Dot coating coverage rate detection system

Abstract

The utility model provides a point coating coverage rate detection system, and belongs to the technical field of diaphragm point coating detection. The spot coating coverage rate detection system comprises a slide way, a limiting module, a signal acquisition module, a signal processing module, a signal receiving module, a control module and a distance adjusting module, the limiting modules are fixed at two ends of the slideway; the signal acquisition module is connected with the signal processing module, and the signal acquisition module is configured to move on the slideway and acquire dispensing coverage data of the diaphragm; the signal processing module is connected with the signal receiving module, and the signal processing module is configured to process dispensing coverage data of the diaphragm and send the dispensing coverage data to the signal receiving module; the signal receiving module is connected with the control module, the control module is connected with the distance adjusting module, and the distance adjusting module is used for being connected with dispensing equipment. The distance between the plate roller and the back roller of the dispensing equipment can be adjusted in real time according to the dispensing coverage rate result, and the manual detection cost is reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of septum point coating detection, and particularly relates to a point coating coverage detection system. BACKGROUND

[0002] With the rapid development of the battery industry, the coating technology of lithium battery separators has become more and more diversified. In addition to traditional roll coating and spraying technology, new separator coating methods such as extrusion coating have also appeared. On the basis of these coating technologies, new coating technologies have been derived, such as edge spraying, edge blank, zebra stripe coating technology and point coating technology. For point coating technology, it is essential to test its coverage. The existing point coating coverage detection equipment cannot realize real-time and accurate adjustment of the point coating layer coating, which affects product production. CONTENT OF THE UTILITY MODEL

[0003] The embodiment of the present disclosure provides a point coating coverage detection system to solve the problem that the existing equipment cannot realize real-time and accurate adjustment of the point coating layer coating.

[0004] The embodiment of the present disclosure provides a point coating coverage detection system, which comprises:

[0005] The slide, the limiting module, the signal acquisition module, the signal processing module, the signal receiving module, the control module and the distance adjusting module; the limiting module is fixed at both ends of the slide;

[0006] The signal acquisition module is connected with the signal processing module, and the signal acquisition module is configured to move on the slide and collect point coating coverage data of the septum;

[0007] The signal processing module is connected with the signal receiving module, and the signal processing module is configured to process the point coating coverage data of the septum and send it to the signal receiving module;

[0008] The signal receiving module is connected with the control module, and the control module is connected with the distance adjusting module, and the distance adjusting module is used to be connected with the point coating equipment.

[0009] In an exemplary embodiment of the present disclosure, the signal acquisition module comprises:

[0010] The light signal receiving unit, the light signal processing unit;

[0011] The light signal receiving unit is connected with the light signal processing unit, and the light signal processing unit is connected with the signal processing module;

[0012] The light signal receiving unit is configured to receive the light signal reflected by the detected septum, and the light signal processing unit is configured to convert the light signal into an electrical signal.

[0013] In an example embodiment of the present disclosure, the signal processing module comprises:

[0014] a signal preprocessing unit, an analog-to-digital conversion unit, and an encoding unit.

[0015] The signal preprocessing unit is connected to the optical signal processing unit, the signal preprocessing unit is connected to the analog-to-digital conversion unit, the analog-to-digital conversion unit is connected to the encoding unit, and the encoding unit is connected to the signal receiving module.

[0016] In an example embodiment of the present disclosure, a point coating coverage detection system further comprises:

[0017] An automatic lifting module;

[0018] The automatic lifting module is arranged at both ends of the bottom of the slide, and the automatic lifting module is connected to the control module; the automatic lifting module is configured to adjust the distance between the signal acquisition module and the detected diaphragm.

[0019] In an example embodiment of the present disclosure, a point coating coverage detection system further comprises:

[0020] A fixing bolt;

[0021] The fixing bolt is arranged on the slide and is configured to fix the signal acquisition module.

[0022] In an example embodiment of the present disclosure, the point coating coverage detection system further comprises:

[0023] A communication module;

[0024] The communication module is connected to the control module, and the communication module is further used to connect to an external monitoring terminal.

[0025] The point coating coverage detection system provided by the embodiments of the present disclosure has the following beneficial effects:

[0026] Firstly, the present disclosure realizes comprehensive and accurate detection of different positions of the diaphragm through the cooperation of the slide and the signal acquisition module. The signal acquisition module moves on the slide and can capture the subtle differences of the point coating area on the surface of the diaphragm, which provides strong support for accurate evaluation of the point coating coverage. This not only improves the accuracy and reliability of the detection, but also effectively avoids quality problems caused by incomplete detection.

[0027] Secondly, the present disclosure realizes the automatic adjustment of the point coating equipment through intelligent control. When the point coating coverage is detected to be substandard, the control module can quickly respond and adjust the distance between the plate roller and the back roller through the distance adjustment module, thereby optimizing the subsequent point coating operation. As can be seen, the present disclosure can not only improve production efficiency, but also reduce the cost of manual intervention. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Figure 1 is a structural schematic diagram of a point coating coverage detection system provided by an embodiment of the present disclosure;

[0030] Figure 2 is a structural schematic diagram of a point coating coverage detection system provided by another embodiment of the present disclosure;

[0031] Figure 3 is an application scenario schematic diagram of a point coating coverage detection system provided by an embodiment of the present disclosure;

[0032] Figure 4 is a structural schematic diagram of a point coating coverage detection system provided by still another embodiment of the present disclosure. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the present scheme, the technical solutions in the embodiments of the present scheme will be clearly described below in combination with the drawings in the embodiments of the present scheme. Obviously, the described embodiments are only some of the embodiments of the present scheme, not all. Based on the embodiments in the present scheme, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present scheme.

[0034] The terms "include", and other any variants thereof, in the specification and claims of the present scheme and the above-mentioned drawings, refer to "include but not limited to", and are intended to cover non-exclusive inclusion, and are not limited to the examples listed in the text. In addition, the terms "first" and "second" and the like are used to distinguish different objects, not to describe a specific order.

[0035] The implementation of the present disclosure will be described in detail below in combination with specific drawings:

[0036] Figure 1A structural schematic diagram of a point coating coverage detection system provided by an embodiment of the present disclosure is shown in FIG. 1. Referring to Figure 1 The point coating coverage detection system comprises:

[0037] The slide 11, the limiting module 13, the signal acquisition module, the signal processing module, the signal receiving module, the control module, and the distance adjustment module; the limiting module 13 is fixed at both ends of the slide 11.

[0038] The signal acquisition module is connected with the signal processing module, and is configured to move on the slide 11 and collect the point coating coverage data of the diaphragm 12.

[0039] The signal processing module is connected with the signal receiving module, and is configured to process the point coating coverage data of the diaphragm 12 and send it to the signal receiving module.

[0040] The signal receiving module is connected with the control module, and the control module is connected with the distance adjustment module, which is used to be connected with the point coating equipment.

[0041] In this embodiment, the slide 11 can provide a movable path support for other modules, so that the relevant detection components (the signal acquisition module) can move back and forth on it to detect the point coating coverage of the diaphragm 12 at different positions.

[0042] The signal acquisition module can move on the slide 11 and has the function of collecting the point coating coverage data of the diaphragm 12. For example, through certain sensor technology (such as optical sensor, electronic sensor, etc.), the relevant physical quantities (such as color, thickness, etc.) of the point coating area on the surface of the diaphragm 12 are obtained, which can reflect the point coating coverage.

[0043] The limiting module 13 is fixed at both ends of the slide 11, and through the distance between the two limiting modules 13, the coverage rate of different width diaphragms 12 can be tested.

[0044] The signal processing module is connected with the signal acquisition module, and can receive the original point coating coverage data obtained by the signal acquisition module, and then use specific algorithms and processing techniques (such as filtering, amplification, analog-to-digital conversion, etc.) to process these data, so as to convert them into a form that is easier to analyze and transmit, and finally send the processed data to the signal receiving module.

[0045] The signal receiving module can receive the point coating coverage data processed by the signal processing module and send it to the control module. The control module is connected with the signal receiving module and the distance adjusting module. On the one hand, it can receive the point coating coverage data from the signal receiving module, and on the other hand, it can analyze and judge the received data (such as whether the point coating coverage meets the standard), and send corresponding control instructions to the distance adjusting module according to the analysis result.

[0046] The distance adjusting module is used to connect with the point coating equipment, which can adjust the distance between the plate roller and the back roller according to the instructions from the control module. For example, when it is detected that the point coating coverage is less than the preset coverage, the control module can control the distance adjusting module to change the distance between the plate roller and the back roller to optimize the subsequent point coating operation.

[0047] In this embodiment, first, the signal acquisition module starts to move on the slide 11 when receiving the instruction, and scans and detects each part of the measured diaphragm 12 along the slide 11, and collects the point coating coverage data of the diaphragm 12 through the microscope 16 equipped by itself. These data contain various feature information of the point coating area on the surface of the diaphragm 12, which can reflect the actual situation of the point coating coverage. The collected original point coating coverage data is sent to the signal processing module. The signal processing module processes these original data, removes noise interference, performs data format conversion, etc., and converts them into a standard, accurate and convenient form for subsequent transmission and analysis, and then sends the processed data to the signal receiving module. After receiving the processed point coating coverage data, the signal receiving module sends it to the control module. The control module analyzes the received data in detail, such as calculating the point coating coverage and other related indicators. According to the pre-set standard (such as the threshold of qualified point coating coverage), it is judged whether the current point coating coverage meets the requirements. If the judgment result shows that the point coating coverage does not meet the standard or needs to be adjusted and optimized, the control module will generate corresponding control instructions according to the analysis situation and send these instructions to the distance adjusting module. After receiving the control instructions, the distance adjusting module adjusts the distance between the plate roller and the back roller according to the instructions from the control module.

[0048] From the above, first, the present disclosure realizes comprehensive and accurate detection of different positions of the diaphragm 12 through the cooperation of the slide 11 and the signal acquisition module. The signal acquisition module moves on the slide 11, which can capture the subtle differences of the point coating area on the surface of the diaphragm 12, providing strong support for accurate evaluation of the point coating coverage. This not only improves the accuracy and reliability of the detection, but also effectively avoids quality problems caused by incomplete detection.

[0049] Secondly, the present disclosure realizes the automatic adjustment of the point coating equipment through intelligent control. When it is detected that the point coating coverage does not meet the standard, the control module can quickly respond and adjust the distance between the plate roller and the back roller through the distance adjustment module, thereby optimizing the subsequent point coating operation. As can be seen, the present disclosure not only can improve the production efficiency, but also can reduce the cost of manual intervention.

[0050] In an embodiment of the present disclosure, referring to Figure 2 , the signal acquisition module comprises:

[0051] a light signal receiving unit and a light signal processing unit;

[0052] The light signal receiving unit is connected with the light signal processing unit, and the light signal processing unit is connected with the signal processing module;

[0053] The light signal receiving unit is configured to receive the light signal reflected by the detected diaphragm 12, and the light signal processing unit is configured to convert the light signal into an electrical signal.

[0054] In the present embodiment, the light signal receiving unit is the front-end part of the signal acquisition module, and its main function is to receive the light signal from the detected diaphragm 12. These light signals are usually irradiated onto the diaphragm 12 by some light source (such as LED lamp, laser, etc.) and reflected back by the surface of the diaphragm 12. The light signal receiving unit can contain optical elements (such as lenses, filters, etc.) to focus, filter or enhance the received light signal. The light signal receiving unit can be a digital microscope 16.

[0055] The light signal processing unit is closely connected with the light signal receiving unit and can convert the received light signal into an electrical signal. This conversion is usually realized through photodetectors (such as photodiodes, photoresistors, etc.), which can convert the optical energy in the light signal into electrical energy. The converted electrical signal also needs to be further amplified, filtered or modulated, etc. to be compatible with the subsequent signal processing module and to ensure the accuracy and stability of the signal. The light signal processing unit can be a CCD camera, and the light reflected by the detected diaphragm 12 is transmitted to the CCD through the built-in lens of the digital microscope 16; when the CCD is exposed, the photodiode is excited by the light and releases the electrical charge to generate the electrical signal of the photosensitive element.

[0056] The signal processing module is connected with the light signal processing unit, receives the electrical signal from the light signal processing unit, and further processes and analyzes it, such as the steps of digitizing, filtering, feature extraction, data analysis, etc. of the signal. The processed data can be used to evaluate the point coating coverage of the diaphragm 12, detect abnormalities, etc.

[0057] From the above, the signal acquisition module in the embodiment can effectively receive and convert the light signal reflected by the detected diaphragm 12 into an electrical signal through light signal receiving and processing technology, providing a high-quality data basis for subsequent signal processing. The embodiment not only improves the accuracy of point coating coverage detection, but also enhances the stability and compatibility of the system, providing strong support for accurate evaluation of diaphragm 12 point coating quality and timely detection of abnormalities, improving overall detection efficiency and reliability.

[0058] In an embodiment of the present disclosure, referring to Figure 2 , the signal processing module comprises:

[0059] a signal preprocessing unit, an analog-to-digital conversion unit, and an encoding unit.

[0060] The signal preprocessing unit is connected to the light signal processing unit, the signal preprocessing unit is connected to the analog-to-digital conversion unit, the analog-to-digital conversion unit is connected to the encoding unit, and the encoding unit is connected to the signal receiving module.

[0061] In the embodiment, the main function of the signal preprocessing unit is to preliminarily process the original electrical signal, such as removing noise, amplifying the signal, etc., to ensure the accuracy and reliability of subsequent processing. The analog-to-digital conversion unit can convert the pre-processed continuous analog signal into a discrete digital signal. The encoding unit receives the digital signal from the analog-to-digital conversion unit and encodes it. Encoding involves data compression, format conversion, or adding check codes, etc. to ensure data integrity and transmission efficiency. The encoded data can be sent to the signal receiving module for further processing or transmission. The analog-to-digital conversion unit and the encoding unit can be units in a digital signal processor.

[0062] From the above, the signal processing module in the embodiment can effectively improve the accuracy and transmission efficiency of the signal through the cooperative work of the signal preprocessing, analog-to-digital conversion and encoding units.

[0063] In an embodiment of the present disclosure, referring to Figure 2 , a point coating coverage detection system further comprises:

[0064] an automatic lifting module;

[0065] The automatic lifting module is arranged at the bottom of both ends of the slide 11, and the automatic lifting module is connected to the control module; the automatic lifting module is configured to adjust the distance between the signal acquisition module and the detected diaphragm 12.

[0066] In this embodiment, the automatic lifting module is arranged at the bottom of both ends of the slide 11, and can adjust the height of the slide 11 according to the control instruction sent by the control module. When the system starts, the control module will send an initial instruction to the automatic lifting module according to the pre-set parameters (such as the standard detection distance). These parameters can be determined based on factors such as the optimal working distance of the signal acquisition module (for example, the microscope 16) used. When the system starts to work, the signal acquisition module moves on the slide 11 to collect data, and the data is transmitted to the control module after being processed by the signal processing module and the signal receiving module. While analyzing the data, the control module will also consider whether the distance between the signal acquisition module and the detected diaphragm 12 is appropriate. If the control module determines that the distance between the current signal acquisition module and the detected diaphragm 12 does not meet the requirements, for example, the collected data is not clear and accurate enough, which may be caused by the risk of collision due to too close distance or low resolution of the collected data due to too far distance, the control module will generate an adjustment instruction according to the pre-set algorithm and standard.

[0067] After receiving the adjustment instruction sent by the control module, the automatic lifting module starts to perform the lifting operation. If the distance needs to be increased, the automatic lifting module will lift the slide 11 (and the signal acquisition module on it) upwards; if the distance needs to be reduced, the automatic lifting module will lower the slide 11 (and the signal acquisition module on it) downwards. During the lifting process, the automatic lifting module will feedback the height change of the lifting in real time through the distance sensor equipped, so that the control module can accurately control the degree of distance adjustment, until the signal acquisition module and the detected diaphragm 12 reach the appropriate distance, ensuring the quality of the collected data and the normal operation of the system.

[0068] From the above, first of all, the embodiment can adjust the distance between the signal acquisition module and the diaphragm 12 as needed, ensuring that the collected data is clear and accurate. Avoiding data errors caused by improper distance, optimizing the detection effect, and making the detection result more reliably reflect the point coating coverage. Secondly, the present disclosure can detect diaphragms 12 of different types, thicknesses or installation conditions, automatically adjust to the optimal distance, improve the compatibility of the system to various working conditions, and expand the application range of the system.

[0069] In one embodiment of the present disclosure, referring to Figure 2 A point coating coverage detection system further comprises:

[0070] A fixing bolt 14;

[0071] The fixing bolt 14 is arranged on the slide 11 and is configured to fix the signal acquisition module.

[0072] In this embodiment, the signal acquisition module can slide on the slide 11 and can stay at any position. The fixing bolt 14 can fix the signal acquisition module at any position of the slide 11.

[0073] In an embodiment of the present disclosure, referring to Figure 2 , the point coating coverage detection system further comprises:

[0074] a communication module;

[0075] The communication module is connected with the control module, and the communication module is further configured to connect with an external monitoring terminal.

[0076] In the present embodiment, the communication module is connected with the control module to realize data transmission within the point coating coverage detection system. This includes transmitting the instructions, parameter settings and other information issued by the control module to other modules or components within the system, and feeding back the running status, monitoring data and other information of the system to the control module. The communication module can also establish a connection with the external monitoring terminal to realize remote monitoring and data transmission. The external monitoring terminal can be a computer, a mobile device or other devices with monitoring functions. Through the communication module, the system can transmit real-time running status, fault alarms, data records and other information to the monitoring terminal for the operator to view and analyze. The communication module usually supports multiple communication protocols and interface standards, such as Ethernet, serial communication, CAN bus, etc. This enables the system to be compatible and connected with different types of external devices or systems, improving the integration and flexibility of the system.

[0077] From the above, it can be seen that the communication module significantly improves the remote monitoring capability of the system, ensures real-time transmission and synchronization of data, and enables the operator to master the running status of the system in real time on the external monitoring terminal, perform remote control and debugging, and improve the operation convenience and system response speed. At the same time, supporting multiple communication protocols enhances the compatibility of the system, bringing convenience for the integration and maintenance of the system.

[0078] In an embodiment of the present disclosure, referring to Figure 3 and Figure 4 , Figure 3 is a schematic diagram of an application scenario of a point coating coverage detection system according to an embodiment of the present disclosure; Figure 4 is a structural schematic diagram of a point coating coverage detection system according to another embodiment of the present disclosure. The positioning bolt 15 can be used to fix the slide, and when the diaphragm 12 to be detected passes through the slide 11, the signal acquisition module arranged on the slide 11 can acquire the point coating coverage data of the diaphragm 12 for subsequent data analysis.

[0079] The above examples are only used to illustrate the technical solutions of the present disclosure, rather than limit them; although the present disclosure has been described in detail with reference to the foregoing examples, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present disclosure.

Claims

1. A spot coverage detection system, characterized by, The point coating coverage rate detection system comprises a slide, a limiting module, a signal acquisition module, a signal processing module, a signal receiving module, a control module and a distance adjusting module; the limiting module is fixed at both ends of the slide; The signal acquisition module is connected with the signal processing module, and the signal acquisition module is configured to move on the slide and collect point coating coverage data of a diaphragm; The signal processing module is connected with the signal receiving module, and the signal processing module is configured to process the point coating coverage data of the diaphragm and send it to the signal receiving module; The signal receiving module is connected with the control module, and the control module is connected with the distance adjusting module, and the distance adjusting module is used to be connected with a point coating device. The signal acquisition module comprises:

2. A spot coverage detection system as claimed in claim 1, wherein, an optical signal receiving unit and an optical signal processing unit; The optical signal receiving unit is connected with the optical signal processing unit, and the optical signal processing unit is connected with the signal processing module; The optical signal receiving unit is configured to receive a light signal reflected by a detected diaphragm, and the optical signal processing unit is configured to convert the light signal into an electrical signal. The signal processing module comprises:

3. A spot coverage detection system as claimed in claim 2, wherein, a signal preprocessing unit, an analog-digital conversion unit and an encoding unit; The signal preprocessing unit is connected with the optical signal processing unit, the signal preprocessing unit is connected with the analog-digital conversion unit, the analog-digital conversion unit is connected with the encoding unit, and the encoding unit is connected with the signal receiving module. Further comprising:

4. A spot coverage detection system as claimed in claim 1, wherein, an automatic lifting module; The automatic lifting module is arranged at both ends of the bottom of the slide, and the automatic lifting module is connected with the control module; the automatic lifting module is configured to adjust the distance between the signal acquisition module and the detected diaphragm. Further comprising:

5. A spot coverage detection system as claimed in claim 1, wherein, a fixing bolt; The fixing bolt is arranged on the slide and is configured to fix the signal acquisition module. The point coating coverage rate detection system further comprises:

6. A spot coverage detection system as claimed in claim 1, wherein, a communication module; The communication module is connected with the control module, and the communication module is further used to be connected with an external monitoring terminal. ​

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