JP2586109Y2 - Lifting electromagnet with guide stopper - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting electromagnet having a guide stopper for positioning a steel material to be hung.

[0002]

2. Description of the Related Art In general, there are two methods of lifting and transporting a steel material: transporting the steel material in a posture where the steel material is placed, and transporting the steel material after reversing it. In addition, there is also an operation of performing only inversion at the position without transporting the steel material. As shown in FIGS. 5 and 6, a conventional suspended electromagnet M ′ having a guide stopper is provided with a magnetic pole 2 at the bottom of a magnet main body 1 which is a yoke.
The guide stopper 3 having a slide structure is vertically attached to one end in the width direction of each side surface 1a at both ends in the longitudinal direction. The guide stopper 3 is provided with a flange 3a at an upper end thereof, is slidably inserted in a vertical direction into a guide cylinder 4 fixed to the above-described portion of the magnet main body 1, and is provided with a predetermined downward direction from the lower surface of the magnetic pole 2. It protrudes only by the length.
In each of the drawings, reference numeral 5 denotes a wire insertion bracket provided on the upper surface of the magnet main body 1, and reference numeral 6 denotes a hanging wire inserted through the bracket 5.

When a steel material is lifted and transported in the same posture, the entire lifting electromagnet M 'is placed on the target steel material S' in a non-powered state, and the guide stopper 3 is moved by the guide stopper 3 to the steel material S '. The lifting electromagnet M 'is slid until it comes into contact with one end surface of the lifting electromagnet M'.
And the steel material S 'is adsorbed and lifted and transported as it is. In the conventional lifting electromagnet M ′, since the guide stopper 3 is vertically mounted on one end in the width direction of the lifting electromagnet M ′, almost the entire surface of the magnetic pole 2 can be effectively used, and the posture is maintained as it is. It is suitable for lifting and transporting the steel S '.

[0004] On the other hand, when carrying the steel material, it is necessary to turn the steel material after it is turned over, or when only the steel material is turned on the spot, one end of the steel material is positioned at the center in the width direction of the lifting electromagnet. From this, the steel material is attracted, and then the attracting force of the lifting electromagnet is reduced, and one end of the steel material located at the center in the width direction is set as the inversion center, and the steel material is inverted. I have. In the above-described lifting electromagnet M ′, since the guide stopper 3 for positioning the steel material is attached to one end in the width direction of the lifting electromagnet M ′, one end serving as the reversal center of the steel material is connected to the lifting electromagnet M ′. It cannot be positioned at the center in the width direction of M '. In addition, when the guide stopper is attached vertically to the center portion of the lifting electromagnet in the width direction for positioning during the above-described reversing operation, even if the positioning before the reversal of the steel material can be performed, when the steel material is to be reversed, The guide stopper, which is perpendicular to the guide, prevents the steel material from being smoothly turned over due to the obstacle, and the guide stopper becomes an obstacle when the steel material is sucked and transported without being turned over.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a guide stopper is used to position a steel material so that the steel material can be turned over. In addition, when the steel material is transported, the guide stopper does not hinder the steel material. It is an object of the present invention to be able to perform both the reversing work and the carrying work without any trouble.

[0006]

In order to solve this problem, the present invention employs a magnet which is provided with a magnetic pole at a lower portion of a magnet body, which is a yoke, and has a magnet body at each side surface at both longitudinal ends. In the lifting electromagnet to which the guide stopper for positioning the steel material to be suspended is mounted, the lower end of the guide stopper of the slide structure is located at the center in the width direction on each side surface, That is, the guide stopper is attached to the side surface at an angle.

[0007]

According to the invention, the guide stoppers, which are obliquely mounted on the respective side surfaces at both ends in the longitudinal direction of the magnet main body, are located at the lower end by their own weight, and the lower end thereof is a predetermined length downward from the lower surface of the magnetic pole. It protrudes in an inclined manner and is located at the center in the width direction of the side surface. When reversing steel,
After the lifting electromagnet is slid and positioned by bringing one end of the steel material into contact with the guide stopper and then reversing the steel material around the end that is in contact with the guide stopper, during the reversal, The guide stopper is pushed obliquely upward by the end of the steel material. In addition, when performing a normal transport operation, when the magnetic pole of the lifting electromagnet approaches the steel material, the guide stopper that is inclined and protrudes from the lower surface of the magnetic pole is pushed up obliquely upward by the steel material, and Is adsorbed on the magnetic pole without any trouble.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments. The same parts as those of the conventional devices described above include:
Use the same code. FIG. 1 is a partial perspective view of the lifting electromagnet M according to the present invention, FIG. 2 is a partial front view thereof, and FIG. 3 is a side view thereof. A guide stopper 13 having a rectangular cross section is attached to each side surface 1a at both ends in the longitudinal direction of the magnet main body 1 of the lifting electromagnet M in an inclined manner. The guide stopper 13 is slidably inserted into the guide cylinder 14, and its lower end is located at the center in the width direction of the side surface 1 a, and is obliquely downward from the lower surface of the magnetic pole 2 when the steel S is not adsorbed. At a predetermined length. A flange 13a is provided at the upper end of the guide stopper 13, and when the flange 13a contacts the upper end surface of the guide tube 14, the lower end position of the guide stopper 13 is determined. A vertical contact surface 13b and a horizontal contact surface 13c are formed at the lower end of the guide stopper 13, respectively.

[0009] In order to adsorb and transport the steel material S lying on its side after turning over, the following is performed. First, when the entire lifting electromagnet M is slid on the target steel S in a non-power-supplied state, a vertical contact surface of the lower end of the guide stopper 13 projecting obliquely downward from the lower surface of the magnetic pole 2. One end of the steel material S in the width direction abuts on 13b, thereby positioning the steel material S in the width direction of the magnetic pole 2. Thereafter, when the steel material S is lifted as shown by a two-dot chain line in FIG. 3 to generate a suction force smaller than that during transportation by feeding power, the suction balance along the width direction is broken, and The steel material S is a guide stopper 13
As shown by the alternate long and short dash line in the figure, the guide stopper 13 is moved by the end of the steel material S so that the guide stopper 13 slides by the end of the side of the steel material S with the end of the side in contact with the magnetic pole 2 as the center of reversal. (L) is slid and pushed upward diagonally. Therefore, the steel material S lying down
Is reversed and adsorbed without any trouble to the magnetic pole 2, and is transported in this state.

When the steel material S is transported in the same posture, as shown in FIG. 4, when the lifting electromagnet M is placed on the steel material S, it projects obliquely downward from the lower surface of the magnetic pole 2. The steel material S comes into contact with the horizontal contact surface 13c of the guide stopper 13 and the guide stopper 13 slides obliquely upward to escape.
The steel material S is adsorbed by the magnetic pole 2 without causing any obstacle, and is transported in this state.

In the above embodiment, the guide stopper having a rectangular cross section is shown. However, in the present invention, the cross sectional shape of the guide stopper is not limited.

[0012]

According to the present invention, the lower end of the guide stopper having the slide structure is located at the center in the width direction of each side surface in the longitudinal direction of the magnet body, and the guide stopper is attached to the side surface at an angle. Therefore, at the time of the reversing work of the steel material, the guide stopper can position the end of the steel material serving as the reversal center, and the guide stopper slides obliquely upward during the reversal of the steel material. At the same time, when the steel material is transported, the guide stopper is slid obliquely upward when the steel material approaches the magnetic pole, so that the guide stopper does not become an obstacle and the steel material can be transported without any trouble. In addition, since the reversing work of the steel material is performed at the center of the magnetic pole, the work balance is good, and in addition, since the center of the magnetic pole has the largest attraction force, the reliability of the work is improved. Increase.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a lifting electromagnet M according to the present invention.

FIG. 2 is a partial front view of the same.

FIG. 3 is a side view showing the reversing operation of the steel material S.

FIG. 4 is a side view showing the work of transporting the steel S.

FIG. 5 is a partial perspective view of a conventional lifting electromagnet M '.

FIG. 6 is a side view showing the work of transporting the steel S ′.

[Explanation of symbols]

 M: lifting electromagnet S: steel material 1: magnet body 2: magnetic pole 13: guide stopper 13b: vertical contact surface 13c: horizontal contact surface

Claims (2)

(57) [Scope of request for utility model registration] A magnet pole is provided at a lower portion of a magnet body which is a yoke, and a guide stopper for positioning a steel material as a suspended object is provided on each side surface at both ends in a longitudinal direction of the magnet body. In the mounted lifting electromagnet, the guide stopper is characterized in that the lower end of the guide stopper having a slide structure is located at the center in the width direction of each side surface, and the guide stopper is mounted on the side surface at an angle. Lifting electromagnet. 2. A lifting electromagnet having a guide stopper according to claim 1, wherein a vertical contact surface and a horizontal contact surface are formed at a lower end portion of the guide stopper.