Conveying device

Abstract

The application relates to a transfer device which comprises a base and a plurality of blocking assemblies, the plurality of blocking assemblies are arranged at intervals in the circumferential direction on the base and surround a containing space for containing an electric core; wherein the blocking assembly comprises a limiting block and a first roller, an inclined surface is formed on the side of the limiting block facing the containing space; a plurality of first rollers are rollably connected to the limiting block and at least partially protrude from the inclined surface, when the electric core is offset relative to the base, the plurality of first rollers guide the electric core to a preset position of the base through rolling, and the preset position is the central position of the base facing the containing space. The transfer device can greatly reduce the inclination of the electric core during the transfer process, thereby greatly reducing the damage of the electric core during the transfer process, and ensuring the safety and stability of the transfer; in addition, the first roller at least partially protrudes from the inclined surface, which can reduce the friction between the electric core and the limiting block, thereby improving the smoothness of the electric core sliding.

Description

Technical Field

[0001] This application relates to the field of battery cell manufacturing technology, and in particular to a transfer device. Background Technology

[0002] Transfer devices (e.g., transfer trays) are the "arteries" of the battery cell production line. Transfer trays are used to carry and secure battery cells, preventing them from moving, colliding, or falling during transfer, thus ensuring the safety of the battery cells during the transfer process.

[0003] In the battery cell manufacturing process, gripper mechanisms are typically used to transfer battery cells to transfer trays or from transfer trays to processing stations. During the process of transferring battery cells to transfer trays using gripper mechanisms, there is a possibility that the battery cells may not be placed in the preset position on the transfer tray, that is, the position of the battery cells placed on the transfer tray may be deviated. This can lead to damage to the battery cells in subsequent processes, such as due to movement, collision, or dropping. Utility Model Content

[0004] In view of this, embodiments of this application provide a transfer device to solve at least one problem existing in the prior art.

[0005] In a first aspect, embodiments of this application provide a transfer device for transferring battery cells, the transfer device comprising: Base; A blocking assembly, wherein a plurality of the blocking assemblies are circumferentially spaced on the base and enclose an accommodating space for accommodating the battery cell; The blocking component includes: The limiting block has an inclined surface on the side facing the accommodating space; First rollers, a plurality of first rollers are rotatably connected to the limiting block and at least partially protrude from the inclined surface. When the battery cell is offset relative to the base, the plurality of first rollers guide the battery cell to a preset position on the base by rolling. The preset position is the center position of the base facing the accommodating space.

[0006] In conjunction with the first aspect of this application, in an optional embodiment, the top surface of the limiting block forms a rounded corner at the connection point with the inclined surface.

[0007] In conjunction with the first aspect of this application, in an optional embodiment, the side of the limiting block facing the accommodating space is further provided with an anti-collision surface adjacent to the base, and the anti-collision surface is provided with a flexible buffer.

[0008] In conjunction with the first aspect of this application, in an optional embodiment, the height of the buffer member in a first direction is greater than 1 / 2 of the thickness of the battery cell, the first direction being the thickness direction of the base.

[0009] In conjunction with the first aspect of this application, in an alternative embodiment, the buffer is made of rubber.

[0010] In conjunction with the first aspect of this application, in an optional embodiment, the inclined surface and the plane where the base is located form a first angle, the angle range of the first angle being: 45°≤a≤60°.

[0011] In conjunction with the first aspect of this application, in an alternative embodiment, the transfer device further includes: The second roller, and a plurality of the second rollers, are rotatably connected to the base and located at the bottom of the accommodating space. When there is a positional offset between the battery cell and the base, the plurality of first rollers and second rollers guide the battery cell to the preset position by cooperating in rolling.

[0012] In conjunction with the first aspect of this application, in an optional embodiment, the base has a mounting groove on the side near the receiving space, and a plurality of second rollers are located in the mounting groove and at least partially protrude from the upper surface of the base.

[0013] In conjunction with a first aspect of this application, in an alternative embodiment, the second roller extends along a second direction, which is the width direction of the base.

[0014] In conjunction with the first aspect of this application, in an alternative embodiment, the transfer device further includes: The first fixed shaft has its two ends inserted into the limiting block. The first roller is sleeved on the first fixed shaft and can rotate around its axis. The two ends of the first fixed shaft are provided with first snap-fit ​​grooves, and the two first snap-fit ​​grooves correspond to the two ends of the first roller. A first retaining ring engages with the first retaining groove to define the relative position of the first roller and the first fixed shaft.

[0015] The transfer device provided in this application embodiment has an inclined surface on one side of the limiting block. Multiple first rollers are rotatably connected to the limiting block. When the position of the battery cell on the base shifts, the battery cell will fall onto the first rollers on the inclined surface of the limiting block. Under its own gravity and the rolling guidance of the first rollers, the battery cell moves to a preset position on the base, that is, the center position of the base. This can greatly reduce the tilting phenomenon of the battery cell during the transfer process, thereby greatly reducing the possibility of damage to the battery cell during the transfer process and ensuring the safety and stability of the transfer. In addition, the first rollers at least partially protrude from the inclined surface, which can reduce the friction between the battery cell and the limiting block, thereby improving the smoothness of the battery cell sliding.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram illustrating the state in which the battery cell is shifted when placed on the transfer device in an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of the transfer device provided in the embodiments of this application; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 A side view of the limiting block, buffer, and first roller in the transfer device provided in the embodiments of this application; Figure 5 An exploded view of the structure of the limiting block, the first roller, and the buffer in the transfer device provided in the embodiments of this application; Figure 6 This is an exploded view of the structure of the transfer device provided in the embodiments of this application.

[0018] Figure label: 100. Transfer device; 10. Base; 11. Mounting slot; 12. First mounting hole; 20. Blocking component; 21. Accommodating space; 22. Limiting block; 221. Inclined surface; 222. Top surface; 223. Rounded corner; 224. Anti-collision surface; 225. Second mounting hole; 23. First roller; 24. First fixed shaft; 241. First snap-fit ​​groove; 25. First snap ring; 30. Buffer components; 40. Second roller; 41. Second fixed shaft; 411. Second snap-fit ​​groove; 42. Second snap ring; 50. Battery cell. Detailed Implementation

[0019] To make the technical solution and beneficial effects of this utility model more apparent and understandable, a detailed description is provided below by listing specific embodiments. The accompanying drawings are not necessarily drawn to scale, and local features may be enlarged or reduced to more clearly show the details of the local features; unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0020] In the description of this utility model, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. In other words, they should not be construed as limitations on this utility model.

[0021] In this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" can explicitly indicate that at least one of those features is included. In the description of this utility model, "multiple" means at least two, such as two, three, etc.; "several" means at least one, such as one, two, three, etc., unless otherwise explicitly specified.

[0022] In this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this utility model, unless otherwise explicitly defined, the terms "above," "on top of," "above," "over," "below," "below," "below," or "below" for "first feature above second feature" can refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Furthermore, "above," "above," and "over" for "first feature above second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature below second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0024] This application provides a transfer device 100 for transferring battery cell 50, battery cell or other structural components. This application does not limit the specific implementation, and the following description uses battery cell 50 as an example.

[0025] Please refer to Figures 1 to 3 This application provides a transfer device 100, which includes a base 10 and blocking components 20. A plurality of blocking components 20 are circumferentially spaced on the base 10 and form an accommodating space 21 for accommodating a battery cell 50. The battery cell 50 can be a wound battery cell or a stacked battery cell.

[0026] The blocking assembly 20 includes a limiting block 22 and first rollers 23. The limiting block 22 has an inclined surface 221 on the side facing the receiving space 21. Multiple first rollers 23 are rotatably connected to the limiting block 22 and at least partially protrude from the inclined surface 221. When the battery cell 50 is offset relative to the base 10, the multiple first rollers 23 guide the battery cell 50 to a preset position on the base 10, which is the center position of the base 10 facing the receiving space 21.

[0027] When the battery cell 50 shifts position on the base 10, it will fall onto the first roller 23 on the inclined surface 221 of the limiting block 22. Under its own gravity and the rolling guidance of the first roller 23, the battery cell 50 can slide along the inclined surface to the preset position of the base 10, that is, the center position of the base 10. This can significantly reduce the tilting phenomenon of the battery cell 50 during transportation, reduce surface scratches and corner bumps of the battery cell 50, reduce the risk of damage to the battery cell 50 during transportation, and ensure the safety and stability of transportation. In addition, the first roller 23 protrudes at least partially from the inclined surface 221, and rolling instead of sliding can reduce the friction between the battery cell 50 and the limiting block 22, thereby improving the smoothness of the battery cell 50 sliding down.

[0028] The number of first rollers 23 can be set according to specific circumstances, and this application embodiment does not impose a specific limitation. For example, the number of first rollers 23 can be one, two, or three. In addition, the size of the first rollers 23 can be set according to specific circumstances. For example, the small circle diameter of the first roller 23 is 6mm, and the large circle diameter of the first roller is 16mm.

[0029] The limiting block 22 can be fixed to the base 10 by means of bolts, clips, welding, etc., and this embodiment does not specifically limit the method. The material of the side of the base 10 facing the accommodating space 21 can be silicon nitride, but it is not limited to this.

[0030] In one alternative embodiment, please refer to Figure 2 and Figure 4 The top surface 222 of the limiting block 22 forms a rounded corner 223 at the connection between the inclined surface 221 and the limiting block 22, which can prevent the battery cell 50 from being damaged on the edge of the limiting block 22 during the fall and ensure the safety of the battery cell 50 during transport. The rounded corner 223 and the first roller 23 form a continuous curved surface, which can increase the time for the battery cell 50 to slide to the preset position.

[0031] In an optional embodiment, the limiting block 22 also has an anti-collision surface 224 adjacent to the base 10 on the side facing the accommodating space 21, and a flexible buffer 30 is provided on the anti-collision surface 224.

[0032] The anti-collision surface 224 and the flexible buffer 30 are designed together to ensure that even if the battery cell 50 experiences a large impact when it slides onto the base, it will only strike the flexible buffer 30. The flexible buffer 30 increases the distance between the edge of the anti-collision surface and the sliding battery cell 50, preventing the battery cell 50 from being bumped at the corners and also preventing the limiting block 22 from being directly impacted, thus extending the service life of the limiting block 22. The flexible buffer 30 can be made of flexible materials such as rubber or foam, but is not limited to these two. The flexible buffer 30 can be fixed to the anti-collision surface 224 with double-sided tape, or it can be connected using other fixing methods.

[0033] Furthermore, the height of the buffer 30 in the first direction is greater than half the thickness of the battery cell 50, and the first direction is the thickness direction of the base 10 (that is, Figure 2 (The Z-axis direction in the coordinate system shown).

[0034] The height of the buffer 30 is greater than 1 / 2 the thickness of the battery cell 50, which can effectively buffer the R-angle of the battery cell 50 and avoid the situation where the buffer 30 is too small to effectively buffer the battery cell 50.

[0035] In an optional embodiment, a first included angle α is formed between the inclined surface 221 and the plane containing the base 10 (i.e., Figure 4 The angle 'a' shown in the figure has a range of greater than or equal to 45° and less than or equal to 60°. This range of angles allows the tilted battery cell 50 to slowly slide down to the preset position of the base 10, avoiding the impact of excessively slow sliding on efficiency or the safety risks of excessively fast sliding. At the same time, the angle of the first included angle 'a' being less than or equal to 60° can reduce the overall height of the transfer device and increase the applicability of the device.

[0036] In an optional embodiment, the upper surface of the base 10 facing the accommodating space 21 is flat, and the material used for the upper surface of the base 10 has a low coefficient of friction, so that the battery cell 50 can slide down to a preset position on the base 10.

[0037] In one alternative embodiment, please refer to Figure 5 and Figure 6 The transfer device 100 also includes a plurality of second rollers 40, which are rotatably connected to the base 10 and located at the bottom of the accommodating space 21. When there is a positional offset between the battery cell 50 and the base 10, the plurality of first rollers 23 and second rollers 40 guide the battery cell 50 to a preset position by cooperating in rolling.

[0038] The second roller 40 is made of plastic, which ensures that the battery cell 50 slides smoothly to the preset position on the base plate. For example, the small circle diameter of the second roller 40 is 12mm, the large circle diameter of the second roller 40 is 28mm, and the distance between the centers of adjacent second rollers 40 is 30mm. The size of the second roller 40 is not limited to these and can be set according to the overall size of the transfer device 100.

[0039] The second roller 40 and the first roller 23 roll together to apply external force to different parts of the battery cell 50 at the same time, which further improves the smoothness of the battery cell 50 sliding into the preset position of the base 10 when it is in an offset state.

[0040] In one alternative embodiment, please refer to Figure 2 and Figure 6 The base 10 has a mounting groove 11 on the side near the accommodating space 21. A plurality of second rollers 40 are located in the mounting groove 11 and at least partially protrude from the upper surface of the base 10. The number of second rollers 40 is not limited in this embodiment and can be set according to the size of the second rollers 40 and the base 10. For example, the number of second rollers 40 can be ten, eleven, twelve, thirteen, or fourteen.

[0041] In an alternative embodiment, the second roller 40 is along a second direction (i.e., Figure 2 The Y-axis direction in the coordinate system shown in the figure extends, thereby enabling more second rollers 40 to be provided in the mounting groove 11 of the base 10, further improving the smoothness of the battery cell 50 in the offset position sliding onto the base 10.

[0042] In one alternative embodiment, please refer to Figure 5 and Figure 6 The transfer device 100 also includes a first fixed shaft 24 and a first retaining ring 25. Both ends of the first fixed shaft 24 are inserted into the second mounting holes 225 provided in the limiting block 22. A first roller 23 is sleeved on the first fixed shaft 24 and can rotate around its axis. The first fixed shaft 24 has first engaging grooves 241 at both ends, with the two first engaging grooves 241 corresponding to the two ends of the first roller 23. The first retaining ring 25 engages with the first engaging grooves 241 to limit the relative position of the first roller 23 and the first fixed shaft 24.

[0043] In an optional embodiment, the transfer device 100 further includes a second fixed shaft 41 and a second retaining ring 42. Both ends of the second fixed shaft 41 are inserted into first mounting holes 12 provided in the base 10. The second roller 40 is sleeved on the second fixed shaft 41 and can rotate about its axis. The two ends of the second fixed shaft 41 are provided with second engaging grooves 411, corresponding to the two ends of the second roller 40. The second retaining ring 42 engages with the second engaging grooves 411 to define the relative position of the second roller 40 and the second fixed shaft 41.

[0044] By using the first snap ring 25 and the second snap ring 42 to snap onto both ends of the first fixed shaft 24 and the second fixed shaft 41 respectively, the directional consistency of the first roller 23 and the second roller 40 during the rolling process can be limited, and the rolling of the first roller 23 and the second roller 40 can be prevented from deviating.

[0045] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this application that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of this application and do not limit the scope of protection of this patent application.

Claims

1. A transfer device, characterized in that, For transferring battery cells (50), the transfer device (100) includes: Base (10); A plurality of blocking components (20) are circumferentially spaced on the base (10) and enclose a receiving space (21) for accommodating the battery cell (50). The blocking component (20) includes: The limiting block (22) has a slope (221) on the side facing the accommodating space (21). First rollers (23), a plurality of first rollers (23) are rotatably connected to the limiting block (22) and at least partially protrude from the inclined surface (221). When the battery cell (50) is offset relative to the base (10), the plurality of first rollers (23) guide the battery cell (50) to a preset position of the base (10) by rolling. The preset position is the center position of the base (10) facing the accommodating space (21).

2. The transfer device according to claim 1, characterized in that, The top surface (222) of the limiting block (22) forms a rounded corner (223) at the connection between it and the inclined surface (221).

3. The transfer device according to claim 1, characterized in that, The limiting block (22) also has an anti-collision surface (224) adjacent to the base (10) on the side facing the accommodating space (21), and a flexible buffer (30) is provided on the anti-collision surface (224).

4. The transfer device according to claim 3, characterized in that, The height of the buffer (30) in a first direction is greater than 1 / 2 of the thickness of the battery cell (50), and the first direction is the thickness direction of the base (10).

5. The transfer device according to claim 3, characterized in that, The buffer (30) is made of rubber.

6. The transfer device according to claim 1, characterized in that, The inclined plane (221) and the plane where the base (10) is located form a first included angle (a), and the angle range of the first included angle (a) is: 45°≤a≤60°.

7. The transfer device according to claim 1, characterized in that, The transfer device (100) further includes: The second roller (40) is rotatably connected to the base (10) and located at the bottom of the accommodating space (21). When the position of the battery cell (50) is offset relative to the base (10), the first roller (23) and the second roller (40) guide the battery cell (50) to the preset position by cooperating in rolling.

8. The transfer device according to claim 7, characterized in that, The base (10) has a mounting groove (11) on the side near the accommodating space (21), and a plurality of second rollers (40) are located in the mounting groove (11) and at least partially protrude from the upper surface of the base (10).

9. The transfer device according to claim 7, characterized in that, The second roller (40) extends along a second direction, which is the width direction of the base (10).

10. The transfer device according to any one of claims 1 to 9, characterized in that, The transfer device (100) further includes: The first fixed shaft (24) has its two ends inserted into the limiting block (22), and the first roller (23) is sleeved on the first fixed shaft (24) and can rotate around its axis. The first fixed shaft (24) has first snap-fit ​​grooves (241) at both ends, and the two first snap-fit ​​grooves (241) correspond to the two ends of the first roller (23). The first snap ring (25) engages with the first snap groove (241) to define the relative position of the first roller (23) and the first fixed shaft (24).

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