Tab transfer blocking mechanism and tab welding equipment
By configuring a baffle plate to block airflow during the electrode conveying process, the problem of electrode folding is solved, and stable electrode conveying and efficient welding are achieved.
Patent Information
- Application Number
- CN202423025695.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-09
AI Technical Summary
During the battery cell production process, when the tabs are transported to the welding station, the lack of a shield at the front end causes the airflow to blow directly onto the tabs, resulting in the tabs folding over and affecting the welding quality.
A wind deflector is positioned at the front of the transfer body in the direction of travel. The wind deflector is higher than the top surface of the support unit, forming a wind-blocking area. The wind deflector moves forward synchronously with the support unit to block the airflow and reduce airflow disturbance to the tabs.
The design of the baffle reduces the disturbance of airflow to the electrode tabs, improves the stability of electrode tab delivery, and ensures the quality of subsequent welding.
Smart Images
Figure CN223492307U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of electrode processing equipment, specifically to an electrode transfer blocking mechanism and electrode welding equipment. Background Technology
[0002] With the widespread use of lithium batteries in the market, in order to improve the weight energy density and volumetric energy density of batteries, 4.5um copper foil is gradually replacing 6.0um foil, further reducing the weight of the battery itself and reducing material costs. However, in the battery cell production process, the industry often adds an air blowing operation to the tabs before ultrasonic welding to smooth them out. However, during the transportation of the tabs, since there is no obstruction at the front end of the tabs, the tabs may be folded due to airflow during transportation, affecting the ultrasonic welding of the cell tabs. Utility Model Content
[0003] The present invention aims to solve the above-mentioned technical problem, namely, when the battery cell tab is transported to the welding station, the front end of the tab is not blocked, causing the airflow to blow directly onto the tab, resulting in the tab folding before it reaches the ultrasonic welding station, which affects the tab welding.
[0004] In a first aspect, the present invention provides a tab transfer blocking mechanism, comprising:
[0005] A transfer body for conveying electrode sheets and having a support portion for placing the electrode sheets;
[0006] A wind deflector is disposed on the transfer body and positioned at the front of the bearing part in the forward direction, with the top of the wind deflector being higher than the top surface of the bearing part.
[0007] By arranging a baffle plate at the front of the transfer body in the forward direction of the carrier, and placing the carrier within the windproof area formed by the baffle plate, the baffle plate can block the airflow in front of the carrier when the transfer body moves the carrier, the baffle plate and the electrode tab forward synchronously. This reduces the airflow entering between the carrier and the baffle plate and disturbing the electrode tab, thus preventing the electrode tab from folding over and ensuring the stability of electrode tab delivery in this application.
[0008] In the preferred embodiment of the above-mentioned electrode transfer blocking mechanism, the baffle plate completely blocks at least the side of the support part along the forward direction of the support part. This arrangement further reduces the airflow blowing towards the support part in the forward direction, reducing the risk of the electrode being overturned due to airflow disturbance, and facilitating subsequent welding of the electrode.
[0009] In the preferred embodiment of the above-mentioned electrode transfer blocking mechanism, the distance between the baffle plate and the support part is 10-20mm. By controlling the distance between the baffle plate and the support part to be shorter, the airflow entering between the support part and the baffle plate from both sides of the support part can be reduced, thereby further reducing the disturbance of the airflow to the electrode tabs placed on the support part and ensuring the stability of electrode sheet conveying in this application.
[0010] In the preferred embodiment of the above-mentioned electrode transfer blocking mechanism, the wind deflector has a wind deflector part and a flow guide part. The flow guide part is located at the lower part of the wind deflector part and is directly opposite the bearing part. The flow guide part is used to guide the airflow blowing towards the wind deflector part downward.
[0011] When the carrier and the baffle are driven forward by the conveying unit, the airflow blowing towards the baffle guide is guided downward by the guide, so that the airflow can flow smoothly, reduce the wind resistance of the baffle, reduce the turbulence around the baffle, reduce the problem of the electrode tab being folded due to airflow disturbance, ensure the stability of the transfer body for the electrode tab, and facilitate the subsequent welding of the electrode tab.
[0012] In the preferred embodiment of the above-mentioned electrode transfer blocking mechanism, the guide portion is a continuous and smooth arc-shaped curved surface structure.
[0013] In the preferred embodiment of the above-mentioned electrode transfer blocking mechanism, the guide portion is a bending structure that bends at least once toward the bearing portion.
[0014] In the preferred embodiment of the above-mentioned electrode transfer blocking mechanism, the thickness of the wind baffle is 1-10mm.
[0015] In the preferred embodiment of the aforementioned electrode transfer blocking mechanism, the baffle plate is provided with reinforcing ribs. This arrangement further maintains the shape of the baffle plate during forward movement, ensuring the stability of the baffle plate in blocking airflow, and further enhancing the stability of electrode conveying in this application.
[0016] In the preferred embodiment of the above-mentioned electrode transfer blocking mechanism, the position of the baffle plate on the transfer body is adjustable. Installing the baffle plate on the transfer body with bolts offers advantages such as simple structure and convenient adjustment.
[0017] In a second aspect, the present invention also provides an electrode tab welding device, the electrode tab welding device including the aforementioned electrode tab transfer blocking mechanism; wherein, the electrode tab transfer blocking mechanism is used to transport stacked electrode sheets, and the electrode tab welding device is used to weld the electrode tabs of the electrode sheets transported by the electrode tab transfer blocking mechanism.
[0018] The beneficial effects of this utility model are:
[0019] (1) By arranging a baffle plate at the front of the transfer body in the forward direction of the bearing section, and the bearing section is located in the windproof area formed by the baffle plate, the baffle plate can block the airflow in front of the bearing section when the transfer body drives the bearing section, the baffle plate and the electrode ear to move forward synchronously, thereby reducing the airflow entering between the bearing section and the baffle plate and disturbing the electrode ear, causing the electrode ear to fold, thus ensuring the stability of electrode ear transportation in this application;
[0020] (2) By configuring the baffle plate as consisting of a baffle part and a guide part, when the carrying part and the baffle plate are driven forward by the conveying part, the airflow blowing towards the guide part of the baffle plate will be guided by the guide part to the lower position, so that the airflow can flow smoothly, reduce the wind resistance of the baffle plate, reduce the turbulence around the baffle plate, reduce the problem of airflow disturbing the electrode tab and causing the electrode tab to fold, ensure the stability of the transfer body for the electrode tab, and facilitate the subsequent welding of the electrode tab. Attached Figure Description
[0021] Figure 1 This is the front view of the present invention;
[0022] Figure 2 Front view of the wind deflector without a deflector Figure 1 ;
[0023] Figure 3 Front view of the wind deflector without a deflector Figure 2 ;
[0024] Figure 4 Front view of the windshield without a deflector;
[0025] In the figure: transfer body 1, bearing part 11, pole piece 2, pole lug 21, wind baffle 3, wind baffle part 31, fin plate 311, flow guide part 32, waist-shaped hole 321, reinforcing rib 4. Detailed Implementation
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component is required to be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0027] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0028] As mentioned in the background art, when the battery cell tab 21 is transported to the welding station, the lack of a shield at the front end of the tab 21 allows airflow to blow directly onto the tab 21, causing the tab 21 to fold before reaching the ultrasonic welding station, thus affecting the welding of the tab 21. This utility model provides a tab transfer blocking mechanism. By placing a baffle plate 3 at the front of the transfer body 1 in the forward direction of the support part 11, and placing the support part 11 within the windproof area formed by the baffle plate 3, the baffle plate 3 can block the airflow in front of the support part 11 when the transfer body 1 moves synchronously with the support part 11, the baffle plate 3, and the tab 21. This reduces the amount of airflow entering between the support part 11 and the baffle plate 3, which could disturb the tab 21 and cause it to fold, thus ensuring the stability of the tab 21 transport in this application.
[0029] Figure 1 This is the front view of the present invention; Figure 2 The front view of the wind deflector 3 without the air guide 32 Figure 1 ; Figure 3 The front view of the wind deflector 3 without the air guide 32 Figure 2 ; Figure 4 Front view of the wind deflector 3 without the air guide 32.
[0030] See Figures 1 to 4 The electrode transfer blocking mechanism of this utility model includes: a transfer body 1, which is used to transport the electrode 2 and has a support part 11 for placing the electrode 2; and a wind baffle 3, which is disposed on the transfer body 1 and placed at the front of the support part 11 in the forward direction, with the top of the wind baffle 3 being higher than the top surface of the support part 11.
[0031] See Figures 1 to 4 The transfer body 1 includes a conveying section and a supporting section 11. The supporting section 11 is used to prevent the electrode 2 from being transported, and the conveying section is used to transport the supporting section 11 and the electrode 2. In one specific embodiment, the conveying section can be a linear module, which is a mature technology and its specific structure will not be described. The supporting section 11 is disposed on the conveying section and driven by the conveying section for transport. The supporting section 11 may be provided with a clamping structure for pressing the electrode 2, or a groove for placing the electrode 2 may be formed on the top surface of the supporting section 11, so as to further... During the conveying process, the electrode 2 is lowered and its position shifts due to the influence of airflow, resulting in the tip 21 folding over. It should be noted that the clamping structure can be a drive cylinder and a pressure plate controlled by the drive cylinder to lift and lower the electrode 2 on the support part 11. When pressing the electrode 2 onto the support part 11, the electrode 2 is first placed on the support part 11 and below the pressure plate, with the tip 21 of the electrode 2 facing the baffle plate 3. Then, the pressure plate is lowered by the drive cylinder to press the electrode 2. This method has the characteristics of simple structure and convenient operation.
[0032] See Figure 1 , Figure 2 The baffle plate 3 is disposed on the support part 11 and is driven to move synchronously with the support part 11 by the conveying part. In the forward direction of the support part 11, the baffle plate 3 is disposed at the front position of the support part 11. The top of the baffle plate 3 is at least higher than the top surface of the support part 11, and the bottom of the baffle plate 3 is at least lower than the bottom surface of the support part 11. So that when the support part 11 and the baffle plate 3 move forward synchronously, the baffle plate 3 can be located in front of the support part 11 and block at least part of the space above the support part 11, reducing the airflow blowing on the electrode plate 2 placed above the support part 11, thereby reducing the risk of the electrode tab 21 flipping over.
[0033] See Figure 1 , Figure 2When the electrode 2 is transported using the transfer body 1, the electrode 2 is first placed on the support part 11, and the electrode tab 21 of the electrode 2 is aligned with the baffle plate 3. Then, the electrode 2 can be pressed by the clamping structure configured on the support part 11. The support part 11 and the electrode 2 are then transported by the transport part. During the synchronous advance of the support part 11 and the baffle plate 3, the baffle plate 3 can block the airflow in the forward direction of the support part 11, reduce the airflow blowing towards the support part 11, and thus reduce the airflow towards the electrode 2 placed on the support part 11. This reduces the possibility of the electrode tab 21 being flipped due to airflow disturbance, which facilitates the improvement of the efficiency of subsequent electrode tab 21 welding.
[0034] In one or more embodiments, along the forward direction of the support portion 11, the wind deflector 3 completely covers at least the side of the support portion 11.
[0035] See Figure 1 , Figure 4 The portion of the baffle plate 3 used to shield the support part 11 is roughly rectangular in shape. One end of the support part 11 in the forward direction is located within the windproof area formed by the baffle plate 3. This arrangement allows the baffle plate 3 to further reduce the airflow in the forward direction of the support part 11, reducing the risk of the tab 21 being overturned due to airflow disturbance, and facilitating subsequent welding of the tab 21.
[0036] In one or more embodiments, the distance between the wind deflector 3 and the support portion 11 is 10-20 mm.
[0037] See Figure 1 The distance between the baffle plate 3 and one end of the support portion 11 in the forward direction is 10-20mm. When the electrode 2 is placed on the support portion 11, the distance between the electrode tab 21 of the electrode 2 and the baffle plate 3 can also be 10-20mm, or other possible distances, adjusted according to actual production needs. In one specific embodiment, the distance between the baffle plate 3 and the support portion 11 at one end in the forward direction can be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, or 20mm. In other possible embodiments, shorter distances are also possible, including 1mm, 2mm, 3mm, 4mm, or 5mm.
[0038] See Figure 1 By configuring the distance between the wind deflector 3 and the support part 11 to be shorter, it is possible to effectively reduce the airflow on both sides of the support part 11 and the wind deflector 3 from entering the front of the support part 11 when the support part 11 moves forward, thereby further reducing the airflow blowing towards the tab 21 and reducing the risk of the tab 21 flipping over.
[0039] In one or more embodiments, the wind deflector 3 has a wind deflector portion 31 and a flow guide portion 32. The flow guide portion 32 is located at the lower part of the wind deflector portion 31, and the wind deflector portion 31 is directly opposite the support portion 11. The flow guide portion 32 is used to guide the airflow blowing towards the wind deflector 3 in the downward direction.
[0040] See Figure 1 The baffle plate 3 has a baffle portion 31 and a guide portion 32. The baffle portion 31 is directly opposite the support portion 11 of the transfer body 1 and is used to block the airflow for the electrode 2 placed above the support portion 11 when the support portion 11 moves forward, reducing the problem of airflow blowing towards the electrode tab 21 and causing the electrode tab 21 to fold. The guide portion 32 is disposed below the baffle portion 31 and is located on the bottom surface of the support portion 11. When the support portion 11 and the baffle plate 3 are driven forward by the conveying unit, the airflow blowing towards the guide portion 32 of the baffle plate 3 will be guided by the guide portion 32 to a lower position, so that the airflow can flow smoothly, reducing the wind resistance of the baffle plate 3 and reducing the turbulence around the baffle plate 3, further reducing the problem of airflow disturbing the electrode tab 21 and causing the electrode tab 21 to fold, ensuring the stability of the transfer body 1 in conveying the electrode tab 21, and facilitating the subsequent welding of the electrode tab 21.
[0041] In one possible implementation, the windbreak portion 31 has fins 311 formed at both ends in the width direction toward the support portion 11, and the fins 311 are perpendicular to the windbreak portion 31 or inclined toward the direction away from the support portion 11. When the airflow blows towards the windbreak portion 31 of the windbreak plate 3, the airflow moves towards the two sides, top side and bottom side of the windbreak portion 31. After passing the top side of the windbreak portion 31, the airflow blows upward towards the support portion 11 and does not blow towards the electrode tabs 21 of the electrode plate 2 on the support portion 11. When the airflow passes the bottom side of the windbreak portion 31, the airflow is guided downward by the guide portion 32 of the windbreak plate 3. When the airflow passes the two sides of the windbreak portion 31, under the action of the fin plate 311, the airflow moves in a trumpet-shaped trajectory to move away from the two sides of the support portion 11, so as to further reduce the airflow entering the windbreak plate 3 and the support portion 11 support, thereby disturbing the electrode tabs 21 of the electrode plate 2 and causing the electrode tabs 21 to fold, thus improving the stability of the electrode plate 2 conveying in this application.
[0042] In one possible implementation, the fins 311 formed on both sides of the windbreak 31 extend to the sides of the support portion 11. With this arrangement, more airflow guided by the fins 311 can flow past the sides of the support portion 11 without entering between the support portion 11 and the windbreak 3.
[0043] In the first embodiment of the flow guide 32, the flow guide 32 is a continuous and smooth arc-shaped curved surface structure.
[0044] The guide section 32, not shown in the attached figure, has a continuous and smooth arc-shaped curved surface structure. The cross-section of the guide section 32 is approximately arc-shaped, and the bottom end of the guide section 32 is close to the bearing section 11. With this arrangement, the airflow blowing towards the guide section 32 when the baffle plate 3 moves forward can be guided to the lower position. At the same time, combined with the smooth arc-shaped curved surface structure of the guide section 32, the airflow resistance can be further reduced, the airflow blowing towards the electrode 2 can be reduced, and the stability of the transfer body 1 in transporting the electrode 2 can be ensured.
[0045] In the second embodiment of the guide section 32, the guide section 32 is a bending structure that bends at least once toward the support section 11.
[0046] See Figure 1 The guide section 32 has a bent structure, which is bent towards the bearing section 11. With this arrangement, the airflow blowing into the guide section 32 can be guided to the lower position. The second embodiment of the guide section 32 differs from the first embodiment of the guide section 32 only in the shape of the guide section 32. In the second embodiment of the guide section 32, by configuring the guide section 32 as a bent structure, it has the effect of facilitating processing and production and ensuring stable airflow.
[0047] In one or more embodiments, the thickness of the wind deflector 3 is 1-10 mm.
[0048] See Figure 2 , Figure 3 The thickness of the wind deflector 3 is selectable. Specifically, the thickness of the wind deflector 3 can be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm. It should be noted that the thickness of the wind deflector 3 must ensure that the position of the wind deflector 3 remains unchanged and does not deflect when encountering wind resistance.
[0049] In one possible implementation, the wind deflector 3 can be made of aluminum alloy, steel, or iron.
[0050] In one possible implementation, the surface of the baffle plate 3 is coated with a polytetrafluoroethylene (PTFE) coating. It should be noted that the PTFE coating has a certain anti-corrosion function. This design can extend the service life of the baffle plate 3 and reduce contamination of the electrode 2 by foreign matter on the baffle plate 3, thus ensuring the stability of the electrode 2 transport in this application.
[0051] In one or more embodiments, the wind deflector 3 is provided with reinforcing ribs 4.
[0052] See Figure 2 , Figure 3The reinforcing rib 4 is made of hard metal and connects the windproof part 31 and the flow guide part 32 of the windproof plate 3. With this arrangement, the shape of the windproof plate 3 can be maintained unchanged when it moves forward, ensuring the stability of the windproof plate 3 in blocking the airflow and further improving the stability of the electrode sheet 2 conveying in this application.
[0053] In one or more embodiments, the position of the wind deflector 3 on the transfer body 1 can be adjusted.
[0054] See Figure 1 , Figure 3 The guide section 32 of the wind deflector 3 has a waist-shaped hole 321. The guide section 32 of the wind deflector 3 is installed on the transfer body 1 by bolts. When the wind deflector 3 needs to be finely adjusted, the bolts are loosened and the position of the wind deflector 3 is adjusted. It has the characteristics of simple structure and convenient operation. In addition, when the wind deflector 3 needs to be raised, a pad can be added between the guide section 32 of the wind deflector 3 and the transfer body 1.
[0055] In addition, the present invention also provides an electrode welding device, which has an electrode transfer blocking mechanism as described in any of the above embodiments. The electrode transfer blocking mechanism is used to transport the stacked electrode sheets 2, and the electrode welding device is used to weld the electrode sheets 21 of the electrode sheets 2 transported by the electrode transfer blocking mechanism.
[0056] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They cannot be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.
[0057] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A tab transfer blocking mechanism, characterized in that, include: A transfer body for conveying electrode sheets and having a support portion for placing the electrode sheets; A wind deflector is disposed on the transfer body and positioned at the front of the bearing part in the forward direction, with the top of the wind deflector being higher than the top surface of the bearing part.
2. The electrode transfer blocking mechanism according to claim 1, characterized in that: Along the forward direction of the bearing portion, the wind deflector completely covers at least the side of the bearing portion.
3. The electrode transfer blocking mechanism according to claim 1, characterized in that: The distance between the wind deflector and the supporting part is 10-20mm.
4. The electrode transfer blocking mechanism according to claim 1, characterized in that: The wind deflector has a wind-blocking part and a flow-guiding part. The flow-guiding part is located at the lower part of the wind-blocking part and is directly opposite the supporting part. The flow-guiding part is used to guide the airflow blowing towards the wind deflector in a downward direction.
5. The electrode transfer blocking mechanism according to claim 4, characterized in that: The flow guide is a continuous and smooth arc-shaped curved surface structure.
6. The electrode transfer blocking mechanism according to claim 4, characterized in that: The guide section is a bending structure that bends at least once toward the bearing section.
7. The electrode transfer blocking mechanism according to claim 1, characterized in that: The thickness of the wind deflector is 1-10mm.
8. The electrode transfer blocking mechanism according to claim 1 or 7, characterized in that: The wind deflector is equipped with reinforcing ribs.
9. The electrode transfer blocking mechanism according to claim 1, characterized in that: The position of the wind deflector on the transfer body is adjustable.
10. A tab welding device, characterized in that, Includes the electrode transfer blocking mechanism as described in any one of claims 1-9 above.