Cylindrical battery sealing machine

Abstract

The utility model relates to the technical field of battery sealing, in particular to a cylindrical battery sealing machine 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] This utility model relates to the field of battery sealing technology, and in particular to a cylindrical battery sealing machine. Background Technology

[0002] Cylindrical batteries are widely used in consumer electronics, electric vehicles, and energy storage systems. Their sealing process directly determines the battery's sealing performance, safety, and lifespan. In the laboratory, sealing tests are conducted on cylindrical batteries using a sealing machine. Existing patents, such as Chinese patent application number 201820732689.0, disclose a cylindrical battery sealing machine, including a machine body, a precision guide post, a middle sliding plate, a battery fixing mechanism, a fixing plate, and a sealing mold. The machine body includes a housing, an oil pressure gauge, a pressure relief handle valve, and a pressure boosting handle valve located on the side of the housing, and an oil pressure jack located inside the housing. The precision guide post is vertically fixed inside the housing, with its top end exposed outside the housing. The middle sliding plate is slidably mounted on the precision guide post and is located on the upper part of the housing. The battery fixing mechanism is fixed to the upper surface of the middle sliding plate. The fixing plate is fixed to the top of the precision guide post. The sealing mold is detachably installed at the bottom of the fixing plate. The sealing mold includes a first-sealing mold and a second-sealing mold. Although the patent document discloses a first sealing mold and a second sealing mold, it does not disclose how the first sealing mold and the second sealing mold seal the cylindrical battery in sequence. Since the position of the cylindrical battery is fixed by the battery fixing mechanism, and the cylindrical battery can only move up and down with the middle slide, those skilled in the art do not know how the first sealing mold and the second sealing mold seal the cylindrical battery in sequence. Utility Model Content

[0003] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a cylindrical battery sealing machine.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A cylindrical battery sealing machine includes a base, a guide rod frame mounted on the base, a top plate mounted on the top of the guide rod frame, a lifting plate disposed above the base and sliding vertically with the guide rod frame, a lifting drive mechanism installed inside the base for driving the lifting plate to move up and down, a fixed clamp mounted on the top surface of the lifting plate, a movable clamp horizontally slidably connected to the top surface of the lifting plate for closing with the fixed clamp, a translation drive mechanism for driving the movable clamp closer to or away from the fixed clamp, a slide block horizontally slidably connected to the bottom surface of the top plate, two limiting members respectively mounted on both sides of the top plate, and a first sealing mold and a second sealing mold mounted side by side on the slide block. The slide block is located between the two limiting members, and each of the two limiting members is equipped with a first magnet for magnetically attracting the slide block. A first sealing waiting position, a sealing position, and a second sealing waiting position are horizontally arranged between the two limiting members. After the movable clamp and the fixed clamp close together, they are positioned corresponding to the sealing position. The first sealing mold and the second sealing mold alternately move to the sealing position.

[0006] Furthermore, both the fixed clamp and the movable clamp have semi-circular clamping grooves on their sides that are close to each other, which are used to accommodate cylindrical batteries.

[0007] Furthermore, a second magnet is embedded in the inner wall of the semi-circular clamping groove of the fixing fixture, and the second magnet is used for the magnetic cylindrical battery.

[0008] Furthermore, both the top surface of the fixed clamp and the top surface of the movable clamp are provided with a semi-circular positioning block. The semi-circular positioning block is arranged around the semi-circular clamping groove. The inner arc surface of the semi-circular positioning block is provided with a semi-circular locking strip, which is used to engage with the top locking groove of the cylindrical battery.

[0009] Furthermore, the second sealing mold includes a second sealing seat, a cover, a second elastic element, a sealing mold core, and a sealing forming guide sleeve. The second sealing seat is disposed on a slide, and 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 within the sliding cavity. The outer wall of the sealing mold core is spaced apart from the inner wall of the sliding cavity. The cover is fitted onto the bottom of the second sealing seat and has a second positioning hole. The sealing forming guide sleeve is slidably fitted onto the outside of the sealing mold core and is slidably connected to the inner wall of the second positioning hole. The periphery of the sealing forming guide sleeve is provided with... A limiting plate is provided, which is slidably connected to the inner wall of the sliding cavity. The second elastic element is located inside the sliding cavity, and its two ends elastically abut against the top wall of the sliding cavity and the top surface of the sealing forming guide sleeve, respectively. The bottom end face edge of the sealing mold core is recessed with an annular sealing forming groove. When the fixed fixture and the movable fixture are closed, two semi-circular positioning blocks surround a positioning post, and the positioning post is adapted to the second positioning hole. At the beginning, the second elastic element is in an extended state, the limiting plate abuts against the inner bottom wall of the sleeve cover, and the bottom end face of the sealing forming guide sleeve extends out of the second positioning hole.

[0010] Furthermore, the second sealing seat is detachably connected to the sealing mold core via locking bolts. The second sealing seat has a first insertion hole communicating with the sliding cavity on its periphery, and the sealing mold core has a second insertion hole coaxial with the first insertion hole in its radial recess.

[0011] Furthermore, the cover is threaded to the bottom of the second sealing seat, and the peripheral sidewall of the cover is provided with a second screw hole.

[0012] Furthermore, the bottom end face of the sealing mold core is recessed with a receiving hole, and the sealing forming groove is arranged around the receiving hole.

[0013] Furthermore, the first sealing mold includes a cover plate, a first sealing seat, a collar, a first elastic element, and a pressure block. The cover plate is mounted on the slide block, and the first sealing seat is mounted on the cover plate. The first sealing seat is coaxially connected from top to bottom with a movable hole, a sliding hole, and a first sealing hole. The cover plate covers the top end of the movable hole. A limit ring is provided on the periphery of the pressure block. The limit ring is slidably connected to the inner wall of the movable hole. The first elastic element is located in the movable hole. The two ends of the first elastic element elastically abut against the cover plate and the pressure block, respectively. The pressure block is slidably connected to the inner wall of the first slider. The collar is fitted onto the bottom of the first sealing seat. The inner wall of the collar and the bottom surface of the first sealing seat form a first positioning hole. When the fixed fixture and the movable fixture are closed, two semi-circular positioning blocks form a positioning post. The positioning post is concave and convex with the first positioning hole. Initially, the first elastic element is in an extended state, the bottom surface of the limit ring abuts against the bottom wall of the movable hole, and the bottom end of the pressure block penetrates the first sealing hole and extends into the first positioning hole.

[0014] Furthermore, the top surface of the pressure block is provided with a guide post, the bottom of the first elastic element is sleeved on the guide post, the bottom surface of the top plate is provided with a fixing hole, and the top of the first elastic element extends into the fixing hole.

[0015] The beneficial effects of this utility model are as follows: This utility model can realize the automated opening and closing of the fixed clamp and the movable clamp, with high opening and closing efficiency, reducing the labor intensity of operators. The cylindrical battery is sealed by the alternating movement of the first sealing mold and the second sealing mold to the sealing position. During the reciprocating movement of the first sealing mold and the second sealing mold driven by the slide, the slide is blocked and limited by the limiting component and the slide is magnetically attracted by the first magnet to ensure that the slide can move accurately into place and has good stability. This ensures the positional accuracy and stability of the first sealing mold and the second sealing mold during sealing, which greatly improves the accuracy and quality of sealing the cylindrical battery. Attached Figure Description

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

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

[0018] Figure 3 This is a cross-sectional view of the top plate, slide, limiting member, first magnet, first sealing mold and second sealing mold of this utility model.

[0019] Figure 4 This is a three-dimensional structural diagram of the fixed clamp, movable clamp, and translation drive mechanism of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Base; 2. Guide rod frame; 3. Top plate; 4. Lifting plate; 5. Lifting drive mechanism; 6. Fixed clamp; 7. Movable clamp; 8. Translation drive mechanism; 9. Slide; 10. Limiting component; 11. First sealing mold; 12. Second sealing mold; 13. First magnet; 14. Semicircular clamping groove; 15. Second magnet; 16. Semicircular positioning block; 17. Semicircular retaining strip; 18. Second sealing seat; 19. Cover; 20. Second elastic component; 21. Sealing 21. Mold 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. Collar; 35. First elastic element; 36. Pressure block; 37. Movable hole; 38. Sliding hole; 39. First sealing hole; 40. Limiting ring; 41. First positioning hole; 42. Guide post; 43. Fixing hole; 44. Driver. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0023] like Figures 1 to 4As shown, this utility model provides a simple cylindrical battery sealing machine mainly used for testing, which includes a base 1, a guide rod frame 2 mounted on the base 1, a top plate 3 mounted on the top of the guide rod frame 2, a lifting plate 4 located above the base 1 and sliding vertically with the guide rod frame 2, a lifting drive mechanism 5 installed inside the base 1 for driving the lifting plate 4 to rise and fall, 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 for closing with the fixed clamp 6, and a translation drive mechanism 8 for driving the movable clamp 7 to move closer to or away from the fixed clamp 6. A slide block 9 is horizontally slidably connected to the bottom surface of the top plate 3. Two limiting members 10 are respectively installed on both sides of the top plate 3. A first sealing mold 11 and a second sealing mold 12 are installed side by side on the slide block 9. The slide block 9 is located between the two limiting members 10. Each of the two limiting members 10 is equipped with a first magnet 13. The first magnet 13 is used to magnetically attract the slide block 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 clamp 7 and the fixed clamp 6 are closed, they are set to correspond to the sealing position. The first sealing mold 11 and the second sealing mold 12 move alternately to the sealing position.

[0024] In practical applications, the fixed clamp 6 is always located below the sealing position. The translation drive mechanism 8 drives the movable clamp 7 away from the fixed clamp 6, causing the movable clamp 7 to open (open) with the fixed clamp 6. At this time, the cylindrical battery to be sealed is placed between the fixed clamp 6 and the movable clamp 7 after the mold is opened. Then, the translation drive mechanism 8 drives the movable clamp 7 closer to the fixed clamp 6 until the movable clamp 7 closes (closes) with the fixed clamp 6 and clamps the cylindrical battery to be sealed. The drive slide 9 is then translated, causing the first sealing mold 11 to move to the sealing position and the second sealing mold 12 to move to the second sealing waiting position. A sealing mold 11 is aligned vertically with the cylindrical battery to be sealed. 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 into position, thereby ensuring the positional accuracy and stability of the slide 9, so that the first sealing mold 11 is accurately aligned with the cylindrical battery to be sealed. Then, the lifting drive mechanism 5 drives the lifting plate 4, along with the fixed clamp 6 and movable clamp 7 after the mold is closed, to rise, so that the cylindrical battery to be sealed approaches the first sealing mold 11, until the first sealing mold 11 performs the first sealing bend on the edge of the cylindrical battery to be sealed, and then... The rear lifting drive mechanism 5 drives the lifting plate 4, along with the fixed clamp 6 and movable clamp 7 after mold closing, to descend. Then, it drives the slide 9 to move, causing the first sealing mold 11 to move from the sealing position to the first sealing waiting position, and the second sealing mold 12 to move from the second sealing waiting position to the sealing position, until another limiting member 10 blocks and limits the slide 9. 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 into position. At this point, the second sealing mold 12 is accurately aligned with the cylindrical battery after the first sealing. Then, the lifting drive mechanism 5 drives the lifting plate 4, along with the fixed clamp 6 and movable clamp 7 after mold closing, to descend. The fixed clamp 6 and the movable clamp 7 rise, bringing the cylindrical battery after the first sealing closer to the second sealing mold 12, until the second sealing mold 12 performs a second sealing bend on the cylindrical battery, thus completing the sealing process. Finally, the lifting drive mechanism 5 drives the lifting plate 4, along with the fixed clamp 6 and the movable clamp 7 after the mold is closed, to descend and reset. The translation drive mechanism 8 drives the movable clamp 7 to move away from the fixed clamp 6, causing the movable clamp 7 to open the mold with the fixed clamp 6. At this point, the sealed cylindrical battery can be removed, and the cylindrical battery to be sealed can be placed between the fixed clamp 6 and the movable clamp 7.This invention enables automated opening and closing of the fixed clamp 6 and the movable clamp 7, resulting in high efficiency and reduced labor intensity for operators. The cylindrical battery is sealed secondary by the alternating movement of the first sealing mold 11 and the second sealing mold 12 to the sealing position. During the reciprocating movement of the first sealing mold 11 and the second sealing mold 12 driven by the slide 9, the slide 9 is blocked and limited by the limiting member 10 and magnetically attracted by the first magnet 13, ensuring accurate and stable movement of the slide 9. This guarantees the positional accuracy and stability of the first sealing mold 11 and the second sealing mold 12 during sealing, significantly improving the accuracy and quality of sealing the cylindrical battery. This invention is particularly suitable for laboratory settings.

[0025] Specifically, a driver 44 is installed on the side wall of the slide 9. In practical applications, the driver 44 drives the slide 9 to reciprocate, thereby enabling the first sealing mold 11 and the second sealing mold 12 to move alternately to the sealing position. Of course, the driver 44 can be an electric or pneumatic drive mechanism to achieve automated control, or it can be an operating handle to achieve manual control.

[0026] Specifically, the lifting drive mechanism 5 can be a cylinder, hydraulic cylinder or lead screw module, which will not be elaborated here.

[0027] In this embodiment, both the fixed clamp 6 and the movable clamp 7 have semi-circular clamping grooves 14 on their adjacent sides, which are used to accommodate the cylindrical battery. In practical applications, when the fixed clamp 6 and the movable clamp 7 are closed, the cylindrical battery is clamped within the semi-circular clamping grooves 14 of the fixed clamp 6 and the movable clamp 7, thereby improving the stability of clamping the cylindrical battery and preventing damage to the cylindrical battery.

[0028] In this embodiment, a second magnet 15 is embedded in the inner wall of the semicircular clamping groove 14 of the fixed clamp 6. The second magnet 15 is used to magnetize the cylindrical battery. In practical applications, after the fixed clamp 6 and the movable clamp 7 are molded, the sealed cylindrical battery is magnetically attracted in the semicircular clamping groove 14 of the fixed clamp 6, ensuring the stability of the cylindrical battery in the semicircular clamping groove 14. This makes it easy for the operator to remove the sealed cylindrical battery. Then, the operator places the cylindrical battery to be sealed in the semicircular clamping groove 14 of the fixed clamp 6. The second magnet 15 magnetically attracts the cylindrical battery, making the cylindrical battery stably placed in the semicircular clamping groove 14 of the fixed clamp 6 until the movable clamp 7 and the fixed clamp 6 close to clamp the cylindrical battery.

[0029] In this embodiment, both the top surface of the fixed clamp 6 and the top surface of the movable clamp 7 are provided with a semi-circular positioning block 16. The semi-circular positioning block 16 is arranged around the semi-circular clamping groove 14, and the inner arc surface of the semi-circular positioning block 16 is provided with a semi-circular retaining strip 17, which is used to engage with the top retaining groove of the cylindrical battery. When the cylindrical battery is placed in the semi-circular clamping groove 14 of the fixed clamp 6, the semi-circular retaining strip 17 engages with the top retaining groove of the cylindrical battery, improving the stability and positional accuracy of the cylindrical battery in the semi-circular clamping groove 14 of the fixed clamp 6. In addition, fixing the cylindrical battery by magnetic attraction and snap-fit ​​further improves the stability and positional accuracy of the cylindrical battery in the semi-circular clamping groove 14 of the fixed clamp 6.

[0030] In this embodiment, the second sealing mold 12 includes a second sealing seat 18, a cover 19, a second elastic element 20, a sealing mold core 21, and a sealing forming guide sleeve 22. The second sealing seat 18 is disposed on the slide 9, and a sliding cavity 23 is recessed on the bottom surface of the second sealing seat 18. The sealing mold core 21 is installed on the second sealing seat 18 and located in the sliding cavity 23. The outer wall of the sealing mold core 21 is spaced apart from the inner wall of the sliding cavity 23. The cover 19 is fitted onto the bottom of the second sealing seat 18, and a second positioning hole 24 is provided on the cover 19. The sealing forming guide sleeve 22 is slidably fitted outside the sealing mold core 21, and the sealing forming guide sleeve 22 is slidably connected to the inner wall of the second positioning hole 24. A limiting plate 25 is provided on the periphery of 22. The limiting plate 25 is slidably connected to the inner wall of the sliding cavity 23. The second elastic element 20 is located in the sliding cavity 23. The two ends of the second elastic element 20 elastically abut against the top wall of the sliding cavity 23 and the top surface of the sealing forming guide sleeve 22, respectively. The bottom end face edge of the sealing mold core 21 is recessed with an annular sealing forming groove 26. When the fixed clamp 6 and the movable clamp 7 are closed, the two semi-circular positioning blocks 16 surround the positioning post, and the positioning post is adapted to the second positioning hole 24. At the beginning, the second elastic element 20 is in the extended state, the limiting plate 25 abuts against the inner bottom wall of the sleeve cover 19, and the bottom end face of the sealing forming guide sleeve 22 extends out of the second positioning hole 24.

[0031] In practical applications, 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, along with the movable clamp 7 and the fixed clamp 6 after mold closing, and the cylindrical battery after the first sealing, to rise. This causes the positioning post formed by the movable clamp 7 and the fixed clamp 6 after mold closing to first abut against the bottom end face of the sealing forming guide sleeve 22, causing the sealing forming guide sleeve 22 to move upward and compress the second elastic element 20. The positioning post then moves upward along the second positioning hole 24, causing... The sealing forming 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. During the second sealing bend of the sealing edge of the cylindrical battery by the sealing mold core 21 and the upward movement of the sealing forming guide sleeve 22, the inner wall of the sealing forming guide sleeve 22 blocks and limits the outer side of the sealing edge of the cylindrical battery, so as to constrain the sealing edge of the cylindrical battery to only be bent and formed along the sealing bend arc of the sealing forming 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 mold core 21 via a locking bolt 27. The second sealing seat 18 has a first insertion hole on its periphery that communicates with the sliding cavity 23, and the sealing mold core 21 has a second insertion hole that is coaxial with the first insertion hole in its radial direction. When disassembling or assembling the sealing mold core 21, the disassembly or assembly tools such as the insertion rod are first inserted into the first and second insertion holes to limit the sealing mold core 21 so that it cannot rotate relative to the second sealing seat 18. Then, the locking bolt 27 is tightened with a screwdriver to prevent the sealing mold core 21 from rotating synchronously with the locking bolt 27, ensuring that the locking bolt 27 can firmly lock the second sealing seat 18 and the sealing mold core 21, or easily unlock the second sealing seat 18 and the sealing mold 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 and assembly tool such as a plug is inserted into the second screw hole, and the cover 19 is screwed on by the disassembly and assembly tool, so that the cover 19 rotates relative to the thread of 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 face of the sealing mold core 21 is recessed 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 clearance space for the tabs of the cylindrical battery, preventing the tabs of the cylindrical battery from being deformed / damaged.

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

[0036] In this embodiment, the first sealing mold 11 includes a cover plate 32, a first sealing seat 33, a collar 34, a first elastic element 35, and a pressure block 36. The cover plate 32 is mounted on the slide 9, and 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 limit ring 40 is provided on the periphery of the pressure block 36. The limit ring 40 is slidably connected to the inner wall of the movable hole 37. The first elastic element 35 is located inside the movable hole 37, and both ends of the first elastic element 35 are respectively connected to the cover plate 36. Plate 32 and pressure block 36 elastically abut against each other. Pressure block 36 is slidably connected to the inner wall of the first slider. Collar 34 is fitted onto the bottom of the first sealing seat 33. The inner wall of collar 34 and the bottom surface of the first sealing seat 33 form a first positioning hole 41. When the fixed clamp 6 and the movable clamp 7 are closed, two semi-circular positioning blocks 16 form a positioning post. The positioning post is adapted to the first positioning hole 41. Initially, the first elastic element 35 is in an extended state. The bottom surface of the limiting ring 40 abuts against the bottom wall of the movable hole 37. The bottom end of pressure block 36 passes 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 mold 11 is located at the sealing position and corresponds to the cylindrical battery to be sealed, the lifting drive mechanism 5 drives the lifting plate 4, along with the movable clamp 7 and the fixed clamp 6 after mold closing, and the cylindrical battery to be sealed, to rise. The positioning pin formed by the movable clamp 7 and the fixed clamp 6 after mold closing moves into the first positioning hole 41. The middle part of the top surface of the cylindrical battery abuts against the pressure block 36, causing the pressure block 36 to move upward and compress the first elastic member 35. The pressure block 36 continues to press 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 to perform the first sealing bend, so as to achieve the first sealing of the cylindrical battery.

[0038] In this embodiment, the top surface of the pressure block 36 is provided with a guide post 42, the first elastic element 35 is a spring, the bottom of the first elastic element 35 is sleeved on the guide post 42, and the bottom surface of the top plate 3 is recessed with a fixing hole 43, the top of the first elastic element 35 extends into the fixing hole 43. The guide post 42 and the fixing hole 43 play a positioning role for the first elastic element 35, which facilitates the assembly and disassembly of the first elastic element 35, improves the positional accuracy and stability of the first elastic element 35, and when the first elastic element 35 is working in extension and retraction, the guide post 42 plays a guiding role for the first elastic element 35, which improves the working stability of the first elastic element 35.

[0039] Specifically, the collar 34 is threadedly connected to the bottom of the first sealing seat 33, and a first screw-in hole is provided on the side wall of the collar 34. When assembling or disassembling the collar 34, a disassembly / assembly tool such as a rod is inserted into the first screw-in hole, and the collar 34 is screwed in using the tool, causing the collar 34 to rotate relative to the thread of the first sealing seat 33. This structural design not only ensures a secure connection between the collar 34 and the first sealing seat 33 but also facilitates their assembly and disassembly.

[0040] Specifically, the translation drive mechanism 8 includes a translation cylinder, the cylinder body of which is mounted on the side wall of the fixed fixture 6, and the piston rod of which is mounted 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 extending or retracting the translation cylinder.

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

[0042] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A cylindrical battery sealing machine, characterized in that: Includes a base (1), a guide rod frame (2) mounted on the base (1), a top plate (3) mounted on the top of the guide rod frame (2), a lifting plate (4) located above the base (1) and sliding up and down with the guide rod frame (2), a lifting drive mechanism (5) mounted inside the base (1) for driving the lifting plate (4) to rise and fall, 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) for mold closing with the fixed clamp (6), a translation drive mechanism (8) for driving the movable clamp (7) to move closer to or away from the fixed clamp (6), and a bottom plate horizontally slidably connected to the top plate (3). The slide (9) is mounted on the top plate (3), and two limiting members (10) are respectively installed on both sides of the top plate (3). The first sealing mold (11) and the second sealing mold (12) are installed side by side on the slide (9). The slide (9) is located between the two limiting members (10). Both limiting members (10) are equipped with a first magnet (13). The first magnet (13) is used to magnetically attract the slide (9). The first sealing waiting position, the sealing position and the second sealing waiting position are horizontally arranged between the two limiting members (10). After the movable clamp (7) and the fixed clamp (6) are closed, they are set to correspond to the sealing position. The first sealing mold (11) and the second sealing mold (12) move alternately to the sealing position.

2. The cylindrical battery sealing machine according to claim 1, characterized in that: The fixed clamp (6) and the movable clamp (7) are each provided with a semi-circular clamping groove (14) on the side close to each other. The semi-circular clamping groove (14) is used to accommodate the cylindrical battery.

3. A cylindrical battery sealing machine according to claim 2, characterized in that: The inner wall of the semi-circular clamping groove (14) of the fixing fixture (6) is fitted with a second magnet (15), which is used for the magnetic cylindrical battery.

4. A cylindrical battery sealing machine according to claim 1, characterized in that: Both the top surface of the fixed clamp (6) and the top surface of the movable clamp (7) are provided with a semi-circular positioning block (16). The semi-circular positioning block (16) is arranged around the semi-circular clamping groove (14). The inner arc surface of the semi-circular positioning block (16) is provided with a semi-circular locking strip (17). The semi-circular locking strip (17) is used to engage with the top slot of the cylindrical battery.

5. A cylindrical battery sealing machine according to claim 4, characterized in that: The second sealing mold (12) includes a second sealing seat (18), a cover (19), a second elastic element (20), a sealing mold core (21), and a sealing forming guide sleeve (22). The second sealing seat (18) is disposed on a slide (9). A sliding cavity (23) is recessed on the bottom surface of the second sealing seat (18). The sealing mold core (21) is installed on the second sealing seat (18) and located in the sliding cavity (23). The outer wall of the sealing mold core (21) is spaced from the inner wall of the sliding cavity (23). The cover (19) is fitted onto the bottom of the second sealing seat (18). The cover (19) has a second positioning hole (24). The sealing forming guide sleeve (22) is slidably fitted onto the outside of the sealing mold core (21). The sealing forming guide sleeve (22) is slidably connected to the inner wall of the second positioning hole (24). (22) is provided with a limiting plate (25) on its periphery. The limiting plate (25) is slidably connected to the inner wall of the sliding cavity (23). The second elastic element (20) is located in the sliding cavity (23). The two ends of the second elastic element (20) elastically abut against the top wall of the sliding cavity (23) and the top surface of the sealing forming guide sleeve (22), respectively. The bottom end face edge of the sealing mold core (21) is recessed with an annular sealing forming groove (26). When the fixed clamp (6) and the movable clamp (7) are closed, the two semi-circular positioning blocks (16) surround the positioning post. The positioning post is adapted to the second positioning hole (24). At the beginning, the second elastic element (20) is in the extended state. The limiting plate (25) abuts against the inner bottom wall of the sleeve cover (19). The bottom end face of the sealing forming guide sleeve (22) extends out of the second positioning hole (24).

6. A cylindrical battery sealing machine according to claim 5, characterized in that: The second sealing seat (18) is detachably connected to the sealing mold core (21) via a locking bolt (27). The second sealing seat (18) has a first insertion hole on its periphery that communicates with the sliding cavity (23). The sealing mold core (21) has a second insertion hole that is coaxial with the first insertion hole in its radial direction.

7. A cylindrical battery sealing machine according to claim 5, characterized in that: The cover (19) is threaded to the bottom of the second sealing seat (18), and the cover (19) has a second screw hole on its peripheral side wall.

8. A cylindrical battery sealing machine according to claim 5, characterized in that: The bottom end face of the sealing mold core (21) is recessed with a receiving hole (31), and the sealing forming groove (26) is arranged around the receiving hole (31).

9. A cylindrical battery sealing machine according to claim 4, characterized in that: The first sealing mold (11) includes a cover plate (32), a first sealing seat (33), a collar (34), a first elastic element (35), and a pressure block (36). The cover plate (32) is mounted on the slide (9), and 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 limit ring (40) is provided on the periphery of the pressure block (36). The limit ring (40) is slidably connected to the inner wall of the movable hole (37). The first elastic element (35) is located inside the movable hole (37). The two ends of the first elastic element (35) are respectively The cover plate (32) and the pressure block (36) elastically abut against each other. The pressure block (36) is slidably connected to the inner wall of the first slider. The collar (34) is fitted onto the bottom of the first sealing seat (33). The inner wall of the collar (34) and the bottom surface of the first sealing seat (33) form the first positioning hole (41). When the fixed clamp (6) and the movable clamp (7) are closed, the two semi-circular positioning blocks (16) form the positioning post. The positioning post is adapted to the first positioning hole (41). At the beginning, the first elastic element (35) is in the extended state. The bottom surface of the limiting ring (40) abuts against the bottom wall of the movable hole (37). 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 cylindrical battery sealing machine according to claim 9, characterized in that: The top surface of the pressure block (36) is provided with a guide post (42), the bottom of the first elastic element (35) is sleeved on the guide post (42), the bottom surface of the top plate (3) is provided with a fixing hole (43), and the top of the first elastic element (35) extends into the fixing hole (43).

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