CN85105838A - The production milled sheet continuous cleaning and the lubricating arrangement＜del/ of rolling mill roll 〉 - Google Patents

Abstract

What the present invention relates to is that milling material is not polluted by employed lubricant about the continuous cleaning and the lubricating arrangement of production milled sheet with rolling mill roll; All can use in hot rolling with when cold rolling, be specially adapted to the rolling of aluminium and aluminium alloy.The shape of housing is the common parallelepiped that an one side is opened, and is circular arc against the edge of two opposite flanks of opening, and the semidiameter of circular arc is few identical with the radius of roll.By means of a continuous resilient Gask-O-Seal, housing is close on the roll.Revolving brush is housed in the housing, and housing passes through the circulation filling lubricating oil of lubricating oil, and is in negative pressure state.

Description

The production milled sheet continuous cleaning and the lubricating arrangement＜del/ of rolling mill roll 〉

What the present invention relates to is continuous cleaning and the lubricating arrangement of production milled sheet with rolling mill roll, and employed lubricant does not pollute milled sheet; It can be used for the hot rolling of metallurgic product or cold rolling, is specially adapted to the rolling of aluminium and aluminium alloy.

As everyone knows, when hot rolling or cold rolling aluminium and aluminium alloy, the surface state of its product is subjected to the influence of the surface state and the lubricating condition of roll.Usually when rolling, because in the operation of rolling or processing procedure afterwards, in annealing process, be difficult to satisfactory owing to the residue of lubricant forms the surface state that stain makes product on product.

These defectives are only carried out for a long time, wasteful cleaning and (or) extra process of degreasing (before heat treatment) eliminates.

Continuous cleaning and the lubricating arrangement as the roll of object of the present invention narrated below using have just solved these difficulties.

For convenience of description, suppose roll mandrel to being level, normal conditions also always like this.

On every roll, at outlet side, pressing the housing of the common parallelepiped shape that an one side opens, the edge, two opposite flanks of adjacent openings is circular arc, and the semidiameter of circular arc seldom equals the radius of work roll; The edge of opening is equipped with continuous elastic ring sealing gasket.Each housing is pressed on the corresponding roll by pneumatic helical strut or suitable other instrument (as spring etc.).Therefore, by housing, the space that its Gask-O-Seal and corresponding roll constitute be sealing with sealing.

In these lower part of frame, arrange two rotary brush (on each shell 1), brush parallels with work roll, and contacts with roll, and preferably these brushes are with the unidirectional continuous rotation of identical speed, with the switched in opposite of roll.

The axle of brush rotates by the chain that is driven by motor.Whole transmission device is connected on the motor, and this device is placed in the chest that seal washer commonly used is housed.In each housing, by 1 or several nozzle (for example 3,1 at center, 2 of sides), in the eminence of all rolls, the same bus place near roll distributes with lubricator rolling.These nozzles guarantee the splash system lubrication of work roll; Then, lubricant is recycled to the bottom of housing, by pump they is taken away, and liquid level determines that by the height of liquid back pipe (1 or several) liquid level can make brush be immersed near its pivot center in liquid.

Return liquid and guarantee, so that form negative pressure in the housing by displacement pump; Lubricant can drain on the product by accidental Vent when the ring packing of housing is lined with local damage or local imperfection is arranged with regard to avoiding like this.

Usually, the service condition (characteristic and speed that brush rotate, flow of lubricant, negative pressure) of two housings on roll all is the same.

The cross section of Gask-O-Seal has important effect.It is confirmed as continuous, should be the convex cylindrical surface along the bus of roll, and two vertical cross-sections along roll are the corresponding annular cross section.

The housing breaker roll is sealed fully.

For understanding the present invention better, now, illustrate with figure by following Example:

Fig. 1: the vertical section of device

Fig. 2: the cross sectional dimensions of sealing gasket

(2a, 2b) product of (diameter 600mm) arrival end rolls into rolling band (3) at last to enter the double-roll rolling mill work roll.(4a 4b) is positioned at the outlet side of roll, and under the effect of spiral strut (not shown), housing is pressed on the roll by Gask-O-Seal (5) for two housings.In each housing, and the steel rotating brush that two diameters are arranged is 150mm (6a, 6b), by motor drives, to press the arrow direction and rotate, its rotating speed is 750 rev/mins, be pressed on the roll by two pneumatic helical strut (not shown)s, the spiral strut is supported on the rear wall of housing.

With 10 meters ³/ hour speed supply with 3 nozzles of emulsus lubricant (7a 7b) be positioned at the upper part of housing.(8a 8b) reclaims emulsion, adjusts supply pump and reclaims the flow of pump (not shown), and (9a 9b) indicates the negative pressure of 10～20KPa so that be installed in vacuum meter on the housing by discharge pipe.

Certainly, when roll wore and tore continuously, its diameter can reduce, and the radius of housing is adapted to the vary in diameter of roll, and variable quantity is 6mm.

The material of Gask-O-Seal (5) is a kind of acrylonitrile-butadiene rubber, and its vertical section and size are seen Fig. 2.

The sealing pad is gluedd joint by two sections straight line portioies and two fan-shaped parts and forms together.

In the present example, rolling condition is as follows:

-A5 bandwidth: 1000 millimeters

-mill speed (outlet): 50 meters/minute

-metal inlet temperature: 450 ℃

-import thickness: 7.5 millimeters

-exit thickness: 3 millimeters

Claims (7)

1, be used for the production milled sheet rolling mill roll (this device comprises for 2a, lubricated and brush device for cleaning 2b):

-2 seal casinghousings (4a, 4b), each housing borrows Gask-O-Seal (5) to be close on the work roll,

-on each housing, have at least a lubricant feed tube (7a, 7b) and discharging tube (8a, 8b),

-2 revolving brush (6a 6b) contacts with roll, and the axle of brush is parallel to the axle of roll, and is positioned at housing,

Be characterized in that (8a, 8b) (6a, turning cylinder 6b) is on the sustained height discharging tube (every or all roots) for similar and each brush.

2, the device of making according to claim 1 is characterized in: form by 1 of housing top or several nozzle by being positioned at for the inlet of lubricant, and the end of nozzle is distributed near the same bus of roll.

3, the device of making according to claim 1 is characterized in: the live part of Gask-O-Seal (5), be the dome cylindricality along the roll bus, and be corresponding annular along the vertical cross-section of roll.

4, according to the use of the device of claim 1～3, be characterized in: in the operation of rolling, brush rotates continuously with single direction.

5, according to the use of the device of claim 4, be characterized in: brush rotates with same angular speed.

6, according to the use of the device of claim 4 or 5, be characterized in: the rotation of each brush and the direction of rotation of corresponding roll.

7, according to the use of the device of claim 1～6, be characterized in: form negative pressure in the housing.

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