Mylar film wrapping device

Abstract

A Mylar film wrapping device, comprising: a first feeding conveyor assembly (14), a film wrapping assembly (19), a first discharging conveyor assembly (21), an adhesive applying assembly (22) and a first inspection assembly (23), wherein the first feeding conveyor assembly (14) is used for feeding a battery cell (A) and a film into the film wrapping assembly (19); the film wrapping assembly (19) is used for wrapping the film around the surface of the battery cell (A); the first discharging conveyor assembly (21) is used for receiving the battery cell (A) that is discharged from the film wrapping assembly (19), and conveying the received battery cell (A) downstream, and the battery cell (A) passes through the adhesive applying assembly (22) and the first inspection assembly (23) during the process of being conveyed by the first discharging conveyor assembly (21); the adhesive applying assembly (22) is used for applying an adhesive onto the battery cell (A) passing therethrough; and the first inspection assembly (23) is used for performing visual inspection on the top and side faces of the battery cell (A) passing therethrough.

Description

Mylar film packaging equipment

[0001] This disclosure claims priority to a Chinese patent application filed with the Patent Office of China on November 1, 2023, with application number 202322955257.X and application name “A Mylar Film Wrapping Device,” the entire contents of which are incorporated herein by reference. Technical Field

[0002] The present invention relates to the technical field of battery manufacturing equipment, in particular to a Mylar film wrapping equipment. Background Art

[0003] During the battery production process, such as the production process of square aluminum shell batteries, in order to insulate the surface of the battery cell, it is necessary to wrap the surface of the battery cell with Mylar film and heat-stamp the Mylar film on the plastic part of the battery cell top cover.

[0004] After the battery cells are wrapped in Mylar film, they need to be inspected for hot spots on each side of the Mylar film to prevent unqualified products from being passed on to the next process. However, inspecting each side of the Mylar film significantly slows down production and reduces efficiency.

[0005] Summary of the Invention

[0006] Based on this, it is necessary to provide a Mylar film wrapping device that improves the above defects, in order to solve the problem that the relevant technology of separately inspecting each side of the battery cell coated with Mylar film greatly slows down the production cycle and reduces production efficiency.

[0007] A Mylar film wrapping device includes a first feeding and conveying assembly, a film wrapping assembly, a first unloading and conveying assembly, a glue application assembly, and a first detection assembly;

[0008] The first loading conveyor assembly is used to load the battery cells and the membrane sheets onto the film coating assembly, and the film coating assembly is used to coat the membrane sheets on the surface of the battery cells. The first unloading conveyor assembly is used to receive the battery cells unloaded by the film coating assembly and transport the received battery cells downstream. During the process of being transported by the first unloading conveyor assembly, the battery cells can pass through the glue application assembly and the first detection assembly.

[0009] The gluing component is used to apply glue to the battery cells that pass through, and the first detection component is used to simultaneously perform visual inspection on the top surface and side surfaces of the battery cells that pass through.

[0010] In one embodiment, the first unloading conveying assembly is capable of simultaneously carrying and conveying at least two battery cells downstream, and when one battery cell on the first unloading conveying assembly reaches the glue-applying assembly, the other battery cell on the first unloading conveying assembly reaches the first detection assembly.

[0011] In one embodiment, the Mylar film wrapping equipment further includes a transport component, and the transport component is used to grab the battery cells on the film wrapping component and place them on the first unloading conveying component.

[0012] In one embodiment, the Mylar film wrapping device further includes a second unloading conveying assembly and a second detection assembly, wherein the second unloading conveying assembly is arranged downstream of the first unloading conveying assembly and is used to pick up the battery cells on the first unloading conveying assembly and transport the picked-up battery cells downstream;

[0013] The battery cells can pass through the second inspection component while being transported by the second unloading and conveying component. The second inspection component is used to perform visual inspection on the bottom surface of the battery cells passing through.

[0014] In one embodiment, the second unloading conveying assembly includes a second conveying track and a second picking mechanism. The second picking mechanism is arranged on the second conveying track, and is used to pick up the battery cells on the first unloading conveying assembly, and can be moved along the second conveying track in a controlled manner to achieve downstream transfer and release of the battery cells.

[0015] In one embodiment, the first loading conveying assembly includes a first conveying track and a first picking mechanism and an auxiliary material picking mechanism provided on the first conveying track;

[0016] The first picking mechanism is used to pick up battery cells and can be moved along the first conveying track in a controlled manner to load the picked up battery cells into the film assembly; the auxiliary material picking mechanism is used to pick up film sheets and can be moved along the first conveying track in a controlled manner to load the picked up film sheets into the film assembly.

[0017] In one embodiment, the Mylar film wrapping equipment further includes a bottom support silo and a bottom support blanching assembly. The bottom support silo is used to store the bottom support film. The auxiliary material picking mechanism can pass through the bottom support silo and the bottom support blanching assembly during movement along the first conveyor track to transfer the bottom support film in the bottom support silo to the bottom support blanching assembly.

[0018] The first picking mechanism can pass through the bottom support hot stamping assembly while moving along the first conveying track to release the battery cells onto the bottom support hot stamping assembly, and the bottom support hot stamping assembly is used to hot stamp the bottom support film onto the surface of the battery cells.

[0019] In one embodiment, the Mylar film wrapping device further includes a second loading and conveying assembly and a transfer assembly, wherein the second loading and conveying assembly is used to convey the battery cell to the transfer assembly;

[0020] The first picking mechanism can pass through the transfer assembly while moving along the first conveying track to pick up the battery cells on the transfer assembly.

[0021] In one embodiment, the Mylar film wrapping device further includes a second unloading conveying assembly, which is arranged downstream of the first unloading conveying assembly and is used to grab the battery cells on the first unloading conveying assembly and convey the grabbed battery cells downstream;

[0022] The Mylar film wrapping equipment also includes a product conveying line for conveying battery cells, and the product conveying line passes through the upstream end of the second loading conveying component so that the second loading conveying component picks up the battery cells on the product conveying line; the product conveying line also passes through the downstream end of the second unloading conveying component so that the second unloading conveying component conveys the battery cells to the product conveying line.

[0023] In one embodiment, the Mylar film wrapping equipment also includes a defective product conveying line, which passes through the second loading conveying component so that the second loading conveying component releases the unqualified battery cells onto the defective product conveying line; the defective product conveying line passes through the second unloading conveying component so that the second unloading conveying component releases the unqualified battery cells onto the defective product conveying line.

[0024] When the Mylar film wrapping equipment is actually used, first, the first loading and conveying assembly loads the battery cells and the film sheets onto the wrapping assembly. Then, the wrapping assembly wraps the film sheets on the surface of the battery cells and performs heat treatment on the battery cells so that the film sheets are fixed on the surface of the battery cells. The battery cells after wrapping are transferred to the first unloading and conveying assembly. Then, the first unloading and conveying assembly transports the wrapped battery cells downstream so that the wrapped battery cells pass through the gluing assembly and the first inspection assembly in sequence. When the wrapped battery cells pass through the gluing assembly, the gluing assembly glues the wrapped battery cells, that is, uses tape to stick the ends of the film sheets to the battery cells. When the wrapped battery cells pass through the first inspection assembly, the first inspection assembly simultaneously performs visual inspection on the top and side surfaces of the wrapped battery cells.

[0025] In this way, compared with the related art of inspecting the battery cells on the coating assembly, in the present disclosure, during the process of the first unloading and conveying assembly unloading the battery cells after coating, the first detection assembly is used to simultaneously inspect the top and side surfaces of the battery cells. This not only does not occupy the coating operation cycle, that is, avoids slowing down the production cycle, but also can improve the production cycle due to the simultaneous inspection of the top and side surfaces of the battery cell A, which is beneficial to improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] FIG1 is a schematic structural diagram of a Mylar film wrapping device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0027] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0030] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0031] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0033] 1 , an embodiment of the present invention provides a Mylar film wrapping device, including a first loading and conveying assembly 14 , a film wrapping assembly 19 , a first unloading and conveying assembly 21 , a glue application assembly 22 , and a first detection assembly 23 .

[0034] The first loading conveyor assembly 14 is used to load the battery cells A and membrane sheets onto the film coating assembly 19. The film coating assembly 19 is used to coat the membrane sheets on the surface of the battery cells A and heat-stamp the membrane sheets onto the plastic cover of the battery cells A. The first unloading conveyor assembly 21 is used to receive the battery cells A unloaded from the film coating assembly 19 and transport them downstream. During the process of being transported by the first unloading conveyor assembly 21, the battery cells A pass through the gluing assembly 22 and the first inspection assembly 23. The gluing assembly 22 is used to apply glue to the battery cells A passing through, and the first inspection assembly 23 is used to simultaneously perform visual inspections on the top and side surfaces of the battery cells A passing through.

[0035] When the Mylar film wrapping equipment is actually used, first, the first loading conveyor assembly 14 loads the battery cell A and the film sheet onto the wrapping assembly 19. Then, the wrapping assembly 19 wraps the film sheet on the surface of the battery cell A and heats the battery cell A to fix the film sheet on the battery cell A. The wrapped battery cell A is transferred to the first unloading conveyor assembly 21. Then, the first unloading conveyor assembly 21 transports the wrapped battery cell A downstream, so that the wrapped battery cell A passes through the gluing assembly 22 and the first inspection assembly 23 in sequence. When the wrapped battery cell A passes through the gluing assembly 22, the gluing assembly 22 glues the wrapped battery cell A, that is, uses tape to stick the end of the film sheet to the battery cell A. When the wrapped battery cell A passes through the first inspection assembly 23, the first inspection assembly 23 simultaneously performs visual inspection on the top and side surfaces of the wrapped battery cell A.

[0036] In this way, compared with the related art of inspecting the battery cell A on the coating component 19, in the present disclosure, during the process of the first unloading and conveying component 21 unloading the battery cell A after the coating, the first detection component 23 is used to simultaneously inspect the top surface and the side surface of the battery cell A. This not only does not occupy the coating operation rhythm, that is, avoids slowing down the production rhythm, but also can improve the production rhythm due to the simultaneous inspection of the top surface and the side surface of the battery cell A, which is conducive to improving production efficiency.

[0037] Specifically in the embodiment, the first unloading conveyor assembly 21 is capable of simultaneously carrying and conveying at least two battery cells A downstream. When one battery cell A on the first unloading conveyor assembly 21 arrives at the gluing assembly 22 for gluing, another battery cell A on the first unloading conveyor assembly 21 arrives at the first inspection assembly 23 for inspection. In this way, when one battery cell A on the first unloading conveyor assembly 21 arrives at the gluing assembly 22, another battery cell A on the first unloading conveyor assembly 21 arrives at the first inspection assembly 23. At this time, the first unloading conveyor assembly 21 pauses conveying the battery cells A downstream, the gluing assembly 22 applies glue to the battery cells A passing through, and the first inspection assembly 23 simultaneously inspects the battery cells A passing through. After gluing and inspection are completed, the first unloading conveyor assembly 21 continues to convey the battery cells A downstream, and this cycle ensures that each battery cell A on the first inspection assembly 23 is glued and inspected in sequence.

[0038] It should be noted that when the first unloading conveyor assembly 21 pauses, the gluing assembly 22 applies glue to one battery cell A on the first unloading conveyor assembly 21, while the first inspection assembly 23 inspects another battery cell A on the first unloading conveyor assembly 21. In other words, by using the time the gluing assembly 22 is applying glue to the battery cell A and the time the first inspection assembly 23 is inspecting the other battery cell A, there is no need to increase the time or number of pauses for the first unloading conveyor assembly 21, thereby avoiding slowing down the production cycle and improving production efficiency.

[0039] It should also be noted that, in order to improve production efficiency, the first loading and conveying assembly 14 simultaneously loads a group of battery cells A to the coating assembly 19, each group including two battery cells A. The coating assembly 19 simultaneously coats the two battery cells A in the same group and unloads them to the first unloading conveying assembly 21.

[0040] It is understandable that in the related art, the battery cells A are inspected on the film assembly 19, so two first inspection assemblies 23 are required to inspect the two battery cells A in each group respectively. In addition, to meet the production schedule, two gluing assemblies 22 are required to glue the two battery cells A in each group respectively. However, in the present disclosure, only one gluing assembly 22 and first inspection assembly 23 are required. The gluing assembly 22 and the first inspection assembly 23 respectively perform glueing and inspection on the two battery cells A in the same group simultaneously, thereby greatly simplifying the equipment structure.

[0041] Specifically, in this embodiment, the Mylar film wrapping equipment further includes a handling assembly 20. This handling assembly 20 is used to grasp the battery cell A from the wrapping assembly 19 and transfer it to the first unloading conveyor assembly 21. Thus, after the wrapping assembly 19 has completed wrapping the battery cell A, the handling assembly 20 transfers the unwrapped battery cell A from the wrapping assembly 19 to the first unloading conveyor assembly 21. The first unloading conveyor assembly 21 receives the battery cell A and conveys it downstream. It should be noted that the handling assembly 20 can be a mechanism with a handling function, such as a handling robot, and this is not limited here.

[0042] In an embodiment of the present disclosure, the Mylar film wrapping device further includes a second unloading conveying assembly 24 and a second detection assembly 25. The second unloading conveying assembly 24 is arranged downstream of the first unloading conveying assembly 21. The second unloading conveying assembly 24 is used to pick up the battery cell A on the first unloading conveying assembly 21 and convey the picked-up battery cell A downstream. The battery cell A passes through the second detection assembly 25 during the process of being conveyed by the second unloading conveying assembly 24. The second detection assembly 25 is used to perform a visual inspection of the bottom surface of the battery cell A passing through. In this way, the top surface and side surface of the battery cell A are inspected by the above-mentioned first detection assembly 23, and then the bottom surface of the battery cell A is inspected by the second detection assembly 25.

[0043] It should be noted that the film coating assembly 19 coats the top, bottom, and two opposing side surfaces of the battery cell A. After the film coating is completed, hot spots may appear on the top, bottom, and two opposing side surfaces of the battery cell A. Therefore, it is necessary to inspect these hot spots on the top, bottom, and two opposing side surfaces of the battery cell A.

[0044] When battery cell A is carried on the first unloading conveyor assembly 21, it contacts the bottom surface of battery cell A, supporting it and allowing it to be transported downstream. Specifically, when battery cell A is carried on the first unloading conveyor assembly 21, its bottom surface is obscured, while its top and side surfaces are exposed. This ensures that the first inspection assembly 23 can simultaneously inspect the top surface and two opposing side surfaces of battery cell A on the first unloading conveyor assembly 21 for hot spots. This means that the use of a single first inspection assembly 23 to simultaneously visually inspect the top and two opposing side surfaces of battery cell A reduces the number of inspection components, simplifies the equipment structure, reduces the size of the equipment, and lowers equipment costs.

[0045] The second unloading conveying component 24 clamps the battery cell A on the first unloading conveying component 21 and conveys the battery cell A downstream. At this time, the side and top surfaces of the battery cell A are blocked, and the bottom surface of the battery cell A is exposed, thereby ensuring that the second detection component 25 can detect the bottom surface of the battery cell A on the second unloading conveying component 24.

[0046] Optionally, the first detection component 23 may be an industrial camera, and the second detection component 25 may also be an industrial camera.

[0047] Optionally, the second unloading conveyor assembly 24 includes a second conveyor track and a second pickup mechanism. The second pickup mechanism is disposed on the second conveyor track and is used to pick up the battery cell A from the first unloading conveyor assembly 21. The second pickup mechanism can be controlled to move along the second conveyor track, thereby driving the picked-up battery cell A for downstream transport. As such, when the first unloading conveyor assembly 21 delivers the battery cell A to the downstream end of the first unloading conveyor assembly 21, the second pickup mechanism of the second unloading conveyor assembly 24 moves along the second conveyor track to the upstream end of the second conveyor track. At this point, the second pickup mechanism picks up the battery cell A at the downstream end of the first unloading conveyor assembly 21. The second pickup mechanism of the second unloading conveyor assembly 24 then moves along the second conveyor track to the downstream end of the second conveyor track. At this point, the second pickup mechanism releases the picked-up battery cell A, thereby completing the unloading of one battery cell A. It should be noted that the second pickup mechanism can employ a gripping mechanism with a clamping function, as long as it can grasp the battery cell A, and this is not limited here.

[0048] Furthermore, the second unloading conveyor assembly 24 includes a second drive mechanism mounted on the second conveyor track. This second drive mechanism is connected to the second pickup mechanism to drive the second pickup mechanism along the second conveyor track. It should be noted that the second drive mechanism can be a belt drive mechanism, a chain drive mechanism, a rack and pinion drive mechanism, a pneumatic cylinder drive mechanism, an electric cylinder drive mechanism, etc., and is not limited here.

[0049] In the embodiment of the present disclosure, the first loading conveyor assembly 14 includes a first conveyor track and a first picking mechanism and an auxiliary material picking mechanism provided on the first conveyor track. The first picking mechanism is used to pick up the battery cell A and can be controlled to move along the first conveyor track to load the picked up battery cell A onto the film assembly 19. The auxiliary material picking mechanism is used to pick up the film sheet and can be controlled to move along the first conveyor track to load the picked up film sheet onto the film assembly 19. In this way, when it is necessary to load the film assembly 19, the auxiliary material picking mechanism picks up the film sheet and moves along the first conveyor track toward the film assembly 19 until it reaches the film assembly 19. At this time, the auxiliary material picking mechanism releases the film sheet onto the film assembly 19; the first picking mechanism picks up the battery cell A and moves along the first conveyor track toward the film assembly 19 until it reaches the film assembly 19. At this time, the first picking mechanism releases the battery cell A onto the film assembly 19.

[0050] Furthermore, the first loading conveyor assembly 14 also includes a first drive mechanism mounted on the first conveyor track. This first drive mechanism is connected to the first pickup mechanism and the auxiliary material pickup mechanism to drive them to move along the first conveyor track. It should be noted that the first drive mechanism can be a belt drive mechanism, a chain drive mechanism, a rack and pinion drive mechanism, a pneumatic cylinder drive mechanism, an electric cylinder drive mechanism, etc., and is not limited here.

[0051] Furthermore, the Mylar film wrapping equipment also includes a film silo 15 for storing film sheets. During the movement of the auxiliary material picking mechanism of the first loading conveying component 14 along the first conveying track, it can also pass through the film silo 15, so that the auxiliary material picking mechanism can pick up the film in the film silo 15. In this way, when the film needs to be loaded onto the film wrapping component 19, first, the auxiliary material picking mechanism of the first loading conveying component 14 moves along the first conveying track to the film silo 15 and picks up the film in the film silo 15. Then, the auxiliary material picking mechanism of the first loading conveying component 14 moves along the first conveying track to the film wrapping component 19 and releases the picked up film onto the film wrapping component 19. It should be noted that the auxiliary material picking mechanism can be a vacuum suction cup with an adsorption function, as long as it can realize the taking and placing of the material tray, and is not limited here.

[0052] Specifically, in this embodiment, the Mylar film wrapping equipment further includes a base hopper 16 and a base blanching assembly 17. The base hopper 16 is used to store the base film. The auxiliary material pickup mechanism of the first loading conveyor assembly 14 can pass through the base hopper 16 and the base blanching assembly 17 during its movement along the first conveyor track to transfer the base film from the base hopper 16 to the base blanching assembly 17. The first pickup mechanism of the first loading conveyor assembly 14 can also pass through the base blanching assembly 17 during its movement along the first conveyor track to release the battery cell A onto the base blanching assembly 17. The base blanching assembly 17 is used to blanch the base film onto the surface of the battery cell A.

[0053] Thus, when a battery cell A needs to be loaded onto the film coating assembly 19, the auxiliary material pickup mechanism of the first loading conveyor assembly 14 first moves along the first conveyor track to the base tray hopper 16 and picks up the base tray film within the base tray hopper 16. The auxiliary material pickup mechanism of the first loading conveyor assembly 14 then moves along the first conveyor track to the base tray blanching assembly 17 and releases the base tray film onto the base tray blanching assembly 17. The first pickup mechanism of the first loading conveyor assembly 14 then picks up the battery cell A and moves along the first conveyor track to the base tray blanching assembly 17, releasing the base tray film onto the base tray blanching assembly 17. At this point, the base tray blanching assembly 17 wraps and blanches the base tray film onto the surface of the battery cell A. The first pickup mechanism of the first loading conveyor assembly 14 then picks up the battery cell A from the base tray blanching assembly 17 and moves along the first conveyor track to the film coating assembly 19, releasing the picked-up battery cell A onto the film coating assembly 19. That is, before loading the battery cell A onto the film wrapping assembly 19 , the first picking mechanism first releases the battery cell A onto the base hot stamping assembly 17 , so that the base hot stamping assembly 17 wraps and hot stamps the battery cell A with the base film.

[0054] In an embodiment of the present disclosure, the Mylar film wrapping equipment further includes a second loading conveyor assembly 12 and a transfer assembly 13. The second loading conveyor assembly 12 is used to convey the battery cell A to the transfer assembly 13. The first picking mechanism of the first loading conveyor assembly 14 can pass through the transfer assembly 13 during its movement along the first conveying track to pick up the battery cell A on the transfer assembly 13. In this way, the incoming battery cell A is first loaded onto the second loading conveyor assembly 12, and the second loading conveyor assembly 12 conveys the battery cell A thereon to the transfer assembly 13. When the first picking mechanism of the first loading conveyor assembly 14 moves along the first conveying track to the transfer assembly 13, it picks up the battery cell A on the transfer assembly 13, and conveys the battery cell A to the bottom support hot stamping assembly 17 for bottom support film hot stamping, and then conveys the battery cell A to the wrapping assembly 19.

[0055] Furthermore, the Mylar film wrapping equipment also includes a product conveyor line 11 for conveying battery cells A. This product conveyor line 11 passes through the upstream end of a second loading conveyor assembly 12, allowing the second loading conveyor assembly 12 to pick up battery cells A to be wrapped on the product conveyor line 11. The product conveyor line 11 also passes through the downstream end of a second unloading conveyor assembly 24, allowing the second unloading conveyor assembly 24 to convey the wrapped battery cells A to the product conveyor line 11.

[0056] In this way, when the battery cell A to be coated being conveyed on the product conveyor line 11 passes the upstream end of the second loading conveyor assembly 12, the second loading conveyor assembly 12 picks up the battery cell A to be coated and then conveys the picked-up battery cell A to the transfer assembly 13. When the second picking mechanism of the second unloading conveyor assembly 24 conveys the coated battery cell A to the unloading end of the second conveyor track, the second picking mechanism releases the coated battery cell A onto the product conveyor line 11, allowing the coated battery cell A to continue to be conveyed downstream on the product conveyor line 11.

[0057] It can be understood that the product conveyor line 11 is used to simultaneously realize the loading of the battery cells A to be coated and the unloading of the coated battery cells A, that is, the loading and unloading are realized on the same side, which is beneficial to improve the space utilization rate of the equipment and reduce the volume of the equipment.

[0058] Specifically in the embodiment, the second loading conveyor assembly 12 includes a third conveyor track and a third picking mechanism arranged on the third conveyor track, and the third picking mechanism can be controlled to move along the third conveyor track. The product conveyor line 11 passes through the upstream end of the third conveyor track, and the transfer assembly 13 is arranged corresponding to the downstream end of the third conveyor track. When the third picking mechanism of the second loading conveyor assembly 12 moves along the third conveyor track to the upstream end of the third conveyor track, the third picking mechanism can pick up the battery cell A to be coated on the product conveyor line 11. When the third picking mechanism of the second loading conveyor assembly 12 moves along the third conveyor track to the downstream end of the third conveyor track, the third picking mechanism can release the picked battery cell A to the transfer assembly 13, thereby realizing the transfer of the battery cell A to be coated on the product conveyor line 11 to the transfer assembly 13. It should be noted that the third picking mechanism may adopt a clamping claw mechanism with a clamping function, as long as it can clamp the battery cell A on the product conveyor line 11 and release the battery cell A to the transfer component 13, and is not limited here.

[0059] Furthermore, the second loading conveyor assembly 12 includes a third drive mechanism mounted on the third conveyor track. This third drive mechanism is connected to the third pickup mechanism to drive the third pickup mechanism along the third conveyor track. It should be noted that the third drive mechanism can be a belt drive mechanism, a chain drive mechanism, a rack and pinion drive mechanism, a pneumatic cylinder drive mechanism, an electric cylinder drive mechanism, etc., and is not limited here.

[0060] Optionally, the third conveying track and the second conveying track are fixedly mounted on the same support frame, thereby simplifying the structure, improving the compactness of the equipment, and further improving space utilization.

[0061] It should be noted that the battery cells A conveyed to the upstream end of the third conveyor track on the product conveyor line 11 may be unqualified products. Therefore, a detection component can be provided to detect the battery cells A to be coated on the product conveyor line 11 to determine whether the battery cells A to be coated on the product conveyor line 11 are unqualified battery cells A. If the first detection component 23 and / or the second detection component 25 detect that the hot spot on the coated battery cell A is unqualified, the battery cell A is also unqualified.

[0062] To prevent unqualified battery cells A from entering the unloading process, in some embodiments, the Mylar film wrapping equipment further includes a defective product conveyor line 18. The defective product conveyor line 18 passes through the second loading conveyor assembly 12, so that the second loading conveyor assembly 12 releases the unqualified battery cells A onto the defective product conveyor line 18. The defective product conveyor line 18 passes through the second unloading conveyor assembly 24, so that the second unloading conveyor assembly 24 releases the unqualified battery cells A onto the defective product conveyor line 18.

[0063] In this way, when the battery cell A on the product conveyor line 11 is an unqualified battery cell A, the third picking mechanism of the second loading and conveying assembly 12 picks up the unqualified battery cell A and moves along the third conveying track to the defective product conveyor line 18 to release the unqualified battery cell A to the defective product conveyor line 18 to prevent unqualified products from flowing into the downstream process.

[0064] When the first detection component 23 detects that the battery cell A on the first unloading conveyor component 21 is a defective battery cell A, and / or the second detection component 25 detects that the battery cell A on the second pickup mechanism of the second unloading conveyor component 24 is a defective battery cell A, the second pickup mechanism of the second unloading conveyor component 24 releases the defective battery cell A to the defective product conveyor line 18 to prevent the defective battery cell A from flowing into downstream processes. Optionally, the defective product conveyor line 18 can be a belt conveyor.

[0065] The operation process of the Mylar film wrapping device disclosed in the present invention is described below with reference to FIG1 :

[0066] First, the battery cell A to be coated arrives at the upstream end of the third conveying track of the second loading conveyor assembly 12 under the conveying action of the product conveyor line 11, so as to be picked up by the third picking mechanism. The third picking mechanism of the second loading conveyor assembly 12 carries the battery cell A to the downstream end of the third conveying track and releases the battery cell A to the transfer assembly 13. Then, the auxiliary material picking mechanism of the first loading conveyor assembly 14 picks up the bottom support film on the bottom support hopper 16 and transfers the bottom support film to the bottom support blanching assembly 17. The first picking mechanism of the first loading conveyor assembly 14 picks up the battery cell A on the transfer assembly 13 and transfers the battery cell A to the bottom support blanching assembly 17. The bottom support blanching assembly 17 scalds the bottom support film to the surface of the battery cell A. Then, the first picking mechanism of the first loading conveyor assembly 14 transfers the battery cell A coated with the bottom support film to the coating assembly 19. The auxiliary material picking mechanism of the first feeding and conveying assembly 14 picks up the membrane in the membrane silo 15 and feeds it onto the membrane coating assembly 19 .

[0067] Next, the film coating assembly 19 coats the film sheet on the top, bottom, and two opposing sides of the battery cell A, and performs heat treatment on these surfaces. Next, the transport assembly 20 transfers the coated battery cells A from the film coating assembly 19 to the first unloading conveyor assembly 21. This first unloading conveyor assembly 21 transports the coated battery cells A downstream, passing them sequentially through the gluing assembly 22 and the first inspection assembly 23. The gluing assembly 22 applies glue to the battery cells A as they pass through, while the first inspection assembly 23 simultaneously visually inspects the hot spots on the top and two opposing sides of the battery cells A as they pass through. Next, the second pickup mechanism of the second unloading conveyor assembly 24 picks up the battery cell A at the downstream end of the first unloading conveyor assembly 21 and transfers the picked-up battery cell A to the product conveyor line 11. (During this process, the second pickup mechanism of the second unloading conveyor assembly 24 carries the battery cell A through the second inspection assembly 25, which performs a visual inspection of the hot spots on the bottom surface of the passing battery cell A.) Finally, the product conveyor line 11 continues to convey the battery cell A released by the second pickup mechanism downstream.

[0068] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A Mylar film packaging device, characterized in that: It comprises a first loading and conveying assembly (14), a film coating assembly (19), a first unloading and conveying assembly (21), a glue sticking assembly (22) and a first detection assembly (23); The first loading conveying component (14) is used to load the battery cell (A) and the film sheet to the film coating component (19); the film coating component (19) is used to coat the film sheet on the surface of the battery cell (A); the first unloading conveying component (21) is used to receive the battery cell (A) unloaded by the film coating component (19) and transport the received battery cell (A) downstream; the battery cell (A) can pass through the glue sticking component (22) and the first detection component (23) during the process of being transported by the first unloading conveying component (21); The glue sticking component (22) is used to apply glue to the battery cell (A) passing by, and the first detection component (23) is used to simultaneously perform visual detection on the top surface and side surface of the battery cell (A) passing by.

2. The Mylar film wrapping device according to claim 1, characterized in that: The first unloading conveying component (21) is capable of simultaneously carrying and conveying at least two battery cells (A) downstream; when one battery cell (A) on the first unloading conveying component (21) reaches the glue application component (22), another battery cell (A) on the first unloading conveying component (21) reaches the first detection component (23).

3. The Mylar film wrapping device according to claim 1, characterized in that: The Mylar film wrapping device further comprises a second unloading conveying component (24) and a second detection component (25), wherein the second unloading conveying component (24) is arranged downstream of the first unloading conveying component (21) and is used to pick up the battery cell (A) on the first unloading conveying component (21) and transport the picked-up battery cell (A) to the downstream; The battery cell (A) can pass through the second detection component (25) during the process of being conveyed by the second unloading conveying component (24), and the second detection component (25) is used to perform visual inspection on the bottom surface of the battery cell (A) passing through.

4. The Mylar film wrapping device according to claim 3, characterized in that: The second unloading conveying assembly (24) comprises a second conveying track and a second picking mechanism, wherein the second picking mechanism is arranged on the second conveying track and is used to pick up the battery cell (A) on the first unloading conveying assembly (21), and can be moved along the second conveying track in a controlled manner to achieve downstream transfer and release of the battery cell (A).

5. The Mylar film wrapping device according to claim 1, characterized in that: The Mylar film wrapping device also includes a transport component (20), and the transport component (20) is used to transfer the battery cell (A) on the film wrapping component (19) to the first unloading conveying component (21).

6. The Mylar film coating device according to any one of claims 1 to 5, characterized in that: The first loading conveying assembly (14) comprises a first conveying track and a first picking mechanism and an auxiliary material picking mechanism arranged on the first conveying track; The first picking mechanism is used to pick up the battery cell (A) and can be moved along the first conveying track in a controlled manner to load the picked up battery cell (A) into the film encapsulation assembly (19); the auxiliary material picking mechanism is used to pick up the film sheet and can be moved along the first conveying track in a controlled manner to load the picked up film sheet into the film encapsulation assembly (19).

7. The Mylar film coating device according to claim 6, characterized in that: The Mylar film wrapping device further comprises a bottom support material bin (16) and a bottom support hot-stamping assembly (17), wherein the bottom support material bin (16) is used to store the bottom support film, and the auxiliary material picking mechanism can pass through the bottom support material bin (16) and the bottom support hot-stamping assembly (17) when moving along the first conveying track, so as to transfer the bottom support film in the bottom support material bin (16) to the bottom support hot-stamping assembly (17); The first picking mechanism can pass through the base hot stamping component (17) when moving along the first conveying track to release the battery cell (A) onto the base hot stamping component (17), and the base hot stamping component (17) is used to hot stamp the base film onto the surface of the battery cell (A).

8. The Mylar film coating device according to claim 6, characterized in that: The Mylar film wrapping device further comprises a second loading and conveying assembly (12) and a transfer assembly (13), wherein the second loading and conveying assembly (12) is used to convey the battery cell (A) to the transfer assembly (13); The first picking mechanism can pass through the transfer component (13) when moving along the first conveying track to pick up the battery cell (A) on the transfer component (13).

9. The Mylar film wrapping device according to claim 8, characterized in that: The Mylar film wrapping device further comprises a second unloading conveying component (24), which is arranged downstream of the first unloading conveying component (21) and is used to grab the battery cell (A) on the first unloading conveying component (21) and convey the grabbed battery cell (A) to the downstream; The Mylar film wrapping device also includes a product conveying line (11) for conveying battery cells (A), wherein the product conveying line (11) passes through the upstream end of the second loading conveying component (12) so that the second loading conveying component (12) picks up the battery cells (A) on the product conveying line (11); the product conveying line (11) also passes through the downstream end of the second unloading conveying component (24) so ​​that the second unloading conveying component (24) conveys the battery cells (A) to the product conveying line (11).

10. The Mylar film wrapping device according to claim 8, characterized in that: The Mylar film wrapping device also includes a defective product conveying line (18), wherein the defective product conveying line (18) passes through the second loading conveying component (12), so that the second loading conveying component (12) releases the defective battery cells (A) onto the defective product conveying line (18); the defective product conveying line (18) passes through the second unloading conveying component (24), so that the second unloading conveying component (24) releases the defective battery cells (A) onto the defective product conveying line (18).

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