KR102170943B1 - Replacement apparatus for table roll - Google Patents

Abstract

The table roll replacement device according to the present invention is a table roll replacement device for replacing a table block provided with a table roll for transferring a strip, in which one table block is disposed in parallel in the strip transfer direction. A changer that replaces using a replacement means; And a control unit that controls whether or not the replacement means is operated.

Description

Table roll replacement device {REPLACEMENT APPARATUS FOR TABLE ROLL}

The present invention relates to a table roll replacement device for replacing a table roll provided for continuous production of ultrathin materials.

The CEM (Compression Continuous Casting and Rolling Equipment) process is a technology that makes a coil (thin iron in the form of a roll of paper) by rolling a high-temperature slab (a thick iron in the shape of a long cuboid rod) without cooling it to room temperature. In CEM's continuous rolling production facility, steel plates are produced as final products through high-speed continuous casting, high-speed continuous rolling, and finishing winding after rolling in a high-speed continuous rolling and finishing rolling winder.

On the other hand, when any one of the table rolls carrying the rolled CEM steel plate that must be continuously rapidly produced has a driving failure or an operation abnormality, various problems have occurred because the table roll is not replaced quickly in the related art. First, the production operation had to be stopped to prevent an abnormality in the strip quality, which led to a significant decrease in productivity. In addition, there was a loss of having to dispose of the pre-engineered metal as it is. This is due to the solidification phenomenon in which the metal hardens over time. In addition, since table roll replacement or maintenance is forced to be performed quickly, workers are exposed to the risk of industrial accidents and difficulties in securing the quality of facility repairs.

In addition, when producing ultra-thin materials in a continuous rolling production facility, there is a problem that frequent malfunctions such as overlapping the tip or end of the material like paper or getting caught on the table roll due to various interferences around the table roll.

0001) Korean Patent Application Publication No. 10-2014-0033875 (published on March 19, 2014)

An object of the present invention is to provide a table roll replacement device capable of performing an immediate replacement operation when an abnormality occurs in a table roll that induces stable production of an iron plate.

In addition, it is possible to provide a table roll replacement device capable of preventing a malfunction caused by a plate jamming or overlapping when an ultrathin material enters or leaves the tip end.

According to an aspect of the present invention, in the table roll replacement device for replacing a table block provided with a table roll for transporting a strip, one table block is replaced with another table block arranged parallel to the strip transport direction. A replacer that is replaced by means; And a control unit for controlling whether or not the replacement means is operated.

The table block may include a slip prevention sprocket moving along a fixedly installed chain rail.

The table block may further include a wheel supporting the load and rotating together with the sprocket.

The table block may further include a drag chain provided to smoothly supply power or hydraulic pressure even when the position is moved.

The replacer includes: a location bar provided on the table block; And a sensor for measuring the moving distance of the table block by sensing the location bar, wherein the control unit may control whether or not the replacement means is operated with the information measured by the sensor.

The changer includes a fixing member fixedly installed on the ground; And a fixing means provided on the table block and fastened to the fixing member during operation to limit movement of the table block, wherein the control unit controls whether or not the fixing means is operated with information measured by the sensor. can do.

The table roll replacement device may further include an upper calibration unit for injecting or sucking fluid from above and below the strip, and a straightener for stably transferring the strip using the lower calibration unit.

The upper correction unit may include an upper duct rotatable about a swing arm from an upper side of the strip; And a movable means connected to the upper duct, and when actuated, the movable means is operated so that the outlet of the upper duct is positioned at a predetermined interval above the strip.

The lower calibration unit may include a lower duct provided at a predetermined distance from the lower side of the strip, and may suck a fluid toward the lower duct during operation to attach the strip toward the table roll.

The control unit adjusts the flow rate of the upper calibration unit or the lower calibration unit, and operates the straightener when replacing the table block using the changer to prevent the strip from being temporarily sagged.

The table roll replacement apparatus according to the present invention includes a replacement device that replaces the failed table block with another table block using the replacement means, and the control unit is provided to control the operation of the replacement means, thereby automating replacement and repair work in case of table roll failure. I can.

In addition, including the upper and lower correction units that inject or suck fluid from the upper and lower portions of the strip, the ultra-thin lightweight steel plate cut in the multi-product small-scale production CEM is meandering or traversing, preventing plate stacking malfunctions due to shape defects. It can be prevented in advance.

In addition, the control unit may adjust the flow rate of the upper or lower calibration unit, and the control unit may operate the straightener when replacing the table block by using the changer to prevent temporary stripping.

Therefore, according to the present invention, when the table roll fails to drive, it is possible to immediately replace it with an automated method from the method of performing manual replacement repair work after stopping production, and when cutting the strip using a cutter, the plate due to shape defects at the tip and rear ends It can prevent overlapping.

1 is an overall view of a table roll replacement apparatus according to an embodiment of the present invention.
2 is an operation diagram of a replacement device according to an embodiment of the present invention.
3 shows a method of fixing a table block according to an embodiment of the present invention.
4 is an operation diagram of an upper calibration unit of a calibrator according to an embodiment of the present invention.
5 is an operation diagram of a lower calibration unit of a calibration device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are presented in order to sufficiently convey the spirit of the present invention to those of ordinary skill in the art to which the present invention pertains. The present invention is not limited to the exemplary embodiments presented here, but may be embodied in other forms. In the drawings, in order to clarify the present invention, portions not related to the description may be omitted, and sizes of components may be slightly exaggerated to aid understanding.

Conventionally, when any one of the table rolls is driven or an abnormality occurs using a plurality of table rolls, defects occur on the surface of the produced ultra-thin CEM hot rolled coil product, and the production operation has to be stopped quickly, which is a damage that significantly reduces productivity. Followed. In addition, since the start of production according to the table roll replacement repair completion time is dominated, repair quality deterioration and inventory problems occurred due to hasty repair work. Hereinafter, a table roll replacement apparatus for solving the above-described problems with reference to the drawings is disclosed.

1 is an overall view of a table roll replacement apparatus according to an embodiment of the present invention. 2 to 5 show the operation of the respective parts, FIG. 2 shows the operation of the replacer 100, FIG. 3 shows the fixing method of the table block 110, and FIG. 4 is a straightener 200 It is an operation diagram of the upper correction unit 210, and Fig. 5 shows an operation diagram of the lower correction unit 220.

Referring to the drawings, the table roll replacement apparatus according to an embodiment of the present invention largely converts the target table block 10 to a replacement table block 110 arranged parallel to the strip (S) transfer direction using the replacement means 120. It may include a replacement replacement device 100, and a straightener 200 for preventing the lifting phenomenon by spraying a fluid to the strip (S) on the strip (S) progress line.

The strip (S) may be a thin steel plate generated through a rolling process. The rolling process is a process of producing a steel plate of a desired thickness by rolling a relatively thick slab several times.It includes the process of supplying a strip that has undergone a finishing rolling mill to a cooling zone and producing a strip of desired properties using cooling water. I can. Meanwhile, the strip transfer line is a process line for transferring the above-described strip (S), and may be provided between the finishing mill and the take-up machine of the hot rolling line.

The table blocks 10, 20, 30, 110 are means for transferring the strip S, and may induce transfer of the strip using a table roll provided on the upper side of the table block. Here, the target table block 10 is a table block 10 to be replaced, and may include a table roll and a power device operated at the same size and speed as the replacement table block 110 to be described later. In addition, the entry table block 20 and the exit table block 30 may be strip (S) mail order means provided in a row on the strip (S) progress line, similar to the target table block (10).

The replacer 100 can replace any one of the broken table blocks by pushing and replacing the other table block 110 with the other table block 110 arranged in parallel in the transfer direction of the strip (S). For example, it may be operated in a manner of pushing and replacing the failed target table block 10 moving along the wheel rail 150 with the replacement table block 110 moving by a hydraulic cylinder.

A plurality of table rolls 111 and a motor power unit 112 for driving the table rolls 111 are directly connected to the upper portion of the replacement table block 110 to form as close contact as possible, thereby reducing the size thereof. This enables space utilization and efficient replacement work by removing the universal joint of the long axis installed to replace the conventional table roll. At this time, the table roll 111 is a run out table roller between the finishing rolling machine and the take-up machine of the hot rolling line, and can be operated by the power device 112 which is an electric motor.

The replacement means 120 may advance the table block 110 with a cylinder rod 121 extending during operation as a hydraulic cylinder. At this time, the fastening extension 113 extends from the table block 110 toward the ground to couple with the cylinder rod 121, and transmits a force applied by the replacement means 120 to the table block 110.

The replacement table block 110 supports the anti-slip sprocket 131 moving along the fixedly installed chain rail 151 and the load of the table block 110 and rotates together with the sprocket 131 along the wheel rail 150 It may include a wheel 130.

The sprocket 131 may be a mechanical element for electric transmission that is fixed to a rotation shaft and interposed between each node of a chain, engaged with each other, and rotated to transmit power. For example, the sprocket 131 is a chain gear and can reliably transmit a large power of the replacement means 120 to a long distance without slipping. These sprockets 131 are installed in parallel with a plurality of wheels 130 on both sides of the front and rear to assist in the replacement start of the installed replacement table block 110, so that the replacement table block 110 can perform a slip prevention function when driving. have.

The drag chain 140 may be provided to smoothly supply power or hydraulic pressure to the table block 110 even when the position of the table block 110 is moved. That is, the drag chain 140 may be provided to continuously supply power, electricity, and hydraulic pressure even when the replacement table roll 111 on the replacement table block 110 is moved by changing its position.

The sensing unit 160 and the fixing unit 170 may be provided to accurately position the replacement table block 110 at a desired location and perform a fixing operation. To this end, the sensing unit 160 includes a sensor 161 for measuring the moving distance of the table block 110 by detecting the position bar 162 and the position bar 162 provided in the table block 110, and The government 170 includes a fixing means 172 provided on the table block 110, a fixing member 173 that is fastened to the fixing means 172 when fixing the position to limit the movement of the table block 110, and the control unit 300 may control the operation of the replacement means 120 using the information measured by the sensor 161.

The sensor 161 may be a distance sensor operated by an ultrasonic method to determine whether the location bar 162 is approaching. The ultrasonic method is a method of knowing the distance by transmitting an ultrasonic wave with sharp directivity to the object to be measured to receive a reflected wave from the object to be measured, and a piezoelectric element can be used as a reception sensor. In addition, the location bar 162 is a round bar that is curved toward the sensor 161 to reflect ultrasonic waves, and may be installed under the table block 110.

The position fixing bar 171 is a frame extending from the lower side of the table block 110 toward the ground, and may provide an installation surface of the fixing means 172 which is a hydraulic cylinder. The control unit 300 operates the fixing means 172 while stopping the operation of the replacement means 120 with the information measured by the sensor 161, and when operating, the cylinder rod extending downward from the fixing means 172 is placed on the ground. It is possible to restrain the movement of the table block 110 by being fitted into the fixed fixing member 173.

The straightener 200 discharges a large amount of air to the upper portion of the strip (S) or sucks air from the lower portion of the strip (S), and closes the strip (S) to the table roll 111 to help a stable plate. To this end, the straightener 200 includes an upper correction unit 210 and a lower correction unit 220 provided on the strip (S) line path and spraying or sucking fluid from above and below the strip. That is, the straightener 200 may prevent a lifting phenomenon by injecting a fluid toward the table roll 111 on the strip S progress line.

The upper correction unit 210 includes an upper duct 211 rotatable around the swing arm 213, a movable means 215 connected to the upper duct 211, and the movable means 215 is a cable ( By winding 214, the outlet of the upper duct 211 may be positioned at a predetermined interval above the strip S.

The upper duct 211 is provided in the form of a gradually expanding tube and serves to spread air widely, and the bellows 212 is a curved pipe that forms a flow path, and is provided for stable fluid supply when the discharge direction of the upper duct 211 is changed. do. And the swing arm 213 performs a hinge region that supports rotation of the upper duct 211, and the cable 214 is wound by the movable means 215 as a means for transmitting power generated from the movable means 215 Can be released or released. The movable means 215 may operate when the table roll is inspected and repaired or other abnormalities so that the upper duct 211 is directed toward the strip (S).

On the other hand, the upper calibration unit 210 is provided to inject the purge gas toward the strip (S), it is possible to use the existing equipment as it is. At this time, if the spreading unburned gas is occupied in the furnace or in other places, it may explode when ignited. This means ventilation to discharge it out of the furnace before igniting it.

The lower correction unit 220 may include a lower duct 221 provided below the strip S at a predetermined distance apart, and an extension duct 222 extending from the lower duct 221 and facing the outside. Like the upper calibration unit 210, the lower calibration unit 220 is provided to help improve mail-order properties. The air discharged from the upper correction unit 210 is strongly sucked from the lower portion of the table roll 111, and the thin plate of the strip (S) proceeding therewith is in close contact with the table roll to help a stable plate.

The control unit 300 controls the flow rate of the upper calibration unit 210 or the lower calibration unit 220, and operates the straightener 200 when replacing the table block 110 using the changer 100 to temporarily strip (S) Can prevent sagging. For example, when the table block 110 is replaced, the upper correction unit 210 and the lower correction unit 220 discharge air in opposite directions, thereby preventing the strip S from sagging. The upper correction unit 210 sucks air, and the lower correction unit 220 discharges air to prevent the strip (S) from being struck by a load and being caught on the side of the table roll 111.

Hereinafter, the organic operation and operation sequence of the above-described components will be described. First, on the side of the table blocks 10, 20, and 30 provided on the strip (S) progress line, the necessary number of replacement table blocks 110 that are automatically replaced and used after repair and assembly settings are completed in parallel are provided.

When an abnormality occurs in the table roll that is transferred to the winding facility for the final winding operation after rolling the strip (S), the replacement means 120 moves the replacement table block 110 to a position to be driven and replaced.

When the replacement table block 110 approaches the target position through the lower wheel 130 and the anti-slip sprocket 131, the position bar 162 installed under the replacement table block 110 is transferred to the sensor 161. It detects and stops the starting of the replacement table block 110 being replaced at the correct position. In order to more accurately position the replacement table block 110 on the mail order line, the fixing means 172, which is a hydraulic cylinder, is fitted to the fixing member 173 provided in a shape corresponding thereto.

When detecting that the replacement table block 110 is accurately positioned at the target point using the sensor 161, the calibrator 200, which has been waiting at the position, is used for the upper calibration unit 210 to inject or suck fluid, and Using the top 220, the strip (S) is stably transferred by removing the lifting phenomenon or fluttering of the line and rear end of the strip (S). At this time, the upper correction unit 210 discharges the fluid toward the strip (S) to pressurize it toward the table roll, and the lower duct 221, which was waiting under the table roll 111, strongly sucks the air discharged from the upper part to Induce a stable entry of the front or rear end of (S).

Therefore, the table roll replacement apparatus according to the present invention includes a replacement device 100 for replacing the failed table block 10 with another table block 110 using the replacement means, and the control unit 300 is By controlling the operation, it is possible to automate replacement and repair work in case of table roll failure.

In addition, including the upper and lower correction units 210 and 220 for spraying fluid from the upper and lower portions of the strip (S), the ultra-thin lightweight steel plate cut in a multi-product small-scale production CEM is meandering or traversing. It is possible to prevent plate overlap malfunction due to poor shape.

In addition, the control unit 300 adjusts the flow rate of the upper calibration unit 210 or the lower calibration unit 220, and operates the straightener 100 when replacing the table block by using the changer 100 to cause a temporary strip (S) to be struck. Can be prevented.

Therefore, according to the present invention, when the table roll fails to drive, it can be replaced immediately by an automated method from the method of performing manual replacement repair work after stopping production, and when cutting the strip by using a cutter, the shape of the front and rear ends of the strip It can additionally prevent plate overlapping.

The present invention has been described with reference to an embodiment shown in the accompanying drawings, but this is only exemplary, and those of ordinary skill in the art can recognize that various modifications and other equivalent embodiments are possible therefrom. You can understand. Therefore, the true scope of the present invention should be determined only by the appended claims.

100: replacer 110: replacement table block
111: table roll 112: power unit
113: fastening extension 120: replacement means
121: cylinder rod 130: wheel
131: sprocket 140: drag chain
150: wheel rail 151: chain rail
160: sensing unit 161: sensor
162: location bar 170: fixing part
171: position fixing bar 172: fixing means
173: fixing member 200: straightener
210: upper calibration unit 211: upper duct
212: bellows 213: swing arm
214: cable 215: movable means
220: lower calibration unit 221: lower duct
222: extension duct 300: control unit

Claims (10)

In the table roll replacement device for replacing the table block provided with the table roll for transporting the strip,
A changer that replaces any one table block provided on the strip transfer line with another table block arranged side by side on its side using a replacement means;
A straightener provided on the strip transfer line to stably transfer the strip; And
Includes; a control unit that controls whether the replacement means or the corrector is operated,
The straightener table roll replacement device including an upper straightening part and a lower straightening part for injecting or sucking fluid from above and below the strip. The method of claim 1,
The table block is
Table roll replacement device including anti-skid sprockets that move along a fixedly installed chain rail. The method of claim 2,
The table block is
Table roll replacement device further comprising a wheel supporting the load and rotating together with the sprocket. The method of claim 1,
The table block is
Table roll replacement device further comprising a drag chain provided to smoothly supply power or hydraulic pressure even when the position is moved. The method of claim 1,
The replacer
A location bar provided on the table block; And
Including; a sensor for measuring the moving distance of the table block by sensing the position bar,
The control unit is a table roll replacement device for controlling whether or not the replacement means is operated with information measured by the sensor. The method of claim 1,
The replacer
A fixing member fixedly installed on the ground; And
A fixing means provided on the table block and fastened to the fixing member during operation to limit the movement of the table block; and
The control unit is a table roll replacement device that controls whether or not the fixing means is operated with information measured by a sensor. delete The method of claim 1,
The upper calibration unit
An upper duct rotatable about the swing arm from the upper side of the strip; And
Including; movable means connected to the upper duct,
A table roll replacement device for operating the movable means during operation so that the outlet of the upper duct is positioned at a predetermined interval above the strip. The method of claim 1,
The lower correction unit
It includes a lower duct provided at a predetermined distance apart from the lower side of the strip,
Table roll replacement device for attaching the strip to the table roll by sucking fluid toward the lower duct during operation. The method of claim 1,
The control unit normally discharges air from the upper calibration unit and sucks air from the lower calibration unit to help a stable mail plate by bringing the strip into close contact with the table roll
When replacing the table block, the upper correction unit suctions air and the lower correction unit discharges air to prevent the strip from being hit by a load.

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