Adjustable soft package lithium battery heat sealing machine

Abstract

The utility model discloses a kind of adjustable soft package lithium battery heat sealing machine, including: heat sealing machine main body and discharging mechanism, discharging mechanism is used to place the lithium battery needing to be heat sealed, including fixed in the material plate of heat sealing machine main body side, the limiting plate symmetric and slidingly arranged at material plate top end, fixed in the limiting plate bottom end and stretch into the threaded sleeve of material plate bottom end, double-end screw rod is rotatably installed in the inner chamber of material plate and passes through threaded sleeve, drive part is fixed in the bottom end of material plate and is connected with double-end screw rod, vertical rod is fixed in the both sides of material plate, end sliding sleeve is connected on vertical rod Plate and electric telescopic rod are fixed in the both sides of material plate and end and plate fixed connection, material plate is used to place lithium battery, limiting plate is used to limit lithium battery placed on material plate, ensure that lithium battery is kept perpendicular with heat sealing head when heat sealing, this adjustable soft package lithium battery heat sealing machine, with the advantage that material plate groove width is adjustable and high practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of lithium battery production equipment, specifically an adjustable soft-pack lithium battery heat sealing machine. Background Technology

[0002] Lithium-ion batteries are a type of battery that uses lithium metal or lithium alloys as positive and negative electrode materials and a non-aqueous electrolyte solution. Due to the highly reactive chemical properties of lithium metal, its processing, storage, and use require very strict environmental control. With the development of science and technology, lithium-ion batteries have become mainstream. Among them, soft-pack lithium-ion batteries have advantages such as good safety performance, light weight, large capacity, and low internal resistance, and are widely used in mobile terminals, electric vehicles, wind power generation systems, and other fields. Cell heat sealing is an important step in the production process of soft-pack batteries. Existing heat sealing machines use a cylinder drive to move the upper and lower sealing heads. The operator places the soft-pack lithium-ion battery to be heat-sealed between the upper and lower sealing heads, and uses the high temperature of the sealing heads to heat and melt the aluminum-plastic film and heat seal it. The sealing thickness is then controlled by adjusting the cylinder pressure and the sealing head gap block.

[0003] The existing lithium battery heat sealing machines have the following drawbacks during use: During heat sealing, workers need to place the lithium battery in the groove on the material plate and push it into the heat sealing machine along the groove to ensure that the lithium battery is perpendicular to the heat sealing head. However, the width of the groove on the existing material plate cannot be adjusted, making it difficult to adapt to lithium batteries of different sizes. Therefore, there is room for improvement. Utility Model Content

[0004] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0005] Therefore, the technical solution adopted by this utility model is as follows: an adjustable soft-pack lithium battery heat sealing machine, including: a heat sealing machine body and a feeding mechanism. The feeding mechanism includes a material plate fixed on one side of the heat sealing machine body, a limiting plate symmetrically and slidably disposed on the top of the material plate, a threaded sleeve fixed on the bottom of the limiting plate and extending into the bottom of the material plate, a double-headed screw rotatably installed in the inner cavity of the material plate and passing through the threaded sleeve, a driving component fixed on the bottom of the material plate and connected to the double-headed screw, uprights symmetrically fixed on both sides of the material plate, a pressure plate whose end is slidably sleeved on the upright, and an electric telescopic rod fixed on both sides of the material plate and whose end is fixedly connected to the pressure plate.

[0006] In a preferred embodiment, the present invention can be further configured such that the driving component includes a motor fixed to the bottom of the material plate, a transmission wheel fixed to the motor shaft, and a transmission belt with one end sleeved on the transmission wheel and the other end extending into the inner cavity of the material plate and sleeved in the middle of the double-ended screw.

[0007] In a preferred embodiment, the present invention can be further configured such that: a groove is formed in the middle of the material plate, and a double-headed screw is rotatably mounted on the opposite inner wall of the groove.

[0008] In a preferred embodiment, the present invention can be further configured such that: symmetrical grooves are formed at the top of the material plate, and symmetrical sliding strips are fixed at the bottom of the limiting plate, with the sliding strips slidingly fitted into the grooves.

[0009] In a preferred embodiment, the present invention can be further configured such that the pressure plate includes a top plate that is slidably sleeved on the upright, a rectangular plate that passes through the top plate, and a pressure sensor that is fixed to the bottom of the top plate and close to the rectangular plate.

[0010] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: 1. In this utility model, two limiting plates are symmetrically slidably arranged at the top of the material plate, and a threaded sleeve extending into the material plate is fixed at the bottom of the limiting plate. A double-ended screw passing through the threaded sleeve is rotatably installed in the inner cavity of the material plate, and a driving component is provided to connect with the double-ended screw. Through the above arrangement, the driving component is started, driving the double-ended screw to rotate. The rotation of the double-ended screw causes the threaded sleeves on both sides to move towards each other, that is, it causes the limiting plates on both sides to move towards each other, adjusting the distance between the limiting plates on both sides, thereby facilitating the limiting of lithium batteries of different sizes, ensuring the accurate position of the lithium battery during heat sealing, and increasing practical performance.

[0011] 2. In this utility model, uprights are fixed on both sides of the material plate, and pressure plates are movably installed on the uprights. Electric telescopic rods are installed on both sides of the material plate and fixedly connected to the pressure plates. With the above arrangement, before the lithium battery is heat-sealed, the electric telescopic rods move down, driving the pressure plates to press down and press the lithium battery tightly onto the material plate, thereby venting the air inside the lithium battery and avoiding residual air inside the lithium battery after heat sealing, further increasing the practical performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the feeding mechanism of this utility model; Figure 3 This is an exploded view of the feeding mechanism of this utility model; Figure 4 This is an exploded structural diagram of the feeding mechanism from another perspective of this utility model.

[0013] Figure label: 100. Main body of the heat sealing machine; 200. Feeding mechanism; 210. Material plate; 211. Groove; 212. Slide groove; 220. Limiting plate; 221. Sliding strip; 230. Threaded sleeve; 240. Double-ended screw; 250. Driving component; 251. Motor; 252. Transmission wheel; 253. Transmission belt; 260. Upright pole; 270. Pressure plate; 271. Top plate; 272. Rectangular plate; 273. Pressure sensor; 280. Electric telescopic rod. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0015] Some embodiments of this utility model are described below with reference to the accompanying drawings. Example 1: Combination Figure 1-4 As shown, this embodiment provides an adjustable soft-pack lithium battery heat sealing machine, including: a heat sealing machine body 100 and a feeding mechanism 200.

[0016] Among them, the heat sealing machine is used to heat seal the end edges of the soft-pack lithium battery to realize the encapsulation operation of the lithium battery.

[0017] The feeding mechanism 200 is used to place lithium batteries that need to be heat-sealed. It includes a material plate 210 fixed to one side of the heat-sealing machine body 100, a limiting plate 220 symmetrically and slidably disposed at the top of the material plate 210, a threaded sleeve 230 fixed to the bottom of the limiting plate 220 and extending into the bottom of the material plate 210, a double-ended screw 240 rotatably installed in the inner cavity of the material plate 210 and passing through the threaded sleeve 230, a driving component 250 fixed to the bottom of the material plate 210 and connected to the double-ended screw 240, uprights 260 symmetrically fixed to both sides of the material plate 210, a pressure plate 270 whose end is slidably sleeved on the uprights 260, and an electric telescopic rod 280 fixed to both sides of the material plate 210 and whose end is fixedly connected to the pressure plate 270.

[0018] The material plate 210 is used to place lithium batteries, and the limiting plate 220 is used to limit the lithium batteries placed on the material plate 210 to ensure that the lithium batteries remain perpendicular to the heat sealing head during heat sealing. The top of the material plate 210 has symmetrically opened sliding grooves 212, and the bottom of the limiting plate 220 has symmetrically fixed sliding strips 221. The sliding strips 221 slide and fit into the sliding grooves 212 to ensure the stability of the limiting plate 220 when it moves on the material plate 210.

[0019] The material plate 210 has a groove 211 in the middle. The double-headed screw 240 is rotatably installed on the inner wall of the groove 211. The threads on the double-headed screw are symmetrically arranged so that when the double-headed screw 240 rotates, the threaded sleeves 230 on both sides move towards each other, thereby driving the limiting plates 220 on both sides to move towards each other. Adjusting the distance between the limiting plates 220 on both sides makes it convenient to limit lithium batteries of different sizes.

[0020] The drive unit 250 is used to drive the double-ended screw 240 to rotate. It includes a motor 251 fixed to the bottom of the material plate 210, a transmission wheel 252 fixed to the shaft of the motor 251, and a transmission belt 253 with one end sleeved on the transmission wheel 252 and the other end extending into the inner cavity of the material plate 210 and sleeved in the middle of the double-ended screw 240. With this configuration, when the motor 251 starts, it drives the transmission wheel 252 to rotate. The rotation of the transmission wheel 252 drives the double-ended screw 240 to rotate through the transmission belt 253.

[0021] The upright 260 is used to install the pressure plate 270 and limit the movement of the pressure plate 270. The pressure plate 270 includes a top plate 271 that is slidably sleeved on the upright 260, a rectangular plate 272 that passes through the top plate 271, and a pressure sensor 273 that is fixed to the bottom of the top plate 271 and close to the rectangular plate 272. Sleeves are fixed on both sides of the top plate 271 and are slidably sleeved on the upright 260 to ensure the stability of the top plate 271 when it moves up and down. The rectangular plate 272 is used to press against the top surface of the lithium battery and apply pressure to the lithium battery, pressing the lithium battery against the surface of the material plate 210, thereby expelling the air in the internal packaging of the lithium battery. The pressure sensor 273 is used to monitor the pressure of the rectangular plate 272 in real time and close the electric telescopic rod 280 after the set pressure value is reached. The end of the electric telescopic rod 280 is fixedly connected to the end of the top plate 271 and is used to drive the top plate 271 to move.

[0022] The working principle and usage process of this utility model are as follows: When in use, start the motor 251, which drives the transmission wheel 252 to rotate. The rotation of the transmission wheel 252 drives the double-headed screw 240 to rotate through the transmission belt 253. The rotation of the double-headed screw 240 drives the two threaded sleeves 230 to move towards each other, that is, drives the two limiting plates 220 to move towards each other. Adjust the distance between the two limiting plates 220 so that the distance between the two limiting plates 220 is the same as the width of the lithium battery. Place the lithium battery between the two limiting plates 220 and push the end of the lithium battery into the heat sealing machine body 100. At this time, the electric telescopic rod 280 retracts, driving the pressure plate 270 to press down and press the lithium battery tightly against the top of the material plate 210, thereby venting the air inside the lithium battery to the outside. Then, the heat sealing machine body 100 performs heat sealing operation on the edge of the lithium battery.

[0023] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An adjustable soft-pack lithium battery heat sealing machine, comprising: The heat sealing machine body (100) and the feeding mechanism (200) are characterized in that the feeding mechanism (200) includes a material plate (210) fixed on one side of the heat sealing machine body (100), a limiting plate (220) symmetrically and slidably disposed on the top of the material plate (210), a threaded sleeve (230) fixed on the bottom of the limiting plate (220) and extending into the bottom of the material plate (210), a double-headed screw (240) rotatably installed in the inner cavity of the material plate (210) and passing through the threaded sleeve (230), a driving component (250) fixed on the bottom of the material plate (210) and connected to the double-headed screw (240), uprights (260) symmetrically fixed on both sides of the material plate (210), a pressure plate (270) whose end is slidably sleeved on the uprights (260), and an electric telescopic rod (280) fixed on both sides of the material plate (210) and whose end is fixedly connected to the pressure plate (270).

2. The adjustable soft-pack lithium battery heat sealing machine according to claim 1, characterized in that, The drive unit (250) includes a motor (251) fixed to the bottom of the material plate (210), a transmission wheel (252) fixed to the shaft of the motor (251), and a transmission belt (253) with one end sleeved on the transmission wheel (252) and the other end extending into the inner cavity of the material plate (210) and sleeved in the middle of the double-headed screw (240).

3. The adjustable soft-pack lithium battery heat sealing machine according to claim 1, characterized in that, The material plate (210) has a groove (211) in the middle, and a double-headed screw (240) is rotatably installed on the opposite inner wall of the groove (211).

4. The adjustable soft-pack lithium battery heat sealing machine according to claim 1, characterized in that, A sliding groove (212) is symmetrically opened at the top of the material plate (210), and a sliding strip (221) is symmetrically fixed at the bottom of the limiting plate (220). The sliding strip (221) is slidably fitted into the sliding groove (212).

5. An adjustable soft-pack lithium battery heat sealing machine according to claim 1, characterized in that, The pressure plate (270) includes a top plate (271) that is slidably sleeved on the upright (260) at its end, a rectangular plate (272) that passes through the top plate (271), and a pressure sensor (273) that is fixed to the bottom of the top plate (271) and close to the rectangular plate (272).

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