JPS632163Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for removing moisture adhering to a metal strip by passing it through a water cooling bath.

Conventionally, a device as shown in FIG. 1 has been used to remove water droplets adhering to metal strips on a continuous line. In the figure, a is a water-cooled tank, b is a deflector roll supported in the water-cooled tank, c is a metal strip, and d and d are ringer rolls installed to sandwich the metal strip C, which pass through the water-cooled tank A. In particular, moisture adhering to the metal strip c is wiped off by passing between ringer rolls d and d. However, this device uses a relatively thick metal strip (approximately 0.3 mm).
However, thin metal strips cannot be used because they may wrinkle or meander when sandwiched between ringer rolls, resulting in poor quality. Ta.

Another common method is to dry the metal strip with hot air using a hair dryer.
Thin metal strips have the disadvantage that they flap due to wind pressure, causing scratches on the surface or thermal distortion.

The present invention aims to eliminate the above-mentioned drawbacks and provide a water removal device that can be applied even to thin metal strips. At least a pair of guide rolls, each consisting of a cylinder connected to a vacuum pump, are supported in parallel at a predetermined interval, and metal strips are threaded through each guide roll in a staggered manner, and the metal strips are alternately applied to one side. The air chambers are brought into contact with each guide roll, and the air chambers are opposed to each other with a metal strip sandwiched between the guide rolls, and compressed air is blown out from a slit-shaped outlet formed in each air chamber toward the center of rotation of the guide roll. It is characterized by:

An embodiment of the present invention will be described below with reference to FIGS. 2 to 5. In the figure, 1 is a water cooling tank, 2 is a deflector roll, 3 is a metal strip, 4a, 4
5a and 5b are air chambers arranged to face each guide roll, and the air chamber has a slit-like blower along the axial direction of the guide roll. Outlets 6a and 6b are formed, respectively, and compressed air is blown out from the outlets toward the center of rotation of the guide roll. The metal strip 3 led out from the water cooling tank 1 is transferred so as to weave through the guide rolls 4a and 4b, first passing between the guide roll 4a and the air chamber 5a so that one side of the metal strip comes into contact with the guide roll 4a, and then The other surface contacts the guide roll 4b by passing between the guide roll 4b and the air chamber 5b. Guide roll 4
In this embodiment, a and 4b are a large number of through holes 7 in the hollow cylinder 6, as shown in detail in FIGS. 4 and 5.
The outer periphery of the hollow cylinder is covered with a fiber material 8 made of overlapping non-woven fabrics, one end of the hollow cylinder 6 is closed by fitting a rotating shaft 9, and the other end is closed with a rotating shaft 10. The rotary shaft 10 and a vacuum pump (not shown) are connected by fitting, and the inside of the hollow cylinder 6 is communicated with the vacuum pump. Reference numeral 11 indicates a nut member that fixes the fiber material 8 to the outer periphery of the hollow cylinder 6.

In the moisture removal device configured in this way, the compressed air is blown toward the center of rotation of the guide rolls 4a and 4b while being in contact with the guide rolls, so even if the air is blown at high wind pressure, the metal strip 3
The water droplets adhering to the surface of the metal strip 3 are blown away by the wind pressure without flapping.
In addition, moisture is adsorbed by the fiber material 8 on the surface that contacts the guide rolls 4a and 4b, and the interior of the hollow cylinder 6 is in a reduced pressure state due to suction by the vacuum pump, so the fiber material 8
The moisture adsorbed in the hollow cylinder 6 is sucked into the hollow cylinder 6 through the through hole 7. Therefore, the fibrous material 8 can always maintain its surface in a near-dry state without retaining a large amount of moisture, and can adsorb moisture at any time.

In this way, the moisture removal device of the present invention, unlike the conventional method of removing moisture using the clamping pressure of a ringer roll, can remove moisture even from thin metal strips without causing wrinkles or meandering, and unlike drying with a dryer. There is no chance that the metal strip will flap and cause scratches.

As explained in the embodiments above, the moisture removal device of the present invention can remove moisture adhering to the surface of a metal strip without impairing the quality of the strip, so it can easily cope with thinning of the metal strip. . Furthermore, since the structure is simple, it can be easily installed in a metal strip processing line, and the equipment cost is low, among other advantages.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a conventional moisture removal device, FIG. 2 is a schematic diagram showing an embodiment of the moisture removal device according to the present invention, FIG. 3 is a perspective view of the main part of FIG. The figure is a longitudinal cross-sectional view of the guide roll, and Figure 5 is the X in Figure 4.
- It is an X-ray sectional view. 3... Metal strip, 4a, 4b... Guide roll, 5a, 5b... Air chamber, 6...
Hollow tube, 7...through hole, 8...fiber material.

Claims (1)

[Scope of utility model registration request] A hollow cylinder whose surface is covered with a fiber material has a large number of through holes, and the hollow cylinder is connected to a vacuum pump.At least a pair of guide rolls are supported in parallel at a predetermined interval, and each of the guide rolls is The metal strips are threaded through the guide rolls in a staggered manner, and the metal strips are brought into contact with each of the guide rolls alternately on one side, and the air chambers are opposed to each other with the metal strips sandwiched between the guide rolls, A water removal device for a metal strip characterized by blowing out compressed air from a formed slit-like outlet toward the center of rotation of a guide roll.