Inverted rotary table air extraction sealing machine

Abstract

The utility model discloses an inverted rotary table air extraction sealing machine, including frame and vacuum pump, is provided with rotary table and is used for driving rotary table to make rotation's rotation drive mechanism on the frame, one side of rotary table is provided with operation panel, and the other side of rotary table is provided with upper seal cavity, is used for driving upper seal cavity to make the first elevating drive mechanism of lifting, lower seal cavity and be used for driving lower seal cavity to make the second elevating drive mechanism of lifting, and the opposite setting of two groups battery clamping plate assemblies is provided on rotary table, and the pressure plate mechanism, encapsulation mechanism and cutter mechanism are sequentially set from top to bottom on upper seal cavity, and vacuum pump is connected with upper seal cavity through pipeline. This inverted rotary table air extraction sealing machine has the advantages that the structure is compact, occupies small, and the use convenience is good, can effectively improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery production equipment, specifically to an inverted rotary vacuum sealing machine. Background Technology

[0002] Soft-pack lithium batteries are the third generation of power lithium batteries developed from existing steel-cased, aluminum-cased, and plastic-cased batteries. They are widely used in electric bicycles, power tools, emergency lighting, portable power banks, and many other fields due to their advantages such as being lighter and thinner, having better safety performance, higher energy density, and being environmentally friendly and pollution-free. The production process of soft-pack lithium batteries involves injecting electrolyte into an air bag, followed by sealing the air bag to complete the packaging process. However, existing packaging equipment is space-consuming, cumbersome, and has certain limitations. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide an inverted rotary vacuum sealing machine that is compact in structure, occupies little space, is easy to use, and can effectively improve production efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An inverted rotary vacuum sealing machine includes a frame and a vacuum pump. The frame is equipped with a turntable and a rotary drive mechanism for driving the turntable to rotate. An operating table is provided on one side of the turntable, and an upper sealing cavity, a first lifting drive mechanism for driving the upper sealing cavity to move up and down, a lower sealing cavity, and a second lifting drive mechanism for driving the lower sealing cavity to move up and down are provided on the other side of the turntable. Two sets of battery clamping plate assemblies are arranged opposite each other on the turntable. The upper sealing cavity is provided with a pressure plate mechanism, a sealing mechanism, and a cutting mechanism from top to bottom. The vacuum pump is connected to the upper sealing cavity through a pipe.

[0005] As a further improvement to the above technical solution: The battery clamp assembly includes a fixed clamp and a movable clamp hinged to the fixed clamp. The bottom of the fixed clamp is provided with two sets of pillars, and clearance holes are formed between the two sets of pillars for the encapsulation mechanism and the cutting mechanism to pass through.

[0006] The pressure plate mechanism includes two sets of first telescopic cylinders arranged opposite each other. The piston rod of one set of first telescopic cylinders passes through the upper sealed cavity and abuts against the fixed clamping plate. The piston rod of the other set of first telescopic cylinders passes through the upper sealed cavity and abuts against the movable clamping plate.

[0007] The encapsulation mechanism includes two sets of opposing end caps and a second telescopic cylinder for driving the end caps closer to or further away from each other.

[0008] The cutting mechanism includes two sets of opposing cutters and a third telescopic cylinder for driving the cutters closer to or further apart from each other.

[0009] The frame is provided with several sets of first guide rods and several sets of second guide rods. The upper sealing cavity is slidably connected to the first guide rods through a linear bearing seat, and the lower sealing cavity is slidably connected to the second guide rods through a linear bearing seat.

[0010] The bottom of the upper sealing cavity is provided with a first sealing strip, the top of the lower sealing cavity is provided with a second sealing strip, and the turntable has a communication port corresponding to the two sets of battery clamping plate assemblies.

[0011] Compared with the prior art, the advantages of this utility model are: When the inverted turntable vacuum sealing machine of this utility model is working, the battery cell is first placed upside down into the battery clamping plate assembly. The rotary drive mechanism drives the turntable to rotate 180° to the sealing position. Then, the first lifting drive mechanism drives the upper sealing cavity to descend, and the second lifting drive mechanism drives the lower sealing cavity to rise and engage with the battery clamping plate assembly. The cutting mechanism is activated to cut off the first seal of the battery cell's air bag. The vacuum pump is activated to extract the gas in the upper sealing cavity. At the same time, the pressure plate mechanism is activated to press the battery clamping plate assembly and squeeze out the residual air inside the battery cell. Then, the sealing mechanism is activated to heat seal the air bag opening, forming a second seal and completely sealing the battery cell. After completion, the upper sealing cavity is evacuated, and all components return to their initial working positions. The rotary drive mechanism drives the turntable to rotate 180° to the operating table. The operator takes out the battery cell that has been sealed twice. While one battery clamping plate assembly is being sealed, another battery clamping plate assembly can be loaded and unloaded. It has the advantages of compact structure, small size, and convenient use, and can effectively improve production efficiency. Attached Figure Description

[0012] Figure 1 This is a side view of the inverted rotary vacuum sealing machine.

[0013] Figure 2 This is a front view schematic diagram of an inverted rotary vacuum sealing machine.

[0014] Figure 3 This is a schematic diagram of the battery clamp assembly.

[0015] Figure 4 This is a schematic diagram of the upper sealed cavity and the turntable.

[0016] Legend: 1. Frame; 2. Turntable; 3. Rotary drive mechanism; 4. Operating table; 5. Upper sealing cavity; 6. First lifting drive mechanism; 7. Lower sealing cavity; 8. Second lifting drive mechanism; 9. Battery clamping plate assembly; 901. Fixed clamping plate; 902. Movable clamping plate; 903. Support column; 904. Clearance hole; 10. Pressure plate mechanism; 11. Encapsulation mechanism; 1101. End cap; 1102. Second telescopic cylinder; 12. Cutting mechanism; 1201. Cutting blade; 1202. Third telescopic cylinder; 13. Vacuum pump; 14. First guide rod; 15. Second guide rod. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1 to 4 As shown, the inverted turntable vacuum sealing machine of this embodiment includes a frame 1 and a vacuum pump 13. The frame 1 is provided with a turntable 2 and a rotary drive mechanism 3 for driving the turntable 2 to rotate. An operating table 4 is provided on one side of the turntable 2, and an upper sealing cavity 5, a first lifting drive mechanism 6 for driving the upper sealing cavity 5 to move up and down, a lower sealing cavity 7, and a second lifting drive mechanism 8 for driving the lower sealing cavity 7 to move up and down are provided on the other side of the turntable 2. Two sets of battery clamping plate assemblies 9 are arranged opposite each other on the turntable 2. The upper sealing cavity 5 is provided with a pressure plate mechanism 10, a sealing mechanism 11, and a cutting mechanism 12 from top to bottom. The vacuum pump 13 is connected to the upper sealing cavity 5 through a pipe. When the inverted rotary vacuum sealing machine is working, the battery cell is first placed upside down (air bag side down) into the battery clamp assembly 9. The rotary drive mechanism 3 drives the rotary table 2 to rotate 180° to the sealing position. Then, the first lifting drive mechanism 6 drives the upper sealing cavity 5 to descend, and the second lifting drive mechanism 8 drives the lower sealing cavity 7 to rise and engage with the battery clamp assembly 9. The cutting mechanism 12 is activated to cut off the first seal of the battery cell air bag. The vacuum pump 13 is activated to extract the gas in the upper sealing cavity 5. At the same time, the pressure plate mechanism 10 is activated to press the battery clamp. Component 9 squeezes out the residual air inside the battery cell, and then the sealing mechanism 11 starts the heat-sealing air bag opening to form a second seal and completely seal the battery cell. After completion, the upper sealing cavity 5 is emptied of vacuum, and each component returns to its initial working position. The rotation drive mechanism 3 drives the turntable 2 to rotate 180° to the operating table 4. The operator takes out the secondary-sealed battery cell. While one battery clamp assembly 9 is being sealed, another battery clamp assembly 9 can be loaded and unloaded. It has the advantages of compact structure, small size, and convenient use, and can effectively improve production efficiency.

[0019] It should be noted that the inverted turntable vacuum sealing machine of this utility model is mainly used for the production of semi-solid soft-pack lithium batteries. The electrolyte of semi-solid soft-pack lithium batteries is a liquid electrolyte with added solid components, such as oxides, polymers, gelling agents, or solid electrolyte powder, which makes it change from a free-flowing liquid into a non-flowing or poorly fluid gel / paste. Therefore, even if the cell is inverted, electrolyte leakage will not occur.

[0020] In this embodiment, the rotary drive mechanism 3 can be a commonly available component with rotary drive function, such as a servo motor. The first lifting drive mechanism 6 and the second lifting drive mechanism 8 can be commonly available components with reciprocating movement function, such as telescopic cylinders. The specific structural form of the rotary drive mechanism 3, the first lifting drive mechanism 6 and the second lifting drive mechanism 8 is not limited here, as long as the action requirements can be met.

[0021] Preferably, the battery clamp assembly 9 includes a fixed clamp 901 and a movable clamp 902 hinged to the fixed clamp 901. The bottom of the fixed clamp 901 is provided with two sets of support columns 903, and the two sets of support columns 903 are spaced apart to form clearance holes 904 for the encapsulation mechanism 11 and the cutting mechanism 12 to pass through.

[0022] Preferably, the pressure plate mechanism 10 includes two sets of first telescopic cylinders arranged opposite each other. The piston rod of one set of first telescopic cylinders passes through the upper sealing cavity 5 and abuts against the fixed clamping plate 901, while the piston rod of the other set of first telescopic cylinders passes through the upper sealing cavity 5 and abuts against the movable clamping plate 902.

[0023] Preferably, the sealing mechanism 11 includes two sets of opposing end caps 1101 and a second telescopic cylinder 1102 for driving the end caps 1101 closer to or further apart from each other. In other embodiments, components with reciprocating movement functions such as electric cylinders, hydraulic cylinders, and rack and pinion mechanisms can also be used to drive the end caps 1101 to reciprocate in the horizontal direction, and are not limited to this embodiment.

[0024] Preferably, the cutting mechanism 12 includes two sets of opposing cutters 1201 and a third telescopic cylinder 1202 for driving the cutters 1201 closer to or further apart from each other. In other embodiments, components with reciprocating movement functions such as electric cylinders, hydraulic cylinders, and rack and pinion mechanisms can also be used to drive the cutters 1201 to reciprocate in the horizontal direction, and are not limited to this embodiment.

[0025] It should be noted that the above-mentioned cell inversion refers to the soft-pack battery being placed with the air bag side facing down between the fixed clamping plate 901 and the movable clamping plate 902. The first sealing of the air bag is located at the clearance hole 904. The first lifting drive mechanism 6 drives the upper sealing cavity 5 to descend, so the pressure plate mechanism 10 is positioned exactly between the fixed clamping plate 901 and the movable clamping plate 902. The sealing mechanism 11 and the cutting mechanism 12 are positioned exactly at the clearance hole 904. At this time, the third telescopic cylinder 1202 drives the cutting blade 120... 1. The first seal of the cell air bag is cut off by bringing the two sides closer together. Vacuum pump 13 is started to extract the gas in the upper sealing cavity 5. At the same time, the piston rod of one set of first telescopic cylinders abuts against the fixed clamping plate 901, and the piston rod of another set of first telescopic cylinders abuts against the movable clamping plate 902, thereby pressing the battery clamping plate assembly 9 and squeezing out the residual air inside the cell. Then, the second telescopic cylinder 1102 drives the end caps 1101 to come closer together and heat seal the air bag opening, thereby forming a second seal and completely sealing the cell.

[0026] Preferably, the frame 1 is provided with several sets of first guide rods 14 and several sets of second guide rods 15. The upper sealing cavity 5 is slidably connected to the first guide rod 14 through a linear bearing seat, and the lower sealing cavity 7 is slidably connected to the second guide rod 15 through a linear bearing seat. This can effectively improve the operational stability of the upper sealing cavity 5 and the lower sealing cavity 7 during lifting and lowering, and improve the sealing accuracy.

[0027] Preferably, a first sealing strip is provided at the bottom of the upper sealing cavity 5, and a second sealing strip is provided at the top of the lower sealing cavity 7. A communication port is provided on the turntable 2 corresponding to the two sets of battery clamping plate assemblies 9. In this embodiment, when the upper sealing cavity 5 and the lower sealing cavity 7 are engaged with the battery clamping plate assembly 9, the upper sealing cavity 5 and the lower sealing cavity 7 are connected through the communication port. When the first sealing strip at the bottom of the upper sealing cavity 5 abuts against the turntable 2, and the second sealing strip at the top of the lower sealing cavity 7 abuts against the turntable 2, airtightness can be ensured, improving the vacuum sealing effect of the battery cell.

[0028] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An inverted rotary vacuum sealing machine, characterized in that, The device includes a frame (1) and a vacuum pump (13). The frame (1) is provided with a turntable (2) and a rotary drive mechanism (3) for driving the turntable (2) to rotate. An operating table (4) is provided on one side of the turntable (2). On the other side of the turntable (2), there is an upper sealing cavity (5), a first lifting drive mechanism (6) for driving the upper sealing cavity (5) to rise and fall, a lower sealing cavity (7), and a second lifting drive mechanism (8) for driving the lower sealing cavity (7) to rise and fall. Two sets of battery clamping plate assemblies (9) are arranged opposite each other on the turntable (2). The upper sealing cavity (5) is provided with a pressure plate mechanism (10), a sealing mechanism (11), and a cutting mechanism (12) from top to bottom. The vacuum pump (13) is connected to the upper sealing cavity (5) through a pipe.

2. The inverted rotary vacuum sealing machine according to claim 1, characterized in that, The battery clamp assembly (9) includes a fixed clamp (901) and a movable clamp (902) hinged to the fixed clamp (901). The bottom of the fixed clamp (901) is provided with two sets of support pillars (903), and the two sets of support pillars (903) are spaced apart to form clearance holes (904) for the encapsulation mechanism (11) and the cutting mechanism (12) to pass through.

3. The inverted rotary vacuum sealing machine according to claim 2, characterized in that, The pressure plate mechanism (10) includes two sets of first telescopic cylinders arranged opposite each other. The piston rod of one set of first telescopic cylinders passes through the upper sealing cavity (5) and abuts against the fixed clamping plate (901). The piston rod of the other set of first telescopic cylinders passes through the upper sealing cavity (5) and abuts against the movable clamping plate (902).

4. The inverted rotary vacuum sealing machine according to claim 3, characterized in that, The encapsulation mechanism (11) includes two sets of opposing end caps (1101) and a second telescopic cylinder (1102) for driving the end caps (1101) to move closer or further apart from each other.

5. The inverted rotary vacuum sealing machine according to claim 4, characterized in that, The cutting mechanism (12) includes two sets of opposing cutters (1201) and a third telescopic cylinder (1202) for driving the cutters (1201) to move closer or further apart from each other.

6. The inverted rotary vacuum sealing machine according to claim 5, characterized in that, The frame (1) is provided with several sets of first guide rods (14) and several sets of second guide rods (15). The upper sealing cavity (5) is slidably connected to the first guide rod (14) through a linear bearing seat, and the lower sealing cavity (7) is slidably connected to the second guide rod (15) through a linear bearing seat.

7. The inverted rotary vacuum sealing machine according to claim 6, characterized in that, The upper sealing cavity (5) is provided with a first sealing strip at the bottom, and the lower sealing cavity (7) is provided with a second sealing strip at the top. The turntable (2) has a communication port corresponding to the two sets of battery clamp assemblies (9).

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