Vibration suppression module, dynamic deviation correction system and method for high-speed lamination of battery pole pieces

Abstract

The invention discloses a vibration suppression module and a dynamic deviation correction system and method for high-speed lamination of battery pole pieces, and belongs to the technical field of battery manufacturing, the dynamic deviation correction system comprises a lamination table, the vibration suppression module, a lamination hand and an unwinding roller, a spring buffer structure and a magnetic module are arranged at the two ends of the lamination table, the vibration suppression modules are arranged at the two ends of the reciprocating motion track of the lamination table, each vibration suppression module comprises a first trigger switch, an electromagnetic module and a second trigger switch, primary speed reduction is carried out through spring buffering, accurate positioning and hard contact triggering are achieved through electromagnetic adsorption, and the vibration suppression modules are arranged on the two ends of the reciprocating motion track of the lamination table. The vibration of the lamination table in place at a high speed is effectively inhibited, and meanwhile, the system integration two-way communication module and the control computer perform real-time error compensation by comparing time position coordinates fed back by the lamination table in real time with a preset track to form closed-loop dynamic deviation correction, so that the positioning precision, the stability and the production efficiency in the high-speed lamination process are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of battery manufacturing technology, and more specifically, to a vibration suppression module, dynamic correction system, and method for high-speed stacking of battery electrodes. Background Technology

[0002] In the manufacturing process of lithium-ion batteries, the Z-shaped stacking process is one of the key technologies for constructing the multi-layer structure of "positive electrode, separator, negative electrode, separator" inside the cell. The principle is that the stacking table carries the separator and moves back and forth, and the stacking operator alternately places the positive and negative electrode sheets on the separator of the stacking table. With the continuous improvement of the requirements for battery energy density and production efficiency, the stacking speed is increasing day by day.

[0003] However, high speed brings significant technical challenges: First, when the stacking stage moves to the endpoint at high speed, the inertia will generate huge impacts and vibrations, resulting in poor equipment stability, reduced positioning accuracy, increased mechanical wear, and even damage to the electrode or diaphragm. Second, traditional positioning methods, such as pure servo motor positioning, are prone to overshoot and cumulative errors under high-speed start-stop conditions, making it difficult to meet the extreme requirements of interlayer alignment accuracy in the stacking process. These factors seriously restrict the further improvement of stacking efficiency and the consistency of product quality. Therefore, there is an urgent need for a system and method that can effectively suppress high-speed vibration and achieve high-precision dynamic correction. Summary of the Invention

[0004] In order to solve the problems mentioned in the background art, the purpose of this invention is to overcome the shortcomings of the prior art and provide a vibration suppression module, dynamic correction system and method for high-speed stacking of battery electrodes, so as to solve the problems of large vibration and difficulty in ensuring positioning accuracy when the stacking table is running at high speed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: In one aspect, the present invention provides a dynamic correction system for high-speed stacking of battery electrode sheets, comprising two stacking stations. The technical solution of the present invention further includes a stacking table, a vibration suppression module, a stacking hand, an unwinding roller, a control computer, and a two-way communication module. The stacking table is capable of reciprocating between the two stacking stations. The vibration suppression module is respectively disposed at both ends of the reciprocating movement trajectory of the stacking table. The vibration suppression module includes a first trigger switch, an electromagnetic module, and a second trigger switch. The first trigger switch is a non-contact proximity sensor, and the second trigger switch is a contact sensor. The stacking table also has a spring buffer structure and a magnetic module at its two ends. When the stacking table moves to the two stacking stations, the spring buffer structure at its end first contacts the first trigger switch. The first trigger switch is used to control and activate the electromagnetic module. The electromagnetic module generates magnetic force to attract the magnetic module on the stacking table, causing the stacking table to further adhere to the vibration suppression module, thereby causing the stacking table to contact the second trigger switch and trigger the stacking action.

[0006] Furthermore, in the technical solution of the present invention, the stacking hand is disposed at two stacking stations. The stacking hand is used to place battery electrodes on the stacking table. The stacking hand is triggered to perform the stacking action by contacting the second trigger switch through the stacking table. The unwinding roller is used to provide a diaphragm to the stacking table. Furthermore, in the technical solution of the present invention, the control computer is signal-connected to the stacking table and the vibration suppression module. The trigger signal of the first trigger switch is transmitted to the control computer. After receiving the trigger signal of the first trigger switch, the control computer controls the activation of the electromagnetic module to generate magnetism. The trigger signal of the second trigger switch is transmitted to the control computer. The control computer uses the trigger signal of the second trigger switch as the control signal for the corresponding stacking hand to start stacking, thereby controlling the corresponding stacking hand to start stacking. Furthermore, in the technical solution of the present invention, the bidirectional communication module is used to realize real-time bidirectional communication between the control computer and the stacking stage; wherein, the control computer issues a movement command to the stacking stage through the bidirectional communication module, the movement command including a movement time trajectory set based on the stacking speed, and limiting the contact speed range between the stacking stage and the vibration suppression module; during the movement, the stacking stage sends real-time time and position coordinates to the control computer in real time through the bidirectional communication module; the control computer also generates a corresponding predicted time and position map according to the movement command, and calculates the real-time error based on the received real-time time and position coordinates sent by the stacking stage and the predicted time and position map, and generates a compensation control command, specifically including: calculating the real-time error. , ,in, Represented as The actual location at that moment Represented as The predicted position at the specified time; generating compensation control commands based on the feedforward / feedback composite control algorithm, and calculating the compensation amount. , ,in, For proportional gain, As the differential gain, the compensation control command is sent to the stacking stage through the bidirectional communication module to correct the motion trajectory of the stacking stage in real time.

[0007] In another aspect, this invention provides a dynamic correction method for high-speed stacking of battery electrodes, employing a dynamic correction system for high-speed stacking of battery electrodes as described above, specifically including the following steps: S1, the control computer issues a movement command to the stacking station to move from one of the two stacking stations to the other, and generates a predicted time position map corresponding to the movement command; S2, the stacking station moves according to the movement command, and during the movement, it feeds back the real-time time position coordinates to the control computer in real time through a two-way communication module; S3, the control computer compares the received real-time time position coordinates with the predicted time position map, calculates the real-time error, and generates a compensation control command based on the real-time error and sends it to the stacking station to monitor the movement trajectory of the stacking station. S4. When the stacking stage approaches the target stacking station, the spring buffer structure at its end contacts the first trigger switch of the vibration suppression module, triggering the first trigger switch; S5. The trigger signal of the first trigger switch is transmitted to the control computer. After receiving the trigger signal of the first trigger switch, the control computer controls the activation of the electromagnetic module to generate magnetism; S6. The electromagnetic module generates magnetic force to attract the magnetic module on the stacking stage, so that the stacking stage overcomes the buffer force of the spring buffer structure and moves smoothly until it contacts the second trigger switch, triggering the second trigger switch; S7. The trigger signal of the second trigger switch is transmitted to the control computer. The control computer uses the trigger signal of the second trigger switch as the control signal for the corresponding stacking hand to start stacking, controlling the corresponding stacking hand to start stacking.

[0008] Beneficial Effects: In summary, this invention provides a vibration suppression module, dynamic correction system, and method for high-speed stacking of battery electrodes. Compared with existing technologies, this invention achieves precise mechanical positioning through a combination of electromagnetic adsorption and hard triggering, resulting in high repeatability and overcoming the overshoot and cumulative error problems of pure servo systems. Simultaneously, this invention employs a two-stage effect of spring buffering and electromagnetic adsorption to smoothly absorb the enormous inertial kinetic energy of high-speed motion, significantly reducing equipment vibration and noise, and improving equipment stability and lifespan. Furthermore, this invention achieves active correction during motion through high-speed bidirectional communication and real-time trajectory tracking compensation, enhancing the system's adaptability and accuracy consistency at high speeds.

[0009] Other features and advantages of the present invention will be set forth in the following description. Attached Figure Description

[0010] To more clearly illustrate the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of a dynamic bias correction system for high-speed stacking of battery electrodes according to an embodiment of the present invention. Figure 1 ;

[0012] Figure 2 This is a schematic diagram of a dynamic bias correction system for high-speed stacking of battery electrodes according to an embodiment of the present invention. Figure 2 ;

[0013] Figure 3 A flowchart illustrating a dynamic correction method for high-speed stacking of battery electrodes according to an embodiment of the present invention;

[0014] In the diagram: A, stacking table; A01, spring buffer structure; A02, magnetic module; B, vibration suppression module; B01, first trigger switch; B02, electromagnetic module; B03, second trigger switch; C, stacking hand; D, unwinding roller. Detailed Implementation

[0015] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0016] To address the problems mentioned in the background section, this embodiment provides a vibration suppression module, a dynamic correction system, and a method for high-speed stacking of battery electrodes, thereby solving the problems of large vibrations and difficulty in ensuring positioning accuracy when the stacking table is running at high speed.

[0017] Figure 1 and Figure 2 This is a schematic diagram of a dynamic bias correction system for high-speed stacking of battery electrodes according to an embodiment of the present invention, as shown below. Figure 1 and Figure 2As shown, this embodiment provides a dynamic correction system for high-speed stacking of battery electrodes. This system includes two stacking stations, a stacking table A, and a vibration suppression module B. The stacking table A can reciprocate between the two stacking stations. The vibration suppression module B is located at both ends of the reciprocating trajectory of the stacking table A. The vibration suppression module B includes a first trigger switch B01, an electromagnetic module B02, and a second trigger switch B03. The first trigger switch B01 is a non-contact proximity sensor, including a photoelectric proximity switch, and the second trigger switch B03 is a contact sensor, including a mechanical micro-switch or a pressure sensor. Specifically, the stacking stage A is equipped with a spring buffer structure A01 and a magnetic module A02 at both ends. When the stacking stage A moves to the two stacking stations, the spring buffer structure A01 at its end first contacts the first trigger switch B01. The first trigger switch B01 is used to control and activate the electromagnetic module B02. The electromagnetic module B02 is used to generate magnetic force to attract the magnetic module A02 on the stacking stage A, so that the stacking stage A is further attracted to the vibration suppression module B, so that the stacking stage A contacts the second trigger switch B03 and triggers the stacking action. That is, this embodiment achieves mechanical precision limiting by combining the electromagnetic attraction of the electromagnetic module B02 and the magnetic module A02 with the hard triggering of the second trigger switch B03. The repeatability is high, which helps to overcome the overshoot and cumulative error problems of pure servo systems. Specifically, in this embodiment, it also includes a stacking hand C and an unwinding roller D. The stacking hand C is located at two stacking stations and is used to place battery electrodes onto the stacking table A. The stacking hand C is triggered to perform the stacking action by contacting the second trigger switch B03 through the stacking table A. The unwinding roller D is used to provide a diaphragm to the stacking table A. Specifically, in this embodiment, it also includes a control computer, which is signal-connected to the stacking table A and the vibration suppression module B. The trigger signal of the first trigger switch B01 is transmitted to the control computer. After receiving the trigger signal of the first trigger switch B01, the control computer controls the activation of the electromagnetic module B02 to generate magnetism. The trigger signal of the second trigger switch B03 is transmitted to the control computer. The control computer uses the trigger signal of the second trigger switch B03 as the control signal for the corresponding stacking hand C to start stacking, thereby controlling the corresponding stacking hand C to start stacking. Specifically, in this embodiment, a two-way communication module is also included. The two-way communication module is used to realize real-time two-way communication between the control computer and the stacking stage A. The control computer issues movement commands to the stacking stage A through the two-way communication module. The movement commands include a movement time trajectory set based on the stacking speed and limit the contact speed range between the stacking stage A and the vibration suppression module B. During the movement, the stacking stage A sends real-time time and position coordinates to the control computer in real time through the two-way communication module.

[0018] The control computer also generates a corresponding projected time position map based on the movement command, and calculates the real-time error by comparing the received real-time time position coordinates sent by the stacking stage A with the projected time position map, and generates compensation control commands, specifically including:

[0019] Calculate real-time error , ,in, Represented as The actual location at that moment Represented as The predicted position at a given time; a compensation control command is generated based on the feedforward / feedback composite control algorithm, and the compensation amount is calculated using a proportional-derivative controller or a fuzzy PID controller. The control law can be simplified to calculating the compensation amount. for: ,in, This is the proportional gain, used to quickly reduce the current error. The differential gain is used to suppress overshoot and oscillations, and improve stability. The rate of change of error is represented as the predicted trend; then, the compensation control command is sent to the stacking stage A through the bidirectional communication module to correct the motion trajectory of the stacking stage A in real time. That is, in this embodiment, through the high-speed bidirectional communication of the bidirectional communication module and the real-time trajectory tracking compensation between the control computer and the stacking stage A, active correction of the stacking stage A during its movement is realized, which improves the adaptability and accuracy consistency of the battery electrode stacking system at high speed.

[0020] Figure 3 This is a flowchart of a dynamic correction method for high-speed stacking of battery electrodes according to an embodiment of the present invention, as shown below. Figure 3As shown, this embodiment also provides a dynamic correction method for high-speed stacking of battery electrodes, employing a dynamic correction system for high-speed stacking of battery electrodes as described above, specifically including the following steps: S1, the control computer issues a movement command to the stacking station A to move from one of the two stacking stations to the other, and generates a predicted time position map corresponding to the movement command; S2, the stacking station A moves according to the movement command, and during the movement, it feeds back the real-time time position coordinates to the control computer in real time through a two-way communication module; S3, the control computer compares the received real-time time position coordinates with the predicted time position map, calculates the real-time error, and generates a compensation control command based on the real-time error and sends it to the stacking station A to correct the movement trajectory of the stacking station A in real time; S4, the stacking station A approaches the target stacking station... When in position, the spring buffer structure A01 at the end of the structure contacts the first trigger switch B01 of the vibration suppression module B, triggering the first trigger switch B01; S5, the trigger signal of the first trigger switch B01 is transmitted to the control computer. After receiving the trigger signal of the first trigger switch B01, the control computer controls the activation of the electromagnetic module B02 to generate magnetism; S6, the electromagnetic module B02 generates magnetic force to attract the magnetic module A02 on the stacking stage A, so that the stacking stage A overcomes the buffer force of the spring buffer structure A01 and moves smoothly until it contacts the second trigger switch B03, triggering the second trigger switch B03; S7, the trigger signal of the second trigger switch B03 is transmitted to the control computer. The control computer uses the trigger signal of the second trigger switch B03 as the control signal for the corresponding stacking hand C to start stacking, controlling the corresponding stacking hand C to start stacking.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dynamic alignment system for high-speed stacking of battery electrodes, comprising two stacking stations, characterized in that, Also includes: A stacking stage (A) is capable of reciprocating between two stacking stations. A vibration suppression module (B) is respectively disposed at both ends of the reciprocating movement trajectory of the stacking stage (A). The vibration suppression module (B) includes a first trigger switch (B01), an electromagnetic module (B02), and a second trigger switch (B03). The stacking stage (A) is further provided with a spring buffer structure (A01) and a magnetic module (A02) at its two ends. When the stacking stage (A) moves to the two stacking stations, the spring buffer structure (A01) at its end first contacts the first trigger switch (B01). The first trigger switch (B01) is used to control and activate the electromagnetic module (B02). The electromagnetic module (B02) generates magnetic force to attract the magnetic module (A02) on the stacking stage (A), causing the stacking stage (A) to further adhere to the vibration suppression module (B), so that the stacking stage (A) contacts the second trigger switch (B03) and triggers the execution of the stacking action.

2. The dynamic alignment system for high-speed stacking of battery electrodes according to claim 1, characterized in that, Also includes: A stacking hand (C) is positioned at both stacking stations and is used to place battery electrodes on the stacking table (A). The stacking action is triggered by the stacking table (A) contacting the second trigger switch (B03). An unwinding roller (D) is used to provide a diaphragm to the stacking table (A).

3. The dynamic alignment system for high-speed stacking of battery electrodes according to claim 2, characterized in that, It also includes: a control computer, which is signal-connected to the stacking stage (A) and the vibration suppression module (B); wherein, the trigger signal of the first trigger switch (B01) is transmitted to the control computer, and after receiving the trigger signal of the first trigger switch (B01), the control computer controls the activation of the electromagnetic module (B02) to generate magnetism; the trigger signal of the second trigger switch (B03) is transmitted to the control computer, and the control computer uses the trigger signal of the second trigger switch (B03) as the control signal for the stacking hand (C) at the corresponding end to start stacking.

4. The dynamic bias correction system for high-speed stacking of battery electrodes according to claim 1, characterized in that, Also includes: A two-way communication module is used to realize real-time two-way communication between the control computer and the stacking stage (A); wherein, the control computer issues a movement command to the stacking stage (A) through the two-way communication module, the movement command includes a movement time trajectory set based on the stacking speed, and limits the contact speed range between the stacking stage (A) and the vibration suppression module (B), and the stacking stage (A) sends real-time time and position coordinates to the control computer in real time through the two-way communication module during the movement.

5. A dynamic bias correction system for high-speed stacking of battery electrodes according to claim 4, characterized in that, The control computer also generates a corresponding estimated time and position map based on the movement command, and calculates the real-time error by comparing the real-time time and position coordinates sent by the stacking stage (A) with the estimated time and position map, and generates a compensation control command to send to the stacking stage (A) through the bidirectional communication module, so as to correct the movement trajectory of the stacking stage (A) in real time.

6. A dynamic bias correction system for high-speed stacking of battery electrodes according to claim 5, characterized in that, Calculating real-time error and generating compensation control commands specifically includes: calculating real-time error , ,in, Represented as The actual location at that moment Represented as The predicted position at a given time; generating compensation control commands based on the feedforward / feedback composite control algorithm, and calculating the compensation amount. , ,in, For proportional gain, This is the differential gain.

7. A dynamic bias correction system for high-speed stacking of battery electrodes according to claim 1, characterized in that, The first trigger switch (B01) is a non-contact proximity sensor, and the second trigger switch (B03) is a contact sensor.

8. A dynamic correction method for high-speed stacking of battery electrodes, employing a dynamic correction system for high-speed stacking of battery electrodes according to any one of claims 1-7, characterized in that, Specifically, the following steps are included: S1. The control computer issues a movement command to the stacking table (A) to move from one of the two stacking stations to the other, and generates a predicted time position diagram corresponding to the movement command; S2. The stacking table (A) moves according to the movement command, and feeds back the real-time time position coordinates to the control computer in real time through the bidirectional communication module during the movement; S3. The control computer compares the received real-time time position coordinates with the predicted time position diagram, calculates the real-time error, and generates a compensation control command based on the real-time error and sends it to the stacking table (A) to correct the movement trajectory of the stacking table (A) in real time; S4. When the stacking table (A) approaches the target stacking station, the spring buffer structure (A01) at its structural end contacts the first trigger switch (B01) of the vibration suppression module (B), triggering the first contact... S5. The trigger signal of the first trigger switch (B01) is transmitted to the control computer. After receiving the trigger signal of the first trigger switch (B01), the control computer controls the activation of the electromagnetic module (B02) to generate magnetism. S6. The electromagnetic module (B02) generates magnetic force to attract the magnetic module (A02) on the stacking stage (A), so that the stacking stage (A) overcomes the buffering force of the spring buffer structure (A01) and moves smoothly until it contacts the second trigger switch (B03), triggering the second trigger switch (B03). S7. The trigger signal of the second trigger switch (B03) is transmitted to the control computer. The control computer uses the trigger signal of the second trigger switch (B03) as the control signal for the corresponding stacking hand (C) to start stacking, and controls the corresponding stacking hand (C) to start stacking.

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