Three-station battery cell automatic winding machine

Abstract

The utility model provides a three-station battery cell automatic winding machine which comprises a workbench, a stepping motor is fixed to the right side of the bottom of the workbench, a conveying disc is rotationally connected to the top of a transmission shaft at the output end of the stepping motor, a containing cylinder is fixed to the outer side of the upper surface of the conveying disc, and a servo motor is fixed to the top of the workbench through a support. The bottom of a transmission shaft at the output end of the servo motor is rotationally connected with a mounting disc, an extension column is fixed to the front end of the mounting disc through a bolt, a lower fixing cylinder is fixed to the bottom of the extension column, a lower supporting plate is embedded into the upper portion of the interior of the lower fixing cylinder, an upper fixing cylinder is embedded into the upper portion of the interior of the extension column, and an upper supporting plate is embedded into the lower portion of the interior of the upper fixing cylinder. A left electric push rod and a right electric push rod are fixed to the left and right sides of the rear end of the workbench through supports respectively. According to the utility model, after the battery cell is automatically wound, the wound battery cell can be quickly replaced, the working efficiency is higher, and the use is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of battery processing equipment technology, and in particular to a three-station automatic battery cell winding machine. Background Technology

[0002] With the rapid growth in demand for digital products, lithium-ion batteries have also developed rapidly, becoming one of the hottest areas of international electrochemical research. Soft-pack lithium-ion batteries have significant advantages in electrochemical performance, safety performance, and specific energy, and their shape and capacity can be customized at will, with low cost for changing models. Cylindrical batteries have advantages such as high production efficiency and high yield, but the metal casing is relatively heavy and inflexible in changing models. Cylindrical soft-pack lithium-ion batteries combine the advantages of both, thus improving specific energy, safety, and cost-effectiveness in changing models. The production process of lithium batteries requires many steps. In the step of winding the aluminum-plastic film around the battery cell, workers need to press the aluminum-plastic film onto the outer wall of the battery cell, and then the machine drives the aluminum-plastic film to rotate and wrap it around the outside of the battery cell. In this process, there is a risk of danger due to improper operation by the operator. In addition, human error can lead to large differences in the size of the wound cells, which is not only detrimental to production but also affects the quality of the product. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology, and to propose a three-station automatic battery cell winding machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A three-station automatic battery cell winding machine includes a worktable. A stepper motor is fixed to the bottom right side of the worktable. A conveyor plate is rotatably connected to the top of the drive shaft at the output end of the stepper motor. A placement cylinder is fixed to the outer side of the upper surface of the conveyor plate. A servo motor is fixed to the top of the worktable via a bracket. A mounting plate is rotatably connected to the bottom of the drive shaft at the output end of the servo motor. An extension column is fixed to the front end of the mounting plate via bolts. A lower fixing cylinder is fixed to the bottom of the extension column. A lower support plate is embedded in the upper part of the lower fixing cylinder. An upper fixing cylinder is nested in the upper part of the extension column. An upper support plate is embedded in the lower part of the upper fixing cylinder. A left electric push rod and a right electric push rod are respectively fixed to the left and right sides of the rear end of the worktable via brackets. A limit plate and a blade are respectively fixed to the front end of the push rod at the output end of the left and right electric push rods.

[0006] Preferably, the upper surface of the conveyor tray has three placement cylinders arranged in a circular shape at equal intervals, and the middle of the leftmost placement cylinder on the upper surface of the conveyor tray and the middle of the mounting tray are on the same vertical horizontal plane.

[0007] Preferably, the limiting plate and the blade are located on the left and right sides of the front end of the leftmost placement cylinder on the upper surface of the conveyor tray, respectively.

[0008] Preferably, the inner wall of the upper fixed cylinder is connected to the upper outer wall of the extension column by a thread, and the lower fixed cylinder and the upper fixed cylinder are arranged symmetrically.

[0009] Preferably, the lower fixed cylinder and the upper fixed cylinder rotate horizontally inside the lower support plate and the upper support plate, respectively.

[0010] Preferably, the upper surface of the lower support plate and the upper surface of the placement cylinder are both on the same horizontal plane, and the interior of the placement cylinder is vertically fixed with anti-slip strips in a circular shape.

[0011] During the winding of the battery cell with aluminum-plastic film, the left electric push rod pushes the limiting plate forward, causing the limiting plate to push one end of the aluminum-plastic film wrapped around the extension column to be tightly against the battery cell. Then, the servo motor drives the extension column to rotate through the mounting plate, so that the aluminum-plastic film is wrapped around the outside of the battery cell. When the aluminum-plastic film is about to contact the limiting plate tightly against the battery cell, the left electric push rod pulls the limiting plate backward in time, and then pushes the limiting plate to be tightly against the aluminum-plastic film and the battery cell. After the aluminum-plastic film is wound, the right electric push rod pushes the blade forward, so that the blade pushes the aluminum-plastic film to quickly cut it. The battery cell winding effect is good. After the battery cell is wound, the stepper motor drives the conveyor plate to rotate 120° clockwise, so that the wound battery cell in the conveyor plate moves to the right side of the device. The unwound battery cell will move to the bottom center of the mounting plate for the next winding operation, realizing the quick replacement of the wound battery cell, with high work efficiency and more convenient use. Attached Figure Description

[0012] Figure 1 This is a front view of the overall structure of this utility model;

[0013] Figure 2 This is a schematic cross-sectional view of the overall structure on the right side of this utility model;

[0014] Figure 3 This is a schematic cross-sectional view of the right side of a partial structure of the extension column in this utility model;

[0015] Figure 4 This is an exploded view of a portion of the extended column structure in this utility model.

[0016] Legend:

[0017] Workbench 1, Stepper motor 2, Conveyor tray 3, Placement cylinder 301, Servo motor 4, Mounting plate 401, Extension column 402, Lower fixed cylinder 403, Lower support plate 404, Upper fixed cylinder 405, Upper support plate 406, Left electric push rod 5, Limiting plate 501, Right electric push rod 6, Blade 601. Detailed Implementation

[0018] Example 1, referring to Figure 1-4 A three-station automatic battery cell winding machine includes a worktable 1. A stepper motor 2 is fixed to the bottom right side of the worktable 1. A conveyor plate 3 is rotatably connected to the top of the drive shaft at the output end of the stepper motor 2. A placement cylinder 301 is fixed to the outer side of the upper surface of the conveyor plate 3. A servo motor 4 is fixed to the top of the worktable 1 by a bracket. A mounting plate 401 is rotatably connected to the bottom of the drive shaft at the output end of the servo motor 4. An extension column 402 is fixed to the front end of the mounting plate 401 by bolts. A lower fixing cylinder 403 is fixed to the bottom of the extension column 402. A lower support plate 404 is embedded in the upper part of the lower fixing cylinder 403. An upper fixing cylinder 405 is nested in the upper part of the extension column 402. An upper support plate 406 is embedded in the lower part of the upper fixing cylinder 405. A left electric push rod 5 and a right electric push rod 6 are fixed to the left and right sides of the rear end of the worktable 1 by brackets. A limit plate 501 and a blade 601 are fixed to the front end of the push rod at the output end of the left electric push rod 5 and the right electric push rod 6, respectively.

[0019] The upper surface of the conveyor plate 3 is provided with three placement cylinders 301 arranged in a circular shape at equal intervals. The middle part of the leftmost placement cylinder 301 on the upper surface of the conveyor plate 3 and the middle part of the mounting plate 401 are on the same vertical horizontal plane.

[0020] After the battery cell is wound, the stepper motor 2 drives the conveyor plate 3 to rotate 120° clockwise, so that the wound battery cell in the conveyor plate 3 moves to the right side of the device, while the unwound battery cell moves to the bottom center of the mounting plate 401 for the next winding operation, so as to realize the quick replacement of the wound battery cell, which has high work efficiency and is more convenient to use.

[0021] The limiting plate 501 and the blade 601 are located on the left and right sides of the front end of the leftmost placement cylinder 301 on the upper surface of the conveyor plate 3, respectively.

[0022] The upper surface of the lower support plate 404 and the upper surface of the placement cylinder 301 are both on the same horizontal plane, and the interior of the placement cylinder 301 is vertically fixed with anti-slip strips in a circular shape.

[0023] During the process of winding the battery cell with aluminum-plastic film, the left electric push rod 5 pushes the limiting plate 501 forward, so that the limiting plate 501 pushes one end of the aluminum-plastic film wrapped on the outside of the extension column 402 to be close to the battery cell. Then, the servo motor 4 drives the extension column 402 to rotate through the mounting plate 401, so that the aluminum-plastic film is wrapped around the outside of the battery cell. When the aluminum-plastic film is about to contact the limiting plate 501 that is close to the battery cell, the left electric push rod 5 pulls the limiting plate 501 to move backward in time, and then pushes the limiting plate 501 to be close to the aluminum-plastic film and the battery cell to limit the aluminum-plastic film.

[0024] After the aluminum-plastic film is wound, the right electric push rod 6 pushes the blade 601 forward, so that the blade 601 pushes the aluminum-plastic film to quickly cut the aluminum-plastic film, resulting in a better battery cell winding effect.

[0025] Example 2 differs from Example 1 in that, in this example, the inner wall of the upper fixed cylinder 405 is connected to the upper outer wall of the extension column 402 by a thread, and the lower fixed cylinder 403 is symmetrically arranged with respect to the upper fixed cylinder 405.

[0026] When the aluminum-plastic film roll is limited between the lower fixed cylinder 403 and the upper fixed cylinder 405, the aluminum-plastic film roll will simultaneously drive the lower fixed cylinder 403 and the upper fixed cylinder 405 to rotate, which further improves the smoothness of the aluminum-plastic film roll's release and release.

[0027] The lower fixed cylinder 403 and the upper fixed cylinder 405 rotate horizontally inside the lower support plate 404 and the upper support plate 406, respectively.

[0028] After the aluminum-plastic film roll is nested in the middle of the extension column 402, the lower support plate 404 on the upper surface of the lower fixing cylinder 403 will be in close contact with the bottom of the aluminum-plastic film roll. At this time, the upper fixing cylinder 405 is rotated and moved from top to bottom on the outside of the extension column 402, so that the bottom of the upper support plate 406 below the upper fixing cylinder 405 is in close contact with the top of the aluminum-plastic film roll, thereby limiting the aluminum-plastic film roll and preventing it from moving up and down along the extension column 402 when the aluminum-plastic film is loosened by rotation, which further improves the accuracy of the aluminum-plastic film winding position.

[0029] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A three-station automatic battery cell winding machine, comprising a worktable (1), characterized in that, A stepper motor (2) is fixed to the bottom right side of the workbench (1). A conveyor plate (3) is rotatably connected to the top of the drive shaft at the output end of the stepper motor (2). A placement cylinder (301) is fixed to the outer side of the upper surface of the conveyor plate (3). A servo motor (4) is fixed to the top of the workbench (1) by a bracket. A mounting plate (401) is rotatably connected to the bottom of the drive shaft at the output end of the servo motor (4). An extension column (402) is fixed to the front end of the mounting plate (401) by bolts. A lower fixing is fixed to the bottom of the extension column (402). The lower fixed cylinder (403) has a lower support plate (404) embedded in its upper part, the upper fixed cylinder (405) is nested in the upper part of the extension column (402), and the upper support plate (406) is embedded in the lower part of the upper fixed cylinder (405). The left and right sides of the rear end of the worktable (1) are respectively fixed with a left electric push rod (5) and a right electric push rod (6) by a bracket. The front end of the push rod at the output end of the left electric push rod (5) and the right electric push rod (6) are respectively fixed with a limit plate (501) and a blade (601).

2. The three-station automatic battery cell winding machine according to claim 1, characterized in that, The upper surface of the conveyor plate (3) is provided with three placement cylinders (301) arranged in a circular shape at equal intervals. The middle part of the leftmost placement cylinder (301) on the upper surface of the conveyor plate (3) and the middle part of the mounting plate (401) are both on the same vertical horizontal plane.

3. The three-station automatic battery cell winding machine according to claim 1, characterized in that, The limiting plate (501) and the blade (601) are located on the left and right sides of the front end of the leftmost placement cylinder (301) on the upper surface of the conveyor plate (3), respectively.

4. The three-station automatic battery cell winding machine according to claim 2, characterized in that, The inner wall of the upper fixed cylinder (405) is connected to the upper outer wall of the extension column (402) by a thread, and the lower fixed cylinder (403) is symmetrically arranged with respect to the upper fixed cylinder (405).

5. The three-station automatic battery cell winding machine according to claim 1, characterized in that, The lower fixed cylinder (403) and the upper fixed cylinder (405) rotate horizontally inside the lower support plate (404) and the upper support plate (406), respectively.

6. The three-station automatic battery cell winding machine according to claim 1, characterized in that, The upper surface of the lower support plate (404) and the upper surface of the placement cylinder (301) are both on the same horizontal plane, and the interior of the placement cylinder (301) is vertically fixed with anti-slip strips in a circular shape.

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