KR101031937B1 - Surface treatment unit - Google Patents

Abstract

The present invention relates to a surface treatment unit of a blasting apparatus for surface treatment operations of steel pipes or steel sheets, the interval holding member (2) and a fixed block (3) is provided from the rotating shaft (1) of the blasting apparatus, the fixed block In the surface treatment unit (10) provided between the fixed shaft (4) penetrating (3) to perform the roughening work on the work target surface of the steel pipe and steel plate as the rotation of the rotary shaft (1), the fixed block (3) The coil spring 12, which has a rectangular cross section, penetrates loosely on the fixed shaft 4 penetrating therebetween, so that a rough surface is formed on the surface to be worked by the centrifugal friction action as the rotation shaft 1 rotates. Characterized in that, characterized in that the nutring portion 12a is formed on the outer periphery of the coil spring 12, in one embodiment the spiral of the coil spring 12 in the coil spring from the fixed shaft (4) According to the rotation of The surface treatment unit is characterized in that a plurality of ring pins 14 for forming a rough surface on the work target surface by centrifugal force action, the surface treatment unit horizontally fixed fixing blocks arranged at equal intervals on the rotating shaft of the blasting apparatus Coil springs consisting of rectangular cross sections are installed alternately on the penetrating fixed shafts, and the coil springs are eccentrically rotated as the rotational centrifugal force from the fixed shafts according to the rotational axis rotation. By removing the rust and black skin generated on the surface by striking and simultaneously forming rough surface from the working surface, rough surface formation using the outer circumference of the coil spring has a much longer service life than the existing steel wire brush. As an efficient surface roughening work, the post-process painting work has an excellent advantage.

Surface, rotating shaft, fixed block, fixed shaft, coil spring, ring pin

Description

Surface treatment unit

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surface treatment unit, and more particularly, in a blasting apparatus used for surface work (sandblasting effect) performed for coloring of paints on steel sheets or steel pipes, the same being arranged at equal intervals from the rotation axis of the blasting apparatus. The present invention relates to a surface treatment unit capable of performing eccentric rotation from the fixed shaft of the fixed block to effectively hit the surface of the work object to effectively remove the rust and black skin and to perform the surface roughness at the same time.

In general, when painting steel pipes or steel sheets, rust, black skin, etc. generated by corrosion are removed on the surface, and the inner circumferential surface of the steel pipe is smoothly brushed, and then the surface is provided on the surface to obtain sandblasting effect so that the paint is well coated on the steel pipe. As a blasting apparatus, the surface treatment process of forming a fine rough surface is performed.

The blasting apparatus is a structure for driving a rotating shaft through a drive device, the surface treatment unit is installed on the rotating shaft. The surface treatment unit is a combination of a plurality of cylindrical fixed blocks, each of the fixed block is fixed to one side of the steel wire brush embedded. The steel wire brushes are purchased at predetermined intervals and installed in the form of facing each other.

In the process of performing the surface roughness of the steel pipe or steel pipe as a rotary drive of the rotary shaft by installing a plurality of conventional surface treatment units as described above occurred the following problems.

In the process of forming the rough surface while the end of the steel brush rotates the working surface of the steel pipe or steel plate, the steel wire is instantaneously warped with respect to the work surface, and the steel wire brush material is usually made of carbon steel after bending. Due to the nature of the force generated immediately.

As the above operation is repeated by the high-speed rotation, the steel wire brush is outwardly based on the boundary point embedded from the fixed block, and at the same time, the steel wire brush receives the most fatigue at the boundary point when the rotation axis is rotated. There was a problem of not using the time and broken.

As more steel wire brushes are damaged as described above, the surface roughening work cannot be performed from the surface, and it becomes very irregular, which leads to a problem that a defective rate occurs in the future painting work of the paint, and from the blasting apparatus to the new surface treatment unit. The workability is remarkably deteriorated because all of them need to be replaced.

The present invention has been made to solve the above problems, in the blasting apparatus used for the surface work carried out for the coloring of the paint, such as steel sheet or steel pipe, from the fixed shaft of the fixed block arranged at equal intervals from the rotation axis of the blasting apparatus Eccentric rotational movement to effectively hit the surface of the object to remove the rust, black skin and surface roughness work can be done at the same time effectively.

According to the present invention for achieving the above object, a spacing member and a fixed block are installed from a rotating shaft of the blasting apparatus, and are installed between the fixed shaft penetrating the fixed block to roughen the surface of the steel pipe and the steel plate as the rotating shaft rotates. In the surface treatment unit to perform,

A coil spring having a rectangular cross section on a fixed shaft penetrating between the fixed blocks penetrates in a loose shape, so that a rough surface is formed on a work target surface by centrifugal friction action as the rotation shaft rotates.

In addition, the outer ring of the coil spring characterized in that the knurling portion is formed.

In addition, the spiral of the coil spring is characterized in that a plurality of ring pins for forming a rough surface (粗 面) on the surface of the work by centrifugal force action according to the rotation of the coil spring from the fixed shaft is installed.

In the surface treatment unit according to the present invention, coil springs each having a rectangular cross section are alternately installed on a fixed shaft horizontally penetrating a fixed block arranged at equal intervals on the rotating shaft of the blasting apparatus, and the rotational centrifugal force from the fixed shaft is rotated according to the rotating shaft rotational drive. As the coil spring is rotated eccentrically, it is removed by the action of striking the rust and black skin generated on the work target surface as the angular edge of the angled coil spring and the surface side knurling part, and at the same time, the rough surface is formed from the work surface. In this case, rough surface formation using the outer circumference of the coil spring has a very long service life compared to conventional steel wire brushes, and has an advantage of excellent post-process paint work as an effective surface roughening work.

Hereinafter, the configuration of the present invention with reference to the accompanying drawings in more detail.

1 is a side view showing a part of the blasting apparatus installed with the present invention the surface treatment unit, Figure 2 is a perspective view showing a coil spring constituting the surface treatment unit according to the present invention, Figure 3 Partial enlarged view showing an enlarged surface treatment unit according to the invention, Figure 4 is a front view illustrating the operating state of the coil spring according to the present invention.

According to the present invention, the space member 2 and the fixed block 3 are installed on the rotating shaft 1 of the blasting apparatus, and are installed between the fixed shaft 4 penetrating the fixed block 3 and the rotating shaft 1. In the surface treatment unit 10 for performing a roughening operation on the work target surface of the steel pipe and steel sheet as the rotation of,

A coil spring 12 having a rectangular cross section is penetrated loosely on a fixed shaft 4 penetrating between the fixed blocks 3 to be roughened on a surface to be worked by a centrifugal friction action according to the rotation of the rotating shaft 1. It is to be formed.

On the outer circumference of the coil spring 12, a nuling portion 12a may be formed so as to have a strike against the work target surface and a friction effect.

On the other hand, Figure 5 is a side view showing a portion of the blasting apparatus is applied to the surface treatment unit is applied in one embodiment according to the present invention, Figure 6 is a perspective view showing a state in which the ring pin is applied to the coil spring in Figure 5 installed FIG. 7 is a front view illustrating an operating state of the ring pin with respect to the coil spring in FIG. 5.

One embodiment as described above, in the configuration of the surface treatment unit 10 as described above, the spiral spring of the coil spring 12 to the work surface by the centrifugal force action according to the rotation of the coil spring from the fixed shaft (4) A rough surface can also be formed in the.

On the other hand, the arrangement of the coil spring 12 provided from the fixed shaft (4) is the fixed block (3) is spaced apart alternately with respect to the rotating shaft (1) so as to brush the work surface without moving the gap. As (2), the surface treatment unit 10 is comprised so that upper and lower sides may mutually alternate.

For reference, the fixing block (3) is coupled to the fixing key (not shown in the drawing) provided from the rotating shaft (1), are respectively arranged in the upper and lower sides arranged alternately with the spacer member (2), the fixed Both ends of the shaft 4 are provided with fastening portions, and are fastened and fixed with nuts of the fixing blocks at the front and rear ends.

Referring to the operation of performing the surface roughness operation using the surface treatment unit of the present invention configured as described above are as follows.

First, the surface treatment unit 10 is formed on the fixed shaft 4 together with the installation of the spacer member 2 through the fixed blocks 3 coupled to each other in the upward and downward directions with respect to the rotating shaft 1 of the blasting apparatus. The coil spring 12 is loosely penetrated.

Here, the coil spring 12 penetrates loosely with respect to the fixed shaft 4, and as shown in FIG. 1 attached as an alternating installation of the fixed block 3, the coil springs 12 are each up and down. Are staggered.

This is to prevent the sections on which the coil spring 12 works with respect to the surface of the work target surface or the work target surface as shown in FIG. 1 attached by the rotation shaft 1 so as not to overlap each other.

In other words, each work area of the coil spring 12 provided from the fixed shaft 4 is a blasting device is arranged on the plane of the steel plate, the circumference of the steel pipe can be worked without the horizontal movement of the rotating shaft in the working period.

On the other hand, the coil spring 12 constituting the surface treatment unit 10 is formed with a nuring portion 12a on the outer surface, it is possible to remove the rust and black skin efficiently in the process of hitting the work target surface .

In addition, since the coil spring 12 has a rectangular cross-sectional area, the fixed shaft 4 is rotated circumferentially with respect to the rotating shaft 1 by the centrifugal force, so that the fixed shaft 4 when the fixed shaft is positioned to correspond to the work surface. In the process of eccentricity and self-rotation, the corners of the coil spring continuously angularly formed in the spiral direction correspond to each other continuously, thereby effectively removing the rust and black skin from the surface as described above.

As an embodiment according to the present invention, the plurality of ring pins 14 installed in the coil spring 12, as described above, when the coil spring 12 is eccentric with respect to the fixed shaft 4, As shown in FIG. 7, the ring pin 14 is also directed toward the work surface with respect to the coil spring, so that one end of the hook pin 14 uniformly strikes the work surface with a strong frictional force. Remove rust and black skin.

The coil spring 12 may be a general coil spring having a circular cross-sectional area as shown in FIG. 6, or may be a coil spring having a rectangular cross-sectional area as described above, and the ring pin 14 may be spiraled from the coil spring. As long as it can be easily flowed, all are possible.

As a result, one embodiment enables the formation of a dense rough surface by performing a surface roughening operation with the removal of rust and black skin as a plurality of ring pins rather than coil springs.

The formation of the rough surface as described above makes it possible to implement a stable coating of the paint in the future.

Figure 1 is a side view showing an extract of a part of the blasting apparatus is applied to the present invention surface treatment unit,

2 is a perspective view showing a coil spring constituting the surface treatment unit according to the present invention;

Figure 3 is an enlarged partial view showing an enlarged surface treatment unit according to the present invention,

4 is a front view illustrating an operating state of the coil spring according to the present invention;

5 is a side view showing a part of a blasting apparatus to which a surface treatment unit is applied as an embodiment according to the present invention;

6 is a perspective view showing a state in which the ring pin is applied to the coil spring in Figure 5,

7 is a front view showing the operating state of the ring pin for the coil spring in FIG.

◎ Explanation of code for main part of drawing ◎

1: rotating shaft 2: spacer

3: fixed block 4: fixed shaft

10: surface treatment unit 12: coil spring

12a: knurling part 14: ring pin

Claims (3)

The space keeping member 2 and the fixed block 3 are provided on the rotating shaft 1 of the blasting apparatus, and are installed between the fixed shaft 4 penetrating the fixed block 3 to rotate the rotating shaft 1. In the surface treatment unit 10 for performing a roughening operation on the work target surface of the steel pipe and steel sheet, A coil spring 12 having a rectangular cross section is penetrated loosely on a fixed shaft 4 penetrating between the fixed blocks 3 to be roughened on a surface to be worked by a centrifugal friction action according to the rotation of the rotating shaft 1. Surface treatment unit characterized in that to form. 2. The surface treatment unit according to claim 1, wherein a knurling portion (12a) is formed on an outer circumference of the coil spring (12). The spiral pin of the coil spring 12 has a ring pin 14 for forming a rough surface on the surface to be worked by centrifugal force action according to the rotation of the coil spring from the fixed shaft (4). Surface treatment unit, characterized in that a plurality installed.

Images