KR200181449Y1 - Automatic adjusting apparatus of roll mill height - Google Patents

Abstract

The present invention relates to a rolling mill height adjusting device of a rolling line in which a continuous cast slab is rolled into strips and wound into a coil, and then sent to a post-process. It is an object of the present invention to provide a device for automatically adjusting the height of a rolling mill, which can be adjusted according to the selected thickness and moved to a liner having an appropriate thickness so as to easily adjust the pass line of the rolling roll in the cab.

The present invention is a height adjusting device of a rolling mill for adjusting a rolling pass line, which is coupled to each other by a connecting bar 102 so as to be movable between a housing 12 and a roll choke 3 to adjust a height of the rolling mill. Step liners (101a, 101b) consisting of a plurality of stages; A cylinder 105 fixedly held to a support 107 mounted at the rear end of the housing 12 and having a rod end connected to the rear end of the stepliner 101a to move the stepliner; Description of the present invention relates to an automatic height adjusting device for a rolling mill, characterized by having a slip guide 112 fixed to a lower side of the housing 12 and configured to move the stepliner 101 in contact with the bearing 114 between the inner grooves thereof. Make a point.

Description

Automatic height adjusting device of rolling mill {AUTOMATIC ADJUSTING APPARATUS OF ROLL MILL HEIGHT}

The present invention relates to a rolling mill height adjusting device of a rolling line in which a continuous cast slab is rolled into strips and wound into a coil, and then sent to a post-process. The present invention relates to a device for automatically adjusting the height of a rolling mill selected by the amount of wear and the amount of grinding and moving to an appropriate liner so that the pass line of the rolling roll can be easily adjusted in the cab.

As shown in FIG. 1, when rolling the slabs into strips in a rolling line, the rolling roll housing 12 is guided between the pinch rolls 202 and the strips 206 wound on the payoff reel 201 to roll into strips of a predetermined thickness. After passing through the rolling rolls (1, 2) installed in the rolling, and then rolled through the exit pinch roll 204 to the take-up reel (203) to be transferred to the post-process, the take-up reel (203) ), The rolling rolls 1 and 2 are pushed up to the cylinder 7 so as to be horizontal to the entry and exit pinch rolls 202 and 204 so as to maintain an accurate pass line.

However, if the height of the pass line is not constant according to the wear and grinding of the rolling rolls 1 and 2, flatness and shape defects of the produced strip may occur, which may be unsuitable for various finished products.

Therefore, as shown in FIG. 2, the balance cylinder 10 is operated to keep the rolling pass line constant so as to lower the rolling rolls 1 and 2, and then the lower portion of the Fresa block 11 and the roll chalk (according to the rolling roll diameter). 3) After inserting a single liner of a predetermined thickness so as to supplement the wear and grinding amount of the rolling roll on the upper end, and combined with the Fresa block (11) by fastening with a bolt to adjust the rolling pass line.

However, in the case of adjusting the rolling pass line as described above, the time required for inserting the liner to replenish the pass line of the rolling roll is excessive, and the work of separating and tightening the Fresa block 11 of weight is very difficult. The work resulted in low productivity and risk of safety hazards.

In addition, there have been various problems in terms of lighting equipment that must have various liners for each thickness and use them when necessary.

Accordingly, the present invention has been made to solve the problems of the prior art as described above, by selecting the step liner consisting of a multi-stage according to the wear and grinding amount of the rolling roll to move to the appropriate liner and insert the path of the rolling roll in the cab easily It is an object of the present invention to provide a device for automatically adjusting the height of a rolling mill to adjust a line.

1 is a view schematically showing a rolling line,

2 is a view showing the configuration of a rolling mill equipped with a rolling mill height adjusting device according to the present invention;

3 is a view showing a step liner constituting the present invention,

4 is a view showing a structure of a slip guide constituting the present invention,

5 is a front view of the rolling mill shown in FIG. 2.

Explanation of symbols on the main parts of the drawings

1,2: rolling roll 3: roll choke 6,7: push-up cylinder

10: balance cylinder 11: press block 12: rolling roll housing

101: step liner 102: connecting bar 105: operating cylinder

107: support 112: slip guide 108: rod end

The present invention for achieving the above object is a height adjusting device of a rolling mill for adjusting a rolling pass line, the step consisting of a multi-stage coupled to each other by a connecting bar and movably installed between the housing and the roll choke to adjust the height of the rolling mill. A liner; A cylinder fixed to a support mounted to a rear end of the housing, the rod end being connected to a rear end of the stepliner and operative to move the stepliner; And a slip guide fixed to the lower side of the housing and adapted to move the stepliner in contact with the bearing between the inner grooves thereof.

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

As shown in FIG. 2, in the present invention, the bogie skid 8 that is movable to the cylinder 9 under the roll choke 3 of the rolling rolls 1 and 2 installed to operate the balance cylinder 10 to ascend and descend. ) And the amount of wear or grinding of the rolling roll between the upper roll choke 3 and the rolling roll housing 12 in the rolling system formed by installing the push-up cylinders 6 and 7 below the roll choke 3. The step liners 101a and 101b, which are formed in multiple stages (for example, five stages) with different thicknesses to be replenished, are movable.

At this time, the step liners 101a and 101b are installed so that the presser block 11 installed on the top of the roll choke 3 and the step liner of the multi-stage are in contact with each other, and at one end of the step liner 101a and 101b, an operation cylinder 105 is provided. Rod end 108 is coupled by a fixing pin 103 to move the step liner.

On the other hand, the support 107 is fastened and installed as a bolt 109 on one side end side of the rolling roll housing 12 above the roll choke 3, and the bracket is mounted on the base 106 mounted below the end of the support 107. The cylinder 105 is fixed with 104.

3 and 4 in the present invention, the step liner 101a and the step liner 101b are coupled to the connection bar 102 to be configured to move together, and the step liner of the top of the roll choke 3 ( Drive bearings 114 having slip guides 112a and 112b mounted on the sidewalls of the grooves of slip guides 112a and 112b by mounting the slip guides 112a and 112b on the lower side of the rolling roll housing 12 by bolts 113 to the engaging portions 101a and 101b. And the step liners 101a and 101b are moved in contact with each other.

Meanwhile, in the present invention, the step liner 101 may be moved in stages by mounting the distance sensor 110 at the rear end of the step liner 101a to recognize the distance to the rear end of the slip guide 112a. have.

FIG. 5 is a front view of a rolling roll showing a configuration in which a step liner constituting the present invention is installed between the rolling roll housing 12 and the roll choke 3.

Next will be described the operation of the present invention made as described above.

As shown in FIG. 2, when wear occurs due to long-term use of the rolling rolls 1 and 2 or when the rolling passline is changed by grinding, it is necessary to adjust the height of the rolling roll, and then lower the balance cylinder 10. It operates to allow the step liner 101 installed between the roll choke 3 and the housing 12 to move, and then the cylinder 105 is operated to move the step liners 101a and 101b.

The operation for adjusting the rolling pass line as described above can be controlled by the operator operating the switch in the cab to move the stepliner 101 to the appropriate number of stages and to raise and operate the balance cylinder 10 again.

Therefore, according to the present invention operating as described above, by adjusting the rolling pass line by appropriately moving the step liner formed in the multi-step in the cab, the work time is shortened and the productivity is simple and the productivity is improved, and the safety accident can be prevented. It can reduce the occurrence of bonding of the rolled products and reduce the wear of the rolling roll surface.

Claims (1)

A height adjusting device of a rolling mill for adjusting a rolling pass line, comprising a plurality of stages coupled to each other by a connecting bar 102 and movably installed between the housing 12 and the roll choke 3 to adjust the height of the rolling mill. Step liners 101a and 101b; A cylinder 105 fixedly held to a support 107 mounted at the rear end of the housing 12 and having a rod end connected to the rear end of the stepliner 101a to move the stepliner; And a slip guide (112) fixed to the lower side of the housing (12) to move the stepliner (101) in contact with the bearing (114) between the inner grooves thereof.