JP2501482B2 - Inner diameter sleeve recovery method and recovery equipment - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for recovering an inner diameter sleeve used in a temper mill or the like.

[Prior Art] A tin material rolled by a temper mill is annealed by a continuous annealing device, but the temperature is not sufficiently lowered when it is wound by a tension reel. Therefore, if the mandrel is contracted after winding the strip from this state, buckling causes an inner diameter kink in the strip. In order to prevent this, the inner diameter sleeve wound with a steel plate of about 1.5 mm is inserted into the tension reel and wound in this state. The interposition of the inner diameter sleeve can prevent the occurrence of inner diameter kink. However, since the conventional inner diameter sleeve is thin, the winding tension of the strip cannot be increased, and the coil is easily eccentric. For this reason, it may be possible to use a thick inner diameter sleeve, but since the inner diameter sleeve is disposable, there is a problem that its cost becomes high.

Japanese Utility Model No. 57-70709 proposes a jig for collecting sleeves by using a crane. However, this is not a dedicated facility, but is merely a countermeasure against a rare occurrence of a sudden small diameter coil, such as when the tandem mill is stopped due to breakage. That is, 57-707
In No. 09, the small-diameter coil, which is constantly generated as seen in the rolling of thin material in a temper mill, cannot deal with many time losses.

[Technical problem to be solved by the invention] The present invention has been made in view of the above circumstances, and an object of the present invention is to collect an inner diameter sleeve without newly installing a dedicated line. By collecting the sleeve, it is possible to use thick ones,
It is intended to provide a method capable of solving the problems of strip winding tension, coil eccentricity, and cost increase.

[Means for Solving the Problems] That is, according to the inner diameter sleeve collecting method of the present invention, a step of bringing an inner diameter sleeve having a strip wound around it into an end press machine to fix the strip, and an inner diameter sleeve inside the end press machine are fixed. Inserting an uncoiler into the uncoiler, and rewinding the strip wound around the inner diameter sleeve by the rotating motion of the uncoiler, and pulling out the uncoiler together with the inner diameter sleeve, separating the inner diameter sleeve from the strip, and collecting the inner diameter sleeve. It is equipped with.

Further, the strip recovery equipment of the present invention includes a coil transport device for transporting an inner diameter sleeve having a strip wound around it, a rewind device for rewinding the transported strip, and an inner diameter left on the rewind device after the rewind operation. And a sleeve collecting device for rewinding the sleeved strip and taking out only the sleeve.

[Examples] The present invention will be described below based on illustrated examples. Fig. 1 is a block diagram of the main part of the inner diameter sleeve recovery equipment,
The figure is a schematic view of the inner diameter sleeve recovery facility. The strip ST emitted from the continuous annealing device 100 is wound up by the tension reel 110 equipped with the inner diameter sleeve SL, and is transported to the position a in FIG. 2 by the coil transport device 120, where it is transported to the unwinding device 140 by the coil car 130. Carried.
Here, the strip ST is rolled by the temper mill 150.
With the rewind device 140, the last 10 or so windings are not rewound due to dirt, bad shape, etc.
Not rolled at 150. The strip ST wound around the inner diameter sleeve SL is fed by the coil car 130 to the dispensing device 160.
Then, it is carried to a position right below the scrap end press 170 by the dispensing device 160. The coil car 130 is then loading the next strip with inner diameter sleeve into the unwinding device 140. During the rewinding of the next coil by the rewinding device 140, the inner diameter sleeve recovery device 180 used in the method of the present invention is the scrap end press 1
Proceed to 70. And inner sleeve collection device 180
As described in detail below, the coil is unwound, the inner diameter sleeve SL is separated from the strip ST, collected, and temporarily stored in the sleeve collection bag 190. After that, the inner diameter sleeve SL is an outlet of the continuous annealing device 100,
That is, the tension reel 110 is transported to a mounting position and reused. On the other hand, the separated strip ST is
It is crushed by the scrap end press 170 and stored in the scrap bag 200.

The inner diameter sleeve recovery device 180 and the scrap end press 170 used in the method of the present invention are shown in FIG. 3 (plan view),
As shown in FIG. 4 (front view), the end press machine 10, the uncoiler 20, the sleeve pedestal 30, and the sleeve back.
40 are arranged. End press machine 10 is an uncoiler
It has the function of separating the inner diameter sleeve from the strip in cooperation with 20, and the function of collapsing the strip when it is separated independently. In order to separate the inner diameter sleeve from the strip, the end press machine 10 is provided with a strip tip fixing tool 11 for fixing the tip of the strip loaded in the end press machine. A coil end stopper 12 is provided on the inlet side of the end press machine 10 to prevent the strip from coming out. Also, the end press machine
13 is provided, and this press can move in the direction of the loaded strip and crush the strip. The uncoiler 20 is arranged so that it can be loaded into an inner diameter sleeve mounted in the end press machine 10. In the uncoiler 20, for example, as shown in FIG. 5, a plurality of segments 23 are arranged around a rotary shaft 21 via a link mechanism 22. The sleeve cradle 30 and the sleeve back 40 are arranged in front of the end press machine so as to face each other. The sleeve receiving base 30 moves forward and backward in the direction of the sleeve back 40, and has a sleeve receiving portion 31 at its tip. The sleeve receiving portion 41 is tiltable in the sleeve back 40 direction. The sleeve back 40 is a container that can store a plurality of inner diameter sleeves.

In this embodiment, the inner diameter sleeve is collected as follows using the apparatus configured as described above. When the inner diameter sleeve with the strip on the outer circumference is carried into the end press machine 10 by the coil car (not shown), the uncoiler 20
Gradually progresses. As the uncoiler 20 enters the inner diameter sleeve, it rises and further releases the segment 23 to grab the inner diameter sleeve. Next, the strip end fixture 11 advances to hold down the strip and prevent the strip from falling and spinning. The uncoiler 20 rotates in the direction of rewinding the strip, rewinding the strip wound around the outer circumference of the inner diameter sleeve. Then, after the coil end stopper presses the strip to prevent the strip from coming out together with the inner diameter sleeve, the uncoiler 20 retracts, and the inner diameter sleeve separated from the strip is pulled out. When the uncoiler 20 retracts to a predetermined position, the inner diameter sleeve pedestal 30 advances. Uncoiler 20 releases and descends,
The inner diameter sleeve is placed on the sleeve receiving portion 31 and retracted. The sleeve pedestal 30 that has received the inner diameter sleeve further advances, and the sleeve receiving portion 31 tilts to dispense the inner diameter sleeve to the sleeve back 40. After storing a predetermined number (for example, 9) of the inner diameter sleeves, the sleeve back 40 is carried to the outlet of the continuous annealing device by a crane and a bogie truck. Then, it is used again for winding the strip.

On the other hand, separated from the inner diameter sleeve SL, the end press 170
As shown in FIGS. 6 and 7, the scrap bag 200 for accommodating the strip ST crushed by is attached to the scrap bag main body 51 whose lower end is opened and the open lower end of the scrap back main body so as to be openable and closable. A pair of bottom plates 52,
A hanging portion 53 provided on a side surface of the scrapback main body for hoisting the scrapback main body, a link mechanism 54 attached to each of the bottom plates 52 and the hanging portions 53, and attached to both lower side surfaces of the scrapback main body 51. And a bracket 55. A central portion of the suspension portion 53 is rotatably attached to the scrap body 51, and a weight portion 56 is provided on the opposite side of the suspension portion 53. In addition, the link mechanism 54
Includes a pair of elongated rods 54a, 54a, one end of which is pivotally attached to the central portion of the bottom plate 52 and the other end of which is pivotally attached to the central portion of the hanging portion 53. Therefore, when moving to and from the scrap end press 170, the suspending portion 53 is pushed by the frame of the end press 170, and as a result, the suspending portion 53 is laid down as shown in FIG. Moving. Further, when the scrapback is lifted, as shown in FIG. 8, the weight portion 56 pivotally moves downward due to the weight of the weight portion 56, and as a result, the hanging portion 53 is positioned on the upper side. Further, as shown in FIG. 9, a pair of bottom plates 52
Is adapted to open and close depending on the vertical direction of the suspension portion 53.

In the scrapback configured as described above, as soon as the crushed strips are filled, the electric lifter (not shown) of the overhead crane picks up the hanging portion 53 to move the scrapback. Then, as shown in FIGS. 10 and 11, the brackets 55 provided on both sides of the scrapback main body 51 are placed on the pedestals 61 provided on both sides of the dynasorber 60. If it is lowered as it is, the scrap back main body 51 stops, and only the pair of bottom plates 52 are lowered and opened by the weight of the scrap filled inside. At the same time, the internal scrap is paid out. According to this scrapback 200, the bottom of the scrapback is opened due to the weight of the scrap when the scrapback is placed on the gantry. Since it is performed only by placing the, the work is simplified,
Workability is improved and safety is improved.

[Advantages of the Invention] As described above, according to the present invention, the inner diameter sleeve can be collected and reused, so that the cost can be reduced. Moreover, since the inner diameter sleeve is reused, the problem of increase in cost due to disposable use can be solved, and the inner diameter sleeve can be made of a thick steel plate instead of the conventional thin steel plate, resulting in an inner kink on the coil. It can be prevented from occurring.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of an inner diameter sleeve recovery facility according to the present invention. FIG. 2 is a schematic view of the entire equipment including the inner diameter sleeve recovery device. FIG. 3 is a plan view of the inner diameter sleeve recovery device according to the present invention. FIG. 4 is a front view of the inner diameter sleeve recovery device according to the present invention. FIG. 5 is a front view of the uncoiler according to the present invention. FIG. 6 is a side view showing an example of the scrapback of the present invention. FIG. 7 is a front view showing an example of the scrapback of the present invention. 8 and 9 are views showing the function of the scrapback link mechanism shown in FIGS. 6 and 7. FIG. 10 is a side view showing a state in which the strip is dispensed from the scrap bag. FIG. 11 is a front view showing a state in which the strip is dispensed from the scrap bag. 10 …… End press machine, 11 …… Strip tip fixture,
12 …… Coil end stopper, 13 …… Press, 20 ……
Uncoiler, 21 …… Rotary shaft, 22 …… Link mechanism, 23…
… Segment, 30 …… Sleeve pedestal, 31 …… Sleeve receiving section, 40 …… Sleeve back, 51 …… Scrapback body, 52 …… Bottom plate, 53 …… Suspension section, 54 …… Link mechanism, 55 …… Bracket, 56 ... Weight part, 60 ... Dynasorber, 61 ... Stand ST ... Strip, SL ... Inner diameter sleeve, 100 ... Continuous annealing device, 110 ... Tension reel, 120 ... Coil transfer device, 130 ...... Coil car, 140
...... Rewinding device, 150 …… Temper mill, 160 …… Discharging device, 170 …… Scrap end press, 180 …… Inner sleeve collection device, 190 …… Sleeve collection bag, 200…
… Scrapback,

Claims (2)

(57) [Claims] 1. An inner diameter sleeve having a strip wound around it is carried into an end press machine to fix the strip, and an uncoiler is inserted into the inner diameter sleeve in the end press machine, and the inner diameter is obtained by rotating the uncoiler. An inner diameter sleeve collecting method comprising: a step of rewinding the strip wound around the outer circumference of the sleeve; a step of pulling out the uncoiler together with the inner diameter sleeve to separate the inner diameter sleeve from the strip, and then recovering the inner diameter sleeve. 2. A coil conveying device for conveying an inner diameter sleeve having a strip wound around the outer periphery thereof, a rewinding device for rewinding the conveyed strip, and a strip with an inner diameter sleeve remaining on the rewinding device after the rewinding operation. An inner diameter sleeve recovery device that rewinds and recovers only the sleeve.