A soft-pack lithium manganese iron phosphate battery packaging automation device

Abstract

The present invention discloses an automated packaging device for soft-pack lithium manganese iron phosphate batteries, which is applicable to the field of soft-pack battery packaging technology. The device comprises a workbench equipped with a packaging box and a control module. The packaging box is provided with a stamping module, a clamping module, and a thermoplastic module. The stamping module includes a light-emitting element, at least one pair of stamping plates, a pressure-bearing platform, a moving assembly, a releasing assembly, a first acquisition module, and a second acquisition module. The bottoms of the stamping plates are each provided with a pit-shaped adjustment assembly. The first acquisition module is used to obtain parameter information of the battery cell, the second acquisition module is used to collect light and shadow information, and the pit-shaped adjustment assembly is used to arrange the forming mold. The control module is used to combine the information collected by the first and second acquisition modules to comprehensively determine the size of the battery cell carried on the stamping plate and control the operation of the pit-shaped adjustment assembly. The thermoplastic module is used to perform the packaging process. This solution can ensure that the battery cell and the pit on the aluminum-plastic film precisely overlap, improving the accuracy of the packaging process.

Description

Technical Field

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

[0002] Amid the rapid development of the new energy industry, soft-pack lithium manganese iron phosphate batteries, with their high energy density, long lifespan, and safety, are becoming a mainstream product in the electric vehicle and new energy sectors. The packaging process for soft-pack batteries is a critical step, with its quality and efficiency directly impacting battery performance and production costs.

[0003] Aluminum-plastic film is the primary packaging material for soft-pack lithium batteries. It consists of an outer nylon layer (ON), an adhesive, an intermediate layer of aluminum foil (Al), an adhesive layer, and an inner heat-seal layer (CPP). Before packaging, the aluminum-plastic film undergoes a punching and forming process, whereby a cavity is punched into the film to accommodate the battery cell. This process, also known as punching, involves using a heated mold to punch a cavity into the film to accommodate the battery cell. 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 cells need to be placed into the holes, and then sealed from the sides. Because the size and shape of the cells and the holes must be perfectly matched, even the slightest deviation can prevent the cells from accurately aligning with the holes. While existing technologies utilize automated equipment and control systems, manual intervention and adjustments are still required during the cell placement and side-sealing steps, resulting in insufficient production efficiency and quality stability.

[0005] In view of the shortcomings of the existing technology, there is an urgent need for an automated packaging device that can quickly and accurately position the battery cell in the aluminum-plastic film pit, 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 an automated packaging device for soft-pack lithium manganese iron phosphate batteries, which can ensure that the battery cells and the pits on the aluminum-plastic film are accurately aligned, 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 includes a workbench, 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 includes a light-emitting component, at least a pair of stamping plates, a pressure platform, a moving component, a release 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, which is used to bear the battery cell, and the bottom of the stamping plate is provided with a pit-shaped adjustment component; the pressure platform is located below the stamping plate, and the pressure platform is used to place the aluminum-plastic film, and the top of the pressure platform is used to press the pressure plate. The part is provided with a basic stamping groove; the moving component is located on one side of the stamping plate, and the moving component is used to move all the stamping plates to the top of the pressure platform; the releasing component is located on the top of the stamping plate, and the releasing component is used to release the battery cells carried on the stamping plate 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 to comprehensively judge the size of the battery cells 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 cells;

[0009] The clamping module is used to transport the aluminum-plastic film formed on the pressure platform together with the battery cells 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 solution places an aluminum-plastic film on a pressure platform and a battery cell on the bearing area at the top of the stamping plate. The first acquisition module collects image information of the battery cell to preliminarily determine the size of the battery cell. The light-emitting component then emits light to the battery cell. After the light is emitted to the battery cell, the second acquisition module collects light and shadow information at this time. The size of the shadow area of ​​the battery cell in the light and shadow information is further determined to determine the size of the battery cell. After combining the information of the two, the control module can more accurately determine the size of the pit required for the battery cell, and then control the operation of the pit shape 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 shape adjustment component is used to leave a corresponding pit mark on the aluminum-plastic film on the pressure platform. The control module then controls the release component to operate to expand the stamping plate, allowing the battery cell to fall freely into the formed pit mark. The battery cell and the aluminum-plastic film are then transferred to the thermoplastic module for packaging through the clamping module.

[0013] Compared to existing technologies, this solution integrates a first acquisition module and a second acquisition module, enabling the device to accurately acquire cell dimensions. The first acquisition module uses image recognition to initially determine cell size, while the second acquisition module further refines the cell dimensions through light and shadow analysis. This dual verification mechanism ensures accurate cell size determination, thereby improving the alignment accuracy between the cell and the indentation on the aluminum-plastic film, reducing deviations and errors.

[0014] 2. This solution uses a pit-shaped adjustment component to dynamically adjust the arrangement and combination according to the size of the battery cell, forming a forming mold that matches the cell size. This adaptive capability enables the device to handle battery cells of different sizes without changing molds or manual adjustments, improving production efficiency and flexibility.

[0015] 3. This solution helps reduce defects and rejects during the packaging process through precise size matching and automated packaging. The tight fit between the battery cell and the aluminum-plastic film helps improve battery performance and safety, thereby enhancing 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 the external supply source directly into the packaging box, without the need for manual placement, further reducing human intervention and improving 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 into 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 assembly 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 to the stamping plates; a plurality of telescopic grooves are provided in the base plates, and telescopic pistons are slidably fitted in the telescopic grooves, and an assembly plate is provided at the bottom of the telescopic pistons, and the assembly plates are circumferentially arranged 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 to 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 provided 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 Effects: The control module precisely controls the operation of the first drive element, pumping liquid from the upper liquid storage chamber into the upper confluence chamber. The opening and closing of the first electrically controlled valve then regulates the telescopic pistons in each telescopic slot. This design allows the pit-shape adjustment assembly to flexibly adjust the position of the assembly plate, ensuring that the size of the protruding area enclosed by the base stamping block perfectly matches the desired aluminum-plastic film pit.

[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 crossbeam, and a rotating shaft and a stepper motor are respectively 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 fitted 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, and then drives the stamping plates to move back to each other. After the stamping plates are separated, the battery cell falls freely from the gap between the two stamping plates, thereby completing the release.

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

[0026] By precisely controlling the stepper motor's operation through the control module, the rotation angle and speed of the shaft can be precisely adjusted, thereby controlling the 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 cells fall accurately into the pits 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 engaged 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 threadedly engaged 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 Effects: Through the precise control of the servo motor, the rotation of the screw can be precisely adjusted, thereby controlling the movement distance and speed of the nut seat on the 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 groove is connected with the basic stamping groove; a plurality of hydraulic grooves are arranged on the bottom of the basic stamping groove, and a piston column is slidably fitted in the hydraulic groove, and a pressure block is arranged on the top of the piston column, 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 one by one to the liquid delivery channels, 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 electrically controlled valve through the control module, the pressure within each hydraulic tank can be independently adjusted. This design enables the pressure-bearing block to move according to a pre-set program, flexibly adjusting the area of ​​the basic stamping tank. This flexibility ensures that the stamping process can precisely adapt to the required pit sizes (pits on the aluminum-plastic film), improving production adaptability and flexibility.

[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. 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, and 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 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 temperature of the top sealing plates and the side sealing plates reaches the preset value. Then the control module drives the side sealing hydraulic cylinder and the top sealing hydraulic cylinder 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-shaped adjustment component to perform synchronous indentation processing.

[0035] Beneficial Effect: By simultaneously punching the holes and creating creases in the aluminum-plastic film, the film can be more accurately positioned during the subsequent folding process, thus avoiding poor heat sealing caused by inaccurate folding. This precise positioning and folding helps improve heat sealing quality and ensures that the battery cells are effectively encapsulated in the aluminum-plastic film.

[0036] Because the control module precisely controls the location and shape of the creases and dimples, it ensures consistent packaging quality across every battery cell. This consistency helps improve the overall quality and reliability of the product.

[0037] Furthermore, a cluster pipe is provided between the upper confluence chamber and the stamping plate, and the cluster pipe is used to centrally accommodate all the conduits.

[0038] Beneficial effects: The cluster tubes centrally store all the conduits, avoiding a chaotic arrangement 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 This is a schematic diagram of the three-dimensional structure 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 .

[0041] Figure 3 for Figure 2 Cross-section view in 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 local 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 light; 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, conduit; 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] The following describes embodiments of the present invention in detail. Examples of the embodiments 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0048] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "vertical", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting 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 communication 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 As shown: A soft-pack lithium manganese iron phosphate battery packaging automation device includes 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 entrance 3 is opened on one side of the packaging box 2, and the entrance 3 is located above the stamping plate 215. Specifically, the entrance 3 is also connected to an inclined channel so that the battery cell can slide smoothly from the entrance 3 to the upper end surface of the stamping plate 215.

[0053] Preferably, the light-emitting component is installed on the 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 part. The two stamping plates 215 are on the same horizontal plane, and the edges of the two are attached to each other. The upper end faces of the stamping plates 215 are combined to form a bearing area. Specifically, the bearing area is mainly located near the attachment of the two stamping plates 215. Preferably, each stamping plate 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 plate 215 is provided with a pit-shaped adjustment component; the pit-shaped adjustment component is used to arrange and combine into forming 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, the two stamping plates 215 form a rectangular block, and the bottom plates 217 are distributed around the rectangular block, as shown in FIG. 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. A plurality of telescopic slots 218 are arranged in an array in the bottom plates 217, and telescopic pistons 219 are slidably fitted in the telescopic slots 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 slots 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. Several first electrically controlled valves are disposed within chamber 203. These first electrically controlled valves correspond one-to-one with the conduits 221, meaning each first electrically controlled valve controls the on / off switching of a conduit 221. Each first electrically controlled valve is electrically connected to a control module. The upper confluence chamber 203 is connected to the upper liquid storage chamber 202, which contains a first driver. In this embodiment, the first driver is a bidirectional pump, capable of pumping both positive and negative pressure. The first driver is used to facilitate the flow of liquid from the upper liquid storage chamber 202 to the main confluence chamber, and is electrically connected to the control module. Preferably, a cluster tube 209 is further disposed between the upper confluence chamber 203 and the stamping plate 215. The cluster tube 209 is used to centrally house all conduits 221. Specifically, the two ends of the cluster tube 209 are bonded and fixed to the top wall and one side of the bottom plate 217 of the packaging box 2, respectively.

[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 aligned 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 left side of the top of the movable groove 107 is connected to the basic stamping groove 105; a number of hydraulic grooves 106 are opened at the bottom of the basic stamping groove 105, and the hydraulic grooves 106 are all slidably matched with piston rods 108. The tops of the piston rods 108 are welded and fixed with pressure blocks 109. The adjacent pressure blocks 109 are slidably matched, and the pressure blocks 109 and the movable grooves 107 are slidably matched; the hydraulic grooves 106 are respectively connected with liquid feeding channels 110. Specifically, the liquid feeding channels 110 are opened in the workbench 1, and the liquid feeding channels 110 are connected with the lower confluence chamber 102. The lower confluence chamber 102 is connected to the lower confluence chamber 102. 2 is equipped with a plurality of second electrically controlled valves, each of which corresponds to a liquid delivery channel 110. Each second electrically controlled valve controls the on / off of a liquid delivery channel 110. The lower confluence chamber 102 is connected to the lower liquid storage chamber 101. Specifically, the lower confluence chamber 102 and the lower liquid storage chamber 101 are connected via 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 of liquid between 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 liquid in both the upper liquid storage chamber 202 and the lower liquid storage chamber 101 is hydraulic oil.

[0056] The release assembly is used to release the battery cell carried on the stamping plate 215 onto the aluminum-plastic film; specifically, in combination with the attached Figure 5 As shown, the release assembly includes a pair of crossbeams 210, which are respectively located on 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, and a rotating shaft 212 and a stepper motor are provided in the horizontal grooves 211. Spiral grooves 213 are symmetrically provided on the rotating shaft 212, and the spiral grooves 213 are interconnected. The stepper motor is fixed to one end of the horizontal groove 211 by bolts, and 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 fitted with protrusions 214, specifically, the protrusions 214 are cylindrical structures, and 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 beam 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 beam 210 and the longitudinal beam together form a "Π" shape, so that the beam 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 collects image information of the battery cell and can preliminarily determine the size of the battery cell.

[0059] The second acquisition module is used to collect light and shadow information after light passes through the battery cell. Preferably, in this embodiment, a transparent layer is provided on top of the stamping plate 215. The second acquisition module is a surface acquisition unit composed of a plurality of photodiodes. The photodiodes are arranged in the transparent layer, and the position of each photodiode corresponds to the position of the assembly plate 220. When light is directed at the battery cell, a shadow area is formed in the transparent layer at the bottom of the battery cell. The control module can determine the size of the battery cell based on the area 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 to 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 attachment 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 cells. Specifically, the thermoplastic module includes a packaging carrier 7; a heat-sealing groove 701 is defined at the top of the packaging carrier 7, and a side sealing plate 702 and a top sealing plate 707 are slidably fitted within the heat-sealing groove 701. A side sealing groove 703 and a top sealing groove 706 are also defined on the left side of the heat-sealing groove 701. A side sealing hydraulic cylinder 704 and a top sealing hydraulic cylinder 705 are respectively installed within the side sealing groove 703 and the top sealing groove 706. The output shaft of the side sealing hydraulic cylinder 704 is welded to the side sealing plate 702, and the output shaft of the top sealing hydraulic cylinder 705 is welded to the top sealing plate 707. Both the top sealing plate 707 and the side sealing plate 702 have built-in heating elements. In this embodiment, the heating elements are electric heating pipes. The side sealing hydraulic cylinder 704, the top sealing hydraulic cylinder 705, and the heating elements 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 cells to the thermoplastic module; preferably, in this embodiment, the clamping module 6 is a robot, with a total of two sets of robots, which are respectively used to transfer the aluminum-plastic film on the first conveyor belt 4 to the pressure platform 104, transfer the aluminum-plastic film (containing the battery cells) on the pressure platform 104 to the heat sealing groove 701, and transfer the battery cells that have 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 cells) to the heat sealing groove 701, one side of the aluminum-plastic film (i.e., the side without the dents) is brought into contact with the top of the packaging carrier 7, causing it to tilt, so that when the aluminum-plastic film (containing the battery cells) is inserted into the heat sealing groove 701, the one side of the aluminum-plastic film (i.e., the side without the dents) can be better folded over the side of the battery cells.

[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: the battery cell slides from the entrance 3 into the load-bearing area at the top of the stamping plate 215, the aluminum-plastic film is placed on the first conveyor belt 4, and the clamping module 6 transfers the aluminum-plastic film to the pressure platform 104. The control module uses the first and second acquisition modules to collect battery cell information in real time. First, the image captured by the first acquisition module is used to preliminarily determine the position and size of the battery cell. Then, by driving the light-emitting element, the second acquisition module is used to obtain a light and shadow image of the battery cell. Based on the position and size of the shadow area in the light and shadow image, corrections are made to determine the final position and size of the battery cell. Simultaneously, the control module determines the appropriate crease 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 that adapts to the size of the battery cell (while taking into account the creases 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 coincides with the groove formed by the combination of the basic stamping groove 105 and the movable groove 107.

[0067] Then control module drives servo motor 205 operation, punch plate 215 is moved down on bearing platform 104, until basic punching block 216 and assembly plate 220 contact with basic punching groove 105 and bearing block 109 tops, then control servo motor 205 operation, punch plate 215 is lifted upwards a distance (this distance is the height of basic punching block 216), then control stepper motor operation, stepper motor drives rotating shaft 212 to drive and then drive projection 214 and punch plate 215 to separate to both sides, the battery core at punch plate 215 tops is freely fallen in the pit on the aluminum-plastic film from the space (sticking to punch plate 215 sidewalls) between punch plate 215, and then punch block is reset.Now the aluminum-plastic film on bearing platform 104 is a rectangle with pit and fold, and battery core is accommodated in the pit.

[0068] The control module controls the clamping module 6 to transfer the aluminum-plastic film (containing the battery cells, the same below) on the pressure platform 104 into 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 moves it horizontally, so that the side of the aluminum-plastic film (without the pit) contacts the top of the packaging carrier 7 and bends it, until the clamping module 6 inserts the aluminum-plastic film into the heat-sealing groove 701. During the insertion, the aluminum-plastic film is folded in half. The control module then drives the side sealing hydraulic cylinder 704 and the top sealing hydraulic cylinder 705 to operate, using the top sealing plate 707 and the side sealing plates 702 to press the aluminum-plastic film together, completing the top and side sealing. The clamping module 6 then controls the transfer of the pre-sealed battery cells to the second conveyor belt for subsequent processing.

[0069] The above is only an embodiment of the present invention, and common knowledge such as the specific structure and / or characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection 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 the light-emitting component 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 core; 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), a moving assembly is used to move all the stamping plates (215) to the top of the pressure platform (104); the releasing assembly is located on the top of the stamping plate (215), and the releasing assembly is used to release the battery core 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 core, the second acquisition module is used to collect light and shadow information after light passes through the battery core, and the pit shape adjustment assembly 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 core carried on the stamping plate (215), and control the operation of the pit shape adjustment assembly, the moving assembly, and the releasing assembly based on the size of the battery core; 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 module is used to encapsulate aluminum-plastic film and battery cells; The pit-shaped adjustment assembly includes a plurality of base plates (217) and a plurality of basic stamping blocks (216), and the base plates (217) and the basic stamping blocks (216) correspond to the stamping plates (215) one by one; a plurality of telescopic grooves (218) are provided in the base plates (217), and telescopic pistons (219) are slidably fitted in the telescopic grooves (218); an assembly plate (220) is provided at the bottom of the telescopic pistons (219), and the assembly plate (220) is arranged circumferentially with the basic stamping block (216) as the center; A plurality of movable grooves (107) are circumferentially arranged on the top of the pressure platform (104), and one side of the top of the movable groove (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 with each other, and the pressure blocks (109) and the movable grooves (107) are slidably fitted with each other.

2. The automated packaging device for soft-pack lithium manganese iron phosphate batteries according to claim 1, characterized in that: 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).

3. The automated packaging device for soft-pack lithium manganese iron phosphate batteries 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 automated packaging device for soft-pack lithium manganese iron phosphate batteries according to claim 3, characterized in that: The telescopic slots (218) are each connected to a conduit (221), and the conduits (221) are each 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 one-to-one to the conduits (221). The first electrically controlled valves are each 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). 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 automated packaging device for soft-pack lithium manganese iron phosphate batteries 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); a horizontal groove (211) is symmetrically arranged in at least one crossbeam (210), a rotating shaft (212) and a stepping motor are respectively arranged in the horizontal groove (211), and spiral grooves (213) are symmetrically arranged on the rotating shaft (212), wherein the spiral grooves (213) are mutually staggered and connected, and 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 automated packaging device for soft-pack lithium manganese iron phosphate batteries 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 chute (206) is provided on the inner side wall of the packaging box (2); the servo motor (205) is located at one end of the lifting chute (206); one end of the lead screw (207) is rotationally matched with the lifting chute (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); and 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 automated packaging device for soft-pack lithium manganese iron phosphate batteries according to claim 6, characterized in that: The hydraulic tank (106) is connected to a liquid delivery channel (110), and the liquid delivery channel (110) is connected to 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 to a lower liquid storage chamber (101), and a second driving member is arranged in the lower liquid storage chamber (101). 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 automated packaging device for soft-pack lithium manganese iron phosphate batteries according to claim 7, characterized in that: The thermoplastic module comprises a packaging carrier (7); a heat sealing groove (701) is provided 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 further provided on one side of the heat sealing groove (701); a side sealing hydraulic cylinder (704) and a top sealing hydraulic cylinder (705) are respectively provided in the side sealing groove (703) and the top sealing groove (706); 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 provided in the top sealing plate (707) and the side sealing plate (702); 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 automated packaging device for soft-pack lithium manganese iron phosphate batteries 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 automated packaging device for soft-pack lithium manganese iron phosphate batteries according to claim 9, characterized in that: A cluster tube (209) is further provided between the upper confluence chamber (203) and the stamping plate (215), and the cluster tube (209) is used to centrally accommodate all the conduits (221).

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