CN113714027A - Gravure roller coating defoaming device - Google Patents
Gravure roller coating defoaming device Download PDFInfo
- Publication number
- CN113714027A CN113714027A CN202111085944.XA CN202111085944A CN113714027A CN 113714027 A CN113714027 A CN 113714027A CN 202111085944 A CN202111085944 A CN 202111085944A CN 113714027 A CN113714027 A CN 113714027A
- Authority
- CN
- China
- Prior art keywords
- scraper
- vacuum
- lower scraper
- gravure roll
- defoaming device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
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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
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
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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
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
- B05C1/0817—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for removing partially liquid or other fluent material from the roller, e.g. scrapers
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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
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Coating Apparatus (AREA)
Abstract
The invention discloses a gravure roller coating defoaming device which comprises a material box, wherein slurry is filled in the middle of the interior of the material box, an inner groove is formed in one side of the material box, a gravure roller is installed in the inner groove, an upper scraper is installed above the inner groove, a lower scraper is installed below the inner groove, the lower scraper comprises an inner lower scraper and an outer lower scraper, a closed space gap is reserved between the inner lower scraper and the outer lower scraper, vacuum sealing plates are arranged at two ends of the closed space gap, and air in the closed space is extracted through a vacuum fan to form vacuum. The problem of serious foam of slurry return in the coating process of the gravure roller is solved by adopting a double-layer lower scraper and a lower scraper interlayer vacuumizing technology, an extra defoaming tank body is not needed, and the long time for standing and defoaming of the slurry is avoided; the invention can realize the recycling of the slurry and avoid the waste of the slurry caused by foam.
Description
Technical Field
The invention relates to a gravure roller coating defoaming device, and belongs to the field of lithium battery diaphragm production and manufacturing.
Background
In the coating operation, a coating roll is generally used for coating operation, and the principle of the coating operation is that the coating roll is immersed in glue solution in a glue tank to rotate, a part of the glue solution is adhered to the surface of the roll and rotates along with the roll, then a scraper is used for removing the redundant glue solution on the roll, and then the glue solution with preset thickness or quantity on the roll is coated on a base material.
At present, in the process of coating a gravure roller diaphragm, foams are generated from returned materials of a material box, and the foams are generated because air is entrained into the material box by a mesh hole after the gravure roller is coated, and the air is mixed with slurry in the material box to form bubbles. If the slurry with foam is used for coating, dense bright spots and black spots can occur after coating, so that the problems of low battery resistance and the like are caused; therefore, if the return foam can not be defoamed, the slurry can not be reused, which can lead to the waste of a large amount of finished slurry.
The existing method for solving the problem of foam of the returned slurry of the material box is to collect the returned slurry with serious foam in a vacuum tank and realize the defoaming of the returned slurry with foam by vacuumizing the vacuum tank. The device mainly comprises a vacuum tank, a vacuum pump and a set of vacuumizing connecting pipelines. The method has the disadvantages of complicated procedure, inconvenient use, space occupation and high operation cost.
Disclosure of Invention
The invention aims to provide a gravure roller coating defoaming device, which solves the problem of serious slurry return foam in the gravure roller coating process by adopting a double-layer lower scraper and a vacuumizing technology, does not need an additional defoaming tank body, and avoids long slurry standing defoaming waiting time.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a gravure roller coating fire fighting equipment, includes the magazine, inside middle part of magazine and inside are full of thick liquids, one side of magazine is provided with the inner groovy, be used for installing gravure roller in the inner groovy to the scraper is installed to the top of inner groovy, and the scraper is installed down to the below of inner groovy, the scraper includes scraper and outside scraper down under the inboard, leave inclosed space clearance under inboard scraper and the outside between the scraper, this inclosed space clearance is in the vacuum state.
In a further preferred embodiment of the present invention, side sealing plates are provided at the left and right ends of the magazine, and the side sealing plates are used to seal both ends of the magazine and the gravure roller.
Preferably, the inner lower scraper and the outer lower scraper are provided with vacuum sealing plates at two ends, and the vacuum sealing plates, the inner lower scraper, the outer lower scraper and the surface of the gravure roller form a closed space together.
Preferably, the sealed space is evacuated by a vacuum fan, and the vacuum fan is communicated with the sealed space through a vacuum hose.
Preferably, one end of the vacuum hose is connected to the vacuum blower, the other end of the vacuum hose passes through one of the vacuum sealing plates to communicate with the enclosed space, and the joint between the end and the vacuum sealing plate is sealed.
As a further preferable mode of the present invention, an upper scraper cover plate is disposed on an outer side of the upper scraper, and the upper scraper is fixed to the material box through the upper scraper cover plate.
As a further preferable mode of the present invention, a lower scraper cover plate is disposed on an outer side of the outer lower scraper and fixed by the lower scraper cover plate.
As a further optimization of the scheme, a cushion block is arranged between the inner lower scraper and the outer lower scraper, the inner lower scraper and the outer lower scraper are separated and sealed through the cushion block and the vacuum sealing plate, and an opening is formed in the vacuum sealing plate on one side of the inner lower scraper and the outer lower scraper, so that a path is provided for air suction.
The invention has the beneficial effects that: the invention adopts a double-layer lower scraper and a lower scraper interlayer vacuumizing technology to solve the problem of serious foam of slurry return in the gravure roller coating process, an additional defoaming tank body is not needed, and the long time for standing and defoaming of the slurry is avoided.
In addition, the slurry can be directly recycled, and the waste of the slurry caused by foam is avoided.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a double layer under-doctor blade of the present invention;
fig. 3 is a working principle diagram of the present invention.
Labeled as: 1-material box, 2-upper scraper, 3-inner lower scraper, 4-outer lower scraper, 5-upper scraper cover plate, 6-lower scraper cover plate, 7-side sealing plate, 8-vacuum sealing plate, 9-vacuum fan, 10-vacuum hose, 11-cushion block, 12-gravure roller, 13-back roller and 14-film substrate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the present invention provides an embodiment: the utility model provides a gravure roller coating fire fighting equipment, includes magazine 1, 1 inside middle part of magazine and inside are full of thick liquids, one side of magazine 1 is provided with the inner groovy, be used for installing gravure roller 12 in the inner groovy to scraper 2 is installed to the top of inner groovy, and scraper 4 under the below of inner groovy is installed, scraper 3 and outside scraper 4 under including inboard down, leave inclosed space clearance under inboard scraper 3 and the outside between scraper 4, this inclosed space clearance is in vacuum state.
In this embodiment, side sealing plates 7 are provided at the left and right ends of the magazine 1, and the side sealing plates 7 are used to seal the magazine 1 and the ends of the gravure roll and prevent the coating slurry in the magazine 1 from leaking.
In this embodiment, vacuum sealing plates 8 are disposed at two ends of the inner lower scraper 3 and the outer lower scraper 4, and the surfaces of the vacuum sealing plates 8, the inner lower scraper 3, the outer lower scraper 4 and the gravure roll 12 together form a closed space. And the air is pumped by the vacuum fan 9 to form vacuum, the vacuum fan 9 is communicated with the closed space through a vacuum hose 10, one end of the vacuum hose 10 is connected with the vacuum fan 9, the other end of the vacuum hose passes through one of the vacuum sealing plates 8 to be communicated with the closed space, and the joint of the end and the vacuum sealing plate 8 is in sealed connection.
In this embodiment, the outer side 2 of the upper scraper is provided with an upper scraper cover plate 5, and the upper scraper cover plate 5 is fixed on the material box 1. And a lower scraper cover plate 6 is arranged on the outer side of the outer lower scraper 4 and is fixed through the lower scraper cover plate 6.
In this embodiment, a cushion block 11 is disposed between the inner scraper 3 and the outer scraper 4, the inner scraper 3 and the outer scraper 4 are separated and sealed by the cushion block 11 and the vacuum sealing plate 8, and an opening is formed in the vacuum sealing plate 8 on one side of the inner scraper 3 and the outer scraper 4, so as to provide a path for air suction.
As shown in FIG. 3, the working process of the invention is as follows: one side of the gravure roller is soaked in the slurry, and the other side of the gravure roller is contacted with a film substrate to be coated under the coordination of a back roller; during the rotation of the gravure roller, the upper scraper on the upper side uniformly scrapes slurry on the surface of the gravure roller, then the slurry adhered to the surface of the gravure roller is coated on the film substrate along with the rotation, and then the slurry enters a closed space formed by the inner lower scraper, the outer lower scraper, the side sealing plate and the surface of the gravure roller along with the continuous rotation, and most of air in a grid hole on the surface of the gravure roller is pumped out due to the fact that the air is pumped into the vacuum by the fan, so that air can be prevented from entering the material box and causing bubbles.
In addition, in fig. 3, in order to highlight the cells on the surface of the gravure roll, the cells are drawn slightly larger, and in practice, the cells are not as large as those shown in the drawing.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a gravure roller coating fire fighting equipment, includes the magazine, inside middle part of magazine and inside are full of thick liquids, a serial communication port, one side of magazine is provided with the inner groovy, be used for installing gravure roller in the inner groovy to the scraper is installed to the top of inner groovy, and the scraper is installed down to the below of inner groovy, the scraper is gone up in scraper and the outside under including inboard down, leave inclosed space clearance under inboard scraper and the outside between the scraper, this inclosed space clearance is in vacuum state.
2. The gravure roll coating defoaming device according to claim 1, wherein side sealing plates are provided at left and right ends of the magazine, and the side sealing plates are used for sealing both ends of the magazine and the gravure roll.
3. The gravure roll coating defoaming device according to claim 1, wherein vacuum sealing plates are arranged at two ends of the inner lower scraper and the outer lower scraper, and the vacuum sealing plates, the inner lower scraper, the outer lower scraper and the surface of the gravure roll together form a closed space.
4. The gravure roll coating defoaming device according to claim 3, wherein the closed space is vacuumized by a vacuum fan which is communicated with the closed space through a vacuum hose.
5. The gravure roll coating defoaming device as claimed in claim 4, wherein one end of the vacuum hose is connected with a vacuum fan, the other end of the vacuum hose passes through one of the vacuum sealing plates to communicate with the enclosed space, and the joint of the end and the vacuum sealing plate is hermetically connected.
6. The gravure roll coating defoaming device according to claim 1, wherein an upper scraper cover plate is arranged on the outer side of the upper scraper and is fixed on the material box through the upper scraper cover plate.
7. The gravure roll coating defoaming device according to claim 1, wherein a lower scraper cover plate is arranged on the outer side of the outer lower scraper and is fixed by the lower scraper cover plate.
8. The gravure roll coating defoaming device according to claim 1, wherein a cushion block is arranged between the inner lower blade and the outer lower blade, the inner lower blade and the outer lower blade are separated and sealed by the cushion block and the vacuum sealing plate, and the vacuum sealing plate on one side is provided with an opening to provide a path for air suction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085944.XA CN113714027B (en) | 2021-09-16 | 2021-09-16 | Gravure roller coating defoaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111085944.XA CN113714027B (en) | 2021-09-16 | 2021-09-16 | Gravure roller coating defoaming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113714027A true CN113714027A (en) | 2021-11-30 |
| CN113714027B CN113714027B (en) | 2022-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111085944.XA Active CN113714027B (en) | 2021-09-16 | 2021-09-16 | Gravure roller coating defoaming device |
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| Country | Link |
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| CN (1) | CN113714027B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472059A (en) * | 2022-02-10 | 2022-05-13 | 枣庄学院 | Device for preventing tiny foam in diaphragm coating process from generating |
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| CN212124489U (en) * | 2020-03-04 | 2020-12-11 | 江苏中金玛泰医药包装有限公司 | Gravure printing device with ink delivery device |
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| JP2003236429A (en) * | 2002-02-18 | 2003-08-26 | Okazaki Kikai Kogyo Kk | Peripheral surface immersion type gravure coater |
| JP2003340335A (en) * | 2002-05-27 | 2003-12-02 | Okazaki Kikai Kogyo Kk | Peripheral face soaking-type gravure coater |
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| Publication number | Publication date |
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| CN113714027B (en) | 2022-09-20 |
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