Pole piece rubberizing device

Abstract

The utility model relates to a pole piece rubberizing device. The pole piece rubberizing device comprises a rubberizing mechanism, an adhesive tape feeding mechanism and a connection mechanism, the rubberizing mechanism comprises two rubberizing rollers which are oppositely arranged, and a pole piece to be rubberized can pass through the rubberizing mechanism and is conveyed forwards under the cooperation of the rubberizing rollers. The connection mechanism is arranged between the adhesive tape pasting mechanism and the adhesive tape feeding mechanism. When the adhesive tape pasting operation is executed, the adhesive tape feeding mechanism provides an adhesive tape with a preset length, and then the connection mechanism transfers the adhesive tape provided by the adhesive tape feeding mechanism to the surface of one of the adhesive tape pasting rollers from the adhesive tape feeding mechanism. And along with the continuous rotation of the gluing roller, the adhesive tape on the surface of the gluing roller can be glued with the surface of the pole piece under the rolling action of the gluing roller. According to the pole piece rubberizing device, the pole piece can be kept being conveyed in the rubberizing process of the pole piece, and the pole piece does not need to stop conveying and wait for rubberizing, so that the production efficiency is favorably improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery equipment technology, and in particular to an electrode adhesive bonding device. Background Technology

[0002] In the battery cell manufacturing process, adhesive tape is typically applied to the surface of the electrode sheets first. This tape covers burrs and prevents powder from falling off during winding. Currently, the tape is usually cut to the required length, then a suction cup is used to pick it up and press it onto the electrode surface. During the tape application process, the electrode sheets need to be stopped from being fed to the machine; otherwise, alignment will be impossible. Because the electrode sheets need to be stopped while waiting for the tape to be applied, production efficiency is reduced. Utility Model Content

[0003] Therefore, it is necessary to provide an electrode adhesive application device that can complete the adhesive application during the electrode conveying process to address the above problems.

[0004] An electrode adhesive bonding device, comprising:

[0005] The adhesive application mechanism includes at least one adhesive application roller, and the electrode sheet to be adhesiveped can pass through the adhesive application mechanism and abut against the adhesive application roller;

[0006] The tape feeding mechanism is capable of providing tape of a preset length; and

[0007] A connecting mechanism is disposed between the adhesive applicator and the tape feeding mechanism, the connecting mechanism being able to transfer the tape provided by the tape feeding mechanism from the tape feeding mechanism to the surface of one of the adhesive applicator rollers.

[0008] In one embodiment, each of the adhesive rollers has a first adsorption hole formed on its surface.

[0009] In one embodiment, the tape feeding mechanism includes an unwinding mechanism, a tape pulling mechanism, and a cutting mechanism; the unwinding mechanism is capable of unwinding protective tape; the tape pulling mechanism is capable of pulling protective tape; the cutting mechanism is disposed between the unwinding mechanism and the tape pulling mechanism, and is capable of cutting the protective tape to obtain tape of a preset length.

[0010] In one embodiment, the adhesive pulling mechanism includes an adhesive pulling guide rail, a first adhesive pulling rod, and a second adhesive pulling rod. Both the first adhesive pulling rod and the second adhesive pulling rod are slidably mounted on the adhesive pulling guide rail, and the second adhesive pulling rod can slide to abut against the adhesive pulling rod.

[0011] In one embodiment, the adhesive pulling mechanism further includes a first telescopic drive member and a second telescopic drive member, wherein the first adhesive pulling rod and the second adhesive pulling rod are respectively mounted on the adhesive pulling guide rail via the first telescopic drive member and the second telescopic drive member.

[0012] In one embodiment, the first adhesive-pulling rod is located on the side of the second adhesive-pulling rod facing the unwinding mechanism, the surface of the first adhesive-pulling rod is formed with a third adsorption hole, and the first adhesive-pulling rod is rotatable about its own axis.

[0013] In one embodiment, the tape feeding mechanism further includes a clamping mechanism disposed between the cutting mechanism and the unwinding mechanism. The protective tape pulled by the tape pulling mechanism passes through the clamping mechanism, which can clamp or release the protective tape.

[0014] In one embodiment, the clamping mechanism includes an opening and closing drive member, an upper jaw, and a lower jaw. The upper jaw and the lower jaw are both connected to the opening and closing drive member and can move closer to or further away from each other under the drive of the opening and closing drive member.

[0015] In one embodiment, the tape feeding mechanism further includes a buffer mechanism disposed between the cutting mechanism and the unwinding mechanism, wherein the protective tape unwound by the unwinding mechanism passes through the buffer mechanism, and the buffer mechanism is capable of buffering or releasing the protective tape.

[0016] In one embodiment, the buffer mechanism includes a support, a buffer roller slidably mounted on the support, and an elastic element, the two ends of which are respectively connected to the support and the buffer roller.

[0017] In one embodiment, the bracket is provided with a support rail, the buffer roller is slidably mounted on the support rail via a slider, and elastic elements are provided on both sides of the slider, with each elastic element having its two ends connected to the bracket and the slider respectively.

[0018] In one embodiment, the buffer mechanism further includes an adjusting screw that engages with the bracket and is connected to the end of the elastic member away from the buffer roller.

[0019] In one embodiment, the connecting mechanism includes a connecting roller and a connecting drive, the connecting roller being tractively connected to the connecting drive and being able to move between the tape feeding mechanism and the adhesive applicator under the drive of the connecting drive, and the connecting roller being able to move to be in contact with one of the adhesive applicator rollers.

[0020] In one embodiment, the surface of the connecting roller is formed with a second adsorption hole.

[0021] In one embodiment, the adhesive applicator includes two adhesive applicator rollers arranged opposite each other, and the electrode to be applicated can pass between the two adhesive applicator rollers.

[0022] In one embodiment, the tape feeding mechanism and the connecting mechanism are provided on opposite sides of the adhesive applicator, and the connecting mechanisms on both sides can transfer the tape from the tape feeding mechanism to the surfaces of the two adhesive applicator rollers respectively.

[0023] In the aforementioned electrode coating device, the electrode to be coated passes through the coating mechanism and is conveyed forward with the assistance of the coating rollers. During the coating operation, a tape of a preset length is first provided by a tape feeding mechanism, and then a connecting mechanism transfers the tape from the tape feeding mechanism to the surface of one of the coating rollers. As the coating rollers rotate continuously, the tape on the roller surface adheres to the electrode surface under the pressure of the rollers. Therefore, the electrode can be continuously conveyed during the coating process, without needing to stop conveying while waiting for coating, thus improving production efficiency. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the electrode adhesive application device in one embodiment of the present invention;

[0026] Figure 2 for Figure 1 A schematic diagram of the adhesive roller in the electrode adhesive application device shown;

[0027] Figure 3 for Figure 1 A schematic diagram of the adhesive application mechanism in the electrode bonding device shown;

[0028] Figure 4 for Figure 3 A side view of the part of the adhesive pulling mechanism shown, where the first adhesive pulling rod is located.

[0029] Figure 5 for Figure 1 A schematic diagram of the connecting roller structure in the electrode adhesive application device shown;

[0030] Figure 6 for Figure 1 A schematic diagram of the clamping mechanism in the electrode bonding device shown;

[0031] Figure 7 for Figure 1 The diagram shows the structure of the buffer mechanism in the electrode bonding device. Detailed Implementation

[0032] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0033] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0037] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0038] Please see Figure 1 In one embodiment of the present invention, the electrode adhesive applicator 10 includes an adhesive applicator 100, an adhesive tape feeding mechanism A, and a connecting mechanism 500.

[0039] The adhesive applicator 100 can apply adhesive tape of a preset length to the surface of the electrode 20 to be adhesiveped. The adhesive applicator 100 includes at least one adhesive applicator roller 110. The electrode 20 to be adhesiveped can pass through the adhesive applicator 100 and abut against the adhesive applicator roller 110. Specifically, in this embodiment, the adhesive applicator 110 includes two adhesive applicator rollers 110 arranged opposite each other, and the electrode 20 to be adhesiveped can pass between the two adhesive applicator rollers 110. The two adhesive applicator rollers 110 cooperate to better hold the electrode 20, thereby improving the stability of the electrode 20 when passing through the adhesive applicator 100. Of course, in other embodiments, only one adhesive applicator roller 110 may be provided.

[0040] More specifically, the two adhesive-applying rollers 110 are parallel to each other, and a gap is formed between them for the electrode sheet 20 to pass through. The electrode sheet 20 to be applied can pass through the gap between the two adhesive-applying rollers 110. The two adhesive-applying rollers 110 can rotate under the drive of a driving component, such as a motor, thereby driving the electrode sheet 20 forward. Of course, the two adhesive-applying rollers 110 may also not be connected to a driving component, but instead rotate passively under the drive of the electrode sheet 20.

[0041] The tape feeding mechanism A can provide tape of a preset length, and the splicing mechanism 500 is disposed between the adhesive applicator 100 and the tape feeding mechanism A. Furthermore, the splicing mechanism 500 can transfer the tape provided by the tape feeding mechanism A from the tape feeding mechanism A to the surface of one of the adhesive applicator rollers 110. Figure 2 As shown, specifically in this embodiment, each adhesive roller 110 has a first adsorption hole 111 formed on its surface. The interior of the adhesive roller 110 also has an air passage (not shown) communicating with the first adsorption hole 111, and this air passage can communicate with a negative pressure device. When the adhesive tape is transferred to the adhesive roller 110, the air passage of the adhesive roller 110 is opened, so the adhesive tape can be adsorbed by the adhesive roller 110, thereby smoothly achieving tape transfer and preventing the tape from detaching.

[0042] As the adhesive roller 110 rotates, the adhesive tape on its surface adheres to the electrode 20 passing between the two adhesive rollers 110 under the roller pressure. During the adhesive application operation, a preset length of adhesive tape is first provided by the tape feeding mechanism A, and then the connecting mechanism 500 transfers the tape provided by the tape feeding mechanism A to the surface of one of the adhesive rollers 110. As the adhesive roller 110 rotates continuously, the adhesive tape on its surface adheres to the surface of the electrode 20 under the roller pressure, while the electrode 20 continues to be conveyed. That is, the electrode 20 does not need to stop conveying while waiting for adhesive application, thus helping to improve production efficiency.

[0043] More importantly, because the adhesive roller 110 remains in constant contact with the electrode 20, the tension of the electrode 20 can be maintained relatively stably. During the process of the connecting mechanism 500 transferring the tape to the adhesive roller 110, the tension of the electrode 20 is not significantly affected. After the tape transfer is complete, the connecting mechanism 500 moves away from the adhesive roller 100, and then the adhesive roller 110 rolls the tape onto the surface of the electrode 20. Thus, the tape rolling operation by the adhesive roller 110 can significantly reduce tension fluctuations in the electrode 20 during the adhesive application process, thereby also helping to improve the quality of the adhesive application.

[0044] Specifically, the tape has a smooth surface and an adhesive surface, the adhesive surface of which is sticky. When the tape is transferred to the surface of the applicator roller 110, its adhesive surface faces outwards, that is, away from the surface of the applicator roller 110. Therefore, during the rolling process, the adhesive surface of the tape will face the electrode 20, thereby ensuring reliable bonding between the tape and the electrode 20. To avoid adhesion, the surface of the applicator roller 110 is generally treated with an anti-stick coating.

[0045] Furthermore, in actual production, adhesive needs to be applied to both sides of the electrode sheet 20 in the thickness direction. Therefore, in this embodiment, adhesive application mechanism 100 is provided with tape feeding mechanism A and connecting mechanism 500 on opposite sides, and the connecting mechanism 500 on both sides can transfer the tape from tape feeding mechanism A to the surface of the two adhesive application rollers 110 respectively.

[0046] Two sets of tape feeding mechanism A and connecting mechanism 500 are provided, and are generally symmetrically distributed on both sides of the adhesive application mechanism 100. Each tape feeding mechanism A can provide tape of a preset length, and each connecting mechanism 500 can transfer the tape provided by the corresponding tape feeding mechanism A to the surface of the adhesive application roller 110. In this way, the two adhesive application rollers 110 can simultaneously apply adhesive to both sides of the electrode sheet 20, thereby further improving production efficiency.

[0047] The tape feeding mechanism A can provide tape of a preset length in various ways. For example, in this embodiment, the tape feeding mechanism A includes an unwinding mechanism 120, a tape pulling mechanism 130, and a cutting mechanism 140.

[0048] The unwinding mechanism 200 generally includes an unwinding shaft, on which the protective adhesive tape roll is pre-installed. The unwinding mechanism 200 unwinds the protective adhesive tape 30 during the application process. Correspondingly, the protective adhesive tape 30 also has a smooth surface and an adhesive surface. The adhesive pulling mechanism 130 pulls the protective adhesive tape 30. Specifically, the adhesive pulling mechanism 300 can clamp the end of the protective adhesive tape 30 unwound by the unwinding mechanism 200 and pull out the required length of protective adhesive tape 30. The cutting mechanism 140 is disposed between the unwinding mechanism 120 and the adhesive pulling mechanism 130, and can cut the protective adhesive tape 30 between the unwinding mechanism 200 and the adhesive pulling mechanism 300 to obtain a tape of a preset length. The cutting mechanism 400 generally includes a cutter and a cutting drive, which drives the cutter to reciprocate, thereby cutting the protective adhesive tape 30. Of course, the cutting mechanism 400 can also use other methods such as laser cutting to cut the protective adhesive tape 30.

[0049] It should be noted that in other embodiments, the tape feeding mechanism A may pre-store tape of a preset length in a material box and discharge the tapes one by one during application. Alternatively, the protective adhesive tape 30 may be first laminated with the base material tape (not shown) to obtain a composite tape, and then the protective adhesive tape 30 may be cut to obtain multiple tapes arranged sequentially on the base material tape. The tape feeding mechanism A first winds up the composite tape, and then unwinds the composite tape during application, tearing the tapes sequentially from the base material tape.

[0050] Please refer to the following: Figure 3 and Figure 4In this embodiment, the adhesive pulling mechanism 300 includes an adhesive pulling guide rail 310, a first adhesive pulling rod 320 and a second adhesive pulling rod 330. The first adhesive pulling rod 320 and the second adhesive pulling rod 330 are slidably mounted on the adhesive pulling guide rail 310, and the second adhesive pulling rod 330 can slide to abut against the second adhesive pulling rod 330.

[0051] Both the first and second adhesive-pulling rods 320 and 330 are generally cylindrical with smooth, curved surfaces to prevent damage to the protective adhesive tape 30. The first and second adhesive-pulling rods 320 and 330 can move towards each other and clamp the protective adhesive tape 30 under the drive of a driving component (not shown). Then, the driving component drives the first and second adhesive-pulling rods 320 and 330 to slide together along the adhesive-pulling guide rail 310 away from the unwinding mechanism 200. Figure 1 (As shown in the diagram, to the left), you can pull out the required length of protective rubber strip 30.

[0052] It should be noted that in other embodiments, the adhesive pulling mechanism 300 may also adopt other structures. For example, the adhesive pulling mechanism 300 includes a gripper and a robotic arm, the gripper being able to clamp the end of the protective adhesive strip 30 and move it under the drive of the robotic arm to pull the adhesive.

[0053] Furthermore, in this embodiment, the adhesive pulling mechanism 300 also includes a first telescopic drive member 340 and a second telescopic drive member 350, and the first adhesive pulling rod 320 and the second adhesive pulling rod 330 are respectively mounted on the adhesive pulling guide rail 310 through the first telescopic drive member 340 and the second telescopic drive member 350.

[0054] The first telescopic drive member 340 and the second telescopic drive member 350 can be cylinders, both of which can be mounted on the glue-pulling guide rail 310 via sliders (not shown in the figure). The first glue-pulling rod 320 and the second glue-pulling rod 330 are respectively mounted on the drive ends of the first telescopic drive member 340 and the second telescopic drive member 350. The first telescopic drive member 340 and the second telescopic drive member 350 can drive the first glue-pulling rod 320 and the second glue-pulling rod 330 to extend and retract respectively, thereby facilitating the glue-pulling mechanism 300 to obtain the end of the protective adhesive strip 30 before glue pulling, thus ensuring smooth glue pulling.

[0055] Furthermore, in this embodiment, the first adhesive-pulling rod 320 is located on the side of the second adhesive-pulling rod 330 facing the unwinding mechanism 200, the surface of the first adhesive-pulling rod 320 is formed with a third adsorption hole 321, and the first adhesive-pulling rod 320 is capable of rotating around its own axis.

[0056] The first adhesive-pulling rod 320 also has an air passage (not shown) connecting to the third adsorption hole 321, and the air passage can communicate with the negative pressure device. Thus, a negative pressure can be formed on the surface of the first adhesive-pulling rod 320, allowing it to adsorb the protective adhesive strip 30 onto its surface when it approaches, making it easier to obtain the end of the protective adhesive strip 30. After the first adhesive-pulling rod 320 adsorbs the head of the protective adhesive strip 30, it rotates at a predetermined angle to form a larger wrap angle on the first adhesive-pulling rod 320; then, the second adhesive-pulling rod 330 moves towards the first adhesive-pulling rod 320 to clamp the protective adhesive strip 30, thereby significantly reducing damage to the protective adhesive strip 30.

[0057] Please refer to it again. Figure 1 See also Figure 6 In this embodiment, the tape feeding mechanism A further includes a clamping mechanism 600, which is disposed between the cutting mechanism 400 and the unwinding mechanism 200. The protective tape 30 pulled by the tape pulling mechanism 130 passes through the clamping mechanism 600, which can clamp or release the protective tape.

[0058] The protective adhesive tape 30 unwound by the unwinding mechanism 200 first passes through the clamping mechanism 600, then is pulled by the adhesive pulling mechanism 300 and passes through the cutting mechanism 400. Before the cutting mechanism 400 cuts the protective adhesive tape 30, the clamping mechanism 600 clamps the protective adhesive tape 30. Therefore, after the protective adhesive tape 30 is cut, its new end will be clamped and fixed by the clamping mechanism 600. In this way, when performing the next adhesive application operation, the adhesive pulling mechanism 300 can obtain the end of the protective adhesive tape 30 from the clamping mechanism 600. Because the end of the protective adhesive tape 30 is well fixed, it is more convenient for the adhesive pulling mechanism 300 to obtain the end of the protective adhesive tape 30.

[0059] Furthermore, in this embodiment, the clamping mechanism 600 includes an opening / closing drive member 610, an upper clamping jaw 620, and a lower clamping jaw 630. Both the upper clamping jaw 620 and the lower clamping jaw 630 are connected to the opening / closing drive member 610 and can move closer or further apart under the drive of the opening / closing drive member 610. The opening / closing drive member 610 can be a clamping jaw cylinder. When the upper clamping jaw 620 and the lower clamping jaw 630 move further apart, the protective adhesive tape 30 can pass between the upper clamping jaw 620 and the lower clamping jaw 630, and the adhesive pulling mechanism 300 can smoothly pull the protective adhesive tape 30. When the upper clamping jaw 620 and the lower clamping jaw 630 move closer together, the protective adhesive tape 30 can be clamped.

[0060] Please refer to it again. Figure 1 See also Figure 7In this embodiment, the tape feeding mechanism A further includes a buffer mechanism 700, which is disposed between the cutting mechanism 400 and the unwinding mechanism 200. More specifically, the buffer mechanism 700 is disposed between the clamping mechanism 600 and the unwinding mechanism 200. The protective tape 30 unwound by the unwinding mechanism 200 first passes through the buffer mechanism 700, then through the clamping mechanism 600, and is then pulled by the tape pulling mechanism 300 and passes through the cutting mechanism 400.

[0061] The buffer mechanism 700 can buffer or release the protective rubber tape 30, thereby preventing the protective rubber tape 30 from becoming loose or overly taut, maintaining the tension of the protective rubber tape 30, and ensuring the smooth operation of unwinding, cutting and other operations on the protective rubber tape 30.

[0062] Furthermore, in this embodiment, the buffer mechanism 700 includes a support 710, a buffer roller 720, and an elastic member 730. The buffer roller 720 is slidably mounted on the support 710, and the two ends of the elastic member 730 are respectively connected to the support 710 and the buffer roller 720.

[0063] The unwound protective rubber strip 30 first passes around the buffer roller 720. The buffer roller 720, by sliding along the support 710, adjusts the length of the protective rubber strip 30 between the cutting mechanism 400 and the unwinding mechanism 200, thereby buffering or releasing the protective rubber strip 30. The elastic element 730 applies an elastic force to the buffer roller 720, which then tensions the protective rubber strip 30 under this elastic force. The magnitude of the elastic force provided by the elastic element 730 is approximately equal to the tension of the protective rubber strip 30.

[0064] The elastic element 730 can be a spring, elastic rope, or other similar components. Specifically, in this embodiment, the elastic element 730 is a tension spring. When the protective rubber strip 30 passes around the buffer roller 720, the tension spring is stretched to generate an elastic force, thereby tensioning the protective rubber strip 30. When the protective rubber strip 30 becomes slack, resulting in a decrease in tension, the tension of the tension spring decreases accordingly, and the buffer roller 710 moves in one direction to buffer the protective rubber strip 30. Conversely, when the protective rubber strip 30 becomes overly taut, resulting in an increase in tension, the tension of the tension spring increases accordingly, and the buffer roller 710 moves in another direction to release the protective rubber strip 30.

[0065] More specifically, in this embodiment, the bracket 710 is provided with a support guide rail 740, and the buffer roller 720 is slidably mounted on the support guide rail 740 via a slider 750. Elastic elements 730 are provided on both sides of the slider 750, and the two ends of each elastic element 730 are connected to the bracket 710 and the slider 750 respectively. The elastic force provided by the elastic element 730 is transmitted from the slider 750 to the buffer roller 720, and then from the buffer roller 720 to the protective rubber strip 30. Because elastic elements 730 are provided on both sides of the slider 750, the buffer roller 720 experiences more balanced force.

[0066] Furthermore, in this embodiment, the buffer mechanism also includes an adjusting screw 760, which is screwed into the bracket 710 and connected to the end of the elastic member 730 away from the buffer roller 720.

[0067] By screwing in or out the adjusting screw 760, the preload of the elastic element 730 can be adjusted, thereby adjusting the magnitude of the elastic force provided by the elastic element 730. In this way, the tension of the protective rubber strip 30 can be adjusted according to actual processing requirements.

[0068] Please refer to it again. Figure 1 In this embodiment, the connecting mechanism 500 includes a connecting roller 510 and a connecting drive (not shown). The connecting roller 510 is connected to the connecting drive and can move between the tape feeding mechanism A and the adhesive applicator 100 under the drive of the connecting drive. Moreover, the connecting roller 510 can move to engage with one of the adhesive applicator rollers 110.

[0069] Specifically, the connecting drive unit can adopt a structure of cylinder or motor cooperating with a lead screw, and the connecting roller 510 is slidably mounted on the connecting guide rail 520. The connecting roller 510 and the adhesive roller 110 extend in the same direction, and the tape feeding mechanism A and the adhesive applicator 100 are generally spaced apart in a direction perpendicular to the adhesive roller 110. Figure 1 As shown in the example, both the adhesive roller 110 and the connecting roller 510 extend in the left and right direction, and the tape feeding mechanism A and the adhesive application mechanism 100 are arranged at intervals in the vertical direction; the connecting roller 510 can move in the vertical direction under the drive of the connecting drive component, thereby alternately approaching the tape feeding mechanism A and the adhesive application mechanism 100.

[0070] During the tape application operation, the connecting roller 510 first approaches the tape feeding mechanism A under the drive of the connecting drive, thereby receiving the tape. Then, the connecting roller 510 moves towards the tape application mechanism 100 under the drive of the connecting drive until it comes into contact with one of the tape application rollers 110. During contact, the surface of the connecting roller 510 abuts against the surface of the tape application roller 110, thereby transferring the tape from the connecting roller 510 to the tape application roller 110.

[0071] Specifically, in this embodiment, the direction in which the adhesive pulling mechanism 300 pulls the protective adhesive tape 30 is approximately the same as the extension direction of the connecting roller 510. Therefore, the tape cut by the cutting mechanism 400 will extend approximately along the connecting roller 510, thus facilitating the connecting roller 510 to receive the tape. Specifically, the extension direction of the adhesive pulling guide rail 310 is consistent with the extension direction of the connecting roller 510.

[0072] Furthermore, please refer to the following: Figure 5In this embodiment, a second adsorption hole 511 is formed on the surface of the connecting roller 510. The connecting roller 510 also has an air passage (not shown) communicating with the second adsorption hole 511, and this air passage can communicate with a negative pressure device. When the connecting roller 510 receives the tape, its air passage is opened, thus creating a negative pressure on the surface of the connecting roller 510, which quickly adsorbs the cut tape to prevent it from falling off. When transferring the tape to the adhesive roller 110, the air passage of the connecting roller 510 can be closed first, allowing the tape to separate smoothly from the connecting roller 510.

[0073] When the connecting roller 510 receives the tape, the adhesive side of the tape faces the surface of the connecting roller 510. This ensures that after the tape is transferred from the connecting roller 510 to the applying roller 110, the adhesive side of the tape faces away from the surface of the applying roller 110. To prevent the tape from sticking to the connecting roller 510 and causing transfer failure, the surface of the connecting roller 510 is generally treated with an anti-stick coating.

[0074] It should be noted that in other embodiments, the connecting mechanism 500 may also employ other methods to achieve tape transfer. For example, the connecting mechanism 500 may include a gripper and a robotic arm. The gripper can pick up the tape provided by the tape feeding mechanism A, and the robotic arm can drive the gripper to move between the tape feeding mechanism A and the adhesive applicator 100, thereby transferring the tape to the surface of the adhesive applicator roller 110. Alternatively, the connecting mechanism 500 may include a suction plate and a driving component. The suction plate can absorb the tape provided by the tape feeding mechanism A, and the driving component can drive the suction plate to move between the tape feeding mechanism A and the adhesive applicator 100, thereby transferring the tape to the surface of the adhesive applicator roller 110.

[0075] In the aforementioned electrode bonding device 10, the electrode 20 to be bonded can pass between two bonding rollers 110 and be conveyed forward with the cooperation of the two bonding rollers 110. During the bonding operation, a tape of a preset length is first provided by the tape feeding mechanism A, and then the connecting mechanism 500 transfers the tape provided by the tape feeding mechanism A to the surface of one of the bonding rollers 110. As the bonding roller 110 rotates continuously, the tape on the surface of the bonding roller 110 adheres to the surface of the electrode 20 under the rolling pressure of the bonding roller 110. Therefore, the electrode 20 can be continuously conveyed during the bonding process of the electrode bonding device 10, without needing to stop conveying and wait for bonding, thus helping to improve production efficiency.

[0076] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0077] The embodiments described above are merely illustrative 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 all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An electrode adhesive bonding device, characterized in that, include: The adhesive application mechanism includes at least one adhesive application roller, and the electrode sheet to be adhesiveped can pass through the adhesive application mechanism and abut against the adhesive application roller; The tape feeding mechanism is capable of providing tape of a preset length; and A connecting mechanism is disposed between the adhesive applicator and the tape feeding mechanism, the connecting mechanism being able to transfer the tape provided by the tape feeding mechanism from the tape feeding mechanism to the surface of one of the adhesive applicator rollers.

2. The electrode bonding device according to claim 1, characterized in that, Each of the adhesive rollers has a first adsorption hole formed on its surface.

3. The electrode bonding device according to claim 1, characterized in that, The tape feeding mechanism includes an unwinding mechanism, a tape pulling mechanism, and a cutting mechanism; the unwinding mechanism can unwind the protective tape; the tape pulling mechanism can pull the protective tape; the cutting mechanism is located between the unwinding mechanism and the tape pulling mechanism, and can cut the protective tape to obtain a tape of a preset length.

4. The electrode bonding device according to claim 3, characterized in that, The adhesive pulling mechanism includes an adhesive pulling guide rail, a first adhesive pulling rod, and a second adhesive pulling rod. Both the first adhesive pulling rod and the second adhesive pulling rod are slidably mounted on the adhesive pulling guide rail, and the second adhesive pulling rod can slide to abut against the adhesive pulling rod.

5. The electrode bonding device according to claim 4, characterized in that, The adhesive pulling mechanism further includes a first telescopic drive component and a second telescopic drive component, wherein the first adhesive pulling rod and the second adhesive pulling rod are respectively mounted on the adhesive pulling guide rail via the first telescopic drive component and the second telescopic drive component.

6. The electrode bonding device according to claim 4, characterized in that, The first adhesive-pulling rod is located on the side of the second adhesive-pulling rod facing the unwinding mechanism. A third adsorption hole is formed on the surface of the first adhesive-pulling rod, and the first adhesive-pulling rod can rotate around its own axis.

7. The electrode bonding device according to claim 3, characterized in that, The tape feeding mechanism further includes a clamping mechanism disposed between the cutting mechanism and the unwinding mechanism. The protective tape pulled by the tape pulling mechanism passes through the clamping mechanism, and the clamping mechanism can clamp or release the protective tape.

8. The electrode bonding device according to claim 7, characterized in that, The clamping mechanism includes an opening and closing drive, an upper jaw, and a lower jaw. The upper jaw and the lower jaw are both connected to the opening and closing drive and can move closer or further apart from each other under the drive of the opening and closing drive.

9. The electrode bonding device according to claim 3, characterized in that, The tape feeding mechanism further includes a buffer mechanism disposed between the cutting mechanism and the unwinding mechanism. The protective tape unwound by the unwinding mechanism passes through the buffer mechanism, and the buffer mechanism can buffer or release the protective tape.

10. The electrode bonding device according to claim 9, characterized in that, The buffer mechanism includes a support, a buffer roller slidably mounted on the support, and an elastic element, with both ends of the elastic element connected to the support and the buffer roller, respectively.

11. The electrode bonding apparatus according to claim 10, characterized in that, The bracket is provided with a support guide rail, and the buffer roller is slidably mounted on the support guide rail via a slider. The slider has elastic elements on both sides, and the two ends of each elastic element are respectively connected to the bracket and the slider.

12. The electrode bonding apparatus according to claim 10, characterized in that, The buffer mechanism also includes an adjusting screw, which is screwed into the bracket and connected to the end of the elastic element away from the buffer roller.

13. The electrode bonding device according to claim 1, characterized in that, The connecting mechanism includes a connecting roller and a connecting drive component. The connecting roller is connected to the connecting drive component and can move between the tape feeding mechanism and the adhesive applicator under the drive of the connecting drive component. The connecting roller can also move to be in contact with one of the adhesive applicator rollers.

14. The electrode bonding apparatus according to claim 13, characterized in that, The surface of the connecting roller has a second adsorption hole.

15. The electrode bonding apparatus according to any one of claims 1 to 14, characterized in that, The adhesive applicator includes two adhesive applicator rollers arranged opposite each other, and the electrode sheet to be applied can pass between the two adhesive applicator rollers.

16. The electrode bonding apparatus according to claim 15, characterized in that, The tape feeding mechanism and the connecting mechanism are provided on opposite sides of the tape applicator, and the connecting mechanisms on both sides can transfer the tape from the tape feeding mechanism to the surfaces of the two tape applicator rollers respectively.

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