A dead angle-free decorative film flow coating device
By adjusting the angle of the coating nozzle and the discharge width, combined with the adaptive adjustment of the roller pressing assembly, the problems of coating dead corners and unevenness in traditional decorative film coating devices have been solved, achieving high-quality and flexible coating of decorative films.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN ZHAOCHUAN DECORATION MATERIALS TECHNOLOGY DEVELOPMENT CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-26
AI Technical Summary
Traditional decorative film coating equipment has a fixed nozzle angle and discharge width, which cannot adapt to complex-shaped decorative films, resulting in problems such as coating dead corners and uneven coating.
By employing adjustment and roller pressure components, the nozzle angle is adjusted via a gear assembly, the discharge width is adjusted via a sealing block, and the roller pressure is adaptively adjusted via an elastic component, thereby achieving uniform coating spraying and thickness control.
It enables uniform spraying of coatings onto decorative films with complex shapes, improving coating quality and applicability, and meeting the production needs of decorative films of different specifications.
Smart Images
Figure CN224405578U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of decorative film coating technology, specifically a decorative film coating device with no dead angles. Background Technology
[0002] Decorative films, widely used in architectural decoration, furniture manufacturing, and electronic product casing decoration, are crucial materials whose surface coating quality directly impacts the product's appearance, durability, and market competitiveness. Spray coating, a common surface treatment process for decorative films, offers advantages such as high coating efficiency and good coating uniformity. It can evenly spray paint onto the surface of the decorative film, forming a thin film with both protective and decorative functions, thereby enhancing the film's performance and aesthetics.
[0003] In traditional decorative film coating devices, the coating nozzles are usually fixedly installed, and their spray angle cannot be adjusted according to the shape of the decorative film and actual needs. However, when dealing with decorative films with complex shapes, such as those with grooves, corners, or curved surfaces, the fixed-angle coating nozzles cannot evenly spray the paint onto these areas, resulting in coating dead corners. Furthermore, the nozzle discharge width is generally fixed and cannot be flexibly adjusted according to different coating requirements. Therefore, this utility model provides a decorative film coating device without dead corners. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a decorative film coating device without dead angles. It solves the problem that in traditional decorative film coating devices, the coating nozzle is usually fixedly installed, and its spray angle cannot be adjusted according to the shape of the decorative film and actual needs. However, when dealing with decorative films with complex shapes, such as those with grooves, corners, or curved surfaces, the fixed-angle coating nozzle cannot evenly spray the coating onto these areas, resulting in coating dead angles. Furthermore, the nozzle discharge width is generally fixed and cannot be flexibly adjusted according to different coating requirements.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a decorative film coating device with no dead angles, comprising a mounting base, wherein a coating mechanism for the decorative film is provided on the mounting base, and the coating mechanism includes:
[0006] The adjustment assembly includes a U-shaped support housing fixed to the upper surface of the mounting base. A support shaft is rotatably connected through the horizontal direction of the support housing. A gear assembly for rotational adjustment is provided on the outer wall of the support shaft. A cavity tube is fixed to one end of the support shaft extending into the support housing. A spray nozzle is fixed to the lower end of the cavity tube. A sealing block connected by a push assembly is provided inside the spray nozzle.
[0007] The rolling assembly includes a second electric push rod that is vertically fixed through the upper end of the supporting housing. The telescopic end of the second electric push rod is fixed with a mounting bracket. The mounting bracket has an inclined plate connected by an elastic component inside. One end of the inclined plate is provided with a rotatable rolling shaft.
[0008] Preferably, the upper end face of the mounting base is provided with two take-up shafts for conveying decorative film, and the take-up shafts are respectively located on both sides of the supporting shell.
[0009] Preferably, the gear assembly includes a slide rail bracket that supports the side wall of the housing, a screw is rotatably connected inside the slide rail bracket, a slider is slidably connected to the inner wall of the slide rail bracket, the slider is threadedly connected to the screw, a gear rod is fixed to the lower end of the slider, and a transmission gear that meshes with the gear rod is fixed to the outer wall of the support shaft.
[0010] Preferably, the push assembly includes a first electric push rod fixed to the side wall of the cavity tube, a connecting block fixed to the telescopic end of the first electric push rod, a sealing block located on the inner wall of the spray nozzle in a sliding connection, and one end of the sealing block being fixedly connected to the connecting block.
[0011] Preferably, a material box is fixed to the top of the supporting shell, and a flexible hose is provided on one side of the material box, with the output end of the flexible hose connected to the cavity tube.
[0012] Preferably, the elastic component includes a connecting shaft rotatably connected inside the mounting bracket, the inclined plate is located on the outer wall of the connecting shaft, a pair of springs are provided on the upper end face of the inclined plate, and the other end of the springs is connected to the mounting bracket.
[0013] Beneficial effects
[0014] This invention provides a decorative film coating device with no dead angles. Compared with the prior art, it has the following advantages:
[0015] Firstly, the rotation of the screw in this invention causes the slider to move horizontally along the slide rail support. The movement of the slider drives the gear rod to move. Because the gear rod is meshed with the transmission gear, the transmission gear will rotate accordingly, thereby driving the support shaft to rotate. The rotation of the support shaft causes the cavity tube and the coating nozzle at its lower end to rotate, realizing the adjustment of the coating nozzle angle. Through the transmission of the gear assembly, the angle of the coating nozzle can be precisely adjusted, so that the paint can be sprayed at a suitable angle onto various parts of the decorative film, including some complex-shaped dead corner areas. This effectively solves the problem of coating dead corners in traditional coating devices and improves the uniformity and quality of coating.
[0016] Secondly, this utility model activates the first electric push rod, and the telescopic end of the first electric push rod drives the connecting block to move. The connecting block then drives the sealing block to slide on the inner wall of the coating nozzle. By controlling the position of the sealing block, the discharge width of the coating nozzle can be changed, thereby meeting the requirements of different coating thicknesses and precisions. This allows the discharge width of the coating nozzle to be adjusted according to actual production needs, increasing the applicability and flexibility of the device and enabling it to meet the production of decorative film coatings of different specifications and requirements. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the hollow tube structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the sealing block structure of this utility model;
[0020] Figure 4 This is a schematic diagram of the inclined plate structure of this utility model.
[0021] In the diagram: 1. Mounting base; 2. Rewinding shaft; 3. Support housing; 301. Material box; 302. Hoses; 303. Support shaft; 304. Hollow tube; 4. Transmission gear; 401. Slide rail bracket; 402. Screw; 403. Slider; 404. Gear rod; 5. Coating nozzle; 501. Sealing block; 502. First electric push rod; 503. Connecting block; 6. Second electric push rod; 601. Mounting bracket; 602. Connecting shaft; 603. Inclined plate; 604. Roller shaft; 605. Spring. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 This utility model provides a technical solution: a decorative film coating device without dead angles, including a mounting base 1, on which a coating mechanism for the decorative film is provided, the coating mechanism including:
[0024] The adjustment assembly includes a U-shaped support housing 3 fixed to the upper surface of the mounting base 1. A support shaft 303 is rotatably connected through the support housing 3 in the horizontal direction. A gear assembly for rotation adjustment is provided on the outer wall of the support shaft 303. A cavity tube 304 is fixed to one end of the support shaft 303 extending into the support housing 3. A spray nozzle 5 is fixed to the lower end of the cavity tube 304. A sealing block 501 connected by a push assembly is provided inside the spray nozzle 5.
[0025] The rolling assembly includes a second electric push rod 6 that is vertically fixed through the upper end of the supporting housing 3. The telescopic end of the second electric push rod 6 is fixed with a mounting bracket 601. The mounting bracket 601 is provided with an inclined plate 603 connected by an elastic component. One end of the inclined plate 603 is provided with a rotatable rolling shaft 604.
[0026] In a preferred embodiment, the upper end face of the mounting base 1 is provided with two take-up shafts 2 for conveying decorative film, and the take-up shafts 2 are respectively located on both sides of the support housing 3, for conveying the decorative film into the interior of the support housing 3 and then outputting it.
[0027] In a preferred embodiment, the gear assembly includes a slide rail bracket 401 fixed to the side wall of the supporting housing 3. A screw 402 is rotatably connected inside the slide rail bracket 401, and a slider 403 is slidably connected to the inner wall of the slide rail bracket 401. The slider 403 is threadedly connected to the screw 402, and a gear rod 404 is fixed to the lower end of the slider 403. A transmission gear 4, meshing with the gear rod 404, is fixed to the outer wall of the support shaft 303. When the angle of the coating nozzle 5 needs to be adjusted to accommodate the coating requirements of decorative films of different shapes, the screw 402 is rotated by handwheel. Since the slider 403 is threadedly connected to the screw 402 and slides on the inner wall of the slide rail bracket 401, the screw 402... Rotation 2 causes the slider 403 to move horizontally along the slide rail bracket 401. The movement of the slider 403 drives the gear rod 404 to move. Because the gear rod 404 is meshed with the transmission gear 4, the transmission gear 4 will rotate accordingly, thereby driving the support shaft 303 to rotate. The rotation of the support shaft 303 causes the cavity tube 304 and the coating nozzle 5 at its lower end to rotate, realizing the adjustment of the angle of the coating nozzle 5. Through the transmission of the gear assembly, the angle of the coating nozzle 5 can be precisely adjusted, so that the paint can be sprayed at a suitable angle onto various parts of the decorative film, including some complex-shaped dead corner areas. This effectively solves the problem of coating dead corners in traditional coating devices and improves the uniformity and quality of coating.
[0028] In a preferred embodiment, a material box 301 is fixed to the top of the supporting shell 3, and a flexible hose 302 is provided on one side of the material box 301. The output end of the flexible hose 302 is connected to the cavity tube 304 for flow communication and output through the pump body. The pushing assembly includes a first electric push rod 502 fixed to the side wall of the cavity tube 304. A connecting block 503 is fixed to the telescopic end of the first electric push rod 502. A sealing block 501 is slidably connected to the inner wall of the coating nozzle 5. One end of the sealing block 501 is fixedly connected to the connecting block 503. The sealing block 501 controls the coating. The discharge width of the coating nozzle 5 is adjusted by activating the first electric push rod 502. The telescopic end of the first electric push rod 502 drives the connecting block 503 to move, and the connecting block 503 in turn drives the sealing block 501 to slide on the inner wall of the coating nozzle 5. By controlling the position of the sealing block 501, the discharge width of the coating nozzle 5 can be changed, thereby meeting the requirements of different coating thicknesses and precisions. This allows the discharge width of the coating nozzle 5 to be adjusted according to actual production needs, increasing the applicability and flexibility of the device and enabling it to meet the production of decorative film coatings of different specifications and requirements.
[0029] In a preferred embodiment, the elastic component includes a connecting shaft 602 rotatably connected inside the mounting bracket 601, an inclined plate 603 located on the outer wall of the connecting shaft 602, and a pair of springs 605 provided on the upper end face of the inclined plate 603. The other end of the springs 605 is connected to the mounting bracket 601. Based on the thickness and coating requirements of the decorative film, a second electric push rod 6 is activated. The telescopic end of the second electric push rod 6 drives the mounting bracket 601 to move up and down, thereby adjusting the height position of the roller shaft 604 to maintain a suitable distance from the surface of the decorative film. When the decorative film passes over the roller shaft 604 during transport, the roller shaft 604... 04 applies a certain pressure to the surface of the decorative film. Since the inclined plate 603 is connected to the mounting bracket 601 through the elastic component, the spring 605 will elastically deform according to the flatness of the decorative film surface and the stress condition, so that the roller shaft 604 can adaptively adjust the pressure to ensure uniform roller pressing on the surface of the decorative film, so that the coating can better adhere to the surface of the decorative film and improve the quality and uniformity of the coating. The setting of the second electric push rod 6 allows the height of the roller shaft 604 to be adjusted according to the actual situation of the decorative film, which can adapt to the production of decorative films of different thicknesses and specifications, and improve the versatility and adaptability of the device.
[0030] The design of the elastic component gives the roller 604 a certain elastic buffering capacity. During the rolling process, it can automatically adjust the pressure according to the changes on the surface of the decorative film, avoiding coating quality problems caused by uneven pressure, ensuring inconsistent coating thickness, blistering, etc., and further improving the coating quality of the decorative film.
[0031] The pump body mentioned above is a CB-B type gear pump, used to extract materials into the cavity tube.
[0032] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0033] During the operation of this seamless decorative film coating device, the decorative film is first installed on the take-up shafts 2 on both sides of the upper end face of the mounting base 1. The rotation of the take-up shafts 2 transports the decorative film into the support housing 3. For the adjustment components of the coating mechanism, when it is necessary to adjust the angle of the coating nozzle 5 to accommodate the coating requirements of different shaped decorative films, the screw 402 rotatably connected inside the slide rail bracket 401 on the side wall of the support housing 3 is rotated by the handwheel. Since the slider 403, which is threaded to the screw 402 and slides on the inner wall of the slide rail bracket 401, moves horizontally, it drives the gear rod 404 fixed at the lower end of the slider 403 to move. Because the gear rod 404 meshes with the transmission gear 4 fixed on the outer wall of the support shaft 303, the transmission gear 4 rotates and drives the support shaft 303 to rotate. This causes the cavity tube 304, which extends from the support shaft 303 into the support housing 3, and the coating nozzle 5, which is fixed at its lower end, to rotate, achieving precise adjustment of the angle of the coating nozzle 5, allowing the paint to be sprayed onto various parts of the decorative film at a suitable angle.
[0034] To adjust the discharge width of the coating nozzle 5 to meet different coating thickness and precision requirements, the first electric push rod 502 fixed to the side wall of the cavity tube 304 is activated. Its telescopic end drives the fixedly connected connecting block 503 to move. The connecting block 503 then drives the sealing block 501 located on the inner wall of the coating nozzle 5 and slidably connected to it to move. The discharge width is changed by controlling the position of the sealing block 501.
[0035] For the roller pressing assembly, based on the thickness of the decorative film and coating requirements, the second electric push rod 6, which is fixed vertically through the upper end of the support housing 3, is activated. Its telescopic end drives the fixedly connected mounting bracket 601 to move up and down, thereby adjusting the height position of the roller pressing shaft 604, which is rotatable at one end of the inclined plate 603 connected by the elastic component inside the mounting bracket 601, so that it maintains a suitable distance from the surface of the decorative film. When the decorative film passes through the roller pressing shaft 604 during the conveying process, the roller pressing shaft 604 will apply a certain pressure to the surface of the decorative film. Since the inclined plate 603 is connected to the mounting bracket 601 by a pair of springs 605 on the upper end of the inclined plate 603 on the outer wall of the connecting shaft 602 rotatably connected inside the mounting bracket 601, the springs 605 will elastically deform according to the flatness of the decorative film surface and the stress condition, so that the roller pressing shaft 604 can adaptively adjust the pressure, ensuring uniform roller pressing on the surface of the decorative film, allowing the coating to better adhere to the surface of the decorative film, and improving the coating quality and uniformity.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A dead angle-free decorative film flow coater device comprising a mounting base (1), characterized in that: The mounting base (1) is provided with a coating mechanism for the decorative film, the coating mechanism including: The adjustment assembly includes a support housing (3) with a U-shaped structure fixed to the upper surface of the mounting base (1). A support shaft (303) is rotatably connected through the horizontal direction of the support housing (3). A gear assembly for rotation adjustment is provided on the outer wall of the support shaft (303). A cavity tube (304) is fixed to one end of the support shaft (303) extending into the support housing (3). A coating nozzle (5) is fixed to the lower end of the cavity tube (304). A sealing block (501) connected by a push assembly is provided inside the coating nozzle (5). The rolling assembly includes a second electric push rod (6) that is vertically fixed through the upper end of the supporting shell (3). The telescopic end of the second electric push rod (6) is fixed with a mounting bracket (601). The mounting bracket (601) has an inclined plate (603) connected by an elastic component inside. One end of the inclined plate (603) is provided with a rotatable rolling shaft (604).
2. The decorative film coating device without dead angles according to claim 1, characterized in that: The upper surface of the mounting base (1) is provided with two winding shafts (2) for conveying decorative film, and the winding shafts (2) are located on both sides of the supporting shell (3).
3. The decorative film coating device without dead angles according to claim 1, characterized in that: The gear assembly includes a slide rail bracket (401) fixed to the side wall of the supporting housing (3). A screw (402) is rotatably connected inside the slide rail bracket (401). A slider (403) is slidably connected to the inner wall of the slide rail bracket (401). The slider (403) is threadedly connected to the screw (402). A gear rod (404) is fixed to the lower end of the slider (403). A transmission gear (4) that meshes with the gear rod (404) is fixed to the outer wall of the supporting shaft (303).
4. The decorative film coating device without dead angles according to claim 1, characterized in that: The top of the supporting shell (3) is fixed with a material box (301), and a flexible tube (302) is provided on one side of the material box (301). The output end of the flexible tube (302) is connected to the cavity tube (304).
5. The decorative film coating device without dead angles according to claim 1, characterized in that: The push assembly includes a first electric push rod (502) fixed to the side wall of the cavity tube (304), a connecting block (503) fixed to the telescopic end of the first electric push rod (502), a sealing block (501) located on the inner wall of the spray nozzle (5) in a sliding connection, and one end of the sealing block (501) fixedly connected to the connecting block (503).
6. The decorative film coating device without dead angles according to claim 1, characterized in that: The elastic component includes a connecting shaft (602) rotatably connected inside the mounting bracket (601), the inclined plate (603) is located on the outer wall of the connecting shaft (602), and a pair of springs (605) are provided on the upper end face of the inclined plate (603), the other end of the springs (605) being connected to the mounting bracket (601).