Battery cell tab taping equipment

Abstract

The utility model discloses a kind of battery tab gumming equipment, comprising: machine table is provided with accommodating groove;Up and down synchronous gumming device, including lifting mechanism and gumming mechanism;Gumming mechanism includes pedestal, X-axis guide rail is provided on pedestal, X-axis guide rail is provided with first slider, first elastic member is connected between first slider and pedestal;The end of first slider is provided with Z-axis guide rail, second slider is provided on Z-axis guide rail, suction head is provided at the end of second slider, second elastic member is connected between second slider and first slider. By setting the pre-tightening force of first slider and second slider cooperation elastic member, suction head can be all-round self-adapting the step and gap of tab surface, ensure that the close, flat and wrinkle-free attachment of gum paper, significantly improve the gumming quality and product yield.

Description

Technical Field

[0001] This utility model relates to the field of battery cell processing, and in particular to a battery cell tab bonding equipment. Background Technology

[0002] In the manufacturing process of lithium-ion batteries, insulating tape needs to be applied to the tabs of the cells to prevent short circuits and ensure safety. Traditional tape application equipment often uses rigid application or unidirectional floating methods, which are difficult to effectively adapt to the step height differences and assembly gaps on the Z-shaped tab surface. This often results in uneven tape application, wrinkles, or air bubbles, seriously affecting the tape application quality and cell yield. In addition, applying tape to the upper and lower surfaces of the tabs separately is inefficient and may introduce cumulative errors due to the two positioning steps. Utility Model Content

[0003] The purpose of this invention is to provide a battery cell tab bonding device to solve the above-mentioned problems.

[0004] According to one aspect of this utility model, a battery cell tab adhesive application device is provided, comprising: a machine base, wherein a receiving groove for positioning the battery cell is provided in the middle; a top and bottom synchronous adhesive application device, respectively raised and lowered above and below the machine base, for synchronously applying adhesive to the top and bottom surfaces of the battery cell tab; the top and bottom synchronous adhesive application device includes a lifting mechanism and an adhesive application mechanism driven by the lifting mechanism; the adhesive application mechanism includes a base, an X-axis guide rail is provided on the base, two first sliders are slidably arranged on the X-axis guide rail, and the two first sliders are respectively connected to the corresponding sidewalls of the base with first elastic elements, the two first sliders tend to move closer to each other under the pre-tightening force of the first elastic elements; a Z-axis guide rail is provided at the end of the first slider, a second slider is slidably arranged on the Z-axis guide rail, the end of the second slider is provided with a suction head for adsorbing and applying adhesive paper, a second elastic element is connected between the second slider and the first slider, the second elastic element provides a pre-tightening force to the suction head toward the battery cell tab.

[0005] In some embodiments, both the first elastic element and the second elastic element are compression springs.

[0006] In some embodiments, the lifting mechanism is a lifting cylinder or a lifting motor.

[0007] In some embodiments, the suction tip is a silicone suction tip and is connected to a vacuum source via an air tube.

[0008] In some embodiments, two X-axis guide rails are arranged in parallel on each of the bases.

[0009] In some embodiments, adjacent suction heads have rounded or chamfered edges on their opposite sides.

[0010] In some embodiments, the lifting mechanism of the upper and lower synchronous adhesive applicator is synchronously driven by the same controller to ensure the consistency of the upper and lower adhesive applicator actions.

[0011] Compared with the prior art, the beneficial effects of this application are as follows:

[0012] This application, by setting a first slider and a second slider in conjunction with the pre-tightening force of the elastic element, enables the suction head to adapt to the steps and gaps on the electrode surface in all directions, ensuring tight, flat, and wrinkle-free adhesion of the adhesive tape, significantly improving the adhesive quality and product yield. The use of a synchronous upper and lower adhesive application device driven by the same controller allows for the completion of adhesive application on both the upper and lower electrode tabs in one operation, effectively improving production efficiency. Simultaneously, the parallel arrangement of the dual X-axis guide rails enhances the rigidity and stability of the floating structure, and the rounded or chamfered design of the suction head edges effectively avoids the risk of scratches. The overall structure is compact and reasonable, with a high degree of automation, making it highly suitable for large-scale industrial applications in battery cell manufacturing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the adhesive application mechanism of this utility model;

[0014] Figure 2 This is a partial structural diagram of the adhesive application mechanism of this utility model. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] refer to Figures 1 to 2This application provides a battery cell tab bonding device, comprising: a machine base with a receiving groove for positioning the battery cell in its central part; and upper and lower synchronous bonding devices, respectively raised and lowered above and below the machine base, for synchronously bonding the top and bottom surfaces of the battery cell tabs; the upper and lower synchronous bonding devices include a lifting mechanism and a bonding mechanism driven by the lifting mechanism; the bonding mechanism includes a base 1, an X-axis guide rail 2 is provided on the base 1, and two first sliders 3 are slidably arranged on the X-axis guide rail 2, and the two first sliders 3... A first elastic element 4 is connected to the corresponding side wall of the base 1. The two first sliders 3 tend to move closer to each other under the pre-tightening force of the first elastic element 4. A Z-axis guide rail 5 is provided at the end of the first slider 3. A second slider 6 is slidably arranged on the Z-axis guide rail 5. A suction head 7 for adsorbing and attaching adhesive paper is provided at the end of the second slider 6. A second elastic element 8 is connected between the second slider 6 and the first slider 3. The second elastic element 8 provides a pre-tightening force to the suction head 7 towards the battery cell tab.

[0017] In some embodiments, both the first elastic element 4 and the second elastic element 8 are compression springs. Using compression springs as elastic elements is simple in structure, low in cost, reliable in performance, and easy to purchase and replace. They can provide a stable and linear preload force, ensuring the sensitivity and consistency of the adhesive application mechanism's response, thereby guaranteeing the long-term stable operation of the equipment.

[0018] In some embodiments, the lifting mechanism is a lifting cylinder or a lifting motor.

[0019] In some embodiments, the suction head 7 is a silicone suction head and is connected to a vacuum source via an air tube. The silicone suction head is soft in texture, which can effectively avoid scratching the fragile tabs or adhesive paper during the application process, and can better conform to curved surfaces through slight deformation, thereby improving the seal; the use of vacuum source adsorption allows for rapid, stable and pollution-free gripping and release of adhesive paper, achieving a high degree of automation and cleanliness in the operation process.

[0020] In some embodiments, two X-axis guide rails 2 are arranged in parallel on each of the bases 1. This allows for simultaneous adhesive application to multiple tabs.

[0021] In some embodiments, adjacent suction heads 7 have rounded or chamfered edges on their opposite sides. The rounded or chamfered edges on the opposite sides of the suction heads 7 create a smooth transition surface, which greatly reduces the risk of interference, collision, or scratches with the battery tabs or other components during the adhesive application process.

[0022] In some embodiments, the lifting mechanism of the upper and lower synchronous adhesive applicator is synchronously driven by the same controller to ensure the consistency of the upper and lower adhesive applicator actions. Synchronizing the upper and lower lifting mechanisms with the same controller ensures the absolute synchronicity of the upper and lower adhesive applicator head movements, fundamentally avoiding poor adhesive application caused by timing errors.

[0023] Adhesive application process: The battery cell is precisely placed into the receiving slot of the machine. The vacuum source of the upper and lower adhesive application mechanisms is activated. Under vacuum, the suction head 7 firmly adheres to the pre-positioned adhesive paper. The controller issues a command to drive the upper and lower lifting mechanisms to move synchronously, causing the two adhesive application mechanisms to move towards each other, so that the adhesive paper carried on the suction head 7 smoothly approaches the upper and lower surfaces of the battery cell tabs. When the suction head 7 contacts the tab surface, if there is a step or height deviation in the tab, the second slider 6 will compress the second elastic element 8, causing it to float up and down in the Z-axis direction, ensuring that the adhesive paper is evenly pressed throughout. If there is a horizontal gap or unevenness in the tabs, the first slider 3 will compress the first elastic element 4, causing a slight displacement to the left and right in the X-axis direction, thus smoothly passing over the edge of the step and eliminating the horizontal gap. During this process, the flexibility of the silicone suction head itself will also undergo slight deformation, further assisting in the adhesion to the irregular curved surface. The lifting mechanism maintains a brief pressure holding state to ensure that the adhesive paper and the tabs are fully bonded, without bubbles or wrinkles. Once the adhesion is complete, the vacuum source is turned off, and the suction head 7 releases the adhesive paper. The up and down lifting mechanism drives the adhesive application mechanism to return to the initial position synchronously to prepare for the next adhesive application cycle.

[0024] This application, by setting the first slider 3 and the second slider 6 in conjunction with the pre-tightening force of the elastic element, enables the suction head 7 to adapt to the steps and gaps on the electrode surface in all directions, ensuring the tight, flat and wrinkle-free adhesion of the adhesive tape, significantly improving the adhesive quality and product yield. The use of a synchronous upper and lower adhesive application device driven by the same controller can complete the adhesive application of the upper and lower electrode tabs of the battery cell in one go, effectively improving production efficiency. At the same time, the parallel setting of the dual X-axis guide rails 2 enhances the rigidity and stability of the floating structure, and the rounded corners 9 or chamfer design of the suction head 7 effectively avoids the risk of scratches. The overall structure is compact and reasonable, with a high degree of automation, making it very suitable for large-scale industrial applications in battery cell manufacturing.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery cell tab bonding device, characterized in that, include: The machine has a accommodating slot in the middle for positioning battery cells; The upper and lower synchronous adhesive application devices are respectively raised and lowered above and below the machine platform to synchronously apply adhesive to the top and bottom surfaces of the battery cell tabs. The synchronous adhesive applicator includes a lifting mechanism and an adhesive applicator driven to lift by the lifting mechanism. The adhesive applicator includes a base, an X-axis guide rail is provided on the base, two first sliders are slidably arranged on the X-axis guide rail, and a first elastic element is connected between the two first sliders and the corresponding side wall of the base, and the two first sliders tend to move closer to each other under the pre-tightening force of the first elastic element. The first slider has a Z-axis guide rail at its end, and a second slider is slidably mounted on the Z-axis guide rail. The end of the second slider has a suction head for adsorbing and attaching adhesive tape. A second elastic element is connected between the second slider and the first slider, and the second elastic element provides a pre-tightening force to the suction head toward the battery cell tab.

2. The battery cell tab bonding equipment according to claim 1, characterized in that, Both the first elastic element and the second elastic element are compression springs.

3. The battery cell tab bonding equipment according to claim 1, characterized in that, The lifting mechanism is a lifting cylinder or a lifting motor.

4. The battery cell tab bonding equipment according to claim 1, characterized in that, The suction tip is a silicone suction tip and is connected to a vacuum source via an air tube.

5. The battery cell tab bonding equipment according to claim 1, characterized in that, Each of the bases has two X-axis guide rails arranged in parallel.

6. The battery cell tab bonding equipment according to claim 1, characterized in that, The adjacent suction heads have rounded or chamfered edges on their opposite sides.

7. The battery cell tab bonding equipment according to claim 1, characterized in that, The lifting mechanism of the upper and lower synchronous adhesive application device is driven synchronously by the same controller to ensure the consistency of the upper and lower adhesive application actions.

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