Lithium-manganese one-time button cell packaging equipment

Through the mobile motor drive and material conveying components of the lithium manganese primary buckle battery packaging equipment, the precise transportation and riveting of the negative electrode shell are achieved, solving the problem of the negative electrode shell deviating from the positive electrode shell and reducing the battery processing scrap rate.

CN120376676APending Publication Date: 2025-07-25CHANGZHOU YUFENG BATTERY CO LTD
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Patent Information

Application Number
CN202510634844.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-16
Publication Date
2025-07-25

AI Technical Summary

Technical Problem

In the prior art, the negative electrode shell is prone to deviating or falling off the positive electrode shell during placement, resulting in a high scrap rate of buckle battery processing.

Method used

The lithium manganese primary buckle battery packaging equipment is adopted to drive the rectangular block to move the lower mold seat through a mobile motor, place the positive electrode shell and return to position, and use the material conveying component to automatically transport the negative electrode shell to the rivet station, and the negative electrode shell is pressed and riveted on the positive electrode shell through the stamping part, combining the clamping component and the ejection component to achieve multi-angle observation and precise positioning.

Benefits of technology

The processing scrap rate of the buckle battery is reduced, and the relative position error between the negative and positive housings is reduced, and the packaging accuracy and efficiency are improved.

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Abstract

The invention relates to lithium-manganese one-time button cell packaging equipment which comprises a machine base, a frame body is connected to the machine base, a stamping part for stamping a button cell is arranged on the frame body, the output end of the stamping part is connected with an upper die base, a lower die base, a controller and a moving assembly are arranged on the machine base, and the moving assembly comprises a moving motor, a moving lead screw and a rectangular block. A sliding groove is formed in the machine base, the rectangular block is connected to the bottom wall of the lower die base and is in sliding fit with the sliding groove, the movable lead screw is rotationally connected into the sliding groove and is parallel to the sliding groove, the movable lead screw is in threaded fit with the rectangular block, the movable motor is installed at the end of the machine base and is coaxially connected with the movable lead screw, and the movable motor is electrically connected to the controller. The upper die base is provided with a material conveying assembly for conveying the negative electrode shell to the pressing and riveting station, and when the positive electrode shell is placed, the lower die base is located outside the frame body. The method has the effect of reducing the processing rejection rate of the button cell.
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Description

Technical Field

[0001] This application relates to the technical field of button battery processing, and particularly to a primary lithium-manganese button battery packaging device. Background Art

[0002] ‌A primary button battery‌ is a small battery, named after its button-like shape. It is widely used in various small electronic devices, such as watches, calculators, remote controls, etc. A primary button battery is usually non-rechargeable and needs to be replaced with a new battery after one use.

[0003] Refer to Figure 1 , common button batteries include a negative electrode case 01, a negative lithium sheet 011, a separator 012, a positive electrode case 02, a positive electrode sheet 021, and a sealing rubber ring 022. The negative lithium sheet 011 is installed on the negative electrode case 01, and the separator 012 and the positive electrode sheet 021 are installed in the positive electrode case 02 from top to bottom in sequence. The negative electrode case 01 is riveted to the positive electrode case 02, and the sealing rubber ring 022 is arranged between the positive electrode case 02 and the negative electrode case 01. The gap between the negative lithium sheet 011, the positive electrode sheet 021, and the sealing rubber ring 022 is filled with electrolyte. Through the assembly of the above negative electrode case 01 and positive electrode case 02, a device for button battery packaging is required.

[0004] Chinese Patent with publication number CN218513499U discloses a button battery sealer, which includes an upper die assembly, a lower die assembly, and a lifting plate; the upper die assembly is fixedly arranged; one side plate surface of the lifting plate faces the upper die assembly and moves up and down relative to the upper die assembly; the lower die assembly is located directly below the upper die assembly, and as the lifting plate rises and falls, the lower die assembly moves away from or approaches the upper die assembly; mutually cooperating positioning bosses and positioning grooves are respectively arranged on the side surfaces of the lower die assembly opposite to the lifting plate, and the positioning bosses are inserted into the positioning grooves, so that the lower die assembly is movably installed on the lifting plate. Compared with the prior art, the button battery sealer of this patent can improve the convenience of maintenance and extend the service life of the device.

[0005] In view of the above related technologies, in the prior art, it is necessary to place the negative electrode case on the positive electrode case, and finally place the entire battery on the positioning sleeve. By swinging the rocker, the lower die base rises until the negative electrode case is riveted to the positive electrode case. However, during the placement process, the negative electrode case is likely to deviate from or fall off the positive electrode case. At this time, due to the obstruction of the sealer body, the staff can only correct the position of the negative electrode case by looking sideways, and there is a relative position error between the negative electrode case and the positive electrode case, which increases the processing rejection rate of button batteries. Summary of the Invention

[0006] In order to reduce the processing rejection rate of button batteries, this application provides a primary lithium-manganese button battery packaging device.

[0007] The lithium manganese primary button cell packaging equipment provided by this application adopts the following technical solution: A lithium manganese primary button cell packaging equipment, including a machine base, a frame is connected to the machine base, a stamping part for stamping button cells is arranged on the frame, an upper die base is connected to the output end of the stamping part, a lower die base, a controller and a moving component are arranged on the machine base, the moving component includes a moving motor, a moving lead screw and a rectangular block, a sliding groove is arranged on the machine base, the rectangular block is connected to the bottom wall of the lower die base and is slidably matched with the sliding groove, the moving lead screw is rotatably connected in the sliding groove and is arranged parallel to the sliding groove, the moving lead screw is in threaded cooperation with the rectangular block, the moving motor is installed at the end of the machine base and is coaxially connected to the moving lead screw, the moving motor is electrically connected to the controller, and a feeding component for conveying the negative electrode case to the riveting station is arranged on the upper die base. When placing the positive electrode case, the lower die base is located outside the frame.

[0008] By adopting the above technical solution, before packaging, the moving motor is started through the controller to make the moving lead screw rotate, the rectangular block moves, driving the lower die base to move until it is outside the frame. Subsequently, the positive electrode case can be placed on the lower die base. Then, the lower die base is returned to the initial position, and the negative electrode case is conveyed to directly below the upper die base through the feeding component. The negative electrode case is riveted on the positive electrode case through the stamping part, realizing the packaging of the button cell. Before packaging, the lower die base is moved out of the range of the frame, enabling the staff to observe the installation situation of the positive electrode case from multiple angles regardless of the obstruction of the frame. At the same time, the feeding component automatically conveys the negative electrode case to the riveting station. Compared with the prior art, the relative position error between the negative electrode case and the positive electrode case is reduced, and the processing scrap rate of the button cell is lowered.

[0009] Optionally, a placement cavity is arranged in the lower die base, a bearing column is connected in the placement cavity, the top end of the bearing column extends out of the top end of the lower die base, a limiting cylinder is vertically slidably matched on the lower die base, the limiting cylinder is sleeved on the bearing column, and a placement groove is formed between the limiting cylinder and the top end of the bearing column. A limiting ring is connected to the limiting cylinder, and a top spring is sleeved on the bearing column. The top spring is located between the limiting cylinder and the bottom wall of the placement cavity. In the normal state, the limiting ring abuts against the top wall of the placement cavity.

[0010] By adopting the above technical solution, through the cooperation of the limiting cylinder and the top spring, on the one hand, it cooperates with the bearing column to form a placement groove for restricting the positive electrode case, on the other hand, it is used to buffer the impact of the stamping part on the positive electrode case, and on the other hand, by pressing the limiting cylinder, the placement angle of the positive electrode case can be easily adjusted.

[0011] Optionally, an ejection assembly is provided on the lower die base. The ejection assembly includes a driving rod, a driving bevel gear, a driven bevel gear, a limiting block, and an ejection rod. The ejection rod is vertically slidably fitted between the pressure-bearing column and the lower die base. An installation groove is formed in the lower die base at a position corresponding to the lower side of the placement cavity. The driven bevel gear is rotatably connected to the top wall of the installation groove and is in threaded cooperation with the bottom of the ejection rod. The limiting block is connected to the lower die base. A limiting groove is formed in the ejection rod, and the limiting block is slidably fitted with the limiting groove. The driving rod is horizontally rotatably connected in the installation groove. The driving bevel gear is connected to the end of the driving rod and meshes with the driven bevel gear.

[0012] By adopting the above technical solution, when the positive electrode case is skewed in the limiting cylinder, if the positive electrode case rubs against the inner wall of the limiting cylinder and cannot move, and at this time if the limiting cylinder is pressed, there will be friction between the limiting cylinder and the positive electrode case for a period of time, and there is a possibility of wear of the positive electrode case. At this time, a means for properly removing the positive electrode case is needed. By rotating the driving rod, the driving bevel gear rotates, driving the driven bevel gear to rotate. Since the ejection rod is in threaded cooperation with the driven bevel gear and is slidably fitted with the limiting block, the ejection rod rises from its original state to change the angle of the positive electrode case in the limiting cylinder, realizing the removal of the positive electrode case without wear.

[0013] Optionally, the material conveying assembly includes a material conveying shell, a material discharging cylinder, and a pushing cylinder. The material conveying shell is installed on the upper die base. A material conveying hole is formed in the material conveying shell at a position corresponding to directly below the upper die base. The diameter of the material conveying hole is the same as the inner diameter of the limiting cylinder. A material conveying channel is provided in the material conveying shell. The material discharging cylinder is vertically connected to the material conveying shell and is slidably fitted with the frame body. The material discharging cylinder is communicated with the material conveying channel. The pushing cylinder is connected to the end of the material conveying shell and is arranged in a straight line with the material discharging cylinder and the material conveying hole. The pushing cylinder is electrically connected to the controller. A clamping assembly for clamping the negative electrode case is provided in the material conveying shell at a position corresponding to the material conveying hole.

[0014] By adopting the above technical solution, when conveying the negative electrode case, the negative electrode cases are stacked in the material discharging cylinder, and the lowermost negative electrode case falls into the material conveying channel. The pushing cylinder is started to quickly move the negative electrode case directly below the upper die base. At this time, the clamping assembly is used to clamp the negative electrode case to restrict the negative electrode case, realizing the effect of conveying the negative electrode case. During riveting, the upper die base descends, driving the material conveying shell to descend. The material conveying shell presses the limiting cylinder, and the limiting cylinder descends. At this time, the material conveying hole replaces the limiting cylinder to restrict the positive electrode case until the negative electrode case is riveted on the positive electrode case. Since the clamping assembly clamps the negative electrode case throughout the process, the button cell rises with the material conveying shell after encapsulation.

[0015] Optionally, the clamping assembly includes a clamping arc block, a clamping spring and a connecting rod, two clamping arc blocks are arranged in the feed shell, the two clamping arc blocks are arranged opposite to each other, a supporting arc surface is arranged on the inner ring wall of the clamping arc block, and a guiding arc surface is arranged at the end of the clamping arc block facing the discharge barrel, a plurality of connecting rods are connected to the clamping arc block, the connecting rod is slidably matched with the feed shell, and the clamping spring is sleeved on the connecting rod and is located between the clamping arc block and the inner side wall of the feed shell.

[0016] By adopting the above technical solution, when clamping the negative electrode shell, the negative electrode shell is moved by the pushing cylinder until the negative electrode shell hits the guiding arc surface, so that the two clamping arc blocks move, and the clamping spring is compressed until the negative electrode shell moves to just below the lower die seat. At this time, the two clamping arc blocks are moved in the opposite direction by the force of the ejection spring until they hit the negative electrode shell, thereby achieving the effect of clamping the negative electrode shell.

[0017] Optionally, an L-plate is connected to the feed shell, and the L-plate is slidably matched with the upper mold base. The upper mold base is connected to an upper retaining ring and a lower retaining ring in sequence from top to bottom, and the L-plate is located between the upper retaining ring and the lower retaining ring. A counterweight block is installed on the feed shell, and the gravity of the counterweight block is greater than the limit elastic force of the ejection spring. In normal state, the L-plate contacts the lower retaining ring.

[0018] By adopting the above technical solution, after stamping, since the clamping arc block is always in the state of clamping the negative electrode shell, the button battery after stamping rises with the feeding shell. At this time, the button battery is partially located in the feeding shell, which increases the difficulty of unloading the button battery. When unloading, the feeding shell is raised to make the L plate contact the upper retaining ring. In this process, the button battery rises with the feeding shell and contacts the bottom end of the upper die seat, so that the button battery is separated from the two clamping arc blocks, and the button battery is unloaded.

[0019] Optionally, folded dust covers are connected between both ends of the sliding groove and the lower mold base, and the two dust covers and the lower mold base cover the sliding groove.

[0020] By adopting the above technical solution, the dust cover is used to prevent dust or impurities from entering the sliding groove, and can also assist in buffering the falling button battery.

[0021] Optionally, both ends of the sliding groove are connected with anti-collision blocks, and the anti-collision blocks are made of rubber material.

[0022] By adopting the above technical solution, the anti-collision block is used to buffer the impact force of the movement of the rectangular block, thereby reducing the possibility of the rectangular block being damaged by colliding with the end of the sliding groove.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. Before encapsulation, start the moving motor through the controller to rotate the moving lead screw, move the rectangular block, drive the lower die base to move until it is outside the frame. Subsequently, the positive electrode case can be placed on the lower die base, and then the lower die base is returned to the initial position. The negative electrode case is conveyed to directly below the upper die base through the feeding component, and the negative electrode case is riveted to the positive electrode case through the stamping part, realizing the encapsulation of the button cell. Before encapsulation, moving the lower die base out of the frame range enables the operator to observe the installation of the positive electrode case from multiple angles without being obstructed by the frame. At the same time, the feeding component automatically conveys the negative electrode case to the riveting station. Compared with the prior art, the relative position error between the negative electrode case and the positive electrode case is reduced, and the processing rejection rate of the button cell is lowered; 2. When conveying the negative electrode case, stack the negative electrode cases in the feeding cylinder, and the lowermost negative electrode case drops into the feeding channel. Start the pushing cylinder to quickly move the negative electrode case directly below the upper die base. At this time, use the clamping component to clamp the negative electrode case to restrict it, achieving the effect of conveying the negative electrode case. During riveting, the upper die base descends, driving the feeding shell to descend. The feeding shell presses against the limiting cylinder, and the limiting cylinder descends. At this time, the feeding hole replaces the limiting cylinder to restrict the positive electrode case until the negative electrode case is riveted to the positive electrode case. Since the clamping component clamps the negative electrode case throughout the process, the button cell rises with the feeding shell after encapsulation. Description of the Drawings

[0024] Figure 1 is a cross-sectional view showing the structure of a button cell in the prior art.

[0025] Figure 2 is a schematic diagram of the overall structure of the encapsulation device in the embodiment of the present application.

[0026] Figure 3 is a schematic diagram of the structure of the upper die base and the feeding component in the embodiment of the present application.

[0027] Figure 4 is a cross-sectional view showing the structure of the feeding component in the embodiment of the present application.

[0028] Figure 5 is a cross-sectional view showing the structure of the clamping component in the embodiment of the present application.

[0029] Figure 6 is a schematic diagram of the structure of the clamping component in the embodiment of the present application.

[0030] Figure 7 is a cross-sectional view showing the structure of the moving component in the embodiment of the present application.

[0031] Figure 8 is a cross-sectional view showing the structure of the lower die base and the ejecting component in the embodiment of the present application.

[0032] Explanation of reference numerals: 01, negative electrode shell; 011, negative electrode lithium sheet; 012, diaphragm; 02, positive electrode shell; 021, positive electrode sheet; 022, sealing rubber ring; 1, machine base; 11, frame; 12, stamping part; 13, upper die base; 131, upper retaining ring; 132, lower retaining ring; 14, controller; 15, sliding groove; 151, anti-collision block; 16, dust cover; 2, feeding assembly; 21, feeding shell; 211, L plate; 212, feeding hole; 213, counterweight block; 22, discharge barrel; 23, push cylinder ;3. Clamping assembly;31. Clamping arc block;311. Supporting arc surface;312. Guide arc surface;32. Clamping spring;33. Connecting rod;4. Lower die seat;41. Placement cavity;42. Pressure-bearing column;43. Limiting cylinder;431. Limiting ring;44. Ejector spring;45. Placement groove;5. Moving assembly;51. Moving motor;52. Moving screw rod;53. Rectangular block;6. Ejector assembly;61. Driving rod;62. Active bevel gear;63. Driven bevel gear;64. Limiting block;65. Ejector rod. DETAILED DESCRIPTION

[0033] The following is combined with Figures 2 - 8 This application is described in further detail.

[0034] The present application embodiment discloses a lithium manganese primary button battery packaging device. Figure 2 The lithium manganese primary button battery packaging device includes a base 1, a frame 11 is fixedly connected to the base 1, a stamping part 12 is arranged on the frame 11, the stamping part 12 is a hydraulic cylinder, and an upper die base 13 is fixedly connected to the output end of the stamping part 12. A controller 14 is fixedly connected to the base 1, and the stamping part 12 is electrically connected to the controller 14.

[0035] Reference Figure 3 , Figure 4 and Figure 5 , a feeding assembly 2 is arranged on the upper die base 13, and the feeding assembly 2 includes a feeding shell 21, a discharge barrel 22 and a pushing cylinder 23. An upper baffle ring 131 and a lower baffle ring 132 are fixedly connected to the upper die base 13, and the upper baffle ring 131 is located above the lower baffle ring 132. An L plate 211 is fixedly connected to the feeding shell 21, and the L plate 211 is sleeved on the upper die base 13 and located between the upper baffle ring 131 and the lower baffle ring 132. The feeding shell 21 is arranged horizontally, and a feeding hole 212 is opened at a position corresponding to the position directly below the upper die base 13. Two fixed blocks are fixedly connected in the feeding shell 21, and a feeding channel is formed between the two fixed blocks, and the feeding channel is aligned with the feeding hole 212. A placement frame is fixedly connected to the feeding shell 21, and a counterweight block 213 is placed in the placement frame.

[0036] Reference Figure 2 , Figure 4 and Figure 5, the material discharging cylinder 22 is vertically fixedly connected to the material conveying shell 21 and is in sliding fit with the frame body 11, and the material discharging cylinder 22 communicates with the material conveying channel. The pushing cylinder 23 is fixedly connected to the end of the material conveying shell 21. The material discharging cylinder 22 is located between the material conveying hole 212 and the pushing cylinder 23, and both the material conveying hole 212 and the material discharging cylinder 22 are on the output path of the pushing cylinder 23. The pushing cylinder 23 is electrically connected to the controller 14.

[0037] Refer to Figure 5 and Figure 6 , at the position corresponding to the material conveying hole 212 in the material conveying shell 21, a clamping component 3 is arranged. The clamping component 3 includes a clamping arc block 31, a clamping spring 32 and a connecting rod 33. Two clamping arc blocks 31 are arranged in the material conveying shell 21, and the two material conveying shells 21 are arranged oppositely. A supporting arc surface 311 is arranged on the inner ring wall of the clamping arc block 31, and a guiding arc surface 312 is arranged at the end of the clamping arc block 31 facing the material discharging cylinder 22. A number of connecting rods 33 are fixedly connected to the clamping arc block 31. In this embodiment, two connecting rods 33 are taken as an example. The connecting rods 33 are horizontally slidably fitted on the side wall of the material conveying shell 21, and a stop block is fixedly connected to the end of the connecting rod 33. The clamping spring 32 is sleeved on the connecting rod 33 and is located between the side wall of the material conveying shell 21 and the clamping arc block 31.

[0038] When transporting the negative electrode shell 01, stack the negative electrode shells 01 in the material discharging cylinder 22, start the pushing cylinder 23 through the controller 14, so that the negative electrode shell 01 moves along the material conveying channel. During this process, the negative electrode shell 01 touches the guiding arc surface 312, so that the two clamping arc blocks 31 move, and the clamping spring 32 is compressed. Until the negative electrode shell 01 reaches directly below the upper die base 13, the clamping arc block 31 moves reversely under the action of the clamping spring 32 to clamp the negative electrode shell 01, realizing the positioning and conveying effect of the negative electrode shell 01.

[0039] Refer to Figure 1 and Figure 7, a lower die holder 4 and a moving component 5 are arranged on the machine base 1, and a connecting seat is fixedly connected to the bottom wall of the lower die holder 4. The moving component 5 includes a moving motor 51, a moving lead screw 52 and a rectangular block 53. A sliding groove 15 is arranged on the machine base 1, the rectangular block 53 is fixedly connected to the bottom wall of the connecting seat and is in sliding fit with the sliding groove 15. The moving lead screw 52 is rotatably connected in the sliding groove 15 and is in threaded fit with the rectangular block 53. The moving motor 51 is installed on the machine base 1 and is coaxially connected to the moving lead screw 52, and the moving motor 51 is electrically connected to the controller 14. A dust-proof cover 16 arranged in a folded manner is fixedly connected between the rectangular block 53 and the two end walls of the sliding groove 15. The dust-proof cover 16 is a bellows-type dust-proof cover, and the two dust-proof covers 16 cooperate with the lower die holder 4 to cover the sliding groove 15. The dust-proof cover 16 is used to prevent dust and impurities from entering the sliding groove 15. A plurality of anti-collision blocks 151 are fixedly connected to both ends of the sliding groove 15. In this embodiment, two are taken as an example. The anti-collision blocks 151 are made of rubber materials and are used to buffer the impact force of the movement of the rectangular block 53.

[0040] When adjusting the position of the lower die holder 4, the moving motor 51 is started through the controller 14 to make the moving lead screw 52 rotate, driving the rectangular block 53 to move, so as to achieve the effect of moving the lower die holder 4.

[0041] Refer to Figure 3 and Figure 8 , a placing cavity 41 is arranged on the lower die holder 4, and a baffle is connected to the outlet end of the placing cavity 41 by bolts. A bearing column 42 is vertically fixedly connected in the placing cavity 41, and the top end of the bearing column 42 passes through the baffle. A limiting cylinder 43 is sleeved on the bearing column 42, the inner diameter of the limiting cylinder 43 is the same as the diameter of the feeding hole 212, and a limiting ring 431 is fixedly connected to the limiting cylinder 43. A jacking spring 44 is sleeved on the bearing column 42, and the jacking spring 44 is located between the limiting cylinder 43 and the bottom wall of the placing cavity 41. In the initial state, under the action of the jacking spring 44, the limiting ring 431 abuts against the baffle, and a placing groove 45 is formed between the limiting cylinder 43 and the top end of the bearing column 42. The gravity of the counterweight 213 is greater than the ultimate elastic force of the jacking spring 44.

[0042] Refer to Figure 8 , a jacking component 6 is arranged on the lower die holder 4. The jacking component 6 includes a driving rod 61, a driving bevel gear 62, a driven bevel gear 63, a limiting block 64 and a jacking rod 65. An installation groove is formed in the connecting seat, the driving rod 61 is horizontally rotatably connected in the installation groove, and the driving bevel gear 62 is fixedly connected to the end of the driving rod 61 and is located in the installation groove. The driven bevel gear 63 is rotatably connected to the bottom wall of the lower die holder 4 and is meshed with the driving bevel gear 62.

[0043] Refer to Figure 8, a jacking hole is formed in the lower die base 4 at a position corresponding to the driven bevel gear 63, and the limiting block 64 is fixedly connected in the jacking hole. The ejector rod 65 is disposed between the jacking hole and the bearing column 42. The ejector rod 65 is in threaded cooperation with the driven bevel gear 63, and a limiting groove is formed in the ejector rod 65. The limiting groove is in sliding cooperation with the limiting block 64.

[0044] When the positive electrode case 02 is stuck in the limiting groove and cannot be taken out, the driving rod 61 is rotated to rotate the driving bevel gear 62, which drives the driven bevel gear 63 to rotate. Due to the threaded cooperation between the ejector rod 65 and the driven bevel gear 63 and the sliding cooperation between the ejector rod 65 and the limiting block 64, the ejector rod 65 rises to push the positive electrode case 02 and adjust the angle of the positive electrode case 02, facilitating the installation of the positive electrode case 02.

[0045] The implementation principle of an embodiment of a lithium manganese primary button cell packaging device in this application is as follows: Before packaging, the moving motor 51 is started through the controller 14 to rotate the moving lead screw 52, causing the rectangular block 53 to move and driving the lower die base 4 to move outside the frame body 11. At this time, the positive electrode case 02 is placed in the limiting groove, and then the lower die base 4 is moved directly below the upper die base 13. The negative electrode cases 01 are stacked in the feeding cylinder 22, and the feeding cylinder 23 is started to move the lowermost negative electrode case 01 along the feeding channel. During this process, the negative electrode case 01 abuts against the guiding arc surface 312, causing the two clamping arc blocks 31 to move, and the clamping spring 32 is compressed until the negative electrode case 01 moves directly below the upper die base 13. The clamping arc blocks 31 move in the opposite direction under the action of the clamping spring 32 to clamp the negative electrode case 01 in cooperation with the supporting arc surface 311 to position and convey the negative electrode case 01. Subsequently, the stamping part 12 is started, and the upper die base 13 descends, driving the feeding shell 21 to descend. The feeding shell 21 presses the limiting cylinder 43, and the limiting cylinder 43 descends. The feeding hole 212 restricts the positive electrode case 02 until the negative electrode case 01 is riveted on the positive electrode case 02. The button cell rises with the feeding shell 21. When the feeding shell 21 is lifted, the button cell rises. During this process, it abuts against the bottom end of the upper die base 13, causing the button cell to disengage from the two clamping arc blocks 31 to unload the button cell, achieving the packaging effect of the button cell.

[0046] Before packaging, the lower die base 4 is moved out of the range of the frame body 11, enabling the staff to observe the installation situation of the positive electrode case 02 from multiple angles regardless of the obstruction of the frame body 11. At the same time, the feeding assembly 2 automatically conveys the negative electrode cases 01 to the riveting station, and the clamping assembly 3 restricts the negative electrode cases 01. Compared with the prior art, the relative position error between the negative electrode cases 01 and the positive electrode case 02 is reduced, and the processing scrap rate of the button cells is lowered.

[0047] The above are all the preferred embodiments of this application, and the protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A primary lithium-manganese button cell packaging device, characterized in that: It includes a machine base (1), a frame body (11) is connected to the machine base (1), a stamping part (12) for stamping button batteries is arranged on the frame body (11), the output end of the stamping part (12) is connected to an upper die base (13), a lower die base (4), a controller (14) and a moving component (5) are arranged on the machine base (1), the moving component (5) includes a moving motor (51), a moving lead screw (52) and a rectangular block (53), a sliding groove (15) is arranged on the machine base (1), the rectangular block (53) is connected to the bottom wall of the lower die base (4) and is slidably matched with the sliding groove (15), the moving lead screw (52) is rotatably connected in the sliding groove (15) and is arranged parallel to the sliding groove (15), the moving lead screw (52) is in threaded cooperation with the rectangular block (53), the moving motor (51) is installed at the end of the machine base (1) and is coaxially connected to the moving lead screw (52), the moving motor (51) is electrically connected to the controller (14), a feeding component (2) for conveying a negative electrode shell (01) to a riveting station is arranged on the upper die base (13), when placing a positive electrode shell (02), the lower die base (4) is located outside the frame body (11).

2. The lithium manganese primary button cell packaging device according to claim 1, wherein: A placing cavity (41) is arranged in the lower die base (4), a bearing column (42) is connected in the placing cavity (41), the top end of the bearing column (42) extends out of the top end of the lower die base (4), a limiting cylinder (43) is slidably matched vertically on the lower die base (4), the limiting cylinder (43) is sleeved on the bearing column (42), and a placing groove (45) is formed between the limiting cylinder (43) and the top end of the bearing column (42), a limiting ring (431) is connected to the limiting cylinder (43), a jacking spring (44) is sleeved on the bearing column (42), the jacking spring (44) is located between the limiting cylinder (43) and the bottom wall of the placing cavity (41), in the normal state, the limiting ring (431) abuts against the inner top wall of the placing cavity (41).

3. The lithium manganese primary button cell packaging device according to claim 2, wherein: A jacking component (6) is arranged on the lower die base (4), the jacking component (6) includes a driving rod (61), a driving bevel gear (62), a driven bevel gear (63), a limiting block (64) and a jacking rod (65), the jacking rod (65) is slidably matched vertically between the bearing column (42) and the lower die base (4), an installation groove is formed at a position corresponding to the lower part of the placing cavity (41) on the lower die base (4), the driven bevel gear (63) is rotatably connected to the top wall of the installation groove and is in threaded cooperation with the bottom of the jacking rod (65), the limiting block (64) is connected to the lower die base (4), a limiting groove is formed on the jacking rod (65), and the limiting block (64) is slidably matched with the limiting groove, the driving rod (61) is horizontally rotatably connected in the installation groove, the driving bevel gear (62) is connected to the end of the driving rod (61) and is meshed with the driven bevel gear (63).

4. The primary lithium-manganese button cell packaging device according to claim 2, characterized in that: The feeding assembly (2) includes a feeding housing (21), a discharging cylinder (22) and a pushing cylinder (23). The feeding housing (21) is installed on the upper die base (13). A feeding hole (212) is formed in the feeding housing (21) at a position corresponding to directly below the upper die base (13). The diameter of the feeding hole (212) is the same as the inner diameter of the limiting cylinder (43). A feeding channel is arranged in the feeding housing (21). The discharging cylinder (22) is vertically connected to the feeding housing (21) and is slidably matched with the frame body (11). The discharging cylinder (22) is communicated with the feeding channel. The pushing cylinder (23) is connected to the end of the feeding housing (21) and is arranged in a straight line between the discharging cylinder (22) and the feeding hole (212). The pushing cylinder (23) is electrically connected to the controller (14). A clamping assembly (3) for clamping the negative electrode shell (01) is arranged in the feeding housing (21) at a position corresponding to the feeding hole (212).

5. The lithium manganese primary button cell packaging device according to claim 4, wherein: The clamping assembly (3) includes clamping arc blocks (31), clamping springs (32) and connecting rods (33). Two clamping arc blocks (31) are arranged in the feeding housing (21). The two clamping arc blocks (31) are arranged oppositely. A supporting arc surface (311) is arranged on the inner ring wall of the clamping arc block (31). A guiding arc surface (312) is arranged at the end of the clamping arc block (31) facing the discharging cylinder (22). A number of connecting rods (33) are connected to the clamping arc block (31). The connecting rods (33) are slidably matched with the feeding housing (21). The clamping springs (32) are sleeved on the connecting rods (33) and are located between the clamping arc block (31) and the inner side wall of the feeding housing (21).

6. The lithium manganese primary button cell packaging device according to claim 4, wherein: An L-shaped plate (211) is connected to the feeding housing (21). The L-shaped plate (211) is slidably matched with the upper die base (13). An upper retaining ring (131) and a lower retaining ring (132) are sequentially connected to the upper die base (13) from top to bottom. The L-shaped plate (211) is located between the upper retaining ring (131) and the lower retaining ring (132). A counterweight block (213) is installed on the feeding housing (21). The gravity of the counterweight block (213) is greater than the ultimate elastic force of the ejecting spring (44). In the normal state, the L-shaped plate (211) abuts against the lower retaining ring (132).

7. The lithium manganese primary button cell packaging device according to claim 1, wherein: Dust covers (16) arranged in a folded manner are connected between both ends of the sliding groove (15) and the lower die base (4). The two dust covers (16) and the lower die base (4) cover the sliding groove (15).

8. The primary lithium-manganese button cell packaging device according to claim 1, characterized in that: Collision blocks (151) are connected to both ends of the sliding groove (15). The collision blocks (151) are made of rubber material.

Citation Information

Patent Citations

  • Button cell sealing machine

    CN218513499U