CN220716302U

CN220716302U - Lithium ion battery coating diaphragm thickness adjusting device

Info

Publication number: CN220716302U
Application number: CN202321965873.7U
Authority: CN
Inventors: 高妍妍; 陈建成; 田磊; 顾涛; 李雷
Original assignee: Cangzhou Mingzhu Lithium Ion Battery Separator Co ltd
Current assignee: Cangzhou Mingzhu Lithium Ion Battery Separator Co ltd
Priority date: 2023-07-25
Filing date: 2023-07-25
Publication date: 2024-04-05
Anticipated expiration: 2033-07-25

Abstract

The utility model relates to the technical field of diaphragm coating, in particular to a lithium ion battery coating diaphragm thickness adjusting device, which comprises a roller coater body and a lithium battery diaphragm, wherein a fixed support is fixedly connected to a discharge end of the roller coater body, a first drying box is fixedly connected to the fixed support, a thickness gauge is fixedly connected to one side of the first drying box, which is far away from the roller coater body, a spraying mechanism is fixedly connected to one side of the thickness gauge, which is far away from the first drying box, and a second drying box is fixedly connected to one side of the spraying mechanism, and the thickness gauge and the spraying mechanism are used for thickness measurement.

Description

Lithium ion battery coating diaphragm thickness adjusting device

Technical Field

The utility model relates to the technical field of diaphragm coating, in particular to a thickness adjusting device for a lithium ion battery coating diaphragm.

Background

At present, a plurality of lithium ion battery diaphragms are coated by roller coating, the roller coating has the advantages of good coating quality, slurry saving and the like, and Chinese patent with the application number of CN202211544211.2 provides a lithium ion battery diaphragm coating device and a lithium ion battery diaphragm coating method.

The lithium battery diaphragm is directly rolled after being dried by the pure roller, but the uniformity of the transverse thickness of the lithium battery diaphragm is poor due to the difference of the transverse thickness of the base film and the difference of the thickness of the product caused by the non-uniformity of sizing agent in the coating process, the thickness of the transverse coating is uncontrollably adjusted, and the quality of the product is poor.

Disclosure of Invention

In view of the above, the present utility model is directed to a thickness adjusting device for a coating separator of a lithium ion battery to solve the above-mentioned problems.

Based on the above purpose, the utility model provides a lithium ion battery coating diaphragm thickness adjusting device, which comprises a roller coater body and a lithium battery diaphragm, wherein a fixed support is fixedly connected to the discharge end of the roller coater body, a first drying box is fixedly connected to the fixed support, a thickness gauge is fixedly connected to one side of the first drying box, which is far away from the roller coater body, a spraying mechanism is fixedly connected to one side of the thickness gauge, which is far away from the first drying box, and a second drying box is fixedly connected to one side of the spraying mechanism, which is far away from the thickness gauge.

Optionally, the spraying mechanism includes guide rail and first rack that fixedly connected with thickness gauge kept away from first stoving case one side, sliding connection has the fixed plate on guide rail and the first rack, fixedly connected with second rack on the fixed plate, sliding connection has the fixing base is established to the cover on the fixed plate, fixedly connected with first motor on the fixing base, the output fixedly connected with second gear of first motor, the fixing base is located the position fixedly connected with dead lever of fixed plate below, fixedly connected with spraying head on the dead lever, the fixed plate is close to the position fixedly connected with second motor of first rack, the output fixedly connected with first gear of second motor.

Optionally, the first gear is meshed with the first rack.

Optionally, the second gear is meshed with the second rack.

Optionally, the spray head is adjacent to a lithium battery separator.

Optionally, a console is fixedly connected to one side of the fixing plate.

Optionally, the thickness gauge, the spraying mechanism and the console are electrically connected.

Optionally, the lithium battery diaphragm passes through the first drying box, the thickness gauge, the spraying mechanism and the second drying box in sequence.

The utility model has the beneficial effects that: through thickness gauge and spraying mechanism that sets up, thickness gauge carries out thickness measurement, when the thickness of lithium cell diaphragm is less than the processing thickness scope, spraying mechanism starts, sprays lithium cell diaphragm thickness deficiency, makes lithium cell diaphragm thickness reach the processing thickness within range, has solved the problem of the uncontrollable adjustment of lithium cell diaphragm transverse coating thickness, has improved the problem that coating diaphragm thickness homogeneity is poor, has improved product quality.

Drawings

In order to more clearly illustrate the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only of the utility model and that other drawings can be obtained from them without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a thickness adjusting device for a coating diaphragm of a lithium ion battery according to an embodiment of the utility model;

FIG. 2 is a schematic view of a spraying mechanism according to an embodiment of the present utility model;

fig. 3 is a schematic diagram of a thickness adjusting device for a coated separator of a lithium ion battery according to an embodiment of the utility model.

Marked in the figure as:

1. a roll coater body; 2. a fixed bracket; 3. a first drying box; 4. a thickness gauge; 5. a spraying mechanism; 6. a second drying box; 7. a guide rail; 8. a first rack; 9. a fixing plate; 10. a second rack; 11. a fixing seat; 12. a first motor; 13. a second gear; 14. a fixed rod; 15. a spray head; 16. a second motor; 17. a first gear; 18. a console; 19. a lithium battery separator.

Detailed Description

The present utility model will be further described in detail with reference to specific embodiments in order to make the objects, technical solutions and advantages of the present utility model more apparent.

It is to be noted that unless otherwise defined, technical or scientific terms used herein should be taken in a general sense as understood by one of ordinary skill in the art to which the present utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

As shown in fig. 1 to 3, a lithium ion battery coating diaphragm thickness adjusting device comprises a roller coater body 1 and a lithium ion battery diaphragm 19, wherein a discharge end of the roller coater body 1 is fixedly connected with a fixed support 2, a first drying box 3 is fixedly connected with the fixed support 2, one side of the first drying box 3, which is far away from the roller coater body 1, is fixedly connected with a thickness gauge 4, one side of the thickness gauge 4, which is far away from the first drying box 3, is fixedly connected with a spraying mechanism 5, and one side of the spraying mechanism 5, which is far away from the thickness gauge 4, is fixedly connected with a second drying box 6.

When the lithium battery diaphragm 19 is coated, the slurry is dried and fixed through the first drying box 3, and then the thickness measurement is carried out through the thickness gauge 4, when the thickness of the lithium battery diaphragm 19 is within the processing thickness range, the spraying mechanism 5 does not spray, the lithium battery diaphragm 19 is wound after passing through the second drying box 6, when the thickness of the lithium battery diaphragm 19 is smaller than the processing thickness range, the spraying mechanism 5 is started to spray the insufficient thickness of the lithium battery diaphragm 19, so that the thickness of the lithium battery diaphragm 19 reaches the processing thickness range, when the thickness of the lithium battery diaphragm 19 is larger than the processing thickness range, information is transmitted to the control console 18, the problem that the transverse coating thickness of the lithium battery diaphragm 19 is uncontrollably regulated is solved, the problem that the uniformity of the coating diaphragm thickness is poor is solved, and the product quality is improved.

In one embodiment, as shown in fig. 2, the spraying mechanism 5 includes a guide rail 7 and a first rack 8 fixedly connected to the thickness gauge 4 and far away from one side of the first drying box 3, a fixing plate 9 is slidably connected to the guide rail 7 and the first rack 8, a second rack 10 is fixedly connected to the fixing plate 9, a fixing seat 11 is sleeved on the fixing plate 9 and slidably connected to the fixing plate, a first motor 12 is fixedly connected to the fixing seat 11, a second gear 13 is fixedly connected to the output end of the first motor 12, a fixing rod 14 is fixedly connected to the fixing seat 11 below the fixing plate 9, a spraying head 15 is fixedly connected to the fixing rod 14, a second motor 16 is fixedly connected to the fixing plate 9 near the position of the first rack 8, and a first gear 17 is fixedly connected to the output end of the second motor 16.

In one embodiment, as shown in fig. 2, the first gear 17 is engaged with the first rack 8.

In one embodiment, as shown in fig. 2, the second gear 13 is engaged with the second rack gear 10.

In one embodiment, the spray head 15 is proximate to the lithium battery separator 19.

When the lithium battery diaphragm 19 is smaller than the machining thickness, the first motor 12 is started, the first motor 12 drives the second gear 13 to rotate, the second gear 13 is meshed with the second rack 10, the fixing seat 11 moves in one direction, the fixing seat 11 moves to drive the fixing rod 14 to move, the fixing rod 14 moves to drive the spraying head 15 to move, meanwhile, the second motor 16 is started, the second motor 16 drives the first gear 17 to rotate, the first gear 17 is meshed with the first rack 8, the fixing plate 9 moves, the fixing seat 11 is driven to move in the other direction, the spraying head 15 moves to the position where the thickness of the lithium battery diaphragm 19 is insufficient to spray, and the thickness of the lithium battery diaphragm 19 reaches the machining thickness range.

In one embodiment, as shown in fig. 1, a console 18 is fixedly connected to one side of the fixing bracket 2.

In one embodiment, the thickness gauge 4, the spraying mechanism 5 and the control console 18 are electrically connected, and the control console 18 receives thickness data measured by the thickness gauge 4 and calculates and controls the position and the spraying amount of the spraying mechanism 5 to be sprayed.

In one embodiment, as shown in fig. 3, the lithium battery separator 19 passes through the first drying box 3, the thickness gauge 4, the spraying mechanism 5, and the second drying box 6 in this order.

Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the utility model (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the utility model, the steps may be implemented in any order and there are many other variations of the different aspects of the utility model as above, which are not provided in detail for the sake of brevity.

The present utility model is intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides a lithium ion battery coating diaphragm thickness adjusting device, includes roller coater body (1) and lithium battery diaphragm (19), its characterized in that, the discharge end fixedly connected with fixed bolster (2) of roller coater body (1), fixedly connected with first stoving case (3) on fixed bolster (2), one side fixedly connected with thickness gauge (4) of roller coater body (1) are kept away from to first stoving case (3), one side fixedly connected with spraying mechanism (5) of keeping away from first stoving case (3) are kept away from to thickness gauge (4), one side fixedly connected with second stoving case (6) of keeping away from thickness gauge (4) are kept away from to spraying mechanism (5).

2. The lithium ion battery coating diaphragm thickness adjusting device according to claim 1, wherein the spraying mechanism (5) comprises a guide rail (7) and a first rack (8) which are fixedly connected to one side, far away from the first drying box (3), of the thickness gauge (4), a fixing plate (9) is slidingly connected to the guide rail (7) and the first rack (8), a second rack (10) is fixedly connected to the fixing plate (9), a fixing seat (11) is sleeved on the fixing plate (9), a first motor (12) is fixedly connected to the fixing seat (11), a second gear (13) is fixedly connected to the output end of the first motor (12), a fixing rod (14) is fixedly connected to the fixing seat (11) below the fixing plate (9), a spraying head (15) is fixedly connected to the fixing rod (14), a second motor (16) is fixedly connected to the fixing plate (9) near the first rack (8), and a first gear (17) is fixedly connected to the output end of the second motor (16).

3. A coated separator thickness adjustment device for lithium ion batteries according to claim 2, characterized in that the first gear (17) is in engagement with the first rack (8).

4. A coated separator thickness adjustment device for lithium ion batteries according to claim 2, characterized in that the second gear (13) is engaged with the second rack (10).

5. A coated lithium ion battery separator thickness adjustment device according to claim 2, characterized in that the spray head (15) is close to the lithium battery separator (19).

6. The lithium ion battery coating diaphragm thickness adjusting device according to claim 1, wherein a console (18) is fixedly connected to one side of the fixed support (2).

7. The lithium ion battery coated diaphragm thickness adjusting device according to claim 1, wherein the thickness gauge (4), the spraying mechanism (5) and the console (18) are electrically connected.

8. The lithium ion battery coating diaphragm thickness adjusting device according to claim 1, wherein the lithium ion battery diaphragm (19) sequentially passes through a first drying box (3), a thickness gauge (4), a spraying mechanism (5) and a second drying box (6).