Battery cell diaphragm ending and winding mechanism

Abstract

The utility model discloses a battery cell diaphragm ending and winding mechanism, and relates to the technical field of battery cell production equipment. The device comprises a first tail rotating mechanism and a second tail rotating mechanism which are oppositely arranged, and each of the first tail rotating mechanism and the second tail rotating mechanism comprises a supporting seat, a front-back moving assembly, a rotating assembly and a battery cell clamping assembly; the front-back moving assembly comprises a moving plate and a first driving device, the moving plate is connected to the top of the supporting seat in a front-back sliding mode, and the first driving device is used for driving the moving plate to slide front and back on the supporting seat; the rotating assembly comprises a main shaft and a second driving device, the main shaft is rotatably connected to the moving plate, and the second driving device is used for driving the main shaft to rotate; and the battery cell clamping assembly is mounted at the output end of the main shaft. According to the utility model, the diaphragm ending winding can be automatically carried out on the battery cell subjected to the lamination process, and the device can adapt to the battery cells with different models and sizes.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of battery cell production equipment, especially relates to a battery cell diaphragm tail winding mechanism. BACKGROUND

[0002] In the production process of lithium battery, the laminating process is to cut the positive and negative electrodes into small pieces and combine them with the diaphragm to form small battery cell monomers, and then the small battery cell monomers are stacked and connected in parallel to form a large battery cell. The tail winding of the battery cell diaphragm is an important process after the laminating of the battery cell, and through the final winding treatment of the diaphragm, the diaphragm is wrapped on the outer layer of the battery cell to protect the battery cell. Traditionally, the tail winding of the battery cell diaphragm is performed manually, and then the tail is glued. This traditional manual production method has low efficiency, and the standards of tail winding and gluing are different due to the individual differences of workers, which reduces the pass rate of the battery cell. The automatic tail winding mechanism needs to meet the tail winding of the diaphragm of different models and sizes of battery cells. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a battery cell diaphragm tail winding mechanism which can automatically wind the diaphragm of the battery cell after the laminating process and adapt to battery cells of different models and sizes.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] A battery cell diaphragm tail winding mechanism comprises a first tail turning mechanism and a second tail turning mechanism arranged oppositely, and the first tail turning mechanism and the second tail turning mechanism each comprise a support seat, a front-back moving assembly, a rotating assembly and a battery cell clamping assembly. The front-back moving assembly comprises a moving plate and a first driving device, the moving plate is connected to the top of the support seat in a front-back sliding manner, and the first driving device is used to drive the moving plate to slide forward and backward on the support seat. The rotating assembly comprises a main shaft and a second driving device, the main shaft is rotatably connected to the moving plate, and the second driving device is used to drive the main shaft to rotate. The battery cell clamping assembly is installed on the output end of the main shaft.

[0006] In some embodiments, the first tail turning mechanism and the second tail turning mechanism further comprise a linear guide rail, the linear guide rail is installed on the top of the support seat and arranged along the length direction of the support seat, the moving plate is installed on the sliding block of the linear guide rail, and the linear guide rail improves the movement precision and stability of the moving plate.

[0007] In some embodiments, the first tail turning mechanism and the second tail turning mechanism further comprise a front-back moving limiting assembly, the front-back moving limiting assembly is arranged on the top of the support seat and located at both ends of the linear guide rail, and the front-back moving limiting assembly comprises a limiting block and an oil pressure buffer, the limiting block is installed on the support seat, and the oil pressure buffer is installed on the limiting block. The oil pressure buffer can buffer and dampen the moving plate and its components.

[0008] Compared with the prior art, the utility model at least realizes following beneficial effect:

[0009] After the electric core completes the lamination process in the lamination machine, the electric core is clamped to the tail rotation station composed of the first tail rotation mechanism and the second tail rotation mechanism through the clamp mechanism, first, the first drive device drives the moving plate to slide on the support seat, according to the position and model size of the electric core, the rotating assembly and the electric core clamping assembly are driven to move a proper distance, the electric core clamping assembly clamps the electric core, then the second drive device drives the main shaft to rotate a certain number of turns, thereby driving the electric core to rotate to wrap the diaphragm on the outer layer of the electric core, ensuring the structural integrity and chemical stability of the electric core, the utility model effectively improves the production quality and production efficiency of the electric core. BRIEF DESCRIPTION OF DRAWINGS

[0010] One or more embodiments of the utility model will now be described, by way of example only, with reference to the accompanying drawings:

[0011] Figure 1 It is the structural schematic diagram of the embodiment of the application;

[0012] Figure 2 It is the structural schematic diagram of the second tail rotation mechanism of the embodiment of the application;

[0013] Figure 3 It is the structural schematic diagram of another view of the second tail rotation mechanism of the embodiment of the application.

[0014] The reference numerals in the drawing are: 1, first tail rotation mechanism;2, second tail rotation mechanism;3, support seat;4, front and back moving assembly;41, moving plate;411, first connecting plate;412, second connecting plate;4121, waist-shaped hole;4122, mounting block;4123, tension bearing;42, first drive device;5, rotating assembly;51, main shaft;52, driven synchronous wheel;6, electric core clamping assembly;61, parallel finger air cylinder;62, mounting plate;63, clamp plate;7, linear guide rail;8, front and back moving limiting assembly;81, limiting block;82, oil pressure buffer;9, floating joint. DETAILED DESCRIPTION

[0015] The utility model will be described in detail below with reference to the exemplary embodiments in the drawings. But it should be known that the application can be realized through various different forms, and should not be understood as limiting to the embodiments set forth herein. The embodiments are provided herein to make the disclosure of the application more complete, and to fully convey the concept of the application to the person skilled in the art.

[0016] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "several", "a plurality of" is two or more, unless otherwise explicitly specified and limited. In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include the first and second features directly contacting, or the first and second features not directly contacting but contacting through another feature between them. Moreover, the first feature "above", "above" and "above" of the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0017] As Figure 1 shown, the end winding mechanism of the battery cell separator provided by the embodiment of the present application comprises a first tail rotating mechanism 1 and a second tail rotating mechanism 2 arranged oppositely, and the first tail rotating mechanism 1 and the second tail rotating mechanism 2 each comprise a support seat 3, a front-back moving assembly 4, a rotating assembly 5 and a battery cell clamping assembly 6.

[0018] The front and back moving assembly 4 comprises a moving plate 41 and a first driving device 42, the moving plate 41 is slidably connected on the top of the support base 3, and the first driving device 42 is used for driving the moving plate 41 to slide on the support base 3; the rotating assembly 5 comprises a main shaft 51 and a second driving device, the main shaft 51 is rotatably connected on the moving plate 41, and the second driving device is used for driving the main shaft 51 to rotate; the cell clamping assembly 6 is installed on the output end of the main shaft 51, and the cell clamping assembly 6 is used for clamping the cell.

[0019] The working process of the utility model is as follows: after the cell completes the lamination process in the lamination machine, the cell is clamped to the tail rotating station composed of the first tail rotating mechanism 1 and the second tail rotating mechanism 2 through the clamp mechanism, first, the first driving device 42 drives the moving plate 41 to slide on the support base 3, according to the position and size of the cell, thereby driving the rotating assembly 5 and the cell clamping assembly 6 to move to the appropriate position and clamp the cell, so that the cell of different sizes can be adapted, then the second driving device drives the main shaft 51 to rotate a certain number of turns, thereby driving the cell to rotate to wrap the diaphragm on the outer layer of the cell, the diaphragm protects the cell, ensures the structural integrity and chemical stability of the cell, so as to facilitate subsequent work such as tail glue sticking, the utility model effectively improves the quality and production efficiency of the cell.

[0020] Reference Figures 2-3 The first tail rotating mechanism 1 and the second tail rotating mechanism 2 further comprise a linear guide rail 7 and a front and back moving limiting assembly 8, the linear guide rail 7 is installed on the top of the support base 3 and is arranged along the length direction of the support base 3, the moving plate 41 is installed on the sliding block of the linear guide rail 7, and the linear guide rail 7 improves the movement precision and movement stability of the moving plate 41; the front and back moving limiting assembly 8 is arranged on the top of the support base 3 and is located at the two ends of the linear guide rail 7, the front and back moving limiting assembly 8 comprises a limiting block 81 and an oil buffer 82, the limiting block 81 is installed on the support base 3, and the oil buffer 82 is installed on the limiting block 81, and the oil buffer 82 can buffer and dampen the moving plate 41 and components thereof.

[0021] Reference Figure 2 The bottom of the moving plate 41 is vertically fixed with a first connecting plate 411; the first driving device 42 is a cylinder, the first driving device 42 is installed on the support base 3, a floating joint 9 is arranged on the piston rod of the first driving device 42, and the floating joint 9 is connected with the first connecting plate 411.

[0022] The second driving device comprises a servo motor, a driving sprocket, a driven sprocket 52 and a synchronous belt (the servo motor, the driving sprocket and the synchronous belt are not shown in the drawings), the driven sprocket 52 is coaxially connected to the input end of the main shaft 51, the driving sprocket is in driving connection with the driven sprocket 52 through the synchronous belt, the output shaft of the servo motor is coaxially connected with the driving sprocket, the servo motor can realize accurate position control, the rotation number of the driven sprocket 52 and the main shaft 51 is accurately controlled through the servo motor, so that the battery cell can be smoothly wrapped with the diaphragm.

[0023] Further, the bottom of the moving plate 41 is also vertically fixed with a second connecting plate 412, the second connecting plate 412 is transversely provided with a waist-shaped hole 4121, the waist-shaped hole 4121 is connected with a mounting block 4122 through a screw, the mounting block 4122 is rotatably connected with a tension bearing 4123, and the tension bearing 4123 is located beside the synchronous belt. The position of the tension bearing 4123 on the waist-shaped hole 4121 can be adjusted by loosening or tightening the screw, and the tension of the synchronous belt can be adjusted by adjusting the position of the tension bearing 4123.

[0024] Reference Figures 2-3 The battery cell clamping assembly 6 comprises parallel finger air cylinders 61, mounting plates 62 and clamping plates 63, the mounting plates 62 are fixed on the two finger parts of the parallel finger air cylinders 61, and the clamping plates 63 are fixed on the mounting plates 62. The parallel finger air cylinders 61 can drive the clamping plates 63 to open and clamp, the battery cell is clamped by the cooperation of the clamping plates 63 of the first tail turning mechanism 1 and the clamping plates 63 of the second tail turning mechanism 2, and the battery cell with different thicknesses can be applied.

[0025] It should be understood that all the above embodiments are exemplary but not limiting, any modification, equivalent change and modification made by the person skilled in the art to the above described specific embodiments under the concept of the utility model still belong to the range of the technical scheme of the utility model.

Claims

1. A battery cell separator winding mechanism, characterized in that: The device includes a first tail-rotating mechanism and a second tail-rotating mechanism arranged opposite to each other. Each of the first and second tail-rotating mechanisms includes a support base, a forward and backward moving assembly, a rotating assembly, and a cell clamping assembly. The forward and backward moving assembly includes a moving plate and a first driving device. The moving plate is slidably connected to the top of the support base, and the first driving device drives the moving plate to slide forward and backward on the support base. The rotating assembly includes a main shaft and a second driving device. The main shaft is rotatably connected to the moving plate, and the second driving device drives the main shaft to rotate. The cell clamping assembly is installed at the output end of the main shaft.

2. The cell separator winding mechanism according to claim 1, characterized in that: The first tail-turning mechanism and the second tail-turning mechanism also include a linear guide rail, which is installed on the top of the support base and arranged along the length of the support base; the movable plate is installed on the slider of the linear guide rail.

3. The cell separator winding mechanism according to claim 2, characterized in that: The first tail rotation mechanism and the second tail rotation mechanism also include a front and rear movement limiting component. The front and rear movement limiting component is disposed on the top of the support base and located at both ends of the linear guide rail. The front and rear movement limiting component includes a limiting block and a hydraulic damper. The limiting block is installed on the support base, and the hydraulic damper is installed on the limiting block.

4. The cell separator winding mechanism according to claim 1 or 2, characterized in that: The bottom of the movable plate is vertically fixed with a first connecting plate; the first driving device is a cylinder, which is installed on the support base, and its piston rod is provided with a floating joint, which is connected to the first connecting plate.

5. The cell separator winding mechanism according to claim 1, characterized in that: The second drive device includes a servo motor, a driving synchronous pulley, a driven synchronous pulley, and a synchronous belt. The driven synchronous pulley is coaxially connected to the input end of the main shaft. The driving synchronous pulley and the driven synchronous pulley are connected by a synchronous belt drive. The output shaft of the servo motor is coaxially connected to the driving synchronous pulley.

6. The cell separator winding mechanism according to claim 5, characterized in that: The bottom of the movable plate is also vertically fixed with a second connecting plate. The second connecting plate has a horizontally arranged waist-shaped hole. The waist-shaped hole is connected to a mounting block by screws. A tension bearing is rotatably connected to the mounting block. The tension bearing is located next to the synchronous belt. The tension bearing can increase or decrease the tension of the synchronous belt by adjusting its own position.

7. The cell separator winding mechanism according to claim 1, characterized in that: The battery cell clamping assembly includes a parallel finger cylinder, a mounting plate, and a clamping plate. The mounting plate is fixed to the two finger portions of the parallel finger cylinder, and the clamping plate is fixed to the mounting plate.

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