Coating equipment for lithium battery production

Abstract

The invention discloses coating equipment for lithium battery production, and relates to the field of lithium battery production equipment.The coating equipment comprises a cloth feeding mechanism, a cloth collecting mechanism, a coating mechanism and a drying mechanism arranged between the cloth feeding mechanism and the cloth collecting mechanism; a first power component used for driving the rotating shaft to rotate is arranged on the support, a plurality of winding components are installed on the rotating shaft, each winding component comprises an installation frame, a winding roller is rotationally connected to the installation frame and detachably connected with the installation frame, and a second power component used for driving the winding roller to rotate is arranged on the installation frame; a locking part and a cutting part are mounted on the winding roller; according to the winding device, the multiple winding rollers are arranged, meanwhile, the positions of the winding rollers are adjusted through the rotating shafts, the coiled materials are fixed to the winding rollers through the locking parts, the positions of the ends of the coiled materials are adjusted through the lifting mechanism after the coiled materials are cut off, automatic roller replacement is achieved, automatic connection of the winding rollers and the coiled materials is achieved, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The present application relates to the field of lithium battery production equipment, and particularly to a coating device for lithium battery production. Background Art

[0002] When producing lithium batteries, a coater is required. The coater mainly coats the slurry on the coil and then dries it to make the electrode sheet.

[0003] The current coating equipment mainly includes a cloth feeding mechanism, a cloth winding mechanism, a coating mechanism, and a drying mechanism. Both the cloth feeding mechanism and the cloth winding mechanism are roll structures. That is, the coil to be coated is wound around the cloth feeding mechanism, and the coil is connected to the cloth winding mechanism. Through the winding of the cloth winding mechanism and the unwinding of the cloth feeding mechanism, and the coil passes through the slurry coating of the coating mechanism in sequence, and after the slurry coated on the coil is dried by the drying mechanism, the coil is wound on the cloth winding mechanism.

[0004] In view of the above related technologies, the main component of the current cloth winding mechanism is a winding roll. The coated coil is wound by the winding roll. After the winding roll is loaded enough, the roll needs to be replaced. The current main roll replacement method is to cut the coil first, then use a forklift to remove the wound winding roll, then install a new winding roll, and finally connect the coil and the new winding roll. The whole process is relatively cumbersome, time-consuming and laborious. Summary of the Invention

[0005] In order to facilitate the replacement of the winding roll, the present application provides a coating device for lithium battery production.

[0006] A coating device for lithium battery production provided by the present application adopts the following technical solutions:

[0007] A coating device for lithium battery production includes a cloth feeding mechanism, a cloth winding mechanism, a coating mechanism, and a drying mechanism arranged between the cloth feeding mechanism and the cloth winding mechanism. The coating mechanism is arranged between the cloth feeding mechanism and the drying mechanism. The cloth winding mechanism includes a bracket, a rotating shaft is rotatably connected to the bracket, a first power component for driving the rotating shaft to rotate is arranged on the bracket, a plurality of winding components are installed on the rotating shaft. The winding component includes a mounting frame, a winding roll is rotatably connected to the mounting frame, the winding roll and the mounting frame are detachably connected, and a second power component for driving the winding roll to rotate is arranged on the mounting frame; a locking component is installed on the winding roll, and the locking component is used to lock the coil on the winding roll so that the coil can be wound on the winding roll. A cutting component is arranged on the mounting frame, and the cutting component is used to cut the coil.

[0008] By adopting the above technical solution, during use, the coil material is coated and dried and then wound on the cloth winding mechanism. When the cloth winding mechanism bears enough coil materials, at this time, the power component 1 drives the rotating shaft to rotate, so that the cloth winding mechanism with the coil material wound thereon rotates to a suitable position, and then the coil material is cut by the cutting component, and then the winding roller is removed. At the same time, the end of the cut coil material is locked on another winding roller to be wound with cloth through the locking component; through the arrangement of multiple winding rollers, at the same time, the position of the winding roller is adjusted by using the rotating shaft, and the coil material is fixed on the winding roller by the locking component. During the whole process, while removing the winding roller with sufficient load, the coil material to be wound can be locked on another winding roller to be wound with cloth through the locking component, which saves time and effort and is convenient for replacing the winding roller.

[0009] Optionally, the locking component includes a pressing plate and a motor 1. The pressing plate is rotatably connected to the outside of the winding roller, and the motor 1 is used to drive the pressing plate to rotate, and the pressing plate rotates to press the coil material against the winding roller.

[0010] By adopting the above technical solution, when fixing the coil material on the winding roller, the motor 1 is used to drive the pressing plate to rotate, and the end of the coil material is pressed against the surface of the winding roller, which is convenient for the winding roller to wind the coil material, and is simple and fast.

[0011] Optionally, a relief groove is provided on the winding roller, a cover plate for covering the relief groove is provided in the relief groove, a spring is fixedly connected in the relief groove, the spring is fixedly connected to the cover plate, and when the spring is not deformed, the outer surface of the cover plate is adapted to the outer wall of the winding roller; the pressing plate rotates to press the cover plate into the relief groove.

[0012] By adopting the above technical solution, when the winding roller winds the coil material, since the pressing plate presses the end of the coil material, when the coil material is wound, due to the existence of the pressing plate, it will affect the winding of the coil material and the quality of the coated coil material; and through the setting of the relief groove, when the pressing plate presses the end of the coil material, the pressing plate can push the cover plate into the relief groove, so that the pressing plate enters the relief groove and presses the end of the coil material into the relief groove, so as not to affect the subsequent winding of the coil material.

[0013] Optionally, the winding components are provided in four numbers, and the four winding rollers are equidistantly arranged along the circumferential direction of the rotating shaft. The locking components on two adjacent winding components can lock different positions of the coil material on the winding roller; further comprising a lifting mechanism, the lifting mechanism is arranged between the cloth winding mechanism and the drying mechanism, the lifting mechanism includes a lifting frame, a lifting roller is arranged on the lifting frame, the coil material after passing through the drying mechanism is placed on the lifting roller, the lifting roller can move vertically, and a driving component for driving the lifting roller to move vertically is arranged on the lifting frame, and the lifting roller moves vertically to drive the coil material to move.

[0014] By adopting the above technical solution, during operation, the winding roller located at the upper part of the bracket operates to wind the coated coil material. At the same time, the two pressing plates on the winding roller near the side of the drying mechanism rotate to an appropriate angle, enabling the coil material to move smoothly while preventing the coil material from detaching from the winding roller. After the upper winding roller is loaded enough, the coil material is cut by the cutting component, and then the lifting roller moves upward to move the end of the cut coil material to the winding roller near the side of the drying mechanism. The end of the coil material is pressed tightly by the pressing plate, and then the power component one drives the rotating shaft to rotate, causing the winding roller near the dryer to rotate to an appropriate position, and then the winding operation can start, achieving the purpose of automatic coil change without manual connection between the end of the coil material and the winding roller.

[0015] Optionally, the driving assembly includes a second motor and a roller. The roller is rotatably connected to the lifting frame. The second motor is used to drive the roller to rotate. A pulling rope is wound and fixedly connected to the roller, and the pulling rope is fixedly connected to the lifting roller.

[0016] By adopting the above technical solution, when driving the lifting roller to move, the second motor is turned on to drive the roller to rotate, wind the pulling rope, and then drive the lifting roller to move vertically.

[0017] Optionally, the cutting component includes a vertical frame, a cutting knife, and a cylinder. The vertical frame is fixedly connected to the bracket. The cutting knife is arranged on the vertical frame and can move vertically. The cylinder is used to drive the cutting knife to move vertically; a cutting table is fixedly connected to the mounting frame. The cutting table and the cutting knife are in a matching position, and the coil material can be located between the cutting table and the cutting knife.

[0018] By adopting the above technical solution, when the coil material is wound, the coil material is arranged between the cutting table and the cutting knife. When the coil material needs to be cut, the cylinder is used to drive the cutting knife to move, and the coil material can be cut.

[0019] Optionally, the mounting frame includes two fixing frames. A sliding frame is slidably connected to the fixing frame. Fixed shafts are coaxially and fixedly connected to both ends of the winding roller. A connecting cylinder is rotatably connected to the sliding frame. The two sliding frames approach each other so that the connecting cylinder sleeves the fixed shaft, and the fixed shaft and the connecting cylinder are key-connected; a driving member for driving the sliding frame to move is provided on the fixing frame; the cutting table includes two cutting plates, and the two cutting plates are respectively fixedly connected to the two sliding frames.

[0020] By adopting the above technical solution, when it is necessary to remove the winding roller with sufficient load, the driving member is used to drive the two sliding frames to move away from each other; this method of removing the roller does not affect the operation of the cutting component, and at the same time is simple and convenient, facilitating the removal of the roller by a forklift.

[0021] In summary, the present application includes the following beneficial technical effects:

[0022] 1. The present application provides multiple winding rollers, uses a rotating shaft to adjust the position of the winding rollers, and uses a locking component to fix the coil on the winding rollers. After the coil is cut, the position of the end of the coil is adjusted by a lifting mechanism, so as to realize automatic roller replacement and automatic connection between the winding roller and the coil, which is convenient and fast.

[0023] 2. The present application sets a clearance groove. When the pressure plate presses the end of the coil, the pressure plate can push the cover plate into the clearance groove, so that the pressure plate enters the clearance groove and presses the end of the coil into the clearance groove, thereby not affecting the subsequent winding of the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of a coating device for lithium battery production disclosed in the present application;

[0025] Figure 2 It is a schematic diagram of the overall structure of a cloth collecting mechanism in a coating device for lithium battery production disclosed in the present application;

[0026] Figure 3 yes Figure 2 Schematic diagram of the local structure;

[0027] Figure 4 yes Figure 3 A partial structural cross-sectional view;

[0028] Figure 5 It is a schematic diagram of the overall structure of a lifting mechanism in a coating device for lithium battery production disclosed in the present application.

[0029] Description of reference numerals:

[0030] 1. cloth feeding mechanism; 2. coating mechanism; 3. drying mechanism; 4. cloth collecting mechanism; 5. bracket; 6. rotating shaft; 7. motor three; 8. mounting frame; 9. winding roller; 10. fixed frame; 11. sliding frame; 12. hydraulic cylinder; 13. connecting tube; 14. fixed shaft; 15. motor four; 16. pressing plate; 17. motor one; 18. mounting seat; 19. giving way groove; 20. spring; 21. cover plate; 22. lifting frame; 23. lifting roller; 24. slide plate; 25. slide groove; 26. connecting plate; 27. motor two; 28. rotating roller; 29. ​​pull rope; 30. stand; 31. cutter; 32. cylinder; 33. cutting plate; 34. lifting mechanism. DETAILED DESCRIPTION

[0031] The following is combined with Figures 1-5 This application is described in further detail.

[0032] The present application discloses a coating device for lithium battery production.

[0033] Reference Figure 1, A coating device for lithium battery production, including a fabric feeding mechanism 1, a coating mechanism 2, a drying mechanism 3 and a fabric winding mechanism 4; the coating mechanism 2 is arranged between the drying mechanism 3 and the fabric winding mechanism 4, and the drying mechanism 3 is arranged between the fabric feeding mechanism 1 and the coating mechanism 2;

[0034] The fabric feeding mechanism 1 is used to send the coil to be processed to the fabric winding mechanism 4, the coating mechanism 2 is used to coat the coil, and the drying mechanism 3 is used to dry the coil coated by the coating mechanism 2 and then send it to the fabric winding mechanism 4 for winding.

[0035] In this application, the fabric feeding mechanism 1, the coating mechanism 2 and the drying mechanism 3 are all prior arts and will not be elaborated in this application.

[0036] In order to facilitate automatic roll change in this application, the fabric winding mechanism 4 is improved in this application.

[0037] Refer to Figure 2 and Figure 3 , the fabric winding mechanism 4 includes a bracket 5, a rotating shaft 6 is rotatably connected to the bracket 5, a first power component for driving the rotating shaft 6 to rotate is provided on the bracket 5, and a plurality of winding components are provided on the rotating shaft 6.

[0038] In this embodiment, the first power component includes a motor three 7, the motor three 7 is fixed on the bracket 5, and the motor three 7 drives the rotating shaft 6 to rotate through a gear transmission mechanism.

[0039] In another implementation manner, the motor three 7 can also drive the rotating shaft 6 to rotate through a belt transmission mechanism.

[0040] In this embodiment, the winding components are set to four, and the four winding components are equidistantly arranged along the circumferential direction of the rotating shaft 6. The winding component includes a mounting frame 8 and a winding roller 9. The winding roller 9 is rotatably connected to the mounting frame 8, and the winding roller 9 and the mounting frame 8 are detachably connected. The rotation axis of the winding roller 9 is arranged along the width direction of the coil, and a second power component for driving the winding roller 9 to rotate is provided on the mounting frame 8.

[0041] In order to facilitate the disassembly and assembly of the winding roller 9, the mounting frame 8 includes two fixed frames 10. A sliding frame 11 is slidably connected to the fixed frame 10. Fixed shafts 14 are coaxially and fixedly connected to both ends of the winding roller 9. A connecting cylinder 13 is rotatably connected to the sliding frame 11. The two sliding frames 11 approach each other so that the connecting cylinder 13 sleeved on the fixed shaft 14, and the fixed shaft 14 and the connecting cylinder 13 are key-connected (that is, the rotation of the connecting cylinder 13 drives the rotation of the fixed shaft 14); a driving member for driving the sliding frame 11 to move is provided on the fixed frame 10.

[0042] In this embodiment, the driving member includes a hydraulic cylinder 12. The fixed end of the hydraulic cylinder 12 is fixedly connected to the fixed frame 10, and the telescopic end of the hydraulic cylinder 12 is fixedly connected to the sliding frame 11.

[0043] In another embodiment, the driving member may also drive the motor to cooperate with the screw transmission member to drive the sliding frame 11 to move.

[0044] In this embodiment, the power component 2 includes a motor 4 15, which is fixed on the sliding frame 11. The motor 4 15 drives the connecting tube 13 to rotate through a gear transmission member.

[0045] In another embodiment, the motor 4 15 can also drive the rotating shaft 6 to rotate through a belt transmission mechanism.

[0046] Reference Figure 3 and Figure 4 In this embodiment, a locking component is installed on the fixed shaft 14, wherein the locking components on two adjacent winding components can lock the coil on the winding roller 9 at different positions.

[0047] The locking component includes a pressure plate 16 and a motor 17. A mounting seat 18 is fixedly connected to the fixed shaft 14. The pressure plate 16 is rotatably connected to the mounting seat 18. The motor 17 is fixedly connected to the mounting seat 18. The output shaft of the motor 17 is fixedly connected to the pressure plate 16. The pressure plate 16 rotates to press the coil onto the winding roller 9.

[0048] A battery is installed on the fixed shaft 14, and the power of the motor 17 comes from the battery.

[0049] In this embodiment, in order to facilitate the winding of the coil, a clearance groove 19 is opened on the outer surface of the winding roller 9, and a cover plate 21 for covering the clearance groove 19 is provided in the clearance groove 19. A plurality of springs 20 are fixedly connected in the clearance groove 19, and the springs 20 and the cover plate 21 are fixedly connected. When the springs 20 are not deformed, the outer surface of the cover plate 21 and the outer wall of the winding roller 9 are adapted (that is, the outer surface of the cover plate 21 and the outer surface of the winding roller 9 are on the same circumferential surface); the pressure plate 16 rotates to press the cover plate 21 into the clearance groove 19 (the height of the pressure plate 16 can be adjusted so that the outer surface of the pressure plate 16 and the outer surface of the winding roller 9 are adapted when the end of the coil is pressed into the clearance groove 19).

[0050] In another embodiment, the locking component may also be an electromagnet, that is, an electromagnet is installed in the clearance groove 19 and its outer surface is adapted to the outer surface of the winding roller 9, so that the end of the coil is locked on the winding roller 9 by electromagnetic adsorption.

[0051] Reference Figure 2 and Figure 3In this embodiment, a cutting component is provided on the mounting frame 8, and the cutting component is used to cut the coiled material. The cutting component includes a stand 30, a cutter 31 and a cylinder 32. The stand 30 is fixedly connected to the bracket 5, and the cutter 31 is arranged on the stand 30 and can move in the vertical direction. The cylinder 32 is used to drive the cutter 31 to move vertically; a cutting table is fixedly connected to the mounting frame 8, and the cutting table includes two cutting plates 33. The two cutting plates 33 are respectively fixedly connected to the two sliding frames 11. The positions of the cutting table and the cutter 31 are adapted, and the coiled material can be located between the cutting table and the cutter 31.

[0052] Reference Figure 5 In this embodiment, the coating device also includes a lifting mechanism 34, which is arranged between the drying mechanism 3 and the cloth collecting mechanism 4. The lifting mechanism 34 includes a lifting frame 22, and a lifting roller 23 is arranged on the lifting frame 22. The coiled material after passing through the drying mechanism 3 is placed on the lifting roller 23, and the lifting roller 23 can move vertically. The lifting frame 22 is provided with a driving component for driving the lifting roller 23 to move vertically, and the lifting roller 23 moves vertically to drive the coiled material to move.

[0053] In order to ensure that the lifting roller 23 can move vertically stably, slide plates 24 are fixedly connected to both sides of the lifting roller 23 , and a slide groove 25 for the slide plate 24 to slide is opened on the side wall of the lifting frame 22 , and the slide plate 24 is inserted into the slide groove 25 .

[0054] In addition, two lifting rollers 23 are provided, and ends of the two lifting rollers 23 close to each other are fixedly connected to a connecting plate 26 , and the slide plate 24 is fixed on the connecting plate 26 .

[0055] In this embodiment, the driving assembly includes a motor 27 and a roller 28. The roller 28 is rotatably connected to the lifting frame 22. The motor 27 is used to drive the roller 28 to rotate. A pull rope 29 is wound and fixedly connected to the roller 28. The pull rope 29 is fixedly connected to the lifting roller 23.

[0056] In another embodiment, the driving assembly may also adopt a cylinder 32 .

[0057] The present application discloses a coating device for lithium battery production, and the implementation principle is as follows: during installation, the end of the coil is installed on the winding roller 9 located at the top, during installation, the end of the coil is pressed into the clearance groove 19 by rotating the pressing plate 16, and then the position of the coil is adjusted by the lifting mechanism 34, so that the coil is close to the winding roller 9 close to the lifting mechanism 34, and the locking mechanism on the winding roller 9 is used to position the coil, and the angle of the pressing plate 16 is adjusted to limit the coil from leaving the winding roller 9 and ensure that the coil can move;

[0058] Then, the winding roller 9 at the uppermost side starts to wind the coated coil. After the winding is completed, when it is necessary to replace the winding roller 9, the coil is cut by the cutting component. Then, the driving component is used to drive the lifting roller 23 to move, so that the end of the cut coil is separated from the winding roller 9 on the upper side until the end of the coil moves to the position of the pressing plate 16 on the winding roller 9 near the drying mechanism 3. Then, by rotating the pressing plate 16, the cut end is locked. Then, by rotating the rotating shaft 6, the winding component is driven to rotate, so that the winding roller 9 near the drying mechanism 3 rotates to the uppermost side, while the wound winding roller 9 rotates to the side away from the drying mechanism 3. Then, the hydraulic cylinder 12 is used to drive the sliding frame 11 to slide, and at the same time, a forklift is used to remove the winding roller 9.

[0059] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A coating device for lithium battery production, comprising a fabric feeding mechanism (1), a fabric collecting mechanism (4), a coating mechanism (2), and a drying mechanism (3) arranged between the fabric feeding mechanism (1) and the fabric collecting mechanism (4), wherein the coating mechanism (2) is arranged between the fabric feeding mechanism (1) and the drying mechanism (3), and is characterized in that: The cloth winding mechanism (4) includes a bracket (5). A rotating shaft (6) is rotatably connected to the bracket (5). The bracket (5) is provided with a first power component for driving the rotation of the rotating shaft (6). A plurality of winding components are installed on the rotating shaft (6). The winding component includes a mounting frame (8). A winding roller (9) is rotatably connected to the mounting frame (8). The winding roller (9) and the mounting frame (8) are detachably connected. The mounting frame (8) is provided with a second power component for driving the rotation of the winding roller (9). A locking component is installed on the winding roller (9). The locking component is used to lock the coil material on the winding roller (9) so that the coil material can be wound on the winding roller (9). A cutting component is provided on the mounting frame (8). The cutting component is used to cut the coil material.

2. The coating equipment for lithium battery production according to claim 1, characterized in that: The locking component includes a pressing plate (16) and a first motor (17). The pressing plate (16) is rotatably connected to the outside of the winding roller (9). The first motor (17) is used to drive the rotation of the pressing plate (16). The pressing plate (16) rotates to press the coil material against the winding roller (9).

3. A coating device for lithium battery production according to claim 2, characterized in that: A relief groove (19) is formed on the winding roller (9). A cover plate (21) for covering the relief groove (19) is arranged in the relief groove (19). A spring (20) is fixedly connected in the relief groove (19). The spring (20) and the cover plate (21) are fixedly connected. When the spring (20) is not deformed, the outer surface of the cover plate (21) is adapted to the outer wall of the winding roller (9). The pressing plate (16) rotates to press the cover plate (21) into the relief groove (19).

4. A coating device for lithium battery production according to claim 1, characterized in that: Four winding components are provided. The four winding rollers (9) are equidistantly arranged along the circumferential direction of the rotating shaft (6). The locking components on two adjacent winding components can lock different positions of the coil material on the winding roller (9). It further includes a lifting mechanism (34). The lifting mechanism (34) is arranged between the cloth winding mechanism (4) and the drying mechanism (3). The lifting mechanism (34) includes a lifting frame (22). A lifting roller (23) is arranged on the lifting frame (22). The coil material after passing through the drying mechanism (3) is laid on the lifting roller (23). The lifting roller (23) can move vertically. The lifting frame (22) is provided with a driving assembly for driving the vertical movement of the lifting roller (23). The lifting roller (23) moves vertically to drive the movement of the coil material.

5. The coating device for lithium battery production according to claim 4, characterized in that: The driving assembly includes a second motor (27) and a rotating roller (28). The rotating roller (28) is rotatably connected to the lifting frame (22). The second motor (27) is used to drive the rotation of the rotating roller (28). A pulling rope (29) is wound and fixedly connected to the rotating roller (28). The pulling rope (29) and the lifting roller (23) are fixedly connected.

6. The coating equipment for lithium battery production according to claim 1, characterized in that: The cutting component includes a vertical frame (30), a cutting knife (31) and a cylinder (32). The vertical frame (30) is fixedly connected to the support (5). The cutting knife (31) is arranged on the vertical frame (30) and can move in the vertical direction. The cylinder (32) is used to drive the cutting knife (31) to move vertically. A cutting table is fixedly connected to the mounting frame (8). The cutting table and the cutting knife (31) are positionally adapted, and the coil material can be located between the cutting table and the cutting knife (31).

7. A coating device for lithium battery production according to claim 6, characterized in that: The mounting frame (8) includes two fixed frames (10). A sliding frame (11) is slidably connected to the fixed frame (10). Fixed shafts (14) are coaxially and fixedly connected to both ends of the winding roller (9). A connecting cylinder (13) is rotatably connected to the sliding frame (11). The two sliding frames (11) approach each other so that the connecting cylinder (13) sleevingly engages the fixed shaft (14), and the fixed shaft (14) and the connecting cylinder (13) are key-connected. A driving member for driving the sliding frame (11) to move is provided on the fixed frame (10). The cutting table includes two cutting plates (33), and the two cutting plates (33) are respectively fixedly connected to the two sliding frames (11).

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