KR100398374B1 - Device for correcting the inlet position of strip to the vertical annealing furnace - Google Patents

Abstract

The present invention is to improve the vertical position to prevent the equipment accident, to prevent the deterioration of the quality of the strip, and to prevent the safety accident of the operator by automatically correcting the inlet position before the strip hits the entrance of the vertical path to one side It relates to a strip insertion position correction device.

The present invention provides a device for correcting the insertion of the strip into one side of the vertical in the vertical annealing furnace for annealing the stainless cold rolled strip, comprising: a base located at the lower side of the inlet of the vertical furnace; A movable table mounted to be movable in the width direction of the strip at an upper side of the base to redirect the strip; An automatic center adjustment mechanism mounted between the base and the moving table to guide the strip to the center when the strip is pulled to one side; A driving cylinder configured to move the movable table from side to side with respect to the base; A position detection sensor mounted at an inlet side of the vertical furnace and transmitting an electrical signal when the strip is biased to one side; And a controller configured to operate the driving cylinder based on an electrical signal of the position detection sensor and to adjust a moving table to move the center of the strip in the width direction to correct the strip. Provide the device.

Description

Device for correcting the inlet position of strip to the vertical annealing furnace}

The present invention relates to a device for preventing the strip from being inserted into one side in the vertical furnace in a vertical annealing furnace for annealing a stainless cold rolled strip, and more specifically, the strip is biased to one side and hit the inlet of the vertical furnace An apparatus for straightening strip entry position improved to prevent equipment accidents, to prevent deterioration of a strip, and to prevent a safety accident of an operator by automatically correcting the insertion position before it is finished.

Generally, as shown in FIG. 1, the stainless cold rolled strip S has a heating table 210 and a cooling table 220 therein, and passes through a vertical furnace 200 for annealing the strip S. As shown in FIG. In this work process, the strip S in the vertical furnace 200 is heated to approximately 1000 to 1300 ° C., so that the strip at the inlet of the vertical furnace 200 is minimized in order to minimize the tension applied to the strip S in each roll 230. (S) is to enter into the vertical furnace 200 by hanging in a somewhat stretched state to the bottom.

Therefore, the process of drawing the strip S into the vertical furnace 200 in this way is difficult to steer (steering) operation of the strip S by the roll 230, the alarm device 240 as shown in Figure 2 Was used to adjust the in-feed of the strip (S).

That is, in the prior art strip (S) retracted position adjustment method is mounted to the proximity sensor 260 on both sides of the inlet 250 of the vertical path 200 so that the strip (S) to any one of the proximity sensor 260. When biased, by electrically connecting the alarm light 240 connected to the proximity sensor 260 to operate, when the alarm light 240 is operated, the operator pushes the strip S in progress toward one side of the strip S. It was to keep the center.

However, in the conventional working method as described above, the proximity sensor 260 and the alarm lamp 240 not only have the function of adjusting the position of the strip S, but only inform the pull phenomenon of the strip S. Therefore, when the alarm lamp 240 is not acted quickly when it is activated, the strip (S) collides with the inlet 250 side of the vertical furnace 200, and the inlet 250 side of the vertical furnace 200. If scratched, the quality of the strip (S) is caused, if severely pulled to one side, the strip (S) was to cause a large accident that breaks or damages the equipment.

In addition, even if the operator pushes the strip S to correct the position of the strip (S), because the strip (S) is in the ascending risk of a safety accident even if a small mistake of the operator was very high, the strip (S) In order to calibrate the position of the operator, the operator should always be on standby.

The present invention is to solve the conventional problems as described above, the purpose is to prevent the equipment accident by automatically correcting the inlet position without the need for a separate operator before the strip is biased to one side and hit the inlet of the vertical path In order to prevent the deterioration of the strip, and to prevent the safety accident of the operator to improve the strip entry position correction device to the vertical.

1 is a block diagram illustrating a process in which a strip is introduced into a vertical furnace for annealing a stainless cold rolled strip;

2 is a perspective view showing a structure in which a strip is retracted into a vertical furnace according to the prior art;

Figure 3 is a perspective view of the entire strip inlet position correcting device in accordance with the present invention;

Figure 4 is an exploded view showing the strip insertion position correction apparatus in the vertical furnace according to the present invention;

5 is a block diagram of a strip position detection sensor equipped in the strip retracting position correcting apparatus in the vertical furnace according to the present invention;

Figure 6 is a block diagram showing an automatic center adjustment mechanism provided in the strip insertion position correction apparatus of the vertical furnace according to the present invention.

* Description of the symbols for the main parts of the drawings *

10 ..... Bass 20 ..... Mobile

22 ..... Turn roll 32 ..... Vertical roll

40 ..... Automatic centering mechanism 42 ..... Rail

50 ..... drive cylinder 60 ..... position detection sensor

80 .... controller 200 ... vertically

S ...... strip

In order to achieve the above object, the present invention, in the vertical annealing furnace for annealing the stainless cold rolled strip in the apparatus for correcting the insertion of the strip to the inside of the vertical furnace to one side,

A base located on the lower side of the inlet of the vertical furnace; A movable table mounted to be movable in the width direction of the strip at an upper side of the base to redirect the strip; An automatic center adjustment mechanism mounted between the base and the moving table to guide the strip to the center when the strip is pulled to one side; A driving cylinder configured to move the movable table from side to side with respect to the base; A position detection sensor mounted at an inlet side of the vertical furnace and transmitting an electrical signal when the strip is biased to one side; And a controller configured to operate the driving cylinder based on an electric signal of the position detection sensor, and to adjust the position of the moving table to move the center of the strip in the width direction and to correct it. By the provision of a strip insertion position corrector.

Hereinafter, the present invention will be described in more detail with reference to the drawings.

Strip inlet position correction device 1 of the vertical furnace according to the present invention, in the annealing vertical furnace 200 for annealing the stainless cold rolled strip (S), the strip (S) to the one side to the inside of the vertical furnace (200) It is a device for correcting the insertion into the.

3 and 4, the base 10 having a base 10 located below the inlet 250 of the vertical path 200, the base 10 is anchor bolt (not shown) on the ground The upper side of the base 10 is mounted so as to be movable in the width direction of the strip S, and has a movable table 20 for redirecting the strip S. The movable table 20 is mounted so that the turning roll 22 of the strip S is rotatable through the bearing block 24 at the center of the upper surface thereof, and the wheels are formed at four corners at the lower side of the movable table 20. 26 are mounted, and the wheels 26 are respectively coupled to the rails 42 of the automatic center adjustment mechanism 40 which will be described later.

In addition, a vertical stand 28 is formed on one side of the movable stand 20, and both sides of the strip S are vertical at the downstream side of the direction change roll 22 at an end of the vertical stand 28. A plurality of idle rollers 30 for guiding to the center in the direction is arranged up and down in a row in a plurality of rows on both sides of the strip (S), the front side of the movable table 20 can be idle in both sides of the strip (S) and upright One plurality of vertical rollers 32 are arranged upright on both sides of the strip (S).

And, the bar is mounted between the base 10 and the movable table 20 and has an automatic center adjusting mechanism 40 which guides the strip S to the center when the strip S is pulled to one side, the automatic center adjusting mechanism 40. The inclined rails 42 are respectively provided at the upper side corners of the base 10, and the wheels 26 of the movable table 20 are mounted on the inclined rails 42. As shown in FIG. 6, the inclined rails 42 have a predetermined inclination toward the center line P in the direction in which the strip S travels, and a rail adjacent to the center line P in the direction in which the strip S travels. The height of the rail edge l2 on the side farther than the edge portion l1 is set.

Therefore, the automatic center adjustment mechanism 40 is configured such that the movable table 20 is aligned with the strip traveling centerline P on the base 10 by the weight of the movable table 20.

In addition, it has a drive cylinder 50 to move the movable table 20 to the left and right with respect to the base 10, the drive cylinder 50 has a body 52 of the base 10 The rod 54 fixed to the upper side and wanderable as a hydraulic force in the body 52 is fixed to one side of the movable table 20, and thus, the movable table 20 is operated by the operation of the drive cylinder 50. 10) is configured to move from side to side on.

On the other hand, it is mounted on the inlet 250 side of the vertical furnace 200 has a position detection sensor 60 for transmitting an electrical signal when the strip (S) is biased to one side, the position detection sensor 60 is shown in FIG. As shown in detail in FIG. 5, the position of the strip S is detected at the inlet 250 side of the vertical furnace 200 and the signal is transmitted. The position detection sensor 60 has a pair of A-shaped guides 62 formed to cross the direction in which the strip S travels, and the moving plate 64 is inserted into the guides 62 so as to be movable. The movable plate 64 is provided with sensor elements 65a, 65a ', 65b, 65b', 65c and 65c 'arranged in pairs on each side of the strip S, respectively, The sensor elements 65a, 65a ', 65b, 65b', 65c and 65c 'each have a light emitter 67a and a light receiver 67b. In addition, the moving plate 64 is provided with an indicator needle 69a, and the guide sphere 62 is provided with a scale 69b corresponding to the indicator needle 69a, thereby moving the plate on the guide sphere 62. The displacement in the horizontal direction of 64 can be known from the outside, and the position of the movable plate 64 with respect to the guide sphere 62 is adjusted.

In addition, the position detection sensor 60 is each sensor element (65a) (65a ') (65b) (65b')

65c and 65c 'project light from the light projector 67a, and when the light receiver 67b detects the reflected light, it transmits an electrical signal to the controller 80, where the traveling position of the strip S is applied. A pair of first sensor elements 65a and 65a 'adjacent to each other, a pair of second sensor elements 65b and 65b' positioned on both sides thereof, and a third sensor element 65c and 65c respectively positioned on both sides thereof. Have pairs

On the other hand, the drive cylinder 50 is operated based on the electrical signal of the position detection sensor 60, and the moving stage 20 is adjusted to move the center of the strip S in the width direction to correct it. With a controller 80, the controller 80 is electrically connected to the position detection sensor 60, and electrically to operate the hydraulic system 59 for operating the drive cylinder 50 in a preset manner. It has a configuration to be connected.

When the strip inlet position correction device 1 of the vertical furnace according to the present invention configured as described above is stripped to one side from the center line P in the advancing direction, it is a vertical roller mounted on the movable table 20. (32) and the idle rollers (30) to guide so as not to deviate significantly from the center line (P) of the strip (S). However, if the strip S is severely biased to one side and the movable table 20 is moved to one side, that is, the movable table 20 is moved to the right as shown in FIG. Due to the movement of the position of the movable table 20, the contact force of the strip (S) in contact with the turning roll 22 is automatically different. That is, as can be seen in Figure 6, the wheel 26 of the movable table 20 is moved to the right on the rail 42 of the automatic center adjustment mechanism 40, so that the turning roll 22 of the movable table 20 This state is maintained slightly higher to the right than the left, so that the contact force of the portion where the strip S and the turning roll 22 contact is relatively larger than the left portion Sa is greater than the right portion Sb.

Therefore, since the strip S is to be moved to the left part with a large contact force while the strip S is in progress, the strip S is gradually returned to the left side, and at the same time, the movable table 20 also has the wheel 26 It is returned to the home position on the rail 42.

However, unlike the above, when the strip S is excessively biased to one side and is biased to one side without the position adjustment by the above-described automatic centering mechanism 40, the strip S is vertically ( The first sensor element (65a) (65a ') of the pair of the first sensor element (65a, 65a') located on the inlet 250 side of 200 proceeds to the upper side, in this case, One transmits an electrical signal to the controller 80.

In this case, the controller 80 transmits an electrical signal to the hydraulic system 59 for operating the drive cylinder 50 to operate the drive cylinder 50 to move the movable table 20 with respect to the base 10. By moving left and right by the hydraulic force to move the position of the movable table 20 on the base 10, the strip (S) to move toward the opposite side to the direction in which the one side is directed.

On the other hand, if the strip S is detected by the opposite sensor element of the first sensor element 65a, 65a 'pair again while moving in the opposite direction to the above due to the position adjustment of the movable table 20 as described above, As described above, the controller 80 operates the hydraulic cylinder 50 and positions the movable table 20 in a direction opposite to the above, and the strip is formed by any one of the pair of first sensor elements 65a, 65a '. The positioning operation is continued so that S is not detected, and if the strip S is not detected by the first pair of sensor elements 65a and 65a ', the operation of the driving cylinder 50 is immediately stopped. Therefore, the strip S is prevented from being excessively oriented to one side at the inlet 250 of the vertical path 200.

However, if the strip S is detected in one of the pairs of the second sensor elements 65b and 65b 'beyond the first pair of sensor elements 65a and 65a', the tilting of the strip S is relative. Since the electrical signal of the pair of second sensor elements 65b and 65b 'transmits an alarm sound in the workplace through the controller 80. Therefore, the operator can check the progress of the strip S, and if the progress of the strip S is not improved, manually stop the line to adjust the position of the strip S or take preventive measures in advance. do.

In addition, when the strip S is detected in any one of the pairs of the third sensor elements 65c and 65c 'due to the extremely poor progress of the strip S, it transmits an electrical signal to the controller 80. The controller 80 automatically stops the strip S traveling line. When the strip S is detected by the pair of third sensor elements 65c and 65c ', the strip S comes in contact with the inlet 250 of the vertical path 200 and breaks the equipment or the strip S. The controller 80, which received the electrical signal from the third sensor element 65c (65c ') pair, immediately stops the strip (S) progress line because it is a dangerous situation that may cause equipment accidents such as breakage. It is to prevent equipment accidents. In this case, since the strip S is detected by the pair of second sensor elements 65b and 65b ', an alarm sound is sent to the workplace, and workers are provided to the pair of third sensor elements 65c and 65c'. By the maintenance of the strip (S) progress line is stopped by the restart of the facility.

As described above, according to the present invention, before the strip (S) is biased to one side and hit the inlet 250 of the vertical furnace 200, a separate accident without the need for a separate operator automatically corrects the inlet position step by step the equipment accident It is possible to prevent and unmanned work, thereby improving work productivity. In addition, the breakage of the strip (S) is prevented to prevent deterioration, and since the operator does not need to directly adjust the strip (S), an improved effect is obtained to prevent a worker's safety accident.

Claims (3)

In the vertical annealing furnace for annealing the stainless cold rolled strip (S) in the apparatus for correcting the insertion of the strip (S) to one side to the inside of the vertical furnace (200), A base 10 positioned below the inlet 250 of the vertical furnace 200; A movable table 20 mounted to be movable in the width direction of the strip S at an upper side of the base 10 so as to redirect the strip S; It is mounted between the base 10 and the movable table 20, each of which has an inclined rail 42 in the upper side corners of the base 10, the inclined rail 42 is in the direction of the strip (S) travel direction The left and right sides are respectively inclined toward the center, but the height of the rail edge 12 on the far side is set higher than that of the rail edge 11 adjacent to the center line P in the strip S traveling direction. By moving the weight 20 on the base 10 to match the strip (S) progress center line (P) by the weight of the self), when the strip (S) is directed to one side, the automatic center adjustment mechanism (40) ; A driving cylinder (50) configured to move the movable table (20) from side to side with respect to the base (10); A position detection sensor 60 mounted at an inlet 250 side of the vertical furnace 200 to transmit an electrical signal when the strip S is biased to one side; And operating the drive cylinder 50 based on the electrical signal of the position detection sensor 60, and adjusting the movable stage 20 to move the center of the strip S in the width direction to correct it. Strip retracting position correcting apparatus including a controller (80). According to claim 1, The movable table 20 is mounted so that the turning roll 22 of the strip (S) in the center of the upper surface so as to be rotatable through the bearing block 24, the lower side of the wheel ( 26 is mounted, a vertical stand 28 is formed on one side of the movable stand 20, the strip (S) at the downstream side of the direction change roll 22 at the end of the vertical stand 28 A plurality of idle rollers 30 for guiding both sides of the vertical direction in the center of the vertical direction are arranged in a plurality of rows on both sides of the strip (S), the front side of the movable table 20 at both sides of the strip (S) A plurality of vertical rollers vertically rotatable and upright 32, characterized in that configured to be arranged upright on both sides of the strip (S) strip entry position correcting device. 2. The position detecting sensor (60) according to claim 1, wherein the position detecting sensor (60) includes a pair of first sensor elements (65a) (65a ') close to the traveling position of the strip (S), and second sensor elements (65b) respectively positioned at both sides thereof. (65b ') pairs and third sensor elements (65c) and (65c') pairs respectively positioned on both sides thereof, the first sensor elements (65a) and (65a ') pairs are operated by the driving cylinder (50). The second sensor is electrically connected to the controller 80 to move the position of the movable table 20 on the base 10 by hydraulic force by moving the movable table 20 to the left and right with respect to the base 10. The pair of elements 65b and 65b 'sends an alarm sound in the workplace via the controller 80, and the third pair of sensor elements 65c and 65c' automatically stops the strip S traveling line. Strip insertion position correcting device in the vertical direction characterized in that it is electrically connected to the controller (80).