JPS60183422A - Pipe/steel bar separator - Google Patents

Abstract

PURPOSE:To further heighten the repulsive force between pipes/steel bars on an electromagnet by providing an electromagnet in which at least either an inner pole or an outer pole comprises a laminated iron core formed by disposing magnetic permeable materials and non-magnetic permeable materials alternately in layers. CONSTITUTION:A pipe/steel bar separator includes an electromagnet having an inner pole, an outer pole and an exciting coil formed between poles disposed on a conveying line for a pipe/steel bar 5. At least the inner pole or the outer pole comprises a laminated iron core 6 formed by alternately laminating iron core materials 7 made of magnetic permeable material and non-magnetic iron core materials 8 made of non-magnetic permeable material. In this arrangement, the magnetic reistance is high in the laminating direction of the iron cores 6, and it is low in the direction orthogonal to the laminating direction. Thus, the percentage of flux quantity flowing in from the side of magnetic flux magnetically saturating the interior of the pipe/steel bar 5 is increased so that high magnetic charge is produced by the side of the pipe/steel bar 5 to obtain larger repulsive force between the pipes/steel bars 5.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a pipe/steel bar separator used in a pipe/steel bar conveyance line.

Conventional technology In the past, pipes were lined up in parallel using magnets on a production line to prevent collisions and noise generation, or to maintain distance between pipes during the conveyance process of a metal line. A separator is used that generates a magnetic repulsion between adjacent pipes, and creates a gap between the pipes so that they do not come into direct contact with each other due to this repulsion.

Permanent magnets or electromagnets are used for these separators depending on the purpose of use, and while it is easy to obtain repulsive force with permanent magnets, it is difficult to turn on and off the repulsive force; In the case of the one that adopts
``Cut'' is easy, but it has the disadvantage that it is difficult to obtain a large repulsive force.

Here, a specific example of a separator using an electromagnet will be explained, as shown in Fig. 1(a). As illustrated in (t)), there is an inner pole 1 and an outer pole 2 on the yoke 5.
An electromagnet formed by winding an excitation coil 4 is provided between them,
A pipe or steel bar 5 is conveyed over this electromagnet.

A separator using an electromagnet with this conventional structure
When this pipe or steel bar 5 is arranged, since the magnetic resistance within both magnetic poles has no directionality, the flow of magnetic flux changes its course within both magnetic poles 1.2, as shown in Figure 2, and the main The liquid flows into the pipe or steel bar 5 from the lower part thereof and magnetically saturates the inside of the pipe or steel bar 5.

Therefore, the magnetic repulsion between adjacent pipes or steel bars 5 is small, and in order to obtain sufficient repulsion to function as a separator, it is necessary to arrange a plurality of electromagnets in the length direction of the pipes or steel bars 5. , it was necessary to use a specially designed large electromagnet.

For this reason, the manufacturing cost is high, and the power consumption is large, making it extremely expensive.

Purpose of the Invention Therefore, the present invention improves the electromagnet used in the above-mentioned pipe/steel bar separator, so that it can be easily connected between pipes and steel bars without increasing the number of installed electromagnets or increasing the size of the electromagnet. The purpose of the present invention is to provide a pipe/steel bar separator that can further increase the repulsive force of the pipe/steel bar separator.

Structure of the Invention According to the pipe/steel bar separator according to the present invention 1, at least one of the inner pole and the outer pole constituting the electromagnet is composed of a laminated iron core in which magnetically permeable materials and magnetically non-permeable materials are alternately laminated. It is characterized by the fact that

EXAMPLES The present invention will be explained below with reference to illustrated examples of the present invention. FIG. 3 shows a partially enlarged view of the inner pole 1 and the outer pole 2 of the pipe/steel bar separator shown in FIGS. 1(a) and 1(b). Here, the iron cores constituting the inner pole 1 and the outer pole 2 include a magnetically permeable iron core material 7 and a magnetically non-permeable nonmagnetic iron core material 8 in a direction perpendicular to the extending direction of the pipe/steel bar 5. It has a laminated iron core 6 which is alternately laminated.

Here, the laminated iron core 6 has a feature that the magnetic resistance is high in the lamination direction and the magnetic resistance is low in the direction perpendicular to the lamination direction.

Therefore, when a pipe or steel bar 5 is placed on this electromagnet, the flow of magnetic flux 9 within both magnetic poles 1 and 2 (3) is blocked in the stacking direction, so it flows from the bottom and side of the pipe or steel bar 5. The inside of the pipe or steel bar 5 is magnetically saturated.

In this way, it is possible to increase the ratio of the amount of magnetic flux that flows in from the side of the magnetic flux that magnetically saturates the inside of the pipe or steel bar 5, and to generate a higher magnetic charge on the side of the pipe or steel bar 5. It is possible to obtain a larger repulsion force.

Further, although it is desirable that both the inner pole 1 and the outer pole 2 constituting the electromagnet be made of a laminated iron core, it is also possible to achieve some effect by making one of the magnetic poles a laminated iron core.

Effects of the Invention The embodiments of the pipe/steel bar separator according to the present invention are as described above, and the following effects can be achieved.

Compared to a separator that uses electromagnets with the same weight and dimensions as the conventional structure, it is possible to obtain a large magnetic repulsion force between pipes or steel bars (4), and the manufacturing cost is not much different, and the power consumption is reduced. There's no need to increase it.

[Brief explanation of the drawing]

Figure 1)t(1)) is a plan view and cross-sectional view of a pipe/steel bar separator, Figure 2 is a partially enlarged view showing a conventional example, Figure 3
The figure is a partially enlarged view showing an example. 1. Inner pole, 2. Outer pole, 3. Yoke, 4. Excitation coil, 5. e-pipe or steel bar, 6. Laminated iron core, 7. Iron core material, 8. Non-magnetic. Iron core material, 9...Flow of magnetic flux. Figure 1 (a) (b) Figure 2 Figure 3

Claims (1)

[Scope of Claims] An electromagnet having an inner pole and an outer pole with an excitation coil formed between the two poles is provided in a pipe/steel bar separator i provided in a pipe/steel bar conveyance line, the electromagnet A pipe/steel bar separator characterized in that at least one of the inner pole and the outer pole of the separator is composed of a laminated iron core in which magnetically permeable and non-magnetically permeable materials are alternately laminated.