Automatic final sealing machine for soft package sodium ion battery

Abstract

The utility model discloses an automatic final sealing machine for a soft package sodium ion battery, and belongs to the technical field of soft package battery processing. An automatic final sealing machine for a soft package sodium ion battery comprises a machine body base and a liftable vacuum cover installed on the machine body base, a mounting plate is arranged at the end, close to the vacuum cover, of the machine body base, a moving part is arranged between the mounting plate and the machine body base, a first motor is arranged on the mounting plate, and a second motor is arranged on the moving part. A weighing table is mounted at the output end of the first motor; the near end of the machine body base is provided with a cutting and stabbing piece, the far end of the machine body base is provided with a heat sealing piece and a vacuum opening, and the machine body base is provided with a liquid groove. The process steps of battery cell weighing, air bag cutting, air bag puncturing, liquid pumping, heat sealing and the like are integrated on one device, automatic one-button completion is achieved, the operation process is greatly simplified, and compared with traditional manual or semi-automatic devices, human intervention is reduced, human errors are reduced, and the consistency and stability of the final sealing effect are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of soft-pack battery processing, in particular to an automatic final sealing machine for soft-pack sodium ion batteries. Background Art

[0002] In the production process of soft-pack sodium-ion batteries, the final sealing of the battery cells is a crucial step. The main purpose of the final sealing is to extract the excess electrolyte and gas generated in the battery cells during the formation process to ensure the purity and stability of the battery, thereby improving the battery's performance and safety. However, existing final sealing machines have many problems and shortcomings during operation, which limit the further improvement of production efficiency and product quality.

[0003] Traditional final sealing of soft-pack batteries mostly relies on manual or semi-automatic equipment. This method is not only inefficient, but also prone to human errors, affecting the consistency of the final sealing effect. At the same time, due to the complexity of the operation, it requires high skills of workers, increasing production costs and human resource consumption. Summary of the Invention

[0004] The purpose of the utility model is to provide an automatic final sealing machine for soft-pack sodium ion batteries in response to the problems existing in the prior art.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solution: an automatic final sealing machine for soft-pack sodium-ion batteries, comprising a body base, and a vacuum cover installed on the body base and capable of being raised and lowered. A mounting plate is provided at one end of the body base close to the vacuum cover, a moving part is provided between the mounting plate and the body base, a No. 1 motor is provided on the mounting plate, and a weighing platform is installed at the output end of the No. 1 motor; a cutting and piercing part is provided at the proximal end of the body base, a heat sealing part and a vacuum port are provided at the distal end of the body base, and a liquid tank is provided on the body base.

[0006] By adopting the above technical solution, the final sealing machine integrates multiple automated mechanisms and equipment, such as electric push rods, motors, heat sealing heads, etc., to achieve fully automated processing of battery cells from placement to final sealing. This not only greatly improves production efficiency, but also reduces errors and safety hazards caused by manual operation.

[0007] Optionally, a pair of number one electric push rods are provided between the vacuum cover and the body base, and an observation window is provided on the surface of the vacuum cover.

[0008] By adopting the above technical solution, the one-to-one electric push rod provides a stable and reliable power source for the lifting and lowering of the vacuum cover, realizing the automatic lifting operation of the vacuum cover and improving work efficiency. At the same time, the design of the observation window allows the operator to observe the internal situation without opening the vacuum cover, facilitating real-time monitoring and adjustment, and improving the safety and accuracy of operation.

[0009] Optionally, the moving part includes a No. 2 motor installed on the inner side of the body base, and a screw rod is installed at the output end of the No. 2 motor. A pair of wire seats are mounted on the screw rod, and both of the pair of wire seats are connected to the mounting plate.

[0010] By adopting the above technical solution, the No. 2 motor drives the screw to rotate, and then drives the screw seat to move along the screw, realizing the automatic forward and backward movement of the mounting plate and the weighing platform on it on the body seat. This design simplifies the operation process, improves the degree of automation and flexibility of the equipment, and ensures the precise movement and positioning of the battery cell during the final sealing process.

[0011] Optionally, the cutting and stabbing member includes a pair of No. 2 electric push rods installed on the inner side of the body seat, and a connecting plate is installed at the output end of the No. 2 electric push rod. The end of the connecting plate close to the body seat is provided with a cutter and a puncture knife.

[0012] By adopting the above technical solution, the No. 2 electric push rod provides powerful power support for the cutting and puncturing parts, allowing the cutter and puncturing knife to quickly and accurately complete the cutting and puncturing operations on the battery cells. This design not only improves the pretreatment efficiency before final sealing, but also reduces the contact frequency between the bayonet and the electrolyte, thereby extending the service life of the bayonet.

[0013] Optionally, there are several puncture knives, each of which is connected to the connecting plate via a threaded column, and a surface of the mounting plate is provided with puncture holes corresponding to the puncture knives.

[0014] By adopting the above technical solution, several puncture knives are connected to the connecting plate through threaded columns, making the installation and replacement of the puncture knives convenient and quick. The puncture holes on the mounting plate ensure that the puncture knives can be accurately positioned when puncturing the battery cell, avoiding the occurrence of misoperation.

[0015] Optionally, the heat sealing component includes a pair of No. 3 electric push rods installed on the inner side of the body seat, the output end of the No. 3 electric push rod is installed with a fixing plate, and the end of the fixing plate close to the body seat is installed with a heat sealing head.

[0016] By adopting the above technical solution, the No. 3 electric push rod provides stable lifting power for the heat sealing head, ensuring that the heat sealing head can accurately heat seal the battery cells. The design of the heat sealing head ensures the uniformity and sealing of the heat sealing process, improving the packaging quality and reliability of the battery cells.

[0017] Optionally, the liquid tank is located between the vacuum port and the heat-sealing member, and the length of the liquid tank and the heat-sealing member is smaller than the width of the vacuum cover.

[0018] By adopting the above technical solution, the liquid tank is located between the vacuum port and the heat-sealing part, which is convenient for collecting and processing the liquid removed from the surface of the battery cell to prevent it from contaminating the equipment or work area. At the same time, the length of the liquid tank and the heat-sealing part is less than the width of the vacuum cover, ensuring that the liquid tank will not interfere with the sealing effect of the vacuum cover during the heat-sealing process, thereby ensuring the cleanliness and dryness of the final sealing environment.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. By integrating the process steps of cell weighing, air bag cutting, air bag puncturing, liquid extraction, and heat sealing into a single device and enabling automated, one-click completion, the operational process is greatly simplified. Compared with traditional manual or semi-automatic equipment, this reduces human intervention and human error, ensuring the consistency and stability of the final sealing effect. 2. The device is equipped with precision components such as a weighing platform, a cutting and puncturing piece, and a heat-sealing piece, which can accurately control key steps such as cell weighing, cutting, puncturing, and heat sealing. In particular, the puncturing blade in the cutting and puncturing piece is connected to the connecting plate via a threaded column, allowing for easy removal and replacement, ensuring accurate puncture and avoiding unnecessary damage to the battery cells during the final sealing process. It also reduces the frequency of contact between the blade and the electrolyte, thereby extending the blade's service life and significantly reducing liquid extraction time, thereby improving final sealing efficiency. 3. Due to its high degree of automation, workers only need to perform simple operations and maintenance, reducing the skill requirements. At the same time, the observation window and precise control component design on the device enable workers to clearly observe the final sealing process, allowing them to identify and resolve problems in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional closed structure of the final sealing machine of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional unfolded structure of the final sealing machine of the utility model;

[0023] Figure 3 This is a schematic diagram of the connection structure between the mounting plate and the moving part of the utility model;

[0024] Figure 4 This is a schematic diagram of the connection structure of the cutting knife, puncturing knife and connecting plate of the utility model.

[0025] In the figure: 1. Body base; 101. Mounting slot; 2. Vacuum cover; 201. Electric push rod No. 1; 3. Mounting plate; 301. Puncture hole; 4. Moving part; 41. Motor No. 2; 42. Screw rod; 43. Screw seat; 5. Motor No. 1; 6. Weighing platform; 7. Cutting and puncturing part; 701. Electric push rod No. 2; 702. Connecting plate; 703. Cutter; 704. Puncture knife; 7041. Threaded column; 8. Heat sealing part; 801. Electric push rod No. 3; 802. Fixing plate; 803. Heat sealing head; 9. Vacuum port; 10. Liquid tank. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They 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 direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] like Figure 1—4, the specific scheme of the embodiment is as follows: an automatic final sealing machine for soft-pack sodium ion batteries, including a body base 1, the body base 1 serves as the supporting structure of the entire device and carries all other components. The body base 1 is provided with a liquid suction device and a vacuum device. The liquid suction device is used to remove or control excess liquid on the surface of the soft-pack battery, and the vacuum device is used to create a vacuum environment during the final sealing process to remove bubbles inside the battery, improve the packaging quality, ensure the cleanliness and sealing of the battery packaging, and avoid the influence of bubbles on the battery performance. The surface of the body base 1 is provided with a mounting groove 101, the mounting groove 101 is located in the middle position of the surface of the body base 1, and a vacuum cover 2 is installed on the body base 1 and can be lifted and lowered. The vacuum cover 2 cooperates with the body base 1 during the lifting process to form a vacuum environment. The sealed space is improved through the sealing effect of the vacuum cover 2, and the efficiency of the vacuum treatment is improved. The width of the vacuum cover 2 is consistent with the width of the body base 1. A positioning plate is provided on the inner side of the vacuum cover 2. The positioning plate can accurately position the battery in the vacuum cover 2 to ensure that the battery is accurately positioned during the final sealing process and is not prone to position movement. A pair of No. 1 electric push rods 201 are provided between the vacuum cover 2 and the body base 1. The No. 1 electric push rods 201 can provide power to drive the lifting of the vacuum cover 2, thereby realizing automated operation and improving production efficiency and consistency. An observation window is provided on the surface of the vacuum cover 2. The design of the through window allows the operator to observe the internal situation without opening the vacuum cover 2, which is convenient for monitoring and adjustment, and improves the accuracy and safety of operation.

[0029] The body base 1 is provided with a mounting plate 3 at one end close to the vacuum cover 2, and the mounting plate 3 is used to install and support the No. 1 motor 5 and the weighing platform 6. The mounting plate 3 is rectangular, and a moving part 4 is provided between the mounting plate 3 and the body base 1, and the moving part 4 includes a No. 2 motor 41 installed on the inner side of the body base 1, and the output end of the No. 2 motor 41 is installed with a screw rod 42, which is located on the inner side of the mounting groove 101, and the end of the screw rod 42 away from the No. 2 motor 41 is connected to the inner side wall of the mounting groove 101 through a bearing, and a pair of wire seats 43 are sleeved on the screw rod 42, and the pair of wire seats 43 are both connected to the mounting plate 3, and the wire seats 43 are located on the inner side of the mounting groove 101, and the pair of wire seats 43 are in the same straight line. The moving part 4 drives the mounting plate 3 to move along the mounting groove 101 through the No. 2 motor 41, the screw rod 42 and the wire seat 43, thereby realizing the automatic movement of the weighing platform 6 and the battery, which is convenient for subsequent heat sealing and cutting operations.

[0030] The mounting plate 3 is provided with a No. 1 motor 5, and a weighing platform 6 is installed at the output end of the No. 1 motor 5. The No. 1 motor 5 can drive the weighing platform 6 to rotate 180 degrees, so as to determine the relative position of the seal and the heat sealing head 803, and meet the cutting and piercing of the air bag position before the final sealing, and make preparations for liquid extraction. The weighing platform 6 is disc-shaped, and the upper surface of the weighing platform 6 is on the same horizontal plane as the upper surface of the mounting plate 3. The weighing platform 6 can be used for weighing and connected to a computer through software to enter the weighing data into the computer in real time;

[0031] A cutting and puncturing member 7 is provided at the proximal end of the body base 1, and the cutting and puncturing member 7 includes a pair of No. 2 electric push rods 701 installed on the inner side of the body base 1. A connecting plate 702 is installed at the output end of the No. 2 electric push rod 701. A cutter 703 and a puncturing knife 704 are provided at one end of the connecting plate 702 close to the body base 1. There are several puncturing knives 704, and the puncturing knives 704 are connected to the connecting plate 702 through a threaded column 7041. A puncture hole 301 corresponding to the puncturing knife 704 is opened on the surface of the mounting plate 3. The connecting plate 702 is driven by the No. 2 electric push rod 701 to make the cutter 703 and the puncturing knife 704 cut and puncture the battery to remove excess parts or exhaust air, thereby improving the accuracy and sealing of the battery packaging.

[0032] A heat sealing member 8 and a vacuum port 9 are provided at the far end of the body base 1. The heat sealing member 8 includes a pair of No. 3 electric push rods 801 installed on the inner side of the body base 1. A fixing plate 802 is installed at the output end of the No. 3 electric push rod 801. A heat sealing head 803 is installed at one end of the fixing plate 802 close to the body base 1. The heat sealing member 8 drives the heat sealing head 803 to heat-seal the battery through the No. 3 electric push rod 801. The vacuum port 9 is used to further remove the gas inside the battery before heat sealing. There are two vacuum ports 9, and both vacuum ports 9 are connected to the vacuum equipment. A liquid tank 10 is provided on the body base 1. The liquid tank 10 can collect liquid removed from the surface of the battery to prevent it from contaminating the equipment or working area, thereby keeping the working environment clean and dry. The pipette pipette of the liquid suction device is connected to the liquid tank 10. The liquid tank 10 is located between the vacuum port 9 and the heat sealing member 8. The length of the liquid tank 10 and the heat sealing member 8 is less than the width of the vacuum cover 2.

[0033] The operating steps of the above embodiment are:

[0034] Start the machine for inspection to ensure that the power of the final sealing machine is connected, and all components (such as motor, electric push rod, vacuum equipment, etc.) are in normal working condition. Check whether the liquid tank 10 is clean, and whether the connection between the liquid suction device and the vacuum port 9 is tight and leak-free;

[0035] Start the final sealing machine control system software, connect it to the computer, and ensure that the weighing data can be entered and monitored in real time;

[0036] Place the soft-pack sodium-ion battery to be sealed on the scale to ensure the cell position is accurate;

[0037] After the system is started, the second motor 41 drives the screw 42 to rotate, and the screw seat 43 connected to the screw 42 drives the mounting plate 3 and the weighing platform 6 to move to the initial processing position;

[0038] The second electric push rod 701 on the body seat 1 automatically descends under program control, synchronously driving the cutter 703 and the puncture to accurately cut and puncture the excess air bags on the battery cell, remove unnecessary parts, and prepare for subsequent liquid extraction;

[0039] After the air bag is punctured, the mounting plate 3 moves to the bottom of the vacuum cover and then stops moving. At this time, the weighing system of the weighing platform 6 starts working and records the initial weight data of the battery cell into the computer in real time to provide a reference for subsequent analysis.

[0040] After weighing is completed, the first motor 5 is started, driving the weighing platform 6 to rotate 180 degrees, rotating the battery cell from the airbag handling position to the sealing position;

[0041] After rotating into place, the No. 1 electric push rod 201 drives the vacuum cover 2 to move down and cover the weighing platform 6. The vacuum equipment starts to work and vacuums the inside of the battery cell through the vacuum port 9 to remove bubbles and residual gas inside the battery cell and improve the packaging quality.

[0042] After the predetermined vacuum degree is reached inside the battery cell, the heat sealing member 8 is activated, and the heat sealing head 803 is driven down by the third electric push rod 801 to heat-seal the battery cell to ensure good sealing performance;

[0043] After heat sealing is completed, the system controls the vacuum equipment to stop working and perform vacuum release operation to balance the pressure inside the battery cell with the external environment;

[0044] After the sealing is completed, the weighing platform 6 rotates 180 degrees again and returns to the starting position, ready for the next round of operation or taking out the sealed battery cell;

[0045] After the weighing platform 6 returns to the starting position, the battery cells are weighed again, and the weight data after final sealing is recorded and compared with the initial weight to evaluate the final sealing effect.

[0046] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic final sealing machine for soft-pack sodium-ion batteries, comprising a body base and a vacuum cover mounted on the body base and capable of being raised and lowered, characterized in that: A mounting plate is provided at one end of the body base close to the vacuum cover, a moving part is provided between the mounting plate and the body base, a No. 1 motor is provided on the mounting plate, and a weighing platform is installed at the output end of the No. 1 motor; a cutting and piercing part is provided at the proximal end of the body base, a heat sealing part and a vacuum port are provided at the distal end of the body base, and a liquid tank is provided on the body base.

2. The automatic final sealing machine for soft-pack sodium-ion batteries according to claim 1, characterized in that: A pair of number one electric push rods are provided between the vacuum cover and the machine body seat, and an observation window is provided on the surface of the vacuum cover.

3. The automatic final sealing machine for soft-pack sodium-ion batteries according to claim 1, characterized in that: The moving part includes a No. 2 motor installed on the inner side of the body seat, and a screw rod is installed at the output end of the No. 2 motor. A pair of wire seats are sleeved on the screw rod, and the pair of wire seats are both connected to the mounting plate.

4. The automatic final sealing machine for soft-pack sodium-ion batteries according to claim 1, characterized in that: The cutting and stabbing member includes a pair of No. 2 electric push rods installed on the inner side of the body seat, the output end of the No. 2 electric push rod is installed with a connecting plate, and the end of the connecting plate close to the body seat is provided with a cutter and a puncture knife.

5. The automatic final sealing machine for soft-pack sodium-ion batteries according to claim 4, characterized in that: There are several puncture knives, which are connected to the connecting plate via threaded columns. The surface of the mounting plate is provided with puncture holes corresponding to the puncture knives.

6. The automatic final sealing machine for soft-pack sodium-ion batteries according to claim 1, characterized in that: The heat sealing component includes a pair of No. 3 electric push rods installed on the inner side of the body seat, the output end of the No. 3 electric push rods is installed with a fixing plate, and the end of the fixing plate close to the body seat is installed with a heat sealing head.

7. The automatic final sealing machine for soft-pack sodium-ion batteries according to claim 1, characterized in that: The liquid tank is located between the vacuum port and the heat sealing member, and the length of the liquid tank and the heat sealing member is smaller than the width of the vacuum cover.

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