Battery cell encapsulation equipment

Abstract

The utility model provides a kind of battery cell rubber coating equipment, comprising: cutting rubber device, glue supply device and rubber coating device;Cutting rubber device includes first rotating tower, cutting assembly and multiple vacuum suction blocks, cutting assembly is arranged in the side of first rotating tower, multiple vacuum suction blocks are arranged on first rotating tower, and cutting gap is formed between adjacent vacuum suction blocks;Rubber coating device includes second rotating tower and multiple battery cell rubber coating mechanism, second rotating tower is arranged in the side of first rotating tower, multiple battery cell rubber coating mechanism is arranged on second rotating tower, and is sequentially arranged around the rotation axis of second rotating tower.The utility model's battery cell rubber coating equipment relative to prior art, first rotating tower is sequentially transported to first rotating tower and second rotating tower between by the mode of rotation after cutting tape, so that tape is quickly adhered to the battery cell on second rotating tower, improve rubber coating efficiency, effectively speed up production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery cell technology, specifically to a battery cell coating equipment. Background Technology

[0002] In the production process of lithium batteries, the positive electrode of the battery needs to be wrapped with rubber and the current collector needs to be welded. The former is to ensure the insulation of the positive electrode inside the battery and prevent it from contacting the steel shell, while the latter is to connect the positive electrodes of the entire battery cell to form a whole. Both of these processes are indispensable parts of lithium battery production.

[0003] Current coating equipment typically involves conveying battery cells via a conveyor line, then a handling mechanism to transport the cells to the coating mechanism. After coating, the cells are then transported back to the conveyor line. Since each cell needs to be transported back and forth, the efficiency of coating the cells is relatively low. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and provide a battery cell coating equipment.

[0005] One embodiment of the present invention provides a battery cell coating device, comprising: a glue cutting device, a glue supply device, and a coating device;

[0006] The tape cutting device includes a first rotating tower, a cutting component, and multiple vacuum adsorption blocks. The cutting component is disposed on one side of the first rotating tower, and the multiple vacuum adsorption blocks are disposed on the first rotating tower and arranged sequentially around the rotation axis of the first rotating tower. The side of the vacuum adsorption block away from the first rotating tower is provided with multiple adsorption holes for adsorbing tape, and a cutting gap is formed between adjacent vacuum adsorption blocks.

[0007] The adhesive supply device is arranged on one side of the first rotating tower and is used to supply adhesive tape to the vacuum adsorption block;

[0008] The coating device includes a second rotating tower and multiple cell coating mechanisms. The second rotating tower is disposed on one side of the first rotating tower, and the multiple cell coating mechanisms are disposed on the second rotating tower and arranged sequentially around the rotation axis of the second rotating tower. Each cell coating mechanism is provided with a positioning groove for positioning the cell holder.

[0009] In some alternative implementations, the cutting assembly is a laser cutting assembly capable of emitting a cutting laser into the cutting gap.

[0010] In some optional embodiments, the coating device further includes several pressing components, each including a pressing roller and a pressure driving component. The pressing roller is arranged on one side of the vacuum adsorption block, and the pressure driving component is drivenly connected to the pressing roller. Under the drive of the pressure driving component, the pressing roller presses against the side of the vacuum adsorption block having the adsorption hole.

[0011] In some alternative embodiments, the coating device includes a plurality of the adhesive pressing assemblies, which are arranged sequentially around the rotation axis of the first rotating tower.

[0012] In some optional embodiments, the pressure-pressing assembly further includes a movable seat, a floating elastic element, and a connecting seat, the pressure-pressing roller is rotatably disposed on the movable seat, the floating elastic element is connected between the movable seat and the connecting seat, and the pressure-driving assembly is drivenly connected to the connecting seat.

[0013] In some optional embodiments, the movable seat is provided with a plurality of guide posts, the guide posts are movably connected to the connecting seat, and the floating elastic element is a spring, which is sleeved on the guide posts.

[0014] In some optional embodiments, the adhesive supply device includes an adhesive supply base, an adhesive storage mechanism, a web guiding mechanism, and a buffer mechanism. The adhesive storage mechanism is disposed on the adhesive supply base for storing adhesive tape. The web guiding mechanism is disposed on the adhesive supply base and has an adhesive tape positioning space formed thereon. The buffer mechanism includes multiple buffer rollers disposed on the adhesive supply base. The adhesive tape on the adhesive storage mechanism passes sequentially through the positioning space, through the multiple buffer rollers, and then reaches the vacuum adsorption block.

[0015] In some optional embodiments, the glue storage mechanism includes a glue storage wheel, which is rotatably mounted on the glue supply seat;

[0016] The glue supply device further includes a position adjustment mechanism, which is driven and connected to the glue storage wheel, and can drive the glue storage wheel to move in the axial direction of the glue storage wheel.

[0017] In some optional embodiments, the cell coating mechanism includes a guide base, a cup holder, and a coating drive assembly;

[0018] The guide base is provided with a support structure;

[0019] The cup holder is vertically and flexibly mounted on the guide base, the cup holder has the positioning groove, and the cup holder is provided with a lifting drive engagement part;

[0020] The overmolding drive assembly includes a mounting base, a rotary power module, and an active pressure roller. The mounting base is provided with a translational drive mating part. The mounting base can move in a direction close to or away from the support structure. The rotary power module is disposed on the mounting base and is driven and connected to the active pressure roller. The active pressure roller is arranged on one side of the support structure. The positioning groove is located between the active pressure roller and the support structure.

[0021] The guide base is fixed on the second rotating tower, and the mounting base is movably mounted on the second rotating tower. The second rotating tower is provided with a cam, and the cam is provided with a translation guide rail and a lifting guide rail arranged around the cam. The translation drive engagement part is movably engaged with the translation guide rail. When the translation drive engagement part moves along the translation guide rail, it can move in a direction relatively close to or away from the support structure. The lifting drive engagement part is movably engaged with the lifting guide rail. When the lifting drive engagement part moves along the lifting guide rail, it can lift and lower.

[0022] In some alternative embodiments, the support structure is a support bearing, which is rotatably mounted on the guide base.

[0023] Compared with the prior art, in the battery cell coating equipment of this utility model, the first rotating tower sequentially and quickly conveys the cut tape between the first rotating tower and the second rotating tower by rotating, so that the tape is quickly adhered to the battery cell on the second rotating tower, which improves the coating efficiency and effectively speeds up the production efficiency.

[0024] To provide a clearer understanding of this invention, the specific embodiments of this invention will be described below in conjunction with the accompanying drawings. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a battery cell coating device according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the structure of a rubber cutting device according to an embodiment of the present invention;

[0027] Figure 3 for Figure 2 The enlarged view at point A is shown below;

[0028] Figure 4 This is a schematic diagram of the coating device according to an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the adhesive supply device according to an embodiment of the present invention;

[0030] Figure 6This is a schematic diagram of the structure of a battery cell coating mechanism according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the guide base and cup holder of one embodiment of the present invention;

[0032] Figure 8 This is a schematic diagram of the structure of a rubber-coated drive assembly according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the top structure of the guide base and the cup holder fixing seat according to an embodiment of the present invention;

[0034] Figure 10 This is a schematic diagram of one side of the overmolded drive assembly according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 10. Glue cutting device; 11. First rotating tower; 12. Cutting assembly; 13. Vacuum adsorption block; 131. Adsorption hole; 132. Cutting gap; 14. Transmission gear; 20. Glue supply device; 21. Glue supply seat; 22. Glue storage mechanism; 221. Glue storage wheel; 23. Correction mechanism; 231. Belt positioning space; 24. Buffer mechanism; 241. Buffer roller; 25. Position adjustment mechanism; 30. Glue coating device; 40. Second rotating tower; 41. Cam; 42. Lifting guide rail; 50. Battery cell glue coating mechanism; 510. Guide base; 511. Support structure; 512. Substrate; 513. Clearance opening 514. Lifting guide rail; 520. Cup holder fixing seat; 521. Positioning groove; 522. Lifting drive mating part; 523. Guide block; 530. Rubber coating drive assembly; 531. Mounting seat; 532. Rotary power module; 533. Active pressure roller; 534. Translation drive mating part; 535. Auxiliary pressure roller; 540. Translation guide rail; 550. Support seat; 551. Buffer elastic element; 552. Guide shaft; 60. Rubber pressing assembly; 61. Rubber pressing roller; 62. Pressing drive assembly; 63. Movable seat; 64. Floating elastic element; 65. Connecting seat; 66. Guide column; 70. Battery cell cup holder; 71. Battery cell. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model. In the description of the present utility model, unless otherwise stated, "a plurality of" means two or more, and "a number" means one or more. In addition, unless otherwise stated, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In the description of this utility model, references to terms such as "one embodiment," "some alternative implementations," or "some optional embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0041] Please see Figures 1 to 4 This utility model provides a battery cell coating device in one embodiment, including: a glue cutting device 10, a glue supply device 20 and a coating device 30.

[0042] The tape cutting device 10 includes a first rotating tower 11, a cutting assembly 12, and a plurality of vacuum adsorption blocks 13. The cutting assembly 12 is disposed on one side of the first rotating tower 11, and the plurality of vacuum adsorption blocks 13 are disposed on the first rotating tower 11 and arranged sequentially around the rotation axis of the first rotating tower 11. The side of the vacuum adsorption block 13 away from the first rotating tower 11 is provided with a plurality of adsorption holes 131 for adsorbing tape. The adsorption holes 131 of the vacuum adsorption block 13 are connected to a negative pressure generating device, and the negative pressure generating device generates negative pressure at the adsorption holes 131. A cutting gap 132 is formed between adjacent vacuum adsorption blocks 13.

[0043] The adhesive supply device 20 is arranged on one side of the first rotating tower 11 and is used to supply adhesive tape to the vacuum adsorption block 13.

[0044] The coating device 30 includes a second rotating tower 40 and a plurality of battery cell coating mechanisms 50. The second rotating tower 40 is disposed on one side of the first rotating tower 11, and the plurality of battery cell coating mechanisms 50 are disposed on the second rotating tower 40 and arranged sequentially around the rotation axis of the second rotating tower 40. The battery cell coating mechanism 50 is provided with a positioning groove 521 for positioning the battery cell cup 70.

[0045] The working principle of a battery cell coating device according to an embodiment of this utility model is described below:

[0046] The adhesive supply device 20 delivers the adhesive tape to the vacuum adsorption block 13. The negative pressure at the adsorption hole 131 adsorbs the adhesive tape, causing it to adhere to the vacuum adsorption block 13. The rotation of the first rotating tower 11 causes the adhesive tape to move around the first rotating tower 11, making the adhesive tape continuously contact each vacuum adsorption block 13. When the cutting gap 132 moves to the position corresponding to the cutting component 12, the cutting component 12 cuts the adhesive tape. The length of the cut adhesive tape is approximately the same as the distance between the two cutting gaps 132.

[0047] The battery cell cup 70 carrying the battery cell 71 is transported to the positioning groove 521 on the battery cell coating mechanism 50 through the battery cell feeding mechanism. Alternatively, the battery cell cup 70 can be removed from the positioning groove 521 through the battery cell unloading mechanism. When the second rotating tower 40 rotates, the battery cell coating mechanism 50 and the battery cell cup 70 are also driven to rotate.

[0048] When the vacuum adsorption block 13 is moved between the first rotating tower 11 and the second rotating tower 40 by the first rotating tower 11, and when the positioning groove 521 on the cell coating mechanism 50 is moved between the first rotating tower 11 and the second rotating tower 40 by the first rotating tower 11, the adhesive tape on the vacuum adsorption block 13 abuts against the cell 71 on the cell holder 70 in the positioning groove 521, causing the adhesive tape to adhere to the cell 71. Subsequently, the first rotating tower 11 continues to rotate, and the vacuum adsorption block 13 without adhesive tape leaves the first rotating tower 11 and the second rotating tower 40. The first rotating tower 11 rotates to the position corresponding to the glue supply device 20, and the tape re-attaches to the vacuum adsorption block 13. The battery cell 71 with the tape attached is also driven by the second rotating tower 40 to leave the space between the first rotating tower 11 and the second rotating tower 40. Then, the battery cell coating mechanism 50 drives the tape to wrap around the circumference of the battery cell 71 to achieve the coating operation. Then, the coated battery cell 71 leaves the positioning groove 521 along with the battery cell cup 70, and is carried by the next battery cell cup 70 into the positioning groove 521. As the first rotating tower 11 and the second rotating tower 40 continue to rotate, they continuously drive the tape to adhere to the battery cells 71 on the battery cell cups 70 in each positioning groove 521, realizing continuous adhesive and coating operations.

[0049] In some alternative embodiments, the cutting component 12 is a laser cutting component 12, which can emit a cutting laser into the cutting gap 132 to cut the tape, thereby disconnecting the tape on adjacent vacuum adsorption blocks 13 and cutting the tape into segments of the required length.

[0050] In some optional embodiments, the adhesive coating device 30 further includes several adhesive pressing components 60. Each adhesive pressing component 60 includes an adhesive pressing roller 61 and a pressure driving component 62. The adhesive pressing roller 61 is arranged on one side of the vacuum adsorption block 13. The pressure driving component 62 is driven to the adhesive pressing roller 61. Under the drive of the pressure driving component 62, the adhesive pressing roller 61 presses against the side of the vacuum adsorption block 13 with adsorption holes 131, thereby causing the adhesive pressing roller 61 of the adhesive pressing component 60 to apply the adhesive tape to the vacuum adsorption block 13. After the first rotating tower 11 rotates, the adhesive pressing roller 61 rolls the adhesive tape, thereby flattening the adhesive tape and preventing wrinkles from forming. In addition, it should be noted that the adhesive pressing roller 61 presses against the adhesive surface of the adhesive tape. Therefore, the adsorption force of the adhesive tape at the adsorption holes 131 needs to be greater than the adhesive force of the adhesive tape after the adhesive pressing roller 61 contacts the adhesive tape, thereby preventing the adhesive tape from sticking to the adhesive pressing roller 61 and being unable to detach from it.

[0051] The specific structure of the adhesive pressing assembly 60 can be designed according to actual needs. For example, the adhesive pressing assembly 60 can be a screw drive assembly, a rotary motor translation drive assembly, a belt translation drive assembly, a cylinder translation drive assembly, or a linear motor translation drive assembly.

[0052] In some alternative embodiments, the tape-coating device 30 includes a plurality of tape-pressing assemblies 60 arranged sequentially around the rotation axis of the first rotating tower 11. The tape is pressed by the plurality of tape-pressing assemblies 60, which helps to flatten the tape more effectively without wrinkles.

[0053] In some optional embodiments, the adhesive pressing assembly 60 further includes a movable seat 63, a floating elastic element 64, and a connecting seat 65. The adhesive pressing roller 61 is rotatably mounted on the movable seat 63, and the floating elastic element 64 is connected between the movable seat 63 and the connecting seat 65. The pressure driving assembly 62 is driven to connect with the connecting seat 65. The pressure driving assembly 62 drives the connecting seat 65 to move toward the vacuum suction block 13, thereby driving the movable seat 63 and the adhesive pressing roller 61 to move toward the vacuum suction block 13. After the adhesive pressing roller 61 presses the tape onto the vacuum suction block 13, the movable seat 63 stops moving toward the vacuum suction block 13, and the connecting seat 65 presses the floating elastic element 64 toward the movable seat 63. The floating elastic element 64 will undergo elastic deformation, which provides a buffering effect, preventing the adhesive pressing roller 61 from pressing too hard on the tape, causing the tape to completely adhere to the adhesive pressing roller 61 and become unable to detach from it, and also preventing the adhesive pressing roller 61 from excessively damaging the vacuum suction block 13.

[0054] In some optional embodiments, the movable seat 63 is provided with a plurality of guide posts 66, which are movably connected to the connecting seat 65. The guide posts 66 improve the movement stability of the movable seat 63. The floating elastic element 64 is a spring, which is sleeved on the guide posts 66. In this way, when the floating elastic element 64 undergoes elastic deformation, the guide posts 66 guide the direction of elastic deformation of the floating elastic element 64, improve the force stability between the floating elastic element 64, the movable seat 63 and the connecting seat 65, and the guide posts 66 also facilitate the installation of the floating elastic element 64.

[0055] Please see Figure 5In some optional embodiments, the adhesive supply device 20 includes an adhesive supply base 21, an adhesive storage mechanism 22, a web guiding mechanism 23, and a buffer mechanism 24. The adhesive storage mechanism 22 is disposed on the adhesive supply base 21 for storing adhesive tape. The web guiding mechanism 23 is disposed on the adhesive supply base 21 and has an adhesive tape positioning space 231 formed thereon. The buffer mechanism 24 includes multiple buffer rollers 241 disposed on the adhesive supply base 21. The adhesive tape on the adhesive storage mechanism 22 passes sequentially through the positioning space, through the multiple buffer rollers 241, and then reaches the vacuum adsorption block 13. Since the adhesive tape's dispensing position on the adhesive storage mechanism 22 is not fixed, the adhesive tape is not stable immediately after dispensing from the adhesive storage mechanism 22. The multiple buffer rollers 241 can buffer a sufficient length of adhesive tape, increasing the length of the adhesive tape between the vacuum adsorption block 13 and the adhesive storage mechanism 22, thereby improving the stability of the adhesive tape being transported to the vacuum adsorption block 13.

[0056] In some optional embodiments, the glue storage mechanism 22 includes a glue storage wheel 221, which is rotatably mounted on the glue supply seat 21. The glue storage wheel 221 can actively release the glue belt under the drive of the glue storage motor, or it can passively release the glue belt by the force of the glue belt being driven by the first rotating tower 11.

[0057] The glue supply device 20 also includes a position adjustment mechanism 25, which is drivenly connected to the glue storage wheel 221 and can drive the glue storage wheel 221 to move in the axial direction of the glue storage wheel 221. When the tape is dispensed from the glue storage wheel 221, the dispensing position may move in the axial direction of the glue storage wheel 221. The position adjustment mechanism 25 is used to adjust the position of the glue storage wheel 221, thereby adjusting the relative position of the dispensing position and the positioning space.

[0058] In this embodiment, the position adjustment mechanism 25 is an electric cylinder, which is driven by the glue storage wheel 221, thereby driving the glue storage wheel 221 to move. Of course, the position adjustment mechanism 25 can also adopt other suitable translation drive mechanisms.

[0059] The rotation method of driving the first rotating tower 11 and the second rotating tower 40 can be designed according to actual needs. For example, in this embodiment, both the first rotating tower 11 and the second rotating tower 40 are provided with transmission gears 14. The output shafts of the two rotary drive motors mesh with the transmission gears 14 through the drive gears, thereby driving the first rotating tower 11 and the second rotating tower 40 to rotate through the two rotary drive motors.

[0060] Please see Figures 6 to 9 In some optional embodiments, the cell coating mechanism 50 includes a guide base 510, a cup holder 520, and a coating drive assembly 530.

[0061] A support structure 511 is provided on the guide base 510;

[0062] The cup holder 520 is vertically and flexibly mounted on the guide base 510. The cup holder 520 has a positioning groove 521 and a lifting drive engagement part 522.

[0063] The rubber coating drive assembly 530 includes a mounting base 531, a rotary power module 532, and an active pressure roller 533. The mounting base 531 is provided with a translational drive mating part 534. The mounting base 531 can move towards or away from the support structure 511. The rotary power module 532 is mounted on the mounting base 531 and is drivenly connected to the active pressure roller 533. The active pressure roller 533 is arranged on one side of the support structure 511. The positioning groove 521 is located between the active pressure roller 533 and the support structure 511.

[0064] The guide base 510 is fixed on the second rotating tower 40, and the mounting base 531 is movably mounted on the second rotating tower 40. A cam 41 is provided on the second rotating tower 40, and a translation guide rail and a lifting guide rail 42 are arranged around the cam 41. The translation drive engagement part 534 is movably engaged with the translation guide rail, enabling it to move relatively closer to or further away from the support structure 511 when moving along the translation guide rail. The lifting drive engagement part 522 is movably engaged with the lifting guide rail 42, enabling it to lift when moving along the lifting guide rail 42. Through the path design of the translation guide rail and the lifting guide rail 42, the translation drive engagement part 534 can achieve translation when moving along the translation guide rail, and the lifting drive engagement part 522 can achieve lifting when moving along the lifting guide rail 42. This structural design is a technique well-known to those skilled in the art and will not be described in detail here.

[0065] The working principle of the cell coating mechanism 50 is explained below:

[0066] After the tape is applied to the position of the battery cell 71 to be coated, the battery cell cup 70 supporting the battery cell 71 reaches the positioning groove 521. The positioning groove 521 stably positions the battery cell cup 70. The cup fixing seat 520 rises under the drive of the drive component, and the position of the battery cell 71 to be coated reaches one side of the support structure 511. Then the mounting seat 531 moves toward the support structure 511, so that the active pressure roller 533 presses the battery cell 71 toward the support structure 511. The rotation power module 532 drives the active pressure roller 533 to rotate. The active pressure roller 533 drives the battery cell 71 to rotate through the friction between it and the battery cell 71. When the battery cell 71 rotates, the tape will enter between the active pressure roller 533 and the battery cell 71, so that the tape is gradually pressed on the battery cell 71, thereby wrapping the tape around the battery cell 71. Since the support structure 511 and the active pressure roller 533 work together to press the battery cell 71, the tape can then be pressed onto the battery cell 71 stably and quickly, achieving rapid tape wrapping.

[0067] The specific structure of the rotary power module 532 can be designed according to actual needs. For example, the rotary power module 532 is a rotary power motor, and the output shaft of the rotary power motor is driven and connected to the active pressure roller 533.

[0068] In some alternative embodiments, the support structure 511 is a support bearing, which is rotatably mounted on the guide base 510. When the active pressure roller 533 presses the battery cell 71 onto the support bearing and drives the battery cell 71 to rotate, there is rolling friction between the battery cell 71 and the support bearing, which helps to reduce the wear of the battery cell 71 by the support structure 511.

[0069] Please see Figure 10 In some optional embodiments, a base plate 512 is provided on the guide base 510, and the base plate 512 is located above the cup holder 520. The base plate 512 is provided with a clearance opening 513 for the battery cell 71 to pass through. A support structure 511 is provided on the base plate 512, and the support structure 511 and the active pressure roller 533 are respectively located on both sides of the clearance opening 513. After the battery cell cup 70 reaches the positioning groove 521, the battery cell 71 is below the clearance opening 513. Subsequently, after the cup holder 520 rises, the battery cell 71 will pass through the clearance opening 513, so that the position of the battery cell 71 to be coated is above the clearance opening 513. The restriction of the battery cell 71 by the clearance opening 513 makes the battery cell 71 stably positioned and not easy to shake, so that when the active pressure roller 533 presses the battery cell 71 against the support structure 511, the battery cell 71 is not easy to deviate from its position.

[0070] In some optional embodiments, a lifting guide rail 514 is provided on the guide base 510, and multiple guide blocks 523 are provided on the side of the cup holder 520. The multiple guide blocks 523 are arranged sequentially from top to bottom, and the guide blocks 523 slide in cooperation with the lifting guide rail 514. The multiple guide blocks 523 improve the movement stability of the guide base 510. In this embodiment, a lifting drive engagement part 522 is provided on the guide block 523, and each guide block 523 is provided with a lifting drive engagement part 522.

[0071] In some optional embodiments, the overmolding drive assembly 530 further includes an auxiliary pressure roller 535, which is rotatably mounted on the mounting base 531. The auxiliary pressure roller 535 is arranged side by side with the active pressure roller 533. The active pressure roller 533 and the auxiliary pressure roller 535 cooperate to press against the battery cell 71. During overmolding, the active pressure roller 533, the auxiliary pressure roller 535, and the support structure 511 provide three-point support for the battery cell 71, which helps to improve the positioning stability of the battery cell 71. When the active pressure roller 533 drives the battery cell 71 to rotate, the support bearing and the auxiliary pressure roller 535 are both subjected to frictional force with the battery cell 71 and thus rotate. The support bearing and the auxiliary pressure roller 535 both have rolling friction with the battery cell 71, so the battery cell 71 is not easily worn.

[0072] In some optional embodiments, the cell coating mechanism 50 further includes a translation guide rail 540, which is arranged on one side of the guide base 510 and extends toward the support structure 511. The mounting base 531 slides with the translation guide rail 540, thereby improving the movement stability of the mounting base 531. In this embodiment, the translation guide rail 540 is fixed on the main shaft.

[0073] In some optional embodiments, the cell coating mechanism 50 further includes a support base 550 and a buffer elastic member 551. The support base 550 is arranged on one side of the mounting base 531, and the buffer elastic member 551 is disposed between the support base 550 and the mounting base 531. When the mounting base 531 moves away from the support structure 511, the buffer elastic member 551 will be compressed. After the mounting base 531 faces the support structure 511, the elastic force of the buffer elastic member 551 can keep the mounting base 531 pressed against the cell 71. In this embodiment, the support base 550 is fixed on the second rotating tower 40. The elastic force of the buffer elastic member 551 acts on the mounting base 531, thereby facilitating the driving of the translational drive mating part 534 to be pressed tightly into the translational guide rail, so that the translational drive mating part 534 fits tightly against the translational guide rail and is not easy to shake.

[0074] In some optional embodiments, a guide shaft 552 is provided on the support base 550. The guide shaft 552 is slidably engaged with the mounting base 531. The buffer elastic element 551 is a spring. The buffer elastic element 551 is sleeved on the guide shaft 552 and connected to the support base 550 and the mounting base 531 respectively. The guide shaft 552 is beneficial to improving the movement stability of the mounting base 531 and also to improving the stability of the elastic deformation of the buffer elastic element 551, so that the elastic force acts stably on the mounting base 531.

[0075] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery cell coating equipment, characterized in that, include: Glue cutting device, glue supply device, and glue coating device; The tape cutting device includes a first rotating tower, a cutting component, and multiple vacuum adsorption blocks. The cutting component is disposed on one side of the first rotating tower, and the multiple vacuum adsorption blocks are disposed on the first rotating tower and arranged sequentially around the rotation axis of the first rotating tower. The side of the vacuum adsorption block away from the first rotating tower is provided with multiple adsorption holes for adsorbing tape, and a cutting gap is formed between adjacent vacuum adsorption blocks. The adhesive supply device is arranged on one side of the first rotating tower and is used to supply adhesive tape to the vacuum adsorption block; The coating device includes a second rotating tower and multiple cell coating mechanisms. The second rotating tower is disposed on one side of the first rotating tower, and the multiple cell coating mechanisms are disposed on the second rotating tower and arranged sequentially around the rotation axis of the second rotating tower. Each cell coating mechanism is provided with a positioning groove for positioning the cell holder.

2. The battery cell coating equipment according to claim 1, characterized in that: The cutting component is a laser cutting component, which can emit a cutting laser into the cutting gap.

3. The battery cell coating equipment according to claim 1, characterized in that: The coating device further includes several pressing components, each including a pressing roller and a pressure driving component. The pressing roller is arranged on one side of the vacuum adsorption block, and the pressure driving component is drivenly connected to the pressing roller. Under the drive of the pressure driving component, the pressing roller presses against the side of the vacuum adsorption block with the adsorption hole.

4. The battery cell coating equipment according to claim 3, characterized in that: The coating device includes a plurality of the adhesive pressing components, which are arranged sequentially around the rotation axis of the first rotating tower.

5. The battery cell coating equipment according to claim 3, characterized in that: The pressure bonding assembly further includes a movable seat, a floating elastic element, and a connecting seat. The pressure bonding roller is rotatably mounted on the movable seat, the floating elastic element is connected between the movable seat and the connecting seat, and the pressure driving assembly is drivenly connected to the connecting seat.

6. The battery cell coating equipment according to claim 5, characterized in that: The movable seat is provided with several guide posts, which are movably connected to the connecting seat. The floating elastic element is a spring, which is sleeved on the guide posts.

7. A battery cell coating device according to any one of claims 1 to 6, characterized in that: The adhesive supply device includes an adhesive supply base, an adhesive storage mechanism, a web guiding mechanism, and a buffer mechanism. The adhesive storage mechanism is disposed on the adhesive supply base and is used to store the adhesive tape. The web guiding mechanism is disposed on the adhesive supply base and has an adhesive tape positioning space formed thereon. The buffer mechanism includes multiple buffer rollers disposed on the adhesive supply base. The adhesive tape on the adhesive storage mechanism passes sequentially through the positioning space, through the multiple buffer rollers, and then reaches the vacuum adsorption block.

8. The battery cell coating equipment according to claim 7, characterized in that: The glue storage mechanism includes a glue storage wheel, which is rotatably mounted on the glue supply seat; The glue supply device further includes a position adjustment mechanism, which is driven and connected to the glue storage wheel, and can drive the glue storage wheel to move in the axial direction of the glue storage wheel.

9. A battery cell coating device according to any one of claims 1 to 6, characterized in that: The cell coating mechanism includes a guide base, a cup holder, and a coating drive assembly. The guide base is provided with a support structure; The cup holder is vertically and flexibly mounted on the guide base, the cup holder has the positioning groove, and the cup holder is provided with a lifting drive engagement part; The overmolding drive assembly includes a mounting base, a rotary power module, and an active pressure roller. The mounting base is provided with a translational drive mating part. The mounting base can move in a direction close to or away from the support structure. The rotary power module is disposed on the mounting base and is driven and connected to the active pressure roller. The active pressure roller is arranged on one side of the support structure. The positioning groove is located between the active pressure roller and the support structure. The guide base is fixed on the second rotating tower, and the mounting base is movably mounted on the second rotating tower. The second rotating tower is provided with a cam, and the cam is provided with a translation guide rail and a lifting guide rail arranged around the cam. The translation drive engagement part is movably engaged with the translation guide rail. When the translation drive engagement part moves along the translation guide rail, it can move in a direction relatively close to or away from the support structure. The lifting drive engagement part is movably engaged with the lifting guide rail. When the lifting drive engagement part moves along the lifting guide rail, it can lift and lower.

10. A battery cell coating equipment according to claim 9, characterized in that: The support structure is a support bearing, which is rotatably mounted on the guide base.

Images