JP2022084556A - Cutting blade and cutting device - Google Patents

Abstract

To provide a cutting blade and a cutting device which can smoothly keep cutting in cutting of a resin material or corrugated cardboard, prevent shake and can improve working accuracy and working speed, and can suppress generation of powder dust.SOLUTION: A cutting blade 3 includes a base part 40 composed of a thin plate having an approximately triangular shape, and blade parts 60 and 62 that are both blades formed so as to extend on a first oblique side 42 and/or a second oblique side 44 on an outer end of the base part 40, in which the base part 40 has a window part 70 that is a through hole, and the window part 70 of the base part 40 has a crosslinked part 72.SELECTED DRAWING: Figure 6

Description

The present invention relates to a cutting blade and a cutting device for cutting various products used for building materials and the like by cutting resin materials and corrugated cardboard.

Foaming resins such as polyurethane foam, polyethylene foam, and phenol foam are widely used as heat insulating materials, and are known as indispensable materials for energy saving and improvement of livability of buildings. However, when the foamed resin is cut and processed, a large amount of dust is generated, which deteriorates the working environment and may cause health problems. In addition, since many foamed resins are flammable, there is a risk that combustion will expand if they catch fire, and although measures such as flame retardancy have been taken, fire accidents have still been reported. Further, since the foamed resin has elasticity and high frictional resistance, for example, when trying to cut a foamed resin having a thickness of 100 mm or more using a knife-shaped cutting blade, the cut surface of the foamed resin is formed on the side surface of the cutting blade. It is difficult to get in close contact with each other.

Conventionally, as a device for cutting a foamed resin, a melt cutting device using a heating wire described in Patent Document 1, a cutting device having a loop-shaped linear blade described in Patent Document 2, and Patent Document 3 have been used. There is a cutting machine having a straight thin line described in.

Japanese Unexamined Patent Publication No. 9-94800 Japanese Unexamined Patent Publication No. 2004-9214 Japanese Unexamined Patent Publication No. 2000-355000

However, although the conventional cutting devices such as Patent Documents 1 to 3 have a small contact area with the object to be cut and a small frictional resistance, there are problems in processing accuracy due to bending of the heating wire and the linear blade, and the like. There was a problem of appearance such as unevenness of the cut surface. A similar problem was also found in the cutting of corrugated board sheets.

The present invention has been made in view of such circumstances, and can smoothly cut a resin material or corrugated cardboard, prevent blurring, improve processing accuracy and processing speed, and dust. It is an object of the present invention to provide a cutting blade and a cutting device capable of suppressing the occurrence of.

The cutting blade according to claim 1 is a blade portion that is a double-edged blade formed so as to extend to a base made of a substantially triangular thin plate and the first hypotenuse and / or the second hypotenuse of the outer end of the base. It is characterized by having and.

The cutting blade according to claim 2 is characterized by having a window portion whose base portion is a through hole.

The cutting blade according to claim 3 is characterized in that the window portion of the base portion includes a cross-linking portion.

The cutting blade according to claim 4 is characterized in that the thickness of the base is 0.35 mm to 1.00 mm.

The cutting blade according to claim 5 has a base portion including a main body portion including a first hypotenuse and a second hypotenuse, and a fixing portion including a bottom portion for fixing or gripping the cutting blade itself. The angle formed by the first hypotenuse and the second hypotenuse, or the extension lines of the first hypotenuse and the second hypotenuse is 60 to 120 degrees.

The cutting blade according to claim 6 is characterized in that the width from the outer end of the main body portion of the base portion to the edge of the window portion is 20 mm to 60 mm.

The cutting blade according to claim 7 is characterized in that the window portion of the base portion has a substantially triangular shape.

The cutting blade according to claim 8 is characterized in that the first hypotenuse and the second hypotenuse of the main body portion of the base portion each include a blade portion.

The cutting blade according to claim 9 is characterized in that the material of the cutting blade is a high-speed tool steel material or a carbon tool steel material.

The cutting device according to claim 10 has a cutting blade according to any one of claims 1 to 9, a processing table on which a resin material or corrugated cardboard is placed, and a cutting blade or resin material or corrugated cardboard. It is equipped with a moving mechanism that can move forward and backward with respect to the material or corrugated cardboard or the cutting blade, so that the cutting blade is erected with the first or second slope of the main body of the base facing the direction of travel. It is characterized in that the fixed portion is held by the moving mechanism.

According to the present invention, when cutting a resin material or corrugated cardboard, the cutting blade can smoothly cut, prevent blurring, improve processing accuracy and processing speed, and suppress the generation of dust. And cutting equipment can be provided.

It is explanatory drawing which shows the 1st Embodiment of the cutting blade which concerns on this invention. It is explanatory drawing which shows the 2nd Embodiment of the cutting blade which concerns on this invention. It is explanatory drawing which shows the AA cross section of the cutting edge of the 2nd Example. It is explanatory drawing which shows a part of the cutting apparatus which concerns on this invention. It is explanatory drawing which shows a part of the cutting apparatus which concerns on this invention. It is explanatory drawing which shows the 3rd Embodiment of the cutting blade which concerns on this invention. It is explanatory drawing which shows the 4th Embodiment of the cutting blade which concerns on this invention. It is explanatory drawing which shows the 5th Embodiment of the cutting blade which concerns on this invention.

Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a front view showing a first embodiment of a cutting blade according to the present invention. FIG. 2 is a front view showing a second embodiment of the cutting blade according to the present invention. FIG. 3 is an enlarged cross-sectional view taken along the line AA of the main body of the base of the cutting blade of the second embodiment. 4 and 5 are explanatory views showing a part of the cutting device according to the present invention. 6 to 8 are front views showing the third to fifth embodiments of the cutting blade according to the present invention, which is a modification of the cutting blade shown in FIG. 2. These explanatory diagrams are schematically drawn by omitting them as appropriate for the sake of clarity.

The cutting blades 1 to 5 according to the present invention are for cutting a resin material or a corrugated cardboard (hereinafter referred to as a material to be cut) W. As the resin material W to be cut in the present invention, a foamed resin material, a non-foamed resin material, or the like can be considered. Examples of the foamed resin material include polyurethane foam, polyethylene foam, polypropylene foam, phenol foam and the like. Further, the resin material W also includes a composite material in which a layer made of a foamed resin material, a non-foamed resin material, or the like and a layer made of another material such as gypsum are laminated, and the shape is not limited to a plate shape. , Thicker rectangular parallelepiped, cubic, spherical, elliptical, etc. are optional. The corrugated cardboard W is made of paper, a plastic film, or the like, and is not limited to one corrugated cardboard sheet, but may be a stack of a plurality of sheets.

As shown in FIGS. 1, 2, 6 to 8, the cutting blades 1 to 5 include bases 10, 40 and blades 30, 60, 62. Since the cutting blades 3 to 5 are modifications of the second embodiment, the same reference numerals as those of the cutting blade 2 are used. The bases 10 and 40 are made of a substantially triangular thin plate. Here, in the present invention, the substantially triangular shape includes not only a strict triangle surrounded by three sides but also a triangle lacking at least one of three tops of a triangle formed by intersecting two sides. For example, the one lacking two tops as shown in FIG. 1 and the one lacking all three tops as shown in FIG. 2 are also included. In addition, the substantially triangular shape includes those with rounded corners.

The blade portions 30, 60, 62 are double-edged blades formed so as to extend to the first hypotenuse 12, 42 and / or the second hypotenuse 44 at the outer end of the substantially triangular base 10, 40. That is, the blade portion 30 is formed only on the first hypotenuse 12, which is one of the three sides constituting the contour of the substantially triangular thin plate, or the second side of the three sides. A blade portion 60 and a blade portion 62 are formed on the first hypotenuse 42 and the second hypotenuse 44, respectively.

By making the cutting blades 1 to 5 have such a configuration, it is possible to smoothly cut the object W to be cut at the time of cutting, and it is possible to improve the cutting ability and the processing speed of the cutting blades 1 to 5. .. Further, since the bases 10 and 40 have a substantially triangular shape, it is possible to prevent the blades 30, 60 and 62 from bending at the time of cutting, to stably cut, and to improve the processing accuracy, and the cutting blade. The cutting edges of 1 to 5 are knife-shaped double-edged blades, and the generation of dust can be suppressed by cutting the object W to be cut.

As shown in FIG. 2, the base 40 of the cutting blade 2 may have a window 70 which is a through hole. The shape, size, position, and number of the window portion 70 are not particularly limited as long as they are holes penetrating the front and back surfaces of the base portion 40 which is a thin plate, but the shape is substantially triangular or substantially trapezoidal. A substantially rectangular shape, a substantially elliptical shape, a substantially circular shape, or a combination thereof can be considered. As shown in FIGS. 2 and 3, the window portion 70 is preferably provided at a portion sandwiched between the blade portion 60 and the blade portion 62 and in contact with the object to be cut W.

Further, the window portion 70 may be one or a plurality, and as shown in FIGS. 6 to 8, the window portion 70 is divided into a plurality of portions because the window portion 70 is partially provided with the cross-linking portion 72. It may be the one that has been done. The shape, arrangement, and size of the cross-linking portion 72 are arbitrary, and are not limited to those shown in FIGS. 6 to 8.

Since the base 40 of the cutting blades 2 to 5 has a window portion 70 which is a through hole, resistance due to contact between the cut surface of the object to be cut W and the cutting blades 2 to 5 during cutting is simple. The structure can be reduced, and the object W to be cut can be smoothly cut.

Further, the cutting blades 1 to 5 preferably have a thickness of the bases 10 and 40 of 0.35 mm to 1.00 mm including 0.80 mm. Within this range, the object W to be cut can be smoothly cut while ensuring the strength of the cutting blades 1 to 5. It is preferable that the thicknesses of the bases 10 and 40 of the cutting blades 1 to 5 are appropriately selected depending on the type and thickness of the object to be cut W to be cut. For example, in the case of a resin material, it is more preferably in the range of 0.60 mm to 0.85 mm, and in the case of corrugated cardboard, it is more preferably in the range of 0.40 mm to 0.90 mm.

The bases 10 and 40 include body portions 18, 48 including the first hypotenuse 12, 42 and the second hypotenuse 14, 44, and bottoms 16, 46 for fixing or gripping the cutting blades 1 to 5 themselves. It consists of fixing portions 20 and 50. The angle α formed by the first hypotenuse 12 and the second hypotenuse 14 of the main body 18 as shown in FIG. 1, or the first hypotenuse 42 and the second hypotenuse 44 of the main body 48 as shown in FIG. The angle β formed by each extension line is preferably 60 to 120 degrees including 80 degrees and 90 degrees.

The widths a and b from the outer end of the main body 48 of the base 40 to the edge of the window 70 are preferably 20 mm to 60 mm from the viewpoint of ensuring the strength of the cutting blades 2 to 5. The width from the outer end of the main body 48 of the base 40 to the edge of the window 70 is from the outer end of the main body 48 of the base 40 to the edge of the nearest window 70, that is, the end face of the nearest through hole. It is a value measured by the distance of.

The window portion 70 of the base portion 40 preferably has a substantially triangular shape, and particularly preferably has a substantially isosceles triangle shape. When both the main body 48 and the window 70 have a substantially isosceles triangle shape of the same shape, the width a on the first hypotenuse side 42 from the outer end of the main body 48 of the base 40 to the edge of the window 70 and the second It is preferable to make the width b on the hypotenuse 44 side of the above equal to that of.

As shown in FIG. 2, the cutting blades 2 to 5 may be provided with blade portions 60 and 62 on the first hypotenuse 42 and the second hypotenuse 44 of the main body 48 of the base 40, respectively. When the object W to be cut is cut by using the cutting blades 2 to 5 provided with the two blade portions 60 and 62, it is possible to cut the object W both when moving forward and when moving backward. Further, since it is possible to move backward between the cut surfaces in close contact with each other after cutting without moving the cut object W when moving forward, the work efficiency is improved.

In the present invention, the advance is that the cutting blades 1 to 5 move toward the object W to be cut, or the object W to be cut moves toward the cutting blades 1 to 5 in a certain direction for cutting. The reverse movement is such that the cutting blades 1 to 5 or the object to be cut W move in the direction opposite to the fixed direction in which the cutting blade W has advanced.

The material of the cutting blades 1 to 5 is preferably a high-speed tool steel material or a carbon tool steel material. This makes it possible to secure sufficient strength for cutting the object W to be cut.

The cutting device 100 according to the present invention is a device provided with the above-mentioned cutting blades 1 to 5 according to the present invention for cutting an object W to be cut such as a resin material or corrugated cardboard. FIG. 4 shows that the cutting blade 2 advances with respect to the object W to be cut in the direction indicated by the arrow, and FIG. 5 shows that the cutting blade 2 advances with respect to the object W to be cut in the direction indicated by the arrow. ing. When the object to be cut W is moved by the moving mechanism 112, the directions in which the object to be cut W moves forward and backward are opposite to the directions indicated by the arrows in FIGS. 4 and 5, respectively.

As shown in FIGS. 4 and 5, the cutting device 100 advances the cutting blade 2 described above, the processing table 110 on which the object W to be cut is placed, and the cutting blade 2 with respect to the object W to be cut. It is equipped with a moving mechanism 112 capable of moving forward and backward (reciprocating movement). In the cutting device 100, the fixing portion 50 is held by the moving mechanism 112 so that the cutting blade 2 is erected with the first hypotenuse 42 or the second hypotenuse 44 of the main body 48 of the base 40 facing the traveling direction. ing. The moving mechanism 112 may be capable of moving the object to be cut W back and forth with respect to the cutting blade 2 instead of the cutting blade 2. The cutting device 100 can smoothly cut the object to be cut W placed on the processing table 110 by moving the moving mechanism 112 to which the cutting blades 1 to 5 are fixed forward or backward.

Hereinafter, the cutting blade and the cutting device of the present application will be described with reference to examples.

[Example 1]
In this embodiment, as shown in FIG. 1, the cutting blade 1 is a substantially triangular thin plate in which the base 10 of the cutting blade 1 is made of a carbon tool steel material having a width of 200 mm, a height of 230 mm, and a thickness of 0.50 mm. Yes, it lacks the two tops on the 16th side of the base of the triangle. The main body 18 including the first hypotenuse 12 and the second hypotenuse 14 at the outer end of the base 10 has an isosceles triangle shape, and the base 16 of the base 10 is continuously formed on the bottom side of the isosceles triangle shape. The fixed portion 20 including the above is a rectangular shape having a width of 200 mm and a height of 80 mm. The fixing portion 20 may be provided with a fixing hole for fixing the cutting blade 1 to the moving mechanism 112 of the cutting device 100 or the gripping member. The angle α formed by the first hypotenuse 12 and the second hypotenuse 14 of the main body 18 of the base 10 is 70 degrees.

[Example 2]
In this embodiment, as shown in FIG. 2, the cutting blade 2 has a substantially triangular thin plate in which the base 40 of the cutting blade 2 is made of a high-speed tool steel material having a width of 300 mm, a height of 200 mm, and a thickness of 0.80 mm. And lacks all three tops of the triangle. Therefore, the main body 48 including the first hypotenuse 42 and the second hypotenuse 44 at the outer end of the base 40 has a substantially trapezoidal shape, and the bottom side of the base 40 formed continuously on the bottom side of the substantially trapezoidal shape. The fixed portion 50 including the 46 has a rectangular shape having a width of 300 mm and a height of 80 mm. The fixing portion 50 is provided with a plurality of fixing holes (not shown) for fixing the cutting blade 2 to the moving mechanism 112.

The angle β formed by each extension of the first hypotenuse 42 and the second hypotenuse 44 of the main body 48 of the base 40 is 90 degrees. Further, the main body 48 of the base 40 has a width from the outer end of the main body 48 to the edge of the window 70 so that both the first hypotenuse 42 side a and the second hypotenuse 44 side b are 45 mm. A substantially triangular window 70 having a triangular shape and having rounded corners and having one of the tops having substantially the same shape as the contour of the portion 48 is provided. The cutting blade 2 includes blade portions 60 and 62 which are double-edged blades formed so as to extend to the first hypotenuse 42 and the second hypotenuse 44, respectively.

[Example 3]
In this embodiment, as shown in FIG. 6, the cutting blade 3 has a substantially triangular thin plate in which the base 40 of the cutting blade 3 is made of a high-speed tool steel material having a width of 270 mm, a height of 215 mm, and a thickness of 0.80 mm. Is. The main body 48 including the first hypotenuse 42 and the second hypotenuse 44 at the outer end of the base 40 has an isosceles triangle shape, and the base 46 of the base 40 is continuously formed on the bottom side of the isosceles triangle shape. The fixed portion 50 including the above is a rectangular shape having a width of 270 mm and a height of 80 mm. The fixing portion 50 may be provided with a fixing hole for fixing the cutting blade 3 to the moving mechanism 112 of the cutting device 100 or the gripping member.

The cutting blade 3 includes blade portions 60 and 62, which are double-edged blades formed so as to extend to the first hypotenuse 42 and the second hypotenuse 44, respectively, and the first hypotenuse of the main body 48 of the base 40. The angle β formed by 42 and the second hypotenuse 44 is 90 degrees.

Further, the fixed portion from the main body portion 48 of the base portion 40 so that the width from the outer end of the main body portion 48 to the edge of the window portion 70 is 40 mm on both the first hypotenuse 42 side a and the second hypotenuse 44 side b. A window portion 70 having a substantially isosceles triangle shape, which has substantially the same shape as the contour of the main body portion 48, is provided over the upper portion of the 50. The window portion 70 includes a cross-linked portion 72 having a width of 15 mm. The bridge portion 72 extends diagonally upward (for example, 22.5 °, 45 °, etc.) from the substantially central portion of the base of the substantially isosceles triangle of the window portion 70 in both traveling directions, and is the first hypotenuse. It connects the 42 side or the second hypotenuse 44 side with the bottom side. Therefore, the window portion 70 is composed of one substantially rhombic through hole and two substantially triangular through holes provided below the through hole.

[Example 4]
In this embodiment, as shown in FIG. 7, the cutting blade 4 has a substantially triangular thin plate in which the base 40 of the cutting blade 4 is made of a high-speed tool steel material having a width of 420 mm, a height of 290 mm, and a thickness of 0.82 mm. Is. The main body 48 including the first hypotenuse 42 and the second hypotenuse 44 at the outer end of the base 40 has an isosceles triangle shape, and the base 46 of the base 40 is continuously formed on the bottom side of the isosceles triangle shape. The fixed portion 50 including the above is a rectangular shape having a width of 420 mm and a height of 80 mm. The fixing portion 50 may be provided with a fixing hole for fixing the cutting blade 4 to the moving mechanism 112 of the cutting device 100 or the gripping member.

The cutting blade 4 includes blade portions 60 and 62 which are double-edged blades formed so as to extend to the first hypotenuse 42 and the second hypotenuse 44, respectively, and the first hypotenuse of the main body 48 of the base 40. The angle β formed by 42 and the second hypotenuse 44 is 90 degrees.

Further, the width from the outer end of the main body 48 to the edge of the window 70 is 45 mm on both the first hypotenuse 42 side a and the second hypotenuse 44 side b. A window portion 70 having a substantially isosceles triangle shape having substantially the same shape as the contour of the main body portion 48 is provided. The window portion 70 includes a substantially cross-shaped cross-linking portion 72 having a width of 20 mm. The cross-linking portion 72 is a vertical cross-linking connecting the upper top of the main body 48 and the substantially central portion of the bottom of the substantially isosceles triangle of the window 70, and the cross-linking portion 72 from below the middle of the vertical cross-linking toward both traveling directions. It consists of lateral crosslinks extending diagonally upward (eg, 22.5 °, 45 °, etc.). Therefore, the window portion 70 is composed of two substantially triangular through holes and two substantially trapezoidal through holes provided below the through holes.

[Example 5]
In this embodiment, as shown in FIG. 8, the cutting blade 5 has a substantially triangular thin plate in which the base 40 of the cutting blade 5 is made of a high-speed tool steel material having a width of 270 mm, a height of 215 mm, and a thickness of 0.80 mm. Is. The main body 48 including the first hypotenuse 42 and the second hypotenuse 44 at the outer end of the base 40 has an isosceles triangle shape, and the base 46 of the base 40 is continuously formed on the bottom side of the isosceles triangle shape. The fixed portion 50 including the above is a rectangular shape having a width of 270 mm and a height of 80 mm. The fixing portion 50 may be provided with a fixing hole for fixing the cutting blade 5 to the moving mechanism 112 of the cutting device 100 or the gripping member.

The cutting blade 5 includes blade portions 60 and 62, which are double-edged blades formed so as to extend to the first hypotenuse 42 and the second hypotenuse 44, respectively, and the first hypotenuse of the main body 48 of the base 40. The angle β formed by 42 and the second hypotenuse 44 is 90 degrees.

Further, the fixed portion from the main body portion 48 of the base portion 40 so that the width from the outer end of the main body portion 48 to the edge of the window portion 70 is 40 mm on both the first hypotenuse 42 side a and the second hypotenuse 44 side b. A window portion 70 having a substantially isosceles triangle shape, which has substantially the same shape as the contour of the main body portion 48, is provided over the upper portion of the 50. The window portion 70 includes a cross-linked portion 72 having a width of 15 mm. The bridge portion 72 connects the first hypotenuse 42 side and the second hypotenuse 44 side in parallel with the base in the substantially middle of the window portion 70 in the height direction of a substantially isosceles triangle shape. Therefore, the window portion 70 is composed of a substantially triangular through hole and a substantially trapezoidal through hole provided below the through hole.

[Example 6]
In this embodiment, as shown in FIGS. 4 and 5, the cutting device 100 has a cutting blade 2, a processing table 110 for mounting the object W to be cut, and a cutting blade 2 on the object W to be cut. It is equipped with a moving mechanism 112 that can move forward and backward. In the cutting device 100, the cutting blade 2 is set up vertically with respect to the processing table 110 with the first hypotenuse 42 or the second hypotenuse 44 of the main body 48 of the base 40 facing the traveling direction. The fixing portion 50 of 2 is held by the moving mechanism 112. The cutting device 100 may include cutting blades 1, 3 to 5 instead of the cutting blade 2.

Next, a cutting method for cutting the resin material W using the cutting device 100 provided with the cutting blade 2 will be described.
The resin material W is placed on the processing table 110, and the cutting blade 2 is moved toward the resin material W by the moving mechanism 112. At this time, the oblique crossing angle formed by the resin material W and the blade portion 60 or the blade portion 62 of the cutting blade 2 is 45 degrees. Since the cutting blade 2 has blades 60 and 62 on the first hypotenuse 42 and the second hypotenuse 44 of the main body 48 of the base 40, respectively, it can cut both when moving forward and when moving backward. Can be done. Even a cutting device 100 provided with cutting blades 1, 3 to 5 instead of the cutting blade 2 can cut the resin material W both when moving forward and when moving backward.

If necessary, a guide member G extending in the traveling direction may be provided, and the top portion including the first hypotenuse 42 and the second hypotenuse 44 may be moved along the guide groove of the guide member G. Instead of the cutting device 100, a handle may be provided on the fixing portion 50 of the cutting blade 2 and a person may hold it in his / her hand to cut the resin material W.

By providing the cutting device 100 with cutting blades 1 to 5, the resin material W can be smoothly cut at the time of cutting, and the cutting ability of the cutting blades 1 to 5 can be improved. The cutting device 100 can improve the processing speed (productivity) due to the high cutting ability of the cutting blades 1 to 5. Further, since the bases 10 and 40 of the cutting blades 1 to 5 have a substantially triangular shape, it is possible to prevent the blade portions 30, 60 and 62 from bending during cutting and to stably cut the blades, thereby improving the processing accuracy. Can be done. Further, by using these, a clean cut surface can be obtained, and the scattering of cutting chips can be suppressed.

Further, even when the object W to be cut is corrugated cardboard, it can be cut smoothly, a clean cross section can be obtained without crushing the corrugated core between the front liner and the back liner, and paper dust can be obtained. Can be suppressed. From these facts, the object to be cut W may be the object to be cut not only for resin materials and corrugated cardboard but also for other elastic and viscous materials, and the application of the cutting blade of the present invention is widened. I think.

The present invention allows for various embodiments and modifications without departing from the broad spirit and scope of the invention. Further, the above-described embodiments are for explaining the present invention, and do not limit the scope of the present invention. That is, the scope of the present invention is shown not by the embodiment but by the scope of claims. Then, various modifications made within the scope of the claims and within the scope of the equivalent invention are considered to be within the scope of the present invention.

As described above, according to the present invention, when cutting a resin material or corrugated cardboard, it is possible to smoothly cut, prevent blurring, improve processing accuracy and processing speed, and suppress the generation of dust. be able to.

1 to 5 ... Cutting blades 10, 40 ... Base 12, 42 ... First hypotenuse 14, 44 ... Second hypotenuse 16, 46 ... Bottom 18, 48・ ・ ・ ・ Main body 20, 50 ・ ・ ・ ・ Fixed part 30, 60, 62 ・ ・ ・ ・ Blade part 70 ・ ・ ・ ・ Window part 72 ・ ・ ・ ・ Cross-linking part 100 ・ ・ ・ ・ Cutting device 110 ・ ・・ ・ Processing table 112 ・ ・ ・ ・ Movement mechanism

Claims (10)

In a cutting blade for cutting resin material or corrugated board
The base, which consists of a thin plate with a substantially triangular shape,
A cutting blade comprising a blade portion, which is a double-edged blade formed so as to extend, on a first hypotenuse and / or a second hypotenuse of the outer end of the base portion. The cutting blade according to claim 1, wherein the base portion has a window portion which is a through hole. The cutting blade according to claim 2, wherein the window portion of the base portion includes a cross-linking portion. The cutting blade according to any one of claims 1 to 3, wherein the thickness of the base is 0.35 mm to 1.00 mm. The base portion includes a main body portion including the first hypotenuse and the second hypotenuse, and a fixing portion including a bottom surface for fixing or gripping the cutting blade itself.
A claim characterized in that the angle formed by the first hypotenuse and the second hypotenuse of the main body, or the extension lines of the first hypotenuse and the second hypotenuse is 60 to 120 degrees. The cutting blade according to any one of Items 1 to 4. The cutting blade according to any one of claims 2 to 5, wherein the width from the outer end of the main body portion of the base portion to the edge of the window portion is 20 mm to 60 mm. The cutting blade according to any one of claims 2 to 6, wherein the window portion of the base portion has a substantially triangular shape. The cutting blade according to any one of claims 1 to 7, wherein the first hypotenuse and the second hypotenuse of the main body portion of the base portion each include the blade portion. The cutting blade according to any one of claims 1 to 8, wherein the material of the cutting blade is a high-speed tool steel material or a carbon tool steel material. The cutting blade according to any one of claims 1 to 9,
A processing table for placing the resin material or the corrugated cardboard, and
The cutting blade or the resin material or the corrugated cardboard is provided with a moving mechanism capable of advancing back and forth with respect to the resin material or the corrugated cardboard or the cutting blade.
The cutting blade is characterized in that the fixing portion is held by the moving mechanism so that the first hypotenuse or the second hypotenuse of the main body portion of the base portion is erected in the traveling direction. Cutting device.

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