A high-toughness dual-curing UV coating preparation device and a preparation method thereof

Abstract

The application discloses a high-toughness double-curing UV coating preparation device and a preparation method thereof, and relates to the technical field of UV coatings.The application comprises a conveyor, the upper surface of the conveyor is fixedly connected with a photocuring chamber, the upper surface of the conveyor is fixedly connected with a mixing box, the inside of the photocuring chamber is provided with an ultraviolet lamp, the upper surface of the photocuring chamber is fixedly connected with a top cover, the inner surface of the top cover is rotatably connected with a reciprocating screw rod, and the upper surface of the conveyor is fixedly connected with a thermal curing chamber.The application realizes double curing by driving the diaphragm coated with UV coating to pass through the photocuring chamber and the thermal curing chamber in sequence, reduces the volume shrinkage and internal stress generated by photocuring, avoids the brittleness or cracking of the coating, improves the toughness, blocks the light to avoid escaping, and can be disassembled to facilitate the adjustment of the internal mechanism.The clamping frame drives the ultraviolet lamp to reciprocate, the coating is irradiated at multiple angles to avoid uneven light intensity distribution, and local curing deficiency is prevented.

Description

Technical Field

[0001] This invention belongs to the field of UV coatings, specifically relating to a high-toughness dual-curing UV coating preparation device and its preparation method. Background Technology

[0002] High-toughness dual-curing UV coatings combine UV curing and thermal or moisture curing mechanisms to overcome the defects of traditional UV coatings, such as high internal stress, significant volume shrinkage, and insufficient toughness after curing. This is due to the stringent requirements of high-end electronics, automotive, and optical devices for coating impact resistance, bending, and adhesion.

[0003] Patent CN117210117B discloses a high-toughness dual-curing UV coating and its preparation apparatus, comprising the following raw materials in parts by weight: water, carboxyl-modified water-soluble polyurethane acrylate, bisphenol A epoxy resin, organosilicon-modified acrylate, high-temperature resistant color-changing pigment, photoinitiator, dispersant, defoamer, curing agent, and wetting agent. The high-toughness dual-curing UV coating provided by this invention, by adding a dispersant to the dried and ground carboxyl-modified water-soluble polyurethane acrylate, bisphenol A epoxy resin, and organosilicon-modified acrylate, makes it difficult for the UV coating to cure within the pores of the aluminum alloy substrate surface when the UV coating is applied. Furthermore, by adding appropriate amounts of high-temperature resistant color-changing pigment, photoinitiator, defoamer, curing agent, and wetting agent, the UV coating is ensured to fully enter the pores before curing, preventing premature curing and pore blockage.

[0004] The above-mentioned device also has the following problems: the curing structure is mostly fixed, which leads to uneven curing and easily causes local under-curing or over-curing of the coating. Moreover, the curing structure is troublesome to replace, requiring shutdown to disassemble and install a large number of parts, limiting the operating space and reducing maintenance efficiency. At the same time, it lacks an effective shading and angle adjustment mechanism, resulting in poor light intensity utilization and curing quality stability. Summary of the Invention

[0005] The purpose of this invention is to provide a high-toughness dual-curing UV coating preparation device and preparation method, in order to solve the problems of uneven curing caused by multiple fixed installations of curing structures, which easily leads to local under-curing or over-curing of coatings, and the troublesome replacement of curing structures, which requires shutdown and disassembly of a large number of parts, limited operating space, low maintenance efficiency, lack of effective shading and angle adjustment mechanisms, and poor light intensity utilization and curing quality stability.

[0006] To achieve the above objectives, the present invention provides a high-toughness dual-curing UV coating preparation apparatus, comprising: A conveyor, wherein a light curing chamber is fixedly connected to the upper surface of the conveyor, a mixing box is fixedly connected to the upper surface of the conveyor, an ultraviolet lamp is installed inside the light curing chamber, a top cover is fixedly connected to the upper surface of the light curing chamber, a reciprocating screw is rotatably connected to the inner surface of the top cover, and a thermosetting chamber is fixedly connected to the upper surface of the conveyor. A discharge control device is installed at the bottom of the mixing tank and is used to control the discharge flow rate of the coating. A uniform coating device is installed at the bottom of the light curing chamber and is used to apply the coating evenly before curing.

[0007] According to another advantageous design of the invention, the photocuring chamber comprises: A movable component is threadedly connected to the circumferential surface of a reciprocating lead screw, and a rack is fixedly connected to the bottom end of the movable component. A rotating shaft is rotatably connected to the left and right sides of the inner wall of the light curing chamber, and a half gear is fixedly connected to the circumferential surface of the rotating shaft; A shielding cover is snapped onto the front and rear sides of the light curing chamber.

[0008] According to another advantageous design of the invention, the photocuring chamber further includes: A card frame is fixedly connected to the end of the rotating shaft away from the inner wall of the light curing chamber, and a support shaft is fixedly connected to the upper surface of the card frame; The screw is threaded onto the inner surface of the support shaft; A locking seat is snapped onto the inner surface of a card frame, and a pin is fixedly connected to the upper surface of the locking seat.

[0009] According to another advantageous design of the present invention, the top left and right sides of the light curing chamber are provided with sliding grooves, and the inner surface of the sliding grooves is slidably connected to the bottom of the moving part. The rack is slidably connected to the inner surfaces of the front and rear sides of the light curing chamber. The ultraviolet lamp is fixedly connected to the lower surface of the clamping seat. The insert shaft extends from the top surface of the inner wall of the clamping frame through the upper surface of the clamping frame. The screw and the inner surface of the insert shaft are threadedly connected.

[0010] According to another advantageous embodiment of the invention, the material feeding control device comprises: A feeding frame is fixedly connected to the lower surface of the mixing box; A baffle plate is slidably connected to the bottom surface of the inner wall of the mixing box, and a transverse sliding plate is fixedly connected to the upper surface of the baffle plate. According to another advantageous embodiment of the invention, the material feeding control device further includes: A trapezoidal bracket, which is fixedly connected to the side surface of the transverse sliding plate; A limiting square tube is slidably connected to the inner surface of the front side of the mixing box, and a trapezoidal push seat is fixedly connected to the rear end of the limiting square tube. A docking square tube is fixedly connected to the front side of the mixing box; A scraper, which is fixedly connected to the bottom surface of the inner wall of the mixing tank; A discharge frame is fixedly connected to the bottom end of a feed frame.

[0011] According to another advantageous design of the present invention, the front end of the docking square tube is fixedly connected to the rear side of the light curing chamber, the limiting square tube is slidably connected to the inner surface of the docking square tube, the rack is slidably connected to the inner surface of the docking square tube, the rear inclined surface of the trapezoidal push seat abuts against the front inclined surface of the trapezoidal card seat, the bottom edge of the scraper abuts against the upper surface of the baffle plate, and a spring telescopic rod is provided between the transverse plate and the inner wall side surface of the mixing box.

[0012] According to another advantageous embodiment of the invention, the uniform coating device comprises: An extrusion head is fixedly connected to the lower surface of the discharge frame; A convex plate is fixedly connected to the front and rear sides of the bottom of the light curing chamber, and a spreading roller is rotatably connected to the inner surface of the convex plate. According to another advantageous embodiment of the invention, the uniform coating device further includes: A transmission gear, which is fixedly connected to the circumferential surfaces at both ends of the spreading roller; The positioning component is fixedly connected to the left and right sides of the light curing chamber, and a toothed rack is slidably connected to the inner surface of the positioning component. The abutment plate is fixedly connected to the upper surface of the rack two; An L-shaped connecting rod is fixedly connected to one end of a rack, and a push plate is fixedly connected to the rear end of the L-shaped connecting rod.

[0013] According to another advantageous design of the invention, a spring telescopic rod is provided between the front side of the abutment plate and the rear side of the positioning member, the rack and pinion are meshed with the transmission gear, and the convex plate is fixedly connected to the upper surface of the conveyor.

[0014] A method for preparing a high-toughness dual-curing UV coating preparation device includes the following steps: Step 1: First, the diaphragm is laid on the conveyor. The mixing box extrudes the UV coating onto the diaphragm. The conveyor drives the coating through the light curing chamber and the heat curing chamber in sequence to achieve double curing. Step 2: Then, the shielding cover prevents light from escaping, and the reciprocating screw drives the moving part and the rack to slide, which in turn drives the rotating shaft through the half gear to make the ultraviolet lamp swing back and forth to irradiate evenly. Step 3: Subsequently, after prolonged use and with the intensity of the UV lamp decreasing, rotate the screw to pull out the insert shaft, and quickly pull the UV lamp out of the clip frame through the clip seat and insert shaft to complete the disassembly and replacement. Step 4: Finally, insert the new UV lamp into the mounting bracket and insert shaft, and tighten the screw to complete the installation. Use the rack and pinion mechanism to control the angle so that the front end of the screw faces downwards for easier installation. The beneficial effects of this invention are: 1. A conveyor belt carries a diaphragm coated with UV paint through a light curing chamber and a heat curing chamber, achieving dual curing. This reduces volume shrinkage and internal stress caused by light curing, preventing the coating from becoming brittle or cracking and improving toughness. A shielding cover blocks light to prevent scattering and is detachable for easy adjustment of the internal mechanism. The clamping frame drives the UV lamp to swing back and forth, irradiating the coating from multiple angles to avoid uneven light intensity distribution and prevent incomplete curing in some areas. Rotating the screw allows the insertion shaft to be pulled out or inserted, enabling quick disassembly and locking of the UV lamp and improving the ease of replacement. Furthermore, the angle of the clamping frame is controlled by a rack and pinion to keep the screw facing downwards, facilitating operation and further improving ease of use.

[0015] 2. Open the baffle plate to allow the paint to fall through the discharge chute into the feeding frame and then into the discharge box. The discharge box distributes the paint evenly, making it easier for it to fall onto the diaphragm. Close the baffle plate to stop continuous discharge and prevent the paint from piling up and affecting curing. The trapezoidal bracket and the transverse plate drive the baffle plate to close. When the rack moves away, the spring telescopic rod resets the transverse plate and drives the baffle plate to open, realizing segmented feeding and avoiding accumulation caused by excessive feeding. The scraper pushes the paint stuck on the baffle plate into the feeding box to prevent the paint from hardening and causing the baffle plate to jam, ensuring smooth segmented feeding.

[0016] 3. The spreading roller flattens the excessively piled paint, preventing it from concentrating and causing curing difficulties. The reciprocating push of rack two drives the transmission gear and spreading roller to rotate back and forth, increasing the contact area and preventing one end of the spreading roller from continuously sticking and affecting the spreading effect. Rack two slides in the positioning part, and the spring telescopic rod resets the contact plate, causing rack two to slide forward, realizing the automatic reciprocating movement of rack two, which in turn makes the spreading roller rotate automatically, continuously promoting the spreading effect and further preventing paint from piling up. Attached Figure Description

[0017] Figure 1 This is a perspective view of the front side of the device of the present invention; Figure 2 This is a three-dimensional half-sectional view of the front side of the photocuring chamber of the present invention; Figure 3 This is the invention Figure 2 Enlarged view of A in the middle; Figure 4 This is a three-dimensional half-sectional view of the rear side of the card frame of the present invention; Figure 5This is a three-dimensional half-sectional view of the rear side of the material feeding control device of the present invention; Figure 6 This is the invention Figure 5 Enlarged view of B in the middle; Figure 7 This is a perspective view of the front side of the uniform coating device of the present invention; Figure 8 This is the invention Figure 7 Enlarged view of C in the middle; Figure 9 This is the invention Figure 7 A magnified view of D.

[0018] The markings in the diagram are as follows: 1. Conveyor; 2. UV curing chamber; 3. Mixing box; 4. UV lamp; 5. Top cover; 6. Reciprocating screw; 7. Heat curing chamber; 8. Material discharge control device; 9. Uniform coating device; 10. Moving parts; 11. Rack I; 12. Half gear; 13. Cover; 14. Rotating shaft; 15. Frame; 16. Support shaft; 17. Screw; 18. Clamping seat; 19. Insert shaft; 81. Discharge frame; 82. Baffle plate; 83. Transverse plate; 84. Trapezoidal clamping seat; 85. Limiting square tube; 86. Trapezoidal push seat; 87. Connecting square tube; 88. Scraper; 89. Discharge frame; 91. Extrusion head; 92. Convex plate; 93. Spreading roller; 94. Transmission gear; 95. Rack II; 96. Positioning parts; 97. Contact plate; 98. L-shaped connecting rod; 99. Push plate. Detailed Implementation

[0019] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0020] like Figure 1-9As shown, one embodiment of the present invention is a high-toughness dual-curing UV coating preparation apparatus, including a conveyor 1, a light curing chamber 2 fixedly connected to the upper surface of the conveyor 1, a mixing tank 3 fixedly connected to the upper surface of the conveyor 1, an ultraviolet lamp 4 disposed inside the light curing chamber 2, a top cover 5 fixedly connected to the upper surface of the light curing chamber 2, a reciprocating screw 6 rotatably connected to the inner surface of the top cover 5, a thermosetting chamber 7 fixedly connected to the upper surface of the conveyor 1, a material discharge control device 8 disposed at the bottom of the mixing tank 3, the material discharge control device 8 being used to control the discharge flow rate of the coating, and a uniform coating device 9 disposed in the light curing chamber. 2. At the bottom, a uniform coating device 9 is used to apply the coating evenly before curing. The diaphragm coated with UV coating is driven by the conveyor 1 to pass through the light curing chamber 2 and the heat curing chamber 7 in sequence to achieve dual curing, reduce the volume shrinkage and internal stress caused by light curing, avoid the coating from becoming brittle or cracking, and improve toughness. The light curing chamber 2 includes a moving part 10, which is threaded to the circumferential surface of the reciprocating screw 6. A rack 11 is fixedly connected to the bottom end of the moving part 10. A rotating shaft 14 is rotatably connected to the left and right sides of the inner wall of the light curing chamber 2. A half gear 12 is fixedly connected to the circumferential surface of the rotating shaft 14. A shielding cover 13 is snapped onto the light curing chamber. The curing chamber 2 includes a frame 15 on both sides. The frame 15 is fixedly connected to the end of the rotating shaft 14 away from the inner wall of the curing chamber 2. A support shaft 16 is fixedly connected to the upper surface of the frame 15. A screw 17 is threadedly connected to the inner surface of the support shaft 16. A locking seat 18 is locked into the inner surface of the frame 15. An insert shaft 19 is fixedly connected to the upper surface of the locking seat 18. A shielding cover 13 blocks light to prevent it from escaping and is detachable for easy adjustment of the internal mechanism. The frame 15 drives the ultraviolet lamp 4 to swing back and forth, irradiating the coating from multiple angles to avoid uneven light intensity distribution and prevent localized insufficient curing. The top and left and right sides of the curing chamber 2 are also connected. The slide grooves are provided on both sides, and the inner surface of the slide grooves is slidably connected to the bottom of the moving part 10. The rack 11 is slidably connected to the inner surfaces of the front and rear sides of the light curing chamber 2. The ultraviolet lamp 4 is fixedly connected to the lower surface of the clamping seat 18. The insertion shaft 19 extends from the top surface of the inner wall of the clamping frame 15 through the upper surface of the clamping frame 15. The screw 17 is threadedly connected to the inner surface of the insertion shaft 19. Rotating the screw 17 causes the insertion shaft 19 to be pulled out or inserted, realizing the quick disassembly and locking of the ultraviolet lamp 4, improving the convenience of replacement. Furthermore, the angle of the clamping frame 15 is controlled by the rack 11 and the half gear 12 so that the screw 17 faces downward, which is convenient for operation and further improves the ease of use.

[0021] Working principle: The diaphragm for curing is laid on conveyor 1, and then conveyor 1 is started. At this time, the mixed UV coating is applied to the diaphragm through the mixing tank 3. Conveyor 1 carries the coating through the light curing chamber 2 and the heat curing chamber 7, thereby achieving dual curing of the UV coating. This reduces the volume shrinkage and internal stress generated by the coating during the rapid light curing process under the irradiation of ultraviolet lamp 4, thus preventing the coating from becoming brittle or cracking due to stress concentration, thereby improving the toughness of the coating. When the coating is irradiated by ultraviolet lamp 4, the shielding cover 13 can shield the interior of the light curing chamber 2. To prevent light scattering and reduced light intensity that could affect curing, the shielding cover 13 can be removed from the light curing chamber 2 after curing, facilitating adjustments to the internal mechanism. Before the coating enters the light curing chamber 2, the reciprocating screw 6 is activated. The reciprocating screw 6 rotates within the top cover 5, driving the moving part 10 to move back and forth. The moving part 10 drives the rack 11 to slide back and forth within the top cover 5. The rack 11 drives the rotating shaft 14 to rotate back and forth via the half gear 12. The rotating shaft 14 then drives the ultraviolet lamp 4 to swing back and forth via the clamp frame 15. This allows ultraviolet light to repeatedly irradiate the coating surface at different angles, effectively eliminating uneven light intensity distribution caused by lamp fixing and avoiding the problem of insufficient curing in some areas and over-curing in others. When the light intensity of the ultraviolet lamp 4 drops significantly and it needs to be disassembled, the screw 17 is rotated forward on the support shaft 16, thereby pulling out the insertion shaft 19. At this time, the ultraviolet lamp 4 can be quickly pulled out of the frame 15 through the locking seat 18 and the insertion shaft 19, and then quickly removed from the device, ensuring the ease of replacement of the ultraviolet lamp 4. Short-term replacements can enhance the irradiation intensity of the coating. Conversely, when it is necessary to install the UV lamp 4, simply insert it into the frame 15 through the locking seat 18 and the insert shaft 19, then rotate the screw 17 to screw it backward and insert it into the insert shaft 19 to lock the UV lamp 4, thus completing the installation. This improves the ease of use of the device. Furthermore, when disassembling and installing the UV lamp 4, the angle of the rotating shaft 14 and the frame 15 is controlled by the rack 11 and the half gear 12, so that the front end of the screw 17 faces downward, which is convenient for operators and further improves the ease of use of the device.

[0022] like Figure 1-9As shown, based on the above embodiment, the material feeding control device 8 includes a feeding frame 81, which is fixedly connected to the lower surface of the mixing tank 3. A baffle plate 82 is slidably connected to the bottom surface of the inner wall of the mixing tank 3. A transverse sliding plate 83 is fixedly connected to the upper surface of the baffle plate 82. Opening the baffle plate 82 allows the paint to fall into the feeding frame 81 through the discharge chute and flow into the discharge frame 89. The discharge frame 89 distributes the paint evenly, facilitating subsequent falling onto the diaphragm. Closing the baffle plate 82 prevents continuous discharge and avoids paint accumulating into clumps that affect curing. The material feeding control device 8 also includes a trapezoidal bracket 84, which is fixedly connected to the side surface of the transverse sliding plate 83. A limiting square tube 85 is slidably connected to the inner surface of the front side of the mixing tank 3. A trapezoidal pusher 86 is fixedly connected to the rear end of the limiting square tube 85. A docking square tube 87 is fixedly connected to the front side of the mixing tank 3. A scraper 88 is fixedly connected to the bottom surface of the inner wall of the mixing tank 3. The discharge frame 89 is fixedly connected to the bottom of the discharge frame 81. The trapezoidal card seat 84 and the transverse plate 83 drive the baffle plate 82 to close. When the rack 11 moves away, the spring telescopic rod causes the transverse plate 83 to reset and drive the baffle plate 82 to open, realizing segmented discharge and avoiding accumulation caused by excessive discharge. The front end of the docking square tube 87 is fixedly connected to the rear side of the light curing chamber 2. The limiting square tube 85 is slidably connected to the inner surface of the docking square tube 87. The rack 11 is slidably connected to the inner surface of the docking square tube 87. The rear inclined surface of the trapezoidal push seat 86 abuts against the front inclined surface of the trapezoidal card seat 84. The bottom edge of the scraper 88 abuts against the upper surface of the baffle plate 82. A spring telescopic rod is provided between the transverse plate 83 and the inner wall side surface of the mixing box 3. The scraper 88 pushes the paint stuck on the baffle plate 82 into the discharge frame 81 to avoid the paint hardening and causing the baffle plate 82 to jam, ensuring smooth segmented discharge.

[0023] Working principle: When the mixed coating is discharged, the baffle plates 82 are opened on both sides, allowing the coating to fall from between the baffle plates 82 and the discharge chute at the bottom of the mixing tank 3 into the discharge frame 81. Then, it flows from the discharge frame 81 into the discharge frame 89. The discharge frame 89 distributes the flowing coating evenly, facilitating its subsequent uniform distribution onto the diaphragm. Once the discharge frame 89 is full, the two baffle plates 82 are closed, preventing the coating from flowing from the discharge chute into the discharge frame 81. This prevents the coating from continuously flowing downwards, causing it to clump together and affecting the curing effect. When the rack 11 slides backward within the connecting square tube 87, it inserts into the limiting square tube 85, pushing the limiting square tube 85 and the trapezoidal pusher 86 backward. As the trapezoidal pusher 86 moves backward, it pushes the trapezoidal holder 84 away from the inner wall side surface of the mixing tank 3 via the inclined surface. The trapezoidal holder 84 then moves backward via the transverse sliding plate. 83 drives the baffle plate 82 to slide away from the inner wall side surface of the mixing box 3, thereby closing the two baffle plates 82 together. When the rack 11 moves away from the limiting square tube 85 and the trapezoidal push seat 86, the trapezoidal card seat 84 and the transverse plate 83 lose their limiting position. The transverse plate 83 is elastically reset by the spring telescopic rod between it and the inner wall of the mixing box 3, thereby driving the baffle plate 82 to open. At this time, the paint can flow into the discharge frame 81, thus allowing the paint to flow into the discharge frame 81 in segments. This avoids the paint at the bottom being continuously pressed, causing the discharge to be too rapid and forming a pile. When the baffle plate 82 slides back and forth, its upper surface contacts the scraper 88. When the baffle plates 82 move away from each other, the scraper 88 pushes the paint stuck on the baffle plate 82 into the discharge frame 81, preventing the paint from hardening after sticking to the baffle plate 82 for a long time and causing the baffle plate 82 to jam. This makes the segmented discharge smoother.

[0024] like Figure 1-9As shown, based on the above embodiment, the uniform coating device 9 includes an extrusion head 91, which is fixedly connected to the lower surface of the discharge frame 89. A convex plate 92 is fixedly connected to the front and rear sides of the bottom of the light curing chamber 2. A spreading roller 93 is rotatably connected to the inner surface of the convex plate 92. The spreading roller 93 flattens the excessively stacked coating material, preventing concentration and thus curing difficulties. The reciprocating push of the rack 95 drives the transmission gear 94 and the spreading roller 93 to rotate reciprocally, increasing the contact area and preventing continuous adhesion at one end of the spreading roller 93, which affects the coating effect. The uniform coating device 9 also includes a transmission gear 94, which is fixedly connected to the circumferential surfaces at both ends of the spreading roller 93. Positioning components 96 are fixedly connected to the left and right sides of the light curing chamber 2. A rack 95 is slidably connected to the inner surface of the positioning component 96. A contact plate 97 is fixedly connected to the upper surface of the rack 95. An L-shaped connecting rod 98 is fixedly connected to the front end of the rack 11. A push plate 99 is fixedly connected to the rear end of the L-shaped connecting rod 98. A spring telescopic rod is provided between the front side of the contact plate 97 and the rear side of the positioning component 96. The rack 95 is meshed with the transmission gear 94. The convex plate 92 is fixedly connected to the upper surface of the conveyor 1. The rack 95 slides inside the positioning component 96. The spring telescopic rod resets the contact plate 97 and drives the rack 95 to slide forward, realizing the automatic reciprocating movement of the rack 95. This causes the spreading roller 93 to automatically reciprocate, continuously promoting the spreading effect and further preventing paint stacking.

[0025] Working principle: When the coating is extruded from the extruder 91 onto the diaphragm and conveyed into the curing chamber 2, the coating comes into contact with the spreading roller 93. Excessively piled coating is leveled by the spreading roller 93, further preventing the coating from becoming too concentrated and causing curing difficulties. The roller 93 reciprocates, pushing the rack 95 back and forth. The rack 95 drives the transmission gear 94 to rotate reciprocally, which in turn drives the spreading roller 93 to rotate reciprocally. This increases the contact area between the spreading roller 93 and the coating, preventing one end of the spreading roller 93 from continuously contacting the coating and becoming stuck, thus affecting the coating effect. Furthermore, the reciprocating rotation of the spreading roller 93 can throw some of the coating onto the diaphragm. The rack 11 moves back and forth... When the L-shaped connecting rod 98 moves back and forth, the L-shaped connecting rod 98 drives the push plate 99 to move back and forth. When the push plate 99 moves backward, it pushes the abutment plate 97 to move backward. The abutment plate 97 then drives the rack 95 to slide backward within the positioning member 96. When the push plate 99 moves forward, the abutment plate 97 moves forward and resets due to the elastic tension of the spring telescopic rod between it and the positioning member 96, thereby driving the rack 95 to slide forward. This causes the rack 95 to move back and forth automatically. The rack 95 then drives the spreading roller 93 to rotate back and forth automatically through the transmission gear 94, thereby continuously promoting the spreading effect of the coating and further preventing the coating from piling up.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0027] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-toughness dual-curing UV coating preparation apparatus, characterized in that, include: A conveyor (1) is fixedly connected to a light curing chamber (2) on its upper surface. A mixing box (3) is fixedly connected to the upper surface of the conveyor (1). An ultraviolet lamp (4) is installed inside the light curing chamber (2). A top cover (5) is fixedly connected to the upper surface of the light curing chamber (2). A reciprocating screw (6) is rotatably connected to the inner surface of the top cover (5). A thermosetting chamber (7) is fixedly connected to the upper surface of the conveyor (1). Material discharge control device (8), which is installed at the bottom of mixing box (3), is used to control the discharge flow rate of coating; A uniform coating device (9) is provided at the bottom of the light curing chamber (2) and is used to apply the coating evenly before curing.

2. The apparatus for preparing a high-toughness dual-curing UV coating according to claim 1, characterized in that, The photocuring chamber (2) includes: The moving part (10) is threadedly connected to the circumferential surface of the reciprocating screw (6), and a rack (11) is fixedly connected to the bottom end of the moving part (10). A rotating shaft (14) is rotatably connected to the left and right sides of the inner wall of the light curing chamber (2), and a half gear (12) is fixedly connected to the circumferential surface of the rotating shaft (14). A shielding cover (13) is snapped onto the front and rear sides of the light curing chamber (2).

3. The apparatus for preparing a high-toughness dual-curing UV coating according to claim 2, characterized in that, The photocuring chamber (2) also includes: Card frame (15), the card frame (15) is fixedly connected to one end of the rotating shaft (14) away from the inner wall of the light curing chamber (2), and a support shaft (16) is fixedly connected to the upper surface of the card frame (15). Screw (17), which is threaded to the inner surface of the support shaft (16); The card holder (18) is snapped onto the inner surface of the card frame (15), and the upper surface of the card holder (18) is fixedly connected to the insert shaft (19).

4. The apparatus for preparing a high-toughness dual-curing UV coating according to claim 3, characterized in that, The top left and right sides of the light curing chamber (2) are provided with sliding grooves, and the inner surface of the sliding groove is slidably connected to the bottom of the moving part (10). The rack (11) is slidably connected to the inner surfaces of the front and rear sides of the light curing chamber (2). The ultraviolet lamp (4) is fixedly connected to the lower surface of the card holder (18). The insert shaft (19) passes through the top surface of the inner wall of the card frame (15) and extends out of the upper surface of the card frame (15). The screw (17) and the inner surface of the insert shaft (19) are threadedly connected.

5. The apparatus for preparing a high-toughness dual-curing UV coating according to claim 4, characterized in that, The material feeding control device (8) includes: The feeding frame (81) is fixedly connected to the lower surface of the mixing box (3); A baffle plate (82) is slidably connected to the bottom surface of the inner wall of the mixing box (3), and a transverse plate (83) is fixedly connected to the upper surface of the baffle plate (82).

6. The apparatus for preparing a high-toughness dual-curing UV coating according to claim 5, characterized in that, The material feeding control device (8) also includes: A trapezoidal bracket (84) is fixedly connected to the side surface of the transverse plate (83); A limiting square tube (85) is slidably connected to the inner surface of the front side of the mixing box (3), and a trapezoidal push seat (86) is fixedly connected to the rear end of the limiting square tube (85). A square tube (87) is fixedly connected to the front side of the mixing box (3); A scraper (88) is fixedly connected to the bottom surface of the inner wall of the mixing box (3); The material discharge frame (89) is fixedly connected to the bottom end of the material feeding frame (81).

7. The apparatus for preparing a high-toughness dual-curing UV coating according to claim 6, characterized in that, The front end of the docking square tube (87) is fixedly connected to the rear side of the light curing chamber (2), the limiting square tube (85) is slidably connected to the inner surface of the docking square tube (87), the rack (11) is slidably connected to the inner surface of the docking square tube (87), the rear inclined surface of the trapezoidal push seat (86) abuts against the front inclined surface of the trapezoidal card seat (84), the bottom edge of the scraper (88) abuts against the upper surface of the baffle plate (82), and a spring telescopic rod is provided between the transverse plate (83) and the inner wall side surface of the mixing box (3).

8. The apparatus for preparing a high-toughness dual-curing UV coating according to claim 7, characterized in that, The uniform coating device (9) includes: An extrusion head (91) is fixedly connected to the lower surface of a discharge frame (89); A convex plate (92) is fixedly connected to the front and rear sides of the bottom of the light curing chamber (2), and a spreading roller (93) is rotatably connected to the inner surface of the convex plate (92).

9. The apparatus for preparing a high-toughness dual-curing UV coating according to claim 8, characterized in that, The uniform coating device (9) further includes: A transmission gear (94) is fixedly connected to the circumferential surfaces at both ends of the spreading roller (93); Positioning component (96), the positioning component (96) is fixedly connected to the left and right sides of the light curing chamber (2), and the inner surface of the positioning component (96) is slidably connected to a toothed rack (95). Abutting plate (97) is fixedly connected to the upper surface of rack two (95); L-shaped connecting rod (98), the L-shaped connecting rod (98) is fixedly connected to the front end of rack one (11), and the rear end of the L-shaped connecting rod (98) is fixedly connected to push plate (99). A spring telescopic rod is provided between the front side of the contact plate (97) and the rear side of the positioning member (96), the rack (95) and the transmission gear (94) are meshed and connected, and the convex plate (92) and the upper surface of the conveyor (1) are fixedly connected.

10. A method for preparing a high-toughness dual-curing UV coating preparation apparatus, using the high-toughness dual-curing UV coating preparation apparatus according to claim 9, characterized in that: Includes the following steps: Step 1: First, the diaphragm is laid on the conveyor (1), and the mixing box (3) extrudes the UV coating onto the diaphragm. The conveyor (1) drives the coating through the light curing chamber (2) and the heat curing chamber (7) in sequence to achieve double curing. Step 2: Then, the shield (13) prevents light from escaping, and the reciprocating screw (6) drives the moving part (10) and the rack (11) to slide. The half gear (12) drives the rotating shaft (14) to make the ultraviolet lamp (4) swing back and forth to irradiate evenly. Step 3: Subsequently, after prolonged use and with the light intensity of the ultraviolet lamp (4) weakening, rotate the screw (17) to pull out the insert shaft (19), and quickly pull the ultraviolet lamp (4) out of the frame (15) through the locking seat (18) and the insert shaft (19) to complete the disassembly and replacement. Step 4: Finally, insert the new UV lamp (4) into the card frame (15) through the card holder (18) and the insert shaft (19), and turn the screw (17) to lock and complete the installation. Control the angle through the rack (11) and the half gear (12) so that the front end of the screw (17) faces down to make the installation more convenient.

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