Roller pin control method, controller and computer readable storage medium

Abstract

The application provides a winding needle control method, a controller and a computer readable storage medium, the current angle of the winding needle, the initial angle of the winding needle initially winding the winding material, the thickness of the winding material and the diameter of the winding needle are acquired; the superposition angle of the winding material is determined according to the current angle and the initial angle; the unit incremental thickness of the winding material under a unit angle is calculated according to the thickness of the winding material; the cumulative incremental thickness of the winding material is determined according to the superposition angle and the unit incremental thickness; the overall diameter of the winding needle and the winding material is determined according to the diameter of the winding needle and the cumulative incremental thickness; the target angular velocity of the winding needle is calculated according to the preset linear velocity of the winding needle and the overall diameter, and the winding needle is controlled to wind according to the target angular velocity. The application can calculate the winding diameter size according to the taper superposition of the thickness of the winding material, and then convert the linear velocity into angular velocity, so that the winding needle synchronously follows the angular velocity, the type changing and debugging are convenient, only the thickness of the winding material needs to be changed, a large amount of time is saved, the following speed is stable, and mutations caused by other factors are avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of battery manufacturing, and particularly relates to a winding needle control method, a controller and a computer readable storage medium. BACKGROUND

[0002] In the related art, most of the winding machines in the new energy industry currently adopt a self-learning mode to plan a cam linear speed by learning the shape of a winding needle. However, this mode often has the following disadvantages: in the learning shape process, slow winding is required, and a large amount of time is required for model change and debugging, and the operation convenience is poor. SUMMARY

[0003] The following is a summary of the subject matter described in detail herein. This summary is not intended to limit the scope of the claims.

[0004] The application embodiment provides a winding needle control method, a controller and a computer readable storage medium, which is convenient for model change and debugging, can save a large amount of time, and has strong operation convenience.

[0005] In a first aspect, the application embodiment provides a winding needle control method, comprising:

[0006] obtaining a current angle of a winding needle, an initial angle at which the winding needle initially winds a winding material, a thickness of the winding material, and a diameter of the winding needle;

[0007] determining a superimposed angle of the winding material according to the current angle and the initial angle;

[0008] calculating a unit incremental thickness of the winding material under a unit angle according to the thickness of the winding material;

[0009] determining a cumulative incremental thickness of the winding material according to the superimposed angle and the unit incremental thickness;

[0010] determining an overall diameter of the winding needle and the winding material according to the diameter of the winding needle and the cumulative incremental thickness;

[0011] calculating a target angular velocity of the winding needle according to a preset linear velocity of the winding needle and the overall diameter, and controlling the winding needle to wind according to the target angular velocity.

[0012] In some embodiments, the initial angle includes a first initial angle at which the winding needle initially winds a diaphragm and a second initial angle at which the winding needle initially winds a pole piece; and the determination of the superimposed angle of the winding material according to the current angle and the initial angle comprises:

[0013] performing a difference operation on the current angle and the first initial angle to obtain a first superimposed angle of the diaphragm;

[0014] differencing the current angle and the second initial angle to obtain a second superposition angle of the pole piece.

[0015] In some embodiments, the roll thickness includes a separator thickness, a cathode pole piece thickness, and an anode pole piece thickness; and the calculating the unit incremental thickness of the roll at a unit angle according to the roll thickness includes:

[0016] calculating a first unit incremental thickness of the separator at a unit angle according to the separator thickness;

[0017] calculating a second unit incremental thickness of the pole piece at a unit angle according to the cathode pole piece thickness and the anode pole piece thickness.

[0018] In some embodiments, the separator thickness is calculated to the first unit incremental thickness by a formula: first unit incremental thickness = separator thickness * 4 / 360.

[0019] The cathode pole piece thickness and the anode pole piece thickness are calculated to the second unit incremental thickness by a formula: second unit incremental thickness = (cathode pole piece thickness + anode pole piece thickness) * 2 / 360.

[0020] In some embodiments, the determining the cumulative incremental thickness of the roll according to the superposition angle and the unit incremental thickness includes:

[0021] multiplying the first superposition angle and the first unit incremental thickness to obtain a first cumulative incremental thickness of the separator;

[0022] multiplying the second superposition angle and the second unit incremental thickness to obtain a second cumulative incremental thickness of the pole piece.

[0023] In some embodiments, the determining the overall diameter of the roll needle and the roll according to the roll needle diameter and the cumulative incremental thickness includes:

[0024] adding the roll needle diameter, the first cumulative incremental thickness, and the second cumulative incremental thickness to obtain the overall diameter of the roll needle and the roll.

[0025] In some embodiments, the calculating the target angular velocity of the roll needle according to the preset linear velocity of the roll needle and the overall diameter includes:

[0026] inputting the preset linear velocity and the overall diameter into an arc length formula to obtain the target angular velocity of the roll needle.

[0027] In some embodiments, the arc length formula is as follows: target angular velocity = preset linear velocity / (overall diameter * pi) * 360.

[0028] In a second aspect, the embodiments of the present application further provide a controller, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor executes the computer program to perform the roll needle control method in the first aspect.

[0029] In a third aspect, the embodiments of the present application further provide a computer readable storage medium storing computer executable instructions for performing the roll needle control method in the first aspect.

[0030] The technical solutions of the embodiments of the present application include but are not limited to the following technical effects: first, the embodiments of the present application will obtain the current angle of the roll needle, the initial angle of the roll needle for initially winding the roll material, the thickness of the roll material, and the diameter of the roll needle; then, the embodiments of the present application will determine the superimposed angle of the roll material according to the current angle and the initial angle; then, the embodiments of the present application will calculate the unit incremental thickness of the roll material under a unit angle according to the thickness of the roll material; then, the embodiments of the present application will determine the cumulative incremental thickness of the roll material according to the superimposed angle and the unit incremental thickness; then, the embodiments of the present application will determine the overall diameter of the roll needle and the roll material according to the diameter of the roll needle and the cumulative incremental thickness; finally, the embodiments of the present application will calculate the target angular velocity of the roll needle according to the preset linear velocity of the roll needle and the overall diameter, and control the roll needle to wind according to the target angular velocity. The embodiments of the present application can change the roll diameter according to the taper superposition of the roll material thickness, convert the linear velocity into angular velocity, make the roll needle follow the angular velocity synchronously, and control the roll needle to wind in this speed control mode. The embodiments of the present application are convenient for changing and debugging, only need to change the thickness of the roll material, can save a lot of time, and the followed speed is stable and will not be suddenly changed due to other factors.

[0031] Other features and advantages of the present application will be set forth in the following description, and in part will become apparent to those skilled in the art from the description, or can be learned by practice of the present application. The objects and other advantages of the present application will be realized and achieved by means of the structures particularly pointed out in the description and claims, and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0032] The accompanying drawings are included to provide a further understanding of the technical solutions of the present application, and constitute a part of the specification, and are used together with the embodiments of the present application to explain the technical solutions of the present application, and do not constitute a limitation to the technical solutions of the present application.

[0033] Figure 1 is a schematic diagram of a system architecture platform for performing a roll needle control method provided by an embodiment of the present application;

[0034] Figure 2 is a flow chart of the method for controlling the reel pin according to an embodiment of the present application;

[0035] Figure 3 is a flow chart of the method for controlling the reel pin according to another embodiment of the present application;

[0036] Figure 4 is a flow chart of the method for controlling the reel pin according to another embodiment of the present application;

[0037] Figure 5 is a flow chart of the method for controlling the reel pin according to another embodiment of the present application;

[0038] Figure 6 is a flow chart of the method for controlling the reel pin according to another embodiment of the present application;

[0039] Figure 7 is a flow chart of the method for controlling the reel pin according to another embodiment of the present application;

[0040] Figure 8 is a flow chart of the method for controlling the reel pin according to an embodiment of the present application. DETAILED DESCRIPTION

[0041] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which the same or similar components have the same or similar designations and functions throughout the various figures and embodiments, and the embodiments described below are examples in which the present application can be implemented. The embodiments described below are merely examples for the purpose of explanation only and are not to be construed as limiting the present application.

[0042] In the description of the present application, if the orientation description such as up, down, front, back, left, right, and the like is involved, the orientation or positional relationship shown in the drawings is merely for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or component indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application.

[0043] In the description of the present application, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, more than, and the like are understood as not including the number, above, below, and the like are understood as including the number. If the first, second, and the like are described, they are only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of technical features indicated.

[0044] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0045] In some cases, most winding machines in the new energy industry currently adopt a self-learning method, which learns the shape of the winding needle to plan the cam linear speed. However, this method often has the following drawbacks: slow winding is required during the shape learning process, and a lot of time is required for shape change and debugging, resulting in poor operation convenience.

[0046] Based on the above, embodiments of this application provide a needle winding control method, a controller, and a computer-readable storage medium, which are convenient for changeover and debugging, can save a lot of time, and are highly convenient to operate.

[0047] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0048] like Figure 1 As shown, Figure 1 This is a schematic diagram of a system architecture platform for performing a needle control method according to an embodiment of this application.

[0049] The system architecture platform 100 of this application embodiment includes one or more processors 110 and a memory 120. Figure 1 The example uses a processor 110 and a memory 120.

[0050] Processor 110 and memory 120 can be connected via a bus or other means. Figure 1 Taking the example of a connection between China and Israel via a bus.

[0051] Memory 120, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory 120 may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory 120 may optionally include memory 120 remotely located relative to processor 110, and these remote memories can be connected to the system architecture platform 100 via a network. Examples of such networks include, but are not limited to, the Internet, corporate intranets, local area networks, mobile communication networks, and combinations thereof.

[0052] Those skilled in the art will understand that Figure 1 The device structure shown does not constitute a limitation on the system architecture platform 100, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0053] existFigure 1 In the system architecture platform 100 shown, the processor 110 can be used to call the winding needle control program stored in the memory 120, thereby implementing the winding needle control method.

[0054] Based on the hardware structure of the above-mentioned system architecture platform, various embodiments of the needle winding control method of this application are proposed.

[0055] like Figure 2 As shown, Figure 2 This is a flowchart of a needle winding control method provided in one embodiment of this application. The needle winding control method includes, but is not limited to, steps S100, S200, S300, S400, S500, and S600.

[0056] Step S100: Obtain the current angle of the winding needle, the initial angle of the winding needle when winding the material, the thickness of the material, and the diameter of the winding needle;

[0057] Step S200: Determine the overlapping angle of the roll material based on the current angle and the initial angle;

[0058] Step S300: Calculate the unit incremental thickness of the roll material at a unit angle based on the roll material thickness;

[0059] Step S400: Determine the cumulative incremental thickness of the roll material based on the stacking angle and the unit incremental thickness;

[0060] Step S500: Determine the overall diameter of the coil needle and the coiled material based on the diameter of the coil needle and the cumulative increasing thickness;

[0061] Step S600: Calculate the target angular velocity of the winding needle based on the preset linear velocity and overall diameter of the winding needle, and control the winding needle to wind according to the target angular velocity.

[0062] In one embodiment, the present invention first obtains the current angle of the needle, the initial angle of the needle winding the material, the thickness of the material, and the diameter of the needle. Then, the superposition angle of the material is determined based on the difference between the current angle and the initial angle. Simultaneously, the present invention calculates the unit incremental thickness of the material at a unit angle based on the material thickness. Since the superposition angle and the unit incremental thickness are already known, the present invention can calculate the cumulative incremental thickness of the material based on the product of the superposition angle and the unit incremental thickness. Next, since the material is wound on the needle, the present invention can use the sum of the cumulative incremental thickness and the needle diameter as the overall diameter of the needle and the material. Finally, by converting the preset linear velocity of the needle and the overall diameter, the target angular velocity of the needle is obtained, and the needle is controlled to wind according to the target angular velocity.

[0063] The embodiment of the application can change the winding diameter size according to the taper superposition of the winding material thickness, convert the linear velocity into angular velocity, make the winding needle follow the angular velocity synchronously, and control the winding needle to wind in the speed control mode, so that the change and debugging are convenient, only the winding material thickness needs to be changed, a large amount of time can be saved, and the followed speed is stable and will not be suddenly changed due to other factors.

[0064] In addition, as Figure 3 shown, Figure 3 is a flowchart of the winding needle control method provided by another embodiment of the application. In the case that the initial angle includes a first initial angle of the winding needle winding the diaphragm and a second initial angle of the winding needle winding the pole piece, the step S200 of determining the superposition angle of the winding material according to the current angle and the initial angle includes but is not limited to the steps S210 and S220.

[0065] The step S210 is to perform difference operation on the current angle and the first initial angle to obtain the first superposition angle of the diaphragm.

[0066] The step S220 is to perform difference operation on the current angle and the second initial angle to obtain the second superposition angle of the pole piece.

[0067] In an embodiment, since the winding material of the embodiment of the application includes but is not limited to the diaphragm and the pole piece, the diaphragm and the pole piece need to be calculated respectively when the superposition angle is calculated, and the specific calculation is as follows: for the diaphragm, the embodiment of the application can subtract the first initial angle from the current angle, and the difference is the first superposition angle of the diaphragm; in addition, for the pole piece, the embodiment of the application can subtract the second initial angle from the current angle, and the difference is the second superposition angle of the pole piece.

[0068] In addition, as Figure 4 shown, Figure 4 is a flowchart of the winding needle control method provided by another embodiment of the application. In the case that the winding material thickness includes the diaphragm thickness, the cathode pole piece thickness and the anode pole piece thickness, the step S300 of calculating the unit incremental thickness of the winding material under the unit angle according to the winding material thickness includes but is not limited to the steps S310 and S320.

[0069] The step S310 is to calculate the first unit incremental thickness of the diaphragm under the unit angle according to the diaphragm thickness.

[0070] The step S320 is to calculate the second unit incremental thickness of the pole piece under the unit angle according to the cathode pole piece thickness and the anode pole piece thickness.

[0071] In an embodiment, since the roll stock of the embodiment of the present application includes but is not limited to the separator and the pole piece, and the pole piece includes the cathode pole piece and the anode pole piece, the separator and the pole piece need to be calculated respectively when calculating the unit incremental thickness, specifically as follows: for the separator, the embodiment of the present application can calculate the first unit incremental thickness of the separator under the unit angle according to the separator thickness; for the pole piece, the embodiment of the present application can calculate the second unit incremental thickness of the pole piece under the unit angle according to the cathode pole piece thickness and the anode pole piece thickness.

[0072] It should be noted that the separator thickness is calculated to obtain the first unit incremental thickness by the following formula: the first unit incremental thickness = the separator thickness * 4 / 360.

[0073] In addition, it should be noted that the cathode pole piece thickness and the anode pole piece thickness are calculated to obtain the second unit incremental thickness by the following formula: the second unit incremental thickness = (the cathode pole piece thickness + the anode pole piece thickness) * 2 / 360.

[0074] In addition, as shown in Figure 5 , the embodiment of the present application provides a roll needle control method. Figure 5 Regarding the step S400 of determining the cumulative incremental thickness of the roll stock according to the superposition angle and the unit incremental thickness, it includes but is not limited to the step S410 and the step S420.

[0075] The step S410, the first superposition angle and the first unit incremental thickness are multiplied to obtain the first cumulative incremental thickness of the separator;

[0076] The step S420, the second superposition angle and the second unit incremental thickness are multiplied to obtain the second cumulative incremental thickness of the pole piece.

[0077] In an embodiment, since the roll stock of the embodiment of the present application includes but is not limited to the separator and the pole piece, the separator and the pole piece need to be calculated respectively when calculating the cumulative incremental thickness, specifically as follows: for the separator, the embodiment of the present application can multiply the first superposition angle by the first unit incremental thickness, and the obtained product value is the first cumulative incremental thickness of the separator; in addition, for the pole piece, the embodiment of the present application can multiply the second superposition angle by the second unit incremental thickness, and the obtained product value is the second cumulative incremental thickness of the separator.

[0078] In addition, as shown in Figure 6 , the embodiment of the present application provides a roll needle control method. Figure 6 Regarding the step S500 of determining the overall diameter of the roll needle and the roll stock according to the roll needle diameter and the cumulative incremental thickness, it includes but is not limited to the step S510.

[0079] Step S510: Perform an addition operation on the diameter of the coil needle, the first cumulative incremental thickness, and the second cumulative incremental thickness to obtain the overall diameter of the coil needle and the coiled material.

[0080] In one embodiment, since both the diaphragm and the electrode are wound on the winding needle, after the first cumulative increasing thickness and the second cumulative increasing thickness are known, the embodiments of this application can add up the first cumulative increasing thickness, the second cumulative increasing thickness and the diameter of the winding needle, and the resulting accumulated value is the overall diameter of the winding needle and the wound material.

[0081] In addition, such as Figure 7 As shown, Figure 7 This is a flowchart of a needle winding control method provided in another embodiment of this application. The calculation of the target angular velocity of the needle based on the preset linear velocity and overall diameter of the needle in step S600 includes, but is not limited to, step S610.

[0082] Step S610: Input the preset linear velocity and overall diameter into the arc length formula to obtain the target angular velocity of the coiling needle.

[0083] In one embodiment, after knowing the preset linear velocity of the winding needle and the overall diameter of the winding needle and the coiled material, this embodiment of the application can input the preset linear velocity and the overall diameter into the arc length formula to perform the conversion between linear velocity and angular velocity, thereby obtaining the target angular velocity of the winding needle.

[0084] It should be noted that the above-mentioned arc length formula is as follows: Target angular velocity = Preset linear velocity / (Overall diameter * pi) * 360.

[0085] Based on the needle winding control methods of the above embodiments, the overall embodiments of the needle winding control method of this application are presented below.

[0086] like Figure 8 As shown, Figure 8 This is an overall flowchart of a needle winding control method provided in one embodiment of this application. The overall process includes, but is not limited to, steps S710 to S770.

[0087] Step S710: Obtain the cathode electrode thickness A, anode electrode thickness B, diaphragm thickness U, winding needle diameter G, needle insertion angle, and the angle at which the electrode begins to enter the winding needle.

[0088] Step S720: Calculate the diaphragm stacking angle: U angle = current angle of the winding needle - needle insertion angle, and calculate the electrode stacking angle: J angle = current angle of the winding needle - angle when the electrode starts to enter the winding needle;

[0089] Step S730, calculate the membrane thickness increment per degree: Uthick = U*4 / 360, and calculate the pole piece thickness increment per degree: Jthick = (A+B)*2 / 360;

[0090] Step S740, calculate the actual winding increment thickness of the membrane: Hmem = Uthick*Uangle, and calculate the actual winding increment thickness of the pole piece: Hpole = Jthick*Jangle;

[0091] Step S750, calculate the overall winding needle diameter: Z = Hmem + Hpole + G;

[0092] Step S760, obtain the planning linear velocity V, and convert the winding needle planning angular velocity according to the arc length formula, the linear velocity and the overall winding needle diameter: ω = V / (Z*π)*360;

[0093] Step S770, the winding needle moves according to the speed synchronous control following the planning angular velocity ω.

[0094] According to the technical scheme of the embodiment of the application, the embodiment of the application can change the winding diameter according to the taper stacking of the winding material thickness, convert the linear velocity into angular velocity, make the winding needle follow the angular velocity, and control the winding needle to wind in the speed control mode, which is convenient for changing and debugging, only needs to change the winding material thickness, can save a lot of time, and the followed speed is stable and will not be suddenly changed due to other factors.

[0095] Based on the winding needle control method of each of the above embodiments, the following respectively proposes each embodiment of the controller and the computer readable storage medium of the application.

[0096] In addition, one embodiment of the application provides a controller, which comprises a processor, a memory and a computer program stored on the memory and executable on the processor.

[0097] The processor and the memory can be connected through a bus or other means.

[0098] It should be noted that the controller in the embodiment can include the processor and the memory in the embodiment as shown in Figure 1 The two belong to the same application concept, so they have the same implementation principle and beneficial effects, which will not be described here in detail.

[0099] The non-transient software program and instructions required to implement the winding needle control method of the above embodiment are stored in the memory, and when executed by the processor, the winding needle control method of the above embodiment is executed.

[0100] According to the technical scheme of the controller of the embodiment of the present application, the embodiment of the present application can change the winding diameter according to the taper superposition of the material thickness, convert the linear velocity into the angular velocity, make the winding needle follow the angular velocity synchronously, and control the winding needle to wind in the speed control mode, so that the type changing and debugging are convenient, only the material thickness needs to be changed, a large amount of time can be saved, the followed speed is stable, and sudden changes caused by other factors are avoided.

[0101] It is worth noting that, since the controller of the embodiment of the present application can perform the winding needle control method of the above-mentioned embodiments, the specific implementation and technical effects of the controller of the embodiment of the present application can refer to the specific implementation and technical effects of the winding needle control method of any one of the above-mentioned embodiments.

[0102] In addition, one embodiment of the present application also provides a computer readable storage medium, which stores computer executable instructions for executing the winding needle control method described above. Exemplarily, the method steps in the above description are executed. Figures 2 to 8

[0103] According to the technical scheme of the computer readable storage medium of the embodiment of the present application, the embodiment of the present application can change the winding diameter according to the taper superposition of the material thickness, convert the linear velocity into the angular velocity, make the winding needle follow the angular velocity synchronously, and control the winding needle to wind in the speed control mode, so that the type changing and debugging are convenient, only the material thickness needs to be changed, a large amount of time can be saved, the followed speed is stable, and sudden changes caused by other factors are avoided.

[0104] It is worth noting that, since the computer readable storage medium of the embodiment of the present application can implement the winding needle control method of the above-mentioned embodiments, the specific implementation and technical effects of the computer readable storage medium of the embodiment of the present application can refer to the specific implementation and technical effects of the winding needle control method of any one of the above-mentioned embodiments.

[0105] ​As will be appreciated by one of ordinary skill in the art, all or some of the steps, systems, and techniques disclosed herein can be embodied in software, firmware, hardware, and / or suitable combination thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a micro-processing unit, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on computer readable media, which can comprise computer storage media (or non-transitory media), and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data. Computer storage media include, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Further, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and includes any information delivery media.

[0106] The above description is that of the preferred embodiments of the present application. Various equivalents substitutions and modifications can be conceived by those skilled in the art without departing from the spirit and scope of the present application, and such equivalents substitutions and modifications are included in the scope of the claims.

Claims

1. A method of controlling a j acking needle, characterized by, The method comprises the following steps: acquiring a current angle of a winding needle, an initial angle at which the winding needle initially winds a roll material, a thickness of the roll material, and a diameter of the winding needle; determining a superposition angle of the roll material according to the current angle and the initial angle; calculating a unit incremental thickness of the roll material under a unit angle according to the thickness of the roll material; determining a cumulative incremental thickness of the roll material according to the superposition angle and the unit incremental thickness; determining an overall diameter of the winding needle and the roll material according to the diameter of the winding needle and the cumulative incremental thickness; calculating a target angular velocity of the winding needle according to a preset linear velocity of the winding needle and the overall diameter, and controlling the winding needle to wind according to the target angular velocity; wherein the initial angle comprises a first initial angle at which the winding needle initially winds a diaphragm and a second initial angle at which the winding needle initially winds a pole piece; the superposition angle of the roll material is determined according to the current angle and the initial angle, which comprises: performing a difference operation on the current angle and the first initial angle to obtain a first superposition angle of the diaphragm; and performing a difference operation on the current angle and the second initial angle to obtain a second superposition angle of the pole piece; in addition, the thickness of the roll material comprises a diaphragm thickness, a cathode pole piece thickness, and an anode pole piece thickness; the unit incremental thickness of the roll material under the unit angle is calculated according to the thickness of the roll material, which comprises: calculating a first unit incremental thickness of the diaphragm under the unit angle according to the diaphragm thickness; and calculating a second unit incremental thickness of the pole piece under the unit angle according to the cathode pole piece thickness and the anode pole piece thickness; in addition, the cumulative incremental thickness of the roll material is determined according to the superposition angle and the unit incremental thickness, which comprises: performing a product operation on the first superposition angle and the first unit incremental thickness to obtain a first cumulative incremental thickness of the diaphragm; and performing a product operation on the second superposition angle and the second unit incremental thickness to obtain a second cumulative incremental thickness of the pole piece.

2. The winding needle control method according to claim 1, wherein: the diaphragm thickness is used to calculate the first unit incremental thickness by the following formula: first unit incremental thickness = diaphragm thickness * 4 / 360; the cathode pole piece thickness and the anode pole piece thickness are used to calculate the second unit incremental thickness by the following formula: second unit incremental thickness = (cathode pole piece thickness + anode pole piece thickness) * 2 / 360.

3. The method of claim 1, wherein, the overall diameter of the winding needle and the roll material is determined according to the diameter of the winding needle and the cumulative incremental thickness, which comprises: performing a sum operation on the diameter of the winding needle, the first cumulative incremental thickness, and the second cumulative incremental thickness to obtain the overall diameter of the winding needle and the roll material.

4. The method of claim 1, wherein the target angular velocity of the winding needle is calculated according to the preset linear velocity of the winding needle and the overall diameter, which comprises: inputting the preset linear velocity and the overall diameter into an arc length formula to obtain the target angular velocity of the winding needle.

5. The method of claim 4, wherein, the arc length formula is as follows: target angular velocity = preset linear velocity / (overall diameter * pi) * 360.

6. A controller comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executing the computer program to perform the method of claim 1 to 5.

7. A computer readable storage medium characterized by Computer executable instructions are stored, the computer executable instructions being used to perform the method of claim 1 to 5.

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