Tab double-sided adhesive tape pasting equipment

Abstract

The utility model relates to the technical field of rubberizing equipment, and discloses tab double-sided rubberizing equipment, which comprises a conveying mechanism used for conveying a battery cell to be rubberized, adjusting the position of the battery cell to an initial position and then conveying the battery cell to a rubberizing position; and the rubberizing mechanism is arranged at the tail end of the conveying mechanism and is used for rubberizing the welding positions on the tabs. According to the utility model, through the arrangement of the conveying mechanism, the positions, including the initial position and the rubberizing position, of the battery cell can be adjusted, so that the whole rubberizing process flow is standardized, inaccurate rubberizing caused by position errors is reduced, and the processing yield is improved; and through cooperation of the rubberizing mechanism and the conveying mechanism, double-sided leveling and rubberizing are carried out on the welding position of the tab, rubberizing wrinkling is avoided, and the sealing performance of the rubberizing procedure is better.

Description

Technical Field

[0001] The utility model relates to the technical field of glue sticking equipment, in particular to a double-sided glue sticking equipment for a tab. Background Art

[0002] During battery production, tabs are reserved on the cell's electrode sheets. These tabs are then welded to the external tabs. After welding, tab glue is applied to the external tabs. This glue is then bonded to the aluminum-plastic film to complete the package. However, because the welds are rough and hard, they can easily pierce the PP layer of the aluminum-plastic film, causing the battery's outer packaging seal to fail. Therefore, protective tape is applied to the welds during production.

[0003] Because the soft tape has the elasticity to shrink and stretch, and is also sticky, when the tape is cut according to the designed size specifications and pasted onto the bare battery body and the positive and negative tabs, the tape is stretched during the pasting process, or the pasting is inaccurate due to differences in the battery cell processing positions. The tape is prone to incomplete fit between the tabs at the height difference between the core body and the tabs. At the same time, the tape will undergo elastic contraction. Due to the elastic contraction of the tape, the tabs of the positive and negative electrodes of the bare battery cell are pulled up and deformed by the tape, causing the tabs to wrinkle or break. Utility Model Content

[0004] The utility model aims at the shortcomings of the prior art and provides a double-sided glue sticking device for a tab.

[0005] In order to solve the above technical problems, the present invention solves them through the following technical solutions.

[0006] A double-sided tab gluing device includes a transport mechanism for transporting battery cells to be glued, adjusting the battery cells to their initial positions and then transporting them to the gluing positions; and a gluing mechanism disposed at the end of the transport mechanism for gluing the welding positions on the tabs.

[0007] Preferably, the transport mechanism includes a transport frame and a fixed suction cup, a transport channel is provided in the transport frame, movable grooves are provided on both sides of the transport channel, tracks are provided in the movable grooves, the fixed suction cup is provided on the track, the fixed suction cup is connected to a first drive motor, the first drive motor controls the fixed suction cup to move along the track direction, and the first drive motor is connected to a PLC controller.

[0008] Preferably, two symmetrically arranged limit blocks are provided on the transport channel for placing the battery cells in their initial positions. The limit blocks are connected to pressure sensors that transmit signals to the PLC controller.

[0009] Preferably, the distance between the limit blocks is smaller than the width of the battery cell and larger than the width of the tab. A relay spring is connected inside the limit block, which is connected to the PLC controller. The relay spring controls the limit block to extend and retract in the vertical direction.

[0010] Preferably, the transport channel width matches the battery cell width.

[0011] Preferably, the gluing mechanism includes an upper gluing block and a lower gluing block, each of which includes a driving member, a gluing member and an adsorption component, the output end of the driving member is connected to the gluing member and controls the opening or closing of the gluing block; the adsorption component is arranged on the side of the gluing member close to the welding position, and a negative pressure cylinder is connected to the outside of the adsorption component for adsorbing the tape.

[0012] Preferably, the gluing mechanism further includes an upper flattening member and a lower flattening member, both of which are connected to a connecting rod, both sides of the connecting rod are connected to movable guide rails, and the movable guide rails are connected to a second drive motor.

[0013] Preferably, the upper flattening member and the lower flattening member are air expansion rollers, and the outer sides of both are wrapped with rubber material.

[0014] Due to the adoption of the above technical solutions, the utility model has significant technical effects: the utility model can adjust the position of the battery cell, including the initial position and the gluing position, through the setting of the transportation mechanism, so as to standardize the entire gluing process flow, reduce inaccurate gluing due to position error, and improve the processing yield rate; through the cooperation of the gluing mechanism and the transportation mechanism, the double-sided leveling and gluing of the tab welding position are performed, which avoids wrinkling of the glue and makes the gluing process more sealed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a double-sided tab gluing device of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the transport mechanism and the upper and lower flattening members in a double-sided tab gluing device of the present invention;

[0017] Figure 3 yes Figure 2 A magnified schematic diagram of the structure at A;

[0018] Figure 4 The utility model is a structural schematic diagram of an upper adhesive bonding block and a lower adhesive bonding block in a double-sided adhesive bonding device for tabs.

[0019] In the figure: 1 - battery cell, 2 - transport rack, 21 - transport channel, 22 - moving groove, 23 - track,

[0020] 231 - fixed suction cup, 24 - limit block, 31 - driving member, 32 - adhesive member, 33 - adsorption assembly, 41 - connecting rod, 42 - movable guide rail, 43 - expansion roller. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] like Figures 1 to 4 As shown, it shows a double-sided gluing device for tabs provided by an embodiment of the present application, including a transport mechanism for transporting the battery cell 1 to be glued, adjusting the position of the battery cell 1 to the initial position and then transporting it to the gluing position. After the battery cell 1 is transported to the initial position, it is convenient for the subsequent transport mechanism to determine the transport distance, so that the battery cell 1 can be transported to the target station, and then the tabs are accurately glued; the gluing mechanism is set at the end of the transport mechanism, and is used to glue the welding position on the tab. Before gluing, there may be some uneven areas at the tab welding position. If it is first leveled and then glued, the sealing of the tab glue will be improved.

[0023] In some embodiments, the transport mechanism includes a transport frame 2 and a fixed suction cup 231. A transport channel 21 is provided in the transport frame 2. The width of the transport channel 21 matches the width of the battery cell 1. It can be ensured that the battery cell 1 will not be displaced too much after being placed in, which is convenient for subsequent processing. Moving grooves 22 are provided on both sides of the transport channel 21. Tracks 23 are provided in the moving grooves 22. Fixed suction cups 231 are provided on the tracks 23. The fixed suction cups 231 are used to be fixed on both sides of the battery cell 1, thereby driving the battery cell 1 to move. The fixed suction cups 231 are connected to a first drive motor. The first drive motor controls the fixed suction cups 231 to move along the direction of the track 23. The first drive motor (not shown in the figure) is connected to a PLC controller (not shown in the figure).

[0024] The transport channel 21 of the present embodiment is provided with two symmetrically arranged limit blocks 24 for placing the battery cell 1 in its initial position. The limit blocks 24 are connected to pressure sensors, which transmit signals to the PLC controller. After the battery cell 1 enters the transport channel 21, its position is uncertain. Therefore, the limit blocks 24 need to be ejected and abutted against the battery cell 1 to determine its position. At the same time, the fixed suction cup 231 clamps the two sides of the battery cell 1. At this time, the pressure sensor obtains the pressure value and sends a signal to the PLC controller. The distance between the initial position and the gluing position can then be obtained, which is the distance moved by the fixed suction cup 231, so that the battery cell 1 can enter the standard processing position. In this embodiment, the distance between the limit blocks 24 is smaller than the width of the battery cell 1 and larger than the width of the tab, so that both ends of the battery cell 1 can rest against the limit blocks 24. A relay spring (not shown in the figure) is connected to the limit block 24, and the relay spring is connected to the PLC controller. The relay spring controls the extension and retraction of the limit block 24 in the vertical direction. That is, after the initial position is acquired and the fixed suction cup 231 is tightened, the PLC controller sends an open signal, and the limit block 24 descends to allow the battery cell 1 to pass.

[0025] In the embodiment of the present application, the glue sticking mechanism further includes an upper flattening member and a lower flattening member, both of which are connected to a connecting rod 41, and movable guide rails 42 are connected to both sides of the connecting rod 41, and the movable guide rails 42 are connected to a second drive motor (not shown in the figure). Before glue sticking, the weld moved to the first station is flattened, such as Figure 2 As shown, the upper flattening piece and the lower flattening piece are respectively moved toward the middle by the movable guide rail 42 until they move to the target position. The upper flattening piece and the lower flattening piece are air-expansion rollers 43, and the outer sides are wrapped with rubber material. The soft material can enable the air-expansion rollers 43 to inflate and press the irregular areas of the welding position to facilitate the subsequent gluing work.

[0026] In some embodiments, the gluing mechanism further includes an upper gluing block and a lower gluing block, each of which includes a driver 31, a gluing member 32, and an adsorption assembly 33. The output end of the driver 31 is connected to the gluing member 32 and controls the distance or proximity between the gluing blocks, thereby completing the gluing process for the tabs. The adsorption assembly 33 is disposed on the side of the gluing member 32 near the welding position, and is externally connected to a negative pressure cylinder for adsorbing the adhesive tape. The battery cell 1 is further transported to the gluing position by the transport mechanism, and the upper and lower gluing blocks apply glue to the leveled welds, which can significantly improve the sealing and yield rate of the gluing.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device comprising a series of elements are inherent to the elements. In the absence of further restrictions, the elements limited by the statement "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device comprising the elements. In addition, the above-mentioned technical solutions provided in the embodiments of the present application are not described in detail in accordance with the corresponding technical solutions in the prior art to achieve the same principle, so as to avoid excessive elaboration.

[0028] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-sided tab gluing device, characterized by: It comprises a transport mechanism for transporting a battery cell (1) to be glued, adjusting the position of the battery cell (1) to an initial position and then transporting it to a glue-sticking position; and a glue-sticking mechanism arranged at the end of the transport mechanism for performing glue-sticking work on a welding position on a pole lug.

2. The double-sided tab gluing device according to claim 1, characterized in that: The transport mechanism comprises a transport frame (2) and a fixed suction cup (231); a transport channel (21) is provided in the transport frame (2); movable grooves (22) are provided on both sides of the transport channel (21); a track (23) is provided in the movable groove (22); the fixed suction cup (231) is provided on the track (23); the fixed suction cup (231) is connected to a first drive motor; the first drive motor controls the fixed suction cup (231) to move along the track (23); and the first drive motor is connected to a PLC controller.

3. The double-sided tab gluing device according to claim 2, characterized in that: Two symmetrically arranged limit blocks (24) are provided on the transport channel (21) for placing the battery core (1) at an initial position. The limit blocks (24) are connected to a pressure sensor, which transmits a signal to a PLC controller.

4. The double-sided tab gluing device according to claim 3, characterized in that: The distance between the limit blocks (24) is smaller than the width of the battery core (1) and larger than the width of the tab. A relay spring is connected inside the limit block (24), and the relay spring is connected to the PLC controller. The relay spring controls the limit block (24) to extend and retract in the vertical direction.

5. The double-sided tab gluing device according to claim 2, characterized in that: The width of the transport channel (21) matches the width of the battery cell (1).

6. The double-sided tab gluing device according to claim 1, characterized in that: The gluing mechanism comprises an upper gluing block and a lower gluing block, each of which comprises a driving member (31), a gluing member (32) and an adsorption assembly (33). The output end of the driving member (31) is connected to the gluing member (32) and controls the opening or closing of the gluing block. The adsorption assembly (33) is arranged on the side of the gluing member (32) close to the welding position. The adsorption assembly (33) is externally connected to a negative pressure cylinder for adsorbing the adhesive tape.

7. The double-sided tab gluing device according to claim 6, characterized in that: The gluing mechanism further comprises an upper flattening member and a lower flattening member, both of which are connected to a connecting rod (41), both sides of the connecting rod (41) are connected to movable guide rails (42), and the movable guide rails (42) are connected to a second driving motor.

8. The double-sided tab gluing device according to claim 7, characterized in that: The upper flattening member and the lower flattening member are air expansion rollers (43), and the outer sides of the rollers are both wrapped with rubber materials.

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