JPS6040599Y2 - Roll seal device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a new roll sealing device that is effective when applied to vacuum vapor deposition plating equipment for copper strips, rolls for sealing atmospheric gas used in continuous annealing furnaces, and the like.

In lines where copper strips are continuously subjected to treatments such as annealing and plating, it is necessary to maintain the pressure, temperature, and composition of the atmospheric gas in each chamber of the equipment at a constant level depending on the purpose, so there is no need for outside air to enter. Or, it is necessary to minimize the movement of gas between adjacent rooms, and for this purpose, a gas seal device is installed at the boundary, especially when there is a large pressure difference between the outside air or adjacent rooms. In such cases, a large amount of air enters through the gap at the boundary and there is a flow of atmospheric gas, which not only makes it difficult to maintain the atmospheric gas conditions, but also makes it difficult to replenish the gas.
There is a problem in that the capacity of the gas processing equipment for removal becomes large.

FIG. 1 shows an example of a conventionally used roll sealing device. In the figure, 1 is a copper strip, 2 is a pair of upper and lower sealing rolls, and the sealing rolls 2 are placed in adjacent chambers 4 and 5. 3 is a gap S on the back side of the seal roll 2 (the side opposite to the side in contact with the steel strip).
This is a clearance adjustment device for maintaining the clearance at the minimum level allowable for operation.

FIG. 2 is a sectional view taken along the line ■-■ in FIG. It is designed to rotate at a predetermined speed in the direction of.

Now, in FIG. 1, if the pressure in chamber 4 is P0, and the pressure in chamber 5 is P2, and if Pi>P2, then the atmospheric gas flows from chamber 4 to chamber 5 as Sl, S2, . S3 (Figure 2)
Flows through the gaps.

In this case, the gap S2. S3 is kept to the minimum allowable by the equipment configuration, but the gap area due to the gap S1 is determined by the thickness of the steel strip 1, the strip width W, and the length L of the seal roll 2.
It increases or decreases depending on the relationship with.

Further, the width W and thickness of the steel strip 1 that passes between the upper and lower seal rolls 2 are determined depending on the intended use of the product.

To give an example of an actual machine, the range of plate width W: 610 to 127
- Plate thickness range: 0.3 to 1.61rgIL seal roll length L: 1630mm If the plate width W is narrow, the gap length L-
W) increases, and the amount of gas flowing through the side gap S1 of the steel strip 1 increases.

Although not shown in FIGS. 1 and 2, a device for adjusting the distance between the centers of the upper and lower seal rolls 2 in accordance with variations in the thickness of the steel strip 1 is visible.

The present invention was proposed for the purpose of reducing the amount of gas flowing through the gap S1 on both sides of the steel strip 1.
The gist of this is that sealing metal fittings movable in a direction perpendicular to the running line of the copper strip are arranged near both end faces of the copper strip, and a pair of upper and lower guide fittings are provided to serve as guides and seals for the sealing metal fittings. and a means for moving the sealing hardware. With this configuration, the present invention makes it possible to minimize gas leakage at the side end face of the copper strip, and stabilize the indoor atmospheric pressure. At the same time, it is possible to reduce the capacity of gas processing equipment, thereby reducing costs.

Hereinafter, the present invention will be explained in detail with reference to the embodiments shown in FIGS. 3 and 4.

In FIGS. 3 and 4, 101 is a steel strip, 102 is a pair of upper and lower seal rolls, 103 is a casing, and 104 is behind or in front of the seal roll 102 with respect to the traveling direction of the steel strip 101 (the example shown is the rear A pair of left and right seal fittings (see FIG. 4) 105 are guide members for the seal fittings 104, and are integrally formed with the casing 103.

4A and 4B, reference numeral 106 denotes a guide shaft having approximately the same diameter as the height of each seal hardware 104, and is fixed to the seal hardware 104. The guide shaft 106 and the seal hardware 104 are attached to the casing 103. By operating the installed hydraulic cylinder 107, the steel strip 101 can be moved in a direction perpendicular to the running line.

Reference numeral 108 denotes a non-contact type meandering detector disposed at a suitable location on the upstream side of the running line of the copper strip 101, and 109 denotes an edge controller that operates the fluid pressure cylinder 107 in response to a detection signal from the detector 108. are arranged in the illustrated arrangement to constitute the roll seal device of the present invention.

One embodiment of the device of the present invention is constructed as described above, and as shown in FIG. Even when meandering, the inner surfaces of both seal fittings 10 are connected to the steel strip 101.
It is necessary to maintain a distance that does not make contact with both end surfaces of the steel strip 10. In this case, in a conventional device without seal hardware, the steel strip 10
1 and the casing 103, in the present invention, the gap can be reduced to a by the both seal fittings 104, so the gap area at both end surfaces of the steel strip 101 is smaller than that of the conventional one. This is significantly reduced compared to the previous year.

Gas leakage from the gap is therefore reduced.

The meandering detector 108 detects the amount of meandering of the steel strip 101, and the edge controller 10 operates based on the detection signal of the meandering detector 108.
9, a steering roll (not shown) is actuated, and each hydraulic cylinder 107 is actuated to move both seal fittings 104 in a direction perpendicular to the running line of the steel strip 101, and the distance a can be changed as appropriate.

Furthermore, the gas leaks 1 and 1' shown in FIG. 4B can be reduced by bringing the seal roll 102 and the seal hardware guide member 105 into contact with each other or by slightly separating them from each other.

Furthermore, gas leakage can be reduced by creating a slight gap between the sealing hardware guide member 105 and the sealing hardware 104 when these members come into contact with each other.

Further, the gas leaks 2, 2' shown in FIG. 4B can be further reduced by designing the sealing hardware 104 and the sealing roll 102 to be slightly separated from each other.

Moreover, gas leaks 3 and 3' can be completely eliminated by sealing between the seal guide shaft 106 and the casing 103 with an O-ring or the like.

Furthermore, by making the shaft diameter of the seal guide shaft 106 almost the same as the height of the seal hardware 104 as described above, gas leaks 4 and 4' passing between the seal hardware guide member 105 and the seal guide shaft 106 can be prevented. It can be reduced.

As described above, by extremely reducing gas leakage before and after the upper and lower seal rolls 102, the pressure difference in the casing chamber before and after the seal rolls can be maintained.

FIG. 5 is a graph showing the difference in clearance area between the roll seal device according to the present invention and the conventional roll seal device. are shown respectively.

Moreover, the upper and lower seal rolls 102 have a plate thickness t=0.3 m.
From m to t=0.8mm, the same graph shows ■
It was assumed that the state would gradually transition from (1) to (2).

In addition, as an example of the actual machine used for calculation, the seal roll length L = 163oTIr! fL copper band width (minimum) W
= 6101ran Distance a (Figure 4A) = 10o1Mt This is a graph showing the relationship between the steel strip thickness t and the clearance area.For example, when the plate thickness is 1.2WIt, the conventional one is 20. 4CF+! In contrast, in the case of the present invention, it is 9.9C71! , so the flow rate of leakage gas is
It turns out that it can be reduced to about 1/2.

Since the present invention has the above configuration 9 effects, the present invention has the practical effect of realizing a roll sealing device that can easily achieve the above object.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIGS. 1 and 2 are schematic illustrations of an example of a conventional device.
Figure 1 is a longitudinal sectional view, Figure 2 is a sectional view taken along the line ■-■ in Figure 1,
Figures 3 and 4 are schematic explanatory diagrams of one embodiment of the present invention,
3 and 4 are longitudinal sectional views, and FIG. 5 shows the device of the present invention,
It is a graph showing the difference in clearance area with a conventional device. In Fig. 3 A, B and Fig. 4 A, B, 101... steel strip, 102... seal roll, 103... casing, 104...
... Seal hardware, 105... Guide for seal hardware, 106... Guide shaft, 107...
Air cylinder, 108...Non-contact meandering detector, 109...Edge controller.

Claims (1)

[Scope of utility model registration request] A pair of upper and lower seal rolls sandwiching a copper strip running in a predetermined direction, and a pair of seal metal fittings disposed close to both end surfaces of the copper strip and movable in a direction perpendicular to the running line of the copper strip. , a pair of upper and lower seal hardware guide members disposed in contact with the seal hardware and integrally formed with the casing;
and a means for moving the pair of seal hardware.