A tangential rubber tapping machine and method

Abstract

The present invention discloses a tangent-type rubber tapping machine and method, comprising a rubber tapping knife, a linear drive mechanism and an air piercing device, wherein the linear drive mechanism is arranged at the rubber tapping position of a rubber tree, the linear drive mechanism drives the rubber tapping knife to move along a straight line direction inclined to a horizontal plane, the rubber tapping knife cuts the rubber bark during the movement, and the air piercing device is used to release stimulating gas to promote rubber production to the rubber tree. The present invention is to provide a tangent-type rubber tapping machine and method, wherein the linear drive mechanism drives the rubber tapping knife to move along a straight line direction inclined to a horizontal plane to tap rubber, and the air piercing device is combined to release stimulating gas to promote rubber production to the rubber tree, the motion trajectory of the rubber tapping knife coincides with the force direction of the rubber tapping knife, the bark of the rubber tree is easily cut, and the stability is strong.

Description

Technical Field

[0001] The invention relates to the technical field of rubber tapping machines, and in particular to a tangential rubber tapping machine and a method. Background Art

[0002] Rubber tapping is to cut the outer skin and bast of rubber trees, so that latex (glue) flows out and is collected in a rubber bowl. The rubber tapping machine of the prior art generally adopts: a driving mechanism is used to drive the rubber tapping knife to do spiral motion along the rubber trunk, and a spiral incision is cut on the rubber tree during the movement of rubber tapping, and latex flows out from the incision. For example, the Chinese invention patent with the publication number of CN114402947A: natural rubber intelligent bundled tree-profiling automatic rubber tapping machine and use method, which adopts two driving mechanisms to drive the rubber tapping knife to do circular motion and linear motion respectively, so that the combined motion of the rubber tapping knife is spiral motion. For example, the Chinese utility model patent with the publication number of CN209283910U: a kind of automatic rubber tapping machine, which adopts a driving mechanism to drive the rubber tapping knife to move along the spiral guide rail. However, when the above-mentioned rubber tapping method cuts the rubber bark, the motion trajectory of the rubber tapping knife does not overlap with the force direction of the rubber tapping knife, and it is not easy to cut the bark of the rubber tree, and the stability is poor. Summary of the invention

[0003] In view of the above-mentioned prior art, the present invention provides a tangential rubber tapping machine and method, which utilizes a linear drive mechanism to drive the tapping knife to move along a straight line inclined to a horizontal plane to tap rubber, and at the same time combines with an air piercing device to release stimulating gas that promotes rubber production to the rubber tree. The movement trajectory of the tapping knife coincides with the force direction of the tapping knife, which makes it easy to cut the bark of the rubber tree and has strong stability.

[0004] The technical solution of the present invention is achieved in this way:

[0005] A tangent-type rubber tapping machine comprises a rubber tapping knife, a linear drive mechanism and an air pricking device. The linear drive mechanism is arranged at the rubber tapping position of a rubber tree. The linear drive mechanism drives the rubber tapping knife to move along a straight line inclined to a horizontal plane. The rubber tapping knife cuts the rubber bark during the movement. The air pricking device is used for releasing stimulating gas for promoting rubber production to the rubber tree.

[0006] Furthermore, it also includes a fixing frame fixed on the rubber tree, the fixing frame includes a fixing seat, an elastic band and a guide rod, the two ends of the elastic band are connected to the fixing seat to form a clamp assembly surrounding the rubber tree trunk, the two fixing seats are arranged along the rubber tree trunk, the two ends of the guide rod are respectively connected to the two fixing seats, and the linear drive mechanism can slide and be fixed on the guide rod.

[0007] Furthermore, the fixing seat is provided with a universal foot cup, a screw of the universal foot cup is threadedly connected to the fixing seat, and the end of the universal foot cup faces the center of the clamp assembly.

[0008] Furthermore, the linear drive mechanism includes a first motor, a first screw, a first guide rail, a first sliding seat and a first fixed plate, the first fixed plates are respectively fixed at both ends of the first guide rail, the first screw is rotatably connected to the first fixed plate, the first motor is used to drive the first screw to rotate, the first sliding seat is slidably connected to the first guide rail, the first sliding seat is threadedly matched with the first screw, and when the first screw rotates, it drives the first sliding seat to move along the axial direction of the first screw, and the rubber tapping knife is installed on the first sliding seat.

[0009] Furthermore, it also includes a blade fixing seat and a first screw, the rubber tapping knife is provided with a strip-shaped positioning hole, the first screw passes through the positioning hole and fixes the rubber tapping knife on the blade fixing seat, the blade fixing seat is connected to the first sliding seat, the blade fixing seat is provided with a U-shaped groove, and the second screw fixes the blade fixing seat to the first sliding seat through the U-shaped groove.

[0010] Furthermore, the gas pricking device includes an air reservoir, a conduit, a control valve and a stimulation air chamber. The air reservoir is filled with a stimulation gas for promoting rubber production. The air reservoir is connected to the stimulation air chamber through the conduit. The conduit is provided with the control valve. The stimulation gas in the air reservoir passes through the conduit and the stimulation air chamber in sequence and is released to the periphery of the rubber tree tapping area.

[0011] Furthermore, it also includes a protective cover, which covers the tangential rubber tapping machine. The protective cover includes a support bracket, a support ring, a protective film and a flexible strap. The flexible strap fixes the support bracket on the rubber tree. The protective film covers the top of the support bracket, and the protective film extends downward from the four sides of the support bracket to form a cylindrical protective structure. The support ring is provided at the bottom of the protective structure.

[0012] Furthermore, the linear drive mechanism is installed on a lifting mechanism, and the lifting mechanism drives the linear drive mechanism to move up and down. The lifting mechanism includes a second motor, a second screw, a second sliding seat and a second guide rail. The second guide rail is fixed at a preset position of the rubber tree. The second sliding seat is slidably connected to the second guide rail. The second sliding seat is threadably matched with the second screw. The first motor drives the second screw to rotate, and the linear drive mechanism is installed on the second sliding seat.

[0013] Furthermore, the second screw is provided with a sensing plate, which is a round plate with a number of protrusions or grooves around it. A sensor is provided above or below the sensing plate. The sensor determines the rotation angle of the screw by detecting the approach and distance of the protrusions or grooves. The sensor is connected to the controller signal, and the controller is connected to the second motor signal.

[0014] A tangential rubber tapping method comprises cutting a rubber guide line on a rubber tree along the axis of the trunk, using a rubber tapping knife to move along a straight line inclined to a horizontal plane to cut the rubber bark, the lower end of the cutting track extends to the rubber guide line, and using an air piercing device to release stimulating gas for promoting rubber production around the rubber tree, so that the glue produced by the rubber flows along the cutting track to the rubber guide line, and then flows downward along the rubber guide line into a rubber bowl.

[0015] The beneficial effects of the present invention are as follows: the present invention overcomes the prejudice of the prior art that spiral tracks are generally used for rubber tapping, and uses a linear drive mechanism to drive the rubber tapping knife to move along a straight line inclined to the horizontal plane to tap rubber, and at the same time, a gas piercing device is combined to release stimulating gas that promotes rubber production to the rubber tree, and the movement trajectory of the rubber tapping knife coincides with the force direction of the rubber tapping knife, so that the bark of the rubber tree can be easily cut, and the stability is strong. The rubber tapping method of the present invention using straight-line cutting can make the rubber tapping line short, and the method of gas stimulation combined with short-line straight cutting can achieve high-efficiency rubber tapping, which can save labor and obtain ideal yields, and compared with long-line cutting, short-line cutting can make the equipment lighter and simpler in design, greatly reducing the equipment cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only preferred embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a structural schematic diagram of a tangential rubber tapping machine of the present invention;

[0018] Figure 2 It is a structural schematic diagram of the fixing frame of the present invention;

[0019] Figure 3 It is a structural schematic diagram of the linear drive mechanism of the present invention;

[0020] Figure 4 It is a structural schematic diagram of the blade fixing seat of the present invention;

[0021] Figure 5 It is a structural schematic diagram of a linear drive mechanism equipped with a blade fixing seat according to the present invention;

[0022] Figure 6 It is a schematic structural diagram of the air piercing device of the present invention;

[0023] Figure 7 It is a schematic diagram of the structure of the protective cover of the present invention;

[0024] Figure 8 It is a structural schematic diagram of the lifting mechanism of the present invention;

[0025] In the figure, 1 is a rubber cutting knife, 2 is a linear drive mechanism, 3 is an air piercing device, 5 is a fixing frame, 6 is a fixing seat, 7 is an elastic band, 8 is a guide rod, 9 is a universal foot cup, 10 is a first motor, 11 is a first screw, 12 is a first guide rail, 13 is a first sliding seat, 14 is a first fixing plate, 15 is a blade fixing seat, 16 is a first screw, 17 is a positioning hole, 18 is a U-shaped groove, 19 is a second screw, 20 is an air reservoir, 21 is a conduit, 22 is a control valve, 23 is a stimulation air chamber, 24 is a protective cover, 25 is a supporting bracket, 26 is a supporting ring, 27 is a protective film, 28 is a flexible binding belt, 29 is a lifting mechanism, 30 is a second motor, 31 is a second screw, 32 is a second sliding seat, 33 is a second guide rail, 34 is a sensing sheet, 35 is a sensor, 36 is a rubber bowl, 37 is a rubber guide sheet, and 38 is a rubber guide line. DETAILED DESCRIPTION

[0026] In order to better understand the technical content of the present invention, specific embodiments are provided below, and the present invention is further described in conjunction with the accompanying drawings.

[0027] See also Figures 1 to 8 A tangent-type rubber tapping machine comprises a rubber tapping knife 1, a linear drive mechanism 2 and an air pricking device 3. The linear drive mechanism 2 is arranged at the rubber tapping position of a rubber tree. The linear drive mechanism 2 drives the rubber tapping knife 1 to move along a straight line direction inclined to a horizontal plane. The rubber tapping knife 1 cuts the rubber bark during the movement process. The air pricking device 3 is used to release stimulating gas to promote rubber production to the rubber tree.

[0028] Compared with the prior art, the tangent-type rubber tapping machine provided by the present invention, when in use, the linear drive mechanism 2 is installed on the rubber tapping part of the rubber tree, the linear drive mechanism 2 can be installed by a hoop, or the linear drive mechanism 2 can be installed on a base fixed on the ground. The linear motion mechanism is a mechanism that makes a certain point on a component perform accurate or approximate linear motion, such as a screw nut, an electric telescopic rod or a hydraulic telescopic mechanism, and drives the rubber tapping knife 1 to move along a straight line inclined to the horizontal plane when the linear motion mechanism works, and the rubber tapping knife 1 cuts the rubber bark during the moving process, and glue flows out from the cut bark. The movement trajectory of the rubber tapping knife 1 always coincides with the force direction of the rubber tapping knife 1, so that the bark of the rubber tree is more easily cut open, and after cutting the rubber skin, the gas piercing device 3 is used to release irritating gas, preferably ethylene gas is the irritating gas, and the irritating gas acts on the rubber tree to promote the rubber production of the rubber tree. The present invention adopts a straight-line cutting method for rubber tapping to shorten the rubber tapping line. The gas stimulation combined with the short-line straight cutting method can achieve high-efficiency rubber tapping, which can save labor and obtain ideal output. Compared with long-line cutting, short-line cutting can make the equipment lighter and simpler in design, greatly reducing the equipment cost.

[0029] The present invention adopts a linear drive mechanism 2, which is simpler, easier to implement and more stable than a drive mechanism of a spatial spiral curve. For example, compared with the spiral track in the prior art, the drive structure is simpler, and compared with the prior art, the structure of setting two drive mechanisms to drive the rubber tapping knife 1 to perform circular motion and linear motion respectively is also simpler and more stable.

[0030] Specifically, it also includes a fixed frame 5 fixed on the rubber tree, the fixed frame 5 includes a fixed seat 6, an elastic band 7 and a guide rod 8, the two ends of the elastic band 7 are connected to the fixed seat 6 to form a hoop assembly surrounding the rubber trunk, two fixed seats 6 are arranged along the rubber trunk, the two ends of the guide rod 8 are respectively connected to the two fixed seats 6, and the linear drive mechanism 2 can slide and be fixed on the guide rod 8. The two ends of the fixed seat 6 are connected with the elastic band 7, and the elastic band 7 and the fixed seat 6 are tied up after surrounding the trunk, so as to be fixed on the rubber tree. Two fixed seats 6 are arranged along the axial direction of the rubber trunk, and the fixed seat 6 is respectively fixed on the rubber tree with the elastic band 7. A guide rod 8 is arranged between the two fixed seats 6, and the two ends of the guide rod 8 are respectively connected to the two fixed seats 6, and the linear drive mechanism 2 is installed on the guide rod 8, and the linear drive mechanism 2 can slide along the guide rod 8 and be fixed on the guide rod 8. Before each rubber tapping, the linear drive mechanism 2 can be moved downward and then fixed, so that the rubber tapping knife 1 moves downward by a preset distance to tap rubber and change rows. After the rubber tapping and changing rows, the linear drive mechanism 2 is used again to drive the rubber tapping knife 1 to move and tap rubber. The linear drive mechanism 2 is installed on the rubber tapping machine through the fixed frame 5, and is fixed after moving along the guide rod 8 during the row change. It is not necessary to adjust the installation position of the fixed frame 5, and the operation is convenient. The linear drive mechanism 2 can be fixed on the guide rod 8 by a locking nut or a buckle connection.

[0031] Specifically, the fixing seat 6 is provided with a universal foot cup 9, the screw of the universal foot cup 9 is threadedly connected to the fixing seat 6, and the end of the universal foot cup 9 faces the center of the clamp assembly. The universal foot cup 9 can adjust the support angle, and the screw can adjust the extension length of the universal foot cup 9, thereby improving the stability of the fixing seat 6 and the rubber tree.

[0032] Specifically, the linear drive mechanism 2 includes a first motor 10, a first screw 11, a first guide rail 12, a first sliding seat 13 and a first fixed plate 14. The first fixed plates 14 are fixed to both ends of the first guide rail 12. The first screw 11 is rotatably connected to the first fixed plate 14. The first motor 10 is used to drive the first screw 11 to rotate. The first sliding seat 13 is slidably connected to the first guide rail 12. The first sliding seat 13 is threadedly matched with the first screw 11. When the first screw 11 rotates, the first sliding seat 13 is driven to move along the axial direction of the first screw 11. The rubber tapping knife 1 is installed on the first sliding seat 13. The first sliding seat 13 is slidably connected to the first guide rail 12, so the first sliding seat 13 can only slide along the first guide rail 12, and the first sliding seat 13 cannot rotate relative to the first guide rail 12. When the first motor 10 rotates, the first screw 11 is driven to rotate. Since the first screw 11 is threadedly matched with the first sliding seat 13, the first screw 11 is driven to move along the axial direction of the first screw 11 when the first screw 11 rotates. The rubber tapping knife 1 is installed on the first sliding seat 13, and when the first motor 10 rotates, the rubber tapping knife 1 can be driven to move along the inclined straight line at a preset angle with the horizontal plane, and the movement of the rubber tapping knife 1 is used to tap rubber trees. The two ends of the first screw rod 11 are rotatably connected with the two first fixed plates 14 to ensure that the first screw rod 11 can rotate. The two ends of the first guide rail 12 are connected with the first fixed plate 14, which improves the stability of the first guide rail 12 and ensures that the sliding seat is driven to slide when the first motor 10 rotates. The first motor 10 can be installed on the first fixed plate 14, and its output shaft is connected with the first screw rod 11. The first guide rail 12 is not limited to the type of round rod guide column, and can also be a slidable structure such as a square tube and a linear rail.

[0033] Specifically, it also includes a blade fixing seat 15 and a first screw 16. The rubber tapping knife 1 is provided with a strip-shaped positioning hole 17. The first screw 16 passes through the positioning hole 17 and fixes the rubber tapping knife 1 on the blade fixing seat 15. The blade fixing seat 15 is connected to the first sliding seat 13. The blade fixing seat 15 is provided with a U-shaped groove 18. The second screw 19 fixes the blade fixing seat 15 on the first sliding seat 13 through the U-shaped groove 18. The first screw 16 passes through the positioning hole 17 and is tightened on the blade fixing seat 15. The tightened first screw 16 fixes the rubber tapping knife 1 on the blade fixing seat 15. The positioning hole 17 provided on the rubber tapping knife 1 is strip-shaped, so the position of the rubber tapping knife 1 can be adjusted, thereby adjusting the depth of the rubber tapping knife 1 cutting the rubber bark. The blade fixing seat 15 is connected to the first sliding seat 13, a U-shaped groove 18 is arranged on the blade fixing seat 15, and the blade fixing seat 15 is fixed to the first sliding seat 13 through the U-shaped groove 18 by a second screw 19, and the blade fixing seat 15 is driven to move when the first sliding seat 13 moves, so as to drive the rubber tapping knife 1 to move and cut the rubber bark. The U-shaped groove can make the blade be adjusted forward and backward according to the rubber tapping depth requirement when it is fixed, so as to avoid cutting deep and hurting the tree, and cutting shallow and no rubber. The installation method of the blade can realize positive knife tapping or negative knife tapping, that is, positive knife tapping is performed when the blade edge is facing upward, and negative knife tapping is performed when the blade edge is facing downward.

[0034] Specifically, the gas pricking device 3 includes a gas reservoir 20, a conduit 21, a control valve 22 and a stimulation air chamber 23. The gas reservoir 20 is filled with a stimulating gas for promoting rubber production. The gas reservoir 20 is connected to the stimulation air chamber 23 through the conduit 21. The conduit 21 is provided with the control valve 22. The stimulating gas in the gas reservoir 20 is released to the periphery of the rubber tree tapping site after passing through the conduit 21 and the stimulation air chamber 23 in sequence. The gas reservoir 20 is filled with stimulating gas, such as ethylene gas. The gas reservoir 20 is connected to the stimulation air chamber 23 through the conduit 21. The control valve 22 is provided on the conduit 21. The opening degree of the conduit 21 is adjusted by the control valve 22. After the conduit 21 is opened, the gas is released from the gas reservoir 20 into the stimulation air chamber 23 and then discharged from the stimulation air chamber 23. The end of the stimulation air chamber 23 is provided with a metal sheet, which is inserted into the rubber bark, so that the stimulation air chamber 23 and the bark form a closed space, and the gas is slowly released from the pores of the stimulation air chamber 23 to stimulate the rubber tree to produce rubber. The control valve 22 can adopt an electromagnetic control valve 22, which is connected to the controller signal, and the opening angle, frequency and time of the control valve 22 are controlled by the controller, so as to control the duration and number of stimulations, and adapt to different cutting system requirements. The stimulation air chamber of the present invention is not limited to 1 or 2, and the catheter can be replaced as required to expand to multiple stimulation points.

[0035] Specifically, it also includes a protective cover 24, which covers the tangent-type rubber tapping machine. The protective cover 24 includes a support bracket 25, a support ring 26, a protective film 27 and a flexible band 28. The flexible band 28 fixes the support bracket 25 on the rubber tree. The protective film 27 covers the top of the support bracket 25, and the protective film 27 extends downward from the four sides of the support bracket 25 to form a cylindrical protective structure. The bottom of the protective structure is provided with the support ring 26. The protective cover 24 is used to cover the entire tangent-type rubber tapping machine to prevent rain from getting wet, improve the protection of the rubber tapping machine, and avoid pollution of the cutting surface on rainy days, so that rubber can be tapped on rainy days and the efficiency of rubber tapping can be improved. The support bracket 25 is fixed to the rubber tree trunk by using a flexible strap 28, the protective film 27 covers the top of the support bracket 25, and the protective film 27 extends downward from the four sides of the support bracket 25 to form a cylindrical protective structure, and a support ring 26 is provided at the bottom of the protective structure. The support ring 26 props up the lower end of the protective film 27, and the support ring 26 has a certain gravity, so that the protective film 27 droops downward.

[0036] Specifically, the linear drive mechanism 2 is installed on the lifting mechanism 29, and the lifting mechanism 29 drives the linear drive mechanism 2 to move up and down. The lifting mechanism 29 includes a second motor 30, a second screw rod 31, a second sliding seat 32 and a second guide rail 33, and the second guide rail 33 is fixed at a preset position of the rubber tree. The second sliding seat 32 is slidably connected with the second guide rail 33, and the second sliding seat 32 is threadedly matched with the second screw rod 31. The first motor 10 drives the second screw rod 31 to rotate, and the linear drive mechanism 2 is installed on the second sliding seat 32. When the second motor 30 rotates, it drives the second screw rod 31 to rotate, and the second sliding seat 32 is threadedly matched with the second screw rod 31. At the same time, the second sliding seat 32 is slidably connected with the second guide rail 33, so that when the second screw rod 31 rotates, the second sliding seat 32 can be driven to move along the axial direction of the second screw rod 31. The second guide rail 33 is fixed at the preset position of the rubber tree, and can be fixed on the fixed seat 6, or fixed to the ground through other bases, so that the second guide rail 33 is located at the preset position of the rubber tree. When the second sliding seat 32 moves up and down, it can drive the linear drive mechanism 2 to move up and down, thereby realizing the line change of the rubber cutting knife 1. The second motor 30 can be connected to the controller signal, and the controller is used to control the time and speed of the second motor 30 rotation. The second guide rail 33 is not limited to the type of round rod guide column, and can also be a slidable structure such as a square tube, a linear rail, etc.

[0037] Specifically, the second screw 31 is provided with a sensing sheet 34, which is a round sheet with a plurality of protrusions or grooves on the periphery. A sensor 35 is provided above or below the sensing sheet 34. The sensor 35 determines the angle of rotation of the screw by detecting the approach and distance of the protrusion or groove. The sensor 35 is connected to the controller by signal, and the controller is connected to the second motor 30 by signal. When the second screw 31 rotates, the sensing sheet 34 is driven to rotate. When the sensing sheet 34 rotates, the protrusion or groove is driven to sweep the sensor 35. The sensor 35 can be a photoelectric sensor 35 or a Hall sensor 35. When the protrusion or groove of the sensing sheet 34 passes through the sensor 35, the potential of the sensor 35 will change. The sensor 35 transmits the detected information to the controller. The controller determines the angle of rotation of the second screw 31 according to the received signal, thereby controlling the start and stop of the second motor 30, and automatically controlling the lifting distance of the linear drive mechanism 2. Optionally, the second guide rail and the guide rod 8 can be the same component. The sensing sheet 34 cooperates with the sensor 35 to control the angle of rotation of the screw, thereby controlling the skin thickness consumed by rubber tapping. A tangent-type rubber tapping method includes cutting a rubber guide line 38 along the axis of a trunk on a rubber tree, using a rubber tapping knife 1 to move and cut the rubber bark along a straight line inclined to a horizontal plane, the moving track of the rubber tapping knife 1 coincides with the force direction of the rubber tapping knife 1 during cutting, and the rubber bark can be easily cut, the lower end of the cutting track extends to the rubber guide line 38, the glue flowing out of the rubber tree after cutting will flow downward along the rubber tapping track, and eventually flow into the rubber guide line 38, and flow into the rubber bowl 36 along the rubber guide line 38, and after rubber tapping, a gas piercing device 3 is used to release a stimulating gas that promotes rubber production around the rubber tree, and the stimulating gas can be ethylene gas, which promotes rubber production in the rubber tree and improves the rubber tapping yield. The present invention utilizes gas to stimulate rubber tree rubber production in combination with linear rubber tapping, which can not only shorten the distance of rubber tapping, but also the force of the rubber tapping knife 1 coincides with the movement track during rubber tapping, and rubber tapping is easier. Since straight-line cutting is adopted, the driving mechanism for driving the rubber tapping knife 1 to move is simpler and cheaper than the traditional driving mechanism for driving the rubber tapping knife 1 to move in a spiral track. The present invention overcomes the prejudice of the prior art that spiral track rubber tapping is generally adopted in rubber tapping, and reduces the difficulty of rubber tapping through the organic combination of straight-line rubber tapping and gas stimulation, thereby improving production efficiency.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tangential rubber tapping machine, characterized in that: It comprises a rubber tapping knife, a linear drive mechanism and an air pricking device, wherein the linear drive mechanism is arranged at the rubber tapping position of the rubber tree, the linear drive mechanism drives the rubber tapping knife to move along a straight line direction inclined to the horizontal plane, the rubber tapping knife cuts the rubber bark during the movement, the air pricking device is used to release stimulating gas for promoting rubber production to the rubber tree, the linear drive mechanism is installed on a lifting mechanism, the lifting mechanism drives the linear drive mechanism to move up and down, the lifting mechanism comprises a second motor, a second screw, a second sliding seat and a second guide rail, the second guide rail is fixed at a preset position of the rubber tree, the second sliding seat is slidably connected to the second guide rail, the second sliding seat is threadedly matched with the second screw, the second motor drives the second screw to rotate, and the linear drive mechanism is installed on the second sliding seat.

2. A tangential rubber tapping machine according to claim 1, characterized in that: It also includes a fixing frame fixed on the rubber tree, the fixing frame includes a fixing seat, an elastic band and a guide rod, the two ends of the elastic band are connected to the fixing seat to form a clamp assembly surrounding the rubber tree trunk, the two fixing seats are arranged along the rubber tree trunk, the two ends of the guide rod are respectively connected to the two fixing seats, and the linear drive mechanism can slide and be fixed on the guide rod.

3. A tangential rubber tapping machine according to claim 2, characterized in that: The fixing seat is provided with a universal foot cup, the screw of the universal foot cup is threadedly connected to the fixing seat, and the end of the universal foot cup faces the center of the clamp assembly.

4. A tangential rubber tapping machine according to claim 1, characterized in that: The linear drive mechanism includes a first motor, a first screw, a first guide rail, a first sliding seat and a first fixed plate. The first fixed plates are fixed to both ends of the first guide rail, respectively. The first screw is rotatably connected to the first fixed plate. The first motor is used to drive the first screw to rotate. The first sliding seat is slidably connected to the first guide rail. The first sliding seat is threadably matched with the first screw. When the first screw rotates, it drives the first sliding seat to move along the axial direction of the first screw. The rubber tapping knife is installed on the first sliding seat.

5. A tangential rubber tapping machine according to claim 4, characterized in that: It also includes a blade fixing seat and a first screw. The rubber tapping knife is provided with a strip-shaped positioning hole. The first screw passes through the positioning hole and fixes the rubber tapping knife on the blade fixing seat. The blade fixing seat is connected to the first sliding seat. The blade fixing seat is provided with a U-shaped groove. The second screw fixes the blade fixing seat to the first sliding seat through the U-shaped groove.

6. A tangential rubber tapping machine according to claim 1, characterized in that: The gas pricking device includes an air reservoir, a conduit, a control valve and a stimulation air chamber. The air reservoir is filled with stimulation gas for promoting rubber production. The air reservoir is connected to the stimulation air chamber through the conduit. The conduit is provided with the control valve. The stimulation gas in the air reservoir passes through the conduit and the stimulation air chamber in sequence and is released to the periphery of the rubber tree tapping area.

7. A tangential rubber tapping machine according to claim 1, characterized in that: It also includes a protective cover, which covers the tangential rubber tapping machine. The protective cover includes a support bracket, a support ring, a protective film and a flexible strap. The flexible strap fixes the support bracket on the rubber tree. The protective film covers the top of the support bracket, and the protective film extends downward from the four sides of the support bracket to form a cylindrical protective structure. The support ring is provided at the bottom of the protective structure.

8. A tangential rubber tapping machine according to claim 1, characterized in that: The second screw is provided with a sensing plate, which is a round plate with a number of protrusions or grooves around it. A sensor is provided above or below the sensing plate. The sensor determines the rotation angle of the screw by detecting the approach and distance of the protrusions or grooves. The sensor is connected to the controller signal, and the controller is connected to the second motor signal.

9. A rubber tapping method for a tangential rubber tapping machine according to claim 1, characterized in that: The method includes cutting a rubber guide line along the axis of the rubber tree trunk, using a rubber tapping knife to move along a straight line inclined to a horizontal plane to cut the rubber bark, the lower end of the cutting track extends to the rubber guide line, and using an air piercing device to release stimulating gas that promotes rubber production around the rubber tree. The glue produced by the rubber flows along the cutting track to the rubber guide line, and then flows downward along the rubber guide line into the rubber bowl.

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