Gluing gram amount automatic adjusting and compensating method and device based on carbon fiber gluing process, computer device and storage medium

Abstract

The invention provides a gluing weight automatic adjusting and compensating method and device based on carbon fiber gluing, computer equipment and a storage medium. The method comprises the steps that a preset gram weight interval of carbon fiber gluing gram weight is set; providing a carbon fiber gluing machine, wherein the carbon fiber gluing machine is used for carrying out gluing operation on the carbon fibers; detecting the glue coating gram weight of the carbon fiber subjected to the glue coating operation in the current period; judging whether the carbon fiber gluing gram weight for gluing operation in the current period is within a preset gram weight interval or not; if the current carbon fiber gluing gram weight is out of the preset gram weight interval, a roller assembly gap of the carbon fiber gluing machine is controlled so as to adjust the gluing amount of the carbon fiber, and therefore manual sampling inspection is not needed, and the carbon fiber can be formed by presetting the total integral number sum of the composite coiled material of the carbon fiber needing to be formed and the resin and the volume fraction of the carbon fiber as a fixed value. According to the carbon fiber gluing gram weight in the current period, the gluing amount of the carbon fiber gluing machine is adjusted, and the resin content can be adjusted in the operation process of the gluing technology.

Description

Technical Field

[0001] This disclosure relates to the field of carbon fiber material preparation technology, and in particular to a method, equipment, computer equipment, and storage medium for automatic adjustment and compensation of coating weight based on carbon fiber coating process. Background Technology

[0002] Carbon fiber composites primarily involve bonding resin to carbon fiber fabric. The core manufacturing process for this bonding is the coating process. In this process, a roller assembly in a carbon fiber coating machine evenly coats a measured amount of resin onto the carbon fiber surface, forming a composite roll. Strict control of the resin content is crucial during the coating process. Excessive resin coating reduces the overall strength and stiffness of the carbon fiber fabric, making it brittle and heavy; conversely, insufficient resin coating makes the uncoated portions of the fabric prone to breakage and delamination under stress. Therefore, strict control of the resin content on the carbon fiber fabric surface is essential.

[0003] Because the resin content is extremely difficult to quantitatively control and detect during the coating process, traditional methods of controlling resin basis weight rely heavily on manual operation. This involves randomly sampling a section of the manufactured composite roll and analyzing the resin content (basis weight) to adjust the amount of resin applied to the carbon fiber. Existing technologies, such as Chinese patent CN117091983A, use laser thickness gauges to calculate the resin content of the carbon fibers before and after sizing, based on the length, width, thickness, and fiber density. However, when deviations are detected, a large quantity of material already produced in that batch is already substandard, resulting in a low product yield. Summary of the Invention

[0004] The purpose of this disclosure is to overcome the shortcomings of the prior art and provide a method, device, computer device, and storage medium for automatic adjustment and compensation of coating weight based on carbon fiber coating process, which can eliminate the need for manual sampling of resin volume fraction, detect coating weight during the coating process, and automatically compensate the coating weight according to the current carbon fiber coating amount.

[0005] The purpose of this disclosure is achieved through the following technical solution: An automatic adjustment and compensation method for coating weight based on carbon fiber coating process includes: Set the preset weight range for carbon fiber coating weight; Apply adhesive to the carbon fiber; The basis weight of the carbon fiber after the current coating operation is measured to obtain the current actual basis weight of the carbon fiber. Determine whether the current actual weight of the carbon fiber coated with adhesive is within the preset weight range; If not, compensate for the gap in the roller assembly of the carbon fiber coating module.

[0006] In one embodiment, the preset weight range has an upper limit value; otherwise, the gap of the roller assembly of the carbon fiber coating machine is compensated and adjusted, specifically including the following steps: Determine whether the current carbon fiber coating basis weight is greater than the upper limit of the basis weight range; If the current carbon fiber coating weight exceeds the upper limit of the weight range, control and reduce the gap of the roller assembly of the carbon fiber coating machine.

[0007] In one embodiment, if the current carbon fiber coating weight exceeds the upper limit of the weight range, the gap of the roller assembly of the carbon fiber coating machine is reduced, specifically including the following steps: Set the reduction compensation range value for a single adjustment gap; The gap between the roller components of the carbon fiber coating machine is controlled to decrease based on the compensation range value of the single adjustment gap.

[0008] In one embodiment, after the step of controlling the reduction of the gap of the roller assembly of the carbon fiber coating machine according to the reduction compensation range value of the single adjustment gap, if the current carbon fiber coating basis weight is greater than the upper limit value of the basis weight range, the step of controlling the reduction of the gap of the roller assembly of the carbon fiber coating machine further includes: The basis weight of the carbon fiber after the next coating operation is measured to obtain the actual basis weight of the carbon fiber in the next cycle. Determine whether the actual coating weight of the carbon fiber in the next cycle is within the preset weight range; If the actual coating weight of the carbon fiber in the next cycle exceeds the preset upper limit, repeat the above steps.

[0009] In one embodiment, the preset weight range also has a lower limit value for the weight range; otherwise, the gap of the roller assembly of the carbon fiber coating machine is compensated and adjusted, specifically including the following steps: Determine whether the current carbon fiber coating basis weight is less than the lower limit of the basis weight range; If the current carbon fiber coating weight is less than the lower limit of the weight range, control the increase of the gap between the roller components of the carbon fiber coating machine.

[0010] In one embodiment, if the current carbon fiber coating weight is greater than the lower limit of a preset weight range, the gap between the roller components of the carbon fiber coating machine is increased, specifically including the following steps: Set the increase compensation range value for a single adjustment gap; The gap between the roller components of the carbon fiber coating machine is increased based on the compensation range value of the single adjustment gap.

[0011] In one embodiment, after the step of controlling the increase of the gap of the roller assembly of the carbon fiber coating machine according to the increase compensation range value of the single adjustment gap, if the current carbon fiber coating basis weight is less than the lower limit value of the basis weight range, the step of controlling the increase of the gap of the roller assembly of the carbon fiber coating machine further includes: The basis weight of the carbon fiber after the next coating operation is measured to obtain the actual basis weight of the carbon fiber in the next cycle. Determine whether the actual coating weight of the carbon fiber in the next cycle is within the preset weight range; If the actual coating weight of the carbon fiber in the next cycle is less than the lower limit of the weight range, then repeat the above steps.

[0012] An automatic adjustment and compensation device for adhesive coating weight based on carbon fiber coating process, comprising: automatically adjusting and compensating the adhesive coating weight using the automatic adjustment and compensation method for adhesive coating weight based on carbon fiber coating process of any of the above embodiments, including: The preset weight range module is used to set the preset weight range of carbon fiber coating weight; Carbon fiber coating module, used for coating carbon fiber; The detection module is used to detect the weight of the carbon fiber coating after the current cycle coating operation, so as to obtain the current actual weight of the carbon fiber coating. The adhesive weight comparison module is used to determine whether the current actual adhesive weight of the carbon fiber is within a preset weight range; The gap compensation adjustment module is used to compensate and adjust the gap of the roller assembly of the carbon fiber coating module when the current actual coating weight of the carbon fiber is not within the preset weight range.

[0013] A computer device includes a memory and a processor, the memory storing a computer program, characterized in that the processor executes the computer program to implement the steps of the method described in any of the above embodiments.

[0014] A storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method described in any of the above embodiments.

[0015] Compared with the prior art, this disclosure has at least the following advantages: The aforementioned automatic adjustment and compensation method for adhesive coating weight based on carbon fiber coating process involves pre-setting the carbon fiber adhesive coating weight based on the volume fraction of the composite roll material formed by combining carbon fiber and resin, i.e., pre-setting a preset weight range for carbon fiber adhesive coating weight. Then, the weight of the composite roll material is measured, which is the sum of the volume fractions of carbon fiber and resin. Thus, by measuring the weight of the carbon fibers coated with resin in the current cycle, if the measured carbon fiber adhesive coating weight falls outside the preset weight range, the gap between the roller components in the carbon fiber coating machine is adjusted to control the amount of adhesive applied.

[0016] Compared with existing technologies, the automatic adjustment and compensation method for adhesive coating weight based on carbon fiber coating process disclosed herein eliminates the need for manual sampling inspection of composite rolls, improving the convenience of inspection. By pre-setting the total volume fraction of the carbon fiber and resin composite roll to be formed, and a fixed carbon fiber volume fraction, the adhesive coating weight of the carbon fiber coating machine is adjusted by detecting the current cycle's adhesive coating weight. This allows for resin content adjustment during the coating process, eliminating the need for separate sampling and analysis of resin content in the finished composite roll, thereby reducing lag and enabling timely adjustment of the adhesive coating weight of the carbon fiber coating machine. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart illustrating an embodiment of the automatic adjustment and compensation method for adhesive coating weight based on carbon fiber coating process according to an embodiment of the present invention. Figure 2 This is a schematic diagram of an automatic adjustment and compensation device for coating weight based on carbon fiber coating process according to an embodiment of the present invention; Figure 3 for Figure 2 Another perspective: a schematic diagram of an automatic adjustment and compensation device for coating weight based on carbon fiber coating process. Figure 4 for Figure 3 A schematic diagram of the prepreg mechanism in another embodiment; Figure reference numeral: Automatic adjustment and compensation device for coating weight based on carbon fiber coating process 10 100 carbon fiber coating machine; 110 roller assembly; 111 roller frame; 112 first roller; 113 second roller Weight testing machine 200; support frame 210; moving testing assembly 220; Prepreg mechanism 300; bracket 310; first pressure roller 320; second pressure roller 330; lifting drive assembly 340; first lifting drive component 341; second lifting drive component 342; rotation drive assembly 350; rotation drive assembly 350; first rotating wheel 351; second rotating wheel 352; rotary motor 354. Detailed Implementation

[0019] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can 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 complete understanding of the disclosure.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments: Please refer to 1. This invention provides an automatic adjustment and compensation method for adhesive weight based on carbon fiber coating process, using a carbon fiber coating machine. The automatic adjustment and compensation method for adhesive weight includes some or all of the following: S100, Set the preset weight range for carbon fiber coating weight; In this embodiment, the carbon fiber coating weight is the sum of the volume fractions of carbon fiber and resin when the carbon fiber is coated using a carbon fiber coating machine. Therefore, the preset weight range for carbon fiber coating is set as a preset weight range for the sum of the volume fractions of carbon fiber and resin, that is, a range for the sum of the volume fractions of carbon fiber and resin is set based on the volume fraction of the composite roll. It should be noted that setting the preset weight range for carbon fiber coating is based on the requirements of the equipment or materials used in the composite material manufacturing process, thereby setting the desired total volume fraction of carbon fiber and resin in the composite material.

[0023] S200, Apply adhesive to the carbon fiber; In this embodiment, the coating operation is to apply adhesive to the carbon fiber. A carbon fiber coating machine is provided to apply adhesive to the carbon fiber, so that the carbon fiber and resin are combined to form a composite roll material.

[0024] S300. Detect the basis weight of the carbon fiber after the current cycle of coating operation to obtain the current actual basis weight of the carbon fiber. In this embodiment, the basis weight of the carbon fiber coated during the current cycle is detected. That is, after the carbon fiber coating process has been completed by the current carbon fiber coating machine, the carbon fiber is input into the basis weight detection machine to detect the basis weight of the carbon fiber coated after the coating process. This allows the current basis weight of the carbon fiber coated after the coating process to be compared with a preset basis weight value, thereby determining whether the resin content of the carbon fiber after the coating process in the current cycle meets the standard for forming composite roll material.

[0025] S400: Determine whether the current actual weight of the carbon fiber coated with adhesive is within a preset weight range; In this embodiment, the control system sets the total volume percentage of the composite material, comprising the volume percentage of carbon fiber and the volume percentage of resin, based on the desired volume fraction of the composite material. Since the volume fraction of carbon fiber is the same as the volume fraction of carbon fiber currently being coated, it is a fixed value. Therefore, determining whether the carbon fiber coating weight in the current cycle is within the preset weight range is achieved by detecting whether the total volume percentage of the composite material falls within the preset weight range.

[0026] It should be noted that by detecting the carbon fiber basis weight, the total volume fraction of the composite material can be determined, which is the sum of the volume fractions of carbon fiber and resin. Since the volume fraction of carbon fiber is a constant, the volume fraction of resin coated on the carbon fiber by the carbon fiber coating machine in the current cycle can be obtained by subtracting the total volume fraction of the composite material from the volume fraction of carbon fiber. S500, If not, compensate for the gap of the roller assembly of the carbon fiber coating module. In this embodiment, if the current carbon fiber coating weight is outside the preset weight range, the gap between the roller assemblies of the carbon fiber coating machine is controlled to adjust the amount of adhesive applied to the carbon fiber. Specifically, the weight analyzer detects the sum of the volume fractions of carbon fiber and resin. If this sum is outside the total volume fraction of the composite material, the roller assemblies of the carbon fiber coating machine need to be adjusted to control the gap between them, thereby controlling the amount of adhesive applied to the carbon fiber. If the sum of the volume fractions of carbon fiber and resin detected by the weight analyzer is within the preset weight range, the current gap value of the roller assemblies of the carbon fiber coating machine is maintained, i.e., the current amount of adhesive is maintained for coating the carbon fiber.

[0027] The aforementioned automatic adjustment and compensation method for adhesive coating weight based on carbon fiber coating process involves pre-setting the carbon fiber adhesive coating weight based on the volume fraction of the composite roll material formed by combining carbon fiber and resin, i.e., pre-setting a preset weight range for carbon fiber adhesive coating weight. Then, the weight of the composite roll material is measured, which is the sum of the volume fractions of carbon fiber and resin. Thus, by measuring the weight of the carbon fibers coated with resin in the current cycle, if the measured carbon fiber adhesive coating weight falls outside the preset weight range, the gap between the roller components in the carbon fiber coating machine is adjusted to control the amount of adhesive applied.

[0028] Compared with existing technologies, the automatic adjustment and compensation method for adhesive coating weight based on carbon fiber coating process disclosed herein eliminates the need for manual sampling inspection of composite rolls, thus improving convenience. By pre-setting the total volume fraction of the carbon fiber and resin composite roll to be formed, and a fixed carbon fiber volume fraction, the adhesive coating weight of the carbon fiber coating machine is adjusted by detecting the current cycle's adhesive coating weight. This allows for resin content adjustment during the coating process, eliminating the need for separate sampling and analysis of resin content in the finished composite roll, thereby reducing lag and enabling timely adjustment of the adhesive coating weight of the carbon fiber coating machine.

[0029] In one embodiment, the preset weight range has an upper limit value; otherwise, the gap of the roller assembly of the carbon fiber coating machine is compensated and adjusted, specifically including the following steps: Determine whether the current carbon fiber coating basis weight is greater than the upper limit of the basis weight range; If the current carbon fiber coating weight exceeds the upper limit of the weight range, control and reduce the gap of the roller assembly of the carbon fiber coating machine.

[0030] If the current carbon fiber coating weight exceeds the upper limit of the weight range, the gap between the roller components of the carbon fiber coating machine is reduced to decrease the amount of adhesive applied to the carbon fiber.

[0031] It should be noted that the basis weight detection machine detects and determines the basis weight of the current carbon fiber coating. After confirming that the current basis weight of the carbon fiber coating is greater than the upper limit of the basis weight range, the determination information is fed back to the gap compensation adjustment module. The gap compensation adjustment module will control the roller assembly on the carbon fiber coating machine to operate, so that the gap of the roller assembly on the carbon fiber coating machine is reduced, thereby reducing the amount of glue applied to the carbon fiber by the carbon fiber coating machine.

[0032] In this embodiment, a preset weight range (g / m³) is defined. 2 The range of values ​​is (200, 350). When the basis weight of the carbon fiber coated carbon fiber detected by the basis weight testing machine is greater than 350 g / m³, the range is calculated as follows: 2 If the weight exceeds the preset upper limit, the gap between the rollers of the carbon fiber coating machine is reduced to decrease the amount of adhesive applied to the carbon fiber.

[0033] In one embodiment, if the current carbon fiber coating weight exceeds the upper limit of the weight range, the gap of the roller assembly of the carbon fiber coating machine is reduced. This specifically includes the following steps: Set the reduction compensation range value for a single adjustment gap; Based on the compensation range value of the single adjustment gap reduction, the gap of the roller assembly of the carbon fiber coating machine is controlled to be reduced in order to reduce the amount of adhesive applied to the carbon fiber fabric.

[0034] In this embodiment, when the basis weight of the carbon fiber coated by the carbon fiber coating machine exceeds the upper limit of the basis weight range, the amount of adhesive applied to the carbon fiber fabric needs to be reduced. Since adjusting the gap of the roller assembly requires outputting the current carbon fiber from the carbon fiber coating machine and then inputting it back into the basis weight detector, a time difference exists. To avoid overshooting of the gap value in a single adjustment, a compensation range for reducing the gap in a single adjustment is set to prevent oscillation during roller assembly adjustment and to prevent subsequent gap adjustment corrections.

[0035] Furthermore, the control system employs a PID control algorithm to adjust the gap between the roller components.

[0036] Specifically, a deviation function is set, which is the difference between the preset weight range and the amount of adhesive applied to the carbon fiber in the current cycle. in This is a function representing the deviation between the current preset weight range and the amount of adhesive applied to the carbon fiber measured in the current cycle. For the preset weight range, This represents the weight value of the carbon fiber adhesive coating measured in the current cycle. Thus, a PID model is established. in, This is the output of the PID model, representing the theoretical gap adjustment of the roller assembly of the carbon fiber coating machine controlled by the control system, and also the compensation range value for the reduction of the gap in a single adjustment. Because the gap decreases, i.e. . For the proportion term, This is the proportional gain coefficient, which is used to specifically adjust the gap value of the roller assembly. For integration, This is the integral gain coefficient. The integral of the historical deviation of carbon fiber weight accumulated from time 0 to time t is used. In this embodiment, t is the time of the current period. The steady-state error is eliminated by the integral term, so as to achieve accurate control of the PID model. For differential terms, The differential gain coefficient, The carbon fiber coating weight at time t represents the rate of change of the carbon fiber coating weight during the current period. In this embodiment, t is the time of the current period. Overshoot is suppressed and oscillations are reduced by using a differential term, thus achieving PID model stability. In this embodiment, when... When the absolute value of the output value is greater than the compensation interval value for a single adjustment gap reduction, the adjustment is performed at the upper limit of the compensation interval value for a single adjustment gap reduction. In this embodiment, the compensation interval value (µm) for a single adjustment gap reduction is (0, 10).

[0037] In one embodiment, after the step of controlling the reduction of the gap of the roller assembly of the carbon fiber coating machine according to the reduction compensation range value of the single adjustment gap, if the current carbon fiber coating basis weight is greater than the upper limit value of the basis weight range, the step of controlling the reduction of the gap of the roller assembly of the carbon fiber coating machine further includes: The basis weight of the carbon fiber after the next coating operation is measured to obtain the actual basis weight of the carbon fiber in the next cycle. Determine whether the actual coating weight of the carbon fiber in the next cycle is within the preset weight range; If the actual coating weight of the carbon fiber in the next cycle exceeds the preset upper limit, repeat the above steps.

[0038] In this embodiment, after the gap of the roller assembly is reduced according to the compensation range value of the single adjustment gap, the carbon fiber coating machine will coat the carbon fiber input into the carbon fiber coating machine in the next cycle. The carbon fiber of the next cycle is output by the carbon fiber coating machine and input to the weight detection machine. The weight detection machine detects the weight of the coated carbon fiber. When the weight of the coated carbon fiber is within the preset weight range, the gap value adjustment of the roller assembly of the carbon fiber coating machine is stopped to maintain the weight of the coated carbon fiber within the preset weight range.

[0039] It should be noted that if the carbon fiber coating weight is still greater than the preset weight value, the above steps should be repeated to continue to fine-tune the gap of the roller assembly so that after the gap of the roller assembly is adjusted, the carbon fiber coating weight can be within the preset weight range after the carbon fiber coating operation is performed.

[0040] In one embodiment, the preset weight range also has a lower limit value for the weight range; otherwise, the gap of the roller assembly of the carbon fiber coating machine is compensated and adjusted, specifically including the following steps: Determine whether the current carbon fiber coating basis weight is less than the lower limit of the basis weight range; If the current carbon fiber coating weight is less than the lower limit of the weight range, control the increase of the gap between the roller components of the carbon fiber coating machine.

[0041] It should be noted that the basis weight detection machine measures and determines the basis weight of the current carbon fiber coating. Once it confirms that the current basis weight of the carbon fiber coating is greater than the upper limit of the basis weight range, it feeds the determination information back to the gap compensation adjustment module. The gap compensation adjustment module then controls the operation of the roller assembly on the carbon fiber coating machine, increasing the gap between the rollers to increase the amount of adhesive applied to the carbon fiber. In this embodiment, a preset weight range (g / m³) is defined. 2 The range of values ​​is (200, 350). When the basis weight of the carbon fiber coated with adhesive is less than 200 g / m², the basis weight is determined by the weight measuring machine. 2 If the weight is less than the preset lower limit, the gap between the rollers of the carbon fiber coating machine is increased to increase the amount of adhesive applied to the carbon fiber.

[0042] In one embodiment, if the current carbon fiber coating weight is greater than the lower limit of a preset weight range, the gap between the roller components of the carbon fiber coating machine is increased, specifically including the following steps: Set the increase compensation range value for a single adjustment gap; The gap between the roller components of the carbon fiber coating machine is increased based on the compensation range value of the single adjustment gap.

[0043] In this embodiment, when the basis weight of the carbon fiber coated by the carbon fiber coating machine is less than the upper limit of the basis weight range, the amount of adhesive applied to the carbon fiber fabric needs to be increased. Since adjusting the gap of the roller assembly requires outputting the current carbon fiber from the carbon fiber coating machine and then inputting it back into the basis weight detector, a time difference exists. To avoid overshooting of the gap value in a single adjustment, a compensation range for increasing the gap in a single adjustment is set to prevent oscillation during roller assembly adjustment and to prevent subsequent gap adjustment corrections.

[0044] Furthermore, the control system employs a PID control algorithm to adjust the gap between the roller components.

[0045] Specifically, a deviation function is set, which is the difference between the preset weight range and the amount of adhesive applied to the carbon fiber in the current cycle. in This is a function representing the deviation between the current preset weight range and the amount of adhesive applied to the carbon fiber measured in the current cycle. For the preset weight range, This represents the weight value of the carbon fiber adhesive coating measured in the current cycle. Thus, a PID model is established. in, This is the output of the PID model, representing the theoretical gap adjustment of the roller assembly of the carbon fiber coating machine controlled by the control system, and also the compensation range value for a single gap increase. Due to the increase in gap, i.e. . For the proportion term, This is the proportional gain coefficient, which is used to specifically adjust the gap value of the roller assembly. For integration, This is the integral gain coefficient. The integral of the historical deviation of carbon fiber weight accumulated from time 0 to time t is used. In this embodiment, t is the time of the current period. The steady-state error is eliminated by the integral term, so as to achieve accurate control of the PID model. For differential terms, The differential gain coefficient, The carbon fiber coating weight at time t represents the rate of change of the carbon fiber coating weight during the current period. In this embodiment, t is the time of the current period. Overshoot is suppressed and oscillations are reduced by using a differential term, thus achieving PID model stability. In this embodiment, when... When the absolute value of the output value is greater than the compensation interval value for a single adjustment gap increase, the adjustment is performed at the upper limit of the compensation interval value for a single adjustment gap increase. In this embodiment, the compensation interval value (µm) for a single adjustment gap increase is (0, 10).

[0046] In one embodiment, after the step of controlling the increase of the gap of the roller assembly of the carbon fiber coating machine according to the increase compensation range value of the single adjustment gap, if the current carbon fiber coating basis weight is less than the lower limit value of the basis weight range, the step of controlling the increase of the gap of the roller assembly of the carbon fiber coating machine further includes: The basis weight of the carbon fiber after the next coating operation is measured to obtain the actual basis weight of the carbon fiber in the next cycle. Determine whether the actual coating weight of the carbon fiber in the next cycle is within the preset weight range; If the actual coating weight of the carbon fiber in the next cycle is less than the lower limit of the weight range, the above steps are repeated. In this embodiment, after increasing the gap of the roller assembly according to the compensation range value of the single adjustment gap, the carbon fiber coating machine will coat the carbon fiber input into the carbon fiber coating machine in the next cycle. The carbon fiber of the next cycle is output from the carbon fiber coating machine and input to the weight detection machine. The weight detection machine detects the coating weight of the carbon fiber. When the coating weight of the carbon fiber is within the preset weight range, the gap adjustment of the roller assembly of the carbon fiber coating machine is stopped to maintain the coating weight of the carbon fiber within the preset weight range.

[0047] It should be noted that if the carbon fiber coating weight is still less than the preset weight value, the above steps should be repeated to continue to fine-tune the gap of the roller assembly so that after the gap of the roller assembly is adjusted, the carbon fiber coating weight can be within the preset weight range after the carbon fiber is coated.

[0048] This application also provides an automatic adjustment and compensation device 10 for the coating weight based on carbon fiber coating process, which automatically adjusts and compensates the coating weight using the automatic adjustment and compensation method for the coating weight based on carbon fiber coating process of any of the above embodiments, including: The preset weight range module is used to set the preset weight range of carbon fiber coating weight; Carbon fiber coating module, used for coating carbon fiber; The detection module is used to detect the weight of the carbon fiber coating after the current cycle coating operation, so as to obtain the current actual weight of the carbon fiber coating. The adhesive weight comparison module is used to determine whether the current actual adhesive weight of the carbon fiber is within a preset weight range; The gap compensation adjustment module is used to compensate and adjust the gap of the roller assembly of the carbon fiber coating module when the current actual coating weight of the carbon fiber is not within the preset weight range.

[0049] Furthermore, the preset weight range module can set a preset weight range for the carbon fiber coating weight. After the detection module detects the current carbon fiber coating weight, the current carbon fiber coating weight can be judged and compared with the preset weight range.

[0050] like Figure 2 and 3 As shown, the carbon fiber coating module further includes a carbon fiber coating machine 100, which includes a roller assembly 110. The roller assembly 110 can adjust the output of the PID model from the gap compensation adjustment module according to the input of the PID model. The gap of the roller assembly 110 is increased or decreased by adjusting the gap. In this embodiment, when the roller assembly 110 is operated, the gap of the roller assembly 110 is increased according to the increase compensation range value of the single adjustment gap; and the gap of the roller assembly 110 is decreased according to the decrease compensation range value of the single adjustment gap.

[0051] Further, the roller assembly 110 includes a roller frame 111, a first roller 112, a second roller 113, and a gap adjustment mechanism (not shown). The first roller 112 and the second roller 113 are rotatably connected to the gap adjustment mechanism, which is mounted on the roller frame 111. The gap adjustment mechanism is used to adjust the gap between the first roller 112 and the second roller 113. Specifically, the gap adjustment mechanism outputs the PID model value from the gap compensation adjustment module. The gap between the first roller 112 and the second roller 113 can be adjusted to increase or decrease. In this embodiment, the gap adjustment mechanism adopts a lead screw slide module, which is existing technology and will not be described in detail here. In this embodiment, the first roller 112 and the second roller 113 are horizontally arranged relative to the ground. In another embodiment, the first roller 112 and the second roller 113 may also be vertically arranged relative to the ground.

[0052] like Figure 4 As shown, the automatic coating weight adjustment and compensation device 10 based on the carbon fiber coating process further includes a prepreg mechanism 300, which includes: The first pressure roller 320 is rotatably connected to the bracket 310; The second pressure roller 330 is located above the first pressure roller 330 and is slidably connected to the bracket 310; The lifting drive assembly 340 includes a first lifting drive component 341 and a second lifting drive component 342. The first lifting drive component 341 is disposed on one end of the bracket 310, and the driving end of the first lifting drive component 341 is connected to the first end of the second pressure roller 330. The second lifting drive component 342 is disposed on the other end of the bracket 310, and the driving end of the second lifting drive component 342 is connected to the second end of the second pressure roller 330. A rotary drive assembly 350 includes a first rotating wheel 351, a second rotating wheel 352, a power transmission wheel set 353, and a rotary motor 354. The first rotating wheel 351 is disposed on the first end of the first pressure roller 320, the second rotating wheel 352 is disposed on the first end of the second pressure roller 320, the power transmission wheel set 353 is disposed on the bracket 310 and is connected to the first rotating wheel 351 and the second rotating wheel 352 in a driving connection, and the drive end of the rotary motor 354 is connected to the first rotating wheel 351 in a driving connection.

[0053] Specifically, the rotary motor 354 drives the first rotating wheel 351 to rotate via a transmission chain, causing the first pressure roller to rotate. Simultaneously, the first rotating wheel 351 transmits power to the power transmission wheel set 353, which drives the second rotating wheel 352 to rotate the second pressure roller 330. In this embodiment, the first lifting drive component 341 and the second lifting drive component 342 respectively drive the second pressure roller to rise and fall, thereby adjusting the gap between the first pressure roller 320 and the second pressure roller 330, thus enabling adjustment of the prepreg material applied to the carbon fiber by the prepreg mechanism.

[0054] Furthermore, the detection module is used to detect the basis weight of the carbon fiber coating during the current coating operation. The detection module includes a basis weight detector 200, which is located adjacent to the carbon fiber coating machine 100. The input end of the basis weight detector 200 is connected to the output end of the carbon fiber coating machine 100. The basis weight detector 200 receives the carbon fiber output from the carbon fiber coating machine 100, detects the basis weight of the current carbon fiber coating, and feeds back the basis weight result to the basis weight comparison module for comparison with a preset basis weight range. In this embodiment, the basis weight detector 200 is an NDC detector, which uses infrared technology to detect the basis weight of the carbon fiber coating.

[0055] like Figure 2 As shown, the weight detection machine 200 further includes a support 210 and a movable detection component 220, wherein the movable detection component 220 is slidably connected to the support 210. Specifically, the moving direction of the movable detection component is perpendicular to the input direction of the carbon fiber input weight detection machine 200.

[0056] It should be noted that during the adhesive coating process, the moving detection component 220 reciprocates on the support 210 in a direction perpendicular to the input direction of the carbon fiber input weight detection machine 200. When the carbon fiber is input into the weight detection machine 200, the component can perform a complete adhesive coating weight detection on the portion of carbon fiber input into the weight detection machine 200, and feed back the current carbon fiber adhesive coating weight result to the adhesive coating weight comparison module for comparison with a preset weight range. In this embodiment, the support 210 is provided with a lead screw slide (not shown in the figure), and the moving detection component 220 is fixed on the lead screw slide. Thus, the moving detection component 220 can slide relative to the support 210 by being driven by the lead screw slide. It should be noted that the moving detection component 220 is prior art and will not be described in detail here.

[0057] Furthermore, a servo motor (not shown) is mounted on the bracket 210, and the drive end of the servo motor is connected to the lead screw slide. Thus, the servo motor drives the lead screw slide, enabling the motion detection component to slide relative to the bracket 210.

[0058] Furthermore, the coating weight comparison module receives the current carbon fiber coating weight input by the detection module and compares the current carbon fiber coating weight with the preset weight range. If the carbon fiber coating weight is not within the preset weight range, the coating weight comparison module will simultaneously feed back the judgment result to the gap compensation adjustment module, and send a command to the carbon fiber coating machine 100 through the gap compensation adjustment module to drive the roller assembly 110 to adjust the gap.

[0059] Furthermore, the gap compensation adjustment module can receive the judgment result of the glue coating weight comparison module. According to the judgment result, if the current carbon fiber glue coating weight is not within the preset weight range, it sends a command to make the gap of the roller assembly 110 compensate and adjust, so as to adjust the glue coating amount of the carbon fiber glue coating machine 100.

[0060] This disclosure also provides a computer device, including a memory and a processor. The memory stores a computer program, and when the processor executes the computer program, it implements the method steps of the automatic adjustment and compensation method for coating weight based on carbon fiber coating process in the above embodiments.

[0061] This disclosure also provides a storage medium storing a computer program, characterized in that, when the computer program is executed by a processor, it implements the method steps of the automatic adjustment and compensation method for coating weight based on carbon fiber coating process in the above embodiments.

[0062] Those skilled in the art will understand that all or part of the processes in the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile memory readable storage medium. When the executable program runs, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, or optical storage, etc. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc.

[0063] Compared with the prior art, this disclosure has at least the following advantages: 1. The above-mentioned automatic adjustment and compensation method for the coating weight based on the carbon fiber coating process involves setting the carbon fiber coating weight in advance based on the volume fraction of the composite roll material formed by combining carbon fiber and resin, i.e., setting a preset weight range for the carbon fiber coating weight. Then, the weight of the composite roll material is detected, which is the sum of the volume fractions of carbon fiber and resin. Thus, by detecting the weight of the carbon fiber coated with resin in the current cycle, if the detected carbon fiber coating weight is outside the preset weight range, the gap between the roller components in the carbon fiber coating machine is adjusted to control the coating amount.

[0064] 2. Compared with existing technologies, the automatic adjustment and compensation method for adhesive coating weight based on carbon fiber coating process disclosed in this invention eliminates the need for manual sampling inspection of composite rolls, thus improving convenience. By pre-setting the total volume fraction of the carbon fiber and resin composite roll to be formed, and a fixed carbon fiber volume fraction, the adhesive coating weight of the carbon fiber coating machine is adjusted by detecting the current cycle's adhesive coating weight. This allows for resin content adjustment during the coating process, eliminating the need for separate sampling and analysis of resin content in the finished composite roll, thereby reducing lag and enabling timely adjustment of the adhesive coating weight of the carbon fiber coating machine.

[0065] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A method for automatically adjusting and compensating the glue coating weight based on the carbon fiber coating process, characterized in that, include: Set the preset weight range for carbon fiber coating weight; Apply adhesive to the carbon fiber; The basis weight of the carbon fiber after the current coating operation is measured to obtain the current actual basis weight of the carbon fiber. Determine whether the current actual weight of the carbon fiber coated with adhesive is within the preset weight range; If not, compensate for the gap in the roller assembly of the carbon fiber coating module.

2. The automatic adjustment and compensation method for coating weight based on carbon fiber coating process according to claim 1, characterized in that, The preset weight range has an upper limit; otherwise, the gap of the roller assembly of the carbon fiber coating machine is compensated and adjusted, specifically including the following steps: Determine whether the current carbon fiber coating basis weight is greater than the upper limit of the basis weight range; If the current carbon fiber coating weight exceeds the upper limit of the weight range, control and reduce the gap of the roller assembly of the carbon fiber coating machine.

3. The automatic adjustment and compensation method for coating weight based on carbon fiber coating process according to claim 2, characterized in that, If the current carbon fiber coating basis weight exceeds the upper limit of the basis weight range, control and reduce the gap of the roller assembly of the carbon fiber coating machine, specifically including the following steps: Set the reduction compensation range value for a single adjustment gap; The gap between the roller components of the carbon fiber coating machine is controlled to decrease based on the compensation range value of the single adjustment gap.

4. The automatic adjustment and compensation method for coating weight based on carbon fiber coating process according to claim 3, characterized in that, After controlling the reduction of the gap of the roller assembly of the carbon fiber coating machine according to the reduction compensation range value of the single adjustment gap, if the current carbon fiber coating basis weight is greater than the upper limit value of the basis weight range, the step of controlling the reduction of the gap of the roller assembly of the carbon fiber coating machine further includes: The basis weight of the carbon fiber after the next coating operation is measured to obtain the actual basis weight of the carbon fiber in the next cycle. Determine whether the actual coating weight of the carbon fiber in the next cycle is within the preset weight range; If the actual coating weight of the carbon fiber in the next cycle exceeds the preset upper limit, repeat the above steps.

5. The automatic adjustment and compensation method for coating weight based on carbon fiber coating process according to claim 1, characterized in that, The preset weight range also has a lower limit value; otherwise, the gap of the roller assembly of the carbon fiber coating machine is compensated and adjusted, specifically including the following steps: Determine whether the current carbon fiber coating basis weight is less than the lower limit of the basis weight range; If the current carbon fiber coating weight is less than the lower limit of the weight range, control the increase of the gap between the roller components of the carbon fiber coating machine.

6. The automatic adjustment and compensation method for coating weight based on carbon fiber coating process according to claim 5, characterized in that, If the current carbon fiber coating weight is greater than the lower limit of the preset weight range, the gap between the roller components of the carbon fiber coating machine will be increased. This includes the following steps: Set the increase compensation range value for a single adjustment gap; The gap between the roller components of the carbon fiber coating machine is increased based on the compensation range value of the single adjustment gap.

7. The automatic adjustment and compensation method for coating weight based on carbon fiber coating process according to claim 6, characterized in that, After controlling the increase of the gap in the roller assembly of the carbon fiber coating machine according to the compensation range value of the single adjustment gap, if the current carbon fiber coating basis weight is less than the lower limit of the basis weight range, the step of controlling the increase of the gap in the roller assembly of the carbon fiber coating machine further includes: The basis weight of the carbon fiber after the next coating operation is measured to obtain the actual basis weight of the carbon fiber in the next cycle. Determine whether the actual coating weight of the carbon fiber in the next cycle is within the preset weight range; If the actual coating weight of the carbon fiber in the next cycle is less than the lower limit of the weight range, then repeat the above steps.

8. An automatic adjustment and compensation device for coating weight based on carbon fiber coating process, characterized in that, The automatic adjustment and compensation method for coating weight based on carbon fiber coating process according to any one of claims 1 to 7 is used to automatically adjust and compensate the coating weight, including: The preset weight range module is used to set the weight of the carbon fiber coating. Carbon fiber coating module, used for coating carbon fiber; The detection module is used to detect the glue weight of the carbon fiber after the current cycle of glue application to obtain the current actual glue weight of the carbon fiber. The adhesive weight comparison module is used to determine whether the current actual adhesive weight of the carbon fiber is within a preset weight range; The gap compensation adjustment module is used to compensate and adjust the gap of the roller assembly of the carbon fiber coating module when the current actual coating weight of the carbon fiber is not within the preset weight range.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 7.

10. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 7.

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