Pole piece gluing equipment and winding device

Abstract

The utility model relates to the technical field of lithium battery automation equipment, and specifically to a pole piece gluing device and a winding device. The pole piece gluing device includes a gluing mechanism, which includes: a glue preparation component and a first glue application roller and a second glue application roller that are spaced apart; at least one surface of the first glue application roller and the second glue application roller has an adsorption surface, and a plurality of glue preparation components are provided, and the glue outlet ends of all glue preparation components are arranged toward the adsorption surface. The first glue application roller and the second glue application roller cooperate to be able to paste and press the adhesive tape from the glue preparation component onto the pole piece. An adsorption surface is provided on one of the surfaces of the first glue application roller and the second glue application roller, so that the gluing device can adapt to different gluing processes. In addition, a plurality of glue preparation components are provided, so that the adhesive tape released by the glue preparation component can be adsorbed on different positions on the first glue application roller and the second glue application roller, thereby further improving the applicability of the gluing device.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery automation equipment, in particular to a pole piece gluing equipment and a winding device. Background Art

[0002] The pole pieces of lithium batteries are usually wound by a winding machine. During the winding process, tape needs to be attached to the pole pieces to prevent them from falling apart.

[0003] The existing glue sticking equipment for sticking glue on the electrode generally includes a glue sticking roller, a glue preparation component, a glue tray and a cutting component. When in use, the glue paper on the glue tray is brought to the glue sticking roller by the glue preparation component, the glue sticking roller absorbs the glue paper, and then the glue paper is cut by the cutting component, and then the glue paper can be stuck on the electrode by the glue sticking roller.

[0004] However, since the glue preparation position of the existing glue laminating equipment is fixed, it is only applicable to the corresponding type of pole pieces, and the effect is poor when more diverse glue laminating processes are required. Utility Model Content

[0005] (I) The problem to be solved by the utility model is that the existing glue sticking equipment has a fixed glue preparation position and cannot be applied to more diverse glue sticking processes.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the embodiment of the utility model provides a pole piece gluing device for sticking adhesive tape to the surface of the pole piece, and the gluing device includes a gluing mechanism;

[0008] The glue applying mechanism comprises: a glue preparation assembly and a first glue applying roller and a second glue applying roller arranged at intervals;

[0009] At least one surface of the first glue-applying roller and the second glue-applying roller has an adsorption surface, a plurality of the glue preparation components are provided, and the glue outlet ends of all the glue preparation components are arranged toward the adsorption surface.

[0010] Furthermore, the surfaces of the first rubber-applying roller and the second rubber-applying roller are both provided with the adsorption surface;

[0011] Some of the glue preparation components are arranged at intervals along the circumference of the first glue application roller, and the glue outlet end is arranged toward the adsorption surface of the first glue application roller, and the remaining part of the glue preparation components are arranged at intervals along the circumference of the second glue application roller, and the glue outlet end is arranged toward the adsorption surface of the second glue application roller.

[0012] Furthermore, a plurality of the gluing mechanisms are provided, and all of the gluing mechanisms are arranged in sequence and at intervals along the movement trajectory of the pole piece.

[0013] Furthermore, the linear speed of the first glue-applying roller and the linear speed of the second glue-applying roller are the same as the running speed of the pole piece.

[0014] Furthermore, it also includes an adjustment mechanism corresponding to the glue preparation component;

[0015] The glue preparation assembly is arranged on the machine platform through the corresponding adjustment mechanism;

[0016] The adjusting mechanism drives the corresponding glue preparation component to move along the first direction and / or the second direction.

[0017] Furthermore, the adjustment mechanism drives the corresponding glue preparation component to move along a first direction and a second direction, and the first direction is perpendicular to the second direction.

[0018] Furthermore, the adsorption surface is formed by vacuum adsorption holes opened on the surfaces of the first adhesive roller and the second adhesive roller.

[0019] Another embodiment of the present invention further provides a winding device, comprising a driving device and the gluing device described in any of the above embodiments; the driving device is used to drive the pole piece to move along a preset direction.

[0020] Further, the driving device includes a driving unit, a turret and a winding needle;

[0021] The driving unit is in transmission connection with the turret and drives the turret to rotate;

[0022] There are multiple winding needles, all of which are arranged on the turret at intervals. One end of the pole piece passes through the area between the first glue-applying roller and the second glue-applying roller and is connected to the winding needle.

[0023] Further, it also includes unwinding equipment;

[0024] The unwinding device is used to store the pole piece, and the unwinding device, the gluing mechanism and the driving device are arranged in sequence.

[0025] Beneficial effects of the utility model:

[0026] The utility model provides a pole piece gluing device, which is used for sticking adhesive tape to the surface of the pole piece. The gluing device comprises a gluing mechanism; the gluing mechanism comprises: a glue preparation component and a first glue application roller and a second glue application roller arranged at intervals; at least one surface of the first glue application roller and the second glue application roller has an adsorption surface, a plurality of glue preparation components are arranged, and the glue outlet ends of all the glue preparation components are arranged toward the adsorption surface.

[0027] By setting the first glue sticking roller and the second glue sticking roller to cooperate, the glue paper from the glue preparation assembly can be pasted and pressed on the pole piece. An adsorption surface is set on one of the surfaces of the first glue sticking roller and the second glue sticking roller, so that the glue sticking equipment can adapt to different glue sticking processes. In addition, multiple glue preparation assemblies are set, so that the glue paper released by the glue preparation assembly can be adsorbed at different positions on the first glue sticking roller and the second glue sticking roller, thereby further improving the applicability of the glue sticking equipment. Compared with the prior art, the first glue sticking roller and the second glue sticking roller have multiple glue preparation positions, which can be applicable to pole pieces of different models and can adapt to a variety of different glue sticking processes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 A schematic diagram of the structure of the first glue-applying roller and the glue-applying assembly provided in an embodiment of the utility model;

[0030] Figure 2 A schematic diagram of the structure of a first rubber-coating roller provided in an embodiment of the utility model;

[0031] Figure 3 A schematic diagram of the structure of the first adhesive tape roller and the second adhesive tape roller provided in the embodiment of the utility model for pasting adhesive tape on the pole piece;

[0032] Figure 4 A schematic structural diagram of a winding device provided in an embodiment of the utility model.

[0033] Icon: 1-pole piece;

[0034] 11-gluing mechanism; 111-first gluing roller; 112-second gluing roller; 113-adsorption surface; 114-glue preparation assembly;

[0035] 21-driving device; 211-turret; 212-winding needle;

[0036] 31- Unwinding equipment. DETAILED DESCRIPTION

[0037] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] like Figures 1 to 4 As shown, an embodiment of the utility model provides a pole piece gluing device for sticking adhesive tape to the surface of the pole piece 1, and the gluing device includes a gluing mechanism 11; the gluing mechanism 11 includes: a glue preparation component 114 and a first glue application roller 111 and a second glue application roller 112 arranged at intervals; at least one surface of the first glue application roller 111 and the second glue application roller 112 has an adsorption surface 113, a plurality of glue preparation components 114 are arranged, and the glue outlet ends of all glue preparation components 114 are arranged toward the adsorption surface 113.

[0039] The pole piece gluing device provided in this embodiment is used to stick adhesive tape on the surface of the pole piece 1, so as to prevent the pole piece 1 from being loosened after winding. The pole piece gluing device includes a gluing mechanism 11, which is an executive body for sticking adhesive tape on the surface of the pole piece 1.

[0040] Specifically, in this embodiment, the glue-applying mechanism 11 includes a glue preparation component 114, a first glue-applying roller 111, and a second glue-applying roller 112. The first glue-applying roller 111 and the second glue-applying roller 112 are arranged at intervals up and down so that the pole piece 1 can pass through the area between the first glue-applying roller 111 and the second glue-applying roller 112. At least one surface of the first glue-applying roller 111 and the second glue-applying roller 112 has an adsorption surface 113, and the adsorption surface 113 is used to adsorb the adhesive tape from the glue preparation component 114. The glue preparation component 114 is used to release the adhesive tape wound on the glue disc onto the first glue-applying roller 111 and / or the second glue-applying roller 112. When in use, a power source such as a drive motor, an engine or a hydraulic motor is provided to drive the first glue roller 111 and the second glue roller 112 to rotate. When the pole piece 1 passes through the area between the first glue roller 111 and the second glue roller 112, the first glue roller 111 and / or the second glue roller 112 can stick the adhesive tape adsorbed on the adsorption surface 113 to the pole piece 1 and compact the adhesive tape adhered to the pole piece 1.

[0041] Among them, at least one surface of the first rubber roller 111 and the second rubber roller 112 has an adsorption surface 113, specifically, only the surface of the first rubber roller 111 has the adsorption surface 113, or, only the surface of the second rubber roller 112 has the adsorption surface 113, or, both the surfaces of the first rubber roller 111 and the second rubber roller 112 have the adsorption surface 113.

[0042] Furthermore, in the present embodiment, a plurality of glue preparation components 114 are provided, and a glue outlet end of each glue preparation component 114 is arranged toward the adsorption surface 113 .

[0043] Specifically, in this embodiment, when only the adsorption surface 113 is provided on the surface of the first glue roller 111, the glue outlet ends of all the glue preparation components 114 are arranged toward the adsorption surface 113 on the surface of the first glue roller 111. When only the adsorption surface 113 is provided on the surface of the second glue roller 112, the glue outlet ends of all the glue preparation components 114 are arranged toward the adsorption surface 113 on the surface of the second glue roller 112. When the surfaces of both the first glue roller 111 and the second glue roller 112 are provided with adsorption surfaces 113, the glue preparation components 114 are divided into two parts, preferably, the number of the two parts of the glue preparation components 114 is the same; the glue outlet ends of one part of the glue preparation components 114 are arranged toward the adsorption surface 113 of the first glue roller 111, and the glue outlet ends of the other part of the glue preparation components 114 are arranged toward the adsorption surface 113 on the surface of the second glue roller 112.

[0044] And, preferably, in this embodiment, the glue preparation components 114 cooperating with the first glue roller 111 are arranged at intervals along the circumference of the first glue roller 111, and the glue preparation components 114 cooperating with the second glue roller 112 are arranged at intervals along the circumference of the second glue roller 112.

[0045] The pole piece gluing equipment provided in this embodiment can stick and press the adhesive tape from the adhesive preparation component 114 onto the pole piece 1 by setting the first adhesive roller 111 and the second adhesive roller 112 to cooperate. An adsorption surface 113 is set on one of the surfaces of the first adhesive roller 111 and the second adhesive roller 112, so that the gluing equipment can adapt to different gluing processes. In addition, multiple adhesive preparation components 114 are set, so that the adhesive tape released by the adhesive preparation components 114 can be adsorbed at different positions on the first adhesive roller 111 and the second adhesive roller 112, thereby further improving the applicability of the gluing equipment. Compared with the prior art, the first adhesive roller 111 and the second adhesive roller 112 have multiple adhesive preparation positions, which can be applicable to pole pieces 1 of different models and can adapt to a variety of different adhesive processes.

[0046] The electrode gluing device provided by the embodiment of the utility model is as follows: Figure 2 As shown, the surfaces of the first glue roller 111 and the second glue roller 112 are both provided with an adsorption surface 113; some of the glue preparation components 114 are arranged at intervals along the circumference of the first glue roller 111, and the glue outlet end is arranged toward the adsorption surface 113 of the first glue roller 111, and the remaining parts of the glue preparation components 114 are arranged at intervals along the circumference of the second glue roller 112, and the glue outlet end is arranged toward the adsorption surface 113 of the second glue roller 112.

[0047] In this embodiment, it is preferred that the surfaces of the first glue-applying roller 111 and the second glue-applying roller 112 are both provided with an adsorption surface 113, so as to provide the applicability of the glue-applying equipment. As mentioned above, a plurality of glue preparation components 114 are provided. All the glue preparation components 114 are divided into two parts, one part of which is arranged at intervals along the circumference of the first glue-applying roller 111, and the glue outlet ends of this part of the glue preparation components 114 are all arranged toward the adsorption surface 113 of the first glue-applying roller 111, and the other part is arranged at intervals along the circumference of the second glue-applying roller 112, and the glue outlet ends of this part of the glue preparation components 114 are all arranged toward the adsorption surface 113 of the second glue-applying roller 112.

[0048] It should be noted that the glue preparation assembly 114 is generally composed of a suction cup assembly, a glue pressing roller assembly and a cutter assembly, etc., which can be purchased from outside and is not the main improvement of this application. Its specific structure will not be described in detail here.

[0049] The electrode gluing device provided by the embodiment of the utility model is as follows: Figure 4 As shown, a plurality of gluing mechanisms 11 are provided, and along the movement track of the pole piece 1, all the gluing mechanisms 11 are arranged in sequence and at intervals.

[0050] In this embodiment, preferably, a plurality of gluing mechanisms 11 may be provided, and all of the gluing mechanisms 11 are sequentially arranged at intervals along the motion trajectory of the pole piece 1, and one end of the pole piece 1 sequentially passes through all of the gluing mechanisms 11. By providing a plurality of gluing mechanisms 11, the applicability of the gluing device can be further improved.

[0051] In the pole piece gluing equipment provided by the embodiment of the utility model, the linear speed of the first gluing roller 111 and the linear speed of the second gluing roller 112 are the same as the running speed of the pole piece 1 .

[0052] Preferably, in this embodiment, when the first glue roller 111 and the second glue roller 112 are running, the linear speed of the first glue roller 111, the linear speed of the second glue roller 112 and the running speed of the electrode 1 are the same. When the first glue roller 111 and / or the second glue roller 112 are gluing the electrode 1, adhesive tape is prepared on the corresponding glue roller in advance. In this way, there is no need to stop winding when gluing the electrode 1, which can effectively avoid wasting time due to gluing and improve production efficiency.

[0053] For example, in Figure 3 In the embodiment, the linear speed of the first rubber-coating roller 111 is V1, the linear speed of the second rubber-coating roller 112 is V2, and the running speed of the pole piece 1 is V3, wherein V1=V2=V3.

[0054] The pole piece gluing equipment provided by the embodiment of the utility model also includes an adjustment mechanism corresponding to the glue preparation component 114 (not reflected in the drawings of the specification); the glue preparation component 114 is arranged on the machine platform through the corresponding adjustment mechanism; the adjustment mechanism drives the corresponding glue preparation component 114 to move along the first direction and / or the second direction.

[0055] Preferably, in the present embodiment, the electrode gluing equipment further includes an adjusting mechanism, and the adjusting mechanism is arranged in a one-to-one correspondence with the preparation glue assembly 114. That is, the number of the adjusting mechanisms is the same as the number of the preparation glue assembly 114, and each preparation glue assembly 114 is provided with an adjusting mechanism. Among them, the preparation glue assembly 114 is installed on a machine platform through a corresponding adjusting mechanism, and the machine platform is a machine platform of a winding device. The adjusting mechanism is used to drive the corresponding preparation glue assembly 114 to move in a first direction, or the adjusting mechanism is used to drive the corresponding preparation glue assembly 114 to move in a second direction, or the adjusting mechanism is used to drive the corresponding preparation glue assembly 114 to move in the first direction and the second direction at the same time.

[0056] In this embodiment, by setting an adjustment mechanism to drive the corresponding glue preparation component 114 to move along the first direction and / or the second direction, it is possible to glue at different positions and different lengths according to different process requirements, and it is also possible to glue the pole pieces 1 of different material line references, which has strong applicability. In addition, when there is a problem of glue misalignment, the position of the glue preparation component 114 can be adjusted in time.

[0057] In the pole piece gluing device provided by the embodiment of the utility model, the adjustment mechanism drives the corresponding glue preparation component 114 to move along the first direction and the second direction, and the first direction and the second direction are perpendicular.

[0058] Preferably, in this embodiment, the adjustment mechanism can drive the corresponding adhesive preparation assembly 114 to move in the first direction and the second direction at the same time, so that the adjustment mechanism has a larger range. In addition, the first direction and the second direction are perpendicular, so that the adjustment mechanism has a higher adjustment accuracy.

[0059] Preferably, in the present embodiment, the first direction is the axial direction of the glue application roller corresponding to the glue preparation component 114 , and the second direction is the circumferential direction of the glue application roller corresponding to the glue preparation component 114 .

[0060] Optionally, in this embodiment, the first direction or the second direction may also be the radial direction of the corresponding rubber-applying roller.

[0061] In the pole piece gluing device provided in this embodiment, the adjustment mechanism can be two linear modules, and for the convenience of description, the two linear modules are respectively a first linear module and a second linear module, and the glue preparation component 114 corresponding to the adjustment mechanism is installed on the first linear module, and the first linear module is installed on the second linear module. When in use, the first linear module drives the glue preparation component 114 to move in the first direction, and the second linear module drives the glue preparation component 114 to move in the second direction.

[0062] Alternatively, in this embodiment, the adjustment mechanism may also be formed by a slide rail, a gear and a rack, which can also achieve the purpose of driving the rubber preparation component 114 to move along the first direction and / or the second direction.

[0063] The pole piece gluing equipment provided by the embodiment of the utility model comprises a suction surface 113 formed by vacuum suction holes provided on the surfaces of the first gluing roller 111 and the second gluing roller 112 .

[0064] In this embodiment, the surface of the adhesive roller is provided with vacuum adsorption holes, and the vacuum adsorption holes and the surrounding areas form the above-mentioned adsorption surface 113. There are multiple vacuum adsorption holes, and all the vacuum adsorption holes are regularly arrayed on the surface of the adhesive roller. The vacuum adsorption holes are connected to a vacuum pump, and the adhesive tape can be adsorbed by vacuum pumping.

[0065] Another embodiment of the present invention also provides a winding device, such as Figure 4 As shown, the winding device includes a driving device 21 and the glue sticking device described in any of the above embodiments. The driving device 21 is used to drive the pole piece 1 to move along a preset direction.

[0066] The winding device in this embodiment includes all the advantages of the above-mentioned glue laminating device, so it will not be described in detail here.

[0067] The winding device provided in the embodiment of the utility model is as follows Figure 4 As shown, the driving device 21 includes a driving unit, a turret 211 and a winding needle 212; the driving unit is connected to the turret 211 and drives the turret 211 to rotate; a plurality of winding needles 212 are provided, and all winding needles 212 are arranged on the turret 211 at intervals, and one end of the pole piece 1 passes through the area between the first glue roller 111 and the second glue roller 112 and is connected to the winding needle 212.

[0068] In this embodiment, the driving device 21 includes a driving unit, a turret 211, a winding needle 212 and other structures. Among them, the driving unit and the turret 211 can be connected to each other through a gear set, a sprocket chain or a pulley drive belt. The winding device also includes a machine, and a winding needle 212 is provided on the front of the turret 211, and the back is rotatably arranged on the machine through a rotating shaft and a bearing. There are multiple winding needles 212, and all the winding needles 212 are arranged on the turret 211 at intervals. For example, in this embodiment, the winding needles 212 are distributed on the turret 211 in a triangular shape. One end of the pole piece 1 passes through the area between the first glue roller 111 and the second glue roller 112 and is connected to the winding needle 212. When in use, the turret 211 is driven to rotate by the driving unit, so that the pole piece 1 can be wound on the turret 211.

[0069] The winding device provided in this embodiment has one end of the first rubber roller 111 and the second rubber roller 112 as a mounting end, and the mounting end of the first rubber roller 111 and the mounting end of the second rubber roller 112 are rotatably mounted on the machine platform through bearings and other structures, and are driven to rotate by setting a power source.

[0070] The winding device provided in the embodiment of the utility model is as follows Figure 4 As shown, it also includes an unwinding device 31; the unwinding device 31 is used to store the pole piece 1, and the unwinding device 31, the glue sticking mechanism 11 and the driving device 21 are arranged in sequence.

[0071] In this embodiment, the winding device further includes an unwinding device 31, on which the pole piece 1 is wound. One end of the pole piece 1 on the unwinding device 31 passes through the glue sticking mechanism 11 and is connected to the winding needle 212 on the driving device 21, and the turret 211 is driven to rotate by the driving unit, so that the pole piece 1 on the unwinding device 31 can be wound on the turret 211. In addition, the unwinding device 31, all the glue sticking mechanisms 11 and the driving device 21 are arranged in sequence, which can facilitate the arrangement of the winding device.

[0072] In this embodiment, the movement direction of the pole piece 1 is from the unwinding device 31 to the driving device 21 .

[0073] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0074] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pole piece gluing device, used for sticking adhesive tape to the surface of the pole piece (1), the gluing device comprising a gluing mechanism (11); It is characterized in that The glue applying mechanism (11) comprises: a glue preparation component (114) and a first glue applying roller (111) and a second glue applying roller (112) which are arranged at intervals; At least one surface of the first glue-applying roller (111) and the second glue-applying roller (112) has an adsorption surface (113), a plurality of the glue preparation components (114) are provided, and the glue outlet ends of all the glue preparation components (114) are arranged toward the adsorption surface (113).

2. The pole piece gluing equipment according to claim 1, characterized in that: The surfaces of the first glue-applying roller (111) and the second glue-applying roller (112) are both provided with the adsorption surface (113); Part of the glue preparation components (114) are arranged at intervals along the circumference of the first glue application roller (111), and the glue outlet end is arranged toward the adsorption surface (113) of the first glue application roller (111), and the remaining part of the glue preparation components (114) are arranged at intervals along the circumference of the second glue application roller (112), and the glue outlet end is arranged toward the adsorption surface (113) of the second glue application roller (112).

3. The pole piece gluing equipment according to claim 1, characterized in that: A plurality of the glue sticking mechanisms (11) are provided, and along the movement track of the pole piece (1), all of the glue sticking mechanisms (11) are arranged in sequence and at intervals.

4. The pole piece gluing equipment according to any one of claims 1 to 3, characterized in that: The linear speed of the first glue-applying roller (111) and the linear speed of the second glue-applying roller (112) are the same as the running speed of the pole piece (1).

5. The pole piece gluing equipment according to any one of claims 1 to 3, characterized in that: It also includes an adjustment mechanism corresponding to the rubber preparation component (114); The glue preparation component (114) is arranged on the machine platform through the corresponding adjustment mechanism; The adjustment mechanism drives the corresponding glue preparation component (114) to move along the first direction and / or the second direction.

6. The pole piece gluing equipment according to claim 5, characterized in that: The adjustment mechanism drives the corresponding glue preparation component (114) to move along a first direction and a second direction, and the first direction is perpendicular to the second direction.

7. The pole piece gluing equipment according to claim 1, characterized in that: The adsorption surface (113) is formed by vacuum adsorption holes opened on the surfaces of the first adhesive roller (111) and the second adhesive roller (112).

8. A winding device, characterized in that: It comprises a driving device (21) and a glue sticking device as claimed in any one of claims 1 to 7, wherein the driving device (21) is used to drive the pole piece (1) to move along a preset direction.

9. The winding device according to claim 8, characterized in that The driving device (21) comprises a driving unit, a turret (211) and a winding needle (212); The driving unit is in transmission connection with the turret (211) and drives the turret (211) to rotate; A plurality of winding needles (212) are provided, and all of the winding needles (212) are arranged at intervals on the turret (211); one end of the pole piece (1) passes through the area between the first glue-applying roller (111) and the second glue-applying roller (112) and is connected to the winding needle (212).

10. The winding device according to claim 8, characterized in that Also includes an unwinding device (31); The unwinding device (31) is used to store the pole piece (1), and the unwinding device (31), the gluing mechanism (11) and the driving device (21) are arranged in sequence.

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