JP3232357B2 - Roll 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 roll coater, and more particularly to an improvement in a roll coater provided with a coating roll for transferring a coating material adhered by coming into contact with a coating material reservoir to the surface of a material to be coated. Things.

[0002]

2. Description of the Related Art Conventionally, various types of roll coaters for applying a coating material to the surface of a long material to be coated have been proposed. There is a type provided with a coating roll for transferring the applied material adhered to the surface of the material to be applied. This type of roll coater is, for example, as shown in FIGS.
The coating roll is rotated so as to always contact the coating material reservoir, the coating material stored in the coating material reservoir is adhered to the surface of the coating roll, and the coating material is transferred to the surface of the material to be coated. . Therefore, such a roll coater device can uniformly and continuously transfer the coating material onto the surface of the material to be coated. It is generally used as an apparatus for applying a liquid resist or the like to the surface of a long film base or the like.

[0003]

However, in a conventional roll coater, as shown in FIG. 7, a coating material having a width wider than the width of the material to be applied is used to transfer the material to a uniform thickness. The surface of the roll was brought into contact with the application material storage section to adhere the application material. For this reason, more coating material is required than the coating material required for the transfer, and the coating material adhered to the coating roll and remaining after the transfer is transferred to a backup roll or other component under the coating roll. For example, the coating material wasted because of dripping on the coating material or excessively attaching to the coating material. Further, there is a case where the coating material exudes due to the transfer pressure during the transfer and adheres to the side surface of the material to be coated, a backup roll, or the like.

When the coating material adheres to the surface of a backup roll or the like, the transfer of the coating material is unnecessary,
For example, the coating material is transferred to the side and back side,
Excess coating material adhering more than the width of the material to be coated on the surface of the coating roll may droop on the surface of the material to be coated, causing transfer unevenness, and may significantly lower the quality of the product.
For this reason, it is necessary to clean the roll coater device in a timely manner to remove a portion where a problem occurs when the coating material is attached, that is, an application material attached to an unnecessary portion, which is extremely wasteful for this cleaning. I was spending time.

[0005] In addition, the coating roll, backup roll, etc. of the roll coater are used in various shapes depending on the material to be coated, and after use, the excess coating material as described above is used. This had to be removed because of the adhesion, and in this respect too much wasted time was spent.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to not only perform uniform and continuous transfer, but also suppress waste of a coating material. Moreover, an object of the present invention is to provide a roll coater device having a simple structure that can reduce the cleaning time of the roll coater device.

[0007]

Means taken to solve the above problems according to the present invention will be described with reference numerals used in the drawings. Roll coater device 100 provided with coating roll 10 for transferring coating material 30 onto the surface of coating target material 40
In the coating roll 10, the coating material reservoir 20
A coating roll main body 11 that is not in contact with the coating roll main body 11, a roll-shaped transfer section 12 that projects from the coating roll main body 11 with a width of the same size as the width of the material to be coated 40 and comes into contact with the coating material storage section 20, And an air discharge port 13 for discharging air to the coating roll body 11 near both ends of the roll coater device 100 ".

[0008]

The present invention configured as described above operates as follows.

First, the coating roll main body 11 does not come into contact with the coating material storage section 20, but the roll-shaped transfer section 12 protrudes from the coating roll main body 11 and comes into contact with the coating material storage section 20. That is, the coating material 30 adheres to the surface of the transfer unit 12, but does not adhere to the surface of the coating roll body 11. Here, the width of the transfer unit 12 is the same as the width of the material 40 to be applied. Therefore, only the coating material 30 necessary for the transfer adheres to the transfer unit 12, and waste of the coating material 30 is suppressed.

Next, an air discharge port 13 is provided in the coating roll body 11 near both ends of the transfer section 12. For this reason, when air is discharged from the air discharge port 13, pressure is applied to the coating material 30 adhered to the surface of the transfer unit 12 by air, and the coating material 30 does not spread beyond the surface of the transfer unit 12. When the coating material 30 is transferred onto the surface of the material to be coated 40, as shown in FIG.
Is pressed in the width direction, so that the coating material 30 does not exude due to the transfer pressure and adhere to the side surface of the coating material 40, the backup roll 50, or the like. Accordingly, it is not necessary to clean the surface of the coating roll 10 or the coating material 30 adhered to the backup roll 50 or the like, which does not require the application material to be adhered unlike the related art, and the cleaning time of the roll coater device 100 is reduced. It is.

[0011]

Next, a roll coater 100 according to the present invention will be described.
Will be described in detail with reference to the drawings.

FIGS. 1 and 2 show an embodiment of a roll coater 100 according to the present invention. The roll coater device 100 is actually used in the manufacture of a substrate for mounting electronic components, and the coated material 40 is, for example, a 120 mm-wide long film base material. PMER-P-3 of liquid resist
00S (manufactured by Tokyo Ohka Kogyo Co., Ltd.).

FIG. 3 shows an example of the coating roll 10. The coating roll 10 includes a coating roll main body 11 and the coating roll main body 11.
And a roll-shaped transfer section 12 formed to have a diameter slightly larger (about 100 to 200 μm) than the diameter of the transfer section 12 and formed integrally with silicone rubber. Fine grooves (not shown) are provided for easy operation. The width of the transfer section 12 is 120 mm, which is the same size as the material 40 to be coated, and the surface of the transfer section 12 comes into contact with the coating material storage section 20 to adhere the coating material 30.

The coating roll body 10 includes:
A plurality of air discharge ports 13 are provided near both ends of the transfer section 12 along the transfer section 12, and 1 kgf / cm ² of air is discharged from the air discharge ports 13 at the time of transfer.

In this embodiment, an example is shown in which the coating roll main body 11 and the transfer section 12 are integrally formed. For example, the coating roll main body 11 is made of stainless steel and the transfer section 12 is made of silicone rubber. Etc. and may be integrated.

FIG. 5 shows another example of the coating roll 10. In the coating roll 10, grooves 14 are provided at both ends of the transfer section 12, and a plurality of air discharge ports 13 are provided on the side of the groove 14 facing the transfer section 12. The coating roll 10
In this case, the outer diameter of the transfer section 12 is naturally larger than the maximum diameter of the coating roll main body 11 (the diameter of the shoulder section 15 in FIG. 5), that is, the transfer section 12 projects from the coating roll main body 11, Except for the surface of the transfer unit 12, no contact is made with the application material storage unit 20. When such a coating roll 10 is used, the coating material 30 can be pressed more efficiently in the width direction by air at the time of transfer, and a problem occurs when the coating material such as the side portion of the coating material 40 or the backup roll 50 adheres. It is possible to more reliably prevent the application material 30 from adhering to the portion where the occurrence occurs.

As described above, in the present embodiment, the material to be coated 40
Although the example in which the liquid resist as the coating material 30 is transferred to the surface of the film substrate as described above is shown, the invention is not limited thereto, and the roll coater apparatus 100 of the present invention transfers the coating material 30 to the surface of the material 40 to be coated. It can be used for a wide range of things.

[0018]

As described in detail above, in the roll coater of the present invention, the coating roll does not contact the coating material reservoir except at the transfer portion having the same width as the width of the material to be coated. Only the necessary coating material can be adhered to the coating roll. In addition, by discharging air from the air discharge port of the coating roll, the coating material adhered to the transfer portion does not spread or exude at the time of transfer. It is possible to prevent the application material from adhering to the generated portion.

Therefore, according to the roll coater of the present invention, not only uniform and continuous transfer can be performed, but also the waste of the coating material can be suppressed, and the cleaning time of the roll coater can be shortened.

[Brief description of the drawings]

FIG. 1 is a side view showing one embodiment of a roll coater device according to the present invention.

FIG. 2 is a front view of the roll coater device shown in FIG.

FIG. 3 is a partial cross-sectional view illustrating an example of a coating roll.

FIG. 4 is a partial cross-sectional front view showing a state where the image is transferred by the roll coater device shown in FIG. 1;

FIG. 5 is a partial sectional view showing an example of a coating roll.

FIG. 6 is a side view showing a conventional roll coater device.

FIG. 7 is a front view of the roll coater device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Coating roll 11 Coating roll main body 12 Transfer part 13 Air discharge port 14 Groove part 15 Shoulder part 20 Coating material storage part 30 Coating material 40 Coated material 50 Backup roll 100 Roll coater device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) B05C 1/08-1/12 H05K 3/06

Claims (1)

(57) [Claims] 1. A roll coater device having a coating roll for transferring a coating material adhered by being brought into contact with a coating material reservoir to a surface of a material to be coated, wherein the coating roll has a non-contact with the coating material reservoir. Air is applied to the coating roll main body, a roll-shaped transfer section that projects from the coating roll main body with a width equal to the width of the material to be applied and comes into contact with the coating material storage section, and the coating roll main body near both ends of the transfer section. A roll coater device provided with an air discharge port for discharging.