JPH0741281A - Motor-driven coil hoisting accessory with center dislocation detecting device - Google Patents

Abstract

PURPOSE:To detect the dislocation state of a motor-driven coil hoisting accessory against respective centers in the width direction and in the radial direction of a coil correctly and quickly at grasping the coil by fitting disclike coil position detecting plates along the opening/closing legs of the motor-driven coil hoisting accessory vertically movably and rotatably. CONSTITUTION:Respective pairs of disc-like coil position detecting plates 4 are respectively fitted to a pair of opposed opening/closing legs 3 provided on the horizontal beam 2 of a coil hoisting accessory vertically movably and rotatably. When the coil hoisting accessory is lowered and a coil 1 is grasped, the coil position detecting plates 4 are contacted with the coil 1, and when the detecting plates 4 are moved vertically and/or rotated, the displacement is detected by means of vertical position sensors 7 and rotation sensors 6. From the detected results, dislocation of the center of the coil hoisting accessory against the center of the coil, and the contacted state of the coil hoisting accessory with the outside the coil are judged, and the results are informed to an operator. From the displacement state of the coil position detecting plates 4 of the each leg 3, the dislocation of the coil hoisting accessory against the center of the coil diameter is detected.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric coil suspension, and more particularly to a device for easily detecting the deviation between the center of the steel strip coil and the center of the electric coil suspension when the steel strip coil or the like is conveyed. It is equipped with.

[0002]

2. Description of the Related Art Generally, when a steel strip coil or the like is transported, it is necessary to center the center of the transported coil and the center of the electric coil suspension when suspending. By the way, as the centering method, the conventional method is to follow the guidance signal of a ground signaler, and the light from a light-projecting center marker installed on the crane is matched to a mark written in advance near the coil storage area on the ground. There is known a method, or a method in which a crane is provided with a position detection device, a lot number of a coil storage place on the ground is determined in advance, and the current position of the crane is detected with respect to a lot number of the coil storage place to adjust them.

[0003]

Among the above-mentioned conventional methods, the method according to the guidance signal of the signaler on the ground requires a ground worker in addition to the crane operator.
With the flood-lighting center marker method, it is not possible to align at a place where no mark is written on the ground. The method of detecting the position of the coil storage space has drawbacks in that it cannot be adjusted in a place where the lot number is not managed, and the equipment cost of the position detection device increases.

The object of the present invention is to overcome the drawbacks of each of the above-mentioned prior arts, to eliminate the need for induction cues, to perform center alignment anywhere, and to further provide a coil lot number position detecting device. It is an object of the present invention to propose an electric coil suspension including a center deviation detecting device that effectively operates to accurately and quickly perform coil conveyance without performing the above.

[0005]

As a result of earnest research to achieve the above object, the inventors of the present invention have installed a center deviation detecting device between the center of the suspension and the center of the coil in the electric coil suspension main body. It is effective to do this by moving up and down on both sides of each of a pair of open / close legs provided facing each other for lifting the coil, via vertical movement guides fixed to the open / close legs, and A disc-shaped coil position detection plate rotatably mounted, a rotation sensor for detecting the rotation angle of the coil position detection plate, and a position sensor for detecting the vertical position of the coil position detection plate are mounted on the electric coil suspension. We came to the conclusion that it was necessary to place it on the body of the tool,
The present invention has been developed according to the following gist configuration. That is, the present invention provides an electric coil suspension for conveying a steel strip coil or the like, which comprises a pair of opposing open / close legs suspended and supported by a horizontal beam, wherein each of the open / close legs has its both side surfaces, A vertically moving guide having a long hole window is fixed, and a vertically movable detection plate fixing shaft housed in the window is attached to the guide, and the guide plate is positioned on both side portions of the opening and closing legs. A rotatable disk-shaped coil position detection plate is fixed to one outer end of each of the vertically moving detection plate mounting shafts, and the rotation angle of the coil position detection plate is further detected on the detection plate mounting shaft. A center sensor characterized in that a rotation sensor is attached, and a position sensor for detecting the vertical position of the coil position detection plate fixed along the vertical movement guide is disposed on both side surfaces of the opening / closing leg. With detector That electric coil slings, is.

[0006]

With regard to the electric coil suspension according to the present invention, a disc-shaped coil position detection plate and a coil position detection plate attached to the main body so as to be vertically movable and rotatable along the opening and closing legs of the electric coil suspension. Since a center deviation detection device composed of a rotation sensor that detects a rotation angle and a position sensor that detects the upper and lower positions of the coil position detection plate is mounted, it is possible to grasp the transported coil with the electric coil suspension device. , It is possible to accurately and quickly detect the deviation of the center of the electric coil suspension from the widthwise and diametrical centers of the coil to be transported, so that the steel strip coil or the like can be transported smoothly. Become.

[0007]

EXAMPLE An example of the embodiment of the electric coil suspension according to the present invention will be described below. FIG. 1 is a front view of an electric coil suspension according to the present invention equipped with a center deviation detecting device, and FIG. 2 is a sectional view taken along the line AA ′ of FIG. In the figure, 1 is a coil to be transported, 2 is a horizontal beam of a coil suspension tool, 3 is an opening / closing leg of the coil suspension tool, 4 is a coil position detection plate,
Reference numeral 5 is a coil position detecting plate mounting shaft, 6 is a coil position detecting rotation sensor, 7 is a coil position detecting plate vertical position sensor, and 8 is a vertical movement guide. Here, as the horizontal beam 2 and the opening / closing legs 3, those having a structure known in the existing electric coil suspension can be used.

FIG. 3 is an explanatory view showing the situation of center deviation detection in the coil width direction. In the illustrated example, the center of the coil 1 is displaced to the right with respect to the center of the coil suspension, and the coil position detection plate 4 attached to the right and left leg 3 is in contact with the coil 1. As a result, the coil position detection plate 4 rotates clockwise and is pushed upward.

FIG. 4 is an explanatory view showing a situation in which the coil position detecting plate 4 detects this by contacting the coil when the transported coil 1 is located outside the coil suspension. Is. In this case, the coil position detection plate 4 rotates counterclockwise and is pushed upward. This displacement is detected by the coil position detection rotation sensor 6 and the coil position detection plate vertical position sensor 7, and the center of the coil suspending tool is displaced from the center of the coil, and the coil suspending tool is likely to come into contact with the outer coil. It is configured so that the crane operator can be notified of the status by the output of an indicator light or an alarm.

FIG. 5 is an explanatory view showing the situation of center deviation detection in the coil diameter direction. The center of the coil 1 in the diametrical direction is displaced to the right with respect to the center of the coil suspension, and only the coil position detection plate 4 on the right side of the coil position detection plates 4 attached to the opening / closing legs 3 contacts the coil 1. The right coil position detection plate 4 is pushed upward and is rotated counterclockwise or clockwise, so that it is possible to detect that the center of the coil suspension is displaced from the center of the coil diameter direction. In addition, FIG. 6 shows a state in which the coil is grasped,
The coil position detection plate 4 is pushed up by the upper surface of the coil 1 and moves upward to the position shown in the figure.

[0011]

As described above, according to the present invention,
When gripping the transported coil with the electric coil suspension, it is possible to accurately and promptly detect the shift state of the center of the electrical coil suspension with respect to the center of each of the transported coil in the width direction and the diameter direction. Further, in the case of the electric coil suspension according to the present invention, it becomes possible to accurately detect the position of the coil located outside the suspension. Therefore, according to the present invention, the center can be adjusted regardless of where the coil is located without the guidance signal of the signaler on the ground, and the light emitting type center marker, the crane, and the position detecting device for the coil lot number are unnecessary. .

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an explanatory diagram of a detection situation of center deviation in the coil width direction.

FIG. 4 is an explanatory diagram of a situation in which the position of a coil located outside the coil suspension is being detected.

FIG. 5 is an explanatory view of a detection situation of a center deviation in a coil diameter direction.

FIG. 6 is an explanatory view of a state where a coil is gripped.

[Explanation of symbols]

 1 Coil to be transferred 2 Horizontal beam of coil suspension tool 3 Opening / closing leg of coil suspension tool 4 Coil position detection plate 5 Coil position detection plate mounting axis 6 Coil position detection plate rotation sensor 7 Coil position detection plate vertical position sensor 8 Vertical movement guide

Claims (1)

[Claims] 1. An electric coil suspension for conveying a steel strip coil or the like, which comprises a pair of opposed open / close legs suspended and supported by a horizontal beam, wherein each of the open / close legs has a long side. A vertically moving guide having a hole-shaped window hole is fixed, and a vertically movable detection plate fixing shaft housed in the window hole is attached to this guide, and the detecting plate fixing shaft is positioned at both side portions of the opening and closing legs to move vertically. A rotatable disc-shaped coil position detection plate is fixed to one outer end of each moving detection plate mounting shaft, and the rotation angle of the coil position detection plate is further detected on the detection plate mounting shaft. A center sensor characterized in that a rotation sensor is attached, and a position sensor for detecting the vertical position of the coil position detection plate fixed along the vertical movement guide is disposed on both side surfaces of the opening / closing leg. With detection device Electric coil hanger.