WO2011083518A1 - Tête pour coucheuse df - Google Patents

Tête pour coucheuse df Download PDF

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Publication number
WO2011083518A1
WO2011083518A1 PCT/JP2010/000097 JP2010000097W WO2011083518A1 WO 2011083518 A1 WO2011083518 A1 WO 2011083518A1 JP 2010000097 W JP2010000097 W JP 2010000097W WO 2011083518 A1 WO2011083518 A1 WO 2011083518A1
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WO
WIPO (PCT)
Prior art keywords
chamber
paint
lip
coater
seal
Prior art date
Application number
PCT/JP2010/000097
Other languages
English (en)
Japanese (ja)
Inventor
片野敏弘
河野弘幸
平野明男
佐々忠
石塚克己
Original Assignee
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 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 filed Critical 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
Priority to CN2010800607599A priority Critical patent/CN102712009A/zh
Priority to PCT/JP2010/000097 priority patent/WO2011083518A1/fr
Priority to JP2011548863A priority patent/JPWO2011083518A1/ja
Publication of WO2011083518A1 publication Critical patent/WO2011083518A1/fr

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Classifications

    • 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
    • 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
    • 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

Definitions

  • the present invention relates to a head for a DF coater for applying a paint to a substrate by flowing down a paint into a curtain film.
  • a DF (Direct Fountain) coater for forming a coating film on a tape-like substrate such as paper is known.
  • This DF coater has a DF coater head for making the supplied paint into a curtain film shape. More specifically, the head for the DF coater has a paint chamber for storing the supplied defoamed paint, and smoothly guides the paint from the paint chamber to the lower nozzle section without retaining the paint.
  • the flow of the paint is uniformly rectified in the width direction by this nozzle portion and flows out from the tip of the nozzle to form a curtain film having a uniform and stable flow rate. And it applies uniformly to a base material by extending
  • the length of the curtain film formed in the width direction is basically the same as the length of the DF coater head in the width direction. However, when the length in the width direction of the substrate to be coated is shorter than that, the length in the width direction of the curtain film (the length of the curtain film in the nozzle part) is adjusted to the length in the width direction of the substrate. It is preferable to adjust the blowing width.
  • the structure described above has the following problems. (1) With a structure that seals the lip part or a structure that only inserts a vinyl chloride sheet, the sealing performance is insufficient, and the paint sometimes leaks from the tip of the sealed nozzle part. (2) In the structure that seals the lip part, the paint in the sealed part flows in the lateral direction along the lip part, and the paint on the edge part of the curtain film after the width dimension adjustment becomes excessive. The paint was sometimes applied thickly. (3) In the structure in which the lip portion is sealed, the internal pressure of the lip portion at the sealed portion is high, and it is difficult to completely seal the lip portion. (4) The paint also enters the paint chamber and the nozzle portion located above the portion where the curtain film is not formed, and is stained with the paint.
  • the present invention has been made in view of the above-described circumstances, the length in the width direction of the curtain film can be adjusted, the paint does not leak from the nozzle portion of the portion where the curtain film is not formed, and the curtain film
  • the object is to provide a head for a DF coater that can prevent thick coating at an edge portion.
  • the present invention has a paint chamber and a nozzle portion which are formed in a length along the width direction of a substrate to be coated and extend in the longitudinal direction.
  • a DF coater head that is supplied with coating paint and discharges the paint from the nozzle portion in the form of a curtain film, in order to adjust the width dimension of the curtain film, the portion of the curtain film is not formed.
  • a lip seal block that seals the lip portion at the lower end of the nozzle portion, and a deckle sheet that forms a nozzle portion space in the upper portion that is inserted into the nozzle portion in accordance with the width direction end portion of the curtain film and sealed by the lip seal block
  • the interior of the paint chamber is defined in accordance with the width direction end of the curtain film, and a chamber space is formed in the upper part sealed with the lip seal block. Characterized in that a chamber seal that.
  • seal water supply unit that supplies seal water to the nozzle part space and the chamber part space may be provided.
  • the seal water supply unit may include a water supply pipe for supplying seal water and a drain pipe for discharging the seal water, and the drain pipe may be disposed above the supply water pipe.
  • an on-off valve is provided in a pipe that supplies seal water into the nozzle part space and the chamber part space, and the pressure of the seal water in the space is lower than the pressure of the paint in the paint chamber and the nozzle part.
  • the pressure of the sealing water can be adjusted from 0 to the same level as the pressure of the paint.
  • a fitting means having pressing means for pressing the lip seal block against the lip portion from the lower side of the lip seal block, and supporting the lip seal block slidably along the width direction of the paint chamber.
  • the lip seal block and the deckle sheet may be formed so as to be integrally assembled.
  • the chamber seal is formed of a rubber material having elasticity, and press plates are provided on both sides in the longitudinal direction of the paint chamber so as to contact the inner wall of the paint chamber by narrowing and deforming the chamber seal. Also good.
  • a lip seal block that seals a lip part at the lower end of the nozzle part in a part where the curtain film is not formed
  • a deckle sheet that is inserted into the nozzle portion according to the width direction end portion and seals with the lip seal block to form a nozzle portion space
  • the paint chamber is defined according to the width direction end portion of the curtain film.
  • a chamber seal that forms a chamber part space on the upper part sealed with the lip seal block, so that the chamber part space and the nozzle part space are defined so that the paint does not enter these spaces. Can be. Therefore, the sealing property is improved, and the paint can be prevented from leaking from the sealed lip portion.
  • the paint does not enter the chamber space and the nozzle space located above the sealed lip portion, the paint does not flow laterally along the lip portion, and the edge of the curtain film after adjusting the width dimension Thick coating at the part can be prevented. Furthermore, since the paint does not enter the chamber space and the nozzle space, the internal pressure due to the paint does not act on the sealed lip portion. Furthermore, since the paint does not enter the chamber part space and the nozzle part space, the part is not contaminated with the paint, and the cleaning work in maintenance or the like can be reduced.
  • FIG. 2 is a cross-sectional view of the DF coater head cut along line AA in FIG. 1.
  • FIG. 2 is a cross-sectional view of the DF coater head cut along line BB in FIG. 1.
  • A is a front view which shows the state adjusted so that the width dimension of a curtain film
  • (b) shows the state adjusted so that the width dimension of a curtain film
  • FIG. 5 is an enlarged view of a portion where the deckle sheet of FIG.
  • FIG. 5 is an enlarged view of a portion where the deckle sheet of FIG.
  • FIG. 1 is a front view of a DF coater head 1 according to an embodiment of the present invention
  • FIG. 2 is a cross-sectional view taken along line AA in FIG. 1
  • FIG. 3 is a cross-sectional view taken along line BB in FIG. It is.
  • the width direction (the width direction of the DF coater head 1 and the base material 2) refers to the left-right direction of FIG.
  • the vertical and horizontal directions refer to directions based on the paper surface of FIG.
  • the DF coater head 1 extends in the width direction of the substrate 2, and a coating liquid chamber 4 for storing the coating liquid 3 is provided therein.
  • the coating liquid chamber 4 is also formed in a continuous length along the extending direction (width direction) of the DF coater head 1.
  • a nozzle portion 5 for allowing the coating material 3 in the coating liquid chamber 4 to flow down is formed below the coating liquid chamber 4.
  • the nozzle portion 5 extends downward from the coating liquid chamber 4, and an opening (lip portion 5 a) is formed at the lower end portion of the nozzle portion 5.
  • the nozzle portion 5 and the lip portion 5a are formed over the entire length of the coating liquid chamber 4 in the width direction.
  • the paint 3 in the paint chamber 4 naturally flows downward from the lip part 5a of the nozzle part 5 to form a wide curtain film 3a in the width direction of the DF coater head 1.
  • a paint supply pipe 7a for supplying the paint 3 to the inside of the coating liquid chamber 4 is provided at the right end in the width direction of the DF coater head 1, and at the left end.
  • a paint discharge pipe 7b for discharging excess paint from the paint chamber 4 is provided.
  • the paint supply pipe 7a and the paint discharge pipe 7b are attached in a manner communicating with the paint chamber 4, and are piped so as to be substantially parallel to the extending direction (width direction) of the paint chamber 4.
  • the tip opening of the paint supply pipe 7a can be moved toward the inside of the paint chamber 4, and the opening position can be freely adjusted according to the position of the end of the curtain film 3a. ing.
  • the paint supply pipe 7a and the paint discharge pipe 7b described above are arranged interchangeably (the paint discharge pipe 7b is arranged at the position of the paint supply pipe 7a, and the paint supply pipe 7a is arranged at the position of the paint discharge pipe 7b). May be.
  • edge guides 6a and 6b for preventing contraction of both ends of the curtain film 3a and allowing the both ends to flow vertically are provided below the both ends of the DF coater head 1, respectively. It has been.
  • the edge guides 6a and 6b are provided so as to extend vertically downward from the DF coater head.
  • the left edge guide 6a in FIG. 1 can be attached to and detached from the body of the DF coater head 1 by a fastening member such as a bolt. Is attached.
  • the right edge guide 6b in FIG. 1 is detachably attached to a lip seal block 13 described later in detail by a fastening member such as a bolt.
  • the base material 2 mentioned above is supplied to the unwinder apparatus (not shown) arrange
  • the base material 2 after coating is wound up again in a roll shape by a winder device (not shown) disposed on the back side of the paper in FIG. 1 and further on the back side than the head 1 for the DF coater. ing.
  • a transport device 40 capable of adjusting the position of the DF coater head 1 is provided above the DF coater head 1.
  • the transport device 40 includes a width direction adjusting unit 41 that adjusts the position in the width direction of the DF coater head 1, a feed direction adjusting unit 42 that adjusts the position of the base material 2 in the feed direction, and the width direction adjusting unit. 41 and an intermediate block 43 disposed between the feed direction adjusting section 42.
  • the width direction adjusting unit 41 is provided above the DF coater head 1 and below the intermediate block 43.
  • the width direction adjustment unit 41 can move the pedestal 44 in the width direction with respect to the pedestal 44 attached to the DF coater head 1 side, the stud 45 attached to the intermediate block 43 side, and the intermediate block 43. And a slide portion 46.
  • the pedestal 44 is subjected to internal thread processing, and the internal thread processed portion is assembled so that a stud 45 subjected to external thread processing is screwed together. Then, by rotating the handle 47 provided at the end portion of the stud 45, the pedestal 44 moves along the moving direction of the slide portion 46, and the DF coater head 1 moves in the width direction. Become.
  • the feeding direction adjustment unit 42 is provided on the upper side of the intermediate block 43.
  • the feed direction adjusting section 42 is attached to the base side of the coating machine including the base 48 attached to the upper surface of the intermediate block 43 and the DF coater head 1, and the base 48 is fed in the feed direction of the base 48. It is comprised with the slide part 49 which enables the movement of this. As a result, the DF coater head 1 moves in the feed direction.
  • the DF coater head 1 is provided with a width dimension adjusting mechanism 10 for adjusting the length in the width direction of the curtain film 3 a that naturally flows down from the nozzle portion 5.
  • FIG. 4A is a front view showing a state in which the width of the curtain film 3a is adjusted to be longer
  • FIG. 4B is a view in which the width of the curtain film 3a is shorter than that of FIG. 4A.
  • It is a front view which shows the state adjusted to. 5 is an enlarged view of a portion where the deckle sheet 12 of FIG. 4A is mounted
  • FIG. 6 is an enlarged view of a portion where the deckle sheet 12 of FIG. 4B is mounted.
  • the width dimension adjusting mechanism 10 includes a chamber seal 11 that restricts a substantial space in which the paint 3 can be stored in the coating liquid chamber 4 in the width direction, and a deckle sheet that restricts a gap used in the nozzle portion 5 in the width direction. 12 and a lip seal block 13 for sealing the lip portion 5a from below.
  • the chamber seal 11 is provided at the distal end portion of the paint supply pipe 7 a and is formed of an elastic rubber material having a sealing property.
  • the position of the tip opening of the paint supply pipe 7a is freely adjustable (movable) along the longitudinal direction of the paint chamber 4 as described above. That is, the chamber seal 11 is not hindered from adjusting (moving) by making a gap with the wall portion of the paint chamber 4.
  • the position of the chamber seal 11 is arranged on a line extending upward from the position of the right end portion of the curtain film 3a described above.
  • the chamber seal 11 has two pressing plates 14a (left side in FIGS. 1, 5, and 6) and 14b (see FIG. 1) so as to sandwich the chamber seal 11 from both sides along the extending direction of the paint supply pipe 7a. 1 and the right side of FIGS. 5 and 6 are attached.
  • An adjustment stud 15 that has been subjected to male screw processing is fixed to a holding plate 14a that is disposed on the distal end side of the paint supply pipe 7a. Further, the right holding plate 14b in FIG. 1 is subjected to a female screw process to be screwed into the male screw portion of the adjustment stud 15.
  • the adjustment stud 15 is assembled so as to penetrate the chamber seal 11 and the right holding plate 14 b, and its right end protrudes from the right end of the coating liquid chamber 4.
  • the interval between the two pressing plates 14a and 14b can be adjusted, and the chamber seal 11 is pressed (narrow pressure) by the two pressing plates 14a and 14b.
  • To deform (crush) Thereby, the chamber seal 11 can be brought into contact with the wall portion of the paint chamber 4 by pressing and deforming the chamber seal 11, and the internal space of the paint chamber 4 is partitioned.
  • a chamber portion space 16 is defined in a portion on the right side of the chamber seal 11. Details of the chamber space 16 will be described later.
  • sealing is performed so that the paint 3 does not leak from the paint chamber 4 into the chamber space 16 on the right side.
  • the adjustment stud 15 may be rotated using a manual handle or connected to an electric motor for rotation. Moreover, as long as it is a structure which can press the two pressing plates 14a and 14b, without using the adjustment stud 15 as a screw type, it may press using a hydraulic cylinder or an air cylinder.
  • the deckle sheet 12 is sandwiched between the gaps of the nozzle portion 5, and is a resin plate formed to be equal to or slightly thinner than the gaps. Further, the left end portion of the deckle sheet 12 is arranged along a line extending upward from the position of the right end portion of the curtain film 3a described above. Further, a space 17 is defined in a portion on the right side of the deckle sheet 12. Details of the space 17 will be described later.
  • the paint is sealed so that the paint does not leak from the nozzle portion 5 into the space 17 on the right side portion.
  • the lip seal block 13 is attached so as to seal the lip portion 5a from the lower side, and as shown in FIGS. 5 and 6, from the lower side of the deckle sheet 12 described above, It extends so as to seal the entire lip portion 5a located on the right side portion thereof.
  • the cross-sectional shape of the lip seal block 13 is substantially rectangular as shown in FIG.
  • the lip seal block 13 includes a pair of symmetrical block portions 18 and 18 and a seal portion 19 provided on the upper side where the block portions 18 and 18 are assembled and in direct contact with the lip portion 5a.
  • the pair of block portions 18 and 18 are formed with a groove portion 20 for sandwiching and fixing the deckle sheet 12 in a state where the two block portions 18 and 18 are combined.
  • the lip seal block 13 and the pair of block portions 18 and 18 are fixed by bolts 21 as shown in FIGS.
  • the deckle sheet 12 is formed in a substantially L shape as shown in FIG. 1 in order to be attached to the lip seal block 13.
  • the lower side of the L-shape of the deckle sheet 12 is fixed together with the block portions 18 and 18 by the bolt 21 described above.
  • the edge guide 6b described above is attached to the left end of the lip seal block 13.
  • the lip seal block 13 is attached by a fixture 22 as shown in FIGS. 3, 5, and 6. As shown in FIG. 3, the fixture 22 is attached so as to sandwich the main body of the DF coater head 1 from the front-rear direction (depth direction in FIG. 1), and supports the lip seal block 13 from below. It has become.
  • the attachment 22 is detachably attached to the main body of the DF coater head 1 with a fastener such as a bolt 25.
  • the fixture 22 has two leg portions 23, 23 arranged at intervals in the width direction, and each of the leg portions 23, 23 includes A bottom wall portion 23a (see FIG. 3) is formed. These bottom wall portions 23a and 23a are provided with female screw holes 23b and 23b for adjustment penetrating vertically. Bow bolts 24, 24 (pressing means) are inserted into the adjusting eye screw holes 23b, 23b from below so that the lip seal block 13 can be pressed upward. As a result, the sealing portion 19 is pressed against the lip portion 5b to ensure the sealing function.
  • the structure pressed with the wing bolts 24 and 24 is an example.
  • a structure in which a linear motion mechanism that can be pushed up and down is provided to press the lip seal block 13 upward, or other pressing structures may be used. It doesn't matter.
  • the lip seal block 13 (and the deckle sheet 12 and the edge guide 6b attached to the lip seal block 13) are slid in the width direction of the DF coater head 1. It can be moved.
  • the seal water supply unit 27 for supplying the seal water 26 to the chamber part space 16 and the nozzle part space 17 formed on the right side of the paint chamber 4 and the nozzle part 5. Is provided.
  • the DF coater head 1 includes a side wall portion 28 that constitutes the side walls of the paint chamber 4 and the nozzle portion 5, and the side wall portion 28 has a position below the DF coater head 1 (the height of the space 17).
  • the water supply pipe 29 attached to the position
  • the drainage pipe 30 attached to the upper side of the water supply pipe 29 (the height position of the chamber space 16).
  • the water supply pipe 29 is provided with an on-off valve 31 whose flow rate can be adjusted.
  • the drain pipe 30 is provided with an on-off valve 32 whose flow rate can be adjusted.
  • this space is filled with the seal water 26.
  • the water pressure of the sealing water 26 is adjusted by opening and closing the on-off valves 31 and 32.
  • the on-off valves 31 and 32 are controlled to open and close based on a measured value of a pressure gauge (water pressure gauge) (not shown).
  • the pressure (back pressure) of the sealing water 26 is adjusted so as to be greater than 0 Pa and approximately equal to or slightly greater than the leakage pressure of the paint 3.
  • on-off valves 31 and 32 are controlled by a control device (not shown).
  • a pressure gauge and on-off valves 31 and 32 are electrically connected to the control device.
  • the pressure of the seal water 26 can be controlled based on the measured value of a flow meter that measures the flow rate instead of the pressure gauge.
  • this sealing water 26 can control as follows, for example. (1) Fully open the on-off valve without putting the seal water 26. At this time, the seal structure of the paint 3 is performed only by the deckle sheet 12 and the chamber seal 11. (2) The seal water 26 is filled into the chamber space 16 and the nozzle space 17 and the on-off valves 31 and 32 are closed. In this case, the pressure of the sealing water 26 is not adjusted. (3) The on-off valves 31 and 32 are closed in a state where the chamber water space 16 and the nozzle space 17 are filled with the sealing water 26 and adjusted to a predetermined pressure. (4) While supplying the sealing water 26 to the chamber space 16 and the nozzle space 17, the opening and closing (flow rate) of the on-off valves 31 and 32 is controlled to keep the sealing water 26 at a predetermined pressure.
  • the supplied sealing water 26 has the drain pipe 30 at a high position, it is difficult for bubbles to enter the sealing water 26. As a result, the pressure of the seal water 26 can be adjusted accurately without being affected by bubbles.
  • the lip part 5a at the lower end of the nozzle part 5 where the curtain film 3a is not formed is sealed.
  • the interior of the paint chamber 4 is defined in accordance with the end of the direction, and the chamber seal 11 is formed on the upper part sealed with the lip seal block 13 so as to form the chamber space 16.
  • the paint 3 can be prevented from entering the spaces 16 and 17.
  • the sealing performance is improved, and the paint can be prevented from leaking from the sealed lip portion 5a.
  • the paint 3 does not enter the chamber part space 16 and the nozzle part space 17 positioned above the sealed lip part 5a, the paint 3 does not flow laterally along the lip part 5a, and the width dimension adjustment is performed. Thick coating at the edge portion of the subsequent curtain film 3a can be prevented.
  • the coating material 3 does not enter the chamber space 16 and the nozzle space 17, the internal pressure of the coating material 3 does not act on the sealed lip portion 5a.
  • this part is not contaminated with the paint 3, and the cleaning work for maintenance or the like can be reduced.
  • the sealing water supply unit 27 that supplies the sealing water 26 to the nozzle unit space 17 and the chamber unit space 16 is provided, the coating material 3 can be made difficult to enter the spaces that are not used as the coating chamber 4 and the nozzle unit 5.
  • the chamber part space 16 and the nozzle part space 17 are not soiled. Therefore, the cleaning work at the time of maintenance can be reduced.
  • the seal water supply unit 27 includes a water supply pipe 29 that supplies the seal water 26 and a drain pipe 30 that discharges the seal water 26, and the drain pipe 30 is disposed above the supply water pipe 29.
  • / off valves 31 and 32 are provided in the water supply pipe 29 and the drain pipe 30 for supplying the seal water 26 into the nozzle part space 17 and the chamber part space 16, and the pressure of the seal water 26 in the spaces 16 and 17 is changed to the paint chamber. 4 and the pressure of the paint 3 in the nozzle part 5 are adjusted to the same level, so that the paint 3 in the coating liquid chamber 4 or the nozzle part 5 is likely to leak into the chamber part space 16 or the nozzle part space 17. Even so, the water pressure of the seal water 26 can act on the coating material 3 to make it difficult to enter the chamber space 16 or the nozzle space 17. As a result, it is possible to make it difficult for the paint to leak from the nozzle portion 5 where the curtain film 3a is not formed. Further, since the chamber portion space 16 and the nozzle portion space 17 are not soiled, cleaning work during maintenance can be reduced.
  • a fixture 22 that has a butterfly bolt 24 that presses the lip seal block 13 against the lip portion 5 a from the lower side of the lip seal block 13 and supports the lip seal block 13 so as to be slidable along the width direction of the paint chamber 4. Therefore, the lip seal block 13 can be easily pressed up and down, and the position of the lip seal block 13 in the width direction can be adjusted without pressing the lip seal block 13. Therefore, the position of the lip seal block 13 can be easily set during adjustment. Further, since the lip seal block 13 can be slid and cleaned during cleaning, maintenance work is reduced.
  • the lip seal block 13 and the deckle sheet 12 are formed so as to be integrally assembled, when they are aligned with the position of the end of the curtain film 3a, the adjustment operation can be performed once. Therefore, the adjustment work is reduced as compared with the case of adjusting each.
  • edge guide 6b is formed so as to be integrally assembled together with the lip seal block 13 and the deckle sheet 12, the operation of adjusting the position of the edge guide 6b can be performed at a time. Therefore, the adjustment work is reduced as compared with the case of adjusting each.
  • the chamber seal 11 is formed of a rubber material having elasticity, and holding plates 14 a and 14 b are formed on both sides in the longitudinal direction of the paint chamber 4, so that the chamber seal 11 is deformed by narrow pressure so as to contact the inner wall of the paint chamber 4. Since each is provided, the position can be easily adjusted without bringing the chamber seal 11 into contact with the inner wall before clamping. On the other hand, after the pressure is reduced, the chamber seal 11 comes into contact with the inner wall, and its position is determined by the frictional force. Further, when the chamber seal 11 that has been narrowed comes into contact, the chamber space 16 and the internal space of the paint chamber 4 are defined, and leakage of the paint 3 can be sealed.
  • the DF coater head 1 according to the embodiment of the present invention has been described above.
  • the present invention is not limited to the above-described embodiment, and various modifications and changes can be made based on the technical idea of the present invention. Is possible.
  • tap water or the like is assumed as the seal water 26, but is not limited thereto.
  • the inside of the chamber part space 16 and the nozzle part space 17 can be constantly cleaned by adding a cleaning liquid or the like.
  • leg portions 23 are provided at intervals in the width direction to be stabilized.
  • the leg portions 23 may be integrally formed by connecting them in the width direction.
  • the structure which guides the lip seal block 13 so that it can slide to the width direction using a linear motion apparatus etc. may be sufficient.
  • the right edge guide 6b is moved in the width direction to adjust the width direction dimension of the curtain film 3a, but the left edge guide 6a is moved to move the curtain film 3a.
  • the width dimension can also be adjusted.
  • members such as the lip seal block 13, the deckle sheet 12, and the chamber seal 11 are provided on the left side of the DF coater head 1.
  • both the edge guides 6a and 6b may be movable in the width direction.
  • members such as the lip seal block 13, the deckle sheet 12, and the chamber seal 11 are provided on both the left and right sides of the DF coater head 1.
  • the length in the width direction of the curtain film 3a can be adjusted, as in the structure shown in the present embodiment, and the paint does not leak from the nozzle portion of the portion where the curtain film 3a is not formed, In addition, thick coating at the edge portion of the curtain film 3a can be prevented.

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Abstract

L'invention concerne une tête pour une coucheuse DF (à encrage direct) avec laquelle la longueur d'un film en nappe peut être ajustée dans la direction de sa largeur, l'encre ne fuit pas de la partie d'une buse, la partie ne formant pas le film en nappe, et un empâtement au bord du film en nappe est évité. La tête est munie d'un bloc d'étanchéité à lèvre (13) qui, pour ajuster la dimension en largeur du film en nappe (3a), scelle la lèvre d'extrémité inférieure (5a) de la partie d'une buse (5), la partie ne formant pas le film en nappe (3a) ; une feuille de format (12) insérée dans la buse (5) en correspondance avec l'extrémité du film en nappe (3a) dans la direction de la largeur de celui-ci, pour ainsi former un espace de buse (17) dans une partie supérieure, scellé avec le bloc d'étanchéité à lèvre (13) ; et un joint à chambre (11) qui délimite l'intérieur d'une chambre à encre (4) en correspondance avec l'extrémité du film en nappe (3a) dans la direction de la largeur de celui-ci, pour ainsi former un espace de chambre (16) dans la partie supérieure scellée avec le bloc d'étanchéité à lèvre (13).
PCT/JP2010/000097 2010-01-08 2010-01-08 Tête pour coucheuse df WO2011083518A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN2010800607599A CN102712009A (zh) 2010-01-08 2010-01-08 Df涂布机用头
PCT/JP2010/000097 WO2011083518A1 (fr) 2010-01-08 2010-01-08 Tête pour coucheuse df
JP2011548863A JPWO2011083518A1 (ja) 2010-01-08 2010-01-08 Ｄｆコータ用ヘッド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/000097 WO2011083518A1 (fr) 2010-01-08 2010-01-08 Tête pour coucheuse df

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WO2015025636A1 (fr) * 2013-08-23 2015-02-26 オリジン電気株式会社 Tête de filière et procédé d'application d'un liquide de revêtement
WO2015149864A1 (fr) * 2014-04-04 2015-10-08 Hewlett-Packard Indigo B.V. Application de fluide

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CN113492080B (zh) * 2020-04-01 2022-11-18 阳程科技股份有限公司 可减缓溶剂回流至涂布头内的涂布机及浸泡方法

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WO2013011554A1 (fr) * 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 Machine de revêtement de rideau double
WO2015025636A1 (fr) * 2013-08-23 2015-02-26 オリジン電気株式会社 Tête de filière et procédé d'application d'un liquide de revêtement
JP2015039683A (ja) * 2013-08-23 2015-03-02 オリジン電気株式会社 ダイヘッド及び塗工液塗布方法
WO2015149864A1 (fr) * 2014-04-04 2015-10-08 Hewlett-Packard Indigo B.V. Application de fluide
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US9937515B2 (en) 2014-04-04 2018-04-10 Hp Indigo B.V. Fluid application
US10464097B2 (en) 2014-04-04 2019-11-05 Hp Indigo B.V. Fluid application

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