CN218548512U - Battery cell film coating fixing mechanism - Google Patents

Abstract

The application relates to the technical field of electric core production equipment, in particular to electric core diolame fixed establishment, including portable setting and be used for bearing the carrier assembly of electric core and protection film and set up in locating component on carrier assembly's the removal route be provided with on the carrier assembly and compress tightly the subassembly. Fix a position the electric core on the carrier assembly through locating component, ensure the position accuracy between electric core and the protection film, and separately set up with the carrier assembly through locating component, and then can cyclic utilization locating component fix a position electric core, greatly reduced the cost of equipment, fixed establishment's structure has been simplified simultaneously, therefore, the production installation and debugging are convenient for, the in-process that the carrier assembly removed next station, it is fixed to last to compress tightly electric core and protection film through compressing tightly the subassembly, electric core and protection film can not take place to remove when guaranteeing to remove, improve the position accuracy between electric core and the protection film, the diolame precision has further been guaranteed.

Description

Battery cell film coating fixing mechanism

Technical Field

The application relates to the technical field of battery cell production equipment, in particular to a battery cell film coating fixing mechanism.

Background

In the production process of the battery core, the periphery of the battery core is required to be wrapped with the protective film, the protective film of the battery core is a key process, the wrapping quality of the protective film has important influence on the performance and the safety of the battery core, and therefore the accuracy of the relative position of the protective film and the battery core is required to be ensured in the film wrapping process. In the existing production, the battery core and the protective film are fixed through a coating clamp with fixed positions. However, in the prior art, in order to fix the battery cell and the protective film, clamping mechanisms are usually arranged on the film coating clamp in the front and back direction, the left and right direction and the up and down direction of the battery cell, and a plurality of clamping mechanisms are arranged on the film coating clamp, so that the structure is very complex, and the installation and debugging difficulty and the cost are greatly increased.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the present application provides a cell envelope fixing mechanism, which includes a bearing assembly movably disposed and used for bearing a cell and a protective film, and a positioning assembly disposed on a moving path of the bearing assembly and used for positioning the cell on the bearing assembly; and the pressing assembly is arranged on the bearing assembly and used for clamping and fixing the battery cell and the protective film. Fix a position the electric core on the carrier assembly through locating component, ensure the position accuracy between electric core and the protection film, and separately set up with the carrier assembly through locating component, and then can cyclic utilization locating component fix a position electric core, greatly reduced the cost of equipment, fixed establishment's structure has been simplified simultaneously, therefore, the production installation and debugging are convenient for, move the in-process of next station at the carrier assembly, it is fixed to last compressing tightly electric core and protection film through compressing tightly the subassembly, ensure that electric core and protection film can not take place to remove, improve electric core and protection film relative position accuracy, the diolame precision has further been guaranteed.

Preferably, the device further comprises a displacement driving assembly for driving the bearing assembly, and the positioning assemblies are arranged on two opposite sides of the moving path of the bearing assembly. And then fix a position the electric core on the carrier assembly through the locating component who sets up in both sides, wherein locating component's quantity can be according to the quantity of electric core on the carrier assembly and decide to the realization carries out simultaneous processing to a plurality of electric cores, improves production efficiency.

Preferably, the bearing assembly comprises a support plate and at least one group of bearing tables arranged on the support plate, and the bearing surfaces of the bearing tables are provided with adsorption assemblies. An exemplary suction assembly may be a suction cup, and after the protective film is placed on the carrier, a vacuum is formed through the suction cup to fix the protective film on the carrier.

Preferably, the pressing assembly comprises a guide plate arranged on the bearing assembly, a pressing plate in sliding connection with the guide plate, and a first driving assembly for driving the pressing plate to move towards the battery core, and the pressing plate is in sliding fit with the driving end of the first driving assembly. And then when first drive assembly drive clamp plate moves down, the clamp plate moves along the horizontal direction simultaneously under the guide effect of deflector, and then makes the clamp plate move to the top of electric core along the horizontal direction when pushing down the removal, and final clamp plate pushes down and acts on electric core, realizes compressing tightly fixedly electric core and protection film on the carrier assembly.

Preferably, the guide plate is provided with a guide groove, and the pressing plate is provided with a cam follower which is slidably connected with the guide groove. Cam follower can slide along the guide way, and then the clamp plate is pushing down the in-process that removes, and cam follower passes through the guide way and drives the clamp plate and remove at the horizontal direction to realize through horizontal migration that the clamp plate removes the top to electric core. When the first driving assembly drives the pressing plate to ascend, the pressing plate moves towards one side far away from the battery core synchronously through the cooperation of the cam follower and the guide groove, and therefore the battery core feeding and discharging are avoided.

Preferably, the positioning assembly comprises a support table, a positioning plate slidably disposed on the support table, and a second driving assembly for driving the positioning plate to move toward the battery core. After the bearing assembly moves in place, the second driving assembly drives the positioning plate to move towards the battery core on the bearing assembly, and then the positioning plate pushes the battery core to realize positioning of the battery core. The number of the positioning assemblies can be determined according to the number of the battery cells on the bearing assembly.

Preferably, the supporting plate is provided with a first connecting plate and a second connecting plate for mounting the pressing assembly, and a third driving assembly for driving the first connecting plate and the second connecting plate to approach or move away from each other. And then through first connecting plate of third drive assembly drive and second connecting plate remove in opposite directions or keep away from, and then can realize adjusting the position of compressing tightly the subassembly for the plummer, and then can adjust the position that compresses tightly the subassembly according to the size of electric core, realize accurately compressing tightly in electric core.

Preferably, an end fixing part is arranged on the first connecting plate or the second connecting plate, an end bearing part is arranged on the second connecting plate or the first connecting plate, and the end fixing part and the end bearing part are respectively positioned on two opposite sides of the bearing table. Specifically, the end fixing piece is used for fixing a top cover at the end of the battery cell, and a clearance groove of a top cover pole is formed in the middle of the end fixing piece. The end bearing part is used for bearing the connecting sheet or the lug and preventing the connecting sheet or the lug from bending and deforming.

Preferably, the battery pack further comprises a hot melting assembly arranged on a moving path of the bearing assembly, and the hot melting assembly comprises a hot melting device and a fourth driving assembly for driving the hot melting head to move towards the battery core. The fourth driving assembly drives the hot melting device to move towards the bottom of the battery core, and then the hot pressing head of the hot melting device is used for hot pressing the protective film and the bottom of the battery core.

Preferably, the hot melting assembly is further provided with a blowing assembly arranged towards the battery cell. Exemplarily, the air blowing assembly can be an air blowing plate, an air blowing opening of the air blowing plate faces to the protective film and the battery core, and then the hot melt device and the protective film are separated through the air blowing assembly, so that the hot melt device is prevented from being adhered to the protective film.

Compared with the prior art, the beneficial effects of this application are: this application is through setting up portable and be used for bearing the weight of the carrier assembly of electric core and protection film, set up locating component on carrier assembly's removal route, carrier assembly fixes a position the electric core on the carrier assembly through locating component after removing locating component's position, ensure the position accuracy between electric core and the protection film, be provided with on carrier assembly and compress tightly the subassembly, accomplish to electric core and compress tightly in the electric core to carrier assembly through compressing tightly the subassembly after the location, and then fix electric core and protection film on the carrier assembly, after locating component resets and then carrier assembly removes next processing station, next carrier assembly moves again and carries out electric core location on locating component's position, set up separately through locating component and carrier assembly, and then can cyclic utilization locating component fixes a position electric core, greatly reduced the cost of equipment, the overall structure has been simplified simultaneously, the cost is reduced, be convenient for production installation and debugging. Meanwhile, in the process that the bearing assembly moves to the next station, the battery core and the protective film are continuously compressed and fixed through the compressing assembly, the battery core and the protective film are prevented from moving, the accuracy of the relative positions of the battery core and the protective film is improved, and the film coating precision is further guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments of the present application or the prior art will be briefly described below. It should be apparent that the drawings in the following description are only some of the embodiments of the present application, and that other drawings may be derived by those skilled in the art without inventive exercise.

Fig. 1 is an overall schematic diagram of a battery cell envelope fixing mechanism according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a hold-down assembly according to an embodiment of the present disclosure;

FIG. 3 is a schematic view of a heat stake assembly and a positioning assembly in accordance with an embodiment of the present application;

FIG. 4 is a bottom view of a load bearing assembly according to an embodiment of the present application;

fig. 5 is a perspective view of a cell capsule fixing mechanism according to an embodiment of the present application.

Reference numerals

10. A carrier assembly; 11. a displacement drive assembly; 12. a bearing table; 13. a support plate; 14. an adsorption component; 20. a compression assembly; 21. pressing a plate; 22. a first drive assembly; 23. a guide plate; 24. a guide groove; 25. a cam follower; 26. a slide rail; 30. a positioning assembly; 31. positioning a plate; 32. a second drive assembly; 33. a support table; 41. a first connecting plate; 42. a second connecting plate; 43. a third drive assembly; 44. an end carrier; 45. an end fixture; 50. a hot melt assembly; 51. a hot melting head; 52. a fourth drive assembly; 53. and a blowing assembly.

Detailed Description

In the following description, numerous implementation details are set forth in order to provide a thorough understanding of the present invention. It should be understood, however, that these implementation details should not be used to limit the application. That is, in some embodiments of the present application, such practical details are not necessary. In addition, some conventional structures and components are shown in simplified schematic form in the drawings for the sake of simplicity.

It should be noted that all the directional indicators in the embodiments of the present application, such as up, down, left, right, front, and back, 8230, are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture as shown in the drawings, and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in this application are for descriptive purposes only, not specifically referring to the order or sequence, nor are they intended to limit the application, but merely to distinguish components or operations described in the same technical terms, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

For a further understanding of the content, nature and function of the present application, reference should be made to the following examples, which are to be read in conjunction with the accompanying drawings, wherein:

in order to solve the above technical problem, this embodiment provides a cell envelope fixing mechanism, as shown in fig. 1, the cell envelope fixing mechanism includes a bearing assembly 10 that is movably disposed and used for bearing a cell and a protective film, and a positioning assembly 30 that is disposed on a moving path of the bearing assembly 10, after the protective film and the cell are sequentially placed on the bearing assembly 10, the bearing assembly 10 moves to a position of the positioning assembly 30, and then the cell on the bearing assembly 10 is positioned by the positioning assembly 30, so as to ensure position accuracy between the cell and the protective film, a pressing assembly 20 is disposed on the bearing assembly 10, after the cell is positioned, the cell is pressed onto the bearing assembly 10 by the pressing assembly 20, and then the cell and the protective film on the bearing assembly 10 are fixed, after the positioning assembly 30 is reset, the bearing assembly 10 moves to a next processing station, the next bearing assembly 10 moves to a position of the positioning assembly 30 for positioning, the positioning assembly and the bearing assembly 10 are separately disposed, so as to recycle the positioning assembly to position the cell, thereby greatly reducing cost of the equipment, and simultaneously simplifying a structure of the fixing mechanism, facilitating production, installation and debugging, facilitating a process of the cell envelope assembly 10 moving to a process, and further improving accuracy of the cell and a protection film.

Specifically, in order to realize that the bearing component 10 is driven to move, the bearing component 10 can be installed on the displacement driving component 11, the exemplary displacement driving component 11 can be driven by a linear sliding table mechanism or a motor screw rod structure and the like, and then the bearing component 10 is driven to move along a set route, so that the battery core and the protective film are shifted between the positioning station, the film coating station, the loading and unloading station and the like, and the battery core is processed. Wherein, bearing assembly 10 can place one, two or more electric cores, and then realizes carrying out simultaneous processing to a plurality of electric cores, improves production efficiency. For this reason, the positioning assemblies 30 are disposed on two opposite sides of the moving path of the carrier assembly 10, and then the electric cores on the carrier assembly 10 are positioned by the positioning assemblies 30 disposed on the two sides, wherein the number of the positioning assemblies 30 can be determined according to the number of the electric cores on the carrier assembly 10, so that a plurality of electric cores are simultaneously processed, and the production efficiency is improved. The positioning component and the bearing component 10 are separately arranged, so that the positioning component can be recycled to position the battery cell, the cost of equipment is greatly reduced, the structure of the fixing mechanism is simplified, the cost is reduced, the production, the installation and the debugging are convenient,

in the above solution, in order to implement the carrying of the electrical core, as a preferred embodiment, the carrying assembly 10 includes a supporting plate 13 and at least one group of carrying tables 12 disposed on the supporting plate 13, during the carrying, the protective film is firstly placed on the carrying tables 12, then the electrical core is carried and placed on the protective film, or the preset protective film and the electrical core are simultaneously placed on the carrying tables 12, and the carrying surfaces of the carrying tables 12 are provided with the absorption assemblies 14. An exemplary suction assembly 14 may be a suction cup through which a vacuum is formed to secure the protective film to the carrier 12. It should be noted that an electric core is placed in a group of bearing tables 12, when a plurality of electric cores are produced, a plurality of bearing tables 12 are placed on the supporting plate 13, the number of the bearing tables 12 is matched with the number of the electric cores, and therefore the plurality of electric cores are produced simultaneously, and the production efficiency is improved.

After the protective film and the battery core are loaded onto the carrying platform 12, the position of the battery core needs to be located and corrected, and for this reason, as shown in fig. 3, the positioning assembly 30 includes a supporting platform 33, a positioning plate 31 slidably disposed on the supporting platform 33, and a second driving assembly 32 for driving the positioning plate 31 to move toward the battery core. The positioning plate 31 is slidably disposed on the support platform 33 through a slide rail and a slider structure, and a positioning end of the positioning plate 31 faces the battery cell. The supporting table 33 is located on the side of the moving path of the bearing assembly 10, and then after the bearing assembly 10 moves in place, the second driving assembly 32 drives the positioning plate 31 to move towards the battery cell on the bearing assembly 10, and then the positioning plate 31 pushes the battery cell to position the battery cell. The number of the positioning assemblies 30 may be determined according to the number of the battery cells on the carrier assembly 10, so as to achieve the purpose of processing a plurality of battery cells simultaneously. For example, the second driving assembly 32 may be a cylinder, a linear motor, or the like.

Further, after electric core is positioned, it is necessary to clamp electric core and protective film firmly, for this reason, set up on carrier assembly 10 and compress tightly subassembly 20, compress tightly subassembly 20 and be located the relative both ends of plummer 12, and then compress tightly fixedly the both ends of electric core through two sets of subassemblies 20 that compress tightly. It is also possible that the pressing assemblies 20 are arranged in a group and can be moved above the carrier table 12, and the cells can be fixed by the group of pressing assemblies 20. As a preferred embodiment, as shown in fig. 2, the pressing assemblies 20 are disposed on the carrier assembly 10 and located at two opposite ends of the carrier 12, each pressing assembly 20 includes a guide plate 23 disposed on the carrier assembly 10, a pressing plate 21 slidably connected to the guide plate 23, and a first driving assembly 22 for driving the pressing plate 21 to move toward the cell, and the first driving assembly 22 drives the pressing plate 21 to move downward toward the cell so as to clamp and fix the cell and the protective film. Simultaneously clamp plate 21 and deflector 23 sliding connection, and clamp plate 21 and first drive assembly 22's drive end sliding fit, wherein, set up the slide rail 26 that extends along the horizontal direction at the drive end of first drive assembly 22, clamp plate 21 slides and sets up on slide rail 26, and then when first drive assembly 22 drives clamp plate 21 downstream, clamp plate 21 moves along slide rail 26 under the guide effect of deflector 23, and then make clamp plate 21 move to the top of electric core along the horizontal direction when pushing down the removal, finally clamp plate 21 pushes down on acting on the electric core, the realization compresses tightly fixedly to electric core and protection film on bearing assembly 10. In the process that the bearing component 10 moves to the next station, the battery core and the protective film are continuously compressed and fixed through the compressing component 20, so that the battery core and the protective film are prevented from moving, the accuracy of the relative positions of the battery core and the protective film is improved, and the precision of the film coating is further ensured.

Further, in the above-described embodiment, as shown in fig. 2, the guide plate 23 is provided with the guide groove 24, and the pressing plate 21 is provided with the cam follower 25 slidably connected to the guide groove 24. The cam follower 25 can slide along the guide groove 24, and then the pressing plate 21 is in the process of downward pressing movement, the cam follower 25 drives the pressing plate 21 to move in the horizontal direction through the guide groove 24, so that the pressing plate 21 is moved above the battery cell through horizontal movement. When the first driving assembly 22 drives the pressing plate 21 to ascend, the pressing plate 21 moves towards one side far away from the battery core synchronously through the cooperation of the cam follower 25 and the guide groove 24, so that the battery core is prevented from being loaded and unloaded, and the purpose of saving space is achieved.

Further, in the above solution, as shown in fig. 4, a first connecting plate 41 and a second connecting plate 42 for installing the compressing assembly 20 are disposed on the supporting plate 13, the first connecting plate 41 and the second connecting plate 42 are slidably disposed on the top of the supporting plate 13 through a slide rail and slider structure, the first connecting plate 41 and the second connecting plate 42 extend to two sides of the plummer 12, and then the compressing assembly 20 is disposed on the first connecting plate 41 and the second connecting plate 42 and located on two opposite sides of the plummer 12, a third driving assembly 43 is further disposed at the bottom of the supporting plate 13, the third driving assembly 43 may be a bidirectional driving cylinder or other bidirectional moving structure, the first connecting plate 41 and the second connecting plate 42 are respectively disposed at a driving end of the third driving assembly 43, and then the first connecting plate 41 and the second connecting plate 42 are driven to move toward or away from each other by the third driving assembly 43, so that the position of the compressing assembly 20 relative to the plummer 12 can be adjusted, and then the position of the compressing assembly 20 can be adjusted according to the size of the electric core, so as to achieve accurate compression on the electric core.

It should be noted that one end of the battery cell is connected with a top cover, and the other end is formed with a tab and/or a connecting plate, for this reason, as shown in fig. 5, an end fixing member 45 is provided on the first connecting plate 41 or the second connecting plate 42, an end bearing member 44 is provided on the second connecting plate 42 or the first connecting plate 41, and positions of the end fixing member 45 and the end bearing member 44 are determined according to a battery cell placement direction. Specifically, the end fixing member 45 is used to fix a top cover of the end of the battery cell, and a clearance groove of a top cover pole is formed in the middle of the end fixing member 45. The end bearing member 44 is used for bearing the connecting sheet or the tab to prevent the connecting sheet or the tab from bending and deforming.

After the battery core and the protection film are pressed and fixed, the protection film is below the battery core, and then the protection film needs to be fixed with the bottom of the battery core by hot melting, for this reason, as a preferred embodiment, a hot melting assembly 50 is disposed on a moving path of the carrying assembly 10, as shown in fig. 3, the hot melting assembly 50 includes a hot melting device 51, and a fourth driving assembly 52 that drives the hot melting head 51 to move toward the battery core. Wherein hot melt ware 51 is provided with one or more side by side, and fourth drive assembly 52 is telescopic cylinder, moves towards electric core bottom through fourth drive assembly 52 drive hot melt ware 51, and the clearance groove has been seted up to plummer 12, and then hot pressing head through hot melt ware 51 with protection film and electric core bottom hot pressing. It should be noted that a plurality of fourth driving assemblies 52 may be further provided, and one hot melt device 51 is separately driven and controlled by one fourth driving assembly 52, so that the height position of each hot melt device 51 may be separately adjusted, and further, it may be avoided that hot melt height is not hot melted or a part of the area is excessively hot melted to affect product quality.

In the above solution, after the hot melting device 51 thermally presses the protection film against the bottom of the battery cell, the hot melting device 51 may be adhered to the protection film, and for this reason, the air blowing assembly 53 disposed toward the battery cell is further disposed on the hot melting assembly 50. The blowing assembly 53 is arranged side by side with the hot melt device 51, for example, the blowing assembly 53 may be a blowing plate, a blowing port of the blowing plate faces the protective film and the battery cell, and then the hot melt device 51 and the protective film are separated by the blowing assembly 53, so that the hot melt device 51 and the protective film are prevented from being adhered.

In summary, in one or more embodiments of the present application, a movable carrier assembly for carrying an electrical core and a protective film is provided, a positioning assembly is provided on a moving path of the carrier assembly, the electrical core on the carrier assembly is positioned by the positioning assembly after the carrier assembly moves to the position of the positioning assembly, so as to ensure the position accuracy between the electrical core and the protective film, a pressing assembly is provided on the carrier assembly, the electrical core on the carrier assembly is pressed by the pressing assembly after the electrical core is positioned, and then the electrical core and the protective film on the carrier assembly are fixed, the carrier assembly moves to a next processing station after the positioning assembly is reset, a next carrier assembly moves to the position of the positioning assembly again to position the electrical core, the positioning assembly and the carrier assembly are separately provided, and then the positioning assembly can be recycled to position the electrical core, so that the cost of the apparatus is greatly reduced, and the overall structure is simplified, so that the cost is reduced, and the production, installation and debugging are facilitated. Meanwhile, in the process that the bearing assembly moves to the next station, the battery core and the protective film are continuously compressed and fixed through the compressing assembly, the battery core and the protective film are prevented from moving, the accuracy of the relative positions of the battery core and the protective film is improved, and the film coating precision is further guaranteed.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims (10)

1. The utility model provides a electricity core diolame fixed establishment which characterized in that: comprises a bearing component (10) which is movably arranged and is used for bearing the battery core and the protective film, and

the positioning assembly (30) is arranged on a moving path of the bearing assembly (10) and is used for positioning the battery cores on the bearing assembly (10);

and the pressing assembly (20) is arranged on the bearing assembly (10) and used for clamping and fixing the battery core and the protective film.

2. The electrical core capsule fixing mechanism of claim 1, characterized in that: the device also comprises a displacement driving assembly (11) for driving the bearing assembly (10), and the positioning assemblies (30) are arranged on two opposite sides of the moving path of the bearing assembly (10).

3. The electrical core capsule fixing mechanism of claim 2, characterized in that: the bearing assembly (10) comprises a supporting plate (13) and at least one bearing table (12) arranged on the supporting plate (13), and an adsorption assembly (14) is arranged on a bearing surface of the bearing table (12).

4. The electrical core capsule fixing mechanism of claim 1, characterized in that: the pressing assembly (20) comprises a guide plate (23) arranged on the bearing assembly (10), a pressing plate (21) connected with the guide plate (23) in a sliding mode, and a first driving assembly (22) for driving the pressing plate (21) to move towards the battery core, wherein the pressing plate (21) is in sliding fit with the driving end of the first driving assembly (22).

5. The electrical core capsule fixing mechanism of claim 4, characterized in that: the guide plate (23) is provided with a guide groove (24), and the pressing plate (21) is provided with a cam follower (25) which is in sliding connection with the guide groove (24).

6. The electrical core capsule fixing mechanism of claim 1, characterized in that: the positioning assembly (30) comprises a supporting table (33), a positioning plate (31) arranged on the supporting table (33) in a sliding mode, and a second driving assembly (32) driving the positioning plate (31) to move towards the battery core.

7. The electric core capsule fixing mechanism of claim 3, characterized in that: the supporting plate (13) is provided with a first connecting plate (41) and a second connecting plate (42) for mounting the pressing component (20), and a third driving component (43) for driving the first connecting plate (41) and the second connecting plate (42) to approach or depart from each other.

8. The electrical core capsule fixing mechanism of claim 7, characterized in that: an end fixing piece (45) is arranged on the first connecting plate (41) or the second connecting plate (42), an end bearing piece (44) is arranged on the second connecting plate (42) or the first connecting plate (41), and the end fixing piece (45) and the end bearing piece (44) are respectively positioned on two opposite sides of the plummer (12).

9. The electrical core capsule fixing mechanism of claim 1, characterized in that: the battery cell protection film and the battery pack protection film are characterized by further comprising a hot melting assembly (50) arranged on a moving path of the bearing assembly (10), wherein the hot melting assembly (50) comprises a hot melting device (51) and a fourth driving assembly (52) for driving the hot melting device (51) to move towards the battery cell and the protection film.

10. The electric core capsule fixing mechanism of claim 9, characterized in that: and the hot melting assembly (50) is also provided with an air blowing assembly (53) arranged towards the protective film.

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