JP5458285B1 - Panel processing apparatus, panel manufacturing method, and panel - Google Patents

Abstract

The present invention provides a panel processing apparatus capable of forming a kerf to a desired depth without causing destruction of the panel.
A processing apparatus 1 forms a kerf to a first depth while rotating from a transport unit 2 that transports a panel 8, and from the front and / or back side of the panel 8 transported by the transport unit 2. The first front blade part 4a and the back blade part 5a to be inserted into the kerf formed by the first front blade part 4a and the back blade part 5a, and the first deeper than the first depth while rotating. After cutting with the second front blade portion 4b and the back blade portion 5b, and the second front blade portion 4b and the back blade portion 5b, which further cuts the kerf to a depth of 2, rotate to further enter the kerf However, a third front-surface blade portion 4c and a back-surface blade portion 5c that further cut the kerf to a third depth deeper than the second depth are provided.
[Selection] Figure 2

Description

  The present invention relates to a processing apparatus used when manufacturing a panel such as a plywood board, an MDF (Medium Density Fiberboard), and a resin board, and more specifically, warping or twisting by inserting a kerf. The present invention relates to a processing apparatus for performing processing to be prevented on a panel.

  Panels used for die-cutting templates such as paper, flooring, game machines for gaming machines, etc. must be made of materials that are required to be accurate and do not warp or twist. FIG. 14 is a schematic cross-sectional view of a conventional plywood 90 with a kerf used for a template. The conventional plywood 90 divides the wood fiber of the plywood main body 92 by inserting a plurality of kerfs 93 in a straight line into a plywood main body 92 on which a plurality of boards are bonded. As a result, warping and twisting can be prevented. A thin plate 91 is bonded to the plywood main body 92 so as to cover the cut groove 93.

  Such a structure is disclosed in Patent Documents 1 and 2, for example. For example, when a plywood is used as a base material for a template, as described in Patent Document 1, grooves are cut in a lattice shape on the front and back surfaces of the plywood main body, and a decorative groove is formed on the surface with the grooves. A panel in which thin plates are bonded together is known. In addition, as described in Patent Document 2, a plywood is also known in which a groove is cut in an oblique direction to a depth at which a wood veneer serving as a core plate is divided, and the cut groove is covered with a sheet-like material. Yes.

JP 2005-297228 A Japanese Patent No. 2876104

  When an attempt is made to manufacture a highly accurate panel that prevents warping and twisting, the kerf is preferably provided to a depth of, for example, about 60 to 70% with respect to the thickness. In order to provide the kerf to such a depth, the blade for providing the kerf must have a certain thickness. When the thickness of the blade is increased, it is possible to provide a groove deeply, but on the other hand, the width of the kerf becomes wide and the panel may be easily broken.

  In addition, when plywood is used as the material for the panel, the hardness varies depending on the type of tree used as the material. In addition to plywood, MDF or resin plate may be used. As described above, since the hardness differs depending on the tree type and the material type, there is a case where it is not possible to provide a cut groove to a desired depth with a single blade.

  In patent document 1, it is not specifically disclosed about what kind of processing apparatus should be used to provide a kerf to a desired depth. In FIG. 4 of Patent Document 2, it is disclosed that the kerf is provided by the cutting blade provided on the rotating shaft. However, when the kerf is provided to a certain depth, the width of the kerf is obtained with one cutting blade. May become wider and the panel may be destroyed. Further, depending on the tree type of the panel and the hardness of the material type, it may not be possible to provide a cut groove to a desired depth with a single cutting blade.

  SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a panel processing apparatus and a panel manufacturing method that can cut grooves to a desired depth without causing destruction of the panel. In addition, an object of the present invention is to provide a highly accurate panel that is unlikely to be warped and twisted and is not easily destroyed using the processing apparatus and the manufacturing method.

  In order to solve the above problems, the present invention has the following features. The present invention is a processing apparatus for forming a kerf in a panel, and includes a transport unit that transports the panel and a first surface while rotating from the front surface and / or the back surface side of the panel transported by the transport unit The first blade part that forms the kerf to the depth and the kerf formed by the first blade part so as to enter the kerf further to the second depth deeper than the first depth while rotating. And a second blade part to be cut.

  Preferably, after the incision by the second blade portion, a third blade portion that further enters the kerf and further cuts the kerf to a third depth deeper than the second depth while rotating is provided. Good.

  Preferably, the first blade portion includes a first front blade portion that forms a groove on the surface of the panel, and a first back blade portion that forms a groove on the back surface of the panel, and the second blade The portion includes a second front blade portion that forms a groove on the surface of the panel and a second back blade portion that forms a groove on the back surface of the panel, and the third blade portion is formed on the surface of the panel. It is good to include the 3rd surface blade part which forms a kerf, and the 3rd back blade part which forms a kerf on the back of a panel.

  Preferably, at least one of the first to third blade portions may be capable of adjusting the depth of cutting.

  Preferably, the conveyance unit may convey the panel at an angle with respect to the rotation axis of the first blade part.

  Preferably, the conveyance unit may have a size capable of conveying the panel in both the vertical and horizontal directions.

  Preferably, the second blade portion may have a sharper blade edge than the first blade portion.

  Preferably, the first blade portion may be cut obliquely with respect to the panel surface to form a kerf.

  The present invention is a manufacturing method for manufacturing a panel in which kerfs are formed, and the first depth is rotated by a first blade portion that rotates from the front surface and / or the back surface side of the panel while the panel is transported. A kerf is formed up to a depth and enters the kerf formed by the first blade part, and the slicing groove is further cut to a second depth deeper than the first depth by the rotating second blade part. A panel having kerfs is manufactured.

The present invention is a panel having a plurality of kerfs on the front surface and / or back surface, and a member attached to the surface on which the kerfs are formed, and each kerf forms a kerf while rotating. The first of the panel processing apparatus which forms the kerf while rotating so as to enter the kerf formed by the first blade part after being cut to the first depth by the first blade part of the panel processing apparatus. It is formed by being cut to a second depth deeper than the first depth by the two blade portions .

  According to the present invention, the kerf is further cut to the second depth deeper than the first depth by the second blade part so as to enter the kerf formed by the first blade part. Without increasing the width of the kerf, the kerf can be formed deeper. As a result, it is possible to provide a highly accurate panel that can prevent warping and twisting while preventing breakage of the panel. Furthermore, if the third blade portion is used to cut to a third depth that is deeper than the second depth, a sharp groove can be formed deeper and a panel with higher accuracy can be provided. .

  By using the front blade portion and the rear blade portion to simultaneously form the front groove and the rear groove in the processing apparatus, the panel can be processed efficiently and productivity is improved.

  By making it possible to adjust the depth of any one of the first to third blade portions, the depth of the kerf can be set to a desired depth. Also, if the blade portions that are not used are raised so as not to form kerfs in accordance with the specifications, various patterns of kerfs can be formed flexibly.

  By enabling the transport unit to transport the panel in an oblique direction, the kerf can be formed obliquely with respect to one side of the panel. If the kerf is formed obliquely, when the groove for inserting and holding the Thomson blade is formed by any groove processing means such as laser beam, water jet, knife cutter, yarn saw, etc., make contact with the kerf at an angle. Therefore, the intersection with the groove processing means for driving the long side and the short side of the panel as the X axis and the Y axis is approximately one place. Therefore, the groove for holding the Thomson blade is formed more accurately.

  If the transport section is sized so that the panel can be transported in both the vertical and horizontal directions, it is possible to provide vertical and horizontal grid-like kerfs in the panel. If the grid-shaped cut grooves are provided, it is possible to more effectively prevent the panel from warping or twisting.

  By making the blade edge of the second blade portion sharper than the blade edge of the first blade portion, the groove having the second depth can be formed at an acute angle, and the effect of preventing panel breakage is improved.

  Even if the kerf is formed so as to be inclined with respect to the panel surface at an angle, the kerf is formed parallel to the long and short sides of the panel. Since the groove of the Thomson blade comes into contact with an angle, the groove for holding the Thomson blade is formed more accurately.

  These and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

FIG. 1 is a schematic plan view of a panel processing apparatus 1 according to an embodiment of the present invention. FIG. 2 is a schematic front view showing the arrangement of main functions around the transport unit 2 of the processing apparatus 1. FIG. 3 is a schematic right side view showing the arrangement of main functions around the transport unit 2. FIG. 4 is a schematic front view showing the structures of the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c. FIG. 5 is a schematic right side view illustrating the structure of the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c. FIG. 6 is a cross-sectional view of the cutting edges of the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c. FIG. 7 is a cross-sectional view of the panel 8 after the two thin plates 91 are bonded together in the vertical direction. FIG. 8 is a drawing-substituting photograph showing the structures of the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c in the embodiment. FIG. 9 is a view showing the panel 8 in which grooves are formed in a lattice shape in both the vertical and horizontal directions. FIG. 10 is a schematic plan view when the oblique guide portion 21 is provided in the transport portion 2. FIG. 11 is a plan view in the case where diagonal grooves are formed in a lattice shape. FIG. 12 is a plan view for explaining the effect when the cut grooves are formed obliquely. FIG. 13 is a plan view for explaining the effect when the cut grooves are formed obliquely. FIG. 14 is a schematic cross-sectional view of a conventional plywood 90 with a kerf used for a template. FIG. 15 is a schematic right side view in the case where the rotation axis of the blade portion is arranged obliquely at an angle. FIG. 16 is a perspective view of the panel 8 showing the grooves 40 and 50 cut obliquely.

  FIG. 1 is a schematic plan view of a panel processing apparatus (hereinafter referred to as a processing apparatus) 1 according to an embodiment of the present invention. FIG. 2 is a schematic front view showing the arrangement of main functions around the transport unit 2 of the processing apparatus 1. FIG. 3 is a schematic right side view showing the arrangement of main functions around the transport unit 2. Hereinafter, the configuration of the processing apparatus 1 will be described with reference to FIGS. The processing apparatus 1 includes a transport unit 2 including roller units 2a to 2e, conveyor units 3a and 3b, first to third front surface blade units 4a to 4c, and first to third back surface blade units 5a to 5c. And adjustment units 6 and 7. In addition, the number of the blade parts illustrated is only an example.

  As shown in FIG. 2, the pair of roller portions 2a, 2c, and 2e rotate in opposite directions around the rotation axis. The roller part 2b rotates in the direction opposite to the rotation direction of the first to third surface blade parts 4a to 4c. The roller portion 2d rotates in the direction opposite to the rotation direction of the first to third back blade portions 5a to 5c. Accordingly, the transport unit 2 can transport the panel 8 while sandwiching the panel 8 and rotating the blade to form a kerf. In addition, about the mechanism which conveys the panel 8, such as a structure of a roller part etc., it is not limited to the mechanism disclosed by this embodiment, All the known mechanisms can be used.

  The 1st-3rd surface blade parts 4a-4c rotate centering around a rotating shaft, respectively, and form a cut groove in the surface (upper surface) of the panel 8 conveyed by the conveyance part 2. FIG. The 1st-3rd back surface blade parts 5a-5c each rotate centering around a rotating shaft, and form a cut groove in the back surface (lower surface) of the panel 8 conveyed by the conveyance part 2. FIG. In the present embodiment, both the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c are formed in order to simultaneously form kerfs on the front surface and the back surface of the panel 8. It was decided to use. However, in the present invention, since a groove may be formed only on either the front surface or the back surface, the first to third surface blade portions 4a to 4c or the first to third back surfaces may be formed. Either one of the blade portions 5a to 5c may not be a component, or only one of the blades forms a cut by adjusting the height of the blade using the adjusting portions 6 and 7 described later. You may make it do.

  As shown in FIG. 1, the user places the panel 8 on the conveyor unit 3 a and pushes the panel 8 toward the transport unit 2. As shown in FIG. 2, the panel 8 sandwiched between the pair of roller portions 2a advances forward, and is first sandwiched between the first surface blade portion 4a and the roller portion 2b. As a result, a kerf formed by the first surface blade portion 4 a is formed on the surface of the panel 8. Next, the panel 8 is sandwiched between the second surface blade portion 4b and the roller portion 2b. The 2nd surface blade part 4b is arrange | positioned so that it may enter into the groove | channel formed by the 1st surface blade part 4a. This point will be described with reference to FIGS.

  FIG. 4 is a schematic front view showing the structures of the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c. FIG. 5 is a schematic right side view illustrating the structure of the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c. As shown in FIG. 5, the blade edge of the first surface blade portion 4a and the blade edge of the second surface blade portion 4b are arranged so as to be in a straight line. Therefore, the cutting edge of the second surface blade portion 4b can be cut deeper by making the cutting edge enter the groove formed by the first surface blade portion 4a. As described in the partially enlarged view shown in FIG. 4, a cut groove is formed in the panel 8 to the first depth a by the first surface blade portion 4a. Next, the second surface blade 4b is further cut to the second depth b.

  After being cut by the second surface blade portion 4b, the panel 8 advances to the third surface blade portion 4c. The blade edge of the third surface blade portion 4c is arranged so as to be aligned with the blade edge of the first surface blade portion 4a in the same manner as the second surface blade portion 4b. Therefore, the 3rd surface blade part 4c can penetrate further into the cut groove formed by the 1st and 2nd surface blade parts 4a and 4b, and can cut a cut groove one step deeper. As described in the partially enlarged view shown in FIG. 4, the third surface blade portion 4c is further cut to the third depth c. In this way, while the panel 8 moves forward, a plurality of kerfs are continuously formed in a straight line on the surface of the panel 8 by the first to third surface blade portions 4a to 4c simultaneously. become. Note that the depth of the cut is not limited to the illustrated example.

  Next, the panel 8 moves forward between the pair of roller portions 2c. A kerf is formed on the back surface of the panel 8 to the first depth a between the first back blade portion 5a and the roller portion 2d. Similar to the front surface blade portion, as shown in FIGS. 4 and 5, the blade edge of the first back surface blade portion 5a and the blade edge of the second back surface blade portion 5b are arranged so as to be in a straight line. Therefore, the cutting edge of the second back surface blade portion 5b further enters the kerf formed by the first back surface blade portion 5a, and is further cut to the second depth b. In the same manner, the kerf is further cut to the third depth c by the third back surface blade portion 5c. In this way, while the panel 8 moves forward, the first to third back blade portions 5a to 5c continuously form a plurality of kerfs continuously on the back surface of the panel 8 in a straight line. become. Finally, the panel 8 is sent out to the conveyor part 3b side by the pair of roller parts 2e.

  FIG. 6 is a cross-sectional view of the cutting edges of the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c. As shown in FIG. 6, the blade tips are sharp and sharp in the order of the third surface blade portion 4c, the second surface blade portion 4b, and the first surface blade portion 4a. In addition, the blade tip is sharp and sharp in the order of the third back blade portion 5c, the second back blade portion 5b, and the first back blade portion 5a. In this way, by sharpening the cutting edges of the second surface blade portion 4b, the third surface blade portion 4c, the second back surface blade portion 5b, and the third back surface blade portion 5c that must be cut deeply. A deep kerf can be formed without increasing the width of the kerf. FIG. 7 is a cross-sectional view of the panel 8 after the two thin plates 91 are bonded together in the vertical direction. As shown in FIG. 7, the first to third front blade portions 4 a to 4 c and the first to third back blade portions 5 a to 5 c are stepped deeper than the cross section of FIG. 14. It can be seen that the kerfs 40 and 50 are cut deeply while minimizing the spread of the width. The member to be bonded to the panel 8 is not particularly limited, such as a thin veneer, a plywood, a resin-impregnated paper, a resin sheet, other sheets, or any other surface finishing material, and other members. The thin plate illustrated in FIG. It is not limited to 91. FIG. 8 is a drawing-substituting photograph showing the structures of the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c in the embodiment.

  As in this embodiment, by gradually cutting and deepening the kerf without using a thick blade, the width of the kerf is minimized, and by making the kerf deeper, Fibers and the like can be cut off, and panel warping and twisting can be prevented while suppressing breakage.

  The depth of the kerf depends on the thickness, tree species, material, and use of the panel 8. Therefore, the processing apparatus 1 has the adjustment parts 6 and 7 which can adjust the height of the 2nd and 3rd surface blade parts 4b and 4c and the 2nd and 3rd back surface blade parts 5b and 5c. The height of each blade can be finely adjusted by loosening or tightening the adjusting nuts 6a, 6b, 7a, 7b. Moreover, although illustration is abbreviate | omitted, you may provide the adjustment part which can adjust height also about the 1st surface blade part 4a and the 1st back surface blade part 5a. As described above, at least one of the first to third front surface blade portions 4a to 4c and the first to third back surface blade portions 5a to 5c can be adjusted in height so that the depth of cutting can be adjusted. It should be. Since any known mechanism for adjusting the height can be used, any further detailed description is omitted.

  The conveyance unit 2 has such a size that the panel can be conveyed in the vertical direction and can be conveyed in the horizontal direction. Therefore, first, after forming a kerf in the vertical direction, the panel can be rotated to form a kerf in the lateral direction so as to be orthogonal to the previously formed kerf. FIG. 9 is a view showing the panel 8 in which grooves are formed in a lattice shape in both the vertical and horizontal directions. As shown in FIG. 9, if the processing apparatus 1 is used, it is possible to form lattice-shaped kerfs 40 and 50 in both the vertical and horizontal directions on the front and back surfaces.

  A panel used for a template such as a die board is completed by sticking an arbitrary member to the surface on which the kerf is formed on the panel 8 having the kerf on the front surface and / or the back surface.

  In the present invention, it is only necessary that kerfs are formed on the front surface and / or the back surface. Moreover, in the said description, although the front-surface blade part and the back surface blade part were demonstrated separately, it is not necessary to distinguish a front surface and a back surface since the cut groove should just be formed in either one surface. Therefore, the first to third front surface blade portions and the first to third back surface blade portions are hereinafter collectively referred to as first to third blade portions, and a modified example of this embodiment will be described.

  In the said embodiment, a 1st blade part forms a kerf to the 1st depth a, and the 2nd blade part cuts the said kerf to the 2nd depth b deeper than the 1st depth a. Further, the cut groove is further cut to the third depth c where the third blade portion is deeper than the second depth b. That is, the depth increases in the order of c, b, and a. However, the third blade may not be used depending on usage. That is, after the first blade portion has formed the kerf to the first depth a, the second blade portion may only need to further cut the kerf to the second depth b. When the third blade portion is not used, the adjustment nuts 6b and 7b of the adjustment portions 6 and 7 are used so that the third blade portion does not contact the panel or the cut groove is not further deeply cut. Adjust to the height of. Of course, if the third blade portion is not always used, the third blade portion itself may be excluded from the configuration of the processing apparatus 1. That is, the third blade portion is not essential as a component of the present invention.

  In addition, as shown in FIG. 9, when the cut grooves are formed in a lattice shape in both the vertical and horizontal directions on the front surface and / or back surface of the panel 8, only the first blade portion is used, and the second and second In some cases, the three blade portions may not be used. If the kerfs are formed in a lattice shape, the number of kerfs increases, so that warping, twisting, and the like may be effectively prevented without performing stepwise grooving. In such a case, the heights of the second and third blade portions may be adjusted by the adjusting portions 6 and 7 so as not to further cut the kerf formed by the first blade portion. Of course, if the second and third blade portions are not always used, the second and third blade portions themselves may be excluded from the configuration of the processing apparatus 1. Thus, depending on the case, the 2nd and 3rd blade part is not essential as a component of the present invention.

  FIG. 10 is a schematic plan view when the oblique guide portion 21 is provided in the transport portion 2. The oblique guide portion 21 is a convex guide provided so that the panel 8 can be conveyed at an oblique angle with respect to the rotation axis of the first blade portions 4a and 5a. If one side of the panel 8 is applied along the oblique guide portion 21 and the panel 8 is pushed forward, the kerf is formed in an oblique direction with respect to one side of the panel 8. FIG. 11 is a plan view in the case where diagonal grooves are formed in a lattice shape. The kerf 40 is a front kerf, and the kerf 50 is a rear kerf. A panel that can be used as a template is manufactured by attaching an arbitrary member to the surface on which the cut groove is formed on the panel 8 processed in this way. In addition, as long as the panel 8 can be pushed forward in an oblique direction, the conveyance unit 2 may convey the panel 8 by a structure other than the oblique guide unit 21.

  12 and 13 are plan views for explaining the effect when the cut grooves are formed obliquely. In FIG. 12 and FIG. 13, the description of the pasted members is omitted for the sake of clarity. FIG. 12 is a diagram illustrating an example when the Thomson blade 60 is attached to the panel 8 in which the kerf is formed as illustrated in FIG. 9 so as to be parallel to one side of the panel 8. FIG. 13 is a view showing an example when the Thomson blade 60 is attached to the panel 8 in which cut grooves are formed obliquely as shown in FIG. As shown in FIG. 12, when the Thomson blade 60 is disposed on the kerf so as to be parallel to one side of the panel 8, the Thomson blade 60 may be inserted into the kerf and cannot be stably held. On the other hand, if the kerf is formed obliquely as shown in FIG. 13, when the groove for inserting and holding the Thomson blade is formed by any grooving means such as a laser beam, a water jet, a knife cutter, and a yarn saw, Since the contact can be made with an angle, the intersection with the groove processing means for driving the long side and the short side of the panel as the X axis and the Y axis is substantially one place. Therefore, the groove for holding the Thomson blade is formed more accurately.

  In addition, as shown in FIG. 11, when the cut groove is formed obliquely on the front surface and / or the back surface of the panel 8, the cut groove is not limited to the lattice shape. In addition, when the kerf is formed obliquely, only the first blade part may be used, and the second and third blade parts may not be used. In such a case, the heights of the second and third blade portions may be adjusted by the adjusting portions 6 and 7, so that the cut groove formed by the first blade portion may not be further cut. The second and third blade portions themselves may be excluded from the configuration.

  As other modifications, the following embodiments are also conceivable. For example, the rotation axes of the first to third blade portions 4a to 4c and / or 5a to 5c shown in FIG. 5 are inclined obliquely upward or downward with respect to the conveyance surface of the panel as shown in FIG. The rotation axis is shifted so as to have it. If the rotational axis is arranged so as to be shifted upward or downward as described above, the first to third blade portions 4a to 4c and / or 5a to 5c are directed to the panel surface (referred to as the upper surface or the lower surface of the panel). Then, it enters diagonally and forms a kerf. FIGS. 16A to 16D are perspective views showing an example of the panel 8 showing the grooves 40 and 50 cut obliquely. In addition, if only the first blade portion is used as the blade portion to be used, it is possible to form a cut groove that enters obliquely. Of course, the kerf may be made deeper by using the second and third blade portions. Note that, as in all the examples shown in the above embodiment, the kerf may be formed only on the front surface, only on the back surface, or may be formed in a lattice shape, or formed obliquely with respect to the sides of the panel 8. The angle of inclination of the kerf is not limited to the illustrated example. A panel used for a formwork or the like is provided in the same manner as in the above-described embodiment by attaching an arbitrary member to such a panel 8. Thus, even if the kerf is formed so as to be parallel to the long side and the short side of the panel 8 by inclining the kerf obliquely with respect to the panel surface, Since the groove of the Thomson blade is in contact with the groove with an angle, the groove for holding the Thomson blade is more accurately formed.

  Although the present invention has been described in detail above, the above description is merely illustrative of the present invention in all respects and is not intended to limit the scope thereof. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention.

  The present invention is a panel manufacturing apparatus, a panel manufacturing method, and a panel, and can be used industrially.

DESCRIPTION OF SYMBOLS 1 Panel processing apparatus 2 Conveying part 2a-2e Roller part 3a, 3b Conveyor part 4a-4c 1st-3rd surface blade part 5a-5c 1st-3rd back surface blade part 6,7 Adjustment part 6a, 6b, 7a, 7b Adjustment nut 8 Panel 40, 50 Cut groove 21 Diagonal guide 60 Thomson blade

Claims (10)

A processing device for forming kerfs in a panel,
A transport section for transporting the panel;
A first blade portion that forms the kerf to the first depth while rotating from the front surface and / or the back surface side of the panel that is transported by the transport portion;
A second blade portion that further cuts the kerf to a second depth deeper than the first depth while rotating so as to enter the kerf formed by the first blade portion. A panel processing device.   After the cutting by the second blade portion, a third blade portion is provided which further enters the kerf and further cuts the kerf to a third depth deeper than the second depth while rotating. The panel processing apparatus according to claim 1, wherein: The first blade portion is
A first surface blade portion that forms the kerf on the surface of the panel;
Including a first back edge portion that forms the kerf on the back surface of the panel;
The second blade portion is
A second surface blade portion for forming the kerf on the surface of the panel;
Including a second back edge portion that forms the kerf on the back surface of the panel,
The third blade portion is
A third surface blade portion for forming the kerf on the surface of the panel;
The panel processing apparatus according to claim 2, further comprising a third back edge portion that forms the cut groove on the back surface of the panel.   The panel processing apparatus according to claim 2, wherein the cutting depth of at least one of the first to third blade portions can be adjusted.   The panel processing apparatus according to claim 1, wherein the transport unit is capable of transporting the panel at an oblique angle with respect to a rotation axis of the first blade unit. .   The panel processing apparatus according to claim 1, wherein the transport unit has a size capable of transporting the panel in both vertical and horizontal directions.   The panel processing apparatus according to claim 1, wherein the second blade portion has a sharper blade edge than the first blade portion.   The panel processing apparatus according to claim 1, wherein the first blade portion is cut obliquely with respect to the panel surface to form a cut groove. A manufacturing method for manufacturing a panel in which a kerf is formed,
While conveying the panel, forming the kerf from the front and / or back side of the panel to the first depth by the rotating first blade part,
The kerf is further cut into the kerf formed by the first blade part, and the kerf is further cut to a second depth deeper than the first depth by the rotating second blade part. A panel manufacturing method characterized by manufacturing a panel on which is formed. A panel having a plurality of grooves on the front surface and / or the back surface, and a member attached to the surface on which the grooves are formed,
Each of the kerfs is cut to the first depth by the first blade portion of the panel processing apparatus that forms the kerfs while rotating, and then enters the kerf formed by the first blade portion. The panel is formed by being cut to a second depth that is deeper than the first depth by the second blade portion of the panel processing apparatus that forms a kerf while rotating as described above. .