A winding machine and a new device linkage unwinding system

Abstract

This utility model discloses a linkage unwinding system for a winding machine and newly added equipment, including an original winding controller, an original oscillating roller structure, an original unwinding mechanism, and an original traction mechanism. The original winding controller is communicatively connected to the controller of the newly added equipment, and the controller of the newly added equipment is connected to a new traction motor and a new traction encoder. This utility model enables communication between the original winding controller and the controller of the newly added equipment. The original unwinding motor and the new traction motor start synchronously, and the stopping of the new traction motor triggers the stopping of the original unwinding motor. Through the communication between the original winding controller and the controller of the newly added equipment, and the coordination between the new traction motor and the original winding motor, the linkage unwinding of the newly added equipment and the original winding equipment is achieved. This provides operational space for adding new process equipment without changing the layout and mechanical structure of the original winding machine, expanding the functions that the original winding machine can achieve, and reducing the production line modification cost.

Description

Technical Field

[0001] This utility model belongs to the field of power battery core production, specifically involving a winding machine and a newly added equipment linkage unwinding system. Background Technology

[0002] Currently, the common bare cell forming processes for power batteries in the lithium battery industry are roughly divided into two types: winding and stacking. When using a winding machine to complete the winding process, the unwinding of the electrode sheet is the first step. However, since the layout of each functional module in the existing winding machine equipment is fixed, it is difficult to have extra equipment space to add other functions. If it is necessary to add equipment for other processes after the electrode sheet unwinding process, it is necessary to solve the problem of linkage operation between the electrode sheet unwinding process and the equipment for the subsequent new processes. This is because the newly added functional module equipment does not have a linkage unwinding function with the original winding machine, making it difficult to effectively and stably carry out linkage unwinding production. Utility Model Content

[0003] To address the shortcomings described in the prior art, this utility model provides a winding machine and a new equipment linkage unwinding system. This system establishes a communication relationship between the new equipment controller and the original winding controller, and synchronizes the operation of the new traction mechanism with the operation of the original unwinding mechanism, enabling the new equipment to unwind in conjunction with the existing equipment.

[0004] The technical solution adopted in this utility model is as follows:

[0005] A winding machine and a newly added equipment linkage unwinding system includes an original winding controller, an original oscillating roller structure, an original traction mechanism, and an original unwinding mechanism. The original oscillating roller structure includes an oscillating roller and an oscillating cylinder, and an oscillating position sensor is installed at the oscillating roller. The original unwinding mechanism includes an original unwinding motor and an original unwinding encoder. The oscillating position sensor, the oscillating cylinder, the original unwinding motor, and the original unwinding encoder are all connected to the original winding controller.

[0006] It also includes the addition of new conveying equipment, which is set between the original oscillating roller structure and the original traction mechanism. The electrode sheets unwound by the original unwinding mechanism are conveyed to the new conveying equipment via the original oscillating roller structure. The new conveying equipment then conveys the electrode sheets to the original traction mechanism for traction. The control of the original winding machine remains unchanged. Only the equipment for conveying electrode sheets is added between the original traction mechanism and the original oscillating roller structure, which extends the conveying path of the electrode sheets and provides operating space for the new process.

[0007] The newly added conveying equipment includes a new equipment controller and a new traction mechanism; the new traction mechanism includes a new traction motor and a new traction encoder. The new traction encoder is installed on the shaft of the new traction motor and is used to detect the number of rotations of the new traction motor, thereby obtaining the pole length of the new traction conveyor in real time; the original winding controller is connected to the new equipment controller, and the new equipment controller is connected to the new traction motor.

[0008] When the original winding controller receives a start signal, it sends a start signal to the new equipment controller, which then controls the new traction motor to start. The original winding controller controls the original unwinding motor and the new traction motor to start synchronously. When the new traction motor stops, the new equipment controller sends a stop signal to the original winding controller, which then controls the original unwinding motor and the new traction motor to stop synchronously.

[0009] The original traction mechanism includes the original traction motor and the original traction encoder, with the original traction encoder mounted on the shaft of the original traction motor; both the original traction motor and the original traction encoder are connected to the original winding controller.

[0010] The original winding controller continues to control the original traction motor as before. The modification only involves connecting the original winding controller to the controller of the new equipment and changing the timing of the original winding controller's control over the original unwinding motor. Before the addition of the new equipment, the control timing of the original unwinding motor was synchronized with the start and stop of the original traction motor. After the addition of the new equipment, due to the signal transmission delay between the original winding controller and the controller of the new equipment, in order to ensure that the new equipment delivers the electrode sheets in a steady state with the original equipment, the start and stop timing of the original unwinding motor is now consistent with the start and stop timing of the new traction motor, no longer consistent with the original traction motor. Furthermore, the original traction motor... The total length and speed of the electrode conveying are pre-set. After the original traction encoder detects the completion of the conveying, the original winding controller will control the original traction motor to stop. However, the original unwinding motor is stopped by the original winding controller based on the signal transmitted from the new equipment controller. The length and speed of the new traction motor for conveying the electrode are also pre-set. The new traction encoder detects the length of the new electrode conveying. After the conveying is completed, the new equipment controller controls the new traction motor to stop and sends a signal to the original winding controller, which then controls the original winding motor to stop.

[0011] As a preferred embodiment of this utility model, the original oscillating roller structure includes an oscillating roller and a swing cylinder. The oscillating roller can oscillate around an axis. The swing cylinder is hinged to the free end of the oscillating roller to control the oscillation position of the oscillating roller and prevent the oscillating roller from being pulled to the highest position during the conveying process. An oscillating position sensor is installed at the oscillating roller to detect the position of the oscillating roller. The oscillating roller structure is the original structure and has not been modified. The oscillating position sensor can detect whether the oscillating roller is in a steady state and obtain the position change of the oscillating roller. The control relationship with the original winding controller is also the original. During linkage unwinding, only the original oscillating roller structure, the original traction mechanism, the original unwinding motor, and the newly added conveying equipment are used in conjunction with the original winding controller. Other original functional structures, whether in terms of structure or control, remain unchanged. After the linkage unwinding is completed, the original detection is still collected, but the original winding controller only saves these detection data and does not process them. Data collection is still the original function of the winding machine.

[0012] This invention establishes communication between the original winding controller and the new equipment controller. The start of the new traction motor is triggered by the start signal transmitted from the original winding controller to the new equipment controller. The original unwinding motor and the new traction motor start synchronously, and the stop of the new traction motor triggers the stop of the original unwinding motor. Through the communication between the original winding controller and the new equipment controller and the cooperation between the new traction motor and the original winding motor, the linkage unwinding of the new equipment and the original winding equipment is achieved. This provides operational space for adding new process equipment to the original unwinding equipment without changing the layout and mechanical structure of the original winding machine, expanding the functions that the original winding machine can achieve and reducing the cost of production line transformation. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the control principle of this utility model.

[0015] Figure 2 This is a production line layout diagram of this utility model. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example:

[0018] A winding machine and newly added equipment linkage unwinding system, such as Figure 1 As shown, the original winding controller, traction mechanism, oscillating roller structure, and unwinding mechanism are all included. The original equipment of the winding machine remains unchanged; only a new conveying device is added between the original oscillating roller structure and the original traction mechanism. Figure 2 As shown, it is used to transport the electrode sheets, extend the electrode sheet transport channel, and provide operating space for the new process. In order to link the winding machine with the new transport equipment for unwinding, it is only necessary to coordinate the original unwinding mechanism, the original swing roller structure, the original winding controller and the new transport equipment. Other original structures and controls remain unchanged.

[0019] The original traction encoder is installed on the original traction motor shaft to detect the number of rotations of the original traction motor, thereby obtaining the length of the pole piece for traction conveying;

[0020] The original unwinding mechanism includes the original unwinding motor and the original unwinding encoder. The original unwinding encoder is mounted on the shaft of the original unwinding motor. The original unwinding motor contains an encoder. The unwinding motor model is SGM7P-15AFA61, and the unwinding encoder model is FA61.

[0021] The original equipment of the winding machine includes the original oscillating roller structure and winding mechanism; the original functions of the winding machine are also retained, and the detection of each piece of equipment is also the original. The original oscillating roller structure includes the oscillating roller and the swing rod cylinder, and an oscillating position sensor is installed at the oscillating roller; the oscillating position sensor is connected to the original winding controller. The oscillating position sensor collects the position information of the oscillating roller, using an angle sensor, which can be a potentiometer of model CP-2UN; the original winding controller controls the swing rod cylinder by controlling an electro-proportional valve, model ITV1030-402CL, and the swing rod cylinder model 25A-CJ2B1645Z.

[0022] The new conveying equipment includes a new equipment controller and a new traction mechanism; the new traction mechanism includes a new traction motor and a new traction encoder, with the new traction encoder mounted on the shaft of the new traction motor; the new traction encoder and the new traction motor are connected to the new equipment controller, and the original winding controller is communicatively connected to the new equipment controller.

[0023] After receiving the start signal, the original winding controller controls the original traction motor to start. When the original traction motor starts, the original winding controller sends a start signal to the new equipment controller, which then controls the new traction motor to start. The original winding controller controls the original unwinding motor to start synchronously with the new traction motor. That is, after the original traction motor starts, the original winding controller starts the original unwinding motor with a delay. The delay time is set in advance and is related to the working position of the oscillating roller. The working position of the oscillating roller can be detected by the oscillating position sensor.

[0024] After the new conveying equipment is installed, set the unwinding delay start time, original traction conveying length, and original traction conveying speed for the original winding controller; set the new traction speed and new traction length for the new equipment.

[0025] The original winding controller starts the original unwinding motor according to the delayed start time. The original winding controller is a Yaskawa MP3300. The original unwinding motor contains an encoder. The original unwinding motor model is SGM7P-15AFA61, and the original unwinding encoder model is FA61. The original unwinding encoder is directly integrated into the original unwinding motor, so that the original unwinding motor starts synchronously with the new traction motor. The existence of this delayed start time is mainly due to the delay in signal transmission between the original winding controller and the new equipment controller.

[0026] The newly added traction motor contains an encoder. The new traction motor model is MSIH4-40B30CB-A331R, and the new traction encoder model is A331R. The new traction encoder detects the pole piece conveying length. After reaching the set length, the new equipment controller, model Omron NX102-1100, stops the new traction motor and sends a stop signal to the original winding controller. The original winding controller then stops the original unwinding motor and the new traction motor synchronously.

[0027] The original winding controller still controls the original traction motor in the same way. The original traction motor contains an encoder. The original traction motor model is SGM7J-04AFA21. The original traction encoder model is FA21. The original traction encoder measures the conveying length of the pole pieces. After the set length is reached, the original winding controller will control the original traction motor to stop.

[0028] After adding the conveying equipment, the only change is connecting the original winding controller to the new equipment controller and altering the control timing of the original unwinding motor. Before the addition of the equipment, the control timing of the original unwinding motor was synchronized with the start and stop of the original traction motor. After the addition of the equipment, due to the signal transmission delay between the original winding controller and the new equipment controller, in order to ensure that the new equipment can deliver the electrode sheets in a steady state with the original equipment, the start and stop timing of the original unwinding motor is now consistent with the start and stop timing of the new traction motor, no longer consistent with the original traction motor. Furthermore, the conveying length and speed of the original traction motor for the electrode sheets are pre-set. After the conveying is completed, the original winding controller will control the original traction motor to stop. However, the stopping of the original unwinding motor is initiated by the original winding controller based on the signal transmitted from the new equipment controller. The new traction encoder measures the electrode sheet conveying length of the new equipment. After reaching the set length, the new equipment controller will control the new traction motor to stop and simultaneously send a signal to the original winding controller, which will then control the original winding motor to stop.

[0029] In this specification, the terms "an embodiment," "example," "specific example," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A winding machine and newly added equipment linkage unwinding system, including the original winding controller, the original swing roller structure, and the original unwinding mechanism. The original swing roller structure includes a swing roller and a swing rod cylinder, and a swing position sensor is installed at the swing roller. The original unwinding mechanism includes the original unwinding motor and the original unwinding encoder; the swing position sensor, the swing cylinder, the original unwinding motor, and the original unwinding encoder are all connected to the original winding controller, characterized in that: It also includes a new conveying device, which is set between the original swing roller structure and the original traction mechanism; the new conveying device includes a new device controller and a new traction mechanism; the new traction mechanism includes a new traction motor and a new traction encoder, with the new traction encoder mounted on the shaft of the new traction motor; the original winding controller is communicatively connected to the new device controller, and the new traction encoder and the new traction motor are connected to the new device controller; after the original winding controller receives a start signal, the original winding controller sends a start signal to the new device controller, and the new device controller controls the new traction motor to start; The original winding controller controls the original unwinding motor and the new traction motor to start synchronously; when the new traction motor stops, the new equipment controller sends a stop signal to the original winding controller, and the original winding controller controls the original unwinding motor and the new traction motor to stop synchronously.

2. The winding machine and newly added equipment linkage unwinding system according to claim 1, characterized in that: It also includes the original traction mechanism, which includes the original traction motor and the original traction encoder. The original traction encoder is mounted on the shaft of the original traction motor. Both the original traction motor and the original traction encoder are connected to the original winding controller.

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