CN2274557Y

CN2274557Y - Multilayered board binded with wood blocks

Info

Publication number: CN2274557Y
Application number: CN 96233745
Authority: CN
Inventors: 鲁杰; 鲁宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-16
Filing date: 1996-09-16
Publication date: 1998-02-18
Anticipated expiration: 2006-09-16

Abstract

The utility model relates to a multilayered thick board bond with wood blocks, which can be made by making use of wood with minor diameter or small size, and the utility model can be made by using the surplus stock of engineering processing or felling processing. A plurality of wood boards with identical grain direction are bind into a whole surface layer, a middle layer and a bottom layer, odd boards are stacked together, the grain direction of the wood board strips of each layer is consistent, and the grain direction of each layer is vertical to that of the other layer. The mutual contact face of the wood board strips and each layer is smeared with adhesive, and thermocompression is taken to compose a thick wood board. As the constraint of the adhesive between the wood board strips and the internal stress has offset balance, wood fiber tissue becomes tight after compression, and thereby, the buckling deformation of dry contraction and wet extension is overcome, the utilization rate of wood with low quality is improved, the cost is reduced, and the adhesive dosage is reduced.

Description

Multilayer piece gummed solid wood

The utility model belongs to the glued board of new structure

The odd-level gummed that the glued board of now commercially available all size mostly is three layers, five layers equal thickness forms.But its thickness is all thinner, can not satisfy the plank that people do load-bearing, and after mostly needing again be cut into the thin material of 1-2 millimeter with large diameter high-quality timber by Xuan, forward with behind the gluing of lateral separation glues together and makes by its wood grain again.It is many more to desire the thick then number of plies of thickness, and Xuan is cut into originally high more, uses amount of binder big more, so its use is restricted.

The purpose of this utility model is will provide a kind of can utilize minor diameter or short and small timber manufacturing, the residue material that can utilize engineering project again or fell processing is by sawing or separate the veneer lath splicing gummed that is cut into small pieces and be pressed into solid wood, can load-bearing, can overcome above-mentioned shortcoming again, and both improved low-quality material utilization rate, also there is not the weakness of the wet easy buckling deformation of rising of drying shrinkage of natural timber again.

The utility model is with sawing or separates the little batten of cutting dry back desired thickness and be stitched together through the surface treatment coated with adhesive and add the solid wood that is pressed into required specification with forcing press.It general can difference and thickness is combined at wood lath more than 5 millimeters all that odd-level glues together more than three layers with the equal in length width.Every layer with the same splicing of grain direction, and the adjacent layer wood grain is orthogonal.Surface layer is made for the rift grain wood lath.

Low material is easily buckling deformation in use, generally can not be used to load heavily and the place of attractive, decorative, so do not use in the architectural engineering.The utility model in force with this class minor diameter and short and small timber sawing or separate be cut into required piece wood piece lath or with on the engineering and the residue material of felling processing be processed into required wood lath, dry back becomes the wood lath of same thickness and length by slicing or sawing cut-off, make its Shi Nenggeng that splices near tightly, and splice by grain direction like combinations.With odd number gummed more than three layers, every layer of wood lath grain direction is identical usually for every plank, the wood grain of adjacent layer mutually vertically and the surface layer wood grain for forward, i.e. one deck rift grain one deck band, and the like.Be in contact with one another at every layer and every block of little wood lath during manufacturing and be combined into required specification after being coated with water-fast adhesive phenolic resins or pollopas on the face, again by above-mentioned line after the superimposed required number of plies of requirement, after the hot press pressurization, make.The original sparsity structure of pressurizing altered timber makes its fibr tissue tight, reaches its internal stress balance and strain and reduces.Because adopt polylith forward to glue together compacting separately with horizontal wood grain, promptly every interlayer line is to vertical mutually.The compacting back is offseted and balance by the constraint of adhesive and internal stress owing between wood lath, thereby has overcome owing to the particularly wet buckling deformation of rising and causing of drying shrinkage of low-quality material of timber, and the shape of holding plate and dimensionally stable have improved low-quality material utilization rate.

The utility model is described in further detail below in conjunction with accompanying drawing:

Fig. 1 is one of structural representation of the present utility model;

Fig. 2 is a structure end view of the present utility model.

1 is wood lath in the accompanying drawing, and 2 is view picture rift grain surface layer, and 3 is view picture band middle level, and 4 is view picture rift grain bottom.The end face that Fig. 2 is depicted as five layers of glued construction also can be made into the solid wood of the end face of multilayer gluing structure.

The utility model can be the 1000-2500 millimeter with every block length, and wide is the 80-130 millimeter, and thickness is the view picture surface layer 2 that the wood lath 1 of 5-25 millimeter is spliced into required size, middle level 3 and bottom 4.And each view picture layer by identical line to B1, B2 to Bn wood lath be combined into the length L and the width B of required size, the thickness H of every block of solid wood by H1, the H2 to Hn of same thickness by plank forward with horizontal alternate building up.Between each wood lath and on the contact-making surface of each view picture interlayer with water-fast adhesive phenolic resins or pollopas brushing.Generally not only can satisfy the demand but also can save cost with pollopas.Then the solid wood that builds up is added with hot press and be pressed into.Usually owing to plank in the gummed hot pressing will dwindle,, promptly should leave allowance so design size should be bigger than the needs size.

The utility model can be made into the large tracts of land solid wood, and the length L of its maximum area specification is 2440 millimeters, and width B is 1220 millimeters, and thickness is 60 millimeters.

The utility model had both had natural wood performance and purposes, had the glued board function again, replaced natural timber and house decorative material so can be widely used in engineering construction, and did not have their shortcoming.Be that it can be made into any thickness and size and not buckling deformation, binder dosage is few, and cost is low, is used to make building template and has both saved the high-quality natural timber, and advantages such as life-span length are arranged again.

Claims

1, a kind of multilayer piece gummed solid wood, it is characterized in that plank by the odd number view picture plank layer more than three layers mutually the hot pressing of folded gummed make; Every layer is spliced mutually by the small rectangular wood lath of several lines to unanimity, and the plank line is to vertical mutually between the adjacent layer.

2, multilayer piece according to claim 1 gummed solid wood is characterized in that every block of wood lath is to separate to make with minor diameter, second growth wood to grow into the 1000-2500 millimeter, and wide is the 80-130 millimeter, thickly makes for the 5-25 millimeter.

3, multilayer piece according to claim 1 gummed solid wood, it is characterized in that every layer of wood lath with and adjacent layer between the face that is in contact with one another scribble water-fast bondingly with phenolic resins or pollopas, be preferably urine aldehyde tree resin.