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

Abstract

The invention relates to the technical field of soft package lithium battery production equipment, and particularly discloses cylindrical soft package lithium battery double-cavity automatic edge sealing equipment which comprises a bearing flat plate; two top sealing devices; two bottom sealing devices; a moving device; a material placing device; and a feeding rotating plate. The two top sealing devices are fixedly arranged over the bearing flat plate and flush with each other, the two bottom sealing devices are adjacent to the two top sealing devices one by one and slidably arranged on one face of the bearing flat plate, the moving device is arranged on the other face of the bearing flat plate, and the bottoms of the two bottom sealing devices are 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, the material placing device is located between the two top sealing devices, and the material supply rotating plate is arranged below the material placing device, so that automatic edge sealing action on a plurality of cylindrical soft package lithium batteries in sequence by double stations is effectively realized, synchronous action of feeding and discharging is realized, and the production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of soft-pack lithium battery production equipment, and in particular to a double-cavity automatic edge sealing device for cylindrical soft-pack lithium batteries. Background Art

[0002] Lithium batteries are a type of battery that uses lithium metal or lithium alloy as the positive electrode material and the negative electrode material, and uses a non-aqueous electrolyte solution. Among them, lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium metal batteries are generally batteries that use manganese dioxide as the positive electrode material, metallic lithium or its alloy metal as the negative electrode material, and use a non-aqueous electrolyte solution, while lithium ion batteries are generally batteries that use lithium alloy metal oxides as the positive electrode material, graphite as the negative electrode material, and use a non-aqueous electrolyte. Lithium ion batteries do not contain metallic lithium and are rechargeable. Soft-pack lithium batteries are a type of lithium-ion battery. Soft-pack lithium batteries are liquid lithium-ion batteries covered with a layer of polymer shell. Soft-pack lithium batteries have the characteristics of light weight and high safety. Because the polymer shell mostly uses aluminum-plastic film as the packaging material, the overall weight is lighter. In the event of a safety hazard, the soft-pack lithium battery will only bulge and crack, and will not explode, thus having higher safety.

[0003] The existing soft-pack lithium battery mainly adopts square battery cells and cylindrical battery cells, and in the production process, it is necessary to wrap the outside of the battery cell with an aluminum-plastic composite packaging film, and inject electrolyte into the mold cavity. After the electrolyte is injected, the opening of the aluminum-plastic composite packaging film needs to be sealed. The existing soft-pack lithium battery needs to be processed for secondary edge sealing. Because the primary edge sealing process is likely to cause excessive electrolyte inside the aluminum-plastic composite packaging film, once the electrolyte is excessive, it will affect the battery production quality, and then the soft-pack lithium battery after the primary edge sealing needs to be punctured to extract excess electrolyte. After extracting the excess electrolyte, the aluminum-plastic composite film of the soft-pack lithium battery is sealed for the second time. However, the existing edge sealing equipment is difficult to perform on cylindrical soft-pack lithium batteries. The stability of the cylindrical soft-pack lithium battery cannot be ensured during the edge sealing process. Since the cylindrical soft-pack lithium battery uses a cylindrical battery cell, that is, the two sides of the battery cell are arc-shaped, the cylindrical soft-pack lithium battery needs to be kept stable during the heat sealing process. If the cylindrical soft-pack lithium battery cannot be kept stable, the cylindrical soft-pack lithium battery will shake during the edge sealing process, and the edge sealing mouth cannot be ensured to be flush. In addition, the existing edge sealing equipment uses manual material placement to place the cylindrical soft-pack lithium battery in the edge sealing cavity, which cannot ensure that the battery is placed flush, which will cause damage to the battery during edge sealing. Most of the existing edge sealing equipment uses a single station to perform edge sealing on a single soft-pack lithium battery, and requires manual material placement, resulting in low production efficiency.

[0004] Referring to the Chinese invention patent with the patent publication number of "CN110957535A" and the patent name of "A vacuum heat-sealing device for soft-pack lithium batteries", the technical solution discloses "a vacuum heat-sealing device for soft-pack lithium batteries, including a vacuum box, a conveying mechanism, a pressing mechanism, a puncturing mechanism, an electrolyte absorption mechanism, an upper and lower heat-sealing mechanism, an auxiliary bearing mechanism and a roller mechanism, wherein the pressing mechanism, the puncturing mechanism, the electrolyte absorption mechanism and the upper and lower heat-sealing mechanism all work in the vacuum box". Although the technical solution can realize the automatic edge sealing of soft-pack lithium batteries, and the air in the soft-pack lithium batteries is extracted more cleanly before the edge sealing process to prevent the air from entering, so as to ensure the performance of the battery, the technical solution can only realize the heat sealing of square soft-pack lithium batteries at a single station, that is, a single heat-sealing station performs the edge sealing of a single square soft-pack lithium battery, which is not suitable for batch continuous production, and cannot realize the automatic synchronous heat sealing of multiple soft-pack lithium batteries, which leads to low production efficiency.

[0005] Therefore, how to automatically seal the edges of cylindrical soft-pack lithium batteries is a technical problem that technicians currently need to solve. Summary of the invention

[0006] The object of the present invention is to provide a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device to solve the problems raised in the above background technology.

[0007] To achieve the above object, the present invention provides the following technical solution: a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device, comprising:

[0008] Loading plate; 2 top sealing devices; 2 bottom sealing devices; moving device; swinging device; and feeding rotating plate;

[0009] The two top sealing devices are fixedly arranged directly above the bearing 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 one by one, and the two bottom sealing devices are slidably arranged on one surface of the bearing plate, the moving device is arranged on the other surface of the bearing plate, and the bottoms of the two bottom sealing devices are connected to the power output end of the moving device, and the moving device is used to synchronously control the moving distance of the two bottom sealing devices;

[0010] The swinging device is located between the two top sealing devices, and includes a linear moving module and two material suction plates, and one end of the linear moving module is close to the outside of the feeding rotary plate, and the two sliders of the linear moving module are provided with mounting plates, and the outsides of the two mounting plates are provided with lifting mechanisms, and the power output ends of the two lifting mechanisms are connected to the two material suction plates one by one, and one side of the material suction plate faces one side of the feeding rotary plate, and the linear moving module is used to control the moving distance of the two lifting mechanisms, and the two lifting mechanisms are used to respectively control the lifting height of the two material suction plates;

[0011] The feed turntable is arranged below the swinging device, and the feed turntable is close to the outside of the bottom sealing device. A plurality of battery clamps are arranged directly above the feed turntable. The plurality of battery clamps are evenly distributed around the top of the feed turntable, and arc grooves are arranged inside the plurality of battery clamps. The arc grooves are adapted to the battery cells of the cylindrical soft-pack lithium batteries. The feed turntable is used for supplying the cylindrical soft-pack lithium batteries to be sealed.

[0012] Preferably, the moving device includes a driving mechanism and a transmission screw, the transmission screw is rotatably arranged directly below the supporting plate, the driving mechanism is fixedly arranged on the outside of the supporting plate, and the power output end of the driving mechanism is transmission-connected to one end of the transmission screw, the outside of the transmission screw is sleeved with two moving vertical plates, and the bottoms of the two bottom sealing devices are connected one by one to the tops of the two moving vertical plates.

[0013] Preferably, when one of the top sealing devices is aligned and merged with one of the bottom sealing devices, the top sealing device and the bottom sealing device are merged to form a vacuum chamber.

[0014] Preferably, the bottom sealing device includes a supporting bottom plate, which is slidably arranged on one surface of the supporting flat plate, and sealing side plates are arranged around the top of the supporting bottom plate, and a placement plate and a liquid outlet plate are respectively arranged on the top of the supporting bottom plate, and the liquid outlet plate is adjacent to the placement plate, and a heat-sealing bottom plate is arranged between the liquid outlet plate and the placement plate, and a plurality of strip-shaped through grooves are evenly distributed on the liquid outlet plate, and a discharge arc groove is arranged on one side of the placement plate, and the discharge arc groove is used to place cylindrical soft-pack lithium batteries.

[0015] Preferably, the top sealing device includes a supporting top plate and a pushing mechanism, the supporting top plate is fixedly arranged directly above the supporting plate, the pushing mechanism is arranged on one side of the supporting top plate, and a movable plate is movably arranged on the other side of the supporting top plate, and sealing baffles are arranged around the bottom of the movable plate, the power output end of the pushing mechanism is connected to one side of the movable plate, and a piercing mechanism and a pressing mechanism are arranged on the movable plate, and a heat-sealing top plate is arranged 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 bayonets are arranged on the other side of the piercing plate.

[0016] Preferably, a clamping mechanism is also provided on the movable plate, and the clamping mechanism includes a lifting cylinder and a pressing plate. The lifting cylinder is arranged on the top of the movable plate, and the pressing plate is movably arranged at the bottom of the movable plate, and the power output end of the lifting cylinder is transmission-connected to one side of the pressing plate, the heat-sealing top plate is located between the puncture plate and the pressing plate, and a clamping arc groove is opened on the other side of the pressing plate.

[0017] Preferably, 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 swinging device, and one end of the other bottom sealing device is aligned with the feeding rotary plate.

[0018] Preferably, a drainage pipe is provided at the bottom of the supporting base plate, and one end of the drainage pipe faces directly below the liquid outlet plate.

[0019] Preferably, a rotating mechanism is also provided directly below the feed turntable, a power output end of the rotating mechanism is fixedly connected to the bottom of the feed turntable, and the rotating mechanism is used to control the rotation direction of the feed turntable.

[0020] Preferably, a plurality of adsorption through holes are provided on the outside of the absorption plate, and the plurality of adsorption through holes are distributed at intervals on the outside of the absorption plate. When one side of one of the absorption plate is aligned with the top of the feed transfer plate, the plurality of adsorption through holes correspond one-to-one to the plurality of battery clamps, and another side of the absorption plate is located directly above one of the bottom sealing devices.

[0021] Preferably, a transport plane is also provided on the outside of the supporting plate, one end of the transport plane is close to the other end of the linear moving module, and 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, and the transport plane is used to transport cylindrical soft-pack lithium batteries with completed edge sealing.

[0022] Preferably, a guide rail is also provided on the top of the supporting plate, and the two ends of the guide rail are respectively close to the two top sealing devices, and the two bottom sealing devices are both slidably connected to the guide rail, and a strip opening is opened on the surface of the supporting plate, and the strip opening is used for the movable vertical plate to extend.

[0023] Compared with the prior art, the present invention provides a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device, which has the beneficial effects of: by providing a bearing plate, two top sealing devices, two bottom sealing devices, a moving device, a swinging device, and a feeding rotating plate; the two top sealing devices are fixedly arranged directly above the bearing plate so that the two top sealing devices are flush with each other, the two bottom sealing devices are adjacent to the two top sealing devices one by one, and the two bottom sealing devices are slidably arranged on one side of the bearing plate, by arranging the moving device on the other side of the bearing plate, and the bottoms of the two bottom sealing devices are 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;

[0024] The swinging device is located between two top sealing devices, the swinging device includes a linear moving module and two suction plates, one end of the linear moving module is close to the outside of the feeding rotary plate, and mounting plates are provided on two sliders of the linear moving module, and lifting mechanisms are provided on the outside of the two mounting plates, and the power output ends of the two lifting mechanisms are connected to the two suction plates one by one, so that one side of the suction plate faces one side of the feeding rotary plate. Therefore, the linear moving module can be used to control the moving distance of the two lifting mechanisms, and the two lifting mechanisms are used to control the lifting height of the two suction plates respectively. The cylindrical soft-pack lithium batteries on the feeding rotary plate can be adsorbed and loaded onto the vacant bottom sealing device through the suction plate, thereby realizing automatic loading and unloading actions;

[0025] When one of the bottom sealing devices is aligned and merged with one of the top sealing devices, the vacuum cavity formed by the top sealing device and the bottom sealing device can be used to vacuum absorb and extract liquid from the cylindrical soft-pack lithium battery, and perform heat sealing. The suction plate at one end of the swing device can be aligned with the cylindrical soft-pack lithium battery on the feeding turntable to take the material and place the cylindrical soft-pack lithium battery on the bottom sealing device to control the action. The suction plate at the other end of the swing device can take out and drop several cylindrical soft-pack lithium batteries that have completed the heat sealing process in the other bottom sealing device, so that the exposed bottom sealing device is in an empty state, realizing the automatic edge sealing action of multiple cylindrical soft-pack lithium batteries in turn at a double-station, and realizing automatic loading and unloading synchronous action during the double-station rotation process, effectively improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

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

[0029] Figure 3 It is a structural schematic diagram of the material swinging device in the present invention.

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

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

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

[0033] Figure 7 It is a schematic diagram of the internal structure of the top sealing device in the present invention from another perspective.

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

[0035] Fig. 9 It is a schematic diagram of the structure of the puncturing mechanism in the present invention.

[0036] Fig.10 It is a schematic diagram of the structure of the pressing mechanism in the present invention.

[0037] As shown in the figure: 1. Carrying plate; 2. Top sealing device; 3. Bottom sealing device; 4. Moving device; 5. Swinging device; 6. Feeding rotating plate; 21. Supporting top plate; 22. Pushing mechanism; 23. Movable plate; 24. Sealing baffle; 25. Puncture 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 moving module; 52. Suction plate; 61. Battery clamp; 62. Rotating mechanism; 251. Piercing cylinder; 252. Piercing plate; 253. Strip bayonet; 281. Lifting cylinder; 282. Pressing plate; 283. Pressing arc groove; 331. Discharging arc groove; 341. Strip through groove; 510. Mounting plate; 511. Lifting mechanism; 521. Adsorption through hole. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0039] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

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

[0041] In the description of the present application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application; in addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features; thus, it is limited that "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly including one or more of the features.

[0042] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0043] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0044] refer to Figures 1 to 10 , a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device, comprising:

[0045] A carrying plate 1; two top sealing devices 2; two bottom sealing devices 3; a moving device 4; a swinging device 5; and a feeding rotating plate 6;

[0046] The two top sealing devices 2 are fixedly arranged directly above the carrying 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 one by one, and the two bottom sealing devices 3 are slidably arranged on one surface of the carrying plate 1, the moving device 4 is arranged on the other surface of the carrying plate 1, and the bottoms of the two bottom sealing devices 3 are connected to the power output end of the moving device 4, and the moving device 4 is used to synchronously control the moving distance of the two bottom sealing devices 3;

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

[0048] The feed turntable 6 is arranged below the swinging device 5, and the feed turntable 6 is close to the outside of the bottom sealing device 3. A plurality of battery clamps 61 are arranged directly above the feed turntable 6. The plurality of battery clamps 61 are evenly distributed around the top of the feed turntable 6, and arc grooves are arranged inside the plurality of battery clamps 61. The arc grooves are adapted to the battery cells of the cylindrical soft-pack lithium batteries. The feed turntable 6 is used to supply the cylindrical soft-pack lithium batteries to be sealed.

[0049] Specifically, the moving device 4 includes a driving mechanism 41 and a transmission screw 42. The transmission screw 42 is rotatably arranged directly below the supporting plate 1. The driving mechanism 41 is fixedly arranged on the outside of the supporting plate 1, and the power output end of the driving mechanism 41 is transmission-connected to one end of the transmission screw 42. The outside of the transmission screw 42 is sleeved with two moving vertical plates 43, and the bottoms of the two bottom sealing devices 3 are connected one by one to the tops of the two moving vertical plates 43.

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

[0051] Specifically, the bottom sealing device 3 includes a supporting bottom plate 31, which is slidably arranged on one surface of the supporting flat plate 1, and sealing side plates 32 are arranged around the top of the supporting bottom plate 31, and a placement plate 33 and a liquid outlet plate 34 are respectively arranged on the top of the supporting bottom plate 31, and the liquid outlet plate 34 is adjacent to the placement plate 33, and a heat sealing bottom plate 35 is arranged between the liquid outlet plate 34 and the placement plate 33, and a plurality of strip-shaped through grooves 341 are evenly distributed on the liquid outlet plate 34, and a discharge arc groove 331 is arranged on one side of the placement plate 33, and the discharge arc groove 331 is used to place cylindrical soft-pack lithium batteries.

[0052] Specifically, the top sealing device 2 includes a supporting top plate 21 and a pushing mechanism 22. The supporting top plate 21 is fixedly arranged directly above the supporting plate 1, and the pushing mechanism 22 is arranged on one side of the supporting top plate 21. A movable plate 23 is movably arranged on the other side of the supporting top plate 21. Sealing baffles 24 are arranged around the bottom of the movable plate 23. The power output end of the pushing mechanism 22 is connected to one side of the movable plate 23, and a piercing mechanism 25 and a pressing mechanism 26 are arranged on the movable plate 23. A heat-sealing top plate 27 is arranged on the power output end of the pressing mechanism 26. The piercing mechanism 25 includes 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, a clamping mechanism 28 is also provided on the movable plate 23, and the clamping mechanism 28 includes a lifting cylinder 281 and a pressing plate 282. The lifting 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, and the power output end of the lifting cylinder 281 is transmission-connected to one side of the pressing plate 282, and the heat-sealing top plate 27 is located between the puncture plate 252 and the pressing plate 282, and a clamping arc groove 283 is opened on the other side of the pressing plate 282.

[0054] Specifically, 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 located directly below the swinging device 5 , and one end of the other bottom sealing device 3 is aligned with the feeding rotary plate 6 .

[0055] Specifically, a drainage pipe is provided at the bottom of the supporting bottom plate 31 , and one end of the drainage pipe faces directly below the liquid outlet plate 34 .

[0056] Specifically, a rotating mechanism 62 is further provided directly below the feed rotary plate 6 , a power output end of the rotating mechanism 62 is fixedly connected to the bottom of the feed rotary plate 6 , and the rotating mechanism 62 is used to control the rotation direction of the feed rotary plate 6 .

[0057] Specifically, a plurality of adsorption through holes 521 are provided on the outside of the absorption plate 52, and the plurality of adsorption through holes 521 are distributed at intervals on the outside of the absorption plate 52. When one side of the absorption plate 52 is aligned with the top of the feed transfer plate 6, the plurality of adsorption through holes 521 correspond one-to-one with the plurality of battery clamps 61, and another side of the absorption plate 52 is located directly above one of the bottom sealing devices 3.

[0058] Specifically, a transport plane is also provided on the outside of the carrying plate 1, one end of the transport plane is close to the other end of the linear moving module 51, and when one of the suction plates 52 is located directly above the bottom sealing device 3, the other suction plate 52 is located directly above the transport plane, and the transport plane is used to transport cylindrical soft-pack lithium batteries with completed edge sealing.

[0059] Specifically, a guide rail is also provided on the top of the supporting plate 1, and the two ends of the guide rail are respectively close to the two top sealing devices 2, and the two bottom sealing devices 3 are both slidably connected to the guide rail, and a strip opening is opened on the surface of the supporting plate 1, and the strip opening is used for the movable vertical plate 43 to extend out.

[0060] Embodiment 1

[0061] In order to realize the automatic edge sealing of multiple cylindrical soft-pack lithium batteries, in this embodiment: a carrying plate 1, two top sealing devices 2, two bottom sealing devices 3, a moving device 4, a swinging device 5, and a feeding rotating plate 6 are provided, the two top sealing devices 2 are fixedly arranged directly above the carrying plate 1, the two top sealing devices 2 are also aligned, the two bottom sealing devices 3 are adjacent to the two top sealing devices 2 one by one, the swinging 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 carrying plate 1, and the moving device 4 is arranged on the other side of the carrying plate 1, so that the bottoms of the two bottom sealing devices 3 are aligned with the two top sealing devices 2. The power output end of the moving device 4 is connected, and the moving device 4 can be used to synchronously control the moving distance of the two bottom sealing devices 3, so that 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 directly below the swinging device 5, so that the swinging device 5 can take out the cylindrical soft-pack lithium battery that has been heat-sealed in the bottom sealing device 3, so that the bottom sealing device 3 is in an empty state, so that the cylindrical soft-pack lithium battery to be sealed can be taken out from the feeding turntable 6 and placed in the empty bottom sealing device 3, effectively realizing the automatic heat sealing of multiple cylindrical soft-pack lithium batteries through double stations, thereby improving work efficiency.

[0062] 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 bottom sealing device 3 is aligned with the swinging device 5; when another bottom sealing device 3 is aligned with another top sealing device 2, one of the bottom sealing devices 3 is aligned with the swinging device 5.

[0063] It should be noted that the bottom sealing device 3 includes a supporting bottom plate 31, which is slidably arranged on one surface of the supporting flat plate 1, and sealing side plates 32 are arranged around the top of the supporting bottom plate 31. A placement plate 33 and a liquid outlet plate 34 are respectively arranged on the top of the supporting bottom plate 31, and 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, and a plurality of strip-shaped through grooves 341 are evenly distributed on the liquid outlet plate 34, and a discharge arc groove 331 is arranged on one side of the placement plate 33, and the discharge arc groove 331 is used to place cylindrical soft-pack lithium batteries.

[0064] It should be noted that the top sealing device 2 includes a supporting top plate 21 and a pushing mechanism 22. The supporting top plate 21 is fixedly arranged just above the carrying plate 1, and the pushing mechanism 22 is also arranged on one side of the supporting top plate 21. A movable plate 23 is movably arranged on the other side of the supporting top plate 21. Sealing baffles 24 are arranged around the bottom of the movable plate 23. The power output end of the pushing mechanism 22 is connected to one side of the movable plate 23. The movable plate 23 can be driven downward by the pushing mechanism 22 to move toward the bottom sealing device 3 aligned with the top sealing device 2. When moving toward the bottom sealing device 3 aligned with the top sealing device 2, since the movable plate 23 is provided with a puncturing mechanism 25 and a pressing mechanism 26, the aluminum-plastic composite film of the cylindrical soft-pack lithium battery is punctured by the puncturing mechanism 25, so that the cylindrical soft-pack lithium battery is in the vacuum cavity within the top sealing device 2 and the bottom sealing device 3, and the excess electrolyte inside the battery can flow out through the punctured pupils during the vacuum extraction process, and a heat-sealing top plate 27 is provided on the power output end of the pressing mechanism 26, which can be driven by the pressing mechanism 26 to move the heat-sealing top plate 27 and perform edge sealing on the cylindrical soft-pack lithium battery in the bottom sealing device 3.

[0065] It should also be noted that the puncturing mechanism 25 includes a puncturing cylinder 251 and a puncturing plate 252, one side of the puncturing plate 252 is fixed on the power output end of the puncturing cylinder 251, and a plurality of strip bayonets 253 are arranged on the other side of the puncturing plate 252; therefore, the puncturing cylinder 251 can drive the puncturing plate to puncture the aluminum-plastic composite film of the cylindrical soft-pack lithium battery in the bottom sealing device 3, and cooperate with the vacuum pumping action of the vacuum cavity to facilitate the extraction of excess electrolyte inside the cylindrical soft-pack lithium battery.

[0066] It is particularly noted that when the bottom sealing device 3 and the top sealing device 2 are aligned, that is, 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 toward 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 achieve the upper and lower heating and edge sealing action of the aluminum-plastic composite film of the cylindrical soft-pack lithium battery, thereby improving the edge sealing efficiency.

[0067] 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, it is necessary to ensure the sealing of the contact position between the top sealing device 2 and the bottom sealing device 3. This can be achieved by providing sealing side plates 32 around the top of the supporting bottom plate 31, and by providing sealing baffles 24 around the bottom of the movable plate 23. When the top sealing device 2 and the bottom sealing device 3 are aligned and merged, 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 aligned and merged with the sealing baffle 24, and the side opposite to the sealing side plate 32 and the sealing baffle 24 is kept straight to ensure that the side opposite to the sealing side plate 32 and the sealing baffle 24 are completely fitted when they are aligned and abutted, so that when the aligned inner cavity of the bottom sealing device 3 is merged with the inner cavity of the top sealing device 2, the sealing structure is maintained, which is convenient for subsequent vacuuming of the cavity formed by the merging of the bottom sealing device 3 and the top sealing device 2.

[0068] In order to achieve the vacuuming action of multiple cylindrical soft-pack lithium batteries inside the vacuum cavity, a vacuuming pipe can be provided on the bottom sealing device 3, and then 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 inside of the vacuum cavity can be vacuumed to ensure that the vacuum cavity is in a vacuum state, so as to facilitate the subsequent extraction of excess electrolyte from the punctured cylindrical soft-pack lithium batteries. It is necessary to ensure that it is in a vacuum state of minus 90°, and the extraction time is 8 seconds.

[0069] After the liquid extraction and edge sealing are completed, it is necessary to break the vacuum in the vacuum cavity. To achieve the vacuum breaking action, a gas pipeline can be provided on the bottom sealing device 3. When the vacuum cavity formed by 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 puncture extraction and secondary edge sealing actions, gas can be supplied to the vacuum cavity through the gas pipeline to achieve the vacuum breaking action, so as to facilitate the resetting of the top sealing device 2, and then separate the top sealing device 2 from the bottom sealing device 3, so as to facilitate the subsequent movement and loading of the bottom sealing device 3.

[0070] It should be noted that, since the core of the cylindrical soft-pack lithium battery is cylindrical, it is necessary to prevent the position of the cylindrical soft-pack lithium battery from being offset before edge sealing to ensure the heat sealing effect of the cylindrical soft-pack lithium battery. A pressing mechanism 28 is also provided on the movable plate 23, and the pressing mechanism 28 includes a lifting cylinder 281 and a pressing plate 282. The lifting 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 is connected to one side of the press plate 282, so that the heat sealing top plate 27 is located between the piercing plate 252 and the press plate 282. A clamping arc groove 283 is provided on the other side of the press plate 282. The press plate 282 can be lifted up by the power output end of the lifting cylinder 281. When the power output end of the lifting cylinder 281 is retracted, the press plate 282 can be pressed down and moved, thereby realizing that the lifting cylinder 281 controls the lifting height of the press plate 282.

[0071] By providing a discharge arc groove 331 on one side of the placement plate 33, the discharge arc groove 331 is used to place the cylindrical soft-pack lithium battery. When the bottom sealing device 3 and the top sealing device 2 are aligned, one side of the placement 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 down, the cylindrical soft-pack lithium battery on the placement plate 33 can be clamped and pressed, which effectively prevents the position of the cylindrical soft-pack lithium battery from being offset due to the rotation of the cylindrical battery cell during heat sealing.

[0072] In view of the above description, it should be added that a plurality of compression arc grooves 283 and discharge arc grooves 331 can be provided, and the plurality of discharge arc grooves 331 can correspond one to one with the plurality of compression arc grooves, and then when the top sealing device 2 and the bottom sealing device 3 are aligned and merged, the plurality of compression arc grooves can be moved one by one toward the plurality of discharge arc grooves 331 to achieve the effect of clamping and fixing the battery cells of the cylindrical soft-pack lithium battery.

[0073] It should also be added that in order to prevent the cylindrical soft-pack lithium battery from being deformed and damaged due to direct collision caused by high downward pressure, an elastic buffer structure can be provided between the pressing plate 282 and the power output end of the lifting cylinder 281 to achieve a buffering effect.

[0074] Embodiment 2

[0075] In order to realize the edge sealing action of a plurality of cylindrical soft-pack lithium batteries in a double-station rotation in turn during the continuous production process, and realize the automatic loading and unloading synchronous action before the station conversion to improve the work efficiency, in this embodiment: a carrying plate 1; two top sealing devices 2, two bottom sealing devices 3, a moving device 4, a swinging device 5, and a feeding turntable 6 are provided; the two top sealing devices 2 are fixedly arranged just above the carrying plate 1, so that the two top sealing devices 2 are flush with each other, and the two bottom sealing devices 3 are adjacent to the two top sealing devices 2 one by one, and the two bottom sealing devices 3 are slidably arranged on one side of the carrying plate 1, and the moving device 4 is arranged on the other side of the carrying plate 1, and the bottoms of the two bottom sealing devices 3 are connected to the power output end of the moving device 4, so that the moving distance of the two bottom sealing devices 3 can be synchronously controlled by the moving device 4;

[0076] The swinging device 5 is located between the two top sealing devices 2, and the swinging device 5 includes a linear moving module 51 and two suction plates 52, so that one end of the linear moving module 51 is close to the outside of the feeding rotary plate 6, and by arranging mounting plates 510 on the two sliding blocks of the linear moving module 51, and by arranging lifting mechanisms 511 on the outside of the two mounting plates 510, the power output ends of the two lifting mechanisms 511 are connected to the two suction plates 52 one by one, so that one side of the suction plate 52 faces one side of the feeding rotary plate 6, and the linear moving module 51 is used to control the moving distance of the two lifting mechanisms 511, and the two lifting mechanisms 511 can also be used to control the lifting height of the two suction plates 52 respectively, so that the two lifting mechanisms 511 can be respectively located above the bottom sealing device 3 and above the feeding rotary plate 6, thereby driving the two suction plates 52 to perform loading and unloading actions;

[0077] 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 located below the swinging device 5, and then one of the suction plates 52 of the swinging device 5 can be used to absorb and discharge the cylindrical soft-pack lithium battery whose edge sealing has been completed in the other bottom sealing device 3. In this process, the other bottom sealing device 3 can be placed in an empty state, and then the other suction plate 52 of the swinging device 5 can place the cylindrical soft-pack lithium battery to be edge-sealed on the feeding rotary plate 6 in the empty bottom sealing device 3, effectively realizing the double-station rotation edge sealing action of several cylindrical soft-pack lithium batteries, and in the rotation edge sealing process, the empty bottom sealing device 3 can be loaded and unloaded by the swinging device 5, effectively improving the work efficiency.

[0078] With respect to this embodiment, it should be noted that the moving device 4 includes a driving mechanism 41 and a transmission screw 42. The transmission screw 42 is rotatably arranged directly below the supporting plate 1, and the driving mechanism 41 is also fixedly arranged on the outside of the supporting plate 1, so that the power output end of the driving mechanism 41 is transmission-connected with one end of the transmission screw 42, and two movable vertical plates 43 are sleeved on the outside of the transmission screw 42, so that the bottoms of the two bottom sealing devices 3 are connected one by one with the tops of the two movable vertical plates 43; therefore, when the driving mechanism 41 rotates, the transmission screw 42 is driven to rotate, thereby realizing the screw transmission structure, and the two movable vertical plates 43 are driven to move by the transmission screw 42, and during the movement of the movable vertical plates 43, the bottom sealing device 3 is driven to move.

[0079] It is particularly noteworthy that in order to facilitate the smooth movement of the bottom sealing device 3 on the supporting plate 1 to align with the top sealing device 2, a guide rail can be provided on the top of the supporting plate 1, and the two ends of the guide rail can be respectively close to the two top sealing devices 2, and the two bottom sealing devices 3 can be slidably connected to the guide rail, and a strip opening is opened on the surface of the supporting plate 1, and the strip opening is used for the mobile vertical plate 43 to extend out. The mobile vertical plate 43 can be moved through the strip opening, thereby effectively facilitating the smooth movement of the bottom sealing device 3 on the supporting plate 1.

[0080] Embodiment 3

[0081] In order to automatically grab the cylindrical soft-pack lithium battery into the empty bottom sealing device 3, and automatically grab and unload the cylindrical soft-pack lithium battery that has been heat-sealed in the bottom sealing device 3, so that the bottom sealing device 3 is in an empty state, in this embodiment: a carrying plate 1; two top sealing devices 2, two bottom sealing devices 3, a moving device 4, a swinging device 5, and a feeding rotating plate 6 for supplying cylindrical soft-pack lithium batteries to be sealed are provided; the swinging device 5 is located between the two top sealing devices 2, and the swinging device 5 includes a linear moving module 51 and two suction plates 52, so that One end of the linear moving module 51 is close to the outside of the feeding rotary plate 6. By providing mounting plates 510 on the two sliders of the linear moving module 51, and by providing lifting mechanisms 511 on the outside of the two mounting plates 510, the power output ends of the two lifting mechanisms 511 are connected to the two material suction plates 52 one by one, so that one side of the material suction plate 52 faces one side of the feeding rotary plate 6. The linear moving module 51 can be used to control the moving distance of the two lifting mechanisms 511, and the two lifting mechanisms 511 can also be used to control the lifting height of the two material suction plates 52 respectively.

[0082] It is particularly noted that the linear moving module 51 can adopt a double-slider moving module, and the two mounting plates 510 are arranged one by one on the two sliders of the linear moving module 51, so that one linear moving module 51 can control the synchronous movement of the two mounting plates 510, and the cylindrical soft-pack lithium battery with completed edge sealing in the bottom sealing device 3 directly below the swinging device 5 can be taken out by another suction plate 52, so that the bottom sealing device 3 is in an empty state, so that one of the suction plates 52 can place the cylindrical soft-pack lithium battery to be sealed in the empty bottom sealing device 3, that is, the two suction plates 52 move synchronously, so that the automatic loading and unloading synchronous action can be realized, thereby improving work efficiency.

[0083] It should be noted that the bottom sealing device 3 includes a supporting bottom plate 31, which is slidably arranged on one side of the supporting flat plate 1, and a sealing side plate 32 is arranged around the top of the supporting bottom plate 31, and a placement plate 33 and a liquid outlet plate 34 are respectively arranged on the top of the supporting bottom plate 31, so that the liquid outlet plate 34 is adjacent to the placement plate 33, and a heat sealing bottom plate 35 is arranged between the liquid outlet plate 34 and the placement plate 33, and a plurality of strip through grooves 341 are evenly distributed on the liquid outlet plate 34, which can limit and repair the strip bayonet 253. The positive effect ensures that the strip bayonet 253 extends out when pressed down to complete the puncturing action. When the strip bayonet 253 is punctured and reset, the inner wall of the strip through groove 341 can contact the outside of the strip bayonet 253 to reduce the mucus of the strip bayonet 253. A discharge arc groove 331 is also provided on one side of the plate 33. Therefore, the discharge arc groove 331 can be used to place the cylindrical soft-pack lithium battery to achieve a stable placement of the cylindrical soft-pack lithium battery, ensure that the cylindrical soft-pack lithium battery will not be offset during the edge sealing process, and effectively ensure the production quality of the cylindrical soft-pack lithium battery.

[0084] 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 located directly below the swinging device 5, and one end of the other bottom sealing device 3 is aligned with the feeding turntable 6, so that the swinging device 5 can conveniently remove and discharge the cylindrical soft-pack lithium batteries with edge sealing completed in the other bottom sealing device 3, so that the other bottom sealing device 3 is in an empty state, which is convenient for the subsequent placement of the cylindrical soft-pack lithium batteries to be sealed inside the bottom sealing device 3.

[0085] It should be noted that in order to realize the conveying of cylindrical soft-pack lithium batteries with completed edge sealing, a transportation plane is also provided on the outside of the supporting plate 1, and one end of the transportation plane is close to the other end of the linear moving module 51. When one of the suction plates 52 is located directly above the bottom sealing device 3, the other suction plate 52 is located directly above the transportation plane. That is, when one of the suction plates 52 adsorbs the cylindrical soft-pack lithium battery to be sealed on the feeding transfer plate 6 and moves it to the top of the empty bottom sealing device 3, the other suction plate 52 places the cylindrical soft-pack lithium battery with completed edge sealing directly above the transportation plane, thereby effectively conveying the cylindrical soft-pack lithium battery with completed edge sealing through the transportation plane, thereby improving the automation efficiency.

[0086] Embodiment 4

[0087] In order to realize automatic feeding and placing in a large-scale continuous production process, in this embodiment: a feeding rotary plate 6 and a swinging device 5 are provided, the feeding rotary plate 6 is provided below the swinging device 5, and the feeding rotary plate 6 is also close to the outside of the bottom sealing device 3, and a plurality of battery clamps 61 are provided just above the feeding rotary plate 6, so that the plurality of battery clamps 61 are evenly distributed around the top of the feeding rotary plate 6, and arc grooves are provided inside the plurality of battery clamps 61, and the arc grooves are adapted to the battery cells of the cylindrical soft-pack lithium battery, so that the cylindrical soft-pack lithium battery to be sealed can be supplied through the feeding rotary plate 6;

[0088] A rotating mechanism 62 is provided directly below the feeding rotating plate 6, and the power output end of the rotating mechanism 62 is fixedly connected to the bottom of the feeding rotating plate 6, so that the rotating mechanism 62 is used to control the rotation direction of the feeding rotating plate 6;

[0089] It should be noted that, by providing a plurality of adsorption through holes 521 on the outside of the suction plate 52, the plurality of adsorption through holes 521 are distributed at intervals on the outside of the suction plate 52. When one side of one of the suction plate 52 is aligned with the top of the feed turntable 6, the plurality of adsorption through holes 521 correspond one-to-one with the plurality of battery clamps 61. Another side of the suction plate 52 is located directly above one of the bottom sealing devices 3. Therefore, the cylindrical soft-pack lithium battery adsorption and material removal operation can be performed by aligning the plurality of adsorption through holes 521 of the suction plate 52 with the plurality of battery clamps 61 of the feed turntable 6.

[0090] It should also be noted that the feed turntable 6 can adopt a square structure as an integral molding structure, and a plurality of battery clamps 61 can be evenly distributed around the top of the feed plate. When the rotating mechanism 62 drives one side of the feed turntable 6 to align with one end of the linear moving module 51, the swing device 5 can drive one of the suction plates 52 to adsorb and remove the cylindrical soft-pack lithium batteries on one side of the feed turntable 6. At this time, the feed turntable 6 can be rotated again by the rotating mechanism 62 to align the lower side of the feed turntable 6 with one end of the linear moving module 51 again, thereby effectively removing the empty battery clamp 61 of the feed turntable 6 for loading, and aligning the fully loaded battery clamp 61 with the swing device 5, so that the swing device 5 can remove and unload the cylindrical soft-pack lithium batteries that have been heat-sealed.

[0091] In combination with the description of this embodiment, it should be supplemented that the rotating mechanism 62 can adopt a servo motor, and the rotating mechanism 62 can drive the feeding turntable 6 to rotate, so that one side of the feeding turntable 6 is aligned with the vacant bottom sealing device 3, and the linear moving module 51 of the swinging device 5 drives the suction plate 52 to be located directly above the feeding turntable 6, and drives the suction plate 52 to move toward the battery clamp 61 on the feeding turntable 6 through the lifting mechanism 511, and the multiple cylindrical soft-pack lithium batteries on the feeding turntable 6 in the same linear array are sucked through the suction holes 521 of the suction plate 52. The cell performs synchronous adsorption and material taking action, the power output end of the lifting mechanism 511 retracts, driving the suction plate 52 to rise, completing the multiple battery taking-out actions. At this time, the rotating mechanism 62 rotates again, so that the several battery clamps 61 on the other side of the feeding turntable 6 are again under one end of the linear moving module 51, and the linear moving module 51 drives the suction plate 52 to move and align with the empty bottom sealing device 3 again, thereby completing the automatic material swinging action, effectively realizing the automatic feeding and placement of cylindrical soft-pack lithium batteries in the continuous production process.

[0092] Embodiment 5

[0093] In combination with the first embodiment, in order to realize automatic puncturing of the aluminum-plastic composite film of the cylindrical soft-pack lithium battery to facilitate the subsequent vacuum extraction and prevent the sticky electrolyte on the outside of the strip bayonet 253 from dripping on the battery surface to cause battery contamination, during the puncturing of the aluminum-plastic film of the cylindrical soft-pack lithium battery, the bayonet extends into the interior of the aluminum-plastic film, which will cause the bayonet to become sticky, and the electrolyte dripping from the bayonet will contaminate the battery surface. In this embodiment: two top sealing devices 2 and two bottom sealing devices 3 are provided. When one of the top sealing devices 2 is aligned 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. The top sealing device 2 includes a supporting top plate 21 and a pushing mechanism. 22, the support top plate 21 is fixedly arranged just above the carrying plate 1, the pushing mechanism 22 is arranged on one side of the support top plate 21, and a movable plate 23 is movably arranged on the other side of the support top plate 21, and sealing baffles 24 are arranged around the bottom of the movable plate 23. The power output end of the pushing mechanism 22 is connected to one side of the movable plate 23, and a piercing mechanism 25 and a pressing mechanism 26 are arranged on the movable plate 23. A heat-sealing top plate 27 is arranged on the power output end of the pressing mechanism 26. The piercing mechanism 25 includes 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.

[0094] It should be noted that in order to ensure uniform force during the puncturing process, two puncturing mechanisms 25 can be provided, and the two puncturing mechanisms 25 can be adjacent to each other, and each puncturing mechanism 25 can be provided with two puncturing cylinders 251, and the two puncturing cylinders 251 can be symmetrically arranged on one side of the puncturing plate 252, and the power output ends of the two puncturing cylinders 251 are connected to one side of the puncturing plate 252, thereby ensuring that the puncturing plate 252 is uniformly stressed during the downward pressure puncturing process, ensuring that the multiple strip bayonets 253 are uniformly stressed.

[0095] It should also be noted that the bottom sealing device 3 includes a supporting bottom plate 31, and the supporting bottom plate 31 is slidably arranged on one surface of the supporting flat plate 1. By arranging sealing side plates 32 around the top of the supporting bottom plate 31, when the top sealing device 2 is aligned and merged with the bottom sealing device 3, the sealing side plates 32 can be aligned with the sealing baffle 24, and the inner cavity of the bottom sealing device 3 is merged with the inner cavity of the top sealing device 2 to form a vacuum cavity. By arranging a placement plate 33 and a liquid outlet plate 34 on the top of the supporting bottom plate 31, the liquid outlet plate 34 is adjacent to the placement plate 33. Recently, a heat-sealing bottom plate 35 is provided between the liquid outlet plate 34 and the placement plate 33. After the liquid is punctured and discharged, the aluminum-plastic composite film of the cylindrical soft-pack lithium battery can be clamped and heat-sealed on both sides through the heat-sealing bottom plate 35 and the heat-sealing top plate 27. A plurality of strip-shaped through grooves 341 are evenly distributed on the liquid outlet plate 34, and a discharge arc groove 331 is provided on one side of the placement plate 33. The discharge arc groove 331 can be used to place the cylindrical soft-pack lithium battery to ensure that the cylindrical soft-pack lithium battery remains stable when in the bottom sealing device 3 without positional displacement.

[0096] In view of the above description, as a further supplement, a movable guide plate can be arranged directly below the puncture plate 252, and a plurality of limit slots for the strip bayonets 253 to extend one by one are opened on the surface of the movable guide plate, so that the strip bayonet 253 can extend to contact the surface of the cylindrical soft-pack lithium battery aluminum-plastic film on the bottom sealing device 3 to perform a puncturing action, so that one side of the movable guide plate is elastically connected to the bottom of the puncture plate 252, and one side of the movable guide plate can also be facing the liquid outlet plate 34 of the bottom sealing device 3. During the downward pressing process of the puncture plate 252, the movable guide plate and the liquid outlet plate 34 can clamp and fix the two sides of the aluminum-plastic composite film of the soft-pack cylindrical lithium battery, ensuring that the aluminum-plastic composite film of the cylindrical soft-pack lithium battery is kept straight during the puncturing process, and no bending deformation will occur to affect the puncturing effect.

[0097] With respect to the above description, further limitations are made. The limiting groove and the strip groove 341 can be used to facilitate the extension of the strip bayonet 253 for puncturing, and the limiting groove and the strip groove 341 can be set to sizes that match the strip bayonet 253, so that the electrolyte will not adhere to the surface of the strip bayonet 253 during the resetting process of the strip bayonet 253, thereby preventing the electrolyte from dripping from the strip bayonet 253 and contaminating the battery surface.

[0098] It should also be noted that, by providing a drainage pipe at the bottom of the supporting bottom plate 31, with one end of the drainage pipe facing directly below the liquid outlet plate 34, a liquid outlet through hole can be opened in the supporting bottom plate 31, so as to facilitate connecting the end of the drainage pipe 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 puncturing mechanism 25 punctures the cylindrical soft-pack lithium battery on the bottom sealing device 3, excess electrolyte can flow into the drainage pipe through the liquid outlet plate 34 and be discharged.

[0099] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For the part that is not described in detail in a certain embodiment, refer to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the description are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0100] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A cylindrical soft-pack lithium battery double-cavity automatic edge sealing device, characterized in that: include: Loading plate; 2 top sealing devices; 2 bottom sealing devices; Mobile devices; Swinging device; and a feeding transfer plate; The two top sealing devices are fixedly arranged directly above the carrying 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 one by one, and the two bottom sealing devices are slidably arranged on one surface of the carrying plate, the moving device is arranged on the other surface of the carrying plate, and the bottoms of the two bottom sealing devices are connected to the power output end of the moving device, and the moving device is used to synchronously control the moving distance of the two bottom sealing devices; The swinging device is located between the two top sealing devices, and the swinging device includes a linear moving module and two material suction plates, and one end of the linear moving module is close to the outside of the feeding rotary plate, and the two sliders of the linear moving module are provided with mounting plates, and the outsides of the two mounting plates are provided with lifting mechanisms, and the power output ends of the two lifting mechanisms are connected to the two material suction plates one by one, and one side of the material suction plate faces one side of the feeding rotary plate, and the linear moving module is used to control the moving distance of the two lifting mechanisms, and the two lifting mechanisms are used to respectively control the lifting height of the two material suction plates; The feed turntable is arranged below the swinging device, and the feed turntable is close to the outside of the bottom sealing device. A plurality of battery clamps are arranged directly above the feed turntable. The plurality of battery clamps are evenly distributed around the top of the feed turntable, and arc grooves are arranged inside the plurality of battery clamps. The arc grooves are adapted to the battery cells of cylindrical soft-pack lithium batteries. The feed turntable is used for supplying cylindrical soft-pack lithium batteries to be sealed.

2. According to claim 1, a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device is characterized in that: The moving device includes a driving mechanism and a transmission screw, the transmission screw is rotatably arranged directly below the supporting plate, the driving mechanism is fixedly arranged outside the supporting plate, and the power output end of the driving mechanism is transmission-connected to one end of the transmission screw, the outside of the transmission screw is sleeved with two moving vertical plates, and the bottoms of the two bottom sealing devices are connected one by one to the tops of the two moving vertical plates.

3. According to claim 1, a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device is characterized in that: When one of the top sealing devices is aligned and merged with one of the bottom sealing devices, the top sealing device and the bottom sealing device are merged to form a vacuum cavity.

4. According to claim 1, a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device is characterized in that: The bottom sealing device includes a supporting bottom plate, which is slidably arranged on one surface of the supporting flat plate, and sealing side plates are arranged around the top of the supporting bottom plate, and a placement plate and a liquid outlet plate are respectively arranged on the top of the supporting bottom plate, and the liquid outlet plate is adjacent to the placement plate, and a heat-sealing bottom plate is arranged between the liquid outlet plate and the placement plate, and a plurality of strip-shaped through grooves are evenly distributed on the liquid outlet plate, and a material discharge arc groove is arranged on one side of the placement plate, and the material discharge arc groove is used to place cylindrical soft-pack lithium batteries.

5. According to claim 1, a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device is characterized in that: The top sealing device includes a supporting top plate and a pushing mechanism, the supporting top plate is fixedly arranged directly above the carrying plate, the pushing mechanism is arranged on one side of the supporting top plate, and a movable plate is movably arranged on the other side of the supporting top plate, and sealing baffles are arranged around the bottom of the movable plate, the power output end of the pushing mechanism is connected to one side of the movable plate, and a piercing mechanism and a pressing mechanism are arranged on the movable plate, and a heat-sealing top plate is arranged 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 on the power output end of the piercing cylinder, and a plurality of strip bayonets are arranged on the other side of the piercing plate.

6. According to claim 5, a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device is 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 arranged on the top of the movable plate, and the pressing plate is movably arranged at the bottom of the movable plate. The power output end of the lifting cylinder is transmission-connected to one side of the pressing plate. The heat-sealing top plate is located between the puncture plate and the pressing plate, and a clamping arc groove is opened on the other side of the pressing plate.

7. According to claim 1, a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device is 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 swinging device, and one end of the other bottom sealing device is aligned with the feeding rotary plate.

8. According to claim 4, a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device is characterized in that: A drainage pipe is arranged at the bottom of the supporting bottom plate, and one end of the drainage pipe faces directly below the liquid outlet plate.

9. According to claim 1, a cylindrical soft-pack lithium battery double-cavity automatic edge sealing device, characterized in that: A rotating mechanism is also provided directly below the feed rotating plate, a power output end of the rotating mechanism is fixedly connected to the bottom of the feed rotating plate, and the rotating mechanism is used to control the rotation direction of the feed rotating plate.

10. The cylindrical soft-pack lithium battery double-cavity automatic edge sealing device according to claim 1, characterized in that: A plurality of adsorption through holes are arranged on the outside of the absorption plate, and the plurality of adsorption through holes are distributed at intervals on the outside of the absorption plate. When one side of one of the absorption plate is aligned with the top of the feed transfer plate, the plurality of adsorption through holes correspond one-to-one to the plurality of battery clamps, and one side of another absorption plate is located directly above one of the bottom sealing devices.

11. The cylindrical soft-pack lithium battery double-cavity automatic edge sealing device according to claim 1, characterized in that: A transport plane is also provided on the outside of the carrying plate, one end of the transport plane is close to the other end of the linear moving module, and 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, and the transport plane is used to transport cylindrical soft-pack lithium batteries with completed edge sealing.

12. The cylindrical soft-pack lithium battery double-cavity automatic edge sealing device according to claim 2, characterized in that: A guide rail is also provided on the top of the supporting plate, and the two ends of the guide rail are respectively close to the two top sealing devices, and the two bottom sealing devices are slidably connected to the guide rail, and a strip opening is opened on the surface of the supporting plate, and the strip opening is used for the movable vertical plate to extend.

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