JPH02155587A - Side trimmer device - Google Patents

Abstract

PURPOSE:To execute the side trimming with a high yield by providing a running device which runs in parallel to a line, and also, at the same speed on a supporting body, and providing a width direction moving device for adjusting the trimming width on right and left laser cutting devices. CONSTITUTION:A planer-type supporting body 22 is installed so as to cross an iron steel line 9. On the left and the right of this beam part 23, laser cutting devices 24, 25 are provided. By these laser cutting devices 24, 25, both sides of a plate material on the line 9 is brought to trimming. In this state, a line direction running device 27 which runs in parallel to the line and at the speed as the line speed is provided on the supporting body 22. Also, a width direction moving device 28 is provided and the laser cutting devices 24, 25 are moved in the width direction of the line 9, and the trimming width is adjusted. In such a way, the side trimming can be executed with high yield.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a side trimmer device installed on a plate line such as a steel line.

(Prior Art) The general layout of a line in which a side trimmer device is installed is shown in FIG.
is connected to a single plate by a shear 3 that cuts its leading and trailing ends, a welding machine 4 that connects the tail end of the leading plate and the tip of the trailing plate, and passes through a processing device 5 that performs some processing on this plate. After passing through a side trimmer device 6 for trimming both sides of the processed board material and a shear 7 for cutting the processed board material into a predetermined length, it is wound up by a winder 8.

In such a line, the conventional side trimmer device 6
had the configuration shown in Figure 6.

In the conventional side trimmer device 6 shown in FIG. 6, blade holders 10.11 are arranged on the left and right sides of the line 9, and these left and right blade holders 10.11 are connected to holder opening/closing devices 12.13.
It is supported so that the left and right opening/closing width can be adjusted.

In addition, each blade holder 10.11 has an upper blade 14 and a lower blade 15.
The upper blade 14 and the lower blade 15 of the left and right blade holders 10.1.1 are used to cut both sides of the plate material on the line 9 for trimming.

In addition, each blade holder 10.11 can rotate around its center point, and when performing side trimming when welding the leading plate material 16 and the trailing plate material 17 with different widths in line 9, As shown in FIG. 7, the trimming width is changed between runs without stopping the plate material by a combination of the rotation of the blade holder 10.11 and the opening/closing of the holder opening/closing device 12.13.

(Problem to be Solved by the Invention) However, in such a conventional side trimmer device, when there is a change in the width of the leading plate material 16 and the trailing plate material 17, the trimming line 18 is set at the welded portion 19 where the width is wide. Since the row plate material 17 side is cut diagonally, an off-gauge portion 20 is generated on the trailing board material 17 side, resulting in a problem in that material is wasted.

This invention was made in view of such conventional problems, and even if there is a change in width between the preceding plate and the following plate, it is possible to continuously cut the plate without creating an off-gauge part. An object of the present invention is to provide a side trimmer device that can perform trimming.

[Structure of the Invention] (Means for Solving the Problems) This invention provides laser cutting devices on the left and right sides of the beam portion of a gate-shaped support installed so as to straddle the line, and the left and right laser cutting devices In a side trimmer device for trimming both sides of a plate material on a line, a line direction traveling device that can run parallel to the line at the same speed as the line speed is provided on the support body, and the left and right laser cutting devices are provided in the width direction of the line. A width direction moving device is provided which can move the trimming width and adjust the trimming width.

(Function) In the side trimmer device of the present invention, the trimming width of the laser cutting devices provided on the left and right sides of the beam portion of the gate-shaped support body is adjusted by the width direction moving device, and the width of the plate material running on the line is adjusted. Side trimming can be done to suit.

In addition, when narrow and wide plates are welded together and flow continuously on the line, when the welded parts of the front and rear plates come to the cutting position of the left and right laser cutting devices, the machine moves in the line direction. The device moves the support at the same speed as the line speed, and the width direction moving device adjusts the trimming width of the left and right laser cutting devices, allowing the left and right laser cutting devices to align with the plate material on the line. Set the relative speed to O,
The laser cutting device can perform side trimming along the outline of the welded portion of the plate material, and even if the width of the plate material is changed, the occurrence of suffocation can be suppressed.

(Example) Hereinafter, embodiments of the present invention will be explained in detail with reference to the drawings.

FIG. 1 shows a side trimmer device 21 according to an embodiment of the present invention, and this side trimmer device 21 is installed at the position of the side trimmer device 6 in the configuration of line 9 shown in FIG. 5 as a conventional example. It is something that will be done.

This side trimmer device 21 includes a gate-shaped support 22 installed so as to straddle the line 9, and a laser beam provided movably in the width direction of the line 9 with respect to a beam portion 23 of the support 22. A cutting device 24 , 25 , a width direction moving device 26 that moves the left and right laser cutting devices 24 , 25 in the width direction of the line 9 to adjust the trimming width, and a support 22 that moves the support body 22 parallel to the line 9 to adjust the line speed. It is equipped with a line direction traveling device 27 that can run at the same speed and a control device 28.

The control device 28 controls the laser cutting operation of the laser cutting device 24.25 as shown in FIG.
5 trimming width adjustment operation and line direction traveling device 27
A control device 28 is provided to control line direction traveling operation.

Further, the control device 28 includes a sensor 29 for detecting a change in the width of the slat running on the line 9.

The operation of the side trimmer device having the above configuration will be described next.

If there is no change in the width of the plate material running on the line 9, the control device 28 adjusts the position of the laser cutting devices 24, 25 so that the width direction moving device 26 has a predetermined trimming width, and the left and right laser cutting devices 24 A laser beam is emitted from the .25 toward the plate material on line 9, and the left and right sides of the plate material are continuously trimmed.

Side view when the plate material flowing on the line 9 flows continuously with the trailing plate material 17 wider by δ being welded to the tail end of the narrower leading plate material 16 by the welding part 19, as shown in FIG. The trimming operation is as follows. As shown in FIG. 4, the sensor 29 detects the welding part 19 at timing to
By detecting this, the control device 28 gives a start command to the line direction traveling device 27 to make the support body 22 travel in the line direction at the line speed, and the support body 22 reaches a speed equal to the line speed Vo at timing t1. Rise. The acceleration time (tl-to) during which the support 22 rises from a stopped state to the line speed Vo is uniquely determined by the device, and therefore the sensor 29 detects the weld 19 at the trimming width change point. The points are assumed to be set so that when the support 22 reaches a speed equal to the line speed Vo, exactly one weld is located directly below the laser cutting device 24,25.

In this way, the support 22 is connected to the line direction running device 27.
The timing t when the line speed became the same as Vo
1, the control device 28 issues a command to move the laser cutting device 24, 25 in the width direction to the width direction moving device 26, and opens the trimming width by 672 minutes to the left and right to a distance commensurate with the width of the trailing plate material 17.

When this trimming width adjustment is completed at timing t2,
The control device 28 issues a stop command to the line direction traveling device 27, and after the support body 22 stops at timing t3, starts the line direction traveling device 27 in the reverse direction in order to return it to its original position before traveling. Then, it is stopped at timing t4 when the support body 22 reaches its original position.

By controlling the width direction moving direction device 26 and the line direction traveling device 27 in this way, the relative speed in the line direction between the laser cutting device 24, 25 and the cutting material on the line 9 is controlled between timings t1 and t2. During this time (tl-t+), the width direction moving device 6 opens the laser cutting device 24.25 to the left and right to widen the trimming width by δ, resulting in the trimming line 30 shown in FIG. As a result, trimming can be performed along the respective outlines of the leading plate material 16 and the trailing plate material 17, and off-gauge portions will not occur in the trimming width changing portions.

Note that the configurations of the width direction moving device 26 for the laser cutting devices 24, 25 and the line direction traveling device 27 for the support body 22 are not particularly limited, and a rotary motor drive mechanism or a near motor drive mechanism can be used.

[Effects of the Invention] As described above, according to the present invention, there is a line direction traveling device that can move the support along the line direction at the same speed as the line speed, and a line direction traveling device that moves the support body in the line width direction with respect to the left and right laser cutting devices. An adjustable width direction moving device is installed, so if the trimming width of the plate material flowing on the line changes, the line direction traveling device moves the support at the same speed as the line speed at the part where the trimming width changes. By controlling the operation to change the trimming width between the laser cutting devices using the width direction moving device while running the laser cutting device, it is possible to trim along the outline of a plate material with a large or small width without creating an off-gauge part. This allows for side trimming with a good small stop.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of one embodiment of the present invention, FIG. 2 is a circuit block diagram of the above embodiment, FIG. 3 is a plan view showing the trimming operation of the above embodiment, and FIG. 4 is a control in the above embodiment. FIG. 5 is a timing chart explaining the control operation of the device, FIG. 5 is a layout of a general steel line, FIG. 6 is a perspective view of a conventional example, and FIG. 7 is an explanatory diagram of a trimming operation according to a conventional example. 9... Steel line 17... Trailing plate material 21... Side trimmer device 23... Beam section 24.25... Laser cutty 26... Width direction moving device 27... Line direction traveling device 29...Sensor 16...Preceding plate material 19...Welding part 22...Supporting device 28...Control device agent 2'1゛Reason 3! Ko Yasuo Figure 2 Figure 3 @ 4 Figures 1 and 5

Claims (1)

[Claims] In the side trimmer device, a laser cutting device is provided on the left and right sides of a beam portion of a gate-shaped support installed so as to straddle the line, and the side trimmer device trims both sides of the plate material on the line with the left and right laser cutting devices. a line direction traveling device that can run parallel to the line at the same speed as the line speed, and the left and right laser cutting devices are provided with width direction moving devices that can move in the width direction of the line and adjust the trimming width. Trimmer device.