CN116021590B

CN116021590B - Tangential bamboo veneer preparation device and method for manufacturing reconstructed basic units and integrated boards

Info

Publication number: CN116021590B
Application number: CN202310076014.0A
Authority: CN
Inventors: 于海霞; 施金鹏
Original assignee: Zhejiang Academy of Forestry
Current assignee: Zhejiang Academy of Forestry
Priority date: 2023-02-07
Filing date: 2023-02-07
Publication date: 2025-09-26
Anticipated expiration: 2043-02-07
Also published as: CN116021590A

Abstract

The invention discloses a chordwise bamboo sheet preparation device which comprises a workbench, an inner bamboo joint removing and outer bamboo joint removing and surface roughening mechanism, a planing machine mechanism and a chordwise cutting mechanism which are sequentially arranged on the workbench from front to back, wherein the inner bamboo joint removing and outer bamboo joint removing mechanism and the planing machine mechanism are arranged above a transmission device, and a sorting bin is arranged below the chordwise cutting mechanism. The chord direction bamboo sheet preparation device designed by the invention can automatically, continuously and efficiently remove the outer and inner knots of the bamboo and rough/yellow surface and plane the bamboo to obtain bamboo sheets with different wall thickness layers, sequentially adjust the bamboo sheets and stack and reorganize the thickness of the bamboo sheets to form a reorganization basic unit, and then glue the integrated board square. The bamboo material is changed into a large-specification plate square material from a hollow barrel-shaped structure, the appearance effect of flattened bamboo is achieved, the bamboo material growth stress is fully released through unit segmentation and symmetrical recombination, and the bamboo material structure and performance optimization is achieved.

Description

Chordwise bamboo sheet preparation device and method for manufacturing recombined basic unit and integrated board

Technical Field

The invention belongs to the technical field of bamboo processing, and particularly relates to a device for preparing chordwise bamboo sheets and a method for manufacturing a recombined basic unit and an integrated board.

Background

With the prevalence of the low-carbon concept and the bamboo-winning concept, the research of high-quality bamboo products is gradually increased. Compared with wood, bamboo has the characteristics of high strength, good toughness, high strength, beautiful texture and the like, is an ideal raw material for engineering structures and decoration materials, but has the characteristics of small bamboo diameter, hollowness, thin wall and the like, and restricts the industrialized development of the bamboo. The existing bamboo units have the problems that the utilization rate of bamboo is not high, the original bamboo structure is damaged by the bamboo units, the paving structure is unstable, and the like. Because of the different structures of bamboo and wood, the existing mature wood processing machinery is difficult to effectively apply to bamboo processing. The development of bamboo materials starts from the eighties of the last century, only forty years, bamboo material processing machines are mainly developed independently, and at present, bamboo material processing is basically staged mechanical processing, and continuous production technical equipment is lacked.

The upgrading of the bamboo basic unit brings innovation for the development of the bamboo material, and the typical development history of the bamboo material from a common bamboo floor, a bamboo flattening, a bamboo plywood, a bamboo shaving board, a bamboo fiber board and a bamboo recombination material is recorded from a finish-planing bamboo strip, a bamboo flattening, a bamboo chip, a bamboo shaving board, a bamboo fiber to a bamboo fiber bundle. The bamboo chips are high-quality bamboo units, and the unit performance is unstable because of the relative weakness of processing machinery, and the bamboo chips are mainly used for weaving bamboo curtains and bamboo mats and then pressing plates, so that the quality of the plates is not high.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a chord direction bamboo sheet preparation device, a recombination basic unit and a manufacturing method of an integrated board square material, wherein each section of bamboo tube is used as a unit according to the characteristic of gradual change of density in the thickness direction of bamboo, the processed chord direction bamboo sheet is subjected to structural recombination to obtain the recombination basic unit, and the recombination basic unit is subjected to longitudinal and transverse integration to obtain the square material or a transverse large-breadth board, so that the integrated board can be used for furniture upright posts, frame structures, panels, side plates, laminates and the like. According to the invention, the hollow and barrel-shaped structure of the middle bamboo is changed into the board square material which can be designed into different specifications, the surface of the middle bamboo has the appearance effect of flattening bamboo (the board with the flattened breadth being 3-18 times of the circumference of the bamboo tube can be generally obtained), compared with the flattened bamboo, the symmetrical recombination density optimization treatment is performed in the thickness direction, the transverse unit division fully releases the bamboo growth stress, the bamboo structure and performance optimization is realized, and the bamboo processing utilization rate and the automation level are high.

In order to solve the technical problems, the technical scheme is that the chordwise bamboo sheet preparation device comprises a workbench, and a bamboo joint removing mechanism, a planing machine mechanism and a chordwise cutting mechanism which are sequentially arranged on the workbench from front to back, wherein the bamboo joint removing mechanism comprises an outer bamboo joint removing mechanism and an inner bamboo joint removing mechanism, the outer bamboo joint removing mechanism and the planing machine mechanism are arranged above a transmission device, an inner bamboo joint removing cutter for removing bamboo joints in a bamboo tube to be processed is arranged on the inner bamboo joint removing mechanism, an outer bamboo joint removing cutter for removing bamboo joints outside the bamboo tube to be processed is arranged on the outer bamboo joint removing mechanism, the inner bamboo joint removing mechanism, the outer bamboo joint removing mechanism and the transmission device are arranged on the workbench, and a storage bin is arranged below the chordwise cutting mechanism.

Preferably, the inner bamboo joint removing mechanism comprises a clamping fixing device and an inner bamboo joint removing cutter, the clamping fixing device comprises a first air cylinder and a second air cylinder, the first air cylinder is horizontally arranged on a first air cylinder base, the first air cylinder base is fixedly arranged on an inverted U-shaped air cylinder frame, the inverted U-shaped air cylinder frame is arranged on a workbench and is positioned right above a transmission device, a telescopic rod of the first air cylinder is fixedly connected with a motor mounting seat, a first motor is horizontally arranged on the motor mounting seat, an output shaft of the first motor is fixedly connected with a rotating shaft, one side of the rotating shaft, which is close to the first motor, is sequentially provided with a first push plate, a first spring and a second push plate in a penetrating manner, the two ends of the first push plate are respectively fixedly connected with the first push plate and the second push plate, one side end part, far away from the first motor, of the rotating shaft is connected with conical protrusions, and the first push plate, the second push plate and the first motor are provided with a first inner bamboo joint removing device for stretching the inner cutter to be contacted with the inner bamboo joint removing cutter, and the inner bamboo joint removing cutter is horizontally arranged on the first bamboo joint removing cutter;

the second cylinder is horizontally arranged on a second cylinder base, the second cylinder base is fixedly arranged on a lifting device, the lifting device is arranged on a workbench, a telescopic rod of the second cylinder extends out of the second cylinder base and is fixedly connected with a sliding rod, a third push plate, a second spring and a fourth push plate are sequentially arranged on the sliding rod in a penetrating mode, the third push plate is fixed on the sliding rod, two ends of the second spring are respectively fixedly connected with the third push plate and the fourth push plate, abutting pieces for being fixedly abutted against inner bamboo joints of a bamboo tube to be processed are connected to the peripheral sides of the third push plate and the fourth push plate through a second opening device, conical depressions matched with conical protrusions are formed in one end, far away from the telescopic rod of the second cylinder, of the sliding rod, the telescopic rods of the first cylinder and the second cylinder are oppositely arranged, and the first cylinder and the second cylinder are sequentially distributed along the running direction of the conveying device.

The first opening device comprises a plurality of first connecting rods, second connecting rods and third connecting rods, wherein the first connecting rods are rotatably arranged on the periphery of the first push plate, the second connecting rods are rotatably arranged on the periphery of the second push plate, the other ends of the first connecting rods are slidably connected with the second connecting rods and slide along the second connecting rods, the third connecting rods are rotatably arranged on one side, far away from the first motor, of the rotating shaft, the third connecting rods are rotatably connected with the second connecting rods, and the inner bamboo joint removing cutters which are horizontally arranged are rotatably arranged at the connecting positions of the third connecting rods and the second connecting rods;

The second opening device comprises a plurality of fourth connecting rods and fifth connecting rods, the fourth connecting rods are rotatably arranged on the periphery of the third push plate, the fifth connecting rods are rotatably arranged on the periphery of the fourth push plate, the other end parts of the fourth connecting rods are slidably connected with the fifth connecting rods and slide along the fifth connecting rods, and abutting pieces at the other end parts of the fifth connecting rods are connected.

Preferably, the workbench is provided with a touch switch, the touch switch is electrically connected with the second cylinder, and the touch switch is positioned on the workbench in the middle of the transmission device.

Preferably, the workbench is provided with two anti-retrograde devices, one anti-retrograde device is arranged on the workbench at the middle position of the transmission device, the other anti-retrograde device is arranged between the clamping and fixing devices, the other anti-retrograde device is arranged at the front side of the planing and separating mechanism, the anti-retrograde device comprises a retrograde stop block and a supporting spring, the retrograde stop block is obliquely arranged on the workbench at the middle position of the transmission device along the running direction of the transmission device, one end of the retrograde stop block is rotationally connected with the table surface of the workbench, and the other end of the retrograde stop block is supported on the workbench through the supporting spring.

Preferably, the outer bamboo joint removing mechanism comprises a third cylinder and a second motor, the third cylinder is connected with an outer bamboo joint removing cutter through a blade fixer, the outer bamboo joint removing cutter is a shape memory alloy blade, the outer bamboo joint removing cutter has two forms, one form is a cylinder surrounding the outer side of a bamboo tube to be processed, the other form is a parallelogram, a cylinder body of the third cylinder is fixedly connected with the end part of a vertical rod body of an L-shaped push rod, the horizontal rod body of the L-shaped push rod is slidably arranged on a fixed sliding block, the fixed sliding block is fixed on a workbench, the end part of the horizontal rod body of the L-shaped push rod is fixedly connected with the middle part of a sliding rod, the sliding rod is obliquely arranged, a sliding groove is formed in the sliding groove, a sliding block is slidably arranged in the sliding groove, the sliding block is rotatably connected with one end of a driving rod, the other end of the driving rod is rotatably connected with an output shaft of the second motor, the blade fixer comprises a U-shaped seat fixedly connected with a telescopic rod of the third cylinder, an opening end of the U-shaped seat is fixedly connected with a cylinder mounting seat, the cylinder mounting seat is rotatably sleeved with the cylinder body, the sliding seat is fixedly arranged on the third cylinder body is fixedly sleeved with the third cylinder seat, and the third cylinder is fixedly sleeved with the third cylinder body is fixedly provided with the third cylinder seat.

Preferably, the outer bamboo joint removing mechanism further comprises a straightening device, the straightening device comprises a fourth cylinder which is horizontally arranged, the bottom of the fourth cylinder is arranged on the height adjusting device, a straightening roller is fixedly arranged on a telescopic rod of the fourth cylinder, the outer wall of the straightening roller is controlled to prop against one side of the outer bamboo joint removing cutter in an annular shape by the fourth cylinder, and the height adjusting device controls the fourth cylinder to lift, namely the straightening roller lifts to straighten the outer bamboo joint removing cutter from a cylindrical shape to a parallelogram shape.

The chord direction cutting mechanism comprises a plurality of groups of upper pressing rollers and lower pressing rollers and cutting blades arranged on the rear sides of the upper pressing rollers and the lower pressing rollers, the cutting blades are fixedly arranged on a workbench in a welding mode, the upper pressing rollers and the lower pressing rollers comprise an upper gear fixedly arranged on a rotating shaft of the upper pressing rollers, a lower gear fixedly arranged on a rotating shaft of the lower pressing rollers, the upper gear is meshed with the lower gear, a transmission gear is further arranged on the rotating shaft of the lower pressing rollers, the transmission gears of all the lower pressing rollers are connected through chains, a driven gear is further fixedly arranged on the rotating shaft of the lower pressing roller positioned at the forefront, a third motor is arranged on the workbench, a driving gear is fixedly arranged on an output shaft of the third motor, and the driving gear is connected with the driven gear through a chain.

In addition, the invention also provides a manufacturing method of the bamboo chip recombination basic unit, which comprises the following steps:

S1, processing the bamboo tube by the chord direction bamboo sheet preparation device to obtain multi-layer bamboo sheets which are planed layer by layer along the wall thickness direction, gluing the multi-layer bamboo sheets by adopting a wood industrial adhesive, and assembling according to the order of the density up and down symmetry in the thickness direction to obtain a plate blank;

The wood industrial adhesive comprises 5-20 layers of bamboo tubes to be processed, wherein the thickness of the bamboo sheets is 0.5-3mm, the length of the bamboo sheets is 200-1000mm, the water content of the bamboo tubes to be processed is 50-150%, the solid content of the wood industrial adhesive is 16-20% of phenolic resin adhesive, and the sizing amount is 5-8%;

S2, performing hot-press forming on the plate blank, wherein the temperature of the hot-press forming is 110-150 ℃, the hot-press process is performed mainly by the thickness of the plate blank, the time is kept for 30-60S every 1mm of compression, and finally, the bamboo chip recombined basic unit with the thickness of 5-20mm is obtained.

Preferably, a plurality of high-quality bamboo sheets positioned on different layers, which are obtained by the same section of bamboo tube, comprise a first layer of bamboo sheets on the green side and a second layer of bamboo sheets on the green side, which are used as the surface layers of the plate blank, and other layers of bamboo sheets with the same length and width and poor surface quality are used as the middle layers, and the assembly is carried out in a mode that the bamboo sheets are symmetrical in the up-down density in the thickness direction.

The invention also provides a method for manufacturing the integrated board by the bamboo chip recombination basic unit, wherein the integrated board is divided into a surface material and a square material;

the bamboo chip recombination basic units prepared by the same section of bamboo tube are integrated in a bamboo joint alignment mode, 5-30 groups of recombination basic units are assembled in width, 2-3 groups of recombination basic units are integrated in thickness, then the ends of adjacent layers of recombination basic units are staggered and glued to obtain a plane material with a large-breadth flattened bamboo effect, and the number of bamboo chip layers of the recombination basic units forming the plane material is 3-15.

The bamboo chip recombination basic units prepared by the same section of bamboo tube are integrated in a bamboo joint alignment mode, 2-5 groups of recombination basic units are assembled in width, 2-3 groups of recombination basic units are integrated in thickness, then the ends of adjacent layers of recombination basic units are staggered and glued to obtain an integrated board square material, and the number of bamboo chip layers of the recombination basic units forming the square material is 5-20.

Compared with the prior art, the invention has the following effects:

1. The invention relates to a chordwise bamboo sheet preparation device which is used for automatically, continuously and efficiently removing outer and inner knots and planing to obtain bamboo sheets with different wall thickness layers, wherein a newly developed memory metal outer bamboo joint removing blade is linked with a reciprocating mechanism to realize efficient outer bamboo joint removing, a sand grinding layer is arranged on the surface of the blade to perform primary roughening treatment on the green bamboo and the yellow bamboo, an inner bamboo joint removing device is newly developed, a bamboo tube can be fixed, the inner bamboo joint can be effectively removed, the automation level is high, the surface of a compression roller of a continuous planing device is provided with a file surface structure, the green bamboo and yellow bamboo are doubly treated, the newly developed bamboo joint removing device can also perform stable work on small-diameter bamboo, bamboo with large diameter at one end and small diameter at one end and sharp bamboo with sharp cutting degree, and the bamboo processing surface is wide.

2. The bamboo chip reorganization basic unit disclosed by the invention sequentially adjusts and stacks and reorganizes the bamboo chips with different thick layers to form the reorganization basic unit, improves the density gradual change structure in the wall thickness direction, and forms a more stable reorganization unit by symmetrically paving and clamping the bamboo chips between layers.

3. The bamboo integrated board square disclosed by the invention has the advantages that the high-quality bamboo middle layer sheet obtained by the same section of bamboo tube comprises a green two-layer sheet serving as a surface layer, other bamboo sheets with the same length and width serving as an intermediate layer, and the bamboo integrated board square is assembled according to density symmetry, so that the flattening bamboo effect of 3-18 times of the circumference of the same section of bamboo tube and the width can be obtained, the bamboo structure and performance optimization can be realized, and the bamboo integrated board square is suitable for the requirements of high quality and high strength of upright posts, frame structures, panels, partition boards, side boards and the like of furniture.

4. The invention converts bamboo from hollow shape to cylindrical shape to design large-specification board square material, fully releases bamboo growth stress through unit segmentation and interlayer symmetrical recombination, realizes bamboo structure and performance optimization, and is a high-quality upgrading product of wood artificial boards.

The technical scheme of the invention is further described in detail through the drawings and the embodiments.

Drawings

Fig. 1 is a schematic structural view of the chordwise bamboo sheet manufacturing apparatus of the present invention.

Fig. 2 is a schematic structural view of the clamping and fixing device of the present invention.

Fig. 3 is a schematic structural view of the exo-bamboo joint removing mechanism of the invention.

Fig. 4 is a schematic diagram of the connection structure of the outer bamboo joint removing mechanism and straightening device.

Fig. 5 is a schematic view of the straightening device of the present invention.

Fig. 6 is a schematic view of the chord-wise cutting mechanism of the present invention.

Fig. 7 is a schematic view of a deformed open configuration of the clamping and fixing device of the present invention.

Fig. 8 is a schematic structural view of the clamping and fixing device of the present invention.

Fig. 9 is a schematic structural view of the anti-reverse device of the present invention.

Fig. 10 is a schematic view of a manufacturing process for manufacturing an integrated board of the present invention.

Fig. 11 (a) is a photograph of the bamboo chips of the present invention planed into 5 layers of bamboo chips.

Fig. 11 (b) is a photograph of the bamboo chips of the present invention planed into 11 layers of bamboo chips.

Fig. 11 (c) is a photograph of the bamboo chips of the present invention planed into 15 layers of bamboo chips.

FIG. 12 is a photograph of a recombinant bamboo of the present invention.

Reference numerals illustrate:

1-first cylinder, 2-1-first cylinder base, 2-second cylinder base, 3-1-inverted U-shaped cylinder frame, 3-2-lifting device, 4-motor installation seat, 5-first motor, 6-1-first push plate, 6-2-second push plate, 6-3-third push plate, 6-4-fourth push plate, 7-1-first spring, 7-2 second spring, 8-inner bamboo joint removing cutter, 9-conical bulge, 10-bamboo tube to be processed, 11-conical concave, 12-outer bamboo joint removing cutter, 13-third cylinder, 14-L-shaped push rod, 15-fixed slide block, 16-second motor, 17-driving rod, 18-slide block, 19-slide groove, 20-second cylinder, 21-gasket, 22-third spring, 23-U-shaped seat, 24-cylinder installation seat, 25-fourth cylinder, 26-fifth cylinder, 27-straight roller, 28-slide rod, 29-first rotating rod, 30-second rotating rod, 31-third rotating rod, 13-third connecting rod, 14-L-shaped push rod, 15-fixed slide block, 16-second motor, 17-driving rod, 18-second slide rod, 18-U-third cylinder installation seat, 25-fourth cylinder, 26-fifth cylinder, 27-straight roller, 28-slide rod, 29-first rotating rod, 30-second rotating rod, 30-third rotating rod, 31-third rod, third rotating rod, 35-third piston rod, 50-rotating rod, 50-rotating the top and 50-rotating rod, 50-rotating the cutter, 50-rotating rod, 50-supporting rod, 50-rotating the cutter, 50-rotating rod, 50-rotating the top rod, 50-rotating the cutter, and 50-rotating rod.

Detailed Description

Example 1

As shown in fig. 1-9, this embodiment discloses a chordwise bamboo sheet preparation device, which comprises a workbench 70, and an inner bamboo joint removing mechanism, an outer bamboo joint removing mechanism, a planing mechanism 40 and a chord direction cutting mechanism 50 which are sequentially arranged on the workbench 70 from front to back, wherein the inner bamboo joint removing mechanism, the outer bamboo joint removing mechanism and the planing mechanism are arranged above a transmission device, an inner bamboo joint removing cutter 8 for removing bamboo joints in a bamboo tube 10 to be processed is arranged on the inner bamboo joint removing mechanism, an outer bamboo joint removing cutter 12 for removing bamboo joints outside the bamboo tube 10 to be processed is arranged on the outer bamboo joint removing mechanism, the inner bamboo joint removing mechanism, the outer bamboo joint removing mechanism and the transmission device are arranged on the workbench 70, and a stock bin 80 is arranged below the chord direction cutting mechanism;

In this embodiment, the conveying device comprises two parallel-moving conveying belts, and the bamboo tube 10 to be processed is placed between the two parallel-moving conveying belts for transmission.

In this embodiment, the inner bamboo joint removing mechanism includes a clamping and fixing device and an inner bamboo joint removing cutter 8, the clamping and fixing device includes a first cylinder 1 and a second cylinder 20, the first cylinder 1 is horizontally installed on a first cylinder base 2-1, the first cylinder base 2-1 is fixedly installed on an inverted U-shaped cylinder frame 3-1, the inverted U-shaped cylinder frame 3-1 is installed on a workbench 70 and is located right above a transmission device, a telescopic rod of the first cylinder 1 is fixedly connected with a motor installation seat 4, a first motor 5 is horizontally installed on the motor installation seat 4, an output shaft of the first motor 5 is fixedly connected with a rotating shaft, one side of the rotating shaft, which is close to the first motor 5, is sequentially provided with a first push plate 6-1, a first spring 7-1 and a second push plate 6-2 in a penetrating manner, the first push plate 6-1 is fixed on the rotating shaft, the second push plate 6-2 is slidingly sleeved on the rotating shaft, two ends of the first spring 7-1 are respectively fixedly connected with the first push plate 6-1 and the second push plate 6-2, the end of the first motor 5 is fixedly connected with the first push plate 6-1 and the second push plate 6-2, the cutter is arranged on one side of the first motor 5, which is far from the first side of the first motor 5 is provided with a conical cutter 8, and the first cutter is arranged on the first side of the first motor 8, and the cutter is in a conical cutter is arranged on the first side of the first cutter to be in the bamboo joint removing cutter 8, and the first cutter is in contact with the first cutter 8, and the first cutter is arranged in the first side and is in the inner wall of the first cutter and is in a conical cutter, and the inner bamboo joint removing cutter is in the cutter, the inner cutter is in the inner cutter and the cutter is in the inner cutter, the cutter is a cutter for the a cutter for a cutter;

The first opening device comprises a first connecting rod 29, a second connecting rod 30 and a third connecting rod 31, wherein the first connecting rod 29 is rotatably arranged on the periphery of the first push plate 6-1, the second connecting rod 30 is rotatably arranged on the periphery of the second push plate 6-2, the other end part of the first connecting rod 29 is slidably connected with the second connecting rod 30 and slides along the second connecting rod 30, the third connecting rod 31 is rotatably arranged on one side, far away from the first motor 5, of the rotating shaft, the third connecting rod 31 is rotatably connected with the second connecting rod 30, and the joint of the third connecting rod 31 and the second connecting rod 30 is rotatably provided with a horizontally arranged inner bamboo joint removing cutter 8;

The number of the first connecting rods 29, the second connecting rods 30 and the third connecting rods 31 is 4, and the first connecting rods, the second connecting rods 30 and the third connecting rods are uniformly distributed on the periphery of the rotating shaft;

The second cylinder 20 is horizontally arranged on the second cylinder base 2-2, the second cylinder base 2-2 is fixedly arranged on the lifting device 3-2, the lifting device 3-2 is arranged on the workbench 70, a telescopic rod of the second cylinder 20 extends out of the second cylinder base 2-2 and is fixedly connected with the sliding rod 28, the sliding rod 28 is sequentially provided with a third push plate 6-3, a second spring 7-2 and a fourth push plate 6-4 in a penetrating way, the third push plate 6-3 is fixed on the sliding rod 28, the fourth push plate 6-4 is sleeved on the sliding rod 28 in a sliding way, two ends of the second spring 7-2 are fixedly connected with the third push plate 6-3 and the fourth push plate 6-4 respectively, and the circumferential sides of the third push plate 6-3 and the fourth push plate 6-4 are connected with a propping piece 35 for being fixedly propped against an inner bamboo joint of the bamboo tube 10 to be processed through a second expanding device;

In this embodiment, the lifting device 3-2 may be a cylinder or an electric lifting rod structure.

The second opening device comprises a fourth connecting rod 32 and a fifth connecting rod 33, wherein the fourth connecting rod 32 is rotatably arranged on the periphery of the third push plate 6-3, the fifth connecting rod 33 is rotatably arranged on the periphery of the fourth push plate 6-4, the other end part of the fourth connecting rod 32 is slidably connected with the fifth connecting rod 33 and slides along the fifth connecting rod 33, and a supporting piece 35 at the other end part of the fifth connecting rod 33 is connected;

The number of the fourth connecting rods 32 and the fifth connecting rods 33 is 4, the fourth connecting rods 32 and the fifth connecting rods 33 are uniformly distributed on the periphery of the sliding rod 28, the number of the supporting pieces 35 is also 4, the weight of the two supporting pieces 35 positioned above is lighter than that of the two supporting pieces 35 positioned below, the purpose is that the supporting pieces 35 can be kept perpendicular to the horizontal plane all the time, and the rotary connection on the second opening device is that the fourth connecting rods 32 and the fifth connecting rods 33 can be better unfolded to clamp outwards, and the supporting pieces 35 can support against the inner bamboo joints of the bamboo tube 10 to be processed.

Specifically, the rotational connection manner in the first opening device and the second opening device may adopt a connection manner such as hinging and the like which is commonly used for realizing the mechanical function of the first opening device and the second opening device.

In this embodiment, the first cylinder 1 is located at the front side of the conveying device, and the second cylinder 20 is located at the rear side of the conveying device, as shown in fig. 1 and 2, the first opening device and the second opening device are disposed opposite to each other, as shown in fig. 2, the first cylinder 1 is located at the left side of the second cylinder 20, and the conveying device is advanced from left to right.

In this embodiment, the workbench 70 is provided with a touch switch 36, the touch switch 36 is located at a middle position of the rear sides of two parallel moving transmission belts, when the bamboo tube 10 to be processed is driven to a proper position, the bamboo tube 10 is pressed against the touch switch 36, the touch switch 36 is electrically connected with the second air cylinder 20, and the operation of the telescopic rod of the second air cylinder is controlled.

The workbench 70 is provided with two anti-retrograde devices, one of the anti-retrograde devices is arranged between the clamping and fixing devices and is positioned at the front side of the touch switch 36, and the length of the bamboo tube 10 to be processed is one distance from the touch switch 36, so that the second opening device can apply a fixed reverse force to the bamboo tube 10 to be processed when opening. The other is located on the front side of the planing mechanism 40. The anti-reverse device comprises a reverse stop block 37 and a supporting spring 38, wherein the reverse stop block 37 is obliquely arranged on the workbench 70 at the middle position of the transmission device along the running direction of the transmission device, one end of the reverse stop block 37 is rotationally connected with the table top of the workbench 70, and the other end of the reverse stop block 37 is supported on the workbench 70 through the supporting spring 38.

The outer bamboo joint removing mechanism comprises a third air cylinder 13 and a second motor 16, the third air cylinder 13 is connected with an outer bamboo joint removing cutter 12 through a blade fixer, the outer bamboo joint removing cutter 12 is a shape memory alloy blade, the outer bamboo joint removing cutter has two forms, one form is the outer side of a bamboo tube 10 to be processed in a surrounding mode, the other form is a parallelogram which is straightened by straightening, the cylinder body of the third air cylinder 13 is fixedly connected with the end part of a vertical rod body of an L-shaped push rod 14, the horizontal rod body of the L-shaped push rod 14 is slidably arranged on a fixed sliding block 15, the fixed sliding block 15 is fixed on a workbench 70, the end part of the horizontal rod body of the L-shaped push rod 14 is fixedly connected with the middle part of a sliding rod, the sliding rod is obliquely arranged, a sliding groove is formed in the sliding rod, a sliding block 18 is slidably arranged in the sliding groove, the sliding block 18 is rotatably connected with one end of a driving rod 17, the other end of the driving rod 17 is rotatably connected with an output shaft of the second motor 16 through a transmission piece, and the transmission piece can be in a gear chain transmission mode.

The blade fixer comprises a U-shaped seat 23 fixedly connected with a telescopic rod of the third air cylinder 13, the opening end of the U-shaped seat 23 is connected with a cylindrical mounting seat 24, a cutter mounting sleeve is rotatably sleeved on the cylindrical mounting seat 24, an outer bamboo joint removing cutter 12 is fixedly mounted on the cutter mounting sleeve, gaskets 21 positioned on two sides of the cutter mounting sleeve are sleeved on the cylindrical mounting seat 24, the gaskets 21 can reduce abrasion of the cutter mounting sleeve and friction force, a third spring 22 is sleeved on the telescopic rod of the third air cylinder 13, and two ends of the third spring 22 are fixed between a cylinder body of the third air cylinder 13 and the U-shaped seat 23;

in this embodiment, the third cylinder 13 may be a single-rod cylinder, or may be a double-rod cylinder, preferably a double-rod cylinder, where two telescopic rods of the double-rod cylinder are respectively connected with two U-shaped seats 23, the two U-shaped seats 23 are connected with one outer bamboo joint removing cutter 12 through a cutter mounting sleeve of a cylindrical mounting seat 24, and the two U-shaped seats 23 are connected with one outer bamboo joint removing cutter 12, so that the cutter can be set wider, and the connection position is more fastened and is not easy to be damaged.

The outer bamboo joint removing mechanism further comprises a straightening device, the straightening device comprises a fourth cylinder 25 which is horizontally arranged, the bottom of the fourth cylinder 25 is arranged on the height adjusting device, the height adjusting device is a fifth cylinder 26, a straightening roller 27 is fixedly arranged on a telescopic rod of the fourth cylinder 25, the outer wall of the straightening roller 27 is controlled to abut against the inner wall of the outer bamboo joint removing cutter 12 in a cylindrical shape by the fourth cylinder 25, and the fifth cylinder 26 is controlled to enable the fourth cylinder 25 to ascend and descend, namely the outer bamboo joint removing cutter 12 is straightened from a cylindrical shape into a parallelogram in the lifting process of the straightening roller 27.

The surface of the outer bamboo joint removing cutter 12, which is contacted with the green bamboo, is set to be a rough surface, and the green bamboo surface can be primarily roughened while the green bamboo is removed. The inner bamboo joint removing cutter 8 is arranged to be a rough surface on one surface contacted with the tabasheer, and the tabasheer surface can be primarily roughened while the inner bamboo joints are removed. The roughened structure is similar to the surface structure of the file and has a plurality of protrusions distributed in a matrix.

The working process of removing the outer bamboo joint and removing the inner bamboo joint comprises the following steps: the bamboo tube 10 to be processed is horizontally placed on a conveying belt to move forwards, when the bamboo tube 10 to be processed is driven to a proper position, the telescopic rod of the second air cylinder 20 is stretched to stretch into the bamboo tube 10 to be processed, when the abutting piece 35 contacts the bamboo joint in the bamboo tube 10 to be processed, the telescopic rod of the second air cylinder 20 continues to stretch, the fourth connecting rod 32 and the fifth connecting rod 33 of the second expanding device stretch until the square abutting piece 35 abuts the inner bamboo joint to fix one side of the bamboo tube 10 to be processed, then the lifting device 3-2 is started to control the second air cylinder 20 to rise to be parallel to the first air cylinder 1, namely, the sliding rod 28 connected with the second air cylinder 20 and the rotating shaft connected with the first air cylinder are positioned on the same line to finish centering, then the first air cylinder 1 is started, and the telescopic rod of the first air cylinder 1 stretches out, the first opening device stretches into the other end of the bamboo tube 10 to be processed, the conical bulge 9 pierces the inner bamboo joint close to the side, the third connecting rod 31 is propped against the inner bamboo joint at first, but the telescopic rod of the first cylinder 1 continues to stretch to indirectly drive the first push plate 6-1 to move to one side of the inner bamboo joint, one side of the first connecting rod 29, the second connecting rod 30 and the third connecting rod 31 far away from the rotating shaft is outwards unfolded until the edge of the inner bamboo joint removing cutter 8 is propped against the inner wall of the bamboo tube 10 to be processed, the bamboo tube 10 to be processed is fixed on the inner bamboo joint removing mechanism through the operation, at the moment, the telescopic rod of the third cylinder 13 is controlled to stretch to enable the plane-shaped outer bamboo joint removing cutter 12 to prop against the outer wall of the bamboo tube 10 to be processed, form change to form surrounding the outer side of the bamboo tube 10 to be processed, then the second motor 16 is started, the output shaft of the second motor 16 rotates to drive the driving rod 17 to rotate around the output shaft, and the sliding block 18 rotationally connected with the driving rod 17 slides in the sliding groove, so that the L-shaped push rod 14 is controlled to reciprocate in the horizontal direction, the outer bamboo joint removing cutter 12 is indirectly controlled to reciprocate horizontally, the outer bamboo joints are removed, and the green surface of the bamboo tube 10 to be processed is roughened.

After the work of the outer bamboo joint removing cutter 12 is finished, the telescopic rod of the third cylinder 13 is controlled to retract, the outer bamboo joint removing cutter 12 is separated from the inner bamboo joint removing cutter 8, and the shape of the outer bamboo joint removing cutter 12 is restored to the plane shape by the straightening device.

After the work of going outer bamboo joint cutter 12 is finished, also can start first motor 5, control goes interior bamboo joint cutter 8 and get rid of interior bamboo joint around waiting to process thick bamboo tube 10 inner wall rotation, scrape the inner wall, the thick bamboo yellow side of roughening, first cylinder 1 pressurization start up continues to extend until, the toper arch 9 of axis of rotation stretches into slide bar 28's toper sunken 11 and realizes the butt joint, and first cylinder 1 continues to extend, the telescopic link of second cylinder 20 is retracted, go interior bamboo joint cutter 8 and will wait to process thick bamboo tube 10's interior bamboo joint completely to get rid of this moment, first motor 5 stops rotating, second cylinder 20 stops retracting, the staff takes off waiting to process thick bamboo tube 10 that will process that is good this moment, first cylinder 1 retracts, make going interior bamboo joint mechanism and get back to non-operating condition.

The planing mechanism is positioned at the rear of the inner bamboo joint removing mechanism and in front of the chord direction cutting mechanism, and is an existing bamboo tube planing mechanism, for example, a plurality of planing cutters which are uniformly distributed along the radial direction of the bamboo tube 10 to be processed are arranged on the planing mechanism, and the planing cutters are fixed on a cylindrical cutter mounting plate. When the bamboo tube 10 to be processed is processed by the inner bamboo joint and the outer bamboo joint, the bamboo tube 10 to be processed is conveyed to the planing machine mechanism along the conveying device, one side of the bamboo tube 10 to be processed is propped against the anti-retrograde device, the anti-retrograde device comprises a retrograde stop block 37 and a supporting spring 38, the retrograde stop block 37 is obliquely arranged on a workbench 70 at the middle position of the conveying device along the running direction of the conveying device, one end of the retrograde stop block 37 is rotationally connected with the table surface of the workbench 70, the other end of the retrograde stop block 37 is supported on the workbench 70 through the supporting spring 38, when the bamboo tube 10 to be processed runs forwards from the conveying device, the bamboo tube 10 to be processed is pressed on the retrograde stop block 37, the supporting spring 38 is compressed, the bamboo tube 10 to be processed smoothly passes through, and when the planing cutter is used for planing the bamboo tube 10 to be processed, one side of the bamboo tube 10 to be processed is propped against the retrograde stop block 37, the rearward movement is not guaranteed, the planing of the bamboo tube 10 to be processed is normally, and the bamboo tube to be planed into 3-5 bamboo sheets is planed smoothly.

The chord direction cutting mechanism comprises a plurality of groups of upper and lower press rolls and cutting blades 50-3 arranged on the rear sides of the upper and lower press rolls of each group, and the cutting blades 50-3 are fixedly arranged on a workbench 70 in a welding mode. The upper press roller and the lower press roller comprise an upper press roller 50-1 and a lower press roller 50-2, an upper gear is fixedly arranged on a rotating shaft of the upper press roller 50-1, a lower gear is fixedly arranged on a rotating shaft of the lower press roller 50-2, the upper gear is meshed with the lower gear, a transmission gear is further arranged on the rotating shaft of the lower press roller 50-2, the transmission gears of all the lower press rollers are connected through a chain, a driven gear is further fixedly arranged on the rotating shaft of the lower press roller 50-2 positioned at the forefront, a third motor 50-4 is arranged on the workbench, a driving gear is fixedly arranged on an output shaft of the third motor 50-4, and the driving gear is connected with the driven gear through a chain.

In this embodiment, a console is provided on the front side of the workbench, and control switches for controlling the first cylinder 1, the first motor 5, the third cylinder 13, the fourth cylinder 25, the fifth cylinder 26, the second motor 16, and the third motor 50-4, and switches for other power consumption components are provided on the console.

In this embodiment, the thickness of the bamboo chips is controlled by controlling the vertical distance between the cutting blade 50-3 and the lower press roll. The surface of the upper press roller and the surface of the lower press roller are provided with a plurality of bulges similar to the structure of the surface of the file, firstly, the bamboo green and tabasheer can be further roughened, secondly, a feeding effect can be given to the bamboo chips, and the bamboo chips can be brought into the slicing device by the extrusion of the two press rollers.

The bamboo tube sequentially passes through an outer bamboo joint, an inner bamboo joint and a bamboo sheet after planing on a conveyor, enters a chord-wise cutting mechanism, is sliced from one side of the green bamboo, is cut into a plurality of bamboo sheets, the bamboo sheets with the same thickness position of the cut bamboo sheets are uniformly collected in a bin 80, for example, the 1 st bin 80 is used for collecting the 1 st sliced bamboo sheet to obtain the bamboo sheet, the 2 nd bin 80 is used for collecting the 2 nd sliced bamboo sheet to obtain the bamboo sheet, the 3 rd bin 80 is used for collecting the 3 rd sliced bamboo sheet to obtain the bamboo sheet, the n-1 th sliced bamboo sheet is collected in the n-1 th bin 80, and the n-th sliced bamboo sheet is collected in the n-th bin 80 to obtain the bamboo sheet.

In this embodiment, n is 5-20, as shown in fig. 11 (a), the bamboo chips are sliced into 5 layers of bamboo chips, as shown in fig. 11 (b), the bamboo chips are sliced into 11 layers of bamboo chips, as shown in fig. 11 (c), the bamboo chips are sliced into 5 layers of bamboo chips, the length of the bamboo tube 10 to be processed is 200-1000mm, the thickness of the bamboo chips is 0.5-3mm, the length is 200-1000mm, and the water content of the bamboo tube to be processed is 50% -150%.

Example 2

As shown in fig. 12, the embodiment discloses a method for manufacturing a bamboo chip reorganization basic unit, which comprises the following steps:

s1, processing a bamboo tube by using the chordwise bamboo sheet preparation device in the embodiment 1 to obtain multi-layer bamboo sheets which are planed layer by layer along the wall thickness direction, dipping the multi-layer bamboo sheets with 18% of solid content of phenolic resin glue and 7% of glue application amount, and assembling according to the order of density up and down symmetry in the thickness direction to obtain a plate blank;

The number of layers of the bamboo tube to be processed is 5, the thickness of the bamboo sheet is 3mm, the length of the bamboo sheet is 500mm, and the water content of the bamboo tube to be processed is 100%;

S2, performing hot-press forming on the plate blank, wherein the temperature of the hot-press forming is 150 ℃, the hot-press process is performed mainly by the thickness of the plate blank, the time is kept for 50S every 1mm of compression, and finally the 12mm thick bamboo chip recombination basic unit is obtained.

The method for manufacturing the integrated board by utilizing the bamboo chip recombination basic unit comprises the steps of dividing the integrated board into a surface material and a square material;

The bamboo chip recombined basic units prepared by the same section of bamboo tube are integrated in a bamboo joint aligned mode, 25 groups of recombined basic units are assembled in width, 2 groups of recombined basic units are integrated in thickness, and then the ends of adjacent layers of recombined basic units are staggered and glued to obtain a surface material with a large-breadth flattened bamboo effect.

And integrating the bamboo chip recombination basic units prepared by the same section of bamboo tube in a bamboo joint alignment mode, combining 2 groups of recombination basic units in width, integrating 3 groups of recombination basic units in thickness, and then staggering the ends of the recombination basic units in adjacent layers to obtain the integrated board square timber.

The surface material and the square material prepared in the embodiment are tested, the bonding strength between the basic units of the surface material is 1.01MPa, the bonding strength between the basic units of the square material is 1.16MPa, (GB/T9846-2015 is equal to or greater than 0.70MPa, and 4.17-5.2.1 in GB/T17657-2013 is adopted for pretreatment, namely, water immersion is carried out for 24 hours at 20 ℃.

Example 3

S1, processing a bamboo tube by using the chordwise bamboo sheet preparation device in the embodiment 1 to obtain multi-layer bamboo sheets which are planed layer by layer along the wall thickness direction, dipping the multi-layer bamboo sheets with 16% of solid content of phenolic resin glue, controlling the glue application amount to be 5%, and assembling according to the sequence of the density up and down symmetry in the thickness direction to obtain a first plate blank and a second plate blank;

the number of layers of the bamboo tube to be processed is 15 in the wall thickness direction of the first plate blank, the number of layers of the bamboo tube to be processed is 20 in the wall thickness direction of the second plate blank, the thickness of the bamboo sheet is 0.5mm, the length of the bamboo sheet is 1000mm, and the water content of the bamboo tube to be processed is 150%;

S2, performing hot-press forming on the first plate blank, wherein the temperature of the hot-press forming is 110 ℃, the hot-press process is mainly performed by the thickness of the plate blank, the time is kept for 30S every 1mm of compression, and finally the first bamboo chip recombination basic unit with the thickness of 5mm is obtained.

And (3) carrying out hot-press forming on the second plate blank, wherein the temperature of the hot-press forming is 110 ℃, the hot-press process adopts a hot-press process leading by the thickness of the plate blank, the time is kept for 30s every 1mm of compression, and finally, the second bamboo chip recombination basic unit with the thickness of 5mm is obtained.

The bamboo chip reorganization basic units prepared by the same section of bamboo tube are integrated in a bamboo joint alignment mode, 5 groups of first bamboo chip reorganization basic units are assembled in width, 2 groups of first bamboo chip reorganization basic units are integrated in thickness, then the ends of adjacent layers of reorganization basic units are staggered and glued to obtain a plane material with a large-breadth flattening bamboo effect, and the number of bamboo chip layers of the reorganization basic units forming the plane material is 15.

And integrating the bamboo chip recombination basic units prepared by the same section of bamboo tube in a bamboo joint alignment mode, performing width upper assembly by 5 groups of second bamboo chip recombination basic units, performing thickness integration by 3 groups of second bamboo chip recombination basic units, and then performing end interleaving gluing on adjacent layers of recombination basic units to obtain an integrated board square material, wherein the number of bamboo chip layers of the recombination basic units forming the square material is 20.

The surface material and the square material prepared in the embodiment are tested, the bonding strength between the basic units of the surface material is 0.85MPa, the bonding strength between the basic units of the square material is 0.92MPa, (GB/T9846-2015 is equal to or greater than 0.70MPa, and 4.17-5.2.1 in GB/T17657-2013 is adopted for pretreatment, namely, water immersion is carried out for 24 hours at 20 ℃.

Example 4

S1, processing a bamboo tube by using the chordwise bamboo sheet preparation device in the embodiment 1 to obtain multi-layer bamboo sheets which are planed layer by layer along the wall thickness direction, dipping the multi-layer bamboo sheets with 20% of solid content of phenolic resin glue, controlling the glue application amount to be 8%, and assembling according to the sequence of the density up and down symmetry in the thickness direction to obtain a plate blank;

The number of layers of the bamboo tube to be processed is 11, the thickness of the bamboo sheet is 0.8mm, the length of the bamboo sheet is 1000mm, and the water content of the bamboo tube to be processed is 50%;

S2, performing hot-press forming on the plate blank, wherein the temperature of the hot-press forming is 150 ℃, the hot-press process is performed mainly by the thickness of the plate blank, the time is kept for 60S every 1mm of compression, and finally, the bamboo chip recombination basic unit with the thickness of 5mm is obtained.

The bamboo chip recombination basic units prepared by the same section of bamboo tube are integrated in a bamboo joint alignment mode, 30 groups of recombination basic units are assembled in width, 3 groups of recombination basic units are integrated in thickness, then the ends of adjacent layers of recombination basic units are staggered and glued to obtain a plane material with a large-breadth flattened bamboo effect, and the number of bamboo chip layers of the recombination basic units constituting the plane material is 11.

The bamboo chip recombination basic units prepared by the same section of bamboo tube are integrated in a bamboo joint alignment mode, 3 groups of recombination basic units are assembled in width, 2 groups of recombination basic units are integrated in thickness, then the ends of adjacent layers of recombination basic units are staggered and glued to obtain an integrated board square material, and the number of bamboo chip layers of the recombination basic units forming the square material is 11.

The surface material and the square material prepared in the embodiment are tested, the bonding strength between the basic units of the surface material is 1.05MPa, the bonding strength between the basic units of the square material is 1.14MPa, (GB/T9846-2015 is equal to or greater than 0.70MPa, and 4.17-5.2.1 in GB/T17657-2013 is adopted for pretreatment, namely, water immersion is carried out for 24 hours at 20 ℃.

The above description is only of the preferred embodiments of the present invention, and is not intended to limit the present invention. Any simple modification, variation and equivalent variation of the above embodiments according to the technical substance of the invention still fall within the scope of the technical solution of the invention.

Claims

1. The chordwise bamboo sheet preparation device is characterized by comprising a workbench (70) and a bamboo joint removing mechanism, a planing mechanism (40) and a chordwise cutting mechanism (50) which are sequentially arranged on the workbench (70) from front to back, wherein the bamboo joint removing mechanism comprises an outer bamboo joint removing mechanism and an inner bamboo joint removing mechanism, the outer bamboo joint removing mechanism and the planing mechanism are arranged above a transmission device, an inner bamboo joint removing cutter (8) for removing inner bamboo joints of a bamboo tube (10) to be processed is arranged on the inner bamboo joint removing mechanism, an outer bamboo joint removing cutter ((12) for removing outer bamboo joints of the bamboo tube (10) to be processed is arranged on the outer bamboo joint removing mechanism, the inner bamboo joint removing mechanism, the outer bamboo joint removing mechanism and the transmission device are arranged on the workbench (70), and a stock bin (80) is arranged below the chordwise cutting mechanism;

The inner bamboo joint removing mechanism comprises a clamping fixing device and an inner bamboo joint removing cutter (8), the clamping fixing device comprises a first air cylinder (1) and a second air cylinder (20), the first air cylinder (1) is horizontally arranged on a first air cylinder base (2-1), the first air cylinder base (2-1) is fixedly arranged on a reverse U-shaped air cylinder frame (3-1), the reverse U-shaped air cylinder frame (3-1) is arranged on a workbench (70) and is positioned right above a transmission device, a telescopic rod of the first air cylinder (1) is fixedly connected with a motor mounting seat (4), a first motor (5) is horizontally arranged on the motor mounting seat (4), an output shaft of the first motor (5) is fixedly connected with a rotating shaft, one side of the rotating shaft, which is close to the first motor (5), is sequentially provided with a first push plate (6-1), a first spring (7-1) and a second push plate (6-2), the first push plate (6-1) is fixedly arranged on the rotating shaft of the first motor (5), the second push plate (6-2) is sleeved on the rotating shaft, the first push plate (6-1) is fixedly connected with the first push plate (6-1) at one side, which the two ends of the first push plate (6-1) are fixedly connected with the first end (6-9), the first pushing plate (6-1), the second pushing plate (6-2) and the first motor (5) are provided with a first opening device for opening the inner bamboo joint removing cutter (8) to enable the cutter edge to contact the inner wall of the bamboo tube (10) to be processed, and the inner bamboo joint removing cutter (8) is horizontally arranged on the first opening device;

The second cylinder (20) is horizontally arranged on the second cylinder base (2-2), the second cylinder base (2-2) is fixedly arranged on the lifting device (3-2), the lifting device (3-2) is arranged on the workbench (70), the telescopic rod of the second cylinder (20) extends out of the second cylinder base (2-2) and is fixedly connected with the sliding rod (28), the sliding rod (28) is sequentially provided with a third push plate (6-3), a second spring (7-2) and a fourth push plate (6-4) in a penetrating way, the third push plate (6-3) is fixed on the sliding rod (28), the fourth push plate (6-4) is sleeved on the sliding rod (28) in a sliding way, two ends of the second spring (7-2) are fixedly connected with the third push plate (6-3) and the fourth push plate (6-4) respectively, the circumferential sides of the third push plate (6-3) and the fourth push plate (6-4) are connected with conical parts which are used for fixing the bamboo joint parts (10) to be abutted against the telescopic rod (20) of the cylinder (20) which is arranged in a conical manner, the conical part which is far away from the telescopic rod (20) of the cylinder (20) which is arranged in the cylinder which is matched with the conical cylinder (20), the first cylinder (1) and the second cylinder (20) are arranged in sequence along the running direction of the transmission device.

2. The chord-wise bamboo chip preparation device according to claim 1, wherein the first opening device comprises a plurality of first connecting rods (29), second connecting rods (30) and third connecting rods (31), the first connecting rods (29) are rotatably arranged on the periphery of the first pushing plate (6-1), the second connecting rods (30) are rotatably arranged on the periphery of the second pushing plate (6-2), the other ends of the first connecting rods (29) are slidably connected with the second connecting rods (30) and slide along the second connecting rods (30), the third connecting rods (31) are rotatably arranged on one side, far from the first motor (5), of the rotating shaft, the third connecting rods (31) are rotatably connected with the second connecting rods (30), and an inner bamboo joint removing cutter (8) which is horizontally arranged is rotatably arranged at the connecting position of the third connecting rods (31) and the second connecting rods (30);

the second opening device comprises a plurality of fourth connecting rods (32) and fifth connecting rods (33), wherein the fourth connecting rods (32) are rotatably arranged on the periphery of the third push plate (6-3), the fifth connecting rods (33) are rotatably arranged on the periphery of the fourth push plate (6-4), the other end parts of the fourth connecting rods (32) are slidably connected with the fifth connecting rods (33) and slide along the fifth connecting rods (33), and abutting pieces (35) of the other end parts of the fifth connecting rods (33) are connected.

3. The chord-wise bamboo chip manufacturing device according to claim 1, wherein a touch switch (36) is arranged on the workbench (70), the touch switch (36) is electrically connected with the second air cylinder (20), and the touch switch (36) is positioned on the workbench (70) in the middle of the transmission device.

4. The chord-wise bamboo chip preparation device according to claim 1, wherein two anti-backfire devices are arranged on the workbench (70), the anti-backfire devices are arranged on the workbench (70) at the middle position of the conveying device, one anti-backfire devices are arranged between the clamping and fixing devices, the other anti-backfire devices are arranged at the front side of the planing and separating mechanism (40), the anti-backfire devices comprise backfire check blocks (37) and supporting springs (38), the backfire check blocks (37) are obliquely arranged on the workbench (70) at the middle position of the conveying device along the running direction of the conveying device, one ends of the backfire check blocks (37) are rotatably connected with the table top of the workbench (70), and the other ends of the backfire check blocks (37) are supported on the workbench (70) through the supporting springs (38).

5. The chordwise bamboo sheet preparation apparatus as claimed in claim 1, wherein the outer bamboo joint removing mechanism comprises a third cylinder (13) and a second motor (16), the third cylinder (13) is connected with an outer bamboo joint removing cutter (12) through a blade fixer, the outer bamboo joint removing cutter (12) is a shape memory alloy blade, the outer bamboo joint removing cutter has two forms, one form is a cylinder shape surrounding the outer side of a bamboo tube (10) to be processed, the other form is a parallelogram, a cylinder body of the third cylinder (13) is fixedly connected with the end part of a vertical rod body of an L-shaped push rod (14), a horizontal rod body of the L-shaped push rod (14) is slidably arranged on a fixed sliding block (15), the fixed sliding block (15) is fixedly arranged on a workbench (70), the end part of the horizontal rod body of the L-shaped push rod (14) is fixedly connected with the middle position of a sliding rod, the sliding rod is obliquely arranged, a sliding groove is formed in the sliding groove, the sliding groove is slidably provided with a sliding block (18), the sliding block (18) is fixedly connected with the end part of a driving rod (17) of a driving rod, the driving rod (17) is fixedly connected with a rotary seat (24), the end part of the driving rod (17) is fixedly connected with a rotary seat (24), the rotary seat (23) is fixedly connected with the rotary seat (23), the novel outer bamboo joint cutter is characterized in that the cutter mounting sleeve is fixedly provided with an outer bamboo joint cutter (12), gaskets (21) positioned on two sides of the cutter mounting sleeve are sleeved on the cylindrical mounting seat (24), a third spring (22) is sleeved on a telescopic rod of the third air cylinder (13), and two ends of the third spring (22) are fixed between a cylinder body of the third air cylinder (13) and the U-shaped seat (23).

6. The chordwise bamboo sheet preparation device according to claim 5, wherein the outer bamboo joint removing mechanism further comprises a straightening device, the straightening device comprises a fourth cylinder (25) which is horizontally arranged, the bottom of the fourth cylinder (25) is arranged on a height adjusting device, a straightening roller (27) is fixedly arranged on a telescopic rod of the fourth cylinder (25), the outer wall of the straightening roller (27) is controlled to abut against one side of an annular outer bamboo joint removing cutter ((12)), and the height adjusting device controls the fourth cylinder (25) to lift, namely the straightening roller (27) lifts to straighten the outer bamboo joint removing cutter ((12)) from a cylindrical shape to a parallelogram.

7. The chordwise bamboo chip preparation device according to claim 1, wherein the chordwise cutting mechanism comprises a plurality of groups of upper and lower press rolls and cutting blades (50-3) arranged on the rear sides of the upper and lower press rolls, the cutting blades (50-3) are fixedly arranged on a workbench (70) in a welding mode, the upper and lower press rolls comprise an upper press roll (50-1) and a lower press roll (50-2), an upper gear is fixedly arranged on a rotating shaft of the upper press roll (50-1), a lower gear is fixedly arranged on a rotating shaft of the lower press roll (50-2), the upper gear is meshed with the lower gear, a transmission gear is further arranged on a rotating shaft of the lower press roll (50-2), all the transmission gears of the lower press rolls are connected through chains, a driven gear is fixedly arranged on a rotating shaft of the lower press roll (50-2) positioned at the forefront, a third motor (50-4) is arranged on the workbench, and a driving gear is fixedly arranged on an output shaft of the third motor (50-4), and the driving gear is connected with the driven gear.

8. A manufacturing method of a bamboo chip recombination basic unit is characterized in that the method comprises the following steps:

S1, processing a bamboo tube by using the chord-oriented bamboo sheet preparation device of any one of claims 1-7 to obtain multi-layer bamboo sheets which are planed layer by layer along the wall thickness direction, gluing the multi-layer bamboo sheets by adopting a wood industrial adhesive, and assembling according to the order of the density up and down symmetry in the thickness direction to obtain a plate blank;

9. A method of manufacturing an integrated board from the bamboo chip reconstituted base unit of claim 8, wherein the integrated board is divided into a face material and a square material;

Integrating bamboo chip recombination basic units prepared by the same section of bamboo tube in a bamboo joint alignment mode, combining 5-30 groups of recombination basic units in width, integrating 2-3 groups of recombination basic units in thickness, and then interleaving the ends of adjacent layers of recombination basic units to obtain a plane material with a large-breadth flattened bamboo effect, wherein the number of bamboo chip layers of the recombination basic units constituting the plane material is 3-15;