Double-station before-rolling deviation rectifying device

Abstract

The utility model discloses a double-station before-rolling deviation rectifying device which comprises a base used for installing and fixing the device, two pressing deviation rectifying modules are installed in the middle of the front end of the base, two deviation rectifying driving modules are installed at the upper end of the base, the deviation rectifying driving modules are correspondingly connected with the pressing deviation rectifying modules, a deviation rectifying guiding module is arranged on the base, and the deviation rectifying guiding module is connected with the pressing deviation rectifying modules. The pressing deviation rectifying module is connected to the deviation rectifying guiding module, the deviation rectifying driving module drives the pressing deviation rectifying module to move left and right along the deviation rectifying guiding module, a deviation rectifying detection module is further arranged at the rear end of the base, and the deviation rectifying detection module is electrically connected with the deviation rectifying driving module. And the detection module is used for detecting whether the deviation rectification driving module drives the pole piece on the pressing deviation rectification module in place or not. According to the deviation rectifying device disclosed by the utility model, the two stations can simultaneously supply materials to the winding station for winding, the productivity of the winding machine is improved, independent deviation rectifying of each station on a pole piece material belt can be realized, the stations do not influence each other, the alignment degree of battery cells is further improved, and the product quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery winding correction technology, specifically to a dual-station pre-winding correction device. Background Technology

[0002] With the rapid development of the lithium battery industry, battery manufacturers are demanding increasingly higher production efficiency from lithium battery equipment, particularly increasing the capacity requirements for winding machines. To improve the capacity of winding machines, various technical approaches have emerged in the industry. One such approach involves simultaneously winding two battery cells along the axis of the winding needle at the winding position, thereby increasing the winding machine's capacity.

[0003] However, under this technical approach, the existing winding machine's pre-winding correction device has only one correction station. If two electrode strips enter at the same time, they can only be corrected in one direction simultaneously. They cannot be corrected independently, meaning the two strips cannot move towards each other and cannot be corrected independently, thus failing to meet the correction requirements.

[0004] Therefore, there is a need to provide a dual-station winding pre-coil correction device to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings of existing technologies, this utility model provides a dual-station pre-winding correction device, which can simultaneously feed materials from two stations to the winding station for winding lithium battery cells, thereby increasing the winding machine's capacity. It can also enable each station to independently correct the electrode strip, with no interference between stations, thereby improving the alignment of the battery cells and enhancing product quality.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A dual-station pre-winding correction device includes:

[0008] The base is used for mounting and securing the device.

[0009] A clamping and correction module is used to clamp the electrode strip, and two of the clamping and correction modules are arranged at the front center of the base;

[0010] A correction drive module is fixed to the upper end of the base, and the output end of the correction drive module is fixedly connected to the clamping correction module.

[0011] A correction guide module is fixed to the front end of the base. The rear end of the clamping correction module is fixedly connected to the front end of the correction guide module, and the correction drive module drives the clamping correction module to move left and right along the correction guide module.

[0012] The correction detection module is used to detect whether the correction drive module has driven the electrode on the clamping correction module into position, and the correction detection module is installed at the rear end of the base and is electrically connected to the correction drive module.

[0013] As a preferred technical solution of this utility model, the clamping and correction module includes a drive roller, a clamping roller, a drive motor, a clamping drive assembly, and a fixed frame. The two ends of the drive roller are movably connected to the fixed frame, and the drive motor is installed at one end of the fixed frame. The output end of the drive motor is connected to the drive roller. The clamping drive assembly is installed on the upper part of the fixed frame, and the clamping roller is connected to the bottom of the clamping drive assembly and is positioned directly above the drive roller.

[0014] As a preferred technical solution of this utility model, the pressing drive assembly is provided with a drive cylinder, a sensing plate, a guide rod and a connecting frame. The two ends of the pressing roller are movably connected to the connecting frame. The drive cylinder is fixed to the upper end of the fixed frame, and the output end of the drive cylinder passes through the upper end of the fixed frame and is connected to the middle of the connecting frame. The lower end of the sensing plate is connected to the connecting frame, and the upper end of the sensing plate moves up and down in the fixed frame as the drive cylinder extends and retracts. The guide rod is provided at both ends of the connecting frame, and the upper part of the guide rod is connected to the fixed frame.

[0015] As a preferred technical solution of this utility model, the fixing frame is provided with a groove and a linear bearing, the upper end of the sensing plate is suspended in the groove, and a sensor is provided in the groove to detect the lifting position of the sensing plate, and the upper part of the guide rod is sleeved in the linear bearing.

[0016] As a preferred technical solution of this utility model, the correction drive module includes a motor, a coupling, a lead screw nut, and a transmission block. The lead screw nut is connected to the output end of the motor through the coupling. The transmission block is fixed on the nut of the lead screw nut, and the bottom end of the transmission block is connected to the fixing frame of the clamping correction module.

[0017] As a preferred technical solution of this utility model, the upper end of the base is provided with an elongated hole, and the lower part of the transmission block passes through the elongated hole and is connected to the fixing frame.

[0018] As a preferred technical solution of this utility model, the lower end of the transmission block is provided with a snap-fit ​​block, the snap-fit ​​block is provided with a connecting through hole, the fixing frame is provided with a snap-fit ​​groove, the snap-fit ​​groove is provided with a fixing hole, and the snap-fit ​​block is snapped into the snap-fit ​​groove, and the connecting through hole is aligned with the fixing hole.

[0019] As a preferred technical solution of this utility model, the correction and guiding module is provided with a linear guide rail and sliders. The linear guide rail is fixed on the base, and multiple sliders are snapped onto the linear guide rail and fixed at both ends of the fixing frame.

[0020] As a preferred technical solution of this utility model, the correction detection module includes a correction sensor, a sensor fixing plate, a fixing shaft, and a fixing seat. The fixing seat is connected to the base, and two fixing seats are respectively connected to the two ends of the fixing shaft. The two fixing shafts are respectively disposed at the upper and lower ends of the fixing seat. The sensor fixing plate is connected to the fixing shaft, and the correction sensor is connected between the fixing shafts through the sensor fixing plate.

[0021] As a preferred technical solution of this utility model, two sets of correction sensors are provided, and the vertical distance between each set of correction sensors is greater than the distance between the drive roller and the pressing roller.

[0022] The beneficial effects of this utility model are:

[0023] This invention achieves dual-correction station by setting two correction drive modules on two pressing and correction modules, which can independently correct the two material strips traveling at the same time, ensuring that each material strip is always in its required reference position, thereby ensuring that each electrode sheet fed into the winding station is in the correct position, thus improving the alignment of the battery cell and improving product quality. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Figure 1 This is a three-dimensional structural diagram of the device of this utility model from one perspective;

[0026] Figure 2 This is a three-dimensional structural diagram of the device of this utility model from another perspective;

[0027] Figure 3 This is a front view structural diagram of the device of this utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the clamping and correction module of this utility model;

[0029] Figure 5 This is a front view structural diagram of the clamping and correction module of this utility model;

[0030] Figure 6 This is a schematic diagram of the structure of the correction drive module of this utility model;

[0031] Figure 7 for Figure 1Enlarged view of point A in the middle;

[0032] Figure 8 This is a schematic diagram of the structure of the correction and guidance module of this utility model;

[0033] Figure 9 This is a schematic diagram of the structure of the correction and detection module of this utility model.

[0034] The above figures include the following reference numerals:

[0035] 1. Base; 11. Long slot; 2. Clamping and correction module; 21. Drive roller; 22. Clamping roller; 23. Drive motor; 24. Clamping drive assembly; 241. Drive cylinder; 242. Sensor plate; 243. Guide rod; 244. Connecting frame; 25. Fixing frame; 251. Groove; 252. Linear bearing; 253. Engaging groove; 254. Fixing hole; 3. Correction drive module; 31. Motor; 32. Coupling; 33. Screw nut; 34. Transmission block; 341. Snap-fit ​​block; 342. Connecting through hole; 4. Correction guide module; 41. Linear guide rail; 42. Slider; 5. Correction detection module; 51. Fixing seat; 52. Fixing shaft; 53. Sensor fixing plate; 54. Correction sensor. Detailed Implementation

[0036] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0037] Reference Figure 1-3A dual-station pre-coil correction device includes a base 1, a clamping correction module 2, a correction drive module 3, a correction guide module 4, and a correction detection module 5. The device is fixedly mounted on an equipment via the base 1 to achieve its function. Two clamping correction modules 2 are symmetrically positioned at the front end of the base 1 for easy installation. Similarly, two correction drive modules 3 are fixed to the upper end of the base 1, with their lower ends fixedly connected to the clamping correction modules 2, allowing one drive module 3 to control one correction module 2, thus achieving independent correction at two different stations. The correction guide module 4 is also fixed to the front end of the base 1 to clamp the correction modules. 2 is fixed on the correction guide module 4, so that the correction drive module 3 drives the clamping correction module 2 to move left and right along the correction guide module 4 to perform the correction operation of the electrode strip; in addition, the correction detection module 5 is fixed on the rear end of the base 1 and electrically connected to the correction drive module 3. It can detect the moving electrode strip to confirm whether the electrode strip is misaligned. If correction operation is required, the sensor in the correction detection module 5 can send a signal to the correction drive module 3. The correction drive module 3 will then correct in the corresponding direction according to the received signal, driving the clamping drive module 2 to move on the correction guide module 3, so that each electrode is kept in the required reference position.

[0038] See Figure 4 , Figure 5 In an embodiment of this utility model, the clamping and correction module 2 includes a drive roller 21, a clamping roller 22, a drive motor 23, a clamping drive assembly 24, and a fixed frame 25. The two ends of the drive roller 21 are movably connected to the fixed frame 25, which can be achieved using rotating bearings, allowing the drive roller 21 to rotate normally. The drive motor 23 is then mounted on one end of the fixed frame 25, and its output end is connected to the drive shaft 21, enabling the drive motor 23 to rotate the drive roller 21. The clamping drive assembly 24 is installed on the upper part of the fixed frame 25, and the clamping roller 22 is connected to the bottom of the clamping drive assembly 24, so that the clamping roller 22 is positioned directly above the drive roller 21. When the electrode strip enters, the clamping drive assembly 24 drives the clamping roller 22 to press the strip downward, so that the strip is clamped between the drive roller 21 and the clamping roller 22. The drive roller 21 rotates to drive the strip forward, and the clamping roller 22 also rotates under the action of the friction of the strip, thereby smoothly guiding the electrode strip into the winding station.

[0039] Specifically, the pressing drive assembly 24 includes a drive cylinder 241, a sensing plate 242, a guide rod 243, and a connecting frame 244. Both ends of the pressing roller 22 are movably connected to the connecting frame 244, or alternatively, a rotating bearing can be used to ensure the pressing roller 22 can rotate normally. Since the drive cylinder 241 needs to drive the pressing roller 22 up and down, it needs to be installed vertically. To facilitate the installation of other components and to maintain the aesthetics of the structure, a recess is provided at the upper end of the fixing frame 25. The drive cylinder 241 is fixed in the recess, and its output end passes through the bottom of the recess and connects to the middle of the connecting frame 244. This allows the extension and retraction of the drive cylinder 241 to drive the connecting frame 244 up and down, thereby driving the pressing roller 22 up and down, achieving the function of pressing down and releasing upwards. To detect whether the pressing roller 22 is pressed or lifted to the correct position... Two sensing plates 243, one long and one short, are set above the connecting frame 244. A groove 251 is provided on the fixed frame 25, and a sensor is installed within the groove 251. The upper part of the sensing plate 243 is engaged within the groove 251. As the sensing plate 243 moves up and down, the sensor detects its position, thus determining whether the pressing roller 22 has reached its designated position. Guide rods 243 are positioned at both ends of the connecting frame 244, and linear bearings 252 are installed on the fixed frame 25. The upper end of the guide rod 243 is connected to the linear bearing 252. As the drive cylinder 241 extends and retracts, the guide rod 243, in conjunction with the linear bearing 252, guides and drives the connecting frame 244 to move up and down. Simultaneously, the sensing plate 243 slides within the groove 251. The sensor within the groove 251 detects the position of the sensing plate 243 to ensure that the pressing roller 22 is properly pressed or raised.

[0040] See Figure 6 , Figure 7 In this embodiment of the utility model, the correction drive module 3 includes a motor 31, a coupling 32, a lead screw nut 33, and a transmission block 34. The lead screw nut 33 includes a lead screw and a transmission nut. One end of the lead screw is fixedly connected to the output end of the motor 31 through the coupling 32. The transmission nut is sleeved on the lead screw, and the transmission block 34 is fixed on the transmission nut. As the motor rotates, the lead screw also rotates, and the transmission nut moves, thereby driving the transmission block 34 to move. The bottom end of the transmission block 34 is then fixedly connected to the fixing frame 25 of the clamping correction module 2, which can drive the clamping correction module 2 to move, thereby realizing the correction function. In addition, since the motor 31 needs to drive the lead screw nut 33 to rotate, a connecting seat can be used to fix the correction drive module 3 to ensure the normal operation of the structure.

[0041] Specifically, the upper end of the base 1 is provided with an elongated hole 11, so that the lower part of the transmission block 34 can pass through the elongated hole 11 and be connected and fixed to the fixing frame 25. On the one hand, this is conducive to structural assembly; on the other hand, it can play a limiting role to prevent the material belt from being seriously deviated due to excessive adjustment of the lead screw nut 33.

[0042] Specifically, the lower end of the transmission block 34 is provided with a snap-fit ​​block 341, and a connecting through hole 342 is provided on the snap-fit ​​block 341. At the same time, a snap-fit ​​groove 253 is provided on the fixing frame 25, and a fixing hole 254 is provided in the snap-fit ​​groove 253. The snap-fit ​​block 341 is snapped into the snap-fit ​​groove 253, so that the connecting through hole 342 and the fixing hole 254 are aligned. Then, screws are used for fixing. The structure is simple, the operation is convenient and the connection is firm.

[0043] See Figure 8 In this embodiment of the utility model, the correction and guidance module 4 is provided with linear guide rails 41 and sliders 42. The two linear guide rails 41 are vertically fixed to the front end of the base 1, and multiple sliders 42 are snapped onto the linear guide rails 41. In this embodiment, four sliders are provided, which are respectively fixed at both ends of the fixing frame 25 in the two pressing correction modules 2. The double track sliding is adopted, which also plays a guiding role while sliding, which is more conducive to the device to achieve accurate correction.

[0044] See Figure 9 In this embodiment of the present invention, the correction detection module 5 includes a fixed base 51, a fixed shaft 52, a sensor fixing plate 53, and a correction sensor 54. The fixed base 51 is connected to both ends of the fixed shaft 52 and is mounted on the base 1. The two fixed shafts 52 are also set at the upper and lower ends of the fixed base 51 to form a closed rectangular structure, which is relatively stable. The sensor fixing plate 53 is then connected to the fixed shaft 52. Since the sensor only needs to detect whether one end of the electrode strip is offset to confirm whether the strip is offset as a whole, the number of sensors on the module needs to match the number of clamping correction modules. That is, one clamping correction module 2 only needs one set of sensors. In this invention, there are two clamping correction modules 2, so two sets of sensors are required. The two sets of sensor fixing plates 53 are set at both ends of the fixed shaft 52, and the correction sensor 54 is connected between the fixed shafts 52 through the sensor fixing plates 53. When the electrode strip passes through the correction detection module 5, the correction sensor 54 located above and below the strip performs position detection. If the electrode strip deviates from the reference position, the correction sensor 54 will send a signal to the correction drive module 3. After receiving the signal, the correction drive module 3 will drive the clamping correction module 2 in the corresponding direction to correct the deviation, ensuring that the electrode strip on the clamping correction module 2 is always in the reference position during the winding process, thus realizing the function of correcting the deviation of the electrode strip.

[0045] Specifically, the vertical distance between each set of correction sensors 54 is greater than the distance between the drive roller 21 and the clamping roller 22, which can prevent the electrode strip from being affected by other external forces during the process and thus affecting the correction detection results.

[0046] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A dual-station pre-winding correction device for correcting the pre-winding of electrode strips, characterized in that, include: The base is used for mounting and securing the device. A clamping and correction module is used to clamp the electrode strip, and two of the clamping and correction modules are arranged at the front center of the base; A correction drive module is fixed to the upper end of the base, and the output end of the correction drive module is fixedly connected to the clamping correction module. A correction guide module is fixed to the front end of the base. The rear end of the clamping correction module is fixedly connected to the front end of the correction guide module, and the correction drive module drives the clamping correction module to move left and right along the correction guide module. The correction detection module is used to detect whether the correction drive module has driven the electrode on the clamping correction module into position, and the correction detection module is installed at the rear end of the base and is electrically connected to the correction drive module.

2. The dual-station pre-winding correction device according to claim 1, characterized in that, The clamping and correction module includes a drive roller, a clamping roller, a drive motor, a clamping drive assembly, and a fixed frame. The two ends of the drive roller are movably connected to the fixed frame, and the drive motor is installed at one end of the fixed frame. The output end of the drive motor is connected to the drive roller. The clamping drive assembly is installed on the upper part of the fixed frame, and the clamping roller is connected to the bottom of the clamping drive assembly and is positioned directly above the drive roller.

3. The dual-station pre-winding correction device according to claim 2, characterized in that, The pressing drive assembly includes a drive cylinder, a sensing plate, a guide rod, and a connecting frame. The two ends of the pressing roller are movably connected to the connecting frame. The drive cylinder is fixed to the upper end of the fixed frame, and the output end of the drive cylinder passes through the upper end of the fixed frame and is connected to the middle of the connecting frame. The lower end of the sensing plate is connected to the connecting frame, and the upper end of the sensing plate moves up and down within the fixed frame as the drive cylinder extends and retracts. The guide rod is located at both ends of the connecting frame, and the upper part of the guide rod is connected to the fixed frame.

4. The dual-station pre-winding correction device according to claim 3, characterized in that, The mounting bracket is provided with a groove and a linear bearing. The upper end of the sensing element is suspended in the groove, and a sensor is provided in the groove. The sensor detects the lifting position of the sensing element. The upper part of the guide rod is sleeved in the linear bearing.

5. A dual-station pre-winding correction device according to claim 2, characterized in that, The correction drive module includes a motor, a coupling, a lead screw nut, and a transmission block. The lead screw nut is connected to the output end of the motor through the coupling. The transmission block is fixed on the nut of the lead screw nut, and the bottom end of the transmission block is connected to the fixing frame of the clamping correction module.

6. A dual-station pre-winding correction device according to claim 5, characterized in that, The upper end of the base is provided with an elongated hole, and the lower part of the transmission block passes through the elongated hole and is connected to the fixing frame.

7. A dual-station pre-winding correction device according to claim 5, characterized in that, The lower end of the transmission block is provided with a snap-fit ​​block, the snap-fit ​​block is provided with a connecting through hole, the fixing frame is provided with a snap-fit ​​groove, the snap-fit ​​groove is provided with a fixing hole, and the snap-fit ​​block is snapped into the snap-fit ​​groove, and the connecting through hole is aligned with the fixing hole.

8. A dual-station pre-winding correction device according to claim 2, characterized in that, The correction and guidance module is equipped with a linear guide rail and sliders. The linear guide rail is fixed on the base, and multiple sliders are snapped onto the linear guide rail and fixed at both ends of the fixing frame.

9. A dual-station pre-winding correction device according to claim 1, characterized in that, The correction detection module includes a correction sensor, a sensor mounting plate, a fixed shaft, and a mounting base. The mounting base is connected to the base, and two mounting bases are respectively connected to the two ends of the fixed shaft. The two fixed shafts are respectively located at the upper and lower ends of the mounting base. The sensor mounting plate is connected to the fixed shaft, and the correction sensor is connected between the fixed shafts through the sensor mounting plate.

10. A dual-station pre-winding correction device according to claim 9, characterized in that, Two sets of correction sensors are provided, and the vertical distance between each set of correction sensors is greater than the distance between the drive roller and the pressure roller.

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