A V-shaped double-cut fully automatic rubber tapping machine

Abstract

The present invention discloses a V-shaped double-sected fully automatic rubber tapping machine, comprising a first tapping knife, a second tapping knife, and a driving mechanism, wherein the driving mechanism drives the first tapping knife to perform a reciprocating motion close to and away from the rubber tree trunk, the first tapping knife being used to cut the bark of the rubber tree, the driving mechanism drives the second tapping knife to perform a lifting and forward and backward motion, the second tapping knife being used to cut the connection between the rubber tree trunk and the bark, the first tapping knife and the second tapping knife forming a closed profile. The present invention provides a V-shaped double-sected fully automatic rubber tapping machine, which can stop instantly after cutting the bark to a predetermined depth, thereby reducing damage to the rubber tree, and can automatically move downward a certain distance after tapping to perform the next tapping operation, thereby achieving continuous tapping. An air stimulation device is used during tapping to increase the rubber yield of the rubber tree, and the collection of old rubber lines can also be recovered, thereby improving economic efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of rubber tapping, in particular to a V-shaped double-sected line fully automatic rubber tapping machine. Background Art

[0002] A rubber tapping machine is a mechanical device used to harvest natural rubber. Compared to traditional manual tapping, it reduces labor costs and improves efficiency. Existing rubber tapping machines typically use a cutting blade that cuts along the tree trunk in a spiral trajectory. However, this method significantly damages the bark, shortening the lifespan of the rubber tree and the number of years of rubber harvesting, resulting in low economic returns. Summary of the Invention

[0003] In view of the above-mentioned prior art, the present invention provides a V-shaped double-sected fully automatic rubber tapping machine to reduce damage to rubber trees and improve economic benefits.

[0004] To achieve the above-mentioned purpose, the technical solution of the embodiment of the present invention is implemented as follows:

[0005] A V-shaped double-secant fully automatic rubber tapping machine comprises a first tapping knife, a second tapping knife and a driving mechanism, wherein the driving mechanism drives the first tapping knife to perform a reciprocating motion toward and away from a rubber tree trunk, the first tapping knife being used for cutting the bark of the rubber tree, the driving mechanism drives the second tapping knife to perform a lifting motion, the second tapping knife being used for cutting the connection between the rubber tree trunk and the bark, and the first tapping knife and the second tapping knife forming a closed contour.

[0006] Furthermore, the first tapping knife is V-shaped with both sides protruding upward, and the blade of the first tapping knife is located at the end facing the rubber tree. The second tapping knife is an L-shaped structure with a downwardly bent front end, and the vertical cross-section of one end of the L-shaped structure that bends downward is a V-shape that matches the first tapping knife, and the blade of the second tapping knife is located at the bottom of the downwardly bent portion of the L-shaped structure.

[0007] Furthermore, the driving mechanism is arranged on the tapping assembly frame, and the driving mechanism includes a motor, a first transmission part and a second transmission part. The motor drives the first tapping knife to move through the first transmission part, and the motor drives the second tapping knife to move through the second transmission part.

[0008] Furthermore, the first transmission part includes a first gear, a second gear, a return spring, a first cam and a first connecting rod. The first tapping knife is fixedly connected to the first connecting rod, and the first connecting rod is slidably connected to the tapping assembly frame. The return spring is used to push the first connecting rod to move backward. The motor drives the first gear to rotate, the first gear is engaged with the second gear, the second gear is connected to the cam, and the cam cooperates with the end of the first connecting rod. When the cam rotates, it pushes the first connecting rod and the second tapping knife to move forward.

[0009] Furthermore, the second transmission part includes a third gear, a second cam, a rectangular frame, a lifting platform and a second connecting rod. The lifting platform is vertically slidably connected to the tapping assembly frame, and the second connecting rod is horizontally slidably connected to the lifting platform. The motor drives the third gear to rotate, and the third gear is connected to the second cam. The second cam is located in the rectangular frame, and the rectangular frame is connected to the second connecting rod. The second connecting rod is slidably connected to the second tapping knife. The second connecting rod is provided with a spring connected to the second tapping knife. When the second cam rotates, it drives the rectangular frame to move in a rectangular trajectory, thereby driving the second tapping knife to perform a circular motion of down, back, up and forward along the rectangular trajectory. A brush is provided under the second tapping knife. The brush is used to scrape off the old rubber lines on the rubber tree on the second tapping knife, and an old rubber line collection container is provided under the brush.

[0010] Furthermore, a pressure sensor is provided between the first connecting rod and the first tapping knife, and the pressure sensor is connected to the controller signal. The first connecting rod is provided with an instantaneous stop depth limit mechanism, and the instantaneous stop depth limit mechanism is connected to the controller signal.

[0011] Furthermore, the instantaneous stop depth limiting mechanism includes a pressurizing box, an electromagnetic control valve and a hydraulic telescopic rod. The pressurizing box, the electromagnetic control valve and the hydraulic telescopic rod are connected in sequence, and the electromagnetic control valve is connected to the controller signal.

[0012] Furthermore, the rubber tapping assembly frame includes a movable frame, a screw rod, a nut and a fourth gear. The movable frame is rotatably connected to the nut, the nut is connected to the fourth gear, both ends of the screw rod are rotatably connected to a fixed frame fixed on a rubber tree, the screw rod cooperates with the nut, and the motor intermittently drives the fourth gear to rotate.

[0013] Furthermore, the motor drives the sector teeth to rotate, and the sector teeth drive the fourth gear to rotate.

[0014] Furthermore, it also includes an air stimulation device, which includes an air tank, a first flow control valve, an air bag, a second flow control valve and an air chamber. The air tank, the first flow control valve, the air bag, the second flow control valve and the air chamber are connected in sequence, and the air chamber is plugged into the rubber tree.

[0015] The beneficial effects of the present invention are as follows: a driving mechanism drives a first rubber tapping knife to move back and forth during operation to cut the rubber bark, so that the bottom of the rubber bark is cut. Then, driven by the driving mechanism, a second rubber tapping knife moves downward, cutting off the connection between the rubber bark and the trunk, and the rubber tree after cutting flows out rubber liquid, thereby collecting it. The present invention can pre-cut a vertical drainage groove below the cutting groove, and the rubber liquid flowing out is left from the drainage groove and is convenient to flow into the rubber bowl. This reduces damage to the rubber tree and improves economic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of a V-shaped double-sected fully automatic rubber tapping machine in an embodiment of the present application;

[0017] Figure 2 This is a partial structural diagram of a V-shaped double-secant fully automatic rubber tapping machine in an embodiment of the present application;

[0018] Figure 3 Schematic diagram of the structure of the first transmission part and the first rubber tapping knife in the embodiment of the present application;

[0019] Figure 4 Schematic diagram of the structure of the second transmission part and the second rubber tapping knife in the embodiment of the present application;

[0020] Figure 5 This is a structural diagram of the rubber tapping assembly frame in the embodiment of the present application;

[0021] Figure 6 This is a schematic structural diagram of the second rubber tapping knife in the embodiment of the present application;

[0022] Figure 7 Schematic diagram of the cross-sectional structure of the first tapping knife and the second tapping knife in the embodiment of the present application;

[0023] Description of Figure Numbers:

[0024] 1 First tapping knife, 2 Second tapping knife, 3 Blade, 4 Motor, 5 First gear, 6 Second gear, 7 Return spring, 8 Cam, 9 Third gear, 10 Second cam, 11 Rectangular frame, 12 Second connecting rod, 13 Bristles, 14 Pressure sensor, 15 Pressurization box, 16 Solenoid control valve, 17 Hydraulic telescopic rod, 18 Moving frame, 19 Screw, 20 Nut, 21 Fourth gear, 22 Sector teeth, 23 Air tank, 24 First flow control valve, 25 Air bag, 26 Second flow control valve, 27 Air chamber, 28 Old rubber line collection container, 29 First connecting rod, 30 Telescopic spring, 31 Lifting platform. DETAILED DESCRIPTION

[0025] The technical solution of the present invention is further elaborated in detail below in conjunction with the drawings and specific embodiments of the specification. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. In the following description, reference is made to "some embodiments", which describes a subset of all possible embodiments, but it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments, and can be combined with each other without conflict.

[0026] It should also be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0027] Example 1

[0028] Refer to the attached Figure 1-7, the application provides a kind of V-shaped double-cut fully automatic rubber tapping machine, comprise the first rubber tapping knife 1, the second rubber tapping knife 2 and driving mechanism, described driving mechanism drives the first rubber tapping knife 1 to do the reciprocating motion close to and away from described rubber trunk, described the first rubber tapping knife 1 is used for cutting the bark of rubber tree, by bark and the connection cutting between bark, described driving mechanism drives the second rubber tapping knife 2 to do lifting motion, described the second rubber tapping knife 2 is used for cutting the connection part of rubber trunk and bark, makes bark break away from rubber tree, described the first rubber tapping knife 1 and the second rubber tapping knife 2 surround the outline of closing.When tapping rubber, first utilize artificially to cut out the cutting groove identical with the lower cutting knife profile on rubber bark, preferably the cutting groove of V shape, then automatic rubber tapping machine is installed to suitable position.Driving mechanism drives the first rubber tapping knife 1 to move back and forth and cut rubber bark when working, makes the rubber bark below V-shaped cutting groove be cut. Then under the drive of driving mechanism, second rubber tapping knife 2 moves downward, and the connection part of rubber bark and trunk is cut off, and the rubber tree after cutting flows out rubber liquid, thereby collects.Preferably, vertical drainage groove is cut in advance below cutting groove, and the rubber liquid flowing out is left from drainage groove, is convenient to flow into glue bowl.Reduced the damage to rubber tree, improve economic efficiency.

[0029] Preferably, the present invention is used in conjunction with ethylene gas spikes when collecting rubber liquid, and adopts a combination of mechanical structure, sensor technology and automatic control to realize automatic cutting of the bark by the first tapping knife and the second tapping knife, and has the functions of autonomous regulation of ethylene gas spike frequency, precise regulation of rubber tapping depth, and recovery of old rubber lines, thereby ensuring rubber tapping accuracy and output and improving efficiency.

[0030] Specifically, the first rubber tapping knife 1 is a V-shaped structure with upward projections on both sides. The blade 3 of the first rubber tapping knife 1 is located at the end toward the rubber tree. The second rubber tapping knife 2 is an L-shaped structure with a downward bend in the front end, and the vertical section of one end of the L-shaped structure is a V-shaped structure that matches the first rubber tapping knife 1. The blade 3 of the second rubber tapping knife 2 is located at the bottom of the downward bend of the L-shaped structure. The V-shaped first rubber tapping knife 1 cuts through the rubber bark, and the V-shaped rubber tapping section is formed, which is conducive to the rubber liquid gathering in the middle and promotes the collection of the rubber liquid. The V-shaped structure of the first rubber tapping knife 1 is provided with upward projections on both sides, and the raised position is also provided with a sharp blade 3. The blade 3 at the raised position is utilized to tap the rubber tree. When the first rubber tapping knife 1 moves back and forth, the rubber bark is cut out into a V-shaped rubber cutting mouth. When the second rubber tapping knife 2 moves up and down, the connection between the rubber trunk and the bark is cut off, thereby increasing the rubber yield. The V-shaped double-sected rubber tapping method of the present invention has the following advantages: 1. It extends the effective cutting line length and the area of ​​latex duct rupture during micro-cutting, improving operation efficiency and increasing rubber tree yield. 2. The waterline can be positioned in the middle of the V-shaped cut, allowing glue from both sides of the cutting line to more easily collect in the rubber collection bowl below the waterline, preventing glue from leaking out and facilitating glue collection.

[0031] Specifically, the drive mechanism is mounted on the tapping assembly frame and includes a motor 4, a first transmission unit, and a second transmission unit. The motor 4 drives the first tapping knife 1 through the first transmission unit, and the motor 4 drives the second tapping knife 2 through the second transmission unit. When the motor 4 rotates, the first tapping knife 1 and the second tapping knife 2 are driven by the two transmission units, respectively. Because the same drive source is used, the coordinated movement of the first tapping knife 1 and the second tapping knife 2 is easily controlled.

[0032] Specifically, the first transmission part includes a first gear 5, a second gear 6, a return spring 7, a first cam 8 and a first connecting rod 29. The first rubber tapping knife is fixedly connected to the first connecting rod 29, and the first connecting rod 29 is slidably connected to the rubber tapping assembly frame. The return spring 7 is used to push the first connecting rod 29 to move backward. The motor 4 drives the first gear 5 to rotate. The first gear 5 is engaged with the second gear 6. The second gear 6 is connected to the cam 8. The cam 8 cooperates with the end of the first connecting rod 29. When the cam 8 rotates, it pushes the first connecting rod 29 and the second rubber tapping knife 2 to move forward. The motor 4 is directly connected to the first gear 5, or drives the first gear 5 to rotate through other gears. The first gear 5 is engaged with the second gear 6. When the second gear 6 rotates, it drives the cam 8 to rotate, and the cam 8 is used to push the first rubber tapping knife 1 to move forward. When the cam 8 is not pushed, the return spring 7 pushes the first connecting rod 29 and the first rubber tapping knife 1 to move backward, so that the first connecting rod 29 is always close to the cam 8, and ensures that the first rubber tapping knife 1 can complete the action of withdrawing the knife.

[0033] Specifically, the second transmission part includes a third gear 9, a second cam 10, a rectangular frame 11, a lifting platform 31 and a second connecting rod 12. The lifting platform 31 is vertically slidably connected to the rubber tapping assembly frame, and the second connecting rod is horizontally slidably connected to the lifting platform 31. Preferably, the lifting platform 31 is cross-shaped, the vertical axis of the lifting platform 31 is vertically slidably connected to the rubber tapping assembly frame, and the horizontal axis of the lifting platform 31 is horizontally slidably connected to the second connecting rod. The motor 4 drives the third gear 9 to rotate, the third gear 9 is connected to the second cam 10, the second cam 10 is located in the rectangular frame 11, the rectangular frame 11 is connected to the second connecting rod 12, the second connecting rod 12 is slidably connected to the second tapping knife 2, and the second connecting rod 12 is provided with a telescopic spring 30 connected to the second tapping knife 2. When the second cam 10 rotates, it drives the rectangular frame 11 to move in a rectangular trajectory. A brush 13 is provided under the second tapping knife 2. The motor 4 is directly connected to the third gear 9, or drives the third gear 9 through other gears. When the third gear 9 rotates, the third gear 9 drives the second cam 10 to rotate. When the raised portion of the second cam 10 rotates to the top, the upper frame of the rectangular frame 11 is pushed to move upward. Similarly, when the raised portion of the second cam 10 rotates to the front, bottom and back, the front frame, lower frame and rear frame of the rectangular frame 11 are pushed forward, downward and backward respectively. Since the lifting platform 31 is vertically slidably connected to the tapping assembly frame, the connecting rod is horizontally slidably connected to the lifting platform 31, it can ensure that the rectangular frame 11 drives the connecting rod to move synchronously when it moves, thereby driving the second tapping knife 2 to move forward, downward, backward and upward, that is, lifting and back and forth movement. Described lifting platform 31 is cross-shaped, improves the motion stability of connecting rod and the second rubber tapping knife 2, the second rubber tapping knife 2 moves downward and can both cut rubber trees, can also shovel into old rubber line, then when moving backward, old rubber line is taken out, bristle 13 is fixed between the first rubber tapping knife 1 and the second rubber tapping knife 2, when completing tapping and moving backward, bristle 13 contacts the front end of the second rubber tapping knife 2, when the second rubber tapping knife 2 moves upward, the cut bark of the adhesion of bristle 13 is scraped and cleaned, when ensuring that the next cut rubber tapping operation is unobstructed, and is convenient to the collection and recovery of old rubber line. Similarly, when the first rubber tapping knife 1 moves backward, the cut bark of adhesion can also be scraped and cleaned by bristle 13, when ensuring that the next cut rubber tapping operation is unobstructed, and is convenient to the collection and recovery of old rubber line. The below of bristle 13 is provided with old rubber line collecting container, and the old rubber line scraped off falls in the old rubber line collecting container. The second connecting rod 12 is slidably connected to the second tapping knife 2, and a telescopic spring 30 connected to the second tapping knife 2 is provided on the second connecting rod 12 to prevent the second tapping knife 2 from being resisted by the rubber tree when moving to the end of the stroke, thereby protecting the second tapping knife and the rubber tree.

[0034] Specifically, a pressure sensor 14 is provided between the first connecting rod 29 and the first rubber tapping knife 1. The pressure sensor 14 is connected to a controller signal. The first connecting rod 29 is also provided with an instantaneous stop depth limit mechanism, which is connected to the controller signal. The pressure sensor 14 can monitor the cutting force of the first rubber tapping knife 1. Based on the structural layering characteristics of the natural rubber bark, the hardness of each layer, and the different physical and mechanical characteristics of the cutting force, a precision mechanical sensor is used to monitor the blade resistance value during the cutting process to determine whether the cutting depth has been reached. When the cutting depth is reached, the instantaneous stop depth limit mechanism acts, causing the blade to instantly lose its driving force and stop cutting forward. As the cam 8 continues to rotate and the elastic force of the spring acts, the cutting blade is withdrawn from the trunk and returns to its initial position.

[0035] Specifically, the instantaneous stop depth limit mechanism includes a pressurizing tank 15, an electromagnetic control valve 16, and a hydraulic telescopic rod 17. The pressurizing tank 15, the electromagnetic control valve 16, and the hydraulic telescopic rod 17 are sequentially connected, and the electromagnetic control valve 16 is connected to a controller signal. The pressurizing tank 15 is pre-loaded with liquid at a certain pressure. The liquid is supplied to the telescopic rod cavity of the hydraulic telescopic rod 17 through the electromagnetic control valve 16. When the electromagnetic control valve 16 is closed, the liquid is blocked in the hydraulic telescopic rod 17, preventing the hydraulic telescopic rod 17 from extending or retracting. When the cutting force of the first tapping knife 1 reaches a preset value, the controller controls the electromagnetic control valve 16 to open. At this time, the liquid in the hydraulic telescopic rod 17 can flow back into the pressurizing tank 15, and the supporting force provided by the hydraulic telescopic rod 17 is rapidly reduced, thereby achieving the effect of instantaneously stopping cutting. After the first tapping knife 1 releases the bark, the pressure sensor 14 detects that the value of the blade drops to zero. At this time, the controller controls the electromagnetic control valve 16 to close, and the hydraulic telescopic rod 17 returns to its initial state. Optionally, the hydraulic telescopic rod 17 is located at the end of the first connecting rod 29, and the pressure sensor is provided between the first tapping knife and the hydraulic telescopic rod.

[0036] Specifically, the rubber tapping assembly includes a mobile frame 18, a screw rod 19, a nut 20, and a fourth gear 21. The mobile frame 18 is rotatably connected to the nut 20, which is connected to the fourth gear 21. Both ends of the screw rod 19 are rotatably connected to a fixed frame fixed to the rubber tree. The screw rod 19 cooperates with the nut 20, and the motor 4 intermittently drives the fourth gear 21 to rotate. The motor 4, a first transmission unit, and a second transmission unit can be mounted on the mobile frame 18. The mobile frame 18 moves downward along the tree trunk in cooperation with the screw rod 19 and the nut 20. Specifically, when the motor 4 rotates, it intermittently drives the fourth gear 21 to rotate, thereby also driving the screw rod 19 to rotate intermittently. Since the screw rod 19 cooperates with the nut 20, it can drive the mobile frame 18 to move downward intermittently. During the rubber tapping process, it can move downward a certain distance to perform the next tapping operation, achieving the purpose of continuous rubber tapping. The distance the screw rod drives the mobile frame to move is the thickness of the rubber bark consumed during tapping.

[0037] Specifically, the motor 4 drives the sector teeth 22 to rotate, and the sector teeth 22 drives the fourth gear 21 to rotate. The motor 4 is directly connected to the sector teeth 22, or the motor 4 drives the sector teeth 22 to rotate through another gear set. When the sector teeth 22 rotate, they intermittently drive the fourth gear 21 to rotate, thereby achieving intermittent transmission.

[0038] Specifically, the invention also includes a gas stimulation device, which includes a gas storage tank 23, a first flow control valve 24, an air bag 25, a second flow control valve 26 and an air chamber 27. The gas storage tank 23, the first flow control valve 24, the air bag 25, the second flow control valve 26 and the air chamber 27 are connected in sequence, and the air chamber 27 is plugged into the rubber tree. Ethylene gas is stored in the gas storage tank 23, and part of the ethylene gas is released into the air bag 25 through the first flow control valve 24. The ethylene gas in the air bag 25 has a certain pressure, and then the ethylene gas is released into the air chamber 27 through the second flow control valve 26. The gas in the air chamber 27 is slowly released into the rubber tree. The second flow control valve 26 can control the air bag 25 to supply air to the air chamber 27 at a fixed time and in a fixed quantity, thereby accurately controlling the amount of stimulant used on the bark and the operation schedule, avoiding excessive stimulation causing bark damage or too little stimulation leading to reduced production. The first flow control valve 24 can control the air storage tank 23 to inflate the air bag 25 in a timely and quantitative manner, eliminating the need for manpower to frequently inflate the air bag 25, thereby reducing labor intensity and improving work efficiency.

[0039] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. The scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A V-shaped double-secant fully automatic rubber tapping machine, characterized in that: The invention comprises a first tapping knife, a second tapping knife and a driving mechanism, wherein the driving mechanism drives the first tapping knife to perform a reciprocating motion close to and away from a rubber tree trunk, the first tapping knife is used to cut the bark of the rubber tree, the driving mechanism drives the second tapping knife to perform a lifting motion, the second tapping knife is used to cut the connection between the rubber tree trunk and the bark, and the first tapping knife and the second tapping knife form a closed outline; the driving mechanism comprises a motor, a first transmission part and a second transmission part, the motor drives the first tapping knife to move through the first transmission part, and the motor drives the second tapping knife to move through the second transmission part; when the motor rotates, the first and second transmission parts are connected. The first tapping knife and the second tapping knife are driven to move respectively, and the first tapping knife and the second tapping knife are controlled to move in coordination; when working, the driving mechanism drives the first tapping knife to move back and forth to cut the rubber bark, and then the second tapping knife moves downward under the drive of the driving mechanism to cut off the connection between the rubber bark and the trunk; the first tapping knife is V-shaped with both sides protruding upward, and the blade of the first tapping knife is located at the end facing the rubber tree; the second tapping knife is L-shaped with the front end bent downward, and the vertical section of one end of the L-shaped structure bent downward matches the first tapping knife, and the blade of the second tapping knife is located at the bottom of the downward bent part of the L-shaped structure.

2. A V-shaped double-secant fully automatic rubber tapping machine according to claim 1, characterized in that, The driving mechanism is arranged on the rubber tapping assembly frame.

3. A V-shaped double-secant fully automatic rubber tapping machine according to claim 2, characterized in that, The first transmission part includes a first gear, a second gear, a return spring, a first cam and a first connecting rod. The first tapping knife is fixedly connected to the first connecting rod, and the first connecting rod is slidably connected to the tapping assembly frame. The return spring is used to push the first connecting rod to move backward. The motor drives the first gear to rotate, the first gear is engaged with the second gear, the second gear is connected to the first cam, and the first cam is matched with the end of the first connecting rod. When the first cam rotates, it pushes the first connecting rod and the second tapping knife to move forward.

4. A V-shaped double-secant fully automatic rubber tapping machine according to claim 2, characterized in that, The second transmission part includes a third gear, a second cam, a rectangular frame, a lifting platform and a second connecting rod. The lifting platform is vertically slidably connected to the tapping assembly frame, and the second connecting rod is horizontally slidably connected to the lifting platform. The motor drives the third gear to rotate, and the third gear is connected to the second cam. The second cam is located in the rectangular frame, and the rectangular frame is connected to the second connecting rod. The second connecting rod is slidably connected to the second tapping knife. The second connecting rod is provided with a spring connected to the second tapping knife. When the second cam rotates, it drives the rectangular frame to move in a rectangular trajectory, thereby driving the second tapping knife to perform a cyclic motion of down, back, up and forward along the rectangular trajectory. A brush is provided under the second tapping knife. The bristles are used to scrape off the old rubber lines on the rubber tree on the second tapping knife, and an old rubber line collection container is provided under the brush.

5. A V-shaped double-secant fully automatic rubber tapping machine according to claim 3, characterized in that, A pressure sensor is provided between the first connecting rod and the first tapping knife, and the pressure sensor is connected to the controller signal. The first connecting rod is provided with an instantaneous stop depth limit mechanism, and the instantaneous stop depth limit mechanism is connected to the controller signal.

6. A V-shaped double-secant fully automatic rubber tapping machine according to claim 5, characterized in that, The instantaneous stop depth limiting mechanism includes a pressurizing box, an electromagnetic control valve and a hydraulic telescopic rod. The pressurizing box, the electromagnetic control valve and the hydraulic telescopic rod are connected in sequence, and the electromagnetic control valve is connected to the controller signal.

7. A V-shaped double-secant fully automatic rubber tapping machine according to claim 2, characterized in that, The rubber tapping assembly frame includes a movable frame, a screw rod, a nut and a fourth gear. The movable frame is rotatably connected to the nut, the nut is connected to the fourth gear, both ends of the screw rod are rotatably connected to a fixed frame fixed on a rubber tree, the screw rod cooperates with the nut, and the motor intermittently drives the fourth gear to rotate.

8. A V-shaped double-secant fully automatic rubber tapping machine according to claim 7, characterized in that, The motor drives the sector teeth to rotate, and the sector teeth drives the fourth gear to rotate.

9. A V-shaped double-secant fully automatic rubber tapping machine according to claim 1, characterized in that, It also includes an air stimulation device, which includes an air storage tank, a first flow control valve, an air bag, a second flow control valve and an air chamber. The air storage tank, the first flow control valve, the air bag, the second flow control valve and the air chamber are connected in sequence, and the air chamber is plugged into the rubber tree.

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