Dispensing quality adding mechanism control system

Abstract

The present application relates to the technical field of automatic control, and especially relates to a point glue plus quality mechanism control system, which comprises a point glue module, a moving module, a glue wiping module and a control module. The present application is provided with an image acquisition module to obtain point glue images by the control module, accurately determine the precision of glue point area for the glue output of the point glue valve, calculate the difference between the single glue output and the standard glue output, and the difference between the cumulative glue output within the preset time and the standard cumulative glue output by the control module, timely determine the state of inaccurate glue output of the point glue valve, and select the regulation and control method of the point glue plus quality system according to the glue output and the glue point area, so as to improve the quality and precision of the point glue plus quality operation. Through the execution of the glue wiping operation in the middle, the inaccuracy of the glue output of the point glue valve caused by the gradual accumulation of trace residual glue is reduced. The glue state is adjusted by adjusting the temperature control device to ensure the quality of the glue, so as to improve the quality and precision of the point glue plus quality operation.

Description

Technical Field

[0001] This invention relates to the field of automatic control technology, and in particular to a control system for a dispensing and material adding mechanism. Background Technology

[0002] With the increasing automation in the dispensing field, the demand for dispensing accuracy is also gradually increasing. The contradiction between dispensing efficiency and dispensing accuracy is becoming more prominent. In the existing mass-addition mechanism control system, the dispensing mechanism and the glue-wiping mechanism work together. Only by cleaning the residual glue on the dispensing needle of the dispensing valve in a timely manner can the dispensing accuracy and quality be guaranteed.

[0003] Chinese Patent Publication No. CN115603532A discloses a fully automated dispensing and additive processing technology and equipment for rotor dynamic balancing. The key technical point is the automation of the dispensing and cleaning process in preparation for the next cycle. This demonstrates that existing automated dispensing and additive technology urgently needs a system for precisely controlling the dispensing and additive operation. This system should prevent the gradual accumulation of trace amounts of residual adhesive during repeated dispensing and additive operations, which could lead to inaccurate dispensing volume from the dispensing valve and consequently reduce the quality of the dispensing and additive operation on the balancing impeller. Summary of the Invention

[0004] Therefore, the present invention provides a dispensing and mass-adding mechanism control system to overcome the problem in the prior art that the dispensing valve dispensing volume is difficult to guarantee accurately due to the gradual accumulation of trace amounts of residual glue, resulting in low dispensing and mass-adding repeatability.

[0005] To achieve the above objectives, the present invention provides a dispensing and material addition mechanism control system.

[0006] A dispensing module for dispensing glue onto an impeller to be balanced includes a glue tank equipped with a temperature control device, a dispensing valve for controlling the flow of glue from the glue tank, and a weight sensor for detecting the weight of the glue inside the glue tank. The glue tank is used to store glue at an initial storage temperature.

[0007] The moving module includes an X-axis module disposed on the upper part of the support frame, a Z-axis module for moving along the direction of the X-axis module, and a lifting cylinder for driving the dispensing module to move along the Z-axis module. The dispensing module is connected to the Z-axis module, and the moving module is used to drive the dispensing module to move.

[0008] The adhesive wiping module is mounted on the support frame of the movable module and is used to wipe away residual adhesive on the dispensing valve.

[0009] An image acquisition module, which is connected to the Z-axis module, is used to acquire real-time dispensing images on the impeller to be balanced;

[0010] A curing module, which is installed on the Z-axis module, is used to cure the adhesive with added material on the impeller to be balanced;

[0011] The control module, connected to the dispensing module, the moving module, the wiping module, and the image acquisition module, is used to determine whether to perform an intermediate wiping operation or adjust the initial storage temperature of the glue tank when the single dispensing difference of the dispensing valve is greater than the standard dispensing difference, based on the real-time glue dot area obtained from the real-time dispensing image. The control module can also calculate the real-time deviation rate and the real-time correction rate when performing an intermediate wiping operation, determine the real-time deviation rate based on the standard deviation rate, and determine whether to correct the preset wiping time based on the standard correction rate and the real-time correction rate.

[0012] Furthermore, the control module is equipped with a standard dispensing volume and a standard dispensing difference for a single dispensing operation. After the dispensing valve completes one dispensing operation, the control module can obtain the single dispensing volume in the glue tank through the weight sensor, calculate the single dispensing difference based on the standard dispensing volume and the single dispensing volume, and compare the single dispensing difference with the standard dispensing difference.

[0013] If the difference in glue dispensing in a single application is less than or equal to the standard difference in glue dispensing, the control module will determine the real-time cumulative difference based on the standard cumulative difference to determine whether to perform a mid-process glue wiping operation.

[0014] If the difference in glue dispensing volume in a single application is greater than the standard difference in glue dispensing volume, the control module compares the standard glue dispensing volume with the single glue dispensing volume to determine the glue dispensing status of the dispensing valve.

[0015] Furthermore, when the control module determines that the difference in glue dispensing volume in a single application is greater than the standard difference in glue dispensing volume, it will compare the standard glue dispensing volume with the single application volume.

[0016] If the amount of glue dispensed in a single operation is greater than the standard amount of glue dispensed, the control module will determine the real-time glue dot area based on the standard glue dot area range to determine whether to perform a mid-operation glue wiping operation.

[0017] If the amount of glue dispensed in a single operation is less than the standard amount, the control module will control the moving module to move the dispensing valve to the wiping module to perform an intermediate wiping operation.

[0018] Furthermore, the control module is configured with a cumulative number of dispensing verifications and a standard cumulative difference. When the control module determines that the difference in a single dispensing operation is less than or equal to the standard dispensing difference, it can calculate the real-time cumulative difference within the current dispensing time based on the set cumulative number of dispensing verifications, the standard dispensing volume, and the acquired dispensing volumes for each single operation. The real-time cumulative difference is then used to determine the correct value.

[0019] If the real-time cumulative difference is less than or equal to the standard cumulative difference, the control module determines that the dispensing valve is qualified and does not perform the mid-process wiping operation.

[0020] If the real-time cumulative difference is greater than the standard cumulative difference, the control module will control the moving module to move the dispensing valve to the wiping module to perform an intermediate wiping operation.

[0021] Furthermore, the control module is equipped with a standard glue dot area range. When the control module determines that the amount of glue dispensed in a single operation exceeds the standard amount, it can acquire a real-time dispensing image through the image acquisition module, obtain the real-time glue dot area based on the real-time dispensing image, and determine the real-time glue dot area based on the standard glue dot area range.

[0022] If the real-time glue dot area is within the standard glue dot area range, the control module will perform a shutdown check and detect the weight sensor.

[0023] If the real-time glue dot area is not within the standard glue dot area range, the control module will compare the real-time glue dot area with the standard glue dot area range. If the real-time glue dot area is smaller than the standard glue dot area range, the control module will control the moving module to move the dispensing valve to the wiping module to perform the mid-way wiping operation.

[0024] If the real-time glue dot area is larger than the standard glue dot area range, the control module will adjust the initial storage temperature of the glue box.

[0025] Furthermore, the control module is equipped with a preset adhesive application time, a first standard deviation rate, and a second standard deviation rate. When performing an adhesive application operation midway, the control module can obtain the elapsed time between the previous adhesive application operation and the current time to obtain the current adhesive application time. It then calculates the ratio of the current adhesive application time to the preset adhesive application time to obtain the real-time deviation rate. The control module determines the real-time deviation rate based on the first standard deviation rate and the second standard deviation rate.

[0026] If the real-time deviation rate is less than the first standard deviation rate, the control module will adjust the preset glue-wiping time according to the real-time deviation rate, and adjust it to the first corrected glue-wiping time.

[0027] If the real-time deviation rate is between the first standard deviation rate and the second standard deviation rate, the control module compares the standard correction rate with the real-time correction rate to determine whether to adjust the preset adhesive application time.

[0028] If the real-time deviation rate is greater than the second standard deviation rate, the control module will not adjust the preset adhesive application time.

[0029] Furthermore, the control module is equipped with a preset correction period and a standard correction rate. When the real-time deviation rate is determined to be between the first standard deviation rate and the second standard deviation rate, the control module can calculate the ratio of the number of times the glue wiping operation is performed during the preset correction period to the number of times the glue wiping operation is performed when the preset glue wiping time is reached, thus obtaining the real-time correction rate. The control module then compares the standard correction rate with the real-time correction rate.

[0030] If the real-time correction rate is less than or equal to the standard correction rate, the control module will not adjust the preset adhesive application time.

[0031] If the real-time correction rate is greater than the standard correction rate, the control module will adjust the preset adhesive application time according to the real-time deviation rate and the real-time correction rate, and adjust it to the second corrected adhesive application time.

[0032] Furthermore, the control module is equipped with an initial storage temperature for the glue box. When the control module determines that the real-time glue dot area is greater than the standard glue dot area range, it adjusts the initial storage temperature according to the real-time glue dot area and the standard glue dot area range, thus adjusting it to a corrected storage temperature.

[0033] Furthermore, the dispensing module also includes a liquid level sensor for detecting the real-time remaining glue level in the glue tank. The control module is equipped with a preset remaining glue level. When the real-time remaining glue level is less than or equal to the preset remaining glue level, the control module sends a glue shortage alarm to the external management terminal.

[0034] Furthermore, the curing module includes a curing lamp for irradiating the dispensing position of the impeller to be balanced and a detection sensor for real-time detection of the curing lamp. The control module is set with a standard decay rate. The control module can obtain the initial irradiation brightness and real-time irradiation brightness of the curing lamp detected by the detection sensor in real time, calculate the real-time decay rate based on the initial irradiation brightness and real-time irradiation brightness, and determine the real-time decay rate based on the standard decay rate to determine whether to correct the preset curing time.

[0035] Compared with the prior art, the beneficial effects of the present invention are as follows: by setting up a dispensing module for dispensing and adding quality, by setting up an image acquisition module to control the module to acquire images of glue dots after dispensing, the accuracy of dispensing and adding quality is accurately determined based on the glue dot area, by calculating the difference between the single dispensing amount and the standard dispensing amount, and by calculating the difference between the cumulative dispensing amount and the standard cumulative dispensing amount within a preset time, the state of inaccurate dispensing amount of the dispensing valve is identified in a timely manner, and the control method of the dispensing and adding quality system is selected in combination with the dispensing amount and glue dot area to improve the quality and accuracy of dispensing and adding quality. By performing a mid-process glue wiping operation, the inaccuracy of dispensing amount caused by the gradual accumulation of trace amounts of residual glue is reduced, and the glue quality is ensured by adjusting the temperature control device to adjust the glue state, thereby improving the quality and accuracy of dispensing and adding quality.

[0036] Furthermore, the amount of glue reduction in the glue tank is detected by a weight sensor to monitor the glue dispensing status in real time and promptly detect any abnormal glue dispensing volume. If the single dispensing volume difference is determined to be less than or equal to the standard dispensing volume difference, it indicates that the glue dispensing volume error is very small, and a small amount of residual glue is unavoidable. Although the error in the single dispensing volume meets the standard, it will gradually accumulate and reduce the dispensing accuracy. Therefore, it is necessary to judge the cumulative dispensing volume difference in order to perform corresponding control operations. If the single dispensing volume difference is determined to be greater than the standard dispensing volume difference, it indicates that the glue dispensing volume error is large. In this case, the actual dispensing volume is compared with the standard to analyze the glue volume status of the dispensing valve.

[0037] Furthermore, by comparing the single dispensing volume when the error exceeds the preset standard with the standard dispensing volume, corresponding operations are performed to adapt to the dispensing volume status of the dispensing valve. If it is determined that the single dispensing volume is greater than the standard dispensing volume, it means that the dispensing volume is more than the preset standard. Then, the dispensing area is detected to determine whether the excess glue has been used for the dispensing task. If it is determined that the single dispensing volume is less than the standard dispensing volume, it means that the dispensing volume is less than the preset standard. Then, due to the accumulation of residual glue in the dispensing valve clogging the dispensing needle, the dispensing volume is reduced. In this case, the glue needs to be wiped off in time to ensure the quality and accuracy of the dispensing and quality-adding operation.

[0038] Furthermore, by judging the real-time cumulative difference based on the standard cumulative difference, the system determines whether to perform a wiping operation based on the preset number of dispensing cycles. This prevents small errors in adhesive from gradually accumulating on the impeller during dispensing, which would lead to low dispensing quality. If the real-time cumulative difference is less than or equal to the standard cumulative difference, it means that the currently accumulated error amount of adhesive is within the preset standard, ensuring the quality of the dispensing and quality improvement operation. Conversely, if the real-time cumulative difference is greater than the standard cumulative difference, it means that the currently accumulated error amount of adhesive is large, and a wiping operation needs to be performed in a timely manner to improve dispensing accuracy.

[0039] Furthermore, for cases where the single glue dispensing volume exceeds the standard glue dispensing volume, the real-time glue dot area is determined based on the standard glue dot area range to ascertain the dispensing status. If the real-time glue dot area is within the standard glue dot area range, it indicates that the amount of glue added to the impeller is normal, and the large glue dispensing volume is due to the insensitivity of the weight sensor, requiring a shutdown for inspection. If the real-time glue dot area is less than the standard glue dot area range, it indicates that the dispensing head is blocked by cured residual glue, resulting in a large amount of residual glue and a reduced glue dispensing volume, requiring timely glue wiping. If the real-time glue dot area is greater than the standard glue dot area range, it indicates that the residual glue has not blocked the dispensing needle, meaning that the large amount of glue dispensing has been applied to the impeller, and the weight sensor has also sensitively detected this situation, requiring the glue status to be monitored to ensure dispensing quality.

[0040] Furthermore, by calculating the deviation between two consecutive actual glue application intervals and the preset glue application interval, the glue application interval is adjusted to meet the glue application requirements of the actual glue application task. The real-time deviation rate represents the percentage of the two consecutive actual glue application intervals relative to the set standard glue application interval. If the real-time deviation rate is less than the first standard deviation rate, it indicates that the actual glue application interval deviates significantly from the set standard value, and the set standard value needs to be corrected to ensure the accuracy of the control judgment process. If the real-time deviation rate is between the first and second standard deviation rates, it indicates that the actual glue application interval is close to the set standard value, and the preset glue application interval needs to be adjusted in conjunction with the real-time correction rate. If the real-time deviation rate is greater than the second standard deviation rate, it indicates that the two consecutive actual glue application intervals are longer than the set standard value, and the preset glue application interval does not need to be adjusted.

[0041] Furthermore, when the real-time deviation rate is determined to be between the first standard deviation rate and the second standard deviation rate, the standard correction rate is compared with the real-time correction rate to determine the accuracy of the preset adhesive application time. If the real-time correction rate is determined to be less than or equal to the standard correction rate, it means that the set preset adhesive application time is close to the actual adjacent adhesive application time interval, and there is no need to correct the preset adhesive application time. If the real-time correction rate is determined to be greater than the standard correction rate, it means that the set preset adhesive application time differs significantly from the actual adjacent adhesive application time interval, and the preset adhesive application time needs to be adjusted according to the degree of difference between the real-time correction rate and the standard correction rate so that the preset adhesive application time gradually adapts to the actual situation, thereby improving the timeliness and accuracy of the adhesive application operation and improving the quality of adhesive dispensing.

[0042] Furthermore, by reducing the temperature inside the glue box when the real-time glue dot area is determined to be larger than the standard glue dot area range, the fluidity of the glue is reduced, making the glue outflow controllable, thereby ensuring the accuracy of glue dispensing and quality addition. Attached Figure Description

[0043] Figure 1 This is a three-dimensional structural diagram of the dispensing and additive mechanism according to an embodiment of the present invention;

[0044] Figure 2 This is a schematic diagram of the dispensing and additive control system according to an embodiment of the present invention;

[0045] Figure 3 This is a flowchart illustrating the logic of the mid-process adhesive wiping operation in an embodiment of the present invention.

[0046] Figure 4 This is a flowchart illustrating the logic of correcting the preset adhesive application time in an embodiment of the present invention. Implementation

[0047] To make the objectives and advantages of the present invention clearer, the present invention will be further described below with reference to embodiments; it should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention.

[0048] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0049] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.

[0050] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0051] Please see Figure 1 and Figure 2 As shown, Figure 1 This is a three-dimensional structural diagram of the dispensing and additive mechanism according to an embodiment of the present invention. Figure 2This is a schematic diagram of the dispensing and additive control system according to an embodiment of the present invention. The present invention provides a dispensing and additive control system, including a dispensing module 1, a dispensing valve 101, a liquid level sensor 102, a moving module 2, a support frame 201, an X-axis module 202, a Z-axis module 203, a lifting cylinder 204, an adhesive wiping module 3, an image acquisition module 4, a curing module 5, a curing lamp 501, a detection sensor 502, and a control module (not shown in the figure).

[0052] Dispensing module 1 is used to dispense glue onto the impeller to be balanced. The dispensing module 1 includes a glue tank equipped with a temperature control device, a dispensing valve 101 for controlling the flow of glue from the glue tank, and a weight sensor for detecting the weight of the glue inside the glue tank. The glue tank is used to store glue at an initial storage temperature.

[0053] The moving module 2 includes an X-axis module 202 disposed on the upper part of the support frame 201, a Z-axis module 203 for moving along the X-axis module 202, and a lifting cylinder 204 for driving the dispensing module 1 to move along the Z-axis module 203. The dispensing module 1 is connected to the Z-axis module 203, and the moving module 2 is used to drive the dispensing module 1 to move.

[0054] The adhesive wiping module 3 is mounted on the support frame 201 of the moving module 2 and is used to wipe off residual adhesive on the dispensing valve 101 of the dispensing module 1.

[0055] Image acquisition module 4, which is connected to the Z-axis module 203, is used to acquire real-time dispensing images on the impeller to be balanced;

[0056] The curing module 5 is connected to the lifting cylinder 204 and is used to cure the glue added to the impeller to be balanced.

[0057] The control module, connected to the dispensing module 1, the moving module 2, the wiping module 3, and the image acquisition module 4 respectively, is used to control the moving module 2 to drive the dispensing module 1 to dispense adhesive and add mass to the impeller to be balanced, and to compare the single dispensing difference with the standard dispensing difference.

[0058] When the difference in glue dispensing volume during a single application exceeds the standard dispensing volume, the real-time glue dot area is obtained from the real-time dispensing image to determine whether to perform a mid-process glue wiping operation or adjust the initial storage temperature of the glue box.

[0059] During the mid-process adhesive application, the control module can calculate the real-time deviation rate and the real-time correction rate, determine the real-time deviation rate based on the standard deviation rate, and determine whether to correct the preset adhesive application time based on the standard correction rate and the real-time correction rate.

[0060] The dispensing and additive process is performed by setting up dispensing module 1. An image acquisition module 4 is used to acquire images of the glue dots after dispensing. The accuracy of the dispensing and additive process is precisely determined based on the area of ​​the glue dots. The control module calculates the difference between the single dispensing volume and the standard dispensing volume, as well as the difference between the cumulative dispensing volume within a preset time and the standard cumulative dispensing volume. This allows for timely identification of inaccurate dispensing volume from dispensing valve 101. The system then selects a control method for the dispensing and additive process based on the dispensing volume and glue dot area to improve the quality and accuracy of the dispensing and additive process. By performing a mid-process glue wiping operation, the inaccuracy of dispensing volume from dispensing valve 101 due to the gradual accumulation of trace amounts of residual glue is reduced. Finally, the temperature control device is adjusted to regulate the glue state, ensuring glue quality and further improving the quality and accuracy of the dispensing and additive process.

[0061] See Figure 3 As shown, it is a logic flowchart of the mid-process glue wiping operation in an embodiment of the present invention;

[0062] Specifically, the control module is equipped with a standard dispensing volume and a standard dispensing difference for a single dispensing operation. After the dispensing valve 101 completes one dispensing operation, the control module can obtain the single dispensing volume in the glue tank through the weight sensor, calculate the single dispensing difference based on the standard dispensing volume and the single dispensing volume, and compare the single dispensing difference with the standard dispensing difference.

[0063] If the difference in glue dispensing in a single application is less than or equal to the standard difference in glue dispensing, the control module will determine the real-time cumulative difference based on the standard cumulative difference to determine whether to perform a mid-process glue wiping operation.

[0064] If the difference in glue dispensing volume in a single application is greater than the difference in glue dispensing volume in a standard application, the control module compares the standard glue dispensing volume with the single glue dispensing volume to determine the glue dispensing volume status of the dispensing valve 101.

[0065] Among them, the single-batch glue difference is equal to the standard glue output minus the single-batch glue output.

[0066] In this embodiment, the standard dispensing volume is related to the actual dispensing operation requirements and the model and specifications of the dispensing valve 101. It represents the single dispensing volume of the dispensing valve 101, which is fixed for dispensing and adding materials. Generally, it is set between 0.7 microliters and 1000 microliters, and is selected according to the specifications of the dispensing valve 101 and the actual operation requirements. The standard dispensing difference represents the allowable error in dispensing volume. Generally, it is 1%-3% of the standard dispensing volume, and is selected according to the accuracy requirements of the actual dispensing task.

[0067] The amount of glue reduction in the glue tank is detected by a weight sensor, and the glue dispensing status is monitored in real time to detect abnormal glue dispensing. If the difference in glue dispensing in a single instance is less than or equal to the standard dispensing difference, it means that the glue dispensing error is very small. A small amount of residual glue is unavoidable. Although the error in glue dispensing in a single instance meets the standard, it will gradually accumulate and reduce the dispensing accuracy. Therefore, it is necessary to judge the cumulative difference in dispensing to perform corresponding control operations. If the difference in glue dispensing in a single instance is greater than the standard dispensing difference, it means that the glue dispensing error is large. In this case, the actual glue dispensing volume is compared with the standard to analyze the glue dispensing status of dispensing valve 101.

[0068] Specifically, when the control module determines that the difference in glue dispensing volume in a single application is greater than the standard difference in glue dispensing volume, it will compare the standard glue dispensing volume with the single application volume.

[0069] If the amount of glue dispensed in a single operation is greater than the standard amount of glue dispensed, the control module will determine the real-time glue dot area based on the standard glue dot area range to determine whether to perform a mid-operation glue wiping operation.

[0070] If the amount of glue dispensed in a single operation is less than the standard amount, the control module will control the moving module 2 to move the dispensing valve 101 to the wiping module 3 to perform an intermediate wiping operation.

[0071] By comparing the single dispensing volume when the error exceeds the preset standard with the standard dispensing volume, the corresponding operation is performed according to the dispensing volume status of the dispensing valve 101. If it is determined that the single dispensing volume is greater than the standard dispensing volume, it means that the dispensing volume is more than the preset standard. Then the dispensing area is detected to determine whether the excess glue has been used for the dispensing task. If it is determined that the single dispensing volume is less than the standard dispensing volume, it means that the dispensing volume is less than the preset standard. Then the glue volume is reduced because the glue residue accumulation of the dispensing valve 101 is clogging the dispensing needle. In this case, the glue needs to be wiped in time to ensure the quality and accuracy of the dispensing and quality addition operation.

[0072] Specifically, the control module is configured with a cumulative number of dispensing verifications and a standard cumulative difference. When the control module determines that the difference in a single dispensing operation is less than or equal to the standard dispensing difference, it can calculate the real-time cumulative difference within the current dispensing time based on the set cumulative number of dispensing verifications, the standard dispensing volume, and the acquired dispensing volumes for each single operation. The real-time cumulative difference is then used to determine the correct value.

[0073] If the real-time cumulative difference is less than or equal to the standard cumulative difference, the control module determines that the dispensing valve 101 is qualified to dispense glue and does not perform the mid-way glue wiping operation.

[0074] If the real-time cumulative difference is greater than the standard cumulative difference, the control module will control the moving module 2 to move the dispensing valve 101 to the wiping module 3 to perform an intermediate wiping operation.

[0075] The real-time cumulative difference is equal to the real-time cumulative dispensing amount minus the standard cumulative dispensing amount. The real-time cumulative dispensing amount is the product of the cumulative number of dispensing verifications within the current dispensing duration and the single dispensing amount corresponding to each dispensing. The standard cumulative dispensing amount is the product of the cumulative number of dispensing verifications within the current dispensing duration and the standard dispensing amount.

[0076] In this embodiment, the cumulative number of dispensing calibrations is set to represent the number of times a small dispensing error is allowed. The set value is related to the standard dispensing difference, the model and specifications of the dispensing valve 101, and the requirements of the dispensing task. Generally, it is set between 5 and 10 times, and can be selected according to the actual dispensing task.

[0077] By judging the real-time cumulative difference based on the standard cumulative difference, the system determines whether to perform a wiping operation based on the preset number of dispensing cycles. This prevents small errors in glue from gradually accumulating on the impeller during the dispensing process, which would lead to low dispensing quality. If the real-time cumulative difference is less than or equal to the standard cumulative difference, it means that the currently accumulated error glue amount is within the preset standard, which can ensure the quality of the dispensing and quality improvement operation. Conversely, if the real-time cumulative difference is greater than the standard cumulative difference, it means that the currently accumulated error glue amount is large, and a wiping operation needs to be performed in a timely manner to improve dispensing accuracy.

[0078] Specifically, the control module is equipped with a standard glue dot area range. When the control module determines that the amount of glue dispensed in a single operation exceeds the standard amount, it can acquire a real-time glue dispensing image through the image acquisition module 4, obtain the real-time glue dot area based on the real-time glue dispensing image, and determine the real-time glue dot area based on the standard glue dot area range.

[0079] If the real-time glue dot area is within the standard glue dot area range, the control module will perform a shutdown check and detect the weight sensor.

[0080] If the real-time glue dot area is not within the standard glue dot area range, the control module will compare the real-time glue dot area with the standard glue dot area range. If the real-time glue dot area is smaller than the standard glue dot area range, the control module will control the moving module 2 to move the dispensing valve 101 to the wiping module 3 to perform the mid-way wiping operation.

[0081] If the real-time glue dot area is larger than the standard glue dot area range, the control module will adjust the initial storage temperature of the glue box.

[0082] In this embodiment, the standard glue dot area range is related to the quality requirements of the glue dispensing and quality addition task and the type of glue. Generally, it is set between 100 square micrometers and 800 square micrometers, and is selected according to the actual glue dispensing amount.

[0083] By determining the dispensing status based on the standard glue dot area range when the single glue dispensing volume exceeds the standard glue dot area range, the real-time glue dot area is judged according to the standard glue dot area range. If the real-time glue dot area is determined to be within the standard glue dot area range, it means that the amount of glue added to the impeller is normal, and the large glue dispensing volume is caused by the insensitivity of the weight sensor, requiring machine shutdown and inspection. If the real-time glue dot area is determined to be within the standard glue dot area range, it means that the dispensing head is blocked by cured residual glue, resulting in more residual glue and less glue dispensing volume, requiring timely glue wiping. If the real-time glue dot area is determined to be within the standard glue dot area range, it means that the residual glue has not blocked the dispensing needle, that is, the large glue dispensing volume has been applied to the impeller, and the weight sensor has also sensitively detected this situation, requiring glue status to be detected to ensure dispensing quality.

[0084] See Figure 4 As shown, it is a logic flowchart of the present invention for correcting the preset adhesive application time in an embodiment of the present invention;

[0085] Specifically, the control module is configured with a preset adhesive application time, a first standard deviation rate, and a second standard deviation rate. When performing an adhesive application operation midway through the process, the control module can obtain the elapsed time between the previous adhesive application operation and the current time to obtain the current adhesive application time. It then calculates the ratio of the current adhesive application time to the preset adhesive application time to obtain the real-time deviation rate. The control module determines the real-time deviation rate based on the first standard deviation rate and the second standard deviation rate.

[0086] If the real-time deviation rate is less than the first standard deviation rate, the control module will adjust the preset glue-wiping time according to the real-time deviation rate, and adjust it to the first corrected glue-wiping time.

[0087] If the real-time deviation rate is between the first standard deviation rate and the second standard deviation rate, the control module compares the standard correction rate with the real-time correction rate to determine whether to adjust the preset adhesive application time.

[0088] If the real-time deviation rate is greater than the second standard deviation rate, the control module will not adjust the preset adhesive application time.

[0089] Where Tc1' = Tc × [1 - (Ab1 - As) / As], Ab1 < Ab2, Tc1' represents the calculated first corrected adhesive application time, Tc represents the set preset adhesive application time, Ab1 represents the set first standard deviation rate, Ab2 represents the set second standard deviation rate, and As represents the calculated real-time deviation rate.

[0090] In this embodiment, the preset adhesive application time represents the interval between two adhesive application operations. The setting value is related to the model and specifications of the dispensing valve 101 and the requirements of the dispensing and quality addition task. Generally, it is set between 10 min and 30 min, and is adapted to the actual dispensing and quality addition operation. The set first standard deviation rate and second standard deviation rate are affected by the current adhesive application time. Generally, the set first standard deviation rate is between 30% and 60%, and the set second standard deviation rate is between 60% and 90%, and is adapted to the requirements of the actual dispensing and quality addition task.

[0091] The deviation between two consecutive actual glue application intervals and the preset glue application interval is calculated to adjust the glue application interval to meet the actual glue application requirements. The real-time deviation rate represents the percentage of the two consecutive actual glue application intervals relative to the set standard glue application interval. If the real-time deviation rate is less than the first standard deviation rate, it indicates that the actual glue application interval deviates significantly from the set standard value, and the set standard value needs to be corrected to ensure the accuracy of the control judgment process. If the real-time deviation rate is between the first and second standard deviation rates, it indicates that the actual glue application interval is close to the set standard value, and the real-time correction rate is used to determine whether to adjust the preset glue application interval. If the real-time deviation rate is greater than the second standard deviation rate, it indicates that the two consecutive actual glue application intervals are longer than the set standard value, and the preset glue application interval does not need to be adjusted.

[0092] Specifically, the control module is equipped with a preset correction period and a standard correction rate. When the real-time deviation rate is determined to be between the first standard deviation rate and the second standard deviation rate, the control module can calculate the ratio of the number of times the glue wiping operation is performed during the preset correction period to the number of times the glue wiping operation is performed when the preset glue wiping time is reached, thus obtaining the real-time correction rate. The control module then compares the standard correction rate with the real-time correction rate.

[0093] If the real-time correction rate is less than or equal to the standard correction rate, the control module will not adjust the preset adhesive application time.

[0094] If the real-time correction rate is greater than the standard correction rate, the control module will adjust the preset adhesive application time according to the real-time deviation rate and the real-time correction rate, and adjust it to the second corrected adhesive application time.

[0095] Where Tc2' = Tc × [1 - (Ps - Pb) / Ps], Tc2' represents the calculated second correction adhesive application time, Tc represents the set preset adhesive application time, Ps represents the calculated real-time correction rate, and Pb represents the set standard correction rate.

[0096] In this embodiment, the preset correction period represents a certain time elapsed during the dispensing and material addition task. By statistically analyzing the number of intermediate wiping operations and the number of wiping operations performed when the preset wiping time is reached, the preset wiping time is adjusted according to the actual situation to improve the intelligence of the system operation. Generally, it is set between 3h and 8h, and can be adapted to the actual dispensing and material addition task requirements. The set standard correction rate is the standard value for determining whether to adjust the preset wiping time. It can be set to 80%, and can be adjusted according to the actual system requirements for dispensing and material addition tasks, as long as the preset wiping time gradually adapts to the actual situation.

[0097] By comparing the standard correction rate with the real-time correction rate when the real-time deviation rate is between the first and second standard deviation rates, the accuracy of the preset adhesive application time is determined. If the real-time correction rate is less than or equal to the standard correction rate, it means that the preset adhesive application time is close to the actual time interval between adjacent adhesive applications, and no correction is needed. If the real-time correction rate is greater than the standard correction rate, it means that the preset adhesive application time differs significantly from the actual time interval between adjacent adhesive applications, and the preset adhesive application time needs to be adjusted according to the degree of difference between the real-time correction rate and the standard correction rate so that the preset adhesive application time gradually adapts to the actual situation, thereby improving the timeliness and accuracy of the adhesive application operation and the quality of adhesive dispensing.

[0098] Specifically, the control module is equipped with an initial storage temperature for the glue box. When the control module determines that the real-time glue dot area is greater than the standard glue dot area range, it adjusts the initial storage temperature according to the real-time glue dot area and the standard glue dot area range, and adjusts it to a corrected storage temperature.

[0099] Where Ts' = Ts × [1 - (Ms - Ma) / Ms], Ts' represents the calculated corrected storage temperature, Ts represents the set initial storage temperature of the glue box, Ms represents the obtained real-time glue dot area, and Ma represents the maximum value of the set standard glue dot area range.

[0100] In this embodiment, the initial storage temperature is set to the optimal storage temperature of the glue in the glue box. The setting value is related to the type of glue and the requirements of the dispensing and adding process. It should ensure that the glue has good fluidity and can flow smoothly to the impeller dispensing and adding position. At the same time, it should also ensure that the glue has a certain viscosity so that it does not flow out after the dispensing valve 101 is closed due to the glue being too thin.

[0101] By reducing the temperature inside the glue tank when the real-time glue dot area is determined to be larger than the standard glue dot area, the fluidity of the glue is reduced, making the glue outflow controllable and thus ensuring the accuracy of glue dispensing.

[0102] Specifically, the dispensing module 1 also includes a liquid level sensor 102 for detecting the real-time remaining glue amount in the glue tank. The control module is set with a preset remaining glue amount. When the real-time remaining glue amount is less than or equal to the preset remaining glue amount, the control module sends a glue shortage alarm to the external management terminal.

[0103] The preset remaining glue amount is 10%-15% of the total volume of the glue box, and should be selected according to the actual glue box specifications.

[0104] Specifically, the curing module 5 includes a curing lamp 501 for irradiating the dispensing position of the impeller to be balanced, and a detection sensor 502 for real-time detection of the curing lamp 501. The control module is configured with a standard decay rate. The control module can acquire the initial irradiation brightness and real-time irradiation brightness of the curing lamp 501 detected in real-time by the detection sensor 502, calculate the real-time decay rate based on the initial irradiation brightness and real-time irradiation brightness, and determine whether to correct the preset curing time based on the standard decay rate.

[0105] If the real-time decay rate is greater than the standard decay rate, the control module will not correct the preset curing time;

[0106] If the real-time decay rate is less than or equal to the standard decay rate, the control module corrects the preset curing time to a corrected curing time.

[0107] Where Tg' = Tg × [1 + (Vs - Vb) / Vs], Tg' represents the calculated corrected curing time, Tg represents the set preset curing time, Vs represents the calculated real-time decay rate, and Vb represents the set standard decay rate;

[0108] The real-time decay rate is equal to the percentage of the real-time illumination brightness relative to the initial illumination brightness;

[0109] In this embodiment, the standard attenuation rate is set to 90%, the wavelength of the curing lamp 501 is 365nm, and the preset curing time is set to 6s. It can be adapted and adjusted according to the actual specifications of the curing lamp 501, the single dispensing volume of the dispensing valve 101, and the requirements of the dispensing and adding task. It is only necessary to complete the curing of the glue added to the impeller to be balanced within the preset curing time.

[0110] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

[0111] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A control system for a dispensing and material addition mechanism, characterized in that, include, A dispensing module is used to dispense glue onto an impeller to be balanced. The dispensing module includes a glue tank equipped with a temperature control device, a dispensing valve for controlling the flow of glue from the glue tank, and a weight sensor for detecting the weight of the glue inside the glue tank. The glue tank is used to store glue at an initial storage temperature. The moving module includes an X-axis module disposed on the upper part of the support frame, a Z-axis module for moving along the direction of the X-axis module, and a lifting cylinder for driving the dispensing module to move along the Z-axis module. The dispensing module is connected to the Z-axis module, and the moving module is used to drive the dispensing module to move. The adhesive wiping module is mounted on the support frame of the movable module and is used to wipe away residual adhesive on the dispensing valve. An image acquisition module, which is connected to the Z-axis module, is used to acquire real-time dispensing images on the impeller to be balanced; A curing module, which is installed on the Z-axis module, is used to cure the adhesive with added material on the impeller to be balanced; The control module, which is connected to the dispensing module, the moving module, the wiping module, and the image acquisition module respectively, is used to determine whether to perform an intermediate wiping operation or adjust the initial storage temperature of the glue tank when the single dispensing difference of the dispensing valve is greater than the standard dispensing difference, based on the real-time glue dot area obtained from the real-time dispensing image. The control module can also calculate the real-time deviation rate and the real-time correction rate when performing an intermediate wiping operation, determine the real-time deviation rate based on the standard deviation rate, and determine whether to correct the preset wiping time based on the standard correction rate and the real-time correction rate. The control module is configured with a preset adhesive application time, a first standard deviation rate, and a second standard deviation rate. When performing an adhesive application operation midway, the control module can obtain the elapsed time between the previous adhesive application operation and the current time to obtain the current adhesive application time. It then calculates the ratio of the current adhesive application time to the preset adhesive application time to obtain the real-time deviation rate. The control module determines the real-time deviation rate based on the first standard deviation rate and the second standard deviation rate. If the real-time deviation rate is less than the first standard deviation rate, the control module will adjust the preset glue-wiping time according to the real-time deviation rate, and adjust it to the first corrected glue-wiping time. If the real-time deviation rate is between the first standard deviation rate and the second standard deviation rate, the control module compares the standard correction rate with the real-time correction rate to determine whether to adjust the preset adhesive application time. If the real-time deviation rate is greater than the second standard deviation rate, the control module will not adjust the preset adhesive application time. The control module is equipped with a preset calibration period and a standard calibration rate. When the real-time deviation rate is determined to be between the first standard deviation rate and the second standard deviation rate, the control module can calculate the ratio of the number of times the glue wiping operation is performed during the preset calibration period to the number of times the glue wiping operation is performed when the preset glue wiping time is reached, thus obtaining the real-time calibration rate. The control module then compares the standard calibration rate with the real-time calibration rate. If the real-time correction rate is less than or equal to the standard correction rate, the control module will not adjust the preset adhesive application time. If the real-time correction rate is greater than the standard correction rate, the control module will adjust the preset adhesive application time according to the real-time deviation rate and the real-time correction rate, and adjust it to the second corrected adhesive application time.

2. The dispensing and material addition mechanism control system according to claim 1, characterized in that, The control module is equipped with a standard dispensing volume and a standard dispensing difference for a single dispensing operation. After the dispensing valve completes one dispensing cycle, the control module can obtain the single dispensing volume in the glue tank through the weight sensor, calculate the single dispensing difference based on the standard dispensing volume and the single dispensing volume, and compare the single dispensing difference with the standard dispensing difference. If the difference in glue dispensing in a single application is less than or equal to the standard difference in glue dispensing, the control module will determine the real-time cumulative difference based on the standard cumulative difference to determine whether to perform a mid-process glue wiping operation. If the difference in glue dispensing volume in a single application is greater than the standard difference in glue dispensing volume, the control module compares the standard glue dispensing volume with the single glue dispensing volume to determine the glue dispensing status of the dispensing valve.

3. The dispensing and material addition mechanism control system according to claim 2, characterized in that, When the control module determines that the difference in glue dispensing volume in a single application is greater than the standard difference in glue dispensing volume, it compares the standard glue dispensing volume with the single application volume. If the amount of glue dispensed in a single operation is greater than the standard amount of glue dispensed, the control module will determine the real-time glue dot area based on the standard glue dot area range to determine whether to perform a mid-operation glue wiping operation. If the amount of glue dispensed in a single operation is less than the standard amount, the control module will control the moving module to move the dispensing valve to the wiping module to perform an intermediate wiping operation.

4. The dispensing and material addition mechanism control system according to claim 3, characterized in that, The control module is configured with a cumulative number of dispensing verifications and a standard cumulative difference. When the control module determines that the difference in dispensing volume for a single dispensing operation is less than or equal to the standard dispensing difference, it can calculate the real-time cumulative difference within the current dispensing time based on the set cumulative number of dispensing verifications, the standard dispensing volume, and the acquired dispensing volumes for each single operation. The real-time cumulative difference is then used to determine the correct value. If the real-time cumulative difference is less than or equal to the standard cumulative difference, the control module determines that the dispensing valve is qualified and does not perform the mid-process wiping operation. If the real-time cumulative difference is greater than the standard cumulative difference, the control module will control the moving module to move the dispensing valve to the wiping module to perform an intermediate wiping operation.

5. The dispensing and material addition mechanism control system according to claim 3, characterized in that, The control module is configured with a standard glue dot area range. When the control module determines that the amount of glue dispensed in a single operation exceeds the standard amount, it can acquire a real-time glue dispensing image through the image acquisition module, obtain the real-time glue dot area based on the real-time glue dispensing image, and determine the real-time glue dot area based on the standard glue dot area range. If the real-time glue dot area is within the standard glue dot area range, the control module will perform a shutdown check and detect the weight sensor. If the real-time glue dot area is not within the standard glue dot area range, the control module compares the real-time glue dot area with the standard glue dot area range. If the real-time glue dot area is smaller than the standard glue dot area range, the control module controls the moving module to move the dispensing valve to the wiping module to perform an intermediate wiping operation. If the real-time glue dot area is larger than the standard glue dot area range, the control module adjusts the initial storage temperature of the glue box.

6. The dispensing and additive control system according to claim 5, characterized in that, The control module is configured with an initial storage temperature for the glue box. When the control module determines that the real-time glue dot area is greater than the standard glue dot area range, it adjusts the initial storage temperature according to the real-time glue dot area and the standard glue dot area range, thus adjusting it to a corrected storage temperature.

7. The dispensing and material addition mechanism control system according to claim 1, characterized in that, The dispensing module also includes a liquid level sensor for detecting the real-time remaining amount of adhesive in the adhesive tank. The control module is equipped with a preset remaining amount of adhesive. When the real-time remaining amount of adhesive is less than or equal to the preset remaining amount of adhesive, the control module sends an adhesive shortage alarm to the external management terminal.

8. The dispensing and additive control system according to claim 1, characterized in that, The curing module includes a curing lamp for irradiating the dispensing position of the impeller to be balanced and a detection sensor for real-time detection of the curing lamp. The control module is set with a standard decay rate. The control module can obtain the initial irradiation brightness and real-time irradiation brightness of the curing lamp detected by the detection sensor in real time, calculate the real-time decay rate based on the initial irradiation brightness and real-time irradiation brightness, and determine the real-time decay rate based on the standard decay rate to determine whether to correct the preset curing time.

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