KR940007720Y1 - Strength regulation apparatus of cold coil - Google Patents

Abstract

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Description

Tensioning device of cold rolled coil

1 is a perspective view of a conventional tension control device.

2 is a perspective view of the combination of the present invention.

3 is an exploded perspective view of the present invention (a) is an excerpt perspective view of the upper flow roll set of the present invention, (b) is an excerpt perspective view of the bearing block base of the present invention, (c) is a perspective view of the cylinder body of the present invention.

* Explanation of symbols for main parts of the drawings

7: bearing block base 8: upper flow roll set

9: upper flow roll bearing block 10: upper flow roll

12: slide groove 13: cylinder rod

13a: cylinder rod fastener 13b, 18a: hole

14: Base upper plate 14a, 21a: Bolt hole

15: cylinder rod insertion hole 16, 17: cylinder fixing bolt hole

17a, 21b: bolt 18: cylinder rod fixture

18b: Pin 19: cylinder body

20: air cylinder 21: base

22: pressure gauge 23: lower fixing roll

The present invention is installed in a fixed line for the final production of cold rolled coil, by controlling the tension failure and tension hunting due to the material (strip) shape failure to prevent the shaking of the tension reel and pay-off reel and at the same time the slip phenomenon of the strip The present invention relates to a tension control device for a cold rolled coil, which can improve product quality and work efficiency by preventing oil.

Conventionally, as shown in FIG. 1, the upper and lower fixing rolls 1 and 2 are fixed to the lower and lower fixing rolls 1, 2, 12, 12, and 2. The strips 3 are contacted by a constant tension between the two bars, and the upper and lower base rolls 1 and 2 are driven according to the speed of the strip 3 to be advanced. Rolls 4 are assembled by bearings on both sides.

However, the conventional coil winding method of winding the coil from the entry payoff reel to the exit tension reel has the following problems.

First, since the tension of 1.8 ton is not fully adjusted (100%) during line operation, the payoff reel (5) and the tension reel are irregularly flowed, resulting in slip during winding of the strip (3) and strip (3). As a result, defects such as friction grooves were generated. Second, if the shape of the material (strip) itself is poor, the maximum fixing roll (1) cannot be adjusted at the upper side, and if one side shape is poor, the length of both edges of the strip (3) is increased. Despite the fact that the tension can be adjusted accordingly, there is no conventional control means such as the tension is excessively pushed toward one edge of the strip, so unreasonable problems such as reel flow such as hunting or slipping of the strip occur. Was being pointed out.

Therefore, the present invention was devised to solve this problem in consideration of the conventional problems, and an object of the present invention is to properly adjust tension defects and tension hunting caused by strip shape defects during operation in a cold rolled coil preparation line, and to shake the reel. And it is to provide a tension control device of the cold rolled coil that can improve the product quality and work efficiency by preventing the slip phenomenon of the strip causing friction grooves.

The present invention for achieving the above object is a base formed with bolt holes arranged at regular intervals on both sides to support the device, bolt holes are formed on both sides to be assembled by bolts in the bolt holes of the base, the cylinder A base block having a rod hole and a cylinder fixing bolt hole formed therein, a bearing block base consisting of a lower fixing roll fixedly installed at a lower portion of the base, and grooves having a predetermined depth are formed at both sides so that the base is inserted, and a cylinder rod is generally formed at the center portion An upper flow roll set consisting of an upper bearing block with a connecting ring, an upper flow roll installed between the upper bearing blocks, and a cylinder fixing bolt hole is formed, and inserted into the cylinder rod hole to be coupled to the cylinder rod connecting ring. Attach the cylinder rod, pressure gauge to set the pressure, and Characterized in that the cylinder body consisting of an air cylinder for adjusting the pressure to flow the upper flow roll set up and down.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

2 is an exploded perspective view of the present invention, and FIG. 3 is an exploded perspective view of the present invention, (a) is an exploded perspective view of the upper flow roll set of the present invention, (b) is an exploded perspective view of the bearing block base of the present invention, (c ) Is an exploded perspective view of the cylinder body of the present invention.

2 to 3, the present invention is a bearing block base 7 as shown in FIG. 3b and an upper flow roll bearing block of the upper flow roll set 8 as shown in FIG. 3a. 9) Assemble. That is, the sliding groove 12 having a predetermined depth so that the base 21 of the bearing block base 7 can be inserted into both sides of the upper flow roll bearing block 9 assembled on both sides of the upper flow roll 10. By forming the base 21 is assembled into the sliding groove 12 in the form.

The upper flow roll set 8 assembled in this way is to be firmly assembled without moving or moving left and right from the bearing block base 7.

In addition, the present invention inserts the cylinder rod 13 into the cylinder rod insertion hole 15 formed in the central portion of the base upper plate 14 with a predetermined diameter so that the cylinder fixing bolt hole 16 and the base upper plate 14 holes. The 14a and the holes 21a are bolted by the bolts 12b so that the cylinder fixing bolt holes 17 formed in engagement with the base 21 coincide with each other, and then tightened with the bolts 17a, and the upper flow roll set. The hole 18a formed in the cylinder rod fixture 18 of (8) and the hole 13b formed in the cylinder rod fastening fixture 19 are combined, but the cylinder rod 13 is easy to disassemble and assemble with the cylinder rod fixture 18. Fasten the cylinder rod fastening hole 13a formed in the lower part with the pin 18b.

In this way, the assembly of the upper flow roll set 8, the bearing block base 7, and the cylinder body 19 is completed.

The present invention assembled as described above, when the upper flow roll set 8 is moved up and down by using the pressure of the air cylinder 20, the sliding grooves 12 formed on both sides of the upper flow roll bearing block 9 is the base Sliding up and down along (21) the upper flow roll 10 is moved up and down, and the base 21 and the cylinder body 19 is fixed by bolting around the base upper plate 14 of the upper flow roll (10) Disassembly and assembly is easy at the time of replacement, and the cylinder rod fastener 13a and the cylinder rod fixture 18 formed at the lower portion of the cylinder rod 13 are fastened by the pins 18b.

In the cold rolled coil tension control device according to the present invention assembled as described above, as shown in FIG. 2, the crude rolled material (strip) is hung on the side payoff reel 5, and the strip 3 is flowed upward. After entering the roll 10, the coil is wound around the exit tension reel by passing through various rules and devices, and using the pressure of the air cylinder 20 according to the tension irregularity and the strip shape (roll buffering action) Since the flow roll set 8 flows up and down, the tension nonuniformity according to the shape defect of the strip 3 is adjusted suitably.

When working with a material having an extremely poor shape, the pressure gauge 22 pressure of the air cylinder 20 is set to be fluidly set according to the characteristics of the material so as to prevent tension hunting and slipping of the strip 3.

When the line is operated, the upper flow roll set 8 is driven by an idle according to the line speed (700 MPM) moving speed.

The present invention as described above, by adjusting the pressure gauge 22 pressure of the air cylinder 20 effectively and properly according to the characteristics of the material to adjust the tension failure and tension hunting according to the shape of the material to tension and reel the pay off reel and It prevents slipping of the strip, so there are advantages such as improving product quality and working efficiency.

Claims (3)

In a conventional case in which a bearing block base 7 is formed by installing a lower fixing roll 23 on a base 21 positioned to face each other, a cylinder rod jig 18 is disposed on the upper surface of each upper bearing block 9. Is formed, and sliding grooves 12 are formed at both ends, respectively, and the upper flow roll set 8 formed by installing the upper flow roll 10 is tightly fitted to the base 21 of the bearing block base 7. Then, the base upper plate 14 having the cylinder rod insertion hole 15 drilled in the center thereof is fastened to the upper bolt fastening hole 21a of each base 21, and the bolt 21b is fastened to the cylinder rod insertion hole 15. Insert the cylinder rod 20 of the cylinder body 19 to fasten the cylinder rod fastener 13a and the cylinder rod fixture 18 formed in the lower portion of the cylinder rod 20 to the upper flow roll set by the air cylinder 20 ( 8) the upper flow groove 10 can flow up and down by moving up and down To also tensioning of the cold rolled coils, characterized by. The method of claim 1, wherein the cylinder rod jig (18a) formed at the center of the upper surface of the upper flow roll bearing block (9) and the cylinder rod fastener (13a) formed at the lower portion of the cylinder rod (13) are mutually fastened. 18. The tension control of the cold rolled coil characterized in that the holes 18a and the holes 13b drilled in the cylinder rod fastening holes 13a are penetrated through the pins 18b to facilitate disassembly and coupling. Device. According to claim 1, wherein the pressure gauge 22 is formed on the upper side of the air cylinder 20 of the cylinder body 19, the pressure gauge 22 is characterized in that the pressure is set fluidly according to the characteristics of the material Cold rolled coil tension control device.