JPH0422907Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Industrial Application Field] The present invention relates to an apparatus for processing a sample for determining the internal quality by performing sulfur prints on the cast cross section of continuously cast slabs. [Prior art] Continuously cast, cut by a slab shear,
Slabs (short slabs) that fell into sample pit 48
As shown in FIG. 9, the equipment for processing includes a single-torch gas cutter 50 for cutting out the cast slab sent through the temporary storage area 49 by a riffmag crane 57, a cooling water tank 51, and a grindstone for rough grinding.
A grinding machine 52 with a belt grinder for finishing grinding, and a sample clamp stand 5 for fixing the slab
Conventionally, a type consisting of four pieces of equipment has been used, each piece of equipment being independent and having little mechanical relationship with each other, and transporting slabs between each piece of equipment using a riffmag crane 57 that requires a lot of manual labor. [Problems to be solved by the invention] In the above-mentioned conventional sample processing equipment, the small slabs are transported between each device using a manually operated crane, and the setting of the small slabs in the gas cutting machine and grinding machine is done manually. In addition, since a grindstone and a belt grinder are used, the processing time is long, and multiple lines are required due to the capacity, resulting in an increase in the number of working personnel and an increase in processing time. The present invention provides an effective sample processing device for sulfur printing that solves the above problems. [Means for Solving the Problem] The present invention is an apparatus for processing a sample of a cast cross section for sulfur printing from a short slab obtained by cutting the cast cross section of a continuously cast slab with a shear. A wheel stand that is placed and supported so that the cut surface, which is the casting cross section, is vertical and the width matches the table width direction, and a pressing device that clamps and fixes the cut side of the short slab on the wheel stand with a stopper and a pressing member. a gas cutting device having a receiving table equipped with the same, a gate-shaped pedestal provided to be movable in the longitudinal direction of the table across the width direction of the receiving table, supported so as to be movable in the upper direction in the width direction of the table, and having a pair of torches; A cooling water tank provided following the receiving table to cool the sample cut by the gas cutting device; and a cooling water tank provided following the cooling water tank to receive the sample piece and transfer it onto a roller table with the gas cut surface horizontal. A reversing rotary table having a tilting arm and capable of horizontally rotating the roller table, and a reversing rotary table provided so as to be movable between a relay roller table provided following the reversing rotary table and a sample sulfur printing table. , a shuttle table with a roller table in the upper longitudinal direction and a sample holding mechanism on both sides thereof, a rough grinding milling machine placed at a predetermined position on the travel path of the shuttle table, and for grinding the gas-cut surface of the sample on the roller table, and finishing. A continuous machine characterized by comprising a grinding device having a Surf Ace mill for cutting, a gate-shaped manipulator that is movable over the receiving table, a cooling water tank, and a turning table and that grips and conveys the sample from both sides in the width direction. This is a sample processing device for sulfur printing of cast slabs. [Operation] In order to solve the problems of the conventional technology, the present invention
This is a device that realizes automation of sample processing for sulfur printing of cast slabs, and the operation of the present invention will be explained below. The cast slab (short slab) whose cast cross section is cut by the slab shear has a shape with burrs 24 generated during cutting as shown in FIG. 2, and the length of the slab 21 is shortened in order to increase the yield. From this state, a sample 16 for sulfur printing without warp 24 is cut out, but since the length 21 of the slab is short, it tends to warp in the direction of the sample thickness 22. If this sample warpage occurs, not only will the processing time increase during the subsequent grinding and surface finishing steps, but if the degree of warping increases, gas cutting itself will become impossible. Therefore, in the present invention, as shown in FIGS. 1 to 8, (1) a gas cutting device 5 having a double torch 6 is used to equalize heat input from both sides of the surface to be cut during gas cutting to prevent sample warping; . (2) Remaining material 17 during gas cutting
is fixed by a fixed stopper 3 and a movable pressing plate 4 to prevent the cutting position from shifting. (3) During water cooling in the cooling water tank 8, lower the sample 16 with the manipulator 7 keeping the gas cut surface vertical;
It is immersed in water and cooled to prevent warping during cooling. According to (1) to (3) above, the sample warpage when cutting out the sample by the gas cutting device 5 and before the grinding device 10 is suppressed to within 3 mm, and automatic operation is not damaged due to the warpage. Sample 1 cut by gas cutting device 5
The cutting slag 25 adheres to the sample 6, which impedes sample support during gas cutting and transportation to the cooling water tank 8. Therefore, in the present invention, the wheel stand 2 is used to support the sample during gas cutting, making automatic gas cutting possible even when slag is attached. In addition, the transport from the ring platform 2 to the cooling water tank 8 and the support during cooling in the cooling water tank 8 are carried out using a hanging support type using a manipulator 7, as shown in FIG. In order for the grinding device 10 to grind the sample 16 with the cast cross-section, that is, the gas-cut surface facing upward, and to move relatively in the longitudinal direction of the sample 16, an inversion rotating table 9 is provided.
is tilted 90 degrees and the width direction is aligned with the conveyance direction. The interruption roller table 100 functions as a buffer before sending the sample received from the roller table 35 of the reversing rotary table 9 onto the roller table 44 on the shuttle table 45. Shuttle table 45 is roller table 4
The sample received on the roller table 4 is conveyed to the grinding position by a roller table 44, stopped when the grinding start part of the sample reaches the grinding position, and then the sample is fixedly supported from at least both sides by holding mechanisms 41 and 42. Simultaneously with the start of grinding by the grinding device 10, the entire shuttle table 45 is moved forward to grind the entire cast cross section of the sample in its longitudinal direction, or partially as necessary. This is repeated by moving forward, returning and retreating in the order of rough grinding and finish grinding. The grinding device 10 is provided so as to be able to move horizontally on the pedestal G and to be able to move up and down, and at the grinding position, a milling machine 11 for rough grinding and a surf ace mill 12 for finishing cutting are moved horizontally and alternately positioned. [Embodiment] FIG. 1 is a plan view showing the overall layout of an embodiment of the present invention. In FIGS. 1 and 4, a receiving table 1 is a device for fixing a shear-cut slab 15 during gas cutting. It consists of a fixed stopper 3 that fixes the slab 15 from the side during cutting, a movable pressing plate 4, and a pressing cylinder 125 that operates this. In FIGS. 1 and 5, the gas cutting device 5 has a double torch 6, and is a device that cuts the shear cut slab 15 into two strips into a sample 16 and a residual material 17. When discharging the remaining material 17, the remaining material 17 is moved on the rail 33 by a cart. In FIGS. 1 and 6, the gate-shaped manipulator 7 that clamps the sample 16 includes a pair of clampers 27 that clamp both end surfaces of the sample 16 in the longitudinal direction (same on both sides in the width direction of the slab), and a hook to prevent falling. 28, Clamp cylinder 2 for clamping
9. Equipment consisting of a lifting cylinder 30 for lifting and lowering the sample, a traveling motor 31 for movement, and wheels 32, and that moves the sample 16 after gas cutting, cools it in the cooling water tank 8, and discharges it to the reversing turning table 9. It is. In FIGS. 1 and 7, the reversing turning table 9
consists of a tilting arm H having a fork-shaped sample support 34, a cylinder 37 for tilting it, a roller table 35, and a motor 36 for rotating it.
With the sample 16 tilted approximately 45 degrees by the manipulator, the sample 16 is transferred by the manipulator 39 (16') and received by gravity 40 (16''), and the cut surface is placed on the roller table 35 with the upper and lower surfaces by the operation of the cylinder 37 again. Then, the rotation axis center 3
It is rotated by 90 degrees around 8 and transported by the rotational drive motor 36. In FIGS. 1 and 8, a grinding device 10 has a rough grinding milling machine 11 and a surf ace mill 12 mounted on a gate-shaped pedestal G so as to be movable up and down. The shuttle table 45 includes a holding mechanism 42 for fixing the sample, a lower back up 43, a base frame 46, a forward and backward drive device 47 for the shuttle table 45, and a roller table 4 for feeding the sample 16.
Consists of 4. The sample 16 is transferred by a roller table 44, and its tip is connected to the grinding device 10.
After reaching the grinding position, it is fixed on the roller table 44 by the presser mechanism 41 and the lower back up 43. The shuttle table 45 is moved forward on the base frame 46 by a drive device 47. Along with this movement, the milling machine 11 cuts the sample 1.
Rough grinding is started from the tip of No. 6, that is, from one end in the long axis direction of one of the gas-cut cast sections. After moving forward by a predetermined amount and roughly grinding the required area, it retreats to the return position, and then finishing grinding is performed by the Surf Ace Mill 12 by moving forward. After finishing the grinding in this way, the sample 16 is transferred to the next payout roller table 13.
Dispense it upwards. Next, a specific example of processing a sample using the present invention will be described. The processing conditions are as follows: The size of the slab shear cut slab is 250mm sample thickness 22, and slab width 2.
A slab with length 21 of 1600 mm and length 21 of 160 mm was cut with a double torch to a length of 80 mm, and the finished surface accuracy using a grinder was determined by R _nax (maximum surface roughness) <
An example manufactured with a thickness of 5 μm is shown. Steel type is carbon content
It is 0.05% low carbon ordinary steel. The slab cut by the slab shear is placed on the slab support wheel stand 2 of the receiving table 1 using, for example, a rift mag crane. After that, when the operator turns on the start switch, the movable pressing plate 4 operates, and the fixed stopper 3
The cast slab 15 is fixed between the two, and the cast slab is set in a state where it can be gas cut. Subsequently, the gas cutting device 5 moves on the shaft to the slab position, and the double torch 6 is ignited to divide the slab into three parts as shown in FIG. Because the cutting was performed using the double torch 6 and pressing, the sample warpage was as small as 1.0 mm. The time from setting the slab to completing cutting was 9 minutes and 30 seconds. 1D is attached to a height of about 10 to 15 mm, but the ring stand 2,
Conveyance by the manipulator 7 allows automatic conveyance without any problems. Next, the manipulator 7 is moved over the slab, and the middle sample 16, which has been divided into three parts, is lifted up by the clamper 27 with the cut surface kept vertical.
After moving onto the cooling water tank 8, the cut surface is cooled in the water tank while keeping the cut surface vertical. Vertical cooling resulted in sample warpage of 1.5 mm, which was an increase of 0.5 mm from gas cutting. After cooling, the manipulator moves onto the inverting rotary table 9 to lower the sample and drop it onto the sample support 34 at about 100 mm above the table. At this time, the sample support 34 receives the sample while being tilted at 45 degrees by the tilting mechanism.
After receiving the sample, rotate it 90°. It takes 12 minutes from moving the manipulator to rotating the rotation table. Next, the sample is moved onto the roller table 44 of the shuttle table 45 via the suspension roller table 100, and the side clamp and lower surface backup 43 are operated at the grinding position, and the sample is fixed from three sides, both sides and the bottom surface. Supported. After setting, grinding starts. For the grinding, rough grinding is performed using a milling machine 11 with a cutting amount of 2.5 mm x 2 passes, and finishing grinding is performed using a surf ace mill 12 with a cutting amount of 0.2 mm x 3 passes.
After grinding, the sample is delivered to the roller table 13.
sent to. Since the sample warped after cooling was 1.5 mm, it was completely shaved by roughing 2.5 mm x 2 passes and finishing 0.2 mm x 3 passes. The time from sample acceptance to sample delivery was 14 minutes and 30 seconds. The operation and transportation of each equipment can be operated automatically after receiving the slab. Therefore, the number of operating personnel can be two in total: one person for gas cutting, one person for crane operation, and one person for grinding machine operation. At the same time, as Comparative Example 1, the method described in the prior art was carried out using the equipment configuration shown in FIG. Furthermore, as Comparative Example 2, in the present invention, gas cutting was carried out with a single torch, and as Comparative Example 3, in the present invention, in the case of no pressing during gas cutting,
As Comparative Example 4, Table 1 shows the results obtained when water cooling was performed with the cut surface horizontal in the present invention. In Comparative Example 1, the grinding process takes 44 minutes, resulting in a cycle time of 44 minutes and a processing time of 132 minutes.
Series processing is required. Two-line processing requires five workers, which is a significant increase compared to the present invention. Further, in Comparative Examples 2 and 4, the grinding process requires 29 minutes and 23.5 minutes, respectively, so two series of processing are required, and the number of working personnel is twice that of the present invention. In Comparative Example 3, the sample was so bent that it could not be cut. As described above, according to the present invention, samples with accurate and good shapes can be obtained, and the number of working personnel and processing time can be greatly improved.

【table】

[Effect of idea]

The present invention involves cutting a thin sample without warping from a high-temperature short slab cut by a slab shear, using gas cutting, and after cooling, grinding the cast cross section for sulfa printing and determining the internal quality of the slab by sulfa printing. This enables continuous processing, automation of transportation, and automation of processing. As a result, the number of working personnel and processing time are significantly improved, resulting in a reduction in sample processing costs, as well as significant industrial effects such as improved working environment and improved surface precision.

[Brief explanation of the drawing]

Figure 1 is a plan view showing the overall layout of the embodiment of the present invention, Figure 2 is a diagram showing the relationship between gas cutting of a sample after shear cutting, and Figure 3 is a diagram showing the cut slab for sulfur printing and the cast piece. Figure 4 is a diagram showing the relationship with the single support wheel stand, Figure 4 is a diagram showing how the shear cut sample is fixed on the receiving table, Figure 5 is
The figure shows the relationship in which a fixed shear cut sample is gas cut, Figure 6 shows the relationship in which a sample for sulfur print is clamped by a manipulator, and Figure 7 shows the sample for sulfur print. FIG. 8 is a diagram showing the relationship in which a sample for sulfur print is cut by a milling machine, and FIG. 9 is a diagram showing the layout of a conventional method. DESCRIPTION OF SYMBOLS 1... Receiving table, 2... Wheel stand, 3... Fixed stopper, 4... Movable pressing plate, 5... Gas cutting device, 6... Double torch, 7... Manipulator, 8... Cooling water tank, 9 ...Reversing rotating table,
10...Grinding device, 11...Milling machine, 12...
...Surf Eighth Mill, 13...Dispensing roller table, 14...Sample bucket, 15...
Shear cut slab, 16...sample, 17...
Remaining material, 18...Double torch space, 19...
Cutting allowance, 20... Slab thickness after gas cutting, 21... Slab length, 22... Sample thickness, 23... Slab width,
24... Return, 25... Cutting groove, 26... Gas cutting direction, 27... Clamper, 28... Hook,
29... Clamp cylinder, 30... Lifting cylinder, 31... Traveling motor, 32... Wheel, 33...
...Rail, 34...Sample support, 35...
Roller table, 36...Rotation drive motor,
37...Tilt cylinder, 38...Swivel axis center,
39... Manipulator transport, 40... Natural fall,
41, 42... Presser mechanism, 43... Bottom back up, 44... Roller table, 45... Shuttle table, 46... Base frame, 47...
... Forward and backward drive device, 48 ... Sample pit, 4
9...Temporary storage area, 50...Single torch type gas cutting machine, 51...Cooling water tank, 52...Grinding machine, 53
... Traverse rail, 54 ... Sample clamp table, 55 ... Inspection table, 56 ... Sample bucket, 57 ... Rifmag crane, 100 ... Roller table for interruption, 125 ... Pressing cylinder, J ... Slab Shear cut surface, L...gas cut section, La...gas cut surface.

Claims (1)

[Scope of Claim for Utility Model Registration] An apparatus for processing a sample of a cast cross section for sulfur printing from a short slab obtained by cutting the cast cross section of a continuously cast slab with a shear, the cutting being a casting cross section of the short slab. A receiving table equipped with a wheel stand that is placed and supported with a vertical surface and a width that matches the table width direction, and a pressing device that clamps and fixes the cut side of a short slab on the wheel stand with a stopper and a pressing member; A gas cutting device having a pair of torches supported so as to be movable in the widthwise upper direction of the table on a gate-shaped pedestal mounted so as to be movable in the longitudinal direction of the table across the width direction of the table; a cooling water tank provided to cool the sample cut by the gas cutting device, and a tilting arm provided following the cooling water tank to receive the sample piece and transfer the sample piece onto a roller table with the gas cut surface leveled. an inversion turning table in which the roller table can be horizontally turned; a relay roller table provided following the inversion turning table and a table for sample sulfur printing; A shuttle table with a roller table and a sample holding mechanism on both sides thereof, a milling machine for rough grinding and a surf ace mill for finish cutting, which are placed at a predetermined position on the travel path of the shuttle table and grind the gas-cut surface of the sample on the roller table. A grinding device for continuous casting cast slabs, characterized in that it is comprised of a gate-shaped manipulator that is movable over the receiving table, the cooling water tank, and the rotating table, and that grips and conveys the sample from both sides in the width direction. Sample processing equipment for fur printing.