Coating edge thickness reduction device

Abstract

The utility model discloses a coating edge thickness reduction device which comprises a supporting frame, a supporting roller, a first adjusting mechanism, a second adjusting mechanism and a material scraping piece, a dismounting mechanism is arranged between the material scraping piece and the second adjusting mechanism, the dismounting mechanism comprises a fixed inserting shell, two sliding pieces, an inserting piece and a connecting piece, and the connecting piece is connected with the fixed inserting shell. The number of the plug connectors is four, the two sliding pieces are installed on the two sides of the fixed plug shell in a sliding mode respectively, and the four plug connectors are fixedly installed on one sides of the two sliding pieces respectively. According to the coating edge thickness reduction device provided by the utility model, through the arrangement of the dismounting and mounting mechanism, when scraping pieces with different inclination angles need to be replaced, the sliding piece can be pulled to drive the inserting piece to move so as to remove the fixation of the connecting piece, so that a worker can conveniently replace the scraping pieces with different inclination angles according to different requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of coating, and particularly relates to a device for thinning the edge thickness of coating. Background Art

[0002] In the industrial production of lithium batteries, die extrusion coating has become the most widely used coating method due to its advantages such as high precision, wide coating window, and high reliability. As shown in Figure 1 , the slurry is provided by an accurate feeding system (such as a screw pump), enters the internal cavity of the die head, is evenly distributed in the coating width direction, and finally the slurry is extruded through the die head slit to form a coating on the moving substrate. Due to the fluid characteristics of the slurry, a half-moon shape is likely to form at the starting point, ending point, and both edges of the coating. In the coating process, this morphology of sudden thickness increase at the edge of the electrode is called the "thick edge" phenomenon;

[0003] This half-moon shape feature will seriously affect the uniformity of the coating. Generally, the edge thickness of the coating is several to more than ten micrometers thicker than the normal area. When the coating is dried and wound up, hundreds of layers of electrodes are wound into one roll, and the thickness protrusion line at the side edge of the coating accumulates to several millimeters, resulting in the drum edge phenomenon of the electrode roll. In severe cases, the electrode may break, which seriously affects the winding neatness of the coating and its subsequent processes. The thick edge at the edge of the coating area causes uneven distribution of the coating positive / negative electrode slurry surface density in this area, affecting the consistency of lithium-ion batteries, and even causing lithium deposition on the negative electrode, resulting in battery cycle and safety problems, and reducing the excellent rate of the battery;

[0004] Regarding the thick edge at the edge of the coating area, most of them are to thin the edge of the coating area by a scraping member before the coating area is dried. However, due to different production requirements in the coating area, the degree of thick edge protrusion at the edge of the coating area will also be different. Most of the existing scraping members are fixedly installed on the bracket, and it is impossible to replace the scraping members with different inclination angles according to different requirements, and it is not convenient to quickly adjust the position of the scraping member according to different production requirements in the coating area. Therefore, it is urgent to design a device for thinning the edge thickness of coating to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a device for thinning the edge thickness of coating to solve the above deficiencies in the prior art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] It includes a support frame, a support roller, a first adjustment mechanism, a second adjustment mechanism, and a scraping member;

[0008] The scraping member is at least used to scrape and flatten the edge of the coating layer;

[0009] The top end of the scraping member is provided with a disassembly and assembly mechanism, and the disassembly and assembly mechanism is at least used for installing and disassembling the scraping member;

[0010] The disassembly and assembly mechanism is arranged at the lower end of the second adjustment mechanism, and the second adjustment mechanism is at least used for horizontally adjusting the disassembly and assembly mechanism and the scraping member;

[0011] The second adjustment mechanism is arranged on the upper side of the first adjustment mechanism, and the first adjustment mechanism is at least used for vertically adjusting the second adjustment mechanism;

[0012] The support roller is arranged between the support frames, and the support roller is at least used for supporting the coating.

[0013] The disassembly and assembly mechanism includes a fixed insertion shell, a sliding member, a plug-in member and a connecting member. The sliding members are arranged on both sides of the fixed insertion shell. The plug-in member is arranged on one side of the sliding member. The plug-in member is at least used for fixing and limiting the connecting member. The connecting member is movably inserted into the fixed insertion shell. The connecting member is at least used for installing the scraping member on one side of the fixed insertion shell. Slots are arranged on both sides of the fixed insertion shell and the connecting member. The plug-in member is movably inserted into the corresponding slots. One end of the scraping member is arranged on one side of the connecting member.

[0014] Fixing plates are fixedly installed on both sides of the fixed insertion shell. The fixing plates are located between the two sliding members. Installation grooves are formed at both ends of the sliding members. Springs are arranged between the fixing plates and the installation grooves.

[0015] The second adjustment mechanism includes an adjustment rod, a sliding bracket, a threaded cylinder and a threaded extrusion rod. The sliding bracket is slidably installed on the periphery of the adjustment rod. The threaded cylinder is arranged on the upper side of the sliding bracket. The threaded extrusion rod is threadedly installed on the upper side of the threaded cylinder. One end of the threaded extrusion rod corresponds to the adjustment rod.

[0016] The fixed insertion shell is fixedly installed on one side of the sliding bracket. A scale is arranged on the upper side of the adjustment rod. The adjustment rod is connected to the first adjustment mechanism.

[0017] The first adjustment mechanism includes a threaded rod, a threaded slider, a guide rod and a guide slider. The number of the support frames is two. Guide grooves are arranged in the two support frames. The threaded rod is rotatably installed in one of the guide grooves. The guide rod is fixedly installed in the other guide groove. The threaded slider is threadedly installed on the periphery of the threaded rod. The guide slider is slidably installed on the periphery of the guide rod. One side of the inner walls of the two guide grooves is provided with a chute. The guide slider and the threaded slider are both connected to the adjustment rod through the chute.

[0018] In the above technical solution, a coating edge thickness reduction device provided by the present utility model has the following beneficial effects:

[0019] (1) For the coating edge thickness reduction device provided by the present utility model, through the provided disassembly and assembly mechanism, when it is necessary to replace the scraping member with different inclination angles, the fixing of the connecting member can be released by pulling the sliding member to drive the insertion member to move, so as to facilitate the staff to replace the scraping member with different inclination angles according to different requirements.

[0020] (2) For the coating edge thickness reduction device provided by the present utility model, through the provided first adjustment mechanism, by rotating the threaded rod, the threaded rod can drive the threaded slider and the second adjustment mechanism to move up and down, and the movement of the second adjustment mechanism can drive the scraping member to move up and down, so as to facilitate the staff to adjust the position of the scraping member according to different coating thicknesses.

[0021] (3) For the coating edge thickness reduction device provided by the present utility model, through the provided second adjustment mechanism, by loosening the threaded extrusion rod, and then driving the sliding bracket to move along the adjustment rod, the sliding bracket can drive the scraping member to move horizontally, so as to facilitate the staff to adjust the position of the scraping member according to different coating widths. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure provided by an embodiment of a coating edge thickness reduction device of the present utility model.

[0024] Figure 2 It is a schematic diagram of the structure of the first adjustment mechanism provided by an embodiment of a coating edge thickness reduction device of the present utility model.

[0025] Figure 3 It is a schematic diagram of the structure of the second adjustment mechanism provided by an embodiment of a coating edge thickness reduction device of the present utility model.

[0026] Figure 4 It is a schematic diagram of the exploded structure of the disassembly and assembly mechanism provided by an embodiment of a coating edge thickness reduction device of the present utility model.

[0027] 1. Support frame; 2. Support roller; 3. Electrode sheet; 4. Glue coating area; 5. First adjustment mechanism; 6. Second adjustment mechanism; 7. Disassembly and assembly mechanism; 8. Scraping member; 9. Guide groove; 10. Threaded rod; 11. Threaded slider; 12. Chute; 13. Guide rod; 14. Guide slider; 15. Adjusting rod; 16. Sliding bracket; 17. Threaded cylinder; 18. Threaded extrusion rod; 19. Scale; 20. Fixed insertion housing; 21. Sliding member; 22. Insertion member; 23. Fixed plate; 24. Spring; 25. Slot; 26. Connecting member; 27. Installation groove. Detailed implementation manners

[0028] In order to enable those skilled in the art to better understand the technical solution of the present utility model, the present utility model will be further described in detail below in conjunction with the accompanying drawings.

[0029] As Figures 1-4 shown, a coating edge thickness reduction device provided by an embodiment of the present utility model includes a support frame 1, a support roller 2, a first adjustment mechanism 5, a second adjustment mechanism 6 and a scraping member 8. The scraping member 8 is an elastic scraping plate, and the number of scraping members 8 is two. The scraping member 8 is at least used for scraping the edge of the coating layer flat. An upper end of the scraping member 8 is provided with a disassembly and assembly mechanism 7. The disassembly and assembly mechanism 7 is at least used for installing and disassembling the scraping member 8. The disassembly and assembly mechanism 7 is arranged at a lower end of the second adjustment mechanism 6. The second adjustment mechanism 6 is at least used for horizontally adjusting the disassembly and assembly mechanism 7 and the scraping member 8. The second adjustment mechanism 6 is arranged on an upper side of the first adjustment mechanism 5. The first adjustment mechanism 5 is at least used for vertically adjusting the second adjustment mechanism 6. The support roller 2 is arranged between the support frames 1. The support roller 2 is at least used for supporting the coating. The disassembly and assembly mechanism 7 includes a fixed insertion housing 20, a sliding member 21, an insertion member 22 and a connecting member 26. The sliding member 21 is slidably installed on both sides of the fixed insertion housing 20. The sliding member 21 is a U-shaped sliding plate, and the number of sliding members 21 is two. The insertion member 22 is fixedly installed on one side of the sliding member 21. The insertion member 22 is an insertion post, and the number of insertion members 22 is four. The insertion member 22 is at least used for fixedly limiting the connecting member 26. The connecting member 26 is movably inserted into the fixed insertion housing 20. The connecting member 26 is a rectangular insertion block. The connecting member 26 is at least used for installing the scraping member 8 on one side of the fixed insertion housing 20. Slots 25 are opened on both sides of the fixed insertion housing 20 and the connecting member 26. The insertion member 22 is movably inserted into the corresponding slot 25. One end of the scraping member 8 is fixedly installed on one side of the connecting member 26. Fixed plates 23 are fixedly installed on both sides of the fixed insertion housing 20. The fixed plates 23 are located between the two sliding members 21. Installation grooves 27 are opened at both ends of the sliding member 21. A spring 24 is arranged between the fixed plate 23 and the installation groove 27.

[0030] Specifically, in this embodiment, when it is necessary to replace the scraping member 8 with different inclination angles, by simultaneously pulling the two sliding members 21, the sliding members 21 drive the plug-in member 22 to move outward. The outward movement of the plug-in member 22 can disengage from the slot 25 on the upper side of the connecting member 26, thereby enabling the plug-in member 22 to release the fixation of the connecting member 26. Then, by pulling the scraping member 8 downward, the scraping member 8 drives the connecting member 26 to move downward. When the connecting member 26 disengages from the fixed plug housing 20, the disassembly of the scraping member 8 can be completed. During installation, by inserting the connecting member 26 into the fixed plug housing 20 and aligning the slots 25 on both sides of the connecting member 26 with the slots 25 on both sides of the fixed plug housing 20, and then relaxing the sliding members 21, the sliding members 21 move toward the fixed plug housing 20 through the elasticity of the spring 24. The movement of the sliding members 21 drives the movement of the plug-in member 22, and the movement of the plug-in member 22 inserts into the corresponding slot 25, thereby fixing the connecting member 26, and then the installation of the scraping member 8 can be completed. Among them, the sliding member 21 is slidably connected to the fixed plug housing 20 through a slide rail, which can enable the sliding member 21 to slide stably on the fixed plug housing 20. The elastic scraping plate is made of an elastic material, and the elastic scraping plate is a sheet made of a polymer material, such as being made of materials with good corrosion resistance and wear resistance, such as polyethylene terephthalate, silicone resin, epoxy resin, etc., so that the elastic scraping plate can play a buffering role during the thinning process. Different scraping members 8 can be set with different inclination angles according to actual application requirements.

[0031] A coating edge thickness thinning device provided by the present utility model, the second adjustment mechanism 6 includes an adjustment rod 15, a sliding bracket 16, a threaded cylinder 17, and a threaded extrusion rod 18. The number of the sliding bracket 16, the threaded cylinder 17, and the threaded extrusion rod 18 is two. The sliding bracket 16 is slidably installed on the periphery of the adjustment rod 15. The threaded cylinder 17 is arranged on the upper side of the sliding bracket 16. The threaded extrusion rod 18 is threadedly installed on the upper side of the threaded cylinder 17. One end of the threaded extrusion rod 18 corresponds to the adjustment rod 15. The fixed plug housing 20 is fixedly installed on one side of the sliding bracket 16. A scale 19 is arranged on the upper side of the adjustment rod 15. The adjustment rod 15 is connected to the first adjustment mechanism 5.

[0032] In another embodiment provided by the present utility model, when it is necessary to adjust the distance between the two sliding brackets 16, by rotating the threaded extrusion rod 18, the threaded extrusion rod 18 moves upward along the threaded barrel 17, so that one end of the threaded extrusion rod 18 can release the extrusion on the adjusting rod 15. Then, by pulling the sliding bracket 16, the sliding bracket 16 slides along the adjusting rod 15. The sliding of the sliding bracket 16 can drive the disassembly and assembly mechanism 7 and the scraping member 8 to move. When moving the sliding bracket 16, it can be adjusted to a detailed position according to the scale 19, making the adjustment of the sliding bracket 16 more accurate. Then, when the sliding bracket 16 is adjusted to a suitable position, by rotating the threaded extrusion rod 18 again, one end of the threaded extrusion rod 18 squeezes the adjusting rod 15, so as to fix the sliding bracket 16. Among them, a rubber pad is provided at one end of the threaded extrusion rod 18, which can prevent damage to the adjusting rod 15 and increase the friction between the threaded extrusion rod 18 and the adjusting rod 15.

[0033] A coating edge thickness reduction device provided by the present utility model, the first adjustment mechanism 5 includes a threaded rod 10, a threaded slider 11, a guide rod 13 and a guide slider 14. The number of the support frames 1 is two. Guide grooves 9 are provided in the two support frames 1. The threaded rod 10 is rotatably installed in one of the guide grooves 9, the guide rod 13 is fixedly installed in the other guide groove 9, the threaded slider 11 is threadedly installed on the periphery of the threaded rod 10, the guide slider 14 is slidably installed on the periphery of the guide rod 13, and sliding grooves 12 are opened on one side of the inner walls of the two guide grooves 9. Both the guide slider 14 and the threaded slider 11 are connected to the adjusting rod 15 through the sliding grooves 12.

[0034] In still another embodiment provided by the present utility model, when it is necessary to adjust the height of the scraping member 8, by rotating the threaded rod 10, the threaded rod 10 drives the threaded slider 11 to perform a lifting motion. The lifting motion of the threaded slider 11 can drive the adjusting rod 15 to perform a lifting motion. When the adjusting rod 15 performs a lifting motion, it can drive the guide slider 14 to move up and down along the guide rod 13. Through the guide slider 14 and the guide rod 13, the smoothness and stability of the lifting motion of the adjusting rod 15 can be improved. The lifting motion of the adjusting rod 15 can also drive the sliding bracket 16 and the scraping member 8 to move up and down, so as to adjust the height of the scraping member 8.

[0035] Working principle: Pass the electrode plate 3 through two support frames 1, and make the electrode plate 3 contact with the support rollers 2. Then, when the electrode plate 3 moves, the edge thick edges of the upper glue coating area of the electrode plate 3 can be scraped off by two scraping members 8, so that the edges of the coating area are thinned. Then, when it is necessary to replace the scraping members 8 with different inclination angles, the scraping members 8 can be quickly replaced through the disassembly and assembly mechanism 7. When it is necessary to adjust the distance between the two scraping members 8, the distance between the two scraping members 8 can be quickly adjusted through the second adjustment mechanism 6. When it is necessary to adjust the height of the scraping member 8, the height of the scraping member 8 can be quickly adjusted through the first adjustment mechanism 5.

[0036] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A coating edge thickness reduction device, characterized in that It includes a support frame (1), a support roller (2), a first adjustment mechanism (5), a second adjustment mechanism (6), and a scraping member (8); The scraping member (8) is at least used for scraping and leveling the edge of the coating layer; An assembly and disassembly mechanism (7) is provided at the top of the scraping member (8), and the assembly and disassembly mechanism (7) is at least used for installing and disassembling the scraping member (8); The assembly and disassembly mechanism (7) is provided at the lower end of the second adjustment mechanism (6), and the second adjustment mechanism (6) is at least used for horizontally adjusting the assembly and disassembly mechanism (7) and the scraping member (8); The second adjustment mechanism (6) is provided on the upper side of the first adjustment mechanism (5), and the first adjustment mechanism (5) is at least used for vertically adjusting the second adjustment mechanism (6); The support roller (2) is arranged between the support frames (1), and the support roller (2) is at least used for supporting the coating; 2. The coating edge thickness reduction device according to claim 1, characterized in that, The assembly and disassembly mechanism (7) includes a fixed socket (20), a sliding member (21), a plugging member (22), and a connecting member (26). The sliding member (21) is arranged on both sides of the fixed socket (20). The plugging member (22) is arranged on one side of the sliding member (21). The plugging member (22) is at least used for fixedly limiting the connecting member (26). The connecting member (26) is movably inserted into the fixed socket (20). The connecting member (26) is at least used for installing the scraping member (8) on one side of the fixed socket (20). Slots (25) are provided on both sides of the fixed socket (20) and the connecting member (26). The plugging member (22) is movably inserted into the corresponding slot (25). One end of the scraping member (8) is arranged on one side of the connecting member (26).

3. The coating edge thickness reduction device according to claim 2, wherein Fixing plates (23) are fixedly installed on both sides of the fixed socket (20). The fixing plates (23) are located between the two sliding members (21). Installation grooves (27) are provided at both ends of the sliding member (21). Springs (24) are arranged between the fixing plates (23) and the installation grooves (27).

4. The coating edge thickness reduction device according to claim 2, characterized in that, The second adjustment mechanism (6) includes an adjustment rod (15), a sliding bracket (16), a threaded cylinder (17), and a threaded extrusion rod (18). The sliding bracket (16) is slidably installed on the periphery of the adjustment rod (15). The threaded cylinder (17) is arranged on the upper side of the sliding bracket (16). The threaded extrusion rod (18) is threadedly installed on the upper side of the threaded cylinder (17). One end of the threaded extrusion rod (18) corresponds to the adjustment rod (15).

5. The coating edge thickness reduction device according to claim 4, characterized in that, The fixed socket (20) is fixedly installed on one side of the sliding bracket (16). A scale (19) is provided on the upper side of the adjustment rod (15). The adjustment rod (15) is connected to the first adjustment mechanism (5).

6. The coating edge thickness thinning device according to claim 5, characterized in that, The first adjusting mechanism (5) includes a threaded rod (10), a threaded slider (11), a guide rod (13) and a guide slider (14). There are two support frames (1). A guide groove (9) is provided in the two support frames (1). The threaded rod (10) is rotatably installed in one of the guide grooves (9), and the guide rod (13) is fixedly installed in the other guide groove (9). The threaded slider (11) is threadedly installed on the periphery of the threaded rod (10), and the guide slider (14) is slidably installed on the periphery of the guide rod (13). A chute (12) is formed on one side of the inner wall of each of the two guide grooves (9). The guide slider (14) and the threaded slider (11) are both connected to the adjusting rod (15) through the chute (12).

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