JPH06277412A - Filtration device - Google Patents

Abstract

PURPOSE:To provide a filtration device which is capable of replacing a filter in a short time and free from a decrease in filtration efficiency. CONSTITUTION:The filtration device of metal through which a resin liquid containing a resin and a solvent passes is equipped with a handled cloth filter 2 of a solvent-resistant fiber installed before the passage of the resin liquid through the metal filter 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter for a metal filter through which a resin and a resin liquid composed of a solvent pass.

[0002]

2. Description of the Related Art For example, in order to manufacture a resin plate, a resin impregnated in an impregnation tank is impregnated with a resin such as epoxy resin or phenol resin stored in the impregnation tank. The resin used for this impregnation is filtered and used in order to prevent a cured product of the resin and a foreign substance from entering. As a filter used for this filtration, a metal filter composed of a metal net is used because it filters a resin having a high viscosity. And
When the impregnation tank and the piping around the impregnation tank are washed with a solvent, since the resin liquid consisting of this solvent contains a large amount of hardened resin and foreign matter, the resin liquid should be passed through the pipe to which the metal filter is attached. Metal filters cause clogging. As a result, the metal filter must be frequently removed from the pipe and replaced, which is a time-consuming replacement.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above facts, and an object of the present invention is to provide a filtration device which can replace a filter in a short time and which does not reduce the efficiency of filtration. Especially.

[0004]

The filtration device of the present invention is a filtration device in which a resin and a resin liquid composed of a solvent pass through the metal filter (1), wherein the resin liquid is the metal filter (1). Before passing through the filter, a cloth filter (2) with a handle and made of fiber having solvent resistance is provided.

[0005]

According to the filtration device of the present invention, since the cloth filter made of fiber having solvent resistance is provided in front of the metal filter, pull out the handle of the cloth filter and replace it with a new cloth filter. Even if a part of the cloth filter is damaged, it is safe because it is filtered by the metal filter installed at the rear.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings related to the embodiments.

FIG. 1 is a sectional view showing an entire structure according to an embodiment of the present invention, FIG. 2 is a transverse sectional view taken along line ab of FIG. 1, and FIG. 3 is a perspective view of a filter. .

The resin filtered by the filter of the present invention includes epoxy resin, phenol resin, polyimide resin,
Fluorine resin, unsaturated polyester resin, PPO resin and the like can be mentioned. As the solvent used for the resin liquid, various solvents such as methyl ethyl ketone and acetone which dissolve the above resin can be mentioned.

As the metal filter (1) used in the above-mentioned filtration device, since a resin having a high viscosity is filtered, S
A metal net made of US is used. As shown in FIG. 4 (a), the structure of this metal filter (1) is cylindrical, and the resin is supplied from the open top surface, and the resin passes through the side and bottom surfaces formed by the metal net. Filtered. A flange (22) is provided on the upper surface of the metal filter (1).
Has a handle (23) that is convenient to carry.

As the cloth filter (2) used in the present invention, a solvent resistant fiber is used. For example, when the solvent is acetone, a cloth made of a fiber such as Teflon or polyethylene can be used. It is determined as appropriate. The structure of this cloth filter (2) is shown in FIG.
As shown in (b), a cylindrical shape having an open upper surface, the side surface and the bottom surface formed of the cloth, and a handle (5) such as a wire crossing the open upper surface at the end of the upper side surface is attached. To be

As shown in FIG. 3, a housing (10) is provided in a pipe through which a resin or a cleaning solvent passes, as an embodiment of the filtering device of the present invention. The shape of the housing (10) may be cylindrical or rectangular in cross section. A lid (14) that can be opened and closed is provided on an upper surface of the housing (10), a supply port (3) for supplying a resin or a cleaning solvent is provided on an upper side surface thereof, and a bottom surface of the housing (10) is inclined. Discharge port (4) through which resin or cleaning solvent is discharged to the bottom surface with the lowest slope
Is provided. A boundary plate (13) for partitioning the housing (10) is provided in the upper area (11) having the supply port (3) and the lower area (12) having the discharge port (4). A hole (15) having the same diameter as that of the cylindrical metal filter (1) is opened in the approximate center. The metal filter (1) has the hole (15).
To the upper area (11), and the side surface and the bottom surface formed of a metal net project from the hole of the boundary plate (13) to the lower area (12). The flange (22) provided on the upper side surface of the metal filter (1) is in contact with the upper surface of the boundary plate (13) and is fixed to the boundary plate (13) with screws or the like. As shown in FIG. 3, the side surface and the bottom surface of the metal filter (1) are in contact with each other, and the side surface and the bottom surface of the cloth filter (2) made of the solvent resistant fiber are in contact with each other. The handle (5) provided on the upper side end of the cloth filter (2) is exposed on the upper surface of the metal filter (1). From the inside of the upper surface of the cloth filter (2), press it with a ring-shaped spring (not shown),
It is preferable that the side surface of the metal filter (1) and the side surface of the cloth filter (2) come into close contact with each other.

When the filtration device of the present invention is used, when the resin liquid is filtered, the resin liquid supplied from the supply port (3) is discharged from the upper surface of the cloth filter (2) opened to the cloth filter (2). It enters the inside, is filtered by the side surface and bottom surface of the cloth filter (2) and the metal filter (1), and is discharged from the discharge port (4). Even if clogging occurs due to a cured product or foreign matter of the resin contained in the resin liquid, the lid (14) of the housing (10) is opened and the handle (5) of the clogged cloth filter (2) is removed. Pull out,
It does not take time to install a new cloth filter (2), and the cloth filter (2) can be replaced in a short time. Even if a part of the cloth filter (2) is damaged, it is safe because it is filtered by the metal filter (1) provided at the rear.

[0013]

Since the filter (2) made of cloth is replaced in a short time by the filtration device of the present invention, it does not take much time to replace the filter. Since the metal filter (1) is provided on the rear side, it is safe even in a situation where a part of the cloth filter (2) is damaged.

[Brief description of drawings]

FIG. 1 is a sectional view showing an entire structure according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view taken along the line ab of FIG.

FIG. 3 is a perspective view of a filter according to an embodiment of the present invention.

4A is a perspective view of a metal filter used in FIG. 3, and FIG. 4B is a perspective view of a cloth filter used in FIG.

[Explanation of symbols]

 1 Metal filter 2 Fabric filter 3 Supply port 4 Discharge port 5 Handle 11 Upper area 12 Lower area 13 Boundary plate 14 Lid 15 Hole 22 Flange 23 Handle

Claims (1)

[Claims] 1. A filtration device in which a resin and a resin liquid composed of a solvent pass through a metal filter (1), which has a handle before the resin liquid passes through the metal filter (1), and A filter device comprising a cloth filter (2) made of fiber having solvent resistance.