Double-edge-folding mechanism for secondary sealing of soft package battery

Abstract

The utility model relates to a soft package battery two-seal double-edge folding mechanism which comprises an edge pressing device and an edge folding device, the edge pressing device tightly presses the side edge of a battery, a folding knife, a vertical conveying mechanism and a horizontal conveying mechanism are arranged in the edge folding device, and the vertical conveying mechanism and the horizontal conveying mechanism are respectively in transmission connection with the folding knife. Wherein the vertical conveying mechanism drives the folding knife to move in the vertical direction, and upward or downward folding of the side edge is completed; the horizontal conveying mechanism drives the folding knife to move in the horizontal direction, and side edge bending is completed. According to the scheme, an existing edge folding mechanism is changed, and a double-edge folding mechanism is used, so that the time of debugging battery secondary sealing equipment by personnel is shortened, the manpower is saved, the remodeling efficiency is improved, and the production cost of soft package battery packaging is saved.

Description

Technical Field

[0001] This utility model relates to the field of soft-pack battery packaging technology, and in particular to a double-sided folding mechanism for soft-pack batteries. Background Technology

[0002] The secondary sealing process for pouch batteries is a crucial step in their production, involving a second encapsulation of the battery. This process primarily includes gas extraction, puncturing the gas bag, secondary sealing, edge trimming, and edge folding. During the edge folding process, due to varying battery manufacturing requirements, the folding direction is either upward or downward, typically involving bending the edges by a few millimeters to tens of millimeters. Currently, most pouch battery secondary sealing equipment uses downward folding mechanisms. Producing upward-folded pouch batteries requires flipping the battery and readjusting the equipment, resulting in wasted time. Utility Model Content

[0003] The purpose of this invention is to provide a double-sided folding mechanism for a soft-pack battery to solve the problems encountered in the background art.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A double-sided folding mechanism for a soft-pack battery includes a pressing device and a folding device. The pressing device presses the sides of the battery tightly. The folding device includes a folding knife, a vertical conveying mechanism, and a horizontal conveying mechanism. The vertical and horizontal conveying mechanisms are respectively connected to the folding knife for transmission. The vertical conveying mechanism drives the folding knife to move in the vertical direction to complete the upward or downward folding of the sides. The horizontal conveying mechanism drives the folding knife to move in the horizontal direction to complete the side bending.

[0006] In the above scheme, the pressing device includes a pressing plate lifting cylinder, a pressing plate, a folding plate, and a worktable. The pressing plate lifting cylinder is connected to the pressing plate in the vertical direction. The folding plate is installed on one side of the worktable. The bottom of the pressing plate is flush with the top of the folding plate and presses the side edge tightly.

[0007] Furthermore, in the above scheme, the bottom of the pressure plate is provided with a pressing edge, which is perpendicular to the plate body of the pressure plate, and the top of the folding plate is provided with a top edge, which is perpendicular to the plate body of the folding plate. The pressing edge and the top edge press the side edge together.

[0008] As a preferred embodiment, the mounting bracket of the pressure plate lifting cylinder is provided with first stop bolts on both sides, which are used to limit the conveying stroke of the pressure plate.

[0009] In the above scheme, the bottom of the workbench is connected to a base plate at its four ends by support columns, and the bottom sides of the base plate are provided with first linear guide rails that slide linearly with other external mounting platforms.

[0010] The vertical conveying mechanism includes a folding knife lifting cylinder, a mounting plate, and a worktable. The mounting plate is installed on the worktable. The output shaft of the folding knife lifting cylinder passes through the mounting plate and drives the folding knife in the vertical direction. The working end of the folding knife has an acute angle structure with an angle of 5-10 degrees.

[0011] As a preferred embodiment, the mounting bracket of the folding knife lifting cylinder is provided with third stop bolts on both sides, which are used to limit the conveying stroke of the folding knife.

[0012] In the above scheme, the horizontal conveying mechanism includes a folding cylinder and a conveying plate. The conveying plate is slidably connected to the mounting plate through a second linear guide rail. The output shaft of the folding cylinder is connected to the conveying plate in a horizontal transmission manner. The folding knife is installed at the working end of the conveying plate.

[0013] As a preferred embodiment, the bottom of the conveyor plate is provided with a second stop bolt, which is installed on both sides of the worktable and is used to limit the conveying stroke of the folding knife.

[0014] Compared with the prior art, the beneficial effects of this utility model are: this solution changes the existing folding mechanism to a double-sided folding mechanism, which reduces the time for personnel to debug the battery secondary sealing equipment, saves manpower, improves changeover efficiency, and saves the production cost of soft-pack battery packaging. Attached Figure Description

[0015] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 for Figure 1 A structural diagram from a rear view;

[0018] Figure 3 This is a front view of the present invention;

[0019] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0020] Figure 5 for Figure 4 A schematic diagram of the three-dimensional structure;

[0021] Figure 6 This is a schematic diagram of the overall structure of the folding device in this utility model;

[0022] Figure 7 for Figure 6 A structural diagram viewed from below.

[0023] Numbering in the diagram: 1-Edge pressing device; 2-Folding device; 3-Battery; 4-Pressure plate lifting cylinder; 5-Pressure plate; 6-Folding plate; 7-First stop bolt; 8-Folding knife lifting cylinder; 9-Folding knife; 10-Second stop bolt; 11-Folding cylinder; 12-Third stop bolt; 13-Base plate; 14-First linear guide rail; 15-Support column; 16-Side edge; 17-Edge pressing; 18-Top edge; 19-Mounting plate; 20-Conveying plate; 21-Second linear guide rail. Detailed Implementation

[0024] To make the technical means, creative features, achieved objectives and effects of this utility model easier to understand, the utility model will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of this utility model, and therefore only show the relevant components of this utility model.

[0025] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.

[0026] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Example 1, as Figures 1 to 3 As shown, a double-sided folding mechanism for a soft-pack battery includes a pressing device 1 and a folding device 2. The pressing device 1 presses the side 16 of the battery 3 tightly, preparing for the upward or downward side of the battery to be sealed.

[0028] The folding device 2 includes a folding knife 9, a vertical conveying mechanism, and a horizontal conveying mechanism, which are respectively connected to the folding knife 9 for transmission. Specifically, the vertical conveying mechanism drives the folding knife 9 to move in the vertical direction, completing the upward or downward folding of the side edge 16. The horizontal conveying mechanism drives the folding knife 9 to move in the horizontal direction, completing the bending of the side edge 16. To facilitate unified management of the folding knife 9, the horizontal conveying mechanism can be installed at the moving end of the vertical conveying mechanism, so that the movement of the vertical conveying mechanism drives the movement of the horizontal conveying mechanism.

[0029] Example 2, based on Example 1, is described in detail below. The pressing device 1 includes a pressing plate lifting cylinder 4, a pressing plate 5, a folding plate 6, and a worktable. The pressing plate lifting cylinder 4 is vertically connected to the pressing plate 5, and the folding plate 6 is installed on one side of the worktable. The bottom of the pressing plate 5 is flush with the top of the folding plate 6, pressing the side edge 16 tightly. During implementation, the backs of the pressing plate 5 and the folding plate 6 can be flush, facilitating the insertion of the side edge 16 of the battery 3 between the pressing plate 5 and the folding plate 6, where it is then clamped.

[0030] Please see Figure 4 and Figure 5 The pressure plate 5 has a pressure edge 17 at its bottom, which is perpendicular to the plate body. The folding plate 6 has a top edge 18 at its top, which is also perpendicular to the plate body. The pressure edge 17 and the top edge 18 have a certain length, generally 8-15 mm. The pressure plate 5 and the folding plate 6 press the side edge 16 together through the cooperation of the pressure edge 17 and the top edge 18. During implementation, when folding upwards, the folding knife 9 presses the side edge 16 of the battery 3 into the top space of the pressure edge 17 of the pressure plate 5, completing the folding process. When folding downwards, the folding knife 9 presses the side edge 16 of the battery 3 into the bottom space of the top edge 18 of the folding plate 6, completing the folding process.

[0031] As a preferred embodiment, the mounting bracket of the pressure plate lifting cylinder 4 is provided with first stop bolts 7 on both sides. The first stop bolts 7 are used to limit the conveying stroke of the pressure plate 5, preventing the pressure plate lifting cylinder 4 from overtraveling when driving the pressure plate 5 downward. L-shaped plates are provided on both sides of the mounting bracket of the pressure plate lifting cylinder 4, and the first stop bolts 7 are installed at the lower part of the L-shaped plates. The L-shaped plates are connected to the top of the pressure plate 5. When the pressure plate lifting cylinder 4 extends the pressure plate 5, after reaching the designated stroke, the downward displacement of the L-shaped plates will be limited by the first stop bolts 7, preventing the pressure plate 5 from moving downward too far.

[0032] For further details, please refer to Figure 6 and Figure 7 The vertical conveying mechanism includes a folding knife lifting cylinder 8, a mounting plate 19, and a worktable. The mounting plate 19 is mounted on the worktable, and the mounting seat of the folding knife lifting cylinder 8 is also mounted on the worktable via guide pillars. The output shaft of the folding knife lifting cylinder 8 passes through the mounting plate 19 and drives the folding knife 9 in a vertical direction. When the folding knife 9 is driven to retract upward, it bends the side 16 of the battery 3 upward; when the folding knife 9 is driven to extend downward, it bends the side 16 of the battery 3 downward, thereby completing the double-folding operation.

[0033] The working end of the folding knife 9 has an acute angle structure with an angle of 5-10 degrees. The sharp corner is rounded to facilitate a higher push of the side 16.

[0034] As a preferred embodiment, the mounting bracket of the folding knife lifting cylinder 8 is provided with third stop bolts 12 on both sides. The third stop bolts 12 are connected to the mounting plate 19 through the guide post. The third stop bolts 12 are used to limit the conveying stroke of the folding knife 9 to prevent the folding knife 9 from exceeding the conveying stroke in the vertical direction.

[0035] In addition, the horizontal conveying mechanism includes a folding cylinder 11 and a conveying plate 20. The conveying plate 20 is slidably connected to the mounting plate 19 via a second linear guide 21. Therefore, the horizontal conveying mechanism is attached to the working end of the vertical conveying mechanism and moves a certain displacement as driven by the vertical conveying mechanism. The mounting plate of the folding cylinder 11 is fixed on the mounting plate 19. The output shaft of the folding cylinder 11 is horizontally connected to the conveying plate 20. The folding knife 9 is installed at the working end of the conveying plate 20. When the folding cylinder 11 is working, it drives the folding knife 9 to move back and forth.

[0036] As a preferred embodiment, the bottom of the conveyor plate 20 is provided with a second stop bolt 10. The second stop bolt 10 is installed on both sides of the worktable. The second stop bolt 10 is used to limit the conveying stroke of the folding knife 9, mainly to limit the moving position of the conveyor plate 20, and to prevent the folding knife 9 from exceeding the conveying stroke in the left and right horizontal directions.

[0037] Based on the scheme of Example 2, when the battery 3 is running in the folding process of the second sealing equipment, the following movement process is performed during implementation:

[0038] Battery 3 is folded downwards: The pressure plate lifting cylinder 4 extends, driving the pressure plate 5 to press the side 16 of battery 3 onto the folding plate 6. The first stop bolt 7 limits the pressure plate 5 to prevent it from breaking after pressing too hard on the folding plate 6. The folding knife lifting cylinder 8 extends, driving the folding knife 9 to fold the side 16 of battery 3 downwards. The second stop bolt 10 limits the folding knife 9 to prevent the distance between the folding knife 9 and the folding plate 6 from being too large, resulting in poor folding. The folding cylinder 11 extends, driving the folding knife 9 to press the side 16 of battery 3 against the folding plate 6, completing the folding process.

[0039] Battery 3 folds upward: With the folding knife lifting cylinder 8 extended, the folding knife 9 is reversed, and the pressure plate lifting cylinder 4 extends, causing the pressure plate 5 to press the side 16 of the battery 3 onto the folding plate 6. The first stop bolt 7 limits the pressure plate 5 to prevent it from breaking due to excessive pressure on the folding plate 6. The folding knife lifting cylinder 8 retracts, causing the folding knife 9 to fold the side 16 of the battery 3 upward. The third stop bolt 12 limits the folding knife 9 to prevent the gap between the folding knife 9 and the pressure plate 5 from being too large, resulting in poor folding. The folding cylinder 11 extends, causing the folding knife 9 to press the side 16 of the battery 3 against the pressure plate 5, completing the folding process.

[0040] Example 3, please refer to Figure 2The bottom of the workbench is connected to the base plate 13 at the four ends by the support column 15. The bottom sides of the base plate 13 are provided with the first linear guide rail 14 that slides linearly with other external mounting platforms. The double folding mechanism can be slidably connected to the work station of the battery sealing equipment through the base plate 13, so as to receive the side edge 16 of the battery 3 that is transported by the back and forth movement, and to facilitate folding.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. These undisclosed elements are all prior art known to those skilled in the art.

[0042] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A double-sided folding mechanism for a soft-pack battery, characterized in that: The device includes a pressing device (1) and a folding device (2). The pressing device (1) presses the side edge (16) of the battery (3) tightly. The folding device (2) is equipped with a folding knife (9), a vertical conveying mechanism, and a horizontal conveying mechanism. The vertical conveying mechanism and the horizontal conveying mechanism are respectively connected to the folding knife (9) for transmission. The vertical conveying mechanism drives the folding knife (9) to move in the up and down direction to complete the upward or downward folding of the side edge (16). The horizontal conveying mechanism drives the folding knife (9) to move in the horizontal direction to complete the bending of the side edge (16).

2. The double-sided folding mechanism for a soft-pack battery according to claim 1, characterized in that: The pressing device (1) includes a pressing plate lifting cylinder (4), a pressing plate (5), a folding plate (6) and a worktable. The pressing plate lifting cylinder (4) is connected to the pressing plate (5) in the vertical direction. The folding plate (6) is installed on one side of the worktable. The bottom of the pressing plate (5) is flush with the top of the folding plate (6) and presses the side edge (16) tightly.

3. The double-sided folding mechanism for a soft-pack battery according to claim 2, characterized in that: The bottom of the pressure plate (5) is provided with a pressing edge (17), which is perpendicular to the plate body of the pressure plate (5). The top of the folding plate (6) is provided with a top edge (18), which is perpendicular to the plate body of the folding plate (6). The pressing edge (17) and the top edge (18) press the side edge (16) together.

4. The double-sided folding mechanism for a soft-pack battery according to claim 2, characterized in that: The mounting bracket of the pressure plate lifting cylinder (4) is provided with first stop bolts (7) on both sides. The first stop bolts (7) are used to limit the conveying stroke of the pressure plate (5).

5. The double-sided folding mechanism for a soft-pack battery according to claim 2, characterized in that: The bottom of the workbench is connected to a base plate (13) by support columns (15) at its four ends. The bottom sides of the base plate (13) are provided with first linear guide rails (14) that slide linearly with other external mounting platforms.

6. The double-sided folding mechanism for a soft-pack battery according to claim 1, characterized in that: The vertical conveying mechanism includes a folding knife lifting cylinder (8), a mounting plate (19), and a worktable. The mounting plate (19) is mounted on the worktable. The output shaft of the folding knife lifting cylinder (8) passes through the mounting plate (19) and drives the folding knife (9) in the vertical direction. The working end of the folding knife (9) has an acute angle structure with an angle of 5-10 degrees.

7. The double-sided folding mechanism for a soft-pack battery according to claim 6, characterized in that: The mounting bracket of the folding knife lifting cylinder (8) is provided with a third stop bolt (12) on both sides. The third stop bolt (12) is used to limit the conveying stroke of the folding knife (9).

8. The double-sided folding mechanism for a soft-pack battery according to claim 6, characterized in that: The horizontal conveying mechanism includes a folding cylinder (11) and a conveying plate (20). The conveying plate (20) is slidably connected to the mounting plate (19) via a second linear guide rail (21). The output shaft of the folding cylinder (11) is connected to the conveying plate (20) in a horizontal manner. The folding knife (9) is installed at the working end of the conveying plate (20).

9. A double-sided folding mechanism for a soft-pack battery according to claim 8, characterized in that: The bottom of the conveyor plate (20) is provided with a second stop bolt (10). The second stop bolt (10) is installed on both sides of the workbench and is used to limit the conveying stroke of the folding knife (9).

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