JPS5858931A - Wrapping method of strip - Google Patents

Abstract

PURPOSE:To stably wrap a thick strip especially, by guiding a strip of which tip is previously bent with a bending roll. CONSTITUTION:A thick hot rolled strip A is faced downward by pinch rolls 21 and 22, passed through between bending rolls 24 to be bent into an arc so as to easily coil around a mandrel 23, and then, the strip A is advanced into between the mandrel 23 and the 2nd wrapper roll 28. In this case, because the strip A of which tip is previously being bent is advanced into the mandrel 23, respective wrapper rolls 28, 29, and 30 and wrapper guides 31, 32, and 33 are enough to perform only a role of coiling the strip A around the mandrel 23, preventing from being imposed a large load on them. Next, as a winding diameter of the mandrel 23 becomes gradually large as the wind of the strip A proceeds, the mandrel 23 is made gradually descend, because the strip A may interfere with a roll 24 to make a trouble in winding, thus the winding is smoothly performed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for winding a strip, and particularly relates to a method for winding a strip.
Thick material x)! This invention relates to a method for winding J-tube in a stable manner.

Generally, the lip of the final finishing stand passes through an F table at the end of the run, is wound up by a down coiler, and is coiled.

A conventional down coite that monitors the lip is a pair of upper and lower pin fields (1) placed at the end of the run-out F table, as shown in No. 111g1.

L2), a pair of strip guides 18) * (4) and both guides (S
), (4) Mandrel (6
), a wrapper roll (6) a (71#) provided around the W4 of this mandrel (6) (8), and a wrapper guide (9) placed around each wrapper roll.

(4) and (6), and the guide m a '
(4) Between &: The strip (4) guided through is 1
g1 Ratsuparol (6) and I11 Rappa Guide (@
), it is bent along the mandrel (6), and roughly the next position 1112.43. Make a circle and make a striped lip (4) [Wrap around the mandrel one after another to form a coil.

When each of the rough pearls and wrappers are wound several times around the mandrel (Is), the striped lip (4) is removed by the contraction of the cylinder (B) 11.041.
He defected from Pinch Cost (1), Den) and Mandrel (
5) In the dark, tension is applied to the strip lip (4), causing the strip (4) to be wound into a tight coil.

As above, attach the IJ knob (4) to the mandrel (6).
) and wrap it around the tip to get 1! - It is necessary to bend the tip of the strip with a bugle and a U5 collar guide. However, if the strip is thin, it can be easily bent with the tipper sole and guide, but with a thick strip that is rigid, It cannot be given sufficient bend and cannot be wrapped around a mandrel.

By the way, in recent years hot strip has been used as a material for steel pipes, and its use has sometimes been expanded to include thick inner pipes.
60. A hot coil with a wall thickness of 6 to 25 cm is required for the rumored high-tensile steel pipe of the X7G.

However, in the conventional down quencher, as mentioned above,
The spring of the thick strip of sea urchin is gold, and the cod cap of the down coiler is gas.

This invention has been made in view of the above-mentioned points, and provides a winding method for making a coil cylinder of an extremely thick strip, which has been conventionally difficult to use, into a steel by forming a bend at the tip of the strip. is the purpose.

The invention will now be described with reference to the embodiments shown in FIGS. 2 and 5.

As shown in the figure, place benzoin goo-roo between the pinch reel (2), @ and the mandrel Sakaki, and strip (4).
) can be curved to make it easier to wrap around the mandrel.

This bending row kN is applied to the upper two rolls)
, - and one roll at the bottom), and has the total force to bend the strip (4) passing between the upper F rolls, even for extremely thick materials, and between the upper and lower rolls. It can be set appropriately depending on the plate thickness and the rigidity of the strip (4).

The mandrel (to) is bending 1! As shown by the solid line in Figure 5, from the position indicated by the dashed-dotted line in Figure 5 approaching the route,
They are arranged so that they can be moved diagonally downward.

There is a strip (4
) around the mandrel.
Four trumpet guide spears -1- are arranged so as to move together with the mandrel.

A driving device for moving the mandrel is not shown in the drawings, but various types can be used, such as a hydraulic system or an electric jack system.

In addition, each bugle field ■;■, t14 trapper guide l
t'a m '$4 * N hat/ 9 n/N s
@l s IPI k-yo Q,! The present invention is constructed as described above, and the winding method will be explained next.

Thick hot strip (4 is pinch reel 0! υ and -
After being directed downward, it passes through a bending roller, the tip of which is curved into an arc so that it can be wrapped around a mandrel, and then enters the mandrel and the first wrapper roller.

The strip (4) enters the mandrel with its tip pre-curved, so that each wrapper-route.

x, 9IIJs and the wrapper guides -1- only need to play the role of winding the strip (4) around the mandrel, and are not subject to a large load.

The mandrel is in a position close to the bending roll, as shown in Figure S, until the tip of the strip (4) is wrapped and bent, and each wrapper reel and guide presses against the λF lip. If the mandler AIQ11 is at a position farther away from the bending 0- at the beginning of the 0-winding, the tip of the bent strip (4) may hit the mandre #4, or the strip may not be able to be wound. Initially, it was located near Ben Dinh and Greelu. 74 When the strip (4) is wound around the mandrel, the cylinders t+n, -, - of each wrapper I contract, and each wrapper reel and guide 11 from the strip.
1 will be contrary.

Also, when strips are wound one after another on a mandrel and the winding diameter increases, it is also called bending! - In order to avoid interfering with the strip and hindering the winding work, the mandrel is thinned at the solid line position of the iga diagram and is moved downward sequentially while winding the strip so that the diameter of one roll does not overlap. Even strip (4
To enable winding work to be carried out smoothly without any hindrance.

By the way, by the method of this invention, the thickness of the plate is 25cm and the plate is 111mm.
It was possible to wind a 1,600 gourd strip even at a winding temperature of 45 G@0.

As described above, according to the present invention, the tip of the lip from the vinyl roll to the mandrel is bent with the bending roll. By making it easier to wind the mandrel, and by moving the mandrel downwards when the winding diameter becomes larger, it becomes possible to coil thick plate strips, which was impossible with conventional down coilers. 1lllltl of hot coils for spiral steel pipes can be made into dormitory blocks.

Further, since the mandrel moves downward as the winding diameter increases, winding can be performed smoothly.

[Brief explanation of the drawing]

Figure m1 shows the f-plane rI11 of a conventional down coiler, zWi is the positive dIWJ of the down coiler used in this invention,
No. 311 is an explanatory diagram showing the same operation as above. (2), - is vintyrol, - is mandrel, - is bending roll, -m v4 a H halatsuva reel,
II, 11. II is a bugle guide. Patent applicant: Sumitomo Metal Industries, Ltd.

Claims (1)

[Claims] (1) When winding the strip, use a pinch reel and a bending reel placed on the bending reel to bend the tip of the strip around the mandrel to make it easier to wind it around the mandrel. A strip picking method characterized in that as the diameter of the coil to be wound increases, the mandrel is sequentially moved downward to perform sound collection.