JPS5938310B2 - How to remove scale etc. from metal strips - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a very simple and effective method of removing oxide scale, etc. from the surface of a metal strip by applying a coil brush.

When metal strips are subjected to high-temperature machining, scale forms on the surface.
If the strip is drawn with a die without removing the scale, the scales will get stuck on the surface of the strip, and if the strip is drawn or cut, cuttings will adhere to the surface of the strip, which will cause problems in the next process. If die processing is continued, cutting chips will become trapped as described above, which will deteriorate the finish of the surface of the strip material, resulting in a decrease in product value and yield due to defective products.In addition, the tools themselves, such as dies, will It will cause wear and tear.

Conventionally, extremely ineffective and primitive methods have been used to remove scale, etc. from the surface of metal strips, such as wrapping felt or abrasive material around the strip and running it to rub the surface. There are no standardized and reliable scale removal methods or devices that can be used industrially, and an efficient and effective scale removal method has been desired.

The present invention was conceived in response to the above-mentioned problems, and focused on the form of a spiral coil brush with brush bristles facing inward. By inserting a strip, preferably a coil brush, using the strip itself as a support, high vibration due to the running of the strip and sharp collision with the tip of the bristle material are generated, and at the same time, the surface of the strip is By rubbing the tip of the bristle material of the brush, deposits such as scale and cutting debris on the strip material can be removed very beautifully and effectively.

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

1 is a coil brush, and the base of the bristle material 3 is connected to the channel 2.
A brush 1 is prepared in which the tips of the bristle materials 3 are held in a spiral shape with the tips facing inward, and the tip surfaces 3a of the bristle materials 3 of the brush 1 are concentrated in abutment with the axis.

Reference numeral 5 designates a metal strip, and when the metal strip is drawn through a die 6, the coil brush 1 is provided at the entrance of the die 6, and the strip 5 is inserted through the axis 4 of the brush 1.

As mentioned above, the coil brush 1 is supported by the strip 5 itself,
The movement follows the vibration of the strip. As described above, the coil brush 1 has the bristle material 3 concentrated on the shaft center and is in a butt state, and in this state, the strip material 5 is run for drawing processing with the die 6, so that the bristle material 3 of the coil brush 1 is Tip surface 3a
While rubbing against the strip 5, the tip surface 3a of the bristle material 3 and the surface of the strip 5 repeatedly come into contact with each other due to slight vibrations accompanying the running of the strip 5,
As the strip 5 travels, scale and the like on its surface are removed very beautifully. As an example, in order to effectively utilize the vibrations that naturally occur as the strip runs, and to effectively remove scales, the bristles 3 are formed of a steel wire with high toughness, as shown in Fig. 5, and are wired in a zigzag pattern The tip surface 3a of the bristle material 3 is bent into a wave shape to increase the abutting force of the bristle material 3 while the strip 5 is bent.
It is preferable to make it abut against the surface and elastically absorb the impact that hits the tips of the hair to prevent the hair from breaking.

Figure 2 shows coil brush 1 at each inlet of die 6...
This shows a case in which the scale is removed and, at the same time, deposits such as cutting waste from the drawing process with the die 6 in the previous stage can be removed immediately before the introduction part of the die in the next stage.

The coil brush 1 is preferably suspended over the strip 5 itself as described above, and is provided with a stopper 7 for preventing movement of the strip in the advancing direction (FIG. 2 shows a case in which the die 6 is also used as the stopper).

) or by a spring to prevent the strip from moving in the advancing direction/＼, so that it can follow the vibration of the strip 5 and vibrate at the same position. According to the present invention, by applying the coil brush 1, the tip surface 3a of the bristle material 3 is applied to the surface of the metal strip 5.
The coil brush 1 vibrates due to the slight vibrations caused by the high-speed running of the strip material 5 and repeatedly hits the surface of the strip material 5 while rubbing it evenly without any strength or weakness, and the scale is removed evenly and effectively. Since the tip of the bristle material has a spiral arrangement, the scale is vibrated, so it is quickly extruded from the brush 1 and falls easily, clogging the bristle material 3 and inhibiting the scale removal effect. do not have.

In addition, the bristle material 3 of the coil brush 1 is made of synthetic resin such as nylon,
Select as appropriate depending on the adhesion state of metal such as steel wire and other scales.

Further, the coil brush 1 has the characteristic of spreading according to the diameter of the strip material 5, and can be applied regardless of the diameter of the strip material. In addition, by elongating, the tip of the bristle material 3 forming the axis can be narrowed smaller, and the bristle material 3 of the coil brush 1 can be narrowed down.
By elongating the brush 1 in response to wear, the brush 1 can be repeatedly used for a long period of time while preventing deterioration in the efficiency of removing scale from the strip. Figure 6 shows a case where another coil brush is incorporated into the coil brush 1 by rotating it spirally from one end, stacking it more than twice to form a single body, increasing the density and tightness of the bristle material and improving the scale removal effect. shows.

As described above, the method for removing scale, etc. from a metal strip according to the present invention utilizes the form of an inward coil brush, and removes scale, etc. from the surface of a metal strip very easily and efficiently. This allows us to accurately solve the problem of surface treatment (scale removal) before machining metal strips, which has not been properly addressed in the past, and ultimately improve strip machining efficiency, extend the life of tools, and increase the commercial value of the product. This will greatly contribute to the improvement of

[Brief explanation of drawings]

Fig. 1 is a schematic side view showing an embodiment of the method for removing scale etc. from a metal strip according to the present invention, and Fig. 2 is an embodiment in which a coil brush is provided at the entrance of each die when strips are sequentially drawn. Fig. 3 is a side view of a coil brush using bent steel wire as the bristle material, Fig. 4 is a front view of the same, and Fig. 5 is a schematic side view of the same.
The figure is an enlarged sectional view of the axial center of the coil brush, and FIG. 6 is a side view of an embodiment in which the coil brush is doubled (bristle material is omitted). 1, ``... Coil brush, 2... Channel, 3... Bristle material, 3a... Bristle tip surface, 4...... Axial center, 5... Strip material.

Claims (1)

[Claims] 1. A spiral coil brush is formed by holding the bristle material inward in the channel, and a metal condition capable of running is inserted into the brush axis formed by the tip surface of the bristle material of the coil brush. , a scale of a metal strip, etc., characterized in that deposits on the surface of the metal strip are removed by rubbing the surface of the metal strip with the tip end surface of the bristle material while the metal strip is running; How to remove. 2. A method for removing scale, etc. from a metal strip according to the invention described in item 1, characterized in that the spiral coil brush is suspended on the metal strip itself as a support.