Spraying device for coating-free internal-lighting lamp box fabric

By designing a suction pump and guide wheel in the spraying device to collect excess paint, and combining it with the heating plate of the drying box, the problem of paint dripping during spraying was solved, achieving efficient paint collection and rapid drying of the lightbox cloth, thus improving production efficiency.

CN224208371UActive Publication Date: 2026-05-08HAINING KINGS LOUIS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HAINING KINGS LOUIS TECH CO LTD
Filing Date
2025-05-30
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

In the existing technology, the light box cloth spraying device is not convenient to collect excess paint during spraying, which causes paint to flow onto the ground, increasing the amount of cleaning work, and the spraying effect is poor.

Method used

A device was designed that includes a spraying box, a drying box, a suction pump, and a spray nozzle. The suction pump collects excess paint and the guide rollers squeeze the lightbox cloth. The heating plate in the drying box and the suction pump work together to dry the sprayed lightbox cloth.

Benefits of technology

It achieves effective collection of paint, reduces cleaning workload, and shortens the processing flow through rapid drying, thereby improving production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a spraying device for coating-free inner-spraying lamp box cloth, which belongs to the technical field of spraying devices and comprises a spraying box, a second movable door is rotatably arranged on the front end face of the spraying box, a feeding port communicated with the inside of the spraying box is arranged on the left side of the spraying box, and a control panel is fixedly mounted below the feeding port. A liquid discharging pipe communicated with the interior of the spraying box is fixedly arranged on the right side of the lower end of the spraying box, a manual valve is installed on the liquid discharging pipe, a second box body is fixedly connected to the top of the left side of the spraying box, and a communicated feeding opening is formed in the top of the second box body. Through the structural design of the second box body, the spraying box, the second spraying head, the second suction pump, the second air guide pipe, the manual valve and the liquid discharge pipe, the lamp box cloth can be conveniently sprayed, redundant paint can be conveniently collected, the paint can be saved, and the spraying efficiency is improved. And cleaning personnel do not need to clean the ground in the later period, and the using effect is good.
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Description

Technical Field

[0001] This utility model relates to the field of spraying device technology, specifically a spraying device for applying uncoated inner lightbox fabric. Background Technology

[0002] Uncoated internal lightbox fabric is a new type of material with good flexibility, flame retardancy, environmental friendliness, high image quality, good coverage, high strength and durability. Its manufacturing process includes material selection, woven twill fabric, preparation of fiber layers, composite molding and post-processing (such as flame retardant treatment, shaping, etc.). It is widely used in lightbox advertising in subways, shopping malls, outdoor storefronts and interior decoration. In the production of lightbox fabric, the surface of the lightbox fabric is sprayed to improve the color of the lightbox fabric.

[0003] A search revealed Chinese patent CN222518983U, which discloses a spraying device for double-sided inkjet-painted lightbox fabric. The device includes a base, a housing fixedly connected to the top center of the base, a spraying box fixedly connected to the top left side of the housing, a feed inlet fixedly connected to the top of the spraying box, a water pump fixedly connected to the top of the housing, a suction pipe fixedly connected to the left side of the water pump, a discharge pipe fixedly connected to the bottom of the water pump, and a nozzle fixedly connected to the bottom of the discharge pipe. An electric push rod is fixedly connected to the top inner side of the housing, and a mounting base is fixedly connected to the bottom of the electric push rod. A tension roller is rotatably connected to the inner side of the mounting base. By using the electric push rod in conjunction with the mounting base and tension roller, the extension of the electric push rod pushes the mounting base downwards, thereby causing the tension roller to move downwards and compress the lightbox fabric, thus tightening the lightbox fabric and improving the flatness and spraying effect during spraying.

[0004] However, the above design still has shortcomings. When spraying the lightbox cloth, it is not convenient to collect and process the sprayed paint, which causes some excess paint to flow down the base onto the ground, increasing the workload of cleaning personnel later and resulting in poor performance.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a spraying device for applying uncoated inner lightbox fabric, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a spraying device for uncoated interior lightbox fabric, comprising a spraying box, a second movable door rotatably disposed on the front end face of the spraying box, a feed inlet communicating with the interior of the spraying box on the left side, a control panel fixedly installed below the feed inlet, a drain pipe communicating with the interior of the spraying box fixedly disposed on the lower right side of the spraying box, a manual valve installed on the drain pipe, a second box body fixedly connected to the top left side of the spraying box, a feeding port communicating with the top of the second box body, and a movable part disposed inside the feeding port. A limiting plug is provided. A second suction pump is fixedly installed on the lower right side of the second box, and the input end of the second suction pump is connected to the inside of the second box through a pipe. The output end of the second suction pump is fixedly connected to a second air guide pipe, which is located at the top inside of the spray box. Multiple second nozzles are fixedly connected to the bottom of the second air guide pipe. A first guide wheel is provided at the top inside of the spray box on the right side of the second air guide pipe. A second guide wheel is rotatably provided at the bottom of the first guide wheel. A drying box is fixedly connected to the top right side of the spray box. A connecting material guide hole is provided between the spray box and the drying box.

[0008] As a further embodiment of this utility model: the front end of the drying box is rotatably provided with a first movable door, the upper right side of the drying box is provided with a connected discharge port, and the right side inside the drying box is rotatably provided with a third guide wheel.

[0009] As a further embodiment of this utility model: the top of the drying oven is provided with a connected mounting hole, and a dustproof net is fixedly installed inside the mounting hole.

[0010] As a further embodiment of this utility model: a first box body is fixedly connected to the left side of the drying box, and an installation cavity is opened inside the first box body. A heating plate is fixedly installed at the bottom of the installation cavity.

[0011] As a further embodiment of this utility model: a first suction pump is installed on the right side of the mounting cavity, and the input end of the first suction pump is connected to the interior of the mounting cavity through a pipe. The output end of the first suction pump is fixedly connected to a first air guide pipe, and the first air guide pipe is located on the left side inside the drying oven. Multiple first nozzles are fixedly connected to the right side of the first air guide pipe.

[0012] As a further embodiment of this utility model: the top of the mounting cavity is provided with a communicating air inlet, the inner wall of the air inlet is threaded with a threaded cap, the surface of the threaded cap is provided with a fixing hole, and a filter screen is fixedly installed inside the fixing hole.

[0013] This utility model has the following beneficial effects:

[0014] The structural design of the second chamber, spray box, second nozzle, second suction pump, second air duct, manual valve, and drain pipe facilitates the spraying of lightbox cloth and the collection of excess paint. This not only saves paint but also eliminates the need for cleaning personnel to clean the floor later, resulting in better performance. It solves the problem that when spraying lightbox cloth, it is difficult to collect the sprayed paint, causing some excess paint to flow down the base onto the ground, increasing the workload of cleaning personnel and resulting in poor performance.

[0015] The structural design of the first housing, mounting cavity, heating plate, first nozzle, first air duct and first suction pump allows for timely drying of the sprayed lightbox fabric, thereby shortening the processing flow of the lightbox fabric and improving the production efficiency of the lightbox fabric. Attached Figure Description

[0016] Figure 1 This is a partial three-dimensional schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal partial structure of the present invention from the front view.

[0018] Figure 3 This is an enlarged partial structural diagram of point A in this utility model;

[0019] Figure 4 This is an enlarged partial structural diagram of point B in this utility model;

[0020] Figure 5 This is a magnified partial structural diagram of point C of this utility model.

[0021] In the diagram: 1. First chamber; 2. Second chamber; 3. Feed inlet; 4. Spraying chamber; 5. Control panel; 6. Drying chamber; 7. First movable door; 8. Second movable door; 9. Limit plug; 10. Feed port; 11. Discharge port; 12. Manual valve; 13. Drain pipe; 14. Threaded cap; 15. Filter screen; 16. Fixing hole; 17. Air inlet; 18. Mounting cavity; 19. Heating plate; 20. Dustproof net; 21. Mounting hole; 22. First nozzle; 23. First air guide pipe; 24. First suction pump; 25. Second nozzle; 26. Second suction pump; 27. Second air guide pipe; 28. First guide wheel; 29. ​​Second guide wheel; 30. Feed guide hole; 31. Third guide wheel. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0023] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1-5This utility model provides an embodiment of a spraying device for uncoated inner lighting box fabric, comprising a spraying box 4, a second movable door 8 rotatably disposed on the front end face of the spraying box 4, a feed inlet 3 communicating with the interior of the spraying box 4 on the left side, a control panel 5 fixedly installed below the feed inlet 3, a drain pipe 13 communicating with the interior of the spraying box 4 fixedly disposed on the lower right side of the spraying box 4, a manual valve 12 installed on the drain pipe 13, a second box 2 fixedly connected to the top left side of the spraying box 4, a feeding port 10 communicating with the top of the second box 2, a limit plug 9 movably disposed inside the feeding port 10, and the second box 2... A second suction pump 26 is fixedly installed on the lower right side, and the input end of the second suction pump 26 is connected to the inside of the second box 2 through a pipe. The output end of the second suction pump 26 is fixedly connected to a second air guide pipe 27, and the second air guide pipe 27 is located at the top inside of the spray box 4. Multiple second nozzles 25 are fixedly connected to the bottom of the second air guide pipe 27. A first guide wheel 28 is set at the top inside of the spray box 4 on the right side of the second air guide pipe 27. A second guide wheel 29 is rotatably set at the bottom of the first guide wheel 28. A drying box 6 is fixedly connected to the top right side of the spray box 4. A connecting material guide hole 30 is opened between the spray box 4 and the drying box 6.

[0028] Specifically, such as Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, during use, when the lightbox cloth needs to be sprayed, the paint in the second chamber 2 can be pumped into the second air pipe 27 by the second suction pump 26, and finally sprayed out through multiple second nozzles 25 to complete the spraying of the lightbox cloth. During this process, the excess paint will fall to the bottom of the spraying box 4. At the same time, the sprayed lightbox cloth can be squeezed by the cooperation of the first guide wheel 28 and the second guide wheel 29, so as to avoid the lightbox cloth containing too much paint. After the spraying work is completed, the excess paint can be collected by opening the manual valve 12 and then through the drain pipe 13. This not only saves paint, but also eliminates the need for cleaning personnel to clean the ground later. The effect is good and solves the problem that it is not convenient to collect and process the sprayed paint when spraying the lightbox cloth, which causes some excess paint to flow down the base to the ground, increasing the workload of cleaning personnel later and resulting in poor effect.

[0029] Among them, the setting of limit plug 9 and feeding port 10 facilitates timely addition of paint.

[0030] The front end of the drying oven 6 is rotatably equipped with a first movable door 7. A discharge port 11 is connected to the upper right side of the drying oven 6. A third guide wheel 31 is rotatably mounted on the right side inside the drying oven 6. A mounting hole 21 is connected to the top of the drying oven 6, and a dustproof net 20 is fixedly installed inside the mounting hole 21. A first housing 1 is fixedly connected to the left side of the drying oven 6. An installation cavity 18 is opened inside the first housing 1. A heating plate 19 is fixedly installed at the bottom of the installation cavity 18. A first suction pump 24 is installed on the right side of the installation cavity 18, and the input end of the first suction pump 24 is connected to the interior of the installation cavity 18 through a pipe. A first air guide pipe 23 is fixedly connected to the output end of the first suction pump 24. The air pipe 23 is located inside the drying chamber 6 on the left side. Multiple first nozzles 22 are fixedly connected to the right side of the first air pipe 23. A first suction pump 24 is installed on the right side of the mounting cavity 18. The input end of the first suction pump 24 is connected to the inside of the mounting cavity 18 through a pipe. The output end of the first suction pump 24 is fixedly connected to the first air pipe 23. The first air pipe 23 is located inside the drying chamber 6 on the left side. Multiple first nozzles 22 are fixedly connected to the right side of the first air pipe 23. An air inlet 17 is opened at the top of the mounting cavity 18. A threaded cap 14 is threadedly connected to the inner wall of the air inlet 17. A fixing hole 16 is opened through the surface of the threaded cap 14. A filter screen 15 is fixedly installed inside the fixing hole 16.

[0031] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, during use, after the lightbox fabric is sprayed, the air in the mounting cavity 18 can be heated by the heating plate 19, and the heated air is drawn into the first air duct 23 by the suction force generated when the first suction pump 24 is working. Finally, it is sprayed out through multiple first nozzles 22 to dry the lightbox fabric. By facilitating timely drying of the sprayed lightbox fabric, the processing flow of the lightbox fabric can be shortened, thereby improving the production efficiency of the lightbox fabric.

[0032] The air inlet 17 facilitates the entry of outside air into the mounting cavity 18, while the filter 15 prevents external dust from entering the mounting cavity 18. After a period of use, the threaded cover 14 can be rotated until it detaches from the air inlet 17, allowing for cleaning of the filter 15. After cleaning, the threaded cover 14 can be screwed back into the air inlet 17. This ease of disassembly, cleaning, and installation of the filter 15 effectively ensures its filtration performance.

[0033] Working principle: In this application, when the lightbox fabric needs to be sprayed, the first movable door 7 and the second movable door 8 are opened first. Then, the lightbox fabric to be sprayed is passed through the feed inlet 3, between the first guide roller 28 and the second guide roller 29, through the guide hole 30, the top of the third guide roller 31, and finally out through the discharge port 11. It is then fixed on the take-up roller. Next, the take-up motor is started to drive the lightbox fabric to rotate slowly. During this process, the paint in the second box 2 can be pumped into the second air pipe 27 by the second suction pump 26. Finally, it is sprayed out through multiple second nozzles 25, thereby completing the spraying of the lightbox fabric. During this process, excess paint will fall into the spraying box 4. At the bottom, the first guide wheel 28 and the second guide wheel 29 work together to squeeze the sprayed lightbox cloth, thus avoiding excessive paint in the lightbox cloth. After the sprayed lightbox cloth passes through the guide hole 30 and enters the drying oven 6, the heating plate 19 heats the air in the mounting cavity 18, and the suction force generated by the first suction pump 24 draws the heated air into the first air guide pipe 23. Finally, it is sprayed out through multiple first nozzles 22 to dry the lightbox cloth. By facilitating timely drying of the sprayed lightbox cloth, the processing flow of the lightbox cloth can be shortened, thereby improving the production efficiency of the lightbox cloth.

[0034] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. At the same time, the electrical components mentioned in this application are all connected to an external power supply and control switch when in use. The control method is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Therefore, this utility model will not explain the control method and circuit connection in detail. Moreover, the external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0035] It should be noted that, in this document, 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.

[0036] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above are only preferred embodiments of this utility model. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this utility model, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A spraying device for uncoated inner lightbox fabric, comprising a spraying box (4), characterized in that: The front end of the spray box (4) is rotatably equipped with a second movable door (8). The left side of the spray box (4) is provided with a feed inlet (3) that communicates with its interior. A control panel (5) is fixedly installed below the feed inlet (3). The lower right side of the spray box (4) is fixedly equipped with a drain pipe (13) that communicates with its interior. A manual valve (12) is installed on the drain pipe (13). The top left side of the spray box (4) is fixedly connected to a second box body (2). The top of the second box body (2) is provided with a feed port (10) that communicates with its interior. A limit plug (9) is movably installed inside the feed port (10). A second suction pump (26) is fixedly installed on the lower right side of the second box body (2). The input end of the second suction pump (26) is connected to the interior of the second box (2) through a pipe. The output end of the second suction pump (26) is fixedly connected to the second air guide pipe (27). The second air guide pipe (27) is located at the top inside of the spray box (4). The bottom of the second air guide pipe (27) is fixedly connected to a plurality of second nozzles (25). The top inside of the spray box (4) is located on the right side of the second air guide pipe (27). A first guide wheel (28) is provided. The bottom of the first guide wheel (28) is rotatably provided with a second guide wheel (29). The top right side of the spray box (4) is fixedly connected to a drying box (6). A connecting guide hole (30) is provided between the spray box (4) and the drying box (6).

2. The spraying device for uncoated inner lightbox fabric according to claim 1, characterized in that: The front end of the drying box (6) is provided with a first movable door (7), and the upper right side of the drying box (6) is provided with a connected discharge port (11). The right side inside the drying box (6) is provided with a third guide wheel (31).

3. The spraying device for uncoated inner lightbox fabric according to claim 1, characterized in that: The top of the drying box (6) is provided with a connected mounting hole (21), and a dustproof net (20) is fixedly installed inside the mounting hole (21).

4. The spraying device for uncoated inner lightbox fabric according to claim 1, characterized in that: The drying box (6) is fixedly connected to the left side of the first box body (1), and the first box body (1) has an installation cavity (18) inside, and a heating plate (19) is fixedly installed at the bottom of the installation cavity (18).

5. The spraying device for uncoated inner lightbox fabric according to claim 4, characterized in that: A first suction pump (24) is installed on the right side of the mounting cavity (18), and the input end of the first suction pump (24) is connected to the inside of the mounting cavity (18) through a pipe. The output end of the first suction pump (24) is fixedly connected to a first air guide pipe (23), and the first air guide pipe (23) is located on the left side inside the drying box (6). Multiple first nozzles (22) are fixedly connected to the right side of the first air guide pipe (23).

6. The spraying device for uncoated inner lightbox fabric according to claim 4, characterized in that: The top of the mounting cavity (18) is provided with a communicating air inlet (17), and a threaded cap (14) is threadedly connected to the inner wall of the air inlet (17). A fixing hole (16) is provided through the surface of the threaded cap (14), and a filter screen (15) is fixedly installed inside the fixing hole (16).

Citation Information

Patent Citations

  • Spraying device for double-sided painting lamp box fabric

    CN222518983U