KR20040015387A - An apparatus for adjusting the serpentine of strip in looper carriage - Google Patents

Abstract

PURPOSE: An apparatus for adjusting strip skewness of looper carriage is provided to prevent fracture of strip stored by sensing tension of operating chain for vertically moving carriage in which supporting rolls are installed and adjusting tension of the chain during there is something wrong with tension of the chain. CONSTITUTION: In an apparatus for adjusting skewness of strip stored as forming looper on strip supporting rolls installed in an upper carriage(110) vertically moved by operating chain(112) and a lower carriage fixed to a lower side of tower, the apparatus(1) for adjusting strip skewness of looper carriage comprises a base(10) installed at one side of the operating chain(112) on the upper carriage(110); a chain tension adjusting part(30) which is installed on the base(10) in such a manner that the chain tension adjusting part(30) is moved back and forth and equipped with an operating sprocket(32) clamped to the operating chain(112) to adjust tension of the operating chain(112); and a tension sensing means(50) installed at the chain tension adjusting part(30) to sense tension of the operating chain(112) by operating sprocket bracket(34) integrally moved during backward movement of the operating sprocket(32).

Description

AN APPARATUS FOR ADJUSTING THE SERPENTINE OF STRIP IN LOOPER CARRIAGE}

The present invention relates to a looper carriage of a looper tower for storing an extra portion of a steel sheet in a continuous process of a cold rolled steel sheet, and more specifically, to detect the steel sheet is stored, the operation for the vertical movement of the carriage installed with steel support rolls The looper carriage detects the tension of the chain and adjusts it when the tension of the chain is abnormal, and smoothly adjusts the meandering of the steel plate when the carriage moves up and down by the tension difference between the working chains to prevent the breakage of the stored steel sheet in advance. It relates to a steel sheet meander adjusting device.

Generally, in the continuous process of cold rolled steel sheet, various processes such as plating are performed while the steel sheet is continuously progressed. For continuous progress of the steel sheet, the wire and the rear end are continuously welded while unwinding the steel coil. In the case of continuous welding of the same steel plate, the preceding steel plate is continuously processed based on the welding machine. Therefore, the steel plate is continuously processed in front of the welding line of the steel plate for the disparity generated during welding. A looper tower is installed to smooth the looper, and such a looper tower is illustrated in FIG. 1.

That is, as shown in Figure 1, when the leading and trailing steel plate is welded to the rear end and the front end, the upper carriage 110 to move up and down to the operating chain 112 and the lower carriage 120 fixedly arranged to the lower side of the tower. Winding while moving to form a looper in each of the steel sheet support rolls (130) installed in the) will be stored in the looper tower (100).

At this time, the storage amount of the steel sheet (S) stored in the looper tower 100 can be adjusted, a total of four operating chains 112 supported by the upper carriage 110 is connected to the motor 114 and the reducer 116. And when the rotary drive as the sprockets 118 installed on the top, bottom of the tower 100, the upper carriage 110 is moved up and down, and eventually the support roll 130 in accordance with the vertical movement of the upper carriage 110 ) Is moved and the storage amount of the steel sheet wound between the upper and lower support rolls 130 is adjusted, the motor and the reducer are schematically shown in the drawings.

At this time, the operating chain 112 raises or lowers the upper carriage 110 which is connected and supported while being rotated forward and reverse when the motor 114 is repeatedly rotated forward, reverse, and the operation chain 112 is the upper carriage. It is connected to the 110 via the turnbuckle 112a, and the tension of the chain 112 is adjusted.

In addition, it is important that the upper carriage 110 moves while the upper carriages 110 at both sides maintain the same level when the upper carriage 110 moves in the up and down direction. While biased to one side, the level of the supporting rolls 130 horizontally installed on the two upper carriages 110 is incorrect, which is a meandering process of the steel sheet which is carried out while winding through the supporting rolls 130. (serpentine) is generated.

By the way, since the operating chain 112 that directly affects the level of the upper carriage 110 performs the vertical movement repeatedly for a long time, the wear of the chain is easily generated, which eventually loosens the chain 112, The tension of the 112 is different for each chain, resulting in meandering of the steel sheet due to the level unevenness of the upper carriage 110 described above.

Therefore, when the steel plate is slanted severely, the steel sheet may come into contact with the peripheral equipment such as chains, causing surface defects of the steel sheet or, in severe cases, causing a serious equipment accident that breaks the steel sheet, which in turn stops the operation of the roller tower. It delays the operation of the production line of cold rolled steel sheet.

Accordingly, the actuator 112 that determines the level of the roofer tower upper carriage 110 should be periodically checked and adjusted in tension. As shown in FIG. 2, the upper carriage 110 is conventionally used. After the stop position is 5m above the lower carriage 120, the operator directly climbs on the upper carriage 110 and checks the distance D of the chain 112 to be traversed by a tape measure 140, and also checks the spring balance ( 150) check the chain (112) moving distance (d) by pulling the scale 152 of the scale to 15kg.

Therefore, after checking the four working chains 112, the turnbuckles 112a were adjusted to adjust the distance D between the chains and the tension of the chains 112, but the chains 112 having a total length of 80 m were In reality, since the amount of wear is different for each length, the tension adjustment operation of the operation chain 112 cannot be effectively performed by the above-described manual operation, and various problems due to the meandering of the steel sheet described above when the worker is misworked or unchecked. There was a problem that occurred easily.

The present invention has been made in order to solve the various problems as described above, the object of the present invention is to continuously operate the operation chain of the upper carriage moving up and down in the roofer tower for the storage of the continuous steel sheet without the operator's manual work. By checking the tension, if there is a tension difference between the operating chains, the tension can be adjusted quickly by pressing only the operating chains with different tensions, keeping the level of the upper carriage constant and effectively adjusting the steel meander in the roofer tower online. An object of the present invention is to provide a steel sheet meandering device for a looper carriage.

In addition, another object of the present invention, by adjusting the tension of the operating chain on-line during the operation of the looper tower to prevent the meandering of the steel sheet in advance, thereby preventing the operation interruption caused by the shutdown of the equipment due to breakage of the steel sheet In order to improve the productivity of the cold rolled steel sheet, in particular, it is necessary to provide an apparatus for adjusting the meandering of the looper carriage, which does not require the manual labor of the operator, and therefore, there is no possibility of operator misoperation or safety accident.

1 is an overall configuration diagram showing a conventional looper carriage

Figure 2 is a working state showing the tension adjustment operation of the carriage operating chain in a conventional looper carriage

Figure 3 is an overall configuration showing a looper carriage installed with a steel sheet meander adjusting apparatus according to the present invention

Figure 4 is a front view showing a steel sheet meander adjustment device of the presenter looper carriage

Figure 5 is a perspective view of the main part showing the steel sheet meander adjustment apparatus of the presenter looper carriage

FIG. 6 is an exploded perspective view of FIG. 5 showing a steel sheet meandering device of the presenter looper carriage; FIG.

Figure 7 is a schematic plan view for explaining the tension detection operation of the carriage chain through the steel sheet meander adjustment device of the present invention looper carriage

Explanation of symbols on the main parts of the drawings

1 .... steel sheet turning adjuster 10 ... base

30 .... Chain tension adjuster 32 .... Operation sprocket

34 .... sprocket bracket 36 .... working rod

40 .... Driving means 42 .... Front and rear axes

44 .... drive motor 46 .... gearbox

48 ... PLG 50 .... tension sensing means

52 .... Spring 100 .... Lupper Tower

110,120 .... looper carriage 130 .... steel plate support roll

S ... steel sheet

As a technical configuration for achieving the above object, the present invention provides a meandering of the steel sheet stored while forming a looper on the steel sheet support rolls installed on the upper carriage and the lower carriage fixed to the lower side of the tower to move up and down the working chain. In the device for adjusting,

A base installed on one side of the operation chain on the upper carriage;

A chain tension adjusting unit which is installed on the base so as to be movable forward and rearward and has an operating sprocket fastened to the operating chain to adjust the tension of the operating chain; And,

And a tension sensing means equipped with the chain tension adjusting unit so as to sense the tension of the operating chain by the operating sprocket bracket which moves integrally at the time of the reverse movement of the operating sprocket.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 is an overall configuration diagram showing a looper carriage installed with a steel sheet meander adjusting apparatus according to the present invention, Figure 4 is a front view showing a steel sheet meander adjusting apparatus of the looper carriage of the present invention, Figure 5 is a steel sheet meander adjustment of the looper carriage Fig. 6 is an exploded perspective view of the steel sheet meander adjusting device of the looper carriage, and Fig. 7 is a perspective view illustrating the tension detection operation of the carriage chain through the steel sheet meandering device of the looper carriage. It is a schematic plan view, in which the same configuration as the conventional looper tower 100 is indicated by the same reference numeral.

3 and 4 show the overall configuration of the steel sheet meander adjusting device 1 of the looper carriage of the present invention, the apparatus 1 of the present invention is largely the base 10, the chain tension adjusting unit 30 and the chain It can be divided into the tension sensing means 50, these components 10, 30, 50 will be described in more detail as follows.

First, a looper tower in which the apparatus 1 of the present invention is installed, that is, a looper carriage 110 and 120, is illustrated in FIG. 3. The upper and lower carriages 110 and 120 provided with the steel plate supporting rolls 130 which are rolled up to have various loopers S are disposed, and the upper carriage 110 is provided as a motor 114 and a reducer 116. The operating chain 112 is coupled between the upper and lower sprockets 118 to be driven and rotated to be driven so that the operating chain 112 is orbitally transported between the sprockets 118 when the motor 114 is driven. The upper carriage 110 moves up and down, and as a result, the looper amount of the steel sheet S is increased by the amount of movement of the upper carriage 110, so that the total storage amount thereof is increased.

At this time, the upper carriage 110 is disposed on both sides in order to install the steel sheet support roll 130, the level of the support roll 130 when the level is changed while the pair of upper carriage 110 is moved. Since this is inclined to one side, the meandering of the steel sheet S, which proceeds through the end, is generated, and eventually, the level of the upper carriage 110 is related to the tension of the operating chain 112, 1) is a device for adjusting the meandering of the steel sheet by checking the tension of the operating chain 112 without the operator's manual work and adjusting the tension.

Next, FIGS. 3 and 4 show the base 10 of the steel sheet meander adjusting device 1 of the looper carriage of the present invention. The base 10 of the present invention is placed on the upper carriage 110. A total of four are installed on one side of the operating chain 112. As shown in FIG. 5, although not indicated by a separate sign, the base 10 of the present invention is a pair of vertical bars perpendicular to the upper carriage 10. And horizontally fixed on top of it.

4 to 6 illustrate the chain tension adjusting unit 30 of the apparatus 1 according to the present invention, the chain tension adjusting unit 30 of the present invention is provided on the base 10 before and after. It is installed to be movable, and provided with an actuating sprocket 32 fastened to the actuating chain 112 to adjust the tension of the actuating chain 112.

That is, as shown in FIGS. 5 and 6, the operating sprocket 32 of the chain tension adjusting unit 30 couples with the front and rear moving shaft 42 of the driving means 40 provided on the base 10. The actuating sprocket 32 is rotatably installed via a bearing 32b in an inverted c-shaped sprocket bracket 34 which is integrally fixed to the distal end of the actuating rod 36 connected as a ring 36a. The teeth are formed to be adjusted to ejaculate to engage the chain 112.

And, as shown in Figure 6 and 7, the bayung 32a for rotatable the operating sprocket 32 is mounted on a support shaft 32a horizontally fixed to the bracket 34, A fixed cap 32c is fixed to the outer side of the bearing 32b so that the operating sprocket 32 is idle when the chain is rotated in engagement with the operating chain 112 that enables the upper carriage 110 to move up and down. Done.

5 and 6, the actuating rod 36 for moving the actuating sprocket 32 forward and backward integrally with the bracket 34 is formed by the guide 12 installed on the base 10. The operating rod 36 and the bracket 34 and the operating sprocket 32 are connected to the sprocket bracket 34 at the inner side through the box 14 fixed to the inner side. ) Moves back and forth integrally.

That is, the drive means 40 has a worm gear box 46 connected to the drive motor 44 installed on the side of the base 10, the worm gear box 46 is connected to the front and rear moving shaft 42 When the motor rotates forward and backward, the front and rear moving shaft 42 moves the connected working rod 36 back and forth.

At this time, although the internal structure is not shown in detail in the drawing, the worm wheel 46 is connected to the drive shaft of the drive motor 44 is rotated in engagement with the drive shaft of the drive motor 44, the front and rear movement shaft 42 is connected The worm gear is disposed, and the driving rod 36 moves forward and backward integrally with the front and rear moving shaft 42 according to the forward and reverse rotation of the driving motor 44, and eventually, according to the movement of the operating rod 36. Since the actuating sprocket 32 on the bracket 34 is moved back and forth, the tension of the actuating chain 112 to which the actuating sprocket 32 is engaged is adjusted.

Meanwhile, as shown in FIG. 5, a PEL 48 is connected to the drive shaft 44a of the drive motor 44, and one end of the belt is fastened to the drive pulley 48b installed on the motor drive shaft 44a. The 48a is fastened to the pulley 48c of the plg 48 so that the driving amount of the motor drive shaft 44 is sensed by the plg 48.

6 and 7, the tension sensing means 50 of the device 1 of the present invention is shown. The tension sensing means 50 of the present invention is the back of the actuating rocket 32. The chain tension adjustment unit 30 is provided to detect the tension of the actuating chain 112 by the actuating sprocket bracket 32a.

That is, the tension detecting means 50 is interposed between the sprocket bracket 36 and a spring 52 elastically supported to absorb vibrations of the operating sprocket 32 on the operating rod 36 connected thereto. It is composed of a load cell disposed on the rod 36 to sense the tension of the chain when the operating sprocket 32 is retracted.

Referring to the operation of the present invention made in the above configuration in detail as follows.

As shown in FIGS. 3 to 7, the looper amount of the steel sheet is adjusted in a looper tower in which the steel sheet is stored in a looper form for the continuous progress of the steel sheet during the welding process during the continuous welding of the steel sheet in the cold rolling mill. The looper of the present invention adjusts the tension of the operating chain 112 for moving the upper carriage 110 up and down, and senses the amount of tension to effectively adjust the meandering of the steel sheet due to the level deviation between the upper carriages 110. Steel plate meandering device 1 of the carriage is as follows.

First, as shown in FIGS. 3 and 4, the steel sheet S continuously running in the looper tower 100 has a looper shape on support rolls 130 installed on the upper carriage 110 and the lower carriage 120. It is stored while being wound, and at this time, the steel sheet coil of about 1km is stored, the storage amount of which varies according to the vertical movement width of the upper carriage 110.

On the other hand, the cause of the meandering of the steel sheet (S) that proceeds in the roofer tower 100 as described above may meander when passing through the support roll 130 due to a thickness deviation in the width direction of the steel sheet or a shape defect at the edge, but the looper Most of the cause of the steel plate meander generated in the tower 100 is the level between the upper carriage 110 moving up and down than the fixed lower carriage 110 is not uniform level of the support roll 130 installed thereon Because.

However, such a level failure of the upper carriage 120 is because the tension degree according to the wear of the operating chain 112 for moving it up and down is not constant, so in the apparatus 1 of the present invention such an operating chain ( The meandering of the steel sheet S is adjusted by adjusting the tension of 112.

First, as illustrated in FIGS. 4 to 6, when the driving motor 44 of the driving means 40 installed on the base 10 is rotated forward or reverse, the worm gear box 44 to which the drive shaft 44a is connected is connected. The forward and backward movement shaft 42 of the () is integrally moved forward and backward, and eventually the operating rod 36 connected as the coupling 36a to the forward and backward movement shaft 42 is integrally moved forward and backward.

Therefore, the operating bracket 34 integrally fixed to the distal end of the operating rod 36 moves forward or backward through the box 14 inside the guide 12 installed on the base 10, and eventually the operating bracket The actuating sprocket 32, which is fastened via the bearing 32b on the support shaft 32a fixed to the 34, is moved forward or backward integrally so that the actuating sprocket 32 is moved up and down the upper carriage 110. The tension is adjusted by pressing or loosening the operating chain 112 to perform the movement.

That is, as shown in FIG. 4, when the operating chain 112 is loosened and the tension is less than that of the other operating chain, and the upper carriage 110 fixed thereto is inclined relative to the other side, the operating chain 112 is advanced. The operating sprocket 32 is to stably press the tension without being released from engagement.

Meanwhile, as illustrated in FIGS. 5 and 7, the operating rod 36 between the operating bracket 34 on which the operating sprocket 32 is installed and the box 14 passes through the operating rod 36. A load cell 50, which is a chain tension sensing means, is interposed, and a spring 52 is installed between the load cell 50 and the box 14.

Thus, as shown in FIG. 3, vibration generated when the operating chain 112 is traversed between the sprockets 118 by the driving of the lower motor 114 is absorbed by the spring 52, and if the initial If the tension is 5 at the four points where the actuating sprocket 32 and the chain 112 are in contact, when the tension, which is the actuator at one point, differs by more than 10% compared to the tension, which is the actuator at the other point, ie, 5.6 or more, The load cell 50 detects this and actuates the drive motor 44 on the base 10 of only the portion thereof to reverse the actuating bracket 34 integrally with the actuating rod 36 to tension the actuating chain 112. Adjust it to match the next point.

As a result, the device 1 of the present invention simply detects the tension of the chain 112 as the load cell 50 without the manual labor of the operator, and based on this, the operating sprocket 32 is moved forward or backward so that The tension is matched at four points, whereby the upper carriage 110 moves up and down without level deviation, so that the steel plate S always stably proceeds without meandering through the support roll 130 installed on the upper carriage 110. This effectively prevents fracture of the steel sheet due to meandering.

On the other hand, as shown in Figure 5, the apparatus 1 of the present invention is provided with a control panel (C) on the base 10, the amount of tension of the four points detected by the load cell 50 is the control panel ( C) and the main control unit (not shown) connected to the electric war to drive the drive motor 44 of the drive means 40 forward or reverse rotation, and also detects the drive amount of the motor as a Pelgi 48 The device 1 of the present invention is to effectively adjust the tension of the chain.

Thus, according to the steel sheet meander adjusting device of the looper carriage of the present invention, the operation chain of the upper carriage moving up and down in the roofer tower to check the tension continuously without the operator's manual work for the storage of the continuous steel sheet When the tension difference occurs, the tension can be adjusted quickly by pressing only the working chain with a difference in tension, thereby maintaining the level of the upper carriage constant, thereby effectively adjusting the plate meander in the roofer tower online.

Therefore, when the looper tower is operated, the tension of the operating chain can be quickly adjusted online to prevent meandering of the steel sheet, thereby preventing the operation interruption caused by the failure of the equipment due to the breaking of the steel sheet, thereby improving the productivity of the cold rolled steel sheet. On the other hand, there is no fear of causing a worker's misoperation or safety accidents in particular because no manual labor of the operator is to provide an excellent effect of improving the equipment operation rate.

While the invention has been shown and described with respect to specific embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the spirit or scope of the invention as set forth in the claims below. I would like to know that those who have knowledge of this can easily know.

Claims (4)

Adjusting the meandering of the steel sheet S stored while forming a looper on the steel sheet support rolls 130 installed on the upper carriage 110 and the lower carriage 120 fixedly arranged to the lower side of the tower to move up and down to the working chain (112). In the device (1) for A base 10 installed on one side of the operation chain 112 on the upper carriage 110; and, A chain tension adjusting unit (30) installed on the base (10) so as to be movable forward and backward and having an actuating sprocket (34) fastened to the actuating chain (112) to adjust the tension of the actuating chain (112); And, Tension sensing means (50) equipped with the chain tension adjusting unit (30) to sense the tension of the actuating chain (112) by the actuating sprocket bracket (32a) integrally moving when the actuating sprocket (32) moves backward. Steel sheet meandering device of the looper carriage, characterized in that configured The actuating sprocket 32 of the chain tension adjusting unit 30 of the actuating rod 36 connected to the front and rear moving shaft 42 of the driving means 40 installed on the base 10. Is installed rotatably through the bearing (32a) to the sprocket bracket 34 installed on the front end, The actuating rod 36 is connected to the sprocket bracket 34 at the inside thereof through a box 14 fixed to the inside of the guide 12 installed on the base 10 to move the driving means 42. When the moving rod before and after, the operating rod 36, the bracket 34 and the operating sprocket 32 is integrally moved back and forth, characterized in that the steel sheet meander adjustment device of the looper carriage According to claim 1, wherein the drive means 40 is provided with a worm gear box 46 connected to the drive motor 44 installed on the side of the base 10, the worm gear box 46 is the front and rear movement shaft ( 42 is connected to the forward and backward movement of the motor when the forward and backward rotation shaft 42 is configured to move the connected operating rod 36 back and forth, Steel plate meander adjusting device of the looper carriage, characterized in that the PEL 48 is connected to the drive shaft (44a) of the drive motor (44) According to claim 1 or 3, wherein the tension detecting means 50, the sprocket bracket 36 and the spring (elastically supported to absorb the vibration of the operating sprocket 32 to the operating rod 36 connected thereto) 52 is a load cell disposed on the operating rod 36 so as to be interposed between the steel plate meander adjusting device of the looper carriage, characterized in that for detecting the tension of the chain when the operating sprocket 32 is reversed