Assembling structure of battery pole piece and roll core
By designing the assembly structure of the battery electrode plate and the roll core, and using the motor and the pneumatic cylinder to achieve automatic loading and close integration of the electrode plate, the problems of pole plate offset and low production efficiency in the prior art are solved, and the quality and efficiency of the battery core are improved.
Patent Information
- Application Number
- CN202421740090.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-22
AI Technical Summary
During the winding process of the existing battery core device, the pole sheet needs to be pre-installed, which is easily offset after pre-installation, affecting the core quality, and the automatic loading of the positive and negative electrode sheets cannot be achieved, resulting in low production efficiency.
An assembly structure of the battery electrode sheet and the core is designed, and the rotating rod is driven by the motor and the pneumatic cylinder control pressing block is realized to automatically unwind and cut off the entire coil electrode sheet, and combined with the automatic winding of the diaphragm, the automatic loading and tight coupling of the positive and negative electrode sheets is realized to form a cylindrical structure.
Automatic loading of electrode sheets is realized, the preparation quality and production efficiency of the roll core are improved, pre-installation and transfer steps are avoided, and the tight bonding and efficient manufacturing of the roll core are ensured.
Smart Images
Figure CN223140811U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of battery production, in particular to an assembly structure of a battery pole piece and a core roll. Background Technique
[0002] The battery core roll is an important part of the battery. In the battery production process, the battery core roll is an important process flow. It is mainly composed of a positive electrode sheet, a negative electrode sheet, and a separator. The positive and negative electrode sheets and the separator are tightly combined together by winding to form a cylindrical or flat structure.
[0003] The existing battery core roll device mainly consists of a positive electrode sheet, a negative electrode sheet, a separator, an electric motor, and a winding roller. In the winding process, first, one end of the separator is wound around the winding roller, and then through the operation of the electric motor, the winding roller rotates, so that the separator can be automatically wound. During the winding process, the positive electrode sheet and the negative electrode sheet are respectively adhered to both ends of the separator. Through the uniform rotation of the winding roller, the positive and negative electrode sheets and the separator can be tightly combined together to form a cylindrical structure, and finally, the winding manufacture of the battery core is completed.
[0004] In the existing battery core roll device, during the winding process of the battery core roll, the pole piece needs to be pre-installed. During the transfer process after pre-installation, the pole piece is prone to shift in position, thus affecting the quality of the preparation of the core roll. Moreover, since the automatic feeding of the positive and negative electrode sheets cannot be realized, the production efficiency is greatly reduced. Therefore, an assembly structure of a battery pole piece and a core roll is proposed for the above problems. Content of the Utility Model
[0005] In order to make up for the deficiencies of the prior art and solve the problems raised in the above background technique, the utility model proposes an assembly structure of a battery pole piece and a core roll.
[0006] The technical solution adopted by the present utility model to solve its technical problems is as follows: An assembly structure of a battery electrode sheet and a core includes two support plates; a workbench is fixedly connected to the tops of the two support plates, a vertical plate is installed on the side wall of the workbench, two rectangular slots are opened on the vertical plate, limiting plates are fixedly connected to both sides of the inner walls of the ports of the two rectangular slots, a fixing plate is welded to the outside of the port of each rectangular slot, a first motor is installed on the fixing plate, a rotating rod is connected to the output end of the first motor, a limiting disk is sleeved at one end of the rotating rod, a threaded hole is opened at the other end of the rotating rod, a fixing screw is inserted into the threaded hole, and a locking cap is sleeved at the bottom end of the fixing screw. A whole roll of electrode sheet is sleeved on the rotating rod. Two grooves and two slots are respectively opened on the workbench, and the grooves are communicated with the slots. A cutting knife is fixedly connected to one side of the top port of the groove, a limiting baffle is fixedly connected to the other side of the port of the groove, a cross plate is fixedly connected to the vertical plate, two first pneumatic cylinders are installed on the cross plate, a first pneumatic rod is assembled to the acting end of the first pneumatic cylinder, a pressing block is fixedly connected to the bottom end of the first pneumatic rod, and the pressing block is arranged between the two limiting plates. During the winding process of the battery core, first, one end of the separator is passed through between the L-shaped frame and the winding roller, and its end is fixed on the winding roller. The second motor is started, so that the winding roller can automatically wind the separator. During the winding of the separator, the first motor is started at the same time, so that the rotating rod rotates, and thus the whole roll of electrode sheet sleeved on the rotating rod can be unwound. When one end of the electrode sheet is transported to contact the limiting baffle, through the operation of the first pneumatic cylinder, the first pneumatic rod drives the pressing block to move vertically downward, so that the electrode sheet can be pressed downward to fit with the separator. During the downward pressing process, with the cooperation of the cutting knife, the electrode sheet can be cut off, so that the automatic feeding operation of the positive and negative electrode sheets can be realized. As the winding operation progresses, during the winding process, the positive and negative electrode sheets can be tightly combined with the separator to form a cylindrical structure, and finally the winding manufacture of the battery core is completed. Thus, during the battery core winding process, the positive and negative electrode sheets can be automatically fed without steps such as preloading and transferring, which can ensure the quality of the preparation of the core and greatly improve the production efficiency.
[0007] Preferably, movable blocks are arranged in the two grooves, a connecting frame is inserted into the two slots in a matching manner, and both top ends of the connecting frame are correspondingly fixedly connected to the bottom sides of the movable blocks. A rod hole is opened in the connecting frame, a fixing rod is inserted into the rod hole, and the top end of the fixing rod is fixedly connected to the bottom side wall of the workbench. A retaining cap is fixedly connected to the bottom end of the fixing rod, a spring is fixedly connected between the retaining cap and the connecting frame, and the spring is sleeved on the fixing rod. During the winding process, through the operation of the first pneumatic cylinder, when the pressing block presses downward, through the cooperation of the movable block, the connecting frame and the spring, the electrode sheet can be more tightly attached to the separator, and thus can better cooperate with the core winding operation.
[0008] Preferably, a through groove is formed in the vertical plate, a fixing frame is fixedly connected to the port of the through groove, a second motor is installed at the bottom end of the fixing frame, the output end of the second motor is connected with a rotating shaft, a winding roller is sleeved on the rotating shaft, an L-shaped frame is fixed on the winding roller, and a guide plate is fixedly connected to one end of the workbench close to the winding roller. During the winding process, the second motor is started to rotate the winding roller, so that the diaphragm can be automatically wound, and the subsequent core winding operation can be completed.
[0009] Preferably, a second pneumatic cylinder is installed at the top end of the fixing frame, a second pneumatic rod is assembled at the acting end of the second pneumatic cylinder, a push plate is fixedly connected to the end of the second pneumatic rod, a peeling frame is fixedly connected to the bottom end of the push plate, and the peeling frame is sleeved on the winding roller. After the battery core is manufactured, the second pneumatic cylinder is started to drive the peeling frame to move by the second pneumatic rod, so as to push the cylindrical battery core wound on the winding roller, and finally the battery core is separated from the winding roller, which is convenient for taking materials.
[0010] Preferably, two detection probes are installed on the bottom side of the horizontal plate, a controller is installed on the top side of the horizontal plate, and the detection probes are electrically connected to the controller. In the winding process, by setting the detection probes, the feeding state of the core can be detected, and the detected feeding information is transmitted to the controller. The controller receives the command and starts the first motor and the first pneumatic cylinder to start working, so as to realize the pressing and cutting operation after feeding first.
[0011] The beneficial effects of the present utility model are as follows:
[0012] 1. During the winding process of the battery core of the present utility model, the second motor is started, so that the winding roller can automatically wind the diaphragm. During the winding of the diaphragm, the first motor is started to rotate the rotating rod, so that the whole roll of electrode sheet sleeved on the rotating rod can be unwound. When one end of the electrode sheet is conveyed to contact with the limit baffle, through the operation of the first pneumatic cylinder, the first pneumatic rod drives the pressing block to move vertically downward, so that the electrode sheet can be pressed downward to fit with the diaphragm. During the downward pressing process, with the cooperation of the cutting knife, the electrode sheet can be cut off, so that the automatic feeding operation of the positive and negative electrode sheets can be realized. With the progress of the winding operation, during the winding process, the positive and negative electrode sheets and the diaphragm can be tightly combined together to form a cylindrical structure, and finally the winding manufacturing of the battery core is completed. Therefore, during the battery core winding process, the positive and negative electrode sheets can be automatically fed without preloading, transferring and other steps, so that the quality of the battery core preparation can be guaranteed, and the production efficiency is greatly improved;
[0013] 2. After the battery core of the present utility model is manufactured, start the second pneumatic cylinder to drive the stripping frame to move by the second pneumatic rod, so as to be able to push the cylindrical battery core wound on the winding roller, and finally the battery core is separated from the winding roller, which is convenient for taking materials. Description of the Drawings
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0015] Figure 1 It is a front view three-dimensional structure schematic diagram of the winding device as a whole;
[0016] Figure 2 It is a side view three-dimensional structure schematic diagram of the winding device as a whole;
[0017] Figure 3 It is a sectional three-dimensional structure schematic diagram of the pole piece automatic feeding mechanism;
[0018] Figure 4 It is a sectional three-dimensional structure schematic diagram of the workbench;
[0019] Figure 5 It is a three-dimensional structure schematic diagram of the stripping mechanism.
[0020] In the figure: 1, support plate; 2, workbench; 3, vertical plate; 4, rectangular groove; 5, limiting plate; 6, fixing plate; 7, first motor; 8, rotating rod; 9, locking cap; 10, fixing screw; 11, limiting disc; 12, groove; 13, slot; 14, movable block; 15, connecting frame; 16, fixing rod; 17, anti-detaching cap; 18, spring; 19, cutting knife; 20, limiting baffle; 21, cross plate; 22, first pneumatic cylinder; 23, second pneumatic rod; 24, pressing block; 25, through groove; 26, fixing frame; 27, second motor; 28, winding roller; 29, L-shaped frame; 30, second pneumatic cylinder; 31, second pneumatic rod; 32, push plate; 33, stripping frame; 34, guiding plate; 35, detection probe; 36, controller. Detailed Embodiments
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some of the embodiments of the present utility model, rather than all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.
[0022] Please refer to Figures 1-4 As shown in the figure, an assembly structure of a battery electrode sheet and a coil core includes two support plates 1; a workbench 2 is fixedly connected to the tops of the two support plates 1, a vertical plate 3 is installed on the side wall of the workbench 2, and two rectangular slots 4 are opened on the vertical plate 3. Limiting plates 5 are fixedly connected to both sides of the inner wall of the port of the two rectangular slots 4. A fixing plate 6 is welded to the outside of the port of each rectangular slot 4. A first motor 7 is installed on the fixing plate 6. The output end of the first motor 7 is connected to a rotating rod 8. A limiting disk 11 is sleeved on one end of the rotating rod 8. A threaded hole is opened on the other end of the rotating rod 8. A fixing screw 10 is inserted into the threaded hole, and a locking cap 9 is sleeved on the bottom end of the fixing screw 10. A whole roll of electrode sheet is sleeved on the rotating rod 8. Two grooves 12 and two slots 13 are respectively opened on the workbench 2, and the groove 12 is communicated with the slot 13. A cutting knife 19 is fixedly connected to one side of the top port of the groove 12, and a limiting baffle 20 is fixedly connected to the other side of the port of the groove 12. A cross plate 21 is fixedly connected to the vertical plate 3. Two first pneumatic cylinders 22 are installed on the cross plate 21. The acting end of the first pneumatic cylinder 22 is equipped with a first pneumatic rod 23. The bottom end of the first pneumatic rod 23 is fixedly connected to a pressing block 24, and the pressing block 24 is arranged between the two limiting plates 5. During operation, during the winding process of the battery coil core, first, one end of the diaphragm is passed through between the L-shaped frame 29 and the winding roller 28, and its end is fixed on the winding roller 28. The second motor 27 is started, so that the winding roller 28 can automatically wind the diaphragm. During the winding process of the diaphragm, the first motor 7 is started at the same time, so that the rotating rod 8 rotates, so that the whole roll of electrode sheet sleeved on the rotating rod 8 can be unwound. When one end of the electrode sheet is transported to contact the limiting baffle 20, through the operation of the first pneumatic cylinder 22, the first pneumatic rod 23 drives the pressing block 24 to move vertically downward, so that the electrode sheet can be pressed downward to fit with the diaphragm. During the downward pressing process, with the cooperation of the cutting knife 19, the electrode sheet can be cut off, so that the automatic feeding operation of the positive and negative electrode sheets can be realized. As the winding operation progresses, during the winding process, the positive and negative electrode sheets can be tightly combined with the diaphragm to form a cylindrical structure, and finally the winding manufacturing of the battery core is completed. Thus, during the battery coil core process, the electrode sheets do not need pre-installation, transfer and other steps to realize the automatic feeding of the positive and negative electrode sheets, which can ensure the quality of the preparation of the coil core and greatly improve the production efficiency.
[0023] Please refer to Figure 4As shown in the figure, there are movable blocks 14 arranged in two grooves 12, and a connecting frame 15 is inserted and fitted in two slots 13. Both top ends of the connecting frame 15 are fixedly connected to the bottom side of the movable block 14. A rod hole is formed in the connecting frame 15, and a fixing rod 16 is inserted through the rod hole. The top end of the fixing rod 16 is fixedly connected to the bottom side wall of the workbench 2, and a retaining cap 17 is fixedly connected to the bottom end of the fixing rod 16. A spring 18 is fixedly connected between the retaining cap 17 and the connecting frame 15, and the spring 18 is sleeved on the fixing rod 16. During operation, during the winding process, when the pressing block 24 is pressed downward by the operation of the first pneumatic cylinder 22, through the cooperation of the movable block 14, the connecting frame 15 and the spring 18, the electrode sheet and the diaphragm can be fitted more closely, and thus the operation of the winding core can be better coordinated.
[0024] Please refer to Figure 1 and Figure 5 As shown in the figure, a through groove 25 is formed in the vertical plate 3. A fixing frame 26 is fixedly connected to the port of the through groove 25. A second motor 27 is installed at the bottom end of the fixing frame 26. The output end of the second motor 27 is connected to a rotating shaft. A winding roller 28 is sleeved on the rotating shaft. An L-shaped frame 29 is fixed on the winding roller 28. A guide plate 34 is fixedly connected to one end of the workbench 2 close to the winding roller 28. A second pneumatic cylinder 30 is installed at the top end of the fixing frame 26. A second pneumatic rod 31 is assembled at the acting end of the second pneumatic cylinder 30. A push plate 32 is fixedly connected to the end of the second pneumatic rod 31. A stripping frame 33 is fixedly connected to the bottom end of the push plate 32, and the stripping frame 33 is sleeved on the winding roller 28. During operation, after the battery winding core is manufactured, the second pneumatic cylinder 30 is started, so that the second pneumatic rod 31 drives the stripping frame 33 to move, and thus the cylindrical battery winding core wound on the winding roller 28 can be pushed, and finally the battery winding core is separated from the winding roller 28, which is convenient for taking materials.
[0025] Please refer to Figure 1 As shown in the figure, two detection probes 35 are installed on the bottom side of the cross plate 21, and a controller 36 is installed on the top side of the cross plate 21. The detection probe 35 and the controller 36 are electrically connected. During operation, in the winding process, by setting the detection probe 35, the model of the detection probe 35 is 5P12, which can detect the feeding state of the winding core and transmit the detected feeding information to the controller 36. The model of the controller 36 is STM32. The controller 36 receives the command and starts the first motor 7 and the first pneumatic cylinder 22 to start working, thus realizing that the pressing and cutting operation can only be carried out after feeding.
[0026] Working principle: In the existing battery core winding device, during the winding process of the battery core, the electrode sheets need to be pre-installed. During the transfer process after pre-installation, the electrode sheets are prone to shift in position, thus affecting the quality of the core preparation. Moreover, due to the inability to achieve automatic feeding of the positive and negative electrode sheets, the production efficiency is greatly reduced. Therefore, in view of the above problems, an assembly structure for battery electrode sheets and cores is proposed. During the winding process of the battery core, first, one end of the separator is passed through between the L-shaped frame 29 and the winding roller 28, and its end is fixed on the winding roller 28. The second motor 27 is started, so that the winding roller 28 can automatically wind the separator. During the winding process of the separator, the first motor 7 is started at the same time, causing the rotating rod 8 to rotate, so that the whole roll of electrode sheets sleeved on the rotating rod 8 can be unwound. When one end of the electrode sheet is transported to contact the limit baffle 20, through the operation of the first pneumatic cylinder 22, the first pneumatic rod 23 drives the pressing block 24 to move vertically downward, so that the electrode sheet can be pressed downward to fit with the separator. During the downward pressing process, with the cooperation of the cutting knife 19, the electrode sheet can be cut off, so that the automatic feeding operation of the positive and negative electrode sheets can be realized. As the winding operation progresses, during the winding process, the positive and negative electrode sheets and the separator can be tightly combined together to form a cylindrical structure, and finally the winding manufacturing of the battery core is completed. Thus, during the battery core winding process, the electrode sheets do not need steps such as pre-installation and transfer, and the automatic feeding of the positive and negative electrode sheets can be realized, which can ensure the quality of the core preparation and greatly improve the production efficiency. After the battery core manufacturing is completed, the second pneumatic cylinder 30 is started, so that the second pneumatic rod 31 drives the peeling frame 33 to move, and then the cylindrical battery core wound on the winding roller 28 can be pushed, and finally the battery core is separated from the winding roller 28, which is convenient for taking the material.
[0027] In the description of this specification, the description referring to terms such as "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0028] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.
Claims
1. An assembly structure of a battery electrode sheet and a winding core, characterized in that: It includes two support plates (1); the tops of the two support plates (1) are fixedly connected in cooperation with a workbench (2), a vertical plate (3) is installed on the side wall of the workbench (2), two rectangular grooves (4) are formed in the vertical plate (3), limiting plates (5) are fixedly connected to both sides of the inner wall of the port of each of the two rectangular grooves (4), a fixing plate (6) is welded to the outside of the port of each rectangular groove (4), a first motor (7) is installed on the fixing plate (6), the output end of the first motor (7) is connected to a rotating rod (8), a limiting disc (11) is sleeved at one end of the rotating rod (8), a screw hole is formed at the other end of the rotating rod (8), a fixing screw (10) is inserted into the screw hole, and a locking cap (9) is sleeved at the bottom end of the fixing screw (10). A whole roll of electrode sheets is sleeved on the rotating rod (8). Two grooves (12) and two slots (13) are respectively formed in the workbench (2), and the grooves (12) communicate with the slots (13). Movable blocks (14) are arranged in the two grooves (12), a connecting frame (15) is inserted into the two slots (13) in a matching manner, and both top ends of the connecting frame (15) are fixedly connected to the bottom sides of the movable blocks (14). A rod hole is formed in the connecting frame (15), a fixing rod (16) is inserted into the rod hole, and the top end of the fixing rod (16) is fixedly connected to the bottom side wall of the workbench (2). An anti - detachment cap (17) is fixedly connected to the bottom end of the fixing rod (16), a spring (18) is fixedly connected between the anti - detachment cap (17) and the connecting frame (15), and the spring (18) is sleeved on the fixing rod (16).
2. The assembly structure of a battery electrode sheet and a winding core according to claim 1, wherein: A cutting knife (19) is fixedly connected to one side of the top port of the groove (12), a limiting baffle (20) is fixedly connected to the other side of the port of the groove (12), a cross plate (21) is fixedly connected to the vertical plate (3), two first pneumatic cylinders (22) are installed on the cross plate (21), a first pneumatic rod (23) is assembled at the acting end of the first pneumatic cylinder (22), a pressing block (24) is fixedly connected to the bottom end of the first pneumatic rod (23), and the pressing block (24) is arranged between the two limiting plates (5).
3. The assembly structure of a battery electrode sheet and a winding core according to claim 1, characterized in that: A through - slot (25) is formed in the vertical plate (3), a fixing frame (26) is fixedly connected to the port of the through - slot (25), a second motor (27) is installed at the bottom end of the fixing frame (26), the output end of the second motor (27) is connected to a rotating shaft, a winding roller (28) is sleeved on the rotating shaft, an L - shaped frame (29) is fixed on the winding roller (28), and a guiding plate (34) is fixedly connected to one end of the workbench (2) close to the winding roller (28).
4. The assembly structure of a battery electrode sheet and a winding core according to claim 3, characterized in that: A second pneumatic cylinder (30) is installed at the top end of the fixing frame (26), and a second pneumatic rod (31) is assembled at the acting end of the second pneumatic cylinder (30).
5. The assembly structure of a battery electrode sheet and a core according to claim 4, characterized in that: A push plate (32) is fixedly connected to the end of the second pneumatic rod (31), a peeling frame (33) is fixedly connected to the bottom end of the push plate (32), and the peeling frame (33) is sleeved on the winding roller (28).
6. The assembly structure of a battery electrode sheet and a winding core according to claim 2, characterized in that: Two detection probes (35) are installed on the bottom side of the horizontal plate (21), a controller (36) is installed on the top side of the horizontal plate (21), and the detection probes (35) are electrically connected to the controller (36).