JP2952138B2 - Roller curtain coater equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller curtain coater using a belt as an object to be coated.

[0002]

2. Description of the Related Art Heretofore, as a coating technique using curtain flow, a slit method and an overflow method have been known. For example, the slit method supplies paint to the head,
Discharge from the slit gap to form a curtain. In this method, a predetermined coating film thickness is obtained by adjusting the coating viscosity, slit interval, and the like. The overflow method changes properties such as surface tension and viscosity of the paint while diluting the paint with a solvent. In this way, the paint adjusted to an appropriate paint viscosity overflows from the container to form a curtain. In this method, a predetermined coating film thickness is obtained by adjusting the coating viscosity and the like.

Further, in recent years, a curtain coater using a roller system (roller curtain coater) has been developed. This roller curtain coater discharges paint whose viscosity has been adjusted in advance as needed between a rubber or metal paint roll and a metal doctor roll from a paint supply device installed at the top of the roll. Scraping off with the blade in contact. The scraped paint flows down along the blade to form a paint curtain, and is applied to a steel plate or the like passing below the blade. FIG. 3 shows a conventional method of this roller curtain coating apparatus. The paint is stored between the paint roll 1a, the doctor roll 1b and the side trays 8 and 8 'on both sides through a paint supply device 7 from a fixed paint supply pipe 10, and the paint roll 1a is rotated by the rotation of the paint roll 1a. Is discharged downward along the surface of the coating roll 1a from the gap between the coating roll 1b and the doctor roll 1b. The paint is scraped off from the surface of the coating roll 1a by the blade 3 arranged in the axial direction of the coating roll 1a, and the coating curtain 6 is removed.
Is formed and flows down. The coating roll 1a, the doctor roll 1b, the side trays 8 and 8 'on both sides, and the blade 3 are directly or indirectly supported by a fixed frame 17.

The roller curtain coater has a rotating speed of the coating roll 1a, a pressing pressure between the coating roll 1a and the doctor roll 1b when the coating roll 1a is made of rubber, or a coating pressure between the coating roll 1a and the doctor when the coating roll 1a is made of metal. By adjusting the gap between the rolls 1b, a paint curtain 6 having a desired film thickness can be obtained.

[0005] While the object 4 is not being coated, the coating roll 1
The paint discharged from between the a and the doctor roll 1b is scraped off by the blade 3 installed below the coating roll 1a, and is freely dropped on the intermediate pan 9 which has advanced.
(Not shown), then the intermediate pan 9 to the paint receiving pan 2
(Not shown), and is discharged to the paint discharge pipe 12 through the paint discharge port 11, so that the paint does not fall on the object 4 to be coated.

During the coating of the object 4 to be coated, the intermediate pan 9 is retracted from the downflow area of the paint curtain 6 as shown in FIG. 3, and the paint discharged from between the paint roll 1a and the doctor roll 1b. The coating is performed by free-falling the coating curtain 6 from above the belt-shaped body, which is the object 4 to be coated, which has been scraped off by the blade 3 installed below the coating roll 1a. On the other hand, the remaining paint is dropped into a paint receiving pan 2 provided at a lower portion, and is discharged to a paint discharge pipe 12 through a paint discharge port 11.

Further, since it is necessary to maintain the width of the paint curtain 6, the side chains 5, 5 'supported by the fixed frame 17 are moved along the inner bottom surface of the paint receiving pan 2 and the surface of a flow-down guide (not shown). The flow width is adjusted by providing a contact and extension.

[0008]

In the roller curtain device having such a structure, the coating roll 1a, the doctor roll 1b, the side trays 8, 8 'on both sides, the blade 3, and the side chains 5, 5' are mounted on the frame 17. It is directly or indirectly supported, and the paint supply pipe 10, the paint receiving pan 2, and the paint discharging system from the paint receiving pan 2 are of a fixed type. Unless the passing of the belt-like body is stopped, it is difficult to change the paint (coater cleaning) or coater rolls (coating rolls 1a and doctor rolls 1b) and replace parts, thus necessitating inefficient production. In particular, when the size of the lot to be coated (the same paint) is small, more and more inefficient work is required. Further, even if a plurality of coaters are arranged in parallel in the direction of movement of the object 4 to be coated, only a maximum of the number of coaters can be continuously applied, and inefficient production when a lot (the same paint) to be applied is small is required. It was not an effective means of evasion.

In the present invention, therefore, the belt can be arbitrarily moved out of the range of the object 4 to be coated during the passing of the belt-shaped body, which is the object to be coated 4, and used outside the area of the plate to be coated. Washing of paint and coater roll (paint roll 1a, doctor roll 1
b) It is an object of the present invention to provide a roller curtain coater device capable of exchanging parts and the like, and sequentially changing paints to be applied in a plurality of parallel arrangements to enable continuous coating.

[0010]

SUMMARY OF THE INVENTION The present invention advantageously solves the problems of the prior art, and as a result of the inventors' intensive efforts to achieve the above object, the object to be coated 4 is obtained. During the passing of the belt-shaped body, it is possible to arbitrarily move outside the range of passing the workpiece 4 to be coated. The paint to be applied is sequentially switched according to the arrangement to enable continuous coating. The gist of the invention is as follows.

(1) In a roller curtain coater apparatus, a paint supply device for receiving paint from a coater roll, a paint supply pipe located above the coater roll and having an elevating function,
A side tray for coating height adjustment between coater rolls, a blade for scraping paint from the coating roll, a chain for holding the width of the paint curtain with a winding mechanism, and an intermediate pan for receiving paint flowing down on the workpiece during non-painting A paint receiving pan and a paint outlet disposed on an upper carriage having a function of moving in a direction orthogonal to the traveling direction of the band of the object to be coated, and for receiving the paint falling from both sides of the object to be coated while the object is being coated. By disposing a receiving funnel lid having a coupling function with a receiving funnel main body connected to the paint discharge pipe on a lower carriage having a moving function in a direction perpendicular to the traveling direction of the object to be coated, in a direction perpendicular to the traveling direction of the belt-shaped body. A roller curtain coater device characterized by being movable in a direction. (2) The roller curtain coater device according to (1), wherein the movement of the upper trolley and the lower trolley is synchronized. (3) A roller curtain coater device wherein a plurality of the roller curtain coater devices according to (1) are arranged in parallel to the traveling direction of the belt-shaped body of the object to be coated, so that continuous coating can be performed without requiring a paint change time. It is in.

[0012]

The present invention will be described below in detail with reference to the drawings.
FIG. 1 is a schematic diagram of a roller curtain coater according to the present invention. The paint roll 1a, the doctor roll 1b, the paint supply device 7, the side trays 8, 8 ', the blades 3, the side chains 5, 5', and the intermediate pan 9 are arranged on the upper carriage 13, and the paint receiving pan 2, the paint discharge The outlet 11 and the receiving funnel lid 21 are arranged on the lower carriage 15. Upper trolley 1
Numeral 3 is movable along the upper bogie rail 14 laid in a direction orthogonal to the traveling direction of the belt-shaped body as the body 4 to be coated, and can be moved out of the range of the passing of the body 4 to be coated. It is configured to be able to move out of the range in which the object 4 is passed along the lower bogie rail 16 laid in a direction orthogonal to the traveling direction of the belt-like body.

The paint passes through a paint supply device 7 from a paint supply pipe 10 lowered by a paint supply pipe elevating device 18 and between a paint roll 1a, a doctor roll 1b and both side trays 8, 8 '. Store and paint roll 1a
Of the paint roll 1a and the doctor roll 1b
Is discharged downward along the surface of the coating roll 1a. Blade 3 arranged in the axial direction of coating roll 1a
Then, the paint is scraped off from the surface of the coating roll 1a to form the paint curtain 6 and flow down.

While the object 4 is not being coated, the coating roll 1
The paint discharged from between the a and the doctor roll 1b is scraped off by the blade 3 installed below the coating roll 1a and is freely dropped on the intermediate pan 9 (not shown). The paint is dropped on the receiving pan 2 (not shown), and is discharged from the paint discharge port 11 through the receiving funnel lid 21 to the receiving funnel main body 22 and the paint discharge pipe 12 on the frame side. The structure does not fall.

During the coating of the object 4 to be coated, the intermediate pan 9 is retracted from the downflow area of the paint curtain 6 as shown in FIG. 1 and the paint discharged from between the paint roll 1a and the doctor roll 1b. Is coated with a paint curtain 6 which is scraped off by a blade 3 installed below the coating roll 1a and freely falls from above a belt-shaped body which is the object 4 to be coated. On the other hand, the remaining paint is dropped into a paint receiving pan 2 provided at a lower portion, and is received from a paint outlet 11 through a receiving funnel lid 21.
Through the receiving funnel body 22 and the paint outlet pipe 12 on the frame side. Since it is necessary to keep the width of the paint curtain 6, the side chains 5, 5 'are driven by the side chain winding mechanisms 19, 19', and are moved along the bottom surface of the paint receiving pan 2 and the surface of the downflow guide (not shown). It extends by contacting and adjusting the flow width.

After the coating is completed, the intermediate pan 9 is moved to receive the intermediate paint curtain 6, and then the supply of the paint is stopped, and the paint supply pipe elevating device 18 is driven to move the paint supply pipe 10 upward. At the same time, the side chains 5, 5 'are driven upward by the side chain winding mechanisms 19, 19', and are wound up. In this way, the upper carriage 13 is moved along the upper carriage rail 14 in a direction orthogonal to the traveling direction of the belt, which is the object 4 to be coated, and is moved out of the range where the object 4 is passed (off-line). In addition, the lower carriage 15 is moved along the lower carriage rail 16 in a direction perpendicular to the traveling direction of the belt-shaped band, which is the object to be coated 4, and is moved out of the range of passing the object to be coated 4 (offline). The paint receiving pan 2 has a paint outlet 11.
The paint outlet 11 and the paint outlet pipe 12 are connected to each other.
Are connected by a receiving funnel structure that can be connected and detached. FIG.
2 shows a schematic view around the paint discharge port 11 of the paint receiving pan 2. Receiving funnel lid 21 on the side of paint discharge port 11 and paint discharge pipe 1
The receiving funnel main body 22 on the second side is constituted by a slide mechanism, and is connectable and detachable. The structure around the paint discharge port is not limited to the receiving funnel structure, and may be, for example, an elevating mechanism as long as it can be connected and detached.

Thus, a coater roll, a paint supply device located above the coater roll, a side tray for adjusting the height of the paint between the coater rolls, a blade for scraping the paint from the paint roll, a chain for maintaining the width of the paint curtain, and an object to be coated. An upper trolley equipped with an intermediate pan that receives paint flowing down during non-painting on the body, and a paint receiving pan, paint outlet, and paint discharge pipe that receive paint that falls from both sides of the painted band during painting on the painted object After moving the lower bogie equipped with the receiving funnel body and the receiving funnel lid having a coupling function in a direction orthogonal to the traveling direction of the belt-shaped body of the object to be coated, and transporting the object out of the range of the plate passing the object to be coated (offline), Cleaning or replacement of parts is now possible.

[0018]

As described above, according to the structure of the present invention, it is possible to arbitrarily move the belt-like body, which is the object to be coated, out of the range of the object to be passed through the sheet-passing area. It is possible to wash paint used and replace parts such as coater rolls outside the range of the board.
Continuous painting is possible.

[Brief description of the drawings]

FIG. 1 is a schematic view of a roller curtain coater according to the present invention.

FIG. 2 is a schematic view around a discharge port of a paint receiving pan of the roller curtain coater according to the present invention.

FIG. 3 is a schematic view of a conventional roller curtain coater.

[Explanation of symbols]

 Reference Signs List 1a Paint roll 1b Doctor roll 2 Paint pan 3 Blade 4 Workpiece 5, 5 'Side chain 6 Paint curtain 7 Paint supply device 8, 8' Side tray 9 Intermediate pan 10 Paint supply pipe 11 Paint outlet 12 Paint discharge pipe DESCRIPTION OF SYMBOLS 13 Upper trolley 14 Upper trolley rail 15 Lower trolley 16 Lower trolley rail 17 Frame 18 Paint supply pipe elevating device 19, 19 'Side chain hoisting mechanism 21 Receiving funnel lid 22 Receiving funnel main body

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B05C 5/00 103 B05C 11 / 00,11 / 10 B05D 1/26-1/30

Claims (3)

(57) [Claims] 1. A roller curtain coater device,
Coater roll, paint supply device that receives paint from paint supply pipe located above coater roll and has elevating function, side tray for paint height adjustment between coater rolls, blade that scrapes paint from paint roll, winding mechanism Along with a chain for maintaining the width of the paint curtain and an intermediate pan for receiving the paint flowing down on the object to be coated during non-coating on the upper carriage having a moving function in a direction orthogonal to the traveling direction of the belt-shaped body of the object to be coated, The paint receiving pan that receives the paint that falls from both sides of the coated belt during painting on the coated object, the receiving funnel body that is connected to the paint outlet and the paint discharge pipe, and the receiving funnel lid that has the coupling function are connected to the moving direction of the coated object. A roller cart that can be moved in a direction perpendicular to the direction of travel of the band by disposing the lower carriage having a function of moving in the direction perpendicular to the belt. Coater apparatus. 2. The roller curtain coater according to claim 1, wherein the movements of the upper carriage and the lower carriage are synchronized. 3. A roller curtain coater characterized in that a plurality of roller curtain coaters according to claim 1 are arranged in parallel to a traveling direction of a belt-shaped body to be coated, so that continuous coating can be performed without requiring a paint change time. apparatus.