Abstract: A fixed blade support device includes a biasing member and a fixed blade support member (11). The fixed blade support member (11) includes a base surface portion (11a), an upright surface portion (11b), and a retainer portion (11c). The upright surface portion (11b) extends from the base surface portion (11a) in a biasing direction so as to close a rear side of a root portion of a fixed blade (12) on an opposite side to a blade edge portion thereof, and is configured to prevent the fixed blade (12) from being disengaged in a direction of engagement with a movable blade. The retainer portion (11c) extends from the upright surface portion (11b) so as to cover the root portion of the fixed blade (12), and is configured to prevent the fixed blade (12) from being disengaged in the biasing direction.

Abstract: The invention relates to a method for setting the cutting gap on a cutting device for cutting food products. According to said method, the actual distance between the blade and the cutting edge is first determined and a desired distance between the blade and the cutting edge is subsequently set by an electric repositioning device, taking into consideration said actual distance.

Abstract: A cutting device includes a movable blade and a stationary blade opposed to the movable blade across a sheet-like object to be cut. The movable blade is formed into a concave shape retracted inwardly from opposite end portions toward a central portion thereof. The stationary blade is formed into a straight line in parallel to the cut surface of the object. An angle of each of portions of the cutting edge on sides of the opposite end portions with respect to a cut surface of the object to be cut is larger than an angle of each of portions of the cutting edge on both sides of the central portion with respect to the cut surface.

Abstract: A sheet cutter for cutting a sheet by shearing. The sheet cutter has a fixed blade, a movable blade which is movable along the fixed blade, and a receiving element which receives a sheet piece which is cut off from the sheet. The receiving element is structured so as to be movable together with the movable blade as the movable blade moves. The receiving element may be structured such that it is translationally movable in a direction substantially perpendicular to the moving direction of the movable blade.

Abstract: The invention relates to a device for setting the cutting gap between a rotor, having cutting blades and rotatable about its rotor axis, and a counter-blade body, which carries a cutting edge, can be fixed in position and can be set relative to the cutting blades of the rotor for optimizing the gap by an adjusting mechanism acting perpendicularly to the rotor axis, the adjusting mechanism having a slide guided in a linear guide, and the linear guide being arranged at an angle deviating slightly from the parallelism to the rotor axis, and the counter-blade body being arranged on the slide in such a way that the parallelism of cutting edge and cutting blade is ensured, or a U-shaped counter-blade body being provided, the legs of which are pressed apart elastically by pressure elements for setting the cutting gap. Furthermore, the invention relates to a method of setting the cutting gap between a rotor and a fixed cutting edge.

Abstract: A combined tool for edge-folding and trimming a rim of a panel includes a cutting blade rigidly secured to a tool holder frame, an edge-folding tool slidably received in the tool holder frame, and a biasing spring arranged in the tool holder frame to bias the edge-folding tool outwardly away from the holder frame. The tool is moved in a linear stamping direction, whereby the edge-folding tool folds back and then holds and compresses a margin of a panel workpiece. The tool holder frame and cutting blade are pushed farther in the linear stamping direction, while the edge-folding tool is pushed back into the tool holder frame and compresses the biasing spring, whereby the cutting blade cuts through and compresses the panel workpiece. This forms a back-folded, compressed, and trimmed rim of the finished panel in a single work step using an integrated edge-folding and cutting tool.

Abstract: A mechanism for cutting an elongated material, such as insulated wire or fiber optic cabling. The cutting mechanism includes a stationary blade housing that includes a recessed blade receptacle. The blade receptacle receives an insert blade that is biased outward by a bias element. A cutting blade having a pair of guide legs is movable relative to the stationary blade housing and insert blade such that a cutting edge of the cutting blade interacts with a cutting edge of the insert blade to sever the elongated material. The cutting blade is received within a blade guideway formed between the blade housing and an attached guide block. The blade guideway guides the movement of the cutting blade between its retracted position and its extended position. As the cutting blade moves to the extended position, the guide legs of the cutting blade contact an outer face surface of the insert blade such that the insert blade and the cutting blade retain the desired orientation.

Abstract: The present invention relates to a shear blade assembly for a shearing system. The shear blade assembly includes an upper shear blade and a lower shear blade. The top surface of the lower shear blade is inclined downwardly at an angle of between 0.2 and 0.5 degrees to the horizontal. The bottom surface of the upper shear blade is raked relative to the horizontal, longitudinally of the blades.

Abstract: A slotting tool to slot a workpiece and cut off a slotted scrap from the workpiece comprising a punch having a toe portion and a heel portion located higher than the toe portion and a slotting portion located between the toe portion and the heel portion; a die having a starting blade to punch out a tip portion of the slotted scrap from the workpiece by cooperating with the toe portion to shear the workpiece; side blades to slot the workpiece by cooperating with the slotting portion to slot the workpiece; a terminating blade to cut off the slotted scrap by cooperating with the heel portion; a scrap cutting blade mounted to the die, the scrap cutting blade located below the starting blade for cooperating with the toe portion to cut off a tip portion of the slotted scrap; and a scrap path formed in the die, the scrap path locating under the starting blade to receive the tip portion of the slotted scrap.

Abstract: A paper cutter is provided with a stationary blade and a movable blade unit. The movable blade unit is provided with a circular blade for cutting a rounded corner of a sheet of paper and a corner cutter blade for cutting the corner edge of the sheet of paper. The movable blade unit is inserted in a movable blade inserting hole provided in the stationary blade, the corner of the paper is inserted in a slit cut in the stationary blade which intersects with the movable blade inserting hole. During the cutting of the corner by the circular blade, the corner of the paper is tensioned between the circular blade and the corner cutter blade. As a result, the paper is cleanly and uniformly cut and the force required to cut the paper is decreased as compared to conventional paper cutters.

Abstract: A yarn cutting apparatus comprising a cutter body, piston and a cutting mechanism. The cutting body has a cylindrical bore extending from a first end to a second end and a body notch extending transversely from one side to the other side of the cutter body. The cutting mechanism comprises a first cutting element, having an element notch and a planar support surface and a planar cutting surface parallel with the support surface, slidably mounted in the cutter body to move within the cylindrical bore and a second cutting element resiliently mounted in the cutter body adjacent the body notch. The second cutting element has a cutting edge and a planar surface that is parallel with and in surface to surface contact with the planar surface of the first cutting element.

Abstract: A cutoff assembly for a form, fill and seal packaging machine having a fixed blade and a floating movable blade. The movable blade is adjustable horizontally with respect to the machine and the fixed blade so as to accurately cut off formed pouches, passing downwardly, in the vertical direction, through the machine.

Abstract: An apparatus for trimming folded multi-sheet printed products along the bloom edge and along each of the opposite side edges of each product. The apparatus comprises a first cellular wheel (2) which is mounted for rotation about a vertical axis and which receives the products in upwardly open cells and trims their bloom edges. A second cellular wheel (4) is mounted for rotation about a horizontal axis and receives the products from the first wheel in radially open cells and trims the products along their opposite side edges. Each wheel mounts first blade members (26;36) mounted along an edge of each cell, and a fixed counter blade (29;39) is provided which engages the first blade members upon rotation of the wheel. The wheel also includes an annular running surface (47), and the counter blade is connected to a guide member (46) which is positioned to engage the running surface.

Abstract: An apparatus for trimming folded multi-sheet printed products along the bloom edge and along each of the opposite side edges of each product. The apparatus comprises a first cellular wheel (2) which is mounted for rotation about a vertical axis and which receives the products in upwardly open cells and trims their bloom edges. A second cellular wheel (4) is mounted for rotation about a horizontal axis and receives the products from the first wheel in radially open cells and trims the products along their opposite side edges. The second cellular wheel (4) is divided, in a plane (40) perpendicular to its rotational axis, into two cellular wheel halves (4', 4"), which are mounted on respective bearing elements (32). The two bearing elements (32) can be adjusted relative to each other along the central axis (5).

Abstract: A cutting device includes a moving blade unit rotatable around a rotating shaft and inclined at a predetermined angle against a sheet feeding surface, a receiving blade unit which is movable in a direction towards the moving blade, and an elastic member for biasing a cutting edge of the receiving blade towards a cutting edge of the moving blade. Both cutting edges of the moving blade and the receiving blade are formed with a plastically deformed portion formed by press cutting. By ensuring that each second shear droop region formed in the plastically deformed portion of each cutting edge contacts the other second shear droop region of the other cutting edge, a roll-type paper inserted between the cutting edges can be easily cut.

Abstract: A high speed web cutter has a rotating roller with an extended bar mounted perpendicular to its surface and angled to be aligned askew with respect to the roller's axis. During the rotation of the roller, the bar interferingly contacts a plate having an angled edge that is mounted on a relatively stiff cantilever spring. The bar edge and the plate edge are not mounted parallel with each other nor are either of them parallel with the plane of the web. As the roller rotates, the extended bar deflects the cantilever spring, allowing the edges to intersect in a cutting intersection that travels axially with roller rotation, thereby severing a web member passing between the roller and the plate edge.

Abstract: A compensating link arrangement is operatively associated with one of two blades in a shear assembly. The angular position of the links may be selectively adjusted to alter a horizontal force component that counteracts a separation force associated with the blades during a cutting stroke. Additionally, a preload bias is provided by a spring to urge the blades together during the cutting stroke. The preload bias minimizes the gap between the cutting blades and provides a precise, burr-free cut of a work material. According to one arrangement, the compensating links are disposed on the lower blade or bed knife. Providing the compensating links on the bed knife is particularly useful in a servo-controlled version of the shear assembly since inertial forces associated with the servo-controlled, movable blade do not affect the bed knife.

Abstract: A yarn cutting apparatus comprising a cutter body, cutting means, and rigid stop means, wherein a line-to-surface contact is created between the cutting elements for cutting the yarn. The cutting means includes a slotted cutting element affixed to either the cutter body or a piston.

Abstract: A paper shear includes a flat disk with unsharpened edges pivotally mounted on an assembly carried by the printer carriage. The paper shear is pivoted between paper shearing engaged and disengaged positions relative to a shear platen. The mounting assembly includes a linear actuator and a mounting plate cooperable to pivot the paper shear into the engaged position at an extreme end of carriage travel and maintain it in the engaged position upon movement of the carriage in the opposite direction to shear the paper. The actuator and plate are then relatively displaced at the opposite extreme end of travel to pivot the paper shear into its disengaged position, whereby printing can be resumed.

Abstract: A printing mechanism is provided with a rotary cutter mounted on a printing trolley to enable a recording medium or document to be cut as the printing trolley moves during a printing operation. The recording medium is supported by a platen which has a counteracting edge cooperating with the rotary cutter and a control mechanism operates to actuate the rotary cutter between an active position for cutting and a lifted inactive position with a spring operating to apply a spring force against the rotary cutter tending to urge it against the counteracting edge.

Abstract: A construction for a paper or film cutter for use with strip printers or photo copiers working from continuous rolls of paper or film. It consists of a rotary blade and a stationary blade mounted in a sheet metal U-frame. The rotary blade is driven by a rotary solenoid which provides the inboard bearing for the rotary blade and which is resiliently mounted to the frame to allow for the alignment of the outboard bearing of the rotary blade. The stationary blade is loosely mounted in slots in the U frame. The slots are dimensioned and located to position the cutting edge of the stationary blade to be askew of and to intersect the cutting edge of the rotary blade to provide a cutting point of contact between the two blades. The cutting point of contact traverses the length of the two blades during the cutting stroke.

Abstract: A double blade rotary paper cutter is disclosed which may be used as an auxiliary unit with a controlled printer unit. The paper cutter features a series of cutting blades which effect the removal of fanfold or perforated portions and carrier strips from fanfold paper and a positional control mechanism to sequentially and precisely position individual strips of fanfold paper within the cutting area of blades of the rotary paper cutter.

Abstract: A hydraulic shearing machine for cutting steel sheets and the like in which the lower blade is fixed between two vertical end-plates of the frame while the upper blade is carried by a movable apron. The support provided for the lower cutting blade consists of a hollow box which extends horizontally between the vertical end-plates of the shearing-machine frame and only the ends of which are attached to the frame. The lower blade is fixed against one of the side walls of the support box so as to be displaced with respect to the theoretical center of rotation of said support box about its own axis. In consequence, the vertical forces exerted on the lower blade at the time of utilization of the shearing machine tend to produce a twisting movement of the support box, thus providing compensation for the horizontal flexural displacement of the box under the action of the horizontal forces.

Abstract: An apparatus for applying pneumatic force to a work piece comprising a pneumatic cylinder mechanism including a flexible diaphragm member for applying pneumatic force to a reciprocally mounted piston rod member for transferring force to a working tool element for applying working force to a work piece.

Abstract: A cutter for sheet materials, packing or cushioning materials, and the like, comprises an elongate, hollow cutter bar or housing having a spring blade pivotally mounted therein, with the upper edge of the blade positioned in a longitudinal slot in the bar. A circular knife is slidably carried on the bar, and includes a cutting edge which engages the blade to shear the sheet therebetween as the circular knife is moved along the bar. The blade is normally biased into a safety position, wherein the upper edge of the blade is retracted into the bar slot. Engagement between the circular knife and the blade automatically shifts the adjacent portion of the blade into a cutting position with the knife, wherein the upper edge of the blade is extended from the retracted, storage position to a cutting position, flush with the upper surface of the cutter bar to cleanly and evenly shear the material between the blade and the knife.

Abstract: In a spreading machine for laying fabric or other sheet material on a cutting table, a cutter box assembly is provided for cutting off the sheet material at the end of each layer spread. The cutter box assembly includes a housing mounted on the spreading machine carriage, a cutter frame movably mounted in the housing, a cutter disk rotatably mounted on said cutter frame, and drive apparatus for moving the cutter frame, and the cutter disk carried thereby, from one end of the housing to the other, when the machine carriage reaches the limit of its travel along the table. A spring-mounted pressure bar bears against the edge of the cutter disk, and the sheet material is fed between the cutter disk and the pressure bar. When the cutter frame is driven in a cutting stroke, the cutter disk rolls along said pressure bar and traverses the sheet material forcing its way through the material to perform a scoring cut and causing the material to part.

Abstract: A device for cutting a paper web includes a rotary blade assembly, a stationary or non-rotatable blade in cutting engagement with the rotary blade assembly and being retractable from the rotary blade assembly during the cutting engagement therewith, guide members supporting the non-rotatable blade for sliding movement in the direction of the retraction, and the non-rotatable blade being biased into cutting engagement with the rotary blade assembly.

Abstract: An improved envelope opener comprising first, second and third shear stations for shearing three edges of an envelope in sequence one edge at a time. Each shear station sequentially aligns the envelope by contacting the edge to be sheared, shears the contacted edge, and then releases the envelope. Each shear station includes a self-sharpening and self-aligning anvil assembly comprising a pivotable anvil which is spring-urged to an adjustable home position. The home position of the anvil is adjusted by means of a rotatable eccentric stop. During a shearing operation, the anvil is pivoted away from and then back towards the home position. An overly thick envelope will keep the anvil pivoted away from the home position to avoid a jam condition at the shear station. A peel back station downstream of the last shear station peels back the top panel of the envelope to expose the contents thereof.

Abstract: A paper web cutting device of a full rotation type comprises, in combination: a rotary cutter including a shank with rotary shafts at both ends, a cutting blade affixed to the shank, with its edge inclined circumferentially relative to the common axis of the shafts, a guide ring located at the cutting starting end of the blade and having a radius of rotation equal to that of the edge, and a second guide member located at the cutting terminating end of the blade and having a volute configuration, with its radius of rotation gradually decreased from the initial value equal to the radius of rotation of the edge; and a stationary cutter having a straight edge and supported in place by pivot pins at both ends, in such a manner that, at the cutting terminating end, the edge is graded to interfere slightly with the radius of rotation of the rotary cutter edge, the edge being forced by a spring to bear against the rotary cutter.

Abstract: A packaging machine is provided in which wire is fed for cutting into predetermined lengths for subsequent formation into U-shaped clips for clinching about a constricted product filled tube. It includes means for varying the length of the cut off portion by adjusting the position of a cut off knife along the wire against the biasing action of a cooperating wire receiving member or cut off round.

Abstract: A forage harvester has a cylinder type cutterhead and a plurality of feed rolls that feed crop material radially into the cutterhead over a shear bar normally positioned adjacent to the cutterhead in registry therewith. The shear bar is mounted for resilient yieldable deflection when the cutterhead strikes a foreign object to a deflected position wherein it permits the tangential expulsion of the foreign object at the shear bar.

Abstract: A combined printer and cutter for simultaneously cutting and printing on a record media such as a paper tape for a customer receipt, including a stationary knife blade and a rotary knife blade which, upon rotation, severs the tape therebetween. Rocker arms are provided for rotating the rotary knife through its cutting operation and to drive the print head from a position against an ink source to a position against the record media simultaneously performing the cutting operation so as to print a trademark or other indicia on the record media concurrently therewith. The stationary knife is itself the printing platen and the rocker arms are mounted on the rotary knife so that all forces involved in oscillating the rotary knife and rotating the print head are taken by this relatively large shaft.

Abstract: An improved microfiche reader-printer includes an electro-mechanical control mechanism, roll paper storage and feed mechanism, paper cutter and a corona paper charger unit in the upper portion of the machine. Disposed in the lower portion of the machine are a paper developer, dryer and discharge chute, a light source, microfiche carrier and an optical lens system. The optical system includes two moveably disposed mirrors selectively operable to project one selected fiche image either forwardly onto a viewing screen or rearwardly to an exposure station where a selected size paper is momentarily retained to permit exposure. The control mechanism functions to effect sequential operation of each of the machine elements whereby a selected fiche image is read and printed.