Method, system, device and medium for adjusting air pressure of balancer of multi-station press

Abstract

The embodiment of the application provides a kind of multi-station press balancer air pressure's adjusting method, system, equipment and medium, belong to multi-station press field.It includes: the mass parameter of the mould on each station of multi-station press, center of gravity offset, the structural parameter of balancer, the distance from balancer to slider center, no-load air pressure and safety air pressure parameter;According to the above parameters, the required off-load compensation force of balancer is calculated, and the target air pressure value required by balancer is calculated in combination with no-load air pressure;And based on target air pressure value and safety air pressure parameter, determine the upper and lower limit of air pressure;The actual air pressure value of left and right balancer is collected in real time by pressure sensor;And compare actual air pressure value with air pressure upper and lower limit, based on operating state and comparison result control air intake or exhaust.Can realize the automatic compensation of multi-station press off-load, avoid the eccentric force of slider caused by the weight difference of mould, improve the running safety, stability and die changing efficiency of press.

Description

Technical Field

[0001] This invention relates to the field of multi-station press technology, and more specifically to a method, system, equipment, and medium for adjusting the air pressure of a balancer in a multi-station press. Background Technology

[0002] Multi-station presses often have multiple molds installed during production, and the molds have different weights and center of gravity offsets, which causes the slider to generate an off-center load torque. This off-center load will cause uneven force on the guide rail, affecting the accuracy and safety of the equipment.

[0003] Currently, the industry commonly uses balancer systems to offset some off-center loads. However, the balancer's air pressure setting relies entirely on the operator's experience for manual adjustment. Operators must estimate the weight and center of gravity based on the mold drawings, and then repeatedly adjust the inflation and deflation via manual valves. This traditional method has significant drawbacks: First, the adjustment efficiency is extremely low; each mold change consumes a significant amount of production time, severely impacting equipment utilization. Second, the adjustment accuracy is poor; manual estimation and operation cannot achieve precise torque balance, making it difficult to completely eliminate off-center loads, which will damage equipment accuracy and mold lifespan in the long run. Finally, there is serious resource waste; inaccurate air pressure settings lead to excessive consumption of compressed air.

[0004] Therefore, there is an urgent need for an intelligent solution that can automatically, accurately, and efficiently adjust the air pressure of the balancer in a multi-station press. Summary of the Invention

[0005] The purpose of this invention is to provide a method, system, equipment, and medium for adjusting the air pressure of a balancer in a multi-station press, thereby achieving automatic compensation for off-center loads in the multi-station press, avoiding eccentric force on the slider caused by differences in mold weight, and improving the press's operational safety, stability, and mold changing efficiency.

[0006] To achieve the above objectives, embodiments of the present invention provide a method for adjusting the air pressure of a balancer in a multi-station press, comprising:

[0007] Collect the mass parameters and center of gravity offset of the mold at each station of the multi-station press, as well as the structural parameters of the left and right balancers, the distance from the left and right balancers to the center of the slider, and the no-load air pressure and safe air pressure parameters.

[0008] Based on the mass parameters, center of gravity offset, structural parameters of the left and right balancers, and distances from the left and right balancers to the center of the slider, calculate the required off-center load compensation force for the left and right balancers, and combine it with the no-load wind pressure to calculate the target wind pressure value required for the left and right balancers; and determine the upper and lower limits of wind pressure based on the target wind pressure value and the safe wind pressure parameter.

[0009] The actual wind pressure values ​​of the left and right balancers are collected in real time by pressure sensors; and the actual wind pressure values ​​of the left and right balancers are compared with the upper and lower limits of wind pressure to obtain the comparison results.

[0010] Determine the current operating status of the multi-station press, and control the intake or exhaust of the left and right balancers based on the operating status and comparison results.

[0011] Optionally, the required eccentric load compensation force for the left and right balancers can be calculated using the following formula:

[0012]

[0013]

[0014] In the formula, , These are the off-center load compensation forces required for the left and right balancers, respectively. For the total eccentric load moment, Let be the quality parameters of the i-th mold. It is the acceleration due to gravity. , These are the distances from the left and right balancers to the center of the slider, respectively. The center distance, This represents the total number of molds.

[0015] Optionally, the target wind pressure values ​​required for the left and right balancers can be calculated using the following formula:

[0016]

[0017]

[0018] In the formula, , These are the target wind pressure values ​​required for the left and right balancers, respectively. , These represent the number of left and right balancers, respectively. , These are the effective areas of the left and right balancers, respectively. , These are the no-load air pressures of the left and right balancers, respectively.

[0019] Optionally, the upper and lower limits of wind pressure include: a static upper limit and a static lower limit of wind pressure in static mode, and a dynamic upper limit and a dynamic lower limit of wind pressure in dynamic mode.

[0020] Optionally, determining the current operating state of the multi-station press and controlling the intake or exhaust of the left and right balancers based on the operating state and comparison results includes:

[0021] In static mode, the actual air pressure is compared with the static lower limit and the static upper limit of air pressure. If the actual air pressure is less than the static lower limit of air pressure, the air intake valve is opened to allow air to enter.

[0022] If the actual wind pressure is greater than or equal to the lower static limit of wind pressure and less than or equal to the upper static limit of wind pressure, then close all valves to maintain the current pressure;

[0023] In dynamic mode, the actual wind pressure is compared with the dynamic lower limit and the dynamic upper limit of wind pressure. If the actual wind pressure is less than the dynamic lower limit of wind pressure, the air intake valve is opened to allow air to enter.

[0024] If the actual air pressure is greater than the dynamic upper limit of air pressure, the press slide position will perform an exhaust operation.

[0025] Optionally, the exhaust operation in the dynamic mode specifically includes:

[0026] When the slider is in the top dead center region and is still moving, if the actual wind pressure is greater than the static upper limit of wind pressure, exhaust will be started.

[0027] If the actual air pressure is greater than or equal to the dynamic upper limit of air pressure when the slider is not in the top dead center region, exhaust will be started.

[0028] Optionally, the method for adjusting the air pressure of the multi-station press balancer further includes: a safety-first exhaust step.

[0029] Regardless of whether the press is in static or dynamic mode, as long as the actual air pressure is greater than the preset maximum safe air pressure value, forced venting will be executed immediately until the pressure drops back to the safe range.

[0030] Secondly, the present invention also provides a system for regulating the air pressure of a balancer in a multi-station press, comprising:

[0031] The data acquisition module is used to collect the mass parameters and center of gravity offset of the molds at each station of the multi-station press, as well as the structural parameters of the left and right balancers, the distance from the left and right balancers to the center of the slider, and the no-load air pressure and safe air pressure parameters.

[0032] The wind pressure calculation module is used to calculate the target wind pressure values ​​required by the left and right balancers based on the mass parameters, center of gravity offset, structural parameters of the left and right balancers, distances from the left and right balancers to the center of the slider, and no-load wind pressure; and to determine the upper and lower limits of wind pressure based on the target wind pressure values ​​and the safe wind pressure parameters.

[0033] The wind pressure comparison module is used to collect the actual wind pressure values ​​of the left and right balancers in real time through pressure sensors; and compare the actual wind pressure values ​​of the left and right balancers with the upper and lower limits of wind pressure to obtain the comparison result.

[0034] The air pressure regulation module is used to determine the current operating status of the multi-station press and control the air intake or exhaust of the left and right balancers based on the operating status and comparison results.

[0035] Thirdly, the present invention also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the above-described method for adjusting the air pressure of the multi-station press balancer.

[0036] Fourthly, the present invention also provides a storage medium storing a computer program thereon, wherein the computer program, when executed by a processor, implements the steps of the above-described method for adjusting the air pressure of the multi-station press balancer.

[0037] The above technical solution enables automatic compensation for off-center load on multi-station presses, avoiding eccentric force on the slide caused by differences in mold weight, and improving the safety, stability and mold changing efficiency of press operation.

[0038] Other features and advantages of the embodiments of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0039] The accompanying drawings are provided to further illustrate embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0040] Figure 1 This is a flowchart of a method for adjusting the air pressure of a multi-station press balancer according to an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of a method for adjusting the air pressure of a multi-station press balancer provided in an embodiment of the present invention;

[0042] Figure 3 This is a detailed implementation flowchart of a method for adjusting the air pressure of a multi-station press balancer provided in an embodiment of the present invention;

[0043] Figure 4 This is a schematic diagram of the structure of a multi-station press balancer air pressure adjustment system provided in an embodiment of the present invention;

[0044] Figure 5 This is a schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present invention. Detailed Implementation

[0045] Various embodiments of this disclosure will be described more fully in the following detailed description. This disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of this disclosure to the specific embodiments disclosed herein, but rather this disclosure should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of this disclosure.

[0046] In the following, the terms “comprising” or “may include”, which may be used in various embodiments of this disclosure, indicate the presence of the disclosed functions or operations and do not limit the addition of one or more functions or operations. Furthermore, as used in various embodiments of this disclosure, the terms “comprising,” “having,” and their cognates are intended only to indicate a specific feature, number, step, operation, or combination of the foregoing and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, or combinations of the foregoing, or the possibility of adding one or more features, numbers, steps, operations, or combinations of the foregoing.

[0047] In various embodiments of this disclosure, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0048] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0049] See Figure 1 The diagram shows a flowchart of a method for adjusting the air pressure of a multi-station press balancer in a specific embodiment, including the following execution steps:

[0050] Step 100: Collect the mass parameters and center of gravity offset of the mold at each station of the multi-station press, as well as the structural parameters of the left and right balancers, the distance from the left and right balancers to the center of the slider, and the no-load air pressure and safe air pressure parameters.

[0051] Specifically, the offset of the center of gravity relative to the center of the slider is xi, where xi>0 indicates that the mold is on the right and xi<0 indicates that the mold is on the left.

[0052] Step 101: Based on the mass parameters, center of gravity offset, structural parameters of the left and right balancers, and distances from the left and right balancers to the center of the slider, calculate the required off-center load compensation force for the left and right balancers, and calculate the target wind pressure value required for the left and right balancers in conjunction with the no-load wind pressure; and determine the upper and lower limits of wind pressure based on the target wind pressure value and the safe wind pressure parameter.

[0053] Specifically, the required eccentric load compensation force for the left and right balancers can be calculated using the following formula:

[0054]

[0055]

[0056] In the formula, , These are the off-center load compensation forces required for the left and right balancers, respectively. For the total eccentric load moment, Let be the quality parameters of the i-th mold. It is the acceleration due to gravity. , These are the distances from the left and right balancers to the center of the slider, respectively. The center distance, This represents the total number of molds.

[0057] in, ；

[0058]

[0059] Furthermore, the target wind pressure values ​​required for the left and right balancers can be calculated using the following formula:

[0060]

[0061]

[0062] In the formula, , These are the target wind pressure values ​​required for the left and right balancers, respectively. , These represent the number of left and right balancers, respectively. , These are the effective areas of the left and right balancers, respectively. , These are the no-load air pressures of the left and right balancers, respectively.

[0063] Step 102: Collect the actual wind pressure values ​​of the left and right balancers in real time using pressure sensors; and compare the actual wind pressure values ​​of the left and right balancers with the upper and lower limits of the wind pressure to obtain the comparison results.

[0064] Specifically, the wind pressure control range is set as follows:

[0065]

[0066]

[0067] Among them, the maximum wind pressure Minimum wind pressure Allowable error .

[0068] And satisfy:

[0069]

[0070]

[0071] Step 103: Determine the current operating status of the multi-station press, and control the intake or exhaust of the left and right balancers based on the operating status and comparison results.

[0072] In one specific embodiment, the upper and lower limits of wind pressure include: a static upper limit and a static lower limit of wind pressure in static mode, and a dynamic upper limit and a dynamic lower limit of wind pressure in dynamic mode.

[0073] Specifically, when executing step 103, it is performed in two ways: static mode and dynamic mode.

[0074] Case 1: In static mode:

[0075] The actual air pressure is compared with the static lower limit and the static upper limit of air pressure. If the actual air pressure is less than the static lower limit, the air intake valve is opened to allow air to enter. If the actual air pressure is greater than or equal to the static lower limit and less than or equal to the static upper limit, all valves are closed to maintain the current pressure.

[0076] For example, the static adjustment mode, executed when the press stops and the slide is at top dead center, satisfies:

[0077]

[0078] in:

[0079]

[0080]

[0081] In the formula, This is the lower limit of static wind pressure. This is the static upper limit of wind pressure. Target wind pressure.

[0082] Scenario 2: In dynamic mode:

[0083] The actual air pressure is compared with the dynamic lower limit and dynamic upper limit of air pressure. If the actual air pressure is less than the dynamic lower limit, the air intake valve is opened to allow air intake; if the actual air pressure is greater than the dynamic upper limit, the press slide position performs the exhaust operation.

[0084] For example, in dynamic adjustment mode, the following is executed when the press is running:

[0085]

[0086]

[0087]

[0088] In the formula, This is the dynamic lower limit of wind pressure. This is the dynamic upper limit of wind pressure. , , , These are the weighting coefficients.

[0089] In one specific embodiment, the exhaust operation in the dynamic mode specifically includes: when the slider is located in the top dead center region and is still moving, if the actual wind pressure is greater than the static upper limit of wind pressure, then exhaust is started; when the slider is not located in the top dead center region, if the actual wind pressure is greater than or equal to the dynamic upper limit of wind pressure, then exhaust is started.

[0090] For example, exhaust control meets one of the following conditions:

[0091] Near the top dead point:

[0092] Non-top dead point:

[0093] Any state: .

[0094] In this embodiment, automatic compensation for off-center load on a multi-station press can be achieved, avoiding eccentric force on the slider caused by differences in mold weight, thereby improving the press's operational safety, stability, and mold changing efficiency.

[0095] In one embodiment, Figure 2 This is a schematic diagram of a method for adjusting the air pressure of a multi-station press balancer according to an embodiment of the present invention. This embodiment is further optimized and expanded based on the above embodiments.

[0096] Its core controller is a programmable logic controller (PLC). This method is built around a PLC and mainly includes the following functional modules:

[0097] Data Input Module 1: For each workstation, let the total number of workstations be... (For example, with four workstations,) ), for the first workstations ( Input the upper mold mass. The horizontal offset of the mold's center of gravity relative to the press's center line .

[0098] Among them, it is stipulated that: ; .

[0099] To facilitate the differentiation of workstation locations, all workstations are divided into a left-side workstation set and a right-side workstation set:

[0100]

[0101] The total eccentric load moment of the system is:

[0102]

[0103] in, This represents the acceleration due to gravity. The distances from the left and right balancers to the center of the slider are respectively... The center distance is: Number of balancers Effective area of ​​the balancer .

[0104] On-site measured parameters: The measured wind pressure value of the balancer needs to be entered. Including the measured wind pressure value of the left-side balancer when unloaded. The measured wind pressure value of the right-side balancer under no-load conditions. The no-load air pressure refers to the reference air pressure required solely to support the weight of the slider itself. It is obtained via an air pressure sensor when the slider clamp is not holding the mold. .

[0105] Method safety parameters: Preset maximum and minimum safe values ​​for the balancer's wind pressure, as well as a permissible error range for wind pressure. Maximum wind pressure. Minimum wind pressure Allowable error .

[0106] Define wind pressure control boundaries:

[0107]

[0108]

[0109] The adjustment module controls the solenoid valve to automatically adjust the air pressure by comparing the actual air pressure with the upper and lower limits of the air pressure. If the actual air pressure is less than the lower static limit of the air pressure, the intake valve is opened to allow air to enter. If the actual air pressure is between the lower and upper static limits of the air pressure, all valves are closed to maintain pressure. During the operation of the multi-station compressor, when the compressor slider is detected to be near the top dead center and in motion, and the actual air pressure is greater than (the upper dynamic limit of the air pressure - the allowable error range of the air pressure), the balancer will perform an exhaust operation. When the compressor slider is detected to be not in the top dead center area, and the actual air pressure is greater than the upper dynamic limit of the air pressure, the balancer will perform an exhaust operation.

[0110] Off-center load compensation force calculation module: After receiving the parameters from data input module 1, this module starts the calculation program. Its calculation process follows the principle of torque balance, and the specific steps are as follows:

[0111] Step 1: Calculate the compensation force required by the left-side balancer and the total torque generated by the left-side mold:

[0112]

[0113] The total torque generated by the mold on the right side:

[0114]

[0115] The required compensation force for the left balancer is:

[0116]

[0117] Step 2: Calculate the compensation force required from the right-side balancer:

[0118] The calculation logic is symmetrical to the left side. The total torque generated by the mold on the right side:

[0119]

[0120] The total torque generated by the mold on the left:

[0121]

[0122] The required compensation force for the right-side balancer is:

[0123]

[0124] Wind pressure setpoint calculation module: This module receives the total compensation force from the left and right sides from the eccentric load compensation force calculation module, and combines it with the pre-input method and structural parameters to calculate the final wind pressure setpoint. The calculation.

[0125] Target wind pressure of left-side balancer:

[0126]

[0127] Target wind pressure of the right-side balancer:

[0128]

[0129] Wind pressure detection module: This module consists of high-precision pressure sensors installed on the air supply lines of the left and right balancers. These sensors monitor the actual wind pressure values ​​of the left and right balancers in real time and continuously feed the signals back to the PLC.

[0130] Air pressure regulation module: This module is the actuator of the method, mainly composed of an electro-proportional valve or high-speed switching valve controlled by a PLC, connected between the factory air source and the balancer air circuit. The PLC issues "intake", "hold", or "exhaust" commands to this module according to the control logic.

[0131] in:

[0132]

[0133] and This represents the upper and lower limits of wind pressure.

[0134] Display and Alarm Modules: The display module is integrated into the human-machine interface (HMI) and displays the setpoint, actual value, method status, and adjustment process curve of the left and right wind pressures in real time. The alarm module, upon detecting abnormalities such as excessive wind pressure, sensor malfunction, or adjustment timeout, will display a warning message on the HMI and trigger an audible and visual alarm to alert the operator.

[0135] First, the method defines a series of wind pressure boundary values ​​based on safety parameters to ensure safe and accurate control. In static mode, the wind pressure boundaries are:

[0136]

[0137]

[0138] Wind pressure boundary in dynamic mode:

[0139]

[0140]

[0141] Static upper limit = (Target wind pressure value + Allowable wind pressure error range) × 1.2

[0142] Static lower limit of wind pressure = (Target wind pressure value - Allowable error range of wind pressure) × 0.8

[0143] Dynamic upper limit of wind pressure = (Target wind pressure value + Allowable error range of wind pressure) × 1.1

[0144] Dynamic lower limit of wind pressure = (Target wind pressure value - Allowable error range of wind pressure) × 0.9

[0145] in: , , , .

[0146] In one specific implementation, the detailed execution flow of the control logic is described below. Figure 3 As shown:

[0147] 1. Initialization and Calculation: After changing the mold, the operator inputs new parameters through the data input module and confirms the start. The PLC calls the calculation module to calculate the eccentric load moment and compensation moment, and then calculates the current target wind pressure on the left and right sides.

[0148] 2. Determine the current operating status of the press:

[0149] Static adjustment (press stops at top dead center): When the press is stopped and the slide is stably located at the top dead center, the method enters the static adjustment mode.

[0150] 3. The PLC compares the detected actual wind pressure with the upper and lower limits of wind pressure:

[0151] like The PLC then commands the air pressure regulating module to open the intake valve and begin pressurization.

[0152] like If the current air pressure meets the static accuracy requirements, all valves are closed to maintain the current pressure.

[0153] In static mode, active venting is typically not performed to maintain stability during shutdown.

[0154] 4. Dynamic monitoring and adjustment (while the press is running):

[0155] When the press starts running, the method switches to dynamic adjustment mode, which has a more relaxed control boundary to adapt to pressure fluctuations during operation.

[0156] Air intake detection: If the actual air pressure is detected to be lower than the dynamic lower limit of air pressure during operation, the air intake will be started immediately.

[0157] Exhaust detection: The exhaust logic is more complex, designed to avoid frequent exhaust and ensure safety.

[0158] a. If the press slide is near the top dead center and is still moving, then if Then the exhaust system will be activated.

[0159] b. If the press slide is not located in the top dead center region, and at this time... Then the exhaust system will be activated.

[0160] c. Safety-priority venting: Regardless of the compressor's status, if the actual air pressure exceeds the maximum safe air pressure value, this is considered an emergency, and forced venting is immediately executed until the pressure drops back to a safe range. That is:

[0161]

[0162] The control logic of the right-side balancer is completely symmetrical to that of the left-side balancer, and operates synchronously and independently.

[0163] Fault Diagnosis and Safety Assurance: In a preferred embodiment, the method also includes an adjustment timeout timer. If the air pressure of any balancer fails to reach the target range (static or dynamic) within a set time, an alarm module will be triggered, indicating potential faults such as air leakage, blockage, or sensor failure. Simultaneously, the method records all setting parameters, calculation processes, actual air pressure curves, and alarm information, providing data support for subsequent maintenance and optimization.

[0164] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0165] This invention achieves precise, automatic setting and dynamic adjustment of the air pressure of the balancer in a multi-station press by closely integrating parameterized input, theoretical calculation, and real-time feedback control. It counteracts the off-center load torque caused by the asymmetrical layout of multiple dies, fundamentally improving the stress condition of the slide block, enhancing the forming quality of stamped parts, the stability of equipment operation, and the service life of the dies. Simultaneously, it significantly reduces reliance on operator experience, achieving intelligent and precise control.

[0166] like Figure 4 As shown, the following is an embodiment of the air pressure adjustment system for a multi-station press balancer provided in this disclosure. It belongs to the same inventive concept as the air pressure adjustment method for a multi-station press balancer in the above embodiments. For details not described in detail in the embodiments of the air pressure adjustment system for a multi-station press balancer, please refer to the embodiments of the air pressure adjustment method for a multi-station press balancer described above.

[0167] A system for regulating the air pressure of a balancer in a multi-station press includes:

[0168] The data acquisition module is used to collect the mass parameters and center of gravity offset of the molds at each station of the multi-station press, as well as the structural parameters of the left and right balancers, the distance from the left and right balancers to the center of the slider, and the no-load air pressure and safe air pressure parameters.

[0169] The wind pressure calculation module is used to calculate the target wind pressure values ​​required by the left and right balancers based on the mass parameters, center of gravity offset, structural parameters of the left and right balancers, distances from the left and right balancers to the center of the slider, and no-load wind pressure; and to determine the upper and lower limits of wind pressure based on the target wind pressure values ​​and the safe wind pressure parameters.

[0170] The wind pressure comparison module is used to collect the actual wind pressure values ​​of the left and right balancers in real time through pressure sensors; and compare the actual wind pressure values ​​of the left and right balancers with the upper and lower limits of wind pressure to obtain the comparison result.

[0171] The air pressure regulation module is used to determine the current operating status of the multi-station press and control the air intake or exhaust of the left and right balancers based on the operating status and comparison results.

[0172] Figure 5 This is a schematic diagram of the hardware structure of an electronic device that implements various embodiments of the present invention.

[0173] The method for adjusting the air pressure of a multi-station press balancer provided in this application embodiment can be applied to electronic devices. Those skilled in the art will understand that the electronic device structure involved in the embodiments of this invention does not constitute a limitation on the electronic device. An electronic device may include more or fewer components than illustrated, or combine certain components, or have different component arrangements. In the embodiments of this invention, the electronic device includes, but is not limited to, laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the embodiments of this application described and / or claimed herein.

[0174] Electronic devices may include processors, external memory interfaces, internal memory, universal serial bus (USB) interfaces, charging management modules, power management modules, batteries, wireless communication modules, audio modules, speakers, microphones, sensor modules, buttons, cameras, displays, and SIM card interfaces, etc.

[0175] It is understood that the structures illustrated in the embodiments of this application do not constitute a specific limitation on the electronic device. In other embodiments of this application, the electronic device may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0176] A processor may include one or more processing units, such as: a central processing unit (CPU), an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural network processing unit (NPU). Different processing units may be independent devices or integrated into one or more processors.

[0177] The processor can serve as the nerve center and command center of an electronic device. The controller can generate operation control signals based on the instruction opcode and timing signals to control the fetching and execution of instructions.

[0178] The processor may also include memory for storing instructions and data. In some embodiments, the memory in the processor is a cache memory. This memory can store instructions or data that the processor has just used or that are used repeatedly. If the processor needs to use the instruction or data again, it can retrieve it directly from this memory. This avoids repeated accesses, reduces processor latency, and thus improves system efficiency.

[0179] An external storage interface (ESI) can be used to connect external memory cards, such as microSD cards, to expand the storage capacity of electronic devices. The external memory card communicates with the processor through the ESI to perform data storage functions, such as saving music and video files on the external memory card.

[0180] Internal memory can be used to store computer executable program code, which includes instructions. The processor executes various functional applications and data processing of electronic devices by running the instructions stored in internal memory. Internal memory can include a program storage area and a data storage area. Internal memory can include high-speed random access memory, and can also include non-volatile memory, such as at least one disk storage device, flash memory device, universal flash storage (UFS), etc.

[0181] Wireless communication functionality in electronic devices can be achieved through antennas, wireless communication modules, modem processors, and baseband processors.

[0182] Wireless communication modules can provide solutions for wireless communication applications in electronic devices, including wireless local area networks (WLANs) (such as wireless fidelity (Wi-Fi) networks), Bluetooth (BT), global navigation satellite system (GNSS), frequency modulation (FM), near field communication (NFC), and infrared (IR) technologies.

[0183] Electronic devices can implement audio functions through audio modules, speakers, receivers, microphones, headphone jacks, and application processors.

[0184] Electronic devices can achieve shooting functions through ISPs, cameras, video codecs, GPUs, displays, and application processors.

[0185] Electronic devices can achieve display functions through GPUs, displays, and application processors.

[0186] A GPU is a microprocessor for image processing, connected to the display screen and application processor. GPUs perform mathematical and geometric calculations for graphics rendering. A processor may include one or more GPUs, which execute program instructions to generate or modify display information.

[0187] A display screen is used to display images, videos, etc. A display screen includes a display panel.

[0188] The storage medium provided in this application stores a program product capable of implementing a method for adjusting the air pressure of a multi-station press balancer.

[0189] The method for adjusting the air pressure of the balancer in a multi-station press includes: collecting the mass parameters and center-of-gravity offset of the mold at each station of the multi-station press, as well as the structural parameters of the left and right balancers, the distance from the left and right balancers to the center of the slider, the no-load air pressure, and the safety air pressure parameters; calculating the target air pressure values ​​required by the left and right balancers based on the mass parameters, center-of-gravity offset, structural parameters of the left and right balancers, distance from the left and right balancers to the center of the slider, and no-load air pressure; determining the upper and lower limits of air pressure based on the target air pressure values ​​and the safety air pressure parameters; collecting the actual air pressure values ​​of the left and right balancers in real time through pressure sensors; comparing the actual air pressure values ​​of the left and right balancers with the upper and lower limits of air pressure to obtain the comparison results; determining the current operating state of the multi-station press, and controlling the air intake or exhaust of the left and right balancers based on the operating state and the comparison results.

[0190] In some possible implementations, the subject matter of this disclosure, namely, "Method and System for Adjusting Air Pressure of a Multi-Station Press Balancer," can be implemented as a program product comprising program code that, when run on a terminal device, causes the terminal device to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of this disclosure.

[0191] The storage medium disclosed herein may be any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof.

[0192] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for adjusting the air pressure of a balancer in a multi-station press, characterized in that, include: Collect the mass parameters and center of gravity offset of the mold at each station of the multi-station press, as well as the structural parameters of the left and right balancers, the distance from the left and right balancers to the center of the slider, and the no-load air pressure and safe air pressure parameters. Based on the mass parameters, center of gravity offset, structural parameters of the left and right balancers, and distances from the left and right balancers to the center of the slider, calculate the required off-center load compensation force for the left and right balancers, and combine it with the no-load wind pressure to calculate the target wind pressure value required for the left and right balancers; and determine the upper and lower limits of wind pressure based on the target wind pressure value and the safe wind pressure parameter. The actual wind pressure values ​​of the left and right balancers are collected in real time by pressure sensors; The actual wind pressure values ​​of the left and right balancers are compared with the upper and lower limits of the wind pressure to obtain the comparison results. Determine the current operating status of the multi-station press, and control the intake or exhaust of the left and right balancers based on the operating status and comparison results.

2. The method for adjusting the air pressure of the balancer of a multi-station press according to claim 1, characterized in that, Calculate the required off-center load compensation force for the left and right balancers using the following formula: In the formula, , These are the off-center load compensation forces required for the left and right balancers, respectively. For the total eccentric load moment, Let be the quality parameters of the i-th mold. It is the acceleration due to gravity. , These are the distances from the left and right balancers to the center of the slider, respectively. The center distance, This represents the total number of molds.

3. The method for adjusting the air pressure of the balancer of a multi-station press according to claim 2, characterized in that, Calculate the target wind pressure values ​​required for the left and right balancers using the following formula: In the formula, , These are the target wind pressure values ​​required for the left and right balancers, respectively. , These represent the number of left and right balancers, respectively. , These are the effective areas of the left and right balancers, respectively. , These are the no-load air pressures of the left and right balancers, respectively.

4. The method for adjusting the air pressure of the balancer of a multi-station press according to claim 1, characterized in that, The upper and lower limits of wind pressure include: the static upper limit and the static lower limit of wind pressure in static mode, and the dynamic upper limit and the dynamic lower limit of wind pressure in dynamic mode.

5. The method for adjusting the air pressure of the balancer of a multi-station press according to claim 4, characterized in that, Determining the current operating status of the multi-station press, and controlling the intake or exhaust of the left and right balancers based on the operating status and comparison results, including: In static mode, the actual air pressure is compared with the static lower limit and the static upper limit of air pressure. If the actual air pressure is less than the static lower limit of air pressure, the air intake valve is opened to allow air to enter. If the actual wind pressure is greater than or equal to the lower static limit of wind pressure and less than or equal to the upper static limit of wind pressure, then close all valves to maintain the current pressure; In dynamic mode, the actual wind pressure is compared with the dynamic lower limit and the dynamic upper limit of wind pressure. If the actual wind pressure is less than the dynamic lower limit of wind pressure, the air intake valve is opened to allow air to enter. If the actual air pressure is greater than the dynamic upper limit of air pressure, the press slide position will perform an exhaust operation.

6. The method for adjusting the air pressure of the balancer of a multi-station press according to claim 5, characterized in that, The exhaust operation in the dynamic mode specifically includes: When the slider is in the top dead center region and is still moving, if the actual wind pressure is greater than the static upper limit of wind pressure, exhaust will be started. If the actual air pressure is greater than or equal to the dynamic upper limit of air pressure when the slider is not in the top dead center region, exhaust will be started.

7. The method for adjusting the air pressure of the balancer of a multi-station press according to claim 6, characterized in that, The method for adjusting the air pressure of the multi-station press balancer also includes: a safety-first exhaust step. Regardless of whether the press is in static or dynamic mode, as long as the actual air pressure is greater than the preset maximum safe air pressure value, forced venting will be executed immediately until the pressure drops back to the safe range.

8. A system for regulating the air pressure of a balancer in a multi-station press, characterized in that, include: The data acquisition module is used to collect the mass parameters and center of gravity offset of the molds at each station of the multi-station press, as well as the structural parameters of the left and right balancers, the distance from the left and right balancers to the center of the slider, and the no-load air pressure and safe air pressure parameters. The wind pressure calculation module is used to calculate the target wind pressure values ​​required by the left and right balancers based on the mass parameters, center of gravity offset, structural parameters of the left and right balancers, distances from the left and right balancers to the center of the slider, and no-load wind pressure; and to determine the upper and lower limits of wind pressure based on the target wind pressure values ​​and the safe wind pressure parameters. The wind pressure comparison module is used to collect the actual wind pressure values ​​of the left and right balancers in real time through pressure sensors; The actual wind pressure values ​​of the left and right balancers are compared with the upper and lower limits of the wind pressure to obtain the comparison results. The air pressure regulation module is used to determine the current operating status of the multi-station press and control the air intake or exhaust of the left and right balancers based on the operating status and comparison results.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method for adjusting the air pressure of the balancer of the multi-station press as described in any one of claims 1 to 7.

10. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the method for adjusting the air pressure of the multi-station press balancer as described in any one of claims 1 to 7.

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