Annular baking system for lithium battery

Abstract

The utility model relates to an annular baking system for lithium batteries, which comprises a feeding mechanism used for conveying lithium batteries to be baked, and the feeding mechanism comprises at least one group of feeding positions; the discharging mechanism is used for conveying the baked lithium batteries and comprises at least one group of discharging positions for placing the baked batteries, at least two groups of baking mechanisms are further arranged between the feeding mechanism and the discharging mechanism, the feeding positions, the discharging positions and the baking mechanisms are annularly distributed, and a dispatching module is arranged in the middle of the annular shape; the dispatching module carries the lithium battery to be baked from the feeding position to the baking mechanism to be baked and carries the lithium battery baked in the baking mechanism to the discharging position. The drying furnaces, the feeding position and the discharging position are annularly arranged, so that the carrying efficiency is improved, the batteries to be baked can be carried in the baking process, the whole carrying can be completed by arranging one dispatching module, the cost is lower, the distance between the carrying module and each group of drying furnaces is the same, the arrangement is simpler, and the system arrangement and operation are more coordinated; and the productivity is higher.

Description

Technical Field

[0001] The utility model relates to a lithium battery baking system, in particular to a lithium battery ring baking system. Background Art

[0002] In the industry, conventional lithium battery baking lines usually put the batteries into fixtures, and then transport the fixtures to a single furnace through a handling system for drying and baking. As the volume of the vacuum chamber increases, the manufacturing difficulty and cost increase. When using a tunnel furnace form, with a gear chain conveying method and non-contact heating and drying, various equipment is often arranged side by side, which requires a large floor area, resulting in the baking system occupying a large area of the factory building. At the same time, due to the side-by-side arrangement, the handling efficiency is low, or multiple sets of handling equipment need to be equipped for handling to improve the efficiency, resulting in an increase in cost.

[0003] Chinese Patent Publication No. CN107462068A discloses a circulating furnace type automatic lithium battery baking system, which is characterized by including a circulating moving line, a drying furnace, a manipulator, and a cooling furnace assembly. The circulating moving line includes a plurality of box moving mechanisms, and the box moving mechanisms are connected end to end to form the circulating moving line. At least one drying furnace is installed on the circulating moving line. The manipulator includes a fixture loading manipulator and a fixture unloading manipulator. The fixture loading manipulator and the fixture unloading manipulator are respectively arranged at both ends of the circulating moving line. The drying furnace is arranged on the circulating moving line and circulates on the circulating moving line, and respectively enters the working spaces of the fixture loading manipulator and the fixture unloading manipulator. The present invention can greatly reduce the contact time of the lithium battery with air after drying, and automatically complete the drying and cooling treatment processes of the lithium battery. The lithium battery baking system described in this patent is arranged side by side, resulting in a large occupied area of the baking system, which is not conducive to the use of the factory building area. At the same time, the battery handling efficiency of this method is low, or multiple sets of equipment need to be set up for handling, and the equipment cost is high. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is that when various equipment is arranged side by side, it requires a large floor area, resulting in the baking system occupying a large area of the factory building. At the same time, due to the side-by-side arrangement, the handling efficiency is low, or multiple sets of handling equipment need to be equipped for handling to improve the efficiency, resulting in an increase in cost. In view of the above defects of the prior art, a lithium battery ring baking system is provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] Construct a lithium battery ring baking system, including a feeding mechanism for conveying the lithium batteries to be baked. The feeding mechanism includes a feeding conveyor line for conveying the lithium batteries to be baked and a feeding module for carrying the lithium batteries to be baked on the feeding conveyor line. It also includes at least one feeding position. The feeding module carries the lithium batteries to be baked to the feeding position. The baking system also includes a discharging mechanism for conveying the baked lithium batteries. The discharging mechanism includes a discharging conveyor line for conveying the baked lithium batteries and at least one discharging position for placing the baked batteries. A discharging module is arranged between the discharging conveyor line and the discharging position. The discharging module carries the baked lithium batteries from the discharging position to the discharging conveyor line. At least two baking mechanisms are also arranged between the feeding mechanism and the discharging mechanism. The feeding position, the discharging position and the baking mechanisms are distributed in a ring shape, and a scheduling module is arranged in the middle of the ring. The scheduling module carries the lithium batteries to be baked from the feeding position to the baking mechanisms for baking and carries the baked lithium batteries in the baking mechanisms to the discharging position.

[0007] Preferably, at least one layer of fixtures for placing batteries is arranged on both the feeding position and the discharging position. The baking mechanism includes a drying furnace and a heat source. The heat source is placed inside the drying furnace and / or on the fixture. The heat source enters the drying furnace to generate heat to form a baking environment inside the drying furnace.

[0008] Preferably, the heat source is placed on the fixture. After the fixture enters the drying furnace to obtain power and communicate, the heat source is heated to form a baking environment inside the drying furnace.

[0009] Preferably, the feeding position, the discharging position and the baking mechanisms are distributed in a circular shape. The scheduling module is placed at the center of the circle so that the distance from the scheduling module to each feeding position, discharging position and baking mechanism is basically the same. After the baking mechanism is heated, it is evacuated to form a vacuum environment for baking.

[0010] Preferably, the baking system also includes a lithium battery detection mechanism. The lithium battery detection mechanism includes a conveyor line for conveying the batteries to be detected and an output line for outputting the detected batteries after baking. The feeding mechanism carries the batteries to be detected on the conveyor line to the feeding position and is carried by the scheduling module to the baking mechanism for baking. After baking, it is carried to the discharging position. The discharging mechanism carries the detected batteries at the discharging position to the conveyor line.

[0011] Preferably, the lithium battery detection mechanism also includes a pairing position. Before the feeding mechanism carries the test batteries to the feeding position, it first carries them to the pairing position for information pairing. The discharging mechanism carries the baked test batteries from the discharging position to the pairing position for information pairing and then carries them to the output line.

[0012] Preferably, the baking system further includes a cooling mechanism, which includes a transfer module and a cooling furnace. The transfer module transports the baked lithium battery at the unloading position to the cooling furnace for cooling, and the unloading mechanism transports the cooled lithium battery to the unloading conveyor line.

[0013] Preferably, the cooling furnace includes at least one set of cooling conveyor lines and corresponding air coolers. The air coolers create a circulating cooling environment on the cooling conveyor lines.

[0014] Preferably, a detection module is arranged on the loading conveyor line. The detection module obtains lithium battery information, and the baking system is provided with a main electric control cabinet to control the movement of each module.

[0015] The beneficial effects of the present utility model are as follows: By arranging the drying furnace in a circular shape with the loading position and the unloading position, the handling efficiency is improved. During the baking process, the handling of the batteries to be baked can also be achieved, and only one set of scheduling modules is required to complete the overall handling, with lower costs. The distance between the handling module and each drying furnace is the same, and its setting is simpler. The overall operation of the system is more coordinated and the production capacity is higher. At the same time, the heat source is placed in the drying furnace and / or on the fixture, providing multiple baking heating methods. Multiple sets of drying furnaces can be set, and multiple sets of fixtures can also be set, improving the handling efficiency. The cooling furnace is set for circulating cooling, making the cooling effect of the baked battery better. At the same time, the circular setting achieves the same production capacity, significantly reducing the floor area in the length direction of the production line, saving the factory construction cost, improving the utilization rate in the width and height directions of the factory building, and due to the reduction in the length direction, the beat of the scheduling system is reduced, improving the production capacity of the entire line, saving the operation cost, and at the same time reducing the drying area of the factory building, significantly reducing the operation cost of maintaining the drying environment. Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will further illustrate the present utility model in conjunction with the drawings and embodiments. The drawings in the following description are only partial embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts:

[0017] Figure 1 It is a schematic structural diagram of the circular baking system of the preferred embodiment of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the circular baking system (removing the drying furnace) of the preferred embodiment of the present utility model. Detailed Embodiments

[0019] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model. Obviously, the described embodiments are partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0020] A lithium battery ring baking system according to a preferred embodiment of the present utility model; as Figure 1-2 shown, it includes a loading belt line 1 for conveying the batteries to be baked, and a loading module 2 for conveying the batteries to be baked on the loading belt line. The loading module conveys the batteries to be baked to the loading position 3 for placement. There are two groups of loading positions 2 in total, and each group of loading positions can be provided with jigs for placing multiple layers of batteries to be baked. The jigs are used as carriers for the batteries to be baked for movement. Then, the scheduling module 4 transports the jigs on each group of loading positions into the drying furnace 5 for drying. After the batteries to be baked are baked in the drying furnace, the scheduling module 4 transports the jigs that have been dried in the drying furnace to the unloading position 6. The unloading position and the loading position can adopt the same design with multiple layers of distribution, so that each group of unloading positions and loading positions can store enough batteries. The baked batteries entering the unloading position are transported to the cooling belt line 8 through the transfer module 7 for cooling and conveying. When they are conveyed to the end of the cooling belt line, the cooling is completed. The unloading module 10 transports the cooled batteries to the unloading belt line 11 for conveying to the next process, and the entire battery baking and conveying is completed.

[0021] Specifically, as Figure 1-2 shown, during the process of the batteries to be baked from the loading belt line 1 to the loading position 3, a detection module can also be set on the loading belt line to obtain information about the batteries to be baked. The detection module can adopt, for example, ccd camera detection.

[0022] Furthermore, as Figure 1-2 shown, the drying furnace is set to 6 groups in total and is distributed in a ring shape, that is, the drying furnace 5 forms a ring with the loading position 3 and the unloading position 6, and the scheduling module 4 is placed in the middle of the ring to reduce the distance between the scheduling module and each group of drying furnaces. Preferably, it is arranged in a circular shape, and the scheduling module is placed in the central part of the circle, so that the distance between the scheduling module and each group of drying furnaces is equal. At the same time, since the distance between the scheduling module and each group of drying furnaces, loading positions, and unloading positions is equal, only one group of scheduling modules can be set to complete the handling work, reducing the cost of the equipment and improving the handling efficiency.

[0023] Furthermore, as Figure 1-2As shown, during the baking process of the battery to be baked entering the drying furnace, the heat source can be placed inside the drying furnace 5. At this time, the fixture only serves as a battery carrier to place the battery to be baked, and then it can enter the drying furnace for baking. The heat source can also be placed on the fixture. At this time, the fixture can not only serve as a battery carrier but also bake the battery. The scheduling module 4 transports the fixture with the battery placed at the loading position into the drying furnace, and then docks and takes power and communicates inside the drying furnace to make the heating plate start heating, thereby realizing the baking of the battery. In order to increase the number of batteries baked in each drying furnace, each drying furnace can be set with multiple layers, and the fixture can also be set with multiple layers. When the scheduling module 4 transports the fixture, it can directly transport multiple-layer fixtures into the drying furnace, improving the efficiency of single transportation. The scheduling module can also adopt forms such as RGV, AGV, and stacker, and the fixture can also be designed in the mode of a multi-layer fixture cart.

[0024] Furthermore, as Figure 1-2 shown, on the cooling belt line 8, cold air can be circulated and transported to the cooling belt line by the cold air blower 9, or a cooling furnace composed of the cooling belt line and the cold air blower can be used for circulating cooling to extend the cooling time of the baked battery. The cooling belt line can also be set in multiple groups and cooled by the cold air blower in a cycle, with better cooling effect.

[0025] Furthermore, as Figure 1-2 shown, the baking system further includes an artificial intervention module 12 and a pairing position 13 corresponding to the artificial intervention module. The test battery is placed on the artificial intervention module by the operator, and then the feeding module clamps the test battery to the pairing position to pair the test battery information. After the pairing is completed, it is transported to the loading position, and then the scheduling module transports the test battery and the battery to be baked into the drying furnace for baking. After baking, the scheduling module 4 transports the baked test battery to the trolley NG position 16, and the baked battery for normal detection is transported to the unloading position. The baked test battery moved to the trolley NG position is transported to the pairing position 13 by the transfer module 7 for information pairing again. After the pairing is completed, it is transported to the test battery output line 14 and tested by the operator. When the test baking result meets the requirements, the transfer module transports the baked battery from the unloading position to the cooling belt line for cooling, and then conveys it to the unloading belt line to complete the overall baking of the battery. The baking system is equipped with a main electric control cabinet 15 to control all modules and components, and a display is set to display relevant information and regulate relevant modules and components. It should be noted that multiple groups of batteries to be baked and test batteries can be transported to the fixture simultaneously. When the fixture has multiple layers, one or more layers can be used as the fixture layer for test batteries, and the set temperature of each baking furnace may not be exactly the same, enabling the simultaneous baking of different batteries, and significantly improving the transportation and baking efficiency.

[0026] During the baking process, the battery to be baked is placed on the feeding belt line 1 and scanned to obtain information about the battery to be baked. Then, the feeding module 2 grabs the scanned battery to be baked and places it in a fixture for tray assembly. At the same time, the NG battery is placed in the manual intervention module 12, and the feeding module grabs the NG battery, performs information pairing at the pairing position 13, and then places it in the fixture for tray assembly. When assembling the tray, the NG battery can be configured as needed. After the battery to be baked and the test battery in the fixture tray at the feeding position 3 are assembled into a tray, the scheduling module 4 transports the assembled fixture or fixture cart into the drying furnace 5. After the drying furnace is filled with the batteries to be baked, the furnace door is closed and heating begins. Heating can be carried out using the heat source inside the drying furnace, or by taking power and communicating inside the drying furnace through the heat source on the fixture cart for heating, so as to form a heating environment inside the drying furnace. After the set heating time is completed, vacuum baking is performed inside the drying furnace. Until the baking time corresponding to the baking process is completed, the scheduling module 4 transports the baked battery to the discharging position 6. Among them, the baked NG battery is transported to the NG position 16 of the cart. The transfer module 7 transports the baked test battery to the pairing position for information pairing again, and then transports it to the test battery output line 14 for conveying to the manual inspection position for inspection. After the baked test battery meets the requirements, the transfer module 7 transports the baked battery at the discharging position to the cooling belt line 8 for cooling. The cooling furnace composed of the cooling belt line and the air cooler 9 cools the baked battery, and then the discharging module 10 transports the baked battery to the discharging belt line 11 and conveys it to the next working station, and the baking operation is completed.

[0027] It should be understood that the present utility model is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present utility model, various changes or equivalent replacements can be made to these features and embodiments. In addition, under the teaching of the present utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present utility model.

Claims

1. A lithium battery annular baking system, comprising a feeding mechanism for conveying the lithium batteries to be baked. The feeding mechanism includes a feeding conveyor line for conveying the lithium batteries to be baked, and a feeding module for carrying the lithium batteries to be baked on the feeding conveyor line. It further includes at least one feeding position. The feeding module carries the lithium batteries to be baked to the feeding position. The baking system further includes a discharging mechanism for conveying the baked lithium batteries. The discharging mechanism includes a discharging conveyor line for conveying the baked lithium batteries, and at least one discharging position for placing the baked batteries. A discharging module is arranged between the discharging conveyor line and the discharging position. The discharging module carries the baked lithium batteries from the discharging position to the discharging conveyor line. At least two baking mechanisms are further arranged between the feeding mechanism and the discharging mechanism, and it is characterized in that: The loading position, unloading position and baking mechanism are annularly distributed, and a scheduling module is arranged in the middle of the annulus. The scheduling module transports the lithium batteries to be baked from the loading position to the baking mechanism for baking, and transports the lithium batteries baked in the baking mechanism to the unloading position.

2. The baking system according to claim 1, characterized in that: At least one layer of clamps for placing batteries is arranged at both the loading position and the unloading position. The baking mechanism includes a drying furnace and a heat source. The heat source is placed inside the drying furnace and / or on the clamp. The heat source enters the drying furnace to generate heat, forming a baking environment inside the drying furnace.

3. The baking system according to claim 2, wherein: The heat source is placed on the clamp. After the clamp enters the drying furnace to obtain power and communicate, the heat source is heated to form a baking environment inside the drying furnace.

4. The baking system according to claim 1, characterized in that: The loading position, unloading position and baking mechanism are circularly distributed. The scheduling module is placed at the center of the circle so that the distance from the scheduling module to each group of loading position, unloading position and baking mechanism is basically the same. After the baking mechanism is heated, it is evacuated to form a vacuum environment for baking.

5. The baking system according to any one of claims 1-4, characterized in that: This baking system further includes a lithium battery detection mechanism. The lithium battery detection mechanism includes a conveyor line for transporting and detecting batteries and an output line for outputting the detected batteries after baking. The loading mechanism transports the detected batteries on the conveyor line to the loading position, and is transported by the scheduling module to the baking mechanism for baking, and then transported to the unloading position after baking. The unloading mechanism transports the detected batteries at the unloading position to the conveyor line.

6. The baking system according to claim 5, wherein: The lithium battery detection mechanism further includes a pairing position. Before the loading mechanism transports the test battery to the loading position, it is first transported to the pairing position for information pairing. The unloading mechanism transports the baked test battery from the unloading position to the pairing position for information pairing and then to the output line.

7. The baking system according to claim 5, characterized in that: This baking system further includes a cooling mechanism. The cooling mechanism includes a transfer module and a cooling furnace. The transfer module transports the lithium batteries baked at the unloading position to the cooling furnace for cooling. The unloading mechanism transports the cooled lithium batteries to the unloading conveyor line.

8. The baking system according to claim 7, wherein: The cooling furnace includes at least one group of cooling conveyor lines and corresponding air coolers. The air coolers form a circulating cooling environment on the cooling conveyor lines.

9. The baking system according to claim 1, characterized in that: A detection module is arranged on the loading conveyor line. The detection module acquires lithium battery information. This baking system is provided with a main electric control cabinet to control the movement of each module through the main electric control cabinet.

Images