A method for automatically adding glue for film production

Abstract

The invention relates to the technical field of automatic glue addition in film production, and specifically discloses an automatic glue addition method for film production. The method comprises the following steps: obtaining a glue addition value by monitoring and analyzing production demand state parameters in a forage film production process, dynamically adjusting the glue addition parameters according to the glue addition value, and simultaneously analyzing and processing the glue quality state parameters, glue addition equipment state parameters and ambient temperature in a current monitoring time period in the forage film production process to obtain a glue addition influence coefficient, thereby analyzing the calibrated glue addition value. On the one hand, the method ensures that the glue addition effect in the production process is consistent with actual demand, and reduces the situation of excessive or insufficient glue addition. On the other hand, the method helps to timely discover and correct the glue addition value deviation caused by glue quality, glue addition equipment and ambient temperature factors, thereby realizing automatic adjustment of glue addition parameters, improving production efficiency and product quality, and realizing intelligent production.

Description

Technical Field

[0001] The invention relates to the technical field of automatic glue addition in film production, in particular to an automatic glue addition method for film production. Background Art

[0002] Grass film is a kind of waterproof, dustproof and puncture-proof winding plastic film made of PE polyethylene. It is mainly used to store feed and grass for animals and livestock. It needs to have strong tensile strength, tear resistance and puncture resistance to ensure that the grass will not be damaged during silage. Therefore, how to accurately add glue in the process of grass film production is of great significance.

[0003] At present, the method of adding glue in the production of forage film is usually to control the amount of glue added by setting the glue adding time. This method is simple and easy to operate, but it requires experienced operators to make adjustments according to production conditions, and the accuracy is relatively low. It is easy to cause the adhesion, durability and other properties of the forage film to decrease due to incorrect operation judgment;

[0004] In addition, the accuracy of the amount of glue added in forage film production is closely and inextricably linked to the quality of the glue itself, the glue adding equipment, and the ambient temperature during glue adding. Currently, the setting of the amount of glue added in forage film production usually ignores the impact of these factors on the glue adding parameters during the glue adding process, resulting in low accuracy of the glue adding parameter results. Summary of the invention

[0005] In order to overcome the shortcomings of the background technology, an embodiment of the present invention provides a method for automatically adding glue for film production, which can effectively solve the problems involved in the above-mentioned background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] A method for automatically adding glue for film production, comprising:

[0008] Step 1: Set parameters: Obtain the production demand status parameters of the current monitoring time period from the control device, and parse the glue adding parameter settings of the current monitoring time period based on the production demand status parameters. The specific parsing process is as follows:

[0009] By obtaining the thickness, width and length of the forage film in the production demand status parameters of the current monitoring period, and calibrating them as hd, kd and cd respectively, the values ​​of the three are extracted for normalization processing, according to the set formula: The glue adding value is obtained, wherein e represents a natural constant, η1, η2 and η3 all represent correction coefficients, and the glue adding value is compared and matched with the glue adding state determination table stored in the cloud database, thereby obtaining the glue adding state determination level, and each glue adding value obtained corresponds to a glue adding state determination level, and at the same time, it is matched with the glue adding parameter corresponding to the glue adding state determination level, and the glue adding parameter of the current monitoring time period is obtained, wherein the glue adding parameter includes glue adding amount, glue adding flow rate and glue adding frequency;

[0010] Step 2: Glue quality analysis: Monitor the glue quality in the current monitoring time period during the forage film production process to obtain glue quality status parameters, and analyze the colloid coefficient in the current monitoring time period during the forage film production process to obtain the colloid coefficient, and compare and analyze the colloid coefficient with the preset comparison reference interval. If the colloid coefficient is outside the preset comparison reference interval, execute step 4 and send the obtained colloid coefficient to step 4;

[0011] Step 3: Glue adding equipment quality analysis: monitor the glue adding equipment in the current monitoring time period during the forage film production process to obtain the glue adding equipment status parameters, and analyze the quality coefficient of the current monitoring time period during the forage film production process to obtain the quality coefficient, compare and analyze the quality coefficient with the preset quality threshold, if the quality coefficient is greater than the preset quality threshold, execute step 4, and send the obtained quality coefficient to step 4;

[0012] Step 4: Analysis of the impact of adding glue: By monitoring and analyzing the ambient temperature of the current monitoring time period during the production of forage film, the temperature shadow coefficient is obtained, and the impact coefficient of adding glue in the current monitoring time period during the production of forage film is analyzed based on the glue coefficient, the set quality coefficient and the temperature shadow coefficient, and the impact coefficient of adding glue in the current monitoring time period during the production of forage film is obtained;

[0013] Step 5: Glue addition calibration: obtain the glue addition value of the current monitoring time period in the forage film production process, and analyze the calibrated glue addition value of the current monitoring time period in the forage film production process based on the glue addition influence coefficient of the current monitoring time period in the forage film production process and the glue addition value of the current monitoring time period, and obtain the calibrated glue addition value of the current monitoring time period in the forage film production process;

[0014] Step 6: Calibration control: Use control equipment to make corresponding control adjustments to the calibration glue addition value of the current monitoring time period during the forage film production process.

[0015] Furthermore, the glue quality is monitored, and the specific monitoring process is as follows:

[0016] The glue flow rate at each monitoring time point in the current monitoring time period during the production of forage film is obtained, and the glue flow rate at each monitoring time point in the current monitoring time period during the production of forage film is obtained, and it is marked as the glue speed value, with each monitoring time point as the horizontal coordinate and the glue speed value as the vertical coordinate, and the glue speed values ​​of adjacent monitoring time points are connected by line segments in the order of time to establish a two-dimensional rectangular coordinate system; the midpoint of each line segment on the two-dimensional rectangular coordinate system is obtained, and it is used as the center of the circle, and a circle is drawn with half the length of each line segment as the radius to obtain a ring and calculate the area of ​​the ring, and the difference of the adjacent ring areas is calculated to obtain the ring surface difference, and the ring surface difference is averaged to obtain the ring surface difference mean, and calibrated as the viscosity value;

[0017] The pH of the glue at each monitoring time point in the current monitoring time period during the forage film production process is obtained by obtaining the pH of the glue at each monitoring time point in the current monitoring time period during the forage film production process, and the average pH is calculated and marked as the pH value;

[0018] The color of the glue at each monitoring time point in the current monitoring time period during the forage film production process is obtained, and the color of the glue at each monitoring time point in the current monitoring time period during the forage film production process is obtained, and it is matched with the preset reference glue color threshold. If the color of the glue at a certain monitoring time point does not match the preset reference glue color threshold, the monitoring time point is recorded as an abnormal glue color change point, and the continuous adjacent abnormal glue color change points are integrated to obtain the duration of each abnormal glue color change, and the longest abnormal glue color change duration is selected as the color change value;

[0019] The glue quality status parameters are composed of the viscosity value, pH value and color change value in the current monitoring time period during the forage film production process.

[0020] Furthermore, the colloid coefficient is analyzed, and the specific analysis process is as follows:

[0021] By extracting the viscosity value, pH value and color change value from the glue quality state parameters and calibrating them as Zn, Zs and Zb respectively, the three values ​​are extracted for normalization, according to the formula: Get the colloid coefficient JZS, where Zn * 、Zs * and Zb * , respectively represent the reference standard viscosity value, reference standard pH value and reference standard color change value, λ1, λ2 and λ3 represent the weight coefficients of viscosity deviation value, pH deviation value and color change deviation value, respectively, δ nsb Expressed as modified impact factor.

[0022] Furthermore, the glue adding equipment is monitored, and the specific monitoring process is as follows:

[0023] The pressure waveform data of the glue adding equipment in the current monitoring time period in the forage film production process is obtained, and the obtained pressure waveform data is transmitted to the oscilloscope, thereby obtaining the pressure waveform of the glue adding equipment in the current monitoring time period, setting a reference waveform of the pressure waveform, and calculating the overlap between the pressure waveform and the reference waveform. If the overlap is greater than a preset reference overlap threshold, it indicates that the pressure of the glue adding equipment in the current monitoring time period is in a stable state, and a normal signal is generated thereby. If the overlap is less than or equal to the preset reference overlap threshold, it indicates that the pressure of the glue adding equipment in the current monitoring time period is in a fluctuating state, and an abnormal signal is generated thereby. The ratio between the sum of the number of signals marked as normal and the sum of the number of signals marked as abnormal is calculated, thereby obtaining a steady-wave pressure value.

[0024] The vibration amplitude of the glue adding equipment in the current monitoring time period during the forage film production process is obtained, and the vibration amplitude of the glue adding equipment in the current monitoring time period during the forage film production process is obtained. The vibration acceleration change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is monitored in real time by an acceleration sensor, and the vibration acceleration change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is obtained, and the mean analysis is performed to obtain the vibration acceleration characteristic value; at the same time, the vibration displacement change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is monitored, and the vibration displacement change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is obtained, and the mean analysis is performed to obtain the vibration displacement characteristic value; the values ​​of the vibration acceleration characteristic value and the vibration displacement characteristic value are extracted and multiplied by the corresponding weight coefficients respectively and then added, thereby obtaining the amplitude fluctuation value;

[0025] The number of failures of the glue adding equipment in the current monitoring period during the forage film production process is obtained by obtaining the number of failures of the glue adding equipment in the current monitoring period during the forage film production process, and marked as a failure value;

[0026] The state parameters of the glue adding equipment are composed of the steady wave pressure value, amplitude fluctuation value and fault value in the current monitoring time period during the forage film production process.

[0027] Furthermore, the design quality coefficient is analyzed, and the specific analysis process is as follows:

[0028] By extracting the steady wave pressure value, amplitude fluctuation value and fault value from the glue adding equipment state parameters and marking them as Sy, Sf and Sz respectively, the three values ​​are extracted for normalization processing, according to the formula: Get the quality coefficient SBP, where Sy * , Sf * and Sz *, represent the reference steady wave pressure value, reference amplitude fluctuation value and reference fault value respectively, μ1, μ2 and μ3 represent the weight coefficients of the steady wave pressure deviation degree, amplitude fluctuation deviation degree and fault deviation degree respectively.

[0029] Furthermore, the influence coefficient of adding glue is analyzed, and the specific analysis process is as follows:

[0030] Extract the value of the ambient temperature during the current monitoring period in the forage film production process and record it as GD. Extract the reference ambient temperature corresponding to the current monitoring period in the forage film production process from the database and record it as GD. * ;

[0031] The temperature shadow coefficient WYD of the current monitoring period in the forage film production process is calculated according to the formula:

[0032] It is represented as the influence factor when the ambient temperature of the current monitoring time period in the forage film production process is greater than the corresponding reference ambient temperature, p2 is represented as the influence factor when the ambient temperature of the current monitoring time period in the forage film production process is less than the corresponding reference ambient temperature, and θ is represented as a natural constant;

[0033] According to the formula: JYY=JZS×β1+SBP×β2+WYD×β3, the glue adding influence coefficient JYY in the current monitoring time period during the forage film production process is obtained. β1, β2, and β3 represent the influence factors corresponding to the glue coefficient, set quality coefficient, and temperature shadow coefficient, respectively.

[0034] Furthermore, the calibration glue value is analyzed, and the specific analysis is as follows:

[0035] Match the glue adding influence coefficient of the current monitoring time period in the forage film production process with the glue adding influence values ​​corresponding to the set glue adding influence coefficients to obtain the glue adding influence value of the current monitoring time period in the forage film production process; subtract the glue adding value from the glue adding influence value of the current monitoring time period in the forage film production process to obtain the difference between the glue adding value and the glue adding influence value of the current monitoring time period in the forage film production process, which is used as the calibrated glue adding value of the current monitoring time period in the forage film production process.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] The present invention obtains the glue adding value by monitoring and analyzing the production demand state parameters in the forage film production process, and dynamically adjusts the glue adding parameters according to the glue adding value, thereby ensuring that the glue adding effect in the production process is consistent with the actual demand, and reducing the situation of excessive glue adding or insufficient glue adding;

[0038] The installed detection equipment can monitor and analyze the glue quality, glue adding equipment and ambient temperature in real time in multiple dimensions, thereby obtaining the glue coefficient, design quality coefficient and temperature shadow coefficient respectively, and comprehensively analyzing them to obtain the glue adding influence coefficient, which can comprehensively evaluate the impact of glue adding status in the forage film production process. Based on this comprehensive evaluation method, it can provide scientific data support for production decisions, help to more accurately judge the glue adding effect and optimize the production process;

[0039] By matching and subtracting the glue addition influence coefficient with the glue addition influence value, the influence of quality factors, equipment factors and environmental factors on the glue addition value can be eliminated, and a more accurate calibrated glue addition value can be obtained. This helps to ensure that the amount of glue added in the production process matches the actual demand and improves the quality and stability of the product. At the same time, the calibration analysis of the glue addition value can timely discover and correct the deviation of the glue addition value caused by quality changes, environmental changes and equipment status factors, thereby realizing automatic adjustment of glue addition parameters and production conditions, quickly responding to changes in the production process, improving production efficiency and product quality, and realizing intelligent production. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0041] Figure 1 The figure is a general block diagram of the method of the present invention. DETAILED DESCRIPTION

[0042] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] like Figure 1 As shown, a method for automatically adding glue for film production comprises:

[0044] Step 1: Setting parameters: Obtain the production demand status parameters of the current monitoring time period from the control device, where the production demand status parameters include the thickness, width and length of the forage film, and analyze the glue adding parameter settings of the current monitoring time period based on the production demand status parameters. The specific analysis process is as follows:

[0045] By obtaining the thickness, width and length of the forage film in the production demand status parameters of the current monitoring period, and calibrating them as hd, kd and cd respectively, the values ​​of the three are extracted for normalization processing, according to the set formula: The glue adding value is obtained, wherein e represents a natural constant, η1, η2 and η3 all represent correction coefficients, and the glue adding value is compared and matched with the glue adding state determination table stored in the cloud database, thereby obtaining the glue adding state determination level, and each glue adding value obtained corresponds to a glue adding state determination level, and at the same time, it is matched with the glue adding parameter corresponding to the glue adding state determination level, and the glue adding parameter of the current monitoring time period is obtained; wherein the glue adding parameter includes glue adding amount, glue adding flow rate and glue adding frequency;

[0046] It should be noted that corresponding sensors are installed in key parts of the forage film production line, such as the processing area and the export area. These sensors can monitor the thickness, width and length of the forage film and transmit real-time data to the control device;

[0047] In a specific embodiment, the present invention can obtain the thickness, width and length of the forage film in real time, and dynamically adjust the glue adding parameters according to these parameters, which ensures that the glue adding effect in the production process is consistent with the actual demand, and reduces the situation of excessive glue adding or insufficient glue adding;

[0048] Step 2: Glue quality analysis: Monitor the glue quality in the current monitoring period during the forage film production process to obtain the glue quality status parameters in the current monitoring period during the forage film production process. The specific monitoring process is as follows:

[0049] The glue flow rate at each monitoring time point in the current monitoring time period during the forage film production process is obtained by a flow meter, and the glue flow rate at each monitoring time point in the current monitoring time period during the forage film production process is obtained, and it is marked as a glue speed value, with each monitoring time point as the horizontal coordinate and the glue speed value as the vertical coordinate, and the glue speed values ​​of adjacent monitoring time points are connected by line segments in the order of time to establish a two-dimensional rectangular coordinate system; the midpoint of each line segment on the two-dimensional rectangular coordinate system is obtained, and it is used as the center of the circle, and a circle is drawn with half the length of each line segment as the radius to obtain a ring and calculate the area of ​​the ring, and the difference of the adjacent ring areas is calculated to obtain the ring surface difference, and the ring surface difference is averaged to obtain the ring surface difference mean, and calibrated as the viscosity value;

[0050] The pH value of the glue at each monitoring time point in the current monitoring time period during the forage film production process is obtained by using a pH meter, and the pH value of the glue at each monitoring time point in the current monitoring time period during the forage film production process is obtained. At the same time, the average pH value is calculated and marked as the pH value;

[0051] The color of the glue at each monitoring time point in the current monitoring time period in the forage film production process is obtained by using a glue film color detector, and the color of the glue at each monitoring time point in the current monitoring time period in the forage film production process is obtained, and it is matched with a preset reference glue color threshold. If the glue color at a certain monitoring time point does not match the preset reference glue color threshold successfully, the monitoring time point is recorded as an abnormal glue color change point, and the continuous adjacent abnormal glue color change points are integrated to obtain the duration of each abnormal glue color change, and the longest abnormal glue color change duration is selected as the color change value;

[0052] The glue quality status parameters are composed of the viscosity value, pH value and color change value in the current monitoring period during the forage film production process;

[0053] The colloid coefficient of the current monitoring period in the forage film production process is analyzed to obtain the colloid coefficient. The specific analysis process is as follows:

[0054] By extracting the viscosity value, pH value and color change value from the glue quality state parameters and calibrating them as Zn, Zs and Zb respectively, the three values ​​are extracted for normalization, according to the formula: Get the colloid coefficient JZS, where Zn * 、Zs * and Zb * , respectively represent the reference standard viscosity value, reference standard pH value and reference standard color change value, λ1, λ2 and λ3 represent the weight coefficients of viscosity deviation value, pH deviation value and color change deviation value, respectively, δ nsb It is expressed as a modified impact factor, and the value set is (0.85, 0.97, 0.99). When |Zn-Zn * ∣∈[0,ζ1], then δ nsb Assign a value of 0.85, when |Zn-Zn * ∣∈[ζ1,ζ2], then δ nsb Assign a value of 0.97, when |Zn-Zn * ∣∈[ζ2,ζ3], then δ nsb The value is assigned as 0.99, wherein ζ1, ζ2, and ζ3 are all threshold constants, and 0<ζ1<ζ2<ζ3; the colloid coefficient is compared and analyzed with the preset reference interval. If the colloid coefficient is outside the preset reference interval, step 4 is executed, and the obtained colloid coefficient is sent to step 4;

[0055] In a specific embodiment, the present invention can provide scientific data support for production decisions through calculation and analysis of the glue coefficient. For example, the quality and applicability of the current glue can be judged according to the glue coefficient, so as to adjust the glue adding parameters;

[0056] Step 3: Glue adding equipment quality analysis: Monitor the glue adding equipment in the current monitoring period during the forage film production process to obtain the glue adding equipment status parameters in the current monitoring period during the forage film production process. The specific monitoring process is as follows:

[0057] The pressure waveform data of the glue adding equipment in the current monitoring time period in the forage film production process is acquired by a pressure sensor, and the acquired pressure waveform data is transmitted to an oscilloscope, thereby obtaining the pressure waveform of the glue adding equipment in the current monitoring time period, setting a reference waveform of the pressure waveform, and calculating the overlap between the pressure waveform and the reference waveform. If the overlap is greater than a preset reference overlap threshold, it indicates that the pressure of the glue adding equipment in the current monitoring time period is in a stable state, and a normal signal is generated thereby. If the overlap is less than or equal to the preset reference overlap threshold, it indicates that the pressure of the glue adding equipment in the current monitoring time period is in a fluctuating state, and an abnormal signal is generated thereby. The ratio between the sum of the number of signals marked as normal and the sum of the number of signals marked as abnormal is calculated, thereby obtaining a steady-wave pressure value.

[0058] The vibration amplitude of the glue adding equipment in the current monitoring time period during the forage film production process is obtained, and the vibration amplitude of the glue adding equipment in the current monitoring time period during the forage film production process is obtained. The vibration acceleration change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is monitored in real time by an acceleration sensor, and the vibration acceleration change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is obtained, and the mean analysis is performed to obtain the vibration acceleration characteristic value; at the same time, the vibration displacement change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is monitored, and the vibration displacement change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is obtained, and the mean analysis is performed to obtain the vibration displacement characteristic value; the values ​​of the vibration acceleration characteristic value and the vibration displacement characteristic value are extracted and multiplied by the corresponding weight coefficients respectively and then added, thereby obtaining the amplitude fluctuation value;

[0059] The number of failures of the glue adding equipment in the current monitoring period during the forage film production process is obtained by obtaining the number of failures of the glue adding equipment in the current monitoring period during the forage film production process, and marked as a failure value;

[0060] The state parameters of the glue adding equipment are formed by the steady wave pressure value, amplitude fluctuation value and fault value in the current monitoring period during the forage film production process;

[0061] The quality coefficient of the current monitoring period in the forage film production process is analyzed to obtain the quality coefficient. The specific analysis process is as follows:

[0062] By extracting the steady wave pressure value, amplitude fluctuation value and fault value from the glue adding equipment state parameters and marking them as Sy, Sf and Sz respectively, the three values ​​are extracted for normalization processing, according to the formula: Get the quality coefficient SBP, where Sy * , Sf * and Sz * , respectively represent the reference steady wave pressure value, reference amplitude fluctuation value and reference fault value, μ1, μ2 and μ3 respectively represent the weight coefficients of the steady wave pressure deviation degree, amplitude fluctuation deviation degree and fault deviation degree, and μ1>μ2>μ3, the weight coefficient is used to balance the proportion of each data in the formula calculation, so as to promote the accuracy of the calculation result;

[0063] Compare and analyze the design quality coefficient with the preset design quality threshold. If the design quality coefficient is greater than the preset design quality threshold, execute step 4 and send the obtained design quality coefficient to step 4.

[0064] In a specific embodiment, the present invention can provide scientific data support for production decision-making through the calculation and analysis of the design quality coefficient. For example, the operating status and performance of the current glue adding equipment can be judged according to the design quality coefficient, so as to adjust the glue adding parameters;

[0065] Step 4: Analysis of the impact of adding glue: By monitoring and analyzing the ambient temperature of the current monitoring time period during the production of forage film, the temperature shadow coefficient is obtained, and the impact coefficient of adding glue during the current monitoring time period during the production of forage film is analyzed based on the glue coefficient, the set quality coefficient and the temperature shadow coefficient to obtain the impact coefficient of adding glue. The specific analysis process is as follows:

[0066] Extract the value of the ambient temperature during the current monitoring period in the forage film production process and record it as GD. Extract the reference ambient temperature corresponding to the current monitoring period in the forage film production process from the database and record it as GD. * ;

[0067] The temperature shadow coefficient WYD of the current monitoring period in the forage film production process is calculated according to the formula:

[0068] p1 represents the impact factor when the ambient temperature of the current monitoring period during the forage film production process is greater than the corresponding reference ambient temperature, p2 represents the impact factor when the ambient temperature of the current monitoring period during the forage film production process is less than the corresponding reference ambient temperature, and θ represents a natural constant;

[0069] According to the formula: JYY = JZS × β1 + SBP × β2 + WYD × β3, the glue addition influence coefficient JYY in the current monitoring time period during the forage film production process is obtained, β1, β2, β3 represent the influence factors corresponding to the glue coefficient, set quality coefficient, and temperature shadow coefficient respectively;

[0070] In a specific embodiment, the present invention can comprehensively evaluate the influence of the glue adding state on the forage film production process by comprehensively considering the factors of glue coefficient, design coefficient and temperature shadow coefficient. This comprehensive evaluation method helps to more accurately judge the glue adding effect and optimize the production process.

[0071] Step 5: Glue addition calibration: Obtain the glue addition value of the current monitoring time period in the forage film production process, and analyze the calibrated glue addition value of the current monitoring time period in the forage film production process based on the glue addition influence coefficient of the current monitoring time period in the forage film production process and the glue addition value of the current monitoring time period, and obtain the calibrated glue addition value of the current monitoring time period in the forage film production process. The specific analysis is:

[0072] Match the glue adding influence coefficient of the current monitoring time period in the forage film production process with the glue adding influence value corresponding to each set glue adding influence coefficient to obtain the glue adding influence value of the current monitoring time period in the forage film production process, and make a difference between the glue adding value of the current monitoring time period in the forage film production process and the glue adding influence value to obtain the difference between the glue adding value of the current monitoring time period in the forage film production process and the glue adding influence value, which is used as the calibration glue adding value of the current monitoring time period in the forage film production process;

[0073] In a specific embodiment, the present invention can eliminate the influence of quality factors, equipment factors, and environmental factors on the glue addition value by matching and subtracting the glue addition influence coefficient with the glue addition influence value, and obtain a more accurate calibrated glue addition value, which helps to ensure that the glue addition amount in the production process matches the actual demand and improves the quality and stability of the product. At the same time, the calibration analysis of the glue addition value can timely discover and correct the glue addition value deviation caused by quality changes, environmental changes, and equipment status factors, which helps to enhance the stability of the production process and improve production efficiency and product quality.

[0074] Step 6: Calibration control: Use control equipment to make corresponding control adjustments to the calibration glue addition value of the current monitoring time period during the forage film production process.

[0075] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A method for automatically adding glue for film production, characterized in that: include: Step 1: Set parameters: Obtain the production demand status parameters of the current monitoring time period from the control device, and parse the glue adding parameter settings of the current monitoring time period based on the production demand status parameters. The specific parsing process is as follows: By obtaining the thickness, width and length of the forage film in the production demand status parameters of the current monitoring period, and calibrating them as hd, kd and cd respectively, the values ​​of the three are extracted for normalization processing, according to the set formula: The glue adding value TJ is obtained, wherein e represents a natural constant, η1, η2 and η3 all represent correction coefficients, and the glue adding value is compared and matched with the glue adding state determination table stored in the cloud database, thereby obtaining the glue adding state determination level, and each glue adding value obtained corresponds to a glue adding state determination level, and at the same time, it is matched with the glue adding parameter corresponding to the glue adding state determination level, and the glue adding parameter of the current monitoring time period is obtained, wherein the glue adding parameter includes glue adding amount, glue adding flow rate and glue adding frequency; Step 2: Glue quality analysis: Monitor the glue quality in the current monitoring time period during the forage film production process to obtain glue quality status parameters, and analyze the colloid coefficient in the current monitoring time period during the forage film production process to obtain the colloid coefficient; wherein the glue quality status parameter is composed of the viscosity value, pH value and color change value in the current monitoring time period during the forage film production process; compare and analyze the colloid coefficient with the preset comparison reference interval. If the colloid coefficient is outside the preset comparison reference interval, execute step 4 and send the obtained colloid coefficient to step 4; Step 3: Glue adding equipment quality analysis: monitor the glue adding equipment in the current monitoring time period during the forage film production process to obtain the glue adding equipment status parameters, and analyze the quality coefficient of the current monitoring time period during the forage film production process to obtain the quality coefficient; wherein the glue adding equipment status parameter is composed of the steady wave pressure value, amplitude fluctuation value and fault value of the current monitoring time period during the forage film production process; compare and analyze the quality coefficient with the preset quality threshold value, if the quality coefficient is greater than the preset quality threshold value, execute step 4, and send the obtained quality coefficient to step 4; Step 4: Analysis of the impact of adding glue: By monitoring and analyzing the ambient temperature of the current monitoring time period during the production of forage film, the temperature shadow coefficient is obtained, and the impact coefficient of adding glue in the current monitoring time period during the production of forage film is analyzed based on the glue coefficient, the set quality coefficient and the temperature shadow coefficient, and the impact coefficient of adding glue in the current monitoring time period during the production of forage film is obtained; Step 5: Glue addition calibration: obtain the glue addition value of the current monitoring time period in the forage film production process, and analyze the calibrated glue addition value of the current monitoring time period in the forage film production process based on the glue addition influence coefficient of the current monitoring time period in the forage film production process and the glue addition value of the current monitoring time period, and obtain the calibrated glue addition value of the current monitoring time period in the forage film production process; Step 6: Calibration control: Use the control equipment to make corresponding control adjustments to the calibration glue addition value of the current monitoring time period during the forage film production process; The specific analysis process of the colloid coefficient is as follows: By extracting the viscosity value, pH value and color change value from the glue quality state parameters and calibrating them as Zn, Zs and Zb respectively, the three values ​​are extracted for normalization, according to the formula: Get the colloid coefficient JZS, where Zn * 、Zs * and Zb * They are respectively represented as reference standard viscosity value, reference standard pH value and reference standard color change value, λ1, λ2 and λ3 represent the weight coefficients of viscosity deviation value, pH deviation value and color change deviation value, respectively, δ nsb It is expressed as modified impact factor; The specific analysis process of the design quality coefficient is as follows: By extracting the steady wave pressure value, amplitude fluctuation value and fault value from the glue adding equipment state parameters and marking them as Sy, Sf and Sz respectively, the three values ​​are extracted for normalization processing, according to the formula: Get the quality coefficient SBP, where Sy * , Sf * and Sz * represent the reference steady wave pressure value, the reference amplitude fluctuation value and the reference fault value respectively, μ1, μ2 and μ3 represent the weight coefficients of the steady wave pressure deviation degree, the amplitude fluctuation deviation degree and the fault deviation degree respectively; The influence coefficient of adding glue is analyzed, and the specific analysis process is as follows: Extract the value of the ambient temperature during the current monitoring period in the forage film production process and record it as GD. Extract the reference ambient temperature corresponding to the current monitoring period in the forage film production process from the database and record it as GD. * ; The temperature shadow coefficient WYD of the current monitoring period in the forage film production process is calculated according to the formula: , p1 represents the impact factor when the ambient temperature of the current monitoring time period during the forage film production process is greater than the corresponding reference ambient temperature, p2 represents the impact factor when the ambient temperature of the current monitoring time period during the forage film production process is less than the corresponding reference ambient temperature, and θ represents a natural constant; According to the formula: , the glue adding influence coefficient JYY in the current monitoring time period during the forage film production process is obtained, β1, β2, and β3 are respectively represented as the influence factors corresponding to the glue coefficient, the set quality coefficient, and the temperature shadow coefficient.

2. The method for automatically adding glue for film production according to claim 1, characterized in that: Monitor the glue quality. The specific monitoring process is as follows: The glue flow rate at each monitoring time point in the current monitoring time period during the production of forage film is obtained, and the glue flow rate at each monitoring time point in the current monitoring time period during the production of forage film is obtained, and it is marked as the glue speed value, with each monitoring time point as the horizontal coordinate and the glue speed value as the vertical coordinate, and the glue speed values ​​of adjacent monitoring time points are connected by line segments in the order of time to establish a two-dimensional rectangular coordinate system; the midpoint of each line segment on the two-dimensional rectangular coordinate system is obtained, and it is used as the center of the circle, and a circle is drawn with half the length of each line segment as the radius to obtain a ring and calculate the area of ​​the ring, and the difference of the adjacent ring areas is calculated to obtain the ring surface difference, and the ring surface difference is averaged to obtain the ring surface difference mean, and calibrated as the viscosity value; The pH of the glue at each monitoring time point in the current monitoring time period during the forage film production process is obtained by obtaining the pH of the glue at each monitoring time point in the current monitoring time period during the forage film production process, and the average pH is calculated and marked as the pH value; By acquiring the glue color at each monitoring time point in the current monitoring time period during the forage film production process, the glue color at each monitoring time point in the current monitoring time period during the forage film production process is obtained, and it is matched with the preset reference glue color threshold. If the glue color at a certain monitoring time point does not match the preset reference glue color threshold, the monitoring time point is recorded as an abnormal glue color change point, and the consecutive adjacent abnormal glue color change points are integrated to obtain the abnormal glue color change durations, and the longest abnormal glue color change duration is selected as the color change value.

3. The method for automatically adding glue for film production according to claim 1, characterized in that: The specific process of monitoring the glue adding equipment is as follows: The pressure waveform data of the glue adding equipment in the current monitoring time period in the forage film production process is obtained, and the obtained pressure waveform data is transmitted to the oscilloscope, thereby obtaining the pressure waveform of the glue adding equipment in the current monitoring time period, setting a reference waveform of the pressure waveform, and calculating the overlap between the pressure waveform and the reference waveform. If the overlap is greater than a preset reference overlap threshold, it indicates that the pressure of the glue adding equipment in the current monitoring time period is in a stable state, and a normal signal is generated thereby. If the overlap is less than or equal to the preset reference overlap threshold, it indicates that the pressure of the glue adding equipment in the current monitoring time period is in a fluctuating state, and an abnormal signal is generated thereby. The ratio between the sum of the number of signals marked as normal and the sum of the number of signals marked as abnormal is calculated, thereby obtaining a steady-wave pressure value. The vibration amplitude of the glue adding equipment in the current monitoring time period during the forage film production process is obtained, and the vibration amplitude of the glue adding equipment in the current monitoring time period during the forage film production process is obtained. The vibration acceleration change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is monitored in real time by an acceleration sensor, and the vibration acceleration change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is obtained, and the mean analysis is performed to obtain the vibration acceleration characteristic value; at the same time, the vibration displacement change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is monitored, and the vibration displacement change value of each monitoring time point under the vibration amplitude of the glue adding equipment in the current monitoring time period is obtained, and the mean analysis is performed to obtain the vibration displacement characteristic value; the values ​​of the vibration acceleration characteristic value and the vibration displacement characteristic value are extracted and multiplied by the corresponding weight coefficients respectively and then added, thereby obtaining the amplitude fluctuation value; By acquiring the number of failures of the glue adding equipment in the current monitoring time period during the forage film production process, the number of failures of the glue adding equipment in the current monitoring time period during the forage film production process is obtained and marked as a failure value.

4. The method for automatically adding glue for film production according to claim 1, characterized in that: The calibration glue value is analyzed, and the specific analysis is as follows: Match the glue adding influence coefficient of the current monitoring time period in the forage film production process with the glue adding influence values ​​corresponding to the set glue adding influence coefficients to obtain the glue adding influence value of the current monitoring time period in the forage film production process; subtract the glue adding value from the glue adding influence value of the current monitoring time period in the forage film production process to obtain the difference between the glue adding value and the glue adding influence value of the current monitoring time period in the forage film production process, which is used as the calibrated glue adding value of the current monitoring time period in the forage film production process.

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