CN112776293A - Method and system for improving consistency of molding quality of injection molding process product - Google Patents

Method and system for improving consistency of molding quality of injection molding process product Download PDF

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Publication number
CN112776293A
CN112776293A CN202011550566.3A CN202011550566A CN112776293A CN 112776293 A CN112776293 A CN 112776293A CN 202011550566 A CN202011550566 A CN 202011550566A CN 112776293 A CN112776293 A CN 112776293A
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equipment
target
molding process
initial
product
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戴科
申冲
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Yanfeng Automotive Trim Systems Chongqing Co Ltd
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Yanfeng Automotive Trim Systems Chongqing Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17Component parts, details or accessories; Auxiliary operations
    • B29C45/76Measuring, controlling or regulating

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  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

The invention discloses a method and a system for improving the molding quality consistency of injection molding process products, wherein the method comprises the steps of obtaining initial equipment information of initial equipment, target equipment information of target equipment and initial equipment molding process parameter information corresponding to a target product; acquiring a pre-constructed data conversion model; inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into a data conversion model for data conversion to obtain target equipment molding process parameter information corresponding to a target product, wherein the target equipment molding process parameter information is a molding process parameter combination which needs to be input into target equipment when the target product is produced by utilizing the target equipment. The invention can quickly obtain the molding process parameter combination required by target production equipment when producing a target product, has high efficiency and low cost, and can effectively improve the consistency of the product molding quality when the molds of the same product are used for producing products on different injection molding machine equipment.

Description

Method and system for improving consistency of molding quality of injection molding process product
Technical Field
The invention relates to the technical field of injection molding, in particular to a method and a system for improving the consistency of the molding quality of an injection molding process product.
Background
In the field of injection molding, one pair of molds corresponds to one product, and when the same mold is needed to produce products on different injection molding machine equipment, the quality states of the products produced by the two injection molding machine equipment need to be kept consistent. However, different injection molding machines and equipment cause different combinations of corresponding molding process parameters, which may lead to inconsistent quality and state of the produced products. The conventional solution is to use the target injection molding machine equipment to continuously perform on-site debugging and verification until the quality state of the product is detected to be consistent, so as to lock the corresponding molding process parameter combination. The method is time-consuming and labor-consuming, has low efficiency, and can not meet the production and manufacturing requirements of increasing proficiency due to the fact that a large amount of resources are wasted due to scrapped test products generated by multiple times of die testing and debugging, the production cost is increased.
In the prior art, molding process parameters of corresponding equipment are obtained through mold flow analysis or a mold cavity pressure monitoring system. In the first method, the flow behavior of the simulated plastic is analyzed by 3D modeling, usually using Mold flow simulation analysis software, to obtain the molding process settings of the corresponding devices. However, the method is limited by the inaccuracy of 3D model meshing, material characteristic data, simulation software algorithm, flow channel and water channel modeling, the distortion of the simulation result is high, the method is mainly used for early-stage molding planning reference, the guidance effect on later-stage field production process setting is low, the analysis time is long, the efficiency and the effect are limited, and the requirement of field production quick response cannot be met. In the second method, a pressure sensor, a stroke sensor and a temperature sensor are arranged in a mold, read sensor monitoring data are processed through a computer, a continuous mold cavity pressure curve, a screw stroke curve and a mold cavity surface temperature curve are generated on a display screen, and the purpose of observing the flowing behavior of the plastic in the mold is realized by analyzing the change of the curves. However, the mold cavity pressure monitoring system is expensive in cost, 1 set of monitoring system needs to be equipped for each device, and the installation position of a pressure sensor needs to be designed for each set of corresponding mold, wherein the pressure sensors are mostly ejector pin pressure sensors, so that data inaccuracy and frequent maintenance are caused by clamping stagnation; the function of the injection molding machine is mainly to passively monitor the pressure in the mold, and the injection molding machine does not have the function of self-adaptive adjustment in the molding process, and if products are transferred to other injection molding machine equipment, the on-site debugging setting is still required to be carried out according to a conventional method.
Therefore, how to efficiently improve the consistency of product molding quality when the molds of the same product are used for producing products on different injection molding machine devices is a problem to be solved urgently at present.
Disclosure of Invention
In view of the above, the present invention provides a method and a system for improving consistency of molding quality of injection molding process products, so that when a mold of a same product is used for producing products on different injection molding machine devices, a molding process parameter combination required by a target production device for producing a target product can be quickly obtained, and consistency of molding quality of the product is effectively improved.
In order to achieve the above object, according to one aspect of the present invention, there is provided a method for improving consistency of molding quality of an injection molding process product, the method including:
acquiring initial equipment information of initial equipment, target equipment information of target equipment and initial equipment molding process parameter information corresponding to a target product;
acquiring a pre-constructed data conversion model;
inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into the data conversion model for data conversion to obtain target equipment molding process parameter information corresponding to the target product, wherein,
the target equipment forming process parameter information is a forming process parameter combination which needs to be input into the target equipment when the target equipment is used for producing the target product.
Preferably, the method further comprises:
and carrying out mathematical model correction and conversion on the injection molding units of the initial equipment and the target equipment to obtain the data conversion model, wherein the data conversion model comprises an initial equipment parameter conversion model and a target equipment parameter conversion model.
Preferably, the inputting the initial device information, the target device information and the initial device molding process parameter information into the data conversion model for data conversion to obtain the target device molding process parameter information corresponding to the target product includes:
inputting the initial equipment information and the initial equipment molding process parameter information into the initial equipment parameter conversion model for data conversion to obtain core plastic flow characteristic process parameters corresponding to the target product;
and inputting the core plastic flow characteristic process parameters and the target equipment information into the target equipment parameter conversion model for data conversion to obtain target equipment molding process parameters corresponding to the target product.
Preferably, the core plastic flow characteristic process parameters corresponding to the target product comprise plastic temperature, plastic flow rate, plastic cooling efficiency and in-mold cavity pressure.
Preferably, the method further comprises:
recording the process parameters of the initial equipment locked when the target product is produced by the initial equipment;
and storing the initial equipment process parameters serving as initial equipment molding process parameter information corresponding to the target product into a process parameter database.
According to an aspect of the present invention, the present invention further provides a system for improving consistency of molding quality of injection molding process products, the system comprising:
the data acquisition module is used for acquiring initial equipment information of initial equipment, target equipment information of target equipment and initial equipment molding process parameter information corresponding to a target product;
the model acquisition module is used for acquiring a pre-constructed data conversion model;
a data conversion module for inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into the data conversion model for data conversion to obtain the target equipment molding process parameter information corresponding to the target product,
the target equipment forming process parameter information is a forming process parameter combination which needs to be input into the target equipment when the target equipment is used for producing the target product.
Preferably, the system further comprises:
and the model building module is used for carrying out mathematical model correction and conversion on the injection molding units of the initial equipment and the target equipment to obtain the data conversion model, wherein the data conversion model comprises an initial equipment parameter conversion model and a target equipment parameter conversion model.
Preferably, the data conversion module includes:
the first data conversion unit is used for inputting the initial equipment information and the initial equipment molding process parameter information into the initial equipment parameter conversion model for data conversion to obtain core plastic flow characteristic process parameters corresponding to the target product;
and the second data conversion unit is used for inputting the core plastic flow characteristic process parameters and the target equipment information into the target equipment parameter conversion model for data conversion to obtain target equipment molding process parameters corresponding to the target product.
Preferably, the core plastic flow characteristic process parameters corresponding to the target product comprise plastic temperature, plastic flow rate, plastic cooling efficiency and in-mold cavity pressure.
Preferably, the system further comprises:
the data recording module is used for recording the process parameters of the initial equipment locked when the target product is produced by adopting the initial equipment;
and the data storage module is used for storing the initial equipment process parameters as initial equipment molding process parameter information corresponding to the target product to a process parameter database.
According to the scheme, the invention provides a method and a system for improving the molding quality consistency of injection molding process products, and the method comprises the steps of obtaining initial equipment information of initial equipment, target equipment information of target equipment and initial equipment molding process parameter information corresponding to a target product; acquiring a pre-constructed data conversion model; and inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into the data conversion model for data conversion to obtain target equipment molding process parameter information corresponding to the target product, wherein the target equipment molding process parameter information is a molding process parameter combination which needs to be input into the target equipment when the target product is produced by utilizing the target equipment. The invention can quickly obtain the molding process parameter combination required by the target production equipment when the target product is produced according to the molding process parameter information of the target product produced by the initial production equipment, has high efficiency and low cost, can effectively improve the consistency of the molding quality of the product when the mold of the same product produces the product on different injection molding machine equipment, and effectively meets the increasingly lean production and manufacturing requirements.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a flowchart of an embodiment 1 of a method for improving consistency of molding quality of an injection molding process product disclosed by the invention;
FIG. 2 is a schematic structural diagram of an embodiment 1 of a system for improving consistency of molding quality of an injection molding process product disclosed by the invention;
FIG. 3 is a diagram of a relationship between process parameters of an initial device and a target device in an embodiment of the disclosure;
FIG. 4 is a diagram of a main operating interface of the data conversion system in an embodiment of the present disclosure;
FIGS. 5 and 6 are system interface diagrams of a data conversion system recording and storing initial equipment process parameters according to an embodiment of the disclosure;
FIG. 7 is a diagram of a data transformation operating interface of the data transformation system in an embodiment of the present disclosure;
fig. 8 and 9 are system interface diagrams of target device molding process parameter information displayed after confirmation conversion of the data conversion system in an embodiment of the disclosure.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1, which is a flowchart of embodiment 1 of a method for improving consistency of molding quality of an injection molding process product, the method may include the following steps:
s101, acquiring initial equipment information of initial equipment, target equipment information of target equipment and initial equipment molding process parameter information corresponding to a target product;
when a mold of the same product needs to be used for producing products on different injection molding machine devices, initial device information of initial devices, target device information of target devices and initial device molding process parameter information corresponding to the target product need to be obtained. For example, in the current injection molding field, a mold supplier usually produces an injection mold, and after the mold supplier produces the injection mold, the mold supplier usually needs to use its own injection molding machine to debug and verify the injection mold, so as to check whether the produced injection mold can produce a qualified product, and after verification, the produced injection mold is provided to a product manufacturer for producing a target product. At this time, the product corresponding to the injection mold is the target product, the injection molding machine for producing the target product by the mold supplier is the initial equipment, the injection molding machine for producing the target product by the product manufacturer is the target equipment, and the process parameters for producing the qualified target product by the mold manufacturer are the molding process parameter information of the initial equipment. Because the injection molding machine models, the service life, the screw backflow degree of the injection molding units and other equipment information of the mold manufacturer and the product manufacturer are different, the corresponding molding process parameter combinations are also different, and if the process parameters (namely the initial equipment molding process parameter information) of the injection molding machine of the mold manufacturer are used as the molding process parameters of the product manufacturer, the molding quality states of the products are inconsistent, so that the product manufacturer needs to reset the molding process parameter combinations matched with the injection molding machine.
In the prior art, target injection molding machine equipment is usually used for continuously performing on-site debugging and verification until the quality state of a product is detected to be consistent, so that a corresponding molding process parameter combination is locked. The method is time-consuming and labor-consuming, has low efficiency, and can cause a large amount of resource waste and increase the production cost due to scrapped test products generated by multiple die testing and debugging.
Specifically, the initial device information includes an initial device name, and the target device information includes a target device name.
S102, acquiring a pre-constructed data conversion model;
when a mold of the same product needs to be used for producing products on different injection molding machine devices, a pre-constructed data conversion model also needs to be obtained.
And S103, inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into a data conversion model for data conversion to obtain target equipment molding process parameter information corresponding to the target product, wherein the target equipment molding process parameter information is a molding process parameter combination which needs to be input into the target equipment when the target product is produced by utilizing the target equipment.
Then, inputting the acquired various pieces of information into the acquired data conversion model to perform data conversion of the process parameters between the initial equipment and the target equipment, so as to obtain the molding process parameter information of the target equipment corresponding to the target product, namely the molding process parameter combination which needs to be input into the target equipment when the target equipment is used for producing the target product. After the molding process parameter information of the target equipment is obtained, when the target equipment is used for producing the target product, the obtained molding process parameter information of the target equipment is only needed to be used as the molding process parameter combination of the target equipment for producing the target product and input into the target equipment, and then the target product is produced, so that the product which is consistent with the molding quality state of the target product produced by the initial equipment can be obtained.
It should be noted that, in the actual application process, step S101 and step S102 are not in sequence, and step S101 may be executed first, step S102 may be executed first, step S101 may be executed, or step S101 and step S102 may be executed in parallel.
Because the core plastic flow characteristic process parameters for product molding are consistent under the molding quality state of the same product, the same pair of molds and the same product, based on the theoretical basis, a data conversion model can be constructed in advance, the association between the initial equipment and the target equipment for producing the same target product is established, a corresponding data conversion model is formed, and then certain known equipment information and process parameters are input into the data conversion model, so that the molding process parameter combination of the target equipment capable of ensuring the molding quality state consistency of the product is obtained, and the process parameters for producing the target product by the target equipment are not required to be obtained through on-site multiple debugging and verification.
In summary, in this embodiment, a method for improving consistency of molding quality of an injection molding process product is provided, where when a mold of a same product needs to be used for product production on different injection molding machine devices, initial device information of an initial device, target device information of a target device, and initial device molding process parameter information corresponding to a target product are obtained first; acquiring a pre-constructed data conversion model; and then inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into a data conversion model for data conversion to obtain target equipment molding process parameter information corresponding to the target product, wherein the target equipment molding process parameter information is a molding process parameter combination which needs to be input into the target equipment when the target product is produced by utilizing the target equipment. The invention can quickly obtain the molding process parameter combination required by the target production equipment when the target product is produced according to the molding process parameter information of the target product produced by the initial production equipment, has high efficiency and low cost, can effectively improve the consistency of the molding quality of the product when the mold of the same product produces the product on different injection molding machine equipment, and effectively meets the increasingly lean production and manufacturing requirements.
In one embodiment, the method may further comprise:
and carrying out mathematical model correction and conversion on injection molding units of the initial equipment and the target equipment to obtain a data conversion model, wherein the data conversion model comprises an initial equipment parameter conversion model and a target equipment parameter conversion model. The method comprises the steps of obtaining correlation information between injection molding units of initial equipment and target equipment by performing mathematical model correction and conversion on the injection molding units of the initial equipment and the target equipment, and establishing a combination and establishment relation between molding process information of a production target product between the initial equipment and the target equipment based on the correlation information to obtain a corresponding data conversion model.
Specifically, in the present embodiment, the relationship between the process parameters of the initial equipment and the target equipment is as shown in fig. 3. In the figure, a device represents an initiator device, and B device represents a target device.
In one embodiment, step S103 may specifically include:
inputting the initial equipment information and the initial equipment molding process parameter information into an initial equipment parameter conversion model for data conversion to obtain core plastic flow characteristic process parameters corresponding to a target product;
and inputting the core plastic flow characteristic process parameters and the target equipment information into a target equipment parameter conversion model for data conversion to obtain target equipment molding process parameters corresponding to the target product.
In this embodiment, the complete process information (i.e., the initial equipment molding process parameter information) determined by the initial equipment producing the target product is converted into the core plastic flow characteristic process parameter of the target product through the initial equipment mathematical conversion model (i.e., the initial equipment parameter conversion model), and the core plastic flow characteristic process parameter is converted into the complete process information (i.e., the target equipment molding process parameter) of the target product through the target equipment mathematical conversion model (i.e., the target equipment parameter conversion model). In practical application, the preparation work of complete process information conversion is firstly carried out, and then the process information setting is completed according to the standardized setting steps, so that the aim of quickly obtaining products with higher consistency is fulfilled.
In one embodiment, the core plastic flow characteristic process parameters corresponding to the target product include plastic temperature, plastic flow rate, plastic cooling efficiency, and in-mold cavity pressure.
In one embodiment, the method may further comprise:
recording the process parameters of the initial equipment locked when the initial equipment is adopted to produce the target product;
and storing the initial equipment process parameters serving as initial equipment molding process parameter information corresponding to the target product into a process parameter database.
When the initial equipment is used for producing the target product, the locked initial equipment process parameters are recorded and are used as initial equipment molding process parameter information corresponding to the target product to be stored in a process parameter database, so that the initial equipment molding process parameter information can be conveniently called during data conversion.
As shown in fig. 2, for the injection molding process product forming quality consistency improving system disclosed by the present invention, the system may include:
the data acquisition module 201 is configured to acquire initial device information of an initial device, target device information of a target device, and initial device molding process parameter information corresponding to a target product;
when a mold of the same product needs to be used for producing products on different injection molding machine devices, initial device information of initial devices, target device information of target devices and initial device molding process parameter information corresponding to the target product need to be obtained. For example, in the current injection molding field, a mold supplier usually produces an injection mold, and after the mold supplier produces the injection mold, the mold supplier usually needs to use its own injection molding machine to debug and verify the injection mold, so as to check whether the produced injection mold can produce a qualified product, and after verification, the produced injection mold is provided to a product manufacturer for producing a target product. At this time, the product corresponding to the injection mold is the target product, the injection molding machine for producing the target product by the mold supplier is the initial equipment, the injection molding machine for producing the target product by the product manufacturer is the target equipment, and the process parameters for producing the qualified target product by the mold manufacturer are the molding process parameter information of the initial equipment. Because the injection molding machine models, the service life, the screw backflow degree of the injection molding units and other equipment information of the mold manufacturer and the product manufacturer are different, the corresponding molding process parameter combinations are also different, and if the process parameters (namely the initial equipment molding process parameter information) of the injection molding machine of the mold manufacturer are used as the molding process parameters of the product manufacturer, the molding quality states of the products are inconsistent, so that the product manufacturer needs to reset the molding process parameter combinations matched with the injection molding machine.
In the prior art, target injection molding machine equipment is usually used for continuously performing on-site debugging and verification until the quality state of a product is detected to be consistent, so that a corresponding molding process parameter combination is locked. The method is time-consuming and labor-consuming, has low efficiency, and can cause a large amount of resource waste and increase the production cost due to scrapped test products generated by multiple die testing and debugging.
Specifically, the initial device information includes an initial device name, and the target device information includes a target device name.
A model obtaining module 202, configured to obtain a pre-constructed data conversion model;
when a mold of the same product needs to be used for producing products on different injection molding machine devices, a pre-constructed data conversion model also needs to be obtained.
A data conversion module 203, configured to input the initial device information, the target device information, and the initial device molding process parameter information into a data conversion model for data conversion, so as to obtain target device molding process parameter information corresponding to a target product, where,
the target equipment molding process parameter information is a molding process parameter combination which needs to be input into the target equipment when the target equipment is used for producing a target product.
Then, inputting the acquired various pieces of information into the acquired data conversion model to perform data conversion of the process parameters between the initial equipment and the target equipment, so as to obtain the molding process parameter information of the target equipment corresponding to the target product, namely the molding process parameter combination which needs to be input into the target equipment when the target equipment is used for producing the target product. After the molding process parameter information of the target equipment is obtained, when the target equipment is used for producing the target product, the obtained molding process parameter information of the target equipment is only needed to be used as the molding process parameter combination of the target equipment for producing the target product and input into the target equipment, and then the target product is produced, so that the product which is consistent with the molding quality state of the target product produced by the initial equipment can be obtained.
Because the core plastic flow characteristic process parameters for product molding are consistent under the molding quality state of the same product, the same pair of molds and the same product, based on the theoretical basis, a data conversion model can be constructed in advance, the association between the initial equipment and the target equipment for producing the same target product is established, a corresponding data conversion model is formed, and then certain known equipment information and process parameters are input into the data conversion model, so that the molding process parameter combination of the target equipment capable of ensuring the molding quality state consistency of the product is obtained, and the process parameters for producing the target product by the target equipment are not required to be obtained through on-site multiple debugging and verification.
In summary, the present embodiment provides a system for improving consistency of molding quality of an injection molding process product, where when a mold of a same product needs to be used for producing products on different injection molding machine devices, initial device information of an initial device, target device information of a target device, and initial device molding process parameter information corresponding to a target product are obtained first; acquiring a pre-constructed data conversion model; and then inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into a data conversion model for data conversion to obtain target equipment molding process parameter information corresponding to the target product, wherein the target equipment molding process parameter information is a molding process parameter combination which needs to be input into the target equipment when the target product is produced by utilizing the target equipment. The invention can quickly obtain the molding process parameter combination required by the target production equipment when the target product is produced according to the molding process parameter information of the target product produced by the initial production equipment, has high efficiency and low cost, can effectively improve the consistency of the molding quality of the product when the mold of the same product produces the product on different injection molding machine equipment, and effectively meets the increasingly lean production and manufacturing requirements.
In one embodiment, the system further comprises:
and the model building module is used for carrying out mathematical model correction and conversion on the injection molding units of the initial equipment and the target equipment to obtain a data conversion model, wherein the data conversion model comprises an initial equipment parameter conversion model and a target equipment parameter conversion model. The method comprises the steps of obtaining correlation information between injection molding units of initial equipment and target equipment by performing mathematical model correction and conversion on the injection molding units of the initial equipment and the target equipment, and establishing a combination and establishment relation between molding process information of a production target product between the initial equipment and the target equipment based on the correlation information to obtain a corresponding data conversion model.
Specifically, in the present embodiment, the relationship between the process parameters of the initial equipment and the target equipment is as shown in fig. 3. In the figure, a device represents an initiator device, and B device represents a target device.
In one embodiment, the data conversion module 203 comprises:
the first data conversion unit is used for inputting the initial equipment information and the initial equipment molding process parameter information into the initial equipment parameter conversion model for data conversion to obtain core plastic flow characteristic process parameters corresponding to the target product;
and the second data conversion unit is used for inputting the core plastic flow characteristic process parameters and the target equipment information into the target equipment parameter conversion model for data conversion to obtain target equipment molding process parameters corresponding to the target product.
In this embodiment, the complete process information (i.e., the initial equipment molding process parameter information) determined by the initial equipment producing the target product is converted into the core plastic flow characteristic process parameter of the target product through the initial equipment mathematical conversion model (i.e., the initial equipment parameter conversion model), and the core plastic flow characteristic process parameter is converted into the complete process information (i.e., the target equipment molding process parameter) of the target product through the target equipment mathematical conversion model (i.e., the target equipment parameter conversion model). In practical application, the preparation work of complete process information conversion is firstly carried out, and then the process information setting is completed according to the standardized setting steps, so that the aim of quickly obtaining products with higher consistency is fulfilled.
In one embodiment, the core plastic flow characteristic process parameters corresponding to the target product include plastic temperature, plastic flow rate, plastic cooling efficiency, and in-mold cavity pressure.
In one embodiment, the system further comprises:
the data recording module is used for recording the process parameters of the initial equipment locked when the target product is produced by adopting the initial equipment;
and the data storage module is used for storing the initial equipment process parameters serving as the initial equipment molding process parameter information corresponding to the target product into a process parameter database.
When the initial equipment is used for producing the target product, the locked initial equipment process parameters are recorded and are used as initial equipment molding process parameter information corresponding to the target product to be stored in a process parameter database, so that the initial equipment molding process parameter information can be conveniently called during data conversion.
Specifically, in the real-time development process, the data conversion system implementing the functions of the present invention may include several large modules, namely, an equipment database, a process parameter database, and a conversion program module, which are integrated into a whole by secondary programming of EXCEL VBA, and the main operation interface of the system is shown in fig. 4. The functions of information updating, tracing and fast conversion are realized. In this particular example:
and the equipment database is used for storing and recording parameter data required by key conversion of the equipment, ensuring the accuracy of equipment information and allowing a conversion program to call corresponding data at any time.
And the process parameter database is used for storing and recording the locked forming process parameter data, ensuring the data to be correct and calling the corresponding data at any time by the conversion program.
And the conversion program module integrates a data conversion model of core plastic flow characteristic parameters, and converts the background of the conversion program module into the molding process parameter data required to be set by the target equipment by selecting the locked molding process parameter data corresponding to the primary equipment and then selecting the information parameter of the target equipment.
The process of obtaining the molding process parameter information of the target equipment by performing data conversion on the molding process parameter information of the starting equipment through the system comprises the following steps:
1. recording the locked initial equipment process parameters and storing the parameters into a process parameter database; the system interface for recording and saving the initial equipment process parameters is shown in fig. 5 and fig. 6.
2. And selecting the molding process information of the initial equipment, the equipment information of the initial equipment and the equipment information of the target equipment, and confirming the conversion after the completion. The operational interface is shown in fig. 7.
3. And after the transfer is confirmed, obtaining the molding process parameter information of the target equipment. Interfaces for confirming the information of the molding process parameters of the target device displayed after the conversion are shown in fig. 8 to 9.
Furthermore, an embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, which when executed by a processor implements the functions of the system as described above.
In this embodiment, the integrated module/unit of the injection molding process product molding quality consistency improving system may be stored in a computer-readable storage medium if it is implemented in the form of a software functional unit and sold or used as an independent product. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
Those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A method for improving the consistency of the molding quality of an injection molding process product is characterized by comprising the following steps:
acquiring initial equipment information of initial equipment, target equipment information of target equipment and initial equipment molding process parameter information corresponding to a target product;
acquiring a pre-constructed data conversion model;
inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into the data conversion model for data conversion to obtain target equipment molding process parameter information corresponding to the target product, wherein,
the target equipment forming process parameter information is a forming process parameter combination which needs to be input into the target equipment when the target equipment is used for producing the target product.
2. An injection molding process product molding quality consistency promotion method as claimed in claim 1, further comprising:
and carrying out mathematical model correction and conversion on the injection molding units of the initial equipment and the target equipment to obtain the data conversion model, wherein the data conversion model comprises an initial equipment parameter conversion model and a target equipment parameter conversion model.
3. The method for improving the molding quality consistency of injection molding process products according to claim 2, wherein the step of inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into the data conversion model for data conversion to obtain the target equipment molding process parameter information corresponding to the target product comprises the steps of:
inputting the initial equipment information and the initial equipment molding process parameter information into the initial equipment parameter conversion model for data conversion to obtain core plastic flow characteristic process parameters corresponding to the target product;
and inputting the core plastic flow characteristic process parameters and the target equipment information into the target equipment parameter conversion model for data conversion to obtain target equipment molding process parameters corresponding to the target product.
4. The injection molding process product forming quality consistency promotion method according to claim 3,
the core plastic flow characteristic process parameters corresponding to the target product comprise plastic temperature, plastic flow rate, plastic cooling efficiency and mold cavity pressure in a mold.
5. An injection molding process product molding quality consistency promotion method according to any one of claims 1-4, characterized in that the method further comprises:
recording the process parameters of the initial equipment locked when the target product is produced by the initial equipment;
and storing the initial equipment process parameters serving as initial equipment molding process parameter information corresponding to the target product into a process parameter database.
6. An injection molding process product forming quality uniformity improving system, characterized in that the system comprises:
the data acquisition module is used for acquiring initial equipment information of initial equipment, target equipment information of target equipment and initial equipment molding process parameter information corresponding to a target product;
the model acquisition module is used for acquiring a pre-constructed data conversion model;
a data conversion module for inputting the initial equipment information, the target equipment information and the initial equipment molding process parameter information into the data conversion model for data conversion to obtain the target equipment molding process parameter information corresponding to the target product,
the target equipment forming process parameter information is a forming process parameter combination which needs to be input into the target equipment when the target equipment is used for producing the target product.
7. An injection molding process product molding quality consistency promotion system as claimed in claim 6, further comprising:
and the model building module is used for carrying out mathematical model correction and conversion on the injection molding units of the initial equipment and the target equipment to obtain the data conversion model, wherein the data conversion model comprises an initial equipment parameter conversion model and a target equipment parameter conversion model.
8. An injection molding process product molding quality consistency promotion system as claimed in claim 7, wherein said data conversion module comprises:
the first data conversion unit is used for inputting the initial equipment information and the initial equipment molding process parameter information into the initial equipment parameter conversion model for data conversion to obtain core plastic flow characteristic process parameters corresponding to the target product;
and the second data conversion unit is used for inputting the core plastic flow characteristic process parameters and the target equipment information into the target equipment parameter conversion model for data conversion to obtain target equipment molding process parameters corresponding to the target product.
9. An injection molding process product molding quality consistency promotion system as claimed in claim 8,
the core plastic flow characteristic process parameters corresponding to the target product comprise plastic temperature, plastic flow rate, plastic cooling efficiency and mold cavity pressure in a mold.
10. An injection molding process product molding quality consistency promotion system as claimed in any one of claims 6-9, further comprising:
the data recording module is used for recording the process parameters of the initial equipment locked when the target product is produced by adopting the initial equipment;
and the data storage module is used for storing the initial equipment process parameters as initial equipment molding process parameter information corresponding to the target product to a process parameter database.
CN202011550566.3A 2020-12-24 2020-12-24 Method and system for improving consistency of molding quality of injection molding process product Pending CN112776293A (en)

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Application publication date: 20210511