JPS5956973A - Side clipping method of strip during traveling - Google Patents

Abstract

PURPOSE:To perform side clipping without stopping a strip line by moving linearly torch parts which generate an air plasma arc back and forth in the direction at right angles to the traveling direction of a strip, and cutting both welded end sides of the broad side strip to an arc shape. CONSTITUTION:A strip S joined with strips S1, S2 having different widths is run in a direction F and when the weld point W thereof approaches a side clipping device A, an AC motor 7 is operated by a timer, and a rotary disc 3 is turned by the revolution of a main shaft 6, by which torch parts 1 are positioned at both side edges of the strip S1. The shoulder parts of the broad strip S2 are cut by the air plasma arc of the parts 1. When the disc 3 is rotated in an arrow direction from the point of the time when the point W passes the shaft 6, the parts 1 make the movement parting from the line center and cut the shoulder parts of the strip S2 in such a way that the cutting line C forms an arc shape.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for sawing off a wide strip of diagonal tip 11 with a running r1 in a diagonal strip welded in a slip I-slip processing line.

In the slip-slip processing line, it is located downstream of the welding machine that welds different inner strips, so that both sides of the welding area are welded so that the slip-slip 1 general feed is smooth and the rear surface is adjusted. A side 1 clipping shear is installed as a side clipping device to facilitate 1-rimming adjustment during change.

Conventionally, in the Zydoclinoping method using this nya, a cutter made of tool steel, for example, constitutes two blades and a lower blade, and this pair of upper and lower blades is used as a workzer (F and 1-
The main body is configured so that it is included in the "Live XI 1'".

This main body can be moved independently on the work side 1° side and 1 live side 1 side, and when cutting, the main body is moved so that it fits during the 1-slip, and the lower blade is moved against the fixed lower blade using a hydraulic cylinder. The strip is cut by raising and lowering it.

At this time, an equalizer 9' mechanism is provided so that both the work side and drive side upper blades are driven simultaneously.

However, such conventional zydoclinoping methods have the following drawbacks due to their structure.

i) Temporarily stop the slip line and cut it (";
' , +J-cut 1, so the work efficiency decreases.

ii)'Nok Sai 1.1-Raipuri-i) Move both blades to the cutting position, and raise and lower the two knives, so it takes time.

111) If the slip line is not stopped (9), the cutter cannot be replaced, and the line is stopped every time the cutter is replaced, resulting in poor productivity.

iv) The knife replacement described in (iii) above requires a high degree of ellipse, which takes time, and also causes a decrease in productivity.

(2) Since it is not possible to stop the rear line during cutting, a plate storage device is required that can absorb the strip movement (2) corresponding to the distance between 1 and 2.

The present invention is an attempt to solve the problems of the conventional 9-id clipping method as described below. The purpose is to provide a clipping method for rip running.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an explanation will be given based on FIGS. 1 and 2 of the accompanying drawings showing an outline of the apparatus used in the method according to the present invention. Both figures schematically show a jet clipping device (A) for realizing the method according to the present invention. '
fj5, (2) 1-chi f511 (1)' t
Mllll Nitori]su, other crime 1 is a rotating disc that can be rotated freely (
3) is a connecting rod that is pivotally connected to. The rotating disk (3) has a shaft (
4), and the lower end of the coaxial shaft (4) is replaced by a bevel gear (5). (7) is the C motor that forms the drive part, and the output of the same motor Φd + ('7a) fitting/twisting (F3
) is connected to the main shaft (6), and the main shaft has a bevel gear (9) that meshes with the bevel gear (5).

Furthermore, (10) is a timer and a welding machine (U shown in the figure).
Slip (31) of the different medium welded by (S
The AC motor (7) is configured to operate when the welding point (W) of 2) comes to a predetermined position. Manoko welding point (W
) is detected by a sensor (not shown), and a timer (1
A control device (not shown) is separately provided to issue commands to 0).

In this embodiment, the main shaft (6) is used to connect the 1-
- The motion of Mibu (1) is symmetrical with respect to the line.) --j-fiy o), rotation Fr'UFj, (3
) and other elements are placed on both sides of the line.

In the clipping device (Δ) having the above configuration, the approach of the welding point 1) of the lip (S) causes the welding point 1) to reach the welding point 1). The device is detected by a sensor (not shown), and a control device (not shown) issues a command to the evening time (10), and the same evening time (10) activates the ΔCC morph 7), during -1L. The rotation of Il+ (cl creates a rotating disk (
3) is rotated, and the L--bottom part (1, 1 is set to be at both side edge positions of the slip (S,) as shown in Figure 1.This)--bottom part (1 ) movement amount G, (, 1 rotation of the same rotation circle (
3), and the stroke adjustment of 1.-Mibu (1) is based on the rotation amount of the rotating plate (3) and the slip
) can be easily carried out by a control device using a sensor that detects the distance between both edges of the 11] Shoulder part of wide strip (S2) total 1m
- By Mibu (]) 1117. This is the welding point (
From the point at which W) passes through the main shaft (6)'-, the rotating disk is rotated in the direction of the arrow in the figure and shifted by one width H,45,1.-
・y Part (1) From the crawling/ino center! I can get 1ill.
), and since the strip (S) itself is running, it can be cut out as shown in Figure 3.

This tlJ disconnection (C) has a circular arc shape, and it depends on the running speed of the strip (S) and the moving speed of the 1--section (1) (angular velocity of the rotating disk (3)). If one of them is an accelerated motion, then the relative velocity of the two causes l・-
Plasma arc strip by Mibu ill (S2)
The <1Flt trace drawn above will be arc-shaped.

In addition, this zytoclinoping shape, that is, the truncation line (C
) is due to the conveyance speed of the strip (S) and the relative speed to the angular velocity of the rotating disk (3) as described in Section 2.
It can be changed arbitrarily depending on the length of the connecting rod (2) and the size of one row of the rotating disk (comb), and C++ can be inserted into the inner fan of the roll of the rolling mill located on the downstream side of the line. I can do it.

In the above embodiments, the explanation was based on a mechanism in which the arc interlocking is performed in the near plasma generation part, but the generation of relative speed in the running direction of the stroke and the forward and backward movement of the running It can also be done by a separate mechanism.

Below-1-1 The results of the present invention are summarized as follows.

(1) Slip without stopping the slip line
Clipping can occur while the strip is running, which reduces the operating rate after cutting the strip.
) J-use go student is heading towards.

(2) There is no need to stop the rear line for a long time, so n
The scale of the 'i' temporary device can be reduced, and the line length can be shortened.

(3) Since air plasma is used, the service life can be clearly detected while observing the generation status of the plasma arc, and waste caused by replacement can be eliminated and replacement can be carried out efficiently.

[Brief explanation of the drawing]

1 and 2 are a plan view and a front view schematically showing the cutting device according to the present invention, and FIG. 3 is a plan view showing the shape of the strip after being cut by the tongue. be. +11 1--tongue (air plasma generation means) (2) connection 1) (3) rotating disk (4) shaft (6) main shaft (7) AC':r:-ri (10) timer (S) I. Lipp (W) Applicant for the Patent as a Concubine Nippon Steel Corporation Agent Masu Tegori (2 people) Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. In the slip 1" clipping method of cutting both sides of the welded end of the wide slip 1-lip among the different I11 varnished 1-lips welded in the slip 1-lip processing line,
- An air plasma arc is generated as a shearing object from the 1-IJ part, and the 1-IJ part is
A reciprocating linear motion is made in a direction perpendicular to the running direction of the knob, and the relative speed between the reciprocating linear motion of 1-chi Ql and the running motion of slips 1 to 1 is determined. S1 characterized by cutting the sides into an arc shape
- Clipping method during lip running.