JP2000271640A - Carousel reel type winding equipment for continuous hot rolling line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stably pass a strip by preventing the tip of the strip from hitting a threading guide when winding the tip of the strip with an upstream mandrel. SOLUTION: An upstream passing plate guide provided above and below an upstream path line toward an upstream mandrel 2 is provided above and below a downstream path line branched from the upstream path line and going to a downstream mandrel. In a carousel reel type winding facility of a continuous hot rolling line provided with an arranged downstream threading guide, winding is performed on an upstream mandrel 2 in an upstream threading guide and a downstream threading guide. Guides 10, 1 arranged at positions where the leading ends of strips S to be passed pass
2, 13, 14 are provided with fluid jetting means A1 to A4 for blowing air toward the end of the strip.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a carousel reel type winding apparatus for a continuous hot rolling line.

[0002]

2. Description of the Related Art In the field of hot rolling, strips are joined upstream of a finishing mill to continuously roll the joined strips in order to improve yield and productivity. . In recent years, a carousel reel-type winding facility has been used as a winding facility for continuous hot rolling.

FIG. 5 schematically shows an example of a continuous hot rolling line in which a carousel reel type winding facility is arranged. The carousel reel type winding device comprises first and second mandrels 1,
2 and the first and second mandrels 1 and 2
The turning tracks 3 are circumferentially separated from each other so as to be able to turn so that one of them is located on the upstream side and the other is located on the downstream side. Then, for example, when the first mandrel 1 is located on the upstream side, the preceding strip S sent from the finishing mill 4 by the first mandrel 1
After winding the _first strip ₁ by a predetermined amount, the first mandrel 1 is turned to the downstream side while winding the preceding strip S ₁ , and in this state, the tail end of the preceding strip S ₁ is removed by the strip shear 5.
It has a tip of the trailing strip S ₂ to take up by the second mandrel 2 located on the upstream side in the cutting to. Note that after the winding of the strip on the downstream side is completed, the coil of the strip S ₁ is drawn off from the first mandrel 1, a standby state until the next position to the upstream side.

Further, an upstream mandrel (a first mandrel in the figure)
Mandrel 1) Upstream pass line P heading₁Above and below
Guide the tip of strip S toward the mandrel on the upstream side
The upstream passing plate guides 6 to 13 are arranged, and the upstream path
Line P₁From the downstream mandrel (Fig.
2 downstream pass line P towards mandrel 2)_Twoupon
Below is a strip S that is wound on the downstream mandrel
The downstream side plate guides 13 to 15 for guiding the
You. The passing plate guide 13 is located on the upstream side pass line P.₁From
Downstream pass line P_TwoIs located at the branching point and upstream
Side pass line P ₁For upper guide and downstream pass line
P_TwoIt also serves as the lower guide for it.

Further, in FIG. 5, reference numeral 16 denotes a pass line.
P₁Installed between finishing mill 4 and strip shear 5
Pinch roll, 17 is pass line P₁In the strip
The pinch roll 24 disposed on the exit side of the pusher 5
Sline P₁And pass line P _TwoIn the state of the branch position
Guide roller 18 is located outside the mandrel on the upstream side.
Upstream wrapper arranged on the peripheral surface so that it can move closer and further away
Roll 19 moves closer to the outer peripheral surface of the downstream mandrel
Is a downstream wrapper roll arranged movably between
Upstream and downstream wrapper rolls 18, 19 and downstream
The upper guide 14 of the side plate guide is the first and second mandrel.
In order to allow the turns 1 and 2 to turn on the turning track 3
It moves away from the orbit 3.

[0006]

In [0006] the conventional mosquito Roselle reel-up apparatus, when winding the leading end of the trailing strip S ₂ by the second mandrel 2 on the upstream side, in FIGS. 6 (a) as shown, warped tip line strip S ₂ passes through the shear egress pinch rolls 17,
As shown in FIG. 6B,
May progress of the strip S hanging erect the strip passing guide 13 in the position the tip of the trailing strip S ₂ branches the downstream pass line P ₂ from the upstream side path line P ₁ will stop, the strip The sticking phenomenon at the tip is remarkable in a so-called ultra-thin steel plate having a thickness of the strip S of 1.0 mm or less.

SUMMARY OF THE INVENTION The present invention has been made to solve such inconveniences. When the mandrel on the upstream side winds up the leading end of the strip, the leading end of the strip is prevented from colliding with the passing plate guide to stabilize the strip. It is an object of the present invention to provide a carousel reel-type winding device capable of performing a threaded plate.

[0008]

In order to achieve the above object, a carousel reel type winding apparatus according to claim 1 is provided.
A first or second mandrel that is arranged on a swivel track so as to be pivotally separated from each other in a circumferential direction so that one is located on the downstream side while the other is located on the downstream side; When the mandrel is located on the upstream side, the first mandrel winds the leading strip by a predetermined amount, and then the first mandrel is turned downstream while winding the leading strip. The tail end is cut off by a strip shear so that the leading end of the following strip is wound by a second mandrel located on the upstream side, and furthermore, the upstream side disposed above and below the upstream pass line toward the mandrel on the upstream side Continuous hot rolling comprising a side pass guide and a downstream pass guide disposed above and below a downstream pass line branching from an upstream pass line to a downstream mandrel. In the carousel reel-type winding device of IN, a fluid jet that blows fluid toward the tip of the strip is provided to a guide disposed at a position where the leading end of the strip passes among the upstream side passing plate guide and the downstream side passing plate guide. Means are provided.

According to a second aspect of the present invention, in the carousel reel-type winding device according to the first aspect, the fluid jetting means is disposed above the upstream path line just before a position where the downstream path line branches off from the upstream path line. It is characterized by being arranged in.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view for explaining a carousel reel type winding apparatus as an example of an embodiment of the present invention, FIG. 2 is an explanatory sectional view showing an example of a fluid jetting means, and FIG. FIG. 4 is a graph showing the relationship between the plate thickness and the air pressure when the pressure is lowered by 25 mm, and FIG. 4 is an explanatory diagram for explaining the behavior of the strip tip when the tip of the strip is wound by the upstream mandrel. In this embodiment, both the carousel reel type winding apparatus and the continuous hot rolling line have been described in the conventional example (FIG. 5), and the description of the overlapping portions will be omitted.

[0011] In this embodiment, Shah exit side pinch roll 17 of the outgoing air ejection means on the guide 10 on the upstream side path line P ₁ of the upwardly arranged upstream passage plate guide side A
1 from the upstream pass line P ₁ to the downstream pass line P ₂
There the air ejection means A2 on the guide 14 on the upstream side path is located above the line P ₁ downstream side through-plate guide before the position where the branch (end position of the guide 13), just before the second mandrel 2 Air ejecting means A3 and A4 are provided on upper and lower guides 13 and 12 of the upstream-side passing plate guide, respectively, and the air ejecting means A1, A2 and A3
Is blown from above, and the air blowing means A4 blows air from beneath the strip S.

FIG. 1 shows a state in which the leading strip S ₁ is being wound by the first mandrel 1 turned to the downstream side. The tail end of the leading strip S ₁ in this state to cut a strip shear 5, but in this embodiment, for ejecting air from the air jetting means A1~A4 immediately before such cutting. Thus, when the winding by the second mandrel 2 located a the leading end of the trailing strip S ₂ on the upstream side, blown air toward the tip of the trailing strip S ₂ from the air ejection means Al to A4.

FIG. 2 shows the structure of the air blowing means A2.
The guide 14 has a φ6 drill hole 20 in the width direction of the plate 100 m.
The guide member 14 is provided with a header member 21 on the upper surface side of the guide 14. Reference numeral 22 denotes a pressure gauge, and 23 denotes a valve. Guide 14 and Guide 1
The gap at the tip of No. 3 is about 25 mm.
In the case where the tip of the strip is upwardly warped and the tip is passed along the guide 14, the strip tip must be pushed down by 25 mm or more with air jetted from the air jetting means A2 and guided under the guide 13. No. FIG. 3 shows the relationship between the thickness of the strip and the required air pressure at this time.

FIG. 3 shows that the air pressure is 1 k at a plate thickness of 0.8 mm.
g / cm ² , air pressure 1.5 kg /
air pressure 2.5 kg / cm for cm ² and 1.6 mm thickness
^2. It was found that the air pressure was 3.5 kg / cm ² at a plate thickness of 2 mm, and in this embodiment, the air pressure of the air jetting means A2 was set to 4 kg / cm ² with a margin. In addition,
The air ejecting means A1, A3, and A4 have the same structure as the air ejecting means A2, and the air pressure is 4 kg / c as in the case of the air ejecting means A2 in order to secure a stable passing plate.
m ² .

FIG. 4 shows the behavior of the leading end of the succeeding strip S ₁ when the leading end of the succeeding strip S ₂ is wound by the second mandrel 2 after the tail end of the preceding strip S ₁ has been cut by the strip shear 5. In FIG. 4 (a) leading strip S ₁ of the tail is entered the second mandrel 2 side first mandrel 1 of the trailing strip S ₂ exits the side tip located on the downstream side is positioned on the upstream side It is just right. Tip of the trailing strip S ₂ are cambered but pressed against downward by the air blown from the air jetting means A2, is derived smoothly between the guide 13 and the guide 12 without lunge in the guide 13 . Then, it pressed the upper and lower surface side of the trailing strip S ₂ to FIG 4 (b) In the air blown from the air jetting means A3, A4, are Tsuban smoothly towards the second mandrel 2, FIG. 4 (c as shown in), the tip of the trailing strip S ₂ stops ejection of the air by the air injection means A1, A2, A3, a at the time when the wound bite into the second mandrel 2 has been completed.

[0016]

As is apparent from the above description, according to the present invention, when the leading end of the strip is wound by the mandrel on the upstream side, it is possible to prevent the leading end of the strip from hitting the plate guide. Therefore, an effect is obtained that the strip can be stably passed.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating a carousel reel-type winding facility as an example of an embodiment of the present invention.

FIG. 2 is an explanatory sectional view showing an example of a fluid ejection unit.

FIG. 3 is a graph showing the relationship between the plate thickness and the air pressure when the tip of the strip is pushed down by 25 mm by air pressure.

FIG. 4 is an explanatory diagram for explaining the behavior of the strip tip when the tip of the strip is wound by an upstream mandrel.

FIG. 5 is a diagram schematically showing an example of a continuous hot rolling line in which carousel reel type winding equipment is arranged.

FIG. 6 is an explanatory diagram for explaining the behavior of the strip tip when the tip of the strip is wound by a mandrel on the upstream side of the conventional winding equipment.

[Explanation of symbols]

1 ... first mandrel 2 ... second mandrel 3 ... orbiting 4 ... finishing mill 5 ... strip shear S ₁ ... leading strip S ₂ ... trailing strip P ₁ ... upstream pass line P ₂ ... downstream pass line 6-13: Upstream passage plate guide 13-15: Downstream passage plate guide A1-A4: Fluid ejection means

Claims (2)

[Claims] 1. A first and a second mandrel, which are arranged on a swivel path so as to be pivotally separated from each other in a circumferential direction so that one is located on the upstream side and the other is located on the downstream side. When the first mandrel is located on the upstream side, the first mandrel winds a predetermined amount of the leading strip, and then the first mandrel is turned downstream while winding the leading strip. In the state, the tail end of the preceding strip is cut by a strip shear so that the leading end of the following strip is wound by the second mandrel located on the upstream side, and further, above and below the upstream pass line toward the upstream mandrel. An upstream-side passing plate guide, and a downstream-side passing plate guide that is disposed above and below a downstream-side pass line that branches off from the upstream-side pass line and travels toward the downstream-side mandrel. In a carousel reel-type winding facility of a continuous hot rolling line, a guide disposed at a position where the leading end of the strip passes in the upstream side passing guide and the downstream side passing guide is fed toward the leading end of the strip. A carousel reel-type winding facility for a continuous hot rolling line, comprising a fluid jetting means for blowing water. 2. The continuous hot rolling according to claim 1, wherein the fluid jetting means is arranged above the upstream pass line before a position where the downstream pass line branches off from the upstream pass line. Line carousel reel type winding equipment.