Device for cleaning film surface before coating

Abstract

The utility model discloses a device for cleaning a film surface before coating, which relates to the field of coating film cleaning and comprises a rack and an ultrasonic cleaning box containing cleaning fluid, the ultrasonic cleaning box is provided with an ultrasonic generator, and the part of the film surface is immersed in the cleaning fluid; the air knives are oppositely arranged on the two sides of the film surface and are configured to generate air capable of flowing on the two sides of the film surface; wherein a film surface is conveyed among the ultrasonic cleaning box, the air knife and the drying box, and on the conveying path of the film surface, the ultrasonic cleaning box is arranged on the upstream of the air knife, and the air knife is arranged on the upstream of the drying box. And impurities on the coating film are blown away by the air knife, and then moisture is dried through the drying box, so that cleaning is more thorough.

Description

Technical Field

[0001] The utility model relates to the technical field of coating film cleaning, in particular to a device for cleaning the surface of a coating film before coating, which aims to improve the cleaning effect of the coating film surface and ensure the quality and performance of the coating film in the subsequent coating process. Background Art

[0002] A coating is a thin film applied to a surface to protect it from damage or corrosion from external factors such as water, chemicals, and ultraviolet light. For example, coatings are used in electronics, automobiles, and building exteriors. Before use, coatings require dust removal to remove impurities adhering to their surface.

[0003] The prior art (Announcement No.: CN 221183959 U) discloses a coating film cleaning device, including a water tank body, a driving device, a first transmission device, a second transmission device, a transmission roller, and a transmission rod; the transmission roller is arranged inside the water tank body; the transmission rod is mounted above the water tank body, and the driving device and the first transmission device are driven by the transmission rod; the two ends of the transmission roller are respectively connected to the first transmission device and the second transmission device, and the first transmission device and the second transmission device drive the transmission roller to rotate; the support device is arranged at the notch of the water tank body for supporting the coating film.

[0004] The above patent adds a transmission roller and a transmission device to the traditional water tank. The coating film is set close to the transmission roller. The transmission device drives the transmission roller to rotate and drives the coating film to move in the water tank body. The cleaning liquid can only rely on gravity flow and natural soaking, and cannot penetrate into the tiny pores and fine particle gaps on the surface of the coating film. It is difficult to completely remove stubborn stains, particles or residues attached to the surface of the film, resulting in incomplete cleaning effect. Further improvement is needed. For this purpose, a pre-coating film surface cleaning device is proposed. Utility Model Content

[0005] The main purpose of the utility model is to provide a device for cleaning the membrane surface before coating, which can effectively solve the problems in the background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A device for cleaning a membrane surface before coating comprises a frame, an ultrasonic cleaning box containing a cleaning liquid therein, an ultrasonic generator, and a portion of the membrane surface is immersed in the cleaning liquid; at least one pair of air knives, which are arranged opposite to each other on both sides of the membrane surface and are configured to generate air that can flow on both sides of the membrane surface; and a drying box; wherein the membrane surface is transferred between the ultrasonic cleaning box, the air knives, and the drying box, and on the conveying path of the membrane surface, the ultrasonic cleaning box is arranged upstream of the air knives, and the air knives are arranged upstream of the drying box.

[0008] The above technical solution can be further improved as follows:

[0009] Furthermore, at least one pair of guide rollers are arranged at intervals inside the ultrasonic cleaning box, and a membrane surface cleaning space is defined between the pair of guide rollers.

[0010] Furthermore, the ultrasonic generator is arranged below the membrane surface cleaning space, and the distance between the guide roller and the ultrasonic generator is adjustable. The membrane surface in the membrane surface cleaning space is arranged at the crest or trough of the ultrasonic wave emitted by the ultrasonic generator.

[0011] Furthermore, a suction pump is provided at one end of the ultrasonic cleaning box, and the suction pump is connected to the ultrasonic cleaning box via at least one filter to filter the cleaning liquid.

[0012] Furthermore, the ultrasonic cleaning box is connected to a liquid level controller. The air knife outlet nozzle is tilted downward.

[0013] Furthermore, the drying box is connected to a hot air blower configured to provide convective hot air into the drying box. The drying box is equipped with at least one pair of direction-changing rollers, through which the film surface passes before exiting the drying box. The pair of direction-changing rollers are spaced vertically apart to extend the film surface's transport path within the drying box.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The ultrasonic generator can improve the cleaning effect. When in use, the ultrasonic generator drives the liquid inside the ultrasonic cleaning box to vibrate at high frequency, so that the cleaning liquid can penetrate into the tiny pores and fine particle gaps on the surface of the coating film, and completely remove the particles, dust, grease and dirt attached to the coating film, making the cleaning more thorough;

[0016] 2. By setting up an air knife, the excess moisture on the surface of the coating film after cleaning can be removed. When the coating film is cleaned, it moves between the two air knives to blow off the moisture attached to its surface, reducing the time required for subsequent drying and improving work efficiency. At the same time, the blown-off cleaning liquid can fall into the ultrasonic cleaning box, reducing the waste of cleaning liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a cross-sectional view of the ultrasonic cleaning box of the present invention;

[0019] Figure 3 for Figure 2 A magnified image of the middle figure;

[0020] Figure 4 It is a cross-sectional view of the drying box in the present utility model.

[0021] Figure 5 This is a working principle diagram of the utility model.

[0022] In the figure: 1. Frame; 2. Ultrasonic cleaning box; 3. Guide roller; 4. Liquid level controller; 5. Air knife; 6. Drying box; 7. Hot air blower; 8. Ultrasonic generator; 9. Suction pump; 10. Direction-changing roller. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0026] Example 1:

[0027] like Figure 1As shown, a device for cleaning a membrane surface before coating comprises a frame 1 and an ultrasonic cleaning box 2 containing a cleaning liquid therein, which has an ultrasonic generator 8, and a portion of the membrane surface is immersed in the cleaning liquid;

[0028] at least one pair of air knives 5, the pair of air knives 5 being arranged opposite to each other on both sides of the membrane surface and configured to generate air capable of flowing on both sides of the membrane surface; and a drying box 6;

[0029] The membrane surface is transported between the ultrasonic cleaning box 2 , the air knife 5 and the drying box 6 , and on the transport path of the membrane surface, the ultrasonic cleaning box 2 is arranged upstream of the air knife 5 , and the air knife 5 is arranged upstream of the drying box 6 .

[0030] The ultrasonic generator 8 can improve the cleaning effect and completely remove the dust, grease and dirt attached to the coating film. The air knife 5 blows away the impurities on the coating film, and then the moisture is dried by the drying box 6, making the dust removal more thorough.

[0031] like Figure 2 As shown, a guide roller 3 is connected between two vertical surfaces inside the ultrasonic cleaning box 2. There are at least two guide rollers 3, and in this embodiment, there are a pair (two). The pair of guide rollers 3 defines a membrane surface cleaning space. An ultrasonic generator 8 is arranged below the membrane surface cleaning space, and the distance between the guide roller 3 and the ultrasonic generator 8 is adjustable. Specifically, the ultrasonic generator 8 is installed at the bottom of the ultrasonic cleaning box 2, and the membrane surface in the membrane surface cleaning space is arranged at the peak or trough of the ultrasonic wave emitted by the ultrasonic generator 8. In this embodiment, the distance between the membrane surface and the ultrasonic generator 8 is adjusted by changing the distance between the guide roller 3 and the ultrasonic generator 8. Specifically, the guide roller 3 can be installed on a lifting device, such as a gear rack mechanism, a nut and bolt mechanism, a cylinder or other linear motion mechanism, to drive the guide roller 3 to move up and down. By changing the distance between the guide roller 3 and the ultrasonic generator 8, the coating film between the two guide rollers 3 is located at the peak or trough of the ultrasonic wave, the vibration amplitude is maximized, and the effect of removing impurities is best.

[0032] The distance from the guide roller 3 to the ultrasonic generator 8 can be changed according to the different ultrasonic frequencies so that the coating film is located at the crest or trough of the ultrasonic wave, the vibration reaches the maximum, and the dust removal effect is the best. If 28KHz ultrasonic waves are used, the crest or trough is located every 25.8mm, and the minimum distance between the coating film and the ultrasonic generator 8 is 25.8mm.

[0033] like Figure 2As shown, a suction pump 9 is provided at one end of the ultrasonic cleaning tank 2. The liquid inlet end of the suction pump 9 is connected to the ultrasonic cleaning tank 2, and the liquid discharge end is also connected to the ultrasonic cleaning tank 2. A valve can be provided on the liquid inlet end of the suction pump 9 to control the flow rate of the cleaning liquid. The ultrasonic cleaning tank 2 is connected to a liquid level controller 5 at the end away from the suction pump 9. The liquid level controller 5 monitors the liquid level of the cleaning liquid inside the ultrasonic cleaning tank 2 so that the cleaning liquid does not overflow or the liquid level is lower than the guide roller 3, thereby ensuring the cleaning effect. It can also discharge impurities in the cleaning tank so that the cleaning liquid can be reused to avoid failure to clean the coating film properly. In addition, the suction pump 9 is connected to the ultrasonic cleaning tank 2 via at least one filter to filter the cleaning liquid. The suction pump 9 filters impurities in the cleaning liquid and then transports it back to the ultrasonic cleaning tank 2.

[0034] like Figure 1-3 As shown, the air knife 5 is located above the ultrasonic cleaning box 2, and the air outlet of the air knife 5 is tilted downward. The coating film is smoothly introduced into and out of the ultrasonic cleaning box 2 through the guide roller 3. The air knife 5 blows the coating film output from the ultrasonic cleaning box 2 clean and blows the liquid into the ultrasonic cleaning box 2 to avoid liquid splashing and causing pollution.

[0035] like Figure 1-5 As shown, a hot air blower 8 is installed on the drying box 6, and the exhaust end of the hot air blower 8 extends into the drying box 6. A direction-changing roller 10 is provided in the drying box 6. There is at least one pair of direction-changing rollers 10, and the direction-changing rollers 10 are spaced apart in the vertical direction. The coating film removed from the ultrasonic cleaning box 2 is dried by the drying box 6. The direction-changing rollers 10 provided in the drying box 6 can allow the coating film to have enough time to dry out the moisture in the drying box 6. In this embodiment, as shown in FIG. Figure 5 As shown, there are three pairs of direction-changing rollers 10, which significantly extend the transmission path of the guide rollers 10 in the drying box 6, thereby improving the drying effect.

[0036] like Figure 1-5As shown, compared with the prior art, the present invention can better remove surface impurities from the coating film in the ultrasonic cleaning box 2 through the ultrasonic generator 8. The guide roller 3 in the ultrasonic cleaning box 2 can change the distance from the ultrasonic generator 8, so that the coating film can be at the peak or trough position of the ultrasonic wave at different ultrasonic frequencies, so that the vibration at the coating film reaches the maximum value, and the dust removal effect is better. The suction pump 9 and liquid level controller 5 set at both ends of the ultrasonic cleaning box 2 can ensure that the cleaning liquid in the cleaning box is circulated. When the liquid level controller 5 detects a change in the position of the liquid level, it can change the working state of the suction pump 9, discharge the cleaning liquid in the ultrasonic cleaning box 2 or inject cleaning liquid into the ultrasonic cleaning box 2, ensuring that the cleaning liquid does not overflow too much or too little to achieve the purpose of dust removal. In this process, impurities in the cleaning liquid can also be filtered and discharged to ensure the cleaning effect. After cleaning, the air knife 5 blows away the impurities on the coating film, and then dries the water through the drying box 6, making the dust removal more thorough. In this embodiment, the cleaning liquid is water, and a cleaning agent can also be further added to the water.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A film surface cleaning device before coating, comprising a frame, characterized in that: It also includes an ultrasonic cleaning box (2) containing a cleaning liquid, which has an ultrasonic generator (8), and a portion of the membrane surface is immersed in the cleaning liquid; at least one pair of air knives (5), the pair of air knives (5) being arranged opposite to each other on both sides of the membrane surface and configured to generate air capable of flowing on both sides of the membrane surface; and a drying box (6); The membrane surface is transported between the ultrasonic cleaning box (2), the air knife (5) and the drying box (6), and on the transport path of the membrane surface, the ultrasonic cleaning box (2) is arranged upstream of the air knife (5), and the air knife (5) is arranged upstream of the drying box (6).

2. The film surface cleaning device before coating according to claim 1, characterized in that: At least one pair of guide rollers (3) are arranged at intervals inside the ultrasonic cleaning box (2), and a membrane surface cleaning space is defined between the pair of guide rollers (3).

3. The film surface cleaning device before coating according to claim 2, characterized in that: The ultrasonic generator (8) is arranged below the membrane surface cleaning space, and the distance between the guide roller (3) and the ultrasonic generator (8) is adjustable.

4. The film surface cleaning device before coating according to claim 3, characterized in that: The membrane surface in the membrane surface cleaning space is arranged at the crest or trough of the ultrasonic wave emitted by the ultrasonic generator (8).

5. The film surface cleaning device before coating according to claim 1, characterized in that: A suction pump (9) is provided at one end of the ultrasonic cleaning box (2), and the suction pump (9) is connected to the ultrasonic cleaning box (2) via at least one filter to filter the cleaning liquid.

6. The film surface cleaning device before coating according to claim 1, characterized in that: The ultrasonic cleaning box (2) is connected to a liquid level controller (4).

7. The film surface cleaning device before coating according to claim 1, characterized in that: The air outlet of the air knife (5) is inclined downward.

8. The film surface cleaning device before coating according to claim 1, characterized in that: The drying box (6) is connected to a hot air blower (7), and the hot air blower (7) is configured to provide convection hot air into the drying box (6).

9. The pre-coating film surface cleaning device according to claim 8, characterized in that: At least one pair of direction-changing rollers (10) is provided in the drying box (6), and the film surface is output from the drying box (6) after passing through the at least one pair of direction-changing rollers (10).

10. The film surface cleaning device before coating according to claim 9, characterized in that: The pair of direction-changing rollers (10) are spaced apart in the up-down direction to extend the transmission path of the film surface in the drying box (6).

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