Film pasting device

Abstract

The utility model discloses a film pasting device. The film pasting device comprises a film pasting workbench; the first carrying assembly is used for carrying the battery pieces to the film pasting workbench; the film cutting mechanism comprises an adsorption platform, and a cutting knife is arranged on one side of the adsorption platform; and the second carrying assembly is provided with an adsorption device, and the second carrying assembly is used for pulling the film belt to the side of the adsorption platform after adsorbing the film belt from the adsorption platform and conveying the cut film belt to the film pasting workbench after the film belt is cut off by the cutting knife. According to the technical scheme, when the film pasting action is executed, the film belt is adsorbed to the adsorption platform of the film cutting mechanism in advance, the first carrying assembly carries a battery piece to the film pasting workbench, and the second carrying assembly pulls the film belt to the side of the adsorption platform after adsorbing the film belt from the adsorption platform; and after the cutting knife cuts off the film belt, the cut-off film belt is conveyed to the battery piece of the film pasting workbench. Through cooperation of a plurality of functional assemblies, the film pasting action of the battery piece can be automatically and continuously completed, the efficiency is higher, and the film pasting quality is better.

Description

Technical Field

[0001] This invention relates to the field of batteries, and in particular to a film application device. Background Technology

[0002] Batteries have developed rapidly in recent years. To prevent short circuits and scratches on the casing surface during transportation, handling, and assembly, protective films need to be wrapped around the battery surface. Currently, batteries are protected with PET film, which involves covering the top surface of the battery with a protective film. Traditionally, this is done manually, with workers holding the PET film and the battery casing and then applying the PET film to the top surface of the battery. Manual application is inefficient and prone to air bubbles, resulting in poor film quality.

[0003] In summary, the problems existing in the relevant technologies urgently need to be solved. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art and to provide a film application device.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A film application device, comprising:

[0007] Film application workbench;

[0008] A first transport assembly is used to transport the battery cells to the film application workbench;

[0009] A membrane cutting mechanism includes an adsorption platform, and a cutting blade is provided on one side of the adsorption platform;

[0010] The second conveying assembly is equipped with an adsorption device. The second conveying assembly is used to adsorb the film strip from the adsorption platform and pull the film strip to the side of the adsorption platform. After the film strip is cut by the cutting blade, the cut film strip is sent to the film application worktable.

[0011] In some implementations, in conjunction with the above methods, the membrane cutting mechanism further includes a lifting frame and a height adjustment component connected to the lifting frame. The adsorption platform is disposed on the lifting frame, which is provided with a guide rail and a first driving mechanism. The cutting blade is mounted on the guide rail via a slider. The first driving mechanism is used to drive the cutting blade to move along the guide rail to cut the membrane strip on one side of the adsorption platform.

[0012] In some implementations, in conjunction with the above methods, the cutting blade has a circular outer cutting edge, the cutting blade is rotatably mounted on the blade holder via a blade shaft, and the blade holder is mounted on the slider.

[0013] In some implementations, in conjunction with the above implementations, a battery cell loading mechanism and a battery cell unloading mechanism are also included. The battery cell loading mechanism is provided with a first battery cell lifting assembly, and the battery cell unloading mechanism is provided with a second battery cell lifting assembly. The first conveying assembly is used to convey the battery cells from the first battery cell lifting assembly to the film-applying worktable, and the second conveying assembly is able to convey the film-applying battery cells to the second battery cell lifting assembly.

[0014] In some implementations, in conjunction with the above methods, the second conveying component includes an adsorption device mounting arm and a linear module. The adsorption device mounting arm is provided with a second driving mechanism for driving the adsorption device to move up and down. The battery cell unloading mechanism, the film application worktable, and the film cutting mechanism are arranged sequentially along the driving direction of the linear module. The linear module can drive the adsorption device to switch between the battery cell unloading mechanism, the film application worktable, and the film cutting mechanism.

[0015] In some implementations, the film application worktable is provided with adsorption holes, in combination with the above implementation methods.

[0016] In some implementations, the film-applying worktable, the adsorption platform, and the adsorption device are made of porous ceramic. The adsorption device is mounted on the second driving mechanism via a transition plate. The transition plate has a protective plate around the adsorption device. The film-applying worktable has a floating load-bearing plate that cooperates with the protective plate around its periphery.

[0017] In some implementations, in conjunction with the above methods, the film-applying worktable is equipped with a heater, and the bottom of the film-applying worktable is equipped with a third drive mechanism for driving the heater to move up and down.

[0018] In conjunction with the above implementation methods, some implementation methods also include a take-up assembly, which includes a sleeve, an air shaft, and a motor. The sleeve is fitted onto the air shaft, the air shaft is mounted on a bearing seat, the motor drives the air shaft to rotate, and the sleeve is provided with a limit ring.

[0019] In some implementations, in conjunction with the above implementations, a roller assembly is also included. The roller assembly is disposed between the take-up assembly and the film cutting mechanism. The roller assembly includes a first transition roller and a second transition roller. The first transition roller is fixedly installed on the body of the film applicator, and the second transition roller is parallel to the first transition roller. The second transition roller is installed on the body of the film applicator via a floating shaft.

[0020] One of the above technical solutions has at least one of the following advantages or beneficial effects: In the technical solution of this utility model, during the film application process, the film strip is pre-adsorbed onto the adsorption platform of the film cutting mechanism. The first transport component moves the battery cell to the film application worktable. The second transport component adsorbs the film strip from the adsorption platform and pulls the film strip to the side of the adsorption platform. After the cutting blade cuts the film strip, the cut film strip is delivered to the battery cell on the film application worktable. Through the coordinated operation of multiple functional components, this utility model can automatically and continuously complete the battery cell film application process, resulting in higher efficiency and better film application quality.

[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0023] Figure 1 This is a front view of the structure of one embodiment of this utility model;

[0024] Figure 2 This is a top view of an embodiment of the present invention;

[0025] Figure 3 This is a front view of the membrane cutting mechanism structure of one embodiment of this utility model;

[0026] Figure 4 This is a side view of the membrane cutting mechanism structure according to an embodiment of the present invention;

[0027] Figure 5 This is a cross-sectional view of the film-applying workbench structure according to an embodiment of this utility model;

[0028] Figure 6 This is a top view of the film-applying workbench structure according to an embodiment of this utility model;

[0029] Figure 7 This is a top view of the structure of the second conveying component according to an embodiment of the present invention;

[0030] Figure 8 This is a side view of the structure of the second conveying component according to an embodiment of the present invention;

[0031] Figure 9 This is a schematic diagram of the roll-taking assembly structure according to an embodiment of the present invention;

[0032] Figure 10 This is a schematic diagram of the roller assembly structure of one embodiment of the present invention. Detailed Implementation

[0033] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0034] In this utility model, when directions (up, down, left, right, front, and back) are described, it is only for the convenience of describing the technical solution of this utility model, and does not indicate or imply that the technical features referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this utility model.

[0035] In this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," "exceeding," etc. are understood to exclude the stated number; "above," "below," "within," etc. are understood to include the stated number. In the description of this utility model, if "first" or "second" is used, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0036] In this utility model, unless otherwise explicitly defined, terms such as "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a direct connection or an indirect connection through an intermediate medium; a fixed connection, a detachable connection, or an integrally formed connection; a mechanical connection, an electrical connection, or a connection capable of mutual communication; or the internal connection of two components or the interaction between two components. Those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model based on the specific content of the technical solution.

[0037] See Figure 1 , Figure 2 , Figure 3 , Figure 8 This utility model provides a film-applying device, including a film-applying worktable 100, a first transport component 200, a film cutting mechanism 300, and a second conveying component 400. The first transport component 200 is used to transport the battery cell to the film-applying worktable 100. The film cutting mechanism 300 includes an adsorption platform 301, and a cutting blade 302 is provided on one side of the adsorption platform 301. The second conveying component 400 is provided with an adsorption device 401. The second conveying component 400 is used to adsorb the film strip from the adsorption platform 301 and pull the film strip 500 to the side of the adsorption platform 301, and after the cutting blade 302 cuts the film strip 500, it sends the cut film strip 500 to the film-applying worktable 100.

[0038] Combination Figure 1 , Figure 2 In this invention, during the film application process, the film strip 500 is pre-adsorbed onto the adsorption platform 301 of the film cutting mechanism 300. The first transport component 200 transports the battery cell to the film application worktable 100. The second transport component 400 adsorbs the film strip 500 from the adsorption platform 301 and pulls it to the side of the platform. After the cutting blade 302 cuts the film strip 500, it is delivered to the battery cell on the film application worktable 100. Through the coordinated operation of multiple functional components, this invention can automatically complete the battery cell film application process, resulting in higher efficiency and better application quality.

[0039] The cutting blade 302 can be a fixed cutting blade 302, that is, the cutting blade 302 is fixedly set on one side of the adsorption platform 301. When it is necessary to cut the film belt 500, the second conveying component 400 contacts the film belt 500 with the cutting blade 302 to cut the film belt 500.

[0040] In some embodiments, see Figure 3 , Figure 4 The membrane cutting mechanism 300 also includes a lifting frame 303 and a height adjustment component 304 connected to the lifting frame 303. The adsorption platform 301 is disposed on the lifting frame 303. The height of the adsorption platform 301 can be adjusted by the height adjustment component 304 so that the height of the adsorption platform 301 is flush with that of the membrane belt 500, thereby allowing the adsorption platform 301 to more stably adsorb the membrane belt 500.

[0041] The lifting frame 303 is provided with a guide rail 305 and a first driving mechanism 306. The cutting blade 302 is mounted on the guide rail 305 by a slider. The first driving mechanism 306 is used to drive the cutting blade 302 to move along the guide rail 305 to cut the film strip 500 on one side of the adsorption platform 301.

[0042] When it is not necessary to cut the membrane strip 500, the cutting blade 302 avoids the adsorption platform 301. The cutting blade 302 is located at one end of the guide rail 305, so that the membrane strip 500 can be more stably adsorbed onto the adsorption platform 301. When it is necessary to cut the membrane strip 500, it is transversely cut under the drive of the first driving mechanism 306, thus realizing the function of cutting the membrane strip 500.

[0043] The first drive mechanism 306 may be a cylinder, an electric lead screw, etc., for example, in some embodiments, see [link to relevant documentation]. Figure 3 , Figure 4 The first drive mechanism 306 uses a synchronous belt, which is driven by a motor to drive the pulley. The cutting blade 302 is connected to the synchronous belt, and the motor drives the synchronous belt to further drive the cutting blade 302 to reciprocate, thus completing the cutting action.

[0044] In some embodiments, see Figure 3, Figure 4 The cutting blade 302 has a circular outer cutting edge. The cutting blade 302 is rotatably mounted on a blade holder 308 via a blade shaft 307, and the blade holder 308 is mounted on a slider. When the cutting blade 302 cuts the film strip 500, the first driving mechanism 306 drives the blade holder 308 to move along the guide rail 305, and the cutting blade 302 rotates around the blade shaft 307. Simultaneously, the outer cutting edge completes the cutting of the film strip 500. In this embodiment, the cutting blade 302 adopts a rolling cutting method, effectively improving the cutting effect of the film strip 500 and avoiding accidental damage to the film strip 500.

[0045] In some embodiments, see Figure 1 , Figure 2 The film-applying device also includes a battery cell feeding mechanism 600 and a battery cell unloading mechanism 700. The battery cell feeding mechanism 600 is equipped with a first battery cell lifting assembly, which enables continuous feeding of battery cells. The battery cell unloading mechanism 700 is equipped with a second battery cell lifting assembly, which enables the storage of battery cells after film application. The first transport assembly 200 can be a suction cup robot, which is used to transport the battery cells from the first battery cell lifting assembly to the film-applying worktable 100. The second transport assembly 400 can transport the film-applied battery cells to the second battery cell lifting assembly.

[0046] Further, see Figure 1 , Figure 2 , Figure 7 , Figure 8 The second conveying assembly 400 includes an adsorption device mounting arm 402 and a linear module 403. The adsorption device mounting arm 402 is equipped with a second driving mechanism 404 for driving the adsorption device 401 to rise and fall. The second driving mechanism 404 can be a cylinder, an electric lead screw, etc. The cell feeding mechanism 700, the film application table 100, and the film cutting mechanism 300 are arranged sequentially along the driving direction of the linear module 403. The linear module 403 can drive the adsorption device 401 to switch between the cell feeding mechanism 700, the film application table 100, and the film cutting mechanism 300. In this embodiment, the second conveying assembly 400 can switch between the film application table 100 and the film cutting mechanism 300 to deliver the cut film strip 500 to the film application table 100. The second conveying assembly 400 can also switch between the film application table 100 and the cell feeding mechanism 700 so that after the film application table 100 completes the cell application, the cell is delivered to the cell feeding mechanism 700. This utility model, through the reasonable arrangement of the battery cell feeding mechanism 700, the film application worktable 100 and the film cutting mechanism 300, can realize multiple switching functions by only the lateral drive of the linear module 403, simplifying the structural configuration of the second conveying component 400.

[0047] In some embodiments, see Figure 6 The film application worktable 100 is equipped with adsorption holes for adsorbing batteries.

[0048] Furthermore, the film application workbench 100, the adsorption platform 301, and the adsorption device 401 are made of porous ceramic. Porous ceramic has a high pore density and uniform pore size, so it will not produce adsorption marks when adsorbing the film.

[0049] Among them, see Figure 5 , Figure 8 The adsorption device 401 is installed on the second drive mechanism 404 via a transition plate 405. The transition plate 405 has a protective plate 406 around the adsorption device 401. The film application worktable 100 has a floating load-bearing plate 101 around its periphery that cooperates with the protective plate 406.

[0050] In some embodiments, see Figure 5 , Figure 6 Each battery cell is protected by a protective film applied to one side. By locally heating the battery cell, the higher-temperature areas adhere to the PET film. The film-applying worktable 100 is equipped with a heater 102, and a third drive mechanism 103 at the bottom of the worktable 100 drives the heater 102 to move up and down. The heater 102 is located within the worktable 100 and heats the battery cell after pressure is applied. The heating is localized, covering the non-working area surrounding the battery cell, with a heating area of ​​5-7% of the battery area. The heating method is electric heating wire heating, with a temperature range of 200℃-300℃.

[0051] In some embodiments, see Figure 1 , Figure 2 , Figure 9 The film application device also includes a take-up assembly 800, which includes a sleeve 801, an air shaft 802, and a motor 803. The sleeve 801 is fitted onto the air shaft 802, which is mounted on a bearing seat 804. The motor 803 drives the air shaft 802 to rotate. The sleeve 801 is provided with a limiting ring 805, which is used to position and fix the film strip 500 to prevent it from moving during unwinding. At least two limiting rings 805 are provided to better fix the film strip 500 during unwinding. The limiting rings 805 are movably connected to the sleeve 801. When installing the film strip 500 roll, the limiting rings 805 can be removed, and after the film strip 500 roll is successfully installed, the limiting rings 805 are reinstalled.

[0052] The sleeve 801 is also equipped with an anti-slip component. The function of the anti-slip component is to increase the friction between the membrane belt 500 and the sleeve 801 and prevent the membrane belt 500 from moving during rotation. The anti-slip component can be a belt.

[0053] In some embodiments, see Figure 1 , Figure 2 , Figure 10 The film application device also includes a roller assembly 900, which is disposed between the take-up assembly 800 and the film cutting mechanism 300. The film belt 500 is released through the take-up assembly 800, its conveying direction is changed by the roller assembly 900, and finally it is sent to the film cutting mechanism 300. The roller assembly 900 includes a first transition roller 901 and a second transition roller 902. The first transition roller 901 is fixedly installed on the body of the film application device, and the second transition roller 902 is parallel to the first transition roller 901. The second transition roller 902 is installed on the body of the film application device through a floating shaft to ensure that the film belt 500 has sufficient tension during operation.

[0054] The specific operation steps of some embodiments of this utility model are as follows:

[0055] 1. The membrane belt 500 roll is fixed on the take-up assembly 800, the membrane belt 500 passes around the roller assembly 900, the front end of the membrane belt 500 is adsorbed on the adsorption platform 301, and the head of the membrane belt 500 is flush with the cutting blade 302;

[0056] 2. The adsorption device 401 of the second conveying component 400 moves above the adsorption platform 301, descends, and picks up the membrane belt 500;

[0057] 3. The adsorption device 401 of the second conveying component 400 rises and moves horizontally to directly above the cutting blade 302 of the membrane cutting mechanism 300, with the horizontal movement distance being the required cutting length of the membrane belt 500;

[0058] 4. The adsorption device 401 of the second conveying component 400 descends and presses down the cutting blade 302, while the adsorption platform 301 of the membrane cutting mechanism 300 tightly adheres to the membrane belt 500.

[0059] 5. The cutting blade 302 of the membrane cutting mechanism 300 moves to cut the membrane strip 500;

[0060] 6. The first transport component 200 transports the battery cells from the first battery cell lifting component to above the film application worktable 100;

[0061] 7. The adsorption device 401 of the second conveying assembly 400 moves the cut membrane belt 500 above the workpiece, lowers it and maintains pressure;

[0062] 8. Heater 102 rises and locally heats the battery cell, bonding the film strip 500 to the battery cell;

[0063] 9. The adsorption device 401 of the second conveying component 400 conveys the battery cell with the film belt 500 attached to it to the second battery cell lifting component;

[0064] 10. The second conveying component 400 and the first conveying component 200 return to their origin, completing one work cycle.

[0065] In the description of this specification, references to terms such as "example," "embodiment," or "some embodiments" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0066] Of course, the present invention is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A sticker attaching apparatus characterized by comprising: The application relates to a film pasting workbench and a film cutting mechanism. The film cutting mechanism comprises an adsorption platform, one side of the adsorption platform is provided with a cutting knife, and a second conveying assembly is provided with an adsorption device. The film cutting mechanism further comprises a lifting frame and a height adjusting assembly connected with the lifting frame, the adsorption platform is arranged on the lifting frame, the lifting frame is provided with a guide rail and a first driving mechanism, the cutting knife is installed on the guide rail through a sliding block, and the first driving mechanism is used for driving the cutting knife to move along the guide rail so as to cut the film strip on one side of the adsorption platform. The cutting knife has a circular outer cutting edge, the cutting knife is rotatably installed on a knife seat through a knife shaft, and the knife seat is installed on the sliding block. The film pasting workbench is provided with an adsorption hole.

2. The device according to claim 1, wherein The film pasting workbench, the adsorption platform and the adsorption device adopt porous ceramics, the adsorption device is installed on the second driving mechanism through a transition plate, the transition plate is provided with a guard plate on the periphery of the adsorption device, and the periphery of the film pasting workbench is provided with a floating force bearing plate matched with the guard plate.

3. The device according to claim 2, wherein The film pasting workbench is provided with a heater, and the bottom of the film pasting workbench is provided with a third driving mechanism used for driving the heater to lift.

4. The device according to claim 1, wherein The application further comprises a winding taking assembly, the winding taking assembly comprises a sleeve, an air inflation shaft and a motor, the sleeve is sleeved on the air inflation shaft, the air inflation shaft is installed on a bearing seat, the motor drives the air inflation shaft to rotate, and the sleeve is provided with a limiting ring.

5. The device according to claim 4, wherein The application further comprises a roller assembly, the roller assembly is arranged between the winding taking assembly and the film cutting mechanism, the roller assembly comprises a first transition roller and a second transition roller, the first transition roller is fixedly installed on a machine body of the film pasting device, the second transition roller is parallel to the first transition roller, and the second transition roller is installed on the machine body of the film pasting device through a floating shaft.

6. The device according to claim 5, wherein ​ 7. The device according to claim 6, wherein ​ 8. The device according to claim 1, wherein ​ 9. The device according to claim 1, wherein ​ 10. The device according to claim 9, wherein ​

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