JPS6024723B2 - Multi-purpose rolling mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-purpose rolling mill that can be used as a mill and a shingler.

In the manufacturing process of strip (metal band plate), various shape defects such as warpage, waves, edge elongation, and mid-elongation occur as the strip undergoes various processes such as rolling, phosphor dulling, and temper rolling.

These shape defects not only cause various problems in the subsequent processing steps of the strip, but also become a factor in lowering the quality level of products using the strip. Therefore, in order to remove the shape defects, the strip that has gone through the above-mentioned processes is generally subjected to a bending force and a tensile force by a stylus (straightening machine) to cause plastic elongation, and this plastic elongation corrects the shape defects. We are trying to
However, since the conventional leveling machine is installed separately from the rolling mill in each rolling line, it has the disadvantage that the equipment and operation and maintenance costs are high.

The present invention was made for the purpose of eliminating the above-mentioned drawbacks of the conventional means, and includes a vertical support roll shaft box that rotatably supports the upper and lower support rolls, which can be raised and lowered, and an upper and lower intermediate roll, and an upper and lower work roll, respectively. It is characterized by comprising a rotatably supported upper and lower axle boxes that can be raised and lowered, and a device that rotates the upper and lower axle boxes around the upper and lower restraint roll cores.

Embodiments of the present invention will be described below with reference to the drawings.

An upper retainer roll 3 is rotatably mounted on an upper retainer roll shaft box 2 provided inside the housing, and a lowering screw 4 and a worm (not shown) are mounted on the upper part of the upper retainer roll shaft box 2. A worm wheel and the like are provided so that the upper holding roll shaft box 2 can be moved up and down.

An upper fork 5 having a forked fork on the lower side is pivotally attached to the ball of the upper holding roll 3 via a bearing 6.
In a space inside the upper fork 5, a bifurcated upper intermediate roll shaft box 8, in which two upper intermediate rolls 7 are pivotally mounted, is saddle-fitted.

In the space inside the fork of the upper intermediate roll shaft box 8, an upper work roll shaft box 11, in which the upper work roll 9 is pivotally mounted via a bearing 10, is iron-coupled. , a drive device (not shown) is connected via a universal joint 12.

A rod tip of a fluid pressure cylinder 13 is pivotally attached to the negative side of the upper fork 5, and a worm 14 is attached to the pond side.
, a screw shaft 16 that goes in and out of the worm wheel 15 is pivoted by driving the three worm wheels 15.

In the lower roll shaft box 17 provided inside the housing 1,
A lower backing roll 18 is rotatably mounted, and a lowering cylinder 19 is provided at the lower part of the lower backing roll shaft box 17.

A lower fork 20 having a forked fork on the upper side is pivotally attached to the koji part of the lower backing roll 18 via a bearing, and in the space inside the seven oaks of the lower fork 20, two A forked lower intermediate roll shaft box 22, to which the lower intermediate roll 21 is pivotally attached, is made of iron.

A lower work roll shaft box 24, in which the lower work roll 23 is mounted via a bearing, is connected to the space inside the fork of the lower intermediate roll shaft box 22, and the output shaft of the lower work roll 23 is connected to the upper Like the work roll 9, it is connected to a drive device via a universal joint, although not shown.

A fluid pressure cylinder 25 is provided on one side of the lower fork 20.
The tip of the rod is pivotally mounted, and the worm 2 is attached to the other side.
6. A screw shaft 28 is pivotally mounted which moves in and out of the worm wheel 27 by driving the worm wheel 27.

Note that S in the figure represents a strip. Next, the operation of the present invention will be explained.

When rolling the strip S, as shown in FIG.
18, the upper and lower restraining rolls 3, 18,
Strip S as shown on the upper and lower work rolls 9 and 23
is rolled, and the upper and lower work rolls 9, 23 are rolled down by the rolling screw 4 and the rolling cylinder 19 to roll the strip S.

When correcting the shape of the strip S, use the worm 14
, move the screw ball 16 by the worm wheel 15,
The fluid pressure cylinder 13 is extended and the upper fork 5 is rotated by Q degrees in the direction of the recoil indicator as shown in FIG. The fork 20 is rotated counterclockwise by Q degrees, and the strip S is rolled by the upper and lower hold rolls 3 and 18 and the upper and lower work rolls 9 as in the case of rolling.
, 23 and transported in the direction of the arrow in FIG.

Then, the strip S is given tension necessary for straightening between the upper and lower backing rolls 3 and 18, and is also given a plastic bending force necessary for straightening by the upper and lower work rolls 9 and 23, thereby correcting its shape. FIG. 5 shows another embodiment for correcting the shape of the strip S, in which the upper and lower work rolls 9
, 23 center line, upper and lower work rolls 9
, 23 at a predetermined interval to correct the shape.

Even in this case, the shape of the strip S can be corrected in the same manner as in the case of FIG. 6 to 8 show other embodiments of the present invention, which differ from the embodiments shown in FIGS. 1 to 5 in that the number of upper and lower intermediate rolls is one each.

In the drawings, the same reference numerals as those shown in FIGS. 1 to 5 indicate the same components. In addition, in the embodiment of the present invention, a case has been described in which a screw shaft and a fluid pressure cylinder are used to rotate the upper and lower forks, but it is also possible to implement the invention even if only the screw shaft or the fluid pressure cylinder is provided on both sides of the fork.
It goes without saying that various other changes may be made without departing from the gist of the present invention.

Since the multi-purpose rolling mill of the present invention has the above-mentioned configuration,
It is possible to roll and correct the shape of the strip with one machine, and therefore the excellent effect of reducing equipment costs can be achieved.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of an embodiment of the multi-purpose rolling mill of the present invention, Fig. 2 is a view taken in the direction of the low D arrow in Fig. 1, and Fig. 3 is a case in which the multi-purpose rolling mill of the present invention is used as a rolling mill. Explanatory diagram, 4th
Fig. 5 is an explanatory diagram when the rolling mill of the present invention is used as a plater, Figs. 6 to 8 show other embodiments of the multi-purpose rolling mill of the present invention, and Figs. FIG. 7 is an explanatory diagram of the case of use as a rolling mill, and FIG. 8 is an explanatory diagram of the case of use as a plater. 2 is an upper support roll shaft box, 3 is an upper support roll, 5 is an upper fork, 7 is an upper intermediate roll, 8 is an upper intermediate roll shaft box, 9 is an upper work roll, 11 is an upper work roll shaft box, 16 is a screw The shaft, 17 is the lower support roll shaft box, 18 is the lower support roll, 2nd river is the lower fork, 21 is the lower middle. 22 is a lower intermediate roll shaft box, 23 is a lower work roll, 24 is a lower work roll shaft box, and 28 is a screw shaft. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8

Claims (1)

[Claims] 1. A vertical support roll shaft box that can be raised and lowered to rotatably support the upper and lower support rolls, a vertical support roll shaft box that can be raised and lowered to rotatably support the upper and lower middle rolls, and an upper and lower work roll, respectively, and the upper and lower support roll boxes are connected to the upper and lower support roll shafts. A multipurpose rolling mill characterized by comprising a device that rotates around a core.