

The move by AFI and SAI to send the athletes on a month-long camp helped them acclimatise and bounce back to qualify for the 2024 Olympics

Sleek, strength and stealth, does this flagship gaming laptop have it all?

Scientists estimate that thawing ground could be a major source of the greenhouse gas

Scientists estimate that thawing ground could be a major source of the greenhouse gas

The Punch's pricing will be revealed only on October 20, the day of its launch.

I was not expecting to be impressed by the Tata Punch. But my drive proved me wrong, says Rajesh Karkera/Rediff.com.

Actor Aishwarya Sakhuja tries her talent at comedy in “Khidki”

The C train reached its last stop just after 9 a.m. Saturday at the Euclid Ave. station in East New York when the man insisted he needed five more minutes before he could leave the car.

The C train reached its last stop just after 9 a.m. Saturday at the Euclid Ave. station in East New York when the man insisted he needed five more minutes before he could leave the car.

A French surfer has survived a shark attack in Australia with only minor leg injuries by punching it twice, local media reported.

A recent experiment by scientists at the Smithsonian Tropical Research Institute in Panama has revealed just how rising atmospheric carbon dioxide will deliver a one-two […]

The post Rising ocean temperatures and acidity may deliver deadly one-two punch to the world’s corals appeared first on Smithsonian Insider.

Grey got help with animation, Myke imagines trucking in VR, and they both get distracted by keyboards with rainbow LEDs.

Make the holiday season a little healthier with these sweet cookie recipes.

A festive punch lets your guests know you're ready to celebrate.

A business form with laser compatible punch-out card and the methods of making the combination. The card is permanently adhered to a perforated backer sheet, the periphery of which extends beyond the card and is coated with adhesive for application to the bottom surface of a form containing a hole such that the card is disposed within the hole. The card and attached portion of the backer sheet can then be removed from the card-in-form combination by breaking the perforations. The card is die cut from card stock laminated to the backer layer and is prepared for application to the form by stripping a waste matrix of card material from the laminate through the use of patterned release material.

A notching apparatus for notching both an outer lamination and an inner lamination from a single lamination blank at s single station using a single press device includes a multi-piece die assembly provides multiple outer slot punches, multiple inner slot punches, and a separator punch. The outer slot punch portion, inner slot punch portion, and separator punch portion of the multi-piece die assembly are all selectively positionable in respective punching positions and non-punching positions to facilitate a controlled notching operation.

A punch includes a base, a plurality of punch pins, a lever and a plank. The base includes a lower member defining a plurality of holes and an upper member defining a plurality of holes corresponding to the holes defined in the lower member. Each of the punch pins is for insertion through one of the holes defined in the upper member and one of the holes defined in the lower member. The lever is pivotally mounted on the base. The plank defines a plurality of holes. The plank is movably attached to the lever between several positions in each of which it pushes a different set of the punch pins when the lever is operated.

A device and method for creating multiple punch holes during a finishing process of paper sheets and other sheet materials. The improved sheet punch including two rotatable punches set at different angles such that when one intersects the sheet path, the other clears the sheet path. The speed of rotation is controlled such that the non-selected punch intersects the sheet path in a space between pitches.

A method for creating multiple punch holes during a finishing process of paper sheets and other sheet materials. A highlight of the present invention is the ability to select between at least two configurations of punch holes automatically, without manual adjustment, and “on-the-fly” without interruption of the sheet or paper flow. The perforation method utilizes two rotatable punches set at different angles such that when one intersects the sheet path, the other clears the sheet path. The speed of rotation is controlled such that the non-selected punch intersects the sheet path in a space between pitches.

An automatic hole punch is disclosed for creating holes in a sheave of sheet material. The automatic hole punch is preferably user-selectable between punching modes, such as two-hole and three-hole modes. A motor is coupled to a camshaft by a gear train. The cam shaft carries a plurality of cams each having an associated punch. As the camshaft rotates, the cams sequentially drive corresponding punches. However, depending on the selected modality, one or more punches may be idle by not being engaged with their respective cams, thus resulting in varying combinations of driven punches resulting in different hole patterns. Finally, a spacer can be inserted into a material receiving slot for adjusting the relative positioning of the material to the punches to properly position the hole pattern along an edge of the material to be punched.

A punching machine comprising at least one punching head including a support body having a first end delimiting a peripheral shoulder, a second end, and at least two parallel seats being angularly spaced from one another and extending through said support body from said first end to said second end; a punching tool holder slibably mounted in at least one of said seats; a multiplicity of removable resilient means angularly spaced from one another, each having a first end resting on said peripheral shoulder and a second end facing away from said peripheral shoulder; an annular cap member arranged in front and spaced from said peripheral shoulder and designed to abut against said second end of said resilient means; a rotor member mounted for rotation on said annular cap member and having an inner face thereof facing towards said punching tool holder; a sliding member projecting from said inner face and arranged to slide onto said punching tool holder when said rotor member rotates; and driving means designed to stepwise drive said rotor member, whereby locating said sliding member onto a pre-selected punching tool holder.

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. In the punching device, each of the cam portions has a straight groove and a cam groove for performing the conversion function, and when the operating member is moved in one of opposite directions, at least one of the cam grooves of the cam portions acts on one of the punch members to selectively cause the same to advance.

A sequential punch press includes an upper die (10), a lower die (90), and an adjusting device (60) in the upper die. The upper die sequentially includes a punch set (20), a punch pad (30), a punch holder (40), and a stripper (50). A punch (70) is vertically and movably secured in the punch holder and received in the stripper. The adjusting device includes first and second sliding plates (64, 66) respectively having protrusions (65b, 67b), a piston cylinder (68) having a piston rod (682) fixedly connected with the first sliding plate, and a programmable controller for causing the piston rod to slidingly move the first sliding plate. When the first protrusions opposingly abut the second protrusions, the punch can extend beyond the stripper to punch a workpiece. When the first protrusions do not opposingly abut the second protrusions, the punch cannot extend beyond the stripper to punch the workpiece.

A sheet punching device that cuts holes in a sheet while punches are entering die holes, in which a plurality of punch trains along each of which a plurality of punches are aligned on a rotating shaft in parallel with the rotating shaft are disposed in the rotation direction of the rotating shaft, and the die holes are disposed in correspondence with the punches of the punch trains.

A punch change retainer for positioning a floating punch in a retracted, disengage position and an extended, engage position. The change retainer includes a change retainer body and a punch retainer receiving aperture extending upwardly through the change retainer body from a bottom surface thereof. A gagging member is located in the change retainer body and is actuable by an actuator between a retracted position distal from a nose portion of the change retainer body and an extended position adjacent the nose portion of the change retainer body. A floating punch retainer is receivable within the punch retainer receiving aperture, and includes an upper end positioned for engagement with the gagging member. A punch receiving hole is defined in the floating punch retainer; where the punch receiving hole is adapted to be rotatably positioned about a longitudinal center line of the floating punch retainer within the punch retainer receiving aperture.

An improved manufacturing method for the hole-punching assembly of a hole-punching unit is disclosed. The method of the present invention comprises the following steps: (1) forming a plurality of aluminum balancing pieces with a rectangular shape by extrusion, and forming an indentation area on one side of each balancing piece; (2) forming an elongated slot by an application of stamping on the indentation area of each balancing piece; (3) obtaining a plurality of rectangular pieces (the number of which equals that of the balancing pieces), made of iron, and forming a row of holes by a single application of stamping on each rectangular piece; and (4) fitting each of the rectangular pieces onto the indentation area of a balancing piece, and connecting the balancing pieces together by screws or bolts. The manufacturing method can lower the production cost and simplify the production process of the hole-punching assembly.

A pressing structure for a hole-punching unit includes an axle, two wrenching pieces, a pole and two pressing pieces, wherein the axle is axially attached to a case of the hole-punching unit, with one end of the axle axially connecting to a control knob, each wrenching piece connecting to the axle near its end, the pressing piece having a spring coil disposed at its middle and pivotally connected to the pole, and the pressing piece having a pair of lapping portions extending from a first side of the spring coil, and a pair of suppressing portions extending from a second side of the spring coil, the lapping portions leaning against an upper edge of the wrenching piece for the control knob to drive the wrenching piece to move synchronously, so as to let the suppressing portions to press the hole-punching assembly and to fasten the hole-punching assembly.

A multiple punch and multiple die assembly has a workpiece protector which is a punch lifter that is operatively associated with each punch for supporting each of the punches in an inactive position as an active punch is moved by the ram to the active, i.e. operating position to thereby eliminate scoring or marking of the sheet material or other workpiece that is being punched. To eliminate the need for hand tools and hand assembly or disassembly, a manually moveable retainer on the punch assembly is provided that can be moved by hand between a punch-releasing and punch-retaining position for holding the punches within the multi-punch assembly during operation. To prevent stress fractures that formerly occurred in die carriers, support of each die is distributed between two different die components thereby reducing impact stress on the carrier as the ram drives the punch through the workpiece.

A sheet processing apparatus provided with a sheet punching device and a processor unit for controlling the apparatus, said processor unit being adapted to enable an operator to specify sheet size, sheet orientation, and hole positions in batches of sheets being processed and creating a staggered stack of sheets by stacking said batches of sheets with holes aligned.

A multiple punch and multiple die assembly has a workpiece protector as a punch lifter that is operatively associated with each punch for supporting each of the punches in an inactive position as an active punch is moved by the ram to the active, i.e. operating position to thereby eliminate scoring or marking of the sheet material or other workpiece that is being punched. To eliminate the need for hand tools and hand assembly or disassembly, a manually moveable retainer on the punch assembly is provided that can be moved by hand between a punch-releasing and punch-retaining position for holding the punches within the multi-punch assembly during operation. To prevent stress fractures that formerly occurred in die carriers, support of each die is distributed between two different die components thereby reducing impact stress on the carrier as the ram drives the punch through the workpiece.

A selection plate (39) is provided on a punch device (1) for activating or deactivating individual punch holding bars (13, 14). The plate has a coupling device (40) associated with a positive-locking coupling between a punch holding bar (13, 14) and the selection plate (39). Associated with the positive-locking coupling is an edge of the selection plate (39), that is provided with a recess (42), an extension (43) of the punch holding bar (13, 14) that extends around said edge, and/or a rib (41), which is located on the underside of the selection plate (39) and is associated with the punch holding bar (13, 14). As a result, it is possible to selectively establish or eliminate a positive-locking connection between the punch holding bar (13, 14) and the selection plate (39). Via the rib (41), the punch stroke of the selection plate (39) is merely transmitted to the punch holding bar (13 or 14), which is in positive-locking engagement with the lateral edge or the projections of the selection plate (39). The elongated rib (41) covers the heads (26, 27, 28, 29) of the punches (8) and transmits the stroke in a planar manner to the punch holding bar (13 or 14).

A multiple punch and multiple die assembly has a workpiece protector which is a punch lifter that is operatively associated with each punch for supporting each of the punches in an inactive position as an active punch is moved by the ram to the active, i.e. operating position to thereby eliminate scoring or marking of the sheet material or other workpiece that is being punched. To eliminate the need for hand tools and hand assembly or disassembly, a manually moveable retainer on the punch assembly is provided that can be moved by hand between a punch-releasing and punch-retaining position for holding the punches within the multi-punch assembly during operation. To prevent stress fractures that formerly occurred in die carriers, support of each die is distributed between two different die components thereby reducing impact stress on the carrier as the ram drives the punch through the workpiece.

A multiple punch and multiple die assembly has a workpiece protector as a punch lifter that is operatively associated with each punch for supporting each of the punches in an inactive position as an active punch is moved by the ram to the active, i.e. operating position to thereby eliminate scoring or marking of the sheet material or other workpiece that is being punched. To eliminate the need for hand tools and hand assembly or disassembly, a manually moveable retainer on the punch assembly is provided that can be moved by hand between a punch-releasing and punch-retaining position for holding the punches within the multi-punch assembly during operation. To prevent stress fractures that formerly occurred in die carriers, support of each die is distributed between two different die components thereby reducing impact stress on the carrier as the ram drives the punch through the workpiece.

A sheet metal blanking die has a lower and an upper part and guide columns for maintaining the parts aligned. The upper part presents a plurality of punches which project downwards from it, when the die is closed by a press. Recesses are present on the flat lower portion to receive the respective punches at the moment of blanking. For one punch a rapid replacement device can be provided, including a chamber within which a loader can move presenting two cavities of vertical axis to receive relative punches. By moving the loader a punch can be selected for transfer from a rest position to an operative blanking position.

A sheet hole punching device has a device frame bearing-supporting a plurality of punching members, a driving rotation shaft, a drive motor, a gear mechanism transmitting a rotation of the driving rotation shaft, cam mechanisms converting the rotational movement into vertical movement, and a motor control device. The gearing mechanism includes drive gears fixed on the driving rotation shaft and receiving gears to engage with the drive gears to transmit the rotational movement to the punching members. The cam mechanism includes cylindrical cams formed integrally to the punching members and cam followers fixed to the device frame. The cylindrical cams are provided with V-shaped groove cams to reciprocate the punching members between an upper dead point and a lower dead point. The punching members are rotated in one direction to punch holes in a sheet, and subsequently rotated in a reverse direction to punch holes in a following sheet.

A sheet hole punching device has a device frame; a plurality of punching members arranged in first and second groups, and arranged linearly on the device frame; a driving rotation shaft; a driving motor reciprocally rotating the driving rotation shaft; a gear mechanism transmitting a rotation of the driving rotation shaft; cam mechanisms converting the rotational movement; and a motor control device. The gearing mechanism includes drive gears disposed on the drive rotational shaft, and receiving gears disposed on the punching members to engage with the drive gears. The cam mechanisms include cam followers and cylindrical cams. The cylindrical cam has a V-shaped groove cam to reciprocate each of the punching members between an upper dead point and a lower dead point. The punching members are rotated in one direction to punch holes in first sheets, and subsequently rotated in a reverse direction to punch holes in following sheets.

An apparatus for punching holes is provided. The apparatus may include a base movable from a first position to a second position and first and second punch assemblies attached to and movable with the base. The punch assemblies may each include parallel punches movable relative to the base and having an end. The apparatus may include first and second cams fixed to a rotatable shaft and having an engagement portion for engagement with the ends of the respective punches at a predetermined rotation position of the shaft. When the base is in the first position, rotation of the shaft to the predetermined rotation position may cause movement of only one of the punches relative to the base. When the base is in the second position, rotation of the shaft to the predetermined rotation position may cause movement of only the other punch of the punch assemblies.

A punch assembly for a turret punch press having a two piece reciprocally movable punch member that has a punch point insert removably attached to a punch driver that allows replacement of the punch point insert without the need to extract the punch member from its punch guide. A locking assembly having four vertical guideways containing slider strips for coupling the punch point insert to the punch driver ensures precision registration of the punch point insert with its driver.

In the invention, for a first sheet, regardless of the sheet size (width), a lateral registration detector is moved in a direction towards an edge face of the sheet from a home position to detect the edge face of the sheet. With lateral deviation in the sheet position corrected, punching is performed by a puncher. For the second and subsequent sheets, the lateral registration detector is moved in advance to near the edge face of the sheet with reference to the detected position of the sheet edge of the first sheet, and the edge face is detected at a given timing. With lateral deviation in the sheet position corrected, punching is performed by the puncher.

A bound system including a plurality of pages and a cover and/or divider including a bound outer edge and a plurality of free outer edges. The cover and/or divider may be bound to the plurality of pages along the bound edge. The cover and/or divider may include one or more discreet tabs extending generally outwardly relative to one of the edges. Each tab may be integrally formed from a single piece of material with the rest of the cover and/or divider. Each tab further may have an opening formed therethrough and is configured to receive at least part of a binding device therethrough to thereby couple the cover and/or divider to the binding device.

The punch retainer mounted on a die shoe has a body with a backing plate fastened to the top face thereof. The body is formed with a first bore for retaining a punch, the inner end of which abuts the backing plate. A first dowel projecting from the mounting face of the die shoe extends into the backing plate in axial alignment with the central axis of the first bore. Second and third bores in the body register with second and third holes in the backing plate. Tubular dowels engage in the registering bores and holes to align the backing plate on the body. The retainer is mounted on a die shoe by holding screws which extend through the tubular dowels and thread into the die shoe. The backing plate is aligned on the die shoe by either a separate fourth dowel in the backing plate spaced remotely from the first dowel or by extending one of the tubular dowels beyond the backing plate for engagement with a registering opening in the die shoe.

An apparatus and method for positioning and aligning one or more pre-punched printing plates on a cylinder for imaging a plate in a computer-to-plate drum imaging device. The apparatus includes an imaging cylinder and a registration device connectable to the cylinder. The apparatus includes at least one groove and one pair of register pins, with a first register pin in a fixed position, and a second register pin movable in the groove to a second position, and collinear with the first register pin in the axial direction of the cylinder, arranged such that when connected to the cylinder, the registration device allows a plurality of pre-punched printing plates with variable widths to be positioned and aligned on the cylinder with simplicity.

A punching device includes a punching unit that punches a hole in a sheet of paper; a container that receives a chad of paper generated upon punching by the punching unit; a dispersing member that is provided within the container and that is configured to disperse the chad of paper; and a guiding member configured to guide the chad of paper that is generated upon punching by the punching unit and fallen into the container to the dispersing member.

A sheet material punching device includes a plurality of punches and links, a driving mechanism having drive gears capable of transmitting a rotational driving force of an electric motor (driving source), and slide arms allowed to reciprocate along the longitudinal direction of a frame, the slide arms making the punches reciprocate in a punching direction along with their own reciprocating motions by the intermediary of links. The slide arms respectively have cams capable of converting the rotational motion of the driving mechanism into the reciprocating motions of the slide arms, and auxiliary cams capable of moving the slide arms to predefined initial positions. The drive gears respectively have cam followers to be engaged with the cams, and auxiliary cam followers to be engaged with the auxiliary cams. The sheet material punching device return the slide arms to the initial positions without increasing a driving energy.

A sheet post-processing apparatus which is capable of shortening time wasted until actual start of punching and enhancing productivity. A drive unit causes a moving member which has a cam and reciprocates. A punching member is driven by a movement of the cam of the moving member and punches a sheet when the moving member moves forth and moves back. A determination unit determines a type of the sheet. A control unit controls, when a sheet to be punched is to be subjected to a punching process, the drive unit such that the moving member starts moving before conveyance of the sheet to be punched stops, and controls, when the sheet to be punched is to be subjected to the punching process, the drive unit such that timing with which the moving member starts moving is changed based on the determination by the determination unit.

A punch button (32) has a central disc (36) integral with and separable from an outer peripheral annular ring (38). The disc and ring are joined by a breakaway portion (40) of reduced thickness. A pair of peel points or pilot cuts (50 and 52) may be provided on distally opposite sides of the disc, and if so, the disc is initially separable from the ring at the peel points and then rotatable about a rotation axis perpendicular to an axis through the distally opposite pilot cuts. The punch button is formed by providing a strip of material of a first thickness, placing the strip in a die, performing an inner cut with the die and partially cutting through the strip to yield first and second subpieces joined to each other by material of a second reduced thickness, and performing an outer cut with the die and cutting all the way through the strip to yield a piece composed of the first and second subpieces providing the disc and ring. The pilot cuts are performed by the die during performance of the inner cut and to a deeper depth than the inner cut. All of the cuts are performed in a singular die step operation wherein an outer punch (58) is moved toward an inner punch (66) in one axial direction to perform the inner cut, the pilot cuts, and a portion of the outer cut, and continuing movement of the outer punch in the one direction and simultaneously moving the inner punch in the same direction in unison with the outer punch to complete the outer cut.