CN1803425A - Hollow wooden integration column production method - Google Patents

Abstract

The invention discloses a producing method of hollow wood integrated column, which comprises the following steps: A. affirming the shape and standard of integrated column; B. calculating the quantity, standard and dimension of needed raw material; C. selecting fitful small diameter material; D. sawing the small diameter material then drying; E. sawing and planning small diameter material to make the trapezoidal needed wood bar; F. applying glue on two waists; G. selecting mould and associating the mould; H. moulding; I. solidifying and stewing. The invention adapts waste material to make hollow wood integrated column, which can be applied in each architectural industry.

Description

Hollow wooden integration column production method

Technical field

The invention belongs to wood processing technique, is the production method that is pressed into hollow cylindricality integrated timber with the small dimension wood blocking tool.

Background technology

Forest land is in one's early years destroyed and forest conservation in recent years, and the raw material day of big footpath material is lacked, and industries such as building industry; often need with the bigger column of diameter; remedy this and lack, split the problem that new approach is produced the bigger column of diameter, become strong-willed person's the problem of capturing.CN01241945.1 discloses Mr.'s Liu Zhikun the equipment patent of " continuous type hollow cylinder coiling machine ", is to make raw material with veneer band to move towards formula by spiral connect continuous Chan around middle gummed on this equipment, when reaching certain wall thickness, makes hollow cylinder.The making wood of present veneer band, also rest on stage with big footpath material, the raw material sources of veneer band are had any problem, in addition, since make raw material with veneer band, and this band should have certain length, then can only select for use from the timber that is suitable for rotary cut venner, just can not make the rotary-cut material of veneer band as China's very wide fast-growing Chinese fir that distributes, the selection face of timber kind is narrower.

Summary of the invention

At the above-mentioned limitation of prior art, the objective of the invention is to design a kind of method of can be extensively producing hollow wooden integration column as raw material with the small dimension wood of various timber, branch etc.

The present invention can realize with following steps:

Shape, size, the length of A, the integrated post of setting;

B, by shape, size or the radian of setting integrated post, and the small dimension wood diameter that adopts calculates the bar number of the required trapezoidal batten of integrated post or trapezoidal batten of class or fan-like pattern batten, the length and the slope of waist;

C, in the small dimension wood that intend to adopt, choose the timber more perfectly straight, that defective is few after, cut long by the length of setting integrated post;

D, with the small dimension wood chosen saw divide, drying;

The length and the slope of E, bar number, radian, waist by the trapezoidal batten that calculates or trapezoidal batten of class or fan-like pattern batten, week, the plane of periphery or the inclined-plane of cambered surface and two waists on sawing machine and planer, processing;

F, applying glue on two central planes;

G, modeling and assembly;

H, mold pressing;

I, solidify and leave standstill.

Description of drawings

The integrated rod structure schematic diagram of Fig. 1 for adopting the present invention to produce.

Fig. 2-4 is several integrated post cross-sectional structure schematic diagrames.

The specific embodiment

The present invention is described in further detail below in conjunction with embodiment and with reference to accompanying drawing:

" shape " of A, so-called integrated post mainly contains prismatic hollow column, four prismatic hollow columns, many prismatics hollow column (is six prismatic hollow columns as Fig. 2), cylinder type hollow post (shown in Fig. 1,3,4).So-called " size ", cylindrical finger external diameter size, many prismatics refer to corresponding polygonal circumscribed circle diameter size, perhaps can be by the cross-sectional area opinion size of post.Length can be selected in 300-4000mm.

B, calculating are the important steps of this method.Can be with the cross section figure of the integrated post set, no matter be polygon or circle, according to all painting on paper by onesize and shape, the method that utilization is calculated or measured is calculated or is measured number, size, slope, the radian of the batten that surrounds the trapezoidal or fan-like pattern (general designation basic composition unit 2) of the used trapezoidal or class of this integrated post and writes down on the regular payroll.For example accompanying drawing 2, and the upper base 4 of trapezoidal batten, 3, two waists, 1 length of going to the bottom and slope are by calculating or measuring as can be known.

Step C, D have narrated clear, no longer carefully state.The related content of step e is described in B.If internal and external circumferential is a cambered surface, promptly so-called fan-like pattern (shown in Fig. 1,4) then all needs circular plane processing.If only need periphery that cambered surface is arranged, promptly so-called class trapezoidal (as shown in Figure 3) only needs process with circular plane in periphery.

F, applying glue only carry out on the face of waist 1, therefore between two waists adhesive layer 5 are arranged, and execute hot pressing glue with hot pressing; Execute to cold pressing and use glue with what cold pressing;

G, modeling are according to shape, specification, the size of making integrated post, the upper and lower mould and the core film of choosing and its coupling.Assembly carries out in mould, and the cylindrical or many ribs tubulose of the inner chamber after patrix and counterdie close up is to adapt to the needs of the integrated post mould of different cylindricalitys.This patrix and counterdie synthesize external mold, the core that shape, size, the length with made integrated post hollow core portion is complementary of still needing.Open upper and lower mould during assembly, the batten that is less than the half trapezoidal or class of having executed glue is trapezoidal or the fan-like pattern batten is layered on the counterdie, on the batten of completing, put the core film again, patrix and fixing then closes remaining batten after core has been spread, putting into press gentlier presses the back to extract the core film out, the pressure mold pressing of the about 1-3Mpa of usefulness is 1-4 hour again, connects fixing upper and lower mould and withdraws from press together, places on one side and leaves standstill.

Mould in H, the mold pressing has been done aforementioned, and press should be selected the press of and upper and lower, left and right corresponding distribution single by multi-cylinder for use, and this press can be suppressed the strip goods, and pressure is even.

I, curing.Because of different adhesive have different hardening times, this also is related to the problem of the still hot pressing of colding pressing, should according to applied environment, the adhesive kind of thickness of column, integrated post, produced original selected.No matter hot pressing is still colded pressing, and for eliminating internal stress, should leave standstill a period of time after curing is finished.

Embodiment 1: the making external diameter is 300mm, and internal diameter is that 200mm, length are the integrated post of cylindrical hollow of 4000mm.

Drawing diameter earlier is that 300mm and diameter are two concentric circles of 200mm, surround as eight fan-like pattern battens of need and to form, then with two concentrically ringed circumference eight equal parts, and eight Along ents are linked to each other with the center of circle, then the distance between two circumference is that the waist of fan-like pattern is long, slope and radian all can directly calculate or measure, fixed length by these data and 4000mm, saw, dig the fan-like pattern batten of eight same size sizes, through being coated with epoxide-resin glue, put into the mould assembly of same specification size, have 1-3Mpa pressure be suitable for pressing in the press of strip goods through the pressure that kicks the beam, the mould of loosing core, after the formal mold pressing (colding pressing), solidify and leave standstill a period of time after 2-4 hour, promptly become as Fig. 1, product shown in 4.

Embodiment 2, and the circumscribed circle diameter of making correspondence is that the circumscribed circle diameter of 300mm, hollow place correspondence is that 200mm, length are the integrated post of six prismatic hollows of 3000mm.

On paper, draw two six shapes figure, its central point overlaps, the circumscribed circle diameter of outer six shapes is 300mm, the circumscribed circle diameter of interior six shapes is 200mm, line is drawn with overlapping in six angles of two 6 shapes between the central point, just whole six shapes are divided into six trapezoidal, 3 peripheries of forming posts of going to the bottom, upper base 4 is formed the interior week of post, can directly measure from the drawing six trapezoidal on, the length of going to the bottom, the length of two waists 1 and slope according to the fixed length of these data and 3000mm, are made six identical six trapezoidal battens of specification size with the small dimension wood of choosing, applying glue on 1 in two waists again, as the melamine resin adehsive that hot pressing is used, assembly in mould is through the pressure that kicks the beam, the mould of loosing core, formal mold pressing, in 120-130 ℃ hot pressing 2.5-3 hour, leaving standstill after the curing promptly becomes six prismatic hollow columns more than 24 hours, as shown in Figure 2.

Embodiment 3, and the making external diameter is that the circumscribed circle diameter at 300mm, hollow place is that 200mm, length are the integrated post of cylindrical hollow bulb six ribs of 3500mm.

Drawing diameter on paper is the circle of 300mm, again at hexagon of this circle inside-paint, the center of circle overlaps with this hexagonal central point, with the center of circle and six angle of cut lines of hexagon and extend on the circumference of cylindrical, it is trapezoidal then to be divided into six classes between circumference and the hexagonal periphery, measure wherein the length of trapezoidal go to the bottom 3 (outer camber lines), upper base 4, waist 1 of class, measure the radian of circular arc and the slope of two waists 1 again, follow-up method as embodiment 1,2 is made the integrated post that the cylindrical hollow bulb is six prismatics, as shown in Figure 3.

The profile of integrated post is that oval-shaped also available said method makes, but does the batten of the basic composition unit 2 of growth behind the short small dimension wood finger again.

Among above-mentioned three embodiment, select the still hot pressing of colding pressing for use, Ying Yizhu uses or indoor application out of doors, the thickness of column size, with which kind of adhesive, hardening time length, cost of manufacture just consider as a whole and decide.

The profile of integrated post is that oval-shaped also available said method makes, but does the trapezoidal or fan-like pattern batten of trapezoidal or class of growth behind the finger of small diameter grade material than weak point again.

All the external diameter (or this polygonal circumscribed circle diameter) of integrated post is made as 300mm among above-mentioned three embodiment, internal diameter (or polygonal circumscribed circle diameter) is set at 200mm, this helps the general of upper and lower mould, during with tubular inner chamber compacting polygon prism, adding the cross section of counting equal number with rib in the middle of can considering is the long lead-in of D font, so that pressure is even.For streamline production, each size that is encircled into trapezoidal (trapezoidal, the fan-like pattern of class) of same post, slope etc. should be all mutually.

If the integrated post of making is that diameter is little, length is also little, then mould can adopt the form that many integrated posts once are pressed into, the also available press commonly used of press.

Advantages such as the present invention has available small dimension wood, branch etc. and makes raw material compared to existing technology, utilizes small wood to make big material, makes honest material with waste material, and the range of choice of raw material timber is extensive.

Claims (1)

1, a kind of hollow wooden integration column production method is characterized in that according to following steps production:

Shape, size, the length of A, the integrated post of setting;

B, by shape, size or the radian of setting integrated post, and the small dimension wood diameter that adopts, calculate the required trapezoidal batten of integrated post or trapezoidal batten of class or fan-like pattern batten the bar number, on the length and the slope of the length of going to the bottom or radian, waist;

C, in the small dimension wood that intend to adopt, choose the timber more perfectly straight, that defective is few after, cut long by the length of setting integrated post;

D, with the small dimension wood chosen saw divide, drying;

The length and the slope of E, bar number, end length or radian, waist by the trapezoidal batten that calculates or trapezoidal batten of class or fan-like pattern batten, week, the plane of periphery and/or the inclined-plane of cambered surface and two waists on sawing machine and planer, processing;

F, applying glue on two central planes;

G, modeling and assembly;

H, mold pressing;

I, solidify and leave standstill.

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