KR20130129075A - Coating apparatus - Google Patents

Abstract

In the chamber type coating apparatus, good seal performance of the slide contact portion of the plate copper and the seal member is provided.
The chamber 18 of the coating apparatus 1 is equipped with the chamber main body 30, the side seal 32, the upper blade 34, and the lower blade 36, and defines the coating liquid chamber 28 in the side of a plate surface. do. Smooth surfaces are formed on both outer sides of the plate surface in the plate cylinder 14, and the tip surface of the side seal 32 slides in contact with the plate cylinder 14 when it rotates. The upper blade 34 extends in the rotation axis direction at the front end of the rotational direction of the plate 14 in the chamber main body 30. The lower blade 36 extends in the rotational axis direction at the rear end of the rotational direction of the plate 14 in the chamber main body 30. In this configuration, a cleaning blade 56 is provided for scraping off excess coating liquid adhered to the smooth surface of the plate cylinder 14.

Description

Coating apparatus

This application claims priority based on Japanese Patent Application No. 2012-113544 for which it applied on May 17, 2012. The entire contents of which are incorporated herein by reference.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating apparatus, and more particularly, to an apparatus for coating a sheet material by supplying a coating liquid such as a coating agent, ink, or adhesive to a plate cylinder.

Conventionally, in a coating machine, a gravure printing machine, etc., coating liquids, such as a coating material and ink, are affixed on the plate surfaces of plate rolls, such as a coating roll and a printing plate copper, and transfer a coating liquid by pressurizing a sheet material to the plate surface. (V) Patent Document 1). Such a coating machine is provided with the chamber which defines the coating liquid chamber on the side of a pan cylinder. The chamber includes flexible side seals at both side ends thereof, and a seal plate extending at both side seams at a lower end position. Thereby, the seal | sticker between a pan and a chamber is ensured, and the leakage of the liquid from a coating liquid chamber is suppressed. The upper edge of the chamber is provided with an upper blade called a doctor blade so as to cross both side seals. This doctor blade removes the excess coating liquid adhering to the plate surface, so that coating of a uniform film thickness to the sheet material is achieved.

This chamber type coating plant has the advantage that coating defects are less likely to occur due to less scattering of the coating liquid, and the working environment can be improved because of less volatilization of solvent components and less diffusion of the smell of the coating liquid. have. On the other hand, there is also a problem that occurs because the side seal is in sliding contact with the smooth surface on the outside of the plate surface. In other words, the coating liquid penetrated into the slide contact portion between the side seal and the smooth surface tends to dry due to the frictional heat of the slide contact portion, and the solute component (nonvolatile component) of the coating liquid may be solidified. As a result, the seal performance between the side seal and the smooth surface fell, and the coating liquid might leak from the part. In order to solve such a problem, in the invention described in Patent Literature 1, the solvent component of the coating liquid is separately supplied to the slide contact portion of the side seal and the smooth surface to lower the friction coefficient of the slide contact portion, thereby solidifying the solute component. We propose a technique to prevent it.

Japanese Patent Publication No. 2000-168051

However, since the side seal originally suppresses leakage of the coating liquid, it is necessary to maintain the slide contact force with the smooth surface to some extent in order to secure the seal function. For this reason, it is difficult to reduce the friction force only by supplying a solvent component. In addition, the active addition of the solvent component leads to an increase in the volatilization and the diffusion of the smell of the solvent, thereby reducing the advantages of the chamber type coating apparatus.

In addition, the above-described chamber-type coating machine is provided not only in a coating machine and a gravure printing machine but also in the laminating apparatus which manufactures a laminate film, for example. That is, a laminate film is widely used for packaging such as food packaging, packaging for medical products and drugs, packaging for cosmetics and the like. The laminate film is coated with an adhesive to a base sheet such as a resin film to bond aluminum foil or the like. It is manufactured by. The same coating apparatus may be used also for the coating of this adhesive agent. In particular, such an adhesive is likely to cause liquid leakage since the viscosity as the coating liquid is relatively low.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide good seal performance of a slide contact portion between a plate copper and a seal member in a chamber type coating apparatus.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, the coating apparatus which concerns on one aspect of this invention is a coating apparatus which coats by supplying liquid to the plate surface of a rotating copper plate, Comprising: As a chamber which defines a liquid chamber to the side of a plate surface, A chamber main body, It is provided at the side end of a chamber main body, The seal member whose front end surface slides in contact with the smooth surface which extends outward in the rotation axis direction of a plate surface, The 1st blade which extends in the rotation direction front-end | tip of a plate copper in a chamber main body, and a chamber main body And a chamber having a second blade extending to the rear end of the plate in the rotational direction, and a scraping member for scraping off excess coating liquid attached to the smooth surface.

According to this aspect, since slide friction occurs between the smooth surface of the plate and the distal end surface of the seal member, the coating liquid attached to the slide contact portion tends to dry, so that the excess adhered to the smooth surface by the scraping member. Since the coating liquid of the coating is scraped off, the solute component is prevented from being solidified in the slide contact portion.

Another aspect of the present invention is also a coating device. This apparatus is a coating apparatus which performs coating by supplying liquid to the plate surface of a rotating copper plate, and is a chamber which defines a liquid chamber on the side of a plate surface, and is provided in the chamber main body and the side end of a chamber main body, and it moves to the outer side of the plate surface rotation direction. The seal member whose front end surface slides in contact with the following smooth surface, the 1st blade extended to the front-end | route direction of the plate | board cylinder in a chamber main body, and the 2nd blade extended to the rotational back end of the plate | board cylinder in a chamber main body. It includes a chamber having a. The seal member is made of a member having flexibility, and at least one of the first blade and the second blade has its side end portion pressed against the widthwise inner portion of the tip end surface of the seal member, and the seal member has its tip end face. It is comprised so that the width direction outer side part of the front end surface may isolate | separate the clearance gap with the said at least one side end part, and the exterior of a chamber.

According to this aspect, the side end portion of the first blade is pressed to the widthwise inner portion of the seal member, and the side end portion of the second blade is pressed to the widthwise inner portion of the seal member, whereby the widthwise outer portion of the seal member is It functions as an outer wall. As a result, lateral leakage of the coating liquid is prevented or suppressed.

According to the present invention, in the chamber type coating apparatus, it is possible to provide good seal performance of the slide contact portion between the plate copper and the seal member.

1 is a perspective view showing a schematic configuration around a chamber constituting a potter's wheel according to a first embodiment.
It is a figure which shows typically the system structure of a coating apparatus.
It is a figure which shows typically the detail of the seal part in a chamber.
4 is an explanatory diagram showing a mounting method of a side seal.
5 is an enlarged view of a portion C of FIGS. 4A and 4C.
6 is an explanatory view showing the blade unit periphery.
7 is an explanatory diagram showing a periphery of a blade unit according to the second embodiment.
8 is a diagram schematically showing details of the seal portion in the chamber according to the third embodiment.

The porcelain milling apparatus which concerns on one Embodiment is comprised as a chamber type coating apparatus which coats by supplying a liquid to the plate surface of a rotating copper plate. The chamber includes a chamber main body, a seal member, a first blade, and a second blade, and defines a coating liquid chamber on the side of the plate surface. The seal members are provided at both side ends of the chamber body, respectively. Smooth surfaces are formed on both outer sides of the plate surface in the plate cylinder, and the tip surface of the seal member slides in contact with the plate cylinder in rotation. The first blade extends from the one seal member to the other seal member in the rotation axis direction of the plate cylinder in the rotation direction front end of the plate in the chamber main body. On the other hand, the second blade extends from the one seal member to the other seal member in the rotation axis direction of the plate cylinder at the rear end portion of the rotation direction of the plate cylinder in the chamber main body. That is, a coating liquid chamber in which the coating liquid is rapidly drained is formed in a space surrounded by the chamber body, the pair of sealing members, the first blades and the second blades, and the plate cylinder. In such a configuration, a scraping member for scraping off excess coating liquid adhered to the smooth surface of the plate is provided. The scraping member may be provided outside the chamber, although the tip edge thereof faces the smooth surface of the plate.

The seal member may be made of a member having flexibility. The side end portion of the first blade is pressed to the widthwise inner portion of the seal member, and the side end portion of the second blade is pressed to the widthwise inner portion of the seal member, whereby the widthwise outer portion of the seal member rises relatively, You may comprise so that it may function as an outer wall. In such a configuration, it is possible to suppress the occurrence of liquid leakage on the outer sides of the first blade and the second blade. However, depending on the viscosity of the coating liquid, it is assumed that the coating liquid also leaks out and adheres to the outer portion. Even in this case, since the excess coating liquid on the outer side portion is scraped off by the scraping member, it is possible to prevent or suppress the solidification of the coating liquid and hence the deterioration of the seal performance even in the portion where the first blade is missing have.

The scraping-out member should just be provided in the missing part of a 1st blade with respect to the rotating shaft direction of a plate cylinder. Further, an elastic pressing mechanism for elastically pressing the scraping-out member against the plate may be further provided. For example, a biasing force may be applied to the scraping member by a spring mechanism. By such a structure, scraping off of coating liquid can be promoted. In this case, since the frictional force between the scraping member and the plate is increased, it is preferable to provide a lubricant supply device for supplying a solvent component of the coating liquid as a lubricant between the leading edge of the scraping member and the side surface of the plate. In addition, if a solid substance of the coating liquid adheres to the scraping member, the scraping function may be impaired. Therefore, it is preferable to provide a removal mechanism for removing the solute component of the coating liquid attached to the scraping member.

EMBODIMENT OF THE INVENTION Hereinafter, the Example which actualized this invention is described in detail, referring drawings.

[First Example]

FIG. 1: is a perspective view which shows schematic structure of the periphery of the chamber which comprises the metrology tool which concerns on 1st Example. 2 is a diagram schematically illustrating a system configuration of a coating apparatus.

As shown in FIG. 1, the coating apparatus 1 of a present Example comprises a part of a laminating apparatus, and coats the adhesive agent (glue) as a coating liquid to the base material sheet 10 in the step before forming a laminated film. . That is, the base material 10 conveyed from an upstream process is pressurized to the plate | board 14 by the press 12, and the coating liquid uniformly apply | coated to the board surface 16 of the plate | board 14 is described. It transfers to the one side surface of the sheet | seat 10. In order to apply a coating liquid to the plate surface 16, the chamber 18 containing a coating liquid is arrange | positioned in the side of the plate | plate 14.

As also shown in FIG. 2, the tank 20 which stores a coating liquid is provided, and is connected with the chamber 18 via the supply pipe 22 and the return pipe 24. As shown in FIG. That is, the coating liquid is pumped out of the tank 20 by driving the pump 26, and is supplied to the coating liquid chamber 28 in the chamber 18 through the supply pipe 22. In addition, the coating liquid in the coating liquid chamber 28 is returned to the tank 20 via the return pipe 24. In the operation of the coating apparatus 1, the coating liquid circulates between the tank 20 and the chamber 18 in this way and is applied to the plate surface 16 of the plate 14 in the process.

The chamber 18 includes a chamber body 30, a pair of side seals 32 (corresponding to a "seal member"), an upper blade 34 (corresponding to a "first blade"), and a lower blade 36 ( Corresponding to the "second blade". The chamber main body 30 generally has the rectangular parallelepiped shape of C shape, and the opening part is arrange | positioned facing the side surface of the plate | board 14. As shown in FIG. The pair of side seals 32 are formed to cover both side ends of the chamber body 30, respectively. The side seal 32 is made of a synthetic resin foam material and the like, and its front end surface is a curved surface along the side surface of the plate 14. A smooth surface 17 is connected to the outer side of the plate surface 16 of the plate cylinder 14 (see FIG. 1), and the front end surface of the side seal 32 is in sliding contact with the smooth surface 17.

On the other hand, the upper blade 34 is provided at the upper end of the chamber main body 30, and the lower blade 36 is provided at the lower end. The upper blade 34 is made of a rectangular steel sheet material or the like, and is provided in the rotational direction front end of the plate cylinder in the chamber main body 30 as indicated by the arrow in the figure to indicate the direction of rotation of the plate cylinder 14. The upper blade 34 extends in the rotational axis direction of the plate cylinder 14 so as to extend from one side of the pair of side seals 32, and the leading edge (lower edge) slides on the circumferential surface of the plate cylinder 14. Contact. On the other hand, the lower blade 36 is made of a plate material made of a rectangular synthetic resin, or the like, and is provided at the rear end of the plate cylinder in the chamber body 30 in the rotational direction, and is formed from one of the pair of side seals 32. It extends in the rotation axis direction of the plate | board 14 so that it may be spread on the other side, and the front-end | tip edge (upper-edge) slide-contacts the circumferential surface of the plate | board 14. Each blade is fixed to the chamber main body 30 by the blade press plate 38.

3 is a diagram schematically showing the details of the seal portion in the chamber. Fig. 3 (A) shows the structure around the side seal viewed from the opening of the chamber, and Fig. 3 (B) is a view seen in the direction of arrow A. 4 is an explanatory diagram showing a mounting method of a side seal. 4 (A)-(D) show the mounting process, and FIG. 4 (B) and (D) show the cross section of arrow B-B direction of FIG. 3 (A). 5 is an enlarged view of a portion C of FIGS. 4A and 4C.

As shown to FIG. 3 (A), the side seal 32 is arrange | positioned so that the side edge opening part of the chamber main body 30 may be covered. The side seal 32 is clamped between the chamber body 30 and the seal press plate 40 by fastening the seal press plate 40 disposed outside thereof to the chamber body 30 through a bolt (not shown). It is fixed. The seal presser plate 40 is processed so that the steel plate may follow the shape of the side seal 32. The side ends of the pair of blade press plates 38 extend to the outer ends of the side seals 32, respectively, to prevent the side seals 32 from falling out to the plate cylinder 14 side.

The upper edge 34 of the upper edge 34 is overlapped with the front end face of the side seal 32, and the side edge is configured so as to be located between the inner end and the outer end of the side seal 32. Specifically, the overlap length L is about 1/2 of the width W of the side seal 32. As shown in FIG. 3 (B), the upper edge 34 of the upper edge 34 is pressed against the upper surface of the side seal 32 so that there is almost no step with the outer portion of the side seal 32. Similarly, the lower edge 36 is configured such that the side end portion is located in the middle between the inner end and the outer end of the side seal 32. The lower edge 36 also has a side end portion pressed against the upper surface of the side seal 32 so that there is almost no step with the outer portion of the side seal 32.

That is, when positioning the side seal 32, as shown to FIG. 4 (A), the side seal 32 is carried so that the side end of the chamber main body 30 may be covered. At this time, as shown in FIG.4 (B), the lower surface of the upper blade 34 and the lower blade 36 and the upper surface of the side seal 32 abut. From this state, the side seal 32 is slightly displaced to the plate 14, i.e., the upper blade 34 and the lower blade 36 side, so that the line of the side seal 32 can be seen as shown in FIG. The cross section becomes slide contactable with the smooth surface 17 of the plate 14.

At this time, as shown in FIG.4 (D), the upper blade 34 and the lower blade 36 are pressed by the width direction inner part 32a of the side seal 32, and with respect to the side seal 32 It is slightly buried. As a result, the widthwise outer portion 32b of the side seal 32 becomes an outer wall, thereby preventing the coating liquid from leaking from the coating liquid chamber 28, thereby preventing it from functioning as a seal (see the thick arrow in the drawing).

That is, as shown in FIG. 5 (A), for example, only the upper edge 34 is attached to the upper surface of the side seal 32, and the smooth surface of the plate 14 is interposed by the upper edge 34. A gap CL1 is formed between the 17 and the side seal 32. As shown in FIG. 5B, even when the curved portion of the side seal 32 is shortened to the smooth surface 17, the smooth surface 17 and the side seal ( A gap CL2 is formed between the 32. When such a gap is formed, the coating liquid leaks out through the gap. However, the same applies to the lower blade 36.

In this regard, in the present embodiment, as shown in Fig. 5C, the side ends of the upper edge 34 are buried in the side seal 32, so that the front end surface and the upper edge of the side seal 32 are closed. The leading edge of the 34 is in sliding contact with the smooth surface 17. The same applies to the lower blade 36. As a result, a gap is not formed in the side end of the chamber 18, and the leak of a coating liquid can be prevented.

Returning to FIG. 2, the opening of the chamber body 30 is thus surrounded by a pair of side seals 32, an upper blade 34, and a lower blade 36, and each of the distal ends thereof is a circumferential surface of the plate cylinder 14. By sliding contact with the glass, the coating liquid chamber 28 closed with respect to the exterior is formed. The coating liquid introduced into the coating liquid chamber 28 is supplied to and attached to the plate surface 16 of the rotating plate 14. The side seal 32 and the lower blade 36 seal so that the coating liquid of the coating liquid chamber 28 may not leak to the outside. The upper blade 34 scrapes excess coating liquid from the plate 14 and maintains a uniform coating state of the coating liquid on the plate surface 16.

By the way, it is possible to suppress the leakage of the liquid to the outside of the chamber 18 by the above configuration, but the solute component of the coating liquid is the sliding contact portion due to the frictional heat between the side seal 32 and the plate 14. If it solidifies, there exists a possibility that it may lead to the fall of the seal performance of the side seal 32. As shown in FIG. Therefore, in the present embodiment, the scraper 50 is provided on the opposite side to the chamber 18 of the plate cylinder 14.

The scraping device 50 includes a blade unit 52 and a lubricant supply device 54. The blade unit 52 includes the cleaning blade 56 (corresponding to the "scraping member") and the cleaning blade 56 toward the smooth surface 17 whose front edge is directed to the smooth surface 17 of the plate cylinder 14. And a spring mechanism 58 (corresponding to the " elastic pressure mechanism ") for biasing, and a removal mechanism 60 for removing the solute component of the coating liquid attached to the cleaning blade 56.

The lubricant supply device 54 supplies a tank 62 for storing a solvent component of the coating liquid as a lubricant, a supply pipe 64 extending from the tank 62 to the cleaning blade 56, and a lubricant in the tank 62. And a pressure feeding device 66 that feeds to 64. At the tip of the supply pipe 64, a nozzle directed to the cleaning blade 56 is provided. In the present embodiment, however, the lubricant is dropped to the cleaning blade 56 in small amounts to minimize the effect of volatilization of the solvent component on the working environment.

FIG. 6 is an explanatory view showing the blade unit periphery and corresponds to the view seen from the arrow D direction in FIG. 2. The cleaning blade 56 is provided at least in the missing portion of the upper blade 34 with respect to the rotation axis direction of the plate cylinder 14. Specifically, as shown, the cleaning blade 56 has a width slightly larger than the smooth surface 17 so that its leading edge can abut at least the entire smooth surface 17 of the plate cylinder 14. The cleaning blade 56 is pressed against the smooth surface 17 to scrape off the excess coating liquid adhered to the smooth surface 17. In that case, an appropriate amount of coating liquid is dripped from the nozzle of the supply pipe 64 so that frictional heat may be suppressed. For this reason, the solid substance of a solute component can be prevented from adhering to the smooth surface 17, and the fall of the seal performance of the side seal 32 can be prevented.

Returning to FIG. 2, the cleaning blade 56 is pressurized with respect to the plate | board 14 by the spring mechanism 58, and scrapes excess coating liquid to the leading edge. At this time, the removal mechanism 60 is operated so that the solute component of the scraped coating liquid does not stay and solidify at the blade edge. In this embodiment, the hook member extending from the main body of the blade unit 52 as the removal mechanism 60 extends to the vicinity of the tip of the cleaning blade 56. By pulling the cleaning blade 56 toward the front (left side in the drawing) at an appropriate timing by the worker, the cleaning blade 56 is slid forward. Thereby, the solute component can be removed in the form which the tip of the removal mechanism 60 scrapes off the coating liquid adhering to the upper end surface of the cleaning blade 56.

As described above, in the coating apparatus 1 of the present embodiment, as shown in FIG. 3, the side ends of the upper blade 34 and the lower blade 36 are inward in the width direction of the side seal 32. By pressurizing to the part, the width direction outer part of the side seal 32 functions as an outer wall, and the horizontal leakage of a coating liquid is prevented or suppressed. Further, since slide friction occurs between the smooth surface 17 of the plate 14 and the front end surface of the side seal 32, the coating liquid adhered to the slide contact portion tends to dry. Since the excess coating liquid attached to the smooth surface 17 is scraped off by), solidification of the solute component on the slide contact portion is prevented or suppressed.

[Example 2]

The factory setting according to the present embodiment is substantially the same as the first embodiment except that the configuration of the cleaning blade is different. For this reason, the same code | symbol is attached | subjected about the component same as 1st Embodiment, and the description is abbreviate | omitted. 7 is an explanatory diagram showing the blade unit periphery according to the second embodiment, and corresponds to FIG. 6. Fig. 7A shows the structure of the cleaning blade according to the second embodiment, and Fig. 7B shows a modification thereof.

As shown in FIG. 7A, in the present embodiment, the leading edge of the cleaning blade 256 abuts against the missing portion of the upper blade 34 on the smooth surface 17, but the smooth surface 17 It has a width that does not extend to the inner end of. In other words, the cleaning blade 256 has a configuration that does not touch the entire width of the smooth surface 17. The minimum configuration is provided under the concept that the cleaning blade 256 fills the range where the coating liquid cannot be scraped off by the upper blade 34 while being the slide contact portion with the side seal 32 on the smooth surface 17. It is to be provided.

In addition, in a modified example, as shown to FIG. 7 (B), you may install so that the cleaning blade 258 may extend over the whole width | variety of the plate | board 14. As shown in FIG. In that case, although the whole edge of the front-end | tip of the cleaning blade 258 may be made to slide-contact to the circumferential surface of the plate | board 14, it corresponds to the location corresponding to FIG. 6 or FIG. 7 (A) so that consumption of a lubricant may not increase. You may adjust the shape of the blade edge | tip so that a part may contact slide limitedly. Since it is thought that solidification of a coating liquid is easy to generate | occur | produce in the smooth surface 17 with a large friction force, you may limit the part scraped off by such a cleaning blade.

[Example 3]

The coating apparatus according to the present embodiment is substantially the same as the first and second embodiments except that the blade unit 52 is provided in the chamber. For this reason, the same code | symbol is attached | subjected about the same component part as 1st, 2nd Example, and the description is abbreviate | omitted. 8 is a diagram schematically showing details of the seal portion in the chamber according to the third embodiment. Fig. 8A shows the structure around the side seal seen from the opening side of the chamber, and Fig. 8B is a view seen in the direction of arrow A. Figs.

In this embodiment, the blade unit 52 is provided in the chamber 318. Specifically, as shown in FIG. 8A, a recess 330 cut outward is formed in the middle portion of the upper blade 34 and the lower blade 36 in the side seal 332. On the other hand, the slit 341 is formed in the opposing part of the press plate 340 with the recessed part 330, and the convex part 342 which fits with the recessed part 330 is formed in the lower end part. And the blade unit 52 is provided so that it may be accommodated in the part of the slit 341.

As shown in FIG. 8B, the leading edge of the cleaning blade 56 is arranged to be pressed against the smooth surface 17 of the plate 14. Also in this embodiment, the spring mechanism 58 imparts an appropriate biasing force to the cleaning blade 56. As shown in FIG. 8 (A), the cleaning blade 56 is located on the outer portion of the side seal 332, and its inner end position is inward of the side edge positions of the upper blade 34 and the lower blade 36. Chamber main body 30 side) (L1 < L). On the other hand, the width of the leading edge of the cleaning blade 56 is set larger than the lengths of the outer edges of the upper blade 34 and the lower blade 36 in the side seal 332 (W1> W-L).

With this structure, the cleaning blade 56 scrapes off the range where the coating liquid cannot be scraped off by the upper blade 34 while being the slide contact portion with the side seal 332 on the smooth surface 17. It is possible. On the other hand, by arranging the blade unit 52 outside the side seal 332, the seal performance of the side seal 332 is not impaired.

In the above, this invention was demonstrated based on the Example. This embodiment is only an example, and it is understood by those skilled in the art that various modifications can be made to the combination of each of these components or each processing process, and such modifications are also within the scope of the present invention.

In the above embodiment, as shown in Figs. 6 and 7, an example in which the widths of the cleaning blades 56 and 256 are set so that their front edges can abut against the outer ends of the smooth surface 17 is shown. In a modification, even if the tip edge of the cleaning blade does not reach the outer end of the smooth surface 17, it may be a width that extends to the outer end of the side seal.

In the above embodiment, as shown in FIG. 2, one arrangement example in the case where the cleaning blade 56 is disposed outside the chamber 18 is illustrated, but may be disposed at a different position. For example, you may arrange | position between the upper blade 34 and the press 12, and may arrange | position in the vicinity of the lower blade 36. FIG.

In the above embodiment, the spring mechanism 58 for biasing the cleaning blade 56 toward the smooth surface 17 is exemplified as the elastic pressure mechanism, but the cleaning blade 56 is smoothed by, for example, pneumatic driving. You may employ | adopt the structure which presses to the surface 17. As shown in FIG.

In the above embodiment, the coating liquid attached to the cleaning blade 56 by the hook member by installing the hook member fixed as the removal mechanism 60 and sliding the cleaning blade 56 forward. The structure which removes the solute component of was shown. In a modification, the hook member may be configured to be slidable, and a worker may remove the solute component attached to the cleaning blade 56 by sliding the hook member. In addition, instead of manually sliding the cleaning blade 56 or the hook member, a driving unit for automatically sliding them may be provided to operate the driving unit at a predetermined timing.

However, although not described in the above embodiment, the upper blade 34 does not necessarily need to be in the shape of a blade, and scrapes excess coating liquid from the plate cylinder 14, and the uniform coating state of the coating liquid on the plate surface 16. Any shape can be adopted as long as it can hold. Moreover, as long as it can partition the coating liquid chamber 28 about the lower blade 36, and can seal so that the coating liquid of the coating liquid chamber 28 may not leak to the exterior, it does not need to be a blade shape, and also any shape It can be adopted. In addition, the cleaning blade 56 does not need to have a blade shape as long as it can scrape off the excess coating liquid attached to the smooth surface 17, and any shape can be adopted.

In the said Example, although the example which applied a ceramic mill to a lamination apparatus was shown, it can also be applied to other apparatuses, such as a coating machine and a gravure printing machine.

1 coating equipment
10 Base Sheet
12 pressure
14 Pandong
16 plates
17 smooth surfaces
18 chamber
20 tank
28 Coating room
30 chamber body
32 Side Seal
34 upper blade
36 lower days
50 Scraper
52 blade units
54 Lubricant Supply
56 Cleaning Blade
58 spring mechanism
60 removal mechanism
62 tank
232 Side Seal
256, 258 Cleaning Blade
318 chamber
332 Side Seal

Claims (8)

A coating device for coating by supplying a liquid to a plate surface of a rotating copper plate,
A chamber defining a liquid chamber on the side of the plate surface, the chamber body being provided at a side end of the chamber body, the seal member having a front end surface in sliding contact with a smooth surface extending outward in the rotational axis direction of the plate surface, and the chamber body. A chamber including a first blade extending in a rotational front end of the plate in a rotation direction, a second blade extending in a rotation rear end of the plate in the chamber body;
A scraping member for scraping the excess coating liquid attached to the smooth surface
And a coating layer formed on the coating layer. The method according to claim 1,
The seal member is made of a member having flexibility,
The side end part of the said 1st blade is pressed by the width direction inner part of the front end surface of the said seal member,
The said seal member is comprised so that the clearance gap between the front end surface, the side end part of the said 1st blade, and the connection of the exterior of the said chamber may isolate | separate the width direction outer part of the front end surface.
Coating device characterized in that. The method according to claim 1 or 2,
The scraping member is provided at least in a missing portion of the first blade with respect to the rotation axis direction of the plate cylinder.
Coating device characterized in that. The method according to any one of claims 1 to 3,
Further comprising an elastic pressurizing mechanism for elastically contacting the scraping member with the platen.
Coating device characterized in that. The method according to any one of claims 1 to 4,
The scraping member being disposed outside the chamber
Coating device characterized in that. The method according to any one of claims 1 to 5,
Further comprising a lubricant supply device for supplying a solvent component of the coating liquid as a lubricant between the leading edge of the scraping member and the side surface of the plate copper.
Coating device characterized in that. The method according to any one of claims 1 to 6,
Further provided with a removal mechanism for removing the solute component of the coating liquid attached to the scraping member
Coating device characterized in that. A coating device for coating by supplying a liquid to a plate surface of a rotating copper plate,
A chamber defining a liquid chamber on the side of the plate surface, the chamber body being provided at a side end of the chamber body, the seal member having a front end surface in sliding contact with a smooth surface extending outward in the rotational axis direction of the plate surface, and the chamber body. A chamber including a first blade extending in a rotational front end of the plate in the rotational direction, and a second blade extending in a rotational rear end of the plate in the chamber body,
The seal member is made of a member having flexibility,
At least one of the first blade and the second blade has a side end portion pressed against a widthwise inner portion of the front end surface of the seal member,
The said seal member is comprised so that the clearance gap of the front end surface and the side end part of the said at least one blade, and the connection of the exterior of the said chamber may interrupt | block the width direction outer part of the front end surface.
Coating device characterized in that.

Images