KR200243963Y1 - Separable Cooling Water Blocker of Rolling Ball Roll - Google Patents

Abstract

The present invention is used to produce the section steel during hot rolling, and selectively works to block only the rolls through which the material passes through the cooling water sprayed to cool the rolls during rolling. Disclosed is a separate cooling water interruption device for a rolling roll for preventing a defect that occurs.

The separate coolant cut-off device of the rolled ball roll according to the present invention is a wiper assembly for blocking the coolant only from the ball selected from the roll rolled material, which is mounted on the material guide and extends between the ball roll supporting frames 2a and 2b. Wiper pressurization mechanism having a pressing roll 13 mounted below the sliding guide 14 moving along the guide rod 12 and a universal joint 11 for moving the pressing roll 13 to a selected ball shape ( 10) is coupled to the sump (8a, 8b) of the upper portion of the material guide (3a, 3b) through the fixed shaft 39, and close to the roll portion 22 of the selected ball roll to block the coolant and the body ( 34) A roll wiper 310 having a middle projection 37 and a spring 35 attached to an end portion and a distribution plate 321, and a roll shaft wiper 310 installed on both sides of the roll wiper through a fixed shaft 39 to carry a ball roll part of a ball roll. Close to the (23) to cut off the coolant and A structure which comprises a plurality of wiper assembly 30 consisting of a buffer 31, a carry beobu wiper 41 is provided with a rear pressure place the fixed plate 47 and the spring 45 of the end that is on.

Description

Separable Cooling Water Blocker of Rolling Ball Roll

The present invention relates to a wiper for blocking the coolant of a ball type roll (Caliber Type Roll) used to produce a shaped steel during hot rolling, and more specifically, the material is passed through the cooling water sprayed to cool the roll when rolling the material. The present invention relates to a separate coolant blocking device for rolling rolls, which is selectively operated to block only the rolls, to prevent the temperature drop and the defects occurring in the materials.

There are rolling rolls used for hot rolling, and flat rolls for rolling sheet materials and ball rolls for producing sheet steels. Reversible rolling mills of rolls have a number of balls in each roll. In the form of gradually decreasing width and height, each ball is called a roll part, and the gap between each ball and the ball is called a carry part.

Cooling water is sprayed on the rolls to prevent the loss and shortening of life due to the rise of the temperature of the rolls when the raw materials are rolled using these rolls. When the coolant falls on the surface of the material, the surface temperature of the material decreases. In particular, free-cutting steel, high manganese steel, and high carbon steel, which are sensitive to rapid temperature changes, cause defects such as large cracks or transverse breaks caused by this cooling water. Install the roll coolant wiper so that it does not fall on the material surface.

That is, the roll cooling water blocking wiper of the conventional structure is not always installed on the roll, and is installed only when working with temperature-sensitive materials. Therefore, when the ordinary steel material is not temperature-sensitive, the coolant sprayed on the upper surface of the roll While flowing from the upper surface to the lower surface while contacting the surface has the effect of maximizing the cooling of the roll, the roll cooling water dropped to the surface of the material and drastically lowered the temperature of the material having a high temperature of 1250 ° C or higher.

In addition, in the rolling of special steel material, an integrated wiper was installed to prevent roll coolant, which causes not only the material temperature but also the large cracks that make the whole product unusable, and the transverse phenomena that significantly degrade the product quality.

However, this wiper consists of one piece with the same groove as the roll part and the carver part of each roll type, and it is inevitable to stop the production for installing and dismantling the integrated wiper, and during the special steel production time which is usually 12 to 24 hours By contacting the coolant only with the upper surface of each mold, the cooling efficiency of the roll is reduced to about 40% or less, and there is a problem that the life of the roll is significantly shortened as the temperature of the roll increases.

The present invention was made to solve the problem of the conventional roll cooling water blocking wiper as described above, by selectively installing a wiper only in the ball passing the rolling material to block the cooling water to extend the life of the roll and produce It is an object of the present invention to provide a separate cooling water blocking device of a rolling ball roll for improving productivity by preventing interruptions and improving productivity and preventing product defects caused by cooling water to improve product quality.

1 is a view showing a configuration in which the device of the present invention is mounted on a ball roll for rolling material;

FIG. 2 is a view taken along line A-A of the apparatus shown in FIG. 1;

3 is a view showing a wiper pressing mechanism constituting the device of the present invention,

4 is a view showing a wiper assembly constituting the device of the present invention.

<Explanation of symbols for main parts of drawing>

1: Mold roll 2a, 2b: Support frame 3a, 3b: Material guide

8a, 8b: Reservoir 10: Wiper pressurization mechanism 11: Universal joint

12: Guide rod 13: Pressure roll 14: Sliding guide

22: Roll 23: Carrier 30: Wiper assembly

31: wiper roll 34, 44: body 35, 45: spring

36, 46: guide portion 37: projection portion 39: fixed shaft 47: fixed plate

Separation type coolant blocking device of the rolling ball roll of the present invention for achieving the above object is a wiper assembly for blocking the cooling water only the selected ball from the ball rolling ball roll, the ball roll support frame is mounted on the material guide ( The pressure roll 13 mounted below the sliding guide 14 moving along the guide rod 12 extending between 2a and 2b, and the universal joint 11 for moving the pressure roll 13 to a selected ball shape. It is coupled to the wiper pressurization mechanism 10 and the water collecting tanks 8a and 8b of the upper portion of the material guides 3a and 3b through the fixed shaft 39, and is in close contact with the roll 22 of the selected ball roll. A roll wiper 310 having a projection 37 in the middle of the body 34 and a spring 35 mounted at an end and a distribution plate 321, and a fixed shaft 39 on both sides of the roll wiper are installed. Close to the carry section 23 of the ball roll to block the coolant It consists of a plurality of wiper assembly 30 composed of a fixed plate 47 is pressed by a roll wiper 31 in the middle of the high body 44 and a carrier wiper 41 having a spring 45 at the end. It is a configuration.

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

As shown in Fig. 1, the coolant cut-off device of the present invention rolls the material into a ball roll 1 having a roll part 22 and a carry part 23 protruding from the roll part for rolling a steel material such as Bloom. In order to cool the ball rolls, the coolant injected from the injection nozzles of the coolant pipes 21 mounted on the upper and rear sides of the support frame 2 on both sides of the ball rolls 1 cools the ball rolls 1, and then It is installed on the bases 4a and 4b above the sump cans 8a and 8b installed on the material guides 3a and 3b installed on both sides of the material transfer line. It is a configuration, which will be described in detail as follows.

As shown in FIG. 1, the wiper pressing mechanism 10 is mounted on the upper part of the material guide 3a for guiding the material 24 to the roll portion 22 of the appropriate ball roll 1, as described above. The wiper assembly 30 is arrange | positioned on the base 4a above the sump container 8a, 8b attached to (3a).

As shown in FIG. 3, the wiper pressurizing mechanism 10 connects the universal joint 11 mounted on the upper portion of the material guide 3a through the support bracket 17 and the sliding guide body to the universal joint 11, It is coupled so as to slide on the connecting member 16 on which the pressure roll 13 is mounted, and the guide rod 12 mounted between the support frames 2a and 2b on both sides of the ball roll 1 so that the pressure roll 13 is appropriately fitted. The sliding guide 14 is moved to the wiper and includes a guide roller 15.

Next, the wiper assembly 30 provided on the upper bases 4a and 4b of the sump 8a and 8b mounted on the material guides 3a and 3b is a roll wiper 31 having a flat end as shown in FIG. ) And a carrier part wiper 41 with a long groove formed at the end, and the roll part wiper 31 has a fixing plate having a plurality of equally spaced bolt holes 33 for fixing the wiper to the wiper body 34. (32) and the distribution plate formed on the fixed plate 32 of the roll wiper 31 to disperse the cooling water coming down the wiper to the sump (8a, 8b) when the wiper 31 is in close contact with the roll (22) It is a structure provided with 321.

In addition, in the middle of the body 34 of the roll wiper 31, the pressing roll 13 is moved to both sides so that the pressing roll 13 of the wiper pressing mechanism 10 shown in FIG. A guide portion 36 for preventing separation and a protrusion 37 having an inclined shape at both sides thereof and having a slanted surface on both sides thereof is formed, and a wiper body 34 is disposed at a lower side of the wiper body 34 opposite to the wiper body 34. The pipe 38 is fixed to the fixed shaft 39 for fixing to 8b via a bearing, and the pressing shaft 13 is roll roll wiper when moving the material to another ball. A spring 35 for returning the roll wiper 31 to its original shape is mounted when it is separated from the protrusion 37 of 31.

Next, a description will be given of the configuration of the carrier wiper 41, which includes a fixing plate 42 having a bolt hole 43 formed therein for fixing the wiper, and in the center of the wiper body 44, the roll wiper 31 has a pressure roll. Carry unit wiper pressing plate 47 is provided to be caught by the roll unit wiper 31 and automatically pressed when pressed down by (13) to bring the carry unit unit wiper 41 into close contact with the carry unit unit 23 of the ball roll. The press roll guide portion 46 is provided at both sides, and the fixed shaft 39 mounted below the end of the carry unit wiper body 44 also has the press roll 13 with the roll portion wiper 31 when moving the material to another ball. The spring 45 for returning the carry unit wiper 41 to the original state is mounted when it is detached from the protrusion 37 of.

As described above, the roll wiper 31 and the carry wiper 41 constitute one set, and thus, a plurality of wiper sets are mounted on the water collecting containers 8a and 8b to constitute the wiper assembly 30.

In the present invention, the wiper assembly 30 as described above is fixed to the sump tanks 8a and 8b mounted to the material guides 3a and 3b. The structure of the wiper assembly 30 will be described. The fixed shaft 39 mounted on the sump 8a, 8b, which is blocked and collected by the pipe, is coupled through the pipe 38 mounted on the lower part of the wiper body 34, 44. The fixed shaft 39 is coupled via a bearing, and the discharge ports for discharging the cooling water are provided at the lower portions of the sump tanks 8a and 8b.

Hereinafter will be described the operation of the separate wiper assembly for blocking the cooling water of the rolling ball roll of the present invention configured as described above.

In the present invention, the pressing roll 13 presses the wipers 31 and 41 according to the movement of the material, and is configured to selectively block the cooling water only through the ball through which the material passes. As shown in FIG. 1, the cooling water pipe 21 is generally illustrated in FIG. Injecting the cooling water continuously to the upper surface of the ball roll (1) through the injection nozzle, when the material (24) heated to the appropriate temperature in the heating furnace is transferred to the front roll (1) for rolling, the material guide (3a) is matched to the right and left of the desired carry part 23, the pressure roll 13 connected to the material guide (3a) and the universal joint 11 in accordance with the movement of the material guide (3a) is a guide rod ( 12 is moved along the pressing portion 37 formed in the center of the body 34 of the roll wiper 31, the roll wiper 31 is in close contact with the roll 22 of the ball roll, the carry on both sides of the roll wiper 31 The pressing plate 47 of the bur wiper 41 is attached to the roll wiper body 34. It is caught and pressed without compression, so that the carry part wiper 41 is brought into close contact with the carry part 23 of the ball roll, and the coolant separated from the roll surface by the wipers 31 and 41 comes down through the wiper to form the coolant dispersion plate 321. ) Are collected in the sump (8a, 8b) and drained to the outlet.

When the material is moved to another ball in order to roll the material, the pressure roll 13 connected to the material guide 3a and the universal joint 11 moves along the guide rod 12 so that the pressure roll 13 protrudes. Roll wiper 31 and carrier wiper 41 which are separated from the roll wiper body 34 and the carrier wiper body 44 by the springs 35 and 45 mounted on the fixed shaft 39. ) Is returned to its original shape, and the next set of wipers closes the coolant by blocking the coolant by closely contacting the roll part and the carrier part of the selected ball roll through the same process to prevent the roll coolant from falling onto the upper surface of the material. In this way, the pressurizing roll presses the wiper according to the movement of the material, thereby selectively blocking the coolant through which the material passes.

Therefore, according to the present invention as described above, to prevent the production interruption by installing and dismantling the integrated wiper according to the rolling conditions in the conventional rolling operation, and to prevent the reduction of the roll cooling effect due to the regular installation in the production of special steel The cooling efficiency can be improved to about 100%, and the roll cooling water is prevented from falling to the surface of the material, which prevents the temperature drop of the material and the defects on the surface of the material, eliminating the waste of manufacturing cost. The wiper works selectively on only the balls through which the material passes, thus achieving a useful effect, such as an extended roll life.

Claims (1)

A wiper assembly for blocking cooling water only from a ball selected from a ball roll for rolling a material, the sliding guide 14 mounted on an upper part of a material guide and moving along a guide rod 12 extending between the ball roll supporting frames 2a and 2b. A wiper pressurizing mechanism (10) having a pressing roll (13) mounted on the lower portion, a universal joint (11) for moving the pressing roll (13) to a selected ball, It is coupled to the sump (8a, 8b) of the upper portion of the material guide (3a, 3b) through the fixed shaft (39), close to the roll portion 22 of the selected ball roll to block the cooling water and the middle of the body 34 A roll wiper 310 having a protrusion 37 and a spring 35 attached to an end portion and a distribution plate 321 and a roll shaft wiper 310 are installed on both sides of the roll wiper through a fixed shaft 39 to a carry unit 23 of a ball roll. A plurality of wiper assemblies (30) comprising a holding plate (47) pressurized by the roll wiper (31) in the middle of the body (44) and a carrier wiper (41) having a spring (45) at the end in close contact with the cooling water. Separation type cooling water blocking device of a rolling roll for rolling, characterized in that consisting of.