JPH01255501A - Manufacturing device for continuous laminated material using rectangular veneer - Google Patents

Abstract

PURPOSE:To manufacture a continuous laminated material of whole quantity rectangular veneer by cutting both ends of face and back boards and cores fed from a first and second veneer feeding machines into oblique scarfs in contrast and also cutting both ends of crossbands fed from a third veneer feeding machine into given sizes. CONSTITUTION:First and second veneer feeding machines 6a and 6b are disposed in a manner that rectangular face and back boards 1a and 1b with the sides in the fiber direction approximately two times as long as the sides in the crossing direction and a number of cores 2 are respectively fed in the fiber direction, and a scarf machine 8 cuts scarf on an oblique surface S. A third veneer feeding machine 6c is disposed on the side of a roll conveyor 9 and the like in a manner that rectangular crossbands 3a and 3b with the sides in the fiber direction shorter by approximately one-half than the sides in the crossing direction forming a crossband are fed in the fiber direction, and the both ends of a double saw 10 is provided in the given sizes. A veneer transfer jointing machine 12 is disposed in a manner that the crossbands 3a and 3b can be bonded with the face and back boards 1a and 1b and cores 2.

Description

Detailed Description of the Invention ((a) Industrial Application Field The present invention relates to front and back plates and a core plate which are cut into a scarf with a slope with contrasting wood grains, and whose both end faces are cut to predetermined dimensions. The front and back surfaces of the core board are laminated and bonded together in a staggered manner, with adhesive applied to the top surface of the back plate, the core board, and the top surface of the core board, and the top plate to which no adhesive is applied. Manufacture of a continuous laminated material made of veneer laminated material, commonly known as LVB (laminated veneer board), in which a board and a number of core plates are attached parallel to each other, and the core plates are attached orthogonally to the upper and lower layers. The present invention relates to an apparatus for manufacturing continuous laminated materials, and in particular to an apparatus for manufacturing continuous laminated materials using rectangular veneers as raw material veneers.

(2) Prior art A manufacturing device for a continuous laminate consisting of a veneer laminate (LVB) in which the front and back plates and a number of core plates are attached parallel to each other, and the core plates are attached orthogonally to the upper and lower layers, according to the prior art. Among them, regarding the manufacturing apparatus of continuous lamination H using a rectangular veneer having a shape in which one side in the fiber direction and one side in the orthogonal direction are approximately equal, for example, Japanese Patent Application Laid-Open No. 189101/1989 and Japanese Patent Application Laid-Open No. It is disclosed in Japanese Patent No. 189102/1982 and is well known.Also, a rectangular veneer whose front and back plates and core plate are made of a rectangular veneer whose side in the NJ & fiber direction is approximately twice as long as one side in the orthogonal direction is known. Laminated veneer material with only parallel layers, so-called LVL
(Laminated veneer lumber) Continuous laminated material 1! Regarding manufacturing equipment, for example, Patent No. 98253
No. 5 (Special Publication No. 54-14641) and patent application published in 1973.
It is disclosed in No. 9-500126 and the like and is publicly known.

Problems to be solved by the invention However, this type of veneer laminated material (LVB) in which the front and back plates and a number of core plates of the conventional device are attached parallel to each other, and the core plates are attached orthogonally to the upper and lower layers. ), the raw material veneer must have a rectangular shape in which one side in the fiber direction and one side in the orthogonal direction are approximately equal, and The use of a rectangular veneer whose one side is about twice as long as the one orthogonal side has been considered impracticable, especially in the construction of the core plate, which is inserted orthogonally into the upper and lower layers.

Furthermore, even in the case of continuous laminated materials made of veneer laminates (LvL) that use the above-mentioned rectangular veneers for the front and back plates and the core plate, the method and means of constructing rectangular veneers of the same shape that are inserted orthogonally into the upper and lower layers. has not been established at all, and in the so-called LVL line, L
Since it was considered impractical to produce VBs, the device of the present invention solves the above-mentioned disadvantages of the conventional device by attaching the front and back plates and a large number of core plates in parallel.1.
In addition, since all rectangular veneers are applied to the manufacturing equipment for continuous laminates made of this type of veneer laminate (LVB) in which the core board is orthogonally attached to the upper and lower layers, one side in the fiber direction is in the orthogonal direction. A rectangular veneer with a shape that is about twice as long as one side can be used for the front and back plates and the core plate, and a rectangular veneer with a shape that is about half shorter than one side in the fiber direction can be used for the core. The present invention aims to provide a new continuous laminated material manufacturing device that can be used for plates and can optionally produce LVL on an LVB line.

Ω Means for solving the problem The raw material veneer to which the apparatus of the present invention is applied is a rectangular veneer having the following shape.

1-a) Front and back plates and core plate One side in the fiber direction is one side in the perpendicular direction. A rectangular veneer approximately twice as long as the 1-b) Soe core board One side in the fiber direction is one side in the perpendicular direction. A rectangular veneer that is approximately one-half shorter than ゛.

The device of the present invention is constituted by a series of mechanisms as follows.

2-a) First and second veneer feeders each capable of feeding front and back plates and a core plate in the fiber direction.

? -b) A third device equipped with a device that can feed the core plate in the direction of the fibers.
veneer feeding machine.

2-C) A scarf machine capable of cutting both ends of the front and back boards and the core board supplied from the first and second veneer supply machines into scarves with contrasting slopes.

2-d) A double saw that is capable of cutting both end surfaces of the core board supplied from the third veneer supply machine into predetermined dimensions.

2-e) Relay the conveyance of the front and back plates and the core plate carried out in the fiber direction from the scarf machine as they are, and make the conveyance direction of the crimp core plate carried out in the fiber direction from the double saw at right angles. This is a veneer conveyance repeater that is capable of converting the fibers and relaying the conveyance in a direction perpendicular to the fiber direction.

2-[) Said veneer transporting II! Spreader-6 2-g) A spreader with adhesive applied to the upper surfaces of the back plate, core plate, and front core plate to be carried out from the machine, and a device that allows the top plate to pass through without applying adhesive. The front and back plates, core plates, and counter core plates carried out from the spreader are sequentially supplied to the assembly area by a ring roll conveyor, etc., and the reference point hX of the front and back plates, core plates, and counter core plates supplied to the assembly area is A shape recognition device is used to measure the conveyance deviation of each sheet, and a transfer robot sequentially transfers the front and back plates, core plates, and cross-core plates from the assembly area to the belt conveyor in the stacking area. The stop error during the duct operation of the belt conveyor supplying to the thermopressure device is measured each time by the conveyance amount detection device, and the transfer robot shifts and overlaps the front and back plates, the core plate, and the counter core plate based on both measurement signals. A veneer assembly station that can correct positional deviations of 1@ each time.

(E) Function An example of the LVB type continuous laminated material produced by the apparatus of the present invention is shown in Figs. The board 2 is cut by a scarf machine into a scarf with a slope S having contrasting edges in the fiber direction, for example, into a scarf with a slope S about 4 to 8 times the board thickness t, and this cutting process increases the length l.
and the structure dimensions (J!-3) are determined at the same time. In addition, the front and back plates 1a are usually placed near the second layer of the upper and lower layers, respectively.

The core plates 3a and 3b are inserted as cross punts in which the fiber direction is orthogonal to the core plate 1b and the core plate 2, so that both end surfaces perpendicular to the fiber direction have a predetermined dimension, for example, the front and back plates 1a, l.
b and the overall length l of the core plate 2 minus the slope S of the scarf (J2-3), which is cut in parallel with a double saw. Furthermore, when the front and back plates 1a, lb and the large number of core plates 2 and the supporting core plates 3a, 3b are staggered and overlapped in a stepped manner, the interval P is, for example, about 20 to 30 times the plate thickness t.
The transfer robot is staged in advance according to the production plan so that it can be set arbitrarily.

Furthermore, the continuous laminated material that can be produced by the apparatus of the present invention is
In addition to the LVB type with cross-punches shown in Figure 7, by suspending the supply of the core plates 3a and 3b during production, it is possible to attach all of the front and back plates 1a and 1b and a large number of core plates 2 in parallel. Optionally, continuous laminates of the usual LVL type consisting of

Furthermore, the continuous laminated material that can be produced by the apparatus of the present invention is
Front and back plates 1a, which require relatively high quality materials;
The first and second veneer feeders individually control the supply of veneer lb and core plate 2, which can be of relatively low quality, except when the core plate 2 is produced manually by dividing the material and thickness. Of course, it is possible to omit or suspend either side of the veneer, but if we ignore the production capacity and preparation conditions of the raw material veneer, it is possible to replace production with the rectangular raw material veneer with production using the conventional rectangular veneer. Of course, it can be changed as is.

@Example An example of the implementation of the apparatus of the present invention is shown in FIGS. 1 to 5. One side in the dark blue direction is about 2 times larger than the one side in the orthogonal direction.
Transfer robots 5a and 5 are equipped with suction heads 4a and 4b, for example, as shown in the figure, so as to be able to supply rectangular front and back plates 1a and 'lb, which are twice as long, and a large number of core plates 2, respectively, in the fiber direction.
The first and second veneer feeders 5a, 5b consisting of veneer b, etc. are arranged on the side of the roll conveyor 7, etc. to supply the rectangular front and back plates 1a, 1b and a large number of core plates to the scarf machine 8 of the next stage. 2 are supplied sequentially from the fiber direction according to the construction order. The scarf machine 8 has front and back plates 1 as illustrated in FIG.
A pair of cutters are used to cut both ends of the core plates 2 in the fiber direction of a and lb into scarves with contrasting slopes S, for example, into scarves with slopes S about 4 to 8 times the thickness t. The cutter blocks 9a, 9b are arranged so as to be able to reciprocate along an inclined sliding movement of variable angles, and the cutter blocks 9a, 9b are
The total length 1 in the fiber direction of the front and back plates 1a, lb and a large number of core plates 2 and the structure dimension (j!-8) obtained by subtracting the slope S from the length 1 of the front and back plates 1a, lb and the many core plates 2 are simultaneously determined by the cutting process, and then the structural dimensions (j!-8) are determined from the fiber direction. It is carried out to the next stage.

In addition, rectangular core plates 3a, 3 with cross punts in which one side in the fiber direction is about half shorter than one side in the orthogonal direction.
For example, as shown in the figure, a third veneer feeder 6C consisting of a transfer robot 50 equipped with a suction head 4C is arranged on the side of the roll conveyor 9 so as to be able to feed the veneer in the direction of the fibers. The rectangular core plates 3a and 3b are sequentially supplied to the next-stage double saw 10 from the direction of the fibers according to the construction order. As illustrated in FIG. 3, the double saw 10 has front and back plates 1a, each of which is determined by the scarf machine 8, for example, so that both end surfaces of the core plates 3a and 3b, which are perpendicular to the fiber direction, have predetermined dimensions.

For example, a pair of circular saws 11a can be cut according to the structure dimension (j!-8) obtained by subtracting the slope S of the scarf from the total length 1 of the core plate 2 and 1b.

11b, etc., are cut in two oppositely so as to freely determine the width, and then transported to the next stage from the fiber direction.

Next, in contrast to the front and back plates 1a, 1b and a large number of core plates 2, which are carried out in the fiber direction from the scarf machine 8, the crimp core plate 3a is carried out in the fiber direction from the double saw 10.

3b is placed in the conveying direction of the front and back plates 1a, lb on the scarf machine 8 side and a large number of core plates 2, and the scarf machine 8 and double saw 10 are arranged at right angles so that the core plates 3a, 3b can merge. A veneer transport repeater 12 is installed at the location.

As illustrated in FIG. 4, the veneer transfer repeater 12 uses a pinch roller 13a to move the rectangular front and back plates 1a and ib and the core plate 2 carried out in the fiber direction from the scarf machine 8 in the previous stage.
The rectangular crimp core boards 3a and 3b, which are similarly carried out in the fiber direction from the double saw 10 in the previous stage, are pulled onto the belt conveyor 14 and maintained in the conveying direction, and the front and back boards 1a, 1b and core plate 2
In the same way as in the case of , the fibers are pulled onto the belt conveyor 14, and in order to make the conveyance direction the same for the front and back plates 1a, 1b and the core plate 2, this is converted to a right angle and the conveyance direction is perpendicular to the fiber direction. It is equipped to maintain transportation.

The paddy is carried out from the veneer transport relay machine 12. ・On the upper surfaces of the rectangular front and back plates 1a and 1b, the core plate 2, and the sock core plates 3a and 3b, glue is attached to the entire upper surface of the paddy except for the top plate 1a. A spreader 15 is provided in series so that the agent can be applied. The spreader 15, as illustrated in FIG.
An adhesive such as urea resin is applied from the upper surface of the core plates 3a and 3b by a spray nozzle 17 or an alternative coating device such as an extruder or a roll coater, and the arrival of the top plate 1a. Sometimes the coating operation is temporarily stopped and the device is installed so as not to allow free passage.

Next, the top plate 1a, which is not coated with adhesive, and the back plate 1b, which is coated with adhesive, are conveyed through the spreader 15 and on the ring roll conveyor 16, etc.
When the core plate 2 and the supporting core plates 3a and 3b arrive at a predetermined assembly location in sequence according to the assembly order, their conveyance is stopped each time, and the conveyance deviation from the reference point in a stationary state at the assembly location is measured. be done. In this case, the measurement of the conveyance deviation of the front and back plates 1a, lb, core plate 2, and facing core plates 3a, 3b in a stationary state when they are pulled into the assembly location is carried out at the front and sides of the ring roll conveyor 16, etc. Shape recognition devices 18a, 18b, and 18c consisting of scale cylinders installed near reference points 1 and 2, or alternatively television cameras, line sensors, etc., detect conveyance deviations from each reference point and based on the conveyance deviations. Conveyance angle deviations, original veneer cutting errors, etc. are measured in a composite manner, and the measurement signals are transferred from a predetermined location on the ring roll conveyor 16 to a belt conveyor stretched for conveyance to the thermopressing device 19. The computer 22 of the transfer robot 21 in the assembly station 24 transfers the front and back plates 1a and 1b, the core plate 2, and the facing core plates 3a and 3b in a stacked manner according to the assembly order to a predetermined stacking location on the assembly station 20. transmitted. Furthermore, the computer 22 also uses an encoder, etc. to determine the stoppage error of the belt conveyor 20 when the intermediate products 25 are carried into the container of the thermopressure device 19 from a predetermined stacking location by the belt conveyor 20 in a staggered manner. The transfer robot controls the function of the assembly station 24 by means of the measurement signals which are measured each time by the transport amount detection device 23 and the measurement signals are also transmitted to the computer 22. 21, when the front and back plates 1a and 1b, the core plate 2, and the supporting core plates 3a and 3b are shifted and stacked in a stepped manner, that is, the position shift when they are shifted and stacked due to the conveyance shift, angular shift, and stop error. The device is designed to be able to perform corrections all at once.

Therefore, the belt conveyor 20 of said assembly station 24
Rectangular front and back plates 1a stacked on top in a staggered manner
, 1b, a large number of core plates 2, and core plates 3a and 3b, the intermediate product 25 is a rectangular product in which one side in the fiber direction is about twice as long as the one side in the perpendicular direction, as illustrated in FIGS. 6 and 7. The front and back plates 1a, 1b and a number of core plates 2 are attached in parallel, and the rectangular core plates 3a, 3b, each of which has one side in the fiber direction that is about half shorter than the one in the orthogonal direction, are attached orthogonally to the upper and lower layers. It was possible to produce a continuous laminate made of laminate veneer (LVB) using total loss rectangular veneer as raw material.

In the figure, 26 is a suction head mounted on the transfer robot 21 for assembly, 27 is a transfer robot 5a, 5b for supply,
5c is a computer which predetermines the assembly order of the front and back plates ia, 1b, the core plate 2, and the supporting core plates 3a, 3b.

(G) Effects of the Invention As described above, the device of the present invention has rectangular front and back plates in which one side in the fiber direction is approximately twice as long as the one side in the perpendicular direction, and a large number of core plates attached in parallel. A continuous laminated material made of a veneer laminated material (LVB) in which a rectangular core board that is about one-half shorter than one side in the orthogonal direction is attached perpendicularly to the upper and lower layers, is made of a total loss rectangular veneer. Since this manufacturing equipment is configured to be able to produce as follows, unlike conventional LVB manufacturing equipment, one single plate of the I-claw has a rectangular shape in which one side in the fiber direction and one side in the orthogonal direction are approximately equal. Conventional equipment was limited to rectangular veneers, which do not require special veneers, and are inserted orthogonally into the upper and lower layers, whereas the present invention can be used for normal plywood production. It is possible to use the rectangular veneer used for the core board of general-purpose boards, which is easily available in the process and has one side in the fiber direction that is about half shorter than the one side in the orthogonal direction, as the core board. When using the device of the present invention, both LVB products and LVL products can be produced on the same production line, and L
Compared to VB and LVL production, LVB and LVL production uses rectangular veneers with a large area that is approximately twice as large, and has excellent features not found in conventional equipment, such as the ability to significantly improve line production capacity. It has the following.

[Brief explanation of the drawing]

The figures show an example of the implementation of the present invention, in which Fig. 1 is a plan view showing the arrangement of the entire device, Fig. 2 is a side view showing the main parts of the scarf machine, and Fig. 3 is the main parts of the double saw. Fig. 4 is a plan view without showing the main parts of the veneer conveying repeater;
FIG. 5 is a side view showing the main parts of the spreader, FIG. 6 is a side view showing the tip of the continuous laminated material, and FIG. 7 is a plan view. 1a...Top plate, 1b...Back plate, 2...Core plate, 3a
. 3b... Sopping core board, 6a... First veneer feeder, 6
b...Second veneer feeder, 6C...Third veneer feeder, 8...Scarf machine, 10...Double saw,
12...Single plate conveyance repeater, 15...Spreader-1
18a, 18b, 18cm...shape recognition device, 19...
- Heat pressure device, 20... Belt conveyor, 21... Transfer robot, 23... Conveyance amount detection device, 24... Assembly station. Patent applicant: Hashimoto Electric Industry Co., Ltd.

Claims (1)

[Claims] First and second veneer feeders each having a rectangular front and back plate and a core plate each having one side in the fiber direction that is approximately twice as long as one side in the perpendicular direction thereof, each of which is capable of feeding the other in the fiber direction, and one side in the fiber direction. is supplied from a third veneer feeder capable of feeding a rectangular core board in the direction of the fibers, which is about one-half shorter than one side in the orthogonal direction, and the first and second veneer feeders. a scarf machine capable of cutting both the front and back plates and the core plate into scarves with contrasting slopes;
A double saw is equipped with a device capable of cutting both end faces of the wafer core plate supplied from the veneer feeder into a predetermined size, and the front and back plates and core plate, which are carried out in the fiber direction from the scarf machine, are cut in the fiber direction as they are. a veneer conveyance relay machine that is capable of relaying the conveyance thereof, converting the conveyance direction of the core plate carried out from the double saw in the fiber direction to a right angle, and relaying the conveyance in a direction orthogonal to the fiber direction; An adhesive is applied to the upper surfaces of the back plate, the core plate, and the front core plate to be carried out from the veneer conveyance repeater, and a spreader is provided so that the top plate can pass through without being coated with adhesive; The front and back plates, core plates, and counter core plates carried out from the spreader are sequentially supplied to the assembly area by a ring roll conveyor, etc., and the front and back plates, core plates, and counter core plates that are supplied to the assembly area are separated from the reference point. Conveyance deviations are measured each time using a shape recognition device, and a transfer robot sequentially transfers the front and back plates, core plates, and cross-core plates from the assembly area onto the belt conveyor in the stacking area, while supplying them to the thermopressing equipment by duct operation. The stop error during the duct operation of the belt conveyor is measured each time by the conveyance amount detection device, and the positional deviation when the transfer robot shifts and overlaps the front and back plates, core plate, and backing core plate is detected using both measurement signals. 1. An apparatus for manufacturing continuous laminated material using rectangular veneers, characterized by comprising a veneer assembly station that can be corrected each time.