CN217369063U

CN217369063U - Coating device for producing lithium ion battery diaphragm

Info

Publication number: CN217369063U
Application number: CN202122241049.4U
Authority: CN
Inventors: 仇荣保; 曹岗; 杨春杰
Original assignee: Chongqing Xinjucheng Energy Technology Co ltd
Current assignee: Chongqing Xinjucheng Energy Technology Co ltd
Priority date: 2021-09-16
Filing date: 2021-09-16
Publication date: 2022-09-06
Anticipated expiration: 2031-09-16

Abstract

The utility model discloses a coating unit is used in production of lithium ion battery diaphragm, including the outer container, the equal fixedly connected with right baffle of right-hand member front and back of outer container, rear the rear end fixedly connected with second motor of right side baffle, the drive end fixed connection of second motor is in the rear end of wind-up roll, the top left side fixedly connected with thick liquids case of outer container, the first motor of top fixedly connected with of thick liquids case, the drive end of first motor runs through the top and the fixedly connected with stirring roller of thick liquids case, the top left side inner wall fixedly connected with coating machine of outer container. The utility model discloses in, can retrieve unnecessary thick liquids through the collecting box, improve the utilization ratio of thick liquids, avoided the produced impurity of used repeatedly of thick liquids to influence the problem of coating quality simultaneously, air-dry fast to the coating surface of diaphragm through the air-blower, improved coating efficiency, be worth wideling popularize.

Description

Coating device for lithium ion battery diaphragm production

Technical Field

The utility model relates to a lithium cell diaphragm processing field especially relates to a coating unit is used in production of lithium ion battery diaphragm.

Background

In the structure of the lithium battery, a diaphragm is one of key inner layer components, the performance of the diaphragm determines the interface structure, the internal resistance and the like of the battery, the characteristics of the battery such as capacity, cycle, safety performance and the like are directly influenced, the diaphragm with excellent performance has an important function of improving the comprehensive performance of the battery, the main function of the diaphragm is to separate the positive electrode and the negative electrode of the battery and prevent the two electrodes from being in contact with each other to cause short circuit, in addition, the diaphragm also has the function of enabling electrolyte ions to pass through, the material of the diaphragm is non-conductive, the physical and chemical properties of the diaphragm have great influence on the performance of the battery, the types of the batteries are different, and the adopted diaphragms are also different.

Chinese patent document CN211160487U discloses a battery diaphragm coating machine, which comprises a bod, both ends are connected with blowing roller and receipts material roller respectively about the organism, both ends all are equipped with the nip roll of two vertical settings about the inside of organism, both ends are all rotated with the front and back both sides of organism respectively through first pivot around the nip roll and are connected, the inside left side of organism still is equipped with the cleaning roller of vertical setting, both ends are all rotated with the front and back both sides of organism respectively through the second pivot around the cleaning roller and are connected, the rear side fixedly connected with driving motor of organism, and driving motor's output passes through the shaft coupling and rotates with the one end that cleaning roller was kept away from to one of them second pivot and is connected, the upper end fixedly connected with suction box of organism. This patent can be effectual clean the upper surface of base film, avoids the dust granule influence to film the quality, and is convenient for absorb and clear up clear dust granule, and the people of being convenient for use, but the easy seepage of unnecessary coating in its coating process to coating produces impurity easily in the used repeatedly process, influences the coating effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a coating device for producing a lithium ion battery diaphragm.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a coating device for producing a lithium ion battery diaphragm comprises an outer box, wherein a right baffle is fixedly connected to the front and rear of the right end of the outer box, a second motor is fixedly connected to the rear end of the right baffle at the rear part, a driving end of the second motor is fixedly connected to the rear end of a wind-up roll, a slurry box is fixedly connected to the left side of the top end of the outer box, a first motor is fixedly connected to the top end of the slurry box, the driving end of the first motor penetrates through the top end of the slurry box and is fixedly connected with a stirring roll, a coating machine is fixedly connected to the inner wall of the left side of the top end of the outer box, a funnel is fixedly connected to the bottom end of the coating machine, a collecting box is fixedly connected to the rear end of a recovery pipe, the other end of the recovery pipe is fixedly connected to the rear end of the slurry box, and the inner wall of the front of the right side of the bottom of an air blower is fixedly connected to the inner wall of the outer box, the air blower is characterized in that the output end of the air blower is fixedly connected with a main blowing pipe, and the top of the rear end of the main blowing pipe is fixedly connected with two branch blowing pipes.

As a further description of the above technical solution:

the left side of the front end of the outer box is rotatably connected with a box door, and the middle part of the front end of the box door is fixedly connected with an observation window.

As a further description of the above technical solution:

the bottom fixedly connected with base of outer container, both ends middle part all is provided with rectangular hole about the outer container.

As a further description of the above technical solution:

the front and the rear of the left end of the outer box are fixedly connected with a left baffle, and one end of the inner side of the left baffle is respectively and rotatably connected to the front end and the rear end of the discharging roller.

As a further description of the above technical solution:

the front end of the winding roller is rotatably connected with a front right baffle.

As a further description of the above technical solution:

the inner walls of the left side and the right side of the rear end of the outer box are rotatably connected with flattening shafts.

As a further description of the above technical solution:

the top of outer container corresponds the rear fixedly connected with pump body of thick liquids case.

As a further description of the above technical solution:

the inside of funnel is provided with the filter screen, the bottom of thick liquids case is linked together with the top of coating machine.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, at first fix the position of diaphragm, carry out the coating and drive the wind-up roll through the second motor and rotate the diaphragm and carry out the rolling through the coating machine to the diaphragm, thick liquids in the thick liquids case gets into the coating machine in coating process, the coating machine gets into the collecting box after passing through the filter screen filtration of funnel with unnecessary thick liquids, then through the thick liquids suction thick liquids case of the pump body in with the collecting box, it makes its misce bene to stir thick liquids to drive the stirring roller through first motor, the utilization ratio of thick liquids has been improved, the produced impurity of the used repeatedly of thick liquids influence the problem of coating quality has been avoided simultaneously.

2. The utility model discloses in, the diaphragm coating is accomplished the back, through the air-blower air blast, the air current is responsible for by two and sets up the branch pipe discharge of blowing respectively about the diaphragm through blowing again, carries out air-dry fast to the coating surface of diaphragm, accomplishes the rolling through the wind-up roll at last, has improved coating efficiency, is worth wideling popularize.

Drawings

Fig. 1 is a perspective view of a coating apparatus for producing a lithium ion battery separator according to the present invention;

fig. 2 is an elevation view of the internal structure of a coating apparatus for producing a lithium ion battery separator according to the present invention;

fig. 3 is the utility model provides a lithium ion battery diaphragm production is with coating unit's inner structure side view.

Illustration of the drawings:

1. an outer box; 2. a base; 3. a box door; 4. an observation window; 5. a left baffle; 6. a discharge roller; 7. a slurry tank; 8. a first motor; 9. a second motor; 10. a wind-up roll; 11. a strip hole; 12. a right baffle; 13. a stirring roller; 14. coating machine; 15. a blowing branch pipe; 16. flattening the shaft; 17. filtering with a screen; 18. a funnel; 19. a collection box; 20. a blower; 21. a main blowing pipe; 22. a recovery pipe; 23. and a pump body.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a coating device for producing a lithium ion battery diaphragm comprises an outer box 1, right baffle plates 12 are fixedly connected to the front and rear parts of the right end of the outer box 1, a second motor 9 is fixedly connected to the rear end of the right baffle plate 12 at the rear part, the driving end of the second motor 9 is fixedly connected to the rear end of a winding roller 10, a slurry box 7 is fixedly connected to the left side of the top end of the outer box 1, a first motor 8 is fixedly connected to the top end of the slurry box 7, the driving end of the first motor 8 penetrates through the top end of the slurry box 7 and is fixedly connected with a stirring roller 13, a coating machine 14 is fixedly connected to the inner wall of the left side of the top end of the outer box 1, a funnel 18 is fixedly connected to the bottom end of the coating machine 14, a collecting box 19 is fixedly connected to the bottom end of the funnel 18, the rear end of the collecting box 19 is fixedly connected to one end of a recovery pipe 22, the other end of the recovery pipe 22 is fixedly connected to the rear end of the slurry box 7, an air blower is fixedly connected to the inner wall of the front side of the bottom right side of the outer box 1, the output end fixedly connected with of air-blower 20 bloies and is responsible for 21, bloies two branch pipes 15 of blowing of the rear end top fixedly connected with of being responsible for 21, fix the position of diaphragm, coat the diaphragm and drive wind-up roll 10 through second motor 9 and rotate and carry out the rolling to the diaphragm through coating machine 14, thick liquids in coating in-process thick liquids case 7 get into coating machine 14, coating machine 14 filters unnecessary thick liquids through the filter screen 17 of funnel 18 and gets into collecting box 19, then through pump body 23 with the thick liquids suction thick liquids case 7 in the collecting box 19, can reuse after driving stirring roller 13 through first motor 8 and stirring its misce bene messenger's thick liquids.

A box door 3 is rotatably connected to the left side of the front end of the outer box 1, an observation window 4 is fixedly connected to the middle part of the front end of the box door 3, so that the internal coating condition can be observed from the outside, a base 2 is fixedly connected to the bottom end of the outer box 1, the stability of the outer box 1 is improved, a strip hole 11 is arranged in the middle part of each of the left and right ends of the outer box 1, a left baffle 5 is fixedly connected to the front and rear parts of the left end of the outer box 1, one end of the inner side of the left baffle 5 is rotatably connected to the front and rear ends of the discharging roller 6, the front end of the winding roller 10 is rotatably connected to a front right baffle 12, the inner walls of the left and right sides of the rear end of the outer box 1 are rotatably connected to a flattening shaft 16, a diaphragm can be straightened after passing through the flattening shaft 16, so as to improve the coating effect, a funnel 23 is fixedly connected to the top end of the outer box 1 corresponding to the rear part of the slurry box 7, a filter screen 17 is arranged in 18, the bottom of the slurry box 7 is communicated with the top of the coating machine 14, the coating machine 14 filters the excess slurry through the screen 17 of the hopper 18 into a collection tank 19, and then pumps the slurry in the collection tank 19 into the slurry tank 7 through a pump 23.

The working principle is as follows: firstly, fixing the position of the diaphragm, coating the diaphragm by a coating machine 14, driving a winding roller 10 to rotate by a second motor 9 to wind the diaphragm, the slurry in the slurry tank 7 enters the coating machine 14 during the coating process, the coating machine 14 filters the redundant slurry through the filter screen 17 of the funnel 18 and then enters the collecting tank 19, then the slurry in the collecting box 19 is pumped into the slurry box 7 through the pump body 23, the first motor 8 drives the stirring roller 13 to stir the slurry to ensure that the slurry is uniformly mixed, the utilization rate of the slurry is improved, meanwhile, the problem that impurities generated by the repeated use of the slurry influence the coating quality is avoided, and after the coating of the diaphragm is finished, through the air-blower 20 blast air, the air current is arranged respectively by two through the main pipe 21 of blowing and is blown branch pipe 15 discharges on the diaphragm below again, air-dries fast to the coating surface of diaphragm, accomplishes the rolling through wind-up roll 10 at last.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a coating unit is used in production of lithium ion battery diaphragm, includes outer container (1), its characterized in that: the front and rear parts of the right end of the outer box (1) are fixedly connected with a right baffle (12), the rear part of the outer box (1) is fixedly connected with a second motor (9), the driving end of the second motor (9) is fixedly connected with the rear end of a winding roller (10), the left side of the top end of the outer box (1) is fixedly connected with a slurry box (7), the top end of the slurry box (7) is fixedly connected with a first motor (8), the driving end of the first motor (8) penetrates through the top end of the slurry box (7) and is fixedly connected with a stirring roller (13), the inner wall of the left side of the top end of the outer box (1) is fixedly connected with a coating machine (14), the bottom end of the coating machine (14) is fixedly connected with a funnel (18), the bottom end of the funnel (18) is fixedly connected with a collecting box (19), and the rear end of the collecting box (19) is fixedly connected with one end of a recovery pipe (22), the other end fixed connection of recovery tube (22) is in the rear end of thick liquids case (7), bottom right side the place ahead inner wall fixedly connected with air-blower (20) of outer container (1), the output fixedly connected with of air-blower (20) is bloied and is responsible for (21), the rear end top fixedly connected with two branch pipes (15) of blowing of the main pipe (21) of blowing.

2. The coating device for producing the lithium ion battery separator according to claim 1, wherein: the left side of the front end of the outer box (1) is rotatably connected with a box door (3), and the middle part of the front end of the box door (3) is fixedly connected with an observation window (4).

3. The coating device for producing the lithium ion battery separator according to claim 1, wherein: the bottom fixedly connected with base (2) of outer container (1), both ends middle part all is provided with rectangular hole (11) about outer container (1).

4. The coating device for producing the lithium ion battery separator according to claim 1, wherein: the front and the rear of the left end of the outer box (1) are fixedly connected with a left baffle plate (5), and one end of the inner side of the left baffle plate (5) is respectively connected to the front end and the rear end of the discharging roller (6) in a rotating manner.

5. The coating device for producing the lithium ion battery separator according to claim 1, wherein: the front end of the winding roller (10) is rotationally connected with a front right baffle (12).

6. The coating device for producing the lithium ion battery separator according to claim 1, wherein: the inner walls of the left side and the right side of the rear end of the outer box (1) are rotatably connected with flattening shafts (16).

7. The coating device for producing the lithium ion battery separator according to claim 1, wherein: the top end of the outer box (1) corresponds to the rear part of the slurry box (7) and is fixedly connected with a pump body (23).

8. The coating device for producing the lithium ion battery separator according to claim 1, wherein: the inside of funnel (18) is provided with filter screen (17), the bottom of thick liquids case (7) is linked together with the top of coating machine (14).