RU2287393C1 - Mill for rolling of belts decorative articles with convex-concave sharp relief of pattern on surface of belts - Google Patents

Abstract

FIELD: plastic working of metals.

SUBSTANCE: rolling mill includes working stand, drive unit, rolling rolls. One of rolling rolls has elastic bandage and other roll has pattern in the form of convex-concave surface; total height of convex portions and depth of recesses are to be less than thickness of said bandage. The last is double-layer one, it has inner polyurethane and rubber layers. Thickness of polyurethane layer consists of 0.5 - 1.0 of thickness of rubber layer.

EFFECT: enlarged manufacturing and technical possibilities of mill that may roll belts with different convex-concave surface relief in the same set of rolls, enhanced efficiency, simplified maintenance of mill.

1 dwg

Description

The invention relates to the processing of metals by pressure, in particular to equipment for the longitudinal rolling of tapes of art products with a convex-concave clear relief of the picture.

Known mill for flat rolling tapes [1].

However, the mill does not allow to obtain art products with a convex-concave surface of the picture.

The closest in technical essence is a mill for rolling ribbons with an artistic convex-concave surface of the drawing [2], including a roll with a rubber band and a roll with a pattern.

The objective of the invention is the expansion of technological and technical capabilities of the rolling mill by ensuring the rolling of various ribbons with embossed convex-concave patterns on the surface on the same set of rolls, increasing productivity and facilitating maintenance of the mill.

The essence of the invention boils down to the fact that the proposed mill for rolling thin ribbons contains a work stand, rolling rolls, a drive, and for making art tapes with a convex-concave relief of the pattern, one roll is made with an elastic two-layer rubber and polyurethane inner band, the second one pattern in the form of a convex-concave surface relief.

The total height of the bulges and the depth of the depressions should be less than the thickness of the elastic band.

In frame 1, on pillows 2 and 3, the non-driven work roll 5 (PB5) with an elastic band of 6 and 7 made of rubber and polyurethane layers (for example, rubber brands: MBS, 3826, 4004, 56 and polyurethane brands: SKU-6, SKU- 7L), the thickness of which exceeds the total height of the protrusions and the depth of the depressions of the figure. The thickness of the polyurethane layer is (0.5-1.0) the thickness of the rubber layer. With a thickness of less than 0.5, the stiffness of the bandage decreases, the relief of the pattern worsens. With a thickness of more than one, the consumption of polyurethane increases when banding the roll while maintaining the relief of the pattern.

The pattern on the surface of the drive roll 4 (pv4) is made convex-concave. The gap between the rollers is regulated by the pressure device 10 and the springs 11. Changing the gap between pb5 and pv4 provides a clear relief of the convex-concave surface of the figure.

The use of an elastic bandage made of rubber and polyurethane provides a higher quality surface relief.

A mill for rolling art products with a clear convex-concave relief of a pattern of thin ribbons, including a work stand, drive, rolling rolls, one of which is made with an elastic bandage, and the other with a pattern in the form of a convex-concave surface, with the total height of the bulges and the depth of the depressions should be less than the thickness of the bandage.

The drawing shows a General view of the mill for rolling strips with an asymmetric artistic pattern.

In the frame openings on pillows 2 and 3, non-drive rolls 5 with polyurethane 6 and elastic rubber bandage 7, as well as a drive roll 4, on the surface of which an asymmetric pattern is made, are installed respectively.

The roll cushions are pressed by pressing screws 10 and springs 11.

Between the non-driven polyurethane 6 and the elastic rubber band 7, the roll 5 and the work roll 4 with an asymmetrical pattern, a tape 9 is placed. When rolling, a clear convex-concave art pattern is formed on the surface of the tape.

The mill works as follows. According to the drawing, the blank tape 9 is fed between the roll 5 with a polyurethane bandage 6, as well as with an elastic rubber bandage 7 and a drive roll 4 with a certain surface topography in the form of a convex-concave pattern.

Under the action of the rolling force transmitted through a layer of polyurethane and rubber, an artistic relief pattern is formed on the tape by deformation.

The use of the mill makes it possible to obtain tapes with different convex-concave clear surfaces of the pattern on the same set by replacing the roll with a surface pattern, i.e. provides expansion of technological and technical capabilities of the rolling mill.

Sources taken into account:

1. Korolev A.A. "Design and calculation of machines and mechanisms of rolling mills." - M.: Metallurgy, 1985. Second edition.

2. Patent R.F. No. 2220806 "Mill for rolling from tapes of art products with a convex-concave surface of the pattern", Lukashkin ND, Kokhan LS, Gorbylev A.Yu., Lukashkin AN

Claims (1)

A mill for rolling art products with a clear convex-concave relief of a pattern of thin ribbons, including a work stand, drive, rolling rolls, one of which is made with an elastic bandage, and the other with a pattern in the form of a convex-concave surface, with the total height of the bulges and the depth of the depressions should be less than the thickness of the bandage, characterized in that the bandage is made two-layer with an internal polyurethane and rubber layers, while the thickness of the polyurethane layer is 0.5 ... 1.0 of the thickness of the rubber layer.