Ink supply system driving control board applied to ink-jet printer

Abstract

The invention discloses an ink supply system driving control board applied to an ink-jet printer, which comprises a comprehensive control board card, an ink supply control module, a negative pressure control module, an ink pressing control module, a heating control module and an ink overflow detection module, the ink supply control module, the negative pressure control module, the ink pressing control module, the heating control module and the ink overflow detection module are all installed and connected to the comprehensive control board card, the ink supply control module comprises an ink supply pump and an ink box detection device, the comprehensive control board card is connected with and controls the ink supply pump, and the ink box detection device is connected with the comprehensive control board card. High-precision control over the ink supplying and jetting process is achieved, the definition and stability of the jet printing effect are ensured, the requirement of modern production for high-quality code spraying is met, the design and control strategy of an ink supplying system is optimized, accurate supplying and jetting of ink are achieved, unnecessary waste and pollution are reduced, and meanwhile the overall energy consumption is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of inkjet coding, and in particular to an ink supply system drive control board applied to an inkjet coding machine. Background Art

[0002] The background technology of the present invention is rooted in the rapid development of modern inkjet technology and its urgent demand for high efficiency, precision, flexibility, energy saving and environmental protection. With the increasing dependence of packaging, pharmaceutical, food processing and other industries on automated production lines, the performance and reliability of inkjet printers have become key factors affecting production efficiency and product quality. Although the traditional inkjet printer ink supply system drive control board meets the basic printing needs to a certain extent, it gradually reveals its limitations when facing higher-level requirements such as high-precision inkjet, diversified production, energy saving and environmental protection.

[0003] Specifically, the traditional ink supply system drive control board often has the problem of low precision, and cannot accurately control the ink supply and injection process, resulting in the printing effect being difficult to meet high quality standards; at the same time, lack of flexibility is also a major drawback, and it is difficult to quickly adapt to the size, material and speed changes on different production lines, limiting the flexible adjustment and upgrade of the production line. In addition, problems such as high ink consumption, high maintenance costs, poor stability and poor interactivity are also widespread, which not only increases the operating costs of enterprises, but also affects production efficiency and user experience.

[0004] It is particularly noteworthy that some traditional technologies are unable to cope with special production environments or special printing requirements, and lack sufficient adaptability and innovation. In view of the above technical bottlenecks, the present invention proposes an ink supply system drive control board for inkjet printers to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to solve the above-mentioned technical problems and provide an ink supply system drive control board for an inkjet printer. The present invention realizes high-precision control of the ink supply and injection process, ensures the clarity and stability of the printing effect, meets the needs of modern production for high-quality inkjet printing, optimizes the design and control strategy of the ink supply system, realizes accurate ink supply and injection, reduces unnecessary waste and pollution, and reduces overall energy consumption.

[0006] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an ink supply system drive control board applied to an inkjet printer, including an integrated control board, an ink supply control module, a negative pressure control module, an ink pressure control module, a heating control module and an ink overflow detection module, the ink supply control module, the negative pressure control module, the ink pressure control module, the heating control module and the ink overflow detection module are all installed and connected on the integrated control board, the ink supply control module includes an ink supply pump and an ink cartridge detection device, the integrated control board is connected to control the ink supply pump, and the ink cartridge detection device is connected to the integrated control board.

[0007] Preferably, the ink cartridge detection device includes a secondary ink cartridge and an ink cartridge liquid level sensor. One end of the ink cartridge liquid level sensor is arranged in the secondary ink cartridge and connected to the secondary ink cartridge for detecting the liquid level status in the secondary ink cartridge and transmitting the signal to the integrated control board for controlling the operation of the ink supply pump. The other end of the ink cartridge liquid level sensor is connected to the integrated control board.

[0008] Preferably, the secondary ink cartridge is connected and installed with a nozzle and an ink barrel, the nozzle is installed at the ink outlet at the lowermost end of the secondary ink cartridge through an ink filling tube, the ink barrel is connected to the ink inlet port of the secondary ink cartridge through the ink filling tube, the number of ink barrels, ink cartridges and nozzles is the same, and the ink supply pump is installed on the ink filling tube to draw the ink in the ink barrel into the secondary ink cartridge.

[0009] Preferably, the negative pressure control module includes a negative pressure pump, a high-speed pressure relief valve and an air buffer tank, each air buffer tank is equipped with a negative pressure pump and a high-speed pressure relief valve, and the negative pressure pump and the high-speed pressure relief valve are connected to the integrated control board.

[0010] Preferably, the negative pressure control module also includes a negative pressure sensor, one end of which is connected to the integrated control board, and the other end of the negative pressure sensor is installed in the air buffer tank and connected to the air buffer tank for detecting whether the negative pressure preset value is reached in the air buffer tank and sending a signal to the integrated control board.

[0011] Preferably, the ink pressure control module includes an ink pressure button terminal, a positive pressure pump and a negative pressure tank, the positive pressure pump is installed on the negative pressure tank, the negative pressure tank is connected to the integrated control board, the negative pressure tank is connected to the air port at the top end of the secondary ink cartridge, the ink pressure button terminal is installed on the integrated control board, and the ink pressure button terminal is connected to the ink cartridge liquid level sensor.

[0012] Preferably, the ink pressure control module also includes a positive and negative pressure switching valve and a positive pressure sensor. The positive and negative pressure switching valve is respectively connected to the air buffer tank, the negative pressure tank and the secondary ink cartridge. The positive and negative pressure switching valve is connected to a separate air buffer tank and a secondary ink cartridge. The positive pressure sensor is installed on the positive and negative pressure switching valve and the positive pressure pump to detect whether the positive pressure preset value is reached in the negative pressure tank and send a signal to the integrated control board.

[0013] Preferably, the heating control module includes a temperature sensor, a heating plate output terminal and a heating plate, the heating plate output terminal is installed on the integrated control board, the heating plate is connected to the heating plate output terminal, the heating plate is installed in a secondary ink cartridge, one end of the temperature sensor is installed in the secondary ink cartridge, and the other end of the temperature sensor is connected to the integrated control board.

[0014] Preferably, the ink overflow detection module includes an ink overflow protection bottle, an ink overflow alarm interface and an alarm device. The ink overflow alarm interface is installed on the integrated control board, the alarm device is connected to the ink overflow alarm interface, the ink overflow protection bottle is installed on the upper part of the secondary ink cartridge, and the ink overflow alarm interface is connected to the ink overflow protection bottle. When ink overflow occurs in the ink overflow protection bottle, the alarm device will be controlled through the ink overflow alarm interface to issue an alarm reminder.

[0015] A control method for driving a control board of an ink supply system of an inkjet printer, characterized in that it specifically comprises the following steps:

[0016] Step 1: Turn on the power, start the integrated control board, and the ink supply control module, negative pressure control module, ink pressure control module, heating control module, and ink overflow detection module enter the initialization state; detect the liquid level state of the secondary ink cartridge through the ink cartridge liquid level sensor to confirm whether the ink is sufficient, detect the temperature of the secondary ink cartridge through the temperature sensor to confirm whether heating is required, and check the initial state of the negative pressure sensor and the positive pressure sensor;

[0017] Step 2: According to the detection result of the ink cartridge liquid level sensor, when insufficient ink is detected, the integrated control board controls the ink supply pump to start, draws ink from the ink barrel to the secondary ink cartridge, and continues to pump ink until the ink shortage limit of the liquid level sensor of the secondary ink cartridge disappears, uses a few milliliters of sensing liquid level to drop, and the ink supply pump works again;

[0018] Step 3: The negative pressure pump starts working, extracting air from the air buffer tank to generate negative pressure. The negative pressure sensor detects the negative pressure value in the air buffer tank. When the preset value is reached, the integrated control board controls the negative pressure pump to stop working. If the negative pressure is too large, the high-speed pressure relief valve automatically opens to release part of the air and reduce the negative pressure value. The suction speed of the negative pressure pump is adjusted according to different work requirements.

[0019] Step 4: The positive pressure pump works and the positive and negative pressure switching valve works to change the negative pressure in the secondary ink cartridge into positive pressure. At the same time, the positive pressure pump pumps air into the secondary ink cartridge. The pipeline is connected to the positive pressure sensor. When the preset value is reached, the positive pressure pump stops working and the positive and negative pressure switching valve is started to switch the negative pressure to positive pressure to achieve ink pressing. After the ink pressing is completed, the positive and negative pressure switching valve works and switches back to the negative pressure state.

[0020] Step 5: The temperature sensor detects the temperature in the secondary ink cartridge in real time. When the temperature is lower than the preset value, the integrated control board controls the heater to work and heat the ink cartridge. When the temperature reaches the preset value, the heater stops working.

[0021] Step 6: The ink overflow protection bottle is installed between the negative pressure air pipe and the positive and negative pressure switching valve on the upper part of the secondary ink cartridge to monitor whether there is ink overflow in real time. Once ink overflow is detected, the ink overflow alarm interface immediately triggers the alarm device to alarm. During the coding process, monitor the coding quality to ensure that the printed text, graphics and other information are clear and accurate. If the coding quality is found to be reduced, adjust the printer parameters or perform maintenance in time.

[0022] The present invention has the following beneficial effects:

[0023] 1. By accurately controlling the ink supply and jet speed, the printer can maintain stable printing quality at high speed, thereby improving the overall efficiency of the production line;

[0024] 2. Reduce unnecessary waste and pollution of ink, directly reduce the company's consumables costs, optimize the design and control strategy of the ink supply system, achieve accurate supply and injection of ink, reduce unnecessary waste and pollution, and reduce overall energy consumption, in line with the environmental protection concept of energy conservation and emission reduction;

[0025] 3. Simplify the structural design of the ink supply system drive control board, improve the versatility and maintainability of parts, reduce maintenance difficulty and cost, and ensure the long-term stable operation of the equipment;

[0026] 4. Design programmable control parameter settings and adjustment functions to enable the inkjet printer to flexibly adapt to production lines of different sizes, materials and speeds, achieve diversity and flexibility in the production process, and meet the printing needs of different industries and products. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the connection structure of the present invention.

[0028] Figure 2 It is a schematic diagram of various terminals for comprehensive control of card processing of the present invention;

[0029] Figure 3 It is a work flow chart of the present invention.

[0030] In the figure: 1. integrated control board, 2. ink supply control module, 21. ink supply pump, 22. ink cartridge detection device, 221. secondary ink cartridge, 222. ink cartridge liquid level sensor, 223. nozzle, 224. ink barrel, 225. ink adding tube, 3. negative pressure control module, 31. negative pressure pump, 32. high-speed pressure relief valve, 33. air buffer tank, 34. negative pressure sensor, 4. ink pressure control module, 41. ink pressure button terminal, 42. positive pressure pump, 43. negative pressure tank, 44. positive and negative pressure switching valve, 45. positive pressure sensor, 5. heating control module, 51. temperature sensor, 52. heating plate output terminal, 53. heating plate, 6. ink overflow detection module, 61. ink overflow protection bottle, 62. ink overflow alarm interface, 63. alarm device. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0032] like Figure 1-3 As shown, the present invention is an ink supply system drive control board applied to an inkjet printer, comprising an integrated control board 1, an ink supply control module 2, a negative pressure control module 3, an ink pressure control module 4, a heating control module 5 and an ink overflow detection module 6. The ink supply control module 2, the negative pressure control module 3, the ink pressure control module 4, the heating control module 5 and the ink overflow detection module 6 are all installed and connected on the integrated control board 1, the ink supply control module 2 comprises an ink supply pump 21 and an ink cartridge detection device 22, the integrated control board 1 is connected to control the ink supply pump 21, and the ink cartridge detection device 22 is connected to the integrated control board 1.

[0033] By adopting the above technical solution, the integrated control board 1 serves as the core control unit of the entire ink supply system. The integrated control board 1 is responsible for receiving external instructions, processing data, and sending control signals to each control module. It integrates a high-performance processor, memory, and input and output interface to ensure efficient and stable operation of the system; the ink supply pump 21 accurately controls the ink extraction speed to ensure that the ink is stably and continuously delivered from the ink barrel to the secondary ink cartridge to avoid ink interruption or overflow; the ink cartridge detection device 22 includes a liquid level sensor, a temperature sensor, etc., which monitors the ink level and temperature in the secondary ink cartridge in real time, and feeds back the information to the integrated control board 1 so as to adjust the ink supply speed or trigger heating control in time; the negative pressure control module 3 maintains a stable negative pressure environment in the secondary ink cartridge through the synergistic effect of the negative pressure pump 31 and the high-speed pressure relief valve 32 to prevent the ink from being sprayed due to bubbles or impurities. The quality affects the printing quality. At the same time, the negative pressure sensor 34 monitors the negative pressure value in real time to ensure that it is within a safe and effective range; when the ink pressure control module 4 needs to clean the nozzle or adjust the ink state, the ink pressure control module 4 injects positive pressure air into the secondary ink cartridge through the positive pressure pump 42 and the positive and negative pressure switching valve 44 to promote the flow of ink, thereby cleaning the nozzle and unblocking the ink path; the heating plate 53 of the heating control module 5 automatically starts and stops under the control of the integrated control board 1 according to the ink temperature detected by the temperature sensor 51, keeps the ink within the optimal printing temperature range, and ensures the stability and consistency of the printing effect; the ink overflow detection module 6 ink overflow protection bottle 61 collects ink overflowed due to various reasons, and transmits the signal to the integrated control board 1 through the ink overflow alarm interface 62, triggering the alarm device 63 to sound an alarm, reminding the operator to deal with it in time to avoid ink waste and machine damage.

[0034] Through the precise coordination of the ink supply pump, negative pressure control and heating control, the ink supply is stable and the jetting is accurate, which significantly improves the clarity and consistency of the printing. The close collaboration and real-time monitoring between the modules effectively prevents printing failures caused by problems such as insufficient ink, bubble mixing, and abnormal temperature, and improves the overall stability of the system. The automated monitoring and alarm mechanism enables operators to detect and deal with potential problems in a timely manner, reducing production losses and maintenance costs caused by downtime due to failures.

[0035] The ink cartridge detection device 22 includes a secondary ink cartridge 221 and an ink cartridge liquid level sensor 222. One end of the ink cartridge liquid level sensor 222 is arranged in the secondary ink cartridge 221 and connected to the secondary ink cartridge 221 for detecting the liquid level status in the secondary ink cartridge 221 and transmitting the signal to the integrated control board 1 for controlling the operation of the ink supply pump 21. The other end of the ink cartridge liquid level sensor 222 is connected to the integrated control board 1.

[0036] By adopting the above-mentioned technical scheme, the ink cartridge liquid level sensor 222 adopts non-contact or contact measurement principles, including float type, capacitance type, and ultrasonic type, to adapt to the characteristics and environmental requirements of different inks. By real-time monitoring of the liquid level status in the secondary ink cartridge 221, the working status of the ink supply pump 21 is intelligently adjusted to ensure the timeliness and accuracy of ink supply, improve the ink supply efficiency, and avoid ink waste and overflow problems caused by excessive ink supply by precisely controlling the ink supply amount, thereby reducing production costs.

[0037] The secondary ink cartridge 221 is connected to and installed with a nozzle 223 and an ink barrel 224. The nozzle 223 is installed at the ink outlet at the lower end of the secondary ink cartridge 221 through an ink filling tube 225. The ink barrel 224 is connected to the ink inlet port of the secondary ink cartridge 221 through the ink filling tube 225. The number of ink barrels 224, ink cartridges 221 and nozzles 223 is the same. The ink supply pump 21 is installed on the ink filling tube 225 to pump the ink in the ink barrel 224 into the secondary ink cartridge 221.

[0038] By adopting the above technical solution, each nozzle 223 is separately installed on the secondary ink cartridge 221, which is convenient for independent control and maintenance according to printing requirements, and also supports multiple nozzles working at the same time to improve printing efficiency. The connection between the ink barrel 224 and the secondary ink cartridge 221 adopts a sealed joint to ensure that the connection is firm and leak-free. At the same time, a filter or filter screen is also provided on the ink filling tube 225 to remove impurities and particles in the ink and protect the nozzle 223 from damage. The ink supply pump 21 is installed on the ink filling tube 225, and the ink in the ink barrel 224 is pumped into the secondary ink cartridge 221 by generating negative pressure or positive pressure. The working speed and flow rate can be adjusted according to the printing requirements and the liquid level state of the secondary ink cartridge 221.

[0039] The simultaneous operation of multiple nozzles 223 and the efficient ink supply mechanism of the ink supply pump 21 enable the inkjet printer to complete a large number of printing tasks in a shorter time and improve production efficiency. Each nozzle 223 is individually installed on the secondary ink cartridge 221, which can achieve more precise control and adjustment and reduce printing quality problems caused by differences between nozzles. The precise ink supply and uniformity of the ink supply pump 21 also further ensure the printing quality.

[0040] The negative pressure control module 3 includes a negative pressure pump 31 , a high-speed pressure relief valve 32 and an air buffer tank 33 . Each air buffer tank 33 is equipped with a negative pressure pump 31 and a high-speed pressure relief valve 32 . The negative pressure pump 31 and the high-speed pressure relief valve 32 are connected to the integrated control board 1 .

[0041] By adopting the above technical solution, the negative pressure pump 31 generates negative pressure by mechanical or electrical means to extract air from the system, thereby forming a vacuum state in the secondary ink cartridge or other components that need to maintain negative pressure. The negative pressure helps to prevent the generation of bubbles in the ink and ensure the quality of printing. The working speed of the negative pressure pump 31 and the negative pressure value generated can be accurately adjusted according to the instructions of the integrated control board 1 to meet different printing requirements. The air buffer tank 33 serves as a buffer area between the negative pressure system and the external air, which helps to stabilize the negative pressure value and reduce fluctuations. It can store a certain amount of air when the negative pressure pump 31 is working, and release it when needed to adjust the negative pressure in the system; the negative pressure pump 31 is mainly responsible for collecting negative pressure from the air buffer tank Air is sucked out from the air buffer tank 33 to generate negative pressure. There is a separate air pipe in the air buffer tank 33 that leads to the negative pressure sensor 34. When the negative pressure sensor 34 detects that the negative pressure has reached the preset value, the negative pressure pump 31 stops working. If the negative pressure is too large, the pressure relief valve 32 is opened to introduce a part of the air into the negative air buffer tank 33, thereby reducing the negative pressure and realizing two-way regulation of the pressure, so that the negative pressure is stabilized within a set value. Among them, the suction speed of the negative pressure pump 31 is divided into 3 levels. When the negative pressure is a positive number or 0, the negative pressure pump 31 pumps air at full speed. When the negative pressure is a negative value, the negative pressure pump 31 pumps air at a faster speed. When the negative pressure is close to the set value, it pumps air at a low speed set by the system so that the negative pressure is more stable.

[0042] A stable negative pressure environment helps to reduce bubbles and impurities in the ink, improve the clarity and consistency of printing, and through precise adjustment of the negative pressure control module 3, ensure that the nozzle and ink system always maintain the best working condition. Excessive negative pressure or excessive fluctuations will cause damage to the nozzle and ink system and shorten the life of the equipment. The negative pressure control module 3 can effectively protect the equipment from damage and extend its service life by stabilizing the negative pressure value and reducing fluctuations.

[0043] The negative pressure control module 3 also includes a negative pressure sensor 34, one end of the negative pressure sensor 34 is connected to the integrated control board 1, and the other end of the negative pressure sensor 34 is installed in the air buffer tank 33 and connected to the air buffer tank 33 for detecting whether the negative pressure in the air buffer tank 33 reaches a preset value and sending a signal to the integrated control board 1.

[0044] By adopting the above technical solution, the high-speed pressure relief valve 32 plays a role when the negative pressure in the system needs to be quickly released. When the system needs to adjust the negative pressure value or perform operations such as cleaning and maintenance, the high-speed pressure relief valve 32 can be opened quickly to introduce air into the system, so that the negative pressure is quickly reduced to a safe range.

[0045] A stable negative pressure environment helps to reduce bubbles and impurities in the ink and improve the clarity and consistency of printing. Through precise adjustment of the negative pressure control module 3, it can ensure that the nozzle and ink system always remain in the best working condition. Excessive negative pressure or excessive fluctuations will damage the nozzle and ink system and shorten the life of the equipment. The negative pressure control module 3 effectively protects the equipment from damage and extends its service life by stabilizing the negative pressure value and reducing fluctuations.

[0046] The ink pressure control module 4 includes an ink pressure button terminal 41, a positive pressure pump 42 and a negative pressure tank 43. The positive pressure pump 42 is installed on the negative pressure tank 43, the negative pressure tank 43 is connected to the integrated control board 1, the negative pressure tank 43 is connected to the air port at the top end of the secondary ink cartridge 221, the ink pressure button terminal 41 is installed on the integrated control board 1, and the ink pressure button terminal 41 is connected to the ink cartridge liquid level sensor 222.

[0047] By adopting the above technical solution, the connection between the ink pressing button terminal 41 and the ink cartridge liquid level sensor 222 makes the ink pressing operation more intelligent. Before pressing ink, the integrated control board 1 will first check the liquid level status of the secondary ink cartridge 221. If the liquid level is too high, the integrated control board 1 will prohibit the ink pressing operation or issue a warning to prevent ink overflow. If the liquid level is too low, it will automatically check and remind the operator whether it is necessary to continue adding ink after the ink pressing operation is completed.

[0048] By precisely controlling the rotation speed and flow rate of the positive pressure pump 42 and utilizing the stabilizing effect of the negative pressure tank 43, it is possible to ensure that the ink flows smoothly and continuously into the secondary ink cartridge 221 during the ink pressing process, thereby improving the ink pressing efficiency. The linkage with the ink cartridge liquid level sensor 222 makes the ink pressing operation more intelligent, and precise control is performed according to the actual liquid level status of the secondary ink cartridge 221 to avoid ink waste due to excessive ink pressing.

[0049] The positive pressure pump 42 pumps air into the small negative pressure tank 43 to generate the pressure required for ink pressing. This pressure will be connected to the positive pressure sensor 45 of the system board through a separate air pipe. When the pressure exceeds the set value, the positive pressure pump 42 stops working, and then starts the corresponding two-position three-way solenoid valve according to the selection of the trigger switch to switch the negative pressure to positive pressure for ink pressing. After the ink pressing is completed, the system will automatically adjust the pressure in the negative pressure tank 43 to 0, and then switch to negative pressure. The pressure and time of ink pressing are set by the host computer.

[0050] The ink pressure control module 4 also includes a positive and negative pressure switching valve 44 and a positive pressure sensor 45. The positive and negative pressure switching valve 44 is respectively connected to the air buffer tank 33, the negative pressure tank 43 and the secondary ink cartridge 221. The positive and negative pressure switching valve 44 connects a separate air buffer tank 33 and a secondary ink cartridge 221. One end of the positive pressure sensor 45 is installed on the negative pressure tank 43. The positive pressure sensor 45 is installed on the positive and negative pressure switching valve 44 and the positive pressure pump 42 to detect whether the positive pressure preset value is reached in the negative pressure tank 43 and send a signal to the integrated control board 1.

[0051] By adopting the above technical solution, the positive and negative pressure switching valve 44 can switch between negative pressure and positive pressure to meet different printing requirements. The positive pressure sensor 45 is installed on the negative pressure tank 43 to monitor the positive pressure value in the tank in real time. When the ink pressing operation reaches a certain extent and the positive pressure in the negative pressure tank 43 reaches a preset value, the positive pressure sensor 45 will send a signal to the integrated control board 1. After receiving the signal, the integrated control board 1 will determine whether it is necessary to stop the ink pressing operation or perform other related operations according to the preset algorithm and logic to ensure the stability of the system and the printing quality.

[0052] Through the precise switching of the positive and negative pressure switching valve 44 and the real-time monitoring of the positive pressure sensor 45, the ink in the secondary ink cartridge 221 can be ensured to maintain a stable positive pressure state during the ink pressing process, which helps to reduce bubbles and impurities in the ink and improve the clarity and consistency of printing. The introduction of the positive and negative pressure switching valve 44 enables the system to switch freely between negative pressure and positive pressure to meet different printing requirements, which helps to improve the adaptability and application range of the system.

[0053] The heating control module 5 includes a temperature sensor 51, a heating plate output terminal 52 and a heating plate 53. The heating plate output terminal 52 is installed on the integrated control board 1. The heating plate 53 is connected to the heating plate output terminal 52. The heating plate 53 is installed in the secondary ink cartridge 221. One end of the temperature sensor 51 is installed in the secondary ink cartridge 221, and the other end of the temperature sensor 51 is connected to the integrated control board 1.

[0054] By adopting the above technical solution, the heating sheet 53 usually adopts the principle of resistance heating, and heats the ink in the secondary ink cartridge 221 by the heat generated when the current passes through the resistor. The heating sheet 53 is used with the temperature sensor to have an automatic temperature adjustment function, that is, when the ink temperature reaches a preset value, the heating sheet will automatically reduce the power or stop heating to prevent the ink from overheating. The temperature sensor 51 is responsible for real-time monitoring of the ink temperature in the secondary ink cartridge 221, and converting it into an electrical signal to send to the integrated control board 1;

[0055] The heating control is composed of a temperature sensor 51 and a heating plate 53, wherein the temperature sensor 51 has 4 channels, the sensor model is NTC100 thermocouple, the heating plate 53 control is also 4 channels, the model of the heating plate 53 is not limited, and the customer can choose it, but the power of each channel needs to be controlled within 30 watts, and the total power of the 4 channels is set to 120 watts.

[0056] After the integrated control board 1 receives the temperature signal sent by the temperature sensor 51, it will process it according to the preset heating control algorithm, including temperature threshold judgment, heating power adjustment, heating time control and other aspects. In order to improve the efficiency and accuracy of heating control, the heating control algorithm can be optimized, and the ink in the secondary ink cartridge 221 can be accurately heated through the heating control module 5 to ensure that the ink maintains a stable temperature and viscosity during the printing process, thereby improving the clarity and consistency of the printing.

[0057] The ink overflow detection module 6 includes an ink overflow protection bottle 61, an ink overflow alarm interface 62 and an alarm device 63. The ink overflow alarm interface 62 is installed on the integrated control board 1, and the alarm device 63 is connected to the ink overflow alarm interface 62. The ink overflow protection bottle 61 is installed on the upper part of the secondary ink cartridge 221. The ink overflow alarm interface 62 is connected to the ink overflow protection bottle 61. When ink overflow occurs in the ink overflow protection bottle 61, the alarm device 63 will be controlled through the ink overflow alarm interface 62 to give an alarm reminder.

[0058] By adopting the above technical solution, the ink overflow protection bottle 61 has good sealing and corrosion resistance to ensure that it will not fail due to ink penetration or corrosion during long-term use. The ink overflow alarm interface 62 is responsible for transmitting the detection signal in the ink overflow protection bottle 61 to the integrated control board 1, thereby triggering the alarm device 63. The alarm device 63 includes a sound alarm, a light alarm or a combination of the two. The sound alarm can emit a high-decibel alarm to attract the attention of the operator; the light alarm can remind the operator to pay attention by flashing lights.

[0059] The introduction of the ink overflow detection module 6 can timely detect and deal with ink overflow, avoid damage to equipment and the environment caused by ink leakage, and thus improve production safety. By timely detecting and dealing with ink overflow, equipment damage and downtime caused by ink leakage can be reduced, thereby reducing maintenance costs and improving production efficiency, and preventing ink waste; this system has 4 negative pressure channels, and therefore also has 4 corresponding ink overflow alarm interfaces 62, which can be externally connected to 4 ink overflow protection bottles 61. When the system detects ink overflow in any channel, an alarm will sound, and operations such as negative pressure and ink supply will be stopped until manual intervention is performed to release the ink overflow state.

[0060] A control method for driving a control board of an ink supply system of an inkjet printer, characterized in that it specifically comprises the following steps:

[0061] Step 1: Turn on the power supply, start the integrated control board 1, and the ink supply control module 2, the negative pressure control module 3, the ink pressure control module 4, the heating control module 5, and the ink overflow detection module 6 enter the initialization state; detect the liquid level state of the secondary ink cartridge 221 through the ink cartridge liquid level sensor 222 to confirm whether the ink is sufficient, detect the temperature of the secondary ink cartridge 221 through the temperature sensor 51 to confirm whether heating is required, and check the initial states of the negative pressure sensor 34 and the positive pressure sensor 45;

[0062] Step 2: According to the detection result of the ink cartridge liquid level sensor 222, when insufficient ink is detected, the integrated control board 1 controls the ink supply pump 21 to start, and draws ink from the ink barrel 224 to the secondary ink cartridge 221, and continues to pump ink until the ink shortage limit of the liquid level sensor 222 of the secondary ink cartridge 221 disappears, and the liquid level is sensed to drop by several milliliters, and the ink supply pump 21 works again;

[0063] Step three: the negative pressure pump 31 starts working, extracts air from the air buffer tank 33 to generate negative pressure, and the negative pressure sensor 34 detects the negative pressure value in the air buffer tank 33. When the preset value is reached, the integrated control board 1 controls the negative pressure pump 31 to stop working; if the negative pressure is too large, the high-speed pressure relief valve 32 automatically opens to release part of the air and reduce the negative pressure value. According to different working requirements, the air extraction speed of the negative pressure pump 31 is adjusted;

[0064] Step 4: The positive pressure pump 42 works, and the positive and negative pressure switching valve 44 works to change the negative pressure in the secondary ink cartridge 221 into positive pressure. At the same time, the positive pressure pump 42 pumps air into the secondary ink cartridge 221. The pipeline is connected to the positive pressure sensor 45. When the preset value is reached, the positive pressure pump 42 stops working, and the positive and negative pressure switching valve 44 is started to switch the negative pressure to positive pressure to achieve ink pressing. After the ink pressing is completed, the positive and negative pressure switching valve 44 works and switches back to the negative pressure state.

[0065] Step 5: The temperature sensor 51 detects the temperature in the secondary ink cartridge 221 in real time. When the temperature is lower than a preset value, the integrated control board 1 controls the heating plate 53 to work and heat the ink cartridge. When the temperature reaches the preset value, the heating plate 53 stops working.

[0066] Step six: The ink overflow protection bottle 61 is installed between the negative pressure air pipe on the upper part of the secondary ink cartridge 221 and the positive and negative pressure switching valve 44 to monitor in real time whether there is ink overflow. Once ink overflow is detected, the ink overflow alarm interface 62 immediately triggers the alarm device 63 to alarm. During the coding process, the coding quality is monitored to ensure that the printed text, graphics and other information are clear and accurate. If the coding quality is found to be reduced, the printer parameters are adjusted in time or maintenance is performed.

[0067] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0068] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An ink supply system drive control board for an inkjet printer, characterized in that: The invention comprises an integrated control board (1), an ink supply control module (2), a negative pressure control module (3), an ink pressure control module (4), a heating control module (5) and an ink overflow detection module (6); the ink supply control module (2), the negative pressure control module (3), the ink pressure control module (4), the heating control module (5) and the ink overflow detection module (6) are all installed and connected to the integrated control board (1); the ink supply control module (2) comprises an ink supply pump (21) and an ink cartridge detection device (22); the integrated control board (1) is connected to control the ink supply pump (21), and the ink cartridge detection device (22) is connected to the integrated control board (1).

2. The ink supply system drive control board for inkjet printer according to claim 1, characterized in that: The ink cartridge detection device (22) comprises a secondary ink cartridge (221) and an ink cartridge liquid level sensor (222); one end of the ink cartridge liquid level sensor (222) is arranged in the secondary ink cartridge (221) and connected to the secondary ink cartridge (221) for detecting the liquid level state in the secondary ink cartridge (221) and transmitting a signal to the integrated control board (1) for controlling the operation of the ink supply pump (21); the other end of the ink cartridge liquid level sensor (222) is connected to the integrated control board (1).

3. The ink supply system drive control board for inkjet printer according to claim 2, characterized in that: The secondary ink cartridge (221) is connected to and installed with a nozzle (223) and an ink barrel (224); the nozzle (223) is installed at the ink outlet at the bottom of the secondary ink cartridge (221) via an ink filling tube (225); the ink barrel (224) is connected to the ink inlet port of the secondary ink cartridge (221) via the ink filling tube (225); the number of ink barrels (224), ink cartridges (221) and nozzles (223) is the same; and an ink supply pump (21) is installed on the ink filling tube (225) to pump ink in the ink barrel (224) into the secondary ink cartridge (221).

4. The ink supply system drive control board for inkjet printer according to claim 1, characterized in that: The negative pressure control module (3) comprises a negative pressure pump (31), a high-speed pressure relief valve (32) and an air buffer tank (33), each air buffer tank (33) is equipped with a negative pressure pump (31) and a high-speed pressure relief valve (32), and the negative pressure pump (31) and the high-speed pressure relief valve (32) are connected to the integrated control board (1).

5. The ink supply system drive control board for inkjet printer according to claim 4, characterized in that: The negative pressure control module (3) further comprises a negative pressure sensor (34), one end of the negative pressure sensor (34) being connected to the integrated control board (1), and the other end of the negative pressure sensor (34) being installed in the air buffer tank (33) and connected to the air buffer tank (33) for detecting whether the negative pressure in the air buffer tank (33) reaches a preset value and sending a signal to the integrated control board (1).

6. The ink supply system drive control board for inkjet printer according to claim 2, characterized in that: The ink pressing control module (4) comprises an ink pressing button terminal (41), a positive pressure pump (42) and a negative pressure tank (43); the positive pressure pump (42) is mounted on the negative pressure tank (43); the negative pressure tank (43) is connected to the integrated control board (1); the negative pressure tank (43) is connected to the air port at the top end of the secondary ink cartridge (221); the ink pressing button terminal (41) is mounted on the integrated control board (1); and the ink pressing button terminal (41) is connected to the ink cartridge liquid level sensor (222).

7. The ink supply system drive control board for inkjet printer according to claim 4 or 6, characterized in that: The ink pressure control module (4) further comprises a positive and negative pressure switching valve (44) and a positive pressure sensor (45); the positive and negative pressure switching valve (44) is respectively connected to the air buffer tank (33), the negative pressure tank (43) and the secondary ink cartridge (221); the positive and negative pressure switching valve (44) is connected to a separate air buffer tank (33) and a secondary ink cartridge (221); the positive pressure sensor (45) is installed between the positive and negative pressure switching valve (44) and the positive pressure pump (42) to detect whether the positive pressure in the negative pressure tank (43) reaches a preset value and sends a signal to the integrated control board (1).

8. The ink supply system drive control board for inkjet printer according to claim 2, characterized in that: The heating control module (5) comprises a temperature sensor (51), a heating plate output terminal (52) and a heating plate (53); the heating plate output terminal (52) is mounted on the integrated control board (1); the heating plate (53) is connected to the heating plate output terminal (52); the heating plate (53) is mounted in a secondary ink cartridge (221); one end of the temperature sensor (51) is mounted in the secondary ink cartridge (221); and the other end of the temperature sensor (51) is connected to the integrated control board (1).

9. The ink supply system drive control board for inkjet printer according to claim 2, characterized in that: The ink overflow detection module (6) comprises an ink overflow protection bottle (61), an ink overflow alarm interface (62) and an alarm device (63); the ink overflow alarm interface (62) is mounted on the integrated control board (1); the alarm device (63) is connected to the ink overflow alarm interface (62); the ink overflow protection bottle (61) is mounted on the upper part of the secondary ink cartridge (221); the ink overflow alarm interface (62) is connected to the ink overflow protection bottle (61); when ink overflow occurs in the ink overflow protection bottle (61), the alarm device (63) is controlled via the ink overflow alarm interface (62) to give an alarm reminder.

10. A control method for driving a control board of an ink supply system of an inkjet printer, characterized in that: The specific steps include: Step 1: Turn on the power supply, start the integrated control board (1), and the ink supply control module (2), the negative pressure control module (3), the ink pressure control module (4), the heating control module (5), and the ink overflow detection module (6) enter the initialization state; detect the liquid level state of the secondary ink cartridge (221) through the ink cartridge liquid level sensor (222) to confirm whether the ink is sufficient; detect the temperature of the secondary ink cartridge (221) through the temperature sensor (51) to confirm whether heating is required; and check the initial states of the negative pressure sensor (34) and the positive pressure sensor (45); Step 2: According to the detection result of the ink cartridge liquid level sensor (222), when insufficient ink is detected, the integrated control board (1) controls the ink supply pump (21) to start, draws ink from the ink barrel (224) to the secondary ink cartridge (221), and continues to pump ink until the ink shortage limit of the liquid level sensor (222) of the secondary ink cartridge (221) disappears, and the ink supply pump (21) works again when the liquid level is sensed to drop by several milliliters; Step three: the negative pressure pump (31) starts to work, and draws air from the air buffer tank (33) to generate negative pressure. The negative pressure sensor (34) detects the negative pressure value in the air buffer tank (33). When the negative pressure reaches a preset value, the integrated control board (1) controls the negative pressure pump (31) to stop working. If the negative pressure is too large, the high-speed pressure relief valve (32) automatically opens to release part of the air and reduce the negative pressure value. The air extraction speed of the negative pressure pump (31) is adjusted according to different work requirements. Step 4: The positive pressure pump (42) works and the positive and negative pressure switching valve (44) works to change the negative pressure in the secondary ink cartridge (221) into positive pressure. At the same time, the positive pressure pump (42) pumps air into the secondary ink cartridge (221). The pipeline is connected to the positive pressure sensor (45). When the preset value is reached, the positive pressure pump (42) stops working and the positive and negative pressure switching valve (44) is started to switch the negative pressure into positive pressure to achieve ink pressing. After the ink pressing is completed, the positive and negative pressure switching valve (44) works and switches back to the negative pressure state. Step 5: The temperature sensor (51) detects the temperature in the secondary ink cartridge (221) in real time. When the temperature is lower than a preset value, the integrated control board (1) controls the heating plate (53) to work and heat the ink cartridge. When the temperature reaches the preset value, the heating plate (53) stops working. Step 6: The ink overflow protection bottle (61) is installed between the negative pressure air pipe and the positive and negative pressure switching valve (44) on the upper part of the secondary ink cartridge (221) to monitor in real time whether there is ink overflow. Once ink overflow is detected, the ink overflow alarm interface (62) immediately triggers the alarm device (63) to alarm. During the coding process, the coding quality is monitored to ensure that the printed text, graphics and other information are clear and accurate. If the coding quality is found to be reduced, the printer parameters are adjusted in time or maintenance is performed.

Images