JPH0952206A - Manufacturing equipment of strand for laminated wood - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a cut face of an obtained strand present the same plane without fail and to make this equipment excellent in operability. SOLUTION: Manufacturing equipment of a strand W1 for laminated wood which manufactures the strand W1 by cutting flat-plate-shaped material wood W in the direction of width sequentially. This equipment is constructed of an introducing part X which introduces the raw wood W, a cutting part Y which cuts the introduced raw wood W and a discharge part Z which discharges the strand W1 formed by cutting. The introducing part X is provided with a sending-in mechanism 3 which sends the raw wood W into the cutting part Y intermittently and the cutting part Y is provided with a cutting mechanism 5 which press-cuts the raw wood W at the time of stoppage thereof synchronously with the intermittent sending-in by the introducing part X, while the discharge part Z is provided with a discharge means 8 which conveys and discharges the strand W1 obtained by cutting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated structure in which long thin strips (strands) of wood are laminated to manufacture a laminated wood, and a flat raw material wood is preliminarily cut as a pretreatment for manufacturing the laminated wood. The present invention relates to an apparatus for manufacturing a material strand.

[0002]

2. Description of the Related Art So-called improved wood, which is obtained by subjecting natural wood to mechanical or chemical treatment, has the drawbacks of the raw material being improved, and is superior in terms of size and various performances to raw wood. Since it can be obtained, it is now widely used in various places. Such improved wood includes plywood laminated with laminated rotary veneers, fiberboard formed by mainly using plant fibers of wood, and particle board obtained by pressure bonding small pieces of wood through an organic binder. , It is possible to roughly classify it into a laminated lumber in which a large number of lumber sawing boards, small square timbers, etc. are assembled and are made into blocks into a certain three-dimensional shape by adhesion. Among these improved timbers, laminated wood is applicable as a structural material for construction, etc., and is in the trend of being increasingly used in various places in the future.

Conventionally, such laminated lumber has been manufactured by laminating veneers (lamina) of a predetermined size obtained by lumber lumber, and adhering and bonding these with an adhesive. In the meantime, since the raw wood which can be sufficiently used as the lumber has been used, it has a problem that it does not contribute to the effective utilization of the wood resources and the environmental protection and that the manufacturing cost increases.

Therefore, a method of manufacturing a laminated wood targeting waste materials such as thinned wood has been proposed in Japanese Patent Publication No. 50-17512. According to this, thinning materials and the like are processed into strands with a small cross-sectional size and a fixed length, and the adhesive is applied to the surface of each strand, and a plurality of the strands coated with the adhesive are bundled together at a predetermined pressure. It is described that the laminated wood is obtained by compressing and heating and drying in a compressed state.

In addition to the above Japanese Patent Publication No. 50-17512, many proposals have been made regarding the production of laminated lumber using a waste material. In any case, in order to produce the laminated lumber, It is essential to manufacture strands of a given size.

[0006]

In order to efficiently manufacture the above-mentioned strand, logs such as thinned wood are pushed into a cylindrical cutting means having radial cutting blades inside. A method of manufacturing a strand having a fan-shaped cross section by cutting in a vertical tearing state (JP-A-57-84811), a disk-shaped cutter having a plurality of annular recesses and annular projections on the outer peripheral surface, and the annular recess And, each of the disk-shaped cutters having an annular convex portion and an annular concave portion corresponding to the annular convex portion are arranged so as to face each other so that the convex portion partially fits into the concave portion while being axially supported by two parallel shafts, A rotating disk-type strand manufacturing apparatus (Japanese Patent Laid-Open No. 57-89591) in which they are cut by rotating them in opposite directions to bite in wood has been proposed.

However, the above-mentioned Japanese Patent Laid-Open No. 57-8481.
According to the method described in Japanese Patent Publication No. 1, it is difficult to apply the raw material wood for producing the strands other than the log, and not only the application range is narrow, but also the end face of the log is forced against the radial cutting blade. Therefore, the cutting blade is easily damaged, and as a result, the frequency of repair and replacement of the cutting blade is increased, and the cutting surface of the log is crushed due to excessive pressure, and the strength of the laminated product that is the final product is weakened. Had the problem.

Further, in the strand manufacturing apparatus described in the above-mentioned Japanese Patent Laid-Open No. 57-89591, the wood is bitten into the abutting portions of both disc-shaped cutters so that the concave portion of one disc can be made into the concave portion of the other disc. Since the convex part of the disk is inserted and the wood is bitten by this insertion, the cut surface of the obtained strand is not a flat surface like when cutting with a knife, and it follows the wood grain. Curve and unevenness are formed. Strands whose cut surfaces do not form the same plane are difficult to uniformly apply an adhesive to the surface, and as a result, the strength of the laminated product as the final product can be made uniform. It had a problem that it could not be done.

The present invention has been made to solve the above-mentioned problems, and it is possible to surely form the same plane on the cut surface of the obtained strand, and it is also excellent in operation performance. It is an object of the present invention to provide an apparatus for manufacturing a strand for laminated wood.

[0010]

According to a first aspect of the present invention, there is provided an apparatus for producing a strand for laminated wood, which is for producing strands by sequentially cutting a flat raw material wood in the width direction. The device, which is composed of an introduction unit for introducing the raw material wood, a cutting unit for cutting the introduced raw material wood, and a discharge unit for discharging the strand formed by cutting, and the introduction unit, A feeding mechanism that intermittently feeds raw wood toward the cutting section is provided,
The cutting unit is provided with a cutting mechanism that press-cuts the raw wood at the time of stop in synchronization with the intermittent feeding of the introducing unit, and the discharging unit has a discharging unit that transfers and discharges the strand obtained by the cutting. It is characterized by being provided.

According to this apparatus for manufacturing a strand for laminated wood, the raw material wood supplied to the introduction section is intermittently sent to the cutting section by the sending mechanism. Then, in the cutting part, the raw material wood is press-cut when stopped by the cutting mechanism in synchronism with the intermittent feeding, and strands are sequentially obtained. The strands are sequentially discharged to the next step by the discharging means of the discharging section.

According to a second aspect of the present invention, there is provided an apparatus for producing a laminated lumber strand according to the first aspect, wherein the feeding mechanism has a downstream side facing the cutting portion. A cradle for placement, a sliding contact belt that is provided above the cradle from the upstream side to the downstream side in parallel with the cradle, and transfers the raw wood on the cradle to the downstream side, and the cradle. And a pressing pinching roller that is provided at the downstream end of the pair and that is configured by a pair of upper and lower rollers that press and pinch the raw material wood. At least one of the pair of rollers is intermittently pressed. It is configured to forcibly supply the raw material wood that is pressed and nipped by driving around the axis to the cutting portion, and the sliding contact belt slips on the raw material wood to circulate while the driving of the roller member is stopped. Set And it is characterized in that is.

According to the apparatus for manufacturing a strand for laminated wood, the raw material wood supplied on the receiving stand of the feeding mechanism slides on the receiving stand by the drive of the sliding contact belt slidably contacting the upper part and the downstream side. To reach the pair of upper and lower pressing nip rollers provided at the downstream end. Then, the raw material wood that has reached the pressing nip roller is fed to the cutting portion while being driven by the intermittent driving while being caught between the rollers, and is fed to the cutting portion when the driving is stopped. Be blocked.

While the pressing and pinching roller is not driven, the sliding contact belt slips on the raw material wood and revolves, so that the material wood is pressed against the pressing and pinching roller by this orbit. When the next pressing and pinching roller is driven, the raw material wood is again bitten between the rollers and sent to the cutting section. Therefore, the raw wood is sequentially and intermittently supplied to the cutting portion by the intermittent drive of the pressing and pinching rollers.

According to a third aspect of the present invention, there is provided an apparatus for producing a laminated lumber strand according to the first or second aspect, wherein the cutting mechanism has a plurality of cutting mechanisms extending in a width direction on a lower end surface thereof. The cutting blade is provided with a cutting blade holding member that moves up and down by the drive of the driving means, and a blade abutment table with which the cutting edge of the cutting blade abuts in the lowest position of the cutting blade holding member. The contact table is characterized in that the raw wood fed from the introduction section is positioned so as to be positioned on the blade contact table.

According to this apparatus for manufacturing a strand for laminated wood, the raw wood fed into the cutting mechanism is in a state of being positioned on the blade abutment table. In this state, the strand is obtained by being cut by the cutting blade held by the cutting blade holding member that has been lowered by the driving of the driving means.

According to a fourth aspect of the present invention, there is provided an apparatus for producing a laminated wood strand according to any one of the first to third aspects, wherein the discharging means is driven by a driving means. It is characterized in that it is constituted by two cord-shaped belts that are provided in parallel from the upstream side to the downstream side that are driven to rotate.

According to this apparatus for producing a strand for laminated wood, the strand obtained by the cutting means is transferred while being placed in a bridged state on two string-like belts which are driven to rotate by the driving means in the discharging means. It is done and sent out.

[0019]

BEST MODE FOR CARRYING OUT THE INVENTION First, a method for manufacturing laminated wood using a strand manufactured by the apparatus of the present invention will be described. FIG. 1 is a process chart showing an example of a method for manufacturing a laminated material using a strand. As shown in this figure, in the laminated wood, the raw material wood W is sequentially processed in the strand manufacturing process P1, the adhesive applying process P2, the drying process P3, the laminating process P4, the thermocompression molding process P5, and the cutting process P6. Is manufactured by.

The above-mentioned strand manufacturing process P1 is executed by using the strand manufacturing apparatus 1 according to the present invention. The adhesive applying step P2 is performed by the adhesive applying section 21 of the adhesive applying apparatus 200 including the adhesive applying section 210 and the drying section 220.
0, and the drying step P3 is performed in the drying unit 220 of the adhesive applying device 200. The laminating step P4 includes the laminating section 310 and the thermocompression molding section 3.
20 is performed in the laminating unit 310 of the molding apparatus 300 including the molding machine 300 and the thermocompression molding process P5.
It is executed in the hot press forming unit 320. The final cutting process P6 is executed by the cutting device 400.

Specifically, the above strand manufacturing process P1
The raw material wood W in the form of a flat plate introduced into (1) is processed into elongated strands W1 by the strand manufacturing apparatus 1 according to the present invention. This strand W1 is used by the adhesive applying section 210 of the adhesive applying apparatus 200 in the adhesive applying step P2.
After the adhesive is applied to the surface of the adhesive in the subsequent drying step P3, the drying section 220 of the adhesive applying device 200 dries the adhesive to the extent that a coating layer is formed on the surface of the adhesive. Sent in.

Then, in the laminating step P4, the dried strands W3 derived from the drying step P3 are aligned in a predetermined alignment state in the laminating section 310 of the molding apparatus 300 into a laminate W4, and the next thermocompression molding step is performed. In P5, the laminate W4 is compressed while being heated in the thermo-compression molding section 320 of the molding apparatus 300 to become the hot-pressure laminate W5. In the final cutting step P6, the thermo-compression laminate W5 is cut by the cutting device 400. Laminated wood W6 cut into a predetermined three-dimensional shape
Is obtained.

The present invention also relates to a strand manufacturing apparatus 1 used in the strand manufacturing process P1. In the present embodiment, the strand manufacturing process P
The raw material wood W supplied to No. 1 has a thickness of 2.6 mm to 4.0 mm generated in the veneer manufacturing plant and a fiber direction dimension of 960 mm.
A piece of waste material of a rotor single plate having a size of up to 1920 mm is cut into a rectangular shape having a predetermined size. Specifically, a rotary veneer having the above size is cut so as to be orthogonal to the fiber direction to have a fiber direction size of 480 mm, and the fiber direction size of 480 mm is sequentially supplied to the strand manufacturing apparatus 1. I am trying to do it. Then, the raw material wood W supplied to the strand manufacturing apparatus 1 is sequentially cut into a width of 4 mm and a thickness of 2.6 mm to 4 mm × width of 4 m.
A three-dimensional strand W1 of m × length of 480 mm is continuously manufactured.

In the present embodiment, the raw wood W
Is made from rotary veneer waste,
The present invention is not limited to the raw material wood W obtained from a rotary veneer, and various waste materials obtained from lumber may be used. Further, the strand W1 is not limited to being cut into the above size, and can be arbitrarily set in size in consideration of the situation of the raw material wood W, the size of the desired laminated wood, and the like.

FIG. 2 is a perspective view showing an example of a strand manufacturing apparatus according to the present invention, and FIG. 3 is an explanatory view of a side sectional view thereof. As shown in these figures, the strand manufacturing apparatus 1 includes four pillars 12 installed on the floor F.
Which is formed on the pedestal 11 having the above, and which is provided on the upstream side (left side) for introducing the raw material wood W
A cutting section Y for cutting the introduced raw material wood W, and a discharging section Z for discharging the cut and formed strands W1.

A cutting section Y and a discharging section Z on the gantry 11
A pair of front and rear gate structure structures 10 are erected at a portion corresponding to, and the introduction portion X is formed on the left side of the gate structure structure 10, and the upstream side (left side) of the gate structure structure 10 is formed. The cut portion Y is formed in the portion. Further, the discharge part Z is formed between the pair of gate structure structures 10.

In the introduction section X, a raw material receiving plate (a receiving table) 2 extending horizontally from a substantially central upper portion of the gantry 11 to the upstream side.
And a pair of weir portions 13 are provided on both sides in the width direction of the raw material receiving plate 2, and the raw material wood W is placed flat on the raw material receiving plate 2 between the pair of weir portions 13. It will be supplied by. In the present embodiment, the distance between the dam portions 13 is set to be slightly longer than the fiber direction dimension of the raw material wood W of 480 mm.
There is no limitation on this size, and it is sufficient that the size is larger than the fiber direction size.

Further, the introduction section X is provided with a feeding mechanism 3 for intermittently feeding the raw wood toward the cutting section. The feeding mechanism 3 includes a pair of upper and lower pressing nip rollers 4 including a sliding contact belt 31 provided on the upper part of the raw material receiving plate 2 and an upper roller 41 and a lower roller 42 provided on the downstream side of the raw material receiving plate 2. It consists of and.

A pair of cord-shaped belts is used as the sliding contact belt 31, and the width of the cord-shaped belts is rotatably supported around a horizontal axis provided on the upstream side of the raw material receiving plate 2. It is stretched between a pair of directional first pulleys 32 and a pair of width-directional second pulleys 33 rotatably supported around a horizontal axis provided at the downstream end thereof. The first pulley 32
Is rotated counterclockwise by transmitting the drive rotation of the first drive motor 34 provided on the floor F through the chain 35, and the sliding contact belt 31 is rotated counterclockwise. There is.

The sliding contact belt 31 located on the lower side
Between the lower surface of the raw material W and the upper surface of the raw material receiving plate 2
A wood-holding gap 21 that can be sandwiched in the sliding contact state is formed. From the upstream end of the raw material receiving plate 2, the wood-holding gap 21 is formed.
By pushing the raw material wood W into, the raw material wood W is moved to the downstream side while sliding on the raw material receiving plate 2 along with the circular movement of the sliding contact belt 31.

In the present embodiment, when a force that prevents the entrained movement is applied to the raw wood W,
The sliding contact belt 31 slips on the surface of the raw material wood W, so that the raw material wood W is stopped and continues to move around.
Friction between the sliding contact belt 31 and the raw material wood W is set.

In this embodiment, a rubber belt is used as the sliding contact belt 31, and the distance between the lower surface of the rubber belt and the raw material receiving plate 2 is set to be slightly smaller than the thickness dimension of the raw material wood W. . Therefore, when the raw material wood W is sandwiched between the raw material receiving plate 2 and the sliding contact belt 31, the sliding contact belt 31 is elastically deformed by its flexibility, and the raw material wood W is pressed by the elastic deformation. Since it is pressed toward 2, the sliding contact belt 3
1 and the raw wood W between the raw wood W and the raw material receiving plate 2
A frictional force larger than the frictional force between the raw material wood W and the sliding contact belt 31 is slid on the raw material receiving plate 2 to move. However, when a large force that prevents the movement of the raw material wood W is applied, the sliding contact belt 31 slips on the upper surface of the raw material wood W and idles.

Instead of the rubber belt, a soft synthetic resin belt, a thick woven product, a woven product with flocked surface, or a felt material may be used as the sliding contact belt 31. When using a flocked woven product, the flocked surface may contact the raw wood W.

The downstream end of the raw material receiving plate 2 is a free end,
A roller contact space 22 in which the upper roller 41 and the lower roller 42 contact each other is formed between the free end and the upstream end of the gate structure 10. Then, the raw material wood W sent to the downstream side on the raw material receiving plate 2 by the sliding contact belt 31 is laid out so as to stop at the contact portions of the rollers 41 and 42 in the roller contact space 22. ing.

A pair of front and rear columns 43 are erected at the downstream ends of the upper surfaces of the pair of weir portions 13 in the width direction, and a bridging plate 44 is provided on top of the pair of columns 43. A screw hole is screwed in the center of the bridge plate 44, and a screw shaft 45 having a head at the top is screwed into the screw hole. On the other hand, a holding bearing 46 having a bearing groove whose lower portion is opened is fitted onto the pair of columns 43 so as to be vertically movable. A coil spring 47 is interposed between the holding bearing 46 and the screw shaft 45. Has been done. An upper roller support shaft 48 rotatably supporting the upper roller 41 is fitted in the bearing groove of the pressing bearing 46.

A pair of columns 14 in the width direction are erected on the pedestal 11, and a lower roller support shaft 49 is bridged between the columns 14, and the lower roller 42 is attached to the lower roller support shaft 49. It is rotatably supported. Therefore,
The upper roller 41 and the lower roller 42 are always in contact with each other while being pressed by the biasing force of the coil spring 47. The pressing force of the upper roller 41 against the lower roller 42 can be changed by adjusting the screwing amount of the screw shaft 45.

The lower roller 42 is a driving roller, and is configured to be rotationally driven intermittently by a roller intermittent driving mechanism which will be described later. Therefore, the intermittent driving of the lower roller 42 causes the sliding contact belt 31 to move. The raw material wood W fed by the orbital drive is supplied to the next cutting portion Y so as to be caught between the rollers 41 and 42.

The cutting section Y is provided with a cutting mechanism 5. The cutting mechanism 5 is provided with a plurality of cutting blades 52 extending in the width direction on the lower end surface thereof, and a cutting blade holding member 51 that moves up and down by the drive of a driving unit, and cuts in the lowest position of the cutting blade holding member 51. It is composed of a blade contact table 53 with which the blade tip of the blade abuts, and a blade vertical movement mechanism 50 for vertically moving the cutting blade holding member 51. The blade contact table 53
Is made of wood so as to prevent damage to the cutting edge of the cutting blade 52. The blade contact table 53 is dimensioned so that the raw wood material W fed from the introduction section X is located on the blade contact table 53.

The cutting blade holding member 51 is clamped at both sides in the width direction by the guide plates 15 provided on the columns of the gate holding structure 10 so that movement thereof in a direction other than the vertical direction is restricted. .

The blade vertical movement mechanism 50 is provided so as to rotate together with a second drive motor 54 provided at the downstream end of the gantry 11 and a drive shaft 54a extending in the horizontal direction of the second drive motor 54. A small pulley 54b, a horizontally extending rotary shaft 55 rotatably supported by a bearing 16 provided on the top of the gate structure 10, and a right end portion of the rotary shaft 55 so as to rotate together. Large pulley 56
A connecting belt 57 stretched between the large pulley 56 and the small pulley 54b, a crank 55a provided at the left end of the rotary shaft 55, and an upper portion of the crank 55a connected to the crank 55a via a crank arm 55b. The lower part of the link rod 58a is connected to the cutting blade holding member 51 via the connecting shaft 58a.

Therefore, the drive shaft 54a is rotationally driven by the drive of the second drive motor 54, and this rotational force is transmitted to the rotary shaft 55 via the small pulley 54b, the connecting belt 57 and the large pulley 56, and the rotary shaft 55. Will rotate about its axis. The rotation of the rotating shaft 55 causes the crank arm 55b attached to the crank 55a to eccentrically rotate around the rotating shaft 55, and the eccentric rotation causes the link rod 58 to move up and down, which results in the cutting blade holding member 51 moving up and down. The raw wood W positioned on the blade abutment table 53 is cut by the cutting blade 52 when it is moved downward.

In the present embodiment, the lower edge surface of the cutting blade holding member 51 has four cutting blades 52 at a pitch of 4 mm.
Is suspended and fixed, and the cutting blade 52 is a cutting blade holding member 51.
The material wood W located in the lower part is cut into four strands W1 by descending with the descending. The number of cutting teeth may be 5 or more,
It may be less than four.

Further, in the present embodiment, the driving force of the blade vertical movement mechanism 50 is utilized to synchronize the driving of the blade vertical movement mechanism 50 and the pressing and pinching roller 4 is rotationally driven in synchronization.
Is provided. The synchronization mechanism 6 includes a first gear 61 that is concentrically fixed to the rotary shaft 55, and a second gear 62 that meshes with the first gear 61 and has a bevel gear formed on one side surface.
The third gear 63 is provided with a bevel gear that meshes with the bevel gear of the second gear 62. The angles of the second gear 62 and the third gear 63 are set such that their respective axes are orthogonal to each other. A crankshaft 63a is provided on the third gear 63, and a connecting rod 64 is attached to the crankshaft 63a. The lower end of the connecting rod 64 is connected to the roller rotating mechanism 7. The connecting rod 64 is arranged obliquely from the third gear 63 toward the roller rotating mechanism 7.

As shown in FIGS. 4 to 7, the roller rotating mechanism 7 has an arcuate claw member 71 rotatably supported on the lower end of the connecting rod 64 about a support shaft 64a, and the lower portion. Claw gear 72 concentrically fixed to the roller support shaft 49
And a claw gear holding disc 73 that holds the claw gear 72. The pawl member 71 is balanced so as to rotate counterclockwise around the support shaft 64a by gravity while being supported by the support shaft 64a.

The claw member 71 is provided at its left end with a scraping claw 71a which comes into contact with the claw 72a of the claw gear 72, and when the connecting rod 64 moves diagonally upward, the scraping claw 71a is moved. The claw 72a is scraped upward, whereby the claw gear 72 is rotated clockwise around the lower roller support shaft 49. The lower roller support shaft 49 is provided with an unillustrated one-way rotation clutch. The action of this clutch causes the support shaft 49 to rotate in the clockwise direction but prevent rotation in the counterclockwise direction. Has become.

The number of teeth of each gear 61, 62, 63 is set so that one rotation of the rotary shaft 55 corresponds to one rotation of the third gear 63. Therefore, when the rotating shaft 55 makes one rotation, the third gear 63 also makes one rotation accordingly, and one rotation of the third gear 63 causes the connecting rod 64 to make one reciprocating motion. Rotates clockwise by a predetermined angle, and by this rotation, the lower roller 42
The raw wood W that is pressed and nipped by the upper roller 41 and the lower roller 42 by the rotation of 1 is sent out onto the blade contact base 53 by one pitch, that is, only four strands.

The raw material wood W sent out onto the blade abutment table 53 is press cut into four pieces by the cutting blade 52 descending in synchronization with this sending out, and four strands W1 are obtained at the same time. ing. Therefore, the rotary shaft 55
By continuing the rotation of the raw material wood W on the raw material receiving plate 2, the downstream end of the raw material wood W is intermittently sent out to the blade contact base 53, and is cut by the cutting blade 52 each time, and the strands are sequentially cut into four strands. W1 will be manufactured.

The discharging section Z is provided with discharging means 8 for transferring and discharging the strand W1 obtained by the cutting at the cutting section Y. The discharging means 8 includes a chute 81 provided on the blade contact base 53 and the chute 8
It is configured by two cord-shaped belts 82 provided on the downstream side of 1, and a third drive motor 83 that drives the cord-shaped belts 82.

A pair of belt support plates 84 in the width direction are provided at the inner lower portions of the pair of gate frame structures 10, and a pair of horizontal shafts 84a are provided at the upper and lower ends of the belt support plates 84, respectively. A pulley 86 is rotatably supported on the horizontal shaft 84a so as to be rotatable about its axis, and the string belt 82 is stretched between the upstream pulley 86 and the downstream pulley 86. Further, the drive rotation of the third drive motor 83 is transmitted to the pulley 86 on one side via the drive belt 85.

Therefore, by driving the third drive motor 83, the strand W1 produced at the cutting portion Y is produced.
Is slid down the chute 81 and supplied onto the two cord-shaped belts 82, is transported to the downstream side by the circular movement of the cord-shaped belts 82, and is led out to the outside from the downstream end.

Since the strand manufacturing apparatus 1 of the present invention is configured as described above, when the raw material wood W is supplied onto the raw material receiving plate 2, the raw material wood W is received by the orbital movement of the sliding contact belt 31. It slides on the plate 2 and is fed to the downstream side, and comes into pressure contact with the pressing nip roller 4. Then, the leading end of the raw wood W is pinched between the upper roller 41 and the lower roller 42 against the biasing force of the coil spring 47 by the intermittent drive of the pressing and pinching roller 4.

Then, the tip of the raw material wood W is supplied to the upper surface of the blade abutment table 53 when the pressing and nipping roller 4 is driven, and the cutting blade holding member by the rotation drive of the second drive motor 54 when the pressing and nipping roller 4 is stopped. By the downward movement of 51, it is cut by the cutting blade 52, and the second drive motor 54 is driven to sequentially manufacture the strand W1 having the predetermined size.

The produced strand W1 has a chute 8
It rolls down on 1, and is sequentially conveyed by the string belt 82, and is discharged to the outside of the strand manufacturing apparatus 1. Since the broken defective product of the strand W1 falls from the string belt 82, the defective product is automatically selected.
The strand W1 manufactured in this manner is introduced into the adhesive application step P2 by a manual operation of an operator or by a transfer means such as a conveyor belt.

The operation of the cutting portion Y will be described below with reference to FIGS. 4 to 7 are explanatory views for explaining the operation of the feeding mechanism and the cutting mechanism, and FIG. 4 is a state immediately before the raw material wood is fed into the cutting unit, and FIG.
7 is a state in which the raw material wood has been sent to the cutting unit, FIG. 6 is a state in which the raw material wood sent to the cutting unit is being cut, FIG.
Shows the state immediately after the strand was manufactured at the cut portion.

First, in the state shown in FIG. 4, the uppermost cutting blade 52 is about to descend due to the rotation of the rotary shaft 55. Further, the rotation of the cutting blade holding member 51 is the first
It is transmitted to the third gear 63 via the gear 61 and the second gear 62, and the clockwise rotation of the third gear 63 about its axis causes the crankshaft 63a located diagonally above and to the left of the third gear 63 to move to the right. Trying to move diagonally upward.

Then, when the third gear 63 is rotated about 45 ° from the state shown in FIG. 4, the pawl member 71 is moved obliquely upward by the movement of the connecting rod 64 obliquely upward, and is caught by the pawl 72a. The claw gear 72 is rotated about 45 ° clockwise by the upward movement of the scraping claw 71a, and the rotation of the raw wood W pressed between the upper roller 41 and the lower roller 42 is caused by this rotation. It is supplied onto the blade contact table 53. At this time, the strand W1 already placed on the blade contact table 53 by the previous cutting operation is extruded to the downstream side by the tip portion of the raw material wood W.

In the state shown in FIG. 5, the rotary shaft 5
Since the blade edge of the cutting blade 52 is in contact with the surface of the raw material wood W by the rotation of 5 about 45 °, the raw material wood W does not move forward even when the sliding contact belt 31 revolves. Numeral 31 continues the orbital movement while slipping on the surface of the raw material wood W.

Then, when the third gear 63 further rotates about 45 °, the connecting rod 64 descends obliquely downward to the left as shown in FIG. 6, and the scraping claw 71a moves to the claw 7 next to the claw gear 72.
The upper part of 2a is slid and hooked on the lower part of the claw 72a. In this state, the cutting blade 52 reaches the lowest position,
The raw material wood W on the blade abutment table 53 is in a state of being press-cut.

Thereafter, as the third gear 63 further rotates about 45 °, the pawl member 71 moves further obliquely downward as shown in FIG. 7, and the cutting blade 52 rises to move the blade contact table 53. 4 strands W1 on top
Is formed. Then, by continuing the rotation of the rotary shaft 55, the raw material wood W shown in FIGS. 4 to 7 is supplied onto the blade contact table 53, cut on the blade contact table 53, and the blade contact table. The discharge process of the strand W1 from above 53 is repeated, and the strand W1 is continuously manufactured from the raw material wood W.

FIG. 8 is a side sectional view showing another example of the pressing and pinching roller. As shown in this figure, the pressing nip roller 4a of this example is composed of an upper roller 41 and a lower roller 42 similar to the above, and a second upper roller 41a provided on the downstream side of the lower roller 42.

The second upper roller 41a is a rotating arm 4 which is rotatably supported around an upper roller supporting shaft 48.
It is provided at the downstream (right) tip of 1b. Specifically, a horizontal shaft 41c is provided at the tip of the rotating arm 41b in parallel with the upper roller support shaft 48, and the second upper roller 41a is rotatably supported around the horizontal shaft 41c. There is. The rotating arm 41b has a length of the downstream side of the upper roller support shaft 48 that is the most upstream cutting blade 52.
Of the second upper roller 41a is dimensioned such that the second upper roller 41a does not interfere with the cutting blade 52.

The rotating arm 41b also extends upstream from the upper roller support shaft 48, and the push-up member 41e connected at the upstream end thereof via the support shaft 41d.
have. A lower portion of the push-up member 41e is loosely fitted in a guide hole 2a formed through the raw material receiving plate 2 in the vertical direction so that the push-up member 41e can move up and down.

A flange portion 41 is provided on the push-up member 41e.
The coil spring 41g is fitted into the push-up member 41e between the flange 41f and the raw material receiving plate 2, and the push-up member 41e is pushed by the biasing force of the coil spring 41g.
Is biased upwards. Accordingly, the urging force urges the rotating arm 41b to rotate clockwise around the upper roller support shaft 48, and the raw material receiving plate 2
The lower end of the upper raw wood W is the second upper roller 41a.
It is being pressed downward by.

On the other hand, a delivery belt 31a is stretched between the second upper roller 41a and the upper roller 41. Therefore, the delivery belt 31a is attached to the upper roller 41
It rotates around the lower roller support shaft 49 in the counterclockwise direction as indicated by the arrow, and sends out the raw wood W sandwiched by the raw material receiving plate 2 and the delivery belt 31a to the downstream side. .

According to the pressing and nipping roller 4a of this example, the raw wood W sent to the downstream side of the raw material receiving plate 2 by the rotation of the sliding contact belt 31 has its rear end portion in the upper roller 41.
Even if it passes through the opposing portion between the lower roller 42 and the lower roller 42, the raw material wood W is sent to the end of the cutting blade 52 by the circulation of the delivery belt 31a. It is convenient to process the wastelessly.

Further, in this example, four cutting blades 52
The vertical movements thereof are guided by the guide member 52a. Specifically, the guide member 52a is provided with four through holes 52b corresponding to the respective cutting blades 52,
Four cutting blades 52 are penetrated through these penetration holes 52b.

By doing so, the raw material wood W is cut by the vertical movement of the cutting blade 52, and even if an abnormal force is applied to the cutting blade 52 at this time, the bending of the cutting blade 52 is ensured by the guide member 52a. Being prevented,
Even if the strand W1 formed by cutting remains sandwiched between the cutting blades 52, the sandwiching state is removed by the guide member 52a when the cutting blade 52 rises, so the strand W1 remains between the cutting blades 52. The inconvenience of doing is gone.

Incidentally, in the above embodiment, the intermittent rotation drive of the pressing and pinching roller 4 and the cutting blade holding member 51 are performed.
The vertical movement of the motor is synchronized with the above-mentioned synchronizing mechanism 6, but the present invention is not limited to the application of the synchronizing mechanism 6, and the second drive motor for rotating the rotary shaft 55. A driving motor for driving the pressing and nipping roller 4 may be provided separately from the motor 54, and driving between these motors may be synchronously driven by an electric signal.

In the above embodiment, in order to reciprocate the connecting rod 64, the rotation of the rotary shaft 55 is transmitted to the third gear 63 via the first gear 61 and the second gear 62. However, if the rotation of the rotary shaft 55 is directly transmitted from the first gear 61 to the third gear 63 by forming a bevel gear on the first gear 61, the second gear 62 can be omitted. Become.

In the above embodiment, guide plates may be provided on both side edges of the raw material receiving plate 2 so as to sandwich the raw material wood W therebetween. By doing so, the lateral swing of the raw material wood W moving upward on the raw material receiving plate 2 is prevented, and the raw material wood W is reliably fed toward the downstream side.

[0071]

As described in detail above, the apparatus for manufacturing a laminated lumber strand according to claim 1 of the present invention is provided with an introducing section for introducing raw material wood, a cutting section for cutting the introduced raw material wood, and a cutting section. And a discharge unit configured to discharge the formed strand.The introduction unit is provided with a feeding mechanism for intermittently feeding the raw material wood, and the cutting unit is stopped in synchronization with the intermittent feeding. Sometimes a cutting mechanism for press cutting raw material wood is provided, and the discharging section is provided with discharging means for transferring and discharging the obtained strand, so that the raw material wood supplied to the introducing section is fed. A mechanism intermittently feeds the cutting portion, and in the cutting portion, the cutting mechanism press-cuts at a stop in synchronization with the intermittent feeding to obtain strands in sequence. The strands are sequentially discharged to the next step by the discharging means of the discharging section.

As described above, since the strands are obtained from the raw material wood sequentially fed to the cutting means by the feeding mechanism by the press cutting processing by the cutting mechanism, the conventional vertical tearing or pressure division by the rollers is performed. Compared with the conventional strand obtained by the, the strand obtained by the device of the present invention, the cut surface is a uniform coplanar, as a result, the application of adhesive to the strand surface is reliable and uniform. It is carried out and is extremely effective in obtaining a homogeneous laminated wood.

According to the apparatus for producing a strand for laminated wood of the above-mentioned claim 2, the raw material wood supplied onto the pedestal of the feeding mechanism is on the pedestal by driving the sliding contact belt slidingly contacting the upper part. Is transported to the downstream side, and reaches a pair of upper and lower pressing nip rollers provided at the downstream end. And
The raw material wood that has reached the pressing and nipping rollers is intermittently driven to be sent to the cutting section while being bitten between the rollers when being driven, and is prevented from being sent to the cutting section when the driving is stopped. It

While the pressing and pinching roller is not driven, the sliding contact belt slips around the raw material wood and circulates, so that the raw material wood is pressed against the pressing and pinching roller by this orbit, and the next pressing and pinching roller is pressed. When the rollers are driven, the raw material wood is again caught between the rollers and sent to the cutting section. Therefore, the raw wood is sequentially and intermittently supplied to the cutting portion by the intermittent drive of the pressing and pinching rollers.

As described above, by simply setting the raw material wood on the pedestal, the raw material wood is cut at the cutting portion while the timing is automatically adjusted by the circular drive of the sliding contact belt and the intermittent driving of the pressing and sandwiching member. Since it is sent to the core, the strand manufacturing work is facilitated, which is convenient for reducing the working cost.

According to the apparatus for producing a laminated lumber strand according to the third aspect, the raw wood fed to the cutting mechanism is positioned on the blade abutment table, and in this state, the raw wood is lowered by driving the driving means. The cutting blade held by the cutting blade holding member is cut to obtain a strand. In this way, since the strand is manufactured by cutting with the cutting blade,
The obtained strand has a uniform cut surface in the same plane, and the strand can be used as a material for obtaining a highly rigid and homogeneous laminated material.

According to the apparatus for producing a laminated strand of claim 4, the strand obtained by the cutting means is
In the discharging means, it is placed in a bridged state on the two belt-like belts which are driven to rotate by the drive of the driving means, is transported and sent out. Therefore, the defective strands having insufficient dimensions or broken state are dropped from the two cord-shaped belts, and the defective products are automatically sorted during the transfer by the belts, which is convenient for quality control.

[Brief description of drawings]

FIG. 1 is a process drawing showing an example of a method for manufacturing laminated wood using a strand according to the present invention.

FIG. 2 is a perspective view showing an example of an apparatus for manufacturing a strand for laminated wood according to the present invention.

FIG. 3 is an explanatory view of a cross-sectional side view of the manufacturing apparatus in FIG.

FIG. 4 is an explanatory diagram for explaining the operation of the feeding mechanism and the cutting mechanism, and shows a state immediately before the raw material wood is fed to the cutting unit.

FIG. 5 is an explanatory diagram for explaining the operation of the feeding mechanism and the cutting mechanism, showing a state in which the raw material wood has been fed into the cutting unit.

FIG. 6 is an explanatory view for explaining the operation of the feeding mechanism and the cutting mechanism, and shows a state in which the raw material wood fed to the cutting unit is cut.

FIG. 7 is an explanatory diagram for explaining the operation of the feeding mechanism and the cutting mechanism, showing a state immediately after the strand is manufactured in the cutting portion.

FIG. 8 is a side sectional view showing another example of the pressing nip roller.

[Explanation of symbols]

 X introduction part Y cutting part Z discharge part 1 strand manufacturing device 10 gate structure structure 11 frame 12 pedestal 13 weir part 14 pillar 15 guide plate 16 bearing 2 raw material receiving plate 21 wood holding gap 22 roller contact space 3 feeding mechanism 31 Sliding Contact Belt 31a Sending Belt 32 First Pulley 33 Second Pulley 34 First Drive Motor 35 Chain 4,4a Pressing and Holding Roller 41 Upper Roller 41a Second Upper Roller 41b Rotating Arm 42 Lower Roller 43 Strut 44 Crosslinking Plate 45 Screw shaft 46 Pressing bearing 47 Coil spring 48 Upper roller support shaft 49 Lower roller support shaft 5 Cutting mechanism 50 Blade up-and-down moving mechanism 51 Cutting blade holding member 52 Cutting blade 52a Guide member 52b Through hole 53 Blade contact base 54 Second Drive motor 55 Rotating shaft 56 Large pulley 57 Communication belt 58 Link rod 6 Same Stage mechanism 61 First gear 62 Second gear 63 Third gear 64 Connecting rod 7 Roller rotating mechanism 71 Claw member 72 Claw gear 73 Claw gear holding disk 8 Ejection means 81 Chute 82 String belt 83 Third drive motor 84 Belt support plate 85 Drive Belt 86 Pulley W Raw Wood W1 Strand

Claims (4)

[Claims] 1. An apparatus for producing a strand for laminated wood, which is for producing a strand by sequentially cutting a plate-shaped raw material wood in the width direction, the introduction section for introducing the raw material wood, and the introduced raw material wood. The cutting unit for cutting and a discharging unit for discharging the strand formed by cutting are provided, and the introducing unit is provided with a feeding mechanism for intermittently feeding the raw wood toward the cutting unit. The cutting unit is provided with a cutting mechanism that press-cuts the raw material wood at the time of stop in synchronization with the intermittent feeding of the introduction unit, and the discharging unit is provided with discharging means for transferring and discharging the strand obtained by the cutting. An apparatus for manufacturing a strand for laminated wood, which is characterized in that 2. The feeding mechanism is provided with a pedestal for placing a raw material wood, the downstream side of which faces the cutting portion, and an upper portion of the pedestal in parallel with the pedestal from the upstream side to the downstream side. ,
And a sliding contact belt for transferring the raw wood on the cradle to the downstream side, and a pressing and pinching roller provided at the downstream end of the cradle and consisting of a pair of upper and lower rollers for pressing and pinching the raw wood. The nipping roller is configured such that at least one of the pair of rollers is intermittently driven around the axis to forcibly supply the raw material wood that is pressed and nipped to the cutting portion, and the driving of the roller member. The apparatus for producing a strand for laminated wood according to claim 1, wherein the sliding contact belt is frictionally set so as to slip on the raw material wood and circulate during the stop. 3. The cutting mechanism, wherein a plurality of cutting blades extending in a width direction are provided on a lower end surface of the cutting mechanism, and the cutting blade holding member is moved up and down by driving of a driving means, and the cutting blade holding member is in the lowest position. The cutting blade comprises a blade abutment table against which the cutting edge of the cutting blade abuts, and the blade abutment table is characterized in that the raw material wood fed from the introduction portion is positioned on the blade abutment table. An apparatus for manufacturing a strand for laminated wood according to claim 1 or 2. 4. The discharging means is constituted by two cord-shaped belts that are provided in parallel from the upstream side to the downstream side, which are driven to rotate by the driving of the driving means. An apparatus for manufacturing a strand for laminated wood according to any one of 1 to 3.