JPH0224177B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a running cutting device for continuously cast metal rods, and particularly for cutting parallel cast rod rows consisting of a plurality of continuously cast rods during transportation. This invention relates to a continuous cast rod cutting device suitable for cutting to a fixed length, with high cutting dimensional accuracy and excellent cutting efficiency.

[Conventional technology]

Cast rod rows formed in a multi-strand continuous casting apparatus are pulled out and transported at the same speed as the casting speed by a transfer driving means such as pinch rollers that sandwich the rods in parallel. 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 reciprocates in a direction perpendicular to the transport direction of the cast rod row is provided on this movable stand, and a cutting machine that moves the cast rod row reciprocally at appropriate times. For example, a movable pedestal clamping mechanism is provided, and while the cutting machine is operating, the movable pedestal clamping mechanism grasps the cast bar row, moves the movable pedestal as the cast bar row is transferred, and the cutting machine When the operation is completed, the movable pedestal clamp mechanism is released, the movable pedestal moves back to its original position, 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 methods, for example, a method for making the return distance of a moving stand accurate (Japanese Patent Publication No. 56-3148), a method for holding a cutting clamp for a row of cast rods (Japanese Patent Publication No. 56-3148),
56-3147), etc., and most of them accurately measure the dimensions of the cast bar row when the movable frame returns, and set the length of the cast bar to be cut to the predetermined dimension. The invention also relates to a movable pedestal clamp mechanism for gripping a cast rod row to prevent displacement between the movable pedestal and the cast rod row.

When the above-mentioned cutting is fusion cutting, it is usually cut slightly longer than the specified size, and then secondary finish cutting is performed using a mechanical cutter to obtain a cast bar of the specified length; in case of,
If the dimensions are accurate, there is no need for secondary finishing cuts.

However, the rows of cast rods pulled out from the multi-strand continuous casting device are transferred by transfer means such as pinch rollers that are held in parallel.In principle, each cast rod is transferred at the same speed, but in practice. slipping occurs between the pinch roller and each casting rod,
A difference occurs in the transport speed of each cast rod, causing a shift 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.

[Problem that the invention seeks to solve]

In view of the above circumstances, an object of the present invention is to provide a continuously cast rod cutting device that can always obtain cast rods of predetermined and accurate dimensions without causing each of the cast rods in a cast rod row to shift from each other. do.

[Means for solving problems]

The present invention has been made to achieve the above object, and the gist thereof is to provide a movable pedestal that reciprocates along a row of cast rods drawn out from a continuous casting device, and a movable pedestal that is mounted on this movable pedestal and that a cutting machine that reciprocates across the row of casting rods in a direction perpendicular to the conveying direction; A continuous casting rod cutting device comprising a movable pedestal clamp mechanism that moves synchronously with the row of cast rods and, after the operation of the cutting machine is finished, is released to allow the movable pedestal to move in a direction opposite to the transport direction 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.

[Effect]

Since the continuously cast rod cutting device according to the present invention has the above-described configuration, the movable frame clamp mechanism is used during cutting, and the synchronized clamp mechanism is used to prevent casting while the movable frame clamp mechanism is open. Since the rows of rods are firmly gripped, the cast rods are always fixed to each other, and no displacement occurs between the cast rods due to slipping of gripping parts such as pinch rollers. Therefore, by using a mechanical cutter, a cast bar of a predetermined length can be obtained without performing secondary finishing cuts.

In addition, in the apparatus of the present invention, the movable frame clamp mechanism and the synchronized clamp mechanism can alternately and seamlessly transport the cast rod array in synchronization with the casting speed, thereby omitting the conventional transport means such as pinch rollers. You can also.

〔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. Reference numeral 1 in the figure is a multi-strand horizontal continuous casting device, in which molds 1a are arranged horizontally in a row, and continuously cast casting rods 2a are formed.
... are drawn out as cast rod rows 2 arranged in parallel. Guide rollers 3 are provided near the exits of the molds 1a of the cast rod row 2 to support and guide them, and further adjacent to the guide rollers, each of the cast rods is held between upper and lower rollers, and the rollers are driven to rotate. Pinch rollers 4 are provided which use force to pull out and transport the casting rod array at the same speed as the casting speed of the molds 1a.

Furthermore, a movable frame 5 that reciprocates along the casting rod row 2 is provided on the side of the pinch roller 4 in the transfer direction. The movable frame 5 includes a cutting machine 6 guided by a rail (not shown) mounted on the frame, reciprocates across the cast rod array in a direction perpendicular to the cast rod row, and is rotationally driven by a motor 6a. , a movable frame clamp mechanism 7 that firmly presses and grips or releases the cast rod row by a hydraulic mechanism, and a length measuring device 8 that defines the length to cut the cast rod row. , a drive mechanism 9 for moving the movable frame 5 along the casting rod row 2 at appropriate times or freeing the movement thereof;
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.

Also, between the pinch roller 4 and the movable frame 5, the rollers reciprocate along the cast rod row 2, and in synchronization with the movable frame clamp mechanism 7, the cast rod row 2 is firmly fixed by a hydraulic mechanism. A synchronized clamping mechanism 10 is provided for pressing and clamping or releasing. 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. The drive mechanism 11 is similar to the drive mechanism 9 described above.

Incidentally, support rollers 12 are appropriately arranged at positions where the movements of the movable frame 5 and the synchronized clamp mechanism 10 are not hindered.

Next, the operation of the continuous cast rod cutting device configured as described above will be explained.

Casting rod rows 2 coming out of the molds 1a are supported and guided by guide rollers 3, then pinched in parallel by pinch rollers 4, and transported at a predetermined speed (casting speed) by the rotational driving force of the pinch rollers 4. be done.

The cast rod row 2 to be transferred is moved by the pinch roller 4
It is firmly pressed and gripped by the synchronized clamp mechanism 10 which is waiting in the vicinity of. At this time, the drive mechanism 11 is free with respect to the synchronized clamp mechanism 10, and the synchronized clamp mechanism 10 moves as the cast rod row 2 is transferred.

During this time, the movable gantry 5 is moved in the direction of the pinch roller 4 by the drive mechanism 9 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.

At the same time that the tip of the cast rod row 2 being transferred comes into contact with the length probe 8 attached to the movable pedestal 5, the movable pedestal clamp mechanism 7 grips the cast rod row 2. Next, the cutting machine 6 is operated, and since the movable pedestal 5 moves in synchronization 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 conveyance 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 stopped at a predetermined position. It will be in a standby state.

On the other hand, the synchronized clamp mechanism 10 releases the cast rod row 2 immediately after the movable frame clamp mechanism 7 grips the cast rod row 2, and is moved by the drive mechanism 11 in the direction of the pinch rollers 4 to a predetermined position. The drive mechanism 11 becomes free and in 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.

In other words, the operation of the main parts of the cutting device is as follows:
The result is as shown in FIG. As is clear from the figure,
Since the cast rod row 2 is firmly held by either the clamp mechanism 7 or 10 at all times, the cast rods 2a do not shift from each other in the longitudinal direction.

The above-mentioned operation is caused by the contact between the tip of the length probe 8 and the casting rod row 2, a signal accompanying the completion of cutting by the cutter 6, a secondary signal by the operation of the clamp mechanisms 7 and 10, a limit switch, etc. using a well-known method. Further, the length measuring device 8 is not limited to the one described above, and any length can be used as long as it is possible to keep the length of the casting rods 2a constant. Furthermore, in the above explanation, the movable frame 5 is kept on standby by weakening the contact shock between the length probe 8 and the casting rod row 2. In the process, it is also possible to bring them into contact.

In the above embodiment, a pinch roller was used as a drive source for transferring the casting rod row 2, but in another embodiment of the present invention, the pinch roller is not provided and each drive mechanism of the movable frame 5 and the synchronized clamp mechanism 10 is used. 9 and 11. That is, while the movable frame clamp mechanism 7 and the synchronized clamp mechanism 10 are respectively gripping the casting rod row 2, the corresponding drive mechanism 9 or 11 is operated to synchronize with the casting speed in the direction of transport of the casting rod row 2. and move it. Since both of the above-mentioned clamp mechanisms grip and move the cast rod row 2 alternately and without interruption, the cast rod row 2
Acts as a stable transfer driving source.

〔effect〕

As described above, in the continuous cast rod cutting device according to the present invention, since the cast rod array is always firmly gripped by one of the clamp mechanisms, each cast rod does not shift in the length direction. Since the cutting machine cuts the rod to predetermined dimensions with high precision, there is no need for secondary finishing cutting, and it is an excellent device that can produce cast rods of a predetermined length extremely efficiently. Furthermore, the ability to omit pinch rollers and the like as means for transporting and driving cast rod rows is extremely advantageous for industrial verification.

[Brief explanation of drawings]

Figures 1 to 3 show an embodiment of the continuous cast rod cutting device according to the present invention, with Figure 1 being a side view, Figure 2 being a plan view, and Figure 3 showing the main parts of the device. It is a figure showing operation of one cycle. 1... Continuous casting device, 1a... Mold, 2... Casting rod row, 2a... Casting rod, 3... Guide roller,
4... Pinch roller, 5... Moving frame, 6... Cutting machine, 6a... Motor, 7... Moving frame clamping mechanism, 8... Length detector, 9... Drive mechanism (hydraulic cylinder), 10... ...Synchronized clamp mechanism, 11... Drive mechanism (hydraulic cylinder), 12... Support roller.

Claims (1)

[Claims] 1. A movable pedestal that reciprocates along the cast rod row drawn out from the continuous casting device, and 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, it grips the cast rod row and moves the movable pedestal synchronously with the cast rod row, and after the cutting machine has finished operating, it is released and moved. A continuous casting rod cutting device comprising a movable cradle clamping mechanism that allows the cradle 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 cradle, While the movable pedestal clamp mechanism is released, it grips the casting rod row and moves synchronously with the casting rod row, and while the movable gantry clamp mechanism grips the casting rod row, it releases 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 of the continuous casting rod.