Edge folding mechanism suitable for ultra-narrow edge folding process of ultra-thin battery

By designing a folding mechanism adapted to the ultra-thin battery and ultra-narrow folding process, and using a servo motor to drive the lead screw and the flipping mechanism, the problem that the traditional roller folding method cannot meet the double folding of the skirt of ultra-thin batteries is solved, and a highly efficient battery skirt folding effect is achieved.

CN224067678UActive Publication Date: 2026-03-31浙江仕能机电科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Traditional roller folding methods cannot meet the requirements of ultra-thin batteries with ultra-narrow folding edges, and existing technologies cannot effectively complete the double folding operation of the battery skirt.

Method used

A folding mechanism adapted to the ultra-thin battery and ultra-narrow folding process was designed, including a front-to-back moving component, a top-to-bottom moving component, and a skirt folding component. The precise folding of the battery skirt is achieved by a servo motor driving a lead screw and a flipping mechanism.

Benefits of technology

It achieves effective double-folding of the ultra-thin battery skirt, meeting the process requirements after the battery thickness is reduced, and ensuring the quality and efficiency of folding.

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Abstract

The utility model relates to a battery processing part, in particular to an edge folding mechanism suitable for an ultra-narrow edge folding process of an ultra-thin battery, which comprises a front-and-back moving assembly (1), an up-and-down moving assembly (2) and a skirt edge flanging assembly (3), the front-and-back moving assembly (1) comprises a front-and-back servo motor (22), a front-and-back screw rod (16) and a front-and-back movable plate (12); the up-and-down moving assembly (2) comprises an up-and-down servo motor (44), an up-and-down lead screw (39), an up-and-down linear block (32), a cam follower (33) and an up-and-down bottom plate (31). The skirt edge turning assembly (3) comprises a turning servo motor (66), a turning lead screw (68), a turning pusher dog (58), a turning knife (77), a turning track (74) and a center shaft (85).
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Description

Technical Field

[0001] This patent relates to a folding mechanism adapted to the ultra-thin battery ultra-narrow folding process. Background Technology

[0002] With the continuous upgrading of electronic products, consumer batteries are also developing towards irregular shapes and ultra-thin designs. The thickness of consumer batteries has decreased from the original minimum of 2.0mm to 1.5mm, or even 1.2mm. As the battery thickness decreases, the width of the battery skirt also decreases. If the battery skirt needs to be double-folded, the original traditional roller folding method can no longer meet the folding requirements. Therefore, a patented folding mechanism adapted to the ultra-thin battery ultra-narrow folding process has been designed.

[0003] Patent content

[0004] This patent addresses the above-mentioned problems.

[0005] The specific technical solution is as follows:

[0006] A folding mechanism adapted to the ultra-thin battery ultra-narrow folding process, characterized in that it comprises: a front-to-back moving component (1), a vertical moving component (2), and a skirt folding component (3), wherein,

[0007] The aforementioned forward and backward moving assembly (1) includes: forward and backward servo motors (22), forward and backward lead screws (16), and forward and backward movable plates (12);

[0008] The up-and-down moving assembly (2) includes: up-and-down servo motors (44), up-and-down lead screws (39), up-and-down linear blocks (32), cam follower (33), and up-and-down base plates (31);

[0009] The skirt folding assembly (3) includes: a flip servo motor (66), a flip screw (68), a flip claw (58), a folding blade (77), a flip turning rail (74), and a central shaft (85); the flip servo motor (66) drives the flip screw (68) to rotate, the flip claw (58) moves upward, the central shaft (85) rotates along the flip turning rail (74), and the folding blade (77) folds the battery skirt upward.

[0010] Furthermore, the front and rear servo motors (22) drive the lead screw (16) to move back and forth.

[0011] Furthermore, the upper and lower servo motors (44) drive the upper and lower lead screws (39), and the upper and lower linear blocks (32) move forward.

[0012] Furthermore, the skirt hem assembly (3) also includes an upper folding blade (57) and a lower folding blade (55).

[0013] Beneficial effects

[0014] As the thickness of the battery decreases, the width of the battery skirt also decreases. If the battery skirt needs to be double-folded, the original traditional roller folding method can no longer meet the folding requirements. Therefore, the patented design is a folding mechanism adapted to the ultra-thin battery ultra-narrow folding process. Attached Figure Description

[0015] Figure 1 This patent describes a folding mechanism adapted to the ultra-thin battery and ultra-narrow folding process.

[0016] Figure 2 This is a schematic diagram of the forward and backward moving component;

[0017] Figure 3-5 This is a schematic diagram of the vertically movable component;

[0018] Figure 6-10 This is a schematic diagram of the hem-flipping component;

[0019] Figure 11 This is a schematic diagram of the ultra-thin battery's ultra-narrow edge folding process. Detailed Implementation

[0020] The technical solutions of this patent embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this patent, and not all of them. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0021] As the thickness of the battery decreases, the width of the battery skirt also decreases. If the battery skirt needs to be double-folded, the original traditional roller folding method can no longer meet the folding requirements. Therefore, the patented design is a folding mechanism adapted to the ultra-thin battery ultra-narrow folding process.

[0022] like Figure 1 The folding mechanism proposed in this patent, adapted to the ultra-thin battery and ultra-narrow folding process, mainly includes three components:

[0023] (1) Forward and backward moving components;

[0024] (2) Up and down moving components;

[0025] (3) Skirt hem turning-up assembly;

[0026] The forward and backward moving component 1 is located at the bottom of the entire mechanism. It is driven by a motor to move the front and rear lead screws 16. The movement of the lead screws moves the movable plate 12, allowing the mechanism to move forward and backward.

[0027] A vertical movement component 2 is set on the forward / backward movement component 1. For example... Figure 4 The vertical moving component 2 is also driven by a motor to move the lead screw horizontally, and then converted into vertical movement through the vertical linear block 32 and the cam follower 33, so as to realize the vertical movement of the upper and lower base plates 31.

[0028] The upper and lower base plates 31 move up and down, allowing the mechanism to move up and down; together with the skirt and folding assembly 3, the battery's ultra-narrow folding action is completed.

[0029] The following explanation, in conjunction with the accompanying diagram, will further illustrate the points:

[0030] Forward and backward moving component 1, such as Figure 2 The servo motor drives the lead screw to move back and forth. The main components include: front and rear servo motors 22, couplings 19, front and rear lead screws 16, and front and rear movable plates 12. The servo motor 22 provides power to drive the lead screw 16 to move back and forth, which in turn drives the front and rear movable plates 12 to move back and forth.

[0031] Furthermore, the front and rear linear guides 11 are mounted on the base plate 10, and the front and rear movable plates 12 are mounted on the folding front and rear linear guides 11, connected to the folding front and rear lead screw nut seat 15 via connecting blocks 13. The front and rear lead screw fixing seats 14 and the folding front and rear lead screw support seats 17 are mounted on the base plate 10. The two ends of the front and rear lead screws 16 are assembled together with the front and rear lead screw fixing seats 14 and the front and rear lead screw support seats 17, and the nuts of the front and rear lead screws 16 are connected to the folding front and rear lead screw nut seat 15. The folding front and rear servo motor 22 is mounted on the motor mounting plate 21, which is connected to the motor upright plate 18 via a coupling guard plate 20. The motor upright plate 18 is mounted on the base plate 10. The coupling 19 connects the two shafts of the folding front and rear servo motor 22 and the folding front and rear lead screw 16.

[0032] Up and down moving component 2, such as Figure 3 , Figure 4 , Figure 5 It mainly includes: a tilting servo motor 44, a tilting lead screw 39, a tilting linear block 32, a cam follower 33, a guide shaft 37, a linear bearing 35, and a spring 36.

[0033] It uses a servo motor 44 to drive a lead screw, which moves up and down via upper and lower linear blocks 32 and a cam follower 33.

[0034] Specifically, the crossed roller bearing 34 is mounted on the folding front and rear movable plate 12, the folding upper and lower push plate 30 is mounted on the crossed roller bearing 34, and the cam follower 33 is mounted on the folding upper and lower push plate 30. The nut mounting plate 40 is mounted on the folding upper and lower push plate 30, the nut of the tilting upper and lower lead screw 39 is connected to the nut mounting plate 40, the tilting upper and lower lead screw fixing seat 41 is mounted on the folding front and rear movable plate 12, and the tilting upper and lower lead screw 39 is fixed to the tilting upper and lower lead screw fixing seat 41. The tilting upper and lower servo mounting seat 42 is fixed to the folding front and rear movable plate 12, the tilting upper and lower servo motor 44 is mounted on the tilting upper and lower servo mounting seat 42, and the coupling 43 connects the tilting upper and lower lead screw 39 and the tilting upper and lower servo motor 44. The tilting upper and lower linear block 32 is mounted on the tilting upper and lower base plate 31, and the cam follower 33 is in contact with the tilting upper and lower linear block 32. The guide shaft 37 is mounted on the folding front and rear movable plate 12, the linear bearing 35 is mounted on the flipping upper and lower base plate 31, the linear bearing 35 is sleeved on the guide shaft 37, the spring 36 is also sleeved on the guide shaft 37, and the baffle 38 is locked on the guide shaft 37 to block the spring 36.

[0035] Skirt hem fold-up components, such as Figure 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 It mainly includes an upper folding blade 57, a lower folding blade 55, a flip folding blade 77, a cylinder 62, a cam follower 84, a flip turning rail 74, and a flip servo 66;

[0036] The folding lower blade base plate 50 is mounted on the flipping upper and lower base plates 31. The flipping servo mounting plate 51 is mounted together with the folding lower blade base plate 50. The flipping guide rail mounting plate 53 is connected together with the flipping upper and lower base plates 31 and the flipping servo mounting plate 51. The reinforcing plate 52 is fixed between the folding lower blade base plate 50 and the flipping guide rail mounting plate 53. The lower folding blade mounting seat 54 is mounted on the folding lower blade base plate 50, and the lower folding blade 55 is mounted on the lower folding blade mounting seat 54. The upper folding blade movable guide rail 59 is mounted on the folding lower blade base plate, the upper blade holder 56 is mounted on the upper folding blade movable guide rail, and the upper folding blade 57 is mounted on the upper blade holder 56. The upper and lower cylinder seats 60 are fixed to the tilting servo mounting plate 51 via the upright plate 61. The upper and lower cylinders 62 are mounted on the upper and lower cylinder seats 60. One end of the floating joint 63 is connected to the upper and lower cylinders 62, and the other end is connected to the connecting rod 64. The connecting rod 64 is mounted on the fixing block 65, and the fixing block 65 is connected to the upper tool holder 56. The lead screw fixing seat 67 is mounted on the tilting guide rail mounting plate 53. The tilting lead screw 68 is fixed together with the lead screw fixing seat 67. The tilting servo 66 is mounted on the tilting servo mounting plate 51, and the tilting lead screw 68 and the tilting servo 66 are connected by the coupling 69. The tilting guide rail 73 is fixed on the tilting guide rail mounting plate 53. The tilting movable plate 71 is mounted on the tilting guide rail 73 and is connected to the tilting lead screw 68 via the tilting nut seat 70. The tilting claw 58 is fixed on the tilting movable plate 71 and is connected by the reinforcing rib 72. A folding blade 77 is mounted on a folding blade holder 76. A folding turning rail 74 is fixed on a folding lower blade base plate 50. A central shaft 85 passes through the folding blade holder 76, a central bearing 83, a centering swing seat 81, and a bearing 78, and is fixed at both ends by baffles 75. A centering seat 79 is fixed on the folding blade holder 76. A height equalizing screw 80 passes through the centering seat 79 and is mounted on the centering swing seat 81. Springs 82 are provided in the two centering swing seats 81. A cam follower 84 is mounted on the centering swing seat 81. The surface of the central bearing 83 is in contact with the inner side of the folding turning rail 74, and the surface of the cam follower 84 is in contact with the outer side of the folding turning rail 74. The bearing 78 passes through the slot of the flipping pawl 58.

[0037] like Figure 11 The entire folding process includes:

[0038] Once the battery cell is in place, the folding and moving components move, and the folding and moving servo motor 22 drives the folding and moving screw 16 to rotate. The folding and moving plate 12 moves forward, causing the upper folding blade 57 to move to the skirt folding position.

[0039] The up-and-down movement component moves, the up-and-down servo motor 44 drives the up-and-down lead screw 39 to rotate, the up-and-down linear block 32 moves forward, causing the up-and-down base plate 31 to move upward, and the up-and-down servo motor 44 stops rotating after the folding blade 55 touches the edge of the battery cell.

[0040] The upper and lower cylinders 62 extend, driving the upper folding blade 57 to move downwards and press down on the battery skirt.

[0041] The rotation of the flip servo 66 drives the flip screw 68 to rotate, causing the flip pawl 58 to move upward, which in turn drives the central shaft 85 to rotate along the flip turning rail 74. The flip knife holder 76 and the flip knife 77 rotate together, and the flip knife 77 folds the battery skirt upward, making the skirt angle between 50 and 60 degrees. The flip servo 66 reverses, the flip pawl 58 moves downward, and the flip knife 77 retracts, preferably by about 10 degrees.

[0042] The upper and lower cylinders 62 retract, and the upper folding blade 57 resets.

[0043] The folding blade 77 continues to move upward, folding the skirt hem to 180°. The flipping servo 66 reverses, and the folding blade resets. The flipping up-down servo motor 44 reverses, and the lower folding blade 55 resets. The folding forward-backward servo motor 22 reverses, and the folding edge forward-backward moving component resets.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of this patent, and not to limit them; although this patent has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this patent.

Claims

1. A folding mechanism adapted to the ultra-thin battery ultra-narrow folding process, characterized in that: Include: Front and rear moving assembly (1), up and down moving assembly (2), skirt edge folding assembly (3), wherein, The front and rear moving assembly (1) comprises: front and rear servo motor (22), front and rear screw rod (16), front and rear movable plate (12); The up and down moving assembly (2) comprises: up and down servo motor (44), up and down screw rod (39), up and down linear block (32), cam follower (33), up and down bottom plate (31); The skirt edge folding assembly (3) comprises: turnover servo motor (66), turnover screw rod (68), turnover pawl (58), turnover knife (77), turnover bending rail (74), center shaft (85); The turnover servo motor (66) drives the turnover screw rod (68) to rotate, the turnover pawl (58) moves up, the center shaft (85) rotates along the turnover bending rail (74), and the turnover knife (77) folds the battery skirt upward.

2. The folding mechanism adapted to the ultra-thin battery ultra-narrow folding process according to claim 1, characterized in that, The front and rear servo motor (22) drives the screw rod (16) to move forward and backward.

3. The folding mechanism for the ultra-narrow folding process of ultra-thin battery according to claim 1, wherein, The up and down servo motor (44) drives the up and down screw rod (39), and the up and down linear block (32) moves forward.

4. The folding mechanism for ultra-narrow folding process of ultra-thin battery according to claim 1, wherein, The skirt edge folding assembly (3) further comprises an upper folding knife (57) and a lower folding knife (55).