WO2022153651A1 - スカーフ面加工装置 - Google Patents
スカーフ面加工装置 Download PDFInfo
- Publication number
- WO2022153651A1 WO2022153651A1 PCT/JP2021/041070 JP2021041070W WO2022153651A1 WO 2022153651 A1 WO2022153651 A1 WO 2022153651A1 JP 2021041070 W JP2021041070 W JP 2021041070W WO 2022153651 A1 WO2022153651 A1 WO 2022153651A1
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- WO
- WIPO (PCT)
- Prior art keywords
- scarf
- plate material
- cutting blade
- scarf surface
- veneer
- Prior art date
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- 238000003754 machining Methods 0.000 title claims description 8
- 238000005520 cutting process Methods 0.000 claims description 114
- 239000000463 material Substances 0.000 claims description 89
- 239000000835 fiber Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 15
- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 11
- 238000003672 processing method Methods 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 230000035876 healing Effects 0.000 abstract description 22
- 239000000853 adhesive Substances 0.000 abstract description 20
- 230000001070 adhesive effect Effects 0.000 abstract description 20
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000003825 pressing Methods 0.000 description 24
- 230000000694 effects Effects 0.000 description 11
- 238000011144 upstream manufacturing Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 9
- 238000005304 joining Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 235000005282 vitamin D3 Nutrition 0.000 description 1
- 239000011647 vitamin D3 Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D1/00—Joining wood veneer with any material; Forming articles thereby; Preparatory processing of surfaces to be joined, e.g. scoring
- B27D1/10—Butting blanks of veneer; Joining same along edges; Preparatory processing of edges, e.g. cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
- B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
- B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
- B27F1/02—Making tongues or grooves, of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
- B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
- B27F1/02—Making tongues or grooves, of indefinite length
- B27F1/06—Making tongues or grooves, of indefinite length simultaneously along opposite edges of a board
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
- B27M3/0026—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by oblong elements connected laterally
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27D—WORKING VENEER OR PLYWOOD
- B27D5/00—Other working of veneer or plywood specially adapted to veneer or plywood
- B27D5/006—Trimming, chamfering or bevelling edgings, e.g. lists
Definitions
- the present invention relates to a scarf surface processing device for processing a scarf surface at an end portion of the plate material extending in a direction intersecting the fiber direction of the wood plate material.
- Patent Document 1 Japanese Unexamined Patent Publication No. 2000-804 (Patent Document 1) describes a scarf surface processing device that processes a scarf surface with a circular saw at the end of the plate material extending in a direction intersecting the fiber direction of the wood plate material. Has been done.
- the circular saw has a downward inclination toward the processing progress direction of the scarf surface (hereinafter, referred to as "healing").
- the larger the downward inclination angle of the circular saw hereinafter referred to as "healing angle"
- the more the cutting edge of the circular saw whose scarf surface is machined recontacts the scarf surface after processing hereinafter, “twice”. "Shaving”
- the scarf surface becomes an arc concave surface.
- the larger the healing angle the larger the curvature of the arc concave surface. If the curvature of the arc concave surface is too large, when the scarf surfaces are joined to each other in a subsequent process, the scarf surfaces may partially come into contact with each other, and good joining may not be obtained.
- the arc concave surface having an appropriate curvature can hold the adhesive (pocket effect), it may be preferable that the scarf surface has an appropriate arc concave surface in terms of good joining between the scarf surfaces. be.
- the present invention has been made in view of the above, and one of the objects of the present invention is to provide a technique that contributes to both prevention of double shaving and securing of a scarf surface having an appropriate arc surface.
- the scarf surface processing apparatus of the present invention has adopted the following means in order to achieve the above-mentioned object.
- a scarf surface processing device for processing a scarf surface is configured at an end portion of the plate material extending in a direction intersecting the fiber direction of the wood plate material.
- the scarf surface processing device includes a holding portion, a processing portion, a support portion, and a driving portion.
- the holding portion can hold the plate material with at least the end portion of the plate material protruding.
- the machined portion includes a motor having a rotating shaft and a disk-shaped cutting blade having a plurality of blades and connected to the rotating shaft.
- the processed portion is arranged in a positional relationship in which the projection of the end portion of the plate material and the projection of the cutting blade intersect on the virtual projection surface when viewed from one side in the extending direction of the end portion of the plate material.
- the support portion has a state in which the cutting blade is tilted at a first inclination angle with respect to the plate material so that the scarf surface has a desired scarf ratio, and the cutting blade has a downward inclination toward the machining progress direction of the scarf surface. Supports the machined portion in a state where the second inclination angle is tilted with respect to the plate material.
- the drive unit is mechanically connected to the holding portion or the supporting portion so that the holding portion or the supporting portion can move relative to the supporting portion or the holding portion along the extending direction of the end portion of the plate material.
- the second inclination angle is the relative positional relationship between the center line of the rotation axis of the cutting blade and the scarf surface, the arrow height of the scarf surface which is an arc concave surface, the scarf ratio, the diameter of the cutting blade, and the plate thickness of the plate material.
- the "scarf ratio" in the present invention is the length of the projection of the scarf surface on the virtual projection surface when the plate material is viewed from one side in the plate thickness direction, and the plate thickness in the direction along the fiber direction.
- the term "connected to the rotating shaft” in the present invention preferably includes a mode in which the cutting blade is directly connected to the rotating shaft and a mode in which the cutting blade is indirectly connected.
- a mode in which the cutting blade is indirectly connected to the rotating shaft for example, a mode in which the cutting blade is connected to the rotating shaft via a reduction gear can be considered.
- the "processing progress direction" in the present invention corresponds to the direction intersecting the fiber direction of the plate material, that is, the extending direction of the end portion of the plate material, and the direction in which the processing of the scarf surface proceeds. do.
- the cutting blade since the cutting blade has a downward inclination of a second inclination angle toward the processing progress direction of the scarf surface, the cutting edge with the machined scarf surface comes into contact with the machined scarf surface again. It can be prevented satisfactorily. Further, when the scarf surface is machined, the cutting force of the cutting blade also acts in the direction of pressing the plate material in the plate thickness direction, so that it is possible to satisfactorily suppress the warpage of the plate material and the violence caused by waviness.
- the second inclination angle is the relative positional relationship between the center line of the rotation axis of the cutting blade and the scarf surface, the arrow height of the scarf surface which is an arc concave surface, the scarf ratio, the diameter of the cutting blade, and the plate thickness of the plate material. Since it has a value calculated based on, the scarf surface can be processed into a desired arc concave surface. As a result, it is possible to suppress an increase in the height of the arrow on the scarf surface, which is an arc concave surface, and it is possible to process the scarf surface into an appropriate arc concave surface.
- the processing portion is arranged so that the center line of the rotation axis of the cutting blade passes through the center of the arc length of the scarf surface.
- the second tilt angle is ⁇ 2
- the second tilt angle is ⁇ 2
- the desired arrow height of the scarf surface is h
- the desired scarf ratio of the scarf surface is i
- the desired diameter of the cutting blade is R
- the desired plate of the plate material is t.
- the "center of the arc length" in the present invention typically corresponds to the center of the arc length of the scarf surface, but preferably includes the approximately center of the arc length of the projection of the scarf surface. do. (Number 1)
- the machined portion is arranged so that the center line of the rotation axis of the cutting blade passes through approximately the center of the arc length of the scarf surface, the plate material, which is the component force of the cutting force of the cutting blade, is pressed in the plate thickness direction. A force can be applied approximately in the center of the arc length of the scarf surface.
- the direction of action of the cutting force of the cutting blade (direction of passage of the blade) and the fiber direction of the plate material can be substantially the same.
- the scarf surface is machined, it is possible to suppress the action of the cutting force in the direction intersecting the fiber direction, so that it is possible to satisfactorily suppress the scarf surface from being damaged in the direction intersecting the fiber direction.
- the processing portion is arranged so that the center line of the rotation axis of the cutting blade passes through the tip of the scarf surface.
- the second tilt angle is ⁇ 2
- the second tilt angle is ⁇ 2
- the desired arrow height of the scarf surface is h 1
- the desired scarf ratio of the scarf surface is i
- the desired diameter of the cutting blade is R
- the desired plate material is t.
- the "tip of the scarf surface" in the present invention is typically the direction along the fiber direction of the projection of the scarf surface on the virtual projection surface when viewed from one side in the plate thickness direction of the plate material. The end corresponds to this. (Number 2)
- the machined portion is arranged so that the projection of the center line of the rotation axis of the cutting blade passes through the tip of the scarf surface, the force that presses the plate material, which is the component of the cutting force of the cutting blade, in the plate thickness direction is applied. , It can act on the tip of the scarf surface, which is the thinnest and most easily chipped.
- the fiber direction of the plate material and the action direction of the cutting force of the cutting blade (the passing direction of the blade) can be substantially matched.
- the tip of the scarf surface which is the thinnest, it is possible to satisfactorily suppress the action of the cutting force in the direction intersecting the fiber direction, so that the tip of the scarf surface is damaged in the direction intersecting the fiber direction. It can be suppressed well.
- the plurality of blades are all flat blades.
- the component force of the cutting force from all the blades can be applied in the direction of pressing the plate material. As a result, it is possible to better suppress the violence caused by the warp or waviness of the plate material. As a result, a better scarf surface can be obtained.
- the cutting tool has a first surface facing the side on which the plate material is arranged and a second surface facing the direction opposite to the first surface. is doing.
- the scarf surface processing device further includes a first reinforcing disk arranged so as to abut the first surface.
- the "side on which the plate material is arranged" in the present invention is defined as the side on which the plate material is arranged when the scarf surface is machined by the cutting tool.
- the cutting blade is arranged so as to have a downward inclination toward the machining progress direction of the scarf surface, it is possible to improve the rigidity against the bending force acting on the cutting blade.
- the cutting blade since the cutting blade has a downward inclination toward the processing progress direction of the scarf surface, it is possible to prevent the first reinforcing disk from coming into contact with the plate material (scarf surface).
- a second reinforcing disk is further provided so as to abut on the second surface.
- the rigidity against the bending force acting on the cutting tool can be further improved.
- a pressing portion arranged on the upstream side of the scarf surface in the machining progress direction of the cutting blade and placed in the vicinity of the cutting blade can be pressed so that the plate material can be pressed. Further prepared.
- the pressing portion has a shape capable of line contact with the plate material. Further, the pressing portion is arranged so that the contact direction with the plate material is orthogonal to the processing direction.
- the plate material when processing the scarf surface, when the support portion and the holding portion are relatively moved, the plate material is suppressed immediately before the scarf surface is processed, while suppressing the resistance between the pressing member and the plate material. It is possible to satisfactorily suppress the violence caused by warping and waviness. As a result, a better scarf surface can be obtained.
- a scarf surface processing method for processing a scarf surface is configured at an end portion of the plate material extending in a direction intersecting the fiber direction of the wood plate material.
- the scarf surface processing method is (a) holding the plate material in a state where at least the end portion of the plate material is projected, and (b) on a virtual projection surface when viewed from one side in the extending direction of the end portion of the plate material.
- the cutting blades are arranged so that the projection of the end portion of the plate material and the projection of the disc-shaped cutting blade having a plurality of blades on the virtual projection surface intersect with each other.
- the cutting blade Based on the relative positional relationship between the center line of the rotation axis and the scarf surface, the arrow height of the scarf surface that becomes the arc concave surface, the scarf ratio of the scarf surface, the diameter of the cutting blade, and the plate thickness of the plate material, the cutting blade The second inclination angle with respect to the plate material is calculated.
- the cutting tool is tilted at a second tilt angle with respect to the plate material so as to have a tilt.
- the scarf surface is processed on the end portion of the plate material by relatively moving the plate material and the cutting blade along the extending direction of the end portion of the plate material.
- the "scarf ratio” in the present invention is the length of the projection of the scarf surface on the virtual projection surface when the plate material is viewed from one side in the plate thickness direction, and the plate thickness in the direction along the fiber direction. It is defined as the ratio of and.
- the "processing progress direction” in the present invention corresponds to the direction intersecting the fiber direction of the plate material, that is, the extending direction of the end portion of the plate material, and the direction in which the processing of the scarf surface proceeds. do.
- the cutting blade since the cutting blade has a downward inclination of a second inclination angle toward the processing progress direction of the scarf surface, the cutting edge with the machined scarf surface comes into contact with the machined scarf surface again. It can be prevented satisfactorily. Further, when the scarf surface is machined, the cutting force of the cutting blade also acts in the direction of pressing the plate material in the plate thickness direction, so that it is possible to satisfactorily suppress the warpage of the plate material and the violence caused by waviness.
- the second inclination angle is the relative positional relationship between the center line of the rotation axis of the cutting blade and the scarf surface, the arrow height of the scarf surface which is an arc concave surface, the scarf ratio, the diameter of the cutting blade, and the plate thickness of the plate material. Since it has a value calculated based on, the scarf surface can be processed into a desired arc concave surface. As a result, it is possible to suppress an increase in the curvature of the scarf surface, which is an arc concave surface, and to process an appropriate arc concave surface.
- step (b) includes a step of arranging the cutting blade so that the center line of the rotation axis of the cutting blade passes through the center of the arc length of the scarf surface. I'm out.
- step (c) the second inclination angle is ⁇ 2
- the desired arrow height of the scarf surface is h
- the desired scarf ratio of the scarf surface is i
- the desired diameter of the cutting blade is R
- the desired plate thickness of the plate material is a step of calculating the second inclination angle so as to satisfy the following equation when t is.
- the "center of arc length" in the present invention typically corresponds to literally the center of the arc length of the scarf surface, but preferably includes approximately the center of the arc length of the scarf surface. (Number 3)
- the scarf surface becomes an appropriate arc concave surface, that is, partial contact between the scarf surfaces, and an adhesive is applied to the scarf surface.
- the second inclination angle for realizing the holdable arc concave surface can be easily calculated. Since the machined portion is arranged so that the center line of the rotation axis of the cutting blade passes through the center of the arc length of the scarf surface, the force that presses the plate material, which is the component force of the cutting force of the cutting blade, in the plate thickness direction. Can act approximately in the center of the arc length of the scarf surface.
- the direction of action of the cutting force of the cutting blade (direction of passage of the blade) and the fiber direction of the plate material can be substantially the same.
- the scarf surface is machined, it is possible to suppress the action of the cutting force in the direction intersecting the fiber direction, so that it is possible to satisfactorily suppress the scarf surface from being damaged in the direction intersecting the fiber direction.
- FIG. 2 is a view from the direction of arrow W1.
- FIG. 2 is a view which shows the outline of the structure of the drive part 8.
- FIG. 8 is an enlarged perspective view of the main part which shows the main part of the drive part 8 in an enlarged manner.
- It is explanatory drawing which shows the connection relationship between a pair of holding parts 6, 6 and a driving part 8.
- FIG. 7 is a view from the direction of arrow W2.
- FIG. 7 is a view from the direction of arrow W3. It is an external view which shows the appearance of a circular saw 20.
- FIG. 11A is an explanatory view showing a state of joining the scarf surfaces 92a and 92b processed by the scarf surface processing apparatus 1 according to the present embodiment
- FIG. 11B is a conventional scarf surface processing. It is explanatory drawing which shows the state of joining the scarf surfaces 92a, 92b processed by the apparatus. It is an enlarged view which shows the appearance of the scarf surface 92a, 92b enlarged. It is explanatory drawing which shows the relative positional relationship between the projection of a circular saw 20 on a virtual projection plane, and the projection of a veneer 90 on the virtual projection plane when viewed from one side of the transport direction TD of the veneer 90.
- the relative positional relationship between the projection of the circular saw 20 on the virtual projection plane when viewed from one side of the transport direction TD of the veneer 90 and the projection of the veneer 90 on the virtual projection plane is shown. It is explanatory drawing. It is an enlarged view which shows the Z2 part of FIG. 22 enlarged. It is explanatory drawing for finding an angle ⁇ . It is an explanatory diagram for obtaining Yataka h1. It is an enlarged perspective block diagram which shows the outline of the structure of the drive part 8A of the modification.
- FIG. 26 is a view from the direction of arrow W4.
- the scarf surface processing device 1 is configured as an device for processing scarf surfaces 92a and 92b on both ends 90a and 90b of the fiber direction FD of the veneer 90.
- the scarf surface processing device 1 includes a base 2, a frame 4 arranged on the upper part of the base 2, and a pair of holding portions 6, slidably arranged on the frame 4. 6 and the drive units 8, 8, 8, 8 in which the pair of holding portions 6 and 6 are arranged in the frame 4 so as to be relatively movable with respect to the frame 4, and the frame 4 in the longitudinal direction of the frame 4.
- the frame 4 has a long shape in the transport direction TD for transporting the veneer 90.
- a carry-in conveyor 70 is arranged on one end side in the longitudinal direction of the frame 4 (upstream side of the transport direction TD of the single plate 90), and the single plate 90 from the carry-in conveyor 70 can be carried into the scarf surface processing device 1.
- the carry-in roller 70a is arranged.
- a carry-out conveyor 72 is arranged on the other end side of the frame 4 in the longitudinal direction (downstream side of the transport direction TD of the veneer 90), and the veneer 90 is discharged from the scarf surface processing device 1 to the carry-out conveyor 72.
- a possible carry-out roller 72a is arranged.
- the carry-in roller 70a and the carry-out roller 72a are arranged so that the carry-in direction and the carry-out direction of the veneer 90 are substantially orthogonal to the longitudinal direction of the frame 4 (the transport direction TD of the veneer 90).
- the carry-in conveyor 70, the carry-in roller 70a, the carry-out conveyor 72, and the carry-out roller 72a are driven and controlled by a control device.
- the holding portion 6 is connected to a pair of upper and lower holding bars 60, 60 parallel to each other and a pair of upper and lower holding bars 60, 60 via a pair of air cylinders 62a, 62a. It has the main body plates 62 and 62 of the above.
- the holding portion 6 can sandwich the veneer 90 between the pair of upper and lower sandwiching bars 60, 60 by extending the rods (not shown) of the air cylinders 62a, 62a (see FIG. 3).
- the holding portion 6 can release the sandwiching of the veneer 90 sandwiched between the pair of upper and lower sandwiching bars 60, 60 by shortening the rods (not shown) of the air cylinders 62a, 62a.
- the air cylinders 62a and 62a are driven and controlled by a control device.
- the sandwiching bars 60 and 60 sandwich the veneer 90 with both ends 90a and 90b of the veneer 90 protruding.
- the main body plate 62 includes a pair of guide portions 62b and 62b that can be engaged with the guide rail GR, and a fixing portion 62c that can be fixed to the endless belt BELT of the drive portion 8 described later. ,have.
- the main body plate 62 is slidably supported by the frame 4 by engaging the pair of guide portions 62b and 62b with the guide rail GR.
- the fixing portion 62c is fixed to the endless belt BELT by a fastening member such as a bolt (not shown).
- the guide rail GR is arranged on the frame 4 so as to extend in the longitudinal direction of the frame 4.
- the drive unit 8 includes an endless belt BELT rotatably supported by the frame 4 via pulleys P and P, and a gear connected to a rotation shaft (not shown) of one of the pulleys. It includes a mechanism (for example, a speed reducer) RG and a motor M connected to a rotating shaft (not shown) of the gear mechanism RG.
- the endless belt BELT is driven by the motors M, M, M, M and rotates clockwise when one of the pulleys P, P, P, P is viewed from the direction of the arrow Ar in FIG. Rotate clockwise.
- the pair of holding portions 6 and 6 fixed to the endless belts BELT, BELT, BELT, and BELT via the fixing portions 62c, 62c, 62c, and 62c are connected to the transport direction TD of the veneer 90 (see FIG. 1). ) Move to the downstream side. Further, the motors M, M, M, and M are driven to rotate one of the pulleys P, P, P, and P counterclockwise when viewed from the direction of the arrow Ar in FIG. Rotate the belt BELT counterclockwise.
- the pair of holding portions 6 and 6 fixed to the endless belts BELT, BELT, BELT, and BELT via the fixing portions 62c, 62c, 62c, and 62c are connected to the transport direction TD of the veneer 90 (see FIG. 1). ) Move to the upstream side.
- the motors M, M, M, and M are synchronously controlled by the control device. Further, the movement of the pair of holding portions 6 and 6 in the transport direction TD to the upstream side and the downstream side is guided by the guide portions 62b, 62b, 62b and 62b engaged with the guide rails GR, GR, GR and GR. To. As a result, the pair of holding portions 6 and 6 can smoothly move to the upstream side and the downstream side of the transport direction TD.
- the processing unit 10 includes a circular saw 20 and a motor 22 having a rotating shaft 22a connected to the circular saw 20.
- the processed portion 10 is viewed from one side in the longitudinal direction of the frame 4 (one side in the transport direction TD of the veneer 90), that is, the ends 90a and 90b of the veneer 90 are extended.
- the projections of parts 90a and 90b are included inside the projection of the circular saw 20). Both ends 90a and 90b of the veneer 90 are free ends as shown in FIG.
- the circular saw 20 has a through hole 20a through which the rotation shaft 22a of the motor 22 can be inserted at the center, and has a plurality of cutting edges 20b on the outer periphery.
- the cutting blades 20b are all configured as flat blades.
- the circular saw 20 has a reinforcing disk 24 on the back surface 21b, that is, on the side where the motor 22 is arranged.
- the motor 22 is driven and controlled by a control device.
- the circular saw 20 corresponds to the "cutting blade” in the present invention, and the cutting blade 20b is an example of an implementation configuration corresponding to the "blade” in the present invention.
- the back surface 21b corresponds to the "first surface” in the present invention, and the reinforcing disk 24 is an example of an implementation configuration corresponding to the "first reinforcing disk” in the present invention.
- the support portions 12 and 14 have tilt bases 12a and 14a and support bases 12b and 14b for attaching the tilt bases 12a and 14a to the base 2. ..
- the tilting tables 12a and 14a have tilted surfaces 13 and 15 that are tilted by an angle ⁇ 1 with respect to the vertical line VL.
- the support portions 12 and 14 are attached to the base 2 in the direction in which the inclined surfaces 13 and 15 face each other. At this time, the inclined surfaces 13 and 15 are parallel to each other as shown in FIG.
- the inclined surfaces 13 and 15 have arc-shaped elongated holes 13a, 13a, 13a, 13a, 15a, 15a, 15a, 15a, 15a through which bolts BLT can be inserted.
- the machined portion 10 is fixed to the inclined surfaces 13 and 15 by the bolt BLT via the bracket BRKT.
- the processed portion 10 is on the virtual projection surface when viewed from one side of the transport direction TD of the single plate 90 (longitudinal direction of the frame 4, direction orthogonal to the paper surface of FIG. 7).
- the projection of the rotation axis center line CLr of the round saw 20 in FIG. 7 is on the right side (in FIG. 7) toward the downstream side (the back side of the paper surface in FIG. It is supported by the support portions 12 and 14 in a state of being inclined by an angle ⁇ 1 to the right side).
- scarf surfaces 92a and 92b see FIG.
- scarf angle ⁇ 1 an inclination angle ⁇ 1 (hereinafter, also referred to as “scarf angle ⁇ 1 ”) are processed on both end portions 90a and 90b of the veneer 90.
- various tilting tables 12a and 14a having scarf angles ⁇ 1 are prepared, for example, a plurality of tilting tables 12a and 14a having inclined surfaces 13 and 15 having different scarf angles ⁇ 1 every other degree.
- the tilting tables 12a and 14a can be selected so that the desired scarf angle ⁇ 1 is obtained.
- the scarf angle ⁇ 1 is an example of an implementation configuration corresponding to the “first inclination angle” in the present invention.
- the processed portion 10 has a transport direction TD of the single plate 90 (longitudinal direction of the frame 4, left-right direction of FIGS. 8 and 9) and a vertical direction (FIGS. 8 and 9).
- the projection of the rotation axis center line CLr of the round saw 20 on the virtual projection plane when viewed from one side of the direction orthogonal to both directions (vertical direction) (direction orthogonal to the paper surface of FIGS. 8 and 9) is the virtual. It is supported by the support portions 12 and 14 in a state of being inclined by an angle ⁇ 2 toward the upstream side (right side in FIG . 8 and left side in FIG.
- the circular saw 20 tilts downward with respect to the veneer 90 toward the upstream side of the transport direction TD of the veneer 90 at an angle ⁇ 2 (hereinafter, may be referred to as “healing angle ⁇ 2 ”). It can be said that it is supported by the support portions 12 and 14 so as to have.
- the angle ⁇ 2 can be adjusted within the extending direction (circumferential direction) of the elongated holes 13a, 13a, 13a, 13a, 15a, 15a, 15a, 15a.
- the scarf surfaces 92a and 92b processed into both end portions 90a and 90b of the veneer 90 have an arc concave surface 91 as shown in FIGS. 11, 12, and 14.
- the healing angle ⁇ 2 is an example of an implementation configuration corresponding to the “second inclination angle” in the present invention.
- the single plate 90 is cut twice by the circular saw 20 (the cutting edge 20b obtained by processing the scarf surfaces 92a and 92b) is processed. It is possible to satisfactorily prevent the scarf surfaces 92a and 92b from coming into contact with each other again (see FIG. 16).
- the circular saw 20 is subjected to a bending force due to contact with the single plate 90 at a healing angle ⁇ 2 , but since it has a reinforcing disk 24, a decrease in rigidity is suppressed.
- the circular saw 20 has a support portion so that the rotation axis center line CLr passes through the center of the arc length of the arc concave surface 91. It is supported by 12 and 14 (see FIGS. 7 to 9).
- the adjustment for allowing the rotation axis center line CLr of the circular saw 20 to pass through the center of the arc length of the arc concave surface 91 is, for example, the position of the inclined bases 12a, 14a relative to the support bases 12b, 14b in the vertical direction. Can be implemented by changing.
- the adhesive Ad is used as the veneer. Exudation to the surface of 90 can be satisfactorily suppressed. Further, since the scarf surfaces 92a and 92b are also appropriately joined to each other, it is possible to stabilize the surface treatment in the post-process. Further, when the veneers 90 are bonded to each other by using a hot plate press, an appropriate vapor vent hole Sh can be secured, so that the curing of the adhesive Ad can be promoted.
- the veneers 90 are used in the subsequent process.
- the scarf surfaces 92a and 92b are joined together, as shown in FIG. 11B, the scarf surfaces 92a and 92b are partially joined to each other, and good joining of the veneers 90 to each other is realized. Sometimes it is not possible.
- the arrow height h of the arc concave surface 91 is calculated based on the relative positional relationship with the projection of 90. Specifically, the arrow height h of the arc concave surface 91 is calculated using the following equation (8). Hereinafter, the method for deriving the equation (8) will be described.
- the projection of the circular saw 20 on the virtual projection surface when viewed from one side of the transport direction TD (paper direction in FIG. 13) of the veneer 90 is as follows: major axis R and minor axis R. It becomes an ellipse having sin ⁇ 2 .
- the rotation axis center line CLr of the circular saw 20 on the virtual projection surface overlaps with the Y axis (major axis of the ellipse).
- the arrow height h of the arc concave surface 91 is the both ends of the projection of the arc concave surface 91 in the XY coordinate system from the absolute value
- the value is obtained by subtracting the absolute value
- the Y coordinate of the intersection Sc is equal to 1/2 of the minor axis of the ellipse, so that it is ⁇ R / 2 ⁇ sin ⁇ 2 .
- the Y coordinate y1 of the intersection Svc can be obtained by using the following equations (9) to (12), and is as shown in the following equation (13).
- equation (9) is an equation representing an ellipse.
- the equation (10) is an equation representing a line segment Lcv2 that passes through one end P2 of the projection of the arc concave surface 91 on the virtual projection surface and is parallel to the Y axis, and is an equation represented by the following equations (11) and (11). It can be obtained by 12).
- L is the scarf length of the scarf surfaces 92a and 92b, more specifically, the length of the line segment Lcv1 (see FIG. 14).
- the diameter R of the circular saw 20 is a value determined by the equipment requirement
- the plate thickness t of the veneer 90, the scarf ratio i, and the scarf length L are values determined by the product requirement. Therefore, it can be seen that the healing angle ⁇ 2 may be adjusted in order to make the arrow height h of the arc concave surface 91 a desired value. As described above, in the present embodiment, the healing angle ⁇ 2 is adjusted in order to obtain a desired arrow height h.
- the pressing portions 16 and 18 are located on the upstream side (left side in FIG. 16) of the transport direction TD of the veneer 90 with respect to the circular saw 20 and are arranged near the outer periphery of the circular saw 20. ..
- the pressing portions 16 and 18 have a size capable of at least pressing a portion of the end portions 90a and 90b of the veneer 90 that becomes cutting chips 93 that are cut (excluded) by processing the scarf surfaces 92a and 92b. is doing.
- the pressing portions 16 and 18 have inclined surfaces 16a and 18a on a part of the bottom surface, and the curved surface 16b whose surface facing the outer circumference of the circular saw 20 has substantially the same curvature as the circular saw 20. It has 18b.
- the inclined surfaces 16a and 18a have an upward inclination in a direction away from the curved surfaces 16b and 18b. In other words, it can be said that the inclined surfaces 16a and 18a have an upward inclination toward the upstream side (left side in FIG. 16) of the transport direction TD of the veneer 90.
- the pressing portions 16 and 18 press the portion of the veneer 90 immediately before the scarf surfaces 92a and 92b are machined by the circular saw 20, so that the veneer on the veneer is about to be machined. It is possible to suppress the violence caused by the warp of 90 and the wave. As a result, the scarf surfaces 92a and 92b can be made good. Since the pressing portions 16 and 18 have inclined surfaces 16a and 18a, the conveyed single plate 90 can be smoothly received below the pressing portions 16 and 18. Further, since the pressing portions 16 and 18 have curved surfaces 16b and 18b, the veneer 90 can be pressed until just before the circular saw 20, so that the veneer 90 on the verge of processing may be warped or wavy. It can be suppressed better.
- the scarf surface processing device 1 configured in this way, particularly the operation when processing the scarf surfaces 92a and 92b on both end portions 90a and 90b of the veneer 90 will be described.
- the pair of holding portions 6 and 6 are located at the upstream end (one end side in the longitudinal direction of the frame 4) of the veneer 90 in the transport direction TD, as shown in FIG. Have been placed.
- the carry-in conveyor 70 and the carry-in roller 70a are driven and controlled by the control device, and one single plate 90 is formed from the plurality of single plates 90 laminated on the carry-in conveyor 70. It is carried into the scarf surface processing device 1 via the carry-in roller 70a.
- the single plate 90 since the single plate 90 is arranged on the carry-in conveyor 70 so that the fiber direction FD is in the direction along the carry-in direction (almost parallel to the carry-in direction), the single plate 90 has the fiber direction FD as a frame. It is carried into the scarf surface processing device 1 in a posture substantially orthogonal to the longitudinal direction of 4 (the transport direction TD of the single plate 90).
- the control device drives each pair of air cylinders 62a and 62a (see FIG. 2) of the pair of holding portions 6 and 6. ..
- the veneer 90 is sandwiched by each pair of sandwiching bars 60, 60 (see FIGS. 2 and 17).
- the motors M, M, M, M (see FIGS. 5 and 6) of the drive unit 8 are driven and controlled by the control device, so that the endless belts BELT, BELT, BELT, of the drive unit 8 are driven.
- the BELT (see FIGS. 5 and 6) is rotated clockwise when viewed from the direction of the arrow Ar in FIG. As a result, the pair of holding portions 6 and 6 move toward the downstream side in the transport direction TD while sandwiching the veneer 90.
- the veneer 90 passes through the position where the pair of machining portions 10 and 10 are arranged.
- the scarf surfaces 92a and 92b are machined on both ends 90a and 90b of the veneer 90 by the pair of circular saws 20 and 20.
- the scarf surfaces 92a and 92b are processed so as to be substantially parallel to each other.
- the circular saws 20 and 20 are supported by the support portions 12 and 14 with a healing angle ⁇ 2 , that is, the circular saw 20 is upstream of the transport direction TD with respect to the veneer 90. Since it has a downward inclination with an angle ⁇ 2 toward the side, the single plate 90 is cut twice by the circular saw 20 (the cutting edge 20b obtained by processing the scarf surfaces 92a and 92b is the machined scarf surfaces 92a and 92b. (Re-contact with) can be satisfactorily prevented (see FIG. 16).
- the component force Fcp of the cutting force Fc of the circular saw 20 acts in the direction of pressing the veneer 90 in the plate thickness direction, so that the veneer 90 is warped or wavy.
- the rampage of 90 can be suppressed satisfactorily. Since the rotation axis center line CLr of the round saw 20 passes almost at the center (point Sc) of the arc lengths of the scarf surfaces 92a and 92b (the length of the arc connecting the points P1 and P2) (see FIG . 14). ),
- the component Fcp acts on approximately the center (point Sc) of the arc lengths ( the length of the arc connecting the points P1 and P2) of the scarf surfaces 92a and 92b.
- the component force Fcp of the cutting force Fc from all the cutting blades 20b is applied in the direction of pressing the plate thickness of the veneer 90. Can be done. As a result, it is possible to better suppress the violence caused by the warp and waviness of the veneer 90. As a result, better scarf surfaces 92a and 92b can be obtained.
- the cutting force Fc is approximately at the center (point Sc) of the scarf surfaces 92a and 92b in the slope length direction ( direction along the length direction of the arc connecting the points P1 and P2).
- Passing direction of the cutting edge 20b and the fiber direction FD of the single plate 90 can be made the same, so that when the scarf surfaces 92a and 92b are machined, the cutting force Fc becomes the fiber direction FD. It is possible to suppress the action in the intersecting direction. As a result, it is possible to satisfactorily prevent the scarf surfaces 92a and 92b from being damaged in the direction intersecting the fiber direction FD.
- the scarf surfaces 92a and 92b become arc concave surfaces 91 and 91 in the present embodiment.
- the shape of the arc concave surfaces 91, 91, specifically, the size of the arrow heights h, h of the arc concave surfaces 91, 91 greatly affects the quality of the joining of the veneers 90 on the scarf surfaces 92a, 92b.
- the healing angle ⁇ 2 is adjusted so that the desired arrow heights h and h are obtained by using the equation (8), it is possible to prevent the scarf surfaces 92a and 92b from being partially joined to each other.
- the veneer 90 whose scarf surfaces 92a and 92b are machined by the pair of machined portions 10 and 10 is conveyed to the carry-out conveyor 72 arranged on the other end side (downstream side of the transport direction TD) of the frame 4 in the longitudinal direction. Will be done. Then, it is carried out from the scarf surface processing device 1 by the carry-out roller 72a and the carry-out conveyor 72 driven and controlled by the control device, and is conveyed to the subsequent process (see FIG. 20).
- the healing angle ⁇ 2 is adjusted so that the desired arrow heights h and h are obtained, and the scarf surface is formed on the single plate 90 with the healing angle ⁇ 2 .
- the single plate 90 is sharpened twice by the circular saw 20 (the cutting edge 20b obtained by processing the scarf surfaces 92a and 92b comes into contact with the processed scarf surfaces 92a and 92b again). Can be prevented. Since the arrow heights h and h of the arc concave surfaces 91 and 91 can be set to desired values, the scarf surfaces 92a and 92b are adhered between the arc concave surfaces 91 and 91 while suppressing partial joining.
- a space capable of holding the agent Ad well can be secured (pocket effect).
- the veneers 90 are joined to each other on the scarf surfaces 92a and 92b, it is possible to satisfactorily prevent the adhesive Ad from seeping out to the surface of the veneer 90, and the scarf surfaces 92a and 92b are appropriately joined to each other. can do.
- an appropriate steam vent hole Sh can be secured between the joint surfaces, when the veneers 90 are bonded to each other by using a hot plate press, the curing of the adhesive Ad can be promoted. can.
- the circular saw 20 is formed at substantially the center (point Sc) of the arc lengths ( lengths of arcs P1 and P2) of the scarf surfaces 92a and 92b. Since the component force Fcp of the cutting force Fc can act in the direction of pressing the veneer 90 in the plate thickness direction, it is possible to satisfactorily suppress the violence of the veneer 90 due to warpage or waviness of the veneer 90. can.
- the component force Fcp of the cutting force Fc from all the cutting blades 20b is applied in the direction of pressing the veneer 90 in the plate thickness direction. be able to. Further, at approximately the center (point Sc) of the scarf surfaces 92a and 92b in the slope length direction (direction along the arc P 1 P 2 ), the action direction of the cutting force Fc (passing direction of the cutting edge 20b) and the single plate 90. Since the fiber direction FD of the above can be made the same, it is possible to satisfactorily prevent the scarf surfaces 92a and 92b from being damaged in the direction intersecting the fiber direction FD.
- the rotation axis center line CLr of the circular saw 20 passes through approximately the center (point Sc) of the arc lengths ( lengths of arcs P1 and P2) of the scarf surfaces 92a and 92b.
- the rotation axis center line CLr of the circular saw 20 is the tip of the scarf surfaces 92a and 92b (the scarf surface on the virtual projection surface when the veneer 90 is viewed in the plate thickness direction). It may be configured to pass through one end of 92a and 92b in the direction along the fiber direction FD ( point P3 in FIG. 22).
- the ellipse h 1 can be obtained using the system.
- a desired scarf length L length of the line segment Lcv1 when the rotation axis center line CLr of the round saw 20 passes through the tips of the scarf surfaces 92a and 92b (point P1 in FIG. 22). In order to do so, as shown in FIG.
- the round saw 20 is placed from one side of the transport direction TD of the single plate 90 (the direction orthogonal to the paper surface of FIG. 23).
- the projection of the rotation axis center line CLr of the round saw 20 on the virtual projection plane when viewed is on the downstream side of the transport direction TD with respect to the projection of the vertical line VL on the virtual projection plane (the back side of the paper surface in FIG. 23). ) To the left side (left side in FIG. 23) by an angle ( ⁇ 1 - ⁇ ).
- the arrow height h 1 can be calculated by the following equations (14) to (23). Specifically, for the arrow height h 1 of the arc concave surface 91, the angle ⁇ is obtained by using the following equations (15) to (18) and the above-mentioned equation (12), and the following equations (19) to (23) are obtained.
- the equation (15) is an equation for obtaining the angle ⁇ using the inverse sine in the right triangle P 3 P 4 P 6 (see FIG. 25), and can be calculated if h 2 and L are obtained.
- h 2 is the length of the side P 4 P 6 of the right triangle P 3 P 4 P 6 and is the absolute value of the Y coordinate of the point P 6 (equal to the Y coordinate of the point P 3 ) using equation (16). It can be obtained by subtracting the absolute value
- y 4 is the Y coordinate of the intersection P4 of the virtual circle Cv (see FIGS.
- the equation (19) is an equation representing a straight line Lt.
- the equation (20) is an equation for obtaining the X coordinate x 7 of the intersection P7 between the straight line Lt and the ellipse, and is obtained by using the equation (19) and the above-mentioned equation (9) which is an equation of the ellipse. Can be done.
- the equation (22) is an equation for obtaining the y - intercept of the equation (19), that is, the Y coordinate of the point P5, and the equation (20) and the conditional equation (discriminant) in which the straight line Lt is a tangent to the ellipse. It can be obtained by using the equation (21).
- Equation (23) is an equation for obtaining the distance h 3 (the length of the hypotenuse P 7 P 9 of the triangle P 7 P 8 P 9 ) between the Y intercept P 5 of the straight line Lt and the intersection P 3 of the ellipse and the Y axis. Is.
- the healing angle ⁇ 2 is adjusted so as to have a desired arrow height h 1 , and the scarf surfaces 92a and 92b are processed on the veneer 90 with the healing angle ⁇ 2 .
- the same effect as that of the scarf surface processing device 1 according to the present embodiment that is, the veneer 90 is cut twice by the round saw 20 (the cutting edge 20b obtained by processing the scarf surfaces 92a and 92b is the processed scarf). It is possible to secure an effect that can satisfactorily prevent the surfaces 92a and 92b from coming into contact with each other) and a space that can satisfactorily hold the adhesive Ad between the arc concave surfaces 91 and 91 (pocket effect).
- the effect of being able to satisfactorily suppress the adhesive Ad from seeping out to the surface of the veneer 90, and the scarf surfaces 92a and 92b can be appropriately joined to each other. Since it is possible to secure an appropriate steam vent hole Sh between the joint surfaces, it is possible to promote the curing of the adhesive Ad when the veneers 90 are bonded to each other using a hot plate press. It can produce the effect that can be achieved.
- the fiber direction FD of the veneer 90 and the action direction of the cutting force Fc can be substantially matched at the tips of the scarf surfaces 92a and 92b, which are the thinnest and easily chipped. Therefore (see FIG. 21), the resistance during cutting can be reduced. As a result, the tips of the thinnest scarf surfaces 92a and 92b are unlikely to be chipped.
- the pair of processed portions 10 and 10 supported by the support portions 12 and 14 are fixed to the base 2, and the pair of holding portions 6 and 6 are transferred to the veneer 90 in the transport direction TD (longitudinal length of the frame 4). It was moved in the direction), but it is not limited to this.
- the pair of holding portions 6 and 6 are fixed to the base 2 and the frame 4, and the supporting portions 12 and 14 supporting the pair of processed portions 10 and 10 are TD in the transport direction of the veneer 90 (longitudinal direction of the frame 4). It may be configured to move to.
- the drive unit 8 is connected to an endless belt BELT rotatably supported by the frame 4 via pulleys P and P, and a gear mechanism (for example,) connected to a rotation shaft (not shown) of one of the pulleys.
- (Reducer) RG and a motor M connected to a rotating shaft (not shown) of the gear mechanism RG are provided, and by rotating the endless belts BELT, BELT, BELT, BELT, the endless belts BELT, BELT, The pair of holding portions 6 and 6 fixed to the BELT and the BELT are moved in the transport direction TD (longitudinal direction of the frame 4) of the single plate 90, but the present invention is not limited to this.
- the drive unit 8A is connected to a motor M supported by the frame 4 and a gear mechanism (for example, a rotation shaft) of the motor M (not shown).
- a gear mechanism for example, a rotation shaft
- Reducer Reducer
- RG a male screw rod Bm connected to an output shaft (not shown) of the gear mechanism RG
- a female screw body Nf screw-engaged with the male screw rod Bm may be provided.
- the male screw rod Bm is rotatably supported by the frame 4, and the female screw body Nf is fixed to the main body plates 62, 62, 62, 62 of the pair of holding portions 6, 6.
- the motor M is driven to rotate the male screw rod Bm in the forward and reverse directions, so that the pair of holding portions 6 and 6 are conveyed in the transport direction of the veneer 90 via the female screw body Nf. It can be reciprocated in the TD (longitudinal direction of the frame 4).
- the single plate 90 is pinched and released by the pair of upper and lower pinching bars 60, 60 by the air cylinders 62a, 62a, 62a, 62a, 62a, but the present invention is not limited to this.
- a hydraulic cylinder may be used instead of the air cylinders 62a, 62a, 62a, 62a.
- the reinforcing disk 24 is arranged only on the back surface 21b of the circular saw 20, that is, the side on which the motor 22 is arranged, but the surface 21a of the circular saw 20 (see FIGS. 8 and 9), that is, The reinforcing disk 24 may be arranged on the side opposite to the side on which the motor 22 is arranged. According to this configuration, the rigidity against the bending force acting on the circular saw 20 can be further improved.
- the reinforcing disk 24 arranged on the surface 21a of the circular saw 20 corresponds to the "second reinforcing disk" in the present invention, and the surface 21a corresponds to the "second surface” in the present invention. be.
- the present embodiment shows an example of a mode for carrying out the present invention. Therefore, the present invention is not limited to the configuration of the present embodiment.
- the correspondence between each component of the present embodiment and each component of the present invention is shown below.
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Abstract
Description
(数1)
(数2)
(e)板材の端部の延在方向に沿って、板材と切削刃物とを相対移動させることによって、板材の端部に前記スカーフ面を加工する。ここで、本発明における「スカーフ比」とは、板材を板厚方向の一方側から見たときの仮想投影面上におけるスカーフ面の投影のうち繊維方向に沿う方向の長さと、板材の板厚と、の比として規定される。また、本発明における「加工進行方向」とは、板材の繊維方向と交差する方向、即ち、板材の端部の延在方向であって、スカーフ面の加工が進行していく方向がこれに該当する。
(数3)
ここで、Lは、図12に示すように、スカーフ面92a,92bのスカーフ長さ、より具体的には、線分Lcv1(図14参照)の長さである。また、iは、スカーフ面92a,92bのスカーフ比であり、単板90を板厚t方向の一方側から見たときの仮想投影面上におけるスカーフ面92a,92bの投影のうち繊維方向FDに沿う方向の投影長さLsと、板厚tと、の比(i=Ls/t)である。なお、投影長さLsは、スカーフ長さLの二乗から板厚tの二乗を減じた値の平方根(Ls=√(L2-t2))である。
2 基台
4 フレーム
6 保持部(保持部)
8 駆動部(駆動部)
8A 駆動部(駆動部)
10 加工部(加工部)
12 支持部(支持部)
12a 傾斜台
12b 支持台
13 傾斜面
13a 長孔
14 支持部(支持部)
14a 傾斜台
14b 支持台
15 傾斜面
15a 長孔
16 押圧部(押圧部)
16a 傾斜面
16b 曲面
18 押圧部(押圧部)
18a 傾斜面
18b 曲面
20 丸鋸(切削刃物)
20a 貫通孔
20b 切刃(刃)
21a 表面(第2面)
21b 背面(第1面)
22 モータ(モータ)
22a 回転軸(回転軸)
24 補強円板(第1補強円板)
60 挟持バー
62 本体プレート
62a エアシリンダ
62b ガイド部
62c 固定部
70 搬入コンベヤ
70a 搬入ローラ
72 搬出コンベヤ
72a 搬出ローラ
90 単板(板材)
90a 端部(板材の端部)
90b 端部(板材の端部)
91 円弧凹面(円弧凹面)
92a スカーフ面(スカーフ面)
92b スカーフ面(スカーフ面)
GR ガイドレール
BELT 無端状ベルト
P プーリー
RG 歯車機構
M モータ
BRKT ブラケット
BLT ボルト
Bm 雄ネジロッド
Nf 雌ネジ体
h 矢高(矢高)
h1 矢高(矢高)
h2 辺P4P6の長さ
h3 直線LtのY切片P5と交点P3との距離
Ad 接着剤
Sh 蒸気抜き孔
L スカーフ長さ、線分Lcv1の長さ
t 単板の板厚(板材の板厚)
R 丸鋸の直径(切削刃物の直径)
i スカーフ比(スカーフ比)
FD 単板の繊維方向(板材の繊維方向)
TD 単板の搬送方向
VL 鉛直線
θ1 スカーフ角度(第1傾斜角度)
θ2 ヒーリング角度(第2傾斜角度)
CLr 丸鋸の回転軸中心線(切削刃物の回転軸中心線)
Cr 楕円(丸鋸)の中心
P1 円弧凹面の投影の端部
P2 円弧凹面の投影の端部
P3 円弧凹面の投影の端部、楕円とY軸の交点
P4 円弧凹面の投影の端部
P4’ 円弧凹面の投影の端部
P5 直線LtのY切片
P6 直角三角形P3P4P6の直角を構成する点
P7 直線Ltと楕円との交点
P8 点P7を通り線分Lcv1に垂直な直線と線分Lcv1との交点
P9 点P7を通りY軸に平行な直線と線分Lcv1との交点
Lcv1 点P1および点P2を結ぶ線分
Lcv2 点P2を通りY軸に平行な線分
Svc 線分Lcv1とY軸との交点
Ls スカーフ面の投影長さ
Fc 切削力
Fcp 切削力の分力
Lvh 線分Lcv1の垂直二等分線
α 角度
Cv 半径Lの仮想円
Claims (9)
- 木質の板材の繊維方向と交差する方向に延在する前記板材の端部に、スカーフ面を加工するスカーフ面加工装置であって、
少なくとも前記板材の端部を突出させた状態で該板材を保持可能な保持部と、
回転軸を有するモータと、複数の刃を有すると共に前記回転軸に接続された円板状の切削刃物と、を有し、前記板材の端部の延在方向の一方側から見たときの仮想投影面上における前記板材の端部の投影と前記切削刃物の投影とが交差する位置関係で配置された加工部と、
前記スカーフ面が所望のスカーフ比を有するよう前記切削刃物を前記板材に対して第1傾斜角度傾斜させた状態、かつ、前記スカーフ面の加工進行方向に向かって下り傾斜を有するよう前記切削刃物を前記板材に対して第2傾斜角度傾斜させた状態で前記加工部を支持する支持部と、
前記板材の端部の延在方向に沿って前記保持部または前記支持部を該支持部または該保持部に対して相対移動可能に、前記保持部または前記支持部に機械的に接続された駆動部と、
を備え、
前記第2傾斜角度は、前記切削刃物の回転軸中心線と前記スカーフ面との相対位置関係と、円弧凹面となる前記スカーフ面の矢高と、前記スカーフ比と、前記切削刃物の直径と、前記板材の板厚と、に基づいて算出される値を有している
スカーフ面加工装置。 - 前記複数の刃は、全て平刃である
請求項1ないし3のいずれか1項に記載のスカーフ面加工装置。 - 前記切削刃物は、前記板材が配置される側を向く第1面と、該第1面とは反対方向を向く第2面と、を有しており、
前記第1面に当接するよう配置された第1補強円板をさらに備える
請求項1ないし4のいずれか1項に記載のスカーフ面加工装置。 - 前記第2面に当接するよう第2補強円板をさらに備える
請求項5に記載のスカーフ面加工装置。 - 前記板材を押圧可能に、前記切削刃物に関して前記スカーフ面の加工進行方向の上流側であって、該切削刃物の近傍に配置された押圧部をさらに備える
請求項1ないし6のいずれか1項に記載のスカーフ面加工装置。 - 木質の板材の繊維方向と交差する方向に延在する前記板材の端部に、スカーフ面を加工するスカーフ面加工方法であって、
(a)少なくとも前記板材の端部を突出させた状態で該板材を保持し、
(b)前記板材の端部の延在方向の一方側から見たときの仮想投影面上における前記板材の端部の投影と、複数の刃を有する円板状の切削刃物の前記仮想投影面上における投影と、が交差する位置関係となるよう前記切削刃物を配置し、
(c)前記切削刃物の回転軸中心線と前記スカーフ面との相対位置関係と、円弧凹面となる前記スカーフ面の矢高と、前記スカーフ面のスカーフ比と、前記切削刃物の直径と、前記板材の板厚と、に基づいて、前記切削刃物の前記板材に対する第2傾斜角度を算出し、
(d)前記スカーフ面が所望の前記スカーフ比を有するよう前記切削刃物を前記板材に対して第1傾斜角度傾斜させると共に、前記スカーフ面の加工進行方向に向かって下り傾斜を有するよう前記切削刃物を前記板材に対して前記第2傾斜角度傾斜させ、
(e)前記板材の端部の延在方向に沿って、前記板材と前記切削刃物とを相対移動させることによって、前記板材の端部に前記スカーフ面を加工する
スカーフ面加工方法。
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JPH06122101A (ja) * | 1992-10-13 | 1994-05-06 | Minami Kikai Kk | 薄板切削接合装置 |
JP2000000804A (ja) | 1998-06-16 | 2000-01-07 | Meinan Mach Works Inc | 板状体のスカーフ面加工方法及び装置 |
JP4934064B2 (ja) * | 2008-01-21 | 2012-05-16 | 株式会社名南製作所 | 接合単板と基材との接着方法 |
JP5683969B2 (ja) * | 2011-01-07 | 2015-03-11 | 株式会社ウッドワン | スカーフ面加工装置及びスカーフ面加工方法 |
JP6556669B2 (ja) * | 2016-07-04 | 2019-08-07 | 株式会社名南製作所 | 板状部材の加工装置、板状部材の加工システム、および、板状部材の加工方法、並びに、板状部材の接合方法 |
US20190240860A1 (en) * | 2016-07-22 | 2019-08-08 | Hanses Sägewerkstechnik GmbH & Co. KG | Laminated-Veneer-Lumber Product and Method for Producing the Same |
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DE102012104049A1 (de) | 2012-05-09 | 2013-11-28 | Esk Ceramics Gmbh & Co. Kg | Bornitrid-Agglomerate, Verfahren zu deren Herstellung und deren Verwendung |
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JPH06122101A (ja) * | 1992-10-13 | 1994-05-06 | Minami Kikai Kk | 薄板切削接合装置 |
JP2000000804A (ja) | 1998-06-16 | 2000-01-07 | Meinan Mach Works Inc | 板状体のスカーフ面加工方法及び装置 |
JP4275773B2 (ja) * | 1998-06-16 | 2009-06-10 | 株式会社名南製作所 | 板状体のスカーフ面加工方法及び装置 |
JP4934064B2 (ja) * | 2008-01-21 | 2012-05-16 | 株式会社名南製作所 | 接合単板と基材との接着方法 |
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US20190240860A1 (en) * | 2016-07-22 | 2019-08-08 | Hanses Sägewerkstechnik GmbH & Co. KG | Laminated-Veneer-Lumber Product and Method for Producing the Same |
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