Automatic 180-degree turn-over mechanism for battery diaphragm base material

Abstract

The utility model discloses an automatic 180-degree turn-over mechanism for a battery diaphragm base material, which comprises a fixed frame, an inlet guide roller is transversely mounted at the upper end of the rear side of the fixed frame, and an inlet blowing roller is obliquely mounted on the fixed frame below the inlet guide roller. A first side edge reversing roller is vertically installed at the position, close to the lower end of the inlet blowing roller, of the rear side of the fixed frame, a second side edge reversing roller is vertically installed at the position, close to the first side edge reversing roller, of the front side of the fixed frame, and an outlet blowing roller opposite to the inlet blowing roller in direction is installed on the front side of the fixed frame. The inlet blowing roller and the outlet blowing roller are externally connected with an air source, and a plurality of blowing holes are formed in the surfaces of the inlet blowing roller and the outlet blowing roller. The turnover of the diaphragm is quickly and accurately completed in a non-stop state, the continuous operation capability of a lithium battery diaphragm coating production line is improved, the stop time of equipment is shortened, the production efficiency is improved, and the use cost of the equipment is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery separator coating technology, specifically to an automatic 180° flipping mechanism for battery separator substrate. Background Technology

[0002] In existing lithium-ion battery separator coating processes, separator coating can only be done on side A or both sides A and B. Traditional coating processes require flipping the separator after coating one side to coat the other. Currently, this is generally done manually by stopping the machine, resulting in low production efficiency and difficulty in meeting the demands of large-scale production. Furthermore, manual flipping is susceptible to human error, easily causing uneven separator tension and alignment deviations, affecting coating uniformity and product consistency. Therefore, existing equipment lacks efficient automatic flipping devices, hindering continuous and automated production and restricting the overall technological level of lithium-ion battery separator coating processes. Utility Model Content

[0003] This invention provides an automatic 180° flipping mechanism for battery separator substrates, which solves the technical problem that requires manual flipping during the existing lithium battery separator coating process.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automatic 180° flipping mechanism for battery separator substrates, comprising a fixed frame, an inlet guide roller horizontally mounted on the upper rear side of the fixed frame, an inlet blowing roller obliquely mounted on the fixed frame below the inlet guide roller, a first side reversing roller vertically mounted on the rear side of the fixed frame near the lower end of the inlet blowing roller, a second side reversing roller vertically mounted on the front side of the fixed frame near the first side reversing roller, and a... An outlet air-blowing roller faces in the opposite direction to the inlet air-blowing roller. An outlet guide roller is horizontally installed at the lower front end of the fixed frame. The inlet air-blowing roller and the outlet air-blowing roller are connected to an external air source and have several air-blowing holes on their surfaces. The diaphragm is automatically flipped by passing it sequentially around the inlet guide roller, the inlet air-blowing roller, the first side reversing roller, the second side reversing roller, the outlet air-blowing roller, and the outlet guide roller. The inlet air-blowing roller and the outlet air-blowing roller can change their position and direction without contacting the diaphragm, thus achieving rapid and accurate diaphragm flipping without stopping the machine.

[0005] Preferably, the first side reversing roller and the outlet guide roller are both self-powered rotating arc-shaped flattening rollers. The arc-shaped flattening rollers have a stretching effect, which can keep the surface of the diaphragm flat and wrinkle-free.

[0006] Preferably, a horizontally movable correction bracket is installed on the fixed frame, the outlet air blowing roller is installed on the movable correction bracket, and a linear actuator for driving the movable correction bracket to move is also installed on the fixed frame. The correction of the diaphragm conveying position can be achieved by moving the movable correction bracket and the outlet air blowing roller.

[0007] Preferably, the linear actuator is a telescopic electric cylinder driven by a power motor, which allows for precise and rapid adjustment.

[0008] Preferably, at least one correction sensor is installed at the lower end of the fixed frame. Both the correction sensor and the linear actuator are electrically connected to the PLC control module. The correction sensor can automatically sense the position of the diaphragm and link with the linear actuator to automatically correct the diaphragm.

[0009] Preferably, the angle between the inlet and outlet air-blowing rollers and the horizontal plane is 45°-50°.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] With a compact overall structure, it can be installed on existing coating production lines. It automatically flips the diaphragm by sequentially passing it around the inlet guide roller, inlet air blowing roller, first side reversing roller, second side reversing roller, outlet air blowing roller, and outlet guide roller. The inlet and outlet air blowing rollers can change their position and direction without contacting the diaphragm, enabling the diaphragm to be flipped quickly and accurately without stopping the machine. This improves the continuous operation capability of the lithium battery diaphragm coating production line, reduces equipment downtime, increases production efficiency, and reduces equipment operating costs. Attached Figure Description

[0012] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a second-view perspective three-dimensional structural diagram of the present invention.

[0014] Figure label:

[0015] 1. Diaphragm; 11. Correction sensor; 2. Inlet guide roller; 3. Fixed frame; 4. Movable correction bracket; 5. Inlet air blowing roller; 6. Linear actuator; 7. First side reversing roller; 8. Second side reversing roller; 9. Outlet air blowing roller; 10. Outlet guide roller. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] This utility model addresses the technical problem of requiring manual flipping during existing lithium battery separator coating processes. The following technical solution is provided: Figure 1-2 As shown, an automatic 180° flipping mechanism for battery separator substrate includes a fixed frame 3. An inlet guide roller 2 is horizontally mounted on the upper rear side of the fixed frame 3. An inlet air blowing roller 5 is obliquely mounted on the fixed frame 3 below the inlet guide roller 2. A first side reversing roller 7 is vertically mounted on the rear side of the fixed frame 3 near the lower end of the inlet air blowing roller 5. A second side reversing roller 8 is vertically mounted on the front side of the fixed frame 3 near the first side reversing roller 7. A roller facing opposite direction to the inlet air blowing roller 5 is mounted on the front side of the fixed frame 3. The outlet blowing roller 9 and the outlet guide roller 10 are horizontally installed at the lower front side of the fixed frame 3. The inlet blowing roller 5 and the outlet blowing roller 9 are connected to an external air source and have several blowing holes on their surfaces. The diaphragm 1 is automatically flipped by passing it sequentially around the inlet guide roller 2, the inlet blowing roller 5, the first side reversing roller 7, the second side reversing roller 8, the outlet blowing roller 9 and the outlet guide roller 10. The inlet blowing roller 5 and the outlet blowing roller 9 can change their position and direction without contacting the diaphragm 1, so as to realize the rapid and accurate flipping of the diaphragm without stopping the machine.

[0018] Specifically, the flipping mechanism in this embodiment is installed on an existing coating production line. When the diaphragm 1 enters the inlet guide roller 2 from back to front, it drives the inlet guide roller 2 to rotate and changes the direction of the diaphragm 1 from back to front to top to bottom. After passing through the inlet air blowing roller 5 connected to an external working air source, air is blown through the surface air holes to make the diaphragm 1 float in the air without physical contact with the inlet air blowing roller 5, and the position and direction of the diaphragm 1 are changed from the original top to bottom to a horizontal direction from left to right. After passing through the first side reversing roller 7 to flatten the diaphragm 1 and keep the surface of the diaphragm 1 flat and wrinkle-free, the direction of the diaphragm 1 is changed from the original left to right. The lateral direction of the diaphragm 1 changes from back to front; it enters and drives the second side reversing roller 8 to rotate, changing the direction of the diaphragm 1 from back to front to right to left; then it passes through the outlet air blowing roller 9 with an external working air source, blowing air through the surface air holes to make the diaphragm 1 float in the air without physical contact with the outlet air blowing roller 9, changing the position and direction of the diaphragm 1 from right to left to top to bottom; then it passes through the outlet guide roller 10 to flatten the diaphragm 1, keeping the surface of the diaphragm 1 flat and wrinkle-free, and changing the direction of the diaphragm 1 from top to bottom to front to back, achieving a 180° flip of the diaphragm 1. In this embodiment, the first side reversing roller 7 and the outlet guide roller 10 are both arc-shaped flattening rollers. The arc-shaped flattening rollers have a stretching effect, which can keep the surface of the diaphragm 1 flat and wrinkle-free. The angle between the inlet air blowing roller 5 and the outlet air blowing roller 9 and the horizontal plane is 45°-50°.

[0019] In this embodiment, a horizontally movable correction bracket 4 is mounted on the fixed frame 3. The outlet air-blowing roller 9 is mounted on the movable correction bracket 4. A linear actuator 6 for driving the movable correction bracket 4 is also mounted on the fixed frame 3. The movement of the movable correction bracket 4 and the outlet air-blowing roller 9 can correct the conveying position of the diaphragm 1. At least one correction sensor 11 is mounted on the lower end of the fixed frame 3. Both the correction sensor 11 and the linear actuator 6 are electrically connected to the PLC control module. The correction sensor 11 can automatically sense the position of the diaphragm 1 and link with the linear actuator 6 to automatically correct the diaphragm 1. The movable correction bracket 4 can be square or rectangular and is located on the front side of the fixed frame 3, connected to the fixed frame 3 by a slide rail or guide groove. The linear actuator 6 can be horizontally mounted in the middle of the movable correction bracket 4 for smooth driving. The linear actuator 6 is a telescopic electric cylinder driven by a power motor, which allows for precise and rapid adjustment.

[0020] Specifically, the correction sensor 11 records the current position of the diaphragm 1 and sends it to the PLC control module for processing. The PLC control module sets the position and compares it with the position of the diaphragm 1 fed back by the correction sensor 11. If the two data are different, the PLC control module will send a correction command to the linear actuator 6. After receiving the command, the linear actuator 6 rotates and extends to move the correction bracket 4 and the outlet air roller 9. The position of the correction bracket 4 and the outlet air roller 9 is changed and the position of the diaphragm 1 is changed to the system target set value to complete the correction of the diaphragm 1 and leave the flipping frame.

[0021] If the feedback data from the correction sensor 11 is consistent with the settings of the PLC control module, then there is no need to send instructions to the linear actuator 6.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, in this utility model, descriptions involving terms such as "primary," "secondary," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "primary" or "secondary" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.

[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. An automatic 180° flipping mechanism for a battery separator substrate, characterized in that, The system includes a fixed frame (3), an inlet guide roller (2) is horizontally mounted on the upper rear side of the fixed frame (3), an inlet blowing roller (5) is obliquely mounted on the fixed frame (3) below the inlet guide roller (2), a first side reversing roller (7) is vertically mounted on the rear side of the fixed frame (3) near the lower end of the inlet blowing roller (5), a second side reversing roller (8) is vertically mounted on the front side of the fixed frame (3) near the first side reversing roller (7), an outlet blowing roller (9) facing the opposite direction to the inlet blowing roller (5) is mounted on the front side of the fixed frame (3), an outlet guide roller (10) is horizontally mounted on the lower front side of the fixed frame (3), and the inlet blowing roller (5) and the outlet blowing roller (9) are connected to an external air source and have several blowing holes on their surfaces.

2. The automatic 180° flipping mechanism for battery separator substrate according to claim 1, characterized in that: The first side reversing roller (7) and the outlet guide roller (10) are both self-powered rotating arc-shaped flattening rollers.

3. The automatic 180° flipping mechanism for battery separator substrate according to claim 2, characterized in that: The fixed frame (3) is equipped with a horizontally movable correction bracket (4), the outlet blowing roller (9) is mounted on the movable correction bracket (4), and the fixed frame (3) is also equipped with a linear actuator (6) for driving the movable correction bracket (4) to move.

4. The automatic 180° flipping mechanism for the battery separator substrate according to claim 3, characterized in that: The linear actuator (6) is a telescopic electric cylinder driven by a power motor.

5. The automatic 180° flipping mechanism for battery separator substrate according to claim 3, characterized in that: At least one correction sensor (11) is installed at the lower end of the fixed frame (3). The correction sensor (11) and the linear actuator (6) are both electrically connected to the PLC control module.

6. The automatic 180° flipping mechanism for battery separator substrate according to claim 1, characterized in that: The angle between the inlet blowing roller (5) and the outlet blowing roller (9) and the horizontal plane is 45°-50°.

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