JP2527772Y2 - Belts for steep and vertical conveyors - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steeply inclined vertical conveyor for transporting loose articles between double conveyor belts, and more particularly to a double conveyor which is curved at a predetermined curvature in the direction of transport of loose articles. The present invention relates to a steeply inclined / vertical conveyor belt capable of setting a small radius of curvature.

[0002]

2. Description of the Related Art In general, in a conveyor for transporting loose objects, in order to save space, a steeply inclined vertical conveyor which transports loose objects between double conveyors stacked on each other is known. I have. This type of conveyor employs, for example, a configuration as shown in FIG.

The illustrated example shows a conveyor which vertically conveys a conveyed article. The conveyor 1 has a pair of endless annular conveying belts 2 and 3 which are vertically overlapped with each other. Numeral 3 is turned right and left via a pulley 4. These conveyor belts 2,
3 is an upper belt 2a and a lower belt 3 which are on the pulling side with respect to each other.
a are opposed to each other, and the loose material A is transported between them.

That is, the upper belt 2a and the lower belt 3a are configured to convey the bulk material A vertically and to be run with a predetermined curvature in order to change the conveying direction from the horizontal direction to the vertical direction. . A short-axis end roller 6 that guides the two belts 2a and 3a in such a manner that both ends in the width direction of the belts 2a and 3a are superposed on each other is disposed in the vertical portion 5 where the belts 2a and 3a are vertically conveyed. , And a long-axis roller 8 for guiding the roller is arranged. As shown in FIG. 5, in the curvature section 7, a roller 8a for guiding the running of the upper belt 2a in the center in the width direction, and both ends in the width direction are guided in the conveying direction, and both ends are connected to the lower belt 3a side. And two side rollers 8a and 8b that are bent and bent at predetermined intervals along the transport direction.

As described above, in the curvature section 7, the upper belt 2a travels in a state of being bent and deformed in the width direction, and the loose objects A are transported while being securely held.

[0006]

However, since the upper conveyor belt 2a of the curvature section 7 is curved in the width direction and deformed in this way, the center in the width direction and both ends in the width direction of the belt 2a are different from each other. It will be curved with curvature radii R1, R2. That is, as shown in FIG. 5, both ends in the width direction are curved radially outward with a curvature radius R2 longer than the curvature radius R1 with respect to the curvature radius R1 at the center in the width direction.
For this reason, both ends in the width direction of the conveyor belt 2a extend from the central portion, and if the tensile stiffness in the width direction is made the same, the tensile force at the both ends in the width direction of the conveyor belt 2a in the curvature portion 7 increases, A phenomenon occurs in which the tensile rigidity becomes non-uniform.

Therefore, conventionally, the curvature of the entire curvature portion 7 is set in accordance with the curvature radii R2 at both ends in the width direction, and there is a problem that the curvature radius of the curvature portion 7 must be increased.

The present invention has been made to effectively solve the above problems.

The present invention makes it possible to make the tensile rigidity of a belt conveyed curved in the width direction uniform when it bends in the conveyance direction, and to increase the radius of curvature of the curvature part curved in the conveyance direction. It is an object of the present invention to provide a belt for steeply inclined and vertical conveyors which can be used.

[0010]

SUMMARY OF THE INVENTION A double conveyor belt for transporting a loose object in between is curved at a predetermined curvature in the direction of transport of the loose objects, and the transport belt of the curvature portion is curved in the width direction to travel. in the inclined and vertical conveyor, stage than the tensile stiffness widthwise end portion in the width direction central portion to the conveyor belt
Conveying curved in the width direction by providing a core that increases in floor
The belt has a uniform tensile rigidity .

[0011]

As described above, by increasing the tensile rigidity at the central portion in the width direction of the transport belt and gradually decreasing the tensile rigidity at both ends in the width direction, the width and the predetermined curvature in the transport direction are obtained. Uniform tensile stiffness of the conveying belt curved in the direction can be achieved.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

As shown in FIG. 1, in the case of a steeply inclined / vertical conveyor 11, a conveyor belt 1 which transports loose objects A therebetween is provided.
2 and 13 are provided, and these transport belts 12 and 13 are provided.
Reference numeral 13 denotes a double conveyor belt which runs with the loose material A interposed therebetween with the widthwise ends overlapped with each other.

The transport belts 12 and 13 are curved at a predetermined curvature in the transport direction so as to change the transport direction of the loose material A and transport the bulk material A vertically or steeply. Are arranged at predetermined intervals along the transport direction. In the illustrated example, three rollers 15a to 15c are arranged in the width direction on the upper conveyor belt 12, and the center roller 15a guides the running in the center in the width direction, and is located on both sides of the center roller 15a. The arranged rollers 15b and 15c guide the running of the both ends in the width direction to hold the loose material A, and the both ends are turned back toward the opposing lower conveying belt 13 to be bent and deformed. I have. Therefore, in order to deform the upper conveying belt 12 by bending it in the width direction, the radius of curvature R2 at both ends in the width direction is longer than the radius of curvature R1 at the center in the width direction.

In the illustrated example, the upper conveying belt 12 shows the curvature portion 7 running inside, and the upper conveying belt 12 is curved in the width direction by rollers 15b and 15c. . Therefore, although not shown, in the curvature portion where the lower transport belt 13 travels inside, both ends in the width direction of the lower transport belt 13 are
At b and 15c, the sheet is folded back toward the upper conveyor belt 12 to be curved.

In particular, these conveyor belts 12 and 13 are provided with a core 16 for increasing the tensile stiffness at the center in the width direction at both ends in the width direction, and as shown in FIG. , 13 are constituted by a large number of steel cords 17 as a reinforcing material. The steel cords 17 are densely arranged at the center in the width direction in the rubber material layer 18 forming the conveying surface, and are embedded at predetermined intervals so as to be gradually arranged coarsely over both ends in the width direction. I have.

Accordingly, the steel cords 17 are densely arranged in the widthwise central portion of the upper conveying belt 12 which is curved in the widthwise direction, so that the tensile rigidity is increased. Since the steel cords 17 are coarsely arranged on both sides, the tensile rigidity is gradually reduced as compared with the central portion. For this reason, even if the transport belt 12 runs curved in the transport direction, the tensile rigidity in the width direction is made uniform, and the radius of curvature of the curvature portion 14 can be reduced.

FIG. 3 shows another embodiment. As in the above-described embodiment, the transport belts 12 and 13 are provided with a core 16.
Is provided. The core 16 is composed of canvases 19a to 19c as reinforcing layers superimposed on three layers. Each of the canvases 19a to 19c has a width different from each other. These canvases 19a to 19c are embedded in the rubber material layer 18 so as to be overlapped with each other in the thickness direction thereof, and the widthwise central portions of the transport belts 12 and 13 are arranged. Are laminated so that the lamination width is gradually reduced from both sides in the width direction. Therefore, the tensile stiffness at the center in the width direction increases stepwise than the tensile stiffness at both ends in the width direction, and the tensile stiffness can be made uniform when the transport belts 12 and 13 bend in the transport direction.

Thus, in the present invention, the transport belt 1
The tensile stiffness at both ends in the width direction is increased from the center in the width direction.
Since the width is gradually reduced, it is possible to make the tensile rigidity of the transport belts 12 and 13 having a predetermined curvature in the transport direction and curved in the width direction uniform, and to reduce the radius of curvature of the curvature portion 14. it can. Therefore, the installation space of the steeply inclined vertical conveyor 11 can be reduced.

[0020]

According Effect of invention] In short the present invention enables the tensile rigidity of the uniformity of the conveyor belt to be curved conveyance and width direction a predetermined curvature in the direction, it is possible to reduce the curvature radius of the curvature portion.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a conveyor according to the present invention.

FIG. 2 is a sectional view showing a belt.

FIG. 3 is a sectional view showing another embodiment of the belt.

FIG. 4 is a schematic diagram showing a conveyor.

FIG. 5 is a perspective view showing a conventional conveyor.

[Explanation of symbols]

 A loose objects 11 conveyors 12, 13 double conveyor belt 14 curvature section 16 core

Claims (1)

(57) [Scope of request for utility model registration] 1. A steeply / vertically-conveying belt in which a double conveyor belt for transporting a loose object therebetween is curved at a predetermined curvature in the direction in which the loose objects are conveyed, and the conveying belt of the curvature portion is curved and run in the width direction. In the conveyor, the transport belt is provided with a core body that gradually increases the tensile rigidity at the center in the width direction from the end portion in the width direction, and the tensile rigidity of the transport belt curved in the width direction is provided.
A belt for steeply inclined and vertical conveyors, characterized by uniformity .