Eccentric vibration stacking table device

Abstract

The utility model provides an eccentric vibration stacking table device, and relates to the technical field of battery cell production. The eccentric vibration stacking table device comprises a stacking table, a stacking table baffle and an eccentric driving mechanism, the stacking table baffle is arranged on the stacking table, and a stacking area for unit piece discharging is defined by the stacking table baffle; and the eccentric driving mechanism is eccentrically connected with the stacking table to drive the stacking table to do circular motion, so that the alignment degree of the battery cells can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of battery cell production, and in particular to an eccentric vibration stacking device. Background Art

[0002] When producing battery cells, the high-speed hot composite stacking machine for lithium-ion batteries needs to complete multiple processes from cutting the coil into single sheets, going through hot composite, size calibration, short circuit detection, waste sheet removal to stacking into battery cells. Among them, composite sheet stacking is the key technology and plays a decisive role in the alignment of the battery cells.

[0003] The battery cells produced by the current stacking equipment, especially the battery cells with a sheet width greater than the width, will fall unevenly during the stacking process, causing the subsequent unit cells to become more and more skewed as they are stacked, resulting in poor cell alignment. Utility Model Content

[0004] The objects of the present application include, for example, providing an eccentric vibrating stacking device that can improve the alignment of battery cells.

[0005] This application can be implemented as follows:

[0006] The present application provides an eccentric vibration stacking table device, which includes a stacking table, a stacking table baffle and an eccentric driving mechanism. The stacking table baffle is arranged on the stacking table and encloses a stacking area for unit sheets to be unloaded; the eccentric driving mechanism is eccentrically connected to the stacking table to drive the stacking table to perform circular motion.

[0007] Optionally, the eccentric drive mechanism includes a motor and an eccentric wheel, the motor is eccentrically connected to the eccentric wheel, and the eccentric wheel is rotatably connected to the stacking platform.

[0008] Optionally, the distance between the axis of the output shaft of the motor and the axis of the eccentric wheel is 0.1-0.3 mm.

[0009] Optionally, the distance between the axis of the output shaft of the motor and the axis of the eccentric wheel is 0.2 mm.

[0010] Optionally, a bearing is provided on the stacking platform, and the bearing is coaxially connected to the eccentric wheel.

[0011] Optionally, the stacking platform baffle includes a front baffle and a rear baffle arranged opposite to each other along a first direction and a left baffle and a right baffle arranged opposite to each other along a second direction, and the front baffle, the rear baffle, the left baffle and the right baffle are all arranged on the stacking platform.

[0012] Optionally, the front baffle includes a first baffle and two second baffles symmetrically arranged along the second direction, and the first baffle is spaced apart from the second baffle.

[0013] Optionally, when the unit sheets are stacked in the stacking area to form a battery cell and the battery cell is located at the center of the stacking area, the distance between the front baffle, the rear baffle, the left baffle and the right baffle and the battery cell is 0.3-0.7 mm.

[0014] Optionally, when the unit sheets are stacked in the stacking area to form a battery cell and the battery cell is located at the center of the stacking area, the distance between the front baffle, the rear baffle, the left baffle, the right baffle and the battery cell is 0.5 mm.

[0015] Optionally, gaps are respectively formed between the two ends of the front baffle and the left baffle and the right baffle, and gaps are respectively formed between the two ends of the rear baffle and the left baffle and the right baffle.

[0016] The beneficial effects of the eccentric vibration stacking device of the present application include, for example: in order to improve the alignment of the battery cells, an eccentric vibration stacking device is designed, the eccentric vibration stacking device includes a stacking table, a stacking table baffle and an eccentric driving mechanism, the stacking table baffle is arranged on the stacking table, and encloses a stacking area for unloading unit sheets; the eccentric driving mechanism is eccentrically connected to the stacking table to drive the stacking table to perform circular motion; in the process of stacking the unit sheets, the unit sheets fall into the stacking area enclosed by the stacking table baffle, the eccentric driving mechanism is started, and the stacking table is driven to perform circular motion, the unit sheets in the stacking area collide with the stacking table baffle, so that the edges of multiple unit sheets stacked in sequence are aligned, and finally stacked to form battery cells with higher alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a cross-sectional view of the eccentric vibrating stacking device in the embodiment of the present application;

[0019] Figure 2 for Figure 1 A magnified view of part A;

[0020] Figure 3 A top view of the eccentric vibrating stacking device in an embodiment of the present application;

[0021] Figure 4 This is a schematic diagram used to illustrate the composite material strip unloading process in the embodiment of the present application.

[0022] Icons: 1-stack; 11-bearing; 2-stack baffle; 21-front baffle; 211-first baffle; 212-second baffle; 22-rear baffle; 23-left baffle; 24-right baffle; 3-eccentric drive mechanism; 31-motor; 32-eccentric wheel; 4-battery cell; 5-drive component; 6-composite material strip. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0025] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0026] In the description of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, it is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the utility model product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0028] It should be noted that, in the absence of conflict, the features in the embodiments of the present application may be combined with each other.

[0029] The inventor of the present application has found that the battery cells produced by the current lamination equipment, especially the battery cells with a sheet width greater than the width, will fall unevenly during the stacking process, causing the subsequent unit cells to become more and more skewed as they are stacked, resulting in poor alignment of the battery cells. The embodiments of the present application provide an eccentric vibration stacking device that can improve the alignment of the battery cells.

[0030] Please refer to Figure 1-Figure 4 The eccentric vibration stacking device provided in the embodiment of the present application includes a stacking platform 1, a stacking platform baffle 2 and an eccentric driving mechanism 3. The stacking platform baffle 2 is arranged on the stacking platform 1 and encloses a stacking area for unloading unit sheets; the eccentric driving mechanism 3 is eccentrically connected to the stacking platform 1 to drive the stacking platform 1 to perform circular motion.

[0031] It should be pointed out that the stacking platform baffle 2 is detachably connected or integrally connected to the stacking platform 1, and the stacking area formed by the stacking platform baffle 2 for unloading unit sheets is roughly rectangular and matches the shape of the unit sheets; when unloading the unit sheets, the composite material strip 6 is conveyed toward the stacking area through the driving component 5 (conveying roller), so that the composite material strip 6 is bent to form multiple unit sheets stacked in the stacking area; the eccentric driving mechanism 3 is arranged on a fixed object such as the ground, wall, or frame, and is eccentrically connected to the stacking platform 1, and can drive the stacking platform 1 to perform circular motion.

[0032] During the process of stacking the unit cells, the unit cells fall into the stacking area formed by the stacking platform baffle 2, and the eccentric driving mechanism 3 is started to drive the stacking platform 1 to make a circular motion. The unit cells in the stacking area collide with the stacking platform baffle 2, so that the edges of the multiple unit cells stacked in sequence are aligned, and finally the stacking forms a battery cell 4 with a higher degree of alignment, thereby improving the alignment of the battery cell 4; at the same time, the vibration impact force generated by the collision will cause the unit cell to move in the direction of gravity, so that the wrinkles and bends on the unit cell are flattened, thereby improving the flatness of the unit cell.

[0033] In this embodiment, the eccentric driving mechanism 3 includes a motor 31 and an eccentric wheel 32 . The motor 31 is eccentrically connected to the eccentric wheel 32 , and the eccentric wheel 32 is rotatably connected to the stacking platform 1 .

[0034] It should be noted that the output shaft of the motor 31 is inserted into the eccentric wheel 32 , and the axis of the output shaft of the motor 31 and the axis of the eccentric wheel 32 have a certain offset, so that the output shaft of the motor 31 is eccentrically connected to the eccentric wheel 32 .

[0035] In this embodiment, the distance H1 between the axis of the output shaft of the motor 31 and the axis of the eccentric wheel 32 is 0.1-0.3 mm.

[0036] Exemplarily, the distance H1 between the axis of the output shaft of the motor 31 and the axis of the eccentric wheel 32 is 0.1 mm, 0.2 mm or 0.3 mm. It is understandable that the distance H1 between the axis of the output shaft of the motor 31 and the axis of the eccentric wheel 32 can be selected within the above range according to actual working conditions. Preferably, the distance H1 between the axis of the output shaft of the motor 31 and the axis of the eccentric wheel 32 is 0.2 mm, and at this time, the stacking table 1 performs a circular motion with a radius of 0.2 mm around the output shaft of the motor 31 under the drive of the motor 31.

[0037] When the distance H1 between the axis of the output shaft of the motor 31 and the axis of the eccentric wheel 32 is in the range of 0.1-0.3mm, the motor 31 drives the eccentric wheel 32 to rotate, and the eccentric wheel 32 drives the stacking table 1 to make a circular motion. At this time, the impact force between the unit sheets in the stacking area and the stacking table baffle 2 is not easy to damage the unit sheets, and a better alignment effect can be achieved between the unit sheets.

[0038] In this embodiment, a bearing 11 is provided on the stacking platform 1 , and the bearing 11 is coaxially connected to the eccentric wheel 32 .

[0039] It should be pointed out that a mounting hole is vertically opened on the stacking platform 1, and the bearing 11 is arranged in the mounting hole. The axes of the mounting hole, the bearing 11, and the eccentric wheel 32 coincide with each other. The bearing 11 is coaxially connected with the eccentric wheel 32, so that the eccentric wheel 32 and the stacking platform 1 are rotatably connected. When the motor 31 is started, the eccentric wheel 32 drives the stacking platform 1 to perform circular motion around the output shaft of the motor 31.

[0040] In this embodiment, the stacking platform baffle 2 includes a front baffle 21 and a rear baffle 22 arranged opposite to each other along a first direction, and a left baffle 23 and a right baffle 24 arranged opposite to each other along a second direction. The front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 are all arranged on the stacking platform 1.

[0041] It should be pointed out that the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 are split structures, and the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 enclose a rectangular stacking area, and the unit pieces fall into the stacking area during the unloading process. When the motor 31 drives the eccentric wheel 32 to move, the stacking table 1 performs a circular motion around the output shaft of the motor 31, driving the four edges of the unit pieces in the stacking area to collide with the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 respectively, thereby improving the alignment between the unit pieces.

[0042] In other embodiments, the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 are an integrally formed structure.

[0043] In this embodiment, the front baffle 21 includes a first baffle 211 and two second baffles 212 symmetrically arranged along the second direction, and the first baffle 211 and the second baffle 212 are arranged at an interval.

[0044] It should be noted that both the first baffle 211 and the second baffle 212 can collide with the edge of the unit chip close to themselves, and the first baffle 211 and the second baffle 212 are spaced apart so that a space for an external robot to enter is formed between the first baffle 211 and the second baffle 212, so that the robot can take out the battery cell 4 formed by the stacked unit chips from the stacking area; the gap between the first baffle 211 and any second baffle 212 can be entered by the robot.

[0045] In this embodiment, when the unit sheets are stacked in the stacking area to form the battery cell 4 and the battery cell 4 is located at the center of the stacking area, the distance H2 between the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 and the battery cell 4 is 0.3-0.7 mm.

[0046] It should be noted that when the unit sheets are stacked in the stacking area to form the battery cell 4 and the battery cell 4 is located at the center of the stacking area, the distance H2 between the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 and the battery cell 4 is equal, all of which are 0.3-0.7 mm.

[0047] Exemplarily, the distance H2 between the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 and the battery cell 4 is 0.3mm, 0.5mm or 0.7mm. It can be understood that the distance H2 between the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 and the battery cell 4 can be determined within the above range according to the actual working conditions. When the distance H2 between the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 and the battery cell 4 is in the range of 0.3-0.7mm, the unit cell will not be damaged when any edge of the unit cell collides with the baffle, and the unit cell can be better aligned.

[0048] Preferably, when the unit sheets are stacked in the stacking area to form the battery cell 4 and are located at the center of the stacking area, the distance H2 between the front baffle 21 , the rear baffle 22 , the left baffle 23 , and the right baffle 24 and the battery cell 4 is 0.5 mm.

[0049] When setting the front baffle 21 and the rear baffle 22, the distance between the front baffle 21 and the rear baffle 22 can be set according to the width of the unit sheet, for example, the distance between the front baffle 21 and the rear baffle 22 is set to the width of the unit sheet plus 1 mm; when setting the left baffle 23 and the right baffle 24, the distance between the left baffle 23 and the right baffle 24 can be set according to the length of the unit sheet, for example, the distance between the left baffle 23 and the right baffle 24 is set to the length of the unit sheet plus 1 mm.

[0050] In this embodiment, gaps are respectively formed between the two ends of the front baffle 21 and the left baffle 23 and the right baffle 24 , and gaps are respectively formed between the two ends of the rear baffle 22 and the left baffle 23 and the right baffle 24 .

[0051] It should be pointed out that by setting gaps between the two ends of the front baffle 21 and the left baffle 23 and the right baffle 24, as well as setting gaps between the two ends of the rear baffle 22 and the left baffle 23 and the right baffle 24, during the collision between the unit piece and the baffle, the gap will play a role in avoiding the corners of the unit piece, and it is not easy to cause damage to the corners of the unit piece.

[0052] To summarize, the working principle of the eccentric vibration stacking device provided in the embodiment of the present application is as follows: the driving component 5 drives the composite material strip 6 to move toward the stacking area, so that the composite material strip 6 is bent to form multiple unit sheets and fall into the stacking area enclosed by the stacking platform baffle 2, and the motor 31 is started while the unit sheets fall, and the motor 31 drives the eccentric wheel 32 to rotate, and the eccentric wheel 32 drives the stacking platform 1 to make a circular motion around the output shaft of the motor 31, and the multiple unit sheets stacked in sequence in the stacking area collide with the front baffle 21, the rear baffle 22, the left baffle 23 and the right baffle 24 respectively, so that the edges of the multiple unit sheets are aligned, and finally stacked to form a battery cell 4 with a higher degree of alignment, thereby improving the alignment of the battery cell 4; at the same time, the vibration impact force generated by the collision will cause the unit sheet to move in the direction of gravity, so that the wrinkles and bends on the unit sheet are flattened, thereby improving the flatness of the unit sheet.

[0053] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. An eccentric vibration stacking device, characterized in that: It includes a stacking platform, a stacking platform baffle and an eccentric driving mechanism. The stacking platform baffle is arranged on the stacking platform and encloses a stacking area for unloading unit sheets. The eccentric driving mechanism is eccentrically connected to the stacking platform to drive the stacking platform to perform circular motion.

2. The eccentric vibration stacking device according to claim 1, characterized in that: The eccentric drive mechanism comprises a motor and an eccentric wheel, wherein the motor is eccentrically connected to the eccentric wheel, and the eccentric wheel is rotatably connected to the stacking platform.

3. The eccentric vibration stacking device according to claim 2, characterized in that: The distance between the axis of the output shaft of the motor and the axis of the eccentric wheel is 0.1-0.3 mm.

4. The eccentric vibration stacking device according to claim 3, characterized in that: The distance between the axis of the output shaft of the motor and the axis of the eccentric wheel is 0.2 mm.

5. The eccentric vibration stacking device according to claim 2, characterized in that: A bearing is arranged on the stacking platform, and the bearing is coaxially connected with the eccentric wheel.

6. The eccentric vibration stacking device according to claim 1, characterized in that: The stacking platform baffle includes a front baffle and a rear baffle arranged opposite to each other along a first direction, and a left baffle and a right baffle arranged opposite to each other along a second direction. The front baffle, the rear baffle, the left baffle and the right baffle are all arranged on the stacking platform.

7. The eccentric vibration stacking device according to claim 6, characterized in that: The front baffle includes a first baffle and two second baffles symmetrically arranged along the second direction, and the first baffle is spaced apart from the second baffle.

8. The eccentric vibration stacking device according to claim 6, characterized in that: When the unit sheets are stacked in the stacking area to form a battery cell and the battery cell is located at the center of the stacking area, the distance between the front baffle, the rear baffle, the left baffle and the right baffle and the battery cell is 0.3-0.7 mm.

9. The eccentric vibration stacking device according to claim 8, characterized in that: When the unit sheets are stacked in the stacking area to form a battery cell and the battery cell is located at the center of the stacking area, the distance between the front baffle, the rear baffle, the left baffle, the right baffle and the battery cell is 0.5 mm.

10. The eccentric vibration stacking device according to claim 6, characterized in that: There are gaps between the two ends of the front baffle and the left baffle and the right baffle, respectively. There are gaps between the two ends of the rear baffle and the left baffle and the right baffle, respectively.

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