Glue production feeding device and method thereof

Abstract

This invention discloses an adhesive production feeding device and method, relating to the technical field of adhesive production equipment. The adhesive production feeding device includes a frame, a main material channel, a bypass multi-component injection unit, a dynamic mixing cylinder for mixing materials, a feeding conveying pipe, a multi-level sensor feedback system, and an intelligent controller. Through the multi-level feedback adjustment design of the multi-level sensor feedback system and the intelligent controller, this adhesive production feeding device achieves intelligent control of the entire process and multiple parameters of adhesive production, from the conveying of main materials to the final mixture. The intelligent controller dynamically sets and corrects additive feeding parameters based on the main material status in real time, and can perform global linkage compensation adjustment based on the component analysis results of the final mixture. This design effectively overcomes the formulation deviation problems caused by material characteristic fluctuations, uneven mixing, or equipment drift in traditional solutions.

Description

Technical Field

[0001] This invention relates to the field of adhesive production equipment technology, specifically to an adhesive production feeding device and method. Background Technology

[0002] In the continuous production process of fine chemical products such as adhesives and glues, precise material feeding can ensure the stability of the final product's performance and the consistency of its quality.

[0003] Existing production feeding devices typically combine a main material channel with several additive injection pipelines. Formula feeding is achieved by pre-setting pumping parameters. Some more advanced systems monitor the main material flow rate online and adjust the additive injection amount accordingly using feedforward proportional control, or install flow meters on each branch for individual closed-loop control. However, these existing technical solutions still have the following problems: First, the system does not adequately consider the changes in the physical properties of the main material itself (such as viscosity fluctuations), which affects its subsequent mixing and reaction efficiency with additives. Feedforward adjustment based solely on flow rate cannot respond to this. Furthermore, after injection, the final mixing uniformity and precise proportion of each component lack real-time, direct online verification methods, usually relying on subsequent offline sampling and testing, which suffers from feedback lag. This makes it impossible to immediately detect and correct formula deviations caused by equipment drift, minor changes in material properties, or uneven mixing during production. Therefore, this leads to inconsistent quality across multiple batches of finished products. To address the shortcomings of existing technologies, this invention provides an adhesive production feeding device and method to solve the above problems. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a glue production feeding device and method. Through a multi-level sensor feedback system and a multi-level feedback adjustment design of an intelligent controller, it achieves intelligent control of the entire glue production process, from the main material transportation to the final mixture. The intelligent controller dynamically sets and corrects the additive feeding parameters based on the main material status in real time, and can perform global linkage compensation adjustment based on the composition analysis results of the final mixture. This design effectively overcomes the formulation deviation problems caused by material characteristic fluctuations, uneven mixing, or equipment drift in traditional solutions, improves feeding accuracy and product batch stability, and realizes an upgrade from simple proportional feeding to precise quality control on demand.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a glue production feeding device, comprising a frame, a main material channel for conveying the main material, a bypass multi-component injection unit for injecting at least one additive, a dynamic mixing cylinder for mixing materials, and a feeding and conveying pipe; further comprising: The multi-level sensor feedback system includes a primary sensor group for monitoring the material status of the main material channel, a secondary sensor group for monitoring the feeding status of the bypass multi-component injection unit, and a tertiary sensor group for monitoring the mixed material status in the feeding and conveying pipe. The intelligent controller is electrically connected to the main material channel, the bypass multi-component injection unit, the dynamic mixing cylinder, and the multi-level sensor feedback system, respectively. The intelligent controller is configured to: set the initial feeding parameters of the bypass multi-component injection unit based on the real-time data of the primary sensor group; adjust the bypass multi-component injection unit in real time based on the feedback data of the secondary sensor group; and adjust the main material channel and / or the bypass multi-component injection unit in conjunction with the feedback data of the tertiary sensor group.

[0006] Preferably, the dynamic mixing cylinder is provided with a stirring unit and a heater; the stirring unit includes a drive motor and a stirring rod driven by the drive motor; the stirring rod is provided with a spiral plate, and the spiral plate is provided with a swirling guide plate for turbulence within the spiral spacing of the spiral plate.

[0007] Preferably, the primary sensor group includes at least a first flow meter for detecting the flow rate of the main material and an online viscometer for detecting the viscosity of the main material; the secondary sensor group is set for each bypass material channel of the bypass multi-component injection unit and includes at least a second flow meter for detecting the flow rate of the corresponding additive and a pressure sensor for monitoring the pipeline pressure; the tertiary sensor group includes at least a spectral analysis probe for analyzing the composition of the mixture and a temperature sensor for detecting the temperature of the mixture.

[0008] Preferably, the bypass multi-component injection unit includes at least one bypass material channel, and each bypass material channel is equipped with a metering pump; the main material channel is equipped with a flow regulating valve.

[0009] Preferably, the intelligent controller is further configured to execute the following control logic: when the spectral analysis probe detects that the concentration deviation of a certain additive in the mixture exceeds a preset threshold, a flow compensation program for the additive is triggered, the flow compensation program including adjusting the operating parameters of the corresponding metering pump and adjusting the flow regulating valve in conjunction.

[0010] Preferably, the swirling guide plate is fixed to the surface of the stirring rod, and the surface of the swirling guide plate and the spiral surface of the spiral plate form an inclined angle of 10° to 60°.

[0011] Preferably, the spectral analysis probe is a near-infrared spectral probe or a Raman spectral probe, and the detection window of the spectral analysis probe is in direct contact with the material flow in the feeding and conveying pipe.

[0012] Preferably, when the intelligent controller triggers the flow compensation program, it first calculates the flow correction value based on the concentration deviation and the main material flow rate, and then converts the flow correction value into a control parameter adjustment amount based on the calibration curve of the metering pump.

[0013] Preferably, the intelligent controller is also used to dynamically adjust the power of the heater based on the feedback data from the temperature sensor, so that the mixing process is stabilized within a preset temperature range.

[0014] The present invention also discloses a method for producing a feeding device using the aforementioned adhesive, comprising the following steps: Step S1, parameter initialization: preset the target formula in the intelligent controller, including the target ratio of the main ingredients and each additive and the target mixing temperature; Step S2, Feedforward Feeding Control: Start the device, the first-level sensor group monitors the flow rate and viscosity of the main material in real time, and the intelligent controller calculates and sets the initial target flow rate of each metering pump according to the actual flow rate of the main material and the preset ratio. Step S3, Bypass closed-loop adjustment: Each of the secondary sensor groups monitors the flow rate of the corresponding additive in real time. The intelligent controller compares the monitored flow rate with the initial target flow rate. If the deviation exceeds the first threshold, the corresponding metering pump is adjusted in real time to eliminate the deviation. Step S4, Mixing and Final Inspection Feedback: After the main material and additives are mixed in the dynamic mixing drum, they enter the feeding conveying pipe. The three-level sensor group analyzes the composition and temperature of the mixed material. Step S5, Global Compensation Adjustment: If the concentration deviation of a certain additive analyzed by the spectral analysis probe exceeds the second threshold, the intelligent controller triggers the flow compensation program, calculates the flow correction value of the additive and adjusts the corresponding metering pump, and at the same time fine-tunes the flow regulating valve as needed to stabilize the total flow; the reading of the temperature sensor is used for closed-loop control of the heater to maintain the mixing temperature; Step S6, Iterative Stabilization: Repeat steps S3 to S5 until the feedback data of the three-level sensor group stabilizes within the preset tolerance range, thus completing continuous and stable material feeding production.

[0015] The technical effects and advantages of this invention are as follows: 1. This glue production feeding device, through a multi-level sensor feedback system and a multi-level feedback adjustment design of an intelligent controller, achieves intelligent control of the entire process of glue production, from the conveying of main materials to the final mixture. The intelligent controller dynamically sets and corrects the additive feeding parameters based on the status of the main materials in real time, and can perform global linkage compensation adjustment based on the composition analysis results of the final mixture. This design effectively overcomes the formulation deviation problems caused by material characteristic fluctuations, uneven mixing, or equipment drift in traditional solutions, improves feeding accuracy and product batch stability, and realizes the upgrade from simple proportional feeding to precise quality control on demand.

[0016] 2. This adhesive production feeding device, by setting a swirling guide plate with a specific tilt angle within the spiral spacing of the spiral plate, generates efficient axial pushing and complex radial and tangential shear turbulence simultaneously during the mixing process. The swirling guide plate greatly enhances the micro-mixing effect of the material in the dynamic mixing drum, which can quickly disperse additive clusters and make them evenly distributed with the main material in a shorter time, thereby further improving the mixing effect and product quality consistency. It is especially suitable for the production of adhesives with high viscosity or extremely high requirements for mixing uniformity.

[0017] 3. This glue production feeding device integrates a spectral analysis probe directly into the feeding and conveying pipe, enabling in-situ, real-time, and non-destructive chemical composition analysis of the mixed materials. The spectral analysis probe transforms traditional offline and delayed quality detection into online and instant feedback, allowing the intelligent controller to obtain the most accurate mixture ratio information at the first moment and initiate a precise flow compensation program accordingly, thus achieving real-time quality control of the production process. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the primary sensor group of the present invention; Figure 3 This is the front view of the present invention; Figure 4 This is a cross-sectional view of the dynamic mixing cylinder of the present invention; Figure 5 This is a schematic diagram of the swirl guide plate of the present invention; Figure 6 This is a diagram of the multi-level sensor and control logic of the present invention; Figure 7 This is a logic diagram of the traffic compensation program of the present invention; Figure 8 This is a dynamic mixing temperature control diagram of the present invention; Figure 9 This is a flowchart of the feeding method of the present invention.

[0020] In the diagram: 1. Equipment frame; 2. Main material channel; 21. Flow regulating valve; 3. Bypass multi-component injection unit; 31. Bypass material channel; 32. Metering pump; 4. Dynamic mixing cylinder; 41. Heater; 42. Drive motor; 43. Stirring rod; 431. Spiral plate; 432. Swirl guide plate; 5. Feeding and conveying pipe; 6. Primary sensor group; 61. First flow meter; 62. Online viscometer; 7. Secondary sensor group; 71. Second flow meter; 72. Pressure sensor; 8. Tertiary sensor group; 81. Spectroscopic analysis probe; 82. Temperature sensor; 9. Intelligent controller. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] This embodiment discloses an adhesive production feeding device, according to the attached... Figure 1 According to the attached Figure 9 As shown, the device includes a frame 1, a main material channel 2 for conveying the main material, a bypass multi-component injection unit 3 for injecting at least one additive, a dynamic mixing cylinder 4 for mixing materials, a feeding and conveying pipe 5, a multi-level sensor feedback system, and an intelligent controller 9.

[0023] The frame 1 is the supporting structure of the entire device. The main material channel 2 is used to continuously transport the main materials for glue production, such as resin and emulsion. The inlet end of the main material channel 2 is connected to the main material supply source, and the outlet end is connected to the feed port of the dynamic mixing cylinder 4. The bypass multi-component injection unit 3 includes at least one independent bypass material channel 31. The inlet of each bypass material channel 31 is connected to an additive storage tank, and the outlet merges into the downstream of the main material channel 2 or is directly connected to the dynamic mixing cylinder 4. It is used to accurately inject multiple additives into the system according to the formula requirements. The outlet of the dynamic mixing cylinder 4 is connected to the feeding conveying pipe 5. The uniformly mixed material is finally transported to the next process or the reactor through the feeding conveying pipe 5.

[0024] Furthermore, the dynamic mixing cylinder 4 is equipped with a stirring unit and a heater 41. The stirring unit includes a drive motor 42 fixed on the cylinder body and a stirring rod 43 driven by the drive motor 42 and extending into the cylinder. A spiral plate 431 is provided on the stirring rod 43. The spiral plate 431 is used to generate axial flow when rotating, promoting the movement of materials from the inlet to the outlet. To enhance mixing, a swirling guide plate 432 for turbulence is provided within the spiral spacing of the spiral plate 431. In particular, the swirling guide plate 432 is fixed to the surface of the stirring rod 43, and the plate surface of the swirling guide plate 432 and the spiral curved surface of the spiral plate 431 form an inclined angle of 10° to 60°. This design allows the materials to be cut and dispersed by the swirling guide plate 432 while flowing axially, generating complex radial and tangential turbulence, thereby efficiently dispersing additive clusters and achieving rapid and uniform micro-mixing.

[0025] Furthermore, the multi-level sensor feedback system includes a primary sensor group 6, a secondary sensor group 7, and a tertiary sensor group 8. The primary sensor group 6 is installed on the main material channel 2 and includes at least a first flow meter 61 for detecting the instantaneous and cumulative flow of the main material and an online viscometer 62 for real-time detection of the viscosity of the main material. The secondary sensor group 7 is installed corresponding to each bypass material channel 31 of the bypass multi-component injection unit 3 and includes at least a second flow meter 71 for detecting the flow of the corresponding additive and a pressure sensor 72 for monitoring the pipeline pressure. The tertiary sensor group 8 is installed on the feeding and conveying pipe 5 and includes at least a spectral analysis probe 81 for real-time analysis of the chemical composition of the mixture and a temperature sensor 82 for detecting the temperature of the mixture. In particular, the spectral analysis probe 81 is a near-infrared spectral probe or a Raman spectral probe. The detection window of the spectral analysis probe 81 is in direct contact with the material flow in the feeding and conveying pipe 5 to achieve in-situ, online, and non-destructive component analysis.

[0026] Specifically, each bypass material channel 31 of the bypass multi-component injection unit 3 is equipped with a high-precision metering pump 32 to precisely control the additive delivery rate. Correspondingly, the main material channel 2 is equipped with a flow regulating valve 21 to regulate the flow rate of the main material.

[0027] It is important to emphasize that the intelligent controller 9 is electrically connected to the flow regulating valve 21 of the main material channel 2, the metering pumps 32 of the bypass multi-component injection unit 3, the drive motor 42 and heater 41 of the dynamic mixing cylinder 4, and all sensors in the multi-level sensor feedback system. The core of the intelligent controller 9 is that it is configured to execute a set of control logic to achieve accurate and stable formula feeding.

[0028] Furthermore, the control logic of the intelligent controller 9 includes a combination of feedforward and feedback: First, based on the main material flow rate and viscosity data monitored in real time by the first-level sensor group 6, combined with the preset target formula, i.e. the preset ratio of the main material and each additive, the initial target flow rate of each metering pump 32 is calculated and set. Then, based on the actual flow rate data of each additive fed back by the second-level sensor group 7, it is compared with the initial target flow rate in real time, and the operating frequency or stroke of the corresponding metering pump 32 is adjusted through algorithms such as PID to ensure that the bypass feeding accurately follows the set value, thereby forming the first-level closed-loop feedback. Finally, based on the feedback data of the third-level sensor group 8, the highest level of quality feedback adjustment and global coordination are performed.

[0029] Specifically, the intelligent controller 9 is further configured to: when the spectral analysis probe 81 detects that the concentration deviation of one or more additives in the mixture exceeds a preset threshold, immediately trigger a flow compensation program for that additive. This program first calculates the required flow correction value for the additive based on the detected concentration deviation, the total flow rate of the mixture, and the main material flow rate. The concentration deviation and the total flow rate of the mixture can be deduced from the data of the first flow meter 61 and the second flow meter 71. Then, based on the pre-stored flow control parameter calibration curve of the corresponding metering pump 32, the flow correction value is converted into a specific adjustment amount for the control parameters of the metering pump 32. At the same time, in order to maintain the overall material balance of the system, the intelligent controller 9 may link to fine-tune the flow regulating valve 21 on the main material channel 2 to compensate for the flow rate of the main material. This process constitutes a global closed-loop feedback, which can directly correct the final product composition deviation caused by factors such as material characteristic fluctuations, minor equipment wear or lag.

[0030] It is worth emphasizing that the intelligent controller 9 is also used to dynamically adjust the power of the heater 41 inside the dynamic mixing drum 4 based on the feedback data from the temperature sensor 82. Through PID control, the mixing process is stabilized within the preset optimal temperature range, reducing temperature deviation and ensuring the consistency of product quality with each feeding.

[0031] Example 1: This example uses the production of a standard epoxy resin adhesive as an example. The workflow is described in detail with reference to the accompanying drawings. The workflow is as follows: Step S1, parameter initialization: preset the target formula in the human-machine interface of the intelligent controller 9, for example, the target flow rate of the main material epoxy resin is 100L / h, the target addition ratio of the curing agent is 20%, that is, 20L / h, the target addition ratio of the accelerator is 1%, that is, 1L / h, and the target mixing temperature is 50℃.

[0032] Step S2, Feedforward Feeding Control: Start the device, the main material is conveyed from the storage tank through the main material channel 2, the first flow meter 61 monitors the actual flow rate of the main material in real time, the online viscometer 62 monitors its viscosity, the intelligent controller 9 reads that the actual flow rate of the main material is 98L / h, which is slightly lower than the set value, and immediately calculates and sets the initial target flow rate of the curing agent metering pump to 19.6L / h and the initial target flow rate of the accelerator metering pump to 0.98L / h according to the preset ratio.

[0033] Step S3, Bypass Closed-Loop Adjustment: The second flow meters 71 on the bypass of the curing agent and accelerator respectively feed back the flow data to the intelligent controller 9 in real time. The controller compares the feedback value with the initial target value, 19.6L / h and 0.98L / h. If the instantaneous flow rate of the curing agent is 19.4L / h, there is a slight negative deviation. Then the intelligent controller 9 automatically fine-tunes the frequency of the curing agent metering pump 32 to make its output flow rate accurately and stably stabilized around 19.6L / h.

[0034] Step S4, Mixing and Final Inspection Feedback: After the main material and additives are fully sheared, mixed and heated in the dynamic mixing cylinder 4 by the spiral plate 431 and the swirl guide plate 432, they enter the feeding and conveying pipe 5. The spectral analysis probe 81 performs continuous spectral scanning on the mixture flowing through its window and analyzes the actual concentration of the curing agent in real time through the built-in model; the temperature sensor 82 monitors the temperature of the mixture.

[0035] Step S5, Global Compensation Adjustment: Assuming the spectral analysis probe 81 analyzes the curing agent concentration as 19.8%, slightly lower than the target value of 20%, and the deviation exceeds the second threshold, the intelligent controller 9 triggers the flow compensation program, calculating that the instantaneous flow rate of the curing agent needs to be increased by about 0.4 L / h. Based on this, the controller adjusts the curing agent metering pump 32. At the same time, in order to maintain a stable total feed rate, the main line flow regulating valve 21 is slightly closed, so that the main material flow rate is slightly reduced to about 97.8 L / h. The temperature sensor 82 displays a temperature of 48℃, and the intelligent controller 9 increases the power of the heater 41, so that the temperature rises back to 50℃.

[0036] Step S6, Iterative Stabilization: The system continues to run, repeating the monitoring and adjustment process from steps S3 to S5. After several rapid feedback adjustment cycles, the concentration of curing agent fed back by the spectral analysis probe 81 stabilizes between 19.95% and 20.05%, and the temperature stabilizes at 50±0.5℃. The system enters a continuous and stable high-precision feeding production state.

[0037] Example 2: This example uses online formula modification during production as an example, and the workflow is described in detail with reference to the accompanying drawings: The workflow is as follows: During the stable production process in Example 1, an instruction was received to switch the product to a fast-drying type, requiring the accelerator ratio to be increased from 1% to 2%, while the main material flow rate remained unchanged.

[0038] The operator inputs new formula parameters into the intelligent controller 9, and the intelligent controller 9 immediately recalculates and sets the initial target flow rate of the accelerator from 0.98 L / h to approximately 1.96 L / h based on the current main material flow rate.

[0039] The second flow meter 71 of the accelerator in the secondary sensor group 7 detects the change in the set value. Its feedback flow rate deviates from the new target value. The intelligent controller 9 quickly adjusts the accelerator metering pump 32 so that its flow rate rises to near the new set value in a short time.

[0040] Due to changes in the additive ratio, the thermodynamic properties of the mixture may change slightly. The spectral analysis probe 81 in the three-stage sensor group 8 will monitor the increase in the concentration of the promoter and provide the final concentration verification. The temperature sensor 82 may detect temperature fluctuations caused by the exothermic change of the reaction. The intelligent controller 9 dynamically adjusts the power output of the heater 41 based on this feedback to ensure the stability of the mixing temperature.

[0041] Throughout the switching process, the primary sensor group 6 continuously monitors the main material flow rate, and the intelligent controller 9 coordinates the main line flow regulating valve 21 and each metering pump 32 through global compensation logic to ensure that the total material balance and composition are quickly and smoothly transitioned to the new formula requirements. Product switching can be completed without stopping the machine, which greatly improves production flexibility and efficiency.

[0042] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A glue production feeding device, characterized in that, The device includes a frame (1), a main material channel (2) for conveying the main material, a bypass multi-component injection unit (3) for injecting at least one additive, a dynamic mixing cylinder (4) for mixing materials, and a feeding conveying pipe (5); characterized in that it further includes: The multi-level sensor feedback system includes a first-level sensor group (6) for monitoring the material status of the main material channel (2), a second-level sensor group (7) for monitoring the feeding status of the bypass multi-component injection unit (3), and a third-level sensor group (8) for monitoring the mixed material status in the feeding conveying pipe (5). The intelligent controller (9) is electrically connected to the main material channel (2), the bypass multi-component injection unit (3), the dynamic mixing cylinder (4), and the multi-level sensor feedback system, respectively. The intelligent controller (9) is configured to: set the initial feeding parameters of the bypass multi-component injection unit (3) based on the real-time data of the first-level sensor group (6); adjust the bypass multi-component injection unit (3) in real time based on the feedback data of the second-level sensor group (7); and adjust the main material channel (2) and / or the bypass multi-component injection unit (3) in conjunction with the feedback data of the third-level sensor group (8).

2. The glue production feeding device according to claim 1, characterized in that, The dynamic mixing cylinder (4) is provided with a stirring unit and a heater (41); the stirring unit includes a drive motor (42) and a stirring rod (43) driven by the drive motor (42); a spiral plate (431) is provided on the stirring rod (43), and a swirling guide plate (432) for turbulence is provided within the spiral spacing of the spiral plate (431).

3. The glue production feeding device according to claim 2, characterized in that, The first-level sensor group (6) includes at least a first flow meter (61) for detecting the flow rate of the main material and an online viscometer (62) for detecting the viscosity of the main material; the second-level sensor group (7) is set for each bypass material channel (31) of the bypass multi-component injection unit (3), and includes at least a second flow meter (71) for detecting the flow rate of the corresponding additive and a pressure sensor (72) for monitoring the pipeline pressure; the third-level sensor group (8) includes at least a spectral analysis probe (81) for analyzing the composition of the mixture and a temperature sensor (82) for detecting the temperature of the mixture.

4. The glue production feeding device according to claim 3, characterized in that, The bypass multi-component injection unit (3) includes at least one bypass material channel (31), and each bypass material channel (31) is equipped with a metering pump (32); the main material channel (2) is equipped with a flow regulating valve (21).

5. The glue production feeding device according to claim 4, characterized in that, The intelligent controller (9) is further configured to execute the following control logic: when the spectral analysis probe (81) detects that the concentration deviation of an additive in the mixture exceeds a preset threshold, a flow compensation program for the additive is triggered. The flow compensation program includes adjusting the operating parameters of the corresponding metering pump (32) and adjusting the flow regulating valve (21) in conjunction.

6. The glue production feeding device according to claim 2, characterized in that, The swirling guide plate (432) is fixed to the surface of the stirring rod (43), and the surface of the swirling guide plate (432) and the spiral surface of the spiral plate (431) are inclined at an angle of 10° to 60°.

7. The glue production feeding device according to claim 3, characterized in that, The spectral analysis probe (81) is a near-infrared spectral probe or a Raman spectral probe, and the detection window of the spectral analysis probe (81) is in direct contact with the material flow in the feeding and conveying pipe (5).

8. The glue production feeding device according to claim 5, characterized in that, When the intelligent controller (9) triggers the flow compensation program, it first calculates the flow correction value based on the concentration deviation and the main material flow rate, and then converts the flow correction value into the control parameter adjustment amount based on the calibration curve of the metering pump (32).

9. The glue production feeding device according to claim 3, characterized in that, The intelligent controller (9) is also used to dynamically adjust the power of the heater (41) based on the feedback data from the temperature sensor (82) so that the mixing process is stabilized within a preset temperature range.

10. A method for using the glue production feeding device as described in any one of claims 1-9, characterized in that, Includes the following steps: Step S1, parameter initialization: preset the target formula in the intelligent controller (9), including the target ratio of the main ingredients and each additive and the target mixing temperature; Step S2, feedforward feeding control: Start the device, the first-level sensor group (6) monitors the flow rate and viscosity of the main material in real time, and the intelligent controller (9) calculates and sets the initial target flow rate of each metering pump (32) according to the actual flow rate of the main material and the preset ratio; Step S3, bypass closed-loop adjustment: Each of the secondary sensor groups (7) monitors the flow rate of the corresponding additive in real time. The intelligent controller (9) compares the monitored flow rate with the initial target flow rate. If the deviation exceeds the first threshold, the corresponding metering pump (32) is adjusted in real time to eliminate the deviation. Step S4, Mixing and final inspection feedback: After the main material and additives are mixed in the dynamic mixing cylinder (4), they enter the feeding conveying pipe (5), and the three-level sensor group (8) performs composition and temperature analysis on the mixed material; Step S5, global compensation adjustment: If the concentration deviation of an additive analyzed by the spectral analysis probe (81) exceeds the second threshold, the intelligent controller (9) triggers the flow compensation program, calculates the flow correction value of the additive and adjusts the corresponding metering pump (32), and at the same time, fine-tunes the flow regulating valve (21) as needed to stabilize the total flow; the reading of the temperature sensor (82) is used for closed-loop control of the heater (41) to maintain the mixing temperature; Step S6, Iterative Stabilization: Repeat steps S3 to S5 until the feedback data of the three-level sensor group (8) is stable within the preset tolerance range, thus completing continuous and stable material feeding production.

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