JPS62187554A - Sampling apparatus for casting slab - Google Patents

Abstract

PURPOSE:To enable rapid sampling from casting slab by positioning a cutting apparatus as horizontal shifting at right-angled direction cutting section of carrying casting slab and cutting the base by a coaxial curved lever type cutter after notching as remaining a center cylinder by a reversed angle type center boring cutter. CONSTITUTION:The cutting apparatus 4 is shifted horizontally on rail 12 and positioned by a vertically moving device 6 at the right-angled cutting section under way of carrying high temp. casting slab 1. A tip 59 of the reversed angle type counter boring cutter 34 is used to notching-cut 71 as remaining the center cylinder 70 by turning of a cutter turning device 35 and by advancing of a horizontal shifting device 31. Next, the base of the cylinder 70 is cut 72 by working of a cutting driving device 32 under using a tip 51 of the coaxial curved lever type cutter 34. Therefore, sampling in the casting slab 1 is executed rapidly at any optional position in the end-face of the casting slab 1.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a sampling device for slabs, which hotly collects block samples for component determination from any position on the cut end surface of continuously cast high-temperature slabs. This invention relates to a device for rapid collection.

[Conventional technology]

Continuous casting machines require technology that can quickly determine the composition of slabs in order to save energy and shorten lead times.

That is, conventionally, the component analysis of slabs before and after the joint of continuous cast materials of different steel types, in which it is necessary to particularly check the components, has been carried out as follows. In other words, after cutting the cast slab to a certain length, it is transported to a dirt floor using a crane and made into a cold slab.The sample area is manually cut using a drill, and the chips are transported to the analysis room where the components are analyzed using a wet method. I was judging. In this method, it takes 8 hours to 1 day to make a judgment after cutting the continuously cast slab, and the slab cannot be rolled during that time.

Therefore, there were problems such as hot charging not being possible and lead time becoming longer.

[Problems solved by the invention]

The present inventors have previously developed a method for taking block samples while the slab is hot online in a continuous casting machine (patent application No. 6 O) in order to enable hot charging and shorten lead time. -153895) was proposed.

The present invention is an invention related to the above method, and is an apparatus for collecting samples online from a cut end surface or a side end surface of a slab. The collected block sample is immediately transported to the analysis room via a pneumatic tube. A pneumatic tube is a device that connects the sample collection location and the analysis room with piping and transports the sample using compressed air.

In the analysis laboratory, components can be determined early using a spectroscopic analyzer called countback analysis. The time required is 1
The object of the present invention is to hot charge slabs and shorten the lead time.

[Means for solving problems]

The technical means of the present invention to achieve the above object is an apparatus for directly taking a block sample from the end face of a continuously cast slab, which includes: (1) leaving the cylindrical center part and cutting the periphery into a dish shape; An inverted angle-type counterboring knife for cutting and a curved lever-type knife for root-cutting the base of the remaining cylinder are set in the same holder, and the center axis of the holder is arranged horizontally in a direction parallel to the running direction of the roller table. (2) a device for horizontally moving the cutter device in a direction coinciding with the running direction of the roller table and a direction perpendicular thereto, and a device for moving the holder up and down in the vertical direction; ) This is a slab sampling device characterized in that these devices are arranged on the same stand.

[Effect]

With the above-described configuration, the apparatus of the present invention has the following features when the slab is in a red-hot state online in the continuous casting machine:
20 to 30mmφ
Samples can be easily collected to a depth of about 20 mm, and the necessary information can be obtained immediately through rapid analysis.

〔Example〕

Next, embodiments of the sampling device of the present invention will be described in detail with reference to the drawings.

The sampling device of the present invention is shown in FIG.
b) Its front view (view from arrow A), as shown in arrow B in FIG. It consists of a vertical movement device m6 that moves and a horizontal movement device 7 that moves horizontally in the running direction of the roller table 2.

As shown in FIGS. 5 and 6, the cutter device 4 includes a cutter case 3.
3. Consists of a cutter 34, a cutter rotation device 35, a sample root cutting drive device 32, a tip 50, 51, a cutter hoshider 53, etc. The operation of the blade device 4 will be explained together with the cutting process. Sampling is performed as shown in Figure 7 (a) and (b) (
It consists of a) spot boring and (b) root cutting.

First, to explain the counterboring process, the tip 50 of the counterboring cutter is moved to the cutter holder 5 by the tip holder 52.
It is fixed at 3. The blade holder 53 is a gear 59
．． It is connected to the rotation device 35 via 60. Therefore, by starting the turning device 35, the cutter holder 53 is rotated, and by driving the horizontal moving device 31 shown in FIG.
A part of the cut end face is shaped into a dish shape 7 with the center part 70 remaining.
Counterbore 1.

Next, when the predetermined cutting or counterboring process is completed, the root cutting drive device 32 is activated next while the blade holder 53 remains in the state (position) in which the counterboring is completed. When the root cutting drive device 32 is driven, the root cutting tip 51 becomes in the state shown in FIG.
The roots of the base portion 72 are cut as shown in Figure (b). The root cutting driving force is transmitted from the root cutting drive device 32 to the connecting rod 57,
It is transmitted to the link 55, the root cutting tip holder 54, and the root cutting tip 51. The link 55 of the root cutting portion moves the chip 51 with the root cutting link pin 56 attached to the root cutting pin holder 62 supported by the blade holder 53 as a rotation center. As described above, the turning force for cutting is obtained from the turning device 35, and the cutting force for root cutting is obtained from the root cutting drive device 32.

Next, a device for moving the cutter device will be explained.

The main body 5, which moves horizontally in a direction perpendicular to the running direction of the roller table 2, is mounted on a rail mount 12 and a slide surface 14 provided on the foundation 3, and the entire body 5 is moved by the horizontal movement device 11 to the installation of the roller table 2. Move in and out of the line.

A vertical movement device 6 for vertically moving the cutter device 4 is shown in FIGS. 3 and 4. 3 is a view in the direction of arrow C in FIG. 1(b), and FIG. 4 is a view in the direction of arrow D in FIG. The vertical movement drive device 21 moves the moving block 22 in two parts on the sliding surface 17 attached to the main body device 5 by rotating the threaded rod 26.

The threaded rod 26 is supported by a bearing 25. Therefore, the cutter device 4 is moved up and down.

Similarly, as shown in FIGS. 1 and 2, the cutter device 4 is moved in the horizontal direction along the slide surface 23 attached to the moving block 22 by the drive of the horizontal movement device 31.

With the above configuration, sampling is performed as follows.

After the slab 1 cast by the continuous caster is cut into a predetermined length, it is transported to the position of this sampling device and stopped. Stopping is performed using the normal roller table 2 stopping accuracy (±30mm)
). The sampling device waiting outside the line of the roller table 2 is moved into the table by the horizontal movement device 11, and the center of the cutter is moved in the L downward movement drive device 21 in the direction of 2 parts in order to sample from the end face of the slab 1. Adjust the position to 1/4t and 1/2t with respect to the thickness t of the slab,
Next, the tip of the cutting tool is moved to the end face of the slab by the horizontal movement device 31 to perform cutting. When cutting is completed, the sampling device performs the opposite movement and returns to the standby position again. The collected samples are held in the cutter holder 53 and the root cutting holder 54, and are carried out by another device at the standby position to complete the sampling.

〔Effect of the invention〕

The present invention makes it possible to hot charge slabs of unsteady parts that require continuous component checks of different steel types, and also to shorten lead time.

[Brief explanation of drawings]

FIG. 1(a) is a plan view of an embodiment of the sampling device of the present invention, FIG. 1(b) is a side view thereof, and FIG. 2 is an elevational view thereof.
Fig. 3 is an elevational view of the vertical movement device for the cutter, Fig. 4 is a view taken from arrow D in Fig. 3, Fig. 5 is an elevational view of the cutter for counterboring, and Fig. 6 is an elevational view of the cutter for root cutting. The elevational view and FIG. 7 are processing explanatory views. l... Slab 2... Roller table 3...
・Fundamentals 4...Knife device 5...Main body
6...Vertical movement device 7...Horizontal movement device 11.
...Horizontal motion device 12...Rail frame 14...Slide surface 17...Slide surface 21...Vertical motion drive device 22...Movement block 23...Slide surface 25...Bearing 26. ...Threaded rod 31...Horizontal motion device 32...Root cutting drive device 33...Blade case 34...Blade 35...Swivel device 5o, 51...Chip 52...Chip holder 53 ...Blade holder 54... Root cutting holder 55... Link 56... Pin 57... Connecting rod 59.6o... Gear 62... Root cutting bin holder

Claims (1)

[Claims] 1. An apparatus for directly taking block samples from the end face of continuously cast slabs, comprising: an inverted angled counterbore knife that leaves the cylindrical center part and cuts the periphery into a dish shape; A blade device in which curved lever-type blades for root-cutting the base are set in the same holder, and the center axis of the holder is arranged horizontally in a direction parallel to the running direction of the roller table; 1. A sampling device for a slab, comprising a moving device for moving a slab to any position in a horizontal direction, a direction perpendicular to this, and a vertical direction.