CN2271417Y - Blooming head for wide thin sheet - Google Patents

Abstract

The utility model provides a technical project of a machine head of a cogging machine for wide thin sheets used for unfolding an opening round pipe blank into a plate blank. The utility model is characterized in that an upper roll mounting beam is provided with a flaring roller, a first cogging roller, a second cogging roller and a third cogging roller. The envelope circle of the longitudinal section of the flaring roller is smaller than the inside diameter of a circular pipe blank, and the first cogging roller and the second cogging roller are two barrel-shaped rollers. The drum-shaped curvature radius of the first cogging roller is smaller than the drum-shaped curvature radius of the second cogging roller, and the third cogging roller is a cylindrical roller. A lower roller frame is arranged under the four rollers and provided with a flaring lower roller, a first cogging lower roller, a second cogging lower roller and a third cogging lower roller which correspond to the four rollers, and one side of the lower roller frame is provided with a transmission mechanism which is connected with a rotating shaft of each lower roller.

Description

Wide thin plate blooming mill head

The utility model relates to the cogging equipment of the dull and stereotyped usefulness of rolled metal, especially a kind of head of wide thin plate blooming mill.

At present, in the wide thin plate rolling of metal, the acquisition of used slab is difficulty very, no matter be extrusion or ingot casting cogging method, not only needs bigger equipment, and technology is also quite complicated.The someone proposes now, adopts upward-casting process to cast out pipe, mills a mouthful cogging then and flattens into slab, or directly cast out open-end tube with upward-casting process, and cogging flattens into slab again.This is a feasible way, because it is ripe adopting the technology of upward-casting process casting pipe or open-end tube, and can obtain inside and outside preferably surface, does not need reprocessing after cogging flattens.But present existing problem is the cogging equipment that does not still have the open-end tube cogging to be flattened into slab so far.

The purpose of this utility model is exactly at the existing in prior technology problem, and a kind of blooming mill head technical scheme that the open-end tube cogging can be flattened into wide sheet billet is provided.

For clearly demonstrating the technical characterstic of this programme, now by a specific embodiment, and in conjunction with its accompanying drawing, the technical characterictic to this programme is described in detail.

Description of drawings:

Fig. 1 is the structural representation of the utility model embodiment;

Fig. 2 looks schematic diagram for the left side of Fig. 1;

Fig. 3 is the schematic top plan view of Fig. 1.

By accompanying drawing as can be seen, the wide thin plate blooming mill head of this programme has a top roll mounting rail 3, a pair of enlarging roller 4, a pair of cogging I roller 5, a pair of cogging I roller 6 and a pair of cogging III roller 7 are housed on it, the enlarging roller 4 that described a pair of enlarging roller 4 is a pair of symmetrical installations, and be contained on the top roll mounting rail 3 by rotating shaft, its two roller is crossed the envelope circle in axis vertical section, is less than the internal diameter of the open circles pipe of being opened.Described a pair of cogging I roller 5 and a pair of cogging II roller 6, all be to be installed on the top roll mounting rail 3 by the rotating shaft symmetry, constitute two barrel-type rollers, and the barrel-type roller radius of curvature that a pair of cogging I roller 5 constitutes is less than the barrel-type roller radius of curvature that a pair of cogging II roller 6 constitutes, described a pair of cogging III roller 7 has then constituted a cylindrical roll, the rotating shaft of cogging III roller 7 on being contained in top roll installing rack 3, also to be contained on the top roll frame 2, to increase its working strength.Between described a pair of enlarging roller 4, a pair of cogging I roller 5, a pair of cogging II roller 6 and a pair of cogging III roller 7 and its rotating shaft separately bearing 13 is housed all, purpose is to guarantee the flexible of roller turn.Lower roll frame 1 is arranged below above-mentioned four pair rollers, an enlarging lower roll 9 corresponding with a pair of enlarging roller 4 is installed on it, I roller 10 under the cogging corresponding with a pair of cogging I roller 5, under the cogging corresponding with a pair of cogging II roller 6 II roller 11 and with a corresponding cogging of a pair of cogging III roller 7 under III roller 12.Described enlarging lower roll 9 is barrel-type rollers, and under the cogging under I roller 10, the cogging under II roller 11 and the cogging III roller 12 be cylindrical roll.In addition, have under transmission mechanism 8 and described enlarging lower roll 9, the cogging under I roller 10, the cogging in a side of lower roll frame 1 that the rotating shaft of III roller 12 is connected under the II roller 11 and cogging, make each lower roll have the power of rotation.Described transmission mechanism 8 can be that conventional chain drive or belt transmission all can.

In this programme, owing to an envelope circle is arranged less than by the enlarging roller of the open circles pipe internal diameter of cogging, this roller can be inserted into the inner chamber of open circles pipe, again with its under cydariform enlarging lower roll push mutually, the open circles pipe is opened, through the cydariform rollcogging-roll and the extruding of its corresponding lower roll of two different radius of curvature, circular pipe blank is flattened substantially, after the roll compacting of cylindrical rollcogging-roll and cylindrical lower roll promptly becomes required slab.This shows that the utility model has solved the open circles pipe, cogging is launched into the problem of flat blank, and compared with prior art, its effect is conspicuous.

Claims (5)

1. one kind wide thin plate blooming mill head, it is characterized in that having a top roll mounting rail [3], a pair of enlarging roller [4] is housed on it, a pair of cogging I roller [5], a pair of cogging II roller [6] and a pair of cogging III roller [7], described a pair of enlarging roller [4] is the enlarging roller [4] of a pair of symmetrical installation, and be contained on the top roll mounting rail [3] by rotating shaft, its two roller is crossed the envelope circle in axis vertical section, be less than the internal diameter of the open tubular shape base of being opened, described a pair of cogging I roller [5] and a pair of cogging II roller [6], all be to be installed on the top roll mounting rail [3] by the rotating shaft symmetry, constitute two barrel-type rollers, and the barrel-type roller radius of curvature that a pair of cogging I roller [5] constitutes is less than the barrel-type roller radius of curvature that a pair of cogging II roller [6] constitutes, and described a pair of cogging III roller [7] has constituted a cylindrical roll, lower roll frame [1] is arranged below above-mentioned four pair rollers, an enlarging lower roll [9] corresponding with a pair of enlarging roller [4] is installed on it, I roller [10] under the cogging corresponding with a pair of cogging I roller [5], under the cogging corresponding with a pair of cogging II roller [6] II roller [11] and one with to III roller [12] under the corresponding cogging of cogging III roller [7]; Have under transmission mechanism [8] and described enlarging lower roll [9], the cogging under I roller [10], the cogging in a side of lower roll frame [1] that the rotating shaft of III roller [12] is connected under the II roller [11] and cogging.

2. wide thin plate blooming mill head according to claim 1 is characterized in that described enlarging lower roll [9] is a barrel-type roller.

3. wide thin plate blooming mill head according to claim 1 is characterized in that under the described cogging under I roller [10], the cogging that III roller [12] is cylindrical roll under the II roller [11] and cogging.

4. wide thin plate blooming mill head according to claim 1, the rotating shaft that it is characterized in that described a pair of cogging III roller [7] also will be contained on the top roll frame [2] except that being contained in top roll mounting rail [3] goes up.

5. wide thin plate blooming mill head according to claim 1 is characterized in that between described a pair of enlarging roller [4], a pair of cogging I roller [5], a pair of cogging II roller [6] and a pair of cogging III roller [7] and its rotating shaft bearing [13] being housed all.

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