JP4082262B2 - Application tool and application device provided with the application tool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a coating tool used to form a coating film layer by coating a coating liquid on the surface of a sheet-like object to be coated (such as a glass substrate used in a liquid crystal display panel), and a coating provided with the coating tool. More particularly, the present invention relates to a coating tool having a slot for discharging a coating liquid and a coating apparatus including the coating tool.
[0002]
[Prior art]
Conventionally, as a coating device used to form a coating film layer by coating a coating liquid on the surface of a sheet-like coating material (such as a glass substrate used in a liquid crystal display panel), a coating having a slot for discharging the coating liquid An applicator provided with a tool is known.
[0003]
That is, as shown in FIG. 5, the coating tool 32 includes a pair of edge supports 33, 33 each having a narrow slot 35, and a carbide that is attached to the tip of each edge 33 support that faces the slot 35. An edge body 43 made of an alloy and a fastening body 44 for fixing the edge body 43 to the edge support 33 are provided. By supplying a coating liquid into the pocket 34 communicating with the slot 35, the slot 35 has a slot 35. Then, the coating liquid is guided and discharged from the opening of the slot 35, and the coating liquid is applied to the surface of the object to be coated 54.
[0004]
In this case, the fastening body 44 includes a stainless steel clamp piece 45 attached to the edge body 43 and a fastening screw 46 that passes through the edge support 33 and is screwed to the clamp piece 45. The edge main body 43 is integrally fixed to the edge support 33 by being fastened to the piece 45.
Various prior arts related to the coating tool used in the coating apparatus as described above have been proposed (see, for example, Patent Document 1).
[0005]
[Patent Document 1]
Japanese Patent No. 2616033 [0006]
[Problems to be solved by the invention]
By the way, in the coating tool 32 having the above-described configuration, the stainless steel clamp piece 45 is edge-bonded by brazing with a silver brazing material or the like, or an adhesive such as an anaerobic adhesive or an epoxy adhesive. 43 is integrally joined.
[0007]
However, when the clamp piece 45 is joined to the edge main body 43 by brazing, the edge main body 43 is distorted due to the difference in thermal expansion coefficient between the stainless steel clamp piece 45 and the cemented carbide edge main body 43, This distortion causes the edge main body 43 to warp or bend. For this reason, when the edge main body 43 is attached to the edge support 33, the straightness accuracy of the edge main body 43 is reduced, the intervals between the slots 35 are uneven, and the discharge amount of the coating liquid from the slots 35 varies. As a result, it becomes difficult to form a coating film having a predetermined thickness on the surface of the workpiece 54 with high accuracy. Further, when the clamp piece 45 is joined to the edge main body 43 by the adhesive, the problem of warping such as brazing does not occur. However, when the coating tool 32 is cleaned with the cleaning solution after the coating operation is completed, the cleaning solution Depending on the type, the adhesive dissolves and the clamp piece 45 is detached from the edge main body 43, making the next application operation difficult, and the efficiency of the application operation being significantly reduced.
[0008]
The present invention has been made in view of the above-described conventional problems, can improve the straightness accuracy, and can form a coating film with a predetermined thickness on the surface of an object to be coated with high accuracy. An application tool including the application tool and the application tool capable of improving the efficiency of the application work without causing the next application work to be difficult even if it is washed with a cleaning liquid after the application work is completed. It is intended to provide.
[0009]
[Means for Solving the Problems]
The present invention employs the following means in order to solve the above problems. That is, the invention according to claim 1 is an edge support body having a slot for discharging a coating liquid onto an object to be coated, and an edge body made of cemented carbide attached to a tip portion of the edge support body facing the slot; A fastening body for fixing the edge body to the edge support, and the fastening body is a cemented carbide female piece formed integrally with the edge body, and is taper-fitted to the female piece. and Okoma said that through the edge support screwed into the Okoma consists of a fastening screw for holding said said female piece Okoma the fitted state, the edge support, the edge body It is provided with a long groove into which the female piece and the male piece enter when attached .
According to the coating tool of the present invention, the edge main body is positioned at the tip portion facing the slot of the edge support, and a cemented carbide female piece formed integrally with the edge main body, and a male piece made of steel, etc. The female piece and the male piece are held in the fitted state within the long groove of the edge support body by tightening the male screw with a fastening screw that penetrates the edge support body and tightening it. Is fixed integrally to the edge support.
[0010]
The invention according to claim 2 is the coating tool according to claim 1, wherein a plurality of the female pieces are provided at equal intervals in the edge body, and the male piece is taper-fitted between adjacent female pieces. The fastening screw is screwed into a female screw threaded on the male piece.
According to the coating tool according to the present invention, the male piece is positioned between the adjacent female pieces, both are taper-fitted, and the fastening screw penetrating the edge support is screwed into the female screw of the male piece and tightened. The female piece and the male piece are held in a fitted state.
[0011]
The invention according to claim 3 is the coating tool according to claim 2, wherein between the adjacent female pieces, there is provided a tapered surface that gradually narrows in a direction away from the edge main body, A taper surface having a taper angle matching the taper surface is provided, and both the taper surfaces are fitted to each other.
According to the coating tool according to the present invention, the male screw is positioned between the adjacent female pieces, the tapered surface between the female pieces and the tapered surface of the male piece are fitted to each other, and the fastening screw that penetrates the edge support is provided. By screwing and tightening the female screw of the male piece, the female piece and the male piece are held in a fitted state.
[0012]
The invention according to claim 4 is characterized by comprising the coating tool according to any one of claims 1 to 3.
According to the coating apparatus of the present invention, the coating liquid is applied to the surface of the object to be coated that is opposed to the coating tool by discharging the coating liquid from the slot of the coating tool.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 4 show an embodiment of an application tool according to the present invention. This application tool 2 includes a pair of edge supports 3 and 3 and an edge main body attached to each edge support 3. 13 and a fastening body 14 for fixing each edge body 13 to each edge support 3.
[0014]
As shown in FIGS. 1 and 2, the edge support 3 has a rectangular plate shape made of stainless steel or the like, and a columnar shape extending in the longitudinal direction between the edge supports 3 and 3. And a slot 5 which is a rectangular space having one end communicating with the pocket 4 and the other end opening at the tip surfaces of the edge supports 3 and 3. A supply hole (not shown) that penetrates one edge support 3 in the width direction communicates with the pocket 4, and the coating liquid is supplied from a supply source into the pocket 4 through the supply hole.
[0015]
At the front ends of both edge supports 3 and 3, the outer surface 6 is cut out at a predetermined depth over the entire length, and a mounting portion 7 that is thinner than the other portions is provided. A step 9 having a predetermined depth is provided at a portion of the inner surface 8 facing the slot 5 of the edge support 3, and an edge main body 13 is attached in the step 9.
[0016]
As shown in FIG. 2, a long groove 10 having a rectangular cross section communicating with the step portion 9 is provided over the entire length of the edge support member 3 on the back side of the step portion 9 of each edge support member 3. 10, a female piece 15 and a male piece 17 of a fastening body 14 to be described later are provided between the inner surface of the long groove 10 with a predetermined gap.
[0017]
On the outer surface 6 of each edge support 3 corresponding to the long groove 10 of each edge support 3, as shown in FIG. 2, a through hole 11 communicating with the long groove 10 extends along the longitudinal direction of each edge support 3. A fastening screw 21 of a fastening body 14, which will be described later, is inserted into each through hole 11 and provided at predetermined intervals. The opening located on the outer side surface 6 of the edge body 3 of each through hole 11 is formed in a circular recess 12 having a larger diameter than the through hole 11 where the head 22 of the fastening screw 21 is positioned.
[0018]
The edge main body 13 has a rectangular plate shape made of a cemented carbide having high hardness and high rigidity, and both end faces in the longitudinal direction are edges when positioned in the stepped portion 9 of the edge support 3. The both ends of the support 3 in the longitudinal direction are flush with each other, the tip protrudes outward from the tip of the edge support 3 by a predetermined amount, and one side surface 13 a facing the slot 5 is in the slot 5 of the edge support 3. The dimensions of each part are set so as to be flush with the facing inner surface 8.
[0019]
As shown in FIGS. 2 to 4, the fastening body 14 is adjacent to a plurality of female pieces 15, 15... Integrally provided at predetermined intervals along the longitudinal direction on the other side surface 13 b of the edge body 13. A male piece 17 fitted between the female pieces 15 and 15 and a fastening screw 21 that passes through the edge support 3 and is screwed to the male piece 17 are provided.
[0020]
As shown in FIGS. 3 and 4, each female piece 15 is formed of a cemented carbide plate formed integrally with the edge main body 13, and both side surfaces located in the longitudinal direction of the edge main body 13. 15a and 15a are formed in the taper surface which becomes wide gradually as it leaves | separates from the edge main body 13, and both side surfaces 15a and 15a located in the longitudinal direction of the edge main body 13 between the adjacent female pieces 15 and 15 by this taper surface are edge main bodies. A fitting space 20 is formed, which is a tapered surface space that gradually becomes narrower as the distance from 13 increases. Each female piece 15 is positioned in the long groove 10 communicating with the step portion 9 when the edge body 13 is positioned in the step portion 9 of the edge support 3.
[0021]
As shown in FIGS. 3 and 4, each male piece 17 has a tapered surface (edge body 13 having both side surfaces 17 a, 17 a positioned in the longitudinal direction of the edge body 13 and the tapered surface of the fitting space 20. In the fitting space 20, it is configured to be movable in the direction of the edge body 13.
[0022]
As shown in FIGS. 3 and 4, a female screw portion 17 b that penetrates in the direction orthogonal to the longitudinal direction of the edge main body 13 is screwed at the center of each male piece 17, and a fastening screw 21 is attached to the female screw portion 17 b. It is designed to be screwed together.
[0023]
As shown in FIGS. 2 and 3, the fastening screw 21 is, for example, a hexagon bolt, a hexagon socket head bolt, etc., and is integrated with the head 22 located in the recess 12 of the edge support 3 and the head 22. The male screw portion 23 is inserted into the through hole 11 and is screwed into the female screw portion 17 b of the male piece 17 in the fitting space 20.
[0024]
And the male piece 17 is located in the fitting space 20 between the female pieces 15 and 15 of the edge main body 13 comprised as mentioned above, and the edge main body 13 is located in the step part 9 of the edge support body 3 in this state. Then, the female piece 15 and the male piece 17 are positioned in the long groove 10, the fastening screw 21 is inserted into each recess 12 and each through hole 11 of the edge support 13, and the fastening screw is inserted into the female screw 17 b of each male piece 17. The edge main body 13 is integrally fixed to the edge support 3 by screwing the male threaded portion 23 of 21 and tightening with a predetermined torque, and the coating tool 2 is configured.
[0025]
And as shown in FIG. 1, the coating device 1 by this invention is comprised using the coating tool 2 comprised as mentioned above, and a coating liquid is supplied in the pocket 4 via the supply hole of the coating tool 2 from a supply source. When supplied, the coating liquid is guided from the pocket 4 to the slot 5 and discharged from the opening of the slot 5 toward the sheet-like object to be coated 24 (a glass substrate used for a liquid crystal display panel or the like). A coating solution is applied to the surface to form a coating film having a predetermined thickness.
[0026]
In the coating tool 2 and the coating apparatus 1 according to this embodiment configured as described above, the edge main body 13 and the female piece 15 of the fastening body 14 are integrally formed. The distortion due to the difference does not occur, and the edge main body 13 does not warp or bend. Therefore, when the edge main body 13 is attached to the edge support 3, the edge main body 13 is not warped or bent, so that the straightness accuracy of the edge main body 13 can be greatly increased, and the surface of the object 24 to be coated is obtained. Thus, a coating film having a predetermined thickness can be formed with high accuracy.
[0027]
Further, since the edge main body 13 and the female piece 15 are integrally formed, even if the edge main body 13 and the female piece 15 are washed with the cleaning liquid after the application work, both of them are detached to make the next application work difficult. The efficiency of the coating operation can be greatly increased.
[0028]
Furthermore, since the taper surfaces of the female piece 15 and the male piece 17 are fitted to each other and are held by the fastening screw 21 in the fitted state, the female piece 15 and the male piece 17 are disposed between the female piece 15 and the male piece 17 during the coating operation. The gap dimension of the slot 5 between the edge supports 13 and 13 is not distorted, and the gap dimension of the slot 5 can be kept constant for a long time in a maintenance-free state. It will be possible. Therefore, a coating film having a predetermined thickness can be formed on the surface of the object to be coated 24 over a long period of time, so that the efficiency of the coating operation can be significantly increased.
[0029]
【The invention's effect】
As described above, according to the coating tool and the coating apparatus of the present invention, since the cemented carbide edge body and the cemented carbide female piece of the fastening body are integrally formed, both There is no difference in thermal expansion coefficient between the edges, and no warping or bending occurs in the edge body. Therefore, when the edge body is attached to the edge support, the edge body does not warp or bend, so that the straightness accuracy of the edge body can be greatly increased, and the surface of the object to be coated has a predetermined thickness. The coating film can be formed with high accuracy. Also, since the edge body and female piece are formed integrally, even if the edge body and female piece are washed with a cleaning solution after the application work, they will come off and make the next application work difficult. However, the efficiency of the coating operation can be greatly increased.
In addition, the female piece and the male piece are taper-fitted in the long groove of the edge support , and are held in a state of being fitted by a fastening screw between them, so that the fitting state of both is maintained during the coating operation. There is no possibility that the slot gap between the edge supports is distorted by loosening, and the slot gap can be kept constant for a long time in a maintenance-free state. Therefore, since a coating film having a predetermined thickness can be formed on the surface of the object to be coated over a long period of time, the efficiency of the coating work can be significantly increased.
[Brief description of the drawings]
FIG. 1 is a schematic view showing an embodiment of a coating tool and a coating apparatus including the coating tool according to the present invention.
FIG. 2 is a partially enlarged view of the application tool of FIG.
3 is a plan view showing a relationship between an edge support and a fastening body of the coating tool of FIG. 1. FIG.
4 is a front view of FIG. 3. FIG.
FIG. 5 is a schematic view showing an example of a conventional coating tool.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Application | coating apparatus 2 Application | coating tool 3 Edge support body 13 Edge main body 14 Fastening body 15 Female piece 17 Male piece 21 Fastening screw 24 Application thing

Claims (4)

An edge support having a slot for discharging a coating liquid onto an object to be coated, an edge body made of cemented carbide attached to a tip of the edge support facing the slot, and the edge body as the edge support A fastening body for fixing, the fastening body penetrating through the edge support body, a female piece made of cemented carbide integrally formed with the edge body, a male piece taper-fitted with the female piece, and the edge support body And a fastening screw that is screwed to the male piece and holds the female piece and the male piece in a fitted state ,
The said edge support body is provided with the long groove into which the said female piece and the said male piece enter when the said edge main body is attached, The coating tool characterized by the above-mentioned . 2. The application tool according to claim 1, wherein a plurality of the female pieces are provided at equal intervals on the edge body, the male pieces are taper-fitted between adjacent female pieces, and are screwed into the male pieces. An application tool, wherein the fastening screw is screwed into a female screw. 3. The application tool according to claim 2, wherein a taper surface that gradually narrows in a direction away from the edge body is provided between the adjacent female pieces, and the male piece has a taper angle that matches the tapered surface. A taper surface is provided, and both the taper surfaces are configured to be fitted to each other. A coating apparatus comprising the coating tool according to any one of claims 1 to 3.

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