CN102712009A - Head for DF coater - Google Patents
Head for DF coater Download PDFInfo
- Publication number
- CN102712009A CN102712009A CN2010800607599A CN201080060759A CN102712009A CN 102712009 A CN102712009 A CN 102712009A CN 2010800607599 A CN2010800607599 A CN 2010800607599A CN 201080060759 A CN201080060759 A CN 201080060759A CN 102712009 A CN102712009 A CN 102712009A
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- China
- Prior art keywords
- coating
- chamber
- die lip
- spray nozzle
- nozzle part
- Prior art date
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Classifications
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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
- D21H23/46—Pouring or allowing the fluid to flow in a continuous stream on to the surface, the entire stream being carried away by the paper
- D21H23/48—Curtain coaters
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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
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/005—Curtain coaters
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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
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
- B05C5/0266—Coating heads with slot-shaped outlet adjustable in length, e.g. for coating webs of different width
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- Coating Apparatus (AREA)
- Paper (AREA)
Abstract
A head for a DF coater wherein the length of a curtain film in the width direction thereof can be adjusted, paint does not leak from the portion of a nozzle, the portion not forming the curtain film, and impasto at the edge of the curtain film is prevented. The head is provided with: a lip-sealing block (13) which, in order to adjust the width dimension of the curtain film (3a), seals the lower-end lip (5a) of the portion of a nozzle (5), the portion not forming the curtain film (3a); a deckle sheet (12) which is inserted into the nozzle (5) in accordance with the end of the curtain film (3a) in the width direction thereof, thereby forming a nozzle space (17) in an upper portion sealed with the lip-sealing block (13); and a chamber seal (11) which demarcates the inside of a paint chamber (4) in accordance with the end of the curtain film (3a) in the width direction thereof, thereby forming a chamber space (16) in the upper portion sealed with the lip-sealing block (13).
Description
Technical field
The present invention relates to be used to make coating to become the membranaceous DF coating machine that flows down and coat base material of curtain to use head.
Background technology
Become known on banding substrates such as paper, forming DF (Direct Fountain) coating machine of filming.This DF coating machine has and is used to make the coating that is supplied to become the membranaceous DF coating machine of curtain to use head.More detailed; This DF coating machine has the coating chamber that is used to store the coating after the deaeration that is supplied to head; Coating there is not the spray nozzle part that is detained and guides to the bottom swimmingly from this coating chamber; At this spray nozzle part the flow of coating is carried out rectification with the uniform mode of width, it is flowed out from spray nozzle front end, form evenly and the curtain film of stable flow rate.Then through with stretch this curtain film fastly it being coated base material (for example referring to patent documentation 1) equably in moment of running into base material and base material.
The length of the width of the curtain film that forms and DF coating machine are with the same length of the width of head.But, than it under the situation such as short, preferably press the length (at the ejection width of the curtain film of spray nozzle part) of width of length adjustment curtain film of the width of base material in the length of the width of the base material that is applied.
At present,, press gaskets such as stainless steel,, adjust the length of curtain film thus this die lip sealing across rubber in the die lip of the spray nozzle front end (lower end) of the part that does not form the curtain film as the structure of this width dimensions of adjustment.In addition,,, insert, with bending tablet and stickup, adjust the length of curtain film thus in the lower end of spray nozzle part than this gap vinyl chloride sheet of forming of unfertile land slightly in the gap of the spray nozzle part of the part that does not form the curtain film as additive method.
The prior art document
Patent documentation
Patent documentation 1: TOHKEMY 2000-210607 communique
Summary of the invention
But said structure has following problem.
(1) with the structure of die lip sealing or just insert in the structure of vinyl chloride sheet, sealing is insufficient, and coating spills from the front end of the spray nozzle part of sealing sometimes.
(2) in the structure with die lip sealing, the coating of the part of sealing is along the horizontal diffluence of die lip sometimes, the settling off of the marginal portion of the adjusted curtain film of width dimensions, and causing on the edge of, portion is coated with coating thickly.
(3) in the structure with the die lip sealing, the interior pressure of the die lip in the part of sealing uprises, and is difficult to seal fully.
(4) coating chamber and the spray nozzle part at the upside that is positioned at the part that does not form the curtain film also gets into coating, causes by coating pollution.
The present invention In view of the foregoing accomplishes; Be used to provide a kind of DF coating machine to use head; This DF coating machine uses head can adjust the length of the width of curtain film, and the spray nozzle part that coating can never not form the part of curtain film spills, and can prevent to be coated with at the thick of marginal portion of curtain film.
In order to solve above-mentioned problem; The present invention is that a kind of DF coating machine is used head; This DF coating machine forms strip with the width of the base material that the head edge is applied; Have extension in inside and be present in coating chamber and the spray nozzle part of this DF coating machine with the length direction of head; Coating is fed in this coating chamber with coating, becomes curtain to emit from said nozzle portion coating membranaceously, it is characterized in that; In order to adjust the width dimensions of above-mentioned curtain film; Possess: will not form the die lip sealing block (lip-sealing block) of die lip sealing of lower end of said nozzle portion of the part of this curtain film, the width end of the above-mentioned curtain film that aligns is inserted in the said nozzle portion, at the tentering sheet (deckle sheet) that is formed the spray nozzle part space by the top of above-mentioned die lip sealing block sealing, the width end of the above-mentioned curtain film that aligns to above-mentioned coating indoorly divide, at the chamber seal (chamber seal) that is formed chamber portion space by the top of above-mentioned die lip sealing block sealing.
In addition, also can possess the sealing water supply unit of supplying with sealing water to above-mentioned spray nozzle part space and above-mentioned chamber portion space.
And then, also can be that above-mentioned sealing water supply unit possesses the feed pipe of supplying with sealing water and the drainpipe of discharging sealing water, above-mentioned drainpipe is configured in upside than above-mentioned feed pipe.
In addition, also can on the pipe arrangement of in above-mentioned spray nozzle part space and above-mentioned chamber portion space, supplying with sealing water, switch valve be set, make the pressure of the above-mentioned sealing water in the space be lower than the pressure of the coating in above-mentioned coating chamber and the said nozzle portion.More detailed, can 0 to and the pressure same degree of coating between the pressure of adjustment sealing water.
On the other hand, also can have the pressing device that above-mentioned die lip sealing block is pushed to above-mentioned die lip from the downside of above-mentioned die lip sealing block, the anchor clamps that support above-mentioned die lip sealing block with the mode that can slide along the width of above-mentioned coating chamber are set.
In addition, also can form above-mentioned die lip sealing block and above-mentioned tentering sheet can assemble the all-in-one-piece mode.
And then, can also be that above-mentioned chamber seal is formed by the rubber-like elastomeric material, be provided with respectively in the both sides of the length direction of above-mentioned coating chamber above-mentioned chamber seal pressed and narrowly make its distortion and be connected to the pressing plate of the inwall of above-mentioned coating chamber.
DF coating machine of the present invention is with in the head; In order to adjust the width dimensions of above-mentioned curtain film; Possess: the die lip sealing block of die lip sealing of lower end of said nozzle portion that will not form the part of this curtain film; Align the width end of above-mentioned curtain film be inserted in the said nozzle portion, at the tentering sheet that is formed the spray nozzle part space by the top of above-mentioned die lip sealing block sealing; Align above-mentioned curtain film the width end to above-mentioned coating indoorly divide, at the chamber seal that is formed chamber portion space by the top of above-mentioned die lip sealing block sealing, so can chamber portion space and spray nozzle part space be divided, make coating can not enter in the above-mentioned space.Therefore, sealing improves, and can prevent that coating from spilling from the die lip of sealing.In addition, because coating can not get into the chamber portion space and the spray nozzle part space of the upside of the die lip that is positioned at sealing, so coating can not prevent that the thick of edge part of the adjusted curtain film of width dimensions is coated with along the die lip lateral flow.And then, because coating not inlet chamber portion space and spray nozzle part space, so the interior pressure that is produced by coating can not act on the die lip of sealing.In addition, because coating not inlet chamber portion space and spray nozzle part space, so this part can not alleviated the cleaning work in maintenance etc. by coating pollution.
Description of drawings
Fig. 1 is the front view of the DF coating machine of embodiment of the present invention with head.
Fig. 2 is the profile that the DF coating machine along the cut-out of A-A line of Fig. 1 is used head.
Fig. 3 is the profile that the DF coating machine along the cut-out of B-B line of Fig. 1 is used head.
Fig. 4 (a) is a front view of representing to have carried out with the elongated mode of the width dimensions of curtain film the state of adjustment, (b) is that expression is compared the front view that the mode that shortens has been carried out the state of adjustment with the width dimensions of curtain film with Fig. 4 (a).
Fig. 5 be Fig. 4 (a) installation the enlarged drawing of part of tentering sheet.
Fig. 6 be Fig. 4 (b) installation the enlarged drawing of part of tentering sheet.
Symbol description
1 DF coating machine is used head
2 base materials
3 coating
3a curtain film
4 coating chamber
5 spray nozzle parts
The 5a die lip
6a, 6b edge guide
7a coating supply pipe
7b coating discharge pipe
10 width dimensions guiding mechanisms
11 Room seals
12 tentering sheets
13 die lip sealing blocks
14a, 14b pressing plate
Double-screw bolt is used in 15 adjustment
16 Room portion spaces
17 spray nozzle part spaces
18 portions
19 sealings
20 slot parts
21,25 bolts
22 anchor clamps
23 foots
The 23a bottom wall portion
Internal thread hole is used in the 23b adjustment
24 wing bolts (pressing device)
26 sealing water
27 sealing water supply units
28 side wall portions
29 feed pipes
30 drainpipes
31,32 switch valves
40 transports
41 width adjustment parts
42 direction of feed adjustment parts
43 intermediate mass
44 bases
45 double-screw bolts
46,49 sliding parts
47 handles
48 bases
The specific embodiment
Below, use Fig. 1～Fig. 6 that the DF coating machine of embodiment of the present invention is elaborated with head.
Fig. 1 be the DF coating machine of embodiment of the present invention with 1 front view, Fig. 2 is the profile of the A-A line of Fig. 1, Fig. 3 is the profile of the B-B line of Fig. 1.Should explain that below in the direction of explanation, width (DF coating machine with 1 and the width of base material 2) is meant the paper left and right directions of Fig. 1.Equally, up and down, left and right directions is meant the direction based on the paper of Fig. 1.
The DF coating machine uses 1 extension as shown in Figure 1 to be present in the width of base material 2, and portion is provided for storing the coating chamber 4 of coating 3 within it.This coating chamber 4 also exists direction (width) to form strip continuously along the DF coating machine with 1 extension.
Downside in this coating chamber 4, as shown in Figure 2, be formed for the spray nozzle part 5 that the coating 3 in the coating chamber 4 is flowed down.This spray nozzle part 5 extends to downside from coating chamber 4, forms opening (die lip 5a) in the bottom of spray nozzle part 5.In addition, spray nozzle part 5 and die lip 5a are formed on the total length of the width of coating chamber 4.Thus, the coating 3 in the coating chamber 4 under the downside spontaneous current, is formed on the DF coating machine with wide curtain film 3a on 1 the width from the die lip 5a of spray nozzle part 5.
In addition, as shown in Figure 1 in the right-hand end of DF coating machine with 1 width, be provided for coating supply pipe 7a to the internal feed coating 3 of coating chamber 4, be provided in the coating chamber 4 coating discharge pipe 7b in left end with remaining coating discharge.Above-mentioned coating supply pipe 7a and coating discharge pipe 7b install with the form that is communicated in the coating chamber 4, and the direction that is roughly parallel to coating chamber's 4 extension existence is installed pipeline (width).
In addition, the front end opening of coating supply pipe 7a can move to the inside of coating chamber 4, can freely adjust its aperture position by the position of the end of curtain film 3a.
Should explain, above-mentioned coating supply pipe 7a and coating discharge pipe 7b also mutually conversion be configured (at the position configuration coating discharge pipe 7b of coating supply pipe 7a, at the position configuration coating supply pipe 7a of coating discharge pipe 7b).
And then, as shown in Figure 1 at the downside of DF coating machine with 1 two ends, be provided for respectively preventing the both ends of curtain film 3a contraction, make edge guide 6a, 6b under the vertical current of both ends.This edge guide 6a, 6b to be being provided with the mode that head extends to vertical lower from the DF coating machine, and the edge guide 6a in left side releasably is installed on the DF coating machine with 1 main body through stopping devices such as bolts among Fig. 1.In addition, the edge guide 6b on right side releasably is installed on the described die lip sealing block 13 of detailed description as back through stopping devices such as bolts among Fig. 1.
Should explain that above-mentioned base material 2 is supplied to the paper take-off device of side (not shown) nearby that is disposed at Fig. 1 with the state that is rolled into web-like.The base material 2 that utilizes this take-off device uncoiling is with the downside of the walking of the speed more than about 1000m/min at curtain film 3a, surface coated.The utilization of base material 2 after the coating be disposed at Fig. 1 paper depths side and than DF coating machine with 1 more the coiler device of depths side (not shown) be rolled into web-like once more.
In addition, be provided with 1 top at the DF coating machine and can adjust the transport 40 of this DF coating machine with 1 position.This transport 40 is made up of to the direction of feed adjustment part 42 of the position of the direction of feed of base material 2, the intermediate mass 43 that is configured between this width adjustment part 41 and the direction of feed adjustment part 42 width adjustment part 41, the adjustment of adjustment DF coating machine with the position of 1 width.
Direction of feed adjustment part 42 is arranged on the upside of intermediate mass 43.This direction of feed adjustment part 42 comprises the DF coating machine with the main body side of 1 coating machine and base 48 is constituted to the sliding part 49 that direction of feed moves with respect to this main body side by the top base that is installed on intermediate mass 43 48 with being installed on.Thus, the DF coating machine moves in direction of feed with 1.
On the other hand, the DF coating machine of embodiment of the present invention with 1 be provided for adjusting the width of the curtain film 3a under spray nozzle part 5 spontaneous currents the width dimensions guiding mechanism 10 of length.
To be expression carried out the front view of the state of adjustment with the width dimensions of curtain film 3a elongated mode to Fig. 4 (a), and Fig. 4 (b) is expression with the width dimensions of curtain film 3a become shorter than Fig. 4 (a) mode and the carried out front view of the state of adjustment.In addition, Fig. 5 be Fig. 4 (a) installation the enlarged drawing of part of tentering sheet 12, Fig. 6 be Fig. 4 (b) installation the enlarged drawing of part of tentering sheet 12.
Width dimensions guiding mechanism 10 possesses the tentering sheet 12 in the gap that in width restriction coating chamber 4, can store the chamber seal 11 of the substantial spatial of coating 3, the use in width limits nozzle portion 5 and from the die lip sealing block 13 of downside sealed mould lip 5a.
In addition, on chamber seal 11, exist direction 2 pressing plate 14a (left side of Fig. 1 and Fig. 5, Fig. 6), 14b (right side of Fig. 1 and Fig. 5, Fig. 6) to be installed seal 11 ground from the sandwich chamber along the extension of coating supply pipe 7a.The adjustment of on the pressing plate 14a of the front that is disposed at this coating supply pipe 7a, fixedly having implemented external screw thread processing is with double-screw bolt 15.In addition, the pressing plate 14b on the right side of Fig. 1 is implemented the internal thread machining that screws togather with the external thread part of double-screw bolt 15 with adjustment.
Adjustment is with the assembled in forms of double-screw bolt 15 with the pressing plate 14b on perforation chamber seal 11 and right side, and its right-hand end is outstanding from the right part of coating chamber 4.Thus, rotate with double-screw bolt 15 through making the adjustment outstanding from the right part, can adjust the interval of 2 pressing plate 14a, 14b, available 2 pressing plate 14a, 14b push (pressing narrow) chamber seal 11 and make its distortion (flattening).Thus,, make its distortion, thereby chamber seal 11 is contacted with the wall portion of coating chamber 4, the inner space of coating chamber 4 is divided through pushing chamber seal 11.
In addition, through separating, mark off chamber portion space 16 for the part on right side comparing chamber seal 11 with the space of these 11 pairs of coating chamber 4 of chamber seal.The details in this chamber portion space 16 is of the back.
Thus, not leaking to the right in the coating chamber 4 with coating 3, the mode in the chamber portion space 16 of part seals.
Should explain that adjustment can use manual handle to carry out with the rotation of double-screw bolt 15, also can connect electro-motor and make its rotation.In addition, also can not make adjustment use double-screw bolt 15 to be screw-type, get final product the structure that can be to use hydraulic cylinder or cylinder to push so long as can push the structure of 2 pressing plate 14a, 14b.
Thus, can not leaking to the right in the spray nozzle part 5 with coating, the mode in the space 17 of part seals.
Die lip sealing block 13 is as shown in Figure 3 to install from the mode of downside sealed mould lip 5a, and like Fig. 5 and shown in Figure 6, the mode that will be positioned at the die lip 5a integral sealing of this right portions with the downside from above-mentioned tentering sheet 12 is extended and existed.
The section shape of die lip sealing block 13 formation essentially rectangular as shown in Figure 3 shape.This die lip sealing block 13 by the pair of block portion 18,18 of symmetry be arranged on upside that above-mentioned portion 18,18 of assembling form, constitute with sealing 19 that die lip 5a directly contacts.In addition, this pair of block portion 18,18 is formed for tentering sheet 12 is inserted and fixing slot part 20 with the state that makes up 2.Above-mentioned die lip sealing block 13 and pair of block portion 18,18 are like Fig. 5 and shown in Figure 6 fixing by bolt 21.
In addition, tentering sheet 12 is in order to be installed on die lip sealing block 13, and is as shown in Figure 1, and its shape forms roughly L font.The downside of the L word shape of this tentering sheet 12 is together fastening and fixing with piece portion 18,18 with above-mentioned bolt 21.
In addition, in the left end of die lip sealing block 13 above-mentioned edge guide 6b is installed.
This die lip sealing block 13 like Fig. 3 and Fig. 5, shown in Figure 6ly install with anchor clamps 22.This anchor clamps 22 are as shown in Figure 3 to install with the mode of 1 main part from fore-and-aft direction (the depths direction of Fig. 1) clamping DF coating machine, support die lip sealing block 13 from downside.These anchor clamps 22 releasably are installed on the DF coating machine with 1 main part through bolt 25 stopping devices such as grade.
In addition, anchor clamps 22 are like Fig. 5 and 2 foots 23,23 that have in the configuration of width devices spaced apart shown in Figure 6,23,23 each the self-forming bottom wall portion 23a (referring to Fig. 3) of this foot.The adjustment that up/down perforation is set respectively at above-mentioned bottom wall portion 23a, 23a is with internal thread hole 23b, 23b.Wing bolt 24,24 (pressing device) inserts and should adjust with internal thread hole 23b, 23b from downside, thereby can make progress thruster pressing mold lip seal piece 13.Thus sealing 19 is pushed to die lip 5b, guarantee sealing function.
Should explain that the formation of utilizing wing bolt 24,24 to push is an example, for example can be the straight-moving mechanism of up and down push-and-pull is set can be with die lip sealing block 13 thruster structure or other pushing structures of pressing upwards.
In addition, under the state that has unclamped above-mentioned wing bolt 24,24, die lip sealing block 13 (and tentering sheet 12 and edge guide 6b of being installed on die lip sealing block 13) is moved slidably with 1 width to the DF coating machine.
On the other hand, DF coating machine of the present invention be provided on 1 to the chamber portion space 16 on the right side that is formed on coating chamber 4 and spray nozzle part 5 and spray nozzle part space 17 supply with sealing water 26, sealing water supply unit 27.
The DF coating machine with 1 possess the sidewall that constitutes coating chamber 4 and spray nozzle part 5 side wall portion 28; At this side wall portion 28, constitute with the feed pipe 29 of the position (height and position in space 17) of 1 downside with than the drainpipe 30 that this feed pipe 29 is installed in upside (height and position in chamber portion space 16) by being installed on the DF coating machine.The switch valve 31 that can adjust flow is set on this feed pipe 29.The switch valve 32 of flow rate adjustable is set on the drainpipe 30 in addition, similarly.
Through supplying with sealing water 26, make this space sealed water 26 and be full of to above-mentioned space 16,17.Sealing water 26 is adjusted hydraulic pressure through the switch of switch valve 31,32.This switch valve 31,32 is based on the measured value gauge tap that does not have illustrated Pressure gauge (hydraulic gage).By the pressure (back pressure) of sealing water 26 greater than 0Pa, be in a ratio of same degree or bigger the adjustment with the pressure of sewing of coating 3.
Should explain that the control of switch valve 31,32 is not carried out through there being illustrated control device.Pressure gauge and switch valve 31,32 are electrically connected on this control device.
In addition, the pressure of sealing water 26 also can replace Pressure gauge and control based on the measured value of the flowmeter of measuring flow.
For the supply method of sealing water 26, for example can control with being described below.
(1) do not feed sealing water 26, with the switch valve standard-sized sheet.The hermetically-sealed construction of the coating 3 of this moment is only implemented by tentering sheet 12 and chamber seal 11.
(2) in chamber portion space 16 and spray nozzle part space 17, fill sealing water 26, close switch valve 31,32.At this moment, do not seal the pressure adjustment of water 26.
(3) in chamber portion space 16 and spray nozzle part space 17, fill sealing water 26, close switch valve 31,32 in the state ShiShimonoseki that is adjusted into authorized pressure.
(4) sealing water 26 is supplied with to chamber portion space 16 and spray nozzle part space 17 in the limit, and the switch (flow) of limit gauge tap valve 31,32 is guaranteed the pressure for regulation with sealing water 26.
In addition, the sealing water 26 of supply is because drainpipe 30 is in a high position, so bubble is difficult to get into the inside of sealing water 26.Thus, the influence that does not receive bubble and produced correctly seals the pressure adjustment of water 26.
According to the DF coating machine of embodiment of the present invention with 1; In order to adjust the width dimensions of curtain film 3a; Possess: the die lip sealing block 13 of die lip 5a sealing of lower end of spray nozzle part 5 that will not form the part of this curtain film 3a; The width end of alignment curtain film 3a is inserted into the tentering sheet 12 that forms spray nozzle part space 17 in the spray nozzle part 5, on the top that is sealed by die lip sealing block 13; The width end of alignment curtain film 3a is to dividing, form on the top that is sealed by die lip sealing block 13 the chamber seal 11 in chamber portion space 16 in the coating chamber 4; So can divide chamber portion space 16 and spray nozzle part space 17, coating 3 can not entered in the above-mentioned space 16,17.Therefore, sealing improves, and can prevent that coating from spilling from the die lip 5a of sealing.In addition, because coating 3 does not get into the chamber portion space 16 and spray nozzle part space 17 of the upside of the die lip 5a that is positioned at sealing, so coating 3, can prevent that the thick of edge part of the adjusted curtain film of width dimensions 3a is coated with not along die lip 5a lateral flow.And then, because coating 3 not inlet chamber portion space 16 and spray nozzle part space 17, so the interior pressure that coating 3 is produced does not act on the die lip 5a of sealing.In addition, because coating 3 not inlet chamber portion space 16 and spray nozzle part space 17,, can alleviate the cleaning work in the maintenance etc. so this part can not polluted by coating 3.
In addition; Because possess to spray nozzle part space 17 and chamber portion space 16 and supply with the sealing water supply unit 27 that seals water 26; So can make coating 3 be difficult to get into not as the space of coating chamber 4 and spray nozzle part 5 uses, can be with portion space 16, above-mentioned chamber and 17 internal contaminations of spray nozzle part space.Therefore, can alleviate cleaning work when safeguarding.
And then; Because sealing water supply unit 27 possesses the feed pipe 29 of supplying with sealing water 26 and the drainpipe 30 of discharging sealing water 26; And drainpipe 30 is compared feed pipe 29 be configured in upside; So when supplying with sealing water 26, air is difficult to invade in the spray nozzle part space 17 and chamber portion space 16 of having supplied with sealing water 26.Therefore, the influence that does not receive bubble and produced, the hydraulic pressure that will seal water 26 easily is adjusted into authorized pressure.
And then; Because on the feed pipe 29 of in spray nozzle part space 17 and chamber portion space 16, supplying with sealing water 26 and drainpipe 30, switch valve 31,32 is set; With the pressure of the sealing water 26 in the space 16,17 be adjusted to coating chamber 4 and spray nozzle part 5 in the identical degree of pressure of coating 3; So even the coating 3 in coating chamber 4 or the spray nozzle part 5 will be leaked to chamber portion space 16 or spray nozzle part space 17; The hydraulic pressure of sealing water 26 acts on coating 3, also can make it be difficult to inlet chamber portion space 16 or spray nozzle part space 17.The spray nozzle part 5 that as a result, can make coating be difficult to never to form the part of curtain film 3a is sewed.In addition, because can not pollute in portion space 16, above-mentioned chamber and the spray nozzle part space 17, so can alleviate the cleaning work when safeguarding.
On the other hand; Because have the wing bolt 24 that die lip sealing block 13 is pushed to die lip 5a from the downside of die lip sealing block 13; The anchor clamps 22 of die lip sealing block 13 are supported in setting with the mode that can slide along the width of coating chamber 4; So can be easily Pushing and pressing mold lip seal piece 13 up and down, and under the state of Pushing and pressing mold lip seal piece 13 not, can adjust the position of the width of die lip sealing block 13.Therefore, can easily set the position of die lip sealing block 13 during adjustment.In addition, during cleaning, die lip sealing block 13 is slided, clean, so alleviated upkeep operation.
In addition, because die lip sealing block 13 and tentering sheet 12 are formed can assemble the all-in-one-piece mode, so when the position of the end that makes their alignment curtain film 3a, can once accomplish the adjustment operation.Therefore, compare when adjusting respectively, the adjustment operation is alleviated.
And then, because edge guide 6b is formed assembling the all-in-one-piece mode with die lip sealing block 13 and tentering sheet 12, so also can once accomplish the operation of the position of adjustment edge guide 6b.Therefore, compare when adjusting respectively, the adjustment operation is alleviated.
On the other hand; Because chamber seal 11 is formed by the rubber-like elastomeric material; Be provided with respectively in the both sides of the length direction of coating chamber 4 chamber seal 11 pressed and narrowly make its distortion and be connected to pressing plate 14a, the 14b of the inwall of coating chamber 4; So press narrow before, do not make chamber seal 11 contact inwalls, can easily adjust the position.And press narrow after, chamber seal 11 contacts with inwall, confirms its position through frictional force.In addition, contacted through pressing narrow chamber seal 11, thereby the inner space of chamber portion space 16 and coating chamber 4 is divided, can be with the sealing of sewing of coating 3.
More than, the DF coating machine of embodiment of the present invention is described with 1, but the present invention is not limited to above-mentioned embodiment, can carry out various distortion and change based on technical conceive of the present invention.
For example, in this embodiment,, be assumed to running water etc., but be not limited thereto as sealing water 26.For example through putting into cleaning fluid etc., often in purge chamber portion space 16 and the spray nozzle part space 17.
In addition; On anchor clamps 22; For die lip sealing block 13 can be slided with 1 width at the DF coating machine; Foot 23 is provided with 2 and make it stable in the width devices spaced apart, but can guaranteeing to make under the situation of its length of stably sliding, also can foot 23 be formed at width with linking into an integrated entity.In addition, foot 22 also can be 1, can also be to use straight motivation device etc. can guide the structure of die lip sealing block 13 in the mode that width slides.
And then in this embodiment, the edge guide 6b that makes the right side moves and adjusts the size of the width of curtain film 3a at width, but the edge guide 6a in left side is moved and adjusts the width dimensions of curtain film 3a.In this case, parts such as die lip sealing block 13, tentering sheet 12 and chamber seal 11 are arranged on the DF coating machine with 1 left side.
In addition, edge guide 6a, 6b two can enough be moved at width.In this case, parts such as die lip sealing block 13, tentering sheet 12 and chamber seal 11 are arranged on the DF coating machine with 1 the left and right sides.
Through above-mentioned formation, also can likewise adjust the length of the width of curtain film 3a with the structure shown in this embodiment, coating can never not form the spray nozzle part of the part of curtain film 3a and sew, and can prevent to be coated with at the thick of marginal portion of curtain film 3a.
Claims (7)
1. a DF coating machine is used head; This DF coating machine forms strip with the width of the base material that the head edge is applied; Have extension in inside and be present in coating chamber and the spray nozzle part of this DF coating machine with the length direction of head; Coating is fed in this coating chamber with coating, and coating is become from said spray nozzle part curtain is membranaceous emits
It is characterized in that, possessing in order to adjust the width dimensions of said curtain film:
Die lip sealing block, said die lip sealing block will not form the die lip sealing of lower end of said spray nozzle part of the part of this curtain film,
The align width end of said curtain film of tentering sheet, said tentering sheet is inserted in the said spray nozzle part, is being formed the spray nozzle part space by the top of said die lip sealing block sealing,
Chamber seal, said chamber seal align the width end of said curtain film to dividing in the said coating chamber, being formed chamber portion space by the top of said die lip sealing block sealing.
2. DF coating machine as claimed in claim 1 is used head, it is characterized in that, possesses the sealing water supply unit of supplying with sealing water to said spray nozzle part space and said chamber portion space.
3. DF coating machine as claimed in claim 2 is used head, it is characterized in that, said sealing water supply unit possesses the feed pipe of supplying with sealing water and the drainpipe of discharging sealing water, and said drainpipe is configured in upside than said feed pipe.
4. use head like claim 2 or 3 described DF coating machines; It is characterized in that; On the pipe arrangement of in said spray nozzle part space and said chamber portion space, supplying with sealing water, switch valve is set, makes the pressure of the said sealing water the space in be lower than the pressure of the interior coating of said coating chamber and said spray nozzle part.
5. use head like each the described DF coating machine in the claim 1～4; It is characterized in that; Have the pressing device that said die lip sealing block is pushed to said die lip from the downside of said die lip sealing block, the anchor clamps that support said die lip sealing block with the mode that can slide along the width of said coating chamber are set.
6. DF coating machine as claimed in claim 5 is used head, it is characterized in that, forms said die lip sealing block and said tentering sheet can assemble the all-in-one-piece mode.
7. use head like each the described DF coating machine in the claim 1～6; It is characterized in that; Said chamber seal is formed by the rubber-like elastomeric material; Both sides at the length direction of said coating chamber are provided with pressing plate respectively, and said pressing plate is pressed said chamber seal narrow, make its distortion and are connected to the inwall of said coating chamber.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/000097 WO2011083518A1 (en) | 2010-01-08 | 2010-01-08 | Head for df coater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102712009A true CN102712009A (en) | 2012-10-03 |
Family
ID=44305265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800607599A Pending CN102712009A (en) | 2010-01-08 | 2010-01-08 | Head for DF coater |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2011083518A1 (en) |
| CN (1) | CN102712009A (en) |
| WO (1) | WO2011083518A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105473238A (en) * | 2013-08-23 | 2016-04-06 | 欧利生电气株式会社 | Die head and coating liquid application method |
| CN113492080A (en) * | 2020-04-01 | 2021-10-12 | 阳程科技股份有限公司 | Coating machine capable of slowing down solvent backflow into coating head and soaking method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013011554A1 (en) * | 2011-07-19 | 2013-01-24 | フォイト パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング | Tandem curtain coating machine |
| US9937515B2 (en) | 2014-04-04 | 2018-04-10 | Hp Indigo B.V. | Fluid application |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114496A (en) * | 1993-09-10 | 1996-01-03 | 桑特拉德有限公司 | Device for coating solid particles |
| JPH1099764A (en) * | 1996-08-07 | 1998-04-21 | Matsushita Electric Ind Co Ltd | Coating applicator and method therefor |
| JPH10113594A (en) * | 1996-10-08 | 1998-05-06 | Inoue Kinzoku Kogyo Kk | Coating device |
| JP2000157906A (en) * | 1998-11-25 | 2000-06-13 | Canon Inc | Sheet coating method and sheet coating device and production of color filter |
| JP2005219044A (en) * | 2004-01-08 | 2005-08-18 | Nippon Steel Corp | Slide type coating apparatus and coating method using the same |
| JP2009101321A (en) * | 2007-10-25 | 2009-05-14 | Voith Patent Gmbh | Coating width adjustment device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07171467A (en) * | 1991-09-02 | 1995-07-11 | Fuji Photo Film Co Ltd | Coating method and device therefor |
| JP3903080B2 (en) * | 1997-09-26 | 2007-04-11 | 富士フイルム株式会社 | Slide bead coating method and apparatus, and multilayer coating method and apparatus |
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2010
- 2010-01-08 JP JP2011548863A patent/JPWO2011083518A1/en not_active Withdrawn
- 2010-01-08 WO PCT/JP2010/000097 patent/WO2011083518A1/en active Application Filing
- 2010-01-08 CN CN2010800607599A patent/CN102712009A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1114496A (en) * | 1993-09-10 | 1996-01-03 | 桑特拉德有限公司 | Device for coating solid particles |
| JPH1099764A (en) * | 1996-08-07 | 1998-04-21 | Matsushita Electric Ind Co Ltd | Coating applicator and method therefor |
| JPH10113594A (en) * | 1996-10-08 | 1998-05-06 | Inoue Kinzoku Kogyo Kk | Coating device |
| JP2000157906A (en) * | 1998-11-25 | 2000-06-13 | Canon Inc | Sheet coating method and sheet coating device and production of color filter |
| JP2005219044A (en) * | 2004-01-08 | 2005-08-18 | Nippon Steel Corp | Slide type coating apparatus and coating method using the same |
| JP2009101321A (en) * | 2007-10-25 | 2009-05-14 | Voith Patent Gmbh | Coating width adjustment device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105473238A (en) * | 2013-08-23 | 2016-04-06 | 欧利生电气株式会社 | Die head and coating liquid application method |
| CN113492080A (en) * | 2020-04-01 | 2021-10-12 | 阳程科技股份有限公司 | Coating machine capable of slowing down solvent backflow into coating head and soaking method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011083518A1 (en) | 2011-07-14 |
| JPWO2011083518A1 (en) | 2013-05-13 |
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Application publication date: 20121003 |