Full-automatic secondary sealing line of soft package lithium battery

Abstract

The full-automatic secondary sealing line comprises a feeding machine, a secondary sealing rough cutting machine, a fine cutting edge sealing machine and a discharging machine, the feeding machine positions the soft package lithium batteries in a whole row and then places the soft package lithium batteries into the secondary sealing rough cutting machine, after the secondary sealing rough cutting machine conducts puncturing, vacuumizing and heat sealing on the soft package lithium batteries, rough cutting is conducted firstly, and then fine cutting edge sealing is conducted on the soft package lithium batteries; then centering, accurate cutting, edge folding and edge ironing forming treatment are conducted through an accurate cutting edge sealing machine, and finally collecting and arranging are conducted through a discharging machine. According to the full-automatic secondary sealing line of the soft package lithium battery, automatic feeding and conveying are conducted on the soft package lithium battery, air bag puncturing, battery liquid discharging through vacuumizing and heat sealing treatment are conducted in a secondary sealing structure, rough edge cutting is conducted firstly, fine edge cutting is conducted after the position is centered, heat sealing forming is conducted after folding and edge covering are conducted, and finally automatic discharging and collecting are conducted, manual participation is not needed in the whole process, the production efficiency is high, and the production cost is low. The precision is high, the efficiency is improved, and the yield is improved.

Description

Technical Field

[0001] This invention relates to the technical field of pouch batteries, and more particularly to a fully automated second sealing line for pouch lithium batteries. Background Technology

[0002] Currently, in the secondary sealing production of soft-pack lithium batteries, manual intervention is required at the loading and unloading points, resulting in low automation and poor quality during the secondary sealing process. This leads to poor results in processes such as puncturing the airbag, rough cutting, fine cutting, and edge folding, resulting in a low yield rate for the entire production process. Summary of the Invention

[0003] One objective of this invention is to provide a fully automated secondary sealing line for soft-pack lithium batteries, which employs automated feeding and unloading machines, achieves high precision in the secondary sealing process, saves labor costs, and ensures high quality throughout the entire production line.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A fully automated double-sealing line for pouch lithium batteries includes a feeding machine, a double-sealing rough cutter, a fine-cutting edge-sealing machine, and a unloading machine. The feeding machine positions the pouch lithium batteries in an entire row and then places them into the double-sealing rough cutter. After the double-sealing rough cutter punctures, vacuums, and heat-seales the pouch lithium batteries, they are first rough-cut. Then, the fine-cutting edge-sealing machine performs centering, fine cutting, folding, and hot-pressing edge forming processes. Finally, the unloading machine collects and sorts the batteries.

[0006] As a preferred technical solution, the feeding machine includes a feeding bracket, a feeding robot, and a feeding positioning module. Carrier plate moving assemblies are provided on both sides of the feeding bracket. Each carrier plate moving assembly includes a carrier plate lifting module, a frame translation plate, and a frame body. A lifting space is provided vertically in the middle of the frame body. Several carrier plates are stacked on the frame body. The lower sides of the frame body slide horizontally on the frame translation plate. A carrier plate support is connected to the driving end of the carrier plate lifting module. The carrier plate support moves within the lifting space. A feeding suction nozzle is installed on the movable end of the feeding robot, and the feeding suction nozzle moves between the carrier plate and the feeding positioning module.

[0007] As a preferred technical solution, the carrier plate lifting module includes a carrier plate lifting motor and a carrier plate lifting screw. The carrier plate lifting screw is rotatably connected in the carrier plate lifting module. A carrier plate lifting nut seat is fixed on the carrier plate. The carrier plate lifting screw is threadedly connected to the carrier plate lifting nut seat. A carrier plate synchronous pulley is installed at both the drive end of the carrier plate lifting motor and the end of the carrier plate lifting screw. A carrier plate synchronous belt is connected between the carrier plate synchronous pulleys.

[0008] As a preferred technical solution, the feeding and positioning module includes a feeding and positioning support, a feeding and positioning cylinder is fixed at the lower end of the feeding and positioning support, and feeding and positioning fixing strips and feeding and positioning movable plates are respectively provided on both sides of the feeding and positioning support. The feeding and positioning movable plates are connected to the driving end of the feeding and positioning cylinder.

[0009] As a preferred technical solution, the two-sealing rough cutting machine includes a turntable mechanism, a two-sealing mechanism, a rough cutting mechanism, and a push plate transfer mechanism. The turntable mechanism is provided with a worktable turntable, and the worktable turntable is provided with a battery positioning cavity. The two-sealing mechanism is provided with an upper sealing cavity and a lower sealing cavity. The upper sealing cavity is provided with a set of piercing blades, and the lower sealing cavity is provided with a liquid outlet channel. The rough cutting mechanism is provided with an upper cutting blade and a lower cutting blade. The push plate transfer mechanism is provided with a push plate strip and a push plate transfer nozzle.

[0010] As a preferred technical solution, a lifting cylinder is provided below the battery positioning cavity, and the driving end of the lifting cylinder is vertically connected to an edge-supporting plate. A battery cover plate is provided on the top of the battery positioning cavity.

[0011] As a preferred technical solution, the lower end of the two-sealing mechanism is provided with a lower sealing cylinder, the driving end of the lower sealing cylinder is connected to the lower sealing cavity, a lower heat sealing module is fixed on the outside of the lower sealing cavity, an airbag cavity is provided inside the lower sealing cavity, the upper end of the two-sealing mechanism is provided with an upper sealing cylinder, the driving end of the upper sealing cylinder is connected to the upper sealing cavity, and an upper heat sealing module, a vacuum cylinder, a bayonet cylinder and a battery cylinder are installed on the upper end of the upper sealing cavity.

[0012] As a preferred technical solution, the precision cutting and edge banding machine includes an edge banding moving module, a centering mechanism, a precision cutting mechanism, a folding mechanism, and an edge banding mechanism. The centering mechanism includes a centering cylinder, and two sets of the centering cylinders are respectively located on both sides of the front end of the edge banding moving module. The driving end of the centering cylinder is connected to a centering strip.

[0013] As a preferred technical solution, the feeding machine includes a tilting conveyor mechanism, a feeding robot, a gripping robot, and a feeding mechanism. The tilting conveyor mechanism includes a tilting cylinder and a feeding conveyor belt. The driving end of the tilting cylinder is connected to a tilting rod, and a tilting suction nozzle is installed on the tilting rod.

[0014] As a preferred technical solution, the unloading mechanism is provided with a unloading cavity and an empty plate cavity on both sides, the unloading robot is located between the unloading and the flipping conveyor mechanism, and the gripping robot is located at the rear of the unloading mechanism.

[0015] The beneficial effects of this invention are as follows: It provides a fully automated double-sealing line for soft-pack lithium batteries. This fully automated double-sealing line automatically feeds and conveys soft-pack lithium batteries. In the double-sealing structure, the air bladder is punctured, the battery fluid is extracted by vacuuming, and then heat-sealing is performed. First, the edges are roughly cut, then the center position is aligned and the edges are finely cut. After folding and wrapping the edges, the batteries are heat-sealed and formed. Finally, the batteries are automatically unloaded and collected. The entire process requires no manual intervention, has high precision, improves efficiency, and increases the yield rate. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of a fully automated secondary sealing line for a soft-pack lithium battery as described in the embodiment.

[0018] Figure 2 This is a schematic diagram of the feeding machine described in the embodiment;

[0019] Figure 3 This is an overall structural diagram of the carrier plate moving assembly described in the embodiment;

[0020] Figure 4 This is a partial structural diagram of the carrier plate moving assembly described in the embodiment;

[0021] Figure 5 This is a schematic diagram of the loading robot described in the embodiment;

[0022] Figure 6 This is a schematic diagram of the feeding and positioning module described in the embodiment;

[0023] Figure 7 This is a schematic diagram of the structure of the two-sealing rough cutting machine described in the embodiment;

[0024] Figure 8 This is a schematic diagram of the rotary mechanism described in the embodiment;

[0025] Figure 9 This is a partial structural diagram of the rotary mechanism described in the embodiment;

[0026] Figure 10 This is a schematic diagram of the two-sealing mechanism described in the embodiment;

[0027] Figure 11 This is a structural diagram of the first upper end of the two-sealing mechanism described in the embodiment;

[0028] Figure 12 This is a structural diagram of the second upper end of the two-sealing mechanism described in the embodiment;

[0029] Figure 13 This is a diagram of the lower end structure of the two-sealing mechanism described in the embodiment;

[0030] Figure 14 This is a schematic diagram of the coarse edge cutting mechanism described in the embodiment;

[0031] Figure 15 This is a schematic diagram of the pusher plate transfer mechanism described in the embodiment;

[0032] Figure 16 This is a schematic diagram of the precision cutting and edge banding machine described in the embodiment;

[0033] Figure 17 This is a schematic diagram of the front end structure of the precision cutting and edge banding machine described in the embodiment;

[0034] Figure 18 This is a schematic diagram of the mid-section structure of the precision cutting and edge banding machine described in the embodiment;

[0035] Figure 19 This is a schematic diagram of the rear end structure of the precision cutting and edge banding machine described in the embodiment;

[0036] Figure 20 This is a schematic diagram of the feeding machine described in the embodiment.

[0037] Figures 1 to 20 middle:

[0038] 1. Feeding machine; 101. Feeding bracket; 102. Feeding robot; 103. Feeding positioning module; 104. Carrier plate moving assembly; 105. Carrier plate lifting module; 106. Frame translation plate; 107. Frame body; 108. Carrier plate; 109. Carrier plate support plate; 110. Feeding nozzle; 111. Frame moving guide plate; 112. Frame slide rail; 113. Magnet; 114. Frame handle; 115. Carrier plate lifting motor; 116. Carrier plate lifting screw; 117. Carrier plate synchronous wheel; 118. Carrier plate lifting slide rail; 119. Feeding positioning support; 120. Feeding positioning cylinder; 121. Feeding positioning fixing strip; 122. Feeding positioning movable plate; 123. Soft-pack lithium battery;

[0039] 2. Second-stage sealing and roughing machine; 201. Rotary mechanism; 202. Second-stage sealing mechanism; 203. Roughing edge trimming mechanism; 204. Push plate transfer mechanism; 205. Worktable turntable; 206. Battery positioning cavity; 207. Upper sealing cavity; 208. Lower sealing cavity; 209. Bayonet assembly; 210. Liquid outlet channel; 211. Upper cutter; 212. Lower cutter; 213. Push plate strip; 214. Push plate transfer nozzle; 215. Lifting cylinder; 216. Edge wrapping lifting plate; 217. Battery cover plate; 218. Turntable motor; 219. Turntable reducer; 220. Turntable positioning cylinder; 221 222. Turntable positioning module; 223. T-block; 224. Turntable positioning component; 225. Turntable positioning wheel; 226. Lower sealing cylinder; 227. Lower heat sealing module; 228. Airbag cavity position; 229. Upper sealing cylinder; 230. Upper heat sealing module; 231. Vacuum breaking cylinder; 232. Bayonet cylinder; 233. Battery pressing cylinder; 234. Battery pressing plate; 235. Vacuum breaking rod; 236. Coarse cutting clamping strip; 237. Upper coarse cutting cylinder; 238. Lower coarse cutting cylinder; 239. Storage funnel; 240. Push plate transfer horizontal movement module; 25. Push plate transfer vertical movement cylinder.

[0040] 3. Precision edge banding machine; 301. Edge banding moving module; 302. Centering mechanism; 303. Precision cutting mechanism; 304. Folding mechanism; 305. Edge banding mechanism; 306. Edge banding clamping cylinder; 307. Edge banding clamping strip; 308. Centering cylinder; 309. Centering strip; 310. Precision cutting motor; 311. Precision cutting synchronous pulley; 312. Precision cutting rotary wheel; 313. Folding bracket; 314. Folding guide wheel; 315. Folding handwheel; 316. Folding adjusting rod; 317. Edge banding cylinder; 318. Heat sealing strip; 319. Edge banding transfer horizontal movement module; 320. Edge banding transfer vertical movement cylinder; 321. Edge banding transfer suction nozzle;

[0041] 4. Feeding machine; 401. Tilting cylinder; 402. Feeding conveyor belt; 403. Tilting rod; 404. Tilting suction nozzle; 405. Feeding chamber; 406. Empty plate chamber; 407. Feeding lifting module; 408. Grab plate horizontal movement module; 409. Grab plate vertical movement cylinder; 410. Grab plate I-beam frame; 411. Feeding horizontal movement module; 412. Feeding vertical movement cylinder; 413. Feeding suction nozzle. Detailed Implementation

[0042] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0043] like Figure 1As shown in this embodiment, a fully automatic second-sealing line for soft-pack lithium batteries includes a feeding machine 1, a second-sealing rough cutter 2, a fine-cutting edge-sealing machine 3, and a unloading machine 4. The feeding machine 1 positions the soft-pack lithium batteries 123 in an orderly row and then puts them into the second-sealing rough cutter 2. After the second-sealing rough cutter 2 punctures, vacuums, and heat-seales the soft-pack lithium batteries 123, it first performs rough cutting, and then the fine-cutting edge-sealing machine 3 performs centering, fine cutting, folding, and hot-pressing edge forming processes. Finally, the unloading machine 4 collects them. The specific structure is as follows.

[0044] like Figures 2 to 6 As shown, the feeding machine 1 includes a feeding bracket 101, a feeding robot 102, and a feeding positioning module 103. The feeding bracket 101 has a carrier plate moving assembly 104 on both sides. The carrier plate moving assembly 104 includes a carrier plate lifting module 105, a frame translation plate 106, and a frame body 107. The frame body 107 has a lifting space in the middle along the vertical direction. Several carrier plates 108 are stacked on the frame body 107. The lower ends of the frame body 107 slide on the frame translation plate 106 along the horizontal direction. The driving end of the carrier plate lifting module 105 is connected to a carrier plate support plate 109. The carrier plate support plate 109 moves within the lifting space. The feeding robot 102 has a feeding suction nozzle 110 installed on its movable end. The feeding suction nozzle 110 moves between the carrier plate 108 and the feeding positioning module 103.

[0045] Carrier plates 108 fully loaded with soft-pack lithium batteries 123 are stacked on the frame body 107. The frame body 107 moves along the frame translation plate 106 to the end of the frame body 107. The carrier plate lifting module 105 controls the carrier plate support plate 109 to rise from bottom to top, lifting the carrier plate 108 to the highest position. The loading robot 102 grabs the soft-pack lithium batteries 123 in a row and positions them in the loading positioning module 103, and then inputs them into the double-sealed structure. When the carrier plate 108 at the highest position is empty, the loading robot 102 transfers the top empty carrier plate 108 to the frame body 107 on one side of the loading bracket 101 for storage. In the frame body 107 on the other side, the carrier plate lifting module 105 controls the carrier plate support plate 109 to gradually descend, and after storing the empty carrier plate 108, it moves out from the frame translation plate 106 to complete the entire loading process.

[0046] A frame moving guide plate 111 is fixed to the outside of the frame sliding plate 106. The front end of the frame moving guide plate 111 is bent outward. A frame slide rail 112 is fixed to the frame moving plate. A frame slider is fixed to the lower end of the frame body 107. The frame slider slides on the frame slide rail 112. Magnets 113 are fixed to both the front and rear ends of the frame moving plate. A frame handle 114 is installed on the outer end of the frame body 107.

[0047] With the help of the frame handle 114, the entire frame body 107 is easy to input and output. When moving on the frame moving plate, the frame slide rail 112 reduces friction. At the extreme position, the frame body 107 is quickly magnetically fixed by the magnet 113. Then, it moves more smoothly into the loading position at the bending part of the frame moving guide plate 111.

[0048] The carrier plate lifting module 105 includes a carrier plate lifting motor 115 and a carrier plate lifting screw 116. The carrier plate lifting screw 116 is rotatably connected in the carrier plate lifting module 105. A carrier plate lifting nut seat is fixed on the carrier plate 109. The carrier plate lifting screw 116 is threadedly connected to the carrier plate lifting nut seat. The drive end of the carrier plate lifting motor 115 and the end of the carrier plate lifting screw 116 are both equipped with carrier plate synchronous pulleys 117. A carrier plate synchronous belt is connected between the carrier plate synchronous pulleys 117.

[0049] Furthermore, a carrier plate lifting slide rail 118 is fixed on the carrier plate lifting module 105 along the vertical direction, and a carrier plate lifting slider 108 is installed on the carrier plate support plate 109, with the carrier plate lifting slide rail 118 sliding on the carrier plate lifting slide rail 118.

[0050] When the carrier plate 108 is lifted, the carrier plate lifting motor 115 provides power, causing the carrier plate lifting screw 116 to rotate, and the carrier plate 109 with the carrier plate 108 lifting nut seat will be lifted or lowered along the carrier plate lifting slide rail 118.

[0051] The loading and positioning module 103 includes a loading and positioning support 119. A loading and positioning cylinder 120 is fixed at the lower end of the loading and positioning support 119. Loading and positioning fixing strips 121 and loading and positioning movable plates 122 are respectively provided on both sides of the loading and positioning support 119. The loading and positioning movable plate 122 is connected to the drive end of the loading and positioning cylinder 120.

[0052] After the loading robot 102 places the soft-pack lithium battery 123 onto the loading positioning support 119, the loading positioning cylinder 120 controls the loading positioning movable plate 122 to position the soft-pack lithium battery 123 to one side of the loading positioning fixing strip 121, which facilitates the subsequent secondary sealing process.

[0053] like Figures 7 to 15 As shown, the double-sealing rough cutting machine 2 includes a turntable mechanism 201, a double-sealing mechanism 202, a rough edge cutting mechanism 203, and a push plate transfer mechanism 204. The turntable mechanism 201 rotates the soft-pack lithium battery 123. The double-sealing mechanism 202 punctures the soft-pack lithium battery 123 in the turntable mechanism 201 with airbags, evacuates the battery fluid, and then performs heat sealing. The rough edge cutting mechanism 203 performs rough edge cutting on the double-sealed soft-pack lithium battery 123. The push plate transfer mechanism 204 removes the soft-pack lithium battery 123 from the turntable mechanism 201.

[0054] The turntable mechanism 201 is equipped with a worktable turntable 205, and the worktable turntable 205 is equipped with a battery positioning cavity 206. The two-sealing mechanism 202 is equipped with an upper sealing cavity 207 and a lower sealing cavity 208. The upper sealing cavity 207 is equipped with a stab group 209, and the lower sealing cavity 208 is equipped with a liquid outlet channel 210. The coarse edge trimming mechanism 203 is equipped with an upper cutter 211 and a lower cutter 212. The push plate transfer mechanism 204 is equipped with a push plate strip 213 and a push plate transfer nozzle 214.

[0055] A lifting cylinder 215 is provided below the battery positioning cavity 206. The driving end of the lifting cylinder 215 is vertically connected to the edge lifting plate 216. The battery positioning cavity 206 is covered with a battery cover plate 217. After the soft-pack lithium battery 123 is placed in the battery positioning cavity 206, the lifting cylinder 215 controls the edge lifting plate 216 to support the outer edge of the soft-pack lithium battery 123, and then the battery cover plate 217 is closed to fix it.

[0056] A turntable motor 218 is installed below the turntable 205. The turntable motor 218 controls the rotation of the turntable 205 through the turntable reducer 219. A turntable positioning cylinder 220 and a turntable positioning module 221 are installed on the side of the second sealing mechanism 202. A T-block 222 is connected to the drive end of the turntable positioning cylinder 220. A turntable positioning component 223 that moves vertically is installed inside the turntable positioning module 221. A turntable positioning wheel 224 is installed inside the turntable positioning component 223. The turntable positioning wheel 224 is in rolling connection with the T-block 222.

[0057] The lower end of the secondary sealing mechanism 202 is provided with a lower sealing cylinder 225, the driving end of which is connected to the lower sealing cavity 208. A lower heat sealing module 226 is fixed on the outside of the lower sealing cavity 208. An airbag cavity 227 is provided inside the lower sealing cavity 208. The upper end of the secondary sealing mechanism 202 is provided with an upper sealing cylinder 228, the driving end of which is connected to the upper sealing cavity 207. An upper heat sealing module 229, a vacuum cylinder 230, a bayonet cylinder 231, and a battery cylinder 232 are installed on the upper end of the upper sealing cavity 207.

[0058] The lower sealing cylinder 225 controls the lower sealing cavity 208 to rise, and the upper sealing cylinder 228 controls the upper sealing cavity 207 to descend, together covering the soft-pack lithium battery 123 and forming a vacuum cavity. The battery pressing cylinder 232 controls the battery pressing plate 233 to press the soft-pack lithium battery 123 tightly. The airbag cavity 227 places the outer airbag of the soft-pack lithium battery 123. The bayonet cylinder 231 controls the bayonet group 209 to move down to the airbag cavity 227 to puncture the airbag. After the excess battery fluid is discharged from the liquid outlet channel 210, the vacuum breaking cylinder 230 controls the vacuum breaking rod 234 to rise to achieve vacuum breaking. Then the upper heat sealing module 229 and the lower heat sealing module 226 perform heat sealing treatment on the edge. Then the upper sealing cavity 207 and the lower sealing cavity 208 are opened.

[0059] The soft-pack lithium battery 123 is transferred into the coarse edge cutting mechanism 203. The upper coarse cutting cylinder 236 controls the coarse cutting clamping strip 235 to press on the soft-pack lithium battery 123 while the upper cutter 211 moves downward. Then, the lower cutter 212 performs coarse cutting on the edge under the action of the lower coarse cutting cylinder 237. Waste is collected from the collection funnel 238.

[0060] The push plate transfer transverse module 239 and the push plate transfer vertical cylinder 240 on the push plate transfer mechanism 204 control the push plate strip 213 to push open the battery cover 217, and then the push plate transfer suction nozzle 214 adsorbs the soft-pack lithium battery 123 into the precision cutting and sealing machine 3.

[0061] like Figures 16 to 19 As shown, the precision cutting and sealing machine 3 includes a sealing moving module 301, a centering mechanism 302, a precision cutting mechanism 303, a folding mechanism 304, and a sealing mechanism 305. The sealing moving module 301 is responsible for linearly transferring the soft-pack lithium battery 123. The centering mechanism 302 controls the soft-pack lithium battery 123 to be in the middle position. The precision cutting mechanism 303 accurately cuts off the excess sealing edges on both sides of the soft-pack lithium battery 123. The folding mechanism 304 bends the sealing edges of the soft-pack lithium battery 123 twice. The sealing mechanism 305 heat-seals the sealing edges of the soft-pack lithium battery 123 from both sides.

[0062] The edge sealing moving module 301 moves laterally. An edge sealing pressing cylinder 306 is installed at the upper end of the edge sealing moving module 301. An edge sealing pressing strip 307 is connected to the drive end of the edge sealing pressing cylinder 306. The edge sealing pressing strip 307 fixes the soft-pack lithium battery 123 to the drive end of the edge sealing moving module 301 after alignment.

[0063] The centering mechanism 302 includes centering cylinders 308. Two sets of centering cylinders 308 are located on the front sides of the edge sealing moving module 301. The driving end of the centering cylinder 308 is connected to the centering strip 309. The centering cylinder 308 controls the centering strip 309 to center the soft-pack lithium battery 123 from both sides.

[0064] The precision cutting mechanism 303 includes a precision cutting motor 310, which controls the precision cutting wheel 312 to remove excess edge trimmings via a precision cutting synchronous wheel 311.

[0065] The folding mechanism 304 includes a folding bracket 313, which is provided with a plurality of folding guide wheels 314. Folding handwheels 315 are installed on both sides of the folding bracket 313. The folding handwheels 315 control the position of the folding bracket 313 through the folding adjustment rod 316, so that the folding guide wheels 314 bend the precision-cut edge.

[0066] The edge sealing mechanism 305 includes an edge sealing cylinder 317. The drive end of the edge sealing cylinder 317 is connected to a heat sealing strip 318. The heat sealing strips 318 on both sides come together to heat seal the edge after folding.

[0067] The precision edge banding machine 3 also includes an edge banding transfer transverse module 319. The drive end of the edge banding transfer transverse module 319 is connected to an edge banding transfer vertical cylinder 320. The drive end of the edge banding transfer vertical cylinder 320 is connected to an edge banding transfer suction nozzle 321. The edge banding soft-pack lithium battery 123 is transferred to the flipping conveyor mechanism by the edge banding transfer suction nozzle 321.

[0068] like Figure 20 As shown, the unloading machine 4 includes a flipping conveyor mechanism, an unloading machine 4 robotic arm, a gripping robotic arm, and an unloading machine 4 structure. The flipping conveyor mechanism flips and moves the soft-pack lithium battery 123 transferred from the precision cutting and sealing machine 3. The unloading machine 4 robotic arm grips the soft-pack lithium battery 123 on the flipping conveyor mechanism and places them into the unloading machine 4 structure. The gripping robotic arm places the empty plate 108 on the full-load plate 108.

[0069] The tilting conveyor mechanism includes a tilting cylinder 401 and a feeding conveyor belt 402. The drive end of the tilting cylinder 401 is connected to a tilting rod 403, and a tilting suction nozzle 404 is installed on the tilting rod 403.

[0070] The unloading machine 4 has a unloading chamber 405 and an empty plate chamber 406 on both sides. Unloading lifting modules 407 are installed on both the unloading chamber 405 and the empty plate chamber 406. The drive end of the unloading lifting module 407 supports the carrier plate 108. The unloading machine 4 robotic arm is located between the unloading and flipping conveyor mechanism. The gripping robotic arm is located at the rear of the unloading machine 4.

[0071] The gripper includes a gripper horizontal movement module 408, the drive end of which is connected to a gripper vertical movement cylinder 409, the drive end of which is connected to a gripper I-beam 410, and a gripper suction nozzle is installed on the gripper I-beam 410.

[0072] The flipping suction nozzle 404 picks up the soft-pack lithium battery 123 from the edge-sealing transfer suction nozzle 321, and then, under the action of the flipping cylinder 401, transfers it from top to bottom. Releasing the flipping suction nozzle 404, the soft-pack lithium battery 123 flips and falls onto the unloading conveyor belt 402, which then transports the soft-pack lithium battery 123 backward. The unloading robot 4 includes an unloading lateral movement module 411 and an unloading vertical movement cylinder 412. The unloading lateral movement... The drive end of module 411 is connected to the unloading vertical movement cylinder 412. Several unloading suction nozzles 413 are installed on the unloading vertical movement cylinder 412. The unloading suction nozzles 413 arrange the soft-pack lithium batteries 123 into the carrier plate 108 of the unloading chamber 405. When the current carrier plate 108 is fully loaded, the gripping robot picks up the empty carrier plate 108 in the empty plate cavity 406 and stacks it on the full-load carrier plate 108, and then continues to place the soft-pack lithium batteries 123 until it is fully loaded.

[0073] It should be stated that the above specific embodiments are merely preferred embodiments of the present invention and the technical principles applied thereto. Within the scope of the technology disclosed in the present invention, any variations or substitutions that are easily conceived by those skilled in the art should be covered within the protection scope of the present invention.

Claims

1. A fully automated secondary sealing line for a soft-pack lithium battery, characterized in that, The system includes a feeding machine, a second-stage sealing and roughing machine, a fine-cutting and edge-sealing machine, and a unloading machine. The feeding machine positions the soft-pack lithium batteries in an orderly row and then places them into the second-stage sealing and roughing machine. After the second-stage sealing and roughing machine punctures, vacuums, and heat-seals the soft-pack lithium batteries, they are first roughly cut. Then, the fine-cutting and edge-sealing machine performs centering, fine cutting, folding, and hot-pressing edge forming processes. Finally, the unloading machine collects and sorts the batteries.

2. The fully automated secondary sealing line for a soft-pack lithium battery according to claim 1, characterized in that, The feeding machine includes a feeding bracket, a feeding robot, and a feeding positioning module. Carrier plate moving assemblies are provided on both sides of the feeding bracket. Each carrier plate moving assembly includes a carrier plate lifting module, a frame translation plate, and a frame body. A lifting space is provided vertically in the middle of the frame body. Several carrier plates are stacked on the frame body. The lower sides of the frame body slide horizontally on the frame translation plate. A carrier plate support is connected to the drive end of the carrier plate lifting module, and the carrier plate support moves within the lifting space. A feeding suction nozzle is installed on the movable end of the feeding robot, and the feeding suction nozzle moves between the carrier plate and the feeding positioning module.

3. The fully automated secondary sealing line for a soft-pack lithium battery according to claim 2, characterized in that, The carrier plate lifting module includes a carrier plate lifting motor and a carrier plate lifting screw. The carrier plate lifting screw is rotatably connected in the carrier plate lifting module. A carrier plate lifting nut seat is fixed on the carrier plate. The carrier plate lifting screw is threadedly connected to the carrier plate lifting nut seat. A carrier plate synchronous pulley is installed at the drive end of the carrier plate lifting motor and the end of the carrier plate lifting screw. A carrier plate synchronous belt is connected between the carrier plate synchronous pulleys.

4. The fully automated secondary sealing line for a soft-pack lithium battery according to claim 2, characterized in that, The feeding and positioning module includes a feeding and positioning support, a feeding and positioning cylinder is fixed at the lower end of the feeding and positioning support, and a feeding and positioning fixing strip and a feeding and positioning movable plate are respectively provided on both sides of the feeding and positioning support. The feeding and positioning movable plate is connected to the driving end of the feeding and positioning cylinder.

5. The fully automated secondary sealing line for a soft-pack lithium battery according to claim 1, characterized in that, The two-seal roughing machine includes a turntable mechanism, a two-seal mechanism, a roughing edge mechanism, and a push plate transfer mechanism. The turntable mechanism is equipped with a worktable turntable, which has a battery positioning cavity. The two-seal mechanism has an upper sealing cavity and a lower sealing cavity. The upper sealing cavity is equipped with a set of stabs, and the lower sealing cavity is equipped with a liquid outlet channel. The roughing edge mechanism is equipped with an upper cutter and a lower cutter. The push plate transfer mechanism is equipped with a push plate strip and a push plate transfer nozzle.

6. The fully automated secondary sealing line for a soft-pack lithium battery according to claim 5, characterized in that, A lifting cylinder is provided below the battery positioning cavity, and the driving end of the lifting cylinder is vertically connected to an edge-supporting plate. A battery cover plate is provided on the top of the battery positioning cavity.

7. The fully automated secondary sealing line for a soft-pack lithium battery according to claim 5, characterized in that, The lower end of the two-sealing mechanism is provided with a lower sealing cylinder, the driving end of which is connected to the lower sealing cavity. A lower heat sealing module is fixed on the outside of the lower sealing cavity, and an airbag cavity is provided inside the lower sealing cavity. The upper end of the two-sealing mechanism is provided with an upper sealing cylinder, the driving end of which is connected to the upper sealing cavity. An upper heat sealing module, a vacuum cylinder, a bayonet cylinder, and a battery cylinder are installed on the upper end of the upper sealing cavity.

8. The fully automated secondary sealing line for a soft-pack lithium battery according to claim 1, characterized in that, The precision cutting and edge banding machine includes an edge banding moving module, a centering mechanism, a precision cutting mechanism, a folding mechanism, and an edge banding mechanism. The centering mechanism includes a centering cylinder, and two sets of the centering cylinders are located on both sides of the front end of the edge banding moving module. The driving end of the centering cylinder is connected to a centering strip.

9. The fully automated secondary sealing line for a soft-pack lithium battery according to claim 1, characterized in that, The feeding machine includes a tilting conveyor mechanism, a feeding robot, a gripping robot, and a feeding mechanism. The tilting conveyor mechanism includes a tilting cylinder and a feeding conveyor belt. The driving end of the tilting cylinder is connected to a tilting rod, and a tilting suction nozzle is installed on the tilting rod.

10. The fully automated secondary sealing line for a soft-pack lithium battery according to claim 9, characterized in that, The feeding mechanism has a feeding chamber and an empty plate chamber on both sides, the feeding robot is located between the feeding mechanism and the flipping conveyor mechanism, and the gripping robot is located at the rear of the feeding mechanism.

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