CN115816798B - An extrusion preparation method and system for LCP membrane production - Google Patents
An extrusion preparation method and system for LCP membrane productionInfo
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- CN115816798B CN115816798B CN202211439671.9A CN202211439671A CN115816798B CN 115816798 B CN115816798 B CN 115816798B CN 202211439671 A CN202211439671 A CN 202211439671A CN 115816798 B CN115816798 B CN 115816798B
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Abstract
The invention provides an extrusion preparation method and a system for LCP film production, which relate to the technical field of LCP film production, and the method comprises the following steps: the method comprises the steps of collecting equipment data of extrusion equipment, performing sealed temperature-sensing analysis on an inner cavity of a die by data of a forming die, setting temperature control precision by using a temperature-sensing coefficient of the inner cavity of the die, performing temperature segmentation on a charging barrel structure and a nozzle structure of parameters of the forming die, performing temperature transition analysis on each temperature section of a plurality of temperature section sets, inputting the temperature transition coefficients into a judging device, acquiring abnormal transition coefficients, performing temperature control on the extrusion equipment based on the extrusion temperature-sensing parameters, and solving the technical problems that the temperature change in the LC P film generation process in the prior art causes larger fluctuation of the thermal expansion coefficient of the film in the subsequent processing and application process, so that the performance of the finally generated LCP film is unstable, realizing the accurate control of the temperature of the LCP film in the generation process, and improving the stability of the LCP film.
Description
Technical Field
The invention relates to the technical field of LCP film production, in particular to a method and a system for producing an LCP film.
Background
With the development of scientific technology, particularly the development of 5G technology, liquid crystal polymers (LPC) have excellent high-frequency dielectric properties, processing flowability, high heat resistance and dimensional stability, and have very wide application in the field of electronic and electric appliances. The 5G commercial age has been shown to have higher electromagnetic wave transmission speeds and smaller signal propagation losses, requiring materials with as low dielectric constants and losses as possible, and liquid crystal polymers are materials that meet these demanding requirements. Therefore, flexible printed circuit boards (FPCs) based on LPC films are the best materials for 5G terminal antennas.
The temperature change in the existing LCP film forming process causes great fluctuation of the thermal expansion coefficient of the formed film during subsequent processing and application, so that the performance of the finally formed LCP film is unstable.
Disclosure of Invention
The application provides an extrusion preparation method and system for LCP film production, which are used for solving the technical problem that the film produced by temperature transformation in the LCP film production process in the prior art has larger fluctuation of thermal expansion coefficient of the film during subsequent processing and application, so that the performance of the finally produced LCP film is unstable.
In view of the above, the present application provides an extrusion process and system for LCP film production.
The application provides an extrusion preparation method for LCP film production, which comprises the steps of acquiring equipment data of extrusion equipment to obtain data of a forming die, carrying out sealing temperature sensing analysis on a die cavity according to the data of the forming die to obtain a die cavity temperature sensing coefficient, setting temperature control precision according to the die cavity temperature sensing coefficient, carrying out temperature segmentation on a charging barrel structure and a nozzle structure of forming die parameters based on the temperature control precision to obtain a plurality of temperature segment sets, carrying out temperature transition analysis on each temperature segment of the plurality of temperature segment sets to obtain a plurality of temperature transition coefficients, inputting the plurality of temperature transition coefficients into a judging device, obtaining abnormal transition coefficients according to the judging device, and obtaining extrusion temperature control parameters based on the abnormal transition coefficients for carrying out temperature control on the extrusion equipment.
The application provides an extrusion preparation system for LCP film production, which comprises a data acquisition module, an inner cavity temperature sensing coefficient acquisition module, an accuracy control module, a set acquisition module, a temperature transition coefficient acquisition module and an abnormal transition coefficient acquisition module, wherein the data acquisition module is used for acquiring data of a forming die through equipment data acquisition of extrusion equipment, the inner cavity temperature sensing coefficient acquisition module is used for carrying out sealing temperature sensing analysis on an inner cavity of the die according to the data of the forming die to acquire the inner cavity temperature sensing coefficient of the die, the accuracy control module is used for setting temperature control accuracy according to the inner cavity temperature sensing coefficient of the die, the set acquisition module is used for carrying out temperature segmentation on a barrel structure and a nozzle structure of a forming die parameter based on the temperature control accuracy, the temperature transition coefficient acquisition module is used for carrying out temperature transition analysis on each temperature section of the plurality of the temperature section sets to acquire a plurality of temperature transition coefficients, the abnormal transition coefficient acquisition module is used for inputting the plurality of temperature transition coefficients into a temperature judgment device, and the abnormal transition coefficient acquisition module is used for carrying out temperature transition control based on the extrusion equipment.
One or more technical schemes provided by the application have at least the following technical effects or advantages:
the extrusion preparation method for LCP film production provided by the application relates to the technical field of LCP film production, solves the technical problems that the thermal expansion coefficient of a film produced by the temperature change in the LCP film production process in the prior art fluctuates greatly during the subsequent processing and application, so that the performance of the finally produced LCP film is unstable, and realizes the precise temperature control of the LCP film in the production process, thereby improving the stability of the LCP film.
Drawings
FIG. 1 is a schematic flow chart of an extrusion preparation method for LCP film production;
FIG. 2 is a schematic diagram showing a temperature zone control flow in an extrusion preparation method for LCP film production according to the present application;
FIG. 3 is a schematic diagram showing a flow of obtaining the temperature sensing coefficient of the die cavity in the extrusion preparation method of LCP film production;
FIG. 4 is a schematic diagram showing the process of obtaining abnormal transition coefficients in an extrusion preparation method for LCP film production;
fig. 5 is a schematic structural diagram of an extrusion system for LCP film production.
The reference numerals indicate a data obtaining module 1, an inner cavity temperature sensing coefficient obtaining module 2, an accuracy control module 3, a collection obtaining module 4, a temperature transition coefficient obtaining module 5, an abnormal transition coefficient obtaining module 6 and a temperature control module 7.
Detailed Description
The application provides an extrusion preparation method for LCP film production, which is used for solving the technical problem that the film produced by the temperature change in the LCP film production process in the prior art has larger fluctuation of the thermal expansion coefficient of the film during subsequent processing and application, so that the performance of the finally produced LCP film is unstable.
Example 1
As shown in fig. 1, an embodiment of the present application provides a method for extrusion preparation for LCP film production, the method being applied to an extrusion control system for LCP film production, the extrusion control system for LCP film production being communicatively connected to an extrusion apparatus, the method comprising:
Step 100, acquiring equipment data of the extrusion equipment to obtain data of a forming die;
Specifically, the extrusion preparation method for producing the LCP film is applied to an extrusion control system for producing the LCP film, and the extrusion control system for producing the LCP film is in communication connection with extrusion equipment for acquiring temperature parameters.
Based on LCP film extrusion equipment, equipment data acquisition is carried out on the extrusion equipment, wherein the molding equipment of the extrusion equipment can comprise an extruder, a machine head, a cooling device, a side rear device, a trimming device, a corona treatment device, a winding device and the like, so that data corresponding to a molding die are further obtained, and the temperature control of the extrusion equipment is taken as an important reference basis for later realization.
Step 200, performing sealing temperature sensing analysis on the inner cavity of the mold according to the data of the forming mold to obtain the temperature sensing coefficient of the inner cavity of the mold;
Specifically, based on the data of the obtained molding die, the obtained molding die data can comprise a runner, a gate, an exhaust groove and the like, so that the sealing temperature sensing analysis is performed on the die cavity, namely the temperature of the die cavity is extracted by the tightness in the die, wherein for LCP materials, the die temperature is generally set in the range of 70-110 ℃, the temperature sensing coefficient of the die cavity is further obtained, and the temperature control of extrusion equipment is ensured.
Step 300, setting temperature control precision according to the temperature sensing coefficient of the inner cavity of the die;
Specifically, on the basis of the obtained temperature sensing coefficient of the inner cavity of the die, the temperature sensing coefficient of the inner cavity of the die is integrated, and meanwhile, the temperature control precision of the inner cavity of the die is set according to the temperature sensing coefficient, wherein the set temperature control precision refers to the precision degree of temperature control. The maximum temperature difference between the temperature of the instrument in the temperature control process and the actual temperature of the point is the temperature control precision, when the temperature sensing coefficient of the die cavity changes along with the change of the temperature of the die cavity, the temperature control precision is set with an adjustment process based on the change of the obtained temperature sensing coefficient of the die cavity, and the temperature control precision is set with 160 ℃ on the premise of the original temperature control precision and is increased to 180 ℃ at the moment, the temperature sensing coefficient of the corresponding die cavity also changes along with the temperature control precision, and the temperature control precision can be correspondingly adjusted on the basis of 160 ℃ which is set originally according to the difference of the obtained temperature sensing coefficient of the corresponding die cavity, so that the temperature control compaction foundation is carried out on the extrusion equipment for the follow-up realization.
Step 400, based on the temperature control precision, carrying out temperature segmentation on a charging barrel structure and a nozzle structure of the forming mold parameters to obtain a plurality of temperature segment sets;
Specifically, on the basis of the above-mentioned set temperature control precision, the barrel structure and the spout structure of the above-mentioned obtained molding die parameters are subjected to temperature segmentation, wherein when the barrel structure and the spout structure of the molding die parameters are subjected to temperature segmentation, firstly, different temperatures in different places in the barrel structure and the spout structure are subjected to temperature measurement and extraction, and the barrel structure and the spout structure are subjected to different temperature region division based on the extracted different temperatures, and further, the different regions corresponding to the different temperatures are integrated, so that a plurality of temperature segment sets of the barrel structure and the spout structure are obtained, and the effect of improving the precision of the extrusion equipment is realized in temperature control.
S500, performing temperature transition analysis on each temperature segment of the plurality of temperature segment sets to obtain a plurality of temperature transition coefficients, wherein the plurality of temperature transition coefficients are temperature transition between adjacent temperature segments;
Specifically, on the basis of the obtained barrel structure and the obtained multiple temperature segment sets of the spout structure, performing temperature transition analysis on each temperature segment in the multiple temperature segment sets, wherein the temperature transition refers to the step of transferring the current temperature from the current temperature to another temperature, namely taking the current temperature as a starting point, possibly increasing or decreasing the temperature, taking the current temperature increasing or decreasing process as temperature transition, further extracting and integrating the temperature change in the obtained temperature transition, namely increasing or decreasing the temperature, and further obtaining multiple temperature transition coefficients of each temperature segment in the integrated mode, wherein the obtained multiple temperature transition coefficients refer to the temperature transition between adjacent temperature segments, and have a profound influence on temperature control by the extrusion equipment realized later.
Step 600, inputting the temperature transition coefficients into a judging device, and acquiring abnormal transition coefficients according to the judging device;
Specifically, the obtained plurality of temperature transition coefficients are input into a judging device, wherein the judging device is used for judging the occurrence condition of an event related to each temperature transition coefficient in the temperature transition triggering condition and determining how to output a final result, the triggering condition is that the temperature of an acquired area is changing, namely heating or cooling, the judging device can judge whether the acquired area which is changing is in a normal temperature range, if the acquired area is changing in the normal temperature range, the judging device judges that the acquired area is normal, the output is not performed, if the acquired area is not changing in the normal temperature range, the temperature change of the area is extracted, and further the abnormal transition coefficient is output, so that the control of the temperature of the extrusion equipment is better realized according to the output abnormal transition coefficient.
And step S700, based on the abnormal transition coefficient, acquiring an extrusion temperature control parameter for controlling the temperature of the extrusion equipment.
Specifically, the basic temperature control parameter is obtained on the basis of the abnormal transition coefficient output by the judging device, wherein the extrusion temperature control parameter refers to a parameter of temperature control of extrusion equipment when the LCP film is extruded, the parameter changes along with the change of the temperature extruded by the extrusion equipment, and meanwhile, the current extrusion temperature control parameter is adjusted according to the abnormal transition coefficient in the working process of the extrusion equipment, so that the temperature of the extrusion equipment is better controlled.
Further, the invention provides an extrusion preparation method and a system for LCP film production, which relate to the technical field of LCP film production, and the method comprises the steps of collecting equipment data of extrusion equipment, carrying out sealing temperature sensing analysis on a die cavity by data of a forming die, setting temperature control precision by a temperature sensing coefficient of the die cavity, carrying out temperature segmentation on a barrel structure and a nozzle structure of forming die parameters, carrying out temperature transition analysis on each temperature section of a plurality of temperature section sets, inputting the temperature transition coefficients into a judging device, acquiring abnormal transition coefficients, and carrying out temperature control on the extrusion equipment based on extrusion temperature control parameters.
Further, as shown in fig. 2, step S500 of the present application further includes:
Step S510, connecting a temperature control system of the forming die to obtain a heating control module and a cooling control module;
Step S520, acquiring a plurality of heating segment sets for heating according to the heating control module;
Step S530, acquiring a plurality of cooling segment sets for cooling according to the cooling control module;
s540, acquiring a temperature rise section transition coefficient and a temperature drop section transition coefficient by using the plurality of temperature rise section sets and the plurality of temperature drop section sets;
And step S550, generating a heating control module and a cooling control module to perform partition control based on the heating section transition coefficient and the cooling section transition coefficient respectively.
Specifically, the temperature control system of the forming die is connected, a temperature control module and a cooling control module contained in the temperature control system are obtained, wherein the temperature control module is used for controlling the temperature rise of a plurality of temperature rising section sets, the cooling control module is used for controlling the temperature reduction of the plurality of temperature falling section sets, further obtaining the plurality of temperature rising section sets and the plurality of temperature falling section sets for temperature rise from the temperature rising control module and the cooling control module respectively, further integrating the obtained plurality of temperature rising section sets and the plurality of temperature falling section sets, thereby obtaining a temperature rising section transition coefficient and a temperature falling section transition coefficient, wherein the temperature rising section transition coefficient refers to the fact that the current temperature in each temperature rising section in the plurality of temperature rising section sets is taken as a starting point, the number of temperature change characteristics is measured as the temperature rising section transition coefficient when the current temperature in each temperature rising section in the plurality of temperature falling section sets is taken as the starting point, the number of temperature change characteristics is measured as the temperature change transition coefficient when the current temperature in each temperature rising section in the plurality of temperature falling section sets is reduced to the temperature in the temperature phase, further obtaining the temperature change characteristics is measured as the temperature change transition coefficient of the temperature change section transition coefficient, and the temperature change characteristics are obtained when the temperature change is not corresponding to the temperature change of the temperature rising section and the temperature change module is controlled according to the temperature change conditions of the temperature change zone, and the temperature change is obtained in the temperature change conditions of the temperature change zone is controlled according to the temperature change conditions, and the temperature change conditions is achieved, and the temperature change is achieved according to the temperature change conditions is achieved.
Further, as shown in fig. 3, step S200 of the present application further includes:
Step S210, acquiring mold material information, mold wall layer structure information and a mold closed connection structure of the forming mold;
Step S220, performing mold tightness analysis according to the mold material information, the mold wall layer structure information and the mold closed connection structure to obtain a sealing coefficient;
and S230, performing seal temperature sensing analysis according to the seal coefficient to generate the temperature sensing coefficient of the inner cavity of the die.
Specifically, the mold material information, the mold wall layer structure information and the mold closed connection structure of the forming mold are obtained, wherein the mold material information of the forming mold can be standard metal materials, but the filling level materials are easy to wear due to the mold, so that proper selection is needed when the metal materials are used for the mold, the mold is required to be quenched if necessary, the mold wall layer structure information refers to the structure of the mold wall layer, whether a surface layer, an inner coating layer, a heat preservation layer and the like exist in the mold wall layer structure, the mold closed connection structure refers to the place where the mold is closed and connected, further, on the basis of the obtained mold material information, the obtained mold wall layer structure information and the obtained mold closed connection structure, mold tightness analysis is conducted on the forming mold, so that the sealing coefficient of the mold is obtained, and sealing temperature sensing analysis is conducted on the basis of the obtained sealing coefficient, wherein the sealing temperature sensing analysis is conducted on the mold, namely the temperature sensing sensitivity is conducted on the temperature loss, so that the temperature sensing coefficient of the mold is obtained, so that the efficiency is ensured when the temperature control is conducted on the extrusion equipment.
Further, step S220 of the present application includes:
Step S221, inputting the mold material information, the mold wall layer structure information and the mold closed connection structure into a tightness evaluation module, wherein the tightness evaluation module comprises an analysis module, a comparison module and an output module;
Step S222, acquiring a tightness evaluation result according to the analysis module;
step S223, inputting the tightness evaluation result into the comparison module, and comparing the real-time tightness detection data obtained by the tightness detection unit in the comparison module with the tightness evaluation result to obtain a tightness detection result;
and step 224, obtaining the sealing coefficient according to the sealing detection result.
Specifically, the tightness evaluation module is a neural network which can be continuously subjected to self-iterative optimization in machine learning, and is obtained through training an analysis data set and a comparison data set, wherein each group of analysis data in the analysis data set comprises mold material information data, mold wall layer structure information data and mold closed connection structure data, and the comparison data set is tightness evaluation data corresponding to the analysis data set one by one.
Further, the construction process of the tightness evaluation module is that each group of analysis data in the analysis data set is input into the tightness evaluation module, tightness evaluation results are output through the analysis data, and output comparison adjustment of the tightness evaluation module is carried out on the analysis data and the corresponding comparison data, namely, the real-time tightness detection data obtained by the sealing detection unit in the obtained comparison data set are compared with the obtained tightness evaluation results, when the output tightness evaluation results of the tightness evaluation module are consistent with the real-time tightness detection data obtained by the sealing detection unit, the tightness detection results are obtained, the tightness evaluation of the current group is finished, all analysis data in the analysis data set are analyzed to be finished, and the tightness evaluation module is analyzed to be finished.
In order to ensure the accuracy of the tightness evaluation module, the tightness evaluation module may be tested by the test data set, for example, the test accuracy may be set to 85%, and when the test accuracy of the test data set satisfies 85%, the tightness evaluation module is constructed.
The mold material information data, the mold wall layer structure information data and the mold closed connection structure data are input into a tightness evaluation module, the sealing coefficient is output, and the sealing temperature sensing is further analyzed through the obtained sealing coefficient, so that the temperature control of the extrusion equipment is better realized.
Further, step S230 of the present application further includes:
Step S231, acquiring sensing temperature data of a first temperature sensor, wherein the first temperature sensor is assembled on the outer side of the forming die;
step S232, acquiring sensing temperature data of a second temperature sensor, wherein the second temperature sensor is assembled on the inner side of the forming die;
Step S233, performing temperature sensing loss analysis according to the sensed temperature data of the first temperature sensor and the sensed temperature data of the second temperature sensor to obtain temperature sensing loss data;
And step S234, obtaining the temperature sensing coefficient of the inner cavity of the die according to the temperature sensing loss data.
Specifically, the temperature sensing loss analysis is performed through sensing temperature data of a plurality of temperature sensors connected with the forming die, the plurality of temperature sensors respectively comprise a first temperature sensor and a second temperature sensor, the sensing temperature data of the first temperature sensor is firstly obtained through the first temperature sensor, the first temperature sensor is assembled at the outer side of the forming die, the sensing temperature data of the second temperature sensor is obtained through the second temperature sensor, the second temperature sensor is assembled at the inner side of the forming die, the temperature sensing loss analysis is performed according to the obtained sensing temperature data of the first temperature sensor and the obtained sensing temperature data of the second temperature sensor, and the exemplary temperature sensing data, the outer side area, the inner side and outer side temperature difference and the model insulation thickness of the first temperature sensor are further calculated according to a heat loss calculation formula:
q= (thermal conductivity coefficient x die cavity area x temperature difference x heat preservation time/die thickness) x 860
The temperature sensing loss data are finally obtained through calculation, and the obtained temperature sensing loss data are used as the basis, so that flash and deformation caused by non-uniformity of the die cavity due to temperature change are called as the temperature sensitivity of the die cavity, the temperature sensing coefficient of the die cavity is further obtained, and the technical effect of providing reference for temperature control of extrusion equipment is finally achieved.
Further, as shown in fig. 4, step S600 of the present application further includes:
Step S610, inputting the plurality of temperature transition coefficients into the judging device, wherein the judging device comprises a preset transition coefficient, judging the plurality of temperature transition coefficients and the preset transition coefficient one by one, and obtaining N temperature transition coefficients which do not meet the preset transition coefficient;
And S620, outputting the N transition coefficients as the abnormal transition coefficients.
Specifically, a plurality of temperature transition coefficients obtained after temperature transition analysis is performed on each temperature segment of a plurality of temperature segment sets are input into a judging device, wherein the obtained judging device comprises preset transition coefficients, the obtained plurality of temperature transition coefficients and the obtained preset transition coefficients are judged one by one, namely the judging device can judge whether a plurality of acquired regions which are changing in the preset transition coefficients, if the acquired regions are not changing in the preset transition coefficients, namely the preset transition coefficients are not met, the temperature changes of the plurality of regions are extracted, namely N temperature transition coefficients, wherein the extracted N temperature transition coefficients can be regarded as abnormal transition coefficients, the obtained preset transition coefficients are preset by relevant technicians according to the temperature change data quantity, and finally the obtained abnormal transition coefficients are correspondingly output as output information, so that the technical effect of temperature control of extrusion equipment is achieved.
Further, step S560 of the present application further includes:
Step S561, a temperature rise time control module is connected to the temperature rise control module, and a temperature reduction time control module is connected to the temperature reduction control module;
S562, performing time control on the forming die by using the temperature rise time control module and the temperature reduction time control module, and acquiring an activation instruction when the accumulated time of the temperature rise time control module reaches a preset temperature rise time length;
and step S563, activating the cooling time control module according to the activation instruction to perform cooling control on the forming die.
Specifically, the temperature-rising time control module and the temperature-lowering time control module are correspondingly connected with the temperature-rising control module and the temperature-lowering control module respectively, wherein the temperature-rising time control module and the temperature-lowering time control module take the current temperature as the initial temperature, start timing when the initial temperature begins to rise or fall, and time control is carried out on the forming die by the obtained temperature-rising time control module and the obtained temperature-lowering time control module, namely, the temperature rising or fall of the forming die is limited, when the accumulated time of the obtained temperature-rising time control module reaches the preset temperature-rising time length, an activating instruction is obtained, and if the temperature-rising time control module measures that the temperature-rising time length exceeds 30s, an activating instruction is generated, and the obtained temperature-lowering time control module is further activated by the activating instruction, so that the forming die is cooled and finally, the technical effect of the extrusion equipment on temperature control is achieved.
Example two
Based on the same inventive concept as the extrusion process for producing an LCP film in the previous examples, as shown in fig. 5, the present application provides an extrusion system for producing an LCP film, comprising:
The data acquisition module 1 is used for acquiring equipment data of the extrusion equipment to obtain data of the forming die;
The inner cavity temperature sensing coefficient obtaining module 2 is used for carrying out sealing temperature sensing analysis on the inner cavity of the die according to the data of the forming die to obtain the temperature sensing coefficient of the inner cavity of the die;
the precision control module 3 is used for setting temperature control precision according to the temperature sensing coefficient of the inner cavity of the die;
The set obtaining module 4 is used for carrying out temperature segmentation on the barrel structure and the nozzle structure of the forming die parameters based on the temperature control precision, so as to obtain a plurality of temperature segment sets;
The temperature transition coefficient obtaining module 5 is configured to perform temperature transition analysis on each temperature segment of the plurality of temperature segment sets, and obtain a plurality of temperature transition coefficients, where the plurality of temperature transition coefficients are temperature transitions between adjacent temperature segments;
An abnormal transition coefficient obtaining module 6, wherein the abnormal transition coefficient obtaining module 6 is used for inputting the plurality of temperature transition coefficients into a judging device, and obtaining an abnormal transition coefficient according to the judging device;
and the temperature control module 7 is used for acquiring extrusion temperature control parameters based on the abnormal transition coefficient and controlling the temperature of the extrusion equipment.
Further, the system further comprises:
the temperature control module is used for connecting a temperature control system of the forming die to obtain a heating control module and a cooling control module;
the plurality of heating section collection modules are used for acquiring a plurality of heating section collections used for heating according to the heating control module;
The cooling section collection modules are used for obtaining a plurality of cooling section collections used for cooling according to the cooling control module;
The temperature Duan Guodu coefficient module and the temperature Duan Guodu coefficient module are used for acquiring a temperature rising section transition coefficient and a temperature lowering section transition coefficient according to the plurality of temperature rising section sets and the plurality of temperature lowering section sets;
the partition control module is used for generating a heating control module and a cooling control module to conduct partition control based on the heating section transition coefficient and the cooling section transition coefficient respectively.
Further, the system further comprises:
The structure information module is used for acquiring the mold material information, the mold wall layer structure information and the mold closed connection structure of the forming mold;
The sealing coefficient module is used for carrying out mold tightness analysis according to the mold material information, the mold wall layer structure information and the mold closed connection structure to obtain a sealing coefficient;
And the die cavity temperature sensing coefficient module is used for performing sealing temperature sensing analysis according to the sealing coefficient to generate the die cavity temperature sensing coefficient.
Further, the system further comprises:
The tightness evaluation module is used for inputting the mold material information, the mold wall layer structure information and the mold closed connection structure into the tightness evaluation module, wherein the tightness evaluation module comprises an analysis module, a comparison module and an output module;
The tightness evaluation result module is used for acquiring tightness evaluation results according to the analysis module;
The seal detection result module is used for inputting the seal evaluation result into the comparison module, and comparing the real-time seal detection data obtained by the seal detection unit in the comparison module with the seal evaluation result to obtain a seal detection result;
And the sealing coefficient acquisition module is used for acquiring the sealing coefficient according to the sealing detection result.
Further, the system further comprises:
The first temperature sensing data module is used for acquiring sensing temperature data of a first temperature sensor, wherein the first temperature sensor is assembled on the outer side of the forming die;
The second temperature sensing data module is used for acquiring sensing temperature data of a second temperature sensor, wherein the second temperature sensor is assembled on the inner side of the forming die;
The temperature sensing loss data module is used for performing temperature sensing loss analysis according to the sensing temperature data of the first temperature sensor and the sensing temperature data of the second temperature sensor to acquire temperature sensing loss data;
the die cavity temperature sensing coefficient acquisition module is used for acquiring the die cavity temperature sensing coefficient according to the temperature sensing loss data.
Further, the system further comprises:
The judging module is used for inputting the plurality of temperature transition coefficients into the judging device, wherein the judging device comprises preset transition coefficients, the plurality of temperature transition coefficients and the preset transition coefficients are judged one by one, and N temperature transition coefficients which do not meet the preset transition coefficients are obtained;
and the output module is used for outputting the N transition coefficients as the abnormal transition coefficients.
Further, the system further comprises:
The connection module is used for connecting the temperature rise time control module with the temperature rise control module and connecting the temperature reduction time control module with the temperature reduction control module;
The activation instruction acquisition module is used for controlling the time of the forming die by the heating time control module and the cooling time control module, and acquiring an activation instruction when the accumulated time of the heating time control module reaches the preset heating time;
And the cooling control module is used for activating the cooling time control module according to the activating instruction to perform cooling control on the forming die.
From the foregoing detailed description of an extrusion process for producing LCP films, those skilled in the art will readily recognize that an extrusion process and system for producing LCP films in this example are relatively simple to describe for the devices disclosed in the examples, as they correspond to the methods disclosed in the examples, and the relevant points are described in the methods section.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. An extrusion control method for LCP film production, the method being applied to an LCP film production system, the system being communicatively coupled to an extrusion apparatus, the method comprising:
Acquiring equipment data of the extrusion equipment to obtain data of a forming die;
Performing sealing temperature sensing analysis on the inner cavity of the mold according to the data of the forming mold to obtain the temperature sensing coefficient of the inner cavity of the mold;
setting temperature control precision according to the temperature sensing coefficient of the inner cavity of the die;
Based on the temperature control precision, carrying out temperature segmentation on a charging barrel structure and a nozzle structure of the forming die to obtain a plurality of temperature segment sets;
Performing temperature transition analysis on each temperature section of the plurality of temperature section sets to obtain a plurality of temperature transition coefficients, wherein the plurality of temperature transition coefficients are temperature transition between adjacent temperature sections, and the temperature transition refers to a stage that the development of the current temperature is changed from the current temperature to another temperature;
inputting the temperature transition coefficients into a judging device, and acquiring abnormal transition coefficients according to the judging device;
based on the abnormal transition coefficient, an extrusion temperature control parameter is obtained and used for controlling the temperature of the extrusion equipment.
2. The method of claim 1, wherein the method further comprises:
the temperature control system is connected with the forming die to obtain a heating control module and a cooling control module;
acquiring a plurality of heating segment sets for heating according to the heating control module;
Acquiring a plurality of cooling segment sets for cooling according to the cooling control module;
Acquiring a temperature rise section transition coefficient and a temperature drop section transition coefficient by using the plurality of temperature rise section sets and the plurality of temperature drop section sets;
And generating a heating control module and a cooling control module to carry out partition control based on the heating section transition coefficient and the cooling section transition coefficient respectively.
3. The method of claim 1, wherein the performing a seal temperature sensing analysis on the mold cavity according to the data of the molding mold to obtain the mold cavity temperature sensing coefficient comprises:
Acquiring mold material information, mold wall layer structure information and a mold closed connection structure of the forming mold;
performing mold tightness analysis according to the mold material information, the mold wall layer structure information and the mold closed connection structure to obtain a sealing coefficient;
And performing seal temperature sensing analysis according to the seal coefficient to generate the temperature sensing coefficient of the inner cavity of the die.
4. A method according to claim 3, wherein said performing a mold tightness analysis based on said mold material information, mold wall structure information and mold closure connection structure to obtain a sealing coefficient comprises:
Inputting the mold material information, the mold wall layer structure information and the mold closed connection structure into a tightness evaluation module, wherein the tightness evaluation module comprises an analysis module, a comparison module and an output module;
acquiring a tightness evaluation result according to the analysis module;
inputting the tightness evaluation result into the comparison module, and comparing the real-time tightness detection data obtained by the tightness detection unit in the comparison module with the tightness evaluation result to obtain a tightness detection result;
and acquiring the sealing coefficient according to the sealing detection result.
5. The method of claim 3, wherein the forming die is in communication with a temperature sensor, the method further comprising:
acquiring sensing temperature data of a first temperature sensor, wherein the first temperature sensor is assembled on the outer side of the forming die;
acquiring sensing temperature data of a second temperature sensor, wherein the second temperature sensor is assembled on the inner side of the forming die;
according to the sensed temperature data of the first temperature sensor and the sensed temperature data of the second temperature sensor, performing temperature sensing loss analysis to obtain temperature sensing loss data;
and obtaining the temperature sensing coefficient of the inner cavity of the die according to the temperature sensing loss data.
6. The method of claim 1, wherein said inputting the plurality of temperature transition coefficients into a determiner, based on which abnormal transition coefficients are obtained, comprises:
Inputting the plurality of temperature transition coefficients into the judging device, wherein the judging device comprises preset transition coefficients, judging the plurality of temperature transition coefficients and the preset transition coefficients one by one, and acquiring N temperature transition coefficients which do not meet the preset transition coefficients;
and outputting the N transition coefficients as the abnormal transition coefficients.
7. The method of claim 2, wherein the generating a warming control module and a cooling control module perform zone control, further comprising:
The temperature rise control module is connected with the temperature rise time control module, and the temperature reduction control module is connected with the temperature reduction time control module;
the temperature rise time control module and the temperature reduction time control module are used for controlling the time of the forming die, and when the accumulated time of the temperature rise time control module reaches the preset temperature rise time length, an activation instruction is obtained;
And activating the cooling control module according to the activation instruction to perform cooling control on the forming die.
8. An extrusion control system for LCP film production, the system in communication with an extrusion apparatus, the system comprising:
The data acquisition module is used for acquiring equipment data of the extrusion equipment to obtain data of the forming die;
The inner cavity temperature-sensing coefficient obtaining module is used for carrying out sealing temperature-sensing analysis on the inner cavity of the mold according to the data of the forming mold to obtain the temperature-sensing coefficient of the inner cavity of the mold;
the precision control module is used for setting temperature control precision according to the temperature sensing coefficient of the inner cavity of the die;
The set obtaining module is used for carrying out temperature segmentation on a charging barrel structure and a nozzle structure of the forming die based on the temperature control precision to obtain a plurality of temperature segment sets;
The temperature transition coefficient obtaining module is used for carrying out temperature transition analysis on each temperature section of the plurality of temperature section sets to obtain a plurality of temperature transition coefficients, wherein the plurality of temperature transition coefficients are temperature transition between adjacent temperature sections, and the temperature transition refers to the stage that the current temperature is changed into another temperature;
the abnormal transition coefficient obtaining module is used for inputting the plurality of temperature transition coefficients into a judging device and obtaining abnormal transition coefficients according to the judging device;
And the temperature control module is used for acquiring extrusion temperature control parameters based on the abnormal transition coefficient and controlling the temperature of the extrusion equipment.
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| WO2022030831A1 (en) * | 2020-08-03 | 2022-02-10 | 주식회사 유디엠텍 | Process abnormality detection device and method using analysis of control section temperature signal |
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