Water-resistant lithium battery ceramic coating diaphragm production device

Abstract

The utility model discloses a water-resistant lithium battery ceramic coating diaphragm production device, which relates to the technical field of lithium battery production and comprises a fixed seat, a coating device is fixedly mounted on the top surface of the fixed seat, and a storage tank is mounted on one side of the fixed seat, which is positioned on the coating device. A diaphragm needing to be coated penetrates through the surfaces of the two winding rollers in a crossed mode and is laid in a positioning groove of a coating table, and under the work of a pump body, coating for the diaphragm is evenly sprayed to the surface of the diaphragm laid in the positioning groove through a plurality of sprayers installed at the bottom of the surface of a material spraying pipe; the rotating shaft is controlled by the output end of the driving motor to drive the coating roller to uniformly smear the coating sprayed on the surface of the diaphragm, under the cooperation of the limiting discs and the positioning grooves installed at the two ends of the two winding rollers, the stability of the diaphragm during coating and conveying is ensured, and the situation that part of the coating area cannot be coated due to the fact that the position of the diaphragm deviates during coating and conveying is prevented. And the production quality of the coated diaphragm is influenced due to the non-uniform coating phenomenon.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery production, in particular to a water-resistant lithium battery ceramic coating diaphragm production device. Background Art

[0002] Lithium battery is a primary battery that uses lithium metal or lithium alloy as the negative electrode material and a non-aqueous electrolyte solution. When producing lithium batteries, the application of coated diaphragms is indispensable to protect the lithium batteries.

[0003] However, during the production of existing coated diaphragms, the coating device has poor stability when coating the diaphragm, and the position of the diaphragm is easily shifted in the coating device during coating and transportation, resulting in partial coating areas not being coated, resulting in uneven coating, affecting the production quality of the coated diaphragm, and rendering the coated diaphragm unusable. Secondly, when the coating used in the production of the coated diaphragm is used, the coating is prone to precipitation or adhesion after long-term storage, resulting in affecting the production quality of the coated diaphragm after being coated on the surface of the diaphragm. In response to the above problems, the inventors proposed a water-resistant lithium battery ceramic coated diaphragm production device to solve the above problems. Utility Model Content

[0004] In order to solve the problem that the position of the diaphragm is easily shifted in the coating device during coating and transportation, resulting in partial coating area not being coated, uneven coating, affecting the production quality of the coated diaphragm, and rendering the coated diaphragm unusable; the purpose of the utility model is to provide a water-resistant lithium battery ceramic coated diaphragm production device.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions: a water-resistant lithium battery ceramic coating diaphragm production device, including a fixed seat, a coating device is fixedly installed on the top surface of the fixed seat, a storage tank is installed on one side of the coating device of the fixed seat, and the coating device includes a positioning frame, the positioning frame is fixedly installed on the top surface of the fixed seat, a driving motor is installed on one side of the positioning frame, a rotating shaft is fixedly installed on the output end of the driving motor, a coating roller is fixedly sleeved on the surface of the rotating shaft, a coating table is fixedly installed at the bottom of the coating roller in the positioning frame, a positioning groove is opened on the top surface of the coating table, and a positioning groove is opened on the top surface of the coating table. A rotating shaft is symmetrically installed on one side of the coating roller, and there are two rotating shafts. Winding rollers are fixedly sleeved on the surfaces of the two rotating shafts. Limiting plates are fixedly installed on both ends of the two winding rollers. A positioning frame is fixedly installed on the top surface of the positioning frame. A pump body is installed in the middle of the top surface of the positioning frame. A feeding pipe is fixedly installed in the middle of the bottom surface of the storage tank. The end of the feeding pipe away from the storage tank is fixedly connected to the input end of the pump body. A connecting pipe is fixedly installed on the output end of the pump body. The end of the connecting pipe away from the pump body passes through the positioning frame and is connected to a spray pipe. Evenly distributed spray heads are fixedly installed on the bottom of the surface of the spray pipe.

[0006] The coating for coating the diaphragm is stored in a storage tank. When it is necessary to produce a ceramic coated diaphragm for a lithium battery, the diaphragm to be coated is crossed through the surfaces of two winding rollers with the cooperation of the unwinding device and the winding device, and laid in the positioning groove of the coating table. The switch of the pump body is turned on. Under the operation of the pump body, the coating stored in the storage tank is injected into the spray pipe through the feeding pipe and the connecting pipe, and is evenly sprayed on the surface of the diaphragm laid in the positioning groove through multiple nozzles installed at the bottom of the spray pipe surface. The switch of the driving motor is turned on, and the output end of the driving motor controls the rotating shaft to drive the coating roller to rotate. The coating sprayed on the surface of the diaphragm is evenly spread by the coating roller. With the cooperation of the limit plates and the positioning grooves installed at both ends of the two winding rollers, the stability of the diaphragm during coating is ensured, and the position of the diaphragm during coating is prevented from shifting, resulting in partial coating areas not being coated, uneven coating, affecting the production quality of the coated diaphragm, and rendering the coated diaphragm unusable.

[0007] Preferably, a servo motor is installed in the middle of the top surface of the storage tank, and a stirring shaft is fixedly installed at the output end of the servo motor. The surface of the stirring shaft is fixedly sleeved with evenly distributed fixing parts. The number of fixing parts is four, and evenly distributed stirring rollers are fixedly installed on the surfaces of the four fixing parts. The stirring rollers and the fixing parts cooperate with each other. When the coating diaphragm needs to be coated with the paint stored in the storage tank, the switch of the servo motor is turned on, and the stirring shaft is controlled to rotate through the output end of the servo motor. When the stirring shaft rotates, multiple stirring rollers respectively installed on the four fixing parts are controlled to rotate, and the paint stored in the storage tank is stirred by the stirring rollers to prevent the paint from settling or sticking due to long-term storage, which affects the production quality of the coated diaphragm.

[0008] Preferably, positioning members are installed at both ends of the surface of the spray pipe, and there are two positioning members. The two positioning members are symmetrically installed on the top surface of the positioning frame. The positioning member cooperates with the spray pipe, and the spray pipe is limited and fixed by the two positioning members, and the spraying work of the coating diaphragm is completed in cooperation with the spray head. First bearings are sleeved at both ends of the surface of the rotating shaft, and there are two first bearings. The two first bearings are respectively fixedly installed on both sides of the positioning frame. The first bearing and the rotating shaft cooperate with each other, and the limiting of the rotating shaft in the positioning frame is completed by the two first bearings. With the cooperation of the two first bearings, the auxiliary rotating shaft controls the coating roller to rotate. Second bearings are sleeved at both ends of the surfaces of the two rotating shafts, and the second bearings are fixedly installed on both sides of the positioning frame. The second bearing and the rotating shaft cooperate with each other. There are two rotating shafts, and two second bearings are installed at both ends of each rotating shaft. With the cooperation of the two second bearings respectively installed at both ends of each rotating shaft, the positioning of the two rotating shafts is completed, and the two rotating shafts are assisted to control the winding roller to rotate.

[0009] Preferably, the bottom surface of the storage tank is fixedly installed with evenly distributed support legs, the number of support legs is three, and an injection tube is fixedly installed on one side of the top surface of the storage tank. The support and fixation of the storage tank are completed by the three support legs. The storage tank is installed on one side of the coating device to cooperate with the coating device to work. A rotating part is sleeved on one end of the surface of the stirring shaft, and the rotating part is fixedly sleeved in the top surface of the storage tank. The rotating part and the stirring shaft cooperate with each other, and the limited positioning of the stirring shaft in the storage tank is completed by the rotating part, and the stirring shaft is assisted to rotate, thereby increasing the stability of the stirring shaft during rotation. A support frame is fixedly installed on the bottom surface of the fixed seat, and the support frame and the fixed seat cooperate with each other. The support of the fixed seat is completed by the support frame, and the coating device is installed in the designated area in cooperation with the fixed seat for fixation to complete the coating work of the coating diaphragm.

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

[0011] 1. In the utility model, with the cooperation of the unwinding device and the winding device, the diaphragm to be coated is crossed through the surfaces of the two winding rollers and laid in the positioning groove of the coating table. Under the operation of the pump body, the diaphragm coating is evenly sprayed on the surface of the diaphragm laid in the positioning groove through multiple nozzles installed at the bottom of the spray pipe surface. The output end of the driving motor controls the rotating shaft to drive the coating roller to evenly spread the coating sprayed on the surface of the diaphragm. With the cooperation of the limit plates and the positioning grooves installed at both ends of the two winding rollers, the stability of the diaphragm during coating and transportation is ensured, and the position of the diaphragm is prevented from shifting during coating and transportation, so that part of the coating area cannot be coated, uneven coating occurs, and the production quality of the coated diaphragm is affected, so that the coated diaphragm cannot be used;

[0012] 2. In the utility model, when it is necessary to use the paint stored in the storage tank to coat the coating diaphragm, turn on the switch of the servo motor, and control the stirring shaft to rotate through the output end of the servo motor. When the stirring shaft rotates, control the rotation of multiple stirring rollers installed on four fixing parts, and stir the paint stored in the storage tank through the stirring rollers to prevent the paint from settling or sticking due to long-term storage, which affects the production quality of the coating diaphragm. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model.

[0015] Figure 2 This is the main view of the overall structure of the utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the coating device of the utility model.

[0017] Figure 4 This is a cross-sectional view of the internal structure of the storage tank of the utility model.

[0018] In the figure: 1. fixed seat; 11. support frame; 2. coating device; 21. positioning frame; 22. positioning frame; 23. driving motor; 231. rotating shaft; 232. coating roller; 233. first bearing; 24. coating table; 241. positioning groove; 25. rotating shaft; 251. winding roller; 252. limiting plate; 253. second bearing; 3. storage tank; 31. feeding pipe; 32. injection pipe; 33. supporting leg; 4. servo motor; 41. stirring shaft; 42. fixing part; 43. stirring roller; 44. rotating part; 5. pump body; 51. connecting pipe; 52. spray pipe; 521. positioning part; 53. nozzle. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: Figure 1-4As shown, the utility model provides a production device for a water-resistant lithium battery ceramic coating diaphragm, including a fixed seat 1, a coating device 2 is fixedly installed on the top surface of the fixed seat 1, a storage tank 3 is installed on one side of the coating device 2 of the fixed seat 1, and the coating device 2 includes a positioning frame 21, the positioning frame 21 is fixedly installed on the top surface of the fixed seat 1, a driving motor 23 is installed on one side of the positioning frame 21, a rotating shaft 231 is fixedly installed on the output end of the driving motor 23, a coating roller 232 is fixedly sleeved on the surface of the rotating shaft 231, a coating table 24 is fixedly installed at the bottom of the coating roller 232 in the positioning frame 21, a positioning groove 241 is opened on the top surface of the coating table 24, and a positioning groove 241 is opened on one side of the coating roller 232 in the positioning frame 21. The rotating shafts 25 are symmetrically installed on the sides, and there are two rotating shafts 25. The surfaces of the two rotating shafts 25 are fixedly sleeved with winding rollers 251, and both ends of the two winding rollers 251 are fixedly installed with limit disks 252. The top surface of the positioning frame 21 is fixedly installed with a positioning frame 22, and the middle of the top surface of the positioning frame 22 is installed with a pump body 5. A feeding pipe 31 is fixedly installed in the middle of the bottom surface of the storage tank 3. The end of the feeding pipe 31 away from the storage tank 3 is fixedly connected to the input end of the pump body 5, and the output end of the pump body 5 is fixedly installed with a connecting pipe 51. The end of the connecting pipe 51 away from the pump body 5 passes through the positioning frame 22 and is connected with a spraying pipe 52. The bottom of the surface of the spraying pipe 52 is fixedly installed with evenly distributed nozzles 53;

[0021] The coating material for coating the diaphragm is stored in the storage tank 3. When the ceramic coating diaphragm for lithium battery needs to be produced, the diaphragm to be coated is passed through the surfaces of the two winding rollers 251 in coordination with the unwinding device and the winding device, and is laid in the positioning groove 241 of the coating table 24. The switch of the pump body 5 is turned on. Under the operation of the pump body 5, the coating material stored in the storage tank 3 is injected into the spray pipe 52 through the feeding pipe 31 and the connecting pipe 51, and is evenly sprayed on the diaphragm in the positioning groove 241 through multiple nozzles 53 installed at the bottom of the spray pipe 52. The diaphragm surface is designed, the switch of the driving motor 23 is turned on, and the rotating shaft 231 is controlled by the output end of the driving motor 23 to drive the coating roller 232 to rotate, and the coating sprayed on the diaphragm surface is evenly spread by the coating roller 232. With the cooperation of the limit plates 252 and the positioning grooves 241 installed at both ends of the two winding rollers 251, the stability of the diaphragm during coating is ensured, and the position of the diaphragm is prevented from shifting during coating, resulting in partial coating area not being coated, resulting in uneven coating, affecting the production quality of the coated diaphragm, and rendering the coated diaphragm unusable.

[0022] A servo motor 4 is installed in the middle of the top surface of the storage tank 3, and a stirring shaft 41 is fixedly installed at the output end of the servo motor 4. The surface of the stirring shaft 41 is fixedly sleeved with evenly distributed fixing members 42. The number of the fixing members 42 is four, and evenly distributed stirring rollers 43 are fixedly installed on the surfaces of the four fixing members 42. The stirring rollers 43 and the fixing members 42 cooperate with each other.

[0023] By adopting the above technical solution, when it is necessary to use the paint stored in the storage tank 3 to coat the coating diaphragm, the switch of the servo motor 4 is turned on, and the stirring shaft 41 is controlled to rotate through the output end of the servo motor 4. When the stirring shaft 41 rotates, the multiple stirring rollers 43 respectively installed on the four fixing parts 42 are controlled to rotate, and the paint stored in the storage tank 3 is stirred by the stirring rollers 43 to prevent the paint from precipitating or sticking due to long-term storage, which affects the production quality of the coating diaphragm.

[0024] Positioning members 521 are installed at both ends of the surface of the spraying pipe 52. There are two positioning members 521. The two positioning members 521 are symmetrically installed on the top surface of the positioning frame 22. The positioning members 521 and the spraying pipe 52 cooperate with each other.

[0025] By adopting the above technical solution, the two positioning members 521 are used to limit and fix the spray pipe 52, and the spraying work of the coating diaphragm is completed in cooperation with the spray head 53.

[0026] Both ends of the surface of the rotating shaft 231 are sleeved with first bearings 233. There are two first bearings 233. The two first bearings 233 are respectively fixedly installed in the two sides of the positioning frame 21. The first bearings 233 and the rotating shaft 231 cooperate with each other.

[0027] By adopting the above technical solution, the rotation shaft 231 is limited in the positioning frame 21 by the two first bearings 233 . With the cooperation of the two first bearings 233 , the auxiliary rotation shaft 231 controls the coating roller 232 to rotate.

[0028] Second bearings 253 are sleeved on both ends of the surfaces of the two rotating shafts 25. The second bearings 253 are fixedly installed in both sides of the positioning frame 21. The second bearings 253 and the rotating shafts 25 cooperate with each other.

[0029] By adopting the above technical solution, the number of rotating shafts 25 is two, and two second bearings 253 are installed at both ends of each rotating shaft 25. With the cooperation of the two second bearings 253 installed at both ends of each rotating shaft 25, the two rotating shafts 25 are positioned while assisting the two rotating shafts 25 to control the winding roller 251 to rotate.

[0030] The bottom surface of the storage tank 3 is fixedly mounted with evenly distributed support legs 33, the number of the support legs 33 is three, and a material injection pipe 32 is fixedly mounted on one side of the top surface of the storage tank 3;

[0031] By adopting the above technical solution, the storage tank 3 is supported and fixed by three supporting legs 33, and the storage tank 3 is installed on one side of the coating device 2 to cooperate with the coating device 2 to work.

[0032] A rotating member 44 is sleeved on one end of the surface of the stirring shaft 41. The rotating member 44 is fixedly sleeved in the top surface of the storage tank 3. The rotating member 44 and the stirring shaft 41 cooperate with each other.

[0033] By adopting the above technical solution, the stirring shaft 41 is limitedly positioned in the storage tank 3 through the rotating member 44, and the stirring shaft 41 is assisted to rotate, thereby increasing the stability of the stirring shaft 41 during rotation.

[0034] A support frame 11 is fixedly mounted on the bottom surface of the fixing seat 1, and the support frame 11 cooperates with the fixing seat 1;

[0035] By adopting the above technical solution, the support of the fixing seat 1 is completed by the support frame 11, and the coating device 2 is installed in a designated area and fixed in cooperation with the fixing seat 1 to complete the coating work of the coating membrane.

[0036] Working principle: the coating for coating the diaphragm is stored in the storage tank 3. When the ceramic coated diaphragm for lithium battery needs to be produced, the diaphragm to be coated is crossed through the surfaces of the two winding rollers 251 under the cooperation of the unwinding device and the winding device, and laid in the positioning groove 241 of the coating table 24. The switch of the pump body 5 is turned on. Under the operation of the pump body 5, the coating stored in the storage tank 3 is injected into the spray pipe 52 through the feeding pipe 31 and the connecting pipe 51. The surface of the diaphragm laid in the positioning groove 241 is evenly sprayed through the multiple nozzles 53 installed at the bottom of the surface of the spray pipe 52. The switch of the driving motor 23 is turned on. The output end of the driving motor 23 controls the rotating shaft 231 to drive the coating roller 232 to rotate. The coating roller 232 is used to evenly spread the coating sprayed on the surface of the diaphragm. The limit plates 252 and the positioning grooves 241 installed at both ends of the two winding rollers 251 cooperate to ensure the stability of the diaphragm during coating.

[0037] When the coating diaphragm needs to be coated with the coating stored in the storage tank 3, the switch of the servo motor 4 is turned on, and the stirring shaft 41 is controlled to rotate through the output end of the servo motor 4. When the stirring shaft 41 rotates, the multiple stirring rollers 43 respectively installed on the four fixing parts 42 are controlled to rotate, and the coating stored in the storage tank 3 is stirred by the stirring rollers 43 to prevent the coating from settling or sticking due to long-term storage, which affects the production quality of the coating diaphragm.

[0038] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A device for producing a water-resistant lithium battery ceramic coating diaphragm, comprising a fixing seat (1), characterized in that: A coating device (2) is fixedly mounted on the top surface of the fixing seat (1); a storage tank (3) is mounted on one side of the fixing seat (1) located on the coating device (2); the coating device (2) comprises a positioning frame (21); the positioning frame (21) is fixedly mounted on the top surface of the fixing seat (1); a driving motor (23) is mounted on one side of the positioning frame (21); a rotating shaft (231) is fixedly mounted on the output end of the driving motor (23); a coating roller (232) is fixedly sleeved on the surface of the rotating shaft (231) ), a coating platform (24) is fixedly installed at the bottom of the coating roller (232) in the positioning frame (21), a positioning groove (241) is provided on the top surface of the coating platform (24), a rotating shaft (25) is symmetrically installed at one side of the coating roller (232) in the positioning frame (21), the number of the rotating shafts (25) is two, a winding roller (251) is fixedly sleeved on the surface of the two rotating shafts (25), and limiting disks (252) are fixedly installed at both ends of the two winding rollers (251); A positioning frame (22) is fixedly mounted on the top surface of the positioning frame (21), a pump body (5) is mounted in the middle of the top surface of the positioning frame (22), a feeding pipe (31) is fixedly mounted in the middle of the bottom surface of the storage tank (3), one end of the feeding pipe (31) away from the storage tank (3) is fixedly connected to the input end of the pump body (5), a connecting pipe (51) is fixedly mounted on the output end of the pump body (5), one end of the connecting pipe (51) away from the pump body (5) passes through the positioning frame (22) and is connected to a spray pipe (52), and uniformly distributed spray heads (53) are fixedly mounted on the bottom of the surface of the spray pipe (52).

2. A water-resistant lithium battery ceramic coating diaphragm production device as claimed in claim 1, characterized in that: A servo motor (4) is installed in the middle of the top surface of the storage tank (3), and a stirring shaft (41) is fixedly installed on the output end of the servo motor (4). The surface of the stirring shaft (41) is fixedly sleeved with evenly distributed fixing members (42), and the number of the fixing members (42) is four. Evenly distributed stirring rollers (43) are fixedly installed on the surfaces of the four fixing members (42), and the stirring rollers (43) and the fixing members (42) cooperate with each other.

3. A water-resistant lithium battery ceramic coating diaphragm production device as claimed in claim 1, characterized in that: Positioning pieces (521) are installed at both ends of the surface of the spraying pipe (52). There are two positioning pieces (521). The two positioning pieces (521) are symmetrically installed on the inner top surface of the positioning frame (22). The positioning pieces (521) and the spraying pipe (52) cooperate with each other.

4. A water-resistant lithium battery ceramic coating diaphragm production device as claimed in claim 1, characterized in that: Both ends of the surface of the rotating shaft (231) are sleeved with first bearings (233), the number of the first bearings (233) is two, the two first bearings (233) are respectively fixedly installed in the two sides of the positioning frame (21), and the first bearings (233) and the rotating shaft (231) cooperate with each other.

5. The device for producing a water-resistant lithium battery ceramic coating diaphragm according to claim 1, characterized in that: Second bearings (253) are sleeved on both ends of the surfaces of the two rotating shafts (25). The second bearings (253) are fixedly installed in both sides of the positioning frame (21). The second bearings (253) and the rotating shafts (25) cooperate with each other.

6. A water-resistant lithium battery ceramic coating diaphragm production device as claimed in claim 1, characterized in that: The bottom surface of the storage tank (3) is fixedly mounted with evenly distributed support legs (33), the number of the support legs (33) being three, and a material injection pipe (32) is fixedly mounted on one side of the top surface of the storage tank (3).

7. A water-resistant lithium battery ceramic coating diaphragm production device as claimed in claim 2, characterized in that: A rotating member (44) is sleeved on one end of the surface of the stirring shaft (41), and the rotating member (44) is fixedly sleeved in the top surface of the storage tank (3), and the rotating member (44) and the stirring shaft (41) cooperate with each other.

8. The device for producing a water-resistant lithium battery ceramic coating diaphragm according to claim 1, characterized in that: A support frame (11) is fixedly mounted on the bottom surface of the fixing seat (1), and the support frame (11) and the fixing seat (1) cooperate with each other.

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