JPS5950914B2 - Liquid removal device for metal strips, etc. - Google Patents

Description

[Detailed description of the invention] The present invention relates to a liquid removal device such as a metal band.

In the cold rolling and refining process of metal strips, processing such as pickling, cold rolling, polishing, and degreasing is performed, and liquids such as oil, acid solution, alkaline solution, and water are used during this processing. .

If these liquids remain attached to the metal strip, they not only interfere with the next process, but also, in the case of expensive processing liquids, the amount of liquid that adheres and flows out increases the amount consumed, which increases processing costs. .

As a measure to prevent treatment liquid from adhering to the metal strip,
Conventionally, a metal band is sandwiched between a pair of rubber lining curls,
A method is used in which the adhering liquid is squeezed out by pressing a rubber lining roll against the metal band.

This conventional method has the disadvantage that the liquid cannot be squeezed out unless the rubber lining roll is pressed against the metal band at a considerably high pressure. The liquid gradually accumulates at the part of the rubber-lined roll which is provided with the rubber lining 12 and begins to come into contact with the metal band 13, and the accumulated liquid flows out from both sides of the metal band, reducing the squeezing effect.

Furthermore, when foreign matter gets between the rubber lining roll and the metal band, the metal band and the rubber lining roll are damaged by the strong pressing force.

Any flaws in the rubber lining roll will reduce the squeezing effect.

Furthermore, since the ends of the metal strips have sharp edges, the ribbon lining roll is constantly scratched by these edges, which gradually deteriorates the squeezing effect.In order to improve the squeezing effect, the pressing force must be increased. As the pressing force increases, more and more flaws occur, a vicious cycle that is repeated and shortens the life of the rubber lining roll.

Rubber lining rolls need to be replaced when the squeezing effect has deteriorated to the point where they are no longer effective. Conventionally, recombination requires a considerable amount of time, and the production line has to be shut down accordingly, resulting in very large losses due to production halts.

An object of the present invention is to provide a liquid removal device such as a metal band which eliminates the above-mentioned conventional drawbacks.

The present invention has achieved the above-mentioned object by a pair of presser rolls placed on both sides of a running metal band, a tension roll placed apart from the metal band, and at least one presser roll wound around the presser roll and the tension roll. This device has two endless liquid-absorbing belts, a re-roll for pressing the liquid-absorbing belt against a tension roll, and a drip pan for receiving the squeezed liquid, so that the liquid-absorbing belt is in almost linear contact with a metal band. Achieved by

The details of the present invention will be explained with reference to the drawings.

In FIG. 2, presser rolls 2 and 3 made of iron rolls are arranged on both sides of the metal strip 1, and a liquid-absorbing belt 4 is wound around the presser rolls 2 and 3, respectively.

One side of the liquid absorbing belt is wound around a tension roll 5 and tension is applied thereto.

A squeezing roll 6 is pressed against the tension roll 5, and the liquid absorbing belt 4 is squeezed between the tension roll 5 and the reroll 6.

Drip pants are provided below the squeeze roll 6 to receive the liquid squeezed out from the liquid absorption belt 4.

The liquid absorbent belt 4 is formed as an endless belt and is pressed against the metal band 1 by presser rolls 2 and 3.

Therefore, as the metal band 1 advances, the liquid adhering to the metal band 1 is successively absorbed by the liquid absorbing belt 4.

The sucked liquid is squeezed out from the liquid-absorbing belt 4 by the pressure between the squeezing roll 6 and the tension roll 5, so the liquid-absorbing belt 4 is always in a state where the liquid has been squeezed out when it comes into contact with the metal band 1. Therefore, the absorption capacity is maintained at a high level.

Therefore, the liquid adhering to the metal band 1 is completely absorbed by the liquid absorbing belt 4, and hardly any liquid remains on the metal band 1.

The liquid-absorbing belt 4 is made of a material with good liquid-absorbing properties, such as felt or lined felt.

Since a material with good liquid absorption properties is used, the liquid absorption belt 4 is made of a metal band 1.
There is no need to press the metal strip too strongly, and therefore there is less possibility of scratches on the metal strip or belt caused by foreign matter, improving the yield of the metal strip.

In addition, the liquid absorption belt does not have to be replaced frequently because its lifespan is not shortened due to flaws.

There is no need to change rolls when replacing belts, and only the belt needs to be reassembled, so replacement time is short, and line down time can be greatly reduced.

Therefore, factors that inhibit productivity can be removed, and this is particularly effective for lines that suffer from large heat losses due to shutdowns, such as annealing lines.

Since the liquid absorbed from the metal band can be drawn out from the liquid absorption belt and collected in the drip pan, there is less wasteful consumption of expensive processing liquid.

In the figure, the tension roll and the squeezing roll are arranged on the entrance side of the metal strip, but of course the tension roll and the squeezing roll are not limited to this, and it is also possible to arrange them on the exit side.

[Brief explanation of drawings]

FIG. 1 is an explanatory view showing an apparatus using a conventional rubber-lined roll, and FIG. 2 is an explanatory cross-sectional view of an apparatus according to the present invention. 1... Metal band, 2, 3... Presser roll, 4... Liquid absorbing belt, 5... Tension roll, 6... Shibori roll, 7...
・Drip pan.

Claims (1)

[Claims] 1. A pair of presser rolls placed on both sides of a running metal band, and at least one endless liquid-absorbing belt wrapped around at least one of the presser rolls and a tension roll placed away from the metal band. and a squeeze roll that presses the liquid absorption belt against the tension roll, and a drip pan that receives the liquid squeezed out from the liquid absorption belt,
A liquid removal device for a metal band, characterized in that the liquid absorption belt is arranged so as to be in approximately line contact with the metal band.