KR100983612B1 - The method of manufacture for glued multisquare timber and its products - Google Patents

Abstract

PURPOSE: A method of manufacturing a glued multi-square timber is provided improve intensity performance by laminating square timbers. CONSTITUTION: A method of manufacturing a glued multi-square timber is comprised of the steps: manufacturing a square timber in a first process(S110); drying the square timber in a second process(S120); cutting the square timer to have uniform width in a third process(S130); forming an uneven surface on the end of the square timber which is dried and cut and being joined in a fourth process(S140); and cutting the four sides of the square timber to have a certain width in a fifth process(S150).

Description

The method of manufacture for glued multisquare timber and its products}

The present invention relates to a method for manufacturing a multi-adhesive aggregate material and a multi-adhesive aggregate material obtained through the same. A method of manufacturing a multi-glue aggregated material which can produce large cross-section material by joining the regular angled material formed in multiple layers and multiples and improves the strength performance, and the multiple manufactured by the same method It relates to an adhesive aggregate material.

Recently, wood has been in the spotlight as a low-carbon green growth response material, but Korea's wood production is about 6-10% of the annual total demand, and most of the structural members used for wood construction are dependent on imported wood.

On the other hand, instead of increasing daily demand for wood, there is a movement to actively control forest damage in order to prevent global warming.

In addition to this reality, Korea has succeeded in forest reclamation, but neglected after management, most of the timbers that can be produced in the next 10 years are small diameter trees of about 12-18cm in diameter.

Of course, the recent thinning timber produced by forest gardening is mostly small-sized trees, and it is an immature material, and there are many short-cut materials and grain materials. Therefore, when used as a building material, the strength performance is low and the production yield is inefficient. It has been used as raw materials or firewood, or has been disposed of naturally.

On the other hand, to use thinning materials produced by forests, etc. as building materials, it was proposed in the Utility Model Registration No. 0334715. This relates to a laminated laminated board, in which three or more layers including a top layer and a backing layer are laminated so that timbers of a small hardwood cross each other, and the top and backing layers adhere two or more sides of the wood boards in their width direction. And a three-layer structure consisting of a cover plate layer, a middle plate layer, and a back plate layer, in which grains are alternately laminated.

By the way, it can be seen that the laminated laminated board material proposed in the registration utility model is a structure of a plywood laminated alternately of a top plate layer, a middle layer layer, and a backing layer of a predetermined thickness, such a plate plate layer, middle plate layer, The backing layer uses a board member, which is limited to a thickness of up to 5 cm, for easy drying.

However, due to the cross-lamination of sheet materials, the direction of patterns such as rings of wood is uneven, which hinders aesthetics, and it is still a problem that strength is insufficient to be used as structural materials such as pillars, beams, purlins, mourners, and rafters of wooden building structures. Have

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Accordingly, to solve these problems, an object of the present invention is to collect a small diameter of the small-necked wood thinning material is located in the center of the center and close to the center of the collection to the square material of the cross section (square) (square) The present invention provides a method for manufacturing a multi-adhesive aggregate material, which has been improved by multi-bonding to improve strength performance, and a multi-adhesive aggregate material produced by the same method.

In addition, another object of the present invention is a method of manufacturing a multi-adhesive aggregate material that can be used as a large cross-sectional structural member subjected to a large load of wooden buildings due to the low deformation and excellent strength performance, and a multi-adhesive aggregate material produced by such a manufacturing method In providing.

The present invention to achieve this object;
A first step of cutting a side surface of a predetermined distance with the center of the collection of the selected small diameter tree into a square member having a square cross section; A second step of drying the square shell to have a water content of 12% or less; A third step of cutting the four sides to have a uniform width in order to remove the shrinkage and deformation of the dried square material; A fourth step of forming a concave-convex surface in order to increase the contact area at the end of the dry cut corner material and applying a resin adhesive to longitudinal joining; A fifth step of cutting the four corners to have a uniform width in order to have a uniform surface; And a sixth step of laminating and joining the vertically-joined right-angle materials in multiples and multiples so that the collection is directed in the longitudinal direction, and post-processing the cross sections to form a circular shape.
In the sixth step, a plurality of vertically bonded square materials are stacked in a square, and a resin adhesive is applied to each of the cut surfaces to be bonded to each other, and a hollow portion is formed at the center thereof.

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The present invention also provides a multi-adhesive aggregate produced through the above process.

According to the present invention, in the manufacture of multi-adhesive aggregates using small-sized timbers, thin material having a square cross section including a circumference with less deformation and excellent strength performance, the collection is multi-layered in the longitudinal direction ( It can be used as a large cross-section structural material such as pillars and beams that require large loads of wood building materials due to its low deformation and excellent strength performance. Not only can the feeling of weight be felt as it is, but the manufacturing cost of the large cross-section structural material can also be greatly reduced.

In addition, when a multi-bonding composite material is manufactured by properly combining and combining the high-angle material and the low-angle material with high strength performance, it can be utilized as a large cross-section structural material of stable strength, and has the advantage of being manufactured in various standards and shapes.

1 is a flow chart of the manufacturing process of the multi-adhesive aggregate material according to the present invention.
Figure 2 is a view showing a thinner narrow material for processing a multi-bond adhesive material according to the present invention.
Figure 3 is a view showing for explaining the process of processing the small diameter material of the present invention to a square.
4 to 9 are diagrams illustrating various embodiments of a multi-adhesive aggregate formed by bonding a corner member according to the present invention.

With reference to the accompanying drawings, a method for manufacturing a multi-adhesive aggregate material and a multi-adhesive aggregate material obtained according to the present invention will be understood by the embodiments described in detail below.

Multi-adhesive aggregate material according to the present invention uses a small timber that is thinning timber produced by foresting, etc., as shown in Figure 1, the screening process for selecting a small size of a predetermined size (S100), using the selected small hardwood Square material sawing process (S110), drying step of the square material (S120), the step of cutting the four sides of the dried square material (S130), longitudinal bonding step (S140) of joining the ends of the square material, longitudinally bonded It is manufactured through a step (S150) of cutting a four sides (S150), a step (S160) of superimposing the vertically-bonded right angle material to be bonded, and additionally performs a step (S170) of an additional finishing process.

Hereinafter, the manufacturing process of the multi-adhesive aggregate material according to the present invention will be described in detail.

2 and 3, the diameter of the small diameter wood 100, which is a thin timber produced by foresting, is mostly 120-180 mm, and is short-cut material within 1.2 to 1.5 m for easy transportation. The curved material of a curved shape constantly mixes.

Therefore, the small diameter wood 100 selects the small diameter wood having the core 101, and is selected by a method such as excluding particularly the case of the severely curved curved material (S100).

At this time, the small tree 100 is natural that various wood, such as pine, larch, lychee pine, pine can be used.

The small lumber 100 selected as described above is primarily processed into a square material 200 having a square cross section by cutting using a known cutting device (not shown).

In this case, the small-necked tree 100 has a density close to the center of the collection 101 as well as a higher density than the outer part, less deformation, excellent strength performance, and a mature part that is strongly stable in the surface part. Has

Therefore, the center 101 of the small diameter wood 100 is located in the center (center) and cut so that the width of the cutting surface has a 105 ~ 160mm. In other words, by cutting one side of the small diameter wood 100 in the longitudinal direction, by repeating the process of cutting a predetermined distance from the collection by rotating the partially cut small wood by 90 °, the cross section is square and has a certain length It will be processed into a square shell (200).

At this time, in order to precisely process the small diameter wood, it is preferable to adjust the cutting position and distance by precisely adjusting the cutting center 101 with a laser pointer, and then cutting the zoom. Thus, the cut square material 200 has a small deformation and excellent strength performance as the center 101 is located at the center of the cross section.

Thus, the square shell 200 processed in the rectangular shape through the primary cutting process is dried so that the moisture content is 12% or less using a separate drying device (not shown).

At this time, the right angle member (200) is symmetrically arranged around the center of the symmetry is arranged less buckling or twisting, etc. On the other hand, when the right angle member (200) is dried, the cutting surface It is about 95 to 155mm wide.

Thus, the dried square shell 200 has a uniform width (eg, four-sided surface) by using a known cutting device (not shown) in order to remove shrinkage and deformation during the drying process. For example, to cut to have a 90 ~ 150mm. (S130)

Since the right angle member 200 which has passed through the step S130 may have a short length, the ends of the plurality of right angle members 200 are vertically bonded using a resin adhesive.

At this time, the concave-convex surface 210 is formed at the end of the corner member 200 in order to increase the contact area.

The regular angle material 200, which has been vertically bonded while passing through the process (S140), has a uniform slope using a known cutting device (not shown) to have a uniform surface. It will be cut to have a width (for example, 82 ~ 145mm) (S150).

The right angle member 200 having its surface processed has a predetermined width, and the right angle member 200 is laminated and bonded in multiple shapes and multiple layers in various shapes. Produces a multi-adhesive aggregate material (1) that can be used as a large structural material. (S160)

At this time, the degree of use for manufacturing the multi-adhesive aggregate material (1) is to use a plurality of right angle material (角 材) 200, the resin adhesive on the cutting surface (200a) of each right angle material (200) Apply and apply the corner materials 200 in a multi-layered and multi-layered manner so that the centrifugal 101 faces in the longitudinal direction, and join and dry them to complete the multi-adhesive aggregate 1. do.

Such a resin adhesive 110 is a known adhesive used as a structural adhesive of the aggregate or composite material because it has excellent adhesion performance and void filling properties, and is mainly used in airplanes, ships, and the like.

The multi-adhesive aggregate 1 produced through the bonding process using the above resin adhesive may be manufactured in various forms using a plurality of right angle members 200 as shown in FIGS. 4 to 9.

That is, according to Figure 4, by applying the resin adhesive 110 to the one side cutting surface (200a) of the two right angle members 200, by bonding and drying the two-layer adhesive rectangular multi-adhesive aggregate (1). In this case, it is possible to feel a beautiful pattern and weight sense of the wood due to the rings, such as by bonding a plurality of regular angle material 200.

Of course, as shown in FIG. 5, the three right angle members 200 are sequentially stacked, and a resin adhesive is applied to each of the cut surfaces 200a to be bonded to each other, followed by drying by drying. It will be prepared.

In addition, as shown in FIGS. 6 and 7, a plurality of right angle members 200 are stacked in a square, and a resin adhesive is applied to each of the cut surfaces 200a to be bonded to each other to bond and dry them, thereby having a predetermined thickness and a large-scale structural material. It can be used as a multi-square multi-adhesive aggregate (1) or a multi-square multi-adhesive aggregate (1) can be produced.

In addition, as shown in FIG. 8, a plurality of square materials 200 are stacked in a multi-layered square, and a resin adhesive is applied to each of the cutting surfaces 200a to be bonded to each other so as to be bonded to each other and dried to form a multi-adhesive aggregate material having a predetermined thickness ( 1) but by forming a hollow portion (1a) in the center, it is possible to manufacture a multi-hollow square multi-adhesive aggregate material (1) that can obtain a sufficient strength while using less square material (200). Of course, such a hollow portion (1a) can be passed through the wiring for the electricity supply when using the multi-glue aggregate material (1) according to the present invention for the purpose of pillars or beams, such as wires are exposed to the outside and aesthetics The effect of preventing this fall can also be expected.

On the other hand, as shown in Figures 4 to 8 above, the multi-adhesive aggregate material (1) manufactured by bonding using a resin adhesive is smoothly processed through the post-treatment using a surface processing machine (not shown) such as a planer It is preferable to use. (S170)

In addition, as shown in FIG. 9, the multi-layered adhesive member 1 having a predetermined thickness by stacking the square member 200 in a square as a whole as a whole and applying and bonding the resin adhesive 110 to each cut surface to be bonded to each other (1) ) Is manufactured by post-processing to have a circular cross-section and to use as a pillar of a wooden building. In addition, a plurality of corner members 200 may be arranged and joined to the longitudinal direction in the longitudinal direction to form a large cross-sectional structural member, as well as multi-adhesive having various cross-sectional structures such as circular, square, hexagonal, octagonal, and the like. The aggregate 1 can be manufactured relatively inexpensively.

As described above, embodiments of the present invention have been described in detail, but the scope of the present invention is not limited thereto, and the scope of the present invention extends to the range substantially equivalent to the embodiments of the present invention.

1: multi-glue aggregate 100: small diameter wood
101: 200 Pickup
200a: cutting surface

Claims (6)

A first step of cutting the side surfaces of the selected small diameter wood 100 into a center of a predetermined distance with a center of gravity to form a square material 200 having a square cross section;
A second step of drying the square shell 200 so that a water content is 12% or less;
A third step of cutting a four-sided surface to have a uniform width in order to remove the contracted and deformed portion of the dried square material 200;
A fourth step of forming a concave-convex surface 210 and applying a resin adhesive to longitudinally join the ends of the dry cut corners 200 to apply the resin adhesive;
A fifth step of cutting the four corners to have a uniform width in order to have a uniform surface; And
A sixth step of laminating and joining the vertically-joined right angle members 200 in a multi-layer and a multi-layer so that the central portion 101 faces in the longitudinal direction, and post-processing the cross-section to form a circle; Including;
In the sixth process, a plurality of vertically bonded square materials 200 are stacked in a square, and a resin adhesive is applied to each of the cutting surfaces 200a to be joined, thereby forming a hollow portion 1a in the center thereof. Method for producing a multi-adhesive aggregate material characterized in that.
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