CN204059090U - For the doctor blade device of fiber web machine - Google Patents
For the doctor blade device of fiber web machine Download PDFInfo
- Publication number
- CN204059090U CN204059090U CN201420259855.1U CN201420259855U CN204059090U CN 204059090 U CN204059090 U CN 204059090U CN 201420259855 U CN201420259855 U CN 201420259855U CN 204059090 U CN204059090 U CN 204059090U
- Authority
- CN
- China
- Prior art keywords
- paper injection
- doctor blade
- blade device
- injection portion
- clamping part
- 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 - Lifetime
Links
- 239000000835 fiber Substances 0.000 title claims abstract description 31
- 238000002347 injection Methods 0.000 claims abstract description 140
- 239000007924 injection Substances 0.000 claims abstract description 140
- 239000002184 metal Substances 0.000 claims abstract description 17
- 229910052751 metal Inorganic materials 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 8
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims abstract description 5
- 239000011151 fibre-reinforced plastic Substances 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000002516 radical scavenger Substances 0.000 claims description 9
- 238000001035 drying Methods 0.000 description 17
- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G3/00—Doctors
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G3/00—Doctors
- D21G3/04—Doctors for drying cylinders
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0063—Devices for threading a web tail through a paper-making machine
Landscapes
- Drying Of Solid Materials (AREA)
- Paper (AREA)
Abstract
The utility model relates to a kind of doctor blade device for fiber web machine.The length of this doctor blade device (10) conforms to the width of fiber web machine substantially.This doctor blade device (10) comprises the blade clamping part (16) be made up of fiber reinforced plastic materials and the web paper injection portion (15) be arranged on blade clamping part, and this web paper injection portion has the stripping blowning installation (19) for peeling off paper injection band (36).This paper injection portion (15) is the parts be made up of metal, and at the extension being transversely set to this blade clamping part (16) of this fiber web machine.
Description
Technical field
The utility model relates to a kind of doctor blade device for fiber web machine, the length of this doctor blade device conforms to the width of fiber web machine substantially, this doctor blade device comprises blade clamping part and is arranged on the web paper injection portion (Bahnauff ü hrteil) on this blade clamping part, and this web paper injection portion has the scavenger system for peeling off paper injection band (Auff ü hrstreifen).
Background technology
The development in Material Field and manufacturing technology field makes it possible to utilize fiber reinforced plastic materials to make blade clamping part.People are also referred to as synthesis blade clamper (Komposit-Klingenhalter), are exemplarily described in patent document WO2009/047385A1 to this.Propose a kind of blade clamper born a heavy burden in the publication, wherein, blade clamping part is hinged on base portion.Base portion is fixed in doctor beam or on other supporting structure, between blade clamping part and base portion, arrange pressure hose, lifts on the surface utilizing this pressure hose that the scraper edge be arranged in blade clamping part can be made to be pressed against to treat scraping or from this surface.
Described doctor blade device works well as scraper.Along with being transitioned into wireless web paper injection, web paper guiding device starts to come into operation, and utilizes this web paper guiding device paper injection band can be taken off from the surface of such as drying cylinder and be transported to follow-up drying cylinder.This web paper guiding device is set to distinctive, that is independent unit, or is arranged on this doctor blade device as a part for doctor blade device.The problem of insufficient space is there will be especially at this.First, to be assembled on doctor blade device and the paper guiding device forming paper injection portion has larger structure height and is also difficult to arrange.This larger structure height also can cause adverse influence to the operation of paper injection band, can assemble dirt etc. in addition.
Utility model content
The purpose of this utility model is, for fiber web machine provides a kind of doctor blade device of novelty, this doctor blade device there is less structure height and can realize more smoothly, linear guide more stably.
Particularly, the utility model provides a kind of doctor blade device for fiber web machine, the length of this doctor blade device conforms to the width of this fiber web machine substantially, this doctor blade device comprises the blade clamping part be made up of fiber reinforced plastic materials and the web paper injection portion be arranged on this blade clamping part, this web paper injection portion has the scavenger system for peeling off paper injection band, it is characterized in that, described paper injection portion is the parts be made up of metal, and is set to the extension of described blade clamping part along the horizontal direction of fiber web machine.
Preferably, the cross-sectional profiles in described paper injection portion conforms to the cross-sectional profiles of described blade clamping part substantially.
Preferably, the end face in described paper injection portion is lowered height.
Preferably, described paper injection portion is the parts be made up of extruded shape.
Preferably, described doctor blade device comprises base portion, and this base portion common land in described paper injection portion and described blade clamping part extends.
Preferably, described doctor blade device comprises scraper edge and charger, and this scraper edge and charger common land in described paper injection portion and described blade clamping part extends.
Preferably, described paper injection portion comprise extend in a machine direction, for the paper injection plate of described paper injection band.
Preferably, described paper injection plate is removably fixed in described paper injection portion.
Preferably, described paper injection portion comprises and is arranged on paper injection blowning installation before described paper injection plate along machine direction.
Preferably, described paper injection portion is 300-1000mm in the length in a lateral direction of described fiber web machine, is preferably 500-800mm.
Of the present utility modelly be characterised in that, paper injection portion is manufactured by metal, and at the extension transversely arranging blade clamping part of fiber web machine.In addition, also work as blade clamping part in paper injection portion.First, can with the air flue needed for higher precision structure blower system in the paper injection portion be made of metal, secondly, the structure so realized only has the height of normal doctor blade device, does not have the ledge forming interference.In addition, this doctor blade device entirety can work when not having extra actuator, although and have paper injection portion, installation and the function thereof of doctor blade device still remain unchanged.This paper injection portion also can be installed in existing doctor blade device.
Accompanying drawing explanation
With reference to the accompanying drawings the utility model is described in detail, embodiment of the present utility model shown in the drawings.：
Fig. 1 be in the drying section of fiber web machine according to doctor blade device of the present utility model;
Fig. 2 a is the front view according to doctor blade device of the present utility model;
Fig. 2 b is the top view according to doctor blade device of the present utility model;
Fig. 3 a is the shaft side projection drawing according to doctor blade device of the present utility model;
Fig. 3 b is the profile along plane A-A shown in Fig. 3 a.
Detailed description of the invention
Fig. 1 shows in two net drying sections (Doppelsieb-Trockenpartie) of fiber web machine five according to doctor blade device 10 of the present utility model.Two up and down overlapping row are arranged to by drying cylinder 11, and oneself dry net 12 and 13 coverd with by each drying cylinder.Between each row drying cylinder, use open tractive unit, that is, from a drying cylinder in the transportation of another drying cylinder, fiber web 14 is not supported.Therefore must there is certain paper guiding device for paper injection band, utilize this paper guiding device that long and narrow paper injection band can be guided to arrive open tractive unit by stretch journey.For this purpose, doctor blade device has paper injection portion 15, as shown in Figure 2 a and 2 b.For clarity sake, figure 1 illustrates fiber web 14 and paper injection band 36, and in practice paper injection tape leader before this from the initiating terminal of drying group by until end, or by whole drying section, and only wide cut will advance on whole fiber web width at after this paper injection band.
The overall doctor blade device 10 shown for fiber web machine in Fig. 2 a, Fig. 2 b and Fig. 3 a.The length of doctor blade device 10 conforms to the width of fiber web machine substantially, is generally several meters.At this, length is interpreted as the lateral dimension of fiber web machine.On drying cylinder 11, doctor blade device such as extends through the whole distance (Fig. 2 b) of drying cylinder 11 along transverse machine.Doctor blade device 10 has the blade clamping part 16 be made up of fiber reinforced plastic materials.In the illustrated embodiment, blade clamping part is made up of the section bar made by carbon fiber pultrusion (formed by extrusion and tension), and this section bar can manufacture on fully integratedization ground.This blade clamping part is light and hard.In addition, scraper edge 17 is housed in blade clamping part 16, in the illustrated embodiment pressing plate 18 is also housed.In addition, blade clamping part 16 arranges web paper injection portion 15, this web paper injection portion has the scavenger system for peeling off paper injection band 36.Scavenger system only uses during web paper injection, in contrast, scraper edge when continuous seepage with treat that the surface of scraping contacts.In FIG, paper injection band 36 is stripped from the surface of drying cylinder 11, and scraper edge 17 then keeps this surface clean.
According to the utility model, paper injection portion 15 is made of metal, and is the extension of blade clamping part 16 along the horizontally set of fiber web machine.In other words, paper injection portion forms a part for the whole length of doctor blade device.In the paper injection portion be made of metal, can make accurately even the very little hole for blowing.Scavenger system for peeling off paper injection band is represented by arrow in fig 3b.The gas hole 20 made in paper injection portion 15 is orientation like this: be used in the surface that the air blowing 19 of peeling off web ran into drying cylinder before scraper edge.Extension paper injection portion being set to blade clamping part will not cause the structure height of doctor blade device to increase, and therefore this extension can easily be arranged on narrow and small position.Avoid the ledge that formation can cause interference, paper injection band thus can continue to run uninterruptedly simultaneously, will web paper injection be accelerated and improve the success rate of web paper injection thus.
The cross-sectional profiles in paper injection portion 15 conforms to the cross-sectional profiles of blade clamping part 16 aptly substantially.At this, although there is the existence in paper injection portion, doctor blade device will keep identical structure over the whole length, the operation avoided fiber web and particularly paper injection band is had a negative impact thus.This doctor blade device is also easy cleaned.
Certainly, the cross-sectional profiles in paper injection portion 15 and the cross-sectional profiles of blade clamping part 16 still have difference a little, because the end face 21 in paper injection portion 15 is constructed to smooth (Fig. 3 a and Fig. 3 b).At this, interference-free is run through paper injection portion 15 by paper injection band, can not meet some protuberance.Although the so-called upper lip of a part forming end face is formed as key position in view of load-bearing capacity and intensity, metal structure form still makes thisly smoothly to become possibility.When metal upper lip does not jeopardize its intensity in plastics composite structure, this metal upper lip can more realize by unfertile land.
Preferred paper injection portion is made up of the shape be crushed to, and at this, paper injection portion can easily mate shaping with blade clamping part.Meanwhile, can also be formed for blow 19 air chamber 22.In end face 21, add the gas hole 20 extended in air chamber 22, the end in paper injection portion 15 arranges air lance 23.For example, knownly can carry out well extruding, to process and erosion-resisting metal is aluminium and copper.
Consistent cross-sectional profiles also means to have very large advantage because doctor blade device comprise paper injection portion 15 and blade clamping part 16 the base portion 24 that shares.At this, paper injection portion swings with identical movement locus around identical rotating shaft with blade clamping part.At this, base portion 24 has protuberance 25, and in paper injection portion 15 and blade clamping part 16, arrange the groove 26 matched with this protuberance.Make protuberance and groove shaping like this: to there is form fit between which, but this form fit allows the part of axially link, namely paper injection portion 15 and blade clamping part 16, be pulled out along transverse machine and reinsert.Therefore easily maintenance and repair work can be carried out on doctor blade device.
That is, doctor blade device comprises scraper edge 17 and charger, i.e. pressue device 27, and this scraper edge and charger are set to jointly be under the jurisdiction of paper injection portion 15 and blade clamping part 16 aptly.Therefore, although there is paper injection portion, when paper injection portion 15 works, doctor blade device still works over the whole length in an identical manner, and can normally use.In the embodiment illustrated, pressue device 27 is made up of pressure hose 28, and this pressure hose is arranged between blade clamping part 16 and base portion 24.In the loaded state, pressure hose becomes large and loads scraper edge 17.Load by eliminating and deflate when needed, pressure hose can be made to relax and make scraper edge from treating that the surface of scraping is unclamped.In this condition, the scraper edge 17 comprising pressing plate 18 can be drawn out along the transverse direction of fiber web machine and correspondingly insert in this device again.Pressure hose also can be removed and correspondingly again load.Can also see bolt 29 in fig 3b, base portion 24 is such as fixed in doctor beam by this bolt.The longitudinal direction of doctor blade device is provided with multiple this bolt.
In shown embodiment, paper injection portion 15 have extend along machine direction, for the paper injection plate 30 of paper injection band.To guarantee that paper injection band runs in a desired direction thus.At this, paper injection plate 30 is fixed in paper injection portion 15 by screw 31.Therefore, the paper injection plate corresponding to each purposes can be fixed in same paper injection portion.In other words, the length of paper injection plate even shape can change.For paper injection plate 30, paper injection portion 15 has groove, is positioned at identical plane for making the surface in the surface of paper injection plate and paper injection portion.The operation the scalariform portion of assembling dirt etc. of disturbing paper injection band can be avoided the formation of in this way.
Paper injection portion 15 also has the scavenger system 32 for web paper injection, this scavenger system see in a machine direction be arranged on paper injection plate 30 before.Be blown into surface formation Coanda effect (wall attachment effect) that air-flow follows paper injection plate, this is blown into air-flow transport paper injection band and forms the air cushion with greasy property simultaneously.Paper injection band is followed paper injection plate exactly at this and is obtained power forward at the same time.In this way, paper injection band will be crossed stretch journey without traction ground safety and run in the wedge shape input gap formed by drying cylinder and dry net.For paper injection scavenger system 32, arrange in paper injection portion 15 and attach troops to a unit in the second air chamber 33 of the second gas hole 37, and the second air lance 34 is fixed on this second air chamber.Therefore, stripping air blowing and paper injection are blown and can irrelevantly be regulated each other.Hole size and pitch of holes also can have various different selection.Gas hole 20 and 37 directly leads in the plane of end face and the plane of exit face aptly.Thus by realize compared with prior art lower, without paper injection portion boss face (Auff ü hrteil-
) structure.
Compared with the whole length of doctor blade device, paper injection portion is relatively short.More precisely, paper injection portion 15 is 300-1000mm along the length of the transverse direction of fiber web machine, is preferably 500-800mm.But paper injection region also can be wide, the paper injection band that such as side direction is arrived reliably can be peeled off from dryer surface and be that paper injection air blowing is caught.Meanwhile, paper injection is blown and is made paper injection band placed in the middle on correct position, and only needs conveying paper injection band swimmingly.
In embodiment described herein, doctor blade device have at two ends band orifice (
) 35, the entirety formed by doctor blade device can penetrate this band orifice.Described entirety defines function blade clamper completely, and this blade clamper can completely normally use, but also has paper injection characteristic.That is, blade clamper is arranged in the wide doctor blade device of full width surprisingly as paper guiding device.In the described embodiment according to doctor blade device of the present utility model, the paper injection portion manufactured is set to the extension synthesizing blade clamping part by aluminium section bar.In paper injection region, in paper injection portion, be provided with the air chamber with gas hole.The blade clamper formed by blade clamping part and paper injection portion is combined by coherent pressing plate, pressure hose and base portion.Even existing synthesis blade clamper can shorten a little, then assemble according to paper injection portion of the present utility model as extension, and remaining assembly remains unchanged.Can be doctor blade device configuration web paper injection characteristic in simple and rapid manner in machine renewal process thus, and the problem not having insufficient space and be restricted.
Particularly very accurately can process aluminium, make also can form little gas hole in paper injection portion.Synthetic material has very little thermal expansion, and for fuel factor, relatively short paper injection portion only has slight expansion over its length.In addition, the connection between all parts just in time can realize by floating ground in the longitudinal direction.Therefore, the bending of structure can not be caused by the issuable power of different thermal expansions.Whole blade clamper also can by metal by being crushed to, but final the possibility of result has higher weight and do not have enough dimensional accuracies or form accuracy.Between blade clamping part and paper injection portion, there are centering member (Zentrierst ü cke) and fastening bolt, structure can seamlessly be kept, and doctor blade device work over the whole length in an identical manner.Use according to Material selec-tion of the present utility model and design, very light and low-down structure can be realized, and there is no disadvantageous ledge.In other words, blade clamper does not need fixing unnecessary thing, thus blade clamper is had evenly, stably surface.Therefore the operation of paper injection band can not be interfered, and doctor blade device is also easy to keep clean.In addition, the doctor blade device self with paper injection characteristic is also applicable to narrow and small position.
Other that also can be arranged on fiber web machine according to the doctor blade device being configured with paper injection characteristic of the present utility model need on the position of scraper and web paper injection.Except drying cylinder, treat that the plane of scraping also can be alternatively even with by roller and form.Paper injection band such as can be directed to other paper guiding device, such as vacuum transport belt or carrier rope, with alternative wedge shape input gap.
When extrusion metal, utilize mould extrusion metal material, therefore the shape of mould will be delivered on the material that is squeezed.Mould can very freely design, thus can manufacture complex-shaped object, such as, is be made up of the single metallic object of extruding according to paper injection portion of the present utility model.Nearly all metal can extrude, but various aluminium alloy may be the metal be the most often extruded.The characteristic of metal can be changed, such as machinability and corrosion resistance by making alloy.Will be existed with the form of blank (such as shaft-like) or powder by extruded metal.
Claims (11)
1. the doctor blade device for fiber web machine (10), the length of this doctor blade device conforms to the width of this fiber web machine substantially, this doctor blade device comprises the blade clamping part (16) be made up of fiber reinforced plastic materials and the web paper injection portion (15) be arranged on this blade clamping part, this web paper injection portion has the scavenger system (19) for peeling off paper injection band (36), it is characterized in that, described paper injection portion (15) is the parts be made up of metal, and the extension of described blade clamping part (16) is set to along the horizontal direction of fiber web machine.
2. doctor blade device according to claim 1, is characterized in that, the cross-sectional profiles of described paper injection portion (15) conforms to the cross-sectional profiles of described blade clamping part (16) substantially.
3. doctor blade device according to claim 1 and 2, is characterized in that, the end face (21) of described paper injection portion (15) is lowered height.
4. doctor blade device according to claim 1 and 2, is characterized in that, described paper injection portion (15) is the parts be made up of extruded shape.
5. doctor blade device according to claim 1 and 2, is characterized in that, described doctor blade device comprises base portion (24), and this base portion extends described paper injection portion (15) and the upper common land of described blade clamping part (16).
6. doctor blade device according to claim 1 and 2, it is characterized in that, described doctor blade device comprises scraper edge (17) and charger (27), and this scraper edge and charger extend described paper injection portion (15) and the upper common land of described blade clamping part (16).
7. doctor blade device according to claim 1, is characterized in that, described paper injection portion (15) comprise extend in a machine direction, for the paper injection plate (30) of described paper injection band (36).
8. doctor blade device according to claim 7, is characterized in that, described paper injection plate (30) is removably fixed on described paper injection portion (15).
9. the doctor blade device according to claim 7 or 8, is characterized in that, described paper injection portion (15) comprises and is arranged on paper injection blowning installation (32) before described paper injection plate (30) along machine direction.
10. doctor blade device according to claim 1 and 2, is characterized in that, described paper injection portion (15) is 300-1000mm in the length in a lateral direction of described fiber web machine.
11. doctor blade devices according to claim 10, is characterized in that, described paper injection portion (15) is 500-800mm in the length in a lateral direction of described fiber web machine.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20135663A FI124590B (en) | 2013-06-18 | 2013-06-18 | Scraping equipment for a fiber web machine |
| FI20135663 | 2013-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204059090U true CN204059090U (en) | 2014-12-31 |
Family
ID=50879342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420259855.1U Expired - Lifetime CN204059090U (en) | 2013-06-18 | 2014-05-21 | For the doctor blade device of fiber web machine |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN204059090U (en) |
| AT (1) | AT14200U1 (en) |
| DE (1) | DE202014102146U1 (en) |
| FI (1) | FI124590B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250643A (en) * | 2020-09-25 | 2022-03-29 | 维美德技术有限公司 | Doctor blade device of a fiber web machine and blowing device thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI119823B (en) | 2007-10-10 | 2009-03-31 | Metso Paper Inc | Creator equipment and method for a sheet forming machine for scraping a moving surface and blade holder |
| FI124219B (en) * | 2007-11-14 | 2014-05-15 | Valmet Technologies Inc | Scraping apparatus for removing a threading strap from a moving surface with a fiber web machine |
| FI120981B (en) * | 2008-04-17 | 2010-05-31 | Metso Paper Inc | Schaber beam and method for affecting the properties of a fiber web |
-
2013
- 2013-06-18 FI FI20135663A patent/FI124590B/en active IP Right Grant
-
2014
- 2014-05-08 DE DE202014102146.9U patent/DE202014102146U1/en not_active Expired - Lifetime
- 2014-05-12 AT ATGM201/2014U patent/AT14200U1/en unknown
- 2014-05-21 CN CN201420259855.1U patent/CN204059090U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114250643A (en) * | 2020-09-25 | 2022-03-29 | 维美德技术有限公司 | Doctor blade device of a fiber web machine and blowing device thereof |
| CN114250643B (en) * | 2020-09-25 | 2024-02-20 | 维美德技术有限公司 | Doctor blade device for a fiber web machine and blowing device therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| FI124590B (en) | 2014-10-31 |
| FI20135663A (en) | 2014-10-31 |
| AT14200U1 (en) | 2015-05-15 |
| DE202014102146U1 (en) | 2014-05-20 |
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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: 20141231 |