Aluminum material shearing machine pressure self-adjusting feeding system based on synchronous rollers

Abstract

The invention provides an aluminum material shearing machine pressure self-adjusting feeding system based on synchronous rollers, relates to the technical field of aluminum material shearing machines, and adopts three synchronous rollers to be mounted in a mounting groove in the surface of a turntable through a movable block, a pneumatic telescopic rod and a pressure sensor in a combined manner to form multi-point support and tension control on an aluminum material. The console collects an extrusion force signal output by the pressure sensor in real time, calculates an actual pressure value in the horizontal direction through a pressure decomposition algorithm in combination with a turntable angle output by the angle sensor, compares the actual pressure value with a preset tension threshold value to generate an error signal, and drives the pneumatic telescopic rod to dynamically adjust the position of the synchronous roller; and when the error exceeds a set range, the servo motor can be controlled to adjust the angle of the turntable, and the wrapping angle of the synchronous roller is changed to realize tension compensation. The conveying tension of the aluminum material under the complex working condition is kept stable, the conditions of loosening, wrinkling, deviation and too tight snapping are avoided, and therefore the stability of the aluminum material in the conveying process and the follow-up shearing precision are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aluminum material shearing machine, in particular to a pressure self-adjusting feeding system of aluminum material shearing machine based on synchronous rollers. BACKGROUND

[0002] In the continuous shearing, slitting and other processing processes of aluminum material or metal sheet material such as aluminum strip, a series of feeding processes such as unwinding, traction, guiding and tension adjustment are required before entering the shearing area. The existing aluminum material shearing machine feeding system generally uses fixed rollers or simple tension control mechanisms to control the conveying tension of the aluminum material by manually setting the unwinding resistance and adjusting the distance between the guide rollers.

[0003] The above patent documents and prior art have the following technical problems when in use: Problem one, the traditional unwinding tension depends on mechanical friction plates, mechanical springs and single servo control mode, which cannot quickly adjust according to the real-time tension changes in the running process of the aluminum material, resulting in the aluminum material being prone to tension being too large or too small in the transmission process. When the tension is insufficient, the aluminum material will be relaxed, wrinkled or even deviated; when the tension is too large, the material will be stretched, deformed or even broken; Problem two, although some shearing machines are provided with multiple guide rollers and synchronous rollers, the pressure and position between these rollers are usually fixed and cannot be self-adaptively adjusted according to the actual stress state during equipment operation, resulting in uneven tension of the material at different running stages and different roll diameters, affecting the subsequent shearing precision; Problem three, closed-loop regulation cannot be achieved: in the prior art, the pressure detection and adjustment mechanism usually works independently, lacks fusion calculation of multi-source data such as angle and position, and cannot form a real closed-loop control. Facing complex running conditions such as unwinding speed change, roll diameter change and guide angle adjustment, the traditional system is difficult to calculate and compensate in real time, causing the feeding process to be unstable; Problem four, the traditional structure adopts a fixed guide angle and cannot actively adjust the wrapping angle of the rollers to the aluminum material. This cannot obtain ideal friction force and tension control in some working conditions, affecting the overall conveying stability and shearing quality. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a pressure self-adjusting feeding system of aluminum material shearing machine based on synchronous rollers, which solves the following problems: 1. The tension control of the traditional aluminum material feeding system relies on mechanical structure and single servo control, which cannot realize real-time and accurate adjustment of the tension of the aluminum material, resulting in problems such as material relaxation, wrinkling and breakage; 2. In the traditional feeding system, the lack of coordinated dynamic adjustment mechanism between multiple guide rollers and synchronous rollers leads to uneven tension distribution, affecting the stability of aluminum material conveying and shearing precision; 3. In the traditional feeding system, the pressure, angle and position of the guide roller and the synchronous roller cannot be fused, real-time closed-loop control cannot be formed, and complex working conditions caused by unwinding speed, roll diameter and guide angle changes are difficult to cope with; 4. In the traditional feeding system, the fixed angle of the synchronous roller limits the adjustment of the wrapping angle of the aluminum material, affects the friction force and tension control of the roller and the material, and reduces the stability of the conveying system.

[0005] To achieve the above purpose, the present application is realized by the following technical scheme: an aluminum material shearing machine pressure self-adjusting feeding system based on synchronous rollers, comprising a shearing machine body, characterized in that: one side of the shearing machine body is provided with an unwinding machine, the middle of the shearing machine body is provided with a fixed roller, both sides of the shearing machine body are provided with servo motors, one side of the servo motor on one side of the shearing machine body is provided with a control console, the bottom of the fixed roller is provided with two rotating discs, the surfaces of the two rotating discs are provided with three installation grooves, and the other surfaces of the two rotating discs are provided with rotating shafts, the interiors of the three installation grooves on the surfaces of the two rotating discs are provided with pneumatic telescopic rods, one end of each of the three pneumatic telescopic rods is provided with a moving block, one side of each of the pneumatic telescopic rods is provided with an air pipe, the middle of each of the moving blocks and the pneumatic telescopic rods is provided with a mounting bracket, the surface of each of the mounting brackets is provided with a pressure sensor, the surface of each of the moving blocks is provided with an installation hole, the interior of each of the installation holes is provided with a ball bearing, the middle of each of the two rotating discs is provided with three synchronous rollers, and the inner wall surface of the shearing machine body is provided with an angle sensor.

[0006] Preferably, the shearing machine body and the unwinding machine are in a parallel state, the fixed roller is arranged at the top end of the shearing machine body near the unwinding machine side, and both ends of the fixed roller are connected with the shearing machine body, the two servo motors are mirror image arranged with the shearing machine body as the center, and both of the servo motors are bolted to the shearing machine body, both of the servo motors are arranged at the bottom of the fixed roller, and both of the servo motors, the angle sensor and the unwinding machine are in line communication with the control console.

[0007] Preferably, the two rotating discs are mirror image mounted on the inner walls of both sides of the shearing machine body, and the positions of the rotating discs correspond to the positions of the servo motors one by one, both of the rotating shafts are integrally formed with the rotating discs, and both of the rotating shafts penetrate the inner wall of the shearing machine body and are keyed connected with the servo motors, the rotating shafts are connected with the shearing machine body, and the rotating shafts on one side of the rotating disc surface are sleeved with the angle sensor, and the angle sensor is bolted to the shearing machine body.

[0008] Preferably, the two said rotary discs are in the shape of a Laffer triangle, and the three mounting slots on the surface of the two rotary discs are arranged in a circumferential array, the pneumatic telescopic rods inside the mounting slots are bolted to the rotary discs, the bottom surface of the mounting frame is mounted on the top surface of the pneumatic telescopic rods, and the top surface of the mounting frame is mounted on the bottom surface of the moving block, the pneumatic telescopic rods, mounting frame and moving block are bolted together, the pressure sensors are mounted on the mounting frame, and the pressure sensors are threadedly connected to the mounting frame, one end of the pressure sensors abuts against the moving block, and the moving block is connected to the pneumatic telescopic rods through the mounting frame.

[0009] Preferably, one end of the air pipe penetrates the rotary disc and communicates with the pneumatic telescopic rod pipeline inside the mounting slot on the surface of the rotary disc, the air pipe is made of silica gel material, the ball bearings inside the mounting holes on the surface of the moving block are clamped to the moving block, and the three synchronous rollers arranged in the middle of the two said rotary discs are arranged one-to-one corresponding to the positions of the moving blocks arranged inside the three mounting slots on the surface of the rotary disc, and the two ends of the synchronous rollers are inserted into the ball bearings inside the mounting holes on the surface of the moving block.

[0010] Preferably, the synchronous rollers are mounted in the ball bearings of the moving blocks inside the mounting slots on the surface of the rotary disc, the pneumatic telescopic rods are connected to the moving blocks through the mounting frame and located inside the mounting slots, the control console is electrically connected to the pneumatic telescopic rods, and the pneumatic telescopic rods can drive the moving blocks and synchronous rollers to change the radial position.

[0011] Preferably, the control console is built-in with a pressure self-adaptive adjustment algorithm and a pressure decomposition algorithm, the algorithm includes: real-time sampling of the pressure signal output by the pressure sensor, calculation of the current pressure error value between the synchronous roller and the aluminum material according to the preset tension threshold and the pressure change trend, making the pressure error value close to zero by controlling the telescopic stroke of the pneumatic telescopic rod, and closed-loop control of the tension of the synchronous roller on the aluminum material, the pressure self-adaptive adjustment algorithm and the pressure decomposition algorithm are cooperatively operated.

[0012] Preferably, when the servo motor drives the rotary disc to rotate, the angle sensor outputs the rotation angle θ of the rotary disc in real time, so that the synchronous roller, pressure sensor and pneumatic telescopic rod are in a diagonal state, the extrusion force detected by the pressure sensor is a diagonal extrusion force, the control console calculates the original pressure value in the horizontal direction according to the angle θ provided by the angle sensor, and adjusts the telescopic stroke of the pneumatic telescopic rod accordingly, for compensation control of the position of the synchronous roller, and the pressure decomposition algorithm provides the horizontal direction pressure value for the pressure self-adaptive adjustment algorithm as the basis for tension adjustment.

[0013] Preferably, the pressure decomposition algorithm and the pressure self-adaptive adjustment algorithm in the control console are cooperatively operated to form a set of composite control logic, and the steps include: ​Sp1, the real-time angle of the rotating disc θ obtained by the angle sensor output; Sp2, the actual pressure value originally along the horizontal direction is obtained by decomposing and calculating the oblique extrusion force signal output by the pressure sensor according to the angle θ Sp3, the actual horizontal direction pressure value is compared with the preset tension force threshold value, and an error signal is generated; Sp4, the telescopic length of the pneumatic telescopic rod is adjusted based on the error signal, the tension force of the synchronous roller on the aluminum material is dynamically adjusted, the tension force is stabilized in the preset range, and the real-time self-adaptive adjustment of the tension force of the aluminum material under different angles of the rotating disc is realized.

[0014] The application provides an aluminum material shearing machine pressure self-adjusting feeding system based on a synchronous roller. 1, the technical scheme realizes real-time tension detection and active adjustment of the aluminum material in the transmission process through the combination of three synchronous rollers and corresponding moving blocks-pneumatic telescopic rods-pressure sensors arranged in the middle of the shearing machine body. Unlike traditional mechanical friction plates and single servos, the system collects the contact pressure between the synchronous roller and the aluminum material in real time during operation. The pressure sensor converts the detected pressure signal into an electrical signal and transmits it to the control console. The control console is embedded with a pressure self-adaptive adjustment algorithm. The algorithm compares the real-time pressure value with the preset tension force threshold value, generates an error signal, and outputs it to the pneumatic telescopic rod. The pneumatic telescopic rod automatically telescopes according to the control command, drives the moving block to change the position of the synchronous roller, adjusts the pressure applied by the synchronous roller on the aluminum material, and keeps the aluminum material tension in the preset range in real time, avoiding relaxation, wrinkles, deviation, and over-tight stretching and breaking.

[0015] 2, the three synchronous rollers are not fixedly installed, but are installed in combination with the moving blocks through the multiple installation grooves opened on the surface of the rotating disc. Each moving block is supported and driven by the pneumatic telescopic rod. The control console automatically controls the telescopic rod to telescope according to the pressure feedback. The moving block drives the roller to change the position in the radial direction slightly, realizing the dynamic adjustment of the contact pressure and position of the synchronous roller on the aluminum material. The three synchronous rollers form an S-shaped material path with a reasonable wrapping angle. Through the fine adjustment of the three independent pressure channels, the stress state of each synchronous roller can be self-adaptively adjusted, ensuring that the aluminum material can obtain uniform tension in different running stages and different roll diameters, and further improving the size accuracy and surface quality of subsequent shearing.

[0016] ​The technical solution realizes real closed-loop control through the cooperative work of the pressure sensor and the angle sensor, in combination with the pressure decomposition algorithm and the self-adaptive adjustment algorithm inside the control console. The angle sensor is installed on the rotating shaft of the rotating disc to output the rotating angle θ of the rotating disc in real time; the pressure sensor collects the extrusion force of the synchronous roller in real time. The control console fuses the two data and performs operation, decomposes the oblique extrusion force signal obtained by the pressure sensor into the actual pressure value along the horizontal direction through the pressure decomposition algorithm: Then the is compared with the preset tension force threshold value to generate an error signal, and the pneumatic telescopic rod is adjusted in real time to form a complete input-calculation-output-feedback closed loop. Regardless of the changes of the unwinding speed, the winding diameter or the guide angle, the control console can quickly adjust the position and pressure of the synchronous roller through the fusion calculation of the angle and pressure double signals to realize real-time compensation of the tension under complex working conditions.

[0017] 3. The technical solution sets rotatable rotating discs on both sides of the main body of the shearing machine, and the rotating discs are connected with the servo motor through the rotating shaft and the key. The rotating discs can be actively rotated under the instruction of the control console. Three synchronous rollers are installed in a circular array on the surface of the rotating disc, and the wrapping angle of the three rollers relative to the aluminum material can be adjusted through the rotation of the rotating disc. The control console dynamically calculates the position required for the best wrapping angle according to the angle data fed back by the angle sensor and the extrusion force data fed back by the pressure sensor. When it is detected that the tension deviation cannot be compensated by simply adjusting the pneumatic telescopic rod, an angle adjustment instruction will be sent to the servo motor to change the angle of the rotating disc, optimize the wrapping angle and friction force distribution of the roller to the aluminum material, and make the aluminum material tension more stable, thereby further improving the conveying stability and shearing precision. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The flowchart of the pressure self-adjusting feeding system of the present application; Figure 2 The flowchart of the pressure self-adjusting and decomposition algorithm of the present application; Figure 3 The front view structural schematic diagram of the feeding system of the shearing machine of the present application; Figure 4 The rear view structural schematic diagram of the feeding system of the shearing machine of the present application; Figure 5 The upper view structural schematic diagram of the feeding system of the shearing machine of the present application; Figure 6 The A-A sectional view of the present application Figure 5 ; Figure 7 The B-B sectional view of the present application Figure 5 ; Figure 8 The structural schematic diagram of the rotating disc of the feeding system of the shearing machine of the present application; Figure 9 This is a schematic diagram of the feeding system of the shearing machine feeding system of the present invention.

[0019] The components include: 1. Shearing machine body; 2. Unwinding machine; 3. Control console; 4. Fixed roller; 5. Servo motor; 6. Turntable; 7. Synchronous roller; 8. Mounting slot; 9. Pneumatic telescopic rod; 10. Pressure sensor; 11. Moving block; 12. Mounting hole; 13. Ball bearing; 14. Air pipe; 15. Rotating shaft; 16. Angle sensor; 17. Mounting frame. Detailed Implementation

[0020] 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. Specific Implementation Example 1: like Figures 1 to 9 As shown, this invention proposes a pressure self-regulating feeding system for an aluminum shearing machine based on synchronous rollers, the structure of which and its operation mode are as follows: The system includes a shearing machine body 1, an unwinding machine 2 located on one side of the shearing machine body 1, a fixed roller 4 located in the middle of the shearing machine body 1, servo motors 5 symmetrically arranged on both sides of the shearing machine body 1, a control console 3 located on one side of the servo motors 5, turntables 6 located on both sides inside the shearing machine body 1, a pneumatic telescopic rod 9 mounted on the turntable 6, a moving block 11, a ball bearing 13, a mounting groove 8, a synchronous roller 7, a pressure sensor 10, and an angle sensor 16 mounted on the rotating shaft 15.

[0022] In the pressure self-adjusting feeding system of the synchronous roller-based aluminum material shearing machine, a close cooperative relationship is formed between each component, each component has a clear function and corresponding working principle in the system operation. The unwinding machine 2 first bears the fixing and controlled release of the aluminum coil, the aluminum coil is firmly installed on the reel of the unwinding machine 2 through the expansion shaft, the servo motor 5 on the unwinding machine 2 drives the reel to rotate, and the existing tension control mechanism is arranged between the reel and the support structure of the unwinding machine 2, which always provides an adjustable damping torque during the rotation of the reel, so that the aluminum material is not loose or over-tightened when it is unwound. After the aluminum material is pulled along the preset path into the inside of the shearing machine main body 1, the two oppositely arranged rotating discs 6 are the supporting and adjusting mechanism of the synchronous roller 7, the rotating disc 6 is integrally formed through the rotating shaft 15 and penetrates the inner wall of the shearing machine main body 1, the rotating shaft 15 is key-connected with the servo motor 5 on both sides, the rotating disc 6 can rotate under the drive of the servo motor 5, the surface of the rotating disc 6 is in the shape of a Lely triangle, which has the advantages of circumferential division and high space utilization, is a triangle composed of three circular arcs, has the equal width characteristic, is convenient for uniform distribution and space optimization of the synchronous roller 7, makes the three synchronous rollers 7 be arranged at equal intervals, and is convenient for installing three mounting grooves 8 on the circumferential array, each mounting groove 8 internally installs a set of pneumatic telescopic rod 9 and moving block 11 combination, the pneumatic telescopic rod 9 is equipped with an overload protection valve, which automatically releases pressure when the pressure exceeds the upper limit set by the vertical personnel, preventing the aluminum material from being pulled off or the equipment from being damaged. The pneumatic telescopic rod 9 is connected to the external air source through the air pipe 14. The air pipe 14 is made of high-temperature-resistant silicone material and is checked for aging every six months; the pressure sensor 10 and the angle sensor 16 need to be calibrated every 12 months to ensure measurement accuracy. The pneumatic telescopic rod 9 is responsible for radial expansion under the instruction of the control console 3, driving the moving block 11 to change position, the moving block 11 surface is provided with a mounting hole 12 and internally provided with a ball bearing 13 for low-friction support of the synchronous roller 7, the mounting groove 8 positions of the two rotating discs 6 correspond to the positions of the synchronous rollers 7, forming three pairs of supporting points, so that the three synchronous rollers 7 can realize dynamic position adjustment relative to the aluminum material after fine adjustment of the moving block 11. There is a mounting bracket 17 between the moving block 11 and the pneumatic telescopic rod 9, the three synchronous rollers 7 themselves are passively synchronized to roll under the traction of the aluminum material, generating a traction force on the aluminum material through rolling friction and maintaining tension, when the aluminum material generates a pressing force on the synchronous roller 7, the force is transmitted to the pressure sensor 10 mounted on the mounting bracket 17 between the moving block 11 and the pneumatic telescopic rod 9, the pressure sensor 10 collects the pressing force of the moving block 11 in real time and converts it into an electrical signal feedback to the control console 3. The fixed roller 4 is installed at the top end of the shearing machine main body 1, horizontally arranged, both ends are shaft-connected to the main body, which plays a role in further supporting and guiding the aluminum material, so that the aluminum material enters the shearing area with stable posture without deviation. The angle sensor 16 is installed on the rotating shaft 15 of one side rotating disc 6, which outputs the rotating angle θ of the rotating disc 6 in real time and transmits the data to the control console 3 for subsequent calculation.The control console 3 is the core control unit of the system, which is in line communication with the unwinding machine 2 servo motor 5, the cutting machine servo motor 5, the pneumatic telescopic rod 9, the pressure sensor 10 and the angle sensor 16. During operation, the signal output by the pressure sensor 10 is sampled at high speed, and the collected pressure value is compared and calculated with the preset tension threshold value through the pressure self-adaptive adjustment algorithm. The error signal obtained is output to the pneumatic telescopic rod 9 actuator, so that the position of the moving block 11 is adjusted through the extension and retraction action of the pneumatic telescopic rod 9, and the contact pressure of the synchronous roller 7 on the aluminum material is real-time returned to the preset tension range. At the same time, when the turntable 6 servo motor 5 drives the rotation of the turntable 6, the angle sensor 16 outputs the angle θ in real time. The pressure decomposition algorithm in the control console 3 decomposes and calculates the oblique extrusion force signal collected by the pressure sensor 10, obtains the actual pressure value in the horizontal direction, and then compares it with the preset tension threshold value to generate a new error signal and control the pneumatic telescopic rod 9 for compensation adjustment, so as to ensure that the tension applied by the synchronous roller 7 on the aluminum material is stable in the preset range when the turntable 6 is at any angle. Through the linkage of multiple components, the unwinding machine 2 is responsible for stable feeding, the turntable 6 and the synchronous roller 7 realize aluminum material traction and pressure sensing, the pneumatic telescopic rod 9 is responsible for dynamic adjustment, the pressure sensor 10 and the angle sensor 16 provide real-time data, and the control console 3 performs logical operation and output control instruction according to the collected data. Finally, the stable conveying of the aluminum material in the whole conveying process, the tension self-adaptive adjustment and the state controllable are realized, so as to provide reliable guarantee for the subsequent cutting process.

[0023] The main function of angle sensor 16 is to monitor the rotation angle θ of turntable 6 in real time. Angle sensor 16 is coaxially fixed to the turntable 6 shaft 15 via a high-precision sleeve, using a gapless key connection to ensure no mechanical vibration during measurement. Angle data is transmitted to console 3 via a shielded cable to reduce electromagnetic interference. Console 3 has a built-in sensor fault detection module. The alarm device mainly receives the following key sensor and system status signals as input data through console 3: Pressure sensor 10 data: The sensor collects the extrusion pressure of moving block 11 in real time and converts the pressure signal into an electrical signal, which is then input to console 3 after analog-to-digital conversion. The pressure data includes the current pressure value and the rate of pressure change, facilitating the identification of abnormally high or low pressure states. Angle sensor 16 data: Angle sensor 16 outputs real-time data of the rotation angle θ of turntable 6, which is also input through the data acquisition module of console 3. The angle information is used to calculate pressure decomposition and assist in determining whether the tension is within the normal range. Sensor status signals: These include the sensor's own health status indication, i.e., open circuit, short circuit, over-range alarm, and communication status, providing real-time feedback on whether the sensor is working properly. Actuator feedback signals: Position feedback signals from the pneumatic telescopic rod 9 and servo motor 5 indicate whether the actuators act according to instructions and whether there is any jamming or abnormality. System operating status: Includes the operating status of the console 3 software, communication link status, power supply status, etc., serving as auxiliary inputs to judge the overall health status of the equipment. The alarm device's built-in microprocessor performs real-time monitoring and logical judgment of input data. The specific processing includes: comparing pressure and angle data with preset thresholds to identify whether they exceed the safe range; monitoring sensor status signals, and determining sensor failure by detecting open circuits, short circuits, or abnormal fluctuations; detecting abnormalities in actuator feedback signals, such as prolonged inactivity or abnormal position deviations; judging whether there are software crashes, communication disconnections, or other faults based on the system operating status. When any input indicator abnormally reaches the alarm condition, the alarm device immediately generates an alarm signal. The alarm device outputs alarm information in multiple ways to ensure timely reminders to operators and linkage protection measures: Local audible and visual alarms emit continuous alarm sounds through a buzzer and simultaneously illuminate a red alarm indicator light to prompt on-site operators to pay immediate attention. The console 3 display screen displays alarm prompts. The specific alarm information is displayed on the console 3 touch screen or indication panel, including alarm type, fault component location and recommended operation. Digital signal output triggers external device linkage protection action such as emergency shutdown, gas source cutoff through digital interface. Alarm data packet containing alarm code, timestamp and related sensor real-time value is sent to upper computer and monitoring system through CAN bus or MODBUS protocol, facilitating remote monitoring and data recording. Angle sensor 16 feeds back the rotation angle of rotating disc 6 to console 3, providing accurate rotating disc 6 position information for the system. Angle sensor 16 data is crucial for system pressure regulation. Since the tension of synchronous roller 7 is affected by the rotation angle of rotating disc 6, angle sensor 16 helps console 3 calculate the impact of rotating disc 6 angle change on aluminum material pressure. When rotating disc 6 rotates a certain angle, the contact pressure of aluminum material shifts, and console 3 will use angle sensor 16 data combined with pressure sensor 10 output pressure signal for pressure decomposition, ensuring that even with rotating disc 6 angle change, the system can still adjust synchronous roller 7 tension in real time, maintaining stable aluminum material tension value. When rotating disc 6 rotates, angle sensor 16 provides real-time angle feedback for the system, and console 3 automatically adjusts pneumatic telescopic rod 9 based on angle change, thereby fine-tuning synchronous roller 7 position to ensure that the contact pressure between synchronous roller 7 and aluminum material always remains within the preset tension range. Pneumatic telescopic rod 9 uses proportional electromagnetic valve control, adjusting valve opening through console 3 output analog current signal to achieve fine pressure adjustment. The gas source is processed by pressure regulator and filter to ensure stable pressure and no impurities. The control system uses closed-loop control strategy, providing real-time feedback of telescopic rod position and force value to ensure high response speed and accuracy of telescopic action, thereby achieving accurate adjustment of moving block 11 position and real-time control of synchronous roller 7 contact pressure with aluminum material. Angle sensor 16 feedback ensures accurate pressure regulation at any angle, avoiding tension instability caused by rotating disc 6 angle change. Angle sensor 16 is usually installed on rotating shaft 15 of rotating disc 6, which penetrates the entire shear machine body 1 inner wall, connecting both sides of servo motor 5 and directly driving rotating disc 6 rotation. Angle sensor 16 installed on rotating shaft 15 can directly sense the rotation angle of rotating disc 6 without interference from other mechanical movements, ensuring accurate measurement. Angle sensor 16 provides feedback data by measuring the rotation angle of rotating shaft 15, which is transmitted to console 3 in real time. The angle sensor 16 of the present application can also be a rotary encoder, potentiometer or Hall effect sensor, which obtains rotation angle change through different ways and converts it into an electrical signal to console 3. Angle sensor 16 installed on rotating shaft 15 is synchronized with rotating disc 6 rotation, avoiding interference from other external factors on angle measurement. It can accurately reflect the rotation state of rotating disc 6, making the feedback of angle change and pressure regulation form an accurate closed-loop control.The console 3 uses the rotation angle θ data output by the angle sensor 16, combined with the real-time data of the pressure sensor 10, to perform a pressure decomposition algorithm calculation, decomposing the oblique pressure signal into actual pressure values in the horizontal direction, and adjusting the pneumatic telescopic rod 9 according to these data to ensure that the tension of the synchronous roller 7 is always stable within the preset range. Since the angle sensor 16 can provide high-precision rotation angle data of the turntable 6, it is crucial to the stability of the entire system. Any slight change in angle can affect the tension applied by the synchronous roller 7, and through real-time feedback, the console 3 can accurately adjust the pressure of the synchronous roller 7 during the rotation of the turntable 6, ensuring that the tension of the aluminum material is not disturbed by changes in the angle of the turntable 6. The role of the angle sensor 16 is not only to feedback the angle, but also to improve the adaptability of the entire system to dynamic changes. If the turntable 6 needs to change its angle due to the characteristics of the aluminum material or other operational requirements, the system can adjust in real time according to the data of the angle sensor 16, and the tension of the aluminum material can remain stable at any angle.

[0024] In use, the unwinding machine 2 is fixed to the aluminum roll by the expansion shaft, and is arranged parallel to the shear machine body 1. The rotation of the reel is driven by the servo motor 5 on the unwinding machine 2. The reel forms an adjustable damping torque when rotating through the tension control mechanism, ensuring that the aluminum material is neither too loose nor too tight when released. During operation, the aluminum material is pulled out along the preset path from the outer edge of the reel, and then passes through the three synchronous rollers 7 between the two opposite turntables 6 inside the shear machine. The three synchronous rollers 7 are arranged in a circular array, and their relative positions are upper, middle, and lower. They are installed in the mounting holes 12 of the moving blocks 11 through ball bearings 13. The moving blocks 11 are supported by the pneumatic telescopic rod 9 and fixed in the three mounting slots 8 on the surface of the turntable 6. The surface of the synchronous roller 7 is covered with wear-resistant rubber material, which has high friction coefficient and protects the surface of the aluminum material, preventing scratches or indentations. The hardness of the rubber layer is specially adjusted to ensure sufficient traction while minimizing surface damage. The rubber surface is regularly checked for wear and replaced as needed to maintain stable tension control. The synchronous roller 7 ball bearing 13 adopts a closed sealing structure, pre-filled with high-performance lubricating grease inside, reducing maintenance frequency. It is recommended to perform a lubricating grease supplement check every six months to ensure adequate bearing lubrication and prevent increased friction and abnormal operation due to insufficient lubrication. The bearing temperature and vibration state are regularly checked, and replaced in time if abnormal to ensure long-term stable operation of the equipment. The turntable 6 is in the shape of a Lely triangle, integrally formed with the rotating shaft 15 and penetrating the inner wall of the shear machine body 1, and is keyed to the two servo motors 5. The rotating shaft 15 of one of the turntables 6 is fitted with an angle sensor 16 for real-time output of the rotation angle θ of the turntable 6.

[0025] After passing through the three synchronous rollers 7, the aluminum material continues to pass through the fixed roller 4 located at the top end of the shearing machine body 1. The fixed roller 4 is horizontally installed and connected to the shearing machine body 1 at both ends, which is used to further support and guide the aluminum material, so that the aluminum material enters the shearing area at a stable angle.

[0026] When the system starts, the console 3 as the core control unit first completes the linkage start of the multi-source actuator. The console 3 is internally preset with a start logic. When the operator issues a start instruction through the control interface, the console 3 immediately sends a start signal to the unwinding machine 2 servo motor 5. After receiving the signal, the unwinding machine 2 servo motor 5 drives the reel to start rotating, and the release speed of the aluminum material during the rotation of the reel will not be too fast or too slow, avoiding the occurrence of relaxation, breakage and folding, thereby realizing the stable and controlled output of unwinding. At the same time, the console 3 also sends a synchronous start signal to the servo motor 5 connected to the transmission wheel inside the shearing machine body 1. After the transmission wheel servo motor 5 is started, it drives the transmission wheel to rotate. The transmission wheel and the aluminum material surface realize forward traction through friction, continuously pulling the aluminum material released from the unwinding machine 2 into the shearing machine, forming a stable conveying speed.

[0027] During this process, the rotation speeds of the unwinding machine 2 servo motor 5 and the transmission wheel servo motor 5 are coordinated in real time by the console 3, so as to keep the unwinding speed and the transmission wheel winding speed accurate and synchronous. Through this linkage control, the unwinding machine 2 continuously releases the aluminum material in a controlled state, and the transmission wheel provides a constant traction force, forming a dynamic balance system, which ensures that the aluminum material is stable in tension and smooth in conveying during transmission, without slipping, piling up and breaking, laying a reliable foundation for the subsequent tension adjustment of the synchronous roller 7 and shearing operation. When the aluminum material is conveyed stably, it will pass through the three synchronous rollers 7 in the middle of the turntable 6. The aluminum material passes through the bottom synchronous roller 7, the middle synchronous roller 7 and the top synchronous roller 7 in sequence, and finally passes through the fixed roller 4. Specifically, after the aluminum material is released from the unwinding machine 2, it first passes through the bottom synchronous roller 7, then passes through the middle synchronous roller 7, and finally passes through the top synchronous roller 7, forming an "S" shape. The fixed roller 4 and the transmission wheel of the shearing machine body 1 are in a horizontal state, so that the transmission wheel can pull the aluminum material smoothly through the shearing area of the shearing machine. When the aluminum material is conveyed, the three synchronous rollers not only can fixedly support the aluminum material, but also can generate traction when the aluminum material is conveyed, so that the three synchronous rollers 7 are passively synchronized to roll under the traction of the aluminum material. When the aluminum material pulls the synchronous roller 7, the extrusion force generated by the aluminum material on the three synchronous rollers 7 is transmitted to the pressure sensor 10 through the moving block 11, and the pressure sensor 10 transmits the detected pressure signal to the console 3 in real time.

[0028] The console 3 is embedded with a pressure self-adaptive adjustment algorithm and a pressure decomposition algorithm, which are developed based on C language and run on an embedded real-time operating system. The console 3 adopts a 32-bit embedded microcontroller, is equipped with X MB flash memory and Y MB RAM, and supports a real-time operating system to realize multi-thread concurrent processing. The software part runs a self-developed control logic program, including pressure sampling, angle calculation, tension error judgment, and actuator driving, and adopts a modular design for subsequent maintenance and upgrade. The system supports CAN bus and MODBUS industrial standard communication protocol, and can realize high-speed and stable communication with the upper computer, sensors, and servo driver peripheral devices. The CAN bus is used for high-speed data transmission of the pressure sensor 10 and the angle sensor 16, and the MODBUS protocol is used for data interaction with the upper computer or external devices. The data sampling period of the console 3 for the pressure sensor 10 and the angle sensor 16 is dynamically adjusted according to the aluminum material conveying speed and material characteristics, and can be adaptively adjusted according to the material type and operating conditions to ensure that the system can still achieve high-precision and high-response-speed tension control under high-speed aluminum material conveying and complex state changes. All calculation processes are completed independently on the local end without relying on external servers, ensuring the independent operation ability and anti-interference ability of the system in the industrial field. The console 3 samples the pressure data output by the pressure sensor 10 at a high speed, and the tension threshold value can be manually set through the control interface or automatically learned and optimized according to historical operation data and material characteristics to adapt to the tension requirements of different batches of aluminum materials. According to the preset tension threshold value and pressure change trend, the pressure error between the synchronous roller 7 and the aluminum material is calculated, and an error signal is generated and output to the pneumatic telescopic rod 9 actuator as a regulation parameter. After obtaining the command, the pneumatic telescopic rod 9 performs telescopic action, drives the moving block 11 to adjust the position, and thus drives the synchronous roller 7 to change the contact pressure with the aluminum material along the radial direction, so that the tension of the synchronous roller 7 on the aluminum material is real-time returned to the preset range, realizing closed-loop regulation of the tension.

[0029] During the operation process, when the turntable 6 rotates under the driving of the servo motor 5, the angle sensor 16 detects the rotation angle θ of the turntable 6 in real time and feeds back the data to the console 3. The pressure decomposition algorithm in the console 3 decomposes the oblique extrusion force signal collected by the pressure sensor 10 to obtain the actual pressure value in the horizontal direction, compares the actual pressure value with the preset tension threshold value, generates a new error signal, and drives the pneumatic telescopic rod 9 to adjust the position of the synchronous roller 7 again, realizing tension compensation control under different angles of the turntable 6 and ensuring the stability of the aluminum material tension.

[0030] In the entire system, the unwinding machine 2, the shearing machine body 1, two servo motors 5, the turntable 6, the synchronous roller 7, the moving block 11, the pneumatic telescopic rod 9, the pressure sensor 10, and the angle sensor 16 form a highly efficient closed-loop control network through the control console 3. The unwinding machine 2 is responsible for the controlled release of the aluminum material. The synchronous roller 7 of the shearing machine pulls the aluminum material through friction and adjusts the tension through pressure feedback. The angle sensor 16 provides angle feedback to the turntable 6, the pressure sensor 10 provides real-time pressure data, and the control console 3 samples and processes the signals from each channel, outputting execution signals to the pneumatic telescopic rod 9 and the servo motors 5 to achieve real-time system adjustment.

[0031] The system control logic employs the following decision-making steps: Sp1: Acquire the real-time angle θ of turntable 6 output by angle sensor 16; Sp2: Decompose the oblique extrusion pressure signal output by pressure sensor 10 to obtain the actual pressure value along the horizontal direction; Sp3: Compares the actual pressure value with the preset tension threshold and generates an error signal; Sp4: Control the extension and retraction length of the pneumatic telescopic rod 9 according to the error signal, and dynamically adjust the tension of the synchronous roller 7 to keep the tension stable within the preset range.

[0032] The input terminal of the control console 3 receives data from the angle sensor 16 and the pressure sensor 10 in real time. The internal algorithm module performs real-time calculations and logical judgments on the data. The output terminal converts the calculation results into control commands to drive the pneumatic telescopic rod 9 and the servo motor 5 to perform actions, realizing a fully closed-loop operation of input-calculation-output. Specific Implementation

[0033] like Figures 1 to 9 As shown, based on the content of the above specific embodiments, the following content is further disclosed: The tension adjustment process in this technical solution is a closed-loop control system centered on the control console 3. The unwinding machine 2 continuously releases aluminum material, and the shearing machine pulls the aluminum material forward through the synchronous rollers 7; the control console 3 collects pressure and angle data in real time, determines whether to adjust solely through the pneumatic telescopic rod 9 based on the pressure deviation, and, if necessary, coordinates with the turntable 6 for position correction.

[0034] Turntable 6 remains stationary during normal operation. Only when control console 3 determines that simple roller fine-tuning is insufficient to return the tension to the set value will it drive servo motor 5 to rotate turntable 6 at a certain angle. This increases or decreases the wrapping angle of the aluminum material and changes the force direction of the synchronous roller 7, making tension control more diverse and precise. The wrapping angle is the arc range of the contact area between the aluminum material and the synchronous roller 7.

[0035] Data acquisition and input processing: pressure sensor 10 input: pressure sensor 10 is installed between the moving block 11 and the pneumatic telescopic rod 9. Real-time acquisition of the synchronous roller 7 received aluminum extrusion force. The original signal is oblique pressure . The collected data is filtered, anti-interference and numerical smoothing by the input processing module of the console 3, and the stable pressure signal is obtained.

[0036] Angle sensor 16 input: angle sensor 16 is installed at the joint of rotating disc 6 rotating shaft 15. When the rotating disc 6 is stationary, the angle Keep fixed value; when the rotating disc 6 is controlled to rotate, the angle sensor 16 real-time acquisition and feedback current angle change. The console 3 judges the current posture of the rotating disc 6 through the signal, so as to accurately decompose the oblique pressure.

[0037] Pressure decomposition algorithm: since the synchronous roller 7 is installed with the rotating disc 6, the extrusion force obtained by the pressure sensor 10 is the oblique component, which needs to be calculated in the horizontal direction. The specific working steps are as follows: Sp1: get the real-time angle of rotating disc 6 . The console 3 calls the angle sensor 16 data to get the current angle When the rotating disc 6 is stationary, Keep initial calibration value, when the rotating disc 6 rotates, Real-time update.

[0038] Sp2: decompose the oblique pressure signal. The console 3 uses cosine decomposition method to project the oblique pressure obtained by the pressure sensor 10 to the horizontal direction: The obtained Is the actual horizontal direction pressure value of the synchronous roller 7 on the aluminum material.

[0039] : oblique pressure: the original extrusion force directly collected by the pressure sensor 10. Because the synchronous roller 7 is installed on the rotating disc 6, when the rotating disc 6 has angle, this force is not completely horizontal on the aluminum material, it is an oblique force. Unit: Newton N. : rotating disc 6 angle: the current rotating angle of rotating disc 6 measured by angle sensor 16. When the rotating disc 6 is stationary It is the initial set angle; when the rotating disc 6 rotates Real-time change, used for force decomposition. Unit: degree ° and radian rad, commonly used in algorithm. : horizontal direction pressure: through the pressure decomposition algorithm from F o ​​The actual pressure value in horizontal direction calculated by the system, which reflects the actual pressing force of the synchronous roller 7 on the aluminum material. Used for subsequent tension judgment and adjustment. Unit: Newton N.

[0040] Pressure adaptive adjustment algorithm: keep the actual tension within the preset tension range , and try to approach the target tension .

[0041] Sp3: judgment and error calculation. The control console 3 compares the calculated with to get the error value: ; If , it means the tension is too small; if , it means the tension is too large; if , it means the tension is within the normal range. : target pressure: the ideal pressure value preset by the control console 3, which is the actual pressure of the synchronous roller 7 on the aluminum material. It is the reference value for system control and is used for error calculation. Unit: Newton N. : pressure error: the difference between the actual pressure and the target pressure. : minimum allowable pressure: the lower limit of the pressure set by the control console 3. The actual pressure cannot be lower than this value, otherwise it will be considered as insufficient tension. Unit: Newton N. : maximum allowable pressure: the upper limit of the pressure set by the control console 3. The actual pressure cannot be higher than this value, otherwise it will be considered as excessive tension. Unit: Newton N.

[0042] Sp4: multi-level adjustment logic: the control console 3 decides the adjustment method according to the error value: First level adjustment: fine tuning. When the error is within the allowed small range set threshold , the control console 3 only adjusts the position of the synchronous roller 7 through the pneumatic telescopic rod 9 to fine tune the contact pressure of the roller with the aluminum material.

[0043] : issue "lengthen" command, the pneumatic telescopic rod 9 pushes the moving block 11 to make the roller closer to the aluminum material. : issue "shorten" command, the pneumatic telescopic rod 9 makes the roller slightly away from the aluminum material.

[0044] Second level adjustment: auxiliary adjustment of the turntable 6. When the error persists and exceeds the threshold set threshold , it means that the ideal tension cannot be achieved by adjusting the roller position alone. At this time, the control console 3 issues a rotation command to the servo motor 5 of the turntable 6, making the turntable 6 rotate at a certain angle Rotation, change the wrapping angle of the synchronous roller 7 to the aluminum material, redistribute the tension direction and friction. While the turntable 6 is rotating, the control console 3 continues to collect angle data and update the pressure decomposition calculation, making subsequent adjustments more accurate. After the turntable 6 is adjusted, the control console 3 collects angle data again With , recalculate and error , if the error is reduced to within the threshold, stop the turntable 6 action, maintain the new posture.

[0045] : Error threshold: a range of allowable errors set internally by the control console 3, used to determine which layer of adjustment to use. : Turntable 6 adjustment angle change: When the turntable 6 needs to assist in adjustment, the control console 3 sends an angle change command to the turntable 6 servo motor 5. By rotating the turntable 6 by a certain angle to change the roller action angle. Unit: degrees °.

[0046] System determination scheme: When the system is running, the control console 3 continuously performs the following determinations: Angle monitoring: Real-time determination of the turntable 6 angle whether to change, and as a parameter for pressure decomposition calculation. Pressure error determination: compare and , get error . Adjustment strategy determination: when : only adjust the pneumatic telescopic rod 9; when : joint turntable 6 rotation for further adjustment. State feedback: after the adjustment action is executed, the pressure and angle data are collected again, the error is updated, and the next round of adjustment is entered.

[0047] Input and output and data flow: input: oblique pressure signal from pressure sensor 10; turntable 6 angle signal from angle sensor 16. Internal processing: pressure decomposition algorithm processing and , calculate ; pressure self-adaptive adjustment algorithm compares and , get error and determine the adjustment strategy. Output: output extension command to pneumatic telescopic rod 9, analog and switch; output rotation command to turntable 6 servo motor 5, angle control signal; the action of the two actuators feedbacks back to the aluminum material tension, forming a closed loop.

[0048] In the technical solution, the turntable 6 serves as an auxiliary adjusting unit, and only intervenes when the pure synchronous roller 7 pressure adjustment cannot meet the target tension, so as to realize wider range and more flexible tension control by changing the roller acting angle. The control console 3 cooperates with the pressure decomposition algorithm and the pressure self-adaptive adjusting algorithm, collects data in real time, calculates errors, determines adjusting strategies and issues execution instructions, forms a closed-loop control logic of input, calculation, output and feedback, so that the tension of the aluminum material in the whole conveying process is always stabilized in the preset range, and the accuracy and reliability of the subsequent shearing process are ensured.

[0049] It should be noted that, in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply these entities or operations have any such actual relationship or order. Also, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "comprises a reference structure" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0050] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pressure-adjustable feeding system for an aluminum shearing machine based on synchronous rollers, comprising a shearing machine body (1), characterized in that: A winding machine (2) is provided on one side of the shearing machine body (1). A fixed roller (4) is provided in the middle of the shearing machine body (1). Servo motors (5) are provided on both sides of the shearing machine body (1). A control console (3) is provided on one side of the servo motor (5) on one side of the shearing machine body (1). Two turntables (6) are provided at the bottom of the fixed roller (4). Three mounting grooves (8) are provided on the surface of each of the two turntables (6). A rotating shaft (15) is provided on the other side of each of the two turntables (6). Pneumatic telescopic rods (9) are provided inside the three mounting grooves (8) on the surface of each of the two turntables (6). Each of the pneumatic telescopic rods (9) has a moving block (11) at one end, an air pipe (14) on one side of each pneumatic telescopic rod (9), a mounting bracket (17) in the middle of the moving block (11) and the pneumatic telescopic rod (9), a pressure sensor (10) on the surface of the mounting bracket (17), a mounting hole (12) on the surface of the moving block (11), a ball bearing (13) inside the mounting hole (12), three synchronous rollers (7) in the middle of the two turntables (6), and an angle sensor (16) on the inner wall surface of the shearing machine body (1).

2. The pressure self-regulating feeding system for an aluminum shearing machine based on synchronous rollers according to claim 1, characterized in that: The shearing machine body (1) is parallel to the unwinding machine (2). The fixed roller (4) is located on the top of the shearing machine body (1) near the unwinding machine (2), and both ends of the fixed roller (4) are axially connected to the shearing machine body (1). The two servo motors (5) are mirror images of the shearing machine body (1) and are bolted to the shearing machine body (1). The two servo motors (5) are located at the bottom of the fixed roller (4). The two servo motors (5), the angle sensor (16), and the unwinding machine (2) are all connected to the control console (3) via wiring.

3. The pressure self-regulating feeding system for an aluminum shearing machine based on synchronous rollers according to claim 1, characterized in that: The two turntables (6) are installed in a mirror image on the inner walls of the shearing machine body (1) on both sides, and the positions of the turntables (6) correspond one-to-one with the positions of the servo motors (5). The two rotating shafts (15) are integrally formed with the turntables (6), and the rotating shafts (15) penetrate the inner wall of the shearing machine body (1) and are keyed to the servo motors (5). The rotating shafts (15) are axially connected to the shearing machine body (1), and the rotating shaft (15) on one side of the turntable (6) is sleeved with the angle sensor (16). The angle sensor (16) is bolted to the shearing machine body (1).

4. The pressure self-regulating feeding system for an aluminum shearing machine based on synchronous rollers according to claim 1, characterized in that: The two turntables (6) are in the shape of a Reno triangle, and three mounting slots (8) are arranged in a circular array on the surface of the two turntables (6). The pneumatic telescopic rods (9) inside the mounting slots (8) are all bolted to the turntables (6). The bottom surface of the mounting frame (17) is mounted on the top surface of the pneumatic telescopic rod (9), and the top surface of the mounting frame (17) is mounted on the bottom surface of the moving block (11). The pneumatic telescopic rod (9), the mounting frame (17) and the moving block (11) are bolted together. The pressure sensors (10) are all mounted on the mounting frame (17), and the pressure sensors (10) are threaded to the mounting frame (17). One end of each pressure sensor (10) abuts against the moving block (11). The moving block (11) is connected to the pneumatic telescopic rod (9) through the mounting frame (17).

5. The pressure self-regulating feeding system for an aluminum shearing machine based on synchronous rollers according to claim 1, characterized in that: One end of each air pipe (14) passes through the turntable (6) and is connected to the pneumatic telescopic rod (9) pipe inside the mounting groove (8) on the surface of the turntable (6). The air pipe (14) is made of silicone material. The ball bearings (13) inside the mounting holes (12) on the surface of the moving block (11) are engaged with the moving block (11). The positions of the three synchronous rollers (7) between the two turntables (6) correspond one-to-one with the positions of the moving blocks (11) inside the three mounting grooves (8) on the surface of the turntable (6). Both ends of the synchronous rollers (7) are inserted into the ball bearings (13) inside the mounting holes (12) on the surface of the moving block (11).

6. The pressure self-regulating feeding system for an aluminum shearing machine based on synchronous rollers according to claim 1, characterized in that: The synchronous roller (7) is installed in the ball bearing (13) of the moving block (11) in the mounting groove (8) on the surface of the turntable (6). The pneumatic telescopic rod (9) is connected to the moving block (11) through the mounting bracket (17) and is located inside the mounting groove (8). The control console (3) is electrically connected to the pneumatic telescopic rod (9). The pneumatic telescopic rod (9) can drive the moving block (11) and the synchronous roller (7) to change their radial position.

7. The pressure self-regulating feeding system for an aluminum shearing machine based on synchronous rollers according to claim 1, characterized in that: The control console (3) has a built-in pressure adaptive adjustment algorithm and pressure decomposition algorithm. The algorithm includes: sampling the pressure signal output by the pressure sensor (10) in real time, calculating the pressure error value between the current synchronous roller (7) and the aluminum material based on the preset tension threshold and pressure change trend, and making the pressure error value approach zero by controlling the extension stroke of the pneumatic telescopic rod (9). This is used for closed-loop control of the tension force of the synchronous roller (7) on the aluminum material. The pressure adaptive adjustment algorithm and the pressure decomposition algorithm work together.

8. The pressure self-regulating feeding system for an aluminum shearing machine based on synchronous rollers according to claim 1, characterized in that: When the servo motor (5) drives the turntable (6) to rotate, the angle sensor (16) outputs the rotation angle θ of the turntable (6) in real time, so that the synchronous roller (7), pressure sensor (10) and pneumatic telescopic rod (9) are in an oblique state. The extrusion force detected by the pressure sensor (10) is an oblique extrusion force. The control console (3) calculates the original pressure value along the horizontal direction according to the angle θ provided by the angle sensor (16), and readjusts the extension stroke of the pneumatic telescopic rod (9) accordingly for the compensation control of the position of the synchronous roller (7). The pressure decomposition algorithm provides the horizontal pressure value for the pressure adaptive adjustment algorithm. This serves as the basis for tension regulation.

9. The pressure self-regulating feeding system for an aluminum shearing machine based on synchronous rollers according to claim 1, characterized in that: The pressure decomposition algorithm and the pressure adaptive adjustment algorithm in the control console (3) work together to form a composite control logic, the steps of which include: Sp1, Obtain the real-time angle θ of the turntable (6) output by the angle sensor (16); Sp2. Based on the angle θ, the oblique extrusion force signal output by the pressure sensor (10) is decomposed and calculated to obtain the actual pressure value originally along the horizontal direction. ; Sp3. Compare the actual horizontal pressure value with the preset tension threshold and generate an error signal; Sp4. Adjust the extension length of the pneumatic telescopic rod (9) based on the error signal, dynamically adjust the tension of the synchronous roller (7) on the aluminum material, and stabilize the tension within the preset range. This is used for real-time adaptive adjustment of the conveying tension of the aluminum material by the turntable (6) at different angles.

Images