A battery piece assembling machine

Abstract

The application relates to the technical field of battery piece assembling, and discloses a battery piece assembling machine, which comprises a rack, a feeding device fixedly connected to the upper surface of the rack, a conveying mechanism fixedly connected to the outer wall of the rack, a support fixedly connected to the upper surface of the rack, an electric push rod fixedly connected to the outer wall of the support, a sliding rod fixedly connected to the output end of the electric push rod, a pressing head fixedly connected to the bottom end of the sliding rod, a fixing frame fixedly connected to the outer wall of the pressing head, a reset mechanism connected to the fixing frame, and a horn mouth connected to the reset mechanism. The conical guide surface of the horn mouth can automatically guide the deviated patch into the central area of the pressing head, so that accurate deviation correction before pressing is realized. Meanwhile, the horn mouth limits the freedom degree of the patch in the horizontal direction during the pressing process, effectively prevents the patch from slipping or warping due to uneven stress, and significantly improves the pressing yield of the product.

Description

Technical Field

[0001] This invention relates to the field of battery cell assembly technology, specifically to a battery cell assembly machine. Background Technology

[0002] In the field of photovoltaic cell module or electronic component assembly, the mounting and lamination of solar cells are core processes that determine the conductivity and structural reliability of the product. Existing solar cell assembly machines typically include a frame, a conveyor mechanism, a loading device, and a lamination head driven by an electric push rod. The workflow is as follows: the loading device transports the solar cell to be laminated to the clamps of the conveyor mechanism; subsequently, the lamination head descends vertically under the drive of an electric or pneumatic cylinder, applying a set pressure to the cell to bond it to the substrate or base below. To improve lamination quality, some machines integrate heating functions within the lamination head to achieve a hot-pressing process, or add a vision positioning system to assist in cell alignment.

[0003] However, in actual continuous production, the patch is prone to slight horizontal shifts or rotations due to static electricity, airflow disturbances, or positioning errors, resulting in the patch and substrate contours not accurately aligning. Although the vision system can identify the offset, the pressing head itself lacks physical correction capabilities. If the patch is not positioned correctly, pressing down will directly cause the product to be scrapped. Secondly, because the flexible patch is thin and has adhesive backing, when the pressing head applies direct vertical pressure, if the center area of ​​the patch is stressed before the edges or the stress is uneven, the patch is very likely to slip, wrinkle, or warp at the moment of contact (commonly known in the industry as the "ruffled edge" phenomenon). This will seriously damage the grid alignment accuracy of the cell, and may even lead to fragmentation or microcracks, significantly reducing the product yield. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a battery cell assembly machine that solves the problems that, in actual continuous production processes, the cells are prone to horizontal shifting or rotation, and that the cells may slip, wrinkle, or warp at the moment of contact, resulting in fragmentation or microcracks, which significantly reduce the yield of the products.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a battery cell assembly machine, comprising a frame, a feeding device fixedly connected to the upper surface of the frame, a conveying mechanism fixedly connected to the outer wall of the frame, a support fixedly connected to the upper surface of the frame, an electric push rod fixedly connected to the outer wall of the support, a slide rod fixedly connected to the output end of the electric push rod, a pressing head fixedly connected to the bottom end of the slide rod, a fixing frame fixedly connected to the outer wall of the pressing head, a reset mechanism connected to the fixing frame, and a flared mouth connected to the reset mechanism.

[0006] The above scheme involves a feeding device for feeding materials, an electric push rod driving a sliding rod to press down, and a pressing head for pressing. The flared mouth is located on the periphery of the pressing head and is used to limit the patch on the upper side. It can be corrected when pressing down and at the same time prevent the pressing state from shifting.

[0007] Preferably, the conveying mechanism includes a conveyor belt device, which is disposed on the outer wall of the frame, and a clamp is provided on the upper surface of the conveyor belt device.

[0008] Preferably, the reset mechanism includes an outer cylinder, which is fixedly connected to the outer wall of the flared mouth, and an inner rod is slidably connected to the inner wall of the outer cylinder, with the top end of the inner rod fixedly connected to the lower surface of the fixing frame.

[0009] Preferably, a spring is fixedly connected to the outer wall of the outer cylinder, and the outer wall of the spring is fixedly connected to the lower surface of the fixing frame.

[0010] Preferably, a housing is fixedly connected to the lower surface of the electric push rod, a piston plate is slidably connected inside the housing, the piston plate is fixedly connected to the outer wall of the slide rod, and an electric heating tube is fixedly connected inside the pressing head.

[0011] Preferably, a telescopic tube is fixedly connected to the lower surface of the outer shell, the bottom end of the telescopic tube is fixedly connected to the upper surface of the pressing head, an air jet port is opened inside the pressing head, and an air inlet is fixedly connected to the outer wall of the telescopic tube.

[0012] Preferably, a one-way valve is fixedly connected inside the air inlet and the telescopic pipe.

[0013] Preferably, a telescopic rod is fixedly connected to the lower surface of the fixing frame, and a scraper is fixedly connected to the bottom end of the telescopic rod.

[0014] Preferably, one end of a connecting rod is rotatably connected to the outer wall of the flared mouth, and the other end of the connecting rod is rotatably connected to a connecting rod, the bottom end of which is fixedly connected to the upper surface of the scraper.

[0015] Preferably, the outer wall of the connecting rod is rotatably connected to a rotating shaft, and the outer wall of the rotating shaft is fixedly connected to the outer wall of the pressing head.

[0016] This invention provides a battery cell assembly machine. It has the following beneficial effects:

[0017] 1. This invention, by setting a flared opening and its matching reset mechanism, ensures that the flared opening contacts the patch before the pressing head contacts the workpiece. The tapered guide surface of the flared opening automatically guides the misaligned patch into the central area of ​​the pressing head, achieving precise correction before pressing. Simultaneously, the flared opening restricts the patch's horizontal freedom during pressing, effectively preventing patch slippage or warping caused by uneven force, significantly improving the product's pressing yield.

[0018] 2. This invention utilizes the cooperation of the outer shell, piston plate, telescopic tube, and one-way valve to generate high-pressure gas through the downward pressing action of the pressing head, which is then ejected through an air jet nozzle inside the pressing head. This blows away surface dust and fiber debris from the battery cells during pressing, and, in conjunction with the flared nozzle, forms a downward-facing annular air curtain, creating a positive pressure barrier that effectively prevents external dust from entering the pressing interface. Furthermore, the gas also creates an air spring effect at the pressing end, providing flexible pressure compensation and preventing microcracks in the battery cells caused by hard pressing.

[0019] 3. This invention achieves automatic lifting and lowering of the scraper by setting a telescopic rod, scraper, and linkage mechanism linked to the flared end. During the pressing process, the scraper automatically slides down and fits over the outside of the patch under the drive of the linkage; when the pressing head rises and resets, the scraper rises accordingly and scrapes off the excess adhesive squeezed out during the pressing process, effectively avoiding burrs or protrusions formed after the adhesive has cured. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is a partial structural diagram of the support structure of the present invention;

[0022] Figure 3 This is a schematic diagram of a partial structure of the flared mouth of the present invention;

[0023] Figure 4 This is a schematic diagram of a partial structure of the outer shell of the present invention;

[0024] Figure 5 This is a cross-sectional view of the internal structure of the outer shell of the present invention;

[0025] Figure 6 for Figure 5 An enlarged schematic diagram of point A in the middle;

[0026] Figure 7 This is a partial structural diagram of the pressing head of the present invention;

[0027] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0028] Figure 9 This is a cross-sectional view of the internal structure of the flared mouth of the present invention;

[0029] Figure 10 for Figure 9 Enlarged diagram of point C in the middle.

[0030] The components are as follows: 1. Frame; 2. Conveying mechanism; 201. Conveyor belt device; 202. Clamp; 3. Feeding device; 4. Support; 5. Electric push rod; 6. Slide rod; 7. Pressing head; 8. Reset mechanism; 801. Outer cylinder; 802. Inner rod; 803. Spring; 9. Trumpet mouth; 10. Outer shell; 11. Piston plate; 12. Air inlet; 13. Telescopic tube; 14. Scraper; 15. Telescopic rod; 16. Connecting rod; 17. Rotating shaft; 18. Connecting rod; 19. Fixing frame. Detailed Implementation

[0031] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see the appendix Figure 1 - Appendix Figure 10 This invention provides a battery cell assembly machine, including a frame 1. A feeding device 3 is fixedly connected to the upper surface of the frame 1. A conveying mechanism 2 is fixedly connected to the outer wall of the frame 1. A bracket 4 is fixedly connected to the upper surface of the frame 1. An electric push rod 5 is fixedly connected to the outer wall of the bracket 4. A slide rod 6 is fixedly connected to the output end of the electric push rod 5. A pressing head 7 is fixedly connected to the bottom end of the slide rod 6. A fixing frame 19 is fixedly connected to the outer wall of the pressing head 7. A reset mechanism 8 is connected to the fixing frame 19. A flared mouth 9 is connected to the reset mechanism 8.

[0033] Specifically, the main frame of the assembly machine is a frame 1, which is made of high-strength cast iron or welded steel to ensure the stability of the equipment during operation and prevent a decrease in pressing accuracy due to vibration. A feeding device 3 is bolted to the upper surface of the frame 1. This feeding device 3 is typically equipped with a vibratory feeder or robotic arm gripping mechanism to accurately transport the flexible patch or battery cell skin to be pressed to a predetermined position. A conveying mechanism 2 is fixedly installed on the outer wall of the frame 1. This conveying mechanism 2 runs through the core working area of ​​the frame 1 and is responsible for carrying and transporting the substrate below. A support 4 is also welded or bolted to the upper surface of the frame 1. This support 4 is gantry-shaped and spans above the conveying mechanism 2, providing support for the pressing mechanism. An electric push rod 5 is fixedly installed on the top outer wall of the support 4. This electric push rod 5 uses a servo electric cylinder or a stepping cylinder, featuring controllable stroke and adjustable pressure. The output end of the electric push rod 5 points vertically downward and is fixedly connected to a slide rod 6 via a floating joint. The cross-sectional shape of the slide rod 6 is preferably rectangular or splined to prevent rotation during lifting and ensuring that the pressing head 7 connected to the lower end always maintains a fixed circumferential orientation. The bottom end of the slide rod 6 is fixedly connected to the pressing head 7 by threaded fasteners. The pressing head 7 is the component that directly contacts and applies force to the battery cell and can have a built-in heating rod to achieve a hot pressing process. The outer wall of the pressing head 7 is fixedly connected to a fixing frame 19 by screws. This fixing frame 19 serves as an intermediate connecting part for mounting peripheral auxiliary mechanisms. A reset mechanism 8 is connected to the fixing frame 19, and the lower end of the reset mechanism 8 is connected to a flared mouth 9. In the specific implementation process, the feeding device 3 is responsible for conveying the upper layer patch with backing adhesive or coating layer into place; the electric push rod 5 starts after receiving a control signal, driving the slide rod 6 and the pressing head 7 to press down vertically; the pressing head 7 applies a set pressure to the patch to bond it to the substrate; the flared mouth 9 is located around the periphery of the pressing head 7, and its inner diameter gradually increases from top to bottom, forming a conical guide surface. In the initial stage of pressing down, the flared end 9 first contacts the upper surface edge of the patch, and uses the conical surface to guide the patch that may be misaligned into the central area of ​​the pressing head 7, thereby achieving automatic correction. At the same time, the flared end 9 restricts the patch's degree of freedom in the horizontal direction, effectively preventing the patch from slipping or warping due to uneven force during pressing, and significantly improving the product yield.

[0034] The conveying mechanism 2 includes a conveyor belt device 201, which is disposed on the outer wall of the frame 1, and a clamp 202 is disposed on the upper surface of the conveyor belt device 201.

[0035] Specifically, the conveyor mechanism 2 is a key component for achieving automated continuous production, and it includes a conveyor belt device 201 and clamps 202. The conveyor belt device 201 is mounted on the outer wall of the frame 1 via rollers and is driven by a variable frequency motor. The motor is connected to the drive roller through a reducer, driving the closed-loop conveyor belt. The conveyor belt is preferably an anti-static polyurethane synchronous belt or a flat chain conveyor to ensure smooth operation and positioning accuracy. Multiple clamps 202 are evenly distributed on the upper surface of the conveyor belt device 201. The clamps 202 are fixed to the conveyor belt by quick clamps or magnetic adsorption. The design of the clamps 202 depends on the shape of the battery cell substrate to be processed, and they typically employ a contoured groove design with internal vacuum adsorption holes or elastic claws to firmly fix the base or substrate to be bonded. In practice, the conveyor belt device 201 moves intermittently under the drive of the motor, that is, it moves the distance of one workstation each time and then pauses to wait for the pressing operation above to complete before continuing to move.

[0036] The reset mechanism 8 includes an outer cylinder 801, which is fixedly connected to the outer wall of the flared mouth 9. An inner rod 802 is slidably connected to the inner wall of the outer cylinder 801, and the top end of the inner rod 802 is fixedly connected to the lower surface of the fixing frame 19.

[0037] Specifically, the outer cylinder 801 is cylindrical, and its outer wall is fixedly connected to the outer wall of the bell mouth 9 via a connecting flange or fastening clamp, ensuring that the two can move vertically synchronously. The inner wall of the outer cylinder 801 is precision polished and slidably connected to an inner rod 802. The cross-section of the inner rod 802 matches the inner wall of the outer cylinder 801 to ensure smooth sliding and coaxiality. The top end of the inner rod 802 is fixedly connected to the lower surface of the fixing frame 19 by a nut or set screw, so that the position of the inner rod 802 is fixed relative to the pressing head 7. When the pressing head 7 presses down, the bell mouth 9 first contacts the workpiece. Due to the obstruction of the workpiece and the conveying mechanism 2, the bell mouth 9 stops descending, while the fixing frame 19 and the inner rod 802 continue to descend with the pressing head 7. At this time, the inner rod 802 slides relative to the outer cylinder 801. The specific implementation logic is as follows: when the flared end 9 reaches its lowest point and contacts the clamp 202 or the substrate, if the pressing head 7 continues to press down, the outer cylinder 801 will slide upward relative to the inner rod 802. This design allows the pressing head 7 to continue descending to complete the pressing action even when the flared end 9 is already limited, avoiding equipment damage or workpiece crushing caused by dead-point interference. The reset mechanism 8 plays a dual role, ensuring the pre-tightening limit of the flared end 9 on the patch and releasing the downward stroke of the pressing head 7, thus realizing the logical control of step-by-step actions.

[0038] A spring 803 is fixedly connected to the outer wall of the outer cylinder 801, and the outer wall of the spring 803 is fixedly connected to the lower surface of the fixing frame 19.

[0039] Specifically, spring 803 is preferably a helical compression spring to provide stable elastic force. The upper end of spring 803 abuts against or is fixedly connected to the lower surface of the fixing frame 19, and the lower end abuts against or is fixedly connected to the flange at the top of the outer cylinder 801. In the initial state, spring 803 is in a pre-compressed state, and the preload is sufficient to support the weight of the flared mouth 9 and its connecting parts, and to maintain the relative positions of the parts. The specific implementation process is as follows: before the pressing head 7 is pressed down, spring 803 is in a naturally extended state, and the flared mouth 9 is located at the farthest end below the pressing head 7; when the flared mouth 9 is pressed down to the lowest end, spring 803 can be compressed to avoid motion interference and not hinder the pressing head 7 from continuing to press down; when the pressing head 7 completes pressing and begins to rise, spring 803 releases the accumulated elastic potential energy, pushing the outer cylinder 801 together with the flared mouth 9 to quickly return to the initial position. This protects the precision pressing head 7 from hard damage.

[0040] The lower surface of the electric push rod 5 is fixedly connected to the housing 10, the inside of the housing 10 is slidably connected to the piston plate 11, the piston plate 11 is fixedly connected to the outer wall of the slide rod 6, and the inside of the pressing head 7 is fixedly connected to the electric heating tube.

[0041] Specifically, the upper end of the outer casing 10 is closed and connected to the cylinder body of the electric push rod 5. A piston plate 11 is slidably connected inside the outer casing 10. The piston plate 11 is a plate whose outer diameter fits tightly with the inner wall of the outer casing 10, and a sealing ring is embedded at its edge to ensure good airtightness. The middle part of the piston plate 11 is fixedly connected to the outer wall of the slide rod 6 by bolts or pins. Thus, the slide rod 6 not only serves as a power transmission rod but also as a piston rod. Specifically, when the electric push rod 5 drives the slide rod 6 to perform linear reciprocating motion, the slide rod 6 simultaneously drives the piston plate 11 to slide axially inside the outer casing 10. This structure effectively constitutes a miniature cylinder or air pump. A variable-volume air chamber is formed between the outer casing 10 and the piston plate 11.

[0042] A telescopic tube 13 is fixedly connected to the lower surface of the outer casing 10. The bottom end of the telescopic tube 13 is fixedly connected to the upper surface of the pressing head 7. An air jet is provided inside the pressing head 7. An air inlet 12 is fixedly connected to the outer wall of the telescopic tube 13.

[0043] Specifically, to achieve online cleaning of the battery cell surface, a telescopic tube 13 is fixedly connected to the lower surface of the outer casing 10. The telescopic tube 13 can be made of polytetrafluoroethylene or silicone, possessing good telescopic performance and airtightness. The top end of the telescopic tube 13 communicates with the inner cavity of the outer casing 10, and the bottom end is fixedly connected to the upper surface of the pressing head 7 via a flange or clamp. The pressing head 7 has an air jet port inside, which is typically composed of multiple small oblique holes arranged in a ring array on the lower surface or side of the pressing head 7 and connected to the internal cavity of the telescopic tube 13. The specific implementation process is as follows: when the slide rod 6 drives the pressing head 7 to press down, the telescopic tube 13 is compressed accordingly; simultaneously, the piston plate 11 squeezes the air inside the outer casing 10 downwards, and the high-pressure gas rushes into the internal air passage of the pressing head 7 through the telescopic tube 13 and is ejected at high speed from the air jet port. Since the air jet port is usually designed to face the center of the pressing head 7 or obliquely downwards, the ejected airflow can directly act on the surface of the battery cell to be bonded. This action occurs momentarily before pressing, effectively blowing away dust, fiber debris, or tiny particles adhering to the surface of the solar cells. The high-speed airflow from the jet nozzle forms a downward-facing, annular air curtain upon encountering the conical inner wall of the horn-shaped nozzle 9. This air curtain not only blows away dust but also creates a positive pressure barrier around the pressing area, effectively preventing dust particles from the external environment from entering the pressing interface, similar to a clean bench. More importantly, it creates an air spring effect, providing flexible pressure compensation at the end of the pressing process, preventing microcracks in the solar cells caused by hard pressing.

[0044] A one-way valve is fixedly connected inside the air inlet 12 and the telescopic pipe 13.

[0045] Specifically, to ensure unidirectional flow in the air system, one-way valves are fixedly connected inside both the air inlet 12 and the telescopic pipe 13. The air inlet 12 is located on the upper side wall of the outer casing 10 or the side wall of the telescopic pipe 13, and is connected to an external compressed air source through an air pipe or serves only as an atmospheric air inlet. The one-way valve located at the air inlet 12 is an intake one-way valve, which only allows external air to enter the inner cavity of the outer casing 10, while preventing gas leakage from the inner cavity; the one-way valve located at the connection between the telescopic pipe 13 and the outer casing 10 or inside the telescopic pipe 13 is an exhaust one-way valve, which only allows gas to flow from the outer casing 10 to the pressure head 7, while preventing backflow of external gas. The specific implementation is as follows: when the electric push rod 5 drives the piston plate 11 to move upward and reset, the volume of the inner cavity of the outer casing 10 increases, the air pressure decreases, the intake one-way valve opens, and fresh external air is drawn into the outer casing 10; when the piston plate 11 moves downward and presses, the air pressure in the inner cavity increases, the intake one-way valve closes, the exhaust one-way valve opens, and high-pressure gas rushes towards the pressure head 7. This one-way valve design ensures pneumatic efficiency, generating an effective jet pulse with each downward press. The pressing head 7 has a built-in heating element, preheating the gas flowing through the telescopic tube 13 and the jet nozzle. This preheated gas, sprayed onto the battery cells, preheats the workpiece, reducing the temperature difference between the pressing head 7 and the cold workpiece, improving temperature control accuracy, and also accelerating the evaporation of solvents in the adhesive, promoting curing.

[0046] A telescopic rod 15 is fixedly connected to the lower surface of the fixed frame 19, and a scraper 14 is fixedly connected to the bottom end of the telescopic rod 15.

[0047] Specifically, to address the potential adhesive overflow issue during the coating process, a telescopic rod 15 is fixedly connected to the lower surface of the mounting bracket 19. The telescopic rod 15 consists of an outer sleeve and an inner guide rod, which can slide relative to each other. A scraper 14 is fixedly connected to the bottom end of the telescopic rod 15 via threads or adhesive. The scraper 14 is made of polytetrafluoroethylene or elastic rubber to avoid scratching the surface of the battery cell. When the flared end 9 slides between the pressing head 7 and the flared end 9, the connecting rod 16 drives the connecting rod 18 and the scraper 14 to slide. The flared end 9 and the scraper 14 slide in opposite directions. When the pressing head 7 continues to press down, the flared end 9 will press down and then rise after touching the bottom. During the rising phase, it slides between itself and the pressing head 7. At this time, the connecting rod 16 rotates, pushing the scraper 14 down to fit over the outside of the patch. When the pressing head 7 rises, the spring 803 rebounds, driving the scraper 14 to rise and scrape off the excess adhesive. While scraping off the excess adhesive, the scraper 14 also trims the edge of the adhesive layer after pressing. This mechanical trimming can create uniform rounded corners or flat cut surfaces on the edges of the glue, which is not only aesthetically pleasing but, more importantly, eliminates stress concentration points.

[0048] One end of a connecting rod 16 is rotatably connected to the outer wall of the flared mouth 9, and the other end of the connecting rod 16 is rotatably connected to a connecting rod 18. The bottom end of the connecting rod 18 is fixedly connected to the upper surface of the scraper 14.

[0049] Specifically, the connecting rod 16 is a rigid rod, and its other end is also connected to the connecting rod 18 via a rotating joint. The connecting rod 18 is a vertically arranged slender rod, and its bottom end is fixedly connected to the upper surface of the scraper 14 by a threaded fastener. When the flared mouth 9 slides between the pressing head 7 and the flared head 7, the connecting rod 16 drives the connecting rod 18 and the scraper 14 to slide. The flared mouth 9 and the scraper 14 slide in opposite directions. When the pressing head 7 continues to press down, the flared mouth 9 will press down and then rise after touching the bottom. During the rising phase, it slides between itself and the pressing head 7. At this time, the connecting rod 16 rotates, pushing the scraper 14 down to fit over the outside of the patch. When the pressing head 7 rises, the spring 803 rebounds, driving the scraper 14 to rise and scrape off the excess adhesive. At the moment of pressing, the scraper 14 extends downward to fit over the outside of the patch, scraping or removing the adhesive before it cures. Before conveying and the next pressing, the scraper 14 retracts to avoid collision or interference with the fixture 202 or the workpiece.

[0050] The outer wall of the connecting rod 16 is rotatably connected to the rotating shaft 17, and the outer wall of the rotating shaft 17 is fixedly connected to the outer wall of the pressing head 7.

[0051] Specifically, to ensure the stability and accuracy of the swing of the connecting rod 16, a rotating shaft 17 is rotatably connected to the outer wall of the connecting rod 16, serving as the fulcrum of the connecting rod 16. The rotating shaft 17 is a smooth shaft, with both ends fixedly connected to the outer wall of the pressing head 7 via bearing seats or brackets 4. The specific installation method is as follows: mounting ears are machined on the outer wall of the pressing head 7, and the rotating shaft 17 passes through the through hole on the connecting rod 16 and the bearing on the ear plate, realizing the rotatable connection between the connecting rod 16 and the pressing head 7.

[0052] Workflow: After the equipment starts, the conveyor belt device 201 of the conveying mechanism 2 moves intermittently under the drive of the variable frequency motor, accurately transporting the clamp 202 carrying the base material to the pressing station and pausing. At the same time, the feeding device 3 transports the flexible patch / skin to be pressed to the predetermined position directly below the pressing head 7 through a vibratory feeder or robotic arm, completing the material preparation. Subsequently, the control system activates the electric push rod 5, driving the slide rod 6 and the pressing head 7 to press down vertically. In the initial stage of pressing, the flared opening 9 located on the periphery of the pressing head 7 first contacts the edge of the patch's upper surface. Using its tapered guide surface with an inner diameter that gradually increases from top to bottom, the patch that may be misaligned is automatically guided into the center area of ​​the pressing head 7, achieving physical correction and restricting the patch's degree of freedom in the horizontal direction, thus preparing for pre-positioning to prevent slippage or warping during pressing.

[0053] After the horn-shaped opening 9 reaches its bottom limit, the pressing head 7 continues to descend. At this time, the inner rod 802 in the reset mechanism 8 slides relative to the outer cylinder 801, and the spring 803 is gradually compressed, allowing the pressing head 7 to continue descending even when the horn-shaped opening 9 has stopped, avoiding rigid interference. During the downward pressing motion, the slide rod 6 drives the piston plate 11 inside the outer casing 10 to move downward synchronously, compressing the air in the inner cavity. High-pressure gas rushes into the internal air passage of the pressing head 7 through the telescopic tube 13 and the one-way valve, and is ejected at high speed from the annular jet nozzle. This airflow directly blows away floating dust particles on the surface of the battery cell, and forms a downward air curtain barrier after encountering the conical wall of the horn-shaped opening 9, which plays a role in cleaning and dust prevention, and forms an "air spring" effect at the pressing end, providing flexible pressure compensation. Finally, the pressing head 7, which has a built-in electric heating tube, contacts the patch and applies the set temperature and pressure to complete the hot pressing process, so that the upper patch is tightly bonded to the substrate.

[0054] During the main pressing process, due to the relative sliding between the flared end 9 and the pressing head 7, the connecting rod 16, supported by the rotating shaft 17, rotates, pushing the connecting rod 18 and the scraper 14 at the bottom to extend downwards, precisely fitting around the outer edge of the patch. Before the adhesive cures, the scraper 14 physically scrapes and trims any excess adhesive that overflows during pressing, eliminating stress concentration points. After the pressing action is completed, the electric push rod 5 drives the sliding rod 6 and the pressing head 7 to rise and reset, and the spring 803 releases its elastic potential energy, pushing the outer cylinder 801 and the flared end 9 to quickly slide down to their initial positions; simultaneously, the piston plate 11 moves upwards, creating a negative pressure inside the outer shell 10, and the one-way valve of the air inlet 12 opens to draw in fresh air, storing energy for the next round of air jetting. As the flared end 9 resets, the connecting rod 16 rotates in the opposite direction, causing the scraper 14 to rise and retract synchronously. Finally, the conveying mechanism 2 restarts, removing the finished battery cell that has completed pressing and adhesive scraping from the workstation, while the next set of materials to be processed enters, and the above process is repeated.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A battery cell assembly machine, comprising a frame (1), wherein a feeding device (3) is fixedly connected to the upper surface of the frame (1), characterized in that, A conveying mechanism (2) is fixedly connected to the outer wall of the frame (1). A bracket (4) is fixedly connected to the upper surface of the frame (1). An electric push rod (5) is fixedly connected to the outer wall of the bracket (4). A slide rod (6) is fixedly connected to the output end of the electric push rod (5). A pressing head (7) is fixedly connected to the bottom end of the slide rod (6). A fixing frame (19) is fixedly connected to the outer wall of the pressing head (7). A reset mechanism (8) is connected to the fixing frame (19). A horn mouth (9) is connected to the reset mechanism (8).

2. The battery cell assembly machine according to claim 1, characterized in that, The conveying mechanism (2) includes a conveyor belt device (201), which is disposed on the outer wall of the frame (1), and a clamp (202) is provided on the upper surface of the conveyor belt device (201).

3. A battery cell assembly machine according to claim 2, characterized in that, The reset mechanism (8) includes an outer cylinder (801), which is fixedly connected to the outer wall of the horn mouth (9). An inner rod (802) is slidably connected to the inner wall of the outer cylinder (801), and the top end of the inner rod (802) is fixedly connected to the lower surface of the fixing frame (19).

4. A battery cell assembly machine according to claim 3, characterized in that, A spring (803) is fixedly connected to the outer wall of the outer cylinder (801), and the outer wall of the spring (803) is fixedly connected to the lower surface of the fixing frame (19).

5. A battery cell assembly machine according to claim 4, characterized in that, The lower surface of the electric push rod (5) is fixedly connected to a housing (10), and a piston plate (11) is slidably connected inside the housing (10). The piston plate (11) is fixedly connected to the outer wall of the slide rod (6), and an electric heating tube is fixedly connected inside the pressing head (7).

6. A battery cell assembly machine according to claim 5, characterized in that, The lower surface of the outer shell (10) is fixedly connected to a telescopic tube (13), the bottom end of the telescopic tube (13) is fixedly connected to the upper surface of the pressing head (7), the inside of the pressing head (7) is provided with an air jet port, and the outer wall of the telescopic tube (13) is fixedly connected to an air inlet (12).

7. A battery cell assembly machine according to claim 6, characterized in that, One-way valves are fixedly connected inside the air inlet (12) and the telescopic pipe (13).

8. A battery cell assembly machine according to claim 7, characterized in that, A telescopic rod (15) is fixedly connected to the lower surface of the fixed frame (19), and a scraper (14) is fixedly connected to the bottom end of the telescopic rod (15).

9. A battery cell assembly machine according to claim 8, characterized in that, One end of a connecting rod (16) is rotatably connected to the outer wall of the flared mouth (9), and the other end of the connecting rod (16) is rotatably connected to a connecting rod (18). The bottom end of the connecting rod (18) is fixedly connected to the upper surface of the scraper (14).

10. A battery cell assembly machine according to claim 9, characterized in that, The outer wall of the connecting rod (16) is rotatably connected to a rotating shaft (17), and the outer wall of the rotating shaft (17) is fixedly connected to the outer wall of the pressing head (7).

Images