A high-speed injection molding control method and system based on dual-scale collaboration

Abstract

This invention relates to a high-speed injection molding control method and system based on dual-scale coordination, belonging to the technical field of injection molding machine control. The method includes: responding to a power-on signal by receiving preset process setting parameters and a start-up signal from the main controller of the injection molding machine; analyzing a motion control scheme based on the process setting parameters after receiving the process setting parameters and the start-up signal; controlling the injection servo valve based on the motion control scheme; receiving pressure sensing data from an injection pressure sensor and TTL pulse increment counts from a magnetic scale during the control of the injection servo valve based on the motion control scheme; calculating an adjustment control scheme based on the pressure sensing data and the TTL pulse increment count using a preset injection motion algorithm; and controlling and adjusting the injection servo valve based on the adjustment control scheme until the adjustment control scheme reaches a preset termination scheme. This invention has the effect of improving the yield rate of injection molded products.

Description

Technical Field

[0001] This invention relates to the field of injection molding machine control technology, and in particular to a high-speed injection molding control method and system based on dual-scale coordination. Background Technology

[0002] Injection molding machines are core equipment in the plastics processing field, covering almost all categories of plastic products from daily consumer goods to precision industrial components. Their processing range spans multiple key areas such as people's livelihood, industry, medical care, and automobiles, and they are key equipment supporting the large-scale production of plastic parts in modern manufacturing.

[0003] Currently, traditional injection molding machine position detection systems generally use magnetostrictive rulers for detection. The position acquisition principle is based on the magnetostrictive effect and time difference measurement technology to calculate the real-time position of the moving parts, and then make precise adjustments to the injection molding process of the injection molding machine based on this position information.

[0004] Regarding the aforementioned technologies, the inventors believe that traditional detection structures, due to limitations in the position acquisition principle, generally have a long position refresh time, and this refresh time increases with the length of the ruler. This results in excessive control deviation at the pressure holding switching point during high-speed injection, leading to a low product qualification rate. Summary of the Invention

[0005] To improve the product qualification rate, this invention provides a high-speed injection molding control method and system based on dual-scale collaboration.

[0006] In a first aspect, the present invention provides a high-speed injection molding control method based on dual-scale cooperation, employing the following technical solution: A high-speed injection molding control method based on dual-scale collaboration includes: Step S1: In response to the power-on signal, receive the preset process setting parameters and start action signal sent by the main controller of the plastic machine; Step S2: After receiving the process setting parameters and start action signal, analyze the motion control scheme based on the process setting parameters; Step S3: Control the injection servo valve based on the motion control scheme; Step S31: During the process of controlling the injection servo valve based on the motion control scheme, receive the pressure sensing data fed back by the injection pressure sensor and the TTL pulse increment count of the magnetic scale. Step S4: Calculate the adjustment control scheme based on the pressure sensor data and TTL pulse increment count using a preset injection motion algorithm; Step S5: Adjust the control of the injection servo valve based on the adjustment control scheme until the adjustment control scheme is the preset end scheme; This includes a method for calculating and adjusting the control scheme based on pressure sensing data and TTL pulse increment count using a preset injection motion algorithm. This method includes: Step S41: Calculate the real-time position parameters based on the TTL pulse increment count and pulse equivalent; Step S42: Compare the calculated real-time position parameters with the preset target position parameters in the motion control scheme to obtain the deviation result; Step S43: Combining the deviation results with the pressure sensing data, the adjustment command of the injection servo valve is calculated using the injection motion algorithm to obtain the adjustment control scheme.

[0007] By adopting the above technical solution, real-time position feedback during high-speed injection is achieved through TTL pulse increment counting of the magnetic grating ruler. The position deviation result reflects the difference between the actual movement and the target movement. Combined with pressure sensing data, the deviation during the injection process is dynamically corrected, ensuring the position accuracy and pressure stability during high-speed injection molding. This avoids the problems of excessive position jitter caused by motor interference of the analog ruler and excessively long position refresh time of the magnetostrictive ruler.

[0008] Optionally, it also includes a method for analyzing a motion control scheme based on the process setting parameters after receiving the process setting parameters and the start action signal, the method comprising: Step S21: Analyze the process setting parameters and obtain the motion control target; Step S22: Plan the initial control command sequence according to the motion control target to form a motion control scheme.

[0009] By adopting the above technical solution, the precise conversion from process requirements to specific control commands is achieved. The initial control command sequence can be specifically planned according to different injection molding process requirements (such as injection speed, holding pressure, injection volume, etc.) to ensure the initial accuracy and stability of the injection molding process.

[0010] Optional, also includes: Step S51: When the control scheme is adjusted to the preset end scheme, a preset action end signal is sent to the main controller of the plastic machine.

[0011] By adopting the above technical solution, a closed-loop information interaction between the motion control module and the main controller of the plastic injection machine is realized. The main controller of the plastic injection machine can know the completion status of the injection molding action in a timely manner, which facilitates the overall scheduling of subsequent processes and improves the continuity and efficiency of the automated production of the whole machine.

[0012] Optional, also includes: Step S6: When a preset interrupt motion signal is received from the main controller of the plastic injection machine during the process of controlling the injection servo valve based on the motion control scheme or the adjustment control scheme, the injection servo valve is controlled based on the termination scheme.

[0013] By adopting the above technical solution, it is ensured that when an interruption command is received, the injection action can be stopped in an orderly manner according to the preset termination plan, avoiding problems such as sudden cylinder stoppage and sudden pressure change caused by sudden interruption, reducing equipment impact and product scrap risk, and improving the safety and reliability of system operation.

[0014] Optionally, a method for verifying TTL pulse increment counts is also included, which includes: Step S70: In response to the power-on signal, receive the absolute position value of the analog ruler sent by the analog ruler and converted by AD; Step S71: After adjusting the control scheme to the preset end scheme, take the absolute value of the difference between the absolute position value of the analog ruler at this time and the real-time position parameter calculated based on the TTL pulse increment count and pulse equivalent as the position difference value. Step S72: When the position difference is greater than the preset error threshold, issue a preset alarm prompt.

[0015] By adopting the above technical solution, the difference between the absolute position value of the analog ruler and the position information of the magnetic ruler can be compared in a timely manner to detect the increasing cumulative position error of the magnetic ruler caused by pulse loss, and an alarm can be triggered to remind staff to check and calibrate.

[0016] Secondly, this application provides a high-speed injection molding control system based on dual-scale collaboration, employing the following technical solution: A high-speed injection molding control system based on dual-scale collaboration is applied to a high-speed injection molding control method based on dual-scale collaboration as described above. It includes an injection cylinder that drives the operation of the injection molding machine, an injection servo valve for controlling the injection cylinder, an injection pressure sensor for detecting injection pressure, and a main controller for sending control signals. It also includes a magnetic scale for measuring the real-time dynamic position of the injection cylinder and outputting pulse signals, a high-speed counting module for receiving pulse signals and outputting position signals, and a motion control module for receiving position signals and control signals and controlling the operation of the injection servo valve. The magnetic scale is mounted on the injection cylinder. The high-speed counting module is electrically connected to the magnetic scale. The motion control module is electrically connected to the high-speed counting module, the injection pressure sensor, and the main controller of the plastic machine.

[0017] By adopting the above technical solution, the pulse signal output by the magnetic scale is converted into a position signal by the high-speed counting module. The motion control module combines the position signal with the control signal of the main controller of the molding machine, and at the same time refers to the pressure data detected by the injection pressure sensor to precisely control the injection servo valve, thereby realizing the dynamic adjustment of parameters such as injection speed and pressure, improving the stability of the injection molding process and the product molding quality.

[0018] Optionally, it also includes an analog ruler mounted on the injection cylinder and outputting an absolute position signal to assist in the calibration of the magnetic scale; The analog ruler is communicatively connected to the motion control module to output the absolute position signal to the motion control module.

[0019] By adopting the above technical solution, the absolute position value of the analog ruler is read before the magnetic ruler starts working, and the analog ruler value is written into the magnetic ruler counter as the initial position. During the fully automatic cycle of the plastic machine, the positions of the analog ruler and the magnetic ruler are compared during the time interval after each mold opening and product removal. If the difference is greater than a certain threshold, an alarm is issued to assist in the calibration of the magnetic ruler.

[0020] Optionally, the motion control module includes a communication module for communicating with the main controller of the plastic machine, an analysis module connected to the communication module to receive and analyze control commands, and a calculation module connected to the analysis module to perform signal processing and real-time calculation. The computing module is electrically connected to the high-speed counting module, the analog ruler, and the injection pressure sensor to receive signals. The computing module is also electrically connected to the injection servo valve to output control commands to the injection servo valve.

[0021] By adopting the above technical solution, the communication module receives the control commands from the main controller of the plastic machine and transmits the control commands to the analysis module for parsing and judgment. The analysis module then transmits the control commands to the calculation module through inter-core communication. After the calculation module performs calculations on the various received signals, it fine-tunes the control commands and outputs them to the injection servo valve to control the injection cylinder.

[0022] Optionally, it also includes an AD conversion module for converting analog signals from the analog ruler and injection pressure sensor into digital signals and sending them to the motion control module, and a DA conversion module for converting digital signals from the motion control module into analog signals and sending them to the injection servo valve.

[0023] By adopting the above technical solution, accurate conversion from analog to digital signals and adaptation conversion from digital control signals to analog drive signals are achieved, enabling the motion control module to directly receive and process digital position and pressure signals and ensuring that the injection servo valve can accurately respond to control commands.

[0024] In summary, the present invention has at least one of the following beneficial technical effects: The analysis module and the calculation module are used to perform tasks separately. The analysis module performs analysis and logical judgment, and the calculation module performs calculations and adjusts control instructions periodically to ensure precise control of the high-speed injection molding process. The magnetic scale is calibrated by using a simulated scale, and the positions of the simulated scale and the magnetic scale are compared to prevent the magnetic scale position error from accumulating too much, so as to ensure the position detection accuracy of high-speed injection. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a high-speed injection molding control system based on dual-scale collaboration in an embodiment of this application; Figure 2 This is a flowchart of a high-speed injection molding control method based on dual-scale collaboration in an embodiment of this application.

[0026] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Injection cylinder; 2. Injection servo valve; 3. Injection pressure sensor; 4. Plastic machine main controller; 5. Magnetic scale; 6. Analog scale; 7. High-speed counting module; 8. Motion control module; 81. Communication module; 82. Analysis module; 83. Calculation module; 9. AD conversion module; 10. DA conversion module. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0028] This invention discloses a high-speed injection molding control system based on dual-scale collaboration.

[0029] Reference Figure 1 A high-speed injection molding control system based on dual-scale collaboration includes an injection cylinder 1, an injection servo valve 2, an injection pressure sensor 3, a main controller for the molding machine 4, a magnetic scale 5, an analog scale 6, a high-speed counting module 7, a motion control module 8, an AD conversion module 9, and a DA conversion module 10.

[0030] Reference Figure 1 An injection cylinder 1 is integrated into the injection molding machine to drive the machine and complete the injection action. An injection servo valve 2 is integrated into the injection molding machine to regulate the oil flow in the injection cylinder 1. An injection pressure sensor 3 is installed in the injection oil circuit of the injection molding machine to detect the injection pressure during the injection process. A magnetic scale 5 is fixedly installed on the injection cylinder 1 and outputs a TTL incremental pulse signal to detect the position of the injection cylinder 1. An analog scale 6 is fixedly installed on the injection cylinder 1 to assist the magnetic scale 5 in static position calibration. A high-speed counting module 7 is electrically connected to the magnetic scale 5 to directly read the TTL incremental pulse signal of the magnetic scale 5.

[0031] Reference Figure 1 The motion control module 8 is electrically connected to the high-speed counting module 7 to receive signals and perform real-time calculations. The motion control module 8 is also electrically connected to the injection servo valve 2 to transmit control commands to it. The AD conversion module 9 is electrically connected to the injection pressure sensor 3, the analog ruler 6, and the motion control module 8 to convert the analog signals from the analog ruler 6 and the injection pressure sensor 3 into digital signals and transmit them to the motion control module 8. The DA conversion module 10 is electrically connected to the motion control module 8 and the injection servo valve 2 to convert the digital control signals from the motion control module 8 into analog signals and transmit them to the injection servo valve 2.

[0032] Reference Figure 1 When the injection molding machine is turned on, the analog ruler 6 first outputs an absolute position value in an environment without motor interference. This value is converted into a digital signal by the AD conversion module 9 and then transmitted to the motion control module 8. The motion control module 8 writes this value into the magnetic ruler 5 counter as the initial position reference. After calibration, the magnetic ruler 5 switches to incremental counting mode. During the fully automatic cycle of the injection molding machine, during the time interval between each mold opening and product removal, the motion control module 8 automatically compares the position data of the analog ruler 6 and the magnetic ruler 5. If the difference is ≥1mm (preset alarm threshold), the motion control module 8 sends an alarm signal to the main controller 4 of the injection molding machine to prompt troubleshooting the TTL pulse loss problem and prevent the cumulative error of position detection from expanding.

[0033] Reference Figure 1 The motion control module 8 uses a multi-core MCU as its main chip and an EtherCAT protocol-specific chip ET1100 for communication. The motion control module 8 includes a communication module 81, an analysis module 82, and a calculation module 83. The communication module 81, equipped with the EtherCAT protocol-specific chip ET1100, is responsible for link-layer data interaction with the main controller 4 of the molding machine, maintaining a stable communication cycle of 1ms. The analysis module 82 can parse the process setting parameters (injection, pressure transfer, pressure holding, and injection retraction) sent by the main controller 4 through service data (SDO), with a task cycle of 1ms, as well as control word commands sent through process data (PDO), and transmits the parsed commands to the calculation module 83 via inter-core communication. The calculation module 83 can simultaneously receive position data from the high-speed counting module 7, pressure data transmitted by the AD conversion module 9, and position data from the analog ruler 6, completing real-time closed-loop calculations of the position loop, speed loop, and pressure loop, and can complete motion control calculations within a 125μs cycle. The calculation results are output to the injection servo valve 2 via the DA conversion module 10, achieving refined control under high-speed injection.

[0034] Reference Figure 1When the main controller 4 of the molding machine triggers a high-speed injection action, it first sends process parameters such as injection speed and injection stroke to the motion control module 8 via SDO, and then triggers the injection command via PDO control word. After parsing the command, the analysis module 82 informs the calculation module 83 to start the control process via inter-core communication. The calculation module 83 dynamically adjusts the control signal of the injection servo valve 2 based on the real-time position data of the magnetic scale 5 and the pressure data of the injection pressure sensor 3, with a period of 125μs. After being converted into an analog signal by the DA conversion module 10, the signal drives the injection servo valve 2, causing the injection cylinder 1 to advance at the set speed. When the magnetic scale 5 detects that the piston rod has reached the holding pressure position, the calculation module 83 immediately adjusts the control parameters and switches the injection servo valve 2 to the holding pressure mode, with a holding pressure switching error of ±0.05mm. After confirming that the action is completed, the calculation module 83 informs the analysis module 82 via inter-core communication, and the analysis module 82 then feeds back to the main controller 4 of the molding machine via PDO status word, completing one injection cycle. If an emergency interruption is required during the process, the main controller 4 of the plastic machine can also interrupt the operation of the motion control module 8 through the control word in the PDO to ensure the safe operation of the system.

[0035] Based on the same inventive concept, embodiments of the present invention provide a high-speed injection molding control method based on dual-scale collaboration.

[0036] Reference Figure 2 A high-speed injection molding control method based on dual-scale collaboration includes: Step S1: In response to the power-on signal, receive the preset process setting parameters and start action signal sent by the main controller 4 of the plastic machine.

[0037] The power-on signal refers to the system ready signal generated after the molding machine is powered on and started. The response method is that the communication module 81 of the motion control module 8 enters the working state after detecting the power-on signal. Process setting parameters refer to the injection speed, pressure, holding time, and other process parameters preset according to the requirements of the injection molded product. These parameters are input by the operator through the molding machine's human-machine interface and stored in the molding machine's main controller 4. The main controller 4 then sends these parameters to the motion control module 8 via the EtherCAT bus service data (SDO). The start action signal is the instruction signal issued by the main controller 4 to start the injection process. The receiving method is that the communication module 81 of the motion control module 8 receives this digital instruction signal from the main controller 4 via the EtherCAT bus, which is sent in the form of a control word in the process data (PDO). The communication cycle is 1ms, consistent with the EtherCAT bus.

[0038] Step S2: After receiving the process setting parameters and start action signal, analyze the motion control scheme based on the process setting parameters.

[0039] The motion control scheme is a set of specific control commands derived from the breakdown of process setting parameters, clarifying the action sequence, control logic, and target parameters of actuators such as the injection servo valve 2. The motion control module 8 analyzes the process setting parameters, extracts information such as injection speed, pressure parameters, and target position, and finally integrates them to form a motion control scheme that can directly drive the actuators.

[0040] Step S3: Control the injection servo valve 2 based on the motion control scheme.

[0041] The control method is that the motion control module 8 converts the motion control scheme into a digital control signal, which is then converted into an analog current signal by the DA conversion module 10 and output to the injection servo valve 2. The injection servo valve 2 is adjusted to control the movement of the hydraulic cylinder.

[0042] Step S31: During the process of controlling the injection servo valve 2 based on the motion control scheme, the pressure sensing data fed back by the injection pressure sensor 3 and the TTL pulse increment count of the magnetic grating ruler 5 are received.

[0043] Pressure sensing data refers to the real-time pressure value inside injection cylinder 1, which is detected by injection pressure sensor 3 and converted by AD conversion module 9 before being transmitted to calculation module 83. TTL pulse increment counting refers to the cumulative pulse value reflecting the displacement change of the cylinder, which is output in real time by magnetic grating ruler 5 and received by high-speed counting module 7 and transmitted to calculation module 83. The receiving period and the position update period of high-speed counting module 7 are both ≤20μs, ensuring the real-time position data requirements of 125μs-level closed-loop calculation.

[0044] Step S4: Calculate the adjustment control scheme based on the pressure sensor data and TTL pulse increment count using a preset injection motion algorithm.

[0045] The injection motion algorithm refers to an algorithm that calculates position parameters using information such as pulse increment counting and pulse equivalent, while the adjustment control scheme refers to a scheme derived from pressure sensor data and the calculated position parameters.

[0046] Step S5: Adjust the control of the injection servo valve 2 based on the adjustment control scheme until the adjustment control scheme is the preset end scheme.

[0047] The termination scheme refers to the preset termination control state, such as the completion of the injection stroke and the end of the pressure holding. The determination method is that when the calculation module 83 detects that the magnetic grid ruler 5 count has reached the preset stroke end point and the pressure holding time meets the set requirements, it is determined to be the termination scheme.

[0048] The method for calculating and adjusting the control scheme based on pressure sensor data and TTL pulse increment count using a preset injection motion algorithm includes: Step S41: Calculate the real-time position parameters based on the TTL pulse increment count and pulse equivalent; Real-time position parameters refer to the parameters of the real-time position of the injection cylinder 1 calculated by pulse increment counting and pulse equivalent.

[0049] Step S42: Compare the calculated real-time position parameters with the preset target position parameters in the motion control scheme to obtain the deviation result; The deviation result refers to the absolute value of the difference between the real-time position parameters and the target position parameters.

[0050] Step S43: Combining the deviation results with the pressure sensing data, the adjustment command of the injection servo valve 2 is calculated using the injection motion algorithm to obtain the adjustment control scheme.

[0051] An adjustment command is an instruction to adjust the motion control scheme based on the deviation results and pressure sensor data. An adjustment control scheme is a scheme to adjust the motion control scheme through adjustment commands.

[0052] This also includes: Step S21: Analyze the process setting parameters and obtain the motion control target.

[0053] The motion control target refers to the target parameters that convert the injection molding process parameters into the precise motion trajectory that the injection cylinder 1 needs to complete, including target displacement parameters, target speed parameters, and target pressure parameters. The motion control target is obtained by the motion control module 8 through logical transformation of the parsed process parameters.

[0054] Step S22: Plan the initial control command sequence according to the motion control target to form a motion control scheme.

[0055] The initial control command sequence refers to a set of digital control commands generated to directly drive the injection servo valve 2 in order to achieve the motion control objective. This includes displacement control command segments, speed control command segments, and pressure control command segments. The initial control command sequence is generated by the motion control module 8 based on a preset motion planning algorithm. For example, a trapezoidal velocity curve algorithm is used to form an ordered command sequence for the objective of "moving from the starting point to the target position at a specific speed".

[0056] This also includes: Step S51: When the control scheme is adjusted to the end scheme, a preset action end signal is sent to the main controller 4 of the plastic machine.

[0057] The action end signal is a status signal that indicates the completion of the injection molding process. It is transmitted via the EtherCAT bus by the communication module 81 of the motion control module 8, using a PDO status word to the main controller 4 of the injection molding machine. Sending this signal when the control scheme is adjusted to the preset end scheme allows the main controller 4 to promptly trigger subsequent processes, achieving automated connection of the entire injection molding process and reducing process changeover waiting time.

[0058] This also includes: Step S6: When a preset interrupt motion signal is received from the main controller 4 of the plastic injection machine during the process of controlling the injection servo valve 2 based on the motion control scheme or the adjustment control scheme, the injection servo valve is controlled based on the termination scheme.

[0059] The interruption motion signal refers to the control signal issued by the main controller 4 of the plastic injection machine during the injection process to pause or terminate the current injection action. The interruption motion signal is transmitted to the motion control module 8 through the main controller 4, and then the motion control module 8 controls the injection servo valve 2 to gradually release the cylinder pressure to a safe value and then stop the motion to avoid mold damage or molten material overflow caused by sudden stop impact.

[0060] This technical solution can avoid mold damage or molten material overflow caused by sudden stop impact during interruption, ensuring the safety of equipment and products, while providing a stable initial state for subsequent production resumption.

[0061] This also includes a method for verifying TTL pulse increment counts, which includes: Step S70: In response to the power-on signal, receive the absolute position value of the analog ruler 6 after it has been sent and converted by AD.

[0062] The absolute position value refers to the absolute coordinate value measured by the analog ruler 6, which directly represents the actual physical position of the injection cylinder 1. This value is received after the power-on signal is triggered, ensuring system initialization is complete. The absolute position value signal of the analog ruler 6 is converted into a digital signal by the AD conversion module 9 and then read by the arithmetic module 83.

[0063] Step S71: After adjusting the control scheme to the preset end scheme, take the absolute value of the difference between the absolute position value of the analog ruler at this time and the real-time position parameter calculated based on the TTL pulse increment count and pulse equivalent as the position difference value.

[0064] The position difference refers to the absolute value of the difference between the absolute position value detected by the analog ruler 6 and the real-time position parameter calculated by the magnetic ruler 5 after the injection molding process is completed. It is used to determine whether the position measurement accuracy of the magnetic ruler 5 is within the allowable range. The position difference is calculated by the motion control module 8 first by the difference between the two position values, and then obtained by the absolute value calculation instruction.

[0065] Step S72: When the position difference is greater than the preset error threshold, issue a preset alarm prompt.

[0066] The error threshold refers to the maximum allowable position deviation, which is set to 1mm here. The alarm signal is a warning signal used to remind staff that the equipment has an abnormal position measurement. For example, in this case, the alarm indicator light will emit a red light. When the position difference is greater than 1mm, the alarm indicator light will emit a red light to inform the staff of the warning signal.

[0067] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A high-speed injection molding control method based on dual-scale collaboration, characterized in that, include: Step S1: In response to the power-on signal, receive the preset process setting parameters and start action signal sent by the main controller (4) of the plastic machine; Step S2: After receiving the process setting parameters and start action signal, analyze the motion control scheme based on the process setting parameters; Step S3: Control the injection servo valve (2) based on the motion control scheme; Step S31: During the process of controlling the injection servo valve (2) based on the motion control scheme, receive the pressure sensing data fed back by the injection pressure sensor (3) and the TTL pulse increment count of the magnetic grating ruler (5); Step S4: Calculate the adjustment control scheme based on the pressure sensor data and TTL pulse increment count using a preset injection motion algorithm; Step S5: Adjust the control of the injection servo valve (2) based on the adjustment control scheme until the adjustment control scheme is the preset end scheme; The method for calculating and adjusting the control scheme based on pressure sensor data and TTL pulse increment count using a preset injection motion algorithm includes: Step S41: Calculate the real-time position parameters based on the TTL pulse increment count and pulse equivalent; Step S42: Compare the calculated real-time position parameters with the preset target position parameters in the motion control scheme to obtain the deviation result; Step S43: Combining the deviation results with the pressure sensing data, the adjustment command of the injection servo valve (2) is calculated by the injection motion algorithm to obtain the adjustment control scheme.

2. A high-speed injection molding control method based on dual-scale collaboration according to claim 1, characterized in that, Methods for analyzing motion control schemes based on process setting parameters after receiving process setting parameters and start action signals include: Step S21: Analyze the process setting parameters and obtain the motion control target; Step S22: Plan the initial control command sequence according to the motion control target to form a motion control scheme.

3. A high-speed injection molding control method based on dual-scale collaboration according to claim 1, characterized in that, Also includes: Step S51: When the control scheme is adjusted to the preset end scheme, a preset action end signal is sent to the main controller (4) of the plastic machine.

4. A high-speed injection molding control method based on dual-scale collaboration according to claim 1, characterized in that, Also includes: Step S6: When the injection servo valve (2) is controlled based on the motion control scheme or the injection servo valve (2) is controlled based on the adjustment control scheme, and a preset interrupt motion signal is received from the main controller (4) of the plastic machine, the injection servo valve (2) is controlled based on the termination scheme.

5. A high-speed injection molding control method based on dual-scale collaboration according to claim 1, characterized in that, It also includes a method for verifying TTL pulse increment counts, which includes: Step S70: In response to the power-on signal, receive the absolute position value of the analog ruler (6) after it has been sent and converted by AD; Step S71: After adjusting the control scheme to the preset end scheme, take the absolute value of the difference between the absolute position value of the analog ruler at this time and the real-time position parameter calculated based on the TTL pulse increment count and pulse equivalent as the position difference value. Step S72: When the position difference is greater than the preset error threshold, issue a preset alarm prompt.

6. A high-speed injection molding control system based on dual-scale collaboration, applied to a high-speed injection molding control method based on dual-scale collaboration as described in any one of claims 1 to 5, comprising an injection cylinder (1) for driving the operation of an injection molding machine, an injection servo valve (2) for controlling the injection cylinder (1), an injection pressure sensor (3) for detecting injection pressure, and a main controller (4) for sending control signals, characterized in that: It also includes a magnetic scale (5) for measuring the real-time dynamic position of the injection cylinder (1) and outputting pulse signals, a high-speed counting module (7) for receiving pulse signals and outputting position signals, and a motion control module (8) for receiving position signals and control signals and controlling the operation of the injection servo valve (2). The magnetic scale (5) is mounted on the injection cylinder (1). The high-speed counting module (7) is electrically connected to the magnetic scale (5). The motion control module (8) is electrically connected to the high-speed counting module (7), the injection pressure sensor (3), and the main controller of the plastic machine (4).

7. A high-speed injection molding control system based on dual-scale collaboration according to claim 6, characterized in that: It also includes a simulated ruler (6) that is set on the injection cylinder (1) and outputs an absolute position signal to assist in the calibration of the magnetic scale (5). The analog ruler (6) is communicatively connected to the motion control module (8) to output the absolute position signal to the motion control module (8).

8. A high-speed injection molding control system based on dual-scale collaboration according to claim 6, characterized in that: The motion control module (8) includes a communication module (81) for communicating with the main controller (4) of the plastic machine, an analysis module (82) for communicating with the communication module (81) to receive and analyze control commands, and a calculation module (83) for communicating with the analysis module (82) to perform signal processing and real-time calculation. The computing module (83) is electrically connected to the high-speed counting module (7), the analog ruler (6) and the injection pressure sensor (3) to receive signals. The computing module (83) is electrically connected to the injection servo valve (2) to output control commands to the injection servo valve (2).

9. A high-speed injection molding control system based on dual-scale collaboration according to claim 6, characterized in that: It also includes an AD conversion module (9) for converting the analog signals of the analog ruler (6) and the injection pressure sensor (3) into digital signals and sending them to the motion control module (8), and a DA conversion module (10) for converting the digital signals of the motion control module (8) into analog signals and sending them to the injection servo valve (2).

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