CN109366650B - Inner supporting type self-adaptive bamboo tube green removing supporting mechanism - Google Patents
Inner supporting type self-adaptive bamboo tube green removing supporting mechanism Download PDFInfo
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- CN109366650B CN109366650B CN201811562339.5A CN201811562339A CN109366650B CN 109366650 B CN109366650 B CN 109366650B CN 201811562339 A CN201811562339 A CN 201811562339A CN 109366650 B CN109366650 B CN 109366650B
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- 235000017166 Bambusa arundinacea Nutrition 0.000 title claims abstract description 143
- 235000017491 Bambusa tulda Nutrition 0.000 title claims abstract description 143
- 241001330002 Bambuseae Species 0.000 title claims abstract description 143
- 235000015334 Phyllostachys viridis Nutrition 0.000 title claims abstract description 143
- 239000011425 bamboo Substances 0.000 title claims abstract description 143
- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 230000033001 locomotion Effects 0.000 claims abstract description 6
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- 238000000034 method Methods 0.000 description 5
- 244000302661 Phyllostachys pubescens Species 0.000 description 4
- 235000003570 Phyllostachys pubescens Nutrition 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
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- 208000017740 grade III prostatic intraepithelial neoplasia Diseases 0.000 description 1
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- 239000002699 waste material Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27J—MECHANICAL WORKING OF CANE, CORK, OR SIMILAR MATERIALS
- B27J1/00—Mechanical working of cane or the like
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W90/00—Enabling technologies or technologies with a potential or indirect contribution to greenhouse gas [GHG] emissions mitigation
- Y02W90/10—Bio-packaging, e.g. packing containers made from renewable resources or bio-plastics
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Forests & Forestry (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Fish Paste Products (AREA)
Abstract
An internal stay formula self-adaptation thick bamboo tube removes green supporting mechanism, characterized by: the cantilever ends of the hollow supporting shafts I and II are provided with long grooves, two hollow shafts are respectively arranged in holes of the hollow supporting shafts I and II, the hollow shafts are respectively provided with a through hole, a short groove I and a short groove II, the front end of the central hole of each hollow shaft is provided with a mandrel, a baffle pin is arranged in the through hole of each hollow shaft, two long pins penetrate through the through hole of each mandrel and the short groove I of each hollow shaft and respectively extend into the long grooves of the hollow supporting shafts I and II, a pressure spring I is arranged between each baffle pin and each mandrel, the front end of each hollow shaft is provided with the pressure spring II and a rocker seat, and the front end of each mandrel is provided with a connecting rod seat; when the bamboo tube is installed, the push rod is retracted to drive the green removing supporting mechanism of the bamboo tube to be inserted into the bamboo tube; when the two long pins move to the forefront end of the long groove respectively, the mandrel and the long pins stop moving, and the hollow shaft continues to move under the drive of the pushing piece, so that the hollow shaft and the mandrel generate relative movement, and the three rocking bars are gradually opened under the pushing of the three connecting rods respectively to support the bamboo tube.
Description
Technical field: the invention relates to a bamboo tube supporting mechanism in a bamboo processing method, in particular to an internal supporting type self-adaptive bamboo tube green removing supporting mechanism which stretches self-adaptive bamboo tube green removing supporting mechanisms at two ends into an inner hole of a bamboo tube and adapts to the diameter change of the bamboo tube when the bamboo tube is grinded to remove green, so that the swing amplitude of the bamboo tube is minimum when the bamboo tube rotates.
The background technology is as follows: moso bamboo is an important forest resource which is fast-growing, high-yield, high-quality and easy to update and recover. It has short growth period and excellent physical and mechanical performance. Compared with wood, the bamboo tube has the geometrical characteristics of small diameter, thin and hollow wall, large sharpness, elliptical cross section, different degrees of bending along the length direction and the like, and all the problems and difficulties are caused to the processing and the utilization of the bamboo tube.
At present, bamboo is sawn, sectioned or shaved, and can only be processed into bamboo chips with the width of 15-20 mm and the thickness of 5-8 mm, so that the bamboo chips are difficult to directly use. In order to obtain products with good quality and high added value, expand the application field of bamboo processing products, improve the utilization rate of bamboo, and the insect resistance, corrosion resistance and mildew resistance, the moso bamboo must be further processed by adopting a unique processing technology and a processing method. If the moso bamboo can be unfolded into a crack-free bamboo flat plate, the crack-free bamboo flat plate with the width of 250-400mm, the length of 1300-3000mm and the thickness of 5-10mm can be obtained. The bamboo plate can be directly used as a decorative material, can also be used as a bamboo floor, and can be used for manufacturing various decorative materials such as composite floors, furniture panels, artificial boards and the like by slicing the bamboo plate into micro-thin bamboo with different thicknesses and pasting the micro-thin bamboo on various plate bases. To realize crack-free expansion of the whole bamboo tube, the bamboo tube is expanded into a bamboo flat plate, the inner sections and the tabasheer in the inner holes of the bamboo tube are removed, a seam is formed on the outer surface of the bamboo tube along the length direction, and the bamboo tube is expanded after softening treatment. In order to truly realize crack-free expansion of the whole bamboo tube, the inner and outer surfaces of the bamboo tube without the tabasheer and the bamboo green cannot have obvious edges or corners, otherwise, the bamboo tube is easy to generate stress concentration in the expansion process, so that an expansion plate is cracked; among all the bamboo tube de-greening methods, the most ideal de-greening method is grinding. If a grinding method is adopted, the bamboo tubes need to rotate, and because the geometry of the moso bamboo is special, each bamboo tube is bent to different degrees, no matter what type of bamboo tube supporting mode is adopted, the rotating bamboo tube has a certain swing, and the greater the bending degree of the bamboo tube is, the greater the swing is when the bamboo tube is rotated; the longer the bamboo tube is, the larger the swing is. The currently used bamboo tube supporting mode comprises two-end outer clamping type and two-end inner expanding type; the two-end external clamping type is to clamp the bamboo tube by using a three-leg chuck and drive the bamboo tube to rotate, the two-end surface internal expansion type is to extend into inner holes at two ends of the bamboo tube by using a conical support to support the bamboo tube and drive the bamboo tube to rotate, so that the swing amplitude of the two-end external clamping type and the two-end internal expansion type support mode is the largest (as shown in fig. 1) in the middle of the bamboo tube when the bamboo tube is driven to rotate for the bamboo tube with curvature, a grinding head rotating at a high speed is required to swing up and down along with the swing amplitude of the bamboo tube, the larger swing amplitude is the larger inertia impact force generated during grinding, the surface quality of the bamboo tube after the green removal is influenced, and in addition, the two-end external clamping type support mode also causes the waste of bamboo, and the clamped part cannot be ground, and the place without green removal before the expansion is required to be sawed. In order to reduce the inertial impact force generated during grinding and improve the quality of the outer surface of the bamboo tube after the green removal, the swing amplitude of the bamboo tube during rotation must be reduced as far as possible, and if the supporting points at the two ends of the bamboo tube are extended into the proper positions of the holes for removing the inner joints and the tabasheer, the swing amplitude of the bamboo tube during rotation can be minimized (as shown in fig. 2). The curvature and length of the bamboo tube in fig. 2 are the same as those in fig. 1, and the optimum support point selected in fig. 2 (the optimum support points of the bamboo tubes with different lengths are different and can be obtained through calculation) is adopted, so that the swing amplitude L2 is far smaller than the swing amplitude L1 in fig. 1.
The invention comprises the following steps:
the invention aims to provide an internal support type self-adaptive bamboo tube green removing supporting mechanism which is suitable for various bamboo tube diameters in a crack-free unfolding range of whole bamboo and has the minimum swing during green removing rotation.
The purpose of the invention is realized in the following way: the utility model provides an interior support formula self-adaptation thick bamboo tube removes green supporting mechanism, includes hollow supporting axle I, hollow supporting axle II, hollow axle, pushing away the piece, keeps off round pin, pressure spring I, driven sprocket, long round pin, mandrel, rocker seat, round pin axle I, rocker, round pin axle II, connecting rod seat, connecting rod, round pin axle III, axle are with circlip, short round pin, pressure spring II, characterized by: the hollow supporting shaft I and the hollow supporting shaft II are respectively supported by two rolling bearings, the cantilever extending ends of the hollow supporting shaft I are respectively provided with a long groove, and the hollow supporting shaft I is provided with a driven sprocket; the two hollow shafts penetrate through bearing end covers at two ends and are respectively arranged in holes of a hollow supporting shaft I and a hollow supporting shaft II, the front end of each hollow shaft is processed into a stepped shape, a through hole is formed in the middle of each hollow shaft, a short groove I and a short groove II are respectively formed in the front of each through hole, a mandrel is arranged at the front end of a central hole of each hollow shaft, a baffle pin is arranged in each through hole in the middle of each hollow shaft, and two long pins penetrate through the through holes on the mandrels and the short grooves I on the hollow shafts and extend into long grooves of the hollow supporting shafts I and II respectively; a pressure spring I is arranged between the stop pin and the tail part of the mandrel, a rocker seat is arranged at the front end of the hollow shaft, a pressure spring II is arranged between the rocker seat and the shaft shoulder of the hollow shaft, a connecting rod seat is respectively arranged at the front end of each mandrel, three rockers are respectively hinged on the rocker seat by three pin shafts I, and two ends of each three connecting rods are respectively hinged on the rockers and the connecting rod seat by pin shafts II and III; when the bamboo tube is assembled, push rods in push pieces at two sides retract to drive a hollow shaft, a stop pin, a pressure spring I, a mandrel, a long pin, a pressure spring II, a short pin, a rocker seat, a rocker, a connecting rod and a connecting rod seat to move together, and the hollow shaft and the rocker seat, the rocker, the connecting rod and the connecting rod seat at the front end of the mandrel are inserted into the bamboo tube from two ends together; when the two long pins move to the foremost ends of the long grooves on the hollow supporting shaft I and the hollow supporting shaft II respectively, the long pins are blocked, the mandrel and the long pins stop moving, the hollow shaft continues to move under the drive of the pushing piece, so that the distance between the hollow shaft and the mandrel is reduced, the pressure spring I is further compressed, the three rockers and the three connecting rods swing around the pin shaft I and the pin shaft III respectively, the three rockers are gradually opened under the pushing of the three connecting rods until the three rockers are in contact with the inner wall of the bamboo tube, the bamboo tube is supported, at the moment, the relative movement between the rockers and the connecting rods is avoided, the stroke of the pushing piece is stopped, the hollow shaft continues to move, the pressure spring II is further compressed, and the relative movement is generated between the hollow shaft and the rocker seat until the stroke of the pushing piece is ended; after the green removing of the bamboo tube is completed, the bamboo tube stops rotating, push rods in push pieces on two sides extend out to respectively drive the hollow shaft and the stop pin to move towards the outer end, and meanwhile, the long pin and the mandrel are fixed under the thrust of the pressure spring I and the rocker seat under the thrust of the pressure spring II; when the shaft arranged at the forefront end of the hollow shaft moves to the rocker seat by the elastic check ring, the hollow shaft moves together with the rocker seat, the distance between the rocker seat and the connecting rod seat is increased, the rocker and the connecting rod swing around the pin shaft I and the pin shaft III respectively, and the internal supporting type self-adaptive bamboo tube green removing supporting mechanism is loosened; when the edge of the short groove I on the hollow shaft moves to the long pin, the hollow shaft moves out of the bamboo tube together with the long pin, the mandrel, the rocker seat and the connecting rod seat.
When designing, according to the position of the best supporting point of the inner support of the bamboo tube and the initial position before the inner support type self-adaptive bamboo tube green removing supporting mechanism stretches into the bamboo tube, the length X1 of the long groove at the cantilever stretching end of the hollow supporting shaft I and the hollow supporting shaft II is determined, then according to the moving distance of the rocker seat relative to the connecting rod seat when the three rockers are contacted with the inner wall of the bamboo tube with the maximum diameter, the length X2+D1 of the short groove I on the hollow shaft is determined, according to the moving distance of the rocker seat relative to the hollow shaft when the three rockers are contacted with the inner wall of the bamboo tube with the minimum diameter and the inner wall of the bamboo tube with the maximum diameter, the moving distance of the rocker seat relative to the hollow shaft is the maximum when the three rockers support the bamboo tube with the minimum diameter, wherein X4 is determined according to the moving distance, and D1 and D2 are determined according to the required strength respectively.
The pushing piece stroke is H, the groove length of the cantilever extending ends of the hollow supporting shaft I and the hollow supporting shaft II is X1, the diameter of the long pin is D1, the diameter of the short pin is D2, the length of the short groove I on the hollow shaft is X2+D1, the length of the short groove II is X4+D2, after the inner supporting type self-adaptive bamboo tube green removing supporting mechanism supports the bamboo tube, until the pushing piece stroke is finished, the distance between the long pin and the edge of the short groove I on the hollow shaft is reduced from X2 to X3, when three rocking bars support the bamboo tube with the minimum diameter, the moving distance of the hollow shaft relative to the rocking bar seat is the largest, at the moment, the distance between the short pin and the edge of the short groove II on the hollow shaft is reduced from X4 to X5, wherein X3 is more than 0 and X5 is more than 0, and H=x1+x2-X3.
The hollow supporting shafts I and II are in clearance fit with the two hollow shafts, the hollow shafts and the mandrel, and the rocker seat and the hollow shafts, and the hollow shafts slide freely relative to the hollow supporting shafts I and II; the blocking pin is in interference fit with the through hole in the middle of the hollow shaft; the long pin is in interference fit with the mandrel, the long pin is in clearance fit with a short groove I on the hollow shaft, a hollow supporting shaft I and a long groove at the cantilever extension end of the hollow supporting shaft II respectively, and the long pin can freely slide in the short groove I on the hollow shaft, the hollow supporting shaft I and the long groove at the cantilever extension end of the hollow supporting shaft II; the short pin is in interference fit with the rocker seat, and is in clearance fit with the short groove II on the hollow shaft, and the rocker seat slides freely in the hollow shaft and the short pin in the short groove II on the hollow shaft.
The pushing piece adopts a linear motor or a cylinder.
The flat key is used for realizing circumferential fixation of the driven sprocket and the hollow supporting shaft I, the hollow supporting shaft I is driven to rotate by chain transmission, and the hollow shaft and the mandrel are driven to rotate together by the long pin, so that the bamboo tube is driven to rotate.
The shaft is axially fixed with the rocker seat and the hollow shaft by the elastic check ring, and the rocker seat and the hollow shaft are circumferentially fixed by the short pin.
When the push rod drives the hollow shaft to move, the pressure generated during the initial compression deformation of the pressure spring must ensure that the long pin moves in the long grooves of the cantilever extending ends of the hollow supporting shaft I and the hollow supporting shaft II, and the mandrel and the hollow shaft move together without relative sliding; when the long pin moves to the front ends of the long grooves on the cantilever extending ends of the hollow supporting shaft I and the hollow supporting shaft II along with the mandrel and the hollow shaft, the mandrel stops moving, the hollow shaft continues to move forward, the pressure spring I is further compressed, and the three rockers shake; because the diameters of the bamboo tubes are different, the bamboo tubes with different diameters are supported, and the total compression amount of the pressure spring is different, when the design is needed to ensure that the bamboo tube with the maximum diameter is supported, the total compression amount minus the initial compression amount generated by the pressure spring I is larger than the distance that the long pin moves relative to the short groove I on the hollow shaft.
The compression spring II has an initial compression deformation when being arranged between the rocker seat and the shaft shoulder of the hollow shaft.
The invention has the advantages and positive effects that: the position of the inner supporting type self-adaptive bamboo tube green removing supporting mechanism for supporting the bamboo tube is the optimal supporting point, the supporting point can minimize the swing amplitude of the bamboo tube during rotation, the impact force on the bamboo tube during grinding of the grinding head is greatly reduced, and the surface quality of the green removed bamboo tube is improved; after the inner supporting type self-adaptive bamboo tube green removing supporting mechanism is driven by the pushing piece to quickly enter the position of the optimal supporting point in the bamboo tube, the long pin just moves to the forefront end of the long groove at the cantilever extending end of the hollow supporting shaft I and the hollow supporting shaft II, then the hollow shaft and the mandrel perform relative motion, the pressure spring I is further compressed, the distance between the rocker seat and the connecting rod seat is reduced, and the three rockers are gradually opened under the pushing of the three connecting rods respectively to support the bamboo tube; the three rockers support the bamboo tube with the minimum diameter, the rocker seat and the connecting rod seat do not move relatively, the stroke of the pushing piece is fixed, and as the compression spring II is arranged between the shaft shoulder at the front end of the hollow shaft and the rocker seat, when the pushing piece moves forwards along with the hollow shaft, the hollow shaft and the rocker seat can slide relatively, the compression spring II is compressed further, thereby adapting to the change of the diameter of the bamboo tube, and the device has simple structure and low manufacturing cost, and is convenient and quick to assemble and disassemble the bamboo tube.
Description of the drawings:
FIG. 1 is a schematic view of two ends of a bamboo tube, showing the swing of the bamboo tube during the green removing rotation
FIG. 2 is a schematic view of an internal support type bamboo tube, showing the swing of the bamboo tube during the green removing rotation
FIG. 3 is an axial cross-sectional view of a self-adaptive bamboo tube green removing support mechanism with a left inner support of a bamboo tube
FIG. 4 is an axial cross-sectional view of a self-adaptive bamboo tube green removing support mechanism with the right side of the bamboo tube and the inner support
FIG. 5 is an axial cross-sectional view of the self-adaptive bamboo tube green removing support mechanism extending into the front of the bamboo tube
FIG. 6 is an axial sectional view of the self-adaptive bamboo tube green removing support mechanism with two left and right sides of the bamboo tube extending into the optimal support position of the bamboo tube and before the three rockers have not yet swung
FIG. 7 is an axial sectional view of the self-adaptive bamboo tube green removing support mechanism extending into the bamboo tube to support the bamboo tube
FIG. 8 is a cross-sectional view A-A showing three rockers supporting a bamboo tube
In the figure: 1-1, a hollow supporting shaft I1-2, a hollow supporting shaft II 2, a hollow shaft 3, a pushing piece 4, a stop pin 5, a pressure spring I6, a flat key 7, a driven sprocket 8, a long pin 9, a mandrel 10, a rocker seat 11, a pin I12, a rocker 13, a pin II 14, a connecting rod seat 15, a connecting rod 16, a pin III 17, a circlip 18 for a shaft, a short pin 19, a pressure spring II 20 and a bamboo tube
The specific embodiment is as follows: the invention will be further described with reference to the drawings and examples.
The bamboo tube 20 is supported to the center position of an inner supporting type self-adaptive bamboo tube green removing supporting mechanism by using a mechanical arm or a manual work, pushing pieces 3 on two sides are started at the same time, push rods in the pushing pieces 3 on two sides drive respective hollow shafts 2, stop pins 4, pressure springs I5, spindles 9, long pins 8, rocker holders 10, connecting rod holders 14, rockers 12 and connecting rods 15 to quickly extend into the positions of optimal supporting points in the bamboo tube 20, at the moment, the two long pins 8 are moved to the forefront ends of long grooves of cantilever extending ends of the hollow supporting shafts I1-1 and II1-2, the long pins 8 and the spindles 9 stop moving, the hollow shafts 2 and the stop pins 4 are driven by push rods of the pushing pieces 3 to continuously move forwards, the spindles 9 and the hollow shafts 2 generate relative movement, the distance between the rocker holders 10 and the connecting rod holders 14 is reduced, three rockers 12 and three connecting rods 15 shake around pin shafts I11 and III16 respectively, the three rockers 12 gradually expand under the pushing of the three connecting rods 15 until contacting with the inner walls of the bamboo tube 20, at the moment, the rockers 12 do not swing any more, the rockers 12 and the rockers 15 do not stop moving relatively, the hollow shafts 2 and the pushing pieces 10 do not move relatively, and the hollow shafts 2 do not move relatively, and the compression stroke 2 is further, and the compression stroke 2 is finished, and the compression stroke 2 is not moved continuously; after the green removing of the bamboo tube 20 is completed, the bamboo tube 20 stops rotating, push rods in push pieces 3 at two sides extend out to respectively drive a hollow shaft 2 and a stop pin 4 to move towards the outer ends, and meanwhile, a long pin 8 and a mandrel 9 are fixed under the thrust action of a pressure spring I5 and a rocker seat 10 under the thrust action of a pressure spring II 19; when the shaft arranged at the forefront end of the hollow shaft 2 moves to the rocker seat 10 by the elastic check ring 17, the hollow shaft 2 moves together with the rocker seat 10, the distance between the rocker seat 10 and the connecting rod seat 14 is increased, the rocker 12 and the connecting rod 15 swing around the pin shaft I11 and the pin shaft III16 respectively, and the internal supporting type self-adaptive bamboo tube green removing supporting mechanism is loosened; when the edge of the short groove I on the hollow shaft 2 moves to the long pin 8, the hollow shaft 2 moves out of the bamboo tube 20 together with the long pin 8, the mandrel 9, the rocker seat 10 and the connecting rod seat 14, the green removing processing of one bamboo tube is completed, and the above actions are repeated to process the next bamboo tube.
Claims (4)
1. The utility model provides an interior support formula self-adaptation thick bamboo tube removes green supporting mechanism, including hollow supporting axle I (1-1), hollow supporting axle II (1-2), hollow axle (2), push away piece (3), backing pin (4), pressure spring I (5), flat key (6), driven sprocket (7), long round pin (8), mandrel (9), rocker seat (10), round pin axle I (11), rocker (12), round pin axle II (13), connecting rod seat (14), connecting rod (15), round pin axle III (16), circlip (17) for the axle, short round pin (18), pressure spring II (19), characterized by: the hollow supporting shaft I (1-1) and the hollow supporting shaft II (1-2) are respectively supported by two rolling bearings, the cantilever extending ends of the hollow supporting shaft I (1-1) are respectively provided with a long groove, and the hollow supporting shaft I (1-1) is provided with a driven sprocket (7); the two hollow shafts (2) penetrate through bearing end covers at two ends and are respectively arranged in holes of a hollow supporting shaft I (1-1) and a hollow supporting shaft II (1-2), the front end of each hollow shaft (2) is processed into a step shape, a through hole is formed in the middle of each hollow shaft, a short groove I and a short groove II are respectively formed in the front of each through hole, and a mandrel (9) is arranged at the front end of a central hole of each hollow shaft (2); the baffle pin (4) is arranged in a through hole in the middle of the hollow shaft (2), and two long pins (8) penetrate through the through hole on the mandrel (9) and a short groove I on the hollow shaft (2) to respectively extend into long grooves of the hollow supporting shaft I (1-1) and the hollow supporting shaft II (1-2); a pressure spring I (5) is arranged between the stop pin (4) and the tail part of the mandrel (9), a rocker seat (10) is arranged at the front end of the hollow shaft (2), a pressure spring II (19) is arranged between the rocker seat (10) and the shaft shoulder of the hollow shaft, a connecting rod seat (14) is respectively arranged at the front end of each mandrel (9), three rockers (12) are respectively hinged on the rocker seat (10) through three pin shafts I (11), and two ends of three connecting rods (15) are respectively hinged on the rockers (12) and the connecting rod seat (14) through pin shafts II (13) and pin shafts III (16); the flat key (6) is used for realizing circumferential fixation of the driven sprocket (7) and the hollow supporting shaft I (1-1), the hollow supporting shaft I (1-1) is driven to rotate by chain transmission, and the hollow shaft (2) and the mandrel (9) are driven to rotate together by the long pin (8), so that the bamboo tube is driven to rotate; when the bamboo tube is assembled, push rods in pushing pieces (3) at two sides retract to drive a hollow shaft (2), a stop pin (4), a pressure spring I (5), a mandrel (9), a long pin (8), a pressure spring II (19), a short pin (18) and a rocker seat (10), a rocker (12), a connecting rod (15) and a connecting rod seat (14) to move together, and the hollow shaft (2) and the rocker seat (10), the rocker (12), the connecting rod (15) and the connecting rod seat (14) at the front end of the mandrel (9) are inserted into the bamboo tube from two ends together; when the two long pins (8) move to the forefront ends of the long grooves on the hollow supporting shaft I (1-1) and the hollow supporting shaft II (1-2) respectively, the long pins (8) are blocked, the mandrel (9) and the long pins (8) stop moving, the hollow shaft (2) continues moving under the drive of the pushing piece (3), so that the hollow shaft (2) and the mandrel (9) generate relative movement, the distance between the rocker seat (10) and the connecting rod seat (14) is reduced, the pressure spring I (5) is further compressed, the three rockers (12) and the three connecting rods (15) swing around the pin shaft I (11) and the pin shaft III (16) respectively, the three rockers (12) are gradually opened under the pushing of the three connecting rods (15) until the three rockers are in contact with the inner wall of the bamboo tube, the bamboo tube is supported, after that, the rockers (12) and the connecting rods (15) do not move relatively any more, the rocker seat (10) stops moving, the stroke of the pushing piece (3) is not finished, the hollow shaft (2) continues moving, the pressure spring II (19) is further compressed, and the rockers (2) and the stroke of the pushing piece (3) is finished relatively.
2. The internal stay type self-adaptive bamboo tube green removing supporting mechanism as claimed in claim 1, wherein: the stroke of the pushing piece (3) is H, the groove length of the cantilever extending ends of the hollow supporting shaft I (1-1) and the hollow supporting shaft II (1-2) is X1, the diameter of the long pin (8) is D1, the diameter of the short pin (18) is D2, the short groove I on the hollow shaft (2) is X2+D1, the short groove II is X4+D2, after the inner supporting type self-adaptive bamboo tube green removing supporting mechanism supports the bamboo tube, until the stroke of the pushing piece (3) is finished, the distance between the long pin (8) and the edge of the short groove I on the hollow shaft (2) is reduced from X2 to X3, when the three rocking bars (12) support the minimum diameter bamboo tube, the distance of the hollow shaft (2) relative to the rocking bar seat (10) is the maximum, at this time, the distance between the short pin (18) and the edge of the short groove II on the hollow shaft (2) is reduced from X4 to X5, wherein X3 is more than 0 and X5 is more than 0, and H=x1+x2-X3.
3. The internal stay type self-adaptive bamboo tube green removing supporting mechanism as claimed in claim 1, wherein: the hollow supporting shaft I (1-1) and the hollow supporting shaft II (1-2) are in clearance fit with the two hollow shafts (2), the hollow shafts (2) and the mandrel (9), and the rocker seat (10) and the hollow shafts (2); interference fit is adopted between the baffle pin (4) and a through hole in the middle of the hollow shaft (2) and between the long pin (8) and the mandrel (9), the long pin (8) is in clearance fit with a short groove I on the hollow shaft (2), the long pin (8) is in clearance fit with a long groove on the cantilever extension end of the hollow supporting shaft I (1-1), and the long pin (8) is in clearance fit with a long groove on the cantilever extension end of the hollow supporting shaft II (1-2); the short pin (18) is in interference fit with the rocker seat (10) and is in clearance fit with a short groove II on the hollow shaft (2).
4. The internal stay type self-adaptive bamboo tube green removing supporting mechanism as claimed in claim 1, wherein: the pushing piece (3) driving the hollow shaft (2) to move adopts a linear motor or a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811562339.5A CN109366650B (en) | 2018-12-20 | 2018-12-20 | Inner supporting type self-adaptive bamboo tube green removing supporting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811562339.5A CN109366650B (en) | 2018-12-20 | 2018-12-20 | Inner supporting type self-adaptive bamboo tube green removing supporting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109366650A CN109366650A (en) | 2019-02-22 |
| CN109366650B true CN109366650B (en) | 2024-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811562339.5A Active CN109366650B (en) | 2018-12-20 | 2018-12-20 | Inner supporting type self-adaptive bamboo tube green removing supporting mechanism |
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| CN110014493A (en) * | 2019-04-15 | 2019-07-16 | 南京林业大学 | A kind of whole thick bamboo tube uniform thickness machine increases the supporting mechanism of knife bar rigidity |
| CN110587422B (en) * | 2019-09-12 | 2021-05-14 | 绍兴嘉越纺织机械有限公司 | Blue or green device is removed in thick bamboo tube polishing |
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