JPH05172559A - Automatically measuring apparatus for plate width of hot coil - Google Patents

Abstract

PURPOSE:To enable measurement of the plate width of a hot coil per roll accurately and in a short time by moving a pair of rollers among both end faces of the hot coil to detect and compute a horizontally moving distance of the rollers. CONSTITUTION:A hot coil 1 is placed at the center of a frame base 2 with an axis line with thereof made horizontal and a distance detector 4 is lowered with a motor 8 continuously along the diametrical direction from the top of both end faces of the coil 1 through a screw 10 and a female thread 11. A pair of rollers is at the tip of an arm 14 inserted into a cylinder 12 through a coil spring and moves horizontally to the left or right. The one pair of rollers lowers along rugged end faces per roll of the coil synchronizing each other and hence, a pair of sensors 15 outputs an electrical signal to an arithmetic device 6 indicating a moving distance from a reference point of the rollers 3. The arithmetic device 6 computes the plate width of the coil based on the electrical signal to display the results of computation on a display device 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot coil automatic plate width measuring device, and more particularly to a hot coil automatic plate width measuring device capable of easily and quickly measuring the plate width of each hot coil. It relates to the device.

[0002]

2. Description of the Related Art Conventionally, the width of a rolled steel sheet is measured when the steel sheet is wound into a coil. However, if the width is not measured for some reason, the coil is temporarily rewound by a rewinding machine. The plate width was measured after rewinding.
On the other hand, if one coil end face is aligned without being rewound, the plate width of the entire steel plate can be estimated by measuring the width of the outer peripheral end and the width of the inner peripheral end of the coil.

[0003]

However, according to the former method described above, it takes a lot of time to measure the strip width,
On the other hand, according to the latter method, when one of the coil end faces is not aligned, it is difficult to estimate the plate width of the entire steel plate. Therefore, the present invention is to provide an automatic plate width measuring device for a hot coil capable of accurately and quickly measuring the plate width of the hot coil for each winding of the coil.

[0004]

SUMMARY OF THE INVENTION According to the present invention, a gantry installed outside a hot coil placed with its axis lined horizontally and on both end faces of the hot coil along the radial direction of the hot coil. From the pair of distance detectors, a pair of distance detectors each having a horizontally movable roller that rolls, a drive unit for moving the pair of distance detectors up and down in synchronization with each other, and the pair of distance detectors. And a calculator for calculating the plate width of the hot coil for each winding of the hot coil.

Next, one embodiment of the automatic coil width measuring device for hot coils according to the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an embodiment of an automatic plate width measuring device for a hot coil of the present invention, and FIG. 2 is an AA line of FIG.
3 is a partially enlarged sectional view of FIG. Figure 1
As shown in FIG. 3, an automatic plate width measuring device for a hot coil according to the present invention includes a saddle type pedestal 2 installed outside the hot coil 1 placed with its axis lined horizontally, and a hot coil 1. A pair of distance detectors 4 each having a horizontally movable roller 3 rolling along the radial direction of the hot coil 1 on both end surfaces and a pair of distance detectors 4 are synchronized with each other along the pedestal 2. Driving means 5 for moving up and down, a calculator 6 for calculating the plate width of the hot coil 1 for each coil based on electric signals from the pair of distance detectors 4, and a calculator 6 And a display 7 for displaying the width measurement result of the coil 1.

The drive means 5 is, as shown in FIG.
A motor 8 provided above, a pair of gear boxes 9 provided on both ends of the gantry 2, and a screw shaft 10 vertically attached to each of the pair of gear boxes 9 through the gantry 2.
It consists of The rotation of the motor 8 is transmitted to the screw shaft 10 via the gear box 9, and the pair of screw shafts 10 rotate at the same speed.

The distance detector 4 includes a female screw 11 which is screwed onto a screw shaft 9 of a driving means 5, a cylinder 12 which is horizontally fixed to the female screw 11 through a gap 2A of a pedestal 2, and inside the cylinder 12. The arm 14 inserted through the coil spring 13 and the arm 14
And a sensor 15 such as a potentiometer for electrically detecting the horizontal movement distance of the roller 3 from the reference point, which is attached to the cylinder 12.

According to the present invention having the above structure,
According to the automatic hot coil plate width measuring device, the plate width of the hot coil is automatically measured for each coil winding as follows. The hot coil 1 is placed in the center of the gantry 2 with its axis being horizontal, and the motor 8 is driven to continuously lower the rollers 3 from the tops of both end surfaces of the hot coil 1 along the radial direction of the coil 1. Since the pair of rollers 3 synchronously descends along the concave and convex end faces of each coil, an electric signal indicating the moving distance of each roller 3 from the reference point is sent to the calculator 6 from the pair of sensors 15. Is output. The calculator 6 calculates the plate width of the coil 1 for each winding of the coil based on the electric signals from the pair of sensors 15, and the calculation result is displayed on the display 7. In this way, the plate width of the coil 1 is automatically measured for each coil winding 1A, 1B, 1C ---.

[0009]

As described above, according to the present invention, the roller is moved along both end surfaces of the hot coil,
By detecting the horizontal movement distance of the roller by the sensor, a useful effect that the plate width of the coil can be accurately measured in each coil winding in a short time is brought about.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of an automatic plate width measuring device for hot coils according to the present invention.

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

FIG. 3 is a partially enlarged sectional view of FIG.

[Explanation of symbols]

 1: hot coil, 2: mount, 3: roller, 4: distance detector, 5: driving means, 6: calculator, 7: display, 8: motor, 9: gear box, 10: screw shaft, 11: Female screw, 12: Cylinder, 13: Coil spring, 14: Arm, 15: Sensor.

Claims (1)

[Claims] 1. A pedestal installed outside a hot coil placed with its axis horizontal, and movable in the horizontal direction rolling along the radial direction of the hot coil on both end faces of the hot coil. A pair of distance detectors with different rollers,
Driving means for vertically moving the pair of distance detectors along the gantry in synchronization with each other, and a plate width of the hot coil is calculated for each winding of the coil based on electric signals from the pair of distance detectors. An automatic plate width measuring device for a hot coil, comprising: