Automobile lithium ion battery lamination device

Abstract

The invention relates to the technical field of battery lamination devices, and discloses an automobile lithium ion battery lamination device which comprises a main body assembly, a shell, a diaphragm arranged in the shell, a lifting platform arranged in the shell, a lifting mechanism fixed to the bottom of the shell, feeding mechanisms arranged on the two sides of the shell, and feeding suction cups arranged on the tops of the feeding mechanisms. A feeding hole is formed in the feeding mechanism; the folding assemblies are arranged on the two sides of the shell. The device has the beneficial effects that the traditional intermittent lamination logic is broken through, and the lamination efficiency is remarkably improved: the lamination is driven by two rotating wheels which rotate reversely and unidirectionally, the left-right reciprocating motion of a traditional lamination table or a lamination mechanism is replaced, the intermittent process of'moving-stopping-positioning-stacking-re-moving 'is thoroughly abandoned, the continuous lamination is realized, the production efficiency is improved, and the production cost is reduced. In the continuous one-way rotation process of the rotating wheel, the folding rod can complete diaphragm folding and obstacle avoidance storage in a self-adaptive mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of battery lamination device, in particular to a kind of automobile lithium ion battery lamination device. BACKGROUND

[0002] With the vigorous development of new energy automobile industry, the market puts forward more stringent requirements on the production efficiency and energy density of automobile lithium ion battery. Laminated cell has become the core structure selection of high-end power battery due to its high electrode utilization, excellent cycle stability and high volume energy density, and the running efficiency of lamination device as the key equipment of cell production directly determines the battery production scale.

[0003] The core lamination mode of the current mainstream automatic lamination device mainly relies on the reciprocating movement of the lamination table left and right or the overall transverse displacement of the lamination mechanism. This type of scheme has inherent technical limitations: the lamination process needs to strictly follow the intermittent cycle process of "moving-stop-positioning-laying-again moving", and needs to stop after each displacement to wait for the alignment of the pole piece and the diaphragm. Not only a lot of non-productive time loss is generated, but also inertia impact is caused due to frequent start and stop, resulting in positioning accuracy fluctuation, which further limits the efficiency improvement. At present, the mainstream lamination efficiency in the industry is generally less than 0.5s / piece, which is difficult to meet the production capacity demand of large-scale production. SUMMARY

[0004] In view of the above and / or existing problems in the automobile lithium ion battery lamination device, the present application is proposed.

[0005] Therefore, the problem to be solved by the present application is that the intermittent process efficiency of the traditional lamination device is difficult to break through.

[0006] To solve the above technical problems, the present application provides the following technical scheme: an automobile lithium ion battery lamination device, comprising a main component, a shell is arranged in the main component, a diaphragm is arranged in the shell, a lifting table is arranged in the shell, a lifting mechanism is fixed at the bottom of the shell, a feeding mechanism is arranged on both sides of the shell, a feeding suction disc is arranged on the top of the feeding mechanism, and a feeding port is arranged in the feeding mechanism. A folding assembly is arranged on both sides of the shell, comprising a folding piece arranged on both sides of the shell, a support seat is arranged on the folding piece, a rotating shaft is rotatably connected in the support seat, a rotating wheel is fixed on the surface of the rotating shaft, a sliding block is slidably arranged in the rotating wheel, an extrusion spring is fixed on one side of the sliding block, a rack is fixed in the rotating wheel, a rotating rod is rotatably connected in the sliding block, a gear is fixed on the surface of the rotating rod, the gear is engaged with the rack, a sleeve rod is fixed on one side of the sliding block, a folding rod is slidably arranged in the sleeve rod, and the end of the rotating rod in the folding rod is rotatably connected with the folding rod through thread.

[0007] As a preferred scheme of the automobile lithium ion battery laminated device, the folding assembly further comprises a positioning member arranged on the surface of the rotating wheel, the positioning member comprises a plug sliding in the rotating wheel, a clamping groove is arranged in the sliding block, and the plug is inserted into the clamping groove.

[0008] As a preferred scheme of the automobile lithium ion battery laminated device, the positioning member further comprises a supporting rod fixed in the rotating wheel, a swing rod is hinged on the surface of the supporting rod, a tension spring is fixed in the swing rod, the other end of the tension spring is fixed on the inner wall of the rotating wheel, a connecting rod is hinged in the swing rod, and the other end of the connecting rod is hinged in the plug.

[0009] As a preferred scheme of the automobile lithium ion battery laminated device, the positioning member further comprises a supporting arm fixed on the surface of the supporting seat, an extrusion block is fixed on the other end of the supporting arm, an extrusion wheel is rotatably connected in the swing rod, and an extrusion surface is arranged on the extrusion block.

[0010] As a preferred scheme of the automobile lithium ion battery laminated device, the folding assembly further comprises a driving member arranged on one side of the rotating wheel, the driving member comprises a bevel gear fixed on the surface of the rotating shaft, a first transmission shaft is arranged on one side of the rotating shaft, the bevel gears are fixed on both ends of the first transmission shaft, a driving shaft is arranged on one side of the first transmission shaft, the bevel gears are fixed on both ends of the driving shaft, a second transmission shaft is arranged on one side of the driving shaft, and the bevel gears are fixed on both ends of the second transmission shaft.

[0011] As a preferred scheme of the automobile lithium ion battery laminated device, the folding assembly further comprises a clamping member arranged on the shell, the clamping member comprises a supporting shell fixed on the bottom of the shell, a first connecting rod is hinged in the supporting shell, and a first pressing plate is hinged on the other end of the first connecting rod.

[0012] As a preferred scheme of the automobile lithium ion battery laminated device, the clamping member further comprises a first push rod hinged in the first pressing plate, a first air cylinder is fixed on the other end of the first push rod, a first rotating seat is fixed on the tail of the first air cylinder, and the first rotating seat is rotatably connected in the supporting shell.

[0013] As a preferred scheme of the automobile lithium ion battery laminated device, the clamping member further comprises a second connecting rod hinged in the first pressing plate, and a second pressing plate is hinged on the other end of the second connecting rod.

[0014] As a preferred scheme of the automobile lithium ion battery laminating device, the clamping member further comprises a second push rod hinged to the second pressing plate, a second cylinder is fixed to the other end of the second push rod, a second rotating seat is fixed to the tail of the second cylinder, and the second rotating seat is rotationally connected to the first pressing plate.

[0015] As a preferred scheme of the automobile lithium ion battery laminating device, the number of the clamping members is two, and the clamping members are symmetrically arranged in the housing.

[0016] The automobile lithium ion battery laminating device has the following advantages: the traditional intermittent laminating logic is broken, and the laminating efficiency is significantly improved; the two reverse one-way rotating rotating wheels drive the laminating, replace the left-right reciprocating movement of the traditional laminating table or laminating mechanism, completely abandon the intermittent process of "moving-stopping-positioning-laminating-moving again", realize continuous laminating, the folding rod can adaptively complete the folding of the diaphragm and the obstacle avoidance storage in the process of continuous one-way rotation of the rotating wheel, and the non-productive time loss is greatly reduced without waiting for alignment during shutdown, the laminating efficiency breaks through the industry limitation of 0.5s / piece, and the capacity demand of large-scale production is met. The design overturns the conventional "reciprocating laminating" idea in the industry, and realizes efficiency leapfrogging through "continuous rotation transmission".

[0017] The inertia impact caused by frequent start-stop of the traditional device is eliminated, and the laminating positioning accuracy is improved; the rotating wheel keeps one-way rotation without reciprocating start-stop action, and the interference of inertia impact on the laminating process is completely eliminated from the transmission root; the diaphragm folding and the pole piece placement process always keep stable stress through the cooperative positioning of the double pressing plates in the oblique symmetric layout, the pole piece and the diaphragm are effectively prevented from deviating, and the positioning accuracy is significantly improved compared with the traditional device. The effect is not realized through conventional means such as optimizing the accuracy of the driving motor or increasing the sensor, but is realized by relying on the cooperative design of the transmission structure innovation and the positioning structure, and the accuracy fluctuation problem is solved in essence. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them: Figure 1 It is a structural diagram of the automobile lithium ion battery laminating device.

[0019] Figure 2 It is a structural diagram of the automobile lithium ion battery laminating device. Figure 1 It is a local enlarged structural diagram of B in the middle.

[0020] Figure 3 Partial structure diagram of the automobile lithium ion battery laminated device.

[0021] Figure 4 Partial structure diagram of the automobile lithium ion battery laminated device.

[0022] Figure 5 Partial structure diagram of the automobile lithium ion battery laminated device. Figure 4 Partial structure diagram of the automobile lithium ion battery laminated device.

[0023] Figure 6 Partial structure diagram of the automobile lithium ion battery laminated device.

[0024] Figure 7 Partial structure diagram of the automobile lithium ion battery laminated device. Figure 6 Partial structure diagram of the automobile lithium ion battery laminated device.

[0025] Figure 8 Partial structure diagram of the automobile lithium ion battery laminated device. Figure 6 Partial structure diagram of the automobile lithium ion battery laminated device.

[0026] Figure 9 Partial structure diagram of the automobile lithium ion battery laminated device.

[0027] Figure 10 Partial structure diagram of the automobile lithium ion battery laminated device.

[0028] Figure 11 Partial structure diagram of the automobile lithium ion battery laminated device.

[0029] Figure 12 Partial structure diagram of the automobile lithium ion battery laminated device. Figure 11 Partial structure diagram of the automobile lithium ion battery laminated device.

[0030] Figure 13 Partial structure diagram of the automobile lithium ion battery laminated device.

[0031] Figure 14 Partial structure diagram of the automobile lithium ion battery laminated device. Figure 13 Partial structure diagram of the automobile lithium ion battery laminated device.

[0032] As shown in the figure, the main body assembly 1, the shell 11, the diaphragm 12, the lifting platform 13, the lifting mechanism 14, the feeding mechanism 15, the suction cup 16, the feeding port 15-1, the folding assembly 2, the folding piece 21, the supporting base 211, the rotating shaft 212, the rotating wheel 213, the sliding block 214, the extrusion spring 215, the rack 216, the rotating rod 217, the gear 218, the sleeve rod 219, the folding rod 2110, the positioning piece 22, the bolt 221, the clamping groove 214-1, the supporting rod 222, the swing rod 223, the tension spring 224, the connecting rod 225, the supporting arm 226, the extrusion block 227, the extrusion surface 227-1, the extrusion wheel 228, the driving piece 23, the bevel gear 231, the first transmission shaft 232, the driving shaft 233, the second transmission shaft 234, the clamping piece 24, the supporting shell 241, the first connecting rod 242, the first pressing plate 243, the first push rod 244, the first air cylinder 245, the first rotating base 246, the second connecting rod 247, the second pressing plate 248, the second push rod 249, the second air cylinder 2410, and the second rotating base 2411. DETAILED DESCRIPTION

[0033] In order to make the above objectives, characteristics and advantages of the present application more apparent, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0034] In the following description, a lot of specific details are set forth in order to facilitate a full understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0035] Secondly, the "one embodiment" or "embodiment" referred to herein means that the specific features, structures or characteristics can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an independent or selective embodiment that excludes other embodiments.

[0036] Embodiment 1 Reference Figure 1 , Figure 2 , Figures 4-7 and Figures 9-12For the first embodiment of the present application, the embodiment provides a car lithium ion battery laminating device, the car lithium ion battery laminating device comprises a main body assembly 1, including a shell 11, a diaphragm 12 is arranged in the shell 11, the diaphragm 12 is used for isolating the positive and negative pole pieces of the battery, a lifting platform 13 is arranged in the shell 11, the lifting platform 13 is provided with a clamping plate on the surface, for clamping the end of the diaphragm 12, so that the diaphragm 12 will not be loose when being folded, the bottom of the shell 11 is fixed with a lifting mechanism 14, the lifting mechanism 14 is used for lifting and moving the lifting platform 13, the lifting mechanism 14 adopts the prior art, with the increase of the number of diaphragm 12 and positive and negative pole pieces, the lifting mechanism 14 drives the lifting platform 13 to move downward, so that the height of the pole piece placed on the top of the diaphragm 12 will not change, the shell 11 is provided with a feeding mechanism 15 on both sides, the feeding mechanism 15 is provided with a feeding suction cup 16 on the top, the feeding suction cup 16 is used for feeding the pole piece in the feeding mechanism 15, so that the pole piece moves to the diaphragm 12, the feeding mechanism 15 in the shell 11 is provided with a feeding inlet 15-1, the feeding inlet 15-1 is used for adding the pole piece in the feeding mechanism 15, so as to ensure that the feeding mechanism 15 supplies the pole piece to the shell 11, the feeding mechanism 15 and the suction cup 16 are prior art, and the working principle thereof should be clear to those skilled in the art, and details are not described here, the suction cup 16 is provided with a driving mechanism on one side, for driving the suction cup 16 to move, so as to feed the pole piece, and the driving mechanism is not shown in the figure.

[0037] The folding assembly 2 is arranged on both sides of the shell 11, and includes folding pieces 21 arranged on both sides of the shell 11. The number of the folding pieces 21 is two, and the folding pieces 21 are arranged in an oblique symmetry. The folding pieces 21 are used for folding the diaphragm 12. The folding piece 21 includes a support seat 211 fixedly arranged. The support seat 211 is rotationally connected with a rotating shaft 212 in the inside. The rotating shaft 212 is fixedly provided with a rotating wheel 213 on the surface. The number of the rotating wheels 213 is two, and the rotating directions of the two rotating wheels 213 are opposite. The rotating wheel 213 is slidably provided with a sliding block 214. The sliding block 214 is fixedly provided with an extrusion spring 215 on one side. The extrusion spring 215 is used for pushing the sliding block 214. The rotating wheel 213 is fixedly provided with a rack 216 in the inside. The sliding block 214 is rotationally connected with a rotating rod 217 in the inside. The rotating rod 217 is fixedly provided with a gear 218 on the surface. The gear 218 is engaged with the rack 216. The sliding block 214 is fixedly provided with a sleeve rod 219 on one side. The sleeve rod 219 is slidably provided with a folding rod 2110 in the inside. The folding rod 2110 is a hexagonal prism in the inside of the sleeve rod 219, so that the folding rod 2110 cannot relatively rotate in the sleeve rod 219. The end of the rotating rod 217 in the folding rod 2110 is rotationally connected with the folding rod 2110 through a thread. When the rotating rod 217 rotates in the sliding block 214, the folding rod 2110 can be driven to stretch or contract in the sleeve rod 219 through the thread. In the initial state, the extrusion spring 215 has enough supporting force, so that the folding rod 2110 can push and press the diaphragm 12.

[0038] The two sliding blocks 214, the extrusion spring 215, the rack 216, the rotating rod 217, the gear 218, the sleeve rod 219 and the folding rod 2110 are arranged on each rotating wheel 213, and the angle between the two rotating wheels 213 is 180 degrees.

[0039] When the diaphragm 12 is folded, the two rotating wheels 213 are reversely rotated at the same time. The rotating wheel 213 drives one of the folding rods 2110 to push the diaphragm 12, so that the diaphragm 12 is folded. At this time, the diaphragm 12 can be attached to the surface of the lifting platform 13. At this time, the folding rod 2110 is blocked, and cannot continue to rotate with the rotating wheel 213. At this time, the diaphragm 12 is attached to the surface of the lifting platform 13, so that the suction cup 16 can move the pole piece in the feeding mechanism 15 to the diaphragm 12.

[0040] With the rotating wheel 213 continuing to rotate, the sliding of the sliding block 214 on one side of the folding rod 2110 in the rotating wheel 213 is realized by the pushing of the sleeve rod 219, at this time, the compression of the compression spring 215 is realized, and at the same time the sliding of the sliding block 214, the synchronous movement of the gear 218 is realized, so that the rack 216 drives the gear 218 to rotate, thereby making the gear 218 drive the rotating rod 217 to rotate, at this time, the rotating rod 217 can drive the folding rod 2110 to move into the sleeve rod 219, with the rotating wheel 213 continuing to rotate, the folding rod 2110 will move into the sleeve rod 219, at this time, the sleeve rod 219 can continue to move from the gap of the shell 11, so that the rotating wheel 213 can continue to drive the sleeve rod 219 to move.

[0041] When the folding rod 2110 presses the diaphragm 12 to the surface of the lifting platform 13, the other folding rod 2110 on the other rotating wheel 213 extrudes the other side of the diaphragm 12, with the rotation of the rotating wheel 213, the folding rod 2110 folds the diaphragm 12 to the other direction, when the diaphragm 12 is folded to the horizontal position again, another kind of pole piece can be placed on the diaphragm 12, in this way, with the rotation of the rotating wheel 213, the positive pole piece and the negative pole piece are placed on the two sides of the diaphragm 12 respectively.

[0042] Embodiment 2 Referring to Figures 1-3 , Figure 5 , Figure 6 and Figure 8 , this embodiment is based on the previous embodiment.

[0043] Specifically, the folding assembly 2 further comprises a positioning piece 22 arranged on the surface of the rotating wheel 213, the positioning piece 22 comprises a latch 221 sliding in the rotating wheel 213, the sliding block 214 is provided with a clamping groove 214-1, the latch 221 can be inserted into the clamping groove 214-1, when the sliding block 214 moves in the rotating wheel 213 and extrudes the compression spring 215, the sliding block 214 can extrude the inclined surface at the end of the latch 221, so that the clamping groove 214-1 moves to the end of the latch 221, at this time, the latch 221 can be inserted into the clamping groove 214-1, thereby limiting the sliding block 214, so that the sliding block 214 cannot be reset and moved under the reset spring force of the compression spring 215, thereby maintaining the state that the folding rod 2110 is stored in the sleeve rod 219.

[0044] Specifically, the positioning member 22 further comprises a support rod 222 fixed in the rotating wheel 213, the number of the support rod 222 is two, and the support rod 222 is circumferentially arranged in the rotating wheel 213; a swing rod 223 is hingedly connected to the surface of the support rod 222; a tension spring 224 is fixed in the swing rod 223, and the tension spring 224 is in a stretched state; the other end of the tension spring 224 is fixed to the inner wall of the rotating wheel 213; a connecting rod 225 is hingedly connected in the swing rod 223, and the other end of the connecting rod 225 is hingedly connected to the bolt 221; by pressing one end of the swing rod 223, the other end of the swing rod 223 is raised, and the connecting rod 225 is pulled at the same time, so that the connecting rod 225 pulls the bolt 221, and thus the bolt 221 moves away from the clamping groove 214-1 of the sliding block 214, the clamping groove 214-1 is released, and the sliding block 214 is reset under the reset elastic force of the compression spring 215, so that the folding rod 2110 can be extended out of the sleeve rod 219 again.

[0045] Specifically, the positioning member 22 further comprises a support arm 226 fixed to the surface of the support base 211, and the other end of the support arm 226 is fixed with a compression block 227; the compression surface 227-1 is arranged on the compression block 227; the compression wheel 228 is rotatably connected in the swing rod 223; when the rotating wheel 213 rotates, the sliding block 214 limited by the bolt 221 moves to the direction of the compression block 227; with the rotation of the rotating wheel 213, the compression surface 227-1 of the compression block 227 extrudes the compression wheel 228 at the end of the swing rod 223, so that the other end of the swing rod 223 is raised.

[0046] Specifically, the folding assembly 2 further comprises a driving member 23 arranged on one side of the rotating wheel 213; the driving member 23 comprises a bevel gear 231 fixed to the surface of the rotating shaft 212; the first transmission shaft 232 is arranged on one side of the rotating shaft 212, and the bevel gear 231 is fixed to both ends of the first transmission shaft 232; the driving shaft 233 is arranged on one side of the first transmission shaft 232, and the bevel gear 231 is fixed to both ends of the driving shaft 233; the second transmission shaft 234 is arranged on one side of the driving shaft 233, and the bevel gear 231 is fixed to both ends of the second transmission shaft 234; through the transmission of the bevel gear 231, the driving shaft 233 can drive the first transmission shaft 232 and the second transmission shaft 234 to rotate respectively, so that the first transmission shaft 232 and the second transmission shaft 234 drive the two rotating wheels 213 to rotate in opposite directions.

[0047] Embodiment 3 With reference to Figures 1-14 This is the third embodiment of the present application, which is based on the first two embodiments.

[0048] Specifically, the folding assembly 2 further comprises a clamping piece 24 arranged on the shell 11. The clamping piece 24 comprises a support shell 241 fixed to the bottom of the shell 11. A first connecting rod 242 is hingedly connected in the support shell 241. There are four first connecting rods 242, which are arranged in parallel. The other end of the first connecting rod 242 is hingedly connected with a first pressing plate 243. The first pressing plate 243 can move parallel to the inner bottom wall of the shell 11. The first pressing plate 243 can press down on the flat diaphragm 12, so as to clamp and position the diaphragm 12.

[0049] Specifically, the clamping piece 24 further comprises a first push rod 244 hingedly connected in the first pressing plate 243. The other end of the first push rod 244 is fixed with a first air cylinder 245. The tail of the first air cylinder 245 is fixed with a first rotating seat 246, which is rotatably connected in the support shell 241.

[0050] Starting the first air cylinder 245 can make the output end of the first air cylinder 245 push the first push rod 244, so as to push the first pressing plate 243, so as to clamp the diaphragm 12.

[0051] Specifically, the clamping piece 24 further comprises a second connecting rod 247 hingedly connected in the first pressing plate 243. There are four second connecting rods 247, which are arranged in parallel. The other end of the second connecting rod 247 is hingedly connected with a second pressing plate 248. The second pressing plate 248 can translate relative to the first pressing plate 243, so that the second pressing plate 248 can press the pole piece placed on the top of the diaphragm 12, to prevent the airflow caused by the folding of the diaphragm 12 from moving the pole piece.

[0052] Specifically, the clamping piece 24 further comprises a second push rod 249 hingedly connected in the second pressing plate 248. The other end of the second push rod 249 is fixed with a second air cylinder 2410. The tail of the second air cylinder 2410 is fixed with a second rotating seat 2411, which is rotatably connected in the first pressing plate 243.

[0053] Starting the second air cylinder 2410 can make the output end of the second air cylinder 2410 push the second push rod 249, so as to push the second pressing plate 248, so as to make the second pressing plate 248 fall on the pole piece placed above the diaphragm 12, so as to press and position the pole piece.

[0054] Specifically, the number of clamping pieces 24 is two, which are arranged in oblique symmetry in the shell 11.

[0055] The obliquely symmetrical clamping pieces 24 can press the diaphragm 12 and the pole piece in cooperation with different folding rods 2110 during the folding of the diaphragm 12, so that the positive and negative pole pieces can be stably placed on both sides of the diaphragm 12, so as not to be offset during the folding of the diaphragm 12.

[0056] In use, when stacking is required, the diaphragm 12 is first clamped by the clamping plate on the surface of the lifting platform 13. Then, the drive shaft 233 is driven to rotate by the power device. The drive shaft 233 drives the two rotating wheels 213 to rotate in opposite directions through the first transmission shaft 232 and the second transmission shaft 234. At this time, one of the rotating wheels 213 drives the folding rod 2110 to fold the diaphragm 12 through the slider 214, so that the diaphragm 12 is laid flat on the surface of the lifting platform 13, as shown in the figure. At this time, the first cylinder 245 can be activated, so that the first cylinder 245 drives the first pressure plate 243 to press the diaphragm 12, thereby preventing the folding rod 2110 from being pulled out and causing the diaphragm 12 to move.

[0057] At this time, the suction cup 16 can be moved by the external control module, so that the suction cup 16 moves the electrode sheet, thereby adding the electrode sheet to the diaphragm 12 laid flat on the surface of the lifting platform 13. Then, the suction cup 16 retracts and resets. When the electrode sheet is added to the diaphragm 12 laid flat on the surface of the lifting platform 13, the second cylinder 2410 is activated, so that the output end of the second cylinder 2410 drives the second pressure plate 248 to press the electrode sheet, preventing the electrode sheet from shifting after placement. During the movement of suction cup 16, another rotating wheel 213 will drive the diaphragm 12 to fold, so that the diaphragm 12 is folded flat again. At this time, another suction cup 16 will drive another type of electrode to fall on the diaphragm 12. During this process, another first pressure plate 243 and second pressure plate 248 will press the diaphragm 12 and the electrode respectively. During the process of folding and flattening the diaphragm 12 again, the folding rod 2110, which had previously been compressed against the diaphragm 12, is blocked and cannot continue to rotate with the rotating wheel 213. As the rotating wheel 213 continues to rotate, the slider 214 on one side of the folding rod 2110 slides inside the rotating wheel 213 by the movement of the sleeve rod 219. At this time, the compression spring 215 is compressed. While the slider 214 slides, the gear 218 moves synchronously, causing the rack 216 to drive the gear 218 to rotate, which in turn causes the gear 218 to drive the rotating rod 217 to rotate. At this time, the rotating rod 217 can drive the folding rod 2110 to move into the sleeve rod 219. As the rotating wheel 213 continues to rotate, the folding rod 2110 will move into the sleeve rod 219. At this time, the sleeve rod 219 can continue to move from the gap in the housing 11, so that the rotating wheel 213 can continue to drive the sleeve rod 219 to move. At this time, the pin 221 is inserted into the slot 214-1, so that the slider 214 cannot be reset and moved under the push of the reset force of the compression spring 215, thereby maintaining the folding rod 2110 in the state of being stored in the sleeve rod 219, so that when the rotating wheel 213 rotates, it will not cause the folding rod 2110 to collide with the lifting mechanism 14 and the feeding mechanism 15.

[0058] As the rotating wheel 213 rotates, after the sleeve rod 219 passes under the lifting mechanism 14 and the feeding mechanism 15, the pressing surface 227-1 of the pressing block 227 will press the pressing wheel 228 at the end of the swing rod 223, thereby causing the other end of the swing rod 223 to lift up, so that the pin 221 moves away from the slot 214-1 and releases the limit on the slider 214.

[0059] During this process, another folding rod 2110 on the same rotating wheel 213 will fold the separator 12 again, repeating the above process to complete the battery stacking process.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An automotive lithium-ion battery stack device, characterized by: The utility model relates to a kind of folding machine, including, Main body assembly (1), including shell (11), diaphragm (12) is provided in the shell (11), lifting platform (13) is provided in the shell (11), lifting mechanism (14) is fixed at the bottom of the shell (11), feeding mechanism (15) is provided at the both sides of the shell (11), feeding suction disc (16) is provided at the top of the feeding mechanism (15), feeding inlet (15-1) is provided in the feeding mechanism (15); Folding assembly (2) is provided at the both sides of the shell (11), including folding piece (21) provided at the both sides of the shell (11), the folding piece (21) includes support seat (211), rotating shaft (212) is rotatably connected in the support seat (211), rotating wheel (213) is fixed on the surface of the rotating shaft (212), sliding block (214) is slidably arranged in the rotating wheel (213), extrusion spring (215) is fixed on the one side of the sliding block (214), rack (216) is fixed in the rotating wheel (213), rotating rod (217) is rotatably connected in the sliding block (214), gear (218) is fixed on the surface of the rotating rod (217), the gear (218) is engaged with the rack (216), sleeve rod (219) is fixed on the one side of the sliding block (214), folding rod (2110) is slidably arranged in the sleeve rod (219), the end of the rotating rod (217) in the folding rod (2110) is rotatably connected with the folding rod (2110) by screw thread.

2. The automotive lithium-ion battery stack arrangement of claim 1, wherein: The folding assembly (2) further includes positioning piece (22) provided on the surface of the rotating wheel (213), the positioning piece (22) includes bolt (221) slidably arranged in the rotating wheel (213), the sliding block (214) is provided with clamping groove (214-1), the bolt (221) can be inserted into the clamping groove (214-1).

3. The automotive lithium-ion battery stack arrangement of claim 2, wherein: The positioning piece (22) further includes support rod (222) fixed in the rotating wheel (213), the support rod (222) is hinged with swing rod (223) on the surface, the swing rod (223) is fixed with tension spring (224) inside, the other end of the tension spring (224) is fixed to the inner wall of the rotating wheel (213), the swing rod (223) is hinged with connecting rod (225) inside, the other end of the connecting rod (225) is hinged in the bolt (221).

4. The automotive lithium-ion battery stack arrangement of claim 3, wherein: The positioning piece (22) further includes support arm (226) fixed on the surface of the support seat (211), the other end of the support arm (226) is fixed with extrusion block (227), the swing rod (223) is rotatably connected with extrusion wheel (228) inside, the extrusion block (227) is provided with extrusion surface (227-1).

5. The automotive lithium-ion battery stack arrangement of claim 4, wherein: The folding assembly (2) further comprises a driving piece (23) arranged on one side of the rotating wheel (213), the driving piece (23) comprises a bevel gear (231) fixed on the surface of the rotating shaft (212), one side of the rotating shaft (212) is provided with a first transmission shaft (232), both ends of the first transmission shaft (232) are fixedly provided with the bevel gear (231), one side of the first transmission shaft (232) is provided with a driving shaft (233), both ends of the driving shaft (233) are fixedly provided with the bevel gear (231), one side of the driving shaft (233) is provided with a second transmission shaft (234), both ends of the second transmission shaft (234) are fixedly provided with the bevel gear (231).

6. The automotive lithium-ion battery stack arrangement of claim 4 or 5, characterized in that: The folding assembly (2) further comprises a clamping piece (24) arranged on the shell (11), the clamping piece (24) comprises a supporting shell (241) fixed on the bottom of the shell (11), the supporting shell (241) is hingedly connected with a first connecting rod (242), the other end of the first connecting rod (242) is hingedly connected with a first pressing plate (243).

7. The automotive lithium-ion battery stack arrangement of claim 6, wherein: The clamping piece (24) further comprises a first push rod (244) hingedly connected in the first pressing plate (243), the other end of the first push rod (244) is fixedly provided with a first air cylinder (245), the tail of the first air cylinder (245) is fixedly provided with a first rotating seat (246), the first rotating seat (246) is rotatably connected in the supporting shell (241).

8. The automotive lithium-ion battery stack arrangement of claim 7, wherein: The clamping piece (24) further comprises a second connecting rod (247) hingedly connected in the first pressing plate (243), the other end of the second connecting rod (247) is hingedly connected with a second pressing plate (248).

9. The automotive lithium-ion battery stack arrangement of claim 8, wherein: The clamping piece (24) further comprises a second push rod (249) hingedly connected in the second pressing plate (248), the other end of the second push rod (249) is fixedly provided with a second air cylinder (2410), the tail of the second air cylinder (2410) is fixedly provided with a second rotating seat (2411), the second rotating seat (2411) is rotatably connected in the first pressing plate (243).

10. The automotive lithium-ion battery stack arrangement of claim 9, wherein: The number of the clamping piece (24) is two, which are arranged in the shell (11) in oblique symmetry respectively.

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