Lithium battery edge sealing device

Abstract

The utility model relates to the technical field of lithium battery production and processing, and discloses a lithium battery edge sealing device which comprises an edge sealing workbench, a multi-station edge sealing mechanism is arranged on the edge sealing workbench, the multi-station edge sealing mechanism comprises a hollow base and a lifting support, the hollow base is fixedly installed on the inner wall of the edge sealing workbench, and the lifting support is fixedly installed on the inner wall of the edge sealing workbench. And the top of the hollow base is fixedly connected with a shunting cover support. According to the utility model, through the matching of the shunting cover support and the limiting piece, the movable limiting treatment of the lithium battery structure can be completed, a user can connect the end part of the connecting hose to an external air source in advance, and air is conveyed into the inner cavity of the hollow base through the external air source, so that the rubber cover is promoted to generate expansion elastic deformation; the lithium battery structures are clamped and fixed to the inner walls of the limiting pieces, the function of synchronously fixing the multiple lithium battery structures is achieved, the function of conducting synchronous edge sealing treatment on the multiple lithium battery structures can be achieved in cooperation with work of the hot-pressing disc body, and the edge sealing machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production and processing, and specifically to a lithium battery edge sealing device. Background Art

[0002] In lithium batteries, aluminum-plastic film is needed to wrap bare cells, which protects the bare cells. In the production process of lithium batteries, after the aluminum-plastic film wraps the bare cells, it is necessary to seal the edges, that is, to seal the edges of the wrapping, and use heat pressing to bond the edges of the aluminum-plastic film together.

[0003] A Chinese patent discloses a battery edge sealing device, the publication number is CN209843869U, and the technical solution disclosed in the patent document is as follows: it includes a body, a heating and pressing assembly arranged on the body, the heating and pressing assembly includes a movable upper edge sealing heating block and a lower edge sealing heating block fixedly connected to the side of the body, a guide rod is provided on the side of the body, the upper edge sealing heating block is fixedly connected to the bottom of the guide rod, and the upper edge sealing heating block can move up and down on the side of the body through the guide rod and press with the lower edge sealing heating block

[0004] In order to solve the problem that the heating tube can easily burn the workers' fingers, the existing technology adopts the method of setting up a heat-insulating transparent cover, i.e., a heat-insulating board. However, the efficiency of hot pressing and edge sealing is still low. This structure can only perform hot pressing and edge sealing on one lithium battery at a time, resulting in low production and processing efficiency of lithium batteries, which needs to be improved. Utility Model Content

[0005] The utility model aims to provide a lithium battery edge sealing device to solve the problem of low efficiency of hot pressing edge sealing of lithium batteries in the prior art.

[0006] The utility model provides the following technical scheme: a lithium battery edge sealing device comprises an edge sealing workbench, a multi-station edge sealing mechanism is arranged on the edge sealing workbench, the multi-station edge sealing mechanism comprises a hollow base and a lifting bracket, the hollow base is fixedly installed on the inner wall of the edge sealing workbench, the top of the hollow base is fixedly connected with a diverter cover support, the top of the diverter cover support is welded with a limiting piece, the top of the diverter cover support is fixedly connected with a limiting cylinder, the inner wall of the limiting cylinder is fixedly connected with a rubber cover, the center of the bottom of the hollow base is fixedly connected with a square through pipe, the left side of the square through pipe is fixedly connected with a solenoid valve 1, the right side of the square through pipe is fixedly connected with a solenoid valve 2, the front of the square through pipe is fixedly connected with a digital pressure gauge, the end of the solenoid valve 2 away from the square through pipe is threadedly connected with a connecting hose, the limiting piece cooperates with the diverter cover support to limit the lithium battery structure, and inflating the diverter cover support to cause the rubber cover to expand to complete the fixation of the lithium battery structure, thereby facilitating users to perform synchronous fixation processing on the lithium battery structure.

[0007] As a preferred embodiment of the above technical solution, the lifting bracket is fixedly installed on the top of the edge banding workbench, and a stepping cylinder is fixedly installed at the center of the top of the lifting bracket. The moving end of the stepping cylinder extends to the bottom of the lifting bracket and is fixedly connected to a lifting seat. The stepping cylinder can drive the hot pressing plate body to rise and fall.

[0008] As a preferred embodiment of the above technical solution, a stabilizing slide bar is welded on the top of the lifting seat, and the outer wall of the stabilizing slide bar is slidably connected to the inner wall of the lifting bracket. The bottom of the lifting seat is detachably connected to a hot pressing plate body, and the hot pressing plate body can be operated to perform heating work, thereby hot pressing and sealing the lithium battery structure.

[0009] As a preferred embodiment of the above technical solution, the bottom of the lifting bracket is movably connected with a hollow plate, the top of the hollow plate is fixedly installed with a plastic clip, the outer wall of the plastic clip is movably connected to the outer wall of the lifting bracket, and the plastic clip fixes the hollow plate to the lifting bracket, making it convenient for users to disassemble and maintain the hollow plate.

[0010] As a preferred embodiment of the above technical solution, a mesh plate is fixedly installed on the bottom of the inner wall of the hollow plate, and an air suction hose is threadedly connected to the top of the hollow plate. The mesh plate can block larger impurities in the air to ensure the safety of the suction fan body.

[0011] As a preferred embodiment of the above technical solution, a vertical air cylinder is fixedly installed on the top of the lifting bracket, the end of the suction hose away from the hollow plate is fixedly connected to the side of the vertical air cylinder, and the middle part of the vertical air cylinder is fixedly connected to a suction fan body to control the operation of the suction fan body, so as to absorb the odor generated by the heat pressing and transport it to the inside of the movable pipeline.

[0012] As a preferred embodiment of the above technical solution, a movable pipe located above the suction fan body is movably connected to the back side of the vertical air cylinder, a polyester fiber barrier net is fixedly installed on the inner wall of the movable pipe, and the inner cavity of the movable pipe is filled with activated carbon located above the polyester fiber barrier net. The polyester fiber barrier net can block the activated carbon in the inner cavity of the vertical air cylinder, and the activated carbon absorbs the odor.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model can complete the movable limiting processing of the lithium battery structure through the cooperation of the diverter cover support and the limiting piece. The user can pre-connect the end of the connecting hose to the external gas source, and transmit gas to the inner cavity of the hollow base through the external gas source, so as to cause the rubber cover to produce elastic deformation of expansion, and fix the lithium battery structure on the inner wall of the limiting piece, thereby realizing the function of synchronously fixing several lithium battery structures. In combination with the work of the hot pressing plate main body, the function of synchronously sealing the edge of several lithium battery structures can be completed, thereby improving the efficiency of edge sealing processing and increasing the speed of lithium battery production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall exploded structure of the splitter cover support of the utility model;

[0017] Figure 3 This is a schematic diagram of the bottom structure of the hollow base of the utility model;

[0018] Figure 4 This is a schematic diagram of the bottom structure of the hollow slab of the utility model;

[0019] Figure 5 It is a partially cutaway structural schematic diagram of the movable pipeline of the utility model.

[0020] In the figure: 1. edge banding workbench; 2. multi-station edge banding mechanism; 21. hollow base; 211. square through pipe; 212. solenoid valve 1; 213. digital pressure gauge; 214. solenoid valve 2; 215. connecting hose; 22. splitter cover support; 221. limiter; 222. limiter cylinder; 223. rubber cover; 23. lifting bracket; 24. stepping cylinder; 25. stabilizing slide bar; 26. lifting seat; 27. hot pressing plate body; 28. hollow plate; 281. mesh plate; 282. plastic card; 283. suction hose; 29. ​​vertical air cylinder; 291. suction fan body; 292. movable pipeline; 293. polyester fiber barrier net. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] like Figure 1-Figure 3As shown, the utility model provides a technical solution: a lithium battery edge sealing device, including an edge sealing workbench 1, a multi-station edge sealing mechanism 2 is arranged on the edge sealing workbench 1, the multi-station edge sealing mechanism 2 includes a hollow base 21 and a lifting bracket 23, the hollow base 21 is fixedly installed on the inner wall of the edge sealing workbench 1, the top of the hollow base 21 is fixedly connected to a shroud support 22, the top of the shroud support 22 is welded with a limiting piece 221, and the top of the shroud support 22 is fixedly connected to a limiting piece 221. The inner wall of the limit cylinder 222 is fixedly connected with a rubber cover 223, the center of the bottom of the hollow base 21 is fixedly connected with a square tube 211, the left side of the square tube 211 is fixedly connected with a solenoid valve 1 212, the right side of the square tube 211 is fixedly connected with a solenoid valve 214, the front of the square tube 211 is fixedly connected with a digital pressure gauge 213, and the end of the solenoid valve 214 away from the square tube 211 is threadedly connected with a connecting hose 215, and the connecting hose 215 The length is designed according to the use environment. First, the end of the connecting hose 215 is connected to the external gas source, and the lithium battery structure is inserted into the inner cavity of the limiter 221. The solenoid valve 214 is controlled to open, and the gas is transported to the inner cavity of the hollow base 21 with the help of the external gas source. The gas then enters the limiter tube 222 through the diverter cover support 22, causing the rubber cover 223 to produce elastic deformation of expansion, and the lithium battery structure is clamped on the inner wall of the limiter 221. Several lithium battery structures can be fixed synchronously to improve the efficiency of hot pressing and edge sealing. The digital barometer 213 is connected to the solenoid valve 214 through an external controller electrical signal. The digital barometer 213 can transmit the air pressure data to the external controller. After the air pressure inside the square through tube 211 reaches a preset value, the external controller controls the solenoid valve 214 to close to avoid the problem of pressure damage to the lithium battery structure. The solenoid valve 1 212 is controlled to open, and the gas can be released to cause the rubber cover 223 to reset, thereby releasing the fixation of the lithium battery structure.

[0023] As an implementation method in this embodiment, Figure 1 As shown, the lifting bracket 23 is fixedly installed on the top of the edge banding workbench 1, and a stepping cylinder 24 is fixedly installed at the center of the top of the lifting bracket 23. The moving end of the stepping cylinder 24 extends to the bottom of the lifting bracket 23 and is fixedly connected to a lifting seat 26. A stabilizing slide bar 25 is welded on the top of the lifting seat 26. The outer wall of the stabilizing slide bar 25 is slidably connected to the inner wall of the lifting bracket 23. The bottom of the lifting seat 26 is detachably connected to a hot pressing plate body 27. The stepping cylinder 24 is controlled to extend, which can drive the hot pressing plate body 27 to move downward, and a plurality of lithium battery structures fixed on the hollow base 21 are synchronously heat-sealed. The design of the stabilizing slide bar 25 increases the stability of the lifting and lowering of the lifting seat 26. The lifting seat 26 and the hot pressing plate body 27 are detachably connected by bolts, which is convenient for users to disassemble and maintain the hot pressing plate body 27.

[0024] As an implementation method in this embodiment, Figure 1 , Figure 4 , Figure 5 As shown, the bottom of the lifting bracket 23 is movably connected with a hollow plate 28, the top of the hollow plate 28 is fixedly installed with a plastic clip 282, the outer wall of the plastic clip 282 is movably connected to the outer wall of the lifting bracket 23, the bottom of the inner wall of the hollow plate 28 is fixedly installed with a mesh plate 281, the top of the hollow plate 28 is threadedly connected with an air suction hose 283, the top of the lifting bracket 23 is fixedly installed with a vertical air cylinder 29, the end of the air suction hose 283 away from the hollow plate 28 is fixedly connected to the side of the vertical air cylinder 29, the middle of the vertical air cylinder 29 is fixedly connected with a suction fan body 291, the back of the vertical air cylinder 29 is movably connected with a movable pipe 292 located above the suction fan body 291, the inner wall of the movable pipe 292 is fixedly installed with a polyester fiber barrier net 293, and the movable pipe 29 The inner cavity of 2 is filled with activated carbon located above the polyester fiber barrier net 293. The design of the plastic clip 282 allows the hollow plate 28 to be fixedly installed on the lifting bracket 23, which is convenient for the user to disassemble and clean the mesh plate 281 and control the operation of the suction fan body 291. It can absorb gas from the bottom of the mesh plate 281 and absorb odorous gas generated by hot pressing, and then discharge it into the inner cavity of the movable pipe 292. The activated carbon inside the movable pipe 292 adsorbs the odor to avoid the problem of a large amount of odor during the hot pressing process. The shape design of the movable pipe 292 can avoid the problem that part of the activated carbon will pass through the polyester fiber barrier net 293 and fall into the inside of the suction fan body 291, thereby increasing the safety of the suction fan body 291.

[0025] Working principle: pre-connect the end of the connecting hose 215 to the external air source, then insert the lithium battery structure into the inner cavity of the limiter 221, control the solenoid valve 214 to open to cause the rubber cover 223 to collide and fix the lithium battery structure, and then control the stepping cylinder 24 to extend, driving the hot pressing plate body 27 to move downward, and complete the hot pressing treatment of several lithium battery structures.

[0026] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A lithium battery edge sealing device, comprising an edge sealing workbench (1), characterized in that: The edge-sealing workbench (1) is provided with a multi-station edge-sealing mechanism (2), the multi-station edge-sealing mechanism (2) comprising a hollow base (21) and a lifting bracket (23), the hollow base (21) is fixedly mounted on the inner wall of the edge-sealing workbench (1), the top of the hollow base (21) is fixedly connected to a flow divider support (22), the top of the flow divider support (22) is welded with a limiting piece (221), the top of the flow divider support (22) is fixedly connected to a limiting cylinder (222), the limiting cylinder (222) A rubber cover (223) is fixedly connected to the inner wall of the hollow base (21); a square through pipe (211) is fixedly connected to the center of the bottom of the hollow base (21); a solenoid valve 1 (212) is fixedly connected to the left side of the square through pipe (211); a solenoid valve 2 (214) is fixedly connected to the right side of the square through pipe (211); a digital pressure gauge (213) is fixedly connected to the front of the square through pipe (211); and a connecting hose (215) is threadedly connected to one end of the solenoid valve 2 (214) away from the square through pipe (211).

2. A lithium battery edge sealing device according to claim 1, characterized in that: The lifting bracket (23) is fixedly installed on the top of the edge banding workbench (1), and a stepping cylinder (24) is fixedly installed at the center of the top of the lifting bracket (23). The moving end of the stepping cylinder (24) extends to the bottom of the lifting bracket (23) and is fixedly connected to a lifting seat (26).

3. A lithium battery edge sealing device according to claim 2, characterized in that: A stabilizing slide bar (25) is welded to the top of the lifting seat (26), the outer wall of the stabilizing slide bar (25) is slidably connected to the inner wall of the lifting bracket (23), and the bottom of the lifting seat (26) is detachably connected to a hot pressing plate body (27).

4. A lithium battery edge sealing device according to claim 1, characterized in that: The bottom of the lifting bracket (23) is movably connected to a hollow plate (28), the top of the hollow plate (28) is fixedly mounted with a plastic clip (282), and the outer wall of the plastic clip (282) is movably connected to the outer wall of the lifting bracket (23).

5. A lithium battery edge sealing device according to claim 4, characterized in that: A mesh plate (281) is fixedly mounted on the bottom of the inner wall of the hollow plate (28), and a suction hose (283) is threadedly connected to the top of the hollow plate (28).

6. A lithium battery edge sealing device according to claim 5, characterized in that: A vertical air cylinder (29) is fixedly installed on the top of the lifting bracket (23), one end of the suction hose (283) away from the hollow plate (28) is fixedly connected to the side of the vertical air cylinder (29), and a suction fan body (291) is fixedly connected to the middle of the vertical air cylinder (29).

7. A lithium battery edge sealing device according to claim 6, characterized in that: A movable pipe (292) located above the suction fan body (291) is movably connected to the back of the vertical air cylinder (29), a polyester fiber barrier net (293) is fixedly installed on the inner wall of the movable pipe (292), and the inner cavity of the movable pipe (292) is filled with activated carbon located above the polyester fiber barrier net (293).

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