JPH06126319A - Transferring device for steel sheet - Google Patents

Abstract

PURPOSE:To provide a device which can transfer a steel sheet while the steel sheet is prevented from making an oblique motion by a simple device and the transferred position of the steel sheet is controlled to an arbitrary position on table rollers. CONSTITUTION:Pinch rolls 3a, 3b are installed on the table rollers 1 for transferring the steel sheet and the oblique motion of the steel sheet 2 is prevented with a simple device by forming an angle between the rotary axis of the transferring roller and that of the pinch roll. Position detecting sensors 6a, 6b for the width direction of the steel sheet are provided under the pinch rolls on the table rollers and the angles of these pinch rolls are changed arbitrarily to control the running position and the direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel plate conveying device,
Specifically, it relates to a transport device for transporting steel plates in a steel plate manufacturing facility.

[0002]

2. Description of the Related Art Generally, when a steel plate is conveyed by a table roller in a steel plate manufacturing facility, a roller by the conveyance of the steel plate is used.
The skew of the steel sheet occurs due to the uneven wear of the roller or the installation accuracy (tilt, etc.) of the roller.

A steel plate with a magnet is attached to the skewed roller.
Method of correcting the skew of the steel sheet by using a ruler, a width direction guide, a pillar crane, or the like, or a table roller is skewed at an angle of several degrees with respect to the traveling direction of the steel sheet. -A method of preventing skewing by conveying a steel plate while pressing it against a guide provided at one end of a bull roller, and
In a plate rolling method using a rolling facility, which is provided with a horizontal rolling mill and a vertical rolling mill that is close to the horizontal rolling mill and has a roller for suppressing a dock bone and a center roller for preventing buckling. , A camber meter for measuring the camber (lateral bending) of the rolled material, and a dock bon presser for vertically pressing the widthwise end of the rolled material provided on the vertical rolling mill based on the measured value of the camber meter Buckling prevention center that supports the roller and the widthwise middle part of the rolled material up and down
The axis of the roller is tilted in the horizontal plane with respect to the rolling direction,
There is known a method of correcting the camber of the rolled material by directly biting the rolled material into the horizontal rolling mill by this tilting (Japanese Patent Laid-Open No. 61-176413).

However, as in the conventional method, a magnet-attached roller is used.
The method using a ruler, a pile crane, a width direction guide, or a method for correcting the above-mentioned rolled material camber requires a space for introducing equipment and is expensive. Further, in the method using the piler crane, it is necessary to stop the steel plate, which causes a problem that work efficiency is lowered.

Further, the method of skewing the table roller with respect to the traveling direction of the steel sheet is expensive in terms of modification, and the traveling position of the conveying material is only in one direction of the table end,
It is impossible to drive in any position. For this reason, a table roller is used with an unattended automatic crane.
When suspending the steel material from the above, it is necessary to suspend the center of the steel material in the width direction, and it is necessary to control the position of the crane according to the width of the conveyed material.

[0006]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned problems, and is, specifically, a relatively inexpensive facility, which is not restricted by a space and which reduces the stripping efficiency of a steel sheet. It is an object of the present invention to propose a steel plate transporting device capable of preventing skewing by transporting a table roller without carrying it.

[0007]

SUMMARY OF THE INVENTION That is, the present invention relates to a facility for transporting a steel sheet by a table roller, in which the transport roller is used.
By providing a plurality of pinch rolls on a part of the roller and by providing an angle on the rotation axes of the transport roller and the pinch roll, a force in a direction perpendicular to the traveling direction of the steel plate is applied when the steel plate is transported. The steel plate is constructed so as to go straight toward one end of the table roller, and a width direction position detection sensor for the steel plate is provided below the pinch roll to determine the angle of the pinch roll. Is arbitrarily changed to control the traveling position and direction.

The structure and operation of the means of the present invention will be described below.

[0009]

According to the present invention, a plurality of pinch rolls are provided on at least a part of the conveying roller table of the steel sheet, and the conveying roller and the pinch roll have an angle of rotation. As a result, a force in a direction perpendicular to the traveling direction of the steel sheet is generated when the steel sheet is conveyed, and the steel sheet can be moved straight along the guide of the table roller. Further, if the angle of the upstream and downstream pinch rolls is controlled by using the traveling position detection sensor of the steel sheet, the rotational movement and the widthwise movement of the steel sheet can be arbitrarily corrected.

The present invention will be described in detail below with reference to the drawings.

FIG. 1 is a plan view showing an example of an apparatus used for carrying out the present invention, FIG. 2 is a transverse sectional view taken along the line AA 'in FIG. 1, and FIG. 3 is an apparatus of the present invention. 4 is an explanatory diagram showing the principle of the device of the present invention, FIG. 4 is an explanatory diagram showing the relationship between the pinch roll pressing force and the theory of action on the steel plate, and FIG. 5 is the control flow chart of the device of the present invention. FIG. 6 is an explanatory diagram showing the principle when the steel material is translated by the device of the present invention, and FIG. 7 is an explanatory diagram showing the principle when the steel plate is rotated by the device of the present invention.

First, as shown in FIGS. 1 and 2, in the apparatus of the present invention, a pinch roll 3 which is angled with respect to the traveling direction of the steel plate 2 is attached to the upper portion of a steel plate conveying table roller-1. Since the pinch-roll pressing spring 5 conveys the steel plate 2 while pressing it, the steel plate 2 is supported by the table roll.
Since the force in the axial direction of the la-1 can be applied, the steel plate 2 can be moved straight along the table guide 6. Therefore, it is possible to prevent the steel sheet from skewing.

Next, the principle of the apparatus of the present invention shown in FIGS. 3 and 4 will be described.

Where W is the weight of the steel plate W _{P is the} pinch roll pressing force μ _{P is} the friction coefficient between the steel plate and the pinch roll μ _{T is} the friction coefficient between the steel plate and the table roller. At this time, the frictional force F _P (FIG. 3) in the Y direction given to the steel plate 2 by the pinch roll 3 is: F _P = μ _P W _P Also, the steel plate 2 and the table roller-1 which are acted by F _P
The friction reaction force F _T between them is F _T = μ _T (W + W _P ). Here, by using a rubber pinch roll 3 such that μ _P >> μ _T , there exists an appropriate pinch roll pressing force W _P such that F _P > F _T (FIG. 4). . At this time, as shown in FIG. 5, upstream and downstream pinch rolls 3
The width direction position detection sensors 6a and 6b of the steel plates may be attached to the lower portions of a and 3b, respectively, and the angles of the pinch rolls 3a and 3b may be controlled so as to become the width direction position targets of the steel plates.

Next, referring to FIG. 6, the principle of parallel displacement of the steel sheet ΔY in the width direction will be explained.
In order to make the ΔY parallel movement in the width direction by passing only in the X direction, the pinch roll angle θ becomes as shown in equation 1, and the time t for passing with the angle θ becomes as shown in equation 2 when the passing speed is V. Like

[0016]

[Equation 1]

[0017]

[Equation 2]

In FIG. 7, the steel plate is rotated. That is, it is an explanatory view showing the principle of correcting skew, and when there is skew of ΔY 'between upstream and downstream pinch rolls 3a and 3b (ΔY' is detected by a sensor), It is necessary to move the pinch roll 3b in the width direction relative to the upstream pinch roll 3a by ΔY 'with the conveying material. If you leave the angle θa of Le 3a is a 0, the downstream Pinchiro - - this time upstream Pinchiro angle theta _b Le 3b is as few 3 when passing the steel sheet in the X direction by .DELTA.l.

[0019]

[Equation 3]

Further, the steel sheet is moved in parallel ΔY and rotationally moved ΔY '.
If both are to be performed at the same time, the number 1 and the number 3 are changed to the number 4
become that way.

[0021]

[Equation 4]

In the actual control, a slip in the width direction between the pinch roll and the steel sheet occurs, so that the method of feeding back by the control shown in FIG. 5 improves accuracy.

[0023]

As described in detail above, the present invention is
In equipment for transporting steel plates by a table roller, a plurality of pinch rolls should be provided on a part of the transport roller, and an angle should be provided between the transport roller and the rotation axis of the pinch roll. According to the present invention, a force is applied in a direction perpendicular to the traveling direction of the steel sheet when the steel sheet is conveyed, and the steel sheet is configured to move straight toward the one end of the table roller.
In the device described above, a width direction position detection sensor for a steel plate is provided below a plurality of pinch rolls on a table roller, and the running position and direction are controlled by arbitrarily changing the angle of the pinch rolls. It is characterized by

In the present invention, a pinch roll is installed on a table roller that conveys a steel plate, and the table roller is installed.
Since the steel plate is conveyed along the guide at one end of the above, the skew of the steel plate can be prevented. In addition, a pinch roll is provided on the table roller that conveys the steel plate,
Since the position detection sensor of the steel material is used to control the position of the steel material in the width direction, it is possible to pass the steel plate at any position in the width direction on the table roller while correcting skew. Became. The device of the present invention has an excellent effect that the construction cost is low and the construction period is short.

[Brief description of drawings]

FIG. 1 is a plan view showing an example of an apparatus used for carrying out the present invention.

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

FIG. 3 is a plan view showing the principle of the device of the present invention.

FIG. 4 is an explanatory diagram showing the relationship between the pinch roll pressing force and the force acting on the steel plate, which shows the principle of the device of the present invention.

FIG. 5 is a control flow chart of the apparatus of the present invention.

FIG. 6 is an explanatory diagram showing the principle when a steel material is translated in parallel by the apparatus of the present invention.

FIG. 7 is an explanatory diagram showing the principle of rotating a steel sheet by the device of the present invention.

[Explanation of symbols]

1 Table Roller 2 Steel Plate 3 Pin Chill Roll 3a Pin Chill Roll 3b Pin Chill Roll 4a Pin Chill Roll Rotating Device 4b Pin Chill Roll Rotating Device 5 Pin Chill Roll Pressing Spring 6a Width Direction Position Detection Sensor 6b Width Direction Position Detection Sensor 31 Pinch-roll fixed frame 32 Pinch-roll fixed frame l _X Table Roller conveys the steel plate in the line direction (X) Length l _P Length where the pinch roll contacts the steel plate l _Y Pinchiro - steel sheet by Le Te - Bururo - length F _P Pinchiro conveys La axial (Y) - frictional force F _T steel sheet le gives the steel sheet by receiving force F _P in the Y direction Friction reaction force generated between the table roller and steel plate

Claims (2)

[Claims] 1. A facility for transporting a steel plate by a table roller, wherein a plurality of pinch rolls are provided on a part of the transport roller, and the transport roller and the pinch roll are provided. By providing an angle on the rotating shaft, a force perpendicular to the traveling direction of the steel plate is applied when the steel plate is conveyed, and the steel plate is configured to move straight in the vicinity of one end of the table roller. Steel plate transport device. 2. The apparatus according to claim 1, wherein a width direction position detection sensor for a steel plate is provided below a plurality of pinch rolls on the table roller, and the angle of the pinch rolls is arbitrarily changed to travel. A steel plate conveying device characterized in that the position and direction are controlled.