KR20130061347A - Table roller assembly for joining overlap bar in hot endless rolling process - Google Patents

Abstract

PURPOSE: A table roller assembly for a joining device in an endless hot rolling process is provided to enable easy and quick or partial replacement of malfunctioning parts of a table roller installed at the exit of the joining device in an endless hot rolling system by employing a multi-division type table roller structure. CONSTITUTION: A table roller assembly for a joining device in an endless hot rolling process comprises a roll body(110) and division parts(120,130). The roll body touches a target and discharges the target to the exit. The division parts, in which each roll axis supporting both ends of the roll body to rotate are divided into multiple parts, are fixed to be separable from each other. The division parts are divided in odd numbers.

Description

TABLE ROLLER ASSEMBLY FOR JOINING OVERLAP BAR IN HOT ENDLESS ROLLING PROCESS}

The present invention relates to a table roller assembly for a hot rolled continuous joiner, and more particularly, to reduce work time due to ease of disassembly and replacement while ensuring safety of work when replacing a table roller used in a hot rolled continuous process. An improved multi-part table roller assembly is provided.

As is well known, the hot rolling continuous process is one of the hot rolling methods developed to improve the productivity of the product and improve the quality competitiveness. Unlike the conventional batch type rolling, the hot rolled continuous process is carried out in the coil box. After adjusting the spacing, the overlapping bar is bonded at the jointer, followed by a finishing mill, and then cutting the joint before winding the coil to produce a coil.

For example, the descaling step S10, the overlapping step S20, the joining step S30, and the cropping removing step S40, as shown in the example of FIG. 1, are usually performed. After the scale existing on the surface is removed, the ash 20 is shear-bonded in a state where the rear end of the preceding material 10 overlaps the upper surface of the front end of the trailing material 20.

At this time, crops 30 generated at upper and lower portions of the joined preceding material 10 and the following material 20 are removed.

On the other hand, an integrated table roller T having a shape as shown in Fig. 2 is provided at the exit side of the bonding machine in the hot rolling continuous facility, and is dedicated to the transfer of slabs, bars and the like.

However, since the exit of the adapter having the table roller T is accompanied by complicated auxiliary equipments, when the table roller T is disturbed, the auxiliary equipments must be disassembled first, so that the table rollers T can be taken out. As it is configured to take a long time due to dismantling, it was not only inconvenient but also the risk of safety accidents such as narrowing.

In addition, the table roller (T) corresponds to a heavy product because it is an integral type, and since it is impossible to partially replace or dismantle, the table roller (T) is the main culprit of productivity drop due to excessive work time when dismantling or maintenance is required.

As a related prior art, Korean Patent Publication No. 2011-0076585 has been disclosed, but this relates to "a crop measuring apparatus and method of a hot rolling continuous rolling process" and is far from the present invention.

The present invention was created in view of the above-mentioned problems in the prior art, and was created to solve this problem. Its main purpose is to provide a table roller assembly for a hot rolled continuous splicer that can be quickly replaced or partially replaced, and at the same time prevents accidents and shortens working time, thus improving productivity.

The present invention as a means for achieving the above object, in the table roller assembly installed on the exit side of the bonding machine for performing a hot rolling continuous process; The table roller assembly may include: a roll body for guiding discharge of the object to the exit while contacting the object; Each roll shaft for supporting both ends of the roll body is divided into a plurality consisting of a divided portion; each divided portion provides a table roller assembly for a hot-rolled continuous joint characterized in that the separation is fixed to each other.

At this time, the division is also characterized in that the odd number divided.

In addition, the structure in which each of the divided parts are separably fixed to each other is also characterized in that the form of any one of the flange coupling type, bolting fastening type, projection insertion type.

According to the present invention, by configuring a table roller installed in a narrow space in a multi-segment type, partial replacement is possible, thereby reducing the replacement time, ensuring ease of replacement work, reducing the risk of safety accidents, and improving productivity. Can be.

1 is a schematic process diagram showing a general hot rolled continuous process.
Figure 2 is an exemplary view of a table roller installed on the exit side of the bonding machine according to the prior art.
3 is an exemplary view of a table roller assembly for a hot rolled continuous joining machine according to the present invention.
Figure 4 is an exemplary view showing another example of a table roller assembly for a hot rolled continuous adapter according to the present invention.
Figure 5 is an exemplary view showing an example of the fastening of the divided parts when the splitting configuration of the table roller assembly for a hot continuous casing according to the present invention.

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

The present invention relates to a table roller made in a multi-segment form so as to structurally dismantle the table roller installed on the exit side of the bonding machine during the continuous hot rolling process, the exit side of the bonding machine in which the table roller is installed is a lot of auxiliary equipment, so the space is small It is to solve this problem because there are many difficulties in replacement work.

To this end, the present invention implements a table roller assembly by dividing the plurality of table rollers in the longitudinal direction, preferably, divided into odd numbers, such as three divisions and five divisions, so that it is easy to work and partial replacement is possible in case of partial failure. It is made up.

Here, the reason for dividing the table roller in an odd number is that at least the roll body is not only difficult to divide, but also impossible to divide due to the nature of the work.

Therefore, it is most ideal to basically divide the roll body into one division unit, and take the form of dividing a large number of roll shafts supporting the roll body in rotation.

More specifically, as shown in Figure 3, the table roller assembly 100 according to an embodiment of the present invention is the roll main body 110, the first split unit 120, which is divided on one side of the roll shaft 122, the other side Like the second dividing unit 130 in which the roll shaft 132 is divided, the roll shaft 132 may have a three-divided form.

In this case, the first splitter 120 and the second splitter 130 may be configured as shown in FIG. 5.

According to FIG. 5, as illustrated in (a), the roll shafts 122 and 132 are divided into a first roll shaft R1 and a second roll shaft R2 and face each of the first and second roll shafts R1 and R2. At the ends, the flanges F1 and F2 may be integrally provided, and the bolts B may be fixed while being interviewed.

Alternatively, as shown in (b), a male type thread is formed on the first roll shaft R1, and a female type thread is formed on the second roll shaft R2, thereby screwing together. It may have a form that is fixed.

In this case, the male thread and the female thread may be formed in reverse.

Alternatively, as shown in (c), the groove (G) is formed on the first roll shaft (R1), the projection (D) is formed on the second roll shaft (R2) facing each other may be configured to be fitted to each other. have.

Of course, in this case, it is obvious that the grooves G and the protrusions D may be formed in reverse positions.

When configured to form such a form to be assembled together to form one table roller assembly 100, if the table roller assembly 100 having such a structure is a partial failure in the event of a failure during operation, partial replacement can reduce the replacement time In addition, even if it is an overall obstacle, when the divided parts are first dismantled, the total length of the table roller is shortened, thereby facilitating disassembly and reducing work time.

As an example of the dismantling operation, when the above-mentioned first and second division parts 120 and 130 are flange-coupled as shown in FIG. 5 (a), the screws or bolts that bind the flanges may be loosened, and the bolt may be fastened as shown in (b). In the case of a mold, the opposite roll shaft, not the roll body 110 side, that is, the first roll shaft R may be reversely rotated to release the fastened state, and in the case of the protrusion insertion type such as (c), the first roll shaft R may be Loosen and pull to disassemble easily.

In addition, in some cases, it is possible to find a divided part including a portion where a failure occurs and to quickly dismantle it by using a torch or the like.

In addition, the divided part fastening form of (a), (b), (c) illustrated in Figure 5 is preferably applied in a form suitable for the design specifications in consideration of the role of the table roller, the number of revolutions, the working load, strength, and the like. Do.

Another example is FIG. 4.

The example shown in FIG. 4 shows a five segment type.

In the illustrated five-segment type, the roll shaft for supporting both ends of the roll body 110, except for the roll body 110, the first roll shaft (R1), the second roll shaft (R2), the third roll shaft (R3) rolls, respectively The division is formed by dividing, and it may be more useful when dismantling or replacing part.

In addition, although not shown, it is also possible to divide the seven-segment type, 9-segment type, and these examples are only an extension of the basic embodiment described above, only the number of divisions is further increased.

That is, the form of binding these divisions is selected and applied to any one of the three types illustrated in FIG. 5, and may be particularly useful when the roll axis is long.

As such, the multi-slicing table roller assembly according to the present invention shortens the working time due to disassembly, provides convenience and ease of operation, and is partially dismantled based on the divided part, so that heavy work is carried out during operation, narrowing, etc. It will be able to reduce the accident more.

As a result, the maintenance time is reduced (which can be drastically reduced from the existing 16-32 hours to the present invention 1-3 hours), and the maintenance efficiency is increased, which is directly connected to the productivity improvement.

100: table roller assembly 110: roller body
120, 130: roll shaft R1: first roll shaft
R2: 2nd roll shaft R3: 3rd roll shaft

Claims (3)

Claims [1] A table roller assembly installed at an exit side of a bonding machine for performing a hot rolled continuous process;
The table roller assembly,
A roll body for guiding discharge of the object toward the exit while in contact with the object;
Comprised of: a divided portion formed by each roll shaft is divided into multiple support for rotation of both ends of the roll body,
Table divider assembly for hot rolled continuous splicer, characterized in that each partition is separably fixed to each other.
The method according to claim 1;
The splitter table roller assembly for a hot rolled continuous joint, characterized in that divided into an odd number.
The method according to claim 1;
The structure in which each of the partitions is separably fixed to each other is a flanged, bolted fastening, protrusion insert type any one of the form of the roller assembly for hot rolled continuous joints.

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