Battery pack film pasting machine

Abstract

The battery film coating and gluing machine realizes full-automatic edge folding, film coating, film coating hot melting welding and film coating interface gluing of the battery on one equipment, has the advantages of flat film coating, high film coating precision, high film coating efficiency, stable gluing, high gluing precision, high gluing efficiency, good gluing effect and high degree of automation, and further has the advantages of small equipment size, low equipment cost and low battery processing cost.

Description

Technical Field

[0001] This utility model relates to the field of adhesive applicators, and more particularly to a battery pack film adhesive applicator. Background Technology

[0002] Mylar film boasts excellent heat resistance (-70℃ to 150℃), high light transmittance (>90%), and mechanical flexibility, making it widely used in electronics, audio, aerospace, and flexible display industries. Some models of Mylar film achieve insulation levels up to YAEB or 94V-0 flame retardant standards, making them suitable for high-temperature environments. As an insulating layer for battery cells, Mylar film (polyester film) is wrapped around the electrode assembly through hot-melt or adhesive backing processes, enabling it to resist electrolyte corrosion and puncture (tensile strength >200MPa), making it suitable for protecting the tab area of ​​prismatic / soft-pack batteries. Traditionally, Mylar coating of batteries is done manually. First, the Mylar film is creased manually. Then, the battery is placed on the Mylar film and the coating is applied manually. After manual coating, adhesive is applied to secure the Mylar film interface. However, manual creasing is prone to errors, resulting in significant discrepancies between the crease size and the battery size. This causes loosening between the battery and the Mylar film, and the adhesive at the interface is prone to detachment, reducing the yield rate of battery coating. Later, semi-automated battery coating equipment appeared on the market. This equipment performs battery coating, hot-melt welding, and adhesive application separately. However, this equipment is bulky, expensive, and has low efficiency in coating, hot-melt welding, and adhesive application, resulting in high processing costs and hindering the needs of industrial development. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a battery pack film applicator.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The battery wrapping adhesive applicator includes a frame, a wrapping positioning component, a side wrapping mechanism, a first top folding component, a second top folding component, an upper wrapping mechanism, a side end lower folding component, a bottom hot melt welding component, a first adhesive applicator, and a second adhesive applicator. The wrapping positioning component is installed on the top of the frame and is used to support the wrapping and the battery. The side wrapping mechanism is installed inside the frame and is used to fold the wrapping on one side of the bottom of the battery upwards and adhere the wrapping to the side of the battery. The first top folding component and the second top folding component are respectively installed on both sides of the wrapping positioning component, and the first top folding component and the second top folding component together laterally push the wrapping on one side of the battery towards the upper surface of the battery. The coating mechanism is mounted on the frame and is used to attach the coating film on the upper surface of the battery to the top surface and two end faces of the battery and to perform heat fusion welding on the coating interface of the battery after coating. The side lower folding edge assembly is mounted in the frame and located below the coating positioning assembly. The side lower folding edge assembly attaches the coating film on both sides of the bottom of the battery to the two end faces of the battery. The bottom heat fusion welding assembly is mounted in the frame and located below the coating positioning assembly. The bottom heat fusion welding assembly is used to heat fusion weld the coating film on the bottom of the battery to the bottom of the battery. The bottom heat fusion welding assembly, the side lower folding edge assembly and the side coating mechanism are arranged in sequence. The first coating mechanism and the second coating mechanism are respectively mounted on both sides of the upper coating mechanism and are used to coat the coated battery to fix the coating interface.

[0005] Preferably, the coating positioning assembly includes a coating positioning platform and a base plate. The coating positioning platform is mounted on the frame and is used to support the coating and the battery. The end of the coating positioning platform away from the side coating mechanism is integrally formed with an upwardly protruding side limiting block for lateral reference positioning of the battery. The end of the coating positioning platform near the side coating mechanism is recessed with at least one clearance groove. The base plate is mounted on the coating positioning platform and located above at least one clearance groove. The top of the coating positioning platform is equipped with at least one suction cup for clamping the coating. The coating positioning platform is equipped with a vacuum connector for an external vacuum system.

[0006] Preferably, the side wrapping mechanism includes a side wrapping horizontal moving component, a horizontal moving frame, a side folding component, and a side wrapping component. The side wrapping horizontal moving component is installed in the frame. The horizontal moving frame is installed in the frame by the side wrapping horizontal moving component moving laterally. The side folding component is installed on one side of the horizontal moving frame near the side end lower folding component and is used to fold the wrapping on the bottom side of the battery upward. The side wrapping component is installed in the horizontal moving frame and is used to wrap one side of the battery. The side folding assembly includes a push rod lifting drive device, a push rod mounting plate, and a push rod. The push rod lifting drive device is longitudinally mounted on one side of the horizontal moving frame near the side lower folding assembly. The push rod mounting plate is located above the push rod lifting drive device and is connected to the output end of the push rod lifting drive device. The push rod is mounted on the top of the push rod mounting plate and is used to fold the film on the bottom side of the battery upward. The side coating assembly includes a first drive device mounting frame, a mounting frame lifting drive device, a push seat lifting drive device, a first drive device mounting plate, a push seat translation drive device, and a push seat. At least one linear guide rail is longitudinally mounted on each of the two side walls within the frame. The first drive device mounting frame is lifted and moved within the frame via at least two linear guide rails. The mounting frame lifting drive device is longitudinally mounted within the translational frame and located below the first drive device mounting frame. The output end of the mounting frame lifting drive device is drive-connected to the first drive device mounting frame. The push seat lifting drive device is longitudinally mounted on the top of the first drive device mounting frame. The first drive device mounting plate is located above the push seat lifting drive device and is connected to the output end of the push seat lifting drive device. The push seat translation drive device is transversely mounted on the first drive device mounting plate. The push seat is mounted on the output end of the push seat translation drive device and is used to press and adhere the coating to one side of the battery.

[0007] Specifically, the first top folding assembly includes a toggle positioning drive device, a second drive device mounting plate, a side toggle drive device, and a toggle. The toggle positioning drive device is horizontally mounted on the wrapping positioning platform. The second drive device mounting plate is mounted on the output end of the toggle positioning drive device. The side toggle drive device is mounted on the second drive device mounting plate. The toggle is mounted on the output end of the side toggle drive device and is used to horizontally push the wrapping on one side of the battery to bend towards the upper surface of the battery. The structure of the second top folding assembly is mirror-symmetrical to that of the first top folding assembly.

[0008] Preferably, the upper wrapping mechanism includes an upper wrapping lateral movement assembly, an upper wrapping slide, an upper wrapping longitudinal movement assembly, an upper wrapping frame, an upper wrapping flattening assembly, a side end upper folding assembly, and a side end hot melt welding assembly. The upper wrapping lateral movement assembly is mounted on the frame, the upper wrapping slide is drivenly connected to the upper wrapping lateral movement assembly, and the upper wrapping lateral movement assembly drives the upper wrapping slide to move laterally. The upper wrapping longitudinal movement assembly is mounted on the upper wrapping slide, and the upper wrapping frame is drivenly connected to the upper wrapping longitudinal movement assembly. The drive assembly is connected, and the upper film longitudinal movement assembly drives the upper film frame to move up and down. The upper film flattening assembly is installed on the upper film frame and is used to attach the film on the upper surface of the battery to the top surface of the battery. The side upper folding assembly is installed on the upper film frame and is used to attach the film on both sides of the top of the battery to the two end faces of the battery. The side hot melt welding assembly is installed on the upper film frame and is used to hot melt weld the film on the top surface of the battery and the two end faces to the top surface and the two end faces of the battery, respectively. The upper film flattening assembly includes at least two connecting columns, a buffer plate, at least two spring guide rod assemblies, an upper pressure plate, a first side pressure plate, and a second side pressure plate. At least two connecting columns are longitudinally installed at the bottom of the upper film frame. The buffer plate is connected to the upper film frame through at least two connecting columns. At least two spring guide rod assemblies are longitudinally installed at the bottom of the buffer plate. The upper pressure plate is connected to the buffer plate through at least two spring guide rod assemblies. The first side pressure plate and the second side pressure plate are respectively installed on both ends of the upper pressure plate. The bottom of the first side pressure plate and the second side pressure plate are respectively provided with inclined surfaces for folding the film on both sides of the top of the battery, and the inclined surfaces of the first side pressure plate and the second side pressure plate are arranged opposite to each other. The side-end upper folding assembly includes a third drive device mounting plate, an upper folding plate lifting drive device, an upper folding plate mounting plate, and two upper folding plates. The third drive device mounting plate is mounted on the upper wrapping frame. The upper folding plate lifting drive device is longitudinally mounted at the bottom of the upper third drive device mounting plate. The upper folding plate mounting plate is mounted below the upper folding plate lifting drive device and is connected to the output end of the upper folding plate lifting drive device. The two upper folding plates are respectively mounted on the two ends of the upper folding plate mounting plate and are respectively located on both sides of the upper pressure plate. The side-end hot-melt welding assembly includes a welding assembly lifting drive device, a welding lifting frame, a welding assembly lateral movement drive device, a first welding assembly mounting plate, at least one upper welding assembly, a first clamping arm, a second clamping arm, a first side welding assembly, and a second side welding assembly. The welding assembly lifting drive device is mounted at the bottom of the third drive device mounting plate. The welding lifting frame is located below the welding assembly lifting drive device and is connected to the output end of the welding assembly lifting drive device. The first welding assembly mounting plate is mounted at the bottom of the welding lifting frame, and at least one upper welding assembly is mounted at the bottom of the first welding assembly mounting plate. The welding assembly is used to heat-melt the film on the top surface of the battery to weld it to the top surface of the battery; the welding assembly transverse drive device is installed inside the welding lifting frame, the first clamping arm and the second clamping arm are located below the welding assembly transverse drive device, and the first clamping arm and the second clamping arm are respectively installed on the two output ends of the welding assembly transverse drive device, the first side welding assembly and the second side welding assembly are respectively installed on the two opposite sides of the first clamping arm and the second clamping arm, and the first side welding assembly and the second side welding assembly are respectively used to heat-melt and weld the film after downward folding and upward folding on the two end faces of the battery to the two end faces of the battery; The upper welding assembly includes a heat insulation support, a heating strip, and two heating strip mounting blocks. The bottom of the heat insulation support extends downward and is integrally formed with a mounting part. The heating strip is mounted on the mounting part of the heat insulation support and is used to heat melt the coating. The two heating strip mounting blocks are respectively mounted on two sides of the heat insulation support and are used to fix the two ends of the heating strip on the two sides of the mounting part. The structures of the first side welding assembly and the second side welding assembly are the same as those of the upper welding assembly.

[0009] Preferably, the side-end folding edge assembly includes a folding edge support plate, a folding edge plate lifting drive device, and a folding edge plate mounting plate. The folding edge support plate is installed inside the frame, the folding edge plate lifting drive device is longitudinally installed on the folding edge support plate, and the folding edge plate mounting plate is located above the folding edge plate lifting drive device. The folding edge plate mounting plate is connected to the output end of the folding edge plate lifting drive device. Positioning blocks are installed on both ends of the folding edge plate mounting plate, and each positioning block is equipped with a folding edge plate for folding the film on both sides of the bottom of the battery upwards.

[0010] Specifically, the bottom hot-melt welding assembly includes a lower welding base frame, a heating strip lifting device, a column frame, a second welding assembly mounting plate, and at least one lower welding assembly. The lower welding base frame is installed inside the frame, the heating strip lifting device is longitudinally installed on the lower welding base frame, the column frame is installed above the heating strip lifting device, and the column frame is connected to the output end of the heating strip lifting device. The second welding assembly mounting plate is installed on the top of the column frame, and at least one lower welding assembly is installed on the second welding assembly mounting plate and is used to hot-melt and weld the film at the bottom of the battery to the bottom of the battery.

[0011] Specifically, the first tape coating mechanism includes a tape-applying upright plate, an unwinding roller, a first conveyor roller, a second conveyor roller, a third conveyor roller, a tape-pressing assembly, a tape-pulling assembly, a tape-cutting assembly, and a tape-applying assembly. The tape-applying upright plate is mounted on one side of the upper film-coating frame. The unwinding roller is mounted on one side of the tape-applying upright plate and is used to unwind the tape. The first, second, and third conveyor rollers are respectively mounted on the same side of the tape-applying upright plate and are used to convey the tape. The tape-pressing assembly is mounted on the same side of the tape-applying upright plate and is used to press the tape onto the second and third conveyor rollers. The tape-pulling assembly is mounted on the other side of the tape-applying upright plate and is used to pull out a predetermined length of tape. The tape-cutting assembly is mounted on the same side of the tape-applying upright plate and is located between the tape-pressing assembly and the tape-pulling assembly. The tape-applying assembly is mounted on the same side of the tape-applying upright plate and is located between the tape-cutting assembly and the tape-pulling assembly. The adhesive pressing assembly includes an adhesive pressing drive device and an adhesive pressing base. The adhesive pressing drive device is mounted on the adhesive application plate, and the adhesive pressing base is mounted on the output end of the adhesive pressing drive device. The adhesive application assembly includes an adhesive application mounting plate, an adhesive application positioning drive device, a second drive device mounting frame, an adhesive application seat drive device, and an adhesive application seat. The adhesive application vertical plate is mounted on the adhesive application mounting plate, the adhesive application positioning drive device is mounted horizontally on the adhesive application mounting plate, the second drive device mounting frame is mounted on the output end of the adhesive application positioning drive device, the adhesive application seat drive device is mounted horizontally on the second drive device mounting frame, and the adhesive application seat is located on the side of the adhesive application seat drive device near the upper wrapping mechanism, and the adhesive application seat is connected to the output end of the adhesive application seat drive device. The side of the adhesive application seat facing the upper wrapping mechanism is recessed with an adhesive application groove, and the side of the adhesive application seat facing the upper wrapping mechanism is also provided with suction holes for tightening the adhesive tape. The two opposite side walls inside the adhesive application groove are respectively equipped with brushes for smoothing the adhesive tape and adhering it to the wrapping film on the top and bottom of the battery. The cutting assembly includes a cutting drive device, a cutting blade mounting plate, and a cutting blade. The cutting drive device is horizontally mounted on the top of the second drive device mounting frame. The cutting blade mounting plate is located on the side of the cutting drive device near the upper wrapping mechanism, and the cutting blade mounting plate is connected to the output end of the cutting drive device. The cutting blade is mounted on the cutting blade mounting plate with the blade facing the cutting drive device. The adhesive application assembly includes a clamping arm lifting drive, a fourth drive mounting plate, a clamping arm opening and closing drive, a first clamping arm, and a second clamping arm. The clamping arm lifting drive is longitudinally mounted on the other side of the adhesive application stand. The fourth drive mounting plate is located below the clamping arm lifting drive and is connected to the output end of the clamping arm lifting drive. The clamping arm opening and closing drive is laterally mounted on the fourth drive mounting plate. The first and second clamping arms are respectively mounted on the two output ends of the clamping arm opening and closing drive and are used to clamp the adhesive tape.

[0012] Specifically, the structure of the second coating mechanism is mirror-symmetrical to that of the first coating mechanism. The first coating mechanism and the second coating mechanism respectively coat the two ends of the battery to fix the interface of the battery coating.

[0013] Preferably, a controller or control system is provided for signal control of components such as the film positioning assembly, side film coating mechanism, first top folding assembly, second top folding assembly, upper film coating mechanism, side lower folding assembly, bottom hot melt welding assembly, first adhesive coating mechanism and second adhesive coating mechanism. The controller is a PLC programmable logic controller. The PLC programmable logic controller can be a programmable logic controller of model XDS-40T-D, but is not limited thereto.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: 1. It achieves wrapping the bottom of the battery through the wrapping positioning component, wrapping one side of the battery through the side wrapping mechanism, lateral folding of the wrapping on one side of the battery through the first and second top folding components, pre-folding of the wrapping on both sides of the top of the battery through the upper wrapping mechanism, folding and pressing the wrapping on both sides of the top of the battery onto the two end faces of the battery through the side upper folding component, and finally, folding and pressing of the wrapping on both sides of the top of the battery onto the two end faces of the battery through the side lower folding component. The system enables the film on both sides of the bottom of the battery to be pushed and adhered to the two end faces of the bottom of the battery. The upper and lower side folding components work together to wrap the two end faces of the battery. The side hot melt welding component enables the wrapping and hot melt welding of the top surface and the two end faces of the battery. The bottom hot melt welding component enables the hot melt welding of the film on the bottom surface of the battery and welding it to the bottom surface of the battery. The first and second adhesive wrapping mechanisms enable the automatic adhesive wrapping of both ends of the battery to fix the interface of the battery film.

[0015] 2. Its overall structural design enables fully automated processing of batteries on a single machine, including edge folding and film coating, hot-melt welding of the film coating, and adhesive coating of the film interface. It offers advantages such as precise edge folding, smooth film coating, high precision, high efficiency, stable adhesive coating, high precision, high efficiency, good coating effect, and a high degree of automation. It also reduces equipment size and costs, lowering battery processing costs. This effectively solves the problems of large folding errors, poor coating effect, and low yield rate associated with traditional manual methods of Mylar film folding and battery coating. Furthermore, it addresses the issues of low efficiency, high processing costs, large equipment size, and high equipment costs associated with semi-automatic battery coating equipment that requires multiple processes and different machines to complete film coating, hot-melt welding, and adhesive coating. Attached Figure Description

[0016] For ease of explanation, the present invention will be described in detail below with reference to the preferred embodiments and accompanying drawings.

[0017] Figure 1 This is a perspective view of the battery pack film applicator of this utility model.

[0018] Figure 2 This is a perspective view of the film positioning component of the battery pack film applicator of this utility model.

[0019] Figure 3 This is a perspective view of the side wrapping mechanism of the battery pack film applicator of this utility model.

[0020] Figure 4 This utility model relates to a battery pack film applicator. Figure 3 3D images from different angles.

[0021] Figure 5 This is a perspective view of the first or second top film-folding assembly of the battery pack film-applying machine of this utility model.

[0022] Figure 6 This is an assembly perspective view of the upper coating mechanism, the first coating mechanism, and the second coating mechanism of the battery pack coating machine of this utility model.

[0023] Figure 7 This is a perspective view of the upper wrapping mechanism of the battery pack film applicator of this utility model.

[0024] Figure 8 This is a perspective view of the upper film flattening component of the battery pack film applicator of this utility model.

[0025] Figure 9This is an assembly perspective view of the upper film flattening component and the side upper folding edge component of the battery pack film applicator of this utility model.

[0026] Figure 10 This is a perspective view of the side hot melt welding assembly of the battery pack film applicator of this utility model.

[0027] Figure 11 This is a perspective view of the upper welding component of the battery pack film applicator of this utility model.

[0028] Figure 12 This is a perspective view of the side-end folding edge assembly of the battery pack film applicator of this utility model.

[0029] Figure 13 This is a perspective view of the bottom hot melt welding component of the battery pack film applicator of this utility model.

[0030] Figure 14 This is a three-dimensional structural view of the first coating mechanism of the battery pack film coating machine of this utility model.

[0031] Figure 15 This is a three-dimensional structural view of the adhesive application component of the battery pack film applying machine of this utility model.

[0032] Figure 16 This is a three-dimensional structural view of the adhesive application base of the battery pack film applying machine of this utility model.

[0033] Figure 17 This is a three-dimensional structural view of the adhesive application component of the battery pack film applicator of this utility model. Detailed Implementation

[0034] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0036] Reference Figure 1As shown, the battery wrapping adhesive applicator of this utility model includes a frame 1, a wrapping positioning assembly 2, a side wrapping mechanism 3, a first top folding assembly 41, a second top folding assembly 42, an upper wrapping mechanism 5, a side end lower folding assembly 6, a bottom hot melt welding assembly 7, a first adhesive applicator 81, and a second adhesive applicator 82. The wrapping positioning assembly 2 is installed on the top of the frame 1 and is used to support the wrapping and the battery. The side wrapping mechanism 3 is installed inside the frame 1 and is used to fold the wrapping on the bottom side of the battery upwards and adhere the wrapping to the side of the battery. The first top folding assembly 41 and the second top folding assembly 42 are respectively installed on the two sides of the wrapping positioning assembly 2, and the first top folding assembly 41 and the second top folding assembly 42 together laterally push the wrapping on one side of the battery towards the upper surface of the battery. The upper wrapping mechanism... 5 is mounted on the frame 1 and is used to attach the film on the upper surface of the battery to the top surface and two end faces of the battery and to perform hot melt welding on the film interface of the battery after film coating. The side end lower folding edge assembly 6 is mounted in the frame 1 and is located below the film positioning assembly 2. The side end lower folding edge assembly 6 attaches the film on both sides of the bottom of the battery to the two end faces of the battery. The bottom hot melt welding assembly 7 is mounted in the frame 1 and is located below the film positioning assembly 2. The bottom hot melt welding assembly 7 is used to perform hot melt welding on the film at the bottom of the battery to weld it to the bottom of the battery. The bottom hot melt welding assembly 7, the side end lower folding edge assembly 6 and the side film coating mechanism 3 are arranged in sequence. The first coating mechanism 81 and the second coating mechanism 82 are respectively mounted on the two sides of the upper film coating mechanism 5 and are used to coat the coated battery to fix the film interface.

[0037] Reference Figure 2 As shown, the coating positioning assembly 2 includes a coating positioning platform 21 and a base plate 22. The coating positioning platform 21 is mounted on the frame 1 and is used to support the coating and the battery. The end of the coating positioning platform 21 away from the side coating mechanism 3 is integrally formed with a side limiting block 23 for lateral reference positioning of the battery. The end of the coating positioning platform 21 near the side coating mechanism 3 is recessed with at least one clearance groove 24. The base plate 22 is mounted on the coating positioning platform 21 and is located above at least one clearance groove 24. The top of the coating positioning platform 21 is equipped with at least one suction cup 25 for clamping the coating. The coating positioning platform 21 is equipped with a vacuum connector 26 for connecting an external vacuum system.

[0038] By adopting the above technical solution, when the film is placed on the film positioning table 21, the suction cup 25 will hold the film tightly on the film positioning table 21, and the battery will be placed on one end of the film to achieve bottom film covering of the battery. The bottom support plate 22 supports the film and the battery, avoiding wrinkles in the film at the clearance groove 24, making the battery stable and the film positioning stable, thus ensuring the quality of the battery film.

[0039] Reference Figure 3As shown, the side coating mechanism 3 includes a side coating horizontal moving assembly 31, a horizontal moving frame 32, a side folding assembly 33, and a side coating assembly 34. The side coating horizontal moving assembly 31 is installed in the frame 1. The horizontal moving frame 32 is installed in the frame 1 by moving laterally through the side coating horizontal moving assembly 31. The side folding assembly 33 is installed on the side surface of the horizontal moving frame 32 near the side lower folding assembly 6 and is used to fold the coating on the bottom side of the battery upward. The side coating assembly 34 is installed in the horizontal moving frame 32 and is used to coat one side of the battery.

[0040] Reference Figure 3 As shown, the side folding film assembly 33 includes a push rod lifting drive device 331, a push rod mounting plate 332, and a push rod 333. The push rod lifting drive device 331 is longitudinally mounted on one side surface of the flat pushing moving frame 32 near the side lower folding edge assembly 6. The push rod mounting plate 332 is located above the push rod lifting drive device 331 and is connected to the output end of the push rod lifting drive device 331. The push rod 333 is mounted on the top of the push rod mounting plate 332 and is used to fold the film on the bottom side of the battery upwards.

[0041] Reference Figure 3 and Figure 4 As shown, the side wrapping assembly 34 includes a first drive device mounting frame 341, a mounting frame lifting drive device 342, a pusher lifting drive device 343, a first drive device mounting plate 344, a pusher translation drive device 345, and a pusher 346. At least one linear guide rail 347 is longitudinally mounted on each of the two side walls within the frame 1. The first drive device mounting frame 341 is lifted and moved within the frame 1 via at least two linear guide rails 347. The mounting frame lifting drive device 342 is longitudinally mounted within the translational frame 32 and located below the first drive device mounting frame 341. The output end of the lifting drive device 342 is connected to the first drive device mounting frame 341. The push seat lifting drive device 343 is longitudinally mounted on the top of the first drive device mounting frame 341. The first drive device mounting plate 344 is located above the push seat lifting drive device 343 and is connected to the output end of the push seat lifting drive device 343. The push seat translation drive device 345 is horizontally mounted on the first drive device mounting plate 344. The push seat 346 is mounted on the output end of the push seat translation drive device 345 and is used to press the film tightly and attach it to one side of the battery.

[0042] By adopting the above technical solution, the mounting frame lifting drive device 342 drives the first drive device mounting frame 341 to rise to pre-position the film on the side of the battery; the push rod lifting drive device 331 drives the push rod mounting plate 332 to move upward, thereby driving the push rod 333 to move upward, and the push rod 333 pushes the film on the bottom side of the battery to realize automatic upward folding of the film, preparing for the push seat 346 to press the film and attach it to one side of the battery; the push seat lifting drive device 343 drives the push seat translation drive device 345 and the push seat 346 to move up and down to adapt to side film coating of batteries of different thicknesses, and the side film translation movement assembly 31 drives the translation movement frame 3 2. The side folding film assembly 33 and the side wrapping film assembly 34 move towards the battery. The pusher 346 of the side wrapping film assembly 34 pushes the wrapping film on the side of the battery onto the side of the battery. At the same time, the push rod lifting drive device 331 drives the push rod mounting plate 332 to move downward, thereby driving the push rod 333 to move downward to avoid the pusher 346 pushing the wrapping film. The pusher translation drive device 345 drives the pusher 346 to press the wrapping film onto the side of the battery, thus wrapping one side of the battery. It is suitable for side wrapping of batteries of different thicknesses, has strong versatility, and not only automatically completes the upward folding and side wrapping of the battery, but also has the advantages of high wrapping efficiency and low wrapping cost.

[0043] In this embodiment, the side-wrapping flat-push moving assembly 31 includes a servo motor, a ball screw, and at least two slide rails. The servo motor and the at least two slide rails are both mounted within the frame 1. The ball screw is connected to the output shaft of the servo motor and is also connected to the flat-push moving frame 32 via a transmission connection. The flat-push moving frame 32 is slidably mounted on the at least two slide rails. The servo motor drives the flat-push moving frame 32 to move back and forth on the at least two slide rails via the ball screw. The push rod lifting drive device 331, the mounting bracket lifting drive device 342, the push seat lifting drive device 343, and the push seat translation drive device 345 are preferably all configured as cylinders.

[0044] Reference Figure 5 As shown, the first top folding assembly 41 includes a toggle positioning drive device 411, a second drive device mounting plate 412, a side toggle drive device 413, and a toggle 414. The toggle positioning drive device 411 is horizontally mounted on the wrapping positioning stage 21. The second drive device mounting plate 412 is mounted on the output end of the toggle positioning drive device 411. The side toggle drive device 413 is mounted on the second drive device mounting plate 412. The toggle 414 is mounted on the output end of the side toggle drive device 413 and is used to horizontally push the wrapping on one side of the battery to bend towards the upper surface of the battery. The structure of the second top folding assembly 42 is mirror-symmetrical to the structure of the first top folding assembly 41.

[0045] By adopting the above technical solution, the toggle positioning drive device 411 of the first top folding assembly 41 drives the second drive device mounting plate 412, the side toggle drive device 413 and the toggle 414 to move towards the battery on the wrapping positioning platform 21, so that the toggle 414 moves to one side of the battery. The side toggle drive device 413 of the first top folding assembly 41 drives the toggle 414 to move, thereby pushing the wrapping on one side of the battery to bend towards the upper surface of the battery. Since the structure of the second top folding assembly 42 is mirror-symmetrical to the structure of the first top folding assembly 41, the working principle of the second top folding assembly 42 is the same as that of the first top folding assembly 41. This allows the first top folding assembly 41 and the second top folding assembly 42 to push the two ends of the wrapping on one side of the battery to bend towards the upper surface of the battery, thereby realizing the lateral folding of the wrapping on one side of the battery. It has the advantages of precise battery wrapping folding, good battery wrapping folding effect and high battery wrapping folding efficiency.

[0046] In this embodiment, the toggle positioning drive device 411 is preferably configured as a cylinder. The side toggle drive device 413 is preferably configured as a slide cylinder.

[0047] Reference Figure 6 and Figure 7 As shown, the upper wrapping mechanism 5 includes an upper wrapping lateral movement assembly 51, an upper wrapping slide 52, an upper wrapping longitudinal movement assembly 53, an upper wrapping frame 54, an upper wrapping flattening assembly 55, a side end upper folding assembly 56, and a side end hot-melt welding assembly 57. The upper wrapping lateral movement assembly 51 is mounted on the frame 1. The upper wrapping slide 52 is connected to the upper wrapping lateral movement assembly 51, and the upper wrapping lateral movement assembly 51 drives the upper wrapping slide 52 to move laterally. The upper wrapping longitudinal movement assembly 53 is mounted on the upper wrapping slide 52. The upper wrapping frame 54 and the upper wrapping slide 55 are connected to the frame 1. The upper coating longitudinal moving component 53 is driven and connected, and the upper coating frame 54 is moved up and down by the upper coating longitudinal moving component 53. The upper coating flattening component 55 is installed on the upper coating frame 54 and is used to attach the coating on the upper surface of the battery to the top surface of the battery. The side upper folding component 56 is installed on the upper coating frame 54 and is used to attach the coating on both sides of the top of the battery to the two end faces of the battery. The side hot melt welding component 57 is installed on the upper coating frame 54 and is used to hot melt weld the coating on the top surface of the battery and the two end faces to the top surface and the two end faces of the battery, respectively.

[0048] By adopting the above technical solution, the upper coating lateral movement component 51 drives the upper coating slide 52, the upper coating longitudinal movement component 53, the upper coating frame 54, the upper coating flattening component 55, the side upper folding component 56, and the side hot melt welding component 57 to move onto the coating positioning component 2 to prepare for subsequent coating and hot melt welding of the battery.

[0049] In this embodiment, the upper coating lateral movement assembly 51 includes a servo motor, a ball screw, and at least two slide rails. The servo motor and the at least two slide rails are both installed inside the frame 1. The ball screw is connected to the output shaft of the servo motor and is also connected to the upper coating slide 52 via a transmission connection. The upper coating slide 52 is slidably mounted on the at least two slide rails. The servo motor drives the upper coating slide 52 to move laterally on the at least two slide rails via the ball screw.

[0050] The upper wrapping longitudinal movement assembly 53 includes a servo motor, a linear module, and a synchronous belt assembly. The servo motor and the linear module are mounted on the upper wrapping slide 52. The servo motor is driven by the linear module through the synchronous belt assembly. The upper wrapping frame 54 is driven by the linear module. The servo motor drives the upper wrapping frame 54 to move up and down through the synchronous belt assembly and the linear module. The linear module and the synchronous belt assembly are common components in mechanical design, and their specific structures and working principles are common knowledge and will not be explained in detail here.

[0051] Reference Figure 8 As shown, the upper coating flattening assembly 55 includes at least two connecting posts 551, a buffer plate 552, at least two spring guide rod assemblies 553, an upper pressure plate 554, a first side pressure plate 555, and a second side pressure plate 556. At least two connecting posts 551 are longitudinally installed at the bottom of the upper coating frame 54. The buffer plate 552 is connected to the upper coating frame 54 through at least two connecting posts 551. At least two spring guide rod assemblies 553 are longitudinally installed at the bottom of the buffer plate 552. The upper pressure plate 554 is connected to the buffer plate 552 through at least two spring guide rod assemblies 553. The first side pressure plate 555 and the second side pressure plate 556 are respectively installed on both ends of the upper pressure plate 554. The bottom of the first side pressure plate 555 and the second side pressure plate 556 are respectively provided with inclined surfaces 557 for folding the coating on both sides of the top of the battery, and the inclined surfaces 557 of the first side pressure plate 555 and the second side pressure plate 556 are arranged opposite to each other.

[0052] In this embodiment, the spring guide rod assembly 553 includes a guide post and a spring sleeved on the guide post. The upper pressure plate 554 is mounted on the buffer plate 552 by moving up and down through the guide post. The two ends of the spring abut against the buffer plate 552 and the upper pressure plate 554 respectively.

[0053] By adopting the above technical solution, when the upper coating longitudinal moving component 53 drives the upper coating frame 54 to move downward, the upper coating frame 54 drives the buffer plate 552 to move downward through the connecting column 551. The buffer plate 552 drives the upper pressure plate 554 to move downward through the spring guide rod assembly 553, pressing the coating above the battery and attaching it to the top surface of the battery. During this process, the spring guide rod assembly 553 presses the upper pressure plate 554 to buffer the coating. At the same time, the upper pressure plate 554 drives the first side pressure plate 555 and the second side pressure plate 556 to move downward. The two inclined surfaces 557 of the first side pressure plate 555 and the second side pressure plate 556 push the coating on both sides of the top of the battery downward to achieve downward folding of the coating on the top of the battery. This realizes automated coating and folding of the top of the battery, and the battery coating folding efficiency is high and the battery coating folding effect is good, ensuring good battery coating folding quality.

[0054] Reference Figure 9 As shown, the side-end upper folding assembly 56 includes a third drive device mounting plate 561, an upper folding plate lifting drive device 562, an upper folding plate mounting plate 563, and two upper folding plates 564. The third drive device mounting plate 561 is mounted on the upper wrapping frame 54. The upper folding plate lifting drive device 562 is longitudinally mounted at the bottom of the upper third drive device mounting plate 561. The upper folding plate mounting plate 563 is mounted below the upper folding plate lifting drive device 562 and is connected to the output end of the upper folding plate lifting drive device 562. The two upper folding plates 564 are respectively mounted on the two ends of the upper folding plate mounting plate 563 and are located on both sides of the upper pressure plate 554.

[0055] By adopting the above technical solution, the upper folding plate lifting drive device 562 drives the upper folding plate mounting plate 563 to move downward, thereby driving the two upper folding plates 564 to move downward. The two upper folding plates 564 respectively push the film on the two end faces of the top of the battery and make it adhere to the two end faces of the top of the battery, realizing automatic film coating on the two end faces of the top of the battery. The film coating on the two end faces of the top of the battery is flat, the film coating efficiency is high and the film coating effect is good, thus ensuring the quality of the battery film coating.

[0056] In this embodiment, the upper folding plate lifting drive device 562 is preferably configured as a cylinder.

[0057] Reference Figure 10As shown, the side-end hot-melt welding assembly 57 includes a welding assembly lifting drive device 571, a welding lifting frame 572, a welding assembly lateral movement drive device 573, a first welding assembly mounting plate 574, at least one upper welding assembly 575, a first clamping arm 576, a second clamping arm 577, a first side welding assembly 578, and a second side welding assembly 579. The welding assembly lifting drive device 571 is mounted at the bottom of the third drive device mounting plate 561. The welding lifting frame 572 is located below the welding assembly lifting drive device 571 and is connected to the output end of the welding assembly lifting drive device 571. The first welding assembly mounting plate 574 is mounted at the bottom of the welding lifting frame 572, and at least one upper welding assembly 575 is mounted on the first welding assembly. The bottom of the component mounting plate 574 is used to heat-melt weld the film on the top surface of the battery to the top surface of the battery; the welding component transverse drive device 573 is installed inside the welding lifting frame 572, the first clamping arm 576 and the second clamping arm 577 are located below the welding component transverse drive device 573, and the first clamping arm 576 and the second clamping arm 577 are respectively installed on the two output ends of the welding component transverse drive device 573, the first side welding component 578 and the second side welding component 579 are respectively installed on the two opposite sides of the first clamping arm 576 and the second clamping arm 577, and the first side welding component 578 and the second side welding component 579 are respectively used to heat-melt and weld the film after downward folding and upward folding on the two end faces of the battery to the two end faces of the battery.

[0058] In this embodiment, the welding assembly lifting drive device 571 is preferably configured as a cylinder. The welding assembly lateral movement drive device 573 is preferably configured as a finger-gripping cylinder.

[0059] Reference Figure 11 As shown, the upper welding assembly 575 includes a heat insulation support 5751, a heating strip 5752, and two heating strip mounting blocks 5753. The bottom of the heat insulation support 5751 extends downward and is integrally formed with a mounting portion 5754. The heating strip 5752 is mounted on the mounting portion 5754 of the heat insulation support 5751 and is used to heat-melt the coating. The two heating strip mounting blocks 5753 are respectively mounted on the two sides of the heat insulation support 5751 and are used to fix the two ends of the heating strip 5752 to the two sides of the mounting portion 5754 respectively. The structure of the first side welding assembly 578 and the second side welding assembly 579 is the same as that of the upper welding assembly 575.

[0060] By adopting the above technical solution, the welding component lifting drive device 571 of the side hot-melt welding component 57 drives the welding lifting frame 572 to move downward, thereby driving the welding component lateral movement drive device 573, the first welding component mounting plate 574, at least one upper welding component 575, the first clamping arm 576, the second clamping arm 577, the first side welding component 578, and the second side welding component 579 to move downward together. At least one upper welding component 575 presses the film and hot-melt welds the film to the top surface of the battery; the welding component lateral movement drive device... The first clamping arm 576 and the second clamping arm 577 are driven to move closer to each other, thereby driving the first side welding component 578 and the second side welding component 579 to press the film on the two end faces of the battery. The first side welding component 578 and the second side welding component 579 perform heat melting and welding on the film on the two end faces of the battery after the downward and upward folding edges are respectively, and weld it to the two end faces of the battery. This realizes the fully automatic completion of the heat melting and welding of the film on the top surface and the two end faces of the battery. Moreover, the heat melting welding efficiency is high and the heat melting welding effect is good, so as to ensure the quality of the finished battery.

[0061] Reference Figure 12 As shown, the side-end lower folding edge assembly 6 includes a lower folding edge support plate 61, a lower folding edge plate lifting drive device 62, and a lower folding edge plate mounting plate 63. The lower folding edge support plate 61 is installed inside the frame 1. The lower folding edge plate lifting drive device 62 is longitudinally installed on the lower folding edge support plate 61. The lower folding edge plate mounting plate 63 is located above the lower folding edge plate lifting drive device 62 and is connected to the output end of the lower folding edge plate lifting drive device 62. Positioning blocks 64 are respectively installed on both ends of the lower folding edge plate mounting plate 63. Each positioning block 64 is respectively equipped with a lower folding edge plate 65 for folding the film on both sides of the bottom of the battery upward.

[0062] By adopting the above technical solution, when the side-end upper folding assembly 56 pushes the film on both sides of the top of the battery and makes it adhere to the two end faces of the top of the battery, the film coating of the two end faces of the top of the battery is completed. When the lower folding plate lifting drive device 62 of the side-end lower folding assembly 6 drives the lower folding plate mounting plate 63 to move upward, the lower folding plate mounting plate 63 drives the two lower folding plates 65 to move upward through the positioning block 64 respectively. The two lower folding plates 65 push the film on both sides of the bottom of the battery and make it adhere to the two end faces of the bottom of the battery, thus realizing the automatic film coating of the two end faces of the bottom of the battery. At this point, the film coating of the two end faces of the battery is completed, which prepares for the subsequent hot melt welding of the film coating of the two end faces of the battery.

[0063] In this embodiment, the lower folding plate lifting drive device 62 is preferably configured as a cylinder.

[0064] Reference Figure 13As shown, the bottom hot-melt welding assembly 7 includes a lower welding base frame 71, a heating bar lifting device 72, a column frame 73, a second welding assembly mounting plate 74, and at least one lower welding assembly 75. The lower welding base frame 71 is installed inside the frame 1. The heating bar lifting device 72 is longitudinally installed on the lower welding base frame 71. The column frame 73 is located above the heating bar lifting device 72 and is connected to the output end of the heating bar lifting device 72. The second welding assembly mounting plate 74 is installed on the top of the column frame 73. At least one lower welding assembly 75 is installed on the second welding assembly mounting plate 74 and is used to hot-melt and weld the film at the bottom of the battery to the bottom of the battery.

[0065] By adopting the above technical solution, the heating bar lifting device 72 drives the column frame 73, the second welding component mounting plate 74 and at least one lower welding component 75 to move upward, so that at least one lower welding component 75 heat-melts and welds the film on the bottom surface of the battery to the bottom surface of the battery.

[0066] In this embodiment, the heating bar lifting device 72 is preferably configured as a cylinder.

[0067] Reference Figure 14 As shown, the first tape coating mechanism 81 includes a tape-applying upright plate 810, an unwinding roller 811, a first conveyor roller 812, a second conveyor roller 813, a third conveyor roller 814, a tape-pressing assembly 815, a tape-pulling assembly 816, a tape-cutting assembly 817, and a tape-applying assembly 818. The tape-applying upright plate 810 is mounted on one side of the upper film-coating frame 54. The unwinding roller 811 is mounted on one side of the tape-applying upright plate 810 and is used to unwind the tape. The first conveyor roller 812, the second conveyor roller 813, and the third conveyor roller 814 are sequentially mounted on the same side of the tape-applying upright plate 810. The adhesive tape is conveyed by a pressing assembly 815, which is mounted on the same side of the adhesive application plate 810 and is used to press the adhesive tape onto the second conveyor roller 813 and the third conveyor roller 814. The adhesive tape pulling assembly 816 is mounted on the other side of the adhesive application plate 810 and is used to pull out a predetermined length of adhesive tape. The adhesive tape cutting assembly 817 is mounted on the same side of the adhesive application plate 810 and is located between the pressing assembly 815 and the pulling assembly 816. The adhesive application assembly 818 is mounted on the same side of the adhesive application plate 810 and is located between the cutting assembly 817 and the pulling assembly 816.

[0068] By adopting the above technical solution, the tape roll is mounted on the unwinding roller 811. The tape is drawn out from the tape roll on the unwinding roller 811 and sequentially passes around the first conveyor roller 812, the second conveyor roller 813, and the third conveyor roller 814. The pressing assembly 815 presses the front end of the tape onto the second conveyor roller 813 and the third conveyor roller 814 to fix the front end of the tape. The cutting assembly 817 moves forward toward the front end of the tape and accommodates the front end of the tape therein. The pulling assembly 816 moves toward the pressing assembly 815 and clamps the front end of the tape. Then, the pressing assembly 815 releases the tape, and the pulling assembly 816 moves away from the pressing assembly 815. The tape is pulled out to a predetermined length by moving the tape. Then, the tape pressing assembly 815 presses the tape onto the second conveyor roller 813 and the third conveyor roller 814 to fix the tape. The tape applying assembly 818 moves toward the tape and sucks the tape. The tape cutting assembly 817 cuts the tape and retracts to reset. The tape pulling assembly 816 releases the tape. The tape applying assembly 818 drives the tape toward the film positioning assembly 2 and applies the tape to the film on the side of the battery to further fix the film interface. This ensures that the tape is applied smoothly at the battery film interface. The film interface is fixed through two processes: hot melt welding and tape application, which makes the battery film stable and ensures the quality of the battery film.

[0069] Reference Figure 14 As shown, the adhesive pressing assembly 815 includes an adhesive pressing drive device 8151 and an adhesive pressing base 8152. The adhesive pressing drive device 8151 is mounted on the adhesive application stand 810, and the adhesive pressing base 8152 is mounted on the output end of the adhesive pressing drive device 8151.

[0070] By adopting the above technical solution, the adhesive tape driving device 8151 drives the adhesive tape pressing seat 8152 to move in the direction of the second conveyor roller 813 and the third conveyor roller 814, which can fix the adhesive tape on the second conveyor roller 813 and the third conveyor roller 814.

[0071] In this embodiment, the pressure-pressing drive device 8151 is preferably configured as a cylinder.

[0072] Reference Figure 15 and Figure 16As shown, the adhesive application assembly 818 includes an adhesive application mounting plate 8180, an adhesive application positioning drive device 8181, a second drive device mounting bracket 8182, an adhesive application seat drive device 8183, and an adhesive application seat 8184. The adhesive application vertical plate 810 is mounted on the adhesive application mounting plate 8180, the adhesive application positioning drive device 8181 is horizontally mounted on the adhesive application mounting plate 8180, the second drive device mounting bracket 8182 is mounted on the output end of the adhesive application positioning drive device 8181, and the adhesive application seat drive device 8183 is horizontally mounted on the second drive device mounting bracket 8184. 2. The adhesive applicator 8184 is located on the side of the adhesive applicator drive device 8183 near the upper wrapping mechanism 5, and the adhesive applicator 8184 is connected to the output end of the adhesive applicator drive device 8183. The adhesive applicator 8184 has an adhesive applicator groove 8185 recessed on the side facing the upper wrapping mechanism 5, and a suction hole 8186 for suctioning the adhesive tape is also provided on the side facing the upper wrapping mechanism 5. The two opposite side walls of the adhesive applicator groove 8185 are respectively equipped with brushes 8187 for brushing the adhesive tape flat and sticking it to the wrapping film on the top and bottom of the battery.

[0073] By adopting the above technical solution, when the upper wrapping transverse moving component 51 of the upper wrapping mechanism 5 drives the upper wrapping longitudinal moving component 53, the upper wrapping frame 54, and the first adhesive coating mechanism 81 to move together to one side of the wrapping positioning component 2, the adhesive coating positioning drive device 8181 of the adhesive coating component 818 drives the second drive device mounting bracket 8182, the adhesive coating seat drive device 8183, the adhesive coating seat 8184, and the brush 8187 to move towards the wrapping positioning component 2 and dock with the wrapping positioning component 2 to place the adhesive coating seat 8184 into place. 184 is moved to the side of the tape. The suction hole 8186 of the adhesive base 8184 is connected to an external vacuum system, which makes the suction hole 8186 generate negative pressure. The suction hole 8186 of the adhesive base 8184 sucks the tape tightly. As the adhesive base driving device 8183 drives the adhesive base 8184 to move towards the battery, the adhesive base 8184 presses the tape onto the side end face of the battery and uses the brush 8187 to flatten both ends of the tape segment and press it onto the top and bottom surfaces of the battery, thus achieving adhesive fixation at the interface of the battery pack.

[0074] In this embodiment, both the adhesive positioning drive device 8181 and the adhesive base drive device 8183 are preferably configured as cylinders.

[0075] Reference Figure 15As shown, the glue-cutting assembly 817 includes a glue-cutting drive device 8171, a glue-cutting blade mounting plate 8172, and a glue-cutting blade 8173. The glue-cutting drive device 8171 is horizontally mounted on the top of the second drive device mounting bracket 8182. The glue-cutting blade mounting plate 8172 is located on the side of the glue-cutting drive device 8171 near the upper wrapping mechanism 5, and the glue-cutting blade mounting plate 8172 is connected and installed to the output end of the glue-cutting drive device 8171. The glue-cutting blade 8173 is mounted on the glue-cutting blade mounting plate 8172, and the blade of the glue-cutting blade 8173 faces the glue-cutting drive device 8171.

[0076] By adopting the above technical solution, the tape cutting drive device 8171 drives the tape cutting blade mounting plate 8172 and the tape cutting blade 8173 to move together towards the tape, so that the front end of the tape is placed inside the blade of the tape cutting blade 8173. After the tape pulling component 816 pulls out the tape of a predetermined length, the tape applying component 818 clamps the tape, and the tape pressing component 815 presses the tape, the tape cutting drive device 8171 pulls the tape cutting blade mounting plate 8172, which in turn drives the tape cutting blade 8173 to cut the tape. After the tape pulling component 816 releases the tape, the tape segment of the predetermined length is cut, thus achieving a firm tape fixation, flat and fixed-length tape segment cutting, high tape segment cutting efficiency, good tape segment cutting effect, and low tape segment cutting cost.

[0077] In this embodiment, the rubber cutting drive device 8171 is preferably configured as a cylinder.

[0078] Reference Figure 17 As shown, the adhesive application assembly 816 includes a clamping arm lifting drive device 8161, a fourth drive device mounting plate 8162, a clamping arm opening and closing drive device 8163, a first clamping arm 8164, and a second clamping arm 8165. The clamping arm lifting drive device 8161 is longitudinally mounted on the other side of the adhesive application stand plate 810. The fourth drive device mounting plate 8162 is located below the clamping arm lifting drive device 8161 and is connected to the output end of the clamping arm lifting drive device 8161. The clamping arm opening and closing drive device 8163 is laterally mounted on the fourth drive device mounting plate 8162. The first clamping arm 8164 and the second clamping arm 8165 are respectively mounted on the two output ends of the clamping arm opening and closing drive device 8163 and are used to clamp the adhesive tape.

[0079] By adopting the above technical solution, the clamping arm lifting drive device 8161 drives the fourth drive device mounting plate 8162, the clamping arm opening and closing drive device 8163, the first clamping arm 8164, and the second clamping arm 8165 to rise together into the blade of the cutting knife 8173 of the cutting assembly 817. The clamping arm opening and closing drive device 8163 drives the first clamping arm 8164 and the second clamping arm 8165 to close together to clamp the front end of the tape. The clamping arm lifting drive device 8161 drives the fourth drive device mounting plate 8162, the clamping arm opening and closing drive device 8163, the first clamping arm 8164, and the second clamping arm 8165 to descend together to pull out the tape of a predetermined length. The first clamping arm 8164 and the second clamping arm 8165 achieve stable clamping of the tape, realizing automatic pulling out of the tape of a predetermined length. Moreover, the length of the tape pulled out is accurate, avoiding the phenomenon of tape waste caused by pulling out too long or too short tape.

[0080] In this embodiment, the clamping arm lifting drive device 8161 is preferably a cylinder. The clamping arm opening and closing drive device 8163 is preferably a finger clamping cylinder.

[0081] Reference Figure 1 and Figure 14 As shown, the structure of the second coating mechanism 82 is mirror-symmetrical to the structure of the first coating mechanism 81. The first coating mechanism 81 and the second coating mechanism 82 respectively coat the two ends of the battery to fix the interface of the battery coating.

[0082] Reference Figures 1 to 17As shown, the working process of the battery wrapping machine is as follows: First, the wrapping film is placed on the wrapping positioning table 21, and the suction cup 25 firmly attaches the wrapping film to the wrapping positioning table 21. The battery is placed on one end of the wrapping film, thus wrapping the bottom surface of the battery. The side wrapping mechanism 3 folds the wrapping film on one side of the battery upward and attaches the wrapping film to one side of the battery to wrap one side of the battery. The first top folding assembly 41 and the second top folding assembly 42 respectively push the two ends of the wrapping film on one side of the battery to bend towards the upper surface of the battery, thus folding the wrapping film on one side of the battery laterally. The upper wrapping mechanism 5 presses the wrapping film above the battery and attaches it to the top surface of the battery. The upper wrapping mechanism 5 first pre-folds the film on both sides of the top of the battery. Then, the upper folding assembly 56 on the side end of the upper wrapping mechanism 5 folds the film on both sides of the top of the battery and presses it onto the two end faces of the battery. The lower folding assembly 6 on the side end pushes the film on both sides of the bottom of the battery and adheres it to the two end faces of the bottom of the battery, thus completing the wrapping of the two end faces of the battery. The lower folding and upper folding assembly 57 on the side end faces of the battery heat-melts and welds the film that has been folded down and up on both end faces of the battery to the two end faces of the battery. It automatically completes the wrapping and heat-melting welding of the top surface and two end faces of the battery. The bottom heat-melting welding assembly 7 heats the bottom surface of the battery. The film is heat-melted and welded to the bottom surface of the battery. This completes the fully automated heat-melting welding of the film on the top, both ends, and the bottom of the battery. Then, the first coating mechanism 81 and the second coating mechanism 82 respectively coat the two ends of the battery to fix the interface of the battery film, thus completing the film coating and gluing process. Its overall structural design enables fully automated processing of the battery on a single machine, including bottom coating, side coating, lateral folding of the side coating, pre-folding of the top coating, top coating, heat-melting welding of the film, and gluing of the coating interface, among other processing steps. It provides smooth film coating, precise folding, and high precision. It boasts advantages such as high coating efficiency, stable coating, high coating precision, and good coating effect. This reduces equipment size and costs, lowering battery processing costs. It effectively solves the problems of large crease errors, poor coating effect, and low yield rate associated with traditional manual methods of folding Mylar film and coating batteries. Furthermore, it addresses the issues of low coating efficiency, high processing costs, large equipment size, and high equipment costs associated with semi-automatic battery coating equipment that requires multiple processes involving different equipment to complete coating, hot-melt welding, and adhesive coating.

[0083] The above embodiments are merely examples of this utility model and are not intended to limit the implementation and scope of this utility model. All technical solutions that are the same as or equivalent to the contents described in the claims of this utility model should be included within the protection scope of this utility model.

Claims

1. A battery pack film applicator, comprising a frame, characterized in that: It also includes a film positioning assembly, a side film coating mechanism, a first top folding assembly, a second top folding assembly, an upper film coating mechanism, a side end lower folding assembly, a bottom hot melt welding assembly, a first adhesive coating mechanism, and a second adhesive coating mechanism. The film positioning assembly is mounted on the top of the frame and is used to support the film and battery. The side film coating mechanism is mounted inside the frame and is used to fold the film on the bottom side of the battery upwards and attach the film to the side of the battery. The first top folding assembly and the second top folding assembly are respectively mounted on the two sides of the film positioning assembly, and the first top folding assembly and the second top folding assembly together laterally push the film on one side of the battery towards the upper surface of the battery. The upper film coating mechanism is mounted on the frame and is used to fold the upper surface of the battery towards the upper surface of the battery. The outer film is attached to the top surface and two end faces of the battery, and the film interface of the battery after film coating is hot-melt welded. The side lower folding edge assembly is installed in the frame and located below the film positioning assembly. The side lower folding edge assembly attaches the film on both sides of the bottom of the battery to the two end faces of the battery. The bottom hot-melt welding assembly is installed in the frame and located below the film positioning assembly. The bottom hot-melt welding assembly is used to hot-melt the film on the bottom of the battery to weld it to the bottom of the battery. The bottom hot-melt welding assembly, the side lower folding edge assembly and the side film coating mechanism are arranged in sequence. The first coating mechanism and the second coating mechanism are respectively installed on both sides of the upper film coating mechanism and are used to coat the coated battery to fix the film interface.

2. The battery pack film applicator according to claim 1, characterized in that: The coating positioning assembly includes a coating positioning platform and a base plate. The coating positioning platform is mounted on the frame and is used to support the coating and the battery. The end of the coating positioning platform away from the side coating mechanism is integrally formed with an upward protrusion for lateral reference positioning of the battery. The end of the coating positioning platform near the side coating mechanism is recessed with at least one clearance groove. The base plate is mounted on the coating positioning platform and is located above at least one clearance groove. The top of the coating positioning platform is equipped with at least one suction cup for clamping the coating. The coating positioning platform is equipped with a vacuum connector for an external vacuum system.

3. The battery pack film applicator according to claim 1, characterized in that: The side coating mechanism includes a side coating horizontal moving component, a horizontal moving frame, a side folding component, and a side coating component. The side coating horizontal moving component is installed in the frame. The horizontal moving frame is installed in the frame by moving laterally through the side coating horizontal moving component. The side folding component is installed on one side of the horizontal moving frame near the side end lower folding component and is used to fold the coating on the bottom side of the battery upward. The side coating component is installed in the horizontal moving frame and is used to coat one side of the battery. The side folding assembly includes a push rod lifting drive device, a push rod mounting plate, and a push rod. The push rod lifting drive device is longitudinally mounted on one side of the horizontal moving frame near the side lower folding assembly. The push rod mounting plate is located above the push rod lifting drive device and is connected to the output end of the push rod lifting drive device. The push rod is mounted on the top of the push rod mounting plate and is used to fold the film on the bottom side of the battery upward. The side coating assembly includes a first drive device mounting frame, a mounting frame lifting drive device, a push seat lifting drive device, a first drive device mounting plate, a push seat translation drive device, and a push seat. At least one linear guide rail is longitudinally mounted on each of the two side walls within the frame. The first drive device mounting frame is lifted and moved within the frame via at least two linear guide rails. The mounting frame lifting drive device is longitudinally mounted within the translational frame and located below the first drive device mounting frame. The output end of the mounting frame lifting drive device is drive-connected to the first drive device mounting frame. The push seat lifting drive device is longitudinally mounted on the top of the first drive device mounting frame. The first drive device mounting plate is located above the push seat lifting drive device and is connected to the output end of the push seat lifting drive device. The push seat translation drive device is transversely mounted on the first drive device mounting plate. The push seat is mounted on the output end of the push seat translation drive device and is used to press and adhere the coating to one side of the battery.

4. The battery pack film applicator according to claim 2, characterized in that: The first top folding assembly includes a toggle positioning drive device, a second drive device mounting plate, a side toggle drive device, and a toggle. The toggle positioning drive device is horizontally mounted on the wrapping positioning platform. The second drive device mounting plate is mounted on the output end of the toggle positioning drive device. The side toggle drive device is mounted on the second drive device mounting plate. The toggle is mounted on the output end of the side toggle drive device and is used to horizontally push the wrapping on one side of the battery to bend towards the upper surface of the battery. The structure of the second top folding assembly is mirror-symmetrical to that of the first top folding assembly.

5. The battery pack film applicator according to claim 1, characterized in that: The upper coating mechanism includes an upper coating lateral movement component, an upper coating slide, an upper coating longitudinal movement component, an upper coating frame, an upper coating flattening component, a side-end upper folding component, and a side-end hot-melt welding component. The upper coating lateral movement component is mounted on the frame. The upper coating slide is driven by the upper coating lateral movement component, and the upper coating lateral movement component drives the upper coating slide to move laterally. The upper coating longitudinal movement component is mounted on the upper coating slide. The upper coating frame is driven by the upper coating longitudinal movement component, and the upper coating longitudinal movement component drives the upper coating frame to move up and down. The upper coating flattening component is mounted on the upper coating frame and is used to attach the coating on the upper surface of the battery to the top surface of the battery. The side-end upper folding component is mounted on the upper coating frame and is used to attach the coating on both sides of the top of the battery to the two end faces of the battery. The side-end hot-melt welding component is mounted on the upper coating frame and is used to hot-melt weld the coating on the top surface of the battery and the two end faces to the top surface and the two end faces of the battery, respectively. The upper film flattening assembly includes at least two connecting columns, a buffer plate, at least two spring guide rod assemblies, an upper pressure plate, a first side pressure plate, and a second side pressure plate. At least two connecting columns are longitudinally installed at the bottom of the upper film frame. The buffer plate is connected to the upper film frame through at least two connecting columns. At least two spring guide rod assemblies are longitudinally installed at the bottom of the buffer plate. The upper pressure plate is connected to the buffer plate through at least two spring guide rod assemblies. The first side pressure plate and the second side pressure plate are respectively installed on both ends of the upper pressure plate. The bottom of the first side pressure plate and the second side pressure plate are respectively provided with inclined surfaces for folding the film on both sides of the top of the battery, and the inclined surfaces of the first side pressure plate and the second side pressure plate are arranged opposite to each other. The side-end upper folding assembly includes a third drive device mounting plate, an upper folding plate lifting drive device, an upper folding plate mounting plate, and two upper folding plates. The third drive device mounting plate is mounted on the upper wrapping frame. The upper folding plate lifting drive device is longitudinally mounted at the bottom of the upper third drive device mounting plate. The upper folding plate mounting plate is mounted below the upper folding plate lifting drive device and is connected to the output end of the upper folding plate lifting drive device. The two upper folding plates are respectively mounted on the two ends of the upper folding plate mounting plate and are respectively located on both sides of the upper pressure plate. The side-end hot-melt welding assembly includes a welding assembly lifting drive device, a welding lifting frame, a welding assembly lateral movement drive device, a first welding assembly mounting plate, at least one upper welding assembly, a first clamping arm, a second clamping arm, a first side welding assembly, and a second side welding assembly. The welding assembly lifting drive device is installed at the bottom of the third drive device mounting plate. The welding lifting frame is installed below the welding assembly lifting drive device and is connected to the output end of the welding assembly lifting drive device. The first welding assembly mounting plate is installed at the bottom of the welding lifting frame. At least one upper welding assembly is installed at the bottom of the first welding assembly mounting plate and is used to hot-melt the film on the top surface of the battery to weld it to the top surface of the battery. The welding assembly transverse drive device is installed inside the welding lifting frame. The first clamping arm and the second clamping arm are located below the welding assembly transverse drive device, and the first clamping arm and the second clamping arm are respectively installed on the two output ends of the welding assembly transverse drive device. The first side welding assembly and the second side welding assembly are respectively installed on the two opposite sides of the first clamping arm and the second clamping arm. The first side welding assembly and the second side welding assembly are respectively used to heat melt and weld the film after the downward folding and upward folding on the two end faces of the battery to the two end faces of the battery. The upper welding assembly includes a heat insulation support, a heating strip, and two heating strip mounting blocks. The bottom of the heat insulation support extends downward and is integrally formed with a mounting part. The heating strip is mounted on the mounting part of the heat insulation support and is used to heat melt the coating. The two heating strip mounting blocks are respectively mounted on two sides of the heat insulation support and are used to fix the two ends of the heating strip on the two sides of the mounting part. The structures of the first side welding assembly and the second side welding assembly are the same as those of the upper welding assembly.

6. The battery pack film applicator according to claim 1, characterized in that: The side-end folding edge assembly includes a folding edge support plate, a folding edge plate lifting drive device, and a folding edge plate mounting plate. The folding edge support plate is installed inside the frame. The folding edge plate lifting drive device is longitudinally installed on the folding edge support plate. The folding edge plate mounting plate is located above the folding edge plate lifting drive device and is connected to the output end of the folding edge plate lifting drive device. Positioning blocks are installed on both ends of the folding edge plate mounting plate, and each positioning block is equipped with a folding edge plate for folding the film on both sides of the bottom of the battery upwards.

7. The battery pack film applicator according to claim 5, characterized in that: The bottom hot-melt welding assembly includes a lower welding base frame, a heating strip lifting device, a column frame, a second welding assembly mounting plate, and at least one lower welding assembly. The lower welding base frame is installed inside the frame, the heating strip lifting device is longitudinally installed on the lower welding base frame, the column frame is installed above the heating strip lifting device, and the column frame is connected to the output end of the heating strip lifting device. The second welding assembly mounting plate is installed on the top of the column frame, and at least one lower welding assembly is installed on the second welding assembly mounting plate and is used to hot-melt and weld the film at the bottom of the battery to the bottom of the battery.

8. The battery pack film applicator according to claim 5, characterized in that: The first tape coating mechanism includes a tape coating stand, an unwinding roller, a first conveyor roller, a second conveyor roller, a third conveyor roller, a tape pressing assembly, a tape pulling assembly, a tape cutting assembly, and a tape applying assembly. The tape coating stand is mounted on one side of the upper film coating frame. The unwinding roller is mounted on one side of the tape coating stand and is used to unwind the tape. The first, second, and third conveyor rollers are respectively mounted on the same side of the tape coating stand and are used to convey the tape. The tape pressing assembly is mounted on the same side of the tape coating stand and is used to press the tape onto the second and third conveyor rollers. The tape pulling assembly is mounted on the other side of the tape coating stand and is used to pull out a predetermined length of tape. The tape cutting assembly is mounted on the same side of the tape coating stand and is located between the tape pressing assembly and the tape pulling assembly. The tape applying assembly is mounted on the same side of the tape coating stand and is located between the tape cutting assembly and the tape pulling assembly. The adhesive pressing assembly includes an adhesive pressing drive device and an adhesive pressing base. The adhesive pressing drive device is mounted on the adhesive application plate, and the adhesive pressing base is mounted on the output end of the adhesive pressing drive device. The adhesive application assembly includes an adhesive application mounting plate, an adhesive application positioning drive device, a second drive device mounting frame, an adhesive application seat drive device, and an adhesive application seat. The adhesive application vertical plate is mounted on the adhesive application mounting plate, the adhesive application positioning drive device is mounted horizontally on the adhesive application mounting plate, the second drive device mounting frame is mounted on the output end of the adhesive application positioning drive device, the adhesive application seat drive device is mounted horizontally on the second drive device mounting frame, and the adhesive application seat is located on the side of the adhesive application seat drive device near the upper wrapping mechanism, and the adhesive application seat is connected to the output end of the adhesive application seat drive device. The side of the adhesive application seat facing the upper wrapping mechanism is recessed with an adhesive application groove, and the side of the adhesive application seat facing the upper wrapping mechanism is also provided with suction holes for tightening the adhesive tape. The two opposite side walls inside the adhesive application groove are respectively equipped with brushes for smoothing the adhesive tape and adhering it to the wrapping film on the top and bottom of the battery. The cutting assembly includes a cutting drive device, a cutting blade mounting plate, and a cutting blade. The cutting drive device is horizontally mounted on the top of the second drive device mounting frame. The cutting blade mounting plate is located on the side of the cutting drive device near the upper wrapping mechanism, and the cutting blade mounting plate is connected to the output end of the cutting drive device. The cutting blade is mounted on the cutting blade mounting plate with the blade facing the cutting drive device. The adhesive application assembly includes a clamping arm lifting drive, a fourth drive mounting plate, a clamping arm opening and closing drive, a first clamping arm, and a second clamping arm. The clamping arm lifting drive is longitudinally mounted on the other side of the adhesive application stand. The fourth drive mounting plate is located below the clamping arm lifting drive and is connected to the output end of the clamping arm lifting drive. The clamping arm opening and closing drive is laterally mounted on the fourth drive mounting plate. The first and second clamping arms are respectively mounted on the two output ends of the clamping arm opening and closing drive and are used to clamp the adhesive tape.

9. The battery pack film applicator according to claim 8, characterized in that: The structure of the second coating mechanism is mirror-symmetrical to that of the first coating mechanism. The first coating mechanism and the second coating mechanism respectively coat the two ends of the battery to fix the interface of the battery coating.

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