CN220189740U

CN220189740U - Vacuum pressure alternating continuous production line

Info

Publication number: CN220189740U
Application number: CN202321752685.6U
Authority: CN
Inventors: 朱其安; 冼智彬
Original assignee: Guangdong Zhongde Pressure Vessel Co ltd
Current assignee: Guangdong Zhongde Pressure Vessel Co ltd
Priority date: 2023-07-06
Filing date: 2023-07-06
Publication date: 2023-12-15
Anticipated expiration: 2033-07-06

Abstract

The utility model provides a vacuum pressure alternating continuous production line, which belongs to the field of high-pressure production equipment and comprises at least five cavities which are sequentially communicated, wherein each cavity is a feeding cavity, a processing cavity, a transition cavity, a processing cavity and a discharging cavity, the processing cavity is a high-pressure cavity or a vacuum cavity, two adjacent cavities are connected through a gate valve, a conveying structure from one end of each cavity to the other end of each cavity is arranged in each cavity, a line connecting port for sealing connection of an internal circuit and an external circuit is arranged on each cavity, each cavity is provided with a plurality of air ports which are communicated with the internal circuit and the external circuit and are connected to a vacuumizing device and a high-pressure air supply device through the air ports, and a battery is driven by the conveying structure to sequentially pass through each cavity to finish the front-end procedure of formation, so that continuous feeding and formation treatment are realized, a great amount of time waste caused by standing and waiting is not needed, and the production efficiency is greatly improved; in addition, only the feeding cavity, the transition cavity and the discharging cavity are inflated and deflated, so that gas and energy sources can be saved.

Description

Vacuum pressure alternating continuous production line

Technical Field

The utility model belongs to the field of high-pressure production equipment, and particularly relates to a vacuum pressure alternating continuous production line.

Background

Battery formation refers to the process of first charging a lithium ion battery in order to render the battery electrochemically active. There are various battery formation modes, negative pressure formation is one of which, in the process of negative pressure formation, a battery is first placed in a high-pressure nitrogen environment and raised to a proper temperature, then converted into a negative pressure or even a vacuum state, and then left to stand, so that the gas in the battery is discharged, and then the subsequent formation process is performed.

The existing negative pressure formation equipment is only provided with one cavity, high-pressure nitrogen is firstly filled, then vacuum is pumped, and the whole process batteries are in a static state, so that the formation process of one batch of batteries can be carried out at a time during production, the next batch of batteries can be carried out after the formation of the previous batch of batteries is completed, and the production efficiency is influenced by a large amount of static time. And the whole cavity is required to be operated during each inflation, deflation and vacuumizing, so that the production efficiency is affected, and the gas and energy sources are wasted greatly.

Disclosure of Invention

Based on the problems in the prior art, the utility model provides a vacuum pressure alternating continuous production line, which comprises at least five high-pressure resistant and sealed cavities which are sequentially communicated, wherein each cavity is a feeding cavity, a processing cavity, a transition cavity, a processing cavity and a discharging cavity, the processing cavity is a high-pressure cavity or a vacuum cavity, two adjacent cavities are connected through a gate valve, a conveying structure from one end of each cavity to the other end of each cavity is arranged, a line connecting port for sealing and connecting an inner line and an outer line is arranged on each cavity, and each cavity is provided with a plurality of air ports which are communicated with the inner line and the outer line and are connected to a vacuumizing device and a high-pressure air supply device through the air ports.

The device comprises a feeding cavity, a high-pressure cavity, a transition cavity, a vacuum cavity and a discharging cavity, or the feeding cavity, the vacuum cavity, the transition cavity, the high-pressure cavity and the discharging cavity, wherein the feeding end of the feeding cavity and the discharging end of the discharging cavity are provided with flip valves.

The conveying structure comprises a conveying motor fixedly arranged in a cavity, a plurality of mounting beams are arranged in the cavity, mounting brackets are fixedly arranged on the mounting beams, two ends of each mounting bracket are respectively and rotatably connected with one reversing roller, a plurality of carrier rollers are uniformly arranged on the upper part of each mounting bracket and positioned between the two reversing rollers, one reversing roller is connected to the conveying motor in a transmission manner and is driven to rotate by the conveying motor, and all carrier rollers and reversing rollers in the same cavity are coated with a conveying belt with the same closed loop.

The starting end of the conveying structure is also provided with a connecting assembly, and the connecting assembly comprises four swing rods with equal length, two connecting beams and a plurality of carrier rollers; the four swing rods are in a group, the swing rods of each group are mutually parallel, one swing rod is rotationally connected to the middle part of one connecting beam, the other swing rod is rotationally connected to the end part of the corresponding connecting beam, one end of each swing rod, which is far away from the connecting beam, is rotationally connected to one side of the mounting bracket, and the connecting beam is parallel to the mounting bracket; the other group of swing rods are connected to the other end of the mounting bracket and the other connecting beam in the same mode, the carrier roller is rotatably arranged between the two connecting beams, the carrier roller is coated with a conveying belt with the same closed loop, and one swing rod is connected to a rotating motor fixedly arranged on the mounting bracket in a transmission manner.

The support bulge is arranged on one side or two sides of the initial end of the mounting bracket, the support bulge is in a right-angle triangle shape, and the inclined edge of the support bulge is leaning against the swinging rod, when the bearing roller swinging to the connecting beam of the swinging rod and the bearing roller on the mounting bracket are at the same height, the swinging rod is contacted with the inclined edge of the corresponding support bulge.

The utility model has the beneficial effects that:

1. the feeding cavity, the processing cavity, the transition cavity, the processing cavity and the discharging cavity of intercommunication have been formed to a plurality of cavitys cooperation push-pull valve, and rethread conveying structure drives the front end process that each cavity was passed in proper order in order to accomplish the formation of battery, realizes continuous feeding and formation processing, need not to stand and wait and lead to a large amount of wastes of time, very big promotion production efficiency.

2. Because the feeding cavity, the transition cavity and the discharging cavity are arranged, the charging cavity, the discharging cavity and the discharging cavity are only operated for each time of inflation, deflation and vacuum pumping, and the feeding cavity, the transition cavity and the discharging cavity are only used for environment transition, so that the volume can be reduced as much as possible, and the gas and the required energy are greatly saved relative to the original mode of operating the whole cavity.

Drawings

Fig. 1 is a schematic perspective view of a vacuum pressure alternating continuous production line, wherein a flip valve at one end is in an open state.

Fig. 2 is a schematic view of a partial three-dimensional structure of a vacuum pressure alternating continuous production line, with a partial cavity hidden.

Fig. 3 is a schematic illustration of the mating of the delivery structure and the connection assembly.

Fig. 4 is an enlarged view at a of fig. 3.

Fig. 5 is a schematic view of a section of a cavity and related structures.

Fig. 6 is a schematic view of the mating of the delivery structure and the connection assembly, at another angle.

Fig. 7 is an enlarged view at B of fig. 6.

Detailed Description

The utility model is described in detail below with reference to the drawings and the specific embodiments.

The vacuum pressure alternating continuous production line is used for a formation process of a lithium battery and comprises five high-pressure-resistant and sealed cavities 1 which are sequentially communicated, wherein each cavity 1 is sequentially provided with a feeding cavity 1a, a high-pressure cavity 1b, a transition cavity 1c, a vacuum cavity 1d and a discharging cavity 1e, two adjacent cavities 1 are connected through a gate valve 2, a flip valve 4 is arranged at a feeding end of the feeding cavity 1a and a discharging end of the discharging cavity 1e, and a conveying structure 3 from one end of each cavity 1 to the other end is arranged in each cavity 1; the conveying structure 3 comprises a conveying motor 31 fixedly arranged in the cavity 1, a mounting platform is arranged at the lower part in the cavity 1, the conveying motor 31 is fixedly arranged on the mounting platform, two mounting beams 13 are arranged in the cavity 1, a mounting bracket 32 is fixedly arranged on the mounting beams 13, the mounting bracket 32 consists of two mounting plates, two ends of the mounting bracket 32 are respectively and rotatably connected with a reversing roller 33, a plurality of carrier rollers 34 are uniformly arranged at the upper part of the mounting bracket 32 and at the position between the two reversing rollers 33, one reversing roller 33 is connected to the conveying motor 31 through belt transmission and is driven to rotate by the conveying motor 31, and all the carrier rollers 34 and the reversing rollers 33 in the same cavity 1 are coated with a same closed-loop conveying belt (for clearly displaying the structure, the conveyer belt is not shown in the drawing, in this embodiment, the conveyer belt in the conveying structure 3 is divided into a left conveyer belt and a right conveyer belt for avoiding the belt of the conveying motor 31, the two conveyer belts are all conventional conveyer belts), a line connection port 11 for connecting inner and outer lines in a sealing way is arranged on each cavity 1, the line connection port 11 is a conventional sealing connection port for supplying power and communication to an electric structure in the cavity 1, each cavity 1 is provided with eight air ports 12 which are communicated with the inner and outer parts, two air ports 12 are connected to conventional vacuumizing equipment, the two air ports 12 are connected to a high-pressure nitrogen generator, and the rest of the air ports 12 are plugged by sealing plugs so as to avoid air leakage. In other use scenes, a plurality of gas generators can be connected according to the requirements, so that the actual requirements can be met, and the gas recycling device can be connected to recycle the gas.

As a preferred embodiment, the starting end of the conveying structure 3 is further provided with a connecting assembly 5, and the connecting assembly 5 comprises four swing rods 51 with equal length, two connecting beams 52 and a plurality of carrier rollers 34; the four swing rods 51 are in a group of two, the swing rods 51 of each group are mutually parallel, one swing rod 51 is rotationally connected to the middle part of one connecting beam 52, the other swing rod 51 is rotationally connected to the end part of the corresponding connecting beam 52, one end of the two swing rods 51 away from the connecting beam 52 is rotationally connected to one side of the mounting bracket 32, the connecting beam 52 is parallel to the mounting bracket 32, and the swing rods 51, the connecting beam 52 and the mounting bracket 32 on the same side form a parallelogram; the other group of swinging rods 51 are connected to the other end of the mounting bracket 32 and the other connecting beam 52 in the same way, the supporting roller 34 is rotatably arranged between the two connecting beams 52, the conveying structure 3 and the supporting roller 34 in the connecting assembly 5 are the same in structure, the supporting roller 34 is covered with the same closed-loop conveying belt, one swinging rod 51 is connected to a rotating motor 53 fixedly arranged on the mounting bracket 32 in a transmission way, the mounting bracket 32 is provided with supporting bulges 54 (not shown in the middle part of the drawing) on both sides of the starting end, the supporting bulges 54 are in right-angle triangle shapes and the inclined edges lean against the swinging rods 51, and when the swinging rods 51 swing to the supporting roller 34 on the connecting beam 52 and the supporting roller 34 on the mounting bracket 32 are at the same height, the inclined edges of the swinging rods 51 and the corresponding supporting bulges 54 are contacted, so that the supporting capacity of the swinging rods 51 is improved, and the supporting capacity of the supporting roller 34 is better. When the battery approaches the tail end of the conveying structure 3, the corresponding gate valve 2 is opened, the rotating motor 53 of the next conveying structure 3 is started to drive the swing rod 51 to swing towards the front end, so that the connecting beam 52 and the corresponding bearing roller 34 swing forwards until the bearing roller 34 on the connecting beam 52 and the bearing roller 34 on the mounting bracket 32 are at the same height, and at the moment, the distance between the two conveying structures 3 is filled, so that the transition of the battery is smoother and smoother. When the battery passes, the rotary motor 53 rotates reversely, the connecting beam 52 resets, and the gate valve 2 is closed again.

When the production line in this embodiment is used, all gate valves 2 are closed first, so that the high-pressure cavity 1b and the vacuum cavity 1d form independent sealed cavities, then the two cavities are vacuumized, and then nitrogen is filled into the high-pressure cavity 1b until the required air pressure is reached.

The flip valve 4 at the feeding end is opened, a first (first batch of) battery is placed, the flip valve 4 is closed, the environment of the feeding cavity 1a is converted into a high-pressure nitrogen environment through air suction and air inflation, the gate valve 2 between the feeding cavity 1a and the high-pressure cavity 1b is opened, the battery is conveyed to the high-pressure cavity 1b by the conveying structure 3, after the battery enters the high-pressure cavity 1b, the corresponding conveying structure 3 drives the battery to continuously move towards the excessive cavity 1c, at the moment, the conveying speed of the battery is required to be adjusted in advance according to the high-pressure standing time of the battery (or the battery is made to have enough travel by manufacturing the high-pressure cavity with corresponding length), so that the battery has enough high-pressure processing time is ensured. At the same time, the feeding cavity 1a repeats the previous steps to continue feeding, so that a plurality of batteries are sequentially arranged in the high-pressure cavity 1b and all are approaching the transition cavity 1 c. When the first (first batch) of batteries approaches the excessive cavity 1c, the excessive cavity 1c is converted into a high-pressure nitrogen environment, the corresponding gate valve 2 is opened, the batteries enter the excessive cavity 1c, the corresponding gate valve 2 is closed, the excessive cavity 1c starts to be converted into a vacuum environment, the corresponding gate valve 2 is opened, the batteries enter the vacuum cavity 1d, and the batteries are sequentially arranged and continuously move towards the discharging cavity 1e in the vacuum cavity 1d similar to the high-pressure cavity 1 b. Similarly, the discharging cavity 1e is firstly converted into a vacuum environment, the flip valve 4 is opened to discharge after the battery is received, and the vacuum cavity 1d and the high-pressure cavity 1b can realize continuous feeding, discharging and corresponding treatment through buffering of the feeding cavity 1a, the transition cavity 1c and the discharging cavity 1e, so that standing waiting time is not needed, and the production efficiency is improved.

The above examples illustrate only one embodiment of the utility model, which is described in more detail and is not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. The utility model provides a vacuum pressure alternating continuous production line, its characterized in that includes at least five high pressure resistant and sealed cavitys (1) that communicate in proper order, cavity (1) are feeding chamber (1 a), processing chamber, excessive chamber (1 c), processing chamber and ejection of compact chamber (1 e) in proper order, processing chamber be high-pressure chamber (1 b) or vacuum chamber (1 d), connect through push-pull valve (2) between two adjacent cavitys (1), all be provided with in every cavity (1) from one end of cavity (1) to conveying structure (3) of the other end, all be provided with on every cavity (1) be used for sealing connection inside and outside circuit connector (11), every cavity (1) all are provided with a plurality of inside and outside gas ports (12) of intercommunication to all be connected to evacuation equipment and high-pressure air feed equipment through gas port (12).

2. A vacuum pressure alternating continuous production line according to claim 1, wherein the cavity (1) is provided with five cavities, and is sequentially provided with a feeding cavity (1 a), a high-pressure cavity (1 b), a transition cavity (1 c), a vacuum cavity (1 d) and a discharging cavity (1 e), or is sequentially provided with the feeding cavity (1 a), the vacuum cavity (1 d), the transition cavity (1 c), the high-pressure cavity (1 b) and the discharging cavity (1 e), and a flip valve (4) is arranged at the feeding end of the feeding cavity (1 a) and the discharging end of the discharging cavity (1 e).

3. A vacuum pressure alternating continuous production line according to claim 2, characterized in that the conveying structure (3) comprises a conveying motor (31) fixedly installed in the cavity (1), a plurality of mounting beams (13) are installed in the cavity (1), mounting brackets (32) are fixedly installed on the mounting beams (13), one reversing roller (33) is rotatably connected to each of two ends of each mounting bracket (32), a plurality of carrying rollers (34) are uniformly installed on the upper portion of each mounting bracket (32) and located at positions between the two reversing rollers (33), one reversing roller (33) is connected to the conveying motor (31) in a transmission mode and is driven to rotate by the conveying motor (31), and all carrying rollers (34) and reversing rollers (33) in the same cavity (1) are covered with a same closed-loop conveying belt.

4. A vacuum pressure alternating continuous production line according to claim 3, characterized in that the starting end of the conveying structure (3) is also provided with a connecting assembly (5), and the connecting assembly (5) comprises four swing rods (51) with equal length, two connecting beams (52) and a plurality of carrier rollers (34); the four swing rods (51) are in a group, the swing rods (51) of each group are arranged in parallel, one swing rod (51) is rotationally connected to the middle part of one connecting beam (52), the other swing rod (51) is rotationally connected to the end part of the corresponding connecting beam (52), one end, away from the connecting beam (52), of each swing rod (51) is rotationally connected to one side of the mounting bracket (32), and the connecting beam (52) is parallel to the mounting bracket (32); the other group of swinging rods (51) are connected to the other end of the mounting bracket (32) and the other connecting beam (52) in the same mode, the supporting roller (34) is rotatably arranged between the two connecting beams (52), the supporting roller (34) is covered with the same closed-loop conveying belt, and one swinging rod (51) is connected to a rotating motor (53) fixedly arranged on the mounting bracket (32) in a transmission mode.

5. A vacuum pressure alternating continuous production line according to claim 4, characterized in that the mounting bracket (32) is provided with a supporting protrusion (54) on one side or both sides of the starting end, the supporting protrusion (54) is in a right-angled triangle shape and the sloping side is leaning against the swinging rod (51), when the swinging rod (51) swings to the same height as the supporting roller (34) on the connecting beam (52) and the supporting roller (34) on the mounting bracket (32), the swinging rod (51) contacts with the sloping side of the corresponding supporting protrusion (54).