Cell coating production line and battery production system

Abstract

The present application relates to the technical field of battery automation production equipment, and in particular to a cell coating production loop line and a battery production system. The cell coating production loop line includes a magnetic levitation transport line, a Mylar film side plate loading unit, a cell loading unit, a coating unit, and a unloading unit. The magnetic levitation transport line includes a transmission line body and a mover. The transmission line body includes a first line body, a second line body, and a lifting part. The second line body is higher than the first line body. The two ends of the second line body are respectively connected to the two ends of the first line body by the lifting part, so that the transmission line body is surrounded to form a closed loop, and a channel that can enter the interior of the transmission line body is formed below the second line body of the transmission line body. The cell coating production loop line and battery production system provided by the present application improve the transmission efficiency between the various stations of the battery assembly line, improve the space utilization rate of the cell coating production loop line, facilitate loading and unloading of each station, and shorten the loading and unloading path.

Description

Technical Field

[0001] The present application relates to the technical field of battery automated production equipment, and in particular to a battery cell coating production loop line and a battery production system. Background Art

[0002] With the rapid development of electronic equipment, the market demand for square shell blade batteries has increased dramatically. Most of the high-speed production lines in the industry achieve high production capacity by stacking more workstations. At the same time, the transfer of products between workstations has become a bottleneck of the equipment. At the same time, the equipment occupies a large area, and there are many workstations and they are densely distributed, making maintenance and inspection inconvenient. How to solve the above technical problems to improve the production capacity of square shell blade battery production lines has become an urgent problem to be solved in this field.

[0003] In addition, the current Mylar film production line for square shell blade batteries has many assembly steps, which makes the production line process distance long, making the reflow of assembly jigs difficult. Today's jig reflow usually includes two methods. One method is the double-layer conveyor line method, that is, a jig reflow line with the same length as the production conveyor line is arranged on the upper / lower layer of the production conveyor line, and the jig is circulated at the ends of the production conveyor line and the jig reflow line through lifting equipment or manipulators. However, in this method, the jig reflow path is long and the probability of failure during the reflow process is high; the other method is the loop line transmission method, that is, the production conveyor line and the jig reflow line are enclosed to form a closed-loop conveyor line. In this way, the jig reflow line transmission distance can be greatly shortened, but the closed-loop conveyor line occupies a large space, and each workstation of the production conveyor line needs to bypass the closed-loop conveyor line for loading and unloading, which affects production efficiency. Summary of the invention

[0004] The purpose of the present application is to provide a battery cell film production loop line and a battery production system, so as to solve the technical problems existing in the prior art to a certain extent, that the production capacity of the Mylar film production line of the square shell blade battery pack needs to be improved urgently, the jig is transported by a double-layer conveyor line, the jig reflow path is long, the probability of failure during the reflow process is high, and the jig is transported by a loop line, the closed-loop conveyor line occupies a large space, and the loading and unloading of each workstation of the production conveyor line needs to bypass the closed-loop conveyor line, which affects the production efficiency.

[0005] According to a first aspect of the present application, a battery core coating production loop line is provided, comprising a magnetic suspension transport line, a Mylar film side plate loading unit, a battery core loading unit, a coating unit and a unloading unit, wherein the magnetic suspension transport line comprises a conveyor line body and a mover, wherein the mover can move along the conveyor line body under the magnetic induction of the conveyor line body;

[0006] The transmission line body comprises a first line body, a second line body and a lifting part, the transmission plane where the second line body is located is higher than the transmission plane where the first line body is located, and the two ends of the second line body are respectively connected to the two ends of the first line body by the lifting part, so that the transmission line body is surrounded to form a closed loop, and a channel capable of entering the interior of the transmission line body is formed below the location of the second line body of the transmission line body;

[0007] The Mylar film side plate loading unit, the battery cell loading unit, the coating unit and the unloading unit are arranged in sequence along the conveying direction of the conveying line.

[0008] Preferably, the battery cell loading unit and the battery cell unloading unit are respectively arranged at two ends of the conveying line body in the first direction.

[0009] Preferably, the first line body comprises a first section, a second section, a third section and a fourth section connected in sequence, and the second line body connects the upstream end of the first section and the downstream end of the fourth section;

[0010] And / or, the first segment, the third segment and the second line body all extend along the first direction, the second segment and the fourth segment both extend along the second direction, the second direction intersects with the first direction, the first line body also includes a turntable portion, and the first segment and the second segment, the second segment and the third segment, the third segment and the fourth segment, and the fourth segment and the second line body are all connected via the turntable portion.

[0011] Preferably, the Mylar film side plate feeding unit comprises:

[0012] Mylar film material warehouse, used to store Mylar film;

[0013] Side plate material warehouse, used for storing side plates;

[0014] A first hot-melt portion, used for hot-melting and fixing the Mylar film and the side plate;

[0015] The circulation assembly comprises a circulation moving line and a circulation grabbing part, wherein the Mylar film material store, the side plate material store and the first hot-melt part are sequentially arranged along the flow direction of the circulation moving line, and the circulation grabbing part can move on the circulation moving line to sequentially grab the Mylar film of the Mylar film material store and the side plate of the side plate material store to the first hot-melt part, and then grab the combination of the Mylar film and the side plate fixed by hot-melt to the mover;

[0016] and / or,

[0017] The Mylar film material storehouse, the side plate material storehouse, the first hot melt section and the circulation assembly are all arranged in a space surrounded by the conveyor line body, and the channel is connected to the Mylar film material storehouse and the side plate material storehouse.

[0018] Preferably, the conveyor line body is provided with a battery cell loading station, and the battery cell loading unit includes a battery cell gripper;

[0019] When the mover carrying the Mylar film and the side plate flows into the battery cell loading station, the battery cell gripper can grab the battery cell to be processed to a predetermined position of the mover;

[0020] and / or,

[0021] When the battery cell to be processed is placed on the mover, the two poles of the battery cell to be processed are relatively arranged at two ends of the battery cell to be processed in a predetermined direction, and the predetermined direction is perpendicular to the transmission direction of the transmission line body;

[0022] The battery cell loading unit also includes a first polarity top cover bending device and a second polarity cover plate passing device. The first polarity top cover bending device is used to bend the first polarity pole ear of the battery cell to be processed so that the first polarity top cover of the battery cell to be processed is covered on the end of the battery cell to be processed. The second polarity cover plate passing device can pass the second polarity cover on the second polarity pole ear of the battery cell to be processed. The first polarity top cover bending device and the second polarity cover plate passing device are relatively arranged in a conveying direction perpendicular to the conveying line body.

[0023] Preferably, the coating unit comprises:

[0024] A second hot-melt portion is arranged downstream of the battery cell feeding unit, and when the mover moves to the processing area of ​​the second hot-melt portion, the second hot-melt portion can act on the bottom surface of the battery cell to be processed to hot-melt and fix the Mylar film to the bottom surface of the battery cell to be processed;

[0025] A film wrapping device capable of sequentially bending the portion of the Mylar film that exceeds the battery cell to be processed along the outer contour of the battery cell to be processed, so that the Mylar film wraps the battery cell to be processed for at least one week;

[0026] A third hot-melt portion is arranged downstream of the coating device, and when the mover moves to the processing area of ​​the third hot-melt portion, the third hot-melt portion can act on the top surface of the battery cell to be processed to hot-melt and fix the Mylar film to the top surface of the battery cell to be processed;

[0027] The fourth hot-melt portion is arranged downstream of the third hot-melt portion. When the mover moves to the processing area of ​​the fourth hot-melt portion, the fourth hot-melt portion can act on the side of the seam where the seam of the Mylar film of the battery cell to be processed is located, so as to hot-melt and fix the two ends of the Mylar film on the side of the seam respectively;

[0028] A gluing mechanism, disposed downstream of the fourth hot-melt section, capable of attaching insulating glue to the outer side of the seam of the Mylar film;

[0029] A first visual inspection unit, disposed downstream of the adhesive sticking mechanism, for inspecting the sticking quality of the insulating adhesive;

[0030] The second visual inspection unit is arranged downstream of the fourth hot-melt unit and is used to inspect the quality of the hot-melt fixing points.

[0031] Preferably, there are multiple groups of the gluing mechanisms, which are arranged in sequence along the conveying direction of the conveying line body, and at least one of the multiple groups of the gluing mechanisms is a standby gluing mechanism.

[0032] Preferably, the unloading unit comprises:

[0033] A first dust removal device is arranged downstream of the coating unit to remove dust from the battery cells to be processed after the coating process is completed;

[0034] A scanning and error-correcting device, comprising at least one scanning unit, for identifying the code of the to-be-processed cell and the corresponding code of the mover passing through the scanning and error-correcting device;

[0035] A material unloading and grabbing device, wherein the conveyor line body is provided with a material unloading station, and the material unloading and grabbing device is arranged at the material unloading station to move the qualified battery cells to be processed out of the conveyor line body;

[0036] The defective product outflow station is arranged downstream of the unloading station, and the defective product outflow station includes a defective product storage part and a defective product gripper, and the defective product gripper can transfer the unqualified battery cells to be processed from the mover to the defective product storage part.

[0037] Preferably, it also includes:

[0038] A second dust removal device is arranged at the upstream side of the Mylar membrane side plate feeding unit to remove dust from the refluxed mover;

[0039] The mover maintenance section is arranged at the downstream side of the unloading unit, and the mover maintenance section includes a mover gripper and a maintenance station. The maintenance station is arranged at one side of the conveyor line body, and the mover gripper can grab the mover and move it between the conveyor line body and the maintenance station.

[0040] According to the second aspect of the present application, a battery production system is provided, comprising a cell film production loop line as described in any of the above technical solutions, and thus having all the beneficial technical effects of the cell film production loop line, which will not be described in detail herein.

[0041] Compared with the prior art, the beneficial effects of this application are:

[0042] The battery cell coating production loop provided by the present application, on the one hand, replaces the traditional conveyor belt transmission with the transmission method of the magnetic levitation transport loop line, and the integrated design of the assembly line mover fixture transportation and processing utilizes the high flexibility, intelligence, modularity, high speed, high acceleration and other characteristics of the magnetic levitation system to effectively improve the transmission efficiency between the various workstations of the battery assembly line; on the other hand, by setting the second wire body to be higher than the first wire body, and making the two ends of the first wire body connected to the two ends of the second wire body via the lifting part, so that the transmission line body is surrounded to form a closed loop, and the position of the transmission line body below the second wire body forms a space that can enter the enclosure of the transmission line body The internal channel is formed, so that after the mover passes the battery cell to be processed through the Mylar film side plate loading unit, the battery cell loading unit, the coating unit and the unloading unit in sequence, the mover can be transmitted to the position of the Mylar film side plate loading unit again via the closed loop line to realize the circulation of the mover. Compared with the existing double-layer conveyor line transmission method, the distance of the mover's reflux transmission is greatly shortened, which effectively reduces the failure rate of the mover's reflux, and through the above-mentioned channel, it is convenient for personnel / materials to enter the interior of the space enclosed by the closed conveyor line, which not only can utilize the internal storage materials of the space enclosed by the closed loop line to improve the space utilization rate of the battery cell coating production loop line, but also facilitates loading and unloading of materials at each workstation and shortens the loading and unloading path.

[0043] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 A schematic diagram of the layout structure of a cell film production loop provided in an embodiment of the present application;

[0046] Figure 2 for Figure 1The enlarged structural schematic diagram of the cell film production loop line at point A is provided;

[0047] Figure 3 for Figure 1 The enlarged structural schematic diagram of the battery cell film production loop at point B is provided.

[0048] Reference numerals:

[0049] 111-first section; 112-second section; 113-third section; 114-fourth section; 115-turntable; 12-second line body; 13-lifting section; 14-channel; 21-Mylar film material warehouse; 22-side plate material warehouse; 23-first hot melt section; 2411-Mylar film gripper, 2412-side plate gripper; 2413-material loading gripper; 2421-first conveyor line; 2422-second conveyor line; 25-material loading station; 31-cell gripper; 32-first polarity top cover bending device; 33-second polarity cover plate penetration device ;331-plate penetration robot;332-second polarity cover plate feeding part;41-second hot melt part;42-coating device;43-third hot melt part;44-fourth hot melt part;45-gluing mechanism;46-first visual inspection part;47-second visual inspection part;51-first dust removal device;52-scanning and error correction device;53-unloading and grabbing device;531-unloading robot;532-removal slide;541-defective product gripper;542-defective product storage part;551-maintenance station;552-moving arm gripper;6-second dust removal device.

[0050] F1-first direction; F2-second direction. DETAILED DESCRIPTION

[0051] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0052] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed, but merely represents the selected embodiments of the present application.

[0053] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0054] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0055] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] Refer to the following Figures 1 to 3 The present invention describes a battery cell film production loop and a battery production system according to some embodiments of the present application.

[0057] See also Figures 1 to 3 As shown, an embodiment of the first aspect of the present application provides a battery cell coating production loop line, which includes a magnetic levitation transport line, a Mylar film side plate loading unit, a battery cell loading unit, a coating unit and a unloading unit. The magnetic levitation transport line includes a conveyor line body and a mover, which can move along the conveyor line body under the magnetic induction of the conveyor line body.

[0058] The transmission line body includes a first line body, a second line body 12 and a lifting part 13. The transmission plane where the second line body 12 is located is higher than the transmission plane where the first line body is located. The two ends of the second line body 12 are connected to the two ends of the first line body by the lifting part 13, so that the transmission line body is surrounded to form a closed loop, and a channel 14 that can enter the inside of the transmission line body is formed below the second line body 12 of the transmission line body. The Mylar film side plate loading unit, the battery cell loading unit, the coating unit and the unloading unit are arranged in sequence along the transmission direction of the transmission line body.

[0059] The cell coating production loop provided by the present application, on the one hand, replaces the traditional conveyor belt transmission with the transmission method of the magnetic levitation transport loop line, and integrates the transportation and processing of the assembly line mover fixtures, and utilizes the high flexibility, intelligence, modularity, high speed, high acceleration and other characteristics of the magnetic levitation system to effectively improve the transmission efficiency between the various stations of the battery assembly line; on the other hand, by setting the second wire body 12 to be higher than the first wire body, and making the two ends of the first wire body connected to the two ends of the second wire body 12 via the lifting part 13, so that the transmission line body is surrounded to form a closed loop, and the position of the transmission line body below the second wire body 12 forms a passage that can enter the interior of the space enclosed by the transmission line body. Channel 14, in this way, after the mover passes the battery cell to be processed through the Mylar film side plate loading unit, the battery cell loading unit, the coating unit and the unloading unit in sequence, the mover can be transmitted to the position of the Mylar film side plate loading unit again via the closed loop line to realize the circulation of the mover. Compared with the existing double-layer conveyor line transmission method, the distance of the mover's reflux transmission is greatly shortened, which effectively reduces the failure rate of the mover's reflux, and through the above-mentioned channel 14, it is convenient for personnel / materials to enter the interior of the space enclosed by the closed conveyor line, which can not only utilize the internal storage materials of the space enclosed by the closed loop line to improve the space utilization rate of the battery cell coating production loop line, but also facilitate loading and unloading of materials at each workstation and shorten the loading and unloading path.

[0060] It should be noted that the above-mentioned magnetic levitation transport line can be understood as a magnetic levitation transmission device that uses the magnetic levitation principle to achieve transmission (for example, the CN220299746U magnetic levitation transmission device and magnetic levitation transmission line disclosed in Chinese patent document). The transmission principle and transmission structure of the device are both existing technologies in the field and will not be repeated here.

[0061] Preferably, if Figure 1 As shown, the number of the lifting parts 13 can be two, and the two lifting parts 13 are respectively used to connect the two ends of the first wire body and the second wire body 12 corresponding to each other.

[0062] Preferably, the lifting part 13 may be a magnetic levitation conveying device connecting the first wire body and the second wire body 12, but is not limited thereto. As long as the conveying rhythm of the first wire body can be met, the lifting part 13 may also be a robot, an elevator or other lifting equipment.

[0063] Preferably, if Figures 1 to 3 As shown, in the transmission direction perpendicular to the transmission line, the size of the mover is larger than the line width of the transmission line, so that both ends of the mover extend beyond the transmission line. In this way, on the one hand, the carrying space of the mover can be expanded; on the other hand, when the battery cell to be processed is placed on the mover, the battery cell to be processed can extend relative to the transmission line, so that the processing equipment on the transmission line can act on the battery cell to be processed.

[0064] Preferably, if Figure 1 and Figure 3 As shown, when the battery cell to be processed is placed on the mover, the two poles of the battery cell to be processed are relatively arranged at the two ends of the battery cell to be processed in a predetermined direction, and the predetermined direction is perpendicular to the conveying direction of the conveying line. In other words, when the battery cell to be processed is placed on the mover, the two poles of the battery cell to be processed (i.e., the positive pole and the negative pole) can respectively extend out on both sides of the conveying line in a direction perpendicular to its conveying direction.

[0065] Preferably, the mover may include a transmission part and a fixture part connected to each other, the mover is connected to the transmission line body through the transmission part, and the fixture part is used to place the battery cell to be processed. Correspondingly, the size of the fixture part in the transmission direction perpendicular to the closed transmission line may be larger than the width of the transmission line body to ensure the stability of the mover in carrying the battery cell to be processed.

[0066] Preferably, if Figure 1 As shown, the battery cell loading unit and the battery cell unloading unit are respectively arranged at the two ends of the conveyor line in the first direction F1, thereby ensuring that the battery cells to be processed in the battery cell coating production loop flow along the first direction F1 to facilitate product delivery of the following battery production system.

[0067] Preferably, if Figure 1 As shown, the first line body includes a first section 111 , a second section 112 , a third section 113 and a fourth section 114 connected in sequence, and the second line body 12 connects the upstream end of the first section 111 and the downstream end of the fourth section 114 .

[0068] Preferably, if Figure 1 As shown, the first section 111, the third section 113 and the second line body 12 can all extend along the first direction F1, and the second section 112 and the fourth section 114 can both extend along the second direction F2. The second direction F2 intersects with the first direction F1. In other words, the transmission line body encloses a space with a quadrilateral edge. In this way, on the one hand, the cell film production loop line can adapt to the shape of most factory buildings, so as to save the space occupied by the loop line; on the other hand, it is convenient for the cell film production loop line to connect with other production loop lines, thereby improving the adaptability of the cell film production loop line.

[0069] Correspondingly, if Figure 1 As shown, the first wire body may further include a turntable portion 115 , and the first section 111 and the second section 112 , the second section 112 and the third section 113 , the third section 113 and the fourth section 114 , and the fourth section 114 and the second wire body 12 are all connected via the turntable portion 115 .

[0070] Preferably, if Figure 1As shown, the first direction F1 may be perpendicular to the second direction F2, which facilitates the rotation and positioning of the turntable portion 115 on the one hand, and saves the space occupied by the loop line on the other hand.

[0071] Optionally, the turntable portion 115 may be a rotating disk driven by a rotating motor.

[0072] In an embodiment, preferably, Figure 1 and Figure 2 As shown, the Mylar film side plate material feeding unit may include a Mylar film material storehouse 21 for storing Mylar film (also known as Mylar film) and a side plate material storehouse 22 for storing side plates.

[0073] Preferably, if Figure 1 and Figure 2 As shown, the Mylar film material warehouse 21 and the side plate material warehouse 22 can be both arranged in the space enclosed by the conveyor line body, and the channel 14 can be connected to the Mylar film material warehouse 21 and the side plate material warehouse 22 to load the Mylar film material warehouse 21 and the side plate material warehouse 22. In this way, the space of the battery cell film production loop line is greatly saved and the space utilization rate of the battery cell film production loop line is improved.

[0074] Optionally, the battery cell film production loop line may further include an AGV trolley, which can pass through the above-mentioned channel 14 to realize automatic loading of the Mylar film material warehouse 21 and the side plate material warehouse 22 .

[0075] Preferably, if Figure 1 and Figure 2 As shown, the Mylar film side plate feeding unit may further include a first hot-melt portion 23 for hot-melt fixing the Mylar film and the side plate.

[0076] Optionally, not shown in the figure, the first hot melt section 23 may be a hot melt machine, which may include a hot melt head capable of generating heat and a moving mechanism for driving the hot melt head to move. When the hot melt machine starts working, the moving mechanism drives the hot melt head to act on the Mylar film, so that the Mylar film is partially melted under the action of the hot melt head and adhered to the object to be fixed (such as a side panel, a battery cell to be processed), thereby fixing the Mylar film. It should be noted that the hot melt machine is an existing product in the art, and the driving structure and hot melt principle of its moving mechanism are both existing technologies in the art, which will not be described in detail here.

[0077] Preferably, if Figure 1 and Figure 2 As shown, the Mylar film side plate loading unit may further include a circulation component, which may include a circulation moving line and a circulation grabbing portion, wherein the Mylar film material warehouse 21, the side plate material warehouse 22 and the first hot melt portion 23 are sequentially arranged along the flow direction of the circulation moving line, and the circulation moving line may transfer materials among the Mylar film material warehouse 21, the side plate material warehouse 22 and the first hot melt portion 23.

[0078] Preferably, the above-mentioned flow grabbing section can be arranged close to the Mylar film material warehouse 21, the side plate material warehouse 22 and the first hot melt section 23, so as to facilitate the transfer of materials between the Mylar film material warehouse 21 and the transfer line, between the side plate material warehouse 22 and the transfer line, between the first hot melt section 23 and the transfer line, and between the transfer line and the material loading station 25 described below.

[0079] Optionally, as an example not shown in the figure, the flow grabbing part can flow and move along the flow moving line to sequentially grab the Mylar film of the Mylar film material library 21 and the side plate of the side plate material library 22 to the first hot melt part 23, and then grab the combination of the Mylar film and the side plate that have been hot-melt fixed to the mover, thereby realizing the loading of the Mylar film and the side plate.

[0080] Alternatively, if Figure 1 and Figure 2 As shown, a material loading station 25 is provided on the conveyor line body, and the flow grabbing part can grab the combination of the Mylar film and the side plate that have been hot-melt fixed to the mover in the material loading station 25 to ensure the accuracy and timeliness of material loading.

[0081] Preferably, if Figure 1 and Figure 2 As shown, the material loading station 25 can be arranged in the first section 111 so that the mover refluxed through the second wire body 12 can directly enter the material loading station 25 to realize the circulation of the mover.

[0082] Preferably, if Figure 1 and Figure 2 As shown, the side panel material storehouse 22 and the Mylar film material storehouse 21 can be arranged side by side along the first direction F1 on the inner side of the first section 111 to facilitate the loading and conveying of the Mylar film and the side panels.

[0083] Preferably, if Figure 1 and Figure 2 As shown, the above-mentioned flow moving line may include a first conveying line 2421, which may extend along a first direction F1, and the above-mentioned side panel material storehouse 22 and Mylar film material storehouse 21 are both arranged on the side of the first conveying line 2421 away from the first section 111, so as to transfer the Mylar film of the Mylar film material storehouse 21 to the loading position of the side panel material storehouse 22 of the first conveying line 2421.

[0084] Preferably, if Figure 2 As shown, the flow grabbing section may include a Mylar film grabber 2411 , which is disposed between the Mylar film material warehouse 21 and the first conveying line 2421 to grab the Mylar film in the Mylar film material warehouse 21 to the first conveying line 2421 .

[0085] Similarly, if Figure 2 As shown, the above-mentioned flow grabbing part may include a side panel grabber 2412, which is arranged between the side panel material warehouse 22 and the first conveying line 2421 to grab the side panels in the side panel material warehouse 22 to the first conveying line 2421 and place them on the corresponding position of the Mylar film.

[0086] Preferably, if Figure 1 and Figure 2 As shown, the above-mentioned circulation moving line may also include a second conveying line 2422, and the second conveying line 2422 may extend along the first direction F1. The above-mentioned first hot melt portion 23 is arranged at one end of the second conveying line 2422, and the other end of the second conveying line 2422 is aligned with the above-mentioned material loading station 25, so as to facilitate the transfer of the binding member fixed by the first hot melt portion 23 to the material loading station 25. In this way, the circulation moving line is split into the first conveying line 2421 and the second conveying line 2422 arranged in parallel, which effectively shortens the span of the Mylar film side plate loading unit in the first direction F1, so that the span of the Mylar film side plate loading unit in the first direction F1 is less than the length of the above-mentioned first section 111, so that the Mylar film side plate loading unit effectively avoids blocking the above-mentioned channel 14, ensures the patency of the channel 14, and saves the space occupied by the Mylar film side plate loading unit.

[0087] Preferably, although not shown in the figure, the above-mentioned circulation moving line can also be provided with a conveying carrier, which can circulate on the first conveyor line 2421 and the second conveyor line 2422, and the conveying carrier is provided with placement positions for placing the Mylar film and the side panels to facilitate the positioning and fixation of the Mylar film and the side panels.

[0088] Preferably, not shown in the figure, the above-mentioned circulation moving line can also include a third conveyor line and a fourth conveyor line, and the third conveyor line and the fourth conveyor line are respectively connected to the two ends of the first conveyor line 2421 and the second conveyor line 2422, so that the material of the first conveyor line 2421 is transmitted to the second conveyor line 2422 via the third conveyor line, and the conveying carrier can flow back to the first conveyor line via the fourth conveyor line, thereby realizing the circulation transmission of the circulation moving line. It should be noted that the transmission of materials between the first conveyor line 2421 and the second conveyor line 2422 is not limited to the form of the circulation transmission line formed by the third conveyor line and the fourth conveyor line. Optionally, the side plate gripper 2412 can also move between the first conveyor line 2421 and the second conveyor line 2422 to grab the side plate and the Mylar film placed on the first conveyor line 2421 and grab them to the second conveyor line 2422, so as to fix the first hot melt part 23 set on the second conveyor line 2422. Optionally, the material loading gripper 2413 can also move between the second conveyor line 2422 and the first conveyor line 2421 to grab the empty conveying carrier to the first conveyor line 2421, so as to realize the circulation of the conveying carrier on the circulation moving line.

[0089] Optionally, the above-mentioned flow moving line can be a magnetic levitation transportation device, but is not limited to this. As long as the flow and transmission rhythm of the flow moving line can be achieved, the flow moving line can also be other transmission devices, such as a conveyor belt.

[0090] Preferably, if Figure 2 As shown, the above-mentioned flow grabbing part can also include a material loading gripper 2413, and the material loading gripper 2413 can be aligned with the above-mentioned material loading station 25.

[0091] Preferably, if Figure 2 As shown, the material loading gripper 2413 can be arranged between the second conveyor line 2422 and the above-mentioned first section 111 to grab the above-mentioned coupling component that flows through the second conveyor line 2422 to the grabbing range of the material loading gripper 2413 to the mover in the material loading station 25.

[0092] However, it is not limited to this. The above-mentioned flow moving line is not limited to the above-mentioned segmented form. As long as it can execute the flow of assembly and loading of Mylar membrane and side panels, the above-mentioned flow moving line can also be in the form of a loop line or in the form of upper and lower multi-layer transmission.

[0093] In addition, the circulation component is not limited to the above-mentioned circulation moving line and circulation grabbing part. As long as the assembly and loading of the Mylar film and the side plate can be performed, the above-mentioned circulation component can also be in the form of a circulation track and a circulation robot that are slidably connected to each other, that is, the Mylar film material warehouse 21, the side plate material warehouse 22, the first hot melt part 23 and the material loading station 25 are arranged along the circulation track, and the circulation robot slides on the circulation slide to grab the Mylar film and the side plate one by one, grab both the Mylar film and the side plate to the first hot melt part 23 for hot melting and fixing, and then grab the combination of the two in the first hot melt part 23 again and move it to the mover in the material loading station 25 to realize the material loading action.

[0094] Optionally, the Mylar film gripper 2411, the side plate gripper 2412 and the material loading gripper 2413 may all be manipulators, fork feeding mechanisms, and the like.

[0095] Preferably, the Mylar film gripper 2411, the side plate gripper 2412 and the material loading gripper 2413 may include a plurality of gripping stations, so that the Mylar film side loading unit can load multiple groups of materials simultaneously, thereby improving the material loading efficiency.

[0096] In an embodiment, Figure 1 and Figure 3 As shown, the conveyor line may also be provided with a cell loading station. Preferably, the cell loading station may be provided in the second section 112, so as to facilitate the cell flow of the battery production system described below along the first direction F1.

[0097] Correspondingly, if Figure 1 As shown, the battery cell loading unit can be disposed on the side of the second section 112 .

[0098] Preferably, if Figure 1 and Figure 2 As shown, the above-mentioned battery cell loading unit may include a battery cell gripper 31. When the mover carrying the Mylar film and the side plate flows into the battery cell loading station, the battery cell gripper 31 can grab the battery cell to be processed to a predetermined position of the mover to realize the battery cell loading action.

[0099] Preferably, if Figure 1 and Figure 3As shown, the battery cell loading unit can also include a first polarity top cover bending device 32 and a second polarity cover plate passing device 33, the first polarity top cover bending device is used to bend the first polarity pole ear of the battery cell to be processed, so that the first polarity top cover of the battery cell to be processed is set on the end of the battery cell to be processed, and the second polarity cover plate passing device 33 can pass the second polarity cover on the second polarity pole ear of the battery cell to be processed, the first polarity top cover bending device 32 and the second polarity cover plate passing device 33 are relatively arranged in a conveying direction perpendicular to the conveying line body, so that when the battery cell to be processed is conveyed between the first polarity top cover bending device 32 and the second polarity cover plate passing device 33, the first polarity top cover bending device 32 and the second polarity cover plate passing device 33 can act on both ends of the battery cell to be processed at the same time, so as to realize the simultaneous execution of the first polarity top cover bending and the second polarity cover plate passing actions, thereby further improving the assembly efficiency of the battery cell coating production loop line.

[0100] It should be noted that the battery cells to be processed loaded at the battery cell loading station can be understood as bare battery cells formed after completing the stacking process, and the battery cells whose pole ears of the first polarity are pre-welded with the corresponding top covers.

[0101] Preferably, if Figure 1 and Figure 3 As shown, the first polarity top cover bending device can be a battery ear bending device, which is an existing device in the art and its structure will not be described in detail here.

[0102] Preferably, if Figure 1 and Figure 3 As shown, the second polarity cover plate penetration device 33 may include a penetration robot 331, which can clamp the second polarity cover plate and sleeve the second polarity cover plate on the outer side of the second polarity pole ear of the battery cell to be processed to realize the penetration action of the second polarity cover plate.

[0103] Preferably, if Figure 1 and Figure 3 As shown, the second polarity cover plate threading device 33 may further include a second polarity cover plate loading portion 332, which may be arranged on the inner side of the space enclosed by the conveyor line body, so as to facilitate loading of the second polarity cover plate via the AGV trolley, and the threading robot 331 may clamp the second polarity cover plates one by one from the second polarity cover plate loading portion 332.

[0104] Optionally, the second polarity cover plate loading part 332 may be a vibration plate to facilitate loading of the second polarity cover plates one by one.

[0105] like Figure 3As shown, the first polarity shown in the figure is an example of a negative electrode and a second polarity is a positive electrode, but it is not limited to this. The installation sequence of the positive electrode cover and the negative electrode cover can be adaptively adjusted according to the assembly process sequence of the battery cell. In other words, the above-mentioned first polarity can also be a positive electrode, and the second polarity can also be a negative electrode.

[0106] In an embodiment, preferably, Figure 1 As shown, the coating unit may further include a second hot melt unit 41, which may be disposed downstream of the cell feeding unit. When the mover moves to the processing area of ​​the second hot melt unit 41, the second hot melt unit 41 may act on the bottom surface of the cell to be processed to hot-melt and fix the Mylar film to the bottom surface of the cell to be processed, so as to facilitate the positioning of the Mylar film in the downstream coating process. Similarly, the second hot melt unit 41 may also be the hot melt machine.

[0107] Preferably, if Figure 1 As shown, the second hot melt portion 41 can be arranged downstream of the battery cell feeding unit of the second section 112 .

[0108] Alternatively, if Figure 1 As shown, the second hot melt section 41 may include a plurality of hot melt machines, which may be arranged in sequence along the conveying direction of the second section 112, so that the second hot melt section 41 may simultaneously perform hot melt fixation on the bottom of a plurality of batteries to be processed, thereby improving the production efficiency and capacity of the battery cell film production line.

[0109] like Figure 1 As shown, the above-mentioned coating unit may further include a coating device 42, which can bend the portion of the Mylar film that exceeds the battery cell to be processed in sequence along the outer contour of the battery cell to be processed, so that the Mylar film covers the battery cell to be processed for at least one week.

[0110] It should be noted that the coating device 42 may be a cell Mylar film coating device, which is an existing device in the art, and its structure and coating principle are existing technologies in the art, which will not be described in detail here.

[0111] Preferably, if Figure 1 As shown, the above-mentioned coating device 42 can also be arranged on the second section 112. In this way, the second section 112 is provided with the above-mentioned second hot melt portion 41 and the coating device 42 on the downstream side of the second polarity cover plate penetration device 33, which enables the third section 113 to form a certain loading space connected to the channel 14 between the second polarity cover plate penetration device 33 in the second direction F2, so as to facilitate the loading of the second polarity cover plate penetration device 33.

[0112] Preferably, if Figure 1As shown, there can be multiple coating devices 42, and multiple coating stations can be set on each coating device 42, so that the battery cell coating production line can simultaneously perform coating processes of multiple batteries to be processed, thereby improving the production efficiency and capacity of the battery cell coating production line.

[0113] Alternatively, if Figure 1 As shown, the number of the coating stations, the number of hot melt machines included in the above-mentioned second hot melt section 41, the number of the first polarity top cover bending devices 32, the number of the second polarity cover plate threading devices 33 and the number of grabbing stations of the Mylar film side plate feeding unit (as well as the number of each operating station in the subsequent process, in other words, the operating stations of each subsequent process can also be arranged in sequence along the conveying direction of the conveyor line body. The principles and beneficial effects are similar to the setting of multiple operating stations in the above-mentioned process, and will not be repeated later) can all be set accordingly. The corresponding setting in quantity here can be understood as the number of several being equal, or it can be understood that the numbers of any two of the several can be integer multiples of each other (the integer multiples here include 1 times, 2 times...N times, N is a positive integer) to ensure the maximization of the production capacity utilization of the battery cell coating production loop.

[0114] Preferably, if Figure 1 As shown, the above-mentioned coating device 42 can also include a third hot melt portion 43, which is arranged downstream of the coating device 42. When the mover moves to the processing area of ​​the third hot melt portion 43, the third hot melt portion 43 can act on the top surface of the battery cell to be processed to hot-melt and fix the Mylar film to the top surface of the battery cell to be processed, so as to facilitate the fourth hot melt portion 44 described below to fix the Mylar film seam.

[0115] Similarly, the third hot melt section 43 may also be the above-mentioned hot melt machine.

[0116] Furthermore, if Figure 1 As shown, the above-mentioned coating device 42 can also include a fourth hot melt portion 44, which is arranged downstream of the third hot melt portion 43. When the mover moves to the processing area of ​​the fourth hot melt portion 44, the fourth hot melt portion 44 can act on the seam side of the seam of the Mylar film of the battery cell to be processed, so as to hot-melt and fix the two ends of the Mylar film on the seam side respectively, thereby realizing the fixation of the Mylar film.

[0117] It should be noted that the seam of the above-mentioned Mylar film can be set on the side determined by the thickness direction and the length direction (i.e., the predetermined direction) of the battery cell to be processed, that is, the seam side is on the side determined by the thickness direction and the length direction (i.e., the predetermined direction) of the battery cell to be processed.

[0118] Preferably, if Figure 1As shown, the fourth hot melt section 44 may include two groups of hot melt machines, which are respectively arranged on both sides of the width direction of the battery cell to be processed (that is, when the mover enters the operating station of the fourth hot melt section 44, the two groups of hot melt machines are respectively arranged on both sides of the mover in the conveying direction), so that the hot melt section can respectively act on the seam side of the battery cell to be processed and the other side of the battery cell to be processed that is opposite to the seam side, so as to further improve the connection stability between the Mylar film and the battery cell.

[0119] Preferably, if Figure 1 As shown, the fourth hot melt section 44 may include a glue sticking mechanism 45, which is disposed downstream of the fourth hot melt section 44, and the glue sticking mechanism 45 can stick insulating glue on the outer side of the seam of the Mylar film. It should be noted that the glue sticking mechanism 45 is a prior art device, and its glue sticking principle and setting structure are prior art in the art, which will not be described in detail here.

[0120] Similarly, if Figure 1 As shown, the third hot melt portion 43, the fourth hot melt portion 44 and the gluing mechanism 45 can all be arranged in the third section 113. In this way, the third hot melt portion 43 and the fourth hot melt portion 44 can occupy part of the space of the third section 113, so that the gluing mechanism 45 can be relatively far away from the Mylar film side plate feeding unit and the second polarity cover plate through-plate device 33, avoiding mutual interference among the feeding path of the gluing mechanism, the feeding path of the Mylar film side plate feeding unit and the feeding path of the second polarity cover plate feeding part 332.

[0121] Preferably, if Figure 1 As shown, the number of the above-mentioned gluing mechanisms 45 can be multiple groups, and the multiple groups of gluing mechanisms 45 are arranged in sequence along the conveying direction of the conveying line body, and at least one of the multiple groups of gluing mechanisms 45 is a spare gluing mechanism 45. In this way, when at least one of the multiple groups of gluing mechanisms 45 needs to be replaced or repaired, it can be replaced by the spare gluing mechanism 45 to ensure that the battery cell film production loop line does not need to be shut down for glue replacement or repair.

[0122] Preferably, if Figure 1 As shown, the film coating unit may further include a first visual inspection unit 46, which is disposed downstream of the glue sticking mechanism 45 and is used to inspect the sticking quality of the insulating glue.

[0123] Optionally, the first visual detection unit 46 may be an image acquisition device, such as a CCD camera.

[0124] Preferably, the first visual inspection unit 46 can be installed above the third section 113, so that the first inspection device can collect image information of the battery cell to be inspected by flying camera, thereby realizing the inspection of the attachment quality of the insulating glue.

[0125] Preferably, if Figure 1 As shown, the film coating unit may further include a second visual inspection unit 47, which is disposed downstream of the fourth hot-melt unit 44 to inspect the quality of the hot-melt fixing points.

[0126] Optionally, not shown in the figures, the second visual inspection unit 47 may include multiple image acquisition devices, which respectively correspond to the top surface, bottom surface and two side surfaces of the battery cell to be processed, so as to respectively collect information of hot melt fixing points on the top surface, bottom surface and two side surfaces of the battery cell to be processed.

[0127] In an embodiment, preferably, Figure 1 As shown, the unloading unit may include a first dust removal device 51, which is disposed downstream of the coating unit to remove dust from the battery cells to be processed that have completed the coating process.

[0128] Optionally, the first dust removal device 51 may be a negative pressure adsorption device to remove dust on the surface of the battery cell to be processed by negative pressure adsorption. However, it is not limited thereto, and as long as the dust on the surface of the battery cell to be processed can be removed, the first dust removal device 51 may also be other methods, such as electrostatic dust removal, mechanical sweeping, etc.

[0129] Preferably, if Figure 1 As shown, the first dust removal device 51 can be arranged in the third section 113 so that the span of the third section 113 in the first direction F1 is equal to the sum of the spans of the first section 111 and the second line body 12 in the first direction F1, thereby improving the space utilization and layout rationality of the battery cell film production loop.

[0130] Preferably, if Figure 1 As shown, the above-mentioned unloading unit may also include a scanning and error-checking device 52, including at least one scanning unit, to identify the code of the battery cell to be processed and the code of the corresponding mover after the scanning and error-checking device 52, and then determine whether there is an error in the correspondence between the mover of the battery cell film production loop and the battery cell to be processed, and then determine whether there is a program error in the battery cell film production loop. Optionally, the scanning unit may be a barcode scanning gun or other barcode scanning and recognition equipment.

[0131] Preferably, if Figure 1 As shown, the above-mentioned unloading unit can also include an unloading grabbing device 53. The above-mentioned conveyor line body is provided with an unloading station. The unloading grabbing device 53 is arranged at the unloading station to move qualified battery cells to be processed out of the conveyor line body.

[0132] Alternatively, if Figure 1 As shown, the unloading grabbing device 53 may include an unloading robot 531 for moving qualified battery cells to be processed out of the conveyor line.

[0133] Preferably, if Figure 1 As shown, the unloading grabbing device 53 may also include a removal chute 532, which may be arranged in a direction perpendicular to the conveying direction of the conveying line body, and the removal chute 532 may extend from the upper side of the conveying line body to the outside of the space enclosed by the conveying line body, so as to facilitate the unloading robot 531 to grab qualified battery cells to be processed and move them to the outside of the conveying line body.

[0134] Optionally, not shown, the unloading unit may further include a good product transfer device, which is disposed on one side of the unloading station and is used to store and / or transfer qualified cells to be processed. Correspondingly, the good product transfer device may be disposed outside the space enclosed by the conveyor line, and the removal slide 532 may extend to the location of the good product transfer device to transfer the cells to be processed that are removed from the outside of the conveyor line to the good product transfer device.

[0135] Optionally, the good product transfer device may be a material rack, a conveying device or other storage and transportation device.

[0136] Preferably, if Figure 1 As shown, the unloading station and the unloading grabbing device 53 are both arranged in the fourth section 114 so as to facilitate the flow of the cells to be processed in the cell coating production line along the first direction F1, thereby facilitating the product transfer of the battery production system described below.

[0137] Correspondingly, if Figure 1 As shown, the extension direction of the above-mentioned removal slide 532 can be a first direction F1.

[0138] Preferably, if Figure 1 As shown, the above-mentioned unloading unit may also include a defective product outflow station, which is arranged downstream of the unloading station. The defective product outflow station may include a defective product storage part 542 and a defective product gripper 541. The defective product gripper 541 can automatically transfer unqualified battery cells to be processed to the defective product storage part 542 to realize the unloading of defective products.

[0139] Similarly, the structure of the defective product storage unit 542 may be similar to the above-mentioned good product transfer device, and will not be described in detail.

[0140] Preferably, if Figure 1 As shown, the battery cell coating production loop line may also include a mover maintenance section, which is arranged on the downstream side of the unloading unit. The mover maintenance section may include a mover gripper 552 and a maintenance station 551, and the maintenance station 551 is arranged on one side of the conveyor line body. The mover gripper 552 can grab the mover and move it between the conveyor line body and the maintenance station 551 to repair the faulty mover under the conveyor line body.

[0141] Preferably, if Figure 1 As shown, the cell film production loop line may further include a second dust removal device 6, which is disposed on the upstream side of the Mylar film side plate loading unit to remove dust from the refluxed movers, thereby ensuring the cleanliness of the movers before use.

[0142] It should be noted that the dust removal structure and principle of the second dust removal device 6 are similar to those of the first dust removal device 51 described above, and will not be described in detail.

[0143] The embodiment of the second aspect of the present application also provides a battery production system, including the battery cell film production loop line described in any of the above embodiments, and thus has all the beneficial technical effects of the battery cell film production loop line, which will not be repeated here.

[0144] Optionally, the battery production system may further include a cell loading device, which can transfer the cell to be processed to the vicinity of the cell loading station of the cell coating production line to facilitate the cell gripper 31 to grip it.

[0145] Preferably, the conveying direction of the battery cell loading device may be the first direction F1, so as to enable the battery cells in the battery production system to flow along the first direction F1, thereby facilitating the transportation of the battery cells.

[0146] Optionally, the battery cell loading device can be a conveying device such as a conveyor belt, a magnetic suspension device, an AGV trolley, etc.

[0147] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A battery core film production loop line, characterized in that: It includes a magnetic suspension transport line, a Mylar film side plate loading unit, a battery core loading unit, a coating unit and a unloading unit. The magnetic suspension transport line includes a conveyor line body and a mover. The mover can move along the conveyor line body under the magnetic induction of the conveyor line body. The transmission line body comprises a first line body, a second line body and a lifting part, the transmission plane where the second line body is located is higher than the transmission plane where the first line body is located, and the two ends of the second line body are respectively connected to the two ends of the first line body by the lifting part, so that the transmission line body is surrounded to form a closed loop, and a channel capable of entering the interior of the transmission line body is formed below the location of the second line body of the transmission line body; The Mylar film side plate loading unit, the battery cell loading unit, the coating unit and the unloading unit are arranged in sequence along the conveying direction of the conveying line.

2. The battery core film production loop line according to claim 1, characterized in that: The battery cell loading unit and the battery cell unloading unit are respectively arranged at two ends of the conveying line body in the first direction.

3. The battery core film production loop line according to claim 2, characterized in that: The first line body includes a first segment, a second segment, a third segment and a fourth segment connected in sequence, and the second line body connects an upstream end of the first segment and a downstream end of the fourth segment.

4. The battery core film production loop line according to claim 3, characterized in that: The first segment, the third segment and the second line body all extend along the first direction, the second segment and the fourth segment both extend along the second direction, the second direction intersects with the first direction, the first line body also includes a turntable portion, the first segment and the second segment, the second segment and the third segment, the third segment and the fourth segment, and the fourth segment and the second line body are all connected via the turntable portion.

5. The battery core film production loop line according to claim 1, characterized in that: The Mylar film side plate feeding unit comprises: Mylar film material warehouse, used to store Mylar film; Side plate material warehouse, used to store side plates; A first hot-melt portion, used for hot-melting and fixing the Mylar film and the side plate; The circulation component includes a circulation moving line and a circulation grabbing part. The Mylar film material library, the side plate material library and the first hot melt part are arranged in sequence along the flow direction of the circulation moving line. The circulation grabbing part can move on the circulation moving line to sequentially grab the Mylar film of the Mylar film material library and the side plate of the side plate material library to the first hot melt part, and then grab the combination of the Mylar film and the side plate that have been fixed by hot melting to the mover.

6. The battery core film production loop line according to claim 5, characterized in that: The Mylar film material storehouse, the side plate material storehouse, the first hot melt section and the circulation assembly are all arranged in a space surrounded by the conveyor line body, and the channel is connected to the Mylar film material storehouse and the side plate material storehouse.

7. The battery core film production loop line according to claim 1, characterized in that: The conveyor line body is provided with a battery cell loading station, and the battery cell loading unit includes a battery cell gripper; When the mover carrying the Mylar film and the side plate flows into the battery cell loading station, the battery cell gripper can grab the battery cell to be processed to a predetermined position of the mover.

8. The battery core film production loop line according to claim 7, characterized in that: When the battery cell to be processed is placed on the mover, the two poles of the battery cell to be processed are relatively arranged at two ends of the battery cell to be processed in a predetermined direction, and the predetermined direction is perpendicular to the transmission direction of the transmission line body; The battery cell loading unit also includes a first polarity top cover bending device and a second polarity cover plate passing device, the first polarity top cover bending device is used to bend the first polarity pole ear of the battery cell to be processed so that the first polarity top cover of the battery cell to be processed is covered on the end of the battery cell to be processed, and the second polarity cover plate passing device can pass the second polarity cover on the second polarity pole ear of the battery cell to be processed, and the first polarity top cover bending device and the second polarity cover plate passing device are relatively arranged in a conveying direction perpendicular to the conveying line body.

9. The battery core film production loop line according to claim 1, characterized in that: The coating unit comprises: A second hot-melt portion is arranged downstream of the battery cell feeding unit, and when the mover moves to the processing area of ​​the second hot-melt portion, the second hot-melt portion can act on the bottom surface of the battery cell to be processed to hot-melt and fix the Mylar film to the bottom surface of the battery cell to be processed; A film wrapping device capable of sequentially bending the portion of the Mylar film that exceeds the battery cell to be processed along the outer contour of the battery cell to be processed, so that the Mylar film wraps the battery cell to be processed for at least one week; A third hot-melt portion is arranged downstream of the coating device, and when the mover moves to the processing area of ​​the third hot-melt portion, the third hot-melt portion can act on the top surface of the battery cell to be processed to hot-melt and fix the Mylar film to the top surface of the battery cell to be processed; The fourth hot-melt portion is arranged downstream of the third hot-melt portion. When the mover moves to the processing area of ​​the fourth hot-melt portion, the fourth hot-melt portion can act on the side of the seam where the seam of the Mylar film of the battery cell to be processed is located, so as to hot-melt and fix the two ends of the Mylar film on the side of the seam respectively; A gluing mechanism, disposed downstream of the fourth hot-melt section, capable of attaching insulating glue to the outer side of the seam of the Mylar film; A first visual inspection unit, disposed downstream of the adhesive sticking mechanism, for inspecting the sticking quality of the insulating adhesive; The second visual inspection unit is arranged downstream of the fourth hot-melt unit and is used to inspect the quality of the hot-melt fixing points.

10. The battery core film production loop line according to claim 9, characterized in that: The number of the gluing mechanisms is multiple, and the multiple groups of gluing mechanisms are arranged in sequence along the conveying direction of the conveying line body, and at least one of the multiple groups of gluing mechanisms is a spare gluing mechanism.

11. The battery core film production loop line according to claim 1, characterized in that: The unloading unit includes: A first dust removal device is arranged downstream of the coating unit to remove dust from the battery cells to be processed after the coating process is completed; A scanning and error-correcting device, comprising at least one scanning unit, for identifying the code of the to-be-processed cell and the corresponding code of the mover passing through the scanning and error-correcting device; A material unloading and grabbing device, wherein the conveyor line body is provided with a material unloading station, and the material unloading and grabbing device is arranged at the material unloading station to move the qualified battery cells to be processed out of the conveyor line body; The defective product outflow station is arranged downstream of the unloading station, and the defective product outflow station includes a defective product storage part and a defective product gripper, and the defective product gripper can transfer the unqualified battery cells to be processed from the mover to the defective product storage part.

12. The battery core film production loop line according to claim 1, characterized in that: Also includes: A second dust removal device is arranged at the upstream side of the Mylar membrane side plate feeding unit to remove dust from the refluxed mover; The mover maintenance section is arranged at the downstream side of the unloading unit, and the mover maintenance section includes a mover gripper and a maintenance station. The maintenance station is arranged at one side of the conveyor line body, and the mover gripper can grab the mover and move it between the conveyor line body and the maintenance station.

13. A battery production system, characterized in that: A battery cell film production loop comprising the battery cell film production loop according to any one of claims 1 to 12.

Images