KR20020049770A - Apparatus for preventing product of bad coil - Google Patents

Abstract

PURPOSE: An apparatus for preventing defects of a wire rod coil is provided to fundamentally prevent defects of the wire rod coil piled on a roller table in the hot rolled state by piling the wire rod coil on the roller table onto a subsidiary reform tube during obstruction of the postprocessing. CONSTITUTION: The apparatus for preventing defects of a wire rod coil comprises a roller table(17) at the exit side of which a plurality of short rollers(20) are installed, the short rollers(20) are formed in such a manner that gaps between the rollers(20) are gradually extended so that the wire rod coil(10) is easily drawn out; a chain conveyor(40) which is installed between the roller table(17) and a lead roller table and ascended by eccentric wheels as a moving sprocket is being moved back when a transfer car(44) is moved back along a rail by operation of a cylinder, wherein tension of a chain is maintained by tension sprockets descended along with a weight; and a subsidiary reform tube part which is installed between the roller table(17) and the chain conveyor(40), one reel of the wire rod coil(10) drawn out from the roller table(17) is piled on the lower part of a subsidiary reform tube when a resting stand is ascended by a cylinder(32), and which supports one reel of the wire rod coil(10) piled on the upper part of the subsidiary reform tube as a separation arm is being projected through a guide hole when an operation plate connected by a link is rotated by the advance operation of a cylinder installed on the support plate.

Description

Failure prevention device of wire rod coil {APPARATUS FOR PREVENTING PRODUCT OF BAD COIL}

The present invention relates to a device for preventing the occurrence of a failure of the wire rod coil, and more particularly, the failure of the wire coil deposited on the roller table in the hot state by operating the roller table normally without deceleration or stoppage of the roller table due to the failure of the post process. It relates to a failure occurrence prevention device of the wire rod to prevent the occurrence.

Generally, the hot billet material passes through a rolling mill of several stages, and then passes through a final rolling mill (1), a water cooling stand (2), and a pinch roll (3), as shown in FIG. It is converted into the wire rod coil 10 which is helical, and then falls on the roller table 7.

The wire rod 10 in the hot state (780 to 880 ° C.) conveyed by the roller table 7 has a slow running speed of 0.3 m / s or less in the case of the slow cooling material, and the slow cooling cover 6 is closed. The blower 9 is not operated.

In addition, the wire coil 10 of the quenching material has a fast running speed of 0.85 m / s, the cooling zone by the air injected from the nozzle 11 by operating the blower 9 with the slow cooling cover 6 open In this process, cooling transformation (recrystallization) is performed.

In particular, the wire coil 10 of the air-cooling material is a cooling method that allows the slow cooling cover 6 to be naturally cooled in the air without the blower 9 being operated.

As such, the wire coil 10 is subjected to the recrystallization process while passing through the roller table 7 in accordance with the cooling pattern given by the steel type, thereby determining the mechanical properties such as tensile strength, elasticity, strength, etc. that the final product should have. .

However, after the wire coil 10 passes through the roller table 7, it is vertically dropped to be placed in the reform tube 8, or drawn out from the reform tube by the sail unit car 51, and then the hook ( In the process of conveying by 50), the roller table speed is slowed down or stopped in order to prevent chain failure.

As a result, there arises a problem that the wire rod 10 in the hot state deposited on the roller table 7 is poorly processed.

The present invention provides an apparatus for preventing failure of wire rods that can prevent the failure of wire rods deposited on the roller table in a hot state by placing the wire coils on the roller table on the auxiliary reforming tube in the event of a failure of the post process. Has its purpose.

1 is a configuration diagram showing a cooling facility and a correction facility of a conventional wire rod coil;

Figure 2 is a block diagram showing a cooling device of the wire coil is installed with a failure prevention device of the wire coil according to the present invention

Figure 3 is a perspective view showing the auxiliary reforming tube portion of the failure occurrence prevention device of the wire coil according to the present invention,

4 is a cross-sectional view taken along line A-A of FIG.

5 is a perspective view showing a chain conveyor of the failure prevention device of the wire coil according to the present invention.

<Description of the symbols for the main parts of the drawings>

DESCRIPTION OF SYMBOLS 1: Rolling mill 2: Water chiller 3: Pinch roll 5: Winding machine 6: Slow cooling cover 7: Roller conveyor 7-1: Chain conveyor 7-2: Lead roller table 8: Reform tube 9: Blower 10: Wire coil 11: Nozzle 30: auxiliary reform tube portion 40: chain conveyor

In order to achieve the above object, the present invention provides a roller table having a plurality of shot controllers installed at the exit side thereof, the shot controllers being formed so that the gap between the rollers is gradually enlarged to induce easy extraction of the wire rod coil; When the trolley is retracted along the rail by the operation of the cylinder while being installed between the roller table and the lead roller table, the movement of the sprocket is reversed and ascended by the eccentric wheel and the tension of the chain is maintained by the tension sprocket descending with the weight. Chain conveyor; When the seating plate is raised by the cylinder while being installed between the roller table and the chain conveyor, one of the wire coils drawn out from the roller table is loaded on the lower side of the auxiliary reforming tube, and the link is moved by the forward operation of the cylinder installed on the support plate. When the connected operating plate is rotated, the separation arm protrudes through the guide hole, and the auxiliary reforming tube part supporting the one wire rod stacked on the upper side of the auxiliary reforming tube; defective occurrence of the wire coil, characterized in that consisting of Provide prevention device.

The configuration of the present invention will be described with reference to the drawings.

Figure 2 is a block diagram showing the cooling equipment of the wire rod coil is installed failure prevention device of the wire coil according to the present invention, Figure 3 is a perspective view showing the secondary reforming tube portion of the failure occurrence prevention device of the wire coil according to the present invention, 4 is a cross-sectional view taken along line AA of FIG. 3, and FIG. 5 is a perspective view showing a chain conveyor among devices for preventing failure of wire rods according to the present invention.

In the roller table 17 of the present invention, three rollers on the outlet side are replaced by the short rollers 20. The three short rollers are gradually shortened in length, and the wire rod coils are widened. (10) facilitates withdrawal to the chain conveyor 40 or the auxiliary reform tube 29 provided between the roller table 17 and the lead roller table 7-2.

In addition, the chain conveyor 40 installed in place of the conventional chain conveyor 7-1 has three chains 47 each having a movable sprocket 46 and a fixed sprocket 46-1, 46-2, 46-3. It is structured to be wound around and driven.

At this time, the moving sprocket 46 installed to rotate about the connecting shaft 45-1 is configured to be supported by the trolley 44, and the trolley travels along the rail 42 by the eccentric wheel 41 again. Done.

Here, the wheel shaft (41-1) is installed eccentrically on the eccentric wheel (41) to raise and lower the trolley (44) during rotation, in particular, the moving sprocket 46 is raised by the eccentric wheel (41) during the reverse roller It becomes higher than the level of the exit side of the table 17, and prevents the phenomenon that the wire coil 10 pulled out from the roller table rests on the chain conveyor 40. FIG.

In addition, a cylinder 43 is connected to the bogie connecting shaft 45 connecting the bogie 44, and the bogie moves forward and backward along the rail by the bogie connecting shaft during operation of the cylinder.

In addition, the tension sprockets 48-1 and 48-2, which are installed to maintain the tension of the chain 47 that is loosened when the moving sprocket 46 moves backward, are rotated about the central axis 38. Is linked by).

At this time, the weight sprocket 48-1 is installed on the weight 49, and when the chain 47 is loosened, the weight is lowered by its own weight to maintain the tension of the chain.

On the other hand, the auxiliary reform tube portion 28 is provided in a space secured between the chain conveyor 40 and the roller table 17 by the reverse of the moving sprocket 46.

In other words, the seating table 26 is moved by the cylinder 32 so that the seating platform 26 can be moved. The auxiliary reforming tube 29 is fixedly installed on the seating table 26.

At this time, the auxiliary reform tube 29 is formed so that the four guide holes (29-1) in the circumferential direction spaced apart from each other at regular intervals at the interruption of the outer circumferential surface, the upper surface of the support plate 35, the interruption side is built-in fixed Four separation arms 31 are installed to interlock.

That is, when the cylinder 32 moves forward, the operating plate 36 rotates while the link 33 is interlocked and the operating plate rotates at the same time. As a result, four separation arms 31 are rotated by the rotating operating plate. It is installed to protrude through the guide hole (29-1).

Here, the separation arm 31 supports the one wire rod 10 stacked on the upper side of the auxiliary reform tube 29 to separate the one wire rod stacked on the lower side of the auxiliary reform tube. Will be

The operation of the present invention will be described below.

After the wire coil 10 passes through the roller table 17, the wire coil 10 is vertically dropped to be placed on the reform tube 8, or is drawn out of the reform tube by the sail unit car 51, and then the hook 50 is used. When the failure occurs in the course of transport by the cylinder 43 is reversed to move the trolley 44 connected to the trolley connecting shaft 45 along the rail 42.

At this time, as the sprocket connecting shaft 45-1 is reversed, the chain 47 wound on the sprockets 46,46-1,46-2,48-3 is loosened, and thus the weight 49 is tension sprocket ( When the 48-1) is lowered, the tension bar sprocket 48-2 is rotated while the link bar 39 is rotated about the central axis 38 to maintain the tension of the chain 47.

And the eccentric wheel 41 which moves the trolley | bogie 44 backward moves the wheel axle 41-1 to the uppermost position, and raises a trolley | bogie, and the fixed sprocket 46 moves the position of the roller table 17 by this. By raising it higher, the wire coil 10 drawn out from the roller table 17 is prevented from being seated on the chain conveyor.

As such, when the inlet side of the chain conveyor 40 is reversed and the space between the roller conveyor 17 is secured, the auxiliary reform tube 29 is raised together with the seating plate 26 while the cylinder 32 is operated. .

Here, when the wire coil 10 falls through the short roller 20 of the roller conveyor 17, it is placed on the auxiliary reforming tube 29, and when the wire rod of one bone is deposited on the lower portion of the auxiliary reforming tube, the cylinder 32 Is advanced.

At this time, when the operation plate 36 is rotated and the link 33 is pushed in sequence by the forward operation of the cylinder 32, the four separation arms 31 simultaneously protrude outwards through the guide holes 29-1. The next one of the wire rod coil 10 integrated in the tube 29 is divided and supported.

Therefore, the auxiliary reforming tube 29 can be separated and stacked using two wire coils 10 protruding using the separating arm 31.

According to the present invention, when the wire rod coil on the roller table is deposited on the auxiliary reforming tube in the event of a failure in the post process, it is possible to fundamentally prevent the failure of the wire coil deposited on the roller table in the hot state and to increase the productivity of the work. Will be provided.

Claims (1)

A roller table 17 having a plurality of shot controllers 20 installed at an outlet side thereof, the shot controllers 20 being formed so that the gap between the rollers is gradually enlarged to induce easy extraction of the wire rod 10; Installed between the roller table 17 and the lead roller table 7-2, when the bogie 44 is retracted along the rail 42 by the operation of the cylinder 43, the moving sprocket 46 is reversed and the eccentric wheel at the same time. A chain conveyor 40 which is lifted by 41 and the tension of the chain 47 is maintained by tension sprockets 48-1 and 48-2 which are lowered together with the weight 49; When the seating table 26 is raised by the cylinder 32 while being installed between the roller table 17 and the chain conveyor 40, the wire rod drawn out from the roller table 17 on the lower side of the auxiliary reforming tube 29. When one of the coils 10 is loaded and the operation plate 36 connected by the link 33 is rotated by the forward operation of the cylinder 32 installed on the support plate 35, the separation arm 31 is guide hole 29. The auxiliary reformed tube portion 28 which protrudes through -1) and supports one wire rod 10 stacked on the upper side of the auxiliary reformed tube 29; Defect prevention device.