Cylinder liquid injection tray backflow line transition bin

Abstract

The utility model relates to battery production equipment technical field, concretely relates to a kind of cylinder liquid injection tray reflow line transition bin, including rack, nitrogen replacement box and drying bin are provided on the rack, transition bin is installed between nitrogen replacement box and drying bin, nitrogen replacement mechanism for replacing the air inside it as nitrogen is installed in the upper end surface of nitrogen replacement box;Wherein, the transition bin includes the box body installed on the rack, the side surface of the box body towards drying bin is provided with opening, two groups of sealing plates are hinged in the opening. The utility model is through the structural arrangement of transition bin, so that liquid injection tray is conveyed in the process from nitrogen replacement box to drying bin, when liquid injection tray passes through box body, two groups of sealing plates in opening will be opened simultaneously, avoid two groups of sealing plates to open early and need to wait liquid injection tray to be transported, cause a large amount of air in drying bin to enter nitrogen replacement box, and cause nitrogen content in nitrogen replacement box to drop.

Description

Technical Field

[0001] This utility model relates to the field of battery production equipment technology, specifically to a transition chamber for a cylindrical liquid injection tray return line. Background Technology

[0002] In existing battery production lines, a nitrogen replacement chamber is added between the battery production line and the drying chamber. By replacing the air in the nitrogen replacement chamber with nitrogen, the flow of air into the battery production line can be reduced when the liquid injection tray enters the transition chamber. This prevents moisture in the air from entering the battery production line, which would result in excessive moisture content in the battery production line and affect the production quality of the battery.

[0003] A sealed door is usually installed between the nitrogen purging chamber and the drying chamber to isolate the gas. Existing sealed doors are generally lifting or rotating types. After nitrogen purging, the nitrogen purging chamber contains a large amount of nitrogen. When the sealed door on the nitrogen purging chamber is opened, the liquid injection tray in the nitrogen purging chamber enters the drying chamber, which causes the air in the drying chamber to exchange with the nitrogen in the nitrogen purging chamber. This reduces the nitrogen content in the nitrogen purging chamber, resulting in a larger amount of nitrogen required for the next air purging in the nitrogen purging chamber, increasing production costs and reducing work efficiency.

[0004] Therefore, a cylindrical liquid injection tray return line transition chamber is proposed to solve the above-mentioned problems. Utility Model Content

[0005] Technical problems to be solved

[0006] To address the aforementioned shortcomings of existing technologies, this invention provides a cylindrical liquid injection tray return line transition chamber, which solves the problem in existing technologies where the nitrogen content in the nitrogen replacement chamber decreases during the process of the liquid injection tray flowing from the nitrogen replacement chamber into the drying chamber.

[0007] Technical solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] This utility model provides a transition chamber for a cylindrical liquid injection tray return line, including a frame, on which a nitrogen replacement box and a drying box are arranged. A transition chamber is installed between the nitrogen replacement box and the drying box. A nitrogen replacement mechanism for replacing the internal air with nitrogen is installed on the upper surface of the nitrogen replacement box. The transition chamber includes a box body installed on the frame. An opening is provided on the side surface of the box body facing the drying box. Two sets of sealing plates are hinged in the opening.

[0010] Furthermore, extension plates are inserted and installed on the opposite side surfaces of the two sets of sealing plates. Limiting grooves are provided on both sides of the extension plates. Connecting rods are hinged to the inner walls of the two sets of limiting grooves. The two sets of connecting rods on the same side between the two sets of sealing plates are hinged together.

[0011] Furthermore, the hinged position of the connecting rod within the limiting slot is close to the side of the extension plate inserted inside the sealing plate.

[0012] Furthermore, mounting brackets are provided on both inner walls of the housing, and a drive shaft is inserted between the two sets of mounting brackets. A drive roller is provided on the surface of the drive shaft, and the drive roller is inserted between the two sets of mounting brackets.

[0013] Furthermore, guide wheels that are linearly distributed at equal intervals are hinged to the upper surface of both sets of mounting brackets.

[0014] Furthermore, two sets of sealing gaskets are provided on the inner wall of the box, and the two sets of sealing gaskets are respectively located at the connection between the two sets of sealing plates and the opening.

[0015] Furthermore, the nitrogen replacement mechanism includes an inlet pipe for filling nitrogen into the nitrogen replacement chamber and a pressure relief pipe for extracting air from the nitrogen replacement chamber. Beneficial effects

[0016] The technical solution provided by this utility model has the following advantages compared with the known public technology:

[0017] This invention, through the structural design of the transition chamber, ensures that during the process of transporting the liquid injection tray from the nitrogen replacement chamber to the drying chamber, as the liquid injection tray passes through the chamber, the two sets of sealing plates inside the opening will rotate simultaneously. This prevents the two sets of sealing plates from opening too early and waiting for the liquid injection tray to be transported, which would cause a large amount of air in the drying chamber to enter the nitrogen replacement chamber and cause a decrease in the nitrogen content in the nitrogen replacement chamber.

[0018] Furthermore, during the opening of the two sets of sealing plates, when the two sets of sealing plates are fully opened to a distance that allows the liquid injection tray to pass through, the gap between the two sets of sealing plates is sealed by the contact of the two sets of extension plates, which further effectively reduces the diffusion of nitrogen in the nitrogen replacement chamber. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0020] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0021] Figure 2 This is a schematic diagram of the closed transition chamber structure in an embodiment of the present utility model;

[0022] Figure 3 This is a schematic diagram of the opening of the transition chamber structure in an embodiment of this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the transition chamber in an embodiment of this utility model;

[0024] Figure 5 This is a schematic diagram of the transition chamber structure drive in an embodiment of this utility model.

[0025] The labels in the diagram represent: 1. Frame; 2. Nitrogen replacement chamber; 3. Drying chamber; 4. Transition chamber; 401. Chamber body; 402. Opening; 403. Sealing plate; 404. Sealing gasket; 405. Mounting bracket; 406. Drive shaft; 407. Drive roller; 408. Control box; 409. Drive motor; 410. Guide wheel; 411. Mounting shaft; 412. Extension plate; 413. Limiting slot; 414. Connecting rod; 415. Drive gear; 416. Connecting shaft; 417. Connecting gear; 418. Pulley; 419. Connecting belt; 420. Control gear; 5. Liquid injection door; 6. Nitrogen replacement mechanism; 7. Electrical control box; 8. Human-machine interface. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a setting, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In the description of this embodiment, the terms "upper," "lower," "left," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0030] The present invention will be further described below with reference to the embodiments. Example

[0031] Please refer to the appendix. Figure 1-5 This solution proposes a transition chamber for a cylindrical liquid injection tray return line. A nitrogen purging chamber 2 and a drying chamber 3 are mounted on the surface of the frame 1, with the drying chamber 3 located on one side of the nitrogen purging chamber 2. A transition chamber 4 is also installed on the surface of the frame 1, located between the nitrogen purging chamber 2 and the drying chamber 3. The transition chamber 4 is used to seal the connection between the nitrogen purging chamber 2 and the drying chamber 3. A liquid injection door 5 is installed on the side of the nitrogen purging chamber 2 facing the battery production line, and the liquid injection door 5 is used to control the sealing switch within the battery production line.

[0032] In this scheme, by moving the liquid injection door 5 installed on the drying chamber 3 to the nitrogen replacement box 2, the liquid injection tray, after flowing back from the battery production line, first enters the nitrogen replacement box 2 through the liquid injection door 5, and then passes through the transition chamber 4 and enters the drying chamber 3. The other end of the drying chamber 3 is connected to the cleaning device, so that the liquid injection tray is dried in the drying chamber 3 and then enters the cleaning device for cleaning.

[0033] A nitrogen replacement mechanism 6 is installed on the upper surface of the nitrogen replacement chamber 2. The nitrogen replacement mechanism 6 includes an air inlet pipe for filling nitrogen into the nitrogen replacement chamber 2 and a pressure relief pipe for extracting air from the nitrogen replacement chamber 2. Nitrogen can be injected into the nitrogen replacement chamber 2 through the nitrogen replacement mechanism 6, and the air inside the nitrogen replacement chamber 2 can be replaced.

[0034] When the liquid injection tray is about to enter the nitrogen replacement chamber 2, the nitrogen replacement chamber 2 is first sealed and controlled by the transition chamber 4 and the liquid injection door 5. Then, the air in the nitrogen replacement chamber 2 is replaced by the nitrogen replacement mechanism 6. After the air replacement in the nitrogen replacement chamber 2 is completed, the liquid injection door 5 is opened. At this time, the gas in the nitrogen replacement chamber 2 is nitrogen. This further reduces the flow of air into the battery production line when the liquid injection tray enters the nitrogen replacement chamber 2, thereby preventing moisture in the air from entering the battery production line and causing the moisture value in the battery production line to be too high, resulting in a decline in production quality.

[0035] Both the nitrogen purging chamber 2 and the drying chamber 3 are equipped with conveying devices to drive the liquid injection tray. After the liquid injection tray enters the nitrogen purging chamber 2, the liquid injection door 5 is closed and the transition chamber 4 is opened, allowing the conveying device to transport the liquid injection tray to the drying chamber 3. After drying in the drying chamber 3, the tray finally enters the cleaning device. The cleaning device is used to clean the impurities and residual electrolyte adhering to the tray. The cleaning device is a known technology and will not be described in detail here, nor is it shown in the attached drawings.

[0036] Specifically, the transition chamber 4 includes a housing 401 mounted on the frame 1, which is internally connected to the nitrogen replacement chamber 2. The housing 401 has an opening 402 on the side facing the drying chamber 3, and a sealing plate 403 is installed inside the opening 402. The sealing plate 403 can seal the opening 402, further separating the nitrogen replacement chamber 2 from the drying chamber 3.

[0037] Mounting brackets 405 are provided on both inner walls of the housing 401. A drive shaft 406 is inserted between the two sets of mounting brackets 405. A drive roller 407 is provided on the surface of the drive shaft 406 and is inserted between the two sets of mounting brackets 405. When the conveying device in the nitrogen replacement chamber 2 conveys the liquid injection tray into the drying chamber 3, the liquid injection tray will abut against the surface of the drive roller 407. The drive roller 407 further supports the liquid injection tray, allowing it to be smoothly conveyed from the nitrogen replacement chamber 2 into the drying chamber 3.

[0038] A control box 408 is provided on one side surface of the housing 401. One end of the drive shaft 406 passes through the control box 408. A drive motor 409 is provided on the control box 408, and the output shaft of the drive motor 409 is connected to the drive shaft 406. After the liquid injection tray enters the housing 401, the liquid injection tray abuts against the surface of the drive roller 407. The drive motor 409 drives the drive shaft 406 to rotate, further controlling the rotation of the drive roller 407 and pushing the liquid injection tray to slide towards the drying chamber 3, so that the liquid injection tray can be stably transferred from the conveying device in the nitrogen replacement chamber 2 to the conveying device in the drying chamber 3.

[0039] Both sets of mounting brackets 405 have guide wheels 410 that are linearly distributed at equal intervals hinged to their upper surfaces. When the injection tray enters the housing 401, it will be located between the two sets of mounting brackets 405, and the two sides of the injection tray will abut against the surfaces of the two rows of guide wheels 410. This prevents the injection tray from deviating in direction when passing through the housing 401.

[0040] Two sets of mounting shafts 411 are inserted inside the housing 401, located on the upper and lower sides of the opening 402, respectively. Two sets of sealing plates 403 are hinged to the two sets of mounting shafts 411, thereby enabling the opening and closing control of the two sets of sealing plates 403 within the opening 402, facilitating the control of the opening 402. Simultaneously, two sets of sealing gaskets 404 are provided on the inner wall of the housing 401, located at the connection points between the two sets of sealing plates 403 and the opening 402. This ensures that during the rotational opening and closing of the sealing plates 403, the sealing gaskets 404 maintain a seal at the connection between the opening 402 and the sealing plates 403, preventing the nitrogen replacement chamber 2 and the drying chamber 3 from failing to seal properly after the sealing plates 403 are closed.

[0041] One end of each of the two sets of mounting shafts 411 extends into the control box 408 and is equipped with a drive gear 415. Simultaneously, two sets of connecting shafts 416 are inserted into the inner wall of the control box 408, each located on one side of the two sets of mounting shafts 411. Each set of connecting shafts 416 has a connecting gear 417 on its surface, which meshes with the adjacent two sets of drive gears 415. A control gear 420 is provided on the surface of the drive shaft 406, and the control gear 420 meshes with the connecting gear 417 located below it.

[0042] When the drive motor 409 is turned on, it drives the drive roller 407 to transport the liquid injection tray. Simultaneously, the drive control gear 420 engages with the connecting gear 417, which in turn engages with the drive gear 415, causing the lower sealing plate 403 to rotate counter-clockwise and open. Both the drive shaft 406 and the upper connecting shaft 416 are equipped with pulleys 418, which are connected by a connecting belt 419. This further ensures that during the rotation of the drive shaft 406, it drives the connecting gear 417 to engage with the upper drive gear 415, with the two sets of drive gears rotating in opposite directions, thus further controlling the upper sealing plate 403 to rotate clockwise and open. By controlling the opening and closing of the two sets of sealing plates 403, the two sets of sealing plates 403 are opened while the drive roller 407 is conveying the liquid injection tray. This avoids the two sets of sealing plates 403 opening too early and having to wait for the liquid injection tray to be conveyed, which would cause a large amount of air in the drying chamber 3 to enter the nitrogen replacement box 2 and cause the nitrogen content in the nitrogen replacement box 2 to decrease.

[0043] Extension plates 412 are inserted and installed on opposite sides of the two sets of sealing plates 403. Limiting grooves 413 are provided on both sides of the extension plates 412. Connecting rods 414 are hinged to the inner walls of the two sets of limiting grooves 413. At the same time, the two sets of connecting rods 414 on the same side between the two sets of sealing plates 403 are hinged together. The hinged position of the connecting rods 414 in the limiting grooves 413 is close to the extension plate 412 and inserted into the side of the sealing plate 403. Furthermore, during the rotational opening of the two sets of sealing plates 403, the extension plate 412 is pulled out from the sealing plate 403 under the tension of the connecting rod 414. Before the connecting rod 414 is fully pulled out at the hinge position, the connecting rod 414 cannot rotate, further maintaining the contact between the two sets of extension plates 412. Thus, during the rotational opening of the two sets of sealing plates 403, the gap between the two sets of sealing plates 403 is sealed by the contact of the two sets of extension plates 412, further effectively reducing the diffusion of nitrogen in the nitrogen replacement chamber 2. After the connecting rod 414 is pulled out at the hinge position, the connecting rod 414 will rotate in the limiting slot 413. When the two sets of sealing plates 403 rotate and are horizontally distributed, the connecting rod 414 rotates to a vertical state. At this time, the two sets of extension plates 412 are also fully opened, thereby realizing the opening of the opening 402, so that the liquid injection tray can pass through the transition chamber 4 from the nitrogen replacement box 2 and enter the drying chamber 3. Before entering, it can effectively reduce the diffusion of nitrogen in the nitrogen replacement box 2.

[0044] During the closing process of the two sets of sealing plates 403, the connecting rod 414 cannot rotate towards the opening 402 side due to the restriction of the limiting groove 413. This further causes the two sets of connecting rods 414 to rotate towards the limiting groove 413 side, causing the connecting rod 414 to retract into the limiting groove 413. During the retraction process, the limiting groove 413 pushes the extension plate 412 to insert into the sealing plate 403, further and quickly reducing the opening of the opening 402, thereby preventing nitrogen leakage in the nitrogen replacement box 2.

[0045] An electrical control box 7 is mounted on the surface of the frame 1, located below the drying chamber 3. A human-machine interface 8 is also installed on the surface of the frame 1. Automated control of the device can be achieved through the electrical control box 7 and the human-machine interface 8, including the electrically controlled opening of the transition chamber 4 and the liquid injection door 5.

[0046] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A transition chamber for a cylindrical liquid injection tray return line, characterized in that, include: A frame (1) is provided with a nitrogen replacement box (2) and a drying chamber (3). A transition chamber (4) is installed between the nitrogen replacement box (2) and the drying chamber (3). A nitrogen replacement mechanism (6) for replacing the air inside the nitrogen replacement box (2) with nitrogen is installed on the upper surface of the nitrogen replacement box (2). The transition chamber (4) includes a box (401) mounted on the frame (1). The box (401) has an opening (402) on one side of the surface facing the drying chamber (3). Two sets of sealing plates (403) are hinged in the opening (402).

2. The cylindrical liquid injection tray return line transition chamber according to claim 1, characterized in that, An extension plate (412) is inserted and installed on one side surface of each of the two sets of sealing plates (403). Limiting grooves (413) are provided on both sides of the extension plate (412). Connecting rods (414) are hinged to the inner walls of the two sets of limiting grooves (413). The two sets of connecting rods (414) on the same side of the two sets of sealing plates (403) are hinged together.

3. The cylindrical liquid injection tray return line transition chamber according to claim 2, characterized in that, The connecting rod (414) is hinged in the limiting slot (413) and inserted into the sealing plate (403) on one side near the extension plate (412).

4. The cylindrical liquid injection tray return line transition chamber according to claim 3, characterized in that, Mounting brackets (405) are provided on both inner walls of the housing (401). A drive shaft (406) is inserted between the two sets of mounting brackets (405). A drive roller (407) is provided on the surface of the drive shaft (406). The drive roller (407) is inserted between the two sets of mounting brackets (405).

5. The cylindrical liquid injection tray return line transition chamber according to claim 4, characterized in that, The upper surfaces of both sets of mounting brackets (405) are hinged with guide wheels (410) that are linearly distributed at equal intervals.

6. The cylindrical liquid injection tray return line transition chamber according to claim 5, characterized in that, Two sets of sealing gaskets (404) are provided on the inner wall of the box (401), and the two sets of sealing gaskets (404) are respectively located at the connection between the two sets of sealing plates (403) and the opening (402).

7. The cylindrical liquid injection tray return line transition chamber according to claim 6, characterized in that, The nitrogen replacement mechanism (6) includes an air inlet pipe for filling nitrogen into the nitrogen replacement box (2) and a pressure relief pipe for extracting air from the nitrogen replacement box (2).

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