JPH05309417A - Mark sheet sticking device - Google Patents

Abstract

PURPOSE:To display an accurate position by sticking a mark sheet to the surface near a flaw part of a metal wire through static current when the flaw part passes a coiling part by an abnormal signal from a flaw detector for a metal wire used in a coiling line of the metal wire. CONSTITUTION:The mark sheet is stuck by the abnormal signal from the flaw detector 4 for the metal wire used in the coiling line of the metal wire 3 to the metallic surface of the coiled part of the flaw part to display the flaw part. A marker head A provided with a static current generator and holding a mark sheet is equipped on the tip of a piston of a cylinder 6 holding the marker head, the head is advanced by a signal and when the flaw part of the metal wire passes through the coiled part, the mark sheet is stuck by the static current to the surface of the metal wire. A marker cylinder is provided with a follow up mechanism which detects change of a stuck position by the swell of the reel after it is coiled and the timing to stick the mark sheet is corrected according to the speed of the coiling line.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wound portion of a metal strip when the wound portion passes through the winding portion due to an abnormal signal from a metal strip flaw detector used in a coil winding line for the metal strip. The present invention relates to a scratch mark sheet sticking device for a metal strip that sticks a mark sheet to a surface in the vicinity by using static electricity.

[0002]

2. Description of the Related Art Conventionally, in a coil winding line for a metal strip, when a scratch on the metal strip is found during winding of the coiling reel, a length of about 20 cm which is a mark held by an operator The paper piece, i.e., the mark sheet, was inserted into the winding coil when the wound portion of the metal strip was wound. However, with this method, it is difficult to insert the mark sheet held by the worker in the wound portion of the scratched portion of the metal strip accurately, and especially when the winding coil speed is increased, it becomes more difficult work. Was becoming. In addition, it is very dangerous to insert the mark sheet held by the worker into the winding coil when the wound metal strip of the rotating winding coil as described above is wound up. From the viewpoint of safety, an automatic mark sheet insertion device was required.

Therefore, the applicant of the present invention has filed Japanese Patent Laid-Open No. 3-20411.
The mark sheet insertion device proposed in Japanese Patent No. 7 is known. This device cuts a roll paper into a predetermined length by an abnormal signal from a scratch detector of a metal strip used for a coil winding line of a metal strip, and inserts a head holding the cut mark sheet into an insertion cylinder. Attached to the tip of the piston, the head is moved forward by the signal, and the mark sheet is caught in the winding section when passing through the winding section. When a flaw or crack is found, the mark sheet is automatically inserted into the winding portion to display the flaw or crack in the wound coil.

[0004]

However, in the mark sheet inserting apparatus proposed in the above-mentioned Japanese Patent Laid-Open No. 3-204117, the head holding the mark sheet is moved forward, and the scratched portion of the metal strip passes through the winding portion. At this time, the mark sheet is caught in the winding section,
When the winding speed of the metal strip becomes high, the position of the metal strip becomes inaccurate, or the metal strip falls off without being caught securely, so there is a problem that the metal strip cannot be wound at a very high speed.

The present invention has been made in view of the above circumstances, and is an improvement of the mark sheet inserting device proposed in the above-mentioned Japanese Patent Laid-Open No. 3-204117 so that a metal strip is scratched in a coil winding line of the metal strip. It is an object of the present invention to provide a device that can reliably and automatically attach a mark sheet to a correct position even when it is wound at a high speed.

[0006]

Means for Solving the Problems As a result of various researches for achieving the above-mentioned object, the present inventor has found that in order to surely attach the mark sheet at an accurate position during winding at ultra-high speed, It was found that the electrostatically charged mark sheet can be surely attached by using the static electricity to shoot the electrostatically charged mark sheet toward the metal strip wound at an ultra high speed. Therefore, the present invention has been completed based on this finding, and a mark sheet is formed on the metal surface of the wound portion of the wound portion by an abnormal signal from the metal wound detector used for the coil winding line of the metal strip. In the mark sheet sticking device for sticking the mark sheet, a head equipped with a static electricity generating device and holding the mark sheet is attached to the piston tip of the marker cylinder, and the head is advanced by the signal, and the scratched portion of the metal strip is The mark sheet sticking device is characterized in that the mark sheet is stuck to the metal strip surface of the winding part by static electricity when passing through the winding part. It is equipped with a follow-up device that is activated by the signal of the sticking position detector to detect changes in the sticking position. And has is characterized in that it comprises a correction device for correcting the timing of attaching the mark sheet to the take-up part on the speed of the coiling line.

[0007]

Next, the operation of the present invention will be described. When a flaw detector detects a flaw on a metal strip during high-speed winding in a coil winding line for a metal strip, an abnormal signal from the flaw detector causes a marker. While the head support cylinder is operating and moving the head, the roll paper for mark sheet is cut into a predetermined length inside the head, and the head holding the cut mark sheet is wound exactly on the wound part. The mark sheet is charged with static electricity by the static electricity generator at the moment when the scratch on the metal strip comes closest to it, and the mark sheet is pushed out by the piston at the same time. It is sucked onto the surface and automatically applied. Further, during the winding work of the metal strip, the follow-up device is operated by the signal of the sticking position detector that constantly detects the change of the sticking position due to the thickening of the coiling reel to control the position of the supporting cylinder. Therefore, the proper sticking work of the mark sheet is always performed even during the ultra-high-speed winding work of the metal strip. In addition, since the static electricity to the mark sheet of the support cylinder and the static electricity generating device is corrected by the correction device according to the speed of the coil winding line, the correction timing corrects the mark sheet. It is attached and does not fall off.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a mark sheet sticking apparatus according to the present invention will be described below with reference to the drawings. 1 to 3 show this embodiment, and FIG. 1 shows one coiling reel 1
It shows a case where the metal strip 3 is wound around and is wound on the other coiling reel 2 in a tension state.

An optical detector 5 of a scratch detector 4 extends on the upper surface of the metal strip 3 in a direction perpendicular to the traveling direction of the metal strip 3, and the scratches on the metal strip 3 run by the detector 5 are caused. It constantly detects cracks and cracks. On the other hand, the support piston 7 of the marker head A is attached to the marker head support cylinder 6 which is similarly arranged at a right angle to the traveling direction of the metal strip 3.
Is slidably provided. A follow-up device (not shown) is built in the support piston 7.

The marker head A is, as shown in FIG. 2, a blade 9 for cutting the roll paper 8 housed in a rectangular main body into a predetermined length and the cut mark sheet (paper piece).
A pair of belts 11 and 1 for gripping and transporting 10 from above and below
2 and 2 are attached. The belt 11 is suspended by a large number of rollers 11a arranged in the main body, and the belt 12 is also suspended by a roller 12a, and the movement of these belts 11 and 12 is controlled by a motor 11b. The static electricity is emitted from the static electricity generating device 13 by the signal from the optical detector 5 of the scratch detector 4 to the mark sheet 10 which is conveyed to a predetermined position by the belt and stopped, and at the same time, the mark sheet pushing piston 14 is emitted. Thus, the mark sheet 10 is pushed out, and the mark sheet 10 is attached to the surface of the metal strip 3 wound around the tension reel 2 by the action of static electricity.

A sticking position detector (not shown) is arranged near the tension reel 2 to detect a change in the sticking position due to the winding of the tension reel 2 and send a signal to the follow-up device. It is sent to control the attachment position of the marker head A. Further, the speed of the metal strip 3 being wound up is detected by a correction device separately provided in the scratch detector 4, and the operation timing of the electrostatic discharge of the static electricity generating device 13 is corrected so as to match the winding speed. is doing.

The operation of this embodiment will be described below.
10 to 150 when wound by the tension reel 2
When a scratch or crack is found in the optical detector 5 of the scratch detector 4 on the metal strip 3 running at m / min, the scratch detector 4 transfers the static electricity to the static electricity generating device 13. An abnormal signal is sent, the piston 7 is caused to project at an appropriate timing according to the signal, and the marker head A provided at the tip of the abnormal signal is placed in the vicinity of the winding portion in which a defective portion such as a scratch or a crack of the metal strip 3 is caught. When approaching and passing the defective part,
At the same time that static electricity is emitted from the static electricity generator 13, the mark sheet pushing piston 14 causes the mark sheet 1 to move.
The mark sheet 0 is pushed out, and the mark sheet 10 is affixed to the surface of the metal strip 3 wound around the tension reel 2 with sparks scattered by the action of static electricity. As described above, according to this embodiment, the optical detector 5 detects defects such as scratches and cracks on the metal strip 3.
When it is discovered, the mark sheet can be automatically and safely attached to the corresponding portion by static electricity.

Further, even if the winding progresses and the tension reel 2 becomes thicker, and thus the sticking position changes, the follow-up device is activated by the signal from the sticking position detector (not shown) to stick the static electricity generating device 13 to the sticking device. Since the angles are sequentially controlled, the mark sheet can always be properly attached. When the metal strip 3 is completely wound around the tension reel 2, the piston portion 7 of the marker head A is replaced by the cylinder portion 6.
The static electricity generating device 13 can be retracted to the position of the chain double-dashed line in FIG. 1 by completely storing it inside, and completely retracted from the tension reel 2 on which the metal strip 3 has been wound.

[0014]

According to the present invention described above, when a flaw detector detects a flaw or a crack in a metal strip wound at high speed, the wound portion of the metal strip is automatically wound in the winding section. Since the mark sheet can be surely attached to the exact position on the surface, the position of the scratch or crack in the wound coil can be surely displayed, and static electricity is used to attach the mark sheet. Therefore, even if the winding speed of the metal strip is high, it can be securely attached to the correct position.
It will never fall out.

Further, since the follower device is provided even if the sticking position changes due to the winding thickness of the winding coil, it is possible to stick the mark sheet at a correct position at all times, and the mark sheet is wound by the correcting device. Since the timing of attaching the mark sheet to the take-up portion can be corrected according to the speed of the coil winding line, the mark sheet can be surely attached to an appropriate position at any speed of the coil winding line. Further, since the mark sheet can be automatically attached to the coil being wound, the effect of ensuring the safety of the operator is great.

[Brief description of drawings]

FIG. 1 is a perspective view of the present embodiment.

FIG. 2 is an explanatory diagram of a marker head of this embodiment.

FIG. 3 is a plan view of FIG.

[Explanation of symbols]

 1 Coiling reel 2 Coiling reel 3 Metal strip 4 Scratch detector 5 Optical detector 6 Marker head support cylinder 7 Support piston 8 Roll paper 9 Blade 10 Mark sheet 11, 12 Conveyor belt 13 Static electricity generator 14 Extrusion piston A Marker head

Claims (3)

[Claims] 1. A mark sheet sticking device for sticking a mark sheet on a metal surface of a wound portion of a wound portion by an abnormal signal from a metal wound detector used in a coil winding line for the metal sheet, wherein static electricity is generated. A head equipped with a device and holding a mark sheet is attached to a piston tip of a marker head supporting cylinder, the head is advanced by the signal, and when the scratched portion of the metal strip passes through the winding portion, A mark sheet sticking device, characterized in that the mark sheet is stuck to the metal strip surface of the winding portion by static electricity. 2. The marker head supporting cylinder is provided with a follow-up device which is operated by a signal from a sticking position detector for detecting a change in the sticking position due to the winding weight of the coiling reel. 1. The mark sheet sticking device according to 1. 3. The correction device according to claim 1, further comprising a correction device for correcting the timing of attaching the mark sheet to the winding portion according to the speed of the coil winding line. Mark sheet attachment device.