JPH1052998A - Decoration method for surface of material to be worked by rotary cutting tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decorate the surface of a material to be worked through the creation of decorative characteristic by generating a knife mark with a specific width when the surface of the material is worked by rotary cutting. SOLUTION: Parameters are set which are the state, number and array of cutting blades, the shape and diameter of a cutting edge, blade length and also, cutting conditions such as the number of rotation and depth of cut of a rotary cutting tool, the feed speed of a material and its form, e.g. combination of decorative laminated monolayer or multilayer material. If the width Wa of a knife mark formed by cutting is 5mm or less, it is too fine to be recognized as a mark for decoration, and it is recognized as a mere knife mark. On the contrary, if the width is 150mm or more, the feed speed of the material is too high for the number of rotation of the cutting tool, so that there are difficulties in the working. Thus it is possible to numerously create a decorative pattern on the surface of the material.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorating method for decorating a surface of a workpiece with a knife mark by cutting when performing processing similar to wood using a rotary cutting tool provided with a cutting edge on an outer periphery. .

[0002]

2. Description of the Related Art When processing wood or processing similar to wood using a rotary cutting tool, knife marks as shown in FIG. 13A are generated more or less. Under normal business practices, it was considered unsightly and of reduced quality. For this reason, the work which removes a knife mark by performing finish cutting or sanding etc. after cutting is performed, and this is common. When finishing without removing the knife mark, a cutting condition is selected so that the knife mark width W (FIG. 13b) is at least 1 mm or less, and the knife mark is cut so as not to be conspicuous. Although there is no problem with the presence or absence of a knife mark in the cutting at the rough cutting stage in the middle of the processing step, the cutting conditions are set in consideration of the cutting resistance and the like in the thickness cutting of the workpiece. Even in this case, the knife mark is usually W = 5 mm or less.

[0003]

In the finishing cutting, when the width of the knife mark is about 1 mm or more, the existence of the knife mark can be clearly confirmed, which is not preferable, although it depends on the kind of the workpiece. The concept is not decorative. The present invention has been made in view of such problems of the prior art, and actively uses the knife mark, which has been recognized as being undesirable and meaningless, by changing the viewpoint of the knife mark by 180 °. It is another object of the present invention to provide a decorating method for creating a decorative property on the surface of a workpiece by a rotary cutting tool.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a rotary cutting tool having a cutting edge formed on the outer periphery.
By generating a knife mark of 150 mm or less, for example, regular streaks are decorated on the surface of the workpiece.

[0005] Further, it is assumed that the cutting edge of the rotary cutting tool has a general shape. This knife mark can have a pattern in which large and small ellipses are arranged in a stepping stone shape, for example.

[0006] Further, the cutting blades in which the concavities and convexities of the entire mold shape are reversed are alternately arranged in the rotation direction. For example, a pattern in which an elliptical shape is regularly arranged at a grid intersection point can be obtained.

[0007] In addition, a rotary cutting tool having a cutting edge formed on the outer periphery is divided into a plurality of cutting blades in a blade length direction, and a cutting area is rotated so as to shift the mounting position of the adjacent cutting blades in the rotation direction to perform cutting. Thus, a decorative knife mark is formed on the surface of the workpiece. For example, a regular or irregular wavy pattern is formed.

Further, the cutting blades are equally divided in the blade length direction, and the mounting positions in the rotation direction are shifted at equal pitches.
For example, a regular wavy pattern can be formed.

The material to be processed is a single layer of a sheet-like decorative material or a multi-layer decorative adhesive material having different colors or fiber directions on the surface, and forms a knife mark deeper than at least one layer of the surface decorative material. Is what you do. For example, the pattern can be changed in color or color tone.

[0010] The cutting edge is shifted in the rotation direction, the cutting edge diameter is different. For example, large and small polka dots are formed.

After the surface of the workpiece is coated so as to fill the depth of the knife mark, a portion of the high portion of the knife mark on the surface of the workpiece is removed and exposed. For example, a striped pattern or a pattern in which cross stars are arranged can be formed.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to the state of the cutting edge of a rotary cutting tool, that is, the number and arrangement of the cutting edges, the shape of the cutting edge, the cutting edge diameter, and the like.
Combination of blade length and cutting conditions, ie the number of revolutions of the rotary cutting tool, the feed rate of the workpiece, the cutting depth of the rotary cutting tool, and the characteristics of the workpiece, such as a single-layer or multi-layer decoratively applied material , And an infinite number of decorative patterns are continuously formed on the surface of the workpiece by cutting.

[0013] The depth of the knife mark allows the decorative material below the surface cosmetic material to be exposed so that the decorative effect can be aimed at. If there is, it is more effective to change the direction, but it is not necessarily limited to this. When the layer is used decoratively with a large number of layer changes within the depth of the knife mark, the thickness of each layer is desirably 0.1 mm or less.

If the width of the knife mark by cutting is 5 mm or less, it is too small and can be recognized only as a simple knife mark. If it is 150 mm or more, the material feeding speed is too high with respect to the rotation speed of the tool, and there is a problem in machining. A desirable width is 10 mm or more that can be recognized as a knife mark having a predetermined size, and 50 mm or less when the outline of a knife mark formed by rotary cutting is clear and not blurred.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment 1 will be described with reference to a side view of FIG. 1 showing a rotary cutting tool, b showing a front view thereof, and FIG. 2 showing a knife mark on a cutting surface of a workpiece.
This is obtained by dividing the cutting blade 2 into four equal parts in the blade length direction, and the plane cylinder 1 on which this cutting blade is mounted is also divided into four equal parts.
A planer cylinder 1 having a center hole at the center, which is attached to a rotating shaft of a plane machine, is divided into four equal parts 1A, 1B, 1C, and 1D. The blade bags 1a are cut at two positions 180 ° apart from each other on the circumference, and the cutting blades 2 (2Aa, 2Ab... 2Da, 2Db) are attached to the cutting blade mounting surface of the blade bag 1a through the backing 4. ) Is fixed by bolts 5.

The cutting edge diameters of the cutting blades are all the same. The plane cylinders 1A, 1B, 1C, and 1D pass, for example, pins in the axial direction so that the phases of the four-piece plane cylinders are not shifted by shifting the rotational mounting positions of the cutting blades adjacent to each other in the cutting area by 45 ° pitch. Alternatively, the adhesive is fixed to the rotating shaft of the plane machine. The plane cylinder set in this set is a rotary cutting tool for substantially cutting two blades. Of course, it is also possible to form a set in which four identical disk-shaped cutters are stacked and fixed with their phases shifted sequentially.

The rotary cutting tool having the cutting diameter D of 125 mm according to the embodiment of the present invention has a rotational speed N of 2000.
r. p. FIG. 2 shows a decorative material obtained by cutting under a cutting condition of m, a feeding speed F of a workpiece to which no decorative material is stuck, F = 40 m / min, and a cut a = 0.25 mm. The knife mark has a width Wa = 10 mm, a depth d = 0.2 mm, and a regular wavy pattern that is stepwise displaced is engraved on the surface of the workpiece, thereby exhibiting decorativeness. In the present embodiment, the cutting blades are divided into four equal parts and the cutting blades are shifted at equal pitches. It becomes an array pattern. When the both are cut with a rotating cutting tool of unequal size, for example, a pattern as shown in FIG. 3 can be created.

[0018]

EXAMPLE 2 Example 2 will be described with reference to FIG. 4A showing the side view of the rotary cutting tool, FIG. 5B showing the front view thereof, and FIG. 5 showing the knife mark on the cutting surface of the workpiece. The rotary cutting tools of FIGS. 1A and 1B used in Example 1 with the same diameter of the cutting blades 2Aa and 2Ab (the same applies hereinafter) with the cutting edges attached so that the cutting edge diameters are different from each other. It is.

That is, as shown in FIG. 4b, in the same rotary cutting tool as in FIG. 1, the cutting edge diameter D1 of 3Aa of the two cutting edges is 125 mm, and the cutting edge diameter D2 of 3Ab is 124 mm.
A rotating cutting tool is used in which the above-mentioned cutters are alternately shifted by 180 ° and fixed by lamination. Rotational speed N = 2000 rpm
m, feed speed F = 4 of the work material to which no decorative material is stuck
FIG. 5 shows a decoration processed at a cutting condition of 0 m / min and a cut a = 0.6 mm or more. The cutting condition in this case is to perform sufficient cutting so that the cutting edge 3Ab having a small cutting edge diameter is cut. . The width W of the knife mark has two patterns, wide and narrow, and the depth d of the knife mark is different and the decorativeness is further enhanced.

[0020]

FIG. 6 is a side view of a rotary cutting tool, FIG. 6B is a front view of a first cutting edge 12a, FIG. 6C is a front view of a second cutting edge 12b, and FIG. A description will be given based on FIG. 7 showing marks. The cutter body 11 having a center hole through which the rotating shaft is inserted has a cutting blade brazed to a cutting blade mounting seat at a position equally divided on a circumference. This cutting edge has a waveform having a uniform pitch at the cutting edge, and the cutting edge 1 having a 3.5-peak waveform shown in FIG.
6a, the cutting edge 12b whose waveform is shifted by half a pitch in the blade length direction in the blade length direction is alternately brazed to a cutting edge mounting seat which is shifted by 90 ° on the circumference. Is what it is. Here, in order to shift the phase of a waveform by a half pitch, regularity is required for the waveform. If the cutting edge is formed by inverting the unevenness of the waveform, the waveform is opened because the waveform is sticking to regularity.

The cutting diameter D = 150 mm of the rotary cutting tool constructed as described above is used.
00r. p. m, material feeding speed F = 30 m / min,
The cut a = 0.15 mm in order to form a shallow cut to cut a part of the surface, and the work material is a decorative material having a surface of a single layer of 0.1 mm applied on the surface.

The one cut under the above conditions can be decorated with a pattern as shown in FIG. Maximum width Wb of knife mark =
9.5 mm and depth d = 0.15 mm. Therefore, 0.
Since the base material is cut by 0.5 mm through the 1 mm thick decorative material, double oval concave portions having different shades appear, and the decorative effect is higher. In this case, the pitch of the elliptical concave portions was 15 mm. Various patterns appear by changing the shape of the waveform. Further, the decorative effect is further enhanced by using a single-layered decorative material as a color plate or two layers of different color plates. A decorative effect can also be obtained using laminated decorative materials having different fiber directions.

[0023]

FIG. 8 shows knife marks on the cutting surface when Example 4 was cut using the rotary cutting tool shown in FIG.
It will be explained based on the following. In this case, the cutting edge 12a, 1 of the waveform
2b maximum cutting diameter D5 = 150mm, minimum cutting diameter D6 =
FIG. 8 shows a decorative material processed under a cutting condition of 147 mm, a rotation speed N = 2000 rpm, a feeding speed F of a workpiece to which no decorative material is stuck, F = 40 m / min, and a cut a = 0.35 mm or more. The ridge runs in a grid pattern, with the intersection of the ridges being the highest. In each of the grids, a gentle concave portion is formed at the center of the grid.

[0024]

EXAMPLE 5 Example 5 will be described with reference to a of FIG. 9 showing a side view of a rotary cutting tool, b, c, d, and e showing a front view of each cutting edge, and FIG. 10 showing a knife mark on a cutting surface. I do. The rotary cutting tool has cutting edges 13a, 13b, 13 at the four cutting edge mounting seats of the 3.5 ridges of the cutter shown in FIG.
C and 13d were used in which the cutting diameter was gradually and gradually reduced.

That is, the maximum cutting diameter of the cutting edge 13a is D11 =
150 mm, the maximum cutting diameter of the cutting edge 13b is D21 = 14
9.9 mm, the maximum cutting diameter of the cutting edge 13c is D31 = 14
9.8 mm, the maximum cutting diameter of the cutting edge 13d is D41 = 14
9.7 mm, and the minimum cutting diameter of the cutting edge 13a is D12 = 1.
47 mm, the minimum cutting diameter of the cutting edge 13b is D22 = 146.
9 mm, the minimum cutting diameter of the cutting edge 13c is D32 = 146.8.
mm, the minimum cutting diameter of the cutting edge 13d is D42 = 146.7m
m, the number of rotations N = 1000 rpm, the feeding speed F of the workpiece to which no decorative material is stuck, F = 30 m / min, and the cutting edge 13a
FIG. 10 shows the result of the decoration processing under the cutting conditions of a = 0.2 mm.

The cutting edge is cut so that the cutting edge having the smallest diameter slightly hits the surface of the workpiece, and a polka dot pattern in which large and small circles are sequentially arranged appears. By making the size of the cutting diameter irregular without making it smaller sequentially, it is possible to make the polka dots irregular in size.

[0027]

[Embodiment 6] A method of painting a cut surface of a decorated workpiece, a method of applying a thin transparent or translucent paint such as a varnish or a lacquer which does not erase a knife mark, or a method of applying a thin paint on a knife mark. Apply opaque paint to the surface. For example, an opaque paint is applied to the decoration processing surface of FIG. 2 so as to fill the depth d of the knife mark, and then the surface of the workpiece is smoothly cut or sanded, so that a stripe pattern as shown in FIG. 11 appears. In addition, the use of the colored paint can further enhance the stripe pattern. Of course, it is free to apply a transparent paint on the streaks. If the knife mark is cut smoothly, an orderly and regular pattern will be obtained, but if it is not cut and sanded smoothly, an irregular and interesting pattern will appear again. Further, an opaque paint is applied to the surface of the knife mark shown in FIG. 8 and a portion where the ridge line intersects is smoothly cut or sanded.
The cross star pattern shown in Fig. 2 appears in an orderly manner.

[0028]

According to the first aspect of the present invention, for example, a regular streak pattern can be processed and decorativeness is recognized. According to the second aspect, for example, it is possible to process a pattern in which large and small ellipses are regularly arranged in a stepping stone shape, and the decorativeness is recognized. According to the third aspect, for example, it is possible to process a pattern in which elliptical shapes are regularly arranged on a grid intersection, and the decorativeness is recognized. According to the fourth aspect, for example, irregular or regular wavy pattern processing is possible, and decorativeness is recognized. According to the fifth aspect, for example, a regular wavy pattern can be processed, and decorativeness is recognized. According to the sixth aspect, for example, the patterns of the first to fifth aspects can be changed in color or color tone to enhance decorativeness. According to a seventh aspect, for example, a pattern in which the top of the wavy pattern is widened or a polka dot pattern in which large and small ellipses are arranged regularly or irregularly appears. According to the eighth aspect, for example, it is possible to process a stripe pattern or a pattern in which cross stars are arranged, and the decorativeness is recognized.

[Brief description of the drawings]

FIG. 1 is a rotary cutting tool formed by shifting a cutting edge on an outer periphery equally and sequentially in a blade length direction and a rotation direction, respectively.
Is a side view and b is a front view.

FIG. 2 is a view showing a knife mark of a workpiece according to the first embodiment using the rotary cutting tool of FIG. 1;

FIG. 3 is a view showing a knife mark of a workpiece in Example 1 in which the cutting blade of the rotary cutting tool in FIG. 1 is displaced unequally in the blade length direction and the rotation direction.

FIG. 4 is a combination cutter in which single cutters having cutting blades having different cutting diameters provided at two equally-spaced positions on the outer periphery are stacked with the cutting edges alternately shifted by 180 °, wherein a is a side view and b is a front view.

FIG. 5 is a view showing a knife mark of a workpiece according to a second embodiment using the rotary cutting tool of FIG. 4;

FIGS. 6A and 6B show a cutter provided with a full-form cutting edge at four equal parts on the outer periphery, where a is a side view, b is a front view of a first cutting edge, and c is a front view of a second cutting edge.

FIG. 7 is a view showing a knife mark of a workpiece according to a third embodiment using the rotary cutting tool of FIG. 6;

FIG. 8 is a view showing knife marks on a workpiece in the fourth embodiment using the rotary cutting tool of FIG. 6;

FIG. 9 is a cutter provided with full-form cutting blades having cutting diameters sequentially changed at four equally-spaced positions on the outer periphery, where a is a side view, b, c, and c.
d and e are front views of each cutting blade.

FIG. 10 is a view showing a knife mark of a workpiece in Working Example 5 using the rotary cutting tool of FIG. 9;

11 is a view showing a decorative pattern of Example 6 in which an opaque paint is applied to the knife mark of FIG. 2 to cut the surface deeply and smoothly.

FIG. 12 is a view showing a decorative pattern of Example 6 in which an opaque paint is applied to the knife mark in FIG. 8 and the surface is cut shallowly and smoothly.

13A is a diagram showing a general knife mark, and FIG. 13B is a partially enlarged view of FIG.

[Explanation of symbols]

1A, 1B, 1C, 1D Split plane cylinder (or cutter body) 2Aa, 2Ab, 2Ba, 2Bb, 2Ca, 2Cb, 2
Da, 2Db, 3Aa, 3Ab Cutting blade 11 Cutter body 12a (First) cutting blade 12b (Second) cutting blade 13a, 13b, 13c, 13d (Overall type) cutting blade

Claims (8)

[Claims] 1. A width W of 5 m when a surface of a workpiece is rotationally cut using a rotary cutting tool having a cutting edge formed on an outer periphery.
A method for decorating a surface of a workpiece with a rotary cutting tool, wherein the surface of the workpiece is decorated by generating a knife mark of m or more and 150 mm or less. 2. The method according to claim 1, wherein the cutting edge of the rotary cutting tool has a general shape. 3. The method for decorating the surface of a workpiece with a rotary cutting tool according to claim 2, wherein the cutting blades having the reverse of the asperities of the overall shape are arranged alternately in the rotation direction. 4. A rotary cutting tool having a cutting edge formed on an outer periphery thereof is divided into a plurality of cutting blades in a blade length direction, and a cutting area is rotated to rotate a tool in which mounting positions of adjacent cutting blades are shifted in a rotation direction. A decorative knife mark is formed on the surface of the workpiece by cutting the surface of the workpiece, and the method for decorating the surface of the workpiece with the rotary cutting tool according to any one of claims 1, 2, and 3. . 5. The method for decorating a surface of a workpiece with a rotary cutting tool according to claim 4, wherein the cutting edge is divided equally in the blade length direction, and the mounting positions in the rotating direction are shifted at equal pitches. 6. The material to be processed is a single layer of a sheet-like decorative material or a multi-layer decorative adhesive material having different colors or fiber directions on its surface, and a knife mark deeper than at least one layer of the surface decorative material is provided. Claims 1, 2, 3, and 3
A method for decorating a surface of a workpiece with the rotary cutting tool according to any one of claims 4 and 5. 7. A method for decorating a surface of a workpiece with a rotary cutting tool according to any one of claims 1 to 6, wherein the cutting edge shifted in the rotating direction has a different cutting edge diameter. 8. The method according to claim 1, wherein after the surface of the workpiece is coated so as to fill the depth of the knife mark, a part of a high portion of the knife mark on the surface of the workpiece is removed and exposed. , 2,3,4,5,6,7. A method for decorating a surface of a workpiece with a rotary cutting tool according to any one of the above.