JPH0615760U - Liquid coating device - Google Patents

Abstract

(57) [Summary] [Object] To provide a liquid application device suitable for applying a liquid such as a resist to a specific position on the surface of a ceramic material having a special shape. [Structure] The two planes intersect each other at an angle to form a wall, and each inner surface of the wall is provided with a groove for liquid storage parallel to the intersection line of the two planes. A liquid application device in which a liquid supply port is opened in the groove, and a liquid supply pipe for supplying the liquid to the liquid storage groove is connected to the liquid supply port.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a liquid application device suitable for applying a liquid such as a resist to the surface of the above composite when etching an unnecessary portion of the metal film of the ceramic-metal film composite.

[0002]

[Prior art]

 Conventionally, in order to obtain a ceramic-metal film composite, a resist is applied to a portion other than unnecessary portions of the metal film formed on the entire surface of the ceramic material and cured, and the metal film not covered with the resist is etched. The method of removal is adopted.

As shown in FIG. 2A, in the case of a ceramic material having a shape in which a wall 5 protruding from the plane of the plate is provided around the plate 4 of the quadrangle, 2 (b) (AA cross-sectional view of FIG. 2 (a)), that is, a portion shown by a thick line, that is, the inner surface, the outer surface and the upper surface of the wall body 5 is coated with a resist. Moreover, the coating is applied so that the coating width on the outer surface is larger than the coating width on the inner surface.

The following method has been adopted as a method for applying the resist to the ceramic material as described above. That is, first, the steps of arranging the ceramic materials in a line vertically so that the outer surface of the wall body 5 faces up and applying a resist by a method such as screen printing with a predetermined coating width, and the inner surface of the wall body 5 in a shallow container. The resist is filled to the depth corresponding to the coating width, and the wall 5 of the ceramic material is dipped in the inside so as to have a predetermined coating width on the inner surface of the wall 5 and the resist on the upper surface of the wall 5. It is a method consisting of two steps of applying.

[0005]

[Problems to be solved by the device]

 However, according to the above method, the work of applying the resist to the wall body of the ceramic material involves two steps, and in the first step, there are also four outer surfaces of the wall body for each ceramic material. A lot of manpower was required for the work of arranging the outer walls of the walls in a vertical line, and the workability was not always good.

[0006]

[Means for Solving the Problems]

 In view of the above problems, the inventor of the present invention can easily achieve accuracy even if the shape of the ceramic material is a quadrilateral plate-shaped body around which a wall protruding from the plane of the plate-shaped body is provided. As a result of various studies aimed at developing an apparatus for applying resist well, the present invention has been proposed.

That is, according to the present invention, a liquid reservoir groove is provided parallel to the intersection of the two planes on each of the inner surfaces of the intersecting two-plane wall, and the liquid reservoir groove has a liquid reservoir groove. This is a liquid application device in which a supply port is opened and a liquid supply pipe for supplying a liquid to a liquid storage groove is connected to the liquid supply port.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

In the following description, the case of applying a resist to a ceramic material will be described, but the present invention is not limited to this, and molded bodies of various shapes and materials have relatively high viscosity. It is applicable when applying a liquid.

FIG. 1 is a perspective view of a liquid application device of the present invention.

The wall 1 is formed by intersecting two planes in a V shape at an angle. The angle (θ) formed by the two planes is determined according to the difference in the coating width of the resist applied to the inner surface and the outer surface of the wall body 5 of ceramic material. However, when θ is too small, there is a risk that the resist will flow out even if the resist is put into the liquid reservoir groove 3 described later. On the contrary, when θ is too large, the wall 5 made of the ceramic material is used. Since it is almost impossible to provide a difference in the coating width of the resist on the inner surface and the outer surface of θ, θ is usually selected from the range of 60 to 120 °.

Further, on each of the inner side surfaces of the wall 1, a groove 3 for holding a liquid is provided in parallel to the intersection line 2 of the two planes. The position where the groove 3 for storing the liquid is provided is determined according to the shape of the ceramic material. For example, when the ceramic material is a square or a rectangle, the liquid storage grooves 3 are provided on the inner side surface of each wall 1 so as to be symmetrical about the intersection line 2. A resist is put in the groove 3 for storing the liquid. The shape of the cross section taken along a plane perpendicular to the intersection line 2 of the liquid reservoir groove 3 may be any shape as long as it can hold the liquid of the resist, and is not limited at all. For example, as shown in FIG. 3, a triangle (a), a trapezoid (b), a rectangle (c) and the like can be mentioned. The length and depth of these liquid reservoir grooves 3 may be determined according to the size of the ceramic material, the resist coating width and the viscosity.

In the present invention, as shown in FIG. 1, a liquid supply port 6 is provided in all of the above-mentioned liquid reservoir grooves 3. The position at which the liquid supply port 6 is provided is not particularly limited, and may be either a side face or a bottom face as long as it is a wall face forming the liquid reservoir groove 3.

Further, as shown in FIG. 4 which is a cross-sectional view of FIG. 1, one end of the liquid supply pipe 7 is connected to the liquid supply port 6 below a wall formed by two intersecting planes. . The liquid supply pipe may be a hole formed in the liquid application device body when the liquid application device body is solid, or may be simply a pipe when the liquid application device body is hollow. The liquid supply pipes from the grooves for each liquid reservoir may independently open at the other end on the side surface or the bottom surface of the liquid application apparatus main body, and as shown in FIG. They may collectively form openings on the side surface or the bottom surface of the liquid application device.

A liquid backflow prevention device is preferably provided at the other end of the liquid supply pipe 7. As a liquid backflow prevention device, as shown in FIG. 4, at the other end of the liquid supply pipe 7, a sphere 8 smaller than the inner diameter of the liquid supply pipe 7 is provided in the liquid supply pipe, and the sphere 8 is The inner diameter of the tip of the liquid supply pipe is made smaller than the outer diameter of the sphere 8 so as not to go out of the supply pipe, and a spring 9 for preventing the backflow of the liquid by pressing the sphere 8 against the tip is provided. The structure inside the liquid supply pipe is preferably used in the present invention because of its simple structure.

A method of coating a resist on a ceramic material using the liquid coating apparatus of the present invention will be described. First, a groove 3 for liquid storage is filled with a resist from a liquid supply port 6 through a liquid supply pipe 7. It At this time, the apparatus for injecting the resist into the liquid supply pipe 7 has a projection at the tip of the injection port, and when the tip of the injection port is connected to the other end of the liquid supply pipe 7, the projection at the tip of the injection port becomes liquid. A device is used in which a sphere of the backflow prevention device is pushed to form a gap between the tip of the liquid supply pipe and the sphere, and the resist is injected from the gap. When the injection of the resist is completed, the sphere 8 in the liquid supply pipe is pressed by the force of the spring 9 against the tip of the liquid supply pipe 7 whose inner diameter is narrowed, and the backflow of the liquid is prevented. The excess resist supplied to the groove for storing the liquid is scraped off by a known means such as a doctor blade. Next, the wall 5 made of ceramic material is dipped in the groove 3 for storing liquid and then pulled up. In this way, the resist can be applied to the pair of opposing walls of the ceramic material. When the resist is applied to the remaining pair of walls, the above operation is repeated, or as shown in FIG. 5, a pair of liquid storage grooves 3 for applying to the remaining pair of walls 3 is used. ′ Is separately provided, and two pairs of wall bodies are sequentially dipped into these two pairs of reservoir grooves 3 and 3 ′.

[0017]

【effect】

 According to the liquid application device of the present invention, the inside and the outside of the wall body 5 of the ceramic material in which the wall body 5 protruding from the plane of the plate body is provided around the above-mentioned quadrilateral plate body 4 are different. When the resist is applied with a coating width of a certain amount, it can be easily performed with only one operation. At that time, the difference between the coating widths of the inner side and the outer side of the wall body 5 can be easily adjusted by appropriately selecting the angle (θ) formed by the two planes. It can be adjusted by selecting the depth of the groove for use.

Further, since the resist is supplied from the liquid supply port via the liquid supply pipe, it can be rapidly and accurately supplied.

Therefore, by using the liquid coating apparatus of the present invention, it is possible to easily obtain a ceramic material coated with a resist having an arbitrary coating width.

[Brief description of drawings]

FIG. 1 is a perspective view of a liquid application device of the present invention.

FIG. 2 is a molded body to which a liquid is applied.

FIG. 3 is a schematic view showing a cross-sectional shape of a groove for liquid storage.

FIG. 4 is a cross-sectional view of the liquid coating device of the present invention.

FIG. 5 is a perspective view showing another embodiment of the liquid applying apparatus of the present invention.

[Explanation of symbols]

 1 Wall 2 Intersection Line 3 and 3'Groove for Liquid Storage 4 Plate-like Body 5 Wall 6 Liquid Supply Port 7 Liquid Supply Pipe 8 Ball 9 Spring

Claims (1)

[Scope of utility model registration request] 1. A liquid reservoir groove is provided in parallel to the intersection of the two planes on each of the inner side surfaces of the intersecting two-plane wall, and a liquid supply port is opened in the liquid reservoir groove. A liquid application device comprising a liquid supply pipe for supplying a liquid to a liquid reservoir groove and a liquid supply port.