UV lamp detection and automatic compensation method and printing equipment

Abstract

The invention relates to the field of ink-jet printing, and provides a UV lamp detection and automatic compensation method, which comprises the following steps: acquiring preset working parameters and actual working parameters of a UV lamp; and comparing the preset working parameters with the actual working parameters to obtain a comparison result, and compensating the UV lamp through the comparison result. The problem that in the prior art, the UV lamp is poor in curing effect due to the fact that the illumination intensity of the UV lamp is unstable is solved.

Description

Technical Field

[0001] The invention relates to the field of inkjet printing, and in particular to a UV lamp detection and automatic compensation method and printing equipment. Background Art

[0002] Inkjet printing technology refers to the technology of spraying ink droplets onto the substrate to be printed through the nozzle on the nozzle to obtain images or text. In the prior art, some substrates need to be irradiated with UV lamps to quickly dry and solidify the ink after inkjet printing.

[0003] UV lamps play a key role in the field of inkjet printing and have a significant impact on print quality. On the one hand, the life of UV lamps usually decreases with the increase of usage time or other factors, and the ultraviolet radiation output of UV lamps will gradually weaken, which may lead to a decrease in curing effect or uneven curing effect. The existing solution is to increase the curing time or adjust the settings of the printing equipment to compensate for the influence of light output attenuation, which will lead to a decrease in printing efficiency; if the attenuation rate is too fast, the UV lamp needs to be replaced frequently, which will lead to an increase in the cost of UV lamps. On the other hand, there is a problem that the surface of the UV lamp tube is contaminated, causing the UV light output to be blocked, resulting in a weakened curing effect, which also affects the print quality.

[0004] Therefore, for technicians, the problem of poor UV lamp curing effect caused by unstable UV lamp illumination intensity needs to be solved. Summary of the invention

[0005] In view of this, an embodiment of the present invention provides a UV lamp detection and automatic compensation method and a printing device to solve the problem of poor UV lamp curing effect caused by unstable UV lamp illumination intensity in the prior art.

[0006] In a first aspect, an embodiment of the present invention provides a UV lamp detection and automatic compensation method, the method comprising:

[0007] Get the preset working parameters and actual working parameters of the UV lamp;

[0008] The preset working parameters are compared with the actual working parameters to obtain a comparison result, and the UV lamp is compensated according to the comparison result.

[0009] Further, the preset working parameters include preset light energy density data, and the actual working parameters include actual light energy density data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0010] If the actual light energy density data is less than the preset light energy density data, increasing the irradiation power of the UV lamp;

[0011] If the actual illumination energy density data is equal to the preset illumination energy density data, the irradiation power of the UV lamp is maintained.

[0012] Further, the preset working parameters include preset electrical signal data, and the actual working parameters include actual electrical signal data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0013] If the actual electrical signal data is different from the preset electrical signal data, increasing the irradiation power of the UV lamp;

[0014] If the actual electrical signal data is the same as the preset electrical signal data, maintaining the irradiation power of the UV lamp;

[0015] The electrical signal data includes any one of voltage data, current data, and resistance data, or a combination thereof.

[0016] Further, the preset working parameters include preset electrical signal data, and the actual working parameters include actual electrical signal data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0017] If the actual electrical signal data is different from the preset electrical signal data and the actual light energy density data is less than the preset light energy density data, then increasing the irradiation power of the UV lamp;

[0018] If the actual electrical signal data is the same as the preset electrical signal data and the actual light energy density data is less than the preset light energy density data, cleaning the surface of the UV lamp;

[0019] If the actual electrical signal data is the same as the preset electrical signal data and the actual light energy density data is equal to the preset light energy density data, maintaining the irradiation power of the UV lamp;

[0020] The electrical signal data includes any one of voltage data, current data, and resistance data, or a combination thereof.

[0021] Further, the UV lamp includes a plurality of UV lamp modules; the preset working parameters include preset attenuation parameters of the UV lamp modules, and the actual working parameters include actual attenuation parameters of the UV lamp modules; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0022] When the preset attenuation parameter and the actual attenuation parameter are both less than 100%, comparing the actual attenuation parameter of each UV lamp module with the preset attenuation parameter;

[0023] If the actual attenuation parameter is greater than the preset attenuation parameter, adjusting the irradiation power of the UV lamp module;

[0024] The preset attenuation parameters of each UV lamp module are the same.

[0025] Furthermore, if the actual attenuation parameter is greater than the preset attenuation parameter, adjusting the irradiation power of the UV lamp module includes:

[0026] Performing a first irradiation intensity adjustment on the UV lamp module whose actual attenuation parameter is greater than the preset attenuation parameter;

[0027] Obtaining a compensation coefficient according to the preset attenuation parameter;

[0028] A second irradiation intensity adjustment is performed on the irradiation power of all the UV lamp modules according to the compensation coefficient.

[0029] Furthermore, if the actual attenuation parameter is greater than the preset attenuation parameter, after adjusting the irradiation power of the UV lamp module, the method further includes:

[0030] When the actual attenuation parameter is equal to 100%, the UV lamp module is replaced or the irradiation intensity of the adjacent UV lamp module is adjusted.

[0031] Furthermore, the comparing the preset working parameters with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result also includes:

[0032] If the actual illumination energy density data is greater than the preset illumination energy density data, the irradiation power of the UV lamp is reduced.

[0033] Furthermore, the comparing the preset working parameters with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result also includes:

[0034] If the actual electrical signal data is different from the preset electrical signal data and the actual light energy density data is greater than the preset light energy density data, the irradiation power of the UV lamp is reduced.

[0035] In a second aspect, an embodiment of the present invention provides a printing device, including:

[0036] An inkjet device for printing ink on a substrate;

[0037] UV curing equipment, used for curing and irradiating the substrate after inkjet printing, the UV curing equipment comprises:

[0038] Acquisition module: used to obtain the preset working parameters and actual working parameters of the UV lamp;

[0039] Compensation module: used for comparing the preset working parameters with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result.

[0040] In summary, the beneficial effects of the present invention are as follows: by obtaining the actual working parameters of the UV lamp, including comparative analysis of light energy density data, electrical signal data and the combination of the two, the irradiation power of the UV lamp is automatically adjusted through the comparison results to achieve the purpose of automatic compensation of the irradiation intensity. On the one hand, it can solve the problem of reduced printing quality and printing efficiency caused by shortened UV lamp life or contaminated UV lamp tubes; on the other hand, it can reduce the cost of frequent replacement of UV lamps and increase the service life of UV lamps. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings required for use in the embodiment of the present invention will be briefly introduced below. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work, and these are all within the protection scope of the present invention.

[0042] Figure 1 It is a flow chart of the UV lamp detection and automatic compensation method of the present invention;

[0043] Figure 2 This is a flow chart of Example 1 of the present invention;

[0044] Figure 3 This is a flow chart of Embodiment 2 of the present invention;

[0045] Figure 4 This is a flow chart of Embodiment 3 of the present invention;

[0046] Figure 5 This is a flow chart of Example 4 of the present invention;

[0047] Figure 6This is a flow chart of Example 4 of the present invention;

[0048] Figure 7 This is a schematic diagram of the printing device according to Example 6 of the present invention. DETAILED DESCRIPTION

[0049] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and Examples. It should be understood that the specific embodiments described herein are only configured to explain the present invention and are not configured to limit the present invention. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by illustrating examples of the present invention.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0051] UV lamps play a key role in the field of inkjet printing and have a significant impact on print quality. On the one hand, the life of UV lamps usually increases with the use time, and the ultraviolet radiation output of UV lamps will gradually weaken, which may lead to uneven curing and reduced curing effect. The existing solution is to increase the curing time or adjust the settings of the printing equipment to compensate for the influence of light output attenuation, which will lead to reduced printing efficiency; if the attenuation rate is too fast, the UV lamp needs to be replaced frequently, which will lead to higher UV lamp costs. On the other hand, there is a problem that the surface of the UV lamp tube is contaminated by ink, causing the UV light output to be blocked, resulting in a weakened curing effect, which also affects the print quality.

[0052] To solve the above problems, see Figure 1 In a first aspect, an embodiment of the present invention provides a UV lamp detection and automatic compensation method, the method comprising:

[0053] S1: Obtaining preset working parameters and actual working parameters of the UV lamp;

[0054] S2: Compare the preset working parameters with the actual working parameters to obtain a comparison result, and compensate the UV lamp according to the comparison result.

[0055] See also Figure 1 In this embodiment, the compensation includes: measures taken to improve the curing effect and curing uniformity, including adjusting the irradiation intensity, cleaning the UV lamp, replacing the UV lamp, etc. The actual working parameters of the UV lamp are obtained by detecting the light energy density and / or electrical signal data or attenuation parameters of the UV lamp, and the actual working parameters are compared with the preset working parameters. The working state of the UV lamp is detected through the comparison results, and the irradiation power of the UV lamp is selectively adjusted to achieve the purpose of automatic compensation of the irradiation intensity, ensuring that the irradiation effect of the UV lamp is always maintained within a certain range. On the one hand, it can solve the problem of uneven curing effect and poor curing effect caused by the shortened life of the UV lamp or the contamination of the UV lamp tube, and further solve the problem of reduced printing quality and printing efficiency; on the other hand, it can reduce the cost of frequent replacement of UV lamps and increase the service life of UV lamps.

[0056] Example 1

[0057] Further, the preset working parameters include preset light energy density data, and the actual working parameters include actual light energy density data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0058] S211: If the actual light energy density data is less than the preset light energy density data, increasing the irradiation power of the UV lamp;

[0059] S212: If the actual illumination energy density data is equal to the preset illumination energy density data, the irradiation power of the UV lamp is maintained.

[0060] Furthermore, the comparing the preset working parameters with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result also includes:

[0061] S213: If the actual light energy density data is greater than the preset light energy density data, reducing the irradiation power of the UV lamp.

[0062] See also Figure 2In this embodiment, a detection device such as a UV energy meter is used to detect the light energy density data of the UV lamp. A UV curing device uses at least one UV energy meter. During detection, the UV energy meter can be within the irradiation range of the UV lamp to ensure that the UV energy meter can collect the light energy density data of the UV lamp. When the actual light energy density detected is equal to the preset light energy density, the UV lamp has not aged and decayed, and is in a normal working state. At this time, there is no need to adjust the irradiation power; when the actual light energy density detected is less than the preset light energy density, it proves that the UV lamp is aged and the irradiation intensity is decayed. At this time, the irradiation power of the UV lamp is adjusted to enhance the UV lamp so that the UV lamp after the enhanced irradiation power can reach the preset light energy density value. Similarly, when the actual light energy density detected is greater than the preset light energy density, the irradiation intensity of the UV lamp can be adjusted to reduce to protect the UV lamp. Excessive irradiation intensity will prevent the ink from being fully leveled, that is, cured, and will also lead to poor curing effects, affecting print quality.

[0063] By detecting the light energy density and automatically adjusting the irradiation power of the UV lamp according to the detection result, the printing quality can be improved, the life of the UV lamp can be extended, energy can be saved, and automatic control can be achieved, thereby improving the performance and efficiency of the printing equipment. When the UV lamp is used for a long time, the UV light intensity emitted by the UV lamp decreases, the curing effect of the UV ink may be affected, and the printing quality is reduced; this embodiment can ensure that the UV light energy density is always maintained at an appropriate level by automatically compensating the irradiation power, thereby improving the printing quality and curing effect. By monitoring the UV light energy density and adjusting the irradiation power in time, the life of the UV lamp can be better protected, and excessive loss or excessive load on the lamp tube caused by excessive or low irradiation power can be avoided, thereby extending the service life of the UV lamp and reducing the frequency and cost of replacement and maintenance. When the UV light energy density decreases, increasing the irradiation power can make up for the energy loss and ensure that the UV energy required in the printing process is always sufficient. However, if the UV light energy density is maintained at a high level and does not exceed the required range, excessive energy use can be avoided. By dynamically adjusting the irradiation power, effective use of energy can be achieved while ensuring the curing effect. Through real-time monitoring of the light energy density data, automatic control of the UV lamp irradiation power can be achieved. After detecting a drop in light energy density, the system can automatically adjust the irradiation power without manual intervention; this automated control not only improves production efficiency, but also reduces the workload of operators and reduces curing problems caused by operating errors.

[0064] Example 2

[0065] Further, the preset working parameters include preset electrical signal data, and the actual working parameters include actual electrical signal data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0066] S221: If the actual electrical signal data is different from the preset electrical signal data, increasing the irradiation power of the UV lamp;

[0067] S222: If the actual electrical signal data is the same as the preset electrical signal data, maintaining the irradiation power of the UV lamp;

[0068] The electrical signal data includes any one of voltage data, current data, and resistance data, or a combination thereof.

[0069] See also Figure 3 In this embodiment, only detection equipment such as an electrical signal detection device is used to detect the current, voltage and resistance of the UV lamp. If the electrical signal data does not change, it proves that the UV lamp is not aged, so there is no need to adjust the irradiation power; if the electrical signal data changes, it proves that the UV lamp is aged, and the irradiation power needs to be increased accordingly to ensure the normal operation of the UV lamp.

[0070] The electrical signal detection device can monitor the changes in the current, resistance or voltage of the UV lamp. In addition to judging the aging of the UV lamp, it can also be used for fault detection and alarm. When the current, resistance or voltage is abnormal, an alarm can be issued to remind the operator to repair or replace it. This helps prevent equipment failures, reduce production interruptions and maintenance costs.

[0071] The electrical signal detection device can detect only one of the current, resistance or voltage. In order to improve the detection accuracy, multiple electrical signals can also be detected at the same time, and data can be collected and analyzed in a coordinated manner to achieve a more accurate detection effect.

[0072] Example 3

[0073] Further, the preset working parameters include preset electrical signal data, and the actual working parameters include actual electrical signal data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0074] S231: If the actual electrical signal data is different from the preset electrical signal data and the actual light energy density data is less than the preset light energy density data, increasing the irradiation power of the UV lamp;

[0075] S232: If the actual electrical signal data is the same as the preset electrical signal data and the actual light energy density data is less than the preset light energy density data, cleaning the surface of the UV lamp;

[0076] S233: If the actual electrical signal data is the same as the preset electrical signal data and the actual light energy density data is equal to the preset light energy density data, maintaining the irradiation power of the UV lamp;

[0077] The electrical signal data includes any one of voltage data, current data, and resistance data, or a combination thereof.

[0078] Furthermore, the comparing the preset working parameters with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result also includes:

[0079] S234: If the actual electrical signal data is different from the preset electrical signal data and the actual light energy density data is greater than the preset light energy density data, then the irradiation power of the UV lamp is reduced.

[0080] See also Figure 4 In this embodiment, if the actual light energy density caused by the UV lamp being contaminated is less than the preset light energy density, the problem of uneven UV lamp irradiation still exists even if the UV lamp power is increased, which affects the curing quality and further affects the printing quality. Therefore, this embodiment detects the electrical signal data in real time on the premise of detecting the light energy density, and judges whether the UV lamp is aged or the UV lamp is contaminated based on the detection results of the light energy density data and the electrical signal data, and determines whether to adjust the irradiation power of the UV lamp based on the final judgment. The electrical signal detection device is used to detect the current, resistance or voltage of the UV lamp. If the actual UV lamp current, resistance or voltage detected is different from the preset current, resistance or voltage data, and the actual light energy density data detected by the UV energy meter is less than the preset light energy density data, it proves that the UV lamp has an aging problem and the irradiation power needs to be increased; if the actual UV lamp current, resistance or voltage detected is the same as the preset current, resistance or voltage data, but the actual light energy density data detected by the UV energy meter is less than the preset light energy density data, it proves that the UV lamp beads have not aged, and the problem may be that the irradiation intensity has decreased due to contamination on the surface of the UV lamp tube. At this time, cleaning the UV lamp tube can ensure the curing effect and printing quality.

[0081] The electrical signal detection device can detect only one of the current, resistance or voltage. In order to improve the detection accuracy, multiple electrical signals can also be detected at the same time, and data can be collected and analyzed in a coordinated manner to achieve a more accurate detection effect.

[0082] By adding the detection of electrical signal data such as current, resistance or voltage of UV lamps on the premise of detecting light energy density, the aging of UV lamps can be judged more accurately, the pollutants on the lamp tubes can be cleaned in time, equipment failures can be prevented, and refined management can be achieved, thereby further improving the performance and benefits of printing equipment. UV lamp aging may cause changes in current, resistance or voltage. By monitoring the changes in these parameters through an electrical signal detection device, the aging of UV lamps can be judged more accurately. If changes in current, resistance or voltage are detected, it can be determined that the UV lamp is aging, and corresponding measures can be taken to increase the irradiation power to compensate for the effects of aging. When the UV energy meter detects a decrease in light energy density, but no change in current, resistance or voltage, it may mean that there is a contamination problem on the surface of the UV lamp, such as dust, grease, ink, etc. At this time, the detection device can detect this situation and remind the operator to clean the UV lamp. Timely cleaning of pollutants can restore the normal working state of the UV lamp and ensure the curing effect and printing quality. By monitoring the current, resistance or voltage of the UV lamp, potential fault problems can also be discovered early. If an abnormal current, resistance or voltage is detected by an electrical signal detection device, timely measures can be taken to repair or replace the equipment, thereby avoiding serious equipment failures and reducing production interruptions and maintenance costs. By jointly detecting light energy density data and electrical signal data, it is possible to achieve refined management of UV lamps, monitor the light energy density and electrical signal parameters of UV lamps, adjust the irradiation power or perform cleaning and maintenance in a timely manner, and keep the UV lamp in good working condition. This refined management can improve production efficiency, extend equipment life, and reduce unnecessary repairs and replacements.

[0083] Example 4

[0084] Further, the UV lamp includes a plurality of UV lamp modules; the preset working parameters include preset attenuation parameters of the UV lamp modules, and the actual working parameters include actual attenuation parameters of the UV lamp modules; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0085] S241: When the preset attenuation parameter and the actual attenuation parameter are both less than 100%, comparing the actual attenuation parameter of each UV lamp module with the preset attenuation parameter;

[0086] S242: If the actual attenuation parameter is greater than the preset attenuation parameter, adjusting the irradiation power of the UV lamp module;

[0087] The preset attenuation parameters of each UV lamp module are the same.

[0088] Furthermore, if the actual attenuation parameter is greater than the preset attenuation parameter, after adjusting the irradiation power of the UV lamp module, the method further includes:

[0089] S243: When the actual attenuation parameter is equal to 100%, the UV lamp module is replaced or the irradiation intensity of an adjacent UV lamp module is adjusted.

[0090] See also Figure 5 In this embodiment, the attenuation parameter is a value between 0-100%, and the adjustment of the irradiation intensity includes increasing or decreasing the irradiation intensity of the UV lamp module. Since the UV lamp is usually composed of multiple UV lamp modules, and when each UV lamp module works independently, the preset attenuation parameters are the same; when the various UV lamp modules are combined into one UV lamp to work together, due to the position arrangement or other reasons, the heat dissipation conditions of different UV lamp modules are different when they work. Poor heat dissipation may cause the operating temperature of the UV lamp to increase, thereby increasing the attenuation parameter of the UV lamp module and reducing the life of the UV lamp module. The attenuation parameter is within 100%, and the higher the attenuation parameter, the more serious the attenuation of the UV lamp module. In order to improve the overall stability of the UV lamp, the attenuation parameters of each UV lamp are detected and compared in real time, and the irradiation power of the UV lamp module with faster attenuation is increased to ensure the stability of the curing effect. In another embodiment, in order to ensure that the life of the UV lamp module is extended, when the irradiation intensity of the UV lamp module adjacent to the UV lamp module with faster decay is sufficient to compensate for the irradiation intensity of the UV lamp module with faster decay, the irradiation power of the UV lamp module with faster decay can be adjusted to reduce its working power and indirectly reduce the heating temperature, thereby extending the life of the UV lamp module with faster decay.

[0091] In the prior art, when a UV lamp module cannot be used, in order to ensure the uniformity of the UV lamp curing effect, all UV lamp modules need to be replaced simultaneously, which increases the cost of UV lamp replacement. Therefore, when the attenuation parameter is equal to 100%, it proves that the UV lamp module is damaged. At this time, the UV lamp module or the entire UV lamp can be replaced to ensure the stability of curing; secondly, when it is detected that the attenuation parameter of a UV lamp module is equal to 100%, the irradiation intensity of the UV lamp module adjacent to the damaged UV lamp module is adjusted to compensate for the damaged UV lamp module, thereby reducing the production interruption caused by replacing the UV lamp and ensuring the curing effect and stability.

[0092] Furthermore, if the actual attenuation parameter is greater than the preset attenuation parameter, adjusting the irradiation power of the UV lamp module includes:

[0093] S2421: performing a first irradiation intensity adjustment on the UV lamp module whose actual attenuation parameter is greater than the preset attenuation parameter;

[0094] S2422: Obtaining a compensation coefficient according to the preset attenuation parameter;

[0095] S2423: Perform a second irradiation intensity adjustment on the irradiation power of all the UV lamp modules according to the compensation coefficient.

[0096] See also Figure 6 In this embodiment, after the UV lamp module is continuously aged according to the preset attenuation parameters, there is still a problem that the UV lamp irradiation cannot meet the curing requirements. At the same time, in reality, different UV lamp modules have different attenuation conditions due to different working conditions, different positions, and different heat dissipation. Therefore, the first irradiation intensity adjustment is compared with the preset attenuation parameters to make the irradiation intensity of different UV lamp modules unified at the irradiation intensity corresponding to the preset attenuation parameters; secondly, the corresponding compensation coefficient is obtained according to the preset attenuation parameters, and through the second irradiation intensity adjustment, all UV lamp modules are further compensated for the second irradiation intensity under the premise of the first irradiation intensity adjustment, so that the irradiation intensity of all UV lamp modules after compensation meets the irradiation requirements of curing. The attenuation of the UV lamp module at different stages is reflected in the preset attenuation parameters, and each stage corresponds to a compensation coefficient. By adjusting the compensation coefficient, the UV lamp module can always be kept at the set irradiation intensity when working; similarly, different inks and different products have different requirements for curing irradiation intensity, and the corresponding compensation coefficients are also different. In summary, the first irradiation intensity adjustment is to adjust the UV lamp modules with different attenuation degrees to make the irradiation intensity uniform; the second irradiation intensity adjustment is to adjust the irradiation intensity caused by the natural aging of the UV lamp module that does not reach the set irradiation intensity, so that the adjusted irradiation intensity meets the set irradiation intensity.

[0097] In another embodiment, the UV lamp modules can be reasonably allocated by analyzing the printed pattern, and the UV lamp modules can be controlled to work normally in areas with dense patterns, and the UV lamp power can be controlled to be reduced or the UV lamp modules in the corresponding areas can be turned off in areas with sparse patterns or no patterns, so as to ensure the curing effect while extending the service life of the UV lamp. By detecting and adjusting the attenuation parameters of the UV lamp modules, overuse or premature failure of certain UV lamp modules can be avoided. This helps to extend the life of the entire UV lamp system and improve the reliability and stability of the system.

[0098] Example 5

[0099] The comparing the preset working parameter with the actual working parameter to obtain a comparison result, and compensating the UV lamp according to the comparison result comprises:

[0100] Obtain the target irradiation parameters of the UV lamp corresponding to the current ink curing characteristics;

[0101] Get the actual irradiation parameters of the UV lamp;

[0102] According to the comparison result between the target irradiation parameters and the actual irradiation parameters, the irradiation intensity of the UV lamp is automatically compensated.

[0103] In this embodiment, in order to further improve the curing effect and curing efficiency of the UV lamp, the irradiation energy of the UV lamp can also be adjusted according to the photosensitivity of different inks, and the irradiation power of the UV lamp is still adjusted in real time to reach the target irradiation power after detection by a UV energy meter and / or an electrical signal detection device. The relationship between the spectral characteristics of the UV lamp and the curing characteristics of the ink is analyzed. Through the interaction between the wavelength and intensity of the UV lamp and the chemical composition and sensitivity of the ink, the design and use of the UV lamp can be optimized, thereby achieving better curing effects under different inks and improving the printing quality.

[0104] In another embodiment, the flow state of the ink is monitored in real time, and the working parameters of the UV lamp are adjusted in real time to adapt to the ink curing requirements at different ink leveling speeds to ensure the stability and consistency of the curing effect. Different shapes of three-dimensional substrates may require different irradiation coverage areas for curing, so the distribution of light energy density can also be detected by a UV energy meter to determine whether to increase the number of UV lamps or rearrange the UV lamps to improve the curing effect of different three-dimensional substrates.

[0105] Example 6

[0106] In a second aspect, an embodiment of the present invention provides a printing device, including:

[0107] An inkjet device for printing ink on a substrate;

[0108] UV curing equipment, used for curing and irradiating the substrate after inkjet printing, the UV curing equipment comprises:

[0109] Acquisition module: used to obtain the preset working parameters and actual working parameters of the UV lamp;

[0110] Compensation module: used for comparing the preset working parameters with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result.

[0111] Furthermore, the compensation module includes:

[0112] The preset working parameters include preset light energy density data, and the actual working parameters include actual light energy density data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0113] If the actual light energy density data is less than the preset light energy density data, increasing the irradiation power of the UV lamp;

[0114] If the actual illumination energy density data is equal to the preset illumination energy density data, the irradiation power of the UV lamp is maintained.

[0115] Furthermore, the compensation module includes:

[0116] The preset working parameters include preset electrical signal data, and the actual working parameters include actual electrical signal data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0117] If the actual electrical signal data is different from the preset electrical signal data, increasing the irradiation power of the UV lamp;

[0118] If the actual electrical signal data is the same as the preset electrical signal data, maintaining the irradiation power of the UV lamp;

[0119] The electrical signal data includes any one of voltage data, current data, and resistance data, or a combination thereof.

[0120] Furthermore, the compensation module includes:

[0121] The preset working parameters include preset electrical signal data, and the actual working parameters include actual electrical signal data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0122] If the actual electrical signal data is different from the preset electrical signal data and the actual light energy density data is less than the preset light energy density data, then increasing the irradiation power of the UV lamp;

[0123] If the actual electrical signal data is the same as the preset electrical signal data and the actual light energy density data is less than the preset light energy density data, cleaning the surface of the UV lamp;

[0124] If the actual electrical signal data is the same as the preset electrical signal data and the actual light energy density data is equal to the preset light energy density data, maintaining the irradiation power of the UV lamp;

[0125] The electrical signal data includes any one of voltage data, current data, and resistance data, or a combination thereof.

[0126] Furthermore, the compensation module includes:

[0127] The UV lamp includes a plurality of UV lamp modules; the preset working parameters include preset attenuation parameters of the UV lamp module, and the actual working parameters include actual attenuation parameters of the UV lamp module; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes:

[0128] When the preset attenuation parameter and the actual attenuation parameter are both less than 100%, comparing the actual attenuation parameter of each UV lamp module with the preset attenuation parameter;

[0129] If the actual attenuation parameter is greater than the preset attenuation parameter, adjusting the irradiation power of the UV lamp module;

[0130] The preset attenuation parameters of each UV lamp module are the same.

[0131] Furthermore, the compensation module includes:

[0132] If the actual attenuation parameter is greater than the preset attenuation parameter, adjusting the irradiation power of the UV lamp module includes:

[0133] Performing a first irradiation intensity adjustment on the UV lamp module whose actual attenuation parameter is greater than the preset attenuation parameter;

[0134] Obtaining a compensation coefficient according to the preset attenuation parameter;

[0135] A second irradiation intensity adjustment is performed on the irradiation power of all the UV lamp modules according to the compensation coefficient.

[0136] Furthermore, the compensation module includes:

[0137] If the actual attenuation parameter is greater than the preset attenuation parameter, after adjusting the irradiation power of the UV lamp module, the method further includes:

[0138] When the actual attenuation parameter is equal to 100%, the UV lamp module is replaced or the irradiation intensity of the adjacent UV lamp module is adjusted.

[0139] Furthermore, the compensation module includes:

[0140] The comparing the preset working parameter with the actual working parameter to obtain a comparison result, and compensating the UV lamp according to the comparison result further comprises:

[0141] If the actual illumination energy density data is greater than the preset illumination energy density data, the irradiation power of the UV lamp is reduced.

[0142] Furthermore, the compensation module includes:

[0143] The comparing the preset working parameter with the actual working parameter to obtain a comparison result, and compensating the UV lamp according to the comparison result further comprises:

[0144] If the actual electrical signal data is different from the preset electrical signal data and the actual light energy density data is greater than the preset light energy density data, the irradiation power of the UV lamp is reduced.

[0145] In summary, the present invention detects data such as light energy density, electrical signal data, and attenuation parameters, monitors the working status of UV in real time, and makes compensation adjustments to the UV lamp in a timely manner. On the one hand, it can solve the problem of reduced printing quality and printing efficiency caused by shortened UV lamp life or contaminated UV lamp tubes; on the other hand, it can reduce the cost of frequent replacement of UV lamps and increase the service life of UV lamps. The embodiments of the present invention can more accurately determine the aging of UV lamps and automatically and uniformly compensate for the aging condition. It can also clean the pollutants on the lamp tube in a timely manner, prevent equipment failures, and achieve refined management, thereby further improving the performance and benefits of printing equipment.

[0146] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0147] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present invention are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0148] It should also be noted that the exemplary embodiments mentioned in the present invention describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiments, or in a different order from the embodiments, or several steps can be performed simultaneously.

[0149] The above is only a specific implementation of the present invention. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working process of the system, module and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here. It should be understood that the protection scope of the present invention is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be covered within the protection scope of the present invention.

Claims

1. A UV lamp detection and automatic compensation method, characterized in that: The method comprises: Get the preset working parameters and actual working parameters of the UV lamp; The preset working parameters are compared with the actual working parameters to obtain a comparison result, and the UV lamp is compensated according to the comparison result.

2. The UV lamp detection and automatic compensation method according to claim 1, characterized in that: The preset working parameters include preset light energy density data, and the actual working parameters include actual light energy density data; The comparing the preset working parameter with the actual working parameter to obtain a comparison result, and compensating the UV lamp according to the comparison result comprises: If the actual light energy density data is less than the preset light energy density data, increasing the irradiation power of the UV lamp; If the actual illumination energy density data is equal to the preset illumination energy density data, the irradiation power of the UV lamp is maintained.

3. The UV lamp detection and automatic compensation method according to claim 1, characterized in that: The preset working parameters include preset electrical signal data, and the actual working parameters include actual electrical signal data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes: If the actual electrical signal data is different from the preset electrical signal data, increasing the irradiation power of the UV lamp; If the actual electrical signal data is the same as the preset electrical signal data, maintaining the irradiation power of the UV lamp; The electrical signal data includes any one of voltage data, current data, and resistance data, or a combination thereof.

4. The UV lamp detection and automatic compensation method according to claim 2, characterized in that: The preset working parameters include preset electrical signal data, and the actual working parameters include actual electrical signal data; the preset working parameters are compared with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result includes: If the actual electrical signal data is different from the preset electrical signal data and the actual light energy density data is less than the preset light energy density data, then increasing the irradiation power of the UV lamp; If the actual electrical signal data is the same as the preset electrical signal data and the actual light energy density data is less than the preset light energy density data, cleaning the surface of the UV lamp; If the actual electrical signal data is the same as the preset electrical signal data and the actual light energy density data is equal to the preset light energy density data, maintaining the irradiation power of the UV lamp; The electrical signal data includes any one of voltage data, current data, and resistance data, or a combination thereof.

5. The UV lamp detection and automatic compensation method according to claim 1, characterized in that: The UV lamp includes a plurality of UV lamp modules; the preset working parameters include preset attenuation parameters of the UV lamp modules, and the actual working parameters include actual attenuation parameters of the UV lamp modules; The comparing the preset working parameter with the actual working parameter to obtain a comparison result, and compensating the UV lamp according to the comparison result comprises: When the preset attenuation parameter and the actual attenuation parameter are both less than 100%, comparing the actual attenuation parameter of each UV lamp module with the preset attenuation parameter; If the actual attenuation parameter is greater than the preset attenuation parameter, adjusting the irradiation power of the UV lamp module; The preset attenuation parameters of each UV lamp module are the same.

6. The UV lamp detection and automatic compensation method according to claim 5, characterized in that: If the actual attenuation parameter is greater than the preset attenuation parameter, adjusting the irradiation power of the UV lamp module includes: Performing a first irradiation intensity adjustment on the UV lamp module whose actual attenuation parameter is greater than the preset attenuation parameter; Obtaining a compensation coefficient according to the preset attenuation parameter; A second irradiation intensity adjustment is performed on the irradiation power of all the UV lamp modules according to the compensation coefficient.

7. The UV lamp detection and automatic compensation method according to claim 5, characterized in that: If the actual attenuation parameter is greater than the preset attenuation parameter, after adjusting the irradiation power of the UV lamp module, the method further includes: When the actual attenuation parameter is equal to 100%, the UV lamp module is replaced or the irradiation intensity of the adjacent UV lamp module is adjusted.

8. The UV lamp detection and automatic compensation method according to claim 2, characterized in that: The comparing the preset working parameter with the actual working parameter to obtain a comparison result, and compensating the UV lamp according to the comparison result further comprises: If the actual illumination energy density data is greater than the preset illumination energy density data, the irradiation power of the UV lamp is reduced.

9. The UV lamp detection and automatic compensation method according to claim 4, characterized in that: The comparing the preset working parameter with the actual working parameter to obtain a comparison result, and compensating the UV lamp according to the comparison result further comprises: If the actual electrical signal data is different from the preset electrical signal data and the actual light energy density data is greater than the preset light energy density data, the irradiation power of the UV lamp is reduced.

10. A printing device, characterized in that: include: An inkjet device for printing ink on a substrate; UV curing equipment, used for curing and irradiating the substrate after inkjet printing, the UV curing equipment comprises: Acquisition module: used to obtain the preset working parameters and actual working parameters of the UV lamp; Compensation module: used for comparing the preset working parameters with the actual working parameters to obtain a comparison result, and compensating the UV lamp according to the comparison result.

Images