CN203542761U - Rectangular large-cross section bonding timber being manufactured by undersized logs - Google Patents
Rectangular large-cross section bonding timber being manufactured by undersized logs Download PDFInfo
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- CN203542761U CN203542761U CN201320452945.8U CN201320452945U CN203542761U CN 203542761 U CN203542761 U CN 203542761U CN 201320452945 U CN201320452945 U CN 201320452945U CN 203542761 U CN203542761 U CN 203542761U
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Abstract
The utility model relates to a rectangular large-cross section bonding timber being manufactured by undersized logs. The binding timber is in an oblong shape, and is formed by combining and bonding regular hexagonal prisms, pentagonal prisms and quadrangular prism, wherein the cross section is of a honeycomb structure, two parallel side surfaces are spliced by the pentagonal prisms, the other two parallel side surfaces are spliced by the quadrangular prism and the regular hexagonal prisms, and the pentagonal prisms and the quadrangular prism are respectively one half of the regular hexagonal prisms; according to the cross section size requirement of the rectangular large-cross section bonding timber and the bottom surface size of the regular hexagonal prisms, the number and the combined methods of the regular hexagonal prisms, the pentagonal prisms and the quadrangular prism are determined; each regular hexagonal prism is made of undersized logs with the diameter of 60-110mm, and the five types of diameters of internally tangent circles of the bottom surfaces of the regular hexagonal prisms include 40mm, 50mm, 60mm, 70mm and 80mm. The manufactured rectangular large-cross section bonding timber has the advantages that the structure stability is good, and the deformation is avoided; the rectangular large-cross section bonding timber can be directly used as the wood beams or wood columns of wood structure buildings, or are sawed into large-surface sheets, thereby improving the utilization rate and application value of undersized logs.
Description
Technical field
The utility model belongs to wood processing field, relates to the technology of utilizing of undersized log, is embodied in the large section gummed of the rectangle that utilizes undersized log to make flitch.
Background technology
Because China has implemented wildwood protected project, reduced the felling to wildwood, increased the cultivated area of artificial forest simultaneously, for example, south China area masson pine and China fir, be main artificial forest seeds, their forest land area is respectively 1203.50 ten thousand hm
2with 1126.87 ten thousand hm
2, area ratio accounts for respectively 7.74% and 7.24% of the whole nation, comes respectively second and the 3rd; And accumulation reaches respectively 58787.72 ten thousand m
3with 73409.48 ten thousand m
3, the ratio of accumulating accounts for respectively 4.40% and 5.49% of the whole nation.The timber that presents large footpath level on lumber market is at home reduced and the ever-increasing phenomenon of the quantity of undersized log gradually.So-called undersized log refers to that intermediate cutting gets off from Natural Secondary Forests or artificial fast-growing woods diameter is at the timber of 60mm～160mm.Due to undersized log, there is the defects such as taperingness is large, intensity is low, moisture content longitudinal difference is large, stress ratio height, directly utilize log article of manufacture easily to produce buckling deformation, cracking phenomena.Therefore, how improving the timber utilization rate of the low-quality undersized logs such as masson pine and China fir and utilize quality, is a hot issue of current wood processing field research.At present, the mode of utilizing to undersized log is mainly first path wood saw to be cutd open into burr sheet material, through series of processes such as sawing, millings, be processed into again little batten or the wooden unit of cuboid, and then composing the sheet materials such as core-board, circuit board, the timber utilization rate of undersized log is lower, added value of product is not high, application is narrower.
Summary of the invention
In order to improve the timber utilization rate of undersized log, widen the application and increase added value of product of undersized log, reach the object that the large use of small wood, the excellent use of bad material, efficient increment and low consumption utilize, the utility model provides a kind of large section gummed of rectangle flitch that utilizes the undersized log making that diameter is 60mm～110mm.The technical problem solving is structure of the large section gummed of rectangle flitch and preparation method thereof.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
(1) the large section gummed of a kind of rectangle that utilizes undersized log to make flitch, it is characterized in that: the large section gummed of described rectangle flitch profile is cuboid, by positive six prisms, pentagonal prism, quadrangular combination glue laminated, formed, the section of the large section gummed of rectangle flitch is honeycomb; In four sides of the large section gummed of rectangle flitch, there are two parallel sides to adopt pentagonal prism amalgamation, the side that two other is parallel to each other adopts quadrangular and positive six prism amalgamations; According to the large section gummed section dimension requirement of flitch of rectangle and the bed-plate dimension of positive six prisms used, determine quantity and the combination of positive six prisms, pentagonal prism, quadrangular.
(2) pentagonal prism described in the utility model is for dissecing and form by the long-diagonal mid point of described positive six prism bottom surface regular hexagons and with the plane symmetry of the lateral vertical of two opposing parallel, and its bottom surface is that to have two interior angles be that 90 °, three interior angles are the pentagon of 120 °.
(3) quadrangular described in the utility model dissects and forms for the maximum diagonal plane by described positive six prisms (being the plane at the long-diagonal of bottom surface regular hexagon and rib place, two opposite sides) symmetry, its bottom surface is isosceles trapezoid, and described quadrangular is half of described positive six prisms.
(4) positive six prisms described in the utility model are long by finger joggle, length specification (being the height of positive six prisms) is equal in length with the large section gummed of the rectangle that will make flitch, and the described positive six orthohexagonal inscribed circle diameters in prism bottom surface have 40mm, 50mm, 60mm, 70mm, five kinds of specifications of 80mm.
(5) in the large section gummed of rectangle described in the utility model flitch, stagger mutually in the finger joggle position of adjacent two prisms (positive six prisms and positive six prisms, positive six prisms and pentagonal prism, positive six prisms and quadrangular, pentagonal prism and quadrangular).
The utlity model has following advantage:
(1) the large section gummed of the rectangle flitch of making, section is honeycomb, good stability is indeformable.
(2) widened undersized log application, improved the use value of undersized log.The large section laminated wood of rectangle of making can be directly as wooden frame or pin in timber buildings, or by its sawing become thickness be the large format thin plate of 5mm～20mm for fields such as wooden furniture, timber floor and interior decorations, improved the convenience of using.
(3) improved the timber utilization rate of undersized log.Because in making the large section gummed of rectangle flitch process, first, undersized log is carried out to truncation, reduced the poor of the flexibility of juggle and the concentric reducer diameter of juggle, reduced refining losses; Secondly, juggle is carried out to grouping Processing by top diameter 60mm～69mm, 70mm～79mm, 80mm～89mm, 90mm～99mm, 100mm～110mm, process as far as possible six prisms of maximum volume.
Accompanying drawing explanation
Fig. 1 adopts the schematic diagram with rough positive six prisms of the two saw blade circular sawing machine processing of numerical control scale-division of self-centering function
The rough positive six prism end finger tenon process principle figure of Fig. 2
The rough positive six prism spreadings of Fig. 3 and specification are blocked schematic diagram
The schematic diagram of Fig. 4 processing and refining six prisms
The refining positive six prism bed-plate dimension figure of Fig. 5 processing
The refining non-positive six prism bed-plate dimension figures of Fig. 6 processing for partly cuing open
Fig. 7 processes the schematic diagram of quadrangular
Fig. 8 processes the schematic diagram of pentagonal prism
The cross-section structure of the large section gummed of Fig. 9 rectangle flitch
Figure 10 adopts the large section gummed of bidirectional press compacting rectangle flitch schematic diagram
The large section gummed of the rectangle flitch schematic diagram that Figure 11 has suppressed
In Fig. 5 and Fig. 6, D---positive six prism bottom surface regular hexagon inscribed circle diameters, δ---saw kerf width
In Fig. 9, B---section width, the H of the large section gummed of rectangle flitch---profile height, 1---positive six prisms, 2---pentagonal prism, the 3---quadrangular of the large section gummed of rectangle flitch
In Figure 10,4---horizontal direction fixation clip, 5---vertical direction movable pressing board, 6---vertical direction pressurization oil cylinder, 7---horizontal direction pressurization oil cylinder, 8---horizontal direction movable pressing board, 9---vertical direction fixation clips
The specific embodiment
Below in conjunction with accompanying drawing 1, to accompanying drawing 11, the specific embodiment of the present utility model is described further.
Utilize the undersized log that diameter is 60mm～110mm to make the large section gummed of rectangle flitch, comprise following step:
Step 1: juggle is prepared: the undersized log that is first 60mm～110mm by diameter blocks into the length specification of 1000mm, the size grades that is 60mm～69mm, 70mm～79mm, 80mm～89mm, 90mm～99mm, 100mm～110mm by top diameter to the juggle after blocking is divided into five kinds of diameter specifications, then juggle is dried to 12% moisture content.
Step 2: process rough positive six prisms: as shown in Figure 1, respectively the juggle of described five kinds of diameter specifications is adopted the two saw blade circular sawing machines of numerical control scale-division with self-centering function that juggle sawing is become to rough positive six prisms, during beginning, two saw blades are in initial position, two saw blades are arranged symmetrically with, juggle is delivered on circular sawing machine after centering machine centering, by clamp mechanism, juggle is clamped from two ends, the line of two ends clamping point is the center line of juggle maximum inscribed circle cylinder, then two saw blades enter into sawing position, and along the feeding of juggle centerline direction, juggle is carried out to sawing, complete after sawing for the first time, obtain two sides that are parallel to each other of six prisms, two saw blades retreat, and juggle rotates 60 ° for the first time, and simultaneously two saw blades turn back to and enter sawing position after initial position again and carry out sawing for the second time, after sawing completes for the second time, obtain again two other side being parallel to each other of six prisms, two saw blades retreat again, juggle rotates 60 ° for the second time, two saw blades turn back to and again enter sawing position after initial position and carry out sawing for the third time, after sawing completes for the third time, six whole sawings in side of six prisms complete, obtain rough positive six prisms, two saw blades retreat and turn back to initial position, wait for the sawing of next root juggle, the sawing respectively of the juggle of described five kinds of diameter specifications, can obtain rough positive six prisms that the orthohexagonal inscribed circle diameter in bottom surface is respectively 46mm, 56mm, 66mm, 76mm, five kinds of specifications of 86mm.
Step 3: rough positive six prism ends are processed to finger tenon: as shown in Figure 2, employing has the tenonen of special-purpose position block and hold-down mechanism workbench, a side of rough positive six prisms is contacted with work top, an adjacent side contacts with two position blocks, and compressed by hold-down mechanism, by position block and hold-down mechanism, guarantee the planform of finger tenon and be of the required size, feeding along with workbench, one end of rough positive six prisms is passed through butt annular saw successively, finger tenon milling cutter processes finger tenon, and then by rough positive six prism tunes, at the other end, also process finger tenon, the tongue-and-groove length direction of finger tenon is parallel with two opposite flanks of rough positive six prisms.
Step 4: by rough positive six prism spreadings: as shown in Figure 3, gluing on rough positive six prism end finger tenons, adopt again the special-purpose lengthening machine of the V-type guide-localization groove with hexagonal angle to carry out spreading, V-type guide-localization groove can effectively prevent the bending of six prisms after adjacent two 6 prisms dislocation and spreading, after spreading, is cut into specification length on demand by blocking annular saw.
Step 5: positive six prisms of processing and refining: as shown in Figure 4, employing is carried out fine finishining by the special use six prism moulding lathes of a lower horizontal cylinder cutter shaft, a upper horizontal cylinder cutter shaft, vertical V-type (120 °) cutter shaft in the right side, vertical V-type (120 °) cutter shaft formation in a left side by rough six prisms after spreading, obtains refining positive six prisms that the orthohexagonal inscribed circle diameter D in bottom surface is respectively 40mm, 50mm, 60mm, 70mm, five kinds of specifications of 80mm.
Step 6: refining non-positive six prisms of processing for partly cuing open: with reference to accompanying drawing 5 and accompanying drawing 6, first adjust special-purpose six prism moulding lathes, during with positive six prism of processing and refining, compare, upper horizontal cylinder cutter shaft is upwards heightened to δ (dissecing the saw kerf width of saw blade), right vertical V-knife axle and left vertical V-knife axle are upwards heightened 0.5 δ simultaneously, and the vertical V-knife axle level in a left side is adjusted to 0.577348 left, making the distance between the side of pair of parallel of six prisms that process is D+ δ, than the large δ of the distance between the parallel side of positive six prisms (inscribed circle diameter D), keep the side of aforementioned pair of parallel is that 0.57735D is constant in the six non-orthohexagonal length of sides in prism bottom surface simultaneously, non-orthohexagonal all the other four length of sides in bottom surface are pressed trigonometric function rule and are increased, after lathe adjustment completes, can process refining non-positive six prisms for partly cuing open, for making the quadrangular that bottom surface is isosceles trapezoid, be half of positive six prisms, as got, dissect the saw kerf width δ=2mm of saw blade, go up horizontal cylinder cutter shaft and upwards heighten 2mm, right vertical V-knife axle and left vertical V-knife axle are upwards heightened 1mm simultaneously, left vertical V-knife axle level is adjusted 1.1547mm left.
Step 7: processing quadrangular: as shown in Figure 7, employing has twin shaft thin-type saw web (saw kerf width the is δ) circular sawing machine of special fixture and precise guide rail, maximum diagonal plane by described refining non-positive six prisms (being the plane at the long-diagonal of bottom surface hexagon and two relative incline places) is carried out symmetry and is sawed and cut open, obtain two quadrangulars that identical bottom surface is isosceles trapezoid, quadrangular is just half of refining positive six prisms.
Step 8: processing pentagonal prism: as shown in Figure 8, employing has twin shaft thin-type saw web (saw kerf width the is δ) circular sawing machine of special fixture and precise guide rail, by the long-diagonal mid point of described refining positive six prism bottom surface regular hexagons and with the plane symmetry saw of the lateral vertical of two opposing parallel, cut open, obtain two identical bottom surfaces and be that to have two interior angles be that 90 °, three interior angles are the pentagonal pentagonal prism of 120 °.
Step 9: the structural design of the large section gummed of rectangle flitch: with reference to accompanying drawing 9 and accompanying drawing 11, the large section gummed of rectangle flitch profile is cuboid, by positive six prisms 1, pentagonal prism 2, quadrangular 3 combination glue laminateds, formed, the section of the large section gummed of rectangle flitch is honeycomb; In four sides of the large section gummed of rectangle flitch, there are two parallel sides to adopt pentagonal prism 2 amalgamations, the side that two other is parallel to each other adopts quadrangular 3 and positive six prism 1 amalgamations; According to the large section gummed section dimension requirement of flitch of rectangle and the bed-plate dimension of positive six prisms used, determine quantity and the combination of positive six prisms 1, pentagonal prism 2, quadrangular 3; For example, when compacting section width is B=400mm, the profile height large section gummed of the rectangle flitch that is H=414mm, as to select the positive six orthohexagonal inscribed circle diameters in prism bottom surface be 80mm, need to select 22 positive six prisms, 10 pentagonal prisms, 6 quadrangulars; When the large section of the rectangle gummed flitch of the same cross dimensions of compacting, as to select the positive six orthohexagonal inscribed circle diameters in prism bottom surface be 40mm, needs to select 104 positive six prisms, 20 pentagonal prisms, 12 quadrangulars; In the large section gummed of rectangle flitch, stagger mutually in the finger joggle position of adjacent two prisms (positive six prisms and positive six prisms, positive six prisms and pentagonal prism, positive six prisms and quadrangular, pentagonal prism and quadrangular).
Step 10: the large section gummed of compacting rectangle flitch: with reference to accompanying drawing 9, accompanying drawing 10 and accompanying drawing 11, refining positive six prisms 1, pentagonal prism 2, the quadrangular 3 of respective numbers according to the large section of the rectangle of the required making gummed design size of flitch and the size of positive six prisms used, have been matched, then in the side of each prism, adopt cylinder glue spreader gluing, in special frame, carry out assembly, after assembly finishes, send into two-way cold press or two-way hot press with high frequency is suppressed, after adhesive solidifies, can obtain the large section gummed of rectangle flitch.
The large section gummed of the rectangle flitch that the utility model utilizes undersized log to make, section is honeycomb, good stability, indeformable, can be directly as wooden frame or pin in timber buildings, or its sawing is become to thickness is the large format thin plate of 5mm～20mm, for fields such as wooden furniture, timber floor and interior decorations, improve timber utilization rate and the use value of undersized log, widened the application of undersized log.
Claims (5)
1. the large section of the rectangle that utilizes undersized log to make glues together flitch, it is characterized in that: the large section gummed of described rectangle flitch profile is cuboid, by positive six prisms, pentagonal prism, quadrangular combination glue laminated, formed, the section of the large section gummed of rectangle flitch is honeycomb; In four sides of the large section gummed of rectangle flitch, there are two sides that are parallel to each other to adopt pentagonal prism amalgamation, the side that two other is parallel to each other adopts quadrangular and positive six prism amalgamations; According to section dimension requirement and the positive six orthohexagonal inscribed circle diameters in prism bottom surface used of the large section gummed of rectangle flitch, determine quantity and the combination of positive six prisms, pentagonal prism, quadrangular.
2. the large section of a kind of rectangle that utilizes undersized log to make according to claim 1 glues together flitch, it is characterized in that: described pentagonal prism is for dissecing and form by the long-diagonal mid point of described positive six prism bottom surface regular hexagons and with the plane symmetry of the lateral vertical of two opposing parallel, its bottom surface is that to have two interior angles be that 90 °, three interior angles are the pentagon of 120 °.
3. the large section gummed of a kind of rectangle that utilizes undersized log to make according to claim 1 flitch, is characterized in that: described quadrangular forms for dissecing by the maximum diagonal plane symmetry of described positive six prisms, and the bottom surface of quadrangular is isosceles trapezoid.
4. the large section of a kind of rectangle that utilizes undersized log to make according to claim 1 glues together flitch, it is characterized in that: described positive six prisms are long by finger joggle, length specification is equal in length with the large section gummed of the rectangle that will make flitch, and the described positive six orthohexagonal inscribed circle diameters in prism bottom surface have 40mm, 50mm, 60mm, 70mm, five kinds of specifications of 80mm.
5. the large section gummed of a kind of rectangle that utilizes undersized log to make according to claim 1 flitch, is characterized in that: in the large section gummed of described rectangle flitch, stagger mutually in the finger joggle position of adjacent two prisms.
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