JPH053963B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention provides a parallel-laminated veneer in which both edges of a veneer are cut into contrasting scarf slopes, and a veneer in which both ends of the veneer are cut in parallel. A method for aligning veneer veneers in the manufacturing process of a veneer laminate, commonly known as LVL or LVB, which is a veneer laminate made by laminating and bonding processed orthogonally laminated veneers in a staggered manner, and This is related to the device.

[Prior Art] Conventional means for aligning veneer veneers in the process of manufacturing veneer laminates in which veneer veneers are processed while being conveyed in the fiber direction include, for example, the veneer veneer alignment method and method disclosed in JP-A-1-172155. Aligning the conveyance of veneer veneers that are conveyed in the fiber direction, mainly targeting parallel laminated veneers in which both ends of the veneer veneers are cut into contrasting scarf slopes, as disclosed in the equipment etc. There has been a method and apparatus for arranging veneer veneers in which the veneer is stopped once at a location, extruded alternately left and right in a direction orthogonal to the fiber direction to a predetermined conveyance line, and after correcting the conveyance curve, the conveyance is restarted. However, this type of veneer veneer alignment method and device requires orthogonally laminated veneers with both end faces cut parallel to each other, which is essential for manufacturing veneer laminates such as LVB that corrects the curvature in the width direction of the product. There is no method or apparatus for arranging veneer veneers that can simultaneously target both of the parallel veneers whose ends are cut into contrasting scarf slopes.

[Problem to be solved by the invention]

The method and device for arranging veneer veneers, which mainly target parallel veneer veneers in which both ends of the veneer veneer are cut into contrasting scarf slopes, according to the above-mentioned conventional technology, can be applied to LVB that corrects the bending in the width direction of the product. When applying it to both parallel and orthogonal veneers at the same time, which is essential for the production of laminated veneers such as Only by aligning the end faces, the perpendicularity between the end face and the butt end is formed accurately and the alignment function is satisfied, but in the case of the other orthogonally laminated veneer, only the parallel cutting of both end faces is done and both ends are not processed in any way. If only the end faces are aligned, the perpendicularity between the end face and the butt end will not be formed at all, and in many cases, both end faces and both ends will be formed into a parallelogram, resulting in saw-blade-like unevenness on the side of the product.
There was a high risk of producing missing products that were less than the prescribed width. Therefore, the present invention aims to eliminate the drawbacks of the prior art veneer veneer alignment methods and devices mainly aimed at parallel-laminated veneers.
The object of the present invention is to provide a new method and device for arranging veneer veneers that can function as both parallel-laminated veneers and orthogonally-laminated veneers in the same conveyance line.

[Means to solve the problem]

In order to achieve the above object, the present invention involves a scarf cutting process in which a veneer veneer is conveyed in the fiber direction and both ends of the veneer are cut into contrasting scarf slopes to prepare a parallel laminated veneer, and a veneer veneer is also The following alignment means is used in the manufacturing process of a veneer laminated material in which a veneer laminated material is manufactured by arranging the veneer laminated material in a straight line, and a cross band cutting step in which the veneer is transported in the fiber direction and its both end faces are cut parallel to each other to prepare an orthogonally laminated veneer. This is the method of aligning the applied plywood veneers.

a. A first alignment means that aligns one end surface of the veneer veneer parallel to the conveying direction on the carry-in side of the scarf cutting process for preparing parallel veneer veneers.

b. A second alignment means for aligning one end of the veneer veneer in a direction orthogonal to the conveying direction on the carry-in side of the cross-band cutting process for preparing orthogonally laminated veneers.

c. A third alignment means for aligning one side end surface of the veneer veneer parallel to the conveyance direction immediately before the second alignment means.

Furthermore, in order to carry out the method for arranging veneer veneers, the present invention is a veneer veneer arranging apparatus to which the following arranging means is applied.

d A first roll conveyor that conveys the veneer veneer in the fiber direction.

e. A pusher installed on the side of the first roll conveyor.

f. A scarf machine connected to the first roll conveyor.

g. A second roll conveyor disposed between the scarf machine and the double saw.

h A stopper installed in front of the second roll conveyor.

i. A pusher attached to the rear side of the second roll conveyor.

[Effect]

The veneer laminated materials such as LVL or LVB related to the veneer veneer alignment method and device of the present invention are
As shown in Figure 5, an example of the product is shown in which a scarf machine consisting of a planer etc. is used to create contrasting scarf slopes on both sides of the veneer veneer, for example, with a thickness of t.
Parallel laminated veneer A whose fiber direction is adjusted to a predetermined length by cutting into a scarf slope S that is approximately 4 to 8 times the size of the scarf, and both end surfaces of the veneer veneer A are parallel-laminated using a double saw made of a circular saw or the like. By cutting to a predetermined width -S in the direction orthogonal to the fiber direction,
The parallel laminated veneer A was used as the front and back layers and the intermediate layer, and the orthogonal laminated veneer B was used as the second layer on the front and back or as an appropriate intermediate layer with a thickness t.
It is a laminated veneer material C such as LVL or LVB that is produced by laminating and bonding them together with a pitch P of about 30 to 70 times, and is usually made by stacking the parallel veneers A in a staggered manner. The orthogonally laminated veneers B are attached to each other in a continuous staggered manner using an automatic assembly device installed in a subsequent process, a continuous hot press, etc., so that the veneers B are joined at a scarf joint, and the orthogonally laminated veneers B are joined at a butt joint in a staggered manner. The intermediate product is then cut into a predetermined length to produce a product.

Therefore, the present invention includes a scarf cutting process for preparing the parallel-laminated veneer A to a predetermined length, and a cross-band cutting process for preparing the orthogonally-laminated veneer B to a predetermined width (-S) in a straight line. A carry-in side of a scarf machine that first prepares the parallel-laminated veneers A to a predetermined length so that both the parallel-laminated veneers A and the orthogonally-laminated veneers B can be aligned at once in the same conveyance line. A first alignment means consisting of a roll conveyor and a pusher is provided to align one side end surface of the veneer veneer parallel to the conveying direction, and then a double saw is installed to prepare the orthogonally laminated veneer B to a predetermined width (-S). A second aligning means consisting of a roll conveyor and a stopper for aligning one end of the plywood veneer in a direction perpendicular to the conveying direction is provided on the carry-in side, and if necessary, the second aligning means may be further arranged. A method and apparatus for aligning veneer veneers in a manufacturing process of laminated veneer material, which is configured to include a third alignment means consisting of a roll conveyor and a pusher for aligning one side end surface of the veneer veneers parallel to the conveying direction immediately before the veneer veneers. It is.

Therefore, when the veneer veneers that are sequentially fed into the same conveyance line are parallel-laminated veneers A according to the assembly order, the veneer veneers that are fed and conveyed by the first alignment means are Since the conveyance curve of the veneer A is corrected and the veneer A is fed into the scarf machine in a posture in which the conveyance direction and the end face line are accurately aligned, the perpendicularity between the end face line and the end face line of the parallel laminated veneer A is established. Next, also in the case of the orthogonally laminated veneer B being fed into the same conveyance line, the conveyance bending of the veneer veneer is caused by the feeding and conveyance by the second alignment means or the second and third alignment means. Then, both the angular defects of both end faces and both ends of the plywood veneer that existed from the beginning are corrected, and finally the veneer is placed on a double saw with the conveyance direction and the end line aligned to be exactly perpendicular to each other. Therefore, the perpendicularity between the end line and the end face line of the orthogonally laminated veneer B is also established. In other words, the parallel laminated veneer A and the orthogonal laminated veneer A, which are sequentially fed into the same conveyance line, are also established. This makes it possible to provide a method and device for arranging veneer veneers that function in both cases.

〔Example〕

To explain the present invention with reference to the embodiment shown in FIGS. 1 and 2, there is a first roll conveyor 1 that conveys the veneer veneer V1 supplied from the previous stage process in the fiber direction, and a system connected to the first roll conveyor 1. A scarf machine 3 has two rotary blades 3a and 3b such as planers facing each other at a predetermined interval, and a veneer veneer V2 connected to the scarf machine 3 and supplied from the previous process
A second roll conveyor 5 conveys the fibers in the fiber direction.
A double saw 4, which is connected to the second roll conveyor 5 and has two rotary blades 4a and 4b such as circular saws facing each other at a predetermined interval, is arranged in a straight line, and the laminated veneer material is laminated in parallel. The scarf cutting process prepares board A to a predetermined length, and the orthogonally laminated veneer B is cut to a predetermined width (-
S) comprises a cross-band cutting step. A pusher 2 consisting of a parallel ruler 2a and an operating mechanism 2b such as an air cylinder is installed on the side of the first roll conveyor 1 arranged in the scarf cutting process, and the pusher 2 is installed to the side of the first roll conveyor 1 arranged in the scarf cutting process. One side end surface of the veneer V3 is
The parallel ruler 2a contacts the parallel ruler 2a and is aligned parallel to the transport direction. In addition, a stopper 6 consisting of a right angle ruler 6a and an operating mechanism 6b such as an air cylinder is installed in front of the second roll conveyor 5 arranged in the cross band cutting process, and the stopper 6 is installed to prepare the cross band veneer B. The end of one side of the veneer veneer V4 is brought into contact with the right angle ruler 6a of the stopper 6, and aligned at right angles to the direction orthogonal to the conveying direction. Next, all the veneer veneers V1 and V2 are supplied by the pusher 2 installed on the side of the first roll conveyor 1.
If there is a concern that there is insufficient cutting allowance for both end faces with the double saw due to the conveyance bending of the supplied veneer veneer V2 again due to long-distance conveyance, the second roll conveyor 5
A pusher 7 consisting of a parallel ruler 7a and an operating mechanism 7b such as an air cylinder may be attached to the front side of the veneer to correct the bending of the supplied veneer veneer V2 again during conveyance. .

〔Effect of the invention〕

Since the present invention is configured as described above, both ends are cut into contrasting scarf slopes, which is essential for manufacturing veneer laminated materials such as LVB that correct the bending in the width direction of the product. Parallel veneer and
Both orthogonally laminated veneers with both end faces cut parallel to each other can be processed at once using two or three alignment means each with different alignment directions using the same conveyance line. Therefore, this was the biggest drawback of the conventional method and device for aligning veneer veneers, which had an aligning function only in the parallel laminated veneers in which both ends of the veneer were cut into contrasting scarf slopes. , the end faces and ends of the orthogonally laminated veneer were formed into a parallelogram shape, resulting in saw blade-like unevenness on the side of the product, and there was a risk of producing missing products that were less than the specified width. According to the present invention, the side surfaces of the product are straight, and not only can the veneer yield for a given width be maintained at the highest level, but also the saw blade-like unevenness on the side surfaces can be avoided during the secondary processing of the product. This has resulted in excellent results such as increased work efficiency and a high product yield.

[Brief explanation of the drawing]

FIG. 1 is a plan view, FIG. 2 is a side view, FIG. 3 is a side view of the product, FIG. 4 is a perspective view of a parallel laminated veneer, and FIG. 5 is a perspective view of an orthogonally laminated veneer. 1, 5... Roll conveyor, 2, 7... Pusher, 3... Scarf machine, 4... Double saw, 6... Stopper, A... Parallel laminated veneer, B
...orthogonally laminated veneer, C...laminated veneer material.

Claims (1)

[Scope of Claims] 1 A scarf cutting process in which a veneer veneer is conveyed in the fiber direction and both edges thereof are cut into contrasting scarf slopes to prepare parallel laminated veneer A; In the manufacturing process of the veneer laminated material C, which is formed by arranging the veneer laminated material C in a straight line, cutting both end faces parallel to each other to prepare the orthogonally laminated veneer B, the parallel laminated veneer A is A first alignment means for aligning one side end surface of the veneer veneer parallel to the conveying direction on the carry-in side of the scarf cutting process to be prepared, and a first alignment means for aligning one side end surface of the veneer veneer parallel to the conveyance direction, and a veneer veneer on the carry-in side of the cross band cutting process to prepare the orthogonally laminated veneer B. A method for aligning veneer veneers, comprising: second aligning means for aligning one end of the wood in a direction orthogonal to the conveying direction. 2. The method for arranging veneer veneers according to claim 1, further comprising: a third arranging means for arranging one side end surface of the veneer veneer parallel to the conveyance direction immediately before the second arranging means. 3. A first roll conveyor 1 that conveys the veneer veneer in the fiber direction, a pusher 2 installed on the side of the first roll conveyor 1, and a scarf machine 3 connected to the first roll conveyor 1. , a veneer unit in the manufacturing process of a veneer laminated material consisting of a second roll conveyor 5 disposed between the scarf machine 3 and the double saw 4, and a stopper 6 installed in front of the second roll conveyor 5. Board alignment device. 4. The device for aligning veneer veneers in the manufacturing process of laminated veneer materials according to claim 3, further comprising a pusher 7 attached to the rear side of the second roll conveyor 5.