KR101220561B1 - Cutting and Lifting Device for Bar - Google Patents

Abstract

An object of the present invention is to provide a bad material treatment apparatus for quickly processing a bad material in a rolling process equipped with a heater, in order to achieve this, an apparatus for processing a bad material in a rolling process including a heating unit, a rolled material A bad material cutting means disposed in front of the heating part in a normal advancing direction of the bad material cutting material; And a bad material lifting means disposed adjacent to the heating unit and moving the bad material in the vertical direction, wherein the bad material lifting means comprises: a roll; A connection member rotatably fixing the roll; And a driving unit connected to the connection member to move the roll and the connection member in the vertical direction together.

Description

Bad material handling device {Cutting and Lifting Device for Bar}

The present invention relates to a defective material treatment apparatus used when a failure occurs in a rolled material, for example, a bar due to a malfunction occurring during rolling, and the removal of the defective material is required in the rolling process. Specifically, in the rolling process, when a heater for additional heating is disposed, a processing device capable of treating a defective material without damaging the rolling equipment even when the rolling material is deformed due to a malfunction due to a heating or cooling caused by a malfunction. It is about.

Since finishing milling takes a considerable time in hot rolling, the temperature of the rolled material at the beginning of the finish rolling and the temperature of the rolled material at the end of the finish rolling are different, thereby solving the problem of different degrees of rolling in the rolled material. In order to compensate for the temperature difference in the rolling material, a technique for arranging a heater in the rolling process has been proposed.

1 shows an example of a hot rolling process 1 in which a heater is introduced. As shown in FIG. 1, the rolled material 9 passes through the roughing mill 2 and the heaters 3, 4, passes through a finisher scale breaker (FSB), and enters the finishing mill 5.

Openings 31 and 41 are formed in the heaters 3 and 4 so that the rolled material 9 passes through the heaters 3 and 4 through the openings 31 and 41. In the first half of the rolling step, the transfer roll 8 is disposed to support the rolling material 9 passing through.

However, when malfunction occurs in finish rolling in such a hot rolling process, it is necessary to remove the rolling material 9 inside the finish rolling mill 5. Hereinafter, the rolling material 9 which needs to be removed is called a defective material.

The defective material 9 cannot be taken out in the normal traveling direction because the finishing mill 5 has malfunctioned. Therefore, the defective material 9 must be taken out in the reverse direction of the traveling direction. In this case, a method of cutting the defective material 9 and removing it by using a table roller (not shown) may be considered. However, when the defective material 9 is a bar, a worker may cut a bar of 30 to 60 mm in high temperature. Since the bad material needs to be cooled, the water supplied from the FSB is used as cooling water.

However, when the coolant is supplied, the defective material 9 is bent, and when the curved defective material 9 is higher than the height of the openings 31 and 41 of the heaters 3 and 4, the heaters 3 and 4 are inside. Interfering with the heat-resistant plate of the problem that the heat-resistant plate is detached. This situation is shown in FIG.

This curved shape is more large as the cutting of the bad material is delayed, and is not quickly removed due to the temperature of the bad material 9, and thus the loss of the roll of the finish rolling mill due to the temperature drop of the bad material accumulated in the finishing mill 5. There is a risk that it does not move even in the rough rolling direction, and the processing time through cutting is further increased, thereby increasing the malfunction processing time.

In addition, as shown in Figure 3a, the state of cutting the front of the curved portion of the defective material (9) is shown. When the front of the curved portion of the defective material 9 is cut and moved in the rough rolling direction, when one end of the defective material 9 is not supported by the feed roll 8 and is inserted into the heaters 3 and 4, the defective material In (9), the end part 92 which is not supported by the feed roll 8 is struck and the lower part of the openings 31 and 41 of the heaters 3 and 4 collides with the lower end of the inferior material 9, and the heaters 3 and 4 ) Is damaged.

The present invention is to solve the problems of the prior art, and an object of the present invention is to provide a defective material processing apparatus that can quickly process a defective material in a rolling process provided with a heater.

Moreover, an object of this invention is to provide the bad material processing apparatus which can process a bad material, without damaging a heater.

Moreover, an object of this invention is to improve the productivity by preventing the increase of the processing time by a malfunction by providing the improved defective material processing apparatus.

The present invention, in order to achieve the above object, provides the following configuration.

The present invention is a device for processing a bad material in a rolling process including a heating unit, comprising: a bad material cutting means disposed in front of the heating unit in the normal traveling direction of the rolled material, cutting the bad material; And a bad material lifting means disposed adjacent to the heating unit and moving the bad material in the vertical direction, wherein the bad material lifting means comprises: a roll; A connection member rotatably fixing the roll; And a driving unit connected to the connection member to move the roll and the connection member in the vertical direction together.

In the present invention, the heating unit is composed of a plurality of heating means, the defective material lifting means may be disposed between the plurality of heating means.

In addition, the defective material cutting means includes a support disposed in the width direction of the defective material in the defective material upper side, the traveling means connected to the support so as to move along the support; And a gas torch connected to the traveling means and moved together with the traveling means. The defective material may be cut using the gas torch.

In addition, the defective material lifting means comprises a roll; and a connecting member for rotatably fixing the roll; And a driving unit connected to the connection member to move the roll and the connection member together in the vertical direction.

Furthermore, in the present invention, the heating unit is composed of two induction heaters, the bad material lifting means is disposed between the induction heater, after the cutting of the bad material by the bad material cutting means is completed, the bad material lifting means By raising the bad material in the vertical direction, it can be configured to prevent the induction heater and the bad material contact.

In the present invention, a sensor is disposed in the opening of the heating unit, the sensor and the driving unit of the bad material lifting means are connected to a control unit, and the control unit controls the bad material lifting means according to the value of the sensor. The drive unit of the defective material lifting means can be operated so that the defective material prevents contact with the opening of the heating portion.

In addition, in the present invention, in the normal rolling operation, the roll of the defective material lifting means can be configured to be located below the adjacent transfer roll.

The present invention can provide a defective material processing apparatus that can quickly process the defective material in the rolling process, the heater is installed through the above configuration.

In addition, the present invention can provide a defective material treatment apparatus capable of treating the defective material without damaging the heater.

Moreover, this invention can improve the productivity by preventing the increase of the processing time by a malfunction by providing the improved defective material processing apparatus.

1 is a schematic view of a rolling process in which a heater is installed.
2 is a schematic view showing a malfunction state in a rolling process in which a heater is installed.
Fig. 3 (a) is a schematic diagram showing a state in which a heater is cut in a rolling process provided with a heater, and Fig. 3 (b) is a schematic diagram showing a state in which a bad material collides with an opening of a heater after cutting.
4 is a schematic view of a rolling process including a defective material treatment apparatus of the present invention.
5 is a front view of the defective material cutting means of the defective material processing apparatus of the present invention.
6A is a side view of the defective material lifting means of the present invention, and FIG. 6B is a cross-sectional view of the defective material lifting means according to the BB line of the present invention.
7 is an operational state diagram of the defective material processing apparatus of the present invention in the rolling step.

Hereinafter, with reference to the accompanying drawings, it will be described a defective material processing apparatus of the present invention.

In the present invention, the same configuration as in the prior art will be described using the same reference numerals.

In the present invention, the defective material means a rolling material that needs to be removed by a malfunction during rolling, and uses the same reference numerals as the rolling material.

4 is a schematic view of a rolling process including the defective material treatment apparatus of the present invention.

As shown in FIG. 4, in the defective material treating apparatus of the present invention, the induction heaters 3 and 4 are disposed between the rough rolling mill RM and the finish rolling mill FM in the same manner as the rolling process described in the background art. The openings 31 and 41 are formed in 3 and 4, and the rolling material 9 passes through the openings 31 and 41. The rolled material 9 passing through the heaters 3 and 4 is sprayed with water for descaling in the FSB.

The defective material processing apparatus 400 of the present invention does not operate when the rolling process is operated in a normal state, and when there is a malfunction in the rolling process, that is, when the rolling material 9 becomes a defective material and needs to be removed in the rolling process. Works.

The defective material processing apparatus 400 includes a defective material cutting means 100, a defective material lifting means 200, and a controller 300. The defective material cutting means 100 cuts the defective material 9 in the width direction from the top of the defective material 9, and the defective material lifting means 200 is disposed between the transfer rolls 8 between the heaters 3 and 4. It is arranged, pushing up the defective material (9).

A distance sensor 301 is disposed in the openings 31 and 41 of the heaters 3 and 4 to detect in advance the breakage of the heaters 3 and 4 due to the defective material 9. The defective material lifting means 200, the distance sensor 301, and the defective material cutting means 100 are connected to the controller 300.

The control unit 300 operates the defective material lifting means 200 after the cutting of the defective material 9 by the defective material cutting means 100 is completed, and the distance sensor 301 provided in the opening 31 of the heater 3. ), The control unit 300 drives the defective material lifting means 200. That is, when a signal indicating that the defective material 9 is close from the distance sensor 301 mounted on the upper side of the opening 31 comes, the defective material 9 is lowered through the defective material lifting means 200 or the opening ( When a signal indicating that the defective material 9 is close comes from the distance sensor 301 mounted on the lower side of 31, the defective material 9 can be raised through the defective material lifting means 20.

In the case of the bad material cutting means 100, it is preferable that the gas torch 120 (see FIG. 5) is disposed between the feed roll 8 and the feed roll 8, and in the case of the bad material lifting means 200. Between the roll 8 and the conveying roll 8, the roll 201 of the defective material interfering means 200 is disposed at a lower position than the conveying roll 8, and ascends to a position higher than the conveying roll 8 only when a malfunction occurs. It is preferable to become.

Hereinafter, the defective material cutting means 100 and the defective material lifting means 200 will be described in more detail.

5 shows a front view of the defective material cutting means 100. As shown in FIG. 5, the defective material cutting means 100 extends transversely on the feed roll 8 and the feed roll support 81.

The defective material cutting means 100 is supported by the vertical supports 101 and 102 and the horizontal supports 103 connecting them, and the vertical moving parts 110 are guided to the vertical supports 101 and 102. Guide rails 103 and 104 are formed. The vertical movement unit 110 includes a driving unit (not shown) and an end portion 113 having a shape corresponding to the guide rails 103 and 104, and receives a signal from the control unit 300. D), the descent is stopped when a signal indicating that the defective material from the sensor 140 is approached.

In this embodiment, the vertical movement unit 110 is disposed below the horizontal support 103 so that the vertical movement unit 110 is raised or lowered. However, the vertical movement unit 110 is disposed directly on the horizontal support 103 without the vertical movement unit. It is also possible to mount the travel means 130 and the gas torch 120.

The vertical moving unit 110 is equipped with a traveling means 130, a gas torch 120, a sensor 140, and the traveling means 130 includes a driving unit not shown, and due to the operation of the driving unit, The wheel 132 may rotate and move in the transverse direction along the vertical moving part 110.

A gas torch 120 is connected to the traveling means 130, and the gas torch 120 is along the vertical moving portion 110 along with the traveling means 130. It can be moved in the width direction, this transverse movement to cut the bad material (9).

The gas torch 120 has a gas torch body 124, a torch 121, a fixing bracket 123 for fixing the torch 121 to the gas torch body 124, and a supply pipe 125 for supplying gas to the torch 121. ).

When the defective material cutting means 100 receives a signal for cutting the defective material from the controller 300, the vertical movement unit 110 descends. The vertical movement unit 110 stops the movement in the vertical direction when the signal from the sensor 140 is approached to the defective material 9.

When the movement of the vertical movement unit 110 is stopped, the traveling means 130 is along the rail 111 of the vertical movement unit 110, the initial position of the defective material cutting, that is, of the defective material 9 The gas torch 120 is moved to one end in the width direction. In this position, the gas torch 120 is ignited and cuts the bad material 9.

The gas torch 120 is moved to the other end portion in the width direction of the defective material 9 together with the traveling means 130 while cutting the defective material 9, so that the cutting of the defective material 9 may be completed. When the cutting of the defective material 9 is finished, the gas torch 120 is extinguished, and the vertical moving part 110 returns to its original position.

6A and 6B illustrate the defective material lifting means 200 of the defective material processing apparatus 400 of the present invention. As described above, the defective material lifting means 200 is disposed between the conveying rolls 8, and is disposed at a position lower than the conveying roll 8 in the initial position (solid line), and the defective material processing is required. It raises to a position higher than the feed roll 8 at the time.

The defective material lifting means 200 is connected to the roll 210 and the connecting member 220 and the connecting member 220 to rotatably support the driving unit and to connect the driving unit to move the roll 210 in the vertical direction. The drive unit 240 is included.

The roll 210 includes a shaft 212, which is rotatably fixed by a bearing 215 mounted to the connecting member 220. The connecting member 220 is fixed to the upper connecting member 221 and the upper connecting member 221 for supporting the shaft portion 212 of both ends of the roll 210 through the bearing 215, the drive unit 240 and the guide It includes an intermediate connecting member 222 moving integrally with the portion 230.

The intermediate connecting member 222 moves integrally with the driving unit 240 disposed between the two guide parts 230 and the guide parts 230. The guide part 230 does not rotate in the horizontal direction with respect to the driving unit 240 along the guide hole 232 mounted on the support 250, the intermediate connecting member 222 and the upper connecting member 221. Guide the movement of the connecting member 220 to move up and down vertically.

The driving unit 240 is disposed between the two guide parts 230 below the roll 210, the rod 241 is connected to the intermediate connecting member 222, by the movement of the rod 241 the intermediate connecting member ( 222 and the roll 210 connected thereto move together.

7 shows a driving state of the defective material lifting means 200 of the present invention. As shown in FIG. 7, the defective material lifting means 200 is disposed below the transfer roll 8 between the transfer rolls 8 in the normal state. However, when a malfunction occurs, the defective material 9 is cut by the defective material cutting means 100, and when the defective material 9 is removed by rotating the table roller or roughing mill reversely, the defective material lifting means 200 rises to support the defective material 9.

As mentioned in the background art, when the defective material 9 is curved and one end 92 is not supported by the feed roll 8, one end 92 of the defective material 9 is a heater ( Since there is a possibility of colliding with the opening 41 of 4), the roll 210 of the defective material lifting means 200 is lifted by the drive unit 240 to raise the defective material 9. Accordingly, the one end 92 of the defective material 9 is also raised, so that there is no fear that the one end 92 of the defective material 9 and the opening 41 of the heater 4 collide with each other.

In this way, after the defective material 9 passes through the heater 4 and passes through the next heater 3, the heater 3 and the defective material 9 are passed through the other defective material lifting means 200 and the sensor 301. ) Collision can be avoided.

In the present invention, a plurality of defective material lifting means 200 may be arranged as needed, but when there are two or more heaters, it is effective to control the height of the defective material 9 when disposed between the heaters 3 and 4. .

In addition, although various heaters can be used as the heater of this invention, it is preferable to use an induction heater which does not contact with a rolling material.

100: defective material cutting means 101, 102, 103: support
110: vertical moving part 120: gas torch
130: traveling means 200: defective material lifting means
210: roll 220: connecting member
230: guide part 240: drive unit
250: support part 300: control part
400: bad material cutting device

Claims (6)

An apparatus for treating a defective material in a rolling process including a heating unit,
A bad material cutting means disposed in front of the heating part in a normal traveling direction of a rolled material and cutting bad materials; And
Is disposed adjacent to the heating portion, and includes a bad material lifting means for moving the bad material in the vertical direction,
The defective material lifting means is a roll; A connection member rotatably fixing the roll; And a driving unit connected to the connection member to move the roll and the connection member together in the vertical direction.
The connecting member includes an upper connecting member supporting the roll and an intermediate connecting member connected to the upper connecting member and integrally moved with the driving unit 240 and the guide part 230 for guiding the lifting movement of the roll.
The defective material cutting means may include: a support disposed on the defective material in the width direction of the defective material on an upper side of the defective material, the driving means movably connected to the support and traveling along the support; And a gas torch connected to the traveling means and moved together with the traveling means, wherein the gas torch is used to cut a defective material.
A distance sensor is disposed in the opening of the heating unit, and the sensor and the driving unit of the defective material lifting means are connected to a control unit, and the control unit controls the defective material lifting means according to the signal of the sensor. And a driving unit of the defective material elevating means for preventing contact with the opening of the heating unit. The method of claim 1,
The heating unit is composed of a plurality of heating means,
The defective material lifting means is disposed between the plurality of heating means. delete 3. The method according to claim 1 or 2,
The heating unit is composed of two induction heaters,
The defective material lifting means is disposed between the induction heater,
And after the cutting of the defective material is completed by the defective material cutting means, the defective material lifting means is configured to raise the defective material in the vertical direction to prevent contact between the induction heater and the defective material. . delete The method of claim 1,
In the normal rolling operation, the roll of the bad material lifting means is configured to be located below the adjacent transfer roll, characterized in that the bad material processing apparatus.

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