A steel sheet coating device
By introducing lifting rollers and drying components into the steel plate coating device, the problem of thick paint drying naturally affecting processing efficiency has been solved, and automated drying and environmental protection have been achieved to adapt to steel plates of different thicknesses.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN JINXI JINLAN COLD ROLLED SHEET
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-07
AI Technical Summary
Existing steel plate coating equipment increases processing time and affects processing efficiency when applying thick paint through natural drying.
A steel plate coating device was designed, which includes a processing mechanism and a drying component. The gap channel size can be adjusted by lifting rollers to adapt to steel plates of different thicknesses. It is equipped with a drying structure for automated drying, and uses hot air blowers and exhaust fans to improve drying efficiency. A drip tray is set up to collect dripping paint.
It improves the applicability and processing efficiency of the coating equipment, avoids paint dripping and pollution, and ensures a clean processing environment and rapid drying.
Smart Images

Figure CN224463028U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel plate coating technology, and more specifically, to a steel plate coating device. Background Technology
[0002] In the steel plate processing industry, coating is a crucial step in improving the corrosion resistance, wear resistance, and aesthetics of steel plates, and is widely used in industries such as automotive, home appliances, and construction. Traditional steel plate coating equipment typically employs spraying, roller coating, or dip coating methods to evenly apply paint to the steel plate surface. It usually consists of a frame, adjusting mechanism, feeding roller, coating roller, support roller, guide roller, and back coating device, and includes an adjusting roller to ensure uniform paint application, suitable for coating paints containing particles and orange peel texture. However, when applying paint to steel plates, existing coating equipment allows for natural drying when applying a thin layer of paint. But when applying a thicker layer of paint, natural drying increases processing time, directly impacting processing efficiency. Utility Model Content
[0003] Therefore, in order to solve the problem that the natural drying of steel plates after coating affects processing efficiency, this utility model provides a steel plate coating device, the specific technical solution of which is as follows:
[0004] A steel plate coating apparatus includes a processing mechanism and a drying assembly. The processing mechanism includes a feeding platform, a coating structure, and a discharging platform connected in sequence. A coating shell is installed on the coating structure. A lifting roller, a support roller, and a side spray gun are provided inside the coating shell. The lifting roller and the support roller are installed vertically, and the lifting roller can move up and down relative to the support roller. A gap channel for the steel plate to pass through is formed between the lifting roller and the support roller. The spraying direction of the side spray gun is towards the gap channel. A drip groove is provided on the discharging platform. The drying assembly includes a drying structure and a drying hood covering the discharging platform. The drying structure is disposed on the drying hood.
[0005] The aforementioned steel plate coating device, by being equipped with a feeding platform and a discharging platform, facilitates the feeding and discharging of steel plates. The lifting rollers, through their upward and downward movement, allow the device to move back and forth towards the support rollers, thereby changing the size of the gap channel and adapting to steel plates of different thicknesses, thus improving the applicability of the coating device. The drip troughs collect any undried paint that may drip from the coated steel plate during its movement on the discharging platform, effectively preventing pollution of the processing environment. Finally, the device includes a drying assembly for regional drying of the coated steel plates, using an automated drying structure to solve the problem of reduced processing efficiency caused by natural air drying after coating.
[0006] Furthermore, multiple feed rollers are spaced apart on the feed platform, and a first control motor for controlling the rotation state of the feed rollers is also installed on the side wall of the feed platform.
[0007] Furthermore, the coating structure includes a coating table, a paint tank, and a paint bucket located on one side of the bottom of the coating table. The coating table is disposed between the feeding table and the discharging table. The paint tank is fixed inside the coating table and connected to the side spray guns through side pipes. There are multiple side spray guns.
[0008] Furthermore, a bottom spray nozzle is provided at the bottom of the inner wall of the coating shell, and the bottom spray nozzle is connected to the paint bucket through a bottom pipe.
[0009] Furthermore, a second control motor for controlling the rotation state of the support roller is also installed on the outer wall of the coating shell. The output end of the second control motor passes through the coating shell and is connected to the support roller in a transmission manner.
[0010] Furthermore, a lifting seat is slidably disposed on the inner side wall of the coating shell, the lifting roller is rotatably assembled in the lifting seat, and a control handle is installed on the top of the coating shell. One end of the control handle extends into the interior of the coating shell and connects with the lifting seat to drive the lifting seat to slide.
[0011] Furthermore, multiple discharge rollers are spaced apart on the discharge platform, and several drying protrusions are fitted on the discharge rollers. The flow groove is opened at the bottom of the discharge rollers, and a third control motor for controlling the rotation state of the discharge rollers is installed on the side wall of the discharge platform.
[0012] Furthermore, a positioning frame is fixed on the inner wall of the drying hood, and multiple positioning plates are provided at the bottom of the positioning frame. The positioning plates are fixedly connected to the discharge table by threads.
[0013] Furthermore, a mounting frame is connected to the drying hood, and a first air inlet and a first air outlet are provided on the drying hood; the drying structure includes a hot air blower and an exhaust fan fixed on the mounting frame, the air outlet of the hot air blower is connected to the first air inlet, and the air inlet of the exhaust fan is connected to the first air outlet.
[0014] Furthermore, the drying hood is provided with a second air inlet and a second air outlet; the drying structure also includes a circulation machine fixed on the mounting frame, one end of the circulation machine is connected to the second air inlet, and the other end of the circulation machine is connected to the second air outlet. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the steel plate coating device according to an embodiment of the present invention;
[0016] Figure 2 This is a schematic diagram of the processing mechanism of the steel plate coating device according to an embodiment of the present invention;
[0017] Figure 3 This is one of the partial structural schematic diagrams of the coating structure of the steel plate coating device according to an embodiment of this utility model;
[0018] Figure 4 This is a second partial structural schematic diagram of the coating structure of the steel plate coating device according to an embodiment of this utility model;
[0019] Figure 5 This is a schematic diagram of the drying component of the steel plate coating device according to an embodiment of the present invention.
[0020] Explanation of reference numerals in the attached figures:
[0021] 1. Feeding platform; 11. Feeding roller; 12. First control motor; 2. Coating structure; 21. Coating shell; 211. Lifting roller; 212. Supporting roller; 213. Side spray gun; 214. Lifting seat; 22. Coating table; 23. Paint box; 24. Paint bucket; 25. Bottom spray nozzle; 26. Second control motor; 27. Control handle; 3. Discharge platform; 31. Flow trough; 32. Discharge roller; 33. Drying ring; 34. Third control motor; 4. Drying assembly; 41. Drying hood; 42. Drying structure; 421. Hot air blower; 422. Exhaust fan; 423. Circulating machine; 43. Mounting frame. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with its embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and do not limit its scope of protection.
[0023] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0025] In this utility model, "first" and "second" do not represent a specific quantity or order, but are merely used to distinguish names.
[0026] like Figures 1-5 As shown, a steel plate coating device according to one embodiment of the present invention includes a processing mechanism and a drying assembly 4. The processing mechanism includes a feeding platform 1, a coating structure 2, and a discharging platform 3 connected in sequence. A coating shell 21 is installed on the coating structure 2. The coating shell 21 is provided with a lifting roller 211, a supporting roller 212, and a side spray gun 213. The lifting roller 211 and the supporting roller 212 are installed vertically, and the lifting roller 211 can be lifted and lowered relative to the supporting roller 212. A gap channel for the steel plate to pass through is formed between the lifting roller 211 and the supporting roller 212. The spraying direction of the side spray gun 213 is towards the gap channel. A drip groove 31 is provided on the discharging platform 3. The drying assembly 4 includes a drying structure 42 and a drying hood 41 covering the discharging platform 3. The drying structure 42 is disposed on the drying hood 41.
[0027] The aforementioned steel plate coating device, by being equipped with a feeding platform 1 and a discharging platform 3, facilitates the feeding and discharging of steel plates. The lifting roller 211, through its lifting and lowering motion, allows it to move back and forth towards the supporting roller 212, thereby changing the size of the gap channel and adapting to steel plates of different thicknesses, thus improving the applicability of the coating device. The drip trough 31 facilitates the collection of dripping paint from the coated steel plate as it moves along the discharging platform 3, effectively preventing pollution of the processing environment. Furthermore, the drying assembly 4 performs regional drying of the coated steel plate, and the automated drying using the drying structure 42 solves the problem of natural air drying affecting processing efficiency after coating.
[0028] like Figure 2 As shown, in one embodiment, a plurality of feed rollers 11 are spaced apart on the feed platform 1, and a first control motor 12 for controlling the rotation state of the feed rollers 11 is also installed on the side wall of the feed platform 1.
[0029] like Figures 1-4As shown, in one embodiment, the coating structure 2 includes a coating table 22, a paint tank 23, and a paint bucket 24 located on one side of the bottom of the coating table 22. The coating table 22 is disposed between the infeed table 1 and the discharge table 3. The paint tank 23 is fixed inside the coating table 22 and connected to the side spray guns 213 via side pipes. There are multiple side spray guns 213. The paint bucket 24 and the paint tank 23 are used to store the coating paint.
[0030] like Figure 3 As shown, specifically, multiple side spray guns 213 are divided into two rows, upper and lower. The spraying direction of both rows of side spray guns 213 is towards the gap channel, and the extension direction of the gap channel is shifted to the middle of the two rows of side spray guns 213. The spraying angle of the side spray guns 213 is set at a certain angle.
[0031] like Figure 3 As shown, in one embodiment, a bottom spray nozzle 25 is also provided at the bottom of the inner wall of the coating shell 21, and the bottom spray nozzle 25 is connected to the paint bucket 24 through a bottom pipe. The coating spraying operation is performed on the steel plate from directly below, which improves the uniformity of the coating on the steel plate.
[0032] like Figure 3 As shown, in one embodiment, a second control motor 26 for controlling the rotation state of the support roller 212 is also installed on the outer wall of the coating shell 21. The output end of the second control motor 26 passes through the coating shell 21 and is connected to the support roller 212 in a transmission manner.
[0033] like Figure 3 and Figure 4 As shown, in one embodiment, a lifting seat 214 is slidably disposed on the inner wall of the coating shell 21. A lifting roller 211 is rotatably mounted within the lifting seat 214. A control handle 27 is installed on the top of the coating shell 21. One end of the control handle 27 extends into the interior of the coating shell 21 and connects to the lifting seat 214, driving the lifting seat 214 to slide and rise. By providing the control handle 27, the control handle 27 drives the lifting seat 214 to slide and rise on the inner wall of the coating shell 21, thereby driving the lifting roller 211 to move up and down, thus achieving adjustment of the gap size of the gap channel.
[0034] like Figure 2 As shown, in one embodiment, a plurality of discharge rollers 32 are spaced apart on the discharge platform 3. Several drying protrusions 33 are fitted on the discharge rollers 32. A drip groove 31 is formed at the bottom of the discharge rollers 32. A third control motor 34 for controlling the rotation state of the discharge rollers 32 is installed on the side wall of the discharge platform 3. By setting the drying protrusions 33, the discharge rollers 32 are isolated from the steel plate, preventing the steel plate from directly contacting the surface of the discharge rollers 32. This prevents the discharge rollers 32 from rubbing and scraping off the freshly applied paint from the steel plate, and also provides some space for the paint on the steel plate to drip into the drip groove 31.
[0035] In one embodiment, a positioning frame is fixed to the inner wall of the drying hood 41, and multiple positioning plates are provided at the bottom of the positioning frame. The positioning plates are fixedly connected to the discharge table 3 by threads. This improves the stability of the drying hood 41 when it is fixed.
[0036] like Figure 5 As shown, in one embodiment, a mounting bracket 43 is connected to the drying hood 41, and the drying hood 41 has a first air inlet and a first air outlet. The drying structure 42 includes a hot air blower 421 and an exhaust fan 422 fixed on the mounting bracket 43. The air outlet of the hot air blower 421 is connected to the first air inlet, and the air inlet of the exhaust fan 422 is connected to the first air outlet. Thus, by providing the hot air blower 421, high-temperature air is generated, which can quickly raise the internal temperature of the drying hood 41 and effectively improve the drying efficiency. By providing the exhaust fan 422, after the drying operation of the steel plate is completed, the exhaust fan 422 improves the temperature environment inside the drying hood 41 by forcing airflow, exhausting hot air and introducing cool outdoor air, quickly reducing the temperature inside the drying hood 41, facilitating subsequent processing or maintenance by the operator, and avoiding excessively high overall temperature of the drying hood 41 from affecting the operator's working environment.
[0037] The hot air blower 421 and the exhaust fan 422 mentioned above are both existing technologies, and their specific technical features will not be described in detail here.
[0038] like Figure 5 As shown, in one embodiment, the drying hood 41 has a second air inlet and a second air outlet; the drying structure 42 also includes a circulating machine 423 fixed on the mounting frame 43, one end of the circulating machine 423 being connected to the second air inlet and the other end being connected to the second air outlet. The circulating machine 423 accelerates the material drying or heating process by driving the flow of hot air, while ensuring uniform temperature distribution and avoiding local overheating or insufficient drying. The circulating machine 423 is preferably a circulating fan, which is prior art and will not be described in detail.
[0039] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A steel plate coating device, characterized in that, include: The processing mechanism includes a feeding platform, a coating structure, and a discharging platform connected in sequence. A coating shell is installed on the coating structure. A lifting roller, a supporting roller, and a side spray gun are provided inside the coating shell. The lifting roller and the supporting roller are installed vertically, and the lifting roller can be raised and lowered relative to the supporting roller. A gap channel for steel plates to pass through is formed between the lifting roller and the supporting roller. The spraying direction of the side spray gun is towards the gap channel. A drip groove is provided on the discharging platform. A drying assembly, comprising a drying structure and a drying hood covering the discharge platform, wherein the drying structure is disposed on the drying hood.
2. The steel plate coating apparatus according to claim 1, characterized in that, Multiple feeding rollers are spaced apart on the feeding platform, and a first control motor for controlling the rotation state of the feeding rollers is also installed on the side wall of the feeding platform.
3. The steel plate coating apparatus according to claim 1, characterized in that, The coating structure includes a coating table, a paint tank, and a paint bucket located on one side of the bottom of the coating table. The coating table is located between the feeding table and the discharging table. The paint tank is fixed inside the coating table and connected to the side spray guns through side pipes. There are multiple side spray guns.
4. The steel plate coating apparatus according to claim 3, characterized in that, The bottom of the inner wall of the coating shell is also provided with a bottom spray nozzle, which is connected to the paint bucket through a bottom pipe.
5. The steel plate coating apparatus according to claim 1, characterized in that, A second control motor for controlling the rotation state of the support roller is also installed on the outer wall of the coating shell. The output end of the second control motor passes through the coating shell and is connected to the support roller in a transmission manner.
6. The steel plate coating apparatus according to claim 1, characterized in that, A lifting seat is slidably disposed on the inner side wall of the coating shell, and the lifting roller is rotatably assembled in the lifting seat. A control handle is installed on the top of the coating shell, and one end of the control handle extends into the interior of the coating shell and connects with the lifting seat to drive the lifting seat to slide.
7. The steel plate coating apparatus according to claim 1, characterized in that, Multiple discharge rollers are spaced apart on the discharge platform. Several drying protrusions are fitted on the discharge rollers. The flow groove is opened at the bottom of the discharge rollers. A third control motor for controlling the rotation state of the discharge rollers is installed on the side wall of the discharge platform.
8. The steel plate coating apparatus according to claim 1, characterized in that, A positioning frame is fixed on the inner wall of the drying hood, and multiple positioning plates are provided at the bottom of the positioning frame. The positioning plates are fixedly connected to the discharge table by threads.
9. The steel plate coating apparatus according to claim 1, characterized in that, The drying hood is connected to a mounting bracket, and the drying hood has a first air inlet and a first air outlet; the drying structure includes a hot air blower and an exhaust fan fixed on the mounting bracket, the air outlet of the hot air blower is connected to the first air inlet, and the air inlet of the exhaust fan is connected to the first air outlet.
10. The steel plate coating apparatus according to claim 9, characterized in that, The drying hood is provided with a second air inlet and a second air outlet; the drying structure also includes a circulation machine fixed on the mounting frame, one end of the circulation machine is connected to the second air inlet, and the other end of the circulation machine is connected to the second air outlet.