JPS6030998Y2 - Descaling device for hot forging materials - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a descaling device for heated material supplied to a hot forging press.

In a hot forging press, a heated material, which is a workpiece, is supplied to the press after the scale generated on the surface of the material is peeled off using a descaling device.

In conventional descaling equipment, the heated material is placed between two rotating rolls installed horizontally, and while the material is rotated, the scale on the surface of the material is removed by a brush roll installed above the rolls. Then, the material is fed to the hot forging press by a material extrusion device installed behind the roll.

However, this device requires an extrusion device to move the material, resulting in a complicated structure.

The present invention was devised in order to improve these problems, and the support roll is made to have an inclination, and the brush roll is installed with its rotation axis facing diagonally with respect to the axial direction of the support roll. However, by the sliding of the material on the support roll and the rotation of the brush roll in the feeding direction, the material is transported and the scale is peeled off at the same time.

This makes it possible to perform scale removal efficiently with a simple configuration.

The following will explain the embodiments shown in the drawings.

In FIGS. 1 to 3, 1. 1' is a pair of 2
The book support roll is installed with an angle of inclination with respect to the horizontal toward the heating material supply part of the hot forging press (not shown), and both rolls 1 , 1' are rotated in the same direction.

Reference numeral 2 denotes a brush roll provided above the support rolls 1 and 1', and the direction of its rotation axis is inclined by an angle θ with respect to the axial direction of the support rolls 1 and 1'.

Further, the brush roll 2 is adapted to be rotated downward as shown by the arrow in FIG.

3 is a cylindrical heated material supplied to the hot forging press as a workpiece.

4 is a shoe that feeds the material 3 to the support rolls 1 and 1';
Reference numeral 5 denotes a chute for feeding the material 3 from the support rolls 1 and 1' toward the press.

The present invention is constructed as described above, and its operation will be described next.

First, the material 3 is heated in a heating furnace (not shown) and then fed through the chute 4 to the upper part of the support rolls 1, 1'.

Since the supporting rolls 1 and 1' are tilted and rotating clockwise, the material 3 rotates counterclockwise (as shown in Figure 3).
Meanwhile, it slides on the support rolls 1 and 1'.

Then, when passing under the rotating brush roll 2, the scale on the surface is peeled off.

At this time, the brush roll 2 is rotated diagonally downward with respect to the axial direction of the support rolls 1 and 1', that is, in the material feeding direction, and a component force in the feeding direction is applied to the material 3 by the brush roll 2. Therefore, the material 3 is smoothly fed toward the chute 5.

Note that the mounting angle α of the support rolls 1 and 1', the installation angle θ of the brush roll 2, and the adjustment of the distance between the brush roll 2 and the support rolls 1 and 1' can be freely adjusted.

In addition, if the brush roll 2 is placed sideways, that is, if the installation angle θ is set to 08, there is a risk that the feed material 3 may jump out from between the support rolls 1 and 1' to the side, and the brush roll 2
If it is straight, that is, the installation angle is 90 degrees, then the supplied material 3 will be in the axial direction of the support rolls 1, 1',
That is, it is not good because it is sent out all at once in the feeding direction, which reduces the scale removal effect.

Therefore, the brush roll is installed inclined at a certain angle θ.

Next, as shown in FIGS. 4 and 5, the peripheral surfaces of the support rolls 1 and 1' are chamfered to a certain width, and the flat and curved surfaces are brought into contact with the material 3 alternately to apply vibrations. , the sliding speed of the material 3 can be increased due to the effect of reducing the frictional force due to the vibration.

Therefore, the inclination of the support rolls 1, 1' can be made low.

In this example, the peripheral surfaces of the support rolls 1 and 1' are chamfered at four places, but the cross section of the support rolls may be formed into a polygon, or grooves or convex portions may be provided on the surface of the support rolls. It is equally effective.

As detailed above, in the present invention, the support roll is installed at an angle, and the brush roll is rotated downward at an angle with respect to the axial direction of the support roll, so there is no need to use a material extrusion device. In addition to peeling off the scale of the material, smooth feeding is achieved, and by forming the support roll in a non-circular shape, it gives vibration to the material, making it possible to install the support roll with a small inclination angle, making the structure more flexible. It can be simplified and has a great effect on cost reduction.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a side view of the same, and FIG. 3 is a front view of the same. FIG. 4 is a perspective view showing an embodiment in which the peripheral surface of the support roll is chamfered, and FIG. 5 is a cross-sectional view of the support roll. 1.1'...Support roll, 2...Brush roll, 3...Material.

Claims (1)

[Claims for Utility Model Registration] 1. Two support rolls rotating in the same direction are provided side by side with an inclination in the axial direction, and a brush roll is placed above the rolls with respect to the axial direction of the support rolls. A descaling device for hot forging materials characterized by having a rotating shaft oriented obliquely. 2. The hot forging material descaling device according to item 1, wherein the support roll has a non-circular roll cross section.