Bamboo tube cutting method

Abstract

The present invention relates to the technical field of bamboo tube cutting, and discloses a bamboo tube cutting method, which includes placing a bamboo tube on a transmission structure. After the bamboo tube is transmitted to a cutting station, a clamping structure and a rotating structure are respectively arranged on both sides of the cutting station. The clamping structure and the rotating structure respectively abut against both ends of the bamboo tube to relatively fix the bamboo tube. A cutting knife moving horizontally is arranged outside the cutting station. After the rotating structure drives the bamboo tube to rotate by a set angle, the cutting knife moves along the axial direction of the bamboo tube to cut the outer wall of the bamboo tube to form a cutting seam. After repeating the cutting step until a set number of cutting seams are formed on the outer wall of the bamboo tube, the clamping structure and the rotating structure respectively release the abutment against the bamboo tube. Through the transmission structure, the clamping structure, the rotating structure and the cutting knife for cutting the outer wall of the bamboo tube, etc., the whole line is automated, and the entire bamboo tube can be cut from beginning to end, with high resource utilization rate, effectively improving the utilization rate of the most valuable bamboo root in the bamboo and reducing the labor cost.

Description

Technical Field

[0001] This invention patent relates to the technical field of bamboo tube cutting. Specifically, it relates to a method for cutting bamboo tubes. Background Art

[0002] The bamboo industry is a globally recognized green industry with great social, economic, ecological, and cultural values. The Chinese bamboo industry has made important contributions to promoting social and economic development and ecological construction.

[0003] There are many daily necessities made of bamboo and wood in life. When making daily necessities from bamboo and wood, it is generally necessary to slice and polish the bamboo tubes in the bamboo and wood.

[0004] In the prior art, the bamboo tube is often impacted, and a cutting knife is used to cooperate to break the bamboo tube into bamboo strips of the required width. However, since some bamboo tubes have short bamboo joints and are thick and hard, it is impossible to ensure that all bamboo tubes can be broken. The parts that cannot be broken cannot be cut into the set bamboo strips by the cutting knife, and they are often disposed of by discarding. And because the root part of the bamboo tube has a large deformation and the cross-section is in an irregular state, when breaking it in this way, it is impossible to ensure that the widths of the broken bamboo strips are equal. At the same time, the value of the root part of the bamboo tube is relatively high. When breaking it in this way, it is easy to damage the bamboo tube and cause waste of bamboo strips, resulting in a low utilization rate. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for cutting bamboo tubes, aiming to solve the problem of low utilization rate in the resource utilization of bamboo tubes in the prior art.

[0006] The present invention is implemented as follows. The method for cutting bamboo tubes includes the following steps:

[0007] 1), Place the bamboo tube on the transmission structure, and the bamboo tube is transmitted to the cutting station;

[0008] 2), A tightening structure and a rotating structure are respectively arranged on both sides of the cutting station. The tightening structure and the rotating structure respectively abut against both ends of the bamboo tube to relatively fix the bamboo tube. A cutting knife that moves horizontally is arranged outside the cutting station. The cutting knife moves along the axial direction of the bamboo tube to cut the outer wall of the bamboo tube to form a cutting seam;

[0009] 3), After the rotating structure drives the bamboo tube to rotate by a set angle, the cutting knife moves along the axial direction of the bamboo tube to cut the outer wall of the bamboo tube to form a cutting seam;

[0010] 4), Repeat operation step 3) until a set number of cutting seams are formed on the outer wall of the bamboo tube, and then the tightening structure and the rotating structure respectively release the abutment against the bamboo tube.

[0011] Optionally, in step 4), after the pressing structure and the rotating structure release the abutment against the bamboo tube respectively, the bamboo tube falls onto the transmission structure for transmission.

[0012] Optionally, a clamping head is provided at the cutting station. In step 1), after the bamboo tube is transmitted to the cutting station, the clamping head clamps the bamboo tube, and after lifting the bamboo tube to a set position, the pressing structure and the rotating structure move towards the ends of the bamboo tube respectively and abut against both ends of the bamboo tube.

[0013] Optionally, the clamping head is arranged between the pressing structure and the rotating structure, and includes two clamping plates that move towards or away from each other. The two clamping plates are arranged at an upper and lower interval, and there is a clamping interval for the bamboo tube to pass through between the two clamping plates; the clamping plate has a clamping side facing the clamping interval, and the middle part of the clamping side is recessed away from the clamping interval, forming a clamping groove for the outer side of the bamboo tube to be embedded in.

[0014] In step 1), after the bamboo tube is transmitted to the cutting station, the bamboo tube is located in the clamping interval, and the two clamping plates move towards each other to clamp the bamboo tube and drive the bamboo tube to move upwards to the set position.

[0015] Optionally, a cross beam arranged horizontally is provided at the cutting station, and the cross beam extends along the axial direction of the bamboo tube; a rotating motor that moves along the cross beam is provided on the cross beam; the rotating motor is provided with a rotating main shaft arranged longitudinally downwards, and a cutting knife is connected to the rotating main shaft, and the cutting knife is arranged horizontally.

[0016] A protective cover arranged horizontally is provided on the outer side of the cutting knife, and a protective cavity is provided in the protective cover. The protective cavity has an outer opening facing the cutting knife; the outer side of the cutting knife is embedded in the protective cavity through the outer opening, and the inner side of the cutting knife is exposed outside the protective cavity to form a cutting part.

[0017] During the process of the cutting knife cutting the outer wall of the bamboo tube, the rotating motor reciprocates along the cross beam.

[0018] Optionally, the pressing structure has a pressing disc that presses against the end of the bamboo tube, and the rotating structure has a rotating disc that presses against the end of the bamboo tube; in step 2), after the bamboo tube is located at the cutting station, the pressing disc and the rotating disc move towards the ends of the bamboo tube respectively and press against the ends of the bamboo tube respectively to relatively fix the bamboo tube.

[0019] The top pressing plate is provided with a top pressing avoidance groove for the cutting tool to pass through, and the top pressing avoidance groove horizontally penetrates the top pressing plate; the rotating plate is provided with a rotating avoidance groove for the cutting tool to pass through, and the rotating avoidance groove horizontally penetrates the rotating plate; when the cutting tool cuts the outer wall of the bamboo tube along the axial direction of the bamboo tube, the cutting tool passes through the top pressing avoidance groove or the rotating avoidance groove;

[0020] Optionally, in step 3), after the rotating structure drives the bamboo tube to rotate by a set angle, the clamping head clamps and fixes the bamboo tube, the end of the top pressing plate facing away from the bamboo tube moves, and the top pressing plate rotates in place to reset the top pressing avoidance groove. The end of the rotating plate facing away from the bamboo tube moves, and after the rotating avoidance groove is reset, the top pressing plate and the rotating plate respectively move towards the end of the bamboo tube and press against the end of the bamboo tube. After the bamboo tube is relatively fixed, the clamping head releases the clamping of the bamboo tube.

[0021] Optionally, an encoder is provided at the cutting station, and a roller is connected to the encoder; in step 3), before the rotating structure drives the bamboo tube to rotate, the roller abuts against the outer circumference of the bamboo tube, and during the process of the rotating structure driving the bamboo tube to rotate, the arc length of the rotation of the bamboo tube is measured by the encoder.

[0022] Optionally, the rotating plate has a rotating side surface facing the end of the bamboo tube and is conical. Along the direction from the center to the outer circumference of the rotating side surface, the end of the rotating side surface facing away from the bamboo tube is inclined.

[0023] The top pressing plate is arranged on a horizontally arranged rotating cylinder, and a plurality of avoidance intervals are provided in the top pressing plate, and the plurality of avoidance intervals are arranged at intervals along the circumferential direction of the top pressing plate; a moving plate that moves back and forth along the axial direction of the rotating cylinder is arranged on the rotating cylinder, and the moving plate includes a central shaft and a plurality of inclined plates, and the central shaft is movably connected to the rotating cylinder;

[0024] A return spring for pushing the end of the central shaft towards the bamboo tube to reset is arranged between the central shaft and the rotating cylinder; the plurality of inclined plates are connected to the outer circumference of the central shaft and are arranged at intervals along the circumferential direction of the central shaft, and the inclined plates are arranged opposite to the avoidance intervals; the inclined plate has an inclined surface that abuts against the end of the bamboo tube, and along the direction away from the central shaft, the end of the inclined surface facing away from the bamboo tube is inclined.

[0025] In step 2), after the top pressing structure abuts against the end of the bamboo tube, the end of the bamboo tube abuts against the inclined surface. During the process of the top pressing structure moving towards the end of the bamboo tube, the inclined plate is pressed to move away from the end of the bamboo tube and pass through the avoidance interval, and the return spring is compressed until the end of the bamboo tube abuts against the top pressing plate.

[0026] Optionally, a surface elastic layer is covered on the inclined surface. The outer periphery of the surface elastic layer is fixedly connected to the inclined surface. The middle part of the surface elastic layer forms a movable part that abuts against the end of the bamboo tube and automatically elastically adjusts the pressing position. The movable part is movably arranged between the inclined surface.

[0027] Compared with the prior art, the bamboo tube cutting method provided by the present invention transports the bamboo tube to the cutting station through the transmission structure, the tightening structure and the rotating structure fix the bamboo tube and rotate the bamboo tube, and the cutting knife cuts the outer wall of the bamboo tube. According to production needs, the bamboo tube slicing parameters are set to form arc-shaped bamboo strips with equal length and width. At the same time, the mutual cooperation between the top-level structure and the rotating structure can adapt to bamboo tubes with different lengths. In this way, the whole line is automated, and the whole bamboo tube can be cut from head to tail, with high resource utilization rate, effectively improving the utilization rate of the most valuable bamboo root in the bamboo and reducing the labor cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional schematic diagram of the equipment adopted by the bamboo tube cutting method provided by the present invention;

[0029] Figure 2 is a three-dimensional schematic diagram of the equipment adopted by the bamboo tube cutting method provided by the present invention;

[0030] Figure 3 is a three-dimensional schematic diagram of the tightening structure provided by the present invention;

[0031] Figure 4 is a three-dimensional schematic diagram of the tightening structure provided by the present invention;

[0032] Figure 5 is a three-dimensional schematic diagram of the rotating structure provided by the present invention;

[0033] Figure 6 is a three-dimensional schematic diagram of the clamping head provided by the present invention;

[0034] Figure 7 is a three-dimensional schematic diagram of the rotating motor provided by the present invention;

[0035] Figure 8 is a three-dimensional schematic diagram of the encoder provided by the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0036] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0037] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0038] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", etc. indicating the orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the positional relationship in the accompanying drawings are only for illustrative purposes and cannot be understood as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0039] Referring to Figure 1-8 as shown, it is a preferred embodiment provided by the present invention.

[0040] The bamboo tube cutting method provided by the present invention includes the following steps:

[0041] 1), Place the bamboo tube 10 on the transmission structure 100, and the bamboo tube 10 is transmitted to the cutting station;

[0042] 2), On both sides of the cutting station, there are respectively a tightening structure 200 and a rotating structure 300. The tightening structure 200 and the rotating structure 300 respectively abut against both ends of the bamboo tube 10 to relatively fix the bamboo tube 10; outside the cutting station, there is a cutting knife 503 that moves horizontally. The cutting knife 503 moves along the axial direction of the bamboo tube 10 to cut the outer wall of the bamboo tube 10 to form a cutting seam;

[0043] 3), After the rotating structure 300 drives the bamboo tube 10 to rotate by a set angle, the cutting knife 503 moves along the axial direction of the bamboo tube 10 to cut the outer wall of the bamboo tube 10 to form a cutting seam;

[0044] 4), Repeat operation step 3) until a set number of cutting seams are formed on the outer wall of the bamboo tube 10, and then the tightening structure 200 and the rotating structure 300 respectively release the abutment against the bamboo tube 10.

[0045] For the above-mentioned bamboo tube cutting method, the bamboo tube 10 is transmitted to the cutting station through the transmission structure 100, the tightening structure 200 and the rotating structure 300 fix the bamboo tube 10 and rotate the bamboo tube 10, and the cutting knife 503 cuts the outer wall of the bamboo tube 10; according to production needs, the slicing parameters of the bamboo tube 10 are set to form arc-shaped bamboo strips with equal length and width. At the same time, the mutual cooperation between the top structure and the rotating structure 300 can adapt to bamboo tubes 10 with different lengths. In this way, the whole line is automated, and the entire bamboo tube 10 can be cut from beginning to end, with high resource utilization rate, effectively improving the utilization rate of the most valuable bamboo root part of the bamboo and reducing the labor cost.

[0046] In step 4), after the clamping structure 200 and the rotating structure 300 release the abutment against the bamboo tube 10 respectively, the bamboo tube 10 falls onto the transmission structure 100 for transmission. In this way, the bamboo tube 10 with the set number of cutting slits is formed and transmitted to leave the cutting station through the transmission structure 100, and the subsequent bamboo tubes 10 are transmitted to the cutting station through the transmission structure 100.

[0047] The cutting station is provided with a clamping head 400. In step 1), after the bamboo tube 10 is transmitted to the cutting station, the clamping head 400 clamps the bamboo tube 10 and raises the bamboo tube 10 to a set position. Then, the clamping structure 200 and the rotating structure 300 move towards the ends of the bamboo tube 10 respectively and abut against both ends of the bamboo tube 10. In this way, the bamboo tube 10 is clamped by the clamping head 400 to the cutting positions of the clamping structure 200 and the rotating structure 300; and by using the clamping head 400 to separate the bamboo tube 10 from the transmission structure 100, it is ensured that the cutting knife 503 can accurately cut the outer wall of the bamboo tube 10.

[0048] The clamping head 400 is arranged between the clamping structure 200 and the rotating structure 300, and includes two clamping plates 401 that move towards or away from each other. The two clamping plates 401 are arranged at an upper and lower interval, and there is a clamping interval for the bamboo tube 10 to pass through between the two clamping plates 401; the clamping plates 401 have a clamping side facing the clamping interval, and the middle of the clamping side is recessed away from the clamping interval, forming a clamping groove 402 for the outer side of the bamboo tube 10 to be embedded in.

[0049] In step 1), after the bamboo tube 10 is transmitted to the cutting station, the bamboo tube 10 is located in the clamping interval. The two clamping plates 401 move towards each other, clamp the bamboo tube 10, and drive the bamboo tube 10 to move upwards to the set position. Since the clamping head 400 is arranged up and down and clamps the upper and lower sides of the bamboo tube 10, and at the same time the longitudinal section of the bamboo tube 10 is elliptical, the clamping groove 402 fits better with the outer wall of the bamboo tube 10 and can clamp it stably.

[0050] The cutting station is provided with a cross beam 500 arranged horizontally. The cross beam 500 extends along the axial direction of the bamboo tube 10; a rotating motor 501 that moves along the cross beam 500 is arranged on the cross beam 500; the rotating motor 501 is provided with a rotating main shaft 502 arranged vertically downwards, and a cutting knife 503 is connected to the rotating main shaft 502, and the cutting knife 503 is arranged horizontally.

[0051] A protective cover 504 arranged horizontally is provided on the outer side of the cutting knife 503. A protective cavity is provided in the protective cover 504, and the protective cavity has an outer opening facing the cutting knife 503; the outer side of the cutting knife 503 is embedded in the protective cavity through the outer opening, and the inner side of the cutting knife 503 is exposed outside the protective cavity, forming a cutting part.

[0052] During the process of the cutting knife 503 cutting the outer wall of the bamboo tube 10, the rotating motor 501 reciprocates along the cross beam 500.

[0053] Through the provided protective cover 504, the cutting knife 503 can only cut through the cutting part, preventing workers from being injured. At the same time, the cutting knife 503 cuts according to the set value until the arc length of the cut bamboo reaches the set value, then stops the lateral movement, making the arc length and width of the cut bamboo slices consistent. And the cutting knife 503 moves back and forth laterally, effectively reducing the idle running and having high production efficiency.

[0054] The tightening structure 200 has a tightening disk 201 pressing against the end of the bamboo tube 10, and the rotating structure 300 has a rotating disk 301 pressing against the end of the bamboo tube 10; in step 2), when the bamboo tube 10 is at the cutting station, the tightening disk 201 and the rotating disk 301 move towards the end of the bamboo tube 10 respectively and press against the end of the bamboo tube 10 respectively, relatively fixing the bamboo tube 10.

[0055] The tightening disk 201 is provided with a tightening avoidance groove 202 for the cutting knife 503 to pass through, and the tightening avoidance groove 202 runs through the tightening disk 201 laterally; the rotating disk 301 is provided with a rotating avoidance groove 302 for the cutting knife 503 to pass through, and the rotating avoidance groove 302 runs through the rotating disk 301 laterally; when the cutting knife 503 cuts the outer wall of the bamboo tube 10 along the axial direction of the bamboo tube 10, the cutting knife 503 passes through the tightening avoidance groove 202 or the rotating avoidance groove 302.

[0056] In step 3), after the rotating structure 300 drives the bamboo tube 10 to rotate a set angle, the clamping head 400 clamps and fixes the bamboo tube 10. The tightening disk 201 moves away from the end of the bamboo tube 10, and the tightening disk 201 resets and rotates to reset the tightening avoidance groove 202. The rotating disk 301 moves away from the end of the bamboo tube 10, and after the rotating avoidance groove 302 is reset, the tightening disk 201 and the rotating disk 301 move towards the end of the bamboo tube 10 respectively and press against the end of the bamboo tube 10 respectively. After relatively fixing the bamboo tube 10, the clamping head 400 releases the clamping of the bamboo tube 10.

[0057] In this way, the tightening disk 201 is provided with the tightening avoidance groove 202, and the rotating disk 301 is provided with the rotating avoidance groove 302 for the cutting knife 503 to pass through. After each cut of a cutting seam, the cutting knife 503 returns to the end of the bamboo tube 10, avoiding damage to the tightening disk 201 and the rotating disk 301 during the return process to the end. Therefore, by providing the tightening avoidance groove 202 and the rotating avoidance groove 302, the utilization rate of the most valuable root part of the bamboo tube 10 is effectively improved.

[0058] Meanwhile, compared with traditional bamboo automatic cutting equipment, during the cutting process, the clamping parts of the two-end clamping structure 200 are extremely easy to be cut off, making the clamping parts consumables, and the replacement is time-consuming and laborious, with a relatively high cost.

[0059] An encoder 600 is provided at the cutting station, and a roller 601 is connected to the encoder 600; in step 3), before the rotating structure 300 drives the bamboo tube 10 to rotate, the roller 601 abuts against the outer periphery of the bamboo tube 10. During the process that the rotating structure 300 drives the bamboo tube 10 to rotate, the arc length of the rotating bamboo tube 10 is adjusted through the encoder 600. In this way, the roller 601 can reduce the rotational force required for the rotating structure 300 to drive the bamboo tube 10 to rotate, and the encoder 600 can monitor the arc length of the cut bamboo in real time through the roller 601. When the set arc length intensity is reached, the rotating structure 300 stops rotating, and the cutting stops moving horizontally, so that the length and width of the cut arc-shaped bamboo strips are consistent.

[0060] The rotating disk 301 has a rotating side surface facing the bamboo tube 10 and in a conical shape. Along the direction from the center to the outer periphery of the rotating side surface, the end of the rotating side surface facing away from the bamboo tube 10 is obliquely arranged.

[0061] The clamping disk 201 is arranged on the horizontally arranged rotating cylinder 203. A plurality of avoidance intervals are provided in the clamping disk 201, and the plurality of avoidance intervals are arranged at intervals along the circumferential direction of the clamping disk 201; a moving disk 204 that moves back and forth along the axial direction of the rotating cylinder 203 is arranged on the rotating cylinder 203. The moving disk 204 includes a central shaft 205 and a plurality of inclined plates 206, and the central shaft 205 is movably connected to the rotating cylinder 203.

[0062] A return spring for pushing the end of the central shaft 205 towards the bamboo tube 10 to reset is arranged between the central shaft 205 and the rotating cylinder 203; the plurality of inclined plates 206 are connected to the outer periphery of the central shaft 205 and are arranged at intervals along the circumferential direction of the central shaft 205. The inclined plates 206 are arranged opposite to the avoidance intervals; the inclined plates 206 have inclined surfaces that abut against the ends of the bamboo tube 10. Along the direction away from the central shaft 205, the end of the inclined surface facing away from the bamboo tube 10 is obliquely arranged.

[0063] In step 2), after the clamping structure 200 abuts against the end of the bamboo tube 10, the end of the bamboo tube 10 abuts against the inclined surface. During the process that the clamping structure 200 moves towards the end of the bamboo tube 10, the inclined plate 206 is pressed to move away from the end of the bamboo tube 10 and passes through the avoidance interval, and the return spring is compressed until the end of the bamboo tube 10 abuts against the clamping disk 201.

[0064] Through the provided reset spring, during the process of the top pressing structure 200 pressing against the end of the bamboo tube 10, a buffering effect can be achieved, avoiding the phenomenon of the bamboo tube 10 breaking. At the same time, the inclined plate 206 is arranged to incline backward. Therefore, when the center of the bamboo tube 10 is not aligned with the center of the central axis 205, the abutting positions of its end at each abutting position on the inclined plate 206 are different and in an inclined shape. When the bamboo tube 10 is pressed, during the process of the inclined plate 206 moving backward, the center of the bamboo tube 10 moves towards the center of the central axis 205, which can play a role of centering and alignment.

[0065] The inclined surface is covered with a surface elastic layer 207. The outer periphery of the surface elastic layer 207 is fixedly connected to the inclined surface. The middle part of the surface elastic layer 207 forms a movable part that abuts against the end of the bamboo tube 10 and automatically elastically adjusts the pressing position, and the movable part is movably arranged between the inclined surface. In this way, by providing the movable part, the end of the bamboo tube 10 is driven to move, and the center of the bamboo tube 10 is driven to be aligned with the center of the central axis 205, so that when the end of the bamboo tube 10 abuts against the top pressing disc 201, the center of the bamboo tube 10 is aligned with the center of the top pressing disc 201, achieving the purpose of high-precision and accurate cutting.

[0066] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Bamboo tube cutting method, characterized in that, Including the following steps: 1). Place the bamboo tube on the transmission structure, and the bamboo tube is transmitted to the cutting station; 2). A clamping structure and a rotating structure are respectively arranged on both sides of the cutting station. The clamping structure and the rotating structure respectively abut against both ends of the bamboo tube to relatively fix the bamboo tube; A cutting knife moving horizontally is arranged outside the cutting station, and the cutting knife moves along the axial direction of the bamboo tube to cut the outer wall of the bamboo tube to form a cutting seam; 3). After the rotating structure drives the bamboo tube to rotate by a set angle, the cutting knife moves along the axial direction of the bamboo tube to cut the outer wall of the bamboo tube to form a cutting seam; 4). Repeat operation step 3) until a set number of cutting seams are formed on the outer wall of the bamboo tube, and then the clamping structure and the rotating structure respectively release the abutment against the bamboo tube; The clamping structure has a clamping disk pressing against the end of the bamboo tube, and the rotating structure has a rotating disk pressing against the end of the bamboo tube; In step 2), when the bamboo tube is located at the cutting station, the clamping disk and the rotating disk respectively move towards the end of the bamboo tube and respectively press against the end of the bamboo tube to relatively fix the bamboo tube; A clamping avoidance groove for the cutting knife to pass through is arranged in the clamping disk, and the clamping avoidance groove horizontally penetrates through the clamping disk; A rotating avoidance groove for the cutting knife to pass through is arranged in the rotating disk, and the rotating avoidance groove horizontally penetrates through the rotating disk; When the cutting knife cuts the outer wall of the bamboo tube along the axial direction of the bamboo tube, the cutting knife passes through the clamping avoidance groove or the rotating avoidance groove; The rotating disk has a rotating side facing the end of the bamboo tube and in a conical shape. Along the direction from the center to the outer periphery of the rotating side, the rotating side is inclined away from the end of the bamboo tube; The clamping disk is arranged on a horizontally arranged rotating cylinder. A plurality of avoidance intervals are arranged in the clamping disk, and the plurality of avoidance intervals are arranged at intervals along the circumferential direction of the clamping disk; A moving disk moving back and forth along the axial direction of the rotating cylinder is arranged on the rotating cylinder. The moving disk includes a central shaft and a plurality of inclined plates, and the central shaft is movably connected to the rotating cylinder; A return spring for pushing the central shaft to reset towards the end of the bamboo tube is arranged between the central shaft and the rotating cylinder; The plurality of inclined plates are connected to the outer periphery of the central shaft and are arranged at intervals along the circumferential direction of the central shaft. The inclined plates are arranged opposite to the avoidance intervals; The inclined plate has an inclined surface abutting against the end of the bamboo tube. Along the direction away from the central shaft, the inclined surface is inclined away from the end of the bamboo tube; In step 2), after the clamping structure abuts against the end of the bamboo tube, the end of the bamboo tube abuts against the inclined surface. During the process of the clamping structure moving towards the end of the bamboo tube, the inclined plate is pressed to move away from the end of the bamboo tube and pass through the avoidance interval, and the return spring is compressed until the end of the bamboo tube abuts against the clamping disk.

2. The bamboo tube cutting method according to claim 1, characterized in that, In step 4), after the clamping structure and the rotating structure respectively release the abutment against the bamboo tube, the bamboo tube falls on the transmission structure for transmission.

3. The bamboo tube cutting method according to claim 1, characterized in that, The cutting station is provided with a clamping head. In step 1), after the bamboo tube is transported to the cutting station, the clamping head clamps the bamboo tube, and after lifting the bamboo tube to a set position, the pressing structure and the rotating structure move towards the ends of the bamboo tube respectively and abut against both ends of the bamboo tube.

4. The bamboo tube cutting method according to claim 3, characterized in that, The clamping head is arranged between the pressing structure and the rotating structure, and includes two clamping plates that move towards or away from each other. The two clamping plates are arranged at an upper and lower interval, and there is a clamping interval for the bamboo tube to pass through between the two clamping plates; each clamping plate has a clamping side facing the clamping interval, and the middle of the clamping side is recessed away from the clamping interval to form a clamping groove for the outer side of the bamboo tube to be embedded in. In step 1), after the bamboo tube is transported to the cutting station, the bamboo tube is located in the clamping interval, and the two clamping plates move towards each other to clamp the bamboo tube and drive the bamboo tube to move upwards to a set position.

5. The bamboo tube cutting method according to claim 1, characterized in that, A horizontally arranged cross beam is provided on the cutting station, and the cross beam extends along the axial direction of the bamboo tube; a rotating motor that moves along the cross beam is provided on the cross beam; the rotating motor is provided with a vertically downward rotating main shaft, and a cutting knife is connected to the rotating main shaft, and the cutting knife is horizontally arranged. A horizontally arranged protective cover is provided on the outer side of the cutting knife, and a protective cavity is provided in the protective cover. The protective cavity has an outer opening facing the cutting knife; the outer side of the cutting knife is embedded in the protective cavity through the outer opening, and the inner side of the cutting knife is exposed outside the protective cavity to form a cutting part. During the process of the cutting knife cutting the outer wall of the bamboo tube, the rotating motor reciprocates along the cross beam.

6. The bamboo tube cutting method according to claim 3, characterized in that, In step 3), after the rotating structure drives the bamboo tube to rotate by a set angle, the clamping head clamps and fixes the bamboo tube, the pressing disc moves away from the end of the bamboo tube, and the pressing disc rotates in place to reset the pressing avoidance groove. After the rotating disc moves away from the end of the bamboo tube and the rotating avoidance groove is reset, the pressing disc and the rotating disc move towards the ends of the bamboo tube respectively and press against the ends of the bamboo tube respectively. After the bamboo tube is relatively fixed, the clamping head releases the clamping of the bamboo tube.

7. The bamboo tube cutting method according to any one of claims 1 to 6, characterized in that, An encoder is provided on the cutting station, and a roller is connected to the encoder; in step 3), before the rotating structure drives the bamboo tube to rotate, the roller abuts against the outer circumference of the bamboo tube, and during the process of the rotating structure driving the bamboo tube to rotate, the arc length of the rotation of the bamboo tube is monitored through the encoder.

8. The bamboo tube cutting method according to claim 3, characterized in that The inclined surface is covered with a surface elastic layer. The outer circumference of the surface elastic layer is fixedly connected to the inclined surface. The middle of the surface elastic layer forms a movable part that abuts against the end of the bamboo tube and automatically elastically adjusts the pressing position, and the movable part is movably arranged with the inclined surface.

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