An automatic ink applicator for an inductor tumbler
By integrating the oil filling assembly, air pressure regulating assembly, and air intake assembly, and using air pressure to drive ink output, the problems of complex components and uneven output in traditional oil supply systems are solved, achieving stable and uniform ink coating, and improving the automation efficiency and product quality of the inductor roller coating process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN SANTI MICROELECTRONICS TECH CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-06-09
Smart Images

Figure CN224335307U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the fields of ink supply and inductor roller coating technology, and in particular to an automatic ink dispensing device for an inductor roller coating machine. Background Technology
[0002] In the field of electronic component manufacturing, especially for inductors such as power inductors and magnetically wound wire inductors, the roller coating process is one of the key processes in the production of inductors. This process achieves functions such as anti-oxidation, insulation protection, and aesthetic enhancement by uniformly coating ink on the surface of the inductor. With the increasing demand for automated production, roller coating equipment needs to take into account high precision, high efficiency, and stability, and the performance of the oil supply system directly affects the coating quality and production efficiency.
[0003] In related technologies, in the traditional roller coating process, the inductor is usually fixed by a fixture and then driven by a conveyor belt to the bottom of the ink roller. After the ink roller surface is coated with ink, the ink is evenly spread to the inductor surface by rotation. The ink supply system usually relies on a mechanical pump to deliver the ink to the ink roller surface through physical pressure. For example, some equipment uses a gear pump to drive the ink flow.
[0004] However, traditional oil supply systems typically contain many components. For example, gear pump oil supply requires a motor, drive shaft, and seals, making installation and debugging difficult. It also requires frequent manual adjustments to the flow rate, making it difficult to precisely control the ink output, resulting in uneven coating thickness and affecting product qualification rate. Utility Model Content
[0005] To address the aforementioned problems, this application provides an automatic ink application device for an inductor roller coating machine.
[0006] The automatic ink application device for an inductor roller coating machine provided in this application adopts the following technical solution:
[0007] An automatic ink-dispensing device for an inductor roller coating machine is disposed above the ink roller and includes a frame, an ink-filling assembly, an air pressure regulating assembly, and an air inlet assembly. The ink-filling assembly and the air pressure regulating assembly are both fixed to the frame. The ink-filling assembly includes a container and a cover, with the cover covering the container. The air inlet assembly is fixed to the cover and communicates with the interior of the container. The cover has an ink dripping port, and the dripping port has an ink dripping needle fixed inside the port and communicating with the interior of the container. The air pressure regulating assembly includes an air valve and a control button, which are electrically connected. The air valve is programmed to trigger a periodic inflation action of the air inlet assembly, and the control button triggers the normally open state of the air valve.
[0008] By adopting the above technical solution, and integrating the oil filling component, air pressure regulating component, and air intake component on the frame, the number of components is reduced compared to the traditional oil supply system, thus lowering the difficulty of installation and debugging. The air valve in the air pressure regulating component can trigger the periodic inflation action of the air intake component into the container through a program-set time period. As the air pressure inside the container increases, the ink is pushed towards the dripping needle under the gas pressure. When the pressure is high enough, the ink flows out through the dripping needle in the form of fine droplets, realizing the periodic output of ink. When continuous output from the dripping needle is required, the control button can be pressed to trigger the normally open state of the air valve, realizing continuous air intake of the air pressure component, maintaining a stable air pressure inside the container, so that the ink can be continuously output from the dripping needle, significantly reducing the need for frequent manual flow adjustment.
[0009] Meanwhile, through the coordinated operation of the air pressure regulating component and the air intake component, combined with the time cycle set by the program, the amount of air entering the container each time it is filled can be controlled, thereby controlling the ink output and reducing the fluctuation of ink output. Due to the control of ink output and the connection between the dripping needle and the inside of the container, the ink can drip evenly and stably from the dripping needle onto the surface of the ink roller. The oil film thickness formed by the ink roller during rotation is uniform, effectively solving the problem of uneven coating thickness in traditional oil supply systems and effectively improving product quality.
[0010] Preferably, the air intake assembly includes a pressure head and an air pipe, the pressure head is fixedly connected to and communicates with the air pipe, the cover is provided with a pressure port, the air pipe is fixed in the pressure port, the air pipe passes through the pressure port to the inside of the container, and the air pipe communicates with the inside of the container.
[0011] By adopting the above technical solution, the fixed connection between the air pressure head and the air pipe reduces the complexity of the structure. At the same time, the air valve drives the air pressure head to inflate the container through the air pipe, so that a stable air pressure is formed inside the container, which pushes the ink to drip evenly onto the surface of the ink roller along the dripping needle. The aperture of the dripping needle and the air pressure work together to control the ink output. Meanwhile, the air valve can trigger the periodic inflation action of the air pressure head to realize the periodic output of ink from the dripping needle.
[0012] Preferably, the air intake assembly further includes a seal fixed to the side of the air pipe away from the air pressure head.
[0013] By adopting the above technical solution, the sealing element is fixed on the side of the air pipe away from the air pressure head, which is used to seal the connection between the air pipe and the container. While maintaining the gas input from the air pressure pipe into the container, it also reduces the occurrence of ink back seeping into the air pipe due to air pressure fluctuations, and reduces the entry of external impurities into the container, thus ensuring the cleanliness of the air path and the stability of ink output.
[0014] Preferably, the frame includes a machine frame and a first support frame, with both ends of the first support frame fixedly connected to the machine frame, and the air pressure regulating component fixed on the first support frame.
[0015] By adopting the above technical solution, the fixed connection between the frame and the first support frame provides a stable support platform for the air pressure regulating component, ensuring that the air pressure regulating component is less affected by displacement or vibration during operation. The air pressure regulating component is centrally integrated on the first support frame, simplifying the overall layout of the device.
[0016] Preferably, the frame further includes a second support frame, which is located below the first support frame and is fixedly connected to the first support frame. The second support frame is provided with a clearance opening. The oil filling assembly is fixedly fixed upside down on the second support frame. The cover abuts against the upper surface of the second support frame. The air pressure head and the oil drip needle are located in the clearance opening.
[0017] By adopting the above technical solution, the fixed connection between the second support frame and the first support frame forms a stable support structure for the oil filling component, ensuring the stability of the oil filling component when it is installed upside down. The clearance opening of the second support frame makes way for the air pressure head and the oil dripping needle, reducing external interference and optimizing space utilization. It simplifies the complex multi-component assembly process in the traditional oil supply system, reduces the difficulty of installation and debugging, and at the same time ensures that the ink drips evenly from the oil dripping needle under air pressure, improving the automation efficiency and coating quality of the roller coating process.
[0018] Preferably, the seal is higher than the ink level inside the container.
[0019] By adopting the above technical solution, the sealing element is set at the end of the air pipe and higher than the ink liquid level in the container, which can effectively reduce the backflow of ink into the air pipe due to air pressure fluctuations or shutdown, reduce the pollution of the air circuit and the risk of ink blockage. At the same time, this design reduces the direct contact between the ink and the end of the air pipe, reduces the probability of air bubble generation in the ink, and ensures the stability and continuity of ink output under air pressure drive, thereby improving the oil supply accuracy and automation efficiency of the roller coating process.
[0020] Preferably, the seal is configured as a flame suppressor.
[0021] By adopting the above technical solution and setting the sealing element as a flame suppressor, one-way isolation between the gas pipe and the container can be achieved. The flame suppressor only allows compressed air to flow into the container from the gas pipe in one direction, effectively reducing the backflow of ink into the gas pipe due to air pressure fluctuations, reducing the risk of gas path blockage and ink contamination. This design simplifies the sealing structure, ensuring the continuity and stability of ink output under air pressure drive, while also reducing the device failure rate and operating costs.
[0022] Preferably, there are two ink rollers located within the frame, one of which rotates while the other remains stationary, and the two ink rollers rotate and rub against each other.
[0023] By adopting the above technical solution, the two ink rollers are set up with one moving and one stationary, rotating and rubbing against each other to form an ink film of controllable thickness on the contact surface of the two ink rollers, realizing uniform ink transfer and coating. The stationary ink roller serves as the ink carrier substrate, while the rotating roller drives the ink to flow and be evenly distributed to the surface of the inductor through friction, reducing ink waste and local accumulation problems. The pneumatically driven oil supply works in conjunction with the two ink rollers, simplifying the equipment layout, improving coating uniformity and automation adaptability, and reducing maintenance costs.
[0024] In summary, this application includes at least one of the following beneficial technical effects:
[0025] 1. By integrating the oil filling assembly, air pressure regulating assembly, and air intake assembly on the integrated frame, air pressure drive replaces the traditional mechanical pump oil supply, reducing the complexity of installation and debugging. The air valve in the air pressure regulating assembly triggers the periodic inflation action of the air intake assembly through a program-set time period, realizing the periodic output of ink. At the same time, the control button can manually trigger the air valve to be in the normally open state, and the air pressure assembly maintains a stable air pressure in the container, realizing the continuous dripping of ink. Through the coordination of air pressure regulation and program control, combined with the connection between the oil dripping needle and the inside of the container, the ink output is ensured to be stable. This effectively solves the problems of uneven output and poor coating quality caused by the complex structure and frequent manual adjustment in the traditional oil supply system, and improves the automation efficiency and product qualification rate of the inductor roller coating process.
[0026] 2. The air intake assembly simplifies the structure by connecting the air pressure head to the air pipe, significantly reducing the difficulty of installation and debugging and maintenance costs. The air valve drives the air pressure head to inflate the container through the air pipe, forming a stable air pressure to push the ink to drip evenly onto the surface of the ink roller along the dripping needle. The orifice diameter of the dripping needle and the air pressure work together to control the ink output. At the same time, the air valve can trigger the periodic inflation action of the air pressure head, realizing the intermittent and precise output of ink.
[0027] 3. By installing a seal on the side of the air pipe away from the pressure head, the connection between the air pipe and the container is sealed. This ensures that gas is stably input from the pressure head into the container and effectively reduces the backflow of ink into the air pipe due to pressure fluctuations, thereby reducing the risk of contamination and blockage in the air path. At the same time, the seal can also prevent external impurities from entering the container, maintain the purity of the ink, ensure the continuity and stability of ink output under air pressure, and improve the automation efficiency and coating quality of the roller coating process. Attached Figure Description
[0028] Figure 1 This is a structural schematic diagram of an embodiment of this application.
[0029] Figure 2 This is a schematic diagram of the structure of the first support frame, the second support frame, the oil filling assembly, the air pressure regulating assembly, and the air intake assembly in the embodiments of this application.
[0030] Figure 3 This is a schematic diagram of the structure of the first support frame, the second support frame, the oil filling assembly, the air pressure regulating assembly, and the interior of the container in an embodiment of this application.
[0031] Figure 4 This is a schematic diagram of the structure of the first support frame, the second support frame, the oil filling assembly, the air pressure regulating assembly, and the interior of the container in an embodiment of this application.
[0032] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Machine frame; 12. First support frame; 13. Second support frame; 131. Clearance port; 2. Oil filling assembly; 21. Container; 22. Cover; 221. Oil drip port; 222. Air pressure port; 3. Air pressure regulating assembly; 31. Air valve; 32. Control button; 4. Air inlet assembly; 41. Air pressure head; 42. Air pipe; 43. Seal; 5. Oil drip needle; 6. Ink roller. Detailed Implementation
[0033] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.
[0034] This application discloses an automatic ink application device for an inductor roller coating machine. (Refer to...) Figure 1 and Figure 2 An automatic ink-dispensing device for an inductor roller coating machine includes a frame 1, an ink-filling assembly 2, an air pressure regulating assembly 3, and an air intake assembly 4. The ink-filling assembly 2 and the air pressure regulating assembly 3 are both fixed on the frame 1. This arrangement ensures the stability of the entire device structure, preventing the components from shaking or shifting during operation, which is beneficial for the normal operation of the device. The air intake assembly 4 is fixed on the cover 22 of the ink-filling assembly 2 and is connected to the inside of the container 21. This allows gas to be injected into the container 21 through the air intake assembly 4, thereby regulating the air pressure inside the container 21.
[0035] Furthermore, the air pressure regulating component 3 includes an air valve 31 and a control button 32. The air valve 31 and the control button 32 are electrically connected. The air valve 31 can trigger the periodic inflation action of the air intake component 4 by setting a time period through a program. The control button 32 can trigger the normally open state of the air valve 31.
[0036] This demonstrates that by integrating the oil filling assembly 2, air pressure regulating assembly 3, and air intake assembly 4 onto the frame 1, the number of components is reduced compared to traditional oil supply systems, lowering the difficulty of installation and debugging. The air valve 31 in the air pressure regulating assembly 3, through a programmed time period, can trigger the periodic inflation action of the air intake assembly 4 into the container 21. As the air pressure inside the container 21 increases, the ink is pushed towards the dripping needle 5 under the action of gas pressure. When the pressure is high enough, the ink flows out through the dripping needle 5 in the form of fine droplets, achieving periodic ink output. When continuous output from the dripping needle 5 is required, the control button 32 can be pressed to trigger the normally open state of the air valve 31, achieving continuous air intake of the air pressure assembly, maintaining a stable air pressure inside the container 21, so that the ink can be continuously output from the dripping needle 5, significantly reducing the need for frequent manual flow adjustments.
[0037] To further explain, by working together with the air pressure regulating component 3 and the air intake component 4, and combined with the time cycle set by the program, the amount of air entering the container 21 each time it is filled can be controlled, thereby controlling the output of ink and reducing the fluctuation of ink output. Due to the control of ink output and the connection between the dripping needle 5 and the inside of the container 21, the ink can drip evenly and stably from the dripping needle 5 onto the surface of the ink roller 6. The oil film formed by the ink roller 6 during rotation is of uniform thickness, which effectively solves the problem of uneven coating thickness in traditional oil supply systems and effectively improves product quality.
[0038] Furthermore, the frame 1 includes a frame 11, a first support frame 12, and a second support frame 13. The two ends of the first support frame 12 are fixedly connected to the frame 11. The air pressure regulating component 3 is fixed on the first support frame 12. The frame 11 is the supporting structure of the entire device. The first support frame 12 is used to support the air pressure regulating component 3. The first support frame 12 has a flat plate structure. The second support frame 13 is located below the first support frame 12 and is fixedly connected to the first support frame 12. The oil filling component 2 is inverted and fixed on the second support frame 13. The cover 22 abuts against the upper surface of the second support frame 13.
[0039] Reference Figure 3 and Figure 4 Correspondingly, the oil filling assembly 2 includes a container 21 and a cover 22. Both the cover 22 and the container 21 are cylindrical in shape. The container 21 is used to hold ink, and the cover 22 is used to cover the container 21 to seal it, thereby reducing ink leakage and preventing external impurities from entering the container 21.
[0040] Furthermore, the cover 22 is provided with an oil dripping nozzle 221, and an oil dripping needle 5 is fixedly installed inside the oil dripping nozzle 221. The oil dripping needle 5 is connected to the inside of the container 21. In this way, under the action of air pressure, the ink will drip out from the oil dripping needle 5. The inner diameter of the oil dripping needle 5 will affect the dripping speed of the ink. Different inner diameters are suitable for different painting needs.
[0041] Correspondingly, the air valve 31 can precisely control the time and interval of air intake of the air intake component 4 according to the time period set by the program. The control button 32 is set as a mechanical button. The operator can trigger the normally open state of the air valve 31 by pressing the control button 32 so that the air valve 31 can continuously drive the air intake component 4 to fill the container 21 with air in special circumstances. The air valve 31 and the control button 32 are electrically connected. The air valve 31 and the control button 32 work together to achieve precise adjustment of the air pressure in the container 21.
[0042] Specifically, the air valve 31 can be programmed to drive the air intake component 4 to periodically fill the container 21 with air at three-second intervals within one hour. The air pressure inside the container 21 increases, and the ink is pushed towards the dripping needle 5 under the action of gas pressure. When the pressure is high enough, the ink flows out through the dripping needle 5 in the form of small droplets. At the same time, when a large amount of ink is needed, continuous air filling is required. The operator can trigger the normally open state of the air valve 31 by pressing the control button 32, so that the air valve 31 drives the air pressure port 222 to continuously fill the container 21 with air through the air pipe 42, maintain a stable air pressure inside the container 21, and push the ink to continuously drip down along the dripping needle 5 onto the surface of the ink roller 6.
[0043] Furthermore, the air intake assembly 4 includes a pressure head 41, an air pipe 42, and a seal 43. The pressure head 41 is fixedly connected to and communicates with the air pipe 42. The cover 22 is provided with a pressure port 222. The air pipe 42 is fixed on the pressure port 222 and passes through the pressure port 222 to the inside of the container 21. The air pipe 42 communicates with the inside of the container 21. The pressure head 41 is located on the outside of the container 21. The pressure head 41 is used to connect to the air source and introduce gas into the air pipe 42. The air pipe 42 is used to deliver gas to the inside of the container 21.
[0044] It should be noted that the second support frame 13 is also provided with a clearance port 131, where the air pressure head 41 and the oil dripping needle 5 are located. The clearance port 131 of the second support frame 13 provides clearance for the air pressure head 41 and the oil dripping needle 5, reducing external interference and optimizing space utilization. This simplifies the complex multi-component assembly process in the traditional oil supply system, reduces the difficulty of installation and debugging, and ensures that the ink drips evenly from the oil dripping needle 5 under air pressure drive, thereby improving the automation efficiency and coating quality of the roller coating process.
[0045] Meanwhile, the side of the air pipe 42 away from the air pressure head 41 is fixedly connected to the seal 43. The seal 43 is set as a flame suppressor. The flame suppressor can realize one-way isolation between the air pipe 42 and the container 21. The flame suppressor only allows compressed air to flow into the container 21 from the air pipe 42 in one direction, effectively reducing the backflow of ink into the air pipe 42 due to air pressure fluctuations or shutdown, reducing the risk of air path blockage and ink contamination. This design simplifies the sealing structure, ensuring the continuity and stability of ink output under air pressure drive, and reducing the device failure rate and operating cost.
[0046] Furthermore, since the oil filling assembly 2 is installed upside down on the second support frame 13, when the container 21 is upside down, the seal 43 is higher than the ink liquid level in the container 21. This can effectively reduce the backflow of ink into the air pipe 42 due to air pressure fluctuations or machine shutdown, thereby reducing the risk of air path contamination and blockage. At the same time, this design reduces the direct contact between the ink and the end of the air pipe 42, reducing the probability of bubble generation and ensuring the stability and continuity of ink output under air pressure drive, thereby improving the oil supply accuracy and automation efficiency of the roller coating process.
[0047] In addition, two ink rollers 6 are provided, located within the frame 11. One ink roller 6 rotates while the other remains stationary. The two ink rollers 6 are arranged in a rotating-stationary configuration, rotating and rubbing against each other. The rotating ink roller 6 can evenly distribute the ink dripped onto the surface, forming a thin oil film with a thickness of 0.05-0.1mm on the contact surface of the two ink rollers 6. The stationary ink roller 6 plays an auxiliary role in coating. Through the synergistic effect of the two ink rollers 6, the uniformity and adhesion of ink coating are further improved, achieving uniform ink transfer and coating, reducing ink waste and local accumulation problems. The pneumatically driven oil supply and the synergistic effect of the two ink rollers 6 simplify the equipment layout, improve coating uniformity and automation adaptability, and reduce maintenance costs.
[0048] The implementation principle of an automatic ink application device for an inductor roller coating machine according to an embodiment of this application is as follows:
[0049] The oil filling assembly is inverted and fixed to the second support frame to ensure that the cap tightly covers the container and reduces ink leakage.
[0050] The air tube is fixedly connected to the air pressure head and is fixed to the air pressure port of the cover. The air tube enters the interior of the container through the air pressure port to ensure that the air tube is connected to the interior of the container. A flame extinguisher is fixedly installed at the end of the air tube away from the air pressure head. The flame extinguisher is higher than the ink level in the container. The flame extinguisher effectively reduces the ink from entering the air tube due to air pressure.
[0051] The air pressure regulating component is installed on the first support frame. The air valve is electrically connected to the control button. The air valve can trigger the periodic inflation action of the air intake component through a program-set time period. The control button can trigger the normally open state of the air valve, thereby realizing precise control of the ink output and automation of the painting process.
[0052] Meanwhile, the cover is equipped with an oil drip nozzle, the oil drip needle is fixed inside the oil drip nozzle and is connected to the inside of the container, and two ink rollers are set inside the frame to receive the ink dripping from the oil drip needle.
[0053] The time cycle of the air valve is set by the program to trigger the periodic inflation action of the air pressure port. The inflation is set to occur every three seconds per hour to control the ink output.
[0054] Furthermore, by pressing the control button, the normally open state of the air valve is triggered, allowing the air intake assembly to continuously fill with air, and the ink output can be adjusted as needed.
[0055] When the gas valve is triggered, gas is injected into the container through the gas pressure head. Due to the inverted container and the effect of the flame extinguisher, the gas can only enter the container and the ink cannot enter the gas pipe. The injected gas increases the gas pressure inside the container, forcing the ink to drip out through the drip needle set in the drip nozzle and onto the ink roller. The ink roller evenly coats the ink onto the surface of the inductor it passes through, forming an oil film of the required thickness.
[0056] An automatic ink dispensing device for an inductor roller coating machine simplifies the system structure and reduces the number of parts by integrating an oil filling assembly, an air pressure regulating assembly, and an air intake assembly onto a frame. This reduces the difficulty of installation and debugging. Furthermore, by setting the time cycle of the air valve through a program and triggering the normally open state using a control button, the device achieves automated control of ink output, reducing the need for frequent manual adjustments to the ink flow rate and improving production efficiency.
[0057] Meanwhile, the amount of gas injected into the container is controlled by the air pressure regulating component, thereby accurately controlling the ink output. The use of a flame extinguisher ensures that ink does not enter the gas pipe, improving the accuracy of control. By adjusting the air pressure, the amount of ink dripping onto the ink roller can be precisely controlled, thereby ensuring that the oil film thickness coated on the inductor is uniform. At the same time, the design of the two ink rollers, one moving and one stationary, also ensures that the ink is evenly distributed on the surface of the inductor, effectively solving the problem of uneven coating thickness and improving product quality.
[0058] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An automatic ink dispensing device for an inductor roller coating machine, disposed above an ink roller (6), characterized in that, The system includes a frame (1), an oil filling assembly (2), a pressure regulating assembly (3), and an air intake assembly (4). The oil filling assembly (2) and the pressure regulating assembly (3) are both fixed to the frame (1). The oil filling assembly (2) includes a container (21) and a cover (22). The cover (22) covers the container (21). The air intake assembly (4) is fixed to the cover (22) and communicates with the interior of the container (21). The cover (22) is provided with an oil drip nozzle (221). The oil port (221) is provided with an oil drip needle (5), which is fixed inside the oil port (221). The oil drip needle (5) is connected to the inside of the container (21). The air pressure regulating component (3) includes an air valve (31) and a control button (32). The air valve (31) and the control button (32) are electrically connected. The air valve (31) is programmed to set a time period to trigger the periodic inflation action of the air intake component (4). The control button (32) is used to trigger the normally open state of the air valve (31).
2. The automatic ink application device for an inductor roller coating machine according to claim 1, characterized in that, The air intake assembly (4) includes a pressure head (41) and an air pipe (42). The pressure head (41) is fixedly connected to and communicates with the air pipe (42). The cover (22) is provided with a pressure port (222). The air pipe (42) is fixed inside the pressure port (222). The air pipe (42) passes through the pressure port (222) to the inside of the container (21). The pressure head (41) is located on the outside of the container (21). The air pipe (42) communicates with the inside of the container (21).
3. An automatic ink application device for an inductor roller coating machine according to claim 2, characterized in that, The air intake assembly (4) also includes a seal (43) fixed to the side of the air pipe (42) away from the air pressure head (41).
4. An automatic ink application device for an inductor roller coating machine according to claim 2, characterized in that, The frame (1) includes a frame (11) and a first support frame (12). The two ends of the first support frame (12) are fixedly connected to the frame (11), and the air pressure regulating component (3) is fixed on the first support frame (12).
5. An automatic ink dispensing device for an inductor roller coating machine according to claim 4, characterized in that, The frame (1) also includes a second support frame (13), which is located below the first support frame (12). The second support frame (13) is fixedly connected to the first support frame (12). The second support frame (13) is provided with a clearance opening (131). The oil filling assembly (2) is fixedly inverted on the second support frame (13). The cover (22) abuts against the upper surface of the second support frame (13). The air pressure head (41) and the oil dripping needle (5) are located in the clearance opening (131).
6. An automatic ink application device for an inductor roller coating machine according to claim 3, characterized in that, The seal (43) is higher than the ink level inside the container (21).
7. An automatic ink dispensing device for an inductor roller coating machine according to claim 3, characterized in that, The seal (43) is configured as a flame suppressor.
8. An automatic ink dispensing device for an inductor roller coating machine according to claim 4, characterized in that, Two ink rollers (6) are provided, and the two ink rollers (6) are located inside the frame (11). One ink roller (6) rotates while the other ink roller (6) remains stationary. The two ink rollers (6) rotate and rub against each other.