Portable low-damage clump bamboo electric wire saw harvesting equipment and use method thereof

Abstract

The application discloses a portable low-damage clump bamboo electric wire saw felling equipment and a use method thereof. The equipment comprises a clamping device, a driving device, a tightening device and a crank cutting device. The portable low-damage clump bamboo electric wire saw felling equipment solves the problems of a large volume of a general electric cutting device, the inability to realize selective felling of mature bamboo inside clump bamboo and rough cutting section, and the disadvantages of time and labor consumption of traditional manual wire saw cutting. The diamond wire saw is quickly disassembled and cut around to realize selective bamboo felling and accurate cutting of specified plants inside clump bamboo. In addition, the diamond wire saw has a small diameter, a small cutting gap and a smooth section, and can greatly reduce material loss. The device is integrated with the clamping and tightening devices, realizes electric cutting, and has high efficiency and portability.

Description

Technical Field

[0001] This invention relates to the technical field of forestry machinery, and in particular to a portable, low-damage electric wire saw for harvesting clump bamboo and its method of use. Background Technology

[0002] New shoots of clumping bamboo typically grow close to older bamboo, forming a dense clump. In practice, it's often impossible to directly cut or prune the inner parts of this type of bamboo. While traditional manual wire saws offer accuracy and relatively clean cuts with safety, their manual operation is time-consuming, labor-intensive, and inefficient. Electric cutting primarily uses chainsaws or reciprocating saws. Although electric cutting improves efficiency, the varying fiber densities of bamboo and the use of chainsaws or reciprocating saws often result in uneven cuts from clumping bamboo. Furthermore, exposed blades increase the risk of injury. Clearly, combining the advantages of both methods—using a wire saw as the cutting tool and implementing electric cutting—would significantly improve efficiency, ensure user safety, guarantee clean cuts, and allow for accurate cutting of the target plant. This would be of great importance to forestry production.

[0003] Based on the above problems, there is a need to design a portable, compact bamboo cutting device that can flexibly select harvesting targets, produce a smooth cutting surface, and minimize material loss. This invention proposes a portable, low-damage electric wire saw that uses a diamond wire saw as the cutting tool. This device can avoid obstacles and integrates cutting, clamping, and tensioning into a single unit for cutting bamboo. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a portable, low-damage electric wire saw for harvesting clump-forming bamboo and its method of use.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by the present invention is as follows:

[0006] A portable, low-damage electric wire saw for harvesting clump-forming bamboo includes a clamping device, a drive device, a tightening device, and a crank cutting device. The clamping device is used to hold the bamboo. The drive device provides power to the tightening device and the crank cutting device. The tightening device includes a ball screw and a first ball joint. The crank cutting device includes an eccentric wheel, a crank rocker mechanism, a second ball joint, and a wire saw. The drive device can drive the ball screw to rotate, causing the moving seat fitted on the screw to move linearly. One end of the first ball joint is fixed to the moving seat. The drive device can drive the eccentric wheel to rotate. One end of the crank rocker mechanism is fixed at a non-center position of the eccentric wheel, and the other end is connected to one end of the second ball joint. One end of the wire saw is fixedly connected to the first ball joint, and the other end is fixedly connected to the second ball joint. The wire saw can contact the bamboo. The first ball joint can tension the wire saw through linear movement, and the second ball joint can drive the wire saw to perform cutting motion through reciprocating motion.

[0007] To optimize the above technical solution, the specific measures also include:

[0008] The aforementioned drive device includes a motor, a support plate, a first gear, a second gear, a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a first bracket, and a battery pack. The motor, the first gear, and the second gear are all mounted on the support plate. The axles of the first gear and the first bevel gear are simultaneously fixedly connected to the drive shaft of the motor. The second gear meshes with the first gear, and the second bevel gear meshes with the first bevel gear. The third bevel gear is coaxially fixedly connected to the second bevel gear and is mounted on the first bracket. The fourth bevel gear meshes with the third bevel gear, and the axle of the fourth bevel gear is fixedly connected to the lead screw of the ball screw. The second gear is detachably coaxially connected to the eccentric wheel. The battery pack is connected to the motor and supplies power to the motor.

[0009] The aforementioned clamping device includes scissor-shaped clamping claws and a tensioning rod. The tensioning rod is connected to the clamping claws via a transmission mechanism. When the tensioning rod loosens or tightens the clamping claws, the clamping claws can loosen or clamp the bamboo. The clamping claws are positioned and mounted on the support plate.

[0010] The centers of the second gear and the eccentric wheel are aligned vertically. Both the centers of the second gear and the eccentric wheel are hollow. The center of the eccentric wheel is provided with a locking groove. The crank cutting device also includes a rotating rod. One end of the rotating rod is provided with a rod head corresponding to the locking groove. When the rotating rod does not simultaneously penetrate the centers of the second gear and the eccentric wheel, the second gear and the eccentric wheel are separated. When the rotating rod simultaneously penetrates the centers of the second gear and the eccentric wheel, the second gear and the eccentric wheel are coaxially and fixedly connected.

[0011] A second bracket is installed on the aforementioned support plate. The second bracket is provided with a limiting groove. The crank rocker mechanism includes three crank rods connected in sequence. The first crank rod is hinged to the non-center position of the eccentric wheel. The second crank rod is hinged to both the first and third crank rods. The center position of the second crank rod is rotatably positioned in the housing. The third crank rod is fixedly connected to one end of the second ball joint. The third crank rod passes through the limiting groove. Under the limitation of the limiting groove, the third crank rod can only move along the rod axis and cannot rotate.

[0012] The aforementioned support plate, first gear, second gear, first bevel gear, second bevel gear, third bevel gear, fourth bevel gear, first bracket, ball screw, eccentric wheel and crank rocker mechanism are all installed in the housing. The first ball joint and the second ball joint both pass through the housing. The support plate, first bracket and ball screw are all fixedly connected to the housing.

[0013] The first ball joint is divided into two sections, which are connected by a spring. When the first ball joint is subjected to an axial external force, the spring can extend or shorten the first ball joint by stretching or contracting.

[0014] The aforementioned outer casing is provided with a fixing slot. When the tensioning rod is moved to loosen or tighten the clamping claw, the tensioning rod can be locked into the fixing slot for a limit, thereby keeping the clamping claw in a loose or tight state.

[0015] The aforementioned outer casing is provided with an enclosure, which is located outside the second ball joint to protect the operation of the second ball joint.

[0016] A method for using a portable, low-damage electric wire saw for harvesting clump-forming bamboo, employing the aforementioned portable, low-damage electric wire saw for harvesting clump-forming bamboo, with the specific steps as follows:

[0017] Step a: Connect the rotary rod only to the second gear, so that the second gear and the eccentric wheel are separated. Start the motor and reverse the motor. The motor drives the ball screw to rotate. The moving seat on the screw moves forward with the first ball joint. The moving seat moves to the front end of the screw. Turn off the motor. One end of the wire saw is fixed to the second ball joint, and the other end is fixed to the first ball joint after passing around the bamboo.

[0018] Step b: Clamp the gripper onto the bamboo, then tighten the tension rod to make the gripper clamp the bamboo, and then insert the tension rod into the fixing slot;

[0019] Step c: Start the motor and make it rotate forward. The moving seat on the lead screw moves backward with the first ball joint. During the backward movement, the wire saw contacts the bamboo and is tensioned by the bamboo. Then, turn off the motor.

[0020] Step d: The rotating rod simultaneously passes through the center of the second gear and the eccentric wheel, making the second gear and the eccentric wheel coaxially and fixedly connected. Start the motor and make the motor rotate forward, driving the first gear to rotate. The first gear meshes with the second gear, and the rotation is transmitted to the second gear. The second gear drives the eccentric wheel to rotate. The eccentric wheel drives the crank-rocker mechanism to move. The crank-rocker mechanism drives the second ball joint to reciprocate. The second ball joint drives the wire saw to reciprocate. At the same time, the first ball joint moves backward, and the wire saw continuously tightens, realizing the cutting action of bamboo.

[0021] Step e: After the bamboo has been cut, turn off the motor, loosen the tension rod to release the clamping jaws from the bamboo, then remove the rotating rod to make the second gear and eccentric wheel no longer coaxially fixed, and disconnect the wire saw from the first ball joint.

[0022] The beneficial effects of this invention are:

[0023] 1. This invention solves the problems of traditional wire saw cutting of clump bamboo, which requires manual cutting, is time-consuming and labor-intensive, and ordinary electric cutting saws produce rough cut surfaces, exposed blades, and certain safety hazards, and cannot cut specific plants. It designs a portable, low-damage electric wire saw that integrates a clamping device and a tightening device, which can cut specific plants while improving the accuracy of the cut surface, reducing material loss, improving the efficiency of forestry production activities, and ensuring the safety of daily cutting work to a certain extent. The device is comprehensive in function, has an excellent structure, and is easy to operate.

[0024] 2. The present invention combines the reciprocating motion of the crank rocker mechanism with the tensioning effect of the tightening device to realize an electric wire saw capable of cutting the target bamboo around. The device has a novel structure, is simple and easy to operate, and is also easy to install.

[0025] 3. The bevel gear and ball screw structure designed in this invention realizes the tension before wire saw cutting and the gradual tightening during the cutting process, ensuring the continuity and integrity of the cutting motion. This structure meets the needs of the application scenario, is not only easy to operate, but also greatly improves the overall work efficiency.

[0026] 4. The design of this invention connects and disconnects the gear and eccentric wheel through a single rotating rod, which not only simplifies the tensioning process but also ensures the continuity of the cutting process. Integrating the two greatly simplifies the overall structure of the mechanism and reduces costs. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the present invention, which includes a casing, handle, and battery.

[0028] Figure 2 This is a schematic diagram of the structure of the present invention with an outer shell;

[0029] Figure 3 This is a schematic diagram of the clamping device;

[0030] Figure 4 for Figure 3 A sectional view;

[0031] Figure 5 A schematic diagram showing the fixing of the second gear and the eccentric wheel;

[0032] Figure 6 for Figure 5 A sectional view;

[0033] Figure 7 This is a schematic diagram showing the second gear and eccentric wheel not being fixed.

[0034] Figure 8 for Figure 7 A sectional view;

[0035] Figure 9 for Figure 2 The right view;

[0036] Figure 10 for Figure 2 A sectional view.

[0037] The attached diagram is labeled as follows: including motor 1, support plate 2, first gear 3, second gear 4, first bevel gear 5, second bevel gear 6, third bevel gear 7, fourth bevel gear 8, first bracket 9, ball screw 10, eccentric wheel 11, crank rocker mechanism 12, second bracket 13, first ball joint 14, second ball joint 15, clamping claw 16, wire saw 17, bamboo 18, outer shell 19, battery pack 20, tensioning rod 21, and rotating rod 22. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the application is described and illustrated below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application. All other embodiments obtained by those skilled in the art based on the embodiments provided in this application without inventive effort are within the scope of protection of this application.

[0039] Obviously, the accompanying drawings described below are merely some examples or embodiments of this application. Those skilled in the art can apply this application to other similar scenarios based on these drawings without any inventive effort. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content disclosed in this application, any changes to design, manufacturing, or production based on the technical content disclosed in this application are merely conventional technical means and should not be construed as insufficient disclosure of the content of this application.

[0040] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this application may be combined with other embodiments without conflict.

[0041] Unless otherwise defined, the technical or scientific terms used in this application shall have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms “a,” “an,” “an,” “the,” and similar words used in this application do not indicate quantity limitation and may indicate singular or plural. The terms “comprising,” “including,” “having,” and any variations thereof used in this application are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or units (elements) is not limited to the listed steps or units, but may also include steps or units not listed, or may include other steps or units inherent to these processes, methods, products, or devices. The terms “connected,” “linked,” “coupled,” and similar words used in this application are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms “multiple” / “several” used in this application refer to two or more. “And / or” describes the relationship between related objects, indicating that three relationships may exist; for example, “A and / or B” can indicate: A alone, A and B simultaneously, or B alone. The character " / " generally indicates that the preceding and following objects are in an "or" relationship. The terms "first," "second," and "third" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects.

[0042] like Figure 1-10As shown, an electric wire saw for cutting clump-forming bamboo includes a motor 1, a support plate 2, a first gear 3, a second gear 4, a first bevel gear 5, a second bevel gear 6, a third bevel gear 7, a fourth bevel gear 8, a first bracket 9, a ball screw 10, a first ball joint 14, a second ball joint 15, an eccentric wheel 11, a crank-rocker mechanism 12, a second bracket 13, a clamping claw 16, a wire saw 17, a housing 19, a battery pack 20, a tensioning rod 21, and a rotating rod 22. The process involves locating the target bamboo 18 to be cut, disassembling the detachable end of the wire saw 17, passing it around the target bamboo 18, and then fixing the wire saw 17 to the first ball joint 14. Using the tensioning rod 21, the clamping claw 16 is first released, maintaining a suitable distance from the bamboo 18. Then, the tensioning rod 21 is controlled to tighten the clamping claw 16. Finally, the rotating rod 22 is checked to ensure it is in working condition, i.e., the second gear 4 is fixed to the eccentric wheel 11. If the device is in a fixed state, after releasing the fixed state, press the switch on the handle to start motor 1. Motor 1 rotates, driving the first bevel gear 5 to rotate. Due to the meshing relationship, the first bevel gear 5 transmits the rotation to the second bevel gear 6. Due to the coaxial relationship, the second bevel gear 6 transmits the rotation to the third bevel gear 7. Then, due to the meshing of the third bevel gear 7 and the fourth bevel gear 8, the rotation is transmitted to the fourth bevel gear 8. The fourth bevel gear 8 is coaxial with the ball screw 10, and finally transmits the rotation to the ball screw 10. There is a moving seat on the ball screw 10. When the ball screw 10 rotates, the moving seat moves towards the fourth bevel gear 8, and the moving seat is connected to the first ball joint 14. Since the first ball joint 14 is connected to the wire saw 17, the wire saw 17 will slowly tension. Manually adjust until the cutting plane formed by the wire saw 17 is parallel to the plane of the clamping jaw 16. After it is fully tensioned, turn off the motor 1 switch. Next, rotate the rotary rod 22 90° and insert it into the eccentric wheel 11 to fix the second gear 4 and the eccentric wheel 11. Turn on the switch on the handle again, and the motor 1 starts to rotate. While the first ball joint 14 drives the wire saw 17 to tighten, the motor 1 drives the first gear 3 to rotate. Since the first gear 3 meshes with the second gear 4, the rotation is transmitted to the second gear 4. Because the rotary rod 22 fixes the second gear 4 and the eccentric wheel 11, the eccentric wheel 11 rotates with the second gear 4. The eccentric wheel 11 drives the crank rod on the crank-rocker mechanism 12 to reciprocate on the second bracket 13. The crank rod is fixed to the second ball joint 15. The second ball joint 15 is connected to the wire saw 17, which drives the wire saw 17 to reciprocate. The other end of the wire saw 17 is connected to the first ball joint 14, which contains a spring. Under the action of the spring in the second ball joint 15 and the first ball joint 14, the wire saw 17 reciprocates and cuts, achieving a process of tightening and cutting simultaneously until the cutting motion is completed. Then, the motor 1 is turned off, the tensioning rod 21 is retracted to the middle position and moved towards the bamboo 18, the clamping claw 16 is released and separated from the bamboo 18, and the rotating rod 22 is lifted and rotated to the non-working position to disconnect the connection between the wire saw 17 and the first ball joint 14. One cutting process is completed.

[0043] In this example, the eccentric wheel 11 has a slot, and the second gear 4 has two perpendicular slots, one of which is a through slot. The rotating rod 22 can engage with it. When the rotating rod 22 is inserted into the eccentric wheel 11 through the through slot of the second gear 4, the second gear 4 will rotate with the eccentric wheel 11. When the rotating rod 22 is only inserted into the non-through slot of the second gear 4, the eccentric wheel 11 will not rotate with the second gear 4. Its state is as follows. Figure 5-8 As shown.

[0044] In the example, both the outer shell 19 and the support plate 2 have holes to facilitate the engagement of the tensioning rod 21 with the clamping claw 16. The outer shell 19 is provided with a keyway blind hole to facilitate the movement of the tensioning rod 21 and to realize the opening and closing of the clamping claw 16, and a slot to facilitate the fixing of the clamping claw 16. The support plate 2 is provided with a V-shaped groove to facilitate the fixing of the clamping claw 16.

[0045] In the example, the first ball joint 14 is equipped with a spring, and the second ball joint 15 drives the wire saw 17 and the spring to work together to realize the reciprocating motion of the wire saw 17.

[0046] In the example, the handle is equipped with a reversing switch, which can reverse the motor 1 and loosen the wire saw 17.

[0047] In the example, the connection between the second ball joint 15 and the wire saw 17 is generally fixed, but it can be disassembled when the wire saw 17 needs to be replaced.

[0048] In the example, one end of the ball screw 10 is rotatably connected to the first bracket 9, and the other end is rotatably connected to the housing 19. The movable seat of the ball screw 10 is connected to the first ball joint 14 through a rod, so that the first ball joint 14 moves along the axis of the ball screw 10 with the movable seat.

[0049] In this example, motor 1 is powered by battery pack 20, which is rechargeable, easy to use and remove, and suitable for outdoor work.

[0050] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should be considered within the scope of protection of the present invention.

Claims

1. A portable, low-damage electric wire saw for harvesting clump-forming bamboo, characterized in that: The device includes a clamping device, a driving device, a tightening device, and a crank cutting device. The clamping device is used to clamp bamboo (18). The driving device is used to provide power to the tightening device and the crank cutting device. The tightening device includes a ball screw (10) and a first ball joint (14). The crank cutting device includes an eccentric wheel (11), a crank rocker mechanism (12), a second ball joint (15), and a wire saw (17). The driving device can drive the lead screw of the ball screw (10) to rotate, causing the movable seat sleeved on the lead screw to move linearly. One end of the first ball joint (14) is fixed on the movable seat. The driving device can drive the eccentric wheel (11) to rotate. One end of the crank rocker mechanism (12) is fixed on the eccentric wheel. (11) At the non-wheel center position, the other end is connected to one end of the second ball joint (15). One end of the wire saw (17) is fixedly connected to the first ball joint (14), and the other end is fixedly connected to the second ball joint (15). The wire saw (17) can contact the bamboo (18). The first ball joint (14) can tension the wire saw (17) through linear movement. The second ball joint (15) can drive the wire saw (17) to perform cutting motion through reciprocating motion. The driving device includes a motor (1), a support plate (2), a first gear (3), a second gear (4), a first bevel gear (5), a second bevel gear (6), a third bevel gear (7), a fourth bevel gear (8), a first bracket (9), and a battery pack (20). The motor (1) The first gear (3) and the second gear (4) are both mounted on the support plate (2). The axle of the first gear (3) and the axle of the first bevel gear (5) are simultaneously fixedly connected to the drive shaft of the motor (1). The second gear (4) meshes with the first gear (3). The second bevel gear (6) meshes with the first bevel gear (5). The third bevel gear (7) is coaxially fixedly connected with the second bevel gear (6). The third bevel gear (7) and the second bevel gear (6) are simultaneously mounted on the first bracket (9). The fourth bevel gear (8) meshes with the third bevel gear (7). The axle of the fourth bevel gear (8) is fixedly connected to the lead screw of the ball screw (10). The second gear (4) and the eccentric wheel (11) are separable. The battery pack (20) is connected to the motor (1) and supplies power to the motor (1). The centers of the second gear (4) and the eccentric wheel (11) are aligned vertically. The centers of the second gear (4) and the eccentric wheel (11) are hollow. The center of the eccentric wheel (11) is provided with a locking groove. The crank cutting device also includes a rotating rod (22). One end of the rotating rod (22) is provided with a rod head corresponding to the locking groove. When the rotating rod (22) does not simultaneously penetrate the centers of the second gear (4) and the eccentric wheel (11), the second gear (4) and the eccentric wheel (11) are separated. When the rotating rod (22) simultaneously penetrates the centers of the second gear (4) and the eccentric wheel (11), the second gear (4) and the eccentric wheel (11) are coaxially fixedly connected.

2. The portable, low-damage electric wire saw for harvesting clump-forming bamboo according to claim 1, characterized in that: The clamping device includes a scissor-shaped clamping claw (16) and a tension rod (21). The tension rod (21) is connected to the clamping claw (16) in a transmission manner. When the tension rod (21) loosens or tightens the clamping claw (16), it can cause the clamping claw (16) to loosen or clamp the bamboo (18). The clamping claw (16) is positioned and installed on the support plate (2).

3. The portable, low-damage electric wire saw for harvesting clump-forming bamboo according to claim 2, characterized in that: The support plate (2) is equipped with a second bracket (13), and the second bracket (13) is provided with a limiting groove. The crank rocker mechanism (12) includes three crank rods connected in sequence. The first crank rod is hinged to the non-center position of the eccentric wheel (11). The second crank rod is hinged to the first crank rod and the third crank rod respectively. The center position of the second crank rod is rotatably positioned in the outer shell (19). The third crank rod is fixedly connected to one end of the second ball joint (15). The third crank rod passes through the limiting groove. Under the limitation of the limiting groove, the third crank rod can only move along the rod axis and cannot rotate.

4. The portable, low-damage electric wire saw for harvesting clump-forming bamboo according to claim 3, characterized in that: The support plate (2), first gear (3), second gear (4), first bevel gear (5), second bevel gear (6), third bevel gear (7), fourth bevel gear (8), first bracket (9), ball screw (10), eccentric wheel (11) and crank rocker mechanism (12) are all installed in the housing (19). The first ball joint (14) and second ball joint (15) both pass through the housing (19). The support plate (2), first bracket (9) and ball screw (10) are all fixedly connected to the housing (19).

5. A portable, low-damage electric wire saw for harvesting clump-forming bamboo according to claim 4, characterized in that: The first ball joint (14) is divided into two sections, which are connected by a spring. When the first ball joint (14) is subjected to an axial external force, the spring can extend or shorten the first ball joint (14) by stretching or contracting.

6. The portable, low-damage electric wire saw for harvesting clump-forming bamboo according to claim 4, characterized in that: The outer shell (19) is provided with a fixed slot. When the tension rod (21) moves to relax or tighten the clamping claw (16), the tension rod (21) can be locked into the fixed slot for a limit, thereby keeping the clamping claw (16) in a relaxed or tightened state.

7. A portable, low-damage electric wire saw for harvesting clump-forming bamboo according to claim 4, characterized in that: The outer casing (19) is provided with a protective enclosure, which is located outside the second ball joint (15) to protect the operation of the second ball joint (15).

8. A method of using a portable, low-damage electric wire saw for harvesting clump-forming bamboo, characterized by: The specific steps of using the portable, low-damage electric wire saw for harvesting clump bamboo as described in claim 4 are as follows: Step a: Connect the rotary rod (22) only to the second gear (4), so that the second gear (4) and the eccentric wheel (11) are separated. Start the motor (1) and make the motor (1) reverse. The motor (1) drives the ball screw (10) to rotate. The moving seat on the screw carries the first ball joint (14) forward. The moving seat moves to the front end of the screw. Turn off the motor (1). One end of the wire saw (17) is fixed to the second ball joint (15), and the other end passes around the bamboo (18) and is fixed to the first ball joint (14). Step b: Clamp the clamping claw (16) onto the bamboo (18), then tighten the tension rod (21) to clamp the clamping claw (16) onto the bamboo (18), and then insert the tension rod (21) into the fixing slot. Step c: Start the motor (1) and make the motor (1) rotate forward. The moving seat on the lead screw moves backward with the first ball joint (14). The wire saw (17) follows backward and contacts the bamboo (18) and is tensioned by the bamboo (18). Then turn off the motor (1). Step d: The rotating rod (22) simultaneously passes through the center of the second gear (4) and the eccentric wheel (11), so that the second gear (4) and the eccentric wheel (11) are coaxially fixedly connected. The motor (1) is started, so that the motor (1) rotates forward, driving the first gear (3) to rotate. The first gear (3) meshes with the second gear (4), and the second gear (4) drives the eccentric wheel (11) to rotate. The eccentric wheel (11) drives the crank rocker mechanism (12) to move. The crank rocker mechanism (12) drives the second ball joint (15) to reciprocate. The second ball joint (15) drives the wire saw (17) to reciprocate. At the same time, the first ball joint (14) moves backward, and the wire saw (17) tightens continuously, realizing the cutting action of bamboo (18). Step e: After the bamboo (18) is cut, turn off the motor (1), loosen the tension rod (21) so that the clamping claw (16) releases the bamboo (18), then remove the rotating rod (22) so that the second gear (4) and the eccentric wheel (11) are no longer coaxially fixed, and disassemble the connection between the wire saw (17) and the first ball joint (14).

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