KR101082279B1 - Apparatus for correcting the end portion of cold rolled stainless steel strip - Google Patents

Abstract

The present invention relates to a strip tip correction pressure device for bending the strip of the saw portion cut by the shear at the time of the strip plate in a curved shape several times at a predetermined angle, a pair of reel and continuous annealing furnace input line A pressurizing part including an upper and a lower press mounted to press the leading end of the strip passing while being opposed to each other between the shears of the shears; And a controller including a control unit for controlling forward and backward of the strip unwound from the fairoff reel, and a control unit for controlling the leading end of the strip forward and backward to be paused at a preset position. And the risk of safety accidents can be reduced by contributing to the improvement of quality and eliminating the manual work of workers.

Strip, continuous annealing, shea, hydraulic press

Description

Apparatus for correcting the end portion of cold rolled stainless steel strip}

1 is a perspective view showing a conventional continuous annealing furnace input line,

Figure 2 is a perspective view showing the input line to the continuous annealing furnace equipped with a strip end pressure correction device according to the invention,

Figure 3 is a perspective view showing the deformation of the top portion of the strip curled downwards using the strip end pressure correction device according to the invention,

4a shows that the top of the strip is cut from the sheer and curled downward;

Figure 4b is a view showing that the top portion of the strip of Figure 4a is modified as a strip tip corrective pressure device according to the present invention,

Figure 5 is a perspective view showing the deformation of the top portion of the strip curled upwards using the strip tip correction pressure device according to the invention,

Figure 6a shows that the top of the strip is cut from the sheer and curled upwards,

Figure 6b is a view showing that the top portion of the strip of Figure 6a is modified as a strip tip corrective pressure device according to the present invention.                 

<Description of Symbols for Main Parts of Drawings>

1 ... calibration press device, 3 ... strip,

5 ... shea, 12 ... lower press,

13 ... upper press, 14 ... cylinder,

16 hydraulic press, 17 calibration hydraulic cylinder,

25 ... light-detection sensor, 27 ... reflective plate.

The present invention relates to a calibration pressurizing apparatus, and more particularly, to a straight end calibration pressurizing apparatus for smoothing the plate of the strip in the process of injecting the stainless cold rolled strip into the annealing line.

In general, the cold rolled coil in the process of producing the stainless cold rolled coil is put into the annealing line after mounting on the fair off reel. The unrolled portion of the introduced strip is cut in the sheer and the cut strip is welded for connection with the preceding strip.

Referring to FIG. 1, the unrolled portion of the strip 3 in the advancing direction of the strip 3 through the plate line 7 is cut in the shear 5. The unrolled strip 3 is connected by welding the leading and trailing strips. At this time, the plate for welding is difficult due to the distortion of the refractive index that the top portion of the strip 3 is curled in the upper direction or the lower direction due to the stress, and thus the strip 3 sheet plate has been induced by the operator's manual work. However, such work disturbances have affected the deterioration of the product quality and productivity due to the generation of line stops by continuous annealing of the strip 3 of the production line, and there has been a risk of safety accidents of workers by manual labor.

The present invention has been made in order to solve the conventional problems as described above, by bending the strip in the form of a curved curve several times at a predetermined angle of the distortion of the saw cut by the shear at the strip plate to the continuous annealing line The purpose of the present invention is to provide a calibrated pressurization device for a strip end part to reduce the risk of safety accidents by improving productivity and quality and eliminating the manual work of workers by smoothing the mailing.

In order to achieve the above object, the strip tip correcting pressure device according to the present invention includes an upper and a lower press mounted to press the tip of the strip passed while being located opposite to each other between the pair of reel and the shear of the continuous annealing inlet line. Pressurized portion; And a controller including a control device configured to control the progress of the strip unwound from the fairoff reel and the front end of the strip to be paused at a preset position.

In addition, the pressing portion further comprises a calibration press facing the one end of the upper press in order to correct the distorted distortion of the front side of the strip and is disposed in contact with the lower press to selectively operate according to the shape of the distortion distortion of the strip. It is characterized by.

In addition, the opposing surfaces of the upper and lower presses and the calibration press are characterized in that they are interlocked with each other while forming a continuous bend.

In addition, the control unit is mounted on one or more spot rolls in close contact with the strip in progress, PG (Pulse Generator) for detecting the progress direction and the length of the strip by measuring the rotation of the spot roll, and to detect the position of the front end of the strip Includes a light transmitting sensor and a reflecting plate installed to detect the transmission of light through the light transmission hole formed in the front end of the strip, and a position detecting sensor installed to detect the operating distance of the upper press, the PG, light transmitting sensor, position detection Characterized in that the data of the sensor is provided to the control device.

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

Referring to FIG. 2, the strip tip correcting pressure device 1 according to the present invention includes a pressurizing part including upper and lower presses 13 and 12 and a control device 28 for controlling the progress of the strip 3. Consisting of a control unit. The pressurizing portion includes a base 11 opened at the shear front end of the continuous annealing furnace input line, a lower press 12 supported by the base 11 and a strip 3 through the upper portion thereof, and a lower press 12. An upper press 13 installed to be pressurized to the upper side and a strip 3 through the bottom thereof, a cylinder 14 configured to moor the upper press 13 from the upper side and to allow movement to the upper side and the lower side; And a frame 15 configured to support the cylinder 14 from above.

In addition, at one side of the lower press 12 in the shear 5 direction, the hydraulic press 16 and the hydraulic press 16, which are pressed together with the upper press 12 when the upper press 12 is pressed downward, are upper side. And a corrective hydraulic cylinder 17 for enabling movement in the downward direction.

In the control unit, a plurality of spot rolls 31 and cylinders 33 are formed at the front end and the rear end of the strip front end pressure-adjusting device 1, respectively, to raise and lower the position of the strip 3 to be plated during the mailing process. The central axis of any one of the spot rolls 31 located at the front end is configured with a pulse generator (PG) 21 for sensing the length of the strip 3 that is plated by the rotation of the spot rolls 31. In addition, at the rear end side of the strip front end pressing device 1, a light transmitting light sensor 25 is configured to detect whether the strip 3 is mailed, and the light emitted from the light transmitting light sensor 25 is a mailing line. (7) The reflector 27 is comprised so that it may reflect through the hole 26 formed in the upper part. In addition, the outside of the cylinder 14 detects a piston (not shown) inside the cylinder 14 to detect the operating state of the upper press 13 moored to the cylinder 14, respectively, the upper and middle detection sensors 22, 23, and 24 are comprised. In addition, on one axis of the pair of reel (9) receives the data of the PG (21), the transmitted light sensor 25, the sensors 22, 23, 24 so that the leading end of the strip is paused at a predetermined position. The control apparatus 28 which controls is comprised.

The strip 3 wound in the form of a coil on the pair of reels 9 undergoes a mailing process to be introduced into the continuous annealing line. The unrolled portion of the strip 3 is cut in the sheer 5 during the sheeting process, and the distortion of the top portion of the strip 3 due to stress is generated. At this time, the control device 28 receives the cutting operation signal of the shear 5, and the fair off reel 9 rotates in reverse to advance the strip 3 in the reverse direction of the plate direction. When the reversed strip 3 is placed in a position suitable for calibration, the transmitted light detecting sensor 25 detecting the top of the strip 3 detects this and the control unit 28 receives this signal to release the pair off ( The operation of 9) is stopped, whereby the leading end of the strip 3 is paused at a preset position. Transmitted light sensor 25 is transmitted through the hole 26 formed in the upper part of the mailing line (7) is transmitted through the reflecting plate located below the hole 26, that is, the bottom surface inside the mailing line (7) The light reflected from the light source 27 is received to determine whether the top portion of the strip 3 is positioned on the hole 26 formed in the upper part of the plate line 7. When the strip 3 is paused, the cylinder 14 of the upper press 13 is lowered to compress the strip 3. The cylinder 14 is a hydraulic cylinder 14, and the position varies depending on the situation. If the sensor 22 of the upper position detects the piston of the cylinder 14, the upper press 13 is positioned at the home position, and if the sensor 23 of the intermediate position detects the piston of the cylinder 14, Press 13 is to lower the position by manual operation to correct the strip (3), if the lower position sensor 23 detects the piston of the cylinder 14, the upper press 13 is It is to detect that the pressing on the lower press 12.

3 to 6, when the fairing reel 9 is stopped and the reverse movement of the strip 3 is stopped, the calibration status of the strip is determined by the operator's confirmation.

When the top end of the strip 3 is curled in the downward direction, the hydraulic press 16 and the lower press 12 in which the orthodontic hydraulic cylinder 17 is lifted up and thereby rise are lowered in the upper press 13. Will be pressed together.                     

In this operation, the strip 3 with the top end shown in FIG. 4A curled downward forms a wavy shape as shown in FIG. 4B, and passes through the sheer 5 without the manual operation of the operator. ) And then welded to the continuous annealing furnace.

When the top end of the strip 3 is curled upward, the corrective hydraulic cylinder 17 is lowered, which causes the hydraulic press 16 to descend and the lower press 12 to lower the upper press 13 ) Will be compressed.

In this operation, the strip 3 with the top end shown in FIG. 5A curled upwards has a wavy shape as shown in FIG. 5B, and the sheath 5 passes through the sheer 5 without manual operation by the traveling strip 3. ) And then welded to the continuous annealing furnace.

The foregoing is merely illustrative of the preferred embodiments of the present invention and those skilled in the art to which the present invention pertains recognize that modifications and variations can be made to the present invention without departing from the spirit and gist of the invention as set forth in the appended claims. shall.

As described above, by the strip tip correction pressure device according to the present invention, the distortion of the saw portion cut by the shear at the time of the strip plate bending the strip in a curved shape several times at a predetermined angle to the continuous annealing line It can contribute to productivity and quality improvement by smoothing mailings, and can reduce the risk of safety accidents by eliminating the manual work of workers.

Claims (4)

A pressurizing part including an upper and a lower press mounted to press the front end of the strip passing while being opposed to each other between the pair of reel and the shear of the continuous annealing furnace input line; And And a controller including a control device for controlling forward and backward of the strip unwound from the fairoff reel, and a control device for controlling the leading end of the strip forward and backward to be paused at a preset position. The pressing portion further includes a calibration press disposed to be connected to the lower press while being opposed to one end of the upper press to correct the distorted deflection of the front end of the strip, and selectively operated according to the shape of the distortion deflection of the strip. Strip tip pressure correcting device. delete The method of claim 1, And opposing surfaces of the upper and lower presses and the calibration press are in a shape of being engaged with each other while forming a continuous bend. The method of claim 1, The control unit is mounted on one or more spot rolls that are in close contact with the traveling strip, and a pulse generator (PG) for detecting the direction and length of the strip by measuring the rotation of the spot roll, and the position of the front end of the strip to detect the position of the strip. A light transmission sensor and a reflection plate installed to detect the transmission of light in the light transmission hole formed in the front end, and a position detection sensor installed to detect the operating distance of the upper press, the PG, the light transmission sensor, the position detection sensor And a strip tip calibrating pressure device, characterized in that data is provided to the control device.

Images