Manual film coating device for battery cell

Abstract

The utility model discloses a manual film coating device for a battery cell. The manual film coating device comprises a bottom plate, the unwinding mechanism is mounted on the bottom plate and is used for unwinding a protective film; the positioning mechanism is mounted on the bottom plate and is used for positioning a battery cell; and the compacting mechanism is mounted on the bottom plate and is used for compacting the protective film in the unwinding mechanism on the surface of the battery cell in the positioning mechanism. The film coating device has the characteristics of simple structure, convenience in operation, low manufacturing cost and the like, is suitable for small-batch production and film coating treatment of trial-manufactured battery cells, and can be compatible with film coating of battery cells with different sizes.

Description

A manual coating device for battery cells Technical Field

[0001] This utility model belongs to the field of battery manufacturing technology, specifically relating to a manual cell coating device. Background Technology

[0002] Cell coating, as the final step in battery cell manufacturing, ensures both insulation and aesthetics. Existing fully automated coating equipment is complex and costly, making it inefficient for small-batch production or trial production. This is especially true for coating small quantities of cells with varying sizes, where automated production lines incur high changeover costs and long lead times. Therefore, it is necessary to design a simpler coating device to address these issues. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a manual battery cell coating device, which features simple structure, convenient operation, and low manufacturing cost. It is suitable for coating of small-batch production and trial production battery cells, and can be compatible with coating of battery cells of different sizes.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a manual coating device for battery cells, comprising: a base plate; an unwinding mechanism mounted on the base plate for feeding protective film; a positioning mechanism mounted on the base plate for positioning the battery cells; and a compaction mechanism mounted on the base plate for pressing the protective film in the unwinding mechanism onto the surface of the battery cells in the positioning mechanism.

[0005] The above technical solution achieves coating treatment of battery cells of different sizes through unwinding mechanism, positioning mechanism and compaction mechanism. It has the characteristics of simple structure, convenient operation and low manufacturing cost, and is suitable for coating treatment of small batch production and trial production battery cells.

[0006] Furthermore, the unwinding mechanism includes: an unwinding support, a first transition support, and a second transition support mounted on the base plate; an unwinding shaft for carrying the protective film is mounted on the unwinding support via an unwinding bearing; a release shaft for adjusting the unwinding tension of the protective film is mounted on one end of a connecting plate via a release bearing, and the other end of the connecting plate is hinged to the unwinding support; one end of a spring is connected to the connecting plate, and the other end of the spring is connected to the unwinding support; a first transition shaft is mounted on a first transition support via a first transition bearing; and a second transition shaft is mounted on a second transition support via a second transition bearing.

[0007] The above technical solution achieves the orderly release of the protective film through the unwinding shaft, release shaft, and transition shaft, which can effectively regulate the tension of the protective film during the release process.

[0008] Furthermore, an anti-rotation chuck is provided on the unwinding shaft.

[0009] The above technical solution, through the anti-rotation chuck, can prevent unnecessary rotation of the unwinding shaft, thereby ensuring the controllability of the protective film tension during the unwinding process.

[0010] Furthermore, a limit stop block is provided on the unwinding shaft; a limit ring is provided on the first transition shaft; and a limit ring is provided on the second transition shaft.

[0011] The above technical solution, through the limiting block and limiting ring, can be adapted to protective films of different specifications, thereby improving the applicability of the manual coating device for battery cells.

[0012] Furthermore, the positioning mechanism includes: a first long-side stop bar and a second long-side stop bar mounted on the base plate for positioning the long side of the battery cell, the first long-side stop bar and the second long-side stop bar being located on both sides of the battery cell respectively; and a short-side stop bar mounted on the base plate for positioning the short side of the battery cell.

[0013] The above technical solution achieves effective positioning of the battery cell through the long side baffle and the short side baffle. At the same time, by adjusting the corresponding positioning blocks to change the installation position of the long side baffle and the short side baffle, the purpose of positioning battery cells of different specifications can be achieved, thereby improving the applicability of the manual battery cell coating device.

[0014] Furthermore, the first long-side stop bar is provided with a first long-side grooved strip, and the second long-side stop bar is provided with a second long-side grooved strip.

[0015] The above technical solution, by setting the cutting strip, can achieve accurate cutting of the protective film, thereby improving the efficiency of cell coating, reducing material waste, and lowering production costs.

[0016] Furthermore, the compaction mechanism includes: a compaction shaft for compacting the protective film onto the surface of the battery cell, the compaction shaft being mounted on a slider assembly, the slider assembly being slidably connected to a slide rail assembly, and the slide rail assembly being mounted on a base plate.

[0017] The above technical solution uses a slider assembly and a slide rail assembly to achieve the reciprocating rolling of the compaction shaft on the battery cell, thereby pressing the protective film firmly onto the surface of the battery cell. The pressure exerted by the compaction shaft on the surface of the battery cell is more uniform, reducing the operational difficulty of the manual battery cell coating device, improving the coating and compaction efficiency of the manual battery cell coating device, and reducing the labor intensity of workers.

[0018] Furthermore, the compaction mechanism also includes a limiting bolt mounted on the base plate for limiting the movement position of the compaction shaft.

[0019] The above technical solution can control the movement range of the compaction shaft through the limit bolt, prevent the compaction shaft from moving beyond the limit, reduce the operation difficulty of the manual cell coating device, improve the coating and compaction efficiency of the manual cell coating device, and reduce the labor intensity of workers.

[0020] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model installs an unwinding mechanism, a positioning mechanism, and a compaction mechanism on a base plate. The unwinding mechanism is used to unwind the protective film, the positioning mechanism is used to position the battery cell, and the compaction mechanism is used to press the protective film in the unwinding mechanism onto the surface of the battery cell in the positioning mechanism, thereby realizing the coating treatment of battery cells of different sizes. It has the characteristics of simple structure, convenient operation, and low manufacturing cost, and is suitable for small-batch production and trial production of battery cells. Attached Figure Description

[0021] Figure 1 is a schematic diagram of the overall structure of a manual battery cell coating device provided in an embodiment of the present invention;

[0022] Figure 2 is a schematic diagram of the unwinding mechanism in Figure 1;

[0023] Figure 3 is a schematic diagram of the positioning mechanism in Figure 1;

[0024] Figure 4 is a partial cross-sectional view of Figure 3;

[0025] Figure 5 is a schematic diagram of the compaction mechanism in Figure 1;

[0026] In the diagram: 1. Unwinding mechanism; 100. Protective film; 101. Unwinding support; 102. Unwinding bearing; 103. Unwinding shaft; 104. Anti-rotation chuck; 105. Limiting block; 106. Connecting plate; 107. Release bearing; 108. Release shaft; 109. Spring; 110. Transition support one; 111. Transition bearing one; 112. Transition shaft one; 113. Limiting ring one; 114. Transition support two; 115. Transition bearing two; 116. Transition shaft two; 117. Limiting ring two;

[0027] 2. Positioning mechanism; 200. Battery cell; 201. Base plate; 202. Long side retaining strip one; 203. Long side slotted strip one; 204. Long side retaining strip two; 205. Long side slotted strip two; 206. Short side retaining strip;

[0028] 3. Compaction mechanism; 301. Guide rail mounting base; 302. Guide rail; 303. Slider; 304. Connecting rod; 305. Mounting plate; 306. Compaction shaft; 307. Limit bolt mounting plate; 308. Limit bolt. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0030] As shown in Figures 1 to 5, a manual coating device for battery cells includes: a base plate 201, an unwinding mechanism 1 for feeding the protective film 100, a positioning mechanism 2 for positioning the battery cells, and a compaction mechanism 3 for pressing the protective film 100 in the unwinding mechanism 1 onto the surface of the battery cell 200 in the positioning mechanism 2.

[0031] The following section describes the structure and usage of the manual coating device for battery cells described in this invention by performing a coating operation on blade battery cells.

[0032] As shown in Figure 2, the unwinding mechanism 1 is used for unwinding the blue film (protective film 100). The unwinding mechanism 1 includes an unwinding assembly, a first transition assembly, and a second transition assembly. The unwinding assembly includes an unwinding support 101, an unwinding bearing 102 mounted above the unwinding support 101, an unwinding shaft 103 passing through the unwinding bearing 102 and mounted on the unwinding support 101 via the unwinding bearing 102, anti-rotation chucks 104 at both ends for preventing rotation at the shaft end of the unwinding shaft 103, and limit blocks 105 for fixing the position of the blue film roll on the unwinding shaft 103 to prevent the blue film roll from swinging back and forth and affecting the unwinding effect. The connecting plate 106 has a round hole and a waist hole, and is hinged to the unwinding support 101 via a hinge bolt. A release bearing 107 is fixed to the other end of the connecting plate 106, and a release shaft 108 is installed between the two release bearings 107. A spring 109 is also installed between the connecting plate 106 and the unwinding support 101.

[0033] Transition assembly one includes a transition support 110, with a transition bearing 111 mounted above the transition support 110. A transition shaft 112 is installed between the two transition bearings 111. Limiting rings 113 are installed on both sides of the transition shaft 112 to limit the position of the blue film and prevent it from swinging back and forth, thus affecting the film placement effect. Transition assembly two includes a transition support 114, with a transition bearing 115 mounted above the transition support 114. A transition shaft 116 is installed between the two transition bearings 115. Limiting rings 117 are installed on both sides of the transition shaft 116 to limit the position of the blue film and prevent it from swinging back and forth, thus affecting the film placement effect. Referring to Figure 1, the blue film passes through the release shaft 108, transition shaft one 112, and transition shaft two 116. When the tension speed of the blue film at the end is uneven, the unwinding speed of the blue film will also be uneven. The release shaft 108, together with the connecting plate 106, will rotate around the unwinding support 101 to compensate for the uneven speed. After the compensation is completed, it will return to its original position under the action of the spring 109. The unwinding support 101, transition support one 110, and transition support two 114 are fixed on the base plate 201. In addition, by adjusting the distance between the two limiting blocks 105, the limiting ring one 113, and the limiting ring two 117, it is possible to accommodate blue films with different roll widths.

[0034] As shown in Figure 3, the positioning mechanism 2 is used to position the battery cell to be coated. The battery cell 200 to be coated is placed on the base plate 201. The base plate 201 is provided with a first long side stop 202 and a second long side stop 204 for positioning the long side of the battery cell 200. The first long side stop 202 and the second long side stop 204 are located on both sides of the battery cell 200, respectively. The base plate 201 is also provided with a second short side stop 206 for positioning the two short sides of the battery cell 200.

[0035] As shown in Figure 4, long-side stop bars 1 (202) and 2 (204) are respectively equipped with long-side grooving bars 1 (203) and 2 (205) for confirming the beginning and end positions of the blue film. After the blue film is unwound, it is pulled to the position b of the groove of the long-side grooving bar 2 (205), which is the beginning of the blue film. Then, the rollers (compacting shaft 306) of the compaction mechanism 3 compact the blue film. After the battery cell 200 rotates 180°, the film continues to be pulled until it is aligned to the position a of the groove of the long-side grooving bar 1 (203), which is the end of the blue film. The blue film is cut at this position with a cutter, and then the rollers of the compaction mechanism 3 compact the blue film, thus completing the wrapping of one battery cell. Long-side grooving bars 1 (203) and 2 (205) are used to assist in confirming the beginning and end positions of the blue film, ensuring the consistency of the blue film length each time. By changing the long and short side positioning blocks, it is possible to quickly change the size of the battery cell.

[0036] As shown in Figure 5, the compaction mechanism 3 is used to compact the blue film covering the battery cell to ensure the coating effect. The compaction mechanism 3 includes a compaction shaft 306 for pressing the protective film 100 onto the surface of the battery cell 200. The compaction shaft 306 is mounted on the slider assembly, which is slidably connected to the slide rail assembly, which is mounted on the base plate 201.

[0037] The slide rail assembly includes a guide rail mounting base 301, which is mounted on a base plate 201. A guide rail 302 is mounted on the guide rail mounting base 301, and a slider 303 is slidably mounted on the guide rail 302. A connecting rod 304 is mounted above the slider 303, and mounting plates 305 are mounted on both sides below the connecting rod 304. Compactor shafts 306 are mounted on the mounting plates 305. After the battery cell 200 is covered with a blue film, the sliding of the slider 303 will cause the compactor shafts 306 to move back and forth above the battery cell 200, performing the blue film compaction action. Limiting bolts 308 are installed at both ends of the guide rail 302, and the limiting bolts 308 are mounted on the base plate 201 through limiting bolt mounting plates 307. The height of the compactor shafts 306 can be adjusted by replacing the mounting plates 305 to accommodate the compaction of battery cells of different thicknesses.

[0038] This utility model has a relatively simple structure, low manufacturing cost, and convenient operation. It can also be compatible with different sizes of battery cell coatings by adjusting some positioning and mounting blocks, and has a wide range of applications.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A manual cell coating device, characterized in that, include: Base plate (201); unwinding mechanism (1) mounted on the base plate (201) for unwinding the protective film (100); positioning mechanism (2) mounted on the base plate (201) for positioning the battery cell; compaction mechanism (3) mounted on the base plate (201) for compacting the protective film (100) in the unwinding mechanism (1) onto the surface of the battery cell (200) in the positioning mechanism (2).

2. The manual cell coating device according to claim 1, characterized in that, The unwinding mechanism (1) includes: an unwinding support (101), a transition support one (110), and a transition support two (114) mounted on a base plate (201); an unwinding shaft (103) for carrying the protective film (100) is mounted on the unwinding support (101) via an unwinding bearing (102); a release shaft (108) for adjusting the unwinding tension of the protective film (100) is mounted on one end of a connecting plate (106) via a release bearing (107), and the other end of the connecting plate (106) is hinged to the unwinding support (101); one end of a spring (109) is connected to the connecting plate (106), and the other end of the spring (109) is connected to the unwinding support (101); a transition shaft one (112) is mounted on a transition support one (110) via a transition bearing one (111); and a transition shaft two (116) is mounted on a transition support two (114) via a transition bearing two (115).

3. The manual cell coating device according to claim 2, characterized in that, An anti-rotation chuck (104) is provided on the unwinding shaft (103).

4. The manual cell coating device according to claim 2, characterized in that, The unwinding shaft (103) is provided with a limit stop block (105); the first transition shaft (112) is provided with a limit ring (113); the second transition shaft (116) is provided with a limit ring (117).

5. The manual cell coating device according to claim 1, characterized in that, The positioning mechanism (2) includes: a long side stop bar one (202) and a long side stop bar two (204) installed on the base plate (201) for positioning the long side of the battery cell (200), the long side stop bar one (202) and the long side stop bar two (204) being located on both sides of the battery cell (200); and a short side stop bar (206) installed on the base plate (201) for positioning the short side of the battery cell (200).

6. The manual cell coating device according to claim 5, characterized in that, The first long side stop bar (202) is provided with a first long side grooved bar (203), and the second long side stop bar (204) is provided with a second long side grooved bar (205).

7. The manual cell coating device according to claim 1, characterized in that, The compaction mechanism (3) includes a compaction shaft (306) for compacting the protective film (100) onto the surface of the battery cell (200). The compaction shaft (306) is mounted on a slider assembly, which is slidably connected to a slide rail assembly, which is mounted on a base plate (201).

8. The manual cell coating device according to claim 1, characterized in that, The compaction mechanism (3) further includes a limiting bolt (308) mounted on the base plate (201) for limiting the movement position of the compaction shaft (306).

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