Injection molding machine mold opening control method, system and device and storage medium

Abstract

The invention relates to the technical field of injection molding machine control, and discloses an injection molding machine mold opening control method, system and device and a storage medium. The method comprises the following steps: acquiring parameters of an injection molding machine product; according to the parameters of the injection molding machine product, a molding time formula is constructed, and injection molding time is obtained; according to the parameters of the injection molding machine product, an injection molding pressure formula is constructed, and injection molding pressure is obtained; according to the injection molding time and the injection molding pressure, injection molding driver control parameters are obtained; and obtaining automatic control information according to the control parameters of the injection molding driver. The method has the following effects that automatic control over mold opening of the injection molding machine is achieved, the precision and efficiency of mold opening control are improved, and meanwhile the quality of the mold closing and opening process after injection molding is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding machine control, and in particular to an injection molding machine mold opening control method, system, device and storage medium. Background Art

[0002] At present, injection molding machines are injection molding equipment specially used to make plastic products. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by the injection molding machine, and after cooling, a molded product is obtained. The injection molding machine includes an injection molding mold, which is customized according to product parameters. During injection molding, the injection molding mold needs to be opened to produce a cavity. The injection molding components of the injection molding machine, such as the injection molding head, are used to fill the injection molding mold with plasticized glue, and the product is injection molded. Finally, the mold is closed, and the injection molded product is cooled to obtain the product. Among them, mold opening is the key to injection molding. To realize mold opening, a mold opening drive mechanism needs to be set up, and the mold opening drive mechanism and the injection molding mold are closed and opened.

[0003] The mold opening control of the existing injection molding machine is generally determined by the operator whether the injection molding mold has been injection molded and needs to be opened, and then the mold opening drive mechanism is manually switched on and off. The injection molding machine includes an injection molding device and an injection molding frame. The injection molding device includes an injection molding mold and an injection molding mold clamping mechanism. The injection molding mold clamping mechanism is used to fix the product in the injection molding mold. The injection molding device has mold closing and mold opening. The injection molding mold clamping mechanism includes a clamping drive assembly and a clamping plate. The clamping plate is raised and lowered under the action of the clamping drive assembly, thereby achieving the clamping of the injection mold and improving the injection molding quality of the injection mold. The equipment requires manual operation to open the mold of the injection molding equipment.

[0004] The mold opening control of the injection molding machine relies on the operator's control over the mechanical equipment, which has the characteristics of manual intervention and is difficult to achieve precise control. The mold opening control time is inaccurate, or after the mold opening drive mechanism is manually switched on and off, the mold opening drive mechanism, injection molding mold, etc. are not monitored. There will be quality problems in the process of mold closing and mold opening after injection molding. Summary of the invention

[0005] The present invention provides an injection molding machine mold opening control method, system, device and storage medium to realize the automatic control of the injection molding machine mold opening, improve the accuracy and efficiency of the mold opening control, and ensure the process quality of mold closing and mold opening after injection molding.

[0006] In a first aspect, in order to solve the above technical problems, the present invention provides a method for controlling mold opening of an injection molding machine, comprising: Get the parameters of injection molding machine products; According to the parameters of the injection molding machine product, a molding time formula is constructed to obtain the injection molding time; According to the parameters of the injection molding machine product, an injection pressure formula is constructed to obtain the injection pressure; According to the injection molding time and the injection molding pressure, an injection driving machine control parameter is obtained; Automatic control information is obtained according to the injection molding drive machine control parameters.

[0007] As an optional implementation, the obtaining of the parameters of the injection molding machine product includes: The injection molding machine is measured by a measuring tool to obtain the side length of the injection molding machine; According to the side length of the injection molding machine, the area of ​​the injection molding machine is obtained; According to the area of ​​the injection molding machine, the volume of the injection molding machine is obtained; Among them, the side length dimensions of the injection molding machine include: the side length dimensions of the frame of the molding machine, the side length dimensions of the injection pressure chamber in the injection molding machine, the side length dimensions of the core of the injection mold and the side length dimensions of the mold frame of the injection mold; the area of ​​the injection molding machine includes: the cross-sectional area of ​​the core of the injection molding machine, the area of ​​the mold frame and the area of ​​the mold cavity; the volume of the injection molding machine includes: the volume of the product mold and the volume of the product.

[0008] As an optional implementation, constructing a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time includes: According to the parameters of the injection molding machine product, the mold loading time of the injection molding machine is obtained; According to the parameters of the injection molding machine product, the running time of the injection molding head from the opening point to the mold core direction is calculated to obtain the injection forward time; According to the parameters of the injection molding machine product, the running time of the injection molding head from the upper end of the mold core to the lower end of the mold core is calculated to obtain the injection molding process time; According to the parameters of the injection molding machine product, the running time of the injection molding head from the mold core to the fixed point is calculated to obtain the injection molding return time; The injection molding time is obtained according to the mold loading time of the injection molding machine, the injection forward time, the injection process time and the injection return time.

[0009] As an optional implementation manner, obtaining the mold loading time of the injection molding machine according to the parameters of the injection molding machine product includes: According to the parameters of the injection molding machine product, the upper mold side length, the mold side length and the model side length are obtained; Obtaining a mold-on time of an injection molding machine according to the upper mold side length, the mold side length, and the model side length; Wherein, obtaining the mold-on time of the injection molding machine according to the upper mold side length, the mold side length and the model side length includes: obtaining the mold-on time of the injection molding machine by calculating through the following formula: In the formula, Indicates the mold loading time of the injection molding machine. is the side length of the upper die, is the side length of the mold, is the side length of the core, It is the running speed of the upper die process.

[0010] As an optional implementation manner, constructing an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection pressure includes: According to the parameters of the injection molding machine product, the injection molding rate of the injection molding machine molding component is obtained; According to the injection rate, an injection pressure is obtained; Wherein, according to the parameters of the injection molding machine product, the injection molding rate of the molding component of the injection molding machine is obtained, including: the injection molding rate is calculated by the following formula: In the formula, Indicates the injection rate, Indicates the flow rate of the injection molding machine, Represents the area of ​​the mold cavity; the flow rate of the injection molding machine is determined by the screw speed of the injection molding machine and the cross-sectional area of ​​the injection molding machine core, and is calculated by the following formula: ' In the formula, Indicates the cross-sectional area of ​​the injection molding machine core. 'Indicates the screw speed of the injection molding machine.

[0011] As an optional implementation manner, obtaining the injection pressure according to the injection rate includes: According to the injection molding rate, the pressure of the injection molding head on the mold core is obtained; Obtaining injection pressure according to the pressure of the injection molding head on the mold core; Wherein, according to the injection molding rate, obtaining the pressure of the injection molding head on the mold core includes: calculating the pressure of the injection molding head on the mold core by the following formula: In the formula, Indicates the viscosity of the injection molded object, L indicates the sum of the side lengths of the core of the injection mold, Indicates the injection rate, Represents the area of ​​the mold cavity, Represents the inscribed circle radius of the core of the injection mold.

[0012] As an optional implementation manner, obtaining the injection molding drive machine control parameters according to the injection molding time and the injection pressure includes: Obtaining an injection molding cycle according to the injection molding time and the injection molding pressure; According to the injection molding cycle, controlling the injection molding rate to obtain a second injection molding rate; According to the injection molding cycle and in combination with the characteristics of the injection molding material, a cooling time is obtained; According to the cooling time, a control parameter of the mold opening stage is obtained; Obtaining injection drive machine control parameters according to the second injection rate and the mold opening stage control parameters; Wherein, the injection molding cycle is obtained according to the injection molding time and the injection molding pressure, and the injection molding cycle includes: filling stage time, pressure holding stage time, cooling stage time and mold opening stage time.

[0013] As an optional implementation, the automatic control information is obtained according to the control parameters of the injection molding drive machine, including: According to the control parameters of the injection molding drive machine, information feedback is performed to obtain feedback information; Performing data processing according to the feedback information to obtain correction information; Obtaining automatic control information according to the correction information; The step of performing data processing according to the feedback information to obtain correction information includes: adding the feedback information to the injection molding drive machine control parameter to obtain correction information.

[0014] In a second aspect, the present invention provides an injection molding machine mold opening control system, characterized in that it includes: Parameter acquisition module, used to obtain the parameters of injection molding machine products; A time calculation module, used to construct a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time; A pressure calculation module, used to construct an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection pressure; A parameter determination module, used for obtaining a control parameter of an injection molding drive machine according to the injection molding time and the injection molding pressure; The automatic control module is used to obtain automatic control information according to the control parameters of the injection molding drive machine.

[0015] In a third aspect, the present invention further provides an electronic device, comprising a processor, a memory, and a computer program stored in the memory and configured to be executed by the processor, wherein when the processor executes the computer program, an injection molding machine mold opening control method as described in any one of the above is implemented.

[0016] In a fourth aspect, the present invention further provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored computer program, wherein when the computer program is running, the device where the computer-readable storage medium is located is controlled to execute any one of the above-mentioned injection molding machine mold opening control methods.

[0017] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a method, system, device and storage medium for controlling mold opening of an injection molding machine. The method is executed by a controller and includes: obtaining parameters of an injection molding machine product; constructing a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time; constructing an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection molding pressure; obtaining injection molding drive machine control parameters according to the injection molding time and the injection molding pressure; and obtaining automatic control information according to the injection molding drive machine control parameters. After obtaining key parameters from the technical manual or sensor of the injection molding machine, a molding time formula is constructed to calculate the injection molding time, and the injection molding pressure is calculated by a fluid mechanics formula. Using these time and pressure data, the control parameters of the injection molding drive machine, such as screw speed and position, holding pressure and time, etc., are determined, thereby generating automatic control information and realizing accurate injection molding process control. The present invention provides a more intelligent method for controlling mold opening of an injection molding machine to realize automatic control of mold opening of an injection molding machine, improve the accuracy and efficiency of mold opening control, and ensure the process quality of mold closing and mold opening after injection molding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic flow chart of a method for controlling mold opening of an injection molding machine provided by the first embodiment of the present invention; Figure 2 It is a schematic structural diagram of a mold opening control system for an injection molding machine provided by the second embodiment of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] An injection molding machine is a special injection molding equipment used to make plastic products. Injection molding is a processing method used in the mass production of certain parts with complex shapes. Specifically, it refers to the high-pressure injection of heated and melted plastic into the mold cavity by the injection molding machine, and after cooling, a molded product is obtained. The injection molding machine includes an injection molding mold, which is customized according to product parameters. During injection molding, the injection molding mold needs to be opened to produce a cavity. The injection molding components of the injection molding machine, such as the injection molding head, are used to fill the injection molding mold with plasticized glue, and the product is injection molded. Finally, the mold is closed, and the injection molded product is cooled to obtain the product. Among them, mold opening is the key to injection molding. To realize mold opening, a mold opening drive mechanism needs to be set up, and the mold opening drive mechanism and the injection molding mold are closed and opened.

[0021] The mold opening control of the existing injection molding machine is generally determined by the operator whether the injection molding mold has been injection molded and needs to be opened, and then the mold opening drive mechanism is manually switched on and off. The injection molding machine includes an injection molding device and an injection molding frame. The injection molding device includes an injection molding mold and an injection molding mold clamping mechanism. The injection molding mold clamping mechanism is used to fix the product in the injection molding mold. The injection molding device has mold closing and mold opening. The injection molding mold clamping mechanism includes a clamping drive assembly and a clamping plate. The clamping plate is raised and lowered under the action of the clamping drive assembly, thereby achieving the clamping of the injection mold and improving the injection molding quality of the injection mold. The equipment requires manual operation to open the mold of the injection molding equipment.

[0022] The mold opening control of the injection molding machine relies on the operator's control over the mechanical equipment, which has the characteristics of manual intervention and is difficult to achieve precise control. The mold opening control time is inaccurate, or after the mold opening drive mechanism is manually switched on and off, the mold opening drive mechanism, injection molding mold, etc. are not monitored. There will be quality problems in the process of mold closing and mold opening after injection molding.

[0023] In order to solve the above problems, a fire safety early warning method for an energy storage system provided in an embodiment of the present application will be introduced and explained in detail through the following specific embodiments.

[0024] Reference Figure 1 The first embodiment of the present invention provides a method for controlling mold opening of an injection molding machine, comprising the following steps: S11, obtaining parameters of the injection molding machine product.

[0025] S12, constructing a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time.

[0026] S13, constructing an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection pressure.

[0027] S14, obtaining injection molding drive machine control parameters according to the injection molding time and the injection pressure.

[0028] S15, obtaining automatic control information according to the injection molding drive machine control parameters.

[0029] It should be noted that there are many types of injection molding machines, including standard hydraulic injection molding machines, all-electric injection molding machines, hybrid drive injection molding machines and double-shot injection molding machines, etc., which vary in size and application. Small injection molding machines are suitable for the production of small precision parts, with a compact body and small footprint; medium and large injection molding machines are suitable for large products or high-volume production, with high clamping force and injection capacity. Injection molding machines of different sizes and types meet a wide range of production needs from micro parts to large industrial components.

[0030] The present invention provides a method, system, device and storage medium for controlling mold opening of an injection molding machine. The method is executed by a controller and includes: obtaining parameters of an injection molding machine product; constructing a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time; constructing an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection molding pressure; obtaining injection molding drive machine control parameters according to the injection molding time and the injection molding pressure; and obtaining automatic control information according to the injection molding drive machine control parameters. After obtaining key parameters from the technical manual or sensor of the injection molding machine, a molding time formula is constructed to calculate the injection molding time, and the injection molding pressure is calculated by a fluid mechanics formula. Using these time and pressure data, the control parameters of the injection molding drive machine, such as screw speed and position, holding pressure and time, etc., are determined, thereby generating automatic control information and realizing accurate injection molding process control. The present invention provides a more intelligent method for controlling mold opening of an injection molding machine to realize automatic control of mold opening of an injection molding machine, improve the accuracy and efficiency of mold opening control, and ensure the process quality of mold closing and mold opening after injection molding.

[0031] In order to facilitate the understanding of the present invention, some preferred embodiments of the present invention are further described below.

[0032] In step S11, the parameters of the injection molding machine product are obtained, including: The injection molding machine is measured by a measuring tool to obtain the side length of the injection molding machine; According to the side length of the injection molding machine, the area of ​​the injection molding machine is obtained; According to the area of ​​the injection molding machine, the volume of the injection molding machine is obtained; Among them, the side length dimensions of the injection molding machine include: the side length dimensions of the frame of the molding machine, the side length dimensions of the injection pressure chamber in the injection molding machine, the side length dimensions of the core of the injection mold and the side length dimensions of the mold frame of the injection mold; the area of ​​the injection molding machine includes: the cross-sectional area of ​​the core of the injection molding machine, the area of ​​the mold frame and the area of ​​the mold cavity; the volume of the injection molding machine includes: the volume of the product mold and the volume of the product.

[0033] It should be noted that, according to the side length of the injection molding machine, the area of ​​the injection molding machine is obtained, including: performing relevant calculations according to the side length of the injection molding machine to obtain the area of ​​the injection molding machine. If the shape of the relevant image is a rectangle, the side length of the injection molding machine is multiplied to obtain the area of ​​the injection molding machine. If the shape of the relevant image is a circle, the area of ​​the injection molding machine is calculated using the area calculation formula of the circle.

[0034] In step S12, a molding time formula is constructed according to the parameters of the injection molding machine product to obtain the injection molding time, including: According to the parameters of the injection molding machine product, the mold loading time of the injection molding machine is obtained; According to the parameters of the injection molding machine product, the running time of the injection molding head from the opening point to the mold core direction is calculated to obtain the injection forward time; According to the parameters of the injection molding machine product, the running time of the injection molding head from the upper end of the mold core to the lower end of the mold core is calculated to obtain the injection molding process time; According to the parameters of the injection molding machine product, the running time of the injection molding head from the mold core to the fixed point is calculated to obtain the injection molding return time; The injection molding time is obtained according to the mold loading time of the injection molding machine, the injection forward time, the injection process time and the injection return time.

[0035] It should be noted that the mold loading time of the injection molding machine is obtained according to the parameters of the injection molding machine product, including: According to the parameters of the injection molding machine product, the upper mold side length, the mold side length and the model side length are obtained; Obtaining a mold-on time of an injection molding machine according to the upper mold side length, the mold side length, and the model side length; Wherein, obtaining the mold-on time of the injection molding machine according to the upper mold side length, the mold side length and the model side length includes: obtaining the mold-on time of the injection molding machine by calculating through the following formula: In the formula, Indicates the mold loading time of the injection molding machine. is the side length of the upper die, is the side length of the mold, is the side length of the core, It is the running speed of the upper die process.

[0036] It should be further explained that the running speed of the upper mold process is preset by the user and can be 1 m / s, which is reasonable and is not specifically limited here.

[0037] It should be noted that the parameters of the injection molding machine product, the time for the injection molding head to run from the opening point to the mold core, and the injection forward time are calculated, including: calculating the distance between the opening point and the mold core , according to the running speed of the injection molding machine , and the injection molding forward time is calculated by the following formula: In the formula, It indicates the injection molding forward time. Indicates the distance from the opening point to the mold core. Indicates the operating speed of the injection molding machine. The operating speed of the injection molding machine is preset by the user and can be 1 m / s. Any reasonable speed is sufficient and is not specifically limited here.

[0038] It should be noted that, according to the parameters of the injection molding machine product, the running time of the injection molding head from the upper end of the mold core to the lower end of the mold core is calculated to obtain the injection process time, including: calculating the distance from the upper end of the mold core to the lower end of the mold core , according to the running speed of the injection molding machine , and the injection molding forward time is calculated by the following formula: In the formula, It indicates the injection molding forward time. Indicates the distance from the opening point to the mold core. Indicates the operating speed of the injection molding machine.

[0039] It should be further explained that the injection molding time is obtained based on the mold-on time of the injection molding machine, the injection pre-molding time, the injection process time, and the injection return time, including adding the mold-on time of the injection molding machine, the injection pre-molding time, the injection process time, and the injection return time to obtain the injection molding time.

[0040] In step S13, the injection pressure formula is constructed according to the parameters of the injection molding machine product to obtain the injection pressure, including: According to the parameters of the injection molding machine product, the injection molding rate of the injection molding machine molding component is obtained; According to the injection rate, an injection pressure is obtained; Wherein, according to the parameters of the injection molding machine product, the injection molding rate of the molding component of the injection molding machine is obtained, including: the injection molding rate is calculated by the following formula: In the formula, Indicates the injection rate, Indicates the flow rate of the injection molding machine, Represents the area of ​​the mold cavity; the flow rate of the injection molding machine is determined by the screw speed of the injection molding machine and the cross-sectional area of ​​the injection molding machine core, and is calculated by the following formula: ' In the formula, Indicates the cross-sectional area of ​​the injection molding machine core. 'Indicates the screw speed of the injection molding machine.

[0041] It should be noted that the screw speed of the injection molding machine is preset by the user and can be 1 m / s, which is reasonable and is not specifically limited here.

[0042] It should be further noted that the injection pressure is obtained according to the injection rate, including: According to the injection molding rate, the pressure of the injection molding head on the mold core is obtained; Obtaining injection pressure according to the pressure of the injection molding head on the mold core; Wherein, according to the injection molding rate, obtaining the pressure of the injection molding head on the mold core includes: calculating the pressure of the injection molding head on the mold core by the following formula: In the formula, Indicates the viscosity of the injection molded object, L indicates the sum of the side lengths of the core of the injection mold, Indicates the injection rate, Represents the area of ​​the mold cavity, Represents the inscribed circle radius of the injection mold core.

[0043] It should be further explained that the injection pressure is obtained according to the pressure of the injection molding head on the mold core, including: the injection pressure includes the pressure of the injection molding head on the mold core, the pressure of the injection molding head at a fixed point and the injection pressure of the injection molding machine, wherein the injection pressure of the injection molding machine is equal to the pressure of the injection molding head at the fixed point and the pressure of the injection molding head on the mold core.

[0044] In step S14, the injection molding drive machine control parameters are obtained according to the injection molding time and the injection pressure, including: Obtaining an injection molding cycle according to the injection molding time and the injection molding pressure; According to the injection molding cycle, controlling the injection molding rate to obtain a second injection molding rate; According to the injection molding cycle and in combination with the characteristics of the injection molding material, a cooling time is obtained; According to the cooling time, a control parameter of the mold opening stage is obtained; Obtaining injection drive machine control parameters according to the second injection rate and the mold opening stage control parameters; Wherein, the injection molding cycle is obtained according to the injection molding time and the injection molding pressure, and the injection molding cycle includes: filling stage time, pressure holding stage time, cooling stage time and mold opening stage time.

[0045] It should be noted that the filling stage time is equal to the injection molding time, and the holding stage time, cooling stage time and mold opening stage time are set by the user in advance based on the characteristics of the injection molding material, and can be 5 minutes, 3 minutes and 5 minutes, as long as they are reasonable and are not specifically limited here.

[0046] It should be further explained that the injection molding drive machine control parameters are obtained according to the second injection molding rate and the mold opening stage control parameters, including: according to the second injection molding rate and the mold opening stage control parameters, the injection molding rate in the system is replaced or the numerical values ​​are added or subtracted to obtain the injection molding drive machine control parameters.

[0047] In step S15, the automatic control information is obtained according to the control parameters of the injection molding drive machine, including: According to the control parameters of the injection molding drive machine, information feedback is performed to obtain feedback information; Performing data processing according to the feedback information to obtain correction information; Obtaining automatic control information according to the correction information; The step of performing data processing according to the feedback information to obtain correction information includes: adding the feedback information to the injection molding drive machine control parameter to obtain correction information.

[0048] It should be noted that the information feedback is performed according to the injection molding drive machine control parameters to obtain feedback information, including: the operating effect in actual operation according to the injection molding drive machine control parameters, if the injection molding shape does not meet the requirements during the operation, the feedback information is obtained.

[0049] In summary, the present invention provides a method, system, device and storage medium for controlling mold opening of an injection molding machine. The method is executed by a controller, including: obtaining parameters of an injection molding machine product; constructing a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time; constructing an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection molding pressure; obtaining injection molding drive machine control parameters according to the injection molding time and the injection molding pressure; and obtaining automatic control information according to the injection molding drive machine control parameters. After obtaining key parameters from the technical manual or sensor of the injection molding machine, a molding time formula is constructed to calculate the injection molding time, and the injection molding pressure is calculated by a fluid mechanics formula. Using these time and pressure data, the control parameters of the injection molding drive machine, such as screw speed and position, holding pressure and time, etc., are determined, thereby generating automatic control information and realizing accurate injection molding process control. The present invention provides a more intelligent method for controlling mold opening of an injection molding machine to realize automatic control of mold opening of an injection molding machine, improve the accuracy and efficiency of mold opening control, and ensure the process quality of mold closing and mold opening after injection molding.

[0050] In order to facilitate the understanding of the present invention, some preferred embodiments of the present invention are further described below.

[0051] In an embodiment of the present invention, a mold opening control system for an injection molding machine is proposed, and the system consists of the following key parts: a parameter acquisition system, a molding time calculation system, an injection pressure calculation system, a drive machine control parameter determination system, and an automatic control information generation system. The parameter acquisition system is used to obtain key parameters of the injection molding machine, such as side length, area, and volume, through measuring tools; the molding time calculation system calculates the injection molding time, forward time, process time, and regression time based on the acquired parameters, and accumulates the overall molding time; the injection pressure calculation system calculates the pressure of the injection molding head on the mold core based on the injection rate and fluid mechanics formula, and finally obtains the injection pressure; the drive machine control parameter determination system is used to calculate the injection molding cycle and the time of each stage, and combines the characteristics of the injection molding material to obtain the control parameters of the cooling time and the mold opening stage; the automatic control information generation system corrects the control parameters through information feedback and data processing, and generates the final automatic control information to optimize the injection molding process.

[0052] Step 1: Use measuring tools to measure the injection molding machine in detail and obtain the side length dimensions of the injection molding machine. These dimension data include the side length dimensions of the frame, injection pressure chamber, mold core and mold frame. Based on these dimension data, the area and volume of the injection molding machine are further calculated to ensure that the geometric parameters of the injection molding machine product can be fully obtained.

[0053] Step 2: Based on the obtained injection molding machine product parameters, construct a molding time formula to calculate the injection molding time. This process includes calculating the injection molding machine's mold loading time, injection pre-injection time, injection process time, and injection return time. These times are accumulated to finally obtain the complete injection molding time.

[0054] Step 3: Based on the previously obtained injection molding machine product parameters, construct the injection pressure formula and calculate the injection pressure. First, calculate the injection rate of the injection molding component, then calculate the pressure of the injection molding head on the mold core based on this rate, and finally get the required injection pressure.

[0055] Step 4: Determine the control parameters of the injection molding drive according to the calculated injection molding time and injection molding pressure. This step includes calculating the injection molding cycle and the time of each stage, determining the cooling time based on the characteristics of the injection molding material, and generating the control parameters of the mold opening stage.

[0056] Step 5: Generate automatic control information based on the control parameters of the injection molding drive machine. Through feedback information and data processing, the control parameters are corrected and finally the optimized automatic control information is generated to ensure that the mold opening process of the injection molding machine can be carried out efficiently and accurately.

[0057] Step 6: During the actual operation of the injection molding machine, real-time operations are performed based on the automatic control information generated above. At the same time, feedback information during the operation is obtained, data is processed, correction information is obtained, and the automatic control information is further optimized based on the correction information to continuously improve the quality and efficiency of injection molding.

[0058] In summary, the present invention provides a method, system, device and storage medium for controlling mold opening of an injection molding machine. The method is executed by a controller, including: obtaining parameters of an injection molding machine product; constructing a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time; constructing an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection molding pressure; obtaining injection molding drive machine control parameters according to the injection molding time and the injection molding pressure; and obtaining automatic control information according to the injection molding drive machine control parameters. After obtaining key parameters from the technical manual or sensor of the injection molding machine, a molding time formula is constructed to calculate the injection molding time, and the injection molding pressure is calculated by a fluid mechanics formula. Using these time and pressure data, the control parameters of the injection molding drive machine, such as screw speed and position, holding pressure and time, etc., are determined, thereby generating automatic control information and realizing accurate injection molding process control. The present invention provides a more intelligent method for controlling mold opening of an injection molding machine to realize automatic control of mold opening of an injection molding machine, improve the accuracy and efficiency of mold opening control, and ensure the process quality of mold closing and mold opening after injection molding.

[0059] Reference Figure 2The second embodiment of the present invention provides a mold opening control system for an injection molding machine, comprising: Parameter acquisition module, used to obtain the parameters of injection molding machine products; A time calculation module, used to construct a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time; A pressure calculation module, used to construct an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection pressure; A parameter determination module, used for obtaining a control parameter of an injection molding drive machine according to the injection molding time and the injection molding pressure; The automatic control module is used to obtain automatic control information according to the control parameters of the injection molding drive machine.

[0060] In one implementation, the parameter acquisition module includes: The injection molding machine is measured by a measuring tool to obtain the side length of the injection molding machine; According to the side length of the injection molding machine, the area of ​​the injection molding machine is obtained; According to the area of ​​the injection molding machine, the volume of the injection molding machine is obtained; Among them, the side length dimensions of the injection molding machine include: the side length dimensions of the frame of the molding machine, the side length dimensions of the injection pressure chamber in the injection molding machine, the side length dimensions of the core of the injection mold and the side length dimensions of the mold frame of the injection mold; the area of ​​the injection molding machine includes: the cross-sectional area of ​​the core of the injection molding machine, the area of ​​the mold frame and the area of ​​the mold cavity; the volume of the injection molding machine includes: the volume of the product mold and the volume of the product.

[0061] In one implementation, the time calculation module includes: According to the parameters of the injection molding machine product, the mold loading time of the injection molding machine is obtained; According to the parameters of the injection molding machine product, the running time of the injection molding head from the opening point to the mold core direction is calculated to obtain the injection forward time; According to the parameters of the injection molding machine product, the running time of the injection molding head from the upper end of the mold core to the lower end of the mold core is calculated to obtain the injection molding process time; According to the parameters of the injection molding machine product, the running time of the injection molding head from the mold core to the fixed point is calculated to obtain the injection molding return time; The injection molding time is obtained according to the mold loading time of the injection molding machine, the injection forward time, the injection process time and the injection return time.

[0062] Wherein, obtaining the mold loading time of the injection molding machine according to the parameters of the injection molding machine product includes: According to the parameters of the injection molding machine product, the upper mold side length, the mold side length and the model side length are obtained; Obtaining a mold-on time of an injection molding machine according to the upper mold side length, the mold side length, and the model side length; Wherein, obtaining the mold-on time of the injection molding machine according to the upper mold side length, the mold side length and the model side length includes: obtaining the mold-on time of the injection molding machine by calculating through the following formula: In the formula, Indicates the mold loading time of the injection molding machine. is the side length of the upper die, is the side length of the mold, is the side length of the core, It is the running speed of the upper die process.

[0063] In one embodiment, the pressure calculation module includes: According to the parameters of the injection molding machine product, the injection molding rate of the injection molding machine molding component is obtained; According to the injection rate, an injection pressure is obtained; Wherein, according to the parameters of the injection molding machine product, the injection molding rate of the molding component of the injection molding machine is obtained, including: the injection molding rate is calculated by the following formula: In the formula, Indicates the injection rate, Indicates the flow rate of the injection molding machine, Represents the area of ​​the mold cavity; the flow rate of the injection molding machine is determined by the screw speed of the injection molding machine and the cross-sectional area of ​​the injection molding machine core, and is calculated by the following formula: ' In the formula, Indicates the cross-sectional area of ​​the injection molding machine core. 'Indicates the screw speed of the injection molding machine.

[0064] Wherein, obtaining the injection pressure according to the injection rate includes: According to the injection molding rate, the pressure of the injection molding head on the mold core is obtained; Obtaining injection pressure according to the pressure of the injection molding head on the mold core; Wherein, according to the injection molding rate, obtaining the pressure of the injection molding head on the mold core includes: calculating the pressure of the injection molding head on the mold core by the following formula: In the formula, Indicates the viscosity of the injection molded object, L indicates the sum of the side lengths of the core of the injection mold, Indicates the injection rate, Represents the area of ​​the mold cavity, Represents the inscribed circle radius of the injection mold core.

[0065] In one implementation, the parameter determination module includes: According to the control parameters of the injection molding drive machine, information feedback is performed to obtain feedback information; Performing data processing according to the feedback information to obtain correction information; Obtaining automatic control information according to the correction information; The step of performing data processing according to the feedback information to obtain correction information includes: adding the feedback information to the injection molding drive machine control parameter to obtain correction information.

[0066] In one embodiment, the automatic control module comprises: According to the control parameters of the injection molding drive machine, information feedback is performed to obtain feedback information; Performing data processing according to the feedback information to obtain correction information; Obtaining automatic control information according to the correction information; The step of performing data processing according to the feedback information to obtain correction information includes: adding the feedback information to the injection molding drive machine control parameter to obtain correction information.

[0067] In summary, the present invention provides a method, system, device and storage medium for controlling mold opening of an injection molding machine. The method is executed by a controller, including: obtaining parameters of an injection molding machine product; constructing a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time; constructing an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection molding pressure; obtaining injection molding drive machine control parameters according to the injection molding time and the injection molding pressure; and obtaining automatic control information according to the injection molding drive machine control parameters. After obtaining key parameters from the technical manual or sensor of the injection molding machine, a molding time formula is constructed to calculate the injection molding time, and the injection molding pressure is calculated by a fluid mechanics formula. Using these time and pressure data, the control parameters of the injection molding drive machine, such as screw speed and position, holding pressure and time, etc., are determined, thereby generating automatic control information and realizing accurate injection molding process control. The present invention provides a more intelligent method for controlling mold opening of an injection molding machine to realize automatic control of mold opening of an injection molding machine, improve the accuracy and efficiency of mold opening control, and ensure the process quality of mold closing and mold opening after injection molding.

[0068] It should be noted that an injection molding machine mold opening control system provided in an embodiment of the present invention is used to execute all process steps of an injection molding machine mold opening control method in the above embodiment. The working principles and beneficial effects of the two correspond one to one, and thus will not be elaborated upon.

[0069] The embodiment of the present invention further provides an electronic device. The electronic device includes: a processor, a memory, and a computer program stored in the memory and executable on the processor, such as a parameter acquisition program. When the processor executes the computer program, the steps in the above-mentioned various injection molding machine mold opening control method embodiments are implemented, such as Figure 1 Alternatively, when the processor executes the computer program, the functions of each module / unit in the above-mentioned device embodiments are realized, such as the pressure calculation module.

[0070] Exemplarily, the computer program may be divided into one or more modules / units, which are stored in the memory and executed by the processor to implement the present invention. The one or more modules / units may be a series of computer program instruction segments capable of implementing specific functions, which are used to describe the execution process of the computer program in the electronic device.

[0071] The electronic device may be a computing device such as a desktop computer, a notebook, a PDA, and a smart tablet. The electronic device may include, but is not limited to, a processor and a memory. Those skilled in the art will appreciate that the above components are merely examples of electronic devices and do not constitute a limitation on the electronic device. The electronic device may include more or fewer components than the above components, or a combination of certain components, or different components. For example, the electronic device may also include input and output devices, network access devices, buses, etc.

[0072] The processor may be a central processing unit (CPU), other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or any conventional processor, etc. The processor is the control center of the electronic device, and uses various interfaces and lines to connect various parts of the entire electronic device.

[0073] The memory can be used to store the computer program and / or module, and the processor realizes various functions of the electronic device by running or executing the computer program and / or module stored in the memory, and calling the data stored in the memory. The memory can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.), etc.; the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.), etc. In addition, the memory can include a high-speed random access memory, and can also include a non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0074] Wherein, if the module / unit integrated in the electronic device is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the present invention implements all or part of the processes in the above-mentioned embodiment method, and can also be completed by instructing the relevant hardware through a computer program. The computer program can be stored in a computer-readable storage medium, and the computer program can implement the steps of the above-mentioned various method embodiments when executed by the processor. Wherein, the computer program includes computer program code, and the computer program code can be in source code form, object code form, executable file or some intermediate form. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, U disk, mobile hard disk, disk, optical disk, computer memory, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software distribution medium. It should be noted that the content contained in the computer-readable medium can be appropriately increased or decreased according to the requirements of legislation and patent practice in the jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable media do not include electric carrier signals and telecommunication signals.

[0075] It should be noted that the device embodiments described above are merely schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, in the accompanying drawings of the device embodiments provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, which may be specifically implemented as one or more communication buses or signal lines. A person of ordinary skill in the art may understand and implement it without paying any creative effort.

[0076] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for controlling mold opening of an injection molding machine, characterized in that: include: Get the parameters of injection molding machine products; According to the parameters of the injection molding machine product, a molding time formula is constructed to obtain the injection molding time; According to the parameters of the injection molding machine product, an injection pressure formula is constructed to obtain the injection pressure; According to the injection molding time and the injection molding pressure, an injection driving machine control parameter is obtained; Automatic control information is obtained according to the injection molding drive machine control parameters.

2. The method for controlling mold opening of an injection molding machine according to claim 1, characterized in that: The step of obtaining the parameters of the injection molding machine product includes: The injection molding machine is measured by a measuring tool to obtain the side length of the injection molding machine; According to the side length of the injection molding machine, the area of ​​the injection molding machine is obtained; According to the area of ​​the injection molding machine, the volume of the injection molding machine is obtained; Among them, the side length dimensions of the injection molding machine include: the side length dimensions of the frame of the molding machine, the side length dimensions of the injection pressure chamber in the injection molding machine, the side length dimensions of the core of the injection mold and the side length dimensions of the mold frame of the injection mold; the area of ​​the injection molding machine includes: the cross-sectional area of ​​the core of the injection molding machine, the area of ​​the mold frame and the area of ​​the mold cavity; the volume of the injection molding machine includes: the volume of the product mold and the volume of the product.

3. The method for controlling mold opening of an injection molding machine according to claim 1, characterized in that: The method of constructing a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time includes: According to the parameters of the injection molding machine product, the mold loading time of the injection molding machine is obtained; According to the parameters of the injection molding machine product, the running time of the injection molding head from the opening point to the mold core direction is calculated to obtain the injection forward time; According to the parameters of the injection molding machine product, the running time of the injection molding head from the upper end of the mold core to the lower end of the mold core is calculated to obtain the injection molding process time; According to the parameters of the injection molding machine product, the running time of the injection molding head from the mold core to the fixed point is calculated to obtain the injection molding return time; The injection molding time is obtained according to the mold loading time of the injection molding machine, the injection forward time, the injection process time and the injection return time.

4. The method for controlling mold opening of an injection molding machine according to claim 3, characterized in that: The step of obtaining the mold loading time of the injection molding machine according to the parameters of the injection molding machine product comprises: According to the parameters of the injection molding machine product, the upper mold side length, the mold side length and the model side length are obtained; Obtaining a mold-on time of an injection molding machine according to the upper mold side length, the mold side length, and the model side length; Wherein, obtaining the mold-on time of the injection molding machine according to the upper mold side length, the mold side length and the model side length includes: obtaining the mold-on time of the injection molding machine by calculating through the following formula: In the formula, Indicates the mold loading time of the injection molding machine. is the side length of the upper die, is the side length of the mold, is the side length of the core, It is the running speed of the upper die process.

5. The method for controlling mold opening of an injection molding machine according to claim 1, characterized in that: The method of constructing an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection pressure includes: According to the parameters of the injection molding machine product, the injection molding rate of the injection molding machine molding component is obtained; According to the injection rate, an injection pressure is obtained; Wherein, according to the parameters of the injection molding machine product, the injection molding rate of the molding component of the injection molding machine is obtained, including: the injection molding rate is calculated by the following formula: In the formula, Indicates the injection rate, Indicates the flow rate of the injection molding machine, Represents the area of ​​the mold cavity; the flow rate of the injection molding machine is determined by the screw speed of the injection molding machine and the cross-sectional area of ​​the injection molding machine core, and is calculated by the following formula: ' In the formula, Indicates the cross-sectional area of ​​the injection molding machine core. 'Indicates the screw speed of the injection molding machine.

6. The method for controlling mold opening of an injection molding machine according to claim 5, characterized in that: The step of obtaining the injection pressure according to the injection rate comprises: According to the injection molding rate, the pressure of the injection molding head on the mold core is obtained; Obtaining injection pressure according to the pressure of the injection molding head on the mold core; Wherein, according to the injection molding rate, obtaining the pressure of the injection molding head on the mold core includes: calculating the pressure of the injection molding head on the mold core by the following formula: In the formula, Indicates the viscosity of the injection molded object, L indicates the sum of the side lengths of the core of the injection mold, Indicates the injection rate, Represents the area of ​​the mold cavity, Represents the inscribed circle radius of the core of the injection mold.

7. The method for controlling mold opening of an injection molding machine according to claim 1, characterized in that: The step of obtaining the injection molding drive machine control parameters according to the injection molding time and the injection pressure includes: Obtaining an injection molding cycle according to the injection molding time and the injection molding pressure; According to the injection molding cycle, controlling the injection molding rate to obtain a second injection molding rate; According to the injection molding cycle and in combination with the characteristics of the injection molding material, a cooling time is obtained; According to the cooling time, a control parameter of the mold opening stage is obtained; Obtaining injection drive machine control parameters according to the second injection rate and the mold opening stage control parameters; Wherein, the injection molding cycle is obtained according to the injection molding time and the injection molding pressure, and the injection molding cycle includes: filling stage time, pressure holding stage time, cooling stage time and mold opening stage time.

8. The method for controlling mold opening of an injection molding machine according to claim 1, characterized in that: The automatic control information is obtained according to the control parameters of the injection molding drive machine, including: According to the control parameters of the injection molding drive machine, information feedback is performed to obtain feedback information; Performing data processing according to the feedback information to obtain correction information; Obtaining automatic control information according to the correction information; The step of performing data processing according to the feedback information to obtain correction information includes: adding the feedback information to the injection molding drive machine control parameter to obtain correction information.

9. An injection molding machine mold opening control system, characterized in that: include: Parameter acquisition module, used to obtain the parameters of injection molding machine products; A time calculation module, used to construct a molding time formula according to the parameters of the injection molding machine product to obtain the injection molding time; A pressure calculation module, used to construct an injection pressure formula according to the parameters of the injection molding machine product to obtain the injection pressure; A parameter determination module, used for obtaining a control parameter of an injection molding drive machine according to the injection molding time and the injection molding pressure; The automatic control module is used to obtain automatic control information according to the control parameters of the injection molding drive machine.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium includes a stored computer program, wherein when the computer program is executed, the device where the computer-readable storage medium is located is controlled to execute the injection molding machine mold opening control method as described in any one of claims 1 to 8.

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