A household appliance plastic product surface wear resistance modification treatment device

Abstract

The application discloses a kind of household appliance plastic product surface wear-resistant modification processing device, specifically related to high molecular plastic product surface modification processing equipment technical field, including base, the first box is arranged in the position of the top of base near middle part, wear-resistant medium spraying mechanism is arranged in the inside of first box;The wear-resistant medium spraying mechanism includes first protective box, first servo motor, first threaded rod, first transmission belt, second threaded rod, connecting plate, spray head, transport pipe;By adopting double-threaded rod driving double-layer connecting plate with multiple groups of spray head to realize bidirectional composite spraying, upper connecting plate reciprocates along left-right direction, lower connecting plate reciprocates along front-back direction, two groups of spray head are synchronously cross-spraying, can completely cover household appliance plastic piece plane, side, concave-convex corner area, wear-resistant medium coating thickness is uniform;Spring-like hose is adapted to the stroke displacement of connecting plate reciprocation, ensures that coating conveying has no pipeline pulling and breaks material problem.

Description

Technical Field

[0001] This invention relates to the field of surface modification processing equipment for polymer plastic products, specifically a wear-resistant surface modification treatment device for household appliance plastic products. Background Technology

[0002] With the widespread use of plastic exterior parts in the home appliance industry, plastic shells suffer from defects such as low hardness, easy scratching, and high frictional wear. The industry commonly uses spray-applied wear-resistant coatings to improve surface wear resistance. However, existing wear-resistant surface modification treatment devices for home appliance plastic products still have the following technical defects in actual production: Firstly, traditional spraying mechanisms only perform unidirectional reciprocating spraying, resulting in uneven coating thickness on the front and back surfaces and corner areas of the plastic shell, leading to significant differences in the thickness of the wear-resistant layer and substandard wear resistance in some areas; secondly, the coating delivery pipeline lacks a linkage on / off structure, and the upper and lower double-layer spray heads cannot be separated. Firstly, continuous material supply and coating conveying can easily lead to paint mist accumulation in the warehouse, resulting in significant raw material waste. Secondly, conventional equipment only has a single spraying station, leaving the surface of the plastic parts smooth after injection molding with residual mold release agent, resulting in poor adhesion of the wear-resistant coating and easy detachment of the wear-resistant layer under stress, thus limiting the wear-resistant improvement effect after modification. Some equipment with added grinding stations lacks a matching dust removal air duct, causing plastic dust generated during grinding to adhere to the surface of the workpiece, resulting in particle pinhole defects in the coating after spraying and a low yield of finished products. Therefore, we propose a wear-resistant surface modification treatment device for household appliance plastic products to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a device for modifying the surface of plastic products for household appliances to improve wear resistance, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a wear-resistant modification treatment device for the surface of plastic products for household appliances, including a base, a first box being provided at the top of the base near the middle, and a wear-resistant medium spraying mechanism being provided on the inner side of the first box. The wear-resistant medium spraying mechanism includes a first protective box, a first servo motor, a first threaded rod, a first transmission belt, a second threaded rod, a connecting plate, a spray head, a transport pipe, and a spring-shaped hose; The first protective box is provided at the front and left side of the first box. The inner wall of the first protective box is fixedly connected to the first servo motor. The output end of the first servo motor is fixedly connected to the first threaded rod. The outer ring of the other end of the first threaded rod is driven by the first transmission belt. The inner side of the first transmission belt is driven by the second threaded rod, and the other end of the second threaded rod is threaded to the inner wall of the first box. The outer sides of the first threaded rod and the second threaded rod are threaded to the connecting plate. The bottom of the connecting plate is provided with several nozzles. The front, back and left side of the first protective box are provided with transport pipes. The top of the connecting plate is fixedly connected to the spring-shaped hose, and the other end of the spring-shaped hose is fixedly connected to one side of the transport pipe.

[0005] Preferably, a media-restricting transport mechanism is provided on the left side of the first container; The medium-restricted transport mechanism includes a connecting rod, a baffle, and a spring; A connecting rod is fixedly connected to the left side of the connecting plate mentioned above, and a baffle is fixedly connected to the other end of the connecting rod. A spring is fixedly connected to the left side of the baffle, and the inner wall of the transport pipe is slidably connected to the outer surface of the baffle.

[0006] Preferably, a second protective box is fixedly connected to both the left and right sides of the base. A second servo motor is fixedly connected to the inner wall of the second protective box on the right side. A plurality of transmission rods are rotatably connected to the inner wall of the base. The output end of the second servo motor is fixedly connected to the side near the front transmission rod. The plurality of transmission rods are connected by a second transmission belt. A plurality of guide rods are rotatably connected to the inner wall of the base.

[0007] Preferably, a plurality of support columns are fixedly connected to the lower surface of the base, and a reinforcing rod is fixedly connected to the opposite face of each of the support columns.

[0008] Preferably, a second housing is fixedly connected to the upper surface of the base near the front, and both the first and second housings are equipped with exhaust fans on their tops, and exhaust pipes are fixedly connected to the tops of both the first and second housings.

[0009] Preferably, a third protective box is fixedly connected to the left side of the second box, a third servo motor is fixedly connected to the inner wall of the third protective box, a grinding roller is fixedly connected to the output end of the third servo motor, and the other end of the grinding roller is rotatably connected to the inner wall of the second box.

[0010] Preferably, the inner sidewall of the second box is fixedly connected to a connecting pipe near the front and rear, and a connecting pipe is fixedly connected to the right side of the connecting pipe.

[0011] Preferably, a third housing is fixedly connected to the upper surface of the base near the rear, a heating tube is fixedly connected to the inner side wall of the third housing, and heat dissipation grooves are provided on both the left and right sides of the third housing.

[0012] Preferably, a protective plate is fixedly connected to the upper surface of the base, and the inner walls on both the left and right sides of the second housing have a certain curvature.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This wear-resistant surface modification treatment device for household appliance plastic products utilizes a double-threaded rod to drive a double-layer connecting plate with multiple sets of nozzles to achieve bidirectional composite spraying. The upper connecting plate reciprocates left and right, while the lower connecting plate reciprocates front and back. The two sets of nozzles spray synchronously and crosswise, completely covering the flat surfaces, sides, and concave and convex corners of the household appliance plastic parts, resulting in a uniform and consistent wear-resistant coating thickness. The spring-shaped flexible hose adapts to the reciprocating stroke displacement of the connecting plate, ensuring that the coating delivery is free from pipe pulling and material breakage issues, significantly improving the overall wear resistance of the plastic parts and avoiding defects such as easy scratches caused by excessively thin local coatings. The dual servo screw drive structure provides precise and controllable movement stroke, adapting to the spraying width adjustment of plastic workpieces of different sizes, significantly improving the equipment's versatility.

[0014] 2. This wear-resistant surface modification treatment device for household appliance plastic products uses a media-limiting transport mechanism to achieve the linkage of paint pipeline opening and closing. When the upper connecting plate moves to the left to the limit spraying position, it automatically pushes the connecting rod and baffle to compress the spring, automatically opening the transport pipe to supply material to the lower spray head. After the upper connecting plate resets, the spring rebounds to close the pipeline, realizing independent material supply to the upper and lower spray heads at different times. It can complete the paint delivery switching without additional electrically controlled valves, eliminating easily damaged electrical control components such as solenoid valves and induction switches. The equipment failure rate is greatly reduced under dust and solvent conditions, reducing the subsequent electrical maintenance costs.

[0015] 3. This wear-resistant surface modification treatment device for household appliance plastic products uses a mechanical linkage feeding structure to ensure that the coating is only delivered during the working hours of the corresponding nozzle. During idle periods, the pipeline is automatically closed, which greatly reduces the accumulation of paint mist caused by continuous overflow of wear-resistant coating and reduces the loss of coating raw materials. At the same time, the paint mist concentration in the sealed chamber is stable, and the top exhaust fan collects the exhaust gas simultaneously, reducing the amount of particulate defects caused by paint mist adhering to the chamber and the surface of the workpiece. The coating utilization rate is improved, and the yield of finished product spraying appearance is significantly improved, balancing production costs and product processing quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the device in this invention; Figure 2 This is a schematic diagram of the structure on the left side of the device in this invention; Figure 3 This is a cross-sectional view of the internal structure of the three-section housing of the device in this invention; Figure 4 This is an anatomical diagram of the lead screw drive assembly of the wear-resistant medium spraying mechanism in this invention; Figure 5 This is an assembly diagram of the spraying connection plate, spray head, medium pipeline and linkage mechanism in this invention; Figure 6 This is a schematic diagram of the internal heating pipe structure of the third drying and curing chamber in this invention; Figure 7 This is an assembly diagram of the exhaust ductwork of the second housing and the first housing in this invention; Figure 8 This is a disassembled diagram of the grinding roller and air blowing dust removal pipeline assembly in this invention; Figure 9 This is a schematic diagram of the independent structure of the baffle, connecting rod, and spring of the medium-limited transportation mechanism in this invention.

[0018] In the diagram: 1. Base; 11. First housing; 12. Second protective housing; 13. Second servo motor; 14. Transmission rod; 15. Second transmission belt; 16. Guide rod; 17. Support column; 18. Reinforcing rod; 2. Wear-resistant media spraying mechanism; 21. First protective box; 22. First servo motor; 23. First threaded rod; 24. First transmission belt; 25. Second threaded rod; 26. Connecting plate; 27. Spray head; 28. Transport pipe; 29. ​​Spring-shaped hose; 3. Medium-restricted transport mechanism; 31. Connecting rod; 32. Baffle; 33. Spring; 4. Second housing; 41. Exhaust fan; 42. Exhaust pipe; 43. Third protective housing; 44. Third servo motor; 45. Grinding roller; 46. Connecting pipe; 47. Connecting pipe; 5. Third chamber; 51. Heating element; 52. Heat dissipation groove; 6. Protective panels. Detailed Implementation

[0019] 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. Example 1

[0020] like Figure 1-9 As shown, the present invention provides a wear-resistant modification treatment device for the surface of plastic products for household appliances, including a base 1, a first box 11 is provided at the top of the base 1 near the middle, and a wear-resistant medium spraying mechanism 2 is provided on the inner side of the first box 11. The wear-resistant media spraying mechanism 2 includes a first protective box 21, a first servo motor 22, a first threaded rod 23, a first transmission belt 24, a second threaded rod 25, a connecting plate 26, a spray head 27, a transport pipe 28, and a spring-shaped hose 29; First protective boxes 21 are provided at the front and left side of the first housing 11. A first servo motor 22 is fixedly connected to the inner wall of the first protective box 21. A first threaded rod 23 is fixedly connected to the output end of the first servo motor 22. A first transmission belt 24 is driven to the outer ring of the other end of the first threaded rod 23. A second threaded rod 25 is driven to the inner side of the first transmission belt 24. The other end of the second threaded rod 25 is threaded to the inner wall of the first housing 11. A connecting plate 26 is threaded to the outer side of the first threaded rod 23 and the second threaded rod 25. Several nozzles 27 are provided at the bottom of the connecting plate 26. Transport pipes 28 are provided at the front, back and left side of the first protective box 21. A spring-shaped hose 29 is fixedly connected to the top of the connecting plate 26. The other end of the spring-shaped hose 29 is fixedly connected to one side of the transport pipe 28.

[0021] After roughening and dust removal, the workpiece is conveyed into the first housing 11. Inside the first protective housing 21, the first servo motor 22 drives the first threaded rod 23 to rotate. The first threaded rod 23 synchronously drives the second threaded rod 25 to rotate via the first transmission belt 24. The first threaded rod 23 and the second threaded rod 25 drive the upper connecting plate 26 to reciprocate in the left-right direction. Multiple sets of nozzles 27 at the bottom of the connecting plate 26 synchronously spray wear-resistant medium. The transport pipe 28 stores the wear-resistant coating, and the spring-shaped hose 29 adaptively extends and retracts with the movement of the upper connecting plate 26, continuously supplying coating to the upper nozzles 27. When the upper connecting plate 26 moves... When the first box 11 moves to its left limit position, the connecting rod 31 on the left side of the connecting plate 26 moves to the left in sync. The connecting rod 31 drives the baffle 32 to squeeze the spring 33 to slide to the left. The baffle 32 disengages from the sealing area inside the transport pipe 28, and the transport pipe 28 is opened. The wear-resistant medium is transported to the nozzle of the lower connecting plate 26 through the spring-shaped hose 29. The lower connecting plate 26 moves back and forth in the front and back direction to complete the supplementary spraying of the bottom and sides of the workpiece. After the upper connecting plate 26 returns to the right, the spring 33 rebounds and pushes the baffle 32 to block the branch of the transport pipe 28. The lower nozzle stops feeding material, completing a complete bidirectional cross-spraying operation.

[0022] Furthermore, a medium-limiting transport mechanism 3 is provided on the left side of the first container 11; The medium-limited transport mechanism 3 includes a connecting rod 31, a baffle 32, and a spring 33; A connecting rod 31 is fixedly connected to the left side of the upper connecting plate 26. A baffle 32 is fixedly connected to the other end of the connecting rod 31. A spring 33 is fixedly connected to the left side of the baffle 32, and the inner wall of the transport pipe 28 is slidably connected to the outer surface of the baffle 32.

[0023] Furthermore, a second protective box 12 is fixedly connected to both the left and right sides of the base 1. A second servo motor 13 is fixedly connected to the inner wall of the second protective box 12 on the right side. Several transmission rods 14 are rotatably connected to the inner wall of the base 1. The output end of the second servo motor 13 is fixedly connected to the side near the front transmission rod 14. Several transmission rods 14 are connected through a second transmission belt 15. Several guide rods 16 are rotatably connected to the inner wall of the base 1.

[0024] Furthermore, a number of support columns 17 are fixedly connected to the lower surface of the base 1, and a reinforcing rod 18 is fixedly connected to the opposite face of each of the support columns 17.

[0025] The second servo motor 13 is started, which drives the transmission rod 14 at the front end of the inner side of the base 1 to rotate. The transmission rod 14 drives all the transmission rods 14 in the base 1 to rotate in the same direction through the second transmission belt 15. Multiple guide rods 16 provide lateral limiting and guidance for the plastic products of the household appliances. The transmission rods 14 and the second transmission belt 15 work together to continuously transport the plastic workpieces forward along the production line. The support column 17 under the base 1 bears the weight of the whole machine, and the reinforcing rod 18 reinforces the support column 17 to improve the overall stability of the equipment.

[0026] Furthermore, a second housing 4 is fixedly connected to the upper surface of the base 1 near the front. Both the top of the first housing 11 and the top of the second housing 4 are equipped with exhaust fans 41, and both the top of the first housing 11 and the top of the second housing 4 are fixedly connected with exhaust pipes 42.

[0027] After sanding and spraying are completed, the exhaust fans 41 on the top of the first housing 11 and the second housing 4 are started to draw dust and airflow containing paint mist into the exhaust pipe 42 for unified discharge and treatment.

[0028] Furthermore, a third protective box 43 is fixedly connected to the left side of the second box 4, a third servo motor 44 is fixedly connected to the inner wall of the third protective box 43, a grinding roller 45 is fixedly connected to the output end of the third servo motor 44, and the other end of the grinding roller 45 is rotatably connected to the inner wall of the second box 4.

[0029] The plastic workpiece enters the second box 4 along the conveyor line. Inside the third protective box 43, the third servo motor 44 drives the grinding roller 45 to rotate continuously. The grinding roller 45 performs uniform micro-grinding on the surface of the workpiece, etching the micro-rough surface to improve the adhesion of the wear-resistant coating.

[0030] Furthermore, connecting pipes 46 are fixedly connected to the inner side wall of the second housing 4 near the front and rear positions, and connecting pipes 47 are fixedly connected to the right side of the connecting pipes 46.

[0031] The external fan duct is connected to the connecting pipe 47. The airflow is split through the connecting pipe 47 to multiple sets of connecting pipes 46 and blown out. The high-speed airflow blows the plastic dust generated by grinding towards the top of the second box 4. The arc-shaped structure on the left and right inner walls of the second box 4 gathers the dust airflow.

[0032] Furthermore, a third housing 5 is fixedly connected to the upper surface of the base 1 near the rear. A heating tube 51 is fixedly connected to the inner side wall of the third housing 5. Heat dissipation grooves 52 are provided on both the left and right sides of the third housing 5.

[0033] The coated plastic workpiece enters the third chamber 5 along the conveyor line. Multiple heating tubes 51 inside the third chamber 5 continuously provide constant temperature radiation heating to crosslink, dry, and cure the wet wear-resistant medium coating on the workpiece surface. The heat dissipation grooves 52 on both sides of the third chamber 5 balance the temperature inside the chamber to prevent heat accumulation from causing high-temperature deformation of the plastic parts of the household appliances. After drying, the wear-resistant coating forms a dense, high-hardness, wear-resistant protective layer.

[0034] Furthermore, a protective plate 6 is fixedly connected to the upper surface of the base 1, and the inner walls on both the left and right sides of the second box 4 are curved.

[0035] The protective plate 6 above the base 1 prevents floating debris from falling onto the conveyor line, thus avoiding contamination of the workpieces by impurities.

[0036] Working principle: Workpiece conveying and feeding: Start the second servo motor 13, which drives the transmission rod 14 at the front end of the inner side of the base 1 to rotate. The transmission rod 14 drives all the transmission rods 14 in the base 1 to rotate in the same direction through the second transmission belt 15. Multiple guide rods 16 provide lateral limiting and guidance for the plastic products of household appliances. The transmission rods 14 and the second transmission belt 15 work together to continuously convey the plastic workpieces forward along the assembly line. The support column 17 under the base 1 bears the weight of the whole machine. The reinforcing rod 18 reinforces the support column 17 to improve the overall stability of the equipment. The protective plate 6 above the base 1 prevents floating debris from falling into the conveyor line and avoids the workpieces from being contaminated by impurities.

[0037] The second chamber roughening and dust removal process: The plastic workpiece enters the second chamber 4 along the conveyor line. Inside the third protective chamber 43, the third servo motor 44 drives the grinding roller 45 to rotate continuously. The grinding roller 45 performs uniform micro-grinding on the surface of the workpiece, etching the micro-rough surface to improve the adhesion of the wear-resistant coating. The external fan duct is connected to the connecting pipe 47. The airflow is split through the connecting pipe 47 to multiple sets of connecting pipes 46 and blown out. The high-speed airflow blows the plastic dust generated by grinding towards the top of the second chamber 4. The arc-shaped structure on the left and right inner walls of the second chamber 4 gathers the dust airflow. The exhaust fan 41 at the top of the second chamber 4 is started, drawing the dust airflow into the exhaust pipe 42 for unified export and treatment, completing the roughening of the workpiece surface and dust removal.

[0038] The first box body double-layer bidirectional spraying process: After roughening and dust removal, the workpiece is transported into the first box body 11. Inside the first protective box 21, the first servo motor 22 drives the first threaded rod 23 to rotate. The first threaded rod 23 synchronously drives the second threaded rod 25 to rotate synchronously through the first transmission belt 24. The first threaded rod 23 and the second threaded rod 25 drive the upper connecting plate 26 to move back and forth in the left and right direction. Multiple sets of nozzles 27 at the bottom of the connecting plate 26 synchronously spray wear-resistant medium. The transport pipe 28 stores wear-resistant coating. The spring-shaped hose 29 adapts to the movement of the upper connecting plate 26 and extends and retracts, continuously supplying coating to the upper nozzles 27. When the upper connecting plate 26 moves to the left limit position of the first box body 11... When the connection is in place, the connecting rod 31 on the left side of the connecting plate 26 moves to the left simultaneously. The connecting rod 31 drives the baffle 32 to squeeze the spring 33 to slide to the left. The baffle 32 disengages from the sealing area inside the transport pipe 28, and the transport pipe 28 is opened. The wear-resistant medium is transported to the nozzle of the lower connecting plate 26 through the spring-shaped hose 29. The lower connecting plate 26 moves back and forth in the front and back direction to complete the supplementary spraying of the bottom and sides of the workpiece. After the upper connecting plate 26 returns to the right, the spring 33 rebounds and pushes the baffle 32 to block the branch of the transport pipe 28. The lower nozzle stops feeding material, completing a complete bidirectional cross-spraying operation. The exhaust fan 41 on the top of the first box 11 simultaneously extracts the paint mist generated by the spraying and discharges it through the exhaust pipe 42 for centralized purification.

[0039] The third chamber constant temperature drying and curing process: The plastic workpiece after spraying is conveyed into the third chamber 5. Multiple sets of heating tubes 51 in the third chamber 5 continuously radiate heat at a constant temperature to crosslink and dry the wet wear-resistant medium coating on the surface of the workpiece. The heat dissipation grooves 52 on both sides of the third chamber 5 balance the temperature inside the chamber to avoid heat accumulation and high temperature deformation of the plastic parts of the household appliances. After drying, the wear-resistant coating forms a dense, high-hardness wear-resistant protective layer.

[0040] Finished product unloading: The dried and cured modified plastic parts are continuously conveyed to the discharge end of the equipment by the transmission rod 14 and the second transmission belt 15 to complete the entire wear-resistant modification process.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for surface wear-resistant modification treatment of plastic products for household appliances, comprising a base (1), characterized in that: The base (1) has a first box (11) located near the middle of the top, and a wear-resistant medium spraying mechanism (2) is provided on the inner side of the first box (11). The wear-resistant medium spraying mechanism (2) includes a first protective box (21), a first servo motor (22), a first threaded rod (23), a first transmission belt (24), a second threaded rod (25), a connecting plate (26), a spray nozzle (27), a transport pipe (28), and a spring-shaped hose (29). A first protective box (21) is provided at the front and left side of the first box (11). A first servo motor (22) is fixedly connected to the inner wall of the first protective box (21). A first threaded rod (23) is fixedly connected to the output end of the first servo motor (22). A first transmission belt (24) is driven to the outer ring of the other end of the first threaded rod (23). A second threaded rod (25) is driven to the inner side of the first transmission belt (24). The other end of the second threaded rod (25) is threaded to the inner wall of the first box (11). A connecting plate (26) is threaded to the outer side of the first threaded rod (23) and the second threaded rod (25). A plurality of nozzles (27) are provided at the bottom of the connecting plate (26). A transport pipe (28) is provided at the front, back and left side of the first protective box (21). A spring-shaped hose (29) is fixedly connected to the top of the connecting plate (26). The other end of the spring-shaped hose (29) is fixedly connected to one side of the transport pipe (28).

2. The device for surface wear-resistant modification treatment of household appliance plastic products according to claim 1, characterized in that: A medium-limiting transport mechanism (3) is provided on the left side of the first box (11); The medium-restricted transport mechanism (3) includes a connecting rod (31), a baffle (32), and a spring (33); A connecting rod (31) is fixedly connected to the left side of the connecting plate (26) above. A baffle (32) is fixedly connected to the other end of the connecting rod (31). A spring (33) is fixedly connected to the left side of the baffle (32), and the inner wall of the transport pipe (28) is slidably connected to the outer surface of the baffle (32).

3. The device for surface wear-resistant modification treatment of household appliance plastic products according to claim 1, characterized in that: The base (1) is fixedly connected to the left and right sides of the second protective box (12). The inner wall of the second protective box (12) on the right side is fixedly connected to the second servo motor (13). The inner wall of the base (1) is rotatably connected to several transmission rods (14). The output end of the second servo motor (13) is fixedly connected to the side near the front transmission rod (14). Several transmission rods (14) are connected by a second transmission belt (15). The inner wall of the base (1) is rotatably connected to several guide rods (16).

4. The device for surface wear-resistant modification treatment of household appliance plastic products according to claim 1, characterized in that: The lower surface of the base (1) is fixedly connected with a number of support columns (17), and the opposite surfaces of the support columns (17) are fixedly connected with reinforcing rods (18).

5. The device for surface wear-resistant modification treatment of household appliance plastic products according to claim 1, characterized in that: The base (1) has a second box (4) fixedly connected to the upper surface near the front. The top of the first box (11) and the second box (4) are both equipped with exhaust fans (41), and the top of the first box (11) and the second box (4) are both fixedly connected with exhaust pipes (42).

6. The device for surface wear-resistant modification treatment of household appliance plastic products according to claim 5, characterized in that: A third protective box (43) is fixedly connected to the left side of the second box (4). A third servo motor (44) is fixedly connected to the inner wall of the third protective box (43). A grinding roller (45) is fixedly connected to the output end of the third servo motor (44), and the other end of the grinding roller (45) is rotatably connected to the inner wall of the second box (4).

7. The device for surface wear-resistant modification treatment of household appliance plastic products according to claim 5, characterized in that: The inner side wall of the second box (4) is fixedly connected with a connecting pipe (46) near the front and rear, and a connecting pipe (47) is fixedly connected to the right side of the connecting pipe (46).

8. The device for surface wear-resistant modification treatment of household appliance plastic products according to claim 1, characterized in that: A third housing (5) is fixedly connected to the upper surface of the base (1) near the rear. A heating tube (51) is fixedly connected to the inner side wall of the third housing (5). Heat dissipation grooves (52) are provided on both the left and right sides of the third housing (5).

9. The device for surface wear-resistant modification treatment of household appliance plastic products according to claim 5, characterized in that: The upper surface of the base (1) is fixedly connected to a protective plate (6), and the inner walls on the left and right sides of the second box (4) are both curved.

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