JPS6289550A - Continuously cast bar cutter - Google Patents

Abstract

PURPOSE:To cut cast bars always to an exact length by gripping and moving a cast bar array with another synchronized clamping mechanism during the time when the mechanism for gripping and cutting the cast bar array delivered by pinch rolls by means of the clamps of a moving stand returns to the home position after cutting. CONSTITUTION:The array 2 of the cast bars 2a discharged from the casting mold 1a array of a continuous casting device 1 and delivered by the pinch rollers 4 is securely gripped by the forward and backward clamping mechanism 7 on the synchronously moving stand 5 and is but by a cutting machine 6 when said machine moves. The clamping mechanism 7 is opened after cutting and the cast bar array 2 is gripped and moved by another synchronized clamping mechanism 10 existing behind the pinch rollers 4 during the time when the moving stand 5 returns to the home position. Since the cast bar array 2 is always securely gripped and synchronously moved, the cutting length is always exact and the need for the secondary finish cutting is eliminated. The entire part of the mechanism is made simple.

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention relates to a running cutting device for continuously cast metal rods.
The present invention relates to a continuous cast rod cutting device which has high cutting dimensional accuracy and low cutting efficiency and is suitable for cutting parallel cast rod rows consisting of a plurality of continuously cast rods to a fixed length during transportation. [Prior art] Casting rod rows formed in a multi-strand continuous casting device are held in parallel by a pitch row 511PI.
) f! It is drawn out and transported by the J-feeding means at the same speed as the casting speed. Conventionally, the following method has been used to cut the cast rod array to obtain cast rods of a predetermined length. That is, a movable stand that reciprocates along the cast rod row is provided, and a cutting machine that moves back and forth in a direction perpendicular to the transport direction of the cast rod row and a cutting machine that moves back and forth in a direction perpendicular to the transport direction of the cast rod row are installed on this movable stand, and the cast rod row is moved at appropriate times. Equipped with a movable frame clamp mechanism that grips in parallel,
While the cutting machine is operating, the movable pedestal clamp mechanism grips the cast rod row and moves the movable pedestal as the cast rod row is transferred, and when the cutting machine is finished operating, the movable pedestal clamp mechanism is released. Then, the movable pedestal moves back to its original position, and the movable pedestal clamp mechanism grips the cast rod row again, and the operation of the cutting machine is started. By repeating this process, the transferred cast rod rows are successively cut. Regarding the above-mentioned methods, for example, a method for making the return distance of a movable stand accurate (Japanese Patent Publication No. 56-3148), a method for holding a cutting clamp for a row of cast bars (Japanese Patent Publication No. 56-5147)
In most of these methods, when the movable stand returns, the dimensions of the cast bar array are accurately measured, and the length of the cast bar to be cut is set to a predetermined length. Alternatively, the present invention relates to the gripping of a cast rod row by a movable pedestal clamp mechanism that prevents displacement of the movable gantry and the cast rod row. When the above-mentioned cutting is fusion cutting, it is usually cut to a length slightly longer than the specified length (cutting, and then secondary finish cutting using a mechanical cutter to produce a cast rod of the specified length; however, when cutting with a mechanical cutter trap, There is no need to carry out secondary finish cutting if the dimension is set to S. However, the cast rod rows drawn out from the multi-strand continuous casting device are transported by a transport means such as pinch rollers that are held in parallel. In principle, each casting rod is transferred at the same speed, but in reality, slippage occurs between the pinch roller and each casting rod, resulting in a difference in the transfer speed of each casting rod.
A shift occurs in the length direction. Therefore, even if the return distance of the movable frame is made accurate, the length of each cast rod to be cut is not necessarily the same. [Problems to be Solved by the Invention] In view of the above-mentioned circumstances, the present invention provides a continuous casting rod that can always obtain cast rods with predetermined and accurate dimensions without each casting rod in a row of casting rods shifting from each other. The purpose of this invention is to provide a cutting device. [Means for solving the problems] The present invention has been made to achieve the above objects,
The gist of the system is to have a movable pedestal that reciprocates along the cast rod row drawn out from the continuous casting machine, and a movable pedestal mounted on this movable pedestal that reciprocates the cast rod row in a direction perpendicular to the transport direction. A cutting machine is attached to the movable frame, and the operation of the cutting machine is neutralized by gripping the cast rod row and moving the movable frame synchronously with the cast rod row, and releasing it after the cutting machine has finished operating. A 1L continuous casting bar cutting device comprising a movable frame clamping mechanism that allows the movable frame to move in the direction opposite to the direction of transport of the cast rod row! The movable pedestal clamp mechanism is provided between the continuous casting device and the movable pedestal, and while the movable pedestal clamp mechanism is released, the movable pedestal clamp mechanism grips the casting rod row and moves in synchronization with the casting rod row. The continuous cast rod cutting device is equipped with a synchronized clamping mechanism that is released and moves in a direction opposite to the transport direction of the cast rod row while the clamping device grips the cast rod row. [Function] Since the continuously cast rod cutting device according to the present invention has the above-described configuration, during cutting, the movable frame clamp mechanism
In addition, while the movable frame clamp mechanism is open, the cast rod rows are firmly gripped by the synchronized clamp mechanism, so that the casting rods are always fixed to each other, and the sliding of the gripping parts such as pinch rollers prevents the casting rods from slipping. Therefore, by using a mechanical cutting machine, a cast bar of a given length can be obtained without performing secondary finishing cuts. In addition, in the device of the present invention, the movable frame clamp machine groove and the synchronized clamp a! Since the casting rod rows can be transferred alternately and without interruption in synchronization with the casting speed, conventional transfer means such as pinch rollers can be omitted.

【Example】

The present invention will be described below with reference to the drawings, but the present invention is not limited thereto. 1 to 3 show an embodiment of a continuously cast rod cutting device according to the present invention, with FIG. 1 being a side view and FIG. 2 being a plan view. The code 1 in the diagram is! In a multi-strand horizontal continuous casting device, molds 1a are lined up horizontally in a row, and continuously cast casting rods 2a are pulled out as a row of casting rods 2 arranged in parallel. Casting rod row 2 mold 1
A guide roller 3 for supporting and guiding the &... is provided near the exit of the casting rod, and adjacent to the busy guide roller, each of the above-mentioned cast rods is sandwiched between the upper and lower rollers, and the rotational driving force of the rollers causes the above-mentioned Pinch rollers 4 are provided that pull out and transfer the cast rod row at the same speed as the casting speed of the caster [1a...]. Further, on the side in the transfer direction of the pinch roller 4, there is a cast rod row 2.
A movable pedestal 5 that reciprocates along is provided. This movable stand 5 has rails (not shown) attached to the stand.
a cutting machine 6 that reciprocates across the cast rod row in a direction perpendicular to the cast rod row, and is rotationally driven by a motor 6; , and an oblonger 8 that defines the cutting length of the cast rod row, and at the bottom there is a drive that moves the movable pedestal 5 along the cast rod row 2 or frees its movement at the appropriate time. A mechanism 9 is provided. As for 9, a method of driving at a constant speed on a rail (not shown) by a servo motor, a method of moving at a constant speed by a hydraulic cylinder, etc. is adopted. Further, between the pinch roller 4 and the movable frame 5, the movable frame 5 reciprocates along the cast rod row 2, and in synchronization with the movable frame clamp mechanism 7, the cast rod row 2 is firmly pressed and gripped by a hydraulic mechanism. Alternatively, a synchronized clap mechanism 10 that opens is provided. A drive mechanism 11 is provided at the bottom of the synchronized clamp mechanism 10 for synchronized movement of the synchronized clamp mechanism 10 along the casting rod row 2 or for making the movement free. ! l
The K movement mechanism 11 is similar to the drive mechanism 9 described above. Incidentally, support rollers 12 are appropriately arranged at positions that do not impede the movement of the movable frame 5 and the synchronized clap mechanism IO. Next, the operation of the continuous cast rod cutting device configured as described above will be explained. The cast rod row 2 coming out of the mold 1 &... is guided by the guide roller 3
It is supported and guided by the pinch rollers 4, and is then held in parallel by the pinch rollers 4, and is rotated at a predetermined speed (
casting speed). The cast rod row 2 to be transferred is firmly pressed and gripped by a synchronized clamping mechanism IO that is waiting in the vicinity of the pinch roller 4. At this time, the drive mechanism 11 is free with respect to the tuned clamp mechanism 10, and the tuned clamp mechanism IO is
It moves as the casting rod row 2 is transferred. During this time, the movable gantry 5 is moved by the drive mechanism 9 in the direction of the pinch roller 4 and stops when it reaches a predetermined position, and at the same time the drive mechanism 9 becomes free with respect to the movable gantry 5 and enters a standby state. The tips of the cast rod rows 2 being transferred are connected to the movable frame 5.
At the same time as it comes into contact with the oblonger 8 attached to the movable frame clamp mechanism 7, the cast rod row 2 is gripped. Next, the cutting machine 6 is operated, and since the movable pedestal 5 moves synchronously with the transfer of the cast rod row 2, each of the cast rods 2a of the cast rod row 2 is cut in a direction perpendicular to the conveying direction. When cutting is completed, the cutting machine 6 returns to its original position, and at the same time, the movable frame clamping mechanism 7 is released, and the movable frame 5 is moved in the direction of the pinch rollers 4 by the drive mechanism 9, and stops at a predetermined position to be in a standby state. becomes. The synchronized clamping mechanism lO releases the casting rod row 2 immediately after the movable frame clamping mechanism 7 grips the casting rod row 2, is moved by the drive mechanism 11 in the direction of the pinch roller 4, and is held at a predetermined position. It stops, and the drive mechanism 11 becomes free and enters a standby state. The synchronized clamping mechanism 10 in the standby state is activated when the cutter 6 finishes cutting the cast rod row 2 and immediately before the movable frame clamp mechanism 7 releases the cast rod row 2.
is held and moves along with the transfer of the casting rod row 2. That is, the operation of the main parts of the cutting device is as shown in FIG. As is clear from the figure, the casting rod row 2 is
Since the casting rods 2a are firmly held by either the clamping mechanism 7 or 10 at all times, the casting rods 2a do not shift from each other in the longitudinal direction. The above-mentioned operation is caused by the contact between the oblonger 8 and the tip of the casting rod row 2, the signal accompanying the completion of cutting by the cutting machine 6, or the clamp &
This is done in a known manner using secondary signals, limit switches, etc. by actuation of system 7.10. Further, the oblong device 8 is not limited to the above explanation, and the casting rod 2 &
If it is possible to keep the length constant, any of them can be used. Furthermore, in the above description, the movable frame 5 is placed on standby to reduce the contact shock between the oblong tool 8 and the cast rod row 2 (However, by using a buffer, the shock is weakened and the movable frame 5 is placed on standby. In the return process of the cast rods 2, the pinch rollers can be brought into contact with each other.In the above embodiment, a pinch roller is used as a driving source for transporting the casting rod row 2, but in another embodiment of the present invention, a pinch roller is not provided. It can be transported by the drive mechanism arcs 9 and 11 of the movable frame 5 and the synchronized clamping mechanism 10. That is, while the movable frame clamping mechanism 7 and the synchronized clamping mechanism 10 respectively grip the casting rod row 2, the corresponding The drive mechanism 9 or 11 is activated to move the cast rod row 2 in the transport direction in synchronization with the casting speed.Since both of the clamp mechanisms mentioned above alternately grip and move the cast rod row 2 without interruption, the cast rod row 2 It acts as a stable transfer drive source for row 2. [Effect] As described above, the continuous cast bar cutting device according to the present invention has the following effects:
Since the cast rod rows are always firmly gripped by one of the clamping mechanisms, each cast rod will not shift in the length direction, and the cutting machine will cut it to the specified dimensions with high precision, allowing for secondary finishing. It is an excellent device that can obtain cast rods of a predetermined length in an extremely efficient manner without the need for cutting.Furthermore, it is possible to omit pinch rollers, etc. as a means for transporting cast rod rows, and this is an excellent device for industrial demonstration. It's advantageous.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the continuous cast bar cutting device according to the present invention, with Figure 1 being a side view, Figure 2 being a plan view, and Figure 6 showing the main parts of the device. It is a figure showing operation of one cycle. 1... Continuous casting device, l &... Mold,
2... Casting rod row, 2a... Casting rod, 3
...Guide roller, 4...Pinch roller, 5...Moveable stand, 6...Cutting machine,
6a... Motor, 7... Moving frame clamp mechanism, 8... Oblonger, 9... Drive mechanism (hydraulic cylinder), lO... ...Synchronized clamp mechanism, 11... Drive mechanism [hydraulic cylinder], 1
2...Support roller.

Claims (1)

[Claims] a movable pedestal that reciprocates along a cast rod row drawn out from a continuous casting device; a cutting machine mounted on the movable pedestal that reciprocates across the cast rod row in a direction perpendicular to the transfer direction; is attached to the movable pedestal, and when the cutting machine is in operation, the movable pedestal grasps the cast rod row and moves the movable pedestal in synchronism with the cast rod row, and after the cutting machine has finished operating, it is released and the movable pedestal is moved. A continuous casting rod cutting device comprising a movable pedestal clamping mechanism that allows the movable pedestal to move in a direction opposite to the transport direction of the cast rod row, the continuous casting rod cutting device being provided between the continuous casting device and the movable pedestal, While the gantry clamp mechanism is released, it grips the casting rod row and moves in synchronization with the casting rod row, and while the movable gantry clamp mechanism grips the casting rod row, it is released and moves the casting rod row. A continuous casting rod cutting device characterized by being equipped with a synchronized clamp mechanism that moves in a direction opposite to the direction of movement.