JP2003311526A - Tool unit and cutting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool unit and a cutting method, which can cut a laminated body provided with a protecting member on a surface of a material without staining or damaging the surface of the material. <P>SOLUTION: When the tool unit 3 disposed on the surface of the laminated body is driven in the cutting direction, two cutting edges 4, 4 arranged on a second cutting tool 2 so as to form a V shape in a plane perpendicular to the cutting direction produce two cut grooves mainly on a second workpiece. In this case, burrs and projections, which may cause peeling of the second workpiece, are not produced in the neighborhood of the cutting surface to form the cut grooves outside the cutting edges 4, 4. After that, the region between the two cut grooves of the second workpiece is removed by a first cutting tool 1, and also a first workpiece between the two cut grooves is cut. When the first workpiece is cut, the second workpiece does not peel from the first workpiece. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a tool unit and a cutting method.

[0002]

2. Description of the Related Art In general, a material having a smooth surface is provided with a protective member in the form of a thin film in order to prevent the smooth surface from being scratched during transportation or processing. For example, an adhesive resin film is attached to a surface of a stainless plate that has been subjected to surface grinding treatment or a surface of an aluminum material that has been subjected to surface finishing. Also, paper is attached to the smooth surface of an acrylic plate or a vinyl chloride resin plate.

Conventionally, when cutting a material on which the protective member is arranged, the protective member is once peeled off to expose a smooth surface, and then the smooth surface is cut with a grooving tool or a cutter, and thereafter, A cutting method is employed in which the peeled protective member is attached back to a smooth surface.

[0004]

However, in the above-mentioned conventional cutting method, the smooth surface of the material exposed during cutting is liable to be damaged by chips or contact with another material. There is.

FIGS. 9 (a), 9 (b), 9 (c) and 9 (d) are
It is a figure showing the above-mentioned conventional cutting method. When cutting a laminate having a material 125 as shown in FIG. 9A and a protection member 126 provided on the smooth surface of the material 125, the protection member 126 is peeled off to remove the smooth surface of the material 125. Exposed (FIG. 9 (b)), this exposed material 125
A V-shaped groove is formed on the smooth surface of (FIG. 9 (c)). At this time, the chips 127 remain on the surface of the material 125. And
As shown in FIG. 9D, when the protective member 126 is attached back to the smooth surface of the material 125, the chips 127 remain between the smooth surface and the protective member 126 to cause contamination. Due to this dirt, the protective member 126 is easily peeled off from the material 125, and as a result, the smooth surface of the material 125 is easily scratched.

In order to avoid such dirt and scratches on the material 125, it is conceivable to cut the material 125 and the protective member at the same time while the protective member 126 is arranged without being peeled off. FIG. 10 shows an acrylic plate 128 as a material.
With the protective member 126 attached, the cutter 129
It is the figure which showed a mode that it cuts by. As shown in FIG. 10, the cutter 129 is moved to the left to move the acrylic plate 1
When attempting to cut the protective member 126 together with 28, the protective member 126 is peeled off without being cut like the acrylic plate 128, and wrinkled chips 130 are generated.

The protective member 126 which has been peeled off is
Even if the acrylic plate 128 is attached to a smooth surface after being cut, it is easily peeled off from the acrylic plate 128 because the adhesiveness is deteriorated due to dirt and the like. Therefore, in the manufacturing process of the product manufactured by using the acrylic plate 128, the portion of the protective member 126 that has been attached back to the acrylic plate 128 is peeled off, and the peeled portion is caught in the manufacturing apparatus and the manufacturing line is stopped. There is a risk of causing inconvenience.

Therefore, an object of the present invention is to provide a tool unit and a cutting method capable of cutting a laminate having a protective member on the surface of a material without polluting or damaging the surface of the material. .

[0009]

To achieve the above object, a tool unit of the present invention comprises a first work piece and at least one second work piece provided on the first work piece. A tool unit for cutting a laminated body consisting of: a first cutting tool for mainly cutting the first workpiece,
In front of the cutting direction of the first cutting tool, the first cutting tool
Prior to the cutting of the cutting tool, a second cutting tool that mainly cuts the second workpiece is provided, and the second cutting tool is the above-mentioned in a plane orthogonal to the cutting direction of the second cutting tool. It is characterized in that it is provided with two cutting blades that are inclined so that the distance from each other increases with increasing distance from the surface of the second workpiece.

According to the above structure, when the tool unit is moved in the cutting direction to cut the laminated body, first, the second workpiece of the laminated body is the two cutting blades of the second cutting tool. Is cut by. At this time, since the two cutting blades of the second cutting tool are inclined so that the distance between them becomes larger as the distance from the surface of the second workpiece increases, the two cutting edges are formed by this second cutting tool. Among the cutting surfaces, for example, ridges and burrs do not occur on the side opposite to the side where the two cutting blades face each other, that is, in the vicinity of the cutting surface formed outside the two cutting blades. Then, the first workpiece is cut by the first cutting tool. Therefore, the laminated body is cut by the tool unit without the protrusions or burrs that cause the second work piece to be peeled off, so that the surface of the first work piece is stabilized and the second work piece is stable. Protected by the work piece. As a result, dirt and scratches on the surface of the first workpiece can be prevented easily and effectively. Further, since the second work piece is cut by the tool unit prior to the cutting of the first work piece, the first work piece and the second work piece as in the conventional case should be cut at the same time. As a result, the second work piece is not peeled off and wrinkled chips are not generated.

In the tool unit of one embodiment, the two cutting blades of the second cutting tool are arranged so as to be offset from each other in the cutting direction of the second cutting tool.

According to the above-described embodiment, when the laminate is cut by the tool unit, the second workpiece is first cut by the second cutting tool. At this time, since the cutting blades of the second cutting tool are arranged so as to be displaced in the cutting direction, one of the two cutting blades forms the first cutting surface, and then the other cutting blade forms the first cutting surface. A second cutting surface is formed so as to face the first cutting surface. That is, two cutting surfaces are sequentially formed by the second cutting tool. By intersecting the lower ends of the two cutting surfaces with each other, the part between the two cutting surfaces is completely removed. Therefore, the cutting load of the first cutting tool that follows the second cutting tool is reduced. Further, by completely removing the portion between the two cutting surfaces, the ridges, burrs and the like generated in the laminate are effectively removed.

In the tool unit of one embodiment, the cutting blade of the second cutting tool is a rotary blade.

According to the above embodiment, since the rotary blade is hard to be chipped, the second cutting tool provided with the rotary blade and thus the tool unit can have a long life.

In the tool unit of one embodiment, the second cutting tool has the second cutting tool with the cutting blade of the second cutting tool.
An angle formed by a cutting surface formed on the opposite side of the two cutting edges facing each other among the cutting surfaces formed on the workpiece and the surface of the second workpiece connected to the cutting surface is 90. It is formed to be larger than the degree.

According to the above embodiment, of the cutting surfaces formed on the second workpiece by the second cutting tool, the side opposite to the side where the two cutting edges face each other, that is, the two cutting edges. Since the angle formed by the cutting surface formed on the outer side of the and the surface of the second workpiece is greater than 90 degrees,
In the vicinity of the cutting surface, there are almost no raised portions or burrs due to the cutting by the second cutting tool. Therefore, it is difficult for the second workpiece to be peeled off from the first workpiece, so that the surface of the first workpiece is effectively protected from dirt and scratches. Here, the angle formed by the cutting surface and the surface of the second workpiece is such that the portion sandwiched between the cutting surface and the surface of the second workpiece is orthogonal to the cutting direction of the tool unit. It means the angle made in the plane.

In the tool unit of one embodiment, a cutting line of the cutting blade of the first cutting tool is located between two cutting lines of two cutting blades of the second cutting tool in a plane.

According to the above embodiment, when the laminated body is cut by the tool unit, the two cutting edges of the second cutting tool form two cutting lines on the laminated body.
Then, the laminate is cut by the first cutting tool,
The cutting line formed by the cutting blade of the first cutting tool is located between the two cutting lines formed by the second cutting tool. At this time, the first workpiece is mainly cut by the first cutting tool, and at the same time, the second workpiece in the portion between the two cutting lines is removed. Therefore, as in the prior art, the second work piece is peeled off before cutting the first work piece, and the second work piece is cut again after the first work piece is cut.
Since it is not necessary to attach the workpiece, the second workpiece of the present embodiment is difficult to peel off. As a result, stains and scratches on the surface of the first workpiece can be effectively and easily prevented. here,
The cutting line refers to a line represented by the deepest part of the cutting groove formed in the workpiece when cut with a cutting tool.

In the tool unit of one embodiment, the cutting line of the cutting blade of the first cutting tool and the two cutting lines of the two cutting blades of the second cutting tool substantially coincide with each other in a plane.

According to the above-mentioned embodiment, when the laminate is cut by the tool unit, the second cutting tool is mainly used so that the cutting lines of the two cutting blades of the second cutting tool substantially coincide with each other. The second work piece is cut. After that, the first
The first work is cut by the cutting tool such that the cutting line of the cutting blade of the first cutting tool coincides with the cutting line of the second cutting tool. When the first cutting tool cuts the first work piece, the first cutting tool moves to the second
Do not cut the work piece. Therefore, it is not necessary to peel off the second work piece before cutting the first work piece and to attach the second work piece again after cutting the first work piece as in the conventional case. The second work piece of this embodiment is hard to peel off from the surface of the first work piece. as a result,
The dirt and scratches on the surface of the first workpiece are effectively and easily prevented.

The cutting method of the present invention comprises a first work piece and at least one second work piece provided on the first work piece.
A cutting method for cutting a laminated body including a work piece, wherein the second work piece forms an angle greater than 90 degrees with respect to a surface of the second work piece, and a depth direction And a distance between the two cutting surfaces of the second work piece so as to form two cutting surfaces having a smaller distance from each other toward the cutting surface. And a step of cutting the first workpiece between the two cutting surfaces formed on the second workpiece so as to make a smaller cutting width.

According to the above construction, the second work piece is mainly cut to form an angle of more than 90 degrees with respect to the surface of the second work piece, and the second work piece is mutually cut in the depth direction. Two cutting surfaces are formed that reduce the separation distance. At this time, since the cutting surface is cut at an angle larger than 90 degrees with respect to the surface of the second workpiece, no protrusions or burrs are formed in the vicinity of the cutting surface. Then, the first workpiece between the two cutting surfaces is cut so that the cutting width is smaller than the distance between the two cutting surfaces of the second workpiece. Therefore, it is possible to remove the second
The work piece is not cut and peeled off, and wrinkle-shaped chips are not generated. In addition, since the protrusions and burrs that cause the peeling of the second workpiece do not occur, the surface of the first workpiece is stably protected from scratches and dirt by the second workpiece. Here, the angle formed by the cutting surface with respect to the surface of the second workpiece is defined as a plane sandwiched between the surface of the second workpiece and the cutting surface in a plane orthogonal to the cutting direction. Means an angle.

According to the cutting method of the present invention, a first work piece and at least one second work piece provided on the first work piece are provided.
A cutting method for cutting a laminated body including a work piece, comprising a first cutting surface that reaches the first work piece and makes an angle of more than 90 degrees with respect to the surface of the second work piece. A step of cutting the first work piece and the second work piece so as to form, and connecting to the vicinity of the lower end of the first cutting surface and more than 90 degrees with respect to the surface of the second work piece. The first work piece and the second work piece are cut to form a second cutting surface forming a large angle, and a substantially V-shaped cross section is formed between the first cutting surface and the second cutting surface. And a step of forming a groove.

According to the above construction, the first and second workpieces are cut to form the first cutting surface which makes an angle greater than 90 degrees with the surface of the second workpiece. It is formed. Protrusions, burrs, etc. due to cutting do not occur in the vicinity of the first cutting surface. Subsequently, a second cutting surface forming an angle of more than 90 degrees with respect to the surface of the second workpiece is formed such that the lower end of the second cutting surface is connected to the vicinity of the lower end of the first non-cutting surface. To be done. Protrusions and burrs due to cutting do not occur in the vicinity of the second cutting surface. Therefore, the groove having a V-shaped cross section defined by the first cutting surface and the second cutting surface is formed without producing a protrusion or a burr in the vicinity of the groove. As a result, the peeling of the second workpiece due to the bumps and burrs of the laminated body is effectively prevented,
The surface of the first workpiece on which the second workpiece is arranged is
Scratches and dirt are stably prevented. Here, the angle formed by the first and second cutting surfaces with respect to the surface of the second workpiece is a portion sandwiched between the surface of the second workpiece and the first cutting surface, and , Means the angle formed by a portion sandwiched between the surface of the second workpiece and the second cutting surface in a plane orthogonal to the cutting direction.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

(First Embodiment) FIG. 1 is a view showing a tool unit 3 according to a first embodiment of the present invention. The tool unit 3 is a tool unit for cutting a laminated body including an acrylic plate as a first work piece and a protective paper as a second work piece provided on the surface of the acrylic plate. The left direction in FIG. 1 is the cutting direction of the tool unit 3. In this tool unit 3, a first cutting tool 1 that mainly cuts the acrylic plate and a second cutting tool 2 that mainly cuts the protective paper prior to the first cutting tool 1 are arranged. There is. The second cutting tool 2 has two cutting blades 4,
4 is provided. The first cutting tool 1 and the second cutting tool 2 are
In a plane, the two cutting blades 4, 4 of the second cutting tool
The first cutting tool 1 is provided between the two cutting lines formed by
It is arranged so that the cutting line formed by is located.
In addition, the two cutting blades 4 and 4 provided in the second cutting tool 2
Are inclined in a plane orthogonal to the cutting direction of the tool unit so as to increase the distance from each other with increasing distance from the surface of the protective paper, and are arranged in an inverted V shape. In this tool unit 3, the first cutting tool 1 and the second cutting tool 2 are replaceable,
The distance between the cutting blades 4, 4 of the second cutting tool 2 can be adjusted according to the size of the first cutting tool 1, and the cutting direction of the cutting blades 4, 4 of the second cutting tool 2 can be adjusted. It is possible to change the angle of inclination of the plane perpendicular to.

2 (a), (b) and (c) are process diagrams showing a cutting method for cutting the laminated body using the tool unit 3, and the cutting direction of the tool unit 3 is the plane of the paper. The illustration is made so as to be at a right angle. The tool unit 3 is arranged on the surface of the laminated body 7 including the acrylic plate 6 and the protective paper 5 as shown in FIG. Then, first, as shown in FIG. 2B, two cutting grooves 8 and 8 are mainly formed in the protective paper 5 by the two cutting blades 4 and 4 of the second cutting tool 2. These two cutting grooves 8, 8
The lower end of the appears as the cutting line of the second cutting tool 2 in the plane. Here, since the two cutting blades 4 and 4 of the second cutting tool 2 are arranged in an inverted C-shape on the surface orthogonal to the cutting direction of the tool unit 3, that is, the paper surface of FIG. 2B, The side surfaces of the cutting grooves 8 and 8 formed by the two cutting blades 4 and 4 and the cutting surface formed outside the cutting blades 4 and 4 are formed by the cutting surface and the surface of the protective paper 5. The angle is greater than 90 degrees. That is, the external angle α formed by the outer cutting surfaces of the cutting blades 4 and 4 and the surface of the protective paper 5 is smaller than 90 degrees. As a result, no protrusions or burrs are formed in the vicinity of the cutting surface formed outside the cutting blades 4, 4. On the other hand, burrs 16 and 16 are formed at the ends of the side surfaces of the cutting grooves 8 and 8 formed by the cutting blades 4 and 4, which are formed inside the cutting blades 4 and 4. . In FIG. 2B, the burr 1
6, 16 are exaggerated.

After that, the acrylic plate 6 located between the cutting grooves 8 in the plane is cut by the first cutting tool 1. As a result, the portion of the protective paper having the burrs 16 and 16 located between the cutting grooves 8 and 8 is removed, and the cutting grooves 9 are formed in the acrylic plate 6 as shown in FIG. 2C. It The lower end of this cutting groove 9 appears as a cutting line of the first cutting tool 1 in a plane. The cutting line formed by the first cutting tool 1 is the same as that formed by the second cutting tool 2.
It is formed so as to be located between two cutting lines. Further, an outer angle α formed by the outer cutting surface of the cutting groove 8 by the second cutting tool 2 and the surface of the protective paper 5 and a side surface of the cutting groove 9 of the acrylic plate 6 and the surface of the protective paper 5 are formed. Regarding the outside angle β, the relationship of α <β is established. As a result, the first
The cutting tool 1 can form the cutting groove 9 by cutting only the portion of the acrylic plate 6 between the cutting grooves 8 and 8 formed by the second cutting tool 2. Therefore, the first cutting tool 1 does not peel off the protective paper 5 when cutting the acrylic plate 6. As a result, since the protective paper 5 can be stably attached to the acrylic plate 6 without being peeled off from the surface of the acrylic plate 6, the protective paper is peeled off and the surface of the acrylic plate becomes dirty or scratched as in the conventional case. Can be prevented. Also, in the manufacturing process of products using this acrylic plate,
It is possible to reliably avoid the inconvenience that the protective paper is peeled off, the peeled protective paper is caught in the manufacturing apparatus, and the manufacturing line stops. Further, the cutting grooves 8 and 8 have the second
Two cutting blades 4, which are arranged in the inverted C shape of the cutting tool 4,
4 and the outer angle α formed by the outer cutting surface of the cutting grooves 8 and the surface of the protective paper 5 is smaller than 90 degrees, the ridges and burrs are formed in the vicinity of the outer cutting surface. Can be effectively prevented. As a result, it is possible to prevent the protective paper 5 from being easily peeled off due to protrusions and burrs, and it is possible to effectively prevent the acrylic plate 6 from being soiled or scratched.

In the present embodiment, the cutting groove 9 of the acrylic plate has a V-shaped cross section, but has another shape such as a U-shape depending on the shape of the cutting blade of the first cutting tool. May be.

Further, the cutting blades 4, 4 of the second cutting tool
Are arranged so as to form an inverted V shape in a plane orthogonal to the cutting direction. However, if the cutting blades 4 and 4 are inclined so that the distance between them increases as the distance from the surface of the protective paper increases. , May be arranged in a shape other than the inverted C-shape, and for example, the two cutting blades may be inclined at different inclination angles.

Protective paper 5 as the second work piece
However, the second workpiece may be composed of two layers such as a resin film and protective paper, or may be composed of a plurality of layers of three or more layers.

Although the first workpiece is the acrylic plate 6, it may be a stainless plate other than the acrylic plate or an aluminum plate. The second work piece may be formed of paper or a resin film according to the material of the first work piece. In this case, the second work piece may be any number of layers of one or more.

(Second Embodiment) FIG. 3 is a view showing a tool unit according to a second embodiment of the present invention. This tool unit 13 includes two cutting blades 14, 14 of the second cutting tool 2.
However, it differs from the tool unit 3 of the first embodiment only in that it is composed of a disk-shaped rotary blade. In this embodiment, the same components as those of the tool unit 3 of the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

The second cutting tool 2 includes two rotary blades 14 and 14 which are arranged in line symmetry with respect to the cutting line formed by the first cutting tool 1. This rotary blade 14,14
Between the two cutting lines of the rotary blades 14 and 14,
It is arranged so that the cutting line by the first cutting tool 1 is located. Further, the rotary blades 14 and 14 are arranged so as to be inclined with respect to each other on a plane orthogonal to the cutting direction of the tool unit 13 so as to form an inverted V shape. The rotary blades 14 and 14 can be adjusted in arrangement interval according to the size of the first cutting tool 1 and can be changed in inclination angle.

A cutting method for cutting the laminate using the tool unit 13 will be described with reference to FIGS. 4 (a), 4 (b) and 4 (c). Similar to FIG. 2A of the first embodiment, FIG.
The tool unit 13 is arranged on the surface of the laminate 7 composed of the acrylic plate 6 and the protective paper 5 as shown in (a), and the cutting is started. Then, first, as shown in FIG. 4B, the two rotary blades 14, 14 of the second cutting tool 2 mainly form two cutting grooves 8, 8 in the protective paper 5.
Here, the two rotary blades 14, 14 of the second cutting tool 2 are
Are arranged in an inverted C-shape on a surface orthogonal to the cutting direction of the tool unit 3, so that the cutting surfaces of the cutting grooves 8, 8 located outside the rotary blades 14, 14 are protected from this cutting surface. The angle formed by the surface of the paper 5 is larger than 90 degrees. That is, the outer angle α formed by the cutting surface outside the rotary blades 14 and the surface of the protective paper 5 is smaller than 90 degrees. Therefore, the cutting surface inside the rotary blades 14, 14 of the cutting grooves 8, 8 has a burr 16, at the end thereof.
16 is formed, while the rotary blade 1 of the cutting grooves 8 and 8 is formed.
No ridges or burrs are formed in the vicinity of the cutting surfaces on the outer sides of 4, 14. In FIG. 4B, the burrs 16 and 16 are exaggeratedly shown.

Thereafter, the acrylic plate 6 lying between the cutting grooves 8 in the plane is cut by the first cutting tool 1 and the burr 1 lying between the cutting grooves 8 8 is cut.
Remove the part of the protective paper with 6,16. As a result, the cutting groove 9 as shown in FIG. 2C is formed in the acrylic plate 6. Similar to the first embodiment, the outer angle α formed by the outer cutting surface of the cutting groove 8 and the surface of the protective paper 5 and the outer angle formed by the side surface of the cutting groove 9 of the acrylic plate 6 and the surface of the protective paper 5 With respect to β, the relationship of α <β is established. Therefore, when the acrylic plate 6 is cut by the first cutting tool 1, the protective paper 5
Never peel off. Therefore, the protective paper 5 can be stably attached to the surface of the acrylic plate 6,
It is possible to effectively prevent dirt and scratches on the surface of the acrylic plate 6.
Further, it is possible to surely avoid the inconvenience that the protective paper is peeled off in the manufacturing process of the product using the acrylic plate, and the peeled protective paper is caught in the manufacturing apparatus to stop the manufacturing line. Further, since no protrusions or burrs are formed in the vicinity of the cutting surfaces outside the rotary blades 14 and 14, the protective paper 5 can be hardly peeled off from the surface of the acrylic plate 6, and the acrylic plate 6 can be effectively prevented from being soiled or scratched. it can. In addition, the second
Since the rotary blades 14, 14 of the cutting tool are disk-shaped rotary blades, the blade tip is less likely to be chipped than the rotary blades 4, 4 of the first cutting tool of the first embodiment, and therefore the tool unit 13 has a long life. it can.

In the present embodiment, the cutting groove 9 of the acrylic plate may have a shape other than the V-shape depending on the shape of the rotary blade of the first cutting tool. In addition, the laminated body 7
Other than the acrylic plate 6 and the protective paper 5, for example, a stainless plate and a resin film, an aluminum material and a resin film, or the like may be used.

Further, the rotary blades 14 and 1 of the second cutting tool
4 is arranged so as to form an inverted V shape in a plane orthogonal to the cutting direction, but it may be inclined so that the distance between them becomes larger as the distance from the surface of the protective paper increases.

The protective paper 5 as the second work piece
However, the second object to be processed may have two layers such as a resin film and protective paper, or may have a plurality of layers of three or more layers.

(Third Embodiment) FIG. 5 is a view showing a tool unit according to a third embodiment of the present invention. In the tool unit 23, the left direction in FIG. 5 is the cutting direction, and cuts the laminated body 7 in which the protective paper 5 is provided on the surface of the acrylic plate 6 as in the first embodiment. The tool unit 23 mainly includes a first cutting tool for cutting the acrylic plate 6, but in FIG. 5, the first cutting tool is omitted. In this tool unit 23, a second cutting tool 2 that cuts the protective paper 5 prior to the first cutting tool is composed of two cutting blades 24a and 24b that are arranged offset from each other in the cutting direction. That is, the second cutting tool 2 has the first cutting blade 24a located in the front in the cutting direction and the second cutting blade 24b located in the rear in the cutting direction with respect to the first cutting blade 24a. As shown in FIG. 5, a straight line L1 that faces the cutting direction of the tool unit 23 and a straight line L2 that connects the center of the top of the first cutting blade 24a and the center of the top of the second cutting blade 24b diagonally intersect each other. In addition, the first and second cutting blades 24a, 24b
Are arranged. In addition, the first cutting blade 24a and the second
The cutting blades 24b are arranged symmetrically in the width direction on a plane orthogonal to the cutting direction and have an inverted V shape.

A method of cutting the laminated body 7 using the tool unit 23 will be described with reference to FIGS. 6 (a), 6 (b) and 6 (c). First, the tool unit 23 is arranged on the surface of the laminated body 7 including the acrylic plate 6 and the protective paper 5, and the cutting of the laminated body 7 is started. Then, as shown in FIG. 6A, the first cutting blade 24 a of the second cutting tool 2 cuts into the acrylic plate 6 and the protective paper 5 in a posture inclined with respect to the surface of the protective paper 5, 1 Cutting groove 81a is formed. About the first cutting groove 81a, the first cutting blade 2
4a and the surface of the protective paper 5 form an obtuse angle, a burr 16 is generated at the end of the cutting surface, while the first cutting blade 24b is formed.
No burrs or bumps are formed in the vicinity of the cutting surface on the side where the surface of the protective paper 5 and the surface of the protective paper 5 form an acute angle.

Subsequently, as shown in FIG. 6B, the second cutting blade 24b of the second cutting tool 2 is replaced with the first cutting blade 2 described above.
4a, which is symmetrical with respect to the surface of the protective paper 5 and is symmetrical with respect to the acrylic plate 6 and the protective paper 5.
To form a second cutting groove 81b. The second cutting groove 81b is formed so that the lower end intersects with the vicinity of the lower end of the first cutting groove 81a. Regarding the second cutting groove 81b, a burr 16 is generated at the end of the cutting surface on the side where the second cutting blade 24b and the surface of the protective paper 5 form an obtuse angle, while the second cutting blade 24b and the protective surface are protected. No burrs or ridges are formed in the vicinity of the cutting surface on the side that forms an acute angle with the surface of the paper 5.

The first and second cutting grooves 81a, 81b
Are formed with their lower ends crossing each other, the first and second cutting grooves 81a and 81b are formed as shown in FIG. 6 (c).
The portion between the burrs 16 and 1 of the protective paper 5
The portion where 6 is generated and the portion of the acrylic plate 6 are removed as chips, and a cutting groove 91 having a V-shaped cross section can be formed. Since burrs and protrusions are not generated in the vicinity of the cutting groove 91, the protective paper 5 can be prevented from being easily peeled off due to protrusions or burrs, and the acrylic plate 6 can be effectively prevented from being soiled or damaged. In addition, the first and second cutting blades 2
Since 4a and 24b are arranged so as to be offset from each other in the cutting direction, when the cutting groove 91 is formed by the first and second cutting blades 24a and 24b, the first and second cutting grooves 91 are formed. The cutting grooves 81a and 81b are formed separately by shifting. Therefore, the laminated body 7
In addition, since the force for cutting the laminated body 7 acts in a dispersed manner, the force acting on the laminated body 7 can be reduced as compared with the case where two cutting blades cut the laminated body 7 at the same time to form a cutting groove. As a result, it is possible to more effectively prevent the laminate 7 from being bumped or burred.

After forming the cutting groove 91 shown in FIG. 6C, the cutting groove 91 is formed by a first cutting tool (not shown).
Further, the portion of the acrylic plate 6 of
Forming a groove deeper than that. At this time, since the first cutting tool cuts only the portion of the acrylic plate 6 in the cutting groove 91, the protective paper is not peeled off as in the conventional case. As a result, since the protective paper 5 can be stably attached to the surface of the acrylic plate 6, it is possible to effectively prevent the protective paper from being peeled off and the surface of the acrylic plate being soiled or scratched as in the conventional case. It can be prevented. Further, it is possible to surely avoid the inconvenience that the protective paper is peeled off in the manufacturing process of the product using the acrylic plate, and the peeled protective paper is caught in the manufacturing apparatus to stop the manufacturing line.

In the above embodiment, the cutting groove 91 is used.
Moreover, it is not necessary to further form the groove by the first cutting tool (not shown). That is, it is only necessary to form the cutting groove 91 with the second cutting tool. As a result, the first cutting tool can be eliminated, and a relatively shallow cutting groove 91 can be formed with a simple structure, and a tool unit that can prevent dirt and scratches on the surface of the acrylic plate 6 can be configured.

In the present embodiment, the laminate 7 may be, for example, a stainless plate and a resin film other than the acrylic plate 6 and the protective paper 5, or an aluminum material and a resin film.

The first cutting blade 24 of the second cutting tool is also used.
The second cutting edge 24a and the second cutting edge 24b are arranged so as to form an inverted V shape on a plane orthogonal to the cutting direction. Good.

Further, the above-mentioned protective paper 5 as the second workpiece.
However, the second object to be processed may have two layers such as a resin film and protective paper, or may have a plurality of layers of three or more layers.

(Fourth Embodiment) FIG. 7 is a view showing a tool unit according to a fourth embodiment of the present invention. This tool unit 33 has a cutting direction in the left direction in FIG.
The laminate 7 having the protective paper 5 provided on the surface is cut. The tool unit 33 of the present embodiment differs from the tool unit of the third embodiment shown in FIG. 5 only in that the cutting blade of the second cutting tool is a rotary blade. In the tool unit 33 of the present embodiment, parts having the same functions as those of the tool unit of the third embodiment are designated by the same reference numerals, and detailed description thereof will be omitted.

This tool unit 33 includes the second cutting tool 2
Is composed of two rotary blades 34a, 34b which are arranged offset from each other in the cutting direction. A straight line L1 facing the cutting direction of the tool unit 33 and a projection line L2 on a plane P of a line connecting the rotation center of the first rotary blade 34a and the rotation center of the second rotary blade 34b intersect obliquely, The second cutting tool 2 is configured. The first rotary blade 34a and the second
The rotary blades 34b are arranged symmetrically in the width direction on a plane orthogonal to the cutting direction and have an inverted V shape.

When the laminate 7 composed of the acrylic plate 6 and the protective paper 5 is cut using the tool unit 33, first, as shown in FIG. 8A, the first cutting groove 81a is formed by the first rotary blade 34a. 8B, a second cutting groove 81b is formed by the second rotary blade 34b as shown in FIG. 8B, and a cutting groove 91 having a V-shaped cross section as shown in FIG. 8C is formed.
To form. The rotary blades 34a, 34b are less liable to chip off than the cutting blades 24a, 24b of the third embodiment. Therefore, according to the tool unit 33, the cutting groove 91 can be formed in the laminated body 7 for a long period of time in addition to the effect obtained when the cutting is performed using the tool unit 23 of the third embodiment. That is, according to this embodiment, the tool unit 23 can have a long life.

In the above embodiment, the cutting groove 91 is used.
In addition, the groove may be further formed by a first cutting tool (not shown), or the groove may not be formed by deleting the first cutting tool. When the first cutting tool is deleted, a relatively shallow cutting groove can be formed, and a tool unit that can prevent the acrylic plate 6 from being soiled or damaged can be easily configured.

Further, the first rotary blade 34 of the second cutting tool
The a and the second rotary blade 34b are arranged so as to form an inverted V-shape on a plane orthogonal to the cutting direction, but may be inclined so that the distance apart from each other increases as the distance from the surface of the protective paper increases. Good.

In the present embodiment, the laminated body 7 is also used.
Other than the acrylic plate 6 and the protective paper 5, for example, a stainless plate and a resin film, an aluminum material and a resin film, or the like may be used.

The second object to be processed, which is composed of one layer of the protective paper 5, may be two layers such as a resin film and protective paper, or may be composed of a plurality of layers of three or more layers. Good.

[0056]

As is apparent from the above, according to the tool unit of the present invention, the first work piece and at least one second work piece provided on the first work piece are provided. Which is a tool unit for cutting a laminated body consisting of
A first cutting tool that mainly cuts the workpiece, and a first cutting tool that mainly cuts the second workpiece in front of the cutting direction of the first cutting tool and prior to the cutting of the first cutting tool. Two cutting tools, and the second cutting tool is inclined such that the distance between the second cutting tool and a surface orthogonal to the cutting direction of the second cutting tool increases as the distance from the surface of the second workpiece increases. Since the two cutting blades are provided, the two cutting blades can mainly cut the second work piece in the vicinity of the cutting surface formed on the outer side of the cutting blade without causing, for example, ridges or burrs. Then, the first workpiece can be cut. Therefore, the laminated body can be cut without producing ridges, burrs, or the like that cause the second workpiece to be peeled off, so that the surface of the first workpiece is stabilized by the second workpiece. Therefore, it is possible to easily and effectively prevent dirt and scratches on the surface of the first workpiece. Further, since the second work piece can be cut prior to the cutting of the first work piece, the first work piece and the second work piece are appropriately cut without peeling off the second work piece. it can.

According to the tool unit of one embodiment, since the two cutting edges of the second cutting tool are arranged offset from each other in the cutting direction of the second cutting tool, the lower ends of the two cutting surfaces are arranged. By intersecting with each other, the part between the two cutting surfaces can be completely removed. Therefore, the cutting load of the first cutting tool that follows the second cutting tool can be reduced. Further, by removing the portion between the two cutting surfaces, it is possible to effectively remove the bumps and burrs of the laminate.

According to the tool unit of one embodiment, the cutting blade of the second cutting tool is a rotary blade, and the rotary blade is relatively hard to be chipped. Therefore, the second cutting tool, and thus the tool unit, are The life can be extended.

According to the tool unit of one embodiment, in the second cutting tool, the cutting surface formed by the cutting blade of the second cutting tool and the surface of the second work piece connected to the cutting surface are formed. Since the formed angle is formed to be larger than 90 degrees, almost no raised portion or burr caused by the cutting by the second cutting tool is generated in the vicinity of the cutting surface. Therefore, it is possible to prevent the second workpiece from peeling off from the first workpiece, and the surface of the first workpiece can be effectively protected from dirt and scratches.

According to the tool unit of one embodiment, in the plane, the cutting line by the cutting blade of the first cutting tool is
Since it is located between the two cutting lines of the two cutting blades of the second cutting tool, when cutting the first workpiece with the first cutting tool, the first part of the portion between the two cutting lines is cut. 2 Since the work piece is removed, the second work piece can be peeled off before cutting the first work piece, as in the conventional case.
The second work piece does not peel off when the first work piece and the second work piece are simultaneously cut. Therefore, it is possible to effectively and easily prevent dirt and scratches on the surface of the first workpiece.

According to the tool unit of one embodiment, in the plane, the cutting line by the cutting blade of the first cutting tool,
Since the two cutting lines of the two cutting blades of the second cutting tool substantially coincide with each other, the second work piece is not cut when the first work piece is cut by the first cutting tool. Therefore, unlike the conventional case, it is not necessary to peel off the second work piece before cutting the first work piece and to attach the second work piece again after cutting the first work piece. 2 The work piece is hard to peel off. As a result, stains and scratches on the surface of the first workpiece can be effectively and easily prevented.

According to the cutting method of the present invention, there is provided a cutting method for cutting a laminate comprising a first work piece and at least one second work piece provided on the first work piece. Therefore, the second workpiece is formed at an angle greater than 90 degrees with respect to the surface of the second workpiece, and the distance between the second workpiece and the second workpiece becomes smaller as it goes in the depth direction.
The step of mainly cutting the second work piece so that two cutting surfaces are formed, and the cutting width that is smaller than the distance between the two cutting surfaces of the second work piece. And the step of cutting the first workpiece between the two cutting surfaces formed on the second workpiece, so that no protrusions or burrs are formed in the vicinity of the cutting surface, and the first workpiece is processed. Since the second work piece is not peeled off when cutting the work piece, the second work piece can be stably attached to the surface of the first work piece, and as a result, the first work piece can be attached. It is possible to stably prevent dirt and scratches on the surface of the work piece.

According to the cutting method of the present invention, there is provided a cutting method for cutting a laminate comprising a first work piece and at least one second work piece provided on the first work piece. A first angle that is greater than 90 degrees with respect to the surface of the second workpiece while reaching the first workpiece.
The first work piece and the second work piece are formed so as to form a cutting surface.
A step of cutting the work piece, and connecting to the vicinity of the lower end of the first cutting surface, and 90 with respect to the surface of the second work piece.
Cutting the first work piece and the second work piece so as to form a second cutting surface having an angle larger than a degree,
Since the step of forming a groove having a substantially V-shaped cross section with the first cutting surface and the second cutting surface is provided, a V-shaped cross section defined by the first cutting surface and the second cutting surface is provided. A groove can be formed in the vicinity of this groove without producing a protrusion or a burr. As a result, it is possible to effectively prevent the peeling of the second work piece due to the protrusions and burrs of the stacked body, and to stabilize the scratches and stains on the surface of the first work piece on which the second work piece is arranged. Can be prevented.

[Brief description of drawings]

FIG. 1 is a diagram showing a tool unit 3 according to a first embodiment of the present invention.

2 (a) is a cross-sectional view of a laminated body 7 to be cut by the tool unit 3, and FIG. 2 (b) is a second cutting tool 2 in which protective grooves 5 are formed in the protective paper 5. It is the figure which showed the mode that it was formed and FIG.2 (c) shows the acrylic plate 6 by the 1st cutting tool 1.
It is the figure which showed the mode that the cutting groove 9 was formed.

FIG. 3 is a diagram showing a tool unit 13 according to a second embodiment of the present invention.

4 (a) is a cross-sectional view of the laminate 7 to be cut by the tool unit 13, and FIG. 4 (b) is two disc-shaped cutting blades 14, 14 of the second cutting tool 2. FIG. 4 is a diagram showing a state in which the cutting grooves 8 and 8 are formed on the protective paper 5 in FIG.
(C) is a diagram showing a state in which a cutting groove 9 is formed in the acrylic plate 6 with the first cutting tool.

FIG. 5 is a diagram showing a tool unit according to a third embodiment of the present invention.

6 (a) is a diagram showing a state in which a first cutting groove 81a is formed by the first cutting blade 24a of the second cutting tool 2, and FIG. 6 (b) is a second cutting tool. 2nd cutting blade 24
It is the figure which showed a mode that the 2nd cutting groove 81b was formed in b, FIG.6 (c) shows the 1st and 2nd cutting grooves 81a, 81.
It is the figure which showed a mode that the part of the protection paper 5 and the part of the acrylic plate 6 pinched | interposed by b were removed, and the cutting groove 91 was formed.

FIG. 7 is a diagram showing a tool unit according to a fourth embodiment of the present invention.

FIG. 8A is a view showing a state in which the first cutting groove 81a is formed by the first rotary blade 34a, and FIG.
[Fig. 8] is a view showing how the second rotary blade 34b forms a second cutting groove 81b, and Fig. 8 (c) is a view showing a cutting groove 91 having a V-shaped cross section formed in the laminated body 7. Is.

9 (a), (b), (c), and (d) are diagrams showing a conventional method for cutting a laminated body, and FIG. 9 (a) is
FIG. 9B shows a laminated body including the protective member 126 and the material 125. FIG.
5 shows an exposed state of the smooth surface of FIG. 5, FIG. 9 (c) shows a state of forming a V-shaped groove on the exposed surface of the material 125, and FIG. 9 (d) shows a protection member 126. The material 125
It is a figure which shows a mode that it stuck back on the smooth surface of FIG.

FIG. 10 is an acrylic plate 1 to which a protective member 126 is attached.
It is a figure showing a situation of cutting 28 with a cutter 129.

[Explanation of symbols]

1 first cutting tool 2 second cutting tool 3 tool units 4 cutting blades 5 protective paper 6 acrylic board 7 laminate 8 cutting grooves 9 cutting grooves

Claims (8)

[Claims] 1. A tool unit for cutting a laminate comprising a first work piece and at least one second work piece provided on the first work piece, the first work piece comprising: A first cutting tool that mainly cuts a workpiece, and the first cutting tool in front of the cutting direction of the first cutting tool.
Prior to the cutting of the cutting tool, a second cutting tool that mainly cuts the second workpiece is provided, and the second cutting tool is a surface that is orthogonal to a cutting direction of the second cutting tool. A tool unit comprising two cutting blades that are inclined so that the distance from each other increases with increasing distance from the surface of the second workpiece. 2. The tool unit according to claim 1, wherein the two cutting edges of the second cutting tool are arranged so as to be offset from each other in the cutting direction of the second cutting tool. . 3. The tool unit according to claim 1 or 2, wherein the cutting blade of the second cutting tool is a rotary blade. 4. The tool unit according to claim 1, wherein the second cutting tool is a cutting surface formed on the second workpiece by a cutting blade of the second cutting tool. 2 of the above
A cutting surface formed on the side opposite to the side where the two cutting blades face each other,
A tool unit characterized in that the angle formed by the surface of the second workpiece connected to the cutting surface is larger than 90 degrees. 5. The tool unit according to claim 1, wherein in a plane, a cutting line formed by the cutting blade of the first cutting tool is formed by two cutting blades of the second cutting tool. A tool unit characterized by being located between two cutting lines. 6. The tool unit according to claim 1, wherein in a plane, a cutting line formed by a cutting edge of the first cutting tool and a cutting line formed by two cutting edges of the second cutting tool are formed. A tool unit characterized in that the two cutting lines substantially match. 7. A cutting method for cutting a laminate comprising a first work piece and at least one second work piece provided on the first work piece, the second work piece comprising: In order to form two cutting surfaces on the workpiece, each of which forms an angle greater than 90 degrees with respect to the surface of the second workpiece, and the distance between the workpieces becomes smaller as it goes in the depth direction. The step of mainly cutting the second work piece and the step of cutting 2 formed on the second work piece so as to have a cutting width smaller than the distance between the two cutting surfaces of the second work piece. And a step of cutting a first workpiece between two cutting surfaces. 8. A cutting method for cutting a laminate comprising a first work piece and at least one second work piece provided on the first work piece, the first work piece comprising: Cutting the first work piece and the second work piece so as to form a first cutting surface that reaches the work piece and forms an angle of more than 90 degrees with the surface of the second work piece. And a second cutting surface that is connected to the vicinity of the lower end of the first cutting surface and forms an angle greater than 90 degrees with respect to the surface of the second processing object. And a step of cutting the second workpiece to form a groove having a substantially V-shaped cross section with the first cutting surface and the second cutting surface.