431 results about "Serration" patented technology

The invention relates to the technical field of milling cutters, in particular to a multi-tooth micro-blade milling cutter and a manufacturing method and application thereof. The multi-tooth micro-blade milling cutter comprises a cutter handle and a cutter head body, wherein the cutter head body is fixedly connected to one end of the cutter handle; the multiple cutter teeth are arranged on the outer side face of the cutter head body, and each cutter tooth extends to the tail end, close to the cutter handle, of the cutter head body from the top end, away from the cutter handle, of the cutter head body; each cutter tooth comprises a front cutter face, a rear cutter face and a cutting edge, the cutting edge is provided with a plurality of continuously-distributed micron-sized protruding micro-blades, the micro-blades form an arc-shaped sawtooth structure, the micro-blades extend to the front cutter faces and form micro grooves in the front cutter faces, the micro-blades extend to the front cutter faces and form micro grooves in the front cutter faces, and the micro-blades extend to the rear cutter faces and form micro grooves in the front cutter faces. The multi-tooth micro-blade milling cutter has the structure of the front angle of the front cutter face of the milling cutter tooth and the rear angle of the rear cutter face of the milling cutter tooth, the linear cutting blade of the traditional cutter tooth is dispersed into micro blades, the stress concentration of the cutter is reduced, a plurality of convex micro blades are in grinding motion on the machining face in the milling process, and the milling and grinding combined machining effect is formed. Unification of machining efficiency and machining precision is achieved.

The invention discloses double-face longitudinal submerged arc welding steel pipe manufacturing equipment, and relates to the technical field of longitudinal submerged arc welding, the double-face longitudinal submerged arc welding steel pipe manufacturing equipment comprises a base and a storage rack, the top of the base is provided with two second sliding rails and two walking mechanisms, the tops of the two walking mechanisms are fixedly connected through a portal frame, and the inner side of the portal frame is provided with a welding flux recycling structure; the welding flux recycling structure comprises a hollow storage box, the hollow storage box is fixedly connected with the portal frame through a plurality of mounting frames, two notches are formed in the inner side of the hollow storage box, a conveying belt is arranged in the hollow storage box, and a sawtooth belt is fixedly connected to the outer portion of the conveying belt. And a motor I is arranged outside one mounting frame. By means of the double-face longitudinal submerged arc welding steel pipe manufacturing equipment, the problem that welding flux or welding slag pieces cannot be completely recycled can be solved, and meanwhile the problem that two end areas of a steel pipe need secondary supplementary welding can be solved.

The invention discloses an assembly type adjustable pipeline supporting and hanging frame which comprises an upper U-shaped frame, the upper U-shaped frame comprises two vertical rods, the bottoms of the two vertical rods are connected together through a bottom cross arm, a middle cross arm is arranged in the middles of the two vertical rods, the two vertical rods are connected together through a connecting piece and an L-shaped corner connector, and the vertical rods are of a rectangular pipe structure. An opening groove is formed in the end face of the inner side of the rectangular pipe in the length direction of the rectangular pipe, inclined clamping teeth are arranged on the portion, at the opening groove, of the inner wall of the rectangular pipe, a connecting piece is clamped into the rectangular pipe and comprises a connecting block, inclined sawteeth and a bolt are arranged on the surface of one side of the connecting block, and the inclined clamping teeth and the inclined sawteeth are opposite in inclined direction and meshed together. The bolt extends out of the opening groove, penetrates through an L-shaped corner brace arranged on the outer wall of the vertical rod and is locked and fixed through a locking nut, and the horizontal section of the L-shaped corner brace is fixedly connected with the middle cross arm. The support hanger structure is convenient to adjust, and can be conveniently expanded to add other components.

A building facade system is provided with a unified anchor assembly having an anchor member. The anchor member has a blade portion, an anchor fist and an anchor fork. The blade portion has a head at the proximal end, a lateral surface having serrations and a slotted opening. The anchor fist has a channel and a flange, the channel receives the head of the blade portion to slide within the channel. The anchor fork has tines defining a slot with an opening therebetween and a serrated surface to engage the serrations of the blade portion. Upon installation onto a building, the anchor fork is seated on an upwardly extending flange of a structural member affixed to a building floor slab. The anchor fist is secured to a vertical mullion by shear connection made by fasteners coupling the flange of the anchor fist to a lateral surface of the mullion.

The utility model relates to a riveting piece, in particular to a thin plate pressing rivet lining which comprises a body, a first pressing rivet and a second pressing rivet, the body is arranged to be in an annular shape extending in the axial direction, and the body is provided with a first face and a second face which are oppositely arranged in the axial direction; the riveting part is connected to the first surface of the body, the outer diameter of the riveting part is smaller than that of the body, so that the riveting part and the body form a step-shaped structure, and the outer diameter of the riveting part is smaller than the inner diameter of the mounting hole; wherein a sawtooth part is arranged on the peripheral annular wall of the riveting part, a gap is formed between the sawtooth part and the body, and the gap is used for containing at least part of the deformed mounting plate. By means of the structure, the sawtooth part used for extruding the mounting plate can be arranged on the periphery of the riveting part, machining is easy, and the sunken condition of the riveted plate can be avoided.

The invention discloses a steel pipe piece vertical plate multi-angle cutting rapid positioning device which comprises a plurality of cutting workbenches, connecting plates are arranged in the cutting workbenches, a plurality of cutting sawtooth plates are connected to the connecting plates in a clamped mode, waste grooves are formed among the cutting sawtooth plates, and waste boxes are arranged at the bottoms of the cutting workbenches. An angle adjusting piece is arranged on the cutting workbench, the vertical plate is positioned on the cutting sawtooth plate through the angle adjusting piece, a cutting mechanical arm is arranged on the front side of the cutting workbench, and a laser cutting head is arranged on the cutting mechanical arm. The vertical plate is placed on the cutting sawtooth plate, meanwhile, the angle adjusting piece is used for positioning the vertical plate, when bevel angles of different angles need to be cut, only the connecting plate needs to be rotated, then the vertical plate is driven to rotate, then the laser cutting head is used for cutting the vertical plate at the corresponding angle, and the structure can be adjusted through the angle adjusting piece; and the vertical plate is positioned at different angles and is matched with cutting of the laser cutting head, so that different oblique angles are cut, and the applicability is improved.

The utility model relates to the technical field of garden pruning instruments, and particularly discloses a cylindrical pruning cutter which comprises a cutter holder and a blade, the cutter holder is arranged in a circular ring shape, a fixing part is arranged at one end of the cutter holder, a mounting part is arranged at the other end of the cutter holder, the blade is in a circular ring shape, one end of the blade is fixedly connected with the mounting part, and sawteeth are arranged at the other end of the blade in a surrounding mode. The utility model further discloses a trimming device with the trimming cutter. The cylindrical shape trimming cutter and the trimming device are simple in structure and high in trimming efficiency.

The invention relates to the technical field of cross-flow wind wheels, in particular to a cross-flow fan blade tail edge sawtooth structure and a cross-flow wind wheel applying the cross-flow fan blade tail edge sawtooth structure. The sawtooth structure comprises a fan blade body, and the peripheral contour of the fan blade body is defined by a fan blade root edge, a fan blade tail edge, a fan blade top edge and a fan blade front edge; the fan blade main body is provided with a pressure surface and a suction surface, the pressure surface and the suction surface are oppositely arranged, the pressure surface is concavely arranged towards the suction surface, so that the suction surface is convexly arranged, and the section shape of the pressure surface, the section shape of the suction surface, the fan blade root edge and the fan blade top edge are arranged in an arc shape; a plurality of notches are formed in the tail edge of the fan blade in an inwards-concave mode, and the adjacent notches are different. By means of the innovative structural design, noise is effectively reduced, and meanwhile it is guaranteed that the core aerodynamic performance of the fan blade is stable.

A transmission includes a shaft-hub connection designed as a serration and having an axial extent along a shaft axis, and an oil supply line to the serration in order to lubricate a relative movement in the serration between a shaft side and a hub side of the shaft-hub connection. The oil supply line is designed to open from radially inward directly into a cavity on the serration to enable supply of oil to the serration at an oil pressure that prevails in the cavity.

The utility model relates to fire fighting equipment, concretely relates to a fire axe, including axe handle and the axe body that sets up in the one end of axe handle, the hollow structure of axe handle, is set with a folding mechanism in the axe handle, the folding mechanism includes the moving pipe of the sleeve setting in the inside of axe handle, the first sawtooth blade of rotation folding is embedded on the moving pipe, the first sawtooth blade is through the rotation pin of hollow structure and is rotationally arranged in the moving pipe end, is set with the connecting hole of a plurality of hole structure on the axe body, and the second sawtooth blade is rotationally arranged on the axe body, the utility model not only has the function that the traditional fire axe breaks and dismantles, but also has the function that assists the rope drop of fireman.

A chopper blade for use in an agricultural harvester chopper to chop crop residue includes a blade body and a hard face. The blade body includes a cutting edge of the chopper blade. The hard face is applied to a surface of the blade body and is harder than the blade body. The hard face includes a sawtooth pattern along the cutting edge such that during use of the chopper blade, the cutting edge wears to the sawtooth pattern to match the sawtooth pattern, thereby forming corresponding sawteeth in the cutting edge, and the sawtooth pattern becomes part of the cutting edge of the chopper blade.

The double-edge sawtooth bone knife comprises a knife rod, the knife rod is connected with a blade, and the section, away from the knife rod, of the blade is provided with a cutting part; the cutting part comprises a first sawtooth part arranged at the end of the blade, a second sawtooth part and a third sawtooth part, the second sawtooth part and the third sawtooth part are arranged on the two sides of the blade respectively, the second sawtooth part and the third sawtooth part are connected to the two ends of the first sawtooth part respectively, and each of the second sawtooth part and the third sawtooth part comprises a plurality of convex back teeth. The cutting part has the advantages that the tooth-shaped structural design of the cutting part is optimized, vibration and noise during use are reduced, and the cutting quality can be improved.

This invention relates to the field of drilling equipment technology, specifically to a diamond-coated drill bit, comprising a drill bit connecting rod and a drill bit; water passage holes are provided inside the drill bit connecting rod and inside the drill bit, a first water outlet device is provided at the top of the water passage holes, and the first water outlet device is provided with a plurality of first water outlet holes; a second water outlet device is provided inside the water passage holes; the second water outlet device includes a screw, a plunger, and a turntable; the turntable is rotatably connected to the inner wall of the drill bit connecting rod in the horizontal direction, and the bottom of the turntable is provided with serrations that mesh with a gear, the gear being mounted on a rotating rod; the screw is threadedly connected to the turntable, and one end of the screw is connected to a mounting plate, the mounting plate being provided with a vertical plunger that can be inserted into the first water outlet hole; the plunger has a hollow structure, with a second water outlet hole on its upper side and its lower end communicating with the water passage hole. The first and second water outlet devices of this invention provide dual protection for the cooling of the drill bit, and also prevent the water outlet holes from becoming blocked.

The utility model discloses a diamond saw blade with multiple divided teeth, which relates to the technical field of cutting tools and comprises a plurality of saw blade components, each saw blade component comprises a base plate, an axis mounting hole is formed in the inner center of each base plate, diamond sawteeth are arranged on the periphery of each base plate at equal intervals, composite tooth grooves are formed in the periphery of each base plate at equal intervals, and the composite tooth grooves are formed in the periphery of each base plate at equal intervals. A first flange assembly is arranged on one side of each saw blade assembly, a second flange assembly is arranged on the other side of each saw blade assembly, every two adjacent saw blade assemblies are fixedly connected through the corresponding first flange assembly and the corresponding second flange assembly, and each first flange assembly comprises a first flange plate. The multiple sets of saw blade assemblies are in key connection with a transmission shaft of the cutting machine through flat key grooves, so that the multiple saw blade assemblies rotate synchronously, the outer threaded barrel and the inner threaded barrel are screwed and matched, the first flange plate and the second flange plate are tightly attached to the base plate, the base plate is not prone to deviation during cutting, the cut plane is smoother, and the quality of cut sheets is improved.

The diamond circular saw blade is characterized in that a saw blade main body is provided with a mounting hole and saw teeth, and tool bits are mounted on the saw teeth; the tool bit is flat, the size of the tool bit is reduced, and the utilization rate of the side face of the tool bit is increased; the main cutting faces of any two adjacent tool bits incline towards different sides, the tool bits can form tool noses facing one side, the tool noses on the different sides of the tool bits are beneficial to rapidly smashing materials, and the sharpness of the saw blade is improved. And the service life of the saw blade can be prolonged by matching the matrix powder and the active powder of the tool bit.

The utility model discloses a tooth-shaped tool bit, which belongs to the technical field of fish scale removing machines and comprises a hexagonal rod, a bending plate is arranged on the surface of the hexagonal rod, a plurality of welding holes are arranged inside the bending plate, and a sawtooth groove is arranged at the upper end of the bending plate. The bending plate is attached to the surface of the hexagonal rod, and then spot welding is performed in the welding hole in the bending plate, so that the influence of the outside on a welding spot when the tool bit is used is reduced, the firmness of the bending plate after welding is improved, the use strength of equipment is ensured, the service life of the equipment is prolonged, and the working cost of the equipment is reduced; the hexagonal rod can be disassembled and assembled through the splicing holes, the replacement convenience of the tool bit is guaranteed, manpower resources are saved, the fish scale scraping quality is guaranteed, two rows of sawtooth grooves are formed in the upper end of each bending plate, the fish scale scraping efficiency is improved, the use stability of equipment is guaranteed, and the situation that scraping is omitted or insufficient is prevented.

The low-noise saw blade comprises a saw blade body, a mounting cavity is formed in the portion, between a mounting hole and sawteeth, of the saw blade body, rubber blocks are filled in the mounting cavity, fixing plates used for covering the mounting cavity are arranged on the front side and the rear side of the saw blade body, the mounting cavity is in a fan shape, and the rubber blocks are arranged on the fixing plates. The saw blade body is provided with a mounting hole, the saw blade body is arranged in an array mode with the mounting hole as the circle center, first silencing holes communicating with the sawtooth gaps are formed in the saw blade body and correspond to the sawtooth gaps, and the saw blade further comprises second silencing holes which penetrate through the fixing plate and the saw blade body. The saw blade has the advantages that the installation cavity is formed in the saw blade body, the rubber block is filled in the installation cavity, rigid saw blade materials are replaced by soft rubber, vibration waves generated by vibration in the high-speed rotation process of the saw blade body can be effectively absorbed, and therefore noise of the saw blade body is effectively reduced.

A digital threaded plug gauge, including a barrel, a sleeve disposed around the barrel configured to move up and down with respect to the barrel, the sleeve including a serrated rod having serrations thereupon, a spring attached to the serrated rod to allow for elastic functionality of the serrated rod as the sleeve moves up and down with respect to the barrel, and a sprocket disposed within the sleeve to cause the serrations of the serrated rod to catch upon the sprocket to allow the digital threaded plug gauge to obtain a depth reading corresponding to a distance that the sleeve has traveled, a display unit to display a distance that the sleeve has traveled, and a caliper circuit board to sense a distance that the sleeve has traveled with respect to the barrel, thereby allowing the display unit to display the distance that the sleeve has traveled.

The utility model discloses an MAG combined multifunctional sawtooth alloy saw blade with a self-guiding cutting deviation prevention function, and relates to the technical field of saw blade cutting. The metal saw blade comprises a saw blade base body, and a plurality of metal saw teeth are arranged on the saw blade base body. In the cutting process of the saw blade, each group of metal saw teeth comprises seven cutting tips and ten cutting edges, so that the saw blade with the design of the combined saw teeth is provided with multiple tooth tip cutting edges compared with any existing saw tooth design so as to reduce the abrasion speed of saw tooth alloy in the cutting process, and the service life of the saw blade is prolonged; meanwhile, the alloy of each tooth is of a symmetrical tooth top design, so that the saw blade can be effectively prevented from deviating leftwards and rightwards during cutting, a centering and cutting deviation preventing function is achieved, the cutting force of the saw blade is effectively reduced, and saw blade deviation and rigidity reduction caused by temperature rise of sawteeth in the cutting process are reduced, especially for metal cutting; and meanwhile, the electric energy loss of the motor is reduced.

The invention relates to the technical field of additive manufacturing, and discloses a supporting structure for additive manufacturing of a large-size thin-wall workpiece, which comprises a hollow rib plate control frame, a variable density lattice support and a solid grid lattice distribution structure, the hollow rib plate shape control frame is arranged in the thin-wall part or in an opening area, the variable-density lattice support is arranged at a key part and an easy-to-deform area of the thin-wall part, and the solid grid lattice distribution structure is arranged in a stress concentration area or a sudden change surface area of the thin-wall part. A sawtooth cutting contact structure is arranged at the contact part of the cutter and the thin-wall part; according to the supporting structure for additive manufacturing of the large-size thin-wall part, mechanical linkage and thermal expansion self-adaption design of the movable assembly are utilized, transmission cooperation of a driving plate, a toothed plate and a gear is combined with the limiting effect of a bevel gear set and a limiting plate, an abutting plate is attached to the inner wall of a frame all the time, and gaps and stress concentration caused by thermal expansion are counteracted; and the supporting stability and the fitting degree are maintained.

The utility model discloses a medical saw blade convenient for chip removal, which comprises a saw blade body, one end of the saw blade body is fixedly connected with a plurality of saw teeth, a first chip removal groove is arranged at one end of the saw blade body and between any two adjacent saw teeth, a plurality of second chip removal grooves are arranged on one side of the saw blade body, and the first chip removal groove and the second chip removal groove are arranged on the other side of the saw blade body. And one side of each second chip removal groove is communicated with one side of the first chip removal groove in a penetrating manner. Through the structural design of the first chip grooves and the second chip grooves, the first chip grooves guide bone chips between every two adjacent sawteeth to be discharged, along with increase of the sawing depth, the first chip grooves enter a sawing face, the second chip grooves guide the bone chips in the first chip grooves to be discharged, the structure achieves discharging of the bone chips between the sawteeth, the sawing resistance is reduced, and the sawing efficiency is improved. And the operation time is shortened.

The utility model relates to a defluorination device for extraction. The defluorination device comprises a reaction kettle; the stirring assembly comprises a rotating seat, blades, first cutting grooves and second cutting grooves, the rotating seat is fixedly connected with the stirring shaft, the multiple blades are fixedly installed on the rotating seat, the first cutting grooves are formed in the wall faces of the blades, and the multiple second cutting grooves are formed in the edge positions of the blades. Solution near the bottom of the reaction kettle is stirred through the spiral blade, the solution forms vortex from top to bottom, and the solution is sheared by matching with the first cutting groove and the second cutting groove on the wall surface of the blade, so that the solution forms a plurality of branches after being pushed by the blade; meanwhile, a certain cavitation effect is formed when the solution makes contact with the sawtooth faces of the blades, mixing of the solution is promoted, the solution is extruded and mixed in cooperation with a plurality of cutting plates on the inner wall of the reaction kettle, the mixing effect and efficiency are greatly improved, and sufficient mixing of the fluorine removal agent and the solution is promoted.

The present application relates to saw blade manufacturing technical field, and discloses a band saw blade manufacturing method and band saw blade, and the manufacturing method comprises the following steps: step S1, precision edge cutting;Step S2, tooth profile forming;Step S3, heat treatment strengthening;Step S4, composite straightening;Step S5, high-frequency welding;Step S6, partition roller pressing strengthening;Step S7, adaptive finishing;Step S8, closed-loop quality control;Band saw blade, hard alloy cutter head brazing is formed in the sawtooth part of tooth holder, and the multiple parallel roller pressing bands formed by partition roller pressing strengthening;Through the cooperation of partition roller pressing strengthening and adaptive finishing, the number and width of roller pressing areas are dynamically configured according to the width of band saw blade, reasonable isolation zones are set between adjacent roller pressing bands, local strengthening is realized, and the bending strength and fatigue resistance of tooth root are enhanced;According to the pitch, the process route is selected, and the tooth is ground after roller pressing strengthening or the tooth is ground before roller pressing, and the safety distance of roller working area and tooth root is reasonably controlled.

The bar cutting device for wheel production comprises a feeding frame and a conveying frame which are arranged left and right, and a fixing frame and a cutting frame are arranged on the front side and the rear side of the feeding frame and the front side and the rear side of the conveying frame correspondingly; a cleaning mechanism is arranged on the feeding frame; a cutting mechanism and symmetrically arranged cutting cylinders are arranged on the cutting frame; pressing air cylinders are symmetrically arranged on the fixing frame; the cutting mechanism comprises a supporting frame body, a rotating main shaft is arranged on the outer side of the supporting frame body, a cutting saw blade is installed on the circumferential face of the rotating main shaft, and air cooling heat dissipation mechanisms are symmetrically arranged on the two sides of the cutting saw blade. According to the wheel bar cutting device, surface cleaning can be conducted on a wheel bar before cutting, then cutting machining is conducted, the calcining effect of the wheel bar in an annular heating furnace is effectively improved, in the cutting process, cooling air exhausted by an air cooling heat dissipation mechanism can cover the surface and sawteeth of a cutting saw blade, and the cutting efficiency is improved. And the service life of the cutting saw blade is effectively prolonged.

Sawteeth are provided with sharp head portions and round head portions, the sharp head portions are higher than the round head portions, and tool bits are welded to the sharp head portions. The damping grooves are formed between any two sawteeth; first grooves are formed in the upper end faces of the tool bits, and second grooves are formed in the front side faces of the tool bits. A plurality of damping grooves are formed in the saw blade body, so that the toughness of the saw blade body is improved, and vibration is reduced; the first groove and the second groove are formed in the upper end face and the front side face of the tool bit, the section of the first groove and the section of the second groove are both in an arc shape, the angle of the front angle of the tool bit is increased through the second groove, the cutting edge of the tool bit is sharper, the cutting edge of the tool bit is in an arc shape through the first groove, cutting is facilitated, and therefore the cutting performance of the saw blade is improved.

The invention provides a rotary cutting machine saw blade storage device which comprises a base set, a central fixing mechanism, two saw blade assemblies, two supporting assemblies and a grinding assembly. The base set comprises a base, an annular sliding block and a plurality of central clamping bases. According to the saw blade storage device of the rotary cutting machine, the base set, the central fixing mechanism, the two saw blade assemblies, the two supporting assemblies and the grinding assembly which are arranged are matched with one another. By means of the shrinkage joints which are originally arranged on the saw blades and used for preventing the saw blades from collapsing and deforming due to the fact that the surface temperature of the saw blades is too high during cutting, the steel wires matched with the joints are inserted, and then the multiple saw blades can be inclined or corrected at the same time by controlling the steel wires. In this way, after the stacked saw blades are obliquely arranged, the sawteeth of the saw blades are exposed at the same time, and workers can grind the sawteeth of the multiple saw blades at a time.

A saw blade piece cutting tooth grinding device comprises a mounting frame, a distance adjusting assembly, a linear driving assembly I, a tooth shifting assembly and a grinding assembly, the linear driving assembly I is arranged on one side of the mounting frame, the grinding assembly is arranged on the opposite side of the mounting frame, the distance adjusting assembly is arranged on the mounting frame, and the execution tail end of the distance adjusting assembly is matched with the power output end of the linear driving assembly I; wherein the distance adjusting assembly is used for adjusting the reciprocating distance of the power output end of the linear driving assembly I, the tooth stirring assembly is arranged on the mounting frame, and a stirring rod in the tooth stirring assembly is rotationally mounted on the mounting frame and makes contact with the tooth part of the saw blade. In the working process, the distance adjusting assembly and the linear driving assembly II are arranged, the distance of reciprocating motion of the sliding block II can be adjusted through the distance adjusting assembly, the distance between the tooth stirring assembly and the saw blade can be adjusted through the linear driving assembly II, and therefore the tooth stirring device can stir the saw blades with different sawtooth distances; by means of the device, automatic tooth shifting can be achieved when saw blades with different saw tooth intervals are ground.

The invention relates to the field of steel belt manufacturing, in particular to a steel belt manufacturing process which comprises the following steps: step 1, welding two ends of a steel belt body to enable the steel belt to be annular; 2, the steel belt body is arranged on a manufacturing device in a sleeving mode, and the steel belt body is made to operate in an oval track through the manufacturing device; thirdly, the two faces of the steel belt body are polished through a manufacturing device, and meanwhile the two side edges of the steel belt body are subjected to deburring treatment; fourthly, cleaning liquid is sprayed to the polishing position while the steel belt body is polished, and chippings are removed; fifthly, the cleaning fluid on the two faces of the steel belt body is blown dry through hot air; sixthly, a plurality of auxiliary wire grooves are machined in the outer surface of the steel belt body through a manufacturing device; seventhly, saw teeth are punched on the single side edge of the steel belt; 8, the manufactured steel belt finished product is taken down; a plurality of auxiliary wire grooves can be machined in the surface of the steel belt, and workers can conveniently cut and weld the damaged steel belt.

The utility model relates to the technical field of paper punching, and discloses a paperweight mechanism capable of punching paper, which comprises a bottom plate, the left side and the right side of the top of the bottom plate are fixedly connected with flanging punches, the tops of the two flanging punches are fixedly connected with a plurality of sawteeth at equal intervals, the left end and the right end of the rear side of the bottom plate are fixedly connected with connecting plates at equal intervals, and the connecting plates are fixedly connected with the left end and the right end of the rear side of the bottom plate. And the middle upper portions of the multiple connecting plates are rotationally connected with connecting pieces correspondingly, the front sides of the two connecting pieces are fixedly connected with pressing plates correspondingly, pressing holes are formed in the left side and the right side of the bottom of each pressing plate correspondingly, and a quick clamp stand column locking mechanism is installed on the rear side of the bottom of the bottom plate and used for locking a quick clamp stand column. According to the file punching device, after a file is fixed, the pressing plate is pressed down, and the file is punched through cooperation of the pressing hole, the flanging punch and the sawteeth on the top of the flanging punch, so that the effect that the file can be punched without a punching machine when a user puts the file into the quick clamp book is achieved.