Inkjet device

Abstract

This application relates to a coding device. The coding device includes a coding machine body, a cleaning mechanism, and a distance adjustment mechanism. The coding machine body is equipped with a marking nozzle for coding. The cleaning mechanism includes a cleaning nozzle and a cleaning air source. The cleaning nozzle is connected to the coding machine body, and the cleaning air source is connected to the cleaning nozzle for air spraying. The distance adjustment mechanism is located between the cleaning nozzle and the coding machine body, and adjusts the position of the cleaning nozzle on the coding machine body to adjust the distance between the cleaning nozzle and the marking nozzle. The coding device of this application eliminates the need to transfer hoses, reducing maintenance procedures and improving efficiency. The distance adjustment mechanism adapts to complex environments, reducing space requirements. The cleaning mechanism ensures the markings are secure and scratch-resistant, preventing traditional signs from falling off and meeting traceability requirements. It is compatible with different hoses, reducing costs and expanding applicability, and reducing information reading time.

Description

Technical Field

[0001] This application relates to the field of inkjet printing technology, and in particular to inkjet printing devices. Background Technology

[0002] In railway locomotive and rolling stock systems, brake hoses are a key component for ensuring train braking safety, and clear identification and traceability of their maintenance information are one of the core requirements of railway safety management.

[0003] Currently, the industry mainly uses hanging aluminum or paper signs to mark brake hoses after maintenance. While this method can achieve basic information disclosure, it has significant drawbacks in practical applications: First, brake hoses often work in oily and dusty mechanical compartments, and aluminum or paper signs are easily scratched or covered by oil, making the information blurry, or even falling off during pipeline vibration or transportation, directly affecting the effectiveness of the markings; second, maintenance personnel need to manually wipe the signs to read the information, which not only increases the complexity of the maintenance process and reduces management efficiency, but may also lead to traceability management loopholes due to misreading of information. Utility Model Content

[0004] Based on this, a coding device is provided to solve the problem of directly marking information on the brake hose body at the maintenance site.

[0005] Embodiments of this application disclose a coding device, comprising:

[0006] The inkjet printer body is equipped with a marking nozzle, which is used for inkjet printing.

[0007] A cleaning mechanism, comprising a cleaning nozzle and a cleaning air source, wherein the cleaning nozzle is connected to the inkjet printer body, and the cleaning air source is connected to the cleaning nozzle, and the cleaning nozzle is used for spraying air;

[0008] An adjustment mechanism is provided, which is disposed between the cleaning nozzle and the inkjet printer body. The position of the cleaning nozzle on the inkjet printer body is adjusted by the adjustment mechanism to adjust the distance between the cleaning nozzle and the marking nozzle.

[0009] In one embodiment, the cleaning mechanism further includes:

[0010] A connecting pipe connects the cleaning air source and the cleaning nozzle, and is used to deliver high-pressure gas from the cleaning air source to the cleaning nozzle.

[0011] A flow regulating valve is provided on the connecting pipe and is used to regulate the gas flow rate in the connecting pipe.

[0012] In one embodiment, the flow regulating valve is provided with multiple operating conditions, the multiple operating conditions including:

[0013] In the first operating condition, the flow regulating valve controls the gas flow rate in the connecting pipe to a first preset flow rate.

[0014] In the second operating condition, the flow regulating valve controls the gas flow rate in the connecting pipe to a second preset flow rate.

[0015] In the third operating condition, the flow regulating valve controls the gas flow rate in the connecting pipe to a third preset flow rate.

[0016] The first preset flow rate, the second preset flow rate, and the third preset flow rate increase sequentially.

[0017] In one embodiment, the cleaning air source includes:

[0018] A heating mechanism is used to heat the high-pressure gas in the cleaning gas source;

[0019] A refrigeration mechanism is used to cool the high-pressure gas in the cleaning gas source.

[0020] In one embodiment, the coding device further includes:

[0021] An infrared oil stain detection mechanism is installed on the inkjet printer body to detect the reflectivity of the area to be inkjet printed, and to determine the degree of oil staining at the area to be inkjet printed based on the reflectivity.

[0022] In one embodiment, the coding device further includes:

[0023] A flow sensor is disposed inside the connecting pipe for monitoring the gas flow rate inside the connecting pipe;

[0024] A pressure sensor is disposed inside the connecting pipe for monitoring the pressure inside the connecting pipe;

[0025] A pressure valve is disposed inside the connecting pipe and is used to regulate the gas pressure inside the connecting pipe.

[0026] In one embodiment, the adjusting mechanism includes:

[0027] An adjustable distance slide rail is provided on the inkjet printer body, and the end of the adjustable distance slide rail extends toward the marking nozzle.

[0028] An adjustable slider is slidably connected to an adjustable slide rail, and the cleaning nozzle is mounted on the adjustable slider.

[0029] An adjusting bolt is threadedly connected to the adjusting slider, and the end of the adjusting bolt is used to abut and lock onto the adjusting slide rail.

[0030] In one embodiment, the coding device further includes:

[0031] An ultraviolet curing lamp is installed on the body of the inkjet printer and located on one side of the marking nozzle, for curing the inkjet code;

[0032] The inkjet printer body is equipped with ultraviolet photosensitive ink, and the marking printhead prints codes through the ultraviolet photosensitive ink.

[0033] In one embodiment, the coding device further includes:

[0034] A lampshade is mounted on the inkjet printer body and surrounds the ultraviolet curing lamp.

[0035] In one embodiment, the cleaning nozzle is configured as a venturi nozzle. In one embodiment,

[0036] According to the inkjet printing device of this application embodiment, the marking nozzle integrated into the inkjet printer body can directly print information such as maintenance date and number on the surface of the brake hose, replacing traditional external aluminum plates and paper signs. There is no need to transport the hose to a fixed equipment location; it can be operated directly on-site, adapting to working scenarios with confined spaces. The cleaning nozzle of the cleaning mechanism pre-cleans the hose surface of oil, dust, and other impurities by air jetting, solving the problems of blurred markings and poor adhesion caused by on-site hose surface contamination. The cleaning air source provides stable cleaning power, ensuring consistent cleaning results and providing a clean base for subsequent inkjet printing, guaranteeing long-term clear markings. The distance adjustment mechanism can adapt to brake hoses of different diameters by adjusting the distance between the cleaning nozzle and the marking nozzle. For thin-diameter hoses, the distance is shortened to avoid secondary contamination after cleaning; for thick-diameter hoses, the distance is increased to ensure the cleaning range covers the inkjet printing area. Simultaneously, the position can be finely adjusted according to the degree of bending and the angle of placement of the hose on-site, ensuring the optimal distance between the nozzle and the hose surface and improving inkjet printing accuracy. With the above-described configuration, the marking device in this embodiment can complete the marking without transferring the hose, reducing maintenance procedures and improving work efficiency. The flexible adjustment mechanism adapts to complex on-site environments, reducing the requirements for working space. The pre-treatment by the cleaning mechanism ensures that the marking is firmly attached, solving the problem of markings easily falling off or becoming blurred in oily environments. The markings directly printed on the body have stronger resistance to scratches, avoiding the risk of traditional signs being knocked off, and meeting the long-term effectiveness requirements of railway traceability management. Through the adjustable mechanism and modular design, it can be compatible with brake hoses of different materials and specifications, eliminating the need to customize equipment for specific hoses, reducing usage costs, and expanding the applicability of the device. The marking on the body does not require manual wiping and identification, reducing information reading time during maintenance; the marking is permanently bound to the hose, avoiding traceability confusion caused by the separation of the marking from the body, and contributing to the standardized management of the railway system. Attached Figure Description

[0037] Figure 1 This is a front view of a coding device according to an embodiment of this application.

[0038] Figure 2 This is a side view of a coding device according to an embodiment of this application.

[0039] Figure label:

[0040] 100. Inkjet printer body;

[0041] 200. Marking nozzle;

[0042] 300. Clean the spray nozzle;

[0043] 400. Cleaning air source; 410. Heating mechanism; 420. Refrigeration mechanism;

[0044] 500. Adjustment mechanism; 510. Adjustment slide rail; 520. Adjustment slider; 530. Adjustment bolt;

[0045] 600. Connecting pipe; 610. Flow regulating valve; 620. Flow sensor; 630. Pressure sensor; 640. Pressure valve;

[0046] 700. Infrared oil stain detection agency;

[0047] 800. Ultraviolet curing lamp; 810. Lamp cover. Detailed Implementation

[0048] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0049] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0050] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0053] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0054] See Figure 1 and Figure 2 At least one embodiment of this application provides a coding device, which includes a coding machine body 100, a cleaning mechanism, and a distance adjustment mechanism 500. The coding machine body 100 is provided with a marking nozzle 200 for coding. The marking nozzle 200 is used for coding. The cleaning mechanism includes a cleaning nozzle 300 and a cleaning air source 400. The cleaning nozzle 300 is connected to the coding machine body 100, and the cleaning air source 400 is connected to the cleaning nozzle 300 for air spraying. The distance adjustment mechanism 500 is disposed between the cleaning nozzle 300 and the coding machine body 100. The distance adjustment mechanism 500 adjusts the position of the cleaning nozzle 300 on the coding machine body 100 to adjust the distance between the cleaning nozzle 300 and the marking nozzle 200.

[0055] According to the inkjet printing device of this application embodiment, the marking nozzle 200 integrated in the inkjet printer body 100 can directly print information such as maintenance date and number on the surface of the brake hose, replacing traditional external aluminum plates and paper signs. There is no need to transport the hose to a fixed equipment location; it can be operated directly on-site, adapting to working scenarios with confined spaces. The cleaning nozzle 300 of the cleaning mechanism pre-cleans the surface of the hose by spraying air to remove oil, dust, and other impurities, solving the problems of blurred markings and poor adhesion caused by surface contamination of the hose. The cleaning air source 400 provides stable cleaning power, ensuring consistent cleaning results and providing a clean base for subsequent inkjet printing, guaranteeing long-term clear markings. The distance adjustment mechanism 500 adjusts the distance between the cleaning nozzle 300 and the marking nozzle 200 to accommodate brake hoses of different diameters. For thin-diameter hoses, the distance is shortened to avoid secondary contamination after cleaning; for thick-diameter hoses, the distance is increased to ensure the cleaning range covers the inkjet printing area. Simultaneously, the position can be finely adjusted according to the degree of bending and the angle of placement of the hose on-site, ensuring the optimal distance between the nozzle and the hose surface and improving inkjet printing accuracy.

[0056] With the above-described configuration, the marking device in this embodiment can complete the marking without transferring the hose, reducing maintenance procedures and improving work efficiency. The flexible adjustment mechanism 500 adapts to complex on-site environments, reducing the requirements for working space. The pre-treatment by the cleaning mechanism ensures that the marking is firmly attached, solving the problem of markings easily falling off or becoming blurred in oily environments. The markings directly printed on the body have stronger resistance to scratches, avoiding the risk of traditional signs being knocked off, and meeting the long-term effectiveness requirements of railway traceability management. Through the adjustment mechanism 500 and modular design, it can be compatible with brake hoses of different materials and specifications, eliminating the need to customize equipment for specific hoses, reducing usage costs, and expanding the applicability of the device. The marking on the body does not require manual wiping and identification, reducing information reading time during maintenance; the marking is permanently bound to the hose, avoiding traceability confusion caused by the separation of the marking from the body, and contributing to the standardized management of the railway system.

[0057] In some embodiments, the cleaning mechanism further includes a connecting pipe 600 and a flow regulating valve 610. The connecting pipe 600 connects the cleaning air source 400 and the cleaning nozzle 300, and is used to deliver high-pressure gas from the cleaning air source 400 to the cleaning nozzle 300. The flow regulating valve 610 is disposed on the connecting pipe 600 and is used to regulate the gas flow rate within the connecting pipe 600. The connecting pipe 600 stably delivers the high-pressure gas provided by the cleaning air source 400 to the cleaning nozzle 300, providing a material basis for the nozzle to spray air to clean the surface of the brake hose, ensuring that the high-pressure gas can act directionally on the area to be cleaned. The flow regulating valve 610 is installed on the connecting pipe 600 and changes the gas flow cross-sectional area within the connecting pipe 600 by adjusting its own opening, thereby precisely controlling the gas flow rate flowing through the connecting pipe 600 per unit time. This design can flexibly match different gas flow rates according to the degree of oil contamination and material characteristics of the brake hose surface, ensuring sufficient cleaning power to remove oil contamination while avoiding energy waste or damage to the hose surface caused by excessive flow, thus improving the controllability and adaptability of the cleaning process.

[0058] In some embodiments, the flow regulating valve 610 is provided with multiple operating conditions, including a first operating condition, a second operating condition, and a third operating condition. In the first operating condition, the flow regulating valve 610 controls the gas flow rate in the connecting pipe 600 to a first preset flow rate; in the second operating condition, the flow regulating valve 610 controls the gas flow rate in the connecting pipe 600 to a second preset flow rate; and in the third operating condition, the flow regulating valve 610 controls the gas flow rate in the connecting pipe 600 to a third preset flow rate. The first preset flow rate, the second preset flow rate, and the third preset flow rate increase sequentially.

[0059] The multi-stage operating mode of the flow regulating valve 610 refers to dividing the gas flow into three incremental fixed values ​​through a preset program or mechanical gear, so that the cleaning nozzle 300 can accurately output the corresponding intensity of airflow according to different cleaning needs.

[0060] The first operating condition corresponds to the first preset flow rate, which is also the minimum flow rate. This is suitable for brake hoses with only a small amount of dust or light oil on their surface, such as newly repaired hoses or hoses with a dry surface. A gentle airflow is used to sweep the surface, avoiding excessive flow that could cause dust to splash and contaminate the surrounding area or move the hose.

[0061] The second operating condition corresponds to the second preset flow rate, which is a medium flow rate. It is suitable for hoses with moderate oil contamination, such as localized oil stains or semi-dried oil films, requiring a certain amount of impact but not strong cleaning. The airflow can peel off the oil film without damaging the rubber surface, making it suitable for cleaning most hoses during routine maintenance.

[0062] The third operating condition corresponds to the third preset flow rate, which is also the maximum flow rate. It is suitable for applications where the surface of a hose that has not been inspected for a long time is covered with thick oil, sludge, or hardened stains, such as severe contamination caused by a brake system leak. The high-intensity airflow can penetrate thick oil layers, and combined with pressure regulation, it creates a stronger impact force, ensuring that stubborn stains are thoroughly removed, providing a clean base for subsequent coding.

[0063] Through the above settings, a low flow rate is used for light contamination to save energy and protect the hose, while a high flow rate is used for heavy contamination to ensure cleaning effectiveness. This resolves the contradiction of insufficient cleaning or over-cleaning damaging the hose under a single flow rate. Operators do not need to fine-tune the flow rate in real time; they only need to select the corresponding operating condition based on visual assessment of the oil contamination level. This is particularly suitable for the needs of rapid operation at maintenance sites, reducing reliance on operator skill. The low flow rate mode for light contamination reduces compressed air consumption compared to operating at a high flow rate throughout, meeting energy-saving requirements and extending the service life of the cleaning air source 400. The preset flow rate values ​​for different operating conditions have been calibrated to ensure consistent cleaning effects under the same type of contamination scenario, avoiding differences in inkjet printing adhesion caused by unstable manual flow rate adjustments, and improving the reliability of marking quality. In summary, the multi-level operating condition design, by allocating flow rate as needed, balances cleaning effectiveness, ease of operation, and economy, enabling the cleaning mechanism to flexibly cope with complex contamination scenarios of railway brake hoses.

[0064] In some embodiments, the cleaning gas source 400 includes a heating mechanism 410 and a cooling mechanism 420. The heating mechanism 410 is used to heat the high-pressure gas in the cleaning gas source 400; the cooling mechanism 420 is used to cool the high-pressure gas in the cleaning gas source 400. By adjusting the temperature of the high-pressure gas in the cleaning gas source 400, the cleaning effect is optimized to adapt to different working conditions.

[0065] Specifically, the heating mechanism 410 heats the high-pressure gas to a preset temperature through resistance heating, heat exchange, or other methods. The heated gas enhances its ability to dissolve grease and oil stains, making it particularly suitable for removing long-term adhered solidified sludge and viscous oil from brake hoses, thus improving cleaning efficiency. The cooling mechanism 420 cools the high-pressure gas to room temperature or slightly below using semiconductor refrigeration or compression refrigeration. The cooled gas avoids damage to special material hoses caused by high temperatures and is suitable for maintenance work in low-temperature environments, preventing a decrease in gas flowability due to excessively low ambient temperatures.

[0066] Through the above settings, the heating function specifically addresses stubborn oil stains, while the cooling function protects sensitive material hoses, avoiding the problems of difficult oil removal or material damage during cleaning with a single-temperature gas. In high-temperature or low-temperature maintenance environments, temperature regulation maintains stable gas physical properties, preventing condensation at low temperatures from affecting cleaning and ensuring that the cleaning effect is unaffected by the environment. Combined with flow and pressure regulation, a multi-dimensional cleaning parameter combination of temperature, flow, and pressure is formed, further adapting to complex hose contamination scenarios and providing a more reliable surface foundation for subsequent inkjet printing.

[0067] In some embodiments, the coding device further includes an infrared oil stain detection mechanism 700, which is disposed on the coding machine body 100 and is used to detect the reflectivity of the area to be coded and to determine the degree of oil stains at the area to be coded by the reflectivity.

[0068] The 700 infrared oil stain detection system illuminates the area to be marked on the brake hose with infrared light of a specific wavelength, utilizing the difference in infrared reflectivity between oil stains and clean surfaces to achieve detection. When the surface is clean, the infrared reflectivity is high, and the light signal received by the receiver is strong; when there is oil on the surface, the oil absorbs some infrared light, resulting in a decrease in reflectivity and a weaker light signal received by the receiver. The equipment analyzes the reflectivity values ​​and converts them into a quantifiable signal indicating the degree of oil staining.

[0069] With the above settings, operators are no longer required to visually assess the degree of oil contamination, avoiding subjective judgment errors, making it particularly suitable for maintenance sites in dimly lit environments. The detection results can be directly correlated with the multi-level operating conditions and temperature regulation of the flow control valve 610, achieving automated matching between detection and cleaning. If the detected oil contamination level exceeds a threshold, an alarm can be triggered or the coding process can be paused, preventing the marking from peeling off due to direct coding on uncleaned surfaces. This not only improves cleaning efficiency but also provides a reliable pre-construction guarantee for high adhesion of subsequent coding, making it a key element in achieving intelligent and automated operation of the device.

[0070] In some embodiments, the coding device further includes a flow sensor 620, a pressure sensor 630, and a pressure valve 640. The flow sensor 620 is arranged inside the connecting pipe 600 and is used to monitor the gas flow rate inside the connecting pipe 600.

[0071] A pressure sensor 630 is disposed inside the connecting pipe 600 to monitor the pressure inside the connecting pipe 600; a pressure valve 640 is disposed inside the connecting pipe 600 to regulate the gas pressure inside the connecting pipe 600.

[0072] Specifically, the flow sensor 620 is embedded inside the connecting pipe 600 to monitor the instantaneous flow rate of gas flowing through the pipeline in real time, accurately sensing whether the actual flow rate is consistent with the preset operating value of the flow regulating valve 610, providing a measured basis for flow regulation. The pressure sensor 630 is also arranged inside the connecting pipe 600 to continuously monitor the gas pressure in the pipeline and provide feedback on pressure fluctuations. Since gas flow rate is significantly affected by pressure, pressure data can help determine the root cause of flow changes, while ensuring that the gas pressure is within a safe range, avoiding damage to the hose or nozzle due to excessive pressure. The pressure valve 640, as the actuator for pressure regulation, changes the valve opening through mechanical or electronic control to stabilize or adjust the gas pressure within the connecting pipe 600. When the pressure sensor 630 detects that the pressure is below the threshold, the pressure valve 640 automatically opens to increase the pressure; when the pressure is too high, the valve closes to reduce the pressure, ensuring that the pressure is stable within the safe range suitable for the hose material. The flow sensor 620, pressure sensor 630, and pressure valve 640 form a closed-loop control system of detection, feedback, and regulation. The flow sensor 620 and pressure sensor 630 collect pipeline parameters in real time to ensure that the actual flow and pressure are consistent with the preset values. If the flow deviates from the target value due to pressure fluctuations, the control system can adjust the pressure through the pressure valve 640 to indirectly stabilize the flow. If the pressure is abnormal, the pressure valve 640 will directly act to maintain pressure stability and avoid interfering with the flow regulation.

[0073] The above settings solve the problem of deviation between actual and preset values ​​that may occur when relying solely on valve adjustment. Dynamic correction is achieved through sensor feedback, ensuring stable cleaning force.

[0074] The pressure sensor 630 monitors the pressure in real time to prevent overpressure damage to the hose or cleaning nozzle 300; the flow sensor 620 prevents energy waste due to excessive flow or insufficient cleaning due to insufficient flow. Even if the output pressure of the cleaning air source 400 is unstable, the flow and pressure at the end of the pipeline can still be kept stable through the coordination of the pressure valve 640 and the sensor, improving the device's adaptability to on-site air sources.

[0075] In some embodiments, the pitch adjustment mechanism 500 includes a pitch adjustment slide rail 510, a pitch adjustment slider 520, and a pitch adjustment bolt 530. The pitch adjustment slide rail 510 is disposed on the inkjet printer body 100, and the end of the pitch adjustment slide rail 510 extends toward the marking nozzle 200. The pitch adjustment slider 520 is slidably connected to the pitch adjustment slide rail 510, and the cleaning nozzle 300 is mounted on the pitch adjustment slider 520. The pitch adjustment bolt 530 is threadedly connected to the pitch adjustment slider 520, and the end of the pitch adjustment bolt 530 is used to abut and lock onto the pitch adjustment slide rail 510.

[0076] With the above-described configuration, the mechanical sliding structure is easy to operate, requiring no specialized tools for spacing adjustment, making it suitable for rapid on-site operations. The bolt-locking method provides strong vibration resistance, resolving the issue of loosening due to equipment movement or hose collisions after adjustment. The stepless adjustment covers a wide distance range, adapting to most railway brake hose specifications without requiring replacement of specialized parts, thus reducing operating costs. The 500-degree adjustment mechanism enables controllable adjustment of the 300-degree position of the cleaning nozzle, ensuring both adjustment accuracy and ease of on-site operation.

[0077] In some embodiments, the coding device further includes an ultraviolet curing lamp 800, which is mounted on the coding machine body 100 and located on one side of the marking nozzle 200 for curing coding; wherein, the coding machine body 100 is provided with ultraviolet photosensitive ink, and the marking nozzle 200 uses ultraviolet photosensitive ink to print codes.

[0078] The UV-sensitive ink ejected by the marking printhead 200 contains photoinitiators and unsaturated resins. Under UV irradiation at specific wavelengths, such as 200nm-400nm, the photoinitiators rapidly decompose to generate free radicals, triggering a polymerization reaction in the resin molecules. This causes the liquid ink to solidify into a solid film within a short time, adhering tightly to the surface of the tube. After marking, the UV curing lamp 800 immediately irradiates the freshly sprayed ink. By controlling the irradiation intensity (e.g., power 50W-100W) and duration, complete ink curing is ensured. Its positioning design ensures that the ink is irradiated before it dries, preventing marking deformation caused by dripping or smudging.

[0079] With the above settings, the instant irradiation of the UV curing lamp 800 allows the ink to solidify instantly, ensuring that the marking has anti-interference capabilities from the very beginning, ultimately achieving the effect of curing the code immediately and making it durable, thus meeting the railway system's requirements for long-term clear and identifiable traceability management of markings.

[0080] In some embodiments, the coding device further includes a lampshade 810, which is mounted on the coding machine body 100 and surrounds the ultraviolet curing lamp 800. The lampshade 810 is made of an opaque material, such as light-shielding plastic or a metal-plated material, and surrounds the curing lamp to block ultraviolet light from scattering into non-working areas. Since ultraviolet light, especially the UVC band, is irritating to human skin and eyes, the lampshade 810 forms a physical barrier, preventing maintenance personnel from being directly exposed to ultraviolet light during close-range operation, thus meeting industrial safety standards. Simultaneously, the lampshade 810 concentrates ultraviolet light towards the coding area to be cured, reducing light loss in all directions and focusing energy to ensure consistent curing effects across different batches and environments, avoiding differences in coding adhesion caused by light scattering, and ensuring long-term clear markings.

[0081] In some embodiments, the cleaning nozzle 300 is configured as a Venturi nozzle. Based on the Venturi effect, the Venturi nozzle features an internal constriction-expansion flow channel: when high-pressure gas flows through the constriction section, the flow velocity increases sharply, creating a localized low-pressure zone. This negative pressure draws in surrounding air, mixes it with the high-pressure gas, and then ejects it at high speed from the expansion section, forming an air curtain with both impact force and coverage. This design ensures effective cleaning while protecting the hose, making it an ideal choice for railway brake hoses due to their material properties and contamination characteristics.

[0082] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A coding device, characterized in that, include: The inkjet printer body is equipped with a marking nozzle, which is used for inkjet printing. A cleaning mechanism, comprising a cleaning nozzle and a cleaning air source, wherein the cleaning nozzle is connected to the inkjet printer body, and the cleaning air source is connected to the cleaning nozzle, and the cleaning nozzle is used for spraying air; An adjustment mechanism is provided, which is disposed between the cleaning nozzle and the inkjet printer body. The position of the cleaning nozzle on the inkjet printer body is adjusted by the adjustment mechanism to adjust the distance between the cleaning nozzle and the marking nozzle.

2. The inkjet printing device according to claim 1, characterized in that, The cleaning mechanism also includes: A connecting pipe connects the cleaning air source and the cleaning nozzle, and is used to deliver high-pressure gas from the cleaning air source to the cleaning nozzle. A flow regulating valve is provided on the connecting pipe and is used to regulate the gas flow rate in the connecting pipe.

3. The inkjet printing device according to claim 2, characterized in that, The flow regulating valve is equipped with multiple operating conditions, including: In the first operating condition, the flow regulating valve controls the gas flow rate in the connecting pipe to a first preset flow rate. In the second operating condition, the flow regulating valve controls the gas flow rate in the connecting pipe to a second preset flow rate. In the third operating condition, the flow regulating valve controls the gas flow rate in the connecting pipe to a third preset flow rate. The first preset flow rate, the second preset flow rate, and the third preset flow rate increase sequentially.

4. The inkjet printing device according to claim 3, characterized in that, The cleaning air source includes: A heating mechanism is used to heat the high-pressure gas in the cleaning gas source; A refrigeration mechanism is used to cool the high-pressure gas in the cleaning gas source.

5. The inkjet printing device according to claim 4, characterized in that, The inkjet printing device also includes: An infrared oil stain detection mechanism is installed on the inkjet printer body to detect the reflectivity of the area to be inkjet printed, and to determine the degree of oil staining at the area to be inkjet printed based on the reflectivity.

6. The inkjet printing device according to claim 3, characterized in that, The inkjet printing device also includes: A flow sensor is disposed inside the connecting pipe for monitoring the gas flow rate inside the connecting pipe; A pressure sensor is disposed inside the connecting pipe for monitoring the pressure inside the connecting pipe; A pressure valve is disposed inside the connecting pipe and is used to regulate the gas pressure inside the connecting pipe.

7. The inkjet printing device according to claim 1, characterized in that, The adjusting mechanism includes: An adjustable distance slide rail is provided on the inkjet printer body, and the end of the adjustable distance slide rail extends toward the marking nozzle. An adjustable slider is slidably connected to an adjustable slide rail, and the cleaning nozzle is mounted on the adjustable slider. An adjusting bolt is threadedly connected to the adjusting slider, and the end of the adjusting bolt is used to abut and lock onto the adjusting slide rail.

8. The inkjet printing device according to claim 1, characterized in that, The inkjet printing device also includes: An ultraviolet curing lamp is installed on the body of the inkjet printer and located on one side of the marking nozzle, for curing the inkjet code; The inkjet printer body is equipped with ultraviolet photosensitive ink, and the marking printhead prints codes through the ultraviolet photosensitive ink.

9. The inkjet printing device according to claim 8, characterized in that, The inkjet printing device also includes: A lampshade is mounted on the inkjet printer body and surrounds the ultraviolet curing lamp.

10. The inkjet printing device according to claim 1, characterized in that, The cleaning nozzle is configured as a Venturi nozzle.

Images