CN112354816B - Air-float roller - Google Patents
Air-float roller Download PDFInfo
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- CN112354816B CN112354816B CN202110059139.3A CN202110059139A CN112354816B CN 112354816 B CN112354816 B CN 112354816B CN 202110059139 A CN202110059139 A CN 202110059139A CN 112354816 B CN112354816 B CN 112354816B
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- air
- roller core
- roller
- lithium battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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Abstract
The invention relates to the technical field of lithium battery diaphragm coating, in particular to an air floatation roller in a drying procedure, which comprises the following components: interior roller core, interior roller core is the hollow circular cylinder structure, and the periphery of interior roller core is provided with a plurality of lugs along its axial direction encircleing, and the line at the roof center of a plurality of lugs forms the outline of air supporting roller, and the inside cavity of lug, the bottom of two adjacent lugs is connected through interior roller core, and the lug is equipped with the exhaust vent on the lateral wall of interior roller core axial direction along, and the inside of lug and the inside of interior roller core form the air-out cavity to air-out cavity intercommunication exhaust vent. The air floatation roller can be applied to lithium battery diaphragm transmission, and can ensure the stability of lithium battery diaphragm transmission during curve transmission.
Description
Technical Field
The invention relates to the technical field of lithium battery diaphragm coating, in particular to an air floatation roller in a drying procedure.
Background
The air-floating roll is a non-contact roll. Generally, the air-floating roller is structurally characterized in that air outlet holes are formed in the periphery of a roller body, a carrier tape is blown up from the air outlet holes by air flow, and when the carrier tape moves under traction force, the carrier tape can be balanced with the blowing-up force of the air flow, so that the suspended non-contact movement of the carrier tape is realized.
The periphery of reel is equipped with a plurality of exhaust vents at present air supporting roller, blows off the air current simultaneously through a plurality of exhaust vents, and the air current directly blows to the carrier band from the roll body surface, and the air buoyancy jack-up carrier band that the air current formed realizes the non-contact tape transport of carrier band, and usually, these air currents contact the surface of carrier band, and be the point contact with the surface of carrier band, when the carrier band is thicker intensity when higher, for example PET substrate or non-woven fabrics substrate, the point contact can not lead to the fact the damage to the carrier band.
However, the thickness of the lithium battery diaphragm is usually only a few micrometers, and the lithium battery diaphragm is easy to deform, when airflow is directly blown to the lithium battery diaphragm from the surface of the roller, the airflow is in point contact with the surface point of the lithium battery diaphragm, and the stressed area is in a point shape, so that the lithium battery diaphragm is deformed due to large stress, stripes along the transmission direction can be generated in the tape transport process, and the undried slurry can flow to influence the drying effect and the coating quality. Therefore, the existing air floating roller cannot be directly used for coating the lithium battery diaphragm.
In addition, if the carrier band is in curve transmission, the air flow formed by the air outlet hole of the air floatation roller is directly blown to the carrier band from the surface of the roller body, and after the air flow in the middle of the air floatation roller is blown out, the air flow is blocked by the lithium battery diaphragm and only flows out from the space between the edge of the air floatation roller and the edge of the lithium battery diaphragm, so that the air speed in the middle of the air floatation roller is different from the air speed at the edge of the air floatation roller, and the situations of deviation and crumpling during the tape moving.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the problems that an air floatation roller in the prior art cannot be used on a lithium battery diaphragm and a carrier belt in the prior art deviates and wrinkles during curve transmission are solved. The invention provides an air floatation roller which can be applied to lithium battery diaphragm transmission and can ensure the stability of lithium battery diaphragm transmission during curve transmission.
The technical scheme adopted by the invention for solving the technical problems is as follows: an air flotation roller capable of being used to transfer a lithium battery separator, comprising: the inner roller core is of a hollow cylindrical structure, a plurality of convex blocks are arranged around the periphery of the inner roller core along the axial direction of the inner roller core, the connecting line of the center of the top wall of each convex block is formed into the outer contour of the air floating roller, the convex blocks are hollow inside, the bottoms of the adjacent convex blocks are connected through the inner roller core, the convex blocks are arranged on the side wall of the inner roller core in the axial direction, air outlet holes are formed in the inner part of each convex block and the inner part of the inner roller core, and the air outlet cavities are communicated with the air outlet holes.
Set up the lug through the axis direction encircleing along the interior roller core, set up the exhaust vent on the lateral wall of lug, the air current blows off from the exhaust vent, the wind that blows off is mostly blown to adjacent lug, wind blows on the lateral wall of adjacent lug, blow to the surface of lithium battery diaphragm (turn round from adjacent lug lateral wall and blow to the surface of lithium battery diaphragm) through turning round for the first time, can produce ascending air cushion layer between air supporting roller and lithium battery diaphragm, this air cushion can realize the non-contact suspension of lithium battery diaphragm under the condition that does not cause the damage of lithium battery diaphragm, compare in the surface of blowing hole direct blowing to lithium battery diaphragm among the prior art, can avoid forming wave or corrugating on ultra-thin lithium battery diaphragm.
The air outlets are uniformly arranged along the side wall of the bump. The exhaust vent of evenly arranging simultaneously goes out the air on the whole lug lateral wall, and the wind that goes out can flow equalize in the axis direction to can blow to the bottom of lithium battery diaphragm along the advancing direction of lithium battery diaphragm under the state of lithium battery diaphragm motion, thereby and the lithium battery diaphragm surface form air cushion of face contact formation between the surface, and then, further increase the lifting surface area of lithium battery diaphragm, guarantee the stationarity of non-contact tape transport.
The air-floating roller further comprises an outer roller core, the outer roller core and the inner roller core are coaxially arranged, the outer roller core is arranged on the periphery of the inner roller core, the plurality of lugs penetrate out of the outer roller core, the air outlet hole is located in the outer portion of the outer roller core, two adjacent lugs are connected through the side wall of the outer roller core, the outer roller core extends outwards along the axial direction of the outer roller core and extends out of the lugs, an air return opening is formed in the outer roller core, the side walls of the two adjacent lugs and the inner portion of the outer roller core form an air return cavity, and the air return cavity is communicated with the air return opening.
Through set up the return air inlet on outer roller core, the wind energy that comes out from the lug lateral wall returns air from the return air inlet on the outer roller core, can avoid among the prior art when the curve transmission, the air current in air supporting roller middle part flows from the air supporting roller tip, leads to the condition of lithium cell diaphragm walking band off tracking and crumpling.
The top wall of the convex block is provided with a groove along the length direction of the convex block, and the air outlet is formed in the side wall of the groove. Through on the roof of lug and be equipped with the recess along its length direction, the exhaust vent is established in the recess, and the wind energy that the exhaust vent blew off is enough to the both sides return air of lug, and the return air effect is better, and the tape transport is more steady.
Preferably, the groove is a V-shaped groove, the angle of the V-shaped groove is 30-60 degrees, and the depth of the V-shaped groove is 5-20 times of the diameter of the air outlet. The side wall of the V-shaped groove is provided with air blowing holes, air flow uniformly blown out of the air holes can generate an upward uniform air cushion layer after the flow equalization of the air flow in the V-shaped groove, the angle of the V-shaped groove is 30-60 degrees, the flow equalization effect of the air outlet holes on the two sides of the V-shaped groove is better, and when the depth of the V-shaped groove is 5-20 times of the diameter of the air outlet holes, the air blown out of the air outlet holes on the side wall of the V-shaped groove can lift up the lithium battery diaphragm upwards and cannot damage the.
And the air outlet hole and the air return port are formed in one end, close to the lithium battery diaphragm, of the air floatation roller within 180 degrees of the central angle of the air floatation roller. In the process of conveying the lithium battery diaphragm, no matter straight conveying or curve conveying is carried out, the effective use area of the air floatation roller is within 180 degrees of the central angle of the air floatation roller, so that one end, close to the lithium battery diaphragm, of the air floatation roller corresponds to the 180 degrees of the central angle of the air floatation roller, the air outlet hole and the air return hole are formed in the air outlet and air return hole, and energy can be saved.
Preferably, the air outlet cavity is connected with an air blowing device through a first air pipe.
Preferably, the air return cavity is connected with an air suction device through a second air pipe.
The air floatation roller has the beneficial effects that the air floatation roller can be applied to lithium battery diaphragm suspension transmission, and can ensure the stability of lithium battery diaphragm transmission during curve transmission.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a first embodiment of the air-bearing roll of the present invention;
FIG. 2 is a schematic view of a second embodiment of the air-bearing roller of the present invention;
FIG. 3 is a schematic view of a cross-section 1 of a second embodiment of the air-levitation roller of the present invention;
FIG. 4 is a schematic cross-sectional view 2 of a second embodiment of the air-bearing roll of the present invention;
fig. 5 is a schematic view of a third embodiment of the air-bearing roller of the present invention.
Reference numerals:
1. lithium battery diaphragm 10, interior roller core, 20, lug, 21, recess, 22, exhaust vent, 220, air-out cavity, 221, first trachea, 30, outer roller core, 31, return air inlet, 310, return air cavity, 311, second trachea.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, which is a first embodiment of the present invention, an air-floating roll, which can be used to transfer a lithium battery separator 1, includes:
an inner roller core 10, the inner roller core 10 is a hollow cylindrical structure, a plurality of convex blocks 20 are arranged around the outer circumference of the inner roller core 10 along the axial direction, the connecting line of the top wall centers of the convex blocks 20 forms the outer contour of the air floating roller,
the bumps 20 are hollow, the bottoms of two adjacent bumps 20 are connected through the inner roller core 10, the bumps 20 are provided with air outlets 22 on the side wall along the axial direction of the inner roller core 10, air outlet cavities 220 are formed inside the bumps 20 and inside the inner roller core 10, the air outlet cavities 220 are connected with an air blowing device through a first air pipe 221, the air outlet cavities 220 are communicated with the air outlets 22, and the air outlets 22 are uniformly arranged along the side wall of the bumps 20.
The first embodiment has the following beneficial effects: 1. according to the invention, firstly, the convex blocks 20 are arranged in a surrounding manner along the axial direction of the inner roller core 10, the air outlet holes 22 are formed in the side walls of the convex blocks 20, air flow is blown out from the air outlet holes 22, most of blown air is blown to the adjacent convex blocks 20, and a small part of blown air is blown to the gaps between the adjacent convex blocks 20, and the blown air is blown to the side walls of the adjacent convex blocks 20, and is blown to the surface of the lithium battery diaphragm 1 through first turning (blown to the surface of the lithium battery diaphragm 1 from the side walls of the adjacent convex blocks 20), so that an upward uniform air cushion layer is generated between the air floatation roller and the lithium battery diaphragm 1, the air cushion can realize non-contact suspension of the lithium battery diaphragm 1 under the condition that the lithium battery diaphragm 1 is not damaged, and compared with the prior art that the air outlet holes are directly blown to the surface of the lithium battery diaphragm 1.
Then, the air outlets 22 uniformly arranged on the side wall of the whole bump 20 are used for discharging air at the same time, the discharged air can be equalized in the axial direction, and can be blown to the bottom of the lithium battery diaphragm 1 along the advancing direction of the lithium battery diaphragm 1 in the moving state of the lithium battery diaphragm 1, so that a surface contact air cushion is formed between the lithium battery diaphragm 1 and the surface of the lithium battery diaphragm 1, further, the stress area of the lithium battery diaphragm 1 is further increased, and the stability of non-contact traveling is ensured.
As shown in fig. 2 to 4, a second embodiment of the present invention:
the difference from the first embodiment of the present invention is that the air-floating roller further includes: the outer roller core 30, outer roller core 30 and the coaxial setting of interior roller core 10, outer roller core 30 establishes the periphery at interior roller core 10, a plurality of lugs 20 all wear out outer roller core 30, the exhaust vent 22 is located the outside of outer roller core 30, be connected through the lateral wall of outer roller core 30 between two adjacent lugs 20, outer roller core 30 stretches out in lug 20 along its axial direction, be equipped with return air inlet 31 on the outer roller core 30, the inside of the lateral wall of two adjacent lugs 20 and outer roller core 30 forms return air cavity 310, return air cavity 310 is connected with the getter device through second trachea 311, return air cavity 310 communicates return air inlet 31.
The second embodiment has the following beneficial effects: through set up return air inlet 31 on outer roller core 30, the wind energy that comes out from the lug 20 lateral wall returns air from return air inlet 31 on outer roller core 30, can avoid among the prior art when the curve transmission, the air current in air supporting roller middle part flows from the air supporting roller limit, leads to the condition of lithium cell diaphragm 1 walking band off tracking and crumpling.
As shown in fig. 5, a third embodiment of the present invention:
the difference from the second embodiment of the present invention is: the top wall of the bump 20 is provided with a groove 21 along the length direction thereof, and the air outlet 22 is arranged on the side wall of the groove 21. The groove 21 is a V-shaped groove, the angle of the V-shaped groove is 30-60 degrees, and the depth of the V-shaped groove is 5-20 times of the diameter of the air outlet 22.
An air outlet 22 and an air return opening 31 are arranged at one end of the air floatation roller, which is close to the lithium battery diaphragm 1, within 180 degrees corresponding to the central angle of the air floatation roller.
The third embodiment has the following beneficial effects: through on the roof of lug 20 and be equipped with recess 21 along its length direction, exhaust vent 22 establishes in recess 21, and the wind energy that exhaust vent 22 blew out can be to the both sides return air of lug 20, and the return air effect is better, and the tape transport is more steady. The side wall of the V-shaped groove is provided with air blowing holes, air flow uniformly blown out from the air holes can generate an upward uniform air cushion layer after the flow equalization of the air flow in the V-shaped groove, the angle of the V-shaped groove is 30-60 degrees, the flow equalization effect of the air outlet holes 22 on the two sides of the V-shaped groove is better, and when the depth of the V-shaped groove is 5-20 times of the diameter of the air outlet holes 22, the air blown out from the air outlet holes 22 on the side wall of the V-shaped groove can not only lift up the lithium battery diaphragm 1, but also cannot damage.
The air outlet 22 and the air return opening 31 are arranged at one end of the air floatation roller, which is close to the lithium battery diaphragm 1, and correspond to the central angle of the air floatation roller within 180 degrees. In the process of conveying the lithium battery diaphragm 1, no matter straight conveying or curve conveying, the effective use area of the air floatation roller is within 180 degrees of the central angle of the air floatation roller, so that one end of the air floatation roller, which is close to the lithium battery diaphragm 1, corresponds to the 180 degrees of the central angle of the air floatation roller, is provided with the air outlet 22 and the air return opening 31, and air outlet and air return can save energy.
In summary, according to the above embodiments, the air flotation roller of the present invention can be applied to suspension transfer of the lithium battery separator 1, and can ensure the smoothness of transfer of the lithium battery separator 1 during curved transfer.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. An air-flotation roller, usable for transporting lithium battery separators (1), characterized in that it comprises:
the inner roller core (10) is of a hollow cylindrical structure, a plurality of lugs (20) are arranged on the periphery of the inner roller core (10) in a surrounding mode along the axial direction of the inner roller core, connecting lines of the centers of top walls of the lugs (20) form the outer contour of the air floatation roller,
the inside cavity of lug (20), adjacent two the bottom of lug (20) is passed through interior roller core (10) is connected, lug (20) are followed be equipped with exhaust vent (22) on interior roller core (10) axial direction's the lateral wall, the inside of lug (20) and the inside of interior roller core (10) forms into air-out cavity (220), and air-out cavity (220) intercommunication exhaust vent (22).
2. The air-floating roller as claimed in claim 1, wherein said air-outlet holes (22) are uniformly arranged along the side walls of the bumps (20).
3. An air-flotation roller, usable for transporting lithium battery separators (1), characterized in that it comprises:
the inner roller core (10) is of a hollow cylindrical structure, a plurality of lugs (20) are arranged on the periphery of the inner roller core (10) in a surrounding mode along the axial direction of the inner roller core, connecting lines of the centers of top walls of the lugs (20) form the outer contour of the air floatation roller,
the inner parts of the convex blocks (20) are hollow, the bottoms of two adjacent convex blocks (20) are connected through the inner roller core (10), grooves (21) are formed in the top wall of each convex block (20) along the length direction of the top wall, air outlet holes (22) are formed in the side walls of the grooves (21), air outlet cavities (220) are formed in the inner parts of the convex blocks (20) and the inner roller core (10), and the air outlet cavities (220) are communicated with the air outlet holes (22);
the outer roller core (30) and the inner roller core (10) are coaxially arranged, the outer roller core (30) is arranged on the periphery of the inner roller core (10), the plurality of lugs (20) penetrate through the outer roller core (30), the air outlet (22) is located outside the outer roller core (30), two adjacent lugs (20) are connected through the side wall of the outer roller core (30), the outer roller core (30) extends out of the lugs (20) along the axial direction of the outer roller core, an air return opening (31) is formed in the outer roller core (30), the side walls of two adjacent lugs (20) and the inside of the outer roller core (30) form an air return cavity (310), and the air return cavity (310) is communicated with the air return opening (31).
4. An air-bearing roller according to claim 3, characterized in that the grooves (21) are V-grooves having an angle of 30 ° -60 °, the depth of the V-grooves being 5-20 times the diameter of the air-outlet openings (22).
5. The air-bearing roller as claimed in claim 3, characterized in that the air outlet openings (22) and the air return openings (31) are provided at one end of the air-bearing roller close to the lithium battery separator (1) within 180 ° of the central angle of the air-bearing roller.
6. The air-bearing roller as claimed in claim 3, characterized in that the air outlet cavity (220) is connected with an air blowing device through a first air pipe (221).
7. An air-bearing roller as claimed in claim 3, characterised in that the return air cavity (310) is connected to an air-suction device via a second air duct (311).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110059139.3A CN112354816B (en) | 2021-01-18 | 2021-01-18 | Air-float roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110059139.3A CN112354816B (en) | 2021-01-18 | 2021-01-18 | Air-float roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112354816A CN112354816A (en) | 2021-02-12 |
| CN112354816B true CN112354816B (en) | 2021-04-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110059139.3A Active CN112354816B (en) | 2021-01-18 | 2021-01-18 | Air-float roller |
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| CN (1) | CN112354816B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114164583B (en) * | 2021-12-07 | 2023-09-26 | 蓝廷新能源科技(绍兴)有限责任公司 | Air-bearing roller type micro-concave coating method and device |
| CN115990570B (en) * | 2023-03-16 | 2023-08-04 | 宁德时代新能源科技股份有限公司 | Air-float roller and pole piece coating device |
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| CN103557701A (en) * | 2013-11-18 | 2014-02-05 | 北京金晟阳光科技有限公司 | Air-floating roller bed type thermal treatment furnace for semiconductor devices |
| CN205258058U (en) * | 2015-11-30 | 2016-05-25 | 无锡工源机械有限公司 | Air supporting device with housing |
| CN106938883A (en) * | 2017-03-24 | 2017-07-11 | 王跃栋 | A kind of air supporting side activated glass tempering furnace |
| CN206619645U (en) * | 2017-02-18 | 2017-11-07 | 江西迪比科股份有限公司 | A kind of electric automobile lithium battery pole piece air-flotation type guides Scissoring device |
| CN109626074A (en) * | 2019-01-21 | 2019-04-16 | 深圳市信宇人科技股份有限公司 | Air-flotation type rotary conveying mechanism |
| CN208839910U (en) * | 2018-09-11 | 2019-05-10 | 佛山市金银河智能装备股份有限公司 | A kind of unicoater |
| CN211197995U (en) * | 2019-12-10 | 2020-08-07 | 武汉新中德塑机股份有限公司 | Upper rotating air floating roller |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102095447B1 (en) * | 2019-01-12 | 2020-03-31 | (주)디아이비 | Floating roller with air damper |
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2021
- 2021-01-18 CN CN202110059139.3A patent/CN112354816B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557701A (en) * | 2013-11-18 | 2014-02-05 | 北京金晟阳光科技有限公司 | Air-floating roller bed type thermal treatment furnace for semiconductor devices |
| CN205258058U (en) * | 2015-11-30 | 2016-05-25 | 无锡工源机械有限公司 | Air supporting device with housing |
| CN206619645U (en) * | 2017-02-18 | 2017-11-07 | 江西迪比科股份有限公司 | A kind of electric automobile lithium battery pole piece air-flotation type guides Scissoring device |
| CN106938883A (en) * | 2017-03-24 | 2017-07-11 | 王跃栋 | A kind of air supporting side activated glass tempering furnace |
| CN208839910U (en) * | 2018-09-11 | 2019-05-10 | 佛山市金银河智能装备股份有限公司 | A kind of unicoater |
| CN109626074A (en) * | 2019-01-21 | 2019-04-16 | 深圳市信宇人科技股份有限公司 | Air-flotation type rotary conveying mechanism |
| CN211197995U (en) * | 2019-12-10 | 2020-08-07 | 武汉新中德塑机股份有限公司 | Upper rotating air floating roller |
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| CN112354816A (en) | 2021-02-12 |
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