Online detection equipment and fluid distribution equipment

Abstract

The embodiment of the utility model provides online detection equipment and fluid distribution equipment, and relates to the technical field of printing and dyeing, and the online detection equipment comprises a distribution assembly, a conveying assembly and an online detection assembly; the liquid is distributed on the sheet-shaped base material by the distribution assembly, and a marker is uniformly mixed in the liquid; the conveying assembly conveys a sheet-shaped base material in a specified direction, and the conveyed sheet-shaped base material passes through a liquid distribution area of the distribution assembly and a marker detection area of the online detection assembly; the on-line detection assembly is used for detecting the marker on the sheet-shaped base material in the detection range of the on-line detection assembly in the sheet-shaped base material conveying process, and a liquid distribution uniformity result is obtained. By applying the technical scheme provided by the embodiment of the invention, the uniformity evaluation rate can be improved, and the stability and reliability of a uniformity detection result and the printing and dyeing efficiency of the sheet-shaped base material are improved.

Description

Technical Field

[0001] This application relates to the field of printing and dyeing technology, and particularly to an on-line detection device and a fluid distribution device. Background Art

[0002] In the process of printing and dyeing, dyeing uniformity is an important quality index for the printing and dyeing of sheet substrates. At present, to ensure the printing and dyeing quality, users will use printing and dyeing equipment to print and dye a section of the substrate, and observe whether the dyeing of the printed substrate after printing is uniform; in the case of uniform dyeing, production is started, that is, the printing and dyeing equipment is used to print and dye the substrate to obtain the required substrate. In this printing and dyeing method, it is necessary to manually observe whether the dyeing is uniform, which consumes a large amount of manpower and time, and there are detection errors, making the uniformity detection results unstable; in addition, it is necessary to first detect whether the dyeing is uniform, and production can only be started when the dyeing is uniform, which further exacerbates the consumption of time, resulting in low printing and dyeing efficiency. Moreover, the substrate for detecting whether the dyeing is uniform is the substrate for experimental testing and cannot be applied to actual production, resulting in waste of resources and increased material costs. Summary of the Utility Model

[0003] The purpose of the embodiments of this application is to provide an on-line detection device and a fluid distribution device to improve the rate of uniformity evaluation and the stability and reliability of uniformity detection results. The specific technical solutions are as follows:

[0004] In a first aspect, the embodiments of this application provide an on-line detection device for detecting a sheet substrate with distributed liquid, including:

[0005] A conveying component configured to convey the sheet substrate in a specified direction; wherein, a marker is uniformly mixed in the liquid distributed on the sheet substrate;

[0006] An on-line detection component arranged in the area through which the sheet substrate passes; configured to detect the marker on the sheet substrate within the detection range of the on-line detection component during the conveying process of the sheet substrate;

[0007] And a control unit communicatively connected to the on-line detection component, configured to judge the uniformity of the liquid distribution on the sheet substrate based on the detection result of the on-line detection component.

[0008] In some embodiments, the on-line detection component is configured with an optical sensor, an infrared sensor, and / or a chemical sensor.

[0009] In some embodiments, the conveying component includes a transmission sub-component and a driving sub-component;

[0010] The surface of the transmission sub-component is a plane, and the sheet substrate is placed on the surface of the transmission sub-component;

[0011] The driving sub - assembly is arranged at both ends of the transmission sub - assembly and is configured to drive the transmission sub - assembly to move in a specified direction, and the transmission sub - assembly drives the sheet - like substrate to move in the specified direction.

[0012] In some embodiments, the surface roughness of the transmission sub - assembly is greater than a preset roughness.

[0013] In some embodiments, the surface material of the transmission sub - assembly is rubber.

[0014] In some embodiments, the conveying assembly includes two roller mechanisms; each roller mechanism includes two rollers, the sheet - like substrate passes between the two rollers included in each roller mechanism, and the two rollers included in each roller mechanism roll while squeezing each other to drive the sheet - like substrate to move in a specified direction.

[0015] In some embodiments, the marker is a fluorescent dye or a nano - pigment.

[0016] In a second aspect, an embodiment of the present application provides a fluid distribution device, which includes a distribution assembly, a conveying assembly, and an on - line detection device;

[0017] The distribution assembly is configured to distribute a liquid onto a sheet - like substrate; wherein, the liquid is uniformly mixed with a marker;

[0018] The conveying assembly is configured to convey the sheet - like substrate in a specified direction, and the conveyed sheet - like substrate passes through the area where the liquid is distributed by the distribution assembly and the area where the on - line detection device detects the marker;

[0019] The on - line detection device is configured to detect the marker on the sheet - like substrate within the detection range of the on - line detection device during the conveying process of the sheet - like substrate, and obtain the uniformity result of the liquid distribution.

[0020] In some embodiments, the on - line detection device includes:

[0021] An on - line detection component, arranged in the area where the sheet - like substrate passes through; configured to detect the marker on the sheet - like substrate within the detection range of the on - line detection component during the conveying process of the sheet - like substrate;

[0022] And a control unit, communicatively connected to the on - line detection component, and configured to judge the uniformity of the liquid distribution on the sheet - like substrate based on the detection result of the on - line detection component.

[0023] In some embodiments, the on - line detection component is configured with an optical sensor, an infrared sensor, and / or a chemical sensor.

[0024] In some embodiments, the fluid distribution device further includes a supply component; the supply component is connected to the distribution component through a conduit;

[0025] The supply component is configured to supply liquid to the distribution component.

[0026] In some embodiments, the supply component further includes a marker distribution mechanism;

[0027] The marker distribution mechanism is configured to uniformly distribute the marker in the liquid.

[0028] In some embodiments, the distribution component further includes a rolling mechanism and a first control mechanism. The control component is communicatively connected to the first control mechanism, and the first control mechanism is electrically connected to the rolling mechanism;

[0029] The rolling mechanism includes two rollers. The first control mechanism controls the two rollers to roll while pressing against each other according to a specified rolling pressure, so as to uniformly distribute the liquid on the sheet substrate;

[0030] The control component sends information indicating the rolling pressure to the first control mechanism.

[0031] In some embodiments, the marker is a fluorescent dye or a nano pigment.

[0032] Advantages of the embodiments of the present application:

[0033] In the technical solution provided by the embodiments of the present application, a marker that can be recognized by an in-line detection component is mixed into the liquid. During the process of conveying the sheet substrate, the in-line detection component can automatically detect the marker on the sheet substrate on the production line in real time, obtain the distribution of the marker, and then obtain the uniformity result of the liquid distribution. The fluid distribution device can use the uniformity result to adjust the liquid distribution for dyeing the sheet substrate, ensuring uniform dyeing of the sheet substrate. In the embodiments of the present application, based on the marker, the dyeing uniformity is automatically detected during the printing process of the sheet substrate without manual participation, saving manpower and time, reducing the detection error caused by human factors, improving the stability and reliability of the uniformity detection result, and improving the printing efficiency of the sheet substrate. In addition, during the printing process of the sheet substrate, the dyeing uniformity is automatically detected without preparing additional sheet substrates for detecting the dyeing uniformity, reducing the material cost. It can be seen that the embodiments of the present application improve the rate of uniformity evaluation and improve the stability and reliability of the uniformity detection result.

[0034] Of course, it is not necessary for any product or method implementing the present application to achieve all the above advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other embodiments can also be obtained based on these drawings.

[0036] Figure 1 A schematic flowchart of an online detection method provided by an embodiment of the present application;

[0037] Figure 2a The first schematic diagram of the first preset time interval provided by an embodiment of the present application;

[0038] Figure 2b The second schematic diagram of the first preset time interval provided by an embodiment of the present application;

[0039] Figure 2c The third schematic diagram of the first preset time interval provided by an embodiment of the present application;

[0040] Figure 3a The first schematic diagram of the detection area provided by an embodiment of the present application;

[0041] Figure 3b The second schematic diagram of the detection area provided by an embodiment of the present application;

[0042] Figure 4 The first structural schematic diagram of the fluid distribution device provided by an embodiment of the present application;

[0043] Figure 5 The second structural schematic diagram of the fluid distribution device provided by an embodiment of the present application;

[0044] Figure 6 A structural schematic diagram of an online detection device provided by an embodiment of the present application;

[0045] Figure 7 A structural schematic diagram of a control component provided by an embodiment of the present application. Detailed implementation manners

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art based on the present application belong to the scope of protection of the present application.

[0047] In the current dyeing and printing method, it is necessary to manually observe whether the dyeing is uniform first, and only when the dyeing is uniform can production be carried out, which consumes a large amount of manpower and time, resulting in low dyeing and printing efficiency. In addition, there are detection errors, making the uniformity detection results unstable. Moreover, the substrate for detecting whether the dyeing is uniform is the substrate for experimental testing and cannot be applied to actual production, resulting in waste of resources and increased material costs.

[0048] To solve the above problems, an embodiment of the present application provides an online detection method. As Figure 1 shown, this method can be applied to an online detection device. The online detection device is communicatively connected to a fluid distribution device (such as a dyeing and printing device), or the online detection device is installed on the fluid distribution device as a component (such as the following online detection device). The online detection method includes the following steps:

[0049] Step S101: During the transportation of the sheet substrate, at intervals of a first preset time period, detect the markers on the sheet substrate in multiple detection areas. The liquid distributed on the sheet substrate contains markers.

[0050] Step S102: Calculate the marker parameters on the sheet substrate in multiple detection areas within a second preset time period. The second preset time period includes one or more first preset time periods.

[0051] Step S103: Determine the uniformity of the liquid distribution according to the marker parameters in multiple detection areas.

[0052] In the technical solution provided by the embodiment of the present application, during the transportation of the sheet substrate, at intervals of a first preset time period, detect the markers on the sheet substrate in multiple detection areas, and calculate the marker parameters on the sheet substrate in multiple detection areas within a second preset time period. By comparing the marker parameters in multiple detection areas, the uniformity of the liquid distribution is determined. In the embodiment of the present application, the liquid is mixed with markers, and the uniformity of the liquid distribution can represent the uniformity of dyeing. Using the marker parameters, during the transportation of the sheet substrate in actual production, the uniformity of the liquid distribution is determined in real time and automatically without manual participation, saving manpower and time, reducing the detection errors caused by human factors, improving the stability and reliability of the uniformity detection results, and improving the dyeing and printing efficiency. In addition, in the embodiment of the present application, during the transportation of the sheet substrate in actual production, the uniformity of the liquid distribution is automatically detected without the need to prepare additional substrates to detect the uniformity of dyeing, reducing the material costs. It can be seen that the embodiment of the present application improves the rate of uniformity evaluation and improves the stability and reliability of the uniformity detection results.

[0053] In the embodiments of the present application, a marker is a substance with optical properties such as absorption, emission, or scattering, or chemical properties, and has an identification function, and this substance can be recognized by an on-line detection device. For example, the marker can be a fluorescent dye or a nano-pigment. In the embodiments of the present application, the marker can only have optical properties or chemical properties, without color or pattern, so as to avoid the problem that the marker affects the color of the liquid, resulting in the dyeing effect not meeting the expectations.

[0054] In the embodiments of the present application, an on-line detection component can be configured on the on-line detection device. The on-line detection component has a sensor capable of recognizing the marker, so that the on-line detection device can use the sensor to detect the marker on the sheet-shaped substrate. For example, if the marker has certain optical properties such as visible light properties and / or infrared properties, the on-line detection component can be configured with an optical sensor or an infrared sensor; if the marker has certain chemical properties such as radiation properties, the on-line detection component can be configured with a chemical sensor.

[0055] In the embodiments of the present application, only one sensor can be configured on the on-line detection component, such as only an optical sensor. In this way, the cost of the on-line detection device can be effectively reduced, and the cost of the on-line detection method can be reduced. Multiple sensors can also be configured on the on-line detection component, such as an optical sensor, an infrared sensor, and a chemical sensor. In this way, the uniformity detection results of the liquid can be comprehensively obtained through multiple sensors, and the accuracy of the dyeing uniformity detection results can be improved.

[0056] In addition, in the embodiments of the present application, in order to improve the timeliness of the dyeing uniformity detection, the on-line detection component can be arranged at a position after the device (such as a roller mechanism, a spraying component, or a dyeing liquid pool) that makes the liquid adhere to the sheet-shaped substrate and before the device that performs the next processing on the sheet-shaped substrate with the adhered liquid. For example, in a printing and dyeing scenario, the device that makes the liquid adhere to the sheet-shaped substrate is a roller mechanism, the roller mechanism distributes the liquid on the substrate, and the device that performs the next processing on the sheet-shaped substrate with the adhered liquid is a drying mechanism. The on-line detection component can be installed after the roller mechanism and before the drying mechanism. In order to further improve the timeliness of the dyeing uniformity detection, the closer the on-line detection component is to the roller mechanism, the better.

[0057] Among them, the dyeing liquid pool contains liquid, and the sheet-shaped substrate is immersed in the liquid in the dyeing liquid pool, so that the liquid adheres to the sheet-shaped substrate. The spraying component sprays the liquid on the sheet-shaped substrate, so that the liquid adheres to the sheet-shaped substrate. The roller mechanism makes the liquid evenly distributed on the sheet-shaped substrate. The fluid distribution device can include one or more of the dyeing liquid pool, the spraying component, and the roller mechanism. When the fluid distribution device includes multiple devices among the dyeing liquid pool, the spraying component, and the roller mechanism, the on-line detection component is located after the last device in the conveying direction among these multiple devices.

[0058] By detecting the dyeing uniformity, when dyeing non-uniformity is found, the parameters of the fluid distribution device can be adjusted in a timely manner to ensure dyeing uniformity and improve product quality.

[0059] Due to the above-mentioned beneficial effects of the on-line detection device, the on-line detection device can be widely applied to various fields for printing and dyeing to meet the requirements of high quality and personalization. For example, the fluid distribution device configured with the on-line detection device can be used as a digital printing and dyeing device, applied to the textile field for textile design and printing, can also be applied to the medical field for dyeing medical fabrics, and can also be applied to the home decoration field for dyeing curtains, bedding, etc.

[0060] In the above step S101, the sheet substrate can be made of materials such as fibers or fabrics. A liquid containing markers is distributed on the sheet substrate, and the sheet substrate is continuously conveyed into the detection range of the on-line detection device. The detection range is divided into multiple detection areas, and then the on-line detection device detects the markers on the sheet substrate in each detection area.

[0061] In the embodiment of the present application, the time interval for the on-line detection device to detect the markers is a first preset duration, and the first preset duration can be set according to actual needs.

[0062] To save the processing resources of the on-line detection device, the first preset duration can be set to a relatively large value so that the areas where the markers are detected on the sheet substrate twice in succession do not connect, as Figure 2a shown, Area 1 and Area 2 are the areas where the on-line detection device detects the markers on the sheet substrate, and Area 3 is the area where the on-line detection device does not detect the markers on the sheet substrate.

[0063] To improve the detection accuracy, the first preset duration can be set to a relatively small value so that the areas where the markers are detected on the sheet substrate twice in succession connect or partially overlap, as Figure 2b and Figure 2c shown, Area 1 and Area 2 are the areas where the on-line detection device detects the markers on the sheet substrate. While ensuring the detection accuracy and saving the processing resources of the on-line detection device, the first preset duration can be set to a value that matches the conveying speed of the sheet substrate, and the first preset duration makes the areas where the markers are detected on the sheet substrate twice in succession connect (as Figure 2b shown).

[0064] In some embodiments, the first preset duration can be determined by the following steps: obtaining the conveying speed of the sheet substrate; obtaining the detection length for performing one marker detection; calculating the quotient of the detection length and the conveying speed to obtain the first preset duration.

[0065] In the embodiment of the present application, the first preset duration can be determined by the following formula (1).

[0066] T1 = L1 / V (1)

[0067] In formula (1), T1 represents the first preset duration, L1 represents the detection length of the online detection device for performing a marker detection once, and V represents the conveying speed of the sheet substrate. The detection length of the online detection device for performing a marker detection once is the length of the detection range of the online detection device in the conveying direction of the sheet substrate, such as Figure 2b the L1 shown

[0068] In the embodiments of the present application, the division method of the detection area can be set according to actual needs, as long as every two detection areas do not completely overlap

[0069] In one example, the online detection device can divide the detection range of the online detection device into a preset number of detection areas in a direction perpendicular to the substrate conveying direction. For example, as Figure 3a shown in the schematic diagram of the detection area, the preset number is 3, and the online detection device divides the detection range into 3 detection areas in a direction perpendicular to the substrate conveying direction, such as Figure 3a the detection areas 1 to 3 shown

[0070] In another example, the online detection device can randomly divide a preset number of detection areas with preset sizes. For example, as Figure 3b shown in the schematic diagram of the detection area, the preset number is 3, and the preset size is d*h. The online detection device randomly divides the detection range into 3 detection areas of d*h, such as Figure 3b the detection areas 1 to 3 shown

[0071] In some embodiments, when the online detection device detects the marker based on optical characteristics, the above step S101 may be: collecting an image of the sheet substrate; performing optical characteristic detection on the image to obtain the markers on the sheet substrate in multiple detection areas. The optical characteristics may be visible light characteristics and / or infrared characteristics

[0072] When detecting the marker based on optical characteristics, the online detection device may detect the number of pixels occupied by the marker in the image, or detect the area occupied by the marker in the image, and this is not limited

[0073] In some embodiments, when the online detection device detects the marker based on chemical characteristics, the above step S101 may be: detecting the chemical characteristics of the sheet substrate in multiple detection areas to obtain the markers on the sheet substrate in multiple detection areas. The chemical characteristics may include radiation characteristics, or other chemical characteristics

[0074] When detecting markers based on chemical properties, the on-line detection device can detect the radiation intensity on the sheet substrate, the number of markers emitting radiation, etc.

[0075] In the above step S102, the marker parameters can be the number of markers, the concentration of markers, the area of markers, the radiation intensity, etc., and are not limited thereto.

[0076] In the embodiments of the present application, the time interval for the on-line detection device to calculate the marker parameters is the second preset duration, and the second preset duration can be set according to actual needs. The second preset duration can also be referred to as the preset step size. To save the processing resources of the on-line detection device, the second preset duration can be set to a smaller value. To improve the detection accuracy, the second preset duration can be set to a larger value. In addition, when the concentration of markers in the liquid is high, while improving the detection accuracy, to save the processing resources of the on-line detection device, the second preset duration can be adjusted to be smaller.

[0077] In some embodiments, the second preset duration can be determined by the following steps: obtaining the concentration of markers in the liquid, and obtaining the liquid-carrying amount per unit area and the conveying speed of the sheet substrate; calculating the product of the marker concentration, the liquid-carrying amount per unit area, the conveying speed, and the first preset duration to obtain the target number of markers within the first preset duration; calculating the divisor of the preset number of markers and the target number, and rounding up to obtain the second preset duration.

[0078] The preset number of markers is the number of markers expected for the uniformity detection of a single liquid distribution.

[0079] In the embodiments of the present application, the second preset duration can be determined by the following formula (2).

[0080]

[0081] In formula (2), T2 represents the second preset duration, T1 represents the first preset duration, P1 represents the marker concentration, Q1 represents the liquid-carrying amount per unit area, P2 represents the preset number of markers, and V represents the conveying speed. represents rounding up.

[0082] Still taking Figure 3a or Figure 3b as an example for illustration. The second preset duration includes 3 first preset durations. The on-line detection device detects the markers on the sheet substrate 3 times within the second preset duration, and then calculates the parameters of the markers for these 3 detections for each detection area to obtain the marker parameters within the detection area, that is, obtaining the marker parameter 1 within detection area 1, the marker parameter 2 within detection area 2, and the marker parameter 3 within detection area 3.

[0083] In the above step S103, the on-line detection device can compare the marker parameters in multiple detection areas to determine the uniformity of the liquid distribution.

[0084] In the embodiment of the present application, the on-line detection device can detect the markers on the sheet-like substrate corresponding to each detection area within a preset step length to obtain the marker parameters corresponding to each detection area; compare the marker parameters corresponding to multiple detection areas to obtain the uniformity result of the liquid distribution.

[0085] In some embodiments, the on-line detection device can compare the marker parameters in multiple detection areas; if there is a detection area where the difference between the marker parameters and the marker parameters of other detection areas is greater than the first preset parameter threshold, it is determined that the liquid distribution is uneven; if there is no detection area where the difference between the marker parameters and the marker parameters of other detection areas is greater than the first preset parameter threshold, it is determined that the liquid distribution is uniform. The first preset parameter threshold can be set according to actual needs.

[0086] Still taking Figure 3a or Figure 3b as an example for illustration. If the difference between marker parameter 1 and marker parameter 2 is greater than the first preset parameter threshold, the difference between marker parameter 1 and marker parameter 3 is greater than the first preset parameter threshold, and the difference between marker parameter 2 and marker parameter 3 is less than the first preset parameter threshold, it is determined that the liquid distribution is uneven. If the difference between marker parameter 1 and marker parameter 2 is less than the first preset parameter threshold, the difference between marker parameter 1 and marker parameter 3 is less than the first preset parameter threshold, and the difference between marker parameter 2 and marker parameter 3 is less than the first preset parameter threshold, it is determined that the liquid distribution is uniform.

[0087] In other embodiments, the on-line detection device can compare the marker parameters in multiple detection areas with the preset marker parameters respectively; if there is a detection area where the difference between the marker parameters and the preset marker parameters is greater than the first preset parameter threshold, it is determined that the liquid distribution is uneven; if there is no detection area where the difference between the marker parameters and the preset marker parameters is greater than the first preset parameter threshold, it is determined that the liquid distribution is uniform.

[0088] In the embodiment of the present application, according to the uniformity result, the on-line detection device can adjust the liquid distributed by the distribution components included in the fluid distribution device on the sheet-like substrate to achieve the purpose of uniform liquid distribution and improve the printing and dyeing quality.

[0089] In some embodiments, in order to improve the printing and dyeing quality, when it is determined that the liquid distribution is uneven, the on-line detection device can adjust the liquid volume per unit area of each detection area according to the marker parameters in multiple detection areas.

[0090] In the embodiments of the present application, the on-line detection device can be adjusted in the following two ways:

[0091] Method 1: Automatic adjustment. Specifically, the on-line detection device can obtain the first detection area that causes uneven liquid distribution; if the marker parameter corresponding to the first detection area is less than the marker parameters corresponding to other detection areas, the liquid carrying capacity per unit area of the first detection area is increased; if the marker parameter corresponding to the first detection area is greater than the marker parameters corresponding to other detection areas, the liquid carrying capacity per unit area of the first detection area is decreased.

[0092] For example, when the uniformity result indicates uneven liquid distribution, if the uniformity result indicates that the marker parameter corresponding to the first detection area is less than the marker parameters corresponding to other detection areas, the liquid distributed by the distribution component on the sheet substrate in the first detection area is increased; if the uniformity result indicates that the marker parameter corresponding to the first detection area is greater than the marker parameters corresponding to other detection areas, the liquid distributed by the distribution component on the sheet substrate in the first detection area is decreased.

[0093] The above-mentioned method of increasing the liquid carrying capacity per unit area of the first detection area can be: increasing the liquid injection flow rate to the first detection area, or reducing the nip pressure of the first detection area, or increasing the soaking time of the first detection area in the liquid, etc. The method of reducing the liquid carrying capacity per unit area of the first detection area can be: reducing the liquid injection flow rate to the first detection area, or increasing the nip pressure of the first detection area, or reducing the soaking time of the first detection area in the liquid, etc.

[0094] The specific degree of increase / decrease can be calculated by the on-line detection device through the current liquid carrying capacity, conveying speed, etc., or a preset adjustment amount can be adopted, and this is not limited.

[0095] For example, the on-line detection device can configure the corresponding relationship between the marker parameter difference and the pressure adjustment value. The on-line detection device can obtain the difference between the marker parameter of a detection area (such as the first detection area) and the preset marker parameter, that is, the target marker parameter difference, and find the pressure adjustment value corresponding to the target marker parameter difference from the pre-configured corresponding relationship between the marker parameter difference and the pressure adjustment value, and then adjust the nip pressure corresponding to the first detection area according to the found pressure adjustment value.

[0096] In the embodiments of the present application, the on-line detection device can also configure the pressure adjustment value, that is, the preset adjustment value. If the difference between the marker parameter of a detection area (such as the first detection area) and the preset marker parameter is greater than the first preset parameter threshold, then when the on-line detection device adjusts the nip pressure corresponding to the first detection area according to the preset adjustment value.

[0097] Method 2: Manual adjustment. Specifically, the online detection device outputs a prompt message carrying the marker parameters in multiple detection areas to the user terminal, so that the user terminal adjusts the liquid volume per unit area of each detection area.

[0098] In this method, the user terminal directly inputs the adjusted liquid volume per unit area to the online detection device to achieve the purpose of uniform liquid distribution.

[0099] In the embodiments of the present application, the online detection device can also adjust the liquid volume per unit area of the detection area in other ways, which is not limited herein.

[0100] In some embodiments, in order to improve the printing and dyeing quality, when determining the uniformity of liquid distribution, the online detection device can calculate the marker parameters of the entire sheet substrate based on the marker parameters in multiple detection areas; compare the marker parameters of the entire sheet substrate with the target marker parameters to obtain a comparison result, and then adjust the liquid distributed on the sheet substrate by the distribution component according to the comparison result, so that the liquid distributed on the sheet substrate reaches the expected amount.

[0101] For example, if the comparison result indicates that the difference between the marker parameters of the entire sheet substrate and the target marker parameters is greater than the second preset parameter threshold, and the marker parameters on the sheet substrate are less than the target marker parameters, then increase the liquid volume per unit area of the sheet substrate, that is, increase the liquid distributed on the entire sheet substrate; if the difference between the marker parameters of the sheet substrate and the target marker parameters is greater than the second preset parameter threshold, and the marker parameters on the sheet substrate are greater than the target marker parameters, then decrease the liquid volume per unit area of the sheet substrate, that is, decrease the liquid distributed on the entire sheet substrate. The second preset parameter threshold can be set according to actual needs. The second preset parameter threshold can be the same as or different from the above first preset parameter threshold.

[0102] In the embodiments of the present application, the online detection device can randomly select the marker parameters in one detection area as the marker parameters of the sheet substrate; it can also calculate the average value of the marker parameters in multiple detection areas as the marker parameters of the sheet substrate; it can also calculate the total value of the marker parameters in multiple detection areas as the marker parameters of the sheet substrate. This is not limited herein.

[0103] The target marker parameter is the marker parameter carried by the desired sheet substrate. The on-line detection device compares the marker parameter of the sheet substrate with the target marker parameter. If the difference between the marker parameter of the sheet substrate and the target marker parameter is greater than the second preset parameter threshold, it indicates that the marker carried by the current sheet substrate does not meet the expectation. In this case, if the marker parameter on the sheet substrate is less than the target marker parameter, it means that the sheet substrate carries too few markers, and the liquid carrying capacity per unit area of the whole sheet substrate is increased; if the marker parameter on the sheet substrate is greater than the target marker parameter, it means that the sheet substrate carries too many markers, and the liquid carrying capacity per unit area of the whole sheet substrate is decreased.

[0104] The specific degree of increase / decrease can be calculated by the on-line detection device through the current liquid carrying capacity, conveying speed, etc., or a preset adjustment amount can be adopted, and this is not limited herein.

[0105] Based on the above on-line detection method, an embodiment of the present application provides a fluid distribution device, as Figure 4 shown. The fluid distribution device includes a distribution assembly 12, an on-line detection device 13, and a conveying assembly ( Figure 4 not shown in the figure). In an embodiment of the present application, as Figure 4 shown, the fluid distribution device may further include a supply assembly 11, and the supply assembly 11 is connected to the distribution assembly 12 through a conduit (such as the liquid inlet pipe 112 described below).

[0106] The supply assembly 11 is configured to supply liquid to the distribution assembly 12, and the liquid is uniformly mixed with markers. In an embodiment of the present application, the supply assembly 11 may include a liquid cylinder 111, a driving mechanism ( Figure 4 not shown in the figure), and a liquid inlet pipe 112.

[0107] The distribution assembly 12 is configured to distribute the liquid onto the sheet substrate. In an embodiment of the present application, the distribution assembly 12 may include a roll mechanism 121 and a distribution mechanism 122; the liquid cylinder 111 is connected to the distribution mechanism 122 through the liquid inlet pipe 112, and the driving mechanism acts on the liquid cylinder 111.

[0108] The conveying assembly is configured to convey the sheet substrate in a specified direction, and the conveyed sheet substrate passes through the area where the liquid is distributed by the distribution assembly and the area where the on-line detection device 13 detects the markers.

[0109] The driving mechanism is used to drive the liquid in the liquid cylinder 111 to enter the distribution mechanism 122 through the liquid inlet pipe 112;

[0110] The distribution mechanism 122 is used to spray the liquid onto the surface of the sheet substrate 14 within the spraying range of the distribution mechanism 122;

[0111] The roll mechanism 121 is located on the side of the distribution mechanism 122 away from the feed inlet. The roll mechanism 121 includes two rolls 1211 and a first control mechanism 1212, and the first control mechanism 1212 is electrically connected to the roll mechanism 1212. The first control mechanism 1212 is used to control the two rolls 1211 to roll against each other according to the specified rolling pressure, so as to uniformly press the liquid sprayed on the surface of the sheet substrate 14 into the interior of the sheet substrate 14.

[0112] The on-line detection device 13 is located on the side of the roll mechanism 121 away from the feed inlet. During the transportation of the sheet substrate 14, the on-line detection device 13 detects the markers on the sheet substrate 14 within the detection range of the on-line detection device 13, and obtains the uniformity detection result of the markers, that is, the uniformity result of the liquid distribution.

[0113] In the technical solution provided by the embodiment of the present application, an on-line detection device is installed on the fluid distribution device, and a marker that can be recognized by the on-line detection device is mixed in the liquid. During the transportation of the sheet substrate by the fluid distribution device, the on-line detection device can automatically detect the markers on the sheet substrate on the production line in real time, obtain the distribution of the markers, and then obtain the uniformity result of the liquid distribution. The fluid distribution device can use the uniformity result to adjust the liquid distribution of the printed sheet substrate, ensuring the uniform dyeing of the printed sheet substrate. In the embodiment of the present application, based on the markers, the dyeing uniformity is automatically detected during the printing process of the sheet substrate, without manual participation, saving manpower and time, reducing the detection error caused by human factors, improving the stability and reliability of the uniformity detection result, and improving the printing efficiency of the sheet substrate. In addition, during the printing process of the sheet substrate, the dyeing uniformity is automatically detected, and there is no need to prepare additional sheet substrates to detect the dyeing uniformity, reducing the material cost. It can be seen that the embodiment of the present application improves the rate of uniformity evaluation and the stability and reliability of the uniformity detection result.

[0114] In the embodiment of the present application, the marker is a substance with optical properties such as absorption, emission or scattering, or chemical properties, and has an identification function, and this substance can be recognized by the on-line detection device.

[0115] Since the fluid distribution device has the above-mentioned beneficial effects, as a digital fluid distribution device, the fluid distribution device can be widely used in various fields for printing sheet substrates to meet personalized needs. For example, it can be used in the textile field for textile design and printing, and can also be used in the medical field for dyeing medical fabrics, and is also used in the home decoration field for dyeing curtains, bedding, etc.

[0116] The following will detail each component included in the fluid distribution device provided by the embodiment of the present application.

[0117] (1) Supply component 11.

[0118] The supply component 11 includes a liquid cylinder 111, a driving mechanism, and a liquid inlet pipe 112.

[0119] The liquid cylinder 111 contains liquid, and a marker is uniformly mixed in the liquid. In the embodiments of the present application, to ensure that the marker is uniformly mixed in the liquid, the supply component 11 may further include a marker distribution mechanism ( Figure 1 not shown in the figure). The marker distribution mechanism is installed on the liquid cylinder 111 and is used to uniformly distribute the marker in the liquid. For example, the marker distribution mechanism may adopt mixing methods such as spraying, drop coating, or stirring to uniformly distribute the marker in the liquid.

[0120] The structure of the marker distribution mechanism is adapted to the mixing method it adopts. For example, if the marker distribution mechanism adopts a stirring mixing method, the marker distribution mechanism may adopt a rotating structure, that is, the marker distribution mechanism is installed on the liquid cylinder 111 to control the rotation of the liquid cylinder 111; the marker distribution mechanism may adopt a stirring rod structure, that is, the marker distribution mechanism is installed on the liquid cylinder 111, and the stirring rod extends into the liquid and stirs the liquid.

[0121] In the embodiments of the present application, the supply component 11 may further include a second control mechanism ( Figure 4 not shown in the figure); a mixing ratio of the marker and the liquid without added marker is configured in the second control mechanism, and this mixing ratio can be set according to actual needs. The second control mechanism is used to pour the marker and the liquid without added marker into the liquid cylinder according to the configured mixing ratio, so as to obtain a liquid with the marker uniformly mixed therein.

[0122] In some embodiments, to facilitate the automatic control and unified coordination processing of the fluid distribution device, the fluid distribution device may further include a control component 15. The control component 15 is communicatively connected to the second control mechanism. The control component 15 can be used to configure the mixing ratio of the marker and the liquid without added marker, and send the information indicating the mixing ratio to the second control mechanism. Then, the second control mechanism pours the marker and the liquid without added marker into the liquid cylinder according to the mixing ratio indicated by the information, and obtains a liquid with the marker uniformly mixed therein.

[0123] In the embodiments of the present application, the driving mechanism may be implemented by a driving pump or other driving devices, and this is not limited. The driving mechanism acts on the liquid cylinder 111 and can be installed inside the liquid cylinder 111 or outside the liquid cylinder 111, as long as it can drive the liquid in the liquid cylinder 11 to enter the distribution mechanism 122 through the liquid inlet pipe 112.

[0124] (2) Distribution component 12.

[0125] The distribution component 12 includes a roll mechanism 121 and a distribution mechanism 122. In the embodiment of the present application, the roll mechanism 121 of the distribution component 12 can also be omitted, and this is not limited.

[0126] The sheet-shaped substrate 14 is continuously fed into the fluid distribution device from the feed port, and during the conveyance of the sheet-shaped substrate 14, there is continuously a sheet-shaped substrate 14 passing through the liquid distribution area of the distribution component 12. The sheet-shaped substrate 14 can be a material to be dyed such as cloth, wood board or metal board. During the conveyance of the sheet-shaped substrate 14, the sheet-shaped substrate 14 passes through the distribution mechanism 122 and the roll mechanism 121.

[0127] The distribution mechanism 122 has a certain distribution range (i.e., the liquid distribution area). The distribution mechanism 122 can be a spraying mechanism or a dyeing liquid pool, and this is not limited. When the sheet-shaped substrate 14 passes through the distribution mechanism 122, the distribution mechanism 122 distributes the liquid onto the sheet-shaped substrate 14 within the distribution range of the distribution mechanism 122. When the sheet-shaped substrate 14 passes through the roll mechanism 121, the roll mechanism 121 evenly presses the liquid distributed on the sheet-shaped substrate into the interior of the sheet-shaped substrate, so as to realize printing the liquid onto the sheet-shaped substrate to obtain the required sheet-shaped substrate, that is, the dyed sheet-shaped substrate.

[0128] In the embodiment of the present application, the distribution component 12 can include one or more roll mechanisms 121, such as Figure 4 As shown, the distribution component 12 includes two roll mechanisms 121. These two roll mechanisms 121 are located on the side of the distribution mechanism 122 away from the feed port. In the embodiment of the present application, the distribution component 12 can also include one or more auxiliary mechanisms 123, such as Figure 5 As shown, the auxiliary mechanism 123 is located on the side of the distribution mechanism 122 close to the feed port. The auxiliary mechanism 123 is implemented by adopting the same structure as the roll mechanism 121, and can be used to assist the roll mechanism 123 in printing the liquid onto the sheet-shaped substrate 14 and in conveying the sheet-shaped substrate.

[0129] For example, the auxiliary roll mechanism 123 includes two rolls 1231 and a third control mechanism 1232. The third control mechanism 1232 is used to control the two rolls 1231 to roll while squeezing each other according to a specified calendar pressure. Under the interaction of the roll 1231 and the roll 1211, the sheet-shaped substrate 14 can be conveyed along the conveying direction (i.e., the specified direction), and the sheet-shaped substrate 14 can be ensured to be in a flat state to ensure the uniformity of dyeing. The specified direction is the direction from the feed port to the discharge port.

[0130] In the embodiments of the present application, the feed inlet may be lower than the discharge outlet, may be higher than the discharge outlet, or may be at the same level as the discharge outlet, and no limitation is imposed thereon. In one example, the feed inlet is lower than the discharge outlet. In this case, the liquid sprayed by the distribution mechanism 122 onto the surface of the sheet substrate 14 flows back to the two rollers 1231, and liquid accumulates at the two rollers 1231. As the two rollers 1231 roll while pressing against each other, the accumulated liquid is evenly pressed into the interior of the sheet substrate 14, improving the printing and dyeing effect of the sheet substrate.

[0131] In some embodiments, for the convenience of automatic control and unified coordination of the fluid distribution device, the fluid distribution device may further include a control component 15. The control component 15 is communicatively connected to the first control mechanism 1212. The control component 15 can be used to send information indicating the calender pressure to the first control mechanism 1212. The first control mechanism 1212 converts the information indicating the calender pressure into a corresponding electrical signal, outputs a corresponding voltage, and then controls the two rollers 1211 to roll while pressing against each other according to the calender pressure indicated by the information.

[0132] (3) The on-line detection device 13.

[0133] The on-line detection device 13 is located on the side of the distribution assembly 12 away from the feed inlet. During the conveyance of the sheet substrate 14, after the sheet substrate 14 passes through the distribution mechanism 122 and the roller mechanism 121, it also passes through the on-line detection device 13. The liquid distributed by the distribution mechanism 122 contains markers, so the printed and dyed sheet substrate 14 will also contain markers. For the sheet substrate 14 within the detection range of the on-line detection device 13, the on-line detection device 13 detects the markers on the sheet substrate 14 to obtain the uniformity detection result of the markers.

[0134] In the embodiments of the present application, for the convenience of maintaining the on-line detection device 13, the on-line detection device 13 may include an on-line detection component and a control unit. The on-line detection component is arranged in the area through which the sheet substrate passes; it is configured to detect the markers on the sheet substrate within the detection range of the on-line detection component during the conveyance of the sheet substrate; and the control unit, which is communicatively connected to the on-line detection component, is configured to judge the uniformity of the liquid distribution on the sheet substrate based on the detection result of the on-line detection component. Here, the control unit may be integrated on the control component 15 for the convenience of automatic control and unified coordination of the fluid distribution device.

[0135] The on-line detection device 13 detects the markers on the surface of the sheet substrate 14, analyzes the distribution of the markers, and judges whether the dyeing is uniform, that is, evaluates the uniformity of the dyeing, that is, the distribution of the markers reflects the uniformity of the dyeing. For the specific detection method, reference may be made to the on-line detection method described in the above Figure 1 part, and details are not described herein again.

[0136] To identify the markers, corresponding sensors can be configured on the on-line detection component to identify the markers on the sheet substrate 14 using the sensors. For example, if the markers have certain optical properties, an optical sensor or an infrared sensor can be configured on the on-line detection component; if the markers have certain chemical properties, a chemical sensor can be configured on the on-line detection component.

[0137] In the embodiment of the present application, only one sensor can be configured on the on-line detection component, such as only an optical sensor. In this way, the cost of the on-line detection component can be effectively reduced, and the cost of the fluid distribution device can be reduced. Multiple sensors can also be configured on the on-line detection component, such as an optical sensor, an infrared sensor, and a chemical sensor. In this way, the uniformity detection result of the markers can be obtained comprehensively through multiple sensors, improving the accuracy of the dyeing uniformity detection result.

[0138] Among them, the uniformity detection result indicates the distribution of the markers on the surface of the sheet substrate 14, such as represented by the number or proportion of the markers. The on-line detection device detects the markers on the surface of the sheet substrate 14 and analyzes the distribution of the markers to determine whether the dyeing is uniform, that is, to evaluate the uniformity of the dyeing. That is, the distribution of the markers reflects the uniformity of the dyeing.

[0139] In the embodiment of the present application, the on-line detection device 13 is installed on the fluid distribution device, and the uniformity of the dyeing can be detected in time during the printing and dyeing process of the sheet substrate, avoiding quality problems caused by uneven dyeing. In addition, during the printing and dyeing process of the sheet substrate, the uniformity of the dyeing is detected in real time, and based on the uniformity detection result, the problem of uneven dyeing can be found in time, and then the printing and dyeing parameters, such as the above-mentioned calendar roll pressure, etc., can be adjusted in time to ensure the uniformity of the dyeing, improving the printing and dyeing effect of the sheet substrate and improving the quality and consistency of the product.

[0140] In the embodiment of the present application, the on-line detection device 13 can be directly communicatively connected to the supply component 11 and the distribution component 12, and the on-line detection device 13 controls the supply component 11 and the distribution component 12 through the communication connection. For example, the on-line detection device 13 can adjust the calendar roll pressure based on the uniformity detection result and send the information indicating the adjusted calendar roll pressure to the first control mechanism in the distribution component 12. For another example, the on-line detection device 13 can send the information indicating the mixing ratio to the second control mechanism in the supply component 11.

[0141] In some embodiments, for the convenience of automatic control and unified coordinated processing of the fluid distribution device, to reduce the burden on the on-line detection device 13 and improve the detection efficiency of the on-line detection device 13, the fluid distribution device may further include a control component 15. The control component 15 is communicatively connected to the on-line detection device 13 and the distribution component 12 (such as the first control mechanism 1212) respectively. That is, the above control unit is integrated on the control component 15.

[0142] In this case, the on-line detection component sends the detected uniformity detection result to the control component 15. The control component 15 adjusts the liquid distributed by the distribution component 12 on the sheet substrate according to the uniformity detection result. For example, the control component 15 sends the information indicating the adjusted calendar pressure to the first control mechanism 1212.

[0143] The specific detection process is as follows: The on-line detection component divides the detection range into multiple detection areas; detects the markers on the sheet substrate corresponding to each detection area within a preset step length to obtain the marker parameters corresponding to each detection area; compares the marker parameters corresponding to the multiple detection areas to obtain the uniformity result of the liquid distribution.

[0144] When the uniformity result indicates that the liquid distribution is uneven, if the uniformity result indicates that the marker parameter corresponding to the first detection area is less than the marker parameters corresponding to other detection areas, the control component 15 increases the liquid distributed by the distribution component on the sheet substrate in the first detection area; if the uniformity result indicates that the marker parameter corresponding to the first detection area is greater than the marker parameters corresponding to other detection areas, the control component 15 decreases the liquid distributed by the distribution component on the sheet substrate in the first detection area.

[0145] In addition, the on-line detection component compares the marker parameters of the entire sheet substrate with the target marker parameters to obtain a comparison result, and sends the comparison result to the control component; the control component 15 adjusts the liquid distributed by the distribution component on the sheet substrate according to the comparison result.

[0146] The specific detection process is as follows: When the comparison result indicates that the difference between the marker parameters of the entire sheet substrate and the target marker parameters is greater than the preset parameter threshold, if the marker parameters on the sheet substrate are less than the target marker parameters, the control component 15 increases the liquid distributed by the distribution component on the entire sheet substrate; if the marker parameters on the sheet substrate are greater than the target marker parameters, the control component 15 decreases the liquid distributed by the distribution component on the entire sheet substrate.

[0147] In addition, the control component 15 is communicatively connected to the second control mechanism. The control component 15 configures the mixing ratio of the marker and the liquid without the marker, and sends the information indicating the mixing ratio to the second control mechanism. Then, the second control mechanism pours the marker and the liquid without the marker into the liquid cylinder 111 according to the mixing ratio indicated by the information, and obtains the liquid with the marker uniformly mixed therein.

[0148] (4) Conveying component.

[0149] The conveying component conveys the sheet substrate along a specified direction, and the conveyed sheet substrate passes through the liquid distribution area of the distribution component 12 and the area where the marker is detected by the on-line detection device 13.

[0150] In the embodiments of the present application, the conveying component can be implemented in the following two structures:

[0151] Structure 1: The conveying component includes a transmission sub-component and a driving sub-component; the surface of the transmission sub-component is a plane, and the sheet substrate is placed on the surface of the transmission sub-component; the driving sub-component is arranged at both ends of the transmission sub-component and is configured to drive the transmission sub-component to move along a specified direction, and the transmission sub-component drives the sheet substrate to move along the specified direction. In order to ensure that the transmission sub-component drives the sheet substrate to move, the surface roughness of the transmission sub-component is greater than a preset roughness. The preset roughness can be set according to actual requirements. In some embodiments, the surface material of the transmission sub-component can be rubber, plastic or other materials to reduce the equipment cost.

[0152] Structure 1 can be a conveyor belt or a guide belt. At this time, the sheet substrate can be placed on the conveyor belt or the guide belt, and the conveyor belt drives the sheet substrate to move along the specified conveying direction.

[0153] Structure 2: The conveying component includes two roller mechanisms; each roller mechanism includes two rollers, the sheet substrate passes through between the two rollers included in each roller mechanism, and the two rollers included in each roller mechanism roll by mutual extrusion to drive the sheet substrate to move along a specified direction. For example, Figure 5 the roller mechanism 121 and the auxiliary roller mechanism 123 in form the conveying component. Here, the roller mechanism 121 can also be a part of the distribution component 12.

[0154] In the embodiments of the present application, the conveying component can also be implemented in a manner as long as the sheet substrate can be moved along the specified conveying direction.

[0155] Corresponding to the above on-line detection method, the embodiments of the present application also provide an on-line detection device for detecting the sheet substrate with the liquid distributed thereon, including:

[0156] A conveying component configured to convey the sheet substrate along a specified direction; wherein, the liquid distributed on the sheet substrate is uniformly mixed with a marker;

[0157] An on-line detection component is arranged in the area through which the sheet substrate passes; and is configured to detect a marker on the sheet substrate within the detection range of the on-line detection component during the conveyance of the sheet substrate.

[0158] And a control unit, which is communicatively connected to the on-line detection component and is configured to judge the uniformity of the liquid distribution on the sheet substrate based on the detection result of the on-line detection component.

[0159] In the technical solution provided by the embodiment of the present application, a marker recognizable by the on-line detection component is mixed into the liquid. During the conveyance of the sheet substrate, the on-line detection component can automatically detect the marker on the sheet substrate on the production line in real time, obtain the distribution of the marker, and further obtain the result of the uniformity of the liquid distribution. The fluid distribution device can utilize the uniformity result to adjust the liquid distribution of the printed sheet substrate, ensuring uniform dyeing of the printed sheet substrate. In the embodiment of the present application, based on the marker, the dyeing uniformity is automatically detected during the printing process of the sheet substrate without manual participation, saving manpower and time, reducing the detection error caused by human factors, improving the stability and reliability of the uniformity detection result, and improving the printing efficiency of the sheet substrate. In addition, during the printing process of the sheet substrate, the dyeing uniformity is automatically detected without additionally preparing a sheet substrate to detect the dyeing uniformity, reducing the material cost. It can be seen that the embodiment of the present application improves the rate of uniformity evaluation and improves the stability and reliability of the uniformity detection result.

[0160] In some embodiments, the on-line detection component is configured with an optical sensor, an infrared sensor, and / or a chemical sensor.

[0161] In some embodiments, the conveying component includes a transmission sub-component and a driving sub-component;

[0162] The surface of the transmission sub-component is a plane, and the sheet substrate is placed on the surface of the transmission sub-component;

[0163] The driving sub-component is arranged at both ends of the transmission sub-component and is configured to drive the transmission sub-component to move in a specified direction, and the transmission sub-component drives the sheet substrate to move in the specified direction.

[0164] In some embodiments, the surface roughness of the transmission sub-component is greater than a preset roughness.

[0165] In some embodiments, the surface material of the transmission sub-component is rubber.

[0166] In some embodiments, the conveying component includes two roller mechanisms; each roller mechanism includes two rollers, the sheet substrate passes through between the two rollers included in each roller mechanism, and the two rollers included in each roller mechanism roll while squeezing each other to drive the sheet substrate to move in a specified direction.

[0167] In some embodiments, the marker is a fluorescent dye or a nano-pigment.

[0168] In the embodiments of the present application, the descriptions of the various components are relatively simple. For specific details, reference can be made to the relevant descriptions in the above-mentioned online detection method and fluid distribution device sections, which will not be elaborated here.

[0169] Corresponding to the above online detection method, an embodiment of the present application also provides an online detection device, as Figure 6 shown, the device includes:

[0170] A detection module 61, configured to detect the markers on the sheet substrate in a plurality of detection regions at every first preset time interval during the transportation of the sheet substrate, wherein the liquid distributed on the sheet substrate contains the markers;

[0171] A calculation module 62, configured to calculate the marker parameters on the sheet substrate in a plurality of detection regions within a second preset time period, where the second preset time period includes one or more first preset time intervals;

[0172] A first determination module 63, configured to determine the uniformity of the liquid distribution according to the marker parameters in a plurality of detection regions.

[0173] In some embodiments, the above online detection device may further include a second determination module, configured to determine the first preset time interval, specifically:

[0174] Obtain the transportation speed of the sheet substrate;

[0175] Obtain the detection length for performing one marker detection;

[0176] Calculate the quotient of the detection length and the transportation speed to obtain the first preset time interval.

[0177] In some embodiments, the above online detection device may further include a third determination module, configured to determine the second preset time interval, specifically:

[0178] Obtain the marker concentration in the liquid, and obtain the liquid carrying capacity per unit area and the transportation speed of the sheet substrate;

[0179] Calculate the product of the marker concentration, the liquid carrying capacity per unit area, the transportation speed, and the first preset time interval to obtain the target number of markers within the first preset time interval;

[0180] Calculate the quotient of the preset number of markers and the target number, and round up to obtain the second preset time interval.

[0181] In some embodiments, the detection module 61 is specifically configured to:

[0182] Collect an image of a sheet-shaped substrate; perform an optical property detection on the image to obtain markers on the sheet-shaped substrate in multiple detection regions.

[0183] In some embodiments, the optical properties include visible light properties and / or infrared properties.

[0184] In some embodiments, the detection module 61 is specifically configured to:

[0185] Detect the chemical properties of the sheet-shaped substrate in multiple detection regions to obtain markers on the sheet-shaped substrate in multiple detection regions.

[0186] In some embodiments, the chemical properties include radiation properties.

[0187] In some embodiments, the first determination module 63 is specifically configured to:

[0188] Compare the marker parameters in multiple detection regions;

[0189] If there is a detection region where the difference between the marker parameters and the marker parameters of other detection regions is greater than the first preset parameter threshold, determine that the liquid distribution is uneven;

[0190] If there is no detection region where the difference between the marker parameters and the marker parameters of other detection regions is greater than the first preset parameter threshold, determine that the liquid distribution is uniform.

[0191] In some embodiments, the above online detection device may further include:

[0192] A first adjustment module, configured to adjust the liquid volume per unit area of each detection region according to the marker parameters in multiple detection regions when it is determined that the liquid distribution is uneven.

[0193] In some embodiments, the first adjustment module is specifically configured to:

[0194] Output a prompt message carrying the marker parameters in multiple detection regions to the user terminal so that the user terminal adjusts the liquid volume per unit area of each detection region.

[0195] In some embodiments, the first adjustment module is specifically configured to:

[0196] If the marker parameters corresponding to the first detection region are less than the marker parameters corresponding to other detection regions, increase the liquid volume per unit area of the first detection region;

[0197] If the marker parameters corresponding to the first detection region are greater than the marker parameters corresponding to other detection regions, decrease the liquid volume per unit area of the first detection region.

[0198] In some embodiments, the above online detection device may further include:

[0199] A second adjustment module, configured to calculate the marker parameters of the sheet substrate according to the marker parameters in multiple detection regions when determining the uniformity of liquid distribution; if the difference between the marker parameters of the sheet substrate and the target marker parameters is greater than a second preset parameter threshold, and the marker parameters on the sheet substrate are less than the target marker parameters, then increase the liquid volume per unit area of the sheet substrate; if the difference between the marker parameters of the sheet substrate and the target marker parameters is greater than a second preset parameter threshold, and the marker parameters on the sheet substrate are greater than the target marker parameters, then decrease the liquid volume per unit area of the sheet substrate.

[0200] In some embodiments, the marker is a fluorescent dye or a nano pigment.

[0201] In the technical solution provided by the embodiments of the present application, during the transportation of the sheet substrate, every first preset time interval, the markers on the sheet substrate in multiple detection regions are detected, and the marker parameters of the sheet substrate in the multiple detection regions within the second preset time are calculated. By comparing the marker parameters in the multiple detection regions, the uniformity of liquid distribution is determined. In the embodiments of the present application, the liquid is mixed with markers, and the uniformity of liquid distribution can represent the dyeing uniformity. Using the marker parameters, during the transportation of the sheet substrate in actual production, the uniformity of liquid distribution is determined in real time and automatically, without manual participation, saving manpower and time, reducing the detection error caused by human factors, improving the stability and reliability of the uniformity detection result, and improving the printing and dyeing efficiency. In addition, in the embodiments of the present application, during the transportation of the sheet substrate in actual production, the uniformity of liquid distribution is automatically detected, and there is no need to prepare additional substrates to detect the dyeing uniformity, reducing the material cost. It can be seen that the embodiments of the present application improve the rate of uniformity evaluation and improve the stability and reliability of the uniformity detection result.

[0202] The embodiments of the present application also provide an on-line detection device, such as Figure 7 shown. The on-line detection device includes a processor 71 and a memory 72; the memory 72 is used for storing a computer program; the processor 71 is configured to implement the on-line detection method described in any one of the above when executing the program stored in the memory 72.

[0203] In some embodiments, the on-line detection device may further include a communication interface 73 and a communication bus 74. Among them, the processor 71, the communication interface 73 and the memory 72 complete mutual communication through the communication bus 74.

[0204] The communication bus can be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For the sake of simplicity, only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus.

[0205] The communication interface is used for communication between the above-mentioned online detection device and other devices.

[0206] The memory can include a Random Access Memory (RAM), and can also include a Non-Volatile Memory (NVM), such as at least one disk memory. Optionally, the memory can also be at least one storage device located far from the aforementioned processor.

[0207] The processor can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), etc.; it can also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0208] In another embodiment provided by the present application, there is also provided a computer-readable storage medium, in which a computer program is stored, and when the computer program is executed by a processor, the above-mentioned online detection method is implemented.

[0209] In another embodiment provided by the present application, there is also provided a computer program product containing instructions, which when running on a computer, causes the computer to execute the above-mentioned online detection method.

[0210] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, hard disk, magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

[0211] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0212] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other, and the differences between each embodiment and other embodiments are emphasized. In particular, for the device, fluid distribution device, on-line detection device, storage medium, and program product embodiments, since they are basically similar to the on-line detection device embodiment, the description is relatively simple, and the relevant parts can be referred to the description of the method embodiment.

[0213] The foregoing are only the preferred embodiments of the present application and are not intended to limit the protection scope of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application are all included in the protection scope of the present application.

Claims

1. An online detection device, characterized in that: Sheet substrate for detecting distributed liquids, comprising: A conveying component is configured to convey the sheet-like substrate in a specified direction; wherein the marker is uniformly mixed in the liquid distributed on the sheet-like substrate; An online detection component is disposed in an area where the sheet substrate passes; and is configured to detect the marker on the sheet substrate within the detection range of the online detection component during the conveyance of the sheet substrate; and a control unit, which is in communication connection with the online detection component and is configured to determine the uniformity of liquid distribution on the sheet-like substrate based on the detection result of the online detection component.

2. The online detection device according to claim 1, characterized in that: The online detection component is configured with an optical sensor, an infrared sensor and / or a chemical sensor.

3. The online detection device according to claim 1, characterized in that: The conveying assembly includes a transmission subassembly and a driving subassembly; The surface of the transmission subassembly is a plane, and the sheet-like substrate is placed on the surface of the transmission subassembly; The driving subassembly is disposed at both ends of the transmission subassembly and is configured to drive the transmission subassembly to move along a specified direction, and the transmission subassembly drives the sheet-like substrate to move along the specified direction.

4. The online detection device according to claim 3, characterized in that: The surface roughness of the transmission subassembly is greater than a preset roughness.

5. The online detection device according to claim 3, characterized in that: The surface material of the transmission subassembly is rubber.

6. The online detection device according to claim 1, characterized in that: The conveying assembly includes two roller mechanisms; each roller mechanism includes two rollers, and the sheet substrate passes between the two rollers included in each roller mechanism. The two rollers included in each roller mechanism squeeze and roll each other to drive the sheet substrate to move along a specified direction.

7. The online detection device according to any one of claims 1 to 6, characterized in that: The marker is a fluorescent dye or a nano pigment.

8. A fluid distribution device with online detection function, characterized in that: It comprises a distribution component, an online detection device and a conveying component as described in any one of claims 1 to 7; The distribution component is configured to distribute the liquid on the sheet-like substrate; wherein the liquid is uniformly mixed with a marker; The conveying assembly is configured to convey the sheet-like substrate along a specified direction, and the conveyed sheet-like substrate passes through the liquid distribution area of ​​the distribution assembly and the area where the online detection device detects the marker; The online detection device is configured to detect the marker on the sheet substrate within the detection range of the online detection device during the sheet substrate conveying process to obtain a uniformity result of liquid distribution.

9. The fluid distribution device according to claim 8, characterized in that The online detection device comprises: An online detection component is disposed in an area where the sheet substrate passes; and is configured to detect the marker on the sheet substrate within the detection range of the online detection component during the conveyance of the sheet substrate; and a control unit, which is in communication connection with the online detection component and is configured to determine the uniformity of liquid distribution on the sheet-like substrate based on the detection result of the online detection component.

10. The fluid distribution device according to claim 9, characterized in that The online detection component is configured with an optical sensor, an infrared sensor and / or a chemical sensor.

11. The fluid distribution device according to claim 8, characterized in that The fluid distribution device further comprises a supply assembly; the supply assembly is connected to the distribution assembly via a conduit; The supply component is configured to provide liquid to the distribution component.

12. The fluid distribution device according to claim 11, characterized in that The supply assembly also includes a marker distribution mechanism; The marker distribution mechanism is configured to evenly distribute the marker in the liquid.

13. The fluid distribution device according to any one of claims 8 to 12, characterized in that: The fluid distribution device further comprises a control assembly, the distribution assembly further comprises a roller mechanism and a first control mechanism, the control assembly is in communication connection with the first control mechanism, and the first control mechanism is electrically connected with the roller mechanism; The roller mechanism includes two rollers, and the first control mechanism controls the two rollers to squeeze and roll against each other according to a specified roller pressure, so that the liquid on the sheet substrate is evenly distributed; The control assembly sends information indicative of rolling mill pressure to the first control mechanism.

14. The fluid distribution device according to any one of claims 8 to 12, characterized in that: The marker is a fluorescent dye or a nano pigment.

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