JPS62114881A - Flexible polishing cylinder - Google Patents

Abstract

PURPOSE:To keep a polishing piece in contact with the entire surface of a work for complete elimination of non-uniformity of grinding to achieve uniform polishing of the entire surface, by arranging many polishing pieces which are made flexible due to cuts formed in width direction, spirally along the peripheral surface of a cylinder. CONSTITUTION:By mounting an attaching member 8 to the remaining side of a polishing belt 5 made flexible by providing cuts 6 with a portion partially remaining widthwise, inserting this portion in a spiral groove 4 formed along the peripheral surface of a cylindrical barrel 1, and winding this polishing belt 5 around the cylindrical barrel 1, the polishing belt 5 becomes accustomed to the cylindrical barrel 1, bending flexibly from the cut portion 6 and a flexible polishing cylinder A is formed on which polishing pieces 7 are arranged spirally. When the cylindrical barrel 1 this flexible cylinder A is rotated after being mounted to an axis 2, each of the abrasive pieces 7 arranged spirally along the peripheral surface of this cylindrical barrel 1 is connected to one another in series, therefore, each polishing piece comes in contact with its corresponding portion successively as it is rotated, thus the entire surface of a work is polished evenly.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention provides a flexible polishing tube suitable for polishing uneven surfaces of wooden products and the like. More specifically, the present invention relates to a flexible polishing cylinder in which polishing pieces are arranged spirally around a cylinder to enable polishing without local unevenness.

(Prior art) Conventionally, an elongated polishing piece 9 was polished on a cylinder 10 as shown in Figure 11. The abrasive pieces are arranged in an annular shape at small intervals around the circumference, and the abrasive pieces described above can bend freely and adapt well to uneven surfaces. It was possible to polish a surface with irregularities, which had been impossible to process, accurately depending on the shape of the surface.

(Problems to be Solved by the Invention) However, in the conventional flexible grinding M-tube described above, since the abrasive pieces 9 are arranged in an annular manner, gaps are inevitably created between each abrasive piece 9 during installation. As the part is not polished enough,
There is a problem in that polishing unevenness occurs on the processed surface after polishing.

The present invention was made to solve the above-mentioned conventional problems, and by arranging the abrasive pieces in a spiral around the circumferential surface of a cylinder, the abrasive pieces can be uniformly applied to the entire machined surface. ,
The purpose of the present invention is to provide a flexible polishing tube that does not cause polishing unevenness at all.

(Means for Solving the Problems) The flexible polishing tube according to the present invention includes a cylinder 1 which is attached to a shaft 2 and rotated, as shown in the embodiments shown in FIGS. 1 to 9 of the drawings.
A spiral groove 4 is formed on the circumferential surface of the cylinder 1, and a notch 6 with a portion remaining in the width direction is made so that it can be bent freely, and the uncut side is fitted into the spiral groove 4 of the cylinder 1. The polishing belt 5 has a polishing band 5 which is fixed in place and has polishing pieces 7 arranged spirally on the circumferential surface of the cylinder 1.

(Function) The flexible polishing tube configured as described above has a notch 6 in which a portion remains in the width direction as shown in FIGS. 4 and 6 so that the polishing belt 5 can be bent freely. Figures 4 and 6 are on the uncut side.
As shown in Fig. 8, the member 8 is attached, and this part is fitted into the spiral groove 4 formed on the circumferential surface of the cylinder 1 as shown in Fig. 1, and the member 8 is wound around the cylinder 1. As it is worn, the polishing band 5 freely curves from the notch 6 and conforms to the cylinder 1, and the polishing strips 7 are arranged spirally on the circumferential surface as shown in FIGS. 1 and 2.
A flexible polishing tube A as shown in the figure is formed.

Therefore, when the cylinder 1 of this flexible polishing tube A is attached to the shaft 2 and rotated, the polishing pieces 7 that can be arranged spirally are connected to the circumferential surface of the cylinder 1, so that each polishing piece 7 is As it rotates, it sequentially contacts its corresponding part and uniformly polishes the entire surface to be machined.Moreover, each polishing piece 7 is elongated and flexible, so if the surface to be machined has irregularities, these irregularities will be removed. By freely deforming the polishing material to fit the surface of the surface, the polishing material can be applied evenly to each part of the unevenness, and the unevenness can be polished evenly and reliably.

(Example) An example of the implementation of the flexible polishing tube according to the present invention will be described below based on the drawings.

Figures 1 to 9 show the first embodiment, and in the figures, 1 is a cylinder, with a hole 3 in the center for fitting the rotating shaft 2 as shown in Figures 1 and 2. the third fulfillment body or the third
Attach end plates b to both ends of pipe a as shown in the figure,
A hollow body having a hole 3 into which the shaft 2 is fitted is used in the end plate (b), and spiral grooves 4 are formed at a fine pitch on the circumferential surface of the body as shown in FIG.

Incidentally, this cylinder 1 is formed using an inexpensive material such as a paper tube,
A polishing band, which will be described later, is permanently attached to the groove 4 by adhesive, and if the polishing ability deteriorates, the cylinder 1 can be discarded as a disposable type.

Reference numeral 5 denotes an abrasive band, and one long one is used, and a notch 6 in the width direction is made in the abrasive band 5 leaving only a part as shown in FIG. Polishing band 5
As shown in Fig. 8, the polishing band 5 is folded in two, and as shown in Fig. 8, a cut 6 in the width direction is made in the width direction leaving only a part of the folded side. In order to form the polishing piece 7 and to wrap the polishing band 5 around the cylinder 1, it is made to be freely curved.

Reference numeral 8 denotes a mounting member that is attached to the uncut side of the polishing band 5 described above, and in the case of a single polishing band 5, it is made of a flexible material and has a rectangular cross section as shown in FIGS. 4 and 5. The strip material is fixed to one side of the uncut portion of the polishing band 5 by adhesive or the like, and in the case of a bi-folded abrasive band 4, the strip material is fixed to one side of the uncut portion of the polishing band 5. The abrasive band 5 can be formed by using an inserted wire made of metal or plastic, or by using a U-shaped groove made of thin sheet metal or the like that sandwiches the folded portion as shown in FIGS. 8 and 9. Wrap it around the spiral groove 4 of the cylinder 1 along with the uncut side while sequentially fitting it from one end,
When this mounting member 8 and the polishing band 5 are fixed to the cylinder 1 by means such as adhesive, binding, press fitting, etc., a large number of polishing pieces 7 of the polishing band 5 are fixed.
Flexible polishing cylinders A are arranged spirally around the circumferential surface of the cylinder 1.

FIG. 10 shows a second embodiment, in which a circular cylinder 1 is formed with one pitch of a spiral groove 4, and a polishing band 5 is attached with a mounting member 8 in the uncut portion of the groove 4. A flexible polishing tube of any length can be obtained by winding the pitch to make one unit and combining the required number of units, and its function is the same as that of the first embodiment. .

(Effects of the Invention) The flexible abrasive cylinder of the present invention has a large number of flexible abrasive pieces cut in the width direction arranged spirally around the circumferential surface of the cylinder, and the abrasive pieces are spread over the entire processed surface. Because I made uniform contact with
Polishing unevenness is completely eliminated, allowing uniform polishing of the entire surface.

By adjusting the lead of the spiral groove on the cylinder, the arrangement density of the abrasive pieces changes, and the strength of the abrasive amount can be freely adjusted.

The spirally arranged abrasive pieces uniformly contact each part of the irregularities on the processed surface, and due to their flexibility, they adapt well to the irregularities and perform uneven polishing evenly.

Since the abrasive band is wound into the groove of the cylinder, it can be easily and reliably spirally wound and does not move during operation.

It has the following unique effects.

[Brief explanation of drawings]

FIG. 1 is a partially longitudinal front view showing a first embodiment of a flexible polishing tube according to the present invention. Figure 2 is a side view of the same as above. FIG. 3 is a partially longitudinal front view showing another example of the cylinder in the same as above, and FIG. 4 is a perspective view of a part of the polishing zone in the above. FIG. 5 is a longitudinal sectional front view of the same as above. FIG. 6 is a partial perspective view showing another example of the polishing band in the same as above. FIG. 7 is a longitudinal sectional front view of the same as above. FIG. 8 is a partial perspective view showing another embodiment of the polishing belt same as above. FIG. 9 is a longitudinal sectional front view of the same as above. FIG. 10 is a front view showing the second embodiment, and FIG. 11 is a front view of a conventional flexible polishing tube. In the figure, 1 is a cylinder, 2 is a shaft, 4 is a groove, 5 is a polishing band, and 6
is a notch, and 7 is a polished piece. A/ No. 1 horse ward

Claims (1)

[Scope of Claims] A cylinder that is attached to a shaft and rotates, a spiral groove formed on the circumferential surface of the cylinder, a cut that remains partially in the width direction so that it can be bent freely, and the uncut portion of the cylinder. A flexible polishing tube, characterized in that it is provided with a polishing band which is wound around and fixed in a spiral groove of the cylinder, and which arranges polishing pieces in a spiral shape on the circumferential surface of the cylinder.