SU893296A2 - Apparatus for charging dischargig narrow coils - Google Patents

Description

(54) UNIT FOR UNLOADING (DOWNLOAD) NARROW ROLLS

A device for unloading (loading) of narrow coils is related to the processing of metals by pressure and, in particular, can be used mainly in the production of thin strip material. According to the main author. St. No. 697224, a device for unloading (loading) narrow coils is known, comprising a transport carriage, a lifting table mounted on it, equipped with copiers, rollers interacting with copiers, mounted on the lower ends of the double-arm locking lever. At the upper ends of the grips are made flat clamps l. A disadvantage of the known device is the impossibility of unloading a package of narrow coils from friction drums after longitudinal cutting due to the presence of differences in the outer diameters of the coiled rolls due to the unevenness of the edges, the difference in tension of the tapes and their thickness variation across the width of the original strip. When gripping the packs of coils lying on the table with a difference in their outer diameters, the axis of the coils with a smaller outer diameter is lower than the axis of the drum. In this case, an annular gap between the opening of these rolls and the compressed drum is not formed. When such rolls are removed, the telescopicity of the turns is formed and the integrity of the rolls is interrupted. The purpose of the device is to improve the performance of the unit and the expansion of technological capabilities during the removal from the drum of packages of narrow rolls with a difference in outer diameters. This goal is achieved by the fact that the device for unloading (loading) the narrow coils is equipped with spring-loaded slips mounted on a lifting table, and slips of this traditional material mounted on the clamps.

FIG. I shows a device for unloading (loading) narrow coils, a general view; FIG. 2 shows section A-A in FIG. 1 (clamping a package of rolls with a table and one of the clamps)

The device consists of a transport trolley 1, a lifting table 2 mounted on it with copiers 3 and overlays 4, springs 5 on a table 2 supported by the springs, and also two-arm hingedly mounted levers 6 with rollers 7 and flat clamps 8 with elastic pads 9. Rollers 7 two-arm levers 6 are constantly pressed against the copiers 3 by springs 10. In the trolley case there is mounted a hydraulic cylinder 11 for raising the table 2 and converging the levers 6.

When unloading the rolls, the device works in the same way.

After winding the rolls and diluting (with simultaneous compression) of the tank bar, the trolley 1 moves under the drum. In this case, the rolls are under the pads 4 of the table 2.

 Lifting table 2 is lifted using hydraulic cylinder 1I, interacting with copiers 3 through rollers 7 with double-arm levers 6. This flattens down the flat clamps 8 with the coil centering of the largest outer diameter along the axis of the winding drum and forming an annular gap between the winding holes of this roll and squeezing the drum. The force of the hydraulic cylinder If is such that the springs 5 under the cover 4 are compressed and the plates 4 are lowered all the way into the table 2, and the elastic plates 9 of the flat clamps all over the contact area

With this roll, they are compressed by the amount of travel of the overlays 4 of the table 2.

If there are coils with a smaller outer diameter, the plates 4 by the springs 5 weigh them over the table 2, compensate for the difference in the outer diameters, and the elastic plates hold these rolls in a vertical plane, centering them along the axis of the drum with the formation of an annular gap between the coil hole and the drum, allowing Remove the entire package of rolls from the drum without displacing the inner turns of the tape. The cart with the clamped rolls is moved to the roll drive (not shown). Loading of the rolls onto the drum is done in the same way.

The technical and economic effect of the introduction of the proposed device is achieved by increasing the productivity of the unit, reducing the auxiliary time and amounts to 116.6 thousand rubles. in year.

Claims (1)

1. USSR author's certificate number 697224, cl. B 21 C 47/24, 02.06.78 (prototype). , ...-, y- “: