Automatic dispensing device for electromagnet sheets and control method thereof

Abstract

The present invention relates to the technical field of dispensing equipment, and in particular to an automatic dispensing equipment for electromagnet sheets and a control method thereof, comprising a feeding mechanism, a conveying mechanism and a dispensing mechanism, wherein the feeding mechanism comprises a feeding workbench, a first threaded slide rod is installed on the feeding workbench, a first threaded slider is slidably connected to the first threaded slider, a first motor is installed on the feeding workbench, the first motor is cooperatively connected to the first threaded slider, a material storage trough is fixedly installed on the first threaded slider, a support frame is fixedly installed on the feeding workbench, and a plurality of guide cylinders are installed on the support frame. Through intelligent control, high precision of the dispensing position is achieved, errors under manual intervention are reduced, and production efficiency and consistency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of glue dispensing equipment, in particular to an automatic glue dispensing equipment for electromagnet sheets and a control method thereof. Background Art

[0002] Automatic dispensing equipment for electromagnet sheets is a type of automated equipment widely used in the manufacturing industry, particularly in the electronics, automotive, and home appliance industries. Traditional dispensing operations rely primarily on manual labor, which is not only inefficient but also prone to errors, impacting product quality. With the development of Industry 4.0 and smart manufacturing, automated dispensing equipment is becoming a mainstream market demand. However, existing automatic dispensing equipment mostly uses mechanical or pneumatic drive systems, which suffer from slow response speed, low accuracy, and poor stability. Furthermore, these devices often rely on simple open-loop control methods, which cannot achieve precise dispensing trajectory control and glue volume adjustment, making it difficult to meet the needs of high-precision and high-speed production. Furthermore, existing dispensing equipment lacks intelligence and is lacking in corresponding control algorithms. This makes it difficult to form an effective feedback adjustment mechanism and intelligently control the dispensing process, affecting production efficiency, product quality, and production costs. Summary of the Invention

[0003] In order to solve the problems of low precision, poor stability and low intelligence of existing automatic dispensing equipment, the present invention provides an electromagnet sheet automatic dispensing equipment and a control method thereof.

[0004] To achieve the above-mentioned purpose, the present invention discloses an automatic dispensing device for electromagnet sheets, comprising a feeding mechanism, a conveying mechanism and a dispensing mechanism;

[0005] The feeding mechanism includes a feeding workbench, a first threaded slide rod is installed on the feeding workbench, a first threaded slider is slidably connected to the first threaded slider, a first motor is installed on the feeding workbench, the first motor is cooperatively connected to the first threaded slider, and a material storage trough is fixedly installed on the first threaded slider;

[0006] A support frame is fixedly mounted on the loading workbench, and a plurality of guide cylinders are mounted on the support frame. A linear guide rail is cooperatively connected to the guide cylinder, and a magnetic chuck is cooperatively connected to the bottom end of the linear guide rail. A first telescopic cylinder is also mounted on the support frame, and the movable end of the first telescopic cylinder is fixedly connected to the magnetic chuck.

[0007] The dispensing mechanism includes a dispensing workbench, a fixing frame is installed on the workbench, a three-axis slide module is installed on the fixing frame, and a dispensing head is installed on the three-axis slide module; the transmission mechanism includes a transmission line, the transmission line frame is installed on the loading workbench and the dispensing workbench, and a plurality of material receiving plates are arranged on the transmission line at preset intervals.

[0008] More specifically, the three-axis slide module includes an X-direction slide module, a Y-direction slide module, and a Z-direction slide module. The X-direction slide module includes an X-axis threaded slide rod, an X-axis guide rail, an X-axis motor, and an X-axis threaded slider. The X-axis motor is cooperatively connected to the X-axis threaded slide rod, and the X-axis threaded slide rod and the X-axis guide rail are installed on the support frame in parallel. The X-axis threaded slider is slidably connected to the X-axis threaded slide rod, and the X-axis guide rail is slidably connected to the X-axis guide block.

[0009] More specifically, the Y-direction slide module is mounted on the X-axis guide block and the X-axis threaded slider, the Y-direction slide module includes a Y-axis threaded slide rod, a Y-axis motor and a Y-axis threaded slider, the Y-axis motor is cooperatively connected to the Y-axis threaded slide rod, and the Y-axis threaded slider is slidably connected to the Y-axis threaded slide rod; the Z-direction slide module is installed on the Y-axis threaded slider, the Z-direction slide module includes a Z-axis threaded slide rod, a Z-axis motor and a Z-axis threaded slider, the Z-axis motor is cooperatively connected to the Z-axis threaded slide rod, and the Z-axis threaded slider is slidably connected to the Z-axis threaded slide rod, and the dispensing head is installed on the Z-axis threaded slider.

[0010] More specifically, both the dispensing workbench and the loading workbench are provided with industrial cameras.

[0011] More specifically, the X-axis threaded slider, the Y-axis threaded slider and the Z-axis threaded slider are each provided with a photoelectric sensor, which is used to detect the real-time position status information of the X-axis threaded slider, the Y-axis threaded slider and the Z-axis threaded slider.

[0012] In addition, to achieve the above-mentioned purpose, the present invention also discloses a control method for an automatic dispensing device for an electromagnet sheet, comprising the following steps:

[0013] At the preset time point, the loading mechanism is controlled to start, so that the magnetic suction cup moves to the storage trough to absorb the electromagnetic sheet, and the loading mechanism is controlled to transfer the electromagnetic sheet to the receiving plate of the conveyor line;

[0014] After the electromagnetic sheet is transferred to the material receiving plate, an industrial camera on the loading workbench obtains image information of the actual position state of the electromagnetic sheet on the material receiving plate, and detects and processes the position state of the electromagnetic sheet based on the image information of the actual position state to obtain the position state of the electromagnetic sheet;

[0015] If the position state of the electromagnetic sheet is in an offset state, the electromagnetic sheet is corrected until the position state of the electromagnetic sheet is in a normal state;

[0016] If the position state of the electromagnetic sheet is normal, the transmission line is controlled to rotate, so as to drive the electromagnetic sheet on the receiving plate to the bottom of the dispensing mechanism through the transmission line;

[0017] Controlling the start of the dispensing mechanism, dispensing the electromagnetic sheet through the dispensing mechanism, and obtaining real-time dispensing working condition image information based on the industrial camera of the dispensing workbench at a preset dispensing time node during the dispensing process, identifying and processing the real-time dispensing working condition based on the real-time dispensing working condition image information, and obtaining a real-time dispensing working condition identification result;

[0018] If the real-time dispensing condition is an abnormal dispensing condition, the dispensing mechanism is controlled to stop dispensing the current electromagnetic sheet, and the current electromagnetic sheet is marked as a dispensing semi-finished waste; and the dispensing procedure is executed for the next electromagnetic sheet;

[0019] If the real-time dispensing working condition is the normal dispensing working condition, the dispensing mechanism will not be regulated.

[0020] More specifically, the position state of the electromagnetic sheet is detected and processed based on the actual position state image information to obtain the position state of the electromagnetic sheet, specifically:

[0021] Obtaining preset dispensing process parameter information of the electromagnetic sheet, obtaining standard position state information of the electromagnetic sheet on the material receiving plate according to the preset dispensing process parameter information, and drawing a three-dimensional model diagram of the standard position state of the electromagnetic sheet on the material receiving plate according to the standard position state information of the electromagnetic sheet on the material receiving plate;

[0022] Acquire image information of the actual position state of the electromagnetic sheet on the receiving plate, and construct a three-dimensional model diagram of the actual position state of the electromagnetic sheet based on the image information of the actual position state;

[0023] Coloring the standard position state three-dimensional model diagram and the actual position state three-dimensional model diagram based on model rendering software, so as to color the standard position state three-dimensional model diagram in red and the actual position state three-dimensional model diagram in green;

[0024] Constructing a grid coordinate system, inputting the colored standard position state three-dimensional model diagram and the actual position state three-dimensional model diagram into the grid coordinate system, and making the positioning reference surfaces in the standard position state three-dimensional model diagram and the actual position state three-dimensional model diagram coincide with each other;

[0025] Obtaining, in the grid coordinate system, a total volume value of a model having only red or green colors, and a total volume value of a model having both red and green colors; and calculating a degree of displacement of the electromagnetic sheet on the receiving plate based on the total volume value of the model having only red or green colors and the total volume value of the model having both red and green colors.

[0026] If the offset of the electromagnetic sheet on the material receiving plate is greater than the preset offset, the position state of the electromagnetic sheet is defined as an offset state; if the offset of the electromagnetic sheet on the material receiving plate is not greater than the preset offset, the position state of the electromagnetic sheet is defined as a normal state.

[0027] More specifically, the real-time dispensing working condition is identified and processed based on the real-time dispensing working condition image information to obtain a real-time dispensing working condition identification result, which is specifically:

[0028] Retrieve characteristic image information of various abnormal dispensing conditions based on a big data network; abnormal dispensing conditions include glue overflow, stringing, glue leakage, curing abnormalities, depressions, protrusions, and accumulation;

[0029] Acquire real-time dispensing working condition image information, and calculate the cosine similarity between the real-time dispensing working condition image information and each feature image information based on a cosine similarity algorithm to obtain a plurality of cosine similarities;

[0030] Compare each cosine similarity with a preset cosine similarity threshold; if each cosine similarity is not greater than the preset cosine similarity threshold, mark the real-time dispensing condition as a normal dispensing condition;

[0031] If there is a situation where one or more cosine similarities are greater than the preset cosine similarity threshold, the real-time dispensing condition is marked as an abnormal dispensing condition, and feature image information whose cosine similarity is greater than the preset cosine similarity threshold is obtained. The abnormal condition type of the abnormal dispensing condition is determined based on the feature image information whose cosine similarity is greater than the preset cosine similarity threshold.

[0032] The following steps are also included:

[0033] Obtain all abnormal dispensing conditions of the dispensing equipment within a preset time, and obtain the abnormal condition type corresponding to each abnormal dispensing condition, and obtain various abnormal condition types generated by the dispensing equipment within the preset time;

[0034] Conduct statistical analysis on various abnormal working conditions generated by the dispensing equipment within a preset time to obtain the probability values ​​of various abnormal working conditions;

[0035] If the probability value of a certain abnormal working condition type is greater than a preset probability value, then a correlation analysis is performed between the abnormal working condition type and each sub-dispensing module of the dispensing equipment to obtain a sub-dispensing module with a correlation greater than the preset correlation;

[0036] Acquiring real-time operating parameters of a sub-dispensing module with a correlation greater than a preset correlation; and acquiring preset operating parameters of a sub-dispensing module with a correlation greater than a preset correlation based on preset dispensing process parameter information of the electromagnetic sheet;

[0037] Comparing the real-time working parameters of the sub-dispensing modules whose correlation is greater than the preset correlation with the preset working parameters to obtain a working parameter deviation value;

[0038] If the working parameter deviation value is greater than the preset deviation threshold, the real-time working parameters of the sub-dispensing module whose correlation is greater than the preset correlation are corrected.

[0039] The present invention solves the technical defects existing in the background technology, and has the following beneficial effects: through intelligent control, high precision of the dispensing position is achieved, errors caused by manual intervention are reduced, and production efficiency and consistency are improved. The equipment can promptly detect and correct problems in the dispensing process, such as uneven glue amount, position deviation, etc., thereby greatly reducing the scrap rate and ensuring product quality; and through the application of three-dimensional model comparison technology, the equipment can accurately evaluate the position accuracy of the electromagnet sheet, further improving the stability of the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, without paying any creative work, they can also obtain drawings of other embodiments based on these drawings.

[0041] Figure 1 This is a first overall structural diagram of the device;

[0042] Figure 2 2 is a schematic diagram of the second overall structure of the device;

[0043] Figure 3 It is a first three-dimensional structural schematic diagram of the feeding mechanism;

[0044] Figure 4 is a second three-dimensional structural schematic diagram of the feeding mechanism;

[0045] Figure 5 It is a structural diagram of the dispensing mechanism;

[0046] Figure 6 It is a structural diagram of the three-axis slide module;

[0047] The accompanying drawings are explained as follows: 101, loading mechanism; 102, conveying mechanism; 103, dispensing mechanism; 104, loading workbench; 105, first threaded slide rod; 106, first threaded slider; 107, first motor; 108, material storage trough; 109, support frame; 201, guide cylinder; 202, linear guide rail; 203, magnetic suction cup; 204, first telescopic cylinder; 205, dispensing workbench; 206, fixed frame; 207, dispensing head; 208, conveying line; 209, material receiving plate; 301, X-direction slide module; 302, Y-direction slide module; 303, Z-direction slide module. DETAILED DESCRIPTION

[0048] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner. Therefore, they only show the structures related to the present invention. It should be noted that, unless there is a conflict, the embodiments in this application and the features in the embodiments can be combined with each other.

[0049] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0050] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0051] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0052] like Figure 1 、 2 As shown, the present invention discloses an automatic dispensing device for electromagnet sheets, comprising a feeding mechanism 101, a conveying mechanism 102 and a dispensing mechanism 103.

[0053] like Figure 3 、 4 As shown, the feeding mechanism 101 includes a feeding workbench 104, a first threaded slide 105 is installed on the feeding workbench 104, a first threaded slider 106 is slidably connected to the first threaded slider 105, a first motor 107 is installed on the feeding workbench 104, the first motor 107 is cooperatively connected to the first threaded slider 106, and a material storage trough 108 is fixedly installed on the first threaded slider 106;

[0054] A support frame 109 is fixedly mounted on the loading workbench 104, and a plurality of guide cylinders 201 are mounted on the support frame 109. The guide cylinders 201 are cooperatively connected to linear guide rails 202, and the bottom ends of the linear guide rails 202 are cooperatively connected to magnetic chucks 203. A first telescopic cylinder 204 is also mounted on the support frame 109, and the movable end of the first telescopic cylinder 204 is fixedly connected to the magnetic chuck 203.

[0055] like Figure 5 As shown, the dispensing mechanism 103 includes a dispensing workbench 205, a fixing frame 206 is installed on the workbench, a three-axis slide module is installed on the fixing frame 206, and a dispensing head 207 is installed on the three-axis slide module; the conveying mechanism 102 includes a conveying line 208, and the conveying line 208 is mounted on the loading workbench 104 and the dispensing workbench 205, and a plurality of material receiving plates 209 are arranged on the conveying line 208 at preset intervals.

[0056] During the operation of the device, the first motor 107 is first controlled to drive according to the set program, thereby driving the storage trough 108 to the preset position, so as to drive the electromagnet sheet in the storage trough 108 to the preset position; then the first telescopic cylinder 204 is controlled to start, so that the electric magnetic suction cup 203 of the first telescopic cylinder 204 moves downward, thereby sucking the electromagnet sheet in the storage trough 108 through the magnetic suction cup 203, and then the first telescopic cylinder 204 is controlled to drive the magnetic suction cup 203 to move upward to the preset position, and at this time the transmission line 208 is controlled to transmit, thereby moving the material receiving plate 209 is driven to the bottom of the magnetic suction cup 203. At this time, the first telescopic cylinder 204 is controlled to drive the magnetic suction cup 203 to move down to the surface of the material receiving plate 209, and the magnetic suction cup 203 releases the electromagnet sheet, thereby completing the loading process; then the transmission line 208 is controlled to transmit, so as to transport the material receiving plate 209 with the electromagnet sheet to the bottom of the dispensing mechanism 103. At this time, the three-axis slide module is controlled to move according to the preset program, thereby driving the dispensing head 207 to move according to the preset dispensing path, thereby dispensing the electromagnet sheet and completing the dispensing process.

[0057] More specifically, if Figure 6 As shown, the three-axis slide module includes an X-direction slide module 301, a Y-direction slide module 302, and a Z-direction slide module 303. The X-direction slide module 301 includes an X-axis threaded slide rod, an X-axis guide rail, an X-axis motor and an X-axis threaded slider. The X-axis motor is connected to the X-axis threaded slide rod, and the X-axis threaded slide rod and the X-axis guide rail are installed parallel to the support frame 109. The X-axis threaded slider is slidably connected to the X-axis threaded slide rod, and the X-axis guide rail is slidably connected to the X-axis guide block.

[0058] More specifically, the Y-direction slide module 302 is mounted on the X-axis guide block and the X-axis threaded slider, the Y-direction slide module 302 includes a Y-axis threaded slider, a Y-axis motor and a Y-axis threaded slider, the Y-axis motor is cooperatively connected to the Y-axis threaded slider, and the Y-axis threaded slider is slidably connected to the Y-axis threaded slider; the Z-direction slide module 303 is installed on the Y-axis threaded slider, the Z-direction slide module 303 includes a Z-axis threaded slider, a Z-axis motor and a Z-axis threaded slider, the Z-axis motor is cooperatively connected to the Z-axis threaded slider, the Z-axis threaded slider is slidably connected to the Z-axis threaded slider, and the dispensing head 207 is installed on the Z-axis threaded slider.

[0059] The three-axis slide module is a mechanical device that can perform linear motion in three mutually perpendicular directions. The three-axis slide module also includes a controller, which is responsible for receiving user instructions and converting them into motion control signals for the motor. The controller can set motion parameters such as motion speed, acceleration, position, etc. through programming or manual operation. The controller calculates the angle and speed that each motor needs to rotate according to the instructions, and sends the control signal to the motor; after the motor rotates, it drives the slide module to move in three axial directions through the transmission mechanism. At the same time, the encoder monitors the position of the motor in real time and feeds the position information back to the controller. The controller adjusts the movement of the motor based on the feedback information to achieve precise position control. By continuously looping this process, the three-axis slide module can perform precise linear motion according to the preset requirements, thereby driving the dispensing head 207 to move according to the preset dispensing path, thereby dispensing the electromagnet sheet.

[0060] More specifically, both the dispensing workbench 205 and the loading workbench 104 are provided with industrial cameras.

[0061] More specifically, the X-axis threaded slider, the Y-axis threaded slider and the Z-axis threaded slider are each provided with a photoelectric sensor, which is used to detect the real-time position status information of the X-axis threaded slider, the Y-axis threaded slider and the Z-axis threaded slider.

[0062] The photoelectric sensor can detect the position status information of the three-axis slide module in real time, so that the control system can accurately adjust the movement of the motor to achieve precise positioning and trajectory tracking of the slide; the position of the slide module is monitored in real time, and the position information is fed back to the control system to achieve closed-loop control and improve position accuracy.

[0063] In addition, to achieve the above-mentioned purpose, the present invention also discloses a control method for an automatic dispensing device for an electromagnet sheet, comprising the following steps:

[0064] At the preset time point, the loading mechanism is controlled to start, so that the magnetic suction cup moves to the storage trough to absorb the electromagnetic sheet, and the loading mechanism is controlled to transfer the electromagnetic sheet to the receiving plate of the conveyor line;

[0065] After the electromagnetic sheet is transferred to the material receiving plate, an industrial camera on the loading workbench obtains image information of the actual position state of the electromagnetic sheet on the material receiving plate, and detects and processes the position state of the electromagnetic sheet based on the image information of the actual position state to obtain the position state of the electromagnetic sheet;

[0066] If the position state of the electromagnetic sheet is in an offset state, the electromagnetic sheet is corrected until the position state of the electromagnetic sheet is in a normal state;

[0067] If the position state of the electromagnetic sheet is normal, the transmission line is controlled to rotate, so as to drive the electromagnetic sheet on the receiving plate to the bottom of the dispensing mechanism through the transmission line;

[0068] Controlling the start of the dispensing mechanism, dispensing the electromagnetic sheet through the dispensing mechanism, and obtaining real-time dispensing working condition image information based on the industrial camera of the dispensing workbench at a preset dispensing time node during the dispensing process, identifying and processing the real-time dispensing working condition based on the real-time dispensing working condition image information, and obtaining a real-time dispensing working condition identification result;

[0069] If the real-time dispensing condition is an abnormal dispensing condition, the dispensing mechanism is controlled to stop dispensing the current electromagnetic sheet, and the current electromagnetic sheet is marked as a dispensing semi-finished waste; and the dispensing procedure is executed for the next electromagnetic sheet;

[0070] If the real-time dispensing working condition is the normal dispensing working condition, the dispensing mechanism will not be regulated.

[0071] It should be noted that the loading mechanism automatically activates at a preset time, using a magnetic suction cup to pick up the electromagnetic sheet from the storage trough and transfer it to the conveyor's receiving plate. The system is equipped with an industrial camera to monitor the position of the electromagnetic sheet on the receiving plate in real time. Image processing technology is used to detect any deviation in the sheet's position. If deviation is detected, correction is performed until it returns to normal. Once the sheet is properly positioned, the conveyor line moves it under the dispensing mechanism, which then performs dispensing according to a pre-set program. During the dispensing process, the system also uses the industrial camera to capture real-time images of the dispensing process and performs recognition processing to determine whether the dispensing process is normal. If an anomaly is detected, the system stops the current dispensing operation, marks the sheet as scrapped, and executes the dispensing procedure for the next sheet. If the dispensing process is normal, dispensing continues without any adjustments. The entire loading and dispensing process does not require human intervention, reducing labor costs and operational errors; through image recognition technology, the system can accurately detect the position status and dispensing conditions of the electromagnetic sheet to ensure product quality; the system can acquire and process image information in real time, quickly respond and adjust operations, and improve production efficiency and stability; and, by automatically detecting and marking unqualified semi-finished products, it can avoid continuing to dispensing semi-finished products that have become waste, which can effectively reduce processing costs and realize intelligent dispensing operations.

[0072] More specifically, the position state of the electromagnetic sheet is detected and processed based on the actual position state image information to obtain the position state of the electromagnetic sheet, specifically:

[0073] Obtaining preset dispensing process parameter information of the electromagnetic sheet, obtaining standard position state information of the electromagnetic sheet on the material receiving plate according to the preset dispensing process parameter information, and drawing a three-dimensional model diagram of the standard position state of the electromagnetic sheet on the material receiving plate according to the standard position state information of the electromagnetic sheet on the material receiving plate;

[0074] Acquire image information of the actual position state of the electromagnetic sheet on the receiving plate, and construct a three-dimensional model diagram of the actual position state of the electromagnetic sheet based on the image information of the actual position state;

[0075] Coloring the standard position state three-dimensional model diagram and the actual position state three-dimensional model diagram based on model rendering software, so as to color the standard position state three-dimensional model diagram in red and the actual position state three-dimensional model diagram in green;

[0076] Constructing a grid coordinate system, inputting the colored standard position state three-dimensional model diagram and the actual position state three-dimensional model diagram into the grid coordinate system, and making the positioning reference surfaces in the standard position state three-dimensional model diagram and the actual position state three-dimensional model diagram coincide with each other;

[0077] Obtaining, in the grid coordinate system, a total volume value of a model having only red or green colors, and a total volume value of a model having both red and green colors; and calculating a degree of displacement of the electromagnetic sheet on the receiving plate based on the total volume value of the model having only red or green colors and the total volume value of the model having both red and green colors.

[0078] If the offset of the electromagnetic sheet on the material receiving plate is greater than the preset offset, the position state of the electromagnetic sheet is defined as an offset state; if the offset of the electromagnetic sheet on the material receiving plate is not greater than the preset offset, the position state of the electromagnetic sheet is defined as a normal state.

[0079] It should be noted that the standard position of the electromagnetic sheet on the material receiving plate is first acquired using preset dispensing process parameters. Based on this information, a 3D model is created using industrial software such as CAD. Then, by acquiring image information of the actual position, a 3D model of the actual position is constructed. Using model rendering software, the standard position model is colored red and the actual position model is colored green for easy comparison. A grid coordinate system is constructed using CAD or other industrial software. The two model images are input, and the positioning reference surfaces are aligned. This allows the volume values ​​of the single-color model and the two-color coexistence model to be obtained within the coordinate system. By calculating these volume values, the degree of displacement of the electromagnetic sheet can be quantitatively assessed. If the displacement exceeds a preset threshold, the device defines the position of the electromagnetic sheet as being in a displaced state; if the displacement is within the allowable range, it is defined as normal. This method enables high-precision control and real-time monitoring of the dispensing position of the electromagnetic sheet. Through automated 3D model comparison and volume calculation, it is possible to quickly and accurately determine whether the placement of the electromagnetic sheet meets process requirements, thereby reducing the need for manual inspection and improving production efficiency and product quality. In addition, the automated monitoring and feedback mechanism helps to promptly detect deviations in the production process, make timely adjustments, avoid the production of defective products, and ensure the stability and reliability of the production process.

[0080] More specifically, the real-time dispensing working condition is identified and processed based on the real-time dispensing working condition image information to obtain a real-time dispensing working condition identification result, which is specifically:

[0081] Retrieve characteristic image information of various abnormal dispensing conditions based on a big data network; abnormal dispensing conditions include glue overflow, stringing, glue leakage, curing abnormalities, depressions, protrusions, and accumulation;

[0082] Acquire real-time dispensing working condition image information, and calculate the cosine similarity between the real-time dispensing working condition image information and each feature image information based on a cosine similarity algorithm to obtain a plurality of cosine similarities;

[0083] Compare each cosine similarity with a preset cosine similarity threshold; if each cosine similarity is not greater than the preset cosine similarity threshold, mark the real-time dispensing condition as a normal dispensing condition;

[0084] If there is a situation where one or more cosine similarities are greater than the preset cosine similarity threshold, the real-time dispensing condition is marked as an abnormal dispensing condition, and feature image information whose cosine similarity is greater than the preset cosine similarity threshold is obtained. The abnormal condition type of the abnormal dispensing condition is determined based on the feature image information whose cosine similarity is greater than the preset cosine similarity threshold.

[0085] It should be noted that by pre-collecting and analyzing characteristic image information corresponding to abnormal dispensing conditions, such as glue overflow, stringing, and glue leakage, an image database for real-time monitoring is established. During actual production, the system can obtain real-time images of the dispensing process and compare them with the characteristic images in the database using a cosine similarity algorithm. By setting a cosine similarity threshold, the system can determine whether the real-time dispensing conditions are normal. If the cosine similarity between the real-time image and the characteristic image exceeds the threshold, the system identifies the abnormal dispensing condition and determines the type of abnormality based on the characteristic image with the highest similarity. This method significantly improves the automation level and quality control capabilities of the dispensing process. Through real-time monitoring and intelligent identification, the system can quickly respond to abnormalities that occur during production, reducing the need for manual inspections and thus improving production efficiency and quality. In addition, the system uses big data analysis and machine learning technologies to continuously optimize the recognition algorithm, improving the accuracy and reliability of abnormality detection. This automated monitoring and feedback mechanism helps to promptly identify and resolve production problems, reduce the number of defective products, and ensure the stability and predictability of the production process.

[0086] The following steps are also included:

[0087] Obtain all abnormal dispensing conditions of the dispensing equipment within a preset time, and obtain the abnormal condition type corresponding to each abnormal dispensing condition, and obtain various abnormal condition types generated by the dispensing equipment within the preset time;

[0088] Conduct statistical analysis on various abnormal working conditions generated by the dispensing equipment within a preset time to obtain the probability values ​​of various abnormal working conditions;

[0089] If the probability value of a certain abnormal working condition type is greater than a preset probability value, then a correlation analysis is performed between the abnormal working condition type and each sub-dispensing module of the dispensing equipment to obtain a sub-dispensing module with a correlation greater than the preset correlation;

[0090] Acquiring real-time operating parameters of a sub-dispensing module with a correlation greater than a preset correlation; and acquiring preset operating parameters of a sub-dispensing module with a correlation greater than a preset correlation based on preset dispensing process parameter information of the electromagnetic sheet;

[0091] Comparing the real-time working parameters of the sub-dispensing modules whose correlation is greater than the preset correlation with the preset working parameters to obtain a working parameter deviation value;

[0092] If the working parameter deviation value is greater than the preset deviation threshold, the real-time working parameters of the sub-dispensing module whose correlation is greater than the preset correlation are corrected.

[0093] It should be noted that by monitoring and analyzing abnormal operating conditions of the dispensing equipment in real time, determining the type of abnormal condition and its probability of occurrence, and performing correlation analysis on these abnormalities, the key submodules that may affect dispensing quality are identified. This method enables rapid identification and response to abnormal operating conditions of the dispensing equipment. By comparing real-time operating parameters with preset parameters, deviations can be promptly detected and corrected, thereby ensuring the stability and consistency of the dispensing process.

[0094] The method further comprises the following steps:

[0095] Obtaining standard characteristic image information of the glue on the electromagnet sheet after dispensing; and obtaining actual characteristic image information of the glue on the electromagnet sheet after dispensing using an industrial camera based on a dispensing workbench;

[0096] Calculating the similarity between the standard feature image information and the actual feature image information based on a cosine similarity algorithm, and if the similarity between the standard feature image information and the actual feature image information is greater than a preset similarity, transferring the electromagnet sheet to the next processing center;

[0097] If the similarity between the standard feature image information and the actual feature image information is not greater than a preset similarity, the electromagnet piece is transferred to a scrapping center;

[0098] If the similarity between the standard feature image information and the actual feature image information is not greater than a preset similarity, feature extraction processing is performed on the standard feature image information and the actual feature image information to obtain LBP feature values ​​of the standard feature image information and the actual feature image information, and LBP feature matrices of the standard feature image information and the actual feature image information are constructed to obtain a first LBP feature matrix and a second LBP feature matrix;

[0099] Calculating the difference between the elements of the first LBP feature matrix and the second LBP feature matrix at the same matrix position to obtain a plurality of difference data, constructing a difference matrix based on the difference data; and analyzing the difference matrix;

[0100] If the value of a certain element position in the difference matrix is ​​0, then the position is marked as a normal position node; if the value of a certain element position in the difference matrix is ​​not 0, then the position is marked as a defective position node; and so on, several defective position nodes are obtained;

[0101] The area formed by each defect position node is obtained to obtain the defect position area of ​​the glue after the electromagnet sheet is dispensed, and the defect position area of ​​the glue after the electromagnet sheet is dispensed is uploaded to the preset platform.

[0102] It should be noted that standard feature image information of the electromagnet sheet after dispensing is first obtained, and then the actual feature image information is captured using an industrial camera. Using the cosine similarity algorithm, the standard image is compared with the actual image to evaluate their similarity. If the similarity exceeds a preset threshold, the electromagnet sheet is transferred to the next processing center. If the similarity is insufficient, feature extraction is performed, and a feature matrix is ​​constructed using local binary pattern (LBP) eigenvalues ​​for further difference analysis. Through analysis of the difference matrix, defect location nodes can be identified, thereby determining the defective area of ​​the electromagnet sheet. This information is uploaded to a preset platform, allowing relevant technicians to optimize dispensing parameters based on the defective area in a single step. Furthermore, through automated image comparison and feature extraction, the quality of dispensing can be quickly and accurately determined, reducing the need for manual inspection and improving production efficiency and product quality.

[0103] In summary, intelligent control achieves high precision in dispensing position, reduces errors caused by manual intervention, and improves production efficiency and consistency. The equipment can promptly detect and correct problems in the dispensing process, such as uneven glue volume and position deviation, thereby significantly reducing the scrap rate and ensuring product quality. In addition, through the application of three-dimensional model comparison technology, the equipment can accurately evaluate the position accuracy of the electromagnet sheet, further improving the stability of the process.

[0104] The above description of the preferred embodiments of the present invention is provided as a guide, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A control method for an automatic dispensing device for an electromagnet sheet, characterized in that: The dispensing device includes a feeding mechanism, a conveying mechanism and a dispensing mechanism; The feeding mechanism includes a feeding workbench, a first threaded slide rod is installed on the feeding workbench, a first threaded slider is slidably connected to the first threaded slider, a first motor is installed on the feeding workbench, the first motor is cooperatively connected to the first threaded slider, and a material storage trough is fixedly installed on the first threaded slider; A support frame is fixedly mounted on the loading workbench, and a plurality of guide cylinders are mounted on the support frame. A linear guide rail is cooperatively connected to the guide cylinder, and a magnetic chuck is cooperatively connected to the bottom end of the linear guide rail. A first telescopic cylinder is also mounted on the support frame, and the movable end of the first telescopic cylinder is fixedly connected to the magnetic chuck. The dispensing mechanism includes a dispensing workbench, a fixing frame is installed on the workbench, a three-axis slide module is installed on the fixing frame, and a dispensing head is installed on the three-axis slide module; the transmission mechanism includes a transmission line, the transmission line frame is installed on the loading workbench and the dispensing workbench, and a plurality of material receiving plates are arranged on the transmission line at preset intervals; The control method comprises the following steps: At the preset time point, the loading mechanism is controlled to start, so that the magnetic suction cup moves to the storage trough to absorb the electromagnetic sheet, and the loading mechanism is controlled to transfer the electromagnetic sheet to the receiving plate of the conveyor line; After the electromagnetic sheet is transferred to the material receiving plate, an industrial camera on the loading workbench obtains image information of the actual position state of the electromagnetic sheet on the material receiving plate, and detects and processes the position state of the electromagnetic sheet based on the image information of the actual position state to obtain the position state of the electromagnetic sheet; If the position state of the electromagnetic sheet is in an offset state, the electromagnetic sheet is corrected until the position state of the electromagnetic sheet is in a normal state; If the position state of the electromagnetic sheet is normal, the transmission line is controlled to rotate, so as to drive the electromagnetic sheet on the receiving plate to the bottom of the dispensing mechanism through the transmission line; Controlling the start of the dispensing mechanism, dispensing the electromagnetic sheet through the dispensing mechanism, and obtaining real-time dispensing working condition image information based on the industrial camera of the dispensing workbench at a preset dispensing time node during the dispensing process, identifying and processing the real-time dispensing working condition based on the real-time dispensing working condition image information, and obtaining a real-time dispensing working condition identification result; If the real-time dispensing condition is an abnormal dispensing condition, the dispensing mechanism is controlled to stop dispensing the current electromagnetic sheet, and the current electromagnetic sheet is marked as a dispensing semi-finished waste; and the dispensing procedure is executed for the next electromagnetic sheet; If the real-time dispensing working condition is the normal dispensing working condition, the dispensing mechanism will not be regulated; The following steps are also included: Obtain all abnormal dispensing conditions of the dispensing equipment within a preset time, and obtain the abnormal condition type corresponding to each abnormal dispensing condition, and obtain various abnormal condition types generated by the dispensing equipment within the preset time; Conduct statistical analysis on various abnormal working conditions generated by the dispensing equipment within a preset time to obtain the probability values ​​of various abnormal working conditions; If the probability value of a certain abnormal working condition type is greater than a preset probability value, then a correlation analysis is performed between the abnormal working condition type and each sub-dispensing module of the dispensing equipment to obtain a sub-dispensing module with a correlation greater than the preset correlation; Acquiring real-time operating parameters of a sub-dispensing module with a correlation greater than a preset correlation; and acquiring preset operating parameters of a sub-dispensing module with a correlation greater than a preset correlation based on preset dispensing process parameter information of the electromagnetic sheet; Comparing the real-time working parameters of the sub-dispensing modules whose correlation is greater than the preset correlation with the preset working parameters to obtain a working parameter deviation value; If the working parameter deviation value is greater than the preset deviation threshold, the real-time working parameters of the sub-dispensing module whose correlation is greater than the preset correlation are corrected.

2. The control method of the automatic dispensing device for electromagnet sheets according to claim 1, characterized in that: The three-axis slide module includes an X-direction slide module, a Y-direction slide module, and a Z-direction slide module. The X-direction slide module includes an X-axis threaded slide rod, an X-axis guide rail, an X-axis motor, and an X-axis threaded slider. The X-axis motor is cooperatively connected to the X-axis threaded slide rod, and the X-axis threaded slide rod and the X-axis guide rail are installed on the support frame in parallel. The X-axis threaded slider is slidably connected to the X-axis threaded slide rod, and the X-axis guide rail is slidably connected to the X-axis guide block.

3. The control method of the automatic dispensing device for electromagnet sheets according to claim 2, characterized in that: The Y-direction slide module is mounted on the X-axis guide block and the X-axis threaded slider, the Y-direction slide module includes a Y-axis threaded slide rod, a Y-axis motor and a Y-axis threaded slider, the Y-axis motor is cooperatively connected to the Y-axis threaded slide rod, and the Y-axis threaded slider is slidably connected to the Y-axis threaded slide rod; the Z-direction slide module is installed on the Y-axis threaded slider, the Z-direction slide module includes a Z-axis threaded slide rod, a Z-axis motor and a Z-axis threaded slider, the Z-axis motor is cooperatively connected to the Z-axis threaded slide rod, the Z-axis threaded slider is slidably connected to the Z-axis threaded slide rod, and the dispensing head is installed on the Z-axis threaded slider.

4. The control method of the automatic dispensing device for electromagnet sheets according to claim 1, characterized in that: Industrial cameras are provided on both the dispensing workbench and the loading workbench.

5. The control method of the electromagnet sheet automatic dispensing device according to claim 3, characterized in that: The X-axis threaded slider, the Y-axis threaded slider and the Z-axis threaded slider are all provided with photoelectric sensors, which are used to detect the real-time position status information of the X-axis threaded slider, the Y-axis threaded slider and the Z-axis threaded slider.

6. The control method of the electromagnet sheet automatic dispensing equipment according to claim 1, characterized in that: The position state of the electromagnetic sheet is detected and processed based on the actual position state image information to obtain the position state of the electromagnetic sheet, specifically: Obtaining preset dispensing process parameter information of the electromagnetic sheet, obtaining standard position state information of the electromagnetic sheet on the material receiving plate according to the preset dispensing process parameter information, and drawing a three-dimensional model diagram of the standard position state of the electromagnetic sheet on the material receiving plate according to the standard position state information of the electromagnetic sheet on the material receiving plate; Acquire image information of the actual position state of the electromagnetic sheet on the receiving plate, and construct a three-dimensional model diagram of the actual position state of the electromagnetic sheet based on the image information of the actual position state; Coloring the standard position state three-dimensional model diagram and the actual position state three-dimensional model diagram based on model rendering software, so as to color the standard position state three-dimensional model diagram in red and the actual position state three-dimensional model diagram in green; Constructing a grid coordinate system, inputting the colored standard position state three-dimensional model diagram and the actual position state three-dimensional model diagram into the grid coordinate system, and making the positioning reference surfaces in the standard position state three-dimensional model diagram and the actual position state three-dimensional model diagram coincide with each other; Obtaining, in the grid coordinate system, a total volume value of a model in which only red or green exists, and a total volume value of a model in which both red and green exist; The degree of displacement of the electromagnetic sheet on the receiving plate is calculated based on the total volume value of the model with only red or green and the total volume value of the model with both red and green; If the offset of the electromagnetic sheet on the material receiving plate is greater than the preset offset, the position state of the electromagnetic sheet is defined as an offset state; if the offset of the electromagnetic sheet on the material receiving plate is not greater than the preset offset, the position state of the electromagnetic sheet is defined as a normal state.

7. The control method of the electromagnet sheet automatic dispensing equipment according to claim 1, characterized in that: The real-time dispensing working condition is identified and processed based on the real-time dispensing working condition image information to obtain a real-time dispensing working condition identification result, specifically: Retrieve characteristic image information of various abnormal dispensing conditions based on a big data network; abnormal dispensing conditions include glue overflow, stringing, glue leakage, curing abnormalities, depressions, protrusions, and accumulation; Acquire real-time dispensing working condition image information, and calculate the cosine similarity between the real-time dispensing working condition image information and each feature image information based on a cosine similarity algorithm to obtain a plurality of cosine similarities; Compare each cosine similarity with a preset cosine similarity threshold; if each cosine similarity is not greater than the preset cosine similarity threshold, mark the real-time dispensing condition as a normal dispensing condition; If there is a situation where one or more cosine similarities are greater than the preset cosine similarity threshold, the real-time dispensing condition is marked as an abnormal dispensing condition, and feature image information whose cosine similarity is greater than the preset cosine similarity threshold is obtained. The abnormal condition type of the abnormal dispensing condition is determined based on the feature image information whose cosine similarity is greater than the preset cosine similarity threshold.

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