Cylindrical battery cell end face glue pressing mechanism
The adhesive pressing mechanism, which combines the reference side axial slide, the floating side axial slide, and the cross-cutting slide, achieves three-stage pressing of the adhesive tape on the end face of the battery cell. This solves the problem of poor tape adhesion in traditional adhesive pressing mechanisms and improves the yield rate of battery cells and the accuracy of automated control.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-24
- Publication Date
- 2026-03-13
AI Technical Summary
Traditional cell end-face adhesive bonding mechanisms cannot guarantee effective adhesion between the tape and the cell end face, which can easily lead to defective products.
The system employs a reference-side axial slide and a floating-side axial slide in conjunction with a transverse-cutting slide. The tape on the circumferential wall of the battery cell is applied in three stages using a first folding head, a second folding head, and a glue-applying head. Combined with a clamping assembly, this ensures that the tape is applied smoothly.
It improves the adhesion of the tape on the end face of the battery cell, avoids lifting and delamination, increases the yield rate, and achieves a high degree of automation through PLC control.
Smart Images
Figure CN223993276U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery cell production technology, and in particular to a cylindrical battery cell end face pressing mechanism. Background Technology
[0002] Please refer to the instruction manual appendix. Figure 1 In the production process of cylindrical batteries, the tape wrapping process plays a crucial role. By wrapping the cell 100 with tape 101, it is ensured that the battery will not have an internal short circuit during charging and discharging. At the same time, the tape 101 wrapped on the cell 100 can also play a role in positioning and buffering, reducing the risk of internal failure of the battery.
[0003] Typically, after applying tape 101 to the battery cell 100 at the adhesive application station, the excess tape 101 needs to be pressed onto the end face of the battery cell 100 at the pressing station. In actual operation, traditional battery cell end-face pressing mechanisms, because they only perform a single end-face pressing of the tape 101, cannot guarantee the adhesion between the pressed tape 101 and the end face of the battery cell 100, easily resulting in defective products. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a cylindrical battery cell end face pressing mechanism to overcome the deficiencies in existing technologies.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A cylindrical battery cell end face pressing mechanism includes a lifting assembly, a reference side axial slide, a floating side axial slide, a transverse cutting slide, a reference side pressing assembly, and a floating side pressing assembly.
[0007] The reference-side axial slide and the floating-side axial slide are arranged opposite to each other at both ends of the battery cell, and both can reciprocate along the axial direction of the battery cell under the drive of the cylinder; the reference-side adhesive assembly is installed on the reference-side axial slide and reciprocates with the reference-side axial slide, and the floating-side adhesive assembly is installed on the floating-side axial slide and reciprocates with the floating-side axial slide.
[0008] The reference side axial slide is mounted on the transverse slide and moves laterally reciprocatingly under the drive of the cylinder.
[0009] The reference side pressure assembly includes a first folding head, a second folding head, and a glue-applying head disposed on a switching seat; the first folding head is inserted into the second folding head; the glue-applying head and the second folding head are fixedly disposed side by side on the switching seat.
[0010] Furthermore, the switching seat is mounted on the reference side axial slide and reciprocates with the reference side axial slide; the second folding head is fixedly mounted on the switching seat, and the second folding head and the switching seat have a coaxial through assembly cavity, in which a pressure return spring is provided; the first folding head is located in the assembly cavity, the inner end of the first folding head is connected to the pressure return spring, and the outer end of the first folding head protrudes beyond the second folding head.
[0011] Furthermore, a plurality of circumferentially evenly distributed arc-shaped guide blocks are provided on the outer end face of the first folding pressure head, and the arc surface of the arc-shaped guide blocks protrudes in the direction of the center of the first folding pressure head.
[0012] Furthermore, the end face pressing mechanism of this case also includes a cell pressing assembly, which includes a pressing slide driven by a pressing cylinder, and a pressing block is provided on the pressing slide.
[0013] Preferably, the end of the rubber pressing head is provided with a rubber head.
[0014] Preferably, the lifting assembly includes a lifting support plate disposed below the battery cell.
[0015] Preferably, the floating side pressure adhesive assembly includes a floating side top core.
[0016] Preferably, there are four sets of lifting support plates.
[0017] Preferably, the cell clamping assembly includes two clamping slides and two corresponding clamping blocks.
[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0019] 1) The cylindrical battery cell end face pressing mechanism of this case performs three pressing actions on the adhesive on the circumferential wall of the cell through the first folding pressing head, the second folding pressing head and the adhesive pressing head, respectively. This avoids problems such as the tape lifting and peeling off the end face of the cell due to the adhesion between the adhesive surfaces of the tape. The tape is pressed flat and pasted onto the end face of the cell without wrinkles or bubbles, resulting in a high yield.
[0020] 2) The cylindrical battery cell end face pressing mechanism of this case has all linkage functions centrally controlled by the equipment PLC, and the relevant data is uploaded to the MES. It has a high degree of automation and precise action control.
[0021] To provide a clearer understanding of this invention, the preferred embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description
[0022] Figure 1 This is a schematic diagram showing the location of the adhesive tape on the battery cell in the background technology.
[0023] Figure 2 This is a schematic diagram of the overall structure of the pressure bonding station in this utility model;
[0024] Figure 3 This is a partial enlarged view of the pressure bonding station in this utility model;
[0025] Figure 4 This is a schematic diagram of the reference side pressure adhesive assembly in this utility model;
[0026] Figure 5 for Figure 4 Cross-sectional view of the central reference side pressure bonding assembly;
[0027] Figure 6 This is a schematic diagram of the lifting component in this utility model.
[0028] Attached Figure Labels
[0029] 1-Lifting support plate, 2-Reference side axial slide, 3-Floating side axial slide, 4-Cross-cutting slide, 5-Switching seat, 6-First folding head, 7-Second folding head, 8-Glue pressing head, 51-Glue pressing return spring, 61-Arc-surface guide block; 90-Pressure slide, 91-Pressure block; 100-Battery cell, 101-Adhesive tape. Detailed Implementation
[0030] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0031] Furthermore, if terms such as "first" or "second" are used for descriptive purposes only, they are mainly used to distinguish different devices, components or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, components or parts, and should not be construed as indicating or implying relative importance.
[0032] Furthermore, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; 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 be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0033] Please also refer to Figure 1-6 This utility model provides a cylindrical battery cell end face pressing adhesive mechanism, including a lifting assembly, a reference side axial slide 2, a floating side axial slide 3, a transverse cutting slide 4, a reference side pressing adhesive assembly, a floating side pressing adhesive assembly, and a cell pressing assembly.
[0034] The lifting assembly includes a lifting plate 1 driven by a lifting cylinder, which is used to lift and support the battery cell 100 that has been glued to the circumferential wall and transferred from the previous process.
[0035] The reference side axial slide 2 and the floating side axial slide 3 are arranged opposite to each other at both ends of the battery cell 100, and both can reciprocate along the axial direction of the battery cell 100 under the drive of the cylinder; the reference side adhesive assembly is installed on the reference side axial slide 2 and reciprocates with the reference side axial slide 2, and the floating side adhesive assembly is installed on the floating side axial slide 3 and reciprocates with the floating side axial slide 3.
[0036] The reference side axial slide 2 is mounted on the transverse slide 4 and moves laterally reciprocatingly with the transverse slide 4 under the drive of the cylinder. This allows the reference side pressure assembly mounted on the reference side axial slide 2 to switch between the pressure head and the tap head by moving laterally. It should be understood that the reference side axial slide 2 can move laterally reciprocally along the axial direction of the cell 100.
[0037] A floating-side pressure bonding assembly, comprising a floating-side top core that can hold the cell 100 from the floating side.
[0038] The reference side pressure assembly includes a first folding pressure head 6, a second folding pressure head 7, and a glue-applying pressure head 8, which are disposed on the switching seat 5.
[0039] The switching seat 5 is mounted on the reference side axial slide 2 and reciprocates with the reference side axial slide 2;
[0040] The second folding head 7 is fixedly installed on the switching seat 5, and the second folding head 7 and the switching seat 5 have a coaxial through assembly cavity, and a pressure return spring 51 is provided in the assembly cavity.
[0041] The first folding head 6 is inserted into the second folding head 7 and located in the assembly cavity. The inner end of the first folding head 6 is connected to the adhesive return spring 51, and the outer end of the first folding head 6 protrudes outside the second folding head 7, so that the first folding head 6 contacts the tape 101 on the battery cell 100 before the second folding head 7. Under the action of the adhesive return spring 51, the first folding head 6 can extend and retract within the second folding head 7. It should be understood that the first folding head 6 is restricted to ensure that it will not fall out of the second folding head 7.
[0042] Furthermore, a plurality of circumferentially evenly distributed arc-shaped guide blocks 61 are provided on the outer end face of the first folding head 6, and the arc surface of the arc-shaped guide blocks 61 protrudes towards the center of the first folding head 6; under the guiding action of the arc-shaped guide blocks 61, when the first folding head 6 presses down on the tape 101 wrapped around the circumferential wall of the battery cell 100, the tape 101 naturally folds towards the center of the battery cell 100;
[0043] The glue-applying head 8 and the second folding head 7 are fixedly arranged side by side on the switching seat 5, and the end of the glue-applying head 8 is provided with a rubber head; under the lateral movement of the transverse cutting slide 4, the second folding head 7 and the glue-applying head 8 on the switching seat 5 can be alternately switched laterally, and aligned with the axis of the battery cell 100 and pressed the tape 101 in turn according to production needs.
[0044] The battery cell pressing assembly includes a pressing slide 90 driven by a pressing cylinder, and a pressing block 91 is provided on the pressing slide 90. The pressing slide 90 moves up and down with the pressing block 91 and presses the battery cell 100 to prevent the battery cell 100 from shifting on the lifting tray 1 due to the adhesiveness of the tape when the first folding head 6, the second folding head 7, or the adhesive applicator head 8 retracts, thus ensuring that the battery cell 100 that has descended into the tray can be accurately transferred to the subsequent process.
[0045] Preferably, in this embodiment, four sets of lifting plates 1 are provided, and the four sets of lifting plates 1 can lift four battery cells 100 at the same time.
[0046] Preferably, in this embodiment, the cell pressing assembly includes two pressing slides 90 and two corresponding pressing blocks 91. Each pressing block 91 can press two cells 100, so that the pressing mechanism can press four cells 100 at the same time, and the multi-station operation is more efficient.
[0047] The working principle or operation process is as follows:
[0048] 1. The equidistant transfer conveyor line transfers battery cell 100 from the adhesive application station to the pressing station;
[0049] 2. The lifting plate 1 in the lifting assembly lifts and positions the battery cell 100 from the slot;
[0050] 3. The reference side pressure adhesive assembly and the floating side pressure adhesive assembly on the slide table are simultaneously fed to both ends of the battery cell 100;
[0051] 4. The first folding head 6 first bends the tape 101 toward the center of the battery cell. The pressing return spring 51 is compressed, causing the first folding head 6 to retract into the second folding head 7, thus completing the first pressing action (i.e., tape folding action).
[0052] 5. The folded tape 101 is pressed and adhered to the end face of the battery cell by the second folding head 7. Then the reference side pressing assembly and the floating side pressing assembly return to reset, completing the second pressing action.
[0053] 6. The transverse sliding table 4 moves the switching seat 5 laterally, causing the glue-applying pressure head 8 to move laterally to the position facing the battery cell 100, thus completing the pressure head switching.
[0054] 7. The reference side pressing assembly and the floating side pressing assembly are fed to both ends of the cell 100 simultaneously again. The pressing head 8 presses the folded tape 101 onto the end face of the cell again, completing the third pressing action. Since the end of the pressing head 8 is a soft rubber head, the tape is pressed tightly and firmly onto the end face of the cell.
[0055] 8. The cell pressing assembly presses the cell 100, the reference side pressing assembly and the floating side pressing assembly retract and reset, and the pressing head 8 also retracts and resets, completing the cell end face pressing process.
[0056] 9. The lifting component lowers the battery cell 100 into the tray of the equidistant transfer conveyor line, and the battery cell 100 continues to be transferred to the next process.
[0057] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.
Claims
1. A cylindrical battery cell end face glue pressing mechanism, characterized in that: The jacking assembly, the reference side axial slide (2), the floating side axial slide (3), the transverse slide (4), the reference side rubber pressing assembly and the floating side rubber pressing assembly are included. The reference side axial slide (2) and the floating side axial slide (3) are oppositely arranged at both ends of the battery cell (100) and can reciprocate along the axial direction of the battery cell (100) under the driving of the air cylinder; the reference side rubber pressing assembly is installed on the reference side axial slide (2) and reciprocates with the reference side axial slide (2); and the floating side rubber pressing assembly is installed on the floating side axial slide (3) and reciprocates with the floating side axial slide (3). The reference side axial slide (2) is installed on the transverse slide (4) and reciprocates in the transverse direction with the transverse slide (4) under the driving of the air cylinder. The reference side rubber pressing assembly includes the first edge folding pressing head (6), the second edge folding pressing head (7) and the rubber pressing head (8) arranged on the switching seat (5); the first edge folding pressing head (6) is inserted into the second edge folding pressing head (7); and the rubber pressing head (8) and the second edge folding pressing head (7) are fixedly arranged side by side on the switching seat (5).
2. The cylindrical battery cell end face gluing mechanism according to claim 1, characterized in that: The switching seat (5) is installed on the reference side axial slide (2) and reciprocates with the reference side axial slide (2); the second edge folding pressing head (7) is fixedly installed on the switching seat (5) and has a coaxial assembly cavity with the switching seat (5), and a rubber pressing reset spring (51) is arranged in the assembly cavity; the first edge folding pressing head (6) is located in the assembly cavity, the inner end of the first edge folding pressing head (6) is connected with the rubber pressing reset spring (51), and the outer end of the first edge folding pressing head (6) is exposed outside the second edge folding pressing head (7).
3. The cylindrical battery cell end face pressing mechanism according to claim 2, characterized in that: A plurality of arc surface guide blocks (61) are arranged on the outer end surface of the first edge folding pressing head (6) and are uniformly distributed in the circumferential direction, and the arc surface of the arc surface guide block (61) protrudes towards the center of the first edge folding pressing head (6).
4. The cylindrical battery cell end face pressing mechanism according to claim 3, characterized in that: The battery cell pressing assembly includes a pressing slide (90) driven by a pressing cylinder.
5. The cylindrical battery cell end face pressing mechanism according to claim 4, characterized in that: The end of the rubber pressing head (8) is provided with a rubber head.
6. The cylindrical battery cell end face pressing mechanism according to claim 4, characterized in that: The jacking assembly includes a jacking support plate (1) arranged below the battery cell (100).
7. The cylindrical battery cell end face pressing mechanism according to claim 4, characterized in that: The floating side rubber pressing assembly includes a floating side battery cell jacking.
8. The cylindrical battery cell end face pressing mechanism according to claim 6, characterized in that: The jacking support plate (1) is provided with four groups.
9. The cylindrical battery cell end face pressing mechanism according to claim 4, characterized in that: The battery cell pressing assembly includes two pressing slides (90) and corresponding two pressing blocks (91).