JPH04894B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides the following features:
This invention relates to an improvement in a conveyor belt cleaner that is pressed against the conveying surface to scrape off deposits thereon.

Conventionally known conveyor belt cleaners of this type include, for example, a chip mounting plate and a mounting board each having one end embedded in a substantially cylindrical rubber elastic body from above and below, and connected to the chip mounting plate. Some have a scraping tip fixed to the tip.

By fixing its mounting board to a cleaner holding bracket, this conveyor belt cleaner extends at an angle of, for example, about 60 degrees to the floor surface, and scrapes off deposits on the conveyor belt surface with its scraping tip. .

However, according to such conventional technology, when the conveyor belt conveys a particularly hydrated material, rust that has formed on the surface of the chip mounting plate, which is generally made of iron, causes the edges of the chip to be vulcanized and bonded. There was a risk that the chip would penetrate into the elastic body, and as a result, the chip mounting plate would fall off from the elastic body relatively quickly. In addition, with this conveyor belt cleaner that is used tilted, scraping material tends to accumulate particularly on the elastic body part, and when it solidifies, the deformation of the elastic body itself is restricted and effective scraping is inhibited. As well as, I guess,
There was a problem in that the deposits reached the surface strength of the conveyor belt, making it completely impossible to scrape them off with a scraping chip.

The present invention provides a conveyor belt cleaner that advantageously solves the problems of the prior art, and improves the durability of the conveyor belt cleaner by effectively preventing rust from forming on the chip mounting plate. Furthermore, the frictional force against the scraped material is sufficiently reduced to effectively prevent the scraped material from accumulating on the elastic body portion.

In particular, the conveyor belt cleaner of the present invention has the following features: by covering at least the portion near the connection between the chip mounting plate and the elastic body with a plastic coating,
To sufficiently prevent the occurrence of rust on a chip mounting plate and the accumulation of scraped matter on an elastic body part without impairing the original operation of the elastic body during the operation of a conveyor belt cleaner. In this case, if a plastic coating is provided to the part of the chip mounting plate adjacent to the chip, rust can be more effectively prevented from forming there, and if the entire elastic body is covered with a plastic coating, In addition, the rubber elastic body can also be protected from scrapings containing oil.

The present invention will be explained below based on illustrated examples.

Figures 1a and 1b are a front view and a side view, respectively, showing an embodiment of the present invention, in which 1 represents a substantially cylindrical rubber or rubber-like elastic body;
1A and 1B respectively show a chip mounting plate and a mounting substrate, each of which has one end embedded therein and is connected to the rubber-like elastic body 1 at a diametrically opposed position.

Here, the chip mounting plate 2 and the mounting board 3 are embedded into the elastic body to a position where one edge thereof is aligned with the through hole 1a of the elastic body 1, and are vulcanized and bonded to the rubber elastic body 1 there.

The mounting board 3 has a long hole 3a in its middle portion for mounting it on the cleaner holding bracket, and the chip mounting plate 2 is fixed to the other end, here the other edge, by brazing or other means. It has a scraping tip 4.

Furthermore, in this example, the area from the position adjacent to the scraping chip 4 of the chip mounting plate 2 to the intermediate position of the mounting board 3 is covered with a plastic coating 5, as shown in cross section in the figure. This plastic film 5 is produced by covering the outside of a 0.5 mm thick cylindrical shrink film made of vinyl chloride, for example, and then heating the cylindrical shrink film at a temperature of about 140°C for 7 minutes. This is done by shrinking the plastic film 5.
Since the chip mounting plate 2 is sufficiently prevented from coming into contact with scraped objects and the outside air, the occurrence of rust on the chip mounting plate 2 is prevented, and therefore, rust does not enter into the elastic body. In this case, at least in a portion adjacent to the scraping tip 4, the tip mounting plate 2
When the plastic coating 5 is bonded to the
Since scrapings and moisture are reliably prevented from entering between the two, the generation of rust can be more effectively prevented. Also in this case, it is preferable not to bond the elastic body 1 and the plastic coating 5 to each other in order to increase the degree of freedom of deformation of the elastic body 1.

Moreover, since the frictional force between the scraped material and the plastic film 5 is smaller than the frictional force between it and the rubber-like elastic body 1, the scraped material falls from the conveyor belt onto the plastic film 5 covering the rubber-like elastic body 1. Scrapings that have been removed will be much easier to slide off from there than in the prior art described above, and this will alleviate or eliminate the problem caused by the accumulation of scrapings thereon, even if the scrapings are not there. Even if it adheres to or accumulates on the plastic coating 5, the action of the rubber-like elastic body 1, which is relatively deformable with respect to the plastic coating 5, is not significantly impaired.

In addition, since the plastic coating 5 in this example covers the entire rubber-like elastic body 1, there is no risk that the elastic body 1 will deteriorate even if the scraped material contains oil.

On the other hand, if it is not necessary to provide the plastic coating 5 over such a wide area as described above due to the nature of the scraped material, etc., as shown in area A in FIG. It is also possible to cover only the area near the plastic coating 5 with the plastic coating 5, and in this case as well, it is possible to sufficiently effectively prevent the generation of rust from the area covered with the plastic coating 5 and the adhesion and accumulation of scraped materials to that area. can.

FIGS. 2a and 2b are side views showing modified examples of the invention, respectively.

In Fig. 2a, the plastic coating 5 is tightly adhered to the upper half of the elastic body 1, and the coating 5 hangs down in a cylindrical shape in the lower part, and Fig. 2b
The plastic coating 5 is tightly attached from the upper end to the middle part of the chip mounting plate 2, and the plastic coating 5 is applied below it to the range beyond the elastic body 1.
The side surface shape is extended so as to widen toward the end, and any of these modifications provides the same effect as the above-mentioned embodiment.

Although this invention has been explained above based on the illustrated example, since the problem of rusting may also occur on the mounting board side, the portion near the connection part of the chip mounting plate to the elastic body and the elastic body of the mounting board It is also possible to partially provide a plastic coating in the vicinity of the connecting portion to the connector, and the type and thickness of the plastic coating can be appropriately selected as required. Furthermore, it goes without saying that the plastic coating does not necessarily have to be formed from a shrink film.

Therefore, according to the present invention, in particular, at least the portion near the connection between the chip mounting plate and the elastic body,
Covering with a plastic film can improve the durability of the conveyor belt cleaner by preventing rust from forming on the chip mounting plate and from entering the elastic body. This has the remarkable effect of preventing the adhesion and accumulation of substances and maintaining the functionality of the belt cleaner over a long period of time.

[Brief explanation of drawings]

1A and 1B are a front view and a side view showing an embodiment of the present invention, respectively, and FIGS. 2A and 2B are a side view showing a modified example of the present invention, respectively. DESCRIPTION OF SYMBOLS 1... Elastic body, 2... Chip mounting plate, 3... Mounting board, 4... Scraping chip, 5... Plastic coating.

Claims (1)

[Claims] 1. A rubber or rubber-like elastic body, a chip mounting plate and a mounting board each having one end embedded in the elastic body and a mounting board, a scraping chip fixed to the other end of the chip mounting plate, and at least a chip mounting plate and an elastic body. A conveyor belt cleaner comprising a plastic coating covering a portion near the connection part with the body.