Adhesive-tape affixing device, winding apparatus and adhesive-tape affixing method

Abstract

An adhesive-tape affixing device, comprising: two first adhesive-tape affixing assemblies (10), which are spaced apart in a first direction (X1), an electrode sheet material strip (A) passing through a space between the two first adhesive-tape affixing assemblies (10), each first adhesive-tape affixing assembly (10) having a suction end configured to suction a first adhesive tape (B), and the suction ends of the two first adhesive-tape affixing assemblies (10) controllably moving close to each other in the first direction (X1), so as to clamp the passing electrode sheet material strip (A) and respectively affix the first adhesive tapes (B) onto the passing electrode sheet material strip (A); a clamping assembly (20), which is arranged on one side of the two first adhesive-tape affixing assemblies (10) in a second direction (X2) and is configured to clamp the passing electrode sheet material strip (A), the second direction (X2) intersecting the first direction (X1); a cutting assembly (30), which is configured to cut off the electrode sheet material strip (A) between the two first adhesive-tape affixing assemblies (10) and the clamping assembly (20); and a second adhesive-tape affixing assembly (40), which is configured to affix second adhesive tapes (C) onto two cut ends (a) formed by means of cutting off the electrode sheet material strip (A). Further provided are a winding apparatus and an adhesive-tape affixing method.

Description

Glue applying device, winding equipment and glue applying method

[0001] This disclosure claims priority to the Chinese patent application filed with the Patent Office of China on February 6, 2024, with application number 202410171126.9 and application name “A Glue Laminating Device, Winding Equipment and Glue Laminating Method”, and application number 202420285262.6 and application name “A Glue Laminating Device and Winding Equipment”, all contents of which are incorporated by reference into this disclosure. Technical Field

[0002] The present disclosure relates to the technical field of battery manufacturing, and in particular to a gluing device, a winding device, and a gluing method. Background Art

[0003] The battery cell is one of the core components of the battery. Winding machines are often used to wind the electrode sheets and separators into shape. To improve the safety of the battery cell, a first tape and a second tape are attached to the electrode sheets before winding. The first tape is used to protect the corners of the electrode sheet material in the innermost circle of the battery cell, and the second tape is used to protect the ends of the electrode sheet material in the innermost circle and the ends of the electrode sheet material in the outermost circle of the battery cell.

[0004] The distance between the first and second tape locations on the electrode strip is determined by factors such as the cell's roll diameter. If the distance between the first and second tape locations is small, the installation space is limited, making it difficult to spatially arrange the various components of the adhesive application system. Summary of the Invention

[0005] Based on this, it is necessary to provide a gluing device, winding equipment and gluing method to improve the above defects, in order to address the problem that the gluing device in the related technology cannot adapt to the situation where the distance between the position where the first tape is pasted and the position where the second tape is pasted on the pole piece strip is small, resulting in a small installation space and difficulty in the spatial layout of the various components of the gluing device.

[0006] A glue applying device, comprising:

[0007] Two first adhesive components are arranged at intervals along a first direction, and a pole piece strip passes between the two first adhesive components. Each first adhesive component has an adsorption end for adsorbing the first adhesive tape. The adsorption ends of the two first adhesive components can be controlled to approach each other along the first direction so as to respectively adhere the first adhesive tape to the pole piece strip passing through and can clamp the pole piece strip passing through.

[0008] A clamping assembly is arranged on one side of the two first adhesive laminating assemblies in the second direction, and is used to clamp the pole piece strip passing through, wherein the second direction intersects with the first direction;

[0009] a cutting assembly, used for cutting the pole piece strip between the two first adhesive laminating assemblies and the clamping assembly; and

[0010] The second adhesive tape assembly is used to stick the second adhesive tape to the two cut ends formed by cutting the electrode strip.

[0011] In one embodiment, the two first adhesive components can be controlled to move along the second direction.

[0012] In one embodiment, a first supporting plate is connected to the adsorption end of each first adhesive component, and the first supporting plate extends from the adsorption end of the first adhesive component toward the cutting component along the second direction.

[0013] In one embodiment, the first direction is the up-down direction, the length dimension of the first support plate located below the pole piece strip in the second direction is the first length dimension, and the length dimension of the first support plate located above the pole piece strip in the second direction is the second length dimension;

[0014] The first length dimension is greater than the second length dimension.

[0015] In one embodiment, the clamping assembly includes a mounting seat and two clamping blocks spaced apart along the first direction on the mounting seat, and the two clamping blocks can be controlled to move closer to or farther from each other to clamp or release the pole piece strip passing through;

[0016] A second supporting plate is connected to each of the clamping blocks, and the second supporting plate extends from the clamping block toward the cutting assembly along the second direction.

[0017] In one embodiment, the first direction is the up-down direction, the length dimension of the second support plate located below the pole piece strip in the second direction is the third length dimension, and the length dimension of the second support plate located above the pole piece strip in the second direction is the fourth length dimension;

[0018] The third length dimension is greater than the fourth length dimension.

[0019] In one embodiment, the second adhesive component has an adsorption end movable along the first direction, and the adsorption end of the second adhesive component is used to adsorb or release the second adhesive tape;

[0020] The glue applying device further includes a first glue preparation component, and the second glue applying component can be controlled to move along the second direction to the glue preparation position so that the adsorption end of the second glue applying component is opposite to the second adhesive tape provided by the first glue preparation component in the first direction.

[0021] In one embodiment, the cutting assembly is movable along the second direction and is connected to the second gluing assembly so that the cutting assembly moves along the second direction along with the second gluing assembly.

[0022] In one embodiment, the gluing device further includes two third gluing components arranged on a side of the two first gluing components away from the clamping component, and the electrode strip is passed through between the two third gluing components;

[0023] Each of the third adhesive components has an adsorption end for adsorbing the first adhesive tape. The adsorption ends of the two third adhesive components can be controlled to approach each other along the first direction to respectively adhere the first adhesive tape to the pole piece material tape passing by.

[0024] In one embodiment, the gluing device further includes two first moving seats, the two first gluing assemblies are respectively arranged on the two first moving seats, the two third gluing assemblies are respectively arranged on the two first moving seats, and the two first moving seats are fixedly connected by a connecting frame;

[0025] The glue applying device further includes a driving unit, wherein a driving end of the driving unit is connected to one of the first moving seats to drive the first moving seat to move along the second direction.

[0026] A winding arrangement comprises a gluing device as described in any of the above embodiments.

[0027] A method for applying glue, using the glue applying device described in any of the above embodiments, the method for applying glue comprising the following steps:

[0028] a. The adsorption ends of the two first adhesive components approach each other along the first direction until the electrode strip passing through is clamped, so that the first adhesive tapes adsorbed on the adsorption ends of the two first adhesive components are respectively adhered to the two sides of the electrode strip; the clamping component clamps the electrode strip passing through;

[0029] b. The cutting assembly cuts the electrode strip between the two first gluing assemblies and the clamping assembly;

[0030] c. The second adhesive tape is attached to the two cut ends of the electrode strip by the second adhesive tape assembly;

[0031] d. The adsorption ends of the two first adhesive components move away from each other along the first direction; and the clamping component releases the electrode material strip that it passes through.

[0032] In one embodiment, between step b and step c, the following steps are further included:

[0033] The two first adhesive components move away from the clamping component along the second direction by a preset distance.

[0034] The above-mentioned gluing device, winding equipment and gluing method, the gluing device disclosed in the present invention utilizes the adsorption ends of the two first gluing components to adhere the first tape to the two sides of the pole piece material strip while clamping the pole piece material strip, and then utilizes the clamping component to clamp the pole piece material strip, thereby facilitating the cutting component to cut the pole piece material strip from the position between the two first gluing components and the clamping component. That is to say, the two first gluing components, on the one hand, realize the adhesion of the first tape to the two sides of the pole piece material strip, and on the other hand, realize the clamping of the pole piece material strip, so that the cutting component can cut the pole piece material strip. Therefore, there is no need to additionally set a clamping component for clamping the pole piece material strip between the two first gluing components and the cutting component, and there is no need to occupy the space between the position where the first tape is adhered and the position where the second tape is adhered, thereby overcoming the problem of greater difficulty in spatial layout due to the small distance between the position where the first tape is adhered and the position where the second tape is adhered on the pole piece material strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a schematic diagram of the structure of a pole piece strip attached to a first tape and a second tape in one embodiment of the present disclosure;

[0036] FIG2 is a schematic diagram of the structure of a battery cell formed by winding the electrode strip shown in FIG1 ;

[0037] FIG3 is a schematic structural diagram of a glue application device according to an embodiment of the present disclosure;

[0038] FIG4 is a schematic structural diagram of the first adsorption blocks and the first support plate of the two first glue-applying assemblies of the glue-applying device shown in FIG3 ;

[0039] FIG5 is a schematic structural diagram of a first glue applying component of the glue applying device shown in FIG3 ;

[0040] FIG6 is a schematic structural diagram of the first and third gluing components of the gluing device shown in FIG3 ;

[0041] FIG7 is a schematic structural diagram of a driving unit of the adhesive laminating device shown in FIG3 ;

[0042] FIG8 is a schematic structural diagram of a third glue applying assembly of the glue applying device shown in FIG3 ;

[0043] FIG9 is a schematic structural diagram of the first glue applying component, the second glue applying component and the third glue applying component of the glue applying device shown in FIG3 ;

[0044] FIG10 is a flowchart of the steps of the adhesive laminating method in one embodiment of the present disclosure. DETAILED DESCRIPTION

[0045] To make the above-mentioned objects, features, and advantages of the present disclosure more clearly understood, specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without violating the scope of the present disclosure. Therefore, the present disclosure is not limited to the specific embodiments disclosed below.

[0046] In the description of the present disclosure, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present disclosure.

[0047] 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 technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. Throughout the present disclosure, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0048] In this disclosure, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise expressly limited. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0049] In the present disclosure, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate 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 implementation methods.

[0051] One embodiment of the present disclosure provides a winding apparatus comprising a gluing device and a winding device. As shown in Figures 1 and 2 , the gluing device is used to apply a first adhesive tape B to a passing electrode strip A. The gluing device is also used to cut the passing electrode strip A and apply a second adhesive tape C to the two cut ends a formed by cutting the electrode strip A to prevent burrs from being exposed on the cut ends a.

[0052] The electrode strip A, with the first adhesive tape B and the second adhesive tape C attached, enters the winding device, which winds the electrode strip A to form a battery cell 100. The electrode strip A is then cut between its two cut ends a (at this point, the two cut ends a of the electrode strip A are still wrapped by the second adhesive tape C), separating the battery cell 100 from the upstream electrode strip A. This battery cell 100 is flattened in subsequent processes. The above-mentioned first tape B is located at the corner F of the electrode material strip A of the innermost circle of the battery cell 100, so that the first tape B is used to protect the corner F of the electrode material strip A of the innermost circle of the battery cell 100, avoiding wrinkles or cracks in the electrode material strip A at the corner F; and the cut ends a of the electrode material strips A of the innermost and outermost circles of the battery cell 100 are both wrapped by the second tape C, so as to avoid the burrs of the cut ends a from being exposed, thereby greatly improving the safety of the battery cell 100.

[0053] It is understood that, referring to Figure 2 , the winding device winds four layers of tape, including a layer of separator D, the aforementioned electrode tape A, another layer of separator D, and the electrode E, to form the battery cell 100. Of course, in other embodiments, the battery cell 100 may also include other tapes, which are not limited here.

[0054] Please refer to Figures 3 to 5. In the embodiment of the present disclosure, the gluing device includes two first gluing components 10, a clamping component 20, a cutting component 30 and a second gluing component 40. The two first gluing components 10 are arranged at intervals along the first direction X1, and the pole piece strip A is transported along the second direction X2 intersecting the first direction X1. The pole piece strip A passes between the two first gluing components 10. Each first gluing component 10 has an adsorption end for adsorbing the first adhesive tape B. The adsorption ends of the two first gluing components 10 can be controlled to approach each other along the first direction X1, and can clamp the pole piece strip A passing by, and respectively adhere the first adhesive tape B to the two sides of the pole piece strip A. The clamping component 20 is arranged on one side of the two first gluing components 10 in the second direction X2, and is used to clamp the pole piece strip A passing by. The cutting component 30 is used to cut the pole piece strip A between the two first gluing components 10 and the clamping component 20. The second adhesive component 40 is used to stick the second adhesive tape C to the two cut ends a formed by cutting the electrode strip A, so that the two cut ends a formed by cutting the electrode strip A are both wrapped by the second adhesive tape C.

[0055] When the above-mentioned gluing device is actually used, first, the adsorption ends of the two first gluing components 10 are controlled to approach each other along the first direction X1, until the adsorption ends of the two first gluing components 10 stick the first tapes B adsorbed by them to the two side surfaces of the pole piece material strip A and clamp the pole piece material strip A. At the same time, the clamping component 20 also clamps the pole piece material strip A passing by. Then, the cutting component 30 cuts the pole piece material strip A at the position between the two first gluing components 10 and the clamping component 20. Then, the second gluing component 40 sticks the second tape C to the two cut ends a formed by the pole piece material strip A being cut by the cutting component 30, so that the two cut ends a are reconnected through the second tape C. Finally, the adsorption ends of the two first gluing components 10 stop adsorbing their respective first tapes B and move away from each other along the first direction X1, thereby loosening the pole piece material strip A and the two layers of first tape B. At the same time, the clamping assembly 20 also releases the electrode strip A, allowing it to continue to be transported downstream into the winding device. The winding device winds the electrode strip A, attached with the second adhesive tape C and the first adhesive tape B, to form the battery cell 100, and then cuts the electrode strip A between the two cut ends a, separating the battery cell 100 from the upstream electrode strip A. At this point, the cut ends a of the electrode strip A of the innermost and outermost circles of the battery cell 100 are still wrapped by the second adhesive tape C, and the first adhesive tape B is attached to the corner F of the electrode strip A of the innermost circle of the battery cell 100, thereby greatly improving the safety of the battery cell 100.

[0056] In this way, the glue-applying device disclosed herein utilizes the adsorption ends of the two first glue-applying components 10 to adhere the first adhesive tape B to the two side surfaces of the pole piece strip A while clamping the pole piece strip A, and then utilizes the clamping component 20 to clamp the pole piece strip A, thereby facilitating the cutting component 30 to cut the pole piece strip A from the position between the two first glue-applying components 10 and the clamping component 20. In other words, the two first glue-applying components 10, on the one hand, achieve the purpose of adhering the first adhesive tape B to the two side surfaces of the pole piece strip A, and on the other hand, achieve the purpose of clamping the pole piece strip A, so as to facilitate the cutting component 30 to cut the pole piece strip A. Therefore, there is no need to additionally set a clamping component for clamping the pole piece strip A between the two first glue-applying components 10 and the cutting component 30, and there is no need to occupy the space between the position where the first adhesive tape B is applied and the position where the second adhesive tape C is applied, thereby overcoming the problem of greater difficulty in spatial layout caused by the small distance between the position where the first adhesive tape B is applied and the position where the second adhesive tape C is applied on the pole piece strip A.

[0057] Specifically in the embodiment, the gluing device also includes a mounting plate 80, and the two first gluing components 10, the second gluing component 40, the clamping component 20 and the cutting component 30 are all arranged on the mounting plate 80, thereby realizing the integrated installation of various components, which is conducive to improving space utilization.

[0058] Specifically in the embodiment, the two first adhesive components 10 can be controlled to move relative to the mounting plate 80 along the second direction X2 to approach or move away from the clamping component 20. In this way, after the cutting component 30 cuts the pole piece strip A from the position between the two first adhesive components 10 and the clamping component 20, the two first adhesive components 10 are controlled to move a certain distance away from the clamping component 20 along the second direction X2, so that the two cut ends a of the pole piece strip A are separated from each other by a certain distance. Then, the second adhesive component 40 sticks the second tape C to the two cut ends a of the pole piece strip A. When the second tape C between the two cut ends a of the pole piece strip A is cut after the battery cell 100 is wound, since the two cut ends a of the pole piece strip A are separated by a certain distance from each other, it can be ensured that the two cut ends a are still wrapped by the second tape C.

[0059] Please refer to Figures 6 and 7 . Furthermore, the gluing device further includes two first moving seats 90, both movably connected to the mounting plate 80 along the second direction X2. The two first moving seats 90 are respectively located on either side of the pole piece strip A in the first direction X1. The two first gluing assemblies 10 are respectively mounted on the two first moving seats 90, so that the two first gluing assemblies 10 can be moved along the second direction X2 by controlling the two first moving seats 90 to move along the second direction X2.

[0060] Furthermore, the gluing device also includes a drive unit 91 mounted on the mounting plate 80. The drive unit 91 is connected to one of the first moving seats 90 to drive the first moving seat 90 to move relative to the mounting plate 80 in the second direction X2. The two first moving seats 90 are fixedly connected by a connecting frame 92. Therefore, when the drive unit 91 drives one of the first moving seats 90 to move in the second direction X2, the first moving seat 90 drives the other first moving seat 90 to move in the second direction X2 via the connecting frame 92. As a result, the two first moving seats 90 respectively drive the two first gluing assemblies 10 to move synchronously in the second direction X2. In this way, using a single drive unit 91 to achieve the movement of the two first gluing assemblies 10 in the second direction X2 helps simplify the structure and reduce equipment costs.

[0061] Of course, in other embodiments, the two first moving seats 90 may be driven to move along the second direction X2 by two driving units 91 respectively, which is not limited here.

[0062] Furthermore, the mounting plate 80 has a front face, a back face opposite to the front face, and two strip-shaped avoidance grooves 81 extending through the front face and the back face. Two first moving seats 90 are both arranged on the front face of the mounting plate 80 and correspond to the two strip-shaped avoidance grooves 81. A driving unit 91 is mounted on the back face of the mounting plate 80. The driving end of the driving unit 91 passes through one of the strip-shaped avoidance grooves 81 and is connected to a corresponding first moving seat 90, so that the driving unit 91 can drive the first moving seat 90 to move relative to the mounting plate 80 along the second direction X2. A connecting frame 92 is located on the back face of the mounting plate 80. One end of the connecting frame 92 passes through one of the strip-shaped avoidance grooves 81 and is fixedly connected to the corresponding first moving seat 90. The other end of the connecting frame 92 passes through the other strip-shaped avoidance groove 81 and is fixedly connected to the other first moving seat 90. As a result, the two first moving seats 90 and the connecting frame 92 can move together relative to the mounting plate 80 along the second direction X2 under the driving action of the driving unit 91, thereby driving the two first adhesive assemblies 10 to move relative to the mounting plate 80 along the second direction X2.

[0063] It should be noted that the driving unit 91 can adopt a linear module, such as a screw module, an electric cylinder, etc., as long as it can drive the first moving seat 90 to move relative to the mounting plate 80 along the second direction X2, and is not limited here.

[0064] Optionally, each first moving seat 90 can be installed on the front side of the mounting plate 80 via a guide structure such as a slider and a slide rail, so that the guide structure can be used to guide the movement of the first moving seat 90 along the second direction X2.

[0065] Continuing with Figures 3 to 5 , specifically in this embodiment, a first support plate 13 is connected to the suction end of each first adhesive component 10. The first support plate 13 extends from the suction end of the first adhesive component 10 toward the cutting component 30 along the second direction X2. Thus, after the cutting component 30 cuts the electrode strip A, the electrode strip A between the suction end of the first adhesive component 10 and the cutting component 30 is supported and fixed between the two first support plates 13, thereby preventing the cut end a of the electrode strip A from sagging significantly.

[0066] Furthermore, the first direction X1 is the vertical direction. The length dimension of the first support plate 13 located below the electrode strip A in the second direction X2 is the first length dimension, and the length dimension of the first support plate 13 located above the electrode strip A in the second direction X2 is the second length dimension. The first length dimension is greater than the second length dimension. In this way, the first support plate 13 located below the electrode strip A is lengthened, so that it can support a longer electrode strip A, further ensuring that the corresponding cut end a of the electrode strip A does not sag significantly.

[0067] Specifically in the embodiment, the clamping assembly 20 includes a mounting seat and two clamping blocks 21 (see Figure 3), and the two clamping blocks 21 are arranged on the mounting seat at intervals along the first direction X1. The two clamping blocks 21 can be controlled to move closer to or farther away from each other to clamp or loosen the pole piece strip A passing through. A second support plate 23 (see Figure 3) is fixedly connected to each clamping block 21, and the second support plate 23 extends from the clamping block 21 along the second direction X2 toward the cutting assembly 30. In this way, after the cutting assembly 30 cuts the pole piece strip A, the pole piece strip A between the clamping assembly 20 and the cutting assembly 30 is supported and fixed between the two second support plates 23, thereby avoiding a large drooping of the cut end a corresponding to the pole piece strip A.

[0068] It can be understood that after the cutting component 30 cuts the pole piece strip A, the pole piece strip A near one of the cut ends a is supported and fixed between the two first support plates 13, wherein the pole piece strip A near the other cut end a is supported and fixed between the two second support plates 23, thereby avoiding the two cut ends a from sagging too much, so that the second gluing component 40 can stick the second tape C to the two cut ends a.

[0069] Furthermore, the first direction X1 is the vertical direction. The length dimension of the second support plate 23 located below the electrode strip A in the second direction X2 is the third length dimension, and the length dimension of the second support plate 23 located above the electrode strip A in the second direction X2 is the fourth length dimension. The third length dimension is greater than the fourth length dimension. In this way, the second support plate 23 located below the electrode strip A is lengthened, so that it can support a longer electrode strip A, further ensuring that the corresponding cut end a of the electrode strip A does not sag significantly.

[0070] In an embodiment of the present disclosure, the second adhesive component 40 has an adsorption end that is movable along the first direction X1, and the adsorption end of the second adhesive component 40 is used to adsorb or release the second adhesive tape C. The adhesive device also includes a first adhesive preparation component 50. The second adhesive component 40 can be controlled to move to the adhesive preparation position and the adhesive application position along the second direction X2. When the second adhesive component 40 moves to the adhesive preparation position (as shown in Figure 3), the adsorption end of the second adhesive component 40 is opposite to the second adhesive tape C provided by the first adhesive preparation component 50 in the first direction X1, so that when the adsorption end of the second adhesive component 40 moves along the first direction X1, it can absorb the second adhesive tape C provided by the first adhesive preparation component 50. When the second adhesive component 40 moves to the adhesive application position, the adsorption end of the second adhesive component 40 is opposite to the two cut ends a formed by the cutting of the pole piece strip A in the first direction X1, so that when the adsorption end of the second adhesive component 40 moves along the first direction X1, it can stick the second adhesive tape C to the two cut ends a of the pole piece strip A.

[0071] Specifically in the embodiment, the second adhesive component 40 includes a second moving seat, a second driving structure 41 (see Figure 9) and a second adsorption plate 42 (see Figure 9). The second moving seat is movably connected to the mounting plate 80 along the second direction X2. The second driving structure 41 is mounted on the second moving seat, and the second adsorption plate 42 is mounted on the driving end of the second driving structure 41 so that the second driving structure 41 can drive the second adsorption plate 42 to move along the first direction X1. The second adsorption plate 42 serves as the adsorption end of the above-mentioned second adhesive component 40 and can controllably adsorb or release the second adhesive tape C.

[0072] In this way, when there is no second adhesive tape C on the second adsorption plate 42, the second moving seat is controlled to move relative to the mounting plate 80 in the second direction X2 until the second adsorption plate 42 reaches the adhesive preparation position, so that the second adsorption plate 42 and the second adhesive tape C provided by the first adhesive preparation assembly 50 are opposite each other in the first direction X1. At this time, the second drive structure 41 drives the second adsorption plate 42 toward the first adhesive preparation assembly 50 along the first direction X1 until the second adsorption plate 42 contacts the second adhesive tape C provided on the first adhesive preparation assembly 50. Then, the second adsorption plate 42 adsorbs the second adhesive tape C. Then, the second drive structure 41 drives the second adsorption plate 42 away from the first adhesive preparation assembly 50 along the first direction X1 until it returns to its initial position.

[0073] When it is necessary to attach the second adhesive tape C on the second adsorption plate 42 to the electrode material strip A, the second movable seat is controlled to move relative to the mounting plate 80 in the second direction X2 until the second adsorption plate 42 reaches the adhesive application position, so that the second adsorption plate 42 and the two cut ends a of the electrode material strip A are opposite each other in the first direction X1. Then, the second driving structure 41 drives the second adsorption plate 42 to approach the electrode material strip A along the first direction X1 until the second adhesive tape C is attached to the two cut ends a of the electrode material strip A. Then, the second adsorption plate 42 stops adsorbing the second adhesive tape C and, driven by the second driving structure 41, moves away from the electrode material strip A along the first direction X1 until it returns to its initial position.

[0074] It should be noted that the second moving seat can be installed on the mounting plate 80 via a guide structure such as a slider and a slide rail, so that the guide structure can be used to guide the movement of the second moving seat relative to the mounting plate 80 along the second direction X2.

[0075] It is understandable that a linear drive mechanism such as a linear module may be used to drive the second moving seat to move relative to the mounting plate 80 along the second direction X2, which is not limited here.

[0076] Furthermore, the second drive structure 41 can also drive the second adsorption plate 42 to move along the third direction X3, thereby adjusting the position of the second adsorption plate 42 in the third direction X3. The third direction X3 intersects with both the first direction X1 and the second direction X2. In this way, the second drive structure 41 drives the second adsorption plate 42 to adjust its position along the third direction X3, ensuring that the second adsorption plate 42 can accurately absorb the second adhesive tape C provided by the first adhesive preparation component 50 when preparing the glue, and that the second adsorption plate 42 can accurately stick the second adhesive tape C to the two cut ends a of the pole piece strip A when applying the glue. Preferably, the first direction X1, the second direction X2 and the third direction X3 are perpendicular to each other. It should be noted that the first direction X1 is a direction perpendicular to the pole piece strip A, the second direction X2 is the conveying direction of the pole piece strip A (i.e., the longitudinal direction of the pole piece strip A), and the third direction X3 is the width direction of the pole piece strip A.

[0077] It should be noted that the second driving structure 41 can adopt relatively mature related technologies, as long as it can drive the second adsorption plate 42 to move along the first direction X1 and the third direction X3, and is not limited here.

[0078] Specifically, in this embodiment, the cutting assembly 30 is movably connected to the mounting plate 80 along the second direction X2 and is fixedly connected to the second moving seat of the second gluing assembly 40, so that the cutting assembly 30 moves along with the second gluing assembly 40 along the second direction X2. In this manner, the cutting assembly 30 and the second gluing assembly 40 share a common drive mechanism, eliminating the need for an additional drive mechanism, thereby simplifying the device structure and reducing device costs.

[0079] It should be noted that after the adsorption ends of the two first adhesive components 10 and the clamping component 20 clamp the pole piece strip A, the cutting component 30 is controlled to move along the second direction X2 to the position where the pole piece strip needs to be cut, and the cutting component 30 cuts the pole piece strip A at this position. Then, the two first adhesive components 10 move a certain distance away from the clamping component 20 along the second direction X2, so that the two cut ends a of the pole piece strip A are spaced a certain distance from each other. The cutting component 30 moves a certain distance away from the clamping component 20 along the second direction X2 and leaves the position where the pole piece strip is cut (that is, away from the two cut ends a), and at the same time, the second adhesive component 40 moves along the second direction X2 to the adhesive position. At this time, the second adhesive component 40 sticks the second tape C to the two cut ends a of the pole piece strip A.

[0080] Specifically in the embodiment, the number of the second adhesive components 40 is set to two, and the two second adhesive components 40 are respectively arranged on both sides of the pole piece strip A in the first direction X1, so that the two second adhesive components 40 are respectively pasted with the second adhesive tape C from both sides of the pole piece strip A to the two cut ends a of the pole piece strip A, and then the two cut ends a of the pole piece strip A are jointly wrapped with the second adhesive tape C on both sides to ensure that the burrs of the two cut ends a are not exposed.

[0081] Furthermore, the second moving seats of the two second gluing components 40 are fixedly connected by a connecting block, so that when one of the second moving seats is driven to move along the second direction X2, the other second moving seat and the cutting component 30 also move synchronously along the second direction X2, that is, the two second gluing components 40 and the cutting component 30 share a driving mechanism, which is conducive to simplifying the device structure and reducing the device cost.

[0082] Furthermore, the number of first adhesive preparation components 50 is also set to two, and the two first adhesive preparation components 50 are respectively arranged on both sides of the electrode strip A in the first direction X1. In this way, one of the first adhesive preparation components 50 is used to provide the second adhesive tape C to the suction end of the first adhesive application component 10 located on the same side of the electrode strip A as the first adhesive preparation component 50; and the other first adhesive preparation component 50 is used to provide the second adhesive tape C to the suction end of the first adhesive application component 10 located on the same side of the electrode strip A as the first adhesive preparation component 50.

[0083] Please refer to Figure 3. In the embodiment of the present disclosure, the gluing device also includes two third gluing components 60 arranged on the side of the two first gluing components 10 away from the clamping component 20. The two third gluing components 60 are used for the pole piece strip A to pass through, that is, the two third gluing components 60 are respectively located on both sides of the pole piece strip A in the first direction X1. Each first gluing component 10 has an adsorption end for adsorbing the first tape B, and the adsorption ends of the two first gluing components 10 can be controlled to approach each other along the first direction X1 to respectively adhere the first tape B to the two side surfaces of the pole piece strip A. For the sake of convenience, the position where the two first gluing components 10 adhere the first tape B to the pole piece strip A is named the first position to be glued 200 (see Figure 3), and the position where the two third gluing components 60 adhere the first tape B to the pole piece strip A is named the second position to be glued 300 (see Figure 3). In this manner, after the two first adhesive laminating assemblies 10 apply the first adhesive tape B to the first adhesive laminating position 200 of the electrode strip A, and the two second adhesive laminating assemblies 40 apply the first adhesive tape B to the second adhesive laminating position 300 of the electrode strip A, the battery cell 100 is formed by winding the section of electrode strip A. In this battery cell 100, the first adhesive tape B applied by the two first adhesive laminating assemblies 10 and the first adhesive tape B applied by the two third adhesive laminating assemblies 60 are respectively located at the two corners F of the electrode strip A on the innermost circle of the battery cell 100, thereby protecting both corners F of the electrode strip A on the innermost circle of the battery cell 100.

[0084] Specifically in the embodiment, the glue application device further includes two second glue preparation components 70, which are respectively located on both sides of the pole piece strip A in the first direction X1. One of the second glue preparation components 70 is used to provide the first adhesive tape B to the adsorption end of a third glue application component 60 and a first glue application component 10 located on the same side of the pole piece strip A; and the other second glue preparation component 70 is used to provide the first adhesive tape B to the adsorption end of a third glue application component 60 and a first glue application component 10 located on the same side of the pole piece strip A.

[0085] Please refer to Figures 6 and 8 together. Furthermore, the two third adhesive components 60 are respectively installed on the two first moving seats 90, so that the two third adhesive components 60 can move along the second direction X2 with the two first moving seats 90. When the two first moving seats 90 drive the two first adhesive components 10 to move along the second direction X2 to the two second adhesive components 70, the adsorption ends of the two first adhesive components 10 are respectively opposite to the first adhesive tapes B provided by the two second adhesive components 70 in the first direction X1. At this time, the adsorption ends of the two first adhesive components 10 move toward the two second adhesive components 70 along the first direction X1 until the adsorption ends of the two first adhesive components 10 respectively absorb the first adhesive tapes B provided by the two second adhesive components 70. Then, the adsorption ends of the two first adhesive components 10 respectively move away from the two second adhesive components 70 along the first direction X1.

[0086] When the two first moving seats 90 drive the two third adhesive application components 60 to move along the second direction X2 to the two second adhesive preparation components 70, the suction ends of the two third adhesive application components 60 are respectively opposite the first adhesive tapes B provided by the two second adhesive preparation components 70 in the first direction X1. At this time, the suction ends of the two third adhesive application components 60 move toward the two second adhesive preparation components 70 along the first direction X1 until the suction ends of the two third adhesive application components 60 respectively absorb the first adhesive tapes B provided by the two second adhesive preparation components 70. Then, the suction ends of the two third adhesive application components 60 move away from the two second adhesive preparation components 70 along the first direction X1.

[0087] When the first moving seat 90 moves along the second direction X2 to the point where the adsorption ends of the two first glue components 10 are opposite to the first position to be glued 200 of the pole piece strip A in the first direction X1, and the adsorption ends of the two third glue components 60 are opposite to the second position to be glued 300 of the pole piece strip A in the first direction X1, the adsorption ends of the two first glue components 10 move toward the pole piece strip A along the first direction X1 respectively until the adsorption ends of the two first glue components 10 respectively stick the first tape B to the first position to be glued 200 of the pole piece strip A and clamp the pole piece strip A; at the same time, the adsorption ends of the two third glue components 60 move toward the pole piece strip A along the first direction X1 respectively until the adsorption ends of the two third glue components 60 respectively stick the first tape B to the second position to be glued 300 of the pole piece strip A and clamp the pole piece strip A.

[0088] Specifically in the embodiment, each first adhesive tape assembly 10 includes a first drive structure 11 and a first adsorption plate 12. The first drive structure 11 is mounted on the corresponding first moving seat 90, and the first adsorption plate 12 is mounted on the driving end of the first drive structure 11 so that the first drive structure 11 can drive the first adsorption plate 12 to move along the first direction X1. The first adsorption plate 12 serves as the adsorption end of the first adhesive tape assembly 10 and can controllably adsorb or release the first adhesive tape B. The first support plate 13 is fixedly connected to the corresponding first adsorption plate 12.

[0089] Furthermore, the first drive structure 11 can also drive the first adsorption plate 12 to move along the third direction X3, thereby adjusting the position of the first adsorption plate 12 in the third direction X3. In this way, the first drive structure 11 drives the first adsorption plate 12 to adjust its position along the third direction X3, ensuring that the first adsorption plate 12 can accurately absorb the first adhesive tape B on the second adhesive preparation assembly 70 during adhesive preparation, and that the first adsorption plate 12 can accurately adhere the first adhesive tape B to the first adhesive-to-be-applied position 200 of the electrode strip A during adhesive application.

[0090] It should be noted that the first driving structure 11 can adopt relatively mature related technologies, as long as it can drive the first adsorption plate 12 to move along the first direction X1 and along the third direction X3, and is not limited here.

[0091] Specifically, in this embodiment, the third adhesive tape assembly 60 includes a third drive structure 61 and a third suction plate 62. The third drive structure 61 is mounted on the first moving base 90, and the third suction plate 62 is mounted at the driving end of the third drive structure 61, so that the third drive structure 61 can drive the third suction plate 62 to move in the first direction X1. The third suction plate 62 serves as the suction end of the third adhesive tape assembly 60 and can controllably absorb and release the first adhesive tape B.

[0092] Furthermore, the third drive structure 61 can also drive the third suction plate 62 to move along the third direction X3, thereby adjusting the position of the third suction plate 62 in the third direction X3. In this way, the third drive structure 61 drives the third suction plate 62 to adjust its position along the third direction X3, ensuring that the third suction plate 62 can accurately absorb the first adhesive tape B on the second adhesive preparation assembly 70 during adhesive preparation, and that the third suction plate 62 can accurately adhere the first adhesive tape B to the second adhesive-applying position 300 of the electrode strip A during adhesive application.

[0093] It should be noted that the third driving structure 61 can adopt relatively mature related technologies, as long as it can drive the third adsorption plate 62 to move along the first direction X1 and the third direction X3, and is not limited here.

[0094] Referring to FIG. 9 , specifically in this embodiment, in the second direction X2, the first drive structure 11 is located on the side of the first adsorption plate 12 facing away from the second adsorption plate 42, and the second drive structure 41 is located on the side of the second adsorption plate 42 facing away from the first adsorption plate 12. In this way, when the first adhesive component 10 adheres the first adhesive tape B to the electrode material strip A, the first drive structure 11 will not interfere with the second adhesive component 40; and when the second adhesive component 40 adheres the second adhesive tape C to the two cut ends a of the electrode material strip A, the second drive structure 41 will not interfere with the first adhesive component 10, thereby improving space utilization and reducing the difficulty of spatial layout of various components.

[0095] Furthermore, in the second direction X2, the third driving structure 61 is located on the side of the third adsorption plate 62 away from the first adsorption plate 12, which is beneficial to improving space utilization and facilitating the spatial layout of the third driving structure 61 and the first driving structure 11.

[0096] Based on the above-mentioned glue applying device, the present disclosure also provides a glue applying method. The glue applying method includes the following steps:

[0097] S10: The adsorption ends (i.e., the first adsorption plates 12) of the two first adhesive assemblies 10 approach each other along the first direction X1 until they clamp the electrode strip A passing by, so that the first adhesive tapes B adsorbed on the adsorption ends of the two first adhesive assemblies 10 are respectively adhered to the two sides of the electrode strip A. The clamping assembly 20 also clamps the electrode strip A passing by.

[0098] Specifically, first, the driving unit 91 drives the two first moving seats 90 to move along the second direction X2 until the adsorption ends of the two first adhesive components 10 are opposite to the first adhesive position 200 of the pole piece strip A in the first direction X1, and at the same time, the adsorption ends of the two third adhesive components 60 (i.e., the third adsorption plates 62) are opposite to the second adhesive position 300 of the pole piece strip A in the first direction X1. Then, the adsorption end of each first adhesive component 10 approaches the pole piece strip A along the first direction X1 until the adsorption ends of the two first adhesive components 10 stick the first adhesive tape B to the two sides of the pole piece strip A and clamp the pole piece strip A; the adsorption end of each third adhesive component 60 approaches the pole piece strip A along the first direction X1 until the adsorption ends of the two third adhesive components 60 stick the first adhesive tape B to the two sides of the pole piece strip A and clamp the pole piece strip A.

[0099] S20, the cutting assembly 30 cuts the electrode strip A at the position between the two first adhesive laminating assemblies 10 and the clamping assembly 20. At this time, the electrode strip A between the cutting assembly 30 and the adsorption ends of the two first adhesive laminating assemblies 10 is supported and fixed between the two first support plates 13, and the electrode strip A between the cutting assembly 30 and the clamping assembly 20 is supported and fixed between the two second support plates 23, thereby preventing the two cut ends a formed by the cutting of the electrode strip A from sagging significantly.

[0100] S30: Control the two first adhesive assemblies 10 to move a certain distance away from the clamping assembly 20 along the second direction X2, thereby driving the two cut ends a formed by the cut electrode strip A to separate from each other by a certain distance. Specifically, the drive unit 91 drives the two first moving seats 90 to move a certain distance away from the clamping assembly 20 along the second direction X2, thereby driving the two first adhesive assemblies 10 and the two third adhesive assemblies 60 to move a certain distance away from the clamping assembly 20 along the second direction X2, thereby driving the two cut ends a formed by the cut electrode strip A to separate from each other by a certain distance.

[0101] S40, the second adhesive component 40 sticks the second adhesive tape C to the two cut ends a formed by the cutting of the pole piece strip A. Specifically, first, the two second moving seats are controlled to move along the second direction X2, thereby driving the two adhesive components 40 to move along the second direction X2, until the adsorption ends (i.e., the second adsorption plates 42) of the two second adhesive components 40 are opposite to the two cut ends a of the pole piece strip A in the first direction X1. At the same time, the cutting component 30 moves along the second direction X2 with the second moving seat to move away from the two cut ends a of the pole piece strip A, thereby avoiding the cutting component 30 from interfering with the adhesive action of the second adhesive component 40. Then, the adsorption ends of the two second adhesive components 40 approach the pole piece strip A along the first direction X1, until the adsorption ends of the two second adhesive components 40 respectively stick the second adhesive tape C to the two cut ends a of the pole piece strip A. Then, the adsorption ends of the two second adhesive components 40 stop adsorbing the respective second adhesive tapes C, and the adsorption ends of the two second adhesive components 40 move away from the electrode material strip A along the first direction X1.

[0102] S50: The suction ends of the two first adhesive assemblies 10 stop suctioning the first adhesive tape B and move away from each other in the first direction X1, thereby releasing the electrode strip A in its path. The clamping assembly 20 also releases the electrode strip A in its path. At this point, the electrode strip A continues to be transported downstream to the winding device for winding and forming the battery cell 100. Specifically, the suction ends of the two third adhesive assemblies 60 also stop suctioning the first adhesive tape B and move away from each other in the first direction X1, thereby releasing the electrode strip A in its path.

[0103] Furthermore, before step S10, a first glue preparation step is also included:

[0104] The driving unit 91 drives the two first moving seats 90 to move along the second direction X2 until the adsorption ends of the two first adhesive application components 10 are respectively opposite to the first adhesive tapes B provided by the two second adhesive preparation components 70 in the first direction X1;

[0105] The adsorption ends of the two first adhesive application components 10 move along the first direction X1 to respectively absorb the first adhesive tapes B provided by the two second adhesive preparation components 70 .

[0106] Furthermore, before step S10, a second glue preparation step is also included:

[0107] The driving unit 91 drives the two first moving seats 90 to move along the second direction X2 until the adsorption ends of the two third adhesive application components 60 are respectively opposite to the first adhesive tapes B provided by the two second adhesive preparation components 70 in the first direction X1;

[0108] The adsorption ends of the two third adhesive application components 60 move along the first direction X1 to respectively absorb the first adhesive tapes B provided by the two second adhesive preparation components 70 .

[0109] It should be noted that the first glue preparation step can be performed before the second glue preparation step, and of course can also be performed after the second glue preparation step, which is not limited here.

[0110] Furthermore, before step S40, a third glue preparation step is also included:

[0111] Control the two second moving seats to move along the second direction X2 until the adsorption ends of the two second adhesive application components 40 are respectively opposite to the second adhesive tapes C provided by the two first adhesive preparation components 50 in the first direction X1;

[0112] The adsorption ends of the two second adhesive application components 40 move along the first direction X1 to respectively absorb the second adhesive tapes C provided on the two first adhesive preparation components 50 .

[0113] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned 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.

[0114] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person of ordinary skill in the art could make various modifications and improvements without departing from the spirit of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the present patent shall be determined by the appended claims.

Claims

1. A glue sticking device, characterized in that: include: Two first adhesive components are arranged at intervals along a first direction, and a pole piece strip passes between the two first adhesive components. Each first adhesive component has an adsorption end for adsorbing the first adhesive tape. The adsorption ends of the two first adhesive components can be controlled to approach each other along the first direction so as to respectively adhere the first adhesive tape to the pole piece strip passing through and can clamp the pole piece strip passing through. A clamping assembly is arranged on one side of the two first adhesive bonding assemblies in the second direction, and is used to clamp the pole piece strip passing through, wherein the second direction intersects with the first direction; A cutting assembly, used for cutting the electrode strip between the two first adhesive laminating assemblies and the clamping assembly; and The second adhesive tape assembly is used to stick the second adhesive tape to the two cut ends formed by cutting the electrode strip.

2. The adhesive laminating device according to claim 1, characterized in that: The two first adhesive components can be moved in a controlled manner along the second direction.

3. The adhesive laminating device according to claim 1, characterized in that: A first supporting plate is connected to the adsorption end of each first adhesive component, and the first supporting plate extends from the adsorption end of the first adhesive component toward the cutting component along the second direction.

4. The adhesive laminating device according to claim 3, characterized in that: The first direction is the up-down direction, the length dimension of the first supporting plate located below the pole piece strip in the second direction is the first length dimension, and the length dimension of the first supporting plate located above the pole piece strip in the second direction is the second length dimension; The first length dimension is greater than the second length dimension.

5. The adhesive laminating device according to claim 1, characterized in that: The clamping assembly includes a mounting seat and two clamping blocks spaced apart along the first direction on the mounting seat, wherein the two clamping blocks can be controlled to move closer to or farther from each other to clamp or release the pole piece strip passing through; A second supporting plate is connected to each of the clamping blocks, and the second supporting plate extends from the clamping block toward the cutting assembly along the second direction.

6. The adhesive laminating device according to claim 1, characterized in that: The second adhesive component has an adsorption end movable along the first direction, and the adsorption end of the second adhesive component is used to adsorb or release the second adhesive tape; The glue applying device further includes a first glue preparation component, and the second glue applying component can be controlled to move along the second direction to the glue preparation position so that the adsorption end of the second glue applying component is opposite to the second adhesive tape provided by the first glue preparation component in the first direction.

7. The adhesive laminating device according to claim 6, characterized in that: The cutting assembly is movable along the second direction and is connected to the second gluing assembly so that the cutting assembly moves along the second direction along with the second gluing assembly.

8. The adhesive laminating device according to claim 1, characterized in that: The gluing device further includes two third gluing components arranged on a side of the two first gluing components away from the clamping component, and the electrode strip is passed through between the two third gluing components; Each of the third adhesive components has an adsorption end for adsorbing the first adhesive tape. The adsorption ends of the two third adhesive components can be controlled to approach each other along the first direction to respectively adhere the first adhesive tape to the pole piece material tape passing by.

9. The adhesive laminating device according to claim 8, characterized in that: The gluing device further includes two first moving seats, the two first gluing assemblies are respectively arranged on the two first moving seats, the two third gluing assemblies are respectively arranged on the two first moving seats, and the two first moving seats are fixedly connected by a connecting frame; The glue applying device further includes a driving unit, wherein a driving end of the driving unit is connected to one of the first moving seats to drive the first moving seat to move along the second direction.

10. A winding device, characterized in that: The invention comprises a gluing device as claimed in any one of claims 1 to 9.

11. A method for applying glue, characterized in that: Applicable to the glue applying device according to any one of claims 1 to 9, the glue applying method comprises the following steps: a. The adsorption ends of the two first adhesive components approach each other along the first direction until the electrode strip passing through is clamped, so that the first adhesive tapes adsorbed on the adsorption ends of the two first adhesive components are respectively adhered to the two sides of the electrode strip; the clamping component clamps the electrode strip passing through; b. The cutting assembly cuts the electrode strip between the two first gluing assemblies and the clamping assembly; c. The second adhesive tape is attached to the two cut ends of the electrode strip by the second adhesive tape assembly; d. The adsorption ends of the two first adhesive components move away from each other along the first direction; and the clamping component releases the electrode material strip that it passes through.

12. The adhesive laminating method according to claim 11, characterized in that: Also included between step b and step c: The two first adhesive components move away from the clamping component along the second direction by a preset distance.

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