JPH0224178B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a running cutting device for continuously cast rods, and in particular, to a cutting device for cutting continuous cast rods, and in particular, a cutting device for cutting continuously cast rods in a parallel cast rod row consisting of a plurality of continuously cast rods. Suitable for cutting to length inside
This invention relates to a continuously cast rod cutting device that has 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 transport 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. A movable pedestal clamp mechanism is provided to grip the row of cast bars, and while the cutting machine is in operation, the movable pedestal clamp mechanism grips the row of cast rods and moves the movable pedestal along with the conveyance of the row of cast rods. 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 of accurately measuring the return distance of a movable frame (Japanese Patent Publication No. 56-3148, Japanese Patent Publication No. 59-150651), a method of gripping a movable frame clamping mechanism for a row of cast bars (Japanese Patent Publication No. 56-3147), etc. have been proposed, but most of them either accurately measure the distance to the row of casting rods when the movable stand returns and set the length of the cast rods to be cut to a predetermined dimension, or This invention relates to a movable gantry clamp mechanism for gripping a cast rod or a cast rod row to prevent misalignment with the cast rod row.

When the above-mentioned cutting is by fusing, it is usually cut to a length slightly longer than the specified size, and then a cast bar of the specified length is obtained by secondary finishing cutting using a mechanical cutting machine (hereinafter referred to as the cutting machine). When cutting with a cutting machine, there is no need to perform secondary finishing cutting if the dimensions can be made accurate.

However, the rows of cast rods pulled out from the above-mentioned multi-strand continuous casting machine are transported by a conveying means such as pinch rollers that are held in parallel, and in principle each cast rod is fed at the same speed, but in practice. In this case, slipping occurs between the pinch roller and each casting rod, causing a difference in the transport speed of each casting rod, and causing a shift in the length direction. Therefore, even if the return distance of the movable frame is made accurate, the length of each cut rod is not necessarily the same, and there is a drawback that it is not possible to obtain a cast rod of an accurate length. Furthermore, due to its characteristics, the above-mentioned cutting device can only obtain cast rods that are longer than the distance of the cast rod array transferred in the time required for cutting, but cutting metal with a cutting machine takes a relatively long time.
There was an inconvenience that it could not be cut into short cast rods.

[Problem that the invention seeks to solve]

In view of the above-mentioned circumstances, the present invention not only allows casting rods of a cast rod row to always have a predetermined and accurate size without shifting from each other, but also allows for a wide range of casting rods, from relatively short to long ones. It is an object of the present invention to provide a continuously cast rod cutting device that can obtain cast rods of desired length over a range.

[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 pulled out from a continuous casting device, a movable pedestal that is mounted on the movable pedestal, and a movable pedestal that a cutting machine that reciprocates across the row in a direction perpendicular to the transport direction;
It 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 when the cutting machine is finished operating, it is released and the movable pedestal is moved to the casting rod row. In the continuously cast bar cutting device, the cutting machine includes a movable pedestal clamp mechanism that allows the movable pedestal to move in a direction opposite to the transfer direction of the continuous cast rods, in which the cutting machine moves the movable pedestal from the outside to the inside in the width direction of the row of cast bars. It is composed of two cutting machines that cut and move toward the continuous casting device, and between the continuous casting device and the movable pedestal, the movable pedestal clamp mechanism grips the cast rod row while it is released. A synchronized clamp mechanism is provided that moves in synchronization with the cast rod row, and is released and moves in a direction opposite to the transport direction of the cast rod row while the movable gantry clamp mechanism grips the cast rod row. There is a continuous casting bar cutting equipment.

[Effect]

Since the continuously cast bar 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 released. Since the rows of rods are firmly gripped, the cast rods are always fixed to each other, and there is no displacement in the longitudinal direction between the cast rods due to slippage of gripping parts such as pinch rollers. Therefore, by using a cutter, a cast bar of a predetermined and accurate length can be obtained without performing secondary finishing cuts. Further, two cutting machines are provided facing each other, and each cutter only needs to cut half of the row of cast rods, so the time required for cutting is halved, and cast rods of desired length can be obtained over a wide range.

Furthermore, in the apparatus of the present invention, the movable frame clamping mechanism and the synchronized clamping mechanism can alternately and seamlessly transport the cast rod rows in synchronization with the casting speed, thereby eliminating the need for conventional transport means such as pinch rollers. You can also do that.

〔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 indicates a multi-strand continuous casting device, and the outlets of the molds 1a of this continuous casting device 1 are arranged horizontally in a row, and continuously cast casting rods 2a are arranged in parallel. They are served in row 2. A guide roller 3 is provided near the exit of the mold 1a of the cast rod row 2 to support and guide the cast rod.Furthermore, each of the cast rods is sandwiched between upper and lower rollers adjacent to the guide roller. A pinch roller 4 is provided which draws out and transfers the casting rod array 2 at the same speed as the casting speed of the molds 1a by the rotational driving force 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.

On the table of this movable frame 5, two rails 6, 6' are provided in a direction perpendicular to the direction of transport of the cast rod row 2.
are arranged in parallel. The rails 6, 6' are provided on the outside of the cast rod row 2 in the width direction, and are driven by motors 7a, 7a', respectively.
Cutting machines 7b and 7b' are provided which are guided by 6' and cut the cast rods of each half of the cast rod row 2. Furthermore, the movable frame 5 includes a movable frame clamp mechanism 8 that hydraulically grips or releases the cast rod row 2;
A length measuring device 9 is provided to determine the length of the cast rod row 2 to be cut, and a drive mechanism 10 is provided at the bottom to move the movable frame along the cast rod row 2 or to make the movement free. is provided. 1
0 is driven by a servo motor or the like on a rail (not shown), or by a hydraulic cylinder.

Further, between the pinch roller 4 and the movable frame 5, the roller reciprocates along the cast rod row 2 on a rail (not shown), and in synchronization with the movable frame clamp mechanism 8, the cast rod A synchronized clamping mechanism 11 is provided which firmly presses and clamps or releases the row 2 by means of a hydraulic mechanism. The lower part of this synchronized clamp mechanism 11 is provided with a mechanism for driving it along the casting rod row 2.
Alternatively, a drive mechanism 12 is provided that allows free movement. The drive mechanism 12 is the drive mechanism 1
The same as 0 applies.

In addition, support rollers 13 are appropriately arranged at positions that do not impede the movement of the movable frame 5 and the synchronized clamp mechanism 11.

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

The cast rod row 2 coming out of the mold 1a is supported and guided by guide rollers 3, then pinched in parallel by pinch rollers 4, and is rotated at a predetermined speed (casting speed) by the rotational driving force of the pinch rollers 4. be transported.

The cast rod row 2 to be transferred is moved by the pinch roller 4
It is firmly pressed and gripped by a synchronized clamp mechanism 11 that is waiting in the vicinity of. At this time, the drive mechanism 12 is free with respect to the synchronized clamp mechanism 11,
The synchronized clamp mechanism 11 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 10, and stops when it reaches a predetermined position, and the drive device 10 becomes free with respect to the movable gantry 5 and enters a standby state.

At the same time as the tip of the cast rod row 2 being transferred comes into contact with the length probe 9 attached to the movable pedestal 5, the movable pedestal clamp mechanism 8 grips the cast rod row 2, and the cutting machines 7b, 7b' It works, but the moving platform 5
moves with the casting rod row 2, so each casting rod 2
a... is cut at right angles to the transport direction.
At this time, the cutting machines 7b and 7b' are connected to two cutting machines installed in parallel.
It moves on the rails 6 and 6' of the strips and cuts the cast rod row 2 in half from the outside to the inside in the width direction of the cast rod row 2, so the tip of the cut cast rod row 2 is However, in the next cutting, the lengths from the cutting machines 7b, 7b' to the tips of the casting rods 2a, . . . are the same. When the cutting is completed, the cutting machines 7b and 7b' return to their original positions, and at the same time, the movable frame clamping mechanism 8 is released, and the movable frame 5 is moved in the direction of the pinch roller 4 by the drive mechanism 10, and the movable frame 5 is moved to a predetermined position. At the same time as it stops at the position, the drive mechanism 10 becomes free and enters a standby state.

On the other hand, the synchronized clamp mechanism 11 releases the cast rod row 2 an instant after the movable frame clamp mechanism 8 grips the cast rod row 2, and is moved by the drive mechanism 12 in the direction of the pinch rollers 4 to a predetermined position. The motor stops at this point, and the drive mechanism becomes free and enters a standby state. The synchronized clamp mechanism 11 in the standby state grips the cast rod row 2 a moment before the movable frame clamp mechanism 8 releases the cast rod row after the cutting of the cast rod row by the cutting machines 7b and 7b' is completed, and holds the cast rod row together with the cast rod row. Moving.

The operation of one cycle of the main parts of the above-mentioned cutting device is illustrated using bar lines as shown in FIG. 3. As is clear from the figure, since the cast rod rows 2 are always held by either the clamp mechanism 8 or 11, they do not shift from each other.

Also, by adjusting the length of the length measuring device 9, the casting rods 2a... can be cut to a desired length, but since the casting rod row 2 is constantly moving, the length required for cutting is limited. It is longer than the distance traveled in time. Furthermore, the shorter the length of the cast bar to be cut, the shorter the waiting time.

The above-mentioned operation is caused by the contact between the length examiner 9 and the tip of the cast rod row, the signal accompanying the completion of cutting by the cutters 7b and 7b',
Alternatively, it may be carried out by a well-known method using a secondary signal generated by the operation of the clamp mechanisms 8, 11, a limit switch, etc. Further, the length analyzer 9, drive devices 10, 12, etc. are not limited to those described above, and any device having the functions described above may be used.

In the above embodiment, a pinch roller was used as a transfer driving means for the casting rod row 2, but in another embodiment of the present invention, the pinch roller is not provided, and each drive mechanism 1 of the movable frame 5 and the synchronized clamp mechanism 11 is used.
0 and 12. That is, while the movable frame clamp mechanism 8 and the synchronized clamp mechanism 11 are respectively gripping the casting rod row 2, the corresponding drive mechanism 10 or 12 is operated to tune the casting speed in the direction of transport of the casting rod row 2. and move it. Both of the above-mentioned clamp mechanisms grip and move the cast rod row 2 alternately and without interruption, so the cast rod row 2
Acts as a stable transport drive means.

〔effect〕

As described above, in the continuously cast bar cutting device according to the present invention, each cast bar row is always firmly gripped by one of the clamp mechanisms, so that each cast bar does not shift in the length direction. Since the cutting machine cuts the rod to the specified size with high precision, there is no need for secondary finishing cutting, and the cast rod of the specified length can be obtained extremely efficiently. Since the rods are used opposite to each other in the width direction of the row of cast rods, the time required for cutting is halved, and this is an excellent method that allows cutting to desired lengths over a wide range. Furthermore, the ability to omit pinch rollers and the like as means for driving the cast rod array is extremely advantageous for industrial implementation.

[Brief explanation of drawings]

1 to 3 show an embodiment of a continuously cast rod cutting device according to the present invention, FIG. 1 is a side view, FIG. 2 is a plan view, and FIG. 3 is a main view of the device. It is a figure which shows the operation|movement of 1 cycle of a part. 1... Continuous casting device, 1a... Mold, 2... Casting rod row, 2a... Casting rod, 3... Guide roller,
4... Pinch roller, 5... Moving frame, 6, 6'
...Rail, 7a, 7a'...Motor, 7b, 7b'...
...Cutting machine, 8...Moveable frame clamp mechanism, 9...
Length analyzer, 10... Drive mechanism (hydraulic cylinder), 1
1... Synchronized clamp mechanism, 12... Drive device (hydraulic cylinder), 13... 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. , attached to the movable pedestal, grips the cast rod row and moves the movable pedestal in synchronization with the cast rod row during operation of the cutting machine;
A continuously cast rod cutting device comprising a movable pedestal clamp mechanism that is released after the operation of the cutting machine is completed to allow the movable pedestal to move in a direction opposite to the transport direction of the cast rod row, the cutting machine comprising: It is composed of two cutting machines that cut and move on the movable pedestal from both outer sides in the width direction of the casting rod row inward, and between the continuous casting device and the movable pedestal, the movable pedestal is 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 cutting device for continuously cast bars, characterized in that it is equipped with a synchronized clamp mechanism that moves in a direction opposite to the direction in which the rows are transported.