CN101528431B - Flattened bamboo panel - Google Patents
Flattened bamboo panel Download PDFInfo
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- CN101528431B CN101528431B CN200780036532.9A CN200780036532A CN101528431B CN 101528431 B CN101528431 B CN 101528431B CN 200780036532 A CN200780036532 A CN 200780036532A CN 101528431 B CN101528431 B CN 101528431B
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Abstract
The present invention provides a flattened bamboo panel having one single, solid layer of pressed bamboo culm wall with most of the exterior and interior zones. The processed bamboo panel provides at least one of its longitudinal surfaces seamless and both longitudinal cross sections parallel to each other and perpendicular to the longitudinal surfaces. The present invention also provides a process of constructing such flattened bamboo panel.
Description
Technical field
The present invention relates to a kind of bamboo board of flattening.
Background technology
The present invention relates to a kind of flattened bamboo panel, described bamboo board has the compacting bamboo bar wall of a single solid layer, and described bamboo bar wall has outside area and inner area.Cause is for to be made up of single thick bamboo tube, and processed bamboo board is glue-free thus.The method of constructing such bamboo board equally, is also disclosed.
Known multiple bamboo product in the prior art, conventionally, bamboo board is to be made up of the thick bamboo tube of tubulose, described thick bamboo tube comprises joint and bar wall.By outer and in, bamboo bar wall further comprises outside area, mesozone and inner area.In order to form a bamboo board, before it is extended and flattens to form described sheet material, conventionally remove the outside area of described bar wall and sizable part of inner area.
The problem that may cause in such technique comprises on the surface of lower utilization rate of raw materials, excessive use bonding agent, processed sheet material significantly crackle and high manufacturing cost.
For overcoming the above problems, carry out multiple trial.The most general thick bamboo tube in bamboo clappers industry is cut method open and is had low stock utilization, and being widely used of adhesive also caused high manufacturing cost.Bamboo trunk compacting and enlargement method (bamboo-tube-compressing-and-expanding) have been improved utilization rate; But, owing to must removing the outside area of bamboo bar wall and the major part of inner area, so utilization rate of raw materials is still lower.The thickness of the bamboo board of structure is often less than 8mm like this.
Therefore, need a kind of modification method by thick bamboo tube structure bamboo board.
Summary of the invention
Constructed a kind of bamboo board of flattening, comprised the bamboo bar wall of individual layer, described bamboo bar wall has outside area, mesozone and inner area.
According to another embodiment, construct a kind of bamboo board of flattening, described bamboo board comprises the bamboo stalk wall of individual layer, the inner area of wherein said bamboo bar wall is formed with two groups of oblique trunkings along two different directions; Wire casing within every group is parallel to each other.Described two groups of wire casings are placed on the opposite side of grain direction, and every group and grain direction are formed on the roughly angles between 10 degree and 60 degree.
Disclose the method for the bamboo board of manufacturing above-mentioned flattening, comprised the steps: that a) the whole length along thick bamboo tube is longitudinally cut thick bamboo tube, to form a slice or multi-disc bamboo bar wall, described bamboo bar wall comprises outside area, mesozone and inner area; B) soak and heat described bamboo bar wall, forming thus softening bar wall (softening process); And c) with gradually or multi-step process flatten described softening bar wall.
The optional method of manufacturing the bamboo board of above-mentioned flattening comprises the steps: that a) the whole length along thick bamboo tube is longitudinally cut thick bamboo tube, and to form a slice or multi-disc bamboo bar wall, described bamboo bar wall comprises outside area, mesozone and inner area; B) described inner area is formed with to multiple parallel wire casings, wherein said wire casing and grain direction are formed on the number of degrees between about 10 degree and 60 degree; C) soak and heat described bamboo bar wall, forming thus softening bar wall; And d) flatten described softening bar wall.
Brief description of the drawings
Fig. 1 is the stereogram in a cross section of thick bamboo tube.
Fig. 2 has shown the schematic diagram of the cross section of bamboo bar wall and not same district wherein.
Fig. 3 has shown according to the schematic diagram of the structure of the bamboo board of training centre structure of the present invention.
Fig. 4 has shown according to the stereogram of the structure of the variant of the bamboo board of training centre structure of the present invention.
Fig. 5 has shown according to the stereogram of the structure of another variant of the bamboo board of training centre structure of the present invention.
Fig. 6 has shown that be formed with on the interior longitudinal surface at bar wall before compacting non-penetrates, the stereogram of one section of bar wall of oblique trunking.
Fig. 7 has shown that be formed with on the interior longitudinal surface at bar wall before compacting non-penetrates, the stereogram of optional one section of bar wall of oblique trunking.
Fig. 8 has shown the side view of the pressure setting for suppressing the bar wall shown in Fig. 6 and 7.
Fig. 9 has shown the side view of the optional pressure setting for suppressing the bar wall shown in Fig. 6 and 7.
Figure 10 has shown the side view of pressure setting and the inner pressure setting through softening bar wall.
Figure 11 has shown the side view of the optional design of the pressure setting for flattening gradually described bamboo bar wall.
Figure 12 has shown the side view of another optional design of the pressure setting for flattening gradually described bamboo bar wall.
Detailed description of the invention
The invention provides a kind of bamboo board of flattening, described bamboo board comprises the bamboo stalk wall of individual layer, and wherein said bamboo stalk wall comprises outside area, mesozone and inner area, the each outermost portion that comprises in wherein said outside area and described inner area.In one embodiment of the invention, the bamboo board of described flattening is made up of a single thick bamboo tube.
Term " sheet material " refers to wood relative thin, flat etc.In this invention, term " sheet material " refers to bamboo piece relative thin, flat.
In this invention, disclosed method can not relate to use adhesive.In one embodiment, the bamboo board of flattening does not use adhesive.In another embodiment of the present invention, the bamboo board of flattening is high density plate material.
Referring to accompanying drawing, in Fig. 1, show a part for thick bamboo tube, wherein show that thick bamboo tube 1 comprises ring 2 and bamboo wall 3.The zoomed-in view of the cross section of thick bamboo tube 1 is presented in Fig. 2, has shown that bar wall 3 further comprises three different districts, and wherein said three different districts have different fibre densities and organization type.Conventionally, the outside area 4 of bar wall 3 has the fibre density higher than inner area 6 and the hardness of Geng Gao.Bar wall between outside area 4 and inner area 6 is defined as " culm zone " or " mesozone " 5 in this application.Each outermost portion that comprises of outside area and inner area.The described outermost portion of outside area is placed on the outer surface of bamboo bar wall.The outermost portion of inner area is placed in the inner surface place of bamboo bar wall.
One or more steps during the preliminary working of raw material thick bamboo tube can comprise the steps: an a) part for cutting raw material thick bamboo tube 1; B) (from the outside of thick bamboo tube) removes ring 2; C) cut and open described thick bamboo tube to form a slice or several bamboo bar walls 3 along the longitudinal length of thick bamboo tube; D) (from inside) further removes ring 2; E) soak and heat processed bamboo bar wall, until the tissue of bamboo is softened (softening processing).
After preliminary treatment bar wall, further need to extend, flatten and suppress forming spendable bamboo board.Final bamboo panel product 7 has been shown in Fig. 3.Described sheet material 7 has two parallel longitudinal surface (tops) 9 and 9a (bottom), two longitudinal cross-sections 8,8a, and described longitudinal cross-section 8,8a are parallel to each other and parallel with bamboo grain direction (direction of growth).Described two longitudinal cross-sections 8,8a are perpendicular to described two longitudinal surfaces 9 and 9a.
Due to unsuitable extension and flattening method, the bamboo panel product of being constructed by prior art often causes the upper obvious crackle in surface.In addition,, because outside area and the inner area of major part must be removed before flattening process, therefore (bamboo board) thickness of final products is greatly limited.
The invention provides a new method and suitably extend and flatten the bamboo board of preliminary treatment.According to one embodiment of present invention, the method for manufacturing flattened bamboo panel comprises the steps: that a) the whole length along thick bamboo tube is longitudinally cut thick bamboo tube, and to form a slice or multi-disc bamboo bar wall, described bamboo bar wall comprises outside area, mesozone and inner area; B) soak and heat described bamboo bar wall, forming thus softening bar wall (softening process); And c) with gradually or multi-step process flatten described softening bar wall.Above-mentioned step c) in, the bamboo bar wall of preliminary treatment be rotated and use rotation flattening device flatten gradually.In another embodiment, softening bar wall flattens gradually by promoting on column shaped rotating axle.As shown in figure 10, described rotation flattening device comprises the shell 11 of sealing, columniform rotatable shaft 12 and be connected to axle 12 and be connected to the casting lug thereon 13 of the inner surface of closure 11.Removable second 14 is placed in flattening part 15 to provide perpendicular to the controllable pressure of in longitudinal cross-section 8 or the 8a of bar wall 3.The thick bamboo tube of preliminary treatment is placed on the tubular gap that forms between axle 12 and closure 15, and its longitudinal cross-section 8 and 8a be contact block 13,14 respectively.Then described axle 12 is rotated counterclockwise.As a result, thick bamboo tube is just pushed in flattening part 15 also flattened gradually.Along with axle 12 rotates, controllable pressure 14 is applied on piece 14, and longitudinal cross-section 8, the 8a of bamboo bar cylinder are pressed during flattening process like this.Be applied to 8, pressure on 8a contributes to close at the crackle in the inner area that is formed on bamboo bar wall during flattening process, improves thus panel density and case hardness.
Bar wall after manufacturing in another embodiment of flattened bamboo panel method, softening is flattened gradually by multiple or one group of pressure setting, and each pressure setting has different compacting radians.As shown in figure 11, the bamboo bar wall 3 of preliminary treatment flattens gradually by multiple or one group of pressure setting 16a-16g, and each pressure setting has different compacting radians.In an embodiment again, described through softening bar wall pressure setting in first by described group, that there is maximum compacting radian suppress, and finally by described group, the pressure setting with minimum compacting radian suppresses.As shown in Figure 11, first the bamboo bar wall 3 of preliminary treatment is placed on described device 16a (having upper pressboard 17 and base portion 18) and is pressed.Then operative installations 16b, 16c, 16d, 16e, 16f repeat identical technique, and each device has the compacting radian reducing a little.For used last device, upper plate 17 and base portion 18 are replaced by a pair of flat plate 19 completely.Two pieces 20,20a are placed in last pressure setting further, and the longitudinal cross-section 8 of bamboo bar 3 is further pushed.
In another embodiment of method that manufactures flattened bamboo panel, by contacting multiple rollers or one group of roller, the bar wall after softening is flattened gradually, and each roller has different radians.As shown in Figure 12, the bamboo bar wall of preliminary treatment is by contacting multiple or one group of roller and being flattened gradually, and each roller has different radians.In yet another embodiment, roll-in system through softening bar wall in first by described group, that there is maximum compacting radian, and finally by described group, there is the roll-in system of minimum compacting radian.As shown in figure 12, when the inner surface of the bar wall 3 of described preliminary treatment is ground out-of-date by the first roller 21a (described the first roller 21a has maximum radian), start flattening process.Then, this technique can with second, third, the 4th and more roller repeat, each roller has the radian reducing gradually.Because last roller is flat, so bar wall 3 is also flattened completely.Flattened bamboo board can further be repaired longitudinal cross-section 8,8a.
Alternatively, on the inner area of bamboo bar wall, can be formed with multiple parallel oblique trunkings.As shown in Figures 6 and 7, in order to guide and reduce the object of crackle, before bamboo bar wall is extended and flattens, can on the inner area of bamboo bar wall, form multiple oblique trunkings 10,10a.The degree of depth of wire casing depends on hardness, the shape and size of bamboo bar wall.In general, oblique trunking need to penetrate inner area 6, enters mesozone 5, but does not penetrate mesozone 5.Carry out flattening process with common press device and often can in the inner area of bamboo board 7, form crackle.These crackles may penetrate whole bamboo bar wall, and arrive top surface 9, cause on it obvious crackle or even allow bamboo bar wall 7 split.Cross the oblique trunking that the inner area of bamboo bar sheet material 7 forms and be tending towards discharging the pressure in inner area, and make flattening process easier not adding in deep-fissured situation.
In an embodiment of flattened bamboo panel, the inner area of the bamboo board of flattening is formed with multiple parallel oblique trunkings.As shown in Figure 4, multiple parallel oblique trunking is formed on the inner area of bamboo board 10.In an embodiment again of the bamboo board flattening, between oblique trunking and the grain direction of bamboo board, be formed on roughly 10 angles of spending between 60 degree.As shown in Figure 5, spend between 60 degree about 10 in the angle forming between oblique trunking and the grain direction of bamboo board.
In another embodiment of the bamboo board of described flattening, two groups of oblique trunkings (in two directions) are formed on the inner area of bamboo board; Oblique trunking within every group is parallel to each other.It is important that two groups of wire casings are placed on the opposite side of grain direction, and the angle that forms of each wire casing and grain direction is between about 10 degree and 60 degree.As shown in Figure 5, two groups of oblique trunkings 10,10a (in two directions) are formed on the inner area of bamboo board 7; Oblique trunking within every group is parallel to each other.Every group of wire casing is placed in the opposite side of grain direction, and the angle being formed by each wire casing and grain direction is between about 10 degree and 60 degree.
In another embodiment of the present invention, the manufacture method of flattened bamboo panel comprises the following steps: a) longitudinally cut thick bamboo tube along the whole length of thick bamboo tube, to form a slice or multi-disc bamboo bar wall, described bamboo bar wall comprises outside area, mesozone and inner area; B) described inner area is formed with to multiple parallel wire casings, wherein said wire casing and grain direction are formed on the number of degrees between about 10 degree and 60 degree; C) soak and heat described bamboo bar wall, forming thus softening bar wall (softening process); And d) flatten described softening bar wall.As shown in Fig. 6,7,8 and 9, the bamboo bar wall part after being formed with oblique trunking can use common flattening device (for example Fig. 8,9) extend and flatten, and does not form significant crackle.
In another embodiment of above-mentioned open method that manufactures the bamboo board flattening, in softening process, bar wall is soaked and is heated to the temperature of about 140 degree to 200 degree.In another embodiment, described temperature is preferably between about 160 DEG C and 190 DEG C.
Described method may further include step: after flattening described bamboo bar wall, remove the outside area of described bamboo bar wall and a part for inner area.Manufacturing in the embodiment of method of the bamboo board flattening, after bamboo bar wall is flattened, remove the outside area of described bamboo bar wall and a part for inner area.Correspondingly, in an embodiment of the bamboo board flattening, remove the outermost portion from each described outside area and inner area.In another embodiment of the bamboo board flattening, remove the thickness of about 0.5mm bamboo bar wall from the outermost portion of described outside area and inner area.
In this invention, disclosed method has greatly increased bamboo utilization rate of raw materials and has increased significantly the thickness of final plate product.As a result, the average thickness of final sheet material can be up to 4-25mm.In another embodiment, the thickness of the bamboo board of flattening has the thickness from about 4mm to about 25mm.
Finally, this invention provides the bamboo board of the flattening of being manufactured by above-mentioned disclosed method.In certain embodiments, this invention further provides bamboo board that manufactured by above-mentioned disclosed method, high density, flattening.
Claims (14)
1. the bamboo board of a flattening, described bamboo board comprises the bamboo stalk wall of individual layer, wherein said bamboo stalk wall by fibre density and organization type by outer and in comprise outside area, mesozone and inner area, the each outermost portion that comprises in wherein said outside area and described inner area
Wherein, described inner area is formed with multiple parallel oblique trunkings or two groups of oblique trunkings, and described two groups of oblique trunkings are in two directions formed on described inner area, and the oblique trunking within every group is parallel to each other,
Between wherein said oblique trunking and the grain direction of described bamboo board, be formed with at approximately 10 degree to the angle between 60 degree.
2. the bamboo board of flattening according to claim 1, wherein said bamboo board is non-adhesive.
3. the bamboo board of flattening according to claim 1, wherein said bamboo board is to be made up of a single thick bamboo tube.
4. the bamboo board of flattening according to claim 1, wherein said bamboo board has the thickness from about 4mm to about 25mm.
5. a method of manufacturing the bamboo board of flattening, comprises the steps:
A) longitudinally cut thick bamboo tube along the whole length of thick bamboo tube, to form a slice or multi-disc bamboo bar wall, described bamboo bar wall by fibre density and organization type by outer and in comprise outside area, mesozone and inner area;
B) soak and heat described bamboo bar wall, forming thus softening bar wall; And
C) with gradually or multi-step process flatten described softening bar wall, wherein, before described bamboo bar wall is extended and flattens, described inner area is formed with multiple parallel oblique trunkings or two groups of oblique trunkings, described two groups of oblique trunkings are in two directions formed on described inner area, oblique trunking within every group is parallel to each other, is being formed on roughly 10 degree to the angle between 60 degree between oblique trunking and the grain direction of bamboo board.
6. method according to claim 5, wherein flattens gradually by being pushed on columnar rotating shaft through softening bar wall, or is flattened gradually by multiple or one group of pressure setting, and each described pressure setting has different compacting radians.
7. method according to claim 6, wherein said through softening bar wall pressure setting in first by described group, that there is maximum compacting radian suppress, and finally by described group, the pressure setting with minimum compacting radian suppresses.
8. method according to claim 5, wherein said flattens by contacting multiple rollers or one group of roller gradually through softening bar wall, and each roller has different radians.
9. method according to claim 8, wherein said through softening bar wall roll-in system in first by described group, that there is maximum compacting radian, and finally by described group, there is the roll-in system of minimum compacting radian.
10. method according to claim 5, wherein, after flattening described bamboo bar wall, removes the outside area of described bamboo bar wall and a part for inner area.
Manufacture the method for the bamboo board of flattening, comprise the steps: for 11. 1 kinds
A) longitudinally cut thick bamboo tube along the whole length of thick bamboo tube, to form a slice or multi-disc bamboo bar wall, described bamboo bar wall by fibre density and organization type by outer and in comprise outside area, mesozone and inner area;
B) described inner area is formed with to multiple parallel wire casings, wherein said wire casing and grain direction form the angle between about 10 degree and 60 degree;
C) soak and heat described bamboo bar wall, forming thus softening bar wall; And
D) flatten described softening bar wall.
12. methods according to claim 11, wherein in softening process, described bar wall is soaked and is heated to the temperature of about 140 DEG C to 200 DEG C.
13. methods according to claim 12, wherein said temperature preferably approximately 160 DEG C to 190 DEG C between.
14. methods according to claim 11, wherein, after flattening described bamboo bar wall, remove the outside area of described bamboo bar wall and a part for inner area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200780036532.9A CN101528431B (en) | 2006-09-29 | 2007-09-28 | Flattened bamboo panel |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200620108337.5 | 2006-09-29 | ||
| CN200620108337.5U CN200957623Y (en) | 2006-09-29 | 2006-09-29 | High-density flattening plate |
| CN200780036532.9A CN101528431B (en) | 2006-09-29 | 2007-09-28 | Flattened bamboo panel |
| IB2007033366 | 2007-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101528431A CN101528431A (en) | 2009-09-09 |
| CN101528431B true CN101528431B (en) | 2014-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780036532.9A Active CN101528431B (en) | 2006-09-29 | 2007-09-28 | Flattened bamboo panel |
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| CN (1) | CN101528431B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102632532B (en) * | 2012-04-20 | 2014-06-04 | 湖南省林业科学院 | Bamboo block thermal shaping method and device |
| CN104972540A (en) * | 2014-04-14 | 2015-10-14 | 杭州新竹文化创意有限公司 | Bamboo material spreading method |
| CN113858353B (en) * | 2021-09-18 | 2022-07-26 | 武夷学院 | Bamboo flattening processing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107775A (en) * | 1993-10-07 | 1995-09-06 | 鹿儿岛县 | Method for forming a curved plate into a flat plate and apparatus therefor |
| CN1559766A (en) * | 2004-02-17 | 2005-01-05 | 蒋甫定 | Bamboo plate and its production method |
| CN200957623Y (en) * | 2006-09-29 | 2007-10-10 | 杭州大庄地板有限公司 | High-density flattening plate |
-
2007
- 2007-09-28 CN CN200780036532.9A patent/CN101528431B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107775A (en) * | 1993-10-07 | 1995-09-06 | 鹿儿岛县 | Method for forming a curved plate into a flat plate and apparatus therefor |
| CN1559766A (en) * | 2004-02-17 | 2005-01-05 | 蒋甫定 | Bamboo plate and its production method |
| CN200957623Y (en) * | 2006-09-29 | 2007-10-10 | 杭州大庄地板有限公司 | High-density flattening plate |
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| CN101528431A (en) | 2009-09-09 |
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Effective date of registration: 20141230 Address after: 311251 Xiaoshan City, Hangzhou province Xiaoshan Pro Town Building Materials Trade City 6-9 No. Patentee after: HANGZHOU XINZHU CULTURE INNOVATION CO., LTD. Address before: 311200, New River Town, Xiaoshan District, Zhejiang, Hangzhou Patentee before: Zhejiang Dazhuang Industrial Group Co., Ltd. |