JPH084138Y2 - Fountain applicator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a fountain applicator for applying paint to a web.

[Prior Art] FIGS. 4 and 5 show an example of a fountain applicator, and 2 is a header supported at both ends by a support tube 3 extending in the width extension direction of the web 1.
A chamber 4 communicating with the support cylinder 3 and a coating slit 5 penetrating from the chamber 4 to the upper end of the header 2 and extending in the width direction of the web 1 are bored therein.

In the figure, 6 is a bearing for supporting the support cylinder 3, and 7 is a roller for guiding the web 1 arranged directly above the header 2.

In the above-mentioned structure, when applying the coating material to the web 1, the web 1 is wound around the outer peripheral surface of the roller 7 so that the surface of the web 1 is brought into contact with the upper surface of the header 2.

Next, the roller 7 is driven to move the web 1 in the direction of arrow A, and the coating material is continuously flown into the chamber 4 through the support cylinder 3 so as to maintain a predetermined pressure.

The coating material that has flowed into the chamber 4 is discharged to the outside of the header 2 through the coating slit 5, and the coating material is continuously applied to the surface of the web 1 that moves in the arrow A direction.

[Problems to be Solved by the Invention] However, in the fountain applicator described above, the paint supplied to the header 2 via the support cylinder 3 has a size that cannot pass through the gap of the coating slit 5. When the foreign matter is mixed, the foreign matter is caught in the gap of the coating slit 5, and there is a problem that a portion of the web 1 where the coating material is not applied is continuously generated in the longitudinal direction of the web 1.

For this reason, a filter device (not shown) is provided upstream of a paint supply pipe (not shown) connected to the support cylinder 3 to remove foreign substances mixed in the paint. On the downstream side of the filter of the supply pipe, the oxide film (rust) formed on the inner surface of the paint supply pipe may be peeled off and mixed in the paint to be caught in the gap of the coating slit 5.

On the other hand, a filter may be provided in the header 2 in order to prevent foreign matter from getting caught in the gap of the coating slit 5, but the header 2 becomes large and maintenance of the filter is easy. There is a problem that you cannot do it.

The present invention solves the above-mentioned problems by removing foreign matter in the paint just before the header to prevent foreign matter from getting stuck in the coating slit and to easily perform maintenance and inspection of the filtration device. The purpose is to get you.

[Means for Solving the Problems] In order to achieve the above-mentioned object, in the present invention, a coating material whose both ends are respectively supported by support tubes extending in the web width extension direction and which is supplied to the inside through the support tubes is used. In a fountain applicator equipped with a header that is discharged from a coating slit extending in the width direction and applied to a web,
A small diameter portion having a small inner diameter is formed from the end portion on the header side to the middle portion of the support cylinder, and a large diameter portion having a large inner diameter is formed from the middle portion to the end portion on the side opposite to the header. A tapered surface is formed from the small-diameter portion to the large-diameter portion, and a paint supply pipe extending in a direction intersecting with the support cylinders is connected to the large-diameter portion in the vicinity of the end on the opposite header side of each support cylinder, A strainer having a hollow structure having an outer diameter smaller than that of the small diameter portion of the support cylinder and having a cup-like shape having one end opened, and a plurality of filtration slits having a gap size smaller than the coating slit are formed on the cylindrical surface and the other end surface thereof. An inscribed flange is formed at one end of the support cylinder so that it can be inscribed in the large diameter part of the support cylinder and can contact the tapered surface, and the strainer is inserted into each support cylinder so as to be located in the small diameter part. , Inscribe the inscribed flange on the large diameter part Together brought into contact with the tapered surface is provided with a lid strainer inspection detachably on the end face of the counter-header side of the support cylinder.

[Operation] When the paint is continuously flowed from the paint supply pipe to the support cylinder, the paint passes through the filtration slit of the strainer and then flows into the header and is discharged from the coating slit to the outside.

On the other hand, at this time, in the paint flowing from the paint supply pipe,
If a foreign material having a size that cannot pass through the gap of the coating slit is mixed, the coating slit passes through the filtration slit, and the filtration slit has a smaller gap size than the coating slit. Remains in the strainer while being prevented from passing to the header side together with the paint.

When inspecting the strainer, open the strainer inspection lid and pull out the strainer from the end on the side opposite the header of the support cylinder for maintenance inspection.

At this time, since the foreign matter remains inside the strainer having a hollow structure, the foreign matter does not fall inside the support cylinder.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

1 to 3 show an embodiment of the present invention, in which the same reference numerals as those in FIGS. 4 and 5 represent the same parts.

The support cylinder 3 is connected to both ends of the header 2 so as to communicate with the chamber 4.

The support cylinder 3 has a small-diameter portion 19 having a small inner diameter on the header 2 side from the middle portion and a large-diameter portion 20 having a large inner diameter on the side opposite to the header 2 from the middle portion. A support cylinder taper surface 18 which is narrowed toward the header 2 side is formed on the inner peripheral surface between the support cylinder 20 and the inner peripheral surface.

A strainer 22 having an outer diameter smaller than that of the small-diameter portion 19 of the support cylinder 3 and having a cup shape in which the end portion on the side opposite to the header 2 is open, and a large number of filtration slits 21 formed on the cylindrical surface and the end surface on the header 2 side. To form.

The filtration slit 21 has a smaller gap size than the coating slit 5 of the header 2.

A ring having an outer diameter capable of being inscribed in the large-diameter portion 20 of the support cylinder 3 and a flange taper surface 23 capable of contacting the support cylinder taper surface 18 at the end of the strainer 22 opposite to the header 2. Shaped inscribed flange 24 is fixed, and a handle 25 extending in the direction opposite to the header 2 side is provided on the end face of the inscribed flange 24 opposite to the header 2 side.
Is fixed, and a protrusion-like stopper 26 is provided at the end of the handle 25 opposite to the header 2.

The strainer 22 is inserted from the end of the support cylinder 3 opposite to the header 2, and the outer peripheral surface of the inscribed flange 24 is slid toward the header 2 side while inscribed in the large diameter portion 20 of the support cylinder 3 to form the flange portion. The taper surface 23 is brought into contact with the support cylinder taper surface 18, and the strainer 22 is positioned on the small diameter portion 19 of the support cylinder 3.

An annular groove 28 having a notch portion 27 extending from the outer edge portion toward the center in the radial direction at a position symmetrical in the radial direction (see FIG. 2), and having an end face on the header 2 side and matching the end face shape of the support cylinder 3 is formed. The disk-shaped strainer inspection lid 29 having the disk-shaped cover is formed.

On the end face of the strainer inspection lid 29 on the header 2 side, the support cylinder 3
Can be inscribed on the inner surface of the non-header 2 side, and the handle 25
A bracket 31 having a notch portion 30 that can be fitted with a stopper 26 provided in the above is fixed, and a strainer inspection lid 29 is fitted to the end surface of the support cylinder 3 opposite to the header 2.

A bracket 32 is fixed to the outer peripheral surface of the end of the support cylinder 3 on the side opposite to the header 2 so as to correspond to the cutout portion 27, and an eyebolt 33 extending toward the side opposite to the header 2 is attached to the bracket 32.
The base end of the
Fit the middle part of 33 into the notch 27, tighten the nut 35 screwed to the tip of the eyebolt 33 toward the base end, and fasten the strainer inspection lid 29 to the end face of the support cylinder 3 on the side opposite to the header 2. The end surface of the support cylinder 3 opposite to the header 2 is closed by the strainer inspection lid 29.

A pipe connecting portion 17 extending in a direction orthogonal to the axis of the support cylinder 3 is formed near the end of the support cylinder 3 opposite to the header 2.

Notch portions 9 and 10 extending from the outer edge portion toward the radial center on the end surface of the pipe connecting portion 17 and the downstream end surface of the paint supply pipe 8 extending in the direction orthogonal to the support cylinder 3 (see FIG. 3). Ring-shaped flanges 11 and 12 having
To fix each.

A bracket 13 is fixed to the outer peripheral surface of the pipe connecting portion 17 so as to correspond to the cutout portion 9, and a base end portion of an eyebolt 14 extending toward the downstream side of the paint supply pipe 8 is fixed to the bracket 13 by a pin 15. To pivot.

The flanges 11 and 12 are brought into contact with each other so that the positions of the cutouts 9 and 10 coincide with each other, and the intermediate portion of the eyebolt 14 is fitted into the cutouts 9 and 10 and screwed into the tip of the eyebolt 14. The nut 16 is tightened toward the base end to fasten the flanges 11 and 12, and the pipe connecting portion 17 and the paint supply pipe 8 are connected.

1 to 3 show the structure of the right side portion of the fountain applicator when viewed from above, the left side portion (not shown) is also symmetrical to the right side portion.

In the above structure, when the paint is continuously flowed from the paint supply pipe 8 to the support cylinder 3 so as to maintain a predetermined pressure, the paint passes through the filtration slit 21 of the strainer 22 and then the chamber 4 and the coating. It is discharged to the outside of the header 2 through the slit 5.

On the other hand, at this time, when a foreign material having a size that cannot pass through the gap of the coating slit 5 is mixed in the coating material flowing from the coating material supply pipe 8, when the coating material passes through the filtration slit 21, Since the gap size of the filtration slit 21 is smaller than that of the coating slit 5, the foreign matter is prevented from passing together with the paint to the header 2 side, and the strainer 22 is prevented.
Remains inside.

Therefore, foreign matter mixed in the paint does not enter the gap of the coating slit 5 through the chamber 4 and a portion where the paint is not applied to the surface of the web does not continuously occur in the longitudinal direction of the web.

When removing foreign matter remaining in the strainer 22,
Loosen the nut 35 screwed to the eyebolt 33, and
Is rotated around the pin 34 toward the header 2 side, the strainer inspection lid 29 is removed from the end of the support cylinder 3 on the side opposite to the header 2 to open the end surface of the support cylinder 3 on the side opposite to the header 2, and then the handle 25 is removed. Pull the strainer 22 toward the side opposite to the header 2 to pull the strainer 22 out of the support cylinder 3 to remove foreign matter remaining in the strainer 22 and perform cleaning, and insert the strainer 22 into the support cylinder 3 in the reverse order of the above procedure. Then, the strainer inspection lid 29 is fastened to the end surface of the support cylinder 3 opposite the header 2 side to close the end surface of the support cylinder 3 opposite the header 2.

At this time, since the foreign matter remains in the strainer 22 having a hollow structure, the foreign matter does not fall into the support cylinder 3.

As described above, in the present invention, the strainer 22 can be easily attached and detached, so that the maintenance and inspection of the strainer 22 can be reliably performed within a short time.

The fountain applicator of the present invention is not limited to the above-described embodiment, but the number of eyebolts for fastening the support cylinder to the strainer inspection lid and the support cylinder to the paint supply pipe is increased. It is needless to say that various modifications can be made within the scope not departing from the gist of the present invention, such as using other fastening means instead of the above and appropriately changing the shape of the filtration slit.

[Effects of the Invention] As described above, the fountain applicator of the present invention can exhibit various excellent effects as described below.

(1) A strainer having a filtration slit having a smaller gap size than the coating slit prevents foreign matter of a size mixed in the coating which cannot pass through the gap of the coating slit from flowing into the header together with the coating. So
It is possible to prevent foreign matter from being caught in the gap of the coating slit so that a portion where the coating material is not applied to the surface of the web is continuously generated in the longitudinal direction of the web.

(2) By opening the strainer inspection lid, the strainer can be pulled out from the inside of the support cylinder to the side opposite to the header, so that the maintenance and inspection of the strainer can be reliably performed in a short time. Foreign matter does not fall into the inside of the support tube.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of an embodiment of the present invention, FIG. 2 is a partially broken arrow view of II-II of FIG. 1, and FIG. 3 is III-I of FIG.
II arrow view, FIG. 4 is a plan view of a conventional fountain applicator, and FIG. 5 is a VV arrow view of FIG. In the figure, 2 is a header, 3 is a support cylinder, 5 is a coating slit, and 8
Is a paint supply pipe, 18 is a support cylinder tapered surface (tapered surface), 19 is a small diameter part, 20 is a large diameter part, 21 is a filtering slit, 22 is a strainer, 24 is an inscribed flange, and 29 is a strainer inspection lid. .

Claims (1)

[Scope of utility model registration request] 1. A coating material, whose both ends are respectively supported by support cylinders extending in the web width extension direction and supplied inside through the support cylinders, is discharged from a coating slit extending in the web width direction and applied to the web. In a fountain applicator equipped with a header, a small diameter part having a small inner diameter is formed from the end portion on the header side of the support cylinder to the middle portion, and a large diameter portion having a large inner diameter is formed from the middle portion to the end portion on the side opposite to the header.
In addition, a taper surface that connects the small diameter portion to the large diameter portion is formed in the middle portion of the support cylinder, and a paint supply pipe extending in a direction intersecting with the support cylinder is provided in the vicinity of the end on the side opposite to the header of each support cylinder. Connected to communicate with the portion, having a smaller outer diameter than the small diameter portion of the support cylinder, and a cup-shaped opening at one end, and a filtration slit having a gap size smaller than the coating slit on the cylindrical surface and the other end surface. An inscribed flange formed so as to be inscribed in the large diameter portion of the support cylinder and abuttable to the tapered surface is fixed to one end of the strainer having a large number of hollow structures and the strainer is positioned in the small diameter portion. As described above, the inscribed flange is inscribed in the large diameter part and abutted against the taper surface, and the strainer inspection lid is detachably attached to the end face of the opposite side of the respective support cylinders. Fountain app featuring Applicator.