Automatic packaging device for soft-package lithium manganese iron phosphate battery

Abstract

The invention discloses a soft-package lithium manganese iron phosphate battery packaging automation device in the technical field of soft-package battery packaging. The soft-package lithium manganese iron phosphate battery packaging automation device comprises a workbench, and a packaging box and a control module are arranged on the workbench; a stamping module, a clamping module and a thermoplastic module are arranged in the packaging box; the stamping module comprises a light-emitting part, at least one pair of stamping plates, a pressure bearing table, a moving assembly, a releasing assembly, a first collecting module and a second collecting module. Pit-shaped adjusting assemblies are arranged at the bottoms of the stamping plates. The first acquisition module is used for acquiring parameter information of a battery cell, the second acquisition module is used for acquiring light and shadow information, and the pit-shaped adjusting assembly is used for arranging forming molds; the control module is used for combining information acquired by the first acquisition module and the second acquisition module, comprehensively judging the size of the battery cell borne on the stamping plate and controlling operation of the pit-shaped adjusting assembly; and the thermoplastic module is used for packaging. According to the scheme, it can be ensured that the cells accurately coincide with the pits in the aluminum-plastic film, and the accuracy of the packaging process is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of soft-pack battery packaging, and in particular is an automated device for packaging soft-pack lithium manganese iron phosphate batteries. Background Art

[0002] Under the background of rapid development of new energy industry, soft-pack lithium manganese iron phosphate battery has gradually become one of the mainstream products in the field of electric vehicles and new energy with its high energy density, long life and safety. The packaging process of soft-pack battery is a key link, and its quality and efficiency directly affect the performance and production cost of the battery.

[0003] Aluminum-plastic film is the main packaging material for soft-pack lithium batteries. It consists of an outer nylon layer (ON), an adhesive, an intermediate aluminum foil (Al), an adhesive, and an inner heat-sealing layer (CPP). The aluminum-plastic film needs to go through a punching and forming process before packaging, that is, punching the aluminum-plastic film into a pit that can accommodate the battery cell. This process is also called punching. Specifically, a pit that can accommodate the battery cell is punched out on the aluminum-plastic film by heating the forming mold. After the aluminum-plastic film is punched and cut into shape, it is generally called a pocket bag.

[0004] After the aluminum-plastic film is punched and formed, the battery cell needs to be placed in the pit on the aluminum-plastic film, and then the side top seal is performed. Since the size and shape of the battery cell and the pit need to be highly matched, a slight deviation will cause the battery cell and the pit to not accurately overlap. Although the existing technology uses automated equipment and control systems, manual intervention and adjustment are still required in the steps of battery cell placement and side top sealing, resulting in insufficient production efficiency and quality stability.

[0005] In view of the deficiencies in the prior art, there is an urgent need for an automated packaging device that can achieve rapid and precise positioning of battery cells in aluminum-plastic film pits, thereby significantly improving the production efficiency and quality stability of soft-pack battery packaging. Summary of the invention

[0006] In order to solve the above problems, the purpose of the present invention is to provide a soft-pack lithium manganese iron phosphate battery packaging automation device, which can ensure that the battery cell and the pit on the aluminum-plastic film are accurately overlapped, reduce deviations and errors, and improve the accuracy of the packaging process.

[0007] In order to achieve the above object, the technical solution of the present invention is as follows:

[0008] A soft-pack lithium manganese iron phosphate battery packaging automation device comprises a workbench, on which a packaging box and a control module are arranged; a stamping module, a clamping module and a thermoplastic module are arranged in the packaging box; the stamping module comprises a light-emitting component, at least one pair of stamping plates, a pressure-bearing platform, a moving component, a releasing component, a first acquisition module and a second acquisition module; the light-emitting component is located on the inner wall of the packaging box, and the light-emitting component is used to emit light to the stamping plate; the stamping plate is located below the light-emitting component, and the upper end surface of the stamping plate is combined to form a bearing area, and the bearing area is used to bear the battery cell, and the bottom of the stamping plate is provided with a pit-shaped adjustment component; the pressure-bearing platform is located below the stamping plate, and the pressure-bearing platform is used to place the aluminum-plastic film, and the top of the pressure-bearing platform is used to place the aluminum-plastic film. The first collecting module is used to obtain parameter information of the carried battery cell, the second collecting module is used to collect light and shadow information after the light passes through the battery cell, and the pit-shaped adjustment component is used to arrange and combine into forming molds of different sizes; the control module is used to combine the information collected by the first collecting module and the second collecting module, comprehensively judge the size of the battery cell carried on the stamping plate, and control the operation of the pit-shaped adjustment component, the moving component and the releasing component based on the size of the battery cell;

[0009] The clamping module is used to transport the aluminum-plastic film formed on the pressure platform together with the battery cell to the thermoplastic module;

[0010] Thermoplastic modules are used to encapsulate aluminum-plastic films and battery cells.

[0011] The above scheme has the following beneficial effects:

[0012] 1. This scheme places the aluminum-plastic film on the pressure platform, places the battery cell on the bearing area at the top of the stamping plate, collects the image information of the battery cell through the first acquisition module, and preliminarily determines the size of the battery cell. Then, the light is emitted to the battery cell through the light-emitting component. After the light is emitted to the battery cell, the light and shadow information at this time is collected through the second acquisition module. The size of the shadow area of ​​the battery cell in the light and shadow information is further determined. After the control module combines the information of the two, it can more accurately determine the size of the pit required for the battery cell, and then control the operation of the pit-shaped adjustment component to arrange and combine it into a forming mold of corresponding size. The stamping plate is moved to the top of the pressure platform by the moving component, and the forming mold formed by the pit-shaped adjustment component is used to leave a corresponding pit mark on the aluminum-plastic film on the pressure platform. Then the control module controls the release component to operate, so that the stamping plate is unfolded, and the battery cell falls freely into the formed pit mark. Then, the battery cell and the aluminum-plastic film are transferred to the thermoplastic module for packaging through the clamping module.

[0013] Compared with the existing technology, this solution integrates the first acquisition module and the second acquisition module, and the device can accurately obtain the size information of the battery cell. The first acquisition module preliminarily determines the size of the battery cell through image recognition, while the second acquisition module further accurately determines the size of the battery cell through light and shadow analysis. This double verification mechanism ensures accurate judgment of the size of the battery cell, thereby improving the overlap accuracy of the battery cell and the pit print on the aluminum-plastic film, and reducing deviations and errors.

[0014] 2. This solution dynamically adjusts the arrangement and combination of the pit-shaped adjustment components according to the size of the battery cell to form a molding die that matches the size of the battery cell. This adaptive ability enables the device to handle battery cells of different sizes without changing molds or making manual adjustments, improving production efficiency and flexibility.

[0015] 3. This solution helps reduce defects and defective product rates during the packaging process through precise size matching and automated packaging processes. The close fit between the battery cell and the aluminum-plastic film helps improve the performance and safety of the battery, thereby improving the overall product quality.

[0016] Furthermore, it also includes a first conveyor belt and a second conveyor belt; the first conveyor belt is used to transport the aluminum-plastic film into the packaging box, and the second conveyor belt is used to transport the packaged battery cells out of the packaging box.

[0017] Beneficial effect: The first conveyor belt is responsible for transporting the aluminum-plastic film from an external supply source directly into the packaging box without manual placement, which further reduces manual intervention and improves the level of automation.

[0018] The second conveyor belt is responsible for delivering the packaged battery cells from the packaging box and directly connecting them to subsequent processes or testing equipment, achieving seamless connection of the packaging process.

[0019] Furthermore, an inlet is provided on one side of the packaging box, and the inlet is located above the stamping plate.

[0020] Beneficial effect: The design of the entrance allows the battery cells to slide directly onto the stamping plate through the automatic delivery device, eliminating the need for manual placement of the battery cells, further improving the level of automation.

[0021] Furthermore, the pit-shaped adjustment component includes a plurality of base plates and a plurality of basic stamping blocks, and the base plates and the basic stamping blocks correspond one to one with the stamping plates; a plurality of telescopic grooves are arranged in the base plates, and telescopic pistons are slidably fitted in the telescopic grooves, and assembly plates are arranged at the bottom of the telescopic pistons, and the assembly plates are arranged circumferentially with the basic stamping blocks as the center; the telescopic grooves are respectively connected with conduits, and the conduits are all connected with upper confluence chambers, and a plurality of first electrically-controlled valves are arranged in the upper confluence chambers, and the first electrically-controlled valves correspond one to one with the conduits, and the first electrically-controlled valves are electrically connected to the control module; the upper confluence chamber is connected with an upper liquid storage chamber, and a first driving member is arranged in the upper liquid storage chamber, and the first driving member is used to realize the flow between the liquid in the upper liquid storage chamber and the main confluence chamber, and the first driving member is electrically connected to the control module.

[0022] Beneficial effect: The operation of the first driving member is precisely controlled by the control module, so that the liquid in the upper liquid storage chamber can be pumped into the upper confluence chamber, and then the telescopic pistons in each telescopic groove are adjusted by opening and closing the first electric control valve. This design enables the pit-shaped adjustment component to flexibly adjust the position of the assembly plate so that the size of the protruding area surrounded by the basic stamping block is completely consistent with the aluminum-plastic film pit to be formed.

[0023] Furthermore, the release component includes a pair of crossbeams, which are respectively located on both sides of the stamping plate; horizontal grooves are symmetrically arranged in at least one of the crossbeams, and a rotating shaft and a stepper motor are arranged in the horizontal grooves, and spiral grooves are symmetrically arranged on the rotating shaft, and the spiral grooves are intertwined and connected to each other, and the stepper motor is used to drive the rotating shaft to rotate, and the stepper motor is electrically connected to the control module; the spiral grooves are respectively slidably matched with protrusions, and the protrusions are respectively fixedly connected to the stamping plate.

[0024] Beneficial effect: By controlling the operation of the stepper motor, the shaft is driven to rotate, and the shaft drives the protrusion to move along the spiral groove, thereby driving the stamping plates to move back and forth. After the stamping plates are separated, the battery cell falls freely from the gap between the two stamping plates to complete the release.

[0025] The spiral groove design on the shaft allows the protrusion to follow a smooth trajectory during movement, avoiding sudden impact or jitter. This smooth release action helps protect the battery cell from damage and reduces packaging problems caused by improper release.

[0026] By precisely controlling the operation of the stepper motor through the control module, the rotation angle and speed of the shaft can be precisely adjusted, thereby controlling the movement trajectory of the protrusion along the spiral groove. This precise release control ensures the stability and consistency of the battery cell during the release process, reducing deviations and errors.

[0027] Precise release control and smooth release action help ensure that the battery cell can accurately fall into the pit of the aluminum-plastic film after release, reducing deviations and errors and improving packaging quality and consistency.

[0028] Furthermore, the moving component includes a servo motor, a lead screw and a nut seat; a lifting slide is provided on the inner wall of the packaging box, the servo motor is located at one end of the lifting slide, one end of the lead screw is rotationally matched with the lifting slide, the other end of the lead screw is axially fixedly connected to the output shaft of the servo motor, the nut seat is threadably matched with the lead screw, and the nut seat is fixedly connected to one end of the crossbeam; the servo motor is electrically connected to the control module.

[0029] Beneficial effect: Through the precise control of the servo motor, the rotation of the lead screw can be precisely adjusted, thereby controlling the moving distance and speed of the nut seat on the lead screw. This precise lifting control ensures the stability and accuracy of the stamping plate during the lifting process.

[0030] Furthermore, a plurality of movable grooves are circumferentially arranged on the top of the pressure platform, and one side of the top of the movable grooves is connected with the basic stamping groove; a plurality of hydraulic grooves are arranged on the bottom of the basic stamping grooves, and piston rods are slidably fitted in the hydraulic grooves, and pressure blocks are arranged on the tops of the piston rods, and adjacent pressure blocks are slidably fitted, and the pressure blocks and the movable grooves are slidably fitted; the hydraulic grooves are respectively connected with liquid delivery channels, and the liquid delivery channels are connected with the lower confluence chamber, and a plurality of second electrically-controlled valves are arranged in the lower confluence chamber, and the second electrically-controlled valves correspond to the liquid delivery channels one by one, respectively, and the lower confluence chamber is connected with the lower liquid storage chamber, and the lower liquid storage chamber is provided with a second driving member, and the second driving member is used to realize the flow between the liquid in the lower liquid storage chamber and the main confluence chamber, and the second driving member is electrically connected to the control module.

[0031] Beneficial effects: By precisely controlling the opening and closing of each second electric control valve through the control module, the pressure in different hydraulic grooves can be independently adjusted. This design enables the pressure block to move according to the preset program, thereby flexibly adjusting the area of ​​the basic stamping groove. This flexibility ensures that the stamping process can accurately adapt to the pits (pits on the aluminum-plastic film) of different sizes, improving the adaptability and flexibility of production.

[0032] Furthermore, the thermoplastic module includes a packaging carrier; a heat sealing groove is provided on the packaging carrier, and a side sealing plate and a top sealing plate are slidably fitted in the heat sealing groove, a side sealing groove and a top sealing groove are also provided on one side of the heat sealing groove, and a side sealing hydraulic cylinder and a top sealing hydraulic cylinder are respectively provided in the side sealing groove and the top sealing groove, the output shaft of the side sealing hydraulic cylinder is fixedly connected to the side sealing plate, the output shaft of the top sealing hydraulic cylinder is fixedly connected to the top sealing plate, heating elements are provided in the top sealing plate and the side sealing plates, and the side sealing hydraulic cylinder, the top sealing hydraulic cylinder and the heating element are all electrically connected to the control module.

[0033] Beneficial effect: the formed aluminum-plastic film and battery cell are inserted into the heat-sealing groove through the clamping module, and the aluminum-plastic film is folded in half using the side wall of the heat-sealing groove (that is, the side where the pit is formed is folded toward the side where the pit is not formed, so that the battery cell is clamped between the aluminum-plastic films). The control module controls the heating elements in the side sealing plates and the top sealing plates to heat them so that the temperatures of the top sealing plates and the side sealing plates reach preset values. Then the control module drives the side sealing hydraulic cylinders and the top sealing hydraulic cylinders to operate so that the side sealing plates and the top sealing plates press the side edges and top edges of the aluminum-plastic film together, thereby sealing the side edges and the top plate of the aluminum-plastic film.

[0034] Furthermore, the control module is also used to determine the crease position based on the size and position of the battery cell, and control the pit adjustment component to perform synchronous indentation processing.

[0035] Beneficial effect: By punching holes and pressing out creases on the aluminum-plastic film, the aluminum-plastic film can be positioned more accurately during the subsequent folding process, thereby avoiding the problem of poor heat sealing caused by inaccurate folding. This precise positioning and folding helps improve the quality of heat sealing and ensures that the battery cell is effectively encapsulated in the aluminum-plastic film.

[0036] Because the control module can precisely control the location and shape of the creases and pits, it can ensure consistent packaging quality for each battery cell. This consistency helps improve the overall quality and reliability of the product.

[0037] Furthermore, a clustering tube is provided between the upper confluence chamber and the stamping plate, and the clustering tube is used to centrally store all the conduits.

[0038] Beneficial effect: The cluster tube collects all the conduits together, avoiding the disorder of the conduits and making the layout of the entire equipment neater and more orderly. By clustering the conduits together, the space occupied by the conduits can be effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The three-dimensional structure schematic diagram of a soft-pack lithium manganese iron phosphate battery packaging automation device of the present invention.

[0040] Figure 2 for Figure 1 Top view of the .

[0041] Figure 3 for Figure 2 Cross-section view along the AA direction.

[0042] Figure 4 for Figure 3 A partial enlarged schematic diagram of the internal structure at point M in the middle.

[0043] Figure 5 for Figure 4 Partial top view of the middle stamping plate.

[0044] Figure 6 for Figure 3 A partial enlarged schematic diagram of point P in the middle.

[0045] Figure 7 for Figure 3 A partial enlarged schematic diagram of point N in the middle.

[0046] The reference numerals in the drawings of the specification include: 1, workbench; 2, packaging box; 3, entrance; 4, first conveyor belt; 5, second conveyor belt; 6, clamping module; 7, packaging carrier; 101, lower liquid storage chamber; 102, lower confluence chamber; 103, connecting pipe; 104, pressure platform; 105, basic stamping groove; 106, hydraulic groove; 107, movable groove; 108, piston column; 109, pressure block; 110, liquid delivery channel; 201, LED lamp; 202, upper liquid storage chamber; 203, upper confluence chamber; 204, camera; 205, servo motor machine; 206, lifting slide; 207, lead screw; 208, nut seat; 209, cluster tube; 210, crossbeam; 211, horizontal groove; 212, rotating shaft; 213, spiral groove; 214, protrusion; 215, stamping plate; 216, basic stamping block; 217, bottom plate; 218, telescopic groove; 219, telescopic piston; 220, assembly plate; 221, catheter; 701, heat sealing groove; 702, side sealing plate; 703, side sealing groove; 704, side sealing hydraulic cylinder; 705, top sealing hydraulic cylinder; 706, top sealing groove; 707, top sealing plate. DETAILED DESCRIPTION

[0047] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0048] In the description of the present invention, it is to be understood that the terms “longitudinal”, “lateral”, “vertical”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 understood as a limitation on the present invention.

[0049] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0050] The following is further described in detail through specific implementation methods:

[0051] The embodiment is basically as shown in the attached Figure 1-Figure 7 Shown is a soft-pack lithium manganese iron phosphate battery packaging automation device, comprising a workbench 1, on which a packaging box 2 and a control module are arranged.

[0052] Specifically, the packaging box 2 is provided with a stamping module, a clamping module 6 and a thermoplastic module. The stamping module includes a light-emitting element, at least one pair of stamping plates 215, a pressure platform 104, a moving component, a releasing component, a first collecting module and a second collecting module. Figure 1 As shown, an inlet 3 is opened on one side of the packaging box 2, and the inlet 3 is located above the stamping plate 215. Specifically, the inlet 3 is also connected to an inclined channel so that the battery cell can slide smoothly from the inlet 3 to the upper end surface of the stamping plate 215.

[0053] Preferably, the light-emitting component is installed on the inner top wall of the packaging box 2 by screws. The light-emitting component is used to emit light to the stamping plate 215. In this embodiment, the light-emitting component is an infrared light LED lamp 201, which has a long wavelength, strong penetrating power and is harmless to the human body.

[0054] Preferably, a pair of stamping plates 215 are provided in this embodiment. The stamping plates 215 are located below the light-emitting component. The two stamping plates 215 are on the same horizontal plane, and the edges of the two stamping plates 215 are in contact with each other. The upper end surfaces of the stamping plates 215 are combined to form a bearing area. Specifically, the bearing area is mainly located near the contact point of the two stamping plates 215. Preferably, each of the stamping plates 215 provides 1 / 2 of the area for the bearing area, and the bearing area is used to carry the battery cell. The bottom of the stamping plates 215 is provided with a pit-shaped adjustment component; the pit-shaped adjustment component is used to arrange and combine into molding molds of different sizes. Specifically, in combination with the attached Figure 4 As shown, the pit-shaped adjustment assembly includes a plurality of bottom plates 217 and a plurality of basic stamping blocks 216. The bottom plates 217 and the basic stamping blocks 216 correspond to the stamping plates 215 one by one. Preferably, in this embodiment, two stamping plates 215 form a rectangular block, and the bottom plates 217 are distributed around the rectangular block. Specifically, a bottom plate 217 is provided on each of the left and right sides of the rectangular block, and two bottom plates 217 are provided on each of the front and rear sides of the rectangular block, for a total of six bottom plates. A plurality of telescopic grooves 218 are arranged in an array in the bottom plate 217, and telescopic pistons 219 are slidably fitted in the telescopic grooves 218. Assembly plates 220 are welded and fixed to the bottom of the telescopic pistons 219. The assembly plates 220 are arranged circumferentially with the basic stamping block 216 as the center. Specifically, the assembly plates 220 are expanded outwards layer by layer with the basic stamping block 216 as the center; the telescopic grooves 218 are respectively connected to conduits 221, and the conduits 221 are connected to the upper confluence chamber 203. Specifically, the upper confluence chamber 203 is opened on the top of the packaging box 2. A plurality of first electrically controlled valves are arranged in the chamber 203, and the first electrically controlled valves correspond to the conduits 221 one by one, that is, each first electrically controlled valve controls the on and off of a conduit 221, and the first electrically controlled valves are electrically connected to the control module; the upper confluence chamber 203 is connected to the upper liquid storage chamber 202, and a first driving member is installed in the upper liquid storage chamber 202. In this embodiment, the first driving member is a two-way pump, that is, it takes into account both positive pressure and negative pressure. The first driving member is used to realize the flow between the liquid in the upper liquid storage chamber 202 and the main confluence chamber, and the first driving member is electrically connected to the control module. Preferably, a cluster tube 209 is also arranged between the upper confluence chamber 203 and the stamping plate 215, and the cluster tube 209 is used to collect all the conduits 221 in a centralized manner. Specifically, the two ends of the cluster tube 209 are respectively bonded and fixed to the top wall and one side of the bottom plate 217 of the packaging box 2.

[0055] Specifically, the pressure platform 104 is arranged on the top of the workbench 1, directly below the stamping plate 215. The pressure platform 104 is mainly used to place the aluminum-plastic film. A basic stamping groove 105 is provided on the top of the pressure platform 104. The size of the basic stamping groove 105 is the same as the area of ​​the basic stamping block 216. When the basic stamping block 216 moves to the pressure platform 104, the basic stamping block 216 is consistent with the basic stamping groove 105. Preferably, a plurality of movable grooves 107 are provided on the top of the pressure platform 104 in a circumferential direction. Figure 6As shown, the top left side of the movable groove 107 is connected to the basic stamping groove 105; the bottom of the basic stamping groove 105 is provided with a plurality of hydraulic grooves 106, and the hydraulic grooves 106 are slidably matched with piston rods 108, and pressure blocks 109 are welded and fixed on the top of the piston rods 108, and the adjacent pressure blocks 109 are slidably matched, and the pressure blocks 109 and the movable groove 107 are slidably matched; the hydraulic grooves 106 are respectively connected with liquid delivery channels 110, specifically, the liquid delivery channels 110 are opened in the workbench 1, and the liquid delivery channels 110 are connected with the lower confluence chamber 102, and the lower confluence chamber 10 2 is provided with a plurality of second electrically controlled valves, the second electrically controlled valves correspond to the liquid delivery channels 110 one by one, and each second electrically controlled valve controls the on and off of a liquid delivery channel 110 respectively. The lower confluence chamber 102 is connected with the lower liquid storage chamber 101. Specifically, the lower confluence chamber 102 is connected with the lower liquid storage chamber 101 through a connecting pipe 103. A second driving member is installed in the lower liquid storage chamber 101. In this embodiment, the second driving member also adopts a bidirectional pump. The second driving member is used to realize the flow between the liquid in the lower liquid storage chamber 101 and the main confluence chamber. The second driving member is electrically connected to the control module. Preferably, in this embodiment, the liquids in the upper liquid storage chamber 202 and the lower liquid storage chamber 101 are hydraulic oil.

[0056] The release assembly is used to release the battery cell carried by the stamping plate 215 onto the aluminum-plastic film; Figure 5 As shown, the release assembly includes a pair of crossbeams 210, which are respectively located at the top of both sides of the stamping plate 215, and the crossbeams 210 are respectively slidably matched with the inner wall of the packaging box 2. Figure 4 As shown, at least one beam 210 is symmetrically provided with horizontal grooves 211, a rotating shaft 212 and a stepper motor are arranged in the horizontal grooves 211, spiral grooves 213 are symmetrically provided on the rotating shaft 212, and the spiral grooves 213 are interconnected and staggered, the stepper motor is fixed to one end of the horizontal groove 211 by bolts, the output shaft of the stepper motor is axially welded and fixed to the lead screw 207, and the stepper motor is electrically connected to the control module; the spiral grooves 213 are respectively slidably matched with protrusions 214, specifically, the protrusions 214 are columnar structures, the top of the protrusions 214 are hemispherical, and the protrusions 214 are respectively welded and fixed to the top of the stamping plate 215.

[0057] Specifically, the moving assembly is used to move all the stamping plates 215 to the top of the pressure platform 104. The moving assembly mainly includes a servo motor 205, a lead screw 207 and a nut seat 208; Figure 3As shown, a lifting slot 206 is provided on the inner wall of the packaging box 2, and the servo motor 205 is fixed to the top of the lifting slot 206 by bolts. The bottom of the lead screw 207 is rotatably matched with the bottom of the lifting slot 206, and the top of the lead screw 207 is axially welded and fixed to the output shaft of the servo motor 205. The nut seat 208 is threadedly matched with the lead screw 207, and the nut seat 208 is welded and fixed to the right end of the crossbeam 210. Specifically, the nut seat 208 includes a nut seat 208 body and a longitudinal beam, which is referred to as the nut seat 208 in this article. The crossbeam 210 and the longitudinal beam together form a "Π" shape, so that the crossbeam 210 can be lifted and lowered synchronously with the nut seat 208; the servo motor 205 is electrically connected to the control module.

[0058] The first acquisition module is used to obtain parameter information of the carried battery cell. Preferably, the first acquisition module is a camera 204 installed on the top of the packaging box 2. The camera 204 acquires image information of the battery cell, and the size of the battery cell can be preliminarily determined.

[0059] The second acquisition module is used to collect light and shadow information after the light passes through the battery cell. Preferably, in this embodiment, a transparent layer is provided on the top of the stamping plate 215, and the second acquisition module is a surface acquisition unit composed of a plurality of photosensitive diodes, and the photosensitive diodes are respectively arranged in the transparent layer, and the position of each photosensitive diode corresponds to the position of the assembly board 220. When the light is directed to the battery cell, a shadow area will be formed in the transparent layer at the bottom of the battery cell, and the control module can judge the size of the battery cell based on the area size of the shadow area.

[0060] The control module is used to combine the information collected by the first acquisition module and the second acquisition module, comprehensively judge the size of the battery cell carried on the stamping plate 215, and control the operation of the pit adjustment component, the moving component and the release component based on the size of the battery cell.

[0061] Combined with Figure 3 As shown, it also includes a first conveyor belt 4 and a second conveyor belt 5; the first conveyor belt 4 is used to transport the aluminum-plastic film into the packaging box 2, and the second conveyor belt 5 is used to transport the packaged battery cells out of the packaging box 2.

[0062] The thermoplastic module is used to encapsulate the aluminum-plastic film and the battery cell. Specifically, the thermoplastic module includes an encapsulation carrier 7; a heat-sealing groove 701 is provided on the top of the encapsulation carrier 7, and a side sealing plate 702 and a top sealing plate 707 are slidably matched in the heat-sealing groove 701. A side sealing groove 703 and a top sealing groove 706 are also provided on the left side of the heat-sealing groove 701, and a side sealing hydraulic cylinder 704 and a top sealing hydraulic cylinder 705 are respectively installed in the side sealing groove 703 and the top sealing groove 706. The output shaft of the side sealing hydraulic cylinder 704 is welded and fixed to the side sealing plate 702, and the output shaft of the top sealing hydraulic cylinder 705 is welded and fixed to the top sealing plate 707. A heating element is built in the top sealing plate 707 and the side sealing plate 702. In this embodiment, the heating element is an electric heating pipe, and the side sealing hydraulic cylinder 704, the top sealing hydraulic cylinder 705 and the heating element are all electrically connected to the control module.

[0063] The clamping module 6 is used to transport the aluminum-plastic film formed on the pressure platform 104 together with the battery cell to the thermoplastic module; preferably, in this embodiment, the clamping module 6 is a robot, with a total of 2 sets of robots, which are respectively used to transfer the aluminum-plastic film on the first conveyor belt 4 to the pressure platform 104, and to transfer the aluminum-plastic film (containing the battery cell) on the pressure platform 104 to the heat sealing groove 701 and to transfer the battery cell that has completed the packaging (side sealing and top sealing) in the heat sealing groove 701 to the second conveyor belt 5. Specifically, when the robot transfers the aluminum-plastic film (containing the battery cell) to the heat sealing groove 701, one side of the aluminum-plastic film (i.e., the side without the pit) is brought into contact with the top of the packaging carrier 7 to tilt it, so that when the aluminum-plastic film (containing the battery cell) is inserted into the heat sealing groove 701, one side of the aluminum-plastic film (i.e., the side without the pit) can be better folded to the side of the battery cell.

[0064] Preferably, the control module is also used to determine the crease position based on the size and position of the battery cell, and control the pit-shaped adjustment component to perform synchronous indentation processing.

[0065] The specific implementation process is as follows: slide the battery cell from the entrance 3 into the bearing area at the top of the stamping plate 215, put the aluminum-plastic film on the first conveyor belt 4, transfer the aluminum-plastic film to the pressure platform 104 through the clamping module 6, and the control module collects the information of the battery cell in real time through the first acquisition module and the second acquisition module. First, the position and size of the battery cell are preliminarily determined through the image collected by the first acquisition module, and then the light-emitting component is driven to operate, and the light and shadow image of the battery cell is obtained by the second acquisition module. Based on the position and size of the shadow area in the light and shadow image, correction is performed to obtain the final position and size of the battery cell. At the same time, the control module determines the appropriate fold position based on the position and size of the battery cell.

[0066] Then, the first driving member and the first electrically-controlled valve are controlled to operate so that the telescopic piston 219 in the telescopic groove 218 directly below the battery cell moves outward, so that the assembly plate 220 and the basic stamping plate 215 are combined to form a forming mold adapted to the size of the battery cell (while taking into account the crease formed by stamping, the same below); at the same time, the second driving member and the second electrically-controlled valve are controlled to operate so that the corresponding pressure block 109 sinks to be flush with the bottom of the basic stamping groove 105, so that the forming mold formed by the combination of the assembly plate 220 and the basic stamping plate 215 is consistent with the groove formed by the combination of the basic stamping groove 105 and the movable groove 107.

[0067] Then the control module drives the servo motor 205 to run, so that the punching plate 215 moves downward to the pressure platform 104, until the basic punching block 216 and the assembly plate 220 contact the basic punching groove 105 and the top of the pressure block 109, then the servo motor 205 is controlled to run, so that the punching plate 215 is lifted up a distance (this distance is the height of the basic punching block 216), and then the stepper motor is controlled to run, and the stepper motor drives the rotating shaft 212 to drive and then drive the protrusion 214 and the punching plate 215 to separate to both sides, so that the battery core at the top of the punching plate 215 falls freely into the pit on the aluminum-plastic film from the gap between the punching plates 215 (against the side walls of the punching plates 215), and then the punching block is reset. At this time, the aluminum-plastic film on the pressure platform 104 is a rectangle with pits and folds, and the pits contain battery cores.

[0068] The control module controls the clamping module 6 to transfer the aluminum-plastic film (containing the battery cell, the same below) on the pressure platform 104 to the heat-sealing groove 701. During the transfer process, the clamping module 6 (manipulator) lifts the aluminum-plastic film horizontally, then rotates it 90 degrees, and then moves horizontally, so that one side of the aluminum-plastic film (without pits) contacts the top of the packaging carrier 7 and bends, until the clamping module 6 inserts the aluminum-plastic film into the heat-sealing groove 701. While inserting, the aluminum-plastic film is folded in half. Then the control module drives the side sealing hydraulic cylinder 704 and the top sealing hydraulic cylinder 705 to operate, and the aluminum-plastic film is pressed together by the top sealing plate 707 and the side sealing plate 702 to complete the top sealing and side sealing. Then the control module controls the clamping module 6 to transfer the pre-sealed battery cell to the second conveyor belt for subsequent processing.

[0069] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A soft-pack lithium manganese iron phosphate battery packaging automation device, comprising a workbench (1), on which a packaging box (2) and a control module are arranged; the packaging box (2) is provided with a stamping module, a clamping module (6) and a thermoplastic module; characterized in that: The stamping module comprises a light-emitting component, at least one pair of stamping plates (215), a pressure platform (104), a moving component, a releasing component, a first collecting module and a second collecting module; the light-emitting component is located on the inner wall of the packaging box (2), and is used to emit light to the stamping plate (215); the stamping plate (215) is located below the light-emitting component, and the upper end surface of the stamping plate (215) is combined to form a bearing area, and the bearing area is used to bear the battery cell; the bottom of the stamping plate (215) is provided with a pit-shaped adjustment component; the pressure platform (104) is located below the stamping plate (215), and the pressure platform (104) is used to place the aluminum-plastic film, and the top of the pressure platform (104) is provided with a basic stamping groove (105); the moving component is located On one side of the stamping plate (215), the moving component is used to move all the stamping plates (215) to the top of the pressure platform (104); the releasing component is located at the top of the stamping plate (215), and the releasing component is used to release the battery cells carried on the stamping plate (215) onto the aluminum-plastic film; the first acquisition module is used to obtain parameter information of the carried battery cells, the second acquisition module is used to collect light and shadow information after light passes through the battery cells, and the pit-shaped adjustment component is used to arrange and combine into forming molds of different sizes; the control module is used to combine the information collected by the first acquisition module and the second acquisition module, comprehensively judge the size of the battery cells carried on the stamping plate (215), and control the operation of the pit-shaped adjustment component, the moving component and the releasing component based on the size of the battery cells; The clamping module (6) is used to transport the aluminum-plastic film formed on the pressure platform (104) together with the battery core to the thermoplastic module; Thermoplastic modules are used to encapsulate aluminum-plastic films and battery cells.

2. The soft-pack lithium manganese iron phosphate battery packaging automation device according to claim 1, characterized in that: It also comprises a first conveyor belt (4) and a second conveyor belt (5); the first conveyor belt (4) is used to convey the aluminum-plastic film into the packaging box (2), and the second conveyor belt (5) is used to convey the packaged battery cells out of the packaging box (2).

3. The soft-pack lithium manganese iron phosphate battery packaging automation device according to claim 2, characterized in that: An inlet (3) is provided on one side of the packaging box (2), and the inlet (3) is located above the stamping plate (215).

4. The soft-pack lithium manganese iron phosphate battery packaging automation device according to claim 3, characterized in that: The pit-shaped adjustment assembly comprises a plurality of bottom plates (217) and a plurality of basic stamping blocks (216), wherein the bottom plates (217) and the basic stamping blocks (216) correspond to the stamping plates (215) one by one; a plurality of telescopic grooves (218) are arranged in the bottom plates (217), and telescopic pistons (219) are slidably fitted in the telescopic grooves (218), and an assembly plate (220) is arranged at the bottom of the telescopic pistons (219), and the assembly plates (220) are arranged circumferentially with the basic stamping blocks (216) as the center; the telescopic grooves (218) are respectively connected to the bottom plates (218) and the bottom plates (220 ... There is a conduit (221), and the conduits (221) are all connected to an upper confluence chamber (203). A plurality of first electrically controlled valves are arranged in the upper confluence chamber (203), and the first electrically controlled valves correspond to the conduits (221) one by one, and the first electrically controlled valves are all electrically connected to a control module; the upper confluence chamber (203) is connected to an upper liquid storage chamber (202), and a first driving member is arranged in the upper liquid storage chamber (202), and the first driving member is used to realize the flow between the liquid in the upper liquid storage chamber (202) and the main confluence chamber, and the first driving member is electrically connected to the control module.

5. The soft-pack lithium manganese iron phosphate battery packaging automation device according to claim 4, characterized in that: The release assembly comprises a pair of crossbeams (210), wherein the crossbeams (210) are respectively located at the top of both sides of a stamping plate (215); at least one crossbeam (210) is symmetrically provided with a horizontal groove (211), a rotating shaft (212) and a stepping motor are respectively provided in the horizontal groove (211), spiral grooves (213) are symmetrically provided on the rotating shaft (212), the spiral grooves (213) are mutually staggered and connected, the stepping motor is used for driving the rotating shaft (212) to rotate, and the stepping motor is electrically connected to the control module; the spiral grooves (213) are respectively slidably matched with protrusions (214), and the protrusions (214) are respectively fixedly connected to the stamping plate (215).

6. The soft-pack lithium manganese iron phosphate battery packaging automation device according to claim 5, characterized in that: The moving assembly comprises a servo motor (205), a lead screw (207) and a nut seat (208); a lifting slot (206) is arranged on the inner side wall of the packaging box (2); the servo motor (205) is located at one end of the lifting slot (206); one end of the lead screw (207) is rotationally matched with the lifting slot (206); the other end of the lead screw (207) is axially fixedly connected to the output shaft of the servo motor (205); the nut seat (208) is threadedly matched with the lead screw (207); the nut seat (208) is fixedly connected to one end of the crossbeam (210); and the servo motor (205) is electrically connected to the control module.

7. The soft-pack lithium manganese iron phosphate battery packaging automation device according to claim 6, characterized in that: A plurality of movable grooves (107) are arranged circumferentially on the top of the pressure-bearing platform (104), and one side of the top of the movable grooves (107) is connected to the basic stamping groove (105); a plurality of hydraulic grooves (106) are arranged at the bottom of the basic stamping groove (105), and piston rods (108) are slidably fitted in the hydraulic grooves (106), and pressure blocks (109) are arranged on the tops of the piston rods (108), and adjacent pressure blocks (109) are slidably fitted, and the pressure blocks (109) and the movable grooves (107) are slidably fitted; the hydraulic grooves (106) ) are respectively connected with a liquid delivery channel (110), and the liquid delivery channel (110) is connected with a lower confluence chamber (102). A plurality of second electrically-controlled valves are arranged in the lower confluence chamber (102), and the second electrically-controlled valves correspond to the liquid delivery channels (110) one by one. The lower confluence chamber (102) is connected with a lower liquid storage chamber (101), and a second driving member is arranged in the lower liquid storage chamber (101), and the second driving member is used to realize the flow between the liquid in the lower liquid storage chamber (101) and the main confluence chamber, and the second driving member is electrically connected to the control module.

8. The soft-pack lithium manganese iron phosphate battery packaging automation device according to claim 7, characterized in that: The thermoplastic module comprises a packaging carrier (7); a heat sealing groove (701) is arranged on the packaging carrier (7); a side sealing plate (702) and a top sealing plate (707) are slidably matched in the heat sealing groove (701); a side sealing groove (703) and a top sealing groove (706) are also arranged on one side of the heat sealing groove (701); a side sealing hydraulic cylinder (704) and a top sealing hydraulic cylinder (705) are arranged in the side sealing groove (703) and the top sealing groove (706) respectively; an output shaft of the side sealing hydraulic cylinder (704) is fixedly connected to the side sealing plate (702); an output shaft of the top sealing hydraulic cylinder (705) is fixedly connected to the top sealing plate (707); heating elements are arranged in the top sealing plate (707) and the side sealing plate (702); and the side sealing hydraulic cylinder (704), the top sealing hydraulic cylinder (705) and the heating element are all electrically connected to the control module.

9. The soft-pack lithium manganese iron phosphate battery packaging automation device according to claim 8, characterized in that: The control module is also used to determine the crease position based on the size and position of the battery cell, and control the pit adjustment component to perform synchronous indentation processing.

10. The soft-pack lithium manganese iron phosphate battery packaging automation device according to claim 9, characterized in that: A cluster tube (209) is also provided between the upper confluence chamber (203) and the stamping plate (215), and the cluster tube (209) is used to centrally store all the conduits (221).

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