Insert injection molding integration method and system based on earphone shell integration

Abstract

The invention relates to the technical field of insert injection molding integration, in particular to an insert injection molding integration method and system based on earphone shell integration, and the method comprises the steps: printing an earphone shell integration mold, obtaining a metal insert set, obtaining an initial insert mold, carrying out gradient pressure maintaining on the initial insert mold, and obtaining a pressure maintaining insert mold; performing simulation injection molding operation on the cooling forming mold to obtain optimal simulation parameters, performing multi-stage injection molding operation on the cooling forming mold according to the optimal simulation parameters, and monitoring the multi-stage injection molding operation in real time to obtain production process parameters; and if the production temperature mean value is within a preset standard production temperature interval and the production pressure mean value is within a preset standard pressure interval, taking the optimal simulation parameter as an optimal production parameter, and producing the integrated earphone shell according to the optimal production parameter. And insert injection molding integration based on earphone shell integration is completed based on the integrated earphone shell. The production efficiency and the structural strength of the earphone shell can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of insert injection molding integration, and particularly relates to an insert injection molding integration method and system based on earphone shell integration. BACKGROUND

[0002] Earphone shell integration refers to integrating each component of an earphone shell into a whole structure rather than assembling from multiple independent parts. Insert injection molding integration refers to a manufacturing process that integrates a pre-processed metal insert and plastic material together through injection molding to form a composite part with specific functions and structures.

[0003] With the continuous progress of science and technology and the increasing requirements of consumers on the appearance and performance of electronic products, the traditional earphone shell manufacturing usually adopts the mode of assembling multiple independent parts, which has some limitations, such as not simple enough appearance and not strong overall sense. Secondly, the parameter control in the traditional injection molding process is not accurate enough, and molding defects are prone to occur, which affects the product quality. Therefore, how to improve the production efficiency and structural strength of the earphone shell is a technical problem to be solved. SUMMARY

[0004] The present application provides an insert injection molding integration method and computer readable storage medium based on earphone shell integration, which mainly aims to improve the production efficiency and structural strength of the earphone shell.

[0005] To achieve the above object, the application provides an insert injection molding integration method based on earphone shell integration, which comprises the following steps: receiving an earphone shell integration preparation instruction, designing an earphone shell integration model according to the earphone shell integration preparation instruction and preset design parameters, and printing an earphone shell integration mold according to the earphone shell integration model; obtaining a metal insert set, performing surface etching on each metal insert in the metal insert set to obtain an engraved metal insert set, and installing each engraved metal insert in the engraved metal insert set by using a pre-constructed micro sensor to obtain a pre-embedded metal insert set; obtaining an initial insert mold according to the earphone shell integration mold and the pre-embedded metal insert set, performing gradient pressure preservation on the initial insert mold to obtain a pressure-preserved insert mold; cooling the pressure-preserved insert mold to obtain a cooled forming mold, performing simulated injection molding operation on the cooled forming mold to obtain optimal simulation parameters; performing multi-stage injection molding operation on the cooled forming mold according to the optimal simulation parameters, and monitoring the multi-stage injection molding operation in real time to obtain production process parameters, wherein the production process parameters include a production temperature mean value and a production pressure mean value; if the production temperature mean value is not located in a preset standard production temperature interval or the production pressure mean value is not located in a preset standard pressure interval, adjusting the optimal simulation parameters to obtain calibrated simulation parameters, taking the calibrated simulation parameters as the optimal simulation parameters, returning to the step of performing multi-stage injection molding operation on the cooled forming mold according to the optimal simulation parameters until the production temperature mean value is located in the preset standard production temperature interval and the production pressure mean value is located in the preset standard pressure interval; if the production temperature mean value is located in the preset standard production temperature interval and the production pressure mean value is located in the preset standard pressure interval, taking the optimal simulation parameters as optimal production parameters; producing an integrated earphone shell according to the optimal production parameters, and completing the insert injection molding integration based on the earphone shell integration based on the integrated earphone shell.

[0006] Optionally, the surface etching of each metal insert in the metal insert set to obtain the engraved metal insert set comprises: obtaining a honeycomb pattern, importing the honeycomb pattern into a pre-constructed ultraviolet laser marking machine to obtain an initial marking machine, grouping the metal insert set to obtain a metal insert group set, wherein the metal insert group set comprises a plurality of metal insert groups; sequentially extracting a metal insert group from the metal insert group set, and performing the following operations on the extracted metal insert group: sequentially extracting a metal insert from the metal insert group, and performing the following operations on the extracted metal insert: fixing the metal insert to obtain a fixed metal insert, focusing the fixed metal insert by using the initial marking machine to obtain a focused marking machine, and performing rough engraving on the metal insert by using the focused marking machine and a preset laser parameter to obtain a rough-engraved metal insert; performing finishing on the rough-engraved metal insert to obtain a finished metal insert, and collecting the finished metal inserts to obtain a finished metal insert set; obtaining the insert aperture of each finished metal insert in the finished metal insert set to obtain an insert aperture set; if there is an insert aperture in the insert aperture set that is less than a preset lower limit of the insert aperture or there is an insert aperture in the insert aperture set that is greater than a preset upper limit of the insert aperture, starting a pre-constructed alarm device, adjusting the power of the laser parameter according to the started alarm device to obtain a calibrated laser parameter, taking the calibrated laser parameter as the laser parameter, and returning to the step of sequentially extracting a metal insert group from the metal insert group set until the metal insert group set is empty; if there is no insert aperture in the insert aperture set that is less than the preset lower limit of the insert aperture and there is no insert aperture in the insert aperture set that is greater than the preset upper limit of the insert aperture, taking the finished metal insert set as an engraved metal insert sample set; and collecting the engraved metal insert sample set to obtain the engraved metal insert set.

[0007] Optionally, the initial insert mold obtained according to the earphone shell integrated mold and the pre-embedded metal insert set comprises: performing the following operations on each pre-embedded metal insert in the pre-embedded metal insert set: obtaining a metal insert image according to the pre-embedded metal insert, performing grayscale on the metal insert image to obtain a grayscale insert image, and performing filtering on the grayscale insert image to obtain a filtered insert image; performing feature extraction on the filtered insert image to obtain an insert feature point set, wherein the insert feature point set comprises a plurality of insert feature points, and each insert feature point comprises an insert position and an insert descriptor; obtaining an insert template feature point set based on a preset insert feature template, wherein the insert template feature point set comprises a plurality of insert template feature points, and each insert template feature point comprises an insert template position and an insert template descriptor; constructing a conversion matrix based on the insert feature point set and the insert template feature point set; collecting the conversion matrix to obtain a conversion matrix set, and obtaining the initial insert mold according to the conversion matrix set, the earphone shell integrated mold, a pre-constructed robot, and the pre-embedded metal insert set.

[0008] Optionally, the constructing the conversion matrix based on the insert feature point set and the insert template feature point set comprises: extracting an insert feature point from the insert feature point set in sequence, confirming a target insert template feature point from the insert template feature point set according to the insert feature point, and calculating the Euclidean distance between the insert descriptor and the insert template descriptor according to the insert feature point and the target insert template feature point; comparing the Euclidean distance with a preset standard Euclidean distance; if the Euclidean distance is less than the preset standard Euclidean distance, combining the insert feature point and the target insert template feature point into a matching feature point pair, taking the insert feature point as a first insert feature point, and taking the target insert template feature point as a first insert template feature point; respectively collecting the matching feature point pair, the first insert feature point and the first insert template feature point to obtain a matching feature point pair set, a first insert feature point set and a first insert template feature point set; and constructing the conversion matrix according to the matching feature point pair set, the first insert feature point set and the first insert template feature point set.

[0009] Optionally, the constructing the conversion matrix according to the matching feature point pair set, the first insert feature point set and the first insert template feature point set comprises: calculating a horizontal coordinate insert centroid and a vertical coordinate insert centroid according to the first insert feature point set, and calculating a horizontal coordinate template centroid and a vertical coordinate template centroid according to the first insert template feature point set; calculating a horizontal coordinate offset according to the horizontal coordinate insert centroid and the horizontal coordinate template centroid, and calculating a vertical coordinate offset according to the vertical coordinate insert centroid and the vertical coordinate template centroid; obtaining a relative rotation angle set based on the matching feature point pair set, calculating an average rotation angle according to the relative rotation angle set, and constructing a rotation matrix according to the average rotation angle; constructing a translation vector according to the horizontal coordinate offset and the vertical coordinate offset, and constructing the conversion matrix according to the rotation matrix and the translation vector, wherein the conversion matrix is represented as: wherein, the conversion matrix is represented as, the average rotation angle is represented as, the cosine function is represented as, the sine function is represented as, the horizontal coordinate offset is represented as, the vertical coordinate offset is represented as.

[0010] Optionally, the obtaining the set of relative rotation angles based on the set of matched feature point pairs comprises: sequentially extracting matched feature point pairs from the set of matched feature point pairs, and performing the following operations on each of the extracted matched feature point pairs: extracting a neighboring matched feature point pair from the set of matched feature point pairs according to the matched feature point pair, wherein the neighboring matched feature point pair is adjacent to the matched feature point pair and lags behind the matched feature point pair; obtaining an image feature point vector and a template feature point vector according to the matched feature point pair and the neighboring matched feature point pair, and calculating a vector dot product and a vector cross product according to the image feature point vector and the template feature point vector; calculating an image vector modulus according to the image feature point vector, calculating a template vector modulus according to the template feature point vector, calculating a cosine of an included angle according to the vector dot product, the image vector modulus and the template vector modulus, and calculating a sine of the included angle according to the vector cross product, the image vector modulus and the template vector modulus; and calculating a relative rotation angle according to the cosine of the included angle and the sine of the included angle, wherein the calculation formula of the relative rotation angle is as follows: wherein, denotes the relative rotation angle, denotes the sine of the included angle, denotes the cosine of the included angle, denotes an inverse tangent function; taking the neighboring matched feature point pair as the matched feature point pair, returning to the step of extracting the neighboring matched feature point pair from the set of matched feature point pairs until the set of matched feature point pairs is empty; and obtaining a set of relative rotation angles by aggregating the relative rotation angles.

[0011] Optionally, the obtaining the initial insert mold according to the set of conversion matrices, the integrated earphone shell mold, the pre-constructed robot and the set of pre-embedded metal inserts comprises: confirming a set of metal insert positions according to the integrated earphone shell mold, wherein each metal insert position in the set of metal insert positions corresponds to a pre-embedded metal insert in the set of pre-embedded metal inserts; and performing the following operations on each pre-embedded metal insert in the set of pre-embedded metal inserts: confirming a target metal insert position and a target conversion matrix from the set of metal insert positions and the set of conversion matrices respectively according to the pre-embedded metal insert, obtaining a current insert coordinate according to the pre-embedded metal insert, and confirming an insert position coordinate according to the target metal insert position; planning a moving route according to the current insert coordinate and the insert position coordinate, installing the pre-embedded metal insert at the target metal insert position according to the moving route, the pre-constructed robot, the vacuum chuck and the target conversion matrix, and obtaining a positioned metal insert; and obtaining the initial insert mold by aggregating the positioned metal inserts.

[0012] Optionally, the performing a simulation injection operation on the cooling forming mold to obtain optimal simulation parameters comprises: obtaining a historical cooling rate interval, a historical holding pressure interval and a historical melt temperature interval; performing preliminary evaluation on the historical cooling rate interval, the historical holding pressure interval and the historical melt temperature interval according to a pre-constructed surrogate model to obtain a cooling rate sensitive interval, a holding pressure sensitive interval and a melt temperature sensitive interval; calculating a cooling rate sensitive mean value, a holding pressure sensitive mean value and a melt temperature sensitive mean value according to the cooling rate sensitive interval, the holding pressure sensitive interval and the melt temperature sensitive interval, and generating simulation parameters according to the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value; obtaining a mold size of the cooling forming mold and a polymer material, inputting the mold size into a pre-constructed mold flow analysis software to perform mold flow analysis, and obtaining cooling efficiency distribution data; performing simulation on the polymer material by using a pre-constructed molecular dynamics simulation software and the simulation parameters to obtain micro-molecular crystallization data; generating a cooling efficiency thermodynamic map according to the cooling efficiency distribution data and the micro-molecular crystallization data, obtaining a maximum temperature and a minimum temperature according to the cooling efficiency thermodynamic map; calculating a temperature difference according to the maximum temperature and the minimum temperature, and comparing the temperature difference with a preset temperature difference threshold; if the temperature difference is greater than the preset temperature difference threshold, optimizing the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value to obtain a sub-optimal cooling rate sensitive mean value, a sub-optimal holding pressure sensitive mean value and a sub-optimal melt temperature sensitive mean value, taking the sub-optimal cooling rate sensitive mean value, the sub-optimal holding pressure sensitive mean value and the sub-optimal melt temperature sensitive mean value as the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value respectively, and returning to the step of generating simulation parameters according to the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value until the temperature difference is less than or equal to the preset temperature difference threshold; and if the temperature difference is less than or equal to the preset temperature difference threshold, taking the simulation parameters as the optimal simulation parameters.

[0013] Optionally, the multi-stage injection operation is performed on the cooling forming mold according to the optimal simulation parameters, and the multi-stage injection operation is monitored in real time to obtain the production process parameters, including: obtaining the internal injection material and the external injection material, drying the internal injection material and the external injection material to obtain the dried internal injection material and the dried external injection material; confirming the injection molding machine, wherein the injection molding machine comprises two barrels and a switching valve; introducing the dried internal injection material and the dried external injection material into the two barrels respectively to obtain the internal injection material barrel and the external injection material barrel; starting the injection molding machine; using the started injection molding machine, the external injection material barrel and the preset first-stage injection machine parameters to perform first-stage injection on the cooling forming mold to obtain the first-stage forming mold and the first-stage injection time; confirming the first-stage injection machine, the first-stage pressure value set and the first-stage temperature value set based on the first-stage injection time, the preset first-stage threshold and the injection machine performing the first-stage injection; cleaning the first-stage injection machine to obtain the clean injection machine; using the switching valve to switch the external injection material barrel to the internal injection material barrel to obtain the pre-injection internal barrel; using the clean injection machine, the pre-injection internal barrel and the preset second-stage injection parameters to perform second-stage injection on the first-stage forming mold and record the time in real time to obtain the second-stage injection time; confirming the second-stage pressure value set and the second-stage temperature value set based on the second-stage injection time and the preset second-stage threshold; obtaining the production pressure average value according to the second-stage pressure value set and the first-stage pressure value set, and obtaining the production temperature average value according to the first-stage temperature value set and the second-stage temperature value set; and taking the production pressure average value and the production temperature average value as the production process parameters.

[0014] To achieve the above object, the application further provides an insert injection integrated system based on earphone shell integration, comprising: an earphone shell mold design module, configured to receive an earphone shell integration preparation instruction, design an earphone shell integration model according to the earphone shell integration preparation instruction and preset design parameters, and print an earphone shell integration mold according to the earphone shell integration model; a metal insert pre-embedding module, configured to obtain a metal insert set, perform surface etching on each metal insert in the metal insert set to obtain an engraved metal insert set, install each engraved metal insert in the engraved metal insert set by using a pre-constructed micro sensor to obtain a pre-embedded metal insert set, and obtain an initial insert mold according to the earphone shell integration mold and the pre-embedded metal insert set; a gradient pressure holding is performed on the initial insert mold to obtain a pressure holding insert mold; an injection parameter optimization module, configured to cool the pressure holding insert mold to obtain a cooled forming mold, perform simulated injection operation on the cooled forming mold to obtain optimal simulation parameters, perform multi-stage injection operation on the cooled forming mold according to the optimal simulation parameters, and monitor the multi-stage injection operation in real time to obtain production process parameters, wherein the production process parameters include a production temperature mean value and a production pressure mean value; if the production temperature mean value is not located in a preset standard production temperature interval or the production pressure mean value is not located in a preset standard pressure interval, the optimal simulation parameters are adjusted to obtain calibrated simulation parameters, the calibrated simulation parameters are taken as the optimal simulation parameters, the step of performing multi-stage injection operation on the cooled forming mold according to the optimal simulation parameters is returned, and the process is repeated until the production temperature mean value is located in the preset standard production temperature interval and the production pressure mean value is located in the preset standard pressure interval; if the production temperature mean value is located in the preset standard production temperature interval and the production pressure mean value is located in the preset standard pressure interval, the optimal simulation parameters are taken as optimal production parameters; and an earphone shell integration completion module, configured to produce an integrated earphone shell according to the optimal production parameters, and complete the insert injection integration based on earphone shell integration based on the integrated earphone shell.

[0015] To solve the above problems, the application further provides an electronic device, which comprises a memory storing at least one instruction and a processor executing the instruction stored in the memory to implement the insert injection integrated method based on earphone shell integration described above. To solve the above problems, the application further provides a computer readable storage medium, which stores at least one instruction, and the at least one instruction is executed by a processor in an electronic device to implement the insert injection integrated method based on earphone shell integration described above.

[0016] The application is to solve the problems described in the background art. The application receives earphone shell integrated preparation instructions, designs an earphone shell integrated model according to the earphone shell integrated preparation instructions and preset design parameters, and prints an earphone shell integrated mold according to the earphone shell integrated model. The application designs a model according to the earphone shell integrated preparation instructions and design parameters, which can ensure that the shape, size and function of the earphone shell fully meet the design requirements, realize personalized customization, meet the needs of different users, obtain a metal insert set, perform surface etching on each metal insert in the metal insert set to obtain an engraved metal insert set, install each engraved metal insert in the engraved metal insert set using a pre-constructed micro sensor to obtain a pre-embedded metal insert set. The application can increase the surface roughness of the metal insert by etching the surface of the metal insert, improve the bonding force between the metal insert and the plastic, make the earphone shell more secure during use, and prevent the metal insert from loosening or falling off. The application obtains an initial insert mold according to the earphone shell integrated mold and the pre-embedded metal insert set, performs gradient pressure preservation on the initial insert mold to obtain a pressure-preserved insert mold. The application can make the plastic fill the mold more uniformly, avoid defects such as cavities and bubbles, and improve the forming quality and appearance quality of the earphone shell. The application cools the pressure-preserved insert mold to obtain a cooled forming mold, performs simulated injection molding on the cooled forming mold to obtain optimal simulation parameters. The cooling process can make the plastic solidify quickly, ensure the shape and size stability of the earphone shell, reduce deformation and shrinkage, and improve the precision and consistency of the product. The application performs multi-stage injection molding on the cooled forming mold according to the optimal simulation parameters and monitors the multi-stage injection molding in real time to obtain production process parameters, including production temperature mean and production pressure mean. The application can adjust the injection molding parameters according to different injection molding stages to make the plastic flow and fill the mold more uniformly, improve the quality and performance of the product, and monitor the production process parameters in real time to discover abnormal conditions in the injection molding process in time and take corresponding measures for adjustment to ensure the stability and reliability of the production process. If the production temperature mean is not within the preset standard production temperature range or the production pressure mean is not within the preset standard pressure range, the optimal simulation parameters are adjusted to obtain calibrated simulation parameters, which are used as the optimal simulation parameters, and the step of performing multi-stage injection molding on the cooled forming mold according to the optimal simulation parameters is returned until the production temperature mean is within the preset standard production temperature range and the production pressure mean is within the preset standard pressure range. The application continuously adjusts the injection molding parameters to keep the production process parameters within the standard range, which can ensure the quality stability of the earphone shell and meet the design requirements, improve the product pass rate and market competitiveness. If the production temperature mean is within the preset standard production temperature range and the production pressure mean is within the preset standard pressure range, the optimal simulation parameters are used as optimal production parameters.The integrated earphone shell is produced according to optimal production parameters, and insert injection integration based on the earphone shell integration is completed based on the integrated earphone shell, so that the integrated design and manufacturing of the earphone shell are realized, the number of parts and the assembly process are reduced, the production efficiency and the overall performance of the product are improved, meanwhile, through the insert injection integration technology, the metal insert, the micro sensor and other functional components can be integrated with the earphone shell, the multifunction and the intelligence of the earphone are realized, and the demand of users for high-quality earphones is met. Therefore, the production efficiency and the structural strength of the earphone shell can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 A flowchart of an insert injection integration method based on earphone shell integration provided by an embodiment of the present application is shown. Figure 2 A function module diagram of an insert injection integration system based on earphone shell integration provided by an embodiment of the present application is shown. Figure 3 A structural diagram of an electronic device for implementing the insert injection integration method based on earphone shell integration provided by an embodiment of the present application is shown. DETAILED DESCRIPTION

[0018] An insert injection integration method based on earphone shell integration is provided in the embodiments of the present application. The execution subject of the insert injection integration method based on earphone shell integration includes but is not limited to at least one of electronic devices capable of being configured to execute the method provided in the embodiments of the present application, such as a server and a terminal. In other words, the insert injection integration method based on earphone shell integration can be executed by software or hardware installed in a terminal device or a server device, and the software can be a blockchain platform. The server includes but is not limited to a single server, a server cluster, a cloud server or a cloud server cluster.

[0019] REFERENCE Figure 1 A flowchart of an insert injection integration method based on earphone shell integration provided by an embodiment of the present application is shown. In the embodiment, the insert injection integration method based on earphone shell integration includes: S1, receiving an earphone shell integration preparation instruction, designing an earphone shell integration model according to the earphone shell integration preparation instruction and preset design parameters, and printing an earphone shell integration mold according to the earphone shell integration model.

[0020] It should be explained that the integrated headphone shell manufacturing instruction is a system-issued instruction that triggers the entire integrated headphone shell manufacturing process. Design parameters refer to the specific values ​​used to design the integrated headphone shell model. For example, design parameters include the shape, size, structure, and material of the headphone shell. The integrated headphone shell mold refers to the mold that designs the shape and structure of the headphone shell based on the integrated headphone shell manufacturing instruction and the preset design parameters.

[0021] S2. Obtain the metal insert set, perform surface etching on each metal insert in the metal insert set to obtain the engraved metal insert set, and use the pre-built micro sensor to install each engraved metal insert in the engraved metal insert set to obtain the pre-embedded metal insert set.

[0022] It should be explained that a micro-sensor refers to a miniaturized sensor characterized by high precision, high sensitivity, and low power consumption, used to detect and measure various physical quantities such as temperature, pressure, acceleration, and humidity. The phrase "installing the micro-sensor onto each engraved metal insert in the engraved metal insert set" refers to attaching the micro-sensor to the engraved metal insert using adhesive. A pre-embedded metal insert refers to a metal insert with a micro-sensor installed after surface etching. A pre-embedded metal insert set refers to the collection of all pre-embedded metal inserts.

[0023] Specifically, the process of surface etching is performed on each metal insert in the metal insert set to obtain an engraved metal insert set, including: The honeycomb pattern is obtained and imported into a pre-built UV laser marking machine to obtain the initial marking machine. The metal insert set is then grouped to obtain a metal insert group set, which includes multiple metal insert sets. Extract metal insert groups sequentially from the metal insert group set, and perform the following operation on each extracted metal insert group: Extract the metal inserts sequentially from the metal insert group, and perform the following operations on each extracted metal insert: The metal insert is fixed to obtain a fixed metal insert. The fixed metal insert is focused using an initial marking machine to obtain a focused marking machine. The metal insert is coarsely engraved using the focused marking machine and preset laser parameters to obtain a coarsely engraved metal insert. The rough-carved metal inlays are refined to obtain refined metal inlays. The refined metal inlays are then compiled to obtain a set of refined metal inlays. Obtain the insert aperture of each refined metal insert in the refined metal insert set to obtain the insert aperture set; If the insert aperture set contains an insert aperture smaller than the preset lower limit of the insert aperture or contains an insert aperture larger than the preset upper limit of the insert aperture, a pre-constructed alarm device is started, the laser parameters are adjusted in power according to the started alarm device, the calibrated laser parameters are obtained, the calibrated laser parameters are taken as the laser parameters, and the step of sequentially extracting the metal insert group from the metal insert group set is returned until the metal insert group set is an empty set; If the insert aperture set does not contain an insert aperture smaller than the preset lower limit of the insert aperture and does not contain an insert aperture larger than the preset upper limit of the insert aperture, the refined metal insert set is taken as the engraved metal insert sample set. The engraved metal insert sample set is summarized to obtain an engraved metal insert set.

[0024] It should be explained that the metal insert refers to a metal part embedded in a plastic shell and tightly combined with the plastic material through an injection molding process to form a whole. The metal insert set refers to a set composed of all metal inserts. The metal insert group in the embodiment of the application includes five metal inserts. The honeycomb pattern refers to a pattern with a regular hexagonal structure set by humans, similar to a beehive. The purpose of the honeycomb pattern in the embodiment of the application is to improve the bonding force between the metal insert and the plastic material, and to increase the surface friction to prevent the metal insert from shifting during the injection molding process. The ultraviolet laser marking machine is a device that uses an ultraviolet laser beam to mark and etch on the surface of a material. The initial marking machine refers to the ultraviolet laser marking machine prepared for etching operation after the honeycomb pattern is introduced. The fixation of the metal insert refers to the fixation of the metal insert using a clamp to ensure that the metal insert remains stable during etching and improves the precision and quality of etching. The focusing marking machine refers to the marking machine that precisely focuses the laser beam on the surface of the metal insert by adjusting the focusing system of the marking machine before etching operation. The laser parameters are parameters that are set by humans in advance to control the laser beam during laser etching, including laser power, pulse frequency, scanning speed, etc. The rough etching of the metal insert using the focusing marking machine and the preset laser parameters refers to the preliminary etching of the metal insert using the focusing marking machine and the preset laser parameters to form the preliminary outline of the honeycomb pattern, which is used to quickly remove the material on the surface of the metal and form a rough pattern outline to provide a basis for subsequent finishing operations. The rough etched metal insert refers to the metal insert after rough etching. The finishing of the rough etched metal insert refers to the second trimming of the rough etched metal insert to form the final honeycomb pattern. The finished metal insert refers to the metal insert obtained after the second finishing operation. The finished metal insert set refers to a set composed of all finished metal inserts.

[0025] It can be understood that the insert aperture refers to the diameter of the hole etched on the surface of the metal insert. The insert aperture set refers to a set consisting of all insert apertures. The lower limit of the insert aperture refers to the minimum preset insert aperture value. The upper limit of the insert aperture refers to the maximum preset insert aperture value. The alarm device is a device for issuing an alarm when it is detected that the insert aperture in the insert aperture set is less than the preset lower limit of the insert aperture or the insert aperture in the insert aperture set is greater than the preset upper limit of the insert aperture. The calibrated laser parameter refers to the parameter after adjusting the laser parameter. The engraved metal insert sample set refers to a set of refined metal inserts in which there is no insert aperture less than the preset lower limit of the insert aperture in the insert aperture set and there is no insert aperture greater than the preset upper limit of the insert aperture in the insert aperture set. The engraved metal insert set refers to a set obtained by aggregating the engraved metal insert sample set.

[0026] S3, obtaining an initial insert mold according to the earphone shell integrated mold and the pre-embedded metal insert set, and performing gradient pressure preservation on the initial insert mold to obtain a pressure-preserved insert mold.

[0027] It should be explained that the step of performing gradient pressure preservation on the initial insert mold to obtain a pressure-preserved insert mold comprises: setting a first-stage high-pressure parameter, using the first-stage high-pressure parameter to perform first-stage pressure preservation on the initial insert mold to obtain a first pressure-preserved insert mold; setting a second-stage low-pressure parameter, and using the second-stage low-pressure parameter to perform second-stage pressure preservation on the first pressure-preserved insert mold to obtain the pressure-preserved insert mold. The first-stage high-pressure parameter refers to a high-pressure parameter artificially set for use in the first stage during pressure preservation. The high-pressure parameter includes a high-pressure preservation pressure, a high-pressure preservation time, and a high-pressure preservation temperature. For example, the high-pressure preservation pressure is set to 100 MPa, the high-pressure preservation time is 30 seconds, and the high-pressure preservation temperature is maintained at 200°C. The high-pressure preservation pressure can ensure that the plastic material in the mold is fully filled in the mold cavity during molding, reducing the generation of bubbles and cavities and improving the molding quality. The first pressure-preserved insert mold refers to the insert mold after being processed by the first-stage high-pressure parameter. The second-stage low-pressure parameter refers to a low-pressure parameter artificially set for use in the second stage during pressure preservation. The low-pressure parameter includes a low-pressure preservation pressure, a low-pressure preservation time, and a low-pressure preservation temperature. The low-pressure preservation pressure can reduce the stress of the mold and the plastic material during molding, avoiding deformation or damage caused by excessive pressure. The pressure-preserved insert mold refers to the final insert mold obtained after the first-stage and second-stage pressure preservation. For example, the low-pressure preservation pressure is set to 50 MPa, the low-pressure preservation time is 60 seconds, and the low-pressure preservation temperature is maintained at 180°C.

[0028] In detail, the step of obtaining an initial insert mold according to the earphone shell integrated mold and the pre-embedded metal insert set comprises: For each pre-embedded metal insert, the following operations are performed: According to the pre-embedded metal insert, a metal insert image is obtained, the metal insert image is grayed to obtain a gray insert image, the gray insert image is filtered to obtain a filtered insert image; Feature extraction is performed on the filtered insert image to obtain an insert feature point set, wherein the insert feature point set includes a plurality of insert feature points, and each insert feature point includes an insert position and an insert descriptor; Based on a preset insert feature template, an insert template feature point set is obtained, wherein the insert template feature point set includes a plurality of insert template feature points, and each insert template feature point includes an insert template position and an insert template descriptor; Based on the insert feature point set and the insert template feature point set, a conversion matrix is constructed; The conversion matrices are summarized to obtain a conversion matrix set, and an initial insert mold is obtained according to the conversion matrix set, the earphone shell integrated mold, a pre-constructed robot, and the pre-embedded metal insert set.

[0029] It should be explained that the metal insert image obtained according to the pre-embedded metal insert is obtained by photographing the pre-embedded metal insert using a camera. The metal insert image is grayed using image processing software. For example, the image processing software is Photoshop, MATLAB. The gray insert image is the metal insert image after gray processing. The gray insert image is filtered using a filtering algorithm. The filtering algorithm described in the embodiment of the application is prior art, which will not be described here. The filtered insert image is the gray insert image after filtering. The feature extraction is performed on the filtered insert image using an edge detection algorithm. For example, the edge detection algorithm is Canny edge detection, Sobel edge detection. The insert descriptor is a feature descriptor extracted from the filtered insert image, which is used to describe the features of the metal insert. The insert position is the position of the insert feature point in the filtered insert image. The insert feature template is a predefined insert feature template, which is used to match the extracted insert feature. The insert template position is the position of the insert template feature point in the insert feature template. The insert template descriptor is a feature descriptor extracted from the insert feature template, which is used to describe the features of the template. The conversion matrix is used to align the insert feature point set and the insert template feature point set to determine the position and attitude of the insert. The conversion matrix set is a set composed of all conversion matrices.

[0030] In detail, the conversion matrix is constructed based on the insert feature point set and the insert template feature point set, including: The embedding feature points are extracted sequentially from the embedding feature point set. The target embedding template feature points are identified from the embedding template feature point set based on the embedding feature points. The Euclidean distance between the embedding descriptor and the embedding template descriptor is calculated based on the embedding feature points and the target embedding template feature points. Compare the Euclidean distance with the preset standard Euclidean distance; If the Euclidean distance is less than the preset standard Euclidean distance, the insert feature point and the target insert template feature point are combined into a matching feature point pair, with the insert feature point as the first insert feature point and the target insert template feature point as the first insert template feature point. The matching feature point pairs, the first embedding feature points, and the first embedding template feature points are summarized respectively to obtain the matching feature point pair set, the first embedding feature point set, and the first embedding template feature point set; Construct a transformation matrix based on the set of matching feature point pairs, the set of feature points of the first embedding, and the set of feature points of the first embedding template.

[0031] It should be explained that the target embedding template feature point refers to the feature point extracted from the embedding template feature point set that matches the currently extracted embedding feature point. Euclidean distance refers to the straight-line distance between two points in multidimensional space. The formula for calculating the Euclidean distance between the embedding descriptor and the embedding template descriptor in the step of calculating the Euclidean distance between the embedding descriptor and the embedding template descriptor based on the embedding feature point and the target embedding template feature point is as follows: in, Represents Euclidean distance. Indicates the dimension of the descriptor. Indicates the first Dimensional embedding descriptors, Indicates the first The embedding template descriptor is defined by dimension. Standard Euclidean distance refers to a pre-defined threshold used to determine the similarity between the embedding descriptor and the embedding template descriptor. A matching feature point pair is a feature point pair consisting of an embedding feature point whose Euclidean distance is less than the pre-defined standard Euclidean distance and a target embedding template feature point. The first embedding feature point is the embedding feature point corresponding to the embedding feature point whose Euclidean distance is less than the pre-defined standard Euclidean distance. The first embedding template feature point is the target embedding template feature point corresponding to the embedding feature point whose Euclidean distance is less than the pre-defined standard Euclidean distance. The matching feature point pair set is the set of all matching feature point pairs. The first embedding feature point set is the set of all first embedding feature points. The first embedding template feature point set is the set of all first embedding template feature points.

[0032] Specifically, the step of constructing a transformation matrix based on the set of matching feature point pairs, the set of first embedding feature points, and the set of first embedding template feature points includes: calculating the horizontal coordinate insert centroid and the vertical coordinate insert centroid according to the first insert feature point set, and calculating the horizontal coordinate template centroid and the vertical coordinate template centroid according to the first insert template feature point set; calculating the horizontal coordinate offset according to the horizontal coordinate insert centroid and the horizontal coordinate template centroid, and calculating the vertical coordinate offset according to the vertical coordinate insert centroid and the vertical coordinate template centroid; obtaining a set of relative rotation angles based on the set of matched feature point pairs, calculating an average rotation angle according to the set of relative rotation angles, and constructing a rotation matrix according to the average rotation angle, wherein the rotation matrix is represented as: wherein, represents the rotation matrix, represents the average rotation angle, represents the cosine function, represents the sine function; constructing a translation vector according to the horizontal coordinate offset and the vertical coordinate offset, wherein the translation vector is represented as: wherein, represents the translation vector, represents the horizontal coordinate offset, represents the vertical coordinate offset; constructing a conversion matrix according to the rotation matrix and the translation vector, wherein the conversion matrix is represented as: wherein, represents the conversion matrix, represents the average rotation angle, represents the cosine function, represents the sine function, represents the horizontal coordinate offset, represents the vertical coordinate offset.

[0033] It should be explained that in the step of calculating the horizontal coordinate insert centroid and the vertical coordinate insert centroid according to the first insert feature point set, the calculation formula for calculating the horizontal coordinate insert centroid according to the first insert feature point set is as follows: wherein, represents the horizontal coordinate insert centroid, represents the number of first insert feature points in the first insert feature point set, represents the first insert feature point, The horizontal coordinate of the first insert feature point. The method for calculating the vertical coordinate insert centroid according to the first insert feature point set and the method for calculating the horizontal coordinate template centroid and the vertical coordinate template centroid according to the first insert template feature point set are the same as the method for calculating the horizontal coordinate insert centroid according to the first insert feature point set, and will not be repeated here.

[0034] Importantly, the horizontal coordinate offset refers to the direct difference between the horizontal coordinate insert centroid and the horizontal coordinate template centroid. The vertical coordinate offset refers to the difference between the vertical coordinate insert centroid and the vertical coordinate template centroid. The average rotation angle refers to the average value of all relative rotation angles in the matching feature point pair set.

[0035] In detail, the method for obtaining the relative rotation angle set based on the matching feature point pair set comprises: In turn, the matching feature point pairs are extracted from the matching feature point pair set, and the following operations are performed on the extracted matching feature point pairs: According to the matching feature point pair, an adjacent matching feature point pair is extracted from the matching feature point pair set, wherein the adjacent matching feature point pair is adjacent to and lags behind the matching feature point pair; According to the matching feature point pair and the adjacent matching feature point pair, an image feature point vector and a template feature point vector are obtained, and a vector dot product and a vector cross product are calculated according to the image feature point vector and the template feature point vector; An image vector module is calculated according to the image feature point vector, a template vector module is calculated according to the template feature point vector, a cosine of the included angle value is calculated according to the vector dot product, the image vector module and the template vector module, and a sine of the included angle value is calculated according to the vector cross product, the image vector module and the template vector module; The relative rotation angle is calculated according to the cosine of the included angle value and the sine of the included angle value, wherein the calculation formula of the relative rotation angle is as follows: wherein, represents the relative rotation angle, represents the sine of the included angle, represents the cosine of the included angle, represents the inverse tangent function; The adjacent matching feature point pair is taken as the matching feature point pair, and the step of extracting the adjacent matching feature point pair from the matching feature point pair set according to the matching feature point pair is returned until the matching feature point pair set is empty; The relative rotation angles are summarized to obtain the relative rotation angle set.

[0036] It should be explained that the image feature point vector refers to a vector from the insert feature point of the current matching feature point pair to the insert feature point of the adjacent matching feature point pair. The template feature point vector refers to a vector from the insert template feature point of the current matching feature point pair to the insert template feature point of the adjacent matching feature point pair. The vector dot product refers to the sum of the product of the image feature point vector and the template feature point vector. The vector cross product refers to the vector product of the image feature point vector and the template feature point vector in a two-dimensional plane. The image vector module refers to the length of the image feature point vector. The template vector module refers to the length of the template feature point vector. In the step of calculating the cosine of the included angle according to the vector dot product, the image vector module and the template vector module, the cosine of the included angle = vector dot product / (image vector module template vector module). In the step of calculating the sine of the included angle according to the vector cross product and the image vector module and the template vector module, the sine of the included angle = vector cross product / (image vector module template vector module). The set of relative rotation angles refers to a set composed of all relative rotation angles.

[0037] For example, the insert feature point in the matching feature point pair is , the target insert template feature point is , the insert feature point in the adjacent matching feature point pair is , the adjacent target insert template feature point is , the image feature point vector is , the template feature point vector is , the vector dot product calculated according to the image feature point vector and the template feature point vector is: , the vector cross product calculated according to the image feature point vector and the template feature point vector is: , the image vector module is: , .

[0038] In detail, the initial insert mold is obtained according to the set of conversion matrices, the earphone shell integrated mold, the pre-constructed robot and the set of pre-embedded metal inserts, comprising: The set of metal insert positions is determined according to the earphone shell integrated mold, wherein the metal insert positions in the set of metal insert positions correspond one-to-one to the pre-embedded metal inserts in the set of pre-embedded metal inserts; The following operations are performed on each pre-embedded metal insert in the set of pre-embedded metal inserts: The target metal insert position and the target conversion matrix are determined from the set of metal insert positions and the set of conversion matrices according to the pre-embedded metal insert, the current insert coordinates are obtained according to the pre-embedded metal insert, and the insert position coordinates are determined according to the target metal insert position; According to the current insert coordinates and the insert position coordinates, a moving route is planned, according to the moving route, the pre-constructed vacuum chuck, the robot and the target conversion matrix, the pre-buried metal insert is installed at the target metal insert position, and a positioning metal insert is obtained. The positioning metal inserts are summarized to obtain an initial insert mold.

[0039] It should be explained that the metal insert position set confirmed according to the earphone shell integrated mold refers to determining the accurate position of each metal insert according to the structure and function requirements of the earphone in the design stage of the earphone shell integrated mold, and obtaining the metal insert position set. The target metal insert position and the target conversion matrix respectively refer to extracting the position and the conversion matrix corresponding to the current pre-buried metal insert from the metal insert position set and the conversion matrix set. The current insert coordinates refer to the actual position coordinates of the pre-buried metal insert in the current state. The insert position coordinates refer to the coordinates of the target metal insert position. The current insert coordinates and the insert position coordinates in the embodiment of the application are both two-dimensional coordinates. The moving route planned according to the current insert coordinates and the insert position coordinates refers to calculating the optimal path from the current insert coordinates to the insert position coordinates by using a path planning algorithm (such as A* algorithm, Dijkstra algorithm, etc.). The vacuum chuck is a device for adsorbing objects by using the principle of vacuum. The vacuum chuck in the embodiment of the application is installed in the earphone shell integrated mold and is used for adsorbing the pre-buried metal insert to prevent the insert from moving during the injection molding process. The positioning metal insert refers to the metal insert accurately placed at the target position after being installed by the robot. The initial insert mold refers to the earphone shell integrated mold formed after the installation of all pre-buried metal inserts is completed.

[0040] S4, cooling the pressure-keeping insert mold to obtain a cooled forming mold, and performing a simulated injection molding operation on the cooled forming mold to obtain optimal simulation parameters.

[0041] It should be explained that the cooling of the pressure-keeping insert mold refers to cooling the pressure-keeping insert mold by using a cooling device. For example, the cooling device is a fan. The cooled forming mold refers to the earphone shell having a predetermined shape and size formed after the plastic material in the mold is completely solidified after the cooling process.

[0042] In detail, the simulated injection molding operation performed on the cooled forming mold to obtain the optimal simulation parameters comprises: obtaining a historical cooling rate interval, a historical pressure-keeping pressure interval and a historical melt temperature interval, preliminarily evaluating the historical cooling rate interval, the historical pressure-keeping pressure interval and the historical melt temperature interval according to a pre-constructed proxy model to obtain a cooling rate sensitive interval, a pressure-keeping pressure sensitive interval and a melt temperature sensitive interval; The cooling rate sensitive mean value, the packing pressure sensitive mean value and the melt temperature sensitive mean value are calculated according to the cooling rate sensitive interval, the packing pressure sensitive interval and the melt temperature sensitive interval, and the simulation parameters are generated according to the cooling rate sensitive mean value, the packing pressure sensitive mean value and the melt temperature sensitive mean value; The mold size of the cooling forming mold and the polymer material are obtained, the mold size is input into the pre-constructed mold flow analysis software for mold flow analysis, and cooling efficiency distribution data is obtained; The polymer material is simulated by using the pre-constructed molecular dynamics simulation software and the simulation parameters, and micro-molecular crystallization data is obtained; A cooling efficiency thermodynamic diagram is generated according to the cooling efficiency distribution data and the micro-molecular crystallization data, and the maximum temperature and the minimum temperature are obtained according to the cooling efficiency thermodynamic diagram; The temperature difference is calculated according to the maximum temperature and the minimum temperature, and the temperature difference is compared with the preset temperature difference threshold; If the temperature difference is greater than the preset temperature difference threshold, the cooling rate sensitive mean value, the packing pressure sensitive mean value and the melt temperature sensitive mean value are optimized to obtain sub-optimal cooling rate sensitive mean value, sub-optimal packing pressure sensitive mean value and sub-optimal melt temperature sensitive mean value, and the sub-optimal cooling rate sensitive mean value, the sub-optimal packing pressure sensitive mean value and the sub-optimal melt temperature sensitive mean value are used as the cooling rate sensitive mean value, the packing pressure sensitive mean value and the melt temperature sensitive mean value, respectively, and the step of generating simulation parameters according to the cooling rate sensitive mean value, the packing pressure sensitive mean value and the melt temperature sensitive mean value is returned until the temperature difference is less than or equal to the preset temperature difference threshold; If the temperature difference is less than or equal to the preset temperature difference threshold, the simulation parameters are used as the optimal simulation parameters.

[0043] It should be explained that the historical cooling rate interval, the historical holding pressure interval and the historical melt temperature interval respectively refer to the range of cooling rate, the range of holding pressure and the range of melt temperature recorded in the past production process. The cooling rate sensitive interval, the holding pressure sensitive interval and the melt temperature sensitive interval respectively refer to the cooling rate interval, the holding pressure interval and the melt temperature interval after evaluation by the proxy model. The cooling rate sensitive mean value refers to the average value of all cooling rate sensitive values in the cooling rate sensitive interval. The holding pressure sensitive mean value refers to the average value of all holding pressure sensitive values in the holding pressure sensitive interval. The melt temperature sensitive mean value refers to the average value of all melt temperature sensitive values in the melt temperature sensitive interval. The simulation parameter refers to the parameter composed of the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value. The mold size refers to the specific size parameters of the cooling forming mold, including the length, width, height and wall thickness of the mold. The polymer material refers to the plastic material used for injection molding. The mold flow analysis software is a computer software used to simulate the plastic injection molding process, which can predict the flow, cooling and forming of plastic in the mold. The cooling efficiency distribution data refers to the distribution data of the cooling efficiency in the mold output by the mold flow analysis software, which is used to evaluate the cooling effect of the mold and help optimize the cooling system design. The molecular dynamics simulation software is a computer software used to simulate the molecular behavior of polymer materials at the microscopic scale, which can predict the crystallization behavior of materials. The microscopic molecular crystallization data refers to the crystallization data of polymer materials at the microscopic scale output by the molecular dynamics simulation software. The cooling efficiency thermogram refers to a chart representing the distribution of cooling efficiency, which is used to evaluate the cooling effect of the mold. The maximum temperature is the highest temperature value corresponding to the cooling forming mold obtained from the cooling efficiency thermogram. The minimum temperature is the lowest temperature value corresponding to the cooling forming mold obtained from the cooling efficiency thermogram. The temperature difference threshold refers to the temperature difference value set by humans in advance. The optimal simulation parameter refers to the simulation parameter after adjustment, whose temperature difference is not greater than the preset temperature difference threshold. The step of optimizing the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value is: if the temperature difference is greater than the temperature threshold, the cooling rate sensitive mean value can be increased to improve the cooling efficiency or the holding pressure sensitive mean value can be increased to ensure that the plastic material is fully filled in the mold or the melt temperature sensitive mean value can be increased to improve the flowability of the plastic material. For example, if the cooling efficiency thermogram is due to the excessive cooling rate, the cooling rate sensitive value can be appropriately reduced; if the hot spot area is related to the excessive holding pressure, the holding pressure sensitive value can be appropriately reduced. The suboptimal cooling rate sensitive mean value, the suboptimal holding pressure sensitive mean value and the suboptimal melt temperature sensitive mean value respectively refer to the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value after optimization adjustment.

[0044] S5. Perform multi-stage injection molding operation on the cooling molding mold according to the optimal simulation parameters, and monitor the multi-stage injection molding operation in real time to obtain the production process parameters, including the average production temperature and the average production pressure.

[0045] Specifically, the process of performing multi-stage injection molding operations on the cooling molding die based on optimal simulation parameters, and monitoring the multi-stage injection molding operations in real time to obtain production process parameters, includes: Obtain internal injection molding material and external injection molding material, and dry both internal and external injection molding materials to obtain dried internal injection molding material and dried external injection molding material; The injection molding machine has been identified. The injection molding machine includes: two barrels and a switching valve. The dried internal injection molding material and the dried external injection molding material are respectively introduced into two barrels to obtain an internal injection molding material barrel and an external injection molding material barrel. The injection molding machine is started, and the first stage injection molding is performed on the cooled molding mold using the started injection molding machine, the external injection molding material barrel and the preset first stage injection molding machine parameters to obtain the first stage molding mold and the first stage injection time. Based on the first stage injection time, the preset first stage threshold, and the injection molding machine performing the first stage injection, the first stage injection molding machine, the first stage pressure value set, and the first stage temperature value set are identified. The first-stage injection molding machine is cleaned to obtain a clean injection molding machine. The switching valve is used to switch the external injection material barrel to the internal injection material barrel to obtain a pre-injection internal barrel. The second stage injection molding process is performed on the first stage molding mold using a clean injection molding machine, a pre-injection internal barrel, and preset second stage injection parameters, and the time is recorded in real time to obtain the second stage injection time. Based on the second-stage injection time, the preset second-stage threshold, and the injection molding machine performing the second-stage injection, the second-stage pressure value set and the second-stage temperature value set are determined. The average production pressure is obtained based on the second-stage pressure value set and the first-stage pressure value set. The average production temperature is obtained based on the first-stage temperature value set and the second-stage temperature value set. The average production pressure and the average production temperature are used as production process parameters.

[0046] It needs to be explained that the internal injection material refers to the plastic material used to fill the inside of the cooling forming mold during the injection molding process. The external injection material refers to the plastic material used to cover the outside of the product during the injection molding process. The drying process of the internal injection material and the external injection material refers to the drying process of the internal injection material and the external injection material by the drying machine. The dried internal injection material refers to the internal injection material after drying treatment. The dried external injection material refers to the external injection material after drying treatment. The injection molding machine is a device used for injection molding, which injects plastic material into a cooling forming mold through heating and pressure to form a product of a predetermined shape. The switching valve is a device used to switch the injection material between two barrels. The barrel is a device used to store the injection material. The internal injection material barrel and the external injection material barrel refer to the barrel for storing the dried internal injection material and the barrel for storing the dried external injection material, respectively. The first stage injection parameter refers to the setting parameter of the injection molding machine during the first stage injection, including temperature, pressure, speed, etc. The first stage forming mold refers to the state of the plastic material in the mold after the first stage injection. The first stage injection time refers to the time obtained by starting to record in real time from the time when the injection molding machine, the external injection material barrel and the preset first stage injection machine parameters are used to perform the first stage injection on the cooling forming mold to the completion of a stage with the first stage threshold value. The first stage threshold value refers to a time threshold value preset during the first stage injection, which is used to judge whether the first stage injection is completed. The first stage injection machine refers to the injection machine after the completion of the first stage injection. The first stage pressure value set refers to a set of all pressure values recorded during the first stage injection. The first stage temperature value set refers to a set of all temperature values recorded during the first stage injection. The cleaning of the first stage injection machine refers to the cleaning and cleaning of the screw and barrel of the injection machine using cleaning agent to avoid the influence of residual high-strength plastic on the injection quality of the thermoplastic elastomer. The cleaned injection machine refers to the injection machine after cleaning. The pre-injection internal barrel refers to the barrel that has been switched to contain the dried internal injection material by the switching valve. The second stage injection parameter refers to the setting parameter of the injection molding machine during the second stage injection, including temperature, pressure, speed, etc. The second stage injection time refers to the time obtained by starting to record in real time from the time when the cleaned injection machine, the pre-injection internal barrel and the preset second stage injection parameters are used to perform the second stage injection on the first stage forming mold to the completion of a stage with the second stage threshold value. The second stage threshold value refers to a time threshold value preset during the second stage injection, which is used to judge whether the second stage injection is completed. The second stage pressure value set and the second stage temperature value set refer to a set of all pressure values recorded during the second stage injection and a set of all temperature values recorded during the second stage injection, respectively.The production pressure average refers to the average of all temperature values in the first-stage temperature value set and the second-stage temperature value set. The production temperature average refers to the average of all pressure values in the first-stage pressure value set and the second-stage pressure value set.

[0047] Importantly, the step of confirming the first-stage injection molding machine, the first-stage pressure value set and the first-stage temperature value set based on the first-stage injection molding time, the preset first-stage threshold and the injection molding machine performing the first-stage injection molding is: when the first-stage injection molding time reaches the first-stage threshold, the injection molding machine performing the first-stage injection molding is taken as the first-stage injection molding machine, and the injection molding machine monitors the pressure and temperature in real time during the injection molding process of the cooling forming mold to obtain the first-stage pressure value set and the first-stage temperature value set during the first-stage injection molding. The step of confirming the second-stage pressure value set and the second-stage temperature value set based on the second-stage injection molding time and the preset second-stage threshold is: when the second-stage injection molding time reaches the second-stage threshold, the injection molding machine monitors the pressure and temperature in real time during the injection molding process of the first-stage forming mold to obtain the second-stage pressure value set and the second-stage temperature value set during the second-stage injection molding.

[0048] S6, if the production temperature average is not located in the preset standard production temperature interval or the production pressure average is not located in the preset standard pressure interval, the optimal simulation parameter is adjusted to obtain a calibrated simulation parameter, the calibrated simulation parameter is taken as the optimal simulation parameter, and the step of performing the multi-stage injection molding operation on the cooling forming mold according to the optimal simulation parameter is returned until the production temperature average is located in the preset standard production temperature interval and the production pressure average is located in the preset standard pressure interval.

[0049] It should be explained that the standard production temperature interval refers to a production temperature range set by a person in advance, which is used to ensure that the plastic material can fully fill the mold during the injection molding process and has good mechanical properties and surface quality after cooling. The standard pressure interval refers to a production pressure range set by a person in advance, which is used to ensure that the plastic material can fully fill the mold cavity during the injection molding process and can maintain a stable shape during the pressure maintaining stage. The calibrated simulation parameter refers to a new parameter obtained by adjusting the optimal simulation parameter when it is found that the production temperature average or the production pressure average is not in the standard interval.

[0050] S7, if the production temperature average is located in the preset standard production temperature interval and the production pressure average is located in the preset standard pressure interval, the optimal simulation parameter is taken as the optimal production parameter.

[0051] It should be explained that the optimal production parameter refers to the optimal simulation parameter corresponding to the production temperature average located in the preset standard production temperature interval and the production pressure average located in the preset standard pressure interval.

[0052] S8, producing the integrated earphone shell according to the optimal production parameters, and completing the insert injection molding integration based on the earphone shell integration based on the integrated earphone shell.

[0053] Importantly, the application realizes the integrated design and manufacturing of the earphone shell, reduces the number of parts and assembly processes, improves the production efficiency and the overall performance of the product, and at the same time, through the insert injection molding integration technology, the metal insert, micro sensor and other functional components can be integrated with the earphone shell, realizing the multifunctionalization and intelligentization of the earphone, and meeting the needs of users for high-quality earphones.

[0054] The application is to solve the problems described in the background art. The application receives earphone shell integrated preparation instructions, designs an earphone shell integrated model according to the earphone shell integrated preparation instructions and preset design parameters, and prints an earphone shell integrated mold according to the earphone shell integrated model. The application designs a model according to the earphone shell integrated preparation instructions and design parameters, which can ensure that the shape, size and function of the earphone shell fully meet the design requirements, realize personalized customization, meet the needs of different users, obtain a metal insert set, perform surface etching on each metal insert in the metal insert set to obtain an engraved metal insert set, install each engraved metal insert in the engraved metal insert set using a pre-constructed micro sensor to obtain a pre-embedded metal insert set. The application can increase the surface roughness of the metal insert by etching the surface of the metal insert, improve the bonding force between the metal insert and the plastic, make the earphone shell more secure during use, and prevent the metal insert from loosening or falling off. The application obtains an initial insert mold according to the earphone shell integrated mold and the pre-embedded metal insert set, performs gradient pressure preservation on the initial insert mold to obtain a pressure-preserved insert mold. The application can make the plastic fill the mold more uniformly, avoid defects such as cavities and bubbles, and improve the forming quality and appearance quality of the earphone shell. The application cools the pressure-preserved insert mold to obtain a cooled forming mold, performs simulated injection molding on the cooled forming mold to obtain optimal simulation parameters. The cooling process can make the plastic solidify quickly, ensure the shape and size stability of the earphone shell, reduce deformation and shrinkage, and improve the precision and consistency of the product. The application performs multi-stage injection molding on the cooled forming mold according to the optimal simulation parameters and monitors the multi-stage injection molding in real time to obtain production process parameters, including production temperature mean and production pressure mean. The application can adjust the injection molding parameters according to different injection molding stages to make the plastic flow and fill the mold more uniformly, improve the quality and performance of the product, and monitor the production process parameters in real time to discover abnormal conditions in the injection molding process in time and take corresponding measures for adjustment to ensure the stability and reliability of the production process. If the production temperature mean is not within the preset standard production temperature range or the production pressure mean is not within the preset standard pressure range, the optimal simulation parameters are adjusted to obtain calibrated simulation parameters, which are used as the optimal simulation parameters, and the step of performing multi-stage injection molding on the cooled forming mold according to the optimal simulation parameters is returned until the production temperature mean is within the preset standard production temperature range and the production pressure mean is within the preset standard pressure range. The application continuously adjusts the injection molding parameters to keep the production process parameters within the standard range, which can ensure the quality stability of the earphone shell and meet the design requirements, improve the product pass rate and market competitiveness. If the production temperature mean is within the preset standard production temperature range and the production pressure mean is within the preset standard pressure range, the optimal simulation parameters are used as optimal production parameters.The integrated earphone shell is produced according to optimal production parameters, and insert injection integration based on the earphone shell integration is completed based on the integrated earphone shell, so that the integrated design and manufacture of the earphone shell are realized, the number of parts and the assembly process are reduced, the production efficiency and the overall performance of the product are improved, meanwhile, through the insert injection integration technology, the metal insert, the micro sensor and other functional components can be integrated with the earphone shell, the multifunction and intelligence of the earphone are realized, and the demand of users for high-quality earphones is met.

[0055] As Figure 2 shown is a functional module diagram of an insert injection integration system based on earphone shell integration provided by an embodiment of the application.

[0056] The insert injection integration system based on earphone shell integration 100 can be installed in an electronic device. According to the realized function, the insert injection integration system based on earphone shell integration 100 can include an earphone shell mold design module 101, a metal insert pre-embedding module 102, an injection parameter optimization module 103 and an earphone shell integration completion module 104. The modules of the application can also be called units, which refer to a series of computer program segments capable of being executed by an electronic device processor and capable of completing a fixed function, and are stored in the memory of the electronic device. The earphone shell mold design module 101 is used for receiving an earphone shell integration preparation instruction, designing an earphone shell integration model according to the earphone shell integration preparation instruction and a preset design parameter, and printing an earphone shell integration mold according to the earphone shell integration model. The metal insert pre-embedding module 102 is used for obtaining a metal insert set, performing surface etching on each metal insert in the metal insert set to obtain an engraved metal insert set, installing each engraved metal insert in the engraved metal insert set by using a pre-constructed micro sensor to obtain a pre-embedded metal insert set, and obtaining an initial insert mold according to the earphone shell integration mold and the pre-embedded metal insert set, and performing gradient pressure preservation on the initial insert mold to obtain a pressure-preserved insert mold. The injection molding parameter optimization module 103 is configured to cool the pressure-keeping insert mold to obtain a cooled forming mold, perform a simulated injection molding operation on the cooled forming mold to obtain optimal simulation parameters, perform a multi-stage injection molding operation on the cooled forming mold according to the optimal simulation parameters, and monitor the multi-stage injection molding operation in real time to obtain production process parameters, wherein the production process parameters include a production temperature mean value and a production pressure mean value; if the production temperature mean value is not within a preset standard production temperature range or the production pressure mean value is not within a preset standard pressure range, the optimal simulation parameters are adjusted to obtain calibrated simulation parameters, the calibrated simulation parameters are taken as the optimal simulation parameters, and the step of performing the multi-stage injection molding operation on the cooled forming mold according to the optimal simulation parameters is returned to until the production temperature mean value is within the preset standard production temperature range and the production pressure mean value is within the preset standard pressure range; if the production temperature mean value is within the preset standard production temperature range and the production pressure mean value is within the preset standard pressure range, the optimal simulation parameters are taken as optimal production parameters. The earphone shell integration completion module 104 is configured to produce an integrated earphone shell according to the optimal production parameters, and complete the insert injection molding integration based on the earphone shell integration based on the integrated earphone shell.

[0057] In detail, the modules in the insert injection molding integration system 100 based on the earphone shell integration in the embodiment of the present application use the same technical means as the insert injection molding integration method based on the earphone shell integration in the embodiment of the present application described above, and can produce the same technical effects, which will not be described here. Figure 1 In detail, the modules in the insert injection molding integration system 100 based on the earphone shell integration in the embodiment of the present application use the same technical means as the insert injection molding integration method based on the earphone shell integration in the embodiment of the present application described above, and can produce the same technical effects, which will not be described here.

[0058] As shown in Figure 3 FIG. 1 is a structural schematic diagram of an electronic device for implementing the insert injection molding integration method based on the earphone shell integration according to an embodiment of the present application.

[0059] The electronic device 1 can include a processor 10, a memory 11, and a bus 12, and can further include a computer program stored in the memory 11 and executable on the processor 10, such as an insert injection molding integration method based on the earphone shell integration program.

[0060] The memory 11 includes at least one type of readable storage medium, such as a flash memory, a mobile hard disk, a multimedia card, a card-type memory (e.g., an SD or DX memory, etc.), a magnetic memory, a disk, an optical disk, etc. In some embodiments, the memory 11 can be an internal storage unit of the electronic device 1, such as a mobile hard disk of the electronic device 1. In other embodiments, the memory 11 can also be an external storage device of the electronic device 1, such as a plug-in mobile hard disk, a smart media card (SMC), a secure digital (SD) card, a flash card, etc. equipped on the electronic device 1. Further, the memory 11 includes both an internal storage unit and an external storage device of the electronic device 1. The memory 11 can be used to store application software and various data installed on the electronic device 1, such as the code of the insert injection integration method program based on the integration of the earphone shell, and can also be used to temporarily store data that has been output or will be output.

[0061] The processor 10 can be composed of an integrated circuit in some embodiments, such as a single packaged integrated circuit, or a plurality of packaged integrated circuits with the same or different functions, including one or more combinations of a central processing unit (CPU), a microprocessor, a digital processing chip, a graphics processor, and various control chips, etc. The processor 10 is the control core of the electronic device, which connects various components of the entire electronic device through various interfaces and lines, executes programs or modules stored in the memory 11 (such as the insert injection integration method program based on the integration of the earphone shell, etc.), and calls data stored in the memory 11, to perform various functions and process data of the electronic device 1.

[0062] The bus 12 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus 12 can be divided into an address bus, a data bus, a control bus, etc. The bus 12 is configured to realize the connection and communication between the memory 11 and at least one processor 10, etc.

[0063] Figure 3 Only the electronic device with components is shown, and those skilled in the art can understand that, Figure 3The structure shown does not constitute a limitation on the electronic device 1, and can include fewer or more components than shown, or combine certain components, or different component arrangements.

[0064] For example, although not shown, the electronic device 1 can also include a power supply (such as a battery) to power the various components. Preferably, the power supply can be logically connected to the at least one processor 10 through a power management device, so that functions such as charge management, discharge management, and power consumption management can be achieved through the power management device. The power supply can also include one or more DC or AC power sources, recharging devices, power failure detection circuits, power converters or inverters, power status indicators, and any other components. The electronic device 1 can also include various sensors, Bluetooth modules, Wi-Fi modules, etc., which are not described here.

[0065] Further, the electronic device 1 can also include a network interface, which can optionally include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), and is typically used to establish a communication connection between the electronic device 1 and other electronic devices.

[0066] Optionally, the electronic device 1 can also include a user interface, which can be a display (Display), an input unit (such as a keyboard (Keyboard)), and optionally a standard wired interface, a wireless interface. Optionally, in some embodiments, the display can be an LED display, a liquid crystal display, a touch liquid crystal display, an OLED (Organic Light-Emitting Diode) touch, etc. The display can also be appropriately referred to as a display screen or a display unit, and is used to display information processed in the electronic device 1 and to display a visualized user interface.

[0067] The earphone shell integration insert molding integrated method program stored in the memory 11 in the electronic device 1 is a combination of multiple instructions, which, when run in the processor 10, can achieve: Receiving earphone shell integration preparation instructions, designing an earphone shell integration model according to the earphone shell integration preparation instructions and the preset design parameters, and printing an earphone shell integration mold according to the earphone shell integration model; Obtaining a set of metal inserts, etching the surface of each metal insert in the set of metal inserts to obtain a set of engraved metal inserts, and installing each engraved metal insert in the set of engraved metal inserts using a pre-constructed micro sensor to obtain a set of embedded metal inserts; Obtaining an initial insert mold according to the earphone shell integration mold and the set of embedded metal inserts, and performing gradient pressure preservation on the initial insert mold to obtain a pressure-preserved insert mold; cooling the pressure retaining insert mold to obtain a cooled molding mold, performing a simulation injection operation on the cooled molding mold to obtain optimal simulation parameters; performing a multi-stage injection operation on the cooled molding mold according to the optimal simulation parameters, and monitoring the multi-stage injection operation in real time to obtain production process parameters, wherein the production process parameters include: a production temperature mean value and a production pressure mean value; if the production temperature mean value is not located in a preset standard production temperature range or the production pressure mean value is not located in a preset standard pressure range, adjusting the optimal simulation parameters to obtain calibrated simulation parameters, taking the calibrated simulation parameters as the optimal simulation parameters, returning to the step of performing the multi-stage injection operation on the cooled molding mold according to the optimal simulation parameters until the production temperature mean value is located in the preset standard production temperature range and the production pressure mean value is located in the preset standard pressure range; if the production temperature mean value is located in the preset standard production temperature range and the production pressure mean value is located in the preset standard pressure range, taking the optimal simulation parameters as optimal production parameters; producing an integrated earphone shell according to the optimal production parameters, and completing insert injection integration based on earphone shell integration based on the integrated earphone shell.

[0068] Specifically, the specific implementation method of the processor 10 to the above instructions can refer to Figures 1 to 3 The description of related steps in the corresponding embodiments will not be repeated here.

[0069] Further, the modules / units integrated by the electronic device 1 can be stored in a computer readable storage medium if they are realized in the form of software function units and sold or used as independent products. The computer readable storage medium can be volatile or non-volatile. For example, the computer readable medium can include any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, magnetic disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory).

[0070] The application also provides a computer readable storage medium, which stores a computer program, and the computer program can realize the following when executed by a processor of an electronic device: receiving earphone shell integration preparation instructions, designing an earphone shell integration model according to the earphone shell integration preparation instructions and preset design parameters, and printing an earphone shell integration mold according to the earphone shell integration model; Acquire a metal insert set, perform surface etching on each metal insert in the metal insert set to obtain a carved metal insert set, and install each carved metal insert in the carved metal insert set by using a pre-constructed micro sensor to obtain a pre-embedded metal insert set; Obtain an initial insert mold according to the earphone shell integrated mold and the pre-embedded metal insert set, perform gradient pressure preservation on the initial insert mold to obtain a pressure-preserved insert mold; Cool the pressure-preserved insert mold to obtain a cooled forming mold, and perform a simulated injection molding operation on the cooled forming mold to obtain optimal simulation parameters; Perform a multi-stage injection molding operation on the cooled forming mold according to the optimal simulation parameters, and monitor the multi-stage injection molding operation in real time to obtain production process parameters, wherein the production process parameters include a production temperature mean value and a production pressure mean value; If the production temperature mean value is not within a preset standard production temperature range or the production pressure mean value is not within a preset standard pressure range, adjust the optimal simulation parameters to obtain calibrated simulation parameters, use the calibrated simulation parameters as the optimal simulation parameters, return to the step of performing a multi-stage injection molding operation on the cooled forming mold according to the optimal simulation parameters, and continue until the production temperature mean value is within the preset standard production temperature range and the production pressure mean value is within the preset standard pressure range; If the production temperature mean value is within the preset standard production temperature range and the production pressure mean value is within the preset standard pressure range, use the optimal simulation parameters as optimal production parameters; Produce an integrated earphone shell according to the optimal production parameters, and complete the insert injection molding integration based on the earphone shell integration based on the earphone shell integration.

[0071] In several embodiments provided in the present application, it should be understood that the disclosed devices, systems and methods can be implemented in other ways. For example, the above-described system embodiments are only illustrative, and actual implementations can have other division ways.

[0072] The modules described as separate components can or can not be physically separated, and the components shown as modules can or can not be physical units, i.e., they can be located in one place or distributed on multiple network units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs.

[0073] In addition, each functional module in each embodiment of the present application can be integrated in one processing unit, or each unit can exist physically separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of hardware plus software functional modules.

[0074] It will be obvious to a person skilled in the art that the application is not limited to the details of the above-described exemplary embodiments but can be implemented in other embodiments without departing from the scope of the application.

Claims

1. An insert injection integrated method based on earphone shell integration, characterized in that, The method comprises: Receiving earphone shell integrated preparation instructions, designing an earphone shell integrated model according to the earphone shell integrated preparation instructions and preset design parameters, and printing an earphone shell integrated mold according to the earphone shell integrated model; Obtaining a metal insert set, performing surface etching on each metal insert in the metal insert set to obtain an engraved metal insert set, and installing each engraved metal insert in the engraved metal insert set using a pre-constructed micro sensor to obtain a pre-embedded metal insert set; Obtaining an initial insert mold according to the earphone shell integrated mold and the pre-embedded metal insert set, and performing gradient pressure preservation on the initial insert mold to obtain a pressure-preserved insert mold; Cooling the pressure-preserved insert mold to obtain a cooled forming mold, and performing simulated injection molding on the cooled forming mold to obtain optimal simulation parameters; Performing multi-stage injection molding on the cooled forming mold according to the optimal simulation parameters, and monitoring the multi-stage injection molding in real time to obtain production process parameters, wherein the production process parameters include a production temperature mean value and a production pressure mean value; If the production temperature mean value is not within a preset standard production temperature range or the production pressure mean value is not within a preset standard pressure range, adjusting the optimal simulation parameters to obtain calibrated simulation parameters, using the calibrated simulation parameters as the optimal simulation parameters, and returning to the step of performing multi-stage injection molding on the cooled forming mold according to the optimal simulation parameters until the production temperature mean value is within the preset standard production temperature range and the production pressure mean value is within the preset standard pressure range; If the production temperature mean value is within the preset standard production temperature range and the production pressure mean value is within the preset standard pressure range, using the optimal simulation parameters as optimal production parameters; Producing an integrated earphone shell according to the optimal production parameters, and completing insert injection molding integration based on the earphone shell integration based on the integrated earphone shell.

2. The insert injection integrated method based on earphone shell integration of claim 1, wherein, The method comprises: Obtaining a honeycomb pattern, importing the honeycomb pattern into a pre-constructed ultraviolet laser marking machine to obtain an initial marking machine, grouping the metal insert set to obtain a metal insert group set, wherein the metal insert group set comprises a plurality of metal insert groups; Sequentially extracting metal insert groups from the metal insert group set, and performing the following operations on each extracted metal insert group: Sequentially extracting metal inserts from the metal insert group, and performing the following operations on each extracted metal insert: Fixing the metal insert to obtain a fixed metal insert, focusing the fixed metal insert using the initial marking machine to obtain a focused marking machine, and performing rough engraving on the metal insert using the focused marking machine and preset laser parameters to obtain a rough-engraved metal insert; Refining the rough-engraved metal insert to obtain a refined metal insert, and collecting the refined metal inserts to obtain a refined metal insert set; Obtaining the insert aperture of each refined metal insert in the refined metal insert set to obtain an insert aperture set; If the insert hole diameter set contains insert hole diameters less than the preset lower limit of the insert hole diameter or contains insert hole diameters greater than the preset upper limit of the insert hole diameter, a pre-constructed alarm device is started, the laser parameters are adjusted in power according to the started alarm device, calibrated laser parameters are obtained, the calibrated laser parameters are taken as the laser parameters, and the step of sequentially extracting the metal insert group from the metal insert group set is returned until the metal insert group set is empty; If the insert hole diameter set does not contain insert hole diameters less than the preset lower limit of the insert hole diameter and does not contain insert hole diameters greater than the preset upper limit of the insert hole diameter, the refined metal insert set is taken as the carved metal insert sample set; The carved metal insert sample set is summarized to obtain a carved metal insert set.

3. The insert injection integrated method based on earphone shell integration of claim 2, wherein, The initial insert mold is obtained according to the earphone shell integrated mold and the pre-embedded metal insert set, and the initial insert mold comprises: Each pre-embedded metal insert in the pre-embedded metal insert set is subjected to the following operations: An image of the metal insert is obtained according to the pre-embedded metal insert, the image of the metal insert is subjected to grayscale processing to obtain a grayscale insert image, and the grayscale insert image is subjected to filtering to obtain a filtered insert image; Feature extraction is performed on the filtered insert image to obtain an insert feature point set, wherein the insert feature point set comprises a plurality of insert feature points, and each insert feature point comprises an insert position and an insert descriptor; An insert template feature point set is obtained based on a preset insert feature template, wherein the insert template feature point set comprises a plurality of insert template feature points, and each insert template feature point comprises an insert template position and an insert template descriptor; A conversion matrix is constructed based on the insert feature point set and the insert template feature point set; The conversion matrix set is obtained by summarizing the conversion matrices, and the initial insert mold is obtained according to the conversion matrix set, the earphone shell integrated mold, the pre-constructed robot, and the pre-embedded metal insert set.

4. The insert injection integrated method based on earphone shell integration of claim 3, wherein, The conversion matrix is constructed based on the insert feature point set and the insert template feature point set, and the conversion matrix comprises: Insert feature points are sequentially extracted from the insert feature point set, a target insert template feature point is determined from the insert template feature point set according to the insert feature point, and the Euclidean distance between the insert descriptor and the insert template descriptor is calculated according to the insert feature point and the target insert template feature point; The Euclidean distance is compared with a preset standard Euclidean distance; If the Euclidean distance is less than the preset standard Euclidean distance, the insert feature point and the target insert template feature point are combined into a matching feature point pair, the insert feature point is taken as a first insert feature point, and the target insert template feature point is taken as a first insert template feature point; The matching feature point pair set, the first insert feature point set, and the first insert template feature point set are obtained by respectively summarizing the matching feature point pair, the first insert feature point, and the first insert template feature point; The conversion matrix is constructed according to the matching feature point pair set, the first insert feature point set, and the first insert template feature point set.

5. The insert injection integrated method based on earphone shell integration of claim 4, wherein, The conversion matrix is constructed according to the matching feature point pair set, the first insert feature point set, and the first insert template feature point set, and the conversion matrix comprises: The horizontal coordinate insert centroid and the vertical coordinate insert centroid are calculated according to the first insert feature point set, and the horizontal coordinate template centroid and the vertical coordinate template centroid are calculated according to the first insert template feature point set; According to the horizontal coordinate insert centroid and the horizontal coordinate template centroid, the horizontal coordinate offset is calculated, and according to the vertical coordinate insert centroid and the vertical coordinate template centroid, the vertical coordinate offset is calculated; Based on the matched feature point pair set, a relative rotation angle set is obtained, an average rotation angle is calculated according to the relative rotation angle set, and a rotation matrix is constructed according to the average rotation angle; According to the horizontal coordinate offset and the vertical coordinate offset, a translation vector is constructed, and according to the rotation matrix and the translation vector, a conversion matrix is constructed, wherein the conversion matrix is represented as: wherein denotes a conversion matrix, denotes an average rotation angle, denotes a cosine function, denotes a sine function, denotes a horizontal coordinate offset, denotes a vertical coordinate offset.

6. The insert injection integrated method based on earphone shell integration of claim 5, wherein, The relative rotation angle set is obtained based on the matched feature point pair set, comprising: The matched feature point pairs are extracted from the matched feature point pair set in turn, and the following operations are performed on the extracted matched feature point pairs: According to the matched feature point pair, adjacent matched feature point pairs are extracted from the matched feature point pair set, wherein the adjacent matched feature point pairs are adjacent to and lag behind the matched feature point pair; According to the matched feature point pair and the adjacent matched feature point pair, an image feature point vector and a template feature point vector are obtained, and a vector dot product and a vector cross product are calculated according to the image feature point vector and the template feature point vector; According to the image feature point vector, an image vector module is calculated, according to the template feature point vector, a template vector module is calculated, according to the vector dot product, the image vector module and the template vector module, a cosine of the included angle is calculated, and according to the vector cross product, the image vector module and the template vector module, a sine of the included angle is calculated; According to the cosine of the included angle and the sine of the included angle, a relative rotation angle is calculated, wherein the calculation formula of the relative rotation angle is as follows: wherein denotes the relative rotation angle, denotes the sine of the included angle, denotes the cosine of the included angle, denotes the inverse tangent function; The adjacent matched feature point pair is taken as the matched feature point pair, and the step of extracting the adjacent matched feature point pair from the matched feature point pair set according to the matched feature point pair is returned until the matched feature point pair set is empty; The relative rotation angles are summarized to obtain a relative rotation angle set.

7. The insert injection integrated method based on earphone shell integration of claim 6, wherein, The initial insert mold is obtained according to the conversion matrix set, the earphone shell integrated mold, the pre-constructed robot and the pre-embedded metal insert set, comprising: The metal insert position set is determined according to the earphone shell integrated mold, wherein the metal insert positions in the metal insert position set correspond one-to-one to the pre-embedded metal inserts in the pre-embedded metal insert set; The following operations are performed on each pre-embedded metal insert in the pre-embedded metal insert set: According to the pre-embedded metal insert, a target metal insert position and a target conversion matrix are determined from the metal insert position set and the conversion matrix set, respectively, a current insert coordinate is obtained according to the pre-embedded metal insert, and an insert position coordinate is determined according to the target metal insert position; According to the current insert coordinate and the insert position coordinate, a moving route is planned, and according to the moving route, the pre-constructed vacuum chuck, the robot and the target conversion matrix, the pre-embedded metal insert is installed at the target metal insert position to obtain a positioned metal insert; The positioned metal inserts are summarized to obtain an initial insert mold.

8. The insert injection integrated method based on earphone shell integration of claim 7, wherein, The simulation injection operation is performed on the cooling forming mold to obtain optimal simulation parameters, comprising: Obtaining a historical cooling rate interval, a historical holding pressure interval and a historical melt temperature interval, and preliminarily evaluating the historical cooling rate interval, the historical holding pressure interval and the historical melt temperature interval according to a pre-constructed surrogate model to obtain a cooling rate sensitive interval, a holding pressure sensitive interval and a melt temperature sensitive interval; According to the cooling rate sensitive interval, the holding pressure sensitive interval and the melt temperature sensitive interval, a cooling rate sensitive mean value, a holding pressure sensitive mean value and a melt temperature sensitive mean value are calculated, and a simulation parameter is generated according to the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value; Obtaining a mold size of a cooling forming mold and a polymer material, inputting the mold size into a pre-constructed mold flow analysis software for mold flow analysis to obtain cooling efficiency distribution data; Using a pre-constructed molecular dynamics simulation software and the simulation parameter to simulate the polymer material to obtain micro-molecular crystallization data; According to the cooling efficiency distribution data and the micro-molecular crystallization data, a cooling efficiency thermodynamic diagram is generated, and a maximum temperature and a minimum temperature are obtained according to the cooling efficiency thermodynamic diagram; According to the maximum temperature and the minimum temperature, a temperature difference is calculated, and the temperature difference is compared with a pre-set temperature difference threshold value; If the temperature difference is greater than the pre-set temperature difference threshold value, the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value are optimized to obtain a sub-optimal cooling rate sensitive mean value, a sub-optimal holding pressure sensitive mean value and a sub-optimal melt temperature sensitive mean value, and the sub-optimal cooling rate sensitive mean value, the sub-optimal holding pressure sensitive mean value and the sub-optimal melt temperature sensitive mean value are taken as the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value respectively, and the step of generating the simulation parameter according to the cooling rate sensitive mean value, the holding pressure sensitive mean value and the melt temperature sensitive mean value is returned until the temperature difference is less than or equal to the pre-set temperature difference threshold value; if the temperature difference is less than or equal to the pre-set temperature difference threshold value, the simulation parameter is taken as an optimal simulation parameter.

9. The insert injection integrated method based on earphone shell integration of claim 8, wherein, According to the optimal simulation parameter, a multi-stage injection molding operation is performed on the cooling forming mold, and the multi-stage injection molding operation is monitored in real time to obtain production process parameters, including: Obtaining an internal injection material and an external injection material, and drying the internal injection material and the external injection material to obtain dried internal injection material and dried external injection material; Confirming an injection molding machine, wherein the injection molding machine comprises two barrels and a switching valve; The dried internal injection material and the dried external injection material are introduced into the two barrels respectively to obtain an internal injection material barrel and an external injection material barrel, the injection molding machine is started, and the first stage injection is performed on the cooling forming mold by using the started injection molding machine, the external injection material barrel and a pre-set first stage injection machine parameter to obtain a first stage forming mold and a first stage injection time; Based on the first stage injection time, a pre-set first stage threshold value and the injection molding machine performing the first stage injection, a first stage injection machine, a first stage pressure value set and a first stage temperature value set are confirmed; The first stage injection machine is cleaned to obtain a clean injection machine, and the external injection material barrel is switched to the internal injection material barrel by using the switching valve to obtain a pre-injection internal barrel; A second stage injection is performed on the first stage molding die using a clean injection molding machine, a pre-injection internal cylinder and pre-set second stage injection parameters, and a second stage injection time is recorded in real time to obtain the second stage injection time; Second stage pressure value sets and second stage temperature value sets are confirmed based on the second stage injection time and pre-set second stage threshold values; Production pressure average values are obtained according to the second stage pressure value sets and the first stage pressure value sets, and production temperature average values are obtained according to the first stage temperature value sets and the second stage temperature value sets, and the production pressure average values and the production temperature average values are taken as production process parameters.

10. An insert injection integrated system based on earphone shell integration, characterized in that, The system comprises: An earphone shell mold design module is configured to receive earphone shell integrated preparation instructions, design an earphone shell integrated model according to the earphone shell integrated preparation instructions and pre-set design parameters, and print an earphone shell integrated mold according to the earphone shell integrated model; A metal insert pre-embedding module is configured to obtain a set of metal inserts, perform surface etching on each metal insert in the set of metal inserts to obtain a set of engraved metal inserts, install each engraved metal insert in the set of engraved metal inserts using a pre-constructed micro sensor to obtain a set of pre-embedded metal inserts, and obtain an initial insert mold according to the earphone shell integrated mold and the set of pre-embedded metal inserts, and perform gradient pressure holding on the initial insert mold to obtain a pressure-holding insert mold; An injection parameter optimization module is configured to cool the pressure-holding insert mold to obtain a cooled molding die, perform simulated injection on the cooled molding die to obtain optimal simulation parameters, perform multi-stage injection on the cooled molding die according to the optimal simulation parameters, and monitor the multi-stage injection in real time to obtain production process parameters, wherein the production process parameters include production temperature average values and production pressure average values, if the production temperature average values are not within a pre-set standard production temperature range or the production pressure average values are not within a pre-set standard pressure range, the optimal simulation parameters are adjusted to obtain calibrated simulation parameters, the calibrated simulation parameters are taken as the optimal simulation parameters, and the step of performing multi-stage injection on the cooled molding die according to the optimal simulation parameters is returned until the production temperature average values are within the pre-set standard production temperature range and the production pressure average values are within the pre-set standard pressure range, and if the production temperature average values are within the pre-set standard production temperature range and the production pressure average values are within the pre-set standard pressure range, the optimal simulation parameters are taken as optimal production parameters; An earphone shell integrated completion module is configured to produce an integrated earphone shell according to the optimal production parameters, and complete insert injection integration based on the earphone shell integration.

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