JPH08318313A - Device for taking out scrap in end part of strip - Google Patents

Abstract

PURPOSE: To provide a scrap taking-out device for rapidly and safely drawing out the coil-like scrap which is wound up. CONSTITUTION: A traveling truck 2 for dealing with the coil-like scrap which is wound around a reel is arranged so as to be horizontally movable for necessary approach to and separation from the reel and detaching from the rear of a line on which a strip coiler is provided and also a traverser 9 equipped with a binding mechanism for binding the coil-like scrap which is wound around the reel of the coiler and clamping mechanism 10 for gripping and holding the scrap after binding is mounted in the front end part of this traveling truck 2 so as to be traversing moved in the direction that the scrap is drawn out. A magnet 14 for attracting the coil-like scrap and detaching it from the reel is arranged on the inside surfaces of the clampers 11, 13 of the clamping mechanism 10. In this way, intervient manual work is completely eliminated, safty is ensured and also the take-out work of the coil-like scrap is executed at high efficiency.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scrap take-out device for taking-up and discharging a non-rolled portion of a strip end portion generated during hot rolling or cold rolling as scrap.

[0002]

2. Description of the Related Art The leading end or trailing end of a hot-rolled or cold-rolled strip (hereinafter collectively referred to as "end")
Has an unrolled portion or an off-gauge portion, and a scrap portion that cannot be provided as a product occurs. The scrap portion at the end of the strip needs to be removed from the strip and discharged. In the conventional scrap part discharge processing, the scrap part is wound on a reel on the output side or the input side, the bundle is artificially bound, and this small-diameter coiled scrap is extracted from the reel by a coil car, and the conveyor on the output side or the input side. The method of loading on board or unloading by crane was adopted. Further, as another scrap portion discharging processing means, a scrap winding machine is installed at a position different from the strip winding machine, and the wound scrap is thrown into a bucket (JP-A-49-35).
No. 261) was proposed.

However, the artificial binding method is not only poor in workability, but also low in efficiency because the coil car operates slowly. Also, JP-A-49-3526
The method disclosed in Japanese Patent Publication No. 1 has been proposed for the purpose of automation in order to make up for this drawback, but since a scrap winder is installed separately from the strip winder, the scrap that extends for a long time is scraped. In addition to having to install a pinch roll for applying a predetermined tension to the strip, if the strip tip shape is bad, for example, it is difficult to thread the strip due to curling, etc. It has the drawback that it cannot.

As a method for solving the above-mentioned drawbacks, a coil-shaped scrap wound around the reel of the reel so that it can be moved horizontally from the rear of the installation line of the strip reel to the reel of the reel as required. A traveling carriage for processing the above is arranged, and a mechanism for binding the coiled scrap wound around the reel of the winder at its front end and a scrap after the binding are disposed on the traveling carriage. There has been proposed a device (Japanese Utility Model Publication No. 3-44326) equipped with a clamp mechanism for gripping and holding the traversing machine so that the traversing machine can traverse in the scrap extracting direction.

[0005]

[Problems to be Solved by the Invention] The above-mentioned actual fairness 3-443
In the device disclosed in Japanese Patent No. 26, the coiled scrap 51 can be grasped and held by the clamp mechanism 52 and smoothly pulled out from the reel 53 when the coiled scrap has a large plate thickness, as shown in FIG. 5A. If the plate thickness is as thin as 1.0 mm or less, as shown in FIG.
The coiled scrap 51 is wound into a flat shape after being wound by the clamp device 52, and the head of the coiled scrap 51 comes into contact with the reel 53, so that the coiled scrap 51 cannot be smoothly extracted. The inner surface is displaced like a bamboo spring. Further, in such a state, there is a problem that correction by manual intervention is required, and scrap cannot be taken out by the original automation.

An object of the present invention is to solve the above-mentioned problems of the prior art and to take out coil-shaped scrap wound on the output side or the input side of a mill line at a strip end scrap removal which enables quick and safe removal. To provide a device.

[0007]

[Means for Solving the Problems] The inventors of the present invention have made extensive studies to achieve the above object. As a result, by embedding a magnet capable of separating the coiled scrap from the reel in the inner surface of the clamper of the clamp mechanism of the device disclosed in Japanese Utility Model Publication No. 3-44326, the clamper grips the coiled scrap and then the clamper. If the coil-shaped scrap is attracted by the magnet embedded in the inner surface, the coil-shaped scrap can follow the inner shape of the clamper without deforming the packing shape into a flat shape even if the plate thickness is 1.0 mm or less. The present invention has been achieved by further clarifying that the reel can be removed more smoothly and the reel can be smoothly pulled out.

That is, according to the present invention, a traveling carriage for processing the coiled scrap wound around the reel is provided so as to be horizontally movable to and from the reel as required from behind the strip winding machine installation line. Together with the front end on this traveling carriage, a traverse machine equipped with a binding mechanism for binding the coiled scrap wound around the reel of the winder, and a clamp mechanism for gripping and holding the scrap after binding, In the scrap take-out device mounted so as to be able to move transversely in the scrap take-out direction, a strip end characterized in that a magnet capable of adsorbing coiled scrap and removing it from the reel is arranged on the inner surface of the clamper of the clamp mechanism. This is a scrap removal device.

[0009]

According to the present invention, the coil-shaped scrap wound around the reel of the winder is urged by the binding mechanism by embedding a magnet capable of adsorbing the scrap and separating it from the reel in the inner surface of the clamp arm of the clamp mechanism. After bundling, when the clamp mechanism in which the magnet that can adsorb scrap to the inside of the clamp arm of the scrap take-out device and remove it from the reel is embedded is held by the clamp mechanism, it is adsorbed by the magnet embedded in the inner surface of the clamp arm and the plate thickness becomes 1.
Even if it is 0 mm or less, it can be removed from the reel without being deformed into a flat shape and can be smoothly pulled out from the reel. After that, the clamp arm by the clamp mechanism is opened at the scrapback dropping position where the work carriage is separated from the reel of the winding machine by the required distance, and the adsorption by the magnet is released to drop the coiled scrap on the scrapback.

As the clamp mechanism in the present invention,
The clamp arm is opened and closed by an opening / closing cylinder. As a magnet to be embedded in the inner surface of the clamp arm, it is possible to embed a plurality of electromagnets so that adsorption and desorption of coiled scrap can be performed by ON-OFF operation. It is easy to remove the coil and put the coiled scrap into the scrap bag. When using a permanent magnet, when loading coiled scrap into the scrap bag,
Since it cannot be turned on and off, a mechanical buttoning mechanism or a reverse magnetizing mechanism of the permanent magnet for separating the coiled scrap against the attraction force of the permanent magnet is required separately. Therefore, it is preferable to use an electromagnet as the magnet embedded in the inner surface of the clamp arm.

The binding mechanism for binding the coiled scrap wound around the reel of the winder according to the present invention is not particularly limited, but for example, the coiled hoop can be used as a hoop guide via a binding head. It consists of a pinch roller for feeding, a cylinder for opening and closing the bundling head, and a cylinder for opening and closing the hoop guide. By operating the hoop guide opening and closing cylinder, the coiled scrap wound around the reel was surrounded by the hoop guide. After that, the pinch roller sends the coiled hoop to the hoop guide through the bundling head to enclose it, and after the tip is introduced into the bundling head, the bundling head is brought into contact with the coiled scrap and the pinch roll is reversed. To pull back the extra length of the hoop, and then activate the cylinder to connect the coiled scrap with the hoop. And, other methods such as cutting the hoop can employ a known mechanism such as those described in JP-A-51-23456.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to FIGS. FIG. 1 is a plan view of a scrap unloading apparatus of the present invention, FIG. 2 is a side view of the scrap unloading apparatus of the present invention, FIG. 3 is an enlarged side view of a clamping mechanism of the present invention, and FIG. 4 is a coiled scrap extracting operation from a reel. It is a top view for explanation. 1 to 4, reference numeral 1 denotes a strip winder arranged on the outlet side of the mill line, which is also used as a device for winding scrap such as unrolled portion generated at the end of the rolled material. 2 is a rail 3 laid behind the strip winding machine 1 installation line
In the traveling carriage that moves along, the so-called forward / backward movement is performed by moving the fluid cylinder 4 so as to move closer to or away from the reel 5 of the winder 1.

Reference numeral 6 denotes a guide rail laid across the entire width on the upper surface of the traveling carriage 2, 7 is a spreading guide rail which reciprocates along the guide rail 6 by operating a fluid cylinder 8, and 9 is a spreading guide. A traverse carriage mounted on the rail 7 is configured to traverse along the spreading guide rail 7 by a known self-propelled mechanism such as a motor and a gear mechanism. Reference numeral 10 denotes a clamp mechanism installed on the traverse carriage 9, which is composed of a lower fixed arm 11 and a clamp arm 13 which is opened and closed by the operation of an opening / closing cylinder 12. 1
Two electromagnets 4 are embedded in the inner surfaces of the fixed arm 11 and the clamp arm 13 of the clamp mechanism 10. The fixed arm 11 and the clamp arm 13 hold and hold the coil-shaped scrap 15, and then when the electromagnets 14 are excited, the coil is scraped. Fixed arm 1 that absorbs scraps 15
According to the inner surface shapes of 1 and the clamp arm 13, even if the plate thickness is 1.0 mm or less, the winding shape can be detached from the reel 5 without flat deformation. 1
Reference numeral 6 denotes a hoop guide of a bundling mechanism for winding the bundling hoop around the coiled scrap 15 wound around the reel 5 of the winder 1. Although not shown, the bundling mechanism bunds the coiled hoops. It is composed of a pinch roller that feeds the hoop guide 16 through the head, a cylinder for opening and closing the binding head, and a cylinder for opening and closing the hoop guide 16.

Reference numeral 17 denotes a scrap bag which is reciprocated between the traveling carriage 2 in the retracted position and the traverse carriage 9 in the retracted state, between the clamp mechanism 10 obliquely below and the coiled scrap 15 transfer vehicle, and 18 is a scrap bag. Reference numeral 17 denotes a guide rail, reference numerals 19 and 20 denote chain wheels installed at one lower end of the guide rail 18, and reference numeral 21 denotes a chain suspended between the chain wheels 19 and 20. The lower portion of the scrap bag 17 is connected to the chain. 22 is an electric motor with a speed reducer that drives the chain wheel 20. If the electric motor 22 with a speed reducer is rotated in the forward and reverse directions, the chain wheel 19,
The scrap bag 17 reciprocates between 20 by the chain 21, and if the scrap bag 17 is tilted on the chain wheel 20 side, the coiled scrap 15 accommodated in the scrap bag 17 is loaded on a transport vehicle (not shown). Has been done. In addition, 23 and 24 are snubber rolls, which are configured so that when the unrolled scrap is wound around the reel 5 of the winder 1, the scrap coil is pressed to prevent the coiled scrap 15 from being loosened. .

With the above configuration, when the unrolled scrap is wound around the reel 5 of the winder 1, the coil-shaped scrap 15 is wound so that the scrap coil is pressed by the snubber rolls 23 and 24 so as not to be loosened. take. When the winding of the coiled scrap 15 is completed, the fluid cylinder 4 is operated to move the traveling carriage 2 forward along the rail 3, and the electric motor 22 with a speed reducer is activated to rotate the chain wheel 20 to move the chain 21 to the chain 21. The connected scrap bag 17 is advanced along the guide rail 18 to the loading position of the coiled scrap 15. Next, the fluid cylinder 8 is operated to extend the spreading guide rail 7 from the fixed position to the lower portion of the reel 5, and then the traverse carriage 9 is traversed along the spreading guide rail 7 by a known self-propelled mechanism. It is located at the bottom of the reel 5. In this case, the snubber roll 24 is in a lowered state to allow the transverse carriage 9 to enter, and the clamp mechanism 10 installed on the transverse carriage 9 has the opening / closing cylinder 1
2, the clamp arm 13 is located above, and the fixed arm 11 and the clamp arm 13 of the clamp mechanism 10 are
The coiled scrap 15 will be located in between.

Thereafter, the open / close cylinder 12 is operated to rotationally close the clamp arm 13 to hold and hold the coiled scrap 15 by the fixed arm 11 and the clamp arm 13, and the snubber roll 23 is lowered to hold the coiled scrap. 15, the electromagnets 14 are excited to adsorb the coiled scrap 15. Next, the coil cylinder scrap 15 wound around the reel 5 is operated by operating the opening / closing cylinder of the binding mechanism (not shown) of the hoop guide 16.
The coiled hoop is sent by the pinch roller to the hoop guide 16 through the bundling head to surround the hoop with the hoop guide 16 and the tip of the coiled hoop is introduced into the bundling head. 15, the pinch roll is reversed to pull back the extra length of the hoop, and then the cylinder is operated to bind the coiled scrap 15 with the hoop and cut the hoop to bind the coiled scrap 15. Complete. As a result, the coiled scrap 15 is fixed to the fixed arm 1 of the clamp mechanism 10.
1 and the inner shape of the clamp arm 13, the plate thickness is 1.
Even if it is 0 mm or less, it can be detached from the reel 5 without being flatly deformed.

Thereafter, the fluid cylinder 8 is operated to retract the spreading guide rail 7 to a fixed position to remove the coiled scrap 15 from the reel 5, and then the traverse carriage 9 is spread by a known self-propelled mechanism. It is traversed along the guide rail 7 and stopped at the loading position into the scrap bag 17. Then, when each electromagnet 14 is demagnetized and then reversely excited to release the adsorption of the coiled scrap 15, at the same time, the open / close cylinder 12 is operated to rotate the clamp arm 13 upward to open the clamp, whereby the coiled scrap 15 is fixed. The arm 11 rolls on the inclined surface and is dropped into the scrap bag 17.

When the coiled scrap 15 is dropped into the scrap bag 17, the electric motor 22 with a reduction gear is rotated in the reverse direction to rotate the chain wheel 20 in the reverse direction to the chain wheel 20 and the scrap bag 17 connected to the chain 21 is chained. After the scrap bag 17 is tilted after being moved to the wheel 20 side, the coiled scrap 15 accommodated in the scrap bag 17 is loaded on a transport vehicle (not shown). Therefore, when the coiled scrap 15 is taken out from the reel 5 of the winder 1, even if the plate thickness is 1.0 mm or less, the electromagnets 14 embedded in the inner surfaces of the fixed arm 11 and the clamp arm 13 of the clamp mechanism 10 are each. Since the winding shape of the coil-shaped scrap 15 follows the shapes of the inner surfaces of the fixed arm 11 and the clamp arm 13 by being sucked by, it can be prevented from coming into contact with the reel 5 and shifting like a bamboo shoot spring. Therefore, no manual intervention work is required, safety can be ensured, and the coiled scrap 15 can be taken out with high efficiency.

[0019]

As described above, according to the scrap extracting device of the present invention, even if the scrap is coil-shaped scrap having a plate thickness of 1.0 mm or less, it is embedded in the fixed arm of the clamp mechanism and the inner surface of the clamp arm. By adsorbing with a magnet, the winding shape of the coiled scrap follows the shape of the inner surface of the fixed arm and the clamp arm, so it can be prevented from coming into contact with the reel and slipping like a bamboo shoot spring, and manual intervention work is possible. Since there is nothing, safety can be secured, and the work of taking out coiled scrap can be performed with high efficiency.

[Brief description of drawings]

FIG. 1 is a plan view of a scrap extraction device of the present invention. FIG. 6 is a plan view for explaining extraction of coiled scrap from a reel.

FIG. 2 is a side view of the scrap extracting device of the present invention.

FIG. 3 is an enlarged side view of the clamp mechanism of the present invention.

FIG. 4 is a plan view for explaining extraction of coiled scrap from a reel.

FIG. 5 is an explanatory view of a winding shape when a coiled scrap is taken out from a reel by the device disclosed in Japanese Utility Model Publication No. 3-44326, and FIG. 5 (a) shows the case where the plate thickness is 1.0 mm or more,
(B) The figure shows the case where the plate thickness is less than 1.0 mm.

[Explanation of symbols]

 1 Rewinder 2 Traveling trolley 3 Rails 4, 8 Fluid cylinder 5, 53 Reel 6, 18 Guide rail 7 Spreading guide rail 9 Traverse trolley 10, 52 Clamp mechanism 11 Fixed arm 12 Opening / closing cylinder 13 Clamp arm 14 Electromagnet 15, 51 Coiled scrap 16 Hoop guide 17 Scrap bag 19, 20 Chain wheel 21 Chain 22 Electric motor with reduction gear 23, 24 Snubber roll

Claims (1)

[Claims] 1. A traveling carriage for disposing coiled scrap wound around a reel is provided so as to be horizontally movable to and from the reel as required from the rear of the strip winding machine installation line. At the front end on the traveling carriage, a traverse machine equipped with a binding mechanism that binds the coiled scrap wound around the reel of the winder and a clamp mechanism that holds and holds the scrap after binding the scraper In a scrap take-out device mounted so as to be able to move transversely in the take-out direction, a scrap at the tip of the strip characterized in that a magnet capable of adsorbing the coiled scrap and removing it from the reel is arranged on the inner surface of the clamper of the clamp mechanism. Take-out device.