JPS636088Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a conveyor belt, particularly a conveyor belt of a cylindrical conveyor.

As a conventional conveyor belt of this type, there is one shown in FIG. 1, for example.

This has a plurality of protrusions 2 whose front shape is approximately trapezoidal in the center of the conveying surface of the belt 1, which is 1/1/2 the width of the belt.
They are arranged in a bird-like pattern over an area of 2 to 2/3.

Such a conveyor belt generally includes a supply chute 3 and a discharge chute 4, as shown in FIG.
It is used by being stretched between the tail pulley 5 and the drive pulley 6.

However, the conventional conveyor belt, as shown in the cross-sectional view in FIG. A state in which the conveyance capacity is exhibited but the conveyance does not form a perfect cylindrical shape, for example, as shown in FIGS. 4, the upper ends of each protrusion 2 are separated from each other, so when conveying with a lift, there is a problem that the transported object falls from the gap at the upper end of the projection. This is more noticeable when the material is powder or granules and the frictional force between them is small.

As a result, the angle formed between the conveying surface of the conveyor belt and the horizontal plane (hereinafter referred to as the conveying angle)
When the temperature was 30 degrees or more, it was virtually impossible to convey the powder or granules as described above.

This invention advantageously solves the problems of the prior art, and in particular, the belt is spaced at predetermined intervals in the length direction of the belt, and at 1/2 to 2/3 of the width in the width direction of the belt. A wave-shaped protrusion extending across is provided,
By making each of these waveform protrusions elastically deformable in the direction of belt curvature, a gap between the waveform protrusions in the belt width direction is ensured even when the conveyor belt does not form a perfect cylindrical shape. To provide a conveyor belt that effectively prevents conveyed objects from falling.

This idea will be explained below based on the drawings.

FIG. 6 is a cut away perspective view showing an embodiment of this invention.

In the figure, reference numeral 11 indicates a belt, and reference numeral 12 indicates a wave-shaped protrusion attached at the center of the conveying surface of the belt 11 so as to be perpendicular to the longitudinal axis of the belt 11.

The wave-shaped protrusions 12 are perpendicular to the belt surface, have a length of 1/2b to 2/3b relative to the belt width b, and have a uniform required protrusion height over the entire length.

Incidentally, it goes without saying that a plurality of such wave-shaped protrusions 12 are arranged at predetermined intervals in the length direction of the belt 11, and adhesives, screws, or other fixing means are used to attach the wave-shaped protrusions 12 to the belt 11. It is clear that means can be used.

As shown in FIG. 2, such a conveyor belt is also stretched around a tail pulley 5 and a drive pulley 6, and is conveyed from the supply chute 3 to the discharge chute 4.
Provided for transportation to.

Here, the conveyor belt during conveyance has a perfect cylindrical shape as shown in FIG. Therefore, the transported object is effectively prevented from falling downward.

In addition, when supplying the conveyed object from the supply chute 3 onto the conveyor belt, in order to prevent the above-mentioned shrinkage deformation of the tip of the corrugated protrusion from being restrained by the conveyed object supplied there, A conveyor belt is connected to a plurality of rollers 1 as shown in FIG.
4, the waveform protrusions 12 are deformed in advance so as to have the same shape as that during conveyance, while, as shown in FIG. Ensures the supply of conveyed items onto the conveyor belt.

Therefore, when the conveyed object is supplied from the supply chute 3, there is no possibility that the object will fall through the gap between the corrugated protrusions 12 and reduce the conveying efficiency.

Immediately before the conveyed items are discharged from the conveyor belt to the discharge chute 4, the conveyor belt is restored to the flat state shown in FIG. Since no gaps are created there, the objects to be transported are reliably prevented from falling from there.

FIG. 9 is a sectional view showing a modification of this invention, in which the height of the waveform protrusion 12 having the same waveform as that shown in FIG. 6 is gradually increased toward the widthwise center of the belt 11.

Note that the height of each part of the waveform protrusion 12 here is appropriately selected depending on the belt width and other factors, so that the cross-sectional shape of the conveyor belt during conveyance becomes as shown in FIG. 9b,
Since the recesses formed at the tips of the corrugated protrusions 12 are shallower than those shown in FIG. 7, the conveyor belt of this example is suitable for use in conveying powder, granules, and other objects that tend to fall.

Furthermore, FIGS. 10a and 10b are respectively plan views showing a modification of this invention in which the concavity shown in FIG. 7 due to the tip of the wavy projection is substantially removed; , a relatively short wavy protrusion 1 of uniform height is provided at the center of the belt 11 in the width direction.
2a, and this corrugated protrusion 12a.
Separate wave-shaped protrusions 12b and 12c are attached to each end of the conveyor belt on the forward side in the traveling direction of the conveyor belt as indicated by arrow A in the figure, with some overlap.

Here, both of the waveform protrusions 12b and 12c have the same height as the waveform protrusion 12a, and in the illustrated state, the waveform protrusion 12
The distance to the right edge of c is 1/2b relative to belt width b
~2/3b range.

In the modification shown in FIG. 10b, a waveform protrusion 12d which is integrated by interconnecting the waveform protrusions 12a, 12b, and 12c shown in FIG. 10a is attached to the belt 11. Wave-shaped protrusion 12 during transportation on the conveyor belt of
The deformed states of a, 12b, 12c and 12d are all shown in cross-sectional view in FIG. 10c,
In particular, due to the presence of the waveform protrusion 12a located at the rear in the conveyance direction, the depression at the tip of the waveform protrusion (Figs. 7 and 9)
(see Figure b) can be removed very effectively.

FIG. 11 is a sectional view showing still another modification of this invention, in which the conveyor belt extends linearly in a direction perpendicular to the traveling direction A of the conveyor belt, similar to that shown in FIGS. 6 and 9a. The chevron shape of the wave-shaped protrusion 12 is
Every other chevron is higher than the other chevrons,
When an object is being conveyed, these high peaks are used to close the depressions at the tips of the wave-shaped protrusions as shown in FIG. 7, as shown in FIG. 11b. Note that the high chevron here may be sharpened toward the traveling direction A, or may be depressed.

Therefore, the conveyor belt in this example is also the 10th conveyor belt.
Like the example shown in the figure, it is particularly suitable for use in conveying powder, granules, etc.

This invention has been explained above based on the illustrated example, but if the corrugated protrusions are made perpendicular to the belt surface, the conveyance amount per corrugated protrusion will be significantly reduced when the conveyance angle is 45 degrees or more. When the conveyance angle is large, the amount of conveyance can be increased by tilting the tips of the wave-shaped protrusions by 10 to 30 degrees toward the traveling direction of the conveyor belt.

Therefore, according to this invention, the waveform protrusions are always continuous in the belt width direction, and there is no gap between the waveform protrusions due to deformation and restoration of the conveyor belt. High conveyance efficiency can be achieved, and the installation space and equipment costs for the conveyor can be reduced.

[Brief explanation of drawings]

FIG. 1 is a cutaway perspective view showing a conventional conveyor belt, FIG. 2 is a perspective view showing how the conveyor belt is used, FIG. 3 is a sectional view showing the conveyor belt shown in FIG. 1 during transportation, and FIG. 4 and 5 are sectional views taken along lines - and - in Fig. 2, respectively, Fig. 6 is a cutaway perspective view showing an embodiment of this invention, and Fig. 7 is a third section of the conveyor belt shown in Fig. 6.
8 is a sectional view showing the condition of the conveyor belt shown in FIG. 6 at the material supply section;
Figure 9 is a sectional view showing a modification of this invention;
Figure 11 is an explanatory diagram showing another modification of this invention.
The figure is a sectional view showing still another modification of this invention. 11...Belt, 12, 12a, 12b, 12
c, 12d... Waveform protrusion, A... Traveling direction.

Claims (1)

[Scope of Claim for Utility Model Registration] In a conveyor belt that is curved in a cylindrical position and controls the conveyance of conveyed objects, a conveyor belt that is curved in a cylindrical shape and controls the conveyance of conveyed objects, has a conveyor belt that is arranged at a predetermined interval in the length direction of the belt at the center of the conveyance surface of the belt, and that has a width of the belt. A conveyor belt is provided with wave-shaped protrusions extending from 1/2 to 2/3 of its width in the direction of the belt, and each of these wave-shaped protrusions is elastically deformable in the direction of curvature of the belt.