CN105603822B - Seal blades - Google Patents
Seal blades Download PDFInfo
- Publication number
- CN105603822B CN105603822B CN201510794912.5A CN201510794912A CN105603822B CN 105603822 B CN105603822 B CN 105603822B CN 201510794912 A CN201510794912 A CN 201510794912A CN 105603822 B CN105603822 B CN 105603822B
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- China
- Prior art keywords
- seal blades
- seal
- blades
- contact surface
- flow openings
- Prior art date
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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
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
-
- 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
-
- 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
- B05C1/0826—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 the work being a web or sheets
- B05C1/0834—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 the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
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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
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/04—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface with blades
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G3/00—Doctors
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
- D21H23/34—Knife or blade type coaters
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/32—Addition to the formed paper by contacting paper with an excess of material, e.g. from a reservoir or in a manner necessitating removal of applied excess material from the paper
- D21H23/34—Knife or blade type coaters
- D21H23/36—Knife or blade forming part of the fluid reservoir, e.g. puddle-type trailing blade or short-dwell coaters
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
- D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
- D21H23/22—Addition to the formed paper
- D21H23/52—Addition to the formed paper by contacting paper with a device carrying the material
- D21H23/56—Rolls
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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
- B05C11/02—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface ; Controlling means therefor; Control of the thickness of a coating by spreading or distributing liquids or other fluent materials already applied to the coated surface
- B05C11/023—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface
- B05C11/025—Apparatus for spreading or distributing liquids or other fluent materials already applied to a surface with an essentially cylindrical body, e.g. roll or rod
-
- 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
- B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
- B05C3/18—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material only one side of the work coming into contact with the liquid or other fluent material
Landscapes
- Coating Apparatus (AREA)
Abstract
The present invention relates to a kind of seal blades, it includes the flat part (32) between relative elongated margin (30,31) and relative elongated margin, and the seal blades are suitable to the doctor blade holder (17) being arranged in the coating machine (25) of apparatus for coating (21) and contact mobile surface (11 ').Contact surface (33) can be arranged to be 5% the 15% of the width (W) of seal blades (10) against mobile surface and its width, and the contact surface is suitable in seal blades (10).
Description
Technical field
The application is related to a kind of seal blades, and the seal blades include relative elongated margin and relative elongated margin
Between flat part, the seal blades are applied to a doctor blade holder, and the doctor blade holder is arranged in the coating machine of apparatus for coating and with one
Mobile surface contact.
Background technology
The coating of Paper or cardboard or top sizing can be carried out for example using film transfer spreader.Wherein, pending web
The nip being advanced through between two rollers.Coating mixture or sizing agent are using specific coating machine in a roller or two rollers
It is unrolled on surface, and the surface for the web being processed in the nip treated between the rolls is transferred to from the surface.The surface of roller
On applying glue oxidant layer thickness and profile can for example be adjusted by wing or wheel measuring floating rule.
Coating machine may include application room, and the application room is limited in the rotation side of roller by blade element, on the other hand by antetheca
To.In transverse direction, apply room and limited by side seal.Coating mixture or Cypres are for example by the beam of coating machine
Passage be supplied to apply room.Coating mixture is supplied to so big speed and pressure and applied in room, so that preceding
Stream is returned and is produced, in other words, coating mixture stream or sizing agent stream edge and the rotation of application roller in gap between wall and application roller
The direction for turning in opposite direction produces.The air penetration on the surface that the purpose flowed is prevention application roller is returned into application room.Such as
Fruit air, which can enter, applies room, then uncoated place can be produced in web.
It is well known that seal blades can be used as closing the antetheca for applying room.Seal blades can be pressed against application roller so that not having
Air escapes between scraper and application roller to be applied in room.There is no actual return stream between seal blades and application roller, but
It is that some coating mixtures pass through the flow openings (flow opening, fluid openings) in seal blades to be directed from room is applied
To the front of scraper.In this case, lubricant pool is formed prevents seal blades in the front of seal blades, the lubricant pool
The friction that occurs between application roller and damage the roller of seal blades.If such as because the excess supply of coating mixture causes
The pressure increase of room is applied, then seal blades is pressed against the power increase of application roller, thus seal blades are quickly worn and can damaged
Bad application roller or to less wear application roller.
However, the shortcomings that seal blades about prior art is the edge for the scraper placed against application roller with scraper
Use and become sharp.This causes the employment security problem in the maintenance of coating machine.Such as when replacing seal blades, measurement are scraped
During the reel cage of bar or measurement floating rule, sharp seal blades are to maintenance personal's danger close.For being only measurement floating rule and its shaking
The replacing (replacing needs the replacing than seal blades more frequently to carry out in some cases) of frame, it is often uncomfortable from coating
Machine removes seal blades, because performing cumbersome.The where the shoe pinches for removing seal blades are that seal blades can be firm
Admittedly be bonded on its doctor blade holder, therefore will need to clean in order to removing.Become sharp and be difficult to the sealing removed
Scraper, employee can be caused to be hurt and also damage the surface of application roller.
It is relevant with becoming sharp seal blades to solve the problems, such as to have made the trial of many different modes, but has received
Imitate little.Because the knife rest of seal blades is secured on beam in a fixed manner, so being difficult to the position for changing knife rest.Sealing
Scraper can be also raised in doctor blade holder, but this and not always provide desired result.Increase is lubricated to reduce seal blades
The trial of friction between application roller can be made by changing supply pressure, but this is sealed to obtain imperfect sealing
The limitation of part and limited by scale problems.Further, since the reason for such as increased leakage and splashing, it is not desired to turn
Become relatively thin seal blades and higher chamber pressure.
A kind of seal blades of prior art refer in the FI of Patent No. 103058 (Finland) patent.It is special from this
Seal blades known to profit are flat articles.Therefore two flat surfaces of the scraper are essentially similar flat surfaces, change speech
It, the leading edge and back edge of scraper are in same level.
The content of the invention
The purpose of the present invention is to realize that a kind of edge becomes less sharp seal blades.Scraped according to the sealing of the present invention
The feature of knife is presented in a kind of seal blades, and the seal blades include relative elongated margin and the relative elongated side
Flat part between edge, and the seal blades are adapted to doctor blade holder, and the doctor blade holder is arranged in the coating machine of apparatus for coating
In, and contacted with mobile surface, it is characterised in that a contact surface is suitable in the seal blades, the contact surface
It can be arranged to against the mobile surface, and the contact surface is the 5%-15% of the width of the seal blades.
In the present invention, the contact surface for the 5%-15% of seal blades against mobile surface and width can be arranged to
Suitable in seal blades.The result in seal blades, seal blades and mobile table are adapted in advance as contact surface
Angle between face reduces, and seal blades and the contact area on mobile surface increase, and the abrasion of seal blades reduces.With
This mode, the flat surface of seal blades also reliably contact with mobile surface, and the sharpening of the elongated margin of seal blades subtracts
It is few, and the employment security relevant with the maintenance of apparatus for coating strengthens.
According to one embodiment, flow openings can be included in the flat part of seal blades.In this case, contact
The major part on surface is suitable between elongated margin and flow openings.Which ensure that the most good speed of flow openings in all cases
Make, and flow openings will not be seated against moving surface.
It is possible that the flat part of seal blades is divided into two or more regions, and contacts surface and formed at least one
In individual region.Segmentation can be completed by different way.Example is included in the folding (fold) made in the flat part of seal blades
Or rounding (rounding).The present invention can also realize some other advantages, close such as when seal blades need not be changed too early
The service life of sealing scraper is longer, the roller replacement cycle is longer, the mass change of paper and cardboard is smaller and the production of paper and cardboard
Amount is higher.The present invention discloses other additional advantages of realization in the description of the invention.
Brief description of the drawings
The invention is not restricted to embodiments given below, the present invention is more fully described with reference to the accompanying drawings, in the accompanying drawings：
Fig. 1 shows the principle example of the apparatus for coating from side,
Fig. 2 shows an example of the coating machine from side,
Fig. 3 shows from one end of seal blades, an example from the seal blades of top end on observation, and
Fig. 4 a- Fig. 4 c show seal blades from side and its how to be arranged as multiple implementations against application roller
The schematic diagram of the coarse level of example.
Embodiment
Fig. 1 generally shows the example of the apparatus for coating 21 from side.In this case, device 21 includes two
Application roller 22,11 is rotated, the two rotation application rollers are suitable to nip contact, and pending (in other words, treat top sizing or painting
Cloth) Paper or cardboard web 24 be suitable to the two rotation application rollers between advance.The direct of travel of web 24 is indicated by an arrow,
And the direct of travel of roller 22,11 is also indicated by an arrow.The treated substance (such as coating mixture or Cypres) of web 24
It is unrolled by coating machine 25 on the surface 22 ', 11 ' of application roller 22,11.Treated substance layer is flattened, and its thickness by
Such as blade element of wing or wheel measuring floating rule (reference 15 in Fig. 2) adjusts.The treated substance scraped
Layer is transferred to the both sides for the web 24 being processed in the nip between roller 22,11 from application roller 22,11.If only web 24
Side be processed, then treated substance only can be spread out on an application roller (for example, application roller 11).
Fig. 2 shows an example of the coating machine 25 from side.In this case, coating machine 25 is constructed to
It is placed on beam 12, and is formed against the application room 20 of application roller 11 by the space in beam 12, rotation of the space along application roller 11
Turn direction to be occurred the seal blades 10 (i.e. on inlet side) first and (revolved by the measurement floating rule 15 on outlet side
Turn behind direction) limitation.Seal blades 10 are secured on beam 12 by doctor blade holder 17, and measurement floating rule 15 is by scraping bridge 14
Fastening.
Seal blades 10 are pressed against the surface 11 ' of application roller 11, and prevent coating from flowing to roller 11 in an uncontrolled fashion
The opposite direction of direction of rotation, and prevent the air that rotating roller 11 carries from entering in application room 20.Measurement floating rule 15 is put
Put at a certain distance from away from seal blades 10, the measurement floating rule 15 is pressed against application roller 11, but the measurement floating rule 15 is transferred to
It is suspended at a certain distance from the surface 11 ' away from roller 11 membrane fluid power in rotating roller 11.By changing measurement floating rule 15
Load to adjust the thickness of the film on the surface 11 ' for being transferred to roller 11.Seal blades 10 are formed with measuring the distance between floating rule 15
Distance is applied, therefore applies room 20 and is limited by beam 12, seal blades 10, measurement floating rule 15 and application roller 11.Apply the end of room 20
Portion is sealed by flexible seals 19 in the case according to the embodiment, and the flexible seals limit region to be coated
Width.Coating is supplied to application room 20 through nozzle 18 from the supervisor 13 within beam 12 and spreads all over the whole of coating machine 25
Width.
Fig. 3 shows from one end of seal blades, an example from the seal blades 10 of top end on observation, the sealing
Scraper 10 may correspond in Fig. 2 that being arranged in coating machine 25.Seal blades 10 include relative elongated margin 30,31 and
Flat part 32 between two elongated margins.The flat part 32 has opposite sides, forms flat surface 32a and 32b.Flat part 32
Flat surface 32a in the side of roller 11, flat surface 32b is applying the side of room 20.In these flat surfaces, Fig. 3 shows applying
The flat surface 32b of the side of room 20.
On the doctor blade holder 17 that seal blades 10 may be adapted to be disposed in the coating machine 25 of apparatus for coating 21 and with moving table
Face 11 ' is contacted so that the seal blades can be replaced.Therefore, seal blades 10 include fastening area 37, the fastening area is suitable to
In that side of the first elongated margin (back edge) 31, seal blades 10 are suitable to be secured to doctor blade holder 17 from the fastening area 37.
In fastening area 37, can have and for example be die cut fastener (die-cut fasteners), the cross cutting fastener ensures that scraper 10 is tight
It is affixed to knife rest 17.Relative the second elongated margin (leading edge) 30 of the first edge 31 with coming elongated knife rest 17 includes tip
38, the tip is adapted to abut against moving surface 11 '.
It can be arranged to be suitable in seal blades 10 against the contact surface 33 on mobile surface 11 '.Contact surface 33
Some examples are presented in Fig. 2 and Fig. 4 a- Fig. 4 c.Surface 33 is contacted in that side of roller 11 (in other words, with applying that side of room 20 not
With side) seal blades 10 flat surface 32a on.Contact surface 33 (width) can be the width W of seal blades 10
5%-15%.At this point, the width W of seal blades refers to the elongated of the seal blades 10 measured along flat part 32
Edge 30, the distance between 31.Correspondingly, the length L of seal blades 10 is referred to along the horizontal seal blades 10 of machine
Length.The length L of seal blades 10 can be several meters, up to 10 meters.W and L are perpendicular to one another in direction.It has to be noticed that sealed in figure
The ratio of scraper 10 and its part is not necessarily actual ratio.Just it is disposed in during its manufacture as contact surface 33
Result in seal blades 10, when seal blades 10 are installed in doctor blade holder 17, the seal blades are in relative to roller 11
At suitable angle, and therefore the lubrication at the tip 38 of such as seal blades 10 becomes enough to which and even sophisticated 38 become not that
It is sharp, because a flat surface 32a part is against mobile surface 11 '.
By the way that contact surface 33 is arranged in seal blades 10, and on the elongated margin 30 only by the seal blades
Connection compare, seal blades can over a greater surface area, and especially on its flat part 32 more reliably with movement
Surface 11 ' is contacted.In addition, before seal blades are installed in doctor blade holder 17, contact surface 33 is in sealing
In scraper 10, and and if only if by scraper 10 against during the mobile loading of surface 11 ', the contact surface is not formed.In other words, also may be used
To say that initial tension removes from scraper 10 when in the doctor blade holder 17 that scraper is installed in it.This causes the flat of scraper 10
Contact between smooth portion 32 and mobile surface 11 ' is very reliable, while the sharpening at the tip 38 of scraper 10 is reduced.
According to one embodiment, flow openings 34,34.1-34.3 may be adapted in the flat part 32 of seal blades 10.This
Some examples of the position of a little flow openings are presented in Fig. 4 a- Fig. 4 c, and wherein these flow openings are substantially by by wearing
The double-headed arrow for crossing the flat part 32 of scraper 10 is described.The major part on contact surface 33 may be adapted in elongated margin 30 and scraper 10
Flow openings 34, between 34.1-34.3.Surface 33 is contacted with flow openings 34,34.1-34.3 to be suitable in seal blades 10
In so that when being contacted with mobile surface 11 ', suitable for the flow openings 34 in seal blades 10,34.1-34.3 at least partly
Ground separates with mobile surface 11 '.In this case, mobile surface 11 ' will not obstructed flow opening 34,34.1-34.3.This
It ensure that flow openings 34,34.1-34.3 are being operated under any circumstance, in other words, prevent air from entering to enter the room in 20, it is ensured that
The lubrication of seal blades 10, and ensure that and remove superpressure from room 20.As the result of the present invention, or even flowing can be improved
The effect (impact, influenceing) that opening 34,34.1-34.3 are realized.Flow openings 34,34.1- on the flat part 32 of scraper 10
34.3 position can be optimized to for example close to Standard contact surface 33, and therefore between such as scraper 10 and mobile surface 11 '
Lubrication can be reinforced.
According to one embodiment, for example, contact surface 33 can be disposed in seal blades 10 so that seal blades 10
Flat part 32 is divided into two or more region 35.1-35.3, wherein contact surface 33 is formed at least one region 35.1,
In other words, formed in the side of flat part 32.In figs. 4 a and 4b, seal blades 10 have been separated into two regions 35.1,
35.3, contact surface 33 is in region 35.1.In fig.4, surface 33 is contacted in plane domain 35.1, and in fig. 4b, is connect
Surface 33 is touched in bending area 35.1.Correspondingly, in Fig. 4 c, seal blades 10 have been separated into three region 35.1-
35.3, and surface 33 is contacted again in region 35.1, the region is also a plane domain herein.
According to the embodiment shown in Fig. 4 a- Fig. 4 c, region 35.1-35.3 can be formed with some different modes.According to first
Embodiment, the flat part 32 of seal blades 10 fold 36.1,36.2 by one or more and are divided into two or more regions
35.1-35.3.In figs. 4 a and 4b, there is seal blades 10 one to fold 36.1, and in Fig. 4 c, seal blades 10 have
Two fold 36.1,36.2.Folding 36.1,36.2 can be oblique angle (beveled, oblique) sharp folds or can also be round
Profit folds.When folding 36.1,36.2 with two, the angle of folding need not be so big.The flat part 32 of seal blades 10
Also two or more regions 35.1,35.3 can be divided into by one or more roundings 36.3.This is the situation in such as Fig. 4 b.
36.1,36.2 and/or rounding 36.3 are folded, more generally, the removal of the initial tension of seal blades 10 can for example scrape in sealing
The final stage of the manufacture of knife 10 is performed.
Fig. 4 a show to arrange flow openings 34.1-34.3 three kinds of different possibilities in seal blades 10.These streams
Dynamic opening for example can be in the same area 35.1 with contact surface 33, and in this case, these flow openings are folding
36.1 with contacting between surface 33.These flow openings also can be in same area 35.3, in the same area, seal blades
10 are secured to knife rest 17.In addition, these flow openings also can be being folded accurately at 36.1.In Fig. 4 b embodiment, stream
Dynamic opening 34.3 is in region 35.3, and in Fig. 4 c, and flow openings 34.1 are in region 35.2.
The length of top edge (in other words, near the edge at the tip 38 of scraper 10) away from seal blades 10 of flow openings 34
The distance D at shape edge 30 (edge 30 is equipped with tip 38) can be such as 15mm-50mm.Seal blades 10 for example can be bullet
Spring steel Class1,4301, and its material thickness can be such as 0.254mm-0.381mm, and overall width W can be such as 100mm-
130mm。
As described above, no longer it is flat objects known in the art according to the seal blades 10 of the present invention.Alternatively,
The leading edge 30 of seal blades deviates plane surface.The deviation for example can by one of the direction of the length L along scraper 10 or
Multiple angles are folded to complete.Fold the 5%- for the distance that can be located at the tip 38 away from scraper 10 along the width W of scraper 10 direction
At 15%, the tip 38 be with the relative edge 30 in the edge 31 of that side of doctor blade holder 17.Such as present in fig. 4b another
Alternative solution is that the point for making scraper 10 is rounded in the region 33 discussed, with edge and the bending identical of roller surface 11 '
Direction is bent.
It should be understood that above description and related accompanying drawing are only intended to illustrate the present invention.Therefore, the present invention is not limited only to
State embodiment or embodiment that claims are limited, a variety of remodeling of the invention and adjustment are for those skilled in the art
It will be apparent, these remodeling and adjustment can be in the range of inventive concepts as defined in appended claims.
Claims (7)
1. a kind of seal blades, the seal blades include relative elongated margin (30,31) and the relative elongated margin
Between flat part (32), and the seal blades are adapted to doctor blade holder (17), and the doctor blade holder is arranged in apparatus for coating
(21) in coating machine (25), and contacted with mobile surface (11 '), it is characterised in that a contact surface is suitable to described
In seal blades (10), the contact surface (33) can be arranged to against the mobile surface (11 '), and the contact surface is
The 5%-15% of the width (W) of the seal blades (10),
The flat part (32) of wherein described seal blades (10) folds (36.1,36.2) or rounding (36.3) by one or more
It is divided into two or more regions (35.1-35.3), contact surface (33) is formed in described two or multiple regions
In at least one region (35.1).
2. seal blades according to claim 1, it is characterised in that multiple flow openings (34,34.1-34.3) are suitable to
On the flat part (32) of the seal blades, the major part of contact surface (33) is suitable in the elongated margin (30) and institute
State between flow openings (34,34.1-34.3).
3. seal blades according to claim 1, it is characterised in that flow openings (34,34.1-34.3) are suitable to described
On the flat part (32) of seal blades, it is described contact surface (33) be suitable in the seal blades (10) so that when with it is described
During mobile surface (11 ') contact, suitable for the flow openings (34,34.1-34.3) in the seal blades (10) at least
Partly separated with the mobile surface (11 ').
4. seal blades according to claim 2, it is characterised in that the flow openings (34,34.1-34.3) are suitable to
On the flat part (32) of the seal blades, it is described contact surface (33) be suitable in the seal blades (10) so that when with
During mobile surface (11 ') contact, suitable for the flow openings (34,34.1-34.3) in the seal blades (10)
Separated at least in part with the mobile surface (11 ').
5. according to the seal blades described in claim any one of 2-4, it is characterised in that the top edge of the flow openings (34)
Distance (D) to the elongated margin (30) of the seal blades (10) is 15mm-50mm.
6. according to the seal blades described in claim any one of 1-4, it is characterised in that the seal blades (10) include：
- fastening area (37), suitable for being suitable in the first elongated margin (31) that side, the seal blades (10) from the fastening zone
Domain (37) is secured to the doctor blade holder (17),
- the second elongated margin (30), with first elongated margin (31) relatively,
- flat surface (32a, 32b), the opposite sides positioned at the seal blades (10), the elongated margin (30,31) it
Between, contact surface (33) is suitable in the side of the flat surface.
7. seal blades according to claim 6, it is characterised in that one is adapted to abut against the point of the mobile surface (11 ')
(38) are held to be suitable on an elongated margin (30) of the seal blades (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20146006A FI126700B (en) | 2014-11-18 | 2014-11-18 | The dam blade |
| FI20146006 | 2014-11-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105603822A CN105603822A (en) | 2016-05-25 |
| CN105603822B true CN105603822B (en) | 2018-04-10 |
Family
ID=54540954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510794912.5A Active CN105603822B (en) | 2014-11-18 | 2015-11-18 | Seal blades |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3023163B1 (en) |
| CN (1) | CN105603822B (en) |
| ES (1) | ES2811278T3 (en) |
| FI (1) | FI126700B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3842591A1 (en) | 2019-12-23 | 2021-06-30 | Andritz Küsters GmbH | Device for applying an applied medium |
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| FI103058B (en) * | 1997-09-17 | 1999-04-15 | Valmet Corp | Arrangement for feeding a treating agent into an application chamber of an applicator used for treating paper or cardboard, and a method for uniformly distributing the substance within the chamber |
| US5902401A (en) * | 1997-07-09 | 1999-05-11 | Pevifibe Papers Inc. | Coater head |
| CN102430499A (en) * | 2010-09-29 | 2012-05-02 | 竞陆电子(昆山)有限公司 | Coating scraper |
| CN203170534U (en) * | 2013-03-25 | 2013-09-04 | 无锡侨颂特种纸有限公司 | Coating scraper |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5249547A (en) * | 1990-03-29 | 1993-10-05 | Kyokutosanki Co., Ltd. | Manually operated sizing machine |
| JP3453716B2 (en) * | 1995-03-22 | 2003-10-06 | 三菱製紙株式会社 | Manufacturing method of coated paper for printing |
| BE1011561A5 (en) * | 1997-11-21 | 1999-10-05 | Volder Laurent De | METHOD AND APPARATUS FOR INKINKING AN ENGRAVED CLICHEBATE FROM AN INK RESERVOIR. |
| US6024797A (en) * | 1998-03-30 | 2000-02-15 | Beloit Technologies, Inc. | Method and apparatus for controlling coat-weight profile |
| DE19934441A1 (en) * | 1999-07-22 | 2001-01-25 | Voith Paper Patent Gmbh | Device for direct or indirect application of a liquid or pasty application medium to a running material web, in particular made of paper or cardboard |
| FI113976B (en) * | 2003-02-10 | 2004-07-15 | Metso Paper Inc | Application device for a film transfer coating device and coating method |
| DE102005027791A1 (en) * | 2005-06-15 | 2006-12-21 | Pama Papiermaschinen Gmbh | Device for applying liquid to pasty suspensions on paper or board webs |
| JP3965416B1 (en) * | 2006-06-16 | 2007-08-29 | 株式会社堅牢防水化学 | Doctor blade used for resin processing on fabric and resin processing method using the same |
| JP5568978B2 (en) * | 2009-12-17 | 2014-08-13 | 凸版印刷株式会社 | Gravure coating device and liquid removal device |
-
2014
- 2014-11-18 FI FI20146006A patent/FI126700B/en active IP Right Grant
-
2015
- 2015-11-12 ES ES15194249T patent/ES2811278T3/en active Active
- 2015-11-12 EP EP15194249.7A patent/EP3023163B1/en active Active
- 2015-11-18 CN CN201510794912.5A patent/CN105603822B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4839201A (en) * | 1987-12-03 | 1989-06-13 | Valmet Paper Machinery Inc. | Method and apparatus for applying coating liquid to a moving base |
| US5902401A (en) * | 1997-07-09 | 1999-05-11 | Pevifibe Papers Inc. | Coater head |
| FI103058B (en) * | 1997-09-17 | 1999-04-15 | Valmet Corp | Arrangement for feeding a treating agent into an application chamber of an applicator used for treating paper or cardboard, and a method for uniformly distributing the substance within the chamber |
| CN102430499A (en) * | 2010-09-29 | 2012-05-02 | 竞陆电子(昆山)有限公司 | Coating scraper |
| CN203170534U (en) * | 2013-03-25 | 2013-09-04 | 无锡侨颂特种纸有限公司 | Coating scraper |
Also Published As
| Publication number | Publication date |
|---|---|
| FI126700B (en) | 2017-04-13 |
| EP3023163A1 (en) | 2016-05-25 |
| EP3023163B1 (en) | 2020-05-13 |
| FI20146006A (en) | 2016-05-19 |
| ES2811278T3 (en) | 2021-03-11 |
| CN105603822A (en) | 2016-05-25 |
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