Processing method of art product coated with environment-friendly water-based paint

Abstract

The invention provides a processing method of an artistic product coated with environment-friendly water-based paint, belongs to the technical field of engraving, and solves the problems that during existing foam sculpture, due to insufficient strength in the engraving process, particles fall off or edges crack easily during engraving of a fine structure, and 0.1-10 [mu] m foam particles are generated during engraving, so that the sculpture effect is poor. And the respiratory system is harmed by long-term inhalation. A processing method of an artistic product coated with environment-friendly water-based paint comprises the following steps: in a clean working environment without accumulated dust, fly ash and disordered articles, cleaning floating dust on the surface of a sculpture PU foam material through an electrostatic dust removal duster, wiping the surface of the sculpture PU foam material along a W-shaped path through micro-wet microfiber cloth (twisted until no water drops), and drying the sculpture PU foam material to obtain the artistic product coated with the environment-friendly water-based paint. And circle drawing and mark leaving are avoided. The device has the advantages that the foam base material is coated with paint before carving, the structural strength is improved, the whole carving process is automatically achieved, and foam waste generated by carving is recycled.

Description

Technical Field

[0001] This invention belongs to the field of carving technology and relates to a method for processing art products, particularly a method for processing art products coated with environmentally friendly water-based paint. Background Technology

[0002] Foam sculpture is a new type of composite material with strong plasticity. It is not only inexpensive but also highly malleable. With the rapid economic development, foam sculpture is widely used in decorative styling. Its quick styling process allows it to create vivid and lively images, whether cartoonish or realistic, in a short time. At a reasonable price, it can create a series of colorful scenes.

[0003] However, existing foam sculptures are prone to particle shedding or edge cracking during the carving process due to insufficient strength. Furthermore, the carving process generates 0.1-10μm foam particles, which can harm the respiratory system if inhaled for a long time. Summary of the Invention

[0004] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a processing method for art products coated with environmentally friendly water-based paint. The technical problem this invention aims to solve is: how to apply paint to a foam substrate before carving to improve structural strength, automate the entire carving process, and recycle the foam waste generated during carving.

[0005] The objective of this invention can be achieved through the following technical solutions: A method for processing art products coated with environmentally friendly water-based paint includes the following steps: S1. Surface cleaning: In a clean working environment free of dust, fly ash, and clutter, use an electrostatic duster to remove floating dust from the surface of the sculpted PU foam material. Then, use a slightly damp microfiber cloth (wrung out until no water drips) to wipe the surface of the sculpted PU foam material along a W-shaped path to avoid leaving marks by rubbing in circles. S2. Prepare the coating: The environmentally friendly water-based coating is composed of the following components by weight: 35-60 parts of base resin, 15-30 parts of pigment, 1-3 parts of film-forming aid, 15-30 parts of water, and 1-5 parts of functional additive. The above components are mixed by stirring in a mixer, and 10-15 parts of curing agent and 10-15 parts of filler are added during the stirring process. S3, Coating: Using a 1.5-2.5mm nozzle spray gun at an air pressure of 3-5 bar, the obtained environmentally friendly water-based coating is evenly applied to the sculpted PU foam material. Leveling is carried out at room temperature for 3-6 minutes, followed by baking at 60-80℃ for 30 minutes. S4. Carving and shaping: The sculpting PU foam material with a surface coating is placed into the carving equipment for carving. After the sculpting PU foam material is formed, the dust accumulated in the gaps of the sculpting PU foam material is brushed out with a bristle brush. The deep hollow areas of the sculpting PU foam material are pulsed with compressed air (0.2MPa pressure) by a blower to clean the residual material in the carved area of ​​the sculpting PU foam material. S5. Defect Repair: After pre-soaking and squeezing out water with a soft brush, apply environmentally friendly water-based paint to the missing areas of the sculpted PU foam material. Allow it to dry naturally for 24 hours. Once dried and set, check the coverage under side lighting. Lighter colors require repeated overcoating and drying. After the coverage is satisfactory, check the coating for any runs, paint accumulation, or particles (pay special attention to the edges). Soften the coating by wetting 600-grit sandpaper for 10 minutes, then use a sanding block at a 30° angle along the grain and at a uniform speed to remove dust. After thorough dust removal, upgrade to 1000-grit sandpaper and polish the coating in the same way to obtain an art product coated with environmentally friendly water-based paint.

[0006] The filler in step S2 is ultrafine calcium carbonate, and the base resin is a mixture of acrylic emulsion and waterborne polyurethane dispersion.

[0007] The functional additives in step S2 consist of the following components by weight: 0.5-0.8 parts dispersant, 0.1-0.3 parts defoamer, and 0.1 parts preservative.

[0008] The carving equipment used in step S4 is an art product processing equipment, including a processing box, a processing cavity opened inside the processing box, a recycling cavity opened inside the processing box, and a pair of recycling channels opened between the processing cavity and the recycling cavity. A waste recycling belt is slidably installed in each recycling channel. A clamping seat is slidably installed at the bottom of the processing cavity inside the processing box. A movable seat is installed at the bottom of the clamping seat, and a servo motor six is ​​fixed inside the movable seat. The output shaft of the servo motor six is ​​coaxially fixedly connected to the clamping seat. A servo motor seven is also fixed inside the processing box. A conveying screw is rotatably connected inside the processing box, and the conveying screw is connected to the servo motor... The output shaft of the machine is coaxially fixedly connected, the drive screw is threadedly connected to the moving seat, a limit component is installed on the clamp, both waste recycling belts are fixedly connected to the clamp, and a pair of take-up rollers are rotatably connected inside the processing box. The roller surface of each take-up roller is fixedly connected to one end of the corresponding waste recycling belt, and a return torsion spring is fixed at the rotating shaft of each take-up roller. A recycling component is installed inside the recycling chamber, a drive arm is slidably connected to the top surface of the processing chamber, a non-circular drive rod is rotatably connected to the drive arm, a drive frame is slidably mounted on the non-circular drive rod, and a component matching the shape of the non-circular drive rod is rotatably connected inside the drive frame. The device is equipped with a non-circularly shaped bushing, which fits onto a non-circularly shaped drive rod. A first drive bevel gear is coaxially fixedly connected to the bushing. A second drive bevel gear is rotatably connected inside the drive frame. The first and second drive bevel gears mesh with each other. A first drive shaft seat is rotatably connected to the drive base, and the first drive shaft seat is coaxially fixedly connected to the second drive bevel gear. A flexible shaft is coaxially fixedly connected to the first drive shaft seat. An adjustment arm is fixed to the drive frame, and an engraving frame is rotatably connected to the adjustment arm. The engraving frame houses an engraving component and a cleaning component, which are interconnected. A second drive shaft seat is rotatably connected to the engraving frame. The second drive shaft seat is connected to the engraving assembly for power connection. The second drive shaft seat is coaxially fixedly connected to the other end of the flexible shaft. A cleaning frame is fixed inside the processing cavity. The cleaning frame is hollow and has multiple nozzles fixed on it. All nozzles are connected to the inside of the cleaning frame. An air pump is fixed on the cleaning frame. One end of the air pump is connected to the inside of the cleaning frame. A brush frame is installed inside the processing cavity. A control screw is rotatably connected inside the processing box. The control screw is threadedly connected to the brush frame. A soft brush is fixed on the brush frame. A servo motor is fixed inside the processing box. The output shaft of the servo motor is coaxially fixedly connected to the control screw.

[0009] Using the above structure, the irregularly shaped drive rod rotates, driving the irregularly shaped bushing to rotate. The rotation of the bushing then drives the first drive bevel gear to rotate, which in turn drives the second drive bevel gear. The second drive bevel gear, in turn, drives the carving and cleaning components via a flexible shaft. The carving component processes the PU foam material. The flexible shaft, a flexible transmission component with elasticity and free bending, allows for normal power transmission even during the rotation of the carving frame. Combined with the mobility of the drive arm and frame, this device can carve from multiple angles, achieving complex structures and releasing the material's potential. Waste generated during carving falls onto the waste collection belt. Because a clamp is needed for transport during carving, the clamp transports the PU foam material, causing changes in the winding degree of the two waste collection belts. This allows the waste collection belts to wrap and carry the waste from the collection channel into the collection chamber, where the collection component processes it. This process keeps the device clean, reduces material waste, and improves material utilization.

[0010] The recycling assembly includes two extrusion screws rotatably connected in the recycling chamber and a pair of meshing gears rotatably connected in the processing box. The two meshing gears mesh with each other, and both meshing gears are coaxially fixedly connected to the corresponding extrusion screws. A servo motor is fixedly installed in the processing box, and the output shaft of the servo motor is coaxially fixedly connected to one of the meshing gears. An extrusion port communicating with the recycling chamber is provided on the processing box.

[0011] With the above structure, a servo motor drives one of the meshing gears to rotate, which in turn drives the other meshing gear to rotate. The two meshing gears then drive the corresponding extrusion screw to operate, thus shearing and extruding the waste material. This breaks down the waste material of uneven size into uniform particles, improving the recycling effect.

[0012] The limiting assembly includes four guide grooves on the top surface of the clamping seat, each guide groove having a clamping block slidably connected to it. A limiting rod is fixed within each guide groove, passing through the corresponding clamping block. A return spring is fixed between each clamping block and the groove wall of the corresponding guide groove. An adjusting wheel is rotatably connected to one of the clamping blocks. A driving worm and a driving worm wheel are rotatably connected within one of the clamping blocks, meshing with each other. The driving worm and the adjusting wheel are coaxially fixedly connected. A pair of winding rods are rotatably connected within one of the clamping blocks. A first transmission bevel gear is coaxially fixedly connected to each winding rod, and a pair of second transmission bevel gears are coaxially fixedly connected to the driving worm wheel. Both second transmission bevel gears mesh with their corresponding first transmission bevel gears. A tightening rope is connected in series to each clamping block, with both ends of the tightening rope fixedly connected to the rod surface of the corresponding winding rod.

[0013] With the above structure, the adjustment wheel can be rotated by human control. The adjustment wheel drives the drive worm gear to rotate, which in turn drives the drive worm wheel to rotate. The drive worm wheel then drives two transmission bevel gears (II) to rotate, which in turn drives their corresponding transmission bevel gears (I) to rotate. The rotation of the two transmission bevel gears (I) then drives their corresponding winding rods to rotate, which in turn winds up the tightening rope. This tightening rope then drives multiple connected clamping blocks to clamp and fix the sculpted PU foam material.

[0014] The engraving assembly includes a reciprocating lead screw rotatably connected within the engraving frame and a drive gear 1 rotatably connected within the engraving frame. The drive gear 1 is coaxially and fixedly connected to the reciprocating lead screw, and a push block is threaded onto the reciprocating lead screw. An engraving cutter is fixed on the push block. The drive gear 1 is coaxially and fixedly connected to a drive shaft seat 2, and the drive gear 1 is poweredly connected to the cleaning assembly.

[0015] With the above structure, the drive shaft seat two can drive the drive gear one to rotate, the drive gear one can drive the reciprocating screw to rotate, and the push block can drive the carving knife to reciprocate and extend, thereby realizing the carving action.

[0016] The cleaning assembly includes an air outlet slot on the carving frame and a fan rotatably connected inside the air outlet slot. The carving frame has ventilation holes that communicate with the air outlet slot, and a second drive gear is rotatably connected inside the carving frame. The second drive gear meshes with the first drive gear. An air outlet hose is fixed at the opening of the air outlet slot. Four servo motors nine are fixed on the carving frame around the air outlet hose. The output shaft of each servo motor nine is coaxially fixedly connected to a roller. Each roller is fixedly connected to the outer wall of the air outlet hose with a traction rope.

[0017] With the above structure, drive gear one can drive drive gear two to rotate, drive gear two can drive the fan to operate, so that the fan generates wind to blow away and clean the waste material generated at the carving point, and the wind direction angle can be adjusted by the servo motor winding the traction rope.

[0018] Multiple support plates are arranged and fixed inside the waste recycling belt. The belt surface, processing chamber, and recycling chamber walls are all coated with an antistatic coating. A sealing plate is hinged at the opening of the processing chamber, and an operating handle is rotatably connected to the sealing plate. A fastening groove is opened at the opening of the processing chamber, and a fastening block is fixed on the sealing plate. The fastening groove and the fastening block are fastened together. A pushing groove is opened inside the fastening block, and a plug-in block is slidably connected inside the pushing groove. A plug-in groove is opened inside the fastening groove, and the plug-in block is plugged into the plug-in groove. A connecting spring is fixed between the plug-in block and the bottom of the pushing groove. An adjusting rod is rotatably connected inside the fastening block, and a pull rope is fixed between the adjusting rod and the plug-in block. A transmission gear one and a transmission gear two are rotatably connected inside the sealing plate. A transmission toothed belt is connected between the transmission gear one and the transmission gear two. The transmission gear one is coaxially fixedly connected to the operating handle, and the transmission gear two is coaxially fixedly connected to the adjusting rod.

[0019] The above structure, with multiple fixed support plates arranged within the waste recycling belt, allows the belt to rewind normally while maintaining overall structural stability. An anti-static coating prevents waste generated during carving from being statically attracted to the inner wall of the device, thus ensuring effective recycling. The operating handle rotates, driving a first transmission gear, which in turn drives a second transmission gear. This rotation, in turn, rotates a control rod, which in turn rewinds or releases the pull rope, enabling the control plug and slot to engage. This further closes the sealing plate, creating a fully enclosed carving process and minimizing the risk of injury to those nearby.

[0020] The drive arm is rotatably connected to an adjustment screw, and a second servo motor is fixed inside the drive arm. The output shaft of the second servo motor is coaxially fixedly connected to the adjustment screw, and the adjustment screw is threadedly connected to the drive frame. A third servo motor is fixed inside the drive arm, and the output shaft of the third servo motor is coaxially fixedly connected to the irregularly shaped drive rod. A fourth servo motor is fixedly connected inside the adjustment arm, and the output shaft of the fourth servo motor is coaxially fixedly connected to the engraving frame.

[0021] With the above structure, the second servo motor drives the control screw to rotate, and the rotation of the control screw will drive the drive frame to move up and down. The third servo motor drives the irregularly shaped drive rod to rotate, and the irregularly shaped drive rod drives the sculpting component and the cleaning component to operate. The fourth servo motor drives the carving frame to rotate as a whole, so as to realize the carving of this device from multiple angles.

[0022] Compared with existing technologies, this method for processing art products coated with environmentally friendly water-based paint has the following advantages: 1. The irregularly shaped drive rod rotates, driving the irregularly shaped bushing to rotate. After the irregularly shaped bushing rotates, it drives the first drive bevel gear to rotate. After the first drive bevel gear rotates, it drives the second drive bevel gear to rotate. After the second drive bevel gear rotates, it drives the carving component and the cleaning component to transmit power through the flexible shaft. The carving component carves and processes the sculpted PU foam material. The flexible shaft is a flexible transmission component with elasticity and free bending transmission. This allows it to transmit power normally during the rotation of the carving frame. Combined with the mobility of the drive arm and drive frame, this device can carve from multiple angles and complete complex structures.

[0023] 2. Waste generated during the carving process will fall onto the waste recycling belt. Because the carving process requires the clamp to transport the sculpting PU foam material, the clamp will cause the two waste recycling belts to change their winding degree during the transportation process. This allows the waste recycling belts to wrap the waste material and drop it from the recycling channel into the recycling chamber. The waste is then processed by the recycling component. This keeps the inside of the device clean, reduces material waste, and improves material utilization.

[0024] 3. Because the structural strength of the sculpting foam material is relatively weak, a special environmentally friendly water-based coating is applied before sculpting. The special environmentally friendly water-based coating contains ultrafine calcium carbonate, which interconnects with other materials to form a hardened layer on the surface of the sculpting foam, thereby improving the structural strength of the sculpting foam. This makes it less likely for the structure to collapse or break during sculpting. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the method steps of the present invention.

[0026] Figure 2 This is a comparative experimental table of weather resistance in this invention.

[0027] Figure 3 This is a comparative test table of wear resistance in this invention.

[0028] Figure 4 This is a schematic diagram of the processing device in this invention.

[0029] Figure 5 This is a schematic diagram of the overall internal structure of the processing device in this invention.

[0030] Figure 6 yes Figure 5 A schematic diagram of the structure of region a in the middle.

[0031] Figure 7 This is a three-dimensional structural diagram of the drive arm in this invention.

[0032] Figure 8 This is a schematic diagram of the internal structure of the drive frame in this invention.

[0033] Figure 9 This is a schematic diagram of the engraving component in this invention.

[0034] Figure 10 This is a schematic diagram of the internal structure of the clamp in this invention.

[0035] Figure 11 This is a schematic diagram of the internal structure of the clamping block in this invention.

[0036] Figure 12 This is a schematic diagram of the recycling component in this invention.

[0037] Figure 13 This is a schematic diagram of the internal structure of the waste recycling belt in this invention.

[0038] In the diagram, 1. Processing box; 2. Processing chamber; 3. Recycling chamber; 4. Recycling channel; 5. Waste recycling belt; 6. Clamp; 7. Rewinding roller; 8. Drive arm; 9. Irregularly shaped drive rod; 10. Drive frame; 11. Irregularly shaped bushing; 12. Drive bevel gear one; 13. Drive bevel gear two; 14. Drive shaft seat one; 15. Flexible shaft; 16. Adjustment arm; 17. Engraving frame; 18. Drive shaft seat two; 19. Extrusion screw; 20. 21. Meshing gear; 22. Servo motor 1; 23. Extrusion port; 24. Guide groove; 25. Clamping block; 26. Limiting rod; 27. Return spring; 28. Adjusting wheel; 29. ​​Drive worm gear; 30. Drive worm wheel; 31. Retracting rod; 32. Transmission bevel gear 1; 33. Transmission bevel gear 2; 34. Tensioning rope; 35. Reciprocating screw; 36. Drive gear 1; 37. Pushing block; 38. Engraving knife; 39. Air outlet. 39. Fan; 40. Ventilation vent; 41. Drive gear two; 42. Support plate; 43. Adjustment screw; 44. Servo motor two; 45. Servo motor three; 46. Servo motor four; 47. Servo motor five; 48. Drive screw; 49. Sealing plate; 50. Operating handle; 51. Snap-fit ​​groove; 52. Snap-fit ​​block; 53. Push groove; 54. Insertion block; 55. Insertion groove; 56. Connecting spring; 57. Adjustment lever 58. Pull rope; 59. Transmission gear one; 60. Transmission gear two; 61. Transmission belt; 62. Moving seat; 63. Servo motor six; 64. Servo motor seven; 65. Conveyor screw; 66. Cleaning frame; 67. Nozzle; 68. Air pump; 69. Brush frame; 70. Control screw; 71. Soft brush; 72. Servo motor eight; 73. Air outlet hose; 74. Servo motor nine; 75. Roller; 76. Traction rope. Detailed Implementation

[0039] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments. Example

[0040] A method for processing art products coated with environmentally friendly water-based paint includes the following steps: S1. Surface cleaning: In a clean working environment free of dust, fly ash, and clutter, use an electrostatic duster to remove floating dust from the surface of the sculpted PU foam material. Then, use a slightly damp microfiber cloth (wrung out until no water drips) to wipe the surface of the sculpted PU foam material along a W-shaped path to avoid leaving marks by rubbing in circles. S2. Prepare the coating: The environmentally friendly water-based coating is composed of the following components by weight: 35 parts base resin, 15 parts pigment, 1 part film-forming aid, 15 parts water, and 1 part functional additive. The above components are mixed by stirring in a mixer, and 10 parts each of curing agent and filler are added during the stirring process. S3, Coating: Using a 1.5-inch spray gun at an air pressure of 3, the obtained environmentally friendly water-based coating is evenly applied to the sculpted PU foam material. The coating is then leveled at room temperature for 3 minutes and baked at 60°C for 30 minutes. S4. Carving and shaping: The sculpting PU foam material with a surface coating is placed into the carving equipment for carving. After the sculpting PU foam material is formed, the dust accumulated in the gaps of the sculpting PU foam material is brushed out with a bristle brush. The deep hollow areas of the sculpting PU foam material are pulsed with compressed air (0.2MPa pressure) by a blower to clean the residual material in the carved area of ​​the sculpting PU foam material. S5. Defect Repair: After pre-soaking and squeezing out water with a soft brush, apply environmentally friendly water-based paint to the missing areas of the sculpted PU foam material. Allow it to dry naturally for 24 hours. Once dried and set, check the coverage under side lighting. Lighter colors require repeated overcoating and drying. After the coverage is satisfactory, check the coating for any runs, paint accumulation, or particles (pay special attention to the edges). Soften the coating by wetting 600-grit sandpaper for 10 minutes, then use a sanding block at a 30° angle along the grain and at a uniform speed to remove dust. After thorough dust removal, upgrade to 1000-grit sandpaper and polish the coating in the same way to obtain an art product coated with environmentally friendly water-based paint.

[0041] The filler in step S2 is ultrafine calcium carbonate, and the base resin is a mixture of acrylic emulsion and waterborne polyurethane dispersion.

[0042] The functional additives in step S2 consist of the following components by weight: 0.5 parts dispersant, 0.1 parts defoamer, and 0.1 parts preservative.

[0043] The equipment used in this embodiment are all processing equipment that can be purchased on the existing market. Example

[0044] like Figure 1 As shown, a method for processing an art piece coated with an environmentally friendly water-based paint includes the following steps: S1. Surface cleaning: In a clean working environment free of dust, fly ash, and clutter, use an electrostatic duster to remove floating dust from the surface of the sculpted PU foam material. Then, use a slightly damp microfiber cloth (wrung out until no water drips) to wipe the surface of the sculpted PU foam material along a W-shaped path to avoid leaving marks by rubbing in circles. S2. Prepare the coating: The environmentally friendly water-based coating is composed of the following components by weight: 35 parts base resin, 15 parts pigment, 1 part film-forming aid, 15 parts water, and 1 part functional additive. The above components are mixed by stirring in a mixer, and 10 parts each of curing agent and filler are added during the stirring process. S3, Coating: Using a 1.5-inch spray gun at an air pressure of 3, the obtained environmentally friendly water-based coating is evenly applied to the sculpted PU foam material. The coating is then leveled at room temperature for 3 minutes and baked at 60°C for 30 minutes. S4. Carving and shaping: The sculpting PU foam material with a surface coating is placed into the carving equipment for carving. After the sculpting PU foam material is formed, the dust accumulated in the gaps of the sculpting PU foam material is brushed out with a bristle brush. The deep hollow areas of the sculpting PU foam material are pulsed with compressed air (0.2MPa pressure) by a blower to clean the residual material in the carved area of ​​the sculpting PU foam material. S5. Defect Repair: After pre-soaking and squeezing out water with a soft brush, apply environmentally friendly water-based paint to the missing areas of the sculpted PU foam material. Allow it to dry naturally for 24 hours. Once dried and set, check the coverage under side lighting. Lighter colors require repeated overcoating and drying. After the coverage is satisfactory, check the coating for any runs, paint accumulation, or particles (pay special attention to the edges). Soften the coating by wetting 600-grit sandpaper for 10 minutes, then use a sanding block at a 30° angle along the grain and at a uniform speed to remove dust. After thorough dust removal, upgrade to 1000-grit sandpaper and polish the coating in the same way to obtain an art product coated with environmentally friendly water-based paint.

[0045] The filler in step S2 is ultrafine calcium carbonate, and the base resin is a mixture of acrylic emulsion and waterborne polyurethane dispersion.

[0046] The functional additives in step S2 consist of the following components by weight: 0.5 parts dispersant, 0.1 parts defoamer, and 0.1 parts preservative.

[0047] like Figures 4-13As shown, the carving equipment used in step S4 is an art product processing equipment, including a processing box 1, a processing cavity 2 opened inside the processing box 1, a recycling cavity 3 opened inside the processing box 1, and a pair of recycling channels 4 opened between the processing cavity 2 and the recycling cavity 3. A waste recycling belt 5 is slidably arranged in each recycling channel 4. A clamp 6 is slidably arranged at the bottom of the processing cavity 2 inside the processing box 1. A movable seat 62 is arranged at the bottom of the clamp 6. A servo motor 63 is fixed inside the movable seat 62. The output shaft of the servo motor 63 is coaxially fixedly connected to the clamp 6. A servo motor 64 is fixed inside the processing box 1. A conveying screw 65 is rotatably connected inside the processing box 1. The conveying screw 65 is connected to the output shaft of the servo motor 64. A coaxial fixed connection is established, with the drive screw 48 threadedly connected to the moving seat 62. A limit assembly is installed on the clamping seat 6. Both waste recycling belts 5 are fixedly connected to the clamping seat 6. A pair of take-up rollers 7 are rotatably connected inside the processing box 1. The roller surface of each take-up roller 7 is fixedly connected to one end of the corresponding waste recycling belt 5. A reset torsion spring is fixed at the rotating shaft of each take-up roller 7. A recycling assembly is installed inside the recycling chamber 3. A drive arm 8 is slidably connected to the top surface of the processing chamber 2. A shaped drive rod 9 is rotatably connected to the drive arm 8. A drive frame 10 is slidably mounted on the shaped drive rod 9. A shaped bushing 11 matching the shape of the shaped drive rod 9 is rotatably connected inside the drive frame 10. The shaped bushing 11 is fitted with the shaped drive rod 9. A shaped drive rod 9 is provided, and a drive bevel gear 12 is coaxially fixedly connected to the shaped bushing 11. A drive bevel gear 13 is rotatably connected inside the drive frame 10. The drive bevel gear 12 and the drive bevel gear 13 mesh. A drive shaft seat 14 is rotatably connected to the drive seat, and the drive shaft seat 14 and the drive bevel gear 13 are coaxially fixedly connected. A flexible shaft rod 15 is coaxially fixedly connected to the drive shaft seat 14. An adjustment arm 16 is fixed on the drive frame 10. An engraving frame 17 is rotatably connected to the adjustment arm 16. An engraving component and a cleaning component are provided on the engraving frame 17. The engraving component and the cleaning component are mutually connected. A drive shaft seat 18 is rotatably connected to the engraving component. The drive shaft seat 18 is coaxially fixed to the other end of the flexible shaft 15. A cleaning frame 66 is fixed inside the processing cavity 2. The cleaning frame 66 is hollow inside and has multiple nozzles 67 fixed on it. All nozzles 67 are connected to the inside of the cleaning frame 66. An air pump 68 is fixed on the cleaning frame 66. One end of the air pump 68 is connected to the inside of the cleaning frame 66. A brush frame 69 is provided inside the processing cavity 2. A control screw 70 is rotatably connected inside the processing box 1. The control screw 70 is threaded to the brush frame 69. A soft brush 71 is fixed on the brush frame 69. A servo motor 72 is fixed inside the processing box 1. The output shaft of the servo motor 72 is coaxially fixed to the control screw 70.

[0048] The recycling assembly includes two extrusion screws 19 rotatably connected in the recycling chamber 3 and a pair of meshing gears 20 rotatably connected in the processing box 1. The two meshing gears 20 mesh with each other, and both meshing gears 20 are coaxially fixedly connected to the corresponding extrusion screws 19. A servo motor 21 is fixedly installed in the processing box 1. The output shaft of the servo motor 21 is coaxially fixedly connected to one of the meshing gears 20. An extrusion port 22 communicating with the recycling chamber 3 is provided on the processing box 1.

[0049] The limiting assembly includes four guide grooves 23 formed on the top surface of the clamping seat 6. Each guide groove 23 is slidably connected to a clamping block 24. Each guide groove 23 has a limiting rod 25 that passes through the corresponding clamping block 24. Each clamping block 24 and the groove wall of the corresponding guide groove 23 are fixedly connected to a return spring 26. An adjusting wheel 27 is rotatably connected to one of the clamping blocks 24. A drive worm 28 and a drive worm wheel 29 are rotatably connected to one of the clamping blocks 24, and the drive worm 28 and the drive worm wheel 29 mesh with each other. Furthermore, the drive worm gear 28 is coaxially and fixedly connected to the regulating wheel 27. A pair of winding rods 30 are rotatably connected inside one of the clamping blocks 24. A transmission bevel gear 31 is coaxially and fixedly connected to each winding rod 30. A pair of transmission bevel gears 32 are coaxially and fixedly connected to the drive worm gear 29. Both transmission bevel gears 32 mesh with the corresponding transmission bevel gears 31. A tightening rope 33 is connected in series on each clamping block 24. Both ends of the tightening rope 33 are fixedly connected to the rod surface of the corresponding winding rod 30.

[0050] The engraving assembly includes a reciprocating screw 34 rotatably connected within the engraving frame 17 and a drive gear 35 rotatably connected within the engraving frame 17. The drive gear 35 is coaxially fixedly connected to the reciprocating screw 34, and a push block 36 is threadedly connected to the reciprocating screw 34. An engraving cutter 37 is fixed on the push block 36. The drive gear 35 is coaxially fixedly connected to the drive shaft seat 18, and the drive gear 35 is poweredly connected to the cleaning assembly.

[0051] The cleaning components include an air outlet slot 38 on the carving frame 17, a fan 39 rotatably connected inside the air outlet slot 38, a ventilation hole 40 on the carving frame 17 communicating with the air outlet slot 38, and a second drive gear 41 rotatably connected inside the carving frame 17. The second drive gear 41 meshes with the first drive gear 35. An air outlet hose 73 is fixed at the opening of the air outlet slot 38. Four servo motors 9 74 are fixed on the carving frame 17 around the air outlet hose 73. The output shaft of each servo motor 9 74 is coaxially fixedly connected to a roller 75. Each roller 75 is fixedly connected to the outer wall of the air outlet hose 73 with a traction rope 76.

[0052] Multiple support plates 42 are arranged and fixed inside the waste recycling belt 5. The belt surface of the waste recycling belt 5 and the walls of the processing chamber 2 and the recycling chamber 3 are all coated with an antistatic coating. A sealing plate 49 is hinged at the opening of the processing chamber 2. An operating handle 50 is rotatably connected to the sealing plate 49. A fastening groove 51 is provided at the opening of the processing chamber 2. A fastening block 52 is fixed on the sealing plate 49. The fastening groove 51 and the fastening block 52 are fastened together. A pushing groove 53 is provided inside the fastening block 52. A plug-in block 54 is slidably connected inside the pushing groove 53. A plug-in groove 54 is provided inside the fastening groove 51. 5. The plug-in block 54 is plugged into the plug-in slot 55, and the plug-in block 54 is fixed to the bottom of the push slot 53 with a connecting spring 56. The adjusting rod 57 is rotatably connected inside the fastening block 52. A pull rope 58 is fixed between the adjusting rod 57 and the plug-in block 54. The first transmission gear 59 and the second transmission gear 60 are rotatably connected inside the sealing plate 49. A transmission toothed belt 61 is connected between the first transmission gear 59 and the second transmission gear 60. The first transmission gear 59 is coaxially fixedly connected to the operating handle 50, and the second transmission gear 60 is coaxially fixedly connected to the adjusting rod 57.

[0053] A control screw 43 is rotatably connected inside the drive arm 8. A second servo motor 44 is fixed inside the drive arm 8. The output shaft of the second servo motor 44 is coaxially fixedly connected to the control screw 43. The control screw 43 is threadedly connected to the drive frame 10. A third servo motor 45 is fixed inside the drive arm 8. The output shaft of the third servo motor 45 is coaxially fixedly connected to the irregular drive rod 9. A fourth servo motor 46 is fixedly connected inside the control arm 16. The output shaft of the fourth servo motor 46 is coaxially fixedly connected to the engraving frame 17. Example

[0054] A method for processing art products coated with environmentally friendly water-based paint includes the following steps: S1. Surface cleaning: In a clean working environment free of dust, fly ash, and clutter, use an electrostatic duster to remove floating dust from the surface of the sculpted PU foam material. Then, use a slightly damp microfiber cloth (wrung out until no water drips) to wipe the surface of the sculpted PU foam material along a W-shaped path to avoid leaving marks by rubbing in circles. S2. Prepare the coating: The environmentally friendly water-based coating is composed of the following components by weight: 64 parts base resin, 32 parts pigment, 2 parts film-forming aid, 33 parts water, and 6 parts functional additives. The above components are mixed by stirring in a mixer, and 13 parts each of curing agent and filler are added during the stirring process. S3, Coating: Using a 2.7mm nozzle spray gun at 3 bar air pressure, the obtained environmentally friendly water-based coating is evenly applied to the sculpted PU foam material. The coating is then leveled at room temperature for 8 minutes and baked at 70℃ for 20 minutes. S4. Carving and shaping: The sculpting PU foam material with a surface coating is placed into the carving equipment for carving. After the sculpting PU foam material is formed, the dust accumulated in the gaps of the sculpting PU foam material is brushed out with a bristle brush. The deep hollow areas are cleaned by pulse blowing with compressed air (0.1MPa pressure) at a distance of 30cm to remove the residual material from the carved areas of the sculpting PU foam material. S5. Defect Repair: After pre-soaking and squeezing out water with a soft brush, apply environmentally friendly water-based paint to the missing areas of the sculpted PU foam material. Allow it to dry naturally for 24 hours. Once dried and set, check the coverage under side lighting. Lighter colors require repeated overcoating and drying. After the coverage is satisfactory, check the coating for any runs, paint accumulation, or particles (pay special attention to the edges). Soften the coating by wetting 600-grit sandpaper for 10 minutes, then use a sanding block at a 30° angle along the grain and at a uniform speed to remove dust. After thorough dust removal, upgrade to 1000-grit sandpaper and polish the coating in the same way to obtain an art product coated with environmentally friendly water-based paint.

[0055] The filler in step S2 is ultrafine calcium carbonate, and the base resin is a mixture of acrylic emulsion and waterborne polyurethane dispersion.

[0056] The functional additives in step S2 consist of the following components by weight: 0.6 parts dispersant, 0.2 parts defoamer, and 0.1 parts preservative.

[0057] The processing equipment used in this embodiment is the same as that in Embodiment 2, but the difference lies in the formulation ratio and processing conditions. Example

[0058] A method for processing art products coated with environmentally friendly water-based paint includes the following steps: S1. Surface cleaning: In a clean working environment free of dust, fly ash, and clutter, use an electrostatic duster to remove floating dust from the surface of the sculpted PU foam material. Then, use a slightly damp microfiber cloth (wrung out until no water drips) to wipe the surface of the sculpted PU foam material along a W-shaped path to avoid leaving marks by rubbing in circles. S2. Prepare the coating: The environmentally friendly water-based coating is composed of the following components by weight: 50 parts base resin, 25 parts pigment, 2 parts film-forming aid, 20 parts water, and 4 parts functional additives. The above components are mixed by stirring in a mixer, and 13 parts each of curing agent and filler are added during the stirring process. S3, Coating: Using a 2.4mm nozzle spray gun at 4 bar air pressure, the obtained environmentally friendly water-based coating is evenly applied to the sculpted PU foam material. The coating is then leveled at room temperature for 5 minutes and baked at 70℃ for 25 minutes. S4. Carving and shaping: The sculpting PU foam material with a surface coating is placed into the carving equipment for carving. After the sculpting PU foam material is formed, the dust accumulated in the gaps of the sculpting PU foam material is brushed out with a bristle brush. The deep hollow areas of the sculpting PU foam material are pulsed with compressed air (0.2MPa pressure) by a blower to clean the residual material in the carved area of ​​the sculpting PU foam material. S5. Defect Repair: After pre-soaking and squeezing out water with a soft brush, apply environmentally friendly water-based paint to the missing areas of the sculpted PU foam material. Allow it to dry naturally for 24 hours. Once dried and set, check the coverage under side lighting. Lighter colors require repeated overcoating and drying. After the coverage is satisfactory, check the coating for any runs, paint accumulation, or particles (pay special attention to the edges). Soften the coating by wetting 600-grit sandpaper for 10 minutes, then use a sanding block at a 30° angle along the grain and at a uniform speed to remove dust. After thorough dust removal, upgrade to 1000-grit sandpaper and polish the coating in the same way to obtain an art product coated with environmentally friendly water-based paint.

[0059] The filler in step S2 is ultrafine calcium carbonate, and the base resin is a mixture of acrylic emulsion and waterborne polyurethane dispersion.

[0060] The functional additives in step S2 consist of the following components by weight: 0.7 parts dispersant, 0.2 parts defoamer, and 0.1 parts preservative.

[0061] The processing equipment used in this embodiment is the same as that in Embodiment 2, but the difference lies in the formulation ratio and processing conditions.

[0062] Experimental Example Samples prepared in Examples 1-4 and commercially available foam sculptures were placed in a xenon lamp aging chamber. Samples were periodically removed to observe changes in appearance and mechanical properties. The weather resistance of the paint surface was evaluated according to the national standard GB / T 1865-2009 "Artificial Climate Aging and Artificial Radiation Exposure to Filtered Xenon Arc Radiation of Paints and Varnishes". The results are as follows: Figure 2 As shown.

[0063] according to Figure 2 Data shows that not only does the recoating after carving affect the weather resistance of the paint, but tensile strength is also affected by the proportion of each material added. Excessive addition will reduce the weather resistance of the paint, while an appropriate range of material proportions will significantly improve the weather resistance of the paint. The samples prepared in Examples 1-4 and existing products were subjected to rotational abrasion tests according to GB / T 1768 standard, and the abrasion values ​​(mg / 1000r) were recorded. The results are as follows: Figure 3 As shown.

[0064] The only difference between Example 1 and Example 2 is the preparation equipment used in S4. The tensile strength and wear resistance of the sample in Example 2 are significantly stronger than those in Example 1. Therefore, the processing equipment in this invention can improve the tensile strength and wear resistance of the sample.

[0065] Compared with Example 2, Examples 3 and 4 differ only in processing conditions; the equipment used in the processing steps is the same. The tensile strength values ​​of the samples in Examples 3 and 4 are weaker than those in Example 2. This shows that different processing conditions can also affect the fluctuation of the tensile strength and wear resistance values ​​of the samples.

[0066] In summary, the material produced by the process of coating art products with environmentally friendly water-based paint has significantly higher tensile strength and wear resistance than foam sculptures produced by existing processing methods.

[0067] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A method for processing art products coated with environmentally friendly water-based paint, comprising the following steps: S1. Surface cleaning: In a clean working environment free of dust, fly ash, and clutter, use an electrostatic duster to remove floating dust from the surface of the sculpted PU foam material. Then, use a slightly damp microfiber cloth (wrung out until no water drips) to wipe the surface of the sculpted PU foam material along a W-shaped path to avoid leaving marks by rubbing in circles. S2. Prepare the coating: The environmentally friendly water-based coating is composed of the following components by weight: 35-60 parts of base resin, 15-30 parts of pigment, 1-3 parts of film-forming aid, 15-30 parts of water, and 1-5 parts of functional additive. The above components are mixed by stirring in a mixer, and 10-15 parts of curing agent and 10-15 parts of filler are added during the stirring process. S3, Coating: Using a 1.5-2.5mm nozzle spray gun at an air pressure of 3-5 bar, the obtained environmentally friendly water-based coating is evenly applied to the sculpted PU foam material. Leveling is carried out at room temperature for 3-6 minutes, followed by baking at 60-80℃ for 30 minutes. S4. Carving and shaping: The sculpting PU foam material with a surface coating is placed into the carving equipment for carving. After the sculpting PU foam material is formed, the dust accumulated in the gaps of the sculpting PU foam material is brushed out with a bristle brush. The deep hollow areas of the sculpting PU foam material are pulsed with compressed air (0.2MPa pressure) by a blower to clean the residual material in the carved area of ​​the sculpting PU foam material. S5. Defect Repair: After pre-soaking and squeezing out water with a soft brush, apply environmentally friendly water-based paint to the missing areas of the sculpted PU foam material. Allow it to dry naturally for 24 hours. Once dried and set, check the coverage under side lighting. Lighter colors require repeated overcoating and drying. After the coverage is satisfactory, check the coating for any runs, paint accumulation, or particles (pay special attention to the edges). Soften the coating by wetting 600-grit sandpaper for 10 minutes, then use a sanding block at a 30° angle along the grain and at a uniform speed to remove dust. After thorough dust removal, upgrade to 1000-grit sandpaper and polish the coating in the same way to obtain an art product coated with environmentally friendly water-based paint.

2. The processing method for an art product coated with an environmentally friendly water-based coating according to claim 1, characterized in that, The filler in step S2 is ultrafine calcium carbonate, and the base resin is a mixture of acrylic emulsion and waterborne polyurethane dispersion.

3. The processing method for an art product coated with an environmentally friendly water-based coating according to claim 1, characterized in that, The functional additives in step S2 consist of the following components by weight: 0.5-0.8 parts dispersant, 0.1-0.3 parts defoamer, and 0.1 parts preservative.

4. The processing method for an art product coated with an environmentally friendly water-based coating according to claim 1, characterized in that, The carving equipment used in step S4 is an art product processing equipment, including a processing box (1), a processing cavity (2) opened inside the processing box (1), a recycling cavity (3) opened inside the processing box (1), and a pair of recycling channels (4) opened between the processing cavity (2) and the recycling cavity (3). Each recycling channel (4) is slidably equipped with a waste recycling belt (5). A clamp (6) located at the bottom of the processing cavity (2) is slidably installed inside the processing box (1). A movable seat (62) is set at the bottom of the clamp (6). A servo motor six (63) is fixed inside the movable seat (62). The output shaft of the servo motor six (63) is coaxially fixedly connected to the clamp (6). A servo motor seven (64) is fixed inside the processing box (1). Inside the housing (1), a conveying screw (65) is rotatably connected. The conveying screw (65) is coaxially fixedly connected to the output shaft of the servo motor (64). The drive screw (48) is threadedly connected to the moving seat (62). A limit component is provided on the clamp (6). Both waste recycling belts (5) are fixedly connected to the clamp (6). Inside the processing housing (1), a pair of winding rollers (7) are rotatably connected. The roller surface of each winding roller (7) is fixedly connected to one end of the corresponding waste recycling belt (5). A reset torsion spring is fixed at the rotating shaft of each winding roller (7). A recycling component is provided inside the recycling chamber (3). A drive arm (8) is slidably connected to the top surface of the processing chamber (2). A non-circular drive rod (9) is rotatably connected to the drive arm (8). A drive frame (10) is slidably mounted on the irregularly shaped drive rod (9). An irregularly shaped bushing (11) matching the shape of the irregularly shaped drive rod (9) is rotatably connected inside the drive frame (10). The irregularly shaped bushing (11) is fitted onto the irregularly shaped drive rod (9), and a drive bevel gear (12) is coaxially fixedly connected to the irregularly shaped bushing (11). A drive bevel gear (13) is rotatably connected inside the drive frame (10). The drive bevel gear (12) meshes with the drive bevel gear (13). A drive shaft seat (14) is rotatably connected to the drive seat. The drive shaft seat (14) is coaxially fixedly connected to the drive bevel gear (13), and a flexible shaft rod (15) is coaxially fixedly connected to the drive shaft seat (14). An adjustment arm is fixed on the drive frame (10). (16) An engraving frame (17) is rotatably connected to the control arm (16). An engraving component and a cleaning component are installed on the engraving frame (17). The engraving component and the cleaning component are connected to each other through transmission. A second drive shaft seat (18) is rotatably connected to the engraving frame (17). The second drive shaft seat (18) is connected to the engraving component through power. The second drive shaft seat (18) is coaxially fixed to the other end of the flexible shaft (15). A cleaning frame (66) is fixed inside the processing cavity. The cleaning frame (66) is hollow inside and has multiple nozzles (67) fixed on it. The multiple nozzles (67) are all connected to the inside of the cleaning frame (66). An air pump (68) is fixed on the cleaning frame (66). One end of the air pump (68) is connected to the inside of the cleaning frame (66).Furthermore, a brush holder (69) is installed inside the processing cavity (2), and a control screw (70) is rotatably connected inside the processing box (1). The control screw (70) is threadedly connected to the brush holder (69), and a soft brush (71) is fixed on the brush holder (69). A servo motor (72) is also fixed inside the processing box (1), and the output shaft of the servo motor (72) is coaxially fixedly connected to the control screw (70).

5. The processing method for an art product coated with an environmentally friendly water-based coating according to claim 4, characterized in that, The recycling assembly includes two extrusion screws (19) rotatably connected in the recycling chamber (3) and a pair of meshing gears (20) rotatably connected in the processing box (1). The two meshing gears (20) mesh with each other, and both meshing gears (20) are coaxially fixedly connected to the corresponding extrusion screws (19). A servo motor (21) is fixedly installed in the processing box (1). The output shaft of the servo motor (21) is coaxially fixedly connected to one of the meshing gears (20). An extrusion port (22) communicating with the recycling chamber (3) is opened on the processing box (1).

6. The processing method for an art product coated with an environmentally friendly water-based coating according to claim 4, characterized in that, The limiting component includes four guide grooves (23) formed on the top surface of the clamp (6), each guide groove (23) having a clamping block (24) slidably connected thereto. Each guide groove (23) has a limiting rod (25) fixed inside it, passing through the corresponding clamping block (24). Each clamping block (24) has a return spring (26) fixed between it and the groove wall of the corresponding guide groove (23). One clamping block (24) has a rotatably connected adjusting wheel (27), and one clamping block (24) has a rotatably connected driving worm gear (28) and driving worm wheel (29). 9) The drive worm (28) and the control wheel (27) are coaxially fixedly connected. A pair of winding rods (30) are rotatably connected in one of the clamps (24). A transmission bevel gear (31) is coaxially fixedly connected to each winding rod (30). A pair of transmission bevel gears (32) are coaxially fixedly connected to the drive worm wheel (29). Both transmission bevel gears (32) mesh with the corresponding transmission bevel gears (31). A tightening rope (33) is connected in series on each clamp (24). Both ends of the tightening rope (33) are fixedly connected to the rod surface of the corresponding winding rod (30).

7. The processing method for an art product coated with an environmentally friendly water-based coating according to claim 4, characterized in that, The engraving assembly includes a reciprocating screw (34) rotatably connected to the engraving frame (17) and a drive gear (35) rotatably connected to the engraving frame (17). The drive gear (35) is coaxially fixedly connected to the reciprocating screw (34), and a push block (36) is threadedly connected to the reciprocating screw (34). An engraving knife (37) is fixed on the push block (36). The drive gear (35) is coaxially fixedly connected to the drive shaft seat (18), and the drive gear (35) is poweredly connected to the cleaning assembly.

8. The processing method for an art product coated with an environmentally friendly water-based coating according to claim 7, characterized in that, The cleaning assembly includes an air outlet slot (38) on the carving frame (17) and a fan (39) rotatably connected inside the air outlet slot (38). The carving frame (17) has a ventilation hole (40) that communicates with the air outlet slot (38). A second drive gear (41) is rotatably connected inside the carving frame (17). The second drive gear (41) meshes with the first drive gear (35). An air outlet hose (73) is fixed at the opening of the air outlet slot (38). Four servo motors (74) are fixed on the carving frame (17) around the air outlet hose (73). The output shaft of each servo motor (74) is coaxially fixedly connected to a roller (75). Each roller (75) is fixedly connected to the outer wall of the air outlet hose (73) with a traction rope (76).

9. The processing method for an art product coated with an environmentally friendly water-based coating according to claim 4, characterized in that, Multiple support plates (42) are arranged and fixed inside the waste recycling belt (5), and the belt surface of the waste recycling belt (5), the cavity walls of the processing cavity (2) and the recycling cavity (3) are all coated with an antistatic coating. A sealing plate (49) is hinged at the cavity opening of the processing cavity (2), and an operating handle (50) is rotatably connected to the sealing plate (49). A fastening groove (51) is opened at the cavity opening of the processing cavity (2), and a fastening block (52) is fixed on the sealing plate (49). The fastening groove (51) and the fastening block (52) are fastened together, and a pushing groove (53) is opened inside the fastening block (52). A plug-in block (54) is slidably connected inside the pushing groove (53), and a plug-in groove (54) is opened inside the fastening groove (51). 55), the plug-in block (54) is plugged into the plug-in slot (55), and the plug-in block (54) and the bottom of the push slot (53) are fixed with a connecting spring (56), and the fastening block (52) is rotatably connected with an adjusting rod (57). The adjusting rod (57) and the plug-in block (54) are fixed with a pull rope (58). The sealing plate (49) is rotatably connected with a first transmission gear (59) and a second transmission gear (60). The first transmission gear (59) and the second transmission gear (60) are connected with a transmission toothed belt (61). The first transmission gear (59) and the operating handle (50) are coaxially fixedly connected, and the second transmission gear (60) and the adjusting rod (57) are coaxially fixedly connected.

10. The processing method for an art product coated with an environmentally friendly water-based coating according to claim 4, characterized in that, The drive arm (8) is rotatably connected to an adjustment screw (43), and a servo motor (44) is fixed inside the drive arm (8). The output shaft of the servo motor (44) is coaxially fixedly connected to the adjustment screw (43), and the adjustment screw (43) is threadedly connected to the drive frame (10). The drive arm (8) is also fixedly connected to a servo motor (45), and the output shaft of the servo motor (45) is coaxially fixedly connected to the irregular drive rod (9). The control arm (16) is fixedly connected to a servo motor (46), and the output shaft of the servo motor (46) is coaxially fixedly connected to the engraving frame (17). The processing box (1) is fixedly connected to a servo motor (47), and a drive screw (48) is rotatably connected inside the processing box (1). The output shaft of the servo motor (47) is coaxially fixedly connected to the drive screw (48), and the drive screw (48) is threadedly connected to the drive arm (8).

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