阅读说明：本技术 一种软包锂电池制作方法 (Manufacturing method of soft package lithium battery ) 是由 不公告发明人 于 2020-12-16 设计创作，主要内容包括：本发明涉及一种软包锂电池制作方法,涉及锂离子电池生产工艺的技术领域,其使用了一种软包锂电池制作设备,该设备包括工作台、匚形架、冲压放料装置以及热封装置。本发明通过冲压放料装置和热封装置在对铝塑膜进行冲压后自动放料与热封,减少了人工的干预,实现了降低操作人员的劳动强度的效果；通过冲压放料装置和热封装置在软包锂电池制作的过程中减少了人工辅助干预以及过程的衔接,提高了自动化程度,节省了生产过程中必要的工作时间,实现了在连续生产中的提高工作效率的效果。(The invention relates to a manufacturing method of a soft package lithium battery, which relates to the technical field of lithium ion battery production processes, and uses manufacturing equipment of the soft package lithium battery, wherein the manufacturing equipment comprises a workbench, an Contraband-shaped frame, a stamping and discharging device and a heat sealing device. According to the invention, the aluminum plastic film is automatically discharged and thermally sealed after being punched by the punching discharging device and the heat sealing device, so that manual intervention is reduced, and the effect of reducing the labor intensity of operators is realized; the manual assistance intervention and the process connection are reduced in the process of manufacturing the soft package lithium battery through the stamping and discharging device and the heat sealing device, the automation degree is improved, the necessary working time in the production process is saved, and the effect of improving the working efficiency in continuous production is realized.)

1. A manufacturing method of a soft package lithium battery is characterized by comprising the following steps: the soft package lithium battery manufacturing equipment is used, and comprises a workbench (1), a v-shaped frame (2), a stamping and discharging device (3) and a heat sealing device (4), wherein the workbench (1) is arranged on the ground, the Contraband-shaped frame (2) is arranged on the workbench (1), and an opening of the Contraband-shaped frame is arranged downwards;

the punching and discharging device (3) comprises a pit punching block (31), spring rods (32), an installation block (33), a clamping block (34), a punching mechanism (35) and a moving mechanism (36), wherein the pit punching block (31) is arranged on the workbench (1) and is positioned below the Contraband-shaped frame (2), the punching mechanism (35) is arranged on the inner side wall, close to the workbench (1), of the Contraband-shaped frame (2), the installation block (33) is arranged below the punching mechanism (35) and is connected with the punching mechanism (35) through the spring rods (32), and the clamping block (34) slides on one side, far away from the workbench (1), of the installation block (33) and is connected with the installation block (33) through the moving mechanism (36);

the heat sealing device (4) comprises a hot pressing block (41) and a turnover mechanism (42), one end of the hot pressing block (41) is hinged with one end of the pit punching block (31), one end of the turnover mechanism (42) is rotatably connected with the hot pressing block (41), and the other end of the turnover mechanism is rotatably connected with the pit punching block (31);

the process for manufacturing the soft package lithium battery by using the equipment specifically comprises the following steps:

s1: equipment inspection, namely inspecting the running of the equipment before starting the soft package lithium battery manufacturing equipment;

s2: preparing materials, namely manually placing a battery block with a package on a clamping block (34) and placing an aluminum plastic film on a pit punching block (31);

s3: punching and discharging, namely, firstly extruding and clamping the aluminum-plastic film through a punching and discharging device (3), then punching, and finally placing the battery block in a punching pit of the aluminum-plastic film;

s4: the mounting block (33) is far away from the aluminum-plastic film through a stamping mechanism (35), then the aluminum-plastic film is folded and extruded through a turnover mechanism (42), hot-press sealing is carried out under the action of a hot-press block (41), and the soft package lithium battery is taken out manually;

s5: and (4) performing batch operation, repeating S2-S4, and collecting and stacking the manufactured soft package lithium batteries.

2. The method for manufacturing the soft package lithium battery according to claim 1, wherein the method comprises the following steps: punching press mechanism (35) are including punching press piece (351), pneumatic cylinder (352), mounting panel (353) and flexible groove (354), Contraband shape frame (2) one side of keeping away from ground is located in pneumatic cylinder (352), and the output wears to locate Contraband shape frame (2) and sets up downwards, the output of pneumatic cylinder (352) is located in mounting panel (353), one side that mounting panel (353) are close to ground is connected with the one end that workstation (1) was kept away from in a plurality of spring beam (32), and is equipped with punching press piece (351), runs through on mounting block (33) and sets up flexible groove (354) that supply punching press piece (351) to wear to establish.

3. The method for manufacturing the soft package lithium battery according to claim 1, wherein the method comprises the following steps: moving mechanism (36) are including shifting chute (361), shifting block (362), lead screw (363) and moving motor (364), and a plurality of shifting chute (361) symmetry is seted up in one side that workstation (1) was kept away from in installation piece (33), and spacing sliding has in shifting chute (361) shifting block (362), and shifting block (362) are connected with screens piece (34) and are set up, lead screw (363) rotate locate in shifting chute (361), and wear to establish and screw-thread fit sets up in shifting block (362), the one end of installation piece (33) is located in moving motor (364), and the output shaft rotates and wears to locate installation piece (33) and lead screw (363) coaxial coupling.

4. The method for manufacturing the soft package lithium battery according to claim 2, wherein the method comprises the following steps: tilting mechanism (42) include connecting rod (421), lower connecting rod (422) and upset cylinder (423) on, the one end of going up connecting rod (421) is articulated mutually with the one end of lower connecting rod (422) and is set up, goes up connecting rod (421) and keeps away from one side rotation connection of articulated one end and hot briquetting (41) of department, and one side rotation connection of articulated one end and punching press piece (351) is kept away from in lower connecting rod (422), upset cylinder (423) are articulated to be set up on last connecting rod (421), and the output sets up with lower connecting rod (422) is articulated mutually.

5. The method for manufacturing the soft package lithium battery according to claim 1, wherein the method comprises the following steps: still including a yard feed cylinder (5) and bracing piece (6), card position block (34) top setting is located to a yard feed cylinder (5), and through a plurality of bracing piece (6) are connected with installation piece (33) and are set up.

6. The method for manufacturing the soft package lithium battery according to claim 1, wherein the method comprises the following steps: the automatic lifting device is characterized by further comprising a supporting mechanism (7), wherein the supporting mechanism (7) comprises a supporting frame (71), a supporting hydraulic cylinder (72), a supporting block (73) and a supporting spring rod (74), the supporting frame (71) is arranged on the workbench (1), the supporting hydraulic cylinder (72) is arranged on the supporting frame (71), the output end of the supporting hydraulic cylinder (71) is arranged downwards in a penetrating mode, the supporting block (73) is arranged at the output end of the supporting hydraulic cylinder (72), and the supporting spring rod (74) is connected with the mounting block (33) in a plurality of modes.

Technical Field

The invention relates to the technical field of lithium ion battery production processes, in particular to a manufacturing method of a soft package lithium battery.

Background

The soft package lithium cell is only one deck polymer shell on the lithium ion battery cover, structurally adopts the compound membrane packing of plastic-aluminum, and soft package battery can only bloate the gas at most and split under the condition that takes place the potential safety hazard, so has advantages such as the security performance is good, light in weight, capacious, internal resistance is little and the design is nimble, and soft package battery encapsulation mainly divide into top seal, side seal and end seal process.

At present, in the process of top sealing and side sealing of the soft package lithium battery, the aluminum-plastic composite film is firstly punched in an artificial mode, then a battery block is placed in a punching pit, and finally the soft package battery is subjected to top sealing and side sealing under the action of a punching machine.

The above prior art solutions have the following drawbacks: a large amount of manual intervention is needed in the manufacturing process, and the working steps are more, so that the labor intensity is high; each step needs manual connection, the manual intervention degree is high, the automation degree is low, and the working efficiency is difficult to improve in the continuous production process.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a method for manufacturing a soft package lithium battery, which has the effects of reducing the labor intensity of operators and improving the working efficiency in continuous production in the process of manufacturing the soft package lithium battery.

The above object of the present invention is achieved by the following technical solutions:

a manufacturing method of a soft package lithium battery uses manufacturing equipment of the soft package lithium battery, and the equipment comprises a workbench, an Contraband-shaped frame, a stamping and placing device and a heat sealing device, wherein the workbench is arranged on the ground, and the 21274is arranged on the workbench in a shape of a bracket with a downward opening;

the punching and discharging device comprises a pit punching block, spring rods, an installation block, a clamping block, a punching mechanism and a moving mechanism, wherein the pit punching block is arranged on the workbench and is positioned below the Contraband-shaped frame, the punching mechanism is arranged on the inner side wall of the Contraband-shaped frame close to the workbench, the installation block is arranged below the punching mechanism and is connected with the punching mechanism through a plurality of spring rods, and the clamping block slides to one side of the installation block, which is far away from the workbench, and is connected with the installation block through the moving mechanism;

the heat sealing device comprises a hot pressing block and a turnover mechanism, one end of the hot pressing block is hinged with one end of the pit punching block, one end of the turnover mechanism is rotatably connected with the hot pressing block, and the other end of the turnover mechanism is rotatably connected with the pit punching block;

the process for manufacturing the soft package lithium battery by using the equipment specifically comprises the following steps:

s1: equipment inspection, namely inspecting the running of the equipment before starting the soft package lithium battery manufacturing equipment;

s2: preparing materials, namely manually placing a battery block with a package on a clamping block, and placing an aluminum-plastic film on a pit punching block;

s3: punching and discharging, namely extruding and clamping the aluminum-plastic film through a punching and discharging device, then punching, and finally placing the battery block in a punching pit of the aluminum-plastic film;

s4: folding and heat-sealing, namely enabling the mounting block to be far away from the aluminum-plastic film through a punching mechanism, then folding and extruding the aluminum-plastic film through a turnover mechanism, carrying out heat-pressure sealing under the action of a hot-pressing block, and manually taking out the soft package lithium battery;

s5: and (4) performing batch operation, repeating S2-S4, and collecting and stacking the manufactured soft package lithium batteries.

As a preferred technical scheme, the stamping mechanism comprises a stamping block, a hydraulic cylinder, a mounting plate and a telescopic groove, the hydraulic cylinder is arranged at 21274, the side, away from the ground, of the shaped frame, the output end of the shaped frame penetrates through the 21274, the shaped frame is arranged downwards, the mounting plate is arranged at the output end of the hydraulic cylinder, one side, close to the ground, of the mounting plate is connected with one end, away from the workbench, of the spring rods, the stamping block is arranged, and the telescopic groove for the stamping block to penetrate through is formed in the mounting block in a penetrating mode.

As a preferred technical scheme, the moving mechanism comprises moving grooves, sliding blocks, a screw rod and a moving motor, the moving grooves are symmetrically formed in one side, away from the workbench, of the mounting block, the sliding blocks are arranged in the moving grooves in a limiting sliding mode and connected with the clamping blocks, the screw rod is rotatably arranged in the moving grooves and penetrates through the sliding blocks in a threaded matching mode, the moving motor is arranged at one end of the mounting block, and the output shaft is rotatably arranged on the mounting block in a penetrating mode and is coaxially connected with the screw rod.

As a preferred technical scheme, the turnover mechanism comprises an upper connecting rod, a lower connecting rod and a turnover cylinder, one end of the upper connecting rod is hinged with one end of the lower connecting rod, one end of the upper connecting rod, which is far away from the hinged part, is rotatably connected with one side of the hot-pressing block, one end of the lower connecting rod, which is far away from the hinged part, is rotatably connected with one side of the punching block, and the turnover cylinder is hinged on the upper connecting rod, and the output end of the turnover cylinder is hinged with the lower connecting rod.

As the preferred technical scheme, the stacking device further comprises a stacking cylinder and supporting rods, wherein the stacking cylinder is arranged above the clamping block and is connected with the mounting block through the supporting rods.

As a preferred technical scheme of the invention, the device further comprises a supporting mechanism, wherein the supporting mechanism comprises a supporting frame, a supporting hydraulic cylinder, a supporting block and a supporting spring rod, the supporting frame is arranged on the workbench, the supporting hydraulic cylinder is arranged on the supporting frame, the output end of the supporting hydraulic cylinder penetrates through the supporting frame and is arranged downwards, and the supporting block is arranged at the output end of the supporting hydraulic cylinder and is connected with the mounting block through a plurality of supporting spring rods.

In summary, the invention includes at least one of the following beneficial technical effects:

1. according to the invention, the aluminum plastic film is automatically discharged and thermally sealed after being punched by the punching discharging device and the heat sealing device, so that manual intervention is reduced, and the effect of reducing the labor intensity of operators is realized;

2. according to the invention, manual auxiliary intervention and process connection are reduced in the process of manufacturing the soft package lithium battery through the stamping and discharging device and the heat sealing device, so that the automation degree is improved, the necessary working time in the production process is saved, and the effect of improving the working efficiency in continuous production is realized;

3. according to the invention, through the matching of the stacking barrel, the clamping block and the moving mechanism, a plurality of battery blocks can be placed for automatic operation, so that the manual intervention is reduced, the process flow is simplified, and the effect of reducing the labor intensity of operators is further realized.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Fig. 2 is a schematic diagram of the main structure of the present invention.

Fig. 3 is a cross-sectional view of a punch discharging device.

Fig. 4 is a schematic view of the structure of the heat-seal device.

Fig. 5 is a schematic structural view of the region a in fig. 4.

Fig. 6 is a schematic structural view of the knock out barrel.

Fig. 7 is a schematic structural diagram of the capture block and the moving mechanism.

Fig. 8 is a schematic structural diagram of a soft-packed lithium battery.

In the figure, 1, a workbench; 2. contraband form rack; 3. punching a discharging device; 4. a heat sealing device; 31. punching a pit block; 32. a spring lever; 33. mounting blocks; 34. a bit block; 35. a stamping mechanism; 36. a moving mechanism; 41. hot pressing blocks; 42. a turnover mechanism; 351. stamping the blocks; 352. a hydraulic cylinder; 353. mounting a plate; 354. a telescopic groove; 361. a moving groove; 362. a sliding block; 363. a screw rod; 364. a moving motor; 421. an upper connecting rod; 422. a lower connecting rod; 423. turning over the air cylinder; 5. stacking the material barrel; 6. a support bar; 7. a support mechanism; 71. a support frame; 72. a support hydraulic cylinder; 73. a support block; 74. supporting the spring rod.

Detailed Description

The present invention is described in further detail below with reference to figures 1-8.

The invention discloses a manufacturing method of a soft package lithium battery, which uses manufacturing equipment of the soft package lithium battery, and the equipment comprises a workbench 1, a 21274, a shape frame 2, a stamping and discharging device 3 and a heat sealing device 4, wherein the workbench 1 is arranged on the ground, the Contraband shape frame 2 is arranged on the workbench 1, the opening of the workbench is arranged downwards so as to be used for installing the stamping and discharging device 3, and the heat sealing device 4 is arranged on the workbench 1.

The punching and discharging device 3 comprises a pit punching block 31, spring rods 32, an installation block 33, a clamping block 34, a punching mechanism 35 and a moving mechanism 36, wherein the pit punching block 31 is arranged on the workbench 1 and is positioned below the Contraband-shaped frame 2, the punching mechanism 35 is arranged on the inner side wall of the Contraband-shaped frame 2 close to the workbench 1, the installation block 33 is arranged below the punching mechanism 35 and is connected with the punching mechanism 35 through the spring rods 32, and the clamping block 34 slides on one side of the installation block 33 far away from the workbench 1 and is connected with the installation block 33 through the moving mechanism 36; in this embodiment, the punching block 31 is a rectangular block provided with a rectangular groove, the caliber of the rectangular block is slightly larger than that of the battery block, the depth of the rectangular block is equal to the thickness of the battery block, and the rectangular block is located under the punching block 351, under the action of the punching mechanism 35, firstly, the mounting block 33 extrudes the aluminum-plastic film, then, due to the action of the spring rod 32, the punching block 351 continuously descends, the punching hole for placing the battery block is punched on the aluminum-plastic film placed on the punching block 31, and under the action of the moving mechanism 36, the clamping block 34 drives the battery block to fall in the punching hole of the aluminum-plastic film.

The heat sealing device 4 comprises a hot pressing block 41 and a turnover mechanism 42, wherein one end of the hot pressing block 41 is hinged with one end of the pit punching block 31, one end of the turnover mechanism 42 is rotatably connected with the hot pressing block 41, and the other end of the turnover mechanism 42 is rotatably connected with the pit punching block 31; in this embodiment, after the battery block falls into the plastic-aluminum film punching pit, hydraulic cylinder 352 is reversely started, so that mounting block 33 is far away from the plastic-aluminum film and returns to the initial position, and turnover mechanism 42 turns hot pressing block 41 hinged to punching pit block 31 to fold the plastic-aluminum film, so that the punching pit on the plastic-aluminum film is completely covered, and meanwhile, under the continuous driving of turnover mechanism 42, hot pressing block 41 extrudes with punching pit block 31, and at this time, heated hot pressing block 41 carries out heat sealing on the plastic-aluminum film at the edge of the punching pit, thereby realizing automatic punching pit discharging and heat sealing operations, simplifying manual operations, and reducing the manual intervention degree and labor intensity of work.

The stamping mechanism 35 comprises a stamping block 351, a hydraulic cylinder 352, a mounting plate 353 and a telescopic groove 354, the hydraulic cylinder 352 is arranged on one side of the Contraband-shaped frame 2 far away from the ground, the output end of the hydraulic cylinder 352 is arranged downwards in a penetrating manner at Contraband-shaped frame 2, the mounting plate 353 is arranged at the output end of the hydraulic cylinder 352, one side of the mounting plate 353 close to the ground is connected with one ends of the spring rods 32 far away from the workbench 1, the stamping block 351 is arranged, the stamping block 351 and the pit stamping block 31 are arranged in a matching manner, and a gap between the two is just slightly larger than the thickness of the aluminum plastic film in; the mounting block 33 is provided with a telescopic groove 354 through which the punching block 351 passes; in this embodiment, the hydraulic cylinder 352 drives the ram block 351 to descend, and the mounting block 33 is also caused to descend and extrude the aluminum-plastic film through the spring rod 32, and the higher the extrusion degree of the aluminum-plastic film by the mounting block 33 is as the ram block 351 extends into the telescopic slot 354.

The moving mechanism 36 comprises moving grooves 361, sliding blocks 362, a screw rod 363 and a moving motor 364, wherein the moving grooves 361 are symmetrically arranged on one side of the mounting block 33 far away from the workbench 1, the sliding blocks 362 are limited and slid in the moving grooves 361, the sliding blocks 362 are connected with the clamping block 34, the screw rod 363 is rotatably arranged in the moving grooves 361 and is arranged in a penetrating and threaded manner in the sliding blocks 362, the moving motor 364 is arranged at one end of the mounting block 33, and an output shaft is rotatably arranged in the mounting block 33 and is coaxially connected with the screw rod 363; in this embodiment, the screw rod 363 can be disposed in the moving grooves 361 on both sides, and two motors are installed, so as to reduce the resistance in the moving process, and make the moving more stable, the screw rod 363 rotates through the moving motor 364, the sliding block 362 moves through the screw-thread fit, the clamping block 34 drives the battery block to move to the upper side of the telescopic groove 354, and the battery block passes through the telescopic groove 354 and falls into the punching pit.

The turnover mechanism 42 comprises an upper connecting rod 421, a lower connecting rod 422 and a turnover cylinder 423, wherein one end of the upper connecting rod 421 is hinged to one end of the lower connecting rod 422, one end of the upper connecting rod 421, which is far away from the hinged position, is rotatably connected to one side of the hot pressing block 41, one end of the lower connecting rod 422, which is far away from the hinged position, is rotatably connected to one side of the punching block 351, and the turnover cylinder 423 is hinged to the upper connecting rod 421, and the output end of the turnover cylinder is hinged to the lower connecting rod 422; in the present embodiment, two hinged positions of the flipping cylinder 423 and the upper and lower connecting rods 421 and 422 are close to the middle portions of the upper and lower connecting rods 421 and 422, the upper and lower connecting rods 421 and 422 are equal in length, and when the flipping cylinder 423 is extended, the upper and lower connecting rods 421 and 422 are far away from each other, so that the hot-pressing block 41 is far away from the pit punching block 31, and vice versa.

The stacking device also comprises a stacking barrel 5 and a support rod 6, wherein the stacking barrel 5 is arranged above the clamping block 34 and is connected with the mounting block 33 through the support rods 6; in this embodiment, the stacking barrel 5 is used for stacking a certain number of battery blocks, and does not need to be manually placed at each time, when the clamping block 34 is close to the stamping mechanism 35, the clamping block 34 is still located below the stacking barrel 5 to prevent the battery blocks from falling on the mounting block 33, when the battery blocks return to the initial position, the battery blocks fall into the clamping block 34 and sequentially reciprocate, so that the working strength of an operator is further reduced, and the working steps are simplified.

The support mechanism 7 comprises a support frame 71, a support hydraulic cylinder 72, a support block 73 and support spring rods 74, wherein the support frame 71 is arranged on the workbench 1, the support hydraulic cylinder 72 is arranged on the support frame 71, the output end of the support hydraulic cylinder is arranged downwards by penetrating through the support frame 71, and the support block 73 is arranged at the output end of the support hydraulic cylinder 72 and is connected with the mounting block 33 through a plurality of support spring rods 74; in the embodiment, the supporting hydraulic cylinder 72 and the hydraulic cylinder 352, the supporting frame 71 and the support 21274, the shape frame 2, the supporting spring rod 74 and the spring rod 32 are the same, and the supporting hydraulic cylinder 72 and the hydraulic cylinder 352 are simultaneously started and closed during the working process, and play a role of auxiliary support when the number of battery blocks in the stacking cylinder 5 is large.

The process for manufacturing the soft package lithium battery by using the equipment specifically comprises the following steps:

s1: equipment inspection, namely inspecting the running of the equipment before starting the soft package lithium battery manufacturing equipment;

s2: preparing materials, namely manually placing a battery block with a package on the clamping block 34 and placing an aluminum-plastic film on the pit punching block 31;

s3: punching and discharging, namely extruding and clamping the aluminum-plastic film through a punching and discharging device 3, then punching, and finally placing the battery block in a punching pit of the aluminum-plastic film;

s4: folding and heat-sealing, namely enabling the mounting block 33 to be far away from the aluminum-plastic film through the punching mechanism 35, then folding and extruding the aluminum-plastic film through the turnover mechanism 42, carrying out heat-pressure sealing under the action of the hot-pressing block 41, and manually taking out the soft package lithium battery;

s5: and (4) performing batch operation, repeating S2-S4, and collecting and stacking the manufactured soft package lithium batteries.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.