Lithium battery coating equipment

Abstract

The utility model discloses lithium battery film coating equipment, which comprises a lifting unit, a film coating unit, a film coating unit, a power supply unit, a power supply unit and a power supply unit, the lifting unit comprises a worktable and a door-shaped frame fixedly connected to the top of the worktable, an electric telescopic rod is fixedly mounted at the top of the inner wall of the door-shaped frame, and the bottom of the output end of the electric telescopic rod is fixedly connected with a T-shaped plate; the device comprises a double-shaft lead screw motor fixedly installed at the top of a T-shaped plate, the two output ends of the double-shaft lead screw motor are both in threaded connection with connecting rings in a sleeving mode, the bottoms of the two connecting rings are both rotationally connected with a pair of connecting plates, and the bottom of each connecting plate is rotationally connected with a connecting rod; a plurality of inclined grooves matched with the connecting rods are formed in the top of the T-shaped plate. The four rotating rollers are used for synchronously extruding the four included angles of the inner wall of the blue film sleeve, so that the opening in the top of the blue film sleeve is expanded, and a lithium battery can be conveniently placed in the blue film sleeve by a worker.

Description

Technical Field

[0001] This utility model relates to the field of coating equipment technology, and in particular to a lithium battery coating equipment. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloy as the positive / negative electrode material and a non-aqueous electrolyte solution. The protective film on the surface of lithium-ion batteries is mainly made of PET blue film. PET insulating film is a transparent and tough plastic film. PET film has good flexibility and tensile strength, with a tensile strength of about 150-200MPa. This makes it less prone to breakage during the wrapping process, allowing it to adhere well to the surface of the battery cell and provide effective protection. The film can act as a physical barrier, effectively reducing the direct damage to the battery cell caused by external mechanical forces.

[0003] Some blue film is in the form of a bag and is used to cover lithium batteries. After being hot-pressed by a hot press plate, the blue film can tightly wrap the lithium battery to form a protective layer. However, during the packaging process, because the size of the blue film is close to that of the lithium battery and the inner wall of the blue film has a large friction, it is difficult for workers to quickly and completely cover the lithium battery with the blue film, resulting in low efficiency of lithium battery packaging. Therefore, a lithium battery packaging equipment is proposed. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current lithium battery coating equipment, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a lithium battery coating equipment, which is suitable for solving the problem that workers have difficulty quickly and completely wrapping the blue film onto the lithium battery, resulting in low efficiency of lithium battery coating.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a lithium battery coating device, comprising:

[0008] The lifting unit includes a worktable and a gantry frame fixedly connected to the top of the worktable. An electric telescopic rod is fixedly installed on the top of the inner wall of the gantry frame, and a T-plate is fixedly connected to the bottom of the output end of the electric telescopic rod.

[0009] The coating unit includes a dual-axis lead screw motor fixedly mounted on the top of a T-shaped plate. Both output ends of the dual-axis lead screw motor are threaded with connecting rings. The bottom of each of the two connecting rings is rotatably connected to a pair of connecting plates. The bottom of each connecting plate is rotatably connected to a connecting rod. The top of the T-shaped plate has multiple inclined slots that fit the connecting rods. The bottom end of each connecting rod passes through the corresponding inclined slot and is fixedly connected to a rotating roller. The coating unit also includes a hot pressing assembly for hot pressing the blue film sleeve.

[0010] In a preferred embodiment of the lithium battery coating equipment described in this utility model, the hot pressing assembly includes two sliding plates slidably disposed on the top of the workbench, with a hot pressing plate fixedly connected to the same side of each of the two sliding plates. A threaded rod passing through the workbench is rotatably connected to one side of the workbench, and both sliding plates are threaded onto the threaded rod. A heating plate is fixedly connected to the top of the workbench, and a blue film sleeve is placed on the top of the heating plate.

[0011] In a preferred embodiment of the lithium battery coating equipment described in this utility model, a fan is fixedly connected to the bottom of the T-shaped plate, and multiple air inlets are provided on the top of the T-shaped plate.

[0012] In a preferred embodiment of the lithium battery coating equipment described in this utility model, the rotating roller is shaped like an inverted cone and the bottom end of the rotating roller is spherical.

[0013] In a preferred embodiment of the lithium battery coating equipment described in this utility model, a rectangular groove is provided on the top of the worktable, and multiple rotating rods are rotatably connected within the rectangular groove of the worktable.

[0014] In a preferred embodiment of the lithium battery coating equipment of this utility model, two fixing plates are fixedly connected to one side of the gantry frame, and two T-shaped rods are fixedly connected to the top of the T-shaped plate, with the two T-shaped plates slidingly penetrating the corresponding fixing plates.

[0015] The beneficial effects of this utility model are as follows: by aligning four rotating rollers with the four opposite corners of the inner wall of the blue film sleeve, and then using a dual-axis lead screw motor to move the two connecting plates away from each other, the four rotating rollers can be used to simultaneously squeeze the four corners of the inner wall of the blue film sleeve, thereby expanding the opening at the top of the blue film sleeve, so that workers can place the lithium battery inside the blue film sleeve, thus improving the efficiency of the wrapping. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0017] Figure 1 This is a schematic diagram of the overall structure of the lithium battery packing equipment proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the coating unit structure proposed in this utility model;

[0019] Figure 3 This is a schematic diagram showing the positions of the connecting rod and the inclined groove proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the hot-pressing assembly structure proposed in this utility model. Attached image description:

[0022] 100. Lifting unit; 101. Workbench; 102. Gantry frame; 103. Electric telescopic rod; 104. T-plate; 105. Fixing plate; 106. T-bar; 200. Coating unit; 201. Dual-axis lead screw motor; 202. Connecting ring; 203. Connecting plate; 204. Connecting rod; 205. Inclined groove; 206. Rotary roller; 207. Hot pressing assembly; 2071. Sliding plate; 2072. Hot pressing plate; 2073. Threaded rod; 2074. Heating plate; 208. Electric fan; 209. Air inlet; 210. Rotating rod. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Example

[0028] Reference Figures 1-4 As an embodiment of the present invention, a lithium battery coating device is provided, comprising: a lifting unit 100 and a coating unit 200;

[0029] The lifting unit 100 includes a workbench 101 and a gantry frame 102 fixedly connected to the top of the workbench 101. An electric telescopic rod 103 is fixedly installed on the top of the inner wall of the gantry frame 102, and a T-plate 104 is fixedly connected to the bottom of the output end of the electric telescopic rod 103.

[0030] The coating unit 200 includes a dual-axis lead screw motor 201 fixedly installed on the top of the T-plate 104. Both output ends of the dual-axis lead screw motor 201 are threaded with connecting rings 202. The bottom of each connecting ring 202 is rotatably connected to a pair of connecting plates 203. The bottom of each connecting plate 203 is rotatably connected to a connecting rod 204. The top of the T-plate 104 is provided with multiple inclined grooves 205 that fit the connecting rods 204. The bottom end of each connecting rod 204 passes through the corresponding inclined groove 205 and is fixedly connected to a rotating roller 206. The coating unit 200 also includes a hot pressing assembly 207 for hot pressing the blue film sleeve.

[0031] Specifically, the hot pressing assembly 207 includes two sliding plates 2071 slidably disposed on the top of the workbench 101. A hot pressing plate 2072 is fixedly connected to the same side of both sliding plates 2071. A threaded rod 2073 passing through the workbench 101 is rotatably connected to one side of the workbench 101. Both sliding plates 2071 are threaded onto the threaded rod 2073. A heating plate 2074 is fixedly connected to the top of the workbench 101. A blue film sleeve is placed on the top of the heating plate 2074.

[0032] The blue film sleeve is placed on the heating plate 2074. The electric telescopic rod 103 is used to drive the T-shaped plate 104 to rise and fall, so that its four rotating rollers 206 can be inserted into the blue film sleeve. The four rotating rollers 206 are arranged in a quadrilateral shape. When the bottom of the four rotating rollers 206 is inside the blue film sleeve, the four rotating rollers 206 are respectively aligned with the four diagonals of the inner wall of the blue film sleeve. The two output ends of the dual-axis screw motor 201 are threaded, and the threads of the two output ends are in opposite directions. When the two output ends of the dual-axis screw motor 201 rotate synchronously, the two connecting plates 203 can move away from each other or move closer to each other. When the two connecting plates 203 move away from each other, the two connecting rods 204 at the bottom of the connecting plate 203 will slide along their respective inclined grooves 205. The four inclined grooves 205 on the top of the T-shaped plate 104 are arranged diagonally.

[0033] When the four connecting rods 204 move along their respective inclined grooves 205, the two connecting rods 204 on the same connecting plate 203 move away from each other, thereby causing the four rotating rollers 206 to move away from each other diagonally and squeeze the included angle inside the blue film sleeve. By squeezing the four included angles inside the blue film sleeve, the opening at the top of the blue film sleeve is expanded. The four rotating rollers 206 are not completely inserted into the blue film sleeve, and there is space between the T-plate 104 and the blue film sleeve for placing the lithium battery. This makes it easier for workers to place the lithium battery into the blue film sleeve. After placement, the two output ends of the dual-axis lead screw motor 201 rotate in opposite directions, causing the two connecting plates 203 to move closer to each other. At this time, the four rotating rollers 206 converge diagonally to stop expanding the blue film sleeve. Then, the electric telescopic rod 103 drives the T-plate 104 to rise, causing the four rotating rollers 206 to leave the blue film sleeve. Then, the blue film sleeve retracts and automatically wraps the lithium battery.

[0034] The threaded rod 2073 has two threads in opposite directions. Two sliding plates 2071 are threaded onto the two threads in opposite directions. After the blue film sleeve wraps around the lithium battery, the threaded rod 2073 is rotated so that the two sliding plates 2071 drive the two hot pressing plates 2072 to move closer together and form a rectangular frame. The hot pressing plates 2072 and the heating plates 2074 are both equipped with resistance wires. The hot pressing plates 2072 and the heating plates 2074 generate heat by heating the resistance wires. The hot pressing plates 2072 and the heating plates 2074 can heat-press the blue film sleeve, so that the blue film sleeve is tightly wrapped around the outer wall of the lithium battery to complete the wrapping. After the wrapping is completed, the threaded rod 2073 is rotated in the opposite direction to remove the wrapped lithium battery.

[0035] In addition, a fan 208 is fixedly connected to the bottom of the T-shaped plate 104, and multiple air inlets 209 are opened on the top of the T-shaped plate 104.

[0036] The electric fan 208 is equipped with a motor for driving the fan blades to rotate. After the blue film sleeve is hot-pressed and wrapped around the lithium battery, the hot pressing plate 2072 and the two heating plates 2074 are no longer heated. Then, the threaded rod 2073 is rotated to move the two hot pressing plates 2072 away from each other. Then, the electric fan 208 blows air onto the blue film sleeve to cool and solidify it. The air inlet 209 allows the electric fan 208 to deliver air downwards to the surface of the blue film sleeve. The electric fan 208 can also cool the hot pressing plate 2072 and the heating plates 2074 to prevent the new blue film sleeve from being heated.

[0037] Furthermore, the rotating roller 206 is shaped like an inverted cone, and the bottom end of the rotating roller 206 is spherical. A rectangular groove is provided on the top of the worktable 101, and multiple rotating rods 210 are rotatably connected in the rectangular groove of the worktable 101.

[0038] The diameter of the rollers 206 decreases from top to bottom. When the four rollers 206 expand the blue film sleeve, the bottom of the blue film sleeve is sealed, making it more difficult to expand closer to the bottom. By using an inverted conical design, the expansion range of the blue film sleeve is smaller closer to the bottom, thereby reducing the load on the dual-axis lead screw motor 201. The opening at the top of the blue film sleeve is expanded into an inverted trapezoid to facilitate the placement of lithium batteries by workers. The bottom of the rollers 206 is spherical to ensure that the rollers 206 do not leave marks on the inner wall of the blue film sleeve.

[0039] After the lithium battery is coated, it moves towards the rotating rod 210. Once the lithium battery is on the rotating rod 210, it can roll on multiple rotating rods 210. As a result, the worker needs to lift the coated lithium battery and use the rotating rod 210 to quickly remove the lithium battery from the two hot press plates 2072, thus saving the worker's physical strength.

[0040] Furthermore, two fixing plates 105 are fixedly connected to one side of the portal frame 102, and two T-shaped rods 106 are fixedly connected to the top of the T-shaped plate 104. The two T-shaped plates 104 slide through the corresponding fixing plates 105 respectively.

[0041] When the electric telescopic rod 103 drives the T-shaped plate 104 to rise and fall, the two T-shaped rods 106 will slide along the inner walls of the two fixed plates 105 respectively. The two T-shaped plates 104 and the electric telescopic rod 103 form a three-point distribution to improve the stability of the T-shaped plate 104 during the rising and falling process.

[0042] During use, the blue film sleeve is first placed on the heating plate 2074. Then, the electric telescopic rod 103 drives the T-plate 104 to descend, so that the bottom ends of its four rollers 206 are inside the blue film sleeve. Next, the dual-axis lead screw motor 201 is started to move the two connecting plates 203 away from each other. The two connecting plates 203 will cause the two connecting rods 204 at their bottom to slide along their respective inclined grooves 205, and cause the four rollers 206 to squeeze the four included corners inside the blue film sleeve. By squeezing the four included corners of the blue film sleeve, the opening at the top of the blue film sleeve is expanded, which makes it easier for workers to place the lithium battery inside the blue film sleeve. After placement, the dual-axis lead screw motor 201 rotates in the opposite direction, so that the two connecting plates 203 move closer to each other. At this time, the four rollers 206 gather together and no longer expand the blue film sleeve. Then, the electric telescopic rod 103 drives the T-plate 104 to rise, so that the four rollers 206 are removed from the blue film sleeve.

[0043] After the blue film sleeve automatically wraps around the lithium battery, the threaded rod 2073 is rotated so that its two sliding plates 2071 drive the two hot pressing plates 2072 to move closer together. The hot pressing plates 2072 and the heating plate 2074 can heat-press the blue film sleeve, so that the blue film sleeve is tightly wrapped around the outer wall of the lithium battery to complete the wrapping. After the wrapping is completed, the threaded rod 2073 is rotated in the opposite direction so that the two hot pressing plates 2072 move away from each other. Then, the fan 208 blows air on the blue film sleeve to cool and solidify it. After solidification, the lithium battery is moved in the direction of the rotating rod 210, and the lithium battery is quickly removed from the two hot pressing plates 2072 by the rotating rod 210.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A lithium battery coating device, characterized in that, include: The lifting unit (100) includes a workbench (101) and a gantry frame (102) fixedly connected to the top of the workbench (101). An electric telescopic rod (103) is fixedly installed on the top of the inner wall of the gantry frame (102), and a T-plate (104) is fixedly connected to the bottom of the output end of the electric telescopic rod (103). The coating unit (200) includes a dual-axis lead screw motor (201) fixedly installed on the top of a T-plate (104). Both output ends of the dual-axis lead screw motor (201) are threaded with connecting rings (202). The bottom of each of the two connecting rings (202) is rotatably connected to a pair of connecting plates (203). The bottom of each connecting plate (203) is rotatably connected to a connecting rod (204). The top of the T-plate (104) is provided with multiple inclined grooves (205) that fit the connecting rods (204). The bottom end of each connecting rod (204) passes through the corresponding inclined groove (205) and is fixedly connected to a rotating roller (206). The coating unit (200) also includes a hot pressing assembly (207) for hot pressing the blue film sleeve.

2. The lithium battery coating equipment according to claim 1, characterized in that: The hot pressing assembly (207) includes two sliding plates (2071) slidably disposed on the top of the workbench (101). A hot pressing plate (2072) is fixedly connected to the same side of both sliding plates (2071). A threaded rod (2073) is rotatably connected to one side of the workbench (101) and passes through the workbench (101). Both sliding plates (2071) are threaded onto the threaded rod (2073). A heating plate (2074) is fixedly connected to the top of the workbench (101), and a blue film sleeve is placed on the top of the heating plate (2074).

3. The lithium battery coating equipment according to claim 1, characterized in that: A fan (208) is fixedly connected to the bottom of the T-shaped plate (104), and multiple air inlets (209) are opened on the top of the T-shaped plate (104).

4. The lithium battery coating equipment according to claim 1, characterized in that: The rotating roller (206) is shaped like an inverted cone, and the bottom end of the rotating roller (206) is spherical.

5. A lithium battery coating device according to claim 2, characterized in that: The top of the workbench (101) is provided with a rectangular slot, and multiple rotating rods (210) are rotatably connected in the rectangular slot of the workbench (101).

6. A lithium battery coating device according to claim 3, characterized in that: Two fixing plates (105) are fixedly connected to one side of the portal frame (102), and two T-shaped rods (106) are fixedly connected to the top of the T-shaped plate (104). The two T-shaped plates (104) slide through the corresponding fixing plates (105).

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