Hot pressing station conveying mechanism of lithium battery hot pressing machine

Abstract

The utility model relates to a hot-pressing station conveying mechanism of a lithium electric hot press in the technical field of hot presses. The hot-pressing station conveying mechanism comprises a mounting frame, a driving assembly and a conveying assembly, the driving assembly is arranged on the side face of one end of the mounting frame; the conveying assembly is arranged in the mounting frame and used for placing battery cells, the conveying assembly comprises a conveying belt, a synchronous belt, a driven shaft and a power shaft, the driven shaft and the power shaft are rotatably arranged at the two ends in the mounting frame respectively, the synchronous belt is wound around the driven shaft and the power shaft, one end of the power shaft is in driving connection with the driving assembly, and the other end of the power shaft is in driving connection with the driving assembly. The two ends of the conveying belt are connected with the power shaft in a rolling and winding mode through the driven shaft, the power shaft is driven through the driving assembly, and then the synchronous belt drives the driven shaft so that the top face of the conveying belt can move horizontally. And the stepping motor and the high-temperature-resistant and anti-static conveying belt are adopted for conveying, so that the problem that the battery cells are damaged in the process of sucking, clamping, pressing and carrying the battery cells is effectively solved, and the production precision is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot presses, in particular to a conveying mechanism for a hot pressing station of a lithium electric hot press. Background Art

[0002] Lithium batteries are batteries with high efficiency, high energy density, light weight, fast charging, and long life, and are widely used. Hot pressing is one of the necessary processes for preparing the positive and negative electrodes of lithium batteries. First of all, the compaction performance of the positive and negative electrodes of lithium batteries is directly related to the performance of the battery. Hot pressing can improve the density of the electrode material, strengthen the contact between the electrode materials, and improve the overall performance of the battery. Secondly, hot pressing can also change the structure of the electrode material, which is beneficial to increasing the specific surface area of the electrode, improving the capacity and output power of the electrode. Finally, the shaping and dimensional accuracy requirements of the positive and negative electrodes of lithium batteries are extremely high. Hot pressing can improve the deformability and plasticity of the electrode material, thereby preparing electrodes of higher quality.

[0003] Most of the existing conveying mechanisms of hot presses convey the battery cells by vacuum suction of the battery cells and clamping of the battery cells by air cylinders. However, both of the above have deficiencies. Problems and disadvantages of vacuum suction of battery cells: The diaphragm of the battery cell is thin, and there is a phenomenon of tearing the diaphragm during vacuum suction; vacuum suction cups leave suction marks on the diaphragm of the battery cell. Problems and disadvantages of clamping the battery cells by air cylinders: There cannot be a gap between the battery cell and the hot press platen, resulting in no clearance for taking and discharging the battery cell on the clamping jaw platen, and there is a situation where the clamping jaw damages the battery cell; the four clamping jaw positions need to be accurately docked with the four-layer platen of the hot press; the debugging difficulty is large.

[0004] Therefore, there is an urgent need for a conveying mechanism for a hot pressing station of a lithium electric hot press to solve the above problems. Summary of the Utility Model

[0005] The purpose of the present utility model is to provide a conveying mechanism for a hot pressing station of a lithium electric hot press, which can avoid tearing and suction marks on the diaphragm of the battery cell during the conveying process of the battery cell and will not cause damage to the battery cell, improve the production accuracy, and reduce the debugging difficulty.

[0006] In order to solve the above technical problems, the present utility model adopts the following technical solutions:

[0007] The conveying mechanism for a hot pressing station of a lithium electric hot press includes:

[0008] A mounting frame;

[0009] A driving component, which is arranged on one side surface of one end of the mounting frame;

[0010] The conveying assembly is arranged inside the mounting frame and is used for placing the battery cells. The conveying assembly includes a conveying belt, a synchronous belt, a driven shaft, and a driving shaft. The driven shaft and the driving shaft are respectively rotatably arranged at two ends inside the mounting frame. The synchronous belt is wound around the driven shaft and the driving shaft. One end of the driving shaft is drivingly connected to the driving assembly. Both ends of the conveying belt are respectively wound and connected to the driven shaft and the driving shaft through winding, and the conveying belt located between the driven shaft and the driving shaft has a tendency to be tightened due to the winding of the driven shaft and the driving shaft. By driving the driving shaft through the driving assembly, the synchronous belt drives the driven shaft, so that the top surface of the conveying belt moves horizontally.

[0011] Further, the mounting frame includes a baffle, two side plates, two bearing seats, and two bearing mounting plates. The two bearing seats are respectively arranged on two side surfaces of the baffle. Adjusting blocks are arranged on the surface of one end of the two side plates. Adjusting screws are arranged inside the adjusting blocks. The side plates are connected to the bearing seats through the adjusting screws. The two bearing mounting plates are respectively connected to the other ends of the two side plates.

[0012] Further, bearing bodies are sleeved on both ends of the driving shaft and both ends of the driven shaft. The driving shaft and the driven shaft are respectively arranged between the two bearing seats and between the bearing mounting plates through the bearing bodies.

[0013] Further, a sensor sheet metal is arranged on the top surface of the bearing mounting plate. Photoelectric brackets are symmetrically arranged on both sides of the mounting frame. Photoelectric sensors are arranged at the top ends of the sensor sheet metal and the photoelectric brackets. The photoelectric sensors are used to detect the position of the battery cells.

[0014] Further, transmission wheels are sleeved on one end of the driven shaft and one end of the driving shaft. The synchronous belt is wound around the driven shaft and the driving shaft through the transmission wheels.

[0015] Further, the driving assembly includes a clamping seat and a motor. The motor is arranged on one side surface of the clamping seat. The other side surface of the clamping seat is connected to the mounting frame. A coupling is arranged on the driving end of the motor. The driving shaft is connected to the driving end of the motor through the coupling.

[0016] Further, the clamping seat is composed of two mirror-image arranged connecting plates.

[0017] Further, the adjusting screw is an M8 screw.

[0018] Further, two through grooves for vertically adjusting the sensor sheet metal are opened on the surface of the sensor sheet metal. Two adjusting grooves for adjusting the distance between the side plate and the baffle are opened on the surface of the bearing seat.

[0019] The beneficial effects of the present utility model are as follows:

[0020] The present utility model provides a conveying mechanism for the hot pressing station of a lithium thermal press. The driving member drives the power shaft, and at the same time drives the driven shaft to rotate through a synchronous belt, thereby realizing the forward or reverse movement of the conveying flat belt. Since the hot pressed battery core needs to be pressurized and heated up and down, both ends of the conveying belt are connected by winding around the power shaft and the driven shaft, which is a single-layer circulation design. Under the above structure, a stepping motor and a high-temperature and anti-static conveying belt are used for conveying, effectively solving the problem of damage to the battery core during the processes of sucking, clamping, pressing and transporting the battery core, and improving the production precision; the docking precision of the conveying battery core with the four-layer ground rail manipulator for loading and unloading is lower than that of the method of clamping the battery core, with lower debugging requirements and lower failure rates. Description of the Drawings

[0021] Figure 1 is the front view of the conveying mechanism for the hot pressing station of the lithium thermal press of the present utility model;

[0022] Figure 2 is the structural schematic diagram of the conveying mechanism for the hot pressing station of the lithium thermal press of the present utility model;

[0023] Figure 3 is the structural schematic diagram of the conveying mechanism for the hot pressing station of the lithium thermal press of the present utility model from another angle;

[0024] Figure 4 is the structural schematic diagram of the driving component of the conveying mechanism for the hot pressing station of the lithium thermal press of the present utility model;

[0025] Figure 5 is the structural schematic diagram of the mounting frame of the conveying mechanism for the hot pressing station of the lithium thermal press of the present utility model;

[0026] Figure 6 is the structural schematic diagram of the mounting frame of the conveying mechanism for the hot pressing station of the lithium thermal press of the present utility model from another angle;

[0027] Figure 7 is the structural schematic diagram of the conveying component of the conveying mechanism for the hot pressing station of the lithium thermal press of the present utility model;

[0028] Figure 8 is the structural schematic diagram of the conveying component of the conveying mechanism for the hot pressing station of the lithium thermal press of the present utility model from another angle;

[0029] In the figure: 1 - driving component, 101 - motor, 102 - coupling, 103 - card seat, 2 - mounting frame, 201 - baffle, 202 - side plate, 203 - bearing seat, 204 - adjusting block, 205 - bearing mounting plate, 206 - bearing body, 207 - adjusting screw, 3 - conveying component, 301 - driven shaft, 302 - power shaft, 303 - conveying belt, 304 - synchronous belt, 305 - transmission wheel, 4 - photoelectric bracket, 5 - inductor sheet metal, 6 - photoelectric inductor, 7 - battery core. Specific Embodiments

[0030] For the convenience of those skilled in the art to understand, the following further describes the present utility model in conjunction with embodiments and drawings. The content mentioned in the embodiments does not limit the present utility model. The following describes the present utility model in detail with reference to the drawings.

[0031] Please refer to Figures 1-8 , the conveying mechanism of the hot pressing station of the lithium thermal press in its specific implementation includes:

[0032] A mounting frame 2, a driving assembly 1, and a conveying assembly 3;

[0033] The driving assembly 1 is arranged on the side of one end of the mounting frame 2;

[0034] The conveying assembly 3 is arranged in the mounting frame 2 and is used for placing the battery cell 7. The conveying assembly 3 includes a conveying belt 303, a synchronous belt 304, a driven shaft 301, and a power shaft 302. The driven shaft 301 and the power shaft 302 are respectively rotatably arranged at both ends in the mounting frame 2. The synchronous belt 304 is wound around the driven shaft 301 and the power shaft 302. One end of the power shaft 302 is drivingly connected to the driving assembly 1. The two ends of the conveying belt 303 are respectively wound and connected through the driven shaft 301 and the power shaft 302. And the conveying belt 303 between the driven shaft 301 and the power shaft 302 has a tendency to be tightened due to the winding of the driven shaft 301 and the power shaft 302. By driving the power shaft 302 through the driving assembly 1, the synchronous belt 304 is further driven to drive the driven shaft 301, so that the top surface of the conveying belt 303 is translated.

[0035] By driving the power shaft 302 through a driving member and simultaneously driving the driven shaft 301 to rotate through the synchronous belt 304, the forward or reverse movement of the conveying flat belt is realized. Since the hot pressed battery cell 7 needs to be pressurized and heated up and down, the two ends of the conveying belt 303 are connected by winding around the power shaft 302 and the driven shaft 301, which is a single-layer circulation design. Under the above structure, a stepping motor 101 and a high-temperature and anti-static conveying belt 303 are used for conveying, effectively solving the problem of damage to the battery cell 7 during the processes of sucking, clamping, and pressing and transporting the battery cell 7, and improving the production precision; the docking precision of transporting the battery cell 7 to dock with the four-layer ground rail manipulator for loading and unloading is lower than that of the method of clamping the battery cell 7, with lower debugging requirements and lower failure rates.

[0036] The mounting bracket 2 includes a baffle 201, two side plates 202, two bearing seats 203 and two bearing mounting plates 205. The two bearing seats 203 are respectively arranged on the two side surfaces of the baffle 201. One end surface of the two side plates 202 is provided with an adjusting block 204. An adjusting screw 207 is arranged inside the adjusting block 204. The adjusting screw 207 is an M8 screw. The side plate 202 is connected to the bearing seat 203 through the adjusting screw 207. The two bearing mounting plates 205 are respectively connected to the other ends of the two side plates 202.

[0037] Bearing bodies 206 are sleeved on both ends of the power shaft 302 and both ends of the driven shaft 301. The power shaft 302 and the driven shaft 301 are respectively arranged between the two bearing seats 203 and between the bearing mounting plates 205 through the bearing bodies 206. The arrangement of the bearing bodies 206 helps to reduce the friction between the power shaft 302 and the driven shaft 301, so as to make the mechanism run better and increase the service life of the mechanism.

[0038] An inductor sheet metal 5 is arranged on the top surface of the bearing mounting plate 205. Photoelectric brackets 4 are symmetrically arranged on both sides of the mounting bracket 2. Photoelectric sensors 6 are arranged at the tops of the inductor sheet metal 5 and the photoelectric brackets 4. The photoelectric sensors 6 are used to detect the position of the battery cell 7.

[0039] Drive wheels 305 are sleeved on one end of the driven shaft 301 and one end of the power shaft 302. Key grooves are provided on both the driven shaft 301 and the power shaft 302. Key blocks are arranged in the key grooves. The drive wheels 305 are respectively sleeved on the driven shaft 301 and the power shaft 302 through the key blocks. The synchronous belt 304 is wound around the driven shaft 301 and the power shaft 302 through the drive wheels 305.

[0040] The drive assembly 1 includes a card seat 103 and a motor 101. The card seat 103 is composed of two mirror-image connecting plates. The motor 101 is arranged on one side surface of the card seat 103. The other side surface of the card seat 103 is connected to the mounting bracket 2. A coupling 102 is arranged on the drive end of the motor 101. The power shaft 302 is connected to the drive end of the motor 101 through the coupling 102.

[0041] Two through grooves for vertically adjusting the inductor sheet metal 5 are provided on the surface of the inductor sheet metal 5. Screws are arranged on the surface of the side plate 202. The inductor sheet metal 5 is installed on the side plate 202 through the through grooves and the screws. Two adjusting grooves for adjusting the distance between the side plate 202 and the baffle 201 are provided on the surface of the bearing seat 203. Limit screws are arranged in the adjusting grooves. The limit screws are installed on the surface of the side plate 202.

[0042] The above description is only a preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Although the present utility model is disclosed above in a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art, without departing from the scope of the technical solution of the present utility model, when making some changes or modifications using the above-disclosed technical content into equivalent embodiments of equivalent changes, but as long as it does not depart from the content of the technical solution of the present utility model, any simple modification, equivalent change and modification made to the above embodiments according to the technology of the present utility model all fall within the scope of the technical solution of the present utility model.

Claims

1. The conveying mechanism for the hot pressing station of a lithium electrothermal press, characterized in that, Comprising: Mounting bracket; Drive assembly, arranged on the side surface of one end of the mounting bracket; Conveyor assembly, arranged inside the mounting bracket and used for placing battery cells. The conveyor assembly includes a conveyor belt, a synchronous belt, a driven shaft and a driving shaft. The driven shaft and the driving shaft are respectively rotatably arranged at both ends inside the mounting bracket. The synchronous belt is wound around the driven shaft and the driving shaft. One end of the driving shaft is drivingly connected to the drive assembly. Both ends of the conveyor belt are respectively wound and connected to the driven shaft and the driving shaft. And the conveyor belt located between the driven shaft and the driving shaft has a tendency to be tightened due to the winding of the driven shaft and the driving shaft. By driving the driving shaft through the drive assembly, the synchronous belt drives the driven shaft, so that the top surface of the conveyor belt moves horizontally.

2. The conveying mechanism for the hot pressing station of the lithium electrothermal press according to claim 1, wherein: The mounting bracket includes a baffle, two side plates, two bearing seats and two bearing mounting plates. The two bearing seats are respectively arranged on both side surfaces of the baffle. Adjusting blocks are arranged on the surface of one end of the two side plates. Adjusting screws are arranged inside the adjusting blocks. The side plates are connected to the bearing seats through the adjusting screws. The two bearing mounting plates are respectively connected to the other ends of the two side plates.

3. The conveying mechanism for the hot pressing station of the lithium thermal press according to claim 2, characterized in that: Bearing bodies are sleeved on both ends of the driving shaft and both ends of the driven shaft. The driving shaft and the driven shaft are respectively arranged between the two bearing seats and between the bearing mounting plates through the bearing bodies.

4. The conveying mechanism for the hot pressing station of the lithium electric hot press according to claim 2, characterized in that: An inductor sheet metal is arranged on the top surface of the bearing mounting plate. Photoelectric brackets are symmetrically arranged on both sides of the mounting bracket. Photoelectric sensors are arranged at the tops of the inductor sheet metal and the photoelectric brackets. The photoelectric sensors are used to detect the positions of the battery cells.

5. The conveying mechanism for the hot pressing station of the lithium electric hot press according to claim 1, characterized in that: Drive wheels are sleeved on one end of the driven shaft and one end of the driving shaft. The synchronous belt is wound around the driven shaft and the driving shaft through the drive wheels.

6. The conveying mechanism for the hot pressing station of the lithium thermal press according to claim 1, characterized in that: The drive assembly includes a card seat and a motor. The motor is arranged on one side surface of the card seat. The other side surface of the card seat is connected to the mounting bracket. A coupling is arranged on the driving end of the motor. The driving shaft is connected to the driving end of the motor through the coupling.

7. The conveying mechanism for the hot pressing station of the lithium electric hot press according to claim 6, characterized in that: The card seat is composed of two mirror-image arranged connecting plates.

8. The conveying mechanism for the hot pressing station of the lithium electric hot press according to claim 2, wherein: The adjusting screw is an M8 screw.

9. The conveying mechanism for the hot pressing station of the lithium electric hot press according to claim 4, characterized in that: Two through grooves for vertically adjusting the inductor sheet metal are formed on the surface of the inductor sheet metal. Two adjusting grooves for adjusting the distance between the side plate and the baffle are formed on the surface of the bearing seat.

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