JP2011218679A - Method and apparatus for manufacturing of skewing veneer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To efficiently manufacture a skewing veneer in which a direction of fiber is inclined from a usual veneer without cutting aslant to the direction of fiber.SOLUTION: The method of manufacturing the skewing veneer includes: a first step which cuts a wooden veneer in the shape of a strip so that the direction of fiber may turn into a length direction to obtain two or more strip shape plates; a second step which shifts one of adjacent strip shape plates to a length direction; a third step which combines side edges of one and another of the strip shape plates; a fourth step which makes the combined strip shape plates move in a direction which inclines from a length direction of the strip shape plates in a parallel condition; and a fifth step which cuts the strip shape plate which moves in the parallel condition into a predetermined length in a moving direction to form a skewing veneer.

Description

  The present invention is a laminated material obtained by laminating a plurality of single plates, and at least two single plates are in a state where the fiber directions intersect with each other and are inclined with respect to four sides (referred to as a skew state) And a method for producing a single plate (hereinafter referred to as a skewed single plate) whose fiber direction is inclined with respect to the length direction, and a method for producing such a skewed single plate. It relates to a manufacturing apparatus.

  Conventionally, as shown in Patent Document 1, an omnidirectional strong plywood in which wood grains are laminated in a vertical direction, a horizontal direction, a left inclination of 45 degrees or a right inclination of 45 degrees is known as a laminated material as described above. . However, in order to obtain the slanted single plate of 45 ° left slope and 45 ° right slope necessary for manufacturing such a laminated material, the fiber direction is inclined within the range of the single plate of horizontal grain. Therefore, it was necessary to cut it out, and it was a wasteful work.

  Therefore, as shown in Patent Document 2, by cutting the veneer veneer into a substantially ladder-shaped square piece and a substantially right-angled triangular piece, the occurrence of cuts is suppressed, and the raw material is wasted. It has been proposed to obtain a single piece of diagonal wood without having to do so.

JP-A-11-77609 Utility Model Registration No. 3136619

  However, in the conventional manufacturing method of a skewed single plate, in either of the above Patent Documents 1 and 2, a rectangular single plate is cut obliquely with respect to the fiber direction to make triangular or square plate pieces, The skewed single plate is formed by joining the side edges of the plate pieces. For this reason, as shown in FIG. 6, it becomes a form in which the cut b is entered with respect to the wood grain (fiber direction) a of the skewed single plate and the wood grain a is cut, which is problematic in terms of appearance and strength. .

  Further, when a laminated material is manufactured with a conventional skew single plate, the two layers of skew single plates are stacked so that their fiber directions are inclined in opposite directions. The upper skewed single plate must be reversed and overlapped with the plate, resulting in a large plywood manufacturing apparatus and low manufacturing efficiency.

  The present invention provides a manufacturing method and apparatus capable of efficiently manufacturing a skewed single plate having an inclined fiber direction without cutting obliquely with respect to the fiber direction from a normal single plate, and the method thereof. An object is to provide a skewed veneer to be manufactured.

  The manufacturing method of the skew single plate of the present invention includes the first step of obtaining a plurality of strip-shaped plates by cutting a wooden single plate into strips so that the fiber direction thereof is the length direction, and adjacent strip-shaped plates. A second step of shifting one of the strip-shaped plates in the length direction, a third step of combining one side of the adjacent strip-shaped plate and the other side edge, and the length of the strip-shaped plate in a state where the combined strip-shaped plates are in parallel. A fourth step of moving in a direction inclined from the direction, and a fifth step of cutting the strip-shaped plate moving in the parallel state into a predetermined length in the moving direction to form a skewed single plate. (First invention).

  According to the method of the present invention, a wooden veneer that is a raw material is cut into a strip shape so that the fiber direction is the length direction (first step). In the plurality of strip-shaped plates obtained thereby, one of the adjacent strip-shaped plates is sequentially shifted in the length direction (second step). Then, one side and the other side edge of the adjacent strip-shaped plates are combined (third step). The coupled strip-shaped plates move in a direction inclined from the length direction in a parallel state (fourth step). The strip-shaped plates in parallel are cut into a predetermined length in the moving direction, thereby forming a skewed single plate having a predetermined length (fifth step).

  The skewed single plate thus formed is cut between both ends of the plurality of strip-shaped plates that are coupled to each other during the movement in the fourth step, so that the length between the two side ends with respect to the moving direction is reduced. It can be formed in a shape (rectangular shape) with the same length (this is the horizontal width of the skew single plate).

  Alternatively, after forming the laminated material by laminating at least two skew single plates cut to a predetermined length in the fifth step so that the fiber directions of the respective skew single plates intersect each other, You may make it equalize the width of a laminated material by cut | disconnecting the both-sides edge part of a single plate straightly.

  Therefore, a conventional process that requires labor and cost is not required, and a skewed single plate constituting a laminated material having excellent yield characteristics with good yield and low cost can be obtained.

  The embodiment of the manufacturing method of the present invention is characterized in that in the second step, one of the adjacent strip-shaped plates is shifted in the length direction by pushing the strip-shaped plate in the length direction from one end side thereof (second step). invention).

  In this case, in the fourth step, the strip-shaped plate shifted in the length direction is moved in an oblique direction from the shifted end side (third invention).

  Alternatively, in the second step, each strip-shaped plate is inclined by moving one end of each strip-shaped plate faster than the other, thereby shifting one of the adjacent strip-shaped plates in the length direction. (4th invention).

  In this case, in the fourth step, the strip-shaped plate is moved in the same direction while being inclined (fifth invention).

  The oblique veneer manufacturing apparatus of the present invention includes a cutting unit that cuts a wooden veneer into a strip shape so that the fiber direction thereof is the length direction, and a plurality of strip-shaped plates, and adjacent strip-shaped plates. A coupling means for coupling one side of the other and the other side edge, a moving means for moving the coupled strip-shaped plates in a direction inclined from the length direction of the strip-shaped plates in a parallel state; A strip-shaped plate that moves in the parallel state is cut into a predetermined length in the moving direction, and a cutting means for forming a skewed single plate is provided (sixth invention).

  According to the apparatus of the present invention, a wood veneer that is a raw material is cut into a strip shape by a cutting means so that the fiber direction is the length direction. The plurality of strip-shaped plates obtained thereby are sequentially joined by means of joining, one of the adjacent strip-shaped plates is shifted in the length direction, and the one and the other side edge are joined. The combined strip-shaped plates are moved by the moving means in a direction inclined from the length direction in a parallel state. Then, the strip-shaped plates in parallel are cut to a predetermined length in the moving direction by the cutting means. Thus, a skewed single plate having a predetermined length is formed.

  In order to form the skewed single plate formed in this way into a shape (rectangular shape) in which the length between both side ends (this is the horizontal width of the skew single plate) with respect to the moving direction, In addition, a second cutting means for cutting both ends of the plurality of strip-shaped plates that are coupled with being shifted from each other during the movement in the fourth step may be provided.

  Alternatively, after forming a laminated material by laminating at least two skew single plates cut to a predetermined length in the fifth step so that the fiber directions of the respective skew single plates intersect each other, The lateral width of the laminated material may be made uniform by cutting the both side ends of the skewed veneer straightly by cutting means provided separately from the apparatus.

  In the embodiment of the manufacturing apparatus of the present invention, the joining means joins the cylinder mechanism that pushes the strip-shaped plate obtained by cutting the single plate in the length direction from one end side thereof, and the side edges of the adjacent strip-shaped plates. And a coupling mechanism for supplying the coupling material to be used (seventh invention).

  In this case, the moving means is constituted by a transport mechanism such as a belt conveyor or a roller that moves the strip-shaped plate shifted in the length direction obliquely from the shifted side (eighth invention).

  Alternatively, the coupling means is a coupling that couples a plurality of speed change rollers arranged on both sides in the moving direction and side edges of adjacent strip-shaped plates so that one of both ends of each strip-shaped plate moves faster than the other. The strip-shaped plate is sent to the coupling mechanism in an inclined state with respect to the moving direction by changing the number of rotations of the rollers on both sides. 9 invention).

  In this case, the moving means is constituted by a transport mechanism such as a belt conveyor or a roller that moves the strip-shaped plate in the same direction while being inclined (a tenth aspect of the invention).

  The skewed single plate manufactured by the manufacturing method or manufacturing apparatus of the present invention has no quality in terms of appearance and strength because it has no cuts in the fiber direction and has a uniform grain.

  In addition, since the fiber direction of the skewed single plate appears as a grain that is tilted to the left or right with respect to the length direction, it is easy to superimpose two skewed single plates so that the fiber directions cross each other. is there. Therefore, the effect that the laminated material can be manufactured efficiently regardless of a large-scale apparatus is brought about.

The top view which shows the structure of the manufacturing process of 1st Embodiment of this invention, and the apparatus which implements it. The top view which shows the structure which changed a part of manufacturing apparatus of FIG. It is a figure which shows the example of the means to couple | bond the side edge of an adjacent strip-shaped board, (A) is a case where a tape or a thread | yarn is used as a binder, (B) is a case where a stopper is used, (C) is adhesion The case where an agent is used is shown. The top view which shows the structure of the manufacturing process of 2nd Embodiment of this invention, and the apparatus which implements it. The top view which shows the structure of the manufacturing process of 3rd Embodiment of this invention, and the apparatus which implements it. The figure which shows the example of the conventional skew single plate.

  Hereinafter, embodiments of a method and an apparatus for manufacturing a skewed single plate according to the present invention will be described.

[Embodiment 1]
FIG. 1 shows the steps of the manufacturing method of the first embodiment and the configuration of an apparatus for carrying out the steps. First, the manufacturing apparatus of the present embodiment cuts a rectangular wooden veneer 1 so that the fiber direction 1a is in the length direction of the strips, and a plurality of strip-shaped plates 2a, 2b, 2c, 2d, 2e, Are provided with cutting means 3 for generating. As this cutting means, a cutting machine (cutter) for cutting a plate material or an electrically rotated saw (so-called circular saw) is used.

  As the material of the veneer 1, for example, broadleaf trees such as zelkova, oak, beech, oak, cherry, kiri, lawan, teak, conifers such as cedar, larch, pine, hinoki, cypress, hiba, or a combination thereof. Can be used.

  Next, in order to convey a plurality of strip-shaped plates formed by sequentially cutting the single plate 1 as described above to the coupling means 4 described later in the width direction (the direction from right to left in the figure). In addition, a conveyor mechanism (not shown) including a belt conveyor or a plurality of rollers is provided.

  When a plurality of strip-shaped plates conveyed as described above arrive, one of the adjacent strip-shaped plates (in the illustrated case, the leading strip-shaped plate 2e) is shifted in the length direction, and one of the strip-shaped plates is On the other hand, there is provided a coupling means 4 for coupling the side edges of the other (in the case of illustration, the strip-shaped plate 2f that has been reached first).

  The coupling means 4 includes a cylinder mechanism 5a that pushes the strip-shaped plate that has arrived as described above in the length direction from one end side thereof, and a locking member 5b that stops the other end of the strip-shaped plate pressed by the mechanism. It is comprised with the coupling mechanism 6 which supplies the coupling material (refer FIG. 3 mentioned later) which couple | bonds the side edge of an adjacent strip-shaped board.

  Here, when the leading strip-shaped plate 2e is pushed in the length direction by the cylinder mechanism 5a, the cylinder mechanism 5a is shifted from the side edge of the adjacent strip-shaped plate 2f. And 2f are joined together at their respective side edges. As the binding material, a strip 7a such as a tape or yarn melt shown in FIG. 3A, an inverted U-shaped stopper 7b shown in FIG. 3B, or adjacent as shown in FIG. 3C. An adhesive 7c applied to the side edge of the strip-shaped plate is used.

  Here, when the mounting position of the locking member 5b is changed, the shift in the length direction of the adjacent strip-shaped plate is changed, and accordingly, the plurality of strip-shaped plates in the parallel state are moved as follows. The direction (tilt) to be changed can also be changed. For this reason, the inclination of the fiber direction of the skew single plate finally formed can be adjusted by adjusting the mounting position of the locking member 5b.

  Next, there is provided moving means (not shown) for moving a plurality of strip-shaped plates joined in the parallel state by the joining means 4 in a direction inclined from the length direction of the strips. This moving means is constituted by a transport mechanism such as a belt conveyor or a roller that moves the strip-shaped plates in a parallel state in an oblique direction from the side of the strip-shaped plates that are shifted and coupled by the coupling means 4.

  In the present embodiment, the second cutting means 8 is disposed on both sides of the strip-shaped plate in order to cut both ends so that the plurality of strip-shaped plates moving in parallel have the same length. Has been. As the second cutting means 8, a circular saw that rotates electrically is used. By this second cutting means 8, the length between both side ends (this becomes the lateral width of the skew single plate) can be made uniform with respect to the moving direction of the strip-shaped plates 9 in parallel.

  The strip-shaped plates 9 that are in parallel as described above are cut to a predetermined length L (this is the length of the skew single plate) in the moving direction. For this reason, in the present embodiment, the cutting means 10 is installed at a position farther from the second cutting means 8 than the predetermined length L in the moving direction of the strip-shaped plate. As the cutting means 10, similarly to the first cutting means 3, a cutting machine (cutter) or a circular saw that rotates electrically is used.

  By cutting the parallel strip-shaped plates 9 by the cutting means 10, a skewed single plate 11 having a predetermined length and width is obtained.

  Since the manufacturing apparatus of the present embodiment is configured as described above, the method of manufacturing a skewed veneer using this is the cutting means 3 so that the fiber direction of the veneer 1 is in the length direction. A first step of obtaining a plurality of strip-shaped plates 2a, 2b, 2c,..., A second step of shifting one of the adjacent strip-shaped plates in the length direction by the coupling means 4, and A third step of joining one and the other side edges of adjacent strip-shaped plates, and a fourth step of moving the joined strip-shaped plates in a parallel state by a moving means in a direction inclined from the length direction of the strip-shaped plates. And a fifth step of forming the skewed single plate 11 by cutting the strip-shaped plate 9 moving in the parallel state into a predetermined length in the moving direction by the cutting means 10.

  In the second step, one of the adjacent strip-shaped plates can be shifted in the length direction by pushing the strip-shaped plate in the length direction from one end side thereof by the cylinder mechanism 5a. The strip-shaped plate shifted in the vertical direction can be moved in an oblique direction from the shifted end side.

  Note that the step of cutting both ends by the second cutting means 8 so that the strip-shaped plates moving in the parallel state have the same length can be omitted. In that case, after forming the laminated material by laminating at least two skew single plates 11 cut to a predetermined length in the fifth step, the fiber directions of each skew single plate 11 cross each other, The lateral width of the laminated material can be made uniform by cutting the both side ends of the skewed single plate 11 straightly by a cutting means provided separately.

  Further, the coupling means 4 used in the third step is not limited to a configuration (unit) in which the coupling mechanism 6 is provided along with the cylinder mechanism 5a and the locking member 5b, and the coupling mechanism 6 may be configured separately. . Specifically, as shown in FIG. 2, the coupling mechanism 6 can be arranged at a position spaced apart in the oblique movement direction of the strip-shaped plates, and the parallel strip-shaped plates can be coupled here.

  The skewed single plate 11 formed by carrying out the above method using the apparatus of the present embodiment has no breaks in the fiber direction as shown in the figure, and has excellent grain and uniform appearance and strength. Have good quality. In addition, since the fiber direction of the skewed single plate appears as a grain that is tilted to the left or right with respect to the length direction, it is easy to superimpose two skewed single plates so that the fiber directions cross each other. Yes, a laminated material can be manufactured efficiently regardless of a large-scale apparatus.

[Embodiment 2]
FIG. 4 shows the steps of the manufacturing method according to the second embodiment and the configuration of an apparatus for carrying out the steps. Here, the same components and means as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  First, as in the first embodiment, the manufacturing apparatus of the present embodiment cuts a rectangular wooden veneer 1 so that the fiber direction 1a is in the length direction of the strips to form a plurality of strip-shaped plates 2a, The cutting means 3 which produces | generates 2b, 2c, 2d, 2e, ... is provided.

  Next, a plurality of strip-shaped plates formed by sequentially cutting the single plate 1 as described above are combined in the width direction thereof (in the direction from right to left in the figure) to form a connecting means described later. In order to transport to the mechanism 6, a transport mechanism including a plurality of rollers 21, 22 and 23 is disposed.

  When transporting a plurality of strip-shaped plates as described above, one of the adjacent strip-shaped plates (in the illustrated case, the leading strip-shaped plate 2e) is shifted in the length direction so that one and the other of the strip-shaped plates ( In the case shown in the figure, a coupling means for coupling the side edges of the strip-shaped plate 2f) that has been reached first is installed.

  In this embodiment, the coupling means includes a plurality of speed change rollers 21 and 22 arranged on both sides in the moving direction so as to move one of both end portions of each strip-shaped plate faster than the other, and adjacent strip-shaped plates. It is comprised with the coupling mechanism 6 which supplies the coupling material which couple | bonds a side edge. Here, by making the rotational speeds of the transmission rollers 21 and 22 on both sides different, each strip-shaped plate can be sent to the coupling mechanism 6 while being inclined with respect to the moving direction.

  In the illustrated example, the rotation speed of the right speed change roller 21 in the traveling direction is made larger than the speed speed of the left speed change roller 22, so that the adjacent strip-shaped plates 2e and 2f are both in the direction of travel. And tilted downward to the left. The strip-shaped plates adjacent in such a tilted state are coupled together with their side edges by the coupling mechanism 6 as in the first embodiment.

  Next, as a moving means for moving the plurality of strip-shaped plates inclined and in parallel as described above in a direction inclined from the length direction of the strips, the inclined strip-shaped plates are kept in the same direction as they are. A roller 23 to be moved is provided.

  The second cutting means 8 for cutting both ends of the strip-shaped plates that move in parallel in this way so as to have the same length is disposed on both sides of the strip-shaped plate in the moving direction, and the cutting means. 8 is provided with a cutting means 10 for cutting the parallel strip-shaped plates 9 whose lengths are aligned by 8 to a predetermined length L in the moving direction to form the skewed single plate 11, and the second cutting The means 8 can be omitted as in the first embodiment.

  Since the manufacturing apparatus of the present embodiment is configured as described above, the method of manufacturing a skewed veneer using the manufacturing apparatus is the first so that the fiber direction of the veneer 1 is in the length direction. A first step of obtaining a plurality of strip-shaped plates 2a, 2b, 2c,... By cutting into strips by the cutting means 3, and a second step of shifting one of the adjacent strip-shaped plates by the connecting means 4 in the length direction. A third step of joining one and the other side edges of the adjacent strip-shaped plates, and the coupled strip-shaped plates are moved in a direction inclined from the length direction of the strip-shaped plates in a parallel state by a moving means; This is a method comprising a fourth step and a fifth step of forming the skewed single plate 11 by cutting the strip-shaped plate 9 moving in the parallel state into a predetermined length in the moving direction by the cutting means 10. .

  In the second step, each strip-shaped plate is inclined by moving one end of each strip-shaped plate faster than the other by the plurality of speed change rollers 21 and 22, thereby causing one of the adjacent strip-shaped plates to be inclined. In the fourth step, the strip-shaped plate is moved in the same direction while being inclined.

  According to the present embodiment, the skewed veneer 11 is not cut in the fiber direction as described above, has a uniform grain and has excellent quality in terms of appearance and strength. As will be described in the third embodiment, there is an advantage that the skew single plates having different grain inclinations can be easily formed by reversing the rotational speeds of the plurality of transmission rollers 21 and 22.

[Embodiment 3]
FIG. 5 shows the steps of the manufacturing method of the third embodiment and the configuration of an apparatus for carrying out the steps. Here, the same configurations and means as those in the second embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the present embodiment, the rotational speeds of the plurality of speed change rollers 21 and 22 arranged on both sides in the moving direction so as to move one of both end portions of each strip-shaped plate faster than the other are the same as in the second embodiment. Are reversed, that is, by making the rotation speed of the left transmission roller 22 larger than the rotation speed of the right transmission roller 21 in the traveling direction, both the adjacent strip-shaped plates 2e and 2f move in the traveling direction. It will be in the state where it inclined to the lower right. From the strip-shaped plates coupled in parallel in such a tilted state, a skewed single plate having a fiber direction tilt different from that in FIG. 4 is formed.

  Accordingly, by simply changing the rotational speed of the speed change rollers 21 and 22 in the apparatus configuration of the second or third embodiment, it is possible to easily obtain a skewed single plate having a different inclination of the slanted grain. Can be easily manufactured.

  According to the above-described embodiment, a skewed single plate having good characteristics is provided at a much lower cost and more efficiently than the conventional manufacturing method.

  DESCRIPTION OF SYMBOLS 1 ... Single plate, 2a-2f ... Strip-shaped board, 3 ... 1st cutting means, 4 ... Coupling means, 5a ... Cylinder mechanism, 5b ... Locking member, 6 ... Coupling mechanism, 7a, 7b, 7c ... Various couplings Material 8 ... second cutting means 9 ... parallel strip-shaped plate 10 ... cutting means 11 ... slanting single plate 21,22,23 ... roller

Claims (10)

A first step of obtaining a plurality of strip-shaped plates by cutting a wooden veneer into strips so that the fiber direction thereof is in the length direction;
A second step of shifting one of the adjacent strip-shaped plates in the length direction;
A third step of joining one and the other side edges of the adjacent strip-shaped plates;
A fourth step of moving the combined strip-shaped plates in a direction inclined from the length direction of the strip-shaped plates in a parallel state;
And a fifth step of forming the skewed single plate by cutting the strip-shaped plates moving in the parallel state into a predetermined length in the moving direction. In the manufacturing method of the skew single plate of Claim 1,
In the second step, one of the strip-shaped plates is shifted in the length direction by pressing in the length direction from one end side of the strip-shaped plate. In the manufacturing method of the skew single plate of Claim 2,
In the fourth step, the strip-shaped plate shifted in the length direction is moved in an oblique direction from the shifted side. In the manufacturing method of the skew single plate of Claim 1,
In the second step, each strip-shaped plate is inclined by moving one end of each strip-shaped plate faster than the other, thereby shifting one of the adjacent strip-shaped plates in the length direction. Manufacturing method. In the manufacturing method of the skew single plate of Claim 4,
In the fourth step, the strip-shaped plate is moved in the same direction while being inclined. Cutting means for generating a plurality of strip-shaped plates by cutting a wooden veneer into a strip shape so that the fiber direction is in the length direction;
A coupling means for coupling one side and the other side edge by shifting one of the adjacent strip-shaped plates in the length direction;
Moving means for moving the coupled strip-shaped plates in a parallel state in a direction inclined from the length direction of the strip-shaped plates;
An apparatus for producing a skewed single plate, comprising: cutting means for cutting the strip-shaped plates that move in the parallel state into a predetermined length in the moving direction to form a skewed single plate. In the manufacturing apparatus of the skew single plate of Claim 6,
The coupling means includes a cylinder mechanism that pushes the strip-shaped plate obtained by cutting the single plate in the length direction from one end side thereof, and a coupling mechanism that supplies a coupling material that couples the side edges of adjacent strip-shaped plates. The manufacturing apparatus characterized by comprising. In the manufacturing apparatus of the skew single plate of Claim 7,
The said moving means is comprised by the conveyance mechanism which moves the strip-shaped board which shifted | deviated to the length direction from the shifted side to the diagonal direction, The manufacturing apparatus characterized by the above-mentioned. In the manufacturing apparatus of the skew single plate of Claim 6,
The coupling means is a coupling material that couples a plurality of speed change rollers arranged on both sides in the moving direction and side edges of adjacent strip-shaped plates so as to move one of both ends of each strip-shaped plate faster than the other. The manufacturing apparatus is characterized in that each strip-shaped plate is sent to the coupling mechanism in an inclined state with respect to the moving direction by varying the rotational speed of the rollers on both sides. . In the manufacturing apparatus of the skew single plate of Claim 9,
The said moving means is comprised with the conveyance mechanism made to move in the same direction in the state which inclined the strip-shaped board, The manufacturing apparatus characterized by the above-mentioned.

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