CN203170229U - Coating film scraping machine - Google Patents
Coating film scraping machine Download PDFInfo
- Publication number
- CN203170229U CN203170229U CN 201320194490 CN201320194490U CN203170229U CN 203170229 U CN203170229 U CN 203170229U CN 201320194490 CN201320194490 CN 201320194490 CN 201320194490 U CN201320194490 U CN 201320194490U CN 203170229 U CN203170229 U CN 203170229U
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- China
- Prior art keywords
- base plate
- coagulating tank
- knifing machine
- plate supports
- machine according
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Abstract
The utility model discloses a coating film scraping machine. The coating film scraping machine comprises a coating head, a fixing device and a coagulating bath groove. The coating head is arranged above the coagulating bath groove through the fixing device; the coagulating bath groove is internally provided with a winding device; and the coating head comprises a material groove, a base plate supporting roller and a scraper. A discharging opening is arranged at the bottom of the material groove; one base plate supporting roller with a molded surface structure is arranged below the discharging opening; the adjustable scraper is arranged at the front end of the discharging opening. By adopting the base plate supporting roller with the molded surface structure, the contact area between a base material and the base plate supporting roller is reduced, the contact time is shortened and the leakage amount of material liquid in the base material is further reduced; the base plate supporting roller does not rotate along the base material in a working process so that the scraping degree is guaranteed.
Description
Technical field
The utility model relates to the film preparation field, particularly a kind of coating knifing machine.
Background technology
Traditional casting film method is that flat board is scraped method for making, is about to the feed liquid curtain coating on a flat board or porous carrier, forms the feed liquid layer through doctor blade, becomes required diffusion barrier through condition gel solidifications such as heat, air, water again.In early days, this process realizes by manual operations, but manual production efficiency is low, the gained film in uneven thickness, surface smoothness is poor, unstable product quality.Afterwards, people had developed the knifing machine of mechanization, were about to into film base material such as paper substrate, nonwoven etc., inputed in the knifing machine, finished its surperficial coating operation in the continuous motion process of base material.
In the prior art, knifing machine mainly is divided into two kinds by substrate, and a kind of is that substrate is the slewing circle roller, and base material moves with the rotation of substrate, in this case, because substrate rotates, can not guarantee to scrape Pingdu, and the even phenomenon of non-uniform film thickness takes place easily; Another kind is that substrate is dull and stereotyped, and substrate fixedly installs, because substrate maintains static, it is scraped Pingdu and has obtained bigger raising.Above-mentioned two kinds of knifing machines are because base material is longer with the substrate contacts time in motion process, and when using porous substrate, feed liquid is bigger to the leakage in the porous substrate, sometimes even two-sided film forming, cause telolemma properties of product instability.
Therefore, how to provide a kind of knifing machine, it is scraped on the basis of Pingdu in assurance, reduce the time of contact of base material and substrate, and then reduce leakage, become the important technological problems that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, the utility model provides a kind of coating knifing machine, so that it is guaranteeing to scrape on the basis of Pingdu the time of contact of minimizing base material and substrate, and then minimizing leakage.
For achieving the above object, the utility model provides following technical scheme:
A kind of coating knifing machine comprises dispense tip, fixture and coagulating tank, and described dispense tip is arranged at the top of described coagulating tank by described fixture, is provided with the wrap-up for the rolling base material in the described coagulating tank;
Described dispense tip comprises:
The bottom is provided with the hopper of discharging opening;
Be positioned at the base plate supports roller of described discharging opening below, described base plate supports roller is the profile structure;
The adjustable front end that is arranged at described discharging opening of scraper.
Preferably, described fixture is climatic chamber, and described dispense tip is installed in the described climatic chamber, and described climatic chamber is communicated with described coagulating tank, and described coagulating tank top is provided with top cover, forms enclosed construction.
Preferably, two relative limits of the cross section of described base plate supports roller are circular arc, and two limits are parallel straight line in addition.
Preferably, the cross section of described base plate supports roller combines about centrosymmetric figure by two, described figure is semicircle along perpendicular to the diameter of described semicircle and be shorter than the bigger figure of area that obtains after the straight cuts of radius of described semicircle, and described two symmetrical centre about centrosymmetric figure are the center of circle of described semicircle.
Preferably, the end of described base plate supports roller is provided with adjusting knob, is used for regulating the contact area of described base material and described base plate supports roller.
Preferably, the surface roughness Ra of described base plate supports roller≤0.01 μ m.
Preferably, the rear portion of described discharging opening also is provided with the dust arrester of bleeding.
Preferably, the rear wall of described hopper is connected with two sidewalls of described hopper by screw knob.
Preferably, described wrap-up comprises a plurality of slewing rollers, constitutes multi-turn and entad coils structure.
Preferably, be provided with the coagulating tank dividing plate in the described coagulating tank, described coagulating tank dividing plate bottom clamps by two mobile backing rolls, described mobile backing roll can be along described coagulating tank horizontal slip, leaves the gap between the bottom of described two mobile backing rolls and the described coagulating tank bottom.
Preferably, be provided with the feed liquid agitating device in the described coagulating tank.
This shows that the coating knifing machine that the utility model provides comprises dispense tip, fixture and coagulating tank, dispense tip is arranged at the coagulating tank top by fixture, is provided with the wrap-up for the rolling base material in the coagulating tank; Dispense tip comprises that the bottom is provided with the hopper of discharging opening, is positioned at the base plate supports roller that the discharging opening below has the profile structure, adjustable scraper that is arranged at the discharging opening front end.The base plate supports roller is the profile structure, has reduced the contact area of base material and base plate supports roller, has shortened time of contact, and then has reduced leakage, and does not rotate with the movement of base material in the base plate supports roller course of work, has guaranteed to scrape Pingdu.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the coating knifing machine that Fig. 1 provides for a kind of embodiment of the utility model;
The structural representation of the base plate supports roller of the coating knifing machine that Fig. 2 provides for a kind of embodiment of the utility model;
The structural representation of the base plate supports roller of the coating knifing machine that Fig. 3 provides for the another kind of embodiment of the utility model.
The specific embodiment
The utility model provides a kind of coating knifing machine, so that it is guaranteeing to scrape on the basis of Pingdu the time of contact of minimizing base material and substrate, and then minimizing leakage.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 1, the structural representation of the coating knifing machine that Fig. 1 provides for a kind of embodiment of the utility model.
A kind of coating knifing machine that the utility model provides comprises dispense tip 1, fixture 2 and coagulating tank 3.
Dispense tip 1 is arranged at coagulating tank 3 tops by fixture 2, is provided with the wrap-up 4 for the rolling base material in the coagulating tank 3; Dispense tip 1 comprises that the bottom is provided with the hopper 11 of discharging opening, is positioned at the base plate supports roller 12 that the discharging opening below has the profile structure, adjustable scraper 13 that is arranged at the discharging opening front end.
Compared with prior art, the coating knifing machine that the utility model provides, employing has the base plate supports roller 12 of profile structure, reduced the contact area between base plate supports roller 12 and the base material, and then reduced time of contact between base plate supports roller 12 and the base material, reduced the leakage of feed liquid, base plate supports roller 12 does not rotate with the motion of base material in the course of the work simultaneously, has guaranteed to scrape Pingdu.
Because external environment condition, as temperature, humidity, air flows etc., influence to nascent liquid film layer is bigger, cause the unstable properties of product easily, at present when casting film is produced, can select laboratory or the factory building of a constant temperature and humidity to produce, to reduce external environment condition to the influence of nascent liquid film layer, but the laboratory of constant temperature and humidity and factory building are difficult for realizing, and implementation procedure is slowly complicated, so among the utility model embodiment fixture 2 is arranged to climatic chamber, dispense tip 1 is installed in the climatic chamber, and climatic chamber is communicated with coagulating tank 3, coagulating tank 3 tops are provided with top cover, form enclosed construction, coagulating tank 3 and climatic chamber and external environment condition are separated.When producing, only need the environment in the control climatic chamber get final product, the saving energy, speed is fast and easy to use.
In order to reduce the contact area between base plate supports roller 12 and the base material, see also Fig. 2, the structural representation of the base plate supports roller 12 of the coating knifing machine that Fig. 2 provides for a kind of embodiment of the utility model.Two relative limits of the cross section of the base plate supports roller 12 among a kind of embodiment of the utility model are circular arc, two limits are parallel straight line in addition, adopt the base plate supports roller 12 of this shape, with respect to available technology adopting slewing circle roller or dull and stereotyped knifing machine as substrate, reduce the contact area of 12 on base material and base plate supports roller, and then reduced the leakage of feed liquid.
Certainly, base plate supports roller 12 also can adopt other shapes to achieve the goal, and sees also Fig. 3, the structural representation of the base plate supports roller 12 of the coating knifing machine that Fig. 3 provides for the another kind of embodiment of the utility model.The cross section of base plate supports roller 12 combines about centrosymmetric figure by two, figure is semicircle along perpendicular to the diameter of semicircle and be shorter than the bigger figure of area that obtains after the straight cuts of radius of semicircle, and two symmetrical centre about centrosymmetric figure are the center of circle of semicircle.
In order to adapt to the feed liquid of different viscosities, end at base plate supports roller 12 is provided with adjusting knob, make base plate supports roller 12 after rotation, and the contact area between the base material changes, and then the time of contact between adjusting and the base material, corresponding different feed liquids reduces leakage.
Except changing the shape of base plate supports roller 12, can also reduce the leakage of feed liquid by the surface roughness that reduces base plate supports roller 12, preferred, the surface roughness Ra of base plate supports roller 12 among the utility model embodiment≤0.01 μ m.
In the casting film process, the short fiber of substrate surface and dust easily make and produce pin hole on the finished film, cause the up one-tenth pin of diaphragm dew point; Simultaneously, in the casting film process, knifing makes diaphragm easily form the bubble leak source, thereby influences the quality of product greatly through the phenomenon of carrying secretly that gas takes place in regular meeting in the base material motion.At the problems referred to above, the utility model embodiment is provided with the dust arrester 14 of bleeding at the rear portion of discharging opening, the dust arrester 14 of bleeding is bled along the substrate surface tangential direction, remove dust and the burr on the substrate surface, can effectively avoid the generation of pin hole on the diaphragm, simultaneously, the dust arrester 14 of bleeding can become negative pressure at hopper 11 rear portion row, the gas that produces in the time of can eliminating knifing is carried phenomenon secretly, prevents the generation of bubble electric leakage, guarantees the quality of product.The dust arrester 14 of bleeding is air pump in the utility model embodiment.
In the casting film process, the feed liquid that viscosity is different, they are mobile different, in order to tackle the feed liquid of different viscosities, keep certain discharging speed, the rear wall of hopper 11 is connected with two sidewalls of hopper 11 by screw knob among the utility model embodiment, is the adjustable size of discharging opening, like this, when using the bigger feed liquid of viscosity, the rear wall that can suitably regulate hopper 11 enlarges discharging opening, guarantees load, and then guarantees the uniformity of film; When using the less feed liquid of viscosity, the rear wall that can regulate hopper 11 dwindles discharging opening, avoids load excessive, causes waste.
In order to dwindle the volume of coating knifing machine, the wrap-up 4 among the utility model embodiment comprises a plurality of slewing rollers, and the motion that changes base material turns to, and constitutes multi-turn and entad coils structure, has dwindled the length of coagulating tank 3.
In experiment or production process, may need in coagulating tank 3, to add chemicals and change the coagulating bath composition, the coagulating bath composition that changes in the whole coagulating tank 3 needs a large amount of chemicals, cost is higher and be difficult to make within a short period of time coagulating bath to reach even, so in coagulating tank 3, be provided with coagulating tank dividing plate 5 among the utility model embodiment, coagulating tank dividing plate 5 bottoms are clamped by two mobile backing rolls, two mobile backing rolls can be along coagulating tank 3 horizontal slips, leave the gap between two mobile backing rolls and coagulating tank dividing plate 5 bottoms and coagulating tank 3 bottoms, be used for passing through base material.Use coagulating tank dividing plate 5 with coagulating tank 3 separated into two parts, reduced the amount of the chemicals that changes coagulating bath composition needs, saved cost, make coagulating bath easily reach even.
In order to increase the uniformity of coagulating bath, promote the exchange in the coagulating bath of solvent in the film, guarantee the stability of gained film properties, also be provided with feed liquid agitating device 6 among the utility model embodiment in the coagulating tank 3, feed liquid agitating device 6 is fixed on coagulating tank 3 inside, can be accomplished in several ways, such as supersonic generator, mechanical agitation, circulating pump etc.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (11)
1. one kind is coated with knifing machine, it is characterized in that, comprise dispense tip (1), fixture (2) and coagulating tank (3), described dispense tip (1) is arranged at the top of described coagulating tank (3) by described fixture (2), is provided with the wrap-up (4) for the rolling base material in the described coagulating tank (3);
Described dispense tip (1) comprising:
The bottom is provided with the hopper (11) of discharging opening;
Be positioned at the base plate supports roller (12) of described discharging opening below, described base plate supports roller (12) is the profile structure;
Scraper (13), adjustable front end that is arranged at described discharging opening.
2. coating knifing machine according to claim 1, it is characterized in that, described fixture (2) is climatic chamber, described dispense tip (1) is installed in the described climatic chamber, described climatic chamber is communicated with described coagulating tank (3), described coagulating tank (3) top is provided with top cover, forms enclosed construction.
3. coating knifing machine according to claim 1 is characterized in that, two relative limits of the cross section of described base plate supports roller (12) are circular arc, and two limits are parallel straight line in addition.
4. coating knifing machine according to claim 1, it is characterized in that, the cross section of described base plate supports roller (12) combines about centrosymmetric figure by two, described figure is semicircle along perpendicular to the diameter of described semicircle and be shorter than the bigger figure of area that obtains after the straight cuts of radius of described semicircle, and described two symmetrical centre about centrosymmetric figure are the center of circle of described semicircle.
5. coating knifing machine according to claim 1 is characterized in that, the end of described base plate supports roller (12) is provided with adjusting knob, is used for regulating the contact area of described base material and described base plate supports roller (12).
6. according to each described coating knifing machine of claim 1-5, it is characterized in that the surface roughness Ra of described base plate supports roller (12)≤0.01 μ m.
7. coating knifing machine according to claim 1 is characterized in that, the rear portion of described discharging opening also is provided with the dust arrester of bleeding (14).
8. coating knifing machine according to claim 1 is characterized in that, the rear wall of described hopper (11) is connected with two sidewalls of described hopper (11) by screw knob.
9. coating knifing machine according to claim 1 is characterized in that, described wrap-up (4) comprises a plurality of slewing rollers, constitutes multi-turn and entad coils structure.
10. coating knifing machine according to claim 1, it is characterized in that, be provided with coagulating tank dividing plate (5) in the described coagulating tank (3), described coagulating tank dividing plate (5) bottom clamps by two mobile backing rolls, described mobile backing roll can be along described coagulating tank (3) horizontal slip, leaves the gap between the bottom of described two mobile backing rolls and described coagulating tank (3) bottom.
11. coating knifing machine according to claim 1 is characterized in that, is provided with feed liquid agitating device (6) in the described coagulating tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194490 CN203170229U (en) | 2013-04-17 | 2013-04-17 | Coating film scraping machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320194490 CN203170229U (en) | 2013-04-17 | 2013-04-17 | Coating film scraping machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203170229U true CN203170229U (en) | 2013-09-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320194490 Expired - Lifetime CN203170229U (en) | 2013-04-17 | 2013-04-17 | Coating film scraping machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203170229U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233704A (en) * | 2015-09-22 | 2016-01-13 | 天津工业大学 | Novel preparation method of high-performance composite film |
| CN111318173A (en) * | 2020-03-31 | 2020-06-23 | 华北理工大学 | Preparation device of separation membrane with controllable microporous structure and control method of bathing angle of membrane body |
-
2013
- 2013-04-17 CN CN 201320194490 patent/CN203170229U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105233704A (en) * | 2015-09-22 | 2016-01-13 | 天津工业大学 | Novel preparation method of high-performance composite film |
| CN111318173A (en) * | 2020-03-31 | 2020-06-23 | 华北理工大学 | Preparation device of separation membrane with controllable microporous structure and control method of bathing angle of membrane body |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
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| CX01 | Expiry of patent term |