JP2006315387A - Laminate and cutting tool to be used for its manufacture - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laminate which can have a curved surface with a very small radius of curvature together with a reduced incidence of failures. <P>SOLUTION: The laminate50 is a laminate in which the surface and side surface of a base material 51 are laminated with a decorative material 52. A first notched part 53 is formed at the edge of the base material. A second notched part 54 having an arced part is formed at the position matching the first notched part on the back side of the decorative material. The decorative material is bent at the arced part of the second notched part. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a laminate and a cutting tool used for manufacturing the laminate, and more particularly, to a laminate having a very small curvature radius of a curved surface portion capable of reducing the incidence of defective products and a cutting tool used for manufacturing the laminate. .

Conventionally, a laminate comprising a base material made of particle board or the like and a decorative material made of melamine resin or the like laminated on the surface and side surfaces of the base material is known. This laminate is widely used as building materials for various counters, doors, floors, walls, and the like.
As a manufacturing method of the laminate, first, the surface and side surfaces of the base material are processed with a curved surface, and then a sanding finish is applied. Next, a decorative material is adhered to the surface of the base material, and then the decorative material is heated. A method of bending and adhering to the side surface of a substrate (referred to as “post-form processing”) is generally known.
By the way, the said laminated body is a small thing with the curvature radius of a curved-surface part of 5 mm or less depending on the use. However, in the manufacturing method described above, since the decorative material such as melamine resin is not flexible, the radius of curvature of the curved surface portion is set to about 10 mm, and the above request cannot be met.

  Therefore, in order to solve the above problem, as a conventional method for manufacturing a laminate, first, the corner side of the base material is cut to form the first cutout portion on the base material, and the back surface side of the decorative material is cut. A method has been proposed in which a second notch is formed in the decorative material, and then the decorative material is bent at the second notch (see, for example, Patent Document 1). Thus, the laminated body whose curvature radius of a curved-surface part is 2-3 mm can be obtained by making a decorative material thin and making it easy to bend.

  However, in the said patent document 1, as a cutting tool which cuts a base material and a decorative material, the 1st cutting surface (notch cutting surface 9) and the 2nd cutting surface (thin cutting surface 10 which cross | intersects this 1st cutting surface). ) And an inclined surface that connects the first and second cutting surfaces, and a cutting blade (cutter 8) having the same (see FIG. 6 of Patent Document 1 above). Therefore, in the said patent document 1, the corner | angular part which a plane cross | intersects will be formed in the bending part in the 2nd notch part of a cosmetic material, stress concentrates on the corner | angular part, and a cosmetic material will be damaged. Therefore, at present, the incidence of defective products is extremely high. In particular, every time the radius of curvature of the curved surface of the laminate is changed, the guide rollers and guide pads in the folding process are used to prevent the surface of the decorative material from leaving a linear mark as a defective product. It is necessary to perform complicated work such as fine adjustment of the arrangement. Furthermore, it was essential to fill the adhesive between the first cutout portion of the base material and the second cutout portion of the decorative material so that the adhesive exhibits a buffer function when the decorative material is bent.

JP 2004-358873 A

  The present invention has been made in view of the above-described situation, and an object thereof is to provide a laminate having a very small radius of curvature of a curved surface portion capable of reducing the incidence of defective products and a cutting tool used for manufacturing the laminate. And

The present invention is as follows.
1. A laminate in which a decorative material is laminated on the surface and side surfaces of a substrate,
A first cutout portion is formed on the corner side of the base material, and a second cutout portion having an arcuate portion is formed in a portion corresponding to the first cutout portion on the back side of the decorative material. The laminate is characterized in that the decorative material is bent at the arc-shaped portion of the second cutout portion.
2. 1. The radius of curvature of the arc-shaped portion is 1 to 3 mm. The laminated body of description.
3. A cutting tool used for manufacturing a laminate formed by laminating a decorative material on the surface and side surfaces of a substrate,
A first cutting surface that forms a first notch by cutting a corner side of the base material, on which the decorative material is fixed, and a portion corresponding to the first notch on the back side of the decorative material are cut. And a second cutting surface that forms a second notch, and a cutting edge characterized in that an arcuate surface is formed at a portion of the second cutting surface that is continuous with the first cutting surface. Ingredients.
4). 2. The radius of curvature of the arcuate surface is 1 to 3 mm. The cutting tool described.
Preferred embodiments are shown below.
[1] A laminate manufacturing apparatus in which a decorative material is laminated on the surface and side surfaces of a substrate,
Cutout portion forming means for forming a first cutout portion on the corner side of the base material and forming a second cutout portion having an arcuate portion in a portion corresponding to the first cutout portion on the back surface side of the decorative material. When,
And a bending means for bending the decorative material at the arcuate portion of the second notch.
[2] The notch forming means includes a cutting tool having a cutting blade, and the cutting blade cuts a corner side of the base material to form the first notch, and the makeup A second cutting surface that cuts the back side of the material to form the second notch, and an arcuate surface is formed at a portion of the second cutting surface that is continuous with the first cutting surface. The manufacturing apparatus of the laminated body of said [1].
[3] The laminate manufacturing apparatus according to [2], wherein the arcuate surface has a radius of curvature of 1 to 3 mm.
[4] The lamination according to any one of [1] to [3], further including a transport unit configured to transport the base material and the decorative material in a state where the decorative material is fixed to the upper surface of the base material. Body manufacturing equipment.
[5] The notch forming unit further includes a first guide member that guides a side surface of the base material conveyed by the transport unit, and a second guide member that guides the upper surface of the decorative material. 4] The manufacturing apparatus of the laminated body of description.
[6] The laminate manufacturing apparatus according to [5], wherein the notch forming unit further includes a third guide member that guides a lower surface of a bending margin of the decorative material conveyed by the conveying unit.
[7] The notch forming means includes a support mechanism that supports the first guide member, the second guide member, and the cutting tool so that the cutting depth (D) of the substrate can be changed. Furthermore, the manufacturing apparatus of the laminated body as described in said [5] or [6].
[8] The laminate manufacturing apparatus according to any one of [1] to [7], wherein the bending means is a rod-shaped member.
[9] A method for producing a laminate in which a decorative material is laminated on the surface and side surfaces of a substrate,
Forming a first notch on the corner side of the base material and forming a second notch having an arcuate portion at a site corresponding to the first notch on the back side of the decorative material;
A step of bending the decorative material at the arcuate portion of the second cutout portion.
[10] The step of forming the cutout portion is a step of cutting the base material and the decorative material with a cutting tool to simultaneously form the first cutout portion and the second cutout portion. A manufacturing method of a layered product.
[11] The method for manufacturing a laminate according to [9] or [10], wherein the arcuate portion has a curvature radius of 1 to 3 mm.
[12] The step of forming the notch and the step of bending the decorative material are steps performed during the transportation of the base material and the decorative material in a state where the decorative material is fixed to the upper surface of the base material. The manufacturing method of the laminated body as described in any one of said [9] thru | or [11].
[13] The step of forming the cutout portion is a step of forming the first cutout portion and the second cutout portion in a state where the side surface of the base material being conveyed and the top surface of the decorative material are guided. The manufacturing method of the laminated body of said [12] description.
[14] The step of forming the cutout portion is a step of forming the first cutout portion and the second cutout portion in a state where the lower surface of the bending margin of the decorative material being conveyed is guided. ] The manufacturing method of the laminated body of description.
[15] In the above [13] or [14], the step of forming the notch is a step capable of changing the cutting depth (D) of the base material together with the guide position of the base material and the decorative material. The manufacturing method of the laminated body of description.
[16] The method for manufacturing a laminate according to any one of [9] to [15], wherein the step of bending the decorative material is a step of bending the decorative material with a rod-shaped member.

According to the laminate of the present invention, the decorative material is bent at the arc-shaped portion of the second notch, and the decorative material is laminated on the surface and side surfaces of the base material. The arc-shaped portion can be bent while dispersing the stress, and a laminate having a very small radius of curvature of the curved surface portion can be obtained while reducing the incidence of defective products. In particular, even when the magnitude of the radius of curvature of the curved surface portion of the laminate is changed, a complicated operation such as adjusting the arrangement of the bending means can be made to a necessary minimum (basically zero). Furthermore, it is not essential to fill the adhesive between the first cutout portion of the base material and the second cutout portion of the decorative material.
Further, when the radius of curvature of the arc-shaped portion is 1 to 3 mm, the decorative material can be bent more reliably with a minimum radius of curvature.

According to the cutting tool of the present invention, the corner side of the substrate is cut by the first cutting surface to form the first notch, and at the same time, the back side of the decorative material is cut by the second cutting surface to have the arc-shaped portion. A second notch is formed.
Further, when the radius of curvature of the arc-shaped surface is 1 to 3 mm, the radius of curvature of the arc-shaped portion of the second notch can be finished to 1 to 3 mm, and the decorative material can be made more reliable with a minimum radius of curvature. Can be folded.

According to the laminate manufacturing apparatus of the present embodiment, the first notch is formed on the corner side of the base material and the second notch having the arc-shaped portion on the back side of the decorative material by the notch forming means. The decorative material is bent at the arc-shaped portion of the second notch by the bending means, and a laminate is obtained by laminating the decorative material on the surface and side surfaces of the base material. As described above, since the decorative material is bent while the stress is dispersed at the arc-shaped portion of the second notch portion, it is possible to obtain a laminate in which the curvature radius of the curved surface portion is extremely small while reducing the incidence of defective products. it can. In particular, even when the magnitude of the radius of curvature of the curved surface portion of the laminate is changed, a complicated operation such as adjusting the arrangement of the bending means can be made to a necessary minimum (basically zero). Furthermore, it is not essential to fill the adhesive between the first cutout portion of the base material and the second cutout portion of the decorative material.
The notch forming means includes a cutting tool having a cutting blade, and the cutting blade has a first cutting surface and a second cutting surface, and is continuous with the first cutting surface of the second cutting surface. When the arcuate surface is formed in the part, the first and second cutouts can be formed at the same time, and the manufacturing efficiency can be improved.
Further, when the radius of curvature of the arc-shaped surface is 1 to 3 mm, the radius of curvature of the arc-shaped portion of the second notch can be finished to 1 to 3 mm, and the decorative material can be made more reliable with a minimum radius of curvature. Can be folded.
Further, in the case of further comprising a conveying means, the first and second cutout portions can be formed and the decorative material can be bent during the conveyance of the base material and the decorative material with the decorative material fixed to the upper surface of the base material. Can do. As a result, damage to the surface of the decorative material can be suppressed as compared with a case where the base material and the decorative material are transported in a state where the base material is fixed to the upper surface of the decorative material. Further, the base material and the decorative material can be smoothly transferred from the step of integrating the base material and the decorative material to the step of forming the cutout portion without being inverted.
Moreover, when the said notch part formation means is further provided with the 1st guide member and the 2nd guide member, a 1st and 2nd guide member positions a cutting tool more correctly with respect to a base material and a decorative material. The first and second cutout portions can be formed more accurately.
Further, when the notch portion forming means further includes a third guide member, the lower surface of the bending allowance of the cosmetic material is guided by the third guide member. Compared to the above, the notch forming means can be configured more simply and inexpensively, and the cutting tool can be positioned more accurately.
Moreover, when the said notch part formation means is further provided with the 1st guide member, the 2nd guide member, and the support mechanism which supports the said cutting tool displaceably, the 1st and 2nd guide member with respect to a base material and a decorative material In addition to the guide position, the cutting depth of the base material can be changed according to the radius of curvature of the curved surface portion of the laminate. As a result, it is possible to obtain a plurality of types of laminates having different curvature radii of the curved surface portion with one cutting tool.
Further, when the bending means is a rod-shaped member, the decorative material can be bent more reliably with a minimum curvature radius. Further, the bending means, and thus the entire apparatus can be made simpler and less expensive.

In addition, according to the manufacturing method of the laminated body of this embodiment, first, while forming the 1st notch part in the corner | angular side of a base material, the 2nd notch part which has an arc-shaped part in the back surface side of a decorative material is formed. Next, the decorative material is bent at the arc-shaped portion of the second notch, and a laminated body obtained by laminating the decorative material on the surface and the side surface of the base material is obtained. As described above, since the decorative material is bent while the stress is dispersed at the arc-shaped portion of the second notch portion, it is possible to obtain a laminate in which the curvature radius of the curved surface portion is extremely small while reducing the incidence of defective products. it can. In particular, even when the magnitude of the radius of curvature of the curved surface portion of the laminate is changed, a complicated operation such as adjusting the arrangement of the bending means can be made to a necessary minimum (basically zero). Furthermore, it is not essential to fill the adhesive between the first cutout portion of the base material and the second cutout portion of the decorative material.
When the step of forming the notch is a step of cutting the base material and the decorative material with a cutting tool to simultaneously form the first notch and the second notch, the first and first Two notches can be formed simultaneously, and manufacturing efficiency can be improved.
Further, when the radius of curvature of the arc-shaped portion is 1 to 3 mm, the decorative material can be bent more reliably with a minimum radius of curvature.
In addition, the step of forming the notch and the step of bending the decorative material are steps performed during conveyance of the base material and the decorative material in a state where the decorative material is fixed to the upper surface of the base material. In this case, the first and second cutout portions can be formed and the decorative material can be folded during the conveyance of the base material and the decorative material. As a result, damage to the surface of the decorative material can be suppressed as compared with a case where the base material and the decorative material are transported in a state where the base material is fixed to the upper surface of the decorative material. Further, the base material and the decorative material can be smoothly transferred from the step of integrating the base material and the decorative material to the step of forming the cutout portion without being inverted.
In addition, when the step of forming the notch is a step of forming the first notch and the second notch with the side surface of the base material and the top surface of the decorative material being guided, The cutting tool can be positioned at a more appropriate position with respect to the material and the decorative material, and the first and second cutout portions can be formed more accurately.
Further, when the step of forming the notch is a step of forming the first notch and the second notch with the lower surface of the bending margin of the decorative material being guided, for example, a decorative material Compared to the one that absorbs the bending allowance, the notch forming means can be configured more simply and inexpensively, and the cutting tool can be positioned more accurately.
When the step of forming the notch is a step in which the cutting depth of the base material and the cutting thickness of the decorative material can be changed together with the guide positions of the base material and the decorative material, In addition to the guide positions of the first and second guide members relative to the decorative material, the cutting depth of the base material can be changed in accordance with the radius of curvature of the curved surface portion of the laminate. As a result, a laminate having different curvature radii of the curved surface portion can be obtained with one cutting tool.
Further, when the step of bending the decorative material is a step of bending the decorative material with a rod-shaped member, the decorative material can be bent more reliably. In addition, the entire apparatus can be made simpler and less expensive.

1. Laminated body The laminated body which concerns on this embodiment is equipped with the base material and decorative material which are described below.
In addition, as an application of the said laminated body, building materials, such as a surface material of furniture, a flooring material, a wall material, a door material, a partition material, a counter material, can be mentioned, for example.
The curvature radius of the curved surface part 50a of the laminate 50 can be, for example, 1.5 to 3.5 mm (preferably 2 to 3 mm) (see FIG. 11).

The above-mentioned “base material” is not particularly limited in material, shape, size, etc. as long as the first cutout is formed on the corner side.
Examples of the material of the base material include particle board, medium fiber board (MDF), wood veneer, wood plywood and the like. From the viewpoints of recyclability and low price, a particle board is preferable.

  The shape, size, etc. of the “first notch” are not particularly limited. The cutting depth D (see FIG. 5) of the first notch is appropriately selected according to the size of the curvature radius of the curved surface of the laminated body. That is, if the cutting depth D is increased, a curved surface portion having a relatively large radius of curvature is formed, and if the cutting depth D is decreased, a curved surface portion having a relatively small radius of curvature is formed.

The “decorative material” is not particularly limited in material, shape, size, or the like as long as the second cutout portion is formed in a portion corresponding to the first cutout portion on the back surface side.
Examples of the material of the decorative material include thermosetting resins such as melamine resin, dup resin, and polyester resin. As the decorative material, for example, a metallic decorative material formed by laminating a resin sheet on a metal foil or laminating a resin layer on the front and back of the metal foil can be employed. The thickness of the thermosetting resin decorative material is usually about 0.8 to 1.2 mm.
Note that the decorative material may have, for example, a single layer structure or a multilayer structure.

  The “second cutout” is not particularly limited in shape, size, etc. as long as it has an arcuate portion. The thickness T (see FIG. 5) of the decorative material formed by forming the second notch is appropriately selected according to the material, thickness, etc. of the decorative material. Further, the cutting length L (see FIG. 5) of the flat surface portion excluding the arc-shaped portion of the second notch portion is appropriately selected according to the radius of curvature of the curved surface portion of the laminate. It is preferable that the midpoint of the cutting length L substantially coincides with the phase of the side surface of the substrate.

As long as the above-mentioned “arc-shaped part” can bend the decorative material with a minimal curvature radius, its shape, curvature radius, etc. are not particularly limited. This arc-shaped part is normally formed in the site | part connected with the one end side of the said 1st notch part of the 2nd notch part.
The arc-shaped portion may have, for example, an arc surface with one radius of curvature, or an arc surface with two or more different radii of curvature.
The radius of curvature of the arcuate portion is preferably 1 to 3 mm, more preferably 1.2 to 2.8 mm, and particularly preferably 1.5 to 2 mm. This is because, when the radius of curvature is 1 mm or more, chipping of the cutting tool can be suppressed, and when the radius of curvature is 3 mm or less, the decorative material can be more reliably bent with a minimum radius of curvature. .

2. Laminate Manufacturing Apparatus The laminate manufacturing apparatus according to this embodiment includes notch forming means and bending means described below. In addition, as said laminated body, the above-mentioned Embodiment 1. The structure of the laminate described in the above can be applied.
The said laminated body manufacturing apparatus can further be provided with the conveyance means mentioned later, for example.

  The “notch forming means” forms the first notch on the corner side of the base material, and forms the second notch on a portion corresponding to the first notch on the back side of the decorative material. As long as it is a means to do, the structure, formation form, etc. will not be ask | required in particular.

  The said notch part formation means can be equipped with the cutting tool which has a 1 or 2 or more cutting blade, for example. The cutting blade includes a first cutting surface and a second cutting surface described below.

  The “first cutting surface” is not particularly limited in shape, size, or the like as long as the first notch can be formed by cutting the corner side of the substrate. On the first cutting surface 26, for example, an arcuate surface 26b can be formed at a portion connected to one end side of the second cutting surface 27 (see FIG. 5). The arcuate surface suppresses the chipping of the cutting tool.

The “second cutting surface” is not particularly limited in shape, size, or the like as long as the second notch can be formed by cutting the back side of the decorative material. On the second cutting surface 27, an arcuate surface 27b is formed at a portion continuing to one end side of the first cutting surface 26 (see FIG. 5).
As long as the arcuate surface can form the arcuate part of the second notch, its shape, radius of curvature, etc. are not particularly limited. The arcuate surface can be, for example, an arc surface having one radius of curvature or an arc surface having two or more different radii of curvature. The radius of curvature of the arcuate surface is preferably 1 to 3 mm, more preferably 1.2 to 2.8 mm, and particularly preferably 1.5 to 2 mm. This is because the arcuate portion of the second notch can be finished to a predetermined radius of curvature (for example, 1 to 3 mm).
The length L (see FIG. 5) of the plane excluding the arc-shaped surface of the second cutting surface can be, for example, 3.2 to 4 mm (preferably 3.4 to 3.8 mm).
The thin portion thickness T (see FIG. 5) of the decorative material by the second cutting surface can be, for example, 0.2 to 0.8 mm (preferably 0.4 to 0.6 mm).

  In addition, the cutting process by the said cutting tool is normally performed in the state which fixed the flat decorative material on the surface of the base material, and the bending margin of the decorative material overhanged from the surface of the base material.

The “folding means” is not particularly limited in its structure and folding form as long as the decorative material can be folded at the arc-shaped portion of the second notch.
Examples of the bending means include a rod-shaped member, a guide roller, and a guide pad. From the viewpoint that it can be configured more simply and inexpensively, a rod-shaped member is preferable. This rod-shaped member can be disposed, for example, inclined with respect to the transport direction.

As long as the “conveying means” is a means for conveying the base material and the decorative material in a state where the decorative material is fixed on the upper surface of the base material, the structure, the conveying form, and the like are not particularly limited. In this case, the notch forming means and the bending means are usually provided along the transport path of the transport means.
As said conveyance means, various conveyor mechanisms etc. can be mentioned, for example.
The fixing form of the base material and the decorative material is not particularly limited, but usually both are bonded.

In the case of including the above-described transport unit, the notch forming unit includes, for example, the above-described cutting tool, a first guide member that guides the side surface of the base material transported by the transport unit, and the upper surface of the decorative material. And a second guiding member for guiding. Examples of the first and second guide members include a copying roller, a ball, and a sliding surface member.
For example, the cutting tool may be disposed between the first and second guide members. Thereby, a cutting tool can be positioned in a more exact position with respect to a base material and a decorative material, and a more exact 1st and 2nd notch part can be formed.

  In addition to the cutting tool and the first and second guide members, the notch forming means can include a third guide member that guides the back surface of the plate-shaped decorative material for bending. Thereby, a cutting tool can be positioned in a more exact position with respect to a base material and a decorative material. Examples of the third guide member include a sliding surface member, a copying roller, and a ball. Moreover, this 3rd guide member can be supported by elastic members, such as a leaf | plate spring, for example, or can be supported by movable members, such as a piston rod of a cylinder. Thereby, the back surface of the bending margin of the decorative material can be pressed and guided with a predetermined pressing force.

  The notch forming means includes, for example, a support mechanism that displaceably supports the first guide member, the second guide member, the third guide member, and the cutting tool so that the cutting depth of the base material can be changed. Further, it can be provided. This support mechanism normally supports the first guide member, the second guide member, the third guide member, and the cutting tool so that they can be displaced and positioned.

  In addition, the manufacturing apparatus of the said laminated body can further be provided with the application means which apply | coats an adhesive agent to the 1st notch part and 2nd notch part which were formed by the said notch part formation means, for example. Moreover, the manufacturing apparatus of the said laminated body can further be equipped with the heating means which heats the cosmetics in which the 2nd notch part was formed by the said notch part formation means, for example.

3. Manufacturing method of laminated body The manufacturing method of the laminated body which concerns on this embodiment is equipped with the notch part formation process and bending process which are described below. In addition, as said laminated body, the above-mentioned Embodiment 1. The structure of the laminate described in the above can be applied.

  In the “notch forming step”, the first notch is formed on the corner side of the base material, and the second notch is formed in a portion corresponding to the first notch on the back side of the decorative material. As long as it is a process, its formation form, procedure, etc. are not particularly limited.

  It is preferable that the said notch part formation process is a process of forming a 1st and 2nd notch part simultaneously with one cutting tool, for example. In addition, as said cutting tool, the said Embodiment 2. The configuration of the cutting tool described in the above can be applied. Further, the cutting with the cutting tool is usually performed in a state where a flat decorative material is fixed on the surface of the base material, and the bending margin of the decorative material projects in an overhang shape from the surface of the base material.

As long as the “bending step” is a step in which the decorative material is bent at the arc-shaped portion of the second cutout portion, the folding form, the procedure, and the like are not particularly limited.
The bending step is preferably a step of bending the decorative material with a rod-shaped member, for example. In addition, as said rod-shaped member, the said Embodiment 2. The structure of the rod-shaped member described in the above can be applied.

  Here, it is preferable that the said notch part formation process and a bending process are processes performed during conveyance of a base material and cosmetics in the state which fixed the cosmetics on the upper surface of the base material, for example. In addition, as a means to convey the said base material, the said Embodiment 2. It is possible to apply the configuration of the conveying means described in (1).

As described above, when the notch forming step and the bending step are steps performed during the conveyance of the base material and the decorative material, the notch portion forming step includes, for example, the side surface of the base material being conveyed and the makeup. In the state where the upper surface of the material is guided, the first notch and the second notch can be formed. Furthermore, the notch portion forming step includes, for example, the first notch portion and the back surface of the bending margin of the decorative material in addition to the side surface of the base material being conveyed and the upper surface of the decorative material. It can be a step of forming the second notch.
Examples of means for guiding the side surface of the base material, the side surface of the decorative material, and the back surface of the bending margin of the decorative material include, for example, Embodiment 2 above. The structure of the guide member described in the above can be applied.

  It is preferable that the said notch part formation process is a process which can change the cutting depth of the said base material with the guide position of the said base material and the said decorative material, for example.

  In addition, the manufacturing method of the said laminated body can further be provided with the application | coating process which apply | coats an adhesive agent to the 1st notch part and 2nd notch part which were formed at the said notch part formation process, for example. Moreover, the manufacturing method of the said laminated body can further be equipped with the heating process which heats the cosmetics in which the 2nd notch part was formed in the said notch part formation process, for example.

4). Cutting tool The cutting tool according to the present embodiment is a cutting tool used for manufacturing a laminate formed by laminating a cosmetic material on the surface and side surfaces of a base material, and the base material on which the cosmetic material is fixed. A cutting blade having a first cutting surface for cutting a corner side of the first cutting surface and a second cutting surface for cutting a portion corresponding to the first notch portion on the back surface side of the decorative material, An arcuate surface is formed at a portion continuous with the first cutting surface.

  In addition, the cutting process by the said cutting tool is normally performed in the state which fixed the flat decorative material on the surface of the base material, and the bending margin of the decorative material overhanged from the surface of the base material. Moreover, as a structure which concerns on the said laminated body, the said Embodiment 1. The structure which concerns on the laminated body demonstrated by 1 is applicable. Moreover, as a structure which concerns on the said cutting tool, the said Embodiment 2 is mentioned, for example. The structure which concerns on the cutting tool demonstrated in (1) is applicable.

  Hereinafter, the present invention will be specifically described with reference to the drawings. In this embodiment, as shown in FIG. 11, as a “laminated body” according to the present invention, a laminated body 50 having a curved surface portion 50 a, in which a decorative material 52 is laminated on the surface and side surfaces of a base material 51. Illustrate. In addition, a substrate 51 made of particle board is adopted, and a decorative plate 52 made of melamine resin having a thickness of 1 mm is adopted.

(1) Configuration of Laminate Manufacturing Apparatus As shown in FIG. 1, a laminate manufacturing apparatus 1 according to this embodiment includes a conveyor mechanism 2 (conveying means according to the present invention) disposed along a horizontal direction. As an example.). From the upstream side of the conveyor mechanism 2, an integrated body of the base material 51 and the decorative material 52 in a state where the decorative material 52 is stuck on the upper surface of the base material 51 is charged and transported along a predetermined transport direction P. .
A cutting mechanism 3 (illustrated as “notch forming means” according to the present invention), a coating mechanism 4, a heating mechanism 5, a roller mechanism 6, and a trimming mechanism 7 are sequentially disposed along the conveyor mechanism 2. Yes.

As shown in FIGS. 2 and 3, the cutting mechanism 3 includes a support 10 fixed to a frame 8 (see FIG. 1). A first moving body 11 is supported on the support body 10 so as to be movable in the front-rear direction (in the drawing, the direction perpendicular to the paper surface). Between the support 10 and the first moving body 11, a ball screw mechanism 12 is interposed in which a screw shaft is rotated by an operation handle (not shown). By adjusting the ball screw mechanism 12, the position of the first moving body 11 in the front-rear direction can be adjusted with respect to the support body 10, and the cutting depth by a cutting tool described later can be changed.
Here, it can be said that the “support mechanism” according to the present invention is configured by the support 10, the first moving body 11, the ball screw mechanism 12, and the like.

  A second moving body 13 is supported on the first moving body 11 so as to be movable in the front-rear direction. A third moving body 14 is supported on the second moving body 13 so as to be movable in the vertical direction. The second moving body 13 is moved in the front-rear direction by the operation of the drive cylinder 15. The third moving body 13 is moved in the vertical direction by the operation of the drive cylinder 16. Thereby, the cutting tool mentioned later can be displaced between a cutting position and a retracted position.

  A drive motor M is fixed to the third moving body 14. A cutting tool 20 is fixed to the drive shaft of the drive motor M. A support member (not shown) that pivotally supports a first guide roller 21 (exemplified as a “first guide member” according to the present invention) that guides the side surface of the base material 51 along the third moving body 14. Is fixed. The third moving body 14 is supported by a support member (not shown) that pivotally supports a second guide roller 22 (illustrated as a “first guide member” according to the present invention) that follows the upper surface of the decorative material 52. ) Is fixed. Furthermore, a presser guide member 23 that presses and guides the back surface of the bending allowance 52 a of the decorative material 52 is fixed to the third moving body 14 via a leaf spring 24.

  As shown in FIG. 4, the cutting tool 20 according to the present embodiment has a large number (20 blades in this embodiment) of cutting blades 25. As shown in FIG. 5, each cutting blade 25 includes a first cutting surface 26 and a second cutting surface 27.

  The first cutting surface 26 includes a flat surface 26a and an arcuate surface 26b having a predetermined radius of curvature (for example, 0.5 mm) continuous to one end side of the flat surface 26a. The first cutting surface 26 cuts the corners of the base material 51 to form a chamfered first notch 53 in the base material 51.

The second cutting surface 27 includes a flat surface 27a, a first arcuate surface 27b having a predetermined curvature radius (for example, 2 mm) continuous with one end side of the flat surface 27a, and a predetermined curvature continuous with the other end side of the flat surface 27a. A second arcuate surface 27c having a radius (for example, 2 mm). The first arcuate surface 27 b is continuous with the arcuate surface 26 b of the first cutting surface 26. With this second cutting surface 27, the back surface side of the decorative material 52 is cut to form a second notch 54 in the decorative material 52. In particular, the first arcuate surface 27b forms an arcuate part 54a having a predetermined curvature radius (for example, 2 mm) of the second notch 54.
The length L of the flat surface 27a of the second cutting surface 27 is set to 3.6 mm. Further, the thin portion thickness T of the decorative material 52 by the second cutting surface 27 is set to 0.5 mm.

  As shown in FIG. 1, the coating mechanism 4 applies a hot melt adhesive 36 (see FIG. 8) to the first cutout portion 53 and the second cutout portion 54 formed by cutting with the cutting mechanism 3. It has.

  As shown in FIG. 1, the heating mechanism 5 includes a plurality of heaters 31 that heat the upper surface of the decorative material 52. On the downstream side of the heating mechanism 5, a bar-like member 32 (illustrated as “bending means” according to the present invention) having a flat plate shape and a semicircular cross section that is inclined along the conveyance direction P is disposed. . With this rod-shaped member 32, the decorative material 52 immediately after heating is bent and laminated on the side surface of the base material 51.

The roller mechanism 6 includes two pinch rollers.
The trimming mechanism 7 includes two trimming portions 34 that trim the end portions.

(2) Action of Laminate Manufacturing Apparatus Next, the action of the laminate manufacturing apparatus 1 will be described.
First, as shown in FIG. 6, the integrated body of the base material 51 and the decorative material 52 in a state where the decorative material 52 is adhered to the upper surface of the base material 51 is transported along the transport direction P by the conveyor mechanism 2. . Then, when the integrated object is conveyed to the cutting mechanism 3, as shown in FIG. 7, the side surface of the base 51 is copied and guided by the first guide roller 21, and the upper surface of the decorative material 52 is the second guide roller. 22, and the back surface of the bending allowance 52 a of the decorative material 52 is pressed and guided by the presser guide member 23. In the guided state, the corner side of the base material 51 is cut by the rotationally driven cutting tool 20 to form the first cutout portion 53, and at the same time, the back surface side of the decorative material 52 is cut to form the second cutout portion 54. It is formed.

  Next, when the integrated object is conveyed to the application mechanism 4, as shown in FIG. 8, the hot melt adhesive 36 is applied to the first notch 53 and the second notch 54. Next, when the integrated object is conveyed to the heating mechanism 5, the upper surface of the decorative material 52 is heated by the heater 31 from above. After that, when the integrated object is conveyed to the downstream side of the heating mechanism 5, as shown by a virtual line in FIG. The bending margin 52a of the decorative material 52 is laminated on the side surface (see FIG. 10).

  Next, when the integrated object is conveyed to the roller mechanism 6, it is passed between two pinch rollers. Next, when the integrated object is conveyed to the trimming mechanism 7, the end portion is trimmed by the trimming unit 34. As a result, the laminated body 50 (refer FIG. 11) which has the curved surface part 50a of the minimum curvature radius (for example, 3 mm) is obtained.

(3) Effects of Example As described above, in this example, the cutting tool 20 cuts the corner side of the base material 51 to form the first cutout portion 53 and cuts the back surface side of the decorative material 52. Since the two cutout portions 54 are formed and the decorative material 52 is bent at the arc-shaped portion 54a (see FIG. 9) of the second cutout portion 54 by the rod-like member 32, the second cutout portion is bent when the decorative material 52 is bent. The stress is well dispersed at the arc-shaped portion 64a of the portion 54, and even if the bending radius of curvature is extremely small, damage to the decorative material can be suppressed. As a result, the incidence of defective products (for example, damage to cosmetic materials, linear marks, etc.) is greatly reduced compared to conventional products that have corners where planes intersect at the cutouts on the decorative material side. Thus, it is possible to obtain the laminate 50 having the curved surface portion 50a having the minimum curvature radius. In particular, even when the radius of curvature of the curved surface portion of the product (laminated body 50) is changed, a complicated operation of finely adjusting the arrangement of the bar-shaped members 32 is not required. Further, it is not always necessary to fill the adhesive between the first cutout portion 53 of the base material 51 and the second cutout portion 54 of the decorative material 52. Further, since the second cutout portion 54 is formed on the back surface side of the decorative material 52, when the decorative material is heated, the temperature of the thin-walled portion of the decorative material 52 rises faster than the other portions, and only the bent portion is efficiently Can be heated. As a result, the gloss of the decorative plate 52 due to heat can be minimized. A similar advantage can be obtained by applying the hot melt adhesive 36 to the first and second cutout portions 53 and 54. Furthermore, filling the part to be folded with an adhesive also serves to maintain product strength.
In addition, conventional post-form processing required curved surface processing and sanding finish of the base material, but this manufacturing apparatus 1 does not require them, and can achieve both reduction in cutting amount and improvement in material yield, and further processing. A good working environment can be realized by suppressing noise and the like. In addition, the entire manufacturing apparatus 1 can be configured simply and inexpensively, can be configured more compactly, and the processing space can be reduced. Further, in the conventional post-form processing, it is necessary to change the set of the press roller and the set of the guide pad every time the radius of curvature of the curved surface portion of the laminated body is changed, but the manufacturing apparatus 1 does not need them. Therefore, complicated setup work can be minimized.

  In the present embodiment, since the first and second cutting surfaces 26 and 27 are provided on each cutting blade 25 of the cutting tool 20, the first and second cutout portions 53 and 54 are formed by one cutting tool 20. They can be formed at the same time, and the production efficiency can be improved. Further, in this embodiment, the conveyor mechanism 2 transports the integrated body of the base material 51 and the decorative material 52 in a state where the decorative material 52 is fixed to the upper surface of the base material 51, and during the transport, the first and first Since the two cut-out portions 53 and 54 are formed and the decorative material 52 is bent, the makeup is compared with the case where the base material and the decorative material are conveyed integrally with the base material fixed to the top surface of the decorative material. Damage to the surface of the material can be suppressed. Further, the base material and the decorative material can be smoothly transferred from the step of integrating the base material and the decorative material to the step of forming the cutout portion without being inverted.

In the present embodiment, since the base material 51 and the decorative material 52 are guided and supported by the first guide roller 21, the second guide roller 22, and the presser guide member 23, the cutting process is performed. The cutting tool 20 can be positioned at a more appropriate position with respect to 51 and the decorative material 52, and the first and second cutout portions 53 and 54 can be formed more accurately.
Further, in the present embodiment, the third moving body 14 is provided so that the position of the third moving body 14 can be adjusted in the front-rear direction with respect to the support body 10. The cutting depth D of the base material 51 by the cutting tool 20 can be easily changed. As a result, a single cutting tool 20 can obtain a plurality of types of laminated bodies having different curvature radii of the curved surface portion 50a. Furthermore, if the thin part thickness T of the decorative material 52 by the cutting tool 20 is changed, it is possible to obtain the laminate 50 having the curved surface portion 50a having a wider radius of curvature.

In the present invention, the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention depending on the purpose and application. That is, in the present embodiment, the decorative material 52 made of melamine resin is exemplified, but the present invention is not limited to this, and may be a metallic decorative material 52 made of a metal foil (for example, an aluminum foil). In this case, it is preferable to omit heating (or low temperature heating) of the decorative material by the heating mechanism 5. This is because the film for preventing scratches on the surface of the decorative material is not melted.
In the present embodiment, the first cutout portion 53 and the second cutout portion 54 are formed by one cutting tool 20, but the present invention is not limited to this. For example, the first cutout portion 53 is formed with the first cutout portion 53. You may make it provide a cutting tool and the 2nd cutting tool which forms the 2nd notch part 54. FIG.
Further, in this embodiment, the integrated body of the base material 51 and the decorative material 52 is conveyed in a state in which the decorative material 52 is fixed to the upper surface of the base material 51. However, the present invention is not limited to this. You may make it convey the integrated object of a base material and a decorative material in the state which fixed the base material to the upper surface.
Furthermore, in the laminate of the present embodiment, the decorative material may be laminated on one surface or both surfaces of the base material, or the decorative material may be laminated on one side surface or both side surfaces of the base material. Good.

  This is used as a technique for producing a laminate in which a decorative material is laminated on the surface and side surfaces of a substrate. In particular, it is suitably used as a technique for producing a laminate for building materials such as furniture surface materials, floor materials, wall materials, door materials, partition materials, and counter materials.

It is a whole side view of the manufacturing apparatus of the laminated body which concerns on a present Example. It is a side view of the cutting mechanism which concerns on a present Example. FIG. 3 is a view taken in the direction of arrow III in FIG. 2. It is a principal part front view of the cutting tool which concerns on a present Example. FIG. 5 is an enlarged view taken along the arrow V in FIG. 4. It is effect | action explanatory drawing which shows the conveyance state of a base material and a decorative material. It is action explanatory drawing which shows the cutting state of a base material and a decorative material. It is effect | action explanatory drawing which shows the heating state of a decorative material. It is effect | action explanatory drawing which shows the bending state of a decorative material. It is effect | action explanatory drawing which shows the state by which the decorative material was bent. It is a principal part perspective view of the laminated body which concerns on a present Example.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1; Manufacturing apparatus, 2; Conveyor mechanism, 3; Cutting mechanism, 20; Cutting tool, 21; First guide roller, 22; Second guide roller, 25; Cutting blade, 26; First cutting surface, 27; Cutting surface, 27b; Arc-shaped surface, 32; Bar-shaped member, 50; Laminate, 51; Base material, 52; Cosmetic material, 53; First notch, 54; Second notch, 54a;

Claims (4)

A laminate in which a decorative material is laminated on the surface and side surfaces of a substrate,
A first cutout portion is formed on the corner side of the base material, and a second cutout portion having an arcuate portion is formed in a portion corresponding to the first cutout portion on the back side of the decorative material. The laminate is characterized in that the decorative material is bent at the arc-shaped portion of the second cutout portion.   The laminate according to claim 1, wherein a radius of curvature of the arc-shaped portion is 1 to 3 mm. A cutting tool used for manufacturing a laminate formed by laminating a decorative material on the surface and side surfaces of a substrate,
A first cutting surface that forms a first notch by cutting a corner side of the base material, on which the decorative material is fixed, and a portion corresponding to the first notch on the back side of the decorative material are cut. And a second cutting surface that forms a second notch, and a cutting edge characterized in that an arcuate surface is formed at a portion of the second cutting surface that is continuous with the first cutting surface. Ingredients.   The cutting tool according to claim 3, wherein a radius of curvature of the arcuate surface is 1 to 3 mm.

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