JPS62238021A - Flaw removing equipment for steel billet - Google Patents

Abstract

PURPOSE:To improve a billet processing capacity by providing the plural flaw removing devices performing a flaw removal by registering a flaw detection position, etc., and by arranging a straddle device between the flaw detection device and flaw removing device. CONSTITUTION:Flaw detection devices 5, 7, 8 are provided in succession to a billet charging base 1 and plural flaw removing devices 13, 14, 15 are arranged in parallel as well. A straddle device 12 is further provided in the medium of the flaw detection devices 5, 7, 8 and flaw removing devices 13, 14, 15. A billet 2 is first descaled by a shot blasting device 4 to perform the number registration of the billet 2. A defective item 2A is then fed to an extrusion base 9 by performing the flaw detection of the inner and outer of the billet 2 by the flaw detection devices 5, 7, 8. A good item 2B and flaw removal necessary item 2C are subjected to a flaw removal via a transfer device 11 and straddle device. In this way, the automatic processing in flaw detection and removal is enabled and the processing capacity of the billet 2 is improved.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to equipment for removing flaws from steel billets.

(Prior technology) Steel slabs obtained by continuous casting have defects on the inside and outside of the steel slab due to slag mixed in during casting, etc. Conventionally, the steel slabs were passed through a magnetic flaw detector to mark the discovered flaws. This is used as a mark 1 and the scratches are removed with a cutter.

(Problems to be Solved by the Invention) However, since the conventional method relies on manual labor, it has the drawback of being inferior in its ability to remove defects from steel slabs.

In view of this, the present invention aims to provide a steel billet eaves removal equipment that can improve processing capacity by automating flaw detection and flaw removal of steel materials.

(Double and Step for Solving Problems) The present invention is configured to sequentially transport steel billets from a billet loading table to a flaw detection device, and has registered layers + and H added to the billet. In this state, the flaw detection device is configured to register the position and size of the flaw detected by the flaw detection device, and several flaw removal devices that remove 1 ton of flaws based on the registered flaw detection position and human quality are installed in the flaw detection device. At the same time, between this flaw detection device and the flaw removal device, a device for sorting and conveying the steel pieces for deep flaw detection described above in a direction perpendicular to the direction of conveyance thereof is installed. , the steel billet from the flaw detection device is configured to be sorted and conveyed to an empty defect removal device, and the steel billet from the defect removal device is conveyed to a collection table via a transfer device. Features a pick-up facility.

(Function) According to the present invention, the steel billets flow from the billet charging table to the flaw detection device, then to the sorting device, then to the eaves removal device, to the transfer device, and then to the collection table. By registering the registration number attached to the steel billet and the location and size of the flaw detected by the flaw detection device in the computer, the flaw removing device is activated based on this data and the steel billet brought into the machine is operated. Since flaws are removed automatically, batch automation of flaw detection and flaw removal can be performed.

(Example) Hereinafter, details of the present invention will be explained with reference to the drawings.

FIG. 1 shows an overall configuration diagram of the flaw removal equipment according to the present invention, in which a steel billet passes through the individual devices described below to remove flaws.

That is, a billet loading table (+) is equipped with a large number of billets (2) having a rectangular cross section manufactured by continuous casting equipment. This billet charging table (1) - the billet (2)
) are sequentially sent to the conveyance path side from the delivery conveyor device (1a), and sent out one by one to the conveyance path from the billet loading table (1) by a transfer device.

The conveyance path is constituted by a V roller conveyor (3), and a suitable number of V rollers (3a)... are rotated once to convey the steel billet (2), and the steel billet (2) is conveyed. (2)
The steel billet (2) is first carried into a shot blasting device (4), where rust is removed from the surface of the steel billet (2) and a registration number is assigned to the steel billet (2), and this registration number is registered in a computer.

Next, the steel piece (2) is sent to the first flaw detection device (5). At this time, the steel billet (2) is on the V roller conveyor (3) as shown in Figure 2, and the steel billet (2) (2a) and (2b) are facing toward 1-1. Therefore, the first deep flaw device (5) performs a flaw detection operation on these two sides.
If there is a flaw, the location, size, length, and depth of the flaw are known.
-Registered in the computer corresponding to the registered registration number.

The steel piece (2) exiting the first deep flaw detection device (5) is rotated 180 degrees up and down by the inverter (8), and then transferred to the second flaw detection device (7).
), the remaining two surfaces (2c) and (2d) are subjected to a flaw detection operation, and the position and size of the flaw are similarly registered.

Thereafter, the steel piece (2) is carried into an ultra-JF wave flaw detection device (8), and the inside of the steel piece is inspected to determine the presence or absence of flaws.

On the exit 11 side of the ultra-R1 wave deep flaw device (8), a flaw detection defect extraction table (9) and a first transfer device (10) are installed across the conveyance path for the steel billet coming out from the device. ing. Then, based on the flaw detection results described in 1- above, the computer determines that the defective steel pieces (by two people) have flaws and cannot be used even after flaw removal is carried out on the flaw detection defect extraction table (9). )
Steel pieces that have no defects at all (2B), and steel pieces that are judged to be able to withstand use after being processed to remove defects (2C)
) to be sent to the first transfer device (10). Needless to say, the steel pieces (by two people) transferred to the flaw detection defect extraction table (9) are recast and used.

In the first transfer device (10), the steel billet (2B) (2
C) is conveyed in parallel in a lateral direction perpendicular to the previous conveyance direction, and is received at the receiving and reversing n (IOa). Among these, the completely defect-free steel piece (2B) is conveyed intermittently by the reversing operation of the reversing device (10a), and reaches the end of the first transfer device (10), from where it is transferred to the 2 transfer device (11).

On the other hand, the flawed steel piece (2C) is received +L by the receiving W inverter (lOa), and after it is damaged, the next stage distribution is sent to the device (12). This sorting device (12) is a reversing device (13a)
(14a) (15a) Scratch removing device (+3) (+
The steel billet (2) is sent to the steel mill (1) (for flaw removal treatment, there are three flaw removal devices as shown in the figure (even if there are two, three or more flaw removal devices are required). 1-) is provided, and the distribution device (12) is the first transfer γ
The steel billet (2C) received from the device (1O) is driven to select an unoccupied eave-covering device and feed it into it according to instructions from the computer. For example, according to the figure, the first
A steel piece (2C) is being fed toward the flaw removing device (+3), the second flaw removing device (14) has just started eaves removal, and the third flaw removing device (15) is Eaves removal work is halfway underway. However, each piece of steel (2
Assuming that the number of sheets, size, etc. of C) are approximately the same, the third flaw removing device (
15), the sorting device (12) moves to transfer the next piece of steel toward the third flaw removing device (15). However, in reality, the number and size of each steel billet (2C) are different, so the work time for each eaves removal device is estimated and added to feed the next steel billet. Further, if any of the eaves removal devices (+'3) (+4) (+5) are vacant, it is desirable to select, for example, the second flaw removal device (14) and send the work to this with priority.

Each eaves removal device (13N + 40 + 5) uses the information stored in the computer based on the 0 record number of the incoming Ml 2C) to apply eaves removal to the defective part.
1- is done. This processing is performed by the reversing device (13a) (4a
) (15a) is applied to the flawed face plate of the four sides of the steel piece (2C). Thereafter, the steel billet (2C) was sent to the second transfer device (11), which moves in the same direction as the first transfer device (10), and was sent on a separate line. Transport together with the steel piece (2B) to 1 [■ Inspection m5 (1B).

In the 11T inspection department (+6), Worker U visually inspected each steel piece (2B) (2G) and determined that there were some defects that remained despite the above-mentioned eaves removal process, and others that were found to be free of defects. Select items that actually have flaws despite being damaged. In this case, the steel pieces (2B) and (2C) are sent by a V roller conveyor as in Fig. 2, and they are placed on both sides of the conveyor.
One or two people are working so that all four sides of the steel slab can be seen from 1 to 1. In other words, this prevents the bottom surface of the steel billet that is in contact with the conveyor from becoming visible as when conveying it on a belt conveyor. Among the steel sheets H that passed the +1 inspection ffi < (+6), the billet that was determined to be defective was Accumulation stand (17)
It passes in front of the ILT detection table (+8) and is transferred there. On the other hand, the steel pieces (2D) determined to be non-defective are transferred to the stacking table (17) and sorted there. 1st
In the figure, (19) and (20) are in extraction stand (18),
Defective products and non-defective products are stopped in front of the stacking table (17) [
・Shows one part of the stock and buckwheat for making, and also (21)
(22) shows a transfer claw of a transfer device for placing these on each platform l2.

The defective products transferred to the re-inspection sampling table (18) are again sent to the billet loading table (1) and subjected to the 11-■ check. In addition, the good products (2D) stacked on the stacking table (+7) l- are lifted in appropriate numbers and sent to a predetermined location using, for example, a lifting magnet.

By the way, one piece of steel is a non-defective steel piece (2 pieces) that has passed through the inspection section (16).
In order to transfer D) from the V-roller conveyor to the stacking table (+7), it is important to transfer the good steel piece (2D) with minimal impact (to avoid creating unnecessary flaws by transferring it). It is.

In addition, as mentioned above, in order to bundle and hang N number of good steel pieces (2D) with a lifting magnet, use the stacking stand (+7).
Good quality steel pieces (2D) need to be arranged in an appropriate number of 1. An example of a transfer device for this purpose is shown in FIGS.

As shown in Fig. 3, the stacking table (17) uses its -1- side as the stacking surface, and directs the good steel pieces transferred from the V roller conveyor (51) from the l- side to the do side in the figure. A plurality of stacking conveyors (23) are provided, and these stacking conveyors (23) are driven by a motor (24). Moreover, a long sleeve (25) is supported by a support frame (26) and constructed below the accumulation conveyor (24). On the other hand, the accumulation table (1
7) collection + frame supporting the s'f conveyor (23) (
27), an appropriate number of elevating frames (28) are installed. Each Shi1 town frame (28) beam is arranged with the length direction between the long sleeve (25) and the V roller conveyor (51), and correspondingly, as shown in Figs. 4 and 5. A lever (29) protrudes from the long sleeve (25). Is this lever (2S)? +'A pivot (
30). In addition, if a lever (31) different from the lever mentioned above is installed protruding from the long sleeve (25).
Then, the rod (32) connected to this lever (31) is connected (
The end part is pivoted, and the tip of the mouth and door are fitted with a bell crank (
33) and link (34),
1 is connected to a bracket (35) at the front end. The bell crank (33) has a fixed frame (36) as shown in Figure 5.
It is mounted on the shaft. Further, the long shaft (25) is rotated by a rotational driving cylinder (37). Therefore, when the driving cylinder (37) moves +]M, the rotational force of the long sleeve (25) holds the base end of the Y11 descending frame (28) via the lever (29), and at the same time Push out the installation rod (32), rotate the bell crank (33), and move it through the link (34)! The front end of the ri' lowering frame (28) is pushed and lifted, and as a result, the lowering frame (28) maintains almost the 5th position and the l-! It will be ri'. Lowering is performed by the reverse action.

As is clear from the plan view in Figure 4, the elevating frame (28) has a one-piece frame structure in which two frame members (28aH28a) are arranged in parallel with an appropriate distance (38) between them. and both frame materials (28a) (2
In addition to 8a), idling roller groups (39) are provided in the longitudinal direction of the frame material. In addition, this idle roller group (3
9) Ha! What is the slope of F descending toward the front end of r11 descending flake t, (28)? This principle 111 will become clear from the explanation of the operation described later. In addition, the interval (
38) is equipped with an integrated shuttle car (40) using the frame members (28a H28a) on both sides as guide rails, and the integrated shuttle car (40) is equipped with a reciprocating drive cylinder (4 It travels back and forth at the same time, and is always located at the front end of the lift frame.

A lock block (42) shown in FIG. 6 is erected at the front end of the elevating frame (28), thereby regulating the posture of the transfer claw (22) on the accumulation shuttle car (40).

That is, the transfer claw (22) is suspended from the stand (43) of the collection shuttle car (40) 1 by the pivot (44), and when in contact with the lock block (42), its V-shaped The engagement surface (22a) is regulated in an upward position, and as the shuttle car (40) moves away from the lock block (42), the pivot (44)
) and turn the V-shaped engagement surface (22a) in the lateral direction (towards the proximal end).

A horizontal fulcrum (
An arm (46) that rotates around the frame member (45) is equipped, and a commuter rainproof stopper member (47) is fixed to the tip of this arm, and the member (47) and the frame member (2
A spring member (49) is interposed between the bracket (48) fixed to the side surface of 8a). In addition, the commuter rainproof stopper part (47) "1 part to integrated shuttle car (40)"
A climbing guide rail (50) is attached to the side with a downward slope.

As the good steel billet (2D) reaches the front position of the collection table (!7) by the V roller conveyor (51), the traveling of the good steel billet (2D) is stopped by the stopper (20) described above. be done. Then, the rotational drive cylinder (37
) is activated, and the elevating frame (28) moves from the position (A) to the position (B) in FIG. Also, due to this rotation, the idle roller group (33) is moved to the top of the accumulating conveyor (23).

protrude in one direction. The transfer claw (22) engages the V roller conveyor (51N good quality steel piece (2D) with the V-shaped engagement surface (22a) II) by this l-'y+' and holds it.
, Gero. Next, the reciprocating cylinder (41) is activated and the integrated shuttle car (40) starts traveling. Therefore, the transfer claw (22) rotates away from the lock block (42) and places the non-defective steel piece (2D) on the idle roller Jff (39). According to the same circumstances, the guide member (50) is transported to the position (C) in Fig. 6 by traveling as described above, and on the way, the guide member (50) is
Get on it and get 11 euros. The crossing guide member (50) resists the spring M member (49) and sinks downward about the fulcrum (45) due to the punching of the good steel piece (2D), thereby causing the good steel piece (2D) to cross over the guide member (50) can be overcome smoothly. -I 1. , If you get over it, you will get a commuting barrier stopper m.
The food materials (47) are stored on the accumulating conveyor (23) of the accumulating platform (17) as the elevating frame (28) descends all the way to prevent the subsequent steel billet commuting.

Also, when the next good steel piece (2D) is sent, the transfer claw (22) also picks it up! −ge, integrated shuttle car (
40) Rainproof stopper part (47) for commuting by driving
Send it to the position where it crosses over. At this time, the good steel pieces (2D) placed on the accumulating conveyor (23) due to the previous transfer operation are moved + 1 + 1 - Idle roller group (39) 1 of the lifting frame (28)
However, since the idler roller group (39) is tilted as mentioned above, this piece of steel cannot be used for commuting! L・Slip the stopper toward the member (47),
As shown in arrow A in Figure 6, the quality steel billet (2D)
are arranged closely, and in that state, the lower frame (28)
The material is transferred to the accumulating conveyor (23) by dropping the material. In this way, a suitable number, for example, 5 good quality steel pieces (2D)
When they are arranged and transferred, the collecting conveyor (23) transports them to a position where they are suspended by lifting magnets on the right side of the drawing.

(Effects of the Invention) As described in detail above, according to the present invention, it is possible to perform batch automated processing for flaw detection and flaw removal of steel billets, so extremely high billet processing capacity can be expected.

[Brief explanation of drawings]

Fig. 1 is a top configuration diagram showing an embodiment of the steel billet eaves removal equipment according to the present invention, Fig. 2 is a diagram showing the steel billet conveying posture by V rollers, and Fig. 3 is a transfer device of a stacking table. Figure 4 is an enlarged view of the h-machi-dori frame shown in Figure 3, and Figure 5 is a ten-sided view of the part.
The figure is a side view of FIG. 4, and FIG. 6 is an explanatory diagram of the operation of the Itli device. (1)...Billage charging table, (5H7) (8)...Flaw detection device, (12)...Distribution device, (+3)(+4)(
15)...Flaw removal device, (■0) (11)...Transfer device, (+7)...Collection joint.

Claims (1)

[Claims] The steel billet is configured to be sequentially conveyed from the billet charging table to the flaw detection device, and the location and size of the flaw by the flaw detection device are registered with a registration number assigned to the steel billet. Several flaw removal devices that perform flaw removal based on the registered flaw detection position and size are installed following the flaw detection device, and between the flaw detection device and the flaw removal device, there is a A sorting device for sorting and conveying steel pieces in a direction perpendicular to the direction of conveyance thereof is provided, and the steel pieces from the flaw detection device are arranged to be sorted and conveyed to an empty flaw removing device, and the steel pieces from the flaw removing device are Flaw removal equipment for steel pieces that transports the pieces to a stacking table via a transfer device.