Packaging tool with accurate limiting function for soft package battery

Abstract

The utility model discloses a soft package battery packaging tool with an accurate limiting function, and relates to the technical field of battery production, the soft package battery packaging tool comprises a clamp used for limiting an aluminum plastic film and a packaging assembly used for packaging the aluminum plastic film, the clamp comprises a bearing plate provided with a sliding groove, two limiting columns are installed on the sliding groove in a sliding mode, and the limiting columns are arranged on the bearing plate. The limiting columns are arranged in the sliding grooves, locking pieces used for locking the positions of the limiting columns are arranged on the limiting columns, the two limiting columns can be in a point contact state with the aluminum-plastic film so that point contact limiting of the aluminum-plastic film can be achieved, the sliding grooves and the two limiting columns jointly form a clamping piece, and multiple sets of clamping pieces are arranged so that multi-point limiting of the aluminum-plastic film can be achieved. According to the utility model, through the multi-point limiting design, the aluminum-plastic films with different shapes can be accurately clamped by utilizing the sliding chutes and the limiting columns, so that the position stability of the aluminum-plastic films in the packaging process is ensured, the deviation is avoided, and the packaging precision and consistency are improved.

Description

Technical Field

[0001] This utility model relates to the field of battery manufacturing technology, specifically to a packaging tooling for soft-pack batteries with precise positioning function. Background Technology

[0002] During the packaging process of pouch batteries, it is generally necessary to limit the flexible packaging material (such as aluminum-plastic film) to prevent it from shifting and causing misalignment during packaging.

[0003] A search revealed a patent document with authorization announcement number CN221390767U, which discloses a packaging fixture. This packaging fixture includes a clamping member, an adjusting member, and an elastic member. The clamping member includes a first clamping plate and a second clamping plate, which are movably connected. The adjusting member is disposed on the clamping member, and is located on at least one of the first and second clamping plates. The position of the adjusting member is adjustable, and it cooperates with the opposing first and second clamping plates or multiple adjusting members to clamp the edge of the aluminum-plastic film. The elastic member is disposed on at least one of the first and second clamping plates and is used to clamp the aluminum-plastic film between the first and second clamping plates.

[0004] The clamping components in the aforementioned packaging fixture provide basic clamping force, while the adjusting components optimize the clamping effect through position adjustment. Together, they achieve the limiting clamping of the aluminum-plastic film. Specifically, multiple adjusting blocks in the adjusting components are installed using bolts and positioning holes. After the aluminum-plastic film is placed on the clamping components, the bolts on the corresponding adjusting blocks must first be loosened. Then, the multiple adjusting blocks are moved sequentially to a position that limits the aluminum-plastic film. Finally, the bolts are tightened to complete the limiting. The clamping plates and adjusting blocks provide surface and line contact limiting for the aluminum-plastic film. However, the line or surface contact limiting described above applies to pouch batteries with regular shapes. When the target is a pouch battery of a specific size or shape, the aluminum-plastic film is also designed to fit the shape. Therefore, the line and surface contact limiting methods described above are less effective at limiting or limiting the aluminum-plastic film of such irregular shapes.

[0005] To address these issues, we propose a packaging fixture for pouch batteries with precise positioning capabilities. Utility Model Content

[0006] The purpose of this invention is to solve the problems in the prior art by proposing a packaging fixture for soft-pack batteries with precise positioning function. This packaging device uses a point contact positioning method to limit and fix the aluminum-plastic film. Compared with the line contact and surface contact positioning methods in the prior art, the positioning method of this application can be adapted to soft-pack batteries of different shapes and has a wide range of applications.

[0007] To solve the above problems, this utility model provides the following technical solution:

[0008] A packaging fixture for soft-pack batteries with precise positioning function includes a clamp for positioning an aluminum-plastic film and a packaging assembly for packaging the aluminum-plastic film. The clamp includes a support plate with a groove thereon, two positioning posts are slidably mounted on the groove, and the positioning posts are provided with locking devices for locking the position of the positioning posts. Both positioning posts can be in point contact with the aluminum-plastic film to achieve point contact positioning of the aluminum-plastic film. The groove and the two positioning posts together constitute a clamping member, and multiple sets of clamping members are set to achieve multi-point positioning of the aluminum-plastic film.

[0009] As a further embodiment of this utility model: the locking component includes a through hole opened at the center of the limiting post, and a follower block is slidably installed in the through hole along the vertical direction. A push block is horizontally movably arranged in the through hole, and one end of the push block extends out of the through hole and can abut against the inner wall of the slide groove. The end of the push block located in the through hole has an inclined surface for the follower block to press against, so that when the follower block moves downward, the follower block can press against the inclined surface and drive the push block to move.

[0010] As a further embodiment of this utility model: the through hole is configured as a threaded hole, and a screw is installed on the threaded hole. The top end of the follower block is rotatably connected to the bottom end of the screw, so that when the screw rotates, the follower block can be driven to move upward or downward in the through hole.

[0011] As a further embodiment of this utility model: the pusher blocks are configured as two and distributed radially, and the inclined surfaces on the two pusher blocks are arranged in an inverted V-shape.

[0012] As a further embodiment of this utility model: the bearing plate is provided with receiving grooves at both ends of the slide groove, and the receiving grooves are connected to the slide groove.

[0013] As a further embodiment of this utility model: the packaging component includes an upper mold and a lower mold adapted to the upper mold. The upper mold and the lower mold are respectively provided with an upper sealing part and a lower sealing part on their adjacent sides, so that when the upper mold and the lower mold are in a closed state, the upper sealing part and the lower sealing part are used to clamp the edge of the aluminum-plastic film in the soft pack battery.

[0014] As a further embodiment of this utility model: two sets of grooves are provided on both the upper sealing part and the lower sealing part, and the two sets of grooves on the upper sealing part are arranged in a one-to-one correspondence with the two sets of grooves on the lower sealing part, so that when the upper mold and the lower mold are in the closed state, the grooves on the upper sealing part and the grooves on the lower sealing part together form a receiving cavity for accommodating the electrode tab.

[0015] As a further embodiment of this utility model: a movable block that can move toward the groove opening is slidably disposed in the groove, so that the size of the receiving cavity formed by the corresponding two sets of grooves in the closed mode is adjustable.

[0016] As a further embodiment of this utility model: a driving component for driving the movable block to slide is provided in the groove.

[0017] As a further embodiment of this utility model: the driving component includes an assembly strip fixedly disposed in the groove, a bolt threaded on the assembly strip, and the length direction of the bolt is parallel to the groove depth direction. The movable block is rotatably connected to the end of the bolt so that when the bolt rotates, the movable block is driven to slide in the groove.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. This device, through a multi-point limiting design, utilizes sliding grooves and limiting posts to achieve precise clamping of aluminum-plastic films of different shapes, ensuring the stability of the aluminum-plastic film's position during the packaging process, avoiding displacement, and improving packaging accuracy and consistency. Compared with the existing line contact limiting and surface contact limiting methods, the limiting method of this application can adapt to soft-pack batteries of different shapes and has a wide range of applications.

[0020] 2. The locking mechanism adopts the inclined surface cooperation mechanism of the follower block and the push block. The lateral movement of the push block can be realized through simple vertical movement. The structure is compact and easy to operate, and it can quickly lock the position of the limit post, improving work efficiency.

[0021] 3. The design of the threaded hole and screw enables precise up-and-down movement of the follower block, which is easy to adjust and highly stable. It can effectively control the movement of the push block and further enhance the reliability of the locking mechanism.

[0022] 4. The two push blocks adopt an inverted V-shaped inclined surface design, so that the downward pressing action of the follower block can simultaneously drive the two push blocks to move outward, ensuring that the clamping force of the limit post is evenly distributed and improving the clamping stability.

[0023] 5. Accommodation slots are provided at both ends of the chute to provide sufficient space for the limiting posts to move and avoid interference with the placement of the aluminum-plastic film due to the presence of the limiting posts. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0026] Figure 2 This is a three-dimensional structural diagram of the upper and lower molds when they are opened in this utility model;

[0027] Figure 3 yes Figure 2 Enlarged structural diagram at point A;

[0028] Figure 4 This is a three-dimensional structural diagram of the upper and lower molds when they are closed in this utility model;

[0029] Figure 5 yes Figure 4 Enlarged structural diagram at point B;

[0030] Figure 6 This is a schematic diagram of the three-dimensional structure of the clamp in this utility model;

[0031] Figure 7 This is a cross-sectional structural diagram of the lock component in this utility model.

[0032] In the diagram: 1. Upper mold; 101. Upper sealing part; 102. Upper curved surface pressing part; 2. Lower mold; 201. Lower sealing part; 202. Lower curved surface pressing part; 3. Groove; 4. Receiving cavity; 5. Movable block; 6. Assembly strip; 7. Bolt; 8. Scale mark; 9. Chassis; 10. Cover; 11. Fixture; 111. Bearing plate; 112. Slide groove; 113. Limiting post; 12. Follower block; 13. Push block; 14. Inclined surface; 15. Screw; 16. Through hole; 17. Receiving groove. Detailed Implementation

[0033] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0034] like Figures 1-7As shown, a packaging device includes a chassis 9 for carrying driving devices and control devices. A cover 10 is hinged to the chassis 9 and can be fitted with the top of the chassis 9. The top of the chassis 9 is provided with a clamp 11 for limiting the aluminum-plastic film and a packaging assembly for packaging the aluminum-plastic film. In use, the clamp 11 is first used to limit and fix the aluminum-plastic film on the soft-pack battery to be packaged, and then the packaging assembly is used to package the fixed aluminum-plastic film.

[0035] The fixture 11 and the packaging assembly are described in detail below:

[0036] Fixture:

[0037] (1) such as Figure 6 As shown, the fixture 11 includes a support plate 111 with a groove 112. Two limiting posts 113 are slidably mounted on the groove 112. The two limiting posts 113 can move towards or away from each other. Simultaneously, each limiting post 113 is equipped with a locking device to lock its position. After the two limiting posts 113 move to a designated position, the locking device can lock their positions. During the limiting process of the aluminum-plastic film, the aluminum-plastic film is first placed on the support plate 111 between the two limiting posts 113. Then, both limiting posts 113 are driven towards the aluminum-plastic film until they contact each other. The locking device then locks the limiting posts 113, thus achieving point contact limiting of the aluminum-plastic film by the two limiting posts 113. Based on the clamping member formed by the slide groove 112 and the two limiting posts 113, this application further sets the clamping member into multiple sets to achieve multi-point limiting of the aluminum-plastic film, such as... Figure 6 As shown, this is the case where three sets of sliding grooves 112 are set. Compared with the existing technology where the limiting effect of line contact limiting and surface contact limiting is affected by the shape of the pouch battery, the point contact limiting in this application has a smaller contact area with the pouch battery. It can not only adapt to limiting different shapes of plastic sealing films, but also, because it is set in multiple sets, it can provide all-round stable limiting, with a good limiting effect.

[0038] (2) For example Figure 6As shown, in the case of simply setting the slide groove 112, two limiting posts 113 are placed in the slide groove 112. In order to ensure that the position of the slide groove 112 covered by the aluminum-plastic film is not interfered with by the limiting posts 113 during the process of placing the aluminum-plastic film on the support plate 111, this application provides receiving grooves 17 at both ends of the support plate 111 and the slide groove 112, and the receiving grooves 17 are connected to the slide groove 112. Therefore, in the initial state, the limiting posts 113 are slid into the receiving grooves 17. Subsequently, there are no limiting posts 113 on the slide groove 112, and the aluminum-plastic film can be directly placed on the corresponding position on the support plate 111. Then, the limiting posts 113 are slid into the slide groove 112 and abut against the aluminum-plastic film, and then locked using a locking device.

[0039] (3) Regarding the design of the locking component in the clamp 11, the locking component can be set as a conventional locking component in the prior art, such as screw fixing, positioning pin fixing, hydraulic lock fixing, and pneumatic lock fixing. In combination with the actual application scenario, this application designs a locking component with the following structure: The locking component includes a through hole 16 opened at the center position of the limiting post 113. Under normal circumstances, the limiting post 113 is arranged vertically, so the through hole 16 is also arranged vertically. A follower block 12 is slidably installed vertically in the through hole 16, and two push blocks 13 are slidably installed horizontally. The follower block 12 is located above the two push blocks 13. One end of the push block 13 can extend to the outside of the through hole 16 and can abut against the inner wall of the slide groove 112. One end of the push block 13 located in the through hole 16 is provided with an inclined surface 14 for the follower block 12 to press against. The inclined surfaces 14 on the two push blocks 13 are arranged in an inverted V-shape. Figure 7 As shown, when the follower block 12 is driven to move downward until it abuts against the inclined surface 14 of the push block 13, it continues to move downward. By relying on the wedge-shaped cooperation between the follower block 12 and the inclined surface 14, the push block 13 on the left moves to the left and the push block 13 on the right moves to the right until both push blocks 13 abut against the inner wall of the slide groove 112. This abutment will generate a large vertical friction force, which will prevent the limit post 113 from making a vertical movement out of the slide groove 112, thus locking the limit post 113 in the slide groove 112.

[0040] (4) Regarding the sliding design of the follower block 12 in the through hole 16 in (3) above, this application can set the through hole 16 as a threaded hole, and install a screw 15 on the threaded hole. The top end of the follower block 12 is rotatably connected to the bottom end of the screw 15 so that when the screw 15 rotates, the follower block 12 can be driven to move upward or downward in the through hole 16. Relying on the self-locking characteristic of the screw 15, the follower block 12 can be paused at any position in the through hole 16.

[0041] Encapsulated components:

[0042] (1) such as Figure 1As shown, the encapsulation assembly includes a lower mold 2 located on the top of the chassis 9 and an upper mold 1 located on the cover 10. When the cover 10 is closed on the top of the chassis 9, the upper mold 1 and the lower mold 2 are in a closed state. In use, the cover 10 is in the open state. The aluminum-plastic film can be first positioned using the clamp 11 and its edge placed on the lower mold 2. Then, the cover 10 is closed, and the upper mold 1 and the lower mold 2 press the edge of the aluminum-plastic film together, thus enabling the encapsulation process.

[0043] (2) For example Figure 2 and Figure 4 As shown, specifically, upper mold 1 and lower mold 2 are respectively provided with upper sealing portion 101 and lower sealing portion 201 on their adjacent sides, so that when upper mold 1 and lower mold 2 are in the closed state, upper sealing portion 101 and lower sealing portion 201 are used to clamp the edge of the aluminum-plastic film in the soft pack battery; both upper mold 1 and lower mold 2 are provided with heating elements (not shown in the figure), and the two heating elements are used to provide high heat to upper mold 1 and lower mold 2 respectively, so that the temperature at upper sealing portion 101 and lower sealing portion 201 can perform the sealing work. It should be noted that the heating elements are provided by conventional technical means in the prior art, such as heating plates, resistance wires, etc., and their installation methods include but are not limited to snap-fit, fastening, threaded connection, tenon and mortise splicing, and integral molding with the mold body.

[0044] (3) such as Figure 3 and Figure 5 As shown, both the upper sealing portion 101 and the lower sealing portion 201 have two sets of grooves 3, and the two sets of grooves 3 on the upper sealing portion 101 and the two sets of grooves 3 on the lower sealing portion 201 are arranged one-to-one. When the upper mold 1 and the lower mold 2 are in the closed state, the grooves 3 on the upper sealing portion 101 and the grooves 3 on the lower sealing portion 201 together form a receiving cavity 4 for accommodating the electrode tabs. A movable block 5 that can move toward the groove opening is slidably disposed in the groove 3, and the end of the movable block 5 is dynamically sealed to the inner wall of the groove 3. The presence of this movable block 5 can be regarded as the "bottom of the groove 3". The distance between the "bottom of the groove" and the groove opening is adjustable, thereby realizing the size adjustment of the groove 3, so that the size of the receiving cavity 4 formed by the corresponding two sets of grooves 3 in the closed state is adjustable. When dealing with pouch batteries with electrode tabs of the same type but different thicknesses, the position of the movable block 5 within the groove 3 can be adjusted according to the thickness of the tabs until the size of the receiving cavity 4 formed by the two sets of grooves 3 in the combined mode matches the thickness of the electrode tab, that is, the receiving cavity 4 can appropriately accommodate the electrode tab. Compared to the constant-sized receiving cavity 4 in the prior art, the size of the receiving cavity 4 in this application is adjustable, which can adapt to electrode tabs of corresponding thicknesses, and has a wide range of applications.

[0045] (4) such as Figure 3As shown, specifically, for the adjustment of the movable block 5 within the groove 3, this application provides a driving component within the groove 3 to drive the movable block 5 to slide. The driving component can be a conventional design in the prior art, such as a cam structure, a lead screw and slider structure, etc. This article takes the lead screw and slider structure as an example for explanation. The driving component includes an assembly strip 6 fixedly disposed within the groove 3. A bolt 7 is threaded onto the assembly strip 6, and the length direction of the bolt 7 is parallel to the groove depth direction of the groove 3. The movable block 5 is rotatably connected to the end of the bolt 7 so that when the bolt 7 rotates, the movable block 5 is driven to slide within the groove 3.

[0046] (5) For example Figure 3 As shown, in order to make the adjustable distance of the movable block 5 visible, this application provides a scale mark 8 at the position of the upper mold 1 and / or the lower mold 2 near the groove 3, and the scale mark 8 is arranged along the groove depth direction of the groove 3. During the adjustment process, the operator can know the distance between the movable block 5 and the groove 3 by relying on the scale mark 8, and thus can quickly and accurately adjust the movable block 5 to the designated position.

[0047] like Figure 2 and Figure 4 As shown, to prevent wrinkles from appearing in the portion of the aluminum-plastic film located between the two grooves 3 during the encapsulation process, this application sets an upper curved surface pressing portion 102 at the position of the upper sealing portion 101 between the two grooves 3, and a lower curved surface pressing portion 202 at the position of the lower sealing portion 201 between the two grooves 3. The curved surface structures on the lower curved surface pressing portion 202 and the upper curved surface pressing portion 102 are adapted to each other. During the subsequent encapsulation process, the portion of the aluminum-plastic film located between the two grooves 3 is placed between the upper curved surface pressing portion 102 and the lower curved surface pressing portion 202. With the presence of the upper and lower curved surfaces, the portion of the aluminum-plastic film located between the two grooves 3 can be stretched and extended, achieving a good thermo-sealing.

[0048] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A packaging fixture for a soft-pack battery with precise positioning function, characterized in that, The device includes a clamp (11) for limiting the aluminum-plastic film and an encapsulation assembly for encapsulating the aluminum-plastic film. The clamp (11) includes a support plate (111) with a slide groove (112) thereon. Two limiting posts (113) are slidably installed on the slide groove (112), and the limiting posts (113) are provided with locking components for locking the position of the limiting posts (113). Both limiting posts (113) can be in point contact with the aluminum-plastic film to achieve point contact limiting of the aluminum-plastic film. The slide groove (112) and the two limiting posts (113) together constitute a clamping component, and the clamping component is set in multiple sets to achieve multi-point limiting of the aluminum-plastic film.

2. The packaging fixture for a soft-pack battery with precise positioning function according to claim 1, characterized in that, The locking component includes a through hole (16) at the center of the limiting post (113), and a follower block (12) is slidably installed in the through hole (16) along the vertical direction. A push block (13) is horizontally movably arranged in the through hole (16), and one end of the push block (13) extends outside the through hole (16) and can abut against the inner wall of the slide groove (112). The push block (13) located in the through hole (16) has an inclined surface (14) for the follower block (12) to press against, so that when the follower block (12) moves downward, the follower block (12) can press against the inclined surface (14) and drive the push block (13) to move.

3. The packaging fixture for a soft-pack battery with precise positioning function according to claim 2, characterized in that, The through hole (16) is configured as a threaded hole, and a screw (15) is installed on the threaded hole. The top end of the follower block (12) is rotatably connected to the bottom end of the screw (15) so that when the screw (15) rotates, the follower block (12) can be driven to move upward or downward in the through hole (16).

4. The packaging fixture for a soft-pack battery with precise positioning function according to claim 3, characterized in that, The push blocks (13) are configured as two and distributed radially, and the inclined surfaces (14) on the two push blocks (13) are arranged in an inverted V-shape.

5. The packaging fixture for a soft-pack battery with precise positioning function according to claim 4, characterized in that, The support plate (111) has receiving grooves (17) at both ends of the slide groove (112), and the receiving grooves (17) are connected to the slide groove (112).

6. The packaging fixture for a soft-pack battery with precise positioning function according to claim 5, characterized in that, The encapsulation assembly includes an upper mold (1) and a lower mold (2) adapted to the upper mold (1). The upper mold (1) and the lower mold (2) are respectively provided with an upper sealing portion (101) and a lower sealing portion (201) on their adjacent sides, so that when the upper mold (1) and the lower mold (2) are in a closed state, the upper sealing portion (101) and the lower sealing portion (201) are used to clamp the edge of the aluminum-plastic film in the soft pack battery.

7. A packaging fixture for a soft-pack battery with precise positioning function according to claim 6, characterized in that, Both the upper sealing part (101) and the lower sealing part (201) are provided with two sets of grooves (3), and the two sets of grooves (3) on the upper sealing part (101) and the two sets of grooves (3) on the lower sealing part (201) are arranged one-to-one, so that when the upper mold (1) and the lower mold (2) are in the closed state, the grooves (3) on the upper sealing part (101) and the grooves (3) on the lower sealing part (201) together form a receiving cavity (4) for accommodating the electrode tab.

8. The packaging fixture for a soft-pack battery with precise positioning function according to claim 7, characterized in that, The groove (3) is slidably provided with a movable block (5) that can move toward the groove opening, so that the size of the receiving cavity (4) formed by the two corresponding sets of grooves (3) in the closed mode is adjustable.

9. A packaging fixture for a soft-pack battery with precise positioning function according to claim 7, characterized in that, The groove (3) is provided with a driving component for driving the movable block (5) to slide.

10. A packaging fixture for a soft-pack battery with precise positioning function according to claim 9, characterized in that, The driving component includes an assembly strip (6) fixedly disposed in the groove (3), on which a bolt (7) is threadedly mounted, and the length direction of the bolt (7) is parallel to the groove depth direction of the groove (3). The movable block (5) is rotatably connected to the end of the bolt (7) so that when the bolt (7) rotates, the movable block (5) is driven to slide in the groove (3).

Images