A soccer ball pressure control system and method

Abstract

The application discloses a football deflation control system and a control method. The system comprises an upper belt rotating device, a lower belt rotating device, a recovery cylinder and a control device. The lower belt rotating device is located below the upper belt rotating device. The distance between the upper belt rotating device and the lower belt rotating device is linearly variable. The upper belt rotating device is provided with a ram at intervals, and the lower belt rotating device is provided with a tray for placing a deflation balloon at intervals. The positions of the ram and the tray correspond to each other. The tray is used for placing a football with a ball needle inserted, and the ram is used for extruding the football. The control device is connected with the upper belt rotating device, the lower belt rotating device and the recovery cylinder. The application adopts linearly variable flexible extrusion to replace traditional instantaneous strong pressure, so that the football is uniformly and gently stressed, the skin tearing and the inner bag cracking are effectively avoided, the damage rate is greatly reduced, the deflation process stability and the operation efficiency are improved, the production loss is reduced, and the application is suitable for large-scale production and processing of footballs.

Description

Technical Field

[0001] This invention relates to the field of football production technology, and in particular to a football deflating control system and method. Background Technology

[0002] In the production and processing of soccer balls, degassing is an indispensable and crucial step. Whether it's depressurization after finished soccer ball inspection, degassing of defective soccer balls during recycling, or temporary degassing during intermediate production stages, efficient and safe degassing equipment is essential. Currently, the industry commonly uses traditional manually assisted degassing machines, which have rudimentary control methods, extremely low automation, and numerous intractable technical defects, as detailed below. These defects are interconnected and severely impact production efficiency and product quality: Extremely high breakage rate and difficulty in guaranteeing product quality: Traditional deflation machines lack a slow extrusion mechanism. After inserting the needle and placing the soccer ball, the machine only uses a hammer to quickly extrude the soccer ball within 1 second. The extrusion process has a large instantaneous impact force, which makes the soccer ball's surface easily torn and the inner bladder easily cracked. Especially for PU and soft material soccer balls, the breakage rate is as high as 15% or more, which greatly increases production loss costs. Summary of the Invention

[0003] In order to solve the problems existing in the prior art, the present invention aims to provide a football deflation control system and method, which can reduce the breakage rate.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A football deflating control system includes: an upper belt rotating device, a lower belt rotating device, a recovery cylinder, and a control device; The lower belt rotating device is located below the upper belt rotating device; The distance between the upper belt rotating device and the lower belt rotating device changes linearly and gradually. The upper belt rotating device is provided with hammers at intervals, and the lower belt rotating device is provided with trays at intervals for placing balloons to be deflated. The hammers and the trays are positioned correspondingly. The trays are used to place soccer balls with needles inserted, and the hammers are used to squeeze the soccer balls. The control device is connected to the upper belt rotating device, the lower belt rotating device, and the recovery cylinder.

[0005] As a further improvement of the present invention, the present invention also includes: A first speed sensor is mounted on the upper belt rotating device to obtain the current rotation speed of the upper belt rotating device; The second speed sensor is installed on the lower belt rotating device to obtain the current rotation speed of the lower belt rotating device; A pressure sensor, mounted on the ball needle, is used to obtain the internal pressure of the football; A displacement sensor is mounted on the hammer to detect the distance between the upper belt rotating device and the lower belt rotating device; A time detection module is installed on the side of the upper belt rotating device, the side of the lower belt rotating device, the hammer, and the tray. It is used to detect the first time when the upper belt rotating device reaches the preset monitoring point and the second time when the lower belt rotating device reaches the preset monitoring point based on the current rotation speed of the lower belt rotating device.

[0006] As a further improvement of the present invention, the spacing is determined in the following manner: Based on the ball's passing distance, the spacing between the upper and lower belt rotating devices is calculated using the spacing variation formula. The spacing is corrected using a feedback adjustment formula.

[0007] As a further improvement of the present invention, the formula for the change in spacing is expressed as follows:

[0008] in, The distance between the upper and lower belt rotating devices is x when the lower belt rotating device transmits a distance of x. The distance between the upper belt rotating device and the lower belt rotating device when entering the lower belt rotating device; To ensure the spacing for fully deflating the football; The feedback adjustment formula is expressed as follows:

[0009] in, This is the corrected spacing. The rate at which air is released from the football; (t) represents the real-time venting rate.

[0010] The present invention also provides a football deflating control method applied to the above-mentioned football deflating control system, comprising: When the football is in the lower belt rotating device, the upper belt rotating device and the lower belt rotating device are adjusted to rotate synchronously to compress the football; When the football has finished deflating, the actuation cylinder pulls out the needle.

[0011] As a further improvement of the present invention, the step of adjusting the synchronous state of the upper belt rotating device and the lower belt rotating device includes: Get the current speed of the upper belt drive and the current speed of the lower belt drive; The first time when the upper belt rotating device reaches the preset monitoring point is determined based on the current rotation speed of the upper belt rotating device, and the second time when the lower belt rotating device reaches the preset monitoring point is determined based on the current rotation speed of the lower belt rotating device. Based on the first and second time points, determine whether the upper belt rotating device and the lower belt rotating device are in a state of synchronous rotation; If the upper belt drive and the lower belt drive are rotating out of sync, then the belt drive with the faster speed will be slowed down.

[0012] As a further improvement of the present invention, if the upper belt rotating device and the lower belt rotating device are still in a state of asynchronous rotation after the current high-speed belt is decelerated three times, a fault warning is issued.

[0013] As a further improvement of the present invention, the step of determining whether the upper belt rotating device and the lower belt rotating device are in a state of synchronous rotation based on the first time and the second time includes: Calculate the time difference between the first and second time points; If the time difference is greater than the maximum allowable time difference, it is determined that the upper belt drive and the lower belt drive are out of sync.

[0014] As a further improvement to this invention, an AI optimization algorithm is used to optimize the maximum allowable time difference, the deflation rate of the soccer ball, and the spacing. The expression of the AI ​​optimization algorithm formula is as follows:

[0015] in, To be the optimal control parameters, The value of the independent variable is determined by the minimum value of the objective function. For time cost items, For single-station cycle time, For time weighting coefficients, These are terms related to force, location, and energy consumption. The compressive force between the upper and lower belt rotating devices. This refers to the distance between the upper belt drive and the lower belt drive. The energy consumption weighting coefficient is used. This is the rate of change of air pressure. This represents the pressure difference before and after the football is deflated. The duration for each football to de-escalate. This is the pressure control weighting coefficient.

[0016] As a further improvement of the present invention, the step of driving the recovery cylinder to pull out the needle when the football has finished deflating includes: Get real-time internal pressure of the football; If the internal pressure reaches the target pressure for venting, drive the recovery cylinder to pull out the ball needle; When the ball needle is confirmed to be in place, the recovery cylinder is stopped.

[0017] Compared with existing technologies, this invention has the following advantages: By employing an upper belt rotating device and a lower belt rotating device with linearly gradually changing spacing to compress the soccer ball, it achieves flexible and gradual pressure application, completely eliminating the instantaneous high-impact compression method of traditional equipment, effectively preventing tearing of the soccer ball's outer skin and cracking of the inner bladder. Especially for soccer balls made of highly elastic materials such as PU and soft materials, the breakage rate can be reduced from over 15% to an extremely low level, significantly reducing production losses and lowering production costs. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the overall structure of the football deflating control system described in Example 1; Figure 2 This is a partial structural diagram of the football degassing control system described in Example 1; Figure 3 This is a schematic diagram of the displacement sensor in the football deflating control system described in Example 1; Figure 4 This is a schematic diagram of the regenerative cylinder of the football degassing control system described in Example 1.

[0020] Explanation of reference numerals in the attached drawings: 1. Upper belt rotating device; 101. Upper belt variable frequency motor; 2. Lower belt rotating device; 201. Lower belt variable frequency motor; 3. Recycling cylinder; 4. Control device; 5. Displacement sensor; 6. Time detection module; 601. Magnetic sheet; 602. Magnetic sensor; 7. Impact hammer; 8. Tray; 9. Elastic gripper; 10. Ball needle. Detailed Implementation

[0021] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below. 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.

[0022] Example 1 This embodiment discloses a football deflation control system, such as Figures 1 to 4As shown, it includes: an upper belt rotating device, a lower belt rotating device, a recovery cylinder, and a control device; the recovery cylinder is located behind the upper and lower belt rotating devices; the distance between the upper and lower belt rotating devices changes linearly, specifically, the distance gradually decreases along the belt conveying direction; the lower belt rotating device is located below the upper belt rotating device; the upper belt rotating device is equipped with impact hammers at intervals, and the lower belt rotating device is equipped with trays at intervals, the positions of the impact hammers and trays are corresponding, the trays are used to place the soccer ball with the ball needle inserted, and the impact hammers are used to squeeze the soccer ball; the control device is connected to the upper belt rotating device, the lower belt rotating device, and the recovery cylinder; when the soccer ball enters the upper belt rotating device, the control device controls the upper and lower belt rotating devices to enter a synchronous rotation state; when the soccer ball enters the lower belt rotating device, due to the gradual decrease in the distance between the upper and lower belt rotating devices, the soccer ball is squeezed and deflated; after the soccer ball is deflated, the control device drives the recovery cylinder to pull out the ball needle.

[0023] Furthermore, the soccer ball deflating control system of this embodiment also includes: a first speed sensor, a second speed sensor, a pressure sensor, a displacement sensor, and a time detection module; the first speed sensor is disposed on the upper belt rotating device and is used to obtain the current rotation speed of the upper belt rotating device; the second speed sensor is disposed on the lower belt rotating device and is used to obtain the current rotation speed of the lower belt rotating device; the pressure sensor is disposed on the ball needle and is used to obtain the internal pressure of the soccer ball; the displacement sensor is disposed on the hammer and is used to detect the distance between the upper belt rotating device and the lower belt rotating device; the time detection module is disposed on the side of the upper belt rotating device, the side of the lower belt rotating device, the hammer, and the tray, and is used to detect the first time when the upper belt rotating device reaches the preset monitoring point, and the second time when the lower belt rotating device reaches the preset monitoring point based on the current rotation speed of the lower belt rotating device. Specifically, the time detection module includes: magnetic sheets, magnetic sensors, and magnetic sheets are provided for the upper belt rotating device, the lower belt rotating device, each hammer, and each tray. Magnetic sensors are installed on the walls next to the upper belt rotating device and the lower belt rotating device. When the magnetic sensors detect the magnetic field of the magnetic sheets, they generate electrical signals. At this time, the generation time of the electrical signals is recorded. By comparing the first and second times when the electrical signals generated by the two magnetic sensors are generated, it is determined whether the upper belt rotating device and the lower belt rotating device have entered a synchronous rotation state.

[0024] Furthermore, the upper belt rotating device is equipped with an upper belt variable frequency motor, and the lower belt rotating device is equipped with a lower belt variable frequency motor. The upper belt variable frequency motor and the lower belt variable frequency motor are driven by a control device to achieve independent control of the upper belt rotating device and the lower belt rotating device.

[0025] As one implementation method, the speed sensor can be integrated into the variable frequency motor.

[0026] The piston rod of the recovery cylinder is connected to an elastic gripper. After the air is released, the recovery cylinder is activated, the elastic gripper grabs the tail of the ball needle along the axis of the ball needle, the recovery cylinder retracts, and the ball needle falls into a special recovery box through a guide tube.

[0027] Specifically, the tail of the ball needle is connected to a block by a rope, and the elastic gripper holds the block. When the belt drive rotates, the ball needle is automatically pulled out. The movement of the hammer is detected by the time detection module, and when the set distance is reached, the recovery cylinder is controlled to retract it.

[0028] To further automate the process, a conveyor belt for collecting the needles is installed below the lower belt drive. The dedicated collection box containing the needles is transported back to the operator via the conveyor belt for subsequent degassing.

[0029] To achieve better degassing, technicians will adjust the distance between the upper and lower belt drive devices after the machine stops, based on the degassing effect. The distance is determined as follows: the distance between the upper and lower belt drive devices is calculated using a distance variation formula based on the ball's transmission distance; and a feedback adjustment formula is used to correct the distance.

[0030] Furthermore, the formula for the change in spacing is expressed as follows:

[0031] in, When the transmission distance of the lower belt rotating device is x, x∈[0,L], when the football just begins to enter the lower belt rotating device for transmission, the distance between the upper belt rotating device and the lower belt rotating device is relatively large, and the football has not yet begun to be squeezed. As the football is transmitted on the belt, the distance gradually decreases. At this time, when the football enters the lower belt rotating device, the distance between the upper belt rotating device and the lower belt rotating device is... The distance between the upper belt drive and the lower belt drive when entering the extrusion section. >D, where D is the diameter of the soccer ball; To ensure the spacing for fully deflating the football; To ensure the spacing of the football when it is fully deflated, <D.

[0032] The feedback adjustment formula is expressed as follows:

[0033] in, This is the corrected spacing. The rate at which air is released from the football; (t) represents the real-time venting rate. P0 represents the initial pressure of the soccer ball; P(t) represents the real-time pressure inside the soccer ball at time t, which is acquired in real time by a pressure sensor.

[0034] Example 2 This embodiment discloses a method for controlling the deflation of a soccer ball, such as... Figure 2 As shown, the football deflating control system applied in Example 1 includes: S0. Initialization: The control device automatically reads the preset parameters in the parameter storage module, including: conveyor belt speed, spacing, standard air pressure threshold, and target air pressure for venting. It performs self-checks on the upper belt rotating device, lower belt rotating device, recovery cylinder, extrusion adjustment device, and various sensors. If the self-check is normal, it enters standby mode; if the self-check is abnormal, it triggers the fault alarm module, displays the fault code, and suspends operation to prevent the fault from escalating.

[0035] S1. When the football is in the lower belt rotating device, the upper belt rotating device and the lower belt rotating device are adjusted to rotate synchronously to squeeze the football.

[0036] Specifically, step S1 includes: S11. Obtain the current rotation speed of the upper belt drive. Current speed of the lower belt drive The unit of rotational speed is r / min.

[0037] S12. Determine the first time when the upper belt rotating device reaches the preset monitoring point based on the current rotation speed of the upper belt rotating device. The second time when the lower belt rotating device reaches the preset monitoring point is determined based on the current rotation speed of the lower belt rotating device. The unit of time is seconds.

[0038] S13, Based on the first time Second time Determine whether the upper belt rotating device and the lower belt rotating device are rotating synchronously.

[0039] In this process, the first time is calculated. Second time Time difference : ; Such as time difference Greater than the maximum allowed time difference If this occurs, it is determined that the upper and lower belt drive mechanisms are out of sync. Maximum allowable time difference. To adapt to the accuracy of the equipment, a value of 0.1~0.2s is preferred as the threshold for determining whether synchronization is successful.

[0040] when The upper and lower belt rotating devices are determined to be rotating synchronously. There is no need to adjust the speed of the belt variable frequency motor. The current operating parameters are maintained to ensure that the football is squeezed smoothly. when It is determined that the upper belt rotating device and the lower belt rotating device are in a state of asynchronous rotation.

[0041] like Then the upper belt drive will run faster. , The speed of the variable frequency motor with the upper belt needs to be adjusted; if Then the lower belt drive will run faster. , The speed of the belt-driven variable frequency motor needs to be adjusted.

[0042] S14. If the upper and lower belt drive devices are rotating asynchronously, the speed of the faster belt drive device will be reduced. The core principle is to avoid changing the speed of the slower belt drive device, thus preventing disruption of the football squeezing rhythm and minimizing the impact of adjustments on equipment operation.

[0043] The shorter the time to reach the monitoring point, the faster the belt drive operates. At the same monitoring point, speed and time are inversely proportional. Based on this, the belt drive and belt frequency converter that need speed adjustment can be quickly determined. The formula is expressed as: (v is the linear speed of the belt, and t is the time to reach the monitoring point).

[0044] The core of synchronous operation is that the linear velocities of the upper and lower belt drive devices are consistent, which is achieved by combining the linear velocity formula. The formula for calculating the target speed for deceleration control is derived to ensure precise adjustment without over-adjustment. The specific steps are as follows: Calculate the speed of the belt-driven variable frequency motor on the faster side: The initial speed of the belt-driven variable frequency motor corresponding to the faster belt drive is The adjusted target speed is (Unit: r / min); The speed of the belt-driven variable frequency motor corresponding to the slower belt drive is... (Unit: r / min), used as the speed regulation reference.

[0045] Based on the principle of equal linear velocity Combining the linear velocity formula The formula for the basic target rotational speed is derived as follows:

[0046] If belt slippage occurs during equipment operation, a correction factor is introduced to optimize accuracy, and the target speed formula is modified accordingly.

[0047] Correction parameters: Belt linear speed is proportional to motor speed; slippage correction coefficient. The value ranges from 0.98 to 1.02, with a default value of 1.0. It can be adjusted according to the wear and tear of the equipment.

[0048] The target speed of the belt-driven variable frequency motor on the faster side after adjustment needs to be compatible with the speed regulation range of the variable frequency motor to ensure that it is within the allowable operating range of the equipment.

[0049] The current speed of the variable frequency motor on the slower side of the belt is used as the speed regulation reference and is not adjusted to ensure the stability of the football squeezing rhythm.

[0050] The time it takes for the belt on the faster side to reach the monitoring point; : The time it takes for the slower side of the conveyor belt to reach the monitoring point.

[0051] Speed ​​adjustment implementation and secondary verification: Belt-driven variable frequency motor Smooth speed regulation is performed with a regulation time set to 0.3~0.5s to avoid belt vibration and soccer ball deviation caused by sudden speed changes. A linear speed regulation algorithm is used during the speed regulation process. , The speed adjustment time is t, where t is the instantaneous time of speed adjustment. After the speed adjustment is completed, the monitoring point continuously collects the arrival times of the upper and lower belt rotating devices and calculates the new time difference. ;like If the adjustment is complete, maintain the current speed; if Repeat the steps to adjust the speed until the synchronization requirements are met.

[0052] If, after three speed reduction controls on the currently high-speed belt, the upper and lower belt drive mechanisms remain out of sync, a fault warning will be issued. The fault may be belt slippage, motor failure, or monitoring point misalignment. In this case, the entire system will halt operation, and fault data will be uploaded to a remote monitoring platform, recording parameters such as current speed and time difference to facilitate quick troubleshooting by operators.

[0053] If the maximum number of adjustments exceeds 3, the belt-driven frequency converter motor may be damaged.

[0054] For example, suppose that the rotational speed of the upper belt drive is... Time of arrival at the monitoring point Speed ​​of the lower belt drive Time of arrival at the monitoring point Maximum allowed time difference Correction factor .

[0055] Calculate the time difference The system is out of sync, so the belt is engaged faster. Substitute into the target speed formula: ; Adjust the speed of the upper belt inverter motor to 80 r / min, and perform secondary monitoring if... , To meet synchronization requirements and ensure smooth compression of the football.

[0056] S2. When the football is deflated, the conveyor belt, the upper belt rotating device, and the lower belt rotating device stop working. At the same time, the drive recovery cylinder pulls out the ball needle.

[0057] Specifically, the real-time internal pressure P(t) of the soccer ball is acquired. If the internal pressure reaches the target deflation pressure P1, the recovery cylinder is activated to pull out the needle. When the needle is confirmed to be fully pulled out, the recovery cylinder is stopped. Fully pulled out refers to a depth ≥ 5mm. After the recovery cylinder stops, the needle automatically falls into a dedicated recovery box through a guide tube. Once the displacement sensor detects that the needle is fully recovered, it transmits a signal to the control device, initiating the next step.

[0058] After the ball needle is retrieved, the control device controls the conveyor belt to resume operation, transporting the deflated soccer ball to the sorting and transfer port. The pressure sensor confirms again whether the pressure inside the soccer ball has reached the deflation target pressure P1. If it meets the requirement, the control device controls the sorting and transfer mechanism to automatically send the qualified deflated soccer ball to the next processing stage, such as testing and packaging, achieving seamless connection between deflation and subsequent processes, without the need for manual transfer throughout the entire process.

[0059] To enable the use of AI optimization algorithms to optimize the maximum allowable time difference, football deflation rate, and gradual spacing, and based on the optimized parameters, the parameters of the football deflation control system are modified during the shutdown phase. The expression for the AI ​​optimization algorithm formula is as follows:

[0060] in, The optimal control parameters include core parameters such as optimal extrusion pressure, optimal venting speed, optimal cylinder actuation timing, and optimal belt speed. To find the value of the independent variable that minimizes the objective function, the algorithm iterates to find the globally optimal combination of control parameters, thereby achieving multi-objective coordinated optimal control that balances efficiency, energy consumption, and motion accuracy. For time cost items, the shorter the time taken, the smaller the value of this item, and the higher the control priority; For single-station cycle time, For time weighting coefficients, These are terms related to force, location, and energy consumption. The compressive force / cylinder thrust between the upper belt drive and the lower belt drive; The belt spacing is used to balance clamping stability and energy consumption. The energy consumption weighting coefficient is used. This is the rate of change of air pressure. This represents the pressure difference before and after the football is deflated. The duration for deflating each football; This is a pressure control weighting coefficient to ensure uniform venting rate and no air or pressure leakage. , The value is determined based on actual production line requirements. For example, it can be determined as follows: if the efficiency of the football degassing control system is to be prioritized, then increase... The value should be increased if it is necessary to ensure compression safety. To ensure stable degassing, increase the value of [value]. The value of can be determined by iteratively adjusting the coefficients through multiple sets of field experiments or simulations to find the combination that optimizes the overall performance of the objective function.

[0061] In this description, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0062] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0063] The technical principles of the present invention have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of the invention and should not be construed as limiting the scope of protection of the invention in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of the invention without inventive effort, and these embodiments will all fall within the scope of protection of the present invention.

Claims

1. A football deflation control system, characterized in that, include: Upper belt drive, lower belt drive, recovery cylinder, control device; The lower belt rotating device is located below the upper belt rotating device; The distance between the upper belt rotating device and the lower belt rotating device changes linearly and gradually. The upper belt rotating device is provided with hammers at intervals, and the lower belt rotating device is provided with trays at intervals for placing balloons to be deflated. The hammers and the trays are positioned correspondingly. The trays are used to place soccer balls with needles inserted, and the hammers are used to squeeze the soccer balls. The control device is connected to the upper belt rotating device, the lower belt rotating device, and the recovery cylinder.

2. The football deflation control system according to claim 1, characterized in that, Also includes: A first speed sensor is mounted on the upper belt rotating device to obtain the current rotation speed of the upper belt rotating device; The second speed sensor is installed on the lower belt rotating device to obtain the current rotation speed of the lower belt rotating device; A pressure sensor, mounted on the ball needle, is used to obtain the internal pressure of the football; A displacement sensor is mounted on the hammer to detect the distance between the upper belt rotating device and the lower belt rotating device; A time detection module is installed on the side of the upper belt rotating device, the side of the lower belt rotating device, the hammer, and the tray. It is used to detect the first time when the upper belt rotating device reaches the preset monitoring point and the second time when the lower belt rotating device reaches the preset monitoring point based on the current rotation speed of the lower belt rotating device.

3. The football deflation control system according to claim 1, characterized in that, The spacing is determined in the following manner: Based on the ball's passing distance, the spacing between the upper and lower belt rotating devices is calculated using the spacing variation formula. The spacing is corrected using a feedback adjustment formula.

4. The football deflation control system according to claim 3, characterized in that, The formula for the change in spacing is expressed as follows: in, The distance between the upper and lower belt rotating devices is x when the lower belt rotating device transmits a distance of x. The distance between the upper belt rotating device and the lower belt rotating device when entering the lower belt rotating device; To ensure the spacing for fully deflating the football; The feedback adjustment formula is expressed as follows: in, This is the corrected spacing. The rate at which air is released from the football; (t) represents the real-time venting rate.

5. A method for controlling the deflation of a soccer ball, characterized in that, The football deflation control system as described in any one of claims 1 to 4 comprises: When the football is in the lower belt rotating device, the upper belt rotating device and the lower belt rotating device are adjusted to rotate synchronously to compress the football; When the football has finished deflating, the actuation cylinder pulls out the needle.

6. The method for deflating a soccer ball according to claim 5, characterized in that, The step of synchronizing the upper belt rotating device and the lower belt rotating device includes: Get the current speed of the upper belt drive and the current speed of the lower belt drive; The first time when the upper belt rotating device reaches the preset monitoring point is determined based on the current rotation speed of the upper belt rotating device, and the second time when the lower belt rotating device reaches the preset monitoring point is determined based on the current rotation speed of the lower belt rotating device. Based on the first and second time points, determine whether the upper belt rotating device and the lower belt rotating device are in a state of synchronous rotation; If the upper belt drive and the lower belt drive are rotating out of sync, then the belt drive with the faster speed will be slowed down.

7. The method for deflating a soccer ball according to claim 6, characterized in that, If, after three speed reduction controls on the currently high-speed belt, the upper and lower belt rotating devices are still rotating out of sync, a fault warning will be issued.

8. The method for deflating a soccer ball according to claim 7, characterized in that, The step of determining whether the upper belt rotating device and the lower belt rotating device are in a state of synchronous rotation based on the first time and the second time includes: Calculate the time difference between the first and second time points; If the time difference is greater than the maximum allowable time difference, it is determined that the upper belt drive and the lower belt drive are out of sync.

9. The method for deflating a soccer ball according to claim 8, characterized in that, AI optimization algorithms are used to optimize the maximum allowable time difference, the deflation rate of the soccer ball, and the spacing. The expression of the AI ​​optimization algorithm formula is as follows: in, To be the optimal control parameters, The value of the independent variable is determined by the minimum value of the objective function. For time cost items, For single-station cycle time, For time weighting coefficients, These are terms related to force, location, and energy consumption. The compressive force between the upper and lower belt rotating devices. This refers to the distance between the upper belt drive and the lower belt drive. The energy consumption weighting coefficient is used. This is the rate of change of air pressure. This represents the pressure difference before and after the football is deflated. The duration for each football to de-escalate. This is the pressure control weighting coefficient.

10. The method for deflating a soccer ball according to claim 6, characterized in that, The step of driving the recovery cylinder to pull out the needle when the football has finished deflating includes: Get real-time internal pressure of the football; If the internal pressure reaches the target pressure for venting, drive the recovery cylinder to pull out the ball needle; When the ball needle is confirmed to be in place, the recovery cylinder is stopped.

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