Cylindrical soft package lithium battery double-cavity automatic edge sealing equipment

Abstract

The present application relates to soft package lithium battery production equipment technical field, especially disclose a kind of cylindrical soft package lithium battery double cavity automatic edge sealing equipment, comprising: bearing flat plate;2 top sealing devices;2 bottom sealing devices;Moving device;Material arrangement device;And feeding rotary plate;2 top sealing devices are fixedly arranged in the directly above of bearing flat plate, 2 top sealing devices are flush, 2 bottom sealing devices are adjacent with 2 top sealing devices, 2 bottom sealing devices are slidably arranged on one side of bearing flat plate, moving device is arranged on the other side of bearing flat plate, the bottom of 2 bottom sealing devices is connected with the power output end of the moving device, moving device is used to synchronously control the moving distance of 2 bottom sealing devices, material arrangement device is located between 2 top sealing devices, feeding rotary plate is arranged below material arrangement device, effectively realize double station sequentially to multiple cylindrical soft package lithium battery automatic edge sealing action, and realize feeding and discharging synchronous action, improve production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of soft package lithium battery production equipment, and particularly relates to a double-cavity automatic edge sealing equipment for cylindrical soft package lithium batteries. BACKGROUND

[0002] Lithium batteries are a kind of batteries using lithium metal or lithium alloy as positive and negative materials, and using non-aqueous electrolyte solution, wherein, lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries, lithium metal batteries are generally batteries using manganese dioxide as positive material, lithium metal or its alloy metal as negative material, and using non-aqueous electrolyte solution, while lithium ion batteries are generally batteries using lithium alloy metal oxide as positive material, graphite as negative material, and using non-aqueous electrolyte, lithium ion batteries do not contain metallic lithium, and are rechargeable, soft package lithium batteries belong to a kind of lithium ion batteries, soft package lithium batteries are wrapped with a layer of polymer shell, soft package lithium batteries have the characteristics of light weight and high safety, because the polymer shell mostly uses aluminum plastic film as packaging material, the overall weight is lighter, and in the case of safety hazards, soft package lithium batteries will only swell and crack, and will not explode, thereby having higher safety.

[0003] The existing soft package lithium battery mainly adopts square battery cells and cylindrical battery cells, and in the production process, the battery cell is wrapped with an aluminum plastic composite packaging film outside, and electrolyte is injected into the mold cavity, after the electrolyte is injected, the opening of the aluminum plastic composite packaging film needs to be edge sealed, the existing soft package lithium battery needs to be edge sealed twice, because too much electrolyte is easy to cause in the first edge sealing process, once the electrolyte is too much, it will affect the battery production quality, and then the soft package lithium battery after the first edge sealing needs to be pierced to extract the excess electrolyte, and the aluminum plastic film of the soft package lithium battery is edge sealed again after the excess electrolyte is extracted, but the existing edge sealing equipment cannot ensure the stability of the cylindrical soft package lithium battery during edge sealing processing of the cylindrical soft package lithium battery, because the cylindrical soft package lithium battery uses cylindrical battery cells, that is, the two sides of the battery cell are arc-shaped, the cylindrical soft package lithium battery needs to be placed stably during heat sealing, if the cylindrical soft package lithium battery cannot be placed stably, the cylindrical soft package battery will shake during edge sealing, thereby the edge sealing port cannot be ensured to be flush, and the existing edge sealing equipment adopts manual placement to place the cylindrical soft package lithium battery in the edge sealing cavity, which cannot ensure that the battery is placed in a flush position, and may cause damage to the battery during edge sealing, the existing edge sealing equipment mostly uses single station to edge seal a single soft package lithium battery, and needs to cooperate with manual placement, resulting in low production efficiency.

[0004] With reference to the patent with the patent disclosure number "CN110957535A" and the patent name "A soft package lithium battery vacuum heat sealing device", the technical solution discloses "a soft package lithium battery vacuum heat sealing device, which comprises a vacuum box, a conveying mechanism, a pressing mechanism, a piercing mechanism, an electrolyte absorbing mechanism, an upper and lower heat sealing mechanism, an auxiliary bearing mechanism and a roller mechanism. The working of the pressing mechanism, the piercing mechanism, the electrolyte absorbing mechanism and the upper and lower heat sealing mechanism is completed in the vacuum box". Although the technical solution can realize automatic edge sealing of the soft package lithium battery, and the air in the soft package lithium battery can be extracted more cleanly before edge sealing to prevent air from being mixed to ensure the performance of the battery, the technical solution can only realize heat sealing of the square soft package lithium battery in a single station, i.e. a single heat sealing station performs edge sealing on a single square soft package lithium battery, which is not suitable for batch continuous production, cannot realize automatic synchronous heat sealing of multiple soft package lithium batteries, and thus leads to low production efficiency.

[0005] Therefore, how to realize automatic edge sealing of the cylindrical soft package lithium battery is a technical problem to be solved by the technical personnel at present. SUMMARY

[0006] The present application aims to provide a cylindrical soft package lithium battery double-cavity automatic edge sealing equipment to solve the problems in the background art.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solution: a cylindrical soft package lithium battery double-cavity automatic edge sealing equipment, comprising:

[0008] a bearing flat plate, two top sealing devices, two bottom sealing devices, a moving device, a material placing device and a feeding rotating plate;

[0009] The two top sealing devices are fixedly arranged above the bearing flat plate, and the two top sealing devices are flush with each other. The two bottom sealing devices are adjacent to the two top sealing devices, and the two bottom sealing devices are slidably arranged on one side of the bearing flat plate. The moving device is arranged on the other side of the bearing flat plate, and the bottom of the two bottom sealing devices is connected with the power output end of the moving device. The moving device is used for synchronously controlling the moving distance of the two bottom sealing devices.

[0010] The material placing device is located between the two top sealing devices, the material placing device comprises a linear movement module and two material suction plates, one end of the linear movement module is close to the outside of the feeding rotary plate, two sliders of the linear movement module are provided with mounting plates, the outside of the two mounting plates is provided with a lifting mechanism, the power output end of the two lifting mechanisms is connected with the two material suction plates one by one, one side of the material suction plate faces one side of the feeding rotary plate, and the linear movement module is used for controlling the moving distance of the two lifting mechanisms, and the two lifting mechanisms are used for controlling the lifting height of the two material suction plates respectively.

[0011] The feeding rotary plate is arranged below the material placing device, and the feeding rotary plate is close to the outside of the bottom sealing device, a plurality of battery clamps are arranged above the feeding rotary plate, the plurality of battery clamps are uniformly distributed around the top of the feeding rotary plate, and arc-shaped grooves are arranged in the plurality of battery clamps, the arc-shaped grooves are matched with the battery cells of the cylindrical soft-pack lithium battery, and the feeding rotary plate is used for supplying the cylindrical soft-pack lithium battery to be sealed.

[0012] Preferably, the moving device comprises a driving mechanism and a transmission screw rod, the transmission screw rod is rotationally arranged below the bearing flat plate, the driving mechanism is fixedly arranged outside the bearing flat plate, the power output end of the driving mechanism is in transmission connection with one end of the transmission screw rod, and the outside of the transmission screw rod is sleeved with two moving vertical plates.

[0013] Preferably, when one of the top sealing devices and one of the bottom sealing devices are aligned and combined, the top sealing device and the bottom sealing device are combined to form a vacuum cavity.

[0014] Preferably, the bottom sealing device comprises a supporting bottom plate, the supporting bottom plate is slidably arranged on one side of the bearing flat plate, the top of the supporting bottom plate is provided with sealing side plates around, and the top of the supporting bottom plate is respectively provided with a placing plate and a liquid outlet plate, the liquid outlet plate is adjacent to the placing plate, a heat sealing bottom plate is arranged between the liquid outlet plate and the placing plate, a plurality of strip-shaped through grooves are uniformly distributed on the liquid outlet plate, one side of the placing plate is provided with a material placing arc groove, and the material placing arc groove is used for placing the cylindrical soft-pack lithium battery.

[0015] Preferably, the top sealing device comprises a supporting top plate fixed above the bearing flat plate and a pushing mechanism arranged on one side of the supporting top plate, the other side of the supporting top plate movably arranged with a movable plate, the bottom of the movable plate is arranged with a sealing baffle around, the power output end of the pushing mechanism is connected with one side of the movable plate, and the movable plate is arranged with a piercing mechanism and a pressing mechanism, the power output end of the pressing mechanism is arranged with a heat sealing top plate, the piercing mechanism comprises a piercing cylinder and a piercing plate, one side of the piercing plate is fixed on the power output end of the piercing cylinder, and the other side of the piercing plate is arranged with a plurality of strip bayonets.

[0016] Preferably, the movable plate is further arranged with a pressing mechanism, the pressing mechanism comprises a jacking cylinder and a pressing plate, the jacking cylinder is arranged on the top of the movable plate, the pressing plate is movably arranged on the bottom of the movable plate, the power output end of the jacking cylinder is drivingly connected with one side of the pressing plate, the heat sealing top plate is located between the piercing plate and the pressing plate, and the other side of the pressing plate is arranged with a pressing arc groove.

[0017] Preferably, when one of the bottom sealing devices is aligned with one of the top sealing devices, the other one of the bottom sealing devices is located directly below the material placing device, and one end of the other one of the bottom sealing devices is aligned with the feeding rotating plate.

[0018] Preferably, the bottom of the supporting bottom plate is arranged with a drainage pipeline, one end of the drainage pipeline faces directly below the liquid outlet plate.

[0019] Preferably, the bottom of the supporting bottom plate is arranged with a drainage pipeline, one end of the drainage pipeline faces directly below the liquid outlet plate.

[0020] Preferably, the outside of the material suction plate is arranged with a plurality of suction through holes, and the plurality of suction through holes are spaced apart on the outside of the material suction plate, when one side of one of the material suction plates is aligned with the top of the feeding rotating plate, the plurality of suction through holes correspond one-to-one with the plurality of battery clamps, and one side of the other material suction plate is located directly above one of the bottom sealing devices.

[0021] Preferably, the outside of the material suction plate is arranged with a plurality of suction through holes, and the plurality of suction through holes are spaced apart on the outside of the material suction plate, when one side of one of the material suction plates is aligned with the top of the feeding rotating plate, the plurality of suction through holes correspond one-to-one with the plurality of battery clamps, and one side of the other material suction plate is located directly above one of the bottom sealing devices.

[0022] Preferably, the top of the bearing flat plate is also provided with a guide sliding rail, both ends of the guide sliding rail are close to the two top sealing devices respectively, and the two bottom sealing devices are in sliding connection with the guide sliding rail, and the surface of the bearing flat plate is provided with a strip-shaped opening for the mobile vertical plate to extend out.

[0023] Compared with the prior art, the present application provides a cylindrical soft-pack lithium battery double-cavity automatic edge sealing equipment, which has the beneficial effects that: by setting the bearing flat plate, the two top sealing devices, the two bottom sealing devices, the moving device, the material placing device, and the feeding rotating plate, the two top sealing devices are fixedly arranged above the bearing flat plate, the two top sealing devices are flush, the two bottom sealing devices are adjacent to the two top sealing devices, and the two bottom sealing devices are slidably arranged on one side of the bearing flat plate, the moving device is arranged on the other side of the bearing flat plate, and the bottoms of the two bottom sealing devices are connected with the power output ends of the moving device; the moving device is used to synchronously control the moving distance of the two bottom sealing devices;

[0024] By arranging the material placing device between the two top sealing devices, the material placing device comprises a linear moving module and two suction plate pieces, one end of the linear moving module is close to the outside of the feeding rotating plate, mounting plates are arranged on the two sliders of the linear moving module, lifting mechanisms are arranged on the outside of the two mounting plates, the power output ends of the two lifting mechanisms are connected with the two suction plate pieces, one side of the suction plate piece faces one side of the feeding rotating plate, and therefore the linear moving module is used to control the moving distance of the two lifting mechanisms, the two lifting mechanisms are used to control the lifting height of the two suction plate pieces, the suction plate piece is used to adsorb and feed the cylindrical soft-pack lithium battery on the feeding rotating plate to the idle bottom sealing device, and automatic feeding and unloading actions are realized;

[0025] When one of the bottom sealing devices is aligned with one of the top sealing devices, the vacuum cavity formed by the combination of the top sealing device and the bottom sealing device is used to adsorb and pump the cylindrical soft-pack lithium battery, the one end of the material placing device is used to take and place the cylindrical soft-pack lithium battery on the idle bottom sealing device, the other end of the material placing device is used to take out and unload the several cylindrical soft-pack lithium batteries that have completed the heat sealing processing in the other bottom sealing device, and the exposed bottom sealing device is in an idle state, automatic edge sealing actions are sequentially performed on multiple cylindrical soft-pack lithium batteries in double-station mode, automatic feeding and unloading actions are realized in the double-station rotation process, and the production efficiency is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0027] Figure 1 is a schematic diagram of the overall structure in the present application.

[0028] Figure 2 is a schematic diagram of the feeding rotating plate and rotating mechanism structure in the present application.

[0029] Figure 3 is a schematic diagram of the material swinging device structure in the present application.

[0030] Figure 4 is a schematic diagram of the moving device and two bottom sealing devices structure in the present application.

[0031] Figure 5 is a schematic diagram of the top sealing device external structure in the present application.

[0032] Figure 6 is a schematic diagram of the top sealing device internal structure in the present application.

[0033] Figure 7 is a schematic diagram of another view of the top sealing device internal structure in the present application.

[0034] Figure 8 is a schematic diagram of the bottom sealing device structure in the present application.

[0035] Figure 9 is a schematic diagram of the piercing mechanism structure in the present application.

[0036] Figure 10 is a schematic diagram of the pressing mechanism structure in the present application.

[0037] In combination with the annotations shown in the drawings: 1, bearing flat plate; 2, top sealing device; 3, bottom sealing device; 4, moving device; 5, material placing device; 6, feeding rotating plate; 21, supporting top plate; 22, pushing mechanism; 23, movable plate; 24, sealing baffle; 25, piercing mechanism; 26, pressing mechanism; 27, heat sealing top plate; 28, pressing mechanism; 31, supporting bottom plate; 32, sealing side plate; 33, placing plate; 34, liquid outlet plate; 35, heat sealing bottom plate; 41, driving mechanism; 42, transmission screw; 43, moving vertical plate; 51, linear movement module; 52, material suction plate; 61, battery clamp; 62, rotating mechanism; 251, piercing cylinder; 252, piercing plate; 253, strip-shaped bayonet; 281, jacking cylinder; 282, pressing plate; 283, pressing arc groove; 331, discharging arc groove; 341, strip-shaped through groove; 510, mounting plate; 511, lifting mechanism; 521, adsorption through hole. DETAILED DESCRIPTION

[0038] Preferred embodiments of the present application will be described in more detail with reference to the drawings. Although preferred embodiments of the present application are shown in the drawings, it should be understood that the present application can be embodied in various forms without being limited to the embodiments set forth herein, but rather, the embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0039] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the present application and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or," as used herein, refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0040] It should be noted that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or indirectly on or connected to the other element by way of another element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element by way of another element.

[0041] In the description of the present application, it should be understood that the terms "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; in addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to; therefore, the limitation of "first", "second" is only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly including one or more features.

[0042] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0043] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.

[0044] Reference Figures 1 to 10 A cylindrical soft package lithium battery double-cavity automatic edge sealing equipment, comprising:

[0045] A bearing flat plate 1, two top sealing devices 2, two bottom sealing devices 3, a moving device 4, a material placing device 5, and a feeding rotating plate 6;

[0046] Two of the top sealing devices 2 are fixedly arranged above the bearing flat plate 1, and the two top sealing devices 2 are flush with each other, two of the bottom sealing devices 3 are adjacent to the two top sealing devices 2, and the two bottom sealing devices 3 are slidingly arranged on one side of the bearing flat plate 1, the moving device 4 is arranged on the other side of the bearing flat plate 1, and the bottoms of the two bottom sealing devices 3 are connected with the power output end of the moving device 4, and the moving device 4 is used for synchronously controlling the moving distance of the two bottom sealing devices 3;

[0047] The material swinging device 5 is located between the two top sealing devices 2, the material swinging device 5 comprises a linear movement module 51 and two material suction plate members 52, one end of the linear movement module 51 is close to the outside of the feeding rotary plate 6, two sliders of the linear movement module 51 are provided with mounting plate members 510, the outside of the two mounting plate members 510 is provided with lifting mechanisms 511, the power output ends of the two lifting mechanisms 511 are connected with the two material suction plate members 52 one by one, one side of the material suction plate member 52 faces one side of the feeding rotary plate 6, and the linear movement module 51 is used for controlling the moving distance of the two lifting mechanisms 511, and the two lifting mechanisms 511 are used for controlling the lifting height of the two material suction plate members 52 respectively.

[0048] The feeding rotary plate 6 is arranged below the material swinging device 5, and the feeding rotary plate 6 is close to the outside of the bottom sealing device 3, a plurality of battery clamps 61 are arranged above the feeding rotary plate 6, the plurality of battery clamps 61 are uniformly distributed around the top of the feeding rotary plate 6, and arc-shaped grooves are arranged in the plurality of battery clamps 61, the arc-shaped grooves are matched with the battery cells of the cylindrical soft-pack lithium battery, and the feeding rotary plate 6 is used for supplying the cylindrical soft-pack lithium battery to be sealed.

[0049] Specifically, the moving device 4 comprises a driving mechanism 41 and a transmission screw rod 42, the transmission screw rod 42 is rotationally arranged below the bearing flat plate 1, the driving mechanism 41 is fixedly arranged outside the bearing flat plate 1, and the power output end of the driving mechanism 41 is in transmission connection with one end of the transmission screw rod 42, and the outside of the transmission screw rod 42 is sleeved with two moving vertical plates 43, and the bottom of each of the two bottom sealing devices 3 is connected with the top of each of the two moving vertical plates 43.

[0050] Specifically, when one of the top sealing devices 2 is aligned and combined with one of the bottom sealing devices 3, the top sealing device 2 and the bottom sealing device 3 are combined to form a vacuum cavity.

[0051] Specifically, the bottom sealing device 3 comprises a supporting bottom plate 31, the supporting bottom plate 31 is slidingly arranged on one side of the bearing flat plate 1, sealing side plates 32 are arranged around the top of the supporting bottom plate 31, a placing plate member 33 and a liquid outlet plate member 34 are arranged on the top of the supporting bottom plate 31 respectively, the liquid outlet plate member 34 is adjacent to the placing plate member 33, a heat sealing bottom plate 35 is arranged between the liquid outlet plate member 34 and the placing plate member 33, a plurality of strip-shaped through grooves 341 are uniformly distributed on the liquid outlet plate member 34, one side of the placing plate member 33 is provided with a material placing arc groove 331, and the material placing arc groove 331 is used for placing the cylindrical soft-pack lithium battery.

[0052] Specifically, the top sealing device 2 comprises a support top plate 21 and a pushing mechanism 22, the support top plate 21 is fixed above the bearing flat plate 1, the pushing mechanism 22 is arranged on one side of the support top plate 21, the other side of the support top plate 21 movably arranged with a movable plate 23, the bottom of the movable plate 23 is provided with a sealing baffle 24 around, the power output end of the pushing mechanism 22 is connected with one side of the movable plate 23, and the movable plate 23 is provided with a piercing mechanism 25 and a pressing mechanism 26, the power output end of the pressing mechanism 26 is provided with a heat sealing top plate 27, the piercing mechanism 25 comprises a piercing cylinder 251 and a piercing plate 252, one side of the piercing plate 252 is fixed on the power output end of the piercing cylinder 251, and the other side of the piercing plate 252 is provided with a plurality of strip bayonets 253.

[0053] Specifically, the movable plate 23 is also provided with a pressing mechanism 28, the pressing mechanism 28 comprises a jacking cylinder 281 and a pressing plate 282, the jacking cylinder 281 is arranged at the top of the movable plate 23, the pressing plate 282 is movably arranged at the bottom of the movable plate 23, and the power output end of the jacking cylinder 281 is drivingly connected with one side of the pressing plate 282, the heat sealing top plate 27 is located between the piercing plate 252 and the pressing plate 282, and the other side of the pressing plate 282 is provided with a pressing arc groove 283.

[0054] Specifically, when one of the bottom sealing devices 3 is aligned with one of the top sealing devices 2, the other one of the bottom sealing devices 3 is located directly below the material swinging device 5, and one end of the other one of the bottom sealing devices 3 is aligned with the feeding rotating plate 6.

[0055] Specifically, the bottom of the support bottom plate 31 is provided with a drainage pipeline, one end of the drainage pipeline faces directly below the liquid outlet plate 34.

[0056] Specifically, the bottom of the support bottom plate 31 is provided with a drainage pipeline, one end of the drainage pipeline faces directly below the liquid outlet plate 34.

[0057] Specifically, the outside of the material suction plate 52 is provided with a plurality of suction holes 521, and the plurality of suction holes 521 are spaced apart on the outside of the material suction plate 52, when one side of one of the material suction plates 52 is aligned with the top of the feeding rotating plate 6, the plurality of suction holes 521 correspond one-to-one with the plurality of battery clamps 61, and one side of the other one of the material suction plates 52 is located directly above one of the bottom sealing devices 3.

[0058] Specifically, the outside of the bearing flat plate 1 is further provided with a conveying plane, one end of the conveying plane is close to the other end of the linear movement module 51, and when one of the suction plate members 52 is located directly above the bottom sealing device 3, the other one of the suction plate members 52 is located directly above the conveying plane, and the conveying plane is used to convey the cylindrical soft-pack lithium battery after the edge sealing is completed.

[0059] Specifically, the top of the bearing flat plate 1 is further provided with a guide rail, both ends of the guide rail are close to the two top sealing devices 2 respectively, and the two bottom sealing devices 3 are in sliding connection with the guide rail, and a strip-shaped opening is formed on the surface of the bearing flat plate 1, and the strip-shaped opening is used for the moving vertical plate 43 to extend out.

[0060] In the embodiment, by setting the bearing flat plate 1, the two top sealing devices 2, the two bottom sealing devices 3, the moving device 4, the material placing device 5, and the feeding rotating plate 6, the two top sealing devices 2 are fixedly arranged above the bearing flat plate 1, and the two top sealing devices 2 are flush with each other, the two bottom sealing devices 3 are adjacent to the two top sealing devices 2, the material placing device 5 is arranged between the two top sealing devices 2, and the two bottom sealing devices 3 are slidably arranged on one side of the bearing flat plate 1, the moving device 4 is arranged on the other side of the bearing flat plate 1, the bottom of each of the two bottom sealing devices 3 is connected with the power output end of the moving device 4, and then the moving device 4 is used to synchronously control the moving distance of the two bottom sealing devices 3, when one of the bottom sealing devices 3 is aligned with one of the top sealing devices 2, the other one of the bottom sealing devices 3 is located directly below the material placing device 5, so that the material placing device 5 takes out the cylindrical soft-pack lithium battery in the bottom sealing device 3 after the heat sealing is completed, and the bottom sealing device 3 is in an idle state, so that the cylindrical soft-pack lithium battery to be sealed is taken out from the feeding rotating plate 6 and placed in the idle bottom sealing device 3, thereby effectively realizing the heat sealing of the plurality of cylindrical soft-pack lithium batteries through the double stations in an automatic manner, and improving the work efficiency.

[0061] For this embodiment, it needs to be further explained that when one of the bottom sealing devices 3 is aligned with one of the top sealing devices 2, the other one of the bottom sealing devices 3 is aligned with the material placing device 5; when the other one of the bottom sealing devices 3 is aligned with the other one of the top sealing devices 2, one of the bottom sealing devices 3 is aligned with the material placing device 5.

[0062] It should be noted that the bottom sealing device 3 comprises a support bottom plate 31, which is slidingly arranged on one side of the bearing flat plate 1. The top of the support bottom plate 31 is provided with sealing side plates 32 around. The top of the support bottom plate 31 is respectively provided with a placing plate 33 and a liquid outlet plate 34. The liquid outlet plate 34 is adjacent to the placing plate 33. A heat sealing bottom plate 35 is arranged between the liquid outlet plate 34 and the placing plate 33. A plurality of strip-shaped through grooves 341 are uniformly distributed on the liquid outlet plate 34. One side of the placing plate 33 is provided with a discharging arc groove 331 for placing the cylindrical soft-pack lithium battery.

[0063] It should be noted that the top sealing device 2 comprises a support top plate 21 and a pushing mechanism 22. The support top plate 21 is fixedly arranged above the bearing flat plate 1. The pushing mechanism 22 is arranged on one side of the support top plate 21. An active plate 23 is movably arranged on the other side of the support top plate 21. Sealing baffles 24 are arranged around the bottom of the active plate 23. The power output end of the pushing mechanism 22 is connected with one side of the active plate 23. The active plate 23 can be driven by the pushing mechanism 22 to move downward, so that the active plate 23 moves towards the bottom sealing device 3 aligned with the top sealing device 2. When the active plate 23 moves towards the bottom sealing device 3 aligned with the top sealing device 2, the active plate 23 is provided with a piercing mechanism 25 and a pressing mechanism 26. The aluminum plastic composite film of the cylindrical soft-pack lithium battery is pierced by the piercing mechanism 25, so that the cylindrical soft-pack lithium battery is in the vacuum cavity in the top sealing device 2 and the bottom sealing device 3. During the vacuumizing process, the excessive electrolyte in the battery can flow out through the pierced pupil. The heat sealing top plate 27 is arranged on the power output end of the pressing mechanism 26. The heat sealing top plate 27 can be driven by the pressing mechanism 26 to move and perform the edge sealing action on the cylindrical soft-pack lithium battery in the bottom sealing device 3.

[0064] It should be noted that the piercing mechanism 25 comprises a piercing cylinder 251 and a piercing plate 252. One side of the piercing plate 252 is fixedly arranged on the power output end of the piercing cylinder 251. A plurality of strip-shaped bayonets 253 are arranged on the other side of the piercing plate 252. Therefore, the aluminum plastic composite film of the cylindrical soft-pack lithium battery in the bottom sealing device 3 can be pierced by the piercing cylinder 251. In cooperation with the vacuumizing action of the vacuum cavity, the excessive electrolyte in the cylindrical soft-pack lithium battery can be easily extracted.

[0065] It should be noted that when the bottom sealing device 3 and the top sealing device 2 are aligned, i.e. the heat sealing top plate 27 and the heat sealing bottom plate 35 are aligned, the pressing mechanism 26 can drive the heat sealing top plate 27 to move towards the heat sealing bottom plate 35, until the heat sealing top plate 27 and the heat sealing bottom plate 35 clamp the aluminum plastic composite film of the cylindrical soft-pack lithium battery, so as to realize the up-down heat sealing action on the aluminum plastic composite film of the cylindrical soft-pack lithium battery, and improve the edge sealing efficiency.

[0066] In combination with the description in this embodiment, it is particularly supplemented that, in order to ensure that the inner cavity of the top sealing device 2 and the inner cavity of the bottom sealing device 3 are completely sealed, the sealing performance of the contact position of the top sealing device 2 and the bottom sealing device 3 needs to be ensured, which can be realized by arranging the sealing side plate 32 around the top of the supporting bottom plate 31, and also by arranging the sealing baffle 24 around the bottom of the movable plate 23. When the top sealing device 2 and the bottom sealing device 3 are aligned and combined, the top of the supporting bottom plate 31 is aligned with the bottom of the movable plate 23, that is, the sealing side plate 32 can be combined with the sealing baffle 24, and the side of the sealing side plate 32 opposite to the sealing baffle 24 is kept flat, so that when the side of the sealing side plate 32 opposite to the sealing baffle 24 is aligned and abuts, it can be completely attached, so that when the aligned inner cavity of the bottom sealing device 3 and the inner cavity of the top sealing device 2 are combined, the sealing structure is maintained, and the cavity formed by the combination of the bottom sealing device 3 and the top sealing device 2 is convenient for subsequent vacuumizing.

[0067] In order to realize the vacuumizing action on the plurality of cylindrical soft-pack lithium batteries inside the vacuum cavity, the vacuumizing pipeline can be arranged on the bottom sealing device 3, so that when one of the bottom sealing devices 3 and one of the top sealing devices 2 are aligned and combined to form a vacuum cavity, the vacuumizing action can be performed on the inside of the vacuum cavity, so that the vacuum cavity is in a vacuum state, so as to facilitate the extraction of excess electrolyte from the punctured cylindrical soft-pack lithium battery in the subsequent process. It needs to be ensured that the vacuum state is negative 90°, and the extraction time is 8 seconds.

[0068] After the liquid sealing edge is completed, the vacuum inside the vacuum cavity needs to be broken. In order to realize the breaking of the vacuum, the gas conveying pipeline can be arranged on the bottom sealing device 3. When the vacuum cavity formed by the combination of the bottom sealing device 3 and the top sealing device 2 is in a vacuum state, that is, after the cylindrical soft-pack lithium battery completes the puncturing and liquid extraction and the secondary sealing edge action, the gas conveying pipeline can be used to convey gas to the vacuum cavity to realize the breaking of the vacuum, so as to facilitate the resetting of the top sealing device 2, and then the top sealing device 2 is separated from the bottom sealing device 3, so as to facilitate the subsequent movement and feeding of the bottom sealing device 3.

[0069] It should be noted that since the cylindrical soft package lithium battery cell is in a cylindrical shape, the position of the cylindrical soft package lithium battery needs to be prevented from deviating before the edge is sealed to ensure the heat sealing effect of the cylindrical soft package lithium battery. The movable plate 23 is further provided with a pressing mechanism 28, which includes a jacking cylinder 281 and a pressing plate 282. The jacking cylinder 281 is arranged at the top of the movable plate 23, and the pressing plate 282 is movably arranged at the bottom of the movable plate 23. The power output end of the jacking cylinder 281 is drivingly connected to one side of the pressing plate 282, so that the heat sealing top plate 27 is located between the piercing plate 252 and the pressing plate 282. The other side of the pressing plate 282 is provided with a pressing arc groove 283. When the power output end of the jacking cylinder 281 is lifted, the pressing plate 282 is lifted. When the power output end of the jacking cylinder 281 is retracted, the pressing plate 282 is pressed and moved, so that the jacking cylinder 281 controls the lifting height of the pressing plate 282.

[0070] The one side of the placing plate 33 is provided with a discharging arc groove 331 for placing the cylindrical soft package lithium battery. When the bottom sealing device 3 and the top sealing device 2 are aligned, the one side of the placing plate 33 can be aligned with the other side of the pressing plate 282. When the pressing plate 282 of the top sealing device 2 is pressed, it can clamp and press the cylindrical soft package lithium battery on the placing plate 33, effectively preventing the position of the cylindrical soft package lithium battery from deviating due to the rotation of the cylindrical cell during heat sealing.

[0071] According to the above description, it should be noted that the pressing arc groove 283 and the discharging arc groove 331 can be provided with a plurality of arc grooves, and the plurality of discharging arc grooves 331 and the plurality of pressing arc grooves are one-to-one corresponding. When the top sealing device 2 and the bottom sealing device 3 are aligned and combined, the plurality of pressing arc grooves can move one by one to the plurality of discharging arc grooves 331 to clamp and fix the cylindrical soft package lithium battery cell.

[0072] It should be noted that in order to prevent the cylindrical soft package lithium battery from being damaged due to direct collision of the pressing force, an elastic buffer structure can be arranged between the pressing plate 282 and the power output end of the jacking cylinder 281 to achieve the buffering effect.

[0073] In order to realize the edge sealing action of a plurality of cylindrical soft package lithium batteries in a continuous production process, and to realize the automatic feeding and discharging synchronous action before the position conversion to improve the work efficiency, in this embodiment: a bearing flat plate 1 is provided; two top sealing devices 2, two bottom sealing devices 3, a moving device 4, a material placing device 5, and a feeding rotating plate 6 are provided; the two top sealing devices 2 are fixedly arranged above the bearing flat plate 1, and the two top sealing devices 2 are flush; the two bottom sealing devices 3 are adjacent to the two top sealing devices 2, and the two bottom sealing devices 3 are slidably arranged on one side of the bearing flat plate 1; the moving device 4 is arranged on the other side of the bearing flat plate 1, and the bottom of the two bottom sealing devices 3 is connected with the power output end of the moving device 4, so that the moving distance of the two bottom sealing devices 3 can be controlled by the moving device 4.

[0074] The material placing device 5 is located between the two top sealing devices 2, and the material placing device 5 includes a linear moving module 51 and two suction plate members 52, one end of the linear moving module 51 is close to the outside of the feeding rotating plate 6, two mounting plate members 510 are arranged on the two sliders of the linear moving module 51, two lifting mechanisms 511 are arranged on the outside of the two mounting plate members 510, the power output ends of the two lifting mechanisms 511 are connected with the two suction plate members 52, one side of the suction plate member 52 faces one side of the feeding rotating plate 6, the moving distance of the two lifting mechanisms 511 is controlled by the linear moving module 51, the lifting height of the two suction plate members 52 is controlled by the two lifting mechanisms 511, and the two lifting mechanisms 511 are respectively above the bottom sealing device 3 and above the feeding rotating plate 6, so that the feeding and discharging action of the two suction plate members 52 is realized.

[0075] When one of the bottom sealing devices 3 is aligned with one of the top sealing devices 2, the other bottom sealing device 3 is below the material placing device 5, so that the cylindrical soft package lithium battery with sealed edge of the other bottom sealing device 3 can be adsorbed and discharged by one of the suction plate members 52 of the material placing device 5, and in this process, the other bottom sealing device 3 is in an idle state, and the other suction plate member 52 of the material placing device 5 places the cylindrical soft package lithium battery to be sealed on the idle bottom sealing device 3, so that the edge sealing action of a plurality of cylindrical soft package lithium batteries is realized in a double position, and the feeding and discharging action of the idle bottom sealing device 3 is realized by the material placing device 5 during the edge sealing process, so that the work efficiency is effectively improved.

[0076] For this embodiment, it should be noted that the mobile device 4 includes a drive mechanism 41 and a transmission screw rod 42, the transmission screw rod 42 is rotatably arranged below the carrying plate 1, and the drive mechanism 41 is fixedly arranged outside the carrying plate 1, and the power output end of the drive mechanism 41 is in transmission connection with one end of the transmission screw rod 42, and two bottom sealing devices 3 are connected with the top of the two movable vertical plates 43 one by one by sleeving two movable vertical plates 43 outside the transmission screw rod 42; therefore, when the drive mechanism 41 rotates, the transmission screw rod 42 is driven to rotate, and then the screw rod transmission structure is realized, and the two movable vertical plates 43 are driven to move by the transmission screw rod 42, and the bottom sealing device 3 is driven to move during the movement of the movable vertical plate 43.

[0077] It should be particularly noted that, in order to facilitate the stable movement of the bottom sealing device 3 on the carrying plate 1 to align with the top sealing device 2, a guide rail is further arranged on the top of the carrying plate 1, the two ends of the guide rail are respectively close to the two top sealing devices 2, the two bottom sealing devices 3 are slidably connected with the guide rail, and a strip-shaped opening is formed on the surface of the carrying plate 1, the strip-shaped opening is used for the movable vertical plate 43 to extend out, and the movable vertical plate 43 can be moved through the strip-shaped opening, so that the bottom sealing device 3 can be stably moved on the carrying plate 1.

[0078] In order to realize the automatic grabbing of the cylindrical soft-pack lithium battery into the empty bottom sealing device 3, and the automatic grabbing and discharging of the cylindrical soft-pack lithium battery which has been heat sealed in the bottom sealing device 3, and make the bottom sealing device 3 in an empty state, in this embodiment: a carrying plate 1, two top sealing devices 2, two bottom sealing devices 3, a mobile device 4, a material placing device 5, and a feeding plate 6 for supplying the edge-sealing cylindrical soft-pack lithium battery are arranged; the material placing device 5 is arranged between the two top sealing devices 2, and the material placing device 5 includes a linear movement module 51 and two suction plate members 52, one end of the linear movement module 51 is close to the outside of the feeding plate 6, two mounting plate members 510 are arranged on the two sliders of the linear movement module 51, two lifting mechanisms 511 are arranged outside the two mounting plate members 510, the power output ends of the two lifting mechanisms 511 are connected with the two suction plate members 52 one by one, one side of the suction plate member 52 faces one side of the feeding plate 6, the moving distance of the two lifting mechanisms 511 can be controlled by the linear movement module 51, and the lifting height of the two suction plate members 52 can be controlled by the two lifting mechanisms 511 respectively.

[0079] It is particularly pointed out that the linear movement module 51 can adopt a double slider movement module, and two mounting plate members 510 are arranged on the two sliders of the linear movement module 51, so that one linear movement module 51 can control the synchronous movement of two mounting plate members 510, and the other one suction plate member 52 can take out the cylindrical soft-pack lithium battery in the bottom sealing device 3 below the material placing device 5, so that the bottom sealing device 3 is in an idle state, so that one of the suction plate members 52 places the cylindrical soft-pack lithium battery to be sealed in the idle bottom sealing device 3, that is, the two suction plate members 52 act synchronously, so that the automatic feeding and discharging synchronous action is realized, and the work efficiency is improved.

[0080] It should be noted that the bottom sealing device 3 comprises a support bottom plate 31, the support bottom plate 31 is slidably arranged on one side of the bearing flat plate 1, a sealing side plate 32 is arranged around the top of the support bottom plate 31, a placing plate member 33 and a liquid outlet plate member 34 are arranged on the top of the support bottom plate 31 respectively, the liquid outlet plate member 34 is adjacent to the placing plate member 33, a heat sealing bottom plate 35 is arranged between the liquid outlet plate member 34 and the placing plate member 33, a plurality of strip-shaped through grooves 341 are uniformly distributed on the liquid outlet plate member 34, which can limit and correct the strip-shaped bayonet 253, ensure that the strip-shaped bayonet 253 extends when it is pressed down, complete the piercing action, and when the strip-shaped bayonet 253 is pierced and reset, the inner wall of the strip-shaped through groove 341 can contact the outer part of the strip-shaped bayonet 253 to reduce the adhesion of the strip-shaped bayonet 253, and an unloading arc groove 331 is arranged on one side of the placing plate member 33, so that the cylindrical soft-pack lithium battery can be placed in the unloading arc groove 331 to realize stable placement of the cylindrical soft-pack lithium battery, ensure that the cylindrical soft-pack lithium battery does not shift during the sealing process, and effectively ensure the production quality of the cylindrical soft-pack lithium battery.

[0081] When one of the bottom sealing devices 3 is aligned with one of the top sealing devices 2, the other one of the bottom sealing devices 3 is located directly below the material placing device 5, one end of the other one of the bottom sealing devices 3 is aligned with the feeding rotating plate 6, so that the material placing device 5 can take out the cylindrical soft-pack lithium battery in the other one of the bottom sealing devices 3, and the other one of the bottom sealing devices 3 is in an idle state, so that the cylindrical soft-pack lithium battery to be sealed can be placed in the bottom sealing device 3.

[0082] It should be noted that, in order to realize the conveying of the finished edge cylindrical soft package lithium battery, the transportation plane is further arranged outside the bearing flat plate 1, one end of the transportation plane is close to the other end of the linear movement module 51, when one of the suction plate members 52 is located directly above the bottom sealing device 3, the other suction plate member 52 is located directly above the transportation plane, that is, when one of the suction plate members 52 adsorbs the to-be-sealed cylindrical soft package lithium battery of the feeding turn plate 6 to move to the idle bottom sealing device 3, the other suction plate member 52 is directly above the finished edge cylindrical soft package lithium battery on the transportation plane, which effectively conveys the finished edge cylindrical soft package lithium battery through the transportation plane, and improves the automation efficiency.

[0083] In embodiment four, in order to realize automatic feeding and placing actions in a large-batch continuous production process, in this embodiment: by arranging the feeding turn plate 6 and the placing device 5, the feeding turn plate 6 is arranged below the placing device 5, and the feeding turn plate 6 is close to the outside of the bottom sealing device 3, a plurality of battery clamps 61 are arranged above the feeding turn plate 6, the plurality of battery clamps 61 are uniformly distributed around the top of the feeding turn plate 6, and arc-shaped grooves are arranged in the plurality of battery clamps 61, the arc-shaped grooves are matched with the battery cells of the cylindrical soft package lithium battery, so that the feeding turn plate 6 can be used to supply the cylindrical soft package lithium battery to be sealed;

[0084] A rotating mechanism 62 is further arranged below the feeding turn plate 6, the power output end of the rotating mechanism 62 is fixedly connected with the bottom of the feeding turn plate 6, and the rotating mechanism 62 is used to control the rotating direction of the feeding turn plate 6;

[0085] It should be noted that a plurality of suction through holes 521 are arranged outside the suction plate member 52, the plurality of suction through holes 521 are spaced apart outside the suction plate member 52, when one side of one of the suction plate members 52 is aligned with the top of the feeding turn plate 6, the plurality of suction through holes 521 correspond to the plurality of battery clamps 61 one by one, and one side of the other suction plate member 52 is located directly above one of the bottom sealing devices 3, so that the plurality of suction through holes 521 of the suction plate member 52 can be aligned with the plurality of battery clamps 61 of the feeding turn plate 6 to perform the cylindrical soft package lithium battery suction and taking action.

[0086] It should be noted that the feeding turn plate 6 can be in a square structure integrally formed structure, and a plurality of battery clamps 61 can be uniformly distributed on the top of the feeding plate. When the rotating mechanism 62 drives one side of the feeding turn plate 6 to align with one end of the linear movement module 51, one of the feeding plates 52 can be driven by the feeding device 5 to adsorb and take out the cylindrical soft package lithium battery on one side of the feeding turn plate 6. At this time, the feeding turn plate 6 can be rotated again by the rotating mechanism 62, so that the next side of the feeding turn plate 6 is aligned with one end of the linear movement module 51, effectively realizing the removal of the idle battery clamps 61 of the feeding turn plate 6, and the full load battery clamps 61 can be aligned with the feeding device 5 to facilitate the feeding device 5 to take out the cylindrical soft package lithium battery after heat sealing.

[0087] In combination with the description of the embodiment, it should be noted that the rotating mechanism 62 can be a servo motor, which can drive the feeding turn plate 6 to rotate, so that one side of the feeding turn plate 6 is aligned with the idle bottom sealing device 3. The linear movement module 51 of the feeding device 5 drives the suction plate 52 to be located directly above the feeding turn plate 6, and the suction plate 52 is moved towards the battery clamp 61 on the feeding turn plate 6 by the lifting mechanism 511. The suction plate 52 is adsorbed through the suction hole 521 to synchronously adsorb and take out the plurality of cylindrical soft package lithium batteries arranged in a straight line on the feeding turn plate 6. The power output end of the lifting mechanism 511 is retracted to drive the suction plate 52 to rise, and the plurality of battery taking-out actions are completed. At this time, the rotating mechanism 62 is rotated again, so that the plurality of battery clamps 61 on the other side of the feeding turn plate 6 are again located below one end of the linear movement module 51. The linear movement module 51 drives the suction plate 52 to move and align with the idle bottom sealing device 3, thereby completing the automatic feeding action, and effectively realizing the automatic feeding and placing of the cylindrical soft package lithium battery in the continuous production process.

[0088] In combination with embodiment one, in order to realize automatic puncture of the aluminum-plastic composite film of the cylindrical soft-pack lithium battery, facilitate subsequent vacuum liquid extraction, and prevent the electrolyte droplets adhering to the outside of the strip-shaped bayonet 253 from falling on the surface of the battery to cause battery pollution, during the puncture of the aluminum-plastic film of the cylindrical soft-pack lithium battery, the bayonet extends into the inside of the aluminum-plastic film, which may cause the bayonet to adhere to the liquid, and the electrolyte droplets falling from the bayonet may pollute the surface of the battery. In this embodiment: two top sealing devices 2 and two bottom sealing devices 3 are arranged, when one of the top sealing devices 2 and one of the bottom sealing devices 3 are aligned, the top sealing device 2 and the bottom sealing device 3 are combined to form a vacuum cavity, the top sealing device 2 includes a supporting top plate 21 and a pushing mechanism 22, the supporting top plate 21 is fixed above the carrying flat plate 1, the pushing mechanism 22 is arranged on one side of the supporting top plate 21, the other side of the supporting top plate 21 movably arranged with a movable plate 23, the bottom of the movable plate 23 is arranged with a sealing baffle 24 around, the power output end of the pushing mechanism 22 is connected with one side of the movable plate 23, the movable plate 23 is arranged with a puncture mechanism 25 and a pressing mechanism 26, the power output end of the pressing mechanism 26 is arranged with a heat sealing top plate 27, the puncture mechanism 25 includes a puncture cylinder 251 and a puncture plate 252, one side of the puncture plate 252 is fixed on the power output end of the puncture cylinder 251, the other side of the puncture plate 252 is arranged with a plurality of strip-shaped bayonets 253.

[0089] It should be noted that, in order to ensure uniform stress during puncture, the puncture mechanism 25 can be arranged with two, the two puncture mechanisms 25 are adjacent, and the puncture cylinder 251 of each puncture mechanism 25 is arranged with two, the two puncture cylinders 251 are symmetrically arranged on one side of the puncture plate 252, and the power output ends of the two puncture cylinders 251 are connected with one side of the puncture plate 252, so as to ensure uniform stress of the puncture plate 252 during puncture and pressing, and ensure uniform stress of the plurality of strip-shaped bayonets 253.

[0090] It should be noted that the bottom sealing device 3 comprises a support bottom plate 31, which is slidingly arranged on one side of the bearing flat plate 1. A sealing side plate 32 is arranged around the top of the support bottom plate 31. Therefore, when the top sealing device 2 and the bottom sealing device 3 are aligned and combined, the sealing side plate 32 can be aligned with the sealing baffle 24. The inner cavity of the bottom sealing device 3 and the inner cavity of the top sealing device 2 are combined to form a vacuum cavity. A placement plate 33 and a liquid outlet plate 34 are arranged on the top of the support bottom plate 31. The liquid outlet plate 34 is adjacent to the placement plate 33. A heat sealing bottom plate 35 is arranged between the liquid outlet plate 34 and the placement plate 33. After the liquid is pierced, the heat sealing bottom plate 35 and the heat sealing top plate 27 can clamp and heat seal the two surfaces of the aluminum-plastic composite film of the cylindrical soft-pack lithium battery. A plurality of strip-shaped through grooves 341 are uniformly distributed on the liquid outlet plate 34. A discharging arc groove 331 is arranged on one side of the placement plate 33. The discharging arc groove 331 is used to place the cylindrical soft-pack lithium battery, so that the cylindrical soft-pack lithium battery remains stable when it is in the bottom sealing device 3 and does not deviate from the position.

[0091] According to the above description, an active guide plate can be arranged directly below the piercing plate 252. A plurality of limiting through grooves are formed in the surface of the active guide plate to allow the strip-shaped bayonets 253 to extend out. The strip-shaped bayonets 253 can contact the surface of the aluminum-plastic film of the cylindrical soft-pack lithium battery in the bottom sealing device 3 to perform the piercing action. One side of the active guide plate is elastically connected to the bottom of the piercing plate 252. The active guide plate can face the liquid outlet plate 34 of the bottom sealing device 3. During the pressing process of the piercing plate 252, the active guide plate and the liquid outlet plate 34 can clamp and fix the two surfaces of the aluminum-plastic composite film of the soft-pack cylindrical lithium battery, so that the aluminum-plastic composite film remains flat during the piercing process and does not bend and deform to affect the piercing effect.

[0092] According to the above description, the limiting through grooves and the strip-shaped through grooves 341 can facilitate the extension of the strip-shaped bayonets 253 for piercing. The limiting through grooves and the strip-shaped through grooves 341 can be sized to match the strip-shaped bayonets 253. During the resetting process of the strip-shaped bayonets 253, the electrolyte cannot adhere to the surface of the strip-shaped bayonets 253, preventing the electrolyte from dripping and contaminating the surface of the battery.

[0093] It should be noted that by arranging the drain pipe at the bottom of the support bottom plate 31, one end of the drain pipe is arranged to face directly below the liquid outlet plate 34, and the support bottom plate 31 is provided with a liquid outlet through hole, so that the end of the drain pipe is connected to the liquid outlet through hole. When the top sealing device 2 and the bottom sealing device 3 are combined to form a vacuum cavity, and after the piercing mechanism 25 pierces the cylindrical soft-pack lithium battery on the bottom sealing device 3, the excess electrolyte can flow through the liquid outlet plate 34 and be discharged into the drain pipe.

[0094] The solutions of the present application have been described in detail above with reference to the drawings. In the above-described embodiments, the description of each embodiment focuses on different aspects, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments. It should also be known by those skilled in the art that the actions and modules involved in the specification are not necessarily required by the present application. In addition, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined and reduced in sequence according to actual needs, and the modules in the device embodiments of the present application can be combined, divided and reduced according to actual needs.

[0095] The above has described various embodiments of the present application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical application or improvement of technology in the market, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. An automatic edge-sealing device for a dual-chamber cylindrical soft-pack lithium battery, characterized in that, include: Support plate; 2 top sealing devices; Two bottom sealing devices; Mobile devices; Material handling device; And the material transfer plate; Both top sealing devices are fixedly arranged directly above the supporting plate and are flush with each other. The two bottom sealing devices are adjacent to the two top sealing devices and are slidably arranged on one side of the supporting plate. The moving device is arranged on the other side of the supporting plate, and the bottom of the two bottom sealing devices is connected to the power output end of the moving device. The moving device is used to synchronously control the moving distance of the two bottom sealing devices. The moving device includes a driving mechanism and a transmission screw. The transmission screw is rotatably located directly below the bearing plate. The driving mechanism is fixed outside the bearing plate, and the power output end of the driving mechanism is connected to one end of the transmission screw. Two movable vertical plates are sleeved on the outside of the transmission screw. The bottom of the two bottom sealing devices is connected to the top of the two movable vertical plates one by one. The top of the supporting plate is also provided with a guide rail, with both ends of the guide rail close to the two top sealing devices, and both bottom sealing devices are slidably connected to the guide rail. The surface of the supporting plate is provided with a strip-shaped opening for the movable vertical plate to extend out. The material handling device is located between the two top sealing devices. The material handling device includes a linear motion module and two suction plates. One end of the linear motion module is close to the outside of the feeding turntable. Each of the two sliders of the linear motion module is provided with a mounting plate. Each of the two mounting plates is provided with a lifting mechanism. The power output end of the two lifting mechanisms is connected to the two suction plates one by one. One side of the suction plate faces the side of the feeding turntable. The linear motion module is used to control the moving distance of the two lifting mechanisms. The two lifting mechanisms are used to control the lifting height of the two suction plates respectively. The feeding plate is located below the material placement device and is close to the outside of the bottom sealing device. Several battery clamps are arranged directly above the feeding plate. The battery clamps are evenly distributed around the top of the feeding plate, and the interior of each battery clamp has an arc-shaped groove that is adapted to the cell of the cylindrical soft-pack lithium battery. The feeding plate is used to supply cylindrical soft-pack lithium batteries to be sealed.

2. The cylindrical soft-pack lithium battery dual-chamber automatic edge sealing equipment according to claim 1, characterized in that, When one of the top sealing devices aligns and merges with one of the bottom sealing devices, the top sealing device and the bottom sealing device merge to form a vacuum cavity.

3. The cylindrical soft-pack lithium battery dual-chamber automatic edge sealing equipment according to claim 1, characterized in that, The bottom sealing device includes a supporting base plate, which is slidably disposed on one side of the bearing plate. Sealing side plates are provided around the top of the supporting base plate, and a placement plate and a liquid outlet plate are respectively provided on the top of the supporting base plate. The liquid outlet plate is adjacent to the placement plate, and a heat-sealing base plate is provided between the liquid outlet plate and the placement plate. Several strip-shaped through grooves are evenly distributed on the liquid outlet plate, and a discharge arc groove is provided on one side of the placement plate for placing cylindrical soft-pack lithium batteries.

4. The cylindrical soft-pack lithium battery dual-chamber automatic edge sealing equipment according to claim 1, characterized in that, The top sealing device includes a supporting top plate and a pushing mechanism. The supporting top plate is fixedly installed above the bearing plate. The pushing mechanism is located on one side of the supporting top plate. A movable plate is movably installed on the other side of the supporting top plate. Sealing baffles are provided around the bottom of the movable plate. The power output end of the pushing mechanism is connected to one side of the movable plate. A piercing mechanism and a pressing mechanism are provided on the movable plate. A heat-sealing top plate is provided on the power output end of the pressing mechanism. The piercing mechanism includes a piercing cylinder and a piercing plate. One side of the piercing plate is fixed to the power output end of the piercing cylinder, and a plurality of strip-shaped daggers are provided on the other side of the piercing plate.

5. The cylindrical soft-pack lithium battery dual-chamber automatic edge sealing equipment according to claim 4, characterized in that, The movable plate is also provided with a clamping mechanism, which includes a lifting cylinder and a pressing plate. The lifting cylinder is located at the top of the movable plate, and the pressing plate is movably located at the bottom of the movable plate. The power output end of the lifting cylinder is connected to one side of the pressing plate. The heat-sealing top plate is located between the puncture plate and the pressing plate. The other side of the pressing plate is provided with a clamping arc groove.

6. The cylindrical soft-pack lithium battery dual-chamber automatic edge sealing equipment according to claim 1, characterized in that, When one of the bottom sealing devices is aligned with one of the top sealing devices, the other bottom sealing device is located directly below the material handling device, and one end of the other bottom sealing device is aligned with the feeding turntable.

7. The cylindrical soft-pack lithium battery dual-chamber automatic edge sealing equipment according to claim 3, characterized in that, The bottom of the support base plate is provided with a drain pipe, one end of which faces directly below the liquid outlet plate.

8. The cylindrical soft-pack lithium battery dual-chamber automatic edge sealing equipment according to claim 1, characterized in that, A rotating mechanism is also provided directly below the feeding plate. The power output end of the rotating mechanism is fixedly connected to the bottom of the feeding plate. The rotating mechanism is used to control the rotation direction of the feeding plate.

9. The cylindrical soft-pack lithium battery dual-chamber automatic edge sealing equipment according to claim 1, characterized in that, The suction plate has several adsorption holes on its exterior, and these holes are spaced apart. When one side of one of the suction plates is aligned with the top of the feeding plate, the adsorption holes correspond one-to-one with the battery clamps. The other side of the suction plate is located directly above one of the bottom sealing devices.

10. The automatic edge-sealing equipment for a dual-chamber cylindrical soft-pack lithium battery according to claim 1, characterized in that, The outer side of the carrying plate is also provided with a transport plane. One end of the transport plane is close to the other end of the linear motion module. When one of the suction plates is located directly above the bottom sealing device, the other suction plate is located directly above the transport plane. The transport plane is used to transport the cylindrical soft-pack lithium battery with the edge sealed.

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