KR20040020157A - Apparatus for combining and overhauling roll neck cover in dull machine - Google Patents

Abstract

PURPOSE: An apparatus for attaching and detaching roll neck cover of a cold rolling dull machine is provided to enable a work for attaching neck cover to neck of roll and detaching the neck cover from the neck of roll to be done by mechanical operation. CONSTITUTION: The apparatus comprises a neck cover(11) at one side of which an insertion space formed correspondingly to neck of roll (R) are formed with the insertion space being divided by a separation wall, at the other side of which a body housing is formed in such a way that a key groove is formed on the body housing, and in which an inserting element positioned at the body housing side is fixed to one side of a connection shaft passing through the separation wall, a magnet on/off control key positioned in the insertion space is fixed to the other side of the connection shaft, and a magnet plate having magnetism is fixed to an inner part of the insertion space according to whether the magnet on/off control key is rotated or not; change parts(100) comprising lowerable and liftable cylinders(5) installed on supports(3) respectively set up at both sides of work car(2), housings fixed to rod of the lowerable and liftable cylinders, and inner wheels(9) which are rotated inside the housings, and in which a neck cover insertion hole(10) is formed so that the neck cover is inserted into the neck cover insertion hole; and a forward and backward movement part(120) comprising a resting stand(15) fixed to a lower part of the housings, a screw(17) rotated by rotation motor(16) installed on the resting stand, a rod which passes through a rod housing(20) fixed to the resting stand, and which is moved forward and backward according to rotation of the screw, and a connector body which is fixed to an end of the rod, in which an insertion member is formed, and on the outer circumference of which a key is formed.

Description

Roll neck cover desorption device of DUUL MACHINE {APPARATUS FOR COMBINING AND OVERHAULING ROLL NECK COVER IN DULL MACHINE}

The present invention relates to an apparatus used in cold rolling, and more particularly, to a roll neck cover detachable device of a less machine for attaching and detaching a roll neck cover for protecting a roll neck portion.

In general, to form a workpiece, that is, after forming a steel sheet in a cold rolling line, the surface of the roll used for cold rolling needs to be roughened in order to smoothly coat the surface and produce a product having excellent paintability. The apparatus for processing the surface roughness of such a workpiece is called a DULL MACHINE.

In addition, grit (GRIT) is essentially used when processing the surface roughness of the workpiece, such grit is a fine grain of steel material and has various sizes, and in most cold rolling mills, there are three stages of large diameter, medium diameter, and small diameter. Divide the size.

In the process of cleaning the surface of the roll using the grit, the roll neck is covered with a cover to prevent the roll neck from being damaged by the grains of the grit.

In the case of conventional cold rolling, the work of attaching and detaching the cover to the roll neck is performed by the worker disassembling and assembling the neck cover to the roll neck part by hand, and tightening the fixing bolt to prevent the neck cover from being separated.

By the way, since the detachable work is performed by using the neck cover, which is a heavy material, by manual work, it takes a lot of work time, and there is a problem of less processing productivity due to work time delay.

In addition, there is a problem that not only the inefficiency of the equipment, but also increase the work fatigue of the operator because less machine equipment does not operate automatically.

The present invention has been proposed to solve the above problems, and to provide a roll neck cover detachable device of a cold rolling less machine facility that allows the operation of attaching and detaching the neck cover to the neck of the roll by mechanical operation.

1 is a perspective view showing a roll neck cover detachable device of a less machine according to the present invention.

Figure 2 is a cross-sectional view showing a roll neck cover detachable device of the less machine according to the present invention.

Figure 3 is a perspective view showing a partially cut neck cover coupling portion according to the present invention.

Figure 4 is an exploded perspective view showing a center level fitting of the detachable device according to the invention.

Explanation of symbols on the main parts of the drawings

R: Roll 2: Walk Car

8: housing 9: inner ring

10: neck cover insertion hole 11: neck cover

15: seating 17: screw

18: rod 24: fitting hole

30: fitting 31: magnet on off control key

32: magnet plate 42: roll touch bar

40: rotating shaft 44: brake plate

45: guide support 51: operation cylinder

In order to achieve the above technical problem, the detaching device of the present invention is a less machine for seating a roll on a rotting roller installed rotatably in a work car prior to roughening the surface of the roll, the apparatus being provided on the neck of the roll. Correspondingly formed insertion space is formed on one side with the separation wall therebetween, the other side is formed with a body housing formed with a key groove, the fitting piece located on the body housing side is fixed to one side of the connecting shaft through the separation wall A magnet cover on which the magnet on / off control key located in the insertion space is fixed to the other side of the connecting shaft, and a magnet plate having magnetic properties according to whether the magnet on / off control key is rotated is fixed inside the insertion space; With an inner ring formed with a lifting cylinder provided on each support stand on both sides of the work car, a housing fixed to the rod of the lifting cylinder, and a neck cover insertion hole which is rotatable inside the housing and inserts the neck cover. Change part made; And a rod fixed to a lower end of the housing, a screw rotated by a rotary motor installed on the seat, a rod passing through the rod housing fixed to the seat and moving forward and backward according to the rotation of the screw; It is fixed to the end of the rod and the fitting hole is formed therein and includes a forward and backward portion consisting of a connector body formed with a key on its outer periphery.

And erect a plurality of rod housings on the ground on which the work car is placed, the guide rods inserted in the plurality of rod housings are elastically supported, the celebration housings and connecting rods respectively fixed to the upper ends of the guide rods are interconnected, the celebration housings Both ends of the rotating shaft inserted into the projecting protruding to the opposite sides of the axial housing, the roll touch bar is fixed between the upper side of the support rod fixed to the both ends of the protruding rotating shaft, and re-protruded to the outside of the support rod A brake plate having a plurality of protrusions is fixed to both ends of the rotating shaft, and guide supports formed with a plurality of teeth to which the protrusions of the brake plate are selectively coupled are erected on the outside of the plurality of rod housings. The formed connecting rod is fixed, the work is fixed to the connecting rod in the hole of the connecting rod The rod of the copper cylinder is inserted and fixed, it is preferable to further include a center level alignment portion consisting of a limit touch bar corresponding to the limit switch installed on the seating rod and fixed to the end of the connecting rod.

In addition, the change part, a square groove on the upper side of the housing, a gear is formed on the outer circumferential surface of the inner ring so that the inner ring can be rotated by the rotation of the drive motor installed on the outside of the housing, the gear The rotating gear is fixed to the rotation shaft of the drive motor, the neck cover insertion hole is formed in the inner peripheral surface of the inner ring at intervals of 90 degrees.

In addition, in order for the rod to move forward and backward as the screw rotates, the guide groove is formed in the longitudinal direction of the rod housing, and the guide jaw corresponding thereto is preferably formed in the longitudinal direction on the outer side of the rod.

In addition, in order to insert the neck cover into the roll neck, it is preferable to install a limit switch in the housing, and fix a plurality of limit switch touch bars corresponding to the outer surface of the neck cover insertion opening.

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

1 is a perspective view showing a roll neck cover detachment device of a less machine according to the present invention, Figure 2 is a cross-sectional view showing a roll neck cover detachment device of a less machine according to the present invention.

The detachable device of the present invention operates when the work car 2 moving on the rail connected to the room 1 is positioned between the plurality of supports 3 by moving the roll R from the room 1. .

The work car 2 rotates the rotting roller 4 using a motor installed therein to rotate the roll R seated on the rotting roller 4.

The plurality of supports 3 are located on both sides of the work car 2 in the form of a bridge, and the detachable device of the present invention is provided on each of the plurality of supports 3.

The detachable device is equipped with a plurality of neck covers and various kinds of neck covers, which are lifted and lowered by the lifting cylinders 5 installed in the respective supporters 3, and replaced according to the roll type, the neck covers and the rolls ( R) Center level alignment portion 110 to match the center level between, the roll and neck cover both the front and rear portion 120 to move the neck cover back and forth while the center is aligned, and the neck cover on the roll when the neck cover is moved It includes a neck cover coupling portion 130 to be fixed.

Here, the change part 100 includes a housing 8 in which a plurality of rotary rollers 6 are disposed at the front and rear sides of the inner diameter thereof, and a drive motor 7 is installed outside the square groove machined on the upper one side thereof, and the housing 8. It is composed of an inner ring (9) inserted into the interior of the rotating roller (6) as a medium.

The change part 100 has a gear formed on the outer circumferential surface of the inner ring 9 so that the inner ring 9 can be rotated by the rotation of the drive motor 7, and the rotary gear engaged with the gear is the drive motor ( 7) is fixed to the rotating shaft.

And the inner cover surface of the inner ring (9) is formed with a neck cover insertion opening 10 at intervals of 90 degrees, while the neck cover 11 is inserted while being rotated and inserted into the roll neck 12 by the forward and backward portions described later.

In order to insert the neck cover 11 into the roll neck 12, the neck cover insertion hole 10 must be stopped at a predetermined position. For this purpose, the limit switch 13 is installed in the housing 8, and the corresponding limit is provided. The switch touch bar 14 is fixed to the outer surface of the neck cover insertion opening 10.

The front and rear revolving parts 120 include a screw 17 and a screw 17 that are rotated by a seat 15 fixed to a lower end of the housing 8, a rotation motor 16 installed on the seat 15. The rod 18 is moved forward and backward in accordance with the rotation of, and the support bracket 19 for supporting the rod 18.

The rotary motor 16 and the screw 17 is connected to the belt to transmit the rotational force.

In order for the rod 18 to move forward and backward as the screw 17 rotates, a rod housing 20 is formed in the support bracket 19, and a screw (center) of the rod 18 penetrates the rod housing 20. 17 is screwed, and the guide groove 21 is formed in the longitudinal direction of the rod housing 20, the guide jaw 22 corresponding thereto is formed in the longitudinal direction on the outside of the rod 18. As a result, when the screw 17 rotates in the forward and reverse directions, the screw 18 is moved forward and backward.

The neck cover coupling portion 130 is configured at the end of the rod 18 and the neck cover 11.

As shown in FIG. 3, the neck cover coupling portion 130 has a cylindrical connect body 23 formed at the end of the rod 18 and has a '-' shaped fitting hole in a direction perpendicular thereto. 24 is fixed, the key 25 is formed in the same direction as the fitting hole 24 on the outside of the connect body (23).

On the other hand, the outer side of the neck cover 11 is formed with a body housing 27 is formed with a key groove 26 corresponding to the key 25, both ends of the body housing 27 and the inner side of the neck cover 11 The connecting shaft 28 located therethrough penetrates the separating wall 29 of the neck cover 11.

The penetrating connection shaft 28 has a fitting piece 30 corresponding to the fitting hole 24 fixed at one end of the body housing side, and a magnet on-off control key 31 fixed at the other end of the neck cover side. The magnet plate 32 is rotatably disposed on the outer circumference of the magnet on / off adjustment key 31. In addition, a sensor 33 for detecting the magnetic presence of the magnet plate 32 is installed inside the neck cover 11 while being connected to a control unit to be described later.

As shown in FIG. 4, the center level fitting part 110 is configured on the base 34 to adjust the center level between the neck cover 11 and the roll R. As shown in FIG.

The center level fitting 110 erects a plurality of rod housings 35 on the base 34 and inserts the guide rods 36 into the plurality of rod housings 35. The guide rods 36 are fixed to the interconnected shaft housing 37 and the connecting rod 38, respectively. A spring 39 is disposed between the celebratory housing 37 and the two rod housings 35 to elastically support the celebratory housing 37.

The shaft housing 37 has a rotation shaft 40 inserted therein, and both ends of the rotation shaft 40 protrude to opposite sides of the celebration housing 37. Support rods 41 are fixed to both ends of the protruding rotation shaft 40, and the roll touch bar 42 is fixed between the upper sides of the two support rods 41. A brake plate 44 having a plurality of protrusions 43 is fixed to both ends of the rotation shaft 40 protruding outward of the support rod 41.

The guide support 45 to which the protrusion 43 of the brake plate 44 is selectively coupled is erected outside the plurality of rod housings 35. A plurality of teeth 46 corresponding to the protrusion 43 of the brake plate 44 is formed at the side of the guide support 45.

The connecting rod 47 having the long hole 47a is fixed to the middle portion of the rotating shaft 40, and the rod of the operation cylinder to be described later is inserted and fixed to the long hole 47a of the connecting rod 47.

On the other hand, the connecting table 38 is fixed to one side of the celebration housing 37. The mounting jaw 38a is formed downward at the end of the connecting table 38, and the guide rod 36 is fixed to the lower surface of the mounting jaw 38a.

Then, a plurality of fixing brackets 48 are erected on the upper surface of the seating jaw 38a of the connecting table 38, and the limit touch bar 49 is fixed to the plurality of fixing brackets 48 with fixing bolts. The limit switch 50 corresponding to this limit touch bar 49 is provided in the lower surface of the mounting base 15 mentioned above. And the operation cylinder 51 described above is fixed to the lower surface of the connecting table 38.

The control unit 140 includes all the limit switches 13 and 50, the sensor 33, the cylinders 5 and 51, the work car 2, the motor for rotating the rotating roller 4, the driving motor 7 and It is connected to the rotary motor 16 so that each component is operated in accordance with the input signal. To this end, the controller 140 has a circuit or program built in the workflow.

The detachable device according to the present invention configured as described above exhibits the following actions.

First, when the roll R to be processed is placed on the rotting roller 4 of the work car 2, the neck 12 of the roll R contacts the roll touch bar 42, and the roll touch bar ( 42 and the limit touch bar 49 on the connecting table 38 integrally connected with each other is pressed down together.

In this state, the lifting cylinder 5 is expanded to lower the housing 8 of the change part 100.

When the limit switch 49 and the limit touch bar 49 on the connection table 38 are in contact with each other during the lowering, a signal is generated at the limit switch 49, and the signal is transmitted to the control unit 140 so that the control unit 140 The operation of the lifting cylinder 5 is stopped.

In this state, the neck cover 11 in the state inserted into the neck cover insertion opening 10 and the center of the neck 12 of the roll R coincide with each other.

Subsequently, the operation cylinder 51 is extended so that the support rod 41 is slightly tilted in a vertical position about the rotation shaft 40 so that interference does not occur when the neck cover 11 is moved forward and backward.

At this time, the brake plate 44 also rotates together with the support rod 41 being flipped, and the protrusion 43 of the brake plate 44 is caught by the teeth 46 of the guide support 35, thereby limiting the touch bar. 49 maintains the set point.

Next, the drive motor 7 of the change part 100 is operated to select the neck cover 11 suitable for the roll neck 12. As the driving motor 7 rotates, the inner ring 9 inside the engaged housing 8 rotates, and the inner ring 9 stops when the limit switch 13 touches the limit switch 13. Accordingly, the centers of the front and rear propagation part 120 and the neck cover insertion hole 10 are coincident with each other.

In this state, the rotary motor 16 of the forward and backward parts 120 operates. According to the operation of the rotary motor 16, the screw 17 is rotated in the reverse direction, the rod 20 screwed to the screw 17 is advanced.

The advanced rod 20 pushes the neck cover 11 inserted into the neck cover insertion hole 10 to be inserted into the neck 12 of the roll. That is, the connect body 23 at the end of the rod is inserted into the body housing 27, and the fitting hole 24 is inserted into the fitting piece 30.

When the rotting roller 4 of the work car 2 rotates in this state, the roll R is rotated, and the magnet plate is brought into close contact with the side of the neck 12 of the roll R by the rotation of the roll R. 32 will also rotate. However, the magnet on-off control key 31 connected through the fitting piece 30 and the connecting shaft 28 is not rotated because the fitting piece 30 is inserted into the fitting hole 24, and as a result, the magnet on-off control key 31 is turned on. The off control key 31 is turned on and the magnet plate 31 is magnetic.

As soon as the magnet plate 31 becomes magnetic, it is attached to the side face of the neck 12 of the roll R made of metal.

The magnetic force generated at this time is sensed by the sensor 33, the signal is transmitted to the control unit 140 to stop the rotting roller 4 of the work car 2, the roll (R) also stops together do.

Thus, the magnet cover 11 is in close contact with the roll neck 12 by the magnetism of the magnet plate 31, and the rod 18 can be retracted, and the screw (referred to according to the forward rotation of the rotating motor 16) The forward rotation of 17 is made, and the rod 18 is reversed.

When the rod 18 is fully retracted, the elevating cylinder 5 is reduced to raise the change unit 100, the work car 2 is drawn into the room 1, and the roll R inside the room 1. Carry out the machining work.

After the less processing is completed, the roll R is seated on the rotting roller 4 of the work car 2, and the rotting roller 4 is rotated so that the key grooves of the body housing 27 of the neck cover 11 are rotated. 26) should be in the vertical direction.

Then, the lowering cylinder 5 is extended to lower the change unit 100 to coincide with the center of the forward and backward portion 120 and the neck cover insertion opening 10 as described above. In this state, the rotary motor 16 is operated to move the rod 18 forward so that the key 25 of the connect body 23 is inserted into the key groove 26 of the body housing 27, thereby fitting the fitting hole 24. It is inserted into the piece 30.

When the rotting roller 4 is rotated in the inserted state to rotate the roll R, the magnet plate 32 attached to the neck 12 side of the roll R is rotated and connected to the connecting shaft 28. The magnet on-off control key 31 is turned off so that the magnet of the magnet plate 32 disappears, and a signal is input to the sensing sensor 33 at the moment when the magnet disappears, and the signal is transmitted to the controller 140. The rotting roller 4 is stopped.

Then, the magnet plate disappears from the magnet plate 32, so that the neck cover 11 can be separated from the roll neck 12. The position of the rotting roller 4 is stopped is the key 25 of the connect body 23. In the upright position, the key groove 26 of the body housing 27 is in a horizontal state so that when the rod 18 moves backward, the neck cover 11 moves backward with the rod 18.

The roll R from which the neck cover 11 is taken out is seated on the work car 2 and moved to the next work process, and the change part 100 is lifted by the lifting cylinder 5, and the roll touch bar ( 42 returns to its original position as the support rod 41 is vertical due to the reduction of the operation cylinder 51. At this time, the brake plate 44 has the projection 43 disengaged from the teeth 46 by the rotational force of the rotating shaft. As a result, the vertical state of the support rod 41 is enabled.

As described above, according to the present invention, in the less processing operation of projecting grit particles on the roll surface, the detachment operation of the neck cover for protecting the roll neck, and the bending operation for preventing the neck cover from detachment are performed on the mechanical device. By doing so automatically, not only improves the productivity of less machining due to the reduction of working time, but also less automation of the machine is possible, which reduces the worker's work fatigue and improves safety in the industrial field.

Claims (5)

In a less machine that seats a roll on a rotting roller rotatably installed in a work car prior to roughening the surface of the roll, An insertion space formed corresponding to the neck of the roll is formed on one side with a separation wall therebetween, and a body housing having a key groove is formed on the other side, and a fitting piece located on the body housing side passes through the separation wall. The magnet is fixed to one side of the shaft and the magnet on-off control key located in the insertion space is fixed to the other side of the connecting shaft, the magnet plate which has a magnet according to the rotation of the magnet on-off control key is fixed to the inside of the insertion space cover; With an inner ring formed with a lifting cylinder provided on each support stand on both sides of the work car, a housing fixed to the rod of the lifting cylinder, and a neck cover insertion hole which is rotatable inside the housing and inserts the neck cover. Change part made; And A rod that is fixed to a lower end of the housing, a screw that is rotated by a rotating motor installed on the seat, a rod that passes through the rod housing fixed to the seat and moves forward and backward as the screw rotates, and the rod Front and rear parts consisting of a connector body is fixed to the end of the fitting hole is formed inside the key is formed on the outer periphery Roll neck cover detachable device of the less machine, characterized in that it comprises a. According to claim 1, a plurality of rod housings on the ground on which the work car is placed, the guide rods inserted in the plurality of rod housings are elastically supported, the axial housing and the connecting rods respectively fixed to the upper end of the guide rods are interconnected And both ends of the rotating shaft inserted into the celebration housing protrude to opposite sides of the celebration housing, and a roll touch bar is fixed between the upper sides of the support rods fixed to both sides of the projecting rotation shaft, A brake plate having a plurality of protrusions is fixed to both ends of the rotating shaft that protrudes outwardly, and guide guides having a plurality of teeth to which the protrusions of the brake plate are selectively coupled are erected outside the plurality of rod housings. The connection rod is formed in the middle of the long hole is formed, the long hole of the connecting rod The roll of the less machine, characterized in that the rod of the fixed working cylinder is inserted and fixed, and further comprising a center level alignment portion corresponding to the limit switch installed on the seating and consisting of a limit touch bar fixed to the end of the connecting rod. Neck cover detachable device. The method of claim 1, wherein the change unit, A square groove is formed on an upper side of the housing, and a gear is formed on an outer circumferential surface of the inner ring so that the inner ring can be rotated by the rotation of a drive motor installed outside the housing. Roll neck cover detachable device of the less machine, which is fixed to the rotating shaft of one drive motor, the neck cover insertion opening is formed in the inner peripheral surface of the inner ring at intervals of 90 degrees. The method of claim 1, wherein the rod is moved back and forth in accordance with the rotation of the screw, Guide groove is formed in the longitudinal direction of the rod housing, the guide jaw corresponding to the roll neck cover detachable device of the machine, characterized in that formed in the longitudinal direction on the outside of the rod. The method of claim 1, wherein the neck cover is inserted into a roll neck. The limit switch is installed in the housing, and the roll neck cover detachable device of the less machine, characterized in that for fixing the plurality of limit switch touch bar corresponding to the outer surface of the neck cover insertion opening.