JPS6222881B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an unloading device for a skew belt conveyor.

A belt conveyor device comprising: an endless belt of a belt conveyor that is inclined at a part of its length; a guide side plate is provided at the inclined part to support the cargo together with the belt; and discharge gates are provided at required locations on the guide side plate; The so-called diagonal belt conveyor discharges the load being transported to the desired unloading position by opening the discharge gate at that position and allowing the load to slide down under its own weight, and the discharge device itself is relatively simple. Due to its simple structure, it has been widely used in recent years depending on the nature of the load. However, in such a diagonal belt conveyor, when the discharge gate is opened, if the friction coefficient of the load against the belt is large, the load may not slide off, and unless it is assisted manually, it may not move to the desired unloading position. There was a problem that I couldn't unload my luggage. This is because the conveyance force for the load being conveyed is applied exclusively from the inclined belt, and the load simply slides on the guide side plate that supports a part of the load, so the angle of inclination of the inclined belt is large. This is because if it is too large, the conveying force will be greatly reduced, and there is a limit to how much it can be increased.

The unloading device for a diagonal belt conveyor of this invention includes:
This was proposed with the aim of solving the above problems and ensuring reliable unloading on the oblique belt conveyor. The present invention is characterized in that a roller having a convex portion on the surface is provided so as to be able to selectively contact the back surface of the belt.

The present invention will be explained below based on embodiments shown in the drawings. In FIGS. 1 and 2, 1 is an endless belt of the oblique belt conveyor, 1a is the belt at the inclined part on the side where the cargo M is conveyed, and 1b is the endless belt of the oblique belt conveyor.
indicates the belt on the return side. This endless belt 1 is wound around pulleys at both ends (not shown) and rollers provided in the middle part, so that a part 1a thereof runs with an inclination, and is circulated by a motor or other driving device (not shown). Driven. 2
is a fixed guide side plate provided along the longitudinal direction of the lower side of the inclined belt 1a, and is attached to a fixed frame etc. (not shown) so as to be approximately perpendicular to the inclined part of the belt 1a. be. The surface of this guide side plate 2 is finished sufficiently smooth together with the surface of the discharge gate 5 described later, and the inclined belt 1a
When the load M supports part of the load of the load M and moves forward, the load M is supported by the guide side plate 2 for the other part of the load and is conveyed by sliding on the guide side plate 2.

A portion of the guide side plate 2 in the longitudinal direction is formed discontinuously, and the opening portion thereof forms a discharge port for the cargo M, that is, an unloading position 3. The unloading positions 3 can be provided at arbitrary positions along the longitudinal direction of the guide side plate 2, and the number of unloading positions 3 can be set freely. 4 indicates a chute provided below the unloading position 3. An openable/closable discharge gate 5 is provided at the unloading position 3, that is, at the opening, in order to open when unloading the load M and close it when allowing the load M to pass through without being lowered. In FIG. 1, the left discharge gate 5 is in the unloading state, and the right discharge gate 5
indicates a state in which the cargo is allowed to pass through the unloading position 3. The opening/closing operation of the discharge gate 5 is performed, for example, by a hydraulic piston cylinder device 6 as shown in FIG. In Figure 2, 7
1 is a pressure source for supplying pressure fluid such as compressed air to the piston cylinder device 6; 8 and 9 are pipe lines connecting the piston cylinder device 6 and the pressure source 7;
0 indicates a control solenoid valve interposed between the pipes 8 and 9, respectively. The structure of the skew belt conveyor described above is conventionally well known.

In the present invention, in the vicinity of each of the above-mentioned unloading positions 3, a roller 11 having a convex portion 11a on the surface is attached to the back surface of the belt 1a running at an angle so that it can come into contact when necessary. . This roller 1
1 is supported so as to be freely rotatable around an axis 1, and in the illustrated example, one end is supported by a fixed member 12 such as a frame, and the other end is supported by a hydraulic piston cylinder device or other device. It is rotatably mounted on a shaft 14 which is movably supported by an actuating device 13. As shown in FIGS. 2 and 3, the actuating device, namely the piston cylinder device 1
3 has one end pivotally connected to the other end of the roller shaft 14 and the other end pivotally connected to a fixed member 15 such as a frame. Roller axis 1 due to operation
4, and can selectively come into contact with or separate from the back surface of the inclined belt 1a. The actuating device 13 for bringing the roller 11 into contact with or separating from the inclined belt 1a is not limited to the piston-cylinder device described above, and any other actuating means may be employed. In addition, the roller 11
In the illustrated example, the inclined belt 1 is
Although the belt 1a is brought into contact with the belt 1a, it is of course possible to bring the belt 1a into contact with or away from the belt 1a by parallel movement. The surface of the roller 11, that is, the circumferential surface 11b, is provided with a plurality of protrusions 11a along the axis l as shown in FIGS. 2 and 3 and other arbitrary shapes. When the roller 11 is in contact with the inclined belt 1a, the roller 11 is positioned so that its peripheral surface 11b is in contact with the back surface of the inclined belt 1a. In FIG. 3, an inclined belt 1 is driven to run in the direction of arrow P.
When the roller 11 is brought into contact with the point a, the roller 11 rotates in the direction of the arrow Q, and when the convex portion 11a contacts the belt 1a, the belt 1a is moved by the elasticity of the belt 1a by the height h of the convex portion 11a. The inclined belt 1a is partially lifted against the contraction force, thereby imparting vibration to the inclined belt 1a. The setting position of the roller 11 with respect to the unloading position 3 is as shown in FIG.
Although it is preferable to place the belt 1a slightly forward of the unloading position 3, the position is not limited to the front and may be any position near the unloading position 3 as long as an appropriate vibration can be applied to the belt 1a at the unloading position 3. Furthermore, two or more rollers 11 can be arranged for one unloading position 3.

In the illustrated example, the above-mentioned pressure fluid supply source 7 (pressure source) is shared by the piston cylinder device 9 for opening and closing the discharge gate 5 and the piston cylinder device 13 for swinging the roller 11. Therefore, the above-described solenoid valve 10 and the piston-cylinder device 13 for roller swing operation are connected through another conduit 9a. According to such a pipe system, when a desired discharge gate 5 is opened, the corresponding roller 11 can be simultaneously brought into contact with the inclined belt 1a at a predetermined position to vibrate that part, and the discharge gate 5 When the rollers 11 are closed, the corresponding rollers 11 can be separated from the inclined belt 1a, so the overall structure can be simplified, and the opening operation of the discharge gate 5 and the vibration action of the inclined belt 1a can be easily synchronized. It is possible and convenient.

According to the unloading device for a diagonal belt conveyor of the present invention described above, at the unloading position 3 where the load M is to be unloaded, the belt 1a has a corresponding roller 11 having a convex portion 11a on the surface inclined. Since the belt 1a can be brought into contact with the back side only when necessary and given appropriate vibration to the belt 1a, even if the load M that should slide down under its own weight when the discharge gate 5 is opened does not stop on the inclined belt 1a due to excessive friction. , the friction is reduced by the vibration applied to the belt 1a, and the load M is reliably discharged at the desired unloading position 3, and the convex portion 11
Since the roller 11 having the height a is brought into contact only when unloading, the load on the belt 1 caused by the contact of the convex portion 11a is kept to a minimum, and the life of the belt 1 is not significantly affected. It has the following effects. Furthermore, the unloading device of the present invention has the advantage that it can be easily installed on existing oblique belt conveyors.

[Brief explanation of the drawing]

Fig. 1 is a plan view showing an embodiment of the unloading device for a diagonal belt conveyor according to the present invention, Fig. 2 is an enlarged partial cross-sectional view taken along the line of Fig. 1, and Fig. 3 shows the main parts of the invention. FIG. 3 is an enlarged side view of a roller having a convex portion. 1...Endless belt, 1a...Belt running at an angle, 3...Unloading position, 11...Roller, 1
1a...Protrusion of roller, M...Luggage.

Claims (1)

[Claims] 1 In the vicinity of the unloading position 3 of the baggage M, the belt 1a running at an angle on the belt conveyor
An unloading device for a diagonal belt conveyor, characterized in that a roller 11 having a convex portion 11a on its surface is provided so as to be able to selectively come into contact with the back surface of the belt conveyor.