A sander with a surface quality detection function

Abstract

The present invention discloses a sander with a surface quality detection function, which relates to the technical field of grinding and polishing, and includes: a bracket, on the surface of which a grinding component is arranged, an outer shell is arranged on the surface of the bracket, and a sanding mechanism is arranged inside the outer shell, and the sanding mechanism is used for sanding a board; a detection mechanism is also arranged inside the outer shell, and the detection mechanism is used for detecting the surface quality of the board; a conveyor belt drives the board to move towards the side close to the grinding component, and the board enters the outer shell through a feed port. Subsequently, the staff controls the sanding mechanism to start through a controller, and the sanding mechanism immediately grinds the surface of the board. The board after grinding moves under the action of the conveyor belt. When the board moves to the bottom of the detection mechanism, the controller immediately controls the detection mechanism to detect the quality of the board surface, ensuring the quality of the board sanded by the sanding mechanism and guaranteeing the qualified rate of the board after sanding.

Description

Technical Field

[0001] The present invention relates to the technical field of grinding and polishing, and particularly to a sander with a surface quality detection function. Background Art

[0002] A sander, also known as a grinding machine, is one of the commonly used equipment in modern sheet processing industry. It uses abrasive belts, sandpapers or grinding wheels and other abrasives to replace tools for processing workpieces. The purpose is to remove the surface materials, burrs, milling and other processing marks of the workpieces, so that the workpieces meet certain thickness dimensions or surface quality requirements; it is to use cutting tools equipped with abrasives to sand the workpieces to improve their thickness accuracy, flatness and roughness quality, and provide a good base surface for the surface decoration, painting of wooden parts or the secondary processing of sheets;

[0003] At present, the existing sanders cannot automatically detect the surface of the processed sheets. In order to ensure the quality of the sheets after sanding and grinding by the sander, it is usually the staff who manually detect the surface of the sheets. In this way, it is time-consuming and laborious, the detection efficiency is low, and the data detected after a long time of manual detection is not accurate enough. Summary of the Invention

[0004] The purpose of the present invention is to provide a sander with a surface quality detection function to solve the problems raised in the above background art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A sander with a surface quality detection function, comprising: a bracket, on the surface of which a conveyor belt is arranged, the conveyor rollers in the conveyor belt are connected to the drive shaft in the motor, and the motor is arranged inside the bracket; a grinding assembly is arranged on the surface of the bracket, and the grinding assembly is used for processing the surface of the sheet;

[0007] The grinding assembly includes: a housing arranged on the surface of the bracket, and a material opening is provided on the side wall of the housing; a sanding mechanism is arranged inside the housing, and the sanding mechanism is used for sanding the sheet; a detection mechanism is also arranged inside the housing, and the detection mechanism is used for detecting the surface quality of the sheet;

[0008] The staff places the board on the surface of the conveyor belt. Subsequently, the motor inside the bracket is started by controlling it through the controller. The drive shaft of the motor drives the conveyor roller to rotate, and the conveyor roller drives the conveyor belt to rotate. During the rotation of the conveyor belt, the board is driven to move towards the side close to the grinding assembly. The board enters the housing through the material inlet. Subsequently, the staff starts the sanding mechanism by controlling it through the controller, and the sanding mechanism immediately grinds the surface of the board. The board after grinding is moved under the action of the conveyor belt, and the conveyor belt drives the board to move towards the side close to the detection mechanism. When the board moves to the bottom of the detection mechanism, the controller immediately controls the detection mechanism to conduct quality inspection on the surface of the board, ensuring the quality of sanding the board by the sanding mechanism and guaranteeing the qualified rate of the board after sanding.

[0009] Preferably, the sanding mechanism includes: a support frame, the support frame is arranged on the surface of the bracket, a support rod is arranged between the two support frames, a sliding sleeve is installed on the support rod, a gear is installed on one end surface of the sliding sleeve, the gear meshes with and drives the motor gear, the motor gear is connected to the drive shaft in the motor, and the motor is arranged on the outer wall of the housing; a sanding wheel is installed on the sliding sleeve.

[0010] Preferably, a number of sliding grooves are circumferentially formed on the surface of the sliding sleeve, sliding blocks are arranged in the sliding grooves, and the sliding blocks are slidably connected to the support rod; on the side of the sliding block away from the support rod, a connecting rod is arranged, and the connecting rod is hinged to the sliding block; the connecting rod passes through the sliding sleeve and is connected to the sanding wheel; the connecting rod is slidably connected to the sliding sleeve.

[0011] Preferably, the support rod is in a cam shape, and the straight line connecting the near-repair end and the far-repair end of the support rod forms an angle of 135° with the surface of the bracket; the radian of the near-repair end of the support rod is 210 degrees; the radian of the far-repair end of the support rod is 150 degrees.

[0012] Preferably, the sanding wheel is composed of a number of arc-shaped blocks, and the arc-shaped blocks are connected to the connecting rod; on the side of the arc-shaped block away from the connecting rod, a sanding plate is arranged; the sanding plate is connected to the arc-shaped block through a buckle; an air duct is formed inside the arc-shaped block, an air suction port is formed on the side wall of the surface of the arc-shaped block, and the air suction port is communicated with the air duct; a spiral groove is arranged on the inner wall of the air duct; a wind box is installed on the side of the support rod away from the gear, the wind box is rotatably connected to the sanding wheel; the wind box is communicated with the air duct; a suction fan is arranged in the wind box, a dust collection box is arranged on the side of the wind box away from the sanding wheel, and the wind box is communicated with the dust collection box;

[0013] The board moves under the action of the conveyor belt, moving towards the side close to the sanding wheel. The staff controls the motor on the housing to start through the controller. The motor drive shaft drives the motor gear to rotate. The motor gear drives the gear on the end face of the sliding sleeve to engage and drive. During the rotation of the gear, the sliding sleeve is driven to rotate. The sliding sleeve drives the sliding block to rotate. During the rotation of the sliding block, the sliding block slides along the wall of the support rod. The sliding block drives the connecting rod to rotate. The connecting rod drives the arc block to rotate. The arc block drives the sanding plate to rotate. During the rotation of the sanding plate, the sanding plate sands the surface of the board, grinding the surface of the board flat.

[0014] During the process of the sliding block sliding along the wall of the support rod, when the sliding block slides to the proximal position of the support rod, the bottom of the arc block contacts the surface of the sliding sleeve, and the side walls of adjacent arc blocks contact each other. The arc blocks located at the proximal position of the support rod form a sanding mechanism. When the arc block contacts the board during rotation, the sanding plate immediately sands the surface of the board.

[0015] When the sanding plate after sanding rotates under the action of the arc block; the sliding block drives the arc block to move towards the distal position of the support rod. During the sliding of the sliding block, affected by the cam shape of the support rod, the sliding block moves towards the side close to the sliding sleeve. The sliding block slides along the side wall of the sliding groove. During the sliding of the sliding block, it drives the connecting rod to move away from the support rod. During the movement of the connecting rod, it pushes the arc block to move. The arc block moves away from the support rod. The arc block drives the sanding plate to move; At this time, the bottom surface of the arc block is separated from the surface of the sliding sleeve, and the side walls of adjacent arc blocks are separated from each other; a channel is formed between adjacent arc blocks.

[0016] Before sanding, the staff controls the exhaust fan in the air box to start through the controller. The exhaust fan continuously extracts the air in the air duct. During the sanding process of the sanding plate, the sanding plate grinds the surface of the board to produce debris. The debris is thrown out along the tangent direction under the rotation of the sanding plate. Since the sanding plate moves towards the distal end of the support rod; a channel appears between adjacent arc blocks; At this time, the air suction port is connected to the outside air; The air suction port sucks in the debris generated by sanding. The debris enters the air duct through the air suction port. Since spiral grooves are provided on the inner wall of the air duct; the debris entering the air duct mixes with the air and moves spirally along the spiral grooves under the action of the exhaust fan, generating a cyclone. The cyclone speeds up the flow rate of the air flow, sucking in most of the debris. The debris mixes with the air and flows into the air box, and is collected through the air box into the dust collection box; The air flows in the channel between adjacent arc blocks under the action of the exhaust fan, taking away the heat generated by the sanding of the sanding plate, realizing the cooling of the surface of the sanding plate. The separation between the side walls of adjacent arc blocks prevents the heat generated by sanding from being transferred through the arc blocks; further cooling the sanding mechanism.

[0017] If the sanding board is damaged, the staff can remove the damaged sanding board through the buckle, and then connect a brand-new sanding board to the arc-shaped block; this avoids damage to the sanding wheel, resulting in the need to replace the entire sanding wheel, saving the maintenance cost of the equipment.

[0018] Preferably, the detection mechanism includes: a spraying chamber, which is arranged inside the housing. A brushing roller is arranged inside the spraying chamber, and the brushing roller is rotatably connected to the side wall of the spraying chamber; one end of the brushing roller passes through the side wall of the spraying chamber and is connected to a motor; brushing wheels are installed on the roller wall of the brushing roller, and a material box is arranged on the side of the brushing wheel away from the conveyor belt. The material box is filled with paint; a solenoid valve is arranged inside the material box.

[0019] The staff pours the paint into the material box, and then starts the motor on the side wall of the spraying chamber through the controller. The drive shaft of the motor drives the brushing roller to rotate. During the rotation of the brushing roller, the brushing roller drives the brushing wheels to rotate; the controller controls the solenoid valve in the material box to open, and the paint in the material box contacts the brushing wheels through the solenoid valve, and the paint adheres to the surface of the brushing wheels. The conveyor belt drives the board to move towards the side of the brushing wheels. During the movement of the board, the upper surface of the board contacts the brushing wheels, and the brushing wheels brush the paint on the upper surface of the board for grinding marking; the board after being marked with paint moves towards the sanding mechanism under the drive of the conveyor belt, and the sanding mechanism grinds the surface of the board; the sanding mechanism moves and grinds the paint brushed on the upper surface of the board and the uneven positions of the board.

[0020] Preferably, the detection mechanism further includes: a detection chamber, which is arranged on the side of the sanding mechanism away from the spraying chamber. A detection board is arranged inside the detection chamber, and the detection board is connected to the top of the detection chamber through a fixing plate; a point light source and a camera are arranged at the bottom of the detection board.

[0021] The board after being sanded is sucked by the dust suction device and moves to the bottom of the detection board under the action of the conveyor belt. The controller controls the point light source and the camera at the bottom of the detection board to turn on. The point light source irradiates on the surface of the board to illuminate the surface of the board, and the camera takes a picture of the surface of the board. The camera converts the image signal of the surface of the board into an electrical signal and transmits it to the controller. The controller analyzes the electrical signal. If there is no paint residue on the surface of the board, it means that the sanding of the surface of the board meets the sanding standard and is regarded as qualified; if the controller analyzes that there is paint residue on the surface of the board, the controller determines that the sanding of the surface of the board does not meet the standard, and then the controller alarms, and the staff manually performs secondary sanding on the board. Since there is paint residue on the board, it is convenient for the staff to perform secondary sanding on the unqualified board, reducing the time for the staff to find the unqualified position and improving the efficiency of secondary sanding.

[0022] Preferably, a dust suction device is further arranged at the bottom of the detection board, and the dust suction device is connected to the air box through a pipeline.

[0023] After the board is polished by the sanding mechanism, there may still be debris remaining on the surface. During the process of the board moving towards the detection board under the action of the conveyor belt, when the board moves to the bottom of the dust suction device, the exhaust fan is started under the action of the controller. The dust suction device sucks the debris remaining on the surface of the board, and the sucked debris is conveyed through the pipeline to the air box. Subsequently, the debris flows into the dust collection box through the air box for collection, avoiding the remaining debris on the board from interfering with subsequent detection, thereby improving the detection accuracy of the surface quality of the board, ensuring the quality of the board sanded by the sanding mechanism, and guaranteeing the qualified rate of the board after sanding.

[0024] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0025] 1. Since the sanded board moves towards the distal end of the support rod; a channel appears between adjacent arc-shaped blocks; at this time, the air suction port is communicated with the outside air; the air suction port sucks the debris generated by sanding and polishing, and the debris enters the air duct through the air suction port. Since spiral grooves are provided on the inner wall of the air duct; the debris entering the air duct moves spirally along the spiral grooves under the action of the exhaust fan together with the air, generating a cyclone, and the cyclone speeds up the flow rate of the air flow, sucking most of the debris in, and the debris mixed with the air flows into the air box and enters the dust collection box through the air box for collection.

[0026] 2. Under the action of the exhaust fan, the air flows in the channel between adjacent arc-shaped blocks, taking away the heat generated by sanding and polishing the sanded board, realizing the cooling of the surface of the sanded board, and the separation between the side walls of adjacent arc-shaped blocks prevents the heat generated by sanding and polishing from being transferred through the arc-shaped blocks; further cooling the sanding mechanism.

[0027] 3. The camera converts the image signal on the surface of the board into an electrical signal and transmits it to the controller. The controller analyzes the electrical signal. If there is no residual coating on the surface of the board, it indicates that the surface sanding and polishing of the board meet the sanding standard and is regarded as qualified; if the controller analyzes that there is residual coating on the surface of the board, the controller determines that the surface sanding and polishing of the board does not meet the standard, and then the controller alarms, and the staff manually performs secondary sanding and polishing on the board. Since there is residual coating on the board, it is convenient for the staff to perform secondary sanding and polishing on the unqualified board, reducing the time for the staff to find the unqualified position and improving the efficiency of secondary sanding. Description of the Drawings

[0028] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0029] Figure 1 is the main drawing of the present invention;

[0030] Figure 2 is a schematic cross-sectional structure diagram of the present invention;

[0031] Figure 3 is a schematic structural diagram of the sanding mechanism;

[0032] Figure 4 is a front view of the sanding mechanism;

[0033] Figure 5 is a schematic structural diagram of the sanding wheel;

[0034] Figure 6 is a front view of the sanding wheel;

[0035] Figure 7 is a cross-sectional view of the sanding wheel;

[0036] Figure 8 is a schematic structural diagram of the sliding sleeve;

[0037] Figure 9 is a cross-sectional view of the sliding sleeve.

[0038] In the figure: 1. Bracket; 11. Transmission belt; 2. Grinding assembly; 21. Outer shell; 211. Material inlet;

[0039] 3. Sanding mechanism; 31. Support frame; 32. Support rod; 33. Sliding sleeve; 331. Sliding groove; 332. Sliding block; 333. Connecting rod; 34. Sanding wheel; 341. Arc block; 342. Sanding plate; 343. Air duct; 344. Air suction port; 345. Air box;

[0040] 4. Detection mechanism; 41. Spraying cavity; 42. Coating roller; 43. Coating wheel; 44. Material box; 45. Detection cavity; 46. Detection plate. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figures 1-9 , the present invention provides a technical solution:

[0043] A sander with a surface quality detection function, comprising: a bracket 1, a transmission belt 11 is arranged on the surface of the bracket 1, the transmission roller in the transmission belt 11 is connected to the drive shaft in the motor, and the motor is arranged in the bracket 1; a grinding assembly 2 is arranged on the surface of the bracket 1, and the grinding assembly 2 is used for processing the surface of the board;

[0044] The grinding assembly 2 includes: a housing 21, which is arranged on the surface of the bracket 1, and a material inlet 211 is provided on the side wall of the housing 21; a sanding mechanism 3 is arranged inside the housing 21, and the sanding mechanism 3 is used for sanding the plate; a detection mechanism 4 is also arranged inside the housing 21, and the detection mechanism 4 is used for detecting the surface quality of the plate.

[0045] The worker places the plate on the surface of the conveyor belt 11, and then starts the motor inside the bracket 1 through the controller. The motor drive shaft drives the transmission roller to rotate, and the transmission roller drives the conveyor belt 11 to rotate. During the rotation of the conveyor belt 11, the plate is driven to move towards the side close to the grinding assembly 2. The plate enters the housing 21 through the material inlet 211. Subsequently, the worker starts the sanding mechanism 3 through the controller, and the sanding mechanism 3 immediately grinds the surface of the plate. The plate after grinding treatment moves under the action of the conveyor belt 11, and the conveyor belt 11 drives the plate to move towards the side close to the detection mechanism 4. When the plate moves to the bottom of the detection mechanism 4, the controller immediately controls the detection mechanism 4 to detect the quality of the plate surface.

[0046] As a specific embodiment of the present invention, the sanding mechanism 3 includes: a support frame 31, which is arranged on the surface of the bracket 1, a support rod 32 is arranged between the two support frames 31, a sliding sleeve 33 is installed on the support rod 32, a gear is installed on one end surface of the sliding sleeve 33, the gear meshes with the motor gear, and the motor gear is connected to the drive shaft in the motor. The motor is arranged on the outer wall of the housing 21; a sanding wheel 34 is installed on the sliding sleeve 33.

[0047] As a specific embodiment of the present invention, a plurality of sliding grooves 331 are circumferentially arranged on the surface of the sliding sleeve 33, a sliding block 332 is arranged in the sliding grooves 331, and the sliding block 332 is slidably connected to the support rod 32; on the side of the sliding block 332 away from the support rod 32, a connecting rod 333 is arranged, and the connecting rod 333 is hinged to the sliding block 332; the connecting rod 333 passes through the sliding sleeve 33 and is connected to the sanding wheel 34; the connecting rod 333 is slidably connected to the sliding sleeve 33.

[0048] As a specific embodiment of the present invention, the support rod 32 is in the shape of a cam, and the straight line connecting the near repair end and the far repair end of the support rod 32 forms an angle of 135° with the surface of the bracket 1; the radian of the near repair end of the support rod 32 is 210 degrees; the radian of the far repair end of the support rod 32 is 150 degrees.

[0049] As a specific embodiment of the present invention, the sanding wheel 34 is composed of a plurality of arc-shaped blocks 341, and the arc-shaped blocks 341 are connected to the connecting rod 333; a sanding plate 342 is arranged on the side of the arc-shaped block 341 away from the connecting rod 333; the sanding plate 342 is connected to the arc-shaped block 341 through a buckle; an air duct 343 is opened inside the arc-shaped block 341, and an air suction port 344 is opened on the surface side wall of the arc-shaped block 341, and the air suction port 344 is communicated with the air duct 343; a spiral groove is arranged on the inner wall of the air duct 343; an air box 345 is installed on the side of the support rod 32 away from the gear, and the air box 345 is rotationally connected to the sanding wheel 34; the air box 345 is communicated with the air duct 343; a suction fan is arranged in the air box 345, and a dust collection box is arranged on the side of the air box 345 away from the sanding wheel 34, and the air box 345 is communicated with the dust collection box;

[0050] The sheet material moves under the action of the conveyor belt 11, and the sheet material moves toward the side close to the sanding wheel 34. The staff controls the motor on the housing 21 to start through the controller. The motor drive shaft drives the motor gear to rotate. The motor gear drives the gear on the end face of the sliding sleeve 33 to engage and drive. During the rotation driven by the gear, the sliding sleeve 33 is driven to rotate. The sliding sleeve 33 drives the sliding block 332 to rotate. During the rotation of the sliding block 332, the sliding block 332 slides along the rod wall of the support rod 32. The sliding block 332 drives the connecting rod 333 to rotate. The connecting rod 333 drives the arc-shaped block 341 to rotate. The arc-shaped block 341 drives the sanding plate 342 to rotate. During the rotation of the sanding plate 342, the sanding plate 342 sands the surface of the sheet material and grinds the surface of the sheet material flat;

[0051] During the process of the sliding block 332 sliding along the rod wall of the support rod 32, when the sliding block 332 slides to the position of the near-repair end of the support rod 32, since the arc of the near-repair end of the support rod 32 is 210 degrees, the near-repair end of the support rod 32 is hemispherical; during the process of the sliding block 332 sliding on the surface of the support rod 32, the bottom of the arc-shaped block 341 is in contact with the surface of the sliding sleeve 33, and the side walls of adjacent arc-shaped blocks 341 are in contact; the arc-shaped blocks 341 located at the near-repair end position of the support rod 32 form the sanding mechanism 3; when the arc-shaped block 341 contacts the sheet material during rotation, the sanding plate 342 immediately sands the surface of the sheet material;

[0052] When the sanded board 342 after sanding rotates under the action of the arc block 341; the sliding block 332 drives the arc block 341 to move towards the far repair end position of the support rod 32. During the sliding process of the sliding block 332, affected by the far repair end of the support rod 32, since the arc of the far repair end of the support rod 32 is 150 degrees, during the sliding process of the sliding block 332, it moves towards the side close to the sliding sleeve 33. The sliding block 332 slides along the side wall of the sliding groove 331. During the sliding process of the sliding block 332, it drives the connecting rod 333 to move away from the support rod 32. During the movement of the connecting rod 333, it pushes the arc block 341 to move. The arc block 341 moves away from the support rod 32, and the arc block 341 drives the sanded board 342 to move; at this time, the bottom surface of the arc block 341 is separated from the surface of the sliding sleeve 33, and the side walls of adjacent arc blocks 341 are separated from each other; a channel is formed between adjacent arc blocks 341;

[0053] Before sanding, the staff controls the start of the exhaust fan in the air box 345 through the controller, and the exhaust fan continuously extracts the air in the air duct 343; during the sanding process of the sanded board 342, the sanded board 342 grinds the surface of the board to generate debris. Under the rotation of the sanded board 342, the debris is thrown out along the tangent direction. Since the sanded board 342 moves towards the far end of the support rod 32; a channel appears between adjacent arc blocks 341; at this time, the air suction port 344 is communicated with the outside air; the air suction port 344 sucks in the debris generated by sanding, and the debris enters the air duct 343 through the air suction port 344. Since spiral grooves are provided on the inner wall of the air duct 343; the debris entering the air duct 343 is mixed with air and moves spirally along the spiral grooves under the action of the exhaust fan to generate a cyclone. The cyclone speeds up the flow rate of the air flow, sucks in most of the debris, and the debris mixed with air flows into the air box 345 and is collected through the air box 345 into the dust collection box; the air flows in the channel between adjacent arc blocks 341 under the action of the exhaust fan, taking away the heat generated by sanding the sanded board 342, realizing the cooling of the surface of the sanded board 342. The separation between the side walls of adjacent arc blocks 341 prevents the heat generated by sanding from being transferred through the arc block 341; further cooling the sanding mechanism 3;

[0054] If the sanded board 342 is damaged, the staff can remove the damaged sanded board 342 through the buckle, and then connect the new sanded board 342 to the arc block 341; to avoid damage to the sanding wheel 34, resulting in the need to replace the entire sanding wheel 34.

[0055] As a specific embodiment of the present invention, the detection mechanism 4 includes: a spraying chamber 41, which is arranged inside the housing 21. A brushing roller 42 is arranged inside the spraying chamber 41, and the brushing roller 42 is rotatably connected to the side wall of the spraying chamber 41. One end of the brushing roller 42 passes through the side wall of the spraying chamber 41 and is connected to a motor. A brushing wheel 43 is installed on the roller wall of the brushing roller 42. A material box 44 is arranged on the side of the brushing wheel 43 away from the conveyor belt 11, and the material box 44 is filled with paint. An electromagnetic valve is arranged inside the material box 44.

[0056] The staff pours the paint into the material box 44, and then starts the motor on the side wall of the spraying chamber 41 through the controller. The motor drive shaft drives the brushing roller 42 to rotate. During the rotation of the brushing roller 42, the brushing roller 42 drives the brushing wheel 43 to rotate. The controller controls the electromagnetic valve in the material box 44 to open. The paint in the material box 44 contacts the brushing wheel 43 through the electromagnetic valve, and the paint adheres to the surface of the brushing wheel 43. The conveyor belt 11 drives the board to move towards the side of the brushing wheel 43. During the movement of the board, the upper surface of the board contacts the brushing wheel 43, and the brushing wheel 43 brushes the paint on the upper surface of the board for grinding and marking. The board after brushing and marking moves towards the sanding mechanism 3 under the drive of the conveyor belt 11, and the sanding mechanism 3 grinds the surface of the board. The sanding mechanism 3 grinds the paint brushed on the upper surface of the board and the uneven positions of the board.

[0057] As a specific embodiment of the present invention, the detection mechanism 4 further includes: a detection chamber 45, which is arranged on the side of the sanding mechanism 3 away from the spraying chamber 41. A detection board 46 is arranged inside the detection chamber 45, and the detection board 46 is connected to the top of the detection chamber 45 through a fixing plate. A point light source and a camera are arranged at the bottom of the detection board 46.

[0058] The board after grinding and sanding is sucked by the dust suction device and moves to the bottom of the detection board 46 under the action of the conveyor belt 11. The controller controls the point light source and the camera at the bottom of the detection board 46 to turn on. The point light source irradiates the surface of the board to illuminate the surface of the board, and the camera takes a picture of the surface of the board. The camera converts the image signal on the surface of the board into an electrical signal and transmits it to the controller. The controller analyzes the electrical signal. If there is no paint residue on the surface of the board, it means that the grinding and sanding of the board surface meet the grinding standard and is regarded as qualified. If the controller analyzes that there is paint residue on the surface of the board, the controller determines that the grinding and sanding of the board surface do not meet the standard, and then the controller alarms, and the staff manually performs secondary grinding and sanding on the board. Because there is paint residue on the board, it is convenient for the staff to perform secondary grinding and sanding on the unqualified board.

[0059] As a specific embodiment of the present invention, a dust suction device is further arranged at the bottom of the detection board 46, and the dust suction device is connected to the air box 345 through a pipeline.

[0060] After the board is polished by the sanding mechanism 3, there may still be debris remaining on the surface. During the process of the board moving towards the detection board 46 under the action of the conveyor belt 11, when the board moves to the bottom of the dust collection device, the exhaust fan is started under the action of the controller. The dust collection device sucks the debris remaining on the surface of the board, and the sucked debris is conveyed through the pipeline to the air box 345. Subsequently, the debris flows into the dust collection box through the air box 345 for collection, avoiding the remaining debris on the board from interfering with subsequent detections.

[0061] The working principle of the present invention:

[0062] The staff pours the paint into the paint box 44. Subsequently, the motor on the side wall of the spraying chamber 41 is started by controlling through the controller. The motor drive shaft drives the painting roller 42 to rotate. During the rotation of the painting roller 42, the painting roller 42 drives the painting wheel 43 to rotate; the controller controls the solenoid valve in the paint box 44 to open, and the paint in the paint box 44 contacts the painting wheel 43 through the solenoid valve, and the paint adheres to the surface of the painting wheel 43. The conveyor belt 11 drives the board to move towards the side of the painting wheel 43. During the movement of the board, the upper surface of the board contacts the painting wheel 43, and the painting wheel 43 paints the paint on the upper surface of the board for grinding and marking; the board after being painted and marked moves towards the sanding mechanism 3 under the drive of the conveyor belt 11, and the sanding mechanism 3 performs sanding treatment on the surface of the board; the sanding mechanism 3 moves and grinds the paint applied on the upper surface of the board and the uneven positions of the board;

[0063] The board moves under the action of the conveyor belt 11 and moves towards the side close to the sanding wheel 34. The staff starts the motor on the outer shell 21 through the controller. The motor drive shaft drives the motor gear to rotate, and the motor gear drives the gear on the end face of the sliding sleeve 33 to engage and drive. During the rotation of the gear, it drives the sliding sleeve 33 to rotate. The sliding sleeve 33 drives the sliding block 332 to rotate. During the rotation of the sliding block 332, the sliding block 332 slides along the rod wall of the support rod 32. The sliding block 332 drives the connecting rod 333 to rotate, and the connecting rod 333 drives the arc block 341 to rotate. The arc block 341 drives the sanding plate 342 to rotate. During the rotation of the sanding plate 342, the sanding plate 342 sands the surface of the board to grind the surface of the board flat;

[0064] During the process of the sliding block 332 sliding along the rod wall of the support rod 32, when the sliding block 332 slides to the position near the repair end of the support rod 32, since the arc of the near repair end of the support rod 32 is 210 degrees, the near repair end of the support rod 32 is in a hemispherical shape; during the process of the sliding block 332 sliding on the surface of the support rod 32, the bottom of the arc block 341 contacts the surface of the sliding sleeve 33, and the side walls of adjacent arc blocks 341 contact; the arc blocks 341 located at the near repair end position of the support rod 32 form the sanding mechanism 3; when the arc block 341 contacts the board during rotation, the sanding plate 342 immediately sands the surface of the board.

[0065] When the sanded board 342 after sanding rotates under the action of the arc block 341; the sliding block 332 drives the arc block 341 to move towards the far end position of the support rod 32. During the sliding process of the sliding block 332, it is affected by the far end of the support rod 32. Since the arc of the far end of the support rod 32 is 150 degrees, during the sliding process of the sliding block 332, it moves towards the side close to the sliding sleeve 33. The sliding block 332 slides along the side wall of the sliding groove 331. During the sliding process of the sliding block 332, it drives the connecting rod 333 to move away from the support rod 32. During the movement of the connecting rod 333, it pushes the arc block 341 to move. The arc block 341 moves away from the support rod 32. The arc block 341 drives the sanded board 342 to move; at this time, the bottom surface of the arc block 341 is separated from the surface of the sliding sleeve 33, and the side walls of adjacent arc blocks 341 are separated from each other; a channel is formed between adjacent arc blocks 341;

[0066] Before sanding, the staff controls the start of the exhaust fan in the air box 345 through the controller, and the exhaust fan continuously extracts the air in the air duct 343; during the sanding process of the sanded board 342, the sanded board 342 grinds the surface of the board to generate debris. Under the action of the rotation of the sanded board 342, the debris is thrown out along the tangent direction. Since the sanded board 342 moves towards the far end of the support rod 32; a channel appears between adjacent arc blocks 341; at this time, the air suction port 344 is communicated with the outside air; the air suction port 344 sucks in the debris generated by sanding, and the debris enters the air duct 343 through the air suction port 344. Since spiral grooves are provided on the inner wall of the air duct 343; the debris entering the air duct 343 is mixed with air and moves spirally along the spiral grooves under the action of the exhaust fan to generate a cyclone. The cyclone speeds up the flow rate of the air flow, sucks in most of the debris, and the debris mixed with air flows into the air box 345 and is collected through the air box 345 into the dust collection box; the air flows in the channel between adjacent arc blocks 341 under the action of the exhaust fan, taking away the heat generated by sanding the sanded board 342, realizing the cooling of the surface of the sanded board 342. The separation between the side walls of adjacent arc blocks 341 prevents the heat generated by sanding from being transferred through the arc blocks 341; further cooling the sanding mechanism 3;

[0067] If the sanded board 342 is damaged, the staff can remove the damaged sanded board 342 through the buckle and then connect the brand-new sanded board 342 to the arc block 341; avoiding damage to the sanding wheel 34, resulting in the need to replace the entire sanding wheel 34;

[0068] After the board is polished by the sanding mechanism 3, there may still be debris remaining on its surface. During the process of the board moving towards the detection board 46 under the action of the conveyor belt 11, when the board moves to the bottom of the dust suction device, the exhaust fan is started under the action of the controller. The dust suction device sucks the debris remaining on the surface of the board, and the sucked debris is transported through the pipeline to the air box 345. Subsequently, the debris flows into the dust collection box through the air box 345 for collection, preventing debris from remaining on the board and interfering with subsequent detection.

[0069] The polished board is sucked by the dust suction device and moves to the bottom of the detection board 46 under the action of the conveyor belt 11. The controller controls the point light source and the camera at the bottom of the detection board 46 to turn on. The point light source irradiates the surface of the board to illuminate it, and the camera takes pictures of the surface of the board. The camera converts the image signal on the surface of the board into an electrical signal and transmits it to the controller. The controller analyzes the electrical signal. If there is no residual coating on the surface of the board, it means that the sanding of the board surface meets the sanding standard and is regarded as qualified; if the controller analyzes that there is residual coating on the surface of the board, the controller determines that the sanding of the board surface does not meet the standard, and then the controller alarms, and the staff manually performs secondary sanding on the board. Since there is residual coating on the board, it is convenient for the staff to perform secondary sanding on the unqualified board.

[0070] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0071] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A sander with a surface quality detection function, characterized in that: Comprising: A bracket (1), on the surface of which a conveyor belt (11) is arranged. The conveyor rollers in the conveyor belt (11) are connected to the drive shaft in a motor, and the motor is arranged inside the bracket (1); on the surface of the bracket (1), a grinding assembly (2) is arranged, and the grinding assembly (2) is used for processing the surface of a plate. The grinding assembly (2) includes: a housing (21), which is arranged on the surface of the bracket (1), and a material inlet (211) is formed in the side wall of the housing (21); a sanding mechanism (3) is arranged inside the housing (21), and the sanding mechanism (3) is used for sanding the plate; a detection mechanism (4) is also arranged inside the housing (21), and the detection mechanism (4) is used for detecting the surface quality of the plate. The sanding mechanism (3) includes: a support frame (31), which is arranged on the surface of the bracket (1), a support rod (32) is arranged between the two support frames (31), a sliding sleeve (33) is installed on the support rod (32), a gear is installed on one end face of the sliding sleeve (33), the gear meshes with a motor gear, the motor gear is connected to the drive shaft in the motor, and the motor is arranged on the outer wall of the housing (21); a sanding wheel (34) is installed on the sliding sleeve (33). A plurality of sliding grooves (331) are formed in a circumferential manner on the surface of the sliding sleeve (33), sliding blocks (332) are arranged in the sliding grooves (331), and the sliding blocks (332) are slidably connected to the support rod (32); on the side of the sliding block (332) away from the support rod (32), a connecting rod (333) is arranged, and the connecting rod (333) is hinged to the sliding block (332); the connecting rod (333) passes through the sliding sleeve (33) and is connected to the sanding wheel (34); the connecting rod (333) is slidably connected to the sliding sleeve (33). The sanding wheel (34) is composed of a plurality of arc-shaped blocks (341), and the arc-shaped blocks (341) are connected to the connecting rod (333); on the side of the arc-shaped block (341) away from the connecting rod (333), a sanding plate (342) is arranged; the sanding plate (342) is connected to the arc-shaped block (341) through a buckle; an air duct (343) is formed inside the arc-shaped block (341), an air suction port (344) is formed in the side wall of the surface of the arc-shaped block (341), and the air suction port (344) is communicated with the air duct (343); spiral grooves are arranged on the inner wall of the air duct (343); on the side of the support rod (32) away from the gear, an air box (345) is installed, and the air box (345) is rotatably connected to the sanding wheel (34); the air box (345) is communicated with the air duct (343); a suction fan is arranged inside the air box (345), a dust collection box is arranged on the side of the air box (345) away from the sanding wheel (34), and the air box (345) is communicated with the dust collection box.

2. The sander with a surface quality detection function according to claim 1, characterized in that: The support rod (32) is cam-shaped. The straight line connecting the near-repair end and the far-repair end of the support rod (32) forms a 135° angle with the surface of the bracket (1). The arc of the near-repair end of the support rod (32) is 210 degrees. The arc of the far-repair end of the support rod (32) is 150 degrees.

3. The sander with a surface quality detection function according to claim 1, characterized in that: The detection mechanism (4) includes: a spraying chamber (41). The spraying chamber (41) is arranged inside the housing (21). A brushing roller (42) is arranged inside the spraying chamber (41). The brushing roller (42) is rotationally connected to the side wall of the spraying chamber (41). One end of the brushing roller (42) passes through the side wall of the spraying chamber (41) and is connected to a motor. A brushing wheel (43) is installed on the roller wall of the brushing roller (42). A material box (44) is arranged on the side of the brushing wheel (43) away from the conveyor belt (11). The material box (44) is filled with paint. A solenoid valve is arranged inside the material box (44).

4. A sander with a surface quality detection function according to claim 3, characterized in that: The detection mechanism (4) further includes: a detection chamber (45). The detection chamber (45) is arranged on the side of the sanding mechanism (3) away from the spraying chamber (41). A detection plate (46) is arranged inside the detection chamber (45). The detection plate (46) is connected to the top of the detection chamber (45) through a fixing plate. A point light source and a camera are arranged at the bottom of the detection plate (46).

5. The sander with a surface quality detection function according to claim 4, characterized in that: A dust suction device is further arranged at the bottom of the detection plate (46). The dust suction device is connected to the air box (345) through a pipeline.

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