JPS6328709B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a method for treating fused debris during heating and melting cutting such as plasma cutting and gas cutting.

[Background of the invention]

First, a conventional example will be explained with reference to FIGS. 1 and 2. In the figure, reference numeral 1 denotes a workpiece. The workpiece 1 has a U-shaped cross section, and is mounted and fixed on jigs 3 and 4 by clamps 2. A cutting torch 5 is used for plasma cutting, and is held by a clamp 6 of a feeding jig (not shown). 14 indicates a cylinder.

Next, to explain the conventional cutting method described above, a cutting arc 7 is generated from the cutting torch 5, and the cutting torch 5 is moved while applying the cutting arc 7 to the cutting part of the work 1. cutting 8
Do the following.

However, in the conventional method described above, the melted fragments 9
scatters at high speed and damages other parts of workpiece 1 and jig 3.
It has the disadvantage that it adheres to other members such as 10 and is deposited and solidified. Therefore, in the past, as shown in FIG.
A method for preventing adhesion to other members has been provided. However, since the sill board 11 is fixed by a fixing jig 12, there is a drawback that fusing and flying debris 9 adheres 13 to the sill board 11, which accumulates quickly and has a short service life. Further, if the distance between the cutting part and the cutting part 11 is less than several tens of mm, the cutting part 11 has a fixed structure, and therefore has the disadvantage of being fused and cut.

[Purpose of the invention]

The present invention aims to solve the above-mentioned drawbacks, and it not only prevents the melted and scattered debris from adhering to other parts of the workpiece or other members during heating and melt cutting, but also simplifies the separation and removal of the melted and scattered debris. It is an object of the present invention to provide a method for disposing of fused debris during heating and melting cutting.

[Summary of the invention]

In order to achieve the above-mentioned object, the present invention blocks the scattering path of fused fragments during heating and melt cutting with a rotating body made of a material with high thermal conductivity, and cools the rotating body by bringing it into contact with cooling water. The rotating body is characterized in that by rotating the rotary body while rotating the rotating body, the flying objects attached to the rotating body are separated and removed.

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail based on embodiments of the drawings. FIG. 4 shows a longitudinal cross-sectional side view of a main part showing a method for treating fused and scattered debris according to the present invention. In the figure,
Reference numeral 15 denotes a disk-shaped rotating body, and the rotating body 15 is formed to rotate by a drive shaft 16 at a position where it blocks the scattering path of the melted and scattered debris 9. The rotating body 15
is made of a highly thermally conductive material such as copper,
It rotates at a speed of about 30 to 50 m/min while being in contact with cooling water 17. The cooling water 17 is injected from a nozzle 18 and comes into contact with the rotating body 15, and is formed so that the deposits 19 on the rotating body 15 are separated and removed by the injection force as well as the temperature change of the rotating body 15. There is.
The jetting of the cooling water 17 from the nozzle 18 is controlled in conjunction with the heating, melting and cutting. In addition, cooling water 1
Needless to say, 7 does not have to be an injection structure as in this embodiment, but may be a simple water storage structure.

A toy 20 is provided below the rotating body 15 to receive the injected cooling water 17. The toy 20 is connected via a drain pipe 21 to a separation device 22 that separates the cooling water 17 from the separated and removed deposits 19, and is configured so that the cooling water can be reused as circulating water. Reference numeral 23 indicates a collection box for the deposits 19 that have been separated and removed. The rest of the structure is the same as that of the conventional example, so the same parts are given the same reference numerals and the explanation will be omitted.

Next, the action will be explained. Cooling water 1 from nozzle 18
The rotating body 15 is rotated at high speed while being cooled by injecting water. At the same time, a cutting arc 7 is generated from the cutting torch 5 to cut the workpiece 1 in a predetermined manner. The melted and scattered debris 9 collides with the rotating body 15, is cooled, and instantly solidifies, but since the rotating body 15 is being cooled and rotating at high speed, it does not stick to the surface of the rotating body 15, and the cooling water 17 The deposit 19 is separated and removed from the rotating body 15 due to the high impact contact with the rotating body 15. After that, if the cooling water 17 is collected by the toy 20 and the separated and removed deposits 19 are separated from the cooling water, the cooling water can be reused, and the separated and removed deposits can also be easily disposed of. becomes.

〔Effect of the invention〕

According to the present invention, since the method uses a rotary body that is rotated at high speed while being cooled to block the melted and scattered debris, the melted and scattered debris during heating and melting cutting does not adhere to other parts of the workpiece or other members. Of course, it is possible to separate and remove the melted and scattered debris more easily than with the rotating body. Therefore, since it does not have a fixed structure like the conventional example shown in FIG. 3, its service life is also dramatically extended. Furthermore, if the cooling water is connected to a device that separates the deposits that have been separated and removed, it can be reused as circulating water, thereby saving water.

[Brief explanation of drawings]

Fig. 1 is a vertical sectional side view of the main part showing a conventional example, Fig. 2 is a side view taken from the arrow direction of Fig. FIG. 2 is a longitudinal sectional side view of a main part showing a method for treating fused and scattered debris according to the invention. DESCRIPTION OF SYMBOLS 1... Workpiece, 9... Fusing and scattering object, 15... Rotating body,
17... Cooling water, 19... Deposits.

Claims (1)

[Claims] 1 The scattering path of the fused spatter during heating and melt cutting is blocked by a rotating body made of a material with high thermal conductivity, and the rotating body is brought into contact with cooling water and rotated while being cooled, so that the particles adhere to the rotating body. A method for disposing of fused and scattered debris during heating and melt cutting, the method comprising separating and removing the fused and blown debris.