JPS62197219A - Automatic collecting device for coil test piece - Google Patents

Abstract

PURPOSE:To automate and to contrive to save labor in the work collecting a test piece from a coil end part by providing the traversing device moving the magnet which attracts the coil end part and a burner in the coil width direction on the tip part of a manipulator. CONSTITUTION:A magnet 13 is positioned at the coil end part by operating the arm 12 of a manipulator 11 after removing the binding band by placing a strip steel coil 1 on a cradle roller 2. An end plate 16 is cut off by traversing a burner 14 in the width direction of the coil 1 by operating a traversing device 15 after holding the end plate 16 of the coil 1 attracted by energizing a magnet 13 horizontally. Thereafter, the manipulator 11 cuts down a test piece 19 after reattracting the end part 16 to the magnet 18 by moving the end plate 16 attracted to the magnet 13 onto a cut base 17. In this way the work of collecting the test piece from the end part of the steel strip coil can be automated and labor-saved.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an automatic coil test piece sampling device.

More particularly, the present invention relates to an apparatus for automatically taking test specimens of predetermined dimensions from coils of hot-rolled steel sheets.

BACKGROUND OF THE INVENTION When manufacturing hot rolled steel sheets, a test piece is taken from the end of each coil or lot and subjected to various mechanical tests to confirm its mechanical properties.

Collection of such test pieces was generally performed manually.

A conventional test sampling method will be explained with reference to FIG. First, a hot coil 1 wound up by a coiler on a hot rolling line is placed on a pair of cradle rollers 2 as shown in FIG. 4 while being conveyed to the next process. Cut the binding band (not shown) of the coil on the cradle roller 2.

In this state, an operator opens the end 3 of the coil and cuts it along the cutting line 4 with a gas cutter 5. As described above, the conventional test piece collection method is entirely manual and extremely complicated.

Problems to be Solved by the Invention As mentioned above, the conventional method for collecting test specimens from steel strip coils is completely manual, and in the case of hot-rolled steel sheets, the thickness is from 1.2 mm to 25 mm. Since the length reaches 4 mm, the weight of the end plate to be cut can reach up to 200 kg.

Therefore, this work is not only heavy-duty work but also dangerous work.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to automate the collection of test pieces from a coil of steel strip by a machine, thereby saving labor and eliminating or reducing dangerous work.

More specifically, the present invention provides for holding the ends of a steel strip coil;
It is an object of the present invention to provide an automatic test piece collecting device that completely automates the operation of cutting the test piece using a burner.

Means for Solving the Problems In order to achieve the above object, the present invention provides an automatic test piece collecting device that automatically cuts the end of a coil of a steel strip to collect a test piece. a manipulator that can approach, move away from, and rotate; a magnet that is attached to the tip of the arm of the manipulator crake and that can be attached to and detached from the end of the coil as appropriate; and a coil plate width that is provided at the tip of the manipulator. An automatic coil test piece collecting device is provided, comprising a traversing device movable in a direction, and a coil end cutter attached to the traversing device.

Last month, by using the automatic coil specimen collection device of the present invention, the device also holds the coil end while cutting the specimen, and the burner traverses the end that is partially unwound from the coil. It can be cut automatically. in this way,
This test piece collection work does not require manual intervention, making it possible to achieve significant labor savings and safety.

The present invention will be explained below using examples.

Embodiment FIG. 1 is a schematic diagram of an automatic coil test piece collecting device according to an embodiment of the present invention. As shown in the figure, the coil test piece automatic sampling device of the present invention is comprised of a manipulator 11 placed near a hot coil 1 mounted on a cradle roller 2 consisting of a pair of rolls. A magnet 13 and a burner 14 are provided at the tip of the arm 12 of the manipulator 11. In particular, the arm 12a supporting the burner 14 is rotatable and assumes a cutting position shown in FIG. 1 and a retracted position in which the arm 12a rotates.

More specifically, the burner 14 is mounted on the arm 12a via a known traversing device 15. Since the traversing device 15 itself is well known, detailed explanation thereof will be omitted.

These manipulator 11, magnet 13, burner 14, and traversing device 15 are connected to and controlled by a controller and a process computer or minicomputer (not shown).

The operation of the automatic coil test piece sampling device of the present invention will be explained below.

First, a steel plate is wound into a coil in a hot rolling process, and then placed on a cradle roller 2 by an appropriate means such as an overhead crane. Rotation of the cradle roller 2 rotates it into the appropriate position for cutting the end plate from the coil 1. Next, the binding band is cut, and the sample number of the test piece is marked with chalk or the like. The above work may be performed manually by a worker.

However, the binding band may be cut by detecting the position of the binding pad and automatically operating the cutter as shown in FIG.

FIG. 3 is a schematic diagram of a device for automatically detecting the position of a cable tie. A head 23 biased by a spring or the like, and a microswitch 24 that detects the vertical movement of the head.
It consists of Since the binding band 25 has a thickness of about 0.9 mm, when the support block 22 is moved on the outer periphery of the coil 1, the head 23 rides on the binding band 25, turning on the microswitch 24. In this way, the position of the binding hand 25 is adjusted to KM nll, and the binding band 25 is cut using a cutter (not shown).

Referring again to FIG. 1, the operation of the automatic coil test piece collecting device of the present invention will be explained. The end of the coil 1 from which the binding band has been cut and removed is opened as shown by the dashed line in FIG. It has a shape. Arm 12 of manipulator 11
By operating the magnet 13, the magnet 13 is positioned near the end of the coil 1, and the magnet 13 is biased to attract the end of the coil to the magnet. In this way, as shown in FIG. 1, the end of the coil is held horizontally by the magnet 13. Next, the traversing device 15 is operated to traverse the burner 14 in the width direction of the coil to cut off the end plate 16.

While the end plate 16 is being attracted to the magnet 13, the arm 12 of the manipulator 11 is operated to move the end plate 16 onto the cutting table 17 shown in FIG. In this state, when the magnet 13 at the tip of the manipulator is deenergized, the end plate 16
is the cutting table 1 to which the magnet 18 for fixing the end plate is attached.
7, the test piece 19 is cut by a gas cutter (not shown), and the test piece 19 is placed in a sample bag. Meanwhile, the remaining end plate 16' is placed in a scrap pit. These specimens 19 and the remaining end plates 16'
The movement may be carried out using the manipulator 11 or another manipulator equipped with a magnet.

Effects of the invention Conventionally, collecting test specimens from hot-rolled steel sheets was laborious work;
For safety reasons, the work was carried out by two workers. However, by adopting the automatic coil test piece collection device according to the present invention, the manual work required by the worker is reduced to light work such as positioning the cut of the coil on the cradle car, processing the cable ties, and marking, and only one person is required. ,
This makes work safer and saves labor.

In addition, by using the coil test piece automatic collection device of the present invention as well as already developed cable band cutting machines, automatic coil binding machines, and automatic marking devices, the collection of test pieces can be completely automated.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of an automatic coil test piece collecting device according to an embodiment of the present invention, and FIG. 2 shows how a test piece is cut from an end plate cut from a coil by the automatic coil test piece collecting device of the present invention. FIG. 3 is a schematic diagram of a device for detecting the position of a cable tie on a coil, and FIG. 4 is a diagram schematically showing a conventional method of manually collecting a test piece from a coil. (Main reference numbers) 1...Hot coil, 2...Cradle roller, 3...
Coil end, 4... Cutting wire, 5... Gas cutter, 11... Manipulator, 12...
Arm, 12a...Arm at the tip, 13...Magnet, 14...Burner, 15...Transverse device, 1
6... End plate, 17... Cutting table, 18... End plate fixing magnet,

Claims (1)

[Claims] This is an automatic test piece collection device that automatically cuts the end of a coil of a steel strip to collect a test piece, and includes a manipulator that can approach, move away from, and rotate the steel strip coil, and a manipulator that is attached to the tip of the arm of the manipulator. Further, a magnet that can be appropriately attracted to and detached from the end of the coil, a traversing device provided at the tip of the manipulator and movable in the width direction of the coil plate, and a coil end cutter attached to the traversing device. An automatic coil test piece collecting device comprising: