A self-cleaning spraying device for antistatic coating liquid

Abstract

This utility model relates to the technical field of atomized spraying equipment, and discloses a self-cleaning spraying device for antistatic coating liquid. It includes a support frame with a connecting arm connected to it. One end of the connecting arm is fixedly connected to a first liquid delivery tube. A liquid storage tank is placed on one side of the support frame. One end of the first liquid delivery tube is connected to a liquid delivery hose, and one end of the liquid delivery hose is connected to the liquid storage tank. This utility model, through the coordinated control of a multi-way valve, a solenoid valve, and a rotating motor, combined with a clogging detection mechanism using a filter plate, spring, and pressure sensor, can automatically switch to an unclogged atomizing nozzle of the same specification, ensuring the continuity of spraying operations. Simultaneously, by controlling the rotating motor to drive the second liquid delivery tube to rotate, the positions of multiple sets of atomizing nozzles can be quickly switched, and the desired atomizing nozzle specification can be selected to adapt to various spraying needs.

Description

Technical Field

[0001] This utility model specifically relates to a self-cleaning spraying device for antistatic coating liquid, belonging to the technical field of atomized spraying equipment. Background Technology

[0002] The self-cleaning antistatic coating liquid spraying equipment is a device specifically designed to efficiently spray antistatic coating liquid onto the surface of materials through an atomizing nozzle. By atomizing the coating liquid into tiny particles, it not only significantly improves spraying efficiency but also ensures the uniformity of the coating and comprehensive coverage of the antistatic effect.

[0003] After prolonged use, the nozzles of existing spraying equipment are prone to clogging, requiring maintenance. Furthermore, when changing to different nozzle specifications, the original nozzle must be disassembled and replaced, all of which interrupt the spraying operation, thus affecting the continuity of spraying and production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a self-cleaning spraying device for antistatic coating liquid to solve the above-mentioned technical problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A self-cleaning spraying device for antistatic coating liquid includes a support frame with a connecting arm connected to the support frame. A first infusion tube is fixed to one end of the connecting arm. A storage tank is placed on one side of the support frame. One end of the first infusion tube is connected to an infusion hose, and one end of the infusion hose is connected to the storage tank. One end of the first infusion tube is connected to a second infusion tube via a swivel joint. A switching assembly is installed on the connecting arm. The switching assembly includes a first gear and a switching motor. The first gear is located at one end of the second infusion tube, and a second gear meshes with one side of the first gear. The switching motor is mounted on the connecting arm, and its output end is connected to the second gear for transmission.

[0006] Preferably, the switching assembly further includes a multi-way valve, which is connected to one end of the first infusion tube. The multi-way valve has multiple sets of drainage branches connected at equal intervals around it. Each set of drainage branches is connected to an atomizing nozzle at one end and a solenoid valve is installed at one end of each set of drainage branches.

[0007] Preferably, the switching assembly further includes a limiting ring and a slip ring. The limiting ring is fixedly connected to the inside of one end of the atomizing nozzle, and the slip ring is movably inserted into the inside of the atomizing nozzle. Multiple sets of guide rods are fixedly connected around one end of the slip ring, and the multiple sets of guide rods slide through a filter plate with the same outer diameter as the slip ring. A spring is provided between the slip ring and the filter plate. A limiting block is installed at the end of the guide rod near the filter plate, and a pressure sensor is installed at the edge of the filter plate.

[0008] Preferably, a lead screw is rotatably connected inside the support frame, and a slider that is slidably connected to the support frame is connected to the lead screw nut pair. The connecting arm is fixed to one end of the slider, and an adjusting motor that is driven by the lead screw is installed at the top of the support frame.

[0009] Preferably, a stirring rod is rotatably installed inside the liquid storage tank, and a stirring motor that is drively connected to the stirring rod is installed at the top of the liquid storage tank.

[0010] Preferably, an observation window is embedded on one side of the liquid storage tank, and the observation window is made of transparent material.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: through the coordinated control of the multi-way valve, solenoid valve and rotating motor, and in conjunction with the blockage detection mechanism of the filter plate, spring and pressure sensor, it is possible to automatically switch to an unblocked atomizing nozzle of the same specification, ensuring the continuity of the spraying operation. At the same time, by controlling the rotating motor to drive the second liquid delivery tube to rotate, the positions of multiple sets of atomizing nozzles can be quickly switched and switched to the required atomizing nozzle to meet various spraying needs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the present invention (I); Figure 2 This is a schematic diagram of the structure of the present invention (II); Figure 3 This is a schematic diagram of the connecting arm in this utility model; Figure 4 This is a schematic diagram of the exploded structure of this utility model.

[0013] In the diagram: 1. Support frame; 2. Connecting arm; 3. First infusion tube; 4. Infusion hose; 5. Storage tank; 6. Rotary joint; 7. Second infusion tube; 8. First gear; 9. Second gear; 10. Rotating motor; 11. Drainage branch pipe; 12. Atomizing nozzle; 13. Solenoid valve; 14. Limiting ring; 15. Slip ring; 16. Guide rod; 17. Spring; 18. Pressure sensor; 19. Lead screw; 20. Sliding block; 21. Adjusting motor; 22. Stirring rod; 23. Stirring motor; 24. Multi-way valve; 25. Filter plate. Detailed Implementation

[0014] 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.

[0015] Please see Figures 1-4 As shown, this utility model proposes a self-cleaning spraying device for antistatic coating liquid, including a support frame 1. A connecting arm 2 is connected to the support frame 1. One end of the connecting arm 2 is fixedly connected to a first infusion tube 3. A storage tank 5 is placed on one side of the support frame 1. One end of the first infusion tube 3 is connected to an infusion hose 4, and one end of the infusion hose 4 is connected to the storage tank 5. One end of the first infusion tube 3 is connected to a second infusion tube 7 via a rotating joint 6. A switching assembly is installed on the connecting arm 2. The switching assembly includes a first gear 8 and a switching motor 10. The first gear 8 is located at one end of the second infusion tube 7, and a second gear 9 meshes with one side of the first gear 8. The switching motor 10 is mounted on the connecting arm 2, and its output end is connected to the second gear 9. The switching assembly also includes a multi-way valve 24, which is connected to the first infusion tube 7. One end of the pipe 3 is connected to a multi-way valve 24, which is surrounded by multiple sets of drainage branch pipes 11 at equal intervals. Each set of drainage branch pipes 11 is connected to an atomizing nozzle 12 at one end, and a solenoid valve 13 is installed at one end of each set of drainage branch pipes 11. The alternation assembly also includes a limiting ring 14 and a slip ring 15. The limiting ring 14 is fixed inside one end of the atomizing nozzle 12, and the slip ring 15 is movably inserted into the atomizing nozzle 12. Multiple sets of guide rods 16 are fixed around one end of the slip ring 15, and the multiple sets of guide rods 16 slide through a filter plate 25 with the same outer diameter as the slip ring 15. A spring 17 is provided between the slip ring 15 and the filter plate 25. A limiting block is installed at the end of the guide rod 16 near the filter plate 25, and a pressure sensor 18 is installed at the edge of the filter plate 25.

[0016] The first infusion rigid tube 3 is used to deliver antistatic coating liquid to the multi-way valve 24. The infusion hose 4 provides a flexible connection for easy equipment movement and adjustment. The storage tank 5 stores the antistatic coating liquid to ensure continuous liquid supply to the equipment. It is equipped with a pump to pump the liquid into the infusion hose 4. The rotating joint 6 allows the second infusion rigid tube 7 to rotate during the spraying process. The second infusion rigid tube 7 is used to further deliver antistatic coating liquid to the rotation assembly. The first gear 8 and the second gear 9 rotate the rotation motor 10 through gear meshing. The motion is transmitted to the second infusion tube 7, enabling the switching of the atomizing nozzles 12. The switching motor 10 provides power to drive the second gear 9 and the first gear 8, thereby achieving automatic switching of the atomizing nozzles 12. The multi-way valve 24 is used to distribute the antistatic coating liquid to multiple sets of drainage branch pipes 11. The drainage branch pipes 11 are used to transport the antistatic coating liquid from the multi-way valve 24 to the corresponding atomizing nozzles 12. The atomizing nozzles 12 are used to atomize the antistatic coating liquid into tiny particles, which are then uniformly sprayed onto the material surface to achieve an antistatic effect. Electromagnetic... Valve 13 controls the liquid flow of each set of drain branches 11, supporting independent control and alternating operation of the atomizing nozzles 12. Slip ring 15 supports and guides the movement of filter plate 25, while limiting ring 14 limits the position of slip ring 15. Magnets attract each other at their contact point. Guide rod 16 guides the relative movement of slip ring 15 and filter plate 25. Filter plate 25 filters impurities in the antistatic coating liquid, reducing the risk of complete blockage caused by impurities entering the atomizing nozzles 12, thus facilitating subsequent cleaning of filter plate 25. This restores the normal flow of liquid. Spring 17 provides elastic force, keeping filter plate 25 in its normal working position without external force. Pressure sensor 18 detects the position of filter plate 25. When filter plate 25 moves due to impurities, pressure sensor 18 is triggered, which in turn sends a signal to the controller to switch to an unblocked atomizing nozzle 12 of the same specification. This device is equipped with four sets of atomizing nozzles 12, with two sets of identical specifications. More sets of atomizing nozzles 12 can be added according to actual needs to adapt to different spraying tasks.

[0017] Furthermore, a lead screw 19 is rotatably connected inside the support frame 1. The lead screw 19 is connected to a slider 20 that is slidably connected to the support frame 1 via a lead screw nut pair. The connecting arm 2 is fixed to one end of the slider 20. An adjusting motor 21 that is driven by the lead screw 19 is installed at the top of the support frame 1. The adjustment motor 21 is started to drive the lead screw 19 to rotate. The lead screw 19 drives the slider 20 to slide linearly on the support frame 1 via the lead screw nut pair. The movement of the slider 20 drives the connecting arm 2 and the atomizing nozzle 12 to adjust their height, so that the spraying equipment can adapt to the height of different material surfaces and spraying requirements.

[0018] Furthermore, a stirring rod 22 is rotatably installed inside the storage tank 5, and a stirring motor 23 connected to the stirring rod 22 is installed at the top of the storage tank 5. An observation window is embedded on one side of the storage tank 5, and the observation window is made of transparent material. When the stirring motor 23 is started, it drives the stirring rod 22 to rotate and stir inside the storage tank 5. The rotation of the stirring rod 22 ensures that the components in the antistatic coating liquid are fully mixed, preventing precipitation or stratification, maintaining the uniformity and stability of the liquid, and through the observation window, the operator can check the liquid level and liquid status inside the storage tank 5 in real time.

[0019] The working principle of this utility model is as follows: The antistatic coating liquid in the storage tank 5 is pumped into the infusion hose 4 by a built-in pump. The infusion hose 4 provides a flexible connection, delivering the liquid to the first infusion rigid tube 3. The first infusion rigid tube 3 further delivers the liquid to the multi-way valve 24. The liquid in the multi-way valve 24 flows into a set of drain branches 11 that open the solenoid valve 13. As the spraying proceeds, the filter plate 25 inside the atomizing nozzle 12 continuously filters impurities in the antistatic coating liquid. When the filter plate 25 becomes clogged, and... Under the thrust of the coating liquid, it moves towards the slip ring 15 and triggers the pressure sensor 18 after moving to a certain position. The pressure sensor 18 sends a signal to the controller, which automatically switches to an unblocked atomizing nozzle 12 of the same specification to ensure the continuity of the spraying operation. At the same time, this equipment is equipped with four sets of atomizing nozzles 12, with each pair of sets having the same specifications. When different specifications of atomizing nozzles 12 need to be used, the switching motor 10 is controlled to drive the second liquid delivery tube 7 to rotate, which can switch the positions of multiple sets of atomizing nozzles 12.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An antistatic coating liquid self-cleaning spraying device comprising a support frame (1), characterized in that: A connecting arm (2) is connected to the support frame (1). A first infusion tube (3) is fixed to one end of the connecting arm (2). A storage tank (5) is placed on one side of the support frame (1). An infusion hose (4) is connected to one end of the first infusion tube (3). One end of the infusion hose (4) is connected to the storage tank (5). A second infusion tube (7) is connected to one end of the first infusion tube (3) through a rotating joint (6). A switching assembly is installed on the connecting arm (2). The switching assembly includes a first gear (8) and a switching motor (10). The first gear (8) is located at one end of the second infusion tube (7). A second gear (9) is meshed on one side of the first gear (8). The switching motor (10) is installed on the connecting arm (2), and the output end of the switching motor (10) is connected to the second gear (9) in a transmission connection. The switching assembly also includes a multi-way valve (24), which is connected to one end of the first infusion tube (3). The multi-way valve (24) has multiple sets of drainage branch pipes (11) connected around it at equal intervals. Each set of drainage branch pipes (11) is connected to an atomizing nozzle (12) at one end, and each set of drainage branch pipes (11) is equipped with a solenoid valve (13) at one end. The rotating assembly also includes a limiting ring (14) and a slip ring (15). The limiting ring (14) is fixed inside one end of the atomizing nozzle (12). The slip ring (15) is movably inserted into the atomizing nozzle (12). One end of the slip ring (15) is fixedly connected to multiple sets of guide rods (16), and the multiple sets of guide rods (16) slide through a filter plate (25) with the same outer diameter as the slip ring (15). A spring (17) is provided between the slip ring (15) and the filter plate (25). A limiting block is installed at the end of the guide rod (16) near the filter plate (25). A pressure sensor (18) is installed at the edge of the filter plate (25).

2. The antistatic coating liquid self-cleaning spray device according to claim 1, characterized by: The support frame (1) is rotatably connected to a lead screw (19), and the lead screw (19) is connected to a slider (20) that is slidably connected to the support frame (1). The connecting arm (2) is fixed to one end of the slider (20), and the top of the support frame (1) is equipped with an adjusting motor (21) that is induced to drive the lead screw (19).

3. The antistatic coating fluid self-cleaning spray coating apparatus according to claim 1, characterized by: The storage tank (5) is equipped with a stirring rod (22) that is rotatably mounted inside, and a stirring motor (23) that is connected to the stirring rod (22) is mounted on the top of the storage tank (5).

4. The antistatic coating fluid self-cleaning spray coating apparatus according to claim 1, characterized by: An observation window is embedded on one side of the liquid storage tank (5), and the observation window is made of transparent material.

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