JPS6144783Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a brush that is used to remove burrs from and polish end faces of steel pipes, including stainless steel pipes, after cutting them.

To remove burrs from the end face of a steel pipe that has been cut to a predetermined size and perform polishing, as shown in Figure 1,
This is carried out by placing the steel pipe 1 on a table 2, and bringing the end face of the steel pipe into contact with the rotating surface of a wire brush 3, which is an annular disk in which a large number of wires are embedded. This contact is made with the cut end of the steel pipe intersecting the tip of the wire at a depth of approximately 5 mm.
This is done by moving the steel tube laterally, ie across the brush face. Polishing devices 8 in which the mounting shaft 4 of the brush 3 not only rotates on its own axis but also revolves are also commonly used.
There is no change in the contact described above. The brush used therein is generally a single metal wire with a wire diameter of 0.25 to 0.5 mm and a tensile strength of 150 kg/mm ² or more. If the wire diameter is increased, the deburring efficiency will be increased, but the polishing will be insufficient.On the other hand, if the wire diameter is decreased, the polished surface will be good, but the deburring efficiency will be poor. Therefore, there is a demand for a brush that has good deburring, cutting, and polishing properties.

A typical prior art is the wire buffing vehicle shown in Utility Model Application No. 54-10586. In this prior art, a wire buff layer made of metal wires extending in the radial direction is implanted at the end of a rotationally driven mounting shaft, and this wire buff layer includes a first buff layer made of high-hardness steel and a piano wire buff layer. It has a hybrid structure with the second buff layer.

In such prior art, a rubber sole or the like in a shoe manufacturing process to be buffed is buffed while being reciprocated in the width direction of the buffing surface. This poses a problem in that the metal wires constituting the buff layer are likely to break. In addition, when deburring metal pipes, etc. using such a wire buffing vehicle, there is a problem in that piano wire powder adheres to the metal pipes, etc., and this causes rust, resulting in so-called rust. .

The purpose of the present invention is to provide an improved deburring abrasive brush that improves deburring efficiency, prevents damage, and prevents rust from forming on metal pipes and the like to be deburred. .

In the present invention, a base plate 5 having a circular outer shape is fixed perpendicularly to the end of the mounting shaft 4 which is rotationally driven, and an annular concentric ring is formed on the surface of the base plate 5 on the free end side in the axial direction of the mounting shaft 4. Six groups of wire brush elements are arranged in a row, and each of the six groups of wire brush elements has a large number of wires folded in half at the center in the longitudinal direction, extending parallel to the axial direction, and the folded part is The radially inner inner layer element B is made of piano wire, the radially outer outer layer element A is made of stainless steel wire, and the radially inner layer element B is made of piano wire, and the outer layer element A is made of stainless steel wire. An inner cylinder 7b and an outer cylinder 7a are attached to the radially inner and outer sides of the wire brush element 6 group, and these inner cylinders 7
Deburring polishing brushes b and 7a are characterized in that they have a height approximately half the length of the wire and extend in the axial direction.

The present invention has been made in response to such demands, and as shown in FIGS. 2 to 4, a plurality of layers A and B are planted concentrically on the surface of the annular base 5. The wire materials of the six groups of wire brush elements are characterized in that the inner layer elements are piano wire and the outer layer elements are stainless steel wire (SUS). The present invention will be described in detail below with reference to the illustrated embodiments.

The annular base 5 is a disc-shaped body with a diameter (D) of about 280 mm, and has a circular notch in the center with a diameter (d) of about 80 mm, to which the rotating mounting shaft 4 is attached.
The polishing device 8 outside the present invention provides rotation or rotation and revolution. Five layers of wire brush elements 6 are concentrically and densely planted on the base surface from the outer circumferential side in a ring shape.

As shown in FIG. 4, the wire brush element 6 is
A large number of wires 6a having a length of about 100 mm are folded in half at the center, and the folded portions are bundled into a bowl-shaped bundle fitting 6b, which is vertically planted on the base plate 5 by a core wire 6c. The wire may be either a straight wire as shown in FIG. 4A or a wavy wire as shown in FIG. As for the types of wires, as mentioned above, the one used for the outer layer A is SUS, and the one used for the inner layer B is piano wire. In this example, the outer layer is 2, A1 and A2.
There are three layers on the outside, B1, B2, and B3, but the number can be changed as appropriate as a matter of design. The key is to use SUS wire for outer layer A and piano wire for inner layer B. This is because, as mentioned above, on the surface of this brush 3, the applied steel pipe can be moved parallel to the base with its end surface interlocking with the wire tip by about 5 mm.
When the inner and outer layers are arranged as described above, the end face of the steel pipe will always come into contact with the tips of the wires in the order of SUS wire - piano wire - SUS wire on the brush surface. As is well known, the hardness of piano wire is significantly higher than that of SUS wire. Therefore, in the above contact, the end face of the steel pipe is efficiently ground to remove burrs by the piano wire, and the roughened ground surface is then polished by contact with the SUS wire.
This will give you a good finish.

The material of SUS wire suitable for this kind of use is
SUS304, SUS631 or SUS430, thickness 0.25
~0.5mm is preferred. In addition, the material of the piano wire is SWPA, SWPB or hard steel wire SWA, SWB,
SWC thickness of approximately 0.3 to 0.5 mm is considered appropriate. In the figure, reference numeral 7a denotes an attachment outer tube, and 7b denotes an attachment inner tube, both of which have a height approximately half the length of the wire. This serves to tightly sandwich the element group and attach it to the base 5 in a stable state, and also to prevent the wire from breaking or bending.

The base 5 is fixed perpendicularly to the end of the mounting shaft 4 which is rotationally driven, and has a circular outer shape. The wire brush element 6 group has a large number of wires folded in half at the center in the longitudinal direction, and extends in parallel to the axial direction of the mounting shaft 4. The two-folded portions are bundled by the core wire 6c and planted on the base 5 as described above. The inner cylinder 7b and the outer cylinder 7a are attached to the base 5 adjacent to the group of brush elements 6 on the inside and outside in the radial direction. These inner cylinders 7b
and the outer cylinder 7a extend in the axial direction of the mounting shaft 4.

As described above, according to the present invention, since the inner layer element B is made of piano wire and the outer layer element A is made of stainless steel wire, steel pipes and the like to be deburred can be efficiently deburred with the piano wire having high hardness. The roughened ground surface that is subjected to the grinding process is polished by contact with the stainless steel wire, making it possible to remove burrs with high efficiency. Furthermore, if deburring is performed only with piano wire, powdered iron will adhere to the ground surface, which will cause so-called rust, but in this invention stainless steel wire is used as the outer layer element. , such iron content is scattered and the effect of rust prevention is also achieved. In this way, the present invention is quite different from the wire buffing vehicles described in connection with the prior art described above.

Furthermore, in the present invention, an inner cylinder 7b and an outer cylinder 7a are attached adjacent to the 6 groups of brush elements, and these have a height approximately half the length of the wire and extend in the axial direction of the mounting shaft. Therefore, the steel pipe to be deburred enters from the direction of the outer cylinder 7a, and at this time, the inner cylinder 7 is used to help prevent the brush from deflecting.
This is done by b. Next, when a steel pipe or the like to be deburred moves from the inner cylinder 7b toward the outer cylinder 7a, the brushes of the outer cylinder 7a are assisted in preventing deflection. In this way, the brush is prevented from breaking off at the base. Inner cylinder 7b and outer cylinder 7
a has a height that is approximately half the length of the wire, and those cylinders 7b and 7a are
All you have to do is change the length of the .

Furthermore, in the present invention, the wires are folded in half at the center in the longitudinal direction, bundled by the core wire 6c, and planted on the base 5, so that the wire installation work is relatively easy. In addition, even if a wire partially breaks, other wires are prevented from falling out one after another, and it can be used for a long period of time.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the steel pipe end face deburring and polishing method, Fig. 2 is a front view of the brush according to the present invention, and Fig. 3 is the second
4 and 4 are cross-sectional views of the brush element. 1 is a steel pipe, 2 is a table, 3 is a wire brush,
4 is a brush mounting shaft, 5 is an annular base, 6 is a wire brush element, 6a is a wire, 6b is a focusing fitting, 6c
7 is a core wire, 7 is an attached outer cylinder, 7b is an attached inner cylinder, and 8 is a polishing device.

Claims (1)

[Claims for Utility Model Registration] A base plate 5 having a circular outer shape is fixed perpendicularly to the end of the rotationally driven mounting shaft 4, and a ring-shaped base plate 5 is provided on the surface of the base plate 5 on the free end side in the axial direction of the mounting shaft 4. 6 groups of wire brush elements are arranged concentrically in a row, and each of the 6 groups of wire brush elements has a large number of wires folded in half at the center in the longitudinal direction and extending parallel to the axial direction. The inner layer element B on the inner side in the radial direction is made of piano wire, and the outer layer element A on the outer side in the radial direction is made of stainless steel wire. , The base 5 has an inner cylinder 7b and an outer cylinder 7 adjacent to the wire brush element 6 group and arranged radially inwardly and outwardly thereof.
a, and these inner cylinders 7b and 7a have a height approximately half the length of the wire and extend in the axial direction.