JPH07284851A - Shape processing method for tip end of coil for passing - Google Patents

Abstract

PURPOSE:To prevent scratches from generating on a surface at the time of passing in the following process by applying a shape treatment, for unwinding passing in the following process, on the rear end part of a strip material wound in a coil. CONSTITUTION:A strip steel after a treatment is put through an oiling treatment by an oiler 2 and a bending treatment by a bending roll 4, and taken up on a tension reel 5. The strip steel taken up on the reel 5 is cut off by a shearing machine 3 at a prescribed length and weight. When the rear end of the coil reaches a tail end straightening roll 7, it activates the roll 7, giving an upward camber to the rear end of the coil. A bending roll 4 is then released, and the strip is taken up on the reel 5 as the rear end of the coil kept to bee cambered upward. Thus, a shape treatment is dispensed with at the time of unwinding passing of the coil.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shape treatment for passing a plate in the next step of these steps when wound in a pickling / continuous annealing / pressure adjusting line.

[0002]

2. Description of the Related Art When unwinding a coil for passing a strip-shaped plate wound in a coil shape, the outer winding of the incoming coil is warped to facilitate the passage.

In order to process the shape of the tip of the coil, it may be carried out manually with a bur-shaped jig, but especially in the process in which the striping work is automated, the shape of the tip of the coil is ensured. It is important to make a warp shape, and for this shape treatment, for example, as a pretreatment at the entrance side of the passing step, the coil is rewound on a cradle roll and the tip sharpened in a knife shape is used. The coil opener is arranged so that the end of the coil is separated from the coil by hitting the coil against the coil, and the coil is bent upward.

However, this coil opener
Basically, it is composed of a device for rotating the coil, a device for detecting the tip position, and a device for changing the shape of the coil. The scale of itself is large for the target work, and the equipment cost is too high. There are drawbacks.

Further, during the operation, there is a drawback that the opener comes into contact with the strip plate to cause a flaw on the surface.

[0006]

SUMMARY OF THE INVENTION A first object of the present invention is to reduce the equipment cost in an apparatus for shaping the end of a coiled strip plate for passing in the next step. To provide the means to achieve mitigation.

Another object is to establish means for stably performing the shape processing.

[0008]

According to the present invention, when a strip-shaped material which has been continuously processed is wound to form a coil, a rear end portion of the strip-shaped material is subjected to a shape processing for a rewinding plate in the next step. Is characterized by.

Various means such as a leveler roll can be used for this shape treatment, but at the rear of the shearing machine for coil splitting, which is usually installed as a continuous processing line for continuous plates such as strip steel plates. Providing a tail end correction roll may be simple in terms of equipment and processing.

[0010]

The function of the strip-shaped plate wound in a coil shape is not processed at the time of rewinding the strip-shaped plate, but the strip-shaped plate is wound in a coil at the final stage of the previous process. By subjecting the end to the shape treatment, the shape treatment of the tip at the time of unwinding for the threaded plate after winding can be omitted.

[0011]

EXAMPLE An example in which the present invention is applied to a continuous pickling line for strip steel sheets will be described.

FIG. 1 shows an outline of winding a strip steel sheet from a continuous pickling layer. Before the bridle 1, there are pickling equipment and trimming equipment. The pickled strip is bridle 1, followed by Euler 2, shears 3,
The tail end straightening roll 7, the bending roll 4, and the tension reel 5 are arranged in this order. 4 is given a curl in the direction of warp, and the tension reel 5
To be wound up.

FIG. 2 shows a processing step for forming a warp portion at the rear end of the coil to be wound, in which the strip steel plate S to be wound on the tension reel 5 has a predetermined length and weight. The carrier strip steel plate S is cut by the shearing machine 3 and the rear end portions 100 to 4 of the coil are cut.
When 00 mm reaches the tail end straightening roll 7, the tail end straightening roll 7 is actuated, and the rear end portions 100 to 4 of the coil are moved.
The end of the coil is warped from 00 mm. afterwards,
The bending roll 4 is opened, and after its shape is processed, the rear end portion is wound up by the tension reel 5 while being warped.

The above example shows that the line is stopped and executed at the time of cutting, but the carousel reel, 2
The basic operation can be performed in the same manner even in a line in which tension reels are arranged and continuous switching is performed without stopping the line.

FIG. 3 shows the coil C wound on the winding machine 4 after the winding rear end S ₁ is shaped as described above.
The tip shape of is shown. As described above, the shape-processed portion applied to the rear end portion S ₁ when winding the strip steel plate S on the winder 4 acts as a lead portion when the coil C is unwound and passed through the winding machine 4, and thus, as in the conventional case. In addition, it is not necessary to perform the shape treatment of the tip portion again, and therefore, the processing equipment therefor is also unnecessary.

[0016]

The present invention has the following effects.

(1) Regarding the coil to be passed through to the next step, the outer coil portion of the coil is warped on the exit side of the previous step, so that no shape treatment is required for rewinding and passing the coil.

(2) No special and expensive equipment is required as equipment for shape processing of the rear end in the previous process.

(3) Since no flaw is formed on the surface during the shape treatment, the quality of the product plate is improved.

[Brief description of drawings]

FIG. 1 shows an example of equipment to which the present invention is applied.

FIG. 2 shows processing steps for forming a cambered portion on a rear end of a coil to be wound.

FIG. 3 shows the tip shape of a coil C formed according to the present invention.

[Explanation of symbols]

1 Bridle Roll 2 Euler 3 Shearing Machine 4 Bending Roll 5 Tension Roll 6 Snubber Roll 7 Tail Edge Correction Roll

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tamio Fujita 1-1, Toibata-cho, Tobata-ku, Kitakyushu-shi, Fukuoka New Nippon Steel Corporation Yawata Works

Claims (1)

[Claims] 1. A coil for a threading plate, wherein when a band-shaped material after continuous processing is wound to form a coil, the rear end portion of the band-shaped material is subjected to a shape treatment for a rewinding threading in the next step. Shape processing method of the tip.