JPH0141509Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> The invention is based on a vibrating sieving screen, more specifically, the screen itself is capable of minute movements independent of the sieving machine body, and this movement is utilized to create a vibrating sieving screen. This invention relates to a vibrating screen for preventing clogging.

<Prior art> A screen for a sieving machine is used by attaching it to the sieving machine body, and usually hook-shaped fittings are connected to both sides of the screen itself, and these fittings are attached to the sieving machine body. It has a similar structure. For example, the configuration is as shown in FIGS. 1 to 3 of Japanese Utility Model Publication No. 54-45256, or as shown in FIG. 4 to prevent the mesh from becoming loose. That is, conventionally, in order to create a structure in which the net does not loosen as much as possible, emphasis has been placed on connecting the net and the fixtures as strongly as possible. It is true that if the net becomes loose, as shown in the above-mentioned Utility Model Publication No. 54-45256, the net will flap and constantly come into contact with the tip of the support frame on the back, damaging the net. Therefore, as mentioned above, it is important to prevent the net from becoming loose.

However, no matter how long the lifespan of a screen is, it cannot be said to be useful unless it is used for sufficient sifting work, and as a screen for a sifting machine, it must be used to avoid clogging during the day. If you wake me up,
Sieving efficiency is significantly reduced. By the way, various types of nets such as those shown in the above-mentioned Japanese Utility Model Publication No. 54-45256 are susceptible to clogging because tension is applied to the wires that constitute the net. The more tension is applied to the net itself, the more firmly the net is fixed, and the net itself does not flap, resulting in powdery matter adhering to the net. This adhesion of powder is even more severe when the object to be treated is wet, and temporarily it even loses its sieving effect. Therefore, there is a method in which a tapping ball is arranged under the net so as to move up and down, and when the tapping ball is hit, the deposits are dropped and removed.
Methods such as placing a heavy object such as a chain on the net surface and hitting the net surface with the vibrations have been considered, but none of these methods have been very effective considering the amount of damage to the net. This is the current situation.

<Problems to be solved by the invention> The invention solves the above-mentioned problems, and while the net as a whole can be attached to the sieving machine body with appropriate tension, it is possible to prevent minute clogging in certain parts of the net. The object of the present invention is to provide a vibrating sieve net that can prevent such problems.

<Means for solving the problems> The means adopted by the applicant in order to achieve the above object of the present invention are as follows. That is, tensile bodies such as wires or wire ropes are arranged approximately parallel to the back surface of the net body at required intervals, and at discrete positions between the net body and the tensile bodies, This vibrating sieve net is characterized in that it is connected directly or indirectly to the outer periphery of a tensile body through a pipe wrapped around the outer periphery of the tensile body, and the protruding portions at both ends of the tensile body are attached to the sieving machine body.

In addition, when fitting the outer periphery of the tensile material to the pipe,
It is more effective to form a loose fit with a gap between the two because the net body can move more freely.

<Effect> The action of the vibrating sieve net of the present invention will be described below.

The vibrating sieve net of the present invention has a tensile member 2 disposed on the back surface of the net main body 1, as shown in FIG. 1, for example.
A pipe 4 may be connected to the net body 1 at discrete positions using an appropriate joining means 3 such as welding or adhesive, or a pipe 4 may be loosely fitted around the tensile member 2 as shown in FIG. It is also joined to the net main body 1 at discrete positions by means of joining means 3. In addition, the joining means 3 may be present only at the joints as shown in FIGS.
A strip of rubber or the like is interposed between the tensile member 2 or the pipe 4 over the entire length thereof, and the strip is inserted into the net body 1 at discrete positions.
Sometimes it is joined with. In either case, the protrusions at both ends of the tensile member 2 are attached to the sieving machine body, and the net body 1 itself is not directly attached to the sieving machine body. Therefore, in the vibrating sieve net of the present invention, in the one shown in FIG. 1, the net main body 1 can move up and down between the joining means 3, and in the one shown in FIG. In addition to the movement of the object shown in the figure, the gap between the pipe 4 and the tensile member 2 allows for free movement, so the net body 1 locally flaps during use, which causes the powder to form. This prevents body adhesion and clogging.

<Examples> The present invention will be described in detail below with reference to drawings showing examples thereof.

Fig. 3 is a partially cutaway perspective view of an embodiment of the present invention;
The figure shows an enlarged explanatory view of the same main part. As shown in FIGS. 3 and 4, in this embodiment, several plastic pipes 4 are loosely fitted around a tensile member 2 made of wire, and several pipes are arranged approximately parallel to each other in the net body 1. This plastic pipe 4 is connected to the net body 1 at some places by connecting means 3 made of plastic adhesive.
Both ends of the tensile member 2, which is joined with the pipe 4 and protrudes from both open ends of the pipe 4, are connected to a fixture 5, and are attached to the sieving machine main body 6 via the fixture 5 as shown in FIG. It is structured as follows.

When the vibrating sieve screen of this example was used to sieve crushed stone and limestone containing a considerable amount of water, almost no clogging occurred.

<Effects of the invention> As described above, according to the invention, the screen body is not directly attached to the sieving machine body, but is joined to the tensile body, and moreover, the screen body is not directly attached to the sieving machine body, but is connected to the tensile body, rather than over the entire area. Since the net is only joined at irregular positions and no tension is applied directly to the net itself,
During use, the main body of the screen can make its own flapping motion, which prevents powder from adhering to the screen and improves sieving efficiency. Moreover, since this fluttering movement of the net body is localized, the vertical vibration amplitude is not so large that it does not damage the net, and on the contrary, the net body is not directly subjected to tension. There is also the effect that wear and tear on the main body is reduced, and the net main body can be used repeatedly over a long period of time by replacing the tensile members.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams for explaining the operation of the present invention, FIG. 3 is a partially cutaway perspective view of an embodiment of the present invention, and FIG. 4 is an enlarged explanatory diagram of the main part thereof. In the figure, 1... Net main body, 2... Tensile body, 3... Joining means, 4... Pipe, 5... Fittings, 6... Sieving machine main body.

Claims (1)

[Scope of utility model registration request] Tensile bodies such as wires or wire ropes are arranged approximately parallel to the back surface of the net body at required intervals, and direct Alternatively, a vibrating sieving net characterized in that it is indirectly connected to the outer periphery of a tensile body via a pipe wrapped around the tensile body, and the protruding portions at both ends of the tensile body are attached to the sieving machine body.