Long bamboo section extruding and flattening equipment

Abstract

The invention discloses long bamboo section extruding and flattening equipment, and belongs to the technical field of bamboo processing. The long bamboo section extruding and flattening equipment comprises a machine frame, a feeding module, an extruding and flattening module and a discharging module, the feeding module, the extruding and flattening module and the discharging module are sequentially arranged on the machine frame, and the extruding and flattening module comprises a first frame plate, is horizontally and fixedly connected to the top of the machine frame and is formed by splicing a horizontal section and an inclined section; the u-shaped bin is arranged at the top of the first frame plate, and the multiple guide pieces are arranged along the inner side wall of the u-shaped bin in an array mode; the guide rod is arranged in the length direction of the u-shaped bin; the extrusion assembly comprises a conical extrusion seat, a conical slow flat tongue and a duckbilled extrusion cover, the conical extrusion seat is fixedly connected with one end of the guide rod, the duckbilled extrusion cover is fixedly connected with the u-shaped bin, the slotted bamboo sections are extruded into the u-shaped bin through the feeding module, a plurality of guide sheets are uniformly arranged in the u-shaped bin, and the outer walls of the bamboo sections are gradually wrapped and pressed, so that the outer walls of the bamboo sections are extruded into the u-shaped bin. Internal stress is released in a plurality of site steps in the longitudinal advancing process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bamboo processing, and particularly relates to a long bamboo section extrusion flattening device. BACKGROUND

[0002] As a fast-growing renewable resource, bamboo has great application potential under the background of "bamboo replacing plastic". In bamboo processing, cylindrical long bamboo sections need to be flattened for furniture, building or board production. Before extrusion flattening, traditional bamboo products need to be sawn and jointed by a sawing and jointing device, and then the processed long bamboo sections are treated with high-temperature steam. Due to the difficulty in flattening the cylindrical long bamboo sections, the bamboo is cut into thin strips or short sections and then glued and pressed into shape. This process has the problems of low utilization rate of raw materials, destruction of fiber continuity, large amount of adhesive, high cost, increased environmental pollution risk, and limited mechanical properties of bamboo-wood plywood, which cannot meet the demand for high-end structural materials.

[0003] Existing cylindrical long bamboo section flattening technologies such as rolling or local stamping attempt to simplify the process, but still have the risk of significant stress concentration. The rolling machine directly applies pressure through the extrusion roller, forming a concentrated stress point on the surface of the bamboo section, which easily causes longitudinal splitting. The lack of progressive pressing mechanism makes it difficult to adapt to the anisotropy and fiber elasticity of bamboo, resulting in uneven flattening or structural damage. SUMMARY

[0004] The purpose of the present application is to overcome the problems in the prior art and provide a long bamboo section extrusion flattening device to avoid splitting during bamboo section flattening.

[0005] The present application provides a long bamboo section extrusion flattening device, which comprises a rack and a feeding module, an extrusion flattening module and a discharging module arranged in sequence on the rack. The extrusion flattening module comprises a first rack plate fixedly connected to the top of the rack and composed of a horizontal section and an inclined section. A u-shaped bin is arranged on the top of the first rack plate with the concave surface facing the first rack plate. A plurality of guide pieces are arranged along the inner side wall of the u-shaped bin and are in contact with the bamboo sections to be extruded. A guide rod is arranged along the length direction of the u-shaped bin to guide the bamboo sections fed by the feeding module. An expansion joint piece is fixedly connected to the bottom of the guide rod and is connected to the bottom of the guide rod through an arc transition section. An extrusion assembly comprises a conical extrusion seat, a conical flat-tongue and a duckbill-shaped extrusion cover. The conical extrusion seat is fixedly connected to one end of the guide rod, the duckbill-shaped extrusion cover is fixedly connected to the u-shaped bin, and the duckbill-shaped extrusion cover and the conical flat-tongue are spaced apart. The conical flat-tongue is fixedly connected to the inclined section, and the guide rod and the conical extrusion seat are closer to the conical flat-tongue with a larger radius.

[0006] Preferably, the duckbill-shaped extrusion cover top is provided with a plurality of upper blocking strips, one side of the first frame plate is fixedly connected with a feeding plate, and the feeding plate and the upper blocking strips are used for horizontally limiting the bamboo segments after extrusion.

[0007] Preferably, the feeding module comprises a second frame plate, a hydraulic device, a bamboo segment push rod and a rod drag, the hydraulic device is horizontally arranged with an output end coinciding with the axis of the guide rod, the output end of the hydraulic device is fixedly connected with the bamboo segment push rod, the end of the bamboo segment push rod is fixedly connected with the rod drag, and the rod drag is used for bearing the bamboo segments needing to be extruded and flattened.

[0008] Preferably, the rack is provided with a steam assembly, comprising a steam box, steam pipes and steam nozzles, the steam box is fixedly arranged on the rack and located at the bottom of the first frame plate, a plurality of steam pipes are arranged, one end of each steam pipe is connected with the steam box, and the other end of each steam pipe penetrates through the duckbill-shaped extrusion cover and is fixedly connected with the steam nozzle in one-to-one correspondence.

[0009] Preferably, the discharging module comprises a discharging table, a first motor, a first rotating roller group and a second rotating roller group, the discharging table is fixedly connected with the rack, the first motor is fixedly connected to the rack, the first rotating roller group is horizontally arranged and rotationally connected with the rack through a first rotating shaft, the first rotating roller group is arranged in a pair, the output end of the first motor is driven through a first belt pulley group and any first rotating shaft of the first rotating roller group, adjacent first rotating shafts are connected and synchronously driven through a second belt pulley group, the second rotating roller group is arranged in a pair and rotationally connected with the rack through a second rotating shaft, the second rotating shaft is transmissionally connected with the first belt pulley group through a gear group, adjacent second rotating shafts are connected and synchronously driven through a third belt pulley group, and the rotating directions of the first rotating roller group and the second rotating roller group are opposite.

[0010] Preferably, the first rotating roller group and the second rotating roller group are circumferentially provided with a plurality of ball teeth.

[0011] Preferably, the rack is provided with a planing assembly, the planing assembly is used for planing the surface of the bamboo segments processed by the discharging assembly, and the planing assembly comprises a second motor, a fourth belt pulley group and a planing roller shaft, the second motor is fixedly connected to the rack, the planing roller shaft is rotationally connected with the rack through a third rotating shaft, the output end of the second motor is transmissionally connected with the third rotating shaft through the fourth belt pulley group, the planing roller shaft is fixedly connected with a fixed sheet along the axial direction of the planing roller shaft, and a planing blade is mounted on the fixed sheet through a fixing screw.

[0012] Preferably, the discharging table is provided with side blocking strips on both sides.

[0013] Compared with the prior art, the long bamboo section extrusion and flattening equipment has the following beneficial effects: the long bamboo section extrusion and flattening equipment extrudes the slotted bamboo section into a u-shaped bin through a feeding module, a plurality of guide pieces are uniformly arranged in the u-shaped bin, the bamboo section outer wall is gradually wrapped and compressed, and internal stress is released at multiple site steps in longitudinal movement. Compared with a traditional single-point pressure mode, the design disperses stress peaks and avoids stress concentration during radial extrusion, thereby reducing the risk of longitudinal splitting.

[0014] Meanwhile, the tapered gentle slope cavity formed by the duckbill-shaped extrusion cover and the tapered gentle tongue realizes smooth transition of the cavity section from the circular inlet to the flat outlet. The structure of “front circle and rear flat” avoids fiber rupture caused by sudden stress, and, in combination with the synergistic effect of the guide pieces, ensures uniform stress of the bamboo material in the plastic deformation process, and improves the yield. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0016] Figure 2 It is a schematic diagram of the extrusion and flattening module and the steam assembly structure of the present application.

[0017] Figure 3 It is an exploded structure schematic diagram of the present application. Figure 2

[0018] Figure 4 It is a schematic diagram of the bamboo section extrusion and flattening gradual change process of the present application.

[0019] Figure 5 It is a gradual change schematic diagram of the duckbill-shaped extrusion cover of the present application.

[0020] Figure 6 It is a schematic diagram of the steam assembly structure of the present application.

[0021] Figure 7 It is a schematic diagram of the discharge module structure of the present application.

[0022] Figure 8 It is a schematic diagram of the planing assembly structure of the present application.

[0023] ​Explanation of reference numerals in the attached diagram: 1. Frame; 2. Feeding module; 21. Second frame plate; 22. Hydraulic unit; 23. Bamboo segment push rod; 24. Rod drag; 3. Extrusion and flattening module; 31. First frame plate; 32. U-shaped hopper; 33. Guide plate; 34. Guide rod; 35. Extrusion assembly; 351. Conical extruder seat; 352. Conical flattening tongue; 353. Duckbill-shaped extrusion cap; 4. Upper stop bar; 5. Feeding plate; 6. Widening plate; 7. Discharge module; 71 71. Discharge platform; 72. First motor; 73. First rotating roller group; 74. Second rotating roller group; 75. First pulley group; 76. Gear group; 8. Ball gear; 9. Steam assembly; 91. Steam box; 92. Steam pipe; 93. Steam nozzle; 10. Planing assembly; 101. Second motor; 102. Fourth pulley group; 103. Planing roller; 104. Fixing plate; 105. Fixing screw; 106. Planing blade; 11. Side stop bar. Detailed Implementation

[0024] The following is in conjunction with the appendix Figures 1-5 To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art.

[0025] The terms "first," "second," and similar words used in the specification and claims of this patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "inner," "outer," "upper," "lower," "far," "near," "front," and "rear" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The drawings in this invention are not strictly drawn to scale; the specific dimensions and quantity of each structure can be determined according to actual needs. The drawings described in this invention are merely structural schematic diagrams.

[0026] This invention provides a long bamboo segment extrusion and flattening device, such as... Figures 1-8As shown, including rack 1 and feeding module 2, extrusion and flattening module 3 and discharge module 7 arranged on rack 1 in turn, extrusion and flattening module 3 includes first shelf plate 31, which is fixedly connected to the top of rack 1 and is spliced by horizontal section and inclined section; U-shaped bin 32 is arranged on the top of first shelf plate 31, with the concave surface facing first shelf plate 31; A plurality of guide vanes 33 are arranged, and the guide vanes 33 are arrayed along the inner side wall of u-shaped bin 32 and are attached to the bamboo sections that need to be extruded; Guide rod 34 is arranged along the length direction of u-shaped bin 32 for guiding the bamboo end sent by feeding module 2; Expansion joint piece 6 is fixedly connected to the bottom of guide rod 34, and expansion joint piece 6 and the bottom of guide rod 34 are matched through arc transition section; Extrusion assembly 35 includes conical extrusion seat 351, conical gentle tongue 352 and duckbill-shaped extrusion cover 353, conical extrusion seat 351 is fixedly connected with one end of guide rod 34, duckbill-shaped extrusion cover 353 is fixedly connected with u-shaped bin 32, duckbill-shaped extrusion cover 353 and conical gentle tongue 352 are spaced, conical gentle tongue 352 is fixedly connected on the inclined section, and the radius of guide rod 34 and conical extrusion seat 351 becomes larger as they are closer to conical gentle tongue 352.

[0027] In this embodiment, the slit bamboo sections are extruded into u-shaped bin 32 through feeding module 2, and a plurality of guide vanes 33 are uniformly arranged in u-shaped bin 32, which gradually wraps and compresses the outer wall of the bamboo section, and releases the internal stress at multiple points in the longitudinal direction. Compared with the traditional single-point pressure mode, this design disperses the stress peak and avoids stress concentration during radial extrusion, thereby reducing the risk of longitudinal splitting;

[0028] At the same time, the conical gentle slope cavity formed by duckbill-shaped extrusion cover 353 and conical gentle tongue 352 realizes the smooth transition of the cavity section from the circular inlet to the flat outlet. This "front circle and rear flat" structure avoids fiber rupture caused by sudden stress, and combined with the synergistic effect of guide vanes 33, ensures uniform stress on the bamboo during plastic deformation, and improves the yield.

[0029] Secondly, the device breaks through the length limit and realizes continuous and efficient processing of 2.5-meter-long bamboo sections for the first time. Due to structural limitations, the maximum processing length of traditional equipment is only 1.8 meters, which leads to manual cutting of bamboo and damage to fiber continuity. Through axial rigid synergistic control technology, the natural axial reinforcement effect of bamboo fiber bundle is utilized to selectively maintain longitudinal stiffness during steam softening. The dense arrangement of vascular bundles forms an "enhanced fiber network" to ensure that long bamboo sections resist tensile stress and push deformation without interrupting processing. Combined with the guidance of u-shaped bin 32 and the gradual change design of conical gentle slope cavity, the device is adapted to 2.5-meter-long bamboo sections.

[0030] Finally, the device improves overall efficiency and energy economy. By separating the feeding module 2, the extrusion and flattening module 3, and the discharging module 7, the device realizes industrialized continuous production, and the flattening time of a single 2.5-meter bamboo section is shortened to 3-5 minutes, which improves the efficiency compared with traditional manual segmented pressing.

[0031] The closer the guide rod 34 is to the tapered extrusion seat 351, the larger it is, combined with the bottom expansion joint sheet 6 and the arc-shaped transition section, which realizes automatic alignment and gradual expansion of the bamboo joint. In addition to the expansion joint function, the expansion joint sheet 6 restricts the saw joint downward to ensure that the bamboo section is evenly flattened to both sides in the extrusion assembly 35, preventing longitudinal cracking at the inlet. The arc-shaped transition section smoothly guides the bamboo section into the u-shaped bin 32, avoiding hard collision, reducing the equipment jam rate, and being suitable for bamboo sections of different diameters, enhancing the modularity and practicality.

[0032] Preferably, as shown in Figures 2-3 The duckbill-shaped extrusion cover 353 is provided with a plurality of upper stop bars 4 at the top, and the feeding plate 5 is fixedly connected to one side of the first frame plate 31. The feeding plate 5 and the upper stop bars 4 are used to horizontally limit the bamboo sections after extrusion.

[0033] In this embodiment, the upper stop bars 4 are installed at the top of the duckbill-shaped extrusion cover 353 to provide downward pressure, and the feeding plate 5 is fixed to one side of the first frame plate 31 to form a horizontal bearing surface. The two work together to strictly limit the flattened bamboo sections on the horizontal path, avoiding bending or deviation of the bamboo sections during transportation due to elastic recovery. This ensures the dimensional stability of the bamboo after plastic deformation and improves the flattening accuracy. At the same time, the rigid support of the upper stop bars 4 reduces the friction between the bamboo sections and the cavity, prolonging the service life of the equipment.

[0034] Preferably, as shown in Figure 1 The feeding module 2 includes a second frame plate 21, a hydraulic device 22, a bamboo section push rod 23, and a rod drag 24. The hydraulic device 22 is horizontally arranged with the output end coinciding with the axis of the guide rod 34, the output end of the hydraulic device 22 is fixedly connected with the bamboo section push rod 23, the end of the bamboo section push rod 23 is fixedly connected with the rod drag 24, and the rod drag 24 is used to carry the bamboo sections that need to be extruded and flattened.

[0035] In this embodiment, the rod drag 24 carries the small end of the bamboo section, and is fixedly connected with the bamboo section push rod 23 to realize uniform force distribution; the hydraulic device 22 is horizontally arranged with the output end accurately centered to reduce the risk of uneven load, ensure the uniform speed of the bamboo section in the u-shaped bin 32, and prevent stress fluctuations caused by speed fluctuations. The success rate of pushing material is 100%, supporting the uninterrupted feeding of 2.5-meter bamboo sections, reducing the failure rate of the equipment, and being suitable for high-load industrial scenarios.

[0036] Preferably, as shown in Figure 6As shown, the rack 1 is provided with a steam assembly 9, including a steam box 91, steam pipes 92 and steam nozzles 93. The steam box 91 is fixedly arranged on the rack 1 and located at the bottom of the first rack plate 31. The steam pipes 92 are arranged in plurality, one end of which is connected with the steam box 91 and the other end of which penetrates the duckbill-shaped extrusion cover 353 and is fixedly connected with the steam nozzles 93 in one-to-one correspondence.

[0037] In this embodiment, the steam assembly 9 includes the steam box 91, the steam pipes 92 and the nozzles. The nozzles penetrate the duckbill-shaped extrusion cover 353 to realize secondary steam compensation. Steam is directly sprayed into the conical gentle slope cavity from the steam box 91 to maintain a flattened temperature ≥ 100℃, ensuring that the lignin is plasticized and avoiding heat energy loss, reducing pressure demand and reducing fiber damage. At the same time, the steam is evenly sprayed to prevent local over-wetting.

[0038] Preferably, as shown in the figure, Figures 7-8 As shown, the discharge module 7 includes a discharge table 71, a first motor 72, a first rotating roller group 73 and a second rotating roller group 74. The discharge table 71 is fixedly connected with the rack 1. The first motor 72 is fixedly connected to the rack 1. The first rotating roller group 73 is horizontally arranged and rotationally connected with the rack 1 through a first rotating shaft. The first rotating roller group 73 is arranged in pair. The output end of the first motor 72 is driven by the first rotating shaft of the first rotating roller group 73 through a first belt pulley set 75. The adjacent first rotating shafts are synchronously driven through a second belt pulley set. The second rotating roller group 74 is arranged in pair and rotationally connected with the rack 1 through a second rotating shaft. The second rotating shaft is transmissionally connected with the first belt pulley set 75 through a gear set 76. The adjacent second rotating shafts are synchronously driven through a third belt pulley set. The rotating directions of the first rotating roller group 73 and the second rotating roller group 74 are opposite.

[0039] In this embodiment, the first rotating roller group 73 and the second rotating roller group 74 actively clamp the front end of the bamboo section and pull it out at a uniform speed to avoid fiber breakage caused by tensile stress. The first belt pulley set 75, the second belt pulley set and the third belt pulley set provide redundant backup. This realizes dynamic balance of pushing and pulling to pull out the bamboo section completely to support the automatic assembly line and reduce manual intervention;

[0040] The gear set 76 is arranged in pair. One of the gears is rotationally connected with the rack through a shaft pipe and is transmissionally connected with the first belt pulley set 75. The other gear in the meshing gear set is connected with the second rotating shaft in the second rotating roller group 74.

[0041] Preferably, as shown in the figure, Figure 7 As shown, the first rotating roller group 73 and the second rotating roller group 74 are circumferentially arranged with a plurality of ball teeth 8.

[0042] In this embodiment, the knobs 8 are arranged in the circumferential direction of the first and second rotating roller groups 74 to form a semispherical protruding tooth or knurled surface, providing multi-point contact, increasing the friction coefficient, and avoiding the bamboo segments from falling off when pulled out at high speed. At the same time, the elastic buffering of the knobs 8 reduces surface indentation and protects the integrity of the bamboo.

[0043] Preferably, as shown in Figures 1-8 The rack 1 is provided with a planing assembly 10 for planing the surface of the bamboo segments processed by the discharging assembly. The planing assembly 10 comprises a second motor 101, a fourth pulley set 102 and a planing roller 103. The second motor 101 is fixedly connected to the rack 1. The planing roller 103 is rotatably connected to the rack 1 through a third rotating shaft. The output end of the second motor 101 is drivingly connected to the third rotating shaft through the fourth pulley set 102. The planing roller 103 is fixedly connected with a fixing piece 104 along the axial direction of the planing roller 103. The fixing piece 104 is provided with a planing blade 106 mounted thereon through a fixing screw 105.

[0044] In this embodiment, the planing roller 103 is located at the discharging end, and the planing blade 106 can be quickly replaced to adapt to different thicknesses, which eliminates the traditional additional green removing station, shortens the processing cycle, and reduces the equipment occupation.

[0045] Preferably, as shown in Figure 7 The discharging table 71 is provided with side stop strips 11 on both sides.

[0046] In this embodiment, the side stop strips 11 provide physical limiting to prevent the flattened bamboo segments from sliding out due to inertia or unevenness, especially for long bamboo segments, which reduces the downtime adjustment time and improves the continuity of the production line.

[0047] The use method of the long bamboo segment extrusion flattening equipment is as follows: The large-diameter end of the bamboo segment subjected to the joint sawing and high-temperature steam softening treatment is sleeved on the guide rod 34, and the pre-opened bamboo joint is embedded in the joint expanding piece 6 to ensure the initial positioning. The small end of the bamboo segment is stably placed on the rod drag 24 of the feeding module 2. Before starting the hydraulic device 22, the state of the steam assembly 9 is checked to ensure that the steam jet head 93 is ready for use;

[0048] The hydraulic device 22 is started, and the bamboo segment push rod 23 is pushed to top the bamboo segment into the u-shaped bin 32 at a uniform speed. When the bamboo segment travels in the u-shaped bin 32, the seven guide pieces 33 gradually wrap the outer wall of the bamboo segment to release the internal stress step by step. The front end of the bamboo segment enters the tapered gentle slope cavity formed by the duckbill-shaped extrusion cover 353 and the tapered gentle tongue 352, the steam jet head 93 sprays compensation steam, the cross section of the tapered gentle slope cavity changes from circular to flat, and the plastic flattening of the bamboo segment is realized;

[0049] After the bamboo segment is flattened to the preset depth, it is sent out from the duckbill outlet through the feeding plate 5, and the first and second rotating roller groups 74 of the discharging module 7 immediately clamp the front end of the bamboo segment, and the rollers rotate at a uniform speed to pull out. The pulled-out bamboo segment is subjected to synchronous bamboo green removal through the planing roller 103. Finally, the bamboo material is conveyed to the discharging table 71, the processing is completed, and the subsequent plate pressing application is prepared.

[0050] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A long bamboo segment extrusion flattening apparatus, characterized by, The utility model relates to a bamboo extruding machine, including frame (1) and setting on frame (1) feeding module (2) in proper order, extrusion and flatten module (3) and discharge module (7), extrusion and flatten module (3) includes: First frame plate (31) is fixedly connected to the top of the frame (1) horizontally, which is spliced from a horizontal section and an inclined section; U-shaped bin (32) is arranged on the top of the first frame plate (31), with the concave surface facing the first frame plate (31); A plurality of guide vanes (33) are arranged along the inner side wall of the u-shaped bin (32) and are in contact with the bamboo sections that need to be extruded; A guide rod (34) is arranged along the length direction of the u-shaped bin (32) to guide the bamboo sections sent by the feeding module (2); A slit-expanding piece (6) is fixedly connected to the bottom of the guide rod (34), and the slit-expanding piece (6) is matched with the bottom of the guide rod (34) through an arc transition section; The extrusion assembly (35) includes a tapered extrusion seat (351), a tapered gentle tongue (352), and a duckbill-shaped extrusion cover (353). The tapered extrusion seat (351) is fixedly connected to one end of the guide rod (34). The duckbill-shaped extrusion cover (353) is fixedly connected to the u-shaped bin (32). The duckbill-shaped extrusion cover (353) and the tapered gentle tongue (352) have a spacing to form a gentle slope cavity. The tapered gentle tongue (352) is fixedly connected to the inclined section. The guide rod (34) and the tapered extrusion seat (351) have a larger radius as they are closer to the tapered gentle tongue (352).

2. A long bamboo segment extrusion flattening apparatus as claimed in claim 1, wherein, A plurality of upper blocking strips (4) are arranged on the top of the duckbill-shaped extrusion cover (353). A feeding plate (5) is fixedly connected to one side of the first frame plate (31). The feeding plate (5) and the upper blocking strips (4) are used to horizontally limit the bamboo sections after extrusion.

3. A long bamboo segment extrusion flattening apparatus as claimed in claim 1, wherein, The feeding module (2) includes a second frame plate (21), a hydraulic device (22), a bamboo section push rod (23), and a rod drag (24). The hydraulic device (22) is horizontally arranged with the output end coinciding with the axis of the guide rod (34). The output end of the hydraulic device (22) is fixedly connected to the bamboo section push rod (23). The end of the bamboo section push rod (23) is fixedly connected to the rod drag (24), which is used to carry the bamboo sections that need to be extruded and flattened.

4. A long bamboo segment extrusion flattening apparatus as claimed in claim 1, wherein, A steam assembly (9) is arranged on the frame (1), which includes a steam box (91), a steam pipe (92), and a steam nozzle (93). The steam box (91) is fixedly arranged on the frame (1) and located at the bottom of the first frame plate (31). A plurality of steam pipes (92) are arranged, with one end connected to the steam box (91) and the other end penetrating the duckbill-shaped extrusion cover (353) and fixedly connected to the steam nozzle (93) one by one.

5. A long bamboo segment extrusion flattening apparatus as claimed in claim 1, wherein, The discharge module (7) comprises a discharge table (71), a first motor (72), a first rotating roller group (73) and a second rotating roller group (74), the discharge table (71) is fixedly connected with the rack (1), the first motor (72) is fixedly connected on the rack (1), the first rotating roller group (73) is horizontally arranged and is rotatably connected with the rack (1) through a first rotating shaft, the first rotating roller group (73) is arranged as a pair, the output end of the first motor (72) drives any first rotating shaft of the first rotating roller group (73) through a first belt pulley set (75), adjacent first rotating shafts are connected and synchronously driven through a second belt pulley set, the second rotating roller group (74) is arranged as a pair and is rotatably connected with the rack (1) through a second rotating shaft, the second rotating shaft is drivingly connected with the first belt pulley set (75) through a gear set (76), adjacent second rotating shafts are connected and synchronously driven through a third belt pulley set, and the rotating directions of the first rotating roller group (73) and the second rotating roller group (74) are opposite.

6. A long bamboo segment extrusion flattening apparatus as claimed in claim 5, wherein, The first rotating roller group (73) and the second rotating roller group (74) are circumferentially provided with a plurality of ball teeth (8).

7. A long bamboo segment extrusion flattening apparatus as claimed in claim 1, wherein, The rack (1) is provided with a planing assembly (10), the planing assembly (10) is used for planing the surface of the bamboo section processed by the discharge assembly, and the planing assembly (10) comprises a second motor (101), a fourth belt pulley set (102) and a planing roller (103), the second motor (101) is fixedly connected on the rack (1), the planing roller (103) is rotatably connected with the rack (1) through a third rotating shaft, the output end of the second motor (101) is drivingly connected with the third rotating shaft through the fourth belt pulley set (102), the planing roller (103) is fixedly connected with a fixed sheet (104) along the axial direction thereof, and the fixed sheet (104) is provided with a planing blade (106) mounted through a fixed screw (105).

8. A long bamboo segment extrusion flattening apparatus as claimed in claim 5, wherein, The discharge table (71) is provided with side blocking strips (11) on both sides.

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