Battery cell film coating device

Abstract

The utility model relates to the technical field of battery cell production, and discloses a battery cell film coating device which comprises a film coating mechanism, the first film wrapping assembly comprises a film wrapping roller, a telescopic assembly used for driving the film wrapping roller to move along the horizontal plane and a lifting device used for driving the telescopic assembly to ascend and descend in the vertical direction. The telescopic assembly is provided with a support, and the film wrapping roller is rotatably installed on the support so as to roll and wrap a film. And the first film coating assembly and the second film coating assembly are the same in structure, and the first film coating assembly and the second film coating assembly are symmetrically arranged about a set symmetric plane. The battery cell film coating device disclosed by the utility model is beneficial to improving the film coating quality of the battery cell.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core production, in particular to a battery core coating device. Background Art

[0002] The current battery cell coating device includes a coating assembly, which includes a bottom coating device and a large coating device that are independent of each other. The bottom coating device includes a coating plate and a lifting device for driving the coating plate to rise and fall. The lifting device drives the coating plate to press the coating on the bottom surface of the battery cell to complete the coating of the bottom of the battery cell; the large coating device uses a side pressure plate to press the coating side on the large surface of the battery cell to complete the coating.

[0003] The cell coating device in the prior art adopts a plate-pressed coating structure, which is not easy to squeeze out the air between the coating and the cell, and easily forms bubbles during the coating process, which is not conducive to improving the coating quality.

[0004] In view of this, it is necessary to design a battery cell coating device to improve the quality of the battery cell coating. Utility Model Content

[0005] The utility model aims to provide a battery core coating device to improve the quality of the battery core coating.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] A battery core coating device, comprising a coating mechanism, wherein the coating mechanism comprises:

[0008] A first film coating assembly, the first film coating assembly comprising a film coating roller, a telescopic assembly for driving the film coating roller to move along a horizontal plane, and a lifting device for driving the telescopic assembly to lift and lower in a vertical direction; the telescopic assembly is installed with a bracket, and the film coating roller is rotatably installed on the bracket to roll the film coating;

[0009] The second membrane envelope component, the first membrane envelope component and the second membrane envelope component have the same structure, and the first membrane envelope component and the second membrane envelope component are symmetrically arranged about a set symmetry plane.

[0010] Optionally, the telescopic stroke of the telescopic assembly is greater than the thickness of the battery cell.

[0011] Optionally, the telescopic assembly includes a support plate, a slide rail mounted on the support plate, a film-coating cylinder slidably mounted on the slide rail, and a telescopic cylinder for driving the film-coating cylinder to move along the slide rail;

[0012] The bracket is installed on the telescopic shaft of the envelope cylinder.

[0013] Optionally, the support comprises a support frame fixedly connected to the telescopic shaft of the coating cylinder and a coating frame rotatably mounted on the support frame, and the coating roller is mounted on the coating frame;

[0014] The support frame is also fixedly connected to a spring fixing block, on which a buffer spring is installed, and opposite ends of the buffer spring are respectively connected to the buffer spring fixing block and one end of the rubber coating frame away from the coating roller.

[0015] Optionally, it further comprises a film placing device for supplying the film and a film pulling robot for pulling the end of the film placed by the film placing device to a set position;

[0016] The second film-encapsulating assembly is provided with a first film-absorbing plate for absorbing the end of the film-encapsulating assembly.

[0017] Optionally, a second film absorbing plate for absorbing the film is arranged on the first film absorbing assembly, and the second film absorbing plate is parallel to the first film absorbing plate.

[0018] Optionally, a cutting device for cutting the film envelope is provided between the first film absorbing plate and the second film absorbing plate.

[0019] Optionally, a clamping robot for clamping the battery cell to the coating station is also included.

[0020] Optionally, a detection sensor for detecting the envelope is also provided.

[0021] Optionally, the lifting device is a servo cylinder.

[0022] Compared with the prior art, the utility model has the following beneficial effects:

[0023] In this embodiment, when the battery cell is placed in the coating station, the telescopic assembly drives the coating roller to roll on the bottom surface of the battery cell, thereby squeezing out the bubbles at the bottom and improving the coating quality at the bottom; then, driven by the lifting device, the coating roller rolls on the large surface of the battery cell and squeezes out the bubbles, so that the subsequent coating is rolled on the large surface of the battery cell to complete the coating. In this embodiment, a rotatable coating roller is used to roll the coating, so as to complete the coating of the bottom surface and large surface of the battery cell. The rolling coating can effectively eliminate bubbles and improve the coating quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0025] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantive technical significance. Any structural modification, change in proportion or adjustment of size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical contents disclosed by the present invention.

[0026] Figure 1 A schematic diagram of the front view of the structure of the battery core coating device provided by an embodiment of the utility model;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of a battery core coating device provided in an embodiment of the utility model;

[0028] Figure 3 A schematic diagram of the installation structure of the film encapsulation mechanism provided in an embodiment of the utility model;

[0029] Figure 4 A three-dimensional structural schematic diagram of a local structure of a first membrane envelope assembly provided in an embodiment of the utility model;

[0030] Figure 5 A partial three-dimensional side view and a partial enlarged schematic diagram of the first membrane packaging assembly provided in an embodiment of the utility model.

[0031] Illustrations: 1. First film wrapping assembly; 1001. Second film absorbing plate; 11. Film wrapping roller; 12. Telescopic assembly; 121. Support plate; 122. Film wrapping cylinder; 123. Telescopic cylinder; 13. Lifting device; 2. Second film wrapping assembly; 2001. First film absorbing plate; 100. Bracket; 101. Support frame; 102. Rubber wrapping frame; 103. Spring fixing block; 104. Buffer spring; 3. Film placing device; 4. Film pulling robot; 5. Cutting device; 7. Detection sensor. DETAILED DESCRIPTION

[0032] In order to make the utility model's purpose, features, and advantages more obvious and easy to understand, the following will be combined with the drawings in the utility model embodiments to clearly and completely describe the technical solutions in the utility model embodiments. Obviously, the embodiments described below are only part of the utility model embodiments, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally arranged component at the same time.

[0034] The technical solution of the utility model is further explained below with reference to the accompanying drawings and through specific implementation methods.

[0035] The embodiment of the utility model provides a battery core coating device, which can be helpful in improving the quality of battery core coating.

[0036] See also Figures 1 to 5 , the battery cell coating device includes a coating mechanism, and the coating mechanism includes;

[0037] A first film coating component 1, the first film coating component 1 includes a film coating roller 11, a telescopic component 12 for driving the film coating roller 11 to move along a horizontal plane, and a lifting device 13 for driving the telescopic component 12 to rise and fall in a vertical direction; the telescopic component 12 is installed with a bracket 100, and the film coating roller 11 can be rotatably installed on the bracket 100 to roll the film; a second film coating component 2, the first film coating component 1 and the second film coating component 2 have the same structure, and the first film coating component 1 and the second film coating component 2 are symmetrically arranged about a set symmetry plane.

[0038] Specifically, when the battery cell is placed in the set coating station, the first coating component 1 first drives the coating roller 11 to roll the bottom surface of the battery cell, and then the second coating component 2 drives the coating roller 11 to roll the bottom surface of the battery cell, thereby fully eliminating bubbles and improving the coating quality of the bottom of the battery cell.

[0039] In addition, after the coating of the bottom of the battery cell is completed, the coating roller 11 continues to roll along the large surface of the battery cell from bottom to top, thereby completing the coating of the large surface of the battery cell. It should also be noted that in the process of rolling the large surface, gas can be effectively squeezed out, reducing the possibility of bubble formation in the coating and improving the coating quality.

[0040] Optionally, the telescopic stroke of the telescopic component 12 is greater than the thickness of the battery cell. In this way, the first coating component 1 can first drive the coating roller 11 to roll the entire bottom surface of the battery cell, and then the second coating component 2 can drive the coating roller 11 to roll the entire bottom surface of the battery cell, further improving the coating effect and coating quality.

[0041] Optionally, the telescopic assembly 12 includes a support plate 121, a slide rail installed on the support plate 121, a coating cylinder 122 slidably installed on the slide rail, and a telescopic cylinder 123 for driving the coating cylinder 122 to move along the slide rail; the bracket 100 is installed on the telescopic shaft of the coating cylinder 122.

[0042] Specifically, the sum of the telescopic stroke of the telescopic cylinder 123 and the telescopic stroke of the film-coating cylinder 122 is the telescopic stroke of the telescopic assembly 12. The arrangement of the telescopic cylinder 123 and the film-coating cylinder 122 is equivalent to increasing the telescopic stroke of the telescopic assembly 12, which is conducive to adapting to the film coating of battery cells with larger thickness.

[0043] Optionally, the bracket 100 includes a support frame 101 fixedly connected to the telescopic shaft of the coating cylinder 122 and a rubber coating frame 102 rotatably mounted on the support frame 101, and the coating roller 11 is mounted on the rubber coating frame 102; the support frame 101 is also fixedly connected to a spring fixing block 103, and a buffer spring 104 is mounted on the spring fixing block 103, and the opposite ends of the buffer spring 104 are respectively connected to the buffer spring 104 fixing block 103 and the rubber coating frame 102 away from the coating roller 11.

[0044] Specifically, the structure in this embodiment is equivalent to applying force to the coating frame 102 through the buffer spring 104, thereby controlling the rolling pressure of the coating roller 11, avoiding the problem of rigid pressure easily causing damage to the surface of the battery cell and scratching the coating, and effectively improving the coating quality.

[0045] Optionally, the battery cell coating device also includes a coating placing device 3 for supplying coating and a film pulling robot 4 for pulling the end of the coating released by the coating placing device 3 to a set position; the second coating assembly 2 is provided with a first film absorbing plate 2001 for adsorbing the end of the coating.

[0046] Specifically, the film-pulling manipulator 4 pulls the end of the film to the first film-absorbing plate 2001, and the first film-absorbing plate 2001 absorbs the end of the film. Then, the battery cell can be placed in the film-coating station between the first film-coating assembly 1 and the second film-coating assembly 2 for film coating. The first film-coating assembly 1 and the second film-coating assembly 2 coat the battery cell from both sides. The coating of the first large side and the second large side of the battery cell is performed simultaneously.

[0047] Optionally, the first film-coating assembly 1 is provided with a second film-absorbing plate 1001 for absorbing the film, and the second film-absorbing plate 1001 is parallel to the first film-absorbing plate 2001. Specifically, the first film-absorbing plate 2001 absorbs the film to prevent the film from being too loose, thereby facilitating the improvement of the film quality.

[0048] Optionally, a cutting device 5 for cutting the film is provided between the first film absorbing plate 2001 and the second film absorbing plate 1001. Specifically, after the film coating of the battery cell is completed, the first film absorbing plate 2001 absorbs the film, and the cutting device 5 cuts off the film between the battery cell and the first film absorbing plate 2001, and then the film pulling manipulator 4 moves and absorbs the film on the first film absorbing plate 2001, and the film between the first film absorbing plate 2001 is released, and the film pulling manipulator 4 places the end of the film on the second film absorbing plate 1001, and the second film absorbing plate 1001 absorbs the film, and then the film coating of the next battery cell is started.

[0049] Optionally, the battery cell coating device further comprises a clamping manipulator for clamping the battery cell to the coating station. The clamping manipulator clamps the battery cell so that the coating mechanism can coat the battery cell.

[0050] Optionally, the cell film wrapping device is further provided with a detection sensor 7 for detecting the film wrapping, so that when a roll of film wrapping is used up, the production workers can promptly notice and replace a new roll of film wrapping.

[0051] Optionally, the lifting device 13 is a servo cylinder to improve the lifting accuracy, thereby controlling the elastic force of the buffer spring.

[0052] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A battery core coating device, characterized in that: The invention comprises a coating mechanism, wherein the coating mechanism comprises: A first film coating assembly (1), the first film coating assembly (1) comprising a film coating roller (11), a telescopic assembly (12) for driving the film coating roller (11) to move along a horizontal plane, and a lifting device (13) for driving the telescopic assembly (12) to lift and lower in a vertical direction; the telescopic assembly (12) is installed with a bracket (100), and the film coating roller (11) can be rotatably installed on the bracket (100) to roll and coat the film; The second membrane envelope component (2), the first membrane envelope component (1) and the second membrane envelope component (2) have the same structure, and the first membrane envelope component (1) and the second membrane envelope component (2) are symmetrically arranged with respect to a set symmetry plane.

2. The battery core coating device according to claim 1, characterized in that: The telescopic stroke of the telescopic component (12) is greater than the thickness of the battery core.

3. The battery core coating device according to claim 1, characterized in that: The telescopic assembly (12) comprises a support plate (121), a slide rail mounted on the support plate (121), a film-coating cylinder (122) slidably mounted on the slide rail, and a telescopic cylinder (123) for driving the film-coating cylinder (122) to move along the slide rail; The support (100) is installed on the telescopic shaft of the encapsulating cylinder (122).

4. The battery core coating device according to claim 3, characterized in that: The support (100) comprises a support frame (101) fixedly connected to the telescopic shaft of the coating cylinder (122) and a coating frame (102) rotatably mounted on the support frame (101), and the coating roller (11) is mounted on the coating frame (102); The support frame (101) is also fixedly connected to a spring fixing block (103), and a buffer spring (104) is installed on the spring fixing block (103). The opposite ends of the buffer spring (104) are respectively connected to the buffer spring (104) fixing block (103) and one end of the rubber coating frame (102) away from the coating roller (11).

5. The battery core coating device according to claim 1, characterized in that: It also includes a film placing device (3) for supplying the film and a film pulling robot (4) for pulling the end of the film placed by the film placing device (3) to a set position; The second film coating component (2) is provided with a first film absorbing plate (2001) for absorbing the end of the film coating.

6. The battery core coating device according to claim 5, characterized in that: The first film-absorbing assembly (1) is provided with a second film-absorbing plate (1001) for absorbing the film, and the second film-absorbing plate (1001) is parallel to the first film-absorbing plate (2001).

7. The battery core coating device according to claim 6, characterized in that: A cutting device (5) for cutting the film envelope is provided between the first film absorbing plate (2001) and the second film absorbing plate (1001).

8. The battery core coating device according to claim 6, characterized in that: It also includes a clamping robot for clamping the battery cell to the coating station.

9. The battery core coating device according to claim 6, characterized in that: A detection sensor (7) for detecting the envelope is also provided.

10. The battery core coating device according to claim 6, characterized in that: The lifting device (13) is a servo cylinder.

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