JP6366371B2 - Printing coating equipment - Google Patents

Description

  The present invention relates to a printing coating apparatus that transfers a transfer liquid such as a coating liquid or ink onto a continuously conveyed web.

  Conventionally, for example, the coating apparatus of Patent Document 1 includes a gravure roll and a chamber having a liquid reservoir that accommodates a part of the gravure roll, and a doctor blade and a seal plate are placed above and below the gravure roll. The liquid reservoir is hermetically sealed by pressing against the gravure roll and facing the outer peripheral surfaces of the gravure roll on both sides in the axial direction. Then, the coating device is configured to coat the measured coating liquid by scraping off the excess coating liquid with the doctor blade on the web to be conveyed by the rotation operation of the gravure roll. .

  By the way, in the coating apparatus as described above, it is necessary to adjust the pressure contact state of the doctor blade against the gravure roll so that it is uniform in the roll axial direction. Must be provided. For this reason, both ends of the chamber in the longitudinal direction are supported by a pair of support mechanisms.

JP 2002-177836 A

  However, since the chamber is generally elongated in the horizontal direction, if both ends in the longitudinal direction are supported by a pair of support mechanisms, the midway portion in the longitudinal direction is likely to bend. In particular, in recent years, there has been an increasing demand for coating liquids on wide webs (those exceeding 1500 mm), and in order to satisfy this demand, the longitudinal dimension of the chamber has become longer, and the length of the chamber The midway part of the direction is more easily bent. As a result, the chamber is seen in plan view due to the pressure contact with the outer peripheral surface of the gravure roll by both side seals, the influence of the liquid pressure of the coating liquid accumulated in the liquid reservoir, and the deformation due to temperature change and deformation due to residual strain after coating. Therefore, the contact state of the doctor blade with the outer peripheral surface of the gravure roll may vary in the longitudinal direction of the chamber. As a result, the amount of the coating liquid adhering to the outer peripheral surface of the gravure roll varies in the direction of the roll rotation axis, and as a result, the coating liquid cannot be uniformly adhered to the web.

  In the printing apparatus, the same problem occurs when both ends in the longitudinal direction of the chamber are supported by a pair of support mechanisms.

  The present invention has been made in view of such a point, and an object of the present invention is to allow the transfer liquid to uniformly adhere to the web when the transfer liquid such as coating liquid or ink is transferred to the web. And it is providing the printing coating apparatus which can utilize the space around a chamber effectively.

  In order to achieve the above-mentioned object, the present invention is characterized in that a device for preventing the chamber from bending in the middle portion in the longitudinal direction of the chamber or a device for correcting the bending of the chamber has been devised. To do.

Specifically, the doctor blade and the seal plate are opposed to the gravure roll from both sides in the roll radial direction of the gravure roll partially immersed in the transfer liquid accumulated in the liquid reservoir of the chamber, and a pair of gravure rolls are pressed against each other. the side seal by Rukoto is pressed against the both end portions of the gravure roll, intended for the liquid reservoir portion is printed coating device being sealed, provided following bending prevention means.

That is, the chamber includes an elongated block-shaped chamber main body and a base plate having a strip-shaped plate portion, and both ends in the longitudinal direction of the chamber main body are supported by a pair of support means, and both ends of the plate portion side is, by being fixed to the chamber body to the central portion as a boundary of the chamber body, the base plate, the anti gravure roll side of the longitudinal intermediate portion of the chamber body, along a longitudinal direction of the chamber body A screw member that presses the chamber at its tip is screwed into a screw hole that is provided so as to extend and is formed at a position corresponding to a midway portion in the longitudinal direction of the plate portion.

The said printing coating apparatus is good also as arrange | positioning so that it may apply with respect to the web conveyed in a perpendicular direction.

The longitudinal ends of the upper Symbol chamber, rotating roller rotation axis is oriented in the longitudinal direction of the chamber is provided rotatably in the said support means, length of the chamber along with supporting the rotary roller from below A roller guide portion may be provided for guiding the chamber in the horizontal direction intersecting the direction so that the chamber approaches and separates from the gravure roll (additional device 1) .

The upper Symbol support means to approximate the chamber with respect to the gravure roll, and, the rotating roller is fixable roller fixing member to the roller guide portion is provided in a closed state the liquid reservoir (Additional device 2) .

At the end of the reaction the gravure roll side of the upper Symbol roller guide portion, when moved away the chamber with respect to the gravure roll, attitude changing unit for changing the attitude of the chamber so that the liquid reservoir side of the chamber pick up is It may be provided (additional contrivance 3) .

Upper Symbol chamber includes a plurality of divided bodies, and a seal member for sealing the split portion in a state where the respective divided bodies are combined, it may be (added devise 4).

According to the present invention, since a space is formed between the two support means Ji Yanba lower, it is possible to effectively utilize the space. Moreover, since the amount of adhesion of the transfer liquid to the outer peripheral surface of the gravure roll is less likely to be non-uniform in the roll rotation axis direction by suppressing the bending of the chamber by the bending suppression means, when transferring the transfer liquid to the web with the gravure roll The transfer liquid can be uniformly attached in the roll rotation axis direction.

It can be moved in the longitudinal direction intermediate portion of the switch Yanba the gravure roll side, if if the chamber is even deflected arcuately in a plan view, it is possible to correct the deflection of the chamber.

Ne by screwing forward and backward movement of the support member, it is possible to finely adjust the pressing amount of the longitudinal intermediate portion of the chamber, it is possible to finely change the amount of movement toward the gravure roll in the longitudinal direction intermediate portion of the chamber.

Furthermore, according to the additional device 1, while maintaining the chamber , the operator can easily separate the chamber from the gravure roll by the rotating roller, while the rotation is performed when the maintenance is completed and printing or coating is performed. Since the roller can easily bring the chamber close to the gravure roll, there is no load on the operation of the chamber. Moreover, since the chamber is separated from the gravure roll during maintenance, the operator can perform maintenance safely.

Further, according to the additional device 2, since the position of the chamber with respect to the gravure roll is accurately determined at the time of coating or printing, the transfer liquid is uniformly adhered to the web in the roll rotation axis direction even after the maintenance of the chamber. be able to.

Furthermore, according to the additional device 3, since the doctor blade and the seal plate are oriented upward, when the operator performs maintenance on the doctor blade and the seal plate attached to the chamber, the maintenance can be easily performed. Can reduce the load.

Furthermore, according to the additional device 4, a chamber composed of a plurality of divided bodies in which a sealing member is interposed at a divided portion is unlikely to return to its original state (shape) due to the viscosity of the sealing member once bent. Even if it exists, the bending of a chamber can be suppressed by a bending suppression means.

Is a front view of a coating apparatus according to implementation embodiments 1. It is A arrow directional view of FIG. It is sectional drawing in the BB line of FIG. It is sectional drawing in the CC line of FIG. It is sectional drawing in the DD line | wire of FIG. FIG. 4 is a view corresponding to FIG. 3 showing a state immediately before the chamber is separated from the gravure roll. It is a figure which shows the state immediately after separating the chamber from the gravure roll after the state of FIG. (A) is the figure which looked at the chamber of the coating device of another form from the back side, (b) is the E arrow line view of (a). (A) is the figure which looked at the chamber of the coating apparatus of another form from the back side, (b) is sectional drawing in the FF line of (a). (A) is the figure which looked at the chamber of the coating apparatus of another form from the back side, (b) is sectional drawing in the GG line of (a).

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiment is merely exemplary in nature.

"Implementation form 1"
1 to 3 show a coating apparatus 1 according to the implementation form 1. The coating apparatus 1 performs coating on the coating surface of the web W that is wound around a plurality of guide rolls 11 and continuously conveyed in the upward direction, and is disposed separately in the horizontal direction. The gravure roll 3 includes a pair of side frames 2 and a gravure roll 3 provided between the side frames 2 in a posture in which a rotation axis is oriented in the horizontal direction and rotatably supported by the side frames 2. A large number of cells (not shown) are recessed in the outer peripheral surface of.

  On one side of the gravure roll 3 in the roll radial direction, a chamber 4 extending in the rotational axis direction of the gravure roll 3 is arranged in parallel, and both longitudinal ends of the chamber 4 are provided with a pair of support mechanisms 5 (support means). ).

  The chamber 4 has an elongated block shape and a chamber body 40 having a substantially U-shaped cross section that opens to the gravure roll 3 side. As shown in FIG. A liquid reservoir 4a for storing L is formed.

  The chamber body 40 includes a first divided body 40a constituting the anti-gravure roll 3 side of the chamber 4, a second divided body 40b positioned on the gravure roll 3 side above the first divided body 40a, and the first It divides | segments into the 3rd division body 40c located in the gravure roll 3 side of the division body 40a lower part.

  A first seal member 9a is provided at a portion where the first divided body 40a is divided with the second divided body 40b, and the first seal member 9a includes the first divided body 40a and the second divided body 40b. It is designed to seal between the two in a combined state.

  On the other hand, a second seal member 9b is provided at a portion where the first divided body 40a is separated from the third divided body 40c, and the second seal member 9b is connected to the first divided body 40a and the third divided body 40b. The space between the body 40c and the body 40c is sealed. Note that the first and second seal members 9a and 9b in FIG. 4 are exaggerated for convenience.

  On the side of the second divided body 40b opposite to the first divided body 40a, a plate-shaped resin doctor blade 41 is fixed by a fixed block 40d so as to extend straight downward.

  The lower end of the doctor blade 41 is pressed against the outer peripheral surface of the gravure roll 3 to seal the downstream side in the roll rotation direction of the liquid reservoir 4a, and the excess coating liquid L adhering to the outer peripheral surface is removed from the gravure. The roll 3 is scraped and measured by the rotating operation.

  On the other hand, on the side of the third divided body 40c opposite to the first divided body 40a, a plate-shaped resin seal plate 42 is fixed by a fixed block 40e so as to extend straight upward.

  The seal plate 42 faces the doctor blade 41 and has an upper end pressed against the outer peripheral surface of the gravure roll 3 to seal the upstream side of the liquid reservoir 4a in the roll rotation axis direction.

  Further, resin side seals 43 are attached to both ends of the chamber 4 in the direction of the rotation axis so as to be able to approach and separate from the gravure roll 3. By press-contacting to the outer peripheral surface, the doctor blade 41 and the seal plate 42 seal the liquid reservoir 4a, and a part of the gravure roll 3 is immersed in the coating liquid L stored in the liquid reservoir 4a. It is like that.

  And the said coating apparatus 1 adheres the coating liquid L to the said web W by rotation operation | movement of the said gravure roll 3, circulating the coating liquid L which accumulates in the said liquid storage part 4a with the coating liquid circulation apparatus which is not shown in figure. It is supposed to let you.

  A base plate 44 having a substantially T-shaped cross section extending along the longitudinal direction of the chamber body 40 is provided on the antigravure roll 3 side in the longitudinal direction of the chamber body 40.

  The base plate 44 extends along the longitudinal direction of the chamber body 40, and has a belt-like first plate portion 44a whose one surface is in close contact with the back surface of the chamber body 40, and the other of the first plate portions 44a. And a strip-shaped second plate portion 44b protruding from the midway portion in the vertical direction to the anti-chamber body 40 side, and both ends in the extending direction of the first plate portion 44a are the center on the anti-gravure roll 3 side in the chamber main body 40 Each of the fixing bolts B <b> 1 is fixed at a position spaced apart from each other.

  In addition, at both end portions of the first plate portion 44a in the extending direction, grip portions 44e that can be gripped by an operator are provided on the side opposite to the chamber main body 40.

  Further, a pair of first screw holes 44c that are spaced apart in the longitudinal direction of the chamber 4 are located at positions corresponding to the midway portions of the first plate portion 44a in the longitudinal direction of the chamber 4 and the upper portion of the first plate portion 44a. A screw member 44d is screwed into the first screw holes 44c so as to be able to advance and retract.

  The base plate 44 and the screw member 44d constitute the pressing means 12 (deflection suppressing means) of the present invention, and the extension direction of the chamber body 40 at the tip of the screw member 44d is screwed. The midway part is pressed against the gravure roll 3 side.

  In addition, an inflow / outflow pipe (not shown) for allowing the coating liquid L to flow into and out of the liquid reservoir 4a is connected to the anti-gravure roll 3 side in the longitudinal direction of the chamber 4, and each of the screw members 44d has The screw members 44d and the tools for operating them are provided at positions where they do not interfere with the inflow / outflow pipe.

  A pair of L-shaped frames 45 are provided on the antigravure roll 3 side at both ends in the longitudinal direction of the chamber 4 so as to be symmetrical in plan view.

  The L-shaped frame 45 extends in a horizontal direction intersecting the first frame 45a and extends in a horizontal direction intersecting the first frame 45a. A plate-like second frame 45b connected to the extending end of 45a, and the axis of rotation of the second frame 45b faces the longitudinal direction of the chamber 4, as shown in FIG. A pair of rotatable rotating rollers 46 are juxtaposed in the horizontal direction intersecting the rotational axis direction of the gravure roll 3.

  In addition, a pair of second screw holes 45c are provided at positions corresponding to the side seals 43 of the first frame 45a so as to be spaced apart from each other.

  An adjusting bolt B2 is screwed into each second screwing hole 45c so as to be able to be screwed / retracted, and the adjusting bolt B2 is screwed and the side seal 43 is pushed at the tip thereof, whereby a gravure roll 3. The pressure contact state of the side seal 43 with respect to the outer peripheral surface can be adjusted.

  The support mechanism 5 is attached to the upper inner surface of the side frame 2 and has a slide rail 51 extending in the horizontal direction intersecting with the gravure roll 3 and a pair of externally slidably fitted to the slide rail 51. And a slide plate 52 having a slider 52a.

  A fluid pressure cylinder 53 is attached below the slide rail 51 inside the side frame 2 so that the piston rod 53a expands and contracts in the horizontal direction toward the gravure roll 3 side.

  The tip of the piston rod 53a is connected to the outer surface of the slide plate 52. When the piston rod 53a expands and contracts, the slide plate 52 slides with respect to the side frame 2.

  A stopper 51a is attached to the end of the slide rail 51 on the gravure roll 3 side so that when the slide plate 52 slides to the gravure roll 3 side, the end abuts to prevent further sliding. It has been.

  A roller support unit 6 is provided on the inner surface of the slide plate 52 via a connection plate 54.

  As shown in FIG. 3, the roller support unit 6 includes a substantially plate-like support plate 61 having a thickness extending in the horizontal direction intersecting with the gravure roll 3. The upper end of the support plate 61 is recessed downward. A roller guide portion 61 a extending along the support plate 61 is formed.

  As shown in FIG. 5, a concave groove 61b extending along the roller guide portion 61a is formed in the upper surface of the roller guide portion 61a.

  The concave groove 61b supports the pair of rotating rollers 46 and guides the chamber 4 toward and away from the gravure roll 3 by guiding in the horizontal direction intersecting the longitudinal direction of the chamber 4. It has become.

  At the end of the roller guide portion 61 a on the side opposite to the gravure roll 3, a vertically long recess 61 c (posture changing portion) that is deeper than the roller guide portion 61 a is provided. When the rotary rollers 46 are sequentially fitted in the vertically long recesses 61c so as to be lined up and down, the posture of the chamber 4 is changed so that the liquid reservoir 4a faces upward. .

  Above the support plate 61, a roller fixing member 62 extending in the horizontal direction intersecting the longitudinal direction of the chamber 4 is provided, and the gravure roll 3 side of the roller fixing member 62 is a gravure roll on the upper surface of the support plate 61. It is pivotally supported by a projecting plate 61d projecting upward on the 3 side by a support shaft 63 extending in the longitudinal direction of the chamber 4.

  A first projecting portion 62a and a second projecting portion 62b project downward from the middle portion of the roller fixing member 62 and the anti-gravure roll 3 side, respectively.

  A mounting hole 62c extending vertically is formed in a portion of the roller fixing member 62 where the first projecting portion 62a is formed, and the fixing pin P1 is slidably inserted into the mounting hole 62c. Has been.

  Further, a fitting recess 61e into which the distal end side of the fixing pin P1 can be fitted is provided in the middle of the roller guide portion 61a.

  Then, in a state where the roller fixing member 62 is rotated to the gravure roll 3 side, the chamber 4 is brought close to the gravure roll 3, the liquid reservoir 4 a is sealed, and the roller fixing member 62 is When the anti-gravure roll 3 is rotated, the projecting ends of the first and second projecting portions 62a and 62b abut against the roller guide portion 61a, and the gravure roll 3 side end portion of the roller guide portion 61a A pair of rotating rollers 46 are respectively fitted in the spaces S1, S2 formed between the first protrusion 62a and between the first and second protrusions 62a, 62b. Then, by sliding the fixing pin P1 downward and fitting the tip of the fixing pin P1 into the fitting recess 61e, the rotating rollers 46 are fixed to the roller guide portion 61a by the roller fixing member 62. It has become.

  Further, when the piston rod 53 a of the fluid pressure cylinder 53 is contracted, the support mechanism 5 that supports the chamber 4 is moved to the anti-gravure roll 3 side by the sliding movement of the slide plate 52, and therefore, between the gravure roll 3 and the chamber 4. A large space is formed so that the gravure roll 3 can be easily maintained.

  Next, the maintenance of the chamber 4 in the coating apparatus 1 will be described.

  First, the operator stops the coating apparatus 1 in operation, and then slides the fixing pin P1 upward from the state shown in FIG. 3 to remove the tip from the fitting recess 61e.

  Next, as shown in FIG. 6, the roller fixing member 62 is rotated to the anti-gravure roll 3 side. Then, the fixing of each rotating roller 46 to the roller guide portion 61a is released.

  Thereafter, the operator holds the handle portion 44e and pulls the chamber 4 to the anti-gravure roll 3 side. Then, each rotation roller 46 is guided by each roller guide portion 61 a and the chamber 4 is separated from the gravure roll 3.

  Further, the operator moves the chamber 4 to the end of the roller guide portion 61a on the side opposite to the anti-gravure roll 3, and then fits the rotating rollers 46 into the vertically long concave portions 61c in order. Then, the posture of the chamber 4 is changed so that the liquid reservoir 4a faces upward. Thus, since the doctor blade 41 and the seal plate 42 are in an upward posture, when the operator performs maintenance on the doctor blade 41 and the seal plate 42 attached to the chamber 4, the maintenance can be easily performed. Can reduce the load on the person.

  When the maintenance of the chamber 4 is completed, the operator lifts the chamber 4 upward by holding the handle 44e, and changes the posture of the chamber 4 so that the liquid reservoir 4a faces the gravure roll 3 side. Each rotating roller 46 is placed on the part 61a.

  Thereafter, the operator pushes the chamber 4 toward the gravure roll 3 side. Then, each rotation roller 46 is guided by each roller guide portion 61a, the chamber 4 approaches the gravure roll 3, and the doctor blade 41, the seal plate 42 and each side seal 43 come into contact with the outer peripheral surface of the gravure roll 3. Thus, the liquid reservoir 4a is sealed.

  Then, the roller fixing member 62 is rotated to the gravure roll 3 side, and the fixing pin P1 is slid downward, and the tip thereof is fitted into the fitting recess 61e. Then, the pair of rotating rollers 46 is fitted in the spaces S1 and S2, and the chamber 4 is fixed to the roller guide portion 61a. Therefore, since the position of the chamber 4 with respect to the gravure roll 3 is accurately determined at the time of coating, the coating liquid can be uniformly attached to the web W in the roll rotation axis direction even after the maintenance of the chamber 4. .

  As described above, the operator can easily separate the chamber 4 from the gravure roll 3 by the rotating roller 46 when performing maintenance of the chamber 4, while the rotating roller 46 is used when coating is performed after the maintenance is completed. Thus, the chamber 4 can be easily brought close to the gravure roll 3, so that no load is imposed on the operation of the chamber 4. Moreover, since the chamber 4 is separated from the gravure roll 3 during maintenance, the operator can perform maintenance safely.

As described above, according to the implementation mode 1, since a space is formed between the chamber 4 under the two support mechanism 5, it is possible to effectively utilize the space. Moreover, since the amount of coating liquid applied to the outer peripheral surface of the gravure roll 3 is less likely to be uneven in the roll rotation axis direction by suppressing the bending of the chamber 4 by the pressing means 12, the gravure roll 3 is applied to the web W. When coating the working liquid, the coating liquid can be uniformly attached in the roll rotation axis direction.

  In addition, since the middle part in the longitudinal direction of the chamber 4 can be moved toward the gravure roll 3 by the pressing means 12, even if the chamber 4 is bent into an arcuate shape in plan view, the bending of the chamber 4 is corrected. be able to.

  Furthermore, since the pressing amount of the middle part in the longitudinal direction in the chamber 4 can be finely adjusted by the screwing and retreating operation of the screw member 44d, the moving amount toward the gravure roll 3 in the middle part in the longitudinal direction in the chamber 4 can be finely changed.

  In addition, the chamber 4 formed of the first, second, and third divided bodies 40a, 40b, and 40c, in which the seal members 9a and 9b are interposed at the divided portions, is deformed once due to the viscosity of the seal members 9a and 9b. Although it is difficult to return to the state (shape), even with such a chamber 4, the bending of the chamber 4 can be suppressed by the pressing means 12.

"Implementation form 2"
FIGS. 8A and 8B show a chamber 4 of another form of the coating apparatus 1. In the second embodiment, only a part of the structure of the chamber 4 is different from that of the first embodiment, and the others are the same as those of the first embodiment. Therefore, only the parts different from the first embodiment will be described below.

  A reinforcing plate 47 extending along the longitudinal direction of the chamber body 40 is attached to the anti-gravure roll 3 side in the longitudinal direction of the chamber body 40 of the second embodiment.

  The structure X1 (deflection suppression means) of the portion of the chamber 4 to which the reinforcing plate 47 is attached has a cross-sectional modulus of the cross section that intersects the longitudinal direction of the chamber 4 being the largest in the entire region extending in the longitudinal direction of the chamber 4. It has a cross-sectional shape.

Therefore, according to the implementation mode 2, since the longitudinal direction intermediate portion of the chamber 4 by the structure X1 is hardly bent on its structure, even in a state of supporting the longitudinal end of the chamber 4 by a pair of support mechanisms 5 It is possible to suppress the chamber 4 from being bent.

  In addition, since the section modulus of the midway portion in the longitudinal direction in the chamber 4 is increased by simple attachment processing, the processing cost of the coating apparatus 1 can be kept low.

"Implementation form 3"
FIGS. 9A and 9B show a chamber 4 of another form of the coating apparatus 1. In the third embodiment, only the structure of the reinforcing plate 47 is different from that of the second embodiment, and the others are the same as those of the second embodiment. Therefore, only the parts different from the second embodiment will be described below.

  The reinforcing plate 47 of the third embodiment has a substantially H-shaped cross section that intersects the longitudinal direction of the chamber 4, and concave and convex grooves 47 a extending in the longitudinal direction of the chamber 4 are formed on the upper and lower surfaces, respectively.

  As described above, the reinforcing plate 47 of the third embodiment is different in cross-sectional shape from the reinforcing plate 47 of the second embodiment, but the middle part in the longitudinal direction of the chamber 4 is difficult to bend due to its structure as in the second embodiment. It is possible to prevent the chamber 4 from being bent in a state where both ends in the longitudinal direction of the chamber 4 are supported by the pair of support mechanisms 5.

"Implementation form 4"
FIGS. 10A and 10B show a chamber 4 of another form of the coating apparatus 1. In the fourth embodiment, only a part of the structure of the chamber 4 is different from that of the first embodiment, and the others are the same as those of the first embodiment. Therefore, only the parts different from the first embodiment will be described below.

  The first divided body 40a of the fourth embodiment is thicker on the anti-gravure roll 3 side than the first divided body 40a of the first embodiment, and the surface on the anti-gravure roll 3 side has a rectangular recess. Four portions 47 b are formed at predetermined intervals in the longitudinal direction of the chamber 4.

  That is, three protrusions 47c extending in the vertical direction intersecting with the longitudinal direction of the chamber 4 are formed between the four recesses 47b, and the protrusions located at the center of the three in the chamber 4 are formed. The portion of the structure X2 including the portion 47c (deflection suppressing means) is located in the middle of the chamber 4 in the longitudinal direction, and the section modulus of the cross section intersecting the longitudinal direction of the chamber 4 extends in the longitudinal direction of the chamber 4. It has the largest cross-sectional shape in the entire region.

Therefore, according to the implementation mode 4, it is possible to increase the section modulus of the longitudinal intermediate portion of the chamber 4 is reduced with a simple structure parts than the coating apparatus 1 of the embodiment 2.

In the implementation form 4, protrusions 47c extend in a direction crossing the longitudinal direction of the chamber 4, in the entire region section modulus in the longitudinal direction intermediate portion of the chamber 4 is across the longitudinal direction of the chamber 4 If the maximum value is obtained, the protrusion 47c may have a shape extending in the longitudinal direction of the chamber 4.

Also, in the implementation according to the first to fourth, although the respective end portions in the longitudinal direction are two rotating rollers 46 are provided in the chamber 4, it may be provided only one rotary roller 46, three or more A rotating roller 46 may be provided.

Furthermore, in the implementation according to the first to fourth, although the chamber 4 forms a divided structure, can also be applied to a chamber 4 of the integral structure.

In addition, the applied structure implementation form 1 to 4 the coating apparatus 1, can be diverted to a printing apparatus that performs printing in ink on the web W.

  The present invention is suitable for a printing coating apparatus that transfers a transfer liquid such as a coating liquid or ink onto a continuously conveyed web.

DESCRIPTION OF SYMBOLS 1 Coating apparatus 3 Gravure roll 4 Chamber 4a Liquid storage part 5 Support mechanism (support means)
9a, 9b Seal member 12 Pressing means (deflection suppressing means)
40 chamber main body 40a first divided body 40b second divided body 40c third divided body 41 doctor blade 42 seal plate 43 side seal 44 base plate 44c first screwing hole 44d screw member 46 rotating roller 47 reinforcing plate 47c protrusion 61a roller Guide part 61c Longitudinal recess (posture change part)
62 Roller fixing member L Coating liquid (transfer liquid)
X1, X2 structure (deflection suppression means)

Claims (6)

A doctor blade and a seal plate are opposed to each other from both sides in the roll radial direction of a gravure roll partially immersed in a transfer liquid collected in a liquid reservoir of a chamber, and a pair of side seals are attached to the gravure roll. the Rukoto is pressed against the opposite ends of the roll, a printing coating device in which the liquid reservoir is sealed,
The chamber is
An elongated block-shaped chamber body;
A base plate having a strip-shaped plate portion;
With
Both ends in the longitudinal direction of the chamber body are supported by a pair of support means ,
Both base sides of the plate part are fixed to the chamber body with the central part of the chamber body as a boundary, so that the base plate is placed on the antigravure roll side of the chamber body in the longitudinal direction of the chamber body. Provided to extend along the longitudinal direction,
A printing coating apparatus, wherein a screw member that presses the chamber at a tip thereof is screwed into a screwing hole formed at a position corresponding to a midway portion in the longitudinal direction of the plate portion . In the printing coating apparatus according to claim 1,
A printing coating apparatus, wherein the printing coating apparatus is arranged to coat a web conveyed in a vertical direction . In the printing coating apparatus of Claim 1 or Claim 2,
At both ends in the longitudinal direction of the chamber, a rotation roller having a rotation axis oriented in the longitudinal direction of the chamber is rotatably provided.
The support means is provided with a roller guide portion that supports the rotating roller from below and guides the chamber in the horizontal direction intersecting the longitudinal direction of the chamber so that the chamber approaches and separates from the gravure roll. A printing coating apparatus characterized by comprising: In the printing coating apparatus according to claim 3,
The support means is provided with a roller fixing member capable of fixing the rotating roller to the roller guide portion in a state where the chamber is brought close to the gravure roll and the liquid reservoir is sealed. A printing coating device characterized by In the printing coating apparatus according to claim 3 or 4,
At the end of the roller guide portion on the side opposite to the gravure roll, there is provided a posture changing unit that changes the posture of the chamber so that the liquid reservoir side of the chamber faces upward when the chamber is separated from the gravure roll. Print coating apparatus characterized by being made. In the printing coating apparatus as described in any one of Claim 3 to 5,
The chamber includes a plurality of divided bodies and a sealing member that seals the divided portions in a state where the divided bodies are combined.

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