JP2508556Y2 - Carten coating equipment - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carten coating apparatus having a steel sheet as an object to be coated.

[0002]

2. Description of the Related Art Conventionally, as a coating technique using a curtain flow, a slit method and an overflow method are known. For example, the slit method supplies paint to the head,
It is discharged from the slit gap to form a curtain. In this method, the coating viscosity and the slit gap are adjusted to obtain a predetermined coating film thickness. In the overflow method, the properties such as surface tension and viscosity of the paint are changed while diluting the paint with a solvent. The coating material thus adjusted to an appropriate coating viscosity is overflowed from the container to form a curtain. In this method, the coating viscosity is adjusted to obtain a predetermined coating film thickness.

Further, in recent years, a roller coater coater has been developed. In this roller system, a paint whose viscosity has been adjusted in advance is coated with a rubber roll and a doctor roll made of metal. It is supplied to the roll gap between the roller and the nozzle and discharged, and scraped by the blade in contact with the coated rubber roller. The scraped paint flows down along the blade to form a paint curtain, which is applied to a steel plate or the like passing below the blade. Since it is necessary to maintain the width of the coating curtain in these curtain coating apparatuses, the actual construction shown in FIG.
As disclosed in Japanese Patent No. 55877, there is disclosed a flow-down width adjusting tool for a coating machine in which chains 5a, 5b or an elongated material are provided in contact with and extend downward along the inner bottom surface of the paint tank 2 and the flow-down guide 9 surface.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the prior art such as Japanese Utility Model Laid-Open No. 51-55877, which is a device for adjusting the flow-down width for maintaining the width of the paint curtain in the above-mentioned curtain coating device. If the carten coating device is moved at a right angle to the direction of passage of the object to be coated while it is passing through the object to be coated and the paint tank is replaced, for example, the chain will interfere with the object to be coated. It is difficult to move this chain while a coated object such as a steel plate is passing. However, since it is actually necessary to move the carten coating device while the steel sheet is passing, the present invention does not cause these interferences during the passage of the steel sheet that is the object to be coated. It is an object of the present invention to provide a carten coating device capable of moving the steel plate at right angles to the steel plate passing direction.

[0005]

The present invention advantageously solves the problems of the prior art, and as a result of the inventors' earnest efforts to achieve the above object, as a result of checking the steel plate during painting. It is possible to move the carten coating device at right angles to the steel plate passing direction without the interfering with the steel plate.
In a carton coating device that forms a coating film on an object to be coated by passing through a tenn, a mechanism for contacting along the inner bottom surface of the paint tank and the blade and winding up a chain extended and extended is to be painted. A car characterized by being provided on top of an object
It is in the Ten coating device.

The present invention will be described in detail below with reference to the drawings. FIG. 1 is a perspective view of a roller curtain coating apparatus according to the present invention. In FIG. 1, the coating material stored between the coating roll 1a and the doctor roll 1b is the coating roll 1a.
Rotation of the paint roll 1a and doctor roll 1b
Is discharged downward along the surface of the coating roll 1a. Reference numeral 3 denotes a blade arranged in the axial direction of the coating roll 1a, which scrapes paint from the surface of the coating roll 1a to form a coating curtain 6 and flows down. The remaining paint scraped off by the blade is stored in the paint tank 2 provided at the bottom. By controlling the rotation speed of the paint roll 1a and the gap between the paint roll 1a and the doctor roll 1b, the roll curtain coater has a desired thickness. 6 is obtained. As described above, the curtain coating device is constituted by a device that performs coating by freely dropping the paint curtain 6 from above the steel plate as the object 4 to be moved.

Based on this structure, the chain side chain 5 is provided so as to contact the inner bottom surface of the paint tank 2 and the flow-down guide surface and extend downward to provide a narrow surface of the object to be coated. In the case of coating, the flow width of the paint is narrow, and for a wide paint, the flow width is wide according to the width. In this way, the side chain is a simple one whose flow-down width can be easily and freely adjusted. FIG. 2 is a front view of a roller curtain coating apparatus according to the present invention. As shown in this figure, the paint stored between the coating roll 1a and the doctor roll 1b is removed from the gap between the coating roll 1a and the doctor roll 1b by the rotation of the coating roll 1a. The coating roll 1a flows downward in the form of a curten along the roll surface of the coating roll 1a. The width must be adjusted, and for this adjustment, a chain-like side chain 5 is provided to arbitrarily adjust the width of the paint curtain 6 and to maintain the state. .

However, in the prior art, as shown in FIG. 3, the paint tank 2 having a V-shaped cross section is provided with a downflow guide 9, and the upper edge of that part is made lower than the other parts so that the paint acts as the downflow guide. A pair of belt conveyors 11a and 11b for transporting the object to be coated so that the coating container 10 is sandwiched below the V-shaped coating tank 2 by a coating machine which is made to flow down in the form of a cart.
The pipe 12a is supplied into the paint tank 2 through the pipe 12b having a horizontally long slit in the paint tank 2. A pair of chains 5a and 5b hung down to the side of the downflow guide 9 through the bottom of the V-shaped paint tank 2 are for adjusting the width of the paint flowing down like a kerten from the upper edge. When it is necessary to move the carten coating device at right angles to the passing direction of the object to be coated while the object to be coated 4 is passing,
Since the chain-like side chains 5a and 5b interfere with the object to be coated 4, a structure for eliminating this interference is shown in FIG. That is, chain-like side chains 5a and 5b extending vertically to the inner bottom surface of the paint tank 2 and the side chains.
The purpose is to configure a chain hoisting device 8 for hoisting the chains 5a and 5b onto the upper portion of the object 4 to be coated.

The side chain 5 or the like, such as ball ethylene or an elongated material, is set to an appropriate flow-down width and is connected to a chain hoisting device 8 for stopping at that position. Is provided on the inner bottom surface of the paint tank 2 below the object 4 to be coated, which is hung from the lower end along the blade 3 via the guide 7.
While the object to be coated 4 is passing, the side chain 5 is coated by a chain-shaped side chain winding device 8 that extends by extending the carten coating device to the inner bottom surface of the paint tank 2 at a right angle to the direction of passage of the object to be coated. Roll up to the top of item 4. In this way, when the side chain 5 is wound up on the upper side and then, for example, the paint tank, which is a carten coating device, is replaced, it can be moved in a direction perpendicular to the passing direction of the article to be coated 4. That is, there is no longer a state in which the side chain is suspended and extended to the inner bottom surface of the paint tank 2, there is no obstacle due to the side chain, and it is possible to move without any obstacle with the object to be coated or the paint tank.

[0010]

As described above, the configuration of the present invention makes it possible to move the curtain coating device without interfering with the object to be coated.

[Brief description of drawings]

FIG. 1 is a perspective view of a roller curtain coating apparatus according to the present invention;

FIG. 2 is a front view of a roller curten coating apparatus according to the present invention,

FIG. 3 is a perspective view of a conventional coating apparatus.

[Explanation of symbols]

 1a coating roll, 1b doctor roll, 2 coating tank, 3 blade, 4 coated object, 5a, b side chain, 6 coating curtain, 7 chain guide, 8 chain winding Equipment, 9 Downflow guide, 10 Paint receiver, 11a, b Belt conveyor, 12a, b Pipe.

Claims (1)

(57) [Scope of utility model registration request] 1. A carten coating apparatus for forming a coating film on an object to be coated by passing a suitable coating carten, contacting the inside bottom surface of a coating tank and a blade, and extending downwardly. A carten coating device characterized in that a mechanism for winding the provided chain is provided on the top of an object to be coated.