A cutting method for controlling winter shoots and promoting flowers for planting of litchi trees

Abstract

The application discloses a cutting method for controlling winter shoots and promoting flowers of litchi trees, which comprises the following steps: determining a litchi tree to be cut; judging a suitable cutting type of the litchi tree to be cut; setting the cutting type and its cutting parameters on a cutting terminal for controlling winter shoots and promoting flowers; starting the cutting terminal for controlling winter shoots and promoting flowers, and controlling the embracing mechanism of the cutting terminal for controlling winter shoots and promoting flowers to embrace the trunk to be cut by an electric control system of the cutting terminal for controlling winter shoots and promoting flowers; driving the cutting knife to move radially close to the trunk to be cut by a radial driving mechanism until the cutting knife is inserted into the trunk to a specified depth; driving the cutting knife to move circularly by a circumferential driving mechanism to implement annular cutting; or simultaneously driving the cutting knife to move axially by an axial driving mechanism to implement spiral cutting; and releasing the trunk by the electric control system after cutting is completed. The litchi tree is cut by the automatic cutting method, the working efficiency is high, the cutting depth is consistent, and better shoot control effect is obtained.

Description

Technical Field

[0001] This invention relates to litchi cultivation methods, specifically to a method for controlling winter shoots and promoting flowering in Xianjinfeng litchi cultivation. Background Technology

[0002] Lychee is an economic crop rich in nutrients, containing glucose, sucrose, protein, fat, and vitamins A, B, and C, as well as folic acid, arginine, tryptophan, and other nutrients, which are very beneficial to human health. It is widely cultivated in southern my country. In order to improve the quality of lychee, it is necessary to control the shoot growth of lychee trees.

[0003] Shoot control in litchi cultivation is a measure to promote the physiological differentiation of flower buds in litchi trees. Essentially, it aims to transform the litchi tree from vegetative growth to reproductive growth. This is mainly achieved through chemical or physical methods to reduce the content of auxins and gibberellins in the litchi tree, while increasing the content of abscisic acid and cytokinins. This slows down or stops vegetative growth, increases the accumulation of organic nutrients in the litchi tree, and prepares it for the morphological differentiation of flower buds.

[0004] The most common physical method for controlling shoot growth in litchi trees is girdling or ring barking. Girdling or ring barking blocks or affects the transport of organic nutrients from the above-ground parts of the litchi tree to the underground parts, weakening root growth and reducing the ability of the litchi roots to absorb water and inorganic salts, thus inhibiting above-ground growth. Specifically, when the litchi tree begins to differentiate into flower buds, a girdling knife or other tools are used to girdle or ring bark the trunk or branches. When using a girdling knife, a person holds the knife and circles the litchi trunk or branch, leaving a ring or spiral cut on the bark, thus achieving the purpose of controlling shoot growth.

[0005] The above-mentioned methods of shoot control have the following shortcomings:

[0006] 1. Manual cutting is time-consuming, labor-intensive, and inefficient.

[0007] 2. The bark is cut manually, relying entirely on the worker's feel. The depth of the cut is inconsistent, making it difficult to achieve precise cuts. The effect of controlling the shoots needs further improvement. Summary of the Invention

[0008] The purpose of this invention is to overcome the above-mentioned problems and provide a method for controlling winter shoots and promoting flowering in the cultivation of Xianjinfeng litchi. This method uses an automatic cutting method to cut the litchi tree, which not only has high work efficiency, but also has a relatively consistent cutting depth, which is conducive to obtaining better shoot control effect.

[0009] The objective of this invention is achieved through the following technical solution:

[0010] A method for controlling winter shoots and promoting flowering in Xianjinfeng litchi cultivation includes the following steps:

[0011] (1) Identify the litchi tree to be cut;

[0012] (2) Determine the appropriate cutting type for the litchi tree to be cut. The cutting type includes spiral girdling and ring cutting.

[0013] (3) Set the cutting type and cutting parameters on the winter shoot control and flower promotion cutting terminal;

[0014] (4) Start the winter shoot control and flower promotion cutting terminal. The electric control system of the winter shoot control and flower promotion cutting terminal controls the opening of the embracing mechanism of the winter shoot control and flower promotion cutting terminal and places the embracing mechanism on the outside of the trunk to be cut. Then the electric control system controls the embracing mechanism to clamp the trunk to be cut.

[0015] The electric control system controls the cutting mechanism of the winter shoot flowering cutting terminal to perform the cutting operation: the radial drive mechanism drives the cutting blade to move radially to approach the trunk to be cut until the cutting blade is inserted into the trunk to a specified depth; at the same time, the circumferential drive mechanism drives the cutting blade to move circumferentially, causing the cutting blade to make a ring cut on the trunk bark; if the spiral girdling method is performed, the axial drive mechanism drives the cutting blade to move axially, causing the cutting blade to make a spiral cut on the trunk bark.

[0016] (5) After the cutting is completed, the electric control system controls the embracing mechanism to release the tree trunk that has been cut, and then moves the winter shoot-promoting flower cutting terminal away from the tree trunk that has been cut.

[0017] In a preferred embodiment of the present invention, in step (2), the method for determining the cutting type is as follows:

[0018] If the litchi tree is growing vigorously, has a thick canopy, and is lightly pruned, the spiral ring-barking method is suitable.

[0019] If the lychee tree is of moderate growth, or is a fruit-bearing tree that only produces one autumn shoot after harvesting, or is an old lychee tree, the girdling method is suitable.

[0020] In a preferred embodiment of the present invention, in step (3), the cutting parameters of both the spiral circumferential stripping method and the circumferential cutting method include cutting depth, cutting movement speed, cutting length, etc.

[0021] In a preferred embodiment of the present invention, in step (3), the cutting parameters of the spiral girdling method further include a girdling width of 0.2cm to 0.4cm, a number of turns of 1.2 to 1.8, a girdling spiral angle of 16 degrees to 19 degrees, and a pitch equal to the diameter of the tree trunk.

[0022] In a preferred embodiment of the present invention, in step (4), the opening and closing operation method of the circumferential mechanism is as follows:

[0023] The opening and closing drive motor drives the opening and closing transmission screw to rotate, which in turn drives the opening and closing transmission screw nut and the opening and closing moving frame to move linearly. Then, the opening and closing transmission connecting rod drives the two semi-circular ring mounting parts to flip outward in the opposite direction in a synchronized manner until the lychee tree to be cut can be placed between the two semi-circular ring mounting parts.

[0024] Place the two semi-circular ring-shaped mounting pieces on the outside of the lychee tree to be cut. Drive the opening and closing drive motor to rotate the opening and closing transmission screw in the opposite direction. The opening and closing transmission connecting rod will cause the two semi-circular ring-shaped mounting pieces to rotate inward synchronously until the two semi-circular ring-shaped mounting pieces are combined into a complete circular structure.

[0025] The electric control system controls all the surrounding clamping components to perform the clamping operation. The clamping cylinder drives the clamping wheel and spring mounting bracket to approach the tree trunk, and then the clamping wheel presses against the outside of the tree trunk to achieve clamping. During this process, when the clamping wheel just contacts the surface of the tree trunk, the clamping cylinder continues to drive a set distance, causing the clamping spring to compress and deform, achieving adaptive elastic clamping. This avoids forcibly squeezing the tree trunk and causing additional damage, while also adapting to the outer contour of the tree trunk to achieve more precise clamping.

[0026] In a preferred embodiment of the present invention, in step (4), the specific cutting operation of the cutting mechanism is as follows:

[0027] The electric control system controls the radial drive motor of the radial drive mechanism to drive the radial transmission gear to rotate, and then the radial transmission rack carries the cutting blade to move radially closer to the tree trunk until the cutting blade is inserted into the tree trunk to a specified depth;

[0028] Simultaneously, the circumferential drive motor of the circumferential drive mechanism drives the circumferential transmission gear to rotate, while the circumferential transmission gear ring that meshes with the circumferential transmission gear remains stationary. This circumferential transmission gear ring includes two semi-circular gear rings respectively fixed inside the two semi-circular encircling mounting parts, which at this time form a complete circumferential transmission gear ring. The circumferential drive gear moves circumferentially along the circumferential transmission gear ring, thereby synchronously moving the contour cutting component, the axial drive mechanism, and the radial drive mechanism. The radial drive mechanism is mounted on the contour cutting component, the contour cutting component is mounted on the axial drive mechanism, and the axial drive mechanism is mounted on the circumferential drive mechanism. During the circumferential movement, the cutting blade performs a circular cut on the bark of the tree trunk.

[0029] Furthermore, when performing the spiral girdling method, while moving in a circular motion, the axial drive motor of the axial drive mechanism drives the contour cutting component to move axially. At this time, the motion trajectory of the cutting blade superimposed on the circular motion is spiral, thereby performing spiral cutting on the bark of the tree trunk.

[0030] Furthermore, the cutting mechanism is located inside the embracing mechanism. When the embracing mechanism is clamping the trunk to be cut, the contour cutting component gradually approaches the trunk. When the contour roller just touches the trunk surface, the clamping operation is not yet complete. The embracing mechanism continues to close, causing the contour spring to compress and deform until the clamping operation is completed. At this time, the contour spring elastically presses the contour roller against the trunk surface, and the relative position of the contour roller and the adjusted cutting blade remains unchanged. When the cutting blade and the contour roller move in a circle, the contour roller serves as the basic support point for the cutting blade and moves contour-following along the surface of the trunk, ensuring that the cutting depth of the cutting blade remains constant, further improving the cutting quality and obtaining better shoot control.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] 1. The cutting method of the present invention uses an automatic cutting method to cut the litchi tree, which not only has high work efficiency, but also has a more consistent cutting depth, which is conducive to obtaining better shoot control effect.

[0033] 2. The cutting method of the present invention uses an electric clamping mechanism to automatically clamp the tree trunk to be cut and fix it in a designated position for cutting. At the same time, it can prevent positional displacement during the cutting process, improve the cutting quality, and obtain better shoot control effect. Attached Figure Description

[0034] Figures 1-2 This is a three-dimensional structural diagram of the winter shoot control and flowering promotion cutting terminal in two different states of the method for controlling winter shoots and promoting flowering used in the cultivation of Xianjinfeng litchi according to the present invention.

[0035] Figure 3 This is a three-dimensional structural diagram of the circumferential clamping assembly of the winter shoot control and flower-promoting cutting terminal of the present invention.

[0036] Figure 4 This is a three-dimensional structural diagram of the cutting mechanism and a semi-circular circumferential mounting component of the winter shoot control and flowering promotion cutting terminal of the present invention.

[0037] Figure 5 for Figure 4 A magnified view of X in the image.

[0038] Figure 6 This is a three-dimensional structural diagram of the cutting mechanism of the winter shoot control and flower-promoting cutting terminal of the present invention.

[0039] Figure 7 This is a three-dimensional structural diagram of the winter shoot control and flower promotion cutting terminal equipment of the present invention mounted on an automatic walking device. Detailed Implementation

[0040] To enable those skilled in the art to fully understand the technical solutions of the present invention, the present invention will be further described below in conjunction with embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto. Example 1

[0041] The method for controlling winter shoots and promoting flowering in the cultivation of Xianjinfeng lychee in this embodiment uses a handheld cutting terminal for cutting. The cutting terminal includes a circling mechanism for automatically holding the lychee tree, a cutting mechanism for automatically cutting the lychee tree, and an electric control system for controlling the operation of the circling mechanism and the cutting mechanism.

[0042] Combination Figures 1-2 The encircling mechanism includes an encircling bracket 1, a semi-circular encircling mounting component 2, an encircling clamping assembly, and an opening and closing drive mechanism. There are two semi-circular encircling mounting components 2, and one end of each semi-circular encircling mounting component 2 is hinged to the same rotation center of the encircling bracket 1.

[0043] Combination Figure 3 The circumferential clamping assembly has at least two sets, which are arranged circumferentially in the clamping state. Each set of circumferential clamping assemblies includes a clamping mounting frame 3, a clamping wheel 4, a spring mounting frame 5, a clamping spring 6, and a clamping electric cylinder 7. The clamping wheel 4 is rotatably connected to the clamping mounting frame 3. One end of the spring mounting frame 5 is fixedly connected to the telescopic rod of the clamping electric cylinder 7, and the other end of the spring mounting frame 5 is movably connected to the clamping mounting frame 3. The clamping spring 6 is sleeved on the clamping mounting frame 3, and its two ends abut against the clamping mounting frame 3 and the spring mounting frame 5, respectively. The cylinder body of the clamping electric cylinder 7 is fixedly connected to the inner wall of the semi-circular circumferential mounting component 2.

[0044] Combination Figures 1-2 The opening and closing drive mechanism includes an opening and closing drive motor 8, an opening and closing transmission assembly, and an opening and closing moving frame 9. The opening and closing drive motor 8 is mounted on the ring-shaped support 1. The opening and closing transmission assembly includes an opening and closing transmission screw, an opening and closing transmission screw nut, and an opening and closing transmission connecting rod 10. The opening and closing transmission screw nut is fixedly connected to the opening and closing moving frame 9, and the axis of the opening and closing transmission screw nut is perpendicular to the rotation center of the semi-circular ring-shaped mounting component 2. The two ends of the opening and closing transmission connecting rod 10 are respectively hinged to the opening and closing moving frame 9 and the semi-circular ring-shaped mounting component 2.

[0045] Combination Figures 4-6The cutting mechanism includes a contour cutting component, a circumferential drive mechanism for driving the contour cutting component to move circumferentially, an axial drive mechanism for driving the contour cutting component to move axially, and a radial drive mechanism for driving the contour cutting component to move radially. The circumferential drive mechanism includes a circumferential drive motor 11, a circumferential transmission component, and a circumferential moving frame 12. The circumferential transmission component includes a circumferential transmission gear ring and a circumferential transmission gear 13. The circumferential transmission gear ring includes two semicircular gear rings 14, which are respectively fixedly disposed on the inner sides of two semicircular encircling mounting parts 2. The two semicircular gear rings 14 form a complete circumferential transmission gear ring when clamped. The circumferential transmission gear 13 is disposed on the output shaft of the circumferential drive motor 11. The circumferential moving frame 12 is circumferentially movable on the semicircular gear rings 14, and the circumferential drive motor 11 is disposed on the circumferential moving frame 12.

[0046] Combination Figures 4-6 The axial drive mechanism includes an axial drive motor 15, an axial transmission assembly, and an axial moving frame 16. The axial drive motor 15 is fixedly mounted on the circumferential moving frame 12. The axial transmission assembly includes an axial transmission screw and an axial transmission screw nut. The axial transmission screw nut is fixedly connected to the axial moving frame 16, and the axis of the axial transmission screw nut is parallel to the axis of the circumferential transmission gear ring.

[0047] Combination Figures 4-6 The contour cutting assembly includes a cutting blade 17, a contour roller 18, a contour spring 19, and a contour mounting bracket 20. The cutting blade 17 is radially slidably mounted on the contour mounting bracket 20. One end of the contour mounting bracket 20 is slidably connected to the axial moving frame 16 via a sliding rod. The contour spring 19 is sleeved on the sliding rod, and both ends of the contour spring 19 abut against the axial moving frame 16 and the contour mounting bracket 20, respectively.

[0048] Combination Figures 4-6 The radial drive mechanism includes a radial drive motor 21 and a radial transmission assembly. The radial drive motor 21 is mounted on the contour mounting bracket 20. The radial transmission assembly includes a radial transmission rack and a radial transmission gear. The radial transmission rack is integrally formed with the cutting blade 17. The radial transmission gear is mounted on the output shaft of the radial drive motor 21.

[0049] Combination Figures 1-6 The method for controlling winter shoots and promoting flowering in the cultivation of Xianjinfeng litchi in this embodiment includes the following steps:

[0050] (1) Identify the litchi tree to be cut.

[0051] (2) Determine the appropriate cutting type for the litchi tree to be cut, including spiral girdling and ring cutting; the method for determining the cutting type is as follows:

[0052] If the litchi tree is growing vigorously, has a thick canopy, and is lightly pruned, the spiral ring-barking method is suitable.

[0053] If the lychee tree is of moderate growth, or is a fruit-bearing tree that only produces one autumn shoot after harvesting, or is an old lychee tree, the girdling method is suitable.

[0054] (3) Set the cutting type and cutting parameters on the winter shoot control and flower promotion cutting terminal; the cutting parameters for spiral girdling and ring cutting methods include cutting depth, cutting speed, cutting length, etc.

[0055] The cutting parameters for the spiral girdling method also include a girdling width of 0.2cm to 0.4cm, a number of turns of 1.2 to 1.8, a girdling spiral angle of 16 degrees to 19 degrees, and a pitch equal to the trunk diameter.

[0056] (4) Start the winter shoot control and flower promotion cutting terminal. The electric control system of the winter shoot control and flower promotion cutting terminal opens the embracing mechanism of the winter shoot control and flower promotion cutting terminal and places the embracing mechanism on the outside of the trunk to be cut. Then the electric control system controls the embracing mechanism to clamp the trunk to be cut.

[0057] The electric control system controls the cutting mechanism of the winter shoot flowering cutting terminal to perform the cutting operation: the radial drive mechanism drives the cutting blade 17 to move radially to approach the trunk to be cut until the cutting blade 17 is inserted into the trunk to a specified depth; at the same time, the circumferential drive mechanism drives the cutting blade 17 to move circumferentially, causing the cutting blade 17 to make a ring cut on the trunk bark; if the spiral girdling method is performed, the axial drive mechanism drives the cutting blade 17 to move axially, causing the cutting blade 17 to make a spiral cut on the trunk bark.

[0058] (5) After the cutting is completed, the electric control system controls the embracing mechanism to release the tree trunk that has been cut, and then moves the winter shoot-promoting flower cutting terminal away from the tree trunk that has been cut.

[0059] Furthermore, combined with Figures 1-3 In step (4), the opening and closing operation method of the encircling mechanism is as follows:

[0060] The opening and closing drive motor 8 drives the opening and closing transmission screw to rotate, which in turn drives the opening and closing transmission screw nut and the opening and closing moving frame 9 to move linearly. Then, the opening and closing transmission connecting rod 10 drives the two semi-circular ring mounting parts 2 to rotate outward in the opposite direction in a synchronized manner until the lychee tree to be cut can be placed between the two semi-circular ring mounting parts 2.

[0061] Place the two semi-circular ring-shaped mounting parts 2 on the outside of the lychee tree to be cut. Drive the opening and closing drive motor 8 to rotate the opening and closing transmission screw in the opposite direction. The opening and closing transmission connecting rod 10 drives the two semi-circular ring-shaped mounting parts 2 to rotate inward synchronously until the two semi-circular ring-shaped mounting parts 2 are just combined into a complete circular structure.

[0062] The electric control system controls all the surrounding clamping components to perform the clamping operation. The clamping cylinder 7 drives the clamping wheel 4 and the spring mounting bracket 5 to approach the tree trunk, and then the clamping wheel 4 presses against the outside of the tree trunk to achieve clamping. During this process, when the clamping wheel 4 just contacts the surface of the tree trunk, the clamping cylinder 7 continues to drive a set distance, causing the clamping spring 6 to compress and deform, achieving adaptive elastic clamping. This will not forcefully squeeze the tree trunk and cause additional damage to the tree trunk, but will also adapt to the outer contour of the tree trunk to achieve more precise clamping.

[0063] Furthermore, combined with Figures 4-6 In step (4), the specific cutting operation of the cutting mechanism is as follows:

[0064] The electric control system controls the radial drive motor 21 of the radial drive mechanism to drive the radial transmission gear to rotate, and then the radial transmission rack carries the cutting blade 17 to move radially closer to the tree trunk until the cutting blade 17 is inserted into the tree trunk to a specified depth.

[0065] Meanwhile, the circumferential drive motor 11 of the circumferential drive mechanism drives the circumferential transmission gear 13 to rotate, while the circumferential transmission gear ring that cooperates with the circumferential transmission gear 13 remains stationary. This circumferential transmission gear ring includes two semi-circular gear rings 14, which are respectively fixed inside the two semi-circular encircling mounting parts 2. The two semi-circular gear rings 14 at this time form a complete circumferential transmission gear ring. The circumferential transmission gear 13 moves circumferentially along the circumferential transmission gear ring, and then carries the contour cutting assembly, the axial drive mechanism, and the radial drive mechanism to perform synchronous circumferential movement. The radial drive mechanism is set on the contour cutting assembly, the contour cutting assembly is set on the axial drive mechanism, and the axial drive mechanism is set on the circumferential drive mechanism. While moving circumferentially, the cutting blade 17 performs a ring cut on the bark of the tree trunk.

[0066] Furthermore, when performing the spiral girdling method, while moving in a circular motion, the axial drive motor 15 of the axial drive mechanism drives the contour cutting component to move axially. At this time, the motion trajectory of the cutting blade 17, which is superimposed with the circular motion, is spiral, thereby performing spiral cutting on the bark of the tree trunk.

[0067] Furthermore, the cutting mechanism is located inside the embracing mechanism. When the embracing mechanism is clamping the tree trunk to be cut, the contour cutting component gradually approaches the tree trunk. When the contour roller 18 just contacts the tree trunk surface, the clamping operation is not yet complete. The embracing mechanism continues to close, causing the contour spring 19 to compress and deform until the clamping operation is completed. At this time, the contour spring 19 elastically presses the contour roller 18 against the tree trunk surface, and the relative position of the contour roller 18 and the adjusted cutting blade 17 remains unchanged. When the cutting blade 17 and the contour roller 18 move in a circle, the contour roller 18 serves as the basic support point for the cutting blade 17 and moves contour-following along the surface of the tree trunk, ensuring that the cutting depth of the cutting blade 17 remains constant, further improving the cutting quality and obtaining better shoot control. Example 2

[0068] Combination Figure 7 Unlike Embodiment 1, in this embodiment, the winter shoot control and flowering promotion cutting terminal is mounted on a robotic arm 22, which is mounted on an electric walking mechanism 23. Combined with a vision positioning system, this enables highly automated cutting operations. Specifically, the robotic arm 22, the electric walking mechanism 23, and the vision positioning system can refer to existing technologies.

[0069] The above are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A method for controlling winter shoots and promoting flowers by cutting for Xianjin Feng Litchi planting, characterized in that, The method comprises the following steps: (1) determining a litchi tree to be cut; (2) determining a suitable cutting type for the litchi tree to be cut, the cutting type comprising a spiral ring stripping mode and a ring cutting mode; (3) setting the cutting type and its cutting parameters on a winter shoot control and flower promotion cutting terminal; The winter shoot control and flower promotion cutting terminal comprises a ring embracing mechanism for automatically embracing the litchi tree, a cutting mechanism for automatically cutting the litchi tree, and an electric control system for controlling the ring embracing mechanism and the cutting mechanism to work; The ring embracing mechanism comprises a ring embracing support, two semicircular ring embracing mounting members, ring embracing clamping assemblies, and an opening and closing driving mechanism, the two semicircular ring embracing mounting members are hingedly connected at one end to the same rotation center of the ring embracing support, the ring embracing clamping assemblies are arranged in the circumferential direction in the clamping state, each ring embracing clamping assembly comprises a clamping mounting frame, a clamping wheel, a spring mounting frame, a clamping spring, and a clamping electric cylinder, and the opening and closing driving mechanism comprises an opening and closing driving motor, an opening and closing transmission assembly, and an opening and closing moving frame, the opening and closing driving motor is arranged on the ring embracing support, and the opening and closing transmission assembly comprises an opening and closing transmission screw rod, an opening and closing transmission screw rod nut, and an opening and closing transmission connecting rod; The cutting mechanism comprises a profiling cutting assembly, a circumferential driving mechanism for driving the profiling cutting assembly to move in the circumferential direction, an axial driving mechanism for driving the profiling cutting assembly to move in the axial direction, and a radial driving mechanism for driving the profiling cutting assembly to move in the radial direction, the circumferential driving mechanism comprises a circumferential driving motor, a circumferential transmission assembly, and a circumferential moving frame, the circumferential transmission assembly comprises a circumferential transmission gear ring and a circumferential transmission gear, the circumferential transmission gear ring comprises two semicircular gear rings, the two semicircular gear rings are fixedly arranged on the inner sides of the two semicircular ring embracing mounting members respectively, and the two semicircular gear rings form a complete circumferential transmission gear ring in the clamping state; The axial driving mechanism comprises an axial driving motor, an axial transmission assembly, and an axial moving frame, the axial driving motor is fixedly arranged on the circumferential moving frame, the axial transmission assembly comprises an axial transmission screw rod and an axial transmission screw rod nut, and the axial transmission screw rod nut is fixedly connected with the axial moving frame, and the axis of the axial transmission screw rod nut is parallel to the axis of the circumferential transmission gear ring; The profiling cutting assembly comprises a cutting knife, a profiling roller, a profiling spring, and a profiling mounting frame, the cutting knife is radially slidably arranged on the profiling mounting frame, one end of the profiling mounting frame is slidably connected to the axial moving frame through a sliding rod, and the profiling spring is sleeved on the sliding rod, and the two ends of the profiling spring are abutted against the axial moving frame and the profiling mounting frame respectively; The radial driving mechanism comprises a radial driving motor and a radial transmission assembly, the radial driving motor is arranged on the profiling mounting frame, the radial transmission assembly comprises a radial transmission rack and a radial transmission gear, the radial transmission rack is integrally formed with the cutting knife, and the radial transmission gear is arranged on the output shaft of the radial driving motor. (4) Start the winter shoot control and flower promotion cutting terminal, control the opening of the winter shoot control and flower promotion cutting terminal by the electric control system of the winter shoot control and flower promotion cutting terminal, and place the embracing mechanism outside the tree trunk to be cut, and then control the embracing mechanism to embrace the tree trunk to be cut by the electric control system; The electric control system controls the cutting mechanism of the winter shoot control and flower promotion cutting terminal to perform cutting operation: the cutting knife is driven to move radially by the radial drive mechanism to approach the tree trunk to be cut until the cutting knife is inserted into the tree trunk to a specified depth; at the same time, the cutting knife is driven to move circumferentially by the circumferential drive mechanism to cut the tree bark in a ring shape; if the spiral ring stripping mode is performed, the cutting knife is driven to move axially by the axial drive mechanism to cut the tree bark in a spiral shape; (5) After cutting is completed, the electric control system controls the embracing mechanism to loosen the cut tree trunk, and then moves the winter shoot control and flower promotion cutting terminal away from the cut tree trunk.

2. The method for controlling winter shoots and promoting flowering by cutting according to claim 1, wherein In step (2), the cutting type judgment method is: If the growth of the litchi tree is strong, the leaf curtain layer is thick, and the pruning degree is light, the spiral ring stripping mode is suitable; If the growth of the litchi tree is moderate, the fruiting tree only sprouts once in autumn after fruiting, or the old litchi tree, the ring cutting mode is suitable.

3. The method for controlling winter shoots and promoting flowering by cutting according to claim 1, wherein In step (3), the cutting parameters of the spiral ring stripping mode and the ring cutting mode include cutting depth, cutting moving speed, and cutting length.

4. The method for controlling winter shoots and promoting flowering by cutting according to claim 1, wherein In step (3), the cutting parameters of the spiral ring stripping mode further include a stripping opening width of 0.2cm~0.4cm, a number of turns of 1.2 turns~1.8 turns, a ring stripping spiral angle of 16 degrees~19 degrees, and a pitch equal to the diameter of the tree trunk.

5. The method for controlling winter shoots and promoting flowering by cutting according to claim 1, wherein In step (4), the opening and closing operation method of the embracing mechanism is: The opening and closing transmission screw rod is driven to rotate by the opening and closing drive motor, the opening and closing transmission screw nut and the opening and closing moving frame are driven to move linearly, and then the two half circular embracing installation pieces are synchronously and reversely turned outward by the opening and closing transmission connecting rod until the two half circular embracing installation pieces can be placed into the litchi tree to be cut; The two half circular embracing installation pieces are placed outside the litchi tree to be cut, the opening and closing transmission screw rod is reversely rotated by the opening and closing drive motor, and the two half circular embracing installation pieces are synchronously and inwardly turned toward each other by the opening and closing transmission connecting rod until the two half circular embracing installation pieces just form a complete circular structure.

6. The method for controlling winter shoots and promoting flowering cutting according to claim 5, wherein, The electric control system controls all embracing clamping assemblies to perform clamping operation, the clamping wheel and the spring mounting bracket are driven to approach the tree trunk by the clamping electric cylinder, and then the clamping wheel is pressed on the tree trunk to realize clamping; in this process, when the clamping wheel just contacts the surface of the tree trunk, the clamping electric cylinder continues to drive for a set distance to cause the clamping spring to compress and deform, realizing self-adaptive elastic compression.

7. The method for controlling winter shoots and promoting flowering by cutting according to claim 1, wherein In step (4), the specific cutting operation of the cutting mechanism is: The radial drive motor of the radial drive mechanism is driven to rotate by the electric control system, and then the radial transmission gear is driven to move radially by the radial transmission rack to approach the tree trunk until the cutting knife is inserted into the tree trunk to a specified depth.

8. The method for controlling winter shoots and promoting flowering cutting according to claim 7, wherein, The circumferential drive motor of the circumferential drive mechanism drives the circumferential transmission gear to rotate, and the circumferential transmission ring matched with the circumferential transmission gear remains stationary; the circumferential transmission gear moves along the circumferential transmission ring, and then the profiling cutting assembly, the axial drive mechanism and the radial drive mechanism are synchronously moved; while moving circumferentially, the bark of the tree trunk is circularly cut by the cutting knife.

9. The method for controlling winter shoots and promoting flowering cutting according to claim 8, wherein, If the spiral ring stripping mode is implemented, while moving circumferentially, the profiling cutting assembly is driven by the axial drive motor of the axial drive mechanism to move axially, and the bark of the tree trunk is spirally cut.

10. The method for controlling winter shoots and promoting flowering cutting according to claim 8, wherein, The cutting mechanism is arranged on the inner side of the embracing mechanism, and the profiling cutting assembly gradually approaches the tree trunk to be cut when the embracing mechanism directly clamps the tree trunk to be cut; when the profiling roller just contacts the surface of the tree trunk, the clamping operation is not completed, the embracing mechanism continues to close, the profiling spring is compressed and deformed, and the clamping operation is completed; at this time, the profiling spring elastically presses the profiling roller against the surface of the tree trunk, and the relative position of the profiling roller and the adjusted cutting knife remains unchanged; when the cutting knife and the profiling roller move circumferentially, the profiling roller serves as the basic support point of the cutting knife and moves along the surface of the tree trunk, so that the cutting depth of the cutting knife is constant.

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