Cylindrical battery sealing equipment

Abstract

The utility model relates to a cylindrical battery sealing device which comprises a conveying mechanism, a sealing mechanism and a sealing mechanism. The sealing mechanism comprises a plurality of sealing assemblies which are sequentially arranged in the battery conveying direction, each sealing assembly comprises a pressing and sealing unit capable of moving up and down, and the pressing and sealing units are used for pressing and sealing the batteries to be sealed; and the driving mechanism comprises a driving unit and driving connecting units connected with the sealing assemblies in a one-to-one correspondence mode, and the driving unit can drive the driving connecting units to ascend and descend up and down so as to drive the pressing and sealing unit to move up and down. According to the cylindrical battery sealing equipment designed by the utility model, the yield of battery sealing is effectively improved, and the equipment is stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to lithium battery production and processing technical field especially relates to a cylindrical battery sealing equipment. BACKGROUND

[0002] In the manufacturing process of cylindrical steel shell lithium battery, the battery needs to be sealed after liquid injection, and the cylindrical battery sealing is usually in the form of downward pressure sealing, that is, the battery is fixed by a clamp, and the port of the cylindrical battery is pressure sealed and formed by a pressure sealing piece. The quality of sealing directly affects the quality of the battery. In order to improve the sealing quality, the sealing is sealed by multiple times. In the prior art, multiple pressure sealing pieces are arranged on a mounting seat, and the mounting seat is driven to move up and down by a driving unit to drive the pressure sealing pieces to move intermittently between the batteries to seal multiple times. However, due to the uneven pressure of the pressure sealing pieces at different positions of the mounting seat on the battery, the sealing quality of the battery cannot be well controlled, and the sealing scrap rate increases. In some prior art, multiple driving units are used to drive different pressure sealing pieces to seal downward, but this method increases the number of parts of the equipment, which increases the failure rate of the equipment and reduces the stability. SUMMARY

[0003] In view of the above problems, the utility model aims to design a cylindrical battery sealing equipment to effectively improve the yield of battery sealing and make the equipment stable and reliable.

[0004] The utility model discloses the purpose through the following technical scheme:

[0005] A cylindrical battery sealing equipment is designed, which comprises:

[0006] The conveying mechanism comprises a battery conveying line for loading and conveying the battery;

[0007] The sealing mechanism comprises a plurality of sealing assemblies arranged in sequence along the battery conveying direction, each sealing assembly comprising a downwardly movable pressure sealing unit, the pressure sealing unit being used for downward pressure sealing of the battery to be sealed;

[0008] The driving mechanism comprises a driving unit and a driving connection unit corresponding to the sealing assembly, the driving unit being capable of driving the driving connection unit to move up and down to drive the pressure sealing unit to move up and down.

[0009] The cylindrical battery sealing equipment designed in the scheme designs the number of sealing assemblies according to the number of times of pressing sealing required, and seals the battery in a multiple stamping and sealing manner. The battery conveying line adopts an intermittent conveying line, a magnetic attraction carrier is designed on the battery conveying line to load the battery, and a plurality of sealing assemblies are arranged in sequence along the conveying direction of the battery conveying line to press and seal the battery conveyed to the pressing and sealing position of each sealing assembly. Specifically, the sealing assembly is provided with a pressing and sealing unit, each pressing and sealing unit is drivingly connected with a driving unit through a corresponding driving connection unit, so that a plurality of pressing and sealing units are driven synchronously or asynchronously up and down by one driving unit to complete the pressing and sealing of the battery. Through the design of a plurality of separate pressing and sealing assemblies, the yield of battery sealing is effectively improved, one power source is used for driving, the integration of the equipment is improved, the number of parts is reduced, and the stability of the equipment is improved.

[0010] Further, the pressing and sealing unit comprises a mounting seat above the battery conveying line, a pressing and sealing piece arranged on the side of the mounting seat facing the battery conveying line, and a lifting rod connected with the mounting seat and the driving connection unit.

[0011] The pressing and sealing piece is detachably arranged on the mounting seat, and the pressing and sealing piece is replaced according to the size specification of the battery to improve the versatility of the equipment. The lifting rod is provided with two lifting rods which are symmetrically arranged with the center line of the mounting seat. The two lifting rods are connected with the driving connection unit to improve the stability of the lifting of the mounting seat and the uniformity of the pressure applied by the pressing and sealing piece to the battery.

[0012] Further, the sealing mechanism comprises a first sealing assembly, at least one second sealing assembly, and a third sealing assembly arranged in sequence along the conveying direction of the battery.

[0013] According to the battery sealing process, four groups of sealing assemblies are arranged, the first sealing assembly preliminarily seals the battery, the second sealing assembly gradually extrudes and shapes the edge of the preliminarily sealed battery until the battery cap is completely wrapped, and the third sealing assembly further stamps the sealed end of the battery to improve the quality of the sealing and ensure the sealing.

[0014] Further, the first sealing assembly is further provided with a pre-pressing piece for positioning and pressing the battery to be sealed, and the pre-pressing piece is movably arranged on the mounting seat.

[0015] In order to ensure the uniformity of the pressing force of the sealing and the quality of the sealing, all the batteries are at the preset pressing height before the sealing, so that the ports of the batteries are at the predetermined sealing position under the force, so that the pre-pressing part is arranged on the mounting seat, and the pre-pressing part is driven to descend with the mounting seat during the descending process, so that the battery not in the set position is driven to descend, and the battery is adjusted to the preset placing height. In addition, the pre-pressing part and the mounting seat are connected in an elastic connection mode, so that the pre-pressing part and the battery are not excessively extruded to deform the port of the battery, and the sealing is avoided.

[0016] Further, the first sealing assembly and the second sealing assembly further comprise a clamping unit for clamping and positioning the battery, and the clamping unit comprises clamping blocks movably arranged on both sides of the battery conveying line.

[0017] The first sealing assembly and the second sealing assembly are provided with the clamping unit below the pressing unit of the first sealing assembly and the second sealing assembly. When the battery conveying line conveys the battery to the pressing position of the first sealing assembly and the second sealing assembly, the two clamping blocks are close to each other, and the battery is clamped and positioned from both sides of the battery, so as to ensure the stability of the battery during the pressing process and improve the precision of the battery pressing. In addition, the clamping movement of the clamping block is synchronous with the lifting movement of the pressing part, so as to improve the efficiency of the sealing equipment

[0018] Further, the clamping unit further comprises a clamping base arranged on both sides of the battery conveying line, and a transmission connecting piece rotatably arranged on the clamping base, one end of the transmission connecting piece is rotatably connected with the clamping block, and the other end is slidably connected with the driving connection unit. The transmission connecting piece converts the up-down movement of the driving connection unit into the horizontal movement of the clamping block.

[0019] In order to realize the synchronous clamping movement of the clamping block and the lifting movement of the pressing part, the clamping block and the pressing part adopt the same driving source, that is, the clamping block is connected with the driving connection unit through the transmission connecting piece, the middle position of the transmission connecting piece is rotatably arranged on the clamping base through the rotating shaft, one end of the transmission connecting piece is rotatably connected with the clamping block, and the other end is slidably connected with the driving connection unit. When the driving connection unit rises and falls, the transmission connecting piece rotates around the rotating shaft at the middle position, and then drives the horizontal movement of the clamping block.

[0020] Further, the driving connection unit comprises a guide piece, and one end of the transmission connecting piece connected with the driving connection unit is provided with a guide wheel, and the guide wheel is in rolling fit with the guide piece.

[0021] The guide piece is provided with a guide path, and the guide wheel is tightly attached to the guide piece and relatively rolls along the guide path in the lifting process of the guide piece, so that the transmission connecting piece reciprocatingly rotates around the rotating shaft at the middle position, and further drives the clamping block to horizontally move, thereby converting the up-down movement of the driving connecting unit into the horizontal movement of the clamping block.

[0022] Further, the driving unit comprises a transmission shaft rotationally connected with the driving connecting unit, and a driving member for driving the transmission shaft to rotate.

[0023] The driving unit can be driven by a motor, i.e. the driving member can be a speed reducer motor connected with the transmission shaft through a shaft coupling, and the transmission shaft is connected with the driving connecting unit, so that the driving member drives the transmission shaft to rotate and further drives the driving connecting unit to move up and down.

[0024] Further, the transmission shaft is provided with eccentric wheels corresponding to the driving connecting units, and the driving connecting units are sleeved on the outer periphery of the eccentric wheels, and the central axes of adjacent eccentric wheels are not collinear, so that the plurality of driving connecting units can move up and down asynchronously.

[0025] The transmission shaft is provided with eccentric wheels corresponding to the driving connecting units, and the driving connecting units are sleeved on the eccentric wheels through bearings, and the relative positions of the central axes of the eccentric wheels are adjusted, so that when the transmission shaft rotates, the driving connecting units are driven to move up and down asynchronously through the up-down fluctuation of the eccentric wheels rotating around the axis of the transmission shaft.

[0026] Further, the conveying mechanism further comprises an indexing connecting unit, the indexing connecting unit is connected with the transmission shaft and the battery conveying line, and the transmission shaft drives the battery conveying line to move intermittently through the indexing connecting unit.

[0027] The indexing connecting unit comprises a cam separator and an indexing turntable, the battery conveying line is in the form of a ring-shaped line, the battery conveying line is clamped on the outer periphery of the indexing turntable, and the battery conveying line is driven to move intermittently through the intermittent rotation of the cam separator. The cam separator is connected with the transmission shaft through a belt or a chain, so that the transmission shaft drives the cam separator to rotate, and only one power source is used for the whole device.

[0028] Compared with the prior art, the device has the following advantages:

[0029] The cylindrical battery sealing equipment designed in the scheme designs the number of sealing assemblies according to the number of times of pressing sealing required, and seals the battery in a multiple stamping and sealing mode. The battery conveying line adopts an intermittent conveying line, a magnetic suction carrier is designed on the battery conveying line to load the battery, and a plurality of sealing assemblies are sequentially arranged along the conveying direction of the battery conveying line to sequentially seal the battery conveyed to the sealing position of each sealing assembly. Specifically, the sealing assembly is provided with a pressing sealing unit, and each pressing sealing unit is drivingly connected with a driving unit through a corresponding driving connection unit, so that a plurality of pressing sealing units are driven synchronously or asynchronously up and down by one driving unit to complete the pressing sealing of the battery. Through the design of a plurality of separate pressing sealing assemblies, the yield of battery sealing is effectively improved, one power source is used for driving, the integration of the equipment is improved, the number of parts is reduced, and the stability of the equipment is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural diagram of the cylindrical battery sealing equipment of an embodiment of the utility model.

[0031] Figure 2 It is a front view. Figure 1

[0032] Figure 3 It is a structural diagram of the sealing mechanism of an embodiment of the utility model.

[0033] Figure 4 It is a structural diagram of the driving mechanism of an embodiment of the utility model.

[0034] ILLUSTRATION: 1, conveying mechanism; 11, battery conveying line; 12, indexing connection unit; 2, sealing mechanism; 21, first sealing assembly; 22, second sealing assembly; 23, third sealing assembly; 24, pressing sealing unit; 25, pre-pressing piece; 26, clamping unit; 241, mounting seat; 242, pressing sealing piece; 243, lifting rod; 261, clamping block; 262, clamping base; 263, transmission connecting piece; 264, guide wheel; 3, driving mechanism; 31, driving unit; 32, driving connection unit; 311, transmission shaft; 312, driving piece; 313, eccentric wheel; 321, guide piece. DETAILED DESCRIPTION

[0035] In order to facilitate the understanding of the utility model, the utility model will be described more fully below with reference to the relevant drawings. The preferred embodiments of the utility model are shown in the drawings. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein.

[0036] As Figures 1 to 4 ​As shown, the embodiment provides a cylindrical battery sealing device, which comprises a conveying mechanism 1 located above a support platform, a sealing mechanism 2, and a driving mechanism 3 located below the support platform. The conveying mechanism 1 comprises an intermittent battery conveying line 11, and a magnetic carrier is designed on the battery conveying line 11 to carry the battery. The magnetic carrier can adopt a sleeve type carrier, and the battery is vertically placed in the carrier, and the stability of the battery conveying is ensured by the magnetic adsorption. The sealing mechanism 2 comprises a plurality of sealing assemblies arranged in sequence along the conveying direction of the battery. Each sealing assembly comprises a press-sealing unit 24 which is movable up and down and is used for pressing and sealing the battery to be sealed. In the embodiment, according to the battery sealing process, four groups of sealing assemblies are arranged, which comprise a first sealing assembly 21, two second sealing assemblies 22, and a third sealing assembly 23 arranged in sequence along the conveying direction of the battery. The first sealing assembly 21 is used for preliminary press-sealing and sealing of the battery. The second sealing assembly 22 is used for progressive extrusion and shaping of the battery which has been preliminarily press-sealed and sealed, until the battery cap is completely wrapped. The third sealing assembly 23 is used for re-pressing the end of the battery which has been sealed, so as to improve the quality of the sealing and ensure the sealing tightness. The driving mechanism 3 comprises a driving unit 31 and a driving connection unit 32 connected with each sealing assembly one by one. The driving unit 31 can drive the driving connection unit 32 to move up and down, so as to drive the press-sealing unit 24 to move up and down.

[0037] The cylindrical battery sealing device of the embodiment designs the number of sealing assemblies according to the number of press-sealing required, and seals the battery by multiple stamping and pressing. The battery conveying line 11 adopts an intermittent conveying line, and the magnetic carrier is designed on the battery conveying line 11 to carry the battery. A plurality of sealing assemblies are arranged in sequence along the conveying direction of the battery on the battery conveying line 11, and the battery conveyed to the press-sealing position of each sealing assembly is pressed and sealed. Specifically, the sealing assembly is provided with a press-sealing unit 24, and each press-sealing unit 24 is driven and connected with the driving unit 31 through the corresponding driving connection unit 32, so that a plurality of press-sealing units 24 are driven and moved up and down synchronously or asynchronously by one driving unit 31, and the press-sealing of the battery is completed. Through the design of a plurality of separate press-sealing assemblies, the yield of the battery sealing is effectively improved. At the same time, one power source is used for driving, the integration of the device is improved, the number of parts is reduced, and the stability of the device is improved.

[0038] As shown in the drawings, Figure 2 and Figure 3As shown, the pressing and sealing unit 24 includes a mounting base 241 above the battery conveying line 11, a pressing and sealing member 242 provided on the side of the mounting base 241 facing the battery conveying line 11, and lifting rods 243 connected with the mounting base 241 and the driving connection unit 32. The pressing and sealing member 242 is detachably provided on the mounting base 241, and the pressing and sealing member 242 is replaced according to the size of the battery to improve the versatility of the equipment. The lifting rods 243 are provided in two and symmetrically arranged with the center line of the mounting base 241, and the two lifting rods 243 are connected with the driving connection unit 32 to improve the stability of lifting the mounting base 241 and the uniformity of the pressure applied by the pressing and sealing member 242 to the battery. The first sealing assembly 21, the two second sealing assemblies 22 and the third sealing assembly 23 are synchronously or asynchronously moved up and down by the driving connection unit 32 through the design of lifting rods 243 of different lengths, so as to realize the synchronous or asynchronous lifting of the mounting base 241. In addition, a spring buffer structure is provided on the side of the mounting base 241 facing the battery conveying line 11, that is, when the mounting base 241 drives the pressing and sealing member 242 to descend to press the battery port, the spring is extruded, thereby adjusting the pressing force to a gradual and soft pressure to improve the quality of pressing and sealing.

[0039] As shown in Figure 3 The first sealing assembly 21 is further provided with a pre-pressing member 25 for positioning and pressing the battery to be sealed, and the pre-pressing member 25 is movably arranged on the mounting base 241. The battery may be shaken during conveying or the height of the battery placed in the magnetic attraction carrier may be different due to improper placement, and the battery is in a non-pre-set placement position. In order to ensure uniform pressure and improve the quality of sealing, all batteries need to be at a pre-set sealing height before sealing, so that the port of the battery is at a predetermined sealing position. Therefore, the pre-pressing member 25 is arranged on the mounting base 241, and the pre-pressing member 25 is driven to descend with the descending of the mounting base 241 to make contact with the battery to be sealed in the first sealing assembly 21, so as to drive the battery not in the set position to move downward and adjust the battery to the pre-set placement height. In addition, the pre-pressing member 25 and the mounting base 241 are connected in an elastic manner to prevent the battery port from being deformed by excessive extrusion between the pre-pressing member 25 and the battery, and to avoid affecting the sealing.

[0040] As shown in Figure 3As shown, the first sealing assembly and the second sealing assembly are provided below the pressing unit with a clamping unit 26, which includes a clamping base 262 located on both sides of the battery conveying line 11, two clamping blocks 261 slidingly arranged on the clamping base 262, and a transmission connecting piece 263 rotatably arranged on the clamping base 262, one end of the transmission connecting piece 263 being rotatably connected with the clamping block 261, and the other end being slidingly connected with the driving connecting unit 32, the transmission connecting piece 263 converting the up-down movement of the driving connecting unit 32 into the horizontal movement of the clamping block 261. When the battery conveying line 11 conveys the battery to the pressing position of the first sealing assembly 21 and the second sealing assembly 22, the two clamping blocks 261 are moved towards each other to clamp and position the battery from both sides, so as to ensure the stability of the battery during the pressing process and improve the precision of the battery pressing. In addition, the clamping movement of the clamping block 261 is synchronized with the lifting movement of the pressing piece 242, so as to improve the efficiency of the sealing equipment. In order to realize the synchronization of the clamping movement of the clamping block 261 and the lifting movement of the pressing piece 242, the clamping block 261 and the pressing piece 242 adopt the same driving source, that is, the clamping block 261 is connected with the driving connecting unit 32 through the transmission connecting piece 263, the middle position of the transmission connecting piece 263 is rotatably arranged on the clamping base 262 through a rotating shaft, one end of the transmission connecting piece 263 is rotatably connected with the clamping block 261, and the other end is slidingly connected with the driving connecting unit 32, the driving connecting unit 32 drives the transmission connecting piece 263 to reciprocate around the rotating shaft at the middle position when it is lifted, thereby driving the clamping block to move horizontally. In addition, the pressing piece 242 of the third sealing assembly 23 adopts a sealing sleeve with a positioning groove, and the pressing piece 242 can wrap around the end of the battery when it is pressed, so that the clamping unit 26 is not needed.

[0041] As shown in FIG. 1, the sealing equipment comprises a battery conveying line 11, a first sealing assembly 21, a second sealing assembly 22, a third sealing assembly 23, and a driving connecting unit 32. Figure 4 As shown, the driving connecting unit 32 comprises a guide piece 321, and the end of the transmission connecting piece 263 connected with the driving connecting unit 32 is provided with a guide wheel 264, which is in rolling contact with the guide piece 321. A guide path is formed on the guide piece 321, and a tension spring is arranged to make the guide wheel 264 of the transmission connecting piece 263 tightly contact with the guide piece 321. During the lifting of the guide piece 321, the guide wheel 264 relatively rolls along the guide path, so that the transmission connecting piece 263 reciprocates around the rotating shaft at the middle position, thereby driving the clamping block 261 to move horizontally, and converting the up-down movement of the driving connecting unit 32 into the horizontal movement of the clamping block 261. Specifically, when the driving connecting unit 32 is lowered, the guide piece 321 drives the transmission connecting piece 263 to rotate and drive the clamping block 261 to move towards each other to clamp and position the battery, and vice versa, when the driving connecting unit 32 is lifted, the guide piece 321 drives the transmission connecting piece 263 to reverse and drive the clamping block 261 to separate to release the battery.

[0042] As shown in FIG. 1, the sealing equipment comprises a battery conveying line 11, a first sealing assembly 21, a second sealing assembly 22, a third sealing assembly 23, and a driving connecting unit 32. Figure 4As shown, the driving unit 31 comprises a transmission shaft 311 rotationally connected with the driving connection unit 32, and a driving member 312 driving the transmission shaft 311 to rotate, the transmission shaft 311 is provided with an eccentric wheel 313 corresponding to the driving connection unit 32, the center axes of adjacent eccentric wheels 313 are not collinear, in this embodiment, the four eccentric wheels 313 corresponding to the first sealing assembly 21, the two second sealing assemblies 22, and the third sealing assembly 23 are not collinear, and the driving connection unit 32 is sleeved on the outer periphery of the eccentric wheel 313. The driving unit 31 can be driven by a motor, that is, the driving member 312 can be a speed reducer motor connected with the transmission shaft 311 through a shaft coupling, the transmission shaft is sleeved with an eccentric wheel 313 corresponding to the driving connection unit 32, the driving connection unit 32 is sleeved on the eccentric wheel 313 through a bearing, by adjusting the relative positions of the center axes of the eccentric wheels, the driving member 312 drives the transmission shaft 311 to rotate, and the driving connection unit 32 is driven to move asynchronously up and down by the up and down fluctuation of the eccentric wheel 313 rotating around the axis of the transmission shaft 311, thereby realizing the asynchronous pressing of the first sealing assembly 21, the two second sealing assemblies 22, and the third sealing assembly 23, avoiding uneven stress caused by synchronous pressing, and improving the sealing quality.

[0043] As shown in Figure 1 and Figure 2 As shown, the conveying mechanism 1 further comprises a indexing connection unit 12, which is composed of a cam separator and an indexing turntable, the battery conveying line 11 adopts a ring line, the battery conveying line 11 is clamped on the outer periphery of the indexing turntable, and the intermittent rotation of the cam separator drives the intermittent movement of the battery conveying line 11. The cam separator is connected with the transmission shaft 311 through a belt or a chain, so that the rotation of the transmission shaft 311 drives the rotation of the cam separator, realizing the use of only one power source for the entire device.

[0044] In addition, the device further comprises an automatic feeding mechanism and an automatic discharging mechanism, the automatic feeding mechanism and the automatic discharging mechanism are located on the side opposite to the sealing mechanism 2 with respect to the ring-shaped battery conveying line 11, the automatic feeding mechanism realizes the automatic placement of the battery to be sealed on the magnetic carrier of the battery conveying line 11, the battery conveying line 11 conveys the battery to be sealed to the sealing mechanism 2 to complete the sealing operation of the battery, and then the battery conveying line 11 conveys the sealed battery to the automatic discharging mechanism, which automatically takes away the battery. In this embodiment, the specific structure of the automatic feeding mechanism and the automatic discharging mechanism is not limited, and a clamping module or a mechanical hand can be used, the beats of each mechanism of the entire device are consistent, and the intermittent step transport interval of the battery conveying line 11 is matched, so as to realize the coordinated and unified action between each mechanism of the entire device.

[0045] In the description of the utility model, it is understood that the terms such as '' upper '', '' lower '', '' front '', '' rear '', '' left '', '' right '', '' vertical '', '' horizontal '', '' top '', '' bottom '', '' inner '', '' outer '' and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0046] In addition, the terms '' first '' and '' second '' and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated.

[0047] Although the embodiments of the utility model have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A cylindrical battery sealing device, characterized in that, include: A conveying mechanism, including a battery conveyor line, for loading and conveying batteries; A sealing mechanism, comprising a plurality of sealing components arranged sequentially along the battery conveying direction, each sealing component comprising a pressing unit that can move up and down, the pressing unit being used to press down and seal the battery to be sealed; The driving mechanism includes a driving unit and a driving connection unit that is connected to the sealing assembly one by one. The driving unit can drive the driving connection unit to move up and down to drive the sealing unit to move up and down.

2. The cylindrical battery sealing device according to claim 1, characterized in that, The sealing unit includes a mounting base located above the battery delivery line, a sealing member disposed on the side of the mounting base facing the battery delivery line, and a lifting rod connected to the mounting base and the drive connection unit.

3. The cylindrical battery sealing device according to claim 2, characterized in that, The sealing mechanism includes a first sealing component, at least one second sealing component, and a third sealing component arranged sequentially along the battery conveying direction. The first sealing component, at least one second sealing component, and the third sealing component sequentially complete the sealing operation of the battery to be sealed.

4. The cylindrical battery sealing device according to claim 3, characterized in that, The first sealing assembly is further provided with a pre-compression component for pressing and positioning the battery to be sealed, and the pre-compression component is movably mounted on the mounting base.

5. The cylindrical battery sealing device according to claim 3, characterized in that, The first sealing assembly and the second sealing assembly further include a clamping unit for clamping and positioning the battery, the clamping unit including clamping blocks that are relatively movably disposed on both sides of the battery delivery line.

6. The cylindrical battery sealing device according to claim 5, characterized in that, The clamping unit also includes clamping bases located on both sides of the battery delivery line, and a transmission connector rotatably disposed on the clamping base. One end of the transmission connector is rotatably connected to the clamping block, and the other end is slidably connected to the drive connection unit. The transmission connector converts the up-and-down movement of the drive connection unit into the horizontal movement of the clamping block.

7. The cylindrical battery sealing device according to claim 6, characterized in that, The drive connection unit includes a guide member, and a guide wheel is provided at one end of the transmission connection member that is connected to the drive connection unit. The guide wheel and the guide member are in rolling cooperation.

8. The cylindrical battery sealing device according to claim 1, characterized in that, The drive unit includes a transmission shaft rotatably connected to the drive connection unit, and a drive component that drives the transmission shaft to rotate.

9. The cylindrical battery sealing device according to claim 8, characterized in that, The drive shaft is provided with eccentric wheels that correspond one-to-one with the drive connection units. The drive connection units are sleeved on the outer circumference of the eccentric wheels. The central axes of adjacent eccentric wheels are not collinear, so that multiple drive connection units can move up and down asynchronously.

10. The cylindrical battery sealing device according to claim 8, characterized in that, The conveying mechanism further includes an indexing connection unit, which is connected to the drive shaft and the battery conveying line. The drive shaft drives the battery conveying line to move intermittently through the indexing connection unit.

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