Coating device for coating of strip steel

Abstract

The utility model relates to the technical field of coating devices, in particular to a coating device for coating of strip steel, which comprises a machine body, a fixing frame is fixedly mounted at the left end of the front surface of the machine body, a controller is fixedly mounted at the top of the fixing frame, and a supporting roller and a steering roller are sequentially arranged at the middle end of an inner cavity of the machine body from top to bottom; the U-shaped frame is fixedly installed at the left end of the top of the machine body, a servo motor is fixedly installed on one side in the U-shaped frame, and the output end of the servo motor is fixedly connected with a threaded rod. According to the utility model, through real-time roughness detection and closed-loop control of dynamic adjustment of the coating amount, the influence of the surface state difference of the strip steel on the coating quality can be effectively compensated, the defects of uneven thickness, orange peel and bottom exposure are obviously reduced, and the coating quality of the surface of the strip steel is improved.

Description

Technical Field

[0001] This utility model relates to the field of coating device technology, specifically a coating device for coating steel strips. Background Technology

[0002] Steel strip is a narrow and long steel plate produced by various steel rolling mills to meet the needs of different industrial sectors for the industrialized production of various metal or mechanical products. Steel strip is also known as steel strip, and in order to improve the insulation and corrosion resistance of the steel strip surface, a coating is applied during processing.

[0003] Currently, strip steel exhibits varying degrees of surface roughness after production. During metal rolling, due to the surface texture of the rolls and the rolling force, the strip steel surface often forms regular patterns corresponding to the roll texture. Furthermore, if the rolls have defects or uneven wear, these irregularities will reappear on the strip steel surface at certain cycles. Areas with high surface roughness have more pits, requiring the coating to fill more depressions. If the coating amount of a traditional coating device is fixed, it may result in thin coatings at raised areas and thick coatings at recessed areas. Conversely, areas with low roughness are prone to sagging due to excessive coating. Additionally, uneven roughness leads to uneven stress on the coating surface during application, resulting in an uneven texture similar to orange peel after drying. Moreover, areas with extremely high roughness may expose the substrate due to insufficient coating filling. Therefore, we propose a coating device for strip steel. Utility Model Content

[0004] The purpose of this invention is to provide a coating device for steel strips, which has the advantage of good coating effect and solves the problems of uneven thickness, orange peel texture and exposed substrate that occur during the coating process of traditional coating devices.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a coating device for strip steel, comprising: a machine body, a fixed frame fixedly installed on the left end of the front side of the machine body, a controller fixedly installed on the top of the fixed frame, and a support roller and a guide roller arranged sequentially from top to bottom in the middle of the inner cavity of the machine body.

[0006] A U-shaped frame is fixedly installed on the top left end of the machine body. A servo motor is fixedly installed on one side inside the U-shaped frame. A threaded rod is fixedly connected to the output end of the servo motor. A movable plate is threadedly connected to the outer surface of the threaded rod. T-shaped connecting plates are fixedly connected to both the front and rear ends of one side of the movable plate. A material taking roller and a coating roller located inside the machine body are movably connected to the inner side of the T-shaped connecting plate.

[0007] An n-shaped frame is fixedly installed on the top left side of the organism, and a wired laser sensor is fixedly installed on the top inner side of the n-shaped frame.

[0008] Preferably, support plates are fixedly connected to both the front and rear ends of the bottom of the machine body.

[0009] Preferably, a coating tray is provided at the left end of the inner cavity of the machine body, and the lower end of the material pick-up roller is located inside the coating tray.

[0010] Preferably, the rear end of the top of the coating tray is connected to an injection pipe extending to the rear side of the machine body, and the upper end of the injection pipe is threaded with a sealing cap.

[0011] Preferably, guide grooves are provided on both the front and rear sides of the upper end of the machine body, and the front and rear ends of the material taking roller and the coating roller slide inside them.

[0012] Preferably, a cleaning seat is fixedly connected to the left side of the machine body, and nylon fiber rollers and polyurethane sponge rollers are respectively provided at the left and right ends of the inner side of the cleaning seat, and there are two of each type of roller.

[0013] Preferably, the inner side of the left end of the machine body is provided with two smoothing rollers distributed vertically.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This invention enables closed-loop control of dynamic adjustment of coating amount through real-time roughness detection, which can effectively compensate for the impact of differences in strip surface condition on coating quality, significantly reduce defects such as uneven thickness, orange peel texture and exposed substrate, and improve the coating quality of strip surface. Attached Figure Description

[0016] Figure 1 This is a first-view structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0018] Figure 3 This is a schematic diagram of the guide groove structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the third-view cross-sectional structure of this utility model.

[0020] In the diagram: 1. Machine body; 101. Support plate; 102. Fixing frame; 103. Controller; 104. Smoothing roller; 105. N-shaped frame; 106. Line laser sensor; 107. Guide groove; 108. Support roller; 109. Directional roller; 2. Cleaning seat; 201. Nylon fiber roller; 202. Polyurethane sponge roller; 3. U-shaped frame; 301. Moving plate; 302. T-shaped connecting plate; 303. Servo motor; 304. Threaded rod; 4. Coating tray; 401. Injection pipe; 402. Picking roller; 403. Coating roller. Detailed Implementation

[0021] 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.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The components of this application, including the body 1, support plate 101, fixing frame 102, controller 103, smoothing roller 104, n-shaped frame 105, line laser sensor 106, guide groove 107, support roller 108, steering roller 109, cleaning seat 2, nylon fiber roller 201, polyurethane sponge roller 202, U-shaped frame 3, moving plate 301, T-shaped connecting plate 302, servo motor 303, threaded rod 304, coating tray 4, liquid injection pipe 401, material taking roller 402, and coating roller 403, are all general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] Example 1

[0026] Please see Figures 1-4As shown, this utility model provides a technical solution: a coating device for strip steel, comprising: a machine body 1, a fixing frame 102 fixedly installed on the left end of the front of the machine body 1, a controller 103 fixedly installed on the top of the fixing frame 102, and a support roller 108 and a guide roller 109 arranged sequentially from top to bottom in the middle of the inner cavity of the machine body 1.

[0027] A U-shaped frame 3 is fixedly installed on the top left end of the machine body 1. A servo motor 303 is fixedly installed on one side inside the U-shaped frame 3. A threaded rod 304 is fixedly connected to the output end of the servo motor 303. A movable plate 301 is threadedly connected to the outer surface of the threaded rod 304. T-shaped connecting plates 302 are fixedly connected to both the front and rear ends of one side of the movable plate 301. A material picking roller 402 and a coating roller 403 located inside the machine body 1 are movably connected to the inner side of the T-shaped connecting plate 302.

[0028] An n-shaped frame 105 is fixedly installed on the top left side of the organism 1, and a wired laser sensor 106 is fixedly installed on the top inner side of the n-shaped frame 105.

[0029] Support plates 101 are fixedly connected to both the front and rear ends of the bottom of the machine body 1. A paint tray 4 is provided at the left end of the inner cavity of the machine body 1, and the lower end of the pick-up roller 402 is located inside the paint tray 4. Guide grooves 107 are provided on both the front and rear sides of the upper end of the machine body 1, and the front and rear ends of the pick-up roller 402 and the coating roller 403 slide inside them.

[0030] This technical solution utilizes a line laser sensor 106 to scan the surface of the strip steel to be coated using a laser beam. Utilizing the principle of laser triangulation, it enables high-precision, non-contact measurement of the strip steel surface roughness, unaffected by human factors and with high measurement speed. Simultaneously, the line laser sensor 106 transmits the measured data to the controller 103 for processing. After processing the data through its internal central processing unit, the controller 103 transmits control signals to the servo motor 303 in real time. The servo motor 303 then drives the threaded rod 304 to rotate according to the control signals. When the threaded rod 304 rotates, it drives the moving plate 301 and the T-shaped connecting plate 302 to move. When the T-shaped connecting plate 302 moves, it drives the material taking roller 402 and the coating roller 403 to move with the assistance of the guide groove 107. During this period, the distance between the material taking roller 402 and the coating roller 403 is fixed, which is conducive to providing stable coating material. The movement of the coating roller 403 can adjust the distance between itself and the surface of the coated steel strip in real time according to the change of the surface roughness of the coated steel strip. This can effectively compensate for the influence of the difference in the surface condition of the steel strip on the coating quality and significantly reduce defects such as uneven thickness, orange peel texture and exposed substrate.

[0031] It should be noted that the line laser sensor 106, controller 103, and servo motor 303 can all be purchased directly from the market. The controller 103 can be controlled using the established control model and a compensation strategy. The connection methods and electrical connections of each component all adopt mature and conventional methods in the existing technology, so they will not be described in detail here.

[0032] Example 2

[0033] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, the rear end of the top of the paint tray 4 is connected to an injection pipe 401 extending to the rear side of the body 1, and the upper end of the injection pipe 401 is threaded with a sealing cap.

[0034] This technical solution facilitates the addition of coating liquid to the inner coating plate 4 by setting up the injection pipe 401.

[0035] Example 3

[0036] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, a cleaning seat 2 is fixedly connected to the left side of the machine body 1. A nylon fiber roller 201 and a polyurethane sponge roller 202 are respectively provided at the left and right ends of the inner side of the cleaning seat 2, and there are two of each of the nylon fiber roller 201 and polyurethane sponge roller 202.

[0037] This technical solution: By setting up the cleaning seat 2, and with the assistance of the nylon fiber roller 201 and the polyurethane sponge roller 202, the surface of the strip steel can be cleaned twice before coating, ensuring the surface cleanliness of the strip steel before coating, which is conducive to improving the coating quality of the strip steel surface.

[0038] Example 4

[0039] Based on Embodiment 1, this utility model is as follows: Figures 1-4 As shown, two smoothing rollers 104 are arranged vertically on the inner side of the left end of the machine body 1.

[0040] This technical solution: By setting up the smoothing roller 104, the surface of the strip steel can be smoothed, ensuring the stability of the strip steel during coating.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A coating apparatus for steel strip, characterized in that, include: The machine body (1) has a fixed frame (102) fixedly installed on the left side of the front of the machine body (1), and a controller (103) fixedly installed on the top of the fixed frame (102). The support roller (108) and the steering roller (109) are arranged sequentially from top to bottom in the middle of the inner cavity of the machine body (1). A U-shaped frame (3) is fixedly installed on the top left end of the machine body (1). A servo motor (303) is fixedly installed on one side inside the U-shaped frame (3). A threaded rod (304) is fixedly connected to the output end of the servo motor (303). A movable plate (301) is threadedly connected to the outer surface of the threaded rod (304). A T-shaped connecting plate (302) is fixedly connected to both the front and rear ends of one side of the movable plate (301). A material taking roller (402) and a coating roller (403) located inside the machine body (1) are movably connected to the inner side of the T-shaped connecting plate (302). An n-shaped frame (105) is fixedly installed on the top left side of the organism (1), and a wired laser sensor (106) is fixedly installed on the top inside the n-shaped frame (105).

2. The coating apparatus for strip steel according to claim 1, characterized in that: Support plates (101) are fixedly connected to both the front and rear ends of the bottom of the body (1).

3. The coating apparatus for strip steel according to claim 1, characterized in that: A paint tray (4) is provided at the left end of the inner cavity of the machine body (1), and the lower end of the pick-up roller (402) is located inside the paint tray (4).

4. The coating apparatus for strip steel according to claim 3, characterized in that: The top rear end of the coating plate (4) is connected to an injection pipe (401) extending to the rear side of the body (1), and the upper end of the injection pipe (401) is threaded with a sealing cap.

5. The coating apparatus for strip steel according to claim 1, characterized in that: The machine body (1) has guide grooves (107) on both the front and rear sides of the upper end, and the front and rear ends of the material taking roller (402) and the coating roller (403) slide inside them.

6. The coating apparatus for strip steel according to claim 1, characterized in that: A cleaning seat (2) is fixedly connected to the left side of the machine body (1). A nylon fiber roller (201) and a polyurethane sponge roller (202) are respectively provided on the left and right ends of the inner side of the cleaning seat (2), and there are two of each of the nylon fiber roller (201) and polyurethane sponge roller (202).

7. The coating apparatus for strip steel according to claim 1, characterized in that: The inner side of the left end of the machine body (1) is provided with two smoothing rollers (104) distributed vertically.

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