KR100797951B1 - Apparatus for compensating wear off of skin pass roll - Google Patents

Abstract

The present invention relates to a device for compensating the wear amount of the roll mounted on the temper rolling equipment by using a liner block, and the compensation device according to the roll wear amount that can make the roll wear compensation work more simple, safe and accurate. It is about giving.

The present invention provides a device for compensating roll wear by inserting a liner block between a roll choke fixing block 130 coupled to an upper roll and a housing fixing block 120 coupled to a housing, wherein the liner blocks have different thicknesses. Upper liner block 160 having portions (a, b) and lower liner block 140 having different thickness portions (c, d) that are in surface contact with the lower surface of the upper liner block 160 in an alternative positional relationship. Comprising a combination of the guide rail 150 for supporting the forward and backward operation of the upper and lower liner block 160, 140, and the upper and lower blocks 160 (140) in accordance with the roll wear amount It provides a compensation device according to the roll wear amount characterized in that it is provided with a cylinder (161, 141) for operating the engine.

Description

Compensation device according to roll wear {APPARATUS FOR COMPENSATING WEAR OFF OF SKIN PASS ROLL}

1 is a front view of main parts of a temper rolling mill equipped with a roll wear compensation device according to the present invention;

Figure 2a is a side view of Figure 1, b is an enlarged side view of lumbar excavation, c is a perspective view of lumbar excavation,

3 is a plan view of FIG.

Figure 4 is a perspective view showing a step-by-step combination according to the roll wear amount of the upper and lower liner block,

5 is a front view showing a connection installation relationship between the upper and lower liner blocks and a cylinder for operating the same;

6 is a detailed configuration of the upper and lower liner block;

7 is a perspective view of a guide rail,

8 is a flowchart of a roll wear compensation operation.

Explanation of symbols on the main parts of the drawings

110: housing 120: housing fixing block

130: roll choke fixed block 140: lower liner block

141: lower liner block back and forth cylinder

142: connecting shaft 150: guide rail                 

151: limit switch 152: limit switch

153: limit switch mounting hole 154: limit switch mounting hole

160: upper liner block 161: upper liner block back and forth cylinder

170: roll choke 180: roll

190: upper and lower liner block contact portion 200: support

201: connecting shaft

The present invention relates to a compensation device according to the wear amount of the roll to be mounted in the skin pass mill (Skin Pass Mill), in particular, by using two liner blocks to compensate the roll wear amount of the multi-stage according to the position of the block between the block simply and efficiently It relates to a device configured to be.

In general, in a rolling mill, a roll wear compensating means, such as a soft line prepared as much as the amount of roll wear, is inserted into the roll support in order to accurately maintain a pass line according to the amount of wear of the roll rolling mill. Or the work to be withdrawn, in the past, the operator is doing this work directly, the adjustment time is long and there was a big risk of safety accidents at work.

In addition, according to the device of Utility Model Registration No. 114095 of the recently known technology, a plurality of liners having different thicknesses are installed on one rotating support, and if necessary, the support is rotated to insert a liner of the corresponding thickness into a roll support to compensate for roll wear. Although a device has been proposed to improve the speed and safety of the device, the device is not industrial because it is difficult to secure a space for use by rotating the liner in a roll housing and the compensation range is extremely limited. The apparatus of -6544 has a structure in which a plurality of liners are prepared in the lower part, and a pressure block for advancing and retreating the liner is installed on the upper part to combine as many liners as necessary among the plurality of liners, and to move forward and insert them integrally. This is a hassle for the operator to manually join when as many liners are needed as possible. The problems that help with time-consuming and there is a problem such as this will be another difficult combined operations.

The present invention is to solve the conventional problems as described above, and an object of the present invention is to provide a roll wear compensation device capable of safely and quickly inserting a liner of a more accurate compensation value according to the wear degree of the roll.

Hereinafter, the present invention for achieving the above object will be described in more detail with reference to the accompanying drawings.

As illustrated in FIGS. 1 to 7, the present invention provides a liner block 140 and 160 which greatly compensates for wear of a roll, a guide rail 150 that guides forward and backward of the liner block, and the liner block. It provides a device consisting of a cylinder (141, 161) for forward and backward operation.                     

The liner blocks 140 and 160 to compensate for the wear of the roll are formed of the upper liner block 160 and the lower liner 140.

The liner block 160 is configured to include a thin portion a having an upper surface horizontal as shown in the example of FIG. 6 and a b portion twice the thickness of the a portion.

The lower liner block 140 includes a thin portion d and a c portion twice the thickness of the d portion where the upper surface is in surface contact in a selective positional relationship with the lower surface of the upper liner block 160 as shown in FIG. 6. The thin part d is formed to have an intermediate thickness between the a part and the b part of the upper liner block 160.

In a preferred embodiment of the portions of the liner block a portion 10mm, b portion 20mm, c portion 30mm, d portion has a thickness of 15mm.

The forward and backward guide rails 150 of the liner block have two sliding surfaces, as illustrated in FIG. 7, to install two limit switches 151 and 152 to detect a stop position when the upper and lower liner blocks are moved forward and backward. (Hole) 153, 154 is formed of a pair of rails facing each other.

The cylinders 141 and 161, which operate the liner block forward and backward, are rotated with the liner blocks 140 and 160, and are connected with the connecting shaft 142 to a clamp having a free space such that the connecting shaft is moved forward and backward, and the cylinder body. Is installed to be rotatable by the connecting shaft 201 to the support 200 fixed to the housing.

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

In general, in the rolling mill, when the roll 180 is worn, the liner is inserted into the roll support by 1/2 of the roll diameter to maintain a constant pass line, thereby compensating for roll wear. Is made on replacement.

When the roll maintenance selection switch is selected on the switch operation panel to replace the roll, the upper and lower rolls are lowered, and a gap is formed at the liner insertion position, and the liner blocks 140 and 160 are connected to the set interlock. To the 1st position (see Fig. 4), and withdraw the roll by the procedure, draw the polished roll by the procedure, check the polished roll diameter, and start from step 1 of the liner compensation value required by the liner compensation criteria. If the corresponding step is selected among the 9 steps, the liner blocks 140 and 160 are automatically moved back and forth to the cylinders 141 and 161 by the set interlock to set the liner block combination position corresponding to the corresponding step. When the roll is raised by the roll choke fixing block 130 fixed to the roll choke 170, the liner block pushes up and rises to be in close contact with the housing fixing block 120 at the top to complete the work.

An embodiment of the roll wear compensation will be described in more detail in each step as follows.

By checking the polished roll diameter, if the corresponding step is selected from the steps 1 to 9 among the liner compensation values required by the liner compensation standard, the liner blocks 140 and 160 of the corresponding step are formed by the set interlock. When the first stage is selected, the upper liner block 160 is advanced and the lower liner block 140 is backward, so that the liner compensation value is zero.

When the second stage is selected, the upper liner block 160 is in the first reverse state (limit switch 151), and the lower liner block 140 is in the reverse state, and the liner compensation value is 10 mm.

When the third stage is selected, the upper liner block 160 is in the advanced state, and the lower liner block 140 is in the one-stage advanced state (limit switch 152) so that the liner compensation value is 15 mm.

When the fourth stage is selected, the upper liner block 160 is in the reversed state, and the lower liner block 140 is in the reversed state, and the liner compensation value is 20 mm.

When the fifth stage is selected, the upper liner block 160 is in the 1st reverse state (limit switch 151) and the lower liner block 140 is in the 1st step forward state (limit switch 152), and the liner compensation value is 25 mm. It becomes

When the sixth step is selected, the upper liner block 160 is advanced and the lower liner block 150 is advanced, so that the liner compensation value is 30 mm.

When the seventh step is selected, the upper liner block 160 is in a reversed state, and the lower liner block 140 is in a one-stage forward state (limit switch 152), so that the liner compensation value is 35 mm.

When the eighth step is selected, the upper liner block 160 is in the first reverse state (limit switch 151) and the lower liner block 140 is in the advanced state so that the liner compensation value is 40 mm.

When the step 9 is selected, the upper liner block 160 is in the reversed state, and the lower liner block 140 is in the advanced state, and the liner compensation value is 50 mm.                     

Figure 8 shows the overall flow of the above work processes.

On the other hand, the roll wear compensation by the combination between the upper and lower liner block 160, 140 should be made the same on both left and right sides of the roll, accordingly, the upper and lower liner block 160 ( In the illustrated example, the left liner blocks are denoted by the letter "a" and the right liner blocks are denoted by the number "b" in the drawing.

Therefore, according to the present invention as described above, no manual intervention of the operator is required during the roll wear compensation operation, which is very safe and adjusted by the selection switch on the operation panel, thereby greatly reducing the work time and combining the pair of liner blocks in multiple stages. Therefore, it is possible to compensate the roll wear amount with a more accurate value, so that it is possible to improve the product quality by maintaining an accurate pass line.

Claims (1)

An apparatus for compensating roll wear by inserting a liner block between a roll choke fixing block 130 coupled to an upper roll and a housing fixing block 120 coupled to a housing. The liner block may have an upper liner block 160 having different thicknesses a and b and different thickness portions c and d in surface contact with a selective positional relationship to the lower surface of the upper liner block 160. Composed of a combination of the lower liner block 140 having a guide rail 150 for guiding forward and backward operations of the upper and lower liner block 160, 140, and the upper and lower blocks 160, 140 ) The compensation device according to the roll wear amount, characterized in that it comprises a cylinder (161, 141) for operating forward and backward corresponding to the roll wear amount.

Images