KR100423872B1 - Device for amending top grip of hot coil - Google Patents

Abstract

According to the present invention, when the coil is drawn out of the recoiler mandrel and the bending operation is completed in the bending machine and moved to the next skid along the working beam to stop, the steel roll is inserted into the coil and rotated so that the grip part is straightened. The present invention provides a coil internal diameter grip part correction apparatus.

Accordingly, the present invention is to enter the coil to rotate along the inner diameter of the coil to straighten the grip portion, and the coil is located on the coil seated on the skid and moved along the rail installed in the longitudinal direction of the coil to correct the inside of the coil Provided is a coil inner diameter grip part calibration device consisting of an insertion portion for entering the furnace, and a lifting portion for raising and lowering the correction portion relative to the insertion portion to match the position of the correction portion with the center of the inner diameter of the coil.

Description

Device for amending top grip of hot coil}

The present invention relates to an inner diameter grip portion of the coil produced through each detailed process of the rolling mill, that is, a coil inner diameter grip portion correction device for straightening the grip portion generated during the mandrel mounting process.

In general, a strip that is subjected to an annealing pickling process or the like in the production of a stainless steel hot rolled coil is wound on a mandrel, wound, and then transferred to a next step in a coil form or shipped as a finished product.

Here, in order to fix the initial strip end to the mandrel, the strip must be inserted into the gripper of the mandrel, where the strip end is inserted into the gripper and bent at right angles while winding, and this part remains bent at right angles even after the coil is drawn out. do.

If the bent grip part remains in this way, the inner circumferential ring, which is a packaging material, cannot be easily inserted into the coil, and the grip part bent at right angles interferes with the mandrel during the mandrel insertion process in the following process, thereby interfering with coil winding and the surface of the mandrel. Damage to the product.

Therefore, after the coil is drawn out, a calibration operation for straightening the grip portion of the coil inner diameter is performed. In the related art, a work was performed depending on manual labor.

That is, the operator is to straighten the coil tip grip portion bent at a right angle by hitting the inner diameter grip portion of the coil using a hammer.

However, the conventional structure is a structure that depends entirely on the manpower of the worker, there is a problem that takes a lot of work time and high risk of safety accidents at work.

Accordingly, the present invention has been made in order to solve the above problems, when the coil is drawn out of the recoiler mandrel and the bending operation is completed in the bending machine and moved to the next skid along the walking beam to stop, the steel roll inside the coil It is an object of the present invention to provide a coil inner diameter grip portion correcting device that allows the grip portion to be straightened by inserting and rotating it.

1 is a perspective view showing a coil inner diameter grip portion correction apparatus according to the present invention,

Figure 2 is a perspective view showing a state of use of the coil inner diameter grip portion correction apparatus according to the present invention.

Explanation of symbols on the main parts of the drawings

10: base frame 20: rack bar

22: moving plate 23: rotation axis

24, 26, 44: Pinion gear 25: driving motor

27: stopper member 28: guide roll

30,46,61.65: Detection piece

31,32,45,60,64: Sensor

40: case 41: vertical member

42: rack 43: drive motor

51: step motor 54: circular base

55: power cylinder 56: roll member

57: steel roll

The present invention for achieving the object as described above, the correction portion for entering the coil to rotate along the inner diameter of the coil to straighten the grip, and the rail mounted on the coil seated on the skid in the longitudinal direction of the coil And an insertion part for moving the straightening part into the coil, and a lifting part for raising and lowering the calibrating part relative to the insertion part to match the position of the calibrating part with the center of the inner diameter of the coil.

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

1 is a perspective view showing a coil inner diameter grip portion correction apparatus according to the present invention.

According to the above drawings, the present invention is installed on the skid is a banded coil stop, the insertion portion, the correction portion and the lifting portion is installed in the base frame 10 installed above the coil placed on the skid.

First, the insertion part of the present invention extends in the longitudinal direction of the coil on the base frame 10 and has a rack bar 20 having a rack 21 formed thereon, and a rack bar 20 positioned below the rack bar 20 and having a rack bar 20 above. The pinion gear 24 meshed with the rack 21 is connected to the movable plate 22 rotatably installed, the traveling motor 25 mounted on the movable plate 22, and the driving shaft of the traveling motor 25. It consists of a drive pinion gear 26 meshed with the rack of the rack bar 20.

Here, the rack bar 20 is composed of two, and the movable plate 22 sliding in close contact with the bottom of the rack bar 20, the driving motor 25 and the drive pinion gear 26 to the rack bar 20, respectively, facing The pinion gear 24 supporting the movable plate 22 is mounted on the left and right sides of the driving motor 25.

In order to reinforce the bearing force of the rotating shaft 23 on which the pinion gear is installed, the support shaft 29 of the rotating shaft 23 protrudes from the center of the movable plate 22 through the rack bar 20 to support the central portion of the rotating shaft 23. Done.

A stopper member 27 is installed at the front end of the rack bar 20 to prevent the moving plate 22 from being separated.

In addition, in order to detect the position of the movable plate 22, the base frame 10 and the stopper member 27, which are the center of the rack bar 20, respectively, the inner sensor 31 and the outer sensor 32 are installed On both sides of the movable plate 22, the sensing pieces 30 are installed at positions corresponding to the respective sensors 31 and 32.

Reference numeral 28 is a guide roll which is installed to be rotatable vertically on the moving plate 22 to be in close contact with the outer surface of the rack bar (20). Guide rolls 28 are installed on both sides of the driving motor 25 to prevent the moving plate 22 from flowing.

The elevating portion is vertically connected to the case 40 is installed vertically connected to the lower portion of the movable plate 22, the vertical member 41 is installed so as to be lowered into the case 40, the rack 42 is formed in a vertical direction on one surface , The drive motor 43 is fixed to the case 40 and is connected to the pinion gear 44 meshed with the rack 42 on the drive shaft.

Here, the rack 42 is formed on both sides of the vertical member 41 and the drive motor 43 is also installed on both sides of the case 40, respectively.

Accordingly, when the drive motor 43 is operated, the vertical member 41 having the rack 42 is moved up and down while the pinion gear 44 is rotated.

At the corresponding positions of the case 40 and the vertical member 41, the sensing sensor 45 and the sensing piece 46 are installed, respectively, so that the accurate rising position of the vertical member 41 can be detected.

On the other hand, looking at the calibration unit of the present invention, the step motor 51 is installed in the longitudinal direction of the rack bar 20 to the support bracket 50 installed in the lower rear of the vertical member 41, and connected to the drive shaft of the step motor 51 And radially supported along the outer circumferential surface of the circular base 54 and the circular base 54 which are rotatably supported by the bearing block 53 on the circular support member 52 installed in front of the vertical member 41 and protrude in the coil direction. The power cylinder 55 installed in the direction, the roll member 56 installed in the longitudinal direction of the coil at the end of the piston rod of the power cylinder 55 and the steel roll 57 rotatably mounted on the roll member 56. Is made of.

The drive shaft of the step motor 51 and the circular base 54 are connected and supported by the coupling 58 and the bearing block 59 in the vertical member 41, and are mounted on the circular support member 52. ), Two rotational sensing sensors 60 are installed at intervals of about 100 °, and a circular base 54 is provided with a sensing piece 61 sensed by the sensor 60.

The guide holder 62 is installed at both sides of the power cylinder 55, and the guide member 63 is inserted into the guide holder 62 to support the roll member 56.

Here, four steel rolls 57 connected to the power cylinder 55 are installed at intervals of 90 ° along the outer circumferential surface of the circular base 54, and each guide holder 62 has one side and a roll member 56 at its tip. The sensor 64 and the sensing piece 65 is installed to detect the rising and falling of the steel roll 57.

In addition, the light receiving sensor 66 and the light emitting sensor (not shown) are installed at the ends of both circular bases 54 so that the circular bases 54 can be accurately placed at the coil insertion position.

Hereinafter, the operation of the present invention will be described based on the continuous process by the sensor.

The finished coil 150 is transferred to a skid on which the calibration device of the present invention is installed, as shown in FIG.

When the coil 150 is seated in the correct position, the operator operates the drive motor 43 installed in the case 40 by operating a switch such as a control panel to lower the vertical member 41.

That is, when the drive motor 43 is operated, the rack 42 engaged with the pinion gear 44 is moved while the pinion gear 44 installed on the drive shaft is rotated to move the vertical member (the rack 42 is installed). 41 is sliding in the case 40 is to be lowered down along both sides of the coil 150.

As the vertical member 41 descends to the side of the coil 150, the circular base 54 installed in the vertical member 41 moves toward the center hole of the coil 150. As the vertical member 41 continues to move, the coil ( The light emitting sensor light of the circular base 54 blocked by the 150 is emitted to the light receiving sensor of the circular base 54 on the opposite side through the central hole of the coil 150, so that the light receiving sensor 66 detects the light. If the predetermined time elapses, the driving motor 43 stops operating.

From the light detection of the light receiving sensor 66 to the stop time of the driving motor 43, the ascending and descending speed of the vertical member 41 by the driving motor 43 is calculated and set in advance. Thus, the driving motor 43 is When it stops, the axis center of the circular base 54 is exactly in the center of the center hole of the coil 150 is inserted into the state.

When the drive motor 43 is stopped, the step motor 51 installed in the movable plate 22 is operated to engage with the drive pinion gear 26 and the drive pinion gear 26 installed on the drive motor 25. The movable plate 22 is moved inward along the rack bar 20 by the rack 21.

Therefore, the circular base 54 installed in the vertical member 41 is moved in accordance with the movement of the movable plate 22 to be inserted into the central hole of the coil 150.

At this time, when the outer diameter of the coil 150 is sensed by the sensing sensor 70 installed under the moving plate 22, the operation of the driving motor 25 is stopped and the circular base 54 is inserted into the coil 150. It becomes a state.

In addition, the power cylinder 55 installed on the circular base 54 is extended and operated at the same time according to the signal of the sensor 70, and the step motor 51 installed on the vertical member 41 is operated.

As the power cylinder 55 extends and moves, the roll member 56 installed in the power cylinder 55 moves toward the inner diameter of the coil 150, so that the steel roll 57 installed in the roll member 56 is coiled ( 150) close to the inner diameter.

In this state, the circular base 54 rotates according to the operation of the step motor 51, and the operating range of the step motor 51 is about the range of the detection sensor 60 installed in the bearing block 53. It will reciprocate between 100 °.

That is, when the step motor 51 is operated while the steel roll 57 is in close contact with the inner diameter of the coil 150, the sensing piece 61 provided with the circular base 54 is installed in the bearing block 53. When it is detected by the detection sensor 60, the reverse, and when the detection piece 61 is detected by the other detection sensor 60, the step motor 51 is moved forward again to reciprocate the circular base 54. will be.

Therefore, the steel roll 57 in close contact with the inner surface of the coil 150 presses the grip part bent at a right angle to the tip of the coil 150 while moving along the inner diameter of the coil 150 to straighten it out.

On the other hand, the step motor 51 repeats the forward and reverse rotation three times, and stops. When a predetermined time has elapsed after the motor 51 stops, the power cylinder 55 is reduced to operate the steel roll 57 to the coil 150. When the sensor cylinder 65 is separated from the outer diameter and the power cylinder 55 is completely reduced and the sensing piece 65 installed in the roll member 56 is detected by the sensing sensor 64 installed in the guide holder 62, the moving plate 22 is moved to the moving plate 22. As the installed driving motor 25 is driven to move the movable plate 22 to the front end of the rack bar 20, the circular base 54 inserted in the coil 150 exits the coil 150.

When the circular base 54 is completely out of the coil 150, the sensing piece 30 installed on the moving plate 22 is detected by the sensing sensor 32 installed on the stopper member 27. In response to the signal of 32, the driving motor 43 installed in the case 40 is operated to elevate the vertical member 41, in which the circular base 54 is installed, into the case 40 to prepare for the next work. do.

As described above, according to the coil internal diameter grip part calibrating apparatus according to the present invention, since the grip part of the coil internal diameter is mechanically calibrated, the calibration work can be easily performed quickly and the time and effort can be reduced, and the process flow There is an effect that can be maintained smoothly.

Claims (1)

The mobile bar is installed on the upper side of the base frame, and the rack bar is extended in the longitudinal direction of the coil and the rack is formed on the upper side, and the pinion gear which is positioned below the rack bar and engaged with the rack of the rack bar on the upper side is rotatably installed. A driving motor and an insertion portion made of a drive pinion gear connected to the drive shaft of the driving motor and engaged with the rack of the rack bar; The case is installed vertically connected to the lower portion of the movable plate, the vertical member is installed to be able to move up and down inside the case, the vertical member is formed in the vertical direction on one surface, the drive is fixed to the case and the pinion gear is fitted to the rack to the drive shaft Lifting unit consisting of a motor; Step motor installed in the longitudinal direction of the rack bar on the support bracket installed in the lower rear of the vertical member, and the circular support member connected to the drive shaft of the step motor and installed in front of the vertical member is rotatably supported by the bearing block in the coil direction. A protruding circular base, a power cylinder installed radially along the outer circumferential surface of the circular base, a correction member including a roll member installed in the longitudinal direction of the coil at the end of the piston rod of the power cylinder and a steel roll rotatably mounted on the roll member; Including the inside of the coil to rotate along the coil inner diameter to straighten the grip portion coil internal diameter grip portion correction device.