JPS6347361Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an edger mill for H-section steel.

H-section steel is formed by a universal rolling equipment consisting of a rough universal mill, an edger mill, and a finishing universal mill.

As shown in FIGS. 1 and 2, the edger mill consists of upper and lower edger mill rolls 1 and upper and lower web guides 2, and only serves to roll down the upper and lower ends of the flange 3a of the rough H-shaped steel 3. , and the web 3b is not rolled down.

The web guide 2 guides the web 3b surface of the rough H-shaped steel 3, but as shown in FIG. 1, it is only fixed by a fixed shaft 2a, and the tip of the web guide 2 is only in contact with the edger mill roll 1, so when it receives a lateral force from the rough H-section steel 3 during rolling, the tip of the web guide 2 swings left and right, resulting in the phenomenon shown in Fig. 3. As shown, for example, when the tip of the web guide 2 swings to the left, the left flange 3a of the rough H-shaped steel 3 is rolled by the edger mill roll 1, but the right flange 3a is rolled. Accidents may occur in which the web part of the edger mill roll 1 gets caught, making it impossible to continue rolling.

The present invention provides an edger mill that prevents the flange of a rough H-beam from getting caught in the edger mill roll web due to the horizontal swing of the web guide in the edger mill during universal rolling of H-beams. It was developed.

Embodiments of the present invention will be described below with reference to FIGS. 4 to 6.

As shown in FIG. 4, an annular groove 1a is provided in the center of the outer peripheral surface of the edger mill roll 1 that is not subjected to rolling of the rolled material, and as shown in FIG. A protrusion 2b that fits into the annular groove 1a of the roll 1 is provided, and as shown in FIG.
The protrusion 2b at the tip of the web guide 2 is fitted, and the web guide 2 is set on the edger mill stand using the fixed shaft 2a.

In this way, the protrusion 2b at the tip of the web guide 2 is inserted into the annular groove 1a of the edger mill roll 1.
By fitting these, it is possible to prevent the web guide 2 from swinging in the left-right direction due to vibrations during rolling or lateral forces received from the rolled material.
Accidents such as the flange 3a getting caught in the web portion of the edger mill roll 1 can be reliably prevented.

[Brief explanation of the drawing]

Figure 1 is a schematic side view of a conventional edger mill.
Fig. 2 is a schematic front view of the same as above, Fig. 3 is an explanatory diagram showing an example of an accident in which a flange of a rough H-section steel gets caught in an edger mill roll, and Fig. 4 is a front view of an edger mill roll according to the present invention. 5 is a perspective view of the main parts of the web guide according to the present invention, and FIG. 6 is a schematic side view of the edger mill according to the present invention. 1... Edger mill roll, 1a... Annular groove, 2
...Web guide, 2a...Fixed shaft, 2b...Protrusion, 3
...rough H-shaped steel, 3a...flange, 3b...web.

Claims (1)

[Scope of utility model registration request] An H-section steel consisting of an edger mill roll having an annular groove in the center of the roll's outer peripheral surface facing the web of the H-section steel, and a web guide having a protrusion at its tip that fits into the annular groove of the edger mill roll. Etsiya Mill.