An automatic edge-sealing device for button-type soft-pack lithium batteries and its production line

Abstract

The present invention relates to the technical field of battery production equipment, and particularly discloses a button-type soft-pack lithium battery automatic edge-sealing device and its production line, which includes a fixed flat plate, a picking and placing device, N heat-sealing devices, and M moving carrier plates; both N and M are integers greater than or equal to 2. The N heat-sealing devices are all fixed on the fixed flat plate and are aligned with each other. The picking and placing device is located directly above the fixed flat plate. The M moving carrier plates are close to the N heat-sealing devices one by one. One side of each of the M moving carrier plates faces the picking and placing device, and the other side of each of the M moving carrier plates is slidably arranged on the fixed flat plate. The heat-sealing device includes a top-sealing mechanism and a bottom-sealing mechanism, and the top-sealing mechanism is aligned with the bottom-sealing mechanism. The two ends of the fixed flat plate are located between the top-sealing mechanism and the bottom-sealing mechanism, effectively achieving the full-automatic secondary edge-sealing operation of the button-type soft-pack lithium battery and improving the work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and particularly to an automatic edge-sealing device for a button-type soft-pack lithium battery and its production line. Background Art

[0002] A soft-pack lithium battery generally refers to a lithium battery encapsulated with an aluminum-plastic composite film as the outer shell. The soft-pack lithium battery has the characteristics of light weight and high safety. When there are potential safety hazards in the soft-pack lithium battery, since the outer shell is encapsulated with an aluminum-plastic composite film, only bulging and cracking will occur, and there will be no violent explosion.

[0003] A button battery, also known as a button-type battery, refers to a battery with a button-like external dimension. Generally, it has a relatively large diameter and a relatively thin thickness. However, due to the use of a metal shell for encapsulation, it will result in a relatively heavy weight, and in case of potential safety hazards in the battery, an explosion will occur. Therefore, in order to achieve the effects of reducing weight and improving safety for existing button batteries, most of them adopt a soft-pack type of encapsulation structure, that is, a button-type battery core is used, and an aluminum-plastic composite film is wrapped outside the button-type battery core. After injecting electrolyte into the film opening, it is encapsulated. After the first encapsulation is completed, the excess electrolyte in the aluminum-plastic composite film needs to be extracted, and then the battery with injected electrolyte is subjected to secondary encapsulation. For existing second-sealing devices for button-type soft-pack lithium batteries, most of them use the method of manual loading and unloading to place the batteries in the edge-sealing die cavity. During the placement process, it is impossible to ensure the accurate placement position of the batteries, which will cause deviation in the heat-sealing position of the button-type soft-pack lithium batteries. In severe cases, it will even cause battery deformation, affecting the production quality of the button-type soft-pack lithium batteries. Moreover, the working efficiency of manually loading and unloading button-type soft-pack lithium batteries is not high, and most of the existing edge-sealing devices mainly adopt a single-station heat-sealing processing method, that is, a single heat-sealing cavity performs edge-sealing processing on a single soft-pack lithium battery, which is not applicable to continuous production of a large number of batteries, thus resulting in low production efficiency.

[0004] Refer to the Chinese invention patent with the patent publication number "CN112467265B" and the patent name "An efficient fully automatic soft-pack button-type battery packaging machine". This technical solution discloses "An efficient fully automatic soft-pack button-type battery packaging machine, on which a blanking robot, a material tray, a rotating device, an ear positioning mechanism for adjusting the position of the ear, a folding mechanism for folding the aluminum-plastic film, a trimming mechanism for cutting off the redundant aluminum-plastic film, a sealing mechanism for sealing the edge of the aluminum-plastic film, and an electrical detection mechanism for detecting the insulation performance of the battery pack are fixed; a plurality of packaging jigs are evenly distributed on the surface of the rotating device; the folding mechanism, the ear positioning mechanism, the sealing mechanism, the electrical detection mechanism, and the blanking robot are arranged along the circumferential direction of the rotating device". Although this technical solution can effectively achieve the automated packaging and detection actions of soft-pack lithium batteries, this technical solution cannot perform secondary edge sealing processing on button-type soft-pack lithium batteries, and this technical solution can only perform the edge sealing action on a single battery sequentially at a single station, resulting in low production efficiency and being unable to be applied to batch continuous production.

[0005] Therefore, how to achieve full automation of secondary edge sealing for button-type soft-pack lithium batteries is a technical problem that needs to be solved by technicians at present. Summary of the Invention

[0006] The purpose of the present invention is to provide an automatic edge sealing device and its production line for button-type soft-pack lithium batteries to solve the problems raised in the above background technology.

[0007] To achieve the above purpose, the present invention provides the following technical solution: An automatic edge sealing device for button-type soft-pack lithium batteries, comprising:

[0008] A fixed flat plate, a picking and placing device, N heat sealing devices, and M moving carrier plates;

[0009] Both N and M are integers greater than or equal to 2. The N heat sealing devices are all fixed on the fixed flat plate and are aligned with each other. The picking and placing device is located directly above the fixed flat plate. The M moving carrier plates are close to the N heat sealing devices one by one. One side of each of the M moving carrier plates faces the picking and placing device, and the other side of each of the M moving carrier plates is slidably arranged on the fixed flat plate;

[0010] The heat-sealing device includes a top-sealing mechanism and a bottom-sealing mechanism. The top-sealing mechanism is aligned with the bottom-sealing mechanism, and both ends of the fixed flat plate are located between the top-sealing mechanism and the bottom-sealing mechanism. Installation openings are provided at both ends of the fixed flat plate. The bottom of the top-sealing mechanism and the top of the bottom-sealing mechanism are both aligned with the installation openings. The top-sealing mechanism includes a hot-pressing top plate, and the bottom-sealing mechanism includes a hot-pressing bottom plate, and the hot-pressing bottom plate corresponds to the hot-pressing top plate. A pushing device is provided outside each of the moving carrier plates. The power output end of the pushing device is connected to the outside of the moving carrier plate, and at least one placement groove is provided inside the moving carrier plate. The placement groove is used for placing the button-type soft-pack lithium battery, and the pushing device is used to control the sliding distance of the moving carrier plate;

[0011] The picking and placing device includes a double-slider moving module. The double-slider moving module is located at the center of the fixed flat plate, and a loading mechanism and a material-transferring mechanism are respectively provided on the two sliders of the double-slider moving module. The double-slider moving module is used to control the moving distances of the loading mechanism and the material-transferring mechanism. The loading mechanism is used to place the battery to be edge-sealed in the placement groove, and the material-transferring mechanism is used to take out the battery that has been edge-sealed in the placement groove.

[0012] Preferably, the loading mechanism and the material-transferring mechanism have the same structure. The loading mechanism includes an installation vertical plate and a movable plate member. The bottom of the installation vertical plate is fixed on the slider of the double-slider moving module, and a lifting component is provided on one surface of the installation vertical plate. The power output end of the lifting component is connected to one surface of the movable plate member, and adsorption flat plates are provided on both outer sides of the movable plate member. One surface of the adsorption flat plate faces the moving carrier plate, and at least one adsorption through hole is provided on one surface of the adsorption flat plate.

[0013] Preferably, a strip-shaped through groove is provided inside the moving carrier plate. The strip-shaped through groove is provided outside and close to the placement groove. When the moving carrier plate is located between the top-sealing mechanism and the bottom-sealing mechanism, and the bottom of the top-sealing mechanism is aligned with one surface of the moving carrier plate, and the top of the bottom-sealing mechanism is aligned with the other surface of the moving carrier plate, a clamping surface for clamping the button-type soft-pack lithium battery is formed between the bottom of the hot-pressing top plate and the top of the hot-pressing bottom plate. The hot-pressing top plate and the hot-pressing bottom plate are both aligned with the strip-shaped through groove.

[0014] Preferably, the top-sealing mechanism further includes a supporting top plate. The supporting top plate is located directly above the fixed flat plate. A pressing cylinder is provided on one surface of the supporting top plate, and a top-sealing cavity is movably provided on the other surface of the supporting top plate. The power output end of the pressing cylinder is connected to the top of the top-sealing cavity. The hot-pressing top plate is located inside the top-sealing cavity. The opening of the top-sealing cavity faces the bottom-sealing mechanism, and the opening of the top-sealing cavity is matched with one surface of the moving carrier plate.

[0015] Preferably, a puncturing assembly is further provided inside the top sealing cavity. The puncturing assembly includes a lifting air cylinder and a puncturing knife group. The lifting air cylinder is fixed to the top of the top sealing cavity, and the power output end of the lifting air cylinder extends into the top sealing cavity and is connected to the top of the puncturing knife group. The bottoms of the puncturing knife group all face one side of the fixed flat plate, and the lifting air cylinder is used to control the lifting height of the puncturing knife group.

[0016] Preferably, a pushing air cylinder is further provided on the top of the top sealing cavity. The top of the hot pressing top plate is fixedly connected to the power output end of the pushing air cylinder, and the bottom of the hot pressing top plate is aligned with the top of the hot pressing bottom plate. The pushing air cylinder is used to control the moving distance of the hot pressing top plate.

[0017] Preferably, a limiting through hole is provided at the bottom of the top sealing cavity, and a limiting support column is provided on one side of the moving carrier plate. When the bottom of the top sealing cavity fits with one side of the moving carrier plate, the limiting support column cooperates with the limiting through hole.

[0018] Preferably, the bottom sealing mechanism further includes a supporting bottom plate, which is fixedly installed on the other side of the fixed flat plate. A jacking air cylinder is provided on the supporting bottom plate. A bottom sealing cavity is movably arranged on one side of the supporting bottom plate facing the installation opening. The opening of the bottom sealing cavity is aligned with the top sealing mechanism. The power output end of the jacking air cylinder is connected to the outside of the bottom sealing cavity. A pushing cylinder 325 is provided on the outside of the bottom sealing cavity. The power output end of the pushing cylinder extends into the bottom sealing cavity, and the power output end of the pushing cylinder is connected to the bottom of the hot pressing bottom plate. A liquid discharge through hole is provided on the other side of the moving carrier plate, and the liquid discharge through hole is aligned with the liquid outlet of the bottom sealing cavity. The jacking air cylinder is used to control the lifting height of the bottom sealing cavity.

[0019] Preferably, the pushing device includes a pneumatic module and a connecting bent plate. One end of the connecting bent plate is arranged on the power output end of the pneumatic module, and a connecting column body is arranged at the other end of the connecting bent plate. A fixed through hole is provided outside the moving carrier plate, and the connecting column body is adapted to the fixed through hole. One end of the pneumatic module is close to the heat sealing device, and the other end of the pneumatic module is close to the picking and placing device.

[0020] Preferably, the lifting assembly includes a rotating motor and a transmission lead screw. The rotating motor is fixed on the installation vertical plate, and the transmission lead screw is rotatably arranged on one side of the installation vertical plate. A lifting slider is sleeved outside the transmission lead screw, and the power output end of the rotating motor is in transmission connection with one end of the transmission lead screw. The outside of the lifting slider is connected to the movable plate member.

[0021] Preferably, a trimming device is further provided outside the fixed flat plate. The trimming device is arranged outside near the material transfer mechanism. The trimming device includes a sliding bottom plate which is slidably arranged on the fixed flat plate. A placing flat plate is arranged on the sliding bottom plate. A strip-shaped groove is arranged outside the placing flat plate. A downward moving mechanism is arranged directly above the sliding bottom plate. A trimming flat plate is arranged on the power output end of the downward moving mechanism. The trimming flat plate corresponds to the strip-shaped groove.

[0022] On the other hand, the present application also provides a fully automatic edge-sealing production line for button soft-pack lithium batteries, including any one of the above-mentioned fully automatic edge-sealing devices for button soft-pack lithium batteries, a feeding conveying plane and a blanking conveying plane;

[0023] The feeding conveying plane is arranged near the feeding mechanism and is aligned with one end of the double-slider moving module. The blanking conveying plane is arranged near the material transfer mechanism and is aligned with the other end of the double-slider moving module. The feeding conveying plane is used to supply the batteries to be edge-sealed, and the blanking conveying plane is used to convey the edge-trimmed batteries.

[0024] Compared with the prior art, the present invention provides a fully automatic edge-sealing device for button soft-pack lithium batteries and its production line, which has the beneficial effects as follows: by providing a fixed flat plate, a picking and placing device, N heat-sealing devices and M moving carrier plates; where N and M are both integers greater than or equal to 2, the N heat-sealing devices are all fixed on the fixed flat plate and aligned with each other. The picking and placing device is located directly above the fixed flat plate. By making the M moving carrier plates approach the N heat-sealing devices one by one, at least one placing groove is arranged inside the moving carrier plate, and then the placing groove can be used to place the button soft-pack lithium batteries. One side of each of the M moving carrier plates faces the picking and placing device. The picking and placing device includes a double-slider moving module, and the double-slider moving module is located at the center of the fixed flat plate. By respectively arranging a feeding mechanism and a material transfer mechanism on the two sliders of the double-slider moving module, the moving distance of the feeding mechanism and the material transfer mechanism can be controlled by the double-slider moving module. The feeding mechanism grabs the battery to be edge-sealed and approaches the empty moving carrier plate, so that the feeding mechanism can place the battery to be edge-sealed in the placing groove. And the material transfer mechanism can be used to take out the battery that has been edge-sealed in the placing groove. When the feeding mechanism moves to pick up the material, the material transfer mechanism moves synchronously with the feeding mechanism, and can take out the battery that has been heat-sealed inside the moving carrier plate, making the moving carrier plate in an empty state, realizing the synchronous loading and unloading operation of the moving carrier plate in a two-station manner;

[0025] The M blocks are also arranged such that the other sides of the moving carrier plates are slidably disposed on the fixed flat plate. A pushing device is provided outside each moving carrier plate, and the power output end of the pushing device is connected to the outside of the moving carrier plate. The sliding distance of the moving carrier plate is controlled by the pushing device. Therefore, the moving carrier plate drives the battery to be edge-sealed into the heat-sealing device for secondary edge-sealing operation. After the secondary edge-sealing of the battery is completed, the moving carrier plate can be driven to move out by the reset of the power output end of the pushing device, so that the edge-sealed battery can correspond to the material transfer mechanism for convenient blanking, realizing the synchronous loading and unloading operation of the heat-sealing device at multiple stations;

[0026] The heat-sealing device includes a top-sealing mechanism and a bottom-sealing mechanism. The top-sealing mechanism is aligned with the bottom-sealing mechanism, and the two ends of the fixed flat plate are located between the top-sealing mechanism and the bottom-sealing mechanism. Installation openings are provided at both ends of the fixed flat plate. Furthermore, the bottom of the top-sealing mechanism and the top of the bottom-sealing mechanism are aligned with the installation openings. The top-sealing mechanism includes a hot-pressing top plate, and the bottom-sealing mechanism includes a hot-pressing bottom plate, such that the hot-pressing bottom plate corresponds to the hot-pressing top plate. When the moving carrier plate drives the button-type soft-pack lithium battery and the position to be edge-sealed is aligned between the hot-pressing top plate and the hot-pressing bottom plate, the button-type soft-pack lithium battery on the moving carrier plate can be edge-sealed synchronously from top and bottom by the hot-pressing top plate and the hot-pressing bottom plate, and the edge-sealing operation can be performed on both sides of the aluminum-plastic composite film simultaneously, thereby ensuring the firmness of the edge-sealing, guaranteeing the production quality of the button-type soft-pack lithium battery, and effectively achieving the full-automatic edge-sealing operation of the button-type soft-pack lithium battery at multiple stations, improving the working efficiency. Brief Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic diagram of the overall structure in the present invention.

[0029] Figure 2 It is a schematic diagram of the overall structure from another perspective in the present invention.

[0030] Figure 3 It is a schematic diagram of the picking and placing device structure in the present invention.

[0031] Figure 4 It is a schematic diagram of the loading mechanism and the lifting assembly structure in the present invention.

[0032] Figure 5 It is a schematic diagram of the moving carrier plate structure in the present invention.

[0033] Figure 6 It is a schematic structural diagram of the pushing device in the present invention.

[0034] Figure 7 It is a schematic external structural diagram of the top sealing mechanism in the present invention.

[0035] Figure 8 It is a schematic internal structural diagram of the top sealing mechanism in the present invention.

[0036] Figure 9 It is a schematic structural diagram of the bottom sealing mechanism in the present invention.

[0037] Figure 10 It is a schematic structural diagram of the edge cutting device in the present invention.

[0038] As shown in the markings in the figure: 1. Fixed flat plate; 2. Pick-and-place device; 3. Heat sealing device; 4. Moving carrier plate; 5. Pushing device; 6. Piercing assembly; 7. Lifting assembly; 8. Edge cutting device; 11. Installation opening; 21. Double-slider moving module; 22. Feeding mechanism; 23. Material transfer mechanism; 31. Top sealing mechanism; 32. Bottom sealing mechanism; 41. Placing groove; 42. Strip-shaped through groove; 43. Fixed through hole; 51. Pneumatic module; 52. Connecting bent plate; 61. Lifting cylinder; 62. Piercing knife group; 71. Rotating motor; 72. Transmission lead screw; 73. Lifting slider; 81. Sliding bottom plate; 82. Placing flat plate; 83. Strip-shaped groove; 84. Lowering mechanism; 85. Edge cutting flat plate; 221. Installation vertical plate; 222. Movable plate member; 223. Adsorption flat plate; 224. Adsorption through hole; 311. Hot pressing top plate; 312. Support top plate; 313. Lower pressing cylinder; 314. Top sealing cavity; 315. Pushing cylinder; 321. Hot pressing bottom plate; 322. Support bottom plate; 323. Lifting cylinder; 324. Bottom sealing cavity; 325. Pushing cylinder; 521. Connecting column body. Detailed implementation manners

[0039] 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 drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth 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.

[0040] The terms used in the present application are for the purpose of describing specific embodiments only and are not intended to limit the present application. The singular forms "a", "the" and "said" used in the present application and the appended claims are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0041] 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.

[0042] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 should not be construed as a limitation to the present application; in addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features; thus, the limitation of "first" and "second" is only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly including one or more of such features.

[0043] In the description of the present 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0044] The technical solutions of the embodiments of the present application will be described in detail below with reference to the drawings.

[0045] Referring to Figures 1 to 10 , a button-type soft-pack lithium battery automatic edge-sealing device, comprising:

[0046] A fixed flat plate 1, a picking and placing device 2, N heat-sealing devices 3, and M moving carrier plates 4;

[0047] Both N and M are integers greater than or equal to 2. The N heat-sealing devices 3 are all fixed on the fixed flat plate 1, and the N heat-sealing devices 3 are aligned. The picking and placing device 2 is located directly above the fixed flat plate 1. The M moving carrier plates 4 are close to the N heat-sealing devices 3 one by one. One side of each of the M moving carrier plates 4 faces the picking and placing device 2, and the other side of each of the M moving carrier plates 4 is slidably disposed on the fixed flat plate 1;

[0048] The heat-sealing device 3 includes a top-sealing mechanism 31 and a bottom-sealing mechanism 32. The top-sealing mechanism 31 is aligned with the bottom-sealing mechanism 32, and both ends of the fixed flat plate 1 are located between the top-sealing mechanism 31 and the bottom-sealing mechanism 32. Installation openings 11 are provided at both ends of the fixed flat plate 1. The bottom of the top-sealing mechanism 31 and the top of the bottom-sealing mechanism 32 are both aligned with the installation openings 11. The top-sealing mechanism 31 includes a hot-pressing top plate 311, and the bottom-sealing mechanism 32 includes a hot-pressing bottom plate 321, and the hot-pressing bottom plate 321 corresponds to the hot-pressing top plate 311. A pushing device 5 is provided outside each moving carrier plate 4. The power output end of the pushing device 5 is connected to the outside of the moving carrier plate 4. At least one placement groove 41 is provided inside the moving carrier plate 4, and the placement groove 41 is used for placing the button-type soft-pack lithium battery. The pushing device 5 is used to control the sliding distance of the moving carrier plate 4;

[0049] The picking and placing device 2 includes a double-slider moving module 21. The double-slider moving module 21 is located at the center of the fixed flat plate 1. An upper feeding mechanism 22 and a material transferring mechanism 23 are respectively provided on the two sliders of the double-slider moving module 21. The double-slider moving module 21 is used to control the moving distances of the upper feeding mechanism 22 and the material transferring mechanism 23. The upper feeding mechanism 22 is used to place the battery to be edge-sealed in the placement groove 41, and the material transferring mechanism 23 is used to take out the battery that has been edge-sealed in the placement groove 41.

[0050] Specifically, the upper feeding mechanism 22 and the material transferring mechanism 23 have the same structure. The upper feeding mechanism 22 includes an installation vertical plate 221 and a movable plate member 222. The bottom of the installation vertical plate 221 is fixed on the slider of the double-slider moving module 21. A lifting assembly 7 is provided on one surface of the installation vertical plate 221. The power output end of the lifting assembly 7 is connected to one surface of the movable plate member 222. Adsorption flat plates 223 are provided on both outer sides of the movable plate member 222. One surface of the adsorption flat plate 223 faces the moving carrier plate 4, and at least one adsorption through hole 224 is provided on one surface of the adsorption flat plate 223.

[0051] Specifically, a strip-shaped through groove 42 is provided inside the moving carrier plate 4. The strip-shaped through groove 42 is provided near the outside of the placement groove 41. When the moving carrier plate 4 is located between the top-sealing mechanism 31 and the bottom-sealing mechanism 32, and the bottom of the top-sealing mechanism 31 is aligned with one surface of the moving carrier plate 4, and the top of the bottom-sealing mechanism 32 is aligned with the other surface of the moving carrier plate 4, a clamping surface for clamping the button-type soft-pack lithium battery is formed between the bottom of the hot-pressing top plate 311 and the top of the hot-pressing bottom plate 321. The hot-pressing top plate 311 and the hot-pressing bottom plate 321 are both aligned with the strip-shaped through groove 42.

[0052] Specifically, the top sealing mechanism 31 further includes a supporting top plate 312 which is located directly above the fixed flat plate 1. One side of the supporting top plate 312 is provided with a downward pressing air cylinder 313, and the other side of the supporting top plate 312 is movably provided with a top sealing cavity 314. The power output end of the downward pressing air cylinder 313 is connected to the top of the top sealing cavity 314. The hot pressing top plate 311 is located inside the top sealing cavity 314. The opening of the top sealing cavity 314 faces the bottom sealing mechanism 32, and the opening of the top sealing cavity 314 is matched with one side of the moving carrier plate 4.

[0053] Specifically, a puncturing assembly 6 is further arranged inside the top sealing cavity 314. The puncturing assembly 6 includes a lifting air cylinder 61 and a puncturing knife group 62. The lifting air cylinder 61 is fixed to the top of the top sealing cavity 314, and the power output end of the lifting air cylinder 61 extends into the top sealing cavity 314 and is connected to the top of the puncturing knife group 62. The bottoms of the puncturing knife group 62 all face one side of the fixed flat plate 1. The lifting air cylinder 61 is used to control the lifting height of the puncturing knife group 62.

[0054] Specifically, a pushing air cylinder 315 is further arranged at the top of the top sealing cavity 314. The top of the hot pressing top plate 311 is fixedly connected to the power output end of the pushing air cylinder 315, and the bottom of the hot pressing top plate 311 is aligned with the top of the hot pressing bottom plate 321. The pushing air cylinder 315 is used to control the moving distance of the hot pressing top plate 311.

[0055] Specifically, a limiting through hole is arranged at the bottom of the top sealing cavity 314, and a limiting support column is arranged on one side of the moving carrier plate 4. When the bottom of the top sealing cavity 314 is attached to one side of the moving carrier plate 4, the limiting support column is matched with the limiting through hole.

[0056] Specifically, the bottom sealing mechanism 32 further includes a support bottom plate 322, which is fixedly installed on the other surface of the fixed flat plate 1. A lifting cylinder 323 is provided on the support bottom plate 322. A bottom sealing cavity 324 is movably arranged on the surface of the support bottom plate 322 facing the installation opening 11. The opening of the bottom sealing cavity 324 is aligned with the top sealing mechanism 31. The power output end of the lifting cylinder 323 is connected to the outside of the bottom sealing cavity 324. A pushing cylinder 325 is arranged outside the bottom sealing cavity 324. The power output end of the pushing cylinder 325 extends into the bottom sealing cavity 324 and is connected to the bottom of the hot pressing bottom plate 321. A liquid discharge through hole is arranged on the other surface of the moving carrier plate 4, and the liquid discharge through hole is aligned with the liquid outlet of the bottom sealing cavity 324. The lifting cylinder 323 is used to control the lifting height of the bottom sealing cavity 324.

[0057] Specifically, the pushing device 5 includes a pneumatic module 51 and a connecting bent plate 52. One end of the connecting bent plate 52 is arranged on the power output end of the pneumatic module 51, and a connecting column 521 is arranged at the other end of the connecting bent plate 52. A fixed through hole 43 is arranged outside the moving carrier plate 4, and the connecting column 521 is adapted to the fixed through hole 43. One end of the pneumatic module 51 is close to the heat sealing device 3, and the other end of the pneumatic module 51 is close to the picking and placing device 2.

[0058] Specifically, the lifting assembly 7 includes a rotating motor 71 and a transmission lead screw 72. The rotating motor 71 is fixed on the installation vertical plate 221, and the transmission lead screw 72 is rotatably arranged on one surface of the installation vertical plate 221. A lifting slider 73 is sleeved outside the transmission lead screw 72. The power output end of the rotating motor 71 is in transmission connection with one end of the transmission lead screw 72. The outside of the lifting slider 73 is connected to the movable plate member 222.

[0059] Specifically, a trimming device 8 is further arranged outside the fixed flat plate 1. The trimming device 8 is arranged near the outside of the material transfer mechanism 23. The trimming device 8 includes a sliding bottom plate 81, which is slidably arranged on the fixed flat plate 1. A placing flat plate 82 is arranged on the sliding bottom plate 81. A strip-shaped groove 83 is arranged outside the placing flat plate 82. A downward moving mechanism 84 is arranged directly above the sliding bottom plate 81. A trimming flat plate 85 is arranged on the power output end of the downward moving mechanism 84, and the trimming flat plate 85 corresponds to the strip-shaped groove 83.

[0060] Embodiment 1

[0061] To automatically load a button-type soft-pack lithium battery into an empty moving carrier 4 and perform a synchronous removal action before the loading process, and perform a synchronous removal action on the button-type soft-pack lithium battery with the edge sealing completed in the moving carrier 4 before loading to improve work efficiency. In this embodiment: There is a fixed flat plate 1, a picking and placing device 2, N heat sealing devices 3, and M moving carriers 4; where N and M are both integers greater than or equal to 2. The N heat sealing devices 3 are all fixed on the fixed flat plate 1, and the N heat sealing devices 3 are aligned. The picking and placing device 2 is located directly above the fixed flat plate 1. The M moving carriers 4 are also brought close to the N heat sealing devices 3 one by one. One side of each of the M moving carriers 4 faces the picking and placing device 2, and the other side of the M moving carriers 4 is slidably arranged on the fixed flat plate 1. A pushing device 5 is provided outside each moving carrier 4, and the power output end of the pushing device 5 is connected to the outside of the moving carrier 4. A placing groove 41 is provided inside the moving carrier 4, and thus the button-type soft-pack lithium battery can be placed through the placing groove 41. Therefore, the pushing device 5 can be used to control the sliding distance of the moving carrier 4. After the secondary edge sealing process is completed, the power output end of the pushing device 5 retracts, causing the moving carrier 4 to move away from the heat sealing device 3 until the moving carrier 4 is located directly below the picking and placing device 2. Then, the picking and placing device 2 can be used to take out the button-type soft-pack lithium battery with the edge sealing completed in the moving carrier 4. At this time, the moving carrier 4 is in an empty state, and it can be loaded onto the empty moving carrier 4 through the picking and placing device 2. By repeating the above actions, the loading and unloading of the next button-type soft-pack lithium battery can be realized again.

[0062] It should be noted that to achieve the effect of synchronous loading and unloading actions, in this embodiment, the picking and placing device 2 includes a double-slider moving module 21. The double-slider moving module 21 is located at the center of the fixed flat plate 1. An unloading mechanism 22 and a material transfer mechanism 23 are respectively arranged on the two sliders of the double-slider moving module 21. Thus, the double-slider moving module 21 can be used to control the moving distances of the unloading mechanism 22 and the material transfer mechanism 23. The unloading mechanism 22 is used to place the battery to be edge-sealed in the placing groove 41, making the moving carrier 4 in a loaded state. The material transfer mechanism 23 is also used to take out the battery with the edge sealing completed in the placing groove 41 and move it to the next process. When the unloading mechanism 22 moves away from the moving carrier 4 to grab the raw material, the material transfer mechanism 23 moves synchronously and approaches and aligns with the moving carrier 4 loaded with the edge-sealed battery to wait for grabbing. When the unloading mechanism 22 moves to the feeding outlet of the button-type soft-pack lithium battery to be edge-sealed to grab the raw material, the material transfer mechanism 23 can synchronously adsorb and grab the button-type soft-pack lithium battery with the edge sealing completed on the moving carrier 4, effectively realizing the synchronous loading and unloading actions of the double workstations for the moving carrier 4 and improving work efficiency.

[0063] It should be noted that the feeding mechanism 22 and the material transfer mechanism 23 have the same structure. The feeding mechanism 22 includes a mounting vertical plate 221 and a movable plate member 222. The bottom of the mounting vertical plate 221 is fixed on the slider of the double-slider moving module 21. A lifting assembly 7 is provided on one side of the mounting vertical plate 221, and the power output end of the lifting assembly 7 is connected to one side of the movable plate member 222. Adsorption flat plates 223 are provided on both outer sides of the movable plate member 222, with one side of the adsorption flat plates 223 facing the moving carrier plate 4. Adsorption through holes 224 are provided on one side of the adsorption flat plates 223. The double-slider moving module 21 can drive the feeding mechanism 22 and the material transfer mechanism 23 to move, achieving the effect of synchronous operation of the feeding mechanism 22 and the material transfer mechanism 23. When the adsorption flat plates 223 are aligned with the moving carrier plate 4, the lifting assembly 7 can drive the adsorption flat plates 223 to approach the moving carrier plate 4, making one side of the adsorption flat plates 223 fit with the battery cells of the button-type soft-pack lithium battery on the moving carrier plate 4. Then, the adsorption through holes 224 can adsorb the battery cells of the button-type soft-pack lithium battery, realizing the automatic loading and unloading operation of the button-type soft-pack lithium battery onto the moving carrier plate 4.

[0064] Regarding the above description, it should be added that the lifting assembly 7 includes a rotating motor 71 and a transmission lead screw 72. The rotating motor 71 is fixed on the mounting vertical plate 221, and the transmission lead screw 72 is rotatably arranged on one side of the mounting vertical plate 221. A lifting slider 73 is sleeved outside the transmission lead screw 72, and the power output end of the rotating motor 71 is drivingly connected to one end of the transmission lead screw 72. The outside of the lifting slider 73 is also connected to the movable plate member 222. Therefore, the rotating motor 71 can drive the transmission lead screw 72 to rotate. When the transmission lead screw 72 rotates, it can drive the lifting slider 73 to move. By controlling the forward and reverse rotation of the rotating motor 71, the forward and reverse rotation of the transmission lead screw 72 can be realized, so as to achieve the up and down movement of the lifting slider 73.

[0065] To perform the heat sealing operation on the button-type soft-pack lithium battery at multiple stations, it should be noted that when both N and M are 4, 4 heat sealing devices 3 are evenly arranged on the fixed flat plate 1. Among them, 2 heat sealing devices 3 are corresponding in position, and the other 2 heat sealing devices 3 are corresponding in position. And 2 of the moving carrier plates 4 are close to 2 of the heat sealing devices 3 one by one, and the other 2 moving carrier plates 4 are close to the other 2 heat sealing devices 3 one by one. Therefore, after the picking and placing device 2 feeds 2 of the moving carrier plates 4, without waiting for the 2 moving carrier plates 4 to be vacant, the feeding operation can be performed on the other 2 moving carrier plates 4, that is, the loading and unloading operations are performed on 2 groups of plate groups in sequence, effectively achieving the automatic secondary edge sealing of the button-type soft-pack lithium battery at multiple stations and improving the working efficiency.

[0066] Regarding this description, to improve production efficiency, it should be added that two adsorption through-holes 224 can be provided in each adsorption flat plate 223, that is, two adsorption through-holes 224 are provided on one side of the adsorption flat plate 223, so that the two adsorption through-holes 224 are adjacent to each other. In addition, two placement grooves 41 can be provided inside the moving carrier plate 4. When two adsorption flat plates 223 are aligned with two moving carrier plates 4 one by one, two button-type soft-pack lithium batteries can be synchronously adsorbed through the two adsorption through-holes 224, achieving synchronous loading and unloading operations for multiple batteries. It is possible to place two button-type soft-pack lithium batteries inside the same heat-sealing device 3 for synchronous heat-sealing, thereby improving production efficiency.

[0067] It should be noted that to prevent the adsorption flat plate 223 from directly colliding during the adsorption and material-taking process, which may cause the battery to deform, the adsorption flat plate 223 can be movably arranged outside the movable plate member 222. A buffer spring can also be provided at the bottom of the movable plate member 222 and connected to the adsorption flat plate 223. Thus, when the movable plate member 222 presses down to drive the adsorption flat plate 223, and the adsorption flat plate 223 approaches and contacts the button-type soft-pack lithium battery inside the moving carrier plate 4, the buffer spring can play a buffering effect, preventing the adsorption flat plate 223 from directly colliding with the battery and causing deformation during the adsorption and material-taking process.

[0068] It should also be noted that to ensure that the installation vertical plate 221 can move smoothly on the double-slider moving module 21, a connecting flat plate can be provided at the bottom of the installation vertical plate 221, and one side of the connecting flat plate is fixedly installed on the slider of the double-slider moving module 21, thereby ensuring the stable installation of the installation vertical plate 221. A transmission chain can also be provided at the top of the installation vertical plate 221 and connected to the top of the installation vertical plate 221 to ensure that the installation vertical plate 221 moves smoothly.

[0069] Embodiment 2

[0070] To enable the moving carrier plate 4 to drive the button-type soft-pack lithium battery to be edge-sealed into the heat-sealing device 3 for secondary edge-sealing operation, in this embodiment: a pushing device 5 is provided outside each moving carrier plate 4, and the power output end of the pushing device 5 is connected to the outside of the moving carrier plate 4. When the moving carrier plate 4 is placed with the button-type soft-pack lithium battery to be edge-sealed, the power output end of the pushing device 5 ejects, thereby driving the moving carrier plate 4 loaded with the button-type soft-pack lithium battery to be edge-sealed to approach the heat-sealing device 3 until the moving carrier plate 4 is inside the heat-sealing device 3, and the heat-sealing device 3 performs secondary edge-sealing processing on the moving carrier plate 4;

[0071] The pushing device 5 includes a pneumatic module 51 and a connecting bent plate 52. One end of the connecting bent plate 52 is arranged on the power output end of the pneumatic module 51, and a connecting cylinder 521 is arranged at the other end of the connecting bent plate 52. Further, a fixed through hole 43 is arranged outside the moving carrier plate 4, and the connecting cylinder 521 is adapted to the fixed through hole 43. One end of the pneumatic module 51 is close to the heat-sealing device 3, and the other end of the pneumatic module 51 is close to the picking and placing device 2. Therefore, the pneumatic module 51 can drive the connecting bent plate 52 to move. Since the connecting cylinder 521 of the connecting bent plate 52 is connected to the fixed through hole 43 of the moving carrier plate 4, the moving carrier plate 4 can be driven to move by the connecting bent plate 52. That is, when the connecting bent plate 52 moves towards the heat-sealing device 3, the moving carrier plate 4 can be driven to approach the heat-sealing device 3 until the moving carrier plate 4 is inside the heat-sealing device 3. When the connecting bent plate 52 moves towards the picking and placing device 2, the moving carrier plate 4 can be driven to approach the picking and placing device 2, so that the loading and unloading mechanism 22 or the material transfer mechanism 23 of the picking and placing device 2 can perform the loading and unloading operations on the battery in the moving carrier plate 4.

[0072] The pneumatic module 51 is a linear drive mechanism widely used in the field of automation industry, and is widely used in the fields of machine tools, automation equipment, and robots. The pneumatic module 51 is directly driven by a cylinder, and the combined drive of the cylinder and the linear slide rail is used to realize the linear movement of the slide table. It has good rigidity and repeat positioning accuracy, and its durability, labor-saving characteristics, and load capacity are all parameters that need to be emphasized in design applications. The pneumatic working slide table is composed of a standard component of an integrated sliding type with horizontal and vertical movements driven by a cylinder, which reduces the design and production time, and has the advantages of low price, short delivery period, high positioning accuracy, fast walking speed, high load, adaptability to harsh environments, and simple installation.

[0073] It should be added that a sliding guide rail can be arranged on the fixed flat plate 1, the two ends of the sliding guide rail are respectively aligned with the heat-sealing device 3 and the picking and placing device 2, and a moving slider is arranged on the surface of the moving carrier plate 4 close to the fixed flat plate 1, and the moving slider is slidably connected to the sliding guide rail.

[0074] Embodiment III

[0075] To achieve the automated secondary edge-sealing operation for the button-type soft-pack lithium battery inside the moving carrier plate 4, since it is necessary to remove the excess electrolyte inside the aluminum-plastic composite film, in this embodiment: There is a fixed flat plate 1, a pick-and-place device 2, N heat-sealing devices 3, and M moving carrier plates 4 are provided; where N and M are both integers greater than or equal to 2. The N heat-sealing devices 3 are all fixed on the fixed flat plate 1, and the N heat-sealing devices 3 are also aligned. The pick-and-place device 2 is located directly above the fixed flat plate 1. The M moving carrier plates 4 are brought close to the N heat-sealing devices 3 one by one, and one side of the M moving carrier plates 4 all faces the pick-and-place device 2. The other side of the M moving carrier plates 4 is slidably arranged on the fixed flat plate 1. The heat-sealing device 3 includes a top-sealing mechanism 31 and a bottom-sealing mechanism 32. The top-sealing mechanism 31 and the bottom-sealing mechanism 32 are aligned, and both ends of the fixed flat plate 1 are located between the top-sealing mechanism 31 and the bottom-sealing mechanism 32. When the moving carrier plate 4 moves between the top-sealing mechanism 31 and the bottom-sealing mechanism 32, the top-sealing mechanism 31 and the bottom-sealing mechanism 32 can simultaneously perform the secondary edge-sealing operation on the button-type soft-pack lithium battery inside the moving carrier plate 4. The top-sealing mechanism 31 includes a hot-pressing top plate 311, and the bottom-sealing mechanism 32 includes a hot-pressing bottom plate 321. The hot-pressing bottom plate 321 corresponds to the hot-pressing top plate 311, and the hot-pressing top plate 311 and the hot-pressing bottom plate 321 can be aligned and combined to perform the hot-pressing edge-sealing operation on the button-type soft-pack lithium battery inside the moving carrier plate 4.

[0076] It should be noted that, to facilitate the simultaneous clamping of both sides of the aluminum-plastic composite film of the button-type soft-pack lithium battery inside the moving carrier plate 4, a strip-shaped through groove 42 is opened inside the moving carrier plate 4, and the strip-shaped through groove 42 is arranged outside and close to the placement groove 41. When the moving carrier plate 4 is between the top-sealing mechanism 31 and the bottom-sealing mechanism 32, and the bottom of the top-sealing mechanism 31 is aligned with one side of the moving carrier plate 4, and the top of the bottom-sealing mechanism 32 is aligned with the other side of the moving carrier plate 4, the bottom of the hot-pressing top plate 311 and the top of the hot-pressing bottom plate 321 form a clamping surface for clamping the button-type soft-pack lithium battery. Also, the hot-pressing top plate 311 and the hot-pressing bottom plate 321 are both aligned with the strip-shaped through groove 42. So that when the moving carrier plate 4 is between the top-sealing mechanism 31 and the bottom-sealing mechanism 32, a lifting cylinder 325 is arranged outside the bottom-sealing cavity 324, and the power output end of the lifting cylinder 325 extends into the bottom-sealing cavity 324 and is connected to the bottom of the hot-pressing bottom plate 321, so that the top of the hot-pressing bottom plate 321 can be pushed out through the strip-shaped through groove 42, and the bottom of the hot-pressing top plate 311 can be pressed into the strip-shaped through groove 42. Effectively, through the strip-shaped through groove 42, it is convenient for the hot-pressing bottom plate 321 and the hot-pressing top plate 311 to contact both sides of the aluminum-plastic composite film, and then the synchronous hot-sealing operation on both sides of the aluminum-plastic composite film can be realized. While effectively improving the edge-sealing efficiency, the edge-sealing quality is ensured, preventing the occurrence of liquid leakage due to gaps in the edge-sealing.

[0077] It should be noted that the top sealing mechanism 31 further includes a supporting top plate 312, which is located directly above the fixed flat plate 1. A pressing cylinder 313 is arranged on one side of the supporting top plate 312, and a top sealing cavity 314 is movably arranged on the other side of the supporting top plate 312. Therefore, the power output end of the pressing cylinder 313 can be connected to the top of the top sealing cavity 314, and then the top sealing cavity 314 can be driven by the pressing cylinder 313 to move up and down, driving the top sealing cavity 314 to approach one side of the moving carrier plate 4. The hot pressing top plate 311 is located inside the top sealing cavity 314, the opening of the top sealing cavity 314 faces the bottom sealing mechanism 32, and the opening of the top sealing cavity 314 is also matched with one side of the moving carrier plate 4. Therefore, when the moving carrier plate 4 is between the top sealing mechanism 31 and the bottom sealing mechanism 32, the opening of the top sealing cavity 314 can be driven to fit with one side of the moving carrier plate 4 to ensure that the hot pressing top plate 311 inside the top sealing cavity 314 can seal the position on the moving carrier plate 4 that needs edge sealing.

[0078] Regarding the above description, it should be added that a pushing cylinder 315 is further arranged on the top of the top sealing cavity 314. The top of the hot pressing top plate 311 is fixedly connected to the power output end of the pushing cylinder 315, and the bottom of the hot pressing top plate 311 is aligned with the top of the hot pressing bottom plate 321. The pushing cylinder 315 can be used to control the moving distance of the hot pressing top plate 311, so that the hot pressing top plate 311 moves towards the hot pressing bottom plate 321. When the moving carrier plate 4 is between the top sealing mechanism 31 and the bottom sealing mechanism 32, the hot pressing top plate 311 can press one side of the battery aluminum-plastic composite film for heat sealing processing.

[0079] It should also be noted that the bottom sealing mechanism 32 further includes a supporting bottom plate 322, which is fixedly installed on the other side of the fixed flat plate 1. A lifting cylinder 323 is arranged on the supporting bottom plate 322, and a bottom sealing cavity 324 is movably arranged on the side of the supporting bottom plate 322 facing the installation opening 11. The opening of the bottom sealing cavity 324 is aligned with the top sealing mechanism 31, and the power output end of the lifting cylinder 323 is connected to the outside of the bottom sealing cavity 324. Then, the lifting cylinder 323 can be used to control the lifting height of the bottom sealing cavity 324, so that the bottom sealing cavity 324 can approach the top sealing cavity 314 until the opening of the bottom sealing cavity 324 is matched with the other side of the moving carrier plate 4. A pushing cylinder 325 is also arranged outside the bottom sealing cavity 324, and the power output end of the pushing cylinder 325 extends into the bottom sealing cavity 324 and is connected to the bottom of the hot pressing bottom plate 321. Then, when the power output end of the pushing cylinder 325 jacks up, the hot pressing bottom plate 321 can be moved to cooperate with the other side of the moving carrier plate 4, and the top sealing cavity 314 and the bottom sealing cavity 324 clamp the two sides of the moving carrier plate 4 synchronously.

[0080] For this embodiment, in order to perform a puncturing action on the aluminum-plastic composite film before secondary edge sealing to facilitate the extraction of excess electrolyte, it should be noted that a puncturing assembly 6 is further provided inside the top-sealing cavity 314. The puncturing assembly 6 includes a lifting cylinder 61 and a puncturing knife group 62. The lifting cylinder 61 is fixed to the top of the top-sealing cavity 314, and the power output end of the lifting cylinder 61 extends into the top-sealing cavity 314 and is connected to the top of the puncturing knife group 62. The lifting height of the puncturing knife group 62 can be controlled by the lifting cylinder 61, that is, the lifting cylinder 61 drives the puncturing knife group 62 to perform a lifting action. When the power output end of the lifting cylinder 61 descends, it drives the puncturing knife group 62 to press down. Since the bottoms of the puncturing knife group 62 all face one side of the fixed flat plate 1, that is, when one side of the moving carrier plate 4 is aligned with the top-sealing cavity 314, the aluminum-plastic composite film inside the moving carrier plate 4 can be punctured by the puncturing knife group 62 to facilitate the subsequent liquid extraction action.

[0081] For the above description, a further supplement is that when the moving carrier plate 4 is between the top-sealing cavity 314 and the bottom-sealing cavity 324, the top-sealing cavity 314 and the bottom-sealing cavity 324 are respectively attached to both sides of the moving carrier plate 4, thereby forming a vacuum cavity. After the puncturing assembly 6 punctures the surface of the aluminum-plastic composite film of the coin-type soft-pack lithium battery, the excess electrolyte can be extracted by vacuum pumping.

[0082] It should also be noted that a limiting through hole is provided at the bottom of the top-sealing cavity 314, and a limiting pillar is provided on one side of the moving carrier plate 4. When the bottom of the top-sealing cavity 314 is attached to one side of the moving carrier plate 4, the limiting pillar cooperates with the limiting through hole, and thus the bottom of the top-sealing cavity 314 can be firmly connected to one side of the moving carrier plate 4 through the cooperation of the limiting pillar and the limiting through hole.

[0083] Regarding the puncturing process of the aluminum-plastic composite film of the coin-type soft-pack lithium battery, to achieve the discharge of electrolytic liquid and prevent the situation where the electrolyte in the moving carrier plate 4 accumulates and pollutes the battery surface, a liquid discharge through hole can be provided on the other side of the moving carrier plate 4, and the liquid discharge through hole is aligned with the liquid outlet of the bottom-sealing cavity 324. Then, when the puncturing assembly 6 of the top-sealing device punctures and extracts the liquid from the aluminum-plastic composite film of the coin-type soft-pack lithium battery, the electrolyte can be discharged through the liquid discharge through hole to the liquid outlet of the bottom-sealing cavity 324, and finally, the excess electrolyte is discharged through the drainage pipeline of the bottom-sealing cavity 324 to prevent the excess electrolyte from polluting the battery surface, so as to facilitate the centralized treatment of electrolyte recycling.

[0084] Specifically, to ensure that the bottom of the top-sealing cavity 314 fits firmly with one side of the moving carrier plate 4 to ensure connection tightness, and the top of the bottom-sealing cavity 324 fits firmly with the other side of the moving carrier plate 4, limit slots can be provided on both sides of the moving carrier plate 4. The limit slots on both sides are arranged around the periphery of the moving carrier plate 4. The limit slot on the side close to the bottom-sealing cavity 324 can be adapted to the bottom of the top-sealing cavity 314, and the limit slot on the other side can be adapted to the top of the bottom-sealing cavity 324. When the bottom of the top-sealing cavity 314 presses tightly against one side of the moving carrier plate 4, a sealed connection is achieved, and when the top of the bottom-sealing cavity 324 presses tightly against the other side of the moving carrier plate 4, a sealed connection is achieved.

[0085] Embodiment 4

[0086] To perform the operation of trimming the edges of the battery after secondary edge sealing, since it is necessary to puncture and drain the excess electrolyte inside the aluminum-plastic composite film during the secondary edge sealing process, and then it is necessary to trim the punctured and excess aluminum-plastic composite film after secondary edge sealing to ensure the battery production quality. In this embodiment: A trimming device 8 is further provided outside the fixed flat plate 1, and the trimming device 8 is arranged outside close to the material transfer mechanism 23. The material transfer mechanism 23 of the picking and placing device 2 grabs the sealed button-type soft-pack lithium battery and approaches the trimming device 8. The trimming device 8 includes a sliding bottom plate 81, the sliding bottom plate 81 is slidably arranged on the fixed flat plate 1, and a placing flat plate 82 is further arranged on the sliding bottom plate 81. A strip-shaped groove 83 is arranged outside the placing flat plate 82, and a downward moving mechanism 84 is arranged directly above the sliding bottom plate 81. A trimming flat plate 85 is arranged at the power output end of the downward moving mechanism 84, and the trimming flat plate 85 corresponds to the strip-shaped groove 83. Therefore, when placing the button-type soft-pack lithium battery on the placing flat plate 82, the downward moving mechanism 84 drives the trimming flat plate 85 to move downward, so that the trimming flat plate 85 trims the excess edges in the strip-shaped groove 83.

[0087] It should be noted that to simultaneously perform edge trimming on the button-type soft-pack lithium batteries that have been edge-sealed on the two adsorption flat plates 223, two trimming devices 8 can be provided, and the two trimming devices 8 are symmetrically arranged outside the fixed flat plate 1. Then, when the material transfer mechanism 23 moves and aligns with the two trimming devices 8, and the adsorption flat plate 223 is located directly above the placing flat plate 82, the adsorption can be cancelled, so that the edge-sealed button-type soft-pack lithium battery is placed on the placing flat plate 82, and at this time, the punctured aluminum-plastic composite film on the button-type soft-pack lithium battery can be in the strip-shaped groove 83, effectively realizing the synchronous edge trimming operation of the button-type soft-pack lithium battery in a two-station manner, and further realizing the edge trimming operation of the excess edges of the aluminum-plastic composite film.

[0088] Regarding the above description, it should be further supplemented that after the trimming of the button-type soft-pack lithium battery placed on the placement flat plate 82 is completed, the trimmed button-type soft-pack lithium battery can be adsorbed to the blanking station again through the material transfer mechanism 23.

[0089] In this embodiment, it should be supplemented that in order to align the placement flat plate 82 of the trimming device 8 with one side of the adsorption plate member, a moving cylinder can be arranged outside the sliding bottom plate 81, and the power output end of the moving cylinder is connected to one end of the sliding plate member, so that the other end of the sliding plate member approaches the picking and placing device 2. Furthermore, when the power output end of the moving cylinder ejects, it drives the sliding plate member to approach the picking and placing device 2. When the material transfer mechanism 23 approaches the trimming device 8, it can be controlled until the sliding plate member approaches the material transfer mechanism 23, so that the placement flat plate 82 is aligned with the adsorption flat plate 223, effectively improving the battery placement position and controlling the trimming size of the battery.

[0090] Embodiment Five

[0091] Combined with the above embodiments, in order to realize continuous production, this embodiment also provides an automatic edge-sealing production line for button-type soft-pack lithium batteries, including the automatic edge-sealing equipment for button-type soft-pack lithium batteries in the above embodiments, a feeding conveying plane and a blanking conveying plane; the feeding conveying plane is arranged close to the feeding mechanism 22, and the feeding conveying plane is also aligned with one end of the double-slider moving module 21, so that the blanking conveying plane is arranged close to the material transfer mechanism 23, and the blanking conveying plane is also aligned with the other end of the double-slider moving module 21. The feeding conveying plane can be used to supply the batteries to be edge-sealed, and the blanking conveying plane can be used to convey the trimmed batteries, effectively realizing automatic feeding close to the feeding mechanism 22. When the feeding mechanism 22 moves close to the feeding conveying plane, it can adsorb the batteries to be edge-sealed, and it is convenient for the material transfer mechanism 23 to place the trimmed batteries on the blanking conveying plane and convey them to the next process through the blanking conveying plane, which is convenient for realizing continuous production.

[0092] For this embodiment, it is further elaborated that in order to ensure the stable conveyance of the button-type soft-pack lithium battery during blanking conveyance, a number of battery fixtures can be arranged on the blanking conveying plane, and a circular groove for placing the circular battery core of the button-type soft-pack lithium battery is arranged in each battery fixture.

[0093] The solutions of the present application have been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the respective embodiments each have their own emphasis. For parts not described in detail in a certain embodiment, reference may be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily essential to the present application. Additionally, it can be understood that the steps in the method embodiments of the present application can be adjusted, combined, and deleted according to actual needs, and the modules in the device embodiments of the present application can be combined, divided, and deleted according to actual needs.

[0094] The various embodiments of the present application have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, the practical application, or the improvement of the technology in the market, or to enable other ordinary skilled persons in the technical field to understand the embodiments disclosed herein.

Claims

1. An automatic edge-sealing device for button-type soft-pack lithium batteries, characterized in that, Including: A fixed flat plate, a picking and placing device, N heat sealing devices, and M moving carrier plates; Both N and M are integers greater than or equal to 2. The N heat sealing devices are all fixed on the fixed flat plate and are aligned with each other. The picking and placing device is located directly above the fixed flat plate. The M moving carrier plates are respectively close to the N heat sealing devices one by one. One side of each of the M moving carrier plates faces the picking and placing device, and the other side of each of the M moving carrier plates is slidably arranged on the fixed flat plate; Each heat sealing device includes a top sealing mechanism and a bottom sealing mechanism. The top sealing mechanism is aligned with the bottom sealing mechanism. Both ends of the fixed flat plate are located between the top sealing mechanism and the bottom sealing mechanism, and installation openings are provided at both ends of the fixed flat plate. The bottom of the top sealing mechanism and the top of the bottom sealing mechanism are aligned with the installation openings. The top sealing mechanism includes a hot pressing top plate, the bottom sealing mechanism includes a hot pressing bottom plate, and the hot pressing bottom plate corresponds to the hot pressing top plate. A pushing device is arranged outside each moving carrier plate. The power output end of the pushing device is connected to the outside of the moving carrier plate. At least one placing groove is arranged inside the moving carrier plate for placing button soft-pack lithium batteries. The pushing device is used to control the sliding distance of the moving carrier plate; The picking and placing device includes a double-slider moving module. The double-slider moving module is located at the center of the fixed flat plate. A feeding mechanism and a material transferring mechanism are respectively arranged on two sliders of the double-slider moving module. The double-slider moving module is used to control the moving distances of the feeding mechanism and the material transferring mechanism. The feeding mechanism is used to place the battery to be edge-sealed in the placing groove, and the material transferring mechanism is used to take out the battery that has been edge-sealed in the placing groove; The feeding mechanism and the material transferring mechanism have the same structure. The feeding mechanism includes a mounting vertical plate and a movable plate member. The bottom of the mounting vertical plate is fixed on the slider of the double-slider moving module. A lifting component is arranged on one side of the mounting vertical plate. The power output end of the lifting component is connected to one side of the movable plate member. Adsorption flat plates are arranged on both outer sides of the movable plate member. One side of the adsorption flat plate faces the moving carrier plate, and at least one adsorption through hole is arranged on one side of the adsorption flat plate; A strip-shaped through groove is arranged inside the moving carrier plate, and the strip-shaped through groove is arranged outside and close to the placing groove. When the moving carrier plate is located between the top sealing mechanism and the bottom sealing mechanism, and the bottom of the top sealing mechanism is aligned with one side of the moving carrier plate, and the top of the bottom sealing mechanism is aligned with the other side of the moving carrier plate, a clamping surface for clamping the button soft-pack lithium battery is formed between the bottom of the hot pressing top plate and the top of the hot pressing bottom plate. The hot pressing top plate and the hot pressing bottom plate are both aligned with the strip-shaped through groove.

2. The automatic edge-sealing device for a button-type soft-pack lithium battery according to claim 1, wherein, The top sealing mechanism further includes a supporting top plate which is located directly above the fixed flat plate. One side of the supporting top plate is provided with a downward pressing air cylinder, and the other side of the supporting top plate is movably provided with a top sealing cavity. The power output end of the downward pressing air cylinder is connected to the top of the top sealing cavity. The hot pressing top plate is located inside the top sealing cavity. The opening of the top sealing cavity faces the bottom sealing mechanism, and the opening of the top sealing cavity is matched with one side of the moving carrier plate.

3. The automatic edge-sealing device for a button-type soft-pack lithium battery according to claim 2, wherein, A puncturing component is further arranged inside the top sealing cavity. The puncturing component includes a lifting air cylinder and a puncturing knife group. The lifting air cylinder is fixed on the top of the top sealing cavity, and the power output end of the lifting air cylinder extends into the top sealing cavity and is connected to the top of the puncturing knife group. The bottoms of the puncturing knife group all face one side of the fixed flat plate. The lifting air cylinder is used to control the lifting height of the puncturing knife group.

4. The automatic edge-sealing device for a button-type soft-pack lithium battery according to claim 2, wherein, A pushing air cylinder is further arranged on the top of the top sealing cavity. The top of the hot pressing top plate is fixedly connected to the power output end of the pushing air cylinder, and the bottom of the hot pressing top plate is aligned with the top of the hot pressing bottom plate. The pushing air cylinder is used to control the moving distance of the hot pressing top plate.

5. The automatic edge-sealing device for a button-type soft-pack lithium battery according to claim 2, wherein, A limiting through hole is arranged at the bottom of the top sealing cavity, and a limiting support column is arranged on one side of the moving carrier plate. When the bottom of the top sealing cavity fits with one side of the moving carrier plate, the limiting support column is matched with the limiting through hole.

6. The automatic edge-sealing device for a button-type soft-pack lithium battery according to claim 1, characterized in that, The bottom sealing mechanism further includes a supporting bottom plate which is fixedly installed on the other side of the fixed flat plate. A jacking air cylinder is arranged on the supporting bottom plate. A bottom sealing cavity is movably arranged on one side of the supporting bottom plate facing the installation opening. The opening of the bottom sealing cavity is aligned with the top sealing mechanism, and the power output end of the jacking air cylinder is connected to the outside of the bottom sealing cavity. A pushing cylinder is arranged outside the bottom sealing cavity. The power output end of the pushing cylinder extends into the bottom sealing cavity, and the power output end of the pushing cylinder is connected to the bottom of the hot pressing bottom plate. A liquid discharge through hole is arranged on the other side of the moving carrier plate, and the liquid discharge through hole is aligned with the liquid outlet of the bottom sealing cavity. The jacking air cylinder is used to control the lifting height of the bottom sealing cavity.

7. The automatic edge-sealing device for a button-type soft-pack lithium battery according to claim 1, characterized in that, The pushing device includes a pneumatic module and a connecting bent plate. One end of the connecting bent plate is arranged on the power output end of the pneumatic module, and the other end of the connecting bent plate is provided with a connecting cylinder body. A fixed through hole is arranged outside the moving carrier plate, and the connecting cylinder body is adapted to the fixed through hole. One end of the pneumatic module is close to the heat sealing device, and the other end of the pneumatic module is close to the picking and placing device.

8. The automatic edge-sealing device for a button-type soft-pack lithium battery according to claim 1, characterized in that, The lifting component includes a rotating motor and a transmission lead screw. The rotating motor is fixed on the installation vertical plate, and the transmission lead screw is rotatably arranged on one side of the installation vertical plate. A lifting slider is sleeved outside the transmission lead screw. The power output end of the rotating motor is in transmission connection with one end of the transmission lead screw. The outside of the lifting slider is connected to the movable plate member.

9. The automatic edge-sealing device for a button-type soft-pack lithium battery according to claim 1, wherein, An edge trimming device is further provided outside the fixed flat plate. The edge trimming device is arranged outside near the material transfer mechanism. The edge trimming device includes a sliding bottom plate which is slidably arranged on the fixed flat plate. A placing flat plate is arranged on the sliding bottom plate. A strip-shaped groove is arranged outside the placing flat plate. A downward moving mechanism is arranged directly above the sliding bottom plate. A cutting edge flat plate is arranged on the power output end of the downward moving mechanism. The cutting edge flat plate corresponds to the strip-shaped groove.

10. An automatic edge-sealing production line for button-type soft-pack lithium batteries, characterized in that, It includes a button-type soft-pack lithium battery automatic edge sealing device as described in any one of claims 1 to 9, a feeding conveying plane, and a blanking conveying plane. The feeding conveying plane is arranged near the feeding mechanism, and the feeding conveying plane is aligned with one end of the double-slider moving module. The blanking conveying plane is arranged near the material transfer mechanism, and the blanking conveying plane is aligned with the other end of the double-slider moving module. The feeding conveying plane is used to supply the batteries to be edge-sealed, and the blanking conveying plane is used to convey the edge-trimmed batteries.

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