A lithium battery cell assembling device

Abstract

The application discloses a lithium battery cell assembling device and relates to the technical field of lithium battery production.The lithium battery cell assembling device comprises a rotating shaft, the rotating shaft is fixedly connected with a motor, rotating rings are rotatably connected to the outer sides of the two ends of the rotating shaft, the rotating shaft is rotatably connected with a shell through the rotating rings, a square hole is formed in the middle of the outer side of the rotating shaft, a round rod is slidably connected in the square hole, the round rod is fixedly connected with the extension end of a cylinder, a connecting rod is rotatably connected to the outer side of the round rod, a fixing rod is rotatably connected to the end of the connecting rod away from the round rod, a reset spring is fixedly connected to the outer side of the rotating shaft, and an arc plate is fixedly connected to the end of the reset spring away from the rotating shaft.The lithium battery cell assembling device can fix the starting position, can ensure that the pole piece and the diaphragm are neatly wound around the roll core from the beginning, can keep the relative position between each layer stable, can greatly reduce the layer offset phenomenon, and can improve the internal structure consistency of the battery.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lithium battery production, in particular to a lithium battery cell assembling device. BACKGROUND

[0002] Lithium ion power battery is a new type of high-energy battery developed successfully. The negative electrode of this battery is graphite and other materials, and the positive electrode is lithium iron phosphate, lithium cobaltate, lithium titanate, etc. It has entered the practical stage. Because of its high energy, high battery voltage, wide working temperature range, long storage life and other advantages, it has been widely used in various electrical appliances. The voltage of lithium power battery is 3 times that of nickel-cadmium battery and nickel-hydrogen battery, and nearly 2 times that of lead-acid battery. This is also an important reason why the specific energy of lithium ion power battery is high.

[0003] At the beginning of winding, the starting position of the pole piece and the diaphragm is easy to deviate, which can easily cause the short circuit phenomenon caused by the adhesion of positive and negative pole pieces. In addition, when winding the positive pole piece, diaphragm and negative pole piece, the contact between the cell pole piece and the diaphragm is not tight enough, so that the quality of the manufactured cell product is not high, and the service life is short. SUMMARY

[0004] To achieve the above purpose, the present application is realized by the following technical scheme: a lithium battery cell assembling device, comprising a base, a shell fixedly installed on the top of the base, a through hole is formed on the outer side of the shell, a feeding port is formed on the end of the shell away from the through hole, a motor is fixedly connected to the outer side of the shell, and a gas cylinder is rotatably connected to the end of the shell away from the motor;

[0005] A winding assembly is fixedly connected to the output end of the motor, and the winding assembly is located on the side close to the through hole.

[0006] A pressing assembly is rotatably connected to the inner wall of the shell.

[0007] A positioning assembly is rotatably connected to the inner wall of the shell.

[0008] A limiting assembly is rotatably connected to the inner wall of the shell. The winding assembly, the pressing assembly, the positioning assembly and the limiting assembly are arranged in the shell in sequence.

[0009] The winding assembly comprises a rotating shaft fixedly connected with the motor, rotating rings rotatably connected to the outer sides of the two ends of the rotating shaft, the rotating shaft rotatably connected with the shell through the rotating rings, a square hole formed in the middle of the outer side of the rotating shaft, a round rod slidably connected in the square hole, and the positive electrode plate, the diaphragm and the negative electrode plate placed in sequence and aligned, wherein the diaphragm is located between the positive electrode plate and the negative electrode plate. When the positive electrode plate and the negative electrode plate are attached, the positive electrode plate and the negative electrode plate are limited by the upper and lower ends of the pressing assembly, and then the cylinder drives the round rod to move away from the motor, so that the outer side connecting rod of the round rod is limited by the middle column, the fixed rod is extended towards the arc plate, the starting position of the electrode plate and the diaphragm on the winding assembly is clamped, and then the motor drives the rotating shaft to rotate, so that the electrode plate and the diaphragm start to wind outside the arc plate on both sides of the rotating shaft. By fixing the starting position, the electrode plate and the diaphragm can be wound around the winding core in order from the beginning, so that the relative position between each layer remains stable, greatly reducing the layer offset phenomenon, thereby improving the internal structure consistency of the battery. At the same time, by setting the reset spring, the arc plate can be attached to the outer side of the electrode plate and the diaphragm, the gap between the electrode plates can be reduced, the energy density of the battery can be improved, the round rod is fixedly connected with the extension end of the cylinder, the outer side of the round rod is rotatably connected with a connecting rod, the end of the connecting rod away from the round rod is rotatably connected with a fixed rod, the outer side of the rotating shaft is fixedly connected with a reset spring, the end of the reset spring away from the rotating shaft is fixedly connected with an arc plate, and the fixed rod is located at the interval between the arc plate and the rotating shaft.

[0010] Preferably, the number of limiting assemblies is multiple, the cylinder and the motor are located on the same axis, the inside of the shell is rotatably connected with a transmission belt, by setting the transmission belt, the electrode plate and the diaphragm can be wound at the same speed and rhythm, ensuring that each layer of electrode plate can be completely isolated by the diaphragm, thereby improving the safety and performance of the battery. At the same time, they can better cooperate with each other during the winding process, reduce the internal gap, thereby improving the mechanical strength of the battery, making it more stable during subsequent processing, transportation and use, and less likely to appear loose or deformed. The transmission belt is in transmission connection with the plurality of limiting assemblies, and the inner wall of the shell close to the limiting assembly is rotatably connected with a pressing wheel, and the pressing wheel is located above the limiting assembly.

[0011] Preferably, the number of reset springs is multiple, the plurality of reset springs are symmetrically arranged at the two ends of the rotating shaft, the number of arc plates is two, the two arc plates are symmetrically arranged with the rotating shaft as the center, the number of connecting rods is several, and the several connecting rods are symmetrically arranged with the rotating shaft as the center. The inside edge of the square hole is fixedly connected with a middle column, and the middle column and the connecting rod are alternately and uniformly distributed.

[0012] Preferably, the limiting assembly comprises a rotating shaft, the outer side of the rotating shaft is fixedly connected with a rotating drum, the outer side of the rotating drum is provided with inclined grooves, the inclined grooves are arranged at both ends of the rotating drum, the inclined grooves are uniformly distributed with the rotating shaft as the center, the inner side of the inclined groove is provided with a circular hole, the circular hole is located at one side close to the middle part of the rotating drum, the end part of the rotating shaft is fixedly connected with a gear, the motor drives the rotating shaft to rotate, the rotating shaft drives the arc plate to rotate, so as to wind the pole piece and the diaphragm, and then drive the limiting assembly to rotate, when the pole piece or the diaphragm deviates, the pole piece contacts the limiting block at the end part of the rotating drum and is extruded, the limiting block is stressed and moves in the direction of the fixed frame through the inclined groove, under the elastic force of the elastic rope, the limiting block drives the deviated pole piece and diaphragm to reset, which can effectively prevent the pole piece and diaphragm from deviating too much during winding, thereby avoiding the short circuit of the positive and negative poles, by arranging the limiting block, the movement track of the pole piece and the diaphragm is controlled, so that the opportunity of the pole piece and the diaphragm contacting the surrounding equipment components is reduced, the possibility of damage such as burr, scratch or tearing caused by mutual friction or collision is reduced, the gear is rotatably connected with the transmission belt, the end surface of the rotating drum is fixedly connected with the fixed frame, the middle part of the fixed frame is fixedly connected with the rotating shaft, the side close to the rotating drum of the fixed frame is provided with a guide groove, the outer side of the rotating shaft is fixedly connected with a conical block, the conical block is located at the interval between the fixed frame and the rotating drum, the inner wall of the inclined groove is slidably connected with the limiting block, the inner side of the circular hole is provided with an elastic rope, the number of limiting blocks is multiple, the multiple limiting blocks are symmetrically arranged with the elastic rope as the center, and the side close to the fixed frame of the conical block is provided with a limiting groove.

[0013] Preferably, the pressing assembly comprises a rotating rod, the number of the rotating rod is two, the rotating rod is rotatably connected with the inner wall of the shell, the outer middle part of the rotating rod is rotatably connected with a cylinder, the outer side of the cylinder is provided with an annular groove, the inner side of the annular groove is slidably connected with an annular block, the annular block has magnetism, and the middle part of the rotating rod has magnetism, the magnetism between the rotating rod and the annular block is the same, the outer side of the rotating rod is rotatably connected with a fixed frame, the fixed frame is located at the end part of the rotating rod, the rotating rod drives the cylinder to rotate, the cylinder drives the annular block to rotate, under the mutual repulsion between the annular block and the rotating rod, the cylinder drives the annular block to rotate, so that the annular block is extruded with the semicircular plate, the semicircular plate moves to the middle, so that the positive pole piece, the diaphragm and the negative pole piece are tightly attached, the good contact between the positive and negative pole pieces and the diaphragm is ensured, the manufacturing quality and performance of the battery cell are improved, and the problem of insufficient attachment is avoided, at the same time, the edge side of the annular block and the semicircular plate is in contact, so that the semicircular plate drives the extension plate to move to the middle, the extension plate symmetrically arranged above and below pushes the pole piece and the diaphragm outward, which can effectively prevent the generation of bubbles, and is helpful to enhance the attachment degree between the pole piece and the diaphragm, the end part of the fixed frame is fixedly connected with the semicircular plate, the both ends of the semicircular plate are fixedly connected with the fixed frame, the outer side of the semicircular plate is fixedly connected with the extension plate, and the extension plate is symmetrically arranged with the rotating rod as the center.

[0014] Preferably, the positioning assembly comprises a fixed seat fixedly connected with the inner wall of the shell, an intermediate rod fixedly connected with the end of the fixed seat away from the shell, a plurality of intermediate rods, a rotating plate rotatably connected with the end of the fixed seat, the end of the rotating plate away from the fixed seat being fixedly connected with the intermediate rod, the positive plate, the diaphragm and the negative plate passing through the space between the adjacent two intermediate rods in sequence, the elastic property of the compression spring being used to make the intermediate rod at the end of the rotating plate be located on the side away from the diaphragm of the upper and lower plates, at this time, the cleaning block outside the fixed cylinder cleans the plates and the diaphragm, which can effectively reduce the risk of short circuit of the battery, and also can remove the impurities that may interfere with the electrochemical reaction, so that the ion transmission and electrochemical reaction in the battery are more purely carried out between the designed active material and electrolyte, thereby improving the charge-discharge efficiency and cycle life of the battery, the outside middle of the intermediate rod being rotatably connected with the fixed cylinder, the outside of the fixed cylinder being fixedly connected with the cleaning block, the side edge of the rotating plate being fixedly connected with the compression spring, and the two ends of the compression spring being fixedly connected with the two rotating plates.

[0015] The application provides a lithium battery cell assembling device.

[0016] I. The lithium battery cell assembling device can ensure that the plates and diaphragm are neatly wound around the roll core from the beginning, so that the relative position between each layer remains stable, and the layer offset phenomenon is greatly reduced, thereby improving the internal structure consistency of the battery.

[0017] II. The lithium battery cell assembling device is provided with a reset spring, so that the arc plate is attached to the plates and diaphragm on the outside, the gap between the plates is reduced, and the energy density of the battery is improved.

[0018] III. The lithium battery cell assembling device is provided with a transmission belt, so that the plates and diaphragm can be wound at the same speed and rhythm, ensuring that each layer of plates can be completely isolated by the diaphragm, thereby improving the safety and performance of the battery.

[0019] IV. The lithium battery cell assembling device uses the elastic force of the elastic rope to drive the offset plates and diaphragm to reset, which can effectively prevent the plates and diaphragm from being excessively offset during winding, thereby avoiding the positive and negative short circuit.

[0020] V. The lithium battery cell assembling device controls the movement track of the plates and diaphragm through the limiting block, so that the opportunity of the plates and diaphragm contacting the surrounding equipment components is reduced, and the possibility of damage such as burr, scratch or tear caused by mutual friction or collision is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an external structure schematic diagram of the lithium battery cell assembling device.

[0022] Figure 2 Another side view of the application;

[0023] Figure 3 Another side view of the application;

[0024] Figure 4 Another side view of the application;

[0025] Figure 5 Another side view of the application;

[0026] Figure 6 Another side view of the application;

[0027] Figure 7 Another side view of the application;

[0028] Figure 8 Another side view of the application;

[0029] Figure 9 Another side view of the application;

[0030] Figure 10 Another side view of the application.

[0031] In the figure: 1, base; 2, shell; 3, winding assembly; 31, rotating shaft; 32, square hole; 33, round rod; 34, connecting rod; 35, fixed rod; 36, reset spring; 37, arc plate; 38, rotating ring; 39, middle column; 4, pressing assembly; 41, rotating rod; 42, cylinder; 43, ring groove; 44, ring block; 45, fixed frame; 46, semicircular plate; 47, extension plate; 5, positioning assembly; 51, fixed seat; 52, middle rod; 53, rotating plate; 54, fixed cylinder; 55, compression spring; 56, cleaning block; 6, limiting assembly; 61, rotating shaft; 62, rotating cylinder; 63, gear; 64, limiting block; 65, fixed frame; 66, inclined groove; 67, round hole; 68, conical block; 69, limiting groove; 610, guide groove; 611, elastic rope; 7, air cylinder; 8, motor; 9, through hole; 10, feeding port; 11, transmission belt; 12, pressing wheel. DETAILED DESCRIPTION

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0033] First embodiment, such as Figures 1 to 5 As shown, the present invention provides a technical solution: a lithium battery cell assembly device, including a base 1, a housing 2 fixedly installed on the top of the base 1, a through hole 9 opened on the outer side of the housing 2, a feed inlet 10 opened at the end of the housing 2 away from the through hole 9, a motor 8 fixedly connected to the outer side of the housing 2, and a cylinder 7 rotatably connected to the end of the housing 2 away from the motor 8.

[0034] The winding assembly 3 is fixedly connected to the output end of the motor 8, and the winding assembly 3 is located on the side near the through hole 9;

[0035] Pressing assembly 4 is rotatably connected to the inner wall of housing 2;

[0036] Positioning component 5 is rotatably connected to the inner wall of housing 2;

[0037] Limiting component 6 is rotatably connected to the inner wall of housing 2; winding component 3, pressing component 4, positioning component 5 and limiting component 6 are arranged sequentially inside housing 2;

[0038] The winding assembly 3 comprises a rotating shaft 31 fixedly connected with the motor 8, both ends of the rotating shaft 31 are rotatably connected with rotating rings 38, the rotating shaft 31 is rotatably connected with the shell 2 through the rotating rings 38, a square hole 32 is formed in the middle of the outer side of the rotating shaft 31, a round rod 33 is slidably connected in the square hole 32, the positive electrode sheet, the diaphragm and the negative electrode sheet are placed in order and aligned, the diaphragm is located between the positive electrode sheet and the negative electrode sheet, when the positive electrode sheet and the negative electrode sheet are attached, the positive electrode sheet and the negative electrode sheet are limited by the upper and lower ends of the pressing assembly 4, then the cylinder 7 drives the round rod 33 to move away from the motor 8, so that the outer side connecting rod 34 of the round rod 33 is limited by the middle column 39, the fixed rod 35 is extended towards the arc plate 37, the starting position of the electrode sheet and the diaphragm on the winding assembly 3 is clamped, then the motor 8 drives the rotating shaft 31 to rotate, so that the electrode sheet and the diaphragm start to wind outside the arc plate 37 on both sides of the rotating shaft 31, by fixing the starting position, the electrode sheet and the diaphragm can be wound around the winding core in order from the beginning, so that the relative position between each layer remains stable, greatly reducing the layer offset phenomenon, thereby improving the internal structure consistency of the battery, meanwhile, by setting the reset spring 36, the arc plate 37 is attached to the electrode sheet and the diaphragm outside, which can reduce the gap between the electrode sheets and improve the energy density of the battery, the round rod 33 is fixedly connected with the extension end of the cylinder 7, the outer side of the round rod 33 is rotatably connected with the connecting rod 34, the end of the connecting rod 34 away from the round rod 33 is rotatably connected with the fixed rod 35, the outer side of the rotating shaft 31 is fixedly connected with the reset spring 36, the end of the reset spring 36 away from the rotating shaft 31 is fixedly connected with the arc plate 37, and the fixed rod 35 is located at the interval between the arc plate 37 and the rotating shaft 31.

[0039] The number of limiting assemblies 6 is multiple, the cylinder 7 and the motor 8 are located on the same axis, the inside of the shell 2 is rotatably connected with a transmission belt 11, by setting the transmission belt 11, the electrode sheet and the diaphragm can be wound at the same speed and rhythm, ensuring that each layer of electrode sheet can be completely isolated by the diaphragm, thereby improving the safety and performance of the battery, and the electrode sheet and the diaphragm can better cooperate with each other during winding, reducing the internal gap, thereby improving the mechanical strength of the electrode sheet, making it more stable during subsequent processing, transportation and use, not prone to loose or deformation, the transmission belt 11 is drivingly connected with the plurality of limiting assemblies, the inner wall of the shell 2 close to the limiting assembly 6 is rotatably connected with a pressing wheel 12, and the pressing wheel 12 is located above the limiting assembly 6.

[0040] The number of reset springs 36 is multiple, the plurality of reset springs 36 are symmetrically arranged at both ends of the rotating shaft 31, the number of arc plates 37 is two, the two arc plates 37 are symmetrically arranged with the rotating shaft 31 as the center, the number of connecting rods 34 is several, the several connecting rods 34 are symmetrically arranged with the rotating shaft 31 as the center, the inside edge of the square hole 32 is fixedly connected with a middle column 39, and the middle column 39 and the connecting rods 34 are alternately and uniformly distributed.

[0041] The second embodiment is based on the first embodiment, please refer to Figures 6 to 8 As shown, the limiting assembly 6 includes a rotating shaft 61, the outer side of the rotating shaft 61 is fixedly connected with a rotating cylinder 62, the outer side of the rotating cylinder 62 is provided with an inclined groove 66, the inclined groove 66 is arranged at both ends of the rotating cylinder 62, the inclined groove 66 is uniformly distributed with the rotating shaft 61 as the center, the inside of the inclined groove 66 is provided with a circular hole 67, the circular hole 67 is located at one side close to the middle part of the rotating cylinder 62, the end of the rotating shaft 61 is fixedly connected with a gear 63, the motor 8 drives the rotating shaft 31 to rotate, the rotating shaft 31 drives the arc plate 37 to rotate, thereby winding the pole piece and the diaphragm, and further driving the limiting assembly 6 to rotate, when the pole piece or the diaphragm deviates, the pole piece contacts the limiting block 64 at the end of the rotating cylinder 62 and generates extrusion, the limiting block 64 is stressed to move in the direction of the fixed frame 65 in the inclined groove 66, under the action of the elastic force of the elastic rope 611, the limiting block 64 drives the deviated pole piece and diaphragm to reset, which can effectively prevent the pole piece and diaphragm from deviating too much during winding, thereby avoiding the situation of positive and negative short circuit, by setting the limiting block 64, the movement track of the pole piece and the diaphragm is controlled, so that the opportunity of the pole piece and the diaphragm contacting the surrounding equipment components is reduced, the possibility of damage such as burr, scratch or tearing caused by mutual friction or collision is reduced, the gear 63 is rotatably connected with the transmission belt 11, the end surface of the rotating cylinder 62 is fixedly connected with the fixed frame 65, the middle part of the fixed frame 65 is fixedly connected with the rotating shaft 61, the side close to the rotating cylinder 62 of the fixed frame 65 is provided with a guide groove 610, the outer side of the rotating shaft 61 is fixedly connected with a tapered block 68, the tapered block 68 is located at the interval between the fixed frame 65 and the rotating cylinder 62, the inner wall of the inclined groove 66 is slidably connected with the limiting block 64, the inside of the circular hole 67 is provided with the elastic rope 611, the number of the limiting blocks 64 is multiple, the multiple limiting blocks 64 are symmetrically arranged with the elastic rope 611 as the center, the side close to the fixed frame 65 of the tapered block 68 is provided with a limiting groove 69.

[0042] The third embodiment is based on the first and second embodiments, please refer to Figure 9As shown, the pressing assembly 4 comprises a rotating rod 41, the number of which is two, which is rotationally connected with the inner wall of the shell 2, and the outer middle part of the rotating rod 41 is rotationally connected with a cylinder 42, the outer side of the cylinder 42 is provided with an annular groove 43, the inner side of the annular groove 43 is slidably connected with a ring block 44, the ring block 44 has magnetism, and the middle part of the rotating rod 41 is magnetic, the magnetism between the rotating rod 41 and the ring block 44 is the same, the outer side of the rotating rod 41 is rotationally connected with a fixed frame 45, the fixed frame 45 is located at the end of the rotating rod 41, the rotating rod 41 drives the cylinder 42 to rotate, the cylinder 42 drives the ring block 44 to rotate, under the mutual repulsion between the ring block 44 and the rotating rod 41, the cylinder 42 drives the ring block 44 to rotate, so that the ring block 44 and the semicircular plate 46 are extruded, the semicircular plate 46 moves to the middle, so that the positive pole piece, the diaphragm and the negative pole piece are tightly attached, ensuring good contact between the positive and negative pole pieces and the diaphragm, improving the manufacturing quality and performance of the battery cell, avoiding the problem of insufficient attachment, and at the same time, the edge side of the ring block 44 and the semicircular plate 46 is in contact, so that the semicircular plate 46 drives the extension plate 47 to move to the middle, so that the extension plate 47 symmetrically arranged above and below pushes the pole piece and the diaphragm outward, which can effectively prevent the generation of bubbles, and at the same time, it helps to enhance the attachment degree between the pole piece and the diaphragm, the end of the fixed frame 45 is fixedly connected with the semicircular plate 46, the semicircular plate 46 is fixedly connected with both ends of the fixed frame 45, and the outer side of the semicircular plate 46 is fixedly connected with the extension plate 47, which is symmetrically arranged around the rotating rod 41.

[0043] The fourth embodiment, please refer to Figure 10 As shown, the positioning assembly 5 comprises a fixed seat 51, which is fixedly connected with the inner wall of the shell 2, and the end of the fixed seat 51 away from the shell 2 is fixedly connected with an intermediate rod 52, the number of which is multiple, the end of the fixed seat 51 is rotationally connected with a rotating plate 53, and the end of the rotating plate 53 away from the fixed seat 51 is fixedly connected with the intermediate rod 52, the positive pole piece, the diaphragm and the negative pole piece pass through the space between the adjacent two intermediate rods 52 in sequence, and the elastic property of the compression spring 55 is used to make the intermediate rod 52 at the end of the rotating plate 53 located on the side of the upper and lower pole pieces away from the diaphragm, at this time, the cleaning block 56 on the outer side of the fixed cylinder 54 cleans the pole piece and the diaphragm, which can effectively reduce the risk of short circuit of the battery, and also can remove the impurities that may interfere with the electrochemical reaction, so that the ion transmission and electrochemical reaction in the battery are more purely carried out between the designed active material and electrolyte, thereby improving the charge and discharge efficiency and cycle life of the battery, the outer middle part of the intermediate rod 52 is rotationally connected with a fixed cylinder 54, the outer side of the fixed cylinder 54 is fixedly connected with a cleaning block 56, the side of the rotating plate 53 is fixedly connected with a compression spring 55, and the two ends of the compression spring 55 are fixedly connected with the two rotating plates 53.

[0044] In use, the positive electrode sheet, the diaphragm and the negative electrode sheet are placed in order and aligned, wherein the diaphragm is located between the positive electrode sheet and the negative electrode sheet, the cylinder 7 drives the round rod 33 to move away from the motor 8, so that the outer connecting rod 34 of the round rod 33 drives the fixed rod 35 to extend towards the arc plate 37 under the limiting action of the middle column 39, so that the starting position of the electrode sheet and the diaphragm on the winding assembly 3 is clamped, then the motor 8 drives the rotating shaft 31 to rotate, so that the electrode sheet and the diaphragm begin to wind outside the arc plate 37 on both sides of the rotating shaft 31, by fixing the starting position, it can ensure that the electrode sheet and the diaphragm are neatly wound around the winding core from the beginning.

[0045] The rotating rod 41 drives the cylinder 42 to rotate, the cylinder 42 drives the ring block 44 to rotate, under the mutual repulsion between the ring block 44 and the rotating rod 41, the cylinder 42 drives the ring block 44 to rotate so that the ring block 44 is extruded between the ring block 44 and the semicircular plate 46, the semicircular plate 46 moves to the middle, so that the positive electrode sheet, the diaphragm and the negative electrode sheet are tightly attached.

[0046] The motor 8 drives the rotating shaft 31 to rotate, the rotating shaft 31 drives the arc plate 37 to rotate, so that the electrode sheet and the diaphragm are wound, and further drive the limiting assembly 6 to rotate, when the electrode sheet or the diaphragm deviates, the electrode sheet contacts and is extruded with the limiting block 64 at the end of the rotating cylinder 62, the limiting block 64 is forced to move in the direction of the fixed frame 65 through the inclined groove 66, under the elastic force of the elastic rope 611, the limiting block 64 drives the deviated electrode sheet and diaphragm to reset, which can effectively prevent the electrode sheet and diaphragm from deviating excessively during winding.

[0047] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art and related fields without creative labor should belong to the protection scope of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A lithium battery cell assembly device, characterized in that, include: The base (1) has a housing (2) fixedly installed on its top. The housing (2) has a through hole (9) on its outer side and a feed inlet (10) on one end away from the through hole (9). The housing (2) has a motor (8) fixedly connected to its outer side and a cylinder (7) rotatably connected to one end away from the motor (8). The winding assembly (3) is fixedly connected to the output end of the motor (8) and the winding assembly (3) is located on the side close to the through hole (9); A pressing assembly (4) is rotatably connected to the inner wall of the housing (2); Positioning component (5), which is rotatably connected to the inner wall of housing (2); The limiting component (6) is rotatably connected to the inner wall of the housing (2); the winding component (3), pressing component (4), positioning component (5) and limiting component (6) are arranged sequentially inside the housing (2); The winding assembly (3) includes a rotating shaft (31), which is fixedly connected to a motor (8). A rotating ring (38) is rotatably connected to the outer sides of both ends of the rotating shaft (31). The rotating shaft (31) is rotatably connected to the housing (2) through the rotating ring (38). A square hole (32) is opened in the middle of the outer side of the rotating shaft (31). A round rod (33) is slidably connected inside the square hole (32). The round rod (33) is fixedly connected to the extended end of the cylinder (7). A connecting rod (34) is rotatably connected to the outer side of the round rod (33). A fixing rod (35) is rotatably connected to the end of the connecting rod (34) away from the round rod (33). A return spring (36) is fixedly connected to the outer side of the rotating shaft (31). An arc plate (37) is fixedly connected to the end of the return spring (36) away from the rotating shaft (31). The fixing rod (35) is located at the interval between the arc plate (37) and the rotating shaft (31). The housing (2) is rotatably connected to a transmission belt (11), which is connected to multiple limiting components. The housing (2) is rotatably connected to a pressure roller (12) near the inner wall of the limiting component (6), which is located above the limiting component (6). The cylinder (7) drives the round rod (33) to move away from the motor (8), so that the connecting rod (34) on the outside of the round rod (33) is limited by the middle column (39), and drives the fixed rod (35) to extend towards the arc plate (37), so that the starting position of the electrode and diaphragm on the winding assembly (3) is clamped.

2. The lithium battery cell assembly apparatus according to claim 1, characterized in that: There are multiple limiting components (6), and the cylinder (7) and the motor (8) are located on the same axis.

3. The lithium battery cell assembly apparatus according to claim 2, characterized in that: There are multiple return springs (36), which are symmetrically arranged at both ends of the rotating shaft (31). There are two arc plates (37), which are symmetrically arranged with the rotating shaft (31) as the center. There are several connecting rods (34), which are symmetrically arranged with the rotating shaft (31) as the center. An intermediate column (39) is fixedly connected to the inner edge of the square hole (32), and the intermediate column (39) and the connecting rod (34) are evenly distributed alternately.

4. The lithium battery cell assembly apparatus according to claim 3, characterized in that: The limiting component (6) includes a rotating shaft (61), and a rotating cylinder (62) is fixedly connected to the outside of the rotating shaft (61). An inclined groove (66) is opened on the outside of the rotating cylinder (62). The inclined groove (66) is arranged at both ends of the rotating cylinder (62). The inclined groove (66) is evenly distributed around the rotating shaft (61).

5. A lithium battery cell assembly device according to claim 4, characterized in that: The inclined groove (66) has a circular hole (67) inside. The circular hole (67) is located on one side near the middle of the rotating drum (62). A gear (63) is fixedly connected to the end of the rotating shaft (61). The gear (63) is rotatably connected to the transmission belt (11). A fixing frame (65) is fixedly connected to the end face of the rotating drum (62). The middle part of the fixing frame (65) is fixedly connected to the rotating shaft (61). A guide groove (610) is provided on the side of the fixing frame (65) near the rotating drum (62).

6. A lithium battery cell assembly apparatus according to claim 5, characterized in that: A conical block (68) is fixedly connected to the outer side of the rotating shaft (61). The conical block (68) is located at the interval between the fixed frame (65) and the rotating cylinder (62). A limit block (64) is slidably connected to the inner wall of the inclined groove (66). An elastic rope (611) is provided inside the round hole (67). There are multiple limit blocks (64). The multiple limit blocks (64) are symmetrically arranged with the elastic rope (611) as the center. A limit groove (69) is opened on the side of the conical block (68) close to the fixed frame (65).

7. A lithium battery cell assembly apparatus according to claim 1, characterized in that: The pressing assembly (4) includes a rotating rod (41), and there are two rotating rods (41). The rotating rod (41) is rotatably connected to the inner wall of the housing (2). A cylinder (42) is rotatably connected to the middle of the outer side of the rotating rod (41). An annular groove (43) is opened on the outer side of the cylinder (42). An annular block (44) is slidably connected inside the annular groove (43).

8. A lithium battery cell assembly apparatus according to claim 7, characterized in that: A fixed frame (45) is rotatably connected to the outside of the rotating rod (41). The fixed frame (45) is located at the end of the rotating rod (41). A semi-circular plate (46) is fixedly connected to the end of the fixed frame (45). The semi-circular plate (46) is fixedly connected to both ends of the fixed frame (45). An extension plate (47) is fixedly connected to the outside of the semi-circular plate (46). The extension plate (47) is symmetrically arranged with the rotating rod (41) as the center.

9. A lithium battery cell assembly apparatus according to claim 1, characterized in that: The positioning component (5) includes a fixed seat (51), which is fixedly connected to the inner wall of the housing (2). A middle rod (52) is fixedly connected to one end of the fixed seat (51) away from the housing (2). There are multiple middle rods (52). A rotating plate (53) is rotatably connected to the end of the fixed seat (51). The end of the rotating plate (53) away from the fixed seat (51) is fixedly connected to the middle rod (52).

10. A lithium battery cell assembly apparatus according to claim 9, characterized in that: A fixed cylinder (54) is rotatably connected to the middle of the outer side of the intermediate rod (52), and a cleaning block (56) is fixedly connected to the outer side of the fixed cylinder (54). A compression spring (55) is fixedly connected to the side of the rotating plate (53), and the two ends of the compression spring (55) are fixedly connected to the two rotating plates (53).

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