JPH06104222B2 - Vibrating screen - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen for a vibrating screen, and more particularly, a vibrating screen for selecting and screening ore, slag, powder, coke and other lump mixture having good screening efficiency. Screen.

[0002]

2. Description of the Related Art Conventionally, a vibrating screen has a horizontal line group in which a plurality of horizontal lines formed by coating a metal tensile member with a wear-resistant synthetic resin elastic material in parallel are arranged in parallel with each other. A configuration in which a vertical line group in which a plurality of vertical lines formed by covering the periphery of a stretched body with a wear-resistant synthetic resin elastic body is arranged in a cross shape is laminated and the intersecting portion is heat-fused. (See Japanese Patent Publication No. 57-33387).

Since the vibrating screen has an elastic body such as rubber or polyurethane formed on the surface of the tensile body, unlike the screen using a metal wire, it produces less impact noise and has a smooth surface. However, since the tensile body passes through the center of the abrasion-resistant synthetic resin elastic body, the thickness of the resin layer becomes thin and heating When performing fusion bonding or the like, there is a problem that the wall thickness is further reduced and wear resistance is reduced.

Therefore, in recent years, in the above configuration,
A structure in which a vertical line is formed of a coreless, abrasion-resistant synthetic resin elastic body is often used (Japanese Patent Publication No. 55-38).
186, and 56-44785). Further, in the case of this configuration, it is possible to maintain a certain thickness. However, in the vibrating screen having the above-described configuration, it is difficult to say that the secondary vibration due to the tension of the vertical core wire is not sufficient, and it is difficult to exhibit sufficient elasticity. The splashing action is not enough. Further, when the lower surface holding plate is arranged on the horizontal wire group side of the horizontal wire group fixing portion where the horizontal wire group is fixed to the metal hook plate, bolts and nuts are used, but a nut that appears on the metal hook plate is used. Since this is protected by a wear-resistant organic elastic sheet or coating, there is a problem that the portion is bulky and it is difficult to apply a flapping bar.

In view of such a problem, the present inventor has previously described that "a plurality of horizontal wires formed by coating a tensile body made of steel wire with a wear-resistant resin elastic body are arranged in parallel. In the arranged horizontal line group, the inside is made hollow, and the vertical line group in which a plurality of vertical lines made of a wear resistant resin elastic body in which a compressed gas is injected is arranged in parallel is arranged in a cross laminated manner. By heat-sealing the intersecting portion, exposing the tensile body at both ends of the horizontal line, covering the tensile body with a metal sleeve, and spot welding from above the metal sleeve, We proposed a screen for vibrating screens in which horizontal wires are fixed to metal hook plates.

According to this vibrating screen, since the vertical line is formed of the hollow abrasion-resistant resin elastic body and the compressed gas is injected into the hollow portion, the secondary vibration is further generated. It can be increased to prevent clogging and improve the sieving efficiency, and the horizontal wire is fixed to the hook metal by spot welding from above the metal sleeve. Can be fixed to the hook metal integrally with the metal sleeve without breaking, regardless of the number of steel wires forming the core material, the fixing can be performed even once by voltage adjustment, and the manufacturing time can be shortened, Moreover, there is an advantage that the automatic production can be easily performed.

[0007]

However, in the case of this vibrating screen, the following problems remain. That is, when spot welding is performed from above the metal sleeve, the metal sleeve is lifted and the holder of the spot welding is caught, which hinders automation. Since the side-by-side spot welds are independent, it is difficult to fix each horizontal line uniformly. In addition to the above-mentioned problems, it is required that secondary vibration be further generated and the sieving efficiency be improved in order to facilitate selective sieving of various powder and lump mixtures.

The present invention was devised based on such a point, and the purpose thereof is to further increase the secondary vibration in the vertical line in the screen for a vibrating screen. An object of the present invention is to provide a screen for a vibrating screen which can be fixed and whose horizontal line can be fixed uniformly.

[0009]

The vibrating screen of the present invention as a means for achieving the above object is obtained by coating a tensile member made of a metal wire with a wear resistant resin elastic body. A horizontal line group formed by arranging a plurality of horizontal lines in parallel has a hollow interior, and a plurality of vertical lines made of an abrasion-resistant resin elastic body in which a compressed gas is injected into the hollow part are arranged in parallel. The arranged vertical line groups are arranged in a cross-laminated manner, the tensile members at both ends of each horizontal line are exposed, and the parallel exposed bare tensile members are arranged on the back surface of the metal hook plate, and the metal hook plate is also provided. The bare tensile member is fixed to the metal hook by being sandwiched between the back surface and the metal plate and being welded from above the metal plate by spot welding or seam welding.

Another vibrating screen of the present invention is the above-mentioned invention, wherein the welded portion between the metal hook plate and the metal plate is filled with a solid agent such as epoxy resin, and a horizontal line group. A lower surface holding plate is disposed on the horizontal wire group side of the horizontal wire group fixing portion fixed to the metal hook plate, and the lower surface holding plate is screwed and fixed to the metal hook plate with a tamping screw.

Further, another vibrating screen of the present invention is a horizontal line group in which a plurality of horizontal lines formed by covering a tensile body made of a metal wire with a wear resistant resin elastic body are arranged in parallel. In addition, a vertical line group having a hollow inside and a plurality of vertical lines made of a wear-resistant resin elastic body in which a compressed gas is injected into the hollow portion is arranged in parallel, and the horizontal line groups are cross-stacked. And a group of vertical lines are heated and fused, and a portion which is not heat-welded is provided.

[0012]

In the vibrating screen of the present invention based on the above-mentioned constitution, each vertical line forming the vertical line group laminated on the horizontal line group has a hollow inside, and compressed gas is introduced into the hollow portion. Since it is formed of the injected wear-resistant resin elastic body, sufficient elasticity is imparted to the wear-resistant resin elastic body,
When the object to be sorted hits the vertical line, the secondary vibration is strongly generated and the repelling force is strong, so that the clogging is less likely to occur.

[0013] Tensile bodies are exposed at both ends of the horizontal line, and the tension bodies are covered with strip-shaped metal plates so that uniform residual heat can be applied to each of the tension bodies and the metal plate. Therefore, the horizontal wire can be fixed to the hook metal in a uniform state by spot welding from above the metal plate, the core material is not cut, and its production is easy, and the core material is formed. Regardless of the number of steel wires, it can be fixed once even by adjusting the voltage, the manufacturing time can be shortened, and the automatic manufacturing can be easily performed.

Furthermore, since the vertical line group and the horizontal line group have both a welded portion and a non-welded portion, different elastic forces can be imparted to the vertical line, resulting in a large change. Vibration can be generated, and it acts to improve the screening efficiency.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. Here, FIG. 1 to FIG.
FIG. 1 is a plan view, FIG. 2 is a side view, FIG. 3 is a rear view, FIG. 4 is a partially enlarged view of FIG. 2, FIG. 5 is a partially enlarged view of FIG. FIG. 2 is an enlarged cross-sectional view of an intersecting portion of vertical line groups and horizontal line groups in FIG. 1.

The screen for the vibrating screen of this embodiment is composed of ore,
A screen (mesh) that divides and mixes slag, stones, coke, and other lump mixture into screening screens, and makes them to an external size that can be installed inside the frame of a vibrating screen machine. Used screen (net)
In summary, like the conventional rubber screen, the horizontal line group 1 and the vertical line group 2 are stacked and arranged, and the intersecting portions 3, 3 ... . Here, the intersecting portions 3, 3, ... Form a heat-welded portion and a non-heat-welded portion.

In the horizontal wire group 1, a plurality of horizontal wires 6, 6, ... Formed by using a tensile member as a core material 4 and surrounding the core material 4 with a wear resistant resin elastic body 5 are arranged in parallel. The vertical line group 2 has a hollow interior,
In addition, a plurality of vertical lines 9 made of a wear-resistant resin elastic body 8 in which compressed gas (high pressure gas) is injected into the hollow portion 7 are arranged in parallel. And the intersection 3,
In 3 ..., a portion which is not heat-welded is injected with high-pressure gas to be in an expanded state so that the vibration force can be improved.

Here, the horizontal lines 6 and the vertical lines 9 are formed in a cross section such as a circular shape, an elliptical shape, a semicircular shape, and a trapezoidal shape, and the abrasion-resistant resin elastic bodies 5 and 8 forming the outer periphery thereof are It is made of an elastic material such as polyurethane rubber, natural rubber, or synthetic rubber. Further, as the core material 4, a wire steel wire or a metal wire formed by twisting a plurality of bundled metal wires such as the wire steel wire is used.

The horizontal lines 6, 6 ... Of the horizontal line group 1 are fixed to the hook metal 10 at both ends. Specifically, the tensile body, which is the core material 4 of the horizontal lines 6, 6, ... Is barely exposed, and the bare exposed portion 11 is covered with a strip-shaped thin metal plate 14 to remove the bare exposed portion 11. The hook metal 10 is fixed to the back surface of the hook metal 10 by welding from the metal plate 14 by spot welding or seam welding. Here, the metal plate 14 is usually a weldable metal such as iron, and the bare core material 4,
4 is a plate body having a width that covers about a half from the tip end portion, and the bare metal portion 11 is sandwiched between the hook metal 10 and the metal plate 10. Then, the metal plate 14 is welded by spot welding or seam welding. In addition, a solid agent such as epoxy resin is filled in the welding site between the hook metal 10 and the metal plate 14. This reduces the transmission of vibration to the welded portion and prevents the welded core wire 4 from being broken. Also, epoxy resin is hook metal 1
By adhering to the tensile body up to the tip of 0, the tensile body is supported more firmly.

The hook metal 10 is sandwiched between an upper surface sandwiching plate 15 made of a urethane sheet and an underside sandwiching plate 12 made of a restraining plate arranged below the hook metal 10, and each of the horizontal line groups 1 is sandwiched. The horizontal lines 6, 6, ... Between the hook metal 10 and the lower holding plate 12, the cross-shaped tampon screw 1
It is fixed by screwing in 3. By this screwing and fixing, since the bulkiness can be eliminated when the flapping bar is hooked on the hook metal 10 and tightened on the frame, the hooking can be easily performed.

The core material 4 of the horizontal wire 6 is 1/3 of the horizontal wire 6.
With a thickness of about a degree, it is configured to be able to give strength and tension,
The abrasion resistant resin elastic body 5 formed on the outer surface of the elastic body 5 is tightly integrated. Here, if necessary, a resin made of a material having higher elasticity than that of the abrasion-resistant resin elastic body 5 is interposed between the core material 4 and the abrasion-resistant resin elastic body 5 to form a multi-layer structure. An elastic body is formed.

The vertical lines 9, 9 ... Forming the vertical line group 2 are
The hollow portion 7 is arranged in the flow direction of the objects to be sorted, and a hollow portion 7 is formed therein, and the hollow portion 7 is formed as a hole having a diameter of about 1/2 to 1/10 of the diameter a of the vertical line 9. ing. Compressed air (high-pressure gas) is enclosed in the hollow portion 7 so that the abrasion-resistant resin elastic body 8 itself is given more elasticity. Here, the internal pressure of the high-pressure gas (compressed gas) to be filled is set to a pressure at which tension can be maintained, and the intersecting portions 3, 3, ... By changing the elastic force, the rebounding force of the objects to be sorted is strengthened.

The vibrating screen of this embodiment is used by mounting it on the frame of the vibrating screen machine via the hook metal 10. That is, the horizontal lines 6, 6, ... And the vertical lines 9, 9, ...
-Acts as if sieved by the sieve formed by and. Here, the objects to be sorted are bounced back and sorted by the primary vibration by the vibrating screen machine, and the secondary vibration is caused by the elasticity of the horizontal lines 6, 6 ..., The vertical lines 9, 9. Is sufficiently applied, so that clogging does not occur and the sieving efficiency is not deteriorated, and thus sorting can be performed.

Further, the vertical lines 9, 9 ... Forming the vertical line group 2
• indicates that the hollow part 7 is filled with compressed air and the vertical lines 6, 6
.. Since different elastic forces are used in
The primary vibration by the vibrating screen machine is transmitted to the hollow portion 7 through the core material 4 of the horizontal lines 6, 6 ... and the abrasion-resistant resin elastic body 5, and the secondary vibration occurs. In addition, the air in the hollow portion 7 causes internal vibrations, and different internal vibrations occur between the welded portion and the non-welded portion of the intersecting portion. It can be generated and acts to improve its sieving efficiency.

Further, since the vertical wire (core wire) is integrally covered with a strip-shaped metal plate and spot welded from above the metal plate, the vertical wire is fixed to the hook metal 10. Since uniform residual heat can be applied, the welded state is improved, and the core portion is covered with the strip plate, which facilitates the production.

Further, the screen for the vibrating screen of this embodiment is
Since the tensile body is exposed at both ends of the horizontal line and the tensile body is covered with a strip-shaped metal plate, it is possible to give uniform residual heat to each of the tensile body and the metal plate. By welding such as spot welding or seam welding on the metal plate, the horizontal wire can be fixed to the hook metal in a uniform state, the core material does not break, and the production thereof can be easily performed. Regardless of the number of steel wires forming the wire, it can be fixed even once by voltage adjustment, the manufacturing time can be shortened, and the automatic manufacturing can be easily performed.

It should be noted that the present invention is not limited to the above-mentioned embodiments, but includes configurations that can be modified and implemented within the scope of the present invention. Incidentally, a compressed air supply unit may be provided in the hollow portion of the vertical line so that the amount and pressure of the compressed air can be changed (continuously, discontinuously, intermittently), and in this case, Alternatively, the sifting work may be performed simultaneously. Furthermore, the elasticity may be changed by forming the hollow portion as an internal shape, providing a groove in the lengthwise direction or the circumferential direction, or forming a corrugated groove. Further, in the above-described embodiments, the compressed gas is used as the compressed gas, but it is natural that nitrogen or other gas may be used. Naturally, all the intersecting portions of the vertical line groups and the horizontal line groups may be welded.

[0028]

As is apparent from the above description, according to the vibrating screen of the present invention, each vertical line forming the vertical line group has a hollow inside and a compressed gas is injected into the hollow portion. Since it is made of a wear-resistant resin elastic body, it is possible to further increase the occurrence of secondary vibration and prevent the occurrence of clogging.
This has the effect of improving the sieving efficiency.

According to the vibrating screen of the present invention, the tensile body is exposed at both ends of the horizontal line, and the tensile body is covered with a strip-shaped metal plate. Since the uniform residual heat can be applied to the metal plate, the horizontal wire can be fixed to the hook metal in a uniform state by welding such as spot welding or seam welding on the metal plate, and the core material is cut. Without the need for easy production, and regardless of the number of steel wires forming the core material, voltage adjustment can be used to fix them once, shortening the production time, and automatically producing them. It has an effect that can be easily performed.

Further, according to another vibrating screen of the present invention, since it has both a portion welded to the intersecting portion of the vertical line group and a horizontal line group and a portion not welded to it, the vertical line Different elastic forces can be applied, large vibrations with further changes can be generated, and the sieving efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a plan view showing an embodiment of the present invention.

FIG. 2 is a side view.

FIG. 3 is a rear view.

FIG. 4 is a partially enlarged view of FIG.

5 is a partially enlarged view of FIG.

6 is an enlarged cross-sectional view of an intersecting portion of a vertical line group and a horizontal line group in FIG.

FIG. 7 is a side view showing a state in which a flapping bar is attached.

[Explanation of symbols]

1 ... Horizontal line group, 2 ... Vertical line group, 3 ... Intersection, 4
... core material, 5 ... abrasion-resistant resin elastic body, 6 ... horizontal wire, 7 ... hollow portion, 8 ... abrasion-resistant resin elastic body, 9
・ ・ ・ Vertical wire, 10 ・ ・ ・ hook metal, 11 ・ ・ ・ bare part, 12 ・ ・ ・ bottom clamping plate, 13 ・ ・ ・ tamping screw, 14 ・ ・ ・ metal plate, 15 ・ ・ ・ top clamping Board

Claims (4)

[Claims] 1. A horizontal wire group in which a plurality of horizontal wires formed by covering a tensile body made of a metal wire with a wear-resistant resin elastic body is arranged in parallel to form a hollow inside, and the hollow A vertical line group in which a plurality of vertical lines made of a wear-resistant resin elastic body in which a compressed gas is injected is arranged in parallel, is cross-stacked and arranged.
The tensile bodies at both ends of each horizontal line are exposed, and the parallel bare extension tensile bodies are arranged on the back surface of the metal hook plate, and sandwiched between the metal hook plate back surface and the metal plate, and A screen for a vibrating screen characterized in that the bare tensile member is fixed to the metal hook by welding by spot welding or seam welding on a metal plate. 2. The vibrating screen according to claim 1, wherein a welded portion between the metal hook plate and the metal plate is filled with a solid agent such as epoxy resin. 3. A lower surface holding plate is arranged on the horizontal wire group side of a horizontal wire group fixing portion in which the horizontal wire group is fixed to a metal hook plate, and the lower surface holding plate is screwed and fixed to the metal hook plate with a tamping screw. Item 2. The vibrating screen screen according to Item 1. 4. A horizontal wire group in which a plurality of horizontal wires formed by covering a tensile body made of a metal wire with a wear-resistant resin elastic body is arranged in parallel to form a hollow inside, and the hollow A vertical line group in which a plurality of vertical lines made of a wear-resistant resin elastic body in which a compressed gas is injected is arranged in parallel, is cross-stacked and arranged.
A portion where the intersecting portion of the horizontal line group and the vertical line group is heat-sealed,
A screen for a vibrating screen, which is provided with a portion which is not heat-welded.