A steel strip adhesive coating device

Abstract

This utility model discloses a steel strip adhesive coating device, comprising: a cleaning chamber containing a thinner for cleaning oil stains on the steel strip; an adhesive coating chamber located at the discharge end of the cleaning chamber containing an adhesive for coating the steel strip surface; and a drying chamber located at the discharge end of the adhesive coating chamber for drying the adhesive on the steel strip surface. The steel strip, under traction, sequentially passes through the cleaning chamber, adhesive coating chamber, and drying chamber to complete the adhesive coating process. This utility model connects the cleaning chamber, adhesive coating chamber, and drying chamber in a sealed manner according to the steel strip's running direction, forming a continuous sealed channel, thus achieving adhesive coating of the steel strip. Through a reasonable structural design, it effectively improves the uniformity of adhesive coating and the drying speed, reduces the difficulty of manual intervention and maintenance, and has good application value.

Description

Technical Field

[0001] This utility model belongs to the field of steel strip adhesive coating technology, and specifically relates to a steel strip adhesive coating device. Background Technology

[0002] Steel strip, as an important metal strip material, is widely used in various industrial fields such as automobiles, construction, home appliances, and packaging. In practical applications, the surface of steel strip often needs to be coated with adhesives or other functional coatings to achieve subsequent material bonding, adhesion, or corrosion protection. Traditional steel strip adhesive coating processes mostly use manual coating or simple dipping devices. These methods are not only inefficient, but also lack precise control over coating thickness, easily leading to problems such as uneven adhesive distribution, local accumulation, and incomplete drying, thus affecting the processing quality of subsequent processes and the consistency of the product.

[0003] Although some existing automated equipment integrates functional modules such as cleaning, coating, and drying, it still has the following shortcomings in actual use: First, the cleaning structure is simple and cannot effectively remove residual oil stains from the steel strip surface, affecting the adhesion of the adhesive; second, the coating area does not have an effective adhesive limiting structure, which easily causes uneven adhesive thickness; third, the mixing system is imperfect, and the adhesive is prone to sedimentation, resulting in poor coating stability; fourth, the drying system has low ventilation efficiency, and the adhesive dries slowly, affecting the production cycle.

[0004] Therefore, there is an urgent need for a steel strip coating device with a more rational structure and more complete functions, capable of continuous and uniform coating of steel strip surface, and possessing efficient cleaning and rapid drying functions, in order to meet the higher requirements of industrial production for coating quality and efficiency. Utility Model Content

[0005] To solve the above problems, this utility model provides a steel strip adhesive coating device.

[0006] The technical solution provided by this utility model is as follows:

[0007] A steel strip adhesive application device, comprising:

[0008] The cleaning chamber contains a thinner for cleaning oil stains from the steel belt.

[0009] A coating chamber is set at the discharge end of the cleaning chamber. The coating chamber contains adhesive and is used to coat the surface of the steel strip with adhesive.

[0010] And a drying chamber located at the discharge end of the adhesive coating chamber, used to dry the adhesive on the surface of the steel strip;

[0011] The steel belt is pulled through the cleaning chamber, the adhesive coating chamber, and the drying chamber in sequence to complete the adhesive coating process.

[0012] In some embodiments, the cleaning chamber includes a first chamber, one end of which has an inlet and the other end has a first outlet. A first nylon roller is provided at the center of the bottom of the first chamber, and rollers for conveying steel belts are provided at both the inlet and outlet of the first chamber.

[0013] In some embodiments, a steel strip leveling device is provided on the side of the first cavity near the first outlet. The steel strip leveling device includes a base plate and a pressure plate. Several guide rods are fixed on the base plate. The pressure plate is slidably mounted on the several guide rods. A limiting block is provided at the top of the guide rod. A spring is sleeved on the guide rod. The spring pushes the pressure plate to move towards one side of the base plate.

[0014] In some embodiments, the adhesive coating chamber includes a second chamber, a second outlet is provided on the side of the second chamber away from the cleaning chamber, a second nylon roller is provided at the center of the bottom of the second chamber, and rollers for conveying steel belts are provided at both the inlet and outlet of the second chamber.

[0015] In some embodiments, a stirring mechanism is provided inside the coating chamber. The stirring mechanism includes a cylinder disposed at the bottom of the coating chamber and a motor disposed above the coating chamber. The output end of the motor is connected to a rotating shaft and extends into the cylinder. A stirring paddle is provided at the bottom of the rotating shaft.

[0016] In some embodiments, two limiting plates are rotatably connected to the middle of the rotating shaft via bearings. The ends of the two limiting plates away from the rotating shaft are fixed to the side plates of the adhesive application cavity. A steel strip passes between the limiting plates and the second nylon roller to apply adhesive.

[0017] In some embodiments, the dry cavity includes a third cavity, which has a third outlet and at least one fan on the side away from the second cavity. The fan blows air into the third cavity, and the third cavity is provided with a plurality of rollers for conveying steel belts.

[0018] In some embodiments, a plurality of circular pads are provided on the roller along the axial direction for placing the adhesive scraped off the surface of the steel strip by the roller.

[0019] In some embodiments, the cleaning chamber, the adhesive coating chamber, and the drying chamber are all equipped with a cover plate, and the cover plate of the drying chamber has an exhaust port.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] (1) This utility model connects the cleaning chamber, the adhesive coating chamber and the drying chamber in a sealed manner according to the running direction of the steel belt to form a continuous sealed channel, thereby realizing the adhesive coating of the steel belt. Through reasonable mechanism design, the uniformity of adhesive coating and drying speed are effectively improved, and the difficulty of manual intervention and maintenance is reduced. It has good promotion and application value.

[0022] (2) This utility model uses nylon rollers in conjunction with limiting plates to perform a dual action of "pressure soaking-scraping coating" on the steel strip, which can control the thickness of the wet film on both sides while ensuring the stable tension of the steel strip, thus improving the quality of the steel strip coating. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the cleaning cavity structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the adhesive coating cavity structure of this utility model;

[0026] Figure 4 This is a schematic diagram of the drying chamber structure of this utility model.

[0027] The attached figures are labeled as follows:

[0028] 1. Cleaning chamber; 2. Glue-applying chamber; 3. Drying chamber; 4. Roller; 5. Gasket; 6. Cover plate; 7. Exhaust port;

[0029] 11. First cavity; 12. Inlet; 13. First outlet; 14. Base plate; 15. Pressure plate; 16. Guide rod; 17. Limiting block; 18. Spring; 19. First nylon roller;

[0030] 21. Second cavity; 22. Second outlet; 23. Second nylon roller; 24. Cylinder; 25. Motor; 26. Rotating shaft; 27. Agitator; 28. Limiting plate;

[0031] 31. Third cavity; 32. Third outlet; 33. Fan. Detailed Implementation

[0032] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0033] This invention provides a steel strip adhesive coating device for continuously and uniformly coating and drying adhesive onto the surface of steel strips. The device is compact, functionally integrated, and suitable for surface adhesive coating of steel strips during production, especially for automated continuous production lines.

[0034] The adhesive coating device of this invention includes a cleaning chamber 1, an adhesive coating chamber 2, and a drying chamber 3. Driven by a traction device, the steel belt passes through these three chambers sequentially, achieving cleaning, adhesive coating, and drying of the steel belt surface.

[0035] The cleaning chamber 1 is a first chamber 11, which contains a diluent for removing oil and impurities from the surface of the steel belt. The first chamber 11 has a semi-circular cross-section, and the liquid level inside is slightly lower than the axis of the first nylon roller 19.

[0036] The first cavity 11 has a steel belt inlet 12 at one end and a first outlet 13 at the other end, through which the steel belt passes horizontally. To ensure stable conveying of the steel belt during the cleaning process, a pair of rollers 4 are provided at both the inlet and outlet of the first cavity 11. These rollers 4 are supported on the outer shell of the first cavity 11 by bearings, enabling the steel belt to smoothly pass through the cleaning area. In addition, a nylon roller is provided at the center of the bottom of the first cavity 11 to apply downward pressure to the steel belt, ensuring it is completely immersed in the diluent.

[0037] To further improve the surface condition of the steel strip, a steel strip leveling device is provided near the first outlet 13. This leveling device includes a base plate 14 at the bottom and a pressure plate 15 above it. Several guide rods 16 are vertically mounted on the base plate 14, passing through the pressure plate 15 and restricting its sliding in the vertical direction. A limiting block 17 is provided at the top of each guide rod 16. A spring 18 is sleeved on each guide rod 16; the upper end of the spring 18 is fixed to the bottom of the limiting block 17, and the lower end is fixed to the pressure plate 15, providing a downward elastic clamping force so that the pressure plate 15 can apply a certain pressure to level the surface of the steel strip, preventing uneven subsequent adhesive application.

[0038] The cleaned and leveled steel belt then enters the adhesive coating chamber 2. The adhesive coating chamber 2 is a second chamber 21, containing a space for storing adhesive. The steel belt passes through this chamber, carrying the adhesive with it, thus achieving the adhesive coating process. A second nylon roller 23 is located at the center of the bottom of the second chamber 21 to support the steel belt and prevent it from sagging due to the viscous adhesive liquid. The inlet and outlet of the second chamber 21 also have rollers 4 for conveying the steel belt, maintaining the smooth transport of the steel belt throughout the adhesive coating process.

[0039] In a preferred embodiment, two limiting plates 28 are connected to the middle of the rotating shaft 26 via bearings. One end of each limiting plate 28 is away from the rotating shaft 26 and fixed to the side plates of the cavity. Each limiting plate 28 can limit a steel strip. When applying adhesive, the steel strip passes through the narrow gap between the limiting plate 28 and the second nylon roller 23. This structure helps control the adhesive thickness, providing a certain degree of adhesive limiting and scraping, preventing the coating from being too thick or uneven.

[0040] To prevent the adhesive from settling or becoming uneven, a stirring mechanism is provided inside the second chamber 21. The stirring mechanism includes a cylinder 24 located at the bottom of the chamber, with a motor 25 connected to the top of the cylinder 24 via a flange. The output end of the motor 25 is connected to a rotating shaft 26, which extends downwards into the cylinder 24, with a stirring paddle 27 at its bottom. The motor 25 drives the stirring paddle 27 to rotate, thereby stirring the adhesive inside the cylinder 24, preventing the adhesive from solidifying due to prolonged stagnation, and ensuring its uniformity and stability.

[0041] After the adhesive is applied, the steel strip enters the drying chamber 3. The drying chamber 3 is a third chamber 31, with a rectangular structure and a third outlet 32 ​​on the side away from the adhesive application chamber 2. Inside the third chamber 31, at least one fan 33 is installed to force airflow into the internal channels. The airflow generated by the fan 33 blows along the steel strip conveying direction, accelerating the drying process of the adhesive. To facilitate air drying, multiple rollers 4 are installed inside the third chamber 31 along the steel strip path. These rollers 4 not only support the steel strip but also keep it horizontal and flat throughout the drying process. The steel strip stays in this area for about 30 seconds, which allows the solvent on the coating surface to basically evaporate and initially cure before being wound into a finished steel coil by a subsequent tension winding device.

[0042] Furthermore, each roller 4 is provided with a high-temperature resistant polyimide gasket 5 of the same thickness on its outer periphery. The outer diameter of the gasket 5 is 2mm larger than that of the roller 4, and an annular groove is formed therebetween to accommodate excess adhesive and prevent re-adhesion.

[0043] In this embodiment, the cleaning chamber 1, the adhesive coating chamber 2, and the drying chamber 3 are all provided with a cover plate 6 on top, and the cover plate 6 on the drying chamber 3 has an exhaust port 7 to remove solvent vapor.

[0044] In summary, the steel strip coating device of the present invention integrates functions such as cleaning, leveling, stirring, adhesive limiting, and drying. It features a reasonable structure, stable operation, and is suitable for efficient and high-quality steel strip surface treatment production processes. Through its rational mechanism design, it effectively improves coating uniformity and drying speed, reduces manual intervention and maintenance difficulty, and has significant potential for widespread application.

[0045] It should be noted that implementations not shown or described in the accompanying drawings or the main text of the specification are all forms known to those skilled in the art and are not described in detail. Furthermore, the definitions of the elements and methods described above are not limited to the various specific structures, shapes, or methods mentioned in the embodiments.

[0046] It should also be noted that this document may provide examples of parameters containing specific values, but these parameters need not be exactly equal to the corresponding values, but can approximate the corresponding values ​​within acceptable error tolerances or design constraints. Directional terms mentioned in the embodiments, such as "up," "down," "front," "back," "left," "right," "inner," and "outer," are only for reference to the directions in the accompanying drawings and are not intended to limit the scope of protection of this application.

[0047] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A steel strip coating apparatus characterized by comprising: include: Cleaning chamber (1), which is filled with diluent for cleaning oil stains on steel belt; The adhesive coating chamber (2) is provided at the discharge end of the cleaning chamber (1), and the adhesive coating chamber (2) is filled with adhesive for coating the surface of the steel strip. And a drying chamber (3) provided at the discharge end of the adhesive coating chamber (2) for drying the adhesive on the surface of the steel strip; The steel belt is pulled through the cleaning chamber (1), the adhesive coating chamber (2), and the drying chamber (3) in sequence to complete the adhesive coating.

2. The steel belt coating apparatus according to claim 1, wherein The cleaning chamber (1) includes a first chamber (11), one end of which is provided with an inlet (12) and the other end with a first outlet (13). A first nylon roller (19) is provided at the center of the bottom of the first chamber (11), and rollers (4) for conveying the steel belt are provided at both the inlet and outlet of the first chamber (11).

3. The steel belt coating apparatus of claim 2, wherein A steel strip leveling device is provided on the side of the first cavity (11) near the first outlet (13). The steel strip leveling device includes a base plate (14) and a pressure plate (15). Several guide rods (16) are fixed on the base plate (14). The pressure plate (15) is slidably disposed on the several guide rods (16). A limiting block (17) is provided at the top of the guide rod (16). A spring (18) is sleeved on the guide rod (16). The spring (18) pushes the pressure plate (15) to move toward the base plate (14).

4. The steel strip adhesive coating device according to claim 1, characterized in that, The adhesive coating cavity (2) includes a second cavity (21), and a second outlet (22) is provided on the side of the second cavity (21) away from the cleaning cavity (1). A second nylon roller (23) is provided at the center of the bottom of the second cavity (21). Rollers (4) for conveying the steel belt are provided at both the inlet and outlet of the second cavity (21).

5. The steel strip adhesive applicator according to claim 4, characterized in that, The coating cavity (2) is equipped with a stirring mechanism. The stirring mechanism includes a cylinder (24) at the bottom of the coating cavity (2) and a motor (25) above the coating cavity (2). The output end of the motor (25) is connected to a rotating shaft (26) and extends into the cylinder (24). The bottom of the rotating shaft (26) is equipped with a stirring paddle (27).

6. The steel strip adhesive coating device according to claim 5, characterized in that, Two limiting plates (28) are rotatably connected to the middle of the rotating shaft (26) via bearings. The ends of the two limiting plates (28) away from the rotating shaft (26) are fixed to the side plate of the adhesive coating cavity (2). The steel strip passes through the limiting plate (28) and the second nylon roller (23) to apply adhesive.

7. The steel strip adhesive coating device according to claim 6, characterized in that, The dry cavity (3) includes a third cavity (31), and the third cavity (31) is provided with a third outlet (32) and at least one fan (33) on the side away from the second cavity (21). The fan (33) blows air into the third cavity (31), and the third cavity (31) is provided with a plurality of rollers (4) for conveying the steel belt.

8. The steel strip adhesive applicator according to any one of claims 4 and 7, characterized in that, Several circular pads (5) are arranged along the axial direction on the roller (4).

9. The steel strip adhesive coating device according to claim 1, characterized in that, The cleaning chamber (1), the adhesive coating chamber (2) and the drying chamber (3) are all provided with a cover plate (6) on top, and the cover plate (6) on the drying chamber (3) has an exhaust port (7).

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