Surface spraying device for tinned sheet processing

Abstract

The utility model discloses a surface spraying device for tinned sheet processing, which comprises a main body, a spraying chamber is arranged in the main body, a spraying gun is arranged on the upper side in the spraying chamber, an air suction seat is arranged on one side in the spraying chamber, and a plurality of through holes which are used for air suction and are distributed in a rectangular array are formed in one side of the air suction seat. A purification box is arranged on one side of the upper end of the main body, three activated carbon plates distributed at equal intervals are arranged on the rear side in the purification box, a coating box is arranged on the other side of the upper end of the main body, and a low liquid level sensor is installed on the lower side of one side in the coating box. According to the surface spraying device for tinned sheet machining, splashing of coating particles is effectively prevented, harm to the body health of operators is avoided, meanwhile, nearby workers can be reminded to timely supplement coating, production interruption caused by coating exhaustion during spraying is effectively avoided, and the working efficiency and the continuity of spraying operation are improved.

Description

Technical Field

[0001] This utility model relates to the field of tin-plated sheet processing technology, specifically to a surface spraying device for tin-plated sheet processing. Background Technology

[0002] Tinplate, also known as tinplate, is a low-carbon steel sheet with an extremely thin layer of metallic tin on its surface. This type of sheet combines the hardness and strength of steel with the weldability, corrosion resistance, and bright appearance of tin. It boasts excellent corrosion resistance, is odorless and non-toxic, lightweight, easy to process and shape, and can be printed with various patterns to enhance product aesthetics. Therefore, it is widely used in the food canning industry, electronics, and chemical paint industries, especially for packaging various food and beverage cans, candies, tea tins, and biscuit tins. In the tinplate processing, a surface coating device plays a crucial role. This device is mainly used for passivation treatment of the tinplate to prevent the tin layer from oxidizing and turning yellow during storage or paint baking, while also improving the tinplate's sulfur resistance and other properties. The coating device evenly coats the tinplate surface with a passivation solution, forming a protective film to ensure the quality and performance of the tinplate.

[0003] Chinese Patent No. CN218502418U discloses a thin plate surface spraying device, including: a spraying conveyor table and a paint tank; the spraying conveyor table is rotatably connected to two ends of a rotating shaft, and the two ends of the rotating shaft are rotatably connected to a support sleeve rod. The bottom end of the support sleeve rod is connected to a waste paint collection tank. The bottom of the waste paint collection tank is connected to a base plate through a bracket. The surface of the spraying conveyor table is set with a grid structure. A set of spraying rows is arranged on one side of the top of the spraying conveyor table. The end of the spraying rows away from the spraying conveyor table is connected to a circulation drive mechanism. The circulation drive mechanism drives the spraying rows to circulate in a direction parallel to the rotating shaft. The circulation drive mechanism is connected to a transmission component in the direction of the rotating shaft at one end of the spraying conveyor table. The transmission component is connected to an adjacent rotating shaft.

[0004] While the above-mentioned solution provides a stable and energy-efficient coating, it generates splattered paint particles during the coating process on tin-plated sheets. This not only pollutes the working environment but may also pose a threat to the health of operators. Long-term exposure to such an environment may lead to the inhalation of harmful gases or contact with harmful substances, resulting in respiratory diseases, skin diseases, and other health problems. Furthermore, the coating device lacks a paint level indicator, making it difficult for operators to determine when to stop coating to replenish the paint. Therefore, it does not meet current requirements. To address this, we propose a surface coating device for tin-plated sheet processing. Utility Model Content

[0005] The purpose of this utility model is to provide a surface spraying device for tin-plated sheet processing, so as to solve the problems mentioned in the background art, such as the easy pollution of the working environment and the harm to the health of operators by the splashing of paint particles when using the surface spraying device, and the difficulty for operators to judge when to stop spraying to replenish the paint.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a surface spraying device for tin-plated thin sheet processing, comprising a main body, a spraying chamber inside the main body, a spraying gun on the upper side of the spraying chamber, an air suction seat on one side of the spraying chamber, and a plurality of through holes arranged in a rectangular array for air suction on one side of the air suction seat, a purification box on one side of the upper end of the main body, three equidistant activated carbon plates on the rear side inside the purification box, a paint tank on the other side of the upper end of the main body, and a low liquid level sensor installed on the lower side of one side inside the paint tank.

[0007] Preferably, a second suction machine is provided at the rear of the purification box, and the purification box, the second suction machine, and the suction seat are all connected by a second connecting straight pipe.

[0008] Preferably, a first suction machine is provided on one side of the lower end of the main body, a suction cup seat is provided at the lower end of the spraying chamber, and the suction cup seat is connected to the first suction machine through a first connecting straight pipe. A plurality of suction cups are provided at the upper end of the suction cup seat in a rectangular adhesive arrangement, and all suction cups are connected to the suction cup seat.

[0009] Preferably, a PLC controller is provided on one side of the main body, and the input terminal of the PLC controller is electrically connected to the output terminal of the low liquid level sensor. An alarm is installed on the upper end of the paint tank, and the input terminal of the alarm is electrically connected to the output terminal of the PLC controller.

[0010] Preferably, a pump body is provided on one side of the paint tank, and the pump body is connected to both the paint tank and the spray gun via connecting hoses.

[0011] Preferably, a first electric slide rail is installed on both sides of the upper end of the spraying chamber, and a second electric slide rail is installed on the moving end of the first electric slide rail, and the moving end of the second electric slide rail is fixedly connected to the spray gun.

[0012] Preferably, a first sealing door is installed at the front end of the main body, and a second sealing door is installed on one side of the purification box.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model features an air suction seat on one side of the spraying chamber. When spraying tin-plated sheet surfaces, a second air suction machine is activated. The second air suction machine draws gas from the purification chamber, and through the connection of the second straight pipe, it generates suction through the through holes on the air suction seat. This allows the paint particles scattered during spraying to be drawn into the purification chamber. The activated carbon plate inside the purification chamber adsorbs the incoming paint particles. Simultaneously, by closing the first sealing door, the splashing of paint particles is effectively prevented, thus avoiding harm to the health of the operators.

[0015] 2. This utility model features a low-level sensor installed on the lower side of one side inside the paint tank. As spraying progresses, the paint level in the tank gradually decreases. When the level drops to the height of the low-level sensor, it is detected and sends an electrical signal to the PLC controller. The PLC controller then processes the signal and activates an alarm, alerting nearby workers to replenish the paint in time. This effectively prevents production interruptions caused by paint depletion during spraying, improving work efficiency and the continuity of spraying operations.

[0016] 3. This utility model features a suction cup seat at the lower end of the spraying chamber, with several rectangularly arranged suction cups at the upper end of the suction cup seat. After the tin-plated sheet is placed on the suction cups, the first suction machine is activated. The first suction machine extracts the gas from the suction cup seat, causing the suction cups to generate suction force, thereby adsorbing and fixing the tin-plated sheet. During the spraying process, it effectively prevents the sheet from shifting or deforming due to airflow or vibration, ensuring the accuracy and consistency of the spraying. This allows the coating to evenly cover every corner of the tin-plated sheet. Compared with clamp fixation, suction cup adsorption will not cause scratches or indentations on the surface of the tin-plated sheet, which is beneficial to protecting the integrity and surface quality of the sheet. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a front view schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a side view of the internal structure of the purification box of this utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged view of a portion of region A in the middle.

[0021] In the diagram: 1. Main body; 2. Spraying chamber; 3. First sealed door; 4. PLC controller; 5. Paint tank; 6. Alarm; 7. Low liquid level sensor; 8. Pump body; 9. Connecting hose; 10. First electric slide rail; 11. Second electric slide rail; 12. Spray gun; 13. Suction cup holder; 14. Suction cup; 15. First connecting straight pipe; 16. First air suction machine; 17. Purification chamber; 18. Second connecting straight pipe; 19. Suction seat; 20. Activated carbon plate; 21. Second air suction machine; 22. Second sealed door. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a surface spraying device for tin-plated thin plate processing, including a main body 1, a spraying chamber 2 inside the main body 1, a spraying gun 12 on the upper side inside the spraying chamber 2, an air suction seat 19 on one side inside the spraying chamber 2, and a plurality of through holes arranged in a rectangular array for air suction on one side of the air suction seat 19, a purification box 17 on one side of the upper end of the main body 1, three equidistant activated carbon plates 20 on the rear side inside the purification box 17, a paint box 5 on the other side of the upper end of the main body 1, and a low liquid level sensor 7 installed on the lower side of one side inside the paint box 5.

[0024] In use, after opening the first sealing door 3, the tin-plated sheet is placed on the suction cup seat 13. Through the action of the first suction machine 16 and the first connecting straight pipe 15, the suction cup 14 generates suction to fix the sheet. The paint is transported from the paint tank 5 to the spray gun 12 through the pump body 8 and the connecting hose 9. The first electric slide rail 10 and the second electric slide rail 11 control the vertical and horizontal movement of the spray gun 12 respectively to achieve full spraying. The second suction machine 21 sucks paint particles into the purification tank 17 through the second connecting straight pipe 18 and the suction seat 19, where they are purified by the activated carbon plate 20. The low liquid level sensor 7 monitors the liquid level in the paint tank 5. When the level is low, the alarm 6 is activated by the PLC controller 4 to remind the user to add more paint. The second sealing door 22 facilitates the replacement of the activated carbon plate 20 to ensure long-term purification effect.

[0025] Please see Figure 1 and Figure 3A second air intake 21 is installed at the rear of the purification box 17. The purification box 17, the second air intake 21, and the air intake seat 19 are all connected by a second connecting straight pipe 18. The second air intake 21 can efficiently extract paint particles and harmful gases generated during the spraying process. With the strong suction of the second air intake 21, together with the air intake seat 19 and the purification box 17, a complete air purification system is formed, which effectively maintains the cleanliness of the air in the spraying room 2 and protects the health of the operators.

[0026] Please see Figure 2 and Figure 4 The main body 1 has a first suction machine 16 installed on one side of the lower end of the interior. The spraying chamber 2 has a suction cup seat 13 installed at the lower end of the interior. The suction cup seat 13 is connected to the first suction machine 16 through a first connecting straight pipe 15. The upper end of the suction cup seat 13 is provided with several suction cups 14 that are arranged in a rectangular adhesive pattern. All suction cups 14 are connected to the suction cup seat 13. The negative pressure generated by the first suction machine 16 is used to firmly adsorb the tin-plated sheet through the suction cups 14. No clamps are needed, which avoids scratches or indentations on the surface of the sheet and ensures the stability and precision of the spraying process.

[0027] Please see Figure 1 and Figure 3 A PLC controller 4 is installed on one side of the main body 1, and the input terminal of the PLC controller 4 is electrically connected to the output terminal of the low liquid level sensor 7. An alarm 6 is installed on the upper end of the paint tank 5, and the input terminal of the alarm 6 is electrically connected to the output terminal of the PLC controller 4. The low liquid level sensor 7 can monitor the paint liquid level in the paint tank 5 in real time. When the liquid level drops to the low level, the PLC controller 4 will immediately trigger the alarm 6 to remind the operator to replenish the paint in time, thereby avoiding production interruption due to paint depletion and improving work efficiency.

[0028] Please see Figure 1 and Figure 2 A pump body 8 is provided on one side of the paint tank 5. The pump body 8 is connected to the paint tank 5 and the spray gun 12 through a connecting hose 9. The pump body 8 can stably and continuously deliver paint from the paint tank 5 to the spray gun 12, ensuring the continuity and uniformity of the spraying operation, while reducing paint waste.

[0029] Please see Figure 2 The upper end of the spray chamber 2 is equipped with two sides of a first electric slide rail 10. The moving end of the first electric slide rail 10 is equipped with a second electric slide rail 11, and the moving end of the second electric slide rail 11 is fixedly connected to the spray gun 12. The use of the second electric slide rail 11 and the first electric slide rail 10 enables the spray gun 12 to move flexibly in the spray chamber 2. Whether vertical or horizontal, it can accurately reach the designated position, ensuring the coverage and uniformity of the spraying, and improving the spraying quality and efficiency.

[0030] Please see Figure 1 and Figure 3 The front end of the main body 1 is equipped with a first sealing door 3, and a second sealing door 22 is installed on one side of the purification box 17. The first sealing door 3 can ensure the sealing of the spraying chamber 2 during the spraying process, prevent paint particles and harmful gases from escaping, and protect the working environment. The second sealing door 22 facilitates the operator to regularly replace the activated carbon plate 20 in the purification box 17, ensuring the continuous and effective operation of the air purification system.

[0031] Working principle: In use, open the first sealing door 3 and place the tin-plated sheet on the upper end of the suction cup seat 13. Start the first suction machine 16, and with the connection of the first connecting straight pipe 15, the air inside the suction cup seat 13 is extracted, causing the suction cups 14 on the suction cup seat 13 to generate suction force, thereby firmly adsorbing and fixing the placed tin-plated sheet. During the spraying process, it effectively prevents the sheet from shifting or deforming due to airflow or vibration. After closing the first sealing door 3, start the pump body 8. The pump body 8, through the connecting hose 9, can pump the paint from the paint tank 5... The paint is delivered to the spray gun 12 and sprayed out to coat the surface of the tin-plated sheet. The spray gun 12 can be moved vertically by activating the two first electric slide rails 10, and horizontally by activating the second electric slide rail 11, achieving a thorough coating effect. During spraying, the second suction machine 21 is activated, which extracts gas from the purification chamber 17 through the second connecting straight pipe 18, and then discharges the gas through the second connecting straight pipe 18. The suction seat 19 generates suction, allowing paint particles splashed and dispersed during spraying to be drawn into the purification chamber 17 through a through-hole on one side. The activated carbon plate 20 inside the purification chamber 17 adsorbs and purifies the paint particles. Simultaneously, the change in the first sealing door 3 prevents paint particles from escaping, avoiding pollution of the working environment and ensuring the health of operators. Operators can periodically replace the activated carbon plate 20 inside the purification chamber 17 by opening the second sealing door 22, ensuring long-term adsorption and purification effects. As spraying progresses, the paint level in the paint tank 5 gradually decreases. When it drops to the height of the low-level sensor 7, it is detected by the low-level sensor 7, which sends an electrical signal to the PLC controller 4. After processing, the PLC controller 4 activates the alarm 6, which sounds an alarm to remind nearby operators to replenish the paint in the paint tank 5. This effectively avoids production interruptions caused by paint depletion during spraying, improving work efficiency and the continuity of spraying operations.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A surface coating apparatus for processing tin-plated thin sheets, comprising a main body (1), characterized in that: The main body (1) has a spraying chamber (2) inside. A spray gun (12) is installed on the upper side of the spraying chamber (2). An air suction seat (19) is installed on one side of the spraying chamber (2). Several through holes arranged in a rectangular array for air suction are opened on one side of the air suction seat (19). A purification box (17) is installed on one side of the upper end of the main body (1). Three equidistant activated carbon plates (20) are installed on the rear side of the purification box (17). A paint tank (5) is installed on the other side of the upper end of the main body (1). A low liquid level sensor (7) is installed on the lower side of one side of the paint tank (5).

2. The surface spraying device for tin-plated sheet processing according to claim 1, characterized in that: A second suction machine (21) is provided at the rear of the purification box (17). The purification box (17), the second suction machine (21), and the suction seat (19) are all connected by a second connecting straight pipe (18).

3. The surface spraying device for tin-plated sheet processing according to claim 1, characterized in that: A first suction machine (16) is provided on one side of the lower end of the main body (1), and a suction cup seat (13) is provided at the lower end of the spraying chamber (2). The suction cup seat (13) and the first suction machine (16) are connected by a first connecting straight pipe (15). Several suction cups (14) are provided at the upper end of the suction cup seat (13) in a rectangular adhesive distribution, and all suction cups (14) are connected to the suction cup seat (13).

4. The surface spraying device for processing tin-plated thin plates according to claim 1, characterized in that: A PLC controller (4) is provided on one side of the main body (1), and the input terminal of the PLC controller (4) is electrically connected to the output terminal of the low liquid level sensor (7). An alarm (6) is installed on the upper end of the paint tank (5), and the input terminal of the alarm (6) is electrically connected to the output terminal of the PLC controller (4).

5. The surface spraying device for processing tin-plated thin plates according to claim 1, characterized in that: A pump body (8) is provided on one side of the paint tank (5), and the pump body (8) is connected to the paint tank (5) and the spray gun (12) through a connecting hose (9).

6. The surface spraying device for tin-plated sheet processing according to claim 1, characterized in that: The upper end of the spraying chamber (2) is equipped with a first electric slide rail (10) on both sides, and the moving end of the first electric slide rail (10) is equipped with a second electric slide rail (11), and the moving end of the second electric slide rail (11) is fixedly connected to the spray gun (12).

7. The surface spraying device for tin-plated sheet processing according to claim 1, characterized in that: The front end of the main body (1) is equipped with a first sealing door (3), and the side of the purification box (17) is equipped with a second sealing door (22).

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