Film cutting device

Abstract

The utility model discloses a kind of film cutting devices, belong to battery technical field, including the glue pressing mechanism for pressing or loosening protective film, the glue pulling mechanism for pulling protective film from glue pressing mechanism to press tightly on pressing table and press tightly on pressing table, and film cutting mechanism, film cutting mechanism includes the base with film cutting groove, film cutting driver is installed on base, transmission belt is connected with film cutting driver, and film cutting component is connected with transmission belt, the film cutting component between the glue pressing mechanism and the pressing table, when the glue pressing mechanism press tightly the protective film, and the protective film is press tightly on pressing table by the glue pulling mechanism, film cutting driver drives transmission belt to drive film cutting component and move along the length extension direction of film cutting groove to cut the protective film.The utility model reaches in battery and protective film coating process, improve the stability of film cutting quality, it is favorable to improve the technical effect of the consistency and operation efficiency of battery film.

Description

Technical Field

[0001] This utility model belongs to the field of battery technology, and specifically relates to a film cutting device. Background Technology

[0002] In battery manufacturing, blue film coating is a crucial step. By coating the battery surface with blue film, the battery and blue film form an integrated structure, providing better protection for the battery as an insulating protective film during transportation and distribution. Current technologies typically employ manual operation, where operators manually cut the blue film and then coat it onto the battery. Alternatively, a semi-automated method is used, where a cylinder-driven crankshaft mechanism converts the linear motion of the cylinder into the reciprocating rotation of a cutter in a horizontal plane to cut the film. The cut blue film is then vacuum-adsorbed onto the battery surface, and rollers press the blue film and battery together. However, manual operation is prone to uneven cut edges and long cutting cycles, affecting coating efficiency and product quality. Semi-automated methods have poor control over the cutter's trajectory, easily leading to film misalignment, wrinkles, or tears during cutting, affecting the dimensional accuracy and coating quality of the blue film, and reducing battery coating consistency and yield.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the poor stability of the film cutting quality during the battery and protective film coating process reduces the consistency of battery coating and the efficiency of operation.

[0005] To solve the above-mentioned technical problems, this utility model provides a film cutting device, which includes a pressing mechanism for pressing or releasing a protective film, a pulling mechanism for pulling the protective film from the pressing mechanism to a pressing table and pressing it on the pressing table, and a film cutting mechanism. The film cutting mechanism includes a base with a film cutting groove, a film cutting driver mounted on the base, a transmission belt connected to the film cutting driver, and a film cutting assembly connected to the transmission belt. The film cutting assembly is located between the pressing mechanism and the pressing table. When the pressing mechanism presses the protective film and the protective film is pressed on the pressing table by the pulling mechanism, the film cutting driver drives the transmission belt to move the film cutting assembly along the length extension direction of the film cutting groove to cut the protective film.

[0006] Optionally, the film-cutting driver includes a film-cutting driving component and a driving wheel and a driven wheel arranged at intervals. The driving wheel is connected to the drive shaft of the film-cutting driving component, and the transmission belt is wound around the driving wheel and the driven wheel respectively. The film-cutting assembly includes a slider connected to the transmission belt and a cutter. One end of the cutter is connected to the slider, and the other end of the cutter passes through the film-cutting groove and is used to cut the protective film. The film-cutting driving component drives the driving wheel to move the transmission belt and the slider, so that the cutter moves along the length extension direction of the film-cutting groove.

[0007] Optionally, the film cutting device further includes a support frame, a first lifting driver and a second lifting driver respectively mounted on the support frame, a first roller shaft rotatably connected to the base, and a second roller shaft rotatably connected to the pressing table. The first lifting driver is connected to the base, and the pressing table is connected to the second lifting driver. The first lifting driver drives the base and the second lifting driver drives the pressing table, causing the first roller shaft and the second roller shaft to move closer or further apart.

[0008] Optionally, the adhesive-pulling mechanism includes a guide rail assembly fixed to the support frame and extending from the pressing table towards the base, two first support rods slidably connected to the guide rail assembly, an adhesive-pulling rod, an adhesive-pulling driver, and a third lifting driver connected to the two first support rods respectively. The first support rods have first guide grooves extending along their length. The two ends of the adhesive-pulling rod pass through the two first guide grooves respectively. The adhesive-pulling driver's extension rod is connected to one end of the adhesive-pulling rod, and the adhesive-pulling driver drives the extension rod to move the adhesive-pulling rod along the length of the first guide groove. The third lifting driver drives the first support rod to move back and forth between the cutting groove and the pressing table along the guide rail assembly.

[0009] Optionally, the film cutting device further includes a protective cover mounted on the support frame, the protective cover and the support frame forming a protective space, and the protective film located on one side of the protective cover; the pressing mechanism includes two second support rods mounted on the support frame, a pressing rod, and a pressing driver mounted on the support frame, the second support rods having second guide grooves extending along the length direction of the second support rods; the two ends of the pressing rod respectively pass through the two second guide grooves, the pressing rod and the two second support rods are located within the protective space; the pressing telescopic rod of the pressing driver is connected to one end of the pressing rod, wherein the pressing driver drives the pressing telescopic rod to move the pressing rod along the length extension direction of the second guide groove.

[0010] Optionally, the protective cover includes a first protective plate fixedly connected to the support frame, a second protective plate fixedly connected to the first protective plate, and the pressure rod and the two first support rods are all located between the second protective plate and the support frame.

[0011] Optionally, the film cutting device further includes a front pushing platform, which is arranged at intervals with the second protective plate. The front pushing platform is used to transport the battery to be coated to the conveying channel formed between the first roller and the second roller.

[0012] Optionally, the film cutting device further includes a rear discharge platform, which includes a discharge bracket and a rotating roller mounted on the discharge bracket. The front pushing platform pushes the battery to be coated to move toward the roller.

[0013] Optionally, the rear discharge platform further includes a conveyor driver installed on the discharge bracket, the conveyor driver being connected to the rolling shaft and used to drive the rolling shaft to rotate.

[0014] Optionally, the rear discharge platform further includes a support platform, which is connected to the discharge bracket, and the platform surface of the support platform and the top rolling surface of the rolling shaft are stepped.

[0015] Beneficial effects: This invention provides a film-cutting device. A pressing mechanism tightens or loosens the protective film, while a pulling mechanism pulls the protective film from the pressing mechanism onto a pressing table and presses it firmly onto the pressing table. The film-cutting mechanism has a cutting groove on its base, a film-cutting driver mounted on the base, a transmission belt connected to the driver, and a film-cutting assembly connected to the transmission belt. The film-cutting assembly is located between the pressing mechanism and the pressing table. When the pressing mechanism tightens the protective film and the pulling mechanism presses it onto the pressing table, the film-cutting driver drives the transmission belt to move the film-cutting assembly along the length of the cutting groove to cut the protective film. Thus, during the battery and protective film coating process, the pulling mechanism pulls one end of the protective film onto the pressing table and presses it firmly, while the pressing mechanism presses and fixes the other end of the protective film, ensuring the protective film remains flat and stably tensioned during cutting. By activating the film-cutting driver, the drive belt moves the film-cutting assembly along the film-cutting groove on the base. The film-cutting groove constrains the movement trajectory of the assembly, ensuring that it cuts the protective film along a fixed path. This improves the accuracy and consistency of the cutting path, resulting in neat cuts on the protective film. It also prevents the protective film from shifting or tearing during cutting, thus improving the stability of the film-cutting quality. This, in turn, enhances the consistency and efficiency of subsequent battery pack coating. Therefore, this achieves the technical effect of improving the stability of film-cutting quality and enhancing the consistency and efficiency of battery pack coating during the battery and protective film coating process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a film cutting device provided in an embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of a film cutting driver, a transmission belt, and a slider in a film cutting device provided for an embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of the structure of a protective cover in a film cutting device provided in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the support frame in a film cutting device provided in an embodiment of the present invention. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] To enable those skilled in the art to better understand the solutions of this application, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0023] In the embodiments of this application, "at least one" refers to one or more; "multiple" refers to two or more. In the description of this application, the terms "first," "second," "third," etc., are used only for the purpose of distinguishing descriptions and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying order.

[0024] In this specification, references such as "one embodiment" or "some embodiments" mean that one or more embodiments of this application include the specific features, structures, or characteristics described in connection with that embodiment. Therefore, the terms "comprising," "including," "having," and variations thereof in this specification all mean "including but not limited to," unless otherwise specifically emphasized. It should be noted that in the embodiments of this application, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone.

[0025] It should be noted that, in the embodiments of this utility model, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. Furthermore, in the embodiments of this application, "connection" can also be understood as an electrical connection; the connection between two electrical components can be a direct or indirect connection between the two electrical components. For example, the connection between A and B can be a direct connection between A and B, or an indirect connection between A and B through one or more other electrical components. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this utility model are for illustrative purposes only and are not intended to limit the utility model.

[0026] This utility model provides a film-cutting device; please refer to [link to relevant documentation]. Figures 1 to 4 As shown, Figure 1 This is a schematic diagram of the structure of a film cutting device provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of the film cutting driver, transmission belt, and slider in a film cutting device provided by an embodiment of this utility model. Figure 3 This is a schematic diagram of the structure of the protective cover in a film cutting device provided in an embodiment of this utility model. Figure 4 This is a schematic diagram of the support frame in a film cutting device provided in an embodiment of the present invention. The present invention provides a film cutting device comprising a pressing mechanism 1, a pulling mechanism 2, and a cutting mechanism 3. The pressing mechanism 1 is used to press or release the protective film 106. The pulling mechanism 2 is used to pull the protective film 106 from the pressing mechanism 1 onto the pressing table 4 and press the protective film 106 onto the pressing table 4. The cutting mechanism 3 comprises a base 31, a cutting driver 32, a transmission belt 33, and a cutting assembly 34. The base 31 has a cutting groove 311. The cutting driver 32 is mounted on the base 31. The transmission belt 33 is connected to the cutting driver 32. The cutting assembly 34 is connected to the transmission belt 33 and is located between the pressing mechanism 1 and the pressing table 4. When the pressing mechanism 1 presses the protective film 106 and the protective film 106 is pressed onto the pressing table 4 by the pulling mechanism 2, the cutting driver 32 drives the transmission belt 33 to move the cutting assembly 34 along the length extension direction of the cutting groove 311 to cut the protective film 106.

[0027] The film-cutting groove 311 on the base 31 can extend laterally, that is, perpendicular to the conveying direction of the protective film 106, such as... Figure 1As shown, the protective film 106 is conveyed vertically from top to bottom, while the cutting groove 311 extends horizontally from left to right, ensuring the stability of the cutting assembly 34 during movement and guiding its reciprocating movement in the aforementioned left-right direction. The cutting driver 32 can be mounted on the rear side of the base 31, with the protective film 106 located on the front side of the base 31, which provides support for the cutting driver 32. When the protective film 106 is pressed and fixed by the adhesive pressing mechanism 1 and the adhesive pulling mechanism 2, and is in a tensioned state, the cutting driver 32 starts, driving the cutting assembly 34 along the length of the cutting groove 311 via the transmission belt 33, thus cutting the protective film 106. After cutting, the cutting assembly 34 returns to its initial position under the control of the cutting driver 32, awaiting the next cutting operation, or remains at the position where cutting was completed, allowing for further cutting during the return to the initial position.

[0028] In this embodiment, the protective film 106 is pressed or released by the pressing mechanism 1, and the pulling mechanism 2 pulls the protective film 106 from the pressing mechanism 1 onto the pressing table 4. The pulling mechanism 2 then presses the protective film 106 onto the pressing table 4. The film cutting mechanism 3 has a film cutting groove 311 on the base 31, a film cutting driver 32 is mounted on the base 31, a transmission belt 33 is connected to the film cutting driver 32, and a film cutting assembly 34 is connected to the transmission belt 33. The film cutting assembly 34 is located between the pressing mechanism 1 and the pressing table 4. When the pressing mechanism 1 presses the protective film 106 and the protective film 106 is pressed onto the pressing table 4 by the pulling mechanism 2, the film cutting driver 32 drives the transmission belt 33 to move the film cutting assembly 34 along the length extension direction of the film cutting groove 311 to cut the protective film 106. During the process of wrapping the battery 105 with the protective film 106, the adhesive pulling mechanism 2 pulls one end of the protective film 106 onto the pressing table 4 and presses it firmly against the pressing table 4 for fixation. At the same time, the adhesive pressing mechanism 1 presses and fixes the other end of the protective film 106, ensuring that the protective film 106 remains flat and under stable tension during cutting. By activating the film cutting driver 32, the transmission belt 33 is driven to move the film cutting assembly 34 along the film cutting groove 311 on the base 31. The film cutting groove 311 constrains the movement trajectory of the film cutting assembly 34, restricting it to cut the protective film 106 along a fixed trajectory. This improves the accuracy and consistency of the cutting path, forming neat cuts on the protective film 106, while preventing the protective film 106 from shifting or tearing during cutting. This improves the stability of the film cutting quality and enhances the consistency and efficiency of subsequent battery 105 wrapping. This achieves the technical effect of improving the stability of the film cutting quality during the coating process of battery 105 and protective film 106, which is conducive to improving the consistency of battery 105 coating and work efficiency.

[0029] In one embodiment, the film cutting driver 32 includes a film cutting driver 321, a driving wheel 322, and a driven wheel 323. The driving wheel 322 and the driven wheel 323 are arranged at intervals. The driving wheel 322 is connected to the drive shaft of the film cutting driver 321, and the transmission belt 33 is wound around the driving wheel 322 and the driven wheel 323 respectively. The film cutting driver 321 includes a motor or a cylinder. The film cutting assembly 34 includes a slider 341 and a cutter 342. The slider 341 is connected to the transmission belt 33. One end of the cutter 342 is connected to the slider 341, and the other end of the cutter 342 passes through the film cutting groove 311 and is used to cut the protective film 106. The film cutting driver 321 drives the driving wheel 322 to move the transmission belt 33 and the slider 341, so that the cutter 342 moves along the length extension direction of the film cutting groove 311. During operation, the film-cutting drive unit 321 drives the drive wheel 322 to rotate, which in turn drives the transmission belt 33 to move. The transmission belt 33 then drives the slider 341 connected to it to move along a fixed trajectory, causing the cutter 342 to move along the length extension direction of the film-cutting groove 311, thereby cutting the protective film 106. In other words, the transmission belt 33 between the drive wheel 322 and the driven wheel 323 transmits power, converting rotational motion into linear motion of the cutter 342. The connection between the slider 341 and the transmission belt 33 helps improve the stability of the cutter 342's movement. When the film-cutting drive unit 321 is activated, the rotational motion of the drive wheel 322 is transmitted to the slider 341 via the transmission belt 33, causing the cutter 342 to move smoothly along the length extension direction of the film-cutting groove 311, forming a neat cut on the protective film 106. This effectively constrains the movement trajectory of the film-cutting assembly 34, preventing deviation during the cutting process and improving the accuracy and consistency of the cutting path, while also preventing the protective film 106 from tearing during the cutting process.

[0030] In some embodiments, the film-cutting device provided by this utility model further includes a support frame 5, a first lifting driver 6, a second lifting driver 61, a first roller 7, and a second roller 71. The first lifting driver 6 and the second lifting driver 61 are respectively mounted on the support frame 5. The first lifting driver 6 is connected to the base 31, and the pressing table 4 is connected to the second lifting driver 61. The first roller 7 is rotatably connected to the base 31, and the second roller 71 is rotatably connected to the pressing table 4. The first lifting driver 6 drives the base 31 and the second lifting driver 61 to drive the pressing table 4, causing the first roller 7 and the second roller 71 to move closer or further apart. The first lifting driver 6 can drive the base 31 to move up and down. For example, the first lifting driver 6 can be a combination of a motor and a lead screw, whereby the motor drives the lead screw to rotate, and the rotating lead screw drives the base 31 to move up and down. The second lifting driver 61 can drive the pressing table 4 to move up and down. For example, the second lifting driver 61 can be a combination of a motor and a lead screw. The motor drives the lead screw to rotate, and the rotating lead screw drives the pressing table 4 to move up and down, thereby causing the first roller shaft 7 and the second roller shaft 71 to move closer or further apart. This can accommodate protective films 106 and batteries 105 of different thicknesses, improving the adaptability of the coating. That is, through the coordinated work of the first lifting driver 6 and the second lifting driver 61, the distance between the base 31 and the pressing table 4 is controlled, thus adjusting the gap between the first roller shaft 7 and the second roller shaft 71. When processing batteries 105 of different thicknesses, the gap can be adjusted to meet different working requirements. Simultaneously, when pushing the battery 105 towards the rear discharge platform 10, the first roller shaft 7 and the second roller shaft 71 can smoothly wrap the cut protective film 106 around the surface of the battery 105, which helps reduce friction and stretching, and improves the consistency of the battery 105 coating.

[0031] In some embodiments, the adhesive-pulling mechanism 2 of the film-cutting device provided by this utility model includes a guide rail assembly 21, two first support rods 22, an adhesive-pulling rod 23, an adhesive-pulling driver 24, and a third lifting driver (not shown). The adhesive-pulling driver 24 includes a motor or a cylinder. The guide rail assembly 21 is fixed on the support frame 5 and extends from the pressing table 4 toward the base 31. The two first support rods 22 are slidably connected to the guide rail assembly 21. The first support rods 22 are provided with first guide grooves 221 extending along the length of the first support rods 22. The two ends of the adhesive-pulling rod 23 pass through the two first guide grooves respectively. 221, the adhesive extension rod of the adhesive pull driver 24 is connected to one end of the adhesive pull rod 23. The adhesive pull driver 24 drives the adhesive extension rod to move the adhesive pull rod 23 along the length extension direction of the first guide groove 221. At the same time, the adhesive extension rod of the adhesive pull driver 24 can be connected to one end of the adhesive pull rod 23 through a magnetic switch. The magnetic switch controls the adhesive pull rod 23 to be in a rotatable state or a non-rotatable state. For example, when the adhesive pull rod 23 needs to press the protective film 106, the adhesive pull rod 23 is adjusted to a non-rotatable state. When the protective film 106 is wrapped around the battery 105, the adhesive pull rod 23 is adjusted to a rotatable state. The third lifting actuator is connected to the two first support rods 22 respectively. The third lifting actuator drives the first support rods 22 to move back and forth between the cutting groove 311 and the pressing table 4 along the guide rail assembly 21. For example, the third lifting actuator can be a combination of a motor and a lead screw. The two first support rods 22 are fixedly connected to the mounting plate, and the mounting plate is slidably connected to the guide rail assembly 21. The motor drives the lead screw to rotate, and the rotating lead screw drives the two first support rods 22 fixed to the mounting plate to move along the guide rail assembly 21. Through the sliding connection between the guide rail assembly 21 and the first support rods 22, and the ability of the adhesive pulling rod 23 to move within the first guide groove 221, the movement control of the adhesive pulling rod 23 in both horizontal and vertical directions can be realized. The adhesive-pulling driver 24 drives the adhesive-pulling rod 23 to move horizontally, allowing it to move closer to or further away from the protective film 106. The third lifting driver controls the vertical movement of the first support rod 22 to raise and lower the adhesive-pulling rod 23, enabling the adhesive-pulling mechanism 2 to pull the protective film 106 from the pressing mechanism 1 to the pressing table 4 and press it firmly onto the pressing table 4. Additionally, when the adhesive-pulling rod 23 needs to press the protective film 106, it can be adjusted to a non-rotating state to improve the stability of the pressing force. When the protective film 106 needs to be wrapped around the battery 105, the adhesive-pulling rod 23 can be adjusted to a rotating state to facilitate the wrapping operation of the protective film 106.

[0032] In some embodiments, the film-cutting device provided by this utility model further includes a protective cover 8, which is mounted on a support frame 5. The protective cover 8 and the support frame 5 enclose a protective space, and the protective film 106 is located on one side of the protective cover 8. The adhesive pressing mechanism 1 includes two second support rods 11, an adhesive pressing rod 13, and an adhesive pressing driver 14. The adhesive pressing driver 14 includes a motor or a cylinder. The two second support rods 11 are mounted on the support frame 5. The second support rods 11 have second guide grooves 12 extending along the length direction of the second support rods 11. The two ends of the adhesive pressing rod 13 pass through the two second guide grooves 12 respectively. The adhesive pressing rod 13 and the two second support rods 11 are located in the protective space. Inside, the pressure-pressing actuator 14 is mounted on the support frame 5. The pressure-pressing telescopic rod of the pressure-pressing actuator 14 is connected to one end of the pressure-pressing rod 13. The pressure-pressing actuator 14 drives the telescopic rod to move the pressure-pressing rod 13 along the length extension direction of the second guide groove 12. Simultaneously, the telescopic rod of the pressure-pressing actuator 14 can be connected to one end of the pressure-pressing rod 13 via a magnetic switch. The magnetic switch can control the pressure-pressing rod 13 to be in a rotatable or non-rotatable state. For example, when the pressure-pressing rod 13 needs to press the protective film 106, it is adjusted to a non-rotatable state; when the protective film 106 is wrapped around the battery 105, the pressure-pressing rod 13 is adjusted to a rotatable state. The protective cover 8 effectively protects the film-cutting process from external environmental interference and also improves operational safety. The pressure-pressing actuator 14 drives the pressure-pressing rod 13 to move along the second guide groove 12 via the telescopic rod, which can be used to control the pressure-pressing position. When it is necessary to press the protective film 106, the pressure rod 13 can be adjusted to a non-rotatable state, which can improve the stability of the pressing force. When it is necessary to wrap the protective film 106 onto the battery 105, the pressure rod 13 can be adjusted to a rotatable state, which facilitates the wrapping operation of the protective film 106, improves the stability of the protective film 106 during the cutting process, and at the same time improves the safety and reliability of the operation.

[0033] In some embodiments, the protective cover 8 of the film cutting device provided by this utility model includes a first protective plate 81 and a second protective plate 82. The first protective plate 81 is fixedly connected to the support frame 5, and the second protective plate 82 is fixedly connected to the first protective plate 81. The pressure rod 13 and the two first support rods 22 are located between the second protective plate 82 and the support frame 5. The first protective plate 81 and the second protective plate 82 can effectively surround the working area, that is, the pressure rod 13 and the first support rods 22 are placed in the space between the second protective plate 82 and the support frame 5 to form a relatively closed working environment, which is conducive to maintaining a stable working environment, reducing the influence of external factors on cutting accuracy, and improving the stability of film cutting quality.

[0034] In some embodiments, the film-cutting device provided by this utility model further includes a front pushing platform 9, with the front pushing platform 9 and the second protective plate 82 arranged at intervals. The front pushing platform 9 is used to transport the battery 105 to be coated to the conveying channel formed between the first roller 7 and the second roller 71. After the protective film 106 is cut, the front pushing platform 9 pushes the battery 105 to be coated to the conveying channel formed between the first roller 7 and the second roller 71, facilitating subsequent coating operations. For example, the pushing platform may include a motor, a lead screw, a push plate, and a pusher frame. One end of the push plate is connected to the lead screw, and the other end of the push plate can pass through a through groove at the top of the pusher frame. The through groove extends in the direction close to the conveying channel. After the battery 105 to be coated is placed on the pusher frame, the motor mounted on the pusher frame drives the lead screw to move the push plate in the direction close to the conveying channel. At this time, the push plate can push the battery 105 to be coated closer to the conveying channel, which helps to reduce the intensity of manual operation and improve work efficiency.

[0035] In some embodiments, the film-cutting device provided by this utility model further includes a rear discharge platform 10. The rear discharge platform 10 includes a discharge bracket 101 and a rolling shaft 102. The rolling shaft 102 is rotatably mounted on the discharge bracket 101. The front pushing platform 9 pushes the battery 105 to be coated to move towards the rolling shaft 102. The battery 105 can also continue to move on the rolling shaft 102 by its own inertia, realizing continuous conveying of the battery 105. The discharge bracket 101 can provide support for the rolling shaft 102 and the battery 105. The rolling shaft 102, which is rotatably mounted on the discharge bracket 101, facilitates the smooth movement of the battery 105. When the current pushing platform 9 pushes the battery 105 to be coated toward the rolling shaft 102, the battery 105 can move to the rear discharge platform 10 with the assistance of the rolling shaft 102 to complete the output process after coating. This helps to improve the continuity and smoothness of the coating process of the battery 105, reduce the stagnation and waiting time in the intermediate links, reduce the need for manual intervention, and reduce the impact of human factors on the coating quality.

[0036] In some embodiments, the rear discharge platform 10 of the film-cutting device provided by this utility model further includes a conveyor driver (not shown in the figure). The conveyor driver is mounted on the discharge bracket 101 and connected to the rolling shaft 102. The conveyor driver is used to drive the rolling shaft 102 to rotate. The conveyor driver includes a motor or a cylinder. The conveyor driver is connected to the rolling shaft 102 and can control the rotation speed and direction of the rolling shaft 102 to actively guide the movement of the battery 105. When the battery 105 is pushed from the front pusher platform 9 to the rolling shaft 102, the conveyor driver can adjust the rotation speed of the rolling shaft 102 as needed, so that the battery 105 moves at an appropriate speed, avoiding the accumulation of batteries 105 or excessive spacing due to speed mismatch. At the same time, the actively rotating rolling shaft 102 also helps to reduce the sliding and friction of the battery 105 during the movement, protecting the surface of the coated battery 105.

[0037] In some embodiments, the post-discharge platform 10 of the film-cutting device provided by this utility model further includes a support platform 104. The support platform 104 is connected to the discharge bracket 101, and the platform surface of the support platform 104 and the top rolling surface of the rolling shaft 102 are stepped, that is, the height of the platform surface of the support platform 104 from the ground is less than the height of the top rolling surface of the rolling shaft 102 from the ground. When the battery 105 moves from the rolling shaft 102 to the support platform 104, the stepped shape allows the battery 105 to transition smoothly, temporarily storing the coated battery 105 for subsequent collection or further processing. In other words, during the process of moving the battery 105 from dynamic to static placement, the impact and vibration that the battery 105 is prone to are reduced, protecting the coating quality. At the same time, it provides an area for operators to easily pick up and place the battery 105, reducing bending or reaching movements, lowering the labor intensity of operators, and improving the continuity and efficiency of the battery 105 coating process.

[0038] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to examples, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A film cutting device, characterized in that, The film cutting device includes a pressing mechanism for pressing or releasing the protective film, a pulling mechanism for pulling the protective film from the pressing mechanism to a pressing table and pressing it onto the pressing table, and a film cutting mechanism. The film cutting mechanism includes a base with a film cutting groove, a film cutting driver mounted on the base, a drive belt connected to the film cutting driver, and a film cutting assembly connected to the drive belt. The film cutting assembly is located between the pressing mechanism and the pressing table. When the pressing mechanism presses the protective film and the protective film is pressed onto the pressing table by the pulling mechanism, the film cutting driver drives the drive belt to move the film cutting assembly along the length extension direction of the film cutting groove to cut the protective film.

2. The film cutting device according to claim 1, characterized in that, The film cutting driver includes a film cutting drive component and a driving wheel and a driven wheel arranged at intervals. The driving wheel is connected to the drive shaft of the film cutting drive component, and the transmission belt is wound around the driving wheel and the driven wheel respectively. The film cutting assembly includes a slider connected to the transmission belt and a cutter. One end of the cutter is connected to the slider, and the other end of the cutter passes through the film cutting groove and is used to cut the protective film. The film cutting drive unit drives the drive wheel to move the transmission belt and the slider, so that the cutter moves along the length extension direction of the film cutting groove.

3. The film cutting device according to claim 2, characterized in that, The film cutting device further includes a support frame, a first lifting driver and a second lifting driver respectively mounted on the support frame, a first roller shaft rotatably connected to the base, and a second roller shaft rotatably connected to the pressing table. The first lifting driver is connected to the base, and the pressing table is connected to the second lifting driver. The first lifting driver drives the base and the second lifting driver drives the pressing table, causing the first roller shaft and the second roller shaft to move closer or further apart.

4. The film cutting device according to claim 3, characterized in that, The adhesive-pulling mechanism includes a guide rail assembly fixed to the support frame and extending from the pressing table towards the base, two first support rods slidably connected to the guide rail assembly, an adhesive-pulling rod, an adhesive-pulling driver, and a third lifting driver connected to the two first support rods respectively. The first support rods have first guide grooves extending along their length. The two ends of the adhesive-pulling rod pass through the two first guide grooves respectively. The adhesive-pulling driver's extension rod is connected to one end of the adhesive-pulling rod, and the driver drives the extension rod to move the adhesive-pulling rod along the length of the first guide groove. The third lifting driver drives the first support rod to move back and forth between the cutting groove and the pressing table along the guide rail assembly.

5. The film cutting device according to claim 4, characterized in that, The film cutting device further includes a protective cover mounted on the support frame, the protective cover and the support frame forming a protective space, and the protective film is located on one side of the protective cover; the adhesive pressing mechanism includes two second support rods mounted on the support frame, an adhesive pressing rod, and an adhesive pressing driver mounted on the support frame, the second support rods having second guide grooves extending along the length direction of the second support rods; the two ends of the adhesive pressing rod respectively pass through the two second guide grooves, the adhesive pressing rod and the two second support rods are located within the protective space; the adhesive pressing telescopic rod of the adhesive pressing driver is connected to one end of the adhesive pressing rod, wherein the adhesive pressing driver drives the adhesive pressing telescopic rod to move the adhesive pressing rod along the length extension direction of the second guide groove.

6. The film cutting device according to claim 5, characterized in that, The protective cover includes a first protective plate fixedly connected to the support frame, a second protective plate fixedly connected to the first protective plate, and the pressure rod and the two first support rods are all located between the second protective plate and the support frame.

7. The film cutting device according to claim 6, characterized in that, The film cutting device further includes a front pushing platform, which is arranged at intervals with the second protective plate. The front pushing platform is used to transport the battery to be coated to the conveying channel formed between the first roller and the second roller.

8. The film cutting device according to claim 7, characterized in that, The film cutting device also includes a rear discharge platform, which includes a discharge bracket and a rotating roller mounted on the discharge bracket. The front pushing platform pushes the battery to be coated to move closer to the roller.

9. The film cutting device according to claim 8, characterized in that, The rear discharge platform also includes a conveyor driver installed on the discharge bracket. The conveyor driver is connected to the rolling shaft and is used to drive the rolling shaft to rotate.

10. The film-cutting apparatus according to claim 8, characterized in that, The rear discharge platform also includes a support platform, which is connected to the discharge bracket, and the platform surface of the support platform and the top rolling surface of the rolling shaft are stepped.

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