Simple cylindrical battery sealing equipment

Abstract

The invention relates to the technical field of battery sealing, in particular to simple cylindrical battery sealing equipment which comprises a machine base, a guide rod frame, a top plate, a lifting plate, a lifting driving mechanism, a fixed clamp, a movable clamp, a translation driving mechanism, a sliding base, two limiting pieces, a first sealing mold and a second sealing mold. A first sealing waiting position, a sealing position and a second sealing waiting position are arranged between the two limiting pieces, and the movable clamp and the fixed clamp are arranged corresponding to the sealing position after die assembly. The first sealing mold and the second sealing mold alternately move to the sealing position to achieve secondary sealing of the cylindrical battery, and in the process that the sliding base drives the first sealing mold and the second sealing mold to reciprocate, the sliding base is blocked and limited through the limiting piece, and the first magnet magnetically attracts the sliding base; the sliding seat can accurately move in place and is good in stability, so that the position precision and stability of the first sealing mold and the second sealing mold during sealing are ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of battery sealing, and in particular to a simple cylindrical battery sealing device. Background Art

[0002] Cylindrical batteries are widely used in consumer electronics, electric vehicles and energy storage systems. Their sealing process directly determines the sealing performance, safety and lifespan of the batteries. In the laboratory, sealing tests are carried out on cylindrical batteries using a sealing machine. In the existing patents, a Chinese patent document with the application number 201820732689.0 discloses a cylindrical battery sealing machine, which includes a machine body, precision guide columns, a middle slide plate, a battery fixing mechanism, a fixing plate and a sealing die. The machine body includes a housing, an oil pressure gauge, a pressure relief handle valve and a pressure boost handle valve arranged on the side of the housing, and an oil pressure jack arranged inside the housing. The precision guide columns are vertically fixed inside the housing and their tops are exposed outside the housing. The middle slide plate is slidably sleeved on the precision guide columns and is arranged at the upper part of the housing. The battery fixing mechanism is fixed on the upper surface of the middle slide plate. The fixing plate is fixed at the top of the precision guide columns. The sealing die is detachably installed at the bottom of the fixing plate. The sealing die includes a first sealing die and a second sealing die. Although this patent document discloses the first sealing die and the second sealing die, it does not disclose how the first sealing die and the second sealing die seal the cylindrical battery in sequence. Since the position where the battery fixing mechanism fixes the cylindrical battery is fixed and the cylindrical battery can only move up and down with the middle slide plate, those skilled in the art do not know how the first sealing die and the second sealing die seal the cylindrical battery in sequence. Summary of the Invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a simple cylindrical battery sealing device.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A simple cylindrical battery sealing device, which includes a machine base, a guide rod frame installed on the machine base, a top plate installed on the top of the guide rod frame, a lifting plate arranged above the machine base and sliding up and down with the guide rod frame, a lifting drive mechanism installed in the machine base and used to drive the lifting of the lifting plate, a fixed fixture installed on the top surface of the lifting plate, a movable fixture horizontally slidably connected to the top surface of the lifting plate and used to close the mold with the fixed fixture, a translation drive mechanism used to drive the movable fixture to approach or move away from the fixed fixture, a sliding seat horizontally slidably connected to the bottom surface of the top plate, two limit pieces respectively installed on both sides of the top plate, and a first sealing mold and a second sealing mold arranged side by side on the sliding seat. The sliding seat is located between the two limit pieces, and first magnets are installed on both limit pieces. The first magnets are used to magnetically attract the sliding seat. A first sealing waiting position, a sealing position, and a second sealing waiting position are horizontally arranged between the two limit pieces. After the movable fixture and the fixed fixture are closed, they are correspondingly arranged at the sealing position. The first sealing mold and the second sealing mold alternately move to the sealing position.

[0006] Further, semi-circular clamping grooves are provided on the sides of the fixed fixture and the movable fixture that are close to each other. The semi-circular clamping grooves are used to accommodate cylindrical batteries.

[0007] Further, a second magnet is embedded in the inner wall of the semi-circular clamping groove of the fixed fixture. The second magnet is used to magnetize the cylindrical battery.

[0008] Further, semi-circular positioning blocks protrude from the top surfaces of the fixed fixture and the movable fixture. The semi-circular positioning blocks are arranged around the semi-circular clamping grooves. Semi-circular clamping strips protrude from the inner arc surfaces of the semi-circular positioning blocks. The semi-circular clamping strips are used to be clamped with the top card slots of the cylindrical batteries.

[0009] Further, the second sealing mold includes a second sealing seat, a sleeve cover, a second elastic member, a sealing mold core, and a sealing forming guide sleeve. The second sealing seat is arranged on the sliding seat. A sliding cavity is recessed on the bottom surface of the second sealing seat. The sealing mold core is installed in the second sealing seat and located in the sliding cavity. The distance is set between the outer side wall of the sealing mold core and the inner wall of the sliding cavity. The sleeve cover is sleeved on the bottom of the second sealing seat. The sleeve cover is provided with a second positioning hole. The sealing forming guide sleeve is slidably sleeved outside the sealing mold core and is slidably connected to the inner wall of the second positioning hole. A limiting plate is arranged on the circumference of the sealing forming guide sleeve. The limiting plate is slidably connected to the inner side wall of the sliding cavity. The second elastic member is located in the sliding cavity. The two ends of the second elastic member are elastically abutted against the top wall of the sliding cavity and the top surface of the sealing forming guide sleeve respectively. A ring-shaped sealing forming groove is recessed on the edge of the bottom end surface of the sealing mold core; when the fixed fixture and the movable fixture are closed, the two semi-circular positioning blocks enclose a positioning column, and the positioning column is in concave-convex fit with the second positioning hole; initially, the second elastic member is in an extended state, the limiting plate abuts against the inner bottom wall of the sleeve cover, and the bottom end surface of the sealing forming guide sleeve extends out of the second positioning hole.

[0010] Further, the second sealing seat is detachably connected to the sealing die core via a locking bolt. A first jack is provided on the circumferential side of the second sealing seat and is communicated with the sliding cavity. A second jack coaxial with the first jack is radially recessed in the sealing die core.

[0011] Further, the cover is threadedly connected to the bottom of the second sealing seat, and a second screwing hole is provided on the circumferential side wall of the cover.

[0012] Further, a receiving hole is recessed in the bottom end surface of the sealing die core, and a sealing forming groove is arranged around the receiving hole.

[0013] Further, the first sealing die includes a cover plate, a first sealing seat, a collar, a first elastic member, and a pressing block. The cover plate is installed on the sliding seat, and the first sealing seat is installed on the cover plate. The first sealing seat is coaxially communicated with an activity hole, a sliding hole, and a first sealing hole from top to bottom. The cover plate covers the top port of the activity hole. A limiting ring is provided on the circumferential side of the pressing block, and the limiting ring is slidably connected to the inner wall of the activity hole. The first elastic member is located in the activity hole, and the two ends of the first elastic member are elastically abutted against the cover plate and the pressing block respectively. The pressing block is slidably connected to the inner wall of the first slider. The collar is sleeved on the bottom of the first sealing seat, and a first positioning hole is formed by surrounding the bottom surface of the first sealing seat by the inner wall of the collar; when the fixed fixture and the movable fixture are closed, the two semi-circular positioning blocks surround a positioning column, and the positioning column is in concave-convex fit with the first positioning hole; initially, the first elastic member is in an extended state, the bottom surface of the limiting ring abuts against the bottom wall of the activity hole, and the bottom end of the pressing block penetrates through the first sealing hole and extends into the first positioning hole.

[0014] Further, a guide post is convexly provided on the top surface of the pressing block, the bottom of the first elastic member is sleeved outside the guide post, and a fixing hole is recessed in the bottom surface of the top plate, and the top of the first elastic member extends into the fixing hole.

[0015] Advantages of the present invention: The present invention can realize the automatic opening and closing of the fixed fixture and the movable fixture, with high opening and closing efficiency, reducing the labor intensity of operators. The first sealing die and the second sealing die are alternately moved to the sealing position to realize the secondary sealing of the cylindrical battery. During the process of the sliding seat driving the first sealing die and the second sealing die to reciprocate, the sliding seat is blocked and limited by the limiting member and the first magnet magnetically attracts the sliding seat, so as to ensure that the sliding seat can accurately move in place and has good stability, thereby ensuring the position accuracy and stability of the first sealing die and the second sealing die during sealing, and greatly improving the accuracy and quality of sealing the cylindrical battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 is a cross-sectional view of the present invention.

[0018] Figure 3A cross-sectional view of the top plate, sliding seat, limiting member, first magnet, first sealing die, and second sealing die of the present invention.

[0019] Figure 4 A three-dimensional structural schematic diagram of the fixed fixture, movable fixture, and translation driving mechanism of the present invention.

[0020] Explanation of reference numerals in the drawings:

[0021] 1. Machine base; 2. Guide rod frame; 3. Top plate; 4. Lifting plate; 5. Lifting driving mechanism; 6. Fixed fixture; 7. Movable fixture; 8. Translation driving mechanism; 9. Sliding seat; 10. Limiting member; 11. First sealing die; 12. Second sealing die; 13. First magnet; 14. Semi-circular clamping groove; 15. Second magnet; 16. Semi-circular positioning block; 17. Semi-circular clamping strip; 18. Second sealing seat; 19. Sleeve cover; 20. Second elastic member; 21. Sealing die core; 22. Sealing forming guide sleeve; 23. Sliding cavity; 24. Second positioning hole; 25. Limiting plate; 26. Sealing forming groove; 27. Locking bolt; 31. Accommodating hole; 32. Cover plate; 33. First sealing seat; 34. Sleeve ring; 35. First elastic member; 36. Pressing block; 37. Movable hole; 38. Sliding hole; 39. First sealing hole; 40. Limiting ring; 41. First positioning hole; 42. Guide post; 43. Fixed hole; 44. Driver. Detailed implementation manners

[0022] For the convenience of understanding by those skilled in the art, the present invention will be further described below in conjunction with embodiments and the drawings. The content mentioned in the implementation manners does not limit the present invention.

[0023] As Figures 1 to 4 shown, a simple cylindrical battery sealing device mainly used for experiments provided by the present invention includes a machine base 1, a guide rod frame 2 installed on the machine base 1, a top plate 3 installed on the top of the guide rod frame 2, a lifting plate 4 arranged above the machine base 1 and sliding up and down with the guide rod frame 2, a lifting driving mechanism 5 installed in the machine base 1 and used to drive the lifting of the lifting plate 4, a fixed fixture 6 installed on the top surface of the lifting plate 4, a movable fixture 7 horizontally slidably connected to the top surface of the lifting plate 4 and used to close the mold with the fixed fixture 6, a translation driving mechanism 8 used to drive the movable fixture 7 to approach or move away from the fixed fixture 6, a sliding seat 9 horizontally slidably connected to the bottom surface of the top plate 3, two limiting members 10 respectively installed on both sides of the top plate 3, and a first sealing die 11 and a second sealing die 12 arranged side by side on the sliding seat 9. The sliding seat 9 is located between the two limiting members 10. First magnets 13 are installed on both limiting members 10, and the first magnets 13 are used to magnetically attract the sliding seat 9. A first sealing waiting position, a sealing position, and a second sealing waiting position are horizontally arranged between the two limiting members 10. After the movable fixture 7 and the fixed fixture 6 are closed, they are correspondingly arranged with the sealing position. The first sealing die 11 and the second sealing die 12 alternately move to the sealing position.

[0024] In practical applications, the fixed fixture 6 is always located below the sealing position. The translation driving mechanism 8 drives the movable fixture 7 away from the fixed fixture 6, causing the movable fixture 7 and the fixed fixture 6 to open the mold (open). At this time, the cylindrical battery to be sealed is placed between the fixed fixture 6 and the movable fixture 7 after the mold is opened. Then, the translation driving mechanism 8 drives the movable fixture 7 to approach the fixed fixture 6 until the movable fixture 7 and the fixed fixture 6 close the mold (close) and clamp the cylindrical battery to be sealed. The driving slide 9 is translated, so that the first sealing die 11 moves to the sealing position, and the second sealing die 12 moves to the second sealing waiting position. The first sealing die 11 corresponds to the cylindrical battery to be sealed up and down. A limiting member 10 blocks and limits the slide 9, and the first magnet 13 on the limiting member 10 magnetically attracts one end of the slide 9 to ensure that the slide 9 moves in place, thereby ensuring the position accuracy and stability of the slide 9, so that the first sealing die 11 and the cylindrical battery to be sealed are accurately aligned. Then, the lifting driving mechanism 5 drives the lifting plate 4 together with the fixed fixture 6 and the movable fixture 7 after the mold is closed to rise, so that the cylindrical battery to be sealed approaches the first sealing die 11 until the first sealing die 11 makes the first sealing bend on the edge to be sealed of the cylindrical battery. Then, the lifting driving mechanism 5 drives the lifting plate 4 together with the fixed fixture 6 and the movable fixture 7 after the mold is closed to descend. Then, the slide 9 is driven to move, so that the first sealing die 11 moves from the sealing position to the first sealing waiting position, and the second sealing die 12 moves from the second sealing waiting position to the sealing position until another limiting member 10 blocks and limits the slide 9, and the first magnet 13 on the limiting member 10 magnetically attracts the other end of the slide 9 to ensure that the slide 9 moves in place. At this time, the second sealing die 12 and the cylindrical battery after the first sealing are accurately aligned. Then, the lifting driving mechanism 5 drives the lifting plate 4 together with the fixed fixture 6 and the movable fixture 7 after the mold is closed to rise, so that the cylindrical battery after the first sealing approaches the second sealing die 12 until the second sealing die 12 makes the second sealing bend on the cylindrical battery, so that the cylindrical battery completes the sealing process. Finally, the lifting driving mechanism 5 drives the lifting plate 4 together with the fixed fixture 6 and the movable fixture 7 after the mold is closed to descend and reset. The translation driving mechanism 8 drives the movable fixture 7 to move away from the fixed fixture 6, causing the movable fixture 7 and the fixed fixture 6 to open the mold (open). At this time, the sealed cylindrical battery can be taken away, and the cylindrical battery to be sealed can be placed between the fixed fixture 6 and the movable fixture 7.The present invention can realize the automatic mold opening and closing of the fixed fixture 6 and the movable fixture 7, with high mold opening and closing efficiency, reducing the labor intensity of the operator. The first sealing die 11 and the second sealing die 12 alternately move to the sealing position to realize the secondary sealing of the cylindrical battery. During the process of the slide seat 9 driving the first sealing die 11 and the second sealing die 12 to reciprocate, the slide seat 9 is blocked and limited by the limiting member 10 and magnetically attracted by the first magnet 13, so as to ensure that the slide seat 9 can accurately move into place and has good stability, thus ensuring the position accuracy and stability of the first sealing die 11 and the second sealing die 12 during sealing, greatly improving the accuracy and quality of sealing the cylindrical battery; the present invention is particularly suitable for laboratories.

[0025] Specifically, a driver 44 is installed on the side wall of the slide seat 9. In practical applications, the driver 44 drives the slide seat 9 to reciprocate, so that the first sealing die 11 and the second sealing die 12 can alternately move to the sealing position. Of course, the driver 44 can adopt an electric or pneumatic driving mechanism to achieve automatic control, or an operating handle to achieve manual control.

[0026] Specifically, the lifting driving mechanism 5 can adopt a cylinder, an oil cylinder or a screw module, which will not be elaborated here.

[0027] In this embodiment, semi-circular clamping grooves 14 are provided on the sides of the fixed fixture 6 and the movable fixture 7 close to each other, and the semi-circular clamping grooves 14 are used to accommodate the cylindrical battery. In practical applications, when the fixed fixture 6 and the movable fixture 7 are closed, the cylindrical battery is clamped in the semi-circular clamping grooves 14 of the fixed fixture 6 and the movable fixture 7, so as to improve the stability of clamping the cylindrical battery and will not damage the cylindrical battery.

[0028] In this embodiment, a second magnet 15 is embedded in the inner wall of the semi-circular clamping groove 14 of the fixed fixture 6, and the second magnet 15 is used to magnetize the cylindrical battery. In practical applications, after the fixed fixture 6 and the movable fixture 7 are opened, the sealed cylindrical battery is magnetically attracted in the semi-circular clamping groove 14 of the fixed fixture 6, ensuring the stability of the cylindrical battery in the semi-circular clamping groove 14, facilitating the operator to take away the sealed cylindrical battery. Then, the operator places the cylindrical battery to be sealed in the semi-circular clamping groove 14 of the fixed fixture 6, and the second magnet 15 magnetically attracts the cylindrical battery, so that the cylindrical battery is stably placed in the semi-circular clamping groove 14 of the fixed fixture 6 until the movable fixture 7 and the fixed fixture 6 are closed to clamp the cylindrical battery.

[0029] In this embodiment, semi-circular positioning blocks 16 are convexly provided on the top surfaces of the fixed fixture 6 and the movable fixture 7. The semi-circular positioning blocks 16 are arranged around the semi-circular clamping groove 14. A semi-circular clamping strip 17 is convexly provided on the inner arc surface of the semi-circular positioning block 16. The semi-circular clamping strip 17 is used for clamping with the top clamping groove of the cylindrical battery. When the cylindrical battery is placed in the semi-circular clamping groove 14 of the fixed fixture 6, the semi-circular clamping strip 17 is clamped with the top clamping groove of the cylindrical battery, improving the stability and position accuracy of the cylindrical battery in the semi-circular clamping groove 14 of the fixed fixture 6. In addition, by fixing the cylindrical battery in a magnetic adsorption and clamping manner, the stability and position accuracy of the cylindrical battery in the semi-circular clamping groove 14 of the fixed fixture 6 are further improved.

[0030] In this embodiment, the second sealing die 12 includes a second sealing base 18, a cover 19, a second elastic member 20, a sealing die core 21 and a sealing forming guide sleeve 22. The second sealing base 18 is arranged on the sliding seat 9. A sliding cavity 23 is concavely provided on the bottom surface of the second sealing base 18. The sealing die core 21 is installed in the second sealing base 18 and is located in the sliding cavity 23. A spacing is provided between the outer side wall of the sealing die core 21 and the inner wall of the sliding cavity 23. The cover 19 is sleeved on the bottom of the second sealing base 18. The cover 19 is provided with a second positioning hole 24. The sealing forming guide sleeve 22 is slidably sleeved outside the sealing die core 21. The sealing forming guide sleeve 22 is slidably connected with the inner wall of the second positioning hole 24. A limiting plate 25 is provided on the circumferential side of the sealing forming guide sleeve 22. The limiting plate 25 is slidably connected with the inner side wall of the sliding cavity 23. The second elastic member 20 is located in the sliding cavity 23. The two ends of the second elastic member 20 are elastically abutted against the top wall of the sliding cavity 23 and the top surface of the sealing forming guide sleeve 22 respectively. A ring-shaped sealing forming groove 26 is concavely provided on the edge of the bottom end surface of the sealing die core 21; when the fixed fixture 6 and the movable fixture 7 are closed, the two semi-circular positioning blocks 16 enclose a positioning column, and the positioning column is in concave-convex fit with the second positioning hole 24; initially, the second elastic member 20 is in an extended state, the limiting plate 25 abuts against the inner bottom wall of the cover 19, and the bottom end surface of the sealing forming guide sleeve 22 extends out of the second positioning hole 24.

[0031] In actual application, when the second sealing mold 12 is located at the sealing position and corresponds to the cylindrical battery after the first sealing, the lifting drive mechanism 5 drives the lifting plate 4 to rise together with the movable clamp 7 and the fixed clamp 6 after the mold is closed and the cylindrical battery after the first sealing, so that the positioning column formed by the movable clamp 7 and the fixed clamp 6 after the mold is closed will first contact with the bottom end surface of the sealing molding guide sleeve 22, so that the sealing molding guide sleeve 22 moves upward and compresses the second elastic member 20, and the positioning column moves upward along the second positioning hole 24, so that The sealing molding groove 26 of the sealing mold core 21 performs a second sealing bend on the sealing edge of the cylindrical battery after the first sealing. When the sealing mold core 21 performs a second sealing bend on the sealing edge of the cylindrical battery and the sealing molding guide sleeve 22 moves upward, the inner side wall of the sealing molding guide sleeve 22 blocks and limits the outer side of the sealing edge of the cylindrical battery to constrain the sealing edge of the cylindrical battery to only perform a second sealing bend along the sealing bending arc of the sealing molding groove 26, thereby ensuring the sealing quality of the cylindrical battery.

[0032] In this embodiment, the second sealing seat 18 is detachably connected to the sealing core 21 via a locking bolt 27. A first plug hole connected to the sliding cavity 23 is provided on the peripheral side of the second sealing seat 18, and a second plug hole coaxial with the first plug hole is provided in the radial recess of the sealing core 21. When disassembling the sealing core 21, first insert a disassembly tool such as a plug rod into the first plug hole and the second plug hole to limit the sealing core 21 so that the sealing core 21 cannot rotate relative to the second sealing seat 18. At this time, the locking bolt 27 is screwed with a screwdriver to prevent the sealing core 21 from rotating synchronously with the locking bolt 27, so as to ensure that the locking bolt 27 can firmly lock the second sealing seat 18 and the sealing core 21, or easily unlock the second sealing seat 18 and the sealing core 21.

[0033] In this embodiment, the cover 19 is threadedly connected to the bottom of the second sealing seat 18, and a second screw hole is provided on the peripheral side wall of the cover 19. When screwing the cover 19, a disassembly tool such as a plug rod is inserted into the second screw hole, and the cover 19 is screwed by the disassembly tool, so that the cover 19 is threadedly rotated relative to the second sealing seat 18, thereby realizing the disassembly and assembly of the cover 19 and the second sealing seat 18; with this structural design, the connection between the cover 19 and the second sealing seat 18 is firm, and the disassembly and assembly are convenient.

[0034] In this embodiment, the bottom end surface of the sealing mold core 21 is concavely provided with a receiving hole 31, and the sealing forming groove 26 is arranged around the receiving hole 31. When the second sealing mold 12 performs the second sealing on the cylindrical battery, the receiving hole 31 provides an escape space for the tab head of the cylindrical battery to prevent the tab head of the cylindrical battery from being deformed / damaged by compression.

[0035] Specifically, the second elastic member 20 is a spring, and the second elastic member 20 is sleeved outside the sealing die core 21. In practical applications, the sealing die core 21 guides and positions the second elastic member 20, improving the working stability and position accuracy of the second elastic member 20, and facilitating the disassembly and assembly of the second elastic member 20.

[0036] In this embodiment, the first sealing die 11 includes a cover plate 32, a first sealing seat 33, a collar 34, a first elastic member 35, and a pressing block 36. The cover plate 32 is installed on the sliding seat 9, the first sealing seat 33 is installed on the cover plate 32. The first sealing seat 33 is coaxially and communicatively provided with a moving hole 37, a sliding hole 38, and a first sealing hole 39 from top to bottom. The cover plate 32 covers the top port of the moving hole 37. A limiting ring 40 is provided on the periphery of the pressing block 36, and the limiting ring 40 is slidably connected to the inner wall of the moving hole 37. The first elastic member 35 is located in the moving hole 37, and both ends of the first elastic member 35 are elastically abutted against the cover plate 32 and the pressing block 36 respectively. The pressing block 36 is slidably connected to the inner wall of the first slider. The collar 34 is sleeved on the bottom of the first sealing seat 33, and the inner wall of the collar 34 and the bottom surface of the first sealing seat 33 enclose a first positioning hole 41. When the fixed fixture 6 and the moving fixture 7 are closed, the two semi-circular positioning blocks 16 enclose a positioning post, and the positioning post is in concave-convex fit with the first positioning hole 41. Initially, the first elastic member 35 is in an extended state, the bottom surface of the limiting ring 40 abuts against the bottom wall of the moving hole 37, and the bottom end of the pressing block 36 penetrates through the first sealing hole 39 and extends into the first positioning hole 41. Specifically, the second sealing seat 18 is installed on the cover plate 32.

[0037] In practical applications, when the first sealing die 11 is at the sealing position and corresponds to the cylindrical battery to be sealed, the lifting drive mechanism 5 drives the lifting plate 4 to drive the closed moving fixture 7, the fixed fixture 6, and the cylindrical battery to be sealed upward. The positioning post formed by the closed moving fixture 7 and the fixed fixture 6 moves into the first positioning hole 41. The middle part of the top surface of the cylindrical battery abuts against the pressing block 36, causing the pressing block 36 to move upward and compress the first elastic member 35. The pressing block 36 continuously presses the middle part of the top surface of the cylindrical battery until the inner wall of the first sealing hole 39 abuts against the sealing edge of the cylindrical battery for the first sealing bend to achieve the first sealing of the cylindrical battery.

[0038] In this embodiment, a guide post 42 protrudes from the top surface of the pressing block 36. The first elastic member 35 is a spring, and the bottom of the first elastic member 35 is sleeved outside the guide post 42. A fixing hole 43 is recessed on the bottom surface of the top plate 3, and the top of the first elastic member 35 extends into the fixing hole 43. The guide post 42 and the fixing hole 43 play a role in positioning the first elastic member 35, facilitating the disassembly and assembly of the first elastic member 35, improving the position accuracy and stability of the first elastic member 35, and when the first elastic member 35 expands and contracts, the guide post 42 plays a guiding role for the first elastic member 35, improving the working stability of the first elastic member 35.

[0039] Specifically, the collar 34 is threadedly connected to the bottom of the first sealing seat 33, and a first screwing hole is provided on the side wall of the collar 34. When disassembling and assembling the collar 34, a disassembly and assembly tool such as a plug rod is inserted into the first screwing hole, and the collar 34 is screwed by the disassembly and assembly tool, so that the collar 34 rotates threadedly relative to the first sealing seat 33. This structural arrangement not only makes the connection between the collar 34 and the first sealing seat 33 firm, but also facilitates the disassembly and assembly of the two.

[0040] Specifically, the translation driving mechanism 8 includes a translation cylinder. The cylinder body of the translation cylinder is installed on the side wall of the fixed fixture 6, and the piston rod of the translation cylinder is installed on the side wall of the movable fixture 7. In practical applications, the movable fixture 7 and the fixed fixture 6 can be driven to open or close the mold by the telescopic movement of the translation cylinder.

[0041] All the technical features in this embodiment can be freely combined according to actual needs.

[0042] The above embodiments are the preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the technical solution of the present invention is within the protection scope of the present invention.

Claims

1. A simple cylindrical battery sealing device, characterized in that: The invention comprises a machine base (1), a guide rod frame (2) mounted on the machine base (1), a top plate (3) mounted on the top of the guide rod frame (2), a lifting plate (4) arranged above the machine base (1) and lifting and sliding with the guide rod frame (2), a lifting drive mechanism (5) mounted in the machine base (1) and used for driving the lifting plate (4) to lift and lower, a fixed clamp (6) mounted on the top surface of the lifting plate (4), a movable clamp (7) horizontally slidably connected to the top surface of the lifting plate (4) and used for closing the mold with the fixed clamp (6), a translation drive mechanism (8) used for driving the movable clamp (7) to move closer to or away from the fixed clamp (6), and a bottom plate (9) horizontally slidably connected to the top plate (3). The invention relates to a sliding seat (9) having a top plate (3), two limiting members (10) respectively mounted on both sides of the top plate (3), and a first sealing mold (11) and a second sealing mold (12) mounted side by side on the sliding seat (9); the sliding seat (9) is located between the two limiting members (10); the two limiting members (10) are both equipped with a first magnet (13); the first magnet (13) is used to magnetically attract the sliding seat (9); a first sealing waiting position, a sealing position and a second sealing waiting position are horizontally arranged between the two limiting members (10); the movable clamp (7) and the fixed clamp (6) are arranged corresponding to the sealing position after the mold is closed; the first sealing mold (11) and the second sealing mold (12) are alternately moved to the sealing position.

2. A simple cylindrical battery sealing device according to claim 1, characterized in that: A semicircular clamping groove (14) is provided on one side of the fixed clamp (6) and the movable clamp (7) close to each other, and the semicircular clamping groove (14) is used to accommodate the cylindrical battery.

3. A simple cylindrical battery sealing device according to claim 2, characterized in that: A second magnet (15) is embedded in the inner wall of the semicircular clamping groove (14) of the fixing clamp (6), and the second magnet (15) is used for the magnetic cylindrical battery.

4. A simple cylindrical battery sealing device according to claim 1, characterized in that: A semicircular positioning block (16) is convexly provided on the top surface of the fixed clamp (6) and the top surface of the movable clamp (7). The semicircular positioning block (16) is arranged around the semicircular clamping groove (14). A semicircular clamping strip (17) is convexly provided on the inner arc surface of the semicircular positioning block (16). The semicircular clamping strip (17) is used to be clamped with the top clamping groove of the cylindrical battery.

5. A simple cylindrical battery sealing device according to claim 4, characterized in that: The second sealing mold (12) comprises a second sealing seat (18), a cover (19), a second elastic member (20), a sealing mold core (21) and a sealing molding guide sleeve (22). The second sealing seat (18) is arranged on the sliding seat (9). The bottom surface of the second sealing seat (18) is concavely provided with a sliding cavity (23). The sealing mold core (21) is installed on the second sealing seat (18) and is located in the sliding cavity (23). The outer wall of the sealing mold core (21) and the inner wall of the sliding cavity (23) are spaced apart. The cover (19) is sleeved on the bottom of the second sealing seat (18). The cover (19) is provided with a second positioning hole (24). The sealing molding guide sleeve (22) is slidably sleeved outside the sealing mold core (21). The sealing molding guide sleeve (22) is slidably connected to the inner wall of the second positioning hole (24). A limiting plate (25) is arranged on the circumferential side of the sliding cavity (22), the limiting plate (25) is slidably connected to the inner side wall of the sliding cavity (23), the second elastic member (20) is located in the sliding cavity (23), the two ends of the second elastic member (20) are elastically in contact with the top wall of the sliding cavity (23) and the top surface of the sealing forming guide sleeve (22) respectively, and the bottom end surface edge of the sealing mold core (21) is concavely provided with an annular sealing forming groove (26); when the fixed clamp (6) and the movable clamp (7) are molded together, the two semicircular positioning blocks (16) are surrounded to form a positioning column, and the positioning column is concavely matched with the second positioning hole (24); at the start, the second elastic member (20) is in an extended state, the limiting plate (25) is in contact with the inner bottom wall of the sleeve cover (19), and the bottom end surface of the sealing forming guide sleeve (22) extends out of the second positioning hole (24).

6. A simple cylindrical battery sealing device according to claim 5, characterized in that: The second sealing seat (18) is detachably connected to the sealing core mold (21) via a locking bolt (27); a first plug hole communicating with the sliding cavity (23) is provided on the peripheral side of the second sealing seat (18); and a second plug hole coaxial with the first plug hole is provided in a radial recess of the sealing core mold (21).

7. A simple cylindrical battery sealing device according to claim 5, characterized in that: The cover (19) is threadedly connected to the bottom of the second sealing seat (18), and a second screw hole is arranged on the peripheral side wall of the cover (19).

8. The simplified cylindrical battery sealing device according to claim 5, characterized in that: The bottom end surface of the sealing mold core (21) is concavely provided with an accommodating hole (31), and the sealing molding groove (26) is arranged around the accommodating hole (31).

9. The simplified cylindrical battery sealing device according to claim 4, characterized in that: The first sealing mold (11) comprises a cover plate (32), a first sealing seat (33), a sleeve ring (34), a first elastic member (35) and a pressing block (36); the cover plate (32) is mounted on the sliding seat (9); the first sealing seat (33) is mounted on the cover plate (32); the first sealing seat (33) is coaxially connected from top to bottom with a movable hole (37), a sliding hole (38) and a first sealing hole (39); the cover plate (32) covers the top end of the movable hole (37); a limiting ring (40) is arranged on the circumferential side of the pressing block (36); the limiting ring (40) is slidably connected to the inner wall of the movable hole (37); the first elastic member (35) is located in the movable hole (37); two ends of the first elastic member (35) are respectively It elastically contacts the cover plate (32) and the pressure block (36), the pressure block (36) is slidably connected to the inner wall of the first sliding block, the collar (34) is sleeved on the bottom of the first sealing seat (33), and the inner wall of the collar (34) and the bottom surface of the first sealing seat (33) are arranged to form a first positioning hole (41); when the fixed clamp (6) and the movable clamp (7) are molded together, the two semicircular positioning blocks (16) are arranged to form a positioning column, and the positioning column and the first positioning hole (41) are concavely matched; at the beginning, the first elastic member (35) is in an extended state, the bottom surface of the limit ring (40) contacts the bottom wall of the movable hole (37), and the bottom end of the pressure block (36) passes through the first sealing hole (39) and extends into the first positioning hole (41).

10. A simple cylindrical battery sealing device according to claim 9, characterized in that: A guide column (42) is convexly provided on the top surface of the pressing block (36), the bottom of the first elastic member (35) is sleeved outside the guide column (42), a fixing hole (43) is concavely provided on the bottom surface of the top plate (3), and the top of the first elastic member (35) extends into the fixing hole (43).

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