Rolling glue device and battery cell production equipment

Abstract

The present application discloses a rolling glue sticking device and a battery cell production device, wherein the rolling glue sticking device comprises: a glue sticking roller, the roller surface of which is provided with a convex portion, the convex portion being provided with an adsorption hole; a support roller, the support roller being used to support the material strip; a negative pressure mechanism, the negative pressure mechanism being connected to the adsorption hole to adsorb the adhesive tape; a first driving member, the first driving member being able to drive the glue sticking roller to rotate so that the glue sticking roller is in a first state or a second state; in the first state, the convex portion abuts against the support roller, and in the second state, the convex portion is separated from the support roller. The present application can improve the performance of the material strip glue sticking, and has a simple structure.

Description

Technical Field

[0001] The present application relates to the field of battery production equipment, and specifically to a rolling glue laminating device and battery cell production equipment. Background Art

[0002] The glue laminating process is a commonly used process in the battery production field, which is to stick the tape to the material tape (such as pole pieces, diaphragms) for protection.

[0003] like Figure 1 As shown, the material belt 4 is transported on the pressure roller 2. When the surface of the material belt 4 is glued, the glue roller 1 absorbs the tape and rotates to stick the tape to the material belt 4. When the tape on the glue roller 1 needs to be stuck to the material belt 4, the cylinder 3 is required to drive the pressure roller 2 to abut against the glue roller 1 (at this time, there is actually a material belt 4 between the pressure roller 2 and the glue roller 1), and then the glue roller 1 rotates to stick the tape to the material belt 4 between the glue roller 1 and the pressure roller 2. Since the pressure roller 2 needs to drive the material belt 4 to abut against the glue roller 1, the material belt 4 fluctuates greatly, affecting the glue performance, and the cylinder 3 needs to drive the pressure roller 2 to abut or detach from the surface of the glue roller 1, and the action is complicated.

[0004] Therefore, it is necessary to improve the existing technology and provide a new rolling glue sticking device and battery cell production equipment. Utility Model Content

[0005] One purpose of the present application is to avoid large fluctuations in the material strip 4 during the gluing process and to improve the gluing performance.

[0006] To achieve the above-mentioned purpose, according to a first aspect of the present application, a rolling glue sticking device is provided, comprising:

[0007] A rubber-applying roller, wherein the roller surface of the rubber-applying roller is provided with a convex portion, and the convex portion is provided with a suction hole;

[0008] A support roller, wherein the support roller is used to support the material strip;

[0009] A negative pressure mechanism, the negative pressure mechanism is connected to the adsorption hole to adsorb the adhesive tape;

[0010] a first driving member, wherein the first driving member can drive the rubber-applying roller to rotate so that the rubber-applying roller is in a first state or a second state;

[0011] In the first state, the convex portion abuts against the support roller, and in the second state, the convex portion is separated from the support roller.

[0012] Optionally, the rolling glue-applying device further comprises an elastic member, wherein the elastic member is connected to the support roller, and in the first state, the convex portion presses the support roller so that the axis of the support roller moves away from the axis of the glue-applying roller, and the elastic member generates an elastic force, and in the second state, the elastic force resets the support roller.

[0013] Optionally, the first driving member drives the adhesive roller to rotate so that the linear speed of the adhesive tape adsorbed by the adsorption holes is equal to the conveying speed of the material tape.

[0014] Optionally, the convex portion includes an arc-shaped boss, and the arc-shaped boss is detachably connected to the glue-applying roller.

[0015] Optionally, the adsorption hole includes a first adsorption hole, the first adsorption hole is opened on the arc-shaped boss, and the first adsorption hole is connected to the negative pressure mechanism.

[0016] Optionally, a roller surface of the rubber-applying roller is provided with an adsorption channel, the arc-shaped boss covers the adsorption channel, the adsorption channel is communicated with the first adsorption hole, and the negative pressure mechanism is communicated with the adsorption channel.

[0017] Optionally, a vacuum hole is provided on the end surface of the glue-applying roller, the axis of the vacuum hole is coaxial with the axis of the glue-applying roller, and the vacuum hole is communicated with the adsorption channel.

[0018] Optionally, the convex portion further includes an arc-shaped suction cup, which is made of a polyurethane material and is disposed on the arc-shaped boss by a rubber encapsulation process.

[0019] Optionally, the adsorption hole further includes a second adsorption hole, the second adsorption hole is opened in the arc-shaped suction cup, and the second adsorption hole is connected to the first adsorption hole.

[0020] Optionally, the rolling glue application device may further include a glue preparation mechanism, and the glue preparation mechanism is used to place a section of adhesive tape on the convex portion.

[0021] According to a second aspect of the present application, a battery cell production device is provided, comprising a rolling glue laminating device as described in any of the preceding items.

[0022] The rolling glue-applying device in the embodiment of the present application utilizes the convex portion of the glue-applying roller to absorb the adhesive tape and stick the adhesive tape to the material tape during the rotation of the glue-applying roller. During the conveyance of the material tape, the material tape does not need to approach the glue-applying roller, so the material tape will not produce large fluctuations, thereby ensuring the glue-applying performance.

[0023] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0025] Figure 1 It is a working principle diagram of a rolling glue sticking device in the prior art.

[0026] Figure 2 It is a stereoscopic diagram of the rolling glue application device in the first embodiment of the present application.

[0027] Figure 3 It is a front view of the rubber-coating roller in the first embodiment of the present application.

[0028] Figure 4 It is a top view of the rubber-coating roller in the first embodiment of the present application.

[0029] Figure 5 is along Figure 4 Sectional view along line AA.

[0030] Figure 6 This is a working principle diagram of a rolling glue-applying device according to an embodiment of the present application, in which the glue-applying roller is in the second state.

[0031] Figure 7 This is a working principle diagram of a rolling glue-applying device according to an embodiment of the present application, in which the glue-applying roller is in a first state.

[0032] Figure 8 This is another working principle diagram of the rolling glue application device of an embodiment of the present application, and the glue application roller is in the first state at this time.

[0033] Fig. 9 It is a stereoscopic diagram of the rolling glue application device of the second embodiment of the present application.

[0034] Description of reference numerals:

[0035] 1. Glue-applying roller; 2. Pressure roller; 3. Cylinder; 4. Material belt; 5. Roller surface; 501. Adsorption channel; 6. Protrusion; 601. Arc-shaped boss; 602. Arc-shaped suction cup; 7. Adsorption hole; 701. First adsorption hole; 702. Second adsorption hole; 8. Support roller; 9. First driving member; 10. Elastic member; 11. End face; 12. Vacuum hole; 13. Glue preparation mechanism; 14. First mounting plate; 15. Second mounting plate; 16. Third mounting plate. DETAILED DESCRIPTION

[0036] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0038] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0039] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0040] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0041] In the following description, each driving member can adopt a power source such as a cylinder, a motor, etc., and a transmission method such as a piston transmission, a gear rack transmission, etc.

[0042] In the following description, the material strip 4 is only used to describe the working principle of the rolling glue laminating device and the battery cell winding device, and should not be regarded as a part of any mechanism, device or equipment.

[0043] like Figure 2 As shown, the rolling glue application device in the first embodiment of the present application includes: a glue application roller 1, a support roller 8, a negative pressure mechanism (not shown in the figure) and a first driving member 9. Among them, the roller surface 5 of the glue application roller 1 is provided with a convex portion 6, and the convex portion 6 is provided with an adsorption hole 7. The support roller 8 is used to support the material strip 4. The negative pressure mechanism is connected to the adsorption hole 7 to adsorb the adhesive tape. The first driving member 9 can drive the glue application roller 1 to rotate so that the glue application roller 1 is in a first state or a second state. As shown in FIG. Figure 7 As shown, in the first state, the convex portion 6 abuts against the support roller 8. Figure 6 As shown, in the second state, the projection 6 is separated from the support roller 8 .

[0044] More specifically, the glue roller 1 can be mounted on the first mounting plate 14 through a bracket, and the glue roller 1 can rotate. The roller surface 5 of the glue roller 1 can be provided with a convex portion 6 by an integral molding method. For example, the roller surface 5 of the glue roller 1 itself has a cam shape, or the convex portion 6 can be a separate component, which is mounted on the glue roller 1 by welding, riveting, bolting, etc. The convex portion 6 is provided with an adsorption hole 7 for adsorbing the adhesive tape, and the adhesive side of the adhesive tape is away from the adsorption hole 7 during adsorption. The adsorption hole 7 can be a single hole or a plurality of holes connected to each other. For example, when the roller surface 5 of the glue roller 1 forms the convex portion 6 by an integral molding method, the adsorption hole 7 can be a through hole that runs through the entire convex portion 6, and in the split convex portion 6 described below, the adsorption hole 7 can be formed by connecting the first adsorption hole 701 with the second adsorption hole 702. The support roller 8 is mounted on the second mounting plate 15 for supporting the material tape 4, and the support roller 8 is arranged opposite to the glue roller 1. Figure 1 Unlike the pressing roller 2 in the embodiment, before the adhesive is applied, the supporting roller 8 will not be driven but will actively abut against the adhesive tape roller 1. The negative pressure mechanism is connected to the adsorption hole 7. When the negative pressure mechanism is working, the adsorption hole 7 will generate suction to adsorb the adhesive tape. The first driving member 9 can drive the adhesive tape roller 1 to rotate by means of a motor shaft drive, a cylinder with a multi-link drive, etc., so that the adhesive tape roller 1 is in the first state or the second state. Figure 6 As shown in the second state, the convex portion 6 is separated from the support roller 8, and the entire roller surface 5 and the convex portion 6 do not contact the support roller 8. At this time, the material strip 4 is normally transported on the support roller 8. When the material strip 4 reaches the position where the glue is required, the first driving member 9 drives the glue roller 1 to rotate clockwise, and enters the state as shown in FIG. Figure 7In the first state shown, the convex portion 6 abuts against the support roller 8, and the adhesive tape is attached to the material belt 4, and the negative pressure mechanism stops working. After the gluing is completed, the gluing roller 1 continues to rotate and enters the second state, and the convex portion 6 will not affect the continued conveying of the material belt 4. It can be seen from the above description that in the entire gluing process, the material belt 4 does not need to approach the gluing roller 1 before gluing, and the material belt 4 will not be pulled toward the gluing roller 1 by the support roller 8. The material belt 4 can be smoothly conveyed on the support roller 8, so there will be no large fluctuations, ensuring the gluing performance and improving the gluing efficiency. In addition, since the support roller 8 does not need to actively approach the gluing roller 1, the number of driving mechanisms is reduced, the structure is simplified, and the cost is reduced. In the present application, although there is a material belt 4 between the convex portion 6 and the support roller 8 when the convex portion 6 abuts against the support roller 8, because the thickness of the material belt 4 can be basically ignored, and the convex portion 6 and the support roller 8 need to apply a certain extrusion force to the material belt 4 for gluing, it is still regarded as that the convex portion 6 is abutted against the support roller 8. Therefore, "abutment" includes two situations, one is that when there is no material belt 4, the convex part 6 can directly abut the support roller 8, and the other is that when there is a material belt 4, the convex part 6 can indirectly abut the support roller 8 through the material belt 4. Both situations fall within the protection scope of this application. In this application, the first mounting plate 14 and the second mounting plate 15 can be separate plates, or they can be formed by bending, punching, etc. of a whole plate, or they can be part of the wall plate of the mechanical equipment. As long as they can play the role of installing the rubber roller 1 and the support roller 8, this application does not make specific restrictions.

[0045] like Figure 2 and Figure 8 As shown, the rolling glue-applying device further comprises an elastic member 10. The elastic member 10 is connected to the support roller 8. In the first state, the convex portion 6 presses the support roller 8 so that the axis of the support roller 8 is away from the axis of the glue-applying roller 1, and the elastic member 10 generates an elastic force. In the second state, the elastic force resets the support roller 8.

[0046] Specifically, the elastic member 10 can be a cylinder, a coil spring or the like. For example, the elastic member 10 is a cylinder, the support roller 8 is mounted on the third mounting plate 16, the third mounting plate 16 is movably matched with the second mounting plate 15 by means of a slide rail, a guide rod or the like, and the piston rod of the cylinder is connected to the third mounting plate 16. The piston rod of the cylinder is normally kept in an extended state, at which time the axis of the support roller 8 and the axis of the rubber-applying roller 1 are kept in a relatively close position, such as Figure 8 The position of the support roller 8 is indicated by the solid line in FIG. After the rubber-coating roller 1 rotates into the first state, the convex portion 6 presses the support roller 8, so that the axis of the support roller 8 is away from the axis of the rubber-coating roller 1, and the support roller 8 enters the first state. Figure 8The position is shown by the dotted line. Due to the low pressure of the convex part 6, the piston rod of the cylinder contracts and the cylinder generates elastic force. After the glue application is completed, the glue application roller 1 enters the second state, the convex part 6 no longer presses the support roller 8, and the elastic force of the cylinder makes the support roller 8 approach the glue application roller 1 again and reset to the position shown in the dotted line. Figure 8 It should be noted that although the cylinder is still used as the elastic member 10, Figure 1 Unlike the cylinder 3 in the embodiment, when gluing, the elastic member 10 itself does not have the function of actively driving the support roller 8 to approach the gluing roller 1, but only provides a certain amount of floating for the support roller 8 to ensure that the force on the material strip 4 is uniform and of appropriate size, which belongs to passive elastic force adjustment, so there is no need for complex drive control, which ensures the simplification of the gluing performance and structure. In other words, the elastic member 10 uses the structure of the cylinder spring. It is a common structure to use the elastic member 10 to provide elastic force to a certain structure to reset it. The sliding structure described above is only one of them. Those skilled in the art can use other structures to realize the reset function of the elastic member 10 on the support roller 8, such as using the compression spring form or the tension spring form of the spiral spring, which will not be described in detail herein. In other embodiments of the present application, the elastic member 10 may not exist, that is, the support roller 8 is not floating but fixed. At this time, it is necessary to ensure that when the convex portion 6 is gluing the material strip 4, the pressure applied by the convex portion 6 and the support roller 8 to the material strip 4 is just appropriate, or in other words, the convex portion 6 and the support roller 8 are just in contact with each other.

[0047] In this embodiment, the first driving member 9 drives the adhesive tape roller 1 to rotate so that the linear speed of the adhesive tape adsorbed by the adsorption holes 7 is equal to the conveying speed of the material tape 4 .

[0048] Specifically, taking the first driving member 9 as an example, the first driving member 9 is mounted on the first mounting plate 14, and the rotating shaft of the first driving member 9 is connected to the glue-applying roller 1. The speed of the motor is controllable, so the speed of the glue-applying roller 1 can be controlled, thereby ensuring that the tape adsorbed by the adsorption hole 7 is equal to the conveying speed of the material belt 4 when the glue-applying roller 1 rotates. In this way, the glue-applying can be performed during the conveying process of the material belt 4 without stopping the conveying of the material belt 4 or reducing the conveying speed, thereby ensuring production efficiency.

[0049] like Figures 3 to 9 As shown, in the embodiment of the present application, the convex portion 6 and the adhesive roller 1 are designed to be split. The convex portion 6 includes an arc-shaped boss 601, and the arc-shaped boss 601 is detachably connected to the adhesive roller 1.

[0050] Specifically, the shape of the inner surface of the arc-shaped boss 601 matches the shape of the roller surface 5 of the rubber-applying roller 1, and the arc-shaped boss 601 is fastened to the rubber-applying roller 1 by bolts, or connected to the rubber-applying roller 1 by means of bayonet pins, etc. When a change of type is required, for example, when the distance between the axis of the rubber-applying roller 1 and the axis of the supporting roller 8 needs to be adjusted, or when the length of the applied tape needs to be adjusted, the bolts can be loosened or the bayonet pins can be pulled out, and the arc-shaped boss 601 can be removed from the rubber-applying roller 1, and the arc-shaped boss 601 can be replaced without disassembling the rubber-applying roller 1, thereby improving the speed of change of type and reducing the manufacturing cost.

[0051] like Figure 5 As shown, the adsorption hole 7 includes a first adsorption hole 701 , which is opened on the arc-shaped boss 601 , and the first adsorption hole 701 is connected to the negative pressure mechanism.

[0052] Specifically, since the arc-shaped boss 601 is a separate structural member, the first adsorption holes 701 can be processed on the arc-shaped boss 601. The size and density of the first adsorption holes 701 can be different to meet the adsorption force requirements of different tapes. When the negative pressure mechanism is working, the first adsorption holes 7 generate adsorption force to adsorb the tape.

[0053] like Figure 5 As shown, in this embodiment, the roller surface 5 of the glue-applying roller 1 is provided with an adsorption channel 501 , the arc-shaped boss 601 covers the adsorption channel 501 , the adsorption channel 501 is connected to the first adsorption hole 701 , and the negative pressure mechanism is connected to the adsorption channel 501 .

[0054] Specifically, since only the convex portion 6 plays a role in gluing, there is no need to open the adsorption hole 7 for the entire roller surface 5 of the gluing roller 1. During processing, it is only necessary to process the adsorption channel 501 on a part of the roller surface 5. When the arc-shaped boss 601 is connected to the gluing roller 1, the arc-shaped boss 601 covers the adsorption channel 501, and at the same time ensures that the adsorption channel 501 is connected to the first adsorption hole 701, which reduces the processing difficulty of the gluing roller 1. When the negative pressure mechanism is working, the negative pressure mechanism draws negative pressure to the first adsorption hole 701 through the adsorption channel 501, so that the first adsorption hole 701 can adsorb the tape.

[0055] like Figure 2 , Figure 3 and Figure 5 As shown, in this embodiment, a vacuum hole 12 is provided on the end surface 11 of the glue-applying roller 1 , the axis of the vacuum hole 12 is coaxial with the axis of the glue-applying roller 1 , and the vacuum hole 12 is connected to the adsorption channel 501 .

[0056] Specifically, the axis of the vacuum hole 12 is coaxial with the axis of the adhesive roller 1, so that when the adhesive roller 1 rotates, the negative pressure mechanism can continuously and stably provide negative pressure to the adsorption hole 7. When the negative pressure mechanism is working, the airflow near the first adsorption hole 701 enters the negative pressure mechanism through the first adsorption hole 701, the adsorption channel 501, and the vacuum hole 12, thereby adsorbing the adhesive tape.

[0057] like Figures 3 to 8 As shown, in this embodiment, the protrusion 6 further includes an arc-shaped suction cup 602 , which is made of polyurethane material and is disposed on the arc-shaped boss 601 through a rubber encapsulation process.

[0058] Specifically, the arc-shaped suction cup 602 is made of polyurethane material, so it has a certain elasticity, which can avoid damage to the material strip 4. The arc-shaped suction cup 602 is arranged on the arc-shaped boss 601 through a rubber coating process, so it can also be regarded as a part of the arc-shaped boss 601.

[0059] like Figure 5 As shown, the adsorption hole 7 further includes a second adsorption hole 702 . The second adsorption hole 702 is opened in the arc-shaped suction cup 602 , and the second adsorption hole 702 is connected to the first adsorption hole 701 .

[0060] Specifically, the second adsorption hole 702 is provided in the arc-shaped suction cup 602, the second adsorption hole 702 is connected to the first adsorption hole 701, the first adsorption hole 701 is connected to the adsorption channel 501, the adsorption channel 501 is connected to the vacuum hole 12, and the vacuum hole 12 is connected to the negative pressure mechanism. When the negative pressure mechanism is working, the airflow near the second adsorption hole 702 enters the negative pressure mechanism through the first adsorption hole 701, the adsorption channel 501, and the vacuum hole 12, thereby adsorbing the tape.

[0061] like Fig. 9 As shown, in the second embodiment of the present application, the rolling glue application device further includes a glue preparation mechanism 13 , and the glue preparation mechanism 13 is used to place a section of adhesive tape on the convex portion 6 .

[0062] Specifically, the adhesive preparation mechanism 13 can be driven by multiple driving members such as the second driving member, and a section of the adhesive tape on the tape roll is pulled out so that the adhesive-free surface of the adhesive tape is adsorbed by the adsorption holes 7, and then the cutter cuts the adhesive tape. When the adhesive roller 1 is in the second state, the adhesive preparation mechanism 13 places a section of the adhesive tape on the convex portion 6, and the adsorption holes 7 of the convex portion 6 adsorb the adhesive tape. As the adhesive roller 1 rotates, it enters the first state and adheres the adhesive tape to the material belt 4.

[0063] During the production of battery cells, when no glue is required, the glue roller 1 remains in the second state, and the material strip 4 is normally conveyed along the conveying direction under the support of the support roller 8. In the second state, the glue preparation mechanism 13 places a section of the tape on the convex portion 6, the negative pressure mechanism works, and the adsorption hole 7 of the convex portion 6 adsorbs a section of the tape to prepare for the next glue application. When the material strip 4 reaches the position where glue application is required, the first driving member 9 drives the glue roller 1 to rotate, the convex portion 6 begins to abut against the support roller 8 to enter the first state, and the tape is affixed to the material strip 4. The negative pressure mechanism stops working, the glue roller 1 continues to rotate, the convex portion 6 is separated from the support roller 8, the glue roller 1 enters the second state, and the material strip 4 continues to be conveyed forward with the tape. During the glue application process, if the support roller 8 is subjected to too much pressure from the convex portion 6, it can move in the direction away from the glue roller 1. After the glue application is completed, the convex portion 6 no longer abuts against the support roller 8. Under the elastic force of the elastic member 10, the support roller 8 moves toward the direction close to the glue roller 1 and resets.

[0064] According to the second aspect of the embodiment of the present application, a battery cell production device is also provided, including a rolling glue sticking device as described in any of the preceding items. After the material strip 4 is glued, it can continue to be transported and finally wound by a winding mechanism to produce a battery cell. The battery cell production device has the advantages of good glue sticking performance, high efficiency, simple structure, and low cost due to the use of the above-mentioned rolling glue sticking device.

[0065] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0066] Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are only for illustration, not for limiting the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. A rolling glue sticking device, characterized in that: include: A rubber-applying roller, wherein the roller surface of the rubber-applying roller is provided with a convex portion, and the convex portion is provided with a suction hole; A support roller, wherein the support roller is used to support the material strip; A negative pressure mechanism, the negative pressure mechanism is connected to the adsorption hole to adsorb the adhesive tape; a first driving member, wherein the first driving member can drive the rubber-applying roller to rotate so that the rubber-applying roller is in a first state or a second state; In the first state, the convex portion abuts against the support roller, and in the second state, the convex portion is separated from the support roller.

2. The rolling glue sticking device according to claim 1, characterized in that: It also includes an elastic member, which is connected to the support roller. In the first state, the convex portion presses the support roller to move the axis of the support roller away from the axis of the rubber roller. The elastic member generates an elastic force. In the second state, the elastic force resets the support roller.

3. The rolling glue sticking device according to claim 1, characterized in that: The first driving member drives the adhesive roller to rotate so that the linear speed of the adhesive tape adsorbed by the adsorption holes is equal to the conveying speed of the material tape.

4. The rolling glue sticking device according to claim 1, characterized in that: The convex portion comprises an arc-shaped boss, and the arc-shaped boss is detachably connected to the glue-applying roller.

5. The rolling glue sticking device according to claim 4, characterized in that: The adsorption hole includes a first adsorption hole, the first adsorption hole is opened on the arc-shaped boss, and the first adsorption hole is connected to the negative pressure mechanism.

6. The rolling glue sticking device according to claim 5, characterized in that: The roller surface of the rubber-applying roller is provided with an adsorption channel, the arc-shaped boss covers the adsorption channel, the adsorption channel is communicated with the first adsorption hole, and the negative pressure mechanism is communicated with the adsorption channel.

7. The rolling glue sticking device according to claim 6, characterized in that: A vacuum hole is provided on the end surface of the glue-applying roller, the axis of the vacuum hole is coaxial with the axis of the glue-applying roller, and the vacuum hole is communicated with the adsorption channel.

8. The rolling glue sticking device according to claim 5, characterized in that: The convex portion further comprises an arc-shaped suction cup, which is made of a polyurethane material and is arranged on the arc-shaped boss through a rubber coating process.

9. The rolling glue sticking device according to claim 8, characterized in that: The adsorption hole further includes a second adsorption hole, which is opened in the arc-shaped suction cup and communicates with the first adsorption hole.

10. The rolling glue sticking device according to claim 1, characterized in that: It also includes a glue preparation mechanism, which is used to place a section of adhesive tape on the convex part.

11. A battery cell production device, characterized in that: include: A rolling glue application device according to any one of claims 1 to 10.

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