Multifunctional tpu sandpaper surface modification treatment equipment and method of use thereof

Abstract

The present application relates to sandpaper surface modification treatment equipment technical field, specifically to a kind of multifunctional TPU sandpaper surface modification treatment equipment and its using method, including machine body and magnetron sputtering coating machine body, the magnetron sputtering coating machine body is fixedly installed on machine body, the upper surface of the machine body is fixedly connected with No. 1 mount, second mount, dust removal shell and drying box body, the thickness monitoring component is fixedly installed in No. 1 mount.The thickness monitoring component of the present application is set, the thickness of TPU sandpaper to be treated can be monitored in real time, the tension self-adapting component is set, the conveying tension of TPU sandpaper can be automatically adjusted, the data feedback component is set, the real-time feedback of sandpaper thickness can be realized, the dust removal air pressure self-adapting adjusting component is set, dust removal air pressure can be self-adaptively adjusted, the drying time length adjusting component is set, drying time length can be self-adaptively adjusted according to TPU sandpaper thickness data.

Description

Technical Field

[0001] This invention relates to the technical field of sandpaper surface modification equipment, specifically to a multifunctional TPU sandpaper surface modification equipment and its usage method. Background Technology

[0002] TPU sandpaper, with its excellent flexibility, abrasion resistance, and corrosion resistance, is widely used in the sanding and processing of various materials such as metal, plastic, and wood. Its surface properties directly determine the sanding effect and service life. Surface modification is the core process in the production of TPU sandpaper. The core purpose is to form a uniform high-temperature alloy and rare metal protective layer on the surface of TPU sandpaper through magnetron sputtering coating process, using high-temperature alloys and rare metals as coating raw materials. This improves the surface hardness, abrasion resistance, corrosion resistance, and adhesion of TPU sandpaper, solving the technical defects of traditional TPU sandpaper such as easy surface wear and short service life, making it suitable for more demanding sanding conditions. At the same time, the rare metal protective layer provides long-term protection for the sandpaper body, extending its service life.

[0003] Existing TPU sandpaper surface modification equipment has several shortcomings. First, the equipment has limited functionality; processes such as thickness monitoring, tension adjustment, dust removal, and drying all require separate equipment, resulting in cumbersome process connections, low production efficiency, large footprint, and high energy consumption. Second, thickness monitoring and tension adjustment lack coordination, leading to uneven tension, wrinkles, or breakage during sandpaper transport, affecting the accuracy of surface modification. Furthermore, the dust removal air pressure and drying time cannot be adaptively adjusted in real time according to the sandpaper thickness and tension, easily resulting in incomplete dust removal, insufficient drying, or over-drying, which in turn affects the coating effect. Finally, the equipment has a low degree of automation, lacks effective data feedback and intelligent control mechanisms, requires frequent manual intervention, is labor-intensive, and results in poor processing consistency. Summary of the Invention

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides a multifunctional TPU sandpaper surface modification treatment device and its usage method, which can effectively solve the problems of existing technologies such as single function, poor coordination, low degree of automation, and inability to adaptively adjust working parameters in real time according to the thickness of the sandpaper substrate.

[0005] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a multifunctional TPU sandpaper surface modification treatment device, including a machine body and a magnetron sputtering coating machine body. The magnetron sputtering coating machine body is fixedly mounted on the machine body. A first mounting frame, a second mounting frame, a dust removal shell, and a drying chamber are fixedly connected to the upper surface of the machine body. A thickness monitoring component is fixedly installed inside the first mounting frame. A tension adaptive component and a data feedback component are fixedly installed between the first and second mounting frames. Multiple dust removal air pressure adaptive adjustment components are fixedly installed inside the dust removal shell. A drying time adjustment component is installed inside the drying chamber. A PLC controller is fixedly connected to the side wall of the first mounting frame. The thickness monitoring component includes a first conveying roller rotatably mounted on the inner wall of a first mounting frame. A first through hole is formed on the upper surface of the first mounting frame. A first hydraulic cylinder is fixedly connected inside the first through hole. A first piston plate is slidably connected inside the first hydraulic cylinder. A first connecting column is fixedly connected to the bottom surface of the first piston plate. A detection roller is fixedly connected to the bottom end of the first connecting column. Two springs are fixedly connected between the detection roller and the inner top surface of the first mounting frame.

[0006] According to the above-mentioned multifunctional TPU sandpaper surface modification treatment equipment, the tension adaptive component includes a first guide roller and two second guide rollers rotatably connected to the inner wall of the second mounting frame. The upper surface of the second mounting frame has a second through hole, and a second hydraulic cylinder is fixedly connected in the second through hole. A second piston plate is slidably connected in the second hydraulic cylinder. A second connecting column is fixedly connected to the bottom surface of the second piston plate. A tension roller is fixedly connected to the bottom end of the second connecting column. Two first guide rods are fixedly connected to the upper surface of the tension roller. Both first guide rods are slidably connected to the upper surface of the second mounting frame. A hydraulic pipe is fixedly connected to the side wall of the first hydraulic cylinder, and the other end of the hydraulic pipe is connected to the upper surface of the second hydraulic cylinder.

[0007] According to the above-mentioned multifunctional TPU sandpaper surface modification treatment equipment, the data feedback component includes an inverted plate fixedly connected to the upper surface of the second mounting frame, a variable resistance rod fixedly installed on the inner wall of the inverted plate, a conductive ring slidably sleeved on the variable resistance rod, a movable block fixedly connected to the circumference of the second connecting column, a connecting frame fixedly connected to the side wall of the movable block, the connecting frame slidably connected to the upper surface of the second mounting frame, and the side end of the connecting frame fixedly connected to the side wall of the conductive ring.

[0008] According to the above-mentioned multifunctional TPU sandpaper surface modification treatment equipment, the upper surface of the dust removal housing is fixedly connected to multiple dust removal pipes, and each of the multiple dust removal pipes is provided with an air supply pipe above it. The multiple dust removal pipes are all connected to the lower end face of the air supply pipe, and the upper end face of the air supply pipe is fixedly connected to an air inlet pipe. The bottom surface of the dust removal housing is fixedly connected to an air outlet pipe. The dust removal air pressure adaptive adjustment component includes a cross mounting seat fixedly connected to the inner wall of the bottom end of the dust removal pipe. The upper surface of the cross mounting seat is fixedly connected to a sleeve and a first electric push rod. The side wall of the sleeve is fixedly connected to multiple second guide rods. Each of the multiple second guide rods is slidably sleeved with a sliding sleeve. Each of the multiple sliding sleeves is fixedly connected to an arc plate at one end away from the other. The inner wall of the dust removal pipe is fixedly equipped with a rubber adjusting ring. Each of the multiple arc plates is fixedly connected to the inner wall of the rubber adjusting ring. The output end of the first electric push rod is hinged to multiple connecting rods. The bottom ends of the multiple connecting rods are respectively hinged to the upper end face of the multiple sliding sleeves.

[0009] According to the above-mentioned multifunctional TPU sandpaper surface modification treatment equipment, the drying time adjustment component includes a No. 3 guide roller rotatably connected to the inner wall of the drying chamber. A No. 1 sliding groove and a No. 2 sliding groove are opened on both side walls of the drying chamber. Two C-shaped moving frames are slidably connected between the two C-shaped moving frames. A No. 2 conveying roller and a No. 3 conveying roller are rotatably mounted on the opposite side of the two C-shaped moving frames. A No. 3 guide rod is fixedly connected to the side wall of the drying chamber. A sliding block is slidably sleeved on the No. 3 guide rod. Support rods are hinged to the upper and bottom surfaces of the sliding block. The side ends of the two support rods are respectively hinged to the side walls of the two C-shaped moving frames. A No. 2 electric push rod is fixedly connected to the side wall of the drying chamber via a bracket. The output end of the No. 2 electric push rod is fixedly connected to the side wall of the sliding block.

[0010] According to the above-mentioned multifunctional TPU sandpaper surface modification treatment equipment, the lower end face of the detection roller is in rolling contact with the upper end face of the first conveying roller, the two second guide rollers are flush, the tension roller is located between the two second guide rollers, the second and third conveying rollers are symmetrically arranged about the center of the third guide rod, the side wall of the sleeve is provided with multiple through slots, and the multiple connecting rods pass through the multiple through slots respectively.

[0011] According to the above-mentioned multifunctional TPU sandpaper surface modification treatment equipment, the variable resistance rod, conductive ring, first electric push rod and second electric push rod are all electrically connected to the PLC controller, and the circuit formed by the variable resistance rod, conductive ring, first electric push rod, second electric push rod and PLC controller is electrically connected to an external power supply.

[0012] The specific method for using the surface modification equipment to treat TPU sandpaper is as follows: S1. Feeding and Thickness Monitoring: The TPU sandpaper to be processed is passed between the No. 1 conveying roller and the detection roller, and the detection roller is squeezed to complete real-time thickness monitoring; S2. Tension Adaptive Adjustment: The thickness signal is transmitted through a hydraulic pipe, driving the tension roller to rise and fall, automatically adjusting the sandpaper conveying tension to ensure smooth conveying; S3. Data Feedback Control: The tension roller's lifting and lowering causes the conductive ring to slide, feeding back the tension signal to the PLC controller for real-time fine-tuning of operating parameters; S4. Dust Removal: The PLC controller regulates the dust removal components, adjusts the inner diameter of the dust removal pipe to match the air pressure, removes dust from the sandpaper surface, and the exhaust gas is discharged through the outlet pipe; S5. Drying process: The sandpaper enters the drying chamber, and the surface is dried by adjusting the length of the conveying path to match the drying time. S6. Coating Modification: After drying, the sandpaper is fed into the magnetron sputtering coating machine body to complete the surface coating modification and collect the finished product.

[0013] The technical solution provided by this invention has the following advantages compared with the known prior art: 1. This invention, through the set thickness monitoring component, can monitor the thickness of the TPU sandpaper to be processed in real time, and convert the sandpaper thickness signal into hydraulic and electrical signals, providing accurate data reference for subsequent tension adaptive adjustment. This effectively avoids problems such as uneven coating of modified layer and insufficient processing accuracy caused by thickness deviation, laying a precise and stable foundation for the entire surface modification process and further improving the stability of modification quality.

[0014] 2. The present invention, through the tension adaptive component, can receive the hydraulic signal transmitted by the thickness monitoring component. Specifically, according to the magnitude of the sandpaper thickness signal, it drives the second piston plate and the second connecting column to drive the tension roller to rise and fall, automatically adjusting the conveying tension of the TPU sandpaper. When the thickness is thicker, the tension is increased, and when the thickness is thinner, the tension is decreased, ensuring that there are no wrinkles or breaks during the sandpaper conveying process and maintaining stable conveying.

[0015] 3. The present invention, through the data feedback component, can convert the lifting and lowering displacement signal of the tension roller into an electrical signal and feed it back to the PLC controller, thereby realizing real-time feedback of sandpaper thickness. This provides data support for the PLC controller to regulate other components, ensuring coordinated operation of all components and improving the automation control level of the equipment.

[0016] 4. The present invention, through the setting of the dust removal air pressure adaptive adjustment component, can adaptively adjust the dust removal air pressure according to the TPU sandpaper thickness data fed back by the thickness monitoring component under the control of the PLC controller. Specifically, when the sandpaper is thick, the dust removal air pressure is appropriately increased to ensure that deep dust is thoroughly removed, and when the thickness is thin, the dust removal air pressure is appropriately decreased to avoid excessive air pressure damaging the sandpaper body, thereby accurately removing dust and impurities from the surface of the TPU sandpaper.

[0017] 5. The present invention, through the setting of the drying time adjustment component, can adaptively adjust the length of the conveying path of TPU sandpaper in the drying chamber according to the TPU sandpaper thickness data fed back by the thickness monitoring component, thereby adjusting the drying time. Specifically, when the sandpaper is thicker, the conveying path is increased and the drying time is extended to ensure that the inside of the sandpaper is thoroughly dried. When the thickness is thinner, the conveying path is shortened and the drying time is reduced to avoid over-drying. Thus, the drying time is precisely adjusted to ensure that the surface of the sandpaper is dried evenly. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural cross-sectional diagram of the present invention; Figure 3 This is a three-dimensional structural schematic diagram from another perspective of the present invention; Figure 4 This is a three-dimensional structural schematic diagram of the present invention from another perspective; Figure 5 for Figure 1 Enlarged view of point A in the middle; Figure 6 for Figure 2 Enlarged view of point B in the middle; Figure 7 for Figure 2 Enlarged view of point C in the middle; Figure 8 for Figure 2 Enlarged view at point D; Figure 9 This is a flowchart illustrating the method of using the present invention.

[0020] Reference numerals: 1. Machine body; 11. Magnetron sputtering coating machine body; 12. Mounting frame 1; 13. Mounting frame 2; 14. Dust collector housing; 15. Drying chamber; 16. PLC controller; 17. Dust collector pipe; 18. Air supply pipe; 19. Air inlet pipe; 110. Air outlet pipe; 2. Thickness monitoring component; 21. Conveyor roller 1; 22. Through hole 1; 23. Hydraulic cylinder 1; 24. Piston plate 1; 25. Connecting column 1; 26. Detection roller; 27. Spring; 3. Tension adaptive component; 31. Guide roller 1; 32. Guide roller 2; 33. Through hole 2; 34. Hydraulic cylinder 2; 35. Piston plate 2; 36. Connecting column 2; 37. Tension roller; 38. 39. Hydraulic pipe; 4. Data feedback component; 41. C-shaped plate; 42. Variable resistance rod; 43. Conductive ring; 44. Moving block; 45. Connecting frame; 5. Dust removal air pressure adaptive adjustment component; 51. Cross mounting base; 52. Sleeve; 53. Electric push rod No. 1; 54. Guide rod No. 2; 55. Sliding sleeve; 56. Arc plate; 57. Rubber adjusting ring; 58. Connecting rod; 59. Through groove; 6. Drying time adjustment component; 61. Guide roller No. 3; 62. Slide chute No. 1; 63. Slide chute No. 2; 64. C-shaped moving frame; 65. Conveyor roller No. 2; 66. Conveyor roller No. 3; 67. Guide rod No. 3; 68. Sliding block; 69. Support rod; 610. Electric push rod No. 2. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to embodiments.

[0023] Example: Refer to Figures 1 to 9 A multifunctional TPU sandpaper surface modification treatment device includes a machine body 1 and a magnetron sputtering coating machine body 11. The magnetron sputtering coating machine body 11 is fixedly mounted on the machine body 1. A first mounting frame 12, a second mounting frame 13, a dust removal shell 14, and a drying chamber 15 are fixedly connected to the upper surface of the machine body 1. A thickness monitoring component 2 is fixedly installed inside the first mounting frame 12. A tension adaptive component 3 and a data feedback component 4 are fixedly installed between the first mounting frame 12 and the second mounting frame 13. Multiple dust removal air pressure adaptive adjustment components 5 are fixedly installed inside the dust removal shell 14. A drying time adjustment component 6 is installed inside the drying chamber 15. A PLC controller 16 is fixedly connected to the side wall of the first mounting frame 12. The thickness monitoring component 2 includes a first conveying roller 21 rotatably mounted on the inner wall of a first mounting frame 12. A first through hole 22 is opened on the upper surface of the first mounting frame 12. A first hydraulic cylinder 23 is fixedly connected in the first through hole 22. A first piston plate 24 is slidably connected in the first hydraulic cylinder 23. A first connecting post 25 is fixedly connected to the bottom surface of the first piston plate 24. A detection roller 26 is fixedly connected to the bottom end of the first connecting post 25. Two springs 27 are fixedly connected between the detection roller 26 and the inner top surface of the first mounting frame 12. The lower end face of the detection roller 26 is in rolling contact with the upper end face of the first conveying roller 21. The tension adaptive assembly 3 includes a first guide roller 31 and two second guide rollers 32 rotatably connected to the inner wall of the second mounting frame 13. The upper surface of the second mounting frame 13 has a second through hole 33. A second hydraulic cylinder 34 is fixedly connected inside the second through hole 33. A second piston plate 35 is slidably connected inside the second hydraulic cylinder 34. A second connecting column 36 is fixedly connected to the bottom surface of the second piston plate 35. A tension roller 37 is fixedly connected to the bottom end of the second connecting column 36. Two first guide rods 38 are fixedly connected to the upper surface of the tension roller 37. Both first guide rods 38 are slidably connected to the upper surface of the second mounting frame 13. A hydraulic pipe 39 is fixedly connected to the side wall of the first hydraulic cylinder 23. The other end of the hydraulic pipe 39 is connected to the upper surface of the second hydraulic cylinder 34. The two second guide rollers 32 are flush with each other. The tension roller 37 is located between the two second guide rollers 32. The data feedback component 4 includes an inverted plate 41 fixedly connected to the upper surface of the second mounting bracket 13. A variable resistance rod 42 is fixedly installed on the inner wall of the inverted plate 41. A conductive ring 43 is slidably sleeved on the variable resistance rod 42. A moving block 44 is fixedly connected to the circumference of the second connecting column 36. A connecting frame 45 is fixedly connected to the side wall of the moving block 44. The connecting frame 45 is slidably connected to the upper surface of the second mounting bracket 13. The side end of the connecting frame 45 is fixedly connected to the side wall of the conductive ring 43. Multiple dust collection pipes 17 are fixedly connected to the upper surface of the dust collection housing 14. Each of the multiple dust collection pipes 17 has an air supply pipe 18 above it. The multiple dust collection pipes 17 are connected to the lower end face of the air supply pipe 18. An air inlet pipe 19 is fixedly connected to the upper end face of the air supply pipe 18. An air outlet pipe 110 is fixedly connected to the bottom surface of the dust collection housing 14. The dust collection air pressure adaptive adjustment component 5 includes a cross-shaped mounting base 51 fixedly connected to the inner wall of the bottom end of the dust collection pipe 17. A sleeve 52 and a first electric push rod 53 are fixedly connected to the upper surface of the cross-shaped mounting base 51. A [missing information - likely a component or element] is fixedly connected to the side wall of the sleeve 52. Multiple guide rods 54 are provided, each with a sliding sleeve 55 slidably fitted onto it. Each sliding sleeve 55 is fixedly connected to an arc-shaped plate 56 at one end away from the other. A rubber adjusting ring 57 is fixedly installed on the inner wall of the dust removal pipe 17. The multiple arc-shaped plates 56 are fixedly connected to the inner wall of the rubber adjusting ring 57. Multiple connecting rods 58 are hinged to the output end of the electric push rod 53. The bottom ends of the multiple connecting rods 58 are respectively hinged to the upper end faces of the multiple sliding sleeves 55. Multiple through slots 59 are provided on the side wall of the sleeve 52. The multiple connecting rods 58 pass through the multiple through slots 59 respectively. The drying time adjustment component 6 includes a third guide roller 61 rotatably connected to the inner wall of the drying chamber 15. A first slide groove 62 and a second slide groove 63 are provided on both side walls of the drying chamber 15. Two U-shaped moving frames 64 are slidably connected between the first slide groove 62 and the second slide groove 63. A second conveyor roller 65 and a third conveyor roller 66 are rotatably mounted on opposite sides of the two U-shaped moving frames 64. A third guide rod 67 is fixedly connected to the side wall of the drying chamber 15. A sliding block 68 is slidably sleeved on the third guide rod 67. Support rods 69 are hinged to the upper and bottom surfaces of the sliding block 68. The side ends of the two support rods 69 are... The two C-shaped moving frames 64 are hinged together. The side wall of the drying chamber 15 is fixedly connected to the second electric push rod 610 by a bracket. The output end of the second electric push rod 610 is fixedly connected to the side wall of the sliding block 68. The second conveying roller 65 and the third conveying roller 66 are symmetrically arranged about the center of the third guide rod 67. The variable resistance rod 42, the conductive ring 43, the first electric push rod 53 and the second electric push rod 610 are all electrically connected to the PLC controller 16. The circuit formed by the variable resistance rod 42, the conductive ring 43, the first electric push rod 53, the second electric push rod 610 and the PLC controller 16 is electrically connected to an external power supply.

[0024] The working principle of this invention is as follows: During use, the TPU sandpaper substrate is conveyed under the control of the winding device. The TPU sandpaper enters the first mounting frame 12 and passes between the first conveying roller 21 and the detection roller 26 of the thickness monitoring component 2. Due to the pre-tensioning force of the two springs 27, the detection roller 26 is always in rolling contact with the first conveying roller 21. When the sandpaper thickness changes, it directly squeezes the detection roller 26, causing vertical displacement, which triggers the conversion and transmission of the thickness signal. When the sandpaper thickness increases, the squeezing force of the sandpaper on the detection roller 26 increases, pushing the detection roller 26 upward, which drives the first connecting column 25 to rise synchronously, thereby pushing the first liquid... The piston plate 24 inside the pressure cylinder 23 slides upward to seal, the spring 27 is further compressed, the hydraulic oil inside the hydraulic cylinder 23 is squeezed, and the hydraulic pressure increases. When the thickness of the sandpaper decreases, the squeezing force of the sandpaper on the detection roller 26 decreases, the preload of the spring 27 is released, and the detection roller 26 is pulled downward, which drives the connecting column 25 and the piston plate 24 to descend synchronously. The hydraulic volume inside the hydraulic cylinder 23 expands and the hydraulic pressure decreases. During this process, the thickness monitoring component 2 converts the mechanical thickness signal of the sandpaper into the hydraulic pressure signal inside the hydraulic cylinder 23, providing direct power and signal support for subsequent tension adaptive adjustment. The hydraulic pressure signal converted by the thickness monitoring component 2 is transmitted to the second hydraulic cylinder 34 of the tension adaptive component 3 through the hydraulic pipe 39, realizing the linkage adjustment of tension and thickness. The core logic is to use hydraulic pressure to drive the tension roller 37 to rise and fall, changing the conveying tension of the sandpaper to ensure that the tension matches the sandpaper thickness and avoid sandpaper wrinkles or breakage. When the sandpaper thickness increases and the hydraulic pressure in the first hydraulic cylinder 23 increases, hydraulic oil flows into the second hydraulic cylinder 34 through the hydraulic pipe 39, pushing the second piston plate 35 to slide downward, causing the second connecting column 36 and the tension roller 37 to descend synchronously. The tension roller 37 is located between two parallel guide rollers 32. When the tension roller 37 descends, it increases the pressure on the TPU sandpaper, thereby increasing the conveying tension of the sandpaper and adapting to the conveying needs of thicker sandpaper. Similarly, when the thickness of the sandpaper decreases and the hydraulic pressure in the first hydraulic cylinder 23 decreases, the hydraulic pressure in the second hydraulic cylinder 34 decreases simultaneously. The tension roller 37 will slide upward with the second piston plate 35, causing the tension roller 37 to rise. After the tension roller 37 rises, the pressure on the sandpaper decreases, thereby reducing the conveying tension of the sandpaper and adapting to the conveying needs of thinner sandpaper. When the tension roller 37 rises and falls with the change in thickness, it will synchronously link with the data feedback component 4 to convert the tension displacement signal (indirectly reflecting the sandpaper thickness signal) into an electrical signal and feed it back to the PLC controller 16. The PLC controller 16 will further fine-tune the core working parameters such as dust removal air pressure and drying time based on the signal feedback to achieve precise matching of thickness, tension and various processing parameters. When the tension roller 37 rises and falls, it drives the circumferentially fixed moving block 44 of the second connecting column 36 to rise and fall synchronously. The moving block 44 drives the connecting frame 45 to slide along the second mounting frame 13, which in turn drives the conductive ring 43 to slide along the variable resistance rod 42 on the inner wall of the C-shaped plate 41. When the conductive ring 43 slides, it will change its contact position with the variable resistance rod 42, thereby changing the resistance value of the circuit connected to it and converting the displacement signal of the tension roller 37 (indirectly corresponding to the sandpaper thickness signal) into an electrical signal. When the sandpaper is thick and under high tension, more dust tends to adhere to its surface. Thicker sandpaper also exhibits greater stability during transport. Therefore, adjusting the extension of the first electric push rod 53, via the connecting rod 58, causes the sliding sleeve 55 to slide along the second guide rod 54 towards the sleeve 52, pulling the arc plate 56 to retract. This causes the rubber adjusting ring 57 to deform inward, reducing the inner diameter of the dust removal pipe 17, thereby increasing the dust removal air pressure and enhancing the airflow impact force. This ensures thorough removal of dust and impurities from the surface of thicker sandpaper, preventing dust residue from affecting the coating effect. Conversely, when the sandpaper thickness is small and the tension is low, the surface... Since there is less dust adhering to the surface and the stability of thinner sandpaper is weaker during conveying, the first electric push rod 53 is retracted, which drives the sliding sleeve 55 to slide away from the sleeve 52 along the second guide rod 54 through the connecting rod 58. This pushes the arc plate 56 to open, squeezes the rubber adjusting ring 57 to deform outward, increases the inner diameter of the dust removal pipe 17, and thus reduces the dust removal air pressure. This avoids the impact of high-pressure airflow causing the thinner sandpaper to shift or wrinkle, while ensuring the removal of surface dust. It balances the dust removal effect and the conveying stability, and completes the adaptive adjustment of the dust removal air pressure according to the thickness of the substrate. The core of adjusting the drying time is to change the length of the conveying path of the sandpaper in the drying chamber 15 by adjusting the drying time adjustment component 6, thereby adjusting the drying time to ensure that sandpaper of different thicknesses can be fully dried. When the sandpaper is thicker, it requires a longer drying time to ensure that the surface is dry, so as to avoid defects such as coating peeling and bubbles during subsequent coating. Therefore, the PLC controller 16 controls the extension of the second electric push rod 610, driving the sliding block 68 to slide along the third guide rod 67 towards the drying chamber 15. The sliding block 68 drives the two C-shaped moving frames 64 to move away from each other along the first slide groove 62 and the second slide groove 63 through the two support rods 69, increasing the distance between the second conveying roller 65 and the third conveying roller 66, thereby increasing the conveying path. The length of the drying time is extended to ensure thorough drying. Similarly, when the sandpaper thickness is small, the drying time required for thinner sandpaper is shorter. Over-drying will cause the sandpaper to deform and become brittle, affecting its flexibility and service life. Therefore, the PLC controller 16 controls the retraction of the second electric push rod 610, driving the sliding block 68 to slide along the third guide rod 67 away from the drying chamber 15. The sliding block 68 drives the two C-shaped moving frames 64 to move closer together through the support rod 69, reducing the distance between the second conveying roller 65 and the third conveying roller 66. After the distance is reduced, the conveying path length of the sandpaper in the drying chamber 15 is shortened, and the drying time is shortened. This ensures that the sandpaper is fully dried while avoiding damage caused by over-drying, thus balancing the drying effect and the performance of the sandpaper. After dust removal and drying, the TPU sandpaper is continuously fed into the magnetron sputtering coating machine body 11. The magnetron sputtering coating machine body 11 uses high-temperature alloys and rare metals as coating materials. Through magnetron sputtering process, a uniform and dense bimetallic modified layer is deposited on the surface of the TPU sandpaper. The titanium transition layer improves the coating adhesion, and the surface alloy layer improves the sandpaper's wear resistance, corrosion resistance and antistatic properties, thereby extending the service life of the sandpaper and completing the modification operation.

[0025] A method for using a multifunctional TPU sandpaper surface modification treatment device is as follows: S1. Feeding and Thickness Monitoring: The TPU sandpaper to be processed is passed between the No. 1 conveying roller 21 and the detection roller 26, and the detection roller 26 is squeezed to complete the real-time thickness monitoring; S2. Tension Adaptive Adjustment: The thickness signal is transmitted through the hydraulic pipe 39, driving the tension roller 37 to rise and fall, automatically adjusting the sandpaper conveying tension to ensure smooth conveying; S3, Data Feedback Control: The tension roller 37 rises and falls, causing the conductive ring 43 to slide, feeding back the tension signal to the PLC controller 16 for real-time fine-tuning of operating parameters; S4. Dust removal: The PLC controller 16 controls the dust removal components, adjusts the inner diameter of the dust removal pipe 17 to match the air pressure, removes dust from the sandpaper surface, and the exhaust gas is discharged through the exhaust pipe 110. S5. Drying process: The sandpaper enters the drying chamber 15, and the surface is dried by adjusting the length of the conveying path to match the drying time. S6. Coating Modification: After drying, the sandpaper is fed into the magnetron sputtering coating machine body 11 to complete the surface coating modification and collect the finished product.

[0026] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of the present invention.

Claims

1. A multifunctional TPU sandpaper surface modification treatment device, characterized in that, include: The machine body (1) and the magnetron sputtering coating machine body (11) are fixedly mounted on the machine body (1). The upper surface of the machine body (1) is fixedly connected to the first mounting bracket (12), the second mounting bracket (13), the dust removal shell (14) and the drying chamber (15). The first mounting bracket (12) is fixedly equipped with a thickness monitoring component (2). The first mounting bracket (12) and the second mounting bracket (13) are fixedly equipped with a tension adaptive component (3) and a data feedback component (4). The dust removal shell (14) is fixedly equipped with multiple dust removal air pressure adaptive adjustment components (5). The drying chamber (15) is equipped with a drying time adjustment component (6). The side wall of the first mounting bracket (12) is fixedly connected to a PLC controller (16). The thickness monitoring component (2) includes a first conveying roller (21) rotatably mounted on the inner wall of a first mounting frame (12). A first through hole (22) is opened on the upper surface of the first mounting frame (12). A first hydraulic cylinder (23) is fixedly connected in the first through hole (22). A first piston plate (24) is slidably connected in the first hydraulic cylinder (23). A first connecting column (25) is fixedly connected to the bottom surface of the first piston plate (24). A detection roller (26) is fixedly connected to the bottom end of the first connecting column (25). Two springs (27) are fixedly connected between the detection roller (26) and the inner top surface of the first mounting frame (12).

2. The multifunctional TPU sandpaper surface modification treatment equipment according to claim 1, characterized in that, The tension adaptive component (3) includes a first guide roller (31) and two second guide rollers (32) rotatably connected to the inner wall of the second mounting bracket (13). The upper surface of the second mounting bracket (13) is provided with a second through hole (33). A second hydraulic cylinder (34) is fixedly connected in the second through hole (33). A second piston plate (35) is slidably connected in the second hydraulic cylinder (34). A second connecting column (36) is fixedly connected to the bottom surface of the second piston plate (35). A tension roller (37) is fixedly connected to the bottom end of the second connecting column (36). Two first guide rods (38) are fixedly connected to the upper surface of the tension roller (37). Both first guide rods (38) are slidably connected through the upper surface of the second mounting bracket (13). A hydraulic pipe (39) is fixedly connected to the side wall of the first hydraulic cylinder (23). The other end of the hydraulic pipe (39) is connected to the upper surface of the second hydraulic cylinder (34).

3. The multifunctional TPU sandpaper surface modification treatment equipment according to claim 2, characterized in that, The data feedback component (4) includes an inverted plate (41) fixedly connected to the upper surface of the second mounting bracket (13). A variable resistance rod (42) is fixedly installed on the inner wall of the inverted plate (41). A conductive ring (43) is slidably sleeved on the variable resistance rod (42). A moving block (44) is fixedly connected to the circumference of the second connecting column (36). A connecting frame (45) is fixedly connected to the side wall of the moving block (44). The connecting frame (45) is slidably connected to the upper surface of the second mounting bracket (13). The side end of the connecting frame (45) is fixedly connected to the side wall of the conductive ring (43).

4. The multifunctional TPU sandpaper surface modification treatment equipment according to claim 3, characterized in that, The upper surface of the dust collector housing (14) is fixedly connected to multiple dust collector pipes (17), and each of the multiple dust collector pipes (17) is provided with an air supply pipe (18). The multiple dust collector pipes (17) are all connected to the lower end face of the air supply pipe (18). The upper end face of the air supply pipe (18) is fixedly connected to an air inlet pipe (19). The bottom surface of the dust collector housing (14) is fixedly connected to an air outlet pipe (110). The dust collector air pressure adaptive adjustment component (5) includes a cross mounting base (51) fixedly connected to the inner wall of the bottom end of the dust collector pipe (17). The upper surface of the cross mounting base (51) is fixedly connected to a sleeve (52) and a No. 1 electric motor. The push rod (53) has multiple second guide rods (54) fixedly connected to the side wall of the sleeve (52). Each of the multiple second guide rods (54) has a sliding sleeve (55) slidably sleeved on it. Each of the multiple sliding sleeves (55) has an arc plate (56) fixedly connected to one end away from the other. The inner wall of the dust removal pipe (17) is fixedly equipped with a rubber adjusting ring (57). Each of the multiple arc plates (56) is fixedly connected to the inner wall of the rubber adjusting ring (57). The output end of the first electric push rod (53) is hinged with multiple connecting rods (58). The bottom ends of the multiple connecting rods (58) are respectively hinged to the upper end face of the multiple sliding sleeves (55).

5. The multifunctional TPU sandpaper surface modification treatment equipment according to claim 4, characterized in that, The drying time adjustment component (6) includes a third guide roller (61) rotatably connected to the inner wall of the drying chamber (15). A first slide groove (62) and a second slide groove (63) are provided on both side walls of the drying chamber (15). Two U-shaped moving frames (64) are slidably connected between the first slide groove (62) and the second slide groove (63). A second conveying roller (65) and a third conveying roller (66) are rotatably mounted on the opposite side of the two U-shaped moving frames (64). The drying chamber (15)... The side wall of the drying box (15) is fixedly connected to a third guide rod (67), and a sliding block (68) is slidably sleeved on the third guide rod (67). The upper surface and bottom surface of the sliding block (68) are hinged with support rods (69). The side ends of the two support rods (69) are respectively hinged to the side walls of the two C-shaped moving frames (64). The side wall of the drying box (15) is fixedly connected to a second electric push rod (610) through a bracket. The output end of the second electric push rod (610) is fixedly connected to the side wall of the sliding block (68).

6. The multifunctional TPU sandpaper surface modification treatment equipment according to claim 5, characterized in that, The lower end face of the detection roller (26) rolls in contact with the upper end face of the first conveying roller (21). The two second guide rollers (32) are flush. The tension roller (37) is located between the two second guide rollers (32). The second conveying roller (65) and the third conveying roller (66) are symmetrically arranged about the center of the third guide rod (67). The side wall of the sleeve (52) is provided with multiple through slots (59). Multiple connecting rods (58) pass through multiple through slots (59) respectively.

7. The multifunctional TPU sandpaper surface modification treatment equipment according to claim 5, characterized in that, The variable resistance rod (42), conductive coil (43), first electric push rod (53) and second electric push rod (610) are all electrically connected to the PLC controller (16), and the circuit formed by the variable resistance rod (42), conductive coil (43), first electric push rod (53), second electric push rod (610) and PLC controller (16) is electrically connected to an external power supply.

8. A method of using the surface modification treatment equipment according to any one of claims 1-7 to treat TPU sandpaper, characterized in that, The specific method is as follows: S1. Feeding and Thickness Monitoring: The TPU sandpaper to be processed is passed between the No. 1 conveying roller (21) and the detection roller (26), and the detection roller (26) is squeezed to complete the real-time thickness monitoring; S2, Tension Adaptive Adjustment: The thickness signal is transmitted through the hydraulic pipe (39), driving the tension roller (37) to rise and fall, automatically adjusting the sandpaper conveying tension to ensure smooth conveying; S3, Data Feedback Control: The tension roller (37) rises and falls, causing the conductive ring (43) to slide, feeding back the tension signal to the PLC controller (16) for real-time fine-tuning of operating parameters; S4. Dust removal: The PLC controller (16) controls the dust removal components, adjusts the inner diameter of the dust removal pipe (17) to match the air pressure, removes dust from the surface of the sandpaper, and discharges the exhaust gas through the exhaust pipe (110); S5. Drying treatment: The sandpaper enters the drying chamber (15), and the surface is dried by adjusting the length of the conveying path to match the drying time. S6. Coating modification: After drying, the sandpaper is fed into the magnetron sputtering coating machine body (11) to complete the surface coating modification and collect the finished product.

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