JPH048962Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a filter medium used in a filter having a plate or frame, and particularly relates to a material for a filter in which the through holes of the material are improved.

Conventional technology Conventionally, the outer periphery of cloth is stretched with wire, and the inner periphery is cut into a deep cut groove as wide as the width of the cloth picture frame. Cloth is arranged between the plates and tightened together with the plates to prevent liquid leakage from between the plates during overloading (Utility Model Publication No. 45-9263)
is known.

Problems to be Solved by the Invention However, although the above example improves the seal between the cloth picture frame and the board picture frame and prevents liquid from leaking from the periphery of the cloth picture frame due to capillary action, In particular, the sealing method involves too many sealing processes and is complicated to stop leaking liquid concentrated from the liquid passage surface by simple means. Furthermore, if the seal frame made of rubber material is fitted only into the through hole of the material, there is a risk that the sealing performance will be deteriorated, and the tightening operation between the plates will also become difficult.

Therefore, an object of the present invention is to provide a material for a filter machine that can stop leaking liquid that concentrates from leaking out from the holes in the material sandwiched between the holes in the plate or frame by a simple means. This is what we are trying to provide.

Means for Solving the Problems The present invention applies a sealing material made of a film or sheet of rubber material or synthetic resin to the edge of a through hole in a material, and connects the through hole of the material to which the sealing material is applied. Or arrange the above materials between boards or frames by matching the through holes drilled in the frame,
In a material used in a filter machine that performs filtration by supplying and discharging fluid to a communication path formed by the arrangement of the above-mentioned through holes, the above-mentioned sealing material has an outer periphery within the tightening area of the material and a passage through the center. It consists of a molded body in which a pair of flexible thin membranes with holes are connected at the periphery of both through holes and integrally molded to have a V-shaped cross section perpendicular to the peripheral surface. Pass it through the through hole of the material, spread it out on the fabric surface on both sides of the through hole of the material together with the flexible thin film piece on the other side, and blend the material through the through hole of the material. It is a material used in perforation equipment, which is characterized by coating and sealing the inside of the through hole.

Further, the pair of flexible thin film bodies may be made of a thermoplastic thin film, and a filamentous body may be laminated on the thin film.

Effect of the invention A pair of flexible thin films with a through hole in the center are connected at the periphery of both through holes and integrally molded so that the cross section in the direction perpendicular to the peripheral edge surface is V-shaped, and one side of this molded body is connected to the through hole of the material. , spread it over the periphery of the hole in the material along with the other side, and apply both thin film pieces to the fabric surface on both peripheries of the hole in the material to reduce the thickness of the hole in the material at the V-shaped connecting part. Cover the directional cross section. The through holes in the covered material are overlapped with the through holes in the plate or frame to form a tightening communication path.

EXAMPLE The present invention will be explained using figures. In FIGS. 1 and 2, 1 is a sealing molded body passed through a through hole 3 of a material 2, and a pair of thin films 4 and 5 of polyethylene film are shown.
are integrally molded by connecting them at both peripheral edges of through holes 6, 6 opened in the center. This pair of thin films 4,
The peripheral edge of 5 is within the frame of material 2. On the right side of Figure 2, the thin film 4 on one side (right side) of the molded body 1 is shown passing through the left side of the through hole 3 of the material 2 and coming out to the right, and the thin film 5 on the left side is shown as it is through the through hole 3 of the material 2. It is applied to the fabric around the left side of hole 3. The thin film 4 brought out on the right side is spread out on the fabric surface around the through hole 3 of the material 2 together with the thin film 5 on the left side, and a hand or a suitable plate-like object is pressed onto it. Further, if necessary, an adhesive may be applied partially or heated as needed. Figures 3 and 4 show the state in which the thin films 4 and 5 are applied to the surface of the material 2. At this time, even if the thin film surface is slightly loosened, there is no problem with sealing performance. The connecting portions of the peripheral edges of the through holes 6 of the thin films 4 and 5 overlap along the inner peripheral edge of the through hole 3 of the material 2, and
The thickness direction cross section of the through hole 3 is completely covered.

In the above example, the thin films 4 and 5 include a polypropylene film or sheet in addition to a polyethylene film or sheet, and these sheets or films are covered with a patch cloth such as gauze fabric. Alternatively, thin oil paper or the like may be suitably cut and shaped in the same manner. It may also be a polyvinyl chloride sheet with a coarse mesh fused to it.
These nets are made by coarsely weaving cotton yarn, synthetic fiber yarn, or ultra-fine wire. Further, the shape of the thin films 4 and 5 is not limited to circular, but may be square.
Further, it is preferable that the interval between the connecting portions of the molded body is appropriate to the thickness of the material 2.

The material 2 formed as described above is sandwiched between the plate 7 and the plate 7 as shown on the left side of FIG. 2, and is tightened together with the plate 7 by a tightening device (not shown), and overloading is performed as usual. At this time, whether the liquid passing through the through hole 6 is the liquid to be passed through or the liquid to be passed through and discharged outside the machine, the cross section in the thickness direction of the through hole 3 of the material 2 is the thin film 4, Since the through hole 6 of the material 2 is covered by the 6 parts of the through hole 3, there is no liquid that passes through the material 2 from the thickness direction cross section of the through hole 3 of the material 2 and leaks to the outside. In addition to being sandwiched between ordinary plates 7, 7, the material 2 is also used between frames or between plates. Furthermore, the plate may be a compressed type plate provided with a compressed membrane.

In addition, the present invention is not limited to a through hole made in the picture frame 8 of a board or frame, but also a through hole made in a raised area in the center of the board similar to the picture frame, or a hole that protrudes outward from the picture frame of the board or frame. The material can be similarly applied to a material having a through hole that matches either of the holes drilled in the ear portion.

Effects of the invention Since the present invention has the above configuration,
It can be easily installed by passing it through the hole in the material. Further, the molded body of the present invention can be easily passed through a hole in the attached material to be attached. In addition, the material attached through the molded body of the present invention is sandwiched between plates or frames to allow liquid to pass through it,
Even if the filtration is carried out for a long time, there is no liquid that passes through the material and leaks to the outside, especially from the cross section in the thickness direction within the through holes of the material. Therefore, solids do not accumulate in the holes in the plate, in the frame, or in the material. Further, the molded body can be conveniently attached to a through hole in the material by simply suspending overwork.

[Brief explanation of the drawing]

Fig. 1 is a front view showing the through-hole part of the material according to the present invention superimposed on the through-hole part of the plate, Fig. 2 is a cross-sectional view showing the through-hole part of Fig. 1 longitudinally, and Fig. 3 is a FIG. 4 is a partially enlarged view of the through hole shown in FIG. 1, and FIG. 4 is a side view of the through hole seen from inside the through hole shown in FIG. 1... Seal molded body, 2... Material, 3...
Through hole in material, 4, 5... Thin film of molded body, 6... Through hole in molded body, 7... Plate.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. Applying a sealing material made of a film or sheet of rubber material or synthetic resin to the periphery of a through hole in a material, and applying this sealing material to the through hole in the material and the plate or frame. Arrange the above-mentioned materials between boards or frames, matching the holes that have been opened,
In a material used in a filter machine that performs filtration by supplying and discharging fluid to a communication path formed by the arrangement of the above-mentioned through holes, the above-mentioned sealing material is such that the outer circumference of the periphery is within the tightening area plane of the material, and the center of the material is It consists of a molded body in which a pair of flexible thin films with through holes are connected at the periphery of both through holes, and the cross section in the direction perpendicular to the peripheral edge surface is V-shaped. Pass it through the through hole of the material and spread it together with the flexible thin film piece on the other side onto the fabric surface on both sides of the through hole of the material to blend it, so that the cross section in the thickness direction of the through hole of the material becomes the V-shaped connecting part of the molded body. A material used in perforation equipment, which is characterized by being coated with and sealing the inside of the through hole. 2. The material for a permeable machine according to claim 1, wherein the pair of flexible thin films are made of thermoplastic thin films, and a filamentous body is laminated on the thin films.