JP3276129B2 - Metal swarf removal equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing metal chips, and more particularly, to a chip which is scattered in a metal pipe when cutting or drilling is performed. The present invention relates to a metal swarf removing device for removing swarf using a magnet.

[0002]

2. Description of the Related Art Gas used in each household is supplied through a supply pipe and a service pipe branched from a main pipe buried under a road. When a supply pipe is pulled in from a main pipe, it is general to take a shut-off measure at one location of the main pipe affected by the branching operation, and to stop the normal gas supply before performing the branching operation. Next, when laying the supply pipe, usually, first, a cutting port is provided on the main pipe by a cutting means, and a supply pipe is connected to the main pipe in accordance with the branch port formed in this manner. I will pull it in first.

However, when the gas main is an iron pipe,
When a drilling operation is performed on the main pipe by a cutting means, chips (pieces) are scattered in the pipe. Since this kind of chip has a small particle size, if it is not immediately and thoroughly removed after the perforation operation, there is a risk that the chips will flow along with the subsequent gas flow to the customer. Such swarf gets into the gas appliance and tends to hinder daily use of gas.

In order to solve the above-mentioned problem, as a conventional example, as shown in FIG.
A metal swarf removing tool 10 equipped with an FA (planar) magnet 12 is known. After perforating the iron pipe P as the main pipe, the chip removing tool 10 is connected to the branch port 1 of the iron pipe P.
3 and inserted into the pipe and groping and moving it back and forth and left and right to adsorb the chips scattered in the pipe.

[0005]

However, the above-described prior-art chip removing tool 10 has some problems as described below.

One of the problems is that the attracting surface 12 'of the magnet 12 is planar, so that the movement of the attracting surface 12' in the pipe is no matter how the operator moves the rod-shaped member 11 outside the pipeline. The range is narrow, and the chips scattered in the pipe cannot be sufficiently removed. Further, when the bar-shaped member 11 is inclined, the attracting surface 1 of the magnet 12 that can contact the falling chips
Since the portion 2 'becomes small, it becomes impossible to sufficiently remove chips.

Second, the adsorbing surface (ie, effective area) 12 'of the magnet 12 for adsorbing the chips is small due to the flat surface, and the amount of chips removed at one time is small. Therefore, when the amount of the dropped chips is large, several removal operations are required, and the progress of the entire construction is delayed.

Thirdly, since the iron chips adsorbed by the magnet 12 are removed by a rag or the like outside the pipeline, the chips are scattered in the vicinity, contaminate the working environment and cause a worker's health. And can be a safety hazard.

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a metal swarf removing device capable of efficiently removing iron swarf scattered in a pipeline.

[0010]

In order to achieve the above object, a metal chip removing device according to the present invention comprises a rod-shaped body, a spherical magnet for adsorbing chips, and a spherical magnet at the tip of the rod-shaped body. And a detachable cover provided so as to cover the spherical magnet so that the chips are not directly attracted to the spherical magnet. At the time of removal, the above-mentioned metal chip removal device is inserted into the pipe from the work place, the spherical magnet is moved in the pipe line to adsorb the chip, and then the metal chip removal device is pulled back and the cover is removed. By removing the swarf, the swarf adsorbed by the metal swarf removing device is collected to remove the swarf scattered in the pipeline.

The present invention is also characterized in that the elastic member is a coiled spring and the cover is a vinyl bag which does not hinder the passage of magnetic force.

[0012]

According to the metallic swarf removing device constructed as described above, the attracting surface of the magnet which can come into contact with the swarf scattered in the pipe has a spherical surface, that is, the attracting surface has a conventional planar shape. Since it is larger than a magnet, chips can be sufficiently removed.

Further, since the spherical magnet is movably connected to the rod-shaped main body via the coil-shaped spring, the range of movement in the pipe becomes larger than before, and even when the amount of chips is large, only one operation is required. Can be entirely removed, and the efficiency of the entire construction is improved.

When removing the iron chips adsorbed by the spherical magnet out of the pipeline, it is only necessary to remove the cover such as a vinyl bag from the rod-shaped main body, so that the chips are collected in a container or the like. It can be easily and reliably removed. Therefore, the problem that chips are scattered in the vicinity and pollute the working environment can be avoided.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. As can be seen with reference to FIG. 1, the metal chip removing device 1 of the present invention has a rod-shaped main body 2, a spherical magnet 4 for adsorbing the chips 6, and a spherical end 4 ′ of the rod-shaped main body 2. Coil spring 3 for movably connecting magnet 4
And a removable plastic bag 5 provided so as to cover the spherical magnet 4 so that chips are not directly attracted to the spherical magnet 4.

More specifically, the spherical magnet 4 is a manganese aluminum carbon magnet. The magnet has a spherical shape, and the entire spherical surface is capable of adsorbing iron chips. It is to be noted that a magnet made of another material can be used as necessary, for example, W steel or Cr steel as a magnet steel, or CO / W / Cr / C magnet steel. The spherical magnet 4 is movably connected to the tip 2 ′ of the rod-shaped main body 2 via the coil spring 3. In the present embodiment, a coil-shaped spring is used as an elastic member, but other elastic members, such as rubber wires and strings, can be used as necessary. One end of the coil spring 3 is fixed to the spherical magnet 4, while the other end is fixed to the tip 2 ′ of the rod-shaped main body 2.

The rod-shaped main body 2 has an appropriate length and thickness so as to be easily held and moved by an operator's hand, and a material constituting the rod-shaped main body 2 is preferably a non-metallic material such as plastic. In the lower part of the rod-shaped main body 2, a plastic bag 5 as a cover is detachably mounted so as to cover the spherical magnet 4 and the coiled spring 3. The plastic bag 5 used in this way is intended to prevent iron chips from being directly attracted to the spherical magnet. Other materials can be used as needed for the bag, as long as the material does not prevent the passage of magnetic force.

Using the metallic chip removing device 1 of the present invention,
When removing the swarf scattered in the pipe, first, as shown in FIGS. 2 and 3, the device 1 is inserted into the iron pipe P to a necessary degree from the branch port 7 as a branching work site. Then, the rod-shaped main body 2 is moved by hand while holding the rod-shaped main body 2 outside the conduit so as to move the spherical magnet 4 in the conduit. Along with this movement, the spherical magnet 4 hanging from the tip 2 ′ of the rod-shaped main body 2 via the coil spring 3 can move in a wide range in the tube, and the attractive force of the spherical magnet 4 causes the spherical magnet 4 to move inside the tube. Chips 6 falling on the surface of the vinyl bag 5 can be adsorbed. In particular, as shown in FIG. 3, the spherical magnet 4 can be moved over a wide range in the pipeline by the coil spring 3, so that all the chips 6 scattered during the cutting or drilling work of the iron pipe P can be absorbed without leaving any. Only one chip removal operation is sufficient.

Further, as can be seen with reference to FIGS. 4 (a) and 4 (b), after all the chips have been adsorbed, the chip removing device 1 is pulled back from the inside of the pipe, and the chip is removed using an appropriate container 8. The vinyl bag 5 is detached from the rod-shaped main body 2 so as to enter. Spherical magnet 4
Since the magnetic force disappears on the surface of the plastic bag 5 away from the metal bag, iron chips attached to the surface of the plastic bag 5 fall into the container 8. The surface of the plastic bag 5 is smooth, so that when the magnetic force disappears, the chips fall off without the attachment of chips.

[0020]

According to the metallic chip removing device of the present invention,
Since the attracting surface of the magnet that can come into contact with the chips scattered in the tube is spherical and is larger than the conventional planar magnet, the chips can be sufficiently removed.

Further, since the spherical magnet is movably connected to the rod-shaped main body via the coil-shaped spring, the range of movement in the pipe becomes larger than before, and even when the amount of chips is large, only one operation is required. Can remove all the chips, and the efficiency of the entire construction is improved.

When iron chips adsorbed on the surface of the vinyl bag by the spherical magnet are removed outside the pipeline, it is possible to simply remove the cover of the vinyl bag from the rod-shaped main body. The powder can be easily and reliably removed in a container or the like. Therefore, the problem that the chips are scattered in the vicinity and contaminate the working environment can be avoided.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a metallic chip removing device according to the present invention.

FIG. 2 is a schematic diagram showing a state of use of the metal swarf removing device of the present invention.

FIG. 3 is a schematic view showing a use state of the metallic chip removing device of the present invention.

FIG. 4A is a schematic view showing a state in which the apparatus of the present invention is pulled back from a pipe line. FIG. 4B is a schematic view showing a state in which the adsorbed chips are collected in a container.

FIG. 4 (b) is a schematic view showing a state where the adsorbed chips are collected in a container.

FIG. 5 is a schematic view showing a metal swarf removing tool and a state of use thereof in a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Metal swarf removal device 2 Rod-shaped main body 3 Coiled spring 4 Spherical magnet 5 Plastic bag

Claims (2)

(57) [Claims] 1. A metal swarf removing device for removing swarf scattered in a pipeline from a construction site when performing a cutting or drilling operation on the metal stub, wherein the metal swarf removing device is provided. Is a rod-shaped main body, a spherical magnet for adsorbing chips, an elastic member for movably connecting the spherical magnet at the tip of the rod-shaped body, and covering the spherical magnet so that chips are not directly adsorbed to the spherical magnet. In order to remove the swarf scattered in the pipe, insert the above-mentioned metal swarf removal device into the pipe from the work site and move the spherical magnet in the pipe. The metal chips are removed, and then the metal chip removing device is pulled back, and the cover is removed to collect the chips adsorbed by the metal chip removing device and scatter the chips in the pipeline. Metallic chips removal characterized by removing dust Location. 2. The metal chip removing device according to claim 1, wherein said elastic member is a coiled spring, and said cover is a vinyl bag which does not hinder the passage of magnetic force.