JPH05181532A - Device and method for controlling cutoff of plate-shaped body - Google Patents

Abstract

PURPOSE:To shorten the time for setting a cutoff part, to automate the setting, and to control cutoff corresponding to the degree of inclination even when a slab is obliquely installed. CONSTITUTION:This device is provided with a traveling truck 2 to be traveled on rails 1 parallelly arranged above a slab S and a torch truck 3 equipped with a torch burner 4 to move the slab S orthogonally to the rails independingly of the move of the traveling truck 2 while being loaded on this traveling truck 2. Further, the device is provided with a traveling amount detector 7, rear edge detector A arranged seperately from the torch burner 4 for a distance (a) and side plane detector C attached to the torch burner 4. Moreover, the device is provided with a lateral move detector 9 to detect the orthogonal moving amount of this side plane detector C and a cutoff position arithmetic controller 8.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cutting control device and a cutting control method for a plate-like body, for example, a slab before rolling.

[0002]

2. Description of the Related Art Conventionally, a slab before rolling is transversely cut at a center position in the longitudinal direction by using, for example, a device shown in FIG. The cutting method is as follows.

First, the traveling carriage 50 is moved from the left to the right on the rail 1, and the traveling carriage from the detection of the rear end S _{1 of the} slab S to the detection of the tip S ₂ by the slab end detector 51. The running amount X _{1 of} 50 is counted by the running amount detector 52, and the total length L of the slab S is measured. Then, after measuring the total length L of the slab S, the traveling vehicle 50 is reversely moved to the left, so that Tochibana 53 refers to the slab S longitudinal midpoint, the tip of the slab edge detector 51 is a slab S S ₂
When L / 2 + a is moved after detecting the
Stop 0. Here, the display 54 is the sensor 51.
When the traveling carriage 50 moves to the right,
The display increases, and conversely, it decreases when moved to the left. The worker calculated L / 2 + a. Finally, the torch truck (not shown) to which the torch burner 53 is attached is run in the direction orthogonal to the rail 1 to cut the slab S.

[0004]

However, in the above-mentioned conventional apparatus, the traveling carriage must be moved more than 1.5 times the total length of the slab before the cutting position, in this case, the midpoint is located. , Is a loss of time. Also,
A worker must perform the calculation of L / 2 + a, which requires time and effort for the calculation. Furthermore, since the slab is usually placed on the pedestal by an overhead crane or the like, it often does not form a right angle with respect to the torch carriage, so the sled person must adjust the angle, which significantly reduces the work efficiency. It was

On the other hand, the applicant of the present invention has previously filed Japanese Patent Application Laid-Open No. 55-42.
In Japanese Patent Laid-Open No. 420, a stop control method is proposed in which the midpoint of the conveyed material is obtained and stopped in accordance with the center point of the press equipment. However, this method is effective in fixed equipment, but is not practical in the case of a trolley having a narrow width such as specifying the distance between two detectors.

[0006] Therefore, an object of the present invention is to make it possible to shorten and automate the setting of the cutting site and to control the cutting in accordance with the inclination of the slab even if it is placed diagonally. is there.

[0007]

Means for Solving the Problems The above-mentioned problems are solved by a traveling carriage that moves from a retracted position with respect to a stationary plate-like body and moves in parallel in one direction above the plate-like body, and a plate-like body mounted on the traveling carriage. Cutting means for the plate-like body that moves independently of the movement of the traveling carriage in a direction orthogonal to the moving direction, a traveling amount detector thereof, and at least two spaced apart in the direction of the traveling carriage. A plate-shaped body edge detector and a cutting portion calculation controller are provided, and the cutting portion calculation controller is one direction based on a plate-shaped body edge detection signal by a plate-shaped body edge detector behind after the traveling vehicle starts traveling. Based on the first coordinate and the second coordinate in the one direction based on the traveling amount by the traveling amount detector at the time of detecting the plate-shaped body end by the plate-shaped body end detector in front after the traveling is continued. Setting the return travel length of the traveling carriage to the position Ri and the travel amount of the travel length fraction moves the traveling vehicle returns to direction while detected by the traveling amount detector can be solved by that configured to perform control to stop.

Further, a traveling carriage that moves from a retracted position with respect to the stationary plate-like body and moves in parallel in one direction above the plate-like body, and a plate-like body mounted on the traveling carriage in a direction orthogonal to the moving direction. A cutting means for the plate-like body that moves independently of the movement of the traveling carriage, a traveling amount detector thereof, and at least two plate-like body end detectors provided separately in the direction of the traveling carriage; A plate side surface detector attached to the cutting means and a traverse movement detector for detecting the amount of movement of the side surface detector in the orthogonal direction are provided, and a plate formed by one of the plate body end detectors is provided. The presence of the plate-shaped body is detected by the rear end detection of the plate-shaped body, and in the state where the plate-shaped body is present, the side surface of the plate-shaped body is detected by the side surface detector, and the traveling amount detector at this detection time Based on the movement amount by the traverse movement amount detector The third coordinate of the side surface of No. 1 is detected, and then the traveling carriage is made to travel forward, the side surface detector is traced on the side surface of the plate-like body, and at a certain side surface position, the traveling amount detector and the traverse movement are performed. The fourth coordinate of the second side surface is detected based on the amount of movement by the amount detector, the inclination of the side surface of the plate-shaped body is detected based on the third coordinate and the fourth coordinate, and the inclination degree is determined according to the inclination degree. Then, the problem can be solved by controlling the traverse speed at the time of cutting by the cutting means.

[0009]

In the device according to the present invention, the cutting portion arithmetic controller is configured such that, after the traveling vehicle has begun to travel, the first coordinate in the one direction based on the plate-shaped body edge detection signal from the plate-shaped body edge detector at the rear side and after the traveling is continued. The second in the one direction based on the traveling amount by the traveling amount detector at the time of detecting the plate-shaped body end by the front plate-shaped body end detector
Based on the coordinates and the return travel length of the traveling carriage to a predetermined position is set, the traveling carriage is moved in the returning direction while detecting the traveling amount for the set return traveling length by the traveling amount detector. Since it is configured to move and stop it, it is possible to set the cutting site of the plate without moving the traveling carriage over the entire length of the plate and set the cutting site online. It can be carried out.

Further, in the method of the present invention, the cutting portion arithmetic controller detects the existing portion of the plate-shaped body by detecting the rear end of the plate-shaped body by one of the plate-shaped body end detectors, and the plate-shaped body is detected. In the presence state, the side surface detector detects the side surface of the plate-like body, and detects the third coordinate of the first side surface based on the amount of movement by the traveling amount detector and the transverse movement amount detector at the time of detection. Then, while the traveling carriage is moved forward, the side surface detector is traced on the side surface of the plate-shaped body, and at a certain side surface position, based on the movement amount by the traveling amount detector and the transverse movement amount detector. The second
The fourth coordinate of the side surface is detected, the inclination of the side surface of the plate-like body is detected based on the third coordinate and the fourth coordinate, and the traverse speed at the time of cutting by the cutting means is determined according to the inclination degree. Therefore, even if the plate-shaped body is placed obliquely, it is possible to perform orthogonal cutting according to the inclination degree.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to embodiments shown in the drawings. FIG. 1 is a perspective view showing a cutting control device of the present invention, and FIG. 2 is a diagram for explaining the cutting control method. 1 is a rail arranged in parallel above the slab S, and 2
Is a traveling carriage that travels on the rail. Traveling trolley 2
Is provided with an opening 2a, and a torch carriage 3 is mounted across the opening 2a so as to move independently of the movement of the traveling carriage 2 in a direction orthogonal to the rails 1, 1. .. A torch burner 4 penetrating through the opening 2a is attached to the torch carriage 3, and the rear end detector A is separated from the torch burner 4 connected to the gas hose 5 for oxygen or the like by a distance of b by a distance of a. A tip detector B is arranged at a distance. A side surface detector C is attached to the torch burner 4, and the torch burner 4 and the side surface detector C can be moved up and down by an elevating drive device 6 as shown in FIG.

As the rear end detector A, the front end detector B and the side face detector C, an air micrometer can be used in addition to an ultrasonic sensor, a contact type earth relay or the like. This air micrometer, as shown in FIG. 7, has three pipes 10A, 10B, 1 for supplying compressed air.
By arranging 0C and measuring the pressure (back pressure),
It is possible to know the distance from the slab S and the presence or absence of the slab S. Further, by moving the intermediate pipe 10B to the left and right so as to have the intermediate pressure of the pipes 10A and 10C on both sides, the slab S is moved. The end position can be detected.

The trailing edge detector A detects the trailing edge S _{1 of the} slab S as it moves to the right from the retracted position with respect to the slab S carried on the slab receiving base 11.
By the ON timing signal of the trailing edge detector A, the counter of the traveling amount detector 7 starts counting the movement amount X ₁ of the traveling carriage 2.

Further, when the traveling vehicle 2 moves to the right,
The tip detector B is adapted to detect the tip S _{2 of the} slab S, and when the tip detector B detects the tip S _{2 of the} slab S, the movement amount X obtained from the counter of the travel amount detector 7 ₁ and the rear end detector a and the distal detector distance information a of B from Tochibana 4, in is b, by performing the calculation of X ₁ + a + b by cleavage sites arithmetic controller 8, to calculate the slab S total length L You can Also, the tip detector B
Slabs but at the time of detecting the leading edge S ₂ of the slab S, OFF timing signal is sent to the counter of the traveling amount detector 7, after resetting transferred count value X ₁ in the memory, at the counter of the traveling amount detector 7 The counting of the backward movement amount X ₂ of the carriage ₂ after detecting the tip S ₂ of S is started.

When the torch burner 4 is set at the midpoint in the longitudinal direction of the slab S, the moving amount X ₁ , X obtained from the counter of the running amount detector 7 is controlled by the cutting portion operation controller 8.
₂ and Tochibana rear detector A and the distal detector distance information a of B from 4, at is b, performs the operation of _{(X 1 + a-b)} / 2, a digital display (see Figure 3). And
The calculated value of (X ₁ + a−b) / 2 is compared with the movement amount X ₂ that the tip detector B has moved from the tip S _{2 of the} slab S, and the deviation amount is sent to the drive system of the traveling carriage 2. , The carriage 2 is decelerated and stopped so that the deviation amount becomes 0, and the torch burner 4 is controlled to point to the midpoint of the slab S. By the way, in the disconnection control device of the present invention, the travel distance of the traveling carriage 2 can be reduced by (a + 2b) as compared with the conventional single detector.

After the start of counting, the counter of the traveling amount detector 7 increases when the traveling carriage 2 moves to the right and decreases when the traveling carriage 2 moves to the left, and counts according to the position of the traveling carriage 2. There is. Therefore, X ₂ in FIG. 3 is a minus sign.

Next, the cutting control method of the present invention is preferably applied when the slab is carried in at an angle. The steps from the detection of the inclination of the slab to the cutting control in this case will be described with reference to FIGS. 4 and 5. First, in the process in which the traveling carriage 2 moves to the right from the retracted position with respect to the slab S, the torch carriage 3 is moved to the approximate center in advance. And the tip detector B is the slab S
When the rear end S ₁ is detected and the side surface detector C is present on the slab S, the torch burner 4 is lowered by the lifting drive device 6 and the side surface detector C is moved to the side surface S _{3 of the} slab S.
To detect. In addition, at the time of detection of the side surface S ₃ , the cutting portion calculation controller 8 determines the third coordinate (x ₁ , x ₁ based on the movement amount by the traveling amount detector 7 and the transverse movement amount detector 9).
y ₁ ) is memorized.

After that, the traveling carriage 2 is moved to the right and the side surface detector C is traced on the side surface S _{3 of the} slab S, and at a certain side surface S ₃ position, the cutting amount arithmetic controller 8 causes the traveling amount detector 7 to travel. And the fourth coordinate (x ₂ , y ₂ ) is stored based on the amount of movement by the transverse movement amount detector 9.

Finally, based on the third coordinate (x ₁ , y ₁ ) and the fourth coordinate (x ₂ , y ₂ ), the side surface S _{3 of the} slab S is
The inclination of the torch burner 4 is detected according to this inclination.
The traveling speed and traveling direction of the traveling carriage 2 at the time of cutting by are controlled when the torch carriage 3 traverses.

The larger the distances a and b in this embodiment, the smaller the movement amount of the traveling carriage 2. Further, in the present embodiment, the slab is cut at the center position in the longitudinal direction, but it can be used in the case of ⅓, ¼ cutting or when specifying the distance from the end of the slab.

[0021]

As described above, according to the present invention, it is possible to shorten and automate the setting of the cutting site, and control the cutting according to the inclination of the slab even if it is placed diagonally. You can

[Brief description of drawings]

FIG. 1 is a perspective view showing a cutting control device of the present invention.

FIG. 2 is a diagram illustrating a cutting control method of the present invention.

FIG. 3 is a block diagram showing a disconnection control method of the present invention.

FIG. 4 is a diagram illustrating a method of detecting a slab inclination degree.

5 is a control system diagram of the apparatus of FIG. 1. FIG.

FIG. 6 is a side view showing a torch burner according to the present invention.

FIG. 7 is a side view showing an air micrometer according to the present invention.

FIG. 8 is a diagram illustrating a conventional cutting method.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rail, 2 ... Traveling carriage, 3 ... Torch carriage, 4 ... Torch burner, 6 ... Elevating drive device, 7 ... Running amount detector, 8 ...
Cutting part arithmetic controller, 9 ... Traverse movement amount detector, A ... Rear end detector, B ... Tip detector, C ... Side detector, S ... Slab

Claims (2)

[Claims] 1. A traveling carriage that moves from a retracted position relative to a stationary plate-like body and moves in parallel in one direction above the plate-like body, and a plate-like body mounted on the traveling carriage in a direction orthogonal to the moving direction. A cutting means for the plate-like body that moves independently of the movement of the traveling carriage, a traveling amount detector thereof, and at least two plate-like body end detectors provided separately in the direction of the traveling carriage; A cutting part calculation controller, wherein the cutting part calculation controller is configured to continue the traveling with the first coordinate in the one direction based on the plate-shaped body end detection signal from the plate-shaped body end detector located behind after the traveling vehicle starts traveling. Back travel of the traveling vehicle to a predetermined position based on the second coordinate in the one direction based on the traveling amount by the traveling amount detector at the time of detecting the plate-shaped body end by the rear-front plate-shaped body end detector Set the length and set the amount of travel for the set return travel length A cutting control device for a plate-shaped body, which is configured to perform control for moving a traveling carriage in a returning direction and stopping the traveling carriage while detecting it by a traveling amount detector. 2. A traveling carriage that moves from a retracted position relative to a stationary plate-like body and moves in parallel in one direction above the plate-like body, and a plate-like body mounted on the traveling carriage in a direction orthogonal to the moving direction. A cutting means for the plate-like body that moves independently of the movement of the traveling carriage, a traveling amount detector thereof, and at least two plate-like body end detectors provided separately in the direction of the traveling carriage; A plate-shaped side surface detector attached to the cutting means and a transverse movement detector that detects the amount of movement of the side surface detector in the orthogonal direction are provided, and the plate by one of the plate-shaped body end detectors is provided. Detecting the presence site of the plate-shaped body by the rear end detection of the plate-shaped body, in the presence state of the plate-shaped body, to detect the side surface of the plate-shaped body by the side surface detector,
Based on the movement amount by the traveling amount detector and the traverse movement amount detector at the time of this detection, the third value of the first side surface is determined.
The coordinates are detected, and then the traveling carriage is made to travel forward, and the side surface detector is traced on the side surface of the plate-like body, and at a certain side surface position, the movement amount by the traveling amount detector and the traverse movement amount detector. The fourth coordinate of the second side surface is detected based on, and the inclination of the side surface of the plate-shaped body is detected based on the third coordinate and the fourth coordinate. A method for controlling cutting of a plate-shaped body, comprising controlling the transverse speed at the time of cutting.