Automatic feeding device of coating machine

Abstract

An automatic feeding device of a coating machine relates to the technical field of slurry feeding devices and comprises a frame, a mixing drum is mounted on one side of the upper end of the frame, a feeding pipe is arranged below the front end of the mixing drum, an iron removal tank is mounted at one end of the feeding pipe, a feeding diaphragm pump is mounted at the outlet end of the iron removal tank, and a feeding pipe is mounted at the upper end of the feeding diaphragm pump. The outlet end of the feeding diaphragm pump is provided with a filtering tank, the outlet end of the filtering tank is connected with an ink box of the coating machine, a backflow pipe is arranged above the front end of the stirring barrel, the inlet end of the backflow pipe is connected with the ink box of the coating machine, and the middle position of the backflow pipe is provided with a backflow diaphragm pump; according to the scheme, the problem that the coating effect is affected due to the fact that impurities easily exist in slurry in the ink box is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of slurry feeding devices, specifically an automatic feeding device for a coating machine. Background Technology

[0002] The slurry feeding device for a coating machine is a system used to transport slurry from a storage container to the coating head of the coating machine, ensuring a uniform and stable supply of slurry to the coating section. It typically consists of components such as a storage tank, a feeding pump, a mixer, a filter, and control valves to achieve automatic slurry supply, filtration, and regulation, thereby ensuring coating quality and production efficiency.

[0003] For example, the Chinese authorized patent CN220900868U, entitled "An Automatic Batching and Feeding Device for a Coating Machine," includes a paint batching bin. A motor is located at one end of the top surface of the paint batching bin, and a gear set is located at the lower end of the motor. A rotating wheel is mounted on the gear set, and a belt is mounted on the rotating wheel. A rotating rod is located at the lower end of the rotating wheel, and a stirring gear is located at the lower end of the rotating rod. A stirring rod is mounted on the stirring gear. In this invention, the batched materials enter the feeding hopper. An automatic weighing scale measures the amount of batched materials based on the weight changes inside the feeding hopper. When the mixing ratio of the paint batched materials in the feeding hopper reaches a certain value, the feeding valve is opened to introduce the paint batched materials into the paint batching bin. The motor is then started, causing the gear set to rotate, which in turn drives the rotating wheel. The rotating wheel drives the belt to rotate the driven wheel, causing the rotating rod at the lower end of both the rotating wheel and the driven wheel to rotate.

[0004] While the existing technology can achieve the supply and delivery of slurry, the slurry inside the ink cartridge is prone to impurities due to the one-way connection between the feeding device and the cartridge, which affects the coating effect and does not meet the current requirements. Therefore, we propose an automatic feeding device for coating machines. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic feeding device for a coating machine, so as to solve the problem mentioned in the background art that, since the feeding device and the material box are unidirectionally connected, impurities are easily present in the slurry inside the ink cartridge, thus affecting the coating effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic feeding device for a coating machine, comprising a frame, a mixing drum mounted on one side of the upper end of the frame, a feeding pipe disposed below the front end of the mixing drum, an iron removal tank mounted at one end of the feeding pipe, a feeding diaphragm pump mounted at the outlet end of the iron removal tank, a filter tank mounted at the outlet end of the feeding diaphragm pump, and the outlet end of the filter tank connected to the ink cartridge of the coating machine, a return pipe disposed above the front end of the mixing drum, the inlet end of the return pipe connected to the ink cartridge of the coating machine, and a return diaphragm pump mounted at the middle position of the return pipe.

[0007] Preferably, the upper end of the mixing drum is provided with a top cover, and a locking buckle is provided between the mixing drum and the top cover, and four locking buckles are provided. A pneumatic motor is installed at the middle position of the upper end face of the mixing drum, and the rotating shaft of the pneumatic motor extends into the interior of the mixing drum. A serrated agitator is installed on the rotating shaft of the pneumatic motor.

[0008] Preferably, a liquid level sensor is provided on one side of the upper end face of the top cover, and the detection end of the liquid level sensor extends into the interior of the stirring drum, and a viewing window is provided on the rear side of the upper end face of the top cover.

[0009] Preferably, one side of the filter tank is provided with multiple filter screens, and the mesh size of the filter screens decreases sequentially from the liquid inlet to the liquid outlet. Activated carbon particles are provided on the other side of the filter tank. A backflushing inlet pipe is provided on one side of the bottom of the filter tank, and a backflushing outlet pipe is provided on the other side of the bottom of the filter tank. Valves are installed on the outside of both the backflushing inlet pipe and the backflushing outlet pipe.

[0010] Preferably, the inner wall of the iron removal can is made of metal, and an electromagnet is installed on the outer wall of the iron removal can.

[0011] Preferably, a handle is welded and fixed to the rear end of the frame, and casters are installed at the four corners of the bottom of the frame.

[0012] Preferably, a ball valve is installed at one end of the feeding pipe near the mixing drum.

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

[0014] 1. This utility model utilizes a feeding device to continuously circulate the slurry. The outlet end of the feeding pipe on the mixing drum is connected to the ink cartridge of the coating machine. By activating the feeding diaphragm pump, when the diaphragm moves to one side, the volume of the working chamber increases, creating negative pressure, and liquid is drawn in. When the diaphragm moves to the other side, the volume of the working chamber decreases, the pressure increases, and liquid is discharged, thus achieving the conveying of the slurry inside the mixing drum. Similarly, one end of the return pipe on the mixing drum is also connected to the ink cartridge. Under the action of the return diaphragm pump, the slurry in the ink cartridge is sent back to the mixing drum. The slurry returning to the mixing drum is stirred again, iron removed, and filtered before returning to the ink cartridge. The slurry continuously circulates between the mixing drum and the ink cartridge of the coating machine. Through multiple stirrings, the uniformity and consistency of the slurry can be significantly improved, ensuring stable coating quality. The continuous circulation and stable delivery of the slurry ensures continuous operation of the coating machine and improves production efficiency. The precise control of the diaphragm pump also makes the delivery of the slurry more reliable and efficient.

[0015] 2. This utility model incorporates a filter tank. The slurry transported from the mixing drum enters the filter tank and first passes through a filter layer with larger mesh sizes. This layer primarily intercepts large particles and impurities in the slurry, such as undissolved solids and fibers. The slurry, after this initial filtration, then enters a filter layer with smaller mesh sizes. This layer further intercepts smaller particles and impurities, improving the purity of the slurry. Finally, the slurry passes through an activated carbon layer. The activated carbon utilizes its strong adsorption capacity to remove odors, residual chlorine, heavy metal ions, and other chemical substances from the slurry. Simultaneously, it further adsorbs residual small particles and impurities. The clean slurry reduces wear and tear and the risk of malfunction in subsequent equipment, extending the equipment's service life and allowing for automatic feeding without stopping the machine.

[0016] 3. This utility model incorporates an iron removal tank. The slurry transported from the mixing drum enters the iron removal tank. When the electromagnet is energized, according to the principle of electromagnetic induction, the current passing through the electromagnet generates a magnetic field. As the slurry flows inside the iron removal tank, the ferromagnetic impurities are subjected to the force of the magnetic field and are quickly adsorbed onto the inner wall of the iron removal tank. At the same time, the non-magnetic substances in the slurry are not affected by the magnetic field and continue to maintain their original flow direction. Through the strong magnetic field of the electromagnet, the ferromagnetic impurities in the slurry are effectively removed, improving the purity and quality of the slurry. Attached Figure Description

[0017] Figure 1 This is a side view of the present invention;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 This is a top view of the present invention;

[0020] Figure 4 This is a schematic diagram of the internal structure of the filter tank of this utility model;

[0021] Figure 5 This is a schematic diagram of the internal structure of the iron removal tank of this utility model.

[0022] In the diagram: 1. Frame; 2. Handle; 3. Top cover; 4. Lock; 5. Pneumatic motor; 6. Feed port; 7. Liquid level sensor; 8. Return pipe; 9. Feed pipe; 10. Ball valve; 11. Feed diaphragm pump; 12. Mixing drum; 13. Filter tank; 14. Casters; 15. Return diaphragm pump; 16. Viewing window; 17. Serrated agitator; 18. Iron removal tank; 19. Filter screen; 20. Activated carbon granules; 21. Backflush inlet pipe; 22. Backflush outlet pipe; 23. Electromagnet. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-5 An embodiment of this utility model provides an automatic feeding device for a coating machine, comprising a frame 1, a mixing drum 12 mounted on one side of the upper end of the frame 1, a feeding pipe 9 disposed below the front end of the mixing drum 12, a ball valve 10 mounted on one end of the feeding pipe 9 near the mixing drum 12, an iron removal canister 18 mounted on one end of the feeding pipe 9, a feeding diaphragm pump 11 mounted at the outlet end of the iron removal canister 18, a filter canister 13 mounted at the outlet end of the feeding diaphragm pump 11, and the outlet end of the filter canister 13 connected to the ink cartridge of the coating machine, a return pipe 8 disposed above the front end of the mixing drum 12, the inlet end of the return pipe 8 connected to the ink cartridge of the coating machine, a return diaphragm pump 15 mounted at the middle position of the return pipe 8, a handle 2 welded and fixed to the rear end of the frame 1, and casters 14 mounted at the four corners of the bottom of the frame 1.

[0025] The slurry continuously circulates between the mixing drum 12 and the ink cartridge of the coating machine. Through multiple agitations, the uniformity and consistency of the slurry are significantly improved, ensuring stable coating quality. The continuous circulation and stable delivery of the slurry ensures continuous operation of the coating machine and improves production efficiency. Precise control of the diaphragm pump also makes slurry delivery more reliable and efficient.

[0026] Please see Figure 1 and Figure 2 The upper end of the mixing drum 12 is provided with a top cover 3, and a locking buckle 4 is provided between the mixing drum 12 and the top cover 3. There are four locking buckles 4. A pneumatic motor 5 is installed at the middle position of the upper end face of the mixing drum 12, and the rotating shaft of the pneumatic motor 5 extends into the interior of the mixing drum 12. A sawtooth stirrer 17 is installed on the rotating shaft of the pneumatic motor 5.

[0027] By turning on the pneumatic motor 5, the pressure energy of the compressed air is converted into rotational mechanical energy through the expansion of the compressed gas. This conversion process enables the pneumatic motor to output torque, drive the actuator to rotate, and thus drive the rotating shaft on the output shaft to rotate, thereby realizing the high-speed rotation of the sawtooth agitator 17. During the rotation, the slurry inside is mixed evenly.

[0028] Please see Figure 1 and Figure 3A liquid level sensor 7 is provided on one side of the upper end face of the cover 3, and the detection end of the liquid level sensor 7 extends into the interior of the stirring tank 12. A viewing window 16 is provided on the rear side of the upper end face of the cover 3. The condition inside the stirring tank 12 can be observed at any time through the viewing window 16. A capacitive liquid level sensor 7 is installed, and the measured value is not affected by the shape and pressure of the container of the liquid being measured. It has complete overcurrent, overvoltage, and power polarity protection and can measure any conductive medium.

[0029] Please see Figure 4 Multiple filter screens 19 are provided on one side of the filter tank 13, and the mesh size of the filter screens 19 decreases sequentially from the inlet to the outlet. Activated carbon particles 20 are provided on the other side of the filter tank 13. A backflushing inlet pipe 21 is provided on one side of the bottom of the filter tank 13, and a backflushing outlet pipe 22 is provided on the other side of the bottom of the filter tank 13. Valves are installed on the outside of both the backflushing inlet pipe 21 and the backflushing outlet pipe 22. Through multi-stage filtration and activated carbon adsorption, impurities and harmful substances in the slurry are effectively removed, improving the purity and stability of the slurry, which helps to improve the performance and quality of the final product. When cleaning the filter tank 13, the inlet and outlet of the filter tank 13 are closed, and the backflushing inlet pipe 21 is connected to the cleaning water pipe. The reverse water flow is used to clean the impurities in the filter screens 19 and activated carbon particles 20, and the impurities are discharged from the backflushing outlet pipe 22.

[0030] The slurry conveyed from the mixing drum 12 enters the filter tank 13 and first passes through a filter layer with larger mesh 19. This layer mainly intercepts large particles and particulate matter in the slurry, such as undissolved solids and fibers. After preliminary filtration, the slurry then enters a filter layer with smaller mesh, which further intercepts smaller particles and impurities, improving the purity of the slurry. Finally, the slurry passes through an activated carbon layer 20. The activated carbon utilizes its strong adsorption capacity to remove odors, residual chlorine, heavy metal ions, and other chemical substances from the slurry.

[0031] Please see Figure 5 The inner wall of the iron removal tank 18 is made of metal, and an electromagnet 23 is installed on the outer wall of the iron removal tank 18. When the slurry is conveyed from the mixing drum 12 into the iron removal tank 18, the electromagnet 23 is energized. According to the principle of electromagnetic induction, the current passes through the electromagnet to generate a magnetic field. When the slurry flows inside the iron removal tank 18, the ferromagnetic impurities in it will be subjected to the force of the magnetic field and will be quickly adsorbed on the inner wall of the iron removal tank. At the same time, the non-magnetic substances in the slurry will not be affected by the magnetic field and will continue to maintain their original flow direction. Through the strong magnetic field of the electromagnet, the ferromagnetic impurities in the slurry are effectively removed.

[0032] In use, the outlet end of the feed pipe 9 on the mixing drum 12 is connected to the ink cartridge of the coating machine. By turning on the feed diaphragm pump 11, when the diaphragm moves to one side, the volume of the working chamber increases, forming a negative pressure, and the liquid is drawn in. When the diaphragm moves to the other side, the volume of the working chamber decreases, the pressure increases, and the liquid is discharged, thus realizing the conveying of the slurry inside the mixing drum 12. Similarly, one end of the return pipe 8 on the mixing drum 12 is also connected to the ink cartridge. Under the action of the return diaphragm pump 15, the slurry in the ink cartridge is sent back to the mixing drum 12. The slurry that returns to the mixing drum 12 is stirred again, iron removed, and filtered before returning to the inside of the ink cartridge. The slurry continuously circulates between the mixing drum 12 and the ink cartridge of the coating machine.

[0033] 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 coater automatic feed device comprising a carriage (1), characterized in that: The upper end of the frame (1) is provided with a stirring drum (12), and the lower end of the front end of the stirring drum (12) is provided with a feeding pipe (9), one end of the feeding pipe (9) is provided with an iron removal tank (18), the outlet end of the iron removal tank (18) is provided with a feeding diaphragm pump (11), the outlet end of the feeding diaphragm pump (11) is provided with a filter tank (13), and the outlet end of the filter tank (13) is connected with an ink box of a coating machine, the upper end of the front end of the stirring drum (12) is provided with a return pipe (8), the inlet end of the return pipe (8) is connected with the ink box of the coating machine, and the return diaphragm pump (15) is arranged at the middle position of the return pipe (8).

2. The automatic material supply device for a coating machine according to claim 1, wherein: The upper end of the stirring drum (12) is provided with an upper cover (3), and the stirring drum (12) and the upper cover (3) are provided with four buckles (4), the middle position of the upper end surface of the stirring drum (12) is provided with a pneumatic motor (5), and the rotating shaft of the pneumatic motor (5) extends into the interior of the stirring drum (12), and the rotating shaft of the pneumatic motor (5) is provided with a sawtooth-shaped stirrer (17).

3. The automatic material supply device for a coating machine according to claim 2, wherein: The upper end surface of the upper cover (3) is provided with a liquid level sensor (7), and the detection end of the liquid level sensor extends into the interior of the stirring drum (12), and the rear side of the upper end surface of the upper cover (3) is provided with a window hole (16).

4. The automatic material supply device for a coating machine according to claim 1, wherein: The inside of the filter tank (13) is provided with a plurality of filter screens (19), the mesh size of the filter screens (19) decreases from the liquid inlet to the liquid outlet, the other side of the inside of the filter tank (13) is provided with activated carbon particles (20), one side of the bottom of the filter tank (13) is provided with a backflush inlet pipe (21), the other side of the bottom of the filter tank (13) is provided with a backflush outlet pipe (22), and the valve is arranged outside the backflush inlet pipe (21) and the backflush outlet pipe (22).

5. The automatic material supply device for a coating machine according to claim 4, wherein: The inner wall of the iron removal tank (18) is made of metal, and the outer wall of the iron removal tank (18) is provided with an electromagnet (23).

6. The automatic material supply device for a coating machine according to claim 1, wherein: The rear end of the frame (1) is welded and fixed with a handle (2), and the four corners of the bottom of the frame (1) are provided with universal wheels (14).

7. The automatic material supply device for a coating machine according to claim 1, wherein: The end of the feeding pipe (9) close to the stirring drum (12) is provided with a ball valve (10).

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