Film attaching apparatus and film attaching method

Abstract

The application provides a film pasting device and a film pasting method, and the film pasting device is used for pasting an insulating film on an electric core, and the film pasting device comprises a grabbing mechanism, a tearing mechanism and a positioning mechanism. The grabbing part of the grabbing mechanism is movably arranged, and the grabbing part has a grabbing position, a tearing position and a pasting position. The tearing mechanism is arranged on the side of the grabbing mechanism, and the tearing mechanism comprises an abutting part and a tearing part. The tearing part is movably arranged, and the tearing part is used for clamping a pattern paper on the insulating film and driving the pattern paper to separate from the insulating film. The positioning mechanism is arranged on the side of the grabbing mechanism, and the positioning part of the positioning mechanism is used for positioning the electric core. When the grabbing part is transferred from the tearing position to the pasting position, the grabbing part is used for pasting the insulating film on the electric core. Through the technical scheme provided by the application, the problem of low efficiency of manual film pasting in the prior art is solved.

Description

Technical Field

[0001] This invention relates to the field of intelligent manufacturing technology for energy storage products, and more specifically, to a film application device and a film application method. Background Technology

[0002] Currently, some battery packs in energy storage products use a PC film (polycarbonate film) as a separator between adjacent cells to achieve insulation between them. Existing technologies primarily employ manual application of this film.

[0003] However, manual film application has many problems. It often results in high labor intensity for workers and low production efficiency. Summary of the Invention

[0004] The main objective of this invention is to provide a film application device and a film application method to solve the problem of low efficiency in manual film application in the prior art.

[0005] To achieve the above objectives, according to one aspect of the present invention, a film-applying device is provided for applying an insulating film onto a battery cell. The film-applying device includes: a gripping mechanism, wherein a gripping portion of the gripping mechanism is movably disposed, and the gripping portion has a gripping position, a tear-off position, and an application position; when the gripping portion is in the gripping position, the gripping portion is used to grip the insulating film; a tear-off mechanism is disposed on the side of the gripping mechanism, and the tear-off mechanism includes an abutting portion and a tear-off portion; when the gripping portion moves from the gripping position to the tear-off position, the gripping portion and the abutting portion are disposed opposite each other, and the gripping portion is used to abut the insulating film against the abutting portion; the tear-off portion is movably disposed, and the tear-off portion is used to grip the template paper on the insulating film and drive the template paper to separate from the insulating film; a positioning mechanism is disposed on the side of the gripping mechanism, wherein a positioning portion of the positioning mechanism is used to position the battery cell; when the gripping portion moves from the tear-off position to the application position, the gripping portion is used to apply the insulating film onto the battery cell.

[0006] Furthermore, the film-applying equipment also includes a first vision detection element, which is used to detect the position of the insulating film on the gripping part; the positioning mechanism includes a second vision detection element, which is disposed toward the positioning part and is used to detect the position of the battery cell on the positioning part.

[0007] Furthermore, the film application equipment also includes a control mechanism, a gripping mechanism, a tearing mechanism, and a positioning mechanism, all of which are connected to the control mechanism. The control mechanism adjusts the application position according to the position of the insulating film on the gripping part and the position of the battery cell on the positioning part.

[0008] Furthermore, the first visual inspection element is positioned above the second visual inspection element, and the gripping part also has a detection position located between the tear-off position and the application position. The detection position is parallel to the application position and is located above the application position. When the gripping part is in the detection position, the first visual inspection element is positioned opposite to the gripping part to detect the position of the insulating film on the gripping part. And / or, the film application device also includes a light-emitting element, which has a connecting hole. The battery cell and the second visual inspection element are respectively positioned on both sides of the connecting hole. The second visual inspection element detects the battery cell through the connecting hole. The light-emitting element has a spherical light-emitting surface, which surrounds the connecting hole.

[0009] Furthermore, the gripping mechanism also includes: a first driving unit, which is driven connected to the gripping unit, and the angle of the first driving unit is adjustable to adjust the angle of the gripping unit; and a second driving unit, which is driven connected to the first driving unit and is movably arranged to adjust the position of the gripping unit.

[0010] Furthermore, the tearing mechanism also includes: a third position detection element, disposed towards the abutment portion, the third position detection element being used to detect whether an insulating film is disposed on the abutment portion; or, a pressure detection element, disposed on the abutment portion, the pressure detection element being used to detect the pressure condition of the abutment portion; wherein, when the third position detection element detects that an insulating film is disposed on the abutment portion, or when the pressure detection element detects that the pressure of the abutment portion increases to a preset pressure value, the tearing portion clamps the template paper and drives the template paper to move.

[0011] Furthermore, the film application equipment also includes: a feeding mechanism, wherein the feeding part of the feeding mechanism is movably arranged along a preset direction, and the feeding part has a feeding position and a discharging position; when the feeding part is in the discharging position, the feeding part is located between the gripping mechanism and the tearing mechanism; when the feeding part is in the feeding position, the feeding part is located on the side of the gripping mechanism away from the positioning mechanism.

[0012] Furthermore, the feeding mechanism includes multiple feeding components, each feeding component includes at least two feeding parts connected together, and the multiple feeding components are movably arranged along a preset direction; when one of the multiple feeding components is in the discharge position, the other of the multiple feeding components is in the loading position; and / or, the film application equipment also includes a light curtain, which is arranged between the loading position and the discharge position.

[0013] Furthermore, the positioning part has a positioning opening groove adapted to the battery cell. The positioning opening groove is adapted to the shape of both sides of the battery cell. The positioning opening groove is set to avoid the mounting surface of the battery cell. The second visual inspection component is set to face the positioning opening groove.

[0014] Furthermore, the positioning mechanism also includes a pressing structure, wherein the pressing part of the pressing structure is movably disposed to be close to or away from the positioning part, and the pressing part is used to press the battery cell into the positioning opening groove.

[0015] Furthermore, the gripping unit includes: a gripping plate adapted to the shape of the insulating film, and an air extraction channel provided on the gripping plate; and a negative pressure adsorption component connected to the air extraction channel, which is used to perform an air extraction operation on the air extraction channel so that the insulating film is attached to the gripping plate.

[0016] Furthermore, the gripping unit also includes: a positioning substrate disposed on the side of the gripping plate away from the insulating film, a negative pressure adsorption component passing through the positioning substrate and the gripping plate; and a buffer component disposed between the gripping plate and the positioning substrate.

[0017] According to another aspect of the present invention, a film application method is provided, applicable to the film application equipment provided above, the film application method comprising:

[0018] Grasp the insulating film;

[0019] Place the insulating film against the contact area and peel off the template paper from the insulating film;

[0020] Position the battery cell and attach the insulating film, which has been peeled off the template, to the battery cell.

[0021] Furthermore, before attaching the insulating film, which has been peeled off the forming paper, to the battery cell, the film application method also includes:

[0022] To determine the location of the insulating film and the battery cell;

[0023] Compare the position of the insulating film with the position of the battery cell;

[0024] The position of the insulating film is adjusted according to the comparison results to ensure that the insulating film is aligned with the battery cell.

[0025] By applying the technical solution of this invention, when the gripping mechanism is in the gripping position, the gripping mechanism grips the insulating film through the gripping part. Then, the gripping mechanism carries the insulating film to the tear-off position, where the gripping part abuts the insulating film against the abutting part of the tear-off mechanism. The tear-off mechanism then grasps the template paper on the insulating film through the tear-off part and separates the template paper from the insulating film. Afterward, the gripping mechanism carries the insulating film to the application position, where the gripping part applies the insulating film to the battery cell positioned by the positioning mechanism. At this point, the film application is complete. Thus, this application completes the process of insulating film gripping, template paper tearing, and insulating film application, achieving automated film application. Compared to manual film application, this improves production efficiency, and the automated production method ensures stable product quality. Therefore, this invention solves the problem of low efficiency in manual film application in the prior art. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0027] Figure 1 A schematic diagram of the structure of a film-applying device according to an embodiment of the present invention is shown;

[0028] Figure 2 A schematic diagram of the film application device provided according to an embodiment of the present invention is shown from another perspective;

[0029] Figure 3 A partial structural schematic diagram of the peeling mechanism of the film-applying device according to an embodiment of the present invention is shown;

[0030] Figure 4 A partial structural schematic diagram of a film-applying device according to an embodiment of the present invention is shown;

[0031] Figure 5 Another partial structural schematic diagram of the film-applying device provided according to an embodiment of the present invention is shown.

[0032] The above figures include the following reference numerals:

[0033] 10. Gripping mechanism; 11. Gripping part; 111. Gripping plate; 112. Negative pressure adsorption component; 113. Positioning base plate; 12. First driving part; 13. Second driving part;

[0034] 20. Tear-off mechanism; 21. Contact part; 22. Tear-off part;

[0035] 30. Positioning mechanism; 31. Positioning part; 311. Positioning opening slot; 32. Second vision inspection component; 33. Clamping structure;

[0036] 40. First visual inspection items;

[0037] 50. Light-emitting component; 51. Spherical light-emitting surface;

[0038] 60. Feeding mechanism; 61. Feeding department;

[0039] 70. Light curtain; 80. Insulating film; 90. Battery cell. Detailed Implementation

[0040] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0041] like Figures 1 to 5As shown, this embodiment provides a film-applying device for applying an insulating film 80 onto a battery cell 90. The device includes a gripping mechanism 10, a tearing mechanism 20, and a positioning mechanism 30. The gripping part 11 of the gripping mechanism 10 is movably disposed and has a gripping position, a tearing position, and an application position. When the gripping part 11 is in the gripping position, it grips the insulating film 80. The tearing mechanism 20 is disposed on the side of the gripping mechanism 10 and includes an abutting part 21 and a tearing part 22. When the gripping part 11 moves from the gripping position to the tearing position, the gripping part 11 and the abutting part 21 are positioned opposite each other, and the gripping part 11 abuts the insulating film 80 against the abutting part 21. The tearing part 22 is movably disposed and is used to grip the template paper on the insulating film 80 and separate the template paper from the insulating film 80. The positioning mechanism 30 is located on the side of the gripping mechanism 10. The positioning part 31 of the positioning mechanism 30 is used to position the battery cell 90. When the gripping part 11 moves from the tear-off position to the attaching position, the gripping part 11 is used to attach the insulating film 80 onto the battery cell 90.

[0042] Using the film-applying equipment provided in this embodiment, when the gripping mechanism 10 is in the gripping position, the gripping mechanism 10 grips the insulating film 80 through the gripping part 11. Then, the gripping mechanism 10 carries the insulating film 80 to the tear-off position, where the gripping part 11 abuts the insulating film 80 against the abutting part 21 of the tear-off mechanism 20. The tear-off mechanism 20 uses the tear-off part 22 to grip the template paper on the insulating film 80 and separates the template paper from the insulating film 80. Then, the gripping mechanism 10 carries the insulating film 80 to the application position, where the gripping part 11 brings the insulating film 80 close to and applies it to the battery cell 90 positioned by the positioning mechanism 30. At this point, the film application is complete. In this way, the film-applying equipment completes the process of gripping the insulating film 80, tearing off the template paper, and applying the insulating film 80, achieving automated film application and improving production efficiency compared to manual film application. Furthermore, through automated production, product consistency is higher, product quality is more stable, and the drawback of easy contamination of the adhesive after manually tearing off the template paper is avoided. This solves the problem of low efficiency in manual film application in existing technologies.

[0043] Specifically, the number of templates can be one, two, or more. In this embodiment, two templates spaced apart are provided on at least one side of the insulating film 80.

[0044] Specifically, the insulating film 80 can be a PC film. The tear-off part 22 is a tear-off gripper, which is movably arranged to separate the template paper from the insulating film 80 after the tear-off gripper clamps the template paper. The tear-off gripper can be a pneumatic gripper, which is movably arranged along the height direction of the insulating film 80.

[0045] In this embodiment, the film-applying device further includes a first visual inspection element 40, which is used to detect the position of the insulating film 80 on the gripping part 11. The positioning mechanism 30 includes a second visual inspection element 32, which is disposed towards the positioning part 31 and is used to detect the position of the battery cell 90 on the positioning part 31. In this way, by using the first visual inspection element 40 to detect the position of the insulating film 80 on the gripping part 11 and the second visual inspection element 32 to detect the position of the battery cell 90 on the positioning part 31, the peeling position and the application position can be adjusted according to the positions of the insulating film 80 and the battery cell 90, thereby improving the accuracy of subsequent processes.

[0046] In this embodiment, the film-applying device further includes a control mechanism. The gripping mechanism 10, the tearing mechanism 20, and the positioning mechanism 30 are all connected to the control mechanism. The control mechanism adjusts the application position based on the position of the insulating film 80 on the gripping part 11 and the position of the battery cell 90 on the positioning part 31. In this way, the control mechanism can adjust the application position based on the positions of the insulating film 80 and the battery cell 90 detected by the first visual inspection element 40 and the second visual inspection element 32, thereby ensuring the accuracy of the film application and improving product quality.

[0047] In this embodiment, the first visual detection element 40 is disposed above the second visual detection element 32, and the gripping part 11 also has a detection position located between the tear-off position and the application position. The detection position is parallel to the application position and is located above the application position. When the gripping part 11 is in the detection position, the first visual detection element 40 is disposed opposite to the gripping part 11 to detect the position of the insulating film 80 on the gripping part 11.

[0048] Specifically, the film-applying device in this embodiment also includes a mounting frame, which is located on the side of the positioning mechanism 30 away from the gripping mechanism 10. The first visual inspection element 40 and the second visual inspection element 32 are both mounted on the mounting frame. In this way, the influence of the first visual inspection element 40 and the second visual inspection element 32 on the range of motion of the gripping mechanism 10 can be avoided, ensuring the stable operation of the gripping mechanism 10.

[0049] Specifically, after the tearing mechanism 20 separates the template paper from the insulating film 80, the gripping part 11 moves from the tearing position to the detection position, and the position of the insulating film 80 on the gripping part 11 is detected by the first visual inspection element 40. In this way, the control structure can adjust the bonding position according to the position of the insulating film 80 detected by the first visual inspection element 40 and the position of the battery cell 90 detected by the second visual inspection element 32, ensuring that the bonding position does not deviate, thereby improving the quality of the product.

[0050] In this embodiment, the film-applying device further includes a light-emitting element 50, which has a connecting hole. A battery cell 90 and a second visual detection element 32 are respectively disposed on both sides of the connecting hole. The second visual detection element 32 detects the battery cell 90 through the connecting hole. The light-emitting element 50 has a spherical light-emitting surface 51, which surrounds the connecting hole. Thus, by illuminating the position of the battery cell 90 with the light-emitting element 50, the second visual detection element 32 can more clearly detect the position of the battery cell 90 and its surroundings, thereby ensuring the accuracy of the battery cell 90 position detection.

[0051] In this embodiment, the gripping mechanism 10 further includes a first driving unit 12 and a second driving unit 13. The first driving unit 12 is drivenly connected to the gripping unit 11, and its angle is adjustable to adjust the angle of the gripping unit 11. The second driving unit 13 is drivenly connected to the first driving unit 12, and its position is movably adjusted to adjust the position of the gripping unit 11. Thus, the first driving unit 12 and the second driving unit 13 achieve adjustment of the angle and position of the gripping unit, resulting in a simple structure and stable transmission.

[0052] Specifically, in this embodiment, the gripping mechanism 10 is a six-axis robot to effectively ensure the stability and accuracy of gripping, and to facilitate the movement of the insulating film to a preset position.

[0053] In this embodiment, the tearing mechanism further includes a third position detection element or a pressure detection element. The third position detection element is positioned towards the abutment portion 21 and is used to detect whether an insulating film 80 is provided on the abutment portion 21. The pressure detection element is positioned on the abutment portion 21 and is used to detect the pressure applied to the abutment portion 21. Specifically, when the third position detection element detects that an insulating film 80 is provided on the abutment portion 21, or when the pressure detection element detects that the pressure on the abutment portion 21 increases to a preset pressure value, the tearing portion 22 grips the template paper and moves it. This ensures that the abutment portion 21 effectively abuts against the insulating film 80, ensuring that the position of the insulating film 80 does not shift when the template paper is torn off, and ensuring that the template paper can be smoothly separated from the insulating film 80 without damage to the insulating film 80.

[0054] Specifically, the third position detection element can be a photoelectric detection structure. The emitting part of the photoelectric detection structure is disposed facing the abutment part 21, and a receiving groove for mounting the receiving part of the photoelectric detection structure is provided on the abutment part 21. When the receiving part senses the signal from the emitting part, it is determined that no insulating film is provided on the abutment part 21; when the receiving part does not sense the signal from the emitting part, it is determined that an insulating film is provided on the abutment part 21.

[0055] Specifically, when the tear-off mechanism includes a pressure detection element, the pressure detection element can be a strain gauge structure, which is attached to the contact portion 21.

[0056] In this embodiment, the film-applying equipment also includes a feeding mechanism 60. The feeding section 61 of the feeding mechanism 60 is movably arranged along a preset direction, and the feeding section 61 has a loading position and a discharging position. When the feeding section 61 is in the discharging position, it is located between the gripping mechanism 10 and the tearing mechanism 20; when the feeding section 61 is in the loading position, it is located on the side of the gripping mechanism 10 away from the positioning mechanism 30. In this way, the feeding mechanism 60 realizes the automated switching process of loading and unloading the insulating film 80, improving production efficiency.

[0057] In this embodiment, the feeding mechanism 60 includes multiple feeding components, each of which includes at least two connected feeding parts 61. All feeding components are movably arranged along a preset direction. When one of the feeding components is in the discharge position, another is in the loading position. Thus, by alternating between the loading and discharge positions, uninterrupted material output is ensured, thereby improving production efficiency.

[0058] Specifically, multiple insulating films are stacked inside the feeding section 61.

[0059] Furthermore, the film-applying equipment also includes a light curtain 70, which is positioned between the loading and unloading positions. The light curtain 70 separates the loading and unloading positions, thus ensuring the safety of the production process. Specifically, the light curtain 70 can also sense whether there are obstacles. When the light curtain 70 detects an obstacle (which could be a person or object) passing through it, the control mechanism controls the gripping mechanism 10 to stop operating based on the detection by the light curtain 70.

[0060] In this embodiment, the positioning part 31 has a positioning opening groove 311 adapted to the battery cell 90. The positioning opening groove 311 is adapted to the shape of both sides of the battery cell 90. The positioning opening groove 311 is disposed to avoid the bonding surface of the battery cell 90, and the second visual inspection element 32 is disposed facing the positioning opening groove 311. In this way, the positioning opening groove 311 achieves accurate positioning of the battery cell 90, and the positioning opening groove 311 does not form an obstruction between the second visual inspection element 32 and the battery cell 90, which facilitates the smooth bonding of the insulating film 80 to the bonding surface, thereby improving the detection accuracy of the second visual inspection element 32.

[0061] Specifically, the mounting surface of the battery cell 90 is mainly the side with a larger area of ​​the battery cell 90.

[0062] In this embodiment, the positioning mechanism 30 further includes a pressing structure 33. The pressing part of the pressing structure 33 is vertically and vertically disposed to be close to or away from the positioning part 31. The pressing part is used to press the battery cell 90 into the positioning opening groove 311. In this way, the position of the battery cell 90 will not deviate when the insulating film 80 is attached, thereby ensuring the quality of the product.

[0063] Specifically, the clamping structure 33 also includes a cylinder power structure, which drives the clamping part to move closer to or away from the positioning part. In this way, the structure is simple and the transmission is stable.

[0064] In this embodiment, the gripping part 11 includes a gripping plate 111 and a negative pressure adsorption member 112. The gripping plate 111 is adapted to the shape of the insulating film 80, and an air extraction channel is provided on the gripping plate 111. The negative pressure adsorption member 112 is connected to the air extraction channel and is used to perform an air extraction operation on the air extraction channel so that the insulating film 80 is attached to the gripping plate 111. In this way, the insulating film 80 can be stably attached to the gripping plate 111 with a simple structure, which reduces production costs while ensuring product quality.

[0065] In this embodiment, the gripping part 11 further includes a positioning substrate 113 and a buffer member, which are disposed on the side of the gripping plate 111 away from the insulating film 80. The negative pressure adsorption member 112 passes through the positioning substrate 113 and the gripping plate 111; the buffer member is disposed between the gripping plate 111 and the positioning substrate 113. In this way, the stability of the gripping part 11 gripping the insulating film 80 can be ensured, and in the subsequent application process, the buffer member can also buffer when the gripping part 11 abuts against the contact part 21, so that the insulating film 80 does not deform.

[0066] Embodiment 2 of the present invention provides a film-applying method applicable to the film-applying equipment described above. The method includes: grasping an insulating film 80; abutting the insulating film 80 against the abutment portion 21 and peeling off the template paper from the insulating film 80; positioning the battery cell 90; and pasting the insulating film 80 with the template paper removed onto the battery cell 90. This facilitates the peeling off of the template paper from the insulating film 80 and the pasting of the insulating film 80 onto the battery cell 90. All of the above processes are automated and do not require manual intervention, thus improving operational efficiency.

[0067] Specifically, before pasting the insulating film 80 (after peeling off the template) onto the battery cell 90, the film-applying method further includes: obtaining the positions of the insulating film 80 and the battery cell 90; comparing the positions of the insulating film 80 and the battery cell 90; and adjusting the position of the insulating film 80 according to the comparison result to ensure that the insulating film 80 is aligned with the battery cell 90. This structural design facilitates improved application accuracy and film-applying quality, thereby effectively ensuring the insulation performance between adjacent battery cells 90.

[0068] As can be seen from the above description, the above embodiments of the present invention achieve the following technical effects: the process of gripping the insulating film 80, tearing off the template paper, and applying the insulating film 80 is completed through this application, realizing automated film application. Compared with manual film application, it improves production efficiency, and the position of each component is detected by multiple detection devices to ensure product quality.

[0069] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0070] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0071] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms 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, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0072] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0073] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0074] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A film application device, characterized in that, The film-applying device is used to apply an insulating film (80) onto the battery cell (90), and the film-applying device includes: The gripping mechanism (10) has a gripping part (11) that is movably provided. The gripping part (11) has a gripping position, a tear-off position and an attaching position. When the gripping part (11) is in the gripping position, the gripping part (11) is used to grip the insulating film (80). A tear-off mechanism (20) is disposed on the side of the gripping mechanism (10). The tear-off mechanism (20) includes an abutment part (21) and a tear-off part (22). When the gripping part (11) moves from the gripping position to the tear-off position, the gripping part (11) is disposed opposite to the abutment part (21). The gripping part (11) is used to abut the insulating film (80) against the abutment part (21). The tear-off part (22) is movably disposed. The tear-off part (22) is used to grip the template paper on the insulating film (80) and drive the template paper to separate from the insulating film (80). A positioning mechanism (30) is provided on the side of the gripping mechanism (10). The positioning part (31) of the positioning mechanism (30) is used to position the battery cell (90). When the gripping part (11) moves from the tear-off position to the attaching position, the gripping part (11) is used to attach the insulating film (80) to the battery cell (90). The gripping part (11) includes: a gripping plate (111) adapted to the shape of the insulating film (80), and an air extraction channel provided on the gripping plate (111); a negative pressure adsorption member (112) communicating with the air extraction channel, the negative pressure adsorption member (112) being used to perform an air extraction operation on the air extraction channel so that the insulating film (80) is attached to the gripping plate (111); a positioning base plate (113) disposed on the side of the gripping plate (111) away from the insulating film (80), the negative pressure adsorption member (112) passing through the positioning base plate (113) and the gripping plate (111); and a buffer member disposed between the gripping plate (111) and the positioning base plate (113). The film application device further includes a first visual inspection element (40), which is used to detect the position of the insulating film (80) on the gripping part (11); The positioning mechanism (30) includes a second visual detection element (32), which is disposed toward the positioning part (31) and is used to detect the position of the battery cell (90) on the positioning part (31); The first visual inspection element (40) is disposed above the second visual inspection element (32). The gripping part (11) also has a detection position located between the tear-off position and the application position. The detection position is parallel to the application position and is located above the application position. When the gripping part (11) is in the detection position, the first visual inspection element (40) is disposed opposite to the gripping part (11) to detect the position of the insulating film (80) on the gripping part (11); and / or, The film application device also includes a light-emitting element (50), which has a connecting hole. The battery cell (90) and the second visual detection element (32) are respectively disposed on both sides of the connecting hole. The second visual detection element (32) detects the battery cell (90) through the connecting hole. The light-emitting element (50) has a spherical light-emitting surface (51) which surrounds the connecting hole.

2. The film application device according to claim 1, characterized in that, The film application device also includes: The control mechanism is connected to the gripping mechanism (10), the tearing mechanism (20) and the positioning mechanism (30). The control mechanism adjusts the bonding position according to the position of the insulating film (80) on the gripping part (11) and the position of the battery cell (90) on the positioning part (31).

3. The film application device according to claim 1, characterized in that, The gripping mechanism (10) further includes: A first driving unit (12) is driven to connect with the gripping unit (11), and the angle of the first driving unit (12) is adjustable to adjust the angle of the gripping unit (11). The second drive unit (13) is driven to be connected to the first drive unit (12), and the second drive unit (13) is movably provided to adjust the position of the gripping unit (11).

4. The film application device according to claim 1, characterized in that, The tearing mechanism (20) further includes: A third position detection element is disposed toward the abutment portion (21), and the third position detection element is used to detect whether the insulating film (80) is disposed on the abutment portion (21); or, A pressure detection element is disposed on the abutment portion (21), and the pressure detection element is used to detect the pressure condition of the abutment portion (21); When the third position detection element detects that the insulating film (80) is provided on the abutment part (21), or when the pressure detection element detects that the pressure of the abutment part (21) increases to a preset pressure value, the tear-off part (22) clamps the template paper and drives the template paper to move.

5. The film application device according to claim 1, characterized in that, The film application device also includes: The feeding mechanism (60) has a feeding part (61) that is movably arranged in a preset direction. The feeding part (61) has a feeding position and a discharging position. When the feeding part (61) is in the discharging position, the feeding part (61) is located between the gripping mechanism (10) and the tearing mechanism (20). When the feeding part (61) is in the feeding position, the feeding part (61) is located on the side of the gripping mechanism (10) away from the positioning mechanism (30).

6. The film-applying device according to claim 5, characterized in that, The feeding mechanism (60) includes multiple feeding components, each of which includes at least two feeding parts (61) connected together. All feeding components are movably arranged along a preset direction. When one of the multiple feeding components is in the discharge position, another of the multiple feeding components is in the loading position; and / or, The film application equipment also includes a light curtain (70) disposed between the feeding position and the discharging position.

7. The film-applying device according to claim 1, characterized in that, The positioning part (31) has a positioning opening groove (311) adapted to the battery cell (90). The positioning opening groove (311) is adapted to the shape of both sides of the battery cell (90). The positioning opening groove (311) is arranged to avoid the bonding surface of the battery cell (90). The second visual inspection element (32) is arranged facing the positioning opening groove (311).

8. The film-applying device according to claim 7, characterized in that, The positioning mechanism (30) further includes: A pressing structure (33) is provided with a pressing part that can be raised and lowered to be positioned close to or away from the positioning part (31). The pressing part is used to press the battery cell (90) into the positioning opening groove (311).

9. A method for applying a film, characterized in that, The film application device applicable to any one of claims 1 to 8, the film application method comprising: Grasp the insulating film; The insulating film is pressed against the contact portion, and the template paper on the insulating film is peeled off. Position the battery cell and then attach the insulating film, which has been peeled off the template, to the battery cell.

10. The film application method according to claim 9, characterized in that, Before attaching the insulating film, after peeling off the finishing paper, to the battery cell, the film-attaching method further includes: Obtain the position of the insulating film and the position of the battery cell; The position of the insulating film is compared with the position of the battery cell; The position of the insulating film is adjusted according to the comparison results so that the insulating film is aligned with the battery cell.

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