JPH0313447Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a structure for preventing the generation of dust in a conveyor, and more specifically, to an improvement in preventing the generation of dust in a belt conveyor for conveying powder.

[Conventional technology]

Conventionally, belt conveyor systems have been widely used as powder conveying means.

In this type of belt conveyor system, when powder is dropped from a hopper onto the conveyor or transferred from one conveyor to another, dust is likely to be generated due to the impact of the fall, so it is important to prevent pollution. It is essential to take measures to prevent dust generation.

As a means to prevent the generation of dust, as shown in Fig. 5, rubber skirts S and S are provided on the surface of the conveyor belt V to prevent the spread of dust, or as shown in Fig. 7, the conveyor belt It was common practice to cover the entire belt V with a casing C.

[Problems with conventional technology]

However, in the case of the structure shown in FIG. 5, the belt V may sag between the carrier rollers R...R of the conveyor belt V due to the weight of the conveyed object, as shown in FIG. S
There is a problem that a gap d may be created between the bottom surface and dust may be ejected from this gap, and in order to prevent this gap from occurring, the pressing force of the skirt S is increased and the tension of the conveyor belt is increased. If the belt surface increases, contact with the skirt S causes local wear on the belt surface. Alternatively, new problems such as a decrease in belt durability may occur.

On the other hand, as shown in Fig. 7, the method of covering the entire conveyor belt with a casing can eradicate dust generation and can be said to be convenient, but it requires very large equipment and the conveyance route cannot be easily moved, making it a permanent installation. There was a problem in that the scope of application was limited to general equipment.

[Problems solved by invention]

In view of the above-mentioned problems, this invention aims to provide a dust generation prevention structure for a conveyor that can prevent dust generation for a long period of time without impairing the performance and strength of the conveyor belt, and is simple in terms of equipment. It is something that is done for a purpose.

[Technology to solve problems]

That is, in the conveyor dust prevention structure of this invention, a plurality of carrier bars having a low-friction surface are arranged in parallel along the length direction of the belt on the back side of the conveyor belt, and on the other hand, a plurality of carrier bars having a low-friction surface are arranged in parallel on the conveyor belt surface in the width direction of the surface. The conveyor belt is characterized in that bars made of the same material as the carrier bars are disposed on both edges at positions corresponding to the carrier bars, with their low-friction surfaces pressed into contact with the conveyor belt surface.

〔Example〕

Next, this invention will be explained using examples.

Figure 1 is a cutaway surface view of the main parts of an embodiment of this invention.
FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. 3 is an enlarged sectional view of the main part of the embodiment.

In the conveyor dust prevention structure of this invention, a plurality of carrier bars 2...2 each having a low-friction surface are arranged in parallel along the belt length direction (arrow X) on the back surface 1A of the conveyor belt 1. On the surface 1B of the belt 1, the carrier bars 2,
Bars 2A, 2A made of the same material as the carrier bar 2 are disposed at positions corresponding to the conveyor bar 2 with their low friction surfaces 2B in pressure contact with the surface 1B of the conveyor belt 1.

In the above embodiment, the carrier bar 2 has a long rod shape, and has a flat surface 2, as shown in FIG.
B' is formed by integrally laminating a low friction layer 2B made of high molecular weight polyethylene or the like.

In addition, as a means for pressing the bar 2A against the surface 1B of the conveyor belt 1, a spring 3 is used to press and bias the bar 2A as shown in FIG. It can be formed of a rubber-like elastic body and configured to be pressed and biased by the compressive elasticity of the bar 2A itself.

In addition, in FIG. 4B, 4 indicates a fixed support piece of the bar 2A.

[Effect]

In the structure of this invention, the conveyor belt 1
Since it is supported flatly along its length by the carrier bars 2...2, it will not sag due to the load of the conveyed object, and both sides of the belt surface 1B are also made of the same material as the carrier bars 2A. Since it is pressed down, the bar 2A acts as a lateral wall on the belt surface and prevents the load from spilling.

Coupled with the above-mentioned sagging prevention effect of the conveyor belt 1, no gap is generated at the contact interface between the belt surface 1A and the bar 2A, and dust generation from this area can be prevented.

Incidentally, in order to further prevent dust scattering, a skirt S may be provided with its lower end in contact with the bar 2A as shown by the chain line in FIG. 2.

Further, since both the carrier bar 2 and the bar 2A have low friction surfaces in contact with the conveyor belt 1, there is little local wear of the belt.

〔effect〕

As explained above, this invention effectively prevents the generation of dust from both sides of the conveyor belt, and the bar 2A disposed on the front side of the belt is the same as the carrier bar 2 disposed on the back side of the belt. Since it is made of the same material, it can be used as is, and there is no need to separately manage the production of new materials.Furthermore, since there is no need for large-scale casing, etc., the belt line can be easily moved or changed as necessary. It has various practical effects.

[Brief explanation of drawings]

Fig. 1 is a cutaway surface view of the main part of an embodiment of this invention, Fig. 2 is a sectional view taken along the line - - of Fig. 1, Fig. 3 is an enlarged sectional view of the main part of the embodiment, and Fig. 4 A and B are other parts. 5 to 7 are explanatory diagrams of the conventional example.

Claims (1)

[Scope of utility model registration request] A plurality of carrier bars having a low-friction surface are arranged in parallel on the back side of the conveyor belt along the length direction of the belt, and on the other hand, on the surface of the conveyor belt, a plurality of carrier bars having a low-friction surface are arranged on both widthwise edges of the surface at positions corresponding to the carrier bars. . A structure for preventing dust generation of a conveyor, characterized in that a bar made of the same material as the carrier bar is disposed with its low friction surface in pressure contact with the surface of the conveyor belt.