JPS5833829Y2 - Unit block for rubber screen - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rubber screen used for screening ore, crushed stone, etc., and particularly to a unit block used when assembling the rubber screen.

Metal sieves have traditionally been used to screen iron ore, crushed stone, etc.

However, these metal sieves have the drawbacks of noise problems, severe abrasion, especially depending on the material being sieved, poor durability, and reduced throughput for repair and maintenance.

In order to eliminate these drawbacks, rubber sieves, so-called rubber screens, have come into widespread use, and the lifespan of the sieves has also tended to be extended.

Rubber screens with such advantages are usually manufactured by punching rubber plates and molding methods.

However, since the former method results in large material loss and high cost, the latter method is superior in commercializing rubber screens.

However, even with the molding method, it is not possible to arbitrarily set the pitch of the holes (screen mesh) of the rubber screen to be manufactured.

Therefore, when the rubber screen has holes in the upper part of the support frame and the horizontal frame of the sieving device, there is a disadvantage that the processed material falls through the hole and wears and damages the support frame and the horizontal frame.

By the way, in order to change the pitch of the holes in the rubber screen, it is naturally necessary to change the mold.

However, since the positions of the support frame and horizontal frame in the sieve device are set arbitrarily, the mold must be unique for each sieve device, making the manufactured rubber screen extremely expensive. Become.

Furthermore, with a rubber screen made using a molding method,
As the holes become larger, the rubber inevitably becomes thicker, so the overall weight becomes very large and it is inconvenient to handle.

Furthermore, with such a rubber screen, the entire screen must be replaced in case of localized wear, which is not economically desirable.

This invention aims to eliminate the above-mentioned drawbacks,
The rubber screen is made into unit blocks so that the pitch of the holes in the rubber screen can be arbitrarily changed and handling is easy. A unit block for a rubber screen is formed by integrally forming a plurality of protrusions into a comb-teeth shape.

The unit blocks of this invention will be explained below according to the drawings.

Figure 1 shows unit block 1 for rubber screen of this invention.
An example of this is shown, which is composed of a plate-like part 2 made of a rubber-like elastic body and a plurality of protrusions 3.

The protruding portion 3 has a shape extending substantially perpendicularly from one side surface of the plate-like portion 2.

In the figure, reference numeral 4 denotes a through hole into which a connector for connecting each block 1 is inserted when a rubber screen is formed using a large number of blocks 1, as will be described later.

Note that a reinforcing material (canvas, steel cord, wire mesh, etc.) can be buried inside the unit block 1.

In the unit block 1 shown in FIG. 1, the width W of the protrusion 3
is uniform for all the protrusions, but in consideration of lateral connection, the width of the outer protrusions may be wider than that of the inner protrusions on both sides or only on one side.

Next, an example of forming a desired rubber screen by using a plurality of the above-described unit blocks 1 will be described with reference to FIG.

The sieving machine suitable for the illustrated example has a single horizontal frame and a single supporting frame.

First, the unit blocks 1 on any side are connected so that the protrusions 3 of the unit blocks 1 are oriented in the same direction, and the sieve holes 5 are formed.

However, a rubber plate 7 without holes is interposed at a portion corresponding to the position of the horizontal frame 6 of the sieving machine in the longitudinal direction.

In this way, the length of the rubber screen in the sieving direction is determined by connecting and extending a plurality of unit blocks 1 in the longitudinal direction to a length suitable for the sieving machine.

Regarding the width direction, a plurality of unit blocks 1 are arranged in parallel to suit the width of the sieving machine.

In this case, in the part corresponding to the position of the support frame 8,
A rubber plate 9 similar to the rubber plate 7 is interposed.

The unit blocks 1 can be joined together by various means depending on the amount of material to be processed.

For example, if the supply amount is small, it is sufficient to simply butt the unit blocks together, but it is also possible to shape the butt ends of unit block 1 as shown in Figures 3 and 4 and secure them with bolts, etc. You may.

If the amount of supply is large, the butting ends of the unit blocks 1 may be bonded with adhesive, but in order to better maintain the compatibility of the unit blocks 1, a bonding agent is provided at the butting ends as shown in Fig. 5. The convex portion and the concave portion may be fitted together, or the concave portions provided at the abutting ends may be connected by a separate connector 10 as shown in FIG.

Angle members 11 are brought into contact with both sides of the rubber screen 14, which is composed of a plurality of unit blocks 1 as described above, and the through holes 4 of each unit block 1 and the angle members 11 are provided in correspondence with the through holes 4. A connecting member such as a round bar 12 is passed through the hole 11' and fixed with a nut or the like.

In this way, the connection between each unit block is strengthened by the angle member 11.

Furthermore, if the holes 13 provided in the angle member 11 are used, attachment to the sieving machine becomes easy.

Alternatively, the unit blocks 1 may be connected by a connecting member without using the angle member 11 and directly fixed to the sieving machine.

In any case, the rubber screen 14 is constructed by combining the unit blocks 1 and interposing the rubber plates 7, 7 without holes at predetermined positions, so when it is attached to a sieving machine and the sieving work is carried out, the rubber screen 14 is constructed. , damage to the horizontal frame 6 and support frame 8 of the sieving machine can be effectively prevented.

In the illustrated example, the entire rubber screen is made up of unit blocks, but it is also possible to use unit blocks only for a part of a conventional rubber screen, especially the parts that are subject to severe wear, where the processed material falls from the chute, hopper, etc. good.

In addition, rubber screen 1 is added to the conventional rubber screen.
4 can also be placed and used.

As a unit block, it is also possible to use a unit block whose plate-like portion corresponds to the rubber plate 7, or a unit block in which sieve holes are appropriately formed in a plate-shape.

Next, unit blocks of this invention other than unit block 1 shown in FIG. 1 will be described.

The unit block 15 shown in FIG.
It extends from both sides of 6.

If a rubber screen is constructed by connecting a plurality of unit blocks 15 such that the opposing protrusions 17 abut against each other, a sieve hole having a length twice the length of the protrusions 17 is formed.

Furthermore, the unit blocks 1 shown in FIG. 1 can be effectively used at both ends in the longitudinal direction of the rubber screen constituted by the unit blocks 15.

Also, when considering the connection in the width direction of unit block 1,
It is preferable to use a unit block 1' having a shape in which the protrusion at one end of the unit block 1 is cut off as shown in FIG. 8.

This unit block 1' is particularly advantageous for obtaining sieve holes with equal rib widths when connected in the width direction.

In the various unit blocks 1.1' and 15 described above,
In addition to the function of connecting each unit block, the connecting member also has a reinforcing function as a rubber screen, and in addition to the round bar 11 mentioned above, various types such as a flat plate shape or a cross-sectional shape can be used. be.

Further, the connecting member may be made to communicate with the through hole of each unit block after connecting each unit block as described above, but as shown in FIGS. It may also be vulcanized and bonded so that it does.

In FIG. 9, the connecting members 12' are vulcanized and bonded into the plate-like part of the unit block 1 so that the connecting members 12' protrude from both ends of the plate-like part, respectively. A hole 4' into which a connecting member 12' provided in another adjacent unit block is inserted is bored.

In FIG. 10, a connecting member 12' projects from one end of the plate-shaped portion of the unit block 1, and a hole 4' into which the connecting member 12' of another unit block 1 is inserted is bored at the other end. There is.

Since the unit block for rubber screen of this invention described above consists of a plate-shaped part and a protruding part, it is easy to remove the burr when manufacturing the unit block, and the unit block can have holes of any shape by assembling the unit block. It is possible to form a rubber screen with a constant width of each rib.

Furthermore, since it is easy to interpose rubber plates without holes at predetermined locations when connecting the unit blocks, it is possible to prevent the horizontal frame and support frame of the sieving machine from being damaged by the processed material.

In particular, since the rubber screen is constructed by combining unit blocks, only the worn parts can be replaced, which is economically advantageous.

Additionally, in the case of heavy, large-diameter rubber screens,
By forming unit blocks, handling such as storage and installation becomes easier.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a rubber screen unit block of this invention, Fig. 2 is an explanatory diagram showing how the unit blocks of this invention are combined to form a rubber screen, and Figs. 3 to 6 are unit blocks, respectively. 7 to 10 are perspective views showing other examples of the rubber screen unit block of this invention, respectively. 1.1', 15...unit block, 2,16...
...Plate-shaped part, 3゜17...Protrusion part, 4.
...Through hole, 4'...hole, 5...
・Sieve hole, 6... Horizontal frame, 7, 9...
...Rubber plate, 8...Support frame, 10...
...Connection tool, 11...Angle member, 11
'...Hole, 12...Round bar, 12'...
...Connecting member, 13... Hole, 14...
...Rubber screen.

Claims (1)

[Scope of utility model registration request] A unit block for a rubber screen formed by integrally forming a plate-shaped part and a plurality of protrusions provided on at least one side surface of the plate-shaped part in a comb-teeth shape.