Battery cell winding equipment for secondary lithium ion battery production

Abstract

The utility model relates to the field of battery production, in particular to battery cell winding equipment for secondary lithium ion battery production, which comprises a supporting plate and the like. According to the battery cell winding equipment for secondary lithium ion battery production, the supporting plate can actively pick up a pole piece and a diaphragm conveyed from the pole piece and diaphragm conveyor and upwards stretch the picked pole piece and diaphragm to be aligned with the core plate conveyor, and the supporting plate is matched with the supporting rod to actively receive a core plate conveyed from the core plate conveyor, so that the core plate is automatically wound on the pole piece and diaphragm. The core plates are automatically aligned and placed on the pole pieces and the diaphragms, the winding work of the core plates, the pole pieces and the diaphragms is automatically completed through a third electric rotating shaft and an electric telescopic clamping block, and finally the redundant pole pieces and the diaphragms are cut off through a cutting mechanism, so that the aligned placement, winding and cutting work of the core plates, the pole pieces and the diaphragms can be fully automatically completed. The technical problems that an operator manually carries out core plate placement work, the risk of being damaged by clamping exists, and the qualification rate of battery core winding products is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of battery production, and in particular to a winding equipment for secondary lithium-ion battery cell production. Background Technology

[0002] In the production process of secondary lithium-ion batteries, cell winding is a key step. The main step is to wind the electrode sheets and separator rolls onto the core board to form the cell structure. During this process, after the electrode sheet and separator conveyor releases the electrode sheets and separator rolls, the operator needs to manually place the core board onto the released electrode sheets and separator rolls. Relying on the adhesion between the electrode sheets and separator rolls and the core board, an electric rotating shaft, in conjunction with telescopic clamps, automatically clamps the stacked core board, electrode sheets, and separator rolls and automatically performs the winding operation. During this process, each placement of the core board requires manual operation by the operator. Therefore, there is a risk of injury from being pinched by the telescopic clamps due to improper operation when manually placing the core board. Furthermore, if the core board placed manually by the operator deviates, the wound cell will be scrapped because it does not meet the production specifications, resulting in material waste. Utility Model Content

[0003] To overcome the drawbacks of manual placement of core boards by operators, which not only poses a risk of injury from being pinched but also affects the pass rate of the wound cells, this utility model provides a winding device for secondary lithium-ion battery production cells.

[0004] The technical solution is as follows: A secondary lithium-ion battery cell winding equipment includes a mounting frame, an electrode separator conveyor, electric conveying rollers, a core board conveyor, separator plates, a second electric lifting slider, a first electric rotating shaft, a pallet, a third electric rotating shaft, an electric telescopic clamp, and a cutting mechanism; the electrode separator conveyor and two electric conveying rollers are sequentially mounted on the mounting frame; the core board conveyor is mounted on the mounting frame, and the core board conveyor is located above the electrode separator conveyor; several separator plates are fixedly connected to the conveyor belt of the core board conveyor; the mounting frame... A second electric lifting slider is installed on the frame; a first electric rotating shaft is rotatably connected to the second electric lifting slider; a tray aligned with the discharge port of the electrode diaphragm conveyor is fixed to the first electric rotating shaft; a suction cavity structure is opened inside the tray, and several suction holes connecting to the suction cavity structure are opened on the surface of the tray; two third electric rotating shafts are installed on the mounting frame; electric telescopic blocks are fixed to the third electric rotating shafts, and the tray is initially located between the two electric telescopic blocks; a cutting mechanism for cutting off excess electrodes and diaphragms is installed on the mounting frame.

[0005] As a preferred technical solution of this utility model, a first electric lifting slider is installed on the mounting frame, and the first electric lifting slider is located between the electrode diaphragm conveyor and two electric conveying rollers; a pressure roller is rotatably connected to the first electric lifting slider.

[0006] As a preferred technical solution of this utility model, each partition plate of the core plate conveyor is provided with an inclined structure to guide the core plate to slide down towards the pallet.

[0007] As a preferred embodiment of this utility model, a second electric rotating shaft is installed on the front and rear sides of the tray; a support rod for supporting the core plate is fixedly connected to the second electric rotating shaft.

[0008] As a preferred technical solution of this utility model, each support rod is provided with a positioning slot for positioning the core board.

[0009] As a preferred technical solution of this utility model, the cutting mechanism consists of an electric push rod, a moving cutter and a stationary cutter; the electric push rod is mounted on the mounting frame; the moving cutter is fixedly connected to the telescopic end of the electric push rod; and the stationary cutter is fixedly connected to the mounting frame and aligned below the moving cutter.

[0010] As a preferred technical solution of this utility model, a discharge ramp is fixedly connected to the mounting frame, and the discharge ramp is aligned directly below the two electric telescopic blocks.

[0011] Beneficial Effects: This utility model discloses a cell winding device for secondary lithium-ion battery production. The pallet actively picks up the electrodes and separators conveyed from the electrode and separator conveyor, stretches them upwards to align with the core board conveyor, and the pallet, in conjunction with the support rod, actively receives the core board conveyed from the core board conveyor. It then automatically aligns and places the core board onto the electrodes and separators. The winding process between the core board and the electrodes and separators is automatically completed by a third electric rotating shaft and an electric telescopic clamping block. Finally, a cutting mechanism cuts off any excess electrodes and separators, thus achieving fully automated alignment, placement, winding, and cutting of the core board and the electrodes and separators. This utility model solves the technical problem that manual placement of core boards by operators not only carries the risk of injury from being pinched but also affects the yield rate of the wound cells. Attached Figure Description

[0012] Figure 1 A schematic diagram illustrating the structure of this utility model;

[0013] Figure 2 A schematic diagram illustrating the structure of the pressure roller of this utility model;

[0014] Figure 3 A schematic diagram illustrating the pallet structure of this utility model;

[0015] Figure 4 This is a schematic diagram illustrating the structure of the electric telescopic card block of this utility model.

[0016] The markings in the diagram are: 1-mounting frame, 21-electrode diaphragm conveyor, 22-first electric lifting slider, 23-pressure roller, 24-electric conveyor roller, 31-core board conveyor, 32-separator plate, 41-second electric lifting slider, 42-first electric rotating shaft, 43-support plate, 4301-suction hole, 44-second electric rotating shaft, 45-support rod, 4501-positioning slot, 51-third electric rotating shaft, 52-electric telescopic block, 61-electric push rod, 62-moving cutter, 63-static cutter, 7-discharge inclined plate. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0018] Example

[0019] This embodiment describes a secondary lithium-ion battery cell winding device, such as... Figures 1-4 As shown, the assembly includes a mounting frame 1, an electrode diaphragm conveyor 21, a first electric lifting slider 22, a pressure roller 23, an electric conveyor roller 24, a core board conveyor 31, a separator plate 32, a second electric lifting slider 41, a first electric rotating shaft 42, a support plate 43, a third electric rotating shaft 51, an electric telescopic clamp 52, a cutting mechanism, and a discharge inclined plate 7. The mounting frame 1 is sequentially equipped with the electrode diaphragm conveyor 21, the first electric lifting slider 22, and two electric conveyor rollers 24, with the first electric lifting slider 22 located between the electrode diaphragm conveyor 21 and the two electric conveyor rollers 24. A pressure roller 23 is rotatably connected to the first electric lifting slider 22. The core board conveyor 31 is mounted on the mounting frame 1, and is located above the electrode diaphragm conveyor 21. Several separator plates 32 are fixedly connected to the conveyor belt of the core board conveyor 31. The mounting frame 1 is equipped with... The system is equipped with a second electric lifting slider 41; a first electric rotating shaft 42 is rotatably connected to the second electric lifting slider 41; a support plate 43 is fixedly connected to the first electric rotating shaft 42, and the support plate 43 is aligned with the discharge port of the electrode diaphragm conveyor 21; a suction cavity structure is opened inside the support plate 43, and several suction holes 4301 structures connecting to the suction cavity structure are opened on the surface of the support plate 43; a vacuum suction machine is connected to the suction cavity structure of the support plate 43; two third electric rotating shafts 51 are installed on the mounting frame 1, which are symmetrical to each other; an electric telescopic locking block 52 is fixedly connected to each of the two third electric rotating shafts 51, and the support plate 43 is initially located between the two electric telescopic locking blocks 52; a cutting mechanism for cutting off excess electrodes and diaphragms is installed on the mounting frame 1; a discharge inclined plate 7 is fixedly connected to the mounting frame 1, and the discharge inclined plate 7 is aligned directly below the two electric telescopic locking blocks 52.

[0020] like Figure 2As shown, in this embodiment, the surface of each partition plate 32 of the core board conveyor 31 is set as an inclined structure; a second electric rotating shaft 44 is installed on the front and rear sides of the support plate 43; a support rod 45 that is close to the support plate 43 is fixed on each of the two second electric rotating shafts 44; a positioning slot 4501 is opened on each of the two support rods 45.

[0021] like Figure 1 As shown, in this embodiment, the cutting mechanism consists of an electric push rod 61, a moving cutter 62, and a stationary cutter 63; the electric push rod 61 is mounted on the mounting frame 1; the moving cutter 62 is fixedly connected to the telescopic end of the electric push rod 61; and the stationary cutter 63, aligned with the lower part of the moving cutter 62, is fixedly connected to the mounting frame 1.

[0022] The working principle of a secondary lithium-ion battery cell winding device in this embodiment is as follows.

[0023] First, the electrode and diaphragm conveyor 21 passes the electrode and diaphragm under the pressure roller 23 and conveys them between the two electric conveyor rollers 24. Together with the two electric conveyor rollers 24, it conveys the electrode and diaphragm onto the pallet 43. Then, an external vacuum suction machine uses the suction cavity structure of the pallet 43 to perform suction at the suction hole 4301, firmly adsorbing the electrode and diaphragm conveyed to the pallet 43. Next, the second electric lifting slider 41 pulls the pallet 43 and the adsorbed electrode and diaphragm upwards to the discharge port of the core board conveyor 31. Simultaneously, the electrode and diaphragm conveyor 21, together with the two electric conveyor rollers 24, releases the electrode and diaphragm outwards. At this point, there is a gap between the two electric conveyor rollers 24 and the pallet 43 that has moved upwards. The excess electrode sheets and diaphragms are then conveyed by the core board conveyor 31 to the support plate 43. At the same time, the two second electric rotating shafts 44 drive the two support rods 45 to rotate upwards towards the core board conveyor 31 to form an inclined structure. When a partition plate 32 on the conveyor belt of the core board conveyor 31 rotates to the right and aligns with the two inclined support rods 45, the core board conveyed to the right will slide down along the inclined structure of the partition plate 32 onto the positioning slots 4501 of the two support rods 45. Subsequently, the two second electric rotating shafts 44 drive the two support rods 45 to rotate downwards to reset. The core board follows the downward rotation of the two support rods 45 and is placed on the electrode sheets and diaphragms on the support plate 43, thus realizing the automatic positioning and placement of the core board with the electrode sheets and diaphragms.

[0024] Then, the second electric lifting slider 41 drives the tray 43 and the adsorbed electrode and diaphragm, as well as the placed core plate, to move downwards until the core plate, electrode, and diaphragm on the tray 43 are between the two electric telescopic blocks 52. At the same time, the two electric conveying rollers 24 drive the excess electrode and diaphragm that have been released outwards to move in the opposite direction, so that the excess electrode and diaphragm are conveyed towards the pressure roller 23, so as to avoid the excess electrode and diaphragm interfering with the downward movement of the tray 43. Meanwhile, the first electric lifting slider 22 drives the pressure roller 23 to move downwards, and the pressure roller 23 presses down and tightens the excess electrode and diaphragm, so that the excess electrode and diaphragm can remain in a taut state without being retracted by the electrode and diaphragm conveyor 21.

[0025] After this, two electrically telescopic clamping blocks 52 extend together toward the tray 43, clamping the core plate, electrode sheet, and diaphragm. After the external vacuum suction machine stops suctioning at the suction hole 4301 of the tray 43, the first electric rotating shaft 42 drives the tray 43 to rotate downwards away from the core plate. Then, two third electric rotating shafts 51 drive the two electrically telescopic clamping blocks 52 to rotate synchronously in the same direction, winding the core plate, electrode sheet, and diaphragm together. Finally, the electric push rod 61 drives the moving cutter 62 to move downwards. The downward-moving moving cutter 62, together with the stationary cutting cutter 63, cuts off the excess electrode sheet and diaphragm, realizing fully automatic alignment, winding, and cutting of the core plate, electrode sheet, and diaphragm without manual operation by the operator. Therefore, there is no risk of the operator's hand being pinched or the core plate being misplaced manually.

[0026] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A secondary lithium-ion battery cell production core winding device, comprising a mounting frame (1), a pole piece diaphragm conveyor (21) and an electric conveyor roller (24); the mounting frame (1) is sequentially provided with the pole piece diaphragm conveyor (21) and two electric conveyor rollers (24); characterized in that It also includes a core plate conveyor (31), a partition plate (32), a second electric lifting slide (41), a first electric rotating shaft (42), a supporting plate (43), a third electric rotating shaft (51), an electric telescopic clamping block (52) and a cutting mechanism; the mounting frame (1) is provided with the core plate conveyor (31), and the core plate conveyor (31) is located on the upper side of the pole piece diaphragm conveyor (21); a plurality of partition plates (32) are fixedly connected to the conveying belt of the core plate conveyor (31); the mounting frame (1) is provided with a second electric lifting slide (41); the first electric rotating shaft (42) is rotatably connected to the second electric lifting slide (41); the supporting plate (43) is fixedly connected to the first electric rotating shaft (42) and is aligned with the discharge port of the pole piece diaphragm conveyor (21); a suction cavity structure is formed in the supporting plate (43), and a plurality of suction holes (4301) are formed in the surface of the supporting plate (43) and are connected to the suction cavity structure; the mounting frame (1) is provided with two third electric rotating shafts (51); the electric telescopic clamping block (52) is fixedly connected to the third electric rotating shaft (51), and the supporting plate (43) is initially located between the two electric telescopic clamping blocks (52); the mounting frame (1) is provided with a cutting mechanism for cutting off excess pole pieces and diaphragms.

2. The equipment for winding a cell of a secondary lithium-ion battery according to claim 1, characterized in that, The mounting frame (1) is provided with a first electric lifting slide (22), and the first electric lifting slide (22) is located between the pole piece diaphragm conveyor (21) and the two electric conveyor rollers (24); the pressure roller (23) is rotatably connected to the first electric lifting slide (22).

3. The equipment for winding a cell of a secondary lithium-ion battery according to claim 1, characterized in that, The surface of each partition plate (32) of the core plate conveyor (31) is provided with a slope structure for guiding the core plate to slide in the direction of the supporting plate (43).

4. The device according to claim 1, wherein, The front side and the rear side of the supporting plate (43) are each provided with a second electric rotating shaft (44); the supporting rod (45) for receiving the core plate is fixedly connected to the second electric rotating shaft (44).

5. The device according to claim 4, wherein the device is characterized by: A positioning clamping groove (4501) for positioning the core plate is formed in each of the supporting rods (45).

6. The device according to claim 1, wherein, The cutting mechanism is composed of an electric push rod (61), a moving cutter (62) and a stationary cutter (63); the mounting frame (1) is provided with the electric push rod (61); the moving cutter (62) is fixedly connected to the telescopic end of the electric push rod (61); the stationary cutter (63) is fixedly connected to the mounting frame (1) and is aligned below the moving cutter (62).

7. The equipment for winding a cell of a secondary lithium-ion battery according to any one of claims 1-6, characterized in that, The mounting frame (1) is fixedly connected with a discharge inclined plate (7), and the discharge inclined plate (7) is aligned directly below the two electric telescopic clamping blocks (52).

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