PVC wallboard film uv coating curing device and curing method

Abstract

The application discloses a PVC wallboard film UV coating curing device and a curing method, and relates to the technical field of UV coating curing.The device comprises a mounting plate, a raw material roller, a clamping component, a coating component, a stretching component and a UV lamp arranged in sequence on the mounting plate along a conveying direction; the clamping component is used for clamping and driving the PVC wallboard film; the coating component is internally provided with an adjustable angle inclined scraper; the coating thickness is adjusted by adjusting the angle of the inclined scraper to control the coating discharge amount; the stretching component comprises a pressing roller and is used for applying a pulling tension to the coated film material, so that the UV coating is fully flowed and uniformly cured by the UV lamp.The PVC wallboard film UV coating curing device can effectively avoid the cracking problem in the UV coating curing process, improve the coating uniformity and the quality of finished products, and flexibly adjust the coating thickness through the inclined scraper, so that different processing requirements can be adapted, the operation is simple, and the production flexibility is high.

Description

Technical Field

[0001] This invention relates to the field of UV coating curing technology, and more specifically, to a UV coating curing device and curing method for PVC wall panel films. Background Technology

[0002] PVC wall panel film is a commonly used surface decorative film material in the wall panel decoration field. It usually needs to be coated with a UV-cured coating to improve the wear resistance, scratch resistance, corrosion resistance and other properties of the film material and extend its service life.

[0003] In existing technologies, UV coating processing of PVC wall panel films mostly adopts the method of direct coating and immediate curing, which has the following defects: First, the coating is not homogenized after coating, which easily leads to uneven thickness and local accumulation. Moreover, the film tension is insufficient during the curing process, and the coating is prone to cracking due to internal stress, affecting the appearance and protective performance of the finished product. Second, the coating thickness is inconvenient to adjust. It usually requires changing the coating roller or adjusting the paint ratio to change the coating thickness. The operation is cumbersome and it is difficult to quickly adapt to different processing requirements, resulting in poor production flexibility.

[0004] In view of this, we propose a UV coating curing device and curing method for PVC wall panel film. Summary of the Invention

[0005] The purpose of this invention is to provide a UV coating curing device and curing method for PVC wall panel films to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides a UV coating curing device for PVC wall panel film, including a mounting plate, wherein a raw material roller, a clamping component, a coating component, a stretching component, and a UV lamp are sequentially arranged on the mounting plate along the conveying direction of the PVC wall panel film. The clamping component is used to clamp the PVC wall panel film and provide a conveying driving force to realize the continuous transmission of the film material; The coating component is used to apply UV-curable coating to the surface of PVC wall panel film. The coating component is equipped with an inclined scraper. The flow rate of UV coating is controlled by adjusting the tilt angle of the inclined scraper to achieve coating processing of different thicknesses. The stretching component includes a pressing roller, which is used to apply tension to the coated PVC wall panel film to ensure that the uncured UV coating flows fully and evenly, and to avoid cracking defects during the coating curing process.

[0007] As a further improvement to this technical solution, the clamping component includes a clamping bracket fixedly mounted on the mounting plate. The clamping bracket has a sliding groove, and a sliding member is slidably disposed in the sliding groove. An upper clamping roller is rotatably connected to the sliding member. A fixed bracket is fixedly disposed at the bottom of the clamping bracket, and a lower clamping roller is rotatably connected to the fixed bracket. The upper clamping roller and the lower clamping roller cooperate to clamp the PVC wall panel film.

[0008] As a further improvement to this technical solution, a spring is provided between the top of the sliding member and the top of the inner wall of the sliding groove. The spring is used to provide downward elastic pressure to the upper clamping roller, so that the upper clamping roller and the lower clamping roller can elastically clamp PVC wall panel films of different thicknesses.

[0009] As a further improvement to this technical solution, the coating component includes a raw material box with a feeding hole at the bottom. A coating roller is rotatably connected to the bottom of the raw material box via a rotating bracket. Several material storage grooves are provided on the surface of the coating roller. The UV coating falls through the feeding hole onto the surface of the coating roller and is coated onto the surface of the PVC wall panel film as the coating roller rotates.

[0010] As a further improvement to this technical solution, the inclined scraper is rotatably mounted on the unloading side of the raw material box, and the bottom end of the inclined scraper is in contact with the roller surface of the paint roller. By rotating and adjusting the inclination angle of the inclined scraper, the gap between the inclined scraper and the paint roller is changed, thereby controlling the amount of paint carried on the surface of the paint roller.

[0011] As a further improvement to this technical solution, a sliding pressing plate is slidably arranged inside the raw material box, and a blocking plate is arranged below the sliding pressing plate. The blocking plate is used to block part of the discharge hole and works with the inclined scraper to adjust the discharge amount.

[0012] As a further improvement to this technical solution, the stretching component includes a connecting bracket, which is fixedly mounted on the mounting plate. A rotating arm is hinged to the connecting bracket, and the pressing roller is rotatably connected to the end of the rotating arm. A rotating electric telescopic rod is hinged to the connecting bracket, and the output end of the rotating electric telescopic rod is hinged to the rotating arm through a rotating connector.

[0013] As a further improvement to this technical solution, the connecting bracket is provided with an arc-shaped through groove, and the rotating arm swings along the trajectory of the arc-shaped through groove. The swinging of the rotating arm is driven by the extension and retraction of the rotating electric telescopic rod, thereby adjusting the pressing pressure and tensile tension of the pressing roller on the PVC wall panel film.

[0014] As a further improvement to this technical solution, the UV lamp is set on the discharge side of the stretching component, and the irradiation surface of the UV lamp faces the coating surface of the PVC wall panel film, for irradiating and curing the UV coating after stretching and homogenizing.

[0015] Another aspect of the present invention provides a method for curing a UV coating on a PVC wall panel, which is implemented using the above-mentioned apparatus and includes the following steps: S1. Feeding transmission: The PVC wall panel film raw material roll is installed on the raw material roller, the end of the film is pulled through the clamping component, and the film is clamped and driven to move continuously along the conveying direction by the clamping component. S2. Coating Thickness Adjustment: According to the target coating thickness, adjust the tilt angle of the inclined scraper in the coating component to control the flow rate of UV coating, so that the coating roller can evenly coat the UV coating of the corresponding thickness onto the film surface. S3, Stretching and Uniforming: The coated film enters the stretching component, and the pressure roller applies tension to the film, so that the uncured UV coating flows fully under tension to form a uniform and flat coating layer. S4, UV Curing: The stretched and homogenized film material is conveyed to the UV lamp, and the UV coating is quickly cured by UV lamp irradiation, completing the UV coating curing process of PVC wall panel film.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention achieves stable clamping and transmission of PVC wall panel film through clamping components. In conjunction with the pressing roller of the stretching component, tension is applied to the coated film material, which enables the uncured UV coating to flow and spread fully under tension, improving the uniformity of the coating. At the same time, it can offset the internal stress during the curing process, effectively avoid the coating cracking defects, and significantly improve the quality of the finished product.

[0017] 2. The present invention features an adjustable-angle tilting scraper in the coating component. By changing the tilting angle of the tilting scraper, the amount of coating material fed and the amount of material carried by the coating roller can be flexibly controlled. Different thickness coatings can be processed quickly without changing parts. The operation is simple, highly adaptable, and can meet diverse production needs.

[0018] 3. The clamping component of this invention adopts an elastic clamping structure, which can be adapted to the processing of PVC wall panel films of different thicknesses and has a wide range of applications; the tensioning component is driven by an electric telescopic rod to adjust the tension, which can flexibly adjust the pulling force according to different coating characteristics and coating thickness, with high adjustment accuracy and flexible use. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure assembly of the present invention; Figure 2 This is a schematic diagram of the structure of the stretching component of the present invention; Figure 3 This is a schematic diagram of the structure of the clamping component of the present invention; Figure 4 This is a schematic diagram of the structure of the coating component of the present invention; Figure 5 This is a schematic diagram of the barrier plate structure of the present invention; Figure 6 This is a schematic diagram of the workflow of the present invention.

[0020] The labels in the diagram represent the following: 1. Mounting plate; 2. Raw material roller; 3. Clamping component; 301. Clamping bracket; 302. Upper clamping roller; 303. Sliding groove; 304. Lower clamping roller; 305. Fixed bracket; 306. Spring; 307. Sliding component; 4. Coating component; 401. Raw material box; 402. Discharge hole; 403. Rotating shaft; 404. Coating roller; 405. Material storage groove; 406. Inclined scraper; 407. Rotating bracket; 408. Sliding pressing plate; 409. Baffle plate; 5. UV lamp; 6. Stretching component; 601. Pressing roller; 602. Arc-shaped groove; 603. Connecting bracket; 604. Rotating electric telescopic rod; 605. Rotating arm; 606. Rotating connecting component. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will now be clearly and completely described with reference to the accompanying drawings. Example

[0022] Please see Figures 1-6 As shown, this embodiment provides a UV coating curing device for PVC wall panel film, including a mounting plate 1. The mounting plate 1 is provided with a raw material roller 2, a clamping component 3, a coating component 4, a stretching component 6, and a UV lamp 5 arranged sequentially along the conveying direction of the PVC wall panel film.

[0023] The raw material roller 2 is rotatably mounted on the feed end of the mounting plate 1 and is used to load PVC wall panel film raw material rolls to provide a substrate for processing.

[0024] The clamping component 3 is used to clamp the PVC wall panel film and provide conveying driving force to realize continuous transmission of the film material. Specifically, the clamping component 3 includes a clamping bracket 301 fixedly mounted on the mounting plate 1. The clamping bracket 301 has a sliding groove 303, and a sliding element 307 is slidably mounted in the sliding groove 303. An upper clamping roller 302 is rotatably connected to the sliding element 307 via a rotating shaft. A fixed bracket 305 is fixedly mounted at the bottom of the clamping bracket 301, and a lower clamping roller 304 is rotatably connected to the fixed bracket 305. The upper clamping roller 302 and the lower clamping roller 304 cooperate to clamp the PVC wall panel film. The lower clamping roller 304 can be connected to a drive motor to provide conveying power through rotation, driving the film material forward.

[0025] Furthermore, a spring 306 is provided between the top of the sliding member 307 and the top of the inner wall of the sliding groove 303. The spring 306 is used to provide downward elastic pressure to the upper clamping roller 302, so that the upper clamping roller 302 and the lower clamping roller 304 can elastically clamp PVC wall panel films of different thicknesses, improve the adaptability of the device, and at the same time ensure stable clamping force and prevent the film material from slipping.

[0026] The coating component 4 is used to apply UV-curable coating to the surface of the PVC wall panel film. The coating component 4 is equipped with an inclined scraper 406. The flow rate of the UV coating is controlled by adjusting the tilt angle of the inclined scraper 406 to achieve coating processing of different thicknesses.

[0027] Specifically, the coating component 4 includes a raw material box 401, which is fixed above the mounting plate 1 by a bracket. The bottom of the raw material box 401 has a discharge hole 402. A coating roller 404 is rotatably connected to the bottom of the raw material box 401 by a rotating bracket 407. The surface of the coating roller 404 has several storage grooves 405. The UV coating falls onto the surface of the coating roller 404 through the discharge hole 402. Some of the coating is temporarily stored in the storage grooves 405 and is evenly coated onto the surface of the PVC wall panel film as the coating roller 404 rotates.

[0028] An inclined scraper 406 is rotatably mounted on the unloading side of the raw material box 401. The bottom end of the inclined scraper 406 is in contact with the roller surface of the coating roller 404. By rotating the scraper 406, the tilt angle is adjusted, changing the gap between the scraper 406 and the coating roller 404 to control the amount of coating on the surface of the coating roller 404. When the inclined scraper 406 rotates towards the coating roller 404, the gap decreases, the amount of coating on the coating roller 404 decreases, and the coating thickness decreases. When the inclined scraper 406 rotates away from the coating roller 404, the gap increases, the amount of coating on the coating roller 404 increases, and the coating thickness increases, thus achieving flexible adjustment of the coating thickness.

[0029] Furthermore, a sliding pressing plate 408 is slidably installed inside the raw material box 401, and a blocking plate 409 is installed below the sliding pressing plate 408. The blocking plate 409 is used to block part of the discharge hole 402, and works with the inclined scraper 406 to adjust the discharge amount, thereby improving the accuracy and range of thickness adjustment. The sliding pressing plate 408 can be driven to rise and fall by a lead screw or electric push rod, which in turn moves the blocking plate 409 up and down, changing the conduction area of ​​the discharge hole 402.

[0030] The stretching component 6 includes a pressing roller 601, which is used to apply tension to the coated PVC wall panel film to ensure that the uncured UV coating flows fully and evenly, and to avoid cracking defects during the coating curing process.

[0031] Specifically, the stretching component 6 includes a connecting bracket 603, which is fixedly mounted on the mounting plate 1. A rotating arm 605 is hinged to the connecting bracket 603, and the pressing roller 601 is rotatably connected to the end of the rotating arm 605. A rotating electric telescopic rod 604 is hinged to the connecting bracket 603, and the output end of the rotating electric telescopic rod 604 is hinged to the rotating arm 605 through a rotating connector 606.

[0032] Furthermore, the connecting bracket 603 has an arc-shaped through groove 602. The hinge shaft of the rotating arm 605 swings along the trajectory of the arc-shaped through groove 602. The swinging of the rotating arm 605 is driven by the extension and retraction of the electric telescopic rod 604, adjusting the pressing pressure and tension of the pressing roller 601 on the PVC wall panel film. When the electric telescopic rod 604 extends, it pushes the rotating arm 605 to swing downward, and the pressing roller 601 presses down on the film material, increasing the film tension; conversely, the tension decreases, thus adapting to different coating characteristics and processing requirements.

[0033] UV lamp 5 is located on the discharge side of the stretching component 6, with its irradiation surface facing the coating surface of the PVC wall panel film. It is used to irradiate and cure the UV coating after the material has been stretched and homogenized. UV lamp 5 can be a mercury lamp or an LED UV lamp, providing sufficient curing energy to ensure rapid curing and shaping of the coating. Example

[0034] like Figure 6 As shown, this embodiment provides a method for curing a UV coating on a PVC wall panel, which is implemented using the above-mentioned apparatus and includes the following steps: S1. Feeding transmission: The PVC wall panel film raw material roll is installed on the raw material roller 2. The end of the film material is pulled through the upper clamping roller 302 and the lower clamping roller 304 of the clamping component 3. The spring 306 pushes the upper clamping roller 302 to press down and clamp the film material. The lower clamping roller 304 rotates through the drive motor, driving the film material to move continuously along the conveying direction. S2, Coating Thickness Adjustment: According to the target coating thickness, rotate and adjust the tilt angle of the tilt scraper 406 in the coating component 4. At the same time, the height of the sliding pressing plate 408 can be adjusted to change the conduction area of ​​the feeding hole 402, and jointly control the feeding flow rate of UV coating and the amount of material carried by the coating roller 404, so that the coating roller 404 can evenly coat the UV coating of the corresponding thickness on the film surface. S3. Stretching and Uniforming: The coated film enters the stretching component 6. According to the viscosity of the coating and the target coating thickness, the electric telescopic rod 604 is controlled to extend and retract, the rotating arm 605 is driven to swing, and the pressing amount of the pressing roller 601 is adjusted to apply appropriate tension and pulling force to the film, so that the uncured UV coating can flow and spread fully under tension to form a uniform and flat coating layer, while pre-releasing the internal stress of the coating. S4, UV Curing: The stretched and homogenized film is conveyed to the area under UV lamp 5. The UV coating is rapidly cross-linked and cured by the ultraviolet light emitted by UV lamp 5, completing the UV coating curing process of the PVC wall panel film. The finished product is then rolled up. Example

[0035] This embodiment is an improvement on embodiment 1. The improvement is that the mounting plate 1 is further provided with a secondary stretching component 7 and a pre-curing UV lamp 8. The pre-curing UV lamp 8 is disposed between the stretching component 6 and the secondary stretching component 7. The UV lamp 5 is disposed on the discharge side of the secondary stretching component 7 as a final curing UV lamp.

[0036] The secondary tensioning component 7 has the same structure as the tensioning component 6, both including a pressing roller 601, a connecting bracket 603, a rotating electric telescopic rod 604, and a rotating arm 605; and the pressing amount of the pressing roller 601 of the secondary tensioning component 7 is greater than that of the pressing roller 601 of the tensioning component 6, forming a gradient-increasing tensioning structure.

[0037] The curing method in this embodiment includes the following steps: S1, feeding transmission: Same as step S1 in Example 1, the PVC wall panel film is stably conveyed by the clamping component 3; S2. Coating thickness adjustment: Adjust the tilt scraper 406 to the large gap state to obtain a thick UV coating with a thickness of 80~120μm. S3, First-stage stretching and pre-uniforming: The coated film material first passes through the stretching component 6 and is stretched with a small tension to allow the thick coating to initially flow and spread out, eliminating coating marks. S4. Pre-curing and shaping: The film material after the first stage of stretching is placed under the pre-curing UV lamp 8 and surface-cured with ultraviolet light at 30% of the rated power to initially cross-link and shape the coating surface, avoiding sagging and thickness deviation during subsequent stretching. S5, Secondary Stretching and Homogenization: The pre-cured film material enters the secondary stretching component 7 and is stretched under greater tension to further homogenize the incompletely cured coating and fully release the internal stress of the coating. S6. Final curing and molding: The film material after secondary stretching is placed under the final curing UV lamp 5 and irradiated with full-power ultraviolet light to completely cure the coating and complete the thick coating processing.

[0038] This embodiment is applicable to the processing of high-thickness UV coatings. By combining two-stage stretching with step-by-step curing process, it not only ensures the overall uniformity of the thick coating, but also avoids the problem of sagging during the stretching process. At the same time, it further reduces the risk of cracking caused by curing internal stress, thus expanding the applicable working conditions of the device. Example

[0039] This embodiment is an improvement on embodiment 1. The improvement is that it also includes an automatic adjustment control component, which includes a laser thickness sensor 901, a controller 902 and a servo adjustment motor 903. The laser thickness sensor 901 is disposed between the coating component 4 and the stretching component 6, with its detection end facing the coating surface of the PVC wall panel film, and is used to detect the actual thickness of the coating after coating in real time; the servo adjustment motor 903 is fixedly installed on the side wall of the raw material box 401, and its output shaft is connected to the rotation shaft of the inclined scraper 406 for transmission, and is used to precisely drive the inclined scraper 406 to rotate and adjust the angle; the controller 902 is electrically connected to the laser thickness sensor 901, the servo adjustment motor 903, and the rotating electric telescopic rod 604 respectively.

[0040] The working process of this embodiment is as follows: The target coating thickness and corresponding tension parameters are preset in the controller 902. The laser thickness sensor 901 collects coating thickness data in real time and transmits it to the controller 902. The controller 902 compares the actual thickness with the target thickness. If the actual thickness is too large, it controls the servo adjustment motor 903 to drive the tilt scraper 406 to reduce the gap with the coating roller 404 and reduce the coating thickness. If the actual thickness is too small, it controls the gap to increase the coating thickness and realizes closed-loop automatic adjustment of coating thickness. At the same time, the controller 902 can automatically match the extension and retraction of the rotating electric telescopic rod 604 according to the real-time coating thickness and adjust the tension of the pressing roller 601 to ensure consistent uniformity of material distribution under different thicknesses.

[0041] This embodiment enables online detection and automatic precise adjustment of coating thickness, eliminating the need for manual adjustment, reducing human error, improving processing accuracy and production efficiency, and making it suitable for large-scale continuous production scenarios.

[0042] Comparative Example 1 This comparative example uses a conventional PVC wall panel film UV coating curing device, including a raw material roller, a fixed-gap coating roller and a UV curing lamp. The stretching component 6 is not provided. The baffle of the coating roller is a fixed installation structure and the gap cannot be adjusted. The coated PVC wall panel film is directly conveyed to the UV curing lamp for curing.

[0043] The curing method of this comparative example is as follows: the PVC wall panel film is pulled under the coating roller for fixed thickness coating. After coating, there is no pulling and even material process. The film is directly irradiated and cured by UV curing lamp, and then rolled up to obtain the finished product.

[0044] To verify the technical effects of the present invention, comparative experiments were conducted using the apparatus and method of Examples 1, 2, 3, and 4 and Comparative Example 1, under the same substrate, the same UV coating, and the same total curing energy. The test results are shown in the table below: As can be seen from the table above, compared with Comparative Example 1 of the prior art, the coating thickness uniformity of each embodiment of the present invention is significantly improved, the curing cracking rate is greatly reduced, and the coating thickness adjustment convenience is greatly improved, which can effectively ensure the quality of finished products and production efficiency.

Claims

1. A UV coating curing device for PVC wall panel film, characterized in that: The installation includes a mounting plate (1), on which a raw material roller (2), a clamping component (3), a coating component (4), a stretching component (6), and a UV lamp (5) are arranged sequentially along the conveying direction of the PVC wall panel film. The clamping component (3) is used to clamp the PVC wall panel film and provide a conveying driving force to realize the continuous transmission of the film material; The coating component (4) is used to coat the surface of the PVC wall panel film with UV-cured coating. The coating component (4) is provided with an inclined scraper (406). The flow rate of the UV coating is controlled by adjusting the tilt angle of the inclined scraper (406) to achieve coating processing of different thicknesses. The stretching component (6) includes a pressing roller (601), which is used to apply tension to the coated PVC wall panel film so that the uncured UV coating flows evenly and avoids cracking defects during the coating curing process.

2. The PVC wall panel film UV coating curing device according to claim 1, characterized in that: The clamping component (3) includes a clamping bracket (301) fixedly mounted on the mounting plate (1). A sliding groove (303) is provided on the clamping bracket (301). A sliding member (307) is slidably arranged in the sliding groove (303). An upper clamping roller (302) is rotatably connected to the sliding member (307). A fixed bracket (305) is fixedly mounted at the bottom of the clamping bracket (301). A lower clamping roller (304) is rotatably connected to the fixed bracket (305). The upper clamping roller (302) and the lower clamping roller (304) cooperate to clamp the PVC wall panel film.

3. The PVC wall panel film UV coating curing device according to claim 2, characterized in that: A spring (306) is provided between the top of the sliding member (307) and the top of the inner wall of the sliding groove (303). The spring (306) is used to provide downward elastic pressure to the upper clamping roller (302), so that the upper clamping roller (302) and the lower clamping roller (304) can elastically clamp PVC wall panel films of different thicknesses.

4. The PVC wall panel film UV coating curing device according to claim 1, characterized in that: The coating component (4) includes a raw material box (401), with a feeding hole (402) at the bottom of the raw material box (401). A coating roller (404) is rotatably connected to the bottom of the raw material box (401) via a rotating bracket (407). The coating roller (404) has several material storage grooves (405) on its roller surface. The UV coating falls through the feeding hole (402) onto the surface of the coating roller (404) and is coated onto the surface of the PVC wall panel film as the coating roller (404) rotates.

5. The PVC wall panel film UV coating curing device according to claim 4, characterized in that: The inclined scraper (406) is rotatably mounted on the feeding side of the raw material box (401). The bottom end of the inclined scraper (406) is in contact with the roller surface of the paint roller (404). By rotating and adjusting the tilt angle of the inclined scraper (406), the gap between the inclined scraper (406) and the paint roller (404) is changed, so as to control the amount of paint carried on the surface of the paint roller (404).

6. The PVC wall panel film UV coating curing device according to claim 5, characterized in that: The raw material box (401) is slidably provided with a sliding pressing plate (408), and a blocking plate (409) is provided below the sliding pressing plate (408). The blocking plate (409) is used to block part of the feeding hole (402) and works with the inclined scraper (406) to adjust the feeding amount.

7. The PVC wall panel film UV coating curing device according to claim 1, characterized in that: The stretching component (6) includes a connecting bracket (603), which is fixedly mounted on the mounting plate (1). A rotating arm (605) is hinged to the connecting bracket (603), and the pressing roller (601) is rotatably connected to the end of the rotating arm (605). A rotating electric telescopic rod (604) is hinged to the connecting bracket (603), and the output end of the rotating electric telescopic rod (604) is hinged to the rotating arm (605) through a rotating connector (606).

8. The PVC wall panel film UV coating curing device according to claim 7, characterized in that: The connecting bracket (603) has an arc-shaped through groove (602). The rotating arm (605) swings along the trajectory of the arc-shaped through groove (602). The rotating arm (605) swings by rotating the electric telescopic rod (604) to adjust the pressing pressure and tension of the pressing roller (601) on the PVC wall panel film.

9. The PVC wall panel film UV coating curing device according to claim 1, characterized in that: The UV lamp (5) is located on the discharge side of the stretching member (6), and the irradiation surface of the UV lamp (5) faces the coating surface of the PVC wall panel film, and is used to irradiate and cure the UV coating after stretching and uniformizing the material.

10. A method for curing a UV coating of a PVC wall panel film based on the apparatus according to any one of claims 1-9, characterized in that, Includes the following steps: S1, feeding transmission: the PVC wall panel film raw material roll is installed on the raw material roller (2), the end of the film is pulled through the clamping component (3), the clamping component (3) clamps and drives the film to move continuously along the conveying direction; S2, Coating Thickness Adjustment: According to the target coating thickness, adjust the tilt angle of the tilt scraper (406) in the coating component (4) to control the flow rate of UV coating, so that the coating roller (404) can uniformly coat the UV coating of the corresponding thickness on the film surface. S3, Stretching and Uniforming: The coated film enters the stretching component (6), and the pressure roller (601) applies tension to the film, so that the uncured UV coating flows fully under tension to form a uniform and flat coating layer. S4, UV curing: The stretched and homogenized film is transported to the UV lamp (5) and the UV coating is quickly cured by the UV lamp (5) to complete the UV coating curing process of PVC wall panel film.

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