CN106746717B - Cleaning device and PI liquid coating equipment - Google Patents
Cleaning device and PI liquid coating equipment Download PDFInfo
- Publication number
- CN106746717B CN106746717B CN201710002167.5A CN201710002167A CN106746717B CN 106746717 B CN106746717 B CN 106746717B CN 201710002167 A CN201710002167 A CN 201710002167A CN 106746717 B CN106746717 B CN 106746717B
- Authority
- CN
- China
- Prior art keywords
- liquid
- roller
- cleaning device
- supply channel
- liquid supply
- 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.)
- Expired - Fee Related
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 167
- 238000000576 coating method Methods 0.000 title claims abstract description 57
- 239000011248 coating agent Substances 0.000 title claims abstract description 56
- 238000004140 cleaning Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 239000004642 Polyimide Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- 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
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
-
- 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
- B05C11/1039—Recovery of excess liquid or other fluent material; Controlling means therefor
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/001—General methods for coating; Devices therefor
- C03C17/002—General methods for coating; Devices therefor for flat glass, e.g. float glass
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
- C03C17/28—Surface treatment of glass, not in the form of fibres or filaments, by coating with organic material
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/10—Deposition methods
- C03C2218/11—Deposition methods from solutions or suspensions
- C03C2218/114—Deposition methods from solutions or suspensions by brushing, pouring or doctorblading
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Coating Apparatus (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
Disclosed herein are a cleaning device and a PI liquid coating apparatus, the cleaning device including: the roller is provided with a shaft hole, the surface of the roller is provided with a plurality of slotted holes, the slotted holes are sequentially arranged in the circumferential direction of the roller, and the slotted holes are communicated with the shaft hole; and the mounting shaft is provided with a liquid supply channel, the mounting shaft penetrates into the shaft hole, the roller can rotate around the mounting shaft, the liquid supply channel is provided with a liquid inlet and a liquid outlet which are communicated, the liquid inlet of the liquid supply channel is used for communicating a liquid supply pipeline, and the liquid outlet of the liquid supply channel can be communicated with the slotted hole in the rotating process of the roller. The cleaning device provided by the invention can effectively remove the residual PI liquid on the outer end surface of the PI liquid coating knife liquid outlet, and simultaneously reduces the abrasion to the PI liquid coating knife when removing the PI liquid, so that the service life of the PI liquid coating knife is effectively prolonged while the normal operation of the PI liquid coating knife is ensured.
Description
Technical Field
The present disclosure relates to coating technologies in the display field, and more particularly, to a cleaning device and a PI solution coating apparatus.
Background
The flexible display has the characteristics of lightness, thinness, impact resistance and flexibility, and opens a new hot application of the display. In the flexible display technology, the PI coating process is a very critical step of the flexible display technology (which is performed by coating a PI solution (polyimide solution) on a glass substrate).
In order to avoid coagulation of the PI solution on the PI solution coating blade, it is necessary to continuously drip the PI solution. After the operation is finished, the PI liquid remains on the outer end face of the liquid outlet of the PI liquid coating knife, and if the residue (the residual PI liquid) cannot be effectively cleaned, poor coating at the beginning of the next operation is caused, so that the formed PI film is poor.
The cleaning device adopted on the existing equipment is a V-shaped plastic scraper, and when the plastic scraper is used for cleaning, PI liquid is easy to accumulate on the scraper and can be transferred to a PI liquid coating knife after being accumulated for a long time, so that the PI liquid coating knife cannot be thoroughly cleaned; and the plastic scraper is in sliding friction with the PI liquid coating knife in the process of cleaning the PI liquid, so that the plastic scraper and the PI liquid coating knife need to be replaced periodically due to abrasion after being used for a certain time.
Disclosure of Invention
In order to solve at least one of the above technical problems, a cleaning device is provided herein, which can more effectively remove the PI liquid remaining on the outer end surface of the liquid outlet of the PI liquid coating knife, and at the same time reduce the wear on the PI liquid coating knife when removing the PI liquid, so as to effectively prolong the service life of the PI liquid coating knife while ensuring the normal operation of the PI liquid coating knife.
To achieve the object herein, there is provided a cleaning device comprising: the roller is provided with a shaft hole, the surface of the roller is provided with a plurality of slotted holes, the slotted holes are sequentially arranged in the circumferential direction of the roller, and the slotted holes are communicated with the shaft hole; and the mounting shaft is provided with a liquid supply channel, the mounting shaft penetrates in the shaft hole, the roller can rotate around the mounting shaft, the liquid supply channel is provided with a liquid inlet and a liquid outlet which are communicated, the liquid inlet of the liquid supply channel is used for communicating a liquid supply pipeline, and the liquid outlet of the liquid supply channel can be communicated with the slotted hole in the rotating process of the roller.
Optionally, the cleaning device further comprises: the liquid supply channel is arranged at one end of the installation shaft, and one end of the liquid supply channel is connected to one end of the installation shaft so as to be communicated with the liquid inlet of the liquid supply channel.
Optionally, the cleaning device further comprises: and the supporting rod is arranged along the radial direction of the roller, and one end of the supporting rod close to the roller is connected with the other end of the mounting shaft.
Optionally, the number of the plurality of slots is six, and the six slots are uniformly distributed in the circumferential direction of the roller.
Optionally, the plurality of slotted holes are all elongated holes arranged along the axial direction of the roller.
Optionally, two ends of the roller are formed with protruding limiting flanges along the circumferential direction, and the slot is located on the surface of the roller between the two limiting flanges.
Optionally, the shape of the groove structure enclosed between the two limiting flanges is matched with the shape of the liquid outlet end of the PI liquid coating knife.
Optionally, the liquid outlet of the liquid supply channel is an elongated hole formed in the side surface of the mounting shaft.
The invention also provides PI liquid coating equipment which comprises the cleaning device in any embodiment, and the cleaning device is used for cleaning the PI liquid coating knife.
Compared with the prior art, according to the cleaning device provided by the invention, when the roller rolls along the outer end face of the liquid outlet of the PI liquid coating knife, PI liquid remained on the outer end face of the liquid outlet of the PI liquid coating knife enters the groove hole moving to the upper part and is attached to the surface of the roller moving to the upper part, and when the corresponding groove hole rotates to the position of the liquid outlet of the liquid supply channel, cleaning liquid supplied into the liquid supply channel is supplied into the groove hole from the liquid outlet of the liquid supply channel, so that the PI liquid on the surfaces of the roller in the groove hole and near the groove hole is driven to be left. The residual PI liquid on the outer end face of the PI liquid coating knife liquid outlet is removed in the mode, meanwhile, the abrasion between the roller and the PI liquid coating knife is reduced in a rolling friction mode, and the service life of the PI liquid coating knife is effectively prolonged.
Preferably, the cleaning solution is methyl pyrrolidone (NMP) and the PI solution is polyimide.
Additional features and advantages of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the disclosure. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the embodiments herein and are incorporated in and constitute a part of this specification, illustrate embodiments herein and are not to be construed as limiting the embodiments herein.
Fig. 1 and 2 are schematic structural views of a PI liquid coating knife described in the present application;
FIG. 3 is a schematic view of a cleaning device according to an embodiment of the present invention;
FIG. 4 is a schematic assembled view of the mounting shaft and the support rod of FIG. 3;
FIG. 5 is a schematic cross-sectional view of the right side view of the cleaning device shown in FIG. 3;
FIG. 6 is a schematic cross-sectional view of the top view of the cleaning apparatus shown in FIG. 3;
fig. 7 is a schematic structural view of the PI liquid coating knife and the cleaning device shown in fig. 1 in a use state.
Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 7 is:
the device comprises a roller 1, a slotted hole 11, a limiting flange 12, a mounting shaft 2, a liquid inlet 21, a liquid outlet 22, a liquid supply pipeline 3, a supporting rod 4 and a liquid coating knife 5.
Detailed Description
To make the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, however, the present disclosure may be practiced otherwise than as specifically described herein, and thus the scope of the present disclosure is not limited by the specific embodiments disclosed below.
The cleaning device and the PI liquid coating apparatus according to some embodiments herein are described below with reference to the drawings.
The cleaning device provided herein, as shown in fig. 1 to 7, comprises: the roller comprises a roller 1 with a shaft hole (see fig. 5 in particular), wherein the surface of the roller 1 is provided with a plurality of slotted holes 11, the slotted holes 11 are sequentially arranged in the circumferential direction of the roller 1, and the slotted holes 11 are communicated with the shaft hole; and a mounting shaft 2 (see fig. 4 and 6 for details) having a liquid supply channel, which is inserted into the shaft hole, the roller 1 can rotate around the mounting shaft 2, the liquid supply channel has a liquid inlet 21 and a liquid outlet 22 which are communicated, the liquid inlet 21 of the liquid supply channel is used for communicating the liquid supply pipeline 3 (see fig. 3 and 7 for details), and the liquid outlet 22 of the liquid supply channel can be communicated with the slot hole 11 in the process of the rotation of the roller 1.
When the roller 1 rolls along the outer end face of the liquid outlet 22 of the PI liquid coating knife 5, PI liquid remained on the outer end face of the liquid outlet 22 of the PI liquid coating knife 5 enters the groove hole 11 moving to the upper part and adheres to the surface of the roller 1 moving to the upper part, and when the corresponding groove hole 11 rotates to the position of the liquid outlet 22 of the liquid supply channel, cleaning liquid supplied into the liquid supply channel is supplied into the groove hole 11 from the liquid outlet 22 of the liquid supply channel, so that the PI liquid in the groove hole 11 and on the surface of the roller 1 near the groove hole 11 is driven to be remained. The residual PI liquid on the outer end surface of the liquid outlet 22 of the PI liquid coating knife 5 is removed in the mode, meanwhile, the abrasion between the roller 1 and the PI liquid coating knife 5 is reduced in a rolling friction mode, and the service life of the PI liquid coating knife 5 is effectively prolonged.
Optionally, as shown in fig. 3, the cleaning device further comprises: the liquid supply pipeline 3 is provided with a liquid inlet 21 positioned at one end of the mounting shaft 2, and one end of the liquid supply pipeline 3 is connected at one end of the mounting shaft 2 so as to be communicated with the liquid inlet 21 of the liquid supply channel.
The liquid supply pipeline 3 can be made into a hard pipe, and the position of the roller 1 can be fixed without arranging a supporting rod 4 structure.
Optionally, as shown in fig. 3 and 4, the cleaning device further includes: along the bracing piece 4 that the radial direction of gyro wheel 1 set up, the one end that closes on gyro wheel 1 of bracing piece 4 is connected with the other end of installation axle 2.
The position of the roller 1 is fixed by the support rod 4, the liquid supply pipeline 3 can be a hard pipe or a soft pipe, and the purpose of the application can be achieved.
Optionally, the number of the slots 11 is six, and the six slots 11 are uniformly distributed in the circumferential direction of the roller 1.
In order to better remove the PI solution, the number of the slots 11 may be four, five, seven, eight, or nine, etc. (the larger the number is, the better the PI solution removal effect is), all of which can achieve the purpose of the present application, and the purpose thereof does not depart from the design concept of the present invention, and will not be described herein again, and all of which shall fall within the protection scope of the present application.
Specifically, the plurality of slots 11 are elongated holes arranged along the axial direction of the roller 1, and the liquid outlet 22 of the liquid supply channel is an elongated hole formed on the side surface of the mounting shaft 2.
The elongated holes can be rectangular holes, kidney-shaped holes and the like.
Optionally, as shown in fig. 3, 5 and 6, two ends of the roller 1 are formed with protruding limiting ribs 12 outward along the circumferential direction, the slot 11 is located on the surface of the roller 1 between the two limiting ribs 12, and the shape of the slot structure enclosed between the two limiting ribs 12 matches with the shape of the liquid outlet end of the PI liquid coating knife 5, so as to play a role of guiding in the process of matching with the PI liquid coating knife 5, and better achieve removal of the PI liquid on the PI liquid coating knife 5.
As shown in fig. 7, the PI liquid coating apparatus provided by the present invention includes the cleaning device according to any one of the above embodiments, and the cleaning device is used for cleaning the PI liquid coating blade 5 (see fig. 1 and fig. 2 in particular).
The PI liquid coating apparatus provided by the present invention has all the advantages of the cleaning device described in any of the above embodiments, and is not described herein again.
Wherein the cleaning solution is methyl pyrrolidone (NMP), and the PI solution is polyimide.
In summary, according to the cleaning device provided by the present invention, when the roller rolls along the outer end surface of the liquid outlet of the PI liquid coating knife, the PI liquid remaining on the outer end surface of the liquid outlet of the PI liquid coating knife enters the slot moving upward and adheres to the surface of the roller moving upward, and when the corresponding slot rotates to the position of the liquid outlet of the liquid supply channel, the cleaning liquid supplied into the liquid supply channel is supplied into the slot from the liquid outlet of the liquid supply channel, and the PI liquid in the slot and on the surface of the roller near the slot is driven to remain. The residual PI liquid on the outer end face of the PI liquid coating knife liquid outlet is removed in the mode, meanwhile, the abrasion between the roller and the PI liquid coating knife is reduced in a rolling friction mode, and the service life of the PI liquid coating knife is effectively prolonged.
In the description herein, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., "connected" may be a fixed connection, a removable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms herein can be understood by those of ordinary skill in the art as appropriate.
In the description of the specification, reference to the term "one embodiment," "some embodiments," "a specific embodiment," or the like, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example herein. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although the embodiments disclosed herein are described above, the descriptions are only for the convenience of understanding the embodiments and are not intended to limit the disclosure. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure, and that the scope of the disclosure herein may be limited only by the appended claims.
Claims (9)
1. A cleaning device, comprising:
the roller is provided with a shaft hole, the surface of the roller is provided with a plurality of slotted holes, the slotted holes are sequentially arranged in the circumferential direction of the roller, and the slotted holes are communicated with the shaft hole; and
the roller wheel can rotate around the mounting shaft, the liquid supply channel is provided with a liquid inlet and a liquid outlet which are communicated, the liquid inlet of the liquid supply channel is used for being communicated with a liquid supply pipeline, and the liquid outlet of the liquid supply channel can be communicated with the slotted hole in the rotating process of the roller wheel;
the roller is used for collecting the residual coating liquid on the outer end face of the liquid outlet of the coating knife to be cleaned in the slotted hole when rolling along the outer end face of the liquid outlet of the coating knife to be cleaned, so that when the roller rotates to enable the slotted hole to be communicated with the liquid outlet of the liquid supply channel, the cleaning liquid supplied into the liquid supply channel enters the slotted hole from the liquid outlet of the liquid supply channel and drives the coating liquid in the slotted hole to flow out.
2. The cleaning device of claim 1, further comprising:
the liquid supply channel is arranged at one end of the installation shaft, and one end of the liquid supply channel is connected to one end of the installation shaft so as to be communicated with the liquid inlet of the liquid supply channel.
3. The cleaning device of claim 2, further comprising:
and the supporting rod is arranged along the radial direction of the roller, and one end of the supporting rod close to the roller is connected with the other end of the mounting shaft.
4. The cleaning device as claimed in any one of claims 1 to 3, wherein the number of the plurality of slots is six, and the six slots are arranged uniformly in the circumferential direction of the roller.
5. The cleaning device as claimed in any one of claims 1 to 3, wherein each of the plurality of slots is an elongated hole provided along an axial direction of the roller.
6. The cleaning device as claimed in any one of claims 1 to 3, wherein both ends of the roller are formed with a protruding stopper rib outwardly in the circumferential direction, and the slot is located on the surface of the roller between the stopper ribs.
7. The cleaning device as claimed in claim 6, wherein the shape of the groove structure enclosed between the two limiting flanges is matched with the shape of the liquid outlet end of the PI liquid coating knife to be cleaned.
8. The cleaning device as claimed in any one of claims 1 to 3, wherein the liquid outlet of the liquid supply channel is an elongated hole formed on the side surface of the mounting shaft.
9. A PI liquid coating apparatus comprising the cleaning device according to any one of claims 1 to 8, the cleaning device being for cleaning a PI liquid coating blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002167.5A CN106746717B (en) | 2017-01-03 | 2017-01-03 | Cleaning device and PI liquid coating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710002167.5A CN106746717B (en) | 2017-01-03 | 2017-01-03 | Cleaning device and PI liquid coating equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106746717A CN106746717A (en) | 2017-05-31 |
| CN106746717B true CN106746717B (en) | 2020-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710002167.5A Expired - Fee Related CN106746717B (en) | 2017-01-03 | 2017-01-03 | Cleaning device and PI liquid coating equipment |
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| Country | Link |
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| CN (1) | CN106746717B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6824673B2 (en) * | 2016-09-13 | 2021-02-03 | 株式会社Ｓｃｒｅｅｎホールディングス | Nozzle cleaning member, nozzle cleaning device, coating device |
| CN107442336A (en) * | 2017-09-12 | 2017-12-08 | 深圳市华星光电技术有限公司 | A kind of cleaning device and cleaning method of coating machine shower nozzle |
| CN112010133A (en) * | 2020-09-29 | 2020-12-01 | 广东西子机电设备有限公司 | Convenient-to-transport cable bundling device for elevator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785419A (en) * | 2015-05-12 | 2015-07-22 | 江苏锦润光电有限公司 | PI (polyimide) coating device |
| CN106238281A (en) * | 2016-09-30 | 2016-12-21 | 海南庆禾钢结构设计咨询有限公司 | A kind of applicator of continuous liquid supply work |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858112B (en) * | 2015-06-15 | 2018-05-01 | 杭州沈大侠装饰设计工程有限公司 | Orientation feed top coat rotary broom |
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2017
- 2017-01-03 CN CN201710002167.5A patent/CN106746717B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104785419A (en) * | 2015-05-12 | 2015-07-22 | 江苏锦润光电有限公司 | PI (polyimide) coating device |
| CN106238281A (en) * | 2016-09-30 | 2016-12-21 | 海南庆禾钢结构设计咨询有限公司 | A kind of applicator of continuous liquid supply work |
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| CN106746717A (en) | 2017-05-31 |
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Granted publication date: 20200605 |