JPS6234678A - Structure of dust collecting box for plasma cutting - Google Patents

Abstract

PURPOSE:To exhaust the harmful dust, gas, etc. generated by plasma cutting effectively with its suction by providing a suction port on one part of the enclosure around a cutting surface plate and by connecting the suction port to a dust collector by a hopper and duct. CONSTITUTION:The section part to enclose the cutting surface plate 1 performing a plasma cutting with a frame 2 and to leak no generated harmful dust, gas, etc. to the external part is provided. This section part is divided into two sections with partition 5, a suction hopper 3 and dumper 6 are provided to the suction port which is provided aside the one corner thereof so as to lead to the dust collector from the duct 4 and the exhaust section can be selected from the dumper 6. The harmful substance can be discharged effectively from the corner of the section as well by inclining the machine direction of the cutting surface plate 1 in the suction direction.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> This invention relates to a method for removing harmful dust and gas generated during plasma cutting.

<Prior Art> Conventionally, methods such as Japanese Patent Application No. 56-200052 have been used to remove the above-mentioned harmful dust, gas, etc. generated during plasma cutting. These are generally for large machines with long running ranges, and the most common method is to divide the bottom of the surface plate by cutting it in a direction transverse to the direction of gas travel, and separate sections from the sides to suck in harmful gases and dust. It was getting worse.

<Problems to be solved by the invention> The present invention is relatively small in scale and is
As in example 2, the suction hopper effectively suctions harmful dust, gas, etc. generated by plasma cutting, even though the suction hopper does not need to move together with the gas.

<Means for solving the problem> In a relatively small-scale plasma cutting machine, an enclosure is provided around the cutting surface plate on which the machine to be cut is mounted, and a suction hole is provided in a part of the enclosure to close the suction hole. Regarding the method of guiding dust and gas to a dust collector through a hopper and duct, and discharging the harmful dust and gas generated inside, - The corners of the frame are used to smooth the flow of the harmful dust and gas so that they can be effectively discharged. be.

<Example> FIG. 1 shows an example of a dust collection box according to the present invention,
In the figure, 1 is a cutting surface plate, 2 is surrounding the lower surface of the cutting surface plate,
A frame that prevents the generated harmful dust and gas from leaking outside, 3 is a part of the hopper that is attached to a part of the upper frame and sucks the harmful substances inside the frame to the outside, and 4 is a duct that leads to the dust collector.

In this explanatory diagram, reference numeral 5 denotes a compartment partition plate, which divides the frame into two compartments, and a damper 6 is provided for the suction hopper to allow selection of the discharge compartment, but the number of compartments is 2.
There is no problem even if it is more than 1.

Although FIG. 2 is basically the same as FIG. 1, it explains the difference in the direction of the cutting surface grid when the suction corner is changed.

Reference numeral 5 denotes a partition plate that partitions the frame 2 up to the bottom surface of the frame, and partitions sections within the frame to limit the suction range and increase the suction effect.

By placing the suction hopper at one corner of the compartment and tilting the direction of the bar of the cutting plate in the suction direction, harmful substances can be effectively discharged from the corner of the compartment.

Figure 3 shows an example in which the grid of the cutting surface plate is arranged parallel to the frame 2 and the suction hopper is attached to the side of the frame. The suction becomes stagnant and a sufficient suction effect cannot be achieved locally.

Effects> According to the method of the present invention, harmful dust, gas, etc. in the frame below the cutting surface plate can be effectively discharged by a hopper opened at one corner of the frame.

[Brief explanation of the drawing]

FIGS. 1 and 2 are explanatory views showing the structure of a dust collection box, and FIG. 3 is an explanatory view of a dust collection box in which the frame frames of the cutting surface plate are parallel. l Cutting surface plate 2 Frame 3 Hopper 4 Duct 5 Partition plate 6 Damper patent applicant
Koike Oxygen Industry Co., Ltd. Figure 1, Country 2

Claims (1)

[Claims] In a device that includes a cutting surface plate for plasma cutting, a hopper placed in one corner of a compartment formed by a frame or partition sucks in harmful dust, gas, etc. generated by the cutting surface plate, and the cutting surface plate The structure of a dust collection box for plasma cutting is characterized in that the grid is oriented in the direction of gas flow.