Automatic packaging and liquid injection production line

Abstract

The utility model relates to an automatic packaging and liquid injection production line which comprises a baking room for heating a naked battery cell, a film sealing all-in-one machine for sealing a film on the naked battery cell and a liquid injection machine for injecting liquid, a conveying line used for conveying naked battery cells and a return line used for conveying containing discs containing the naked battery cells back to the baking room are arranged between the baking room and the film sealing all-in-one machine, and a transfer line used for transferring the packaged battery cells to the liquid injection machine is arranged between the film sealing all-in-one machine and the liquid injection machine. After an operator takes down the battery cell in the film sealing all-in-one machine, a containing disc used for containing the battery cell is placed on the return line, and the containing disc is automatically conveyed into the baking room through the return line; the procedure of manually carrying the containing plate is reduced; and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic packaging and liquid injection production lines, in particular to an automatic packaging and liquid injection production line. Background Art

[0002] Each production line of the automatic battery cell encapsulation and filling production line is equipped with multiple top and side sealing and laminating machines and filling machines, and manual material handling is used for material turnover. The encapsulated battery cells are then taken to the baking room for baking. The baking process for the top and side sealed battery cells can take over 24 hours. After the moisture content is baked to the appropriate parameters, the cells are then fed through the transition window to the filling machine for filling and sealing.

[0003] During this process, the battery cells are turned over multiple times, which is inefficient, consumes high labor costs, and has a long production cycle, resulting in high labor costs for a single battery cell. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic packaging and liquid injection production line to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic packaging and liquid injection production line, comprising a baking room for heating bare cells, an integrated film sealing machine for sealing the bare cells, and a liquid injection machine for liquid injection;

[0006] A conveyor line for conveying bare cells and a reflow line for returning the tray containing the bare cells to the baking room are set between the baking room and the film sealing machine. A transfer line for transferring the packaged cells to the liquid filling machine is set between the film sealing machine and the liquid filling machine.

[0007] Compared with the existing technology, by setting a reflow line between the baking room and the film sealing machine, when the operator removes the battery cell in the film sealing machine, the holding tray for the battery cell is placed on the reflow line, and the holding tray is automatically transported to the baking room through the reflow line; the process of manual handling of the holding tray is reduced, thereby reducing labor costs.

[0008] According to the preferred technical solution of the present invention, a feeding mechanism is installed between the conveying line and the film sealing machine, one end of the feeding mechanism is connected with the conveying line, and the other end is connected with the feeding port of the film sealing machine.

[0009] According to the preferred technical solution of the present invention, a blanking mechanism is installed between the film sealing machine and the transfer line, one end of the blanking mechanism is connected to the transfer line, and the other end of the blanking mechanism is connected to the blanking window of the film sealing machine.

[0010] According to the preferred technical solution of the present invention, the reflow line is installed right above the film sealing machine, one end of the reflow line is connected to the film sealing machine, and the other end is connected to the baking room.

[0011] According to the preferred technical solution of the present utility model, the return line includes a sealing cover and a return mechanism installed in the sealing cover.

[0012] According to the preferred technical solution of the present invention, the conveyor line includes a dustproof shell and a feeding mechanism located in the dustproof shell.

[0013] In addition to the technical problems solved by the present invention, the technical features that constitute the technical solutions, and the advantages brought about by the technical features of these technical solutions described above, other technical problems that can be solved by the present invention, other technical features included in the technical solutions, and the advantages brought about by these technical features will be further described in detail in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the layout of the present utility model.

[0015] Explanation of the accompanying figures: 01. Baking room; 02. Film sealing machine; 03. Liquid injection machine; 04. Conveyor line; 05. Reflow line; 06. Transfer line; 07. Loading mechanism; 08. Unloading mechanism. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1 As shown, the automatic packaging and liquid injection production line of the present invention is used to seal and inject liquid into battery cells. It includes a baking room 01 for heating the bare battery cells, a sealing machine 02 for sealing the bare battery cells, and a liquid injection machine 03 for injecting liquid.

[0018] A conveyor line 04 for conveying bare cells and a reflow line 05 for returning the tray containing the bare cells to the baking room 01 are provided between the baking room 01 and the film sealing machine 02. A transfer line 06 for transferring the packaged cells to the liquid filling machine 03 is provided between the film sealing machine 02 and the liquid filling machine 03.

[0019] During use, the bare cells are first placed in a storage box and then carried by an operator into baking room 01 for self-heating baking for approximately four hours. After baking, the bare cells and the tray containing them automatically enter conveyor line 04, where they are transferred to the film sealing machine 02. A person manually removes the cells and wraps them in aluminum-plastic film, placing them in the top-side film sealing machine for automatic film sealing. During the film sealing process, the tray containing the bare cells is manually placed on reflow line 05, where it is returned to baking room 01. An automatic tray collector installed in baking room 01 automatically recovers the tray and sends it to the previous process. The sealed cells are transferred by unloading mechanism 08 to transfer line 06, which then transports them to the loading port of liquid injection machine 03. The cells are then manually or automatically loaded into liquid injection machine 03, which then pre-seals the cells. The processed cells are then automatically loaded onto trays and fed into the unloading window of liquid injection machine 03. Once a certain amount of cells are available, the entire box is manually removed from the unloading window. This completes the entire packaging and liquid injection process.

[0020] The above-mentioned loading mechanism 07 is installed on the conveyor line 04. One end of the loading mechanism 07 is connected to the conveyor line 04, and the other end is connected to the loading port of the film sealing machine 02. The above-mentioned unloading mechanism 08 is installed on the transfer line 06. One end of the unloading mechanism 08 is connected to the transfer line 06, and the other end of the unloading mechanism 08 is connected to the unloading window of the film sealing machine 02. The loading mechanism 07 and the unloading mechanism 08 described in this application have the same structure, and can adopt a battery cell loading device disclosed in Chinese patent publication number CN117585406A, including an input mechanism, a pushing mechanism, a loading mechanism 07 and a tray unloading mechanism 08. The input mechanism is used to transport the tray containing the battery cells to the pushing mechanism, and the pushing mechanism is used to push the tray containing the battery cells to the loading station; the loading mechanism 07 is arranged above the loading station, and the loading mechanism 07 is used to take out the battery cells in the tray and transport the taken out battery cells to the downstream station; the tray unloading mechanism 08 is arranged on the side of the loading station, and the tray unloading mechanism 08 is used to transport the emptied tray at the loading station to the tray stacking station. The battery cell loading device provided in the present application inputs the tray containing the battery cells by the input mechanism, and when the tray at the loading station is emptied and transported to the tray recovery station, the pushing mechanism immediately receives a tray from the input mechanism and quickly pushes the tray to the loading station. The battery cell loading device of the present application improves the efficiency of battery cell loading.

[0021] The structures of the conveyor line 04 and the transfer line 06 are the same. Taking the conveyor line 04 as an example, it includes a dustproof shell and a feeding mechanism located in the dustproof shell. The dustproof shell cover is set on the feeding mechanism to prevent dust in the air from being adsorbed on the battery cells during the movement, so that the battery cells can be moved in a dust-free space.

[0022] The aforementioned reflow line 05 is installed directly above the film sealing machine 02. One end of the reflow line 05 is connected to the film sealing machine 02, and the other end is connected to the baking room 01. It includes a sealing cover and a reflow mechanism installed within the sealing cover. The sealing cover covers the reflow mechanism and serves the same purpose as the dust cover mentioned above. The reflow mechanism described here can adopt a Chinese patent with publication number CN118597767A, a multi-layer reflow mechanism for battery cell trays, which relates to the field of battery manufacturing and includes a conveying component, the conveying component having at least two layers for reflowing and transporting battery cell trays; a lifting and reflow component, the lifting and reflow component is arranged on one side of the conveying component, and is used to lift the battery cell tray; a lifting and transferring component, the lifting and transferring component is arranged on the conveying component, and is used to receive the battery cell tray on the lifting and reflow component and place the battery cell tray on the conveying component; and a toggling component, the toggling component is arranged on one side of the lifting and reflow component, and is used to transfer the battery cell tray on the lifting and reflow component to the lifting and transferring component. The multi-layer reflow mechanism of the present application can realize automatic handling of battery cell trays of different heights, and has a compact structural design, which not only reduces the space occupied by the multi-layer reflow mechanism, but also improves the reflow efficiency of the battery cell tray, which is beneficial to the cost control of product production.

[0023] At the same time, the above-mentioned feeding mechanism can adopt a long-stroke, high-precision conveying device for battery cells disclosed in the utility model patent with publication number CN221643532U, which includes a load-bearing frame, on which are provided a driving wheel assembly, a driven wheel assembly, a first synchronous belt, a drive assembly, and a sensor assembly; the driving wheel assembly includes a first rotating shaft, the ends of which are connected to a first mounting plate, and the first rotating shaft is provided with a driving gear and a power input wheel; the driven wheel assembly includes a second rotating shaft, the ends of which are connected to a second mounting plate, and the second rotating shaft is provided with a driven gear; a toothed belt is provided on the inner side of the first synchronous belt, which is meshed with the driving gear and the driven gear respectively, and a tooling assembly is provided on the outer side of the first synchronous belt; the drive assembly includes a drive motor, which is mounted on a frame; and the sensor assembly is connected to the upper end of the load-bearing frame. The transmission is achieved by a dual synchronous belt and gear meshing connection method, and multiple sets of sensors are used to detect the positioning of the synchronous belt and the battery cell products in real time. The synchronous belt is equipped with a tooling assembly to convey and position the battery cell products, thereby ensuring conveying accuracy and stability.

[0024] The above-mentioned liquid filling machine 03 can use a lithium battery automatic liquid filling machine 03 disclosed in Chinese patent publication number CN106684306A, which includes a frame, a loading mechanism 07, a liquid filling machine 03 mechanism, a packaging mechanism and a discharge mechanism 08 installed on the frame, a turntable mechanism rotatably connected to the frame, the loading mechanism 07, the liquid filling machine 03 mechanism, the packaging mechanism and the discharge mechanism 08 are arranged around the turntable mechanism, the liquid filling machine 03 mechanism is located between the loading mechanism 07 and the packaging mechanism, and the packaging mechanism is located between the liquid filling machine 03 mechanism and the discharge mechanism 08; when in use, the loading mechanism 07 places the lithium battery shell on the turntable mechanism, the turntable mechanism inputs the shell into the liquid filling machine 03 mechanism, the liquid filling machine 03 mechanism injects the electrolyte into the shell, and then inputs it into the packaging mechanism to seal the shell, and finally outputs it through the discharge mechanism 08; the automated operation of lithium battery liquid filling is realized, and the production efficiency of lithium battery liquid filling is greatly improved.

[0025] The above-mentioned film sealing integrated machine 02 can use a soft-pack battery top, side and bottom edge sealing and film pasting integrated machine disclosed in Chinese patent publication number CN215156021 U, which includes a frame, a feeding robot, a loading mechanism 07 installed on the frame and arranged in sequence along the conveying direction of the feeding robot, a top sealing mechanism, a side sealing mechanism, a bottom sealing mechanism, a film preparation mechanism and a film pasting mechanism, wherein the top sealing mechanism is used to seal the top edge of the lithium battery, the side sealing mechanism is used to seal the side edge of the lithium battery, the bottom sealing mechanism is used to seal the bottom edge of the lithium battery, the film preparation mechanism is used to transport the film material, and the film pasting mechanism is used to attach the film material to the packaged lithium battery. The utility model has a high degree of automation and can seal and film the bottom, side and top edges of the soft-pack lithium battery, effectively improving work efficiency and reducing labor consumption.

[0026] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] The above embodiments are merely descriptions of preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineering technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. An automatic packaging and liquid injection production line, comprising a baking room for heating bare cells, a film sealing machine for sealing the bare cells, and a liquid injection machine for liquid injection, characterized in that: A conveyor line for conveying bare cells and a reflow line for returning the tray containing the bare cells to the baking room are set between the baking room and the film sealing machine. A transfer line for transferring the packaged cells to the liquid filling machine is set between the film sealing machine and the liquid filling machine.

2. The automatic packaging and liquid injection production line according to claim 1, characterized in that: A feeding mechanism is installed between the conveying line and the film sealing machine. One end of the feeding mechanism is connected to the conveying line, and the other end is connected to the feeding port of the film sealing machine.

3. The automatic packaging and liquid injection production line according to claim 1, characterized in that: A blanking mechanism is installed between the film sealing machine and the transfer line. One end of the blanking mechanism is connected to the transfer line, and the other end of the blanking mechanism is connected to the blanking window of the film sealing machine.

4. The automatic packaging and liquid injection production line according to claim 1, characterized in that: The reflow line is installed directly above the film sealing machine. One end of the reflow line is connected to the film sealing machine, and the other end is connected to the baking room.

5. The automatic packaging and liquid injection production line according to claim 1 is characterized in that: The return line comprises a sealing cover and a return mechanism installed in the sealing cover.

6. The automatic packaging and liquid injection production line according to claim 1, characterized in that: The conveying line comprises a dustproof shell and a feeding mechanism located in the dustproof shell.

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