70 results about "Sand-paper" patented technology

The invention discloses a flexible piezoresistive sensor and a preparation method and application thereof, the flexible piezoresistive sensor comprises an upper layer flexible conductive member, the upper layer flexible conductive member comprises an upper layer flexible substrate and an upper layer conductive layer, one surface of the upper layer flexible substrate is provided with a microstructure formed by sand paper reverse molding, and the upper layer conductive layer is embedded in the surface of the microstructure; the lower-layer flexible conductive member comprises a lower-layer flexible substrate, a lower-layer conductive layer and an elastic conductive layer; the lower-layer flexible substrate is provided with an arc-shaped stripe array microstructure; the elastic conductive layer includes a polymer matrix and a conductive filler dispersed therein. Through the double-gradient design of the gradient conductivity and the gradient structure, the core contradiction that a traditional flexible piezoresistive sensor is difficult to consider high sensitivity and wide linear range at the same time is successfully solved by utilizing the deep coupling and synergistic effect of the conductivity gradient and the structure gradient, and synchronous improvement of the sensitivity and the linear range is realized.

The invention relates to the technical field of polishing equipment, in particular to golf ball head curved surface precision polishing equipment which comprises a mounting support, a ball head polishing mechanism used for ball head curved surface machining is arranged on the mounting support, a dustproof adsorption mechanism is movably mounted on the mounting support, and the ball head polishing mechanism comprises fixed bases symmetrically arranged on the mounting support. And a first telescopic rod is arranged on the fixed base. The ball head body is clamped and fixed through the first telescopic rod, the grinding disc assembly is driven by the rotating sleeve to rotate by 360 degrees in the circumferential direction of the ball head, the grinding disc assembly can be flexibly attached to different curvature areas of the ball head body in combination with telescopic adjustment of the second telescopic rod, and grinding blind areas caused by structural limitation of traditional equipment are avoided; in addition, the annular abrasive paper can be automatically turned over to wrap the edge of the circular disc body when encountering the sunken position, so that the side face of the grinding disc can also participate in machining, and the grinding precision and consistency of complex curved surfaces such as grooves and seamed edges are further improved.

The utility model discloses a wedge type valve grinding tool, which belongs to the technical field of grinding tools and comprises a base, a lifting seat arranged on the base, an angle adjusting component arranged on the lifting seat, a first motor arranged at a moving end of the angle adjusting component, a turntable fixedly connected to an output shaft of the first motor, and a second motor fixedly connected to the turntable. A first gear is fixedly connected to an output shaft of the second motor, the rotating disc is located between the first motor and the first gear, a plurality of first rotating shafts are rotationally connected to the rotating disc, second gears and a bonding disc are fixedly connected to the first rotating shafts, the second gears are located between the bonding disc and the rotating disc, and the second gears are wound around the first gear and engaged with the first gear; a horizontal moving assembly is arranged on the top of the base, a clamping assembly is arranged at the moving end of the horizontal moving assembly, and the clamping assembly is located below the rotary disc. According to the utility model, the abrasive paper on the bonding disc can rotate along with revolution of the turntable, so that the sealing surface of the valve plate is ground in multiple directions, and the grinding effect is improved.

The invention relates to the technical field of grinding path optimization, and discloses an abrasive paper grinding path optimization system based on reinforcement learning. According to the system, a grinding task is decomposed through a task analysis module, and a state space is defined by fusing a current position, a historical track and real-time surface roughness through a state construction module. The strategy learning module utilizes a deep reinforcement learning network to carry out iterative training by exploring actions and collecting reward experience in simulation so as to learn an optimization strategy. And the trained network inferes local optimization paths for the sub-regions, and a global grinding path is formed after splicing and smoothing. According to the method, self-adaptive path planning is achieved through autonomous decision-making of reinforcement learning, closed-loop quality control is formed by means of real-time roughness feedback, and the intelligent level of grinding machining and the consistency of workpiece surface quality are improved.

The utility model relates to a steel door core plate numerical control slitting device which comprises a machine tool body, the top end of the machine tool body is connected with a movable support in a sliding mode, the front face of the movable support is provided with a numerical control slitting device body, and the front face of the numerical control slitting device body is connected with a laser cutting head. After a user cuts the steel door core plate bodies, the user separates the two steel door core plate bodies, then the user can start the lifting rod, the free end of the lifting rod drives the base to descend, then the user starts the motor, the output end of the motor drives the lead screw to rotate, the lead screw drives the sliding support to move, and the sliding support is driven to move. And the reset springs push the two mounting plates correspondingly, so that the inner sides of the two steel door core plate bodies are polished through the polishing abrasive paper on the outer sides of the two mounting plates correspondingly, chippings left after cutting on the inner sides of the steel door core plate bodies can be cleared away, and the cut positions can be polished to be smoother.

The utility model relates to the technical field of aluminum alloy profile machining, in particular to an aluminum alloy profile preformed hole machining device which comprises a rack, a moving assembly and a drilling motor and further comprises a polishing assembly. The grinding assembly comprises a mounting seat, a driving component, a lifting seat, a spring, an abutting plate, grinding abrasive paper and a winding component, the lifting seat is driven to descend through the driving component, then the abutting plate and the grinding abrasive paper are driven to descend, and after the abutting plate abuts against the surface of the aluminum profile, the abutting plate abutting against the surface of the aluminum profile shrinks and then retracts into the lifting seat; and the abutting plate located at the aluminum profile groove continues to move and drives the polishing abrasive paper to stretch into the groove so as to abut against the preformed hole in the groove, at the moment, the driving component drives the lifting base to move in a reciprocating mode, then the abutting plate and the polishing abrasive paper are driven to move in a reciprocating mode, and burrs at the aluminum profile preformed hole are polished through the polishing abrasive paper.

The utility model provides a breather valve seat grinding device which is used for grinding a breather valve seat. The breather valve comprises a shell, a valve seat and a valve disc. The valve seat and the valve disc are both arranged in the shell, the valve disc is arranged on the top end face of the valve seat, and the valve disc can be far away from the valve seat so that an air channel can be formed between the valve disc and the valve seat. The breather valve seat grinding device comprises a grinding head assembly, a transmission assembly and a driving source, the grinding head assembly is connected with the driving source through the transmission assembly, and the grinding head assembly is used for grinding the top end face of a valve seat; the grinding head assembly comprises a grinding disc, a pressing plate, a grinding sheet and a fastener, the grinding sheet is arranged between the grinding disc and the pressing plate, the grinding disc and the pressing plate are connected through the fastener, and the fastener is connected with the transmission assembly. The grinding sheet can be cut by adopting common and conventional abrasive paper, special customization is not needed, materials are convenient to obtain, and the use cost is low.

An adapter device for a power tool, in particular a multifunctional power tool that is able to be driven in an oscillating manner, has at least one machine interface for connecting to the power tool, in particular to a tool receptacle of the power tool, and at least one tool interface for connecting to a sanding tool, in particular to a sanding sheet. The machine interface have has a connecting plane which encloses an angle other than 0°, 90° and 180° with a connecting plane of the tool interface.

The utility model discloses a pneumatic floating polishing head, which relates to the field of automobile part manufacturing and comprises a fixed plate, a movable seat is slidably connected to one side of the fixed plate, guide columns are symmetrically and fixedly connected to one side, far away from the fixed plate, of the movable seat, sliding blocks B are slidably connected to the outer sides of the guide columns, and springs are sleeved on the outer sides of the guide columns. The sliding block B is elastically connected with the movable seat through a spring, a lifting seat is arranged on one side of the movable seat, the sliding block B is fixedly connected with the lifting seat, and a pneumatic polishing head is installed in the lifting seat. And the pressure is transmitted to the pneumatic polishing head through the lifting seat, so that upward buoyancy generated by rotation of the polishing head is reduced, the abrasive paper can be more uniformly attached to the surface of the workpiece, and the uniformity and smoothness of the polishing effect are ensured.

The application provides an electrolytic polishing method for a zirconium alloy and stainless steel welded joint EBSD sample, which comprises the following steps: (1) cutting a zirconium alloy and stainless steel welded joint sample to be detected; (2) mechanically polishing the cross section of the welded joint by using sandpaper; (3) preparing an electrolytic polishing solution; (4) placing the polished sample in step (2) into the electrolytic polishing solution in step (3) to perform electrolytic polishing treatment; (5) placing the sample after electrolytic polishing in step (4) into a container containing alcohol, ultrasonic cleaning the container containing the sample for 5 min, and then taking out the sample and blowing cold air by using a hair dryer until no water stains are left, so that the EBSD sample with a smooth and bright surface is obtained. By adjusting the proportion of the electrolytic polishing solution and optimizing the electrolytic polishing process, the polishing and stress layer removal of the cross section of the zirconium alloy and stainless steel welded joint sample are realized, and the EBSD sample detection calibration rate is high.

The present invention relates to a cutting, drilling and grinding combination machine tool for processing furniture panels, comprising a bed, an X-axis travel mechanism, a Y-axis travel mechanism, a Z-axis travel mechanism, and a processing head. The processing head comprises a cutting station, a drilling and grinding station, and a dual-output shaft motor. The drilling and grinding station comprises a main shaft, the lower end of which is detachably connected to a drill bit or a grinding disc. The top of the bed is provided with at least one set of ultrasonic megasonic bearing platforms for generating ultrasonic vibration and megasonic vibration and adapting the ultrasonic vibration and megasonic vibration. The present invention has multiple functions of cutting, drilling and grinding, and can process both metal panels and wooden panels, and can effectively improve processing efficiency and processing quality; the cutting operation is performed by cooperating with the cutting station and the ultrasonic megasonic bearing platform, which can significantly improve the chip removal capacity of the saw blade; the drilling operation is performed by cooperating with the drilling and grinding station and the ultrasonic megasonic bearing platform, which can increase the drilling rate and reduce the wear of the sandpaper.

This invention discloses a surface grinding device for motor stator cores, belonging to the field of motor stator core grinding technology. It includes a rotary drive component for driving the stator core to rotate, and a surface treatment structure on the rotary drive component. The surface treatment structure includes a grinding assembly and a power component for driving the grinding assembly to rotate. The grinding assembly includes several execution units. During the grinding process of the motor stator core sidewall surface, the insulating coolant filled in the base box mechanism of the execution unit cools the grinding area. This not only effectively extends the service life of the sandpaper assembly in the grinding device but also effectively suppresses irregular thermal expansion of the stator core during grinding, preventing excessive tool feed and ensuring the grinding accuracy of the motor stator core, thus improving the production yield of motor core products.

This invention discloses a rapid edge-grinding device for producing environmentally friendly bamboo cutting boards, belonging to the field of bamboo cutting board production technology. It includes a housing with open ends. The bottom of the housing has a mounting groove along its width. Grinding mechanisms are slidably mounted on both sides of the mounting groove. The mounting groove also includes a spacing adjustment mechanism that adjusts the distance between the two grinding mechanisms according to the thickness of the bamboo cutting board. This invention utilizes a grinding mechanism consisting of a U-shaped plate, a lower conveyor roller, a conveyor motor, an upper conveyor roller, a tension roller, and sandpaper symmetrically arranged on both sides of the mounting groove. Combined with a contact mechanism that adjusts the contact area between the sandpaper and the bamboo cutting board according to its thickness, and a spacing adjustment mechanism that adjusts the distance between the two grinding mechanisms according to the width of the bamboo cutting board, this allows the bamboo cutting board to be automatically edge-ground on its symmetrical sides after passing through the housing, eliminating the need for manual adjustment, thus improving practicality and grinding speed.

The utility model discloses an ambient air monitoring device. The environment air monitoring equipment comprises a vertical rod, a foundation is installed at the lower end of the vertical rod, and a display screen is installed on one side of the vertical rod; the vertical rod comprises a first rod body and a second rod body, and a connecting rod is arranged between the first rod body and the second rod body; the foundation comprises a bottom plate fixedly installed at the lower end of the vertical rod. The display screen comprises a display assembly and a frame used for fixing the display assembly. And the frame is rotationally mounted on the connecting rod. According to the environment air monitoring equipment, in strong wind weather, wind blows on the surface of the display screen to generate large thrust on the display screen, the display screen rotates under the action of wind power until the display screen is consistent with the wind direction, the stress on the two sides of the display screen is balanced and keeps consistent with the wind direction, and meanwhile, the display screen is not damaged. The possibility that abrasive paper doped in strong wind impacts on the display screen is smaller, and therefore damage to the display screen is reduced.

The invention discloses PVC coiled material floor surface polishing and grinding equipment which comprises a winding and unwinding mechanism, the winding and unwinding mechanism comprises an unwinding structure and a winding structure, the unwinding structure comprises an unwinding roller shaft, the winding structure comprises a winding tooth block, a driving motor is installed at one end of the winding roller shaft, and the winding tooth block is connected with the unwinding roller shaft. The winding roll shaft is mounted at the output end of the driving motor in a transmission manner; and the tensioning mechanism comprises tensioning rollers, the number of the tensioning rollers is two, and the two sets of tensioning rollers are meshed with each other through tensioning tooth blocks. Through the arranged grinding and polishing mechanism, the whole device is driven to operate by only using a power source of a driving motor in the whole process, multi-stage gear transmission is achieved through the single driving motor, an abrasive paper wheel is made to rotate in an accelerated mode and conduct reverse grinding, and efficient and energy-saving synchronous grinding and polishing are achieved; and the problems of high energy consumption, high cost and low efficiency caused by a double-power-source design are avoided.

The intelligent sensing reciprocating grinding and polishing system comprises grinding and polishing equipment and detection equipment, the grinding and polishing equipment comprises a first mounting plate, a first quick-change disc is arranged in the first mounting plate, and the bottom of the first mounting plate is fixedly connected with a force control device through screws; the bottom of the force control device is fixedly connected with a reciprocating polishing machine through screws, a square abrasive paper disc is arranged at the bottom end of the reciprocating polishing machine, the detection equipment comprises a second mounting plate, a second quick-change disc is arranged in the second mounting plate, and a visual detection head is arranged at the bottom of the second mounting plate; the intelligent sensing reciprocating grinding and polishing system for the robot tail end can detect the coating thickness of a part, calculate grinding and polishing allowance distribution, solve the problems that the allowance distribution is not uniform and a robot is difficult to grind and polish, conduct visual scanning on the part, reversely generate a workpiece CAD model, generate a robot grinding and polishing program according to a real object CAD, and improve the grinding and polishing efficiency. The problems that errors between workpiece objects and design CAD are large, and robot programs are difficult to generate are solved.

The invention relates to the technical field of adhesive synthesis, in particular to polyurethane composite adhesive for waterproof abrasive paper and a preparation method of the polyurethane composite adhesive. Wherein the main agent comprises macromolecular phthalic anhydride type polyester polyol, micromolecular phthalic anhydride type polyester polyol, a chain extender, diisocyanate, ethyl acetate (EAC) and dimethyl carbonate (DMC), and the phthalic anhydride type polyester polyol is selected to synthesize polyurethane, so that the heat resistance and the wear resistance of the product can be remarkably improved; meanwhile, phthalic anhydride type polyester polyols with different molecular weights are selected for compounding, so that the cost is properly reduced, and the brightness of a final product can be adjusted; according to the preparation method provided by the invention, the main agent is used for preparing the solvent-type OH-terminated polyurethane adhesive through a-NCO insufficient method, the polyurethane composite adhesive with high hardness, good wear resistance, good flexibility and high curing speed is formed through the cross-linking reaction of the main agent and the curing agent, and the preparation method is simple in technological process and easy to prepare.

The application provides an instrument shell processing deburring device and relates to the field of instrument shell processing. The instrument shell processing deburring device comprises an operation table, a polishing disc is installed on the top of the operation table, a through hole is formed in the middle of the polishing disc, a main shaft is rotatably connected to the middle of the operation table, the top end of the main shaft penetrates through the through hole in the middle of the polishing disc and is installed with a rotating disc, a pair of curve grooves which are symmetrical about the center point of the rotating disc are formed in the inside of the rotating disc, and the inner end notches of the curve grooves respectively extend towards the direction of the center point of the rotating disc. The instrument shell is pushed to move on the polishing sand paper through the curve grooves to realize polishing and deburring. Finally, the instrument shell is squeezed and pushed to the inner end notches in the form of "embracing" by the curve grooves to realize automatic discharging. Since the movement distance of each instrument shell is nearly consistent, the polishing and deburring degree can be uniformly good, and product control is facilitated.

The utility model provides a cutting device for abrasive paper processing, and relates to the technical field of cutting devices, the cutting device comprises an operation table, the outer surface wall of the operation table is fixedly connected with a fixing frame, and the inner surface wall of the fixing frame is provided with four first sliding grooves. According to the automatic abrasive paper feeding device, under the interaction of all the components of the device, the automatic abrasive paper feeding function is achieved, the problems of unstable feeding speed, large position deviation and the like caused by traditional manual conveying are effectively avoided, the cutting size precision is ensured, the product quality is remarkably improved, meanwhile, manual operation is reduced, and the production efficiency is improved. The problem that manual operation is low in efficiency is solved, the large-scale and high-efficiency production requirement is met, in addition, the two conveying belts can be promoted to rotate synchronously only through one power source, the transmission structure is greatly simplified, the equipment cost and energy consumption are reduced, the conveying requirements of abrasive paper with different thicknesses can be met by adjusting the positions of the two conveying belts, and the production efficiency is improved. And the application range of the equipment is widened.

The invention relates to the technical field of air cylinder maintenance, in particular to an aluminum thin-wall air cylinder barrel maintenance method which comprises the steps that a cylinder barrel is fixed, and a damaged area on the inner wall of the cylinder barrel is cleaned; the damaged area of the cylinder barrel is polished; multiple rounds of flame scanning are conducted on the grinding area, and the single-time scanning time is decreased progressively along with increase of the scanning frequency; cleaning and drying the heating area; the damaged area is coated with a filling agent and cured; and after first-time curing, grinding is carried out through raw abrasive paper till the piston is not blocked in push-pull, after second-time curing, grinding is carried out through fine abrasive paper till the piston is flush with an undamaged area, and after third-time curing, grinding is carried out through water wet polishing abrasive paper till the set roughness range is achieved. The limitation that the thin-wall cylinder barrel cannot be repaired after being damaged and deformed due to the thin cylinder wall is broken through, the maintenance working efficiency can be effectively improved, the maintenance time is shortened, and the maintenance cost is saved.

The utility model discloses a crankshaft center hole chamfer cutting device, and particularly relates to the crankshaft cutting technical field, the crankshaft center hole chamfer cutting device comprises a base, a mounting rack is arranged above the base, a screw rod is arranged on the top of the mounting rack, a wheel disc is arranged at one end of the screw rod, and a mounting plate is arranged at one end of the screw rod far away from the wheel disc; one side of each fixing rod is provided with a connecting shaft, each connecting shaft is connected with one end of a connecting plate, the other end of each connecting plate is connected with a clamping block through the connecting shaft, each clamping block is located in a limiting groove, and the limiting groove is formed in the limiting disc. According to the crankshaft center hole chamfering and cutting device, the crankshaft center hole subjected to chamfering and cutting is cleaned by installing the burr knife, and the burr knife is provided with abrasive paper and a brush, so that the crankshaft center hole can be better cleaned.

The utility model discloses a transmission drum of a belt conveyor. The transmission drum comprises a drum body, according to the transmission drum of the belt conveyor, through cooperative use of the processing mechanism, in the use process of the drum, a rotating handle is rotated to drive a threaded rod to rotate, and then the threaded rod is meshed with a frame plate to drive a connecting plate to move, so that a cleaning material is in contact with a rubber surface; in the process that the roller body rotates to drive the rubber face to rotate, the cleaning material brushes impurities attached to the outer wall of the rubber face, the cleanliness of the surface of the rubber face is improved, meanwhile, the cleaning material can be torn and pulled to drive the mother face hook-and-loop fastener and the son face hook-and-loop fastener on the back face of the cleaning material to be separated, the cleaning material is detached, and the cleaning efficiency is improved. When the roller is used, the roller can be replaced by fine abrasive paper, the rubber surface is slightly polished, the anti-skid performance of the roller is improved, the adhesive force between the roller body and the conveying belt is increased, the conveying effect on objects is indirectly improved, and then the practicability of the roller is improved to a certain degree.

In a sander, the compactness of the motor shaft in the extending direction is improved. [Solution] The sander comprises a pad, a motor, a main housing, a terminal assembly, and a support housing. The pad has a mounting surface for attaching sanding paper and is configured to move in an eccentric circular motion. The motor has a motor shaft extending perpendicular to the mounting surface and is configured to provide driving force to the pad. The main housing is located above the pad and houses the motor. The terminal assembly has a terminal block and terminals supported on the terminal block so as to be partially exposed to the outside and electrically connectable to a battery. The terminals extend upward from the terminal block. The support housing protrudes outward from the main housing in a direction perpendicular to the vertical direction and supports the terminal assembly.

The utility model relates to the field of optical device packaging, especially a small -size grinding system for optical device rework. Including two axis displacement platform, rotating motor system, optical device clamping fixture and switching power supply connected in the grinding platform base, one -way slide is fixed on two axis displacement platform, the optical device clamping fixture is fixed on one -way slide, the optical device clamping fixture clamps the optical device to be ground, the switching power supply connects rotating motor system, rotating motor system is connected on the grinding platform base, the rotating motor system is fixed grinding sand paper, the opposite of grinding sand paper is optical device clamping fixture. The utility model discloses small -size grinding system passes through strict design and assembly, guarantees the smoothness of grinding surface, and the operation is simple, and the compatibility is strong, satisfies the rework requirement of advanced high requirement optical device, adapts to the rework grinding of multiple size optical device, guarantees the quality of product while guaranteeing the smooth progress of rework.

The utility model relates to the field of bolt machining, and discloses a polishing device for automobile bolt machining, which comprises a workbench, a fixing plate is arranged at the top of the workbench, an electric push rod is fixedly connected to the side wall of the fixing plate, a positioning plate is fixedly connected to the output end of the electric push rod, and an air bag is fixedly connected to the side wall of the positioning plate. The side wall of the air bag is fixedly connected with a first hook-and-loop fastener, the side wall of the first hook-and-loop fastener is provided with a second hook-and-loop fastener, the side wall of the second hook-and-loop fastener is fixedly connected with abrasive paper, the side wall of the fixing plate is fixedly connected with a supporting plate, and the top of the supporting plate is fixedly connected with an air pump. According to the polishing device, the electric push rod, the air pump, the positioning plate and other structures are arranged, the bolt rotates to switch the polishing face in the polishing process, the polishing device can be suitable for polishing bolts with threads of different depths, and the situation that the fastening performance of the bolt in subsequent use is reduced due to the fact that the thread face is difficult to polish is avoided.

The utility model discloses a button cell steel sheet stamping mechanism, a collecting mechanism further comprises a supporting table, a plurality of mounting grooves are formed in the surface of the supporting table, the mounting grooves are arranged at equal intervals in the length direction of the supporting table, and supporting grooves are formed in the inner wall of the supporting table and located on the two sides of each mounting groove. A mounting cylinder is inserted into each mounting groove, the middle of the inner wall of each mounting cylinder is hollowed out, sponge abrasive paper is embedded and fixed to the position, located at the lower end of the hollowed-out position, of each mounting cylinder, the whole sponge abrasive paper is annular, and rotating shafts are rotationally connected to the two sides of the lower end of each mounting groove correspondingly; one side of the top end of each rotating shaft is fixedly connected with a supporting block, the interiors of the supporting grooves are movably connected with the rotating shafts and the supporting blocks, the top shaft pushes the formed steel sheet downwards into the mounting cylinder, and when the steel sheet moves downwards along the inner wall of the mounting cylinder, burrs on the side edge of the steel sheet are polished by sponge abrasive paper; and the machining steps of subsequent treatment of the steel sheet are reduced.

The utility model discloses a surface treatment device for a metal workpiece, which relates to the technical field of surface treatment of the metal workpiece and comprises an inner wall polishing machine, a supporting pipe is mounted on one side of the inner wall polishing machine, a rotating rod is rotatably arranged in the supporting pipe, a fixing block is arranged at one end, far away from the supporting pipe, of the rotating rod, and arc-shaped plates are arranged at the top and the bottom of the fixing block. The inner wall of the steel pipe can extrude an arc-shaped plate, the arc-shaped plate can extrude a spring through a connecting block, the spring can apply reverse force to the arc-shaped plate, the arc-shaped plate is tightly attached to the inner wall of the steel pipe all the time, grinding abrasive paper on the arc-shaped plate can make better contact with the inner wall of the steel pipe, and the grinding effect is improved; the rotating ring can extrude the rotating rod, the rotating rod can extrude the inserting block, so that the inserting block and the inserting groove are fixed, the quick connecting function of the fixing block and the rotating rod is achieved, the clamping effect can be enhanced through the inserting block and the inserting groove, and the inserting block and the inserting groove can be effectively prevented from sliding relative to each other.

The utility model relates to the technical field of polishing devices, in particular to an abrasive paper polishing device which comprises a polishing table, an abrasive paper polishing mechanism capable of automatically replacing abrasive paper is arranged on the polishing table, and a sand grain cleaning mechanism for keeping the surface of the abrasive paper clean is arranged in the abrasive paper polishing mechanism. The abrasive paper grinding mechanism comprises a grinding empty groove formed in the upper end of the grinding table, an abrasive paper storage cavity and a winding cavity are symmetrically formed in the two sides of the grinding empty groove, a first rotating shaft is movably installed in the abrasive paper storage cavity, a second rotating shaft is movably installed in the winding cavity, and an abrasive paper body is arranged outside the first rotating shaft. According to the abrasive paper polishing device, the abrasive paper polishing mechanism is arranged, the second rotating shaft and the limiting pressing plate are matched with each other, used old abrasive paper can be automatically replaced, manual operation of workers is not needed, the abrasive paper body can be pressed and fixed, and the abrasive paper body can be effectively prevented from wrinkling or shifting in the workpiece polishing process.

The utility model discloses an abrasive paper gluing device convenient to recycle redundant glue, which comprises a working table, a gluing mechanism is arranged at the top of the working table, a recycling mechanism is arranged at the top of the working table, and the recycling mechanism comprises a recycling assembly, a driving assembly and a driving assembly, the top end of the supporting rod is fixedly connected with a recycling plate, and the top of the recycling plate is fixedly connected with a glue uniformizing plate. According to the abrasive paper gluing device capable of conveniently recycling the redundant glue, through the ingenious design of the recycling mechanism, the redundant glue can be rapidly collected by the glue uniformizing plate and flows into the collecting box through the recycling plate and the recycling pipe, the purity of the recycled glue is effectively guaranteed through the filtering plate, the collecting box is convenient to mount and dismount through the arrangement of the folding pipe, and the whole recycling process is efficient, convenient and fast; the glue waste is greatly reduced, the production cost is reduced, and the working environment is kept clean.