Abstract: A method and tool for producing workpieces with small corner radii in relation to the cutting thickness and with greatly reduced draw-in by precision cutting in a precision cutting tool includes clamping the workpieces between two tool parts consisting of a respective top and bottom cutting dies and of a top and a bottom cutting punch. The workpiece is machined in a one-stage arrangement in at least two successive cutting sequences in different cutting directions with the following partial steps: (A) cutting out a semifinished product, matched to the workpiece geometry, in a first cutting operation in a vertical working direction with slight draw-in, and (B) finish cutting of the semifinished product, produced in step (A), in at least one further cutting operation in a working direction opposed to step (A), wherein the draw-in of partial step (A) is filled again at least in the corner region.
Abstract: A machine for cutting a moving object comprises a conveyor belt for carrying the object along an advancement direction at a line speed and comprises a driving and cutting unit configured to move in a cutting cycle according to a forward phase in order to perform the cutting of the moving object, and configured to move according to a return phase in order to return into the initial position of the cutting cycle. The cutting machine further comprises a processing unit configured to generate a driving signal for controlling the movement of the driving and cutting unit with an acceleration trend wherein the maximum absolute value of the acceleration within the return phase is smaller than the maximum absolute value of the acceleration within the forward phase.
Abstract: An onion chopper includes a food reservoir supporting a blade tray and having a lid attached for pivotal movement toward and away from the lid and blade tray. The lid includes at least one grid of projections configured to push through a corresponding grid of blades in the blade tray to chop the onion. A cleaning grid is provided for attachment to the grid of blades. The grid of blades forms a peripheral skirt surrounding a lower container for collecting bits of chopped onion or other foods.
Abstract: The invention relates to a food comminution device which is designed to be placed on a worktop for a comminution operation, having an actuation part and having a base part which has a cutting part, wherein the base part and the actuation part are articulatedly connected such that the actuation part can, for pushing through food items to be comminuted, be pivoted from a loading position toward the cutting part into a closed position and subsequently from the closed position back into the loading position. The food comminution device is characterized in that the food comminution device has at least one drive device, in particular a spring drive, for assisting or effecting the pivoting movement from the closed position into the loading position and/or from the loading position into the closed position.
Abstract: A rotary cutter system for cutting a web of material being feed into the rotary cutter at a press speed that includes a cutting cylinder, an anvil cylinder and a servo motor. The rotary cutter includes a controller that controls the speed of rotations of the cylinders. Control of the speed of cutting and anvil cylinders allows for the adjustment of the cut length of the material without having to adjust the position of knives in the cutting cylinder.
Abstract: The present invention relates to a cutting assembly (10) for a hair clipping device (100), comprising: —a stationary cutting blade (12) having a first cutting edge (20), and a moveable cutting blade (14) that is resiliently biased against the stationary cutting blade (12) and has a second cutting edge (22) that is arranged parallel to the first cutting edge (20), wherein one of the cutting blades (12, 14) comprises at least one slot (42, 42?) for compensating a stress-induced warpage within said cutting blade (12, 14), wherein said at least one slot (42, 42?) extends substantially parallel to the two cutting edges (20, 22).
Abstract: A band saw blade may include a cutting edge defining a cutting plane and configured to engage a workpiece during movement of the band saw blade in a cutting direction, and a back edge located on an opposite side of the band saw blade relative to the cutting edge and defining a repeating back edge pattern. The back edge pattern may include, in sequential order, a ramp-down section defining an acute ramp-down angle relative to a plane parallel to the cutting plane, a first ramp-up section defining a first acute ramp-up angle relative to the plane parallel to the cutting plane, an intermediate section oriented at least substantially parallel to the cutting plane, a second ramp-up section defining a second acute ramp-up angle relative to the plane parallel to the cutting plane, and a spacing section oriented at least substantially parallel to the cutting plane.
Abstract: A method of manufacturing a machining tool in which an insert holder comprises a first surface, a second surface opposite the first surface, and a first insert tip slot extending between the first surface and the second surface. The first insert tip slot is configured so as to be compressed and densified to support a first insert tip. The insert holder further includes elevated projections extending from the first and second surfaces proximate the first insert tip slot.
December 23, 2015
Date of Patent:
June 5, 2018
GKN Sinter Metals, LLC
Alan Taylor, Virgiliu-Adrian Savu, Steven Aharrah
Abstract: A thin section preparation device includes: a cutting blade (21) which cuts out a thin section (M) from an embedding block (B); a storage tank (7) in which the thin section (M) is floated on a liquid (W) and is spread; a thin-section-conveying-mechanism (8) which conveys the thin section (M) in a direction intersecting in an X axis direction in a state where a first side of the thin section (M) is parallel with the X axis direction; a slide-glass-handling-mechanism (9) which places the thin section (M) floating in the storage tank (7) on a slide glass (G) in a state where a first side of the slide glass (G) is parallel with the X axis direction; and a rotary body (61) which is rotated in a state where the thin section (M) is placed on an outer surface and conveys the thin section (M) toward the slide-glass-handling-mechanism (9).
Abstract: A jam prevention mechanism includes a used tape guide with a guide surface along which a used tape fed out from a tape feeder is guided in a guide direction following a longitudinal direction of the used tape. A pressing member presses, against the guide surface, the used tape guided along the guide surface. A support member removably supports the pressing member.
Abstract: The invention relates to an interface between a knife and a knife holder, wherein the knife and the knife holder are designed such that the knife can be mounted on the knife holder in such a way that the knife is initially positioned on the knife holder in the axial direction, and then by rotating either the knife relative to the knife holder and/or the knife holder relative to the knife, the knife is locked on the knife holder with respect to the axial direction, wherein the knife has a single central fastening opening which is delimited by a knife edge region, and the knife holder has a fastening section for the fastening opening of the knife, which is delimited by a holder edge region.
Abstract: One or more embodiments concerns a stranded tensioning wire severing apparatus for stranded tensioning wires of steel, in particular stranded tensioning wires of prestressed concrete structures such as for example pylons of wind power installations, which is adapted to sever a bundle comprising a plurality of stranded tensioning wires in one working operation. One embodiment proposes that the apparatus has a housing, a cutting body arranged within the housing, and a plurality of passage openings corresponding to the plurality of stranded tensioning wires, which extend through the housing, wherein the passage openings are each penetrated by a slot adapted to receive the cutting body, and the cutting body has one or more cutting edges and is drivable in the housing movably in a cutting direction relative to the passage openings in such a way that the cutting edge or edges completely transit through the passage openings.
Abstract: A reciprocating saw includes a housing, a motor, and a drive mechanism. The drive mechanism includes a driven gear that is rotated by the motor. The driven gear is vertically-oriented within the housing and has an upper portion and a lower portion. The drive mechanism also includes a connecting rod coupled to the driven gear to translate rotary motion of the driven gear into reciprocating motion, and an output shaft coupled to the connecting rod to reciprocate relative to the housing through a cutting stroke and a return stroke. The drive mechanism further includes a counterweight coupled to the driven gear for rotation with the driven gear. The counterweight moves through the upper portion of the driven gear during the cutting stroke of the output shaft, and moves through the lower portion of the driven gear during a return stroke of the output shaft.
Abstract: The present disclosure is directed, in part, to a cutting apparatus comprising a drive shaft having a longitudinal axis, a drum configured to orbit the longitudinal axis when driven by the drive shaft, a first actuator, and a cutting assembly joined to the drum and configured to orbit the longitudinal axis with the drum. The cutting assembly comprises a second actuator operably engaged with a portion of the cutting assembly, and a cutting device driven by the second actuator. The second actuator is configured to rotate the cutting device at least 1,500 revolutions per minute during cutting of an article. The first actuator is operably engaged with a portion of the cutting assembly and is configured to reciprocate the cutting device in directions substantially parallel to the longitudinal axis as the cutting assembly orbits the longitudinal axis.
Abstract: A conveying device (4) for conveying rolled bar segments, continuously exiting from a cutting shear (3), comprising at least two conveying channels (10, 11) for conveying the bar segments; at least one separation wall (8) separating a first conveying channel (10) from a second conveying channel (11); and at least one fixed partition (9), provided below the wall (8) and which separates the first channel (10) from the second channel (11); the fixed partition (9) is configured so that, at speed, when a rolled bar is deviated to pass from a direction towards the first channel to a direction towards the second channel, the tail of a first bar segment (30) advances in the first channel (10) by passing below the fixed partition (9), while the head of a second bar segment (31) after the first segment (30) advances in the second channel by passing above the fixed partition.
Abstract: A rotary cutting apparatus including a frame, a die roll rotatably attached to the frame including a cutting member, wherein the cutting member includes at least one tensioning device and the tensioning device includes a body and a tip portion adjacent to the body, the tensioning device having an unsymmetrical profile.
March 14, 2013
Date of Patent:
April 17, 2018
SANDVIK INTELLECTUAL PROPERTY AB
Jacques Joseph Philippe Secondi, Pierre-Luc Paul Andre Dijon
Abstract: A safety razor for shaving back hair. A substrate structure at an end of an elongated back shaver handle opposite a grip end holds both a blade group and a support. The blade group has a sharp blade and a guard parallel thereto. The support can be either a blunt protrusion or another blade group. The blade group and the support are spaced a tactile discrimination distance from another blade group and support sufficiently wide enough to achieve two-point discrimination tactile feedback felt through a torso region of the skin of the user.
Abstract: A fly-cutting system is disclosed, and in particular one that comprises a dynamically-controllable actuator for controlling the position, orientation, or both position and orientation of a cutting element carried by a fly-cutting head. In certain embodiments, the actuator can adjust the position or orientation of a cutting element, or both, hundreds or thousands of times per second, enabling precise control over the shape of features formed by the cutting element in a surface of a workpiece.
October 5, 2015
Date of Patent:
April 10, 2018
3M INNOVATIVE PROPERTIES COMPANY
Alan B. Campbell, Dale L. Ehnes, Daniel S. Wertz
Abstract: A method and a device for fracture splitting a connecting rod and a connecting rod formed therefrom are provided, in which a force exerted on an outer rim of an eye of the connecting rod by a separating tool is generated by an electromagnetic force. The separating tool includes at least two separating members inserted into the eye, and the electromagnetic force is generated by displacing the at least two separating members away from each other inside the eye in response to application of the electromagnetic force. The electromagnetic force may be generated by passing current through coils positioned between the at least two separating members in a manner that causes the coils to repel one another, preferably with a pulse duration of less than 100 microseconds, in order to minimize plastic deformation at the fracture locations.