Battery cell packaging equipment and process thereof

Abstract

The invention discloses battery cell packaging equipment and a process thereof, and relates to the technical field of battery cell packaging, the battery cell packaging equipment comprises a packaging machine table, a conduction table is arranged in the middle of the packaging machine table, and a feeding mechanism and a discharging mechanism are arranged on one side of the packaging machine table, a first pressing assembly, a packaging clamp, a turnover power assembly, a flattening assembly, a second pressing assembly, a top packaging mechanism, a side edge packaging mechanism and a third pressing assembly are sequentially arranged in the conveying direction from the feeding mechanism to the discharging mechanism. The feeding mechanism, the conduction table, the turnover power assembly, the flattening assembly, the top packaging mechanism, the side edge packaging mechanism and the discharging mechanism form a square conveying route. The multiple sets of packaging clamps are sequentially arranged in the conveying direction, and circulating conveying is formed on a square conveying line. The number of packaging clamps is reduced, the equipment cost is reduced, the space utilization rate is improved, and the production cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery cell packaging, and in particular to a battery cell packaging device and a process thereof. Background Art

[0002] With the rapid development of science and technology, the importance of battery soft pack technology in the field of battery cell packaging has become increasingly prominent, and has been widely penetrated into many cutting-edge industries such as consumer electronics, electric vehicles and drones. This technology, with its unique advantages, is gradually shaking the dominance of traditional cylindrical or square hard shell batteries.

[0003] Specifically, soft-pack batteries can provide significantly higher energy density, so that in the same volume, the energy they store far exceeds that of hard-shell batteries, which is undoubtedly very attractive for electronic products that pursue lightness and long battery life. In addition, soft-pack batteries show extremely high flexibility in appearance design, and can easily adapt to various complex and changing product requirements, greatly broadening the application scenarios of batteries. More importantly, soft-pack batteries are lighter in weight. Compared with hard-shell batteries, they can bring significant weight reduction effects to devices, which is of great significance for improving portability and extending the use time of devices.

[0004] However, despite the many advantages of soft-pack batteries, their consistency issues have always plagued the industry. The existence of this problem undoubtedly has a certain impact on the performance and stability of the battery. With the continuous improvement of manufacturing technology and the continuous advancement of large-scale production, the production method of soft-pack batteries is gradually transforming from traditional manual operation to mechanical automation production, which can undoubtedly improve the consistency problem of soft-pack batteries.

[0005] Although there are many fully automatic soft-pack lithium-ion battery packaging equipment on the market, these equipment have greatly improved production efficiency and realized the automation of the production process. However, the existing fully automatic soft-pack lithium-ion battery packaging equipment is generally complex in structure, resulting in high manufacturing costs. At the same time, the complex structure also increases the difficulty and cost of later maintenance.

[0006] Therefore, how to further simplify the structure of packaging equipment while ensuring high efficiency and stable production to facilitate later maintenance and reduce equipment costs has become a key technical issue that needs to be solved urgently. Summary of the invention

[0007] The object of the present invention is to provide a battery cell packaging device and a process thereof. By setting a U-shaped conductive structure, the discharge, folding and heat sealing in the battery cell soft package packaging process are combined in a local space, and the folding structure is combined in the packaging fixture, so that the packaging fixture can realize the folding function, thereby solving the problem that the packaging equipment is generally complex in structure, resulting in high manufacturing cost of the equipment. At the same time, the complex structure also increases the difficulty and cost of subsequent maintenance.

[0008] The purpose of the present invention can be achieved through the following technical solutions:

[0009] A battery cell packaging device comprises a packaging machine, a conducting table is arranged in the middle of the packaging machine, a loading mechanism and a unloading mechanism are arranged on one side of the packaging machine for receiving upper and lower processes, and a pressing component 1, a packaging fixture, a folding power component, a flattening component, a pressing component 2, a top packaging mechanism, a side packaging mechanism and a pressing component 3 are arranged in sequence in the conveying direction from the loading mechanism to the unloading mechanism;

[0010] The U-shaped conveying route is composed of a loading mechanism, a conducting platform, a folding power assembly, a flattening assembly, a top packaging mechanism, a side packaging mechanism and a unloading mechanism;

[0011] There are multiple groups of packaging fixtures, which are arranged in sequence along the conveying direction to form a circular conveying on a U-shaped conveying route.

[0012] As a further solution of the present invention: two groups of linear modules 2 and two groups of linear modules 3 are symmetrically arranged on the top surface of the packaging machine and around the four sides of the conduction table. Both groups of linear modules 2 are provided with splicing guide rails, which cooperate with the conduction table to form a U-shaped conduction structure that can conduct cyclically.

[0013] As a further solution of the present invention: the packaging fixture includes a carrying plate, a folding plate is rotatably arranged on one side of the carrying plate, a plurality of groups of positioning clamps are symmetrically arranged on the carrying plate, and a folding structure is arranged between the carrying plate and the folding plate.

[0014] As a further solution of the present invention: the folding structure includes a connecting platform connected to one side of the bottom of the supporting plate, a sliding block on the top surface of the connecting platform is connected to a tooth plate, an outer side of the tooth plate is connected to a positioning block, the folding plate is rotatably connected to the supporting plate via a rotating shaft, a rotating shaft close to one side of the tooth plate is connected to a folding gear, and the folding gear is meshingly connected to the tooth plate.

[0015] As a further solution of the present invention: a second movable limit block is further provided on one side of the bottom of the load-bearing plate, and a first movable limit block is provided on the other side of the bottom of the load-bearing plate.

[0016] As a further solution of the present invention: the folding power assembly includes a lifting cylinder, the telescopic rod of the lifting cylinder is connected to the folding drive cylinder, the folding drive cylinder is connected to the positioning seat, the leveling assembly includes a fixed table, the top of the fixed table is connected to an adjusting cylinder three, the top of the adjusting cylinder three is connected to a rotating cylinder two, and a leveling strip is arranged on the rotating cylinder two.

[0017] As a further solution of the present invention: the top packaging mechanism includes a fixed frame, a downward pressure cylinder is installed on the top of the fixed frame, a sliding base is slidably installed on the side of the fixed frame, an upper heat sealing table is installed at the bottom of the sliding base, the bottom of the fixed frame is connected to a connecting frame, the bottom of the connecting frame is connected to an upper cylinder, a sliding base is slidably arranged on the connecting frame, and a lower heat sealing table is installed on the top of the sliding base.

[0018] As a further solution of the present invention: the side packaging mechanism includes an installation main frame, a mounting bracket is installed on the top of the installation main frame, a downward pressure cylinder 2 is installed on the top of the installation bracket, the telescopic rod of the downward pressure cylinder 2 is connected to a moving base, and upper heat sealing tables 2 are symmetrically arranged on both sides of the bottom surface of the moving base, and upper push cylinder 2 is connected to the bottom plate of the installation main frame, the telescopic rod of the upper push cylinder 2 passes through the bottom plate of the installation main frame and is connected to a pushing platform, and lower heat sealing tables 2 are symmetrically arranged on both sides of the top surface of the pushing platform.

[0019] As a further solution of the present invention: the leveling component is the second leveling mechanism, the second leveling mechanism includes a leveling guide rail, a moving seat is installed on the leveling guide rail, a transverse cylinder is arranged on one side of the packaging machine, the telescopic rod of the transverse cylinder is connected to the moving seat, an adjusting cylinder four is arranged on the top of the moving seat, a rotating cylinder three is arranged on the top of the adjusting cylinder four, and a leveling plate is arranged on the rotating seat of the rotating cylinder three.

[0020] As a further solution of the present invention: a battery cell packaging process, characterized in that the packaging is performed using the above-mentioned battery cell packaging equipment:

[0021] The process includes the following steps:

[0022] Step 1: Loading: The aluminum-plastic film after the die punching in the previous process is adsorbed by the loading mechanism, and then moved to the top of the packaging fixture at the loading station;

[0023] Step 2, unloading and folding: After loading, start the linear module 3 near the feeding mechanism to drive the packaging fixture to move, move the packaging fixture of the transfer station to the folding station, move the packaging fixture of the feeding station to the transfer station, move the packaging fixture to the folding station, put the roll core in the aluminum-plastic film punching hole, and fold and flatten it;

[0024] Step 3: Top heat sealing: After folding and clamping, start the linear module 2 close to the folding station to drive the packaging fixture to move to the top heat sealing station for top heat sealing;

[0025] Step 4: Side heat sealing: After the top is heat sealed, the linear module 3 close to the unloading mechanism is started to drive the packaging fixture to move to the side heat sealing station for side heat sealing;

[0026] Step 5, unloading: After heat sealing, the linear module 3 close to the unloading mechanism is moved to the unloading station. The unloading mechanism drives the vacuum adsorption head to adsorb the packaged battery cells and transfer them to the next process. The empty packaging fixture is moved to the loading station through the linear module 2 close to the unloading station to form a cycle.

[0027] Beneficial effects of the present invention:

[0028] The present invention sets a U-shaped conductive structure, uses a feeding mechanism to feed the aluminum-plastic film after punching the pits, then the packaging fixture carries and transports it along the U-shaped route, places a roll core at the folding station, folds the aluminum-plastic film and flattens it, then heat-seals the top at the top heat-sealing station, heat-seals both sides at the side heat-sealing station, and then transports it to the lower section for cutting through the unloading mechanism. The U-shaped conductive structure connects multiple processes in series in a local area, so that each process is more closely combined, the processing efficiency is higher, and the space occupied by the equipment is saved, so that the space utilization rate is further improved, and the cost is saved; and the packaging fixture is circulated through the U-shaped conductive structure. The use of the ring can further save the number of packaging fixtures and reduce the equipment cost; and by combining the folding structure in the packaging fixture, the packaging fixture can realize both clamping and transportation and folding, which simplifies the overall equipment structure, saves the folding equipment in the entire soft packaging process, and saves equipment cost; and the folding structure is combined with the packaging fixture, which makes the update and maintenance cost lower. When maintenance is required, only the packaging fixture needs to be replaced, which is low in cost and does not require shutdown for repairs, further reducing the cost of repair and maintenance. Moreover, replacement maintenance allows production and maintenance to be carried out at the same time, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The present invention will be further described below in conjunction with the accompanying drawings.

[0030] Figure 1 The overall structure of the present invention is shown in FIG. Figure 1 ;

[0031] Figure 2 The overall structure of the present invention is shown in FIG. Figure 2 ;

[0032] Figure 3 It is a schematic diagram of the structure of the feeding mechanism of the present invention;

[0033] Figure 4 It is a structural schematic diagram of a pressing component of the present invention;

[0034] Figure 5It is a schematic diagram of the structure of the conduction platform of the present invention;

[0035] Figure 6 It is a schematic diagram of the arrangement positions of the linear module 2 and the linear module 3 of the present invention;

[0036] Figure 7 yes Figure 6 A schematic diagram of the enlarged structure of the middle A area;

[0037] Figure 8 This is a schematic diagram of the conveying direction of the first embodiment of the present invention;

[0038] Fig. 9 The packaging fixture structure of the present invention is schematically shown in FIG. Figure 1 ;

[0039] Fig.10 The packaging fixture structure of the present invention is schematically shown in FIG. Figure 2 ;

[0040] Fig.11 It is a schematic diagram of the structure of the bearing plate of the present invention;

[0041] Fig.12 It is a schematic diagram of the bottom surface structure of the load-bearing plate of the present invention;

[0042] Fig.13 It is a schematic diagram of the structure of the folding power assembly of the present invention;

[0043] Fig.14 It is a schematic diagram of the structure of the leveling component in the first embodiment of the present invention;

[0044] Fig.15 It is a schematic diagram of the top packaging mechanism structure of the present invention;

[0045] Fig.16 It is a schematic diagram of the structure of the side packaging mechanism of the present invention;

[0046] Fig.17 It is a schematic diagram of the position structure of the side packaging mechanism of the present invention;

[0047] Fig.18 yes Fig.17 The enlarged structural diagram at B in the middle;

[0048] Fig.19 It is a schematic diagram of the structure of the second leveling mechanism in the third embodiment of the present invention;

[0049] Fig. 20 It is a schematic diagram of the structure of the level running trough in the fourth embodiment of the present invention.

[0050] In the figure: 1. Packaging machine; 2. Feeding mechanism; 21. Mounting frame 1; 22. Linear module 1; 23. Moving seat; 24. Moving cylinder; 25. Fixed base; 26. Rotating cylinder 1; 27. Connecting bracket; 3. Pressing assembly 1; 31. Mounting frame 2; 32. Pressing cylinder; 33. Horizontal plate; 34. Pressing rod 1; 35. Pressing rod 2; 4. Conducting table; 41. Conducting table body; 42. Mounting slot; 43. Moving guide rail; 5. Packaging fixture; 51. Carrying plate; 52, folding plate; 521, matching groove; 522, flat running groove; 53, positioning clamp; 54, connecting platform; 55, tooth plate; 56, positioning block; 57, folding gear; 58, moving limit block 1; 59, moving limit block 2; 510, slider; 511, bearing groove; 512, heat sealing matching groove; 513, folding limit groove; 6, folding power assembly; 61, lifting cylinder; 62, folding drive cylinder; 63, positioning seat; 7, flat assembly; 71, fixed platform; 72 , regulating cylinder three; 73, rotating cylinder two; 74, flattening strip; 8, top packaging mechanism; 81, fixed frame; 82, pressing cylinder one; 83, sliding base one; 84, upper heat sealing table one; 85, upper cylinder one; 86, sliding base two; 87, lower heat sealing table one; 9, side packaging mechanism; 91, installing main frame; 92, installing bracket; 93, pressing cylinder two; 94, moving base; 95, upper heat sealing table two; 96, upper cylinder two; 97, push table; 98, lower heat sealing Table 2; 10. Pressing assembly 2; 11. Linear module 2; 111. Adjusting cylinder 1; 12. Linear module 3; 121. Adjusting cylinder 2; 122. Electromagnet; 13. Splicing plate; 14. Splicing guide rail; 20. Unloading mechanism; 30. Pressing assembly 3; 100. Second leveling mechanism; 101. Leveling guide rail; 102. Moving seat; 103. Transverse cylinder; 104. Adjusting cylinder 4; 105. Rotating cylinder 3; 106. Leveling plate; 522. Leveling running groove. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] The present invention Figure 1-Figure 20As shown, a battery cell packaging device is provided. By setting a U-shaped conductive structure, the discharge, folding and heat sealing in the cell soft package packaging process are combined in a local space, which saves the space occupied by the long production line, improves the space utilization rate, and saves the production cost; and the packaging fixture 5 is recycled through the U-shaped conductive structure, which further saves the number of packaging fixtures 5 and reduces the equipment cost; and also by combining the folding structure in the packaging fixture 5, the packaging fixture 5 can realize the folding function, saving the folding mechanism, simplifying the production line, facilitating the later maintenance, and reducing the equipment cost.

[0053] Embodiment 1

[0054] like Figure 1-Figure 18 As shown, the present embodiment provides a battery cell packaging device, which is applied in the battery soft pack technology, wherein the battery cell packaging device includes a packaging machine 1 arranged on a production line, a loading mechanism 2 and a unloading mechanism 20 are arranged on the side of the packaging machine 1 that receives the upper and lower processes, a conducting table 4 is arranged in the middle of the top surface of the packaging machine 1, a pressing component 1 3 is arranged on the side of the conducting table 4 close to the loading mechanism 2, and a pressing component 3 30 is arranged on the side of the conducting table 4 close to the unloading mechanism 20, and a pressing component 3 30 is arranged along the conducting table 4 A plurality of packaging fixtures 5 are arranged in sequence along the U-shaped route from the loading mechanism 2 to the unloading mechanism 20 for continuous cyclic use. A folding power assembly 6, a flattening assembly 7 and a pressing assembly 10 are arranged on the top surface of the packaging machine 1 away from the loading mechanism 2, wherein the folding power assembly 6 and the flattening assembly 7 are located at the inner and outer ends of the same side. A top packaging mechanism 8 is arranged on the top surface of the packaging machine 1 away from the unloading mechanism 20, and a side packaging mechanism 9 is arranged in the middle of the conduction route from the top packaging mechanism 8 to the unloading mechanism 20.

[0055] It should be specifically explained that the battery cell packaging equipment is provided with six stations on the packaging machine 1, namely, a loading station, a conduction station, a folding station, a top heat sealing station, a side heat sealing station and a discharging station;

[0056] The loading station is located near the end of the loading mechanism 2; the conduction station is located in the middle of the conduction platform 4 near the side of the loading mechanism 2; the folding station is located near the folding power component 6 and the flattening component 7; the top heat sealing station is located near the top packaging mechanism 8; the side heat sealing station is located inside the side packaging mechanism 9; and the discharging station is located near the end of the unloading mechanism 20. Figure 2 shown.

[0057] The distances from the loading station to the conduction station and from the conduction station to the folding station are equal, the distances from the top heat sealing station to the side heat sealing station and from the side heat sealing station to the discharging station are equal, and the distances from the discharging station to the loading station and from the folding station to the top heat sealing station are equal.

[0058] Furthermore, if Figure 6 As shown, two groups of linear modules 2 11 and two groups of linear modules 3 12 are symmetrically arranged on the top surface of the packaging machine 1 and around the four sides of the conduction table 4, wherein the two groups of linear modules 2 11 are symmetrically arranged on one side of the width direction of the conduction table 4, and the two groups of linear modules 3 12 are symmetrically arranged on one side of the length direction of the conduction table 4. Both groups of linear modules 2 11 are provided with splicing guide rails 14, which cooperate with the conduction table 4 to form a U-shaped conduction structure that can conduct cyclically.

[0059] The aluminum-plastic film after punching is loaded through the loading mechanism 2, and then the packaging fixture 5 carries and transports it along the U-shaped route, the roll core is placed at the folding station, the aluminum-plastic film is folded and flattened, and then the top is heat-sealed at the top heat-sealing station, and the two sides are heat-sealed at the side heat-sealing station, and then it is transported to the lower section for cutting through the unloading mechanism 20. The U-shaped conduction structure connects multiple processes in series in a local area, so that each process is more closely combined, the processing efficiency is higher (saving the transmission distance), and the space occupied by the equipment is saved, so that the space utilization rate is further improved and the cost is saved.

[0060] Specific as Figure 3 As shown, the above-mentioned feeding mechanism 2 includes a mounting frame 21 fixed on the top surface of the packaging machine 1, and a linear module 22 is arranged on the top of the mounting frame 21. A moving seat 23 is connected to the slider of the linear module 22, and a moving cylinder 24 is arranged on the top of the moving seat 23. The outer side of the moving seat 23 is slidably connected to a fixed base 25 through a guide rail. The telescopic rod of the moving cylinder 24 is connected to the fixed base 25, and the fixed base 25 is driven by the moving cylinder 24 to slide vertically on the moving seat 23. A rotating cylinder 26 is installed on the fixed base 25, and a connecting bracket 27 is installed on the rotating axis of the rotating cylinder 26. A plurality of groups of vacuum adsorption heads (not shown in the figure) are installed on the connecting bracket 27. The aluminum-plastic film after punching is adsorbed by the plurality of vacuum adsorption heads, and then placed on the packaging fixture 5 for further transmission.

[0061] The unloading mechanism 20 has the same structure as the loading mechanism 2, and realizes the function of adsorption unloading.

[0062] By setting a rotating cylinder 26, multiple groups of vacuum adsorption heads can be driven to flexibly deflect, adsorb aluminum-plastic films at different positions and angles, and can also perform a turning operation on the aluminum-plastic film.

[0063] Furthermore, if Figure 4 As shown, the above-mentioned pressing component 1 3 includes a mounting frame 2 31, a pressing cylinder 32 is fixed on the outer side of the mounting frame 2 31, a cross plate 33 is connected to the top of the pressing cylinder 32, and a pressing rod 1 34 and a pressing rod 2 35 are respectively installed on both sides of the cross plate 33, wherein the lower side surface of the middle part of the pressing rod 2 35 is provided with a concave avoidance structure to avoid interference with the packaging fixture 5 and affect the pressing process.

[0064] Furthermore, if Figure 5 As shown, the above-mentioned conduction table 4 includes a conduction table body 41 arranged in the middle of the top surface of the packaging machine 1, and the top surfaces of the conduction table body 41 are symmetrically provided with motion guide rails 43 on both sides, and one side of the conduction table body 41 is also provided with a mounting groove 42 for cooperating with the side packaging mechanism 9 to avoid mutual interference between the two, and the mounting groove 42 is arranged through the motion guide rail 43 on the same side to avoid interruption of the motion guide rail 43; the motion guide rails 43 on both sides cooperate with the corresponding splicing guide rails 14 to form a U-shaped transmission route, so that only a small number of packaging fixtures 5 are required to form a stable and continuous transmission, saving the number of packaging fixtures 5 and reducing costs.

[0065] Furthermore, the details are as follows Figure 6 and Figure 7 As shown, an adjusting cylinder 111 is installed on the slider of the above-mentioned linear module 2 11, and the telescopic rod of the adjusting cylinder 111 is connected to the splicing plate 13, and a splicing guide rail 14 is arranged on the top surface of the splicing plate 13, and the splicing guide rail 14 is adapted to the moving guide rail 43 and can be fitted together to form an extended moving guide rail 43, and the splicing guide rails 14 on both sides can be spliced ​​with the moving guide rail 43 to allow the packaging fixture 5 to be transmitted in a cycle; and a long plate is arranged on the slider of the above-mentioned linear module 3 12, and adjusting cylinders 2 121 are symmetrically arranged at both ends of the top surface of the long plate, and the telescopic rod of the adjusting cylinder 121 is connected to the electromagnet 122, and the top surface of the electromagnet 122 is provided with an adsorption groove for cooperating with the packaging fixture 5 to realize the lateral transmission process of the packaging fixture 5 (along the direction of the moving guide rail 43).

[0066] Specific as Figure 8 As shown, the packaging fixture 5 at the unloading station is transported to the loading station through the linear module 2 11 on one side, and the packaging fixture 5 at the flipping station is transported to the top heat sealing station through the linear module 2 11 on the other side. Then, the two groups of packaging fixtures 5 are synchronously moved to the next station through the linear module 3 12. The side close to the loading mechanism 2 moves to the folding station, and the side close to the unloading mechanism 20 moves to the unloading station. Then a cycle is formed. This embodiment takes the cycle of four groups of packaging fixtures 5 as an example.

[0067] It needs to be further explained that the linear module 1 22, the linear module 2 11 and the linear module 3 12 in this embodiment are structures capable of linear motion in the prior art, and will not be described in detail here.

[0068] Furthermore, if Figure 9-12As shown, the above-mentioned packaging fixture 5 includes a carrying plate 51, and a folding plate 52 is rotatably arranged at the rear of the carrying plate 51, and the folding plate 52 can be folded to achieve folding of the aluminum-plastic film. A plurality of positioning clamps 53 are symmetrically arranged on both sides of the head of the carrying plate 51 for clamping the aluminum-plastic film after unloading or folding. A folding structure is arranged between the carrying plate 51 and the folding plate 52, and the folding structure includes a connecting platform 54 connected to one side of the bottom of the carrying plate 51, and a tooth plate 55 is connected to the slider on the top surface of the connecting platform 54 through a track, and a downward positioning block 56 is connected to the outer side of the tooth plate 55, and the folding plate 52 is rotatably connected to the carrying plate 51 through a rotating shaft, and a folding gear 57 is connected to the rotating shaft close to one side of the tooth plate 55, and the folding gear 57 is meshed and connected with the tooth plate 55, and the movement of the tooth plate 55 drives the folding gear 57 to rotate, thereby driving the folding plate 52 to flip around the rotating shaft to achieve folding of the aluminum-plastic film.

[0069] It should be further explained that in this embodiment, the multiple groups of positioning clamps 53 cooperate with the above-mentioned pressing assembly 1 3, and the pressing cylinder 32 drives the pressing rod 1 34 and the pressing rod 2 35 to press or release the positioning clamps 53 on both sides, thereby clamping or releasing the aluminum-plastic film.

[0070] Similarly, in this embodiment, the structure of the pressing component three 30 is completely consistent with that of the pressing component one 3, wherein the main difference between the pressing component two 10 and the pressing component one 3 is that the pressing rod two 35 is a straight rod and is not provided with a concave avoidance structure, while the other structures are completely consistent.

[0071] By providing a folding structure in the packaging fixture 5, the packaging fixture 5 can be used for both clamping and transportation and folding, which simplifies the overall equipment structure, saves the folding equipment in the entire soft packaging process, and saves equipment costs; and the folding structure is combined in the packaging fixture 5, so that the update and maintenance costs are lower. When maintenance is required, only the packaging fixture 5 needs to be replaced, which is low in cost and does not require shutdown for repairs, further reducing the cost of repairs and maintenance. Replacement-type maintenance allows production and maintenance to be carried out simultaneously, thereby improving production efficiency.

[0072] More specifically, if Fig.10 and Fig.11 As shown, a bearing groove 511 is provided on the top of the above-mentioned bearing plate 51, which is used to cooperate with the aluminum-plastic film after punching. Heat-sealing matching grooves 512 are provided on both sides of the bearing groove 511, which are used to cooperate with the side packaging mechanism 9 to perform side heat sealing. A folding limit groove 513 is provided on the top surface of the rear end of the bearing plate 51, and the folding plate 52 is installed in the above-mentioned folding limit groove 513. The folding limit groove 513 limits the folding plate 52 to limit the folding direction of the folding plate 52, and the folding plate 52 is also provided with a matching groove 521 corresponding to the heat-sealing matching groove 512 for matching, so that the side packaging mechanism 9 can fully package the side of the battery cell.

[0073] Specifically, Fig.12 As shown, a movable limit block 2 59 is also provided on one side of the bottom of the above-mentioned supporting plate 51, and a movable limit block 1 58 is provided on the other side of the bottom. The movable limit block 1 58 and the movable limit block 2 59 are adsorbed with the corresponding electromagnet 122 to realize the transmission of the packaging fixture 5. A slider 510 is also provided on the bottom surface of the supporting plate 51, and the supporting plate 51 slides on the moving guide rail 43 or the splicing guide rail 14 through the slider 510.

[0074] Furthermore, if Fig.13 As shown, the above-mentioned folding power assembly 6 includes a lifting cylinder 61 installed on the top surface of the packaging machine 1, the telescopic rod of the lifting cylinder 61 is connected to the folding driving cylinder 62, the telescopic rod of the folding driving cylinder 62 is connected to the moving plate, and the positioning seat 63 is connected to the top of the moving plate. When the packaging fixture 5 moves to the folding station, the positioning block 56 corresponds to the positioning seat 63, and the lifting cylinder 61 is started to drive the positioning seat 63 to plug with the positioning block 56. After the plugging, the folding driving cylinder 62 is started to drive the positioning seat 63 to move, and the positioning seat 63 drives the positioning block 56 to move, and then the positioning block 56 drives the tooth plate 55 to move, the tooth plate 55 drives the folding gear 57, and the folding gear 57 drives the folding plate 52 to fold, thereby realizing the folding action.

[0075] The folding process during the clamping and transportation process is realized by cooperating with the folding structure in the packaging fixture 5 through the folding power assembly 6. The operation is convenient, the structure is simple, and the cost of the folding equipment is saved.

[0076] Furthermore, if Fig.14 As shown, the above-mentioned leveling component 7 includes a fixed platform 71 located outside the lifting cylinder 61, the top of the fixed platform 71 is connected to an adjusting cylinder three 72, the top of the telescopic rod of the adjusting cylinder three 72 is connected to a rotating cylinder two 73, the rotating shaft of the rotating cylinder two 73 is connected to a rotating seat, and a leveling bar 74 is installed on the rotating seat. After folding, the adjusting cylinder three 72 is started to drive the leveling bar 74 to rise, and then the rotating cylinder two 73 drives the leveling bar 74 to rotate to be perpendicular to the length direction of the packaging fixture 5, and then the adjusting cylinder three 72 is started to drive the leveling bar 74 to descend, so that the folded aluminum-plastic film is leveled on the upper surface of the roll core to form an upper cover, and when folding, the positioning clamp 53 is pressed by the pressing component two 10. After leveling, the positioning clamp 53 is released to clamp the two ends of the folded aluminum-plastic film.

[0077] By providing the flattening component 7, the folded aluminum-plastic film can be well attached to the upper surface of the winding core, which makes the packaging more compact and ensures the stability of the subsequent heat sealing of the battery cell.

[0078] Furthermore, if Fig.15As shown, the above-mentioned top packaging mechanism 8 includes a fixed frame 81 installed on the packaging machine 1, a downward pressure cylinder 82 is installed on the top of the fixed frame 81, a sliding base 83 is slidably installed on the side of the fixed frame 81, the top of the sliding base 83 is connected to the downward pressure cylinder 82, an upper heat sealing table 84 is installed at the bottom of the sliding base 83, and a through hole is opened at the corresponding position of the packaging machine 1, a connecting frame is connected to the bottom of the fixed frame 81, the connecting frame is arranged through the through hole, an upper cylinder 85 is connected to the bottom of the connecting frame, and a sliding base 86 is slidably arranged on the connecting frame, and a lower heat sealing table 87 is installed on the top of the sliding base 86, wherein the lower heat sealing table 87 and the upper heat sealing table 84 are arranged relative to each other, and are heated by the heating rod arranged inside to achieve heat sealing of the coated battery cell head.

[0079] Furthermore, if Figure 16-Figure 18 As shown, the above-mentioned side packaging mechanism 9 includes a mounting main frame 91 mounted on the packaging machine 1, a mounting bracket 92 is mounted on the top of the mounting main frame 91, a downward pressure cylinder 93 is mounted on the top of the mounting bracket 92, and the telescopic rod of the downward pressure cylinder 93 passes through the top plate of the mounting bracket 92 and the top plate of the mounting main frame 91 to connect to a motion base 94, and the four corners of the motion base 94 are provided with guide columns, and the four guide columns pass through the top plate of the mounting main frame 91 to provide stability and guidance, and upper heat sealing platforms 95 are symmetrically arranged on both sides of the bottom surface of the motion base 94, and the two upper heat sealing platforms 95 correspond to the sides of the coated battery cell clamped by the packaging fixture 5; There is a through hole starting from the corresponding position of the top surface of the packaging machine 1, and an upper cylinder 96 is connected to the bottom plate on which the main frame 91 is installed. The upper cylinder 96 is arranged through the through hole, and the telescopic rod of the upper cylinder 96 is connected to a push platform 97 through the bottom plate on which the main frame 91 is installed. Lower heat sealing platforms 98 are symmetrically arranged on both sides of the top surface of the push platform 97, and guide rods are arranged at the four corners of the push platform 97. The four guide rods are arranged through the bottom plate on which the main frame 91 is installed for guiding. The two lower heat sealing platforms 98 are arranged corresponding to the two upper heat sealing platforms 95, and the two lower heat sealing platforms 98 are arranged through the two heat sealing matching grooves 512 of the supporting plate 51 to achieve heat sealing on the sides of the battery cells.

[0080] Furthermore, in this embodiment, when the side is heat-sealed, one side is heat-sealed along the side of the battery cell, and one side is heat-sealed with a partial gap, leaving space for biochemical gas generation in subsequent processes, and then a sealing process is performed.

[0081] Embodiment 2

[0082] This embodiment provides a battery cell packaging process, which is packaged using the packaging equipment of the first embodiment. The process includes the following steps:

[0083] Step 1, loading: by driving the linear module 1 22, the vacuum adsorption head on the connecting bracket 27 is driven to move, the aluminum-plastic film after the die is punched in the previous process is adsorbed, and then it is moved to the top of the packaging fixture 5 of the loading station, and the pressing cylinder 32 is started to drive the pressing rod 1 34 and the pressing rod 2 35 to press and open the positioning clamp 53 on the packaging fixture 5, and then the motion cylinder 24 is started to drive the fixed base 25 to move downward, and then drive the aluminum-plastic film to move downward, and after moving to the set position, the aluminum-plastic film is released, and then the motion cylinder 24 drives the vacuum adsorption head to reset, and the pressing cylinder 32 drives the pressing rod 1 34 and the pressing rod 2 35 to reset, and the pressure on the positioning clamp 53 is released, so that the positioning clamp 53 clamps the aluminum-plastic film placed on the bearing groove 511;

[0084] Step 2, material unloading and folding: After loading, start the regulating cylinder 2 121 on the linear module 3 12 close to the side of the loading mechanism 2 to make it rise, drive the electromagnet 122 to absorb the corresponding movable limit block 2 59, and then the linear module 3 12 drives the two groups of packaging fixtures 5 to move to the next station, move the packaging fixture 5 of the transfer station to the folding station, move the packaging fixture 5 of the loading station to the transfer station, move the packaging fixture 5 to the folding station, put the roll core in the aluminum-plastic film punching pit, and then start the lifting cylinder 61 to drive the positioning seat 63 to plug with the positioning block 56. After plugging, start the folding drive cylinder 62 to drive the positioning seat 63 moves, the positioning seat 63 drives the positioning block 56 to move, and then the positioning block 56 drives the tooth plate 55 to move, the tooth plate 55 drives the folding gear 57, and the folding gear 57 drives the folding plate 52 to fold; after folding, the adjusting cylinder 3 72 drives the flattening bar 74 to rise, and then the rotating cylinder 2 73 drives the flattening bar 74 to rotate to be perpendicular to the length direction of the packaging fixture 5, and then the adjusting cylinder 3 72 is started again to drive the flattening bar 74 to descend, and the folded aluminum-plastic film is flattened on the upper surface of the winding core to form an upper cover. During the folding process, the positioning clamp 53 is pressed by the pressing component 2 10. After flattening, the positioning clamp 53 is released to clamp the two ends of the folded aluminum-plastic film;

[0085] Step 3, top heat sealing: After folding and clamping, start the linear module 2 11 close to the folding station to drive the packaging fixture 5 to move to the top heat sealing station, start the down-pressing cylinder 1 82 and the up-pressing cylinder 1 85, and respectively drive the upper heat sealing table 1 84 and the lower heat sealing table 1 87 to heat seal the aluminum-plastic film;

[0086] Step 4, side heat sealing: After the top is heat sealed, the linear module 3 12 close to the side of the unloading mechanism 20 is started to move to the bottom of the packaging fixture 5 of the packaging station, so that the regulating cylinder 2 121 rises, driving the electromagnet 122 to adsorb the corresponding movable limit block 2 59, and then driving the packaging fixture 5 to move to the side heat sealing station. Similarly, the packaging fixture 5 in the side packaging mechanism 9 is moved to the unloading station. After moving to the side packaging mechanism 9, the downward pressure cylinder 2 93 and the upper cylinder 2 96 are started to respectively drive the upper heat sealing table 2 95 and the lower heat sealing table 2 98 to move, so as to heat seal both sides of the aluminum-plastic film;

[0087] Step 5, unloading: After heat sealing, the linear module 3 12 close to the unloading mechanism 20 is moved to the unloading station, the pressing component 3 30 presses the positioning clamp 53, and the unloading mechanism 20 drives the vacuum adsorption head to adsorb the packaged battery cell and transfer it to the next cutting process. After unloading, the empty packaging fixture 5 is moved to the loading station through the linear module 2 11 close to the unloading station to form a cycle.

[0088] In the present embodiment, the initial operation state of the equipment is that the linear module 2 11 close to the feeding mechanism 2 drives the packaging fixture 5 to be located at the feeding station, and the linear module 2 11 close to the folding station drives the packaging fixture 5 to be located at the top heat sealing station, wherein packaging fixtures 5 are provided at the conduction station and the side heat sealing station, and the four packaging fixtures 5 are all in an empty state.

[0089] In this embodiment, the two linear modules 12 drive the packaging fixture 5 to move one station each time, and six cycles of conveying are required to form a complete cycle. After the cycle, the entire device can be continuously processed and conveyed;

[0090] Embodiment 3

[0091] In this embodiment, on the basis of the first embodiment, the leveling assembly 7 is replaced by a second leveling mechanism 100, wherein the second leveling mechanism 100 comprises a leveling guide rail 101 installed on the packaging machine 1, a moving seat 102 is installed on the leveling guide rail 101, and a transverse cylinder 103 is arranged on one side of the packaging machine 1, the telescopic rod of the transverse cylinder 103 is connected with the moving seat 102 to realize the movement of the moving seat 102, an adjusting cylinder 4 104 is arranged on the top of the moving seat 102, a rotating cylinder 3 105 is arranged on the top of the adjusting cylinder 4 104, a leveling plate 106 is arranged on the rotating seat of the rotating cylinder 3 105, and a leveling boss is arranged at the front end of the leveling plate 106 where the core is attached;

[0092] The flattening plate 106 is driven to move horizontally by the transverse cylinder 103, so that the flattening and extrusion of the upper cover can cover a larger range, so that the upper cover of the aluminum-plastic film can fit more closely to the roll core, and the packaging can be more compact. At the same time, by setting a flattening boss, on the one hand, the fitting area is increased, so that the flattening plate 106 can extrude and exhaust more fully, and on the other hand, the defect of the moving range being limited by the positioning clamp 53 is compensated, so that the flattening plate 106 can completely extrude the entire roll core range.

[0093] Embodiment 4

[0094] In this embodiment, based on the first or third embodiment, a flat running groove 522 is opened on the folding plate 52. After the folding plate 52 is flipped, the flat running groove 522 is close to the top surface of the supporting plate 51, so that the flat strip 74 or the flat plate 106 can pass directly, and the aluminum-plastic film is flattened from the root of the fold, thereby further improving the tightness of the battery cell packaging.

[0095] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0096] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. 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 an indirect connection 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 the present invention can be understood according to specific circumstances.

[0097] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A battery cell packaging device, comprising a packaging machine (1), characterized in that: A conducting table (4) is arranged in the middle of the packaging machine (1); a loading mechanism (2) and a unloading mechanism (20) are arranged on one side of the packaging machine (1) that receives the upper and lower processes; a pressing component 1 (3), a packaging fixture (5), a folding power component (6), a flattening component (7), a pressing component 2 (10), a top packaging mechanism (8), a side packaging mechanism (9) and a pressing component 3 (30) are arranged in sequence in the conveying direction from the loading mechanism (2) to the unloading mechanism (20); A U-shaped conveying route is formed by a feeding mechanism (2), a conducting platform (4), a folding power assembly (6), a flattening assembly (7), a top sealing mechanism (8), a side sealing mechanism (9) and a feeding mechanism (20); There are multiple groups of packaging clamps (5), which are arranged in sequence along the conveying direction to form a circular conveying on a U-shaped conveying route.

2. A battery cell packaging device according to claim 1, characterized in that: Two sets of linear module sets 2 (11) and two sets of linear module sets 3 (12) are symmetrically arranged on the top surface of the packaging machine (1) and around the conducting platform (4) on four sides. Both sets of linear module sets 2 (11) are provided with splicing guide rails (14) to cooperate with the conducting platform (4) to form a U-shaped conducting structure capable of cyclic conduction.

3. A battery cell packaging device according to claim 1, characterized in that: The packaging fixture (5) comprises a carrying plate (51), a folding plate (52) is rotatably arranged on one side of the carrying plate (51), a plurality of groups of positioning clamps (53) are symmetrically arranged on the carrying plate (51), and a folding structure is arranged between the carrying plate (51) and the folding plate (52).

4. A battery cell packaging device according to claim 3, characterized in that: The folding structure comprises a connecting platform (54) connected to one side of the bottom of the carrying plate (51); a slider on the top surface of the connecting platform (54) is connected to a tooth plate (55); an outer side surface of the tooth plate (55) is connected to a positioning block (56); the folding plate (52) is rotatably connected to the carrying plate (51) via a rotating shaft; a rotating shaft close to one side of the tooth plate (55) is connected to a folding gear (57); and the folding gear (57) is meshingly connected to the tooth plate (55).

5. A battery cell packaging device according to claim 4, characterized in that: A second movable limit block (59) is also provided on one side of the bottom of the bearing plate (51), and a first movable limit block (58) is provided on the other side of the bottom of the bearing plate (51).

6. A battery cell packaging device according to any one of claims 1 to 5, characterized in that: The folding power assembly (6) comprises a lifting cylinder (61), the telescopic rod of the lifting cylinder (61) is connected to a folding drive cylinder (62), the folding drive cylinder (62) is connected to a positioning seat (63), and the leveling assembly (7) comprises a fixed platform (71), the top of the fixed platform (71) is connected to an adjusting cylinder three (72), the top of the adjusting cylinder three (72) is connected to a rotating cylinder two (73), and a leveling strip (74) is arranged on the rotating cylinder two (73).

7. The battery cell packaging device according to claim 1, characterized in that: The top sealing mechanism (8) comprises a fixed frame (81), a downward pressure cylinder (82) is installed on the top of the fixed frame (81), a sliding base (83) is slidably installed on the side of the fixed frame (81), an upper heat sealing platform (84) is installed at the bottom of the sliding base (83), a connecting frame is connected to the bottom of the fixed frame (81), an upper cylinder (85) is connected to the bottom of the connecting frame, a sliding base (86) is slidably arranged on the connecting frame, and a lower heat sealing platform (87) is installed on the top of the sliding base (86).

8. The battery cell packaging device according to claim 1, characterized in that: The side sealing mechanism (9) comprises a main mounting frame (91), a mounting bracket (92) is mounted on the top of the main mounting frame (91), a second downward pressure cylinder (93) is mounted on the top of the mounting bracket (92), a telescopic rod of the second downward pressure cylinder (93) is connected to a moving base (94), two upper heat sealing tables (95) are symmetrically arranged on both sides of the bottom surface of the moving base (94), a second upper push cylinder (96) is connected to the bottom plate of the main mounting frame (91), a telescopic rod of the second upper push cylinder (96) passes through the bottom plate of the main mounting frame (91) and is connected to a push platform (97), and two lower heat sealing tables (98) are symmetrically arranged on both sides of the top surface of the push platform (97).

9. A battery cell packaging device according to any one of claims 1 to 5, characterized in that: The leveling assembly (7) is a second leveling mechanism (100), the second leveling mechanism (100) comprising a leveling guide rail (101), a movable seat (102) being mounted on the leveling guide rail (101), a transverse cylinder (103) being arranged on one side of the packaging machine (1), a telescopic rod of the transverse cylinder (103) being connected to the movable seat (102), an adjusting cylinder four (104) being arranged on the top of the movable seat (102), a rotating cylinder three (105) being arranged on the top of the adjusting cylinder four (104), and a leveling plate (106) being arranged on the rotating seat of the rotating cylinder three (105).

10. A battery cell packaging process, characterized in that: The battery cell packaging device according to any one of claims 1 to 9 is used for packaging: The process includes the following steps: Step 1: Loading: The aluminum-plastic film after the die punching in the previous process is adsorbed by the loading mechanism (2), and then moved to the top of the packaging fixture (5) at the loading station; Step 2, unloading and folding: after loading, the linear module 3 (12) on the side close to the loading mechanism (2) is started to drive the packaging fixture (5) to move, the packaging fixture (5) at the transfer station is moved to the folding station, the packaging fixture (5) at the loading station is moved to the transfer station, and the packaging fixture (5) at the folding station is moved to the aluminum-plastic film punching hole, and the roll core is placed in the aluminum-plastic film punching hole to fold and flatten; Step 3, top heat sealing: After folding and clamping, start the linear module 2 (11) close to the folding station to drive the packaging fixture (5) to move to the top heat sealing station to perform top heat sealing; Step 4: Side heat sealing: After the top is heat sealed, the linear module 3 (12) close to the feeding mechanism (20) is activated to drive the packaging fixture (5) to move to the side heat sealing station to perform side heat sealing; Step 5, unloading: After heat sealing, the battery is moved to the unloading station through the linear module 3 (12) close to the unloading mechanism (20). The unloading mechanism (20) drives the vacuum adsorption head to adsorb the packaged battery cell and transfer it to the next process. The empty packaging fixture (5) is moved to the loading station through the linear module 2 (11) close to the unloading station, forming a cycle.

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