Battery cell winding device

Abstract

The utility model relates to the technical field of battery cell processing, and discloses a battery cell winding device which comprises a base, the bearing plate is mounted on the base and is used as a mounting carrier of the winding assembly, the core winding cylinder, the expanding and shrinking assembly, the pulling-away assembly, the cutting assembly, the monitoring assembly and the collecting assembly; the winding core cylinder is in running fit with the bearing plate; and the expanding and shrinking assembly is arranged in the core winding cylinder and is used for supporting the battery core. By arranging the expanding and shrinking assembly, after the diaphragm, the positive electrode and the negative electrode are wound into the battery cell, the diameter of the core winding cylinder can be changed by driving the expanding and shrinking assembly, so that the diaphragm in the battery cell cannot be in tight contact with the outer side of the core winding cylinder, and the problem that the diaphragm on the innermost layer of the battery cell is abraded when being pulled away from a rigid winding needle is avoided; the qualified rate of battery cells is increased, the practicability of equipment is improved, and actual application and operation are facilitated.

Description

Technical Field

[0001] This utility model relates to the field of battery cell processing technology, and more specifically to a battery cell winding device. Background Technology

[0002] A battery cell is the basic energy storage unit of a battery, consisting of a positive electrode, a negative electrode, an electrolyte, and a separator. It stores and releases electrical energy through electrochemical reactions, and its performance directly affects the energy density, safety, cycle life, and cost of the battery system.

[0003] The shortcomings of the existing technology: In the process of winding the battery cell in the existing technology, rigid winding needles are usually used to wind the separator, positive electrode and negative electrode. After the winding is completed, when the battery cell with the separator, positive electrode and negative electrode processed is pulled off the rigid winding needles, the innermost separator of the battery cell is easily damaged, which reduces the yield of the battery cell, reduces the practicality of the equipment, and is not conducive to actual application and operation. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a battery cell winding device to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a battery cell winding device, comprising:

[0006] Base;

[0007] The receiving plate, mounted on the base, serves as a mounting carrier for winding assemblies, core cylinders, expansion assemblies, extraction assemblies, cutting assemblies, monitoring assemblies, and collection assemblies.

[0008] A core tube, wherein the core tube is rotatably engaged with a receiving plate;

[0009] The support assembly, located inside the winding cylinder, is used to support the battery cell;

[0010] The expansion and contraction component includes:

[0011] The second motor is installed inside one end of the winding drum;

[0012] A lead screw, which is rotatably engaged with the interior of the other end of the core cylinder, and the second motor is fixedly connected to the lead screw;

[0013] Slider, multiple sliders are threadedly engaged with lead screw;

[0014] The slots are equidistantly spaced on both sides of the core cylinder;

[0015] The grooved rods are installed at equal intervals on both sides of the inner wall of the core cylinder, and the two grooved rods are located on both sides of the groove opening;

[0016] L-shaped square bar, wherein the L-shaped square bar is slidably fitted with a grooved bar;

[0017] An arc-shaped plate, wherein the arc-shaped plate slides into the groove, and both sides of the inner side of the arc-shaped plate are fixedly connected to an L-shaped square rod;

[0018] The connecting rods are all rotatably engaged with both sides of the slider, and the ends of the connecting rods away from the slider are rotatably engaged with the arc-shaped plate.

[0019] Preferably, the expansion and contraction component further includes:

[0020] The baffles are evenly spaced on the lead screw, and the two baffles are located on both sides of the slider;

[0021] The controllers are all fixedly installed on the inside of the baffle.

[0022] Preferably, the extraction component includes:

[0023] The first electric telescopic rod is installed on the outside of the receiving plate;

[0024] An L-shaped rod is installed on the piston rod of the first electric telescopic rod, and the L-shaped rod slides in conjunction with the circular groove opened on the receiving plate;

[0025] A U-shaped release plate is installed on one end of an L-shaped round rod, and the U-shaped release plate is located on the outside of one end of the core cylinder.

[0026] Preferably, the winding assembly includes:

[0027] The cylinder rotates at equal intervals on the inner side of the receiving plate;

[0028] A pressure roller, which is rotatably coupled to a receiving plate and is located between a winding cylinder and a core cylinder;

[0029] L-shaped plates are installed on the outside of the receiving plate;

[0030] The first motor is mounted on the L-shaped plate, and the output end of the first motor is fixedly connected to the shaft end of one of the pressure rollers;

[0031] The gears are all fixedly mounted on the shaft end of the pressure roller, and the gears are located inside the L-shaped plate;

[0032] The pulleys are respectively installed on the shaft ends of the pressure roller and the core cylinder, and the two pulleys are connected by a synchronous belt drive.

[0033] Tension rollers are all installed on the inner side of the receiving plate, and the tension rollers are located between the pressure roller and the core cylinder.

[0034] Preferably, the cutting component includes:

[0035] First connecting plate;

[0036] The second electric telescopic rod is installed on the receiving plate via the first connecting plate;

[0037] The knife is mounted on the piston of the second electric telescopic rod;

[0038] The cutting plate is installed inside the receiving plate and below the blade.

[0039] Preferably, the monitoring component includes:

[0040] Second connecting plate;

[0041] The monitor is mounted on the receiving plate via a second connecting plate;

[0042] The wireless transceiver is installed at the bottom of the second connection board.

[0043] Preferably, the collection component includes:

[0044] Material collection hopper;

[0045] The inserts are all installed on one side of the collecting hopper;

[0046] The slots are all located on the inner side of the receiving plate, and the inserts slide in conjunction with the slots.

[0047] The beneficial effects of this utility model are:

[0048] 1. In this utility model, by setting a stretching and contracting component, after the diaphragm, positive electrode and negative electrode are wound into a battery cell, the diameter of the winding cylinder can be changed by driving the stretching and contracting component, so that the diaphragm inside the battery cell cannot be in tight contact with the outer side of the winding cylinder, avoiding the problem of wear when the innermost diaphragm of the battery cell is pulled off the rigid winding needle, increasing the pass rate of the battery cell, increasing the practicality of the equipment, and facilitating practical application and operation.

[0049] 2. In this utility model, by setting up a detachment component, it is convenient to detach the battery cell from the winding cylinder, preventing manual operation and reducing the workload of workers; by setting up a winding component, the battery cell material is wound; by setting up a cutting component, the battery cell material is cut to ensure that subsequent winding operations can be carried out normally; by setting up a collection component, the disassembly operation is realized, making it convenient to pack and organize the battery cells piled up in the collection hopper. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model from the front view.

[0051] Figure 2 This is a schematic diagram of the overall appearance structure of this utility model in the rear view.

[0052] Figure 3 This is a partially enlarged cross-sectional view of the expansion and contraction assembly inside the core cylinder of this utility model.

[0053] Figure 4 This is a disassembled view of the collection component of this utility model.

[0054] Explanation of reference numerals in the attached figures:

[0055] 1. Base; 2. Receiving plate; 3. Winding assembly; 301. Winding cylinder; 302. Pressure roller; 303. L-shaped plate; 304. First motor; 305. Gear; 306. Pulley; 307. Tension roller; 4. Core cylinder; 5. Support and contraction assembly; 501. Second motor; 502. Lead screw; 503. Slider; 504. Groove; 505. Arc plate; 506. Connecting rod; 507. L-shaped square rod; 508. Grooved rod; 509. Baffle; 510. Controller; 6. Extraction assembly; 601. First electric telescopic rod; 602. L-shaped round rod; 603. U-shaped ejector plate; 7. Cutting assembly; 701. First connecting plate; 702. Second electric telescopic rod; 703. Knife; 704. Cutting plate; 8. Monitoring assembly; 801. Second connecting plate; 802. Monitor; 803. Wireless transceiver; 9. Collection assembly; 901. Collection hopper; 902. Insert block; 903. Slot. Detailed Implementation

[0056] The following will be combined with the appendix Figures 1 to 4 The technical solutions in the embodiments of this utility model are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0057] Please see Figure 1-4 This utility model embodiment provides a battery cell winding device, including:

[0058] Base 1;

[0059] The receiving plate 2 is mounted on the base 1 and serves as the mounting carrier for the winding assembly 3, the core cylinder 4, the expansion assembly 5, the extraction assembly 6, the cutting assembly 7, the monitoring assembly 8, and the collection assembly 9.

[0060] Core tube 4, core tube 4 is rotatably fitted with receiving plate 2;

[0061] The support assembly 5 is installed inside the core cylinder 4 and is used to support the battery cell.

[0062] The expansion and contraction component 5 includes:

[0063] The second motor 501 is installed inside one end of the core drum 4;

[0064] The lead screw 502 is rotatably engaged with the internal part of the other end of the core cylinder 4, and the second motor 501 is fixedly connected to the lead screw 502.

[0065] Slider 503, multiple sliders 503 are threadedly engaged with lead screw 502;

[0066] The slots 504 are equally spaced on both sides of the core cylinder 4;

[0067] The grooved rods 508 are equally spaced on both sides of the inner wall of the core cylinder 4, and the two grooved rods 508 are located on both sides of the groove opening 504.

[0068] L-shaped square rod 507, which is in sliding fit with groove rod 508;

[0069] The arc-shaped plate 505 is slidably fitted with the slot 504, and both sides of the inner side of the arc-shaped plate 505 are fixedly connected to the L-shaped square rod 507.

[0070] The connecting rod 506 is rotatably engaged with both sides of the slider 503, and the end of the connecting rod 506 away from the slider 503 is rotatably engaged with the arc plate 505.

[0071] The baffles 509 are equally spaced on the lead screw 502, and the two baffles 509 are located on both sides of the slider 503;

[0072] The controller 510 is fixedly installed on the inside of the baffle 509.

[0073] In practical application, this embodiment uses a forward-driven second motor 501 to rotate a lead screw 502 within the core cylinder 4, causing multiple sliders 503 to slide on the lead screw 502. When a slider 503 encounters a controller 510 on two baffles 509, the second motor 501 stops rotating forward and, in conjunction with a connecting rod 506, swings, causing the arc-shaped plate 505 to move from inside the slot 504 to the outside of the core cylinder 4. Simultaneously, the L-shaped square rod 507 slides in a limited position on the slot rod 508. The movement range of the arc plate 505 is restricted, and then the diaphragm, positive electrode and negative electrode are wound on the arc plate 505 in multiple external support states. After the winding is completed, the excess material is cut off by the cutting component 7 so that the diaphragm, positive electrode and negative electrode form a battery cell. Then the second motor 501 is driven in reverse to retract the multiple arc plates 505 from the outside of the core cylinder 4 into the slot 504, so that the multiple arc plates 505 are separated from the diaphragm inside the battery cell. Then the battery cell on the core cylinder 4 is extracted without damage by the extraction component 6.

[0074] In this embodiment, after the diaphragm, positive electrode, and negative electrode are wound into a battery cell, the diameter of the winding cylinder 4 can be changed by driving the expansion and contraction assembly 5. This prevents the diaphragm inside the battery cell from making tight contact with the outer side of the winding cylinder 4, thus avoiding wear when the innermost diaphragm of the battery cell is pulled off the rigid winding needle. This increases the yield rate of the battery cell, enhances the practicality of the equipment, and is beneficial for actual application and operation.

[0075] Please see Figure 1-4 In a preferred embodiment of this utility model, the extraction component 6 includes:

[0076] The first electric telescopic rod 601 is installed on the outside of the receiving plate 2;

[0077] The L-shaped rod 602 is installed on the piston rod of the first electric telescopic rod 601, and the L-shaped rod 602 slides in conjunction with the circular groove opened on the receiving plate 2.

[0078] The U-shaped release plate 603 is installed on one end of the L-shaped round rod 602, and the U-shaped release plate 603 is located on the outside of one end of the core cylinder 4.

[0079] In practical application, this embodiment drives the first electric telescopic rod 601, thereby causing the L-shaped rod 602 to slide on the receiving plate 2, which in turn causes the U-shaped release plate 603 to move, thus detaching the battery cell from the winding drum 4.

[0080] This embodiment uses a detachment component 6 to facilitate the detachment of the battery cell from the winding drum 4, preventing manual operation and reducing the workload of workers.

[0081] Please see Figure 1-4 In a preferred embodiment of this utility model, the winding assembly 3 includes:

[0082] The cylinder 301 rotates at equal intervals on the inner side of the receiving plate 2;

[0083] The pressure roller 302 is rotatably engaged with the receiving plate 2, and the pressure roller 302 is located between the winding drum 301 and the core drum 4;

[0084] L-shaped plate 303 is installed on the outside of the receiving plate 2;

[0085] The first motor 304 is mounted on the L-shaped plate 303, and the output end of the first motor 304 is fixedly connected to the shaft end of one of the pressure rollers 302.

[0086] Gears 305 are all fixedly installed on the shaft end of pressure roller 302, and gears 305 are located inside L-shaped plate 303;

[0087] The pulleys 306 are respectively installed on the shaft ends of the pressure roller 302 and the core cylinder 4, and the two pulleys 306 are connected by a synchronous belt drive.

[0088] Tension rollers 307 are all installed on the inner side of the receiving plate 2, and the tension rollers 307 are located between the pressure roller 302 and the core cylinder 4.

[0089] In practical application, this embodiment drives the first motor 304 on the L-shaped plate 303 to rotate the upper pressure roller 302, which in turn drives the two pulleys 306 to mesh and rotate, thus rotating the lower pressure roller 302. This causes the two pressure rollers 302 to rotate in opposite directions, simultaneously squeezing and pushing the positive electrode, diaphragm, negative electrode, and diaphragm on the four winding cylinders 301 forward. At the same time, the first motor 304 drives the two pulleys 306 to rotate, which in turn drives the core cylinder 4 to rotate. In conjunction with the two tension rollers 307, the tension of the battery cell material is controlled, and the battery cell material is wound.

[0090] Please see Figure 1-4 In a preferred embodiment of this utility model, the cutting component 7 includes:

[0091] First connecting plate 701;

[0092] The second electric telescopic rod 702 is installed on the receiving plate 2 via the first connecting plate 701;

[0093] The blade 703 is mounted on the piston of the second electric telescopic rod 702;

[0094] The cutting plate 704 is installed inside the receiving plate 2 and located below the blade 703.

[0095] In practical application, this embodiment drives the second electric telescopic rod 702 to move the blade 703 downwards, and works in conjunction with the cutting plate 704 to facilitate the cutting of the battery cell material, so as to ensure that the subsequent winding operation can be carried out normally.

[0096] Please see Figure 1-4 In a preferred embodiment of this utility model, the monitoring component 8 includes:

[0097] Second connecting plate 801;

[0098] The monitor 802 is mounted on the receiving plate 2 via the second connecting plate 801;

[0099] The wireless transceiver 803 is installed at the bottom of the second connection board 801.

[0100] In practical applications, this embodiment uses a monitor 802 at the bottom of the second connecting board 801 and a wireless transceiver 803 to monitor the cell processing in real time.

[0101] Please see Figure 1-4 In a preferred embodiment of this utility model, the collecting component 9 includes:

[0102] 901 material collection hopper;

[0103] All insert blocks 902 are installed on one side of the collecting hopper 901;

[0104] Slots 903 are all located on the inner side of the receiving plate 2, and the insert block 902 slides into the slot 903.

[0105] In practical application, when the wound battery cells are introduced into the collecting hopper 901 and are piled up, they can be disassembled from the slot 903 on the receiving plate 2 by means of the insert block 902 on one side of the collecting hopper 901, so as to facilitate the packing and sorting of the battery cells piled up in the collecting hopper 901.

[0106] Based on the explanations and teachings in the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and any modifications and alterations to this utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A battery cell winding device, characterized in that: include: Base (1); The receiving plate (2) is mounted on the base (1) and serves as the mounting carrier for the winding assembly (3), the core cylinder (4), the expansion assembly (5), the extraction assembly (6), the cutting assembly (7), the monitoring assembly (8), and the collection assembly (9); Core cylinder (4), which is rotatably coupled with the receiving plate (2); The support assembly (5) is set inside the core cylinder (4) to support the battery cell; The expansion and contraction component (5) includes: The second motor (501) is installed inside one end of the core cylinder (4); A lead screw (502) is rotatably engaged with the other end of the core cylinder (4), and the second motor (501) is fixedly connected to the lead screw (502). Slider (503), a plurality of said sliders (503) are threadedly engaged with lead screw (502); The slots (504) are equally spaced on both sides of the core cylinder (4); The groove rods (508) are installed at equal intervals on both sides of the inner wall of the core cylinder (4), and the two groove rods (508) are located on both sides of the groove opening (504); L-shaped square rod (507), wherein the L-shaped square rod (507) is slidably engaged with the grooved rod (508); An arc-shaped plate (505) is slidably fitted with a groove (504), and both sides of the inner side of the arc-shaped plate (505) are fixedly connected to an L-shaped square rod (507). The connecting rod (506) is rotatably engaged with both sides of the slider (503), and the end of the connecting rod (506) away from the slider (503) is rotatably engaged with the arc plate (505).

2. The cell winding apparatus according to claim 1, characterized by: The expansion and contraction component (5) also includes: The baffles (509) are all equidistantly installed on the lead screw (502), and the two baffles (509) are located on both sides of the slider (503); The controller (510) is fixedly installed on the inside of the baffle (509).

3. The cell winding apparatus according to claim 1, characterized by: The extraction component (6) includes: The first electric telescopic rod (601) is installed on the outside of the receiving plate (2); An L-shaped rod (602) is installed on the piston rod of the first electric telescopic rod (601), and the L-shaped rod (602) slides in contact with the circular groove on the receiving plate (2). A U-shaped release plate (603) is installed on one end of an L-shaped round rod (602), and the U-shaped release plate (603) is located on the outside of one end of the core cylinder (4).

4. The cell winding apparatus according to claim 1, characterized by: The winding assembly (3) includes: The cylinder (301) rotates at equal intervals on the inner side of the receiving plate (2); Pressure roller (302), which is rotatably engaged with receiving plate (2), and the pressure roller (302) is located between winding cylinder (301) and core cylinder (4); L-shaped plate (303) is installed on the outside of the receiving plate (2); A first motor (304) is mounted on an L-shaped plate (303), and the output end of the first motor (304) is fixedly connected to the shaft end of one of the pressure rollers (302); Gears (305) are all fixedly installed on the shaft end of the pressure roller (302), and the gears (305) are located inside the L-shaped plate (303); Pulleys (306) are respectively installed on the shaft ends of the pressure roller (302) and the core cylinder (4), and the two pulleys (306) are connected by synchronous belt drive. Tension rollers (307) are all installed on the inner side of the receiving plate (2), and the tension rollers (307) are located between the pressure roller (302) and the core cylinder (4).

5. The cell winding apparatus according to claim 1, characterized by: The cutting component (7) includes: First connecting plate (701); The second electric telescopic rod (702) is installed on the receiving plate (2) via the first connecting plate (701); The knife (703) is mounted on the piston of the second electric telescopic rod (702); The cutting plate (704) is installed inside the receiving plate (2) and below the blade (703).

6. The cell winding apparatus according to claim 1, characterized by: The monitoring component (8) includes: Second connecting plate (801); The monitor (802) is mounted on the receiving plate (2) via the second connecting plate (801); A wireless transceiver (803) is mounted on the bottom of the second connection plate (801).

7. The cell winding apparatus according to claim 1, characterized by: The collection component (9) includes: Material collecting hopper (901); The insert blocks (902) are all installed on one side of the collecting hopper (901); The slots (903) are all opened on the inner side of the receiving plate (2), and the insert (902) slides in conjunction with the slot (903).

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