Pole piece gluing device

Abstract

The utility model relates to a kind of electrode piece rubberizing device, including rubberizing mechanism, unwinding mechanism, draw rubber mechanism, cutting mechanism and interface mechanism.Pole piece to be rubberized can pass between two rubberizing rollers, and under the cooperation of two rubberizing rollers, it is transported forward.When performing rubberizing operation, draw rubber mechanism first draws the protective rubber material tape unwound by unwinding mechanism to the required length, then the protective rubber material tape is cut off by cutting mechanism, so that the rubber tape of preset length is obtained.Interface roller is first driven by interface driving member to approach draw rubber mechanism, so as to receive the rubber tape obtained by cutting;Then, under the driving of interface driving member, it moves to be opposite to one of rubberizing roller, so that the rubber tape is transferred from interface roller to rubberizing roller.With the continuous rotation of rubberizing roller, the rubber tape on rubberizing roller can be rolled and pasted on the surface of pole piece.It can be seen that, in the process of rubberizing pole piece by the above-mentioned electrode piece rubberizing device, the pole piece can be kept conveying, so as to help improve production efficiency.

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 applicator includes an adhesive applicator, an unwinding mechanism, an adhesive pulling mechanism, a cutting mechanism, and a connecting mechanism. The adhesive applicator includes two adhesive applicator rollers arranged opposite each other. The cutting mechanism is located between the unwinding mechanism and the adhesive pulling mechanism. The connecting mechanism includes a connecting roller and a connecting drive, and the connecting roller is kinetically connected to the connecting drive. The connecting roller can move between the adhesive pulling mechanism and the adhesive applicator under the drive of the connecting drive, and can move to engage with one of the adhesive applicator rollers.

[0005] In one embodiment, each of the adhesive rollers has a first adsorption hole formed on its surface, and the connecting roller has a second adsorption hole formed on its surface.

[0006] 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 abut against the adhesive pulling rod.

[0007] 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.

[0008] 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.

[0009] In one embodiment, a clamping mechanism is provided between the cutting mechanism and the unwinding mechanism.

[0010] In one embodiment, the clamping mechanism includes an opening / closing drive, an upper jaw, and a lower jaw, and both the upper jaw and the lower jaw are connected to the opening / closing drive.

[0011] In one embodiment, a buffer mechanism is provided between the cutting mechanism and the unwinding mechanism.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] In one embodiment, the adhesive applicator is provided with the unwinding mechanism, the adhesive pulling mechanism, the cutting mechanism and the connecting mechanism on both sides, and the connecting rollers on both sides can respectively connect with the two adhesive applicator rollers under the drive of the corresponding connecting drive members.

[0016] In one embodiment, the unwinding mechanism is capable of unwinding the protective adhesive tape; the pulling mechanism is capable of pulling the protective adhesive tape; and the cutting mechanism is capable of cutting the protective adhesive tape to obtain a tape of a preset length.

[0017] In one embodiment, the connecting roller is capable of receiving the cut tape and transferring the tape to the applying roller when docking with the applying roller; as the applying roller rotates, the tape on the surface of the applying roller can be bonded to the electrode sheet passing between the two applying rollers under the roller pressure of the applying roller.

[0018] In the aforementioned electrode coating device, the electrode to be coated passes between two coating rollers and is conveyed forward in cooperation with the two rollers. During the coating operation, the pulling mechanism first pulls the protective adhesive tape unwound by the unwinding mechanism to the required length, and then the cutting mechanism cuts the protective adhesive tape to obtain a tape of the preset length. The connecting roller, driven by the connecting drive, first approaches the pulling mechanism to receive the cut tape; then, driven by the connecting drive, it moves to engage with one of the coating rollers, thereby transferring the tape from the connecting roller to the coating roller. As the coating roller rotates continuously, the tape on the coating roller is rolled onto the surface of the electrode. Therefore, the electrode can be continuously conveyed during the coating process, which helps to improve production efficiency. Attached Figure Description

[0019] 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.

[0020] Figure 1 This is a schematic diagram of the electrode adhesive application device in one embodiment of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of the adhesive roller in the electrode adhesive application device shown;

[0022] Figure 3 for Figure 1 A schematic diagram of the adhesive application mechanism in the electrode bonding device shown;

[0023] 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.

[0024] Figure 5 for Figure 1 A schematic diagram of the connecting roller structure in the electrode adhesive application device shown;

[0025] Figure 6 for Figure 1 A schematic diagram of the clamping mechanism in the electrode bonding device shown;

[0026] Figure 7 for Figure 1 The diagram shows the structure of the buffer mechanism in the electrode bonding device. Detailed Implementation

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] Please see Figure 1 In one embodiment of this utility model, the electrode adhesive applicator 10 includes an adhesive applicator 100, an unwinding mechanism 200, an adhesive pulling mechanism 300, a cutting mechanism 400, and a connecting mechanism 500.

[0034] The adhesive application mechanism 100 is capable of applying adhesive tape of a preset length to the surface of the electrode 20 to be adhesiveped. The adhesive application mechanism 100 includes two opposing adhesive application rollers 110. The two adhesive application rollers 110 are parallel to each other, and a gap is formed between them for the electrode 20 to pass through. The two adhesive application rollers 110 can rotate under the drive of a driving component, such as a motor, thereby driving the electrode 20 forward. Alternatively, the two adhesive application rollers 110 may not be connected to a driving component, but may instead rotate passively under the influence of the electrode 20.

[0035] 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; the tape pulling mechanism 300 clamps the end of the unwound protective adhesive tape 30 from the unwinding mechanism 200 and pulls out the required length of tape. A cutting mechanism 400 is positioned between the unwinding mechanism 200 and the tape pulling mechanism 300. Furthermore, the cutting mechanism 400 cuts the protective adhesive tape 30 between the unwinding mechanism 200 and the tape pulling mechanism 300, thereby obtaining 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. Alternatively, the cutting mechanism 400 can also use other methods such as laser cutting to cut the protective adhesive tape 30. Specifically, the protective adhesive tape 30 has a smooth surface and an adhesive surface, with the adhesive surface being tacky.

[0036] The connecting mechanism 500 includes a connecting roller 510 and a connecting drive (not shown), with the connecting roller 510 and the connecting drive being connected in a driving relationship. The connecting roller 510 can move between the adhesive application mechanism 300 and the conveying mechanism under the drive of the connecting drive, and can move to engage with one of the adhesive application rollers 110. Specifically, the connecting drive can be a structure using a cylinder or a motor coupled with a lead screw, and the connecting roller 510 is slidably mounted on the connecting guide rail 520.

[0037] The connecting roller 510 and the adhesive applicator roller 110 extend in the same direction, and the adhesive pulling mechanism 300 and the adhesive applicator mechanism 100 are generally spaced apart in a direction perpendicular to the adhesive applicator 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 adhesive pulling mechanism 300 and the adhesive applying 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 adhesive pulling mechanism 300 and the adhesive applying mechanism 100.

[0038] During the adhesive application operation, the connecting roller 510, driven by the connecting drive, first approaches the adhesive pulling mechanism 300 to receive the cut adhesive tape. 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, so the cut adhesive tape will extend approximately along the connecting roller 510, facilitating the receiving of the tape by the connecting roller 510. Next, the connecting roller 510, driven by the connecting drive, moves to align with one of the adhesive application rollers 110. During alignment, the surface of the connecting roller 510 abuts against the surface of the adhesive application roller 110, thereby transferring the tape from the connecting roller 510 to the adhesive application roller 110. As the adhesive application roller 110 rotates continuously, the tape on the adhesive application roller 110 can be adhered to the electrode 20 passing between the two adhesive application rollers 110 under the roller pressure of the adhesive application roller 110, while the electrode 20 can be kept in the conveying state. That is, the electrode 20 does not need to stop conveying and wait for adhesive application during the adhesive application process, which helps to improve production efficiency.

[0039] 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 roller 510 transferring the tape to the adhesive roller 110, the pressure applied by the connecting roller 510 acts on the adhesive roller 110 and does not significantly affect the tension of the electrode 20. After the tape transfer is complete, the connecting roller 510 will move away from the adhesive application mechanism 100 under the drive of the connecting drive component, and then the adhesive roller 110 will roll the tape onto the surface of the electrode 20. Thus, compared to directly rolling the tape onto the electrode 20 by the connecting roller 510, rolling the tape with the adhesive roller 110 significantly reduces tension fluctuations of the electrode 20 during the adhesive application process, thereby also helping to improve the quality of the adhesive application.

[0040] When the connecting roller 510 receives the tape, the adhesive side of the tape faces the surface of the connecting roller 510. However, when the tape is transferred to the applying roller 110, the adhesive side of the tape faces away from the surface of the applying roller 110. Therefore, during the rolling process, the adhesive side of the tape faces the electrode 20, thus ensuring reliable bonding between the tape and the electrode 20. To prevent adhesion, the surfaces of the connecting roller 510 and the applying roller 110 are generally treated with anti-stick coating.

[0041] Please refer to the following: Figure 2 and Figure 5 Specifically, in this embodiment, each adhesive roller 110 has a first adsorption hole 111 formed on its surface, and the connecting roller 510 has a second adsorption hole 511 formed on its surface. The adhesive roller 110 and the connecting roller 510 are also provided with air passages (not shown) that respectively connect the first adsorption hole 111 and the second adsorption hole 511, and both air passages can be connected to a negative pressure device.

[0042] When the connecting roller 510 receives the tape, its air passage is open, thus creating a negative pressure on the surface of the connecting roller 510. This allows for rapid adsorption of the cut tape, preventing it from falling off. When transferring the tape to the applicator roller 110, the air passage of the connecting roller 510 can be closed first, while the air passage of the applicator roller 110 can be opened. As a result, the tape detaches from the connecting roller 510 and is adsorbed by the applicator roller 110, thus successfully transferring the tape.

[0043] 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, the adhesive application mechanism 100 is provided with an unwinding mechanism 200, an adhesive pulling mechanism 300, a cutting mechanism 400 and a connecting mechanism 500 on opposite sides, and the connecting rollers 510 on both sides can be connected to the two adhesive application rollers 110 respectively under the drive of the corresponding connecting drive components.

[0044] Two sets of unwinding mechanism 200, adhesive application mechanism 300, cutting mechanism 400, and connecting mechanism 500 are provided, generally symmetrically distributed. The two sets of unwinding mechanism 200, adhesive application mechanism 300, cutting mechanism 400, and connecting mechanism 500 have the same function: to provide adhesive tape of a preset length and transfer it to two adhesive application rollers 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.

[0045] Please refer to the following: Figure 3 and Figure 4 In 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 abut against each other.

[0046] 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 to the left), the required length of protective adhesive tape 30 can be pulled out. Specifically, the extension direction of the adhesive pulling guide rail 310 is consistent with the extension direction of the connecting roller 510, so the extension direction of the pulled protective adhesive tape 30 will also be consistent with the extension direction of the connecting roller 510, thus facilitating the connecting roller 510 to receive the tape obtained from the final cut.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] Please refer to it again. Figure 1 See also Figure 6 In this embodiment, the electrode adhesive applicator 10 further includes a clamping mechanism 600, which is disposed between the cutting mechanism 400 and the unwinding mechanism 200.

[0053] 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.

[0054] 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 of which are connected to the opening / closing drive member 610. The opening / closing drive member 610 can be a clamping jaw cylinder, capable of driving the upper clamping jaw 620 and the lower clamping jaw 630 to move closer or further apart. 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.

[0055] Please refer to it again. Figure 1 See also Figure 7 In this embodiment, the electrode bonding device 10 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 adhesive 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 adhesive pulling mechanism 300 and passes through the cutting mechanism 400.

[0056] 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.

[0057] Furthermore, in this embodiment, the buffer mechanism 700 includes a bracket 710, a buffer roller 720, and an elastic member 730. The buffer roller 720 is slidably mounted on the bracket 710, and the two ends of the elastic member 730 are respectively connected to the bracket 710 and the buffer roller 720.

[0058] 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.

[0059] 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.

[0060] 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.

[0061] 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.

[0062] 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.

[0063] In the aforementioned electrode applicator 10, the electrode 30 to be applicated can pass between two applicator rollers 110 and be conveyed forward with the cooperation of the two applicator rollers 110. During the applicating operation, the pulling mechanism 300 first pulls the protective adhesive tape 30 unwound by the unwinding mechanism 200 to the required length, and then the cutting mechanism 400 cuts the protective adhesive tape to obtain a tape of the preset length. The connecting roller 510 first approaches the pulling mechanism 300 under the drive of the connecting drive component to receive the cut tape; then, under the drive of the connecting drive component, it moves to engage with one of the applicator rollers 110, thereby transferring the tape from the connecting roller 510 to the applicator roller 110. As the applicator roller 110 rotates continuously, the tape on the applicator roller 110 can be rolled onto the surface of the electrode 20. Therefore, during the applicator application process of the electrode 20 by the aforementioned electrode applicator 10, the electrode 20 can be continuously conveyed, thus helping to improve production efficiency.

[0064] 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.

[0065] 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, The device includes an adhesive application mechanism, an unwinding mechanism, an adhesive pulling mechanism, a cutting mechanism, and a joining mechanism. The adhesive application mechanism includes two adhesive application rollers arranged opposite each other. The cutting mechanism is located between the unwinding mechanism and the adhesive pulling mechanism. The joining mechanism includes a joining roller and a joining drive, and the joining roller is kinetically connected to the joining drive. The joining roller can move between the adhesive pulling mechanism and the adhesive application mechanism under the drive of the joining drive, and can move to engage with one of the adhesive application 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, and the connecting roller has a second adsorption hole formed on its surface.

3. The electrode bonding device according to claim 1, 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 abut against the first adhesive pulling rod.

4. The electrode bonding device according to claim 3, 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.

5. The electrode bonding device according to claim 3, 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.

6. The electrode bonding device according to claim 1, characterized in that, A clamping mechanism is provided between the cutting mechanism and the unwinding mechanism.

7. The electrode bonding device according to claim 6, characterized in that, The clamping mechanism includes an opening and closing drive, an upper clamp, and a lower clamp, and both the upper clamp and the lower clamp are connected to the opening and closing drive.

8. The electrode bonding device according to claim 1, characterized in that, A buffer mechanism is provided between the cutting mechanism and the unwinding mechanism.

9. The electrode bonding device according to claim 8, 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.

10. The electrode bonding device according to claim 9, 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.

11. The electrode bonding device according to claim 9, 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.

12. The electrode bonding device according to claim 1, characterized in that, The adhesive applicator is provided with an unwinding mechanism, an adhesive pulling mechanism, a cutting mechanism and a connecting mechanism on both sides, and the connecting rollers on both sides can respectively connect with the two adhesive applicator rollers under the drive of the corresponding connecting drive components.

13. The electrode bonding apparatus according to any one of claims 1 to 12, characterized in that, The unwinding mechanism can unwind the protective adhesive tape; the pulling mechanism can pull the protective adhesive tape; and the cutting mechanism can cut the protective adhesive tape to obtain a tape of a preset length.

14. The electrode bonding device according to claim 13, characterized in that, The connecting roller can receive the cut tape and transfer the tape to the applying roller when it is connected to the applying roller; as the applying roller rotates, the tape on the surface of the applying roller can be bonded to the electrode sheet passing between the two applying rollers under the roller pressure of the applying roller.

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