KR100812156B1 - Choke anti-revolution apparatus of Reduction roll polishing process - Google Patents

Abstract

The present invention relates to a choke anti-rotation device of a rolling roll polishing process, and more particularly, to a choke anti-rotation device of a rolling roll polishing process that can prevent choke rotation during and after a polishing operation.

The present invention includes a cylinder housing vertically fixed to one side of a roll barrel having an arm for holding a rolling roll and a winch wire for pulling and rotating the chocks supported on both sides of the rolling roll upwards; A conveying screw installed inside the cylinder housing and connected to a driving motor to be rotated in place; A push rod screwed with the transfer screw and installed to move up and down in the cylinder housing; Sensing means provided on a side of the cylinder housing to limit vertical movement of the push rod; And choke support means fixedly installed at a lower portion of the push rod and elastically supporting the choke to prevent the choke from being rotated when the choke is pulled by the winch wire.

Roll barrel, cylinder housing, feed screw, push rod, upper, lower limit switch, guide rod, top plate, guide plate, contact plate

Description

Choke anti-revolution apparatus of Reduction roll polishing process

1 and 2 is a front view showing the rotation of the conventional choke,

3 is a side view showing a conventional choke rotation;

4 is a view for explaining a collision with a grinder during the rotation of the conventional choke,

5 is a perspective view showing a choke rotation prevention device of a rolling roll polishing process according to the present invention,

Figure 6 is a partial cutaway perspective view of the main portion of the present invention,

7 and 8 are cross-sectional view showing the operation of the push rod of the present invention,

9 and 10 are cross-sectional view showing the choke support means of the present invention,

11 to 13 are views for explaining the operation of the present invention,

14 is a view for explaining a support state of a bearing;

15 to 17 are diagrams for explaining the operation of the interlocking limit switch.

※ Explanation of symbols about main part of drawing ※

C: Choke R: Rolling Roll

1: roll barrel 2: arm

4: winch wire 110: cylinder housing                 

120: feed screw 130: push rod

141: mounting bracket

142,143: 1st upper, lower limit switch

144,145: second upper, lower limit switch

151: top plate 152: information board

153: contact plate 160: bending prevention rod

161: Guide Bracket

The present invention relates to a choke anti-rotation device of a rolling roll polishing process, and more particularly, to a choke anti-rotation device of a rolling roll polishing process that can prevent choke rotation during and after a polishing operation.

In general, the rolling rolls of the rolling mill are supported by the choke on both sides thereof and polished by the choke grinder to smooth the surface after a certain time of use.

Prior to the grinding step of the rolling roll, the rolling roll is pulled up by the arms of the roll barrel and placed in a standby state for polishing operation.

In the polishing step of the rolling roll, only 90 ° of the choke direction is changed by using the wire of the winch wire drum and the wire of the cable drum while the choke is fixed by the choke fixing cylinder of the grinding machine. The reason for changing the choke direction from horizontal to vertical is to reduce the installation space of the choke to facilitate the grinding of the rolling rolls.

1 and 2 are side views showing the choke change direction, and FIG. 3 is a cross-sectional view taken along the line A-A of FIG.

As shown in FIG. 1 and FIG. 2, the choke C is supported on both sides of the rolling roll R, and the arm 2 of the roll cylinder 1 is supported in the middle of the rolling roll R. As shown in FIG. In this state, in order to grind the choke C without removing the choke C from the rolling roll R, the choke machine grinder is installed closer to the rolling roll by turning the choke C positioned horizontally vertically. It can be.

With choke C positioned horizontally (see Fig. 1), choke C is pushed to pull the wire 4 of winch wire drum 3 to one side of the choke and then push the operating switch SW to pull. It is positioned almost vertically as it is rotated (see FIG. 2).

At this time, as shown in FIG. 3, the choke C is pulled clockwise due to the rise of the winch wire 4, but the choke C is completely vertical because it is forced to rotate counterclockwise on the center of gravity. It is not able to achieve a certain angle (X °: see Fig. 3).

At this time, as shown in Figure 4, the tension is increased, the wire 4 is broken, or the wire pin (4a: see Figure 2) of the choke (C) is separated can cause a large equipment accident, choke (C) Since it rises in the inclined state, the choke C and the choke fixed cylinder 11 of the grinder 10 collide with each other and are damaged.

The present invention has been invented to solve the above problems, and when the choke is pulled up using the winch wire, the choke is held vertically to prevent excessive load on the winch wire and at the same time the choke fixing cylinder of the choke and the polishing machine It is to provide a choke rotation prevention device of a rolling roll polishing process that can prevent the collision.

Referring to the characteristic configuration of the present invention for achieving the above object is as follows.

The present invention includes a cylinder housing vertically fixed to one side of a roll barrel having an arm for holding a rolling roll and a winch wire for pulling and rotating the chocks supported on both sides of the rolling roll upwards; A conveying screw installed inside the cylinder housing and connected to a driving motor to be rotated in place; A push rod screwed with the transfer screw and installed to move up and down in the cylinder housing; Sensing means provided on a side of the cylinder housing to limit vertical movement of the push rod; It is fixed to the lower portion of the push rod, choke support means for elastically supporting the choke to prevent the choke is rotated when pulled by the winch wire;

The sensing means includes a mounting bracket fixed to the outside of the cylinder housing; First upper and lower limit switches respectively installed at upper and lower portions of the bracket; It is fixed to the push rod is moved up and down, and the upper and lower, the first upper, the second upper contacting the lower limit switch, respectively, and consists of a guide rod provided with a lower limit switch.                     

The choke support means, the upper plate is fixed to the lower end of the push rod; A guide plate elastically installed under the fixing plate; It is installed to be movable up and down in the lower portion of the guide plate, the contact plate for pressing the choke elastically by a spring;

An anti-bending rod is vertically installed on an upper surface of the upper plate, and a guide bracket for guiding the anti-bending rod is fixed to one side of the roll barrel.

Hereinafter, the present invention configured as described above with reference to the accompanying drawings in detail.

1 and 2 is a front view showing the rotation of the conventional choke, Figure 3 is a side view showing the rotation of the conventional choke, Figure 4 is a view for explaining the collision with the grinder during the rotation of the conventional choke, Figure 5 9 is a perspective view showing a choke rotation prevention device of the rolling roll polishing process according to the invention, Figure 6 is a partial cutaway perspective view of the main portion of the present invention, Figures 7 and 8 are sectional views showing the operation of the push rod of the present invention, Figure 9 And Figure 10 is a cross-sectional view showing the choke support means of the present invention, Figures 11 to 13 are views for explaining the operation of the present invention, Figure 14 is a view for explaining the support state of the bearing, Figures 15 to 15 17 is a diagram for explaining the operation of the interlocking limit switch.

In general, as shown in Figure 1, in the rolling mill rolling roll (R) is supported by the choke (C), after a certain period of time to polish the surface of the rolling roll (R) to smooth the surface You can get the product.

The roll cylinder 1 serves to hold the rolling roll R and moves it in place. On one side of the roll cylinder 1, a plurality of arms 2 holding the rolling roll R are provided, and the roll cylinder 1 The other side of) is provided with the winch wire 4 which pulls and rotates the choke C upwards.

In other words, in order to polish the rolling roll R in a state in which the chokes C supported on both sides of the rolling roll R are not separated, rolling is performed by reducing the installation space by standing the choke C vertically positioned vertically. The roll R and the polishing machine 10 (see FIG. 4) can be brought into close proximity to each other, so that the polishing operation can be easily performed.

When the winch wire 4 is pulled to one side of the choke C using the fixing pin 4a, the choke C is rotated from horizontal to vertical, and the position thereof is switched. By elastically supporting C), the choke C is positioned vertically without tilting.

Hereinafter, the configuration of the choke (C) anti-rotation device of the present invention with reference to Figure 5 to 10 as follows.

The cylinder housing 110 is vertically fixed to one side of the roll barrel (1), the feed screw 120 is installed in the cylinder housing 110 is connected to the gear and the driving motor (M) to rotate in place, A push rod 130 is installed to move up and down inside the cylinder housing 110, and the push rod 130 is configured to be screwed with the feed screw 120.

Therefore, when the feed screw 120 is rotated, the push rod 130 screwed to the feed screw 120 is configured to move up and down.                     

In order to support the choke (C) to support the appropriate force for this purpose the present invention provides a sensing means 140 on the side of the cylinder housing 110 to limit the vertical movement of the push rod 130, the push rod The lower portion of the 130 is provided with choke support means 150 for elastically supporting the choke C to prevent the choke C from being rotated when pulled by the winch wire 4.

First, referring to FIG. 6 to FIG. 8, referring to the configuration of the sensing means 140, the mounting bracket 141 is fixedly installed on the outside of the cylinder housing 110, respectively, on the upper and lower portions of the mounting bracket 141. First upper and lower limit switches 142 and 143 are provided.

The guide rod 146 is fixed to the push rod 130 and vertically installed to move up and down with the push rod 130. The first upper and lower limit switches 142 are disposed on the upper and lower portions of the guide rod 146. And second upper and lower limit switches 144 and 145 selectively contacting the 143 respectively.

Therefore, when the push rod 130 moves up and down, the guide rod 146 fixed to the push rod 130 also moves up and down together, and at this time, the second upper and lower limit switches 144 installed on the guide rod 146. 145 is configured to selectively contact the first upper and lower limit switches 142 and 143.

In addition, the bending prevention rod 160 is vertically installed on the upper surface of the upper plate 151, the guide rod 161 for guiding the bending prevention rod 160 is fixed to one side of the roll cylinder (1) by pushing the rod ( 130) move smoothly.                     

Looking at the configuration of the choke support means 150 with reference to Figures 9 and 10, the upper plate 151 is pin fixed to the lower end of the push rod 130 (see Figure 6), the lower portion of the upper plate 151 The guide plate 152 is elastically installed by the spring S1. A close contact plate 153 is installed at the lower portion of the guide plate 152 to be movable up and down by a spring S2.

Accordingly, when the push rod 130 is pushed downward, the upper plate 151 connected to the push rod 130, and the guide plate 152 and the contact plate 153 receive downward force, and the contact plate 153 is choked. (C: see FIG. 11) to pressurize.

Referring to the operation of the present invention configured as described above is as follows.

As shown in FIG. 11 and FIG. 12, the driver works with the roll cylinder 1 in order to grind the rolling roll R, and the rolling roll R is gripped by the arm 2, and it moves in place.

In the polishing operation, the winch wire 4 is fastened to one side of the choke C using the fixing pin 4a, and the operation switch SW is turned on to shift the choke C from the horizontal to the vertical direction.

 At this time, as shown in FIG. 12, the choke C is inclined at a predetermined angle (X °: see FIG. 12) by its own load, and the driver drives the driving motor M by turning on the operation switch again.

As shown in FIG. 7, the gear G and the feed screw 120 are sequentially rotated by the operation of the drive motor M. At this time, the push rod 130 screwed to the feed screw 120 moves downward. do.                     

At this time, the push rod 130 and the upper plate 151, the guide plate 152, the contact plate 153 by the guide rod 146 smoothly descends vertically.

As shown in FIG. 9, as the push rod 130 is moved downward, the upper plate 151 connected to the lower portion of the push rod 130 receives downward force, and the force is sequentially applied to the guide plate 152 and the contact plate. It is transmitted to the bearing 153a of 153.

By the spring S interposed between the top plate 151 and the guide plate 152 and between the guide plate 152 and the contact plate 153, the bearing 153a of the contact plate 153 elastically picks up the choke C. It pressurizes and it supports so that choke C may be perpendicular | vertical (refer FIG. 13).

In addition, as shown in FIG. 14, since the bearing 153a of the contact plate 153 is elastically supported on the upper surface of the choke C, the choke C can be easily horizontally maintained.

On the other hand, when the driver drives the drive motor M (see FIG. 7) for too long and the push rod moves too downward, too much force is applied to the contact plate 153, or an eccentric load is generated. There is a risk of causing it.

In order to prevent this, as shown in FIG. 15, two interlocking limit switches 155 are installed inside the guide plate 152, and the touch bar 156 is provided on the contact plate 153.

As shown in FIG. 16, when a uniform force is applied to the guide plate 152, the touch bar 156 contacts both sides of the interlocking limit switch 155. However, as shown in FIG. 17, when the force is biased, the touch bar 156 is touched. The bar 156 is in contact with only one interlocking limit switch 155, and at this time, the driving motor (M: see Fig. 5) is automatically stopped to prevent the bending (deformation) of the push rod 130 and the guide rod 146. It can be prevented.

According to the present invention, since the contact plate 153 elastically supports the choke C and the choke C is not vertically tilted, it is perpendicular to the fixed cylinder 11 of the polishing machine 10. There is no fear of hitting the winch wires 4, and there is no fear that the fixing pin 4a may fall out.

As described above, the present invention prevents the choke from colliding with the choke fixed cylinder of the polishing machine during the step before and after the polishing operation, and can safely carry out the choke drawing operation.

Claims (4)

It is perpendicular to one side of the roll cylinder 1 provided with the arm 2 holding the rolling roll R and the winch wire 4 which pulls and rotates the choke C supported on both sides of the rolling roll R upwards. A cylinder housing 110 fixedly installed with; A transfer screw 120 installed inside the cylinder housing 110 and connected to the driving motor M so as to rotate in place; A push rod (130) screwed to the transfer screw (120) and installed to move up and down into the cylinder housing; Sensing means (140) installed on the side of the cylinder housing (110) to limit the vertical movement of the push rod (130); And It is fixed to the lower portion of the push rod 130, the choke support means 150 for elastically supporting the choke (C) to prevent the choke (C) is rotated when pulled by the winch wire; including as Choke anti-rotation device of the rolling roll polishing process, characterized in that configured. The method of claim 1, wherein the sensing means 140, A mounting bracket 141 fixed to the outside of the cylinder housing 110; First upper and lower limit switches 142 and 143 respectively installed on upper and lower portions of the mounting bracket 141; And The guide rod 146 fixed and fixed to the push rod 130 and having a second upper and lower limit switches 144 and 145 selectively contacted with upper and lower limit switches, respectively, at the upper and lower portions thereof. Choke rotation prevention device of the rolling roll polishing process, characterized in that consisting of. The method of claim 1, wherein the choke support means 150, An upper plate 151 fixed to the lower end of the push rod 130; A guide plate 152 elastically installed under the upper plate; And Choke rotation of the rolling roll polishing process, characterized in that consisting of; the contact plate 152 is installed to be moved up and down in the lower portion of the guide plate 152, the contact plate 153 to elastically press the choke (C) by a spring (S) Prevention device. According to claim 3, wherein the upper surface of the upper plate 151, the anti-bending rod 160 is installed vertically, one side of the roll cylinder 1 guide bracket 161 for guiding the anti-bending rod 160 is Choke rotation prevention device of the rolling roll polishing process, characterized in that the fixed installation.

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