JPS6320669B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polishing device suitable for forming hairlines on the surface of a long object.

In order to give a beautiful appearance to the surface of long building materials, etc., a hairline is created on the painted or plating surface by polishing with sandpaper or the like. For example, in the case of rain gutters, the surface of copper gutters or copper plating gutters is oxidized and colored in a muted tone, and then the surface is lightly polished in the longitudinal direction to partially expose the copper surface as a hairline, resulting in an excellent aesthetic appearance. may be given.

To form such a hairline, the colored layer is extremely thin, so delicate adjustment of the pressing force during polishing is required, and for aesthetic reasons, it is required to form a straight and uniform hairline in the longitudinal direction. It is.

This type of delicate adjustment has traditionally been done by hand, but as it requires a large amount of man-hours, mechanization is strongly desired. A hairline is formed by forming an abrasive layer on a holder having a polished surface, and mechanically moving the holder back and forth along the surface of the object to be polished. However, in order to provide holders along the periphery of the object to be polished and to apply a uniform pressing force, it is necessary to use multiple holders, which has the disadvantage of causing unevenness in the finish at the boundaries between the holders. Ta. There is also a method of rotating the wire brush and moving the wire brush or the object to be polished while pressing it against the surface of the object to be polished, but if the object to be polished is a curved surface, the hairline may become longer due to the bending of the brush due to the pressure. There was a drawback that it was not formed in a straight line in the direction.

The present invention eliminates the drawbacks of the conventional methods described above and provides a polishing device capable of finely adjusting a uniform straight hairline in the longitudinal direction. A flat elongated body is spirally wound to form a spiral body, the spiral body is fixed to the inner surface of a spiral support material, and an abrasive layer is provided on the inner surface of the spiral body. The polishing apparatus is characterized in that the hollow elongated body is connected to a pressurizing device that can adjust the amount of fluid injected.

Next, the polishing apparatus of the present invention will be explained with reference to the drawings.

FIG. 1 is an explanatory diagram showing an example of the usage mode of the polishing apparatus of the present invention, in which 1 is the polishing apparatus, 2 is the object to be polished, and 3 is the polishing apparatus.
4 is a cleaning device, and 5 is a drying device.

In the polishing device 1, a hollow flat elongated body 11 that can be elastically deformed is wound spirally at intervals to form a spiral body 12, and an abrasive layer 13 is formed on the inner surface of the spiral body 12. The hollow elongated body 11 is provided with a pressurizing device 14 that can adjust the amount of fluid injected into the hollow elongated body 11.
are connected by a conduit 15. The hollow flat elongated body 11 is a flat airtight cylinder made of an elastically deformable material such as rubber, rubberized cloth, synthetic resin, etc., and both ends are closed. This flat elongated body 11 is spirally wound to form a spiral body 12. Since the flat elongated body 11 is elastically deformable, the spiral body 12 is wound in order to maintain its shape in a spiral shape. It is preferable that the shaped body 12 is fixed to the inner surface of the spiral support member 16 by adhesion or the like.

If the support member 16 is a bendable metal plate, the spiral body 12 of any diameter can be easily formed by fixing the flat elongated body 11 in advance and bending it into a spiral shape. An abrasive layer 13 is formed on the inner surface of the spiral body 12, and this abrasive layer 13 may be attached with sand vapor or the like with an adhesive or with a planar fastener. Further, diamond sand, glass powder, or the like may be adhered to one surface of the flat elongated body 11 in advance using an adhesive.

Further, the pressurizing device 14 may be any device that can adjust the amount of fluid such as gas or liquid injected into the hollow flat elongated body 11, for example, pressurized air or the like by a compressor pump or the like. The liquid may be connected to the hollow flat elongated body 11 by a conduit 15 via a regulating valve.

Further, the supply and transfer device 3 for the object to be polished 2 is connected to the polishing device 1.
Any device may be used as long as it can supply and transport the object 2 to be polished along the central axis of the spiral body 12, and in the figure, the object 2 to be polished is transported by a pair of belt conveyors 31, 31. It is preferable that the objects 2 to be polished are connected and supplied by a connecting core member 22 in order to be continuously transported. Furthermore, 23,
23, . . . are for supporting the object to be polished 2 being transported by the rollers.

The cleaning device 4 is used to remove powder generated when the object 2 to be polished is polished by the polishing device 1 and to prevent clogging of the polishing material layer 13. Consisting of The water spray nozzle 41 may be placed at a position where it can spray water between the abrasive material layer 13 and the object 2 to be polished, and at the same time can wash off powder adhering to the object 2 after polishing. The drying device 5 dries the object 2 to be polished, and it is sufficient that the object 2 to be polished can be inserted into a heating box.

In order to polish a cylindrical workpiece 2 of a certain length using the above-described apparatus, the workpiece 2 is fed and transferred by the supply and transfer device 3 and inserted into the polishing device 1 . Abrasive layer 1 on the inner surface of the spiral body 12 of the polishing device 1
Pressurized fluid is supplied from the pressurizing device 14 to the inside of the flat elongated body 11 so that the flat elongated body 11 comes into contact with the surface of the object 2 to be polished with an appropriate pressing force. The object to be polished 2 is an abrasive layer 12
A hairline is formed in the longitudinal direction by polishing, and the degree of pressurization within the flat elongated body 11 is adjusted by checking the formation status of this hairline. To strengthen the hairline condition, pressurization may be used, but to weaken it, the fluid within the flat elongated body 11 may be discharged from the outlet. In order to supply the objects 2 to be polished in a connected manner, the object to be polished next to be supplied may be connected to the rear end of the object 2 to be polished, which is being fed and transported, by means of the connecting core material 22. The polishing position is sprayed with water by a water sprinkling device 4 to prevent clogging of the abrasive material layer 13 and to wash off powder generated by polishing, and then dried by a drying device 5. After drying, the object 2 to be polished is separated at the connection point and taken out.

In the present invention, it is preferable that the flat elongated body 11 is spirally wound two or more times to form the spiral body 12, and the spiral body 12 may have a rectangular shape, an elliptical shape, etc. However, a circular shape allows for a uniform hairline to be formed on the entire surface.

The polishing device of the present invention has the above-described configuration, in which an elastically deformable hollow flat elongated body is spirally wound to form a spiral body, and the inner surface of the spiral body is An abrasive layer is formed, and a pressurizing device that can adjust the amount of fluid injected is connected to the flat elongated body. The abrasive layer can be elastically expanded and pressed uniformly over the entire circumference of the object to be polished, and can be inserted through the object to be polished to form a uniform hairline around the entire circumference in the longitudinal direction. In addition, by adjusting the amount of fluid injected into the flat elongated body, the pressing force of the abrasive layer against the object to be polished can be adjusted to be strong or weak, the degree of hairline formation can be adjusted, and the diameter of the object to be polished can be adjusted. Even if the material is slightly different, it is possible to polish it by adjusting the amount of fluid injected.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing an example of a usage mode of the polishing apparatus of the present invention, and FIG. 2 is an enlarged perspective view showing a part of the polishing apparatus of the present invention in cross section. 1... Polishing device, 11... Hollow flat elongated body,
12... Spiral body, 13... Abrasive layer, 14...
Pressure device, 2... Object to be polished, 3... Supply transfer device, 31... Belt conveyor, 32... Connection core material, 4... Cleaning device, 41... Water nozzle, 5...
...Drying equipment.

Claims (1)

[Claims] 1. An elastically deformable hollow flat elongated body is spirally wound to form a spiral body, and the spiral body is fixed to the inner surface of a spiral support material. A polishing device, characterized in that an abrasive layer is formed on the inner surface of the spiral body, and a pressurizing device capable of adjusting the amount of fluid injected is connected to the hollow flat elongated body. 2. The polishing device according to claim 1, wherein the flat elongated body is wound twice or more into a spiral cylindrical shape to form a spiral body.