16652 results about "Knife blades" patented technology

A cutting device includes a base plate, a motor attached to the base plate, a driving cord including a first end and a second end, the first end being attached to the motor, and a cutting assembly. The cutting assembly includes a fixed blade that is fixed to the base plate, and a driven blade that moves with respect to the fixed blade. The second end of the driving cord is attached to the driven blade to move the driven blade with respect to the fixed blade when the motor rotates.

The invention relates to the technical field of grinding machining, and discloses a blade grinding wheel abrasion loss online compensation method which comprises the steps that a dynamic hexagonal detection grid is constructed based on the rotating phase of a grinding wheel, non-repeated high-density sampling is achieved through a Fibonacci spiral expansion path, a detection area is dynamically adjusted to reduce the overlapping rate, and the blade grinding wheel abrasion loss is obtained. Micron-sized wear transition is accurately captured; dispersing the abrasion loss into minimum compensation units, constructing a dynamic state equation in combination with grinding force, dressing displacement and workpiece errors, introducing an attenuation coefficient related to the service life of a dressing wheel, and automatically correcting a model drift error; a grading triggering strategy of residual uncompensated quantity is adopted, dynamic decision making of a processing period is combined, and through integral multiple compensation and a margin temporary storage mechanism, it is ensured that long-term accumulative errors are restrained at the submicron level while overmodulation oscillation is avoided. Through the synergistic effect of space-time coupling detection, discrete-continuous double-domain modeling and intelligent compensation decision, the grinding wheel abrasion compensation precision and the system stability are remarkably improved.

The present invention relates to a shear-foil-type cutter system for an electric shaver, said cutter system including an upper cutter having at least one field of perforations and a lower cutter pressed against said upper cutter having a particular dense blade geometry of the lower cutter and large overlap angle with the upper cutter,

The application provides a razor blade opening and closing control mechanism of a shaver and the shaver, the shaver has a razor assembly, the opening and closing control mechanism has: a cover, a rotating part and a first connecting structure are arranged, the razor assembly of the shaver is connected with the cover; a supporting piece, a rotating connecting part matched with the rotating part is arranged, the cover can rotate relative to the supporting piece; a push and twist piece is connected with the cover and can move relative to the supporting piece, the push and twist piece is provided with a second connecting structure matched with the first connecting structure. The razor blade opening and closing control mechanism of the shaver provides an opening mode completely different from the existing razor blade opening and closing control mechanism, the noise is small when opening, and the defect that the razor blade will immediately pop out due to the mistaken touch of the razor blade is reduced through the arrangement of the opening and closing control mechanism.

A non-disposable dermaplane razor having a main body, including a handle portion and a cartridge retention portion, a replaceable blade cartridge and, optionally, a removable cover. The cartridge retention portion has a cartridge opening comprising a T-shape having an upper portion and a stem portion extending longitudinally inward from a front face to receive the blade cartridge with an open slot at the bottom of the stem portion, the cartridge including a spine comprising an I-shape with the top horizontal portion and vertical middle portion of the I-shape corresponding to the upper portion and stem portion of the T-shape of the opening, and the bottom horizontal portion of the I-shape extending beyond the slot.

An auto opening folding knife having a blade pivoted from a closed position to a spring urged release open locked position with a combined self-activating sliding auto release and locking arm. The sliding auto release and locking arm is mounted within the knife handle on dual fixed guide and pivot pins within respective arm openings being spring urged there against. Arm positional projections are engaged on a modified blade shank during operation moving the locking arm back and up then releasing to slide forward locking the blade in auto open use position until manual arm engagement by the user against the arm spring and blade spring for release and transitional closure.

A hedge trimmer and a tool assembly for assembling a blade assembly are provided. The hedge trimmer includes a housing at which a motor is disposed. The blade assembly extends from the housing and includes a blade component forming a blade opening through which a fastener is extendable. A retainer forms a retainer opening through which the fastener is extendable. A second spine opening at a spine extends from a first spine opening at the spine. The second spine opening forms a narrower cross section relative to the first spine opening. The fastener is extendable into the second spine opening from the first spine opening. The retainer is positioned between the spine and the blade component.

The assisted opening knife uses hardened handle inserts to reinforce the knife handles to prevent deformation and damage to the handles due to the blade impacting stop pins upon opening. The knife includes a blade pivotally connected between left and right handle members for rotational movement between open and closed positions. The handle inserts are mounted to the handle members and are seated within a recessed area formed on the interior face of the handle members. The handle inserts securely supporting the stop pins, which seat in holes formed in the handle inserts. Due to the hardened material, the handle inserts prevent deformation and damage to the softer handle members from impact of the blade against the stop pins.

The invention discloses a mirror surface paperboard slitting device and method. The device comprises a treatment bin, an air flotation conveying mechanism, a slitting mechanism and a dust collection body. The air floatation conveying mechanism sprays an air film to the bottom face of the paperboard through a first air conveying structure and a second air conveying structure which are symmetrically arranged, and sprays an air film to the top face of the paperboard through a first air pressure structure and a second air pressure structure, and double-face non-contact conveying is achieved. The slitting mechanism adopts a servo motor to drive a helical tooth column for meshing transmission, a belt pulley transmission main body drives a blade to rotate, and vertical and front-back position adjusting assemblies are integrated and matched with a blade bottom cambered surface supporting wheel to provide anti-deformation support; the dust collection body is arranged in a front-arranged mode to absorb slitting dust in real time. The method comprises the steps of paper jam release, double-sided air flotation starting, limiting adjustment, multi-dimensional slitting control, synchronous dust collection and finished product storage. The problems of mirror surface damage, insufficient slitting precision and dust pollution are solved, and the slitting quality and efficiency are remarkably improved.

A cutting insert includes a rake face, a flank face, and a cutting edge constituted of a ridgeline between the rake face and the flank face. The cutting edge has a first cutting edge portion for corner processing, a second cutting edge portion for low cut-in pulling processing, a third cutting edge portion for high cut-in pulling processing, a fourth cutting edge portion for finished-surface processing, a first connection cutting edge portion, a second connection cutting edge portion, and a third connection cutting edge portion. The fourth cutting edge portion is disposed between the first cutting edge portion and the second cutting edge portion. The second cutting edge portion is disposed between the fourth cutting edge portion and the third cutting edge portion. Each of the first cutting edge portion, the second cutting edge portion, and the fourth cutting edge portion has a curved shape.

The utility model relates to a cervical conization knife, and belongs to the field of gynecological operation instruments. Comprising a knife handle and a detachable blade. And the front end 2 of the knife handle tilts and forms an angle with the longitudinal axis of the handheld end 1 of the knife handle. According to different angles between the longitudinal axis of the front end 2 of the scalpel handle and the longitudinal axis of the handheld end 1 of the scalpel handle, the scalpel is divided into three models of A, B and C which are respectively at angles of 27 degrees, 31 degrees and 37 degrees. The cross section of the blade body is arc-shaped, the radian is consistent with that of the cervix uteri, the arc length is 1 / 8 of the circumference of the cervix uteri, namely 1cm, the two sides of the blade are both blade faces 3, the front ends of the blade faces 3 converge to enable the blade tip 4 to be an arc-shaped triangle, the rear end 5 of the blade is a parallel blunt face, and the longitudinal axis of the blade is provided with scales 6. Compared with a traditional cold knife, the novel cervical cold knife can be applied to gynecology cervical cold knife conization, surgical operation is facilitated, a cut cone can be regular, cervical injury is reduced, and the shape and the function of the cervix are reserved to the maximum extent.

The invention belongs to the technical field of pipeline inner wall cleaning, and particularly relates to a self-adaptive pipe diameter adjusting type petroleum oil pipe intelligent cleaning robot which comprises a shell, and the shell is composed of a left shell body and a right shell body which are the same in structure. According to the supporting mechanism, a bidirectional threaded rod linkage structure hinged through a universal joint is adopted, and an electromagnetic cylinder and a moving block are matched to cooperatively control supporting legs to stretch out and draw back dynamically, so that the device is adaptive to different pipe diameters and bent pipe forms, and the device can be stably attached in a round pipe, an oval pipe or a bent pipe; the driving mechanism is based on bevel gear transmission and is combined with a radial pressure compensation mechanism to realize the multidirectional moving capability of vertical climbing and horizontal propelling; the exploration mechanism is integrated with a two-degree-of-freedom holder, and the cleaning process is monitored in real time through axial looking and radial pitching scanning in cooperation with self-adaptive light supplement; the cleaning mechanism innovatively integrates a rotary cutting drill bit, an adjustable blade set and a high-speed brush roller, the operation radius is dynamically adjusted through an extension rod, and stubborn scaling crushing, pipe wall scraping and chipping sweeping are synchronously completed.

A shaving razor system having a shaving razor handle that includes a proximal end, a distal end, an upper surface extending between the proximal end and the distal end. The upper surface having a generally convex profile. The shaving razor handle has a lower surface extending between the proximal end and the distal end, the lower surface has a generally concave profile. A shaving razor cartridge releasably is mounted to the proximal end of the shaving razor handle. A cartridge ejection button is positioned on the lower surface towards the proximal end.

A cutting tool for turning includes a cutting insert having a cutting edge, a holder for holding the cutting insert, a wireless communication unit for transmitting information based on a measurement result of a sensor attached to the cutting tool, an acceleration sensor installed in the holder, and a control unit for performing first control for controlling activation of the wireless communication unit based on the measurement result of the acceleration sensor.

A drilling and fixing device for hollow walls or panels comprising a front plate or stop 10 for resting on the panel surrounding and allowing access to the hole in which the device fits, a mounting body 20 forward of the plate and a pivoting arm 40 mounted on the body. The pivoting arm has a cutting surface on the forward part of the arm and is moveable from a rear position in the mounting body in which its axial direction is fixed to allow a hole to be drilled in the panel and a forward position in the mounting body in which position it can pivot to lie approximately horizontal to the panel when in use. The movement into the forward position and the pivoting of the arm can be brought about by the insertion of a screw through the front plate. The screw may engage the mounting body to pull it back, with the arm until the device is secure in the hole. The device may have two arms where the blades on the forward ends overlap when in the rear position to cooperate in the drilling process.

A bedding clip is provided that includes a pair of bodies that are substantially identical, each having a blade portion and a handle portion, with a hinge assembly formed on a front face of the blade portion that engages the hinge assembly of the other of the pair of bodies to form a working hinge configured to permit the one body to rotate about the working hinge relative to the other between an open and a closed position. Latching elements formed on the handle portions of the bodies engage each other in the closed position and pluralities of teeth formed the blade portions interleave while in the closed position. The bedding clip is sized and configured to be attached to bedding and to prevent the bedding from becoming untucked from a bed during use.

A rotatable tool which may include a blade, handle, a multi-positional radially rotating placement system, a spring bias lock mechanism, and a user activated unlock mechanism, and the like. Methods of use thereof by a user or other persons, possibly for instances such as self-defense, survival, cutting, perforating, slicing, sawing, chopping, tradecraft, or the like are also included.

A blade includes a body having a cutting portion with an edge and a plurality of cutting teeth sequentially aligned along the edge. Each cutting tooth of the plurality of cutting teeth is formed from a corresponding one of a plurality of carbide inserts that is discretely resistance welded to the edge. The body includes at least 15 teeth per inch.

A powered fastener driver including a driver blade movable from a top-dead-center position to a bottom-dead-center position for driving a fastener into a workpiece. A driver may include a lifting assembly for providing torque to move the driver blade from the bottom-dead-center position toward the top-dead-center position, the lifting assembly including a rotary lifter configured to be selectively engageable with the driver blade, the rotary lifter having a plurality of lift pins and a roller disposed on at least one of the lift pins, wherein the roller includes a plurality of cam portions defined by cup-shaped recesses having a first radius oriented parallel to a rotational direction of the roller and a second radius perpendicular to the first radius, and wherein the driver blade includes a lift tooth having a crown disposed thereon, the crown configured to be engaged with at least one of the plurality of cam portions.

The invention discloses a method and tool capable of improving the glue joint quality of a sharp corner area of a composite workpiece, and relates to the technical field of composite workpiece machining. The method comprises the following steps of prefabricating the corner filler, notching the corner filler, pre-filling a sharp corner area, assembling and curing. The tool comprises two R positioning plates which are arranged in an overlapped mode, the upper edges of the opposite faces of the two R positioning plates are matched with the side walls of the two sides of the finished corner filler respectively, a blade clamped and fixed through the R positioning plates is vertically arranged between the two R positioning plates, and the upper end of the blade extends to the positions above the upper edges of the opposite faces of the two R positioning plates. According to the method and the tool capable of improving the glue joint quality of the sharp corner area of the composite material workpiece, the sharp corner area is ensured to be fully filled by optimizing the shape of the corner filling material and a pretreatment process, so that cavities are thoroughly eliminated, and the glue joint quality and reliability of the sharp corner area of the composite material workpiece are improved.

The utility model relates to the technical field of engineering plastic processing, and discloses a cutting device for plastic part processing, the cutting device comprises a base, the base is rotatably connected with a workbench through a rotating assembly, the top of the workbench is symmetrically provided with clamping assemblies, and the rotating assembly comprises a rotating motor fixedly installed on the bottom wall of the base; an output shaft of the rotating motor is fixedly connected with a worm, one side of the worm is connected with a worm gear in a meshed mode, and a connecting shaft is fixedly installed in the worm gear. By starting the cross sliding rail and the rotating motor, the rotating motor can drive the worm to rotate, the worm is meshed with the worm gear to push the connecting shaft and the workbench to rotate, the cutting angle of the part is adjusted, the cross sliding rail can push the cutting motor and the cutting blade to move, and the cutting position of the part is adjusted; and parts of different sizes can be cut, and the practicability of the device is improved.

The utility model relates to a mowing machine cutter head structure which comprises a cutter head body, the cutter head body comprises a cutter head top wall and a cutter head peripheral wall formed by extending downwards from the edge of the cutter head top wall, and a cutting space is formed by the cutter head top wall and the cutter head peripheral wall; at least one mounting opening is formed in the top wall of the cutter head at intervals, a power driving assembly is arranged in the mounting opening, and a cutting blade is connected to the power driving assembly and located in the cutting space; a grass discharging opening is formed in one side of the peripheral wall of the cutter head, and the axial direction line of the grass discharging opening is located on the tangential direction line of rotation of the cutting blades. The straw discharging device has the effect of improving the straw discharging flow.

An earth-boring tool may include a tool body, at least one blade, and a roller cone pocket defined in the tool body adjacent the at least one blade. A surface of the roller cone pocket may define at least one protruding ridge. The earth-boring tool may further include a roller cone assembly disposed in the pocket. The roller cone assembly may include a plurality of inserts or teeth extending from a surface of the roller cone assembly. The at least one protruding ridge is located between longitudinally adjacent inserts or teeth.

The quick tool changing device convenient for motor part machining comprises a main tool body, blade grooves are formed in the two ends of a rotating body, and turning blades are fixed in the blade grooves through locking screws; a cylinder at the bottom of the rotating body is in clearance fit with a tool pad and a hole in the main tool body, the main tool body is provided with a cylindrical ejector rod, and the cylinder at the bottom of the rotating body abuts against the cylindrical ejector rod and is locked through a bolt on the outer side of the main tool body. A key is arranged below the rotating body and is in contact positioning with a key groove in the plane of the cutter pad, and the main cutter body internally comprises an upper spraying pipe on the upper portion of the main cutter body and a lower spraying opening in the front end of the main cutter body. An inner cooling device in the main cutter body sprays cooling liquid to the cutting edge through an upper spraying pipe and a lower spraying opening, the problem of machining overheating is solved, the cutting performance is improved, cuttings can be washed away through high-pressure cooling water, and the problem of long cuttings is solved; and the rotating body with the positioning key can realize a quick tool changing function.

A cutting device for manufacturing lead tabs of a secondary battery disclosed herein cuts a band-shaped metal lead strip which is continuously supplied. The cutting device for manufacturing lead tabs of a secondary battery includes: a stud part; a punch having a blade tip integrated with the lower portion of the stud part; and a die having an upper surface, which is supplied with the metal lead strip, and a pocket, which the blade tip enters and exits when cutting the metal lead strip supplied to the upper surface. The punch and the die cut the metal lead strip to form metal terminals, and at the same time, cut the edges on both sides of the cut surface so that the edges have a smooth curvature.

A representative system for preparing a field for planting includes: first disk blades, each exhibiting a first offset angle with respect to a tilling direction; second blades, each exhibiting a second offset angle with respect to the tilling direction; ripper shanks disposed behind the second disk blades; third disk blades disposed behind the ripper shanks, each exhibiting a third offset angle with respect to the tilling direction; fourth disk blades, each exhibiting a fourth offset angle with respect to the tilling direction; and a chopper reel disposed behind the fourth disk blades; wherein, with respect to magnitude, each of the first offset angle and the second offset angle is greater than each of the third offset angle and the fourth offset angle.

The invention relates to the technical field of agricultural machinery, in particular to an agricultural planting straw smashing and returning device which comprises a bent top plate, a connecting frame fixed to one side of the top end of the bent top plate and a smashing roller rotationally installed in the bent top plate in a penetrating mode. According to the cleaning assembly, the defects that in an existing straw smashing and returning device, straw chippings are attached to gaps of blades and the inner wall of a machine shell to form viscous blocks, and manual disassembling and cleaning are needed are overcome, efficient and automatic cleaning is achieved through an innovative mechanical linkage structure, and by means of intermittent rotation of a smashing roller, a linkage installation frame and a cleaning block synchronously reciprocate; the human-shaped cleaning groove matched with the human-shaped blade is utilized to accurately abut against and erase residual scraps on the surface of the blade, and the problem that a traditional scraper cannot remove stubborn attachments is thoroughly solved. Cleaning operation is automatically completed in the whole process without disassembling the cutter shaft or opening the machine shell, efficiency loss caused by manual disassembling is avoided, and the continuous operation capacity of equipment is remarkably improved.

The invention discloses a milling cutter workpiece feeding device of a milling cutter welding machine, and relates to the technical field of milling cutter welding. By arranging the rotary table, the multiple milling cutter clamping assemblies and the feeding control assemblies, when the rotary table rotates, each milling cutter clamping assembly can load the milling cutter assemblies to sequentially pass through the feeding control assemblies at multiple positions, and when the milling cutter clamping assemblies meet the feeding control assemblies, the milling cutter assemblies can be loaded on the feeding control assemblies to sequentially pass through the feeding control assemblies at multiple positions; the feeding control assembly can be triggered and control the blade to be automatically assembled to the cutter groove, and after the blade and the cutter groove are assembled, the electric arc welding mechanical arm can be automatically controlled to weld the blade according to a preset program. After one feeding control assembly completes welding, 120-degree overturning can be completed when the feeding control assembly meets the other feeding control assembly, blade welding operation can be automatically conducted on the next cutter groove, and therefore automatic overturning of the milling cutter assembly, automatic assembly of the blade and the cutter groove and automatic switching of the welding position can be achieved; the purpose of automatically welding the milling cutter assembly is achieved.

The invention discloses a recessing machine which comprises a machine frame, a sliding seat is movably arranged on the machine frame, and the sliding seat can move linearly. The device is characterized in that the device further comprises a supporting seat which is movably arranged on the sliding seat; the first driving assembly can drive the supporting seat to move horizontally; the number of the first knife rests is at least two, and the first knife rests are movably arranged on the supporting base; the number of the second tool rests is at least two, and the second tool rests are movably arranged on the supporting base; each first knife rest is provided with one first guide wheel assembly; each second knife rest is provided with one second guide wheel assembly; according to the invention, the different dadoing blades are used for alternate dadoing, so that the dadoing effect can be ensured.