Radial bamboo cutting and smooth texture preparation device and new bamboo chip laminated material manufacturing method

Abstract

The present invention discloses a device for continuously preparing radial bamboo chips along the grain, comprising a device for clamping bamboo material on the upper surface of a workbench, devices for planing bamboo material along the grain on both sides of the workbench, a planing blade on the planing device, a supplementary cutting blade and a guide and cutting device at the material outlet of the planing tool, and the planing device connected to a stroke control mechanism for controlling the thickness of the planed bamboo chips. The present invention also discloses a manufacturing method for preparing a new type of bamboo chip laminate by planing bamboo chips by the above device. The planing device of the present invention works along the grain of the bamboo material, effectively improving the surface quality of the bamboo chip and reducing tool wear. According to the natural curvature of the bamboo material, two high-quality chips, bamboo middle chip a and bamboo green chip b, are obtained. The cross section of the bamboo middle chip a is drum-shaped, has high-quality fluidity and transition between chips, and is used for surface paving. The bamboo green chip b is narrow and slender, has high strength and good toughness, and is used for core layer paving. The prepared bamboo chip laminate has high mechanical strength, uniform density, and high bamboo material utilization rate.

Description

Technical Field

[0001] The invention belongs to the technical field of bamboo material processing, and in particular relates to a device for continuously preparing radial bamboo chips along the grain and a method for manufacturing a novel bamboo chip laminate. Background Art

[0002] With the prevalence of low-carbon concepts and the concept of "bamboo is better than wood", the research on high-quality bamboo products has gradually become more popular. Compared with wood, bamboo has the characteristics of high strength, good toughness, high strength, and beautiful texture. It is an ideal raw material for engineering structures and decorative materials. However, the characteristics of bamboo such as small diameter, hollowness, and thin walls restrict its industrial development. There are some shortcomings in the current method and device for planing bamboo chips. On the one hand, the directional texture of bamboo is ignored. During the preparation process, the cutting blade is parallel to the bamboo texture, which causes certain damage to the bamboo fiber strength and cannot meet the demand for high-quality bamboo chips. In addition, the knife is cut from green bamboo or yellow bamboo. The green bamboo has a high density and hardness, and the yellow bamboo has a high silicon content and is brittle and hard, which requires high tool strength. On the other hand, from the characteristics of bamboo, since the bamboo itself has an arc and the density of the green bamboo side is greater than that of the yellow bamboo side, the traditional radial bamboo chip unit always planes at a fixed angle during the preparation process, and completely radial planing cannot be guaranteed. The bamboo chips change from radial to chordal, and the green bamboo is thick and the yellow bamboo is thin, resulting in an uneven structure of the bamboo chips, which in turn affects the performance of the pressed board. In addition, the existing technology generally has the shortcomings of low processing efficiency and automation level. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a radial bamboo chip continuous preparation device along the grain and a new bamboo chip laminate manufacturing method in view of the shortcomings of the above-mentioned prior art. The preparation device works along the grain of the bamboo material, effectively improving the surface quality of the bamboo chip and reducing tool wear. According to the natural curvature of the bamboo material, two high-quality chips, bamboo middle chip a and bamboo green chip b, are obtained. The cross-section of bamboo middle chip a is drum-shaped, thick in the middle and thin on both sides, with high-quality fluidity and transitional bonding between chips, and is used for surface paving. The bamboo green chip b is narrow and slender, with high strength and good toughness, and is used for core layer paving. The prepared bamboo chip laminate has high mechanical strength, uniform density, and high bamboo material utilization rate.

[0004] In order to solve the above technical problems, the technical solution of the present invention is as follows: it comprises a workbench, the upper surface of the workbench is provided with a clamping and fixing device for clamping a semicircular bamboo material to be planed, the bottom of the workbench is located at the rear side of the clamping and fixing device and is provided with a silo for collecting bamboo chips obtained after planing, the opposite sides of the workbench are provided with a planing device for planing the bamboo material along the length direction of the bamboo material, the planing device is provided with a planing blade and a supplementary cutting blade, the angle between the planing blade and the cutting edge of the supplementary cutting blade is adjustable, the angle between the planing blade and the bamboo material processing surface is 30°-45°, and the angle between the supplementary cutting blade and the bamboo material processing surface is 10°-25°. The angle is 45°-60°, the planing blade planing along the length direction of the bamboo material, the supplementary cutting blade is inclined, planing the yellow side of the bamboo material obliquely along the length direction of the bamboo material, and two specifications of bamboo shavings are obtained after the planing blade and the supplementary cutting blade plan the bamboo material, and the bamboo shavings with a cross section approximately pentagonal are defined as bamboo middle pieces a, and the bamboo shavings with a cross section triangular are defined as bamboo green pieces b; the planing blade and the supplementary cutting blade are installed on the planing device through a rotating cylinder, and each time the bamboo material is planed once along the length direction, the rotating cylinder controls the planing blade and the supplementary cutting blade to rotate α degrees, and the planing device is connected with a planing stroke control mechanism for controlling the thickness of the planed bamboo material;

[0005] The α is obtained by the following formula: α=(90°×h) / r, where r represents the radius of the bamboo material, and h represents the thickness of the bamboo shavings obtained by planing the bamboo material;

[0006] A guide channel for guiding the bamboo middle piece a is also arranged above the planing blade, and a cutting blade is arranged in the guide channel. The cutting blade is controlled by a micro cylinder to cut off the bamboo middle piece a in the guide channel.

[0007] Preferably, the clamping and fixing device includes two baffles, namely baffle a and baffle b, wherein baffle a is fixed on the workbench, baffle b is slidably connected to the workbench through a spring, one end of the spring is fixedly connected to baffle b, and a hand rod is fixedly connected to baffle b, and the other end of the spring is fixedly connected to the workbench.

[0008] Preferably, the planing device includes a first cam, a second cam, a first L-shaped slide bar, a second L-shaped slide bar, a first sprocket, a chain a, a second sprocket, a first motor, a rotating cylinder, a cylinder air pipe, a planing blade, a second fixed slider, a first cam roller, a second cam roller, a cross slider, a first fixed slider, a second column and a third motor; the second sprocket is fixedly connected to the output shaft of the first motor, the first motor is fixedly installed on the workbench, the first sprocket is fixedly installed on the rotating shaft of the first cam, the first sprocket and the second sprocket are connected by a chain a, the first cam is rotatably installed on the third column, a slide groove is provided on the outer side of the first cam, the first cam roller is rotatably connected in the slide groove, The first cam roller is rollingly connected to one end of the first L-shaped slide bar, and the other end of the first L-shaped slide bar is slidingly connected to one end of the second L-shaped slide bar through a cross slide bar, and the other end of the second L-shaped slide bar is rollingly connected to the second cam roller, and the second cam roller is rollingly connected to the second cam, and the second cam is driven to rotate by a third motor, and the third motor is fixedly installed on the linear ratchet mechanism, and a rotating cylinder is fixedly connected to the cross slide bar, and the rotating cylinder is bolted to the blade mounting plate; the blade mounting plate is fixedly connected to the planing blade, and the planing direction of the planing blade is set along the length of the bamboo, and the rotating cylinder controls the angle between the blade mounting plate and the planing blade and the horizontal plane, and the rotating cylinder causes the planing blade to rotate and tilt toward the outside of the bamboo.

[0009] Preferably, the first L-shaped sliding bar is slidably mounted on the first column through the first fixed sliding bar, and the two ends of the first fixed sliding bar are fixed to the first column by screws, so that the first L-shaped sliding bar keeps sliding in the horizontal direction, and the second L-shaped sliding bar is slidably mounted on the second column through the second fixed sliding bar, and the two ends of the second fixed sliding bar are fixed to the second column by screws, so that the second L-shaped sliding bar keeps sliding in the vertical direction; a mounting plate is fixedly mounted on the side of the cross sliding bar close to the bamboo material by bolts, the rotating cylinder is fixed to the mounting plate by bolts, the blade mounting plate is connected to the rotating cylinder by bolts, the planing blade is bolted to the blade mounting plate, and the rotating cylinder is provided with a cylinder air pipe.

[0010] Preferably, the included angle between the planing blade and the bamboo material processing surface is 30°-45°, and the included angle between the supplementary cutting blade and the bamboo material processing surface is 45°-60°.

[0011] Preferably, the planing stroke control mechanism includes a four-bar linkage and a linear ratchet mechanism.

[0012] Preferably, the four-bar linkage mechanism includes an active rod, a first driven rod, a second driven rod and a driving pawl, one end of the active rod is fixedly connected to the connecting rod by a first hinge, the other end of the active rod and one end of the first driven rod are rotatably mounted on the second column through a second hinge, the other end of the first driven rod is rotatably mounted on the second column through a fourth hinge, the other end of the second driven rod is rotatably mounted on the second column through a fourth hinge, the other end of the driving pawl cooperates with the ratchet, a pawl spring is installed near the connecting end between the second driven rod and the driving pawl; a third sprocket is fixedly installed on one end of the connecting rod, the third sprocket is connected to the fourth sprocket through a chain b, the fourth sprocket is fixedly installed on the output shaft of the second motor, and the second motor is fixed on the lower side of the workbench; a check pawl is cooperated with the other side of the pawl relative to the driving pawl, the check pawl is installed on the base through a check pawl hinge, and a check pawl spring is also connected between the check pawl and the base.

[0013] Preferably, the linear ratchet mechanism includes a transmission belt, ratchets arranged on the outer peripheral side of the transmission belt, and inner teeth arranged on the inner peripheral side of the transmission belt, the inner teeth on the inner side of the transmission belt are meshed with two gears, the two gears are respectively an upper gear located at an upper position and a lower gear located at a lower position, the gear shaft of the gear is rotatably mounted on the second column, a third motor is fixedly mounted on the transmission belt, the output shaft of the third motor passes through the second cam and is rotatably connected to a sleeve, the lower side of the sleeve is fixed to the top end of the support spring, the bottom end of the support spring is slidably connected to the third slider, the third slider is slidably arranged in a sliding groove opened on the base, and the sliding groove is opened along the rotation direction of the ratchet.

[0014] The present invention also discloses a method for manufacturing bamboo chip laminated materials, which comprises:

[0015] S1. Using the above-mentioned radial bamboo shavings along-grain continuous preparation device, planing bamboo materials to obtain bamboo shavings of two specifications, collecting them separately, defining bamboo shavings with a cross section approximately pentagonal as bamboo middle slices a, and cutting them to a fixed length; defining bamboo shavings with a triangular cross section as bamboo green slices b, which are curled, narrow and elongated; then drying the bamboo middle slices a and bamboo green slices b at 60-100° C. to a moisture content of 8%-15%;

[0016] S2, using phenolic resin glue with a solid content of 18% to dip the dried radial bamboo chips, and then performing secondary drying at 50-70°C to a moisture content of 8%-15%, to obtain dipped bamboo middle slice a and dipped bamboo green slice b; the dipped bamboo middle slice a has a dipped amount of 6%-12%; the secondary drying temperature is 50-60°C, and the slice is dried to a moisture content of 10-15%; the dipped bamboo green slice b has a dipped amount of 4%-8%, the secondary drying temperature is 50-70°C, and the slice is dried to a moisture content of 8%-12%;

[0017] S3, first use bamboo middle piece a to lay the bottom layer in a directional manner, then lay the ball-shaped bamboo green piece b on the bottom layer as the core layer, and use bamboo middle piece a to lay the surface layer on the core layer in a directional manner, the mass ratio of the bottom layer, the core layer and the surface layer is 5:1:5, and then pre-press, if the board obtained after pre-pressing has obvious uneven density, use bamboo middle piece a or bamboo green piece b for supplementary laying;

[0018] S4, hot-pressing the board with uniform density obtained after pre-pressing, and then cutting, cooling and post-processing to obtain radial bamboo chip laminated materials.

[0019] Preferably, the hot pressing temperature in S4 is 135-150°C, the hot pressing process adopts a hot pressing process dominated by the slab thickness, the hot pressing time is determined according to the thickness of the plate after pre-pressing and the thickness of the plate after hot pressing forming, and the hot pressing is maintained for 40-60s for every millimeter of compression thickness.

[0020] Preferably, the length of the bamboo material in S1 is 500-2000 mm; the length of the bamboo piece a after being cut is 80-160 mm, and the thickness is 0.4 mm-1.2 mm.

[0021] Compared with the prior art, the present invention has the following effects:

[0022] 1. The radial bamboo chips along the grain continuous preparation device of the present invention works along the grain of the bamboo material, effectively improving the surface quality of the bamboo chips and reducing tool wear.

[0023] 2. The cutters on both sides of the bamboo are planed in parallel, increasing the efficiency by 100%. Two sets of cutters on the same side of the bamboo are planed continuously, and the planing return stroke has the characteristics of quick return, increasing the efficiency by 200%.

[0024] 3. The rotation angle of the planing tool of the present invention is adjusted after each planing to keep radial planing all the time, so that the density of the planed bamboo chips is uniform, which is more suitable for the preparation of bamboo chip laminated materials.

[0025] 4. In the planing device designed in the present invention, the planing stroke is driven by a cam and a novel ratchet mechanism so that the planing process becomes an intermittent motion, which conforms to the motion conditions of planing.

[0026] 5. The present invention does not remove bamboo nodes, but cuts the bamboo stems to achieve full utilization, theoretically increasing the utilization rate of the bamboo stems to 100%.

[0027] 6. According to the natural curvature of bamboo and the characteristics that the density of the green side is greater than that of the yellow side, the present invention adopts the planing main blade and the supplementary cutting blade to jointly process and obtain two specifications of high-quality bamboo chips. The bamboo middle chip a has the characteristics of being thick in the middle and thin on both sides, wherein the green side is thinner than the yellow side, balancing the transition difference in cell wall material between the green and yellow bamboos, having high-quality fluidity and transitional bonding between chips, and is used for the surface paving of the new bamboo chip laminated material. The green bamboo chip b is narrow and slender in shape, has high strength and good toughness, and is used for the core layer paving. It can greatly improve the mechanical strength, density uniformity and bamboo utilization rate of the bamboo chip laminated material.

[0028] 7. The present invention adopts the method of preparing bamboo thin slice units along the grain, which releases the growth stress of bamboo and maintains the fiber strength of bamboo. The prepared radial bamboo thin slices have no cracks, are not easy to break, have high surface quality and good decorative effect.

[0029] 8. The new bamboo chip laminated material prepared by the present invention has the advantages of uniform density, high strength, strong dimensional stability, good surface quality, etc.

[0030] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of a device for continuously preparing radial bamboo chips along the grain of the present invention.

[0032] Figure 2 The present invention is a schematic diagram of the main structure of the planing device of the device for continuously preparing radial bamboo chips along the grain.

[0033] Figure 3 The present invention Figure 2 Enlarged view of part A in the middle.

[0034] Figure 4 The invention is a schematic diagram of the side structure of a planing device of a device for continuously preparing radial bamboo chips along the grain.

[0035] Figure 5 The invention is a schematic side view of the structure of the planing stroke control mechanism of the device for continuously preparing radial bamboo chips along the grain.

[0036] Figure 6 The invention is a schematic side structural view of a linear ratchet mechanism of a device for continuously preparing radial bamboo chips along the grain.

[0037] Figure 7 The present invention is a schematic diagram of the cross-sectional structure of a workbench of a device for continuously preparing radial bamboo chips along the grain.

[0038] Figure 8 The present invention is a schematic structural diagram of the working process of planing bamboo by the device for continuously preparing radial bamboo chips along the grain.

[0039] Fig. 9 The invention is a schematic diagram of the connection between a planing blade, a blade mounting plate, a micro motor and a cutting blade of a device for continuously preparing radial bamboo chips along the grain.

[0040] Fig.10 The present invention is a schematic diagram of the connection of a planing blade, a supplementary cutting blade and a blade mounting plate of a device for continuously preparing radial bamboo chips along the grain from a front view.

[0041] Fig.11 It is a plan view of the preparation of the truncated bamboo middle piece a in Example 2 of the present invention.

[0042] Fig.12 It is a plan view of the novel bamboo chip laminated material prepared in Example 2 of the present invention.

[0043] Description of reference numerals:

[0044] 1—first cam; 2—first column; 3—first sprocket; 4—chain a; 5—second sprocket; 6—first motor; 7—first cam roller; 8—first fixed slider; 9—screw; 10—first L-shaped slider; 11—cross slider; 12—mounting plate; 13—rotating cylinder; 14—cylinder air pipe; 15—planing blade; 15-1—re-cutting blade; 15-2—cutting blade; 16—blade mounting plate; 17—bamboo to be planed; 18—spring; 19—hand lever; 20—workbench; 21—second fixed slider; 22—second L-shaped slider; 23—second cam roller; 24—second cam; 25—ratchet; 26—check pawl; 27—check pawl hinge; 28—second column Column; 29—micro motor; 30—guide channel; 33—connecting rod; 34—third sprocket; 35—chain b; 36—fourth sprocket; 37—second motor; 38—third motor; 39—base; 40—control panel; 41—third column; 44—pawl spring; 45-0—active rod, 45-1—first driven rod, 45-2—second driven connecting rod; 45-3—driving pawl; 45-4—first hinge; 45-5—second hinge; 45-6—third hinge; 45-7—fourth hinge; 46—third slider; 47—support spring; 48—sleeve; 50—transmission belt; 51—ratchet; 52—inner tooth; 53-1—upper gear; 53-2—lower gear; 54—gear shaft. DETAILED DESCRIPTION

[0045] Example 1

[0046] like Figure 1-10As shown, this embodiment discloses a radial bamboo chip continuous preparation device along the grain, including a workbench 20, the upper surface of the workbench 20 is provided with a clamping and fixing device for clamping a semicircular bamboo material 17 to be planed, the bottom of the workbench 20 is located at the rear side of the clamping and fixing device and is provided with a silo for collecting the bamboo chips obtained after planing, and the opposite sides of the workbench 20 are provided with a planing device for planing the bamboo material along the length direction of the bamboo material 17, and the planing device is provided with a planing blade 15 and a supplementary cutting blade 15-1, the angle between the planing blade 15 and the blade edge of the supplementary cutting blade 15-1 is 30°-45°, and the angle between the supplementary cutting blade 15-1 and the bamboo material processing surface is 45°-60° The planing blade 15 planed along the length direction of the bamboo material 17, and the supplementary cutting blade 15-1 was tilted and planed the yellow side of the bamboo material 17 obliquely along the length direction of the bamboo material 17. After the planing blade 15 and the supplementary cutting blade 15-1 planed the bamboo material 17, two specifications of bamboo shavings were obtained. The bamboo shavings with a cross section approximately pentagonal were defined as bamboo middle slices a, and the bamboo shavings with a cross section triangular were defined as bamboo green slices b. The planing blade 15 and the supplementary cutting blade 15-1 were installed on the planing device through a rotating cylinder 13. Each time the bamboo material 17 was planed once along the length direction, the rotating cylinder 13 controlled the planing blade 15 and the supplementary cutting blade 15-1 to rotate α degrees. The planing device was connected with a planing stroke control mechanism for controlling the thickness of the planed bamboo material.

[0047] The α is obtained by the following formula: α=(90°×h) / r, where r represents the radius of the bamboo material 17, and h represents the thickness of the bamboo shavings obtained by planing the bamboo material 17;

[0048] A guide channel for guiding the bamboo middle piece a is also provided above the planing blade 15 , and a cutting blade 15 - 2 is provided in the guide channel. The cutting blade 15 - 2 is controlled by a micro cylinder 29 to cut off the bamboo middle piece a passing through the guide channel 30 .

[0049] Preferably, the included angle between the planing blade 15 and the bamboo material processing surface is 30°, and the included angle between the supplementary cutting blade 15 - 1 and the bamboo material processing surface is 45°.

[0050] In this embodiment, multiple sets of planing blades 15 and supplementary cutting blades 15-1 can be designed according to the diameter of the bamboo material. Each set of planing blades 15 and supplementary cutting blades 15-1 has different included angles, and can be used for bamboo materials of different diameters, ensuring that the supplementary cutting blades 15-1 can plan the bamboo material at the best angle. The cutting blade 15-2 is a straight blade.

[0051] In this embodiment, the clamping and fixing device includes two baffles, namely baffle a and baffle b. Baffle a is fixed on the workbench 20, and baffle b is slidably connected to the workbench 20 through a spring 18. One end of the spring 18 is fixedly connected to the baffle b, and a hand rod 19 is fixedly connected to the baffle b. The other end of the spring 18 is fixedly connected to the workbench 20. By pulling the hand rod 19 away from the baffle a, and then placing the bamboo 17 between the two baffles, loosening the hand rod 19, the bamboo 17 to be planed is clamped and fixed on the workbench 20 under the drive of the elastic rebound force of the spring 18.

[0052] In this embodiment, the semicircular bamboo material 17 to be planed is obtained by planing a bamboo tube in half.

[0053] Specifically, a groove for accommodating a spring 18 is provided on the workbench 20, one end of the spring 18 is fixed to the inner wall of the groove, and the other end is fixed to the baffle b. The baffle b is located on the upper surface of the workbench 20 and is parallel to the baffle a. It is used to cooperate in clamping the bamboo material 17 to be planed.

[0054] In this embodiment, the planing device includes a first cam 1, a second cam 24, a first L-shaped slide bar 10, a second L-shaped slide bar 22, a first sprocket 3, a chain a 4, a second sprocket 5, a first motor 6, a rotary cylinder 13, a cylinder air pipe 14, a planing blade 15, a second fixed slide block 21, a first cam roller 7, a second cam roller 23, a cross slide block 11, a first fixed slide block 8, a second column 28 and a third motor 38;

[0055] A second sprocket 5 is fixedly connected to the output shaft of the first motor 6, the first motor 6 is fixedly installed on the workbench 20, a first sprocket 3 is fixedly installed on the rotating shaft of the first cam 1, the first sprocket 3 and the second sprocket 5 are connected by a chain a 4, the first cam 1 is rotatably installed on the third column 41, a slide groove is provided on the outer side of the first cam 1, a first cam roller 7 is rollingly connected in the slide groove, the first cam roller 7 is rollingly connected to one end of the first L-shaped slide bar 10, the other end of the first L-shaped slide bar 10 is slidingly connected to one end of the second L-shaped slide bar 22 through a cross slider 11, the other end of the second L-shaped slide bar 22 is rollingly connected to the second cam roller 23, the second cam roller 23 is rollingly connected to the second cam 24, and the second cam 24 is driven by the third motor 38 Rotate, the third motor 38 is fixed on the linear ratchet mechanism, the cross slider 11 is fixedly connected with a rotating cylinder 13, and the rotating cylinder 13 is bolted to the blade mounting plate 16; the blade mounting plate 16 is fixedly connected to the planing blade 15 and the supplementary cutting blade 15-1, the planing blade 15 is planed horizontally along the length of the bamboo 17 for the first time, and before each subsequent planing, the rotating cylinder 13 controls the planing blade 15 and the supplementary cutting blade 15-1 to rotate, specifically, the rotating cylinder 13 causes the planing blade 15 to rotate and tilt toward the outside of the bamboo 17 to be planed.

[0056] In this embodiment, a mounting plate 12 is fixedly installed on the side of the cross slide 11 close to the bamboo material by bolts, a rotating cylinder 13 is fixed on the mounting plate 12 by bolts, a blade mounting plate 16 is connected to the rotating cylinder 13 by bolts, a planing blade 15 is bolted to the blade mounting plate 16, and a cylinder air pipe 14 is provided on the rotating cylinder 13. The air intake of compressed air is controlled by the cylinder air pipe 14 to control the rotation angle of the rotating cylinder 13, so that the angle between the planing blade 15 and the horizontal direction can be adjusted, which is better suitable for always maintaining radial planing of the semicircular bamboo tube wall.

[0057] Specifically, the mounting plate 12 may be an iron plate.

[0058] In this embodiment, the first L-shaped sliding bar 10 is slidably installed on the first column 2 through the first fixed sliding block 8, and the two ends of the first fixed sliding block 8 are fixed to the first column 2 by screws 9, so that the first L-shaped sliding bar 10 keeps sliding in the horizontal direction, and the second L-shaped sliding bar 22 is slidably installed on the second column 28 through the second fixed sliding block 21, and the two ends of the second fixed sliding block 21 are fixed to the second column 28 by screws 9, so that the second L-shaped sliding bar 22 keeps sliding in the vertical direction.

[0059] In this embodiment, the first cam 1 and the second cam 24 are both disc-shaped cams.

[0060] In this embodiment, the blade mounting plate 16 is a U-shaped structure from the planing front and an L-shaped structure from the side, and the planing blade 15 is clamped at the opening position of the U-shaped structure.

[0061] In this embodiment, the first cam 1 is used to give the cross slider 11 an upward motion trajectory, and the second cam 24 is used to give the cross slider 11 a forward motion trajectory. The first cam 1 rotates under the drive of the first motor 6, and the stroke begins. The second cam 24 rotates under the drive of the third motor 38, and the stroke begins. The first cam roller 7 moves on the circular trajectory of the first cam 1 with a small diameter, and the second cam roller 23 moves on the circular trajectory of the second cam 24 with a large diameter. The motion trajectory of the cross slider 11 is a linear motion from the head end to the tail end of the bamboo material 17. The spacing on the cross slider 11 The connected planing blade 15 planed from the head end to the tail end of the bamboo material 17. When the first cam roller 7 contacts the circular track with a large diameter of the first cam 1, and the second cam roller 23 contacts the circular track with a small diameter of the second cam 24, the movement track of the cross slide 11 is to make an arc movement from the tail end of the bamboo material 17 upward to the head end of the bamboo material 17. At this time, the cross slide 11 will return to the head end of the bamboo material 17 at the initial position. During the arc movement of the cross slide 11, the planing stroke of the other set of planing devices moves linearly. The planing of the two sets of planing devices can be completely avoided, thereby realizing continuous and multiple planing of the bamboo material 17. Therefore, the two planing devices adopt an alternating planing working mode when planing the bamboo material.

[0062] In this embodiment, the bottoms of the first column 2 and the second column 28 are fixed on the base 39. The third column 41, the base 39, and the workbench 20 are all fixedly mounted on the ground.

[0063] In this embodiment, the vertical cross-section of the workbench 20 at the position for clamping the bamboo material 17 is an inverted funnel-shaped structure, which is beneficial for the planing blade 15 of the planing device not to touch the workbench 20 when rotating, and does not affect normal planing.

[0064] In this embodiment, the planing stroke control mechanism includes a four-bar linkage and a linear ratchet mechanism; the four-bar linkage includes an active rod 45-0, a first driven rod 45-1, a second driven connecting rod 45-2 and a driving pawl 45-3, one end of the active rod 45-0 is fixedly connected to the connecting rod 33 through a first hinge 45-4, the other end of the active rod 45-0 and one end of the first driven rod 45-1 are rotatably mounted on the second column 28 through a second hinge 45-5, and the other end of the first driven rod 45-1 is rotatably mounted on the second column 28. The end is connected with one end of the second driven link 45-2 and one end of the driving pawl 45-3 through a third hinge 45-6, the other end of the second driven link 45-2 is rotatably mounted on the second column 28 through a fourth hinge 45-7, the other end of the driving pawl 45-3 cooperates with the ratchet 25, and a pawl spring 44 is installed near the connecting end between the second driven link 45-2 and the driving pawl 45-3; a third sprocket 34 is fixedly mounted on one end of the connecting rod 33, the third sprocket 34 is connected to the fourth sprocket 36 through a chain b 35, and the fourth sprocket 36 is fixedly mounted on the output shaft of the second motor 37, and the second motor 37 is fixed on the lower side of the workbench 20; a check pawl 26 is cooperated with the other side of the pawl 25 relative to the driving pawl 45-3, the check pawl 26 is mounted on the base 39 through the check pawl hinge 27, and a check pawl spring is also connected between the check pawl 26 and the base 39;

[0065] The working process of the four-bar linkage is as follows: the output shaft of the second motor 37 rotates, driving the fourth sprocket 36 to rotate, driving the third sprocket 34 to rotate through the chain b 35, the rotation of the third sprocket 34 drives the connecting rod 33 to rotate, the rotation of the connecting rod 33 drives the active rod 45-0 to rotate, the rotation of the active rod 45-0 drives the first driven rod 45-1, the second driven connecting rod 45-2 and the driving pawl 45-3 to work together, and the driving pawl 45-3 moves the ratchet 51 to drive the ratchet to move.

[0066] The linear ratchet mechanism includes a transmission belt 50, a ratchet 51 arranged on the outer peripheral side of the transmission belt 50, and an inner tooth 52 arranged on the inner peripheral side of the transmission belt 50, the inner tooth 52 on the inner side of the transmission belt 50 is meshed with two gears, the two gears are respectively an upper gear 53-1 located at the upper position and a lower gear 53-2 located at the lower position, the gear shaft 54 ​​of the gear is rotatably mounted on the second column 28, the transmission belt 50 is fixedly mounted with a third motor 38, the output shaft of the third motor 38 passes through the second cam 24 and is rotatably connected with a sleeve 48, the lower side of the sleeve 48 is fixed to the top end of the support spring 47, the bottom end of the support spring 47 is slidably connected to the third slider 46, the third slider 46 is slidably arranged in a sliding groove opened on the base 39, and the sliding groove is opened along the rotation direction of the ratchet 51;

[0067] Specifically, the transmission belt 50 is a crawler-type transmission belt.

[0068] Specifically, the third sliding block 46 is a T-shaped structural sliding block, and the sliding groove is a T-shaped sliding groove matched with the T-shaped structural sliding block.

[0069] In this embodiment, a control panel 40 is installed on the workbench 20, and switches for respectively controlling the first motor 6, the second motor 37, the third motor 38, and the rotating cylinder 13 are provided on the control panel 40. Further explanation, since the planing device and the planing stroke control mechanism have two groups, the corresponding first motor 6, the second motor 37, the third motor 38, and the rotating cylinder 13 also have two groups, which are controlled separately.

[0070] Since the third motor 38 and the second cam 24 have their own weight, a support spring 47 is provided at the end of the output shaft of the third motor 38 to provide an upward support to the third motor 38 and the second cam 24. When the bamboo 17 is started to be planed, the third motor 38 is on the right side of the linear ratchet mechanism (the planing period). Each time the bamboo is planed from left to right, the driving pawl 45-3 of the four-bar linkage mechanism moves a ratchet 51 downward, and the linear ratchet mechanism drives the third motor 38 to move downward the distance of a ratchet 25. The support spring 47 is compressed during the downward movement of the third motor 38, and the elastic force of the support spring 47 is absorbed by the non-return pawl 40. After multiple planings, the third motor 38 continues to move downward until the third motor 38 needs to move from the linear ratchet. The right side of the mechanism is transferred to the left side of the linear ratchet mechanism. At this time, the third motor 38 and the support spring 47 move to the left side of the linear ratchet mechanism through the third slider 46. At this time, the planing of the bamboo 17 is completed. The third motor 38 is located on the left side of the linear ratchet mechanism. The support spring 47 is compressed to the maximum elastic force. When it can no longer be absorbed by the non-return pawl 40, the support spring 47 moves upward against the third motor 38 under the elastic force of the elastic force recovery. The third motor 38 will rise rapidly under the action of the support spring 47, playing the role of empty travel quick return, improving efficiency. Finally, repeat the above process when the next bamboo 17 to be planed is installed and fixed.

[0071] When the third motor 38 moves downward by a ratchet distance, it drives the second cam 24 to move downward by a ratchet distance, and the second cam roller 23, the second L-shaped slide bar 22, and the cross slide block 11 that are rollingly matched with the second cam 24 all move downward by a ratchet distance. Since the planing blade 15 and the supplementary cutting blade 15-1 are fixed to the cross slide block 11 through the blade mounting plate 16 and the rotating cylinder 13, the planing blade 15 and the supplementary cutting blade 15-1 will also move downward by a ratchet distance, thereby realizing the layer-by-layer planing of bamboo. Therefore, according to actual needs, the thickness of the planed bamboo shavings can be designed to have a ratchet distance. Generally speaking, when the linear ratchet mechanism moves through a cycle (i.e., the third motor 38 moves from the top of the linear ratchet mechanism to the bottom and turns, and quickly rises back to the starting position), a semicircular bamboo tube is planed.

[0072] The working process of planing bamboo in this embodiment is as follows: before starting planing, place the bamboo 17 with a 180° curved cross section horizontally between the two baffles of the workbench 20 for clamping, and set the planing blade 15 parallel to the a-section of the bamboo 17. Start the two planing devices in sequence, and the two planing devices realize alternate planing of the two a-sections of the bamboo 17. Specifically, when the planing blades of the first group of planing devices have processed to half of the length of the bamboo, the second group of planing devices is started, and the second group of planing blades begins planing. After the planing device completes the first planing, control the rotary cylinder to rotate toward the outside of the bamboo 17, drive the planing blade 15 to rotate α degrees, and then perform the second planing. In the process of planing the bamboo to obtain bamboo shavings, the supplementary cutting blade 15-1 bevels the green side of the bamboo shavings, such as Figure 8 The middle planing blade 15 planed along the c line, and the supplementary cutting blade 15-1 beveled along the d line, beveled to cut a bamboo shavings with a triangular cross section, and then the second planing was installed to rotate the planing blade 15 by α degrees, and then planed. Afterwards, each time the planing device completed planing of the bamboo 17, it controlled the rotating cylinder to rotate toward the outside of the bamboo 17, driving the planing blade 15 to rotate α degrees until the planing of the bamboo 17 was completed. Two specifications of bamboo shavings were obtained, one of which had a cross section approximately pentagonal, defined as the middle bamboo piece a, and the other had a cross section triangular, defined as the green bamboo piece b, which was mainly the green bamboo part of the bamboo. The cutting blade 15-2 was controlled by the micro cylinder 29 to shorten the middle bamboo piece a according to the pre-designed interval time, and the shortened bamboo shavings were collected in the silo. After planing one semicircular bamboo material 17, fix another bamboo material 17 and repeat the planing, so as to achieve continuous planing and obtain bamboo chips of two specifications.

[0073] Example 2

[0074] This embodiment discloses a novel method for manufacturing bamboo chip laminated materials, the method comprising:

[0075] S1. Use the radial bamboo chip unit preparation device disclosed in Example 1 to obtain bamboo chips of two specifications. The thickness of the bamboo chips is 1mm. Collect them separately, define the bamboo chips with a cross section approximately pentagonal as bamboo middle chips a, and the angle between the planing blade and the bamboo processing surface is 30°. Cut them to a fixed length of 100mm. Define the bamboo chips with a triangular cross section as bamboo green chips b; the angle between the cutting blade and the bamboo processing surface is 45°, and no cutting is required, and they are curled, narrow and slender; bamboo green chips b are naturally curled and not cut, and then the bamboo middle chips a and bamboo green chips b are dried at 100°C to a moisture content of 8%;

[0076] S2, using phenolic resin glue with a solid content of 18% to dip the dried radial bamboo slices, and then performing secondary drying at 60°C to a moisture content of 10%, to obtain dipped bamboo middle slice a and dipped bamboo green slice b; the dipped bamboo middle slice a has an amount of 8% dipped, a secondary drying temperature of 60°C, and is dried to a moisture content of 12%; the dipped bamboo green slice b has an amount of 7%, a secondary drying temperature of 70°C, and is dried to a moisture content of 10%;

[0077] S3, first use bamboo middle piece a to lay the bottom layer in a directional manner, then lay the ball-shaped bamboo green piece b core layer on the bottom layer, and use bamboo middle piece a to lay the surface layer on the core layer in a directional manner, the mass ratio of the bottom layer, the core layer and the surface layer is 5:1:5, and then pre-press, if the board obtained after pre-pressing has obvious uneven density, use bamboo piece a for patching;

[0078] S4. Hot-press the pre-pressed board with uniform density, and then cut, cool and post-process it to obtain radial bamboo chip laminated material; the hot-pressing temperature is 150°C, the thermal process is a hot-pressing process dominated by the thickness of the slab, and the hot-pressing time is determined according to the thickness of the pre-pressed board and the thickness of the hot-pressed board, and the time is 50s for every millimeter of thickness.

[0079] The mechanical properties of the bamboo chips laminated timber prepared in this example are shown in Table 1.

[0080] Table 1 Mechanical properties data of bamboo chip laminates of three densities prepared in this embodiment

[0081]

[0082] As shown in Table 1, the three densities of the bamboo chip laminates prepared in this embodiment all meet the performance requirements of the national standard GB / T41715-2022 for oriented strand board.

[0083] Example 3

[0084] This embodiment discloses a novel method for manufacturing radial bamboo chip laminated materials, the method comprising:

[0085] S1. Use the radial bamboo chip preparation device disclosed in Example 1 to obtain bamboo chips of two specifications. The thickness of the bamboo chips is 1mm. Collect them separately, define the bamboo chips with a cross section approximately pentagonal as bamboo middle chips a, and the angle between the planing blade and the bamboo processing surface is 30°. Cut them to a fixed length of 120mm. Define the bamboo chips with a triangular cross section as bamboo green chips b; the angle between the cutting blade and the bamboo processing surface is 45°, and no cutting is required, and they are curled, narrow and slender; bamboo green chips b are naturally curled and not cut, and then the bamboo middle chips a and bamboo green chips b are dried at 80°C to a moisture content of 12%;

[0086] S2, using phenolic resin glue with a solid content of 18% to dip the dried radial bamboo slices, and then performing secondary drying at 60°C until the moisture content is 12%, to obtain dipped bamboo middle slice a and dipped bamboo green slice b; the dipped bamboo middle slice a has a dipping amount of 10%, a secondary drying temperature of 55°C, and is dried to a moisture content of 12%; the dipped bamboo green slice b has a dipping amount of 9%, a secondary drying temperature of 65°C, and is dried to a moisture content of 9%;

[0087] S3, first use bamboo middle piece a to lay the bottom layer in a directional manner, then lay the ball-shaped bamboo green piece b core layer on the bottom layer, and use bamboo middle piece a to lay the surface layer on the core layer in a directional manner, the mass ratio of the bottom layer, the core layer and the surface layer is 5:1:5, and then pre-press, if the board obtained after pre-pressing has obvious uneven density, use bamboo piece a for patching;

[0088] S4. Hot-press the pre-pressed board with uniform density, and then cut, cool and post-process it to obtain radial bamboo chip laminated material; the hot-pressing temperature is 135°C, the thermal process is a hot-pressing process dominated by the thickness of the slab, the hot-pressing time is determined by the thickness of the pre-pressed board and the thickness of the hot-pressed board, and the hot-pressing is maintained for 50s for every millimeter of compression thickness.

[0089] The bamboo chips laminated material prepared in this embodiment is as follows Fig.11 As shown, after testing, the mechanical properties data are shown in Table 2.

[0090] Table 2 Mechanical properties data of bamboo chip laminates of three densities prepared in this embodiment

[0091]

[0092] As shown in Table 2, the three densities of the bamboo chip laminates prepared in this embodiment all meet the performance requirements of the national standard GB / T41715-2022 for oriented strand board.

[0093] Example 4

[0094] This embodiment discloses a novel method for manufacturing bamboo chip laminated materials, the method comprising:

[0095] S1. Use the radial bamboo chip unit preparation device disclosed in Example 1 to obtain bamboo chips of two specifications, with a thickness of 0.6 mm. Collect them separately, define the bamboo chip with a cross section approximately pentagonal as bamboo middle chip a, and the angle between the planing blade and the bamboo processing surface is 30°, and cut them to a fixed length of 100 mm. Define the bamboo chip with a triangular cross section as bamboo green chip b; the angle between the supplementary cutting blade and the bamboo processing surface is 45°, and no cutting is required, and it is a curled narrow and slender shape; bamboo green chip b is naturally curled and not cut, and then the bamboo middle chip a and bamboo green chip b are dried at 60°C to a moisture content of 15%;

[0096] S2, using phenolic resin glue with a solid content of 18% to dip the dried dipped radial bamboo slices, and then performing secondary drying at 60°C until the moisture content is 10%, to obtain dipped bamboo middle slice a and dipped bamboo green slice b; the dipped bamboo middle slice a has a dipping amount of 10%, a secondary drying temperature of 50°C, and is dried to a moisture content of 15%; the dipped bamboo green slice b has a dipping amount of 9%, a secondary drying temperature of 70°C, and is dried to a moisture content of 10%;

[0097] S3, first use bamboo middle piece a to lay the bottom layer in a directional manner, then lay the ball-shaped bamboo green piece b core layer on the bottom layer, and use bamboo middle piece a to lay the surface layer on the core layer in a directional manner, the mass ratio of the bottom layer, the core layer and the surface layer is 5:1:5, and then pre-press, if the board obtained after pre-pressing has obvious uneven density, use bamboo piece a to pave, and enter S4;

[0098] S4. Hot-press the pre-pressed board with uniform density, and then cut, cool and post-process it to obtain radial bamboo chip laminated material; the hot-pressing temperature is 150°C, the thermal process is a hot-pressing process dominated by the thickness of the slab, and the hot-pressing time is determined by the thickness of the pre-pressed board and the thickness of the hot-pressed board, and the time is 50s for every millimeter of thickness.

[0099] The bamboo chips laminated material prepared in this embodiment is as follows Fig.11 As shown, after testing, the mechanical properties data are shown in Table 3.

[0100] Table 3 Mechanical properties data of bamboo chip laminated materials with three densities prepared in this example

[0101]

[0102] After testing, the radial bamboo chip laminates prepared in this embodiment all meet the performance requirements of the national standard GB / T41715-2022 for oriented strand board.

[0103] The above is only a preferred embodiment of the present invention and does not limit the present invention in any way. Any simple modification, change and equivalent change made to the above embodiment according to the technical essence of the invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A device for continuously preparing radial bamboo chips along the grain, characterized in that: The invention comprises a workbench (20), wherein the upper surface of the workbench (20) is provided with a clamping and fixing device for clamping a semicircular bamboo material (17) to be planed, and the bottom of the workbench (20) is provided with a material bin for collecting bamboo chips obtained after planing, and the workbench (20) is provided with a planing device for planing the bamboo material (17) along the length direction of the bamboo material (17) on opposite sides of the workbench (20). The planing device is provided with a planing blade (15) and a supplementary cutting blade (15-1), and the angle between the blade edges of the planing blade (15) and the supplementary cutting blade (15-1) is adjustable, the angle between the planing blade (15) and the bamboo material processing surface is 30°-45°, the angle between the supplementary cutting blade (15-1) and the bamboo material processing surface is 45°-60°, and the planing blade (15) is provided with a planing blade (15) and a supplementary cutting blade (15-1). The blade (15) is planed along the length direction of the bamboo material (17), and the supplementary cutting blade (15-1) is inclinedly arranged to plan the yellow side of the bamboo material (17) obliquely along the length direction of the bamboo material (17). After the bamboo material (17) is planed by the planing blade (15) and the supplementary cutting blade (15-1), two types of bamboo shavings are obtained. The bamboo shavings with a cross section approximately pentagonal are defined as bamboo middle slices a, and the bamboo shavings with a cross section of triangular are defined as bamboo green slices b. The planing blade (15) and the supplementary cutting blade (15-1) are installed on the planing device through a rotating cylinder (13). Each time the bamboo material (17) is planed once along the length direction, the rotating cylinder (13) controls the planing blade (15) and the supplementary cutting blade (15-1) to rotate α degrees. The planing device is connected to a planing stroke control mechanism for controlling the thickness of the planed bamboo material. The α is obtained by the following formula: α = (90° × h) / r, r represents the radius of the bamboo material (17), and h represents the thickness of the bamboo shavings obtained by planing the bamboo material (17); A guide channel for guiding the bamboo middle piece a is also provided above the planing blade (15), a cutting blade (15-2) is provided in the guide channel, and the cutting blade (15-2) is controlled by a micro cylinder (29) to cut off the bamboo middle piece a in the guide channel (30); The planing stroke control mechanism includes a four-bar linkage and a linear ratchet mechanism; The four-bar linkage comprises an active rod (45-0), a first driven rod (45-1), a second driven connecting rod (45-2) and a driving pawl (45-3); one end of the active rod (45-0) is fixedly connected to the connecting rod (33) via a first hinge (45-4); the other end of the active rod (45-0) and one end of the first driven rod (45-1) are rotatably mounted on a second column (28) via a second hinge (45-5); the other end of the first driven rod (45-1) is connected to one end of the second driven connecting rod (45-2) and one end of the driving pawl (45-3) via a third hinge (45-6); the other end of the second driven connecting rod (45-2) is rotatably mounted on the second column (28) via a fourth hinge (45-7); the driving pawl (45-3) is rotatably mounted on the second column (28) via a fourth hinge (45-8); -3) is matched with a ratchet, and a ratchet spring (44) is installed between the second driven connecting rod (45-2) and the driving ratchet (45-3) near the connecting end; a third sprocket (34) is fixedly installed at one end of the connecting rod 33, and the third sprocket (34) is connected to the fourth sprocket (36) through a chain b (35), and the fourth sprocket (36) is fixedly installed on the output shaft of the second motor (37), and the second motor (37) is fixed on the lower side of the workbench (20); a non-return pawl (26) is matched with the other side of the ratchet relative to the driving ratchet (45-3), and the non-return pawl (26) is installed on the base (39) through a non-return pawl hinge (27), and a non-return pawl spring is also connected between the non-return pawl (26) and the base (39); The linear ratchet mechanism comprises a transmission belt (50), ratchet teeth (51) arranged on the outer peripheral side of the transmission belt, and inner teeth (52) arranged on the inner peripheral side of the transmission belt. The inner teeth (52) on the inner side of the transmission belt (50) mesh with two gears, the two gears being an upper gear (53-1) located at an upper position and a lower gear (53-2) located at a lower position. The gear shaft (54) of the gear is rotatably mounted on the second column (28). A third motor (38) is fixedly mounted on the transmission belt. The output shaft of the third motor (38) passes through the second cam (24) and is rotatably connected to a sleeve (48). The lower side of the sleeve (48) is fixed to the top end of a support spring (47). The bottom end of the support spring (47) is slidably connected to a third slider (46). The third slider (46) is slidably arranged in a sliding groove opened on a base (39). The sliding groove is opened along the rotation direction of the ratchet teeth (51).

2. The device for continuously preparing radial bamboo chips along the grain according to claim 1, characterized in that: The clamping and fixing device comprises two baffles, namely baffle a and baffle b, wherein baffle a is fixed on a workbench (20), baffle b is slidably connected to the workbench (20) via a spring (18), one end of the spring (18) is fixedly connected to baffle b, and a hand lever (19) is fixedly connected to baffle b, and the other end of the spring (18) is fixedly connected to the workbench (20).

3. The device for continuously preparing radial bamboo chips along the grain according to claim 1, characterized in that: The planing device comprises a first cam (1), a second cam (24), a first L-shaped slide bar (10), a second L-shaped slide bar (22), a first sprocket wheel (3), a chain a (4), a second sprocket (5), a first motor (6), a rotating cylinder (13), a cylinder air pipe (14), a second fixed slider (21), a first cam roller (7), a second cam roller (23), a cross slider (11), a first fixed slider (8), a second column (28) and a third motor (38); the second sprocket (5) is fixedly connected to the output shaft of the first motor (6); the first motor (6) is fixedly mounted on the workbench (20); the first sprocket (3) is fixedly mounted on the rotating shaft of the first cam (1); the first sprocket (3) and the second sprocket (5) are connected via a chain a (4); the first cam (1) is rotatably mounted on the third column (41); a slide groove is provided on the outer side of the first cam (1); the first cam roller (7) is rotatably connected in the slide groove; the first cam roller (7) is rotatably connected to one end of a first L-shaped slide bar (10); the other end of the first L-shaped slide bar (10) is rotatably connected to the first cam roller (7); One end is slidably connected to one end of a second L-shaped slide bar (22) through a cross slide bar (11); the other end of the second L-shaped slide bar (22) is rollingly connected to a second cam roller (23); the second cam roller (23) is rollingly connected to a second cam (24); the second cam (24) is driven to rotate by a third motor (38); the third motor (38) is fixedly mounted on a linear ratchet mechanism; a rotating cylinder (13) is fixedly connected to the cross slide bar (11); the rotating cylinder (13) is bolted to a blade mounting plate (16); the blade mounting plate (16) is fixedly connected to a planing blade (15) and a supplementary cutting blade (15-1); the planing blade (15) is horizontally planed along the length of the bamboo material (17) for the first time; before each subsequent planing, the rotating cylinder (13) controls the planing blade (15) and the supplementary cutting blade (15-1) to rotate; the rotating cylinder (13) controls the planing blade (15) to rotate and tilt toward the outside of the bamboo material (17); The cutting blade (15-2) is a straight blade, the micro cylinder (29) is fixedly mounted on the blade mounting plate (16), and the cylinder telescopic rod of the micro cylinder (29) is fixedly connected to the cutting blade (15-2).

4. The device for continuously preparing radial bamboo chips along the grain according to claim 3, characterized in that: The first L-shaped slide bar (10) is slidably mounted on the first column (2) via a first fixed slide block (8), and both ends of the first fixed slide block (8) are fixed to the first column (2) via screws (9), so that the first L-shaped slide bar (10) can keep sliding in the horizontal direction; the second L-shaped slide bar (22) is slidably mounted on the second column (28) via a second fixed slide block (21), and both ends of the second fixed slide block (21) are fixed to the second column (28) via screws (9), so that the second L-shaped slide bar (22) can keep sliding in the vertical direction; a mounting plate (12) is fixedly mounted on the side of the cross slide block (11) close to the bamboo material via bolts, a rotary cylinder (13) is fixed to the mounting plate (12) via bolts, a blade mounting plate (16) is connected to the rotary cylinder (13) via bolts, a planing blade (15) is connected to the blade mounting plate (16) via bolts, and a cylinder air pipe (14) is provided on the rotary cylinder (13).

5. A method for manufacturing bamboo chip laminated timber, characterized in that: S1. Planing bamboo (17) using the radial bamboo chips along the grain continuous preparation device according to any one of claims 1 to 4 to obtain bamboo chips of two specifications, which are collected separately, and bamboo chips with a cross section approximately pentagonal are defined as bamboo middle chips a, which are cut to a fixed length; bamboo chips with a cross section of triangular shape are defined as bamboo green chips b, which are curled, narrow and elongated; then the bamboo middle chips a and bamboo green chips b are dried at 60-100° C. to a moisture content of 8%-15%; S2, using phenolic resin glue with a solid content of 16%-20% to dip the dried radial bamboo chips, and then secondary drying them at 50-70° C. until the moisture content is 8%-15%, to obtain dipped bamboo middle slices a and dipped bamboo green slices b; The amount of the impregnated bamboo piece a is 6%-12%; the secondary drying temperature is 50-60° C., and the moisture content is dried to 10%-15%; The amount of the impregnated bamboo green sheet b is 4%-8%, the secondary drying temperature is 50-70°C, and the moisture content is dried to 8%-12%; S3, first use bamboo middle piece a to lay the bottom layer in a directional manner, then lay the ball-shaped bamboo green piece b on the bottom layer as the core layer, and use bamboo middle piece a to lay the surface layer on the core layer in a directional manner, the mass ratio of the bottom layer, the core layer and the surface layer is 5:1:5, and then pre-press, if the board obtained after pre-pressing has obvious uneven density, use bamboo middle piece a or bamboo green piece b for supplementary laying; S4, hot-pressing the board with uniform density obtained after pre-pressing, and then cutting, cooling and post-processing to obtain radial bamboo chip laminated materials.

6. The method for manufacturing bamboo chip laminated timber according to claim 5, characterized in that: The hot pressing temperature described in S4 is 135-150°C, and the hot pressing process adopts a hot pressing process dominated by the thickness of the slab. The hot pressing time is determined according to the thickness of the plate after pre-pressing and the thickness of the plate after hot pressing forming. The hot pressing is maintained for 40-60s for each millimeter of compression thickness.

7. The method for manufacturing bamboo chip laminated timber according to claim 5, characterized in that: The length of the bamboo material in S1 is 500-2000 mm; the length of the bamboo piece a after being cut is 80-160 mm, and the thickness is 0.4 mm-1.2 mm.

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