JP2001199519A - Belt conveyer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a belt conveyer device having a function concentrating conveyed articles with no deteriorating apprehension of abrasion or the like by concentrating the conveyed articles on a conveyer belt to the center in a contact-less condition. SOLUTION: A protrusion 7 increasing a height in a radial direction toward the end part in a tapered shape is provided in the end part of a carrier roller 5 supporting a conveyer belt 1 provided in the downstream of a scraper 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt conveyor device provided with a plate-shaped scraper obliquely crossing over a conveyor belt, and using the scraper to sort articles conveyed on the conveyor belt to the side. The present invention relates to a technique for preventing a conveyed material that has passed through a belt from dropping from a side of a belt.

[0002]

2. Description of the Related Art Conventionally, in a belt conveyer for conveying conveyed objects such as sand, powder, ore, etc., to convey the conveyed objects to respective portions on the side of the conveyor belt, as shown in FIG. A scraper 3 having a plate shape crossing the upper side diagonally is provided, and the conveyed material M conveyed on the conveyor belt 1 is guided to the side by the scraper 3 and dropped to a carry-out port 2 provided on the side of the belt. I have. Reference numeral 4 denotes a skirt rubber for guiding a conveyed object.

In such a conveyor device, the lower surface of the scraper 3 is gradually worn because it comes into contact with the conveyed material M, a gap is formed, and a part M1 of the conveyed material such as sand and powder passes through the gap. It is expanded to the side of the conveyor belt 1 and falls from the side end (see FIG. 10). For this reason, problems such as waste due to scattering of the transported material M and cleaning thereof are caused.

Japanese Unexamined Patent Application Publication No. Hei 8-2644 discloses a conveyor roller having a projection provided on a cross section perpendicular to the rotation axis, but prevents the accumulation of powder particles having a small specific gravity due to an upward gradient. It is not a technique that can prevent the fall from the side.

[0005]

According to the present invention, the conveyed articles on the conveyor belt are not contacted and concentrated as in the case of skirt rubber, but are concentrated in a non-contact manner at the center, and there is no fear of deterioration such as wear. It is an object of the present invention to provide a belt conveyor device having a function of concentrating a conveyed object.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a belt conveyor device provided with a plate-shaped scraper obliquely crossing over a conveyor belt, and using the scraper to sort articles conveyed on the conveyor belt to the side. A plate-like projection is provided at an end of a carrier roller that supports a conveyor belt rotatably provided downstream and that increases in height in a radial direction toward the end in a tapered shape.

Further, the present invention provides a belt conveyor device in which a plate-shaped scraper is provided which crosses the conveyor belt obliquely and the conveyed material on the conveyor belt is laterally distributed by the scraper. , A plurality of carrier rollers supporting the conveyor belt provided in parallel with each other, and a plate-like projection protruding in a radial direction is provided on a roller at an end thereof.

The number and the height of the radial projections provided on the carrier roller are selected so that the belt can be appropriately vibrated with respect to the belt speed and the conveyed material.

According to the present invention, with the rotation of the carrier roller, vibration is applied in a pulse-like manner to the side edge of the conveyor belt by the plate-like projection provided at the end thereof. Then, the conveyed material on the belt is concentrated on the central portion by the vibration, and the falling off from the belt side end is prevented. Therefore, it is possible to omit the skirt rubber conventionally provided on the side of the belt for preventing the spill.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a conveyor belt 1
Flows from the upper right to the lower left of the figure as indicated by the arrow, and the conveyed material is guided laterally by a scraper 3 provided obliquely across the belt 1 and is introduced into the carry-out port 2. . Downstream of the scraper 3, skirt rubbers 4 and 4 are provided on both sides of the belt 1 to prevent the conveyed material that has passed through the scraper 3 from dropping. Further, a carrier roller 5 having a plate-shaped protrusion 7 described later is rotatably provided behind the belt 1 so that the belt 1 is supported from below, and is inverted by a header roller 6.

As shown in FIGS. 2 and 3, the carrier roller 5 is provided with a plurality of (four in the illustrated example) plate-like projections 7 at both ends in the axial direction. It is formed in a tapered shape (for example, height h = 10 to 30 mm) whose height increases in the radial direction at an angle θ (for example, angle θ = about 20 °).

Therefore, according to the present invention, the protrusion 7 provided on the carrier roller 5 applies a pulse-like vibration to the side edge of the conveyor belt 1, and the conveyed material M on the belt 1 is gradually increased by the vibration. Since it is moved to the center, it is prevented from falling from the side end.

FIGS. 4 and 5 show an embodiment in which a plurality of carrier rollers are arranged in parallel in a V-shape or a U-shape. In the embodiment of FIG. 4, two carrier rollers 5 are provided.
A, 5A are arranged in a V-shape, and radial projections 7 are provided.
A is provided over the entire length of the roller. In the embodiment of FIG. 5, three carrier rollers 5C, 5B, 5C
Are arranged in a U-shape, and rollers 5C, 5C at both ends are provided with radial projections 7C, 7C.

As shown in FIG. 4 or FIG. 5, when a plurality of carrier rollers 5A (5C) are used, if the protrusions 7A (7C) are provided on the end rollers 5A (5C), the belt 1 can be used. The side edges are vibrated, and the transported object M is concentrated at the center.

Next, FIGS. 6 to 8 show another embodiment of the carrier rollers (5D to 5F). FIG.
Shows an embodiment in which the protrusion 7 is provided only on one end of the carrier roller 5D so that the conveyed material on the belt is moved in only one direction. Can respond to. Carrier roller 5 of FIG.
E is provided with an elastic lining L on the outer periphery of the roller, and can enhance the grip between the roller 5E and the belt 1. The carrier roller 5F in FIG. 8 has a protrusion 7F formed of an elastic body, and corresponds to a case where the belt 1 is easily damaged. The type of the elastic body used in the embodiment shown in FIG. 7 or FIG. 8 is selected depending on use conditions such as chemical resistance and heat resistance.

[0016]

The effects of the present invention are listed below. . (1) Vibration is applied to the side edge of the conveyor belt, and the conveyed material on the belt is concentrated at the center, so that it can be prevented from falling off from the belt side end. (2) It can be easily applied to a general-purpose belt conveyor. (3) The skirt rubber conventionally provided on the side of the belt can be omitted. (4) Since it is not in contact with the conveyed object, there is no fear of wear deterioration.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a downstream side of an embodiment of a belt conveyor device of the present invention.

FIG. 2 is a front view showing an embodiment of a carrier roller according to the present invention.

FIG. 3 is a side view of FIG. 2;

FIG. 4 is a front view showing an embodiment in which carrier rollers are arranged in a V shape.

FIG. 5 is a front view showing an embodiment in which carrier rollers are arranged in a U-shape.

FIG. 6 is a front view showing an embodiment of a carrier roller provided with a protrusion on one side.

FIG. 7 is a front view showing an embodiment in which a carrier roller is lined with an elastic body.

FIG. 8 is a front view showing an embodiment of a carrier roller in which protrusions are formed of an elastic body.

FIG. 9 is a plan view illustrating a conventional belt conveyor device.

FIG. 10 is a sectional view taken along line AA of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Conveyor belt 2 ... Unloading port 3 ... Scraper 4 ... Skirt rubber 5, 5A-F ... Carrier roller 7, 7A-F ... Projection part M ... Conveyed object

Claims (2)

[Claims] In a belt conveyor device provided with a plate-shaped scraper obliquely crossing over a conveyor belt and sorting the conveyed material on the conveyor belt to the side by the scraper, a conveyor rotatably provided downstream of the scraper. A belt conveyor device, wherein a plate-shaped projection is provided at an end of a carrier roller for supporting a belt, the height of which is increased in a radial direction toward the end in a tapered shape. 2. A belt conveyor device provided with a plate-shaped scraper obliquely traversing on a conveyor belt and diverting a conveyed material on the conveyor belt to the side by the scraper, wherein the conveyor is rotatably provided downstream of the scraper. A belt conveyor device comprising a plurality of carrier rollers for supporting a belt arranged side by side, and a roller at an end thereof having a plate-like projection protruding in a radial direction.