42results about How to "Good sharpening effect" patented technology

The invention discloses a dual-wheel mill knife combined device for an automatic cutting machine, which comprises a motor, a transmission mechanism, a dual-wheel mill knife mechanism and a cylinder. The transmission mechanism comprises a bearing shaft, a bearing sleeve, a bearing, a belt pulley and a small belt pulley, wherein the belt pulley and the small belt pulley are arranged on two end parts of the bearing shaft respectively, and are in belt type transmission connection with the motor; an upper holder and a lower holder are connected on the bearing sleeve; and the cylinder is connected with the upper holder. The dual-wheel mill knife mechanism comprises a base plate, a front grinding wheel, a rear grinding wheel and a small belt wheel, wherein the front grinding wheel, the small belt wheel, the small belt pulley and the rear grinding wheel are in belt transmission connection in sequence; and under driving of the small belt pulley, the front grinding wheel and the rear grinding wheel oppositely rotate. The dual-wheel mill knife combined device has the advantages of good knife milling effect, high working efficiency and long service life.

The invention discloses a binding machine with the automatic knife sharpening function. The binding machine with the automatic knife sharpening function comprises a workbench (1), a knife sharpening mechanism which is fixed to the workbench (1) to make a knife sharpener (15) transversely move and be positioned in the circumferential direction, a rack (7) fixed to the workbench (1), and a binding mechanism which is fixed to the rack (7) and makes a binding knife (10) rotate and move up and down. The knife sharpening mechanism comprises a motor fixing frame (12) fixed to the workbench (1), a second motor (19) installed on the motor fixing frame (12), a second gear (14) installed on the output shaft (13) of the second motor, a second toothed bar (18) meshed with the second gear (14), and a knife sharpening base (16) in sliding fit with the second toothed bar (18). The second toothed bar (18) is provided with a sliding groove (22). A sliding rail (23) used in cooperation with the sliding groove (22) for vertical sliding is arranged at the lower end of the knife sharpening base (16). A spring (17) is arranged between the knife sharpening base (16) and the second toothed bar (18). According to the binding machine with the automatic knife sharpening function, the situation that knife sharpening is carried out after a tool bit of a binding machine is detached is avoided, automatic knife sharpening is carried out as needed in work, and the working efficiency of the binding machine is improved.

The invention relates to a grinding device, in particular to the grinding device for a carving knife for root carving. The invention aims to solve the technical problems to provide the grinding device for the carving knife for root carving, which is fast in grinding speed, good in grinding effect and short in grinding time. In order to solve the technical problems, the invention provides the grinding device for the carving knife for root carving, which comprises a fixing rod, a base, first electric wheels, first steel wire ropes, oscillating rods, moving rods, L-shaped supports, first sliding blocks, support rods, a first sliding rail, electric drive push rods and the like. The oscillating rods are rotatably connected to the left side and the right side of the upper end of the fixing rods; a first spring is arranged between the oscillating rods; the first electric wheels are symmetrically arranged on the left side and the right side of the fixing rod and are arranged on the top part of the base; and the first steel wire ropes wind on the first electric wheels. The grinding device for the carving knife for root carving provided by the invention achieves the effects of fast grinding speed, good grinding effect and short grinding time; and by utilizing the device, the carving knife can be fast ground, and the grinding time spent by a user is reduced.

The invention discloses a pruning machine, which comprises a bracket, a swing rod and a connecting piece, wherein the bracket is provided with a driving motor, a reduction box, a fixed blade and a movable blade, wherein the driving motor is assembled and connected with the reduction box; the movable blade is hinged and assembled with the fixed blade; the edge surface of the movable blade close to the fixed blade is attached to the edge surface of the fixed blade close to the movable blade; the swing rod is fixedly connected with an output shaft of the reduction box; the front end of the connecting piece is hinged with the swing rod, and the rear end of the connecting piece is movably connected with the movable blade; and the edge surface of the fixed blade close to the movable blade is provided with at least one first edge groove.

The invention provides an automatic cutter sharpening device, belongs to the technical field of mechanical devices, and solves such technical problems as low efficiency and weak effect in a traditional automatic cutter sharpening device. The automatic cutter sharpening device comprises a mounting base I and a mounting base II oppositely fixedly arranged in a spaced manner; the mounting base I is provided with a driving shaft capable of rotating and a motor capable of driving the driving shaft to rotate; the mounting base II is provided with a driven shaft capable of rotating; a grinding wheel I is arranged at the end part of the driving shaft; a gear I is fixedly arranged on the driving shaft; a grinding wheel II is fixedly arranged at the end part of the driven shaft; a gear II is peripherally fixedly arranged on the driven shaft; a transmission shaft capable of rotating is arranged between the mounting base I and the mounting base II; a gear III and a gear IV are respectively fixedly arranged at two ends of the transmission shaft; the gear I is engaged with the gear III; and the gear II is engaged with the gear IV. The grinding wheel I and the grinding wheel II are synchronously driven to rotate by one motor, are consistent and unified in grinding of two sides of a cutter, and are balanced and uniform to further improve the effect.

The invention provides automatic knife sharpener of digital control fabric cutting machine. It comprises of sharpening parts, swing components and fixed components. The swing components comprises cylinder, deflection plate and deflection axis; the sharpening parts comprises two abrasive disks equipped parallel, abrasive disk axis and the sharpening fixed parts, the deflection plate and the axle sleeve are one unit and are installed with the deflection axis firmly, the abrasive disk axis is installed with the sharpening fixed parts firmly, the sharpening fixed parts are fixed on the deflection axis obliquely, the cylinder and the deflection axis are fixed on the fixed plate, two ends of said deflection axis are equipped with fender blocks, the fixed plate is fixed on the frame. The invention is simple in structure, low cost and sharpening finely, it solves the automatically sharpening caused by the cut knife of the cutting machine become inactivating after used for a long time, it reduces the frequency of changing knife tools, reduces the amount of labor workers and improves the production efficiency greatly.

The invention discloses an electric tool sharpener comprising a base. The electric tool sharpener is characterized in that a motor base is fixed on one side of the base; a motor is arranged on the motor base and is provided with a motor shaft; the motor shaft is connected with two transmission tool sharpening sets respectively; each transmission tool sharpening set comprises a transmission shaft, an eccentric shaft and a sharpening stone; the motor shaft is connected with the eccentric shafts through the transmission shafts respectively; the sharpening stones are arranged on the eccentric shafts; a support is arranged on one side, away from the motor, of the base; a sharpening-stone clamp is fixed at the top of the support; the transmission tool sharpening sets are symmetrically arranged on two sides of the sharpening-stone clamp which is adjusted through an adjusting screw; the motor base is a rubber cushion. The electric tool sharpener has the advantages of simple and elegant structure, convenience in use, high safety, stable working performance, capability of assisting in working efficiency improvement, good tool sharpening effect and low cost.

The invention provides a chopping block with a sharpener and belongs to the technical field of daily living articles. The chopping block solves the problems that sharpening is not convenient, consumes labor and time, has low safety, and the like. The chopping block with the sharpener comprises a block body, the edge of the block body is fixedly connected with the sharpener, the sharpener comprises a substrate of which at least one side is provided with a sharpening slot, and two sharpening blades which are fixed in the sharpening slot in a staggering way, and a wedge-shaped sharpening opening is formed between the sharpening blades. The chopping block with the sharpener has the advantages of strong integrity, beautiful appearance, simple operation, high sharpening efficiency, high sanitation degree and the like.

The invention relates to a rubber ultra-thin dialysis slitting machine, which mainly includes a workbench, an upper and lower top knife mechanism, a belt knife transmission mechanism, a feeding transmission mechanism, an upper and lower lifting transmission mechanism, a knife sharpening mechanism and a control mechanism all arranged on a frame. system, its technical feature is that the up and down lifting transmission mechanism includes an up and down lifting combination device, an up and down lifting motor, an up and down foot hanging device, and a screw rod; Two worm gear elevators, the lower lifting combination device includes two worm gear elevators connected and fixed on the frame through the connecting shaft, the worm gear elevators are respectively connected to the two ends of the screw rod, and the worm gear elevators are respectively connected with the upper and lower lifting motors Connection; the upper and lower foot-hanging devices respectively include a foot-hanging seat and a hanging foot. The foot-hanging seat is installed on the slider in the linear guide rail on the frame. state, the hanging feet are installed in the hanging foot seat, and flower rollers are respectively arranged on the hanging feet.

The invention discloses an automatic sharpening device for a spreading machine. The automatic sharpening device comprises a sharpening mechanism and a travelling mechanism, wherein the travelling mechanism comprises a guide rail and a guide wheel fixed on a guide wheel connecting plate, the guide wheel is matched and connected with the guide rail, collision blocks are arranged at two ends of the guide rail, and a sharpening assembly is connected with the guide wheel connecting plate of the travelling mechanism through a connector; and the sharpening mechanism comprises a mounting plate and a grinding wheel assembly, the grinding wheel assembly is arranged at one side of the mounting plate, a circular blade connected with a motor output shaft is arranged at the other side of the mounting plate, and the grinding wheel assembly can pass through a through hole in the mounting plate and is in contact with the circular blade in a certain inclination angle. The automatic sharpening device has the advantages of simple structure, convenience for operation and good sharpening effect.

The invention is applicable to the field of image processing, and provides a video image sharpening method and image processing equipment. The method comprises the following steps: carrying out line caching on input pixel point information to obtain pixel points in an N * N region; Multiplying each pixel point by a corresponding coefficient, and performing accumulating to obtain an accumulated value; Respectively calculating the sharpness of the central pixel point in a plurality of directions; taking Absolute values of the accumulated values to obtain different gain coefficients at differentboundaries, multiplying the gain coefficients by gain adjustment values to obtain newly-added benefit coefficients, multiplying the accumulated values by the newly-added benefit coefficients, and adding the multiplied values to original central pixel points to obtain first-level sharpening values; Comparing the sharpness of the central pixel point in a plurality of directions, and multiplying themaximum value by the second-level sharpening gain to serve as a second-level sharpening value; And adding a primary sharpening value and a secondary sharpening value to the original central pixel point to obtain a sharpening result of the central pixel point. The sharpening effect is good, the weak boundary can be sharpened strongly, the sharpening gain can be minimized for noise, and the noise ofthe image is prevented from being excessively amplified.

The invention discloses a knife sharpening mechanism comprising a knife sharpening mechanism body, a polishing mechanism and an electric power control system. A clamping device, a horizontal X-axis driving rail, a driving wheel, a horizontal Y-axis driving rail, a base, a driving wheel rail, a polishing mechanism, a pressure sensor, a motor mounting bracket, a lifting bracket, a grinding wheel motor, a coarse grinding wheel, a horizontal movement guide rail and a fine grinding wheel are arranged on the knife sharpening mechanism body; the electric control system is arranged inside the knife sharpening mechanism body; and an intelligent control chip, a single chip microcomputer, a main control circuit, a photosensitive module, a time setting module, a frequency control module, a driving circuit and a pressure sensing module are arranged on the electric power control system. The knife sharpening mechanism is reasonable in design, simple in structure, small in occupied space, and good in knife sharpening effect; and the pressure between a detection grinding wheel and a blade is detected through the pressure sensing module, wear of the blade is reduced, and a knife can be sharpened quickly in the condition of small knife piece wear.

The invention discloses a magnetic resonance image segmentation method and apparatus. The method comprises the steps of selecting an image meeting a preset condition from preprocessed magnetic resonance images; performing image segmentation on the image meeting the preset condition to obtain a target image in which a region of interest is segmented out; and according to a position relationship among the magnetic resonance images and the target image, segmenting other images in the magnetic resonance images. Therefore, the purpose of automatically performing the image segmentation on the magnetic resonance images is achieved; and moreover, the magnetic resonance images obtained by one-time imaging are subjected to the image segmentation according to the position relationship among the magnetic resonance images during the one-time imaging, so that the image segmentation efficiency is improved.

The invention provides an image sharpening method and device. The method comprises the following steps of: performing two-dimensional filtering on the original image; acquiring high-frequency partial data in the original image; storing the high-frequency partial data in an online cache; determining an interpolation factor for performing interpolation processing on the original image according to a zooming factor of the original image; performing the interpolation processing on the original image, so as to obtain an interpolation image; performing the interpolation processing on the obtained high-frequency partial data; acquiring interpolated high-frequency data; and superposing the interpolated high-frequency data into the interpolation image. The image sharpening device is a device for sharpening the image by employing the method. The production cost of the image sharpening device can be reduced, the image sharpening processing with any interpolation time is realized under the condition that the production cost of the image sharpening device is not increased, and the performance of the image sharpening device is improved.

The invention discloses a drilling and rivet-pressing binder with an automatic knife sharpening function. The drilling and rivet-pressing binder with the automatic knife sharpening function comprises a knife sharpening box which exists as an independent accessory, wherein a conductive knife sharpener is arranged on the top of the knife sharpening box; a positioning part which is used for positioning the knife sharpening box is arranged on a frame or a paper placing working table; during knife sharpening, the knife sharpening box is mounted on the positioning part in a positioned manner; the knife sharpener is electrically connected with a conductive rubber mat; and after a drilling tool downwards moves to a cutting edge and is in contact with the knife sharpener, the drilling tool, the knife sharpener and the conductive rubber mat communicate with one another electrically, and then the drilling tool reversely upwards moves to finish knife sharpening action. The drilling and rivet-pressing binder with the automatic knife sharpening function is simple in structure, low in cost and convenient to use, and can sharpen knives automatically.

The invention discloses a tool sharpener capable of automatic cleaning and good in cooling effect. The tool sharpener comprises a shell and is characterized in that the shell is internally provided with a motor which is provided with a spindle, the spindle penetrates the shell, the end of the spindle, arranged on the periphery of the shell, is connected with a sharpening blade, a sharpening blade support is arranged between the sharpening blade and the shell, a sharpening blade sleeve is arranged on the periphery of the sharpening blade, one side of the sharpening blade sleeve is arranged with a sharpening opening, a cleaning brush is arranged between the sharpening blade and the inner wall, away from the sharpening opening end, of the sharpening blade sleeve, and a cooling water changing pipe is arranged on the inner wall of the shell. The tool sharpener has the advantages of being cleaning automatically, good in cooling effect, concise and tasty in structure, convenient to use, high in security, stable in operation performance, higher in operating efficiency, good in sharpening effect and low in cost, and convenient using conditions are provided for users.

The invention discloses a knife grinder device for a cutting machine and the cutting machine, and solves the problem of inconvenience for dismounting of a grinding wheel in a traditional grinding wheel device. The knife grinder device for the cutting machine comprises a rotating shaft, a base fixed at one end of the rotating shaft, and a grinding wheel arranged on the base; the grinding wheel is peripherally fixed with the base; and the grinding wheel is axially fixed on the base through a magnet. In the device, as the grinding wheel is fixed on the base through the magnet, the grinding wheel is more convenient for dismounting.

The invention relates to a matching tool for grinding woodworking planers and in particular to a portable grinding device for a woodworking planer, which comprises a base, a feeding slider in sliding fit with the base and a cutter positioning and clamping mechanism fixed on the feeding slider, wherein the matching tool further comprises a grinding slider which is in sliding fit with the base and slides in a direction perpendicular to the sliding direction of the feeding slider, a fixing rack arranged on the grinding slider, a fixing seat which is arranged below the fixing rack and fixed on the grinding slider and an angular grinding machine which is arranged on the fixing rack and connected with the fixing seat; and a grinding wheel which is arranged on the grinding machine is engaged with the cutting edge of a cutter which is mounted on the cutter positioning and clamping mechanism. With the technical scheme, the portable grinding device for the woodworking planer has a low cost and a good grinding effect.

The invention provides an automatic cutter sharpening device, belongs to the technical field of mechanical devices, and solves such technical problems as low efficiency and weak effect in a traditional automatic cutter sharpening device. The automatic cutter sharpening device comprises a mounting base I and a mounting base II oppositely fixedly arranged in a spaced manner; the mounting base I is provided with a driving shaft capable of rotating and a motor capable of driving the driving shaft to rotate; the mounting base II is provided with a driven shaft capable of rotating; a grinding wheel I is arranged at the end part of the driving shaft; a gear I is fixedly arranged on the driving shaft; a grinding wheel II is fixedly arranged at the end part of the driven shaft; a gear II is peripherally fixedly arranged on the driven shaft; a transmission shaft capable of rotating is arranged between the mounting base I and the mounting base II; a gear III and a gear IV are respectively fixedly arranged at two ends of the transmission shaft; the gear I is engaged with the gear III; and the gear II is engaged with the gear IV. The grinding wheel I and the grinding wheel II are synchronously driven to rotate by one motor, are consistent and unified in grinding of two sides of a cutter, and are balanced and uniform to further improve the effect.

The invention relates to a repairable type milling cutter and an integrated repair device. The repairable type milling cutter is characterized in that a diamond film (4) is deposited on a repairable blade (3). The integrated repair device mainly comprises a diamond deposited film working chamber (5) and a blade sharpening working chamber (6), wherein a working table (5-3) on which the repairable blade (3) is placed for diamond deposition is arranged on a working table guide rail (6-8) in the diamond deposited film working chamber (5); the working table guide rail (6-8) is extended from the diamond deposited film working chamber (5) to the blade sharpening working chamber (6); a gate (7) through which the working table (5-3) passes is arranged between the diamond deposited film working chamber (5) and the blade sharpening working chamber (6); and a sharpening device (8) is arranged in the blade sharpening working chamber (6). The repairable type milling cutter has high sharpening efficiency, does not need manual intervention and contributes to improving the cutting quality.

The invention discloses a modified electric knife sharpener which comprises a base. The modified electric knife sharpener is characterized in that a shell is disposed on the base, a motor is disposed on the base in the shell, a motor shaft is disposed on the motor and connected with the a spindle through a transmission shaft, the end of the spindle is provided with a knife sharpening stone, a liftable knife holder is disposed at the top of the shell, a cooling chamber is arranged on the base on the lower side of the knife sharpening stone, no gap exists between the cooling chamber and the knife sharpening stone, a water inlet is formed at one end of the bottom of the cooling chamber, a water outlet is formed at the other end of the top of the cooling chamber, and 1 / 3-1 / 4 part of the diameter of the knife sharpening stone is disposed on the outer side of the shell. The modified electric knife sharpener has the advantages that the sharpener is simple, elegant, convenient to use, high in safety, stable in work performance, good in knife sharpening effect and low in cost, work efficiency is increased, and application convenience is brought to users.

The invention relates to a grinding device, in particular to the grinding device for a carving knife for root carving. The invention aims to solve the technical problems to provide the grinding device for the carving knife for root carving, which is fast in grinding speed, good in grinding effect and short in grinding time. In order to solve the technical problems, the invention provides the grinding device for the carving knife for root carving, which comprises a fixing rod, a base, first electric wheels, first steel wire ropes, oscillating rods, moving rods, L-shaped supports, first sliding blocks, support rods, a first sliding rail, electric drive push rods and the like. The oscillating rods are rotatably connected to the left side and the right side of the upper end of the fixing rods; a first spring is arranged between the oscillating rods; the first electric wheels are symmetrically arranged on the left side and the right side of the fixing rod and are arranged on the top part of the base; and the first steel wire ropes wind on the first electric wheels. The grinding device for the carving knife for root carving provided by the invention achieves the effects of fast grinding speed, good grinding effect and short grinding time; and by utilizing the device, the carving knife can be fast ground, and the grinding time spent by a user is reduced.

The invention discloses a knife grinder device for a cutting machine and the cutting machine, and solves the problem of inconvenience for dismounting of a grinding wheel in a traditional grinding wheel device. The knife grinder device for the cutting machine comprises a rotating shaft, a base fixed at one end of the rotating shaft, and a grinding wheel arranged on the base; the grinding wheel is peripherally fixed with the base; and the grinding wheel is axially fixed on the base through a magnet. In the device, as the grinding wheel is fixed on the base through the magnet, the grinding wheel is more convenient for dismounting.

The invention discloses a modified double-end motorized tool sharpener comprising a housing. The modified double-end motorized tool sharpener is characterized in that a motor is disposed inside the housing and provided with a motor shaft, the motor shaft is connected with a thick spindle through a thick transmission shaft, the thick spindle is provided with a thick sharpening stone, a sharpening holder is arranged between the thick sharpening stone and the thick spindle, the motor is connected with a thin spindle through a thin transmission shaft, a thin sharpening stone is arranged on the thin spindle, another sharpening holder is arranged between the thin sharpening stone and the thin spindle, a tool rest is disposed on the top of the housing and moves on the top of the housing along a tool rest rail, a tool rest fixation point is arranged on the tool rest, and the tool rest rail is circular. The modified double-end motorized tool sharpener has the advantages that the sharpener is simple in structure, convenient to use, high in safety, stable in operating performance, higher in operating efficiency, good in sharpening effect and low in cost; convenient service conditions are brought to users.

The invention discloses a binding machine with the automatic knife sharpening function. The binding machine with the automatic knife sharpening function comprises a workbench (1), a knife sharpening mechanism which is fixed to the workbench (1) to make a knife sharpener (15) transversely move and be positioned in the circumferential direction, a rack (7) fixed to the workbench (1), and a binding mechanism which is fixed to the rack (7) and makes a binding knife (10) rotate and move up and down. The knife sharpening mechanism comprises a motor fixing frame (12) fixed to the workbench (1), a second motor (19) installed on the motor fixing frame (12), a second gear (14) installed on the output shaft (13) of the second motor, a second toothed bar (18) meshed with the second gear (14), and a knife sharpening base (16) in sliding fit with the second toothed bar (18). The second toothed bar (18) is provided with a sliding groove (22). A sliding rail (23) used in cooperation with the sliding groove (22) for vertical sliding is arranged at the lower end of the knife sharpening base (16). A spring (17) is arranged between the knife sharpening base (16) and the second toothed bar (18). According to the binding machine with the automatic knife sharpening function, the situation that knife sharpening is carried out after a tool bit of a binding machine is detached is avoided, automatic knife sharpening is carried out as needed in work, and the working efficiency of the binding machine is improved.

The invention discloses an efficient cutter grinding device convenient to dismount and clean. The device mainly comprises a bottom plate, a U base, a reset base, a first friction frame and a second friction frame; the left part of the top end of the bottom plate is fixedly provided with a vertical plate, the middle of the top end of the bottom plate is fixedly provided with a fixed frame with a rightward opening, a gripping handle is fixedly mounted between the right side wall of the vertical plate and the left side wall of the fixed frame, the middle of the outer side of the gripping handle is sleeved with an anti-sliding sleeve, the right side of the top end of the bottom plate is fixedly provided with a mounting base, the middle of the mounting base is rotatably provided with an adaptorsleeve, the left side of the adaptor sleeve is fixedly provided with a movable frame, the bottom end of the movable frame is fixedly provided with a rubber strip, the bottom end side wall of the rubber strip is in tight contact with the top end side wall of the bottom plate, and a first rubber piece is fixedly arranged on the lower portion of the right side of the fixed frame. The device is reasonable in structural design, the grinding device is stable in structure, a double-face grinding knife is adopted, the knife grinding effect is good, the speed is high, safety is good, an easily-damagedpart of the grinding knife device can be dismounted, mounted and replaced, and the service life of the device is prolonged.

The invention discloses a novel cutter sharpener. The novel cutter sharpener comprises an inverted T-shaped cutter sharpening seat, a cutter sharpening component installed inside a groove in the backface of the cutter sharpening seat and a cover plate covering the cutter sharpening component and is of a bilateral symmetry structure with the upper face being provided with a V-shaped cutter sharpening slot by a middle opening extending downwards and the side face being in an inverted T shape, wherein the cutter sharpening component comprises a left cutter sharpening plate and a right cutter sharpening plate which are spliced, upper springs and lower springs with one ends being fixed to the left cutter sharpening plate and the right cutter sharpening plate, upper jacking needles and lower jacking needles with one ends fixing the other ends of the upper springs and the lower springs and being placed inside a left cutter sharpening plate groove and a right cutter sharpening plate groove, aleft cutter sharpening piece and a right cutter sharpening piece jacked by the other ends of the upper jacking needles and the lower jacking needles and squeezed and abutted inside an opening of a splicing side face of the left cutter sharpening plate and the right cutter sharpening plate and a front clamping plate and a rear clamping plate fixing the left cutter sharpening plate and the right cutter sharpening plate, and the left cutter sharpening piece and the right cutter sharpening piece are of a V-shaped structure to be squeezed and abutted in the same plane and expose the V-shaped cutter sharpening slot. The novel cutter sharpener has the beneficial effects that the novel cutter sharpener is easy to use and convenient and safe, time and labor are saved, the structure is unique, cutter sharpening piece cutter edge crimping in cutter sharpening can be avoided, a cutter is sharp, and the cutter sharpening effect is good.

The invention discloses a drilling and rivet-pressing binder with an automatic knife sharpening function. The drilling and rivet-pressing binder with the automatic knife sharpening function comprises a knife sharpening box which exists as an independent accessory, wherein a conductive knife sharpener is arranged on the top of the knife sharpening box; a positioning part which is used for positioning the knife sharpening box is arranged on a frame or a paper placing working table; during knife sharpening, the knife sharpening box is mounted on the positioning part in a positioned manner; the knife sharpener is electrically connected with a conductive rubber mat; and after a drilling tool downwards moves to a cutting edge and is in contact with the knife sharpener, the drilling tool, the knife sharpener and the conductive rubber mat communicate with one another electrically, and then the drilling tool reversely upwards moves to finish knife sharpening action. The drilling and rivet-pressing binder with the automatic knife sharpening function is simple in structure, low in cost and convenient to use, and can sharpen knives automatically.

The invention discloses a modified tool sharpener comprising a housing. The modified tool sharpener is characterized in that a motor is disposed inside the housing and provided with a motor shaft, the motor shaft is connected with a spindle through a transmission shaft, the spindle is provided with a sharpening plate fixed on a sharpening plate support, the sharpening plate support divides the sharpening plate into an independent sharpening chamber, a magnet is arranged on one inner side of the sharpening chamber, a partition is disposed between the magnet and the sharpening plate, the bottom of the sharpening chamber below the magnet is provided with a scrap iron storage chamber which is optionally demountable, and an openable door is arranged between the scrap iron storage chamber and the bottom of the sharpening chamber. The modified tool sharpener has the advantages that the sharpener is simple in structure, convenient to use, high in safety, stable in operating performance, higher in operating efficiency, good in sharpening effect, and low in cost; convenient service conditions are brought to users.