Intelligent polishing device for metal composite plate

Abstract

The present application relates to the field of polishing equipment, especially to a metal composite plate intelligent polishing device, comprising a conveying table, a pretreatment mechanism, a liquid spraying mechanism, a smearing mechanism, a polishing mechanism and a dust collection mechanism are sequentially arranged on the upper end of the conveying table along the plate conveying direction; the pretreatment mechanism comprises a positioning press roller and a pair of cleaning rollers; the liquid spraying mechanism comprises a liquid storage tank, a liquid distribution pipe is slidably installed at the front end of the liquid storage tank, and a plurality of spray heads are arranged at the bottom of the liquid distribution pipe at equal intervals; the smearing mechanism comprises a base, a liquid application plate is rotatably installed below the base, and at least one group of vertical rod one and vertical rod two are slidably installed inside the base. The present application effectively expands the liquid spraying range to fully cover the plate, and enables the polishing liquid to be evenly distributed in the width direction of the plate, and fully stirs the polishing liquid in the liquid storage tank, so that the abrasive in the polishing liquid is evenly distributed to avoid abrasive settlement and agglomeration, which is conducive to improving the polishing effect.

Description

Technical Field

[0001] This invention relates to the field of polishing equipment technology, and in particular to an intelligent polishing device for metal composite plates. Background Technology

[0002] Polishing of metal composite panels is a crucial process that removes surface defects, oxide layers, and rolling marks from the panels using mechanical or chemical methods, aiming to achieve a uniform mirror or matte finish. The process typically employs abrasive belts, flap wheels, or wool wheels in conjunction with specialized polishing compounds to progressively grind the stainless steel, aluminum, and other coatings onto the substrate. This treatment not only significantly enhances the decorative properties and corrosion resistance of metal composite panels but also eliminates minor stresses, providing an ideal base for subsequent coating or molding.

[0003] Before polishing metal composite panels, polishing equipment needs to apply polishing liquid to the surface of the panel to form a liquid film. However, current polishing equipment often uses nozzles with fixed positions to spray the polishing liquid onto the surface of the panel. The polishing liquid will be concentrated near the nozzle area, resulting in uneven distribution of the polishing liquid on the surface of the panel. At the same time, existing polishing equipment cannot accurately adjust the thickness of the polishing liquid application, which seriously affects the polishing effect. Summary of the Invention

[0004] The purpose of this invention is to provide an intelligent polishing device for metal composite plates, which aims to solve the above-mentioned technical problems.

[0005] The objective of this invention can be achieved through the following technical solutions: A smart polishing device for metal composite plates includes a conveyor table, on the upper end of which a pretreatment mechanism, a spraying mechanism, a coating mechanism, a polishing mechanism, and a dust collection mechanism are sequentially arranged along the conveying direction of the plate. The pretreatment mechanism includes a positioning pressure roller and a pair of cleaning rollers. The positioning pressure roller abuts against the surface of the board and drives the cleaning rollers to swing back and forth. The spraying mechanism includes a liquid storage tank, a liquid distribution tube slidably installed at the front end of the liquid storage tank, a plurality of nozzles evenly spaced at the bottom of the liquid distribution tube, a drive motor fixed at the upper end of the liquid storage tank, a swing arm rotatably installed at the bottom of the liquid storage tank, and a movable rod inside the liquid storage tank. The drive motor drives the liquid distribution tube to reciprocate perpendicular to the conveying direction through the swing arm, and simultaneously drives the movable rod to reciprocate up and down to stir the polishing liquid in the liquid storage tank. The coating mechanism includes a base, a coating plate is rotatably mounted below the base, and at least one set of vertical rods 1 and 2 are slidably mounted inside the base. The bottoms of vertical rods 1 and 2 are slidably engaged with the two ends of the top of the coating plate, respectively. An elastic airbag is provided at the top of vertical rod 2. The pressure difference of the elastic airbag will drive the coating plate to rotate through vertical rod 2, and the distance between the bottom of the coating plate and the surface of the plate will be monitored by the height change of vertical rod 1. The polishing mechanism is fixed on the upper end of the conveyor table and is used to polish the surface of the sheet material; The dust collection mechanism is fixed on the upper part of the conveyor platform and close to the polishing mechanism, and is used to collect the dust generated during polishing.

[0006] As a further embodiment of the present invention: the two ends of the positioning pressure roller are rotatably mounted on the conveyor table and driven to rotate by a servo motor; the cleaning roller is symmetrically arranged on both sides of the front end of the positioning pressure roller; a transmission assembly and a swing plate are provided between the cleaning roller and the positioning pressure roller; one end of the swing plate is fixedly connected to the cleaning roller through a connecting rod; the other end of the swing plate is rotatably mounted on the conveyor table; fixed seats are fixedly connected to both sides of the conveyor table; and a tension spring is provided between the swing plate and the fixed seat.

[0007] As a further embodiment of the present invention: the transmission assembly includes a driving bevel gear, a driven bevel gear, and a synchronizing gear. The driving bevel gear is fixedly sleeved on both ends of the roller shaft of the positioning pressure roller. The driven bevel gear is rotatably mounted on the conveyor table and meshes with the driving bevel gear. A toothed gear is fixedly sleeved on the axle of the driven bevel gear. The synchronizing gear is fixedly sleeved on the swing plate and meshes with the toothed gear.

[0008] As a further embodiment of the present invention: a support extends from one side of the liquid storage tank, the uniform liquid tube is slidably installed through both ends of the support, the bottom of one side of the liquid storage tank is connected to the uniform liquid tube through a liquid guiding hose, a micro pump is installed on the liquid guiding hose, a rack is installed along the axis on the side wall of the uniform liquid tube, the swing arm is rotatably engaged with the support through a pivot, one end of the swing arm is provided with a sector tooth that meshes with the rack, the other end of the swing arm is provided with a sliding groove, a rotating rod is provided at the output end of the drive motor, the bottom of the rotating rod passes through the liquid storage tank and is fixedly connected to a turntable, and a sliding pin adapted to slide in the sliding groove is fixedly provided at the bottom of the turntable.

[0009] As a further aspect of the present invention: a sleeve for the rotating rod to fit through is provided in the center of the movable rod, a closed curved groove is provided on the surface of the rotating rod, a fitting block adapted to slide in the closed curved groove is fixed on the inner wall of the sleeve, threaded sleeves are rotatably installed at both ends of the movable rod, threaded groove rods are fixed at both ends inside the liquid storage tank, the threaded groove rods are threaded through the threaded sleeves, and stirring blades are evenly provided on the outer wall of the threaded sleeves.

[0010] As a further embodiment of the present invention: the two ends of the base are fixedly installed on the conveying platform by support frames, an air pump is fixedly installed at the upper end of the base, and an air pipe is connected to the output end of the air pump. A sensing block is fixedly installed at the top of the first vertical rod, and a displacement sensor corresponding to the first sensing block is installed at the upper end of the base. The coating plate is rotatably engaged with the base through a rotating shaft. Sliding grooves are provided at both ends of the top of the coating plate. A sliding sleeve is fixedly installed at the bottom of the first vertical rod, and a sliding sleeve is fixedly installed at the bottom of the second vertical rod. Both ends of the first and second sliding sleeves are slidably engaged with the corresponding sliding grooves.

[0011] As a further embodiment of the present invention: the elastic airbag is connected to the ventilation pipe through a branch pipe, a movable block is fixedly provided at the top of the second vertical rod, the bottom of the elastic airbag is fixedly connected to the movable block, the top of the elastic airbag is fixedly installed on the fixed block, the fixed block is fixedly installed in the base, and an air pressure sensor is provided inside the elastic airbag.

[0012] As a further aspect of the present invention: the distance between the rotating shaft and the first plumb rod is smaller than the distance between the rotating shaft and the second plumb rod.

[0013] As a further aspect of the present invention: the base is provided with movable spaces for the lifting and lowering of the sensing block and the movable block, and the base is also provided with movable spaces for the expansion and contraction of the elastic airbag.

[0014] As a further aspect of the present invention: a mounting frame is provided extending from one side of the base, and laser thickness gauges are arranged on the mounting frame along the width direction of the plate.

[0015] The beneficial effects of this invention are: (1) By setting up a spraying mechanism, the drive motor drives the liquid distribution tube to move back and forth in a straight line through the turntable. Combined with the vertical conveying process of the board, the polishing liquid sprayed from the nozzle can be sprayed onto the surface of the board in a wave shape, thereby effectively expanding the spraying range so that it can fully cover the board. At the same time, the polishing liquid can be evenly distributed in the width direction of the board, which is beneficial to improving the polishing quality.

[0016] (2) During the process of the drive motor driving the turntable to achieve the reciprocating motion of the uniform liquid tube, the rotating rod will drive the sleeve and the movable rod to move up and down synchronously, and the screw sleeve will drive the stirring blade to rotate synchronously in the up and down reciprocating motion. This will enable the polishing liquid in the storage tank to be fully and comprehensively stirred, so that the abrasive in the polishing liquid is evenly distributed to avoid the abrasive settling and agglomeration, which is beneficial to improving the polishing effect. The reciprocating motion of the uniform liquid tube and the stirring process of the stirring blade are coordinated and linked, with a compact and ingenious structure, reliable and stable transmission, and strong practicality.

[0017] (3) By setting up a coating mechanism, when the coating plate is kept in a fixed position, the polishing liquid can be coated evenly. When the micro pump inflates and deflates the elastic airbag through the air pipe and branch pipe, the elastic airbag will expand and contract accordingly. At the same time, the deformation of the elastic airbag will push the coating plate to rotate around the rotating shaft through the second vertical rod. The height change of the sensing block at the top of the first vertical rod is monitored by the displacement sensor, so as to provide real-time feedback on the distance change between the bottom of the coating plate and the surface of the plate, thereby realizing the precise adjustment process of the coating thickness of the polishing liquid by the coating plate. Attached Figure Description

[0018] The invention will now be further described with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the pretreatment mechanism in this invention.

[0021] Figure 3 This is a schematic diagram of the transmission component in this invention.

[0022] Figure 4 This is a schematic diagram of the liquid spraying mechanism in this invention.

[0023] Figure 5 This is a schematic diagram of the internal structure of the liquid storage tank in this invention.

[0024] Figure 6 This is a schematic diagram of the bottom structure of the liquid storage tank in this invention.

[0025] Figure 7 This is a schematic diagram of the rotating rod and fixing rod in this invention.

[0026] Figure 8 This is a schematic diagram of the movable rod in this invention.

[0027] Figure 9 This is a schematic diagram of the application mechanism in this invention.

[0028] Figure 10 This is a schematic diagram of the internal structure of the base in this invention.

[0029] Figure 11 This is a schematic diagram of the adjustment of the coating plate in this invention.

[0030] Figure 12 This is a schematic diagram of the polishing mechanism and the dust collection mechanism in this invention.

[0031] In the diagram: 100, conveyor table; 200. Pre-treatment mechanism; 210. Positioning pressure roller; 220. Servo motor; 230. Transmission assembly; 231. Driving bevel gear; 232. Driven bevel gear; 233. Gear with missing tooth; 234. Synchronizing gear; 240. Swing plate; 241. Connecting rod; 242. Tension spring; 243. Fixing base; 250. Cleaning roller; 300. Spraying mechanism; 310. Liquid storage tank; 311. Support; 312. Micro pump; 313. Liquid guiding hose; 314. Screw rod; 320. Liquid distribution tube; 321. Nozzle; 322. Rack; 330. Drive motor; 331. Rotating rod; 3311. Closed curved groove; 332. Turntable; 333. Sliding pin; 340. Swing rod; 341. Pivot; 342. Sector tooth; 343. Slide groove; 350. Movable rod; 351. Rod sleeve; 3511. Mating block; 352. Screw sleeve; 353. Stirring blade; 400. Coating mechanism; 410. Base; 411. Support frame; 412. Air pump; 413. Vent pipe; 414. Displacement sensor; 420. Coating plate; 421. Rotating shaft; 422. Sliding groove; 430. Vertical rod one; 431. Sliding sleeve one; 432. Sensing block; 440. Vertical rod two; 441. Sliding sleeve two; 442. Movable block; 443. Elastic airbag; 444. Fixed block; 445. Air pressure sensor; 446. Branch pipe; 450. Mounting bracket; 451. Laser thickness gauge; 500 Polishing mechanism; 510 Fixture; 520 Polishing belt assembly; 530 Drive assembly; 600. Vacuuming mechanism; 610. Vacuum hood; 620. Negative pressure fan. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1 As shown, the present invention is an intelligent polishing device for metal composite plates, including a conveyor table 100. The upper end of the conveyor table 100 is sequentially provided with a pretreatment mechanism 200, a spraying mechanism 300, a coating mechanism 400, a polishing mechanism 500, and a dust collection mechanism 600 along the conveying direction of the plate.

[0034] like Figure 2 and Figure 3 As shown, the pretreatment mechanism 200 includes a positioning pressure roller 210 and a pair of cleaning rollers 250. The positioning pressure roller 210 abuts against the surface of the board and drives the cleaning rollers 250 to swing back and forth.

[0035] The positioning roller 210 is rotatably mounted on the conveyor table 100 at both ends and driven to rotate by the servo motor 220. The cleaning roller 250 is symmetrically arranged on both sides of the front end of the positioning roller 210. A transmission assembly 230 and a swing plate 240 are provided between the cleaning roller 250 and the positioning roller 210. One end of the swing plate 240 is fixedly connected to the cleaning roller 250 through a connecting rod 241. The other end of the swing plate 240 is rotatably mounted on the conveyor table 100. Fixed seats 243 are fixedly connected to both sides of the conveyor table 100. A tension spring 242 is provided between the swing plate 240 and the fixed seats 243.

[0036] The transmission assembly 230 includes a driving bevel gear 231, a driven bevel gear 232, and a synchronizing gear 234. The driving bevel gear 231 is fixedly sleeved on both ends of the roller shaft of the positioning pressure roller 210. The driven bevel gear 232 is rotatably mounted on the conveyor table 100 and meshes with the driving bevel gear 231. A toothed gear 233 is fixedly sleeved on the axle of the driven bevel gear 232. The synchronizing gear 234 is fixedly sleeved on the swing plate 240 and meshes with the toothed gear 233.

[0037] Specifically, by setting up a pretreatment mechanism 200, the positioning roller 210 will always press against the surface of the board during the conveying process, so that the board will not easily jump or shake when it is conveyed forward, thereby improving the stability and reliability of the conveying process, and also facilitating the subsequent spraying and application of polishing liquid. When the servo motor 220 drives the positioning roller 210 to rotate, it will synchronously drive the active bevel gear 231 to rotate. The active bevel gear 231 will synchronously drive the toothed gear 233 to rotate through the driven bevel gear 232. When rotating, the toothed gear 233 will intermittently mesh with the synchronous gear 234. When meshing, the synchronous gear 234 will drive the swing plate 240 to swing, and drive the cleaning roller 250 to swing synchronously through the connecting rod 241. At this time, the tension spring 242 begins to stretch and deform. When the toothed gear 233 disengages from the synchronous gear 234, the swing plate 240 will drive the cleaning roller 250 to swing in the opposite direction under the action of the tension spring 242 until it re-meets with the toothed gear 233. This allows the cleaning roller 250 to sweep back and forth on the surface of the board, effectively cleaning the dust particles on the board, ensuring the cleanliness of the board and avoiding affecting the polishing quality.

[0038] It should be noted that in this embodiment, the two sets of cleaning rollers 250 are symmetrically arranged, and the sweeping radius of the cleaning rollers 250 is exactly half the width of the board. This allows the two sets of cleaning rollers 250 to fully cover the board when sweeping and cleaning at the same time, avoiding any missed areas and also preventing structural interference when the two sets of cleaning rollers 250 swing back and forth.

[0039] like Figures 4-8As shown, the spraying mechanism 300 includes a liquid storage tank 310. A liquid distribution tube 320 is slidably installed at the front end of the liquid storage tank 310. Several nozzles 321 are arranged at equal intervals at the bottom of the liquid distribution tube 320. A drive motor 330 is fixedly installed at the upper end of the liquid storage tank 310. A swing rod 340 is rotatably installed at the bottom of the liquid storage tank 310. A movable rod 350 is provided inside the liquid storage tank 310. The drive motor 330 drives the liquid distribution tube 320 to reciprocate perpendicular to the conveying direction through the swing rod 340, and simultaneously drives the movable rod 350 to reciprocate up and down to stir the polishing liquid in the liquid storage tank 310.

[0040] The storage tank 310 has a support 311 extending from one side. The uniform liquid pipe 320 is slidably installed through both ends of the support 311. The bottom of one side of the storage tank 310 is connected to the uniform liquid pipe 320 through a liquid guiding hose 313. A micro pump 312 is installed on the liquid guiding hose 313. A rack 322 is installed along the axis on the side wall of the uniform liquid pipe 320. A rocker arm 340 is rotatably engaged with the support 311 through a pivot 341. One end of the rocker arm 340 is provided with a fan-shaped tooth 342 that meshes with the rack 322. The other end of the rocker arm 340 is provided with a sliding groove 343. A rotating rod 331 is provided at the output end of the drive motor 330. The bottom of the rotating rod 331 passes through the storage tank 310 and is fixedly connected to a turntable 332. The bottom of the turntable 332 is fixedly provided with a sliding pin 333 that is adapted to slide in the sliding groove 343.

[0041] Specifically, by setting up a spraying mechanism 300, a micro pump 312 pumps polishing liquid from the storage tank 310 into the uniform liquid pipe 320 through a liquid guiding hose 313, and sprays it out through the nozzle 321. At the same time, the drive motor 330 drives the turntable 332 to rotate. Due to the limiting sliding cooperation between the sliding pin 333 and the sliding groove 343, the turntable 332 will drive the swing arm 340 to swing back and forth around the pivot 341 when rotating, and drive the uniform liquid pipe 320 to move back and forth in a straight line through the fan-shaped teeth 342. Combined with the vertical conveying process of the board, the polishing liquid sprayed by the nozzle 321 can be sprayed onto the surface of the board in a wave shape, thereby effectively expanding the spraying range so that it can fully cover the board. At the same time, it can make the polishing liquid evenly distributed in the width direction of the board, which is conducive to improving the polishing quality and solving the problem that the traditional fixed-point spraying method is prone to incomplete coverage and uneven distribution of polishing liquid.

[0042] It should be noted that during the reciprocating motion of the liquid distribution tube 320 in this embodiment, the maximum stroke between the two extreme positions of the liquid distribution tube 320 is slightly greater than the width of the board, so that the polishing liquid sprayed by the leftmost and rightmost nozzles 321 will just cover the edge areas on both sides of the board. At the same time, since the polishing liquid has a certain fluidity, it will inevitably overflow from the edge of the board during the spraying and coating process. Therefore, in this embodiment, the bottom of the conveyor table 100 is provided with a corresponding collection structure, which can be a liquid guide trough, a collection box, etc. The specific structure can be determined according to actual needs. The configuration of the collection structure is a conventional technical means in the art and is known in the prior art, so it will not be described in detail here.

[0043] The movable rod 350 has a sleeve 351 in the center for the rotating rod 331 to pass through. The rotating rod 331 has a closed curved groove 3311 on its surface. The inner wall of the sleeve 351 is fixed with a mating block 3511 that is adapted to slide with the closed curved groove 3311. The movable rod 350 has screw sleeves 352 rotatably installed at both ends. The storage tank 310 has screw groove rods 314 fixed at both ends. The screw groove rods 314 and the screw sleeves 352 are threaded through and engaged. The outer wall of the screw sleeves 352 is evenly provided with stirring blades 353.

[0044] Specifically, during the process of the drive motor 330 driving the turntable 332 to rotate and realize the reciprocating motion of the liquid distribution tube 320, the rotating rod 331 will rotate synchronously. Utilizing the limiting sliding fit between the closed curved groove 3311 and the mating block 3511, the rotating rod 331 will drive the sleeve 351 and the movable rod 350 to reciprocate up and down when rotating. As the threaded sleeves 352 at both ends of the movable rod 350 slide up and down along the threaded groove rod 314, the spiral groove on the surface of the threaded groove rod 314 will drive the threaded sleeves 352 to rotate. This allows the threaded sleeves 352 to drive the stirring blade 353 to rotate synchronously during the up and down reciprocating motion, thereby fully and comprehensively stirring and dispersing the polishing liquid in the storage tank 310. This ensures that the abrasive in the polishing liquid is evenly distributed to avoid sedimentation and agglomeration, which is beneficial to improving the polishing effect.

[0045] like Figures 9-10 As shown, the coating mechanism 400 includes a base 410, with a coating plate 420 rotatably mounted below the base 410. At least one set of vertical rods 430 and 440 are slidably mounted inside the base 410. The bottoms of vertical rods 430 and 440 are slidably engaged with the two ends of the top of the coating plate 420, respectively. An elastic airbag 443 is provided at the top of vertical rod 440. The pressure difference of the elastic airbag 443 will drive the coating plate 420 to rotate through vertical rod 440, and the distance between the bottom of the coating plate 420 and the surface of the plate will be monitored by the height change of vertical rod 430.

[0046] The base 410 is fixedly mounted on the conveyor table 100 at both ends by support frames 411. An air pump 412 is fixedly mounted on the upper end of the base 410. An air pipe 413 is connected to the output end of the air pump 412. A sensing block 432 is fixedly mounted on the top of the first vertical rod 430. A displacement sensor 414 corresponding to the sensing block 432 is set on the upper end of the base 410. The coating plate 420 is rotatably engaged with the base 410 through a rotating shaft 421. Sliding grooves 422 are provided at both ends of the top of the coating plate 420. A sliding sleeve 431 is fixedly mounted on the bottom of the first vertical rod 430. A sliding sleeve 441 is fixedly mounted on the bottom of the second vertical rod 440. Both ends of the sliding sleeve 431 and the sliding sleeve 441 are slidably engaged with the corresponding sliding grooves 422.

[0047] The elastic airbag 443 is connected to the ventilation pipe 413 through the branch pipe 446. The top of the vertical rod 440 is fixed with a movable block 442. The bottom of the elastic airbag 443 is fixed to the movable block 442. The top of the elastic airbag 443 is fixedly installed on the fixed block 444. The fixed block 444 is fixed in the base 410. The elastic airbag 443 is equipped with an air pressure sensor 445.

[0048] Specifically, by setting up an application mechanism 400, one end of the application plate 420 is connected to an elastic airbag 443 fixed in the base 410 via a second vertical rod 440. In the initial state, the application plate 420 is tilted, and a gap is left between the bottom of the application plate 420 and the surface of the plate to allow the polishing liquid to pass through. When the application plate 420 maintains a fixed posture, the polishing liquid can be applied evenly. When the micro pump 312 inflates and deflates the elastic airbag 443 through the air pipe 413 and the branch pipe 446, the elastic airbag 443 will expand and contract accordingly. At the same time, the deformation of the elastic airbag 443 will push the application plate 420 to rotate around the rotating shaft 421 via the second vertical rod 440. The height change of the sensing block 432 at the top of the first vertical rod 430 is monitored by the displacement sensor 414, so as to provide real-time feedback on the change in the distance between the bottom of the application plate 420 and the surface of the plate, thereby realizing the precise adjustment of the thickness of the polishing liquid application by the application plate 420. During this process, the sliding engagement of sliding sleeve 431 and sliding sleeve 441 with sliding groove 422 will enable vertical rod 430 and vertical rod 440 to move up and down accordingly as the coating plate 420 swings. At the same time, the air pressure sensor 445 can monitor the air pressure change in the elastic airbag 443 in real time. Combined with the monitoring data of displacement sensor 414, it can help the staff to better control and adjust the pressure in the elastic airbag 443.

[0049] like Figure 11 As shown, the distance between the rotating shaft 421 and the first vertical rod 430 is smaller than the distance between the rotating shaft 421 and the second vertical rod 440.

[0050] Specifically, when the coating plate 420 swings, the lever arm formed between the first plumb rod 430 and the coating plate 420 is shorter than that between the second plumb rod 440 and the coating plate 420. This creates a displacement scaling structure, meaning the longitudinal displacement distance L1 of the first plumb rod 430 is less than the longitudinal displacement distance L2 of the second plumb rod 440. The change in the longitudinal displacement of the second plumb rod 440 is related to the pressure difference change of the elastic airbag 443, effectively expanding the air pressure adjustment range of the elastic airbag 443. When fine adjustment is made to the distance between the bottom of the coating plate 420 and the surface of the substrate, the corresponding longitudinal displacement of the second plumb rod 440 will be greater than the adjustment distance. Therefore, the corresponding elastic airbag 443 can obtain a wider air pressure adjustment range, allowing for more accurate adjustment of the coating thickness through air pressure control of the elastic airbag 443.

[0051] like Figure 10 As shown, the base 410 has movable spaces inside for the lifting and lowering of the sensing block 432 and the movable block 442. The base 410 also has movable spaces inside for the expansion and contraction of the elastic airbag 443, so that when the coating plate 420 is rotated and adjusted, the sensing block 432 and the movable block 442 will not interfere with each other when they move or the elastic airbag 443 expands and contracts.

[0052] like Figure 9 and Figure 10 As shown, a mounting bracket 450 extends from one side of the base 410. A laser thickness gauge 451 is arranged on the mounting bracket 450 along the width direction of the plate. The laser thickness gauge 451 is used to accurately measure the thickness of the polishing liquid applied to the surface of the plate online, and the detection data is fed back to the air pump 412. By controlling the air pump 412 to inflate and deflate the elastic airbag 443 accordingly, the coating thickness is precisely adjusted until the specified thickness is reached.

[0053] like Figure 1 and Figure 12 As shown, the polishing mechanism 500 is fixed to the upper end of the conveyor table 100 and is used to polish the surface of the sheet metal. The polishing mechanism 500 typically includes a fixed frame 510, a polishing belt assembly 520, and a drive assembly 530. The fixed frame 510 is fixedly mounted on the conveyor table 100 as a basic support structure. The polishing belt assembly 520 includes a polishing belt, a drive shaft, and a tension shaft. The polishing belt is made of wear-resistant material and its surface is covered with fine polishing particles, which can effectively remove defects from the surface of the metal composite sheet. The polishing belt is tensioned between the drive shaft and the tension shaft, and the drive assembly 530 drives the drive shaft to rotate, so that the polishing belt can polish the surface of the sheet metal. The drive assembly 530 can be an electric motor, a pneumatic motor, or other suitable drive device, the selection of which depends on the specific polishing requirements and equipment specifications.

[0054] A dust collection mechanism 600 is fixed to the upper end of the conveyor table 100 and close to the polishing mechanism 500 to collect dust generated during polishing. The dust collection mechanism 600 typically includes a dust collection hood 610 and a negative pressure fan 620. The dust collection hood 610 is arranged on one side of the polishing belt assembly 520 with its bottom end close to the polishing station. At the same time, the negative pressure fan 620 provides strong suction to collect and capture dust particles generated during the polishing process, thereby ensuring the cleanliness of the board surface, improving air quality, and reducing the risk of workers inhaling dust.

[0055] The working principle of this invention is as follows: Figures 1-12 As shown, during use, the metal composite sheet is conveyed forward on the conveyor table 100 and passes sequentially through the pretreatment mechanism 200, the spraying mechanism 300, the coating mechanism 400, the polishing mechanism 500, and the dust collection mechanism 600.

[0056] When passing through the pretreatment mechanism 200, the positioning roller 210 will always press against the surface of the board, so that the board will not easily jump or shake when it is conveyed forward. When the servo motor 220 drives the positioning roller 210 to rotate, it will synchronously drive the active bevel gear 231 to rotate. The active bevel gear 231 will synchronously drive the toothed gear 233 to rotate through the driven bevel gear 232. When the toothed gear 233 rotates, it will intermittently mesh with the synchronous gear 234, so that the cleaning roller 250 sweeps back and forth on the surface of the board, which can effectively clean the dust particles on the board.

[0057] When the material passes through the spraying mechanism 300, the drive motor 330 drives the uniform liquid pipe 320 to reciprocate linearly via the turntable 332. Combined with the vertical conveying process of the material, this allows the polishing liquid sprayed from the nozzle 321 to be sprayed onto the surface of the material in a wave-like pattern, effectively expanding the spraying range to fully cover the material. Simultaneously, it ensures the polishing liquid is evenly distributed across the width of the material, improving polishing quality. During the process of the drive motor 330 driving the turntable 332 to rotate and reciprocate the uniform liquid pipe 320, the rotating rod 331 drives the rod sleeve 351 and the movable rod 350 to reciprocate up and down synchronously. This causes the screw sleeve 352 to drive the stirring blade 353 to rotate synchronously during the up-and-down reciprocating motion, thus fully and comprehensively stirring the polishing liquid in the storage tank 310. This ensures even distribution of abrasive particles in the polishing liquid, preventing sedimentation and agglomeration, and improving the polishing effect.

[0058] When passing through the coating mechanism 400, when the micro pump 312 inflates and deflates the elastic airbag 443 through the vent pipe 413 and the branch pipe 446, the elastic airbag 443 will expand and contract accordingly. At the same time, the deformation of the elastic airbag 443 will push the coating plate 420 to rotate around the rotating shaft 421 through the second vertical rod 440. The displacement sensor 414 monitors the height change of the sensing block 432 at the top of the first vertical rod 430, so as to provide real-time feedback on the change in the distance between the bottom of the coating plate 420 and the surface of the plate, thereby realizing the precise adjustment of the coating thickness of the polishing liquid by the coating plate 420.

[0059] When passing through the polishing mechanism 500, the polishing belt is tensioned between the drive shaft and the tensioning shaft, and the drive assembly 530 drives the drive shaft to rotate, so that the polishing belt can grind and polish the surface of the board.

[0060] When passing through the dust collection mechanism 600, the dust collection hood 610 is arranged on one side of the polishing belt assembly 520 and its bottom end is close to the polishing station. At the same time, the negative pressure fan 620 provides strong suction to collect and capture dust particles generated during the polishing process.

[0061] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the present invention should still fall within the scope of the present invention.

Claims

1. A smart polishing device for metal composite plates, comprising a conveyor table (100), characterized in that, The upper end of the conveyor table (100) is provided with a pretreatment mechanism (200), a spraying mechanism (300), a coating mechanism (400), a polishing mechanism (500), and a dust collection mechanism (600) in sequence along the conveying direction of the sheet material. The pretreatment mechanism (200) includes a positioning roller (210) and a pair of cleaning rollers (250). The positioning roller (210) abuts against the surface of the board and drives the cleaning rollers (250) to swing back and forth. The spraying mechanism (300) includes a liquid storage tank (310), a liquid distribution tube (320) is slidably installed at the front end of the liquid storage tank (310), a plurality of nozzles (321) are arranged at equal intervals at the bottom of the liquid distribution tube (320), a drive motor (330) is fixedly installed at the upper end of the liquid storage tank (310), a swing rod (340) is rotatably installed at the bottom of the liquid storage tank (310), and a movable rod (350) is provided inside the liquid storage tank (310). The drive motor (330) drives the liquid distribution tube (320) to reciprocate perpendicular to the conveying direction through the swing rod (340), and simultaneously drives the movable rod (350) to reciprocate up and down to stir the polishing liquid in the liquid storage tank (310). The coating mechanism (400) includes a base (410), a coating plate (420) is rotatably mounted below the base (410), and at least one set of vertical rods one (430) and two vertical rods two (440) are slidably mounted inside the base (410). The bottoms of vertical rods one (430) and two vertical rods two (440) are respectively slidably engaged with the two ends of the top of the coating plate (420). An elastic airbag (443) is provided at the top of vertical rod two (440). The pressure difference change of the elastic airbag (443) will drive the coating plate (420) to rotate through vertical rod two (440), and the change of the distance between the bottom of the coating plate (420) and the surface of the plate is monitored by the height change of vertical rod one (430). The polishing mechanism (500) is fixed on the upper end of the conveyor table (100) and is used to polish the surface of the plate. The dust collection mechanism (600) is fixed on the upper end of the conveyor table (100) and close to the polishing mechanism (500) for collecting dust generated during polishing.

2. The intelligent polishing device for metal composite plates according to claim 1, characterized in that, The positioning roller (210) is rotatably mounted on the conveyor table (100) at both ends and driven to rotate by the servo motor (220). The cleaning roller (250) is symmetrically arranged on both sides of the front end of the positioning roller (210). A transmission assembly (230) and a swing plate (240) are provided between the cleaning roller (250) and the positioning roller (210). One end of the swing plate (240) is fixedly connected to the cleaning roller (250) through a connecting rod (241). The other end of the swing plate (240) is rotatably mounted on the conveyor table (100). Fixed seats (243) are fixedly connected to both sides of the conveyor table (100). A tension spring (242) is provided between the swing plate (240) and the fixed seat (243).

3. The intelligent polishing device for metal composite plates according to claim 2, characterized in that, The transmission assembly (230) includes a driving bevel gear (231), a driven bevel gear (232), and a synchronizing gear (234). The driving bevel gear (231) is fixedly sleeved on both ends of the roller shaft of the positioning pressure roller (210). The driven bevel gear (232) is rotatably mounted on the conveyor table (100) and meshes with the driving bevel gear (231). A toothed gear (233) is fixedly sleeved on the axle of the driven bevel gear (232). The synchronizing gear (234) is fixedly sleeved on the swing plate (240) and meshes with the toothed gear (233).

4. The intelligent polishing device for metal composite plates according to claim 1, characterized in that, A bracket (311) extends from one side of the liquid storage tank (310). The uniform liquid pipe (320) is slidably installed through both ends of the bracket (311). The bottom side of the liquid storage tank (310) is connected to the uniform liquid pipe (320) via a flexible liquid guide (313). A micro pump (312) is installed on the flexible liquid guide (313). A rack (322) is installed along the axis on the side wall of the uniform liquid pipe (320). The swing rod (340) is connected to the bracket via a pivot (341). The frame (311) is rotated and engaged. One end of the swing rod (340) is provided with a sector tooth (342) that meshes with the rack (322). The other end of the swing rod (340) is provided with a sliding groove (343). The output end of the drive motor (330) is provided with a rotating rod (331). The bottom of the rotating rod (331) passes through the liquid storage tank (310) and is fixedly connected to a turntable (332). The bottom of the turntable (332) is fixedly provided with a sliding pin (333) that is adapted to slide with the sliding groove (343).

5. The intelligent polishing device for metal composite plates according to claim 4, characterized in that, The movable rod (350) has a sleeve (351) in the center for the rotating rod (331) to pass through. The rotating rod (331) has a closed curved groove (3311) on its surface. The sleeve (351) has a mating block (3511) that is adapted to slide with the closed curved groove (3311) fixed on its inner wall. The movable rod (350) has a screw sleeve (352) rotatably installed at both ends. The liquid storage tank (310) has a screw groove rod (314) fixed at both ends. The screw groove rod (314) and the screw sleeve (352) are threaded through and engaged. The screw sleeve (352) has stirring blades (353) evenly arranged on its outer wall.

6. The intelligent polishing device for metal composite plates according to claim 1, characterized in that, The base (410) is fixedly installed on the conveyor table (100) at both ends by support frame (411). An air pump (412) is fixedly installed at the upper end of the base (410). An air pipe (413) is connected to the output end of the air pump (412). A sensing block (432) is fixedly installed at the top of the first vertical rod (430). A displacement sensor (414) corresponding to the sensing block (432) is installed at the upper end of the base (410). The coating plate (420) is rotatably engaged with the base (410) through a rotating shaft (421). Sliding grooves (422) are provided at both ends of the top of the coating plate (420). A sliding sleeve (431) is fixedly installed at the bottom of the first vertical rod (430). A sliding sleeve (441) is fixedly installed at the bottom of the second vertical rod (440). Both ends of the sliding sleeve (431) and the sliding sleeve (441) are slidably engaged with the corresponding sliding grooves (422).

7. The intelligent polishing device for metal composite plates according to claim 6, characterized in that, The elastic airbag (443) is connected to the ventilation pipe (413) through the branch pipe (446). The top of the second vertical rod (440) is fixed with a movable block (442). The bottom of the elastic airbag (443) is fixed to the movable block (442). The top of the elastic airbag (443) is fixedly installed on the fixed block (444). The fixed block (444) is fixed in the base (410). The elastic airbag (443) is equipped with a pressure sensor (445).

8. The intelligent polishing device for metal composite plates according to claim 7, characterized in that, The distance between the pivot (421) and the first vertical rod (430) should be less than the distance between the pivot (421) and the second vertical rod (440).

9. The intelligent polishing device for metal composite plates according to claim 7, characterized in that, The base (410) is provided with a movable space for the sensor block (432) and the movable block (442) to move up and down. The base (410) is also provided with a movable space for the elastic airbag (443) to expand and contract.

10. The intelligent polishing device for metal composite plates according to claim 1, characterized in that, A mounting bracket (450) extends from one side of the base (410), and a laser thickness gauge (451) is arranged on the mounting bracket (450) along the width direction of the plate.

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