CN109849132A - A kind of bamboo cutting-off method - Google Patents
A kind of bamboo cutting-off method Download PDFInfo
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- CN109849132A CN109849132A CN201910282201.8A CN201910282201A CN109849132A CN 109849132 A CN109849132 A CN 109849132A CN 201910282201 A CN201910282201 A CN 201910282201A CN 109849132 A CN109849132 A CN 109849132A
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Abstract
The present invention relates to bamboo harvesting and processing technique fields, disclose a kind of bamboo cutting-off method: one group be located on same circumference, the disk light angle of throat that is arranged symmetrically is around the revolution of bamboo central axis and adaptive rotation cutting bamboo；It realizes that the multi-cutter-disk of bamboo is symmetrical, circumferentially successively cuts, makes uniform force in bamboo cutting process, bamboo is avoided to crack, it is ensured that bamboo radial direction quality of tube cutting reduces waste of the bamboo wood in harvesting and process.
Description
Technical field
The present invention relates to a kind of bamboo cutting-off methods, belong to bamboo harvesting and processing technique field.
Background technique
China occupies first place in the world in terms of the cultivated area of bamboo, accumulation, yield and export amount, is known as " bamboo king
State " good reputation.Bamboo timber resource has extensive economic use value and environmental protection, greening ornamental value, it has become China's forestry money
Source utilizes and the important component of exploitation.China also much can not meet people for the development and utilization of bamboo timber resource at present
Demand, greatly the reason is that because bamboo itself is more crisp the characteristics of bamboo wood itself, fell easily split, hollow unbalance stress
It is easy to split.
The bamboo style of cutting mainly has 2 kinds at present: manually being felled with chopper, is manually felled with dedicated chain saw.Traditional people
Work chopper felling the drawbacks of being still the most common style of cutting, being primarily present is that large labor intensity, low efficiency, kerf quality are low
(notch out-of-flatness and be easy torn because of unbalance stress) etc.；When felling bamboo with dedicated chain saw, the notch of bamboo is more smooth,
But bamboo banking will appear the problem of not sawed-off bamboo is torn from incision in sawing process.It is now more advanced
The bamboo style of cutting be using reciprocating Cutting with chain saw, although working efficiency increases, chain saw quality is big, in addition sawtooth
It crosses slightly, is easy to tear off bamboo bamboo blueness and bursts.Above several methods for felling bamboo, which are not able to achieve, to guarantee to cut after bamboo is cut down
Mouth is smooth and does not crack.Therefore for bamboo it is hollow cutting be easy to appear tearing aiming at the problem that, explore it is a kind of reduction bamboo crack
Bamboo, which cuts new method, has practical application value.
Summary of the invention
The invention aims to provide a kind of bamboo cutting-off method, realize that the multi-cutter-disk of bamboo is symmetrical, circumferentially layer-by-layer
Cutting, makes uniform force in bamboo cutting process, bamboo is avoided to crack, it is ensured that bamboo radial direction quality of tube cutting.
In order to reach the technical solution that the purpose of the present invention is taken are as follows: one group is located on same circumference, is arranged symmetrically
Disk light angle of throat revolves around bamboo central axis and adaptive rotation cutting bamboo, specifically includes:
1, cutter is arranged: the connecting rod of two equal lengths hingedly forms V-arrangement knife rest at one end, is in the same plane three
The equal disk light angle of throat of diameter is connect on V-arrangement knife rest in isosceles triangle arrangement, respectively with two link rotatables, isoceles triangle
Shape and V-arrangement knife rest share the same axis of symmetry, and two connecting rods can change the angle α of V-arrangement knife rest around hinge joint rotation, realize cutter
Folding enter in cutter so as to bamboo, while when bamboo diameter d variation, α change to adapt to the bamboo of different-diameter, three
Disk light angle of throat center of rotation be located at perpendicular on the same circumference of bamboo central axis, the center of circle of the circle be located at bamboo central axis
On line；If two disk light angle of throat centers of rotation on same connecting rod are long away from h, i.e. isosceles triangle waist, disk light angle of throat diameter f,
Bamboo wall thickness b, one of disk light angle of throat center of rotation are overlapped with two connecting rod hinge points, the rotation of other two disk light angle of throat
Center is away from e=2hsin (α/2), disk light angle of throat not interference condition: h > f and α > 2sin-1(f/2/h), bamboo enters cutting tool
Condition: α0>2sin-1[(d+f)/2/h] starts cutting condition: α1=2cos-1[h/ (d+f)] terminates cutting condition: α2=
2cos-1[h/(d+f-2b)]；
2, cutter revolves: V-arrangement knife rest revolves around bamboo central axis, completes the cutting of bamboo whole circumference；If V-arrangement knife rest is public
The forward and reverse alternating movement of tarnsition velocity ω, ω, β<180 ° of V-arrangement knife rest reciprocally swinging corner meet β>2sin-1[h/ (d+f)] and
β>2α1The cutting of bamboo complete cycle can be completed in condition；
3, cutterhead adaptively rotates: cutter revolution is to three disk light angle of throats point in bamboo cutting process, on V-arrangement knife rest
It is not rotated adaptively around respective central axis, rolling cut is carried out to bamboo, it is smooth, whole to squeeze acquisition by disk light angle of throat rolling cut
Clean bamboo radial direction fracture；
4, tool feeding: changing α and realize Tool in Cutting feeding, circumferentially successively cuts, until cutting bamboo, V-arrangement knife rest
Angle α amount of feeding Δ α=α1-α2。
In above-mentioned bamboo cutting-off method, three disk light angle of throat isosceles triangle arrangements are changed to four on V-arrangement knife rest
A disk light angle of throat isosceles trapezoid arrangement is specifically included with adapting to the cutting of larger diameter bamboo:
1, cutter is arranged: the connecting rod of two equal lengths hingedly forms V-arrangement knife rest at one end, is in the same plane four
The equal disk light angle of throat of diameter connect in isosceles trapezoid arrangement, respectively with two link rotatables on V-arrangement knife rest, isosceles trapezoid and
V-arrangement knife rest shares the same axis of symmetry, and two connecting rods can change the angle α of V-arrangement knife rest around hinge joint rotation, realize opening for cutter
Close and enter in cutter so as to bamboo, at the same when bamboo diameter d variation, α changes to adapt to the bamboo of different-diameter, four disks
Light angle of throat center of rotation be located at perpendicular on the same circumference of bamboo central axis, the center of circle of the circle be located at bamboo central axis
On；If two disk light angle of throat centers of rotation on length of connecting rod g, same connecting rod are long away from h, i.e. isosceles trapezoid waist, disk light angle of throat
Diameter f, bamboo wall thickness b, two disk light angle of throat center of rotation of inside is away from e1=2 (g-h) sin (α/2), i.e. bottom in isosceles trapezoid
Long, two disk light angle of throat center of rotation of outside is away from e2=2gsin (α/2), i.e. isosceles trapezoid bottom length, disk light angle of throat are not interfered
Condition: h > f and α > 2sin-1[f/2/ (g-h)], bamboo enters cutting tool condition: 2sin-1[(d+f)/2/(g-h)]>α>
2sin-1[(d+f)/2/g] starts cutting condition: α1=2tan-1{[(d+f)2-h2]0.5/ (2g-h) }, terminate cutting condition: α2
=2tan-1{[(d+f-2b)2-h2]0.5/(2g-h)}；
2, cutter revolves: V-arrangement knife rest revolves around bamboo central axis, completes the cutting of bamboo whole circumference；If V-arrangement knife rest is public
The forward and reverse alternating movement of tarnsition velocity ω, ω, β<180 ° of V-arrangement knife rest reciprocally swinging corner meet β>2sin-1[h/ (d+f)] and
β>2sin-1[2gsin(α1/ 2)/(d+f)] condition, the cutting of bamboo complete cycle can be completed；
3, cutterhead adaptively rotates: cutter revolution is to four disk light angle of throats point in bamboo cutting process, on V-arrangement knife rest
It is not rotated adaptively around respective central axis, rolling cut is carried out to bamboo, it is smooth, whole to squeeze acquisition by disk light angle of throat rolling cut
Clean bamboo radial direction fracture；
4, tool feeding: changing α and realize Tool in Cutting feeding, circumferentially successively cuts, until cutting bamboo, V-arrangement knife rest
Angle α amount of feeding Δ α=α1-α2。
It revolves the beneficial effects of the present invention are, multiple disk light angle of throats proposed around bamboo central axis and adaptive
The cutting method that rolling cut bamboo should be rotated, the multi-cutter-disk for realizing bamboo is symmetrical, circumferentially layer-by-layer rolling cut, makes bamboo cutting process
Middle uniform force, avoids bamboo from cracking, it is ensured that bamboo radial direction quality of tube cutting reduces wave of the bamboo wood in harvesting and process
Take.
Detailed description of the invention
Fig. 1 is bamboo cutting-off method schematic diagram；
Fig. 2 is bamboo cutting-off method structural schematic diagram；
Fig. 3 is four cutterhead bamboo cutting-off method schematic diagrams；
Fig. 4 is four cutterhead bamboo cutting-off method structural schematic diagrams；
Fig. 5 is bamboo cutting process schematic diagram；
Fig. 6 is the layer-by-layer incision principle figure of bamboo；
In figure, 1: disk light angle of throat；2: connecting rod；3: bamboo；4: fastening spring.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.
Embodiment 1
Bamboo cutting-off method schematic diagram shown in FIG. 1, three disk light angle of throats for being located on same circumference, being arranged symmetrically
(1) it revolves around bamboo (3) central axis and bamboo (3) is cut in adaptive rotation, specifically include:
1, cutter is arranged: the connecting rod (2) of two equal lengths hingedly forms V-arrangement knife rest at one end, is in the same plane
The equal disk light angle of throat (1) of three diameters rotates company in isosceles triangle arrangement, respectively with two connecting rods (2) on V-arrangement knife rest
It connects, isosceles triangle and V-arrangement knife rest share the same axis of symmetry, and two connecting rods (2) can change V-arrangement knife rest around hinge joint rotation
Angle α, realize cutter folding so as to bamboo (3) enter cutter in, while when bamboo (3) diameter d variation when, α change with fit
The bamboo (3) of different-diameter is answered, three disk light angle of throat (1) centers of rotation are located at perpendicular to the same of bamboo (3) central axis
On circumference, the center of circle of the circle is located on bamboo (3) central axis；Set bamboo diameter d=80mm, two on same connecting rod (2)
Disk light angle of throat (1) center of rotation is long away from h=110mm, i.e. isosceles triangle waist, disk light angle of throat diameter f=60mm, bamboo wall
Thick b=10mm, one of disk light angle of throat (1) center of rotation are overlapped with two connecting rods (2) hinge joint, other two disk light sword
Knife (1) center of rotation is away from e=2hsin (α/2), disk light angle of throat (1) not interference condition: α > 2sin-1(f/2/h)=31.7 °, i.e.,
The angle α minimum limit angle of V-arrangement knife rest must be greater than 31.7 °, and bamboo (3) enters cutting tool condition: α0>2sin-1[(d+f)/2/
H]=79.1 °, start cutting condition: α1=2cos-1[h/ (d+f)]=76.5 °, terminate cutting condition: α2=2cos-1[h/(d+
F-2b)]=47.2 ° (as shown in Figure 5)；
2, cutter revolves: V-arrangement knife rest revolves around bamboo (3) central axis, completes the cutting of bamboo (3) whole circumference；If V-arrangement
Knife rest revolution angular velocity omega, the forward and reverse alternating movement of ω, outer power drive V-arrangement knife rest are swung around bamboo (3) central axis, V-arrangement knife
β<180 ° of frame reciprocally swinging corner meets β>2sin-1[h/ (d+f)]=103.6 ° and β > 2 α1=152.9 ° of conditions, as 180 ° > β
> 152.9 °, the cutting of bamboo (3) complete cycle can be completed；
3, cutterhead adaptively rotates: cutter revolves to three disk light swords in bamboo (3) cutting process, on V-arrangement knife rest
Knife (1) is adaptively rotated rotating around respective central axis, is carried out rolling cut to bamboo (3), is squeezed by disk light angle of throat (1) rolling cut
Pressure obtains smooth, clean and tidy bamboo radial direction fracture；
4, tool feeding: changing α and realize Tool in Cutting feeding, circumferentially successively cuts, until cutting bamboo (3), V-arrangement knife
Angle α amount of feeding Δ α=α of frame1-α2=29.3o；Fastening spring (4) is tension spring, and the both ends of fastening spring (4) are hingedly connected to
Two free ends (as shown in Figure 2) of two connecting rods (2), the pulling force of fastening spring (4) make α in bamboo (3) cutting process
It successively cuts and becomes smaller, realize the auto-feed of cutter.
After the cutting part for determining bamboo (3), entire cutting tool is leaned on for bamboo cutting process schematic diagram shown in fig. 5
Nearly bamboo (3) position to be cut, the angle for increasing V-arrangement knife rest meet 0 > 79.1 ° of α (as shown in Figure 5 a), enter bamboo (3) and cut
In cutter tool；When three disk light angle of throats (1) are tangent simultaneously with bamboo (3), three disk light angle of throat (1) centers of rotation, which are located at, hangs down
On the same circumference of straight Yu Zhuzi (3) central axis, the center of circle of the circle be located on bamboo (3) central axis, V-arrangement knife rest at this time
Angle α1=76.5 °, to start cut state (as shown in Figure 5 b)；After feed, successively cutting, the angle α of V-arrangement knife rest2
=47.2 °, to cut completion status (as shown in Figure 5 c).
The layer-by-layer incision principle figure of bamboo shown in fig. 6, into after starting cut state, outer power drive V-arrangement knife rest is around bamboo
(3) central axis reciprocally swinging realizes the revolution of V-arrangement knife rest, takes 180 ° > β > 152.9 °, completes primary whole circle cutting (such as Fig. 6 a institute
Show)；Every to complete primary whole circle cutting, cutter is primary (as shown in Figure 6 b) by the pulling force effect auto-feed of fastening spring (4),
Pulling force size by adjusting fastening spring (4) can change the cutting output fed every time, that is, change cutting feed number, such as
This reciprocation cycle, until cutting off bamboo (3).
Embodiment 2
Four cutterheads bamboo cutting-off method schematic diagram shown in Fig. 3, four disk light for being located on same circumference, being arranged symmetrically
Angle of throat (1) revolves around bamboo (3) central axis and adaptive rotation cutting bamboo (3), specifically includes:
1, cutter is arranged: the connecting rod (2) of two equal lengths hingedly forms V-arrangement knife rest at one end, is in the same plane
The equal disk light angle of throat (1) of four diameters is rotatablely connected on V-arrangement knife rest in isosceles trapezoid arrangement, respectively with two connecting rods (2),
Isosceles trapezoid and V-arrangement knife rest share the same axis of symmetry, and two connecting rods (2) can change the angle of V-arrangement knife rest around hinge joint rotation
α, realize cutter folding so as to bamboo (3) enter cutter in, while when bamboo (3) diameter d variation when, α change to adapt to not
With the bamboo (3) of diameter, four disk light angle of throat (1) centers of rotation are located at the same circumference perpendicular to bamboo (3) central axis
Upper, the circle the center of circle is located on bamboo (3) central axis；Set bamboo (3) diameter d=125mm, connecting rod (2) length g=
Two disk light angle of throat (1) centers of rotation on 250mm, same connecting rod (2) are long away from h=120mm, i.e. isosceles trapezoid waist, disk light
Angle of throat (1) diameter f=70mm, bamboo (3) wall thickness b=10mm, inside two disk light angle of throat (1) center of rotation is away from e1=2 (g-h)
Sin (α/2), i.e. bottom is long in isosceles trapezoid, and outside two disk light angle of throat (1) center of rotation is away from e2=2gsin (α/2), i.e. isosceles
Trapezoidal bottom length, disk light angle of throat (1) not interference condition: h > f and α > 2sin-1[f/2/ (g-h)]=31.3 °, i.e. V-arrangement knife rest
Angle α minimum limit angle must be greater than 31.3 °, and bamboo (3) enters cutting tool condition: 2sin-1[(d+f)/2/(g-h)]>α0>
2sin-1[(d+f)/2/g], i.e. 97.2 ° > α0> 46.0 °, start cutting condition: α1=2tan-1{[(d+f)2-h2]0.5/(2g-h)}
=44.1 °, terminate cutting condition: α2=2tan-1{[(d+f-2b)2-h2]0.5/ (2g-h) }=37.1 °；
2, cutter revolves: V-arrangement knife rest revolves around bamboo (3) central axis, completes the cutting of bamboo (3) whole circumference；If V-arrangement
Knife rest revolution angular velocity omega, ω forward direction, reversed alternating movement, outer power drive V-arrangement knife rest is swung around bamboo (3) central axis, real
Existing V-arrangement knife rest revolution, β<180 ° of V-arrangement knife rest reciprocally swinging corner meet β>2sin-1[h/ (d+f)]=76.0 ° and β > 2sin-1
[2gsin(α1/ 2)/(d+f)] cutting of bamboo (3) complete cycle can be completed when 180 ° > β > 148.6 ° in=148.6 ° of conditions；
3, cutterhead adaptively rotates: cutter revolves to four disk light swords in bamboo (3) cutting process, on V-arrangement knife rest
Knife (1) is adaptively rotated rotating around respective central axis, is carried out rolling cut to bamboo (3), is squeezed by disk light angle of throat (1) rolling cut
Pressure obtains smooth, clean and tidy bamboo radial direction fracture；
4, tool feeding: changing α and realize Tool in Cutting feeding, circumferentially successively cuts, until cutting bamboo (3), V-arrangement knife
Angle α amount of feeding Δ α=α of frame1-α2=7.0 °；Fastening spring (4) is tension spring, and the both ends of fastening spring (4) connect with two respectively
Bar (2) is hinged (as shown in Figure 4), the pulling force of fastening spring (4) make α with layer-by-layer cut in bamboo (3) cutting process and
Become smaller, every to complete primary whole circle cutting, cutter is primary by the pulling force effect auto-feed of fastening spring (4), by adjusting folder
The pulling force size of tight spring (4) can change the cutting output fed every time, that is, changes cutting feed number, and so on follow
Ring, until cutting off bamboo (3).
Claims (2)
1. a kind of bamboo cutting-off method, which is characterized in that one group be located on same circumference, the disk light angle of throat that is arranged symmetrically is around bamboo
The revolution of subcenter axis and adaptive rotation cutting bamboo, specifically include:
(1), cutter is arranged: the connecting rod of two equal lengths hingedly forms V-arrangement knife rest at one end, is in the same plane three directly
The equal disk light angle of throat of diameter is connect on V-arrangement knife rest in isosceles triangle arrangement, respectively with two link rotatables, isosceles triangle
The same axis of symmetry is shared with V-arrangement knife rest, two connecting rods can change the angle α of V-arrangement knife rest around hinge joint rotation, realize cutter
Folding enters in cutter so as to bamboo, at the same when bamboo diameter change, α changes to adapt to the bamboo of different-diameter, three circles
Disk light angle of throat center of rotation be located at perpendicular on the same circumference of bamboo central axis, the center of circle of the circle be located at bamboo central axis
On；
(2), cutter revolves: V-arrangement knife rest revolves around bamboo central axis, completes the cutting of bamboo whole circumference；
(3), cutterhead adaptively rotates: cutter revolution is to three disk light angle of throats difference in bamboo cutting process, on V-arrangement knife rest
It is adaptively rotated around respective central axis, rolling cut is carried out to bamboo；
(4), tool feeding: changing α and realize Tool in Cutting feeding, circumferentially successively cuts, until cutting bamboo.
2. bamboo cutting-off method according to claim 1, which is characterized in that three disk light angle of throats etc. on V-arrangement knife rest
Lumbar triangle shape arrangement is changed to four disk light angle of throat isosceles trapezoid arrangements, specifically includes:
(1), cutter is arranged: the connecting rod of two equal lengths hingedly forms V-arrangement knife rest at one end, is in the same plane four directly
The equal disk light angle of throat of diameter is connect on V-arrangement knife rest in isosceles trapezoid arrangement, respectively with two link rotatables, isosceles trapezoid and V
Shape knife rest shares the same axis of symmetry, and two connecting rods can change the angle α of V-arrangement knife rest around hinge joint rotation, realize opening for cutter
Close and enter in cutter so as to bamboo, at the same when bamboo diameter change, α changes to adapt to the bamboo of different-diameter, four disks
Light angle of throat center of rotation be located at perpendicular on the same circumference of bamboo central axis, the center of circle of the circle be located at bamboo central axis
On；
(2), cutter revolves: V-arrangement knife rest revolves around bamboo central axis, completes the cutting of bamboo whole circumference；
(3), cutterhead adaptively rotates: cutter revolution is to four disk light angle of throats difference in bamboo cutting process, on V-arrangement knife rest
It is adaptively rotated around respective central axis, rolling cut is carried out to bamboo；
(4), tool feeding: changing α and realize Tool in Cutting feeding, circumferentially successively cuts, until cutting bamboo.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910282201.8A CN109849132A (en) | 2019-04-09 | 2019-04-09 | A kind of bamboo cutting-off method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910282201.8A CN109849132A (en) | 2019-04-09 | 2019-04-09 | A kind of bamboo cutting-off method |
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ID=66903523
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4847997A (en) * | 1987-08-11 | 1989-07-18 | Troy Petty | Tubing cutters |
| CN201089173Y (en) * | 2007-04-03 | 2008-07-23 | 新疆屯河节水科技有限公司 | Concentric cutting device for planet cutting machine |
| CN202763172U (en) * | 2012-07-19 | 2013-03-06 | 湖北工业大学 | Rapid pipe-cutting mechanism with compound motion |
| CN104802246A (en) * | 2015-05-18 | 2015-07-29 | 湖州吴兴威国机械厂 | Moso bamboo cutter |
| CN105436599A (en) * | 2016-01-04 | 2016-03-30 | 史中喜 | Pipe cutter |
| CN206952257U (en) * | 2017-04-26 | 2018-02-02 | 陕西工业职业技术学院 | Tubing cutting device is reserved in a kind of construction |
| CN107737991A (en) * | 2017-10-10 | 2018-02-27 | 青海西矿杭萧钢构有限公司 | A kind of Section Steel Production cutting machine |
| US9908185B1 (en) * | 2016-11-21 | 2018-03-06 | Jiin Haur Industrial Co., Ltd. | Cutting device with wheeled blades |
-
2019
- 2019-04-09 CN CN201910282201.8A patent/CN109849132A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4847997A (en) * | 1987-08-11 | 1989-07-18 | Troy Petty | Tubing cutters |
| CN201089173Y (en) * | 2007-04-03 | 2008-07-23 | 新疆屯河节水科技有限公司 | Concentric cutting device for planet cutting machine |
| CN202763172U (en) * | 2012-07-19 | 2013-03-06 | 湖北工业大学 | Rapid pipe-cutting mechanism with compound motion |
| CN104802246A (en) * | 2015-05-18 | 2015-07-29 | 湖州吴兴威国机械厂 | Moso bamboo cutter |
| CN105436599A (en) * | 2016-01-04 | 2016-03-30 | 史中喜 | Pipe cutter |
| US9908185B1 (en) * | 2016-11-21 | 2018-03-06 | Jiin Haur Industrial Co., Ltd. | Cutting device with wheeled blades |
| CN206952257U (en) * | 2017-04-26 | 2018-02-02 | 陕西工业职业技术学院 | Tubing cutting device is reserved in a kind of construction |
| CN107737991A (en) * | 2017-10-10 | 2018-02-27 | 青海西矿杭萧钢构有限公司 | A kind of Section Steel Production cutting machine |
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Application publication date: 20190607 |