151results about "Sawing tools dressing arrangements" patented technology

The invention relates to the field of bone ash storage rack machining, in particular to a cutting device for bone ash storage rack machining. The invention provides a bone ash storage rack processing and cutting device which comprises a workbench, the workbench is fixedly connected with a supporting frame, the supporting frame is provided with a first electric push rod, the telescopic end of the first electric push rod is fixedly connected with a pressing block, the pressing block vertically slides on the supporting frame, the workbench is rotationally connected with a lead screw, and the lead screw is fixedly connected with the supporting frame. A servo motor is installed on the workbench, an output shaft of the servo motor is fixedly connected with a lead screw through a coupler, a guide frame is fixedly connected to the workbench, and the guide frame and the lead screw are arranged on the workbench side by side. By means of automatic tool changing, online grinding, precise limiting and rotary linkage, the problems that saw blades are fast in abrasion, complex to replace and poor in precision are solved; shutdown is reduced through automatic tool changing, and accurate butt joint is guaranteed through balance weight; the service life of the saw blade is prolonged through online grinding, grinding precision is guaranteed through a limiting and rotating mechanism, production efficiency and notch quality are improved, and the high requirement for bone ash storage rack machining is met.

The utility model relates to the technical field of saw blade repairing, and discloses a bimetallic strip saw blade tooth blade repairing device which comprises a fixing frame, a transverse electric sliding rail is fixedly arranged at the top of the fixing frame, a transverse electric sliding block is arranged in the transverse electric sliding rail, and an air cylinder is fixedly arranged at the bottom of the transverse electric sliding block. An oil storage tank is fixedly mounted at the tail end of a piston rod of the air cylinder, a grinding rod is fixedly arranged at the bottom of the oil storage tank, an oil separation plate is fixedly arranged in the oil storage tank, an oil discharge pipe is fixedly arranged at the bottom of the oil separation plate, an electromagnetic valve is arranged on the pipe wall of the oil discharge pipe, and an oil discharge port is formed in the bottom of the oil storage tank and located on one side of the grinding rod; a longitudinal electric sliding rail is fixedly arranged at the bottom of the fixing frame. According to the double-metal band saw blade repairing device, the double-metal band saw blade can be automatically polished, the repairing efficiency is improved, meanwhile, cutting oil can be automatically added, the tooth edge of the saw blade is effectively prevented from being abraded, and the repairing quality is improved.

The utility model discloses a quick high-precision positioning and grinding alloy band saw blade device, which relates to the field of metal processing equipment and comprises a workbench, a second fixing block fixedly mounted at the top of the workbench, a grinding device fixedly mounted at the top in the second fixing block and matched with a saw blade body for use, and a positioning frame arranged on the outer side of the grinding device. The positioning frame is fixed to the inner top of the second fixing block. The problem that the saw blade body is firstly placed between the first fixing block and the second fixing block, the ideal grinding effect needs to be achieved through rough grinding and accurate grinding twice is solved, the grinding efficiency is improved, compared with a traditional positioning mode of mechanical tooth feeding, point-to-point pushing can only be conducted between two set positions, and the grinding efficiency is improved. According to the device, a brand new positioning mode is adopted, accurate positioning of the alloy band saw blade is achieved through a high-precision sensor and a control system, the grinding process is more stable and accurate, and the stability of the whole device for rapidly and accurately positioning and grinding the alloy band saw blade is improved.

The invention discloses a cutting device for highway guardrail plate machining, and relates to the technical field of guardrail plate machining, the cutting device comprises a cutting mechanism, and a polishing mechanism for polishing a cutting tool is arranged on one side of the cutting mechanism; mounting mechanisms for cooling and collecting the grinding mechanism are arranged on the two sides of the end, close to the grinding mechanism, of the cutting mechanism correspondingly, and an extrusion mechanism for extruding cut raw materials is arranged on the side, close to the grinding mechanism, of the cutting mechanism. According to the blade cutting device, tiny abrasion and burrs of the cutting edge are removed, cutting burr increase and notch deformation caused by blade passivation are avoided, the production quality is improved, then bending generated at the cut-off position is flattened through the extrusion mechanism, the situation that the quality inspection rate of products is reduced due to the cut-off bending is avoided, and the production quality is improved.

There is provided a guide dresser for milling a saw guide, the guide dresser comprising first and second cutter assemblies that are slidably mounted on a rail or slide system so as to be adjustable, in operation, between an open position and a closed position. There is also provided cutter heads and methods for milling a saw guide.

The utility model relates to a double-sided grinding machine. A conventional saw blade grinding machine needs to change the position of a grinding wheel or adjust the position of a saw blade for reverse tooth machining, only one saw blade can be machined at a time, machining efficiency is affected, and the automation degree is low. The saw blade positioning device comprises a machine body, a saw blade feeding mechanism is arranged on the machine body, a center saw blade positioning mechanism is further arranged on the side portion of the saw blade feeding mechanism, clamping stations are arranged on the two sides of the center saw blade positioning mechanism, and the center saw blade positioning mechanism can turn over in the vertical direction to convert the positions of the clamping stations. Grinding wheel mechanisms are arranged on the two sides of the center saw blade positioning mechanism respectively. The saw blade machining device can complete saw blade machining in a full-automatic and efficient mode, and the working efficiency is remarkably improved.

A microfluidic chip for causing the delivery of a payload to a cell comprises a plurality of constrictions configured to allow a cell suspension to flow through one or more of the plurality of constrictions from a first fluid flow region to a second fluid flow region within the microfluidic chip, wherein a cross-sectional width of each of the plurality of constrictions is less than a diameter of cells in the cell suspension, such that membranes of the cells are perturbed when passing through the constrictions such that a payload is able to pass through the perturbed cell membranes, and wherein a quotient of a cross-sectional area over a cross-sectional perimeter of each of the plurality of constrictions is greater than greater than or equal to 0.5 μm.

The invention discloses a production process of an alloy saw blade. According to the technical scheme, the production process is characterized by comprising the steps of base material cutting, heat treatment, grinding, welding, sand blasting and coping operation. The base material is cut, the raw material is cut through laser, and sawteeth with the tooth width of S1 and the tooth depth of L1 are formed; the alloy teeth and the base body are welded, the alloy teeth have the width size of S2 and the length size of L2, the tooth width of S2 and the effective tooth depth of L3 are formed after welding, S2 is larger than S1, and S2 and L3 are in direct proportion; according to the grinding operation, tooth width data of the alloy saw blade to be ground is determined through a grinding machine, corresponding tooth deep processing data is formed according to the tooth width data, grinding operation of side edges and cutting edges is carried out on two sawteeth at different positions, the proportional relation between the tooth depth and the tooth pitch can be determined through the production process, and the production efficiency is improved.

The utility model discloses a saw blade relief angle machining device which comprises a support and a grinding machine, a clamping assembly is installed on the support, the clamping assembly comprises a supporting rod and a clamping sleeve, a moving assembly is installed on the support and comprises a guide rail and a first motor, a rotating assembly is installed at the bottom of the support, and the rotating assembly is connected with the supporting rod. The rotating assembly comprises a supporting sleeve and a second motor, the supporting sleeve is provided with a positioning assembly, the positioning assembly comprises a worm and an electromagnet, and the supporting rod is provided with a lifting assembly. According to the saw blade relief angle machining device, the third motor can be in threaded fit with the threaded sleeve through the threaded rod until the threaded sleeve is extruded to the button, the third motor is turned off, and the positioning assembly is turned off; when the saw blade is clamped, the clamping sleeve is stopped from being pressed, the clamping firmness of the saw blade is guaranteed, the saw blade is prevented from loosening in the machining process, the safe machining work of the saw blade is guaranteed, the saw blade is prevented from being damaged due to too large clamping force, the safety of the saw blade is guaranteed, and the device is suitable for sharpening the rear angle of the saw blade.

This invention provides a saw blade inner corner rounding grinding device, comprising a work platform, a mounting frame, a grinding device, a tooth-shifting assembly, a movable clamping plate, and a fixed clamping plate. A feeding hydraulic rod is mounted on the mounting frame, with its movable end connected to a bearing block. A lifting block is slidably mounted on the bearing block, and a mounting rod is mounted on the lifting block. The tooth-shifting assembly is slidably mounted on the mounting frame. When the saw blade is installed, it is positioned with the tooth-shifting assembly. Then, the feeding hydraulic rod moves the bearing block to the processing position. The movable and fixed clamping plates clamp the saw blade. The grinding device drives the grinding wheel to descend and rotate, grinding the inner corner rounding of the saw blade. After grinding one tooth, the tooth-shifting assembly drives the saw blade to rotate at a set angle to grind the next tooth. All saw blade teeth can be ground at once, making the operation simple and highly efficient.

The invention relates to a product used in the agricultural sector for pruning, cutting, and shaking operations. This product allows multiple tasks to be performed with a single machine by using interchangeable saw and shaking heads attached to a fixed body.

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.

This invention relates to a three-stage grinding equipment for alloy circular saw blades, comprising a machine body, a side angle grinding unit, a front angle grinding unit, a rear angle grinding unit, a storage bin, a robotic arm, and a PLC control system. The robotic arm, controlled by the PLC control system, moves the alloy circular saw blade to be processed from the storage bin, performs side angle grinding, front angle grinding, and rear angle grinding on the side angle grinding unit, and then returns it to the storage bin for storage. The storage bin has an initial blade feeding position, a tooth selection and splitting mechanism, and an end blade receiving position. Each of the side angle grinding unit, front angle grinding unit, and rear angle grinding unit includes a transfer feeding position, a working position, and a transfer receiving position. This invention enables the simultaneous completion of side angle grinding, front angle grinding, and rear angle grinding of alloy circular saw blades on a single machine, thereby improving the grinding efficiency of alloy circular saw blades and reducing equipment operating costs.

Methods, apparatuses, and systems associated with a sample testing device are provided. For example, an example sample testing device may include a substrate layer defining a bottom surface of the sample testing device, as well as a waveguide disposed on the substrate layer and includes at least one reference channel and at least one sample channel.

The present invention discloses a multifunctional saw blade grinding and polishing device, which relates to the technical field of electric saw accessories. The present invention includes two housing fixing claws rotatably installed with each other. The bottoms of the housing fixing claws are fixedly installed with splicing plates. Two assembly holes are opened on the side walls of the two splicing plates. The two assembly holes at the same position are inserted with the same assembly bolt. One end of each assembly bolt is screwed with an assembly nut. A grinding assembly is arranged on the two housing fixing claws. By setting the grinding assembly, the two steering plates are rotated to make the grinding plate face the saw blade, and then the adjusting bolts on both sides are rotated to drive the two grinding plates to contact the two sides of the saw blade respectively. Then, the electric reciprocating saw is started to make the saw blade perform a reciprocating motion, and the grinding plates on both sides grind and polish the saw blade. Without manual operation, polishing can be achieved by means of the movement of the saw blade itself, reducing the operation difficulty and operation risk.

The utility model relates to the technical field of horizontal sawing machines, and discloses a saw blade height adjusting assembly of a horizontal sawing machine, which comprises two machining tables, an electric guide rail is fixedly connected to one sides, close to each other, of the two machining tables, and a driving assembly for driving subsequent parts to slide is fixedly connected to the inner wall of the front end of the electric guide rail. The front end of the top side of the driving assembly is fixedly connected with a connecting plate, the far ends of the top side of the connecting plate are fixedly connected with fixing plates, the close sides of the two fixing plates are fixedly connected with connecting plates, and the close sides of the two connecting plates are fixedly connected with connecting column frames. According to the device, the rotating plates can rotate around the pin in the concave frame after being pushed by the connecting column, so that the distance between the two rotating plates can be adjusted, processed materials are prevented from deviating, the device can adapt to collecting boxes of different sizes, and then the use range of the device is widened.

The full-automatic band saw gear grinding machine comprises a bottom plate, a grinding table is arranged at the top of the middle of the bottom plate, a penetrating groove is formed in the middle of the grinding table, a band saw blade penetrates out of the penetrating groove in a sliding mode, a base is fixed to the bottom of the grinding table, and the base is fixedly connected with the bottom plate; the grinding assembly comprises a top frame, two first inclined rails are symmetrically arranged at the bottom of the middle of the top frame, a grinding disc is installed between the two first inclined rails, and cross rods are arranged at the positions, located at the front end and the rear end of the grinding disc, of the bottom of the top frame; the positioning assembly comprises a transverse plate, the band saw blade on the grinding table is intermittently pushed and dragged through the traction assembly and a transverse rod of the grinding assembly, so that each position of the band saw blade can be placed on a grinding station, and the position of a grinding disc is adjusted through the positioning assembly according to the sawtooth slope and depth of the band saw blade; therefore, the grinding disc is matched with the band saw blade.

The invention relates to the technical field of circular saw blade machining, and discloses a circular saw blade machining rotary positioning mechanism and a working method thereof.The circular saw blade machining rotary positioning mechanism comprises a supporting frame and a rotary column rotationally connected to the front side of the supporting frame, and a clamping assembly is arranged at the front end of the rotary column; the circular saw blade clamping device comprises a supporting frame used for detachably fixing a circular saw blade to be machined, a limiting assembly is fixedly installed on the front side of the supporting frame, the front end of the limiting assembly is fixedly connected with an arc-shaped connecting block, the arc-shaped connecting block can rotate around the axis of the limiting assembly through a rotating assembly, and a clamping air cylinder is installed at the front end of the arc-shaped connecting block through a telescopic assembly. The circular saw blade machining rotating and positioning mechanism and the working method thereof have the advantages that the circular saw blade can be conveniently installed and fixed, the circular saw blade can be rotated, the rotating precision is high, and the grinding precision of the circular saw blade is improved.

The invention belongs to the technical field of saw blade sawtooth passivation treatment, and discloses saw blade sawtooth passivation treatment equipment which comprises a bearing plate, a sliding frame is arranged at the top of the bearing plate in a sliding mode, two rapid locking assemblies are arranged on the inner side of the upper end of the sliding frame, and each rapid locking assembly comprises a rotating frame. The middle of the rotating frame is rotationally provided with an adjusting disc, the inner side of the adjusting disc is provided with three sets of arc-shaped guide grooves, the inner side of the adjusting disc is provided with three sets of elastic grooves, and one side of the interior of the rotating frame is provided with a fixing block. According to the saw blade clamping device, the clamping structure can be adjusted in a rotating mode to clamp a saw blade, meanwhile, the saw blade is limited through the outwards-extending locking block and prevented from falling off, saw blades with different diameters can be flexibly locked through the rapid locking assembly, and meanwhile the clamping stability is effectively improved.

A saw chain grinding machine (2), for grinding a saw chain (4) provided with left-hand and right-hand cutting links (6), the machine (2) comprises a feeding arrangement (8) structured to feed the saw chain (4) in a forward direction along guiding members (28, 30) such that a longitudinal axis of said saw chain (4) is essentially horizontally oriented during grinding. The machine (2) comprises a first grinding station (10) provided with a first grinding disc (12) rotatable about a first spindle (14) and configured to grind one of said left-hand and right-hand cutting links (6), and a second grinding station (16) provided with a second grinding disc (18) rotatable about a second spindle (20) and configured to grind the other of said left-hand and right-hand cutting links (6), said grinding stations (10, 16) are arranged at a distance from each other along the saw chain (4), and that said spindles (14, 20), provided with said grinding discs (12, 18), are arranged above a saw chain (4) arranged at said guiding members (28, 30). The machine (2) comprises a control unit (22) that is configured to control said grinding stations (10, 16) to perform simultaneous grindings of left-hand and right-hand cutting links (6) of said saw chain (4) by applying a predefined grinding cycle.

This invention discloses a tooth grinding machine for wide-width band saw blade processing, including limiting plates and a workpiece processing mechanism. A saw blade body portion is inserted between two limiting plates, and each limiting plate has an inclined hole on its side. The inclined hole faces opposite directions to the tooth grooves on the saw blade body. The bottom end of the limiting plate extends into the material collection hopper. The advantages of this invention are: during the feeding process, the abrasive is also driven to rotate by the processing actuator, which can fully fill the gap formed between the annular surface in the middle of the processing actuator and the inner wall of the tooth groove, thus achieving the effect of abrasive grinding the inner wall of the tooth groove. The abrasive is fed in a state of simultaneous movement and rotation, resulting in a finer and smoother grinding surface; it fully utilizes the abrasive, reducing the number of times it needs to be added; and it can automatically adjust and position the tooth grooves on the saw blade body, allowing for rapid adjustment to the grinding state.

The utility model discloses saw blade tooth grinding equipment, and belongs to the technical field of saw blade tooth grinding equipment, the problem that the angle of a grinding wheel is inconvenient to adjust is solved, the saw blade tooth grinding equipment comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a limiting mechanism, and the outer surface of the limiting mechanism is fixedly connected with an adjusting mechanism. A first motor can be started, an output shaft of the first motor drives a worm to rotate, the worm rotates to drive a worm gear to rotate, the worm gear rotates to drive a connecting shaft to rotate, the connecting shaft rotates to drive a rotating frame to rotate around the outer surface of a fixing ring, and then the inclination angle of a sand grinding disc can be adjusted conveniently; an output shaft of a second motor drives a sanding disc to rotate, then a third electric telescopic rod is started in a matched mode, the output end of the third electric telescopic rod drives a connecting frame to slide up and down in a reciprocating mode, then the outer surface of the sanding disc can polish the outer surface of the saw blade, and polishing of different saw blades is facilitated to a certain degree.

The invention discloses a fire rescue cutting saw blade cutting edge grinding device, and mainly relates to the technical field of fire fighting equipment. Comprising a working platform, a supporting mechanism, a pushing mechanism and a grinding mechanism; the pushing mechanism comprises a driving shaft, a turntable, a push rod and a push plate; the polishing mechanism comprises a swing arm, a first polishing wheel and a second polishing wheel; the first linkage mechanism comprises a rotating frame, a cam and a supporting rod. The rotating disc rotates to drive the push rod and the push plate to push the saw blade to move at intervals, the moving distance is fixed, and it is guaranteed that the grinding mechanism can be aligned with the cutting edge when descending for grinding. And when the swing arm swings downwards, the first grinding wheel grinds the cutting edge, the two second grinding wheels grind the side face of the saw blade, cutting edge grinding and saw blade side face grinding are synchronously carried out and integrated on one device, and the cost is reduced. The interval fixed-distance forward movement of the saw blade and the lifting of the polishing mechanism can be realized through one driving mechanism, so that the cost is reduced, the beat is compact, the efficiency is high, the condition of misoperation can be effectively prevented, and the reliability is good.

A method is for determining a sharpness condition of a saw chain of a chain saw. The saw chain includes at least one cutting link having an upper cutting blade. An upper cutting blade image of the upper cutting blade of the cutting link is recorded using an imaging device. An evaluation of the upper cutting blade image is performed using an evaluation unit, which includes an artificial neural network. A sharp condition and a dull condition of the saw chain are defined in the evaluation unit. The saw chain is assigned on the basis of the upper cutting blade image using the artificial neural network to the sharp condition or the dull condition.

The invention relates to the technical field of circular saw blades, and provides a circular saw blade grinding device which comprises a circular saw blade, a first limiting piece is arranged on the side face of the circular saw blade, a transmission disc is arranged between the first limiting piece and a second limiting piece, and the transmission disc and a scale plate are arranged in parallel. Through bidirectional cooperation of the first limiting piece and the second limiting piece, synchronous rotation is achieved through the transmission disc, tight attachment can be achieved from the two sides of sawteeth, the rotating plate and the scale plate are fixed through cooperation of the locking rotary knob, a stable bidirectional clamping structure is formed, shaking or rotating of the circular saw blade in the grinding process is avoided, and the position stability can be kept without manual supporting; meanwhile, the scale plate can record limiting parameters of the circular saw blades of different models, the saw blades of the same model do not need to be repeatedly adjusted, the problem that the circular saw blades are prone to rotating is solved, manual intervention is reduced, and operation convenience and machining stability are greatly improved.

The utility model relates to the field of flying saws, and discloses a flying saw cutting opening flattening treatment device which comprises a flying saw body and a motor, a fixing frame is slidably mounted at the top of the flying saw body, a cutting mechanism is rotatably connected to the surface of the fixing frame, and a rotating gear is fixedly mounted at the output end of the motor. One end of the rotating gear is rotationally connected with a connecting frame, a rotating roller is fixedly installed at one end of the rotating gear, and the surface of the rotating roller is in transmission connection with a grinding belt. The motor is mounted at the top of the fixing frame, the rotating gear is mounted at the output end of the motor, the rotating roller is mounted at one end of the rotating gear through the connecting frame, and the grinding belt is in transmission connection with the surface of the rotating roller, so that the rotating roller is driven to rotate through the connecting gear after the motor is started; and the grinding belt on the surface of the rotating roller is used for grinding the cutting opening of the machined part, and the situation that the working process is increased due to later grinding is avoided.

A method for manufacturing a link (8) for an abrasive cutting chain comprises: providing a metal blank having an outer profile of the link (8) and a rivet hole (14); and providing a sealing material ring (15) by injection molding a sealing material around at least one rivet hole (14). The method further comprises providing a transfer channel (16) in the metal blank adjacent to the at least one rivet hole (14). The sealing material flows through the transfer channel (16) into at least one cavity portion of an injection mold assembly to form the at least one sealing material ring (15). A grinding chain link comprises at least one rivet hole (14). The transfer channel (16) is provided adjacent to the rivet hole (14).

The invention relates to the technical field of saw chain blade grinding equipment, and discloses a portable tool sharpener for saw chain blades, the portable tool sharpener comprises a shell, a fixing frame is fixedly connected to the side wall of the shell, and six lead screws are connected to the inner wall of the fixing frame in an engaged mode. A buckle mechanism and a fixing mechanism are arranged in the equipment, when a grinding wheel is clamped in a saw blade, the chain saw moves along a J path along with idling movement of the chain saw, the grinding wheel and the buckle mechanism drive a conveying belt and a rotating column to rotate clockwise, the outer wall of a first gear makes contact with a tooth groove of an annular plate, and the outer wall of a second gear makes contact with the tooth groove of the annular plate; and the tooth groove forces the first gear to rotate anticlockwise, the first gear drives the second inclined gear and the grinding wheel to rotate clockwise through the first inclined gear, at the moment, the grinding wheel is tightly attached to the inner wall of the saw blade and conducts rotary grinding in an H path, and grinding of the saw blade is completed under the condition that the saw blade is not disassembled.

The utility model discloses an automatic saw blade rolling and leveling device which comprises a supporting table, a driving rolling wheel and a driven rolling wheel, after the saw blade is fixed on the supporting table, the driving rolling wheel and the driving rolling wheel are located on the upper side and the lower side of the saw blade respectively, and a plurality of positioning blocks which are evenly distributed in the circumferential direction are annularly arranged in the middle of the top face of the supporting table. Each positioning block comprises a positioning part matched with the inner wall of a center through hole of the saw blade, an outer circle formed by the positioning parts of the positioning blocks in a surrounding mode can abut against the inner wall of the center through hole of the saw blade, a fixing sleeve is connected to the outer sides of the positioning blocks in a threaded mode, and a plurality of pressing blocks capable of pressing the saw blade on the supporting table downwards are arranged on the side wall of the fixing sleeve. A rubber pad is arranged on the contact face of the bottom of the pressing block and the saw blade. The saw blade rolling and leveling device has the advantages that positioning of the saw blade is enhanced, the saw blade is automatically rolled and leveled, deviation and deformation of a center hole of the saw blade caused by rolling deformation of the saw blade are avoided, and stability and machining quality are guaranteed when the saw blade is rolled and leveled.

The invention relates to the technical field of sand blasting machines, and discloses a sawing machine saw blade sand blasting machine which comprises a machine frame and a machine cover, the machine cover is arranged at the top of the machine frame, spray gun supports are arranged on the two sides of the top of the machine frame, a plurality of rotating shafts are rotationally arranged between the spray gun supports, and the multiple rotating shafts are arranged in a layered mode at equal intervals. The sand blasting machine comprises a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a sand blasting gun, a rotating plate is fixed to one end of the rotating shaft located at the top, a fixing shaft is arranged at one end of the rotating plate, and a ball shaft connecting base is arranged at one end of the fixing shaft. The swing rod swings to drive the rotating shaft on the top to swing up and down, and the rotating shaft located on the bottom layer also swings along with the swing rod through force transmission of the connecting plate and the connecting rod, so that the sand blasting gun on the rotating shaft is driven to swing up and down, and uniform sand blasting of the band saw blade is facilitated.