CN-121978948-A - UV glue production process optimization control system

CN121978948ACN 121978948 ACN121978948 ACN 121978948ACN-121978948-A

Abstract

The invention discloses an optimized control system for a UV glue production process, and belongs to the technical field of production control and optimization. Comprises a premixing kettle, a parameter detection module transmits technological parameters to a controller, a particle fineness control module receives the median diameter data of UV rubber particles collected by a laser particle size analyzer in real time, and dynamically adjusts the rotating speed of a grinding machine by combining with a wear compensation coefficient of equipment, a premixing temperature control module receives the premixing temperature in the premixing kettle collected by a thermocouple temperature sensor, combines the rotating speed variation and the premixing reaction activity coefficient, the invention establishes a coupling correction model of 'particle-rotating speed-temperature-energy', and realizes the upgrade from 'single parameter adjustment' to 'system level optimization' through on-line detection and real-time correction.

Inventors

SONG WEIBO
LI YANAN
LI MINGLIANG

Assignees

山东亿晨新材料有限公司

Dates

Publication Date: 20260505
Application Date: 20260206

Claims (8)

1. The optimized control system for the UV adhesive production process comprises a premixing kettle (1), and is characterized in that a variable-frequency speed regulator motor (2), a laser particle size analyzer (3), a thermocouple temperature sensor (4), a UV energy meter and a controller are respectively arranged on the premixing kettle (1); the controller includes: the parameter detection module is configured to acquire process parameters including median position data, premixing temperature and curing energy of the UV glue particles in real time through the laser particle size analyzer (3), the thermocouple temperature sensor (4) and the UV energy meter, and transmit the process parameters to the controller; the particle fineness control module is configured to receive the median diameter data of the UV glue particles collected by the laser particle size analyzer (3) in real time, and dynamically adjust the rotating speed of the grinder by outputting a rotating speed adjusting instruction comprising the corrected grinding rotating speed to the controller according to the deviation direction while quantifying the excessive coarse and the excessive fine degree of the particles by combining with the equipment abrasion compensation coefficient; The premixing temperature control module is configured to receive the premixing temperature in the premixing kettle (1) acquired by the thermocouple temperature sensor (4), and to quantify the heat generation influence of the rotating speed change on the temperature by combining the rotating speed change quantity and the premixing reaction activity coefficient, and to output a temperature adjustment instruction comprising the corrected premixing temperature to the controller so as to dynamically correct the premixing temperature; The curing energy control module is configured to receive curing energy in the curing process acquired by the UV energy meter, and to combine the premixed temperature deviation and the curing energy penetration efficiency, quantify the influence of the viscosity change of the glue solution on the energy penetration, and output an energy correction instruction comprising corrected curing energy to the controller so as to dynamically adjust the output energy of the UV lamp; And the system cooperative control module is configured to receive the energy correction instruction and continuously optimize the process instruction parameters through a closed loop feedback mechanism according to a preset comparison adjustment instruction.
2. The UV glue production process optimization control system of claim 1, wherein the particle fineness control module comprises: the particle detection subunit is configured to obtain a direction judgment variable reflecting the correction direction according to a first comparison result of the real-time median diameter of the current acquisition period acquired by the laser particle size analyzer (3) and a preset reference median diameter, and output a particle deviation ratio through a proportional relation between the real-time median diameter and the reference median diameter; a wear compensation subunit configured to calculate the equipment wear compensation coefficient according to an equipment operation time length; And the rotating speed adjusting subunit is configured to obtain a rotating speed adjusting quantity according to the direction judging variable, the particle deviation proportion and the equipment wear compensation coefficient, and output the rotating speed adjusting instruction to the controller by combining the product of the rotating speed adjusting quantity and a preset target grinding rotating speed.
3. The UV glue production process optimization control system of claim 2, wherein the premix temperature control module comprises: The influence conversion subunit is configured to output a temperature variation through the difference between the real-time premixing temperature of the current acquisition period acquired by the thermocouple temperature sensor (4) and the preset target premixing temperature, output a rotation speed variation through the difference between the corrected grinding rotation speed and the target grinding rotation speed, and obtain a conversion coefficient of the rotation speed influence temperature according to a linear equation fitted by the temperature variation and the rotation speed variation; The premixing reaction calculation subunit is configured to obtain a real-time premixing reaction activity coefficient according to the proportional relation between the time temperature deviation and the time value deviation in the preset adjacent period; And the temperature correction subunit is configured to multiply the rotating speed variation with the conversion coefficient and the premixing reactivity coefficient to obtain a temperature adjustment quantity, subtract a preset target premixing temperature from the temperature adjustment quantity and output the temperature adjustment instruction to the controller.
4. A UV glue production process optimization control system in accordance with claim 3, wherein said curing energy control module comprises: An energy correction subunit configured to calculate a temperature deviation ratio of the premixing temperature according to the corrected premixing temperature and the target premixing temperature, calculate an energy penetration term according to the curing energy penetration efficiency, and calculate an energy adjustment amount by combining the temperature deviation ratio and the energy penetration term; And the energy adjustment subunit is configured to output the energy adjustment instruction to the controller according to the product of the energy adjustment quantity and preset target curing energy.
5. The optimized control system for a UV glue production process according to claim 4, wherein the system cooperative control module comprises: a parameter linkage subunit configured to transmit the rotational speed adjustment instruction of the particle fineness control module to the pre-mix temperature control module and transmit the temperature correction instruction of the pre-mix temperature control module to the curing energy control module; the closed loop feedback subunit is configured to substitute the energy correction instruction into the comparison adjustment instruction, and optimize the reference median diameter according to a second comparison result, wherein a specific optimization formula is as follows: If E adj ＞E max , the adjustment formula for D ref is: ; If E adj ＜E min , the adjustment formula for D ref is: ; wherein: D is the real-time median diameter, D ref is the reference median diameter, D ref-new1 is the first updated reference median diameter, D ref-new2 is the second updated reference median diameter, E max is the maximum cure energy, and E min is the minimum cure energy.
6. The optimized control system for the UV glue production process according to claim 2, wherein the method for obtaining the direction judgment variable is specifically as follows: ; wherein: K dir is a direction judgment variable, D is a real-time median diameter, and D ref is a reference median diameter.
7. The optimized control system for UV glue production process according to claim 1, wherein the output end of the variable frequency speed regulator motor (2) is fixedly connected to the input end of the grinder to control the grinding rotation speed after the correction is performed.
8. The UV glue production process optimization control system of claim 1, wherein the controller further comprises: the data storage and feedback unit is configured to store historical process parameters and optimization results of the continuous optimization process instruction parameters, and continuously optimize control parameters through a machine learning algorithm.

Description

UV glue production process optimization control system Technical Field The invention relates to the technical field of production control and optimization, in particular to an optimization control system for a UV glue production process. Background The UV adhesive has high curing speed and good environmental protection, so that the UV adhesive is widely applied to the fields of electronic packaging, optical bonding and the like, but the problems of large particle fineness fluctuation, low temperature control precision, insufficient curing energy utilization rate and the like in the production process limit the quality stability of products for a long time. In the production of UV glue, the existing process control mostly adopts open-loop single parameter adjustment, which results in insufficient production stability and product consistency, and the specific problems are that firstly, the prior art relies on manual timing sampling to detect the median diameter of particles (such as by an offline laser particle sizer), the detection period is longer than 30 minutes, thus the grinding effect is difficult to feedback in real time, meanwhile, the long-term abrasion of a grinding machine is not considered, the deviation between the actual rotating speed and the theoretical rotating speed is gradually enlarged along with the aging of equipment, secondly, in the premixing process, the change of the rotating speed directly influences the shearing heat of glue in a kettle, but the prior art only carries out PID adjustment through an independent temperature sensor, does not establish the associated correction logic of 'rotating speed-temperature', and in addition, when the prior art sets curing energy, only references the content of a photoinitiator, does not consider the influence of the premixing temperature deviation on the viscosity of the glue, does not compensate the attenuation of the energy in the glue layer, the fluctuation of particles in a grinding link can be conducted to the temperature fluctuation of the premixing link, and finally influences the energy requirement of the UV glue production and curing link. Disclosure of Invention The invention aims to solve the technical problems that hysteresis and equipment wear compensation of particle fineness control in the process of process optimization control are lost, coupling interference of temperature and rotating speed is not quantized, penetration loss of curing energy and temperature deviation are not compensated in the prior art, and provides an optimized control system for a UV glue production process. The technical scheme is that the UV adhesive production process optimization control system comprises a premixing kettle, wherein a variable-frequency speed regulator motor, a laser granularity analyzer, a thermocouple temperature sensor, a UV energy meter and a controller are respectively arranged on the premixing kettle; the controller includes: The parameter detection module is configured to acquire process parameters including median position data, premixing temperature and curing energy in the UV glue particles in real time through the laser particle size analyzer, the thermocouple temperature sensor and the UV energy meter, and transmit the process parameters to the controller; The particle fineness control module is configured to receive the median diameter data of the UV glue particles collected in real time by the laser particle size analyzer, and in combination with the equipment abrasion compensation coefficient, the particle fineness control module is used for outputting a rotating speed adjusting instruction comprising the corrected grinding rotating speed to the controller according to the deviation direction to dynamically adjust the rotating speed of the grinder while quantifying the excessive coarse and excessive fine degree of the particles; the premixing temperature control module is configured to receive the premixing temperature in the premixing kettle acquired by the thermocouple temperature sensor, and to quantify the heat generation influence of the rotating speed change on the temperature by combining the rotating speed change quantity and the premixing reaction activity coefficient, and to output a temperature adjustment instruction comprising the corrected premixing temperature to the controller so as to dynamically correct the premixing temperature; The curing energy control module is configured to receive curing energy in the curing process acquired by the UV energy meter, and to combine the premixed temperature deviation and the curing energy penetration efficiency, quantify the influence of the viscosity change of the glue solution on the energy penetration, and output an energy correction instruction comprising corrected curing energy to the controller so as to dynamically adjust the output energy of the UV lamp; And the system cooperative control module is configured to receive the energy correction instruction and contin