579 results about "Annular cutter" patented technology

The invention discloses a disposable automatic safety circular anastomat, which relates to a circular anastomat provided with an automatic safety device. The invention belongs to a surgical operation instrument, and is particularly suitable for end-to-end, end-to-side and side-to-side cutting, sealing and stump cut anastomosis in alimentary tract operation of the esophagus, the stomach, the intestinal tract and the like. The disposable automatic safety circular anastomat comprises a nail butting seat component, a nail compartment component, an aluminum bended pipe, a bended push rod component, a movable handle component, a regulation screw nut component, an automatic safety device and a fixed handle component, wherein the bended push rod component comprises a bended push rod, a guide shaft, a connecting sheet, a lead screw, a regulation block, a regulation screw and a press sheet, the bended push rod component is sheathed and arranged in the aluminum bended pipe, the nail compartment component comprises a nail compartment sleeve, a nail compartment, a nail pushing sheet and an annular cutter, the nail butting seat assembly comprises a nail butting seat, a jump ring pipe, a jump ring and a nail butting seat cover, and the automatic safety device comprises a safety positioning plate, a safety positioning plate reset spring, a safety positioning plate reset spring pin, an indication block, an indication block transmission plate, an indication block transmission reset spring and an indication block transmission plate positioning pin.

A device and method for installing an anchor in a bone of a patient employs an anchor body having expandable side walls in a tapered shape with retention members on their external surfaces, and an expansion member within the anchor body which is pulled to an engaged position where it presses on the inside of the side walls to expand them outwardly to engage the retention members with the bone walls of a borehole in which the anchor body is inserted. Preferably, the anchor body is sectioned by slits to form expandable side wall sections below an expansion joint or deformation wrinkle. The side walls have containment ring sections at their distal ends for retaining the expansion member inside the anchor body. The expansion member may be formed as a conical plug with a central aperture and tab recesses on its underside for insertion of an elongated scissors-type instrument with movable prongs that engage into the tab recesses of the expansion plug. Alternatively, the expansion tool can have a threaded tip for threading in a threaded bore formed in the expansion plug. The anchor body may have guide ribs that fit in slot recesses in the expansion plug member for guiding its movement. The guide ribs may be formed as hollow tubes to allow insertion and squeezing together of the straight ends of a removal tool to dislodge the expansion member in the event removal is desired. The retention members may be formed as annular cutter blades. The anchor body may have an anchor plate at its proximal end to align and bond the anchor body with the bone surface.

A hole cutter machine tool combines the characteristics and properties of a low-cost hole saw with the speed and performance of an annular cutter. The hole cutter comprises a cutter ring portion similar to an end portion of existing annular cutters with a carrier portion similar to the cup of a hole saw. In one embodiment the hole cutter has a threaded aperture which enables use with a standard hole saw arbor or with a replaceable arbor having an annular cutter shank. An embodiment of the method of making the hole saw includes a joining process in which the cutter ring is simultaneously attached to the carrier portion and heat treated.

An electric drill apparatus having a low profile is provided which comprises an annular cutter, a motor for rotating the annular cutter, a rotary shaft assembly for rotating the annular cutter attached to its leading end about a rotating, a rotation reduction mechanism disposed between the motor and rotary shaft assembly for transmitting a driving force of the motor to the annular cutter through the rotary shaft assembly, a feed mechanism responsive to an operation of a manual handle, for moving the rotary shaft assembly along with a straight line to advance or retract the annular cutter attached to the rotary shaft assembly with respect to a workpiece, and an adhesion base for securing the electric drill apparatus to the workpiece. The annular cutter has a plurality of cutting blades comprised of cemented carbide tips fixed on its lower end, thereby it is capable of rotating at a high speed. The rotary shaft assembly has a rotating shaft which rotates in a direction different from that of a rotating shaft of the motor, thereby the drill apparatus has a low profile.

A loop cutter knife fixture for cutting vegetable products such as raw potatoes into spiral or helical loops. The knife fixture includes a circular blade holder adapted to be rotatably driven within a vegetable product flow path. The blade holder includes a central core cutter in combination with a spiral base plate defining a radial slot between axially spaced upstream and downstream ends thereof. Small slits are formed in this base plate for seated reception of preferably multiple U-shaped strip blades, which are in turn overlaid and clamped in place beneath a generally pie-shaped slab blade having a sharpened knife edge exposed at the base plate radial slot and held in place by preferably multiple clamp screws. The strip blades and / or the slab blade are formed from an inexpensive material, such as sheet metal or the like, whereby blade changeover is quick and economical.

The invention discloses a method for determining constituents of soil at a tailings mining area. The method comprises the following steps: firstly, carrying out soil sampling; and secondly, determining the physical properties, the chemical properties and the biological constituents of the sampled soil. The soil sampling comprises the following specific processes: digging a soil profile at a sampling point; carrying out layering by the sizes of 0-5cm, 5-10cm, 10-20cm, 20-40cm and 40-60cm; and then carrying out layered sampling on the soil respectively with an aluminum box, an annular cutter and a soil bag. By the method for determining the constituents of the soil at the tailings mining area, reliable data can be provided for the improvement on the ecological environment of the tailings mining area, and therefore the method is beneficial for the sustainable development of society, economy and environment of the tailings mining area.

The invention relates to a remodeling fine grain soil test sample preparation device. The remodeling fine grain soil test sample preparation device is characterized in that a lower pressing plate (11) is provided with a sample preparation device consisting of a cover plate (1), a base (2) and a sample preparation cylinder (3); the lower end surface of the cover plate (1) is connected with a water permeable stone (4) as well as a sample preparation annular cutter (6); the cover plate (1) is internally provided with an air exhaust hole (8); an upper pressing plate (12) is provided with a pressure device (9). A wet soil sample is put into a sample preparation room; the pressure device presses a soil body into the annular cutter, and a prepared test sample annular cutter is taken out, and soil samples at two ends of the annular cutter are cut evenly, and the test sample preparation operation is completed. The remodeling fine grain soil test sample preparation device provided by the invention has the advantages that the problems of remodeling soil preparation unevenness and test sample dimension restriction are solved, and the problem of air exhaust during the fine grain soil sample preparation process is solved; the dry density of a test sample is controllable, and the prepared test sample has less errors; the operation is convenient; the sample discharge is simple; the preparation is rapid.

The invention discloses a multistage anchoring type resin anchor rod and an anchoring method of the multistage anchoring type resin anchor rod. The multistage anchoring type resin anchor rod comprises an anchor rod body and an orifice pretensioner. Point anchoring sections are arranged on the anchor rod at intervals. Other sections are free sections. According to the point anchoring sections, tooth-shaped annular cutters are machined at the positions, provided with the point anchoring sections, of the anchor rod body. The tooth-shaped annular cutters are sleeved with two-component anchoring resin cartridges. The two ends of each two-component anchoring resin cartridge are sleeved with isolation gaskets. Accordingly, the anchor rod body is sequentially divided into the first free section, the first point anchoring section, the second free section, the second point anchoring section, the third free section and the third point anchoring section from an orifice, and it is required that the first free section is located in a surrounding rock loose area, the third point anchoring section is located in a surrounding rock elastic area, and other sections are located in a surrounding rod plastic area. The number of the point anchoring sections, the number of the free sections and the lengths of all the sections can be adjusted according to the surrounding rock pressure distribution characteristics, loads are dispersed, ultra-strong stress concentration is prevented from happening to the ends of the anchor rod, and the anchor rod body is prevented from breaking or being pulled out.

The invention discloses a cutter for cutting a rolling brush entanglement on a cleaning appliance. The cutter comprises a blade and a cutter rest, wherein the blade is used for cutting the entanglement on the peripheral wall of a rolling brush, connected with an annular cutter head and arranged on the inner ring of the annular cutter head; and the annular cutter head is nested into the cutter rest and has the degree of freedom of rotating along the own axis in the cutter rest, and a limiting structure for limiting axial movement of the annular cutter head is arranged between the cutter frame and the annular cutter head. At least one groove extending axially is formed in the peripheral wall of the rolling brush, the blade extends radially and is inserted into the groove. A fixing and guiding mechanism is provided with a sliding rod arranged in parallel beside the rolling brush and guided axially and a lead screw for outputting axial displacement, and the cutter rest is provided with holes matched with the sliding rod and the lead screw. The invention further provides a cleaning appliance. The cutter automatically cuts the entanglement without exposing the rolling brush, thereby improving the cutting environment and improving the cleaning effect and efficiency.

The invention relates to a constant-volume and temperature-controllable axial and radial soil body expansibility tester and belongs to the technical field of manufacturing of geotechnical engineering measuring instruments. The device comprises a multifunctional testing barrel, a core taking system, a fixed support, a force measurement assembly, an end cover, a water conveying and discharging system, a heating and drying system and a permeable element, wherein the multifunctional testing barrel is internally provided with a heating coil hole, a permeable stone and an axial pressure sensor; the core taking system comprises an annular cutter fixing frame and an annular cutter; the force measurement assembly comprises an axial pressure sensor and a radial pressure sensor; the end cover is fixedly connected with the testing barrel by a bolt; and the heating and drying system comprises a heating coil, a temperature controller and a drying frame. Compared with the prior art, the constant-volume and temperature-controllable axial and radial soil body expansibility tester has the advantages that the volume of a soil sample keeps unchanged in a testing process and the temperature can be controlled; and meanwhile, the axial and radial expansibility time interval curves of the soil sample can be obtained at the same time, so that the soil sample can be rapidly dried, the dry-wet circulating testing time is saved and the operation is simple.

The invention discloses a manual type anorectal surgery magnetic ring anastomat which comprises an upper magnetic ring shell, an upper magnetic ring is embedded and fixed in a cavity of the upper magnetic ring shell, and a plurality of upper magnetic ring shell clamping grooves are formed in the ring wall of an inner hole of the upper magnetic ring shell. Each upper magnetic ring shell clamping groove can be connected with a correspondingly-arranged claw clamp in a clamped mode, and the claw clamps are commonly fixed to a clamping claw through claw petals. A notch is formed in the side wall of the lower end of the clamping claw, and a lower magnetic ring shell is oppositely arranged below the upper magnetic ring shell. A lower magnetic ring capable of being attracted to the upper magnetic ring is embedded and fixed in a cavity of the lower magnetic ring shell, and the lower magnetic ring shell is embedded in a groove in the upper end of a handle through transition fit. A push rod is arranged in the handle, an annular cutter is arranged at the upper end of the push rod, a driving shaft penetrates through a middle hole of the push rod, the top end of the driving shaft is fixedly connected with the bottom end of the clamping claw, the lower portion of the driving shaft is connected with a vertical driving mechanism, and the lower end of the push rod is connected with the handle. The manual type anorectal surgery magnetic ring anastomat is simple in structure and convenient to operate.

The invention relates to the technical field of tunnel construction, in particular to a modular TBM cutter disc capable of performing variable diameter expanding excavation. The modular TBM cutter disc capable of performing the variable diameter expanding excavation comprises a quadrilateral structural centre cutter disc module which is provided with a centre rotary body, and fan-shaped structuralperipheral cutter disc modules which are arranged around the four sides of the centre cutter disc module; the four peripheral cutter disc modules are respectively positioned on the four sides of thecentre rotary body so that an annular cutter disc is formed; the centre cutter disc module is connected with each peripheral cutter disc module through two ejecting and pushing oil cylinders; the baseof each ejecting and pushing oil cylinder is fixedly mounted on the centre cutter disc module; a piston rod head of each ejecting and pushing oil cylinder is fixedly mounted on the corresponding peripheral cutter disc module; each ejecting and pushing oil cylinder is positioned on one side, close to a soil warehouse of a rounding cutter disc, so that the variable diameter expanding excavation canbe realized by pushing the peripheral cutter disc modules through the ejecting and pushing oil cylinders, and an excavation line is properly expanded so as to reserve a deformation amount; and therefore, the problem that large-deformation expanding excavation of soft rock with high crustal stress in tunnel construction is effectively solved.

A plastic bottle cutter comprises a working operation table, a transverse bottle pushing machine and an annular bottle cutting machine. A push-pull machine frame is arranged at one end of the working operation table. A cutting machine frame is arranged at the other end of the working operation table. The transverse bottle pushing machine is installed on the push-pull machine frame and structurally comprises a positioning sleeve, a telescopic ejector rod and a telescopic driving machine. A bottle mouth opening and closing clamp is arranged at one end of the telescopic ejector rod. The annular bottle cutting machine comprises a wheel type cutter rest, an annular cutter and a rotary wheel driving machine. Plastic bottles are cut into various specifications of plastic strips through the annular cutter, the plastic strips are used for weaving vegetable baskets, shopping bags, package bags, foot pads, vehicle mats and other daily supplies, environment pollution can be reduced, and life of people can be facilitated. Thus, the plastic bottle cutter is reasonable in structure, easy to control and capable of increasing the plastic bottle reuse rate.

The invention relates to a disposable guide type anorectal hemorrhoid anastomat, which is suitable for being used as an anorectal hemorrhoid incising and sewing surgical instrument. The disposable guide type anorectal hemorrhoid anastomat comprises an abutting nail seat, a pad cutter ring, an abutting nail piece, a nail bin, an annular cutter, a needle pushing piece, a needle bin cover, a positioning shaft, a connecting pipe, an aluminum pipe, a locking ring, a reset spring, a push pipe, a screw, an indication shield, an indication block, an indication pull piece, a spring I, a bolt, an adjusting pipe, a fixing handle, an adjusting knob, an safety card, a spring II, a top post, a moving block, a safety block, a positioning pin I, a support rod, a sounding block, a positioning pin III, a movable handle, a positioning pin II, a torsion spring, a sewing needle and a movable handle shield; the left end of the movable handle is movably connected with the right end of the support rod of which the left end is movably connected with the fixing handle; the moving block is fixed on the screw; the adjusting pipe is matched with a threaded section at the left end of the screw by the top post; the adjusting knob is fixed at the left end of the adjusting pipe.; the sounding block is fixed in a sounding block mounting groove of the fixing handle, and the safety block is movably connected with the fixing handle.

The invention provides an aero-engine blisk annular cutter machining method based on a control line, and relates to the field of numerical control machining. By means of the control line, the cutter location point and the cutter-axis vector of an annular cutter for cutting blades of a blisk are calculated, the milling cutter location track of the blisk is planned, and the method is applied to blisk machining. According to the method, cutter path planning of blisk channel annular cutter four-axis machining based on the control line is completed, and the control line method is applied to annularcutter machining. The method remarkably improves the machining surface quality of the blisk, improves the machining efficiency and reduces working hours and the machining cost; besides, the service life of the cutter is prolonged, so that it is possible that the cutter completes machining of the surface of one blade of a large-size fan blisk before excessive abrasion, and the phenomenon that cutter connection marks are obvious due to partitioned machining is avoided.

The invention discloses a rolling brush entanglement cutting device for a cleaning appliance. The device comprises a blade and a fixing and guiding mechanism, wherein the blade is used for cutting the entanglement on the peripheral wall of a rolling brush; and the fixing and guiding mechanism is independently arranged outside the rolling brush and used for fixing the blade and guiding moving and cutting of the blade along the axis of the rolling brush. At least one groove extending axially is formed in the peripheral wall of the rolling brush, and the blade is inserted into the groove. The blade is connected with an annular cutter head, arranged on the inner ring of the annular cutter head, arranged in a manner of extending in the radial direction of the annular cutter head, and provided with cutting edges along two axial ends of the annular cutter head. The fixing and guiding mechanism is provided with a sliding rod arranged in parallel beside the rolling brush and guided axially and a lead screw for outputting axial displacement, and the cutter rest is provided with holes matched with the sliding rod and the lead screw. The invention further provides a cleaning appliance. The device automatically cuts the entanglement without exposing the rolling brush, thereby improving the cutting environment and improving the cleaning effect and efficiency.

The invention relates to a system for improving an original-state soil sample and testing permeability. The system mainly used for comprehensively improving the field original-state soil sample and testing the permeability of the soil sample comprises a soil sample improving and permeability testing device, improving solution circulating equipment and the power equipment of the improving solutioncirculating equipment and is characterized in that the size of the designed soil sample improving and permeability testing device is generally matched with the size of a soil sample commonly used in alab, and the soil sample improving and permeability testing device is used as a container during soil sample improving, is also capable of measuring the permeability parameters of the soil sample, and comprises an annular cutter, a sleeve, sealing rings, permeable stones, a water inlet pipe, a draining pipe, an upper cover and a lower cover; soil property parameter change depends on the circulating flowing of an improving solution, and the improving solution circulating equipment comprises a water head tank and a water inlet tank; the power equipment comprises a pressure-variable normal-pressure air compressor and a vacuum pump and is mainly used for providing power for the stable circulating flowing of the solution. Compared with the prior art, the system is high in work efficiency, convenient to operate, reliable in effect, easy to master, capable of disassembled and assembled, and the like.

The present invention discloses soil sample sampling equipment based on a combined-type soil sample horizontal cutting apparatus, the soil sample sampling equipment includes two stand columns, an upper beam, an electric rotating seat, an electric lower press head, a soil sampling cutter located just below the electric lower press head, a lower press plate installed on the upper part of the soil sampling cutter and the combined-type soil sample horizontal cutting apparatus arranged on the outer side of the soil sampling cutter, the soil sampling cutter comprises an annular cutter and a cylindrical protection tube, a control box is arranged on the stand columns, the combined-type soil sample horizontal cutting apparatus comprises a lower position limitation ring, a plurality of side pushing panels and an upper pressure ring; the lower position limitation ring is a round ring with a cutting steel wire winding around the outer wall of one side, and the bottom of the lower position limitation ring is provided with a cutter edge, the outer side wall of the bottom of the lower position limitation ring is provided with two horizontal rings, two ends of the cutting steel wire respectively pass through the two horizontal rings, the side pushing panels are fixed on the upper pressure ring by a vertical connecting plate. The soil sample sampling equipment is simple in structure, reasonable in design, easy in use and operation, and good in use effect, and can simply and rapidly complete a sampling procedure, and the sampling effect is good.

The invention relates to a medical plastic garbage efficient processing device. The device comprises a base and a shell mounted on the base, wherein a filter plate is arranged inside the shell, the filter plate divides the interior of the shell into a crushing cavity and a sterilization cavity, a first rotating shaft and a second rotating shaft are arranged in the crushing cavity in parallel, annular cutters are mounted on the first rotating shaft and the second rotating shaft, a plurality of scrapers are arranged on the inner wall of the shell, the two ends of the first rotating shaft and thetwo ends of the second rotating shaft penetrate through the crushing cavity to be connected with a driving device through bearings, a heating sterilization device is arranged at the bottom of the sterilization cavity, an extruding device is installed above the heating sterilization device, the extruding device is in transmission connection with a driving mechanism arranged on the outer side of the shell, a feeding hopper is installed at the top of the crushing cavity, and a crushing circulating device is installed on one side above the filter plate and at the bottom of the crushing cavity. The device has the advantages that medical plastic garbage can be completely crushed, crushed medical garbage is sterilized, and finally is extruded and collected, the size of the medical plastic garbage is reduced, and the collection efficiency is improved.

The invention relates to an insulated wire stripper, comprising an inner cylinder body. The inner cylinder body is sleeved with a middle sleeve, an ejection sleeve, a clamping sleeve and a longitudinal cutting sleeve on the outer ring sequentially from left to right. The middle sleeve is also sleeved with an annular cutting sleeve on the outer ring. Four circumferentially distributed rectangular clamping block mounting grooves are formed in the central cylinder wall of the inner cylinder body. Four clamping blocks are respectively hinged in the four clamping block mounting grooves. The outer end of each clamping block abuts against a conical opening wall of the clamping sleeve. A spiral guiding groove is formed in the wall of the longitudinal cutting sleeve. An axial guiding groove is formed in the cylinder wall of the inner cylinder body. A longitudinal slider is mounted at the intersection position of the two guiding grooves. Two annular cutter mounting grooves are symmetrically arranged at the circumferential center of the central cylinder wall of the middle sleeve. Two annular cutters in central symmetry and in the shape of an arc sheet are respectively mounted in the two annular cutter mounting grooves. The outer side of each annular cutter abuts against the inner wall of an involute groove of the inner ring of the annular cutting sleeve.

The invention relates to medial equipment, particularly relates to a foreskin section ligation anastomat, and solves the problems of an existing foreskin circumcising anastomat that 360-degree annular continuous ligation blocking is adopted in an operation process to block lymphatic return and tissue seepage to cause serious edema after 1-3 weeks, so that the pains are severe, the healing is delayed and the working and studying are influenced. The device comprises an inner ring and an outer ring, wherein a groove is formed in the outer surface of the inner ring; an annular cutter opening matched with the groove is formed in the inner side of the outer ring; a foreskin ligation device is arranged between the cutter opening and the groove; the foreskin section ligation anastomat is characterized in that the cutter opening of the outer ring is in a subsection structure; drainage gaps are arranged on the cutter opening at an interval. According to the foreskin section ligation anastomat, ligation structures of the drainage gaps are arranged on the cutter opening at the interval so as to relieve, even avoid the edema and pains in a foreskin operation; the inner ring is provided with a drainage disinfection hole so as to be beneficial to draining secreta during a healing period after a foreskin circumcising operation, and cleaning and disinfecting a glans penis root and the foreskin; the inner ring is provided with an emergency ring detaching seam which is easy to snap off and can be used for emergency ring dismounting and ring detachment under an abnormal condition.

A male circumcision and suture device includes a glans receiver socket including a glans socket for inserting into an excess foreskin of a patient and a socket shaft extended from the glans socket, an operation housing having a shaft channel extended from a front edge, an annular cutter coaxially coupled at the front edge of the operation housing, a plurality of staples spacedly disposed at the front edge of the operation housing, and two operation handles pivotally coupled at the operation housing to actuate the annular cutter and the staples at the same time. When the operation handles to are concurrently and pivotally actuated, the annular cutter is pushed out of the front edge of the operation housing for removing the excess foreskin of the patient and at the same time, the staples are pushed for applying stitches at a cut area of the excess foreskin of the patient.

The invention discloses a double-ball-pair two-freedom-degree inclinable working table. The double-ball-pair mode is adopted for the working table, a part of a spherical face is directly used as a guide rail face, the structure is compact, and the system rigidity is high. Two rotation freedom degrees in two perpendicular directions are achieved. The double-ball-pair two-freedom-degree inclinable working table can be used in cooperation with an annular cutter, a taper milling cutter and the like for the five-axis numerical control machining of most complex curved surface parts. The rotation angles in the two perpendicular directions can be output through a rotation encoder. Through the combination with the power outage braking of an electromagnetic brake and the self-locking function of a worm and a worm wheel, a workpiece fixing tabletop of the working table can be accurately and reliably fixed at the required inclination angle.

The invention discloses a cutter head of a furrowing machine, which comprises an annular cutter holder and at least one furrowing cutter set, wherein the furrowing cutter set comprises a plurality of furrowing cutters which are hook-shaped and uniformly arranged around the annular tool holder in an alternating way in the axial direction of the annual cutter holder. According to the technical proposal, the shape of the furrowing cutters is like that of the paws of ants and pangolins, so that the furrowing cutters meet the minimum shallow-layer excavation resistance each time and are suitable to be used in a forest field or hard soil; and the alternating arrangement of the furrowing cutter set allows for layered and alternating cutting of the furrow earth and greatly reduces the power for single cutting, thereby improving the overall furrowing capacity of the furrowing cutter set and making the cutter head of the furrowing machine simple in structure and reliable in work.

The invention relates to an automatic rotatable filter stick machining device which comprises a machine frame (6), a drum (4) and a filter stick annular cutter (8). The machine frame (6) is provided with a conveying belt (10) for conveying filter sticks. The drum (4) is arranged on the machine frame (6) and can rotate around a horizontal rotating shaft (4-1) in the vertical plane, a plurality of grooves (9) which are parallel to one another are formed in the periphery of the drum or an annular groove belt (5) on the periphery of the drum, each groove is used for containing one filter stick, the bottom of each groove is provided with an air sucking opening, a pair of arc-shaped fixed stop pieces (3) are arranged on the circumference of the side face of the drum (4), an air sucking device communicated with an arc-shaped air flow section between the starting ends of the arc-shaped fixed stop pieces and the discharge point of the conveying belt is arranged in the drum (4), the filter stick annular cutter (8) is provided with a rotating shaft (8-1) parallel to the horizontal rotating shaft (4-1) of the drum (4) and can be driven by an annular cutting motor (8-2) to rotate, and the rotating shaft is provided with at least one annular blade (8-3).

The invention discloses a gun type circumcision and stitching instrument. The gun type circumcision and stitching instrument is characterized by comprising a gun body, a handle, a trigger and a circumcision and stitching mechanism arranged in the gun body. The trigger is arranged at the junction between the lower portion of the gun body and the inner side of the handle and used for controlling the action of the circumcision and stitching mechanism. In an operation, a doctor squeezes the trigger with one hand, and the trigger drives a movement assembly in the circumcision and stitching mechanism to control a nail pushing assembly to move, so that an annular cutter and a stitching nail can be pushed synchronously almost, the redundant prepuce is cut off, and the stitching nail is stitched to the prepuce to stitch the incision. Acting points of the structure are evenly scattered, and the axis of an annular blade will not shift. The gun type circumcision and stitching instrument has the advantages that the structural strength is high, labor is saved in the triggering process, limited cutting is accurate, and the intraoperative and postoperative bleeding probability is greatly lowered; a new circumcision and stitching scheme which is high in operation precision, safe and reliable is provided clinically.

The invention provides a composite broach, which has the advantages of high heat radiating efficiency, small resistance, long service life, and high cracking-resistant strength of a cutting blade and is easy for positioning during broaching. The composite broach comprises a broach head and is characterized in that a plurality of annular cutter blocks are configured on the broach head, and a cutting face or a chamfering face is formed on the broach head; a composite cutting face is convexly arranged at the inner side of the cutting face and provided with a composite cutting blade or a composite lateral cutting blade and a reinforcing platform; and a notched blade is arranged on the cutting blade or the lateral cutting blade, a groove extends to the cutting face or a rear cutting face or a lateral cutting face in an opening manner or is distributed on the cutting face or the rear cutting face or the lateral cutting face or the composite cutting face or a composite lateral cutting face side or a composite rear cutting face in a gradually enlarged shape.

The invention discloses a punching device for belt machining. The punching device comprises a base plate, a support, a workbench, a cross groove, a compressing device, a threaded rod, a movable block,a first installing plate, a telescopic rod, a second installing plate, a second spring, a first motor, a cam, an installing rod, an annular blade, a second motor, an adjusting rod, a sleeve, a connecting rod, a rack, a gear, an inner ratchet, a pawl and a fourth spring. The compressing device comprises a hinge pin, a first spring, a magnet and an iron plate. The punching device is provided with the workbench, the compressing device, a gas pipe and a dust collector, a belt is fixed, operation is simple, and convenience and quickness are achieved. The movable block, the threaded rod, the firstmotor, the cam, the annular cutter, the second motor, the adjusting rod, the sleeve, the connecting rod, the rack, the gear, an inner gear and the pawl are arranged and matched, continuous punching can be conducted at equal intervals, work efficiency is high, in addition, the hole space can be adjusted by adjusting the relative position of the sleeve and the adjusting rod, so that different needsare met, and applicability is high.

The invention discloses a forage grass automatic feeding and cutting integrated device. The forage grass automatic feeding and cutting integrated device is characterized in that the toothed parts of aleft semi-bevel gear and a right semi-bevel gear are mutually staggered, a first bevel gear is arranged on the upper portions of the left semi-bevel gear and the right semi-bevel gear, a driven shaftis fixedly connected to the center of the upper end of the first bevel gear, and a device body is rotatably connected to the driven shaft through a bearing; a second bevel gear is fixed on the upperportion of the driven shaft, the second bevel gear meshes with a third bevel gear, and the third bevel gear is fixedly connected with an auxiliary shaft. The forage grass automatic feeding and cuttingintegrated device the toothed parts of the semi-bevel gear mesh with the first bevel gear in a reciprocating manner to drive the bevel gears and the driven shaft to rotate forwardly and reversely ina reciprocating manner, a pinion and a bull gear drive a swing shaft and a swing rod to swing forwardly and backwardly in a reciprocating manner so as to drive an annular cuter to swing in a reciprocating manner, and a rotating drive shaft drives the annular cutter to perform rotary cutting through a synchronous belt.