KR200278283Y1 - Easy to replace sink roll mounting structure - Google Patents

Abstract

The present invention relates to an easily replaceable sink roll mounting structure for transporting a steel sheet while rotating while being wound in a solution in a tank,

Both side rotating shafts 10 of the sink roll 3 have a rotating side plate 13 which is positioned inside the tank 2 while having an outer diameter smaller than the diameter of the hole 2a, and an outer diameter larger than the diameter of the hole 2a. Rotating side plate 13 'which is formed to be positioned outside the tank 2 is integrally formed, and the' c 'opened to the outer side plate 13' side in the tank 2 of the portion where the hole 2a is formed. The magnetic rings 16 and 16 'are fixed, and each of the rings 16 and 16' can be supplied with high pressure air through a pipe having a pressure gauge 20 and a pressure regulating valve 21. Tubular rings (14, 14 ') are built-in, and the outer side of the ring (16) and (16') tubular rings (14, 14 ') outside by surface contact with the rotating side plates (13) (13'). Characterized in that the sealing rings 15, 15 'are fitted to prevent leakage of the solution,

Installation and exchange can be made quickly and easily while effectively preventing the solution from leaking from the sink roll mounting portion.

Description

Easy to replace sink roll mounting structure

The present invention relates to a sink roll mounting structure for transporting a steel sheet while rotating in a state wound in a solution in a tank. More specifically, the installation and replacement are quick and effective while preventing the solution from leaking from the sink roll mounting portion. The present invention relates to an easily replaceable sink roll mounting structure.

In the conventional sink roll mounting structure, as illustrated schematically in FIGS. 4 and 5, the sink roll (1) is installed so that the solution (1) is filled and maintained in the tank (2) to a certain height, and immersed in the solution ( 3) is rotatably mounted on the tank 2 and is used for conveying steel sheets. The shaft 10 of the sink roll 3 extends a predetermined length to the outside through the tank 2, respectively, the end of the extended shaft 10 is rotated to the support 11 via the bearing (4) It is mounted as possible. Sealing means (7) is provided to prevent the solution (1) from leaking out of the tank (2), the sealing means (7), the shaft (10) via a plurality of bolts (5) A fixed side plate 6 fixed to the tank 2 of the portion to penetrate therethrough and having a hole formed therein so as to penetrate the shaft 10 at a central portion thereof, and fixed to the outside in a shape extending integrally from the center hole of the fixed side plate 6. The stretched rubber 8 is formed to have a length to enclose the shaft 10, and is formed at the end of the stretched rubber 8 to maintain a state of being in close contact with the outer surface of the shaft 10 so that the solution 1 It consists of a solution sealing portion 9 of carbon or ceramic material to prevent leakage.

That is, the sink roll 3 rotates in a state in which the solution 1 in the tank 2 is prevented from leaking to the outside by the solution sealing portion 9 of the sealing means 7 and is responsible for conveying the steel sheet or the like. will be.

However, this sink roll mounting structure according to the prior art requires a considerable time for the replacement operation of the sink roll 3, which is first fixed to the side plate 6 to disassemble and replace the sink roll 3 tank (2) (12) indicates the direction in which the sink roll 3 is removed from the tank 2, in this case a plurality (eg, the outer diameter of the sink roll 3 is 1000). In the case of mm, it takes a considerable time to take out and refasten 20 or more bolts 5 to each of the fixed side plates 6, and the mounting state of the sealing means 7, in particular the solution sealing part 9 is very precise. It should be done to prevent the solution leakage in that part because this work is done very carefully by a trained worker was not only to reduce the work efficiency but also had the problem of lowering the operation efficiency of the facility.

The present invention is to solve such a conventional problem, by changing the structure of mounting the sink roll in the tank is very easy to disassembly and exchange, shorten the time and the sealing effect is improved to maintain the operation of the equipment It is an object of the present invention to provide an easy exchangeable sink roll mounting structure to improve efficiency.

1 is a schematic configuration diagram showing a sink roll mounting state by the easy-to-change sink roll mounting structure according to the present invention;

Figures 2a and 2b is a detailed cross-sectional view showing 'A' and 'A' portion of Figure 1, respectively

Figure 3 is a side view of Figure 1

Figure 4 is a schematic configuration diagram showing a sink roll mounting state according to the prior art

5 is a side view of FIG. 4.

Explanation of symbols on the main parts of the drawings

1 ... solution

2 ... tank

2a ... hole

3 ... sink roll

10 ... axis

13,13 '... rotating shroud

14,14 '... telescopic tubular ring

15,15 '... sealing

16,16 '... ring

20 ... pressure gauge

21 ... pressure regulating valve

The present invention as a technical configuration for achieving the above object,

The shaft of the sink roll installed to be immersed in the solution of the tank extends through the tank to the outside so as to be rotatably mounted to the support via a bearing, and having a sealing means at the tank penetration portion of the shaft to prevent leakage of the solution, In the sink roll mounting structure for allowing the sink roll to be removed and remounted to the outside through the hole of the tank,

Both side rotation shafts of the sink roll are integrally formed with a rotating side plate having an outer diameter smaller than the diameter of the hole and being positioned inside the tank, and a rotating side plate having an outer diameter larger than the diameter of the hole and being positioned outside the tank. The 'c' shaped ring opened to the outer side of the rotating side plate is fixed to the tank where the hole is formed, and each of the rings has a flexible tube type ring through which a high pressure air can be supplied through a pipe having a pressure gauge and a pressure control valve. And a seal ring fitted to the outer side of the flexible tubular ring of the ring to prevent leakage of the solution by surface contact with the rotating side plate.

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

Figure 1 is an overall configuration showing the easy to replace the sink roll mounting structure according to the present invention, Figures 2a and 2b is a detailed view of the portion A and A 'of Figure 1, Figure 3 is a line BB of Figure 1 As viewed from the side, the shaft 10 of the sink roll 3 installed so as to be immersed in the solution 1 of the tank 2 extends through the tank 2 to the outside to support the support 11 via the bearing 4. Is rotatably mounted and has a sealing structure similar to the conventional one, provided with sealing means to prevent the solution 1 from leaking out of the tank 2 to the outside.

The sealing means 23 and 23 'of the present invention have a slightly modified structure having the same technical idea on one end side and the other end side of the end of the sink roll 3, and the same with respect to one end side and the other end side. The same reference numerals are given to structures having a shape, and a slightly modified structure is assigned a symbol to the left structure of FIG. .

A tank having a diameter larger than the outer diameter of the sink roll 3 to be used as a passage for removing the sink roll 3 to the outside while penetrating the shaft 10 and extending outwardly. In each of the holes 2a formed in (2), fixed side plates 6 and 6 'are fixed by a plurality of bolts 17, and these fixed side plates 6 and 6' are used to fix the holes 2a. It is mounted so as to be enclosed from the outside, and each of the fixed side plate (6) (6 ') is open to the direction (direction indicated by the arrow 12) side for removing the sink roll 3 from the tank (2) A ring 16, 16 'of a cross section is fixed integrally. Here, a ring 16 is attached to the left fixed side plate 6 on the inner surface side of the tank 2 and a ring 16 'to the right fixed side plate 6' on the outer surface side of the tank 2. ) Is attached, the outer diameter of the left ring 16 is formed smaller than the inner diameter of the hole (2a) while the inner diameter of the right ring 16 'is formed larger than the inner diameter of the hole (2a)

In addition, the rings 16 and 16 ′ have elastic tube-shaped rings 14 and 14 ′, and the rings 14 and 14 ′ have compressed air through a pipe 18 and a hose 19. And the compressed air pressure in the rings 14 and 14 'is adjustable by the pressure gauge 20 and the pressure regulating valve 21.

In addition, by inserting a seal ring (15, 15 ') made of a material such as Teflon, rubber, carbon, or ceramic through the open side of the ring (16, 16'), the flexible tube-shaped ring When compressed air is supplied to and expands (14) and (14 '), the seal rings (15) and (15') are moved in the direction of being pushed outward.

In addition, the disc-shaped rotary side plates 13 and 13 'are integrally fixed to the shaft 10 of the sink roll 3, and the left rotary side plate 13 has an outer diameter of the inner diameter of the hole 2a. While forming smaller than the size, the left side is in close contact with the end surface of the seal ring 15 to have a sealing effect, and the right side plate 13 'has an outer diameter larger than the inner diameter of the hole 2a. The left side is in close contact with the end surface of the seal ring 15 'to have a sealing effect.

Here, the rotating side plate 13, 13 'is the contact surface with the seal ring 15, 15' is coated with a hard chromium (Cr) to an appropriate thickness (for example, 0.05mm) or hard ceramic or its It is preferable to coat with an outer material.

That is, when high pressure air is supplied to each of the rings 14 and 14 'of the sealing means 23 and 23' provided at both ends of the sink roll 3 supported by the bearing 11 so as to be rotatable. The rings 14, 14 ′ expand and closely seal the seal rings 15, 15 ′ to the rotating side plates 13, 13 ′, and the rotating side plates 13 which behave integrally with the sink roll 3. 13) rotates while being kept in close contact with the seal rings 15 and 15 ', the leakage of the solution 1 in the tank 2 through the portion is effectively prevented.

In addition, the close contact state of the seal rings 15, 15 'and the rotating side plates 13, 13' is made very simply by adjusting the pressure of the air supplied into the rings 14, 14 '. Even non-skilled personnel can operate the equipment stably while preventing the leakage of solution.

In order to remove the sink roll 3 to the outside of the tank 2, the bearing 4 is removed from the support 11, and then the sink roll 3 is moved in the direction of the arrow 12 of FIG. 1. In this case, it is possible to omit the process of removing the fixed side plate 6 from the tank 2 after removing a number of bolts 5 as in the prior art, so that the sink roll 3 can be removed in a short time. In addition, when the sink roll 3 is mounted again, the mounting work can be performed quickly by the reverse order of the above, and in particular, the sealing rings 15, 15 'and the rotating side plates 13, 13'. ) Is very simple by adjusting the pressure of the air supplied into the ring (14, 14 ').

The inventors of the present invention have an electroplating line in which the solution 1 is filled with 10 m 3 and the outer diameter of the sink roll 3 is 1000 mm in order to test the solution sealing effect by the sink roll mounting structure according to the present invention. The center outer diameter d of the left rotating side plate 13 and the right rotating side plate 13 'is 770 mm and 1220 mm, respectively, and the cross-sectional width and the height of the rings 14 and 14' are 20 mm, respectively. It is possible to expand up to 27 mm in the state, and the cross-section width and height of the seal rings 15 and 15 'are each 20 mm, and compressed air is supplied to the rings 14 and 14' to seal the ring. The outer ends of the (15) and 15 'were allowed to protrude 7 mm out of the ends of the rings 16 and 16'.

Then, the interval between the rotation side plate 13, 13 'and the seal ring 15, 15' of the sink roll 3 in the state in which compressed air is not supplied to the rings 14, 14 'is 2 ~. After assembling so as to be 3 mm, compressed air was supplied to the rings 14 and 14 'to seal the sealing rings 15 and 15' to the rotating side plates 13 and 13 '.

In this state, while maintaining the rotational speed of the sink roll 3 at 60 RPM while gradually increasing the pressure of the compressed air supplied to the rings 14 and 14 ', the rotating side plates 13, 13' and the seal ring 15 The degree of leakage of the solution through (15 ') was tested.

As a result, the leakage amount was 1.0 l / hour when the pressure was 1.2 kg / cm2 in the left sealing part, and the leakage amount was 0 l / hour when the pressure was 1.6 kg / cm2, and the leakage amount was 1.2 kg / cm2 in the right sealing part. At 3.21 l / hr, the pressure was 1.6 kg / cm2, the leak rate was 2.8 l / hr, when the pressure was 1.8 kg / cm2, the leak rate was 2.01 l / hr, and the pressure was 2.0 l / hr. . In other words, it was found that when the compressed air pressure of the rings 14 and 14 'is set to an appropriate level or more, the rotation state of the sink roll 3 can be stably maintained in a state where there is no leakage of the solution.

On the other hand, although not shown, the current value of the drive motor mounted for the supply of compressed air varies depending on the pressure of the compressed air from 7.0 to 9.0A with respect to the rated 3.7kA and 14.5A, but the contact resistance of the seal is very small. Sealing action was possible.

As described above, according to the easy-to-exchange sink roll mounting structure according to the present invention, the sink roll can be disassembled from the tank to replace the sink roll and then mounted on the tank by only removing a few bolts and combining them. The change is made very quickly.

Next, since the adhesion state of the portion in charge of the solution sealing can be performed simply and accurately by adjusting only the pressure of the supplied air, the sink roll exchange operation is made easy even by an inexperienced person.

Next, since it is sufficient to keep the pressure of the air supplied with the solution seal only in an appropriate state or more, it is possible to stably operate the equipment while preventing the leakage of the solution effectively.

Claims (1)

The shaft 10 of the sink roll 3 installed to be immersed in the solution 1 of the tank 2 extends outwardly through the tank 2 so that the support 11 is rotatable to the support 11 via the bearing 4. Mounted, having a sealing means in the penetrating portion of the tank 2 of the shaft 10 to prevent leakage of the solution, and the sink roll 3 is removed to the outside through the hole 2a of the tank 2; In the sink roll mounting structure to be mounted again, Both side rotating shafts 10 of the sink roll 3 have an outer diameter smaller than the diameter of the hole 2a and a rotation side plate 13 positioned inside the tank 2 and larger than the diameter of the hole 2a. Rotating side plate 13 'having an outer diameter and positioned to be positioned outside the tank 2 is integrally formed, and the tank 2 of the portion where the hole 2a is formed is opened to the outer side plate 13' side. The c-shaped rings 16 and 16 'are fixed, and each of the rings 16 and 16' can be supplied with high pressure air through a pipe having a pressure gauge 20 and a pressure regulating valve 21. A flexible tubular ring (14, 14 ') and a surface contact with the rotating side plates (13) and (13') outside the flexible tubular ring (14, 14 ') of the rings (16) and (16'). And a seal ring (15) (15 ') which is adapted to prevent leakage of the solution by the fitting.