JPS5912123Y2 - Brush head in mold internal cleaning device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an inner surface cleaning device for molds for small steel ingots, and includes a brush head that has almost the same shape as the inside shape of the mold at the tip of the brush mounting rod and is capable of reducing its outer diameter. This invention relates to a device that removes foreign matter adhering to the inner surface of a mold by sliding a brush head along the inner surface.

Generally, during the process of pouring molten steel into a mold, splashes and coating materials adhere to the inner surface of the mold, so in order to remove this, the mold is cooled to a predetermined temperature after the steel ingot is removed and then cleaned.

Conventionally, the brush heads of mold inner surface cleaning devices are often used to remove deposits by rotating a brush and multiple chains within the mold, but this is a large mold with a circular inner surface. Although it is possible to efficiently clean the mold, the inner diameter of the mold is 150 to 200 mm.
Due to its small size and internal shape, it is unsuitable as a brush head for cleaning equipment for square molds, so workers are currently removing it manually using wire brushes. There was a demand for the development of a new brush head.

The present invention was developed in view of the above-mentioned drawbacks, and in order to efficiently clean the inner surface of small molds, a plurality of pieces are attached to the tip of the brush mounting rod, which has a length equivalent to the height of the mold that is raised and lowered by the drive device. It has a removable brush head that consists of an elastic member and a mounting bracket with a brush attached to the elastic member, and since the outer diameter of the brush head can be reduced, it has a rectangular shape. The upper wide type and lower wide type molds can be inserted into the mold hole easily, and the brush has a uniform pressing force against the inner surface of the mold, so there is no need to worry about the splash or coating material that stubbornly adheres to the mold when pouring the molten metal. etc. can be removed in a short time without damaging the mold.

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

Reference numeral 1 is a brush mounting rod having a square cross section and a length approximately equal to the height of the mold (not shown), and 2 is a spring steel fixed to the four sides of the tip of the mounting rod 1 with bolts 3. It is a multi-piece elastic member.

A protrusion 4 is fixed to the inner surface of the tip of each of the elastic members 2, and when an inward pressing force is applied from the outside, the protrusion 4 comes into contact with each other and maintains a constant outer diameter. It has become.

Reference numeral 5 denotes a brush mounting bracket which is fixed to the outside of the elastic member 2 with bolts 6 so as to press one end of each other and has a wire brush 7, and one elastic member 2 has brushes mounted in three stages, upper and lower. A metal fitting 5 is provided, and the outer shape of the brush attached to the four elastic members 2 is a rectangular shape similar to the inner shape of the mold. , a brush mounting bracket 5, and a brush 7.

Next, the effects will be explained.

After the steel ingot has been extracted, the mold is cooled to a predetermined temperature and placed on a predetermined position on the pedestal, and the brush mounting rod 1 is slid by a drive device (not shown in the drawings) to place the brush head A into the mold hole. insert.

Upon insertion, since the brush diameter of the brush head A is slightly larger than the mold inner diameter, a pressing force is applied to the brush head A when it is inserted into the mold hole.

On the other hand, since the brush head A is composed of a plurality of elastic members made of spring flat steel, the elastic member 2 deforms in response to this pressing force and the outer diameter of the brush is reduced. The brush head A is inserted into the mold hole while maintaining a constant outer diameter by the protrusions 4 provided at the tips of the members 2 coming into contact with each other, and the brush head 7 is kept at a constant outer diameter by the elastic force of the elastic member 2 against the inner surface of the mold. The brush head A moves back and forth within the mold to remove splash and coating material that adheres to the inner surface of the mold, thereby cleaning the inner surface of the mold.

The present invention has the above-mentioned structure, and includes a plurality of elastic members at the tip of the brush mounting rod, a protrusion on the inside of the tip of the elastic member, and a brush mounting bracket on the outside to which the brush is attached. Since the outer diameter of the brush head can be reduced, even rectangular upper wide type and lower wide type molds can be inserted into the mold hole without difficulty, and even when sliding, the brush always remains against the inner surface of the mold. Since it has a uniform pressure contact force, it can remove splashes, coating materials, etc. stubbornly attached to the inner surface of the mold in a short time without damaging the mold, making it extremely useful industrially.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a partially omitted front view showing a brush head made of a plurality of elastic members, etc. provided at the tip of a brush mounting rod, and Fig. 2 is a partially omitted front view of the brush head. FIG. 1: Brush mounting rod, 2: Elastic member, 4: Projection, 5: Brush mounting bracket, 7: Brush.

Claims (1)

[Scope of utility model registration request] In an apparatus for cleaning the inner surface of a mold by sliding a brush mounting rod having a brush head at its tip by a drive device, a plurality of elastic members detachably provided at the tip of the brush mounting rod, and an opposing elastic member are provided. a protrusion fixed to the inside of the tip and abutted against each other by pressure from the outside to maintain a constant outer diameter; and a removably provided protrusion on the outside of the elastic member;
Consisting of brush mounting brackets attached to press one end of each other and a brush fixed to the brush mounting bracket, the outer shape of the brush provided on the plurality of pieces of the elastic member is approximately the same shape as the inner shape of the mold. A brush head for an inner surface cleaning device for a mold, characterized in that its outer diameter can be reduced.