Lithium battery cap packaging machine

Abstract

The utility model discloses a lithium battery cap packaging machine which comprises a frame body, placing discs are arranged on the upper surface of a lower supporting plate of the frame body, lithium battery clamping plates are connected into sliding grooves in the upper surfaces of the placing discs in a sliding mode, cap packaging pressing plates capable of moving up and down are arranged at the lower end of an upper supporting plate of the frame body, and the lithium battery cap packaging machine further comprises a limiting mechanism. And the limiting mechanism comprises limiting rotating plates and torsional springs, the limiting rotating plates are rotationally connected to the upper ends of the rotating grooves of the lithium battery clamping plates through rotating shafts correspondingly, the outer arc surfaces of the rotating shafts are movably sleeved with the torsional springs correspondingly, and the ends, close to the centers of the lithium battery clamping plates, of the torsional springs are fixedly connected with the limiting rotating plates correspondingly. Through cooperation of the limiting rotating plate and the lithium battery clamping plate, feeding and discharging of lithium batteries are facilitated through elastic clamping, meanwhile, the firmness of the position in the lithium battery cap packaging process is kept through rigid clamping, position shaking in the lithium battery cap packaging process can be avoided, and the lithium battery cap packaging quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery cap packaging technology, specifically a lithium battery cap packaging machine. Background Technology

[0002] Lithium-ion battery cap packaging refers to installing a cap on top of a lithium-ion battery. This cap typically contains several key components, such as a PTC element, CID, and Vent, to provide multiple protection functions. It also covers the positive and negative electrodes of the lithium-ion battery with a protective layer to prevent external oxidation or electrolyte evaporation, ensuring the safety and battery life during use. In existing technology, the authorized publication number CN... 221766806U proposes a lithium battery capping machine, including a worktable and a pressing assembly. The pressing assembly is located on the top of the worktable, and multiple clamping assemblies are installed on the top of the worktable. The clamping assembly includes a mounting box fixedly installed with the worktable. Multiple clamping plates are slidably provided on the top of the mounting box. Oil cylinders are fixedly provided on the sides of the mounting box corresponding to the positions of the multiple clamping plates. Piston rods are slidably provided inside the oil cylinders. The piston rods are connected to the clamping plates. The lithium battery can be quickly clamped by a flexible elastic pad, which facilitates the loading and unloading of the lithium battery. However, the deformation range of the elastic pad is small, and the loading and unloading process of the lithium battery will still be obstructed. At the same time, the lithium battery is prone to shaking during the capping process, which affects the quality of the capping. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the existing defects and provide a lithium battery cap packaging machine. While using elastic clamping to facilitate the loading and unloading of lithium batteries, it uses rigid clamping to maintain the firmness of the lithium battery cap during the packaging process, avoids the position shaking of the lithium battery cap during the packaging process, improves the quality of lithium battery cap packaging, and can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a lithium battery cap packaging machine, comprising a frame, wherein a placement tray is provided on the upper surface of the lower support plate of the frame, and a lithium battery clamping plate is slidably connected in the groove on the upper surface of the placement tray, and a cap packaging pressure plate that can move up and down is provided at the lower end of the upper support plate of the frame, and further comprising a limiting mechanism.

[0005] Limiting mechanism: includes limiting rotating plates and torsion springs. The limiting rotating plates are rotatably connected to the upper end of the rotating groove of the lithium battery clamping plate via rotating shafts. Torsion springs are movably sleeved on the outer arc surface of the rotating shafts. One end of the torsion spring near the center of the lithium battery clamping plate is fixedly connected to the limiting rotating plate, and the other end of the torsion spring is fixedly connected to the lithium battery clamping plate. The lithium battery clamping plates are all connected to the capping sealing plate. Through the cooperation of the limiting rotating plates and the lithium battery clamping plates, the elastic clamping facilitates the loading and unloading of lithium batteries, while the rigid clamping maintains the firmness of the lithium battery capping process. Compared with the method of limiting the lithium battery by the deformation of the elastic pad, it can avoid the position shaking of the lithium battery capping process and improve the quality of lithium battery capping.

[0006] Furthermore, the limiting mechanism also includes an adjusting turntable, which is rotatably connected to the inside of the placement plate via a rotating column. The upper surface of the adjusting turntable is provided with a planar spiral groove. The lower sliders of the three lithium battery clamps located on the same placement plate are slidably connected to the inside of a planar spiral groove, so that the three lithium battery clamps on the same placement plate move at the same amplitude.

[0007] Furthermore, the limiting mechanism also includes worm gears and worms. The worm is rotatably connected between the left and right inner walls of the lower support plate of the frame, and the worm gears are respectively located at the lower end of the rotating column of the adjusting turntable. The worm gears are meshed with the worm, so that all lithium battery clamps move synchronously.

[0008] Furthermore, the limiting mechanism also includes gears and rack plates. The gears are respectively disposed at the left and right ends of the worm gear body, and the rack plates are respectively slidably connected in the guide grooves at the rear end of the frame. The rack plates are all connected to the cap sealing plate, and the movement of the cap sealing plate provides power for the movement of the lithium battery clamping plate.

[0009] Furthermore, the limiting mechanism also includes linkage pins, which are respectively disposed on the left and right ends of the rear side of the cap packaging plate. The upper end of the front surface of the rack plate is provided with insertion holes. The linkage pins are inserted into the insertion holes corresponding to the longitudinal position to change the connection position between the cap packaging plate and the rack plate and adjust the movement range of the lithium battery clamp.

[0010] Furthermore, the rear end of the outer side of the rack plate is vertically slidably connected to a sliding frame. The connecting column on the rear side of the sliding frame extends out of the frame body. An adjustment plate is provided between the ends of the two connecting columns. An adjustment screw is rotatably connected to the rear end of the frame body. The adjustment screw is threadedly connected to the screw hole of the adjustment plate to limit the front and rear position of the rack plate.

[0011] Furthermore, a PLC controller is provided at the left end of the frame. The input terminal of the PLC controller is electrically connected to an external power source. Electric push rods are provided in the mounting holes on the surface of the support plate on the frame. The cap sealing plate is set between the lower ends of the telescopic ends of the two electric push rods. The input terminal of the electric push rod is electrically connected to the output terminal of the PLC controller to control the start and stop of the overall device.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: This lithium battery cap packaging machine has the following advantages:

[0013] By combining the limiting plate and the lithium battery clamp, the elastic clamp facilitates the loading and unloading of lithium batteries, while the rigid clamp maintains the stability of the lithium battery cap during the sealing process. Compared with the method of limiting the lithium battery by the deformation of the elastic pad, this method can avoid the positional shaking of the lithium battery cap during the sealing process and improve the quality of the lithium battery cap sealing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the side cross-section of the placement tray of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the limiting rotating plate of this utility model;

[0017] Figure 4 This is a schematic diagram of the rear structure of the overall device of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the overall device of this utility model after a partial explosion.

[0019] Figure 6 This is a schematic diagram of the structure of the adjusting screw of this utility model from a side view.

[0020] Figure 7 This is a top view of the rack plate of this utility model.

[0021] In the diagram: 1. Frame, 2. Placement tray, 3. Lithium battery clamping plate, 4. Cap sealing plate, 5. Limiting mechanism, 51. Limiting rotating plate, 52. Torsion spring, 53. Linkage insert, 54. Adjusting turntable, 55. Worm gear, 56. Worm, 57. Gear, 58. Rack plate, 6. Insertion hole, 7. Sliding frame, 8. Adjusting plate, 9. Adjusting screw, 10. PLC controller, 11. Electric push rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-7 This embodiment provides a technical solution: a lithium battery capping machine, including a frame 1, which provides support for the setting of lithium battery capping components. The upper surface of the lower support plate of the frame 1 is respectively provided with placement trays 2, providing support for the placement of lithium batteries. Lithium battery clamping plates 3 are slidably connected in the grooves on the upper surface of the placement trays 2. The three lithium battery clamping plates 3 on the same placement tray 2 are arranged in a ring. The lithium battery is rigidly clamped by the relative movement of the three lithium battery clamping plates 3 on the same placement tray 2 at the same amplitude. The lower end of the upper support plate of the frame 1 is respectively provided with capping pressing plates 4 that can move up and down. The downward movement of 4 encapsulates the lithium battery with a cap. A PLC controller 10 is located at the left end of the frame 1. The input of the PLC controller 10 is electrically connected to an external power source to control the start and stop of the entire device. Electric push rods 11 are installed in the mounting holes on the surface of the upper support plate of the frame 1. The cap encapsulation plate 4 is located between the lower ends of the telescopic ends of the two electric push rods 11. The input of the electric push rod 11 is electrically connected to the output of the PLC controller 10. The two electric push rods 11 are connected in series to ensure the synchronous start and stop of the two electric push rods 11, providing power for the up and down movement of the cap encapsulation plate 4. A limit mechanism 5 is also included.

[0024] Limiting mechanism 5 includes a limiting rotating plate 51 and a torsion spring 52. The limiting rotating plate 51 is rotatably connected to the upper end of the rotating groove of the lithium battery clamping plate 3 via a rotating shaft. The outer arc surface of the rotating shaft is movably fitted with a torsion spring 52. One end of the torsion spring 52 near the center of the lithium battery clamping plate 3 is fixedly connected to the limiting rotating plate 51, and the other end of the torsion spring 52 is fixedly connected to the lithium battery clamping plate 3. The lithium battery clamping plates 3 are all connected to the cap sealing pressure plate 4. When the lithium battery is placed on the upper surface of the placement tray 2, the pressure from the lithium battery overcomes the torque of the torsion spring 52, pushing the limiting rotating plate 51 to rotate. Under the torque of the torsion spring 52, the three lithium battery clamping plates 3 on the same placement tray 2 elastically clamp the lithium battery, quickly positioning the lithium battery. When subsequent lithium batteries of the same size are placed... During capping, the lithium battery is simply placed on the surface of the placement tray 2, and the limiting rotating plate 51 provides elastic clamping for the lithium battery, making continuous capping of the same lithium battery more convenient and faster. The limiting mechanism 5 also includes an adjusting turntable 54, which is rotatably connected to the inside of the placement tray 2 via a rotating column. The upper surface of the adjusting turntable 54 is provided with a planar spiral groove. The lower sliders of the three lithium battery clamping plates 3 located on the same placement tray 2 are slidably connected to the inside of a planar spiral groove. When the adjusting turntable 54 rotates, the lower sliders of the lithium battery clamping plates 3 slide in the planar spiral groove, so that the three lithium battery clamping plates 3 on the same placement tray 2 move closer to each other with the same amplitude. The limiting mechanism 5 also includes a worm gear 55 and a worm 56, with the worm 56 rotatably connected to the lower support of the frame 1. Between the left and right inner walls of the plate, worm gears 55 are respectively set at the lower end of the rotating column of the adjusting turntable 54. The worm gears 55 are all meshed with the worm 56. When the worm 56 rotates, the meshing connection between the worm 56 and the worm gears 55 causes all the adjusting turntables 54 to rotate. The limiting mechanism 5 also includes gears 57 and rack plates 58. The gears 57 are respectively set at the left and right ends of the worm 56. The rack plates 58 are slidably connected in the guide grooves at the rear end of the frame 1. A linkage plate is provided between the upper ends of the two rack plates 58, so that the two rack plates 58 move up and down synchronously. The rack plates 58 are all connected to the cap sealing plate 4. The cap sealing plate 4 drives the rack plates 58 to move up and down. The meshing connection between the rack plates 58 and the gears 57 causes the gears 57 to drive the worm. The limiting mechanism 5 also includes linkage pins 53, which are respectively located at the left and right ends of the rear side of the cap sealing plate 4. The upper end of the front surface of the rack plate 58 is provided with insertion holes 6. The linkage pins 53 are inserted into the corresponding insertion holes 6 in the longitudinal position, causing the cap sealing plate 4 and the rack plate 58 to move up and down synchronously. The rear end of the outer side of the rack plate 58 is vertically slidably connected to a sliding frame 7. The connecting post on the rear side of the sliding frame 7 extends out of the frame body 1. An adjusting plate 8 is provided between the ends of the two connecting posts. An adjusting screw 9 is rotatably connected to the rear end of the frame body 1. The adjusting screw 9 is threadedly connected to the screw hole of the adjusting plate 8. Rotating the adjusting screw 9, through the threaded connection between the adjusting screw 9 and the adjusting plate 8, drives the adjusting plate 8 and the sliding frame 7 to move backward.The vertical sliding connection between the sliding frame 7 and the rack plate 58 drives the rack plate 58 to move backward, causing the lower end of the rack plate 58 to disengage from the gear 57 and the upper end to disengage from the linkage pin 53. At this point, the vertical position of the rack plate 58 can be adjusted. Based on the size of the lithium battery, the meshing position of the gear 57 and the rack plate 58 is changed, adjusting the movement of the lithium battery clamp 3. After adjustment, the adjusting screw 9 is rotated in the opposite direction, pushing the rack plate 58 forward to reset. The lower end of the rack plate 58 meshes with the gear 57, and the linkage pin 53 is inserted into the corresponding vertical insertion hole 6. A bellows is provided between the rear side of the adjusting plate 8 and the rotating ring in the rear groove of the adjusting screw 9. The bellows is movably sleeved on the outer arc surface of the adjusting screw 9, providing protection for the adjusting screw 9. During the rotation of the adjusting screw 9, the adjusting screw 9 rotates relative to the rotating ring on its outer arc surface, while the bellows only extends and retracts.

[0025] The working principle of the lithium battery capping machine provided by this utility model is as follows: When capping the lithium battery, the lithium battery is placed on the upper surface of the placement tray 2. Under the pressure of the lithium battery, the torque of the torsion spring 52 is overcome, and the limiting rotating plate 51 is pushed to rotate. Under the torque of the torsion spring 52, the lithium battery is elastically clamped by the three lithium battery clamping plates 3 on the same placement tray 2, and the lithium battery is quickly positioned. Then, the electric push rod 11 is started by the PLC controller 10. The telescopic end of the electric push rod 11 drives the capping plate 4 to move down. During the downward movement of the capping plate 4, the... The linkage pin 53 is inserted into the insertion hole 6, causing the rack plate 58 to move downwards. Through the meshing connection between the rack plate 58 and the gear 57, the gear 57 drives the worm 56 to rotate. Through the meshing connection between the worm 56 and the worm wheel 55, the worm wheel 55 drives the adjusting turntable 54 to rotate. The lower slider of the lithium battery clamp 3 slides within the planar spiral groove, causing the three lithium battery clamps 3 on the same placement tray 2 to approach each other at the same amplitude. When the gear 57 and the rack plate 58 cease meshing, the lithium battery clamps 3 stop moving. At this point, all three lithium battery clamps 3 are in contact with the lithium battery. The three lithium battery clamps on the same placement tray 2 then... 3. A rigid clamp is provided for the lithium battery to ensure its stable position during the pressing process. Then, as the capping plate 4 continues to move downwards, it seals the lithium battery cap. When pressing and sealing lithium batteries of the same size later, simply place the lithium battery on the surface of the placement tray 2, and use the limiting rotating plate 51 to provide elastic clamping. When pressing and sealing lithium batteries of different sizes later, rotate the adjusting screw 9. Through the threaded connection between the adjusting screw 9 and the adjusting plate 8, the adjusting plate 8 and the sliding frame 7 move backwards, utilizing the sliding frame... 7 is vertically slidably connected to the rack plate 58, causing the rack plate 58 to move backward, so that the lower end of the rack plate 58 disengages from the gear 57 and the upper end of the rack plate 58 disengages from the linkage pin 53. At this time, the vertical position of the rack plate 58 can be adjusted. According to the size of the lithium battery, the meshing position of the gear 57 and the rack plate 58 is changed, and the movement range of the lithium battery clamp 3 is adjusted. After the adjustment is completed, the adjusting screw 9 is rotated in the opposite direction to push the rack plate 58 forward to reset. The lower end of the rack plate 58 meshes with the gear 57, and the linkage pin 53 is inserted into the corresponding insertion hole 6 in the longitudinal position.

[0026] It is worth noting that the PLC controller 10 disclosed in the above embodiments can be an NX7 model PLC controller, and the electric linear actuator 11 can be freely configured according to the actual application scenario. It is recommended to use an ANT-52 model electric linear actuator. The PLC controller 10 controls the electric linear actuator 11 using methods commonly used in the prior art.

[0027] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A lithium battery capping machine, comprising a frame (1), wherein the upper surface of the lower support plate of the frame (1) is respectively provided with a placement tray (2), and a lithium battery clamping plate (3) is slidably connected in the sliding groove on the upper surface of the placement tray (2), and the lower end of the upper support plate of the frame (1) is respectively provided with a capping pressing plate (4) that can move up and down, characterized in that: It also includes a limiting mechanism (5); Limiting mechanism (5): includes limiting rotating plate (51) and torsion spring (52). The limiting rotating plate (51) is rotatably connected to the upper end of the rotating groove of the lithium battery clamp (3) through a rotating shaft. The outer arc surface of the rotating shaft is movably sleeved with torsion spring (52). One end of the torsion spring (52) near the center of the lithium battery clamp (3) is fixedly connected to the limiting rotating plate (51), and the other end of the torsion spring (52) is fixedly connected to the lithium battery clamp (3). The lithium battery clamp (3) is connected to the cap sealing plate (4) in a transmission manner.

2. The lithium battery cap packaging machine according to claim 1, characterized in that: The limiting mechanism (5) also includes an adjusting turntable (54), which is rotatably connected to the inside of the placement plate (2) via a rotating column. The upper surface of the adjusting turntable (54) is provided with a planar spiral groove, and the lower sliders of the three lithium battery clamps (3) located on the same placement plate (2) are slidably connected to the inside of a planar spiral groove.

3. A lithium battery cap packaging machine according to claim 2, characterized in that: The limiting mechanism (5) also includes a worm wheel (55) and a worm (56). The worm (56) is rotatably connected between the left and right inner walls of the lower support plate of the frame (1). The worm wheel (55) is respectively set at the lower end of the rotating column of the adjusting turntable (54). The worm wheel (55) is meshed with the worm (56).

4. A lithium battery cap packaging machine according to claim 3, characterized in that: The limiting mechanism (5) also includes a gear (57) and a rack plate (58). The gear (57) is respectively set at the left and right ends of the worm (56) rod body, and the rack plate (58) is slidably connected in the guide groove at the rear end of the frame (1). The rack plate (58) is connected to the cap sealing plate (4).

5. A lithium battery cap packaging machine according to claim 4, characterized in that: The limiting mechanism (5) also includes a linkage pin (53), which is respectively set on the left and right ends of the rear side of the cap sealing plate (4). The upper end of the front surface of the rack plate (58) is provided with a hole (6), and the linkage pin (53) is inserted into the hole (6) corresponding to the longitudinal position.

6. A lithium battery cap packaging machine according to claim 4, characterized in that: The outer rear end of the rack plate (58) is vertically slidably connected to a sliding frame (7). The connecting column on the rear side of the sliding frame (7) passes through the interior of the frame body (1). An adjusting plate (8) is provided between the ends of the two connecting columns. An adjusting screw (9) is rotatably connected to the rear end of the frame body (1). The adjusting screw (9) is threadedly connected to the screw hole of the adjusting plate (8).

7. A lithium battery cap packaging machine according to claim 1, characterized in that: The left end of the frame (1) is provided with a PLC controller (10). The input end of the PLC controller (10) is electrically connected to an external power source. Electric push rods (11) are provided in the mounting holes on the surface of the upper support plate of the frame (1). The cap sealing plate (4) is set between the lower ends of the telescopic ends of the two electric push rods (11). The input end of the electric push rod (11) is electrically connected to the output end of the PLC controller (10).

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